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  • 1
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    In silico discovery of metal-organic frameworks for precombustion CO2 capture using a genetic algorithm (2016)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2016-10-16
    Description: Discovery of new adsorbent materials with a high CO 2 working capacity could help reduce CO 2 emissions from newly commissioned power plants using precombustion carbon capture. High-throughput computational screening efforts can accelerate the discovery of new adsorbents but sometimes require significant computational resources to explore the large space of possible materials. We report the in silico discovery of high-performing adsorbents for precombustion CO 2 capture by applying a genetic algorithm to efficiently search a large database of metal-organic frameworks (MOFs) for top candidates. High-performing MOFs identified from the in silico search were synthesized and activated and show a high CO 2 working capacity and a high CO 2 /H 2 selectivity. One of the synthesized MOFs shows a higher CO 2 working capacity than any MOF reported in the literature under the operating conditions investigated here.
    Electronic ISSN: 2375-2548
    Topics: Natural Sciences in General
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Homogeneous antibody for activity enhancement [Medical Sciences] (2015)
    National Academy of Sciences
    Details
    Publication Date: 2015-08-26
    Description: Antibodies have been developed as therapeutic agents for the treatment of cancer, infection, and inflammation. In addition to binding activity toward the target, antibodies also exhibit effector-mediated activities through the interaction of the Fc glycan and the Fc receptors on immune cells. To identify the optimal glycan structures for individual...
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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  • 3
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    In vitro hydrogen production from biomass [Applied Biological Sciences] (2015)
    National Academy of Sciences
    Details
    Publication Date: 2015-04-22
    Description: The use of hydrogen (H2) as a fuel offers enhanced energy conversion efficiency and tremendous potential to decrease greenhouse gas emissions, but producing it in a distributed, carbon-neutral, low-cost manner requires new technologies. Herein we demonstrate the complete conversion of glucose and xylose from plant biomass to H2 and CO2...
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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  • 4
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    Nlrp6 regulates intestinal antiviral innate immunity (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-10-24
    Description: The nucleotide-binding oligomerization domain-like receptor (Nlrp) 6 maintains gut microbiota homeostasis and regulates antibacterial immunity. We now report a role for Nlrp6 in the control of enteric virus infection. Nlrp6(-/-) and control mice systemically challenged with encephalomyocarditis virus had similar mortality; however, the gastrointestinal tract of Nlrp6(-/-) mice exhibited increased viral loads. Nlrp6(-/-) mice orally infected with encephalomyocarditis virus had increased mortality and viremia compared with controls. Similar results were observed with murine norovirus 1. Nlrp6 bound viral RNA via the RNA helicase Dhx15 and interacted with mitochondrial antiviral signaling protein to induce type I/III interferons (IFNs) and IFN-stimulated genes (ISGs). These data demonstrate that Nlrp6 functions with Dhx15 as a viral RNA sensor to induce ISGs, and this effect is especially important in the intestinal tract.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Penghua -- Zhu, Shu -- Yang, Long -- Cui, Shuang -- Pan, Wen -- Jackson, Ruaidhri -- Zheng, Yunjiang -- Rongvaux, Anthony -- Sun, Qiangming -- Yang, Guang -- Gao, Shandian -- Lin, Rongtuan -- You, Fuping -- Flavell, Richard -- Fikrig, Erol -- AI099625/AI/NIAID NIH HHS/ -- AI103807/AI/NIAID NIH HHS/ -- N01-HHSN272201100019C/PHS HHS/ -- R03 AI099625/AI/NIAID NIH HHS/ -- R21 AI103807/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Nov 13;350(6262):826-30. doi: 10.1126/science.aab3145. Epub 2015 Oct 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Infectious Diseases, Yale University School of Medicine, 300 Cedar Street, New Haven, CT 06510, USA. Department of Microbiology and Immunology, New York Medical College, Valhalla, NY 10595, USA. ; Department of Immunobiology, Yale University School of Medicine, 300 Cedar Street, New Haven, CT 06510, USA. ; Section of Infectious Diseases, Yale University School of Medicine, 300 Cedar Street, New Haven, CT 06510, USA. ; Department of Genetics, Yale University School of Medicine, 300 Cedar Street, New Haven, CT 06510, USA. ; Lady Davis Institute, Department of Medicine, McGill University, Montreal, Quebec, Canada. ; Department of Immunobiology, Yale University School of Medicine, 300 Cedar Street, New Haven, CT 06510, USA. Howard Hughes Medical Institute, Chevy Chase, MD 20815-6789, USA. richard.flavell@yale.edu erol.fikrig@yale.edu. ; Section of Infectious Diseases, Yale University School of Medicine, 300 Cedar Street, New Haven, CT 06510, USA. Howard Hughes Medical Institute, Chevy Chase, MD 20815-6789, USA. richard.flavell@yale.edu erol.fikrig@yale.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26494172" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Caliciviridae Infections/immunology/virology ; Cardiovirus Infections/immunology/virology ; Cytokines/genetics ; Encephalomyocarditis virus/immunology ; Gastroenteritis/immunology/virology ; Gene Expression Regulation ; HEK293 Cells ; Humans ; Immunity, Innate/*genetics ; Interferon Type I/*immunology ; Intestines/*immunology/*virology ; Mice ; Mice, Mutant Strains ; Norovirus/immunology ; RNA Helicases/*physiology ; RNA, Viral/*immunology ; Receptors, Cell Surface/genetics/*physiology ; Ubiquitins/genetics ; Viremia/genetics/immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 5
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    Equatorial plasma bubble generation / inhibition during 2015 St. Patrick's Day storm (2017)
    Wiley
    Details
    Publication Date: 2017-08-01
    Description: All sky camera observations carried out over Taiwan showed intense equatorial plasma bubbles (EPB) in 630.0 nm airglow images on consecutive nights of 13-16 March, 2015, but was absent in the following night of 17 March when St. Patrick's Day magnetic storm occurred. Rate of total electron content (TEC) index by using Global Positioning System (GPS) network data also confirmed the absence of irregularities on the night 17 March. The results however revealed strong irregularities over Indian sector on the same night. Flux tube integrated Rayleigh-Taylor instability growth rates computed using the prior (forecast) state of Thermosphere-Ionosphere Electrodynamics General Circulation Model output after assimilating the GPS-TEC measurements also agree with the observations, showing smaller values over Taiwan and larger values over India on the night of 17 March. The ionospheric response to the storm over Taiwan that resulted in the apparent inhibition of EPB is investigated in this study by using the data assimilation output. Results indicate that on the night of the magnetic storm, pre-reversal enhancement of zonal electric field over Taiwan was weaker when compared to that over India. Further analysis suggests that the absence of enhancement in the zonal electric field could be due to westward penetration electric field in response to rapid northward turning of interplanetary magnetic field that occurred during the dusk period over Taiwan.
    Print ISSN: 1539-4964
    Electronic ISSN: 1542-7390
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
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  • 6
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    Chemical Modification at and within Nanopowders: Synthesis of Core-shell Al2O3@TiON Nanopowders via Nitriding nano-(TiO2)0.43(Al2O3)0.57 Powders in NH3 (2017)
    Wiley
    Details
    Publication Date: 2017-10-26
    Description: Here we demonstrate the potential utility of using chemical modification to reorganize metastable nanoparticles into nanostructured nanoparticles without coincidentally inducing extensive necking/sintering. The motivation for this effort derives from the concept that chemical reduction of a single component in a mixed-metal nanoparticle will create segregated islands of a second immiscible phase. Given the very high chemical energies inherent in nanoparticles, the formation of even smaller islands of a second phase can be anticipated to lead to extremely high interfacial energies that may drive these islands to diffuse to cores or surfaces to form core-shell structures that minimize such interfacial energies. Thus, ammonolysis of (TiO 2 ) 0.43 (Al 2 O 3)0.57 composition nanopowders where both elements are approximately uniformly mixed at atomic length scales, under selected conditions (1000 °C) for various periods of time at constant NH 3 flow rates leads primarily to the reduction of the Ti species to form TiN or TiON which then appears to diffuse to the surface of the particles. The final products consist of Al 2 O 3 @TiON core-shell nanopowders that remain mostly unaggregated pointing to a new mechanism for modifying nanopowder chemistries and physical properties. This article is protected by copyright. All rights reserved.
    Print ISSN: 0002-7820
    Electronic ISSN: 1551-2916
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Wiley
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  • 7
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    Global equatorial plasma bubble growth rates using ionosphere data assimilation (2017)
    Wiley
    Details
    Publication Date: 2017-03-16
    Description: Flux tube integrated Rayleigh-Taylor instability growth rates computed using the results of ionosphere data assimilation are used for the first time to investigate global plasma bubble occurrence. The study is carried out by assimilating total electron content measurements using ground based global positioning system (GPS) receivers into thermosphere ionosphere electrodynamic general circulation model, and the growth rates are calculated using standalone model run without assimilation (control run) as well as using prior (or forecast) state output of the assimilation run. The growth rates are compared with rate of change of total electron content index (ROTI), estimated from global network of GPS receivers, as well as all sky airglow observations carried out over Taiwan on the nights of 16, and 17 March 2015. In contrast to the growth rates using the control run, results using data assimilation show remarkable agreement with the ROTI. Further, the all sky images reveal intense plasma bubbles over Taiwan on the night of 16 March, when the corresponding assimilated growth rate is also pronounced. Similarly, absence of plasma bubbles in the all sky images on the night of 17 March (St. Patrick's day storm) is supported by smaller growth rates predicted by the assimilation model. Significant improvements in the calculated growth rates could be achieved because of the accurate updating of zonal electric field in the data assimilation forecast. The results suggest that realistic estimate or prediction of plasma bubble occurrence could be feasible by taking advantage of the data assimilation approach adopted in this work.
    Print ISSN: 0148-0227
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
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  • 8
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    CFD Analysis of the Runaway Stability of a Model Pump-Turbine (2016)
    Institute of Physics (IOP)
    Details
    Publication Date: 2016-12-14
    Description: The relations between the runaway stability characteristics and the flow patterns inside the runner of pump-turbine are supposed to be close and should be studied. The runaway processes of a model pump-turbine at four guide-vane openings (GVOs) were simulated by the three-dimensional computational fluid dynamics. The results show that the runaway stability characteristics for the pump-turbine are different at different GVOs. For the small GVOs, the turbine characteristic trajectory undergoes damped oscillations; however, for large GVOs, the turbine characteristic trajectory settles into an un-damping oscillation. The evolution features of the reverse flow vortex structures (RFVS) at the runner inlet during the runaway oscillations have distinct patterns between the small and large GVOs. For small GVOs, the RFVSs only locate at the mid-span; however, for the large GVOs, the location of the RFVSs switches back and forth between the mid-span section and the hub side when the turbin...
    Print ISSN: 1755-1307
    Electronic ISSN: 1755-1315
    Topics: Geography , Geosciences , Physics
    Published by Institute of Physics (IOP)
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  • 9
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    Defect-dependent carrier transport behavior of polymer:ZnO composites/electrodeposited CdS/indium tin oxide devices (2015)
    American Institute of Physics (AIP)
    Details
    Publication Date: 2015-07-29
    Description: Currents through the poly(3,4-ethylenedioxythiophene) doped with poly(styrenesulfonate) and ZnO nanoparticles (PEDOT:PSS:ZnO)/CdS/indium tin oxide (ITO) hetero-structures are studied. The authors introduced the electrodeposition technique with sulfide treatment to improve the film quality of CdS. It is shown that sulfide treatment leads to a reduction in the number of donor-like defects (that is, sulfur vacancies and cadmium interstitials) in the CdS films, which leads to the conversion of carrier transport behavior from Poole-Frenkel emission to thermionic emission-diffusion for PEDOT:PSS:ZnO/CdS/ITO devices. A correlation is identified for providing a guide to control the current transport behavior of PEDOT:PSS:ZnO/CdS/ITO devices.
    Print ISSN: 0021-8979
    Electronic ISSN: 1089-7550
    Topics: Physics
    Published by American Institute of Physics (AIP)
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  • 10
    Electronic Resource
    Electronic Resource
    Garment's pressure sensation (1): subjective assessment and predictability for the sensation (2002)
    Bingley : Emerald
    International journal of clothing science & technology 14 (2002), S. 307-316 
    Details
    ISSN: 0955-6222
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: In order to study the wearing comfort of pressure for tight-fit clothing, the sensation of wearing pressure and the other related sensations have been assessed for knit garments, which have different sizes and fabrics which have different extensibilities, by developing a wearing experimental procedure. Using factor analysis with principal factor solutions and rotated by the Varimax method, we obtained relevant factor matrices about the subjective assessment. At the same time, objective clothing pressure, fabric extensibility and garment fitness have been measured. Regression analysis showed that the garment fitness and fabric extensibility had great predictive power for the subjective pressure assessment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/09556220210446121
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    Paper (German National Licenses)
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