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The run-time for a battery-operated UPS depends on the type and size of batteries and rate of discharge, and the efficiency of the inverter. The total capacity of a lead–acid battery is a function of the rate at which it is discharged, which is described as Peukert's law. Manufacturers supply run-time rating in minutes for packaged UPS systems.
The UPS measures experimental molecular orbital energies for comparison with theoretical values from quantum chemistry, which was also extensively developed in the 1960s. The photoelectron spectrum of a molecule contains a series of peaks each corresponding to one valence-region molecular orbital energy level.
An executive summary (or management summary, sometimes also called speed read) is a short document or section of a document produced for business purposes. It summarizes a longer report or proposal or a group of related reports in such a way that readers can rapidly become acquainted with a large body of material without having to read it all.
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[2] [3] Martin Barnes (1968) proposed a project cost model based on cost, time and resources (CTR) in his PhD thesis and in 1969, he designed a course entitled "Time and Cost in Contract Control" in which he drew a triangle with each apex representing cost, time and quality (CTQ). [4] Later, he expanded quality with performance, becoming CTP.
United Parcel Service, Inc. (UPS) is an American multinational shipping & receiving and supply chain management company founded in 1907. [1] Originally known as the American Messenger Company specializing in telegraphs, UPS has expanded to become a Fortune 500 company [6] and one of the world's largest shipping couriers.
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DuPont's CPM was invented at roughly the same time as PERT. PERT Summary Report Phase 2, 1958. Initially PERT stood for Program Evaluation Research Task, but by 1959 was renamed. [4] It had been made public in 1958 in two publications of the U.S. Department of the Navy, entitled Program Evaluation Research Task, Summary Report, Phase 1. [7] and ...