Showing papers by "Applied Science Private University published in 1979"
TL;DR: Two new language mechanisms are presented: one for expressing the static structure and access rights of parallel systems, the other for controlling dynamic access to shared objects (monitors).
Abstract: An important component of a programming language for writing operating systems, or other large parallel systems, is the set of access control facilities. Two principles for access control, expressive power and access validation, are discussed. Then two new language mechanisms are presented: one for expressing the static structure and access rights of parallel systems, the other for controlling dynamic access to shared objects (monitors). The use of the proposed mechanisms is illustrated by examples including a file system. Finally, the relationships between the mechanisms, access validation, and the safety problem are discussed.
23 citations
TL;DR: In this article, the problem of measuring aggregate technology progress and capital cost of gas-fired, coal-fired and nuclear power plants using the classical learning curve was treated, and a regression analysis on disclosed information demonstrates the strength of the technique.
16 citations
TL;DR: In this article, the effect of external microwave radiation on an implanted cardiac pacemaker was studied based on clinical case history indicating an effective blocking in a patient of the implanted pacing activity due to microwave radiation, the process by which microwave energy may cause this observed effect was analyzed.
Abstract: The effect of external microwave radiation on an implanted cardiac pacemaker is studied. Based on a clinical case history [1] indicating an effective blocking in a patient of the implanted pacing activity due to microwave radiation, the process by which microwave energy may cause this observed effect is analyzed. The problem is formulated in terms of thermoelastic theory in which the absorbed microwave energy of the biomedium containing the implanted pacemaker represents a volume of heat source and a resulting thermoelastic motion sets up acoustic waves; these in turn, cause microphonic oscillations in the pacemaker which correspond to the noisy high-frequency artifact recorded on the ECG tracings [11.
3 citations