196,372 research outputs found
sj-docx-1-chl-10.1177_17475198221114760 – Supplemental material for Utilization of 4-fluoro-7-nitro-2,1,3-benzoxadiazole (NBD-F) as a fluorogenic reagent for the development of a spectrofluorometric assay method for taurine in energy drinks
No full textSupplemental material, sj-docx-1-chl-10.1177_17475198221114760 for Utilization of 4-fluoro-7-nitro-2,1,3-benzoxadiazole (NBD-F) as a fluorogenic reagent for the development of a spectrofluorometric assay method for taurine in energy drinks by Ahmed O Alnajjar, Abdallah Ahmed Elbashir, Rafea Elgack Elgorashe, Ammar M Ebrahim, Abubakr M Idris and Hany M Abd El-Lateef in Journal of Chemical Research</p
Decarbonization of the Gas Processing and Chemical Plants: The Path for Technology Commercialization
No full textAbstract: Natural gas has emerged as a crucial clean fuel source to address escalating global energy demands, projected to increase by 40% by 2030 and 15-16% by 2050 compared to 2014 and 2023, respectively. Nevertheless, the sustainability of natural gas as a source of energy and chemicals depends mainly on our success in decarbonizing the industry. I will share examples of decarbonizing midstream and downstream sectors of the industry in my presentation while identifying CO2 utilization routes. Dry reforming of methane (DRM) offers an avenue for converting carbon dioxide (CO2) and methane (CH4)—the two major greenhouse gases—into syngas, a vital chemical precursor. However, DRM is constrained by high energy demands, catalyst deactivation, and an unfavorable H2/CO ratio. My research team developed a novel technology with a dual-reactor system that produces multi-walled carbon nanotubes (MWCNTs) and syngas as products. CARGEN® offers at least 65% CO2 conversion at 50% of the energy demands of DRM. Utilizing modeling and experimental studies, we scaled up CARGEN® from the milligram scale to the multi-gram scale and, ultimately, to the multi-kilogram scale of MWCNT production. Ultimately, the outcome of this study encourages CARGEN-based chemicals and refinery plants that co-produce syngas, hydrogen, and MWCNTs from CO2 and natural gas as an integrated decarbonization solution. The technology is currently moving toward the commercialization phase.
Another example is the direct synthesis of dimethyl carbonate (DMC), which is considered the most promising route from a green chemistry perspective. This route generates water as the only byproduct in the reaction between CO2 and methanol. My research team worked with Shell to scale up this technology and evaluate its potential for commercialization.
Finally, my research team developed two new quantitative parameters to evaluate the probability of CO2 fixation for decarbonization technologies. The greenhouse gas reduction, sustainability, and economics framework (GASEF) assess commercial viability by simultaneously analyzing a CCU technology’s CO2 fixation (CO2Fix) potential and its economic benefits.
Biography: Elbashir is the director of Texas A&M’s Engineering Experiment Station Gas & Fuels Research Center (GFRC), a major research center involving 30 faculty members from the College Station and Qatar campuses of Texas A&M University (http://gfrc.tamu.edu/). He is a professor of chemical engineering and serves on the Qatar and College Station campuses. He has extensive research and teaching experience from four countries worldwide, including his previous position as a researcher at BASF R&D Catalysts in Iselin, New Jersey. His research focuses on designing advanced reactors and catalysts for natural gas and CO2 conversion and decarbonization. He has established several unique global research collaboration models between academia and industry, with research funds exceeding seventeen million dollars. He holds several U.S., European, and international patents and many scientific publications. The scholarship of his research activities has been recognized by awards from BASF Corp., Texas A&M University & TEES, the American Institute of Chemical Engineers, Shell, ORYX GTL Co., the Qatar Foundation, and others. Elbashir was elected as a Fellow of the AIChE in August 2023, a member of the Sudan National Academy of Sciences (SNAS) in 2022, and its general secretary in February 2024.Illinois Sustainable Technology Cente
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States" By M. Carey.
No full text"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States: containing bried sketches of the moral and political character of those states.
By M. Carey, member of the American philosophical, and of the American Antiquarian Society, and author of The Olive Branch, Cindiciae Hibernicae, essays on banking, on political economy, and on internal improvement.
To which are now added the English editor's comments on the subject; together with Important Advice to Emigrants, and Cautions Against Impositions Practiced in the Outports
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Dr. Glendon Swarthout
No full textHosted by Roger M. Busfield, MSU Assistant Professor of Speech and Theater, Meet the Author is designed to introduce a general audience to a contemporary author and their work through in-depth interviews. This episode features a conversation between Dr. Glendon Swarthout, prolific author and English professor at MSU, and assistant professors Sam S. Baskett and Theodore B. Strandness
Simulation of thermal plant optimization and hydraulic aspects of thermal distribution loops for large campuses
No full textFollowing an introduction, the author describes Texas A&M University and its utilities system. After that, the author presents how to construct simulation models for chilled water and heating hot water distribution systems. The simulation model was used in a $2.3 million Ross Street chilled water pipe replacement project at Texas A&M University. A second project conducted at the University of Texas at San Antonio was used as an example to demonstrate how to identify and design an optimal distribution system by using a simulation model. The author found that the minor losses of these closed loop thermal distribution systems are significantly higher than potable water distribution systems. In the second part of the report, the author presents the latest development of software called the Plant Optimization Program, which can simulate cogeneration plant operation, estimate its operation cost and provide optimized operation suggestions. The author also developed detailed simulation models for a gas turbine and heat recovery steam generator and identified significant potential savings. Finally, the author also used a steam turbine as an example to present a multi-regression method on constructing simulation models by using basic statistics and optimization algorithms. This report presents a survey of the author??s working experience at the Energy Systems Laboratory (ESL) at Texas A&M University during the period of January 2002 through March 2004. The purpose of the above work was to allow the author to become familiar with the practice of engineering. The result is that the author knows how to complete a project from start to finish and understands how both technical and nontechnical aspects of a project need to be considered in order to ensure a quality deliverable and bring a project to successful completion. This report concludes that the objectives of the internship were successfully accomplished and that the requirements for the degree of Degree of Engineering have been satisfied
Intern experience at CH���M Hill, Inc.: an internship report
No full textIncludes author's vita"Submitted to the College of Engineering of Texas A&M University in partial
fulfillment of the requirement for the degree of Doctor of Engineering."Includes bibliographical referencesA review of the author's internship experience with CH���M HILL, Inc.
during the period September 1975 through May 1976 is presented. During this nine month
internship the author worked as an Engineer II in the Industrial Processes discipline of this
large consulting engineering firm... The author's prime responsibility was as one of three
lead design engineers on the design of a large wastewater treatment facility for a pulp mill
in Hoquiam, Washington owned by ITT Rayonier Inc. The work generally consisted of the design
of individual treatment units and associated piping and pumping. The purpose of the project
was to provide wastewater treatment capabilities that would satisfy the effluent limitations
(standards) imposed upon the mill by the State of Washington Department of Ecology and the
U.S. Environmental Protection Agency. The author's assignment also entailed necessary
interaction with the project manager and other CH���M HILL design engineers and support staff
members, the client's representatives, and representatives of two other consulting engineering
firms working on the project. Thus, the internship position at CH���M HILL provided considerable
experience coordinating the author's work with the work of other engineers, guiding the design
and administrative efforts of a support staff, and interacting regularly with the client and
other consulting firms. This broad exposure to a variety of engineering and organizational
problems provided a valuable educational experience
Transition to turbulence in a qblique shock-wave/boundary-layer interaction at M=15
No full textDirect numerical simulations are carried out for different forcing techniques to trigger transition during the interaction between an oblique shock-wave and a laminar boundary-layer at M = 1.5. Three forcing methods are used: a) forcing of oblique unstable modes, whose shape and behaviour are determined by the local linear stability theory, b) broadband free-stream acoustic disturbances, and c) a cold plasma flow control device. While the oblique-mode breakdown is dominant for low-amplitude forcing, long streaky structures drive the transition process in a high-amplitude disturbance environment. LES are also performed on the experimental setup by the Institute of Theoretical and Applied Mechanics (ITAM) from Novosibirsk State University with cold plasma actuation. As well as the disturbance type, the effect of Reynolds number and forcing amplitude will be investigated
Letter from Cedrick M. Shimo to the Office of Redress Administration, June 4, 1991
No full textA letter from Cedrick M. Shimo to the Office of Redress Administration arguing that John Y. Udaka is entitled to a redress payment.These materials are from box 73 and 74 of the Frank Chin Papers. The Frank Chin Papers contain personal and professional correspondence between Frank Chin and Michi Weglyn relating to particular projects on which either author was working as well as files related to the Day of Remembrance Tribute to Michi Weglyn
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