نتایج جستجو برای: window analysis

تعداد نتایج: 2871707  

Journal: :wavelet and linear algebra 2015
a. ghaani farashahi

finite affine groups are given by groups of translations and di-lations on finite cyclic groups. for cyclic groups of prime orderwe develop a time-scale (wavelet) analysis and show that for alarge class of non-zero window signals/vectors, the generatedfull cyclic wavelet system constitutes a frame whose canonicaldual is a cyclic wavelet frame.

Objective(s): The energy resolution of a cadmium-zinc-telluride (CZT) solid-state semiconductor detector is about 5%, and is superior to the resolution of the conventional Anger type detector which is 10%. Also, the window width of the high-energy part and of the low-energy part of a photo peak window can be changed separately. In this study, we used a semiconductor detector and examined the ef...

2011
David B. Richardson Richard F. MacLehose Bryan Langholz Stephen R. Cole

Exposure lagging and exposure-time window analysis are 2 widely used approaches to allow for induction and latency periods in analyses of exposure-disease associations. Exposure lagging implies a strong parametric assumption about the temporal evolution of the exposure-disease association. An exposure-time window analysis allows for a more flexible description of temporal variation in exposure ...

2007

What every scientist andlayman means by a "measure" is anumber with which arithmetic can be done, a number which can be added and subtracted and differences from which can be multiplied and divided with results that maintain their numerical meaning. The original observations in any science are never measures in this sense. They cannot be measures because a measure implies and requires the previ...

Journal: :American journal of epidemiology 2011
David B Richardson Richard F MacLehose Bryan Langholz Stephen R Cole

Exposure lagging and exposure-time window analysis are 2 widely used approaches to allow for induction and latency periods in analyses of exposure-disease associations. Exposure lagging implies a strong parametric assumption about the temporal evolution of the exposure-disease association. An exposure-time window analysis allows for a more flexible description of temporal variation in exposure ...

Journal: :iranian journal of radiation research 0
s. thirumalai swamy department of radiation oncology, yashoda hospitals, hyderabad, india c. anu radha school of advanced sciences, vit university, vellore, india g. arun department of radiation oncology, yashoda hospitals, hyderabad, india m. kathirvel department of radiation oncology, yashoda hospitals, hyderabad, india v. subramanian department of radiation oncology, yashoda hospitals, hyderabad, india

background: aim of this study is to evaluate the accuracy of the gated volumetric modulated arc therapy (vmat/rapidarc) using 2d planar dosimetry, dynalog files and compass 3d dosimetry system. materials and methods: pre-treatment quality assurance of 10 gated vmat plans was verified using 2d array and compass 3d dosimetry system. advantage of compass over 2d planar is that it provides the clin...

Journal: :international journal of architectural engineering and urban planning 0
jamaleddin soheili faculty of architecture, qazvin islamic azad university, blv.nokhbegan, p.o.box 34185-1416 ,qazvin ,iran kamelia alimardani faculty of architecture, science and research branch , qazvin islamic azad university ,qazvin ,iran

abstract creating suitable classrooms that can meet the educational needs of mentally-retarded students is vitally important. the present study explores the effect of three physical characteristics of classroom environment on the creativity of educable mentally-retarded children: window view, window size, and classroom size. the participants, one hundred 9-to-11-year-old girl students, took the...

2004
M. van der Baan

The propagation of two orthogonally polarized shear waves, or shearwave splitting, is arguably the most robust indication of seismic anisotropy in the Earth. This splitting can be parameterized in terms of the polarization of the fast shear-wave and the lag time between fast and slow components dt. These two parameters provide constraints on the mechanism causing the anisotropy. All methods of ...

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