搜索结果: 31-45 共查到“国际动态 晶体学”相关记录66条 . 查询时间(2.991 秒)
新型量子热晶体管能有效控制热流
新型量子热晶体管 控制热流
2016/6/2
法国普瓦提埃大学和国家科学研究院（CNRS）研究人员设计出一种能像电子晶体管控制电流那样控制热流的量子热晶体管，能从发电站及其他能源系统收集并循环利用余热。目前虽有传输和引导余热的方法，但无法对热流进行有效控制，量子热晶体管做到了这一点。据物理学家组织网23016年5月31日报道，虽然这不是第一个热晶体管，但是第一个由量子物体制造的热晶体管，而其他热晶体管多是用宏观材料如固体或相变材料制造。这种量...
Penn Engineers Develop First Transistors Made Entirely of Nanocrystal ‘Inks’
Penn Engineers Transistors Nanocrystal Inks
2016/4/13
The transistor is the most fundamental building block of electronics, used to build circuits capable of amplifying electrical signals or switching them between the 0s and 1s at the heart of digital co...
Down the rabbit hole: how electrons travel through exotic new material
Down the rabbit hole electrons travel exotic new material
2016/3/21
Researchers at Princeton University have observed a bizarre behavior in a strange new crystal that could hold the key for future electronic technologies. Unlike most materials in which elec...
美国IBM公司碳纳米管商用技术取得重大突破
美国IBM公司 碳纳米管商用技术
2015/12/21
美国IBM公司的研究人员近期宣布，已经攻克了碳纳米管生产中的一个主要挑战，这将有助于生产出具有商业竞争力的碳纳米管设备。过去几十年，半导体行业尝试向单块计算机芯片中集成更多硅晶体管，从而不断加强芯片的性能。不过，这一发展很快就将遭遇物理极限。目前，IBM的研究人员表示，凭借重要的工程突破，碳纳米管晶体管替代硅晶体管未来将成为现实。
Facetless crystals that mimic starfish shells could advance 3-D-printing pills（图）
Crystal p 3-D-printing pills
2014/12/1
ANN ARBOR—In a design that mimics a hard-to-duplicate texture of starfish shells, University of Michigan engineers have made rounded crystals that have no facets.
Facetless crystals that mimic starfish shells could advance 3-D-printing pills
3-D-printing pills Facetless crystals
2014/10/30
ANN ARBOR—In a design that mimics a hard-to-duplicate texture of starfish shells, University of Michigan engineers have made rounded crystals that have no facets.
Longstanding bottleneck in crystal structure prediction solved
Longstanding bottleneck crystal structure prediction solved
2014/10/9
The various patterns that atoms of a solid material can adopt, called crystal structures, can have a huge impact on its properties. Being able to accurately predict the most stable crystal structure f...
UNIVERSITY PARK, Pa. -- Understanding how atoms "glide" and "climb" on the surface of 2D crystals like tungsten disulphide may pave the way for researchers to develop materials with unusual or unique ...
英国投资参与建造世界上最为先进的晶体学设施
英国投资 世界上最为先进 晶体学设施
2014/7/24
据悉，英国生物技术与生物科学研究理事会、英国医学研究理事会和英国维康集团将在未来5年内（2014-2019）共同出资564万英镑参与位于德国汉堡的欧洲X射线自由电子激光装置（XFEL）项目。
Technique simplifies the creation of high-tech crystals
Technique simplifies creation of high-tech crystals
2014/8/14
Highly purified crystals that split light with uncanny precision are key parts of high-powered lenses, specialized optics and, potentially, computers that manipulate light instead of electricity. But ...
Penn Researchers: Consider the ‘Anticrystal’（图）
Solid state physics. Crystal Materials Amorphous materials Interfere with the particle
2014/7/18
For the last century, the concept of crystals has been a mainstay of solid-state physics. Crystals are paragons of order; crystalline materials are defined by the repeating patterns their constit...
四色定理用于解析晶体磁性能（图）
四色定理 晶体磁性能
2014/6/13
畴结构可用四色定理来理解，它们的图案及相关着色方案，与材料的磁特性密切相关。如图所示，a图中的晶体材料的畴结构，依照四色定理可染色为b图“模样”；而c图中第二种晶体材料，需依照特殊版本四色定理，染色后为d图，显示为红蓝绿三种颜色中的深色或浅色。
日首次发现某些有机晶体也具有超弹性
日 首次 有机晶体 超弹性
2014/5/9
众所周知，橡胶是有弹性的。日本横滨市立大学的研究人员首次在有机晶体中发现了另一种完全不同形式的超弹性，其源于晶体结构内部的分子变化，此前这种现象只在合金和某些无机材料中被发现。这类超弹性有机晶体在建筑和医学领域当中具有潜在应用价值。该研究结果刊登在最新一期的德国《应用化学》杂志上。
The University of Queensland celebrates Nobel physicist（图）
X-ray crystallography Nobel physicist
2014/7/8
The University of Queensland will celebrate the International Year of Crystallography with a free public lecture on Max von Laue, who won the Nobel Prize in Physics in 1914 for his pioneering work on ...
Liquid crystal turns water droplets into 'gemstones,' Penn materials research shows（图）
Liquid crystal gemstones
2014/3/17
Liquid crystals are remarkable materials that combine the optical properties of crystalline solids with the flow properties of liquids, characteristics that come together to enable the displays found ...