نتایج جستجو برای: field data

تعداد نتایج: 3032156  

1999
Jonas Holmerin

Data elds provide a exible and highly general model for indexed collections of data. Data Field Haskell is a Haskell dialect that provides an instance of data elds. It can be used for very generic collection-oriented programming, with a special emphasis on multidimensional structures. We give a brief description of the data eld model and its underlying theory. We then describe Data Field Haskel...

Journal: :Applied Mathematics Letters 2016

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم انسانی 1389

there are two major theories of measurement in psychometrics: classical test theory (ctt) and item-response theory (irt). despite its widespread and long use, ctt has a number of shortcomings, which make it problematic to be used for practical and theoretical purposes. irt tries to solve these shortcomings, and provide better and more dependable answers. one of the applications of irt is the as...

Journal: :Appl. Math. Lett. 2016
Gang Bao Peijun Li Yuliang Wang

Using the inverse diffractive grating problem as an example, we demonstrate how a super-resolution can be achieved stably by using far-field data. The idea is to place a slab of a homogeneous medium with a large index of refraction above the grating surface, and more propagating wave modes can be utilized from the far-field data which contributes to the reconstruction resolution. © 2016 Elsevie...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد 1376

in this thesis our aim is to construct vector field in r3 for which the corresponding one-dimensional maps have certain discontinuities. two kinds of vector fields are considered, the first the lorenz vector field, and the second originally introced here. the latter have chaotic behavior and motivate a class of one-parameter families of maps which have positive lyapunov exponents for an open in...

Journal: :international journal of occupational hygiene 0
mohammad javad jafari department of occupational health, faculty of health, university of shahid beheshti, tehran, iran ali karimi department of occupational health, faculty of health, tehran university of medical sciences, tehran maryam haghshenas occupational health, occupational and environmental health administration office, ministry of health

proposing a noise standards should be considered seriously by the governmental authorities because of the prevalence of hazardous noise exposure and the seriousness of the effects . in a survey founded by world health organization’s regional office in iran, the existing as well as gathered data from field were applied to propose a national occupational noise exposure limit. the collected data p...

Journal: :journal of tethys 0

the oudna field part of the offshore northeastern tunisia, straddles between two structural domains, the tunisian atlas to the north and the pelagian sea to the south. the study of this field has confirmed adequate petroleum system in fahdene formations (albian-cenomanian) and birsa (serravallian) resulting from the combination of several sedimentary, tectonic and thermal factors. to do this, w...

Journal: :journal of mining and environment 2015
m. fakhrerad a. nejati kalateh s. ghomi

coastal fars gravimetry project in fars province was carried out to find the buried salt domes and to determine characteristics of faults in this area. the lavarestan structure was covered by 4203 gravimetry stations in a regular grid of 1000*250 m. depth structural model of this anticline made in previous studies was based on geological evidences and structural geology measurements. in order t...

Journal: :British Journal of Ophthalmology 2007

Journal: :Proceedings of National Aviation University 2015

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