Results 51 to 60 of about 28,738 (129)

Design of Drip Irrigation Lines [PDF]

open access: yes, 1974
This report presents a simple way of estimating friction drop along the lateral line, pressure distribution along the drip line, and variation of emitter discharge along the lateral.
Gitlin, Harris M., Wu, I-Pai
core  

An integrated approach to rotorcraft human factors research [PDF]

open access: yes
As the potential of civil and military helicopters has increased, more complex and demanding missions in increasingly hostile environments have been required.
Bucher, Nancy M.   +4 more
core   +1 more source

Development of an image converter of radical design [PDF]

open access: yes
A long term investigation of thin film sensors, monolithic photo-field effect transistors, and epitaxially diffused phototransistors and photodiodes to meet requirements to produce acceptable all solid state, electronically scanned imaging system, led to
Farnsworth, D. L., Irwin, E. L.
core   +1 more source

Investigations of electron emission characteristics of low work function surfaces Quarterly report, 28 Sep. - 27 Dec. 1966 [PDF]

open access: yes
Coadsorption of cesium and fluorine on tungsten, and analysis of mechanisms leading to decay of field emission current from low work function zirconium/oxygen coated tungsten ...
Bell, A. E.   +3 more
core   +1 more source

Electro-optic architecture for servicing sensors and actuators in advanced aircraft propulsion systems [PDF]

open access: yes
A detailed design of a fiber optic propulsion control system, integrating favored sensors and electro-optics architecture is presented. Layouts, schematics, and sensor lists describe an advanced fighter engine system model.
Glasheen, W. M., Poppel, G. L.
core   +1 more source

The NASA thermionic-conversion (TEC-ART) program [PDF]

open access: yes
The current emphasis is on out-of-core thermionic conversion (TEC). The additional degrees of freedom offer new potentialities, but high-temperature material effects determine the level and lifetime of TEC performance: New electrodes not only raise ...
Morris, J. F.
core   +1 more source

Digital computer simulation of inductor-energy-storage dc-to-dc converters with closed-loop regulators [PDF]

open access: yes
The simulation of converter-controller combinations by means of a flexible digital computer program which produces output to a graphic display is discussed. The procedure is an alternative to mathematical analysis of converter systems.
Ohri, A. K.   +3 more
core   +1 more source

Nanophotonic neural probes for in vivo photostimulation, electrophysiology, and microfluidic delivery. [PDF]

open access: yesMicrosyst Nanoeng
Mu X   +13 more
europepmc   +1 more source

Analysis of electric propulsion electrical power conditioning component technology. Volume 1 - Data bank Final report [PDF]

open access: yes
Analysis of electric propulsion electric power conditioning component technology - data ...
Jalichandra, P., Klynn, L., Shattuck, R.
core   +1 more source

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