منابع مشابه
1972 , Volume , Issue Nov-1972
It makes swept insertion and return loss measurements simultaneously, overa wide frequency range. TO THE MICROWAVE ENGINEER, an instru ment that measures insertion and return loss simultaneously, over a broad band, would be as useful as is the voltmeter to other electronic special ists, provided it is made practical in several im portant ways. • Its measurements must really refer to the micro...
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This paper describes simulated scenarios for power plant construction in the western United States. The simulations show construction lagging behind the growth in demand, allowing prices to climb to surprisingly high values during the years 2000 and 2001. When construction is completed, new power plants come on line in great number, allowing market prices to fall surprisingly rapidly in the yea...
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In the spring of 2003, I began to wonder about the history of the Bellman-Ford algorithm [CLRS01] for finding shortest paths in a graph. In particular, I was interested in understanding when Bellman’s name and Ford’s name became jointly associated with the algorithm. To research these questions, I made trips to the BBN Technologies and MIT libraries, did Web searches, and sent emails to univers...
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The Ford GT powertrain (see Figure 1) is an integrated system developed to preserve the heritage of the LeMans winning car of the past. A team of co-located engineers set out to establish a system that could achieve this result for today's supercar. Multiple variations of engines, transaxles, cooling systems, component locations and innovations were analyzed to meet the project objectives. This...
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Virginia Apgar worked as an obstetrical anesthesiologist, administering drugs that reduce women's pain during childbirth, in the mid-twentieth century US. In 1953, Apgar created a scoring system using five easily assessable measurements, including heart rate and breathing rate, to evaluate whether or not infants would benefit from medical attention immediately after birth. Apgar's system showed...
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ژورنال
عنوان ژورنال: American Anthropologist
سال: 1974
ISSN: 0002-7294,1548-1433
DOI: 10.1525/aa.1974.76.1.02a00210