Results 101 to 110 of about 156,055 (260)

Hydrocarbon emissions from a modern commercial airliner [PDF]

, 2006
We report selected carbon species emission indices (EIs) for a Rolls Royce RB211-535-E4 turbofan engine that were acquired during the NASA EXperiment to Characterize Aircraft Volatile Aerosol and Trace-species Emissions (EXCAVATE).
Anderson, BE, Blake, DR, Chen, G
core  

Incubation Time Measurements in Thin-Film Deposition [PDF]

, 1997
Studies on the initial growth or nucleation of materials and research on selective deposition often mention an incubation time. Many techniques exist to determine the incubation time.
Holleman, J., Rem, J.B., Verweij, J.F., Verweij, J.F.   +3 more
core   +2 more sources

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

Advanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen, Haosen Miao, Weiying Hong, Matteo Palma   +3 more
wiley   +1 more source

Sulfur speciation in soured reservoirs: chemical equilibrium and kinetics

Journal of Petroleum Exploration and Production Technology, 2020
Reservoir souring is a widespread phenomenon in reservoirs undergoing seawater injection. Sulfate in the injected seawater promotes the growth of sulfate-reducing bacteria (SRB) and archaea-generating hydrogen sulfide.
Mahsan Basafa, Kelly Hawboldt
doaj   +1 more source

Abundances and variability of tropospheric volatile organic compounds at the South Pole and other Antarctic locations [PDF]

, 2010
Multiyear (2000-2006) seasonal measurements of carbon monoxide, hydrocarbons, halogenated species, dimethyl sulfide, carbonyl sulfide and C1-C4 alkyl nitrates at the South Pole are presented for the first time.
Beyersdorf, AJ, Blake, DR, Davis, D, Meinardi, S, Rowland, FS, Swanson, A   +5 more
core   +1 more source

From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts

Advanced Functional Materials, EarlyView.
Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado, Enqi Bu, Yaning Han, Carlos López‐Cartes, Mónica Calatayud, Huiyan Pan, Xiaowei Chen   +6 more
wiley   +1 more source

Environmental Factors in the Relapse and Recurrence of Inflammatory Bowel Disease:A Review of the Literature [PDF]

, 2015
The causes of relapse in patients with Crohn's disease (CD) and ulcerative colitis (UC) are largely unknown. This paper reviews the epidemiological and clinical data on how medications (non-steroidal anti-inflammatory drugs, estrogens and antibiotics ...
A Bitton, A Bitton, A Dignass, A Kaser, A Lunderquist, A Timmer, AJ Wakefield, AM Meyer, AN Ananthakrishnan, Andrew R. Hart, AP Dhillon, B Boye, BD Levy, C Abraham, C Luong, C Mowat, CN Bernstein, CS Guerreiro, CS North, D Lader, DA Gorard, DC Baumgart, DC Baumgart, E Lindberg, E Stepien, EA Magee, EA Magee, EA Miles, EF Foley, EM Sternberg, F Backhed, F Casellas, FN Aberra, G Bonizzi, G Bouma, G Cipolla, G Savoye, GE Reese, GF Bonner, GP Chrousos, H Brunner, H Tornqvist, IC Solberg, J Cosnes, J Cosnes, J Cosnes, J Eaden, JA Dominitz, JA Mancini, JB Felder, JC Meijers, JM Evans, KJ Khan, KS Rothfuss, L Beaugerie, L Beaugerie, L LeResche, L Lu, LM Lichtenberger, LR Sutherland, LR Sutherland, M Aslam, M Cottone, M Dybdahl, MB Grisham, MC Aldhous, MC Pitcher, MN Merrett, MT Severinsen, NJ Simmonds, NP Thompson, O Hovde, OA Hatoum, P Seksik, PJ Loll, R Reid, R Schreck, RD Cohen, RK Linskens, RM Beattie, RS Barua, S Danese, S Hayashi, S Levenstein, S Parcell, S Sigaud, S Singh, S Zhang, Simon S. M. Chan, SL Jowett, SM Collins, SM Collins, SS Hecht, ST Smale, SU Christl, SV Kane, T Hisamatsu, THJ Florin, Thomas D. Martin, U Erikson   +99 more
core   +1 more source

Heteroatom‐Engineering Promoted Co9S8 Bi‐functional Electrocatalyst for Hydrazine‐Assisted Hydrogen Production at Industrial Current Density

Advanced Functional Materials, EarlyView.
Fe and P co‐doped Co9S8 nanocorals (Fe, P‐Co9S8) are successfully synthesized by a heteroatom engineering strategy, which exhibit outstanding bifunctional electrocatalytic performance for both the hydrogen evolution reaction (HER) and hydrazine oxidation reaction (HzOR).
Yuying Meng, Chunyan Xiang, Wenbiao Zhang, Dahai Zeng, Bing Du, Bao Zhong, Yue Jiang, Damien Voiry, Qingsheng Gao   +8 more
wiley   +1 more source

Modulating Interfacial Potential Gradients in Metal−Carbon Catalysts via Phase‐Engineering for Lithium–Sulfur Batteries

Advanced Functional Materials, EarlyView.
It is elucidated that phase engineering of cobalt modulates the interfacial potential gradients of cobalt–carbon electrocatalysts, enhancing the intrinsic electrocatalytic performance. Modulating the dominant crystalline phase of cobalt from a hexagonal close‐packed to a face‐centered cubic enriches the electron density of carbon shells, thereby ...
Ji‐Oh Kim, Hengquan Guo, Seonghee Kim, Jae Bin Park, Seongwook Chae, Taekyun Kwon, Seungjo Hong, Byeong Jin Kim, Guadalupe Arturo De la Garza Gonzalez, Minjoon Park, Jae Ho Kim, Oi Lun Li, Seung Geol Lee, Jin Hong Lee   +13 more
wiley   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source