نتایج جستجو برای: mixed mode
تعداد نتایج: 437456 فیلتر نتایج به سال:
В работе исследуется смешанный режим работы РЛС, включающий циклическую генерацию и прием отраженных импульсных сигналов разной длительности на несущей частоте. таком режиме по техническим причинам происходит потеря информации об отдельных принятых импульсах. Предложен алгоритм интерполяции значений сигнала в потерянных Алгоритм включает себя устранение неоднозначности определения радиальной ск...
BACKGROUND The Internet is increasingly considered to be an efficient medium for assessing the quality of health care seen from the patients' perspective. Potential benefits of Internet surveys such as time efficiency, reduced effort, and lower costs should be balanced against potential weaknesses such as low response rates and accessibility for only a subset of potential participants. Combinin...
In the present paper, computations of mixed mode stress intensity factor (SIF) variations along the crack front, and fatigue-crack-growth simulations, in cracked I-beams, considering different load cases and initial crack configurations, are carried out by employing the three-dimensional SGBEM (Symmetric Galerkin Boundary Element Method)–FEM (Finite Element Method) Alternating Method. For mode-...
Mixed-mode, high-cycle fatigue-crack growth thresholds are reported for through-thickness cracks (large compared to microstructural dimensions) in a Ti±6Al±4V turbine blade alloy with a bimodal microstructure. Speci®cally, the eect of combined mode I and mode II loading, over a range of phase angles b tanÿ1 DKII=DKI from 0° to 82° DKII=DKI 0±7), is examined for load ratios (ratio of minimu...
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