Results 61 to 70 of about 3,299,372 (293)
Dizhen xuebao为充分考虑近断层脉冲型地震动对隔震结构设计反应谱（以下简称隔震设计谱）的影响，选取近断层脉冲型地震动作为研究对象，基于 《建筑隔震设计标准》 （GB/T 51408—2021）中关于隔震设计谱的相关规定，开展了近断层区的隔震设计谱研究。采用小波变换的速度脉冲识别法选取了140组近断层脉冲型地震动，计算得到保证率分别为50% （平均谱）和84% （平均谱＋1倍标准差谱）的地震反应谱，并将其与隔震设计谱进行比较分析。结果显示，现行隔震设计标准建议的设计谱谱值在部分周期段上低于地震反应谱谱值 ...
Zhongfu Mai +3 more
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Information, 2019 Period detection technology for weak characteristic signals is very important in the fields of speech signal processing, mechanical engineering, etc. Average magnitude difference function (AMDF) is a widely used method to extract the period of periodic ...
Zhao Han, Xiaoli Wang
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‘Scrap Metal Hoards’ of the Later Urnfield Period in the Carpathian Basin
Documenta Praehistorica, 2022 Large ‘scrap’ metal hoards have so far been seen as a characteristic of the older Urnfield Period in the eastern Carpathian Basin. Using the hoard from Dezmir, Romania, as a starting point, this paper describes a group of hoards with chronologically and
Oliver Dietrich +2 more
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Influence of an Internal Magnetar on Supernova Remnant Expansion
, 2003 Most of the proposed associations between magnetars and supernova remnant suffer from age problems. Usually, supernova remnants ages are determined from an approximation of the Sedov-Taylor phase relation between radius and age, for a fixed energy of the
Fuchs Y. +5 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Introduction Pulmonary dysfunction and sleep abnormalities are common in children with sickle cell disease (SCD) and are associated with worse clinical outcomes. Whether spirometry abnormalities are associated with polysomnography (PSG) findings remains unclear.
Ammar Saadoon Alishlash +4 more
wiley +1 more source
Prevalence and Trajectory of Household Material Hardship Among Children With Advanced Cancer
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background/Objectives Families of children with advanced cancer living in poverty experience inferior outcomes including poor parent mental health and worse child quality of life. Household material hardship (HMH: food, housing, transportation, and/or utility insecurity) is a modifiable poverty exposure—and potential intervention target—that ...
Sarah Wright +13 more
wiley +1 more source
Characteristic features of coptic encomia from the period of the cycles (7–8th centuries) [PDF]
Вестник Православного Свято-Тихоновского гуманитарного университета: Сериа III. Филология, 2012 The paper deals with some features of the Coptic literature of 7–8th centuries, which was one of the key periods in the history of Egypt. The author gives particular attention to the genre of encomium and examines issues that became topical due to the ...
Frangulian Liliia
doaj
Characteristic of rainfall in the flood period in DKI Jakarta in 1996, 2002, and 2007
MATEC Web of Conferences, 2018 Spatial and temporal studies of rain characteristics were carried out in DKI Jakarta. This study aims to: assess the rain characteristic as the cause of flood in DKI Jakarta. Flood is studied from geography using a spatial approach.
Parlindungan Tambunan Mangapul
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Failure analysis of high voltage thyristor under impulse during reverse recovery period
电力工程技术, 2022 To acquire the characteristic parameters which demonstrate the state of high voltage thyristor for clarifying its failure mechanism, an experiment platform which can not only generate high voltage pulses to thyristor at different moments during reverse ...
YE Mingtian +4 more
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The `Periodic Nulls' of Radio Pulsar J1819+1305
, 2008 We present a single-pulse study of the four-component pulsar J1819+1305, whose ``null'' pulses bunch at periodic intervals of around 57 times the rotation period.
A. Cumming +5 more
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