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单词 Impedance
例句
1. The input impedance also deteriorates at high frequencies.
2. This provides a relatively high input impedance looking into their bases and a low output impedance at the emitters.
3. Finally, is the small-signal, complex, output impedance when the input is open circuit to signals.
4. The term iterative impedance is applied to a load that renders the input impedance of an asymmetric section equal to it.
5. Negative series-inserted feedback always raises the input impedance while negative shunt-inserted feedback reduces it.
6. This resulting increase in impedance between the electrodes may be observed on a pen recorder.
7. Discussion Impedance planimetry is a novel technique offering possibilities to characterise biomechanical properties invivo of the gut wall.
8. At low-enough frequencies to satisfy, the input impedance is virtually which is becoming very large.
9. Its high input impedance means that it does not load a signal source which it copies at its output.
10. The impedance of the battery alone is enough to regulate their input.
11. Ideally, any alternating voltmeter should possess infinite impedance and any a.c. meter negligible impedance.
12. The output impedance is about 0.02 ohm at the 5V end and 0.1 ohm at the 15V end of the range.
13. Schematic illustration of the dynamic mechanical impedance protocol.
14. A high impedance coupling device will limit loading.
15. The superelectrons present an inductive impedance.
16. Inductance and motional impedance increase with the pinch process.
17. The ridge regression method is applied to impedance inversion.
18. The AC impedance technology and chronoamperometry were employed to study the electrochemical Characteristic of the membrane.
19. From this point impedance checks are continuous, the device only allows shock in case of acceptable satisfactory impedance.
20. Impedance, Gain, Radiation pattern, Beam width , Radiation resistance, Antenna efficiency, Directivity and Polarization Measurements.
21. The main factors affecting the characteristic impedance of the data cables for responder are presented.
22. Another possible origin of positive feedback is the finite internal impedance of the bias supply.
23. Here the half-section is said to convert the load to impedance at the input.
24. To effectively present open-circuit signal conditions between terminals requires the external impedance to be high compared with the internal impedance.
25. One tactic is simply to shield the device, by enclosing it in a metal or plastic box of low impedance.
26. Transformer coupling of the source and/or detector to the Wheatstone network is often adopted to match impedance levels or for isolation purposes.
27. The phasors representing the e.m.f. and potential difference across impedance Z then have lengths in the same proportion to and respectively.
28. The m-derived section is arranged to exhibit the same characteristic impedance and critical frequency or frequencies as the prototype.
29. Previously, we have shown similar patterns in other intestinal segments by use of impedance planimetry.
30. Parameters and are in fact dimensionless while and respectively exhibit impedance and admittance dimensions.
31. Traditional manual matching technology is difficult to statify dynamic load impedance immediately and fast, which largely limit the RFID technology applications in many fields.
32. Also, the relationship between the input impedance and load impedance of the waveguide is discussed.
33. The smaller the equivalent impedance of the sensor is, the smaller the transfer impedance is, and then the larger the current of a rail at the sensor and the induced voltage are.
34. AC impedance spectroscopy technique was applied to study the conductivity and its temperature dependance.
34. Wish you can benefit from our online sentence dictionary and make progress day by day!
35. Many bloggers seem just impedance mismatched with the preternaturally positive PR professionals, and woe to the flack who's busted trying to game Digg without revealing that they're paid to do so.
36. X1 probe : no attenuation, input impedance follow that of scope input impedance (usually 1 Mohm). This type of probe is seldom used because of heavy loading effect on circuit under test.
37. Based on the characteristic analysis of short-circuit impedance for adjustable tap transformers, the defects of the transformer model is pointed out, and the detailed correction method is proposed.
38. Electric currents: electric current, Ohm's law, conductivity, Kirchhoff's laws, time varying currents, free and forced oscillations, condensers, inductance, complex impedance, resonant circuits.
39. By means of a protective relay test set, using constant source impedance model, the dynamic characteristic of a LZ-16 relay for both a forward and reverse fault is tested with success.
40. The load obtains the maximum power transmission when loaded impedance and power source internal resistance for conjugate match in sine stable state electric circuit.
41. In acoustics, the product of velocity times density, also called acoustic impedance and symbolized by Z.
42. The calculation result on a 5 bus system shows that the new power flow algorithm based on constant load impedance can get more reasonable solution.
43. The charge transfer impedance is a main factor to control discharge process.
44. The frequency response will be good as well, since there is no loss in effective impedance at low frequencies.
45. The dynamic transfer equations of a FBRE system excited by an off-center force are deduced according to the mechanical impedance method in this paper.
46. Given a fixed trace width, three factors heavily influence pc-board-trace impedance decisions.
47. The influence of the phase distribution function on the coupled impedance for a coupled cavity structure is investigated and calculated.
48. Eperimental results show that the impedance of the fuel cell the minimum at medium discharge voltage.
49. Low voltage and low resistance measurements are often made on devices and materials with low source impedance.
50. A numerical method, Boundary Element Method, is introduced to calculate the characteristic impedance of a rectangle coaxial line with round center conductor.
51. The establishment of the impedance function is a key to the traffic distribution.
52. It is shown that lift-off of the eddy current sensor relative to the part under evaluation induces similar straight lines in the normalized impedance plane by computation.
53. The precision of wave impedance inversion can be improved by applying the new genetic algorithm.
54. The paper analyses operation characteristics of multiphase compensatedinterphase impedance relay of type LZ96.
55. The earthwork grill buries is buried may have the virtual impedance function.
56. The investigation of corrosion resistance of epoxy coating containing pigment of zinc chrome yellow was made using electrochemical impedance spectroscopy(EIS) measurement.
57. Finally we use FR4 to fabricate the antenna and use the vector network analyzer to measure the reflect coefficient, antenna impedance and the antennas pattern in the chamber.
58. Objective To determine the normal value of cardiac output measured by reconstructed impedance cardiogram.
59. The primary errors caused by an impedance mismatch are the frequency response and amount of squarewave ringing.
60. The dc input voltage to the converters is assumed to have zero internal impedance.
61. Combination of ladder approach method and equivalent circuit model of slot antenna had been used to analyze its input impedance. Finally, GTD had been used to calculate the radiation pattern.
62. The analysis also shows that using reciprocal turns and its square to describe the sensitivity can be more precise, if the copper resistance and the impedance of the coupling capacitor are considered.
63. The paper describes the principle of wave impedance estimation using self - adaptive filtering.
64. Wave impedance inversion is essential in predicting reservoir properties and sand-body distribution[sentence dictionary], and plays an important role in seismic survey.
65. For the direct power traction systems with full parallel connection, the characteristics of short-circuit impedance is analyzed with method of two symmetrical phases, and the expression is acquired.
66. According to the principle of conservation of energy, lateral impedance of piles in layered soil is presented on the basis of the "Beam_on_Winkler_foundation".
67. Provided is a flexible wiring board, which reduces an impedance mismatch even if three-dimensionally folded, so that it can realize a reduction in a transmission loss.
68. An ideal operational amplifier has infinite input impedance, infinite gain for the differential input signal, zero gain for the common-mode input signal, zero output impedance, and infinite bandwidth.
69. Switching applications of high impedance circuits include low current, high resistance, and high impedance voltage applications.
70. This paper designed a new type of muffler for pneumatic drill with the theory of impedance.
71. An adaptive impedance relay based on negative sequence voltage polarization is proposed, and its operating characteristic is analyzed.
72. When using frequency sweep meter to measure the input impedance of antenna, the balanced- unbalanced transformer must be connected between coaxial transmission line and antenna.
73. A mixing frequency excitation current source is designed according to the analysis of requirements of the bioelectric impedance measuring system.
74. A novel power conditioning circuit for flux compression generators (FCG) to drive high impedance loads is presented.
75. In this article, the measuring elements of distance relay are divided into two main sorts, which are impedance relay and distance relay.
76. The voltage compensation strategy, which takes the internal impedance of the...
77. The conception of isolated impedance is derived from the DC/DC converters. Then, the connotation of isolated impedance and the impedance triangle analysis method are introduced.
78. Among the balanced transformer at home and abroad, the Scott balanced transformers and balanced impedance transformer have been widely used in our country.
79. The expression of mutual impedance between two probes in a circular waveguide is derived by means of a vector potential function, reaction concept and reciprocity theorem.
80. The impedance transition of the films was studied under different applied voltages.
81. RESULTS: The results showed that the measuring electrode, skin-electrode, contacting impedance, and stimulating frequency all influenced the measured signal.
82. Dynamic impedance characteristic of hydraulic system is the important basis for improving its control property.
83. The unionize control of position and force can be realized by impedance control, which is one of main compliant force control theory.
84. This article introduces the method of mechanical impedance employed in the non-destructive control of the pile foundation.
85. When the phased array coil designed, such problems have to be taken into account as resonant frequency, impedance match, mutual impedance and et al.
86. The voltage compensation strategy, which takes the internal impedance of the compensating device into account, is also analyzed.
87. The individual fuel cell is controlled based at least in part on the impedance characteristic.
88. In geophysics, reflection refers to the seismic energy or signal that returns from an interface of contrasting acoustic impedance, known as a reflector, according to Snell's law.
89. In this paper this idea is applied to acoustic impedance inversion using post stack seismic data.
90. Finally, the curve of the relation between input and load impedance of the exponential waveguide is given and discussed.
91. The mutual impedance matrix of the circular array is also studied by using network theory and MOM .
92. An impedance discontinuity causing an undesired signal reflection in a transmission cable.
93. In addition, the electrode impedance can reflect the change in impedance during surface modification of information, it is also measured on multilayer membrane resistance.
94. Encephalic tissues impedance is the main parameter of encephalic tissues electrical characteristics.
94. is a online sentence dictionary, on which you can find good sentences for a large number of words.
95. It is found that the input impedance of DDC112 changes periodically during its AD conversion; and the changing impedance will influence the counting process of laser gyro if it is applied directly.
96. The input impedance and radiation patterns of the probe-fed cylindrically conformal microstrip antennas with a dielectric superstrate are analyzed based on a rigorous full-wave approach.
97. When matched with high – impedance rectifier transformer, it is constituted of control cabinet and rectifier transformer.
98. The aim of the paper is to receive nodal impedance matrix by adding- branch line algorithm and admittance matrix algorithm, to analyze the effect of them, and to provide the models.
99. They have a simple construction with low power dissipation and low output impedance and can be used as interfacing circuits in VLSI designs to reduce the number of external connections on a chip.
100. The voltage compensation strategy, which takes the internal impedance of ...
101. The lightning current distribution is analyzed under different waveform of the injected current, different line impedance, and earthing impedance etc.
102. Negative coefficients occur where there is a decrease in acoustic impedance across the reflecting interface.
103. The impedance spectrum of the electroplating tin anode for Li-ion batteries is measured at various states of charge(alloying)and after charge-discharge cycles.
104. It is showed that the cell membrane permeability, and the rate of potassium ion leakage increase, while the electrical impedance decreases with the development of freezing injury in chicory root.
105. The effect of dielectric constant, dielectric loss factor, coefficient of thermal expansion (CTE)and characteristic impedance of substrate materials on properties of MMB are mainly discussed.
106. Objective To explore cardiac function change in the cardia insufficiency patients " by Reconstructed Impedance Cardiogram. "
107. The effect on the generator excitation magnetic field is different when the capacity and power factor of load are different, and the effect on the internal impedance voltage drop is different, too.
108. Impedance between the phase terminals in the two-port network equivalent to a given network component.
109. The design method of the high voltage and the fast response time pulse transformer used in the condition of low load impedance was introduced.
110. In addition, selection of dynamite type should satisfy impedance matching principle.
111. Moreover it has many advantages. Such as it can throw the concept of impedance relay. It also can be said that it can realize any acting character that can't be showed with math expression.
112. The hexagon fractional slot structure is chosen, the gradually changed CPW feed is adopted. Not only the bandwidth of matched impedance is expanded, but also the antenna's miniaturization is realized.
113. The GSI effect is the phenomenon that some amorphous, which is excited by high-frequency signal, it's impedance changes a lot when it's stressed.
114. The electrochemical performance of electrolyte membrane was studied by AC impedance, linear sweep voltammetry and constant voltage chronoamperometry.
115. Results were also run for different high (relative to the line impedance) impedance values, including 900 ohms.
116. When there is a certain restriction to the total length of impedance transformer, the characteristic impedance of conventional commensurate broadband matching networks would exceed feasible range.
117. This paper describes a new approach to characteristic impedance of various configuration of unscreened slab lines.
118. The electrodeposited behaviours in the initial stage and deposited process were investigated by cyclic voltammetry(CV), chronoamperometry(CA), electrochemical impedance spectroscopy(EIS).
119. The calculating method of section of the well and the effective impedance hole in the surge tank has been gived.
120. On this basis, the couple device's design principle is to decrease the mismatch loss of the network impedance and couple device impedance.
121. In the far field, the wave impedance approaches a constant 377 ohm for any current distribution.
122. It shows that impedance relay is a kind of relay based on the concept of measuring impedance and distance relay is a relay which is typical of compensating voltage.
123. The two-arm hemispherical helical antenna has very wide impedance and pattern bandwidth, and its gain in the whole band is larger and wave mildly, which show that it is of great applicat...
124. The article designed a circuit of body capacitance impedance measurement according to circuit of phase measurement and circuit of impedance measurement.
125. The AC complex impedance method is widely used to charactrize electronic materials.
126. Atrial systolic time intervals(ASTI )measured by cardiac impedance plethysmogram,[] phonocardiogram and electrocardiogram were studied in control and hypertensive subjects.
127. Furthermore, the formulae of transmitted power, loss power, attenuation constant and equivalent impedance for TM and TE modes are deduced.
128. Input impedance of a network when the output is short - circuited, shorted or grounded.
129. Here we designed a miniature coaxial - cavity using stepped impedance resonator ( SIR ) as resonator element.
130. A microwave three probe system has been used to study the changes of annular waveguide plasma source impedance with operational parameters.
131. The matching impedance and wastage relate to the TWT can or can not work up to snuff. They are the problems which need be solved when we design the input and output apparatus.
132. Based on transmission line theory and extraction method of active impedance of waveguide slot, a simplified computation method for the leaky-wall ridge waveguide filter is presented in this paper.
133. Estimation of potential shelf life of packaged pasteurized milk utilizing impedance method was studied.
134. From the batwing antenna feed system, the paper analyzes that he batwing antenna feed can solve the impedance shift, and the principles of transformation of balance and imbalance.
135. Secondly, the load impedance is calculated through the static I-V curve and then matched conjugately to the output circuits by using the optimization function in the software.
136. Noise: reflective caused by Impedance mismatch . the solution may : Reduce the number of impedance connectors.
137. Directional impedance relays (mho relays) are frequently used in high-voltage power systems.
138. The two-arm hemispherical helical antenna has very wide impedance and pattern bandwidth, and its gain in the whole band is larger and wave mildly, which show that...
139. Impedance characteristic is an important parameter of electronic components using in electronic circuitry.
140. Crosstalk is expressed in decibels at a specified load impedance and at a specific frequency.
141. According to the standing-wave ratio theory we worked out the expressions of the sensor probe impedance , and of voltage on the sensor, and we designed the structure of the probes.
142. The electric characteristic parameters of package for high speed ASIC include propagation delay, characteristic impedance, cross talk, parasitic inductance and capacitance.
143. A full-scale analysis of input impedance of the operational amplifier under the state of differential input is given here.
144. METHODS: An impedance measurement system was designed and implemented by timer, analog switch, sample and hold amplifier and A/D board.
145. The results show that the synthetic solution scheme is valid and efficient for noise separating and source impedance extraction. Technical and economic optimization are achieved in this scheme.
146. Proper impedance load can reduce RCS effectively, meanwhile antenna's gain and radiation efficiency are not affected.
147. These figures show that the improvement of input impedance is within a factor of ten.
148. An virtual electronic automatic matching system was designed, used for RFID antenna impedance.
149. Seismic impedance inversion throve from the 70s of 20 century, and change conventional seismic data into lithology data, which provide important information for oil-gas prospecting.
150. Objective To explore cardiac insufficiency patients cardiac function change by reconstructed impedance cardiogram.
151. It is showed that this calculation has features and methods of the impedance calculation of both phase displacement transformer and axial double split winding trans...
152. With many advances in measurement technique of mechanical impedance, the mechanical impedance has been extensively used in vibration study.
153. This paper studies the impedance characteristics seen by loss-of-excitation protection during out-of-step after losing field of a generator as well as the impedance locus when slip frequency varies .
154. However,[http:///impedance.html] many headphones have been sonically optimized to be driven by an output impedance of 120 Ohm.
155. In the compensation period of pressure increasing, brain impedance rises continuously while cerebrospinal fluid volume changes.
156. An active receiving antenna consisting of conical helix antenna and a negative impedance changing circuit is analyzed in this paper.
157. The device parameter as well as resonance frequency, mechanical quality factor and work band width were determined by the equivalent circuit input impedance admittance circle diagram.
158. Theory analysis proves that the output impedance of parallel system is reduced and the precision of output voltage is improved.
159. We insert a parasitic capacitance patch on the rear of the layer in order to adjust the impedance of antenna.
160. Objective To investigate the wave shape and wave amplitude of reconstructed impedance volume cardiogram.
161. The devices are ideal for portable, low power applications, especially with high source impedance.
162. Methods The mice model with VMC was established. CO was measured by impedance differential plethysmography, myocardial interstitial collagen was observed by staining with H.
163. They are used to enhance the gain of amplifier and realize the impedance matching, improve the current copying precision, decrease the tolerance of voltage gain.
164. The intensity of stress wave can be greatly decreased because of lower wave impedance and plastic deformation.
165. But sometime there are duplicate storage problems because of the impedance mismatch between object model and relational model.
166. Decreasing the permittivity of cable insulation or separating the cable conductor can increase the cable surge impedance and wave velocity, so as to improve the voltage waveform on stator terminal.
167. This paper analyses the rule of variations measuring impedance of distance relay when phase to phase fault occurs between two lines on double circuit line on the same pole (DLSP).
168. The major innovations of this antenna are: coupling With 3 concentric rings to achieve the impedance matching, enhance the near-field field intensity and make the standing-wave ratio lower than 1.
169. This paper established the overall design scheme for the system after analyzing the impedance characteristics of piezoelectric transducer.
170. It is introduced short circuit impedance method, low voltage impulse method and frequency response ...
171. It also should be noticed that whether there is restraint or not on top of the pile will have great influence on the impedance function.
172. Protective impedance and radio interference filters are disconnected before carrying out the tests.
173. The relationship of the fundamental-frequency impedance and the firing angle is the key factor in firing control of TCSC.
174. Open-circuit potential method, DC polarization method and AC impedance were applied to measure rebar corrosion.
175. The EMTDC simulations indicate that the method can find out the faulty line correctly and prove that the analysis of the angle-frequency characteristic of zero impedance of the line is correct.
176. An active antenna consisting of electrically small antennas and a negative impedance changing circuit is analyzed in this paper.
177. By using the arrays normalized general impedance matrix to express the mutual coupling between the elements, the characteristics of the covariance matrix of the adaptive arrays are analyzed.
178. Using this method, the EMC simulation model of seams can be created exactly. Second, introduces the basic theory of the transfer impedance method.
179. A network synthesis method of microwave solid state power amplifier impedance matching circuit is introduced in this paper.
180. Objective To Validte the Yeliabil of left ventricle ejection fraction ( LEF ) measured by reconstructed impedance cardiography ( RICG ).
181. There is a lot more to good amplifier performance than output impedance.
182. Acoustic impedance section is a basic section used for reservior construction description and lateral prediction.
183. The leakage impedance of a high leakage impedance transformer is analyzed. Its formula is derived. The test examination of this formula is made.
184. The postextrasystolic potentiation of the left ventricle was observed in 10 anesthetized dogs simultaneously with using differential impedance cardiogram and the catheterization of the left ventricle.
184. try its best to gather and build good sentences.
185. A high - precision internal impedance measurement method of storage battery based on DFT was presented.
186. The methods are able to compute any parameter of grounding grids in power current, such as power ground impedance, touch and step voltage, potential differences within grounding grids and so on.
187. Interconnection channel equipments' impedance mismatch is the key influence factor of system range performance in spread spectrum ranging system.
188. The device is features very high input impedance, super high CMRR, low noise and gain bandwidth.
189. Especially It'solves the identification problem of high impedance fault well.
190. The above data could be used to analyze the impedance and temperature mismatching levels between the non-transparent sample material being studied and the window material as a partly data base.
191. An automatic test system is constructed and test level of transfer impedance test device is improved.
192. Studies the hypervelocity launch feature of graded - impedance flier - plates .
193. Because it has many functions such as Impedance matching and amplitude detecting, the system has high electroacoustic transformation efficiency, low heat and rapid cutting ability.
194. Detection circuit use impedance - voltage transformation method to detect changes in eddy current probe impedance.
195. The impedance characteristics of the wide-band E-shaped microstrip antenna is analyzed by using the FDTD method. The antenna bandwidth of impedance can exceed 30%.
196. The path isolation for a matrix card is the impedance from the HI and LO terminals of one path to the HI and LO terminals of any other path.
197. The instrument can be divided into two types of testing methods by frequency response and short-circuit impedance.
198. The total impedance map can therefore be referred to as an 'evolutive impedance', just as a TFD spectrum is referred to as an evolutive spectrum.
199. According to the P matrix model of surface acoustic wave (SAW) devices, the magnitude and phase of the reflectivity of an interdigital transducer is a function of impedance at its electrical port.
200. In this paper, the early hydration processes of cement pastes including various contents of coal stone were studied by alternating current impedance spectroscopy.
201. All paths through a system must be terminated with their characteristic impedance.
202. For sandstone reservoir, the acoustic impedance of gas-bearing sandstone is lower than that of oil- and water-bearing sandstone, gas in reservoir may be directly recognized by using this difference.
203. As a parameter directly reflecting the petrophysical property of reservoir, the acoustic impedance can be used for predicting reservoir space distribution and storage conditions.
204. This paper presents a design scheme of a single-phase circuit impedance measuring apparatus based on DSP.
205. A device which has an extremely high input impedance, low switching speed and low power consumption.
206. The relation of the impedance of fundamental frequency and the firing angle is the key factor in firing control of TCSC.
207. The motor's character of impedance and phase contrast has been surveyed by using impedance characteristic analysis instrument.
208. The common measurement of the two-port network'input impedance is to measure the S parameter, then Z parameter is calculated by the relation of S and Z, finally the input impedance is gained by the Z.
209. The super capacitors characteristics, such as voltage, capacity, current and state-of-charge, were simulated using the impedance function.
210. Even slight mismatching will cause large errors in the transfer function and degrade the output impedance causing the circuit to become less of a true current source.
211. If you change the reflected load impedance, you will find yet another optimum spot.
212. Electrical impedance tomography ( EIT ) is a new imaging technology.
213. A new principle of switched-capacitor RLC simulation, based on backward difference transformation, is presented. SC negative impedance converters and inductance simulation circuits are designed.
214. Charge measurements made with an electrometer are subject to a number of error sources, including input offset current, voltage burden, generated currents, and low source impedance.
214. try its best to collect and create good sentences.
215. Impedance, charge and discharge performance. The crystal structure of calcium zincate composed by ourselves was verified by X-ray diffraction.
216. The 555IC works in multivibrator condition, sending out the buzzing sound, with digital tube demonstrating L, H glittering, to show the input signal is on high impedance condition.
217. This is partly why the issue of "impedance mismatch" appears so important to a lot of OO people.
218. Switching applications of high impedance circuits include low current, high resis - lance, and high impedance voltage applications.
219. Such a battery eliminator, or power supply, should deliver "clean" power, i. e. with little "noise" and of low impedance.
220. This paper outlined the basic principle and waves of impedance cardiography and the uses in clinic and anaestnesiology.
221. The axial cavum measurement device was used to simulate the input impedance of the body antenna based on the theory of long line.
222. According to the impedance characteristics of the generator and the characteristics of the change of excitation voltage, a relatively self- contained and integrated scheme is proposed.
223. Impedance will reflect back as the square of the turns ratio.
224. In a way, you can consider Groovy as an implementation detail of your Java project, without having to bear problematic impedance mismatch issues.
225. At higher impedance levels, circuit settling times become more important and are usually the overriding factor in determining overall measurement speed.
226. A theoretical method of the PSD of random excitation force in Wheec-rail system is advanced on the principle of mechanical impedance.
227. The acoustic parameters include complex reflection and transmission coefficient (echo reduction and insertion loss), attenuation coefficient, complex acoustic impedance and sound speed.
228. Using this method does not need testing functions, and the impedance matrix is a diagonal matrix, so the filling time and finding the in verse matrix time of impedance matrix are saved.
229. The product of the velocity and density of a rock is termed in the acoustic impedance.
230. Constrained sparse spike inversion is conducted to predict the general distribution of reservoirs before GI, and the results including wavelet and 3D acoustic impedance(AI) can be used later.
231. Finally, by using the measured input impedance data of some antennas given in this paper, the design of those broadband matching network are accomplished.
232. In the meanwhile it is pointed out that the quantity change of the parallel line and zero-sequence impedance must be retested.
233. And their main technical parameters, which are impedance, response time, the level of the residual voltage, maximum peak pulse current and life times, are compared.
234. Finally, generalized impedance - admittance mapptor is studied by the mapping theory.
235. Acceleration is converted to velocity and the dynamic mechanical impedance was then calculated.
236. The results for element input impedance , radiation efficiency of space wave, directivity and radiation pattern are presented.
237. In order to drive a high impedance load such as HPM sources, it is necessary to commutate FCG's long pulse width, high-current and low voltage pulse to a short pulse with high voltage.
238. Real-time monitoring the interaction of L-tetrahydropalmatine (L-THP) and human serum albumin (HSA) was performed with a quartz crystal microbalance impedance technique.
239. In this paper, we present the analysis of multifurcated waveguides by the transmission line model and impedance transformation technique.
240. Optimal design for input filter parameters in the system is accomplished to obtain the minimization of peak output impedance, and the design process is discussed in detail.
241. In this paper, room sound field theory as the basis of measurement based on reverberation chamber and waveguide theory as the basis of measurement based on impedance tube are introduced.
242. The cardiovascular effects of nitrendipine (NT) were investigated in anesthetized dogs. The hemodynamics of NT was determined by an impedance cardiograph.
243. Objective To determine the manifestation of impulse oscillometry (IOS) in variation of respiration impedance on patients with extratracheal tumour.
244. well there is this initial impedance from explosion,[http:///impedance.html] sure the cannon ball can keep going horizontally but as soon that impedance goes it store its natural motion which is downward.
245. An incidence matrix, independent circuit matrix and complex impedance matrix containing mutual inductance are derived.
246. A new Capacitive - Gap - Coupled ( CGC ) band - pass filter based on SIR ( Stepped Impedance Resonators ) is presented.
247. In this paper, the impedance matching problem in high speed driving laser diodes is dealt with and tapered transmission lines are introduced as an impedance transformer to solve this problem.
248. The guard amplifier is a unity - gain amplifier with very high input impedance.
249. By using a simple operational transconductance amplifier (OTA) as a negative impedance used in VCO, the problem of confining VCO's oscillation to a desired range is solved.
250. Tower surge impedance is an important parameter for lightning protection design, but its value is not well determined.
251. The general test platform for actuator in flight control system is essential for the design and test of actuator's static and dynamic performance, impedance characteristic and its failure simulation.
252. At this moment, the excitation voltage transformer impedance and the system-to-ground capacitance come into being non-linear resonant circuit.
253. Resolving and fitting computation has been made on multicomponent impedance and admittance spectra of fast ion solid-electrode systems by least square method for tho two dimensional CHEBYSHEV set.
254. SEM and AC impedance spectroscopy analysis indicated that this is mainly due to the improvement of electrical conduction of grain boundary.
255. Each encounters a reflective surface, the echo on the oscilloscope screen displayed the impedance difference between the two interfaces also determine the level of echo amplitude.
256. This paper derived the measurement method of phase harmonic impedance.
257. The variations of terminal voltage and stator frequency with the load impedance and the load current are given out.
258. Generator neutral ground methods include non-ground, low impedance ground, high impedance ground and arc-suppression coil ground.
259. METHODS: The data of 191 normal volunteers were calculated to get the real part, imaginary part, amplitude and phase of electrical impedance, respectively.
260. The principal technique of reservoir thickness prediction is wave impedance characteristic analysis.
261. This area is often overlooked by engineers who assume zero impedance ground.
262. Still further, a controller may be coupled to receive a control signalcorresponding to a variable impedance level, and control a local oscillator coupled to the mixer responsive to the control signal.
263. It is not in need of buffer stage for cascading because of high input impedance.
264. Scanning electron microscope (SEM) and electrochemical impedance spectroscopy EIS results point out that the Mg-Li alloy performed better electrochemistry properties than pure Mg after lithiation.
265. ADO . NET Entity Framework addresses this impedance mismatch between object - oriented programming and data storage.
266. 'Zero Impedance Branch' model based on the character of PDN structure is introduced, then the ER model of PDMS AM/FM/GIS has been built, and the designing procedure is briefly described.
267. This article design a virtual system that can provide automatic matching for RFID antenna impedance.
268. It is showed that this calculation has features and methods of the impedance calculation of both phase displacement transformer and axial double split winding transformer.
269. What is the impedance of half wavelength single pole antenna?
270. The QSS (Quasi Steady State) model of converter which neglects the negative impedance of DC system will bring some errors when unbalanced fault occurs in AC system.
271. High impedance voltage switching may be necessary in applications such as monitoring electrochemical cells and measuring semiconductor resistivity.
272. The actual signal distortion levels depend upon input and output signal amplitude, as well as the output load impedance.
273. The measurement results show that this method is simple and easy for antenna impedance measurements without expensive special measuring instruments.
274. The decreased effective output impedance causes the amp to react less to the speakers.
275. The active and passive sensitivities are low. Because the output impedance of the CFA is very low, the output terminals of the proposed configuration can be directly connected to the next stage.
276. To get real-time road impedance, a new idea which is to fit the actual traffic data based on GM (1,1) model and get the real-time impedance function is proposed.
277. The operation ways of auto-transformer for AT power supply are expounded. Its performance and characteristics are analyzed. It is introduced that how to get to the lower impedance.
278. The performances of impedance and transmitting voltage response of the transducer are analyzed.
279. It also helps to keep the crossover point from shifting due to impedance variations.
280. The stress impedance effects of the as - deposited films at different annealing temperature were also investigated.
280. try its best to gather and make good sentences.
281. Thus the inhibition behavior of composite imidazoline inhibitor LAN was studied by means of weight-loss, potentiodynamic polarization curve, and electrochemical impedance spectroscopy (EIS).
282. The insertion tip may be arranged to match the impedance of the coaxial antenna to a predetermined tissue impedance.
283. For all of these reasons, relational databases offer what we might call a noticeable impedance mismatch when we try to use them to persist objects in a dynamic language like Python.
284. A direct solution for coupling dynamic equation with frequency-dependent impedance under arbitrary loads is presented in the time domain.
285. Finally, the effect of the impedance, standing for a storage circuit, and the concentrated mass at the free end of the bimorph on the harvester performance is discussed in detail.
286. When a high-voltage inverter supply works its load impedance will change with the application environment, thereby affecting the stable work of the power supply.
287. The models of SC Conductance and impedance with finite gain op amp are established. From these models, an analysis of finite gain effect on biquadratic SCF is made.
288. The extract of seismic wavelet is the base of wave impedance inversion and forward modeling.
289. In this paper, the mechanical impedance of rolling bearings were measured and the dynamic model was presented when the rolling bearings were hanged with flexible wire.
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