Korean Academic Librarians’ Recognition of the High Density Book Storage System

Korean academic libraries are facing a serious space shortage problem due to the inability to uphold the rapidly increasing amount of printed materials despite having expanded the number of physical facilities. Data computerization has been considered as a solution to the issue, but deliberation for the High Density Book Storage System has been on the rise because of its impressive method of preserving printed materials in a realistic facility. Despite the different methods of print material storage, Korean academic libraries have largely focused on investing in the least efficient method of compact shelving to solve this issue. It is hypothesized that the misuse of funds on inefficient systems is occurring due to the lack of knowledge about the high-density book storage systems like the Harvard model. In order to propose a realistic solution to the academic library space shortage crisis on a logical basis, it is imperative that a study of academic librarians is conducted to investigate their knowledge on such efficient storage systems.

Exploring the Three-dimensional Framework of Knowledge Service in the field of Library and Information Science(LIS)

The evolution of the society and economy has stimulated the development of Knowledge Service(KS), making it an indispensable solution to address future challenges facing libraries and information institutions. However at present, academic research on knowledge service is falling short and its definition is far from clear and complete. As such,this article proposes the Three-dimensional Framework Knowledge Service(TdFKS) for libraries and information institutions based on the knowledge value chain model. By making reliability analysis and mean value analysis of a questionnaire survey result, the article clarifies the structure of the three-dimensional framework and verifies the rationality of the TdFKS.

Characterizing three-dimensional features of Antarctic subglacial lakes from the inversion of hydraulic potential——Lake Vostok as a case study

To estimate basal water storage beneath the Antarctic ice sheet, it is essential to have data on the three-dimensional characteristics of subglacial lakes. We present a method to estimate the water depth and surface area of Antarctic subglacial lakes from the inversion of hydraulic potential method. Lake Vostok is chosen as a case study because of the diverse and comprehensive measurements that have been obtained over and around the lake. The average depth of Lake Vostok is around 345±4 m. We estimated the surface area of Lake Vostok beneath the ice sheet to be about 13300±594 km^2. The lake consists of two sub-basins separated by a ridge at water depths of about 200–300 m. The surface area of the northern sub-basin is estimated to be about half of that of the southern basin. The maximum depths of the northern and southern sub-basins are estimated to be about 450 and 850 m, respectively. Total water volume is estimated to be about 4658±204 km^3. These estimates are compared with previous estimates obtained from seismic data and inversion of aerogravity data. In general, our estimates are closer to those obtained from the inversion of aerogravity data than those from seismic data, indicating the applicability of our method to the estimation of water depths of other subglacial lakes.

Study on the Cap Rock Deformation of Hutubi Underground Gas Storage by GPS Observations

The deformation responses of surface cap rocks of Underground Gas Storage( UGS) in Hutubi,Xinjiang during gas injection and production were investigated with the GPS data recorded by the deformation monitoring network,which includes 13 observation sites. The time series of three-dimensional deformation of the surface cap rocks was obtained in the UGS operation process,and the deformation signals in different phases were identified by combining the GPS data with wellhead pressure data. The results show that the respiration response of surface cap rock deformation is obvious during gas injection and production of UGS,and the surface deformation due to a 1MPa change of wellhead pressure is 1. 02 mm in gas injection and 1. 24 mm in gas production horizontally, and- 1. 11 mm in gas injection and 0. 86 mm in gas production vertically.

Construction and Characterization of Grass Carp (Ctenopharyngodon idellus) Fosmid Library

Grass carp （Ctenopharyngodon idellus） genomic fosmid library cotaining 129 014 clones was constructed and characterized from one diploid grass carp. The average insert size of the fosmid library was determined to be 35 kb by pulsed field gel electrophoresis, which is 4.1-fold coverage of the grass carp genome. To demonstrate the probability of picking the functional genes from the library, eleven functional genes were screened by three-dimensional PCR technique. The number of positive clones of these genes was from 1 to 6. So, this library may screen any useful genes from grass carp. This grass carp genome fosmid library will be integrated in the presently ongoing efforts to determine the sequence of the grass carp genome.

Fabrication of three-dimensional WO_(3)/ZnWO_(4)/ZnO multiphase heterojunction system with electron storage capability for significantly enhanced photoinduced cathodic protection performance

A novel three-dimensional hierarchical WO_(3)photoelectrode was prepared by solvothermal method,and ZnO was deposited on its surface by electrochemical method.The WO_(3)/ZnWO_(4)/ZnO multiphaseheterojunction photoelectrode was prepared by further annealing treatment to explore the photoinduced cathodic protection(CP)performance.Compared with WO_(3)and ZnO,the photoinduced CP and electron storage capacity performance of WO_(3)/ZnWO_(4)/ZnO is significantly improved in 3.5%NaCl solution without adding any hole scavenger.The electron storage capacity of the WO_(3)/ZnWO_(4)/ZnO heterojunction makes it possible to continuously protect metallic materials in the dark after switching off the light,which can realize long-term and effective photoinduced CP.

基于Room的持久存储的设计与优化

Room库作为一种强大的数据库轻量级持久化框架,广泛应用于Android应用的持久存储设计。文章介绍了Room库的核心架构和组件,提出了Room性能优化的策略,以提高数据库操作的效率和响应性,对构建高质量、高性能的Android应用程序有一定的指导意义。

美国高校共建共享型合作储存图书馆的新进展及启示——以ReCAP储存图书馆为例

文章简要概述了美国高校储存图书馆建设的整体情况,并以研究性馆藏与保护联盟(ReCAP)为例,介绍了美国高校储存图书馆从合作储存到共享馆藏再到合作采购的新进展。这些进展为我国高校储存图书馆建设提供了启示:建立“机构之上”合作理念;打造高效协同的合作储存模式;构建自动化存取仓储系统;提供无缝发现服务;确保合作储存可持续发展。

高比例新能源接入下的历史策略库辅助源网荷储协同实时电压控制研究

随着“双碳”目标的推进,储能、充电桩等用户侧新型负荷设备数量增多。在此背景下,由于量测条件不满足造成的不可观测区域将直接导致传统的电压控制方法难以完成对分布式电源的精准调控。为解决上述问题,提出一种基于蜣螂优化算法(DBO)的极限学习机(ELM)构建历史策略库,用以辅助源网荷储协同实时电压控制的方法,可实现对配电网电压实时精确控制。首先介绍了基于近似灵敏度计算的电压控制方法,然后介绍了DBO改进的极限学习机和历史策略库的概念及结合应用方法,构建了以基于近似灵敏度计算的电网节点有功及无功功率为输入,母线期望电压为输出的ELM模型。模型输出的母线电压作为控制依据,进一步转换为下发的用户侧可调设备调节指令。仿真算例的结果验证了所提方法的有效性和优越性。

长江三角洲区域公共图书馆纸质文献合作存储探讨

在长三角地区公共文化服务一体化发展的背景下,纸质文献合作存储面临着前所未有的历史性机遇。文章对阻碍长三角地区纸质文献合作存储协同发展的因素进行了研究,结果表明,虽然长三角地区在公共文化服务协同发展方面有了一定的基础和认识,但由于缺乏整体规划、对必要性的认识不足以及缺乏适当的法律和政策,纸质文献合作存储协同发展仍面临一定的困境。因此,文章提出强调顶层设计,达成合作存储共识等策略,探讨纸质文献合作存储项目的建设与运营方案,以稳步推进、长期高效运行为目标,实现经济效益和社会效益的最大化。

基于区块链分级存储与国产商用密码技术的高校图书馆信息系统网络安全保障

为了提升图书馆信息系统网络安全保障能力,确保图书馆信息系统安全稳定运行,对数字图书馆信息系统面临的身份假冒、数据泄露、数据篡改、数据破坏、重要操作难以溯源等突出网络安全问题进行研究,提出了解决思路和方法,包括基于区块链分级存储实现图书馆信息系统数据存储安全,基于国产商用密码技术实现图书馆信息系统身份认证、数据加密保护、数据完整性保护、操作真实性和抗抵赖保护,对建设完善有效的图书馆信息系统网络安全整体保障体系、提升图书馆信息系统网络安全保障能力具有指导意义。

媒资近线存储方案设计与实现

媒资系统作为电视台重要资产的保存和积累中心,在电视台日常运营中发挥着重要作用。随着高清、超高清电视技术的发展,视频码率的提升对于存储性能和容量的需求成倍增长。电视台需要不断投入大量的资金购置新的近线存储体,用于收集、整理、存储和再利用有价值的资料,以实现全台业务在媒资系统协同下的生产调度。蓝光光盘库以其长寿命、高安全、低功耗等特性,适用于存放不经常被修改的数据,成为数据备份的第一选择,也成为媒资近线存储体的首选。针对宁夏广播电视台现有存储系统的问题,介绍宁夏广播电视台媒资近线存储系统技术选型与设计,详细阐述媒资近线存储系统的实现与部署过程。

AIGC时代公共图书馆云存储解决方案——以南京图书馆为例

当今社会信息爆炸的现象日益显著,各行各业的数据均展现出成倍增长的趋势。这一海量数据的涌现,无疑对存储设备提出了更为迫切的需求,公共图书馆领域亦不例外。鉴于此背景,文章以南京图书馆为例,致力于构建一个既能顺应时代发展潮流,又能满足实际应用需求的云存储平台,旨在通过此平台的建设,为公共图书馆的存储方案提供有益的参考与指导,助力其更好地适应生成式人工智能(AIGC)时代的发展步伐,实现信息的有效管理与利用。

数字化藏书激光存贮检索信息类目映射方法

数字化藏书存贮检索受到信息映射影响,导致覆盖率与准确率值偏低,提出数字化藏书激光存贮检索信息类目映射方法。通过映射系统统计中图法和杜威十进分类法中的USMARC记录实例,构建类号映射关系,规范化处理中图法和DDC的数据,构造类目数据结构,划分检索数据表,抽取检索特征词;依据双序列比对,计算特征词、复合词汇类目和所处环境的相似度,实现数字化藏书激光存贮检索信息类目映射。实验结果表明,映射方法的覆盖率达到98.38%,准确率达到97.48%,该方法实现了覆盖率与准确率的双重提升。

基于Revit软件平台下的BIM接地导体参数化构件库探究

随着数字化技术的发展,BIM设计在水利水电行业得到广泛应用,但在Revit平台中,缺乏水电行业族库,特别是针对有路径敷设需求的机电设备,笔者探讨了如何建设和管理接地导体的参数化族库,以应对这一问题。通过自定义参数化族库,可以减少设计工作量,提高设计效率。该方法适用于类似种类繁多的机电设备,旨在为抽水蓄能专业设计师提供实用的参考,推动水利水电行业的数字化转型。

生物医药实验室化学试剂暂存间安全管理研究

本文以高校生物医药实验室化学试剂暂存间(中间仓)为研究对象,探讨了化学试剂暂存间合规性、技术防范措施、安全管理制度建设、应急管理以及利用CRW软件辅助评估危险化学品储存禁忌问题。研究内容对于理解和优化高校实验室化学试剂暂存间的安全管理具有实际参考价值,并为高校实验室安全管理提供了部分思路和方法。

数字图书馆存储系统解决方案

存储系统作为数字图书馆的支撑平台,是数字图书馆建设的一个基础和重要组成部分。在分析了当前主流网络存储技术以及高校数字图书馆存储需求的基础上,提出高校数字图书馆建设的存储解决方案,包括设计原则、设计方案、设备配置以及存储管理方面的内容。

图书馆海量存储系统架构与接口的选择

分析了存储系统三种架构的不同特色 ,介绍了光纤通道的优点 ,指出了 SCSI通道的局限性 。

高校图书馆面临的数据安全问题及防护策略研究

[目的 /意义]研究有效的数据安全防护策略,以应对高校图书馆面临的数据安全威胁,为高校图书馆提升服务质量和效率提供可靠的技术保障。[方法 /手段]运用云存储、分级加密、大数据分析、WAF、RBAC等技术和生命周期理论,结合高校图书馆面临的数据安全问题,从存储安全、网络安全、隐私泄露三方面进行分析、研究。[结论/结果]从数据云安全存储、提高网络安全防护技术、基于数据生命周期的隐私保护三方面提出多维、有效的高校图书馆数据安全防护策略。

湖北省高校图书馆低利用率文献合作储存的机制和模式研究

在对湖北地区高校图书馆印刷型文献存储现状开展调研的基础上,分析了其中存在的矛盾与面临的困境,提出针对低利用率文献构建合作储存体系是解决空间问题的最好尝试;分析了湖北省高校图书馆低利用率文献合作储存的运行机制,提出了区域集中储存和学科分布储存两种合作模式,并提出解决地区高校图书馆文献存储空间匮乏的对策,及高校合作储存库模型构建和运作的方法。