>>> 哲学 经济学 法学 教育学 文学 历史学 理学 工学 农学 医学 军事学 管理学 旅游学 文化学 特色库
搜索结果: 1-15 共查到APA相关记录20条 . 查询时间(0.095 秒)
据油价网2024年1月4日报道,美国APA公司和Callon公司已于当日签订最终收购协议。根据该协议,APA将以价值约45亿美元的全股票交易形式收购Callon(包括Callon的净债务)。
在 “共建亚太血管医学平台,推动亚太地区血管医学发展” 宗旨的指导下,亚太血管学术联盟(APA)于2016 年6 月25 日成立。APA 成立后成功举办两届亚太血管学术联盟学术会议,并得到中国微循环学会以及亚太血管医学界朋友的支持,提高了APA 的社会声誉。为了履行促进地区学术交流、加强学科沟通合作的职责,大会组委会于2017 年5 月26-28 日在澳门举行“亚太血管学术联盟(APA)大会暨澳门...
The task force was funded to have one meeting, which took place in San Diego, CA, January 13- 16, 2005. The work at this meeting was preceded and followed by a number of structured assignments, which ...
The business of the Australian Population Association is coordinated by the APA Council. Members of the Council hold office for two years, with elections held during an Annual General Meeting that is ...
GENERAL INFORMATION Important dates National Organizing Commitee Scientific Committee of the conference Coordinator
American Photographic Artists (APA) is a 501(c)(6) not-for-profit association for professional photographers.The American Photographic Artists is a leading national organization run by and for profess...
For over seventy years, APA-The Engineered Wood Association has focused on helping the industry create structural wood products of exceptional strength, versatility and reliability. Combining the rese...
The American Psychological Association is the largest scientific and professional organization representing psychology in the United States. APA is the world's largest association of psychologists, wi...
The Audio Publishers Association (APA) is a not-for-profit trade association that advocates the common, collective business interests of audio publishers. The APA consists of audio publishing companie...
The study was aimed at determining women farmers’ agricultural information needs and accessibility, using Apa local government area of Benue State as a case study. A sample size of 70 women farmers wa...
Production of 6-aminopenicillanic acid (6-APA) by hydrolysis using penicillin acylase (PA) was studied as a model of an enzymatic emulsion liquid membrane (ELM) process. The loss of PA activity was ex...
ALA-APA进行改组以节约开支     ALA-APA  改组       2009/1/19
The ALA-APA (American Library Association-Allied Professional Association), faced with costs outpacing revenue, has been restructured by moving more of APA Director Jenifer Grady’s time to ALA activit...
6-APA是生产合成青霉素的重要中间体,由于半合成青霉素需求量的不断增大和青霉素工业盐价格的不断下跌,将青霉素向下游转化势在必行,目前国内生产6-APA大都使用进口酶,价格昂贵,近年来国产固定化青霉素酰化酶的作用技术有了很大提高,该单位对国产固定化青霉素酰化酶裂解青霉素制备6-APA的反应进行了小试研究,得到如下结果:1、在确定的反应条件下,按工业青霉素G钾盐100%计算,可得6-APA的收率93...
6-APA生产新工艺     青霉素中间体  合成  生产工艺       2008/12/5
6-APA是青霉素进行深加工生产广谱半合成青霉素的重要中间体。该项目直接以青霉素发酵液的提取液为原料,采用了缓冲剂、吸附剂、萃取剂和助晶剂,较好地解决了由溶媒提取液直接生产6-APA的纯化、结晶等关键问题,提高了产品的收率,降低了生产成本。该成果达国际先进水平。
中科院大连化学物理所与上海药物所合作,在国际上首次利用膜生物反应器固定化富含青霉素酰化酶的基因工程菌生产6-APA。从整体路线看,技术经济指标先进,流程合 理,操作简便,所需设备和基建投资少,成本较低,无毒物排放,易实现工业化。为形成生产能力,该项目需设置发酵、裂解、结晶、干燥、苯乙酸和醋酸丁酯回收等工段。排放废物为盐、水及少量乙酵,无需污水处理系统。按年产50吨6-APA计,约需1500-200...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...