Results 11 to 20 of about 6,268 (166)
Experiment, modelling, mechanism and significance of multiscale and dynamic diffusion-permeability of gas through micro-nano series pores in coal [PDF]
As one of the hot issues at the frontiers of science in the world, the multi-scale scientific question has occurred in the fields of natural science and engineering.
Jiansong PENG +3 more
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Land Use and Land Cover Classifications of Horqin Sandy Land Dune-Meadow Areas [PDF]
In this study, we determine land use/land cover (LULC) types using only optical remote sensing data in a dune-meadow area of Horqin Sandy Land in northeast China. We used 64 Sentinel-2 remote sensing images from 2018.
Cao, Wenmei +5 more
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Radiative properties of flue gas under high-altitude sub-atmospheric pressure [PDF]
The special geography of the plateau area leads to a series of problems in boiler operation. In this study, the absorption coefficients and total emissivity of flue gas were determined under different air pressures during air combustion using the Line-By-
Defu CHE +6 more
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Preliminary study on assimilation of significant wave heights from T/P altimeter [PDF]
2003-2004 > Academic research: refereed > Publication in refereed journalVersion of ...
Li, CW, Li, YS, Qi, Y, Shi, P, Zhang, Z
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Probing metal complex by mass spectrometry [PDF]
金属配合物由于具有优异的物理和化学性质,如催化、分子识别、手性拆分、C-H活化、荧光和生物医学等,在最近引起了广泛的研究兴趣。金属配合物的各种物理或化学性质与其结构及化学组成密切相关,目前X-射线单晶衍射是金属配合物结构和化学组成的主要表征方法。然而,X射线衍射的方法无法明确分辨电子数相近的原子,且对于金属配合物结构上的某些无序位置,X射线衍射的方法无法准确地确定其化学组成。而质谱是基于质荷比(m/z)表征化合物在溶液状态下的化学成分的分析仪器。与X射线衍射相比 ...
苏海峰
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本文讨论磁场中中等低气压弧光放电与辉光放电的正柱理论。文献[1]是给定放电中间参数后,假定中性气体运动,研究放电现象.本文仍假定中性气体运动,但给出初始放电参数,补充两个积分关系,建立了初始放电参数与中间参数的关系。给出这个问题完整的数学提法。用数值方法求解。文献[1]相当于第一次迭代。结果表明 ...
唐福林, 徐复, 陈乐山
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Review of the mechanisms of climatic elements on sleep quality [PDF]
Sleep is a basic need for human life-sustaining activities, and sleep quality is closely related to human health. With the rapid changes in the global climate, an increasing number of studies have found that climate change has an important impact on ...
WANG Jiaxin, ZHANG Xin, HU Linlin
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ABSTRACT Moisture‐enabled electricity generation technology offers a new paradigm for sustainable energy harvesting, but its practical applications are still limited by issues such as low output power and insufficient long‐term stability. In this paper, an asymmetric sandwich‐structured hydrogel moist–electric generator (SSHMEG) with an ion ...
Peng Chen +7 more
wiley +1 more source
ABSTRACT In conventional piezoceramics, the coordinated change between the dielectric constant (εr) and the piezoelectric charge constant (d33) usually limits the piezoelectric voltage constant g33 (g33 = d33/εr), a critical figure of merit for piezoelectric sensors.
Xiaoying Feng +7 more
wiley +1 more source

