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 June 2016 Volume 35 Issue 6
Review on the wavefront optics
ZHONG Xihua
College Physics. 2016, 35(6): 1-4.
Abstract
(
1014
)
PDF
(1028KB) (
484
)
Related Articles
|
Metrics
Based on the analyses of the modern progresses of wave optics，this paper proposes a thesis that the modern wave optics is just the wavefront optics;creates a theoretical outline of wavefront optics，including the wavefront’s description and recognition，the wavefront’s superposition and interference，the wavefronts transformation and resolution，the wavefronts’s holograph and reconstruction，as well as the wavefront’s design and engineering.
Similarity of k ordering of atomic structure with mass spectrum of particles
ZHANG Guoying，DONG Xue，XIA Wangsuo
College Physics. 2016, 35(6): 5-7.
Abstract
(
781
)
PDF
(250KB) (
274
)
Related Articles
|
Metrics
The k ordering of atomic structure is introduced and the reasons of similarity of k ordering of atomic structure with the mass spectrum of particles are pointed out.
The extended trial function method for solving Bessel-like equations
Naranmandula
College Physics. 2016, 35(6): 8-10.
Abstract
(
787
)
PDF
(310KB) (
481
)
Related Articles
|
Metrics
Further extension of the trial function method proposed by earlier paper for solving linear independence solution of Bessel-like equations is presented and an extended trial function method is given. The extended trial function method can be used to solve more general type of Bessel-like equations.
Influence of a ferromagnetic material plane with low ridge on uniform magnetic field and its numerical simulation
WANG Fuqian
College Physics. 2016, 35(6): 11-14.
Abstract
(
689
)
PDF
(345KB) (
261
)
Related Articles
|
Metrics
The influence of a ferromagnetic material plane with low ridge on uniform magnetic field is studied by using SchwarzChristoffel transformation on the complex coordinate system of the complex number，and its magnetic vector distribution is obtained. The magnetic induction line maps are plotted by using the software MATLAB，the extent of influence of a ferromagnetic material plane with low ridge on uniform magnetic field is studied qualitatively.
Two-dimensional standing waves on annular plate as the inner boundary being cramped
FANG Yizhong，SHEN Han，WANG Gang，CUI Xintu，LIAO Deju，FENG Raohui
College Physics. 2016, 35(6): 15-19.
Abstract
(
866
)
PDF
(854KB) (
540
)
Related Articles
|
Metrics
The two -dimensional standing wave figures of an annular plate (Chladni patterns)as the inner boundary is clamped，are investigated experimentally and theoretically. It is found that the Chladni patterns can be precisely controlled by adjusting the frequency and position of the vibration source. Two kinds of patterns have been observed，one kind only has radial nodal lines (excepting the inner boundary)and the other has both of radial nodal lines and circular nodal lines. Furthermore，the radii of the circular nodal lines，the change rules of the eigen values，and the elastic modulus of the thin plate have been obtained. The results of experiments are consistent with the analytical solutions.
A brief analysis for the principle of superconducting magnetic levitation experiments
LU Junling，QIN Lianhua，GU Chen，REN Naijing
College Physics. 2016, 35(6): 20-28.
Abstract
(
3042
)
PDF
(1206KB) (
878
)
Related Articles
|
Metrics
The phenomenon of superconducting magnetic levitation is essentially that the force of the magnetic moment of a superconductor in an inhomogeneous magnetic field equalizes to its gravity accurately. Because the pinning effect，the magnetic moment of the imperfect type-II superconductor is of diamagnetism or paramagnetism as the magnetic field’s change，so the superconductor may appear to be suspended over a magnetic gorge，or flied below the magnetic gorge.
Inductor frequency characteristic and its application in RLC series resonant circuit
CHEN Guojie，CHEN Kui，ZHOU Youping，LI Bin
College Physics. 2016, 35(6): 29-32.
Abstract
(
1647
)
PDF
(471KB) (
1090
)
Related Articles
|
Metrics
The influence of inductor frequency characteristic on a RLC series resonant circuit is analyzed，and a method of roughly measuring the resonant frequency is introduced. The equations of the resonant curve half-peak bandwidths for the load resistor and LC component are derived，and the applying conditions of the equations are also discussed. Then，an inductor with high quantity factor is fabricated，and the experimental results are in agreement with the theoretical analysis. The results show that the higher the inductor’s Q is and the smaller the rL is，the narrower the resonant curve half-peak bandwidth is and the more accuracy the measurement is. In addition，the resonant curve of the load resistance is narrower than that of LC component when R is greater than 0.64 rL .
A theoretical research for measuring the velocity distribution of thermionic electrons with magnetron
ZHOU Yue
College Physics. 2016, 35(6): 33-35.
Abstract
(
846
)
PDF
(362KB) (
300
)
Related Articles
|
Metrics
It is pointed out that the result should be distribution of radial velocity in the experiment of the velocity distribution of thermionic electrons with magnetron. It is proved that the radial velocity distribution of thermionic electrons accords with the Maxwell velocity distribution.
An improved design of temperature measurement and control circuit for TC-Ⅱ heat conductivity measuring apparatus
YANG Yunjing， JIA Genliang， ZHANG Min
College Physics. 2016, 35(6): 36-40.
Abstract
(
813
)
PDF
(458KB) (
399
)
Related Articles
|
Metrics
TC-Ⅱ heat conductivity measuring apparatus can be used to measure the heat transfer coefficient of material based on the stability method. However，experimental teaching activity shows that students have difficulty in determining the steady state using the TC-Ⅱ measuring apparatus due to long unsteady transition time，and the thermocouple temperature measurement needs cold end temperature compensation and the linear approximation between thermoelectric potential and the temperature. Therefore，the accuracy and repeatability of the students’measurement results are affected by the above issues. This paper proposes a temperature measurement and control improved circuit with a simple structure. It can effectively improve the accuracy and reproducibility of thermal conductivity measurement.
Logic and History of Physics
ZHANG Hanzhuang
College Physics. 2016, 35(6): 41-47.
Abstract
(
731
)
PDF
(688KB) (
406
)
Related Articles
|
Metrics
The logic and brief history of the knowledge systems in the seven basic physical fields aresummarized. The purpose of the paper is to help the beginner of physics learning to broaden their vision and improvetheir enthusiasm of study physics as well as to cultivate the abilities to analyze and solve problems.
Application and feasibility analysis of the evaluation system of basic knowledge in thermodynamics of college physics
HUANG Jinli，MENG Hushen，LI Zhengliang，HUANG Guohua，YU Ailun
College Physics. 2016, 35(6): 48-53.
Abstract
(
758
)
PDF
(552KB) (
460
)
Related Articles
|
Metrics
By using the evaluation system of the basic knowledge in thermodynamics of college physics，the degree of students’mastery of basic knowledge can be tested and evaluated when they study the thermodynamics. The effect of students’learning is known and the quality of teaching is improved. The results of the tests show that this system is effective and feasible for evaluation of basic knowledge.
Experimental research on the relationship between wave velocity and surface tension
ZHANG Zhigang，ZHANG Xi，ZHANG Limiao，CHEN Jing
College Physics. 2016, 35(6): 54-58.
Abstract
(
1236
)
PDF
(1350KB) (
537
)
Related Articles
|
Metrics
According to the theoretical relationship between wave velocity and surface tension，we design the experiment in a range of temperature and analyze the experimental results. The U - tubes we applied in the experiment are self-made ones. We measure the surface tension of the liquid and video the process of the liquid transition. The specialty of this process is the footage of the clock，which we also video during the experiment. If one displays our video on computer by each frame，one will see the peak of the wave and the exact time simultaneously. If one divides the distance of the peak movement with time，one can get the speed of the waves. An involved method is compared with the traditional ones in this experiment，the new method makes the experiment easier in process and precise in measurement.
Following the trend of E-times———Build a new form of textbook of mechanics
GAO Jian，XIN Pei，CHENG Fu ping
College Physics. 2016, 35(6): 59-61.
Abstract
(
1119
)
PDF
(935KB) (
348
)
Related Articles
|
Metrics
For undergraduates who majored in physics，mechanics is the first main basic course they meet. The teaching result of mechanics plays a crucial role in the study of followup courses. The teaching effect of a course is influenced by many factors，of which the teaching book is an important one. The teaching book mechanics which written by professor Zhang Hanzhuang of Jilin University is one of the excellent mechanics teaching books published by Higher Education Press. This paper focuses on the characteristics of combining the logic and history of physics of the book.
Paul Ewald and his relation with Max Born
HOU Yude， HOU Menghan
College Physics. 2016, 35(6): 62-65.
Abstract
(
1145
)
PDF
(433KB) (
365
)
Related Articles
|
Metrics
Paul Ewald was a good physicist on X-ray crystallography. The lattice dynamics was a field where Max Born worked all his life. Paul Ewald and Max Born met and became friends in their earlier life，they regarded each other with respect，and appreciated the academic contribution made by each other. When they had different opinions，they could quarrel vehemently，and had nothing to harm to their friendship，because the aim they quarreled about was to find the truth of fact，and had none selfish. This kind of arguments hardly happened between politicians or litterateurs，even average persons. The attitude of scientists to face facts but not against people are worth learning for all the people in modern society.
Just Accepted
