搜索结果: 1-15 共查到“物理学 system”相关记录371条 . 查询时间(0.375 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Spectral instability of Electronic Euler-Poisson System
电子 Euler-Poisson系统 谱不稳定性
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2023/12/11
The focus of this presentation is the spectral (in-)stability of periodic waves for the electronic Euler-Poisson system, a hydrodynamical model for understanding electron dynamics in plasmas. It is fo...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：An implicit, asymptotic-preserving and energy-charge conserving method for the Vlasov-Maxwell system near quasineutrality
弗拉索夫-麦克斯韦系统 近准中性 隐式渐近守恒 能量电荷守恒
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2023/4/13
An implicit asymptotic-preserving and energy-charge conserving (APECC) Particle-In-Cell method is proposed to solve the Vlasov-Maxwell (VM) equations in the quasi-neutral limit. Charge conservation is...
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...
With the addition of computers, laser cutters have rapidly become a relatively simple and powerful tool, with software controlling shiny machinery that can chop metals, woods, papers, and plastics. Wh...
System trains drones to fly around obstacles at high speeds
arithmetic drone aerodynamics
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2021/8/11
A new algorithm helps drones find the fastest route around obstacles without crashing. The system could enable fast, nimble drones for time-critical operations such as search and rescue.
LS2 Report: An upgraded Inner Tracking System joins the ALICE detector（图）
ALICE 检测器 LS2 像素探测器
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2023/5/30
After two nerve-wracking months dedicated to the installation of the ALICE detector’s new Inner Tracking System (ITS), Corrado Gargiulo’s mechanical engineering team, in charge of the installation, ca...
System's ability to boost laser precision at room temperature increases its usability（图）
boost laser precision room temperature increases usability
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2020/7/17
Physicists at the Massachusetts Institute of Technology have designed a quantum "light squeezer" that reduces quantum noise in an incoming laser beam by 15%. It is the first system of its ki...
HIGH THROUGHPUT SYSTEM FOR PLANT HEIGHT AND HYPERSPECTRAL MEASUREMENT
Height measurement hyperspectral measurement stereo vision grating dispersion high throughput, phenotypes
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2018/5/16
Hyperspectral and three-dimensional measurement can obtain the intrinsic physicochemical properties and external geometrical characteristics of objects, respectively. Currently, a variety of sensors a...
2018年SPIE光学系统校准，公差和验证会议（SPIE Optical System Alignment,Tolerancing,and Verification XII）
2018年 SPIE 光学系统校准，公差和验证 会议
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2017/11/27
The topics of tolerancing, alignment, and verification are crucial in the development of successful optical systems. The effective assembly of optical systems requires alignment of different system co...
Spontaneous System Follows Rules of Equilibrium（图）
Spontaneous System Follows Equilibrium
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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 ...
Reply to Comment “State-independent experimental test of quantum contextuality in an indivisible system
Comment “State-independent experimental quantum contextuality indivisible system
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2016/1/23
Reply to Comment “State-independent experimental test of quantum contextuality in an indivisible system.
Experimental Test of Quantum Jarzynski Equality with a Trapped Ion System
Quantum Jarzynski Equality Trapped Ion System
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2016/1/22
TheJarzynskiequalityrelatesthefree-energydiferencebetweentwoequilibriumstatestotheworkdoneonasystemthrough far-from-equilibriumprocesses amilestonethatbuildsonthepioneeringworkofClausiusandKelvin.Alth...
OPTICAL 3-D MEASURING SYSTEM WITH NESTED CAMERA BLOCKS
Industry Close Range Photogrammetry
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2015/6/1
This article describes a new photogrammetric 3-D measurement system for flat objects like plywood boards. 3-D measurement is
needed to get true dimensions of the object along its possibly curved sur...
Performance Prediction of the TMT Tertiary Mirror Support System
Tertiary mirror mirror performances mirror support optimizations
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2015/5/12
The Ritchey-Chrétien (RC) optical design of Thirty Meter Telescope (TMT) calls for a 3.1m diameter secondary mirror
(M2M) and an elliptical tertiary mirror (M3M) of 3.5m along its major axis and 2.5...
Advancement of the Segment Support System for the Thirty Meter Telescope Primary Mirror
telescope mirror segment
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2015/5/12
This paper presents refinements to the design of the TMT primary mirror segment passive-support system that are
effective in reducing gravity print-through and thermal distortion effects. First, a no...