Loading...
NianQi Search
Quick Search
Advanced Search
Toggle navigation
Home
About Journal
Editorial Board
Instruction
History
Indexed in
Subscription
Contact Us
中文
Office
Office
Submission/Manuscript
Peer Review
Editor Work
Office Work
Editor-in-Chief
Journal
Just Accepted
Current Issue
Archive
Advanced Search
Most Read
Most Download
E-mail Alert
RSS
Wechat
Table of Content
20 November 2008 Volume 27 Issue 11
著者文摘
The mathematical analysis in the foundation of Riot-Savart law
. 2008, 27(11): 1-1.
Abstract
(
818
)
PDF
(486KB) (
846
)
Related Articles
|
Metrics
The mathematical analysis in the foundation of Blot-Savart Law reveals that the Biot-Savart law can be deduced directly from the second experiment designed by Blot.Thus the second experiment is a graceful experiment and has special value in physics teaching from the mathematical viewpoint.
The mathematical analysis in the foundation of Riot-Savart law
. 2008, 27(11): 5-5.
Abstract
(
1182
)
PDF
(260KB) (
2011
)
Related Articles
|
Metrics
The mathematical analysis in the foundation of Blot-Savart Law reveals that the Biot-Savart law can be deduced directly from the second experiment designed by Blot.Thus the second experiment is a graceful experiment and has special value in physics teaching from the mathematical viewpoint.
Derivation of the common eigenvectors of two particles＇ compatible observables
. 2008, 27(11): 8-8.
Abstract
(
859
)
PDF
(245KB) (
489
)
Related Articles
|
Metrics
The common eigenvectors ｜η〉 of two particles＇ compatible observables x1 -x2 and p1 ＋p2 are derived in the Fock＇s space by virtue of the IWOP technique. An effective method for solving this kind of problem is offered.
Numerical analysis for motion of vertically falling body
. 2008, 27(11): 11-11.
Abstract
(
916
)
PDF
(363KB) (
1380
)
Related Articles
|
Metrics
The motion of a vertically failing body is analyzed where the drag force and damping force of air is considered. Furthermore, the motion of a falling iron ball in Galileo＇s experiment on the Pisa Tower and a falling raindrop are numerically described with MATLAB.
The change of radius and velocity of the rising bubble in water
. 2008, 27(11): 14-14.
Abstract
(
1160
)
PDF
(360KB) (
1183
)
Related Articles
|
Metrics
The velocity and locate formula of a rising small bubble in the water are derived from the second law of Newton. The variation rate of radius of the rising bubbles in the water is obtained by using the state equation of ideal gas and the pressure difference formulas of the spherical liquid surface. Taking into account the varying regularity of the radius and locate of bubbles with time in the rising process, we simulate the rising process of small bubble under difierent incipient conditions by using computer.
A simple method for calculating induced charges of a conductor linking with the ground
. 2008, 27(11): 18-18.
Abstract
(
1036
)
PDF
(268KB) (
581
)
Related Articles
|
Metrics
A textbook exercise is extended into proposition,which is proved by using the Green exchange theorem. We examine several examples to show that the present proposition can be applied to calculate simplify the induced charges of a conductor linking with the ground.
Research on the electrostatic field outside of an isotropic dielectric spheroid which an electric dipole located on
. 2008, 27(11): 20-20.
Abstract
(
1054
)
PDF
(366KB) (
718
)
Related Articles
|
Metrics
The solutions of Laplace and Poisson equations for electrostatic field belong to the multiply connected domain composed of an isotropic dielectric spheroid which an electric dipole located on are obtained by using the separation variable method. The distribution of potential inner and exterior of dielectric spheroid, as well as polarization charges appearing the surface of sphere are given. By means of the solution of the second-order nonlinear differential equation and the software package facility of Mathematica 5.0, we get the function of electric field lines outside of an isotropic dielectric spheroid and plot figures of the relative equipotential and electric field lines. Finally, the results are discussed.
The equivalent resistance of regularly connected polygon resistance network
. 2008, 27(11): 24-24.
Abstract
(
831
)
PDF
(260KB) (
613
)
Related Articles
|
Metrics
The regularly connected polygon resistance network can be predigested to be two same parts which connect by parallel connection, one part is transformed into a ladder-shaped resistance network. For the difference of odd and even polygons of the ladder-shaped network, we get the formula of regularly connected polygon resistance network through corresponding transformation. The conclusion is also suit to some regularly connected polygon capacitor networks.
Proof of Young-Laplace equation in terms of Gibbs free energy
. 2008, 27(11): 27-27.
Abstract
(
1429
)
PDF
(184KB) (
1533
)
Related Articles
|
Metrics
A known ideal experiment used to prove the Young-Laplace equation of spherical liquid drop is analyzed by using the Gibbs free energy. We point out the mistakes of the reference [ 7 ] and give the correct formulation.
The higher excited states of the hydrogen atom in a non-uniform electric field
. 2008, 27(11): 29-29.
Abstract
(
745
)
PDF
(383KB) (
353
)
Related Articles
|
Metrics
The energy levels and the wave functions of two higher excited states （n = 4and 5） for the hydrogen atom in a non-uniform electric field are investigated by using the Mathematica. The level splitting is computed. The three-dimensional image of the electron probability angle distribution for the hydrogen atom in a non-uniform electric field is plotted.
Dual balanced detection technique for eliminating polarization induced signal fading in optical fiber interferometer
. 2008, 27(11): 34-34.
Abstract
(
752
)
PDF
(281KB) (
606
)
Related Articles
|
Metrics
A novel method for eliminating the polarization induced signal fading is presented, which is singlearmed optical fiber interferometer based on the dual balanced detection. A method for eliminating polarization-induced signal fading is analyzed theoretically. The experimental results show that the method is applicable and consistent with theoretical analysis.
Data analysis on the Ge single crystal Hall effects at different temperatures
. 2008, 27(11): 37-37.
Abstract
(
1246
)
PDF
(366KB) (
1117
)
Related Articles
|
Metrics
With digital computer control and data acquisition system, this paper carried out the Ge single crystal （6.0 mm long, 4.0 mm wide, 0, 6 mm thick） Hall effect from 77 K to 420 K, attained Hall coefficient RH （T）, Hall conductivity σ（T）, and Hall mobility μH（T） of the temperature dependence through analysis of the Hall voltage. This experiment results make a full impact for students on comprehending the knowledge of semiconductor physics.
The actual contribution of Born to quantum mechanics
. 2008, 27(11): 40-40.
Abstract
(
1038
)
PDF
(1188KB) (
1172
)
Related Articles
|
Metrics
There are certain ＂verdict＂ on the contributions of Born and Heisenberg to the process of creating matrix mechanics in many related writings about the history of physics. The basic idea is that Heisenberg was the founder of matrix mechanics, and Born was only a ＂BoLe＂ who was a good judge of Heisenberg＇s talent, just had some specific mathematical contributions to the establishment of matrix mechanics. But, lots of documents irrefutably show that the fact is not true. After research work for many years, the Gottingen school led by Born had done all the necessary preparatory works for the establishment of quantum mechanics from mathematical tool to mode of thinking. The breakthrough by Heisenberg was a natural extension of these preparations. In this paper, besides necessary analysis, the author puts emphasis on.reliable conclusions from authoritative literatures. The author believes that this style of presentation would be more convincing and should change people＇s prejudices more easily.
Non-thermal effect of electromagnetic field on biological system and its mechanism
. 2008, 27(11): 50-50.
Abstract
(
780
)
PDF
(439KB) (
881
)
Related Articles
|
Metrics
Non-thermal effect of electromagnetic field on biological system is produced in terms of extremely low frequency electromagnetic field （ELFEF） and radio frequency electromagnetic, field （RFEF）. The progress of non-thermal effect of ELFEF and RFEF on biological system is reviewed and some problems are proposed.
Computer simulation of double-slit electron diffraction
. 2008, 27(11): 53-53.
Abstract
(
906
)
PDF
(256KB) (
671
)
Related Articles
|
Metrics
Based on the intensity distributing function, we simulate the double-slit electron diffraction by using the visual Basic program. The electron diffraction pattern is vividly reconstructed in the simulation, and electrons can appear on the screen one by one by controlling the generation speed of electron. This simulation helps one to understand the probability property of electron wave. The program is simple and easy to learn, which is convenient for further development.
Just Accepted
