120 research outputs found
Biotransformation of carbon dioxide in bioelectrochemical systems: State of the art and future prospects
No full textCarbon dioxide (CO2) utilization/recycling for the production of chemicals and gaseous/liquid energy-carriers is a way to moderate the rising CO2 in the atmosphere. One of the possible solutions for the CO2 sequestration is the electrochemical reduction of this stable molecule to useful fuel/products. Nevertheless, the surface chemistry of CO2 reduction is a challenge due to the presence of large energy barriers, requiring noticeable catalysis. The recent approach of microbial electrocatalysis of CO2 reduction has promising prospects to reduce the carbon level sustainably, taking full advantage of CO2-derived chemical commodities. We review the currently investigated bioelectrochemical approaches that could possibly be implemented to enable the handling of CO2 emissions. This review covers the most recent advances in the bioelectrochemical approaches of CO2 transformations in terms of biocatalysts development and process design. Furthermore, the extensive research on carbon fixation and conversion to different value added chemicals is reviewed. The review concludes by detailing the key challenges and future prospects that could enable economically feasible microbial electrosynthesis technology.Suman Bajracharya was supported by a PhD grant from VITO's strategic research funds (project no. 1310225). Dr. Sandipam Srikanth was supported the Marie-Curie International Incoming Fellowship (IIF) supported Project ELECTROENZEQUEST (Grant No.: 330803) and G. Mohanakrishna by the Marie-Curie Intra-European Fellowship (IEF) supported project BIO-ELECTRO-ETHYLENE (Grant No: 626959) from the European Commission
Correction to: Short- and long-term outcomes in infective endocarditis patients: a systematic review and meta-analysis
No full textCorrection Unfortunately, after publication of this article [1], it was noticed that the name of the fifth author was incorrectly displayed as Akshaya Srikanth Bahagavathula. The correct name is Akshaya Srikanth Bhagavathula and can be seen in the corrected author list above. The original article has also been updated to correct this error
STRATEGIES TO ENHANCE BIOHYDROGENESIS AND BIOELECTROGENESIS BY REGULATING MICROBIAL FERMENTATION AND RESPIRATION PROCESSES
No full textODDS Oregon needs assessment (ONA) third party analysis review report
No full textprepared for: Oregon Department of Human Services, Office of Developmental Disabilities Services ; prepared by: University Center for Excellence in Developmental Disabilities, Biostatistics and Design Program at Oregon Health & Science University ; authors: Willi Horner-Johnson, Ph.D., Priya Srikanth, M.P.H., Alison J. Martin, Ph.D., Rhonda Eppelsheimer, M.S.W.This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Includes bibliographical references.Mode of access: Internet from the Oregon Government Publications Collection.Text in English
Co2 Capture and Transformation to Ethanol using Dehydrogenase Cascade at Cathode in Bioelectrochemical System (BES): Role of Carbonic Anhydrase
No full textBioelectrochemical Systems (BES) for Microbial Electroremediation: An Advanced Wastewater Treatment Technology
No full textBio-electrochemical system (BES) as an innovative approach for sustainable waste management in petroleum industry
No full textBetter outcomes for hospitalized patients with TIA when in stroke units: An observational study, Author Response (Editorial)
No full textEditors' Note: Drs. Phan and Srikanth point out that in “Better outcomes for hospitalized patients with TIA when in stroke units: An observational study,” the recurrence rate was much higher than that in an Australian rapid/outpatient-based TIA pathway. Inability to walk (which could indicate stroke instead of TIA), low usage of antiplatelet therapy, and time to antiplatelet therapy are possible explanations. In response, Cadilhac et al. comment that initiation of aspirin within several hours vs 24–48 hours has not been shown to clearly improve outcomes.No Full Tex
Topological analysis of the grain boundary space
No full textThesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2011.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.Cataloged from PDF version of thesis.Includes bibliographical references (p. 117-125).Grain boundaries and their networks have a profound influence on the functional and structural properties of every class of polycrystalline materials and play a critical role in structural evolution and phase transformations. Recent experimental advances enable a full crystallographic characterization, including the boundary misorientation and inclination parameters, of grain boundaries. Despite these advances, a lack of appropriate analytical tools severely undermines our ability to analyze and exploit the full potential of the vast amounts of experimental data available to materials scientists. This is because the topology of the grain boundary space is unknown and even a well-studied part of the complete grain boundary space, the misorientation space, is relatively poorly understood. This thesis summarizes efforts to improve the representation of misorientation information and to understand the topology of the complete grain boundary space. First, the topology of the space of misorientations is discussed with a focus on the effect of symmetries on the minimum embedding dimensions in Euclidean space. This opens the door to a new method of representation of misorientation information in which grain boundaries can be uniquely colored by their misorientations. Second, conditions under which the topology of the grain boundary space has been resolved are presented. Resolving the topology of the complete grain boundary space not only facilitates statistical analysis of grain boundaries, but can also help describe the structure-property relationships of these interfaces.by Srikanth Patala.Ph.D
Study of structural integrity of interstellar spacecraft reaction chamber and thrust structure in support of Project Icarus
No full textThis thesis supports studies of the international effort of Project Icarus, dedicated to the unmanned, interstellar exploration of nearby stellar systems within the next century. The target system is 5.9 light years away, with a required velocity of 12% the speed of light. This study primarily focuses on the structural analysis of the reaction chamber and supporting structure of the Icarus interstellar spacecraft, which will be powered by nuclear fusion reactions to achieve the required velocity and time-frame for the mission. First, a computational finite element analysis is conducted on the reaction chamber in terms of loading, vibration, and fatigue. Different configurations and assumptions are studied for the reaction chamber as well. Present-day manufacturing considerations are also taken into account, with a modest extrapolation for future manufacturing technologies that are currently not in existence. Next, the thrust supporting structure for the reaction chamber is incorporated into the analysis. This study serves as a precursor for the multi-level analysis into the eventual detailed design and production of an interstellar spacecraft, and is the first such study.M.S.Includes bibliographical referencesby Srikanth K. Redd
- …
