This is a partly philosophical discussion of the problems of conducting accelerated life tests experiments and analyzing data from such experiments. The objective is to predict life at a specified stress level or radiation dose. The concept of information is presented, and its quantification ...
Energy Citations Database
... and stimulation of ideas. ... This experiment was devised because large carbonate con- S centrations had frequently been found to be associated with ...
DTIC Science & Technology
The Facility for Accelerated Service Testing (FAST), located at the Transportation Test Center near Pueblo, Colorado, is a joint government/industry program for accelerated life cycle testing of railroad track and mechanical components. The facility consi...
National Technical Information Service (NTIS)
Apr 21, 2011... Space Acceleration Measurement System, Solid Surface Combustion Experiment, and the Tank Pressure Control experiment. ...
NASA Website
... Accelerator. A New Experiment in the Physics of Elementary Particles,. Corporate ... Subject Categories : PARTICLE ACCELERATORS. ...
Two different cell chemistries, Gen 1 and Gen 2, were subjected to accelerated aging experiments. In Gen 1 calendar-life experiments, useful cell life was strongly affected by temperature and time. Higher temperatures accelerated the degradation of cell p...
Two different cell chemistries, Gen 1 and Gen 2, were subjected to accelerated aging experiments. In Gen 1 calendar life experiments, useful cell life was strongly affected by temperature and time. Higher temperature accelerated cell performance degradati...
... ACCELERATED LIFE TESTING OF METALLIC RECTIFIERS ... FACTORS AFFECTING LIFE CHARACTERISTICS CF METALLIC RECTIFIERS ...
Although light-emitting diodes (LEDs) have the potential for long life, LED luminaires may experience a much shorter life for the system as a whole because of the driver. Past studies show that the electrolytic capacitor used in switch-mode power supplies often has the shortest lifetime, and thus determines the electronic driver ...
NASA Astrophysics Data System (ADS)
The High Intensity Proton Accelerator Project, named as J-PARC, was started on 1 April 2001 at Tokai-site of JAERI. The accelerator complex of J-PARC consists of three accelerators: 400 MeV Linac, 3 GeV rapid cycle synchrotron and 50 GeV synchrotron; and four major experimental facilities: Material and Life Science ...
PubMed
... REPORTS, EFFICIENCY, HIGH PRESSURE ... SUBMARINES, ACCELERATED TESTING, DECOMPRESSION ... ENGINEERING LIFE SUPPORT ...
The research into advanced acceleration concepts for electron linear accelerators being pursued at SLAC is reviewed. This research includes experiments in laser acceleration, plasma wakefield acceleration, and mmwavelength RF driven accelerators.
DOE Information Bridge
A method for inference and extrapolations in certain dose- response. damage-assessments and accelerated life-testing studies as been proposed by Meinhold and Singpurwalla in 1986. The method is based on a use of the Kalman-filter algorithm and involves th...
... Accession Number : AD0748252. Title : Temperature and Temperature Gradients for Accelerated Life Tests of Nickel-Cadmium Cells. ...
... Descriptors : *AGING(MATERIALS), *SEMICONDUCTOR DEVICES, *ACCELERATED TESTING, LIFE EXPECTANCY(SERVICE LIFE), COST ...
... Accession Number : ADD878579. Title : RELIABILITY OF CRT: ITS LIFE AND ACCELERATION EVALUATION METHOD. Corporate Author : ...
... Page 2. CATHODIC DELAMINATION ACCELERATED LIFE TEST METHOD ... a 1:est for cathodic delamination of such materials in water. ...
... Accession Number : AD0014184. Title : ACCELERATED LIFE TESTING OF METALLIC RECTIFIERS. Descriptive Note : Quarterly rept. no. ...
... Title : ACCELERATED LIFE TESTING EFFECTS ON CMOS MICROCIRCUIT CHARACTERISTICS. Corporate Author : Report Date : JUL 1977. ...
... ADD873178. Title : ACCELERATED LIFE TESTING EFFECT ON CMOS MICROCIRCUIT CHARACTERISTICS. Corporate Author : ...
A plasma wakefield acceleration experiment is conducted at the Stanford Linear Accelerator Center. This experiment addresses the issues relevant to a meter-long plasma accelerator module in the context of a high-energy accelerator.
... Descriptors : *STORAGE BATTERIES, *WET CELLS, ACCELERATION, ACCELERATION, LIFE EXPECTANCY(SERVICE LIFE), ELECTROLYTES ...
The accelerated calendar and cycle life of lithium-ion cells was studied. Useful cell life was strongly affected by temperature, time, state-of-charge (SOC) and change in state-of-charge ({Delta}SOC). In calendar life experiments, useful cell life was strongly affected by ...
For an accelerated life test, let V sub 1,...,V sub k denote k fixed accelerated stresses and let V sub 0 be the normal stress. It is assumed that the probability distributions corresponding to the accelerated stresses differ from the nonaccelerated life ...
This paper discusses the operation of the 25URC accelerator. Shaft and charging chain life, new corona point holder, recirculating gas stripper, an air-SF/sub 6/ separator, and replication of chopped beam pulse are discussed. Seven new ion species were provided for experiment. 2 refs., 2 figs., 2 tabs. (LSP)
... LIFE OF SUPERALLOYS AT HIGH TEMPERATURE IN ... AN EXTENDED RUPTURE LIFE TOOK PLACE ... WHERE AN ACCELERATION SHOULD BE ...
... experiments through burning and heat release are presented. Descriptors : *ACCELERATION, *PROJECTILES, *SUPERSONIC COMBUSTION, * ...
... LIFE), HAZARDS, HIGH TEMPERATURE ... ENVIRONMENTAL TESTS, LIFE CYCLES ... STORAGE, AUSTRALIA, ACCELERATED TESTING, THERMAL ...
When the authors first proposed an accelerator-driven reactor, the concept was opposed by physicists who had earlier used the accelerator for their physics experiments. This opposition arose because they had nuisance experiences in that the accelerator wa...
The POLAR 5 rocket experiment carried an electron accelerator on a 'daughter' payload which injected
NASA Technical Reports Server (NTRS)
In connection with the proposed use of Tl-205 as a geological detector for solar neutrinos, experiments have been carried out to study the feasibility of detecting radioactive Pb-205 nuclei (half-life, 15 million years) at very low concentrations using accelerator mass spectrometry. By using high-energy ion beams from the UNILAC ...
This document outlines some of the types of experiments which can be used to improve reliability, simulate age, and predict life expectancy of complex equipment. Brief discussion is given of failure mode tests, which often give useful qualitative aging in...
An experiment to improve the accuracy in the half-life value of /sup 60/Fe by measuring both the amount of /sup 60/Fe nuclei and the decay-rate of a spallation produced sample using the relation dN/dt = -lambda N is briefly discussed. (WHK)
An experiment to improve the accuracy in the half-life value of exp 60 Fe by measuring both the amount of exp 60 Fe nuclei and the decay-rate of a spallation produced sample using the relation dN/dt = -lambda N is briefly discussed. (ERA citation 08:03481...
A continuing effort to develop a new thermal battery technology based on the Li(Si)/FeS2 electrochemical couple is reported. The results relate to the long shelf life requirement for thermal batteries designed by Sandia, and include topics relevant to leakage through the hermetic seal and accelerated aging experiments with materials ...
The objective of the Orbital Acceleration Research Experiment (OARE) is to measure, with high accuracy, the low-frequency, low-magnitude acceleration levels onboard the space shuttle. The shuttle experiences acceleration from atmospheric drag, gravity gra...
... the service life of two ... data obtained at high temperatures and ... MATERIALS), DEGRADATION, ACCELERATED TESTING, HUMIDITY, REACTION ...
reasonable amount of time, an accelerated life test at high temperatures is used . This type of accelerated test is based on the observation that ...
... in high onset rate, high sustained +GZ ... SURVIVAL KITS, *LIFE SUPPORT SYSTEMS, ACCELERATION, ACCELERATION TOLERANCE ...
... ESCAPE SYSTEMS, *LIFE SUPPORT SYSTEMS ... SURVIVAL KITS, ACCELERATION, ACCELERATION TOLERANCE ... FLIGHT CREWS, HIGH ...
... to efforts to reduce loss of life, injury and ... the design of the peak acceleration device (PAD ... rugged aluminum casing that provides high resistance to ...
degradation models and prediction of remaining useful life. The accelerated aging system is designed for the exploration of intrinsic degradation mechanisms ...
... TECHNIQUES FOR MICROCIRCUITS - EVALUATION OF HIGH TEMPERATURE (473K - 573K) ACCELERATED LIFE TEST TECHNIQUES ...
Nursing education is now well established within the tertiary sector. Globally, recent years have seen the implementation of numerous admission pathways to a nursing degree, enabling applicants from varying backgrounds to enter the nursing profession. A major catalyst for these pathways has been to address the perennial shortage in the nursing workforce. The accelerated ...
We reviewed the regulatory history of the accelerated approval process and the US Food and Drug Administration (FDA) experience with accelerated approval of oncology products from its initiation in December 11, 1992, to July 1, 2010. The accelerated approval regulations allowed accelerated ...
... AGING(MATERIALS), HIGH TEMPERATURE ... THERMAL CYCLING TESTS, ACCELERATED TESTING, THERMAL ... SHELF LIFE, FOAM, GEL ...
Jan 23, 2001 ... Mechanical tests with no local package heating will significantly overestimate the life of solder joints. Local heating will accelerate life ...
*The Accelerated Benefits Option is subject to state availability and regulation . ... Receipt of accelerated benefits may affect your eligibility, or that of ... programs such as medical assistance (Medicaid), Temporary Assistance to ...
Jun 16, 2011 ... Keywords: Accelerated life testing, service life, performance standards, wood preservatives, deterioration, biodegradation, fungicides, ...
Treesearch
Accelerated Life Structural Benchmark Testing for a .... Martin, Infinia Corporation, and NASA Glenn Research Center are developing a high-efficiency, 110 W ...
CMOS MICROCIRCUIT CHARACTERISTICS. Phase II Report. Interim. January 1977 to July 1977. (NASACdi-150381). ACCELERATED LIFE TESTING. N77-31406 ...
... Accession Number : ADA063841. Title : A New Approach to Inference from Accelerated Life Tests. Descriptive Note : Technical rept. ...
The thermal reliability of a closed-type BLDC motor for a high-speed fan is analyzed by an accelerated-life testing and numerical methods in this paper. Since a module and a motor part are integrated in a closed case, heat generated from a rotor in a motor and electronic components in the PCB module cannot be effectively removed to the outside. Therefore, the module will ...
Examined here is the sensitivity of a variety of space experiments to residual accelerations. In all
... AD0407339. Title : MAGNETIC INSULATION EXPERIMENTS WITH A TRAVELING MAGNETIC PISTON PLASMA ACCELERATOR. ...
A summary is given of the activities of those in the Media Accelerator Group. Attention was focused on the Inverse Cherenkov Accelerator, the Laser Focus Accelerator, and the Beat Wave Accelerator. For each of these the ultimate capability of the concept was examined as well as the next series of ...
Two accelerometers provided acceleration data during the STS-75 mission in support of the third United States Microgravity Payload (USMP-3) experiments. The Orbital Acceleration Research Experiment (OARE) and the Space Acceleration Measurement System (SAM...
Ion acceleration has now been demonstrated with the IFA-2 collective ion accelerator system. The IFA-2 system is described, photoionization experiments are summarized, and ion results are presented. Using a 1 MeV electron beam and a 30 cm acceleration len...
Experiments on acceleration of nitrogen ions by electron rings in the falling-off magnetic field of a collective accelerator prototype are described. The nitrogen ions accumulated in the ring during the residual gas ionization at a chamber pressure of (2-...
Abstract-- A system level fault injection experiment measuring changes in probability of failure and error propagation as a function of failure acceleration. It demonstrates that: (1) Probability of failure increases with failure acceleration, and (2) Error propagation decreases with failure acceleration. I.
E-print Network
The SSC Magnet Development Program is developing accelerator dipole magnets in successive iterations. The initial iteration is complete with six full length model magnets and a thermal model having been built and tested. This initial experience along with the evolving SSC Magnet System Requirements have resulted in the second generation magnet cryostat ...
The life sciences experiments conducted during Skylab missions are discussed. The general categories
