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Purpose: To eva luate quantitative cerebral blood flow (qCBF) with traditional time-based measurements or metrics of cerebral perfusion: time to peak (Tmax) and meantransit time (MTT) in stroke patients.Materials and Methods: Nine ischemic stroke patients (four male, five f..
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摘要 塑料制品制造業(yè)近年迅速成長(zhǎng)。其中最受歡迎的制作過(guò)程是注塑塑料零件。注塑模具的設(shè)計(jì)對(duì)產(chǎn)品質(zhì)量和效率的產(chǎn)品加工非常重要。模具公司想保持競(jìng)爭(zhēng)優(yōu)勢(shì),就必須縮短模具設(shè)計(jì)和制造的周期。 模具是工業(yè)的一個(gè)重要支持行業(yè),在產(chǎn)品開(kāi)發(fā)過(guò)程中作為一個(gè)重要產(chǎn)品設(shè)計(jì)師和制造商之間的聯(lián)系。產(chǎn)品開(kāi)發(fā)經(jīng)歷了從傳統(tǒng)的串行..
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Abstract An efficient and accurate algorithm is developed to eva luate the reliability of a steel frame and reinforced concrete shear wall structural system subjected to static loading. In a companion paper, the algorithm is extended to consider dynamic loading, including seismic loading. The co..
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AbstractThis paper presents some empirical evidence on the psycho-social benefits people seem to derive from their cars based on in-depth interviews with a sample of car owners and non-car owners in the West of Scotland. We suggest that psycho-social benefits of protection, autonomy and prestige ..
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We have and the architects must deal with the spatial aspect of activity, physical, and symbolic needs in such a way that overall performance integrity is assured. Hence, he or she well wants to think of evolving a building environment as a total system of interacting and space forming subsystems..
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摘要:一個(gè)包括 1,996個(gè)職業(yè)工人的全國(guó)性的調(diào)查,在努力定量職業(yè)工人關(guān)于工程生產(chǎn)力的看法。調(diào)查定量了83個(gè)相對(duì)矛盾的生產(chǎn)力要素,這一調(diào)查結(jié)果被一系列討論機(jī)構(gòu)所認(rèn)同和支持,這些機(jī)構(gòu)中包括在美國(guó)各地的管理施工工地的職業(yè)工人們。調(diào)查結(jié)果顯示職業(yè)工人們擁有一個(gè)好的有關(guān)生產(chǎn)要素的概念確實(shí)會(huì)影響到他們的日常生產(chǎn),..
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摘要目前在工程建設(shè)項(xiàng)目行業(yè)中,以工程招投標(biāo)為特征的建筑市場(chǎng)已經(jīng)形成,施工企業(yè)為創(chuàng)造良好經(jīng)濟(jì)效益,必須嚴(yán)格控制成本,加強(qiáng)成本控制管理,才能提高市場(chǎng)適應(yīng)能力和競(jìng)爭(zhēng)力。本文從降低成本、增加收入兩方面闡述對(duì)施工成本的有效控制。投標(biāo)文件的編制是投標(biāo)工作的一個(gè)重要環(huán)節(jié),直接影響投標(biāo)工作的成敗,投標(biāo)的成敗對(duì)企..
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The widespread usage of electricity promoted to defend the development of thunder product and be a high pressure power grid to provide motive and illuminate for the thousand 10000, thunder and lightning also a great deal of bane high pressure lose to change to give or get an electric shock an equ..
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Materials and structural forms are combined to make up the various parts of a building, including the load-carrying frame, skin, floors, and partitions. The building also has mechanical and electrical systems, such as elevators, heating and cooling systems, and lighting systems. The superstructu..