Results 21 to 30 of about 5,613,628 (133)

完全活性污泥法处理含海水污水的基质降解动力学研究

open access: yesGongye shui chuli, 2000
作者采用完全混合活性污泥法研究了大生活用海水进入城市污水系统后,不同海水盐度下污水的基质降解动力学。得出了污水中分别含 12 %、24 %和 36%海水时的基质降解速率常数和基质降解动力学模型。随着污水中海水比例的增大,基质降解速率常数逐渐变小。
张雨山, 王静, 徐梅生
doaj   +2 more sources

Effects of climate change on marine biodiversity on the western Atlantic coast

open access: yesConservation Biology, EarlyView.
Abstract The current climate crisis, driven by greenhouse gas emissions, threatens global biodiversity, including that in marine ecosystems. However, projections for the western Atlantic Ocean that jointly quantify species richness and endemism while accounting for spatially biased and incomplete occurrence data remain limited.
Ubirajara Oliveira   +33 more
wiley   +1 more source

Engineering 1T‐MoS2‐Integrated Bimetallic Sulfide Heterostructure on Nickel Foam for Enhanced Alkaline Water/Seawater Splitting

open access: yesRare Metals, Volume 45, Issue 11, November 2026.
ABSTRACT The heterostructured 1T‐MoS2‐based bimetallic sulfides are promising bifunctional electrocatalysts for alkaline overall water splitting. However, the controllable synthesis of these catalysts is hindered by the ready conversion of Mo species to 2H‐MoS2 and the tedious heterostructure engineering during sulfidation.
Zijian Zhao   +8 more
wiley   +1 more source

GHK‐Cu Delays Aging Through the Repair of Mitochondrial Dysfunction

open access: yesRare Metals, Volume 45, Issue 11, November 2026.
ABSTRACT Althugh glycyl‐L‐histidyl‐L‐lysine copper (GHK‐Cu) shows antiaging potential, its precise molecular mechanisms remain unclear. Using Caenorhabditis elegans (C. elegans) as an in vivo aging model, we observed that GHK‐Cu extended organismal lifespan and improved stress resilience.
Haoquan Yu   +8 more
wiley   +1 more source

Synergistic Electronic Modulation of 1T/2H Mixed‐Phase MoS2 via Phosphorus Insertion and Carbon Coating for Enhanced Acidic Hydrogen Evolution Kinetics

open access: yesRare Metals, Volume 45, Issue 11, November 2026.
ABSTRACT MoS2 is considered a promising electrocatalyst for the hydrogen evolution reaction (HER) because of its low cost and excellent stability. However, its practical application is severely limited by the scarcity of edge active sites and poor intrinsic electrical conductivity.
Ting Wang   +6 more
wiley   +1 more source

金属胶束研究Ⅳ——吡啶类Zn(Ⅱ)和Ni(Ⅱ)配合物对PNPP水解的影响

open access: yes四川大学学报. 自然科学版, 1999
运用金属胶束催化的三元复合物动力学模型,研究了吡啶类Zn(Ⅱ)和Ni(Ⅱ)配合物在CTAB存在下对PNPP水解的影响,得到了PNPP水解反应的动力学及热力学参数(k′N,kT,kM),定量地讨论了pH值对PNPP水解反应的影响,得到了金属胶束相中PNPP水解的动力学参数(kN).结果表明吡啶类Zn(Ⅱ)和Ni(Ⅱ)配合物对PNPP水解的催化作用达60~103倍,且Ni(Ⅱ)配合物的催化作用比Zn(Ⅱ)配合物大 ...
肖淑兴   +4 more
doaj  

Oxygen Vacancy‐Engineered CoFeMo‐LDHs Enables Dual‐Reaction Pathway Synergistic Enhancement of Nanozyme Activity for Intelligent Colorimetric Sensing

open access: yesRare Metals, Volume 45, Issue 11, November 2026.
ABSTRACT Defect engineering plays a crucial role in regulating the active sites and reaction pathways of nanozymes. In this work, oxygen vacancies (Vo) were successfully introduced and stably regulated in ternary CoFeMo layered double hydroxide (CFM LDHs) via a microwave‐assisted hydrothermal strategy, leading to the construction of oxygen‐vacancy‐rich
Min An   +8 more
wiley   +1 more source

试论初生侵蚀性坡面薄层水流的基本动力特性

open access: yesShuitu Baochi Xuebao, 1995
从水力学与泥沙运动力学观点,对初生态侵蚀性坡面薄层水流的基本动力特性,如流产;充态、临界水深、阻力系数等几个基本问题,作了半理论性探讨。
沙际德 蒋允静
doaj  

Decorating Graphite Felt Electrode With Uniformly M‐Nx Functionalized Carbon Nanosheets for High‐Performance Vanadium Redox Flow Batteries

open access: yesRare Metals, Volume 45, Issue 11, November 2026.
ABSTRACT Vanadium redox flow batteries show considerable promise for energy storage, yet their overall performance is still hindered by the limited electrochemical activity of graphite felt (GF) electrodes. Herein, using folic acid and metal salts as precursors, M–N–C functionalized carbon nanosheets (M–NC, M=Co, Fe, and Ni) were prepared via a ...
Long Jiang   +7 more
wiley   +1 more source

坡面径流的水动力学特性研究进展

open access: yesShuitu Baochi Xuebao, 2002
坡面径流不同于一般明渠水流,具有独特的水力学特性。详细论述了坡面径流产流理论、运动方程和水动力学特性等方面的研究进展情况,系统阐述了国内外对坡面径流的流态、流速测量和分析、水深确定、阻力表达以及径流分离挟沙能力等水动力学要素的研究,目的在于总结以往的研究经验和成果,促进相关研究的进一步发展。
郑良勇 李占斌 李鹏
doaj  

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