1. Bandwidth and attenuation are the key factors.

2. This was a rare opportunity to study the attenuation of strong seismic waves and thereby improve seismic hazard assessment.

3. Above this frequency, the attenuation ceases to be negligible and the phase shift ceases to be sufficiently proportional to frequency.

4. Between the first moment of analytical attenuation and a regain of analytical power is the engram.

5. It provides attenuation of potential difference represented by when it is negligibly loaded.

6. Difference-of-squares circuit uses feedback attenuation to compensate for lost output Fig. 4.

7. This time[sentence dictionary], the term attenuation band is an apt description of each range of frequency.

8. Yet some form of attenuation is mandatory.

9. Influence from Ground Attenuation, Screening, Reflection, Directivity Index.

10. The attenuation constant causing by radiation is obtained.

11. Attenuation of light is in the form of absorption.

12. The attenuation of chemical oxygen demand (COD) in rivers during the icebound season was examined, and how the freezing action of ice-layer worked on the attenuation of COD was presented.

13. Methods The ultrasonic attenuation coefficient and the ultrasonic speed of series of micro-sized composite materials have been detected, compared and analyzed.

14. Seismic wave attenuation in rock means wave energy loss in rock.

15. The image reconstruction problem of linear attenuation coefficients is very difficult and central in transmission TGS.

16. The Earth's absorption and attenuation effect is one of the most important factor that affects the resolution of seismic survey.

17. These records provided a rare opportunity to study the attenuation of strong seismic waves as a means of assessing seismic hazard.

18. What is more, should a component be varied to alter the phase shift, the attenuation also changes.

19. Many practical situations require the introduction of a variable phase shift, ideally with no attenuation but at least with fixed attenuation.

20. The thin carbon dioxide atmosphere on Mars admits sunlight to the surface with very little attenuation.

21. Thus, under correct termination, no electrical power is fed into these filters over the attenuation bands of frequencies.

22. The smaller, the smaller the ripple in the pass band but the less the attenuation in the stop band.

23. Signal voltage gain is always accompanied by greater signal current attenuation and viceversa with a transformer.

24. They also adversely affect the rate at which the attenuation changes with frequency near critical frequencies.

25. 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.

26. Two color pyrometers were developed to solve the problem of signal attenuation by intervening smoke or fumes .

27. After measuring the velocities of many fragments and the flying angle, the coefficient of velocity attenuation can be calculated.

28. For improving the precision and sensitivity of the instrument, a "ratio method" for measuring attenuation coefficient has been taken.

29. Especially, regularity as one of the constraints assure the flatness in passband and the high attenuation in stopband, even the value of stopband response is very close to zero.

30. The scheme has biggish innovations on power amplification, automatism rearrange, perturb resisting, signal attenuation preventing, real time video frequency signal surveillance etc.

31. A novel portable system for optical fiber attenuation spectrum measurement with accousto-optical tunable filter(AOTF)technique is presented.

32. The influence and influence mechanism of heat aging on the attenuation of PMMA polymer optical fiber (POF) were studied.

33. Results:The tumors showed as a thickness or bulky mass of the local supraglottic structure with irregular margin, homogeneous attenuation and slight enhancement.

34. In benign tumors, smooth edges and lateral echo attenuation were demonstrated, and they were of poor blood flow signals.sentencedict .com

35. 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.

36. On the basis of a model, the relationship between the attenuation coefficient and the propagation distance can he deduced by solving a differential equation.

37. Two sharp attenuation poles can be located close to either side of the desired pass-band to improve the frequency selectivity.

38. Low-frequency pseudo Rayleigh wave (high velocity)can be used to estimate shear wave attenuation, then permeability in original state formation.

39. In modern shortwave communication systems, the channels are mostly frequency-selective, multipath transmission causes the coherent attenuation and symbol interference.

40. The result showed that the attenuation of residual stress of autofrettaged thick-walled cylinder reached about 30% under cycle loading.

41. Attenuation of seismic waves between such surfaces can be similarly diagnostic.

42. L. F. noise can be better attenuated so as to obtain good attenuation characteristics over the entire audible frequency range by using active noise reduction technique in the closed-air type earmuff.

43. If a proper non- linear change of the instantaneous frequency is realized, we can get a frequency spectrum whose input is the mean of the reciprocals of bed attenuation coefficients.

44. Pseudo-Rayleigh wave at low frequency (high velocity)can be used for the computation of shear wave attenuation in virgin zone.

45. In the paper, the dependability of explode energy of blasting fuse through space attenuation ignite the high energy ignition compositions was learned.

46. I manufactured the distribution of the tenth Five-Year Plan Strong motion networks including the fixed stations, intensity array, active faults array, the structure array, attenuation array.

47. The process of attenuation measurement is presented, which utilizes a system consisted of a sweep oscillator, a pair of broad-banded horns, and a scalar network analyzer, etc.

48. The hydrogen absorbing filling compound can be used to reduce the fiber attenuation caused by hydrogen and protect the optical fiber cable.

49. However, no report is available about the effects of tree parameters on noise attenuation of expressway.

50. We propose a continuously adjustable, large attenuation factor laser energy attenuator.

51. The attenuation of water window soft X rays through a silicon nitride film, air and water contained in samples was calculated using the experimental data.

52. It is found that the star_shaped nozzle jet has a shorter initial section and slower velocity attenuation along the jet centerline in the main region than the round nozzle jet.

53. In the optical fiber transmitting system, attenuation of fiber affects transmitting efficiency directly, the lower attenuation is very important because it affects the sensitivity frequently.

54. Methods; To study the relationship between signal attenuation and temperature or time by the theory of diffusion movements on classical physics.

55. Propagation characteristic of UHF radio wave in rectangle , circle and arched tunnels is studied in this paper and the computing equation for attenuation constant is deduced.

56. Without attenuation isolation in source terminal, the negative error due to source terminal impedance mismatch may be corrected.

57. The rocket exhaust plume causes the effects of noise, smoke, flame and heat radiation, environment pollution and signal attenuation, etc. So it is important to study exhaust plume.

58. Along with the thermal instability, unevenness , vendors and the oviductus adhesive thermal energy attenuation.

59. Ultrasonic transmission attenuation characteristic in muscular tissue is discussed in this paper.

60. Due to the effect of the air layer in the composite material, the swing attenuation and phase delay of transition wave and the solutions were discussed.

61. There have been few researches on disturbance attenuation control for power-assisted wheelchairs, although they are getting more requested.

62. The noise attenuation characteristics of air cleaner in a passenger car are analyzed using element method.

63. This model can increase the calculated value of the attenuation constant. The results indicate that the loss of the helix occupies most of the whole loss.

64. Eaton FC NVH utilizes a custom hose assembly that specifically targets the fluid borne noise to reduce overall noise levels without over attenuation.

65. To facilitate realistic testing, the heart of REAL is the radio frequency attenuation network,[] a system designed to simulate realistic field conditions for multiple radios.

66. However, this technique is stifled by difficulties such as the nonlinear and ill-posedness problem due to the attenuation of incident and scattering rays and the multiple scattering problem.

67. Increasing voltage, pulse-forming capacitance and discharge wire diameter can improve the attenuation rate of pulse energy.

68. Considering the attenuation of ultrasound, the actual sound power of several different frequencies and different power ultrasonic in the liquid was determined by using the calorimetric method.

69. According to this paper, the frequency and intensity of the signal attenuation on transmission line are mainly depended on the ferromagnetic resonance frequency and eddy current loss.

70. In low frequency band, the attenuation rate of guided electromagnetic waves are very low and increases slowly as frequency.

71. The bigger the electron proportion, plasma layer thickness and external magnetic field strength, the broader the attenuation band.

72. Characterized by short duration and quick attenuation, One - off impaction ground motion is more typical than others.

73. The correlation property between the distribution of attenuation factor and that of the group velocity is indicated, in this study.

74. In this paper, the environment attenuation factor is introduced to the radar equation and the simulation results of the detection range of stand-off jamming based on weather conditions are given.

75. This paper presents a new adaptive multilevel median filter based on direction information measure to solve the contradiction between noise attenuation and image details-preserving (edge-preserving).

76. Near the critical point of the RLC-circuit, the residual voltage waveform changes form non-oscillating attenuation mode to distinct across zero oscillating mode when the peak current increases.

77. The results show that the system improved the VGA signal attenuation and distortion, achieved high-quality, long-distance transmission.

78. To study the clinical toxicity and attenuation of Leucaena in broilers, 250 10-day-old AA broilers were randomly divided into five groups, which every group had 50 broilers.

79. In scanner controlling aspect, a chromatism compensation technology is put forward, so as to solve the problem of signal attenuation and prolong the life span of scanners.

80. The attenuation coefficient shows approximately linear behaviour with frequency over the frequency range used, and the attenuation slope increases with the void content.

81. Using this device, we can measure many oceanic optical parameters such as diffuse attenuation coefficient, remote-sensing reflectance, water-leaving radiance and so on.

82. The blind equalization algorithm is "equanimous" and the characteristic of convergence is not influenced by distortion of channel, it is fit for equalizing deep attenuation channel.

83. The results show that hydrodynamic dispersion and indigenous biodegradation under mixed electron accepter conditions are primary mechanisms for the attenuation of ethanol and BTEX in porous media.

84. A parameter adaptive law and a control law were obtained to ensure asymptotic attenuation of the tracking error to zero with probability 1. The simulation results show the validity of the method.

85. Among which, is the attenuation coefficient at the single scattering approximation, representing the attenuation rate when the laser passes through medium in unit distance.

86. As a result, there is less attenuation of the gamma rays from the fission products.

87. The transmission zeros(TZ) of Quasi-elliptic function filter could be placed in any position, so the attenuation out of band is controllable, then a high selection performance could get.

88. The combined effects of soft rock sites and anelastic attenuation factor have been separated and determined respectively by(using) this method.

89. Wave attenuation properties of rectangular pontoon breakwater were analyzed with eigen - function expansion.

90. Lateral Attenuation of Aircraft Sound Levels Over an Acoustically Hard Water Surface.

91. Variations of geology and astronomy have constantly parameter variable auto-correlation function of vibration attenuation type.

92. For the electric vector of electromagnetic wave. we discussed its amplitude, wavelength, phase, and attenuation length.

93. The attenuation constant is in proportion to the density of the scattering dots, and also increased with the laser beam energy that records the information dots.

94. Two kinds of program control signal attenuation circuits, which are used in circuit design, are introduced.

94. Wish you can benefit from our online sentence dictionary and make progress every day!

95. The area's seismic prospecting characteristics have tantivy attenuation of seismic waves, strong interference waves, low signal-noise ratio and difficult operational conditions.

96. Flange - type variable optical attenuator: attenuation with high accuracy, small size, convenient, good stability and so on.

97. The blasting damage of rock mass results in the change of energy attenuation and its frequency spectrum, besides influences on the acoustic velocity.

98. For current linear attenuation model it draws a conclusion that arc discharge time is proportional to the product of inductance and initial current and is irrelevant to the source voltage.

99. This shows that an earthquake may be predicted by making use of the variations of the frequency attenuation coefficient if the available data are properly processed.

100. Control design for this disturbance attenuation for two directions is suggested and verified by real experiments using a power-assisted wheelchair.

101. This revision of the control input will greatly compensate the gain attenuation and phase delay, and the error of the machined part will be decreased.

102. The attenuation of neutrons from a nuclear explosion involves several different phenomena.

103. Ultrasonic attenuation capacity of cellular Al alloy foam were studied.

104. These all will produce some other effects that would strongly affect the transmission of laser signals, especially attenuation, coruscation and dithering of beam.

105. This paper also Successfully acquire structure's free attenuation response for the first time by impacting turbo-dynamo foundation.

106. Figure 1: Axial non contrast CT demonstrates symmetric low attenuation in the temporal-parietal white matter. Note involvement of the splenium of the corpus callosum (red arrows).

107. What is the maximum distance that 10BASE-T will transmit data before signal attenuation affects the data delivery?

108. Furthermore, the formulae of transmitted power, loss power, attenuation constant and equivalent impedance for TM and TE modes are deduced.

109. The results show that fatigue failure criterion of concrete under tensile-compressive stress can be indicated by ultimate attenuation rate of secant modulus.

110. It is shown that the attenuation coefficient will decrease obviously with the increase of Mach number, and the nonlinear acoustic resistance and acoustic mass will reduce slightly.

111. Results show that the extinguishing mechanisms for water mist suppressing spray fire are dilution of fuel vapor, cooling of fire plume and radiation attenuation.

112. The transverse wave velocity and attenuation coefficients were important parameters for assessing sound properties of underwater materials, especially at an angle of oblique incidence.

113. With the KZS algorithm the wavelet attenuation correction of the X-band weather radar is realized by using the ground-clutter echo as the criterion.

114. Combined with the problems during the experiment, design a improved testing circuit of Direct Current Attenuation Method.

115. The device consists of an electromagnet moving ferronickel optical shutter interposed in a fiber gap, and it's actuation causes optical attenuation.

116. Ultrasonic attenuation can characterize the miscibility and phase morphologies of polymer blends.

117. Based on the theory that viscosity plays the main role in absorption of sound, the sound speed, coefficient of attenuation and valid elastic coefficient in viscous medium are discussed.

118. The ground reflection and attenuation must be properly accounted for in order to use the source spectrum measured at the site of the observer to predict the actual source spectrum in the free field.

119. The project of alternate half-body irradiation combined with R-CHOP to treat DLBCL has effect on apparente synergia and attenuation and could improve the patient's quality of life.

120. The assumption of equal signal and pump attenuation coefficients is no longer required, while the iteration step-size can be significantly enlarged even under saturated amplification.

121. We define two operation modes for the VOA, which may allow the attenuation ratio to decrease or increase with increasing amplification rate of the Raman amplifier.

122. A method is presented for use in establishing probability model of seismic intensity attenuation in regions with abundant data of isoseismal maps.

123. There is diffuse decreased attenuation of the cerebral cortex with a relative preservation of density in the thalami, brainstem, and cerebellum.

124. The qualitative relationship between composition ingredients and attenuation rate is also obtained by regression of the experimental results.

125. The point of degradation, due to attenuation or distortion, at which a signal becomes unusable.

126. The research result and the rain attenuation coefficient thus obtained provide valuable reference not only in WLAN and immobile wireless accessibility but also in mobile communication.

127. It implies that the THz attenuation at the operating frequency can be greatly minimized by the proper design of the diameter of the subwavelength fiber.

128. The attenuation characteristics of ground vibrations caused by pile driving were proposed.

129. Atmospheric turbulence and attenuation play an important role in laser's transmission.

130. By changing the film size can change the ferromagnetic resonance frequency and eddy current loss, and achieve the maximal attenuation to the noise with specific frequency .

131. X10 probe : attenuation of 10:1, input impedance 10 Mohm when used with a scope of 1 Mohm input impedance, input capacitance around 13pF.

132. In a model with vertical incidence of plane electromagnetic wave into plasma slabs with metal underlay, the attenuation of electromagnetic wave and reflected power are deduced.

133. For a certain degree of attenuation nature demands a certain minimum time.

134. Single wavelength collimation transmittance experiment is designed and conducted, with total effective attenuation coefficient of tissue phantoms being obtained.

135. In the end, we also talk about the development trend of techniques for noise attenuation.

136. It also considers the human physiological characteristic, seasonal attenuation of human cerebra, and to make the user profile update along the time.

137. Filter is a useful signal can pass while the frequency of the unwanted signal suppression (or attenuation) of the electronic devices.

138. Path of C-scan was programmed based on the restructured model and the principle of the smallest ultrasonic attenuation. Finally, the C-scan images of the unsymmetric composite component were received.

139. Wavelet transform involves the two-variate function of frequency and time, which makes it convenient to simultaneously compensate for attenuation of seismic energy in frequency and time domains.

140. When the mean distance between water droplets or crystals is comparable to the wavelength of the electromagnetic signals, severe attenuation can occur.

141. This paper simply introduces the current attenuation method of AC power, and then relates the characteristic, work principle and working wave-form of AC square-wave TIG welding machine.

142. Increase of total suspended matter results in decrease of transparency and increase of beam attenuation coefficient.

143. The proper use of 2D filtering after stack requires the optimum choose of apparent velocity range for eliminating, filtering operator and attenuation...

144. This paper will marry the improved genetic algorithms to traditional forward analysis, to conduct the inversion about ground's elastic modulus, density and attenuation factor.

145. Requirements of passband ripple, stopband attenuation, and achieve a minimum order.

146. The present study employs the numerical simulation software SYSNOISE to noise attenuation ( transmission loss ) of water silencers.

147. A new optical attenuation standard device developing based on coherent detection principle is presented.

148. A pattern generating section forms two patterns based on a pattern size, an embedding strength, and a pattern attenuation ratio.

149. The reasonable parameters of the convolute air cover and axial speed attenuation rule were found.

150. The AVO (Amplitude Versus Offset) preprocessing is stricter than conventional processing in NMO, multiples attenuation and amplitude preservation.

151. The formula of seismic intensity attenuation fitted by using 37 isoseismal lines of 14 earthquakes in Shandong and near area.

152. The rolloff is usually expressed as attenuation per unit interval, such as 6 dB per octave.

153. Signal attenuation in the power line environment is often great, and unpredictable.

154. The source spectrum of small-moderate earthquake can be represented by theoretical "Brune" model,[http:///attenuation.html] the geometric attenuation factor of whole path can be represented by three-segment geometric model.

155. Laser communications has many advantages such as high-data-rate, high-bandwidth, significant cost savings, small size, light weight, low power attenuation.

156. Ferromagnetic resonance frequency change might lead to signal attenuation peak frequency corresponding change.

157. Based on 249 horizontal-component digital seismograms recorded on 14 stations of Guangdong Telemetered Network, the attenuation of ground motion and site response of each station is investigated.

158. The attenuation distance and transmittance are connected together, they influence each other.

159. To accomplish the design goals it was necessary to use a 2nd order electrical filter for the high pass section(), with an "l-pad" for attenuation because of the different sensitivities of the drivers.

160. The correlation between signal attenuation and moisture absorption of the cable is studied, and a measurement method for cable moistureproof performance by using transmission attenuation is proposed.

161. Due to the surface retardation, the attenuation rate of velocity becomes quicker, which depends on water depth and jet width.

162. Optical fixed attenuator is a need to provide different based on the engineering precision attenuation device.

163. Methods: To observe and compare the rabbit sciatic nerve-trunk action potential conduction velocity and transmission attenuation time.

164. The operating distance of a laser radar system is determined on pulse energy, pulse width, beam divergence angular, atmosphere attenuation, target reflection, receiver sensitivity and so on.

165. Based upon wave theory and ignoring attenuation losses, the echo amplitude is.

166. With displacement operator method the total quantum noise is obtained, and a quantum channel model with attenuation and noise is proposed.

167. Slow attenuation property of electromagnetic energy is confirmed by experiments.

168. The attenuation of electromagnetic waves at an arbitrary angle of incidence by a nonuniform unmagnetized plasma is given by using WKB method.

169. The airflow noise attenuation capacity of the increasing thickness , decreasing pore diameter increasing airflow velocity.

170. It has a rather high transmission frequency and low attenuation.

171. Express the factors resulting in the attenuation of acoustic waves.

172. A properly designed areal pattern should yield adequate attenuation regardless the direction inthe noise approaches.

173. The equal value line diagrams are drawn to reveal the attenuation characteristics of electromagnetics in space.

174. Some (Apple included) have pointed out that all phones suffer some signal attenuation when held near the antenna.

175. The attenuation peak and the imaginary modulus peak shift to higher temperatures when the frequency increases which are thermal relaxation phenomena.

176. If the vacuum near the cathode is too poor, it will generate spark, gas ionization and ion bombardment on cathode, which can result in a fast attenuation of the emission current.

177. Flange - type variable optical attenuator for optical fiber transmission line be strong for continuously variable optical attenuation.

178. The attenuation factor of flexural wave in the pile is also analyzed.

179. Reliable estimates of the anelastic attenuation factor, Q, are desirable for improvement of resolution through inverse Q filter and to facilitate amplitude analysis.

180. Based on an actual measurement of vibration on JA31-630B mechanical press workshop, analysis vibration reasons caused and law on propagation and attenuation of the ground vibration.

181. The law that stress, strain and pressure attenuation varied with punch rate and time was obtained by means of compression experiments.

182. The transmission characteristics are investigated that includes the impendence, attenuation and noise performance of the low-voltage power line carrier channel.

183. The attenuation factor, is determined by the biodegradation rate and time.

184. The horizontal frost-heaving force is attenuated in the process of excavation with the maximum attenuation rate being 40 percent.

185. The acoustic parameters include complex reflection and transmission coefficient (echo reduction and insertion loss), attenuation coefficient[http://], complex acoustic impedance and sound speed.

186. The system has strong interference resistance, avoids signal attenuation and distortion, and has excellent working performance.

187. To counter the characteristic of suppress jamming and center of mass jamming, this paper establishes the models of noise jamming, signal power attenuation and center of mass jamming.

188. It is concluded from the presented results that the attenuation rate is weakly related to radius of tunnel and conductivity of tunnel wall. For a tunnel with arbitrary cross-section ...

189. Transmission equation of acoustic wave in layered media is given. By numerical calculation, the effects of acoustic parameters of each layer on the sound wave reflection and attenuation is analyzed.

190. In addition, the influence of the equivalent inductance, the equivalent resistance and time-jitters of the diode on the residual waveform of a half sinewave with attenuation is discussed.

191. Experimental techniques based on the dynamics of shock wave attenuation were used to produce decaying triangular shock pulse in LY12 Al samples of plate-impact spall tests.

192. That's because low-frequency electromagnetic waves pass through skin with little attenuation, a route that also shelters them from outside interference.

193. The solutions of recoverable vehicle-parachute system motion equations during the work period of an impact attenuation rocket are given in the general form first.

194. Note: The position of these ground locators can be adjusted later to tweak the falloff of the shadow attenuation.

195. For diffusion burner, burning temperature is lowest, attenuation of velocity is quick.

196. The Color, Multiplier and Attenuation parameters can all be animated over time.

197. Furthermore, a new experimental method used to study the relation between the attenuation coefficient and the density or the depth of the scattering matter is proposed.

198. The liquor density influences the muzzle velocity and the attenuation of spray droplets'locomotion velocity.

199. After ultraviolet irradiation, the fiber attenuation increases obviously at several absorption peaks, whereas the value in low absorption region remains almost no change.

200. Even with the attenuation factor blending into our lighting equation, still, the maximum amount of light a surface receives is (N. L).

201. In order to solve the problem, the calculation formula of microwave attenuation constant and phase constant of weakly ionized dusty plasma was deduce.

202. AIM: To study the role of carbon monoxide (CO) in the mechanism of cholecystokinin-octapeptide (CCK-8) for attenuation of acute lung injury (ALI) induced by lipopolysaccharide (LPS).

203. Study of a number of small seismic swarms also gives us the preliminary understanding that the attenuation rate of seismic coda waves of swarms does not change considerably.

204. The model can correctly reflect the attenuation of electromagnetic wave in the bio tissue.

205. It is demonstrated by theory and data observed in different time at same location that the attenuation coefficient of PAR is independent of the intensity of radiation.

206. In this paper, a mathematical model is used to characterize this random signals, and a time averaging method is used for obtaining the ultrasonic attenuation coefficient.

207. Objective To observe the sound attenuation effect of several kinds of hearing protectors (earplugs and earmuffs ) in an infrasound generator sound field.

208. Both bowknot angle and dissipative angle enhance as the area of hysteresis loop increases, and attenuation enhances as viscosity coefficient of pore fluid increases.

209. Via living example analyses, it should be concluded that the attenuation of organic pollutants operated by freezing action of ice-layer on rivers during the icebound season couldn't be ignored.

210. Dispersion and attenuation characteristics of torsional modes of ultrasonic guided wave in pipe with viscoelastic coating are investigated.

211. An adaptive sliding mode control based on fuzzy wavelet network is proposed to guarantee the effects of the tracking error and external disturbances can be attenuated to a specific attenuation level.

212. Local attenuation in western Nagano, central Japan, estimated from seismograms recorded in three boreholes.

213. The disadvantage of FSO over fiber is that laser power attenuation through the atmosphere is variable and difficult to predict, for it is weather dependent.

214. The investigation of the measure principles of Direct Current Attenuation Method, Voltage Integral Method[http://], and Direct Load Method.

215. The transferab 1 e probability density function of the impact attenuation vibration system is deduced.

216. The problems of atmospheric attenuation, light intensity fluctuation and beam alignment in laser transmission have become one of the bottlenecks restricting communication distance and performance.

217. What should improve next is user experience symphonious effect, it includes factor of 4 crucial point: Delay when, attenuation, frequency is answered and echo is controlled.

218. The signal will have attenuation and disturbance due to environmental factors in the process of VLF radio wave propagation, which will impact the reliability of submarine communication.

219. To reduce vertical dampening, the component is available with additional attenuation.

220. In the future, the higher frequencies will be applied in the wireless communication , as a result, path loss attenuation will be even more serious.

221. Elastic energy attenuation degree and plastic energy change rate were defined.

222. In this paper, the principle and primary results of measure ultrasonic sound velocity and attenuation coefficient by ultrasonic syntonic method are introduced.

223. And then the paper validates the suitableness of the stress attenuation in the area of shock wave.

224. The attenuation poles will improve the selectivity of the diplexer and can be obtained by modifying the traditional Chebyshev frequency response.

225. Air trapping secondary to bronchial or bronchiolar obstruction may produce focal zones of decreased attenuation, an appearance that can be enhanced by using expiratory CT .

226. For improved solar heat gain attenuation, reflective coated glass can be used.

227. Attenuation factor of on index function fitting, both poor value error square is 0.000127, indicating that this index function can describe the sun battery array attenuation factor came away.

228. The attenuation coefficient is determined to at least partially compensate for the target angle heel effect.

229. The rock acoustic parameters in this paper include wave amplitude, spectral amplitude, spectral area, spectral density, wave velocity and attenuation coefficient etc.

230. It analyzes breakdown characteristic of the delay-line and estimates height attenuation rate of the pulse transmitted by the delay-line.

231. Combined with the problems during the experiment, design a improved testing circuit of Current Attenuation Method.

232. Based on the static and dynamic model theoretically, the attenuation regular pattern of positive pulse signal is discussed in this paper.

233. On the basis of the observational data, this paper also discusses the probable reasons causing the variation of the coda wave attenuation rate both before and after strong events.

234. Meanwhile, the existence of the acoustic attenuation coefficient benefits the axial resolution.

235. In any case, always short wavelength signal attenuation by this process, enhanced long-wavelength signal.

236. The anti - irradiation cover glass can resist various particles existing in space and battery capacity attenuation.

237. With the features of super brightness, low attenuation, high reliability, good consistancy, and high weatherability.

238. The attenuation rate of horizontal vibration is different from that of vertical vibration and could not be expressed by using a same formula.

239. The electrostatic charge attenuation velocity of material reflects its leaking performance, electrostatic charge attenuation time is used to evaluate anti-electrostatic performance of material.

240. We studied the attenuation electromagnetic wave in conductive dielectric materials by the logarithmic spiral method in the paper.

241. Because of ultrasonic attenuation in organism is proportional to frequency, 2 MHz ultrasonic distance and receiving sensitivity.

242. The optical signal attenuation caused by fog has a great influence on the performance of the atmospheric laser communication system.

243. Finally, the compatibility test shows that the screen layer composites with magnetic absorber layer reveals a wide broadband absorption and fine attenuation ratio of electromagnetic-wave.

244. The attenuation weak spot is the black strip in the lower left corner of the band.

245. Results Methyl scopolamine, a peripheral muscarinic antagonist, leaded to a significant attenuation in the hyperthermic response to open-field exposure compared with rats dosed with saline.

246. The basic yields of a CT scan, the CT numbers, are related to the attenuation coefficient of the diagnostic X-rays, actually reflect the electron densities of the individual tissue concerned.

247. It is necessary for high precision servo systems to use phase lag compensation with large attenuation to make the system stably conditioned.

248. Simulation results showed that, with the same roughness of a tunnel, both the delay spread and the signal attenuation varied with the carrier frequency.