Integrated Safety Program for the Nuclear Electric Propulsion Space Test Program

1994 ◽  
Author(s):  
Albert C. Marshall ◽  
William F. Mehlman ◽  
G. Kompanietz ◽  
Mohamed S. El-Genk ◽  
Mark D. Hoover
Keyword(s):  
Electric Propulsion ◽  
Test Program ◽  
Safety Program

Science Plan for the Nuclear Electric Propulsion Space Test Program (NEPSTP)

1993 ◽  
Author(s):  
B. MAUK ◽  
P. BYTHROW ◽  
N. GATSONIS ◽  
R. MCNUTT, JR.
Keyword(s):  
Electric Propulsion ◽  
Test Program

scholarly journals Behavior tests of a new form of propulsion after ship reconstruction

2020 ◽  
Vol 70 (2) ◽  
pp. 47-52
Author(s):  
Enis Dauti ◽  
Dragan Trifković
Keyword(s):  
Diesel Engine ◽  
Electric Propulsion ◽  
Test Results ◽  
Test Program ◽  
Stopping Distance ◽  
Shaft Power ◽  
The Subject ◽  
Ship Operation ◽  
Circle Diameter ◽  
Ship Speed

The subject of this paper is a detailed qualitative analysis maneuvering and propulsion characteristics of a special purpose river vessel "KOZARA" River war flotillas of the Serbian Army, after reconstruction and modernization. With the modernization of the ship, among other things, the old propulsion group with a classic diesel engine propulsion was replaced by a new diesel electric propulsion. In order to assess the justification of this replacement from the aspect of expected improvements of shunting and propulsion characteristics of the ship, it was necessary to develop and implement a test program and compare the results with available test results of the ship with the old propulsion group in earlier periods of ship operation. The results of measuring the basic maneuvering characteristics: ship speed, stopping distance and turning circle diameter, as well as propulsion characteristics: propeller shaft power, axial and torsional vibrations after six years of operation of the new propulsion confirmed all the advantages of diesel electric propulsion over classic diesel engine propulsion. However, certain problems have been noticed in terms of maintaining this complex plant, and proposed measures to overcome them.

Communications experiment for the Nuclear Electric Propulsion Space Test Program (NEPSTP)

1993 ◽  
Author(s):  
ROBERT BOKULIC ◽  
NIKOLAOS GATSONIS ◽  
PETER BYTHROW ◽  
BARRY MAUK
Keyword(s):  
Electric Propulsion ◽  
Test Program

Rendez vous with Saturn's rings

1984 ◽  
Vol 75 ◽  
pp. 743-759 ◽  
Author(s):  
Kerry T. Nock
Keyword(s):  
Solar Energy ◽  
Electric Propulsion ◽  
Power Source ◽  
Propulsion System ◽  
Low Thrust ◽  
Ring Plane ◽  
The Earth ◽  
Total Impulse ◽  
Saturn's Rings

ABSTRACTA mission to rendezvous with the rings of Saturn is studied with regard to science rationale and instrumentation and engineering feasibility and design. Future detailedin situexploration of the rings of Saturn will require spacecraft systems with enormous propulsive capability. NASA is currently studying the critical technologies for just such a system, called Nuclear Electric Propulsion (NEP). Electric propulsion is the only technology which can effectively provide the required total impulse for this demanding mission. Furthermore, the power source must be nuclear because the solar energy reaching Saturn is only 1% of that at the Earth. An important aspect of this mission is the ability of the low thrust propulsion system to continuously boost the spacecraft above the ring plane as it spirals in toward Saturn, thus enabling scientific measurements of ring particles from only a few kilometers.

Precision and bias in quantitative EDS: ASTM results

1992 ◽  
Vol 50 (2) ◽  
pp. 1654-1655
Author(s):  
John J. Friel
Keyword(s):  
Stainless Steel ◽  
Quantitative Analysis ◽  
Mechanical Alloy ◽  
Dead Time ◽  
Test Program ◽  
Round Robin Test ◽  
Wide Range ◽  
American Society ◽  
Takeoff Angle ◽  
Standardless Analysis

Committee E-04 on Metallography of the American Society for Testing and Materials (ASTM) conducted an interlaboratory round robin test program on quantitative energy dispersive spectroscopy (EDS). The test program was designed to produce data on which to base a precision and bias statement for quantitative analysis by EDS. Nine laboratories were sent specimens of two well characterized materials, a type 308 stainless steel, and a complex mechanical alloy from Inco Alloys International, Inconel® MA 6000. The stainless steel was chosen as an example of a straightforward analysis with no special problems. The mechanical alloy was selected because elements were present in a wide range of concentrations; K, L, and M lines were involved; and Ta was severely overlapped with W. The test aimed to establish limits of precision that could be routinely achieved by capable laboratories operating under real world conditions. The participants were first allowed to use their own best procedures, but later were instructed to repeat the analysis using specified conditions: 20 kV accelerating voltage, 200s live time, ∼25% dead time and ∼40° takeoff angle. They were also asked to run a standardless analysis.

FDA Plans to Strengthen Drug Safety Program

2005 ◽  
Vol 36 (1) ◽  
pp. 43
Author(s):  
ELIZABETH MECHCATIE
Keyword(s):  
Drug Safety ◽  
Safety Program
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