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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Hausdorff dimension, singular vectors and divergent trajectories
豪斯多夫维数 奇异向量 发散轨迹
2023/5/12
In this talk, I will give a survey of results related to the problem of computing Hausdorff dimension of various dynamically defined sets, such as singular vectors. The aim is to try to describe the l...
Linear growth trajectories in Zimbabwean infants
children infants longitudinal malnutrition prenatal stunting
2018/12/19
Background: Undernutrition in early life underlies 45% of child deaths globally. Stunting malnutrition (suboptimal linear growth) also has long-term negative effects on childhood development. Linear g...
School Attendance: Equities and inequities in growth trajectories of academic performance
School Attendance Equities and inequities
2015/6/2
Much of the pedagogical as well as political tension in the discussion about the effects of education on the development of children has been focused on the importance of the quality of education as d...
Simulations of direct and reflected wave trajectories for ground-based GNSS-R experiments
Simulations of direct refl ected wave trajectories
2014/12/19
The detection of Global Navigation Satellite System (GNSS) signals that are reflected off the surface, along
with the reception of direct GNSS signals, offers a unique
opportunity to monitor w...
Analyticity of Lagrangian trajectories for well posed inviscid incompressible fluid models
Analyticity of Lagrangian trajectories well posed inviscid incompressible fl uid models
2014/4/3
We discuss general incompressible inviscid models, including the Euler equations, the surface quasi-geostrophic equation, incompressible porous medium equation, and Boussinesq equations. All these mod...
Quantum Filtering (Quantum Trajectories) for Systems Driven by Fields in Single Photon States and Superposition of Coherent States
Quantum Trajectory Superposition of Coherent States Single Photon States
2011/10/8
Abstract: We derive the stochastic master equations, that is to say, quantum filters, and master equations for an arbitrary quantum system probed by a continuous-mode bosonic input field in two types ...
Explanation of quantum interference: Classical trajectories plus ballistic diffusion caused by zero-point fluctuations
quantum mechanics, ballistic di usion, nonequilibrium thermodynamics, zero-point
2011/9/29
A purely classical explanation of quantum mechanical interference is given. We claim that for every single \particle" a thermal context can be de ned, which re ects its embedding within boundary condi...
Particle trajectories in linearized irrotational shallow water flows
Particle trajectory linearized irrotational shallow water flows
2011/7/26
Abstract: We investigate the particle trajectories in an irrotational shallow water flow over a flat bed as periodic waves propagate on the water's free surface. Within the linear water wave theory, w...
Particle trajectories beneath small amplitude shallow water waves in constant vorticity flows
Particle trajectories beneath small amplitude constant vorticity flows Fluid Dynamics
2011/7/26
Abstract: We investigate the particle trajectories in a constant vorticity shallow water flow over a flat bed as periodic waves propagate on the water's free surface. Within the framework of small amp...
Particle trajectories beneath small amplitude shallow water waves in constant vorticity flows
Particle trajectories small amplitude vorticity flows
2011/9/14
We investigate the particle trajectories in a constant vorticity shallow water flow over a flat bed as periodic waves propagate on the water’s free surface. Within the framework of small amplitude wav...
Residual circulation trajectories and transit times into the extratropical lowermost stratosphere
the extratropical lowermost stratosphere residual circulation trajectories
2011/2/24
Transport into the extratropical lowermost stratosphere (LMS) can be divided into a slow part (time-scale of several months to years) associated with the global-scale stratospheric residual circulatio...
Non-equilibrium steady states : maximization of the Shannon entropy associated to the distribution of dynamical trajectories in the presence of constraints
Non-equilibrium steady states Shannon entropy distribution of dynamical trajectories
2010/11/18
Filyokov and Karpov [Inzhenerno-Fizicheskii Zhurnal 13, 624 (1967)] have proposed a theory of
non-equilibrium steady states in direct analogy with the theory of equilibrium states : the principle is ...
Recurrence-free Vlasov model using kinetic phase point trajectories
Recurrence-free Vlasov model kinetic phase point trajectories
2010/11/12
A method of solution of the collisionless Vlasov equation, by following collisionless phase point trajectories, is presented. It is shown that by increasing the number of phase points, without enhanci...
Radial Regge trajectories for higher $\psi(nS)$ and $\psi(nD)$ states
Radial Regge trajectories higher $\psi(nS)$ $\psi(nD)$ states
2011/1/6
The masses of ((n + 1) 3S1) and (n 3D1) are calculated using the relativistic string Hamiltonian with “linear+gluon-exchange” potential. They occur in the range 4.5–5.8 GeV, in particular.
On trajectories of vortices in the compressible fluid on a two-dimensional manifold
the compressible fluid two-dimensional manifold
2010/11/17
For the model of a compressible barotropic fluid on a two dimensional rotating Riemmanian manifold we discuss a special class of smooth solutions having a form of a steady non-singular vortex moving ...