Random good picture Not show

31. The radon level in the basement was impermissibly high.

32. Radon: Chemical element, chemical symbol Rn, atomic number 86.

33. Based on above analysis, a acceleration estimation method based on Radon Wigner Transform(RWT) is proposed.

34. A radon proof hydrous paint could well avoid the perniciousness of radon. The results of experiment and ...

35. Experts noted that the current urban living environment is the main source of radioactive hazards of indoor radon and radioelement content standard building materials.

36. To describe the inhomogeneity of temporal - spatial distribution of station, showing Radon anomaly, CV value is employed.

37. Scintillation flask method for measuring radon concentration in the air.

38. Objective To investigate the contaminated condition of formaldehyde, benzene series, radon in doors air of newly decorated residences.

39. This paper presents discussions of the radon - affecting factors and radon prevention measures.

40. The radioactive dust will contribute to higher levels of uranium and radon.

41. On the basis of distribution of radioactive elements and geological background , the theory equation of radon exhalation rate is derived from the decay rule of radioactive elements and gas diffusion.

42. Sections 301 - 311, added in 1988,[www.Sentencedict.com] relate to indoor radon abatement.

43. This article analyses the reasons of the indoors air pollution production and brings up the pollution mainly consists of formaldehyde, benzene series, ammonia and radon.

44. If granite, brick sand, cement and gypsum type, especially with radioelement natural stones, Yi release radon.

45. The invention adopts the silicon detector and sets a high-pressure collecting electrode so as to improve the collecting efficiency of the radon and the detection sensitivity and accuracy of apparatus.

46. Radon gas in the environment, particles of the fire-resistant material asbestos and air pollution also increase the risk.

47. The radon migration in uranium prospecting surveyed is discussed with a newly-developed method. The action of "relay transmission" presented is the main way of radon migration.

48. Analysis and modeling of statistical distributions of indoor radon concentration from data valorization to mapping and simulations are critical issues for real decision-making processes.

49. The main factors of radiation hazards in uranium mines are radioactive dust, radon and its daughters.

50. An estimate of the global distribution of radon emissions from the ocean.

51. This paper describes the results of Dec. 1986 and Jul. 1988 radon intercomparison exercises for the balloon method.

52. The daughter nuclides of radon and thoron tend to become attached.

53. Generally, indoor radon is the main source of construction materials, such as granite, tile and plaster, particularly the stones containing radioelement Yi release radon.

54. Radon can cause lung cancer, leukemia, albinism and other pathological changes in respiratory tract.

55. This method can be used for measuring not only the thoron in exhaled air, but also the radon and thoron in environmental air.

56. We have showed that the Radon transform of the cross Wigner distribution function is a separable multiplication of fractional Fourier transform of these functions.

57. INTERNAL CAUSES OF RADON AND ITS DAUGHTERS UPWARD MIGRATION AND CLUSTER PHENOMENON.

58. The environment Radon logger FD 216 is an instantaneous surveying instrument in situ.

59. Noble gas( or inert gas ):Any of the six chemical elements that make up the rightmost group of the periodic table as usually arranged: helium, neon, argon, krypton, xenon, and radon.

60. There radon concentrations will severalfold to hundred times increasing when using spring water in the hotel rooms.