power personal systems
51Switched-mode power supply — switched mode power supply. A bridge rectifier B Input filter capacitors C Transformer D output filter coil E output filter capacitors ] A switched mode power supply, switching mode power supply or SMPS, is an electronic power supply unit (PSU)… …
52Environmental impact of wind power — Livestock ignore wind turbines,[1] and continue to graze as they did before wind turbines were installed. Compared to the environmental impact of traditional energy sources, the environmental impact of wind power is relatively minor. Wind power… …
53Paul D. Scully-Power — Infobox Astronaut name =Paul Desmond Scully Power type =U.S. Navy Payload Specialist nationality =American date birth =May 28, 1944 place birth =Sydney, Australia occupation =Oceanographer selection =1984 NASA Group time =8d 05h 23m mission =STS… …
54Local Exchange Trading Systems — (LETS) also known as LETSystems are local, non profit exchange networks in which goods and services can be traded without the need for printed currency. In some places, e.g. Toronto, the scheme has been called the Local Employment and Trading… …
55Bentley Systems — Infobox Company company name = Bentley Systems, Inc. company company type = Private foundation = Exton, Pennsylvania (1984) location = Exton, Pennsylvania key people = Keith Bentley, Co Founder Barry Bentley, Co Founder Greg Bentley, CEO industry …
56Media systems dependency theory — (MSD) was first proposed by Sandra Ball Rokeach and Melvin DeFleur in 1976, and consists of a complex system in which the media, individuals, their interpersonal environment, and the social environment have dependency relationships with each… …
57Monowai Power Station — Stumps from dead trees that were drowned when the lake level was raised in the 1920s …
58Comparison of the health care systems in Canada and the United States — Health spending per capita, in U.S. dollars PPP adjusted, with the U.S. and Canada compared amongst other first world nations. Comparison of the health care systems in Canada and the United States are often made by government, public health and… …
59Sequent Computer Systems — Sequent Computer Systems, or Sequent, was a computer company that designed and manufactured multiprocessing computer systems. They were among the pioneers in high performance symmetric multiprocessing (SMP) open systems, innovating in both… …
60Canadian and American health care systems compared — basis ($2724 and $2121 on a non adjusted basis); total U.S. spending was US$6096 vs. US$3137 (PPP) ($6096 and $3038 on a non adjusted basis).] Studies have come to different conclusions about the result of this disparity in spending. A 2007… …
