经产

Their structures were characterized by IR, 1H NMR, of which 4-chloro- 2-methyl-7-(2-bromoethoxy) isoflavone, 2, 4\'-dimethyl-7-(2-bromo-ethoxy)isoflavone and 2-methyl-7-(2-bromoethoxy) isoflavone are rarely reported so far.4\'-chloro-2-methyl-7-(3-bromopropoxy)isoflavone, 2, 4\'-dimethyl-7-(3-bromo- propoxy) isoflavone, 2-methyl-7-(3-bromopropoxy) isoflavone, 4\'-methoxy-2-methyl-7-(3-bromopropoxy) isoflavone and 4\'-hydroxy-2-methyl-7-(3-bromopropoxy) isoflavone were gained by reacting 7-hydroxy-2-methyl isoflavone derivatives with 1, 3-dibromo- propane, respectively.

第三章(来源：73ABC论文网www.abclunwen.com)在丙酮溶液中以K_2CO_3为碱，使溴乙氧基异黄酮和溴丙氧基异黄酮与咪唑偶合，以较高的产率合成出10种目标化合物：2-甲基-4′-氯-7-2-(1-咪唑基乙氧基异黄酮、2，4′-二甲基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-4′-甲氧基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-4′-羟基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-4′-氯-7-3-(1-咪唑基丙氧基异黄酮、2，4′-二甲基-7-3-(1-咪唑基丙氧基异黄酮、2-甲基-7-3-(1-咪唑基丙氧基异黄酮、2-甲基-4′-甲氧基-7-3-(1-咪唑基丙氧基异黄酮、2-甲基-4′-羟基-7-3-(1-咪唑基丙氧基异黄酮，经IR、~1H NMR、~(13)C NMR、元素分析等对其结构进行了表征，10种目标产物均未见文(来源：ABC论文cccccc网www.abclunwen.com)献报道。

The results indicate that (1) After acclimation and induction, Phosphorus Accumulating Organism not only has the characteristics of denitrification, but also has the characteristics of takeup phosphate in aerobic;(2) Denitrifying phosphate accumulating bacteria using NO3- as electron acceptor indeed existed in the conventional enhanced biological phosphorus removal system;(3) The facultative anaerobe seperated during the process of acclimation are Corynebacterium, Pseudodiphtheria corynebacterium, Staphylococcus and Moraxella; all of which can be functioned as denitrifying phosphorus accumulating to various degree.

试验结果表明：(1)好氧聚磷菌经驯化诱导后不但具有反硝化产氮特性，而且具有好氧聚磷特性；(2)在传统的A2O 工艺中存在有以NO3-为电子受体的反硝化聚磷菌；(3)在驯化过程中分离到的兼性厌氧微生物有棒状杆菌属、假白喉棒杆菌、葡萄球菌属及莫拉氏菌属，且都有不同程度的反硝化聚磷功能。

With sodium acetate as catalyst, inosine was esterified with acetic anhydride in the yield of 92% to give 2',3',5'-triacetyl inosine, which was treated with pyridine and phosphorus oxychloride to form a pyridinium solution, followed by performing an amination at 40℃ and 0.25~0.30 MPa to achieve adenosine in the yield of 67%.

肌苷在醋酸钠存在下与醋酸酐发生酯化反应以92%的收率得到2'，3'，5'-三乙酰肌苷，其化合物经吡啶和三氯氧磷处理形成吡啶盐溶液，未分离直接在40℃、0.25~0.30 MPa压力下进行氨解反应以67%产率制得腺苷。

Facing appeals of constitutionary-minded intellectuals and officials. Qing government reformed the bureaucratic system and the Eight Banner system in order to remove boundaries between Manchus and Han: administratively, occupationally, residentially, and socially. Authough these measures took positive parts in pushing political and social changes, Qing government was doomed not to accomplish dual historical tasks of political and national confirmination.

在资产阶级立宪派和赞同立宪官僚的吁请和擘画下，清政府一则从变革官制入手，渐次删除满汉分缺，划一满汉升途，以塞众口&畸轻畸重&之指责；一则从变通旗制出发，逐步消除满汉之间在居住、交产、婚姻、司法、职业、教育、姓氏称谓、风尚习俗及社会控制体系诸方面的藩篱和经界，以敦情好而泯嫌隙。

Dept. of Food Science and nutrition, Zhejinag University, Hangzhou 30029, ChinaAbstract: A producing strain with yellow pigment was isolated from soil and was identified as Rhodococcus sp.. The pigment is considered to be carotenoid.

摘 要：从土壤中分离到一株黄色色素产生菌，经鉴定该菌为红球菌属（Rhodococcus的一个种，所产色素为类胡萝卜素。

A pair of dominant strains So2# and Ni2#,which were complementary in performance and helpful to improve the technical economy index of sauce production,was screened from 10 experimental strains by comprehensive comparison of their fermentative resolution ability,protease system,sporiparous ability,product flavor and so on.

通过全面分析对比10种参试菌株的发酵分解能力、蛋白酶系组成、产孢子能力、成曲香型等指标，挑选出2株性能互补、能提高酱油产量、质量的优势菌株So2#和Ni2#，经混合发酵并与沪酿3.042米曲霉菌单独发酵比较，其制品的滤过体积、滤过氨基酸态氮、滤过全氮成倍提高，并使酱油制品的红色度提高，香气和滋味变得丰满、复合。

Reduction of N-substituted-4-nitrophthalimides(1)to the corresponding amines(2)was performed in hydrochloric acid at 40 ℃ using stannous chloride as reduction agent, yielding produc...

氮气保护条件下，2与乙醇在固体光气作用下生成(2 取代 1，3 二酮 2，3 二氢 1H 异吲哚 5 )氨基甲酸乙酯(3)，3的产率为67%～92%。各化合物的结构均经1H NMR、IR、元素分析和FAB MS证实。

Strain NX-2 which can produceγ-glutamyltranspeptidase was isolated from the soils and identified taxonomically as Bacillus subtilis.

从土壤中筛选分离到一株产γ谷氨酰转肽酶的菌株，经生理生化特性鉴定为枯草芽孢杆菌NX 2。

The study is to improve the producing efficacy of AR vaccine. Toxigenic Pasteurella multocida.(Pm 13-1) was cultured in the 15L BIOSTAT.C fermentor with experimental parameters (Time, Air Flow, Speed of stir, and pH).

为提高猪传染性萎缩性鼻炎疫苗生产效率，采用工作容积15立升的BIOSTAT·C型发酵罐，培养经鉴定作为制苗菌株的产毒素多杀巴氏杆菌Pm 13-1株。

Dixon transamination of oligopeptides and insulin results in the formation of a fluorescent derivative having emission maximum about 398-408nm with 0.02-0.03 quantum yield by the excitation at 3l2-333nm depending on the nature and length of the peptide.

短肽及胰岛素的N-末端经Dixpn转氨后具有荧光发色性质，其激发与发射波长随肽链氨基酸残基的种类和数量的不同而有差异，其范围大约为Ex 312—333nm；Em 398—408nm；量子产率为0.020—0.03。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。