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61. The said method of the present invention improves the dealcoholization degree of carbamate-containing alkyl silane and has high selectivity of the product of isocyanate-containing alkyl silane.

62. Accelerated ageing test shows that Pt— Sn— Yb is a reforming catalyst of good performance. The activity stability and selectivity of Pt—Sn—Yb catalyst are better.

63. The poor acrolein selectivity of this catalyst was improved by continuous use in the catalytic oxidation for making the particle size of the dispersed bismuth molybdate larger.

64. When classic mesoporous aluminosilicates as catalysts, both phenol conversion and 2, 4 - DTBP selectivity are very low.

65. The conversion of terpineol was 94.1% and the selectivity of terpinyl acetate was 93.3% under the optimal reaction conditions.

66. Effecrts of calcium modified ZSM-5 zeolites and reaction conditions on the catalytic activity and selectivity of toluene ethylation have been studied.

67. Detailed research contents are as follows:(1) Succeed in selectivity electrochemical fluorinating pyridine, imidazole and 1,2,4-triazole.

68. It is showed that the conversion ratio of dodecene and the selectivity of producing 2-alkylbenzene are slightly increased with increasing molar ratio of benzene to dodecene, respectively.

69. Conclusion:The serum preparation derived from rabbits after the gastrolavage with Naja naja atra venom inhibited the growth of human lung adenocarcinoma cell line, which is high selectivity.

70. A hydrocracking catalyst with high selectivity to middle distillates was developed.

71. The products selectivity was affected by the cyclohexane oxidation rate controlled by the capacity of coordinating chitosan or chitin to metalloporphyrin.

72. It was found that the Y-zeolite with lower total acid and higher L-acid ratio was beneficial to middle distillate selectivity and better activity.

73. The dominant reaction pathways and the effect of reaction temperature and type of zeolites on the yield and selectivity of benzene formed during catalytic cracking of cumene were investigated.

74. Sintered gas sensors made from bismuth molybdate doped with cobalt have a high sensitivity and selectivity to reducing gases such as ethanol. And insensitivity to butane and carbon monoxide.

75. IBX is a new dehydrogenating reagent with such advantages as mild reaction condition, high selectivity, convenient work-up and recyclable.

76. One system found on the basis of HPLC system, which was suit for high temperature. The temperature selectivity was studied through analyzing benzene homologue and aromatic hydrocarbons.

77. In the isomerization of vinyl norbornene, the conversion of VNB and selectivity of ENB are both almost 100%.

78. Such main body's selectivity has the characteristics of activity, creativity, and self - dependence.

79. Mercapto cotton has high absorption, complete quantitative extrication and high selectivity of determining element.

80. The characteristics of the uranyl ternary complex is good instability, sensibility, selectivity and behavior of extraction.

81. With less selectivity in trawling,(www.Sentencedict.com) there will be inevitably much by-catch and many discards during catching the target species.

82. Since there are strong local adjacent FM signals on 89.9 and 90.1 MHz, 90.0 MHz is an ideal even channel for selectivity testing.

83. Such selectivity and effective equimolar reactivity has never been demonstrated in a living animal.

84. The selectivity is reasonably good, even at the high end of the band. A wave trap can be used to null nearby stations.

85. The selectivity leakage protective system can give out alarming signal or cut off the fault branches selectively when the leakage fault happens, and the non-fault branches are working normally.

86. Their adsorption capacity and selectivity for p - xylene were high.

87. In current study of medicine and pesticide, pyridazinone compound has become a focus due to its excellent selectivity and high activity.

88. At present the common used alcohol sensor is fuel cell type and semiconductor type, with weakness being either high price or poor selectivity and demanding the heat device.

89. The female insect has a clear selectivity on the location and development stage of the fruit for them to oviposit.

90. Methods: We used virus proliferation assay cell viability assay to evaluate the proliferation and cytolysis selectivity of CNHK500.