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 May 2013 Volume 32 Issue 5
著者文摘
Some thermodynamic problems for a finite-size system
. 2013, 32(5): 1-1.
Abstract
(
682
)
PDF
(280KB) (
632
)
Related Articles
|
Metrics
Some fundamental thermodynamic problems in the system deviating from the condition of thermodynamic limit are discussed. It is shown that size effects bring to several novel characteristics and consequently some familiar conclusions in the text books of statistical physics become invalid for a finite-size system.
Study of distribrition of mixed ideal gas molecules along height in the gravitational field
. 2013, 32(5): 3-3.
Abstract
(
939
)
PDF
(538KB) (
373
)
Related Articles
|
Metrics
The maximum entropy principle is a basic law of nature,which is used to study the distribution of mixed ideal gas molecules along height in the gravitational field,the probability density distribution of molecule of each component gas is obtained,the relationship which shows how molecular number density of each component changes with height.In terms of the Monte Carlo method,computer simulation experiment is performed for studying the distribution of mixed ideal gas molecules in the gravitational field.The simulation result is compared with the theoretical one,and it is found that they are in good agreement with each other.This demonstrates that the theory is successful and the computer simulation adequately reflects the actual situation in mixed gas.
Solitary solutions of the multi-component BEC in the nonlinear lattices
. 2013, 32(5): 9-9.
Abstract
(
772
)
PDF
(417KB) (
418
)
Related Articles
|
Metrics
As a coherent matter wave, the Bose-Einstein condensate （BEC） provides a playground for the investigation of the macroscopic quantum phenomenon. The nonlinear optical lattice, which is consisted of two counter-propagating laser beams, is a powerful and widely used tool for the controlling of the dynamics of the coherent matter wave. In view of the potential applications of BEC, two or more independently grown condensates provide extra controllable degrees of freedom and can be used in many areas, such as quantum metrology and quantum com- putation. In this paper, a multi-mode description is introduced to characterize the multi-component coherent matter wave. To determine the evolution property of the multi-mode matter wave in a nonlinear optical lattice, we solve the multi-mode coupled nonlinear equations. A set of analytical bright soliton solutions are constructed with a similarity transformation.
Dynamics of a small hard ball driven by gravity falling down a slope with staircase profile
. 2013, 32(5): 13-13.
Abstract
(
812
)
PDF
(357KB) (
703
)
Related Articles
|
Metrics
Dynamics of a small ball falling down a slope with staircase profile, which includes the process that the small ball moves from the edge of a stair to the position where it begins to take off and the process that the small ball turns to pure rolling from relative sliding when it reaches the surface of next stair, is analyzed. When the collision in vertical direction is full inelastic collision, the speed and angular velocity of rolling at every step can be calculated.
Oscillation of a spring with nonzero mass and elastic force
. 2013, 32(5): 17-17.
Abstract
(
683
)
PDF
(173KB) (
424
)
Related Articles
|
Metrics
When a spring with nonzero mass oscillates, the force of the spring in different positions is analyzed and the physical interpretation of the question is presented.
Simple derivation of the rotation inerita of a rigid triangular frame about its center-of-mass axis
. 2013, 32(5): 19-19.
Abstract
(
1020
)
PDF
(159KB) (
430
)
Related Articles
|
Metrics
By using physical methold, the center of mass of an arbitrary rigid triangular frame and simple operation of the rotation inertia of a rigid triangular frame about its center-of-mass axis are determined quickly.
Two-dimensional Green function of the first kind of a simply connected domain with complex shape boundary
. 2013, 32(5): 20-20.
Abstract
(
848
)
PDF
(1175KB) (
450
)
Related Articles
|
Metrics
Two-dimensional Green function of the first kind of simply connected domain with complex shape boundary is calculated by conformal mapping and mirror image method, and its maps of contour line are plotted by using the mathematical softwaer MATLAB.
Theoretical study of grating constant of ultrasonic grating
. 2013, 32(5): 24-24.
Abstract
(
1193
)
PDF
(266KB) (
1084
)
Related Articles
|
Metrics
Ultrasonic grating is a dynamic phase grating, and it is different from ordinary static phase grating. When a laser beam vertically passes through the ultrasonic standing waves, the diffraction field contains new frequency components, so its space spectrum is also changed. Based on the principle of Fourier optics, the optical field of a laser beam vertically passing through the ultrasonic standing waves in Raman-Nath diffraction is derived rigorously, and then the space spectrum of diffraction field of ultrasonic standing wave is obtained. Thus grating constant of ultrasonic grating is deduced strictly.
A proof of the node theorem of wave functions for bound states of one-dimensional stationary Schrodinger equation
. 2013, 32(5): 27-27.
Abstract
(
2804
)
PDF
(167KB) (
1479
)
Related Articles
|
Metrics
Based on the variation theorem in quantum mechanics, we prove the node theorem of wave functions for bound states of the one-dimensional stationary Schrodinger equation. The basic idea is constructing proper trial wave functions according to the nodes of the bound states.
Comparison and thought for the discourses of ＂statistical interpretation of wave function＂ in Chinese and foreign quantum mechanics textbooks
. 2013, 32(5): 29-29.
Abstract
(
1062
)
PDF
(555KB) (
583
)
Related Articles
|
Metrics
As one of the most important foundation in modern physics,quantum theory has had a deep impression on human beings.This paper concentrates on its basic concept ＂statistical interpretation of wave function＂ and analyzes the train of thought and discussion depth and width of four Chinese and foreign quantum mechanics textbooks,so as to clearly understand teaching focuses and advantages of each book.
Experimental imaging research on generalized phase-shifting digital holography with reflecting object
. 2013, 32(5): 34-34.
Abstract
(
743
)
PDF
(680KB) (
435
)
Related Articles
|
Metrics
The effect of holography on optical experimental teaching and the development of digital holography and phase-shifting digital holography are introduced.The principle and formulae of phase shifts extraction and objective reconstruction for generalized phase-shifting digital holography are given.The phase-shifting digital holography imaging setup is designed to use in ordinary optical experimental laboratory,introduced to undergraduate experimental teaching.Experimental research is carried out by using reflecting object to demonstrate the availability and effectiveness of this imaging method here.
Research on the origin of observable principle
. 2013, 32(5): 38-38.
Abstract
(
785
)
PDF
(654KB) (
515
)
Related Articles
|
Metrics
Quantum mechanics is the greatest scientific contrbution in the 20th century,which is also the most influenced scientific theory to human civilization in the century.But,there is confusion in the cognition to the origin of some important thoughts on quantum mechanics.The observable principle is a key way of thinking to establish quantum mechanics.There are sorts of opinions on the origin of the observable principle.Through a comprehensive analysis of reliable materials,we propose the conclusion that the thought what is called Heisenberg＇s observable principle,directly came from the influence of Max Born and his school,Born had clearly expressed the principle in his paper before what Heienberg did.
Negative refraction of phononic crystals
. 2013, 32(5): 44-44.
Abstract
(
915
)
PDF
(1869KB) (
546
)
Related Articles
|
Metrics
This paper briefly reviews both theoretical and experimental progress in negative refraction（NR） of phononic crystals,and suggests understanding the mechanism underlying the NR by studying the scattering of waves in periodical structures on the basis of the idea of symmetry.Then,based on a finite element approach,this paper shows the phenomena of NR by adjusting parameters of a host medium.
Circular restricted three-body problem in classical electromagnetism
. 2013, 32(5): 52-52.
Abstract
(
871
)
PDF
(441KB) (
368
)
Related Articles
|
Metrics
Circular restricted three-body problem is widely discussed in celestial mechanics with its numerous applications such as the research of asteroids and spacecrafts.Based on a rotating reference frame,the same problem is studied in electromagnetism.Some characters,especially quasi-Lagrange points,are derived with similarities in gravitational environment,and their practical worth is suggested.
Investigation of the spectral features of LED lamp for planting the mustard
. 2013, 32(5): 57-57.
Abstract
(
729
)
PDF
(678KB) (
537
)
Related Articles
|
Metrics
We adopt the red LED at wavelength of 660 nm and the blue ones at the wavelength of 450 nm to construct the LED lamp cultivating mustard,the photon flux density used is 150 μmol·m-2·s-1.The experiment includes two groups with different filling time,and each group is divided into 4 groups in which R/B respectively 9∶1,7∶1,5∶1 and one use the natural light.After 30 days cultivation,we use Arnon＇s method with acetone and anhydrous ethanol with proportion to 2∶1 to detect the concentration of chlorophylls of mustard.The experiment results show that the chlorophyll concentration under the LED lamp with R/B ratio 7∶1 undergoes the highest one.
Just Accepted
