Results 71 to 80 of about 4,794 (176)

Osteoporosis and Vertebral Column. [PDF]

open access: yesIndian J Orthop, 2023
Chaddha R   +3 more
europepmc   +1 more source

Turbopumps for cryogenic upper stage engines [PDF]

open access: yes
Small, high-performance LO2 and LH2 turbopump assembly configurations were selected, detail designs were prepared and two of each unit were fabricated with each unit consisting of pump, turbine gas generator, and appropriate controls.
Csomor, A.   +2 more
core   +1 more source

Investigations on Performance of an Auto-Cascade Absorption Refrigeration System Operating with Mixed Refrigerants [PDF]

open access: yes, 2016
Waste heat can be well utilized in absorption refrigeration systems. The auto-cascade absorption refrigeration system couldreach a lower temperature than traditional one because the non-azeotropic mixed refrigerants were used. In this paper, performances
Chen, Guangming   +4 more
core   +1 more source

Energy and infrastructure policies for mitigating air pollution in Mexico City [PDF]

open access: yes, 1997
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1997.Includes bibliographical references (p.
Leautaud, Juan Alberto   +1 more
core  

Small business innovation research. Abstracts of 1988 phase 1 awards [PDF]

open access: yes
Non-proprietary proposal abstracts of Phase 1 Small Business Innovation Research (SBIR) projects supported by NASA are presented. Projects in the fields of aeronautical propulsion, aerodynamics, acoustics, aircraft systems, materials and structures ...

core   +1 more source

Vacuum technology and space simulation [PDF]

open access: yes
Manual on vacuum technology and space ...
Holkeboer, D. H.   +3 more
core   +1 more source

Metabolic phenotypes of standard and cold-stored platelets. [PDF]

open access: yesTransfusion, 2020
D'Alessandro A   +6 more
europepmc   +1 more source

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