This paper discusses grounding practices used on electric distribution systems above 600 Volts. In particular, the paper concentrates on the three-phase fourwire, multi-grounded neutral system that is extensively used in North America. The paper addresses the benefits of the multi-grounded power system and makes comparisons with other grounding system designs including ungrounded; three-wire si...

stray dogs are considered as an important health problem in societies because they can carry dangerous diseases such as hydatidosis, toxocariasis and coenurus cerebralis to humans and animals. therefore, the study of helminthes infections in all parts of iran for evaluation of infection state, and provision of the infection control programs is essential. the aim of this study, was to determine ...

canids are reservoir for some zoonoses helminthic disease. they are one of main public health problem. theaim of this study was to ascertain frequency of gastrointestinal helminthic infection of stray dogs in zabol city,southeaster of iran. in this descriptive study, 30 stray dogs were euthanized, intestine was removed by necropsy.then, the intestines was opened by scalpel and their contents pa...

in this study 74 stray dogs including 39 females and 35 males with cooperation of dog killing team of municipality were killed, examined macroscopically and microscopically in kerman city from 1992 to 1993. taenia hydatigena was the most prevalent helminth observed in 57 dogs (77%), dipylidium caninum in 13 dogs (17.6%), echinococcus granulosus in 5 dogs (6.8%) and toxocara canis in one dog (1....

Power transformers represent the largest portion of capital investment in transmission and distribution substations. In addition, power transformer outages have a considerable economic impact on the operation of an electrical network. One of the most important parameters’ governing a transformer’s life expectancy is the hot-spot temperature value. Due to under estimation of stray losses in powe...

<span>Recently, <span lang="EN-US">the care of stray cats has become an important matter, given the difficulty for these animals to obtain food or water, whether in wild remote areas, and this may cause death animals. The aim work is design implement a low-cost feeding system feral indoor cats. controlled by jetson nano arduino mega 2,560. cat detection feeder built using single sho...

Leptospira reactivity in stray and household dogs in Campeche as well as associated risk factors to the seropositivity in household dogs have been herein determined. The survey included 323 dogs, 142 of which were stray dogs and 181 household dogs. Nine Leptospira interrogans serovars were tested by the microagglutination test. Reactivity was 21.3 % (69/323), 17.2 % corresponded to household do...

Abstract: In order to analyze the distribution rules and influence of stray current on subway rectangulartunneland subway Shield tunnel, threedimensional models were built separately. By changing the values of carry-current, ansys was used toanalyzeunder different geological conditions.Simulations show that the potential attenuation is nonlinear from the subway tunnel to the surrounding undergr...