Results 71 to 80 of about 1,411,542 (193)

Light‐Synergistic Enhanced Synaptic Devices Toward Superadditive In‐Sensor Computing

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Conventional neuromorphic devices face challenges in achieving efficient integration of light sensing and synaptic computation because of structural and material limitations. In this work, we developed an indium‐tin‐zinc oxide/transparent gelatin electrolyte synaptic transistor incorporating rare metal indium.
Wei Zhong   +16 more
wiley   +1 more source

土壤水分遥感监测研究

open access: yes, 2006
该项研究利用陆地卫星TM数据和气象卫星AVHRR数据分别建立了土壤水分监测模型,并建立了计算机分析系统,可适时完成大面积土壤水分宏观监测,并输出土壤水分分布图,对指导农业生产、灌溉管理具有现实意义,而且能估测草地土壤湿度,对草地产草量估测,确定存栏头数,指标牧业生产也有现实意义。在夏季,可利用该成果监测雪线下缘土壤湿度变化速率,用于预报融雪型洪水。该项研究首创"光学植被盖度"新概念,与通常的"植被盖度"概念比较,更能准确估算掩盖土壤水分光谱信息面的大小;便于动用分解象元法提取土壤水分信息 ...
刘培君等
core  

Synergistic Grain Refinement and Crystal Plane Reconstruction via Shot‐Peening for Highly Reversible Zn Anodes

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Aqueous Zn‐ion batteries (AZIBs) are expected to become one of the most promising candidates for large‐scale energy storage, but are impeded by uncontrollable dendrite growth and parasitic reactions. In this study, we propose a simple mechanical shot‐peening (SP) approach for restructuring commercial Zn foils into highly exposed (002)‐textured
Xu Ma   +7 more
wiley   +1 more source

Co‐Optimization of Mechanical Performance and Osseointegration of Titanium‐Based Composites via a Novel Microwave‐Driven Boronization Strategy

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT The use of Ti6Al4V alloy in dental implantation is constrained by its high elastic modulus and biological inertness, which lead to delayed osseointegration and a high failure risk. Additionally, its chemical incompatibility with hydroxyapatite (HA) impedes the development of stable bioactive composites.
Shangyong Zuo   +8 more
wiley   +1 more source

土—根系统中的水分动力学

open access: yes, 1988
本项研究以当前国际土壤物理学界有关土—根系统中的水分动力学尚未解决或尚未较完满回答的问题为主要研究内容,提出具有显著优势的非饱和土壤水分基本运动参数的推求和测定的新方法;解决了检验不同方法测定土壤水分运动参数的准确性和实用性客观标准问题;根系吸收土壤水分数学模式的完善;土壤水分有效性动力学概念的科学创造;土——根系统中水分运动其水流阻力、能量分布转换、时空累积效应完整系统的论述。同时研究解决了美国著名土壤物理学家MOIZ教授提出而未解决的有效密度的物理基础这一土 ...
邵明安
core  

Self‐Regulated Surface Reconstruction of Fe Modified Nickel Tellurium Oxides Enabling Highly Efficient and Durable Oxygen Evolution

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Improving the efficiency and stability of oxygen evolution electrocatalysts remains essential for advancing water splitting technologies. Although in situ surface reconstruction into active phases is desirable, it often leads to uncontrolled structural degradation.
Beirong Ye   +11 more
wiley   +1 more source

水分胁迫条件下绿洲农田冬小麦水分运移规律研究

open access: yesShuitu Baochi Xuebao, 2004
以干旱区绿洲农田冬小麦水分胁迫试验为基础,研究了不同水分胁迫条件下的冬小麦生长发育、水分利用以及土壤水分运动特征,建立了含有根系吸水项的一维土壤水动力学模型,模拟了不同水分胁迫条件下冬小麦蒸腾、棵间蒸发、根系吸水、根系生长以及田间土壤水分运移过程。结果表明:在冬小麦生育前期、中期根系吸水主要在80cm以上,生育后期根系对下层土壤水分吸收量增加,但所占比例很小。根据实测根系生长资料分析水分胁迫下生育中期根系受到水分胁迫,在生育后期恢复灌水后根系早衰,生长缓慢 ...
盛钰 赵成义 蒋平安 贾宏涛
doaj   +2 more sources

黄土高原水蚀风蚀复合区人工植被土壤水分状况

open access: yesShuitu Baochi Xuebao, 2008
采用烘干法及WP4水势仪对黄土高原水蚀风蚀复合区人工林下土壤重量含水量及水势进行测定,从土壤水分数量和能量两方面分析该区土壤水分时空分布和动态变化特征,并且通过实测数据对不同树种土壤水分特征曲线进行拟合,旨在为该区今后植被建设及生态用水提供理论参考。结果表明,各树种在0-300 cm土层土壤含水量随深度增加而逐渐降低,并趋于稳定。0-30 cm土层土壤含水量变化剧烈,30 cm以下土层土壤含水量逐渐降低,并趋于稳定在3.00%~5.00%。土壤水分受降雨量及其分配影响显著,观测期内土壤储水量盈余26.7
周海光   +4 more
doaj  

Lignin‐Derived Carbon Quantum Dots as Hole‐Trapping Promoters in LCDs/Bi‐MOF/ZIS With S‐Scheme Heterojunction for Efficient Photocatalytic Hydrogen Peroxide Production in Pure Water

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Photocatalytic hydrogen peroxide (H2O2) production from water and oxygen driven by solar energy represents a highly promising green and sustainable strategy. Herein, lignin‐derived carbon quantum dots (LCDs) were strategically introduced at the heterojunction between a Bi‐based metal organic framework (Bi‐MOF) and ZnIn2S4 (ZIS).
Wanpeng Sun   +8 more
wiley   +1 more source

不同土壤容重条件下水分亏缺对作物生长和水分利用的影响

open access: yesShuitu Baochi Xuebao, 2019
为探究不同土壤容重和不同程度水分亏缺条件下冬小麦-夏玉米生长指标及产量的变化。采用桶栽土培法,分别设置3种土壤容重(1.2,1.4,1.6 g/cm3)和3个土壤水分控制下限(低水分50%田间持水量、中水分60%田间持水量和高水分70%田间持水量),研究不同土壤容重和水分亏缺对冬小麦-夏玉米根系、生长指标、耗水量、产量和水分利用的影响。结果表明:随水分亏缺程度的加剧,冬小麦和夏玉米生长指标、生物量、耗水量和产量均呈降低趋势。随土壤容重增加,冬小麦生物量和产量呈先升高再降低的趋势 ...
刘战东   +10 more
doaj  

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