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2020年全球煤电容量首次下降 快报文章
气候变化快报,2020年第17期
作者:  裴惠娟
Microsoft Word(14Kb)  |  收藏  |  浏览/下载:384/0  |  提交时间:2020/09/04
Coal Power Capacity  Drop  
Stress-DependentbValue Variations in a Heterogeneous Rate-and-State Fault Model 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2020, 47 (13)
作者:  Dublanchet, P.
收藏  |  浏览/下载:16/0  |  提交时间:2020/06/16
magnitude frequency distribution  Gutenberg-Richter  nucleation length  stress drop  rate-and-state friction  fracture energy  
Stress Drop Variation of Deep-Focus Earthquakes Based on Empirical Green's Functions 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2020, 47 (9)
作者:  Liu, Meichen;  Huang, Yihe;  Ritsema, Jeroen
收藏  |  浏览/下载:17/0  |  提交时间:2020/07/02
stress drop  deep-focus earthquakes  corner frequency  
Liquid flow and control without solid walls 期刊论文
NATURE, 2020, 581 (7806) : 58-+
作者:  Hellmuth, Susanne;  Stemmann, Olaf
收藏  |  浏览/下载:52/0  |  提交时间:2020/07/03

Wall-free liquid channels surrounded by an immiscible magnetic liquid can be used to create liquid circuitry or to transport human blood without damaging the blood cells by moving permanent magnets.


When miniaturizing fluidic circuitry, the solid walls of the fluid channels become increasingly important(1) because they limit the flow rates achievable for a given pressure drop, and they are prone to fouling(2). Approaches for reducing the wall interactions include hydrophobic coatings(3), liquid-infused porous surfaces(4-6), nanoparticle surfactant jamming(7), changes to surface electronic structure(8), electrowetting(9,10), surface tension pinning(11,12) and use of atomically flat channels(13). A better solution may be to avoid the solid walls altogether. Droplet microfluidics and sheath flow achieve this but require continuous flow of the central liquid and the surrounding liquid(1,14). Here we demonstrate an approach in which aqueous liquid channels are surrounded by an immiscible magnetic liquid, both of which are stabilized by a quadrupolar magnetic field. This creates self-healing, non-clogging, anti-fouling and near-frictionless liquid-in-liquid fluidic channels. Manipulation of the field provides flow control, such as valving, splitting, merging and pumping. The latter is achieved by moving permanent magnets that have no physical contact with the liquid channel. We show that this magnetostaltic pumping method can be used to transport whole human blood with very little damage due to shear forces. Haemolysis (rupture of blood cells) is reduced by an order of magnitude compared with traditional peristaltic pumping, in which blood is mechanically squeezed through a plastic tube. Our liquid-in-liquid approach provides new ways to transport delicate liquids, particularly when scaling channels down to the micrometre scale, with no need for high pressures, and could also be used for microfluidic circuitry.


  
A Two-Moment Bulk Parameterization of the Drop Collection Growth in Warm Clouds 期刊论文
JOURNAL OF THE ATMOSPHERIC SCIENCES, 2020, 77 (3) : 797-811
作者:  Zeng, Xiping;  Li, Xiaowen
收藏  |  浏览/下载:19/0  |  提交时间:2020/07/02
Cloud microphysics  Drop size distribution  Clouds  Parameterization  
Reply to "What Is the Maximum Entropy Principle? Comments on 'Statistical Theory on the Functional Form of Cloud Particle Size Distributions'" 期刊论文
JOURNAL OF THE ATMOSPHERIC SCIENCES, 2019, 76 (12) : 3961-3963
作者:  Wu, Wei;  McFarquhar, Greg M.
收藏  |  浏览/下载:16/0  |  提交时间:2020/02/17
Cloud microphysics  Clouds  Drop size distribution  Statistical techniques  Spectral analysis  models  distribution  
Inter-comparison of DSDs between Jincheon and Miryang at South Korea 期刊论文
ATMOSPHERIC RESEARCH, 2019, 227: 52-65
作者:  Loh, Jui Le;  Lee, Dong-In;  You, Cheol-Hwan
收藏  |  浏览/下载:16/0  |  提交时间:2019/11/27
Drop size distribution  DSD parameters  Parsivel disdrometer  DSD characteristics  
Microphysical characteristics of a convective precipitation system observed on July 04, 2012, over Mt. Halla in South Korea 期刊论文
ATMOSPHERIC RESEARCH, 2019, 222: 74-87
作者:  Kim, Hyeon-Joon;  Lee, Keun-Ok;  You, Cheol-Hwan;  Uyeda, Hiroshi;  Lee, Dong-In
收藏  |  浏览/下载:12/0  |  提交时间:2019/11/26
Drop size distribution  Disdrometer  Orographic precipitation  Moist environment  
Efficient Determination of Cloud Drop Number Concentration Near the Cloud Base With Parameterization Based on Fundamental Theory and Parcel Model Simulations 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2019, 124 (12) : 6467-6483
作者:  Wang, Li-Jia;  Chen, Jen-Ping
收藏  |  浏览/下载:9/0  |  提交时间:2019/11/26
cloud drop number concentration  parameterization  binned microphysical parcel model  cloud drop activation  
Analytical Solutions for Precipitation Size Distributions at Steady State 期刊论文
JOURNAL OF THE ATMOSPHERIC SCIENCES, 2019, 76 (4) : 1031-1037
作者:  Garrett, Timothy J.
收藏  |  浏览/下载:10/0  |  提交时间:2019/11/26
Cloud microphysics  Drop size distribution  Freezing precipitation