vacuum technique
31Air-free technique — Air free techniques refer to a range of manipulations in the chemistry laboratory for the handling of compounds that are air sensitive. These techniques prevent the compounds from reacting with components of air, usually water and oxygen; less… …
32Impulse excitation technique — PracticalThe impulse excitation technique is a nondestructive test method that uses natural frequency, dimensions and mass of a test piece to determine Young s modulus, Shear modulus, Poisson s ratio and damping coefficient.Dimensions and mass of …
33surface analysis — ▪ chemistry Introduction in analytical chemistry (chemistry), the study of that part of a solid that is in contact with a gas or a vacuum. When two phases of matter are in contact, they form an interface. The term surface is usually… …
34Free space — In classical physics, free space is a concept of electromagnetic theory, corresponding to a theoretically perfect vacuum, and sometimes referred to as the vacuum of free space. The definitions of the ampere and meter SI units are based upon… …
35frozen prepared food — Introduction any of the complete meals or portions of meals that are precooked, assembled into a package, and frozen for retail sale. They are popular among consumers because they provide a diverse menu and are convenient to prepare. A… …
36Gerard K. O'Neill — in 1977 Born February 6, 1927 …
37DUSHMAN, SAUL — (1883–1954), U.S. chemist and physicist. Dushman was born in Rostov, Russia, and was taken to Canada as a child of nine. He obtained a doctorate at the University of Toronto in 1912 and in the same year joined the General Electric Company… …
38Vakuumeinrichtung — vakuumo technika statusas T sritis Standartizacija ir metrologija apibrėžtis Mokslo ir technikos šaka, apimanti vakuumo gavimo būdus ir jo praktinį naudojimą. atitikmenys: angl. vacuum technique; vacuum technology vok. Vakuumeinrichtung, f;… …
39Vakuumtechnik — vakuumo technika statusas T sritis Standartizacija ir metrologija apibrėžtis Mokslo ir technikos šaka, apimanti vakuumo gavimo būdus ir jo praktinį naudojimą. atitikmenys: angl. vacuum technique; vacuum technology vok. Vakuumeinrichtung, f;… …
40vakuumo technika — statusas T sritis Standartizacija ir metrologija apibrėžtis Mokslo ir technikos šaka, apimanti vakuumo gavimo būdus ir jo praktinį naudojimą. atitikmenys: angl. vacuum technique; vacuum technology vok. Vakuumeinrichtung, f; Vakuumtechnik, f rus.… …
