Efficient integrated bus coding scheme for low-power I/O

Bus-Invert (BI) coding schemes have been used in the circuit design to save power usage by minimizing the number of transitions between successive words. With an increased number of bits for bus width, many other coding schemes like Bus-Shift (BS) and Shift-Invert (SINV) have been proposed for better power saving. In this paper, we are proposing a new Successive Shift-Invert (SSINV) coding scheme where the transmitting data will first be inverted. Then both the original and the inverted word will be shifted circularly for each bit and compared with the data just sent for least hamming distance. Thus, the combination having the least hamming distance with the last sent data will be selected and sent. The proposed method exhibits better power saving compared to other reported methods, but needs one extra control bit than BS; which add to the computation time. Simulation results show a saving margin of 5–15% in average cases in comparison with BI, BS, and SINV for higher bus width. A VerilogA implementation of SSINV using TSMC 65 nm technology is also presented as a proof of concept.     

电信行业经营分析系统下阶段建设重点

随着运营商在各省进行经营分析、决策支持等系统的建设，商务智能技术已成为电信企业日常工作中进行业务分析的一种有效的工具，并在运营商的经营分析系统建设中取得一些进步。通过分析经营分析系统下阶段发展重点分析，提出经营分析系统下阶段发展重点建议。     

Netstream——精细化网络流量分析之利器

近年来宽带市场增长势头强劲,数据业务的增长带来了网络流量的大幅增长,流量的监控、安全管理、网络规划以及计费都面临着严峻的考验,运营商面临着巨大的压力,传统的粗放式流量统计管理已经远远不能满足运营商的要求,Netstream的出现为流量的精细化管理提供了重要的基础数据平台,结合OLAP技术对数据进行抽取、挖掘和多维展现,依托对运营需求的深刻理解,华为推出了iManagerD2610网流分析系统,其强大的网流采集分析能力为运营商提供了辅助经营分析的利器。     

反相高效液相色谱法分离测定复合维生素片剂中VB1,VB2,VB6和烟酰胺

采用NovaPak C18色谱柱(30 cm×3.9 mm,粒径10 μm),以(V(水)V(甲醇)V(冰乙酸)m(庚烷磺酸钠)=730 mL270 mL5 mL400 mg)为流动相,检测波长为280 nm,分离测定了复合维生素片剂中的VB1,VB2,VB6和烟酰胺,实验回收率分别为100.5%,96.8%,98.1%,102.0%,相对标准偏差RSD分别为0.8%,0.4%,0.5%,1.2%(n=5),检出限分别为39,4.2,4.7,10 ng.本法已用于复合维生素片剂中VB1,VB2,VB6和烟酰胺的分离和测定.     

Analysis of a transparent organic photoconductive sensor

The electro-optical performance of transparent photoconductive sensors based on stacks of organic layers is investigated. The photoconductive sensors are composed of interdigitated electrodes covered with a stack of two transparent organic compounds: a hole transport layer 1,3,5-tris[(3-methylphenyl)phenylamino]benzene (m-MTDAB) and an exciton generation layer 3,4,9,10-perylenetetracarboxylic bis-benzimidazole (PTCBI). The photocurrent through the device is measured as a function of the voltage across the electrodes for different illumination levels. Based on the measurements we can explain the working principle of the photoconductive sensor and compare the performance of four different stacks. In order to study the optical sensitivity in more detail, a photoconductive device with two parallel electrodes is manufactured and illuminated by a line-shaped laser beam that covers only a fraction of the gap between the electrodes. The current through the photoconductive sensor is measured as a function of the position of the local illumination for a set of voltages. The experimental results confirm that there is a high-field space charge region near the cathode.     

Research of CRM Based on Customer Intelligence Engine

The discipline of business intelligence addresses a broad range of functional activities from data mining and statistical analysis to predictive modeling and reporting, and customer intelligence is the actionable output from an intelligence eco-system. In order to focus enterprise's attention on their customers satisfaction in the customer relationship management and make CRM system run more efficiently, a new concept of customer intelligence engine(CIE) is proposed at first time in the paper, the architecture of CIE is structured, the trigger of CIE is defined and described, the CIE-based CRM eco-system is also discussed.     

基于扰动模糊综合评价法的企业BI项目实施风险评估研究

商业智能(BI)系统能够帮助企业经营者进行智能化的决策,但在一个日益复杂的企业运营环境中,BI系统的实施如同ERP系统一样,面临着巨大的问题、压力和高风险.针对以上特性,提出了一种BI项目实施风险扰动模糊综合评价模型和方法,以上海新媒体A公司的BI项目为实例对企业BI项目实施中的各相关风险因素进行了分析,最优判别,得出了导致风险的主要因素,同时为BI实施风险规避策略提供科学依据.     

Vapor generation – atomic spectrometric techniques. Expanding frontiers through specific-species preconcentration. A review

We review recent progress in preconcentration strategies associated to vapor generation techniques coupled to atomic spectrometric (VGT-AS) for specific chemical species detection. This discussion focuses on the central role of different preconcentration approaches, both before and after VG process. The former was based on the classical solid phase and liquid–liquid extraction procedures which, aided by automation and miniaturization strategies, have strengthened the role of VGT-AS in several research fields including environmental, clinical, and others. We then examine some of the new vapor trapping strategies (atom-trapping, hydride trapping, cryotrapping) that entail improvements in selectivity through interference elimination, but also they allow reaching ultra-low detection limits for a large number of chemical species generated in conventional VG systems, including complete separation of several species of the same element. This review covers more than 100 bibliographic references from 2009 up to date, found in SCOPUS database and in individual searches in specific journals. We finally conclude by giving some outlook on future directions of this field.     

ETL在超市大数据量中的应用研究

数据抽取、转换和装载（Extract,Transform and loading,简称ETL）是数据仓库、数据挖掘以及商业智能等技术的基石.文中首先简单介绍了ETL概念及其意义,然后设计和开发了应用于超市行业商业智能的ETL程序,已在超市行业管理信息与决策支持系统中得到应用.     

商业智能在广告业务中的应用

商业智能系统是帮助企业从大量不同来源的数据中挖掘信息、发现问题、寻找机会的有力工具。建立商业智能系统不是追求时髦的技术,而是要满足企业在信息分析方面的实际需求。本文简要介绍了商业智能系统的结构以及商业智能系统与业务处理系统的区别,并针对中央电视台广告部对信息分析的实际需求,对实施商业智能系统所应该考虑的因素提出了自己的观点。