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单词 Electromagnetic field
例句
1. The electromagnetic field strength becomes weaker as you move further away from high voltage cables.
2. Some people are worried that electromagnetic fields from electric power lines could increase the risk of cancer.
3. But the electromagnetic field has an infinite number of variables,() one for each point in spacetime.
4. People were also worried that electro-magnetic fields could destroy the body's resistance to infection.
5. At relatively high pressure, in addition to electromagnetic field and electron's Coulomb scattering by gas molecules, plasma instability would result in decrease of propagation efficiency.
6. Electromagnetic field theory based on Maxwell's equations(field method) and circuit theory based on Kirchhoff's laws(circuit method) are the main tools to analyze transmission line problems.
7. The electromagnetic field integral equation in the quasi-optical cavity is obtained using the dyadic Green's function.
8. A steady state plasma is maintained by electromagnetic field and ambipolar diffusion of charged particles is caused by electrostatic field of space charge.
9. The electromagnetic field distribution was studied to explain the increased electromagnetic force after installing permanent magnets in a movable magnetic coils control rod drive mechanism.
10. With this idea the modern notion of the electromagnetic field was born.
11. The results show that under the vertex electromagnetic field in channel, there exist the flow along the channel axes and the secondary circulation flow in the inlet and outlets of the channel.
12. By using a two-dimensional, time-dependent electromagnetic field model (EM model), the spherics and red sprite phenomenon is studied.
13. Analogy is the only way to start, and the electron and the electromagnetic field the only place.
14. The antennas are controversial because researchers disagree over whether the electromagnetic fields from radio frequencies can cause leukemia and other illnesses.
15. These are similar to light waves, which are ripples of the electromagnetic field, but they are much harder to detect.
16. This might be attributed to cyclotron resonance induced in human body cells by weak electromagnetic fields.
17. The 3D microwave filter was simulated and optimized by the electromagnetic field analysis software and gained a finer result.
18. To study the electromagnetic force on the stator coil end effects,[] we need to analyse it by coupling electromagnetic field and stress field in the running environment.
19. Microwave is of non- ionizing energy from matter heated in electromagnetic field by high frequency. The change in granular properties of starches through microwave radiation is studied.
20. A capacitive proximity switch works with a high frequency oscillating circuit that creates an electromagnetic field on the active sensor surface by means of a capacitor.
21. The cyclotron radiation emitted from electrons in cyclotron motion under influences of the electromagnetic field is investigated.
22. Ignition coil primary winding. Current flow through the coil produces an electromagnetic field, which is used to induce a high voltage in the secondary coil.
23. In order to analyze electromagnetic processes of transformers under constraints of port voltages, the coupled field circuit problem of 3D electromagnetic field is studied in the paper.
24. The devices are called electronic article surveillance , or EAS, systems and use an electromagnetic field.
25. Objective To study the effects of extremely low frequency electromagnetic field(ELF EMF) and its combination with lead on the antioxidant system in mouse brain and liver tissues.
26. In the paper, the AMG/CG method was used for the solution of motors electromagnetic field. At the same time, the edge element was used to make the continuity of normal component.
27. The analytical expressions are derived for the integrals containing exponential and exponential integral which appear frequently in electromagnetic field problems.
28. In this paper the transmission of paraxial light beams was analyzed based on the gradient vector potential of electromagnetic field.
29. The biological effect of extremely low frequency ( ELF ) electromagnetic field on human body is a question in dispute.
30. The two dimentional problems of the diffraction of the electromagnetic wave by a perfect arbitrary form conductor inbedded in the electromagnetic field are discussed in detail.
31. Plasma transferred arc produces the induced electromagnetic field that makes liquid metal convect in molten pool in the surface metallurgical course.
32. Results show that the peak value of the external electromagnetic field induced current in cables of several meters long near the ground can reach kiloampere .
33. They then sent a current through it so that the coil was magnetised in a way which mimicked Earth's electromagnetic field.
34. The curve of the relation between the amplitude of the ultrasonic wave and the excitation current of the electromagnetic field was obtained by experiments.
35. Results show that the shape of inner conductor not only makes the distribution of electromagnetic field change but also makes the zone position of the maximal electric field change.
36. It is pointed out that power frequency electromagnetic field is inductive field, but not radiation field.
37. His main research field is electronics, electromagnetic field theory and microwave technology.
38. The current situation, present questions, future research direction of effects and application of extremely low frequency electromagnetic field on human health are introduced in this paper.
39. The analysis by electromagnetic field theory for it and the structure design in practice were introduced.
40. This paper compute and analyze two dimension electromagnetic field of discal magnetoelectric machine using ANSYS finite element analysis software.
41. In this paper, the expressions of the electromagnetic field components in a plasma waveguide immersed in a strong longitudinal magnetic field are derived in detail from the Maxwell's equations.
42. Line of magnetic induction densest near the coil from the distributing result of the electromagnetic field.
43. For oblique incidence of electromagnetic wave to multilayer RAM, formulas of reflecting coefficient are derived from the theory of electromagnetic field.
44. Based on the theory of electromagnetic field, the electrically distributed parameters of pipelines in frequency domain are emphatically analyzed, and its relative model is established in this paper.
45. Artificial aging methods included small quantity oxygen aging and oxidation process, ozone addition method, electromagnetic field aging method, and microwave aging method.
46. Starting from the Lagrange function of the electromagnetic field, we applied Fonrier transform[Sentence dictionary], obtained the unity theory for the variation fundamental in the harmonic electromagnetic field.
47. The distribution of electromagnetic field is the main part in the research of magnetic bearing.
48. It forms a spacelike boundary condition for an electromagnetic field.
49. A approximately sine waveform air-gap magnetic field density can be gained based on the analysis of the whole electromagnetic field. The results are helpful to optimization design and control.
50. In this paper, the simple analytical expressions of the electromagnetic field induced by a vertical electric dipole on the perfect conductor coated with a layer of dielectric medium has teen obtained.
51. Master or Doctor degree on physics, electromagnetic field physics, bio - medical engineering or electronical engineering.
52. This paper put forward a new calculation method—express linear iteration for simple iteration of finite element equation of resolving non-linear electromagnetic field.
53. By means of this method the electromagnetic field in the cup-rotor of a asynchronous machine is calculated. The solution is identi...
54. Transformation of electromagnetic field is derived from lorentz force formula andmagnetic field of moving charge.
55. Electromagnetic field in various layers of D metal gratings can be described with vector mode field.
56. The electric and magnetic fields have been amalgamated into electromagnetic field tensor.
57. It illustrates the existence of stray electromagnetic field and its hazards, and brings forward opinions on the meaning of neutral point and neutral conductor in building electricity.
58. Using tetrad field get spinor field equations of unified gravity and electromagnetic field with space-time torsion.
59. Based on the fundamental theory of natural alternating electromagnetic field, we have studied the varying characteristics of apparent resistivity during magnetically quiet day and magnetic storm.
60. The Integral domain and integral pattern in EMT electromagnetic field.
61. This paper gives a quantum mechanical analysis of the interaction between the electromagnetic field and the electron beam of free electron stimulated emission devices or linear electron accelerator.
62. The passive IC's power supply is taken from the energy of the received RF electromagnetic field with the help of a Schottky diode rectifier.
63. It's based on the Principle of Superposition and the multi-port network equations, expressed in terms of equivalent network parameters, derived from Electromagnetic Field theory.
64. The measurement principle of CHFR logging is studied by using electromagnetic field theory and transmission line model, and CHFR logging response equation is established.
65. An electromagnetic field can also induce motion in charged panicles, which is what happens when the electromagnetic field of a distant transmitter moves past the antenna of receiving set.
66. The numerical method for nonlinear deformation problems of current-carrying columnar shell under the coupled action of electromagnetic field and mechanical field are studied.
67. On the basis of experiments, the influence of impressed electromagnetic field on flame propagation speed and overpressure in gas explosion was investigated.
68. The induced electromagnetic field possesses the action of electromagnetic purification, and effectively removes formation of impurity grain, segregation, negative segregation and gas cavity.
69. In this paper we discuss harmonic oscillator in an electromagnetic field in the electric dipole approximation.
70. Extremely low frequency ( ELF)refers to an electromagnetic field having a frequency much lower than the frequencies of signals typically used in communications.
71. The frequency and intensity of electromagnetic field change the frequency and amplitude of the calcium oscillation.
72. Conclusion Extremely low frequency electromagnetic field conspicuously restrained the growth status of tumor cells, and some tumor cells could be induced to apoptosis by EMF.
73. This article discussed the relationship of the inductive current, the lever of electromagnetic field, and the loop circuit impedance by some test date concisely.
74. Through loading pulsed square wave to the model, induced electromagnetic field distributions above the tube surface were analyzed and picked, coil induced voltage was solved.
75. The electromagnetic field and the electromagnetic wave objective law describes with the Maxwell equation set and other mathematical expression.
76. This paper presents a new method of calculation and analysis power transmission line and electromagnetic field by using TLM, which gives a discrete model in time domain and space domain.
77. This paper carries on the three-dimensional static electromagnetic field analysis on the electron beam scanning deflection coil with multi pole shoe structure.
78. The electromagnetic field problem in free space is solved by precise integration method ( PIM ).
79. Fiber Bragg Grating sensors can work in the area of strong electromagnetic field, high temperature, corruptive and explosive bad conditions, therefore have more applications than other sensors.
80. This paper gives the convolution integral theorem of the Green's function in the Cauchy's problem of the scalar field in the classical electromagnetic field.
81. The electromagnetic field analysis in charging capacitor and pulse transformer is carried out by employing an ANSYS software for, which is based on the finite element method (FEM).
82. However, the theory ignores the interaction between the electron and a quantized electromagnetic field.
83. The formulas of reflection coefficient and transmission coefficient of uniaxial anisotropic RAM are derived with the aid of electromagnetic field theory.
84. A class of exact solutions of the Dirac equation are obtained for an electron in the electromagnetic field of a wave guide formed by two pairs of hyperbolic cylinders.
85. It is found that the vibrating electromagnetic field can obviously reduce the depth of shrink hole.
86. Next the electromagnetic field on aperture was found, and then proceeded to sum up five common features of aperture field of parabolic antenna.
87. The analytical expressions of the electromagnetic field generated by the DC electric dipole in the upper space for the two-layer mode were obtained by using the method of mirror image.
88. Microwave is of non - ionizing energy from matter heated in electromagnetic field by high frequency.
89. In this paper, the research concentrates on two contents:Firstly, the inductance parameter of the air-core reactor calculation and the structure design is base on the electromagnetic field analysis.
90. Based on the conservative condition of vector lines of variable field in the continuous medium, the problems of electromagnetic field in the moving system are discussed in this paper.
91. Electromagnetic field in various layers of 2-D metal gratings can be described with vector mode field.
92. Supercurrent behavior of the mesoscopic Josephson junction coupled to the multimode electromagnetic field is investigated.
93. Verification of differences of radial and directional characteristics of electromagnetic field intensity in the near and far field are demonstrated.
94. Based on researching the shaft bearing replacer, this paper built the models of electromagnetic field and vortex density in bearing race snap being induction heating.
95. Measuring relays and protection equipment -- Part 22 - 3: Electrical disturbance tests - Radiated electromagnetic field immunity.
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更新时间:2025/2/1 3:55:04