The use of distributed generation in microgrid systems is becoming a popular way to provide a reliable source of electricity to critical loads. Efforts in disaster relief operations and national defense applications require a mobile, scalable power grid that is easily constructed and robust enough to handle radical system changes. These microgrids are usually built using low-inertia generators ...

this paper proposes a novel approach for coherent generators online clustering in a large power system following a wide area disturbance. an interconnected power system may become unstable due to severe contingency when it is operated close to the stability boundaries. hence, the bulk power system controlled islanding is the last resort to prevent catastrophic cascading outages and wide area bl...

This paper explores the implications of integrating flexible module generation into a compiler for FPGAs. The objective is to improve the programmability of FPGAs, or in other words, the productivity of the FPGA programmer. We describe (1) the module generation library PAM-Blox II, the second generation of object-oriented module generators in C++, targeted at computing with FPGAs, and (2) examp...

background: exposure to loud music from sources such as portable music players (pmp), especially among adolescents, can lead to noise-induced hearing loss. the aims of this study are as follows: 1) investigate the prevalence of headphone use in iranian university students by assessing their behavior, 2) determine the type of headphones used, and 3) ascertain the type of music player used. metho...

certain conditions limit the independence of deprived people. however, those conditions do not limit the right of these people to receive dental care. portable dental units may make it possible for the deprived and elderly to receive the care they deserve in more areas. this study aimed to explore dentists' perceptions of the use of portable dental units in community outreach programs as a prec...

background and objective: obstructive sleep apnea (osa) is a disease with serious consequences. many portable devices have been developed to overwhelm some of limitations in the accessibility of the gold standard test for osa, polysomnography (psg). this study aimed to determine diagnostic accuracy of a portable sleep apnea screener against psg in patients of a sleep clinic. materials and metho...

objectives this study examined 125i concentrations in the edible parts of five types of plants from different locations on farms with a similar climate. near zahedan, iran. background radioiodine 125i is an environmental contaminant that humans may consume in edible plants. the characteristics of 125i in plants are poorly understood. materials and methods the experiments used a mini-column appr...

Portable neutron generators are one of the most widespread sources fast neutrons for different applications, from activation analysis to quantitative estimation fissile and fertile materials in radioactive waste packages. New techniques based on these devices have been developed homeland security, e.g. interrogations packages suspected containing substances such as explosives. When using portab...