搜索结果: 1-15 共查到“Perturbation”相关记录179条 . 查询时间(0.468 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Geometric Singular Perturbation Theory and Traveling Pulses with Monotone Tails in a Diffusive Rosenzweig MacArthur Model
扩散 罗森茨威格麦克阿瑟模型 几何奇异摄动理论 单调尾巴行进脉冲
2023/5/5
In this talk, we first briefly review history of the geometric singular perturbation theory, then talk about the traveling pulses for a diffusive Rosenzweig MacArthur model. We show the existence of t...
中国地质大学科学技术发展院吴亚飞(博士研究生)，李建威等 资源学院/GPMR国家重点实验室Geochimica et Cosmochimica Acta, Available online 3 November 2018. Metal remobilization and ore-fluid perturbation during episodic replacement of auriferous pyrite from an epizonal orogenic gold deposit
金硫化物；不同成分；性质流体；体系中；溶解度
2021/10/20
近日，中国地质大学资源学院和GPMR国家重点实验室李建威教授团队在国际地球化学顶级期刊Geochimica et Cosmochimica Acta (Nature Index)上发表了关于浅成造山型金矿床含金黄铁矿热液交代过程中金的再富集及成矿流体演化的研究成果。论文第一作者吴亚飞是中国地质大学与澳大利亚科廷大学联合培养的博士研究生，通讯作者为李建威教授。
Direct Measurement of the Protein Response to An Electrostatic Perturbation That Mimics the Catalytic Cycle in Ketosteroid Isomerase
hydroperoxide lipids GUV photosensitization methylene blue
2016/5/25
Understanding how electric fields and their fluctuations in the active site of enzymes affect efficient catalysis represents a critical objective of biochemical research. We have directly measured the...
Vibrational Stark Effects of Nitriles II. Physical Origins of Stark Effects from Experiment and Perturbation Models
platinum titania catalyst flame synthesis one-step oxidation screening
2016/5/23
Vibrational Stark effects, which are the effects of electric fields on vibrational spectra, were measured previously for the C−N stretch mode of several small nitriles, yielding difference dipol...
Local Response of Topological Order to an External Perturbation
Local Response Topological Order External Perturbation
2016/1/23
We study the behavior of the Re ′nyi entropies for the toric code subject to a variety of different perturbations, by means of 2D density matrix renormalization group and analytical methods. We find t...
The thin film equation with non zero contact angle:A singular perturbation approach
thin film equation non zero contact angle singular perturbation approach
2015/10/15
In this paper we prove the existence of weak solutions for the thin film equation with prescribed non zero contact angle and for a large class of mobility coefficients, in dimension 1. The existence o...
ABILITIES OF DEMETER SATELLITE IN OBSERVATION OF PHYSICAL SIGNATURES PERTURBATION OF IONOSPHERE ASSOCIATED WITH SEISMIC ACTIVITIES
Seismic Activities Physical Signatures
2015/9/8
Earthquake is one of the most horror natural hazards that cause a lot of damage.
So, humans always have been looking for approaches to predict it so that they can
reduce its damage. For this purpose...
Perturbation analysis of entrainment in a micromechanical limit cycle oscillator
Resonance MEMS Bifurcation Perturbation
2015/8/27
We study the dynamics of a thermo-mechanical model for a forced disc shaped, micromechanical limit cycle oscillator.The forcing can be accomplished either parametrically, by modulating the laser beam ...
Robust stability of a linear multivariable system, in the sense of robustness under multiplicative transfer function perturbation, is necessarily preserved under sufficiently small perturbations in th...
Taking Perturbation to the Accuracy Frontier: A Hybrid of Local and Global Solutions
Dynare Perturbation Hybrid Accuracy Numerical methods Approximation
2015/7/21
Local (perturbation) methods compute solutions in one point and tend to deliver far lower accuracy levels than global solution methods. We develop a hybrid
method that solves for some policy function...
Wellsprings of Creation:How Perturbation Sustains Exploration in Mature Organizations
Disruption Innovation and Management Business Processes Opportunities Creativity
2015/4/22
Organizations struggle to balance simultaneous imperatives to exploit and explore, yet theorists differ as to whether exploitation undermines or enhances exploration. The debate reflects a gap: the mi...
Matter-wave solitons in the presence of collisional inhomogeneities: Perturbation theory and the impact of derivative terms
Dynamic soliton atomic scattering length nonlinear dynamic
2014/12/24
We investigate the dynamics of matter-wave solitons in the presence of a spatially varying atomic scattering length and nonlinearity. The dynamics of bright and dark solitary waves is studied using th...
Recently methods have been developed which exploit the chiral symmetry of QCD in order to make rigorous contact with low energy particle physics phenomenology. In these lectures we present a pedagogic...
2-LOOP ANALYSIS OF VECTOR-CURRENT PROPAGATORS IN CHIRAL PERTURBATION-THEORY
Isospin hypercharged vector breeding experts chiral perturbation theory
2014/12/23
We perform a calculation of the isospin and hypercharge vector-current propagators (ΔV33μν(q2) and ΔV88μν(q2)) to two loops in chiral perturbation theory. The analysis is carried out with straight-for...
On the Marriage of Chiral Perturbation Theory and Dispersion Relations
Dispersion relations chiral perturbation theory gw PI
2014/12/23
I describe the methodology for the use of dispersion relations in connection with chiral perturbation theory. The conditions for matching the two formalisms are given at $O(E^2)$ and $O(E^4)$. The two...