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31. Based on the theory of acoustics, this paper analyzes the character of geometrical spreading loss of finite line sound source on three types of directivity-monopole, intermediate pole and dipole.

32. Based on geometrical optics, plane layered model and sphere layered model are used to analyze the laser transmission path and the declination angle from direct path.

33. To solve the nonlinear problem, such as material nonlinearity and geometrical nonlinearity, incremental method was used.

34. Wave optics, however, tells us that no sharp shadows can exist , since some of the light does reach into the geometrical shadow region.

35. With CD40 lubricating oil as work medium, under the engine cooling system work conditions, 21 geometrical schemes of stainless steel offset strip fins were studied.

36. For infrared optical systems a point spread function is calculated in terms of the spot diagram obtained through geometrical ray trace or the theory of Kirchhoff diffraction.

37. Object location is defined as coming up with three-dimensional coordinate expression through binocular vision model analysis using geometrical relationship.

38. An aircraft servo loop is designed from the variable structure system (VSS) theory with a detailed procedure of a controller design and an intuitively geometrical sense of the design method .

39. The formula of straightness error of the machined surface was also founded through geometrical analysis.

40. While the appearance of K anisotropy alone the microcrack front along with its physical significance and geometrical connotation is a great challenge to traditional conception and compute method of K.

41. A set of formulas are deduced form the geometrical relationship of iceland spar.

42. The geometrical structure is used to analyze homograph quantitatively, the fine discrimination between planar objects can be shown.

43. Mine fault network is a fractal system with statistic self-similarity. Its complexity degree can be quantitatively evaluated using fractal dimension that can describe geometrical irregularity.

44. Firstly, according to iris is a kind of cirque, algorithm based on geometrical feature is used to locate outer boundary of iris cursorily.

45. It simulates the tube bundle, folding plate and other geometrical forms with multi orifices and distributed resistance.

46. A hybrid technique for combining moment methods (MM) with the uniform geometrical theory of diffraction (UTD) was employed to calculate the radiation pattern of the aircraft antenna.

47. In order to improve the speedway road inspecting instrument, a new inspecting system based on geometrical op- tics triangulation and using no-linearity noise filter is presented.

48. A theoretic formula on how to change the geometrical shape of a magnet and augment the range of uniform magnetic field is brought forward in this paper by simulation.

49. This article brings to Light the internal relations and difference between single pitch diameter and actual pitch diameter by means of geometrical analysis of several parameters of pitch diameter.

50. Based on Fermat's theorem, the law of reflection and refraction is obtained, and the geometrical ray tracing method of reflected light is introduced.

51. The precise geometrical shape of the glass makes wine taster enjoy most of the mellow aroma of the wine with least wine set.

52. In the past twenty years, owing to the discovery of Berry's geometrical phase in 1984 , a lot of efforts have been made on quantal adiabatic theorem and geometrical phase .

53. Geometry texture is constituted by anomalous small bumpiness,(www.Sentencedict.com) it lies in microcosmic geometrical form.

54. The laws of the ultimate capacity ratio of K-joints and KK joints (namely multiplanar coefficient) varying with the main geometrical parameters were obtained.

55. The limit pressure angle is related to such factors as offset angle, mean spiral angle, pitch cone angle and mean pitch cone diameter, not to geometrical shape of the tooth surface.

56. In the second topic, we propose and demonstrate a geometrical arrangement for free of pixel-misregistration during readout process with the rotation of disc to reduce the bit-error rate.

57. The geometrical parameter measurement is one of the most important research subject of metrology.

58. The cross-section design according to the invention allows the geometrical moment of inertia to be substantially increased as compared to conventional cross-section designs.

59. Housetop is Shuang Liang, abound geometrical aesthetic feeling, 5 grille and secure 5 horn glazing to facing surfy sea.

60. The geometrical model of high resolution satellite image is foundation to image processing.