Abstract:建立了Sobolev空间带S(R)(S≥0)的小波框架展开的局部化定理,使得L2(R)的小波框架展开局部化,只是该定理S=0的特例.

Abstract:The localization theorem of wavelet frame expansion formula in strip of Sobolev spaces is established,such that a localization theorem of wavelet frame expansion in L 2(R) is only a particular example of this theorem when S =0.

Abstract:The boundedness of fractional integral operators with homogeneous kernel in weak type Hardy spaces is discussed when the kernel of the operators satisfies Dini condition.

Abstract:A new displacement stress vector and potential vector is defined,then a new transfer matrix is deduced.The transfer matrix is very simple and its elements are all real and dimensionless. These special advantages make our method very stable in numerical c

Abstract:The process of roll forming is studied by holographic interferometry.Based on the process engineering transformation,single hologram interferometer's method,multi peep door's method and stripe drifting technology,the feature and distribution of 3 dimens

Abstract:Compound including fluorescein and its polymer were synthesized.The fluorescence property of this polymer in different solvents was detected to choose an excellent solvent.Lactic acid was used to quench the fluorescence of the polmer in alcohol.It was fou

Abstract:As the Fe 2+ content increases upon reduction, infrared spectra of nontronite indicate shifts to lower wave number in peaks located at 3 570, 1 030, and 821 cm -1 , which are assigned to vibrational modes for O-H stretching, Si-O b(basal oxyg

Abstract:According to the mathematical models for flank and flute of new drill (drill point termed the non coaxial helical drill point), formulae for cutting angles of the cutting lip and chisel edge and for heel clearance angle are deduced based on their definti

Abstract:The CNC machine positional servo sytem is concerned and the theoretical analyses aiming at the general PID controller and fuzzy controller are given.A fuzzy parameters adaptive PID control of digital positional servo system is developed on the basis of th

Abstract:采用中凸桶面活塞且其顶部内腔设置冷却油道和收口倾角为20°的ω形燃烧室以及单槽双片活塞环等结构设计使180型柴油机的性能明显改善.

Abstract:采用中凸桶面活塞且其顶部内腔设置冷却油道和收口倾角为2 0°的ω形燃烧室以及单槽双片活塞环等结构设计使 1 80型柴油机的性能明显改善

Abstract:The regularity which the estimation of B parameters varying with fractional delay in generalized Z transformation is analyzed.And the necessary and sufficient condition of the fractional delay varying with time is obtained and proved theoretically.Accordi

Abstract:By applying the Lyapunov stability theory,the robustness stability and stability decaying rate of a type of uncertain nonlinear system with multiple time delays and bounded perturbations are studied.Sufficient conditions of robustness stability and stabi

Abstract:The basic principle and method to build the nonlinear random dynamic system's Lyapunov function by using the random first integral is discussed,and on this basis,the isolated subsystem's first integral and random large scale system's Lyapunov function are

Abstract:A new power loss forecast method is proposed. The method is based on wavelet neural network in which the nonlinear wavelet basis function is used as the excitation functions of neurons. The configuration and the parameters of the wavelet neural network ar

Abstract:The ANLOEC(Artificial Neural network Linear Optimal Excitation Controller)is presented.The ANLOEC combines the advantage of neural network and linear optimal control,and improves efficiently the steady state and transient state qualties of single mac

Abstract:A kind of new dust removing method is presented,by which the dust particles are pre electrified and then pass through filter layer to be seperated.Analysis shows that the pre eletrified device can improve the performance of dust remover.

Abstract:Hunan Province is the region, where the appearance of acid rain is high-intensity. The main features of acid rain of Hunan Province based on the monitor data from 1990 to 1999 are summarized and the main factors that affect the forming and distribution of

Abstract:The time history analysis system NLA for high rise building with braced frame developed by the authors is introduced.Two examples for a ten story frame with brace and no brace have been showed.The result shows that high rise building with braced fram

Abstract:The 3 dimensions non linear dynamical model of inclined cable in inertial reference system is set up with geometrical non lineariy.Based on the Newton method a set of partial difference equations are given,and then are diverted into a set of ordinary d

Abstract:General theories and conventional methods of slope stability analysis are discussed systematically and selectively, the specific applicability of which is also stated briefly in connection with the failure of embankment engineering caused by eventual floo

Abstract:A new experimental procedure is proposed based on instrumental variable method for analyzing wall surface heat transfer process and deducing wall surface heat transfer coefficient. Experiment and predictor test show that this procedure can fully reflect w

Abstract:Based on the questionnaire and establishment of the index system, a mathematical model is developed to measure the technological innovation of small and medium sized enterprises(SMEs) in Hunan province. Results show that the current status of technologic