搜索结果: 31-45 共查到“会议中心 工学 systems”相关记录408条 . 查询时间(0.485 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：高维可压缩Navier-Stokes方程三类平面波形在空间周期扰动下的渐近稳定性
高维可压缩 Navier-Stokes方程 三类平面波形 空间周期扰动 渐近稳定性
2023/5/6
疏散波(rarefaction wave)、激波(shock wave)和涡片波(vortex sheet)是可压缩流体中的三类基本波形，它们分别对应可压缩流体的疏散、压缩和剪切三类不同的物理现象。本次报告将研究对于可压缩Navier-Stokes方程，即考虑流体的粘性效应时，这三类波现象在小扰动下的稳定性。特别地，这里的扰动在空间无穷远处可以周期振荡，这类非局部扰动不仅带来数学上的新困难，也让我...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Hyperbolic minimizing closed orbit and Herman's conjecture
双曲 最小化 闭合轨道 赫尔曼猜想
2023/5/6
We are motivated to study this problem so that the proof of Arnold Diffusion of many degrees of freedom can be significantly simplified.
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：飞机轨迹的预测算法
飞机轨迹 预测算法 神经网络
2023/5/4
Using knowledge-driven trajectory prediction is difficult to describe complex reasoning processes, and the use of expert prior knowledge can add too many subjective factors to the judgment process, wh...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Optimization problem in remote sensing data processing
遥感 数据处理 优化问题
2023/5/4
In this talk, we will introduce some optimization problem in remote sensing data processing. The high dimensional characteristics of remote sensing data, especially hyperspectral data, will not only l...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：受人启发机器人与对类人人形机器人的思考
机器人 类人人形机器人 人工智能
2023/5/4
普通机器人高性能作业能力是机器人领域核心问题之一，也是其广泛高端应用的主要瓶颈。基于人类整体性能高于单元性能的机理，通过模拟人的神经机制与结构机理，研制受人启发的机器人系统，是在有限本体精度和有限传感精度下实现机器人高性能作业的有效途径。本报告将结合中国科学院自动化研究所机器人理论与应用团队的研究工作，对受人启发机器人研究的初步进展进行简要介绍，以期能够对未来类人人形机器人的研究带来启发。
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Babuska Problem in Composite Materials and its Application to Acoustic Resonators
复合材料 巴布斯卡问题 声学谐振器
2023/4/27
A long-standing area of material science has been the study of electrostatic and elastic fields in composite material. In high-contrast composites, when two adjacent inclusions are close to touching, ...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Long-time behavior of Alfven waves in a flowing plasma
阿尔文波 流动 等离子体 长期行为
2023/4/28
In this talk, we consider the long-time behavior of the linearized MHD equations around a steady flowing plasma. We confirm the following physical phenomenon: there will be a generation of a magnetic ...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：计算机图形学中的非线性方程求根计算
计算机图形学 非线性方程 求根计算
2023/4/25
计算机图形学中的求交、最近距离计算、碰撞检测等问题，涉及到非线性方程或方程组的求根。首先针对单变量非线性方程的求根计算，提出了一种基于插值的多项式包围盒构造方法，可用于快速排除不含根的小区间。其次，为了简化逼近函数后得到的方程组，采用了有理多项式逼近的思想，改进了相应的收敛阶。最后，将上述思路推广到多变量非线性方程组的求解。
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：量子人工智能前沿进展
量子 人工智能 前沿进展
2023/4/23
Quantum artificial intelligence (Quantum AI) is an emergent interdisciplinary field that explores the interplay between artificial intelligence and quantum physics. On the one hand, judiciously design...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：多相多组分渗流力学模拟器研究进展
多相多组 分渗流力学 模拟器
2023/4/23
由于油气资源的成分复杂，油藏工程师在描述原油的性质时，常常需要使用不同的数学模型。除了经典的黑油模型之外，还有诸如热采模型、裂缝模型、多重介质模型等。一些提高采收率技术通常基于更一般的组分模型框架来进行数值模拟，例如聚合物驱油剂、表面活化剂驱油剂、碱驱油剂、微生物驱油剂、低盐度水驱等。此外，二氧化碳埋藏、地下水污染治理、地热资源开采等应用问题也可使用组分模型来模拟。这些重要的应用使得多相多组分模拟...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Convex integration and non-uniqueness of weak solutions for viscous fluids
粘性流体弱解 凸积分 非唯一性
2023/4/23
In this talk, I will discuss the method of convex integration and its applications on non-uniqueness of weak solutions to the hyper-viscous incompressible Navier-Stokes equations as well as the hypo-v...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Building private information retrieval schemes over binary fields
二进制字段 私有信息 检索方案
2023/4/21
The private information retrieval (PIR) problem was first proposed by Chor et al. in 1995, and it is a canonical problem in the study of privacy issues that arise from the retrieval of information fro...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Introduction of Semiconductor Measuring Equipment Technology
半导体测量 设备技术 半导体
2023/4/21
本报告结合个人在半导体量测设备技术行业的工作经历，简要介绍半导体领域的技术，主要包括芯片制造工艺流程，光学量测技术OCD，器件几何建模，光学仿真算法RCWA和明暗场检测设备图像处理集群。
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Traceability of Water Pollution: An Inversion Scheme via Dynamic CGO Solutions
水污染 可追溯性 动态CGO解决方案 反演方案
2023/4/21
We aim to find the time-dependent source term in the diffusion equation from the boundary measurement, which allows for the possibility of tracing back the source of pollutants in the environment. Bas...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Bio-inspired clock synchronization
仿生时钟 同步 工程文献
2023/4/21
Clock synchronization is a widely discussed topic in the engineering literature. Ensuring that individual clocks are closely aligned is important in network systems, since the correct timing of variou...