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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://sentencedict.com/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.