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121. Bragg structure is usually a kind of periodic structure with continuous corrugation phase, which has excellent mode selectivity and frequency selectivity properties.

122. The method provides an effective approach for improving selectivity of IGA and exhibits practical prospect.

123. Some recent important advances in fluorimetry with respect to sensitivity, selectivity, instrumentation, time-resolved spectroscopy and application were briefly introduced.

124. The enniatins have been shown to act as ionophores. Recently their effects on acyl-CoA cholesterol transferase, as nematocides and the selectivity of their antitumor action have received more focus.

125. The effects of the decomposition temperature of zeolite catalyst on the Brosted acidity of HZSM-5 and the conversion and selectivity of formaldehyde were investigated.

126. Development of electrochemical partial fluorination were introduced. The factor: effecting the selectivity of fluorination were reviewed.

127. In this paper, the measure of saccharin in preserved fruits by ion selectivity electrode was researched.

128. In open - pit operations, bench height is an important factor affecting mining selectivity.

129. The selectivity and sensitivity of the super - regenerative receiver was improved under the modern integrated circuit technology.

130. Dual - Tree Complex Wavelet Transform ( DT - CWT ) can provide shift invariance and directional selectivity.

131. The results showed that inorganic particles have no selection on water and alcohol but the carbon powder has better selectivity on alcohol.

132. Conclusion The perforation neoplasty and high selectivity gastric neurectomy can resolve perforation and ulcer can save another operation.

133. In this study, the chiral selectivity of arginase was investigated by means of molecular dynamics and molecular docking.

134. The catalytic activity and selectivity of the catalysts for n-pentane isomerization at ambient temperature were investigated.

135. Cyclophosphamide an alkylating agent designed to improve the selectivity of cancer drugs approved by FDA.

136. In the series reactor for the ozonization of Cinnamaldehyde the utilization ratio of ozone is over 90%. The conditions and the selectivity of the reaction are analysed.

137. Tisupurine is more water-soluble than mercaptopurine (6-MP). Easily release 6-MP under acidic condition or the existing of sulfhydryl compounds, has selectivity to tumor tissue.

138. Improved yield and selectivity are observed while applying this technology on diazo - coupling reactions.

139. The selectivity of carfentrazone-ethyl, Metostrey and tribenuron-methyl were higher with less influence on other species, and safe to gramineous vegetable such as ryegrass.

140. The new chromogenic reagents with which gold was determinated by spectrophotometry in China since 1991 were reviewed, their spectrophotometric analytical characteristic and selectivity were described.

141. The triphosgene, being as the substitute for phosgene and diphosgene in synthesis, is not only low-toxic but also safe and convenient to use with mild conditions,(www.Sentencedict.com) good selectivity and high yields.

142. The HZSM 23 zeolite with smaller pore size than HZSM 5 zeolite was beneficial to enhancement of the selectivity for anisole plus methylanisole , as well asp cresol.

143. The developing history of PNP from mononuclear to dinuclear and trinuclear was introduced, and influences of PNP structure on the stability, activity and selectivity of the catalyst were emphasized.

144. The results show that the percent conversion of pinene is 100%, the catalyst's selectivity is over 97%, and it can be used 25 times at least.

145. The results showed that this method had good selectivity, celerity, stabilization and repetition.

146. Due to the frequency selectivity, non-stationary and multipath effect of the ionosphere, it is difficult to measure the beam width of OTHR antenna in azimuth of this kind of radar.

147. The latter, far more preferable route can be accomplished - if a scenarist is willing to exercise fully his right of esthetic selectivity.

148. The filter has a pair of transmission zeros around the passband, excellent frequency response and frequency selectivity.

149. The addition of thorium promoted the chain propagation at low reaction temperature, but had little effect on methane selectivity and light hydrocarbon.

150. Under optimum conditions, the conversion ofa-pinene was almost complete, yield of 2,3-epoxypinane was 96%and the selectivity was 98%.