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1)  information journal
资讯类期刊
1.
Under the circumstance of diversified reading, great effort has to be spent in increasing "compensating guarantee" and reducing "energy cost" in order to increase readers probability to choose information journals.
在多元化阅读的背景下,要提高读者选择资讯类期刊的或然率,必须在提高"报偿的保证"和降低"费力的程度"上下功夫。
2)  information service weekly
资讯服务类周刊
1.
Taking "Shanghai Times", a model of information service weekly in Shanghai, as a cut-in point, this thesis sorted out the background and situation of this kind of weekly and its features, and analyzed the operation characteristics of "Shanghai Times" in content, pattern and other aspects.
本文以上海资讯服务类周刊的代表《申江服务导报》作为切入点,对此类周刊的发展背景、发展状况及其当下特点进行了梳理,着重分析了《申》报在内容、形式等多方面呈现出的新的办报特色。
3)  Foreign magazines on finance and economics
外资财经类期刊
4)  periodical resources
期刊资源
1.
How to Realize the Navigation of Periodical Resources Based on TRS System;
基于TRS系统实现期刊资源导航
2.
Integration and management of the periodical resources in the amalgamated libraries;
论高校合并馆期刊资源的整合与管理
3.
Considerations of Strengthening Periodical Resources Construction Under the Network Environment;
网络环境下加强高校图书馆期刊资源建设的思考
5)  periodical resource
期刊资源
1.
The development of library periodical resource;
新时期图书馆期刊资源的调配
2.
This paper expounds the preparing work and management tactics of multi-campus periodical resource integration under the network environment, and probes into some paths for developing the characteristic periodical resource service.
论述了网络环境下多校区期刊资源整合的准备工作和管理策略,探讨了发展特色期刊资源服务之路。
3.
In the light of the present situation of traditional periodical service in library, this paper advances the countermeasures for the periodical resource service in university library under the network environment.
针对传统图书馆期刊服务的现状,提出了网络环境下高校图书馆期刊资源服务的对策。
6)  periodical classification
期刊分类
1.
This paper has elaborated frequently met issues-category alternation and matches in periodical classification work.
阐述了在期刊分类中经常遇到的问题——类目交替和组配。
2.
As in the management of periodicals,the incorporation of periodical classification and cataloguing will have profound impacts on the concentration or distribution of periodical registration,and the integration of periodical shelving.
本文以北京工商大学图书馆为例,阐述了合并院校图书馆在期刊分类工作中存在的主要问题,提出了一些解决问题的办法。
补充资料:C24类甾醇类
分子式:
CAS号:

性质:胆汁酸属于类甾(或固)醇类,又称为C24类甾醇类。正常人胆汁中有结合胆汁酸和游离胆汁酸两大类,并以前者为主。游离胆汁酸有胆酸、脱氧胆酸和鹅脱氧胆酸等;结合胆汁酸系指上述胆汁酸以酰胺键(简称肽键)与甘氨酸或牛磺酸结合,分别成为甘氨胆酸或牛磺胆酸等。这些化合物存在于大多数脊椎动物中,是“胆苦”的主要成分。结合胆汁酸易溶于水,这是由于其分子中既含有亲水的羟基和羧基,又含有疏水的甲基,且这两种性质不同的基团又完全排列在环戊烷多氢菲核的两侧,使分子分为“亲水”和“疏水”两个侧面。故结合胆汁酸具有强乳化剂功能,使肠腔内油脂乳化成微粒,以增加油脂与消化液中脂肪酶(lipase)接触面积而便于脂类消化吸收,同时也促进对脂溶性维生素的吸收。

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