Results 91 to 100 of about 212,515 (313)

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

Advanced Functional Materials, EarlyView.
Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu, Taoyu Zou, Cheng‐Yan Xu, Liang Zhen, Yang Li, Yong‐Young Noh   +5 more
wiley   +1 more source

Secondary aerosol formation from atmospheric reactions of aliphatic amines [PDF]

, 2007
Although aliphatic amines have been detected in both urban and rural atmospheric aerosols, little is known about the chemistry leading to particle formation or the potential aerosol yields from reactions of gas-phase amines.
Chhabra, P., Flagan, R. C., Knipping, E., Kroll, J. H., Murphy, S. M., Ng, N. L., Seinfeld, J. H., Sorooshian, A., Surratt, J. D., Tong, C.   +9 more
core   +3 more sources

Correlating microbial community profiles with geochemical data in highly stratified sediments from the Arctic Mid-Ocean Ridge [PDF]

, 2012
Microbial communities and their associated metabolic activity in marine sediments have a profound impact on global biogeochemical cycles. Their composition and structure are attributed to geochemical and physical factors, but finding direct correlations ...
Baumberger, Tamara, Flesland, Kristin, Fonseca, Rita, Hannisdal, Bjarte, Jorgensen, Steffen Leth, Lanzén, Anders, Pedersen, Rolf B., Schleper, Christa, Steen, Ida H., Thorseth, Ingunn H., Øvreås, Lise   +10 more
core   +1 more source

Genome gazing in ammonia-oxidizing archaea [PDF]

Nature Reviews Microbiology, 2019
This month’s Genome Watch highlights the unique evolutionary history, metabolic functions, and newly identified viruses and associated mobile genetic elements for the highly abundant and ubiquitous ammonia-oxidizing archaea.
openaire   +2 more sources

Graphene Nanosheet‐Based Mixed Proton‐Electron Conducting Membranes for Efficient Hydrogen Purification

Advanced Functional Materials, EarlyView.
A monolayer graphene/phosphoric‐acid mixed proton‐electron conducting membrane combines proton‐conducting nanoconfined acid channels with electron‐conducting graphene nanosheets for efficient high‐temperature hydrogen purification. The membrane achieves nearly 100% H2/CO2 selectivity and 69 GPU hydrogen permeance at 250°C, arising from synergistic ...
Kaiqiang He, Fanmengjing Wang, Dehua Dong, Yuan Kang, Zhikao Li, Jacek J. Jasieniak, Paul A. Webley, Douglas R. MacFarlane, Huanting Wang   +8 more
wiley   +1 more source

COD removal and nitrification of piggery wastewater in a sequencing batch reactor : a thesis submitted in partial fulfilment of the requirements for the degree of Master of Technology in Environmental Engineering [PDF]

, 1998
Piggery wastewaters are particularly problematic when released untreated into the environment. They contain high levels of chemical oxygen demand (COD) and also nutrients such as nitrogen and phosphorus which can cause eutrophication in surface waters ...
Wong, Wing Nga
core  

Determination of the nature of the Cu coordination complexes formed in the presence of NO and NH3 within SSZ-13 [PDF]

, 2015
Ammonia-selective catalytic reduction (NH3-SCR) using Cu zeolites is a well-established strategy for the abatement of NOx gases. Recent studies have demonstrated that Cu is particularly active when exchanged into the SSZ-13 zeolite, and its location in ...
Andrew M. Beale, Andy Van Yperen-De Deyne, David S. Wragg, Ines Lezcano-Gonzalez, Karen Hemelsoet, Michel Waroquier, Mingos D. M. P., Veronique Van Speybroeck, Wojciech A. Slawinski   +8 more
core   +2 more sources

Microbial protein out of thin air : fixation of nitrogen gas by an autotrophic hydrogen-oxidizing bacterial enrichment [PDF]

, 2020
For the production of edible microbial protein (MP), ammonia generated by the Haber-Bosch process or reclaimed ammonia from waste streams is typically considered as the nitrogen source.
Bernaerts, Kristel, Boeckx, Pascal, Boon, Nico, Clauwaert, Peter, Ghesquiere, Justien, Hu, Xiaona, Kerckhof, Frederiek-Maarten   +6 more
core   +2 more sources

Laser‐Assisted Processing and Modification of Bioactive Glasses: A Review

Advanced Healthcare Materials, EarlyView.
Laser technologies provide powerful tools to process and transform bioactive glasses for advanced biomedical applications. This review discusses laser‐matter interaction mechanisms, laser surface engineering, and laser‐assisted fabrication of scaffolds and nanofibers.
Antonio Riveiro, Mario González‐Quintas, Mónica Fernández‐Arias, Jesús del Val, Félix Quintero, Rafael Comesaña, Fernando Lusquiños, Julian R. Jones, Juan Pou   +8 more
wiley   +1 more source

Ammonia oxidizers offset acidification stress via adaptive substrate affinity in aquatic ecosystems

Nature Communications
Ammonia oxidation, a critical nitrogen cycle process, exhibits contradictory responses to aquatic acidification, and the underlying mechanism remains unresolved. Here, through pH manipulation experiments across diverse ecosystems and with a model ammonia-
Senwei Tong, Hui Shen, Li-Li Han, Jin-Ming Tang, Xianhui S. Wan, Zhen-Zhen Zheng, Shuh-Ji Kao   +6 more
doaj   +1 more source