Results 21 to 30 of about 4,244,961 (164)

Constructing a Favorable Microenvironment for Robust Hydrogen Storage in MgH2 Through Synergistic Cooperation With Mn and Mg2Ni

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Weakening the electrostatic attraction between Mg2+ ions and H− ions in MgH2 is vital for improving the kinetic performance of MgH2 for hydrogen storage. Herein, a multivalent microenvironment is synergistically created by Mn and Mg2Ni to break the stable structure of MgH2, enabling rapid and stable de/hydrogenation performance.
Ya‐Ke Wu   +7 more
wiley   +1 more source

Lithology modulates soil priming effect via resource limitations and bacterial community structure

open access: yesFunctional Ecology, Volume 40, Issue 1, Page 176-190, January 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The soil priming effect (PE), triggered by root exudate inputs that stimulates microbial activity and drives significant soil carbon (C) losses in terrestrial ecosystems.
Xinyu Hou   +4 more
wiley   +1 more source

Allometric Scaling in Environmental DNA Concentration of Japanese Eel Anguilla japonica Confirmed Under Laboratory and Natural Conditions 日本鳗 (Anguilla japonica) 环境 DNA 浓度中的异速生长标度在实验室和自然条件下得到证实

open access: yesIntegrative Conservation, Volume 4, Issue 4, Page 675-685, December 2025.
We demonstrated that Anguilla japonica eDNA concentration was allometrically scaled with their body size in both the laboratory and riverine environments. Integrating body size allometry has the potential to improve population abundance estimates in the field, whereas further clarification is required for understanding eDNA production mechanisms ...
Toshiaki S. Jo   +2 more
wiley   +1 more source

Use of saline‐soaked bacterial culture swabs increases bacterial recovery in dogs with superficial bacterial folliculitis

open access: yesVeterinary Dermatology, Volume 36, Issue 5, Page 621-629, October 2025.
Background – Canine superficial bacterial folliculitis (SBF) is a common recurrent condition with a growing requirement for culture and susceptibility as a consequence of increased antimicrobial resistance and antimicrobial stewardship. Different opinions persist about the ideal technique for culture sample acquisition, which varies with lesion ...
Jason B. Pieper   +3 more
wiley   +1 more source

电化学氯化降解养猪废水生化出水氨氮的过程分析

open access: yesGongye shui chuli, 2020
采用自组装电化学氯化装置处理养猪废水生化出水,考察了废水氨氮的降解历程。因素影响分析表明,随着氯离子投加量的增加(0~2 000 mg/L),氨氮平均去除速率逐渐上升(0.044~2.502 mg/min);当氯离子质量浓度为1 000 mg/L,初始pH=9时,氨氮最大去除率达98%以上仅需90 min。电化学氯化脱氮过程表明,氨氮降解主要依靠间接氧化,即活性氯与氨氮作用生成氯胺、氯胺转化为氮气2个阶段;体系脱氮过程符合零级反应动力学。
姚梦   +6 more
doaj  

Synopsis of the antimicrobial use guidelines for canine pyoderma by the International Society for Companion Animal Infectious Diseases (ISCAID)

open access: yesVeterinary Dermatology, Volume 36, Issue 5, Page 552-565, October 2025.
Abstract Background Canine pyoderma is one of the most common presentations in small animal practice, frequently leading to antimicrobial prescribing. Objectives To provide clinicians with antimicrobial treatment guidelines for staphylococcal pyoderma, including those involving meticillin‐resistant staphylococci.
Anette Loeffler   +9 more
wiley   +1 more source

河流疏浚底泥余水的固定化微生物处理技术

open access: yesGongye shui chuli, 2023
河道疏浚底泥在工业化处理过程中会产生大量余水,其含有较高浓度的氨氮、总氮、化学需氧量(CODCr)以及重金属等有害物质,如不对其进行有效处理,将会对受纳水体造成严重污染。采用固定化微生物技术,设计了处理量50 t/d的多级接触氧化装置,对疏浚底泥余水进行处理。结果表明,该工艺对氨氮和总氮的去除率可分别达到91.21%和59.00%,出水可满足地表水准Ⅳ类标准。基于分子生物学方法研究了多级接触氧化装置中功能微生物的丰度和群落多样性,结果表明反硝化功能基因narG、napA、nirS、cnorB ...
王献昆   +8 more
doaj  

COD分析废液的处理及无汞COD分析方法研究近况

open access: yesGongye shui chuli, 1985
一、前言化学需氧量(COD)是水和废水分析中广泛应用的污染监测指标,常采用重铬酸钾回流滴定法测定。标准分析方法中为使分析结果精密、准确,需以银为催化剂 ...
辛世崇
doaj  

工业废水计算机自动检测仪

open access: yesGongye shui chuli, 1999
介绍了计算机在工业废水化学需氧量自动检测中的应用,阐述了仪器的工作原理及工作过程,重点分析了微机系统的软、硬件设计。使用结果表明,在工业废水化学需氧量的检测中引入计算机,可将以人工为主的、误差较大的检测方式变为较精确的自动检测。尤其是采用了在线检测手段,检测结果能如实地反映出工业废水排放的实际情况。该仪器既适用于企业废水排放监测,也适用于废水处理工程现场的连续监测。
丁则信
doaj  

铂.钯/氧化钛脱氧催化剂

open access: yes, 1986
铂、钯/氧化钛催化剂是用于普氢、氮气脱氧制取超纯氢、氮气的催化剂.本发明的特征是采用N型半导体二氧化钛作催化剂的载体,其贵金属含量A:铂:0.1~5.0%或B:铂、钯0.1~5.0%(重量比).前者更适用于普氮净化,后者常用于普氢净化.两者空速钧为10000~30000小时-1,成品气的残氧含量在20ppb~0.2ppm.与已知脱氧催化剂比较,本发明具有催化活性好,脱氧深度深,单位时间处理量大,无需活化和再生等特点 ...
张俊香   +6 more
core  

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