Results 91 to 100 of about 5,058 (187)

NASA Tech Briefs, November 2013 [PDF]

open access: yes
Topics include: Cryogenic Liquid Sample Acquisition System for Remote Space Applications; 5 Spatial Statistical Data Fusion (SSDF); GPS Estimates of Integrated Precipitable Water Aid Weather Forecasters; Integrating a Microwave Radiometer into Radar ...

core   +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

Performance Simulation of Three-Stage Auto-Cascade Refrigeration System Based on R1234yf/R116/R14 Refrigerant Mixture

open access: yesZhileng xuebao
To study the performance of a new environmentally friendly refrigerant mixture, the simulation software Aspen Plus was used to simulate the compressor discharge temperature, compression work, evaporating temperature, system cooling capacity, and COP of ...
Liu Yang Rui Shengjun Cao Jiaxu He Tao
doaj  

Osteoporosis and Vertebral Column. [PDF]

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

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

NASA patent abstracts bibliography: A continuing bibliography. Section 1: Abstracts (supplement 43) [PDF]

open access: yes
s are provided for 128 patents and patent applications entered into the NASA scientific and technical information system during the period Jan. 1993 through Jun. 1993.

core   +1 more source

Pulmonary Targeting of Levofloxacin Using Microsphere-Based Dry Powder Inhalation. [PDF]

open access: yesPharmaceuticals (Basel), 2022
Al Hagbani T   +6 more
europepmc   +1 more source

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