Accession Number : AD0289573

Title :   HOMOTOPY THEORY IN GENERAL CATEGORIES

Corporate Author : BATTELLE MEMORIAL INST COLUMBUS OHIO

Personal Author(s) : HUBER,PETER J.

Report Date : 31 MAY 1961

Pagination or Media Count : 1

Abstract : TO BE RESOLVED, BT ADMT ALSO A NTURAL SEMISIMPLICIAL TRUURE. (ATHOR) -289 5740N4 +++Standard constrcion in abean tegories. -289 575IV. <, U s/ejh0 os pice 2.25 attelle memoial nt., Colums, Ohio. AN EVTION OF HIGH-PRESSURE OXYGEN SYTEMS. Final rept., 1 MAY >!-) UNE >< ON Equipment for ife Support in Aerospce, by J. V. BM, . Gooch and t. m. tiner. Sep 62, 85p. incl. illus. tales, 10 refs. (ontrt AF 3616)8267, PROJ. >+) (AMRL DR 62-102)unclsified repot deiptos: *Spceships, *Satellite vehicles, *Oxygen, *High pressure resech, VRION, hok resisance, Containation, toage, Heing, GAS FLOW, Preure veses, Gas cylinders, Sainless steel, Plais, PLASTIC SEAS. Identifiers: Oxygen systems.An invesigaion was made of the relative afety of 7500-psi gaseous oxygen sytes when sed as a sorce of brething oxygen in aerospce vehiles. Experiments were performed to invesigte the effes on the system of temperure, vibration, shok, extended storage, and conmination. lso tudied were the effects of high pressure, high-velocity flow, and heing due to apid compression. Evaluation of the resuts of this progm inates tht 7500-psi gseous oxygen sytems an be compratively afe if proper afety pretions are taken. nder conrolled opeations, the had of exploion bese of conaminaion can be overcome. sinless steel and onel loys were found to be aceptable mterias of contrucion. eflon and Kel-F compouns appear to be uitable for seals. Hydroarbons in minte concenion were found not to be dangerously reacive. ELECROSTC CHRGES UE TO HIGH-VELOTY FLOW WERE SL, BUT THERE WAS EVDENCE THT EROION COULD BE A SERIOS PROLEM. (ATHO)

Descriptors :   *ALGEBRAIC TOPOLOGY, *GROUPS (MATHEMATICS), SCHEDULING

Distribution Statement : APPROVED FOR PUBLIC RELEASE