搜索结果: 16-30 共查到“理学 Model”相关记录36条 . 查询时间(0.246 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Model-Guided Data Driven Extremum Seeking Control
模型引导 数据驱动 极值 控制
2023/5/5
Extremum seeking control(ESC)is a class of data-driven optimization algorithms which can drive the output of an unknown dynamic system to its optimal value with respect to some cost function by using ...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：HT-Net: Hierarchical Transformer based Operator Learning Model for Multiscale PDEs
HT-Net 分层变压器 多尺度 偏微分方程 算子学习模型
2023/5/6
Complex nonlinear interplays of multiple scales give rise to many interesting physical phenomena and pose major difficulties for the computer simulation of multiscale PDE models in areas such as reser...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Distributed Order Estimation of ARX Model Under Cooperative Excitation Condition
协同 激励条件 ARX模型 分布式阶估计
2023/5/6
This talk considers the distributed estimation problem of a linear stochastic system described by an autoregressive model with exogenous inputs when both the system orders and parameters are unknown. ...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Reevaluation of the carbon emissions embodied in global value chains based on an inter-country input-output model with multinational enterprises
跨国企业 国家间 投入产出模式 全球价值链 碳排放
2023/5/9
Multinational enterprises actively participate in global production networks. However, the current global value chain accounting framework fails to consider the emissions originating from the producti...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：On the Derrida-Retaux recursive model
Derrida-Retaux 递归模型 递归论
2023/5/16
In order to study the depinning transition in presence of strong disorder, Derrida and Retaux (J. Stat. Phys. (2014)) introduced a discrete-time max-type recursive model. It is believed that for a lar...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Connection probabilities for random-cluster model and uniform spanning treeConnection probabilities for random-cluster model and uniform spanning tree
随机 聚类模型 均匀生成树 连接概率
2023/5/16
Conformal invariance of critical lattice models in two-dimensional has been vigorously studied for decades. The first example where the conformal invariance was rigorously verified was the planar unif...
With plants as a model, studying the ‘complexity and reproducibility’ of developmental biology（图）
植物 发育生物学 分子机制
2023/7/11
Nearly paper-thin, often with a complex two-dimensional shape, leaves may number into the hundreds of thousands on an organism like a white oak. Yet typically, each leaf appears quite similar in form.
Scientists develop the largest, most detailed model of the early universe to date（图）
早期宇宙模型 黎明女神 Thesan 辐射
2023/6/9
It all started around 13.8 billion years ago with a big, cosmological “bang” that brought the universe suddenly and spectacularly into existence. Shortly after, the infant universe cooled dramatically...
With a little twist and the turn of a voltage knob, Cornell researchers have shown that a single material system can toggle between two of the wildest states in condensed matter physics: the quantum a...
Planckian metals have the potential to power high-temperature superconductors, quantum computers and a host of other next-generation technologies. However, these “strange” metals – in which electrical...
The best-known particle in the lepton family is the electron, a key building block of matter and central to our understanding of electricity. But the electron is not an only child. It has two heavier ...
《Geoscientific Model Development》（图）
Geoscientific Model Development the Earth System the Earth System's components
2010/1/7
Geoscientific Model Development (GMD) is an international scientific journal dedicated to the publication and public discussion of the description, development and evaluation of numerical models of th...
Southampton relativity researchers awarded £1.7m grant to model Einstein’s elusive waves
theory of relativity gravitational waves astronomy
2007/5/18
16 May 2007，The General Relativity group of the University of Southampton’s School of Mathematics has been awarded a rolling grant worth £1.7m by the Science and Technology Facilities Council.
3 May 2007，Bill Oddie once described the spectacular twilight flocking of starlings as the greatest wonder of nature.The nightly display by thousands of birds has even caught the eye of advertisers, b...
Global University of Queensland achiever is model expat
Expatriate Achievement Award Chemical
2007/5/10
10 May 2007，The University of Queensland has congratulated a distinguished graduate who has been honoured with the Premier of Queensland Expatriate Achievement Award.Dr Andrew Liveris, the President, ...