光海量存储的现状及发展趋势

给出了光存储与其它主流存储技术的区别及其技术特点,分析了构成光海量存储系统的途径,并简要分析了它们的主要工作原理及技术特点.在此基础上,扼要分析了现有提高存储器存储密度的思路及关键技术,给出当前国际先进水平的技术指标.介绍了国际光存储市场的现状及其市场预测.     

Recent Advancements and Future Challenges of Storage Systems

The rapid development of the Internet, fast drop of storage cost, and the great improvement of storage capacity have created an environment with an enormous amount of digital data. In addition to the traditional goals like performance, scalability, availability, and reliability, other challenges including manageability, searching for the desired information, energy efficiency, long-term data preservation, and data security become increasingly important for storage systems. We first present the evolution path of the past development of storage systems. The impact of the advancement of disk technology on fault tolerance is discussed next. The potential solutions and research issues of the new challenges are also briefly discussed.      

基于SAN非线性编辑系统存储技术的探讨

存储区域网(SAN)是一种新的网络存储体系结构,通过采用光纤通道作为传输协议,满足了海量信息的存储和快速传输的需求,比传统的直接连接存储模式具有更高的性能、可靠性和扩展性.讨论了基于SAN非线性编辑系统的存储结构及其技术优势.     

Putting data on a diet

The use of data compression to reduce bandwidth and reduce storage requirements is discussed. The merits of lossless versus lossy compression techniques, the latter offering far greater compression ratios, are considered. The limits of lossless compression are discussed, and a simple method for lossless compression, runlength encoding, is described, as are the more sophisticated Huffman codes, arithmetic coding, and the trie-based codes invented by A. Lempel and J. Ziv (1977, 1978), WAN applications as well as throughput and latency are briefly considered     

基于Oracle Spatial的GIS图层信息实时共享的实现方法

对GIS数据的特点和Oracle公司的空间数据插件Oracle Spatial做了简要的介绍,总结了GIS图层信息在Oracle中的存储结构,探讨了利用MapX与Oracle Spatial相结合来实现GIS图层信息实时共享的具体流程.对其中的MapX图元上传至Oracle数据库和将数据表中的图元数据下载至MapX中显示的实现过程及图元样式的恢复做了详细阐述,并给出了其中关键部分腃#例程.     

K9MDG08U5M在航拍相机中的应用

存储系统在现代数字系统尤其是在便携设备中具有重要地位,它的容量、体积等指标也有严格要求,对此文中提出了一种新的解决方案。介绍Samsung公司的128Gbit位闪速存储器K9MDG08U5M的特性和主要功能,详细讨论其在高分辨率航拍相机系统中的硬件设计和相关的软件编程。该系统经过实验验证：错、漏数据现象极少,并可以方便地应用于各种图象、语音等数据存储系统。     

透射全息资料存储

文章在简述了透射全息图基本原理的基础上，对于透光率不高的原稿，正反面都做出了比较清晰、对比度较高的再现像，成功地实现了对纸面文字资料的存储。     

Image data compression: A review

With the continuing growth of modern communications technology, demand for image transmission and storage is increasing rapidly. Advances in computer technology for mass storage and digital processing have paved the way for implementing advanced data compression techniques to improve the efficiency of transmission and storage of images. In this paper a large variety of algorithms for image data compression are considered. Starting with simple techniques of sampling and pulse code modulation (PCM), state of the art algorithms for two-dimensional data transmission are reviewed. Topics covered include differential PCM (DPCM) and predictive coding, transform coding, hybrid coding, interframe coding, adaptive techniques, and applications. Effects of channel errors and other miscellaneous related topics are also considered. While most of the examples and image models have been specialized for visual images, the techniques discussed here could be easily adapted more generally for multidimensional data compression. Our emphasis here is on fundamentals of the various techniques. A comprehensive bibliography with comments is included for a reader interested in further details of the theoretical and experimental results discussed here.     

基于深度学习的散列检索技术研究进展

大数据时代，数据呈现维度高、数据量大和增长快等特点。面对大量的复杂数据，如何高效地检索相似近邻数据是近似最近邻查询的研究热点。散列技术通过将数据映射为二进制码的方式，能够显著加快相似性计算，并在检索过程中节省存储和通信开销。近年来深度学习在提取数据特征方面表现出速度快、精度高等优异的性能，使得基于深度学习的散列检索技术得到越来越广泛的运用。总结了深度学习散列的主要方法和前沿进展，并对未来的研究方向展开简要探讨。     

基于单片机的大容量静态存储器接口设计

为解决采集系统中大量数据存储及数据传输问题,对数据采集系统中基于单片机大容量静态存储器的应用进行了刨析。闪速存储器采用Atmel公司的AT29C040,对系统的总体设计思想及闪速存储器的特点做了阐述。给出了基于8位单片机进行4Mb高速存储器扩展的具体接口电路及其驱动程序。该系统具有在掉电情况下保存数据的功能,且具有存储数据容量大,体积小,功耗低,数据保存安全可靠等特点,适合于便携式流动性环境下的数据采集系统。     

A Distributed In-Memory Database Solution for Mass Data Applications

In this paper, a Distributed In-Memory Database (DIMDB) system is proposed to improve processing efficiency in mass data applications. The system uses an enhanced language similar to Structured Query Language (SQL) with a key-value storage schema. The design goals of the DIMDB system is described and its system architecture is discussed. Operation flow and the enhanced SQL-like language are also discussed, and experimental results are used to test the validity of the system.     

A Case for Cloud-Based Mobile Search

Mobile search is beset with problems because of mobile terminal constraints and also because its characteristics are different from the traditional Internet search model. This paper analyzes cloud computing technologies-especially mass data storage, parallel computing, and virtualization-in an attempt to solve technical problems in mobile search. The broad prospects of cloud computing are also discussed.     

Automatic vehicle identification: Tests and applications in the late 1970's

To identify a vehicle uniquely and automatically as it passes on the roadway without requiring any action by the driver, one general approach uses a transponder on the vehicle and an interrogator by the roadside. When the identity is passed from the interrogator to a data system which may have data storage, retrieval, computation, display, and actuation capabilities, various functions such as charging for the use of road or parking facilities, fleet management, and fine grain traffic control become possible. The main purpose is to report recent testing of such systems and consider some probable early applications. At the outset, however, the functional requirements are discussed in more detail, and the background of automatic vehicle identification (AVI) development and testing is briefly reviewed.     

锂电池储能现状及前景研究

主要介绍锂电池储能现状,以MW级储能调频应用的主流类型为例简述技术特点,结合行业现状探究目前制约发展的问题及对市场前景进行了展望。     

基于XML的RFID数据集成研究与实现

文中简单介绍了RFID技术及其相关标准,阐述了RFID中间件作为RFID向企业级应用集成的数据存储特点,并针对RFID数据的存储进行了详细分析,提出以XML技术为媒介存储RFID数据向企业应用数据集成的设计思想和实现方法解决了RFID系统向企业级应用集成中数据存储共享的问题。     

一种高可靠大容量星载存储器的设计与研究

凭借着存储密度大和存储速率高的特点,基于NANDFlash的大容量存储器在星载存储领域得到了广泛的应用,由于NAND Flash本身存在缺陷,基于NAND Flash的大容量存储器在恶劣环境下的可靠性难以保证.提出了通过FPGA设计SRAM对关键数据三模冗余读取和缓冲、NAND Flash阵列热备份和数据的回放校验以及合理的坏块管理等措施,实现了高可靠性的大容量存储器.实验说明该系统不会因为外在偶然因素而造成数据的不完整,而且整个存储系统的成本开销相对于目前的星载存储器也非常低.     

Filing in a flash

A nonvolatile, rugged, sequentially accessed flash memory that provides an attractive solid-state alternative to disk drives is described. The advantages of the NAND EEPROM (electrically erasable and programmable read-only memory) for file storage, including mass memory storage, are discussed. Its reliability and cost-effectiveness are considered     

铁电薄膜：理论与应用

本文评述了铁电薄膜的制备力法;对铁电薄膜的理论研究成果作了概括的讨论,重点讨论表面层与膜层内应力对薄膜铁电行为的影响;文中介绍了铁电薄膜在存储、发光、显示及探测等方面的应用;最后简要地指出了铁电薄膜的理论与应用研究的前景。     

The IBM 3850 mass storage system: Design aspects

The IBM 3850 mass storage system is a new concept in large data base storage. This paper explores the principal design objectives and the options chosen in designing the hardware and the data flow for the system. The 3850 is an approach that provides up to 472 × 10⁹bytes of storage, gives reasonable on-line storage cost comparable to manually loaded flexible media products such as half-inch tape drives, provides internally controlled data staging at the request of the host processor, and provides a parallel-path data flow. The parallel-path data flow in turn provides multiple staging and destaging-plus increased availability of data--by using full multiple data paths for all data.     

水煤浆技术在中国的开发与应用

简要介绍了水煤浆技术的制备、储运、燃烧技术,阐述了水煤浆技术在中国的应用及已具备的科研和开发能力,对水煤浆的应用前景进行了预测。