immobilized enzymes. 1973-january 1983 (citations from the ntis data base)

the bibliography covers the industrial as well as the biochemical use of immobilized enzymes. enzyme technology, activity, stability, supports, fabrication, deactivation, and chemical reactions are cited. some of the applications for these enzymes include food processing and chemical manufacturing. (this updated bibliography contains 148 ..

radiation damage of laser materials. 1964-december 1982 (citations from the ntis data base)

laser beam damage to laser materials such as optical glass, glass fibers, alkali metal halides, metals, mirrors, optical coatings, dielectrics, semiconductors, and matrix materials is considered. many of these citations concern infrared laser damage to infrared optical materials. (this updated bibliography contains 229 citations, 7 of whi..

investigation of test methods, material properties and processes for solar cell encapsulants

the evaluation of potentially useful low cost encapsulation materials is discussed. the goal is to identify, evaluate, test and recommend encapsulant materials and processes for the production of cost effective, long life solar cell modules. technical investigations concerned the development of advanced cure chemistries for lamination typ..

method and apparatus for gripping uniaxial fibrous composite materials. / holding specimens for mechanical property testing

a strip specimen is cut from a unidirectional strong, brittle fiber composite material, and the surfaces of both ends of the specimen are grit-blasted. the specimen is then placed between metal load transfer members having grit-blasted surfaces. sufficient compressive stress is applied to the load transfer members to prevent slippage duri..

optical-fabrication technology: the present and a crystal-ball view into the future. paper no: 82-1853-cp

modern high technology optical surface manufacture makes use of one or more of four basic manufacturing technologies, loose abrasive grinding and polishing, single point diamond turning, multi-point (fixed-abrasive) machining, and position dependent material alteration. each of these processes is described and a general comparison made wi..

development of industrial production processes for components of solar heating systems, especially solar collectors

the project et 4051 has been carried out under the management of metallgesellschaft ag in cooperation with the companies dornier system gmbh, kloeckner + co., and schott + gen. the results of the different project parts are treated in a summarizing report. the development objects have been reached, so that we are now in a position to manu..

windblast arm protector assembly

the patent application describes a windblast arm protector assembly for use by an occupant of an open-type ejection seat of an aircraft the assembly includes, for each arm of the seat occupant, a full length fabric sleeve member which is independent of any garment body, which is a part of the seat's restraint system (rather than an item o..

development of selectively coated solar absorber on the basis of aluminum roll-bond-heat exchangers

a process has been developed for the production of selectively coated roll-bond absorbers of al 99.5 and almnzr alloys. the method may be compared with a two-stage anodizing process. the coating produced represents a nickel structure with average absorption values of alpha = 94 and emission values of epsilon = 14. the absorbers thus coate..

synthesis of metastable a-15 superconducting compounds by ion implantation and electron-beam annealing. technical progress report

the effects are studied of high-dose implantation of b and c into nb sub 3 al alloys. this particular system was chosen because of its superconducting properties. nb sub 3 al has a-high superconducting transition temperature t/sub c/ of 18 k and has the a-15 structure most high t/sub c/ materials seem to involve metastable materials and i..

improvements in the performance of solar energy piles using large-diameter silicon material. / improvements in the performance of solar energy piles using large-diameter silicon material--translation

in an effort to reduce the cost of solar energy piles (generator/cell), comparative analyses were undertaken to show that improvements in the production of large diameter silicon material depend on the selection of ingots according to: (1) the oxygenconcentration, for which a maximum level has been established; (2) the presence of lines o..