搜索结果: 1-15 共查到“unstable”相关记录90条 . 查询时间(0.074 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Unstable homotopy groups of indecomposable A_3^2-complexes
不可分解 A_3^2 配合物 不稳定 同伦群
2023/4/14
In this talk, I will introduce the methods for calculating the unstable homotopy groups of finite CW-complexes which builds on works of the relative James construction initiated by B. Gray in 1973 and...
Sliding-Window Correlation Attacks Against Encryption Devices with an Unstable Clock
Power analysis SW-CPA Jittered clocks
2018/4/9
Power analysis side channel attacks rely on aligned traces. As a counter-measure, devices can use a jittered clock to misalign the power traces. In this paper we suggest a way to overcome this counter...
MUTUAL COMPARATIVE FILTERING FOR CHANGE DETECTION IN VIDEOS WITH UNSTABLE ILLUMINATION CONDITIONS
Change detection moving object detection illumination changes mutual comparative filters
2016/7/27
In this paper we propose a new approach for change detection and moving objects detection in videos with unstable, abrupt illumination changes. This approach is based on mutual comparative filters and...
Cosmochemists find evidence for unstable heavy element at solar system formation
Cosmochemists unstable heavy element solar system
2016/3/14
UChicago scientists have discovered evidence in a meteorite that a rare element, curium, was present during the formation of the solar system. The finding ends a 35-year-old debate on its possible pre...
A class K of structures is controlled if, for all cardinals
λ, the relation of L∞,λ-equivalence partitions K into a set of
equivalence classes (as opposed to a proper class). We prove that
the clas...
A second order expansion of the separatrix map for trigonometric perturbations of a priori unstable systems
second order expansion separatrix map for trigonometric perturbations priori unstable systems
2015/9/25
In this paper we study a so-called separatrix map introduced by Zaslavskii-Filonenko [ZF68] and studied by Treschev and Piftankin [Tre98, Tre02,Pif06, PT07]. We derive a second order expansion of this...
PARAMETRIZING UNSTABLE AND VERY UNSTABLE MANIFOLDS
PARAMETRIZING UNSTABLE VERY UNSTABLE MANIFOLDS
2015/8/26
PARAMETRIZING UNSTABLE AND VERY UNSTABLE MANIFOLDS.
Decentralized Control of Unstable Systems and Quadratically Invariant Information Constraints
Unstable Systems Quadratically Invariant Information
2015/6/19
We consider the problem of constructing decentralized control systems for unstable plants. We formulate this problem as one of minimizing the closed-loop norm of a feedback system subject to constrain...
Effects of Unstable Shoes on Energy Cost During Treadmill Walking at Various Speeds
Rocker sole shoes oxygen consumption EMG RPE optimum speed
2015/5/13
In recent years, shoes having rounded soles in the anterior-posterior direction have been commercially introduced, which are commonly known as unstable shoes (US). However, physiological responses dur...
An Unstable Base Alters Limb and Abdominal Activation Strategies During the Flexionrelaxation Response
Electromyography erector spinae hamstrings trunk flexion
2015/3/18
The flexion-relaxation phenomenon consisting of an erector spinae silent period occurring with trunk flexion can place considerable stress upon tissues. Since individuals often flex their trunks while...
Peak and End Range Eccentric Evertor/Concentric Invertor Muscle Strength Ratios in Chronically Unstable Ankles: Comparison with Healthy Individuals
Unstable ankle strength ratios eccentric evertor concentric invertor
2015/3/11
The aim of this study was to evaluate the alterations in eccentric evertor/concentric invertor strength ratio and their importance in the chronically unstable ankle. Eight patients with chronic ankle ...
Emergence of unstable modes in an expanding domain for energy-conserving wave equations
Simulated energy wave equation the nonlinear schrodinger equation the coupling
2014/12/25
Motivated by recent work on instabilities in expanding domains in reaction–diffusion settings, we propose an analog of such mechanisms in energy-conserving wave equations. In particular, we consider a...
Congruence analysis of point clouds from unstable stereo image sequences
Stereo image matching 3D point tracking congruence analysis
2014/7/30
This paper deals with the correction of exterior orientation parameters of stereo image sequences over deformed free-form surfaces without control points. Such imaging situation can occur, for example...
Local Dynamics Near Unstable Branches of NLS Solitons
Local Dynamics Unstable Branches of NLS Solitons Analysis of PDEs
2012/7/11
Consider a branch of unstable solitons of NLS whose linearized operators have one pair of simple real eigenvalues in addition to the zero eigenvalue. Under radial symmetry and standard assumptions, so...
Long-lived and unstable modes of Brownian suspensions in microchannels
Long-lived and unstable modes Brownian suspensions microchannels Fluid Dynamics
2012/4/24
We investigate the stability of the pressure-driven, low-Reynolds flow of Brownian suspensions with spherical particles in microchannels. We find two general families of stable/unstable modes: (i) deg...