Results 1 to 10 of about 80,743 (300)
A simplified formulation for calculation of minority-carrier effective lifetime [PDF]
Results in Physics, 2018 An improved simple equation to calculate the minority-carrier effective lifetime in photoconductance measurements is proposed by the perturbation method.
Xiao-Xia Li, Ji-Huan He
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Positron lifetime calculation for the elements of the periodic table [PDF]
Journal of Physics Condensed Matter, 2007 Theoretical positron lifetime values have been calculated systematically for most of the elements of the Periodic Table. Self-consistent and non-self-consistent schemes have been used for the calculation of the electronic structure in the solid, as well as different parameterizations for the positron enhancement factor and correlation energy.
Fernando Plazaola Muguruza
exaly +6 more sources
Lifetime Calculation of Irregularly Oscillating Bearings in Offshore Winches [PDF]
Modeling, Identification and Control, 2018 The fatigue lifetime calculation of rolling bearings has been intensively researched in the past and has been well documented in standards. The majority of the conducted research in the field of bearing life expectancy only applies to bearings under ...
Lothar Wöll, Georg Jacobs, Achim Kramer
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Extended Wear Lifetime Calculation for Grease Lubricated Gears in Consideration of Surface Hardness and Roughness [PDF]
MATEC Web of Conferences, 2022 Greases have a variety of advantages when special operating conditions apply for gear lubrication, e. g. improved properties against continuous (or slow speed) wear.
Siewerin Benedikt J. +2 more
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Fatigue lifetime calculation of wind turbine blade bearings considering blade-dependent load distribution [PDF]
Wind Energy Science, 2020 Rotating bearings are some of the most commonly employed machine elements. As such, they are well-understood and thoroughly researched pieces of technology.
O. Menck, M. Stammler, F. Schleich
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The methodology of a part lifetime calculation [PDF]
IOP Conference Series: Materials Science and Engineering, 2020 Abstract Reducing mills in piece-reduction at the moment of capturing the pipe’s front end and on the rear end exit are exposed to increased dynamic loads. However these processes at present time are not fully researched. The relevant problem is to decrease dynamic loads in the clamp engine, to increase reliability and durability of the ...
Chumakova, L. A. +2 more
openaire +4 more sources
Influence of the stress gradient on the fatigue life calculation of a martensitic high strength steel [PDF]
Fracture and Structural Integrity, 2017 Nowadays lifetime calculation in the high cycle fatigue region is commonly based on S/N curves which are modified by different influences to ensure accurate results.
I. Milo�evic +3 more
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Deep Contact Endurance Limit of Surface-Hardened Gears
Механика машин, механизмов и материалов, 2023 The reliability and durability of gears in most cases depend on the contact endurance of the material of the parts. Analysis of the stress state of surface-hardened gears has shown that under contact loading, the source of primary damage can be located ...
Sergei P. Rudenko +2 more
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Frontiers in Electronics, 2023 The charging modules of Electric vehicles (EVs) always run in a complex and variable state. As the weakness in the reliable operation of charging modules, the accurate lifetime prediction of aluminum electrolytic capacitors (Al-caps) is important for the
Hongpeng Liu +6 more
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A Detailed Analysis of the H.B. Robinson-2 Reactor Pressure Vessel Dosimetry Benchmark
Energies, 2022 The operation of many nuclear pressurized water reactors is being extended beyond their design lifetime limit. From the perspective of possible further lifetime extension, safety requirements are a priority.
Romain Vuiart +3 more
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