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Computer chips are packed with billions of microscopic transistors that enable powerful computation, but also generate a great deal of heat. A buildup of heat can slow a computer processor and make it...
2022年7月15日,由英国诺桑比亚大学(Northumbria University)设计学院主办的题为“用先进技术和服务让城乡发展更加融合”国际研讨会暨牛顿奖项目展览(International workshop on"Better Integration of Urban and Rural Development with Advanced Technologies and Service...
近日,广西大学物理科学与工程技术学院2020级博士研究生梁继升等人与导师苗蕾在国际顶级期刊《Advanced Energy Materials》(中科院一区TOP期刊,2021年影响因子29.368)上发表题为“Synergistic effect of band and nanostructure engineering on the boosted thermoelectric perform...
Why boiling droplets can race across hot oily surfaces(图)     量化  微流体装置  传热系统       font style='font-size:12px;'> 2023/6/19
When you’re frying something in a skillet and some droplets of water fall into the pan, you may have noticed those droplets skittering around on top of the film of hot oil. Now, that seemingly trivial...
迄今最小发动机仅一个离子大可用于回收余热提高能效     最小发动机  离子  回收  余热  能效       font style='font-size:12px;'> 2019/8/23
据物理学家组织网21日报道,一个由爱尔兰都柏林三一学院理论物理学家领导的国际团队,建造了世界上最小的发动机——单个钙离子,其体积仅为汽车发动机的100亿分之一。这种设备未来可被纳入其他技术,回收余热,从而提高能源效率。
2018年7月4日,在法国卡昂举行的第37届国际热电大会暨第16届欧洲热电年会上,中国科学院上海硅酸盐研究所陈立东研究员当选为国际热电学会(International Thermoelectric Society,ITS)理事(board member)。国际热电学会是国际热电研究领域最重要的学术组织,理事由来自美、日、法、德、韩、中等多个国家的13名科学家组成。每届任期3年,此次是陈立东研究员第...
A new device being developed by Washington State University physicist Yi Gu could one day turn the heat generated by a wide array of electronics into a usable fuel source.The device is a multicomponen...
How do you build a metal nanoparticle?     build  metal nanoparticle       font style='font-size:12px;'> 2017/7/24
Although scientists have for decades been able to synthesize nanoparticles in the lab, the process is mostly trial and error, and how the formation actually takes place is obscure. However, a study re...
Spontaneous System Follows Rules of Equilibrium(图)     Spontaneous System  Follows  Equilibrium       font style='font-size:12px;'> 2017/7/24
Scientists have long known the ins and outs of equilibrium thermodynamics. Systems in equilibrium — a stable state of unchanging balance — are governed by a neat set of rules, making them predictable ...
纳米技术提高热电转换效率     纳米技术  热电转换效率  NanoHiTEC技术  赛贝克效应       font style='font-size:12px;'> 2017/1/9
如何将大量汽车尾气排放的废弃热量高效转化为有用的电能,成为欧盟第七研发框架计划(FP7)的研究课题。欧盟为此提供375万欧元资助,总研发投入530万欧元,由列支敦士登、德国、法国、意大利、西班牙、奥地利和瑞士7个国家及14家纳米材料企业联合组成欧洲NanoHiTEC技术攻关团队。根据赛贝克效应,当2种不同温度的物质材料相互接触时,接触面存在电荷扩散流动,会在物质材料两端产生电压,反之亦然。纳米结构...
Since the 1850s scientists have known that crystalline materials are organized into 14 different basic lattice structures. However, a team of researchers from Vanderbilt University and Oak Ridge Natio...
The Arctic ground squirrel sheds light on circadian rhythms     circadian rhythms  ground squirrel sheds       font style='font-size:12px;'> 2014/12/1
This species' ability to adapt to constant daylight may ultimately help answer questions about human sleep disorders and other health problems The Arctic ground squirrel has developed highly speciali...
If you can uniformly break the symmetry of nanorod pairs in a colloidal solution, you’re a step ahead of the game toward achieving new and exciting metamaterial properties. But traditional thermodynam...
Sleeping sands of the Kalahari awaken after more than 10,000 years(图)     Kalahari awaken  Sleeping       font style='font-size:12px;'> 2014/12/1
The name conjures an arid, almost lifeless expanse, its red, iron oxide sands stretching to the horizon and beyond. Kgala, Tswana natives called it, the great thirst. Kgalagadi, it's also named: the...
新型石墨烯晶体管实现高开关比率     石墨烯晶体管  高开关比率       font style='font-size:12px;'> 2013/1/24
据物理学家组织网2013年1月23日(北京时间)报道,英国曼彻斯特大学的科研人员设计出一种新型石墨烯晶体管,在其中电子可借助隧穿和热离子效应,同时从上方和下方穿越障碍,并在室温下展现出高达1×106的开关比率。

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