3,787 research outputs found
Characteristics of high-tension magnetos
This report gives the results of an investigation made into the fundamental physical characteristics of high-tension ignition magnetos, and also describes the methods used for measuring the quantities involved
An implementation plan for priorities in solar-system space physics
The scientific objectives and implementation plans and priorities of the Space Science Board in areas of solar physics, heliospheric physics, magnetospheric physics, upper atmosphere physics, solar-terrestrial coupling, and comparative planetary studies are discussed and recommended programs are summarized. Accomplishments of Skylab, Solar Maximum Mission, Nimbus-7, and 11 other programs are highlighted. Detailed mission plans in areas of solar and heliospheric physics, plasma physics, and upper atmospheric physics are also described
Solving magnetostatic field problems with NASTRAN
Determining the three-dimensional magnetostatic field in current-induced situations has usually involved vector potentials, which can lead to excessive computational times. How such magnetic fields may be determined using scalar potentials is reviewed. It is shown how the heat transfer capability of NASTRAN level 17 was modified to take advantage of the new method
The Effect of Fuel Consumption on Cylinder Temperatures and Performance of a Cowled Wright J-5 Engine
Given here are the results of tests made to determine the effect of fuel consumption on the cylinder temperatures and the performance of a cowled Wright J-5 engine. The results of these tests indicate that enriching the mixture by increasing the carburetor size results in a reduction in cylinder head and barrel temperatures. The cylinders shielded by the magnetos or the points on the cylinder that do not receive a free flow of cooling air increase most rapidly in temperature as the mixture is leaned. A free flow of air past the cylinders is essential for satisfactory operation on a lean mixture. The results of these tests show that the Wright J-5 engine can withstand severe temperatures for short periods of operation. The test results also show to what extent destructive temperatures may be avoided by enriching the mixture
Spartan Daily, January 20, 1954
Volume 42, Issue 68https://scholarworks.sjsu.edu/spartandaily/11963/thumbnail.jp
Spartan Daily, January 20, 1954
Volume 42, Issue 68https://scholarworks.sjsu.edu/spartandaily/11963/thumbnail.jp
Materiais para as tecnologias da energia: desafios e o papel da reciclagem
A indústria da energia, nomeadamente as tecnologias renováveis e de baixo carbono, necessita de matérias-primas, algumas raras e mesmo consideradas críticas, para produzir os materiais de que necessita para o seu desenvolvimento. Muitos desses materiais são escassos na Europa, colocando-a numa posição de grande dependência e fragilidade. A utilização dos resíduos como fontes secundárias dessas matérias-primas é uma das medidas essenciais para enfrentar este desafio. Neste artigo discute-se este tema relevante, descrevendo-se algumas tecnologias e os materiais que utilizam, e apresentam-se algumas medidas que devem ser implementadas para fazer face a este problema
Suprathermal particle addition to solar wind pressure: possible influence on magnetospheric transmissivity of low energy cosmic rays?
Energetic (suprathermal) solar particles, accelerated in the interplanetary
medium, contribute to the solar wind pressure, in particular during high solar
activity periods. We estimated the effect of the increase of solar wind
pressure due to suprathermal particles on magnetospheric transmissivity of
galactic cosmic rays in the case of one recent solar event
Report from ionospheric science
The general strategy to advance knowledge of the ionospheric component of the solar terrestrial system should consist of a three pronged attack on the problem. Ionospheric models should be refined by utilization of existing and new data bases. The data generated in the future should emphasize spatial and temporal gradients and their relation to other events in the solar terrestrial system. In parallel with the improvement in modeling, it will be necessary to initiate a program of advanced instrument development. In particular, emphasis should be placed on the area of improved imaging techniques. The third general activity to be supported should be active experiments related to a better understanding of the basic physics of interactions occurring in the ionospheric environment. These strategies are briefly discussed
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