Results 31 to 40 of about 80,393 (300)
Fission life-time calculation using a complex absorbing potential
A comparison between the semi-classical approximation and the full quantum calculation with a complex absorbing potential is made with a model of the fission of 258Fm. The potential barrier is obtained with the constrained Skyrme HF+BCS theory.
Scamps Guillaume, Hagino Kouichi
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The standard procedures for calculating the lifetime of rolling bearings, defined by DIN ISO 281 and ISO/TS 16281, have been revisited in this work with a specific focus on redefining the η factor for cylindrical roller thrust bearings (CRTBs). The new η
Paul Sauvage +3 more
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Spindles are key components of machine tools. An efficient estimation of the spindle condition and its prognosis can improve production efficiency and quality due to predictive maintenance planning.
Jiri Sova +3 more
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PROBLEM RAISING: THE QUESTION OF DESIGN PROCEDURES DEPENDING ON THE COMPOSITION OF MIXTURES
Different pavement structure design procedures have been carried out since 1960s in Hungary. The main principles of the most recent procedure were laid down in 1992 by Ervin Nemesdy, which was an empirical design guide.
Kornel Almassy, Domonkos Koch
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Fatigue analysis-based numerical design of stamping tools made of cast iron [PDF]
This work concerns stress and fatigue analysis of stamping tools made of cast iron with an essentially pearlitic matrix and containing foundry defects.
Ronde-Oustau, François +4 more
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Cumulative Damage and Life Prediction Models for High-Cycle Fatigue of Metals: A Review
Fatigue design of engineering structures is typically based on lifetime calculation using a cumulative damage law. The linear damage rule by Miner is the universal standard for fatigue design even though numerous experimental studies have shown its ...
Kris Hectors, Wim De Waele
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Assessment of Depth Contact Endurance of Surface-Hardened Gears
The main factors determining the performance of highly stressed surface-hardened gears of transmissions of energy-consuming machines are the parameters of a hardened layer, especially the behavior of hardness distribution over its thickness. The existing
Sergei P. Rudenko +2 more
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DLTPulseGenerator: A library for the simulation of lifetime spectra based on detector-output pulses
The quantitative analysis of lifetime spectra relevant in both life and materials sciences presents one of the ill-posed inverse problems and, hence, leads to most stringent requirements on the hardware specifications and the analysis algorithms. Here we
Danny Petschke, Torsten E.M. Staab
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Lifetime calculations in energy levels of Kr vii
Se presentan los cálculos de las vidas útiles para todos los niveles de energía experimentalmente conocidos del espectro del criptón seis veces ionizado (Kr vii). Se utilizó el método relativista de Hartree–Fock que incluye efectos de polarización del núcleo.
M. Raineri +4 more
openaire +2 more sources
Excitation and breakup of [pi]+[pi]--atoms at high energies [PDF]
The DIRAC collaboration at CERN currently aims at measuring the lifetime of pionium (π + π − -atoms) with an accuracy of 10%. This is a crucial test of Chiral Perturbation Theory which predicts the lifetime to be (2.9 ± 0.1) fs.
Schumann, Marc
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