查询词典 C.H.

A novel carbonyl transposition led by anilines'nucleophilic addition to methyl 2-keto α-D-glucopyranoside was discovered. And the mechanism of the reaction concerned to an enol rearrangment was provided through tracing the change of 〓H-NMR and 〓C-NMR of a hemiacetal intermediate which was obtained in the reaction of o-phenylene diamine with 2-keto glycoside. Both the intermediate and the converting product were identified by 〓H-NMR,〓C-NMR,〓H-〓H COSY and HMQC.

一、发现了2-位氧化α-甲基D-葡萄糖苷的芳胺亲核加成引起羰基转位的新方法，利用核磁共振氢谱及碳谱对邻苯二胺与2-位氧化α-甲基D-葡萄糖苷加成生成的稳定中间体半缩酮化合物在氘代丙酮中的变化进行跟踪，结合对转化产物的氢氢相关谱和HMQC结构确证，提出了该反应中2-位羰基通过烯醇化互变而转至3-位的机理并得到了验证。

J5 ^' B9 d Wednesday will mark the first regular-season start for right-hander Chien-Ming Wang since he limped off the field on June 15 in Houston, where he injured his right foot while running the bases in an Interleague contest.

G1 K！？* z/ s/ C' t2 h' J H 星期三将是右投手王建民自去年6月15日在休士顿一拐一拐的退场后，於球季正式比赛的第一场先发，当时他在跨联盟比赛时跑垒时伤了他的右脚。； C； O5 P9 }3 V3 c*% U； S4 H， U

Soil bulk density of Z treatment was gradually increased in three years, which was significantly higher than that of C treatment in 0~20cm soil layer. 2.2 Effects of tillage systems on soil moisture content There was significantly positive correlation between soil pondage and rainfall of the same period in R, H and Z treatments, and the correlation coefficient was higher than C, especially the H treatment, its correlation coefficient was 0.70**, which reached a highly significant level, and its soil water retention was better than C.

免耕模式土壤容重在0~20cm均逐渐增高，最终显著高于常规耕作模式。2.2耕作模式对土壤水分的影响 0~20cm土层旋耕、耙耕和免耕模式土壤贮水量与同期降雨量显著正相关，相关系数皆大于常规耕作模式，耙耕相关系数为0.70**，达到极显著水平，土壤保水性好于常规耕作模式。

At salinities of 20-35 ppt, eggs required 28 h, 45 h and nearly 4-5 days to develop into protozoea I at 30°C, 25°C and 20°C, respectively.

在盐度2035ppt之间，温度30、 25及20℃孵化所需时间分别为28、45小时及45天，才能变态至蚤状幼体第一期。

The effects of different of categories surfactants, the proportion of surfactant and cosurfactant , the chain lengths of alcohol and alkane, temperatures and pH values on the W/O microemulsion phase areas are systematically studied in the dissertation. SEM and laser scatting techniques are used to verify particles'sizes of W/O microemulsion. Consequently, a system TritonX-100/n-C〓H〓OH (weight ratio 1: 1)/C〓H〓/H〓O is obtained which is a stable system with relatively large W/O microemulsion phase area.

本文系统研究了表面活性剂种类、助表面活性剂的链长、表面活性剂和醇的配比、烷烃的链长以及温度、pH值等对W/O微乳液相区域的影响，并用SEM、激光光散射等对微乳液粒度进行了表征，从而获得一种稳定的、W/O微乳液区域较大的体系：壬基苯酚聚氧乙烯醚(TritonX-100)/正戊醇(质量比1：1)/环己烷/水体系。

H and M c are wetter than middle soil water content, belongs to mesophytes; The optimal water niche of Mosla scabra, on photosynthesis is more wetter than that of M.h and Me, the optimal water niche between mesophytes and hygrophytes, and leaning to hygrophytes; The photosynthetic water condition of M.d is arid environments, and its ecotype exits between mesophytes and xerophytes, and leaning to xerophytes.5 M.h and M.s are locating between shade plants and sun plants, while M.c and M.d obviously belong to sun plants.

杭州石荠苧与华荠苧光合的最适水分条件是中等偏湿，其水分生态类型应属于中生植物；石荠苧光合的最适水分条件比杭州石荠苧与华荠苧光合的最适水分条件要求更湿，其水分生态类型介于中生和湿生植物之间，更偏向湿生；小鱼仙草光合作用的水分生态条件是干旱条件，其水分生态类型介于中生与旱生植物之间，更偏向旱生。

Under the conditions of 24 h fumigation with 30 μL/L dosage at 19 °C, 25 °C and 31 °C, the adult corrected mortalities were 83.108%, 62% and 42%, respectively. These results indicated that the EtF killed the adult weevils in a very short time period, and the fumigation efficacy at relatively lower temperature was better than that at relatively higher temperature. Under the conditions of 20, 25 and 30 °C and 24 h fumigation

1.2 甲酸乙酯对赤拟谷盗的熏蒸活性同样采用广口瓶密闭熏蒸法，在不同的药剂浓度、处理时间和温度下系统研究甲酸乙酯对赤拟谷盗T.castaneum卵、低龄幼虫、高龄幼虫、蛹以及成虫的熏蒸致死作用，结果表明处理时间和温度显著影响甲酸乙酯对赤拟谷盗各虫态的熏蒸致死效果，48h内就能发

TiO〓/K-M supported Ag/SiO〓 composite ceramic membrane tubes have been prepared and used as a membrane reactor for selective separation of C〓H〓 during the catalytic reaction process of CO〓 partially oxidating C〓H〓. By removing C〓H〓 produced in the catalytic reaction, thermodynamic balance of the reaction is upset and some side reactions from C〓H〓 are avoided, thus the conversion rate of C〓H〓 and the selectivity to C〓H〓 are effectively increased.

本研究设计、制备了硅藻土—莫来石陶瓷管负载的Ag/SiO〓复合膜，并将其应用于二氧化碳部分氧化乙烷催化反应过程中产物乙烯的选择性分离，有效地提高了催化反应的反应物乙烷转化率和产物乙烯选择性。

In the past, researches focused only on sole function of bacteria such as tricalcium phosphate or ferric phosphate solubilization. In order to efficiently develop superior phosphate solubilizing microorganisms which are useful on various crops, a team includes Professors C.C. Young, C.C. Tang, S.H. Su, H.J. Chen and C.T. Lo in National Chung Hsing University and National Formosa University was established. Microbial consortiums include phosphate solubilizing bacteria, phosphate solubilizing actinomycetes, phosphate solubilizing yeast, and phosphate solubilizing fungi will be designed in the present study and their capabilities to promote crop growth will be demonstrated. The suitable phosphate solubilizing bacterial formula will also be designed. Consideration for the specificity and adaptation of phosphate solubilizing microorganisms to their host crops, the designed biofertilizers will be used as inoculants to increase the yields of various crops meanwhile reduce the overdose usage of chemical fertilizers.

过去研究溶磷菌主要是在各别溶磷之功能上之研发，如溶磷酸钙及溶磷铁，本计画为缩短不同菌种筛选在不同作物之效应评估工作，以组成一研究团队进行不同类型菌种之应用评估，成员涵盖二个大学的研究团队，包括杨秋忠、谭镇中、苏孝华及罗朝村等教授，分别研究细菌、放线菌、酵母菌及木霉真菌，另在菌剂生产配方由陈鸿基教授研究，以提高多元化应用土壤磷素之有效利用，并达到不同作物之应用效应评估，期以探讨开发不同作物专用之微生物肥料之可行性及问题，以减少化学磷肥之施用，降低土壤劣化提高农民所得之目的。

Durocher D.F., Mattina C.F., Selke W.A. Diffusion of gasseous component sthrough the wrapper of a cigarette［J］.

烟气中的总粒相物和焦油量随卷烟纸自然透气度增加而降低，这与Müller K.H。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新