单词 | Sine |
例句 | 1. Patience is a sine qua non for a good teacher. 2. Trust is a sine qua non for any counselling. 3. The case was adjourned sine die. 4. The control of inflation is a sine qua non for economic stability. 5. Successful agricultural reform is also a sine qua non of Mexico's modernisation. 6. TV coverage is the sine qua non of a sport if it is to thrive. 7. Trigonometry concerns the functions of angles, such as sine, cosine and tangent. 8. An interest in children is a sine qua non of teaching. 9. This function returns the sine of an angle. 10. If the sine wave is distorted, harmonics are generated. 11. Immediately after inputting a sine wave to your network, you should observe the embryo of a sine wave. 12. There is evidence that the Babylonians were using sine tables, recorded in cuneiform symbols on clay tablets, long before Hipparchus. 13. The sine function, hyperbolic tangent, and other non-linear variations on these basic ideas have also been used. 14. Prevention of depression and inflation remains a sine qua non for economic security. 15. Strength of character is the sine qua non of leadership. 16. The hearing is adjourned sine die. 17. The meeting will adjourn sine die. 18. The voltage requires being smooth and stable sine wave. 19. The shape of pulse load approaches half sine wave.Sentencedict 20. Pure sine wave output. Current harmonic content is small. 21. This requires two sine - cosine resolvers. 22. Chart for use sine bar survey conical gauge's situation. 23. The meeting adjourned sine die. 24. Pure tone is a sine wave. 25. XSLT doesn't have a sine function. 26. The other function is to wave, sine wave and triangular wave statistical analysis. 27. I also do not give much weight to enthusiastic endorsements-empirical support is a sine qua non. 28. As the network training process dynamics continue, you should see the output take the shape of a perfect sine wave. 29. Some land reforms have embraced soil conservation as a sine qua non of long term productivity gains by land reform beneficiaries. 30. The tank contains compressor using freon F-12 as refrigerant, and temperature regulator for automatic controlling. It is necessary equipment for aerated water and sparkling sine production industry. 31. The color texture modeling which uses sine function was built. 32. At the same time, the damped sine time domain waves with different attenuation speed are fed into the double ridged horn antenna, and different radiated fields are analyzed. 33. Based on the mechanism of secondary flow formation and development in a turbine cascade, SINE function and polynomial function were applied to develop a non-axisymmetric endwall profiling method. 34. And the reason is that a sine curve is like so. 35. YCB arc gear pumps are mainly gear, KCG axis, the pump body, cover, the axial bearing, sealing etc. Using double circular-arc gear tooth sine curve. 36. A new conclusion is put forward, in which the smooth degree of the data row can be enhanced by means of the arc-hyperbolic sine function transformation. 37. All this, he writes, " began with water, the sine qua non of any civilization. " 38. While a sine - wave modulation signal is shown, any wave shape could be used. 39. Sine curve and non - sine curve could be set at random and vibration frequency and amplitude could be adjusted on l... 40. In this paper, sine wave frequency sweep signal generator for multifunction ultrasonic instrument is presented. 41. The inverse function of that restricted sine function is called the arcsine function. 42. The load obtains the maximum power transmission when loaded impedance and power source internal resistance for conjugate match in sine stable state electric circuit. 43. A laser ranging system which is based on the principle of the phase difference measurement of sine wave is developed in this dissertation. 44. By the error analysis, this text gave us a conclusion: we can get a fine accuracy by the sine bar when measuring a small angle. 45. A new Sine Wave Stage Dimmer Based on AC chopping control is proposed, and the hardware and software of it is introduced in this paper. 46. The generator generates three - phase sine wave current with harmonics. 47. Arc sine x is an angle whose sine is x. 48. In 0.4Qi flow condition, the radial force component on single volute pump change with time t cycle were similar to sine curve and cosine curve, the tracks of the vibration system is a ellipse. 49. There are sine cosine complete source code of the image can be used directly. 50. The simulation and experiment results show that the stator flux track is a circle, the stator current is a sine curve with few harmonics,(http:///sine.html) the torque has small ripple and fast dynamic response. Al... 51. So the fast algorithms of discrete sine transform, the discrete cosine transform and the discrete W transform are unified. 52. Inoculation processing enhances the concentration fluctuation. The sine theory of the fluctuation is improved according to the measured waveform. 53. The system mainly consisted of the PN code generator, the SS implement, the absolute-to-relative code converter, the digital sine wave signal generator, 2DPSK modulator and D/A converter. 54. In the experiments, a small-amplitude sine wave of displacement is modulated to shear loading to study the effects of shear stress perturbation on stick-slip instability. 55. The color texture modeling which uses sine function was built. An example of building imitated fruits statuette was given. 56. Some simulation experiments were performed to track the sine curve and the results of experiments showed the content studied in this paper is feasible and universal. 57. This designation is to deal with the output sine wave of a high frequency and high voltage power supply, the aim is to develop a high voltage and high frequency nanosecond pulse generator. 58. As a result, the sine electric circuit power theory presents unsuitability gradually. 59. This equipment is speedy in answer to speed, deferent sine wave distortion is small, intelligentize degree is high, anti-jamming is better, the power complication and the efficiency is supernal . 60. The analysis of modulation wave theory has very important theoretical and actual meaning for studying non sine alternating current. 61. In a solar system, each planet has its own sine wave. 62. This paper presents a self focusing filter which is composed of matched filter with sine form and Fresnel zone plate by means of area coded method. 63. We start with a simple sine curve and customize it to look just as we want it to. 64. This crossover distortion looks like a notch, or flat spot, in the sine wave as it crosses the zero axis. 65. A sine - shaping circuit converts the oscillator triangle wave into a low - distortion sine wave with constant amplitude. 66. To ensure the population diversity and avoid local convergence, sine function and cosine function are adopted to control crossover ratio and mutation ratio. 67. 'We are talking about the sine qua non of our existence, ' she says. 'Sex – snigger as we will – is the overlooked category of health and wellbeing. 68. For instance, let's consider the sine wave , or sinusoid, a mathematical function that describes a smooth repetitive oscillation. 69. Fourier analysis is the mathematical method used to break sounds down into sine waves. 70. Digital design is the main character of this system. The three-phase SPWM pulses are generated through sine wave compared with triangular wave. 71. In order to measure the torque and rotational speed, changes the torque and the rotational speed signal into electric signal of two sine signal through the torque speed probe of Model JCZ. 72. A measurement system for sine signal difference is designed by using DSP and digital correlation method. 73. Based on the orthogonality of sine, a new approach to the detection of harmonic in single-phase circuit is presented. 74. The improved AFT algorithms for even and odd functions can also be used for computing discrete cosine transform (DCT) and discrete sine transform (DST), respectively. 75. The method that CPLD calls on memory by table look-at forms sine wave and cosine wave. 76. Fourier cosine, Fourier sine transformation and definite integral transformation simplify the equations of the boundary problem into a group of singular equations. 77. The diurnal variation of soil temperature performs like sine curve. The peak time lags with the increase of soil's depth, and the amplitude of diurnal variation decreases with depth. 78. Along with the change of charge ratio, microscopic morphologies present sine curve, dots and lines type and all dots type, respectively, the latter two morphologies are discontinuous. 79. Different signals such as sine waveform(http://), step waveform and exponential waveform are available. Its frequency and phase can be adjusted precisely through the front panel. 80. Skills: 1. a solid basic skills specialized courses. conducted active sine wave generator. 81. The length formula of sine function is a stagger progression, its calculation is hard and convergence rate is slow. 82. Symbol of operator is the function of operator acting on sine function. 83. Both the computer simulation and model experiment prove that it can reduce the total harmonic distortion of the harmonic current from 30.53% to 9.45% and make the waveform approach to sine wave. 84. DAC0832 achieve sawtooth, triangle wave, square wave, sine wave, staircase wave, trapezoidal wave source compilation. 85. The triangle, square, and sine waves are input to a multiplexer. 86. The results show that the induction heat power of magnetic field amplitude-modulated with sine wave and square wave is unrelated to the frequency of modulating wave. 87. Then for complicated sine integral and prolix formulae, the study on symmetrical dipole can be easily solved by MATLAB. 88. And some of network which satisfy the phase and amplitude balance do not produce sine osc... 89. Let's now examine the simplest wave from where the profile is a sine or cosine curve. 90. In chapter 4, According to the theory of scalar diffraction, firstly, the equipollence of spatial distribution of the plane-wave interferential field and parallel projective sine grating is discussed. 91. Sugar is a sine qua non ingredient in any kind of cake. 92. The single phase H-bridge inverter can generate common-mode voltage due to the sine pulse width modulation(SPWM)and vector controller. 93. In fact , we use the digital way directly to synthesize sine wave. 94. Design requirements: (1) can output sawtooth, triangle wave, sine wave, pulse wave. (2) according to the keyboard command to switch between waveforms. (3) can adjust the output waveform frequency. 95. Impulse excitation and sine stable sweeping tests of local bending modes of the frame columns were conducted. 96. For optimal model - reduction of large scale systems, up to now, the integral-square - error method has been developed for systems with impulse, power or sine function inputs only. 97. The paper establishes the deterministic simulation model using the theory of sine summation. The model parameters are determined using the Method of Equal Distances and the Method of Equal Areas. 98. The curve fitting method can precisely extract the 4 parameters of sine wave. 99. I've been feeling so lonely , hopeness, heartbroken sine my wife died. 100. Type in plot sin(x) at the prompt: you should see the familiar sine curve in a pop-up window. 101. An attempt to offer a new treatment of end point error in precipitation titration by using hyperbolic sine function is given in this paper. 102. Waveform distortion is a primary factor affecting the measure precision of steady sine standard vibration calibration system. 103. For anyone that needs a little refresher course, the sine function gives the ratio of the opposite side of a given angle in a right triangle to the hypotenuse. 104. A curve of sine approximate error in angle measure is devised, a mathematical model of the measurement error is presented. 105. U.S. capital reserve study is to obtain a visa sine qua non. 106. Industrial frequency test voltage waveform shall be practical sine wave. 107. The sine steady circuit is analysed by means of vector mode. If the vector mode is flexibly used as the auxiliary tool in the analysis, it will provide simple way to solve the problem. 108. A micrometre is fitted to a bridge frame(sine bar) at the middle to obtain data. 109. A new control method of multiunit inverter is described,(http:///sine.html) which determines the triggering pulse for each unit to obtain the sine wave output through multiple-phase shifting superimposition principle. 110. The primary function of the auxiliary signal generator is output sine wave or SWIFT (stored wave form inverse Fourier transform) wave at the scheduled time. 111. As is well known, the EM field of TE11 mode at the wall of the circular waveguide changes as sine (or cosine) function azimuthally. 112. The Taylor series is also inefficient compared to the built-in sine function of a modern desktop chip. 113. This particular half - sine pulse is only a very approximate model for the actual state of affairs. 114. In the art of puBlic speaking, clear diction is a sine qua non. 115. In this paper, a catastrophe model of sine flat arch jumping bend is established. 116. 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. 117. It explains computing method and noticing questions of current, voltage and power, power factor and fault distance, etc, by applying the sine curve algorithm to simulate three sampling value. 118. The method is an implicit iterative scheme with a hyperbolic sine transform for the matric potential. 119. The text not only introduces the components and work principles of multi-phase sine wave signal Generator in detail, but also supplies its system chart, programme flowchart and practical results. 120. By digital adjustment with high precision on the DC bias of reference sine wave, the DC bias contained in inverter output voltage can be adjusted to restrain DC circulating current. 121. From Monday to Friday, the fluctuation of their mood appears to be like the sine wave. 122. By means of higher transcendental functions(exponential integral, sine and cosine integral), the general solutions ofthe problem are obtained. 123. By movingperiod sine wave model , the precise demodulation of AM signal wave is achieved. 124. Experiment on acoustic pyrometry is done using the chirp signal, white noise and sine wave respectively in a 300MW boiler in one domestic power plant, through fire hole on furnace wall. 125. A false friend and a shadow attend only while the sine shines. 126. Stator double fed sine phase moving stepless speed regulation asynchronous machine is a new type of speed regulation motor, it integrates motor and speeder system. 127. This paper focuses on the perturbation which takes the sine form. The effect of amplitude, frequency, wave number, and initial phase difference on the propagation of optical soliton is investigated. 128. The system has obtained very good step response, ramp response and sine function response. 129. Each of these pieces is a sine wave with a different frequency. 130. The experiment results prove that the power supply has good sine wave function, and widely apply range. it efficiently improves testing precision of core loss. 131. According to the principles of numeration table, the author puts forward simple but practical methods of how to measure the mean values, virtual values and peak values of non sine waves. 132. Even if it worked with - phase sine, - phase line current would have non - sine aberrance and produce wave - electricity. 133. Both sine wave and steep pulse edge are special cases of complex frequency wave. 134. In view of universality, function generator with the core of high speed MCU uses the chips of DDS and FPGA. On the basis of generating routine sine wave, it can modulate signal frequency and range. 135. The design models of blank of tapered wall thickness cone and equal wall thickness cone with deviation from sine law are presented. 136. At first, it introduce symmetry regular-sampling and benchmark sine function table. 137. In this paper, a sine modulation method used to estimate the bandwidth in FOG design and assembly phase is presented. 138. Hanning windowed interpolation harmonic analysis algorithm and high-order sine fitting algorithm are the two effective algorithms for dielectric loss angle measurement. 139. It can generate sine - wave current , the maximal electric pressure of no - load condition can reach to 210 V. 140. At the same time, the sine signal which intermixes noise is detected, and the precision and affecting factors of phase difference measurement are analyzed. 141. Meanwhile, under two-group instability modes, it is discovered that the curves between electric power of generator unit and rotator's angle in relative to center of inertia is a sine curve. 142. High frequency current of approximately sine wave-form at frequency of 1kHz to 1000kHz. 143. According to the sine law, vertical wall shell cannot be finished at one time in NC incremental sheet metal forming process, it must be formed at many times. 144. With this method applied the separation of the AM sine pulse from the ideal chaotic signal and from the measured reverberation of the lake bottom are implemented. 145. The waveform square wave, sine wave, triangle wave and the sawtooth wave, etc. 146. Its perspective film graphic falls into sine wave stripe image and C type image, includes file header and parameter list. 147. Simulation and experimental results show that the proposed converter has sine wave input current and output voltage, low harmonic content, adjustable power factor, and zero voltage commutation. 148. Vector, Statistics, Probability, Mapping, Transformation, Sine and Cosine Law, Functions. 149. The intensity and position samples of the final-alignment signal are fitted with a cosine or sine curve, and then the series of peak points are derived from the model parameters. 150. Agreement by the management is a t sine qua non of all employment contract. 151. By means of the symmetry of sine and the relation between the address of the ROM and the data of the output, we can get the whole circle of the sine wave form with only 1/4 circle stored in the ROM. 152. We derive the addition formulas for sine and cosine from the arithmetic of complex numbers. 153. At SCM interface 8255 export whole sine wave for accommodate tempera - ture. 154. Previous sparse band coherent processing methods are mainly for one-dimensional sparse vector and directly use sine signal model for analysis. 155. There are many differences between A & D's Sine wave Vibro Viscometer and the common rotational type viscometer. 156. The virtual signal generator has 12-channels outputs for linear scanning frequency signal or fixed frequency sine wave excitation signal. 157. Using electron switch touch off cross zero , thus deferent electron sine wave is intact. 158. Coefficient formulae derived belong to forms of the sine function. 159. There is certain time limit , impossible prolong the bottom sine die. 160. It's better to select the minimum energy window to calculate RMS of sine wave by using the window DFT on the basis of the amplitude of sine wave DFT main lobe. 161. When graphing AC voltage, the Ac voltage sine wave will not be shown on - screen. 162. Through the analysis of the response of resonator base on different pumping signals, sine burst is used for pumping signal of the system to improve the efficiency and detecting-distance. 163. The cosine rather than the sine is customarily used in this case. 164. Function signal generator of the system can produce sine, square, triangular wave. 165. The advantage of the variable is presented and a sine function con roller is constructed. 166. Data are often transmitted in the context of a carrier signal such as sine wave. 167. The rule of magnetic induction density, induced eddy current and electromagnetic force varied with high frequency sine exciting current was investigated. 168. This paper gives a method of analyzing sine steady - state circuit by phasor graphology. 169. The paper takes advantage of a single close-loop control method based on voltage feedback,(http:///sine.html) and enables the inverter to produce steady sine waves by the digital PID adjuster designed. 170. Some sine waves are harmonic whose frequency does not equal to the frequency of fundamental component. 171. Low Frequency Oscillator waveform, including sine, triangle, square, random, and sawtooth. 172. Objective To improve the clinical application of sine grey level transformation of X - ray medical images. 173. Because we have a cross between r and v, and with a cross product, you have the sine of the angle. 174. This paper gets the frequency stability of a sine wave using a digital method. 175. This is a single-phase measurement that multiplies the amplitude of fundamental current of a line by a sine signal which has the same phase with the current. 176. So, when you go to polar coordinates, basically all you have to remember on the side of integrate is that x becomes r cosine theta. y becomes r sine theta. 177. The com plex wavelet transform algorithm extracts the sine current signal that has thes ame frequency with the injected signal from each branch current. 178. The virtual signal generator can generate sine wave, triangle wave, square wave, sawtooth wave and other standard signal. It also can add some noise to those signal. 179. Of course I could have started off here with a sine curve; I hope you realize that. 180. It is widely used in the fields of engineering and technology for the sine signal which is a characteristic signal. 181. Aim To study some calculation formula of sine function and cosine function. 182. The single AC power input voltage frequency, the internal AC to DC after; DC converter rectifier exchange conversion, self-produced - very stable, pure sine wave. 183. The method of producing sine sweep by computer programing is introduced. 184. Each module was an arithmetical command such as add, subtract, multiply, cosine, sine. 185. The old man died sine prole in his 80 th year. 186. Studer Innotec is a Swiss manufacturer of sine wave inverters and inverter-chargers for stand alone solar systems, ranging from 200 W up to 63 kW. 187. A sine wave alternating voltage signal is generated synchronously in the presence of gear teeth made of carbon steel, magnetic stainless steel, or iron (ferrous metal). |
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