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61. When harmonic sources exist in power system, parallel resonance occurs due to the interaction between shunt capacitor bank and system inductance.

62. The research for the means has a long history, the classical means include algebraic mean, geometric mean and harmonic mean etc.

63. The general solution for this plate is obtained by solving the corresponding harmonic equation twice with the help of the curvilinear coordinate transformation.Sentencedict.com

64. And also, the specimens from rock core are contacted in line, so it is better to use the harmonic average of specimens′ modulus, not the arithmetic average, as the mean modulus of the rock stratum.

65. Using a bipolar coagulator or Harmonic scalpel as a substitute for endoclips to control adrenal vessels under laparoscopic vision is effective and safe.

66. The same mutual inductance, which is also a 2 nd harmonic component of rotor angle.

67. Finally, make a full analysis to the equipment of harmonic prevention; analyze the step of design of harmonic filter, analyze and conceive the active power filter that will has a bright future.

68. Power Supply System is often placed with shunt compensation capacitors and the upper harmonic waves in the distribution network have much influence on the capacity.

69. There is an infinite number of harmonic - frequency components.

70. In power net the harmonic pollutions and reactive power component generated by power electronic equipments have been the major source.

71. The background harmonic voltage is related with not only the power of harmonic sources and variation of power line voltages but also the power system structure and capability.

72. In order to restrain the distortion of third harmonic, some methods are successfully used in system parameter design.

73. Finally it sets forth a new method for synchronous detection which is used to detect voltage flicker and harmonic analysis.

74. The electron beam current measured by the beam current monitor (BCT3) is almost in direct proportion to the induced voltage of the fundamental harmonic.

75. A magnitude of a third harmonic distortion of the waveform sequence can be used to measure distortion in the output.

76. The harmonic language is like a gloss on Bernstein, or tepid Copland (in his “Tender Land” mode).

77. A micro differential capacitance and a micro harmonic oscillator are studied and designed. The structure of the micro differential capacitance is optimized by use of the ANSYS software.

78. Active PFC techniques have been researched systematically and used widely in the recent twenty years because of high power factor (PF) and low total harmonic distortion (THD).

79. Minor scales generally appear in one of three forms, natural minor (the minor mode), melodic minor, and harmonic minor.

80. The principal, ultraharmonic and subharmonic resonance of an elastic rotation shat with twin sides by a harmonic force is discussed, in this paper.

81. In this paper we discuss the natural boundary element method for harmonic equation in an exterior elliptic domain.

82. We have derived the formulas of harmonic spontaneous emission power density, small signal gain of this undulator FEL and the coupling coefficients between the electrons and the radiation field.

83. Now for many power consumers it is needed to find an easy method, which is fit to analyze comparatively simple power system or harmonic filter engineering.

84. The experimental results indicate that this method can be used to detect the reactive power and harmonic current exactly in three-phase four-wire system.

85. In order to reduce total harmonic distortion factor of the inverter's output voltage, adding LC filter to inverter's output is a simple and practical method adopted extensively currently.

86. The results of experiments shows that F2812 DSP can completely meet system demand with high control precision, good dynamic performance and remarkable harmonic suppression effect.

87. The note is monitored as by ear at the speaker to detect the relative volumes of the fundamental frequency and the highest audible harmonic frequency.

88. The simulation with simple harmonic analysis on the performance of a regenerator was carried out.

89. As an application, it obtains a new necessary and sufficient condition for determining the minimal surface lifted by a univalent harmonic function to be a plane.

90. Experimental and theoretical study of Cerenkov type second harmonic generation (SHG) with green and blue output in proton exchanged lithium niobate planar waveguide is reported.