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91Systems engineering — is an interdisciplinary field of engineering that focuses on how complex engineering projects should be designed and managed. Issues such as logistics, the coordination of different teams, and automatic control of machinery become more difficult… …
92Bipolar junction transistor — BJT redirects here. For the Japanese language proficiency test, see Business Japanese Proficiency Test. PNP …
93Heart sounds — Front of thorax, showing surface relations of bones, lungs (purple), pleura (blue), and heart (red outline). The location of best auscultation for each heart valve are labeled with M , T , A , and P . First heart sound: caused by atrioventricular …
94Welfare economics — Economics …
95William Sterling Parsons — William Sterling Parsons …
96Spirometry — TLC Total lung capacity: the volume in the lungs at maximal inflation RV Residual volume: the volume of air remaining in the lungs …
97Combustor — Flame stabilized by cyclone. A combustor is a component or area of a gas turbine, ramjet, or scramjet engine where combustion takes place. It is also known as a burner, combustion chamber or flame holder. In a gas turbine engine, the combustor or …
98Assumption based planning — is a post planning method that helps companies to deal with uncertainty. It is used to identify the most important assumptions in a company’s business plans, test these assumptions and think of hedging actions and what if scenarios. Assumption… …
99Plutonium — (pronEng|pluːˈtoʊniəm, symbol Pu, atomic number 94) is a rare radioactive, metallic chemical element. The most significant isotope of plutonium is 239Pu, with a half life of 24,100 years; this isotope is fissile and is used in most modern nuclear …
100research and development — Introduction abbreviation R and D, or R & D, in industry, two intimately related processes by which new products and new forms of old products are brought into being through technological innovation. Introduction and definitions …
