Textbooks play a pivotal role in language learning classrooms. The problem is, among a wide range of textbooks available, which one is more appropriate for a specific classroom and a group of learners. In order to evaluate ELT textbooks, theorists and writers have offered different kinds of evaluative frameworks based on a number of principles and criteria. This study evaluates one example of s...

Establishing peer-to-peer (P2P) file sharing for mobile ad hoc networks (MANET) requires the construction of a search algorithm for transmitting queries and search results as well as the development of a transfer protocol for downloading files matching a query. In this paper, we present a specialpurpose system for searching and file transfer tailored to both the characteristics of MANET and the...

Data centers are built to provide a highly available and scalable infrastructure on which the applications run. As enterprises grow, so do their application need, along with resources required for additional application-specific services. This increase in bottom line expense heightens the overall resource requirement. This paper provides solution to mitigate the impact of these expenses by prop...

When modern processors keep increasing the instruction window size and the issue width to exploit more instruction-level parallelism (ILP), the demand of larger physical register file is also on the increase. As a result, register file access time represents one of the critical delays and can easily become a bottleneck. In this paper, we first discuss the possibilities of reducing register pres...

Advances in computing and networking are generating a significant demand for video-on-demand (VOD) applications. In this paper, the condition for minimum blocking probability of a VOD system is derived. The optimal load-sharing requirement in such a system is found so that the minimum blocking probability is achieved. A combination of genetic algorithm and modified bin-packing algorithm is then...

We consider a two-tier content distribution system for distributing massive content, consisting of an infrastructure content distribution network (CDN) and a large number of ordinary clients. The nodes of the infrastructure network form a structured, distributedhash-table-based (DHT) peer-to-peer (P2P) network. Each file is first placed in the CDN, and possibly, is replicated among the infrastr...

The nearly omnipresence of the Internet and the steady increase of wireless computing and mobile devices require highly dynamic adaptable distributed system architectures. Building such architectures needs a combination of key concepts from component technology and distributed systems. Mobile agents provide this combination. We use mobile agents as the building blocks of a component-based syste...

Domain-specific generators will increasingly rely on graphical languages for declarative specifications of target applications. Such languages will provide front-ends to generators and related tools to produce customized code on demand. Critical to the success of this approach will be domain-specific design wizards, tools that guide users in their selection of components for constructing partic...

Introdouction: Canal length measurement is essential for proper endodontic treatment. Any error or miscalculation in working length determination, particularly in curved canals, can result in complications during or after root canal therapy. Digital radiography has enabled accurate measurement of curved canal length. In this study, we evaluated the accuracy of calibration of a complementary m...