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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Structure-Preserving Spectral Method for Large-Scale MHD System Simulation
MHD 系统仿真 保结构谱
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2023/11/6
Structure-preserving numerical methods are crucial for achieving long-time accurate, stable, consistent and physically meaningful simulations. In this talk, we present H^1 and H(div) conforming spectr...
Fuzzy comprehensive assessment of running condition for a large-scale centrifugal compressor set
Compressor Condition assessment Mathematical modeling Maximal information coefficient Dynamic deterioration degree Prediction
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2023/6/19
A fuzzy comprehensive assessment method of running condition was constructed and applied to a large-scale centrifugal compressor set in a petrochemical corporation aiming at the monitoring and early w...
Infrastructure planning on a megaregional scale（图）
Design Climate Change Architecture
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2023/6/27
For many, the Amtrak trip from Philadelphia to Baltimore is routine. But for Weitzman students in a studio studying the future of this transit corridor under the threat of sea level rise, the trip bec...
Researchers capture first atomic-scale images depicting early stages of particle accelerator film formation（图）
粒子加速器 薄膜形成 原子尺度图像
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2023/5/17
New research from a team of scientists at the Center for Bright Beams has made significant strides in developing new techniques to guide the growth of materials used in next-generation particle accele...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Towards Provably Efficient Quantum Algorithms for Nonlinear Dynamics and Large-scale Machine Learning Models
非线性动力学 机器学习模型 高效量子算法
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2023/4/13
Nonlinear dynamics play a prominent role in many domains and are notoriously difficult to solve. Whereas previous quantum algorithms for general nonlinear equations have been severely limited due to t...
The next generation of micrometer-scale batteries（图）
Materials Science Mechanical Engineering Electrical and Computer Engineering Research
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2023/6/29
Automated sprinklers, lighting, and security systems have been commonplace in homes and offices for several decades. In recent years, however, they have become increasingly efficient at anticipating u...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Dispersive estimates for the inviscid rotating stratified Boussinesq equations in the stratification-dominant three-scale limit
三尺度极限 无粘性旋转分层 Boussinesq方程 色散估计
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2023/5/5
A dispersive decay estimate is proven for the linear propagator of the three-scale rotating stratified Boussinesq equations in the stratification-dominant regime. Because the phase function of that pr...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars： Dispersive estimates for the inviscid rotating stratified Boussinesq equations in the stratification-dominant three-scale limit
分层主导 三尺度极限 无粘性旋转分层 Boussinesq方程 色散估计
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2023/5/5
A dispersive decay estimate is proven for the linear propagator of the three-scale rotating stratified Boussinesq equations in the stratification-dominant regime. Because the phase function of that pr...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Large scale device simulations
大规模 设备 仿真
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2023/5/5
As the device size shrinks to nanosize scale, the quantum mechanical effect and atomic level fluctuations become important. The traditional TCAD based on continuous medium model will no longer work. T...
Inspiration at the atomic scale（图）
原子尺度 电子显微镜 纳米级 材料科学
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2023/6/6
To explain why he loves electron microscopy, Associate Professor James LeBeau uses an analogy: He likens the technique, which uses beams of electrons to illuminate materials at a scale thousands of ti...
AI reveals scale of eelgrass vulnerability to warming, disease（图）
人工智能 鳗草 全球变暖 疾病脆弱性
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2023/5/18
A combination of ecological field methods and cutting-edge artificial intelligence has helped an interdisciplinary research group detect eelgrass wasting disease at nearly three dozen sites along a 1,...
Nanoclusters self-organize into centimeter-scale hierarchical assemblies（图）
纳米团簇 自组织 分层组件
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2023/5/22
Nature may abhor a vacuum, but it sure loves structure. Complex, self-organized assemblies are found throughout the natural world, from double-helix DNA molecules to the photonic crystals that make bu...
Engineers enlist AI to help scale up advanced solar cell manufacturing（图）
人工智能 太阳能电池 钙钛矿材料 光伏电池 机器学习
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2023/6/7
Perovskites are a family of materials that are currently the leading contender to potentially replace today’s silicon-based solar photovoltaics. They hold the promise of panels that are far thinner an...
基于灵敏度对比分析SCALE 6.1自带库与CENDL-TMSR-V1数据库
CENDL-TMSR-V1数据库 SCALE 6.1自带数据库 灵敏度 keff 不确定度
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2021/1/11
为满足钍基熔盐堆物理设计和钍铀燃料循环物理分析对核数据的需求，中国核数据中心研制了一套钍铀燃料循环专用数据库CENDL-TMSR-V1。本文利用SCALE程序，针对熔盐堆开展了SCALE 6.1自带数据库和CENDL-TMSR-V1库对比分析。结果显示，针对1 GWt钍增殖熔盐堆，利用两个数据库的238群数据计算的不同燃耗下keff最大差异约1 200 pcm。结合核数据对keff的灵敏度分析显示...
KNOWLEDGE-BASED FRAMEWORK FOR AUTOMATIC SEMANTISATION AND RECONSTRUCTION OF MILITARY ARCHITECTURE ON CITY-SCALE MODELS
city-scale model knowledge-based modelling architectural heritage
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2019/3/2
The scale models of fortified towns belonging to the Plans-Reliefs collection are exceptional witnesses of the formation of the French territory. The aim of the URBANIA project is the valorisation and...