High-energy particle acceleration is observed to proceed in a diverse variety of astrophysical sites
NASA Technical Reports Server (NTRS)
... (Author). Descriptors : (*POSTURE(PHYSIOLOGY), ACCELERATION), HUMAN BODY, HUMANS, MEASUREMENT, ACCELERATION TOLERANCE ...
DTIC Science & Technology
... Title : An Investigation of Accelerating Mechanisms in a Plasma Focus Relevant to Interrupting Switches. Descriptive Note : Rept. no. ...
Long time mechanical and thermal stability of polymeric materials predicted from accelerated testing
Solar flare data are examined with an eye to seeing if they suggest collective acceleration of ions. That, in fact, seems to be the case. The collective acceleration mechanism of Gershtein is reviewed and the possibilities of the mechanism are discussed.
DOE Information Bridge
This paper discusses the acceleration of charged particles by electromagnetic fields, i.e., by fields that are produced by the motion of other charged particles driven by some power source. The mechanisms that are discussed include: Ponderamotive Forces, Acceleration, Plasma Beat Wave Acceleration, Inverse Free ...
A phenomenological account of particle acceleration is provided along with a detailed summary of the current status of theoretical studies of particle acceleration. Problems are presented which remain when specific mechanisms and observations are confronted. The following specific topics are addressed: solar particle ...
Energy Citations Database
Mar 1, 2011... the Fermi mechanism, the betatron mechanism, acceleration models, plasma instabilities, two-stage acceleration, propagation mechanisms, ...
NASA Website
The mechanisms which ultimately limit the voltage of large accelerators are discussed in the light of the operating experiences of the NSF tandem. 3 refs.
National Technical Information Service (NTIS)
... diode gap by the magnetic field from the ... mechanisms are accelerated across the diode gap toward ... depend on the difference in crossing times of ...
... Accession Number : ADA529816. Title : Effect of Acceleration Frequency on Spatial Orientation Mechanisms. Descriptive Note : Technical rept. ...
The characteristics of dayside electron acceleration regions, or inverted V's, and the nature of the
... ACCELERATED CORROSION TESTING OF GRAPHITE/EPOXY COMPOSITES AND ALUMINUM ALLOY MECHANICALLY-FASTENED JOINTS ...
degradation models and prediction of remaining useful life. The accelerated aging system is designed for the exploration of intrinsic degradation mechanisms ...
... STRENGTH(MECHANICS), PARTICLES, BONDING, BINDERS, CRYOGENICS, BRAZING ALLOYS, FUSION(MELTING), HIGH ACCELERATION ...
A brief, subjective review is given of mechanisms that may be limiting electrostatic accelerator tubes to present levels of performance. Suggestions are made for attacking these limitations with the purpose of stimulating the thinking of designers and users of electrostatic accelerators.
... Pseudoresonant Laser Wakefield Acceleration ... these mechanisms have practical limits to the max - imum length of the acceleration regions. ...
The general principle of charged particle acceleration in space and laboratory plasmas is illustrated by a discussion of particular types of acceleration mechanisms which can be classified as either deterministic processes or stochastic processes. Acceler...
This bibliographic study has been made from the available documents on the nowadays development of the accelerator breeder concept, aimed to fissile material production. This note describes briefly the linear accelerator principles and the mechanisms exis...
An inertial locking mechanism of a seatbelt is designed to prevent further seatbelt extension when it exceeds an acceleration threshold. The acceleration threshold varies with the orientation of the mechanism and direction of acceleration. A setup and procedure were created to test the ...
PubMed
Apr 15, 1998 ... Feasibility of Using Neural Network Models to Accelerate the Testing of Mechanical Systems. Verification testing is an important aspect of ...
Jan 23, 2001 ... Mechanical tests with no local package heating will significantly overestimate the life of solder joints. Local heating will accelerate life ...
The report presents new measurements of mechanical impedance in the transient acceleration environment and compares the results with previous measurements made in the steady state sinusoidal acceleration environment. Although there are some discrepancies ...
This paper discusses the acceleration of charged particles by electromagnetic fields, i.e., by fields that are produced by the motion of other charged particles driven by some power source. The mechanisms that are discussed include: Ponderamotive Forces, ...
Effect of Stable Phase Formation from Unstable Phase on Densification Acceleration of Amorphous Powder Produced by Mechanical Alloying
NASA Astrophysics Data System (ADS)
Accelerated Testing of Space Mechanisms AUTHOR(S): S. Frank Murray and Hooshang Heshmat REPORT DATE: December 1995. FUNDING NUMBERS: WU-323-16-04 ...
... radio and X-ray observations, the Fermi mechanism, the betatron mechanism, acceleration models, plasma instabilities, two-stage acceleration, ...
A radio-frequency quadrupole (RFQ) linear accelerator has been constructed and placed in operation on the Los Alamos National Laboratory accelerator test stand (ATS). This accelerator uses an evacuated rf manifold to distribute rf excitation from the 425-...
The acceleration of an electron beam in a double radial lines system excited by an external pulse generator has been accomplished and the basic mechanisms of the processes of obtaining the accelerating fields and of the acceleration of the beam have been investigated. (AIP)
The mechanical behavior of M30 propellant subjected to an acceleration greater than 10,000 g has been studied in an ultracentrifuge. Deformation of the propellant is measured as a function of maximum applied stress. Above an acceleration threshold, recove...
Quantum mechanical arguments are used to analyze the axial and transverse motion of particles in a linear accelerator. The smallest possible energy spread and transverse dimensions of the beam are determined. Some features of the focusing of quantum mechanical wave packets of accelerated particles are considered in ...
A pulsed inductive accelerator was operated using mercury vapor as a propellant. The purpose of the report is to demonstrate that the induction acceleration mechanism can work satisfactorily for low energy inputs. The results indicate that a low power pul...
... clamps and compared to a standard non-clamped polyurethane connector in accelerated life testing. It was determined that a mechanical clamp ...
... Accession Number : AD0760613. Title : Mechanical Impedance of Supine Humans under Sustained Acceleration. Corporate ...
... in this report utilize anatomical, metabolic or biochemical measurennts to analyze the mechanism(s) of amphetamine accelerated recoveri fron the ...
Mechanical tests with no local package heating will signicantly overestimate the life of solder joints. Local heating will ...
... canals and a knowledge of cupuloendolymph mechanisms, the role of adaptation effects and the influence of secondary etiological factors are all ...
The measurements will improve our understanding of quantum mechanics. The measurements are very sensitive to minuscule accelerations. ...
... ACCELERATED SABOT SYSTEM FOR THE PRODUCTION OF INTENSE MOLECULAR BEAMS. ... promise of producing a molecular beam in the ...
... of Homogeneous and Heterogeneous Metallic Materials,. ... acceleration (active solution) or retardation (passivation ... main phase and enrichment of the ...
Jan 7, 2004... the acceleration mechanism (including possible mass- and ... traversed volumes by assigning different diffusion coefficients to them, ...
... PLASTICS, *WEATHERING, MECHANICAL PROPERTIES, LABORATORY TESTS, DEGRADATION, CHEMICAL PROPERTIES, PHYSICAL ...
... Descriptors : *ACCELEROMETERS, MAGNETIC CIRCUITS, MECHANICAL PROPERTIES, ACCELERATION, MASS, FREQUENCY MODULATION ...
The mechanism of plasma and projectile acceleration in a DC rail gun is described from a microscopic
... his observation that fatigue cracks in ordinary ... rely on a primary mechanism of electrolytic corrosion induced or accelerated by the concurrent ...
