互联网流量优化系统关键技术及应用分析

互联网用户和业务规模的快速发展,推动了数据流量的快速增长,网络建设和运营面临很大的压力和挑战,流量优化系统已成为实现数据流量的智能通道和分布式技术的载体。本文介绍了该系统的建设情况及载流优化、流量优化系统,比较分析了流量优化系统的关键技术、载流优化方案和技术实现方案,并对系统的开发和部署进行了优化。     

基于大数据分析应用的市场精准营销支撑新思路研究

针对目前粗放式流量经营模式存在的营销成本高、营销效率低、未能充分挖掘用户潜在价值的问题,从电信运营商角度入手进行研究,电信运营商应积极探索大数据分析应用,构建以数据仓库为载体的流量经营支撑平台,实现多维数据的关联分析,引入数据挖掘构建目标用户模型,建立高效的信息支撑平台支撑市场营销,提升营销效率、降低营销成本,实现从“粗放式流量经营”到“精准化流量经营”的华丽转变。     

应用EPE提高FID检测器稳定性

以FID作为检测器的色谱仪器,在石化、食品安全检测等领域应用非常广泛.由于柱前压力的波动,会出现检测器灭火、精度降低等现象,EPC（电子压力控制器）的应用,可调节柱前压力,以流量,避免出现检测器没火现象,并能够提高检测器的精度.     

民用与工商户燃气供销差的原因分析及解决办法

燃气供销差是指上游燃气气源供应量与销售给终端燃气用户气量的差额。燃气供销差率是燃气企业经营状况的一个重要指标,该文从民用与工商户的角度分析了燃气供销差产生的原因,找出存在问题,从技术和管理的角度提出了降低燃气供销差的办法。     

时间序列分解模型在图书借阅流量预报中的应用

基于时间序列分解法,建立了图书借阅流量预报模型.引入灰色系统理论来分离趋势,从预报结果可以看出,所建模型具有较高的准确性.     

城市燃气安全隐患分析与防范初探

城市燃气在给人们的生产和生活提供优质能源的同时也带来安全事故及隐患。该文首先对城市燃气的性质特点进行了分析,进而从燃气运输管道,燃气市场和人为因素等方面详尽的阐述了城市燃气事故原因,并对确保燃气安全使用提出一些有益的见解和措施,具有一定的现实意义。     

新型一体化多参量差压流量计

一种集流量、压力、温度测量为一体的差压流量计,主要由差压节流装置（一次元件）和多参量变送器（二次元件）组成。该仪表可以根据流量公式智能运算出瞬时流量和累计流量,并提供Rs485通讯、（4～20）mA标准电流输出;该仪表采用微功耗设计并具有内置电池,在外电断开的情况下可确保仪表正常工作和计量数据安全;其结构合理,体积小,维护方便,可靠耐用。     

浅议燃气企业施工阶段工程造价及成本管理

燃气行业作为资本密集型产业,需要在管网建设及燃气设施方面援入巨额资金.因而,加强燃气企业工程项目的成本控制,对于提高燃气企业的利润具有重大作用.本文主要阐述燃气企业工程项目造价及成本管理.     

低成本音频信号发生器的设计

本文论述的音频信号发生器内含音频信号发生器和频率计两部分功能。利用集成函数发生器ICL8038自行设计和制作音频信号发生器,精度高、稳定性好,以AT89C51单片机为核心自行设计和制作的频率计精度达到了0.01Hz。该机满足日常系统音频通道测试的需要。本文论述了相关电路原理和设计经验。     

居民室内燃气事故原因分析与防范措施

随着西气东输和川气东送两大工程建设的推进,合肥城市天然气的建设和发展达到了前所未有的规模,居民燃气用户已发展至75万户,居民燃气用户多集中在人员密集区,一旦发生燃气事故,不仅给家人造成生命和财产损失,还会殃及邻里。近年来合肥市居民室内燃气事故每年都会发生大小10余起,为了维护燃气客户的生命财产安全,该文对合肥市近年来燃气事故的成因、规律及危害进行了分析,并提出了有效的预防控制措施。     

Periodicals of Ethnic Minorities in Poland

ABSTRACT

The article examines the most important periodicals of ethnic minorities in Poland. After 1989, many ethnic groups (e.g., Germans and Romanies) were allowed to publish journals and newspapers for the first time since the end of World War II. The publications examined show the rich cultural life of the various ethnic groups as well as their current status in Poland. In addition to popular titles, some scholarly publications are also discussed.     

Reference Question Answered: Bibliographic Sources for the Ukrainian Periodical Press in the 1840s: Encyclopedias,Bibliographies, Guides,and Library Catalogs

The author answers a reference question on bibliographic sources for the Ukrainian periodical press 1840–1850. Helpful publications include bibliographies, guides, and library catalogs. These potentially make mention of revolutionary developments in Hungary (such as the Twelve Points paragraph of the Demands of the Hungarian Nation in March 1848, the subsequent April Laws, and Hungary's declaration of independence in April 1949), and elsewhere in the Hapsburg Empire.     

The Slavic Humanities Index: Current Developments and Future Plans

The author describes the Slavic Humanities Index, a bibliographic database of scholarly and cultural articles on subjects including history; literature; language teaching; linguistics; philosophy; ethnology; performing arts; and cultural, borderland, and regional studies. She discusses its development, its current form and functionality, and plans for the future.     

Modeling Collection Development Behavior

Most studies of collection development mask inadequate theoretical underpinnings with facile assumptions and dazzling statistical manipulations. This essay, in moving toward a model for collection development within both specific collections and library systems as a whole, seeks to demonstrate the full range and complexity of relevant factors. An enlarged theoretical grasp should help highlight both the possibilities and the challenges of existing approaches. One result could be a shift toward gaming or simulation techniques as more realistic analytical tools.     

Selected List of GLBT Popular Publications

An annotated list is presented describing seventeen periodicals that cover significant aspects of the gay, lesbian, bisexual, and transgender (GLBT) community and their culture in whole or in part, with popular content rather than an academic or research focus. The titles included are a selective and representative sampling. The entry for each periodical includes the following information: periodical title, publisher/editor and address, basic information, publication data, content, Internet information, an abstract/annotation, and evaluative statement     

Electronic Interlibrary Loan Delivery with Ariel and ILLiad

SUMMARY

Ariel files are the starting point for electronic delivery of interlibrary loan articles through ILLiad, Virginia Tech's interlibrary loan system. Despite some advantages to electronic delivery of articles to their desktops, a large majority of ILL customers continue to prefer print on paper delivery rather than electronic delivery. This fact has implications for introducing additional electronic services. Correctly choosing what services to impose on library customers, and what services to offer as value-added options, is fundamental to maintaining the credibility of libraries during these times of rapid change.     

Toward a Model ILL and Document Delivery Automated System: A Case Study

SUMMARY

The state of Illinois funded a large scale Ariel project. This is a report of the project's successes and shortcomings. Although widely successful, additional training in the use of sophisticated hardware, primarily Minolta scanners, is needed. Data on sending and receiving is included.     

The Slovak Periodical Press: Historical Development,Current Content,New Forms of Access

SUMMARY

The authors discuss the development of the Slovak periodical press within its historical context and their expectations for its future. The article covers general characteristics of Slovak magazines and newspapers from World War II to 1989, and their later development since the Velvet Revolution up to the present. It also discusses the Slovak press outside of Slovakia from the late nineteenth century.     

Jewish Book Publishing Today in the Countries of the Former USSR

SUMMARY

This article discusses Jewish book publishing in most of the Soviet Union's successor states after 1990. All publications on Jewish history, culture, traditions, and religion (Judaism) are included under this rubric. In addition to scholarly and educational publications, fiction translated from Yiddish and Hebrew, and “Russian-Jewish literature” are also included. The author provides statistics and discusses basic themes, linguistic issues, and problems encountered in the post-Soviet states. The article lists different publishers and organizations involved in Jewish book publishing.     

An Empirical Research Study of the Efficacy of Two Plagiarism-Detection Applications

This article describes a study of the two most popular plagiarism-detection software platforms available on today's market—Turnitin (http://www.turnitin.com/static/index.html) and SafeAssign (http://www.safeassign.com/). After a brief discussion of plagiarism's relevance to librarians, the authors examine plagiarism-detection methodology and conduct a review of the current literature regarding plagiarism-detection efficacy. To evaluate detection efficacy for Turnitin and SafeAssign, the authors constructed a brief study in which twenty sample papers containing portions of plagiarized material were submitted to each platform. The results show that Turnitin had the highest overall success at plagiarism detection with an 82.4 percent detection rate. Additionally, both platforms had a combined false-positive detection rate of 16.8 percent. The authors conclude that close review of material suspected of plagiarism is still essential for proper identification.