The real solution to scalar field equation in 5D black string space

After the nontrivial quantum parameters Ω _n and quantum potentials V _n obtained in our previous research, the circumstance of a real scalar wave in the bulk is studied with the similar method of Brevik and Simonsen (Gen. Rel. Grav. 33:1839, 2001). The equation of a massless scalar field is solved numerically under the boundary conditions near the inner horizon r _e and the outer horizon r _c . Unlike the usual wave function Ψ_ωl in 4D, quantum number n introduces a new functions Ψ_{ωl n} , whose potentials are higher and wider with bigger n. Using the tangent approximation, a full boundary value problem about the Schrödinger-like equation is solved. With a convenient replacement of the 5D continuous potential by square barrier, the reflection and transmission coefficients are obtained. If extra dimension does exist and is visible at the neighborhood of black holes, the unique wave function Ψ_{ωl n} may say something to it.     

扁平水槽的应用

无色透明的有机玻璃扁平水槽,它的特点是可见度好,不易碎,易加工维修,绝缘性好,适宜做电化学实验。一、实验装置1.扁平水槽的制作(见图1)     

Wavelet basis analysis in perturbed periodic KdV equation

I.IntroductionandSignsThephenomenaofnaturealwaysoccursatacertaintimeandacertainspace.Thecomplexityoftimeandspaceisduetodescribingtherelationbetweentimeandspaceandthelongtimebehaviorofsystembyusingthepartialdifferentialequation.Traditionally,thestatefunctionisexpandedinFotlrierseries,andthepartialdifferentialequationistransformedintotheordinarydifIYrentialequationwiththeevolutionofFouriercoefficientastimegoeson.ButitisverydifficulttoknowwelltheFouriercoefficientwhichplaysanimportantroleasthe…     

弱阻尼KdV方程样条小波基下的近似惯性流形

利用样条小波基构造弱阻尼ＫｄＶ方程的近似惯性流形．该项工作将被用于研究该类方程的长期动力学行为及局部性质．     

用软对策论分析均衡价格的形成机制

利用对抗分析法,从供求双方的基准框架出发,根据各自的建议解与反击策略,分析了双方可能面临的悖论,通过消除理性悖论的可能手段来分析价格随着市场供求状况变化而变化的情况,进而对完全竞争市场条件下均衡价格的形成机制作出解释。     

An ab initio study on the vibrational and electronic spectra of the molybdenum–sulfur clusters with Mo2OnS4−n(n=0–4) core

Using the ab initio method, the vibrational and electronic spectra of binuclear molybdenum clusters which contain Mo₂O_nS_4−n(n=0–4) core were investigated. The main absorption bands in the IR spectra of these clusters are assigned and compared with each other, especially for the case of the trans isomers. The electronic spectra were studied by performing the CIS calculations. The ground state and the first excited state of the clusters were discussed by using the natural bond orbital method. It is shown that the band corresponding to the longest wavelength can be assigned to three kinds of transition types. Two transitions, σ(Mo–Mo)→π*(Mo–X_t)(X=S,O) and σ(Mo–Mo)→σ*(Mo–Mo), can be seen in most cases.     

青蒿素抗疟机理研究最近的重要进展

１．论文名称ＵｎｉｆｉｅｄＭｅｃｈａｎｉｓｔｉｃＦｒａｍｅｗｏｒｋｆｏｒｔｈｅＦｅ（Ｉ）－ＩｎｄｕｃｅｄＣｌｅａｖａｇｅｏｆＱｉｎｇｈａｏｓｕａｎｄＤｅｒｉｖａｔｉｖｅｓ／Ａｎａｌｏｇｕｅｓ．ＴｈｅＦｉｒｓｔＳｐｉｎ－ＴｒａｐｐｉｎｇＥｖｉｄｅｎｃｅ...     

扫描近场光学显微镜光纤锥中导波反射特性

利用局部模耦合模型理论上分析了扫描近场光学显微镜光纤的光场性质,给出光纤维中存在的正,反向传播的基模场微分方程,以及基模反向耦合系数的数值计算结果,其最高反射系数达１％左右。这种反射光可起着光纤维激光器谐振腔输出端镜的作用。     

Fractal Characteristics Investigation on Light Scattering from Two Dimensional Rough Surface

A normalized two dimensional band-limited Weierstrass fractal function is used for modeling the rough surface. Based on Kirchhoff theory, an analytic solution of the average scattering field and the variance of scattering intensity are derived with emphasis on examining the relation of fractal dimension with the scattering pattern. The important conclusion is obtained that the diffracted envelope slopes of scattering pattern can be approximated to a slope of linear equation.     

粗锌中镉的测定方法研究

样品用硝酸-盐酸分解,采用扣除背景的方式消除高含量的锌对低含量镉测定的影响。优化了镉测定的仪器条件,建立了粗锌中镉含量的测定方法。用于测定粗锌中镉,结果的相对标准偏差(RSD,n=11)为0.95%～6.3%。按照实验方法对粗锌样品进行加标回收实验,加标回收率为98.0%～102%。与ICP-AES法测定结果基本一致,能满足日常对粗锌中镉含量的测定要求。