نتایج جستجو برای: نانوکامپوزیت tib ti
تعداد نتایج: 38825 فیلتر نتایج به سال:
In the poster presentation the challenges and the chosen strategy for Linked Data-based metadata export of the TIB|AV-Portal and its multimedia content are introduced. In difference to other library metadata the TIB|AV-Portal deploys automated metadata extraction and named entity linking to provide time-based semantic metadata regulary published as RDF data dump files. The underlying data model...
Sleep is important for normative cognitive functioning. A single night of total sleep deprivation can reduce the capacity to encode new memories. However, it is unclear how sleep restriction during several consecutive nights affects memory encoding. To explore this, we employed a parallel-group design with 59 adolescents randomized into sleep-restricted (SR) and control groups. Both groups were...
STUDY OBJECTIVES To investigate sleep EEG changes in adolescents across 7 nights of sleep restriction to 5 h time in bed [TIB]) and 3 recovery nights of 9 h TIB. METHODS A parallel-group design, quasi-laboratory study was conducted in a boarding school. Fifty-five healthy adolescents (25 males, age = 15-19 y) who reported habitual TIBs of approximately 6 h on week nights (group average) but e...
در این پژوهش، ساخت پودرهای نانوساختار niti و نانوکامپوزیت niti-al2o3 با دو درصد وزنی al2o3به مقادیر 10 و 20 به روش آلیاژسازی مکانیکی در آسیاب گلوله ای سیاره ای تحت اتمسفر آرگون بررسی شد. مطالعات ریزساختاری به وسیله آزمون های پراش پرتو ایکس (xrd)، میکروسکوپ الکترونی روبشی (sem)، میکروسکوپ الکترونی عبوری (tem)، آنالیز حرارتی و ریزسختی سنجی ارزیابی شد. بررسی های ترمودینامیکی و سینتیکی به ترتیب برا...
,Abstract. It is shown that an integrity basis of absolute invariants for any representation of a finite abelian group follows from one integrity basis universal for this group-the typical integrity basis (TIB). An algorithm based 0n.a subsequent multiplication of monomial bases to irreducible representations is found for deriving the TIB. The concept of integrity basis is extended to relative ...
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