Selective video encryption algorithm based on H.264/AVC and AES

H.264/AVC is an industry standard that has been designed to address different technical solutions such as broadcast applications, interactive or serial storage. conversational services, Video on Demand or multimedia streaming services [1]. The main objective behind the H.264 [2][3] development was to build a high peIformance video coding standard by adopting a back to basics approach with a simple and straightforward design using well known blocks. H.264/AVC is based on the conventional block motion compensated video coding the same way as the existing standard

MEASURING STRATEGIES FOR KNOWLEDGE MANAGEMENT AND ORGANIZATIONAL PERFORMANCE IN LIBYAN TRANSPORTATION INDUSTRY: STRUCTURAL EQUATION MODELLING

The purpose of this research is to measure the strategies for knowledge management and organisational performance in Libya using an approach to structural equation modelling (SEM). The research method of this analysis is a quantitative method only, where the total sample size is assumed to be 453 using simple random sampling. The structural model for this analysis showed the relationships between the variables. The results show that the framework of knowledge management is significantly related to the strategy of knowledge management, while knowledge management practise is significantly related to the strategy of knowledge management. However, the framework of knowledge management was found not to be very positively linked to organisational performance. Unexpectedly, in terms of significantly related to organisational performance, knowledge management activity has also not been considered relevant. Knowledge management approach, on the other hand, is positively linked to organisational performance and to the reciprocal relationship between the system of knowledge management and the practise of knowledge management. By offering an empirically validated model that could be used to forecast organisational performance as a whole, this study has added to established knowledge. JEL: L10; L25; L91 Article visualizations

A CONCEPTUALIZATION OF KNOWLEDGE MANAGEMENT STRATEGY TOWARD ORGANIZATION PERFORMANCE IN THE LIBYAN TRANSPORTATION INDUSTRY

This conceptual paper aims to examine the relationship between the knowledge management strategy and organizational performance in Libya transportation industry. Libya’s government policy proposals for public organisation reform have largely failed to encourage the development of information. The transport industry is suffering from a shortage of backward-integrated equipment. Most Arab nations have inherited their transparent authoritative practises from their previous founder legacies. This is despite the way in which the region needs knowledge management as never before due to the evolving way of global aggression. Also, the introduction and use of different information technologies in an enterprise will be the key to conducting knowledge management activities in the transport industry. The promotion of trust among members of intra- and inter-organizational teams is of primary concern for the establishment of a strong and sound knowledge base. It takes some time to establish a desired knowledge culture for the sharing of knowledge and exchange of knowledge. However, only a small section of the public would appreciate gains and any aspect of it could be overlooked by the rest. It should strive to develop the academic resources of the general public and involve people in basic leadership in general. JEL: L10; L25; L91 Article visualizations

DETERMINANTS OF KNOWLEDGE MANAGEMENT STRATEGIES ON ORGANIZATIONAL PERFORMANCE IN LIBYAN TRANSPORTATION INDUSTRY

The aim of this study is to identify the determinants of knowledge management strategies in the Libyan transportation industry for organizational performance. This study began to propose the research method through an Exploratory Factor Analysis (EFA), after proposing a testable conceptual framework, where the items of further research can have some light to move forward. For this analysis, the sample size was 529 and simple random sampling was employed. The results of this research indicate that the main aspects of organizational performance in the Libyan Transportation Industry are the knowledge management system, knowledge management process, knowledge management strategy, organizational performance. Through proposing an empirically validated research model that could be an important implementation tool for the success of the performance of the Transportation Industry, this research has added to established knowledge. JEL: L10; L25; L91 Article visualizations

Challenges and Opportunities of Health Care Supply Chain Management in the United States

This article explores current supply chain management challenges and initiatives and identifies problems that affect supply chain management success in the U.S. health-care industry. In addition, it investigates the impact of health care supply chain management (SCM) initiatives on the overall organizational effectiveness. The attitudinal results, as well as the performance results presented in this study support the claim of health care proponents that the SCM allows organizations to reduce cost, improve quality, and reduce cycle time, and leads to high performance

Video encryption using computation between H.264/AVC and AES encryption algorithm

With the advanced development of the Internet and multimedia, it is easier for digital data owners to transfer multimedia documents across the Internet. Therefore, multimedia security has become one of the most aspects of communications with the continuous increase in the use online transmission. Some applications, such as TV broadcast and military applications require a special and reliable secure storage or transmission to be completely secured against theft, alteration or misuse. Furthermore, videoconferencing has become a daily characteristic of financial businesses. As it saves time, effort, and travel expenses for large companies. In such applications, digital video is compressed to a low bit rate while it is stored or transmitted [1]. There are several important standards such as MPEG-l, MPEG-2/h.262 and MPEG-4 have been developed for video compression, but with the target to double the coding efficiency and high reliability in video transmission. The Moving Picture Expert Group (MPEG) and the Video Coding Expert Group (VCEG) have developed a new standard that promises to outperform the earlier MPEG-4 and H.263 standard. H.244/AVC provides the most current balance between the coding efficiency, implementation complexity and cos

Managing Transformers Risk through Failure Codification

The fast development and expansion of any service organizations which followed by increases in the asset numbers that’s need to have a proper maintenance strategy which should be cost effective. The aim of any strategy is to have a plan that contribute to improve asset performance by reducing downtime of asset failures. The aim of this paper is to set plan that determine the processes of creating failure code that can create a library of failure modes with its consequences and risk. This allow service provider to quickly understand the problem and any action that can be taken which have already proven by failure mode effect analysis. Also it’s identify most of the functional failures that might happened in the critical asset in the OETC’s network. In this study the transformer asset class was taken into the consideration for full failure mood and fault tree analysis. Defining failure codes can give specific instructions to complete a task to reduce the main time to wait in any failure from the total main time to repair, and any smiler failure mode from other assets the corrective action will remain consistent. The selective processes of creating a failure code give the organization a more holistic view of transformers risk which will be used to improve maintenance strategy by integrate those codes into work order system like CMMS

Communication system for controlling smart appliances using power line communication

icrocontroller-based master and slave units are designed with serial ports for communication with a computer and a transmission port to couple the signal to modems at both ends. The programming of the microcontrollers at either endfor formatting the data bits before they are sent down the power line and the development of software for putting in place the required master and slave protocols is presented. Coupling data signals to power line through interfacing circuits is a challenging task as power line and the communication system operate at two extremes -very lowfrequency and high powerfor the power line while communication is working at very highfrequency and very low voltage and current levels. Hence, the coupling circuit to be designed must be capable to withstand the high power system side in order to prevent a damage being done to the electronic side of the communication system. At the same time it must be reliable enough to make sure that data bits are transferred on to the power line with high accuracy. The interfacing circuits are designed and tuned to frequency contents making the bits of data. The frequency performance of these coupling circuits is presented, showing the range a power line can be used for communication ofsuch data

Data transfer over a low voltage power line for data acquisition and monitoring of electrical appliances

This article presents the design and implementation of a data communication system over a low voltage power line, meant primarily for applications of data acquisition from sites and monitoring of electrical appliances at the sites. The hardware developed, the interfacing required and the software used for implementation of the protocol are addressed. The developed system has been tested and results in a noise free and noisy power line system are reported. This paper reviews the previous studies on the power line as a transmission medium, proposes and evaluates the noble protocol for such applications