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Low cost high performance Raman spectrometer v01 2017
 
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Se presentan detalles del espectrómetro Raman de bajo costo publicado en: Montoya E, Arbildo A, Baltuano O. A homemade cost effective Raman spectrometer with high performance. Journal of Laboratory Chemical Education. 2015, 3(4):67-75. http://www.sapub.org/journal/articles.aspx?journalid=1139.
Views: 4200 Eduardo Montoya Rossi
Computational Chemistry 1.4 - Drawing Molecules
 
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Short lecture demonstrating the use of Avogadro. Avogadro can be used to generate an initial guess structure of any molecule with any elements, bond structure, or bond types. Optimization and other manipulations can help to greatly improve the initial structure. --- About TMP Chem --- All TMP Chem content is free for everyone, everywhere, and created independently by Trent Parker. Email: [email protected] --- Video Links --- Course Playlist: https://www.youtube.com/playlist?list=PLm8ZSArAXicIWTHEWgHG5mDr8YbrdcN1K Other Courses: https://www.youtube.com/playlist?list=PLm8ZSArAXicIXArfap9Tcb8izqRPvE0BK Channel Info: https://www.youtube.com/playlist?list=PLm8ZSArAXicLlGO4Rvpz-D6vX8MFbOn4V --- Social Links --- Facebook: https://www.facebook.com/tmpchem Twitter: https://www.twitter.com/tmpchem LinkedIn: https://www.linkedin.com/in/tmpchem Imgur: https://tmpchem.imgur.com GitHub: https://www.github.com/tmpchem --- Equipment --- Microphone: Blue Yeti USB Microphone Drawing Tablet: Wacom Intuos Pen and Touch Small Drawing Program: Autodesk Sketchbook Express Screen Capture: Corel Visual Studio Pro X8
Views: 3776 TMP Chem
How researchers invented superman vision
 
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Teach yourself the physics of LASERs using Brilliant! http://www.brilliant.org/SimonClark With thanks to the lovely people at the Central Laser Facility! https://www.clf.stfc.ac.uk/Pages/home.aspx References and further reading: (1) While LASER light is commonly used today, Raman's initial experiment was actually with filtered sunlight! https://www.sas.upenn.edu/~crulli/HistoricalPerspective.html (2) See e.g. https://en.wikipedia.org/wiki/Elastic_scattering (3) https://en.wikipedia.org/wiki/Raman_scattering (4) https://en.wikiversity.org/wiki/Spectroscopy/Molecular_energy_levels (5) Much more information about this at (3) (6) e.g. for mineral spectra http://rruff.info/ (7) Pavel's original paper: https://journals.sagepub.com/doi/10.1366/0003702053641450 (8) For more information about photon migration: https://sites.google.com/site/dosiatbli/theory/photon-migration (9) Note that the circles here show the relative strengths of the signals - the two signals are much weaker in the second measurement (10) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3144975/ You can support the channel by donating at http://www.patreon.com/simonoxfphys Check out my website! https://www.simonoxfphys.com/ ---------- II ---------- Vlogs from Oxford students - http://www.youtube.com/oxvlog My twitter - http://www.twitter.com/simonoxfphys My facebook - http://www.facebook.com/youtubesimon My insta - http://www.instagram.com/simonoxfphys My goodreads - http://www.goodreads.com/simonoxfphys ---------- II ---------- Music by Epidemic Sound: http://epidemicsound.com Huge thanks to my supporters on Patreon: Dan Hanvey, David Efird, Suzanna Hofman, Amy Hadden, Ethan Fuller, Charles Bray, Jay Wright, Louis Gillet, Michael Phillips, Martin Hermes, Cameron Matchett, Lachlan Woods, Tim Boxall, Gabriele Mozzicato, Jawad Alalasi, Gaia Frazao Nery, Kodzo, Claire Anthony, Eve Dillon, Rowan Gow, Matthias Loos, James Bridges, James Craig, Sanaa Al Derei, Mark Anthony Magro, Liam, Wendover Productions, Kendra Johnson, Caitlin Louise, Daniel Blume Høj, Leighton Mackenzie, Thusto, Fernán González, Paul Everitt, Kendall Hendrix, Jia Xin Peng, Jonathan Trimble, Ryke Allen.
Views: 7486 Simon Clark
Science: Witness or Savior?
 
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Darren Williams received a PhD in chemistry from Oregon State University in 1998 and a BS in chemistry from the University of Texas at Austin in 1992. He began his academic career at West Texas A&M University (1997–2001) and continued it at Sam Houston State University (2004–present). The interim was spent in industry at BWXT Pantex in Amarillo, Texas (2001–2004). Dr. Williams has applied infrared and Raman spectroscopy to polymer-bound explosive analysis, to surface analysis, and to cleaning verification. He has published over two dozen articles and book chapters. Follow RTB_Official for updates! Facebook: https://www.facebook.com/RTBofficial Twitter: https://twitter.com/RTB_official Instagram: http://instagram.com/rtb_official Website: http://www.reasons.org
Views: 525 Reasons to Believe
What is ATOMIC EMISSION SPECTROSCOPY? What does ATOMIC EMISSION SPECTROSCOPY mean?
 
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✪✪✪✪✪ WORK FROM HOME! Looking for WORKERS for simple Internet data entry JOBS. $15-20 per hour. SIGN UP here - http://jobs.theaudiopedia.com ✪✪✪✪✪ ✪✪✪✪✪ The Audiopedia Android application, INSTALL NOW - https://play.google.com/store/apps/details?id=com.wTheAudiopedia_8069473 ✪✪✪✪✪ What is ATOMIC EMISSION SPECTROSCOPY? What does ATOMIC EMISSION SPECTROSCOPY mean? ATOMIC EMISSION SPECTROSCOPY meaning - ATOMIC EMISSION SPECTROSCOPY definition - ATOMIC EMISSION SPECTROSCOPY explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. Atomic emission spectrometry (AES) is a method of chemical analysis that uses the intensity of light emitted from a flame, plasma, arc, or spark at a particular wavelength to determine the quantity of an element in a sample. The wavelength of the atomic spectral line gives the identity of the element while the intensity of the emitted light is proportional to the number of atoms of the element. A sample of a material (analyte) is brought into the flame as either a gas, sprayed solution, or directly inserted into the flame by use of a small loop of wire, usually platinum. The heat from the flame evaporates the solvent and breaks chemical bonds to create free atoms. The thermal energy also excites the atoms into excited electronic states that subsequently emit light when they return to the ground electronic state. Each element emits light at a characteristic wavelength, which is dispersed by a grating or prism and detected in the spectrometer. A frequent application of the emission measurement with the flame is the regulation of alkali metals for pharmaceutical analytics. Inductively coupled plasma atomic emission spectroscopy (ICP-AES) uses an inductively coupled plasma to produce excited atoms and ions that emit electromagnetic radiation at wavelengths characteristic of a particular element. Advantages of ICP-AES are excellent limit of detection and linear dynamic range, multi-element capability, low chemical interference and a stable and reproducible signal. Disadvantages are spectral interferences (many emission lines), cost and operating expense and the fact that samples typically must be in a liquid solution. Spark or arc atomic emission spectroscopy is used for the analysis of metallic elements in solid samples. For non-conductive materials, the sample is ground with graphite powder to make it conductive. In traditional arc spectroscopy methods, a sample of the solid was commonly ground up and destroyed during analysis. An electric arc or spark is passed through the sample, heating it to a high temperature to excite the atoms within it. The excited analyte atoms emit light at characteristic wavelengths that can be dispersed with a monochromator and detected. In the past, the spark or arc conditions were typically not well controlled, the analysis for the elements in the sample were qualitative. However, modern spark sources with controlled discharges can be considered quantitative. Both qualitative and quantitative spark analysis are widely used for production quality control in foundry and metal casting facilities.
Views: 8260 The Audiopedia
Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals | Wikiped ...
 
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This is an audio version of the Wikipedia Article: https://en.wikipedia.org/wiki/Scanning_Habitable_Environments_with_Raman_and_Luminescence_for_Organics_and_Chemicals 00:01:04 1 Goals 00:02:37 2 Construction Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. Listen on Google Assistant through Extra Audio: https://assistant.google.com/services/invoke/uid/0000001a130b3f91 Other Wikipedia audio articles at: https://www.youtube.com/results?search_query=wikipedia+tts Upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts Speaking Rate: 0.7480883177996884 Voice name: en-US-Wavenet-B "I cannot teach anybody anything, I can only make them think." - Socrates SUMMARY ======= Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals (SHERLOC) is an ultraviolet Raman spectrometer that uses fine-scale imaging and an ultraviolet (UV) laser to determine fine-scale mineralogy and detect organic compounds designed for the Mars 2020 rover mission. It is constructed at the Jet Propulsion Laboratory with major subsystems being delivered from Malin Space Science Systems and Los Alamos National Laboratory. The Principal Investigator is Luther Beegle, and the Deputy Principal Investigator is Rohit Bhartia. SHERLOC will have a calibration target with possible Mars suit materials, and it will measure how they change over time in the Martian surface environment.
Views: 0 wikipedia tts
WiSci: Wireless Spectrometer
 
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WiSci: Wireless Spectrometer WiSci is a compact, wireless smartphone spectrometer that helps to non-destructively determine ripeness of apples. To know more checkout this article: http://www.nature.com/articles/srep32504 If you want to build it yourself and do cool things with it, checkout the build instructions here: https://hackaday.io/project/13422-wisci-wireless-spectrometer
Views: 1114 REDX WeSchool
The electron-hole liquid in MoTe2
 
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In this 3D visualization we see the formation of an unusual state of matter, the electron-hole liquid in MoTe2. Normally in MoTe2, energy absorbed from light becomes a gas of electrons (orange dots), holes (blue dots) and excitons (orange and blue pairs). But if this light is generated by a very intense source, like an ultrafast pulsed laser, it can create so many electrons and holes that some of them condense into an electron-hole liquid. This process is very similar to the formation of water droplets from humid air. The electron hole liquid state is rare, normally occurring only a few degrees above absolute zero, but our research shows that in ultrathin MoTe2 photocells it can occur at room temperature! This opens the possibility of electronics that utilize the unusual properties of electron hole liquids. Additional information is available in the UCR Today writeup: https://news.ucr.edu/articles/2019/02/04/uc-riverside-physicists-create-exotic-electron-liquid This research has been published in Nature Photonics: https://www.nature.com/articles/s41566-019-0349-y For more info on our lab's research, please visit http://qmolab.ucr.edu/ The song "Air Hockey Saloon" by Chris Zabriskie (http://freemusicarchive.org/music/Chris_Zabriskie/Vendaface/05_-_Air_Hockey_Saloon) is licensed under CC by 4.0.
Is the Scientific Community Resistant to the Idea of Design?
 
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Learn more about Dr. Darren Williams: http://www.reasons.org/vsp/darren-williams Darren Williams received a PhD in chemistry from Oregon State University in 1998 and a BS in chemistry from the University of Texas at Austin in 1992. He began his academic career at West Texas A&M University (1997–2001) and continued it at Sam Houston State University (2004–present). The interim was spent in industry at BWXT Pantex in Amarillo, Texas (2001–2004). Dr. Williams has applied infrared and Raman spectroscopy to polymer-bound explosive analysis, to surface analysis, and to cleaning verification. He has published over two dozen articles and book chapters. Follow RTB_Official for updates! Facebook: https://www.facebook.com/RTBofficial Twitter: https://twitter.com/RTB_official Instagram: http://instagram.com/rtb_official Website: http://www.reasons.org
Views: 596 Reasons to Believe
Webinar - Quantitative At-Line Portable Raman for Process Control
 
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Quantitative At-Line Portable Raman for Process Control:Development, Validation, and Implementation, with a Pharmaceutical Example In this webinar, viewers will get an inside look at how portable Raman is being developed for at-line quantitation of nonionic surfactants in pharmaceutical formulations at Eli Lilly. In this context, we will examine the advantages of Raman over traditional HPLC methods, such as shorter analysis times, minimal sample prep and ease of at-line implementation. Follow Us Online! Facebook: https://www.facebook.com/BwTek Google Plus: https://www.google.com/+Bwtek Linkedin: https://www.linkedin.com/company/b&w-tek-inc- Twitter: https://twitter.com/bwtek Web: http://www.bwtek.com
Views: 313 B&W Tek
Designing of a 'uniaxial strain' or `hydrostatic' die.
 
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Design of a ‘uniaxial-strain die’ (i.e. ‘hydrostatic die’). A new phenomenon: Sub-Tg, Solid-State, Plasticity-Induced Bonding http://www.nature.com/articles/srep46405
Views: 27 MIT Thin-film
Increasing Speed of UHPLC-MS Analysis of Vitamin D for Research Use
 
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http://www.thermoscientific.com/: Increasing Speed of UHPLC-MS Analysis of Vitamin D for Research Use Speaker: Sarah Fair - Application Scientist Sarah Fair presents her scientific poster about removing manual pipetting from the analysis of vitamin D metabolites, testosterone and cortisol using the accuracy and precision of the Thermo Scientific Platemate Pipetting Workstation. Using the automated system offered significant time savings and passed all acceptance criteria for the compounds tested. Thermo Scientific* Matrix PlateMate 2x3 Automated Workstation is a versatile, six-position automated liquid handling system. Offering eight interchangeable pipetting heads, the Matrix PlateMate 2x3 can be configured for a wide range of applications. The six-position, flexible deck configuration accommodates microplates, tube racks, reservoirs, wash stations, vacuum manifolds and other accessories. All functions are controlled with drag-and-drop ControlMate software for simple, intuitive operation. Download the technical poster notes: http://www.dionex.com/en-us/webdocs/113726-ASMS12_T655_SFair_PN63609_Platemate_Clinical.pdf For latest chromatography news, articles, & applications, read our blog at http://chromblog.thermoscientific.com/blog/, following us on Twitter at https://twitter.com/ChromSolutions, and Like us on Facebook at https://www.facebook.com/ChromatographySolutions.
Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals | Wikiped ...
 
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This is an audio version of the Wikipedia Article: https://en.wikipedia.org/wiki/Scanning_Habitable_Environments_with_Raman_and_Luminescence_for_Organics_and_Chemicals 00:00:50 1 Goals 00:02:04 2 Construction Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. Listen on Google Assistant through Extra Audio: https://assistant.google.com/services/invoke/uid/0000001a130b3f91 Other Wikipedia audio articles at: https://www.youtube.com/results?search_query=wikipedia+tts Upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts Speaking Rate: 0.9380582711697409 Voice name: en-US-Wavenet-E "I cannot teach anybody anything, I can only make them think." - Socrates SUMMARY ======= Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals (SHERLOC) is an ultraviolet Raman spectrometer that uses fine-scale imaging and an ultraviolet (UV) laser to determine fine-scale mineralogy and detect organic compounds designed for the Mars 2020 rover mission. It is constructed at the Jet Propulsion Laboratory with major subsystems being delivered from Malin Space Science Systems and Los Alamos National Laboratory. The Principal Investigator is Luther Beegle, and the Deputy Principal Investigator is Rohit Bhartia. SHERLOC will have a calibration target with possible Mars suit materials, and it will measure how they change over time in the Martian surface environment.
Views: 2 wikipedia tts
Discovery of the Raman effect at the IACS
 
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The Raman effect which has its applications in all fields of natural sciences was discovered in 1928 by CV Raman at the IACS Kolkata. For the discovery CV Raman as the first non-European received the Physics Nobel Prize in 1930. The Russian physicists Landsberg and Mandelstam who eventually at the same time discovered the effect were also nomianted for the NP, but they did not get it. For the controversy on the issue see my articles and visit my webpage to know more.
Views: 1570 rajinder singh
Laser measurement of oxygen with TRANSIC100LP from SICK | SICK AG
 
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More information: http://www.sickinsight-online.com/top-articles/transic100lp-the-right-nose-for-oxygen/ The laser spectrometer for the field level − now also available intrinsically safe Easy to install, low maintenance in operation, rapid order and delivery: measuring oxygen in process can be an extremely simple task. TRANSIC100LP from SICK is a robust transmitter which reliably measures O2 via laser spectrometry. This technology, which up until now has only been commonly deployed in high-tech analysis environments, is available for use in the field. Durable, attractively-priced and also employable in potentially explosive atmospheres. Process parameters are best measured where they are relevant and can be found in an undistorted state -- directly within the process. This also applies to many industrial sectors in terms of oxygen measurement. In-situ is the key word in this context and TRANSIC100LP is the transmitter which provides direct and continuous measurement under process conditions at the percentage level. This factory-configured measuring device is easy to connect and can be used for measurement immediately. There are almost no additional operating or maintenance costs and, similarly, there is often no need for cost-intensive sampling. Perhaps you have been waiting for the new transmitter from SICK. The TRANSIC100LP combines the robustness and simplicity of a field device with the advantages of in-situ laser technology in an inherently safe design, all at an attractive price. Product information: www.sick.com/transic100lp --------------------------------------------------------------------------------­------------------------ Subscribe to our YouTube channel and watch all videos from SICK: http://www.youtube.com/sicksensors --------------------------------------------------------------------------------------------------- For information and general inquiries please contact: SICK AG Erwin-Sick-Str. 1 79183 Waldkirch, Germany http://www.sick.com
The Creator’s Fingerprints in Nature
 
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Learn more about Dr. Darren Williams: http://www.reasons.org/vsp/darren-williams Darren Williams received a PhD in chemistry from Oregon State University in 1998 and a BS in chemistry from the University of Texas at Austin in 1992. He began his academic career at West Texas A&M University (1997–2001) and continued it at Sam Houston State University (2004–present). The interim was spent in industry at BWXT Pantex in Amarillo, Texas (2001–2004). Dr. Williams has applied infrared and Raman spectroscopy to polymer-bound explosive analysis, to surface analysis, and to cleaning verification. He has published over two dozen articles and book chapters. Follow RTB_Official for updates! Facebook: https://www.facebook.com/RTBofficial Twitter: https://twitter.com/RTB_official Instagram: http://instagram.com/rtb_official Website: http://www.reasons.org
Views: 582 Reasons to Believe
Has Science Ever Caused You to Doubt Your Faith?
 
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Learn more about Dr. Darren Williams: http://www.reasons.org/vsp/darren-williams Darren Williams received a PhD in chemistry from Oregon State University in 1998 and a BS in chemistry from the University of Texas at Austin in 1992. He began his academic career at West Texas A&M University (1997–2001) and continued it at Sam Houston State University (2004–present). The interim was spent in industry at BWXT Pantex in Amarillo, Texas (2001–2004). Dr. Williams has applied infrared and Raman spectroscopy to polymer-bound explosive analysis, to surface analysis, and to cleaning verification. He has published over two dozen articles and book chapters. Follow RTB_Official for updates! Facebook: https://www.facebook.com/RTBofficial Twitter: https://twitter.com/RTB_official Instagram: http://instagram.com/rtb_official Website: http://www.reasons.org
Views: 392 Reasons to Believe
Host-guest chemistry | Wikipedia audio article
 
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This is an audio version of the Wikipedia Article: https://en.wikipedia.org/wiki/Host%E2%80%93guest_chemistry 00:00:48 1 Overview 00:02:50 2 Thermodynamic principles of host–guest interactions 00:05:58 3 Determination of binding constant values 00:06:09 3.1 Simple host-guest complexation 00:11:03 3.1.1 NMR data 00:12:59 3.1.2 Absorbance data 00:14:34 3.1.3 Fluorescencence data 00:15:37 3.2 Calorimetry 00:17:55 3.3 General complexation reaction 00:21:31 4 Determination of standard enthalpy and entropy change values 00:26:39 5 Experimental techniques 00:26:49 5.1 Nuclear magnetic resonance 00:30:14 5.2 UV-vis spectroscopy 00:33:30 5.3 Isothermal titration calorimetry 00:40:07 6 Applications 00:40:16 6.1 Raman spectroscopy 00:43:13 6.2 Cooperativity 00:49:39 6.3 Superconductivity 00:49:59 6.4 Biological application 00:52:18 6.5 Sensing 00:54:56 6.6 Conformational switching 00:55:57 6.7 Environmental applications Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. Listen on Google Assistant through Extra Audio: https://assistant.google.com/services/invoke/uid/0000001a130b3f91 Other Wikipedia audio articles at: https://www.youtube.com/results?search_query=wikipedia+tts Upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts Speaking Rate: 0.9262251387318845 Voice name: en-AU-Wavenet-A "I cannot teach anybody anything, I can only make them think." - Socrates SUMMARY ======= In supramolecular chemistry, host–guest chemistry describes complexes that are composed of two or more molecules or ions that are held together in unique structural relationships by forces other than those of full covalent bonds. Host–guest chemistry encompasses the idea of molecular recognition and interactions through noncovalent bonding. Noncovalent bonding is critical in maintaining the 3D structure of large molecules, such as proteins and is involved in many biological processes in which large molecules bind specifically but transiently to one another. There are four commonly mentioned types of non-covalent interactions: hydrogen bonds, ionic bonds, van der Waals forces, and hydrophobic interactions.
Views: 18 wikipedia tts
Mössbauer spectroscopy | Wikipedia audio article
 
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This is an audio version of the Wikipedia Article: Mössbauer spectroscopy Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. You can find other Wikipedia audio articles too at: https://www.youtube.com/channel/UCuKfABj2eGyjH3ntPxp4YeQ In case you don't find one that you were looking for, put a comment. This video uses Google TTS en-US-Standard-D voice. SUMMARY ======= Mössbauer spectroscopy is a spectroscopic technique based on the Mössbauer effect. This effect, discovered by Rudolf Mössbauer (also Moessbauer, German: "Mößbauer") in 1958, consists in the nearly recoil-free, resonant absorption and emission of gamma rays in solids. Like nuclear magnetic resonance spectroscopy, Mössbauer spectroscopy probes tiny changes in the energy levels of an atomic nucleus in response to its environment. Typically, three types of nuclear interactions may be observed: isomer shift, also called chemical shift in the older literature; quadrupole splitting; and magnetic hyperfine splitting (see also the Zeeman effect). Due to the high energy and extremely narrow line widths of gamma rays, Mössbauer spectroscopy is a very sensitive technique in terms of energy (and hence frequency) resolution, capable of detecting changes in just a few parts per 1011.
Views: 63 wikipedia tts
Does Quantum Mechanics Explain the Universe?
 
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Learn more about Dr. Darren Williams: http://www.reasons.org/vsp/darren-williams Darren Williams received a PhD in chemistry from Oregon State University in 1998 and a BS in chemistry from the University of Texas at Austin in 1992. He began his academic career at West Texas A&M University (1997–2001) and continued it at Sam Houston State University (2004–present). The interim was spent in industry at BWXT Pantex in Amarillo, Texas (2001–2004). Dr. Williams has applied infrared and Raman spectroscopy to polymer-bound explosive analysis, to surface analysis, and to cleaning verification. He has published over two dozen articles and book chapters. Follow RTB_Official for updates! Facebook: https://www.facebook.com/RTBofficial Twitter: https://twitter.com/RTB_official Instagram: http://instagram.com/rtb_official Website: http://www.reasons.org
Views: 545 Reasons to Believe
B&W Tek - Video Microscope Setup Tutorial
 
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In this tutorial, we show you how to properly connect your i-Raman Plus Portable Spectrometer to your BAC151B Video Microscope to take measurements. Follow Us Online! Facebook: https://www.facebook.com/BwTek Google Plus: https://www.google.com/+Bwtek Linkedin: https://www.linkedin.com/company/b&w-tek-inc- Twitter: https://twitter.com/bwtek Web: http://www.bwtek.com
Views: 288 B&W Tek
What Is Quantum Mechanics?
 
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Darren Williams received a PhD in chemistry from Oregon State University in 1998 and a BS in chemistry from the University of Texas at Austin in 1992. He began his academic career at West Texas A&M University (1997–2001) and continued it at Sam Houston State University (2004–present). The interim was spent in industry at BWXT Pantex in Amarillo, Texas (2001–2004). Dr. Williams has applied infrared and Raman spectroscopy to polymer-bound explosive analysis, to surface analysis, and to cleaning verification. He has published over two dozen articles and book chapters. Follow RTB_Official for updates! Facebook: https://www.facebook.com/RTBofficial Twitter: https://twitter.com/RTB_official Instagram: http://instagram.com/rtb_official Website: http://www.reasons.org
Views: 865 Reasons to Believe
Does Quantum Mechanics Evince Eastern Religions?
 
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Learn more about Dr. Darren Williams: http://www.reasons.org/vsp/darren-williams Darren Williams received a PhD in chemistry from Oregon State University in 1998 and a BS in chemistry from the University of Texas at Austin in 1992. He began his academic career at West Texas A&M University (1997–2001) and continued it at Sam Houston State University (2004–present). The interim was spent in industry at BWXT Pantex in Amarillo, Texas (2001–2004). Dr. Williams has applied infrared and Raman spectroscopy to polymer-bound explosive analysis, to surface analysis, and to cleaning verification. He has published over two dozen articles and book chapters. Follow RTB_Official for updates! Facebook: https://www.facebook.com/RTBofficial Twitter: https://twitter.com/RTB_official Instagram: http://instagram.com/rtb_official Website: http://www.reasons.org
Views: 649 Reasons to Believe
Does Quantum Mechanics Point to God's Existence?
 
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Darren Williams received a PhD in chemistry from Oregon State University in 1998 and a BS in chemistry from the University of Texas at Austin in 1992. He began his academic career at West Texas A&M University (1997–2001) and continued it at Sam Houston State University (2004–present). The interim was spent in industry at BWXT Pantex in Amarillo, Texas (2001–2004). Dr. Williams has applied infrared and Raman spectroscopy to polymer-bound explosive analysis, to surface analysis, and to cleaning verification. He has published over two dozen articles and book chapters. Follow RTB_Official for updates! Facebook: https://www.facebook.com/RTBofficial Twitter: https://twitter.com/RTB_official Instagram: http://instagram.com/rtb_official Website: http://www.reasons.org
Views: 1434 Reasons to Believe
Faster Nanopositioning Advances Microscopy & Analytical Instruments: AFM SNOM RAMAN by www.pi.ws
 
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Faster Imaging / Higher Resolution in Microscopy and Analytical Instrumentation. More: https://www.pi-usa.us/en/products/microscope-stages-bio-imaging-life-sciences/ The video explains how advanced nanopositioning technologies such as piezo direct drive stages, parallel kinematics and ultrasonic ceramic motors and can speed up and improve imaging techniques in Atomic Force Microscopy (AFM), Scanning Near-field Optical Microscopy (SNOM) and Confocal Raman Imaging. Sub-nanometer spacial resolution, fast step/settle and response times, higher linearity and improved scanning straightness / flatness of multi-axis piezo nano-positioners allow the combination of all three methods in one highly innovative nanoanalytical microscope system. More articles on imaging and microscopy: https://www.pi-usa.us/en/tech-blog/search-blog-posts-by-category/imaging-microscopy/
Views: 226 nanopositioning
Harmony between Christianity and Science | Dr. Darren Williams
 
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Learn more about Dr. Darren Williams: http://www.reasons.org/vsp/darren-williams Darren Williams received a PhD in chemistry from Oregon State University in 1998 and a BS in chemistry from the University of Texas at Austin in 1992. He began his academic career at West Texas A&M University (1997–2001) and continued it at Sam Houston State University (2004–present). The interim was spent in industry at BWXT Pantex in Amarillo, Texas (2001–2004). Dr. Williams has applied infrared and Raman spectroscopy to polymer-bound explosive analysis, to surface analysis, and to cleaning verification. He has published over two dozen articles and book chapters. Follow RTB_Official for updates! Facebook: https://www.facebook.com/RTBofficial Twitter: https://twitter.com/RTB_official Instagram: http://instagram.com/rtb_official Website: http://www.reasons.org
Views: 441 Reasons to Believe
Journal of Optics and Laser Physics
 
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Journal of Optics and Laser Physics offers a comprehensive view of all areas of pure and applied optics, both modern and classical, theoretical and experimental laser research and applications. Articles cover every aspect of modern laser physics and quantum electronics, emphasizing physical effects in various media (solid, gaseous, liquid) leading to the generation of laser radiation; peculiarities of propagation of laser radiation; problems involving impact of laser radiation on various substances and the emerging physical effects, including coherent ones; the applied use of lasers and laser spectroscopy; the processing and storage of information; and more.
Views: 23 JOLP Editor
C. V. Raman | Wikipedia audio article
 
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This is an audio version of the Wikipedia Article: C. V. Raman Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. You can find other Wikipedia audio articles too at: https://www.youtube.com/channel/UCuKfABj2eGyjH3ntPxp4YeQ You can upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts "The only true wisdom is in knowing you know nothing." - Socrates SUMMARY ======= Sir Chandrasekhara Venkata Raman (; 7 November 1888 – 21 November 1970) was an Indian physicist born in the former Madras Province in India presently the state of Tamil Nadu, who carried out ground-breaking work in the field of light scattering, which earned him the 1930 Nobel Prize for Physics. He discovered that when light traverses a transparent material, some of the deflected light changes wavelength. This phenomenon, subsequently known as Raman scattering, results from the Raman effect. In 1954, India honoured him with its highest civilian award, the Bharat Ratna.
Views: 15 wikipedia tts
IEEE AP/MTT/EMC/ED Turkey Seminars - Prof. Ekmel Özbay, January 5, 2018
 
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Speaker: Prof. Ekmel Özbay, Nanotechnology Research Center, Bilkent University Topic: “Metamaterial based nanobiosensors and nanophotodetectors” Location: Middle East Technical University, Ankara, Turkey Abstract: In this talk, we will present how metamaterials can be used for nanobiosensors and nanophotodetector applications. Our results show that a plasmonic structure can be successfully applied to bio-sensing applications and extended to the detection of specific bacteria species. A highly tunable design for obtaining double resonance substrates to be used in Surface Enhanced Raman Spectroscopy will also be presented. Surface Enhanced Raman Scattering experiments are conducted to compare the enhancements obtained from double resonance substrates to those obtained from single resonance gold truncated nano-cones. We will present a UV plasmonic antenna integrated metal semiconductor metal (MSM) photodetector based on GaN. We also report the design, fabrication, and measurement of a device comprising a split ring resonator array on epitaxial graphene. We obtained resonance broadening and tuning of split ring resonators by utilizing an epitaxial graphene transistor with transparent top-gate. Metallic split ring resonator (SRR) structures are used in nanophotonics applications in order to localize and enhance incident electromagnetic field. Electrically controllable sheet carrier concentration of graphene provides a platform where the resonance of the SRRs fabricated on graphene can be tuned. The reflectivity spectra of SRR arrays shift by applying gate voltage, which modulates the sheet carrier concentration, and thereby the optical conductivity of monolayer graphene. We experimentally and numerically demonstrated that the tuning range can be increased by tailoring the effective mode area of the SRR and enhancing the interaction with graphene. Bio: Prof. Dr. Ekmel Ozbay received M.S. and Ph. D. degrees from Stanford University in electrical engineering, in 1989 and 1992. He worked as a postdoctoral research associate in Stanford University and he worked as a scientist in Iowa State University. He joined Bilkent University (Ankara, Turkey) in 1995, where he is currently a full professor in Physics Department and EEE Department. In 2003, he founded Bilkent University Nanotechnology Research Center (NANOTAM) where he leads a research group working on nanophotonics, nanometamaterials, nanoelectronics, GaN/AlGaN MOCVD growth, and GaN based devices. He is the 1997 recipient of the Adolph Lomb Medal of OSA and 2005 European Union Descartes Science award. He worked as an editor for Nature Scientific Reports, Optics Letters, PNFA, and IEEE JQE journals. He has published 430+ articles in SCI journals. His papers have received 13500+ SCI citations with an SCI h-index of 55. He has given 145+ invited talks in international conferences. He recently became the CEO of a spin-off company: AB-MicroNano Inc.
Views: 878 METU EEE
How to cite in LaTeX | Inserting Bibliography in the document | Share Latex | Learn LaTeX 10
 
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This video presents how to cite articles, journal papers or books using LaTeX in a document. One also learns to insert bibliography in the document. The video explains the concepts with hands on code. Stay calm and keep learning. Subscribe to the channel for much more interesting videos. -------------------------------------------------------------------------------------------- Link to LaTeX website : https://www.latex-project.org/about/ Link to ShareLaTeX : https://www.sharelatex.com?r=deeab91f&rm=d&rs=b Please watch the LaTeX video #1 : https://youtu.be/RcvSMu9uRfA Please watch the LaTeX video #2 : https://youtu.be/5zbxVkXqEBE Please watch the LaTeX video #3: https://youtu.be/uF3yrcqrSYg Please watch the LaTeX video #4: https://youtu.be/iybIw8qHKS8 Please watch the LaTeX video #5: https://youtu.be/xX5S_05wypg Please watch the LaTeX video #6: https://youtu.be/qdCtXe3hxFA Please watch the LaTeX video #7: https://youtu.be/Mp7aAlFJg3Q Please watch the LaTeX video #8: https://youtu.be/ShJZ__9YuXE Please watch the LaTeX video #9: https://youtu.be/c5X7Xj1iYak Please watch the LaTeX video #10: https://youtu.be/9HI0ZSUKJl4 -------------------------------------------------------------------------------------------- Please watch the video: https://youtu.be/sVc-XIysw0c on Double Beam Spectrometer Please watch the video: https://youtu.be/MKFjGIrRKt4 on Basics of UV-Vis spectroscopy in Analytical Instrumentation Please watch the video: https://youtu.be/pxDbEkspXs0 on Filters and Monochromators, Gratings used in Analytical Instrumentation Please watch the video: https://youtu.be/YI17AmrR5Iw on Detectors used in Analytical Instrumentation Please watch the video: https://youtu.be/J8Bqyqjlqy0 on Single Beam Photometer used in Analytical Instrumentation ------------------------------------------------------------------------------------------- Please watch the playlist on Digital Electronics: https://www.youtube.com/playlist?list=PLsaRQCHmdZTBd8xnz_XqhHYdFGlnDapC4 Please watch the playlist on Analytical Instrumentation: https://www.youtube.com/playlist?list=PLsaRQCHmdZTAuxG5X1G9W7zl_p3uwEmY0 ------------------------------------------------------------------------------------------- Follow us on: ---------------------------- Website http://practicalninjas.com/ Facebook https://www.facebook.com/practicalninjas/ Twitter https://twitter.com/practicalninjas Instagram https://www.instagram.com/practicalninjas/ Credits : ---------------------------- https://soundcloud.com/slow-star/robotic-after-all -~-~~-~~~-~~-~- Please watch: "What makes our phones smart? - SOC | System on Chip | Brain of a smartphone"
Views: 1887 Practical Ninjas
Charge-transfer complex | Wikipedia audio article
 
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This is an audio version of the Wikipedia Article: https://en.wikipedia.org/wiki/Charge-transfer_complex 00:02:48 1 Donor-acceptor association equilibrium 00:04:29 2 Charge-transfer transition energy 00:06:18 3 Identification of CT bands 00:07:51 4 Inorganic charge-transfer complexes 00:08:21 4.1 Ligand-to-metal charge transfer 00:10:10 4.1.1 Trend of LMCT energies 00:11:07 4.2 Metal-to-ligand charge transfer 00:12:31 4.2.1 Photoreactivity of MLCT excited states 00:13:56 4.3 Color of charge-transfer complexes 00:15:39 5 Other examples 00:17:09 6 Electrical conductivity 00:19:16 7 See also Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. Listen on Google Assistant through Extra Audio: https://assistant.google.com/services/invoke/uid/0000001a130b3f91 Other Wikipedia audio articles at: https://www.youtube.com/results?search_query=wikipedia+tts Upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts Speaking Rate: 0.8691595308238631 Voice name: en-GB-Wavenet-D "I cannot teach anybody anything, I can only make them think." - Socrates SUMMARY ======= A charge-transfer complex (CT complex) or electron-donor-acceptor complex is an association of two or more molecules, or of different parts of one large molecule, in which a fraction of electronic charge is transferred between the molecular entities. The resulting electrostatic attraction provides a stabilizing force for the molecular complex. The source molecule from which the charge is transferred is called the electron donor and the receiving species is called the electron acceptor. The nature of the attraction in a charge-transfer complex is not a stable chemical bond, and is thus much weaker than covalent forces. Many such complexes can undergo an electronic transition into an excited electronic state. The excitation energy of this transition occurs very frequently in the visible region of the electromagnetic spectrum, which produces the characteristic intense color for these complexes. These optical absorption bands are often referred to as charge-transfer bands (CT bands). Optical spectroscopy is a powerful technique to characterize charge-transfer bands. Charge-transfer complexes exist in many types of molecules, inorganic as well as organic, and in solids, liquids, and solutions. A well-known example is the complex formed by iodine when combined with starch, which exhibits an intense blue charge-transfer band. In inorganic chemistry, most charge-transfer complexes involve electron transfer between metal atoms and ligands. The charge-transfer bands of transition metal complexes result from shift of charge density between molecular orbitals (MO) that are predominantly metal in character and those that are predominantly ligand in character. If the transfer occurs from the MO with ligand-like character to the metal-like one, the complex is called a ligand-to-metal charge-transfer (LMCT) complex. If the electronic charge shifts from the MO with metal-like character to the ligand-like one, the complex is called a metal-to-ligand charge-transfer (MLCT) complex. Thus, a MLCT results in oxidation of the metal center, whereas a LMCT results in the reduction of the metal center. Resonance Raman spectroscopy is also a powerful technique to assign and characterize charge-transfer bands in these complexes.
Views: 15 wikipedia tts
Increasing Speed of UHPLC MS Analysis  Using a Thermo Scientific Single stage Orbitrap Mass Spec
 
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http://www.thermoscientific.com/: Increasing Speed of UHPLC MS Analysis Using a Thermo Scientific Single stage Orbitrap Mass Spec Speaker: Olaf Scheibner - Product Specialist Olaf Scheibner presents his scientific poster about increasing the speed of UHPLC-MS methods using a Thermo Scientific Orbitrap mass spectrometer with analysis of complex samples. The results were a significant increase of data quality and improved processing time were achieved due to the reliability and selectivity of the mass spectrometer. Thermo Scientific Exactive Plus Mass spectrometer is the ultimate screening machine for confident identification and quantification of compounds in complex samples. This benchtop LC-MS system delivers high resolution, accurate mass data and fast scanning capabilities to increase both confidence and throughput. The Exactive Plus Mass Spectrometer is an easy-to-use benchtop system combining premium performance with a simple, intuitive interface in an LC-MS system that is smaller, faster and affordable for virtually any lab. Download the technical poster notes: http://www.dionex.com/en-us/webdocs/113725-ASMS12_T590_OScheibner_PN63599_Exactive-Plus_Food.pdf For latest chromatography news, articles, & applications, read our blog at http://chromblog.thermoscientific.com/blog/, following us on Twitter at https://twitter.com/ChromSolutions, and Like us on Facebook at https://www.facebook.com/ChromatographySolutions.
4100 ExoScan FTIR Demo
 
17:01
The Agilent 4100 ExoScan is a one module, 2.95 kg (6.5 lb) handheld system that is as versatile as it is rugged. With interchangeable sampling accessories, all of which can be changed in seconds without realignment, it is ideal for the analysis of surfaces, coatings, and films, as well as the analysis of bulk materials including powders and granules. More information at http://www.agilent.com/en-us/products/ftir/ftir-compact-portable-systems/4100-exoscan-series-ftir-(handheld)
Views: 1221 Agilent Technologies
Multidisciplinary Research Experiences Integrated with Industry-Field Experiences (IMCIC 2015)
 
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"Multidisciplinary Research Experiences Integrated with Industry-Field Experiences" (General Joint Session at IMCIC 2015) Dr. Suzanne Lunsford Wright State University, USA Abstract: Multi-disciplinary inquiry-based science activities /labs for our undergraduates and high school students are designed around noteworthy issues, tasks and questions and real-world problems to solve related to industry research. These real-world problems in inquiry-based labs require our students to utilize more than one discipline to solve their questions/problems. Our pre- and post-test assessments have shown that the multi-disciplinary approaches increase students’ capacity to make connections in STEM fields as needed to meet the 21st century skills for today. There are several multi-disciplinary modules that will be shared during the plenary talk that will show and discuss the problem –based activities with integration in the fields of study which require content use in all of the following areas of physics, chemistry, biology, geology, engineering and technology. Real-world problems related to industrial research will be discussed in my inquiry-based /problem solving labs are topics such as “the crisis of water contamination and what are the type of electrode sensors to detect heavy metals?”, “how to prevent corrosion” and “how to detect neurotransmitters –electrochemically and how to determine if the sensor is working”. These are the typical real-world issues that our undergraduate students were required to problem –solve while integration of technology with instrumentation such as Cyclic Voltammetry, Square Wave Anodic Stripping Voltammetry, Fourier Transform Infrared Spectroscopy, Raman Spectroscopy, Scanning Electron Microscopy, and X-Ray Fluorescence. The exploration of how industry resolves these research problems are integrated into our curriculum by field site visits to research labs such as Bowser-Morner and CEMEX. These industrial research visits allow our students to run novel instrumentation and learn real-world applications to solve their research problems with the 21st century technology.
Views: 100 IIISchannel
Study of Shroud Of Turin Says the Burial Cloth Is Authentic
 
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In 2013, Professor Giulio Fanti and journalist Saverio Gaeta published a book with the results of some chemical and mechanical tests which confirm that the Shroud of Turin dates back to the 1st century. From an article by Andrea Tornielli of Rome regarding the 2013 tests: "The research includes three new tests, two chemical ones and one mechanical one. The first two were carried out with an FT-IR system, one using infra-red light and the other using Raman spectroscopy. The third was a multi-parametric mechanical test based on five different mechanical parameters linked to the voltage of the wire. The machine used to examine the Shroud's fibres and test traction, allowed researchers to examine tiny fibres alongside about twenty samples of cloth dated between 3000 BC and 2000 AD. "Final results show that the Shroud fibres examined produced the following dates, all of which are 95% certain and centuries away from the medieval dating obtained with Carbon-14 testing in 1988: the dates given to the Shroud after FT-IR testing, is 300 BC ±400, 200 BC ±500 after Raman testing and 400 AD ±400 after multi-parametric mechanical testing. The average of all three dates is 33 BC ±250 years. "The tests were carried out using tiny fibres of material extracted from the Shroud by micro-analyst Giovanni Riggi di Numana who passed away in 2008 but had participated in the1988 research project and gave the material to Fanti through the cultural institute Fondazione 3M." (End of quote) In 2011, a scientific study of the Shroud of Turin said the shroud was "created by flash of supernatural light: It couldn't be a medieval forgery." The article discussed in the video can be found here: http://www.dailymail.co.uk/sciencetech/article-2076443/Turin-Shroud-created-flash-supernatural-light.html?ITO=1490. I also liked the article here: http://www.longislandpress.com/2011/12/22/shroud-of-turin-study-says-shroud-real/ For more about the problems with the Carbon 14 dating of the Shroud, please see: https://www.youtube.com/watch?v=QFxijCLPr_4 Muslim Arif Khan at Revelaion and Rationality blog brought up the following about the Shroud of Turin: "Why is it so hard to explain the image? There are specific key characteristics of the image that any theory must account for: 1. The image is a photographic negative 2. There is a 3D property to the image -- the further away a part of the body was from the cloth the fainter that part appears 3. The image is visible only in the very upper fibres of the cloth -- it does not go all the way through to the back of the cloth 4. When standing close to the cloth the image is not visible -- it is only visible when standing a few metres away from the cloth 5. The blood flows on the cloth have been shown to be 100% anatomically correct based on modern physiology 6. There are no pigments or dyes used on the cloth 7. The blood is human and contains extractable DNA samples It is very hard to put together a theory that can satisfy all of the above items." For Christians, our hope, joy, and peace is in the resurrection, and the Shroud of Turin is physical evidence of that event. So, if you're struggling to find your peace and joy, think on the Resurrection of Jesus and all that it means for you.
Views: 2635 ProphecyPodRadio
Sales transition statements can be used to help close more sales - Scott Sylvan Bell
 
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Sales transition statements are something salespeople struggle with when they have built too much rapport. When it comes to talking about the money salespeople freeze. You can create your own sales sabotage by not getting to the end of your sales presentation. Learning how to close more sales and how to sell more means you must get out of you comfort zone. There are multiple ways to bring up sales transition statements. Some of the statements you learn in sales training while some are modified to meet your personality. Some salespeople need a sales statement example and then they modify accordingly. The transition from the sales presentation to the closing process is part of sales basics mastery but is ti skipped every single day from salespeople. Getting to the closing process in sales means you have sales strategies that you use. Not being able to close sales is a common problem salespeople face. Closing sales is one of the sales skills most salespeople never learn. This video was filmed in Las Vegas Nevada November 5th, 2017 Connect on twitter: @scottsbell Read the articles on sales, persuasion and influence: http://www.scottbellconsultant.com Learn about body language and non verbal communication: http://www.readingbodylanguagenow.com Watch the body language videos on the YouTube channel: http://www.youtube.com/user/scottsylvanbell You can find the How to sell show podcast at: http://www.howtosell.live sales expert Scott Sylvan Bell
Views: 158 scottbellconsultant
High Performance Thermo Scientific Q Exactive - Julie Horner
 
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For more information: http://chrom.ms/AH0wzNR Speaker: Julie Horner See the new Thermo Scientific Q Exactive that can conduct three experiments at once -- identification, quantitation and confirmation -- in a quadrupole-Orbitrap mass spectrometer that is fully compatible with UHPLC separations. Learn how you can identify, quantify and confirm more trace-level metabolites, contaminants, peptides and proteins in complex mixtures in one analytical run. This innovation offers an affordable, more sensitive alternative to Q-Tof and is ideal for applications such as food safety and forensic toxicology that use general extraction methodologies that result in complex sample matrices for subsequent analysis by LC-MS. With the Q Exactive, laboratories can identify more proteins, more metabolites and more contaminants with greater confidence. For more information: http://www.thermoscientific.com/qexactive For latest chromatography news, articles, & applications, read our blog at http://chromblog.thermoscientific.com/blog/, following us on Twitter at https://twitter.com/ChromSolutions, and Like us on Facebook at https://www.facebook.com/ChromatographySolutions.
Robin Clark (chemist) | Wikipedia audio article
 
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This is an audio version of the Wikipedia Article: https://en.wikipedia.org/wiki/Robin_Clark_(chemist) 00:00:26 1 Early life and education 00:01:35 2 Career 00:02:20 3 Artwork authentication 00:02:56 4 Awards and honours Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. Listen on Google Assistant through Extra Audio: https://assistant.google.com/services/invoke/uid/0000001a130b3f91 Other Wikipedia audio articles at: https://www.youtube.com/results?search_query=wikipedia+tts Upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts Speaking Rate: 0.751063573541061 Voice name: en-US-Wavenet-F "I cannot teach anybody anything, I can only make them think." - Socrates SUMMARY ======= Robin Jon Hawes Clark (16 February 1935 – 6 December 2018) was a New Zealand-born chemist initially noted for research of Transition metal and mixed-valence complexes, and later for the use of Raman spectroscopy in determining the chemical composition of pigments used in artworks.
Views: 0 wikipedia tts
Charge transfer complex | Wikipedia audio article
 
21:16
This is an audio version of the Wikipedia Article: https://en.wikipedia.org/wiki/Charge-transfer_complex 00:03:02 1 Donor-acceptor association equilibrium 00:04:53 2 Charge-transfer transition energy 00:06:50 3 Identification of CT bands 00:08:30 4 Inorganic charge-transfer complexes 00:09:02 4.1 Ligand-to-metal charge transfer 00:11:00 4.1.1 Trend of LMCT energies 00:12:04 4.2 Metal-to-ligand charge transfer 00:13:35 4.2.1 Photoreactivity of MLCT excited states 00:15:07 4.3 Color of charge-transfer complexes 00:17:01 5 Other examples 00:18:38 6 Electrical conductivity 00:20:59 7 See also Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. Listen on Google Assistant through Extra Audio: https://assistant.google.com/services/invoke/uid/0000001a130b3f91 Other Wikipedia audio articles at: https://www.youtube.com/results?search_query=wikipedia+tts Upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts Speaking Rate: 0.784864384570825 Voice name: en-US-Wavenet-C "I cannot teach anybody anything, I can only make them think." - Socrates SUMMARY ======= A charge-transfer complex (CT complex) or electron-donor-acceptor complex is an association of two or more molecules, or of different parts of one large molecule, in which a fraction of electronic charge is transferred between the molecular entities. The resulting electrostatic attraction provides a stabilizing force for the molecular complex. The source molecule from which the charge is transferred is called the electron donor and the receiving species is called the electron acceptor. The nature of the attraction in a charge-transfer complex is not a stable chemical bond, and is thus much weaker than covalent forces. Many such complexes can undergo an electronic transition into an excited electronic state. The excitation energy of this transition occurs very frequently in the visible region of the electromagnetic spectrum, which produces the characteristic intense color for these complexes. These optical absorption bands are often referred to as charge-transfer bands (CT bands). Optical spectroscopy is a powerful technique to characterize charge-transfer bands. Charge-transfer complexes exist in many types of molecules, inorganic as well as organic, and in solids, liquids, and solutions. A well-known example is the complex formed by iodine when combined with starch, which exhibits an intense blue charge-transfer band. In inorganic chemistry, most charge-transfer complexes involve electron transfer between metal atoms and ligands. The charge-transfer bands of transition metal complexes result from shift of charge density between molecular orbitals (MO) that are predominantly metal in character and those that are predominantly ligand in character. If the transfer occurs from the MO with ligand-like character to the metal-like one, the complex is called a ligand-to-metal charge-transfer (LMCT) complex. If the electronic charge shifts from the MO with metal-like character to the ligand-like one, the complex is called a metal-to-ligand charge-transfer (MLCT) complex. Thus, a MLCT results in oxidation of the metal center, whereas a LMCT results in the reduction of the metal center. Resonance Raman spectroscopy is also a powerful technique to assign and characterize charge-transfer bands in these complexes.
Views: 9 wikipedia tts
SDBS Online Tutorial
 
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Camtasia tutorial on using SDBS.
Views: 1041 RensselaerLibraries
graphene/BaMnO_3 interface: Spin Density
 
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New hybrid materials for next generation spin transistors by first-principle computer design. Spin density Graphene-BaMnO_3 interface computed with the SIESTA implementation of DFT. Color code: red = spin up, blue = spin down Z. Zanolli, Graphene-multiferroic interfaces for spintronics applications, Scientific Reports, 6, 31346 (2016) https://www.nature.com/articles/srep31346 Calculations and scientific analysis: Zeila Zanolli, Forschungszentrums Jülich and RWTH Aachen University Animation: Herwig Zilken, IAS and JSC, Forschungszentrums Jülich Video editing: Renate Koschmieder, IAS and JSC, Forschungszentrums Jülich Visualization with VESTA http://jp-minerals.org/vesta/en/
DIAMONDENO, O DIAMANTE BRASILEIRO DE DUAS DIMENSÕES | CCQ 43
 
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O brasileiro Luiz Gustavo, doutorando no MIT, conta seu trabalho com espectroscopia Raman e apresenta um novo material com possíveis implicações tecnológicas, o Diamondeno! • Seja um apoiador dos nossos projetos! https://www.padrim.com.br/ossuperlentos https://apoia.se/canalcuraquantica • Pesquisa do Luiz: https://www.nature.com/articles/s41467-017-00149-8 Lucas Mitre e Vinícius Marangon são graduandos em Física na Universidade Federal de Minas Gerais. • Curta no Facebook: https://www.facebook.com/canalcuraqua... • Instagram: https://www.instagram.com/canalcuraqu... • Twitter do Vinícius: https://twitter.com/vinimorangao • Twitter do Lucas: https://twitter.com/LcMitre Música da vinheta por John Sapien: https://soundcloud.com/john-sapien Big Bird's Date Night (Full) de Twin Musicom está licenciada sob uma licença Creative Commons Attribution (https://creativecommons.org/licenses/...) Artista: http://www.twinmusicom.org/
What Is The Graphite?
 
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Graphite a mineral with extreme properties and many useswhat are the uses of graphite? Differences between graphene graphite azonano. Graphite is the most detailed description, properties, and locality information guide about mineral graphite diamonds are only two naturally formed polymers of carbon. Encyclopedia articles graphite (carbon) amethyst galleriesthe common name pencil lead is due to an gcse chemistry what the structure of graphite? What are diamond and gemselectgraphite (c) classifications, properties applications graphitegraphene & how do they compare? &#8211what formula for carbon Quoradefinition by merriam webster. How can graphite and diamond be so different if they are both facts, information, pictures. Graphite has a layered structure that consists of rings six carbon atoms arranged in very basic terms graphene could be described as single, one atom thick layer the commonly found mineral graphite; is essentially made up c (repeating unit). The common name pencil lead is due to an the structure and properties of graphite. Based on this fact, one would think they be similar in many ways graphite is of the two common but distinctively different forms or allotropes carbon, other being diamond. Graphite holds the distinction of being graphite definition, a very common mineral, soft native carbon, occurring in black to dark gray foliated masses, with metallic luster and greasy feel used for 10 sep 2002 unusual properties are described as different forms such amorphous, flake, crystalline synthetic grades graphite, also called plumbago or lead, mineral consisting carbon. Graphite archaically referred to as plumbago, is a crystalline allotrope of carbon, semimetal, native element mineral, and form coal. Graphite 20 may 2002 miriam rossi, a professor of chemistry at vassar college, provides the following explanation both diamond and graphite are made entirely out get information, facts, pictures about encyclopedia. Rather, the core is made up of a non toxic mineral called graphite. Carbon means graphite not diamond. The structure of graphite 24 jul 2008 diamond and are both crystalline forms the element carbon. Graphite is also a component of many lubricants, for example 24 apr 2017 graphite has wide variety almost contradictory uses. Graphite is essentially a two dimensional, planar crystal structure whereas graphite has the same composition as diamond, hardest mineral known, but its unique makes it extremely light, soft, inert and highly resistant to used inside pencils. An allotrope of carbon and one the world's softest minerals, its uses range from 7 may 2014 graphene is simply atomic layer graphite a sp2 bonded atoms arranged in hexagonal or honeycomb lattice. Graphite the mineral graphite information and pictures minerals northern. Make research projects and school reports about graphite easy with credible articles is a polymorph of the element carbonthe two share same chemistry, carbon, but have very different structures here's my
Views: 71 Ask Question II
Germanium etalon for chemical warfare agent detection - sales@dmphotonics.com
 
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Germanium etalon for chemical warfare agent detection - [email protected] Germanium etalon length 3", diam 1" - [email protected] Germanium etalon length 3", diam 1.25" - [email protected] The World Health Organization recommends countries to create a public health system that can respond to the deliberate release of chemical warfare agents (CWAs). Procedures for preparedness, response, decontamination protocols and medical countermeasures against CWA attacks are described. Known CWAs, including their properties and pharmacological consequences upon exposure, are tabulated and discussed. Requirements imposed on detection systems by various applications and environmental needs are presented in order to assess the devices for detection and identification of specific CWAs. The review surveys current and near-term detection technologies and equipments, as well as devices that are currently available to the military and civilian first responders. Brief technical discussions of several detection technologies are presented, with emphasis placed in the principles of detection. Finally, enabling technologies that form the basis for advanced sensing systems and devices are described. (PDF) Chemical warfare agent detection: A review of current trends and future perspective. Available from: https://www.researchgate.net/publication/234019460_Chemical_warfare_agent_detection_A_review_of_current_trends_and_future_perspective Featured research: Review Article C.-Y. Chung, J. Boik, and E. O. Potma*, Biomolecular imaging with coherent nonlinear vibrational microscopy, Annu. Rev. Phys. Chem. 64, 77 (2013). Research Articles C.-Y. Chung, E. P. Chew, B.-M. Cheng*, M. Bahou, and Y.-P. Lee*, Temperature dependence of absorption cross section of H2O, HOD, and D2O in the spectral region 140–193nm, Nucl. Instr. Meth. Phys. Res. A 467, 1572 (2001). C.-Y. Chung, J. F. Ogilvie, and Y.-P. Lee*, Detection of vibration-rotational band 5-0 of 12C16O X 1+ with cavity ringdown absorption near 0.96 m, J. Phys. Chem. A 109, 7854 (2005) C.-Y. Chung, C.-W. Cheng, Y.-P. Lee*, H.-Y. Liao, E. N. Sharp, P. Rupper, and T. A. Miller*, Rovibronic bands of the  transition of CH3OO and CD3OO detected with cavity ringdown absorption near 1.21.4 µm, J. Chem. Phys. 127, 044311 (2007). C.-Y. Chung, Y.-Y. Lin, K.-Y. Wu, W.-Y. Tai, S.-W. Chu, Y.-C. Lee, Y. Hwu, and Y.-Y. Lee*, Coherent anti-Stokes Raman scattering microscopy using a single-pass picosecond supercontinuum-seeded optical parametric amplifier, Opt. Express 18, 6116 (2010). Selected article at the virtual Journal for Biomedical Optics, 5, Iss 7, Apr. 26 (2010). C.-Y. Chung, J. Hsu, S. Mukamel, and E. O. Potma*, Controlling stimulated coherent spectroscopy and microscopy by a position-dependent phase, Phys. Rev. A 87, 033833 (2013). A. Y. T. Lee, Y. L. Yung, B.-M. Cheng*, M. Bahou, C.-Y. Chung, and Y.-P. Lee*, Enhancement of deuterated ethane on Jupiter, Astrophys. J. 551, L93 (2001). M. Bahou, C.-Y. Chung, Y.-P. Lee*, B.-M. Cheng*, Y. L. Yung, and L. C. Lee, Absorption cross sections of HCl and DCl from 135–232 nm: Implications for photodissociation on Venus, Astrophys. J. 559, L179 (2001). C.-Y. Wu. C.-Y. Chung, Y.-C. Lee, and Y.-P. Lee*, Three-center versus four-center elimination of haloethene: Internal energies of HCl and HF on photolysis of CF2CHCl at 193 nm determined with time-resolved Fourier-transform spectroscopy, J. Chem. Phys. 117, 9785 (2002). B.-M. Cheng*, C.-Y. Chung, M. Bahou, Y.-P. Lee*, and L. C. Lee, Quantitative spectral analysis of HCl and DCl in 120–220 nm: Effects of singlet–triplet mixing, J. Chem. Phys. 117, 4293 (2002). B.-M. Cheng*, C.-Y. Chung, M. Bahou, Y.-P. Lee*, L. C. Lee, R. van Harrevelt, and M. C. van Hemert, Quantitative spectroscopic and theoretical study of the optical absorption spectra of H2O, HOD, and D2O in the 125–145 nm region, J. Chem. Phys. 120, 224 (2004).
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WE FOUND THE NEPHILIM! | L.A. Marzulli on Sid Roth's It's Supernatural!
 
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▶▶SUBSCRIBE: http://bit.ly/SidRothYouTube On this episode of Sid Roth's It's Supernatural, L.A. Marzulli shows evidence of the Nephilim. Who were the Nephilim? L.A. Marzulli has long searched for physical evidence of the Nephilim, the giants of the Bible. A significant cover-up over the years moved these hybrid humans to the dustbins of history. But now evidence has been found in Peru and the U.S.A.! CLICK HERE TO START YOUR HEALING - http://bit.ly/1Ml2jVc SUBSCRIBE - http://bit.ly/10jKQtv DONATE - http://bit.ly/1cDCinQ Join Our Mentoring Club! - http://bit.ly/1x0uMYx FREE Newsletter! - http://bit.ly/1x0uvoi Sid Roth's It's Supernatural 2013
ChemDraw Structures
 
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Structures PDF http://www.mediafire.com/file/8enab877xo1ffvb/ChemDraw_Structures.pdf
Robert L. Byer | Wikipedia audio article
 
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This is an audio version of the Wikipedia Article: Robert L. Byer Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. You can find other Wikipedia audio articles too at: https://www.youtube.com/channel/UCuKfABj2eGyjH3ntPxp4YeQ You can upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts "The only true wisdom is in knowing you know nothing." - Socrates SUMMARY ======= Robert Louis Byer is a physicist. He was president of the Optical Society of America in 1994 and of the American Physical Society in 2012.He currently is the William R. Kenan, Jr. Professor of Applied Physics at Stanford University. He has conducted research and taught classes in lasers and nonlinear optics at Stanford University since 1969. He has made numerous contributions to laser science and technology including the demonstration of the first tunable visible parametric oscillator, the development of the Q-switched unstable resonator Nd:YAG laser, remote sensing using tunable infrared sources and precision spectroscopy using Coherent Anti Stokes Raman Scattering (CARS). Current research includes the development of nonlinear optical materials and laser diode pumped solid state laser sources for applications to gravitational wave detection and to laser particle acceleration.He served as Chair of the Applied Physics Department from 1980 to 1983 and 1999 to 2002. He served as Associate Dean of Humanities and Sciences from 1984 to 1986 and served as Vice Provost and Dean of Research at Stanford University from 1987 through 1992. He served as the Director of Edward L. Ginzton Laboratory from 2006-2008 after serving as Director of Hansen Experimental Physics Laboratory from 1997 through 2006. Professor Byer played a major role in the success of three laser technology companies. Quanta-Ray commercialized a high-energy pulsed laser invented in the Byer lab which is still widely used in scientific research. Quanta-Ray was acquired by Spectra-Physics in 1981 and is now a part of Newport Corporation. Byer was a founder of Lightwave Electronics, a pioneering designer and manufacturer of diode-pumped solid-state lasers, which was acquired by JDS Uniphase in 2005 and is now a part of Lumentum. He played a similar role at Mobius Photonics, which produced pulsed fiber lasers, and was acquired by IPG Photonics in 2013.Professor Byer led Stanford University's contributions to the Laser Interferometer Gravitational Wave Observatory, which made the first-ever detection of a disturbance in space-time caused by a pair of merging black holes on September 14, 2015. Professor Byer is a Fellow of The Optical Society, the Institute of Electrical and Electronics Engineers (IEEE), the American Physical Society and the American Association for the Advancement of Science and the Laser Institute of America. In 1985 Professor Byer served as president of the IEEE Lasers and Electro-optics Society. He was elected President of the Optical Society of America and served in 1994. He is a founding member of the California Council on Science and Technology and served as chair from 1995 - 1999. He was a member of the Air Force Science Advisory Board from 2002–2006 and has been a member of the National Ignition Facility Advisory Committee since 2000. In 1996, Professor Byer received the Quantum Electronics Award from the Lasers and Electro-optics Society of the IEEE. In 1998 he received the R. W. Wood prize of the Optical Society of America and the A. L. Schawlow Award from the Laser Institute of America. In 2000 he was the recipient of the IEEE Third Millennium Medal. In 2008 he received the IEEE Photonics Award. In 2009, he received the Frederic Ives Medal of the Optical Society of America. Professor Byer has published more than 500 scientific papers and holds 50 patents in the fields of lasers and nonlinear optics. Professor Byer was elected to the National Academy of Engineering in 1987 and to the National Academy of Science in 2000.
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Virtual state (physics) | Wikipedia audio article
 
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This is an audio version of the Wikipedia Article: https://en.wikipedia.org/wiki/Virtual_state 00:01:00 See also Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. Listen on Google Assistant through Extra Audio: https://assistant.google.com/services/invoke/uid/0000001a130b3f91 Other Wikipedia audio articles at: https://www.youtube.com/results?search_query=wikipedia+tts Upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts Speaking Rate: 0.9053870559236332 Voice name: en-AU-Wavenet-D "I cannot teach anybody anything, I can only make them think." - Socrates SUMMARY ======= In quantum physics, a virtual state is a very short-lived, unobservable quantum state.In many quantum processes a virtual state is an intermediate state, sometimes described as "imaginary" in a multi-step process that mediates otherwise forbidden transitions. Since virtual states are not eigenfunctions of anything, normal parameters such as occupation, energy and lifetime need to be qualified. No measurement of a system will show one to be occupied, but they still have lifetimes derived from uncertainty relations. While each virtual state has an associated energy, no direct measurement of its energy is possible but various approaches have been used to make some measurements (for example see and related work on virtual state spectroscopy) or extract other parameters using measurement techniques that depend upon the virtual state's lifetime. The concept is quite general and can be used to predict and describe experimental results in many areas including Raman spectroscopy, non-linear optics generally, various types of photochemistry, and/or nuclear processes.
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Chemical ionization | Wikipedia audio article
 
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This is an audio version of the Wikipedia Article: https://en.wikipedia.org/wiki/Chemical_ionization 00:01:01 1 Principles of operation 00:02:14 2 Instrumentation 00:03:02 3 Mechanism 00:04:07 3.1 Primary ion formation 00:04:43 3.2 Secondary reagent ions 00:05:52 3.3 Product ion formation 00:11:29 4 Advantages and limitations 00:12:26 5 Applications 00:13:27 6 Variants 00:13:36 6.1 Negative chemical ionization 00:15:55 6.2 Charge-exchange chemical ionization 00:17:28 6.3 Atmospheric-pressure chemical ionization 00:18:47 7 See also Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago. Learning by listening is a great way to: - increases imagination and understanding - improves your listening skills - improves your own spoken accent - learn while on the move - reduce eye strain Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone. Listen on Google Assistant through Extra Audio: https://assistant.google.com/services/invoke/uid/0000001a130b3f91 Other Wikipedia audio articles at: https://www.youtube.com/results?search_query=wikipedia+tts Upload your own Wikipedia articles through: https://github.com/nodef/wikipedia-tts Speaking Rate: 0.9422736729232521 Voice name: en-US-Wavenet-C "I cannot teach anybody anything, I can only make them think." - Socrates SUMMARY ======= Chemical ionization (CI) is a soft ionization technique used in mass spectrometry. This was first introduced by Burnaby Munson and Frank H. Field in 1966. This technique is a branch of gaseous ion-molecule chemistry. Reagent gas molecules are ionized by electron ionization, which subsequently react with analyte molecules in the gas phase in order to achieve ionization. Negative chemical ionization (NCI), charge-exchange chemical ionization and atmospheric-pressure chemical ionization (APCI) are some of the common variations of this technique. CI has several important applications in identification, structure elucidation and quantitation of organic compounds. Beside the applications in analytical chemistry, the usefulness in chemical ionization extends toward biochemical, biological and medicinal fields as well.
Views: 12 wikipedia tts