Results 91 to 100 of about 8,801 (231)

Retention and application of Skylab experiences to future programs [PDF]

open access: yes
The problems encountered and special techniques and procedures developed on the Skylab program are described along with the experiences and practical benefits obtained for dissemination and use on future programs.
Gillespie, V. G., Kelly, R. O.
core   +1 more source

A Production-oriented Approach in Electromagnetic Forming of Metal Sheets [PDF]

open access: yes, 2006
parts per unit. Especially demands of modern lightweight design seem to be hard to satisfy by stretching conventional production methods. Thus, it is necessary to find new approaches.
Koch, T.   +4 more
core  

Selection and coordination of surge arresters for switching transient mitigation in photovoltaic power plants [PDF]

open access: yes, 2017
: Photovoltaic energy generation has become a popular renewable alternative to conventional energy generation that utilise fossil fuels. However, given the diversity and complexity of these PV plants, it is imperative that such plant equipment be ...
Bokoro, P.   +3 more
core  

STS-46 Space Shuttle mission report [PDF]

open access: yes
The STS-46 Space Shuttle Program Mission Report contains a summary of the Orbiter, External Tank (ET), Solid Rocket Booster/Redesigned Solid Rocket Motor (SRB/RSRM), and the Space Shuttle main engine (SSME) subsystem performance during the forty-ninth ...
Fricke, Robert W.
core   +1 more source

Switchgear, switchboard apparatus, relays and industrial controls : 1998 [PDF]

open access: yes, 2000
Current industrial report. Contains annual data for switchgear, switchboard apparatus, relays and industrial controls produced in the United ...

core  

Effect of the contact diameter on the vacuum arc plasma parameter in high current vacuum arcs

open access: yesAIP Advances
The reduction of sulfur hexafluoride utilization constitutes a pressing global challenge in the development of eco-sustainable power apparatuses. Developing vacuum circuit breakers for transmission-level applications represents a strategic solution to ...
Zaiqin Zhang   +5 more
doaj   +1 more source

Architecture, Voltage and Components for a Turboelectric Distributed Propulsion Electric Grid [PDF]

open access: yes, 2015
The development of a wholly superconducting turboelectric distributed propulsion system presents hide unique opportunities for the aerospace industry.
Armstrong, Michael J.   +6 more
core   +1 more source

Investigation of vacuum arc ignition characteristics and erosion morphology microstructure characteristics of CuCr55 electrode contact materials

open access: yesAIP Advances
Copper–chromium alloy material, as one of the most important electrode contact materials in the field of electrical contact, has been widely used in vacuum interrupters.
Siyuan Liu   +3 more
doaj   +1 more source

Switchgear, switchboard apparatus, relays and industrial controls : 1999 [PDF]

open access: yes, 2000
Current industrial report. Contains annual data for switchgear, switchboard apparatus, relays and industrial controls produced in the United ...

core  

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