Results 51 to 60 of about 199,436 (289)

Aeration and De-Aeration at Bottom Aeration Devices on Spillways [PDF]

, 1994
Aeration devices are introduced along chute spillways and at bottom outlets to prevent cavitation damage in high velocity flows. Bottom aerators are characterised by large quantities of air entrained along the jet interfaces but also by a strong de ...
Chanson, Hubert
core   +1 more source

Systematically Engineering for Efficient Production of 3‐Methyl‐1‐Butanol in Escherichia coli

Advanced Science, EarlyView.
An integrated metabolic engineering strategy was established for high‐level 3‐methyl‐1‐butanol biosynthesis in Escherichia coli. Molecular dynamics‐guided semi‐rational engineering of dihydroxyacid dehydratase uncovered and relieved key catalytic bottlenecks, while adaptive laboratory evolution enhanced strain robustness.
Nanfei Geng, Hao Liu, Haolin Han, Meng Meng, Shaojie Wang, Tianwei Tan, Haijia Su   +6 more
wiley   +1 more source

Effects of Nitrogen Input and Aeration on Greenhouse Gas Emissions and Pollutants in Agricultural Drainage Ditches

Agronomy
Understanding the patterns of greenhouse gas emissions and the changes in pollution load in terrestrial freshwater systems is crucial for accurately assessing the global carbon cycle and overall greenhouse gas emissions.
Qisen Zhang, Jingwei Wu, Chenyao Guo, Jing Wang, Yanchao Zhao, Qiangkun Li, Yawei Hu   +6 more
doaj   +1 more source

Removal of radionuclides from Estonian groundwater using aeration, oxidation, and filtration; pp. 58–64 [PDF]

Proceedings of the Estonian Academy of Sciences, 2012
Groundwater in the north-eastern suburb of Tallinn was analysed to determine the content of iron, manganese, sulphides, ammonia, and radionuclides (Ra226, Ra228) and total radioactivity. It was established that for several wells of the Cambrian–Vendian
Liie Lumiste, Rein Munter, Johannes Sutt, Tiit Kivimäe, Toivo Eensalu   +4 more
doaj   +1 more source

Impact of different electrodes, mediators, and microbial cultures on wastewater treatment and power generation in the microbial desalination cell (MDC)

Water Science and Technology, 2023
Microbial desalination cell (MDC) can treat wastewater and saline water simultaneously and generate power. The aim of the present research work was to identify the critical factors influencing COD reduction and power generation from the MDC reactor and ...
Shobhan Majumder, Istalingamurthy D., Sadashiva Murthy B. M., Prakash B. M.   +3 more
doaj   +1 more source

Is the critical Shields stress for incipient sediment motion dependent on channel-bed slope? [PDF]

, 2008
Data from laboratory flumes and natural streams show that the critical Shields stress for initial sediment motion increases with channel slope, which indicates that particles of the same size are more stable on steeper slopes.
Dietrich, William E., Lamb, Michael P., Venditti, Jeremy G.   +2 more
core   +1 more source

Advanced Corneal Hydrogels: From Passive Replacement to Active Regeneration and Intelligent Interaction

Advanced Science, EarlyView.
This review charts the evolution of corneal hydrogels from passive replacements to active and intelligent systems, evaluating natural and synthetic materials while addressing design challenges such as transparency and strength. Advanced applications such as scarless wound healing, three‐dimensional bioprinting, and smart wearables are highlighted to ...
Xinwei Wang, Wen Zhou, Haotian Xue, Wenjun Xue, Guangping Gao, Bing Zhu, Hongyuan Song, Qingqiang Xu, Jing Zhao, Wei Shen   +9 more
wiley   +1 more source

Analysis of the Effect of Cut Sweep Ratio of Lily Impeller on the Distribution of Dissolved Oxygen

Fluids
The aquaculture industry encounters substantial obstacles, including organic pollution, oxygen insufficiency, and elevated levels of ammonia and carbon dioxide.
Mohammad Tauviqirrahman, Eflita Yohana, Jourdy Cakranegara, Jamari, Budi Setiyana   +4 more
doaj   +1 more source

Intervalo hídrico ótimo no perfil explorado pelas raízes de feijoeiro em um latossolo sob diferentes níveis de compactação Least limiting water range in an oxisol profile penetrated by common bean roots under different compaction levels

Revista Brasileira de Ciência do Solo, 2009
O intervalo hídrico ótimo (IHO) é integrador dos fatores de crescimento das plantas, e a densidade crítica obtida é um indicativo da qualidade estrutural do solo. O objetivo deste trabalho foi determinar o IHO em um Latossolo argiloso.
Douglas Rodrigo Kaiser, Dalvan José Reinert, José Miguel Reichert, Gilberto Loguércio Collares, Marcelo Kunz   +4 more
doaj   +1 more source

Food-grade Pickering stabilisation of foams by in situ hydrophobisation of calcium carbonate particles [PDF]

, 2016
© 2016 Elsevier Ltd The aim of this study was to investigate the possibility of stabilising foam bubbles in water by adsorption of calcium carbonate (CaCO 3 ) particles.
Binks, Bernard P., Koman, Henriëtte, Muijlwijk, Kelly, Poortinga, Albert T.   +3 more
core   +1 more source