Results 41 to 50 of about 10,417 (172)
International Journal of Applied Linguistics, Volume 36, Issue 2, Page 979-994, May 2026.ABSTRACT Previous research has established the relationships between motivation, anxiety, teachers’ support, and self‐regulated learning (SRL) in English‐as‐a‐foreign‐language (EFL) learning. Most of the studies, however, have taken a variable‐centered approach in addressing the variable correlations, while learners’ characteristics and variable links ...
Yuhong Jiao, Barry Bai, Jing Li
wiley +1 more source
Shuitu Baochi Xuebao, 2005 以太湖典型地区宜兴市大浦镇湖滨公路以东50hm2蔬菜地为研究对象,网格法(50m×50m)采集表层(0～20cm)土壤156个,采用传统统计和地统计学相结合的方法,研究了土壤氮素及pH的空间变异特征。结果表明:土壤全N和NH4 -N有明显的空间变异结构。全N符合指数模型,NH4 -N变异函数符合线性模型,全N有强烈的空间相关性,NH4 -N有中等的空间相关性。土壤pH普遍偏低,pH变异函数符合指数模型,在小范围内具有强烈的空间相关性。土壤碱解N与pH呈显著负相关,表明施用氮肥是导致土壤pH下降的主要原因。
王彩绒 吕家珑 胡正义 杨林章 高义明
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Characteristics and Drivers of Spatial and Temporal Soil Erosion in Anshun City, Karst Region [PDF]
[Objective] To explore the spatial and temporal evolution of soil erosion in Anshun City, southwest karst region, as well as the main controlling factors of soil erosion, and to master the soil erosion situation in the region, in order to help the ...
LI Yuan, LIU Ziqi, WU Wenxian
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Piezocatalytic technology utilizes mechanical strain or stress‐induced piezoelectric phenomena to produce robust internal electric fields, markedly improving the separation efficiency of e−‐h+ pairs. This method has emerged as a focal point in catalysis by removing reliance on conventional light or electrical energy via its mechanical‐to ...
Yue Zhou +5 more
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Shuitu Baochi Xuebao, 2020 为研究小流域尺度下土壤有机碳的变异规律，运用地统计学方法对研究区0—10，10—20，20—40 cm土壤有机碳含量的空间变异性进行了研究。结果表明：流域内不同土层有机碳含量属于中等强度变异，具有强烈的空间自相关性；土壤有机碳含量在0，135°方向上空间变异程度明显，空间分布的各向异性显著；克里格插值结果显示流域内阴坡土壤有机碳含量明显高于阳坡，高海拔区域土壤有机碳含量高于低海拔区域；不同土层间，土壤有机碳含量均表现为青海云杉 > 灌丛 > 草地，表明不同植被类型对土壤有机碳含量和分布有着重要影响 ...
芦倩, 李毅, 刘贤德, 赵维俊
doaj
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
Application of Kriging Method in the First Arrival Tomographic Statics Correction [PDF]
, 2009 西部地区地震勘探工作多是在山地、山前带、沙漠、沟壑纵深区等低降速带变化大的复杂地区进行,静校正问题成为制约勘探成效的瓶颈问题。如果在数据采集时,考虑到地学断面空间结构横向上存在的相关性,引入地质统计学的克里格(krIgIng)方法估计整个区域内的静校正值,根据静校正值估计分布图合理布置炮点与接收点的位置,从而可以获得静校正量变化更加平稳的数据,提高地震初至波的分辨率,最终得到高质量的地震剖面。根据这一思路,编制了初至层析克立格静校正软件。Since seismic exploration in the ...
张元鹏
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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, 2002 探讨了研究土壤空间变异所必须考虑的相关尺度问题，立足国内，兼顾国外，介绍了近年来土壤特性空间变异性几种研究方法及应用的研究动态，讨论了空间变异研究方法的各自特点及今后研究和应用的发展趋势，展望了空间变异性研究在土壤科学、水土保持与水资源系统中的应用前景。
李毅 王文焰 王全九
doaj
Study on Change Law of Species Richness under Different Scales in Subtropical Evergreen Broad-leaved Forest [PDF]
, 2008 植物群落多样性主要指植物群落在组成、结构、功能和动态方面的多样化程度。从物种组成方面研究群落的组织水平或多样化程度是群落多样性最基础、最重要的研究内容。本文通过对不同面积的取样调查，详细、系统的研究了福建南靖南亚热带雨林与宁化牙梳山中亚热带常绿阔叶林群落物种多样性及其多样性在不同尺度下的变化规律。主要结论如下：(1)南靖南亚热带雨林样地中有维管束植物65科，109属，180种。其中蕨类植物14科，17属，23种；裸子植物2科，2属，2种；被子植物49科，90属，155种；双子叶植物39科，76属 ...
关少华
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