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发布时间: 2022-05-22 11:48:43

❶ 2017年美国密歇根大学安娜堡分校排名是多少

你好。密歇根大学安娜堡分校2017USNews综合大学排名第27,被誉为名副其实的全美公立大学5强。作为美国的“学术重镇”,密歇根大学拥有全美最高的研究预算、浓厚的学术气氛、优良的师资以及顶尖的法学院、医学院、工学院、商学院及文理学院。美国国家研究委员会(NRC)对美国各大学研究生院41个学科的评估中,密歇根大学总分排名第三,多项调查显示密歇根大学超过70%的专业排在全美前10名。


学校热门专业:商科、法学、医学、工程学、文理学、建筑学、设计学、教育学。密歇根大学-安娜堡分校在各项学术排名中,是少数可以一直保持在前10名内的州立大学。



祝顺利~

❷ 可以获得oa期刊的途径主要有哪些英文的答案

  1. INFOMINE学术资源


(汇集大量供高校及研究人员使用的各学科、各种文献类型的internet资源)



2.ERIC教育资源信息中心


(世界上最大的教育资源数据库,部分资源可查找到全文)



3.Blackwell电子期刊


(国际性期刊800余种,涵盖十多个学科,部分期刊提供全文)



4.加拿大AMICUS学位论文


(收录加拿大1300多个图书馆的学位论文信息)



5.澳洲数字论文计划


(包含澳洲40余所大学的15440篇硕博论文,涵盖各个学科)




6.北卡罗来纳州州立大学


(3937篇免费博硕论文,涵盖化学、物理学、电子电器、核能、机械、材料、食品、林业、土壤等学科)



7.宾夕法尼亚州大学电子论文库


(1848篇全文,涵盖材料学、教育学、工学、法学、医学、航空、经济、化工、建筑等各个学科,免费获取)



8.伍斯特工学院数据库


(670余篇学位论文,其中有550多篇全文。涵盖生物、电子、计算机、材料、物理、机械等学科)



9.俄亥俄州立大学电子学位论文


(含12677条记录,索引更新及时,可在线翻译成中文。涵盖机械、电子、管理、哲学、化学、环境学、材料、数学、物理等学科)


10.美国密西根大学论文库


(2万多篇期刊论文、技术报告、评论等文献全文)


11.开放存取资源图书馆


(提供400多万篇免费使用下载的英文期刊论文,涵盖所有学科)



12.Bioline International


(提供发展中国家出版的高质量期刊)



13.HINARI


(世界卫生组织建立,提供生物学与卫生文献的项目,包括3280种期刊)



14.HighWire出版社电子期刊


(美国斯坦福大学着名的学术出版商,已收录电子期刊1176多种,其中将近240万篇文章可免费获得全文)



15.美国科学院院报


(世界上被引用此书最多的综合学科刊物之一,继Nature、Science之后,在SCI综合学科类排名第三位)



16.科研出版社OA资源


(共有180多种期刊的电子版本,文章超多1万篇)



17.加拿大国家研究委员会(NRC)OA期刊


(农业科学、生物信息学、生命科学、环境、纳米技术、分子科学、光电子科学等领域的学术性期刊)



18.Socolar


(整理了世界上重要的OA期刊1万多种和1000多种的OA仓贮资源)



19.加利福尼亚大学国际和区域数字馆藏


(已出版的期刊论文、未出版的研究手稿、会议文献以及其他连接出版物上的1万多篇,均可免费阅读)



20.剑桥大学机构知识库


(提供剑桥大学相关的期刊、学术论文、学位论文等电子资源)



21.CERN Document Server


(主要覆盖物理学及相关学科,提供36万多篇全文文献)



22.康内尔大学ArXiv


(面向物理学、数学、非线性科学、计算机科学和定量生物学等学科提供16种免费电子期刊的访问



23.Energy Citations Database


(提供美国能源部的科技信息摘要)



24.PMC(PubMed Centeral)


(美国国家生物技术信息中心建立的数字化生命科学期刊文献集,现提供50余种生物医学期刊免费全文)



25.Social Science Research Network


(社会科学(经济类)研究论文数据库,部分提供全文)



26.Directory of Open Access Journals


(可检索的期刊有2000种,其中497种提供免费全文84044篇)



27.世界数字图书馆


(以多种形式免费提供源于世界各地各文化的重要原始材料)



28.Manybooks


(国外大量免费电子图书,可下载)



网络不让贴链接,建议你搜一下 论文必备!全球免费电子图书馆名单 就可以找到链接了。

❸ vb中的错误提示BOF 或 EOF 中有一个是“真”,或者当前的记录已被删除,所需的操作要求一个当前的记录

程序不错,但问题是:你没有取到相应的记录.也就是说你的记录集为空时进行了更新操作.

你的选中字段是否在数据库中存入了那个对号呢?当然不是!

所以你取出的结果集是空集的,对空集进行更新显然不行.

表格MSHFlexGrid1中有选中,但这个不能做为SQL的关键词的.
rs.Open "select * from NRC饲料数据库B where .."以何种条件打开的,再以何种条件去取,或者干脆打开所有的.
然后去对比关键词与是否选中的.才进行更新的!否则是不会进行更新,这样就可以了!

❹ 上网的绿色上网

绿色上网业务是采用先进的技术,结合高效的网站安全过滤引擎,在安全稳定的前提下向用户提供过滤非法网站的服务,为青少年提供一片洁净的互联网天空。它无需在用户端做任何修改、设置或安装软件,而是在电信骨干网上对有害网站作出根本性的拦截,自动过滤网上众多色情、暴力以及其它不健康内容,屏蔽全球色情、赌博、毒品和邪教等不良网站,其系统的数据库还将每天更新,自动搜索并屏蔽新增加的不健康网站。
对一般家庭用户而言,绿色上网业务的内容控制功能为家长提供了有效手段,保证青少年不接触不良网络信息。
中国电信为什么要推出绿色上网业务?
互联网的发展极大地促进了信息的交流和沟通,人们可以在网上找到各种各样形形色色的信息,这些内容无所不包,无所不含,这当中也充斥着不少不良信息。仅拿网络色情这一项看,据Google,WordTracker,公共广播公司,MSNBC,NRC和亚历克萨等的研究,2003年色情业的统计,全世界约有色情网站420万含色情网页3.72亿页(占总网页数的12%)。同时第十三次CNNIC调查结果显示,网民中18-24岁的年轻人所占比例最高,达到34.1%,其次是18岁以下的网民(18.8%)和25-30岁的网民(17.2%),网民在结构上仍然呈现低龄化。应此如何防范青少年接触不良互联网内容已经成为社会的关注焦点。
信息产业部副部长奚国华,就信息产业领域贯彻《中共中央国务院关于进一步加强和改进未成年人思想道德建设的若干意见》(以下简称《意见》)接受专访时指出:“未成年人是祖国未来的建设者,在各类网络信息对未成年人世界观的影响与日俱增的现实环境中,应认识到网络开放性与管理滞后性带来的工作难点,既要从法律、行政、经济、行业自律等各方面规范网络服务行为,又要积极配合相关部门做好网络的内容建设,为广大未成年人提供内容健康、形式生动、具有吸引力的网络内容 。”“充分运用现代信息技术是关键所在。”
正是在这样的背景下,中国电信利用自身的技术和网络优势,在各地逐步推出了绿色上网业务。中国电信的宽带网络用户已经达到一千万,作为国内最大的宽带互网接入服务提供商。中国电信有责任有义务为社会提供健康的上网手段和方法。我们愿意与政府、社会团体如各级妇联和青少年保护组织、教育机构等开展深入合作,共同推广中国电信绿色上网业务,引导我国青少年正确利用好互联网这一信息工具。 1.互联网有害信息过滤功能:
绿色上网可以自动拦截、屏蔽互联网内的不良信息,如黄色、赌博、暴力、毒品、邪教、自杀等网站,为用户创造一个绿色健康、安全洁净的网络环境。
2.上网时间管理功能:
用户可自行设定允许绿色上网帐号上网的时间和时长,如在已设定为限制上网的时间内上网绿色上网系统将自动中止用户与互联网的连接。
3.访问网站统计查询功能:
用户可自行查询一周时间内绿色上网帐号访问有害网站的历史记录,可详细列表显示用户所访问过的网址、浏览的时间及网站是否有害等信息。
4.在线杀毒功能:
彻底清除危害计算机和网络的计算机病毒、恶意代码。

❺ nrcapp运动轨迹怎么生成卡片

根据记录右击生成。
根据统计时间参数从所述运动轨迹数据库中获取用户id、所述多个位置信息、所述运动状态信息和所述日期信息,根据所述日期信息对所述多个位置信息进行处理,得到运动轨迹数据。
本发明的目的是针对现有技术的缺陷,提供一种运动轨迹生成方法,通过终端自身的配置和当前的耗电量,以动态频率获取用户的运动数据,使得终端维持良好的运行状态,而不会因为频繁获取数据给终端带来运行负担。并且,本方法可以为用户展现预定时间内的运动状况,满足用户对查看运动状况个性化的需要。

❻ acta phys.chim.sin.是哪个数据库

在查文献的时候,经常会发现找不到期刊属于哪个数据库.为了方便大家查阅文献,现发个有用的东东
Accounts of Chemical Research 1968- (ACS)
Accreditation and Quality Assurance :Journal for Quality, Comparability and Reliability in Chemical Measurement 1996- (Springer)
Acta Chimica Slovenica 1998-
Acta Crystallographica Section A 2000- (Blackwell)
Acta Crystallographica Section B 2004- (Blackwell)
Acta Crystallographica Section C 2000- (Blackwell)
Acta Crystallographica Section D 2000- (Blackwell)
Acta Crystallographica Section E 2001- (Blackwell)
Acta Crystallographica Section F 2005- (Blackwell)
Acta Materialia 1997- (Elsevier)
Additives for Polymers 1997- (Elsevier)
Adsorption 1998- (Springer-Kluwer)
Advanced Drug Delivery Reviews 1997- (Elsevier)
Advanced Functional Materials 2001- (Wiley)
Advanced Materials 1996- (Wiley)
Advanced Synthesis & Catalysis 2001- (Wiley)
(Formerly: Journal für Praktische Chemie 1999-2000)
Advances in Biochemical Engineering/Biotechnology 1998- (Springer)
Advances in Colloid and Interface Science 1995- (Elsevier)
Advances in Environmental Research 1997- (Elsevier)
Advances in Polymer Science 1997- (Springer)
Advances in Polymer Technology 1996- (Wiley)
Aldrichimica Acta 1997-
Amino Acids 2000- (Springer)
The Analyst 1997- (RSC)
The Analyst 1876-1997
Analytical Biochemistry 1997- (Elsevier)
Analytica Chimica Acta 1995- (Elsevier)
Analytical Abstracts 1980- (RSC)
Analytical and Bioanalytical Chemistry 2002- (Springer)
(formerly Fresenius' Journal of Analytical Chemistry)
Analytical Chemistry (Washington, D.C.) 1947- (ACS)
I&EC Analytical Edition (1929-1946)
Analytical Communications 1997-1999 (RSC)
Analytical Communications 1996-1997
Analytical Proceedings including Analytical Communications 1994-1995 (RSC)
Analytical Proceedings 1980-1993 (RSC)
Angewandte Chemie International Edition 1998- (Wiley)
Angewandte Chemie International Edition in English 1962 - 1997 (Wiley)
Annual Reports on Analytical Atomic Spectros 1971-1984 (RSC)
Annual Reports on the Progress of Chemistry 1904-1966 (RSC)
Annual Reports on the Progress of Chemistry, Section A, Inorganic Chemistry
1997- (RSC)
Annual Reports on the Progress of Chemistry, Section A, Inorganic Chemistry
1979-1997
Annual Reports on the Progress of Chemistry, Section A, Physical and Inorganic
Chemistry 1973-1978 (RSC)
Annual Reports on the Progress of Chemistry, Section A, General Physical and
Inorganic Chemistry 1967-1972 (RSC)
Annual Reports on the Progress of Chemistry, Section B, Organic Chemistry 1997-
(RSC)
Annual Reports on the Progress of Chemistry, Section B, Organic Chemistry
1967-1997
Annual Reports on the Progress of Chemistry, Section C, Physical Chemistry 1997-
(RSC)
Annual Reports on the Progress of Chemistry, Section C, Physical Chemistry
1979-1997
Annual Review of Materials Research 1984-
Antiviral Research 1997- (Elsevier)
Applied Biomaterials 1996- (Wiley)
Applied Catalysis A: General 1997- (Elsevier)
Applied Catalysis B: Environmental 1997- (Elsevier)
Applied Clay Science 1997- (Elsevier)
Applied Composite Materials 1997- (Springer-Kluwer)
Applied Mathematics and Optimization 1996- (Springer)
Applied Microbiology and Biotechnology 1995- (Springer)
Applied Organometallic Chemistry 1996- (Wiley)
Applied Physics A: Materials Science & Processing 1995- (Springer)
Applied Physics B: Lasers and Optics 1996- (Springer)
Applied Surface Science 1995- (Elsevier)
Archives of Biochemistry and Biophysics 1997- (Elsevier)
Archive for History of Exact Sciences 1998- (Springer)
Archives of Environmental Contamination and Toxicology 2000- (Springer)
Archives of Insect Biochemistry and Physiology 1996- (Wiley)
Australian Journal of Chemistry 1997-

B:
Biochemical and Biophysical Research Communications 1997- (Elsevier)
Biochemical Engineering Journal 1997- (Elsevier)
Biochemical Pharmacology 1997- (Elsevier)
Biochemical Systematics and Ecology 1997- (Elsevier)
Biochemistry 1962- (ACS)
Biochemistry (Moscow) 2000- (Springer-Kluwer)
Biochemistry and Cell Biology 2001- (NRC)
Biochimica et Biophysica Acta (BBA) - Proteins & Proteomics 1997- (Elsevier)
Biochimica et Biophysica Acta (BBA) - Bioenergetics 1997- (Elsevier)
Biochimica et Biophysica Acta (BBA) - Biomembranes 1997- (Elsevier)
Biochimica et Biophysica Acta (BBA) - Enzymology and Biological Oxidation 1997-
(Elsevier)
Biochimica et Biophysica Acta (BBA) - Gene Structure and Expression 1997-
(Elsevier)
Biochimica et Biophysica Acta (BBA) - General Subjects 1997- (Elsevier)
Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids 1997-
(Elsevier)
Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease 1997-
(Elsevier)
Biochimica et Biophysica Acta (BBA) - Molecular Cell Research 1997- (Elsevier)
Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology
1997- (Elsevier)
Biochimica et Biophysica Acta (BBA) - Reviews on Bioenergetics 1997-
(Elsevier)
Biochimica et Biophysica Acta (BBA) - Reviews on Cancer 1997- (Elsevier)
Biochimica et Biophysica Acta (BBA) - Specialized Section on Enzymological
Subjects 1997- (Elsevier)
Biochimie 1997- (Elsevier)
Bioconjugate Chemistry 1990- (ACS)
Bioelectrochemistry 2000- (Elsevier)
Bioelectrochemistry and Bioenergetics 1995-1999 (Elsevier)
Biological & Pharmaceutical Bulletin 1999-
Biomacromolecules 2000- (ACS)
Biomaterials 1997- (Elsevier)
BioMetals 1997- (Springer-Kluwer)
Biomedical Chromatography 1997- (Wiley)
Bioorganic Chemistry 1995- (Elsevier)
Bioorganic & Medicinal Chemistry 1995- (Elsevier)
Bioorganic & Medicinal Chemistry Letters 1995- (Elsevier)
Biophysical Chemistry 1995- (Elsevier)
Biopolymers 1996- (Wiley)
Bioprocess and Biosystems Engineering 1996- (Springer)
Bioscience Biotechnology and Biochemistry
Biosensors and Bioelectronics 1995- (Elsevier)
Biotechnology Advances 1997- (Elsevier)
Biotechnology and Bioengineering 1996- (Wiley)
Biotechnology Letters 1997- (Springer-Kluwer)
Biotechnology Progress 1990- (ACS)
Biotechnology Techniques 1997-1999 (Springer)
Bulgarian Chemical Communications
Bulletin of the Chemical Society of Japan 1995-
Bulletin of Environmental Contamination and Toxicology 2001- (Springer)
Bulletin of the Polish Academy of Science, Chemistry

C:
Canadian Journal of Chemistry 2001- (NRC)
Carbohydrate Research 1995- (Elsevier)
Catalysis Communications 1997- (Elsevier)
Catalysis Letters 1997- (Springer-Kluwer)
Catalysis Surveys from Asia 1997- (Springer-Kluwer)
Catalysis Today 1997- (Elsevier)
Catalysts & Catalysed Reactions (RSC)
CATTECH 2000-2003 (Springer)
Cell and Tissue Banking 2000- (Springer)
Cellulose 1997- (Springer-Kluwer)
Cellulose Chemistry and Technology
Central European Journal of Chemistry 2003- (CESJ)
ChemBioChem 2000- (Wiley)
Chemical Biology Virtual Journal 2002- (RSC)
Chemical Communications 1997- (RSC)
Chemical Communications 1996-1997
Chemical Communications (London) 1965-1968 (RSC)
The Chemical Ecator 1997- (Springer)
Chemical & Engineering News 1998- (ACS)
Chemical Engineering Science 1997- (Elsevier)
Chemical Engineering & Technology 1998- (Wiley)
Chemical Hazards in Instry 1981- (RSC)
Chemical Health and Safety 1995- (Elsevier)
Chemical Market Report 1996-
Chemical and Petroleum Engineering 2000- (Springer)
Chemical & Pharmaceutical Bulletin 1999-
Chemical Physics 1995- (Elsevier)
Chemical Physics Letters 1995- (Elsevier)
The Chemical Record 2001- (Wiley)
Chemical Research in Chinese Universities
Chemical Research in Toxicology 1988- (ACS)
Chemical Reviews 1924- (ACS)
Chemical Science 2004- (RSC)
Chemical Society Reviews 1998- (RSC)
Chemical Society Reviews 1972-1997
Chemie in unserer Zeit 2000- (Wiley)
Chemistry - A European Journal 1998- (Wiley)
Chemistry & Biodiversity 2004- (Wiley)
Chemistry & Biology 1995- (Elsevier)
Chemistry in Britain 2000-2003 (RSC)
Chemistry of Heterocyclic Compounds 2000- (Springer-Kluwer)
Chemistry & Instry
Chemistry International 1997-
Chemistry Letters 1997-
Chemistry of Materials 1989- (ACS)
Chemistry of Natural Compounds 2000- (Springer-Kluwer)
Chemistry and Physics of Lipids 1997- (Elsevier)
Chemistry and Technology of Fuels and Oils 2000- (Springer-Kluwer)
Chemistry World 2004- (RSC)
Chemometrics and Intelligent Laboratory Systems 1998- (Elsevier)
Chemosphere 1997- (Elsevier)
ChemPhysChem 2000- (Wiley)

❼ acta,part b在哪个数据库

在查文献的时候,经常会发现找不到期刊属于哪个数据库.为了方便大家查阅文献,现发个有用的东东
Accounts of Chemical Research 1968- (ACS)
Accreditation and Quality Assurance :Journal for Quality, Comparability and Reliability in Chemical Measurement 1996- (Springer)
Acta Chimica Slovenica 1998-
Acta Crystallographica Section A 2000- (Blackwell)
Acta Crystallographica Section B 2004- (Blackwell)
Acta Crystallographica Section C 2000- (Blackwell)
Acta Crystallographica Section D 2000- (Blackwell)
Acta Crystallographica Section E 2001- (Blackwell)
Acta Crystallographica Section F 2005- (Blackwell)
Acta Materialia 1997- (Elsevier)
Additives for Polymers 1997- (Elsevier)
Adsorption 1998- (Springer-Kluwer)
Advanced Drug Delivery Reviews 1997- (Elsevier)
Advanced Functional Materials 2001- (Wiley)
Advanced Materials 1996- (Wiley)
Advanced Synthesis & Catalysis 2001- (Wiley)
(Formerly: Journal für Praktische Chemie 1999-2000)
Advances in Biochemical Engineering/Biotechnology 1998- (Springer)
Advances in Colloid and Interface Science 1995- (Elsevier)
Advances in Environmental Research 1997- (Elsevier)
Advances in Polymer Science 1997- (Springer)
Advances in Polymer Technology 1996- (Wiley)
Aldrichimica Acta 1997-
Amino Acids 2000- (Springer)
The Analyst 1997- (RSC)
The Analyst 1876-1997
Analytical Biochemistry 1997- (Elsevier)
Analytica Chimica Acta 1995- (Elsevier)
Analytical Abstracts 1980- (RSC)
Analytical and Bioanalytical Chemistry 2002- (Springer)
(formerly Fresenius' Journal of Analytical Chemistry)
Analytical Chemistry (Washington, D.C.) 1947- (ACS)
I&EC Analytical Edition (1929-1946)
Analytical Communications 1997-1999 (RSC)
Analytical Communications 1996-1997
Analytical Proceedings including Analytical Communications 1994-1995 (RSC)
Analytical Proceedings 1980-1993 (RSC)
Angewandte Chemie International Edition 1998- (Wiley)
Angewandte Chemie International Edition in English 1962 - 1997 (Wiley)
Annual Reports on Analytical Atomic Spectros 1971-1984 (RSC)
Annual Reports on the Progress of Chemistry 1904-1966 (RSC)
Annual Reports on the Progress of Chemistry, Section A, Inorganic Chemistry
1997- (RSC)
Annual Reports on the Progress of Chemistry, Section A, Inorganic Chemistry
1979-1997
Annual Reports on the Progress of Chemistry, Section A, Physical and Inorganic
Chemistry 1973-1978 (RSC)
Annual Reports on the Progress of Chemistry, Section A, General Physical and
Inorganic Chemistry 1967-1972 (RSC)
Annual Reports on the Progress of Chemistry, Section B, Organic Chemistry 1997-
(RSC)
Annual Reports on the Progress of Chemistry, Section B, Organic Chemistry
1967-1997
Annual Reports on the Progress of Chemistry, Section C, Physical Chemistry 1997-
(RSC)
Annual Reports on the Progress of Chemistry, Section C, Physical Chemistry
1979-1997
Annual Review of Materials Research 1984-
Antiviral Research 1997- (Elsevier)
Applied Biomaterials 1996- (Wiley)
Applied Catalysis A: General 1997- (Elsevier)
Applied Catalysis B: Environmental 1997- (Elsevier)
Applied Clay Science 1997- (Elsevier)
Applied Composite Materials 1997- (Springer-Kluwer)
Applied Mathematics and Optimization 1996- (Springer)
Applied Microbiology and Biotechnology 1995- (Springer)
Applied Organometallic Chemistry 1996- (Wiley)
Applied Physics A: Materials Science & Processing 1995- (Springer)
Applied Physics B: Lasers and Optics 1996- (Springer)
Applied Surface Science 1995- (Elsevier)
Archives of Biochemistry and Biophysics 1997- (Elsevier)
Archive for History of Exact Sciences 1998- (Springer)
Archives of Environmental Contamination and Toxicology 2000- (Springer)
Archives of Insect Biochemistry and Physiology 1996- (Wiley)
Australian Journal of Chemistry 1997-

B:
Biochemical and Biophysical Research Communications 1997- (Elsevier)
Biochemical Engineering Journal 1997- (Elsevier)
Biochemical Pharmacology 1997- (Elsevier)
Biochemical Systematics and Ecology 1997- (Elsevier)
Biochemistry 1962- (ACS)
Biochemistry (Moscow) 2000- (Springer-Kluwer)
Biochemistry and Cell Biology 2001- (NRC)
Biochimica et Biophysica Acta (BBA) - Proteins & Proteomics 1997- (Elsevier)
Biochimica et Biophysica Acta (BBA) - Bioenergetics 1997- (Elsevier)
Biochimica et Biophysica Acta (BBA) - Biomembranes 1997- (Elsevier)
Biochimica et Biophysica Acta (BBA) - Enzymology and Biological Oxidation 1997-
(Elsevier)
Biochimica et Biophysica Acta (BBA) - Gene Structure and Expression 1997-
(Elsevier)
Biochimica et Biophysica Acta (BBA) - General Subjects 1997- (Elsevier)
Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids 1997-
(Elsevier)
Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease 1997-
(Elsevier)
Biochimica et Biophysica Acta (BBA) - Molecular Cell Research 1997- (Elsevier)
Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology
1997- (Elsevier)
Biochimica et Biophysica Acta (BBA) - Reviews on Bioenergetics 1997-
(Elsevier)
Biochimica et Biophysica Acta (BBA) - Reviews on Cancer 1997- (Elsevier)
Biochimica et Biophysica Acta (BBA) - Specialized Section on Enzymological
Subjects 1997- (Elsevier)
Biochimie 1997- (Elsevier)
Bioconjugate Chemistry 1990- (ACS)
Bioelectrochemistry 2000- (Elsevier)
Bioelectrochemistry and Bioenergetics 1995-1999 (Elsevier)
Biological & Pharmaceutical Bulletin 1999-
Biomacromolecules 2000- (ACS)
Biomaterials 1997- (Elsevier)
BioMetals 1997- (Springer-Kluwer)
Biomedical Chromatography 1997- (Wiley)
Bioorganic Chemistry 1995- (Elsevier)
Bioorganic & Medicinal Chemistry 1995- (Elsevier)
Bioorganic & Medicinal Chemistry Letters 1995- (Elsevier)
Biophysical Chemistry 1995- (Elsevier)
Biopolymers 1996- (Wiley)
Bioprocess and Biosystems Engineering 1996- (Springer)
Bioscience Biotechnology and Biochemistry
Biosensors and Bioelectronics 1995- (Elsevier)
Biotechnology Advances 1997- (Elsevier)
Biotechnology and Bioengineering 1996- (Wiley)
Biotechnology Letters 1997- (Springer-Kluwer)
Biotechnology Progress 1990- (ACS)
Biotechnology Techniques 1997-1999 (Springer)
Bulgarian Chemical Communications
Bulletin of the Chemical Society of Japan 1995-
Bulletin of Environmental Contamination and Toxicology 2001- (Springer)
Bulletin of the Polish Academy of Science, Chemistry

C:
Canadian Journal of Chemistry 2001- (NRC)
Carbohydrate Research 1995- (Elsevier)
Catalysis Communications 1997- (Elsevier)
Catalysis Letters 1997- (Springer-Kluwer)
Catalysis Surveys from Asia 1997- (Springer-Kluwer)
Catalysis Today 1997- (Elsevier)
Catalysts & Catalysed Reactions (RSC)
CATTECH 2000-2003 (Springer)
Cell and Tissue Banking 2000- (Springer)
Cellulose 1997- (Springer-Kluwer)
Cellulose Chemistry and Technology
Central European Journal of Chemistry 2003- (CESJ)
ChemBioChem 2000- (Wiley)
Chemical Biology Virtual Journal 2002- (RSC)
Chemical Communications 1997- (RSC)
Chemical Communications 1996-1997
Chemical Communications (London) 1965-1968 (RSC)
The Chemical Ecator 1997- (Springer)
Chemical & Engineering News 1998- (ACS)
Chemical Engineering Science 1997- (Elsevier)
Chemical Engineering & Technology 1998- (Wiley)
Chemical Hazards in Instry 1981- (RSC)
Chemical Health and Safety 1995- (Elsevier)
Chemical Market Report 1996-
Chemical and Petroleum Engineering 2000- (Springer)
Chemical & Pharmaceutical Bulletin 1999-
Chemical Physics 1995- (Elsevier)
Chemical Physics Letters 1995- (Elsevier)
The Chemical Record 2001- (Wiley)
Chemical Research in Chinese Universities
Chemical Research in Toxicology 1988- (ACS)
Chemical Reviews 1924- (ACS)
Chemical Science 2004- (RSC)
Chemical Society Reviews 1998- (RSC)
Chemical Society Reviews 1972-1997
Chemie in unserer Zeit 2000- (Wiley)
Chemistry - A European Journal 1998- (Wiley)
Chemistry & Biodiversity 2004- (Wiley)
Chemistry & Biology 1995- (Elsevier)
Chemistry in Britain 2000-2003 (RSC)
Chemistry of Heterocyclic Compounds 2000- (Springer-Kluwer)
Chemistry & Instry
Chemistry International 1997-
Chemistry Letters 1997-
Chemistry of Materials 1989- (ACS)
Chemistry of Natural Compounds 2000- (Springer-Kluwer)
Chemistry and Physics of Lipids 1997- (Elsevier)
Chemistry and Technology of Fuels and Oils 2000- (Springer-Kluwer)
Chemistry World 2004- (RSC)
Chemometrics and Intelligent Laboratory Systems 1998- (Elsevier)
Chemosphere 1997- (Elsevier)
ChemPhysChem 2000- (Wiley)
转载

❽ flex3与数据库的交互

TCP/IP属性配置
配置IP地址等
建立设备别名
Web服务配置
启动Web服务
(默认目录DocumentRoot)
配置虚拟主机服务
ftp服务配置
启动Ftp服务
权限的配置
1、TCP/IP属性配置
打开终端输入:redhat-config-network命令,跳出网络设置的对话框,选择新建选项后选择建立以太网连接,可以得到以下的对话框:

完成以上设置后就完成了Linux系统下的虚拟地址的设置,建立完成后只要把该网络连接激活就可以了。
2、Web服务配置
(1) 在服务器设置中打开服务选项,找到服务httpd,默认情况下该服务处于停止状态,右击选择重启服务,完成后通过访问网页来验证服务是否打开,若打开成功则可以进行网页的访问。
(2)修改主页操作
打开位于/etc/httpd/conf/下的文件httpd.conf,在里面我们可以找到主页所在的文件夹目录,如果我们要修改网页的本地主页,则我们可以把自己想要的网页放在该文件夹下,而如果要放在其他地方,则要修改该地址为主页所在文件夹。
同时主页的默认名字为index.html,把我们要设置的网页另存为这个名字就可以了,如果要以其他名字命名,则要对httpd.conf中的index名字进行相应的操作以使其同自己设置的网页同名。
3、Ftp服务配置
(1) 在服务器设置中打开服务选项,找到服务vsftpd,默认情况下该服务也是处于停止状态,右击选择重启服务,完成后可以通过访问本机FTP来进行验证,访问:ftp://localhost或ftp://127.0.0.1,如果服务开启成功的话就可以访问到该FTP,其默认的本地路径为var/ftp/pub,在网页上,我们可以看到ftp下的所有文件信息。
(2)打开etc/vsftpd/vsftpd.conf,这个文件里面包括了对FTP权限的设置,我们可以根据自己的需求来设置FTP的权限
Mac地址获取
使用NCB和Netbios命令获得Mac地址
NCB :Network Control Block
是一个用来存放命令结构体, Netbios函数的参数就是NCB结构体指针。
使用NCB和Netbios时要包含头文件
#include <windows.h>
#include <Nb30.h>
要在 工程—>设置—>链接,对象/库模块中加入netapi32.lib
获取Mac的步骤:
1.声明变量并初始化:
char mac[200]; //用来存放MAC地址
NCB ncb; //存放命令
ADAPTER_STATUS Adapter; // 定义一个存放返回网卡信息的变量
LANA_ENUM lana_enum; //定义可用的网卡
UCHAR uRetCode; // Netbios命令的返回值
memset(&ncb, 0, sizeof(ncb));
memset(&lana_enum, 0, sizeof(lana_enum)); //初始化
2.发送枚举网卡个数的命令以获得网卡的个数
ncb.ncb_command = NCBENUM; // NCBENUM为枚举网卡命令
ncb.ncb_buffer = (unsigned char *)&lana_enum; //可用的网卡存储在lana_enum中
ncb.ncb_length = sizeof(LANA_ENUM);
uRetCode = Netbios(&ncb); //发送Netbios命令
3.将存储在LANA_ENUM变量中的网卡赋值给NCB,并对选定的网卡发送一个NCBRESET命令,以便进行初始化
// 对每一张网卡,以其网卡编号为输入编号,获取其MAC地址
for(int lana=0; lana<lana_enum.length; lana++) {
ncb.ncb_command = NCBRESET; // 对选定的网卡发送一个NCBRESET命令,以便进行初始化
ncb.ncb_lana_num = lana_enum.lana[0]; // 指定网卡号
uRetCode = Netbios(&ncb);
if(uRetCode == NRC_GOODRET) //找到一个可用的网卡跳出循环
break;
}
4.发送获得网卡状态的命令
memset(&ncb, 0, sizeof(ncb));
ncb.ncb_command = NCBASTAT; //获得网卡状态的命令
ncb.ncb_lana_num = lana_enum.lana[0];
strcpy((char*)ncb.ncb_callname, "*");
ncb.ncb_buffer = (unsigned char *)&Adapter;//将网卡的信息赋值给ADAPTER_STATUS变量
ncb.ncb_length = sizeof(Adapter);
uRetCode = Netbios(&ncb);
显示mac地址:
sprintf(mac,"%02X-%02X-%02X-%02X-%02X-%02X",
Adapter.adapter_address[0],
Adapter.adapter_address[1],
Adapter.adapter_address[2],
Adapter.adapter_address[3],
Adapter.adapter_address[4],
Adapter.adapter_address[5]
);
printf("mac:%s\n",mac);

❾ 如何建立饲料原料数据库

粗蛋白、粗脂肪、粗纤维、无氮浸出物、钙磷、这些可自测,能量、氨基酸、维生素、矿物质、可消化氨基酸这些可参考中国饲料原料数据库和NRC数据库。
建立起自己的数据库,越全面越准确越好,这是作为配方师所必备的,否则一切都是空谈啊。

❿ 关于数据库的问题

我知道了。

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