Results 1 to 10 of about 1,150 (68)

Layering Action Situations to Integrate Spatial Scales, Resource Linkages, and Change over Time: The Case of Groundwater Management in Agricultural Hubs in Germany

open access: yesPolicy Studies Journal, Volume 50, Issue 1, Page 111-142, February 2022., 2022
This paper contributes to the integration of the study of multiple (i) spatial scales, (ii) resource systems, and (iii) points in time in natural resource governance by introducing a strategy of layering action situations. In the Institutional Analysis and Development Framework, action situations can be studied singularly, in comparison, or as networks
Malte Möck   +3 more
wiley   +1 more source

低温同步短程硝化反硝化可行性研究

open access: yesGongye shui chuli, 2022
为了解决市政废水生物脱氮过程中碳源不足的问题,利用多循环序批式反应器(MCSBR)建立了基于混合生物膜和悬浮污泥的主流同步短程硝化反硝化工艺。重点考察了温度对生物膜、悬浮污泥短程硝化和反硝化效果的影响,并分析了低温条件下同步短程硝化反硝化的可行性。周期实验结果表明,在好氧阶段,NO2--N无显著上升,而总氮明显下降,且无明显的NO3--N积累,说明MCSBR内发生了同步短程硝化反硝化。随着温度的降低,氨氧化和反硝化容积负荷均呈下降趋势,但混合体系氨氧化活性始终低于其反硝化活性 ...
张郅昊   +6 more
doaj  

A Domain‐Specific Terminology for Retinopathy of Prematurity and Its Applications in Clinical Settings

open access: yesJournal of Healthcare Engineering, Volume 2018, Issue 1, 2018., 2018
A terminology (or coding system) is a formal set of controlled vocabulary in a specific domain. With a well‐defined terminology, each concept in the target domain is assigned with a unique code, which can be identified and processed across different medical systems in an unambiguous way.
Yinsheng Zhang   +2 more
wiley   +1 more source

Targeting FASN in Breast Cancer and the Discovery of Promising Inhibitors from Natural Products Derived from Traditional Chinese Medicine

open access: yesEvidence-Based Complementary and Alternative Medicine, Volume 2014, Issue 1, 2014., 2014
Molecular targeted therapy has been developed for cancer chemoprevention and treatment. Cancer cells process a fundamental change in its bioenergetic metabolism from normal cells on an altered lipid metabolism, also known as the de novo fatty acid synthesis, for sustaining their high proliferation rates.
Chien-shan Cheng   +3 more
wiley   +1 more source

Synergetic Ruthenium Clusters and Ligand Motifs in Insoluble Polyoxometalates for Efficient Urea Electrosynthesis

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT The electrocatalytic co‐reduction of CO2 and nitrate (NO3− ${\text{NO}}_{3}^{-}$) to synthesize urea presents a sustainable alternative to traditional industrial processes, yet its efficiency is fundamentally limited by the kinetically mismatched activation and coupling of CO2 and NO3− ${\text{NO}}_{3}^{-}$.
Jiayu Liu   +9 more
wiley   +1 more source

Cobalt‐Based Metal Hybrid Encapsulated Micro‐Aluminum for Tailoring Combustion in Composite Solid Propellants

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT To address the issues of aluminum (Al) powder agglomeration during combustion and low oxidizer decomposition efficiency in composite solid propellants, this study utilized in situ self‐assembly technology to prepare cobalt‐based hybrid‐coated modified Al powder (Al@CZ).
Chong Chen   +11 more
wiley   +1 more source

Leakage Current Dominated Piezocatalysis by Na(AlSi2O6)H2O Nanobelts: Highly Efficient U(VI) Solidification and N2 Conversion

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Piezocatalysis has garnered unprecedented research enthusiasm for applications in energy and environmental fields, as it can harvest the tiny vibration energy from the natural environment and convert it into electrical energy to drive catalytic reactions.
Feixue Gao   +9 more
wiley   +1 more source

硫/铁硫化物自养反硝化脱氮除磷研究进展

open access: yesGongye shui chuli, 2022
二级出水中的氮、磷浓度虽较低,但污水排放量大,是造成水体富营养化的原因之一;且二级出水的碳氮比低,采用传统反硝化工艺无法达到脱氮除磷的需求。利用硫/铁硫化物自养反硝化深度处理污水是有必要的。阐述了自养反硝化菌利用硫/铁硫化物进行反硝化脱氮除磷的基本原理,以及反硝化菌用铁硫化物作电子供体的反应途径,论述了水力停留时间(HRT)、温度、pH对硫/铁硫化物自养反硝化过程的影响。研究表明:增加HRT可以提高硫/铁硫化物自养反硝化对氮、磷的去除率;反硝化菌群属于嗜温性菌,温度低于20 ℃明显抑制反硝化速率 ...
魏秋   +5 more
doaj  

Band Edge Reorganization via Symmetry Constraints in Covalent Bonding Heterojunctions Boosts Photocatalytic Metronidazole Degradation

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT The covalent bonds at heterojunction interfaces enable more efficient charge carrier separation than traditional weakly coupled heterojunctions, with enhanced photocatalytic performance for organic wastewater purification. The interfacial covalent bonds drive energy band reorganization, rendering the conventional independent band edge ...
Jing‐Yu Ren   +5 more
wiley   +1 more source

添加零价铁的反硝化系统中发生的主要反应

open access: yesGongye shui chuli, 2021
分别采用零价铁、反硝化污泥及零价铁+反硝化污泥的系统处理含NO3--N的废水,探讨零价铁的添加对反硝化系统脱氮效果的影响及系统中发生的主要反应。结果表明,零价铁系统对废水中的NO3--N无去除效果;当零价铁+反硝化污泥系统对废水中NO3--N的去除率达到100%时,反硝化污泥系统对废水中的NO3--N去除率仅为60.1%。零价铁+反硝化污泥系统中主要发生零价铁参与的氧化还原反应及微生物参与的生物反硝化反应。
杨燕, 朱静平
doaj  

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