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1.
针对当前高校图书馆图书采访队伍存在的问题,提出了加强高校图书馆图书采访队伍建设、提高图书采购质量的若干措施,包括对采访人员进行培训、建立复合型图书采访队伍、让读者直接参与图书采访等。  相似文献   

2.
王竹 《科技信息》2012,(34):I0228-I0229
本文阐述了高校图书馆加强图书采访质量控制的必要性,指出影响图书采访质量的主要因素,探讨了提高图书采访质量的措施,最终实现图书馆整个图书采访工作的质量管理。  相似文献   

3.
在分析新时期出版市场、发行渠道、采购政策、读者需求等环境因素变化的基础上,以提高图书采访质量为中心,从资源建设原则、图书采购招标、图书采购方式、选书方法等几方面,探讨了图书采访质量控制的有效做法,阐释了图书采访质量评价的意义和内容。  相似文献   

4.
网络环境下图书采访预订数据库的建设   总被引:2,自引:0,他引:2  
徐林 《甘肃科技》2001,17(6):31-31
本文联系本馆的图书采访工作情况,针对2000年引进北京传技信息系统有限公司TOTALSⅡ图书馆自动化系统的实际应用,重点对该系统图书采访预订数据库中的主要功能及采访数据库与编目数据库的关系加以论述。 1 图书采访预订数据库建设的必要性 近年来,图书出版业的快速发展与出版物多渠道报道发行给图书采访工作带来许多困扰。文献量的增多,用户需求量的增加和多样化信息需求的增长,传统手工目录已显出手续繁多,占据空间大,功能少,检索费时,数据共享性能差等弊端。因此图书采访预订数据库的建设则成为图书采访工作自动化的首…  相似文献   

5.
阐述了网络环境下图书采访工作的新特点,对图书供应商和采访人员提出了新的要求,介绍了如何利用网络做好本校的图书采访工作。  相似文献   

6.
从高校图书馆的图书采访工作特点出发,分析了政府招标模式下图书采访工作的利弊,探讨了优化图书采访工作的方案和改进流程。  相似文献   

7.
针对高校图书馆图书采访面临的现实问题,作者认为应该从采访前、采访中和采访后三个方面对图书采访工作进行全面的质量控制,以保证所购图书的质量。  相似文献   

8.
韩葆青 《甘肃科技纵横》2010,39(3):104-105,125
本论述根据高校图书馆采访工作的现实情况,从实际出发,提出了明确采访目标,制定合理的图书采访计划;建立读者专家与图书采访互动机制;采用多样式采访模式;加强特色馆藏的建设,完成馆藏缺失的补充等八种提高图书采访工作的新思路。  相似文献   

9.
影响高校图书采访质量的因素及对策   总被引:1,自引:0,他引:1  
讨论了影响高校图书馆图书采访质量的相关因素,如信息不对称、现行图书采访方式、图书采访人员素质等,并提出了控制图书采访质量的对策。  相似文献   

10.
从图书采访的定义、工作流程和现实需求出发,分析了高校图书馆图书采访工作的现状,研究了基于数据挖掘的高校图书馆图书采访决策的信息流,设计了基于数据挖掘的高校图书馆图书采访决策模型,探讨了数据挖掘在高校图书馆图书采访决策中的应用.  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3~4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰~ -7.8‰, PDB) and matrix dolomites (-6.6‰~ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084~0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078~0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.  相似文献   

13.
AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…  相似文献   

14.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

15.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

16.
本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。  相似文献   

17.
There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.  相似文献   

18.
19.
The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to  相似文献   

20.
Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with  相似文献   

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