Bibliography on Flame Spectroscopy Analytical Applications 1800-1966
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A Customized Stand-Alone Photometric Raman Sensor Applicable in Explosive Atmospheres: a Proof-Of-Concept Study
J. Sens. Sens. Syst., 7, 543–549, 2018 https://doi.org/10.5194/jsss-7-543-2018 © Author(s) 2018. This work is distributed under the Creative Commons Attribution 4.0 License. A customized stand-alone photometric Raman sensor applicable in explosive atmospheres: a proof-of-concept study Marcel Nachtmann1, Shaun Paul Keck1, Frank Braun1, Hanns Simon Eckhardt2, Christoph Mattolat2, Norbert Gretz3, Stephan Scholl4, and Matthias Rädle1 1Institute for Process Control and Innovative Energy Conversion, Mannheim University of Applied Sciences, Mannheim, 68163, Germany 2tec5 AG, Oberursel/Ts, 61440, Germany 3Medical Research Center, Medical Faculty Mannheim, Heidelberg University, Mannheim, 68167, Germany 4Institute for Chemical and Thermal Process Engineering, Technical University Braunschweig, Braunschweig, 38106, Germany Correspondence: Matthias Rädle ([email protected]) Received: 29 March 2018 – Revised: 12 September 2018 – Accepted: 14 September 2018 – Published: 12 October 2018 Abstract. This paper presents an explosion-proof two-channel Raman photometer designed for chemical pro- cess monitoring in hazardous explosive atmospheres. Due to its design, alignment of components is simplified and economic in comparison to spectrometer systems. Raman spectrometers have the potential of becoming an increasingly important tool in process analysis technologies as part of molecular-specific concentration monitor- ing. However, in addition to the required laser power, which restricts use in potentially explosive atmospheres, the financial hurdle is also high. Within the scope of a proof of concept, it is shown that photometric measure- ments of Raman scattering are possible. The use of highly sensitive detectors allows the required excitation power to be reduced to levels compliant for operation in potentially explosive atmospheres. -
Carbon Dioxide Adsorption by Metal Organic Frameworks (Synthesis, Testing and Modeling)
Western University Scholarship@Western Electronic Thesis and Dissertation Repository 8-8-2013 12:00 AM Carbon Dioxide Adsorption by Metal Organic Frameworks (Synthesis, Testing and Modeling) Rana Sabouni The University of Western Ontario Supervisor Prof. Sohrab Rohani The University of Western Ontario Graduate Program in Chemical and Biochemical Engineering A thesis submitted in partial fulfillment of the equirr ements for the degree in Doctor of Philosophy © Rana Sabouni 2013 Follow this and additional works at: https://ir.lib.uwo.ca/etd Part of the Other Chemical Engineering Commons Recommended Citation Sabouni, Rana, "Carbon Dioxide Adsorption by Metal Organic Frameworks (Synthesis, Testing and Modeling)" (2013). Electronic Thesis and Dissertation Repository. 1472. https://ir.lib.uwo.ca/etd/1472 This Dissertation/Thesis is brought to you for free and open access by Scholarship@Western. It has been accepted for inclusion in Electronic Thesis and Dissertation Repository by an authorized administrator of Scholarship@Western. For more information, please contact [email protected]. i CARBON DIOXIDE ADSORPTION BY METAL ORGANIC FRAMEWORKS (SYNTHESIS, TESTING AND MODELING) (Thesis format: Integrated Article) by Rana Sabouni Graduate Program in Chemical and Biochemical Engineering A thesis submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy The School of Graduate and Postdoctoral Studies The University of Western Ontario London, Ontario, Canada Rana Sabouni 2013 ABSTRACT It is essential to capture carbon dioxide from flue gas because it is considered one of the main causes of global warming. Several materials and various methods have been reported for the CO2 capturing including adsorption onto zeolites, porous membranes, and absorption in amine solutions. -
Input-Output Transfer Function Analysis of a Photometer Circuit Based on an Operational Amplifier
Sensors 2008, 8, 35-50 sensors ISSN 1424-8220 © 2008 by MDPI www.mdpi.org/sensors Input-output Transfer Function Analysis of a Photometer Circuit Based on an Operational Amplifier Wilmar Hernandez Department of Circuits and Systems in the EUIT de Telecomunicacion at the Universidad Politecnica de Madrid (UPM), Campus Sur UPM, Ctra. Valencia km 7, Madrid 28031, Spain Phone: +34913367830. Fax: +34913367829. E-mail: [email protected] Received: 22 December 2007 / Accepted: 7 January 2008 / Published: 9 January 2008 Abstract: In this paper an input-output transfer function analysis based on the frequency response of a photometer circuit based on operational amplifier (op amp) is carried out. Op amps are universally used in monitoring photodetectors and there are a variety of amplifier connections for this purpose. However, the electronic circuits that are usually used to carry out the signal treatment in photometer circuits introduce some limitations in the performance of the photometers that influence the selection of the op amps and other electronic devices. For example, the bandwidth, slew-rate, noise, input impedance and gain, among other characteristics of the op amp, are often the performance limiting factors of photometer circuits. For this reason, in this paper a comparative analysis between two photodiode amplifier circuits is carried out. One circuit is based on a conventional current- to-voltage converter connection and the other circuit is based on a robust current-to-voltage converter connection. The results are satisfactory and show that the photodiode amplifier performance can be improved by using robust control techniques. Keywords: photometer circuit, current-to-voltage converter connection, frequency response, robust control Sensors 2008, 8 36 1. -
Hackerspaces
d WP4 | CASE STUDY Report: Hackerspaces Theme [ssh.2013.3.2-1][Social Innovation- Empowering People, changing societies] Project Full Title: “Transformative Social Innovation Theory project” Grant Agreement n. 613169 This project has received funding from the European Union’s Seventh Framework Programme for research, technological development and demonstration under grant agreement no 613169 Suggested citation: Sabine Hielscher, Adrian Smith, Mariano Fressoli (2015) WP4 Case Study Report: Hackerspaces, Report For the TRANSIT FP7 Project, SPRU, University oF Sussex, Brighton. Acknowledgements: We wish to thank everyone in the Hackerspace scene who helped us with our research, whether through interviews, welcoming us to Hackerspaces and events, or putting us in touch with others. We also thank our colleagues in the TRANSIT project, at SPRU, at UNQ and Fundación Cenit For their help and encouragement with the research. Finally, we thank the European Commission and their FP7 research programme For Funding the TRANSIT project. Date: 14 January 2015 Authors: Sabine Hielscher, Adrian Smith, Mariano Fressoli Contact person: Adrian Smith Table of contents 1 Introduction to Hackerspaces 2 Methodology 2.1 Researcher relations to the case 2.2 Methods 3 Analysis of transnational network(ing) 3.1 Transnational networking: Hackerspaces 3.2 Aspects of ‘innovation’ and ‘change’ of the transnational network(ing) 3.3 Aspects of empowerment and disempowerment of the transnational network(ing) 3.4 Other issues about the transnational networking 4 Local initiative -
Photoelectric Spectrophotometry by the Null Method'
. PHOTOELECTRIC SPECTROPHOTOMETRY BY THE NULL METHOD' By K. S. Gibson CONTENTS Page I. Introduction 325 II. Spectral transmission 329 1. Apparatus 329 2. Method 333 3 Errors and accuracy 337 III. Diffuse spectral reflection 348 IV. Other applications 350 V. Summary 352 I. INTRODUCTION Anyone who has had experience in trying to make spectro- photometric measurements of transmission or reflection in the blue and violet parts of the spectrum is well aware of the difficulty of obtaining reliable determinations in this region. Nearly all methods have relatively low sensitivity, or else are inaccurate for other reasons, from wave lengths 400 to 500 millimicrons (m/x). Radiometric methods, which are so suitable for infra-red work and which have been used also in the visible and even in the ultra- violet, are, nevertheless, not of the highest accuracy in these latter regions because of the relatively low radiant power of all sources used for this kind of work, the radiant power decreasing continuously with the wave length. It is very difficult to obtain accurate determinations below 500 m/x by the usual radiometric methods. Any visual method is limited in the blue and violet because of the combined low visibility of the human eye and the low radiant power of the sources used, except at the few wave lengths where monochromatic light of great intensity can be ob- tained, as from the mercury arc. The Hilger sector photometer method, which is the only photographic method of speed and reliability, also has its limitations for this region. Being such a 1 An abst-act of this paper was presented to the Optical Society of America at the Baltimore meet- ing, Dec, 27, 1918. -
Application of Filter Photometers in the Production of Ethylene and Propylene
Analytical Products Sales Engineering Application of Filter Photometers in the Production of Ethylene and Propylene SC7-66-403 Gary D. Brewer APPLICATION OF FILTER PHOTOMETERS IN THE PRODUCTION OF ETHYLENE AND PROPYLENE Gary D. Brewer Product Manager, Photometers ABB Inc. 843 N. Jefferson St. Lewisburg, WV 24901 KEYWORDS Photometer, Infrared Spectroscopy, IR, Near Infrared Spectroscopy, NIR, Ultraviolet Spectroscopy, UV, Ethylene, Propylene ABSTRACT There have been several successful applications of process filter photometers in ethylene plants throughout the world. The process of manufacturing ethylene is extremely fast; therefore, the continuous measurements provided by filter photometers allow for a fast response to process changes for better control and process optimization. The capability of the current generation of filter photometers to use several analytical wavelengths to compensate for spectral interferences have allowed their use in measurements that previously could not be done by photometers. The high reliability and simplicity of filter photometers make them a valuable tool in the process control of an olefins plant. Applications in the IR and NIR spectral regions in both the vapor and liquid phases will be discussed to demonstrate their capabilities and benefits in this manufacturing process. Applications that will be discussed include the measurement of acetylene and ethane at the acetylene converters and the measurement of methyl acetylene and propadiene (MAPD) at the MAPD converters can be measured on a single infrared photometer. Applications at the caustic wash tower and the measurement of carbon dioxide at the furnace decoke will also be discussed. INTRODUCTION Ethylene is one of the highest volume chemicals produced in the world. -
The Fibreculture Journal Issue 18 2011
The Fibreculture Journal DIGITAL MEDIA + NETWORKS + TRANSDISCIPLINARY CRITIQUE Issue 18 : Trans edited by Andrew Murphie, Adrian Mackenzie and Mitchell Whitelaw The Fibreculture Journal is an Open Humanities Press Journal. The LOCKSS System has the permission to collect, preserve and serve this open access Archival Unit. The Fibreculture Journal is published under a Creative Commons, By Attribution-Non Commercial-No Derivative License. ISSN: 1449 – 1443 , Published in Sydney, Australia Fibreculture Publications/The Open Humanities Press 2011 The journal is peer reviewed as per section 4.3.4 of the Australian HERDC Specifications. About the Fibreculture Journal The Fibreculture Journal is a peer reviewed international journal, first published in 2003 to explore the issues and ideas of concern to the Fibreculture network. The Fibreculture Journal now serves wider social formations across the international community of those thinking critically about, and working with, contemporary digital and networked media. The Fibreculture Journal has an international Editorial Board and Committee. In 2008, the Fibreculture Journal became a part of the Open Humanities Press , a key initiative in the development of the Open Access journal community. The journal encourages critical and speculative interventions in the debate and discussions concern- ing a wide range of topics of interest. These include the social and cultural contexts, philosophy and politics of contemporary media technologies and events, with a special emphasis on the ongoing social, technical -
Winter for the Membership of the American Crystallographic Association, P.O
AMERICAN CRYSTALLOGRAPHIC ASSOCIATION NEWSLETTER Number 4 Winter 2004 ACA 2005 Transactions Symposium New Horizons in Structure Based Drug Discovery Table of Contents / President's Column Winter 2004 Table of Contents President's Column Presidentʼs Column ........................................................... 1-2 The fall ACA Council Guest Editoral: .................................................................2-3 meeting took place in early 2004 ACA Election Results ................................................ 4 November. At this time, News from Canada / Position Available .............................. 6 Council made a few deci- sions, based upon input ACA Committee Report / Web Watch ................................ 8 from the membership. First ACA 2004 Chicago .............................................9-29, 38-40 and foremost, many will Workshop Reports ...................................................... 9-12 be pleased to know that a Travel Award Winners / Commercial Exhibitors ...... 14-23 satisfactory venue for the McPherson Fankuchen Address ................................38-40 2006 summer meeting was News of Crystallographers ...........................................30-37 found. The meeting will be Awards: Janssen/Aminoff/Perutz ..............................30-33 held at the Sheraton Waikiki Obituaries: Blow/Alexander/McMurdie .................... 33-37 Hotel in Honolulu, July 22-27, 2005. Council is ACA Summer Schools / 2005 Etter Award ..................42-44 particularly appreciative of Database Update: -
Raman Spectroscopy Protocol
raman-prtkl4.doc 1/15 10.07.07 Raman Spectroscopy Comparison of Infrared Spectra with those gathered by Raman Spectroscopy of selected substances Protocol June 9th and 11th 1999, August 19th and 20th 1999, February 28th and 29th 2000 Headed by: Dr. M. Musso Handed in by : Pierre Madl (Mat-#: 9521584) Maricela Yip (Mat-#: 9424495) Salzburg, August 28th 2000 raman-prtkl4.doc 2/15 10.07.07 Introduction When radiation passes through a transparent medium, the species present scatter a fraction of the beam in all directions. In 1928, the Indian physicist C.V.Raman discovered that the wavelength of a small fraction of the radiation scattered by certain molecules differ from that of the incident beam; furthermore, the shifts in wavelength depend upon the chemical structure of the molecules responsible for scattering. The theory of Raman scattering, which now is well understood, shows that the phenomenon results from the same type of quantized vibrational changes that are associated with infrared (IR) absorption. Thus, the difference in wavelength between the incident and scattered radiation corresponds to wavelengths in the mid-infrared region. Indeed, Raman scattering spectrum and infrared spectrum for a given species often resemble one another quite closely. There are, however, enough differences between the kinds of groups that are infrared active and those that are Raman active to make the techniques complementary rather than competitive. For some problems, the infrared method is the superior tool, for others, the Raman procedure offers more useful spectra. An important advantage of Raman spectra over infrared lies in the fact that water does not cause interference; indeed, Raman spectra can be obtained form aqueous solutions. -
New Language Leader Upper Intermediate Wordlist Chronological
New Language Leader Upper Intermediate chronological New Language Leader Upper Intermediate Wordlist chronological Unit Headword Word Class German French Italian Example Sentence 1 actions speak phr Taten sagen mehr als les gestes sont plus i fattii dicono più delle The council believes that actions speak louder than words. louder than words Worte éloquents que les mots parole 1 aggressive adj aggressiv aggressif aggressivo Have you ever sent an aggressive email? 1 analyse v analysieren analyser analizzare Most recently, an experiment in 2011 at the University of Milan analysed the relationship between 721 social media users and found that 92 percent were connected by only four stages, or five degrees of separation. 1 anecdote n Anekdote anecdote aneddoto Anecdotes tell short interesting stories about a person or event. 1 appropriacy n Angemessenheit adéquation, justesse decenza Appropriacy of vocabulary: is it the right meaning and register? 1 be on the same phr auf derselben être sur la même sulla stessa lunghezza The two of them are on the same wavelength. wavelength Wellenlänge longueur d'ondes d'onda 1 bump into v zufällig treffen rencontrer par hasard incocciare, incontrare I bumped into one of my friend from school when I was per caso shopping in Paris. 1 catch up with v auf dem Laufenden rester au courant essere al corrente I can catch up with all the news from home. bleiben 1 communication n Kommunikationsfähigke communiquer bien comunicatività She became interested in communication skills while she skills iten was studying for her MBA at Edinburgh University. 1 concept n Konzept concept concetto The concept „Sic degrees of separation“ goes back to a 1929 book of short stories. -
The CU 2-D-MAX-DOAS Instrument – Part 2: Raman Scattering Probability Measurements and Retrieval of Aerosol Optical Properties
Atmos. Meas. Tech., 9, 3893–3910, 2016 www.atmos-meas-tech.net/9/3893/2016/ doi:10.5194/amt-9-3893-2016 © Author(s) 2016. CC Attribution 3.0 License. The CU 2-D-MAX-DOAS instrument – Part 2: Raman scattering probability measurements and retrieval of aerosol optical properties Ivan Ortega1,2, Sean Coburn1,2, Larry K. Berg3, Kathy Lantz2,4, Joseph Michalsky2,4, Richard A. Ferrare5, Johnathan W. Hair5, Chris A. Hostetler5, and Rainer Volkamer1,2 1Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO, USA 2Cooperative Institute for Research in Environmental Sciences (CIRES), Boulder, CO, USA 3Pacific Northwest National Laboratory, Richland, WA, USA 4Global Monitoring Division, Earth System Research Laboratory, NOAA, Boulder, CO, USA 5NASA Langley Research Center, Hampton, VA, USA Correspondence to: Rainer Volkamer ([email protected]) Received: 8 December 2015 – Published in Atmos. Meas. Tech. Discuss.: 18 January 2016 Revised: 12 July 2016 – Accepted: 13 July 2016 – Published: 23 August 2016 Abstract. The multiannual global mean of aerosol optical retrievals of AOD430 and g with data from a co-located depth at 550 nm (AOD550/ over land is ∼ 0.19, and that over CIMEL sun photometer, Multi-Filter Rotating Shadowband oceans is ∼ 0.13. About 45 % of the Earth surface shows Radiometer (MFRSR), and an airborne High Spectral AOD550 smaller than 0.1. There is a need for measurement Resolution Lidar (HSRL-2). The average difference (rela- techniques that are optimized to measure aerosol optical tive to DOAS) for AOD430 -
Publishing Catalogue 2016 Royal Society of Chemistry RSC Gold Everything You Need in One Sparkling Online Package
Publishing Catalogue 2016 Royal Society of Chemistry RSC Gold Everything you need in one sparkling online package RSC Gold is: • Balanced and complete – stay connected to all the key content within the chemical sciences spectrum • International – authors and editorial boards from over one hundred countries contribute, ensuring a truly global perspective • Flexible – we offer tiered pricing options based on your institution’s size and scope, no matter how big or small RSC Gold includes: • A wide-ranging list of Royal Society of Chemistry Caltech’s RSC Gold journal, database and magazine content package subscription has • Our Journals Archive lease 1841-2007 been a very welcome development ... I am very • A bonus eBook series appreciative of the general excellence of articles in the • The option to continually upgrade and expand your RSC research journals, subscription with new journals and our latest published evidenced by strong impact factors and material increases in local download statistics. There’s also Gold for Gold… Dana L Roth Caltech Library, US Purdue University, USA Gold for Gold voucher codes can be used to publish new chemical science papers in any Royal Society of Chemistry journal via the Gold open access option. Each voucher code can be used to publish one paper free of charge, and is a good way to ensure maximum visibility for your institution’s research. Find out more – contact your Account Manager or email [email protected] Registered charity number: 207890 Royal Society of Chemistry | Publishing | www.rsc.org/publishing Contacts For contact details please see the Regional Representatives and Agents list on page 40.