Results 11 to 20 of about 8,470 (122)

生物炭对滨海盐渍土理化性质及玉米幼苗抗氧化系统的影响

open access: yesShuitu Baochi Xuebao, 2019
以黄河三角洲典型盐化潮土为供试土壤,设置12.5,25.0,50.0,100 g/kg 4个梯度生物炭添加量,通过盆栽试验研究不同添加量下生物炭对滨海盐渍土理化性质及玉米幼苗抗氧化系统的影响。结果表明:(1)与对照相比,随着生物炭添加量的增加,盐渍土的电导率、速效磷、速效钾、阳离子交换量及易氧化有机碳的含量呈现显著增加的趋势;不同生物炭添加量下,盐渍土的pH、碱解氮含量略有下降,但各添加量处理间差异不显著;而生物炭对盐渍土可交换态钠含量无显著影响。(2)添加适量生物炭(12.5,25.0,50.0 g ...
赵铁民   +5 more
doaj  

NIR‐Responsive Nano‐Integrated Magnesium Phosphate Cement Promotes Bone Regeneration via Osteoblast‐Exosome‐Osteoclast Crosstalk

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT The limited osteogenic capacity of magnesium phosphate cement (MPC) has constrained its biomedical applications, underscoring the necessity to develop MPC with enhanced physical properties and bone‐forming capabilities. In this study, a multifunctional MPC system was developed by incorporating zoledronic acid‐loaded near‐infrared (NIR ...
Bin Wang   +8 more
wiley   +1 more source

Multi‐Scale Rational Design and Synergistic Strategies of Nanozymes for Targeting Drug‐Resistant Pathogens

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT The escalating issue of drug‐resistant pathogens, largely driven by the overuse of conventional antibiotics, has become a significant global health threat. Developing alternative therapeutic strategies and fabricating natural biological enzyme materials that mimic the high efficiency, selectivity, and mild‐operating conditions of natural ...
Shuai He   +11 more
wiley   +1 more source

探究两步烧结工艺下微米级粉料的氧化锌电阻片的微观结构及电性能

open access: yesDianci bileiqi, 2021
笔者以微米级粉体为原料,采用两步烧结法制备氧化锌电阻片,系统地研究了各烧结条件下氧化锌电阻片的微观结构,致密化程度,基本电性能和介电性能,包括阻抗谱和介电损耗谱。结果表明,两步烧结能有效地减小晶粒尺寸,使晶粒分布均匀,增强致密化。在合适的两步烧结曲线下,其样品的电压梯度为402.26 V/mm,漏电流为0.98μA/cm2,非线性系数为60.88。两步烧结样品在低温下介电损耗的两个驰豫峰对应的活化能为0.22~0.24 eV和0.34~0.37 eV,传统烧结样品对应的活化能为0.24 eV和0.32 ...
方针   +5 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

高矿化度油田水系统杀菌除氧剂的复配研究

open access: yesGongye shui chuli, 2022
研制了一种由混合氨基酸络合铜、双癸基二甲基氯化铵(DDAC)和D-异抗坏血酸钠复配的杀菌除氧剂,应用于油田水系统。研究了此杀菌除氧剂在高矿化度油田模拟水质下的杀菌和除氧性能。杀菌性能测试表明,复配试剂对油田常见的SRB、TGB和IB这3种细菌都具有很好的灭杀效果,附着型垢层细菌的杀菌率在98%以上,游离型细菌的杀菌率在99%以上。该试剂在40~80 ℃温度区间能达到98%以上的垢层杀菌率,且能实现12 h内的高效快速杀菌。除氧测试表明,复配试剂在温度为30~70 ℃或pH为6~10的范围内 ...
姚彬   +4 more
doaj  

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

open access: yesVeterinary Dermatology, Volume 36, Issue 3, Page 234-282, June 2025.
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  

Plant–microbe interactions drive the rhizosphere microbial assembly and nitrogen cycling in a subtropical forest

open access: yesFunctional Ecology, Volume 39, Issue 5, Page 1274-1287, May 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Interactions between plants and soil microorganisms in the rhizosphere are vital for maintaining the nutrient cycle and stability of terrestrial ecosystems. Nitrogen, closely related to carbon (C) cycling and ecosystem productivity, undergoes transformation by soil ...
Ru Wang   +9 more
wiley   +1 more source

可用于电力系统电压在线测量的氧化锌避雷器及其阻抗变换系统

open access: yesDianci bileiqi
针对电力系统电压在线测量存在的问题,提出一种可用于电力系统电压在线测量的氧化锌避雷器及其阻抗变换系统。在建立了等效电路模型与评价体系的基础上,开展了多参量联合作用下的基于氧化锌避雷器的线性分压器的频率特性仿真,揭示了电压幅值、输入阻抗与分压器有效带宽间的作用关系;探究了非理想源下避雷器负载效应对分压器测量性能的影响,研究结果表明,当电压超过U1mA后会造成一次侧(高压臂)电压畸变,若将氧化锌避雷器用于常规电压测量,应控制工作电压低于U1mA,若将氧化锌避雷器用于过电压监测,由于配合原则 ...
肖昕岩   +4 more
doaj   +2 more sources

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