A Guide to Selecting and Implementing Security Controls

ABSTRACT

The purpose of this article is to inform and educate the Information Security (IS) professional about some of the key/fundamental tenets of Sarbanes-Oxley (SOX), especially in the context of Confidentiality, Integrity and Availability of information, the three cornerstones of every security initiative. The focus is on such Sections of the Act as 404 (Internal Controls), 302 (Management Certifications), 806 (Whistleblower Protections), 409 (Real Time Disclosures), 802 (Alteration of Documents), amongst others. The purpose is to develop an appreciation and understanding of IS requirements and implications of SOX, and likewise to better understand how SOX can provide a basic roadmap for IS that every professional, department and organization may be able to use.     

国产流滴剂与进口流滴剂性能比较及探索

分析比较了国产流滴剂与进口流滴剂在持效期、喷霜量、膜透明度(雾度)、合成工艺、热稳定性几方面的差异，阐述了流滴剂性能与分子结构的关系、影响薄膜雾度的主要因素，提出了改善透明度的方法和措施，并将新研制的LA-8、LA-9两种流滴剂与进口流滴剂KF650做了实验室扣杯试验和农田越冬应用试验比较，从而为国产流滴剂赶超进口流滴剂做了有益探索。     

Influence of different polyesters and their molecular weight on the textural and electrooptical behavior of polymer‐dispersed liquid crystals

The textural and electrooptical behavior of a nematic liquid crystal (LC) dispersed in a flexible and rigid polyester was studied. The dispersion of LC in the polymer matrix and light transmission through the polymer‐dispersed liquid crystal (PDLC) is governed by the nature of the polymer, its molecular weight, and the applied voltage. It was observed that the transmission of light and the dispersion of LC maximizes their respective values at the minimum molecular weight irrespective of the nature of the polymer and at the maximum voltage. The reason is the predominance of chain alignment over entanglement at the minimum molecular weight. As molecular weight increases, the transmission of light as well as the dispersion of LC in the polymer may increase or decrease depending on the predominance of chain entanglement or chain alignment. The alignment of LC droplets in the direction of the applied voltage is increased by an increase in the applied voltage, causing enhancement of the light transmission. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 87: 284–289, 2003     

透明环保型建筑防水涂料的研制

分别以闭端型预聚体高分子材料、丙烯酸酯乳液、乙烯-醋酸乙烯酯乳液为主要成膜物质,复配成膜助剂、抗老化剂等助剂,制成透明型防水涂料.测试表明,以闭端型预聚体高分子材料配制的透明型防水涂料拉伸强度大于20 MPa,断裂延伸率大于700％,透明性大于98％,类似普通透明玻璃,十分适合有特殊要求的建筑外墙或外围护结构的防水或防护.     

PET薄膜透明度的分析及实验

从原料、干燥条件、熔融工艺、TDO拉伸工艺等方面分析了影响PET薄膜透明度的因素。并进行了原料和工艺对光学性能影响的实验。     

基于1,2,4-三羧基-3-羧甲基环戊烷二酐的可溶性聚酰亚胺垂直取向剂的制备及性能

采用1,2,4-三羧基-3-羧甲基环戊烷二酐（TCA）、4,4’-二氨基二苯甲烷（MDA）及长侧链二胺4-十二烷氧基苯甲酸酯联苯酚-3’,5’-二胺基苯甲酸酯（DBPDA）共聚制备了一系列的聚酰亚胺。并对其溶解性能、透光性能及取向性能进行了测试。结果显示,聚酰亚胺在有机溶剂中可溶,成膜后紫外透光率较高,在波长400 n...     

Digital rights management system with user privacy,usage transparency,and superdistribution support

In the modern world, digital content has been massively produced, distributed, and consumed by human beings; consequently, how to protect the rights and benefits of content consumers, producers, and distributors has become a crucial issue. One promising solution is to design a full‐fledged digital rights management (DRM) system. In this study we introduce a new design on the digital rights management system providing user privacy, usage transparency, and superdistribution. A comprehensive set of DRM processing functions and corresponding mechanisms are developed in our system to support various business process requirements. Superdistribution support is embedded in our system design. A prototype is implemented to verify our system design. To protect consumer privacy, a temporary identity is generated for each consumer using the KryptoKnight protocol. Elliptic curve cryptography‐based encryption scheme is adopted for messages transmitted among servers and client over an unsecure communication channel. For usage transparency, a user‐friendly DRM client package (software) is introduced in the proposed DRM system to achieve content protection and support user convenience in usage.Copyright © 2012 John Wiley & Sons, Ltd.     

Cationic polymerization of hydrogenated bisphenol‐A glycidyl ether with cycloaliphatic epoxy resin and its thermal discoloration

One of the key issues associated with epoxy resin–based LED encapsulant is discoloration under operating conditions that caused a decrease in light output. In this article, thermal cationic polymerization of hydrogenated bisphenol‐A glycidyl ether using 3‐methyl‐2‐butenyltetramethylenesulfonium hexafluoroantimonate and its discoloration are reported. Polymerization was followed by thermal analysis, FT‐IR spectrum, and hardness measurements. Thermal discoloration was measured by yellowness index based on transmittance spectrum. Increased catalyst concentration causes acceleration in polymerization rates, but this also increased discoloration after thermal aging. In low catalyst concentration under 0.3 wt %, the hardness of plaque was low and required a high temperature to complete polymerization and this resulted in a highly colored plaque. Formulation with cycloaliphatic epoxy (3′‐4′‐epoxycyclohexane)methyl 3′‐4′‐epoxycyclohexyl‐carboxylate (CEL2021P) enhanced the polymerization even at low catalyst concentration and reduced thermal discoloration. With addition of di‐t‐butylphenol (BHT) as the oxidation inhibitor, the thermal discoloration was extremely improved but this also caused inhibition of polymerization as seen by thermal analysis. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 97: 1395–1400, 2005