【摘 要】
:
价格是图书馆开展有偿数字信息服务要解决的重要问题。本文分析了影响数字信息服务定价的因素,介绍了若干定价方法的适用性和优缺点,并提出了建设性意见。
Price is an impo
论文部分内容阅读
价格是图书馆开展有偿数字信息服务要解决的重要问题。本文分析了影响数字信息服务定价的因素,介绍了若干定价方法的适用性和优缺点,并提出了建设性意见。
Price is an important issue to be solved in libraries for paid digital information service. This article analyzes the factors affecting the pricing of digital information services, introduces the applicability, advantages and disadvantages of a number of pricing methods, and puts forward constructive suggestions.
其他文献
目的观察2型糖尿病皮肤感染者的临床干预效果。方法选择37例2型糖尿病并发皮肤感染患者,对局部皮肤感染伤口进行治疗护理、饮食控制、健康教育及心理干预等方法。结果通过临
目的:比较中药单体化合物小檗碱和噻唑烷二酮类药物罗格列酮对高脂饲料诱导大鼠非酒精性脂肪性肝炎(NASH)的干预作用,探讨小檗碱成为天然胰岛素增敏剂的可能性。方法:雄性SD
Objective To select cytokines for diagnosis of tuber-culous meningitis.Methods One hundred and twenty kinds of cytokines were detected with protein chips among
Objective To investigate the antiviral efficacy of standard treatment with interferon(IFN)-α2b and ribavirin(RBV)in patients with chronic hepatitis C(CHC)origi
PANCREATIC tuberculosis(TB)is a rare disease and its diagnosis is difficult because of the lack of specific clinical manifestations.Computed tomography(CT)and m
Objective To investigate the efficacy of polyethylene glycol(PEG).interferon a(PEG-IFNct)in treating HBeAg-positive chronic hepatitis B(CHB)and explore the rela
目的调查云南省高危地区(昭通市的永善县、普洱市的江城县)碘缺乏病流行现况及防治措施落实情况,适时采取应急强化补碘措施。方法入户家庭主妇问卷调查、采集居民食用盐测定
目的分析大连市疟疾疫情情况,为大连市疟疾防治工作提供科学依据。方法以2013年度大连市疾病预防控制中心疟疾疫情报告资料为基础,以全国疟疾病人个案调查表收集个案信息,描
Objective To determine the levels of CC chemokine ligand 5 (CCL5) in serum and synovial fluid (SF) from patients with rheumatoid arthritis (RA) and their relati
通过对江苏省区域馆际互借服务统计数据的分析,发现存在单位借出/借入量严重不均、通用借书证利用率过低和区域发展不平衡等问题,认为采用直接借阅模式是造成问题的根本。改