Results 41 to 50 of about 11,809 (167)

Mechanism of bending-sideslip of inclined thick bedding slope: A case study of Qingkou landslide in Wulong, Chongqing [PDF]

open access: yes
The Qingkou landslide in Wulong, Chongqing, has developed on an inclined thick abrupt cliff, with a large area of goaf formed due to hundreds of years of coal mining below.
Junzhi LIN   +3 more
core   +1 more source

Interface Issues of Inorganic Solid‐State Electrolytes in Secondary Magnesium Batteries

open access: yesRare Metals, EarlyView.
ABSTRACT Solid‐state magnesium batteries (SSMBs) have gained significant attention as promising candidates for next‐generation safe energy storage systems because of the abundance of magnesium (Mg) in the earth's crust, superior energy density, and inherent nonflammability.
Jiren Wang   +9 more
wiley   +1 more source

Calorimeter for determination of heat sink of endothermic hydrocarbon fuels(吸热型碳氢燃料热沉测定装置研究)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2005
根据傅立叶定律径向系统的一维传热模型结合Tian's方程建立了一套高温流动型热量计,用于吸热型碳氢燃料的热沉测定和引发剂筛选;考察了系统的热稳定性能,用电标定的方法对仪器在500、550、600、650、700、750、800 ℃时的量热系数进行了标定,绘制了正庚烷在800 ℃、载气流速为0.04 m3/h条件下热裂解的热谱曲线,以正庚烷为模型化合物测定了其热沉.实验证明仪器基线稳定,数据可靠,复现性能良好,有较高的灵敏度和测量精度,能够满足实验需要和工作要求.
ZHOUXi-peng(周西朋)   +3 more
doaj   +1 more source

Highly Anisotropic TbCo11Ti: Phase Evolution, Microstructure and Magnetic Properties

open access: yesRare Metals, EarlyView.
ABSTRACT Among the 1:12‐type compounds, TbCo11Ti stands out due to its high Curie temperature and pronounced magnetocrystalline anisotropy. However, its magnetic behavior at room temperature and its phase evolution process have not been clearly established.
Wei Chen   +11 more
wiley   +1 more source

光伏发电系统最大功率跟踪的稳定性研究

open access: yesGaoya dianqi, 2012
由于光伏阵列的IV特性存在强烈的非线性,光伏系统的最大功率跟踪工作电压可能处于不同的非线性区段,系统调节器的不合理设计,可能造成系统的不稳定甚至崩溃。笔者针对光伏系统存在的不稳定区域问题,通过建立系统状态方程和传递函数,分析系统在MPPT控制中出现的不稳定现象和原因,并进行了仿真和实验验证,确定了影响因素。通过对系统控制参数的正确调节以及母线电容的适当选择可以增加系统的稳定性。
黄明玖, 罗皓泽, 苏建徽
doaj  

Seepage characteristics of accumulation landslides under different types of heavy rainfall stability analysis [PDF]

open access: yes
Heavy rainfall is a major causes of sedimentary landslide disasters, and understanding the spatiotemporal dynamic characteristics of the seepage field in landslides under heavy rain is crucial for evaluating landslide stability and providing ...
Hao SHI   +5 more
core   +1 more source

Recent Advances in Chemical Bath Deposition of Electron and Hole Transport Layers for Perovskite Solar Cells and Modules

open access: yesRare Metals, EarlyView.
ABSTRACT The development of high‐efficiency, stable, and scalable perovskite solar cells/perovskite solar modules (PSCs/PSMs) highly depends on the performance and cost‐effectiveness of functional layers such as electron transport layers (ETLs) and hole transport layers (HTLs).
Baochang Wang   +11 more
wiley   +1 more source

弃渣场边坡稳定性特征分析

open access: yesShuitu Baochi Xuebao, 2007
针对弃渣场边坡容易发生细沟侵蚀的问题,采集弃渣场坡面不同坡位的弃渣样品,对弃渣容重、含水量、饱和导水率、饱和含水量、砂粒含量、碎石含量等物理指标进行测定;与此同时,还对各点的样品进行直剪试验,并以此对弃渣场边坡稳定性特征进行分析。结果表明:新形成弃渣场坡面由上而下,其土体内摩擦角ψ逐渐增大,而土体粘滞系数C的变化与弃渣场坡面形成过程关系密切,一般而言,坡面的上部和下部粘滞系数C较小,说明弃渣场坡面上部土体的稳定性较中下部弱;对土体其他物理性质指标与土体的内摩擦角ψ、粘滞系数C进行相关性分析 ...
刘建伟   +3 more
doaj   +2 more sources

Ultrafast Catalytic Decomposition Reaction Using a ZIF‐67@Celluolose Nanofiber Composite‐Based Cobalt/ Nitrogen Co‐Doped Nanoporous Carbon for Water Treatment

open access: yesRare Metals, EarlyView.
ABSTRACT Recently, cobalt/nitrogen co‐doped materials have emerged as heterogeneous catalysts to activate peroxymonosulfate (PMS) and have been applied to advanced oxidation processes for environmental remediation. However, their recyclability and reusability remain major barriers to practical application.
Wen‐Kai Zhu   +11 more
wiley   +1 more source

Calculation of slope stability of fault-containing slopes under the action of cyclic blast vibration [PDF]

open access: yes
In order to accurately quantify and predict the evolution of slope stability of fault-containing slopes under the long-term effect of blasting vibration, and to realize the safe, efficient and sustainable mining of open-pit mines. Taking an open-pit mine
Dong WANG   +3 more
core   +1 more source

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