Results 41 to 50 of about 28,738 (129)

NASA thermionic-conversion program [PDF]

open access: yes
Current out-of-core emphases allow converter material and design freedoms previously prohibited by in-core nucleonic and geometric restrictions. As a result, potential improvements indicate possibilities for severalfold increases in efficiencies. The new
Lundholm, J. G., Morris, J. F.
core   +4 more sources

A Curious Source of Extended X-ray Emission in the Outskirts of Globular Cluster GLIMPSE-C01

open access: yes, 2009
We report the discovery of an unusual source of extended X-ray emission CXOU J184846.3-013040 (`The Stem') located on the outskirts of the globular cluster GLIMPSE-C01. No point-like source falls within the extended emission which has an X-ray luminosity
Abdo   +38 more
core   +1 more source

Micro-Faraday cup matrix detector for ion beam measurements in fusion plasmas

open access: yes, 2019
Atomic Beam Probe (ABP) is an extension of the routinely used Beam Emission Spectroscopy (BES) diagnostic for plasma edge current fluctuation measurement at magnetically confined plasmas.
Anda, Gábor   +11 more
core   +1 more source

The AMANDA Neutrino Telescope: Principle of Operation and First Results [PDF]

open access: yes, 1999
AMANDA is a high-energy neutrino telescope presently under construction at the geographical South Pole. In the Antarctic summer 1995/96, an array of 80 optical modules (OMs) arranged on 4 strings (AMANDA-B4) was deployed at depths between 1.5 and 2 km ...
AMANDA Collaboration   +67 more
core   +2 more sources

Modification of water application uniformity among closed circuit trickle irrigation systems [PDF]

open access: yes, 2010
The aim of this research was determine the ma- ximum application uniformity of closed circuit trickle irrigation systems designs. Laboratory tests carried out for Two types of closed circuits: a) One manifold for lateral lines or Closed cir-cuits with ...
Abd El-Hady, Mohamed A.   +4 more
core   +2 more sources

Ensemble-induced strong light-matter coupling of a single quantum emitter

open access: yes, 2020
We discuss a technique to strongly couple a single target quantum emitter to a cavity mode, which is enabled by virtual excitations of a nearby mesoscopic ensemble of emitters. A collective coupling of the latter to both the cavity and the target emitter
Brennen, Gavin K.   +8 more
core   +3 more sources

Flow Characteristics of a Porous Pipe Irrigation Lateral [PDF]

open access: yes, 1998
Porous pipe is useful for both surface and subsurface microirrigation systems. However very little information is available about its discharge uniformity and operating characteristics.
Lim, C. W.   +2 more
core  

Development of an Anti-collision Model for Vehicles

open access: yes, 2012
The Anti Collision device is a detection device meant to be incorporated into cars for the purpose of safety. As opposed to the anti collision devices present in the market today, this system is not designed to control the vehicle.
Zungeru, A. M.
core   +1 more source

The plasmatron: Advanced mode thermionic energy conversion [PDF]

open access: yes
A theory of the plasmatron was developed. Also, a wide range of measurements were obtained with two versatile, research devices. To gain insight into plasmatron performance, the experimental results are compared with calculations based on the theoretical
Hansen, L. K.   +2 more
core   +1 more source

Roughness Coefficient of Micro-irrigation Laterals [PDF]

open access: yes, 1994
A micro-irrigation system' must apply water and fertilizer uniformly over the entire field. However friction loss in pipes and fittings, and differences in elevation cause water pressure to vary.
Mohd Soom, Mohd Amin
core  

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