Results 31 to 40 of about 9,766 (163)
Effects of Micro-topography Modification on Soil Moisture Dynamics in Cold and Arid Mining Areas of Southern Piedmont of Tianshan Mountain [PDF]
, 2023 [Objective] The effects of spatial and temporal dynamics of soil moisture on micro-topography modification (0—50 cm) were determined in order to provide a scientific basis and theoretical support for land reclamation and ecosystem reconstruction in cold ...
Lai Chengyun +5 more
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT In this study, a newly developed seeded electromagnetic confinement directional solidification (EMCDS) technique was employed to fabricate large‐scale TiAl single crystal ingots with a diameter of 32 mm, overcoming the long‐standing size limitations that have hindered their industrial application.
Wei Wang +9 more
wiley +1 more source
In Situ Formation of the Li3Bi Alloy Phase Interface for Robust Garnet Solid‐State Lithium Batteries
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Garnet‐type electrolyte Li6.4La3Zr1.4Ta0.6O12 (LLZTO) is a promising component for commercializing solid‐state batteries owing to its wide electrochemical window, good stability, and high shear modulus. However, poor interface wettability and lithium dendrite growth limit the practical application of the LLZTO electrolyte.
Pengfei You +8 more
wiley +1 more source
Shuitu Baochi Xuebao, 2021 植被净初级生产力（NPP）是陆地生态系统碳循环过程中的重要组成部分，也是评价碳源/汇的重要环节。基于2001—2019年MODIS地表反射率数据（MOD09A1）、气温和日照时间资料，利用光能利用率模型估算了吉林省陆地生态系统NPP，采用趋势分析、空间变异性分析等方法，分析了吉林省陆地生态系统NPP的时空变化特征及其与气候因子的相关性。结果表明：（1）2001—2019年，吉林省植被NPP年均值与总量均成波动上升趋势，辖区内植被NPP总量表现为森林>农田>草地。（2）2001 ...
严俊霞 +4 more
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Characteristics of Air-Sea Exchange of CO2 in the Arctic and Antarctic Regions as well as their Relative Oceanography [PDF]
, 2002 本研究利用1999年中国首次北极科学考察、以及1999－2000年度的中国第16次南极科学考察机会对沿途航线上全球纬度范围的海区的海-气交换进行了的详细的调查，描绘了大气及表层海水CO2分压（pCO2）的全球纬度特征及其在不同海区之间的差异，并着重研究了南大洋及北冰洋的表层海水CO2分压（pCO2）的分布特征，讨论并揭示其所代表海洋学问题及意义。文章讨论了各海区CO2分压（pCO2）与表层海水温度（SST）、水文物理过程影响及生物吸收等因素的相关关系，研究控制pCO2变化的主要调控因子。并利用这些关系 ...
高众勇
core
Bioinspired 3D‐Printed NiTi Metamaterials With Bivalve‐Like Crossed‐Lamellar Structures
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Metamaterials demonstrate unique mechanical properties and functional performance owing to their distinctive topological spatial structures. In this study, by mimicking the natural Saxidomus purpuratus shell, bioinspired crossed‐lamellar architectures with interlamellar apex angles ranging from 60° to 150° were designed and fabricated in NiTi ...
Yu Chen +9 more
wiley +1 more source
Shuitu Baochi Xuebao, 2008 土壤含水率在水平和垂直方向上均具有高度的时空异质性,关于水平方向变异的研究取得了很大进展,而对垂直方向变异的研究较为缺乏。为掌握土壤含水率在剖面上的垂直变异特征,采用经典统计、地统计及分形分析相结合的方法,研究了黄土高原典型坡地剖面土壤含水率的时空变异性。结果表明:不同测定时间下的剖面土壤含水率均服从自然对数正态分布,在空间上均表现为中等变异性,沿土层深度方向的变化趋势均为增长型,且这种变化规律具有时间稳定性;剖面土壤含水率在整个研究区域尺度、微尺度上的半方差函数均可用指数模型进行很好地拟合 ...
王云强, 张兴昌
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Response of Chlorophyll a Concentrations to Multi-scale Environmental Variations in the Taiwan Strait [PDF]
, 2006 全球变化的区域响应，是一个备受关注的热点问题。迄今的研究表明，海洋环境与生态系统在不同的区域可能出现完全不同的时间变化规律。台湾海峡是季风控制的近海环境，具有典型性。因而本论文选取台湾海峡为研究区域，倚重具备时间序列优势的遥感数据并结合现场调查，以叶绿素作为生态指标，聚焦生态系统对环境变动响应这一科学问题，揭示所研究海区多时间尺度的变化规律及其与赤道太平洋ENSO指数变化规律的异同，并探讨其成因。 首先，为构建一有效的遥感叶绿素长序列数据 ...
张彩云
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Functional Ecology, Volume 40, Issue 4, Page 983-1000, April 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Organic phosphorus mineralization is a critical process in the phosphorus cycle, governing phosphorus bioavailability for plants. The PhoD gene, which encodes the key enzyme alkaline phosphatase, serves as a valuable biomarker for this process.
Sandhya Mishra +3 more
wiley +1 more source
Shuitu Baochi Xuebao, 2007 通过对沙坡头地区不同植被类型沙地土壤表层水分时空变化特征的研究表明，该区不同植被类型沙地土壤表层水分的分布均符合正态分布，降雨使表层土壤水分的空间变异性减小，空间自相关性减弱，分维数减小，空间自相关范围由干旱时的5m左右内变化扩大到几十米，土壤表层水分的空间依赖性增强；在土壤表层水分含量极低的情况下，土壤表层水分的空间变异性规律与土壤水分含量的变化规律一致；在土壤水分含量不是很低的情况下，其空间变异性与土壤表层水分含量变化趋势相反，流沙地、柠条地A、柠条地B、油蒿地 ...
潘颜霞 +3 more
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