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151. The variable or distance to the origin in spherical coordinates.

152. Corrected for both chromatic and spherical aberration, as a lens.

153. This paper introduced the preparation process of spherical high activity polypropylene ( PP ) catalyst HDC.

154. We considered intensity distribution of light focused by a high numerical aperture lens without spherical aberration through a planar interface between materials of mismatch refractive index.

155. A method of surveying the index of refraction of thin lens material with the help of images made by spherical reflection is given.

156. Dongfeng brand FG35mm film projector series, dome screen, spherical film projector and related complete set equipment.

157. A spherical or oval nucleus is near the centre of the cell.

158. And both variation quantities of the nearest atomic distance and cohesive energy of the spherical particles are lower than those of cubic ones.

159. Double chrysanthemums have many rows of petals and are usually spherical or hemispherical.

160. This is evident from the spherical model when the two points are diametrically opposite.

161. In order to improve the stereospecificity of DQ spherical catalyst, the synthetic process and recipe of the catalyst had been studied.

162. The approach starts from an analysis of spherical harmonics and finds out a quadratic polynomial form of environment mapping.

163. On the basis of the microscopic theory on ion gas, internal energy of ion gas in electrostatic field was studied with a plate condenser and a spherical capacitor.

164. In the present study, an aberration theory for both wide and narrow electron beams in a combined electromagnetic focusing spherical cathode lens system is discussed.

165. An algorithm of high accuracy spherical triangulation location is proposed which is based on spherical geometry.

166. A deciduous North American shrub ( Cephalanthus occidentalis ) having opposite leaves and spherical clusters of white flowers.

167. A heuristic strategy is presented to solve the point location problem in spherical triangulation mesh.

168. OK, so note how the equation of this horizontal plane in spherical coordinates has become a little bit weird.

169. This paper presents a new method, the non die explosive forming method, which has successfully solved the forming of thin wall and extra thin wall spherical parts.

170. The stress distribution of curved surface with different shapes, such as cylindrical surface, spherical surface, paraboloidal surface and ellipsoid surface, is analyzed based on Membrane theory.

171. In this paper, a simple method of calculation is given, the method is common and can solve some questions of central force field of spherical symmetry.

172. Under the effective mass approximation, the paper studys the effect of dielectric confinement on an exciton in spherical and cubic QD(quantum dot).

173. To study the effect of gravity eccentricity on the ranges, the expression of gravity was educed using spherical harmonic function when the earth is considered as an normal ellipsoid or sphere.

174. By using a concise method, the charge distribution on the surface of a thick spherical conducting shell revolving in a homogeneous magnetic field is obtained.

175. Tanks may be spherical or cylindrical in shape and are mounted in fixed locations as stationary vessels or on railcar or truck chassis for easy transportation.

176. For instance, consider how cosmologists used the microwave background to rule out a finite spherical geometry.

177. A line contacted spherical bearing pair structure whose frictional characteristics are better than the present ones is put forward.

178. In weightlessness,(http://sentencedict.com/spherical.html) a drop of liquid takes a spherical shape.

179. On our spherical earth each segment delineates a lune called a time zone.

180. The Milky Way is a spiral galaxy, having pinwheel-shaped arms of gas, dust, and stars lying in a flattened disc, and extending directly out from a spherical nucleus of stars in the central region.