An Implementation of the Object-Oriented Concurrent Programming Language SINA

SINA is an object-oriented language for distributed and concurrent programming. The primary focus of this paper is on the object-oriented concurrent programming mechanisms of SINA and their implementation. This paper presents the SINA constructs for concurrent programming and inter-object communication, some illustrative examples and a message-based implementation model for SINA that we have used in our current implementation

Characterization of Friction Surfaced Coatings of AISI 316 Tool over High-Speed-Steel Substrate

Nowadays friction surfacing (FS) has become a popular solid state surface coating technology suitable for a range of substrates. The technology has the ability to produce coatings with marginal dilution and good metallurgical bonding. The present study has aimed at producing a single-track and a three-track overlapping coatings on high-speed steel substrates using an AISI 316 consumable rod. Microhardness of coatings was examined by a Vickers micro hardness tester. Coatings of all the friction surfaced samples in as-deposited condition showed significant hardness. The infrared thermography showed that the peak temperature achieved by the AISI 316 coating was about 1020 ͦ C. The coatings, thus attained, were further analysed for their microstructural features and interfacial characteristics by using FE-SEM. The EDX analysis showed the presence of nickel, chromium and oxygen, which indicates the formation of oxide compounds. The formation of AISI 316 deposits on the HSS substrate and the effect of coating overlapping are discussed in this article

Communication, scheduling and resource management in SINA

In this article we present the object-oriented constructs for communication and concurrent programming in the SINA programming language. The object encapsulation mechanism of SINA allows implementations of hierarchically structured resource management systems and alleviates some of the problems that arise in using nested monitor structures [13,28,31]. SINA supports capability-based communication between objects using object pointers. This permits building systems in which the communication topology can change dynamically. Using these constructs we present object-oriented solutions to various problems in interprocess communication, scheduling, and resource management. A number of examples of such problems have been implemented and tested using our SINA system on the SUN 3 workstations

"GREEN DENTISTRY-CLEAN DENTISTRY"

Abstract : Eco-dentistry or "green dentistry" refers to the delivery of oral health care and dental treatments using technologies, procedures and materials that promote environmental and planetary health. Eco-dentistry, a term trademarked by the Eco-Dentistry Association (EDA), incorporates high-tech innovations that enhance efficiency and effectiveness while reducing the amount of waste and pollution in the environment. Green dentistry reduces waste and pollution, saves energy, water and money, incorporates high tech innovations and focuses on wellness and integrative practices. It is the wave of the future