نتایج جستجو برای: radon transformation

تعداد نتایج: 227445  

2004
RAVI MAZUMDAR

We present a short survey of some very recent results on the finitely additive white noise theory. We discuss the Markov property of the solution of a stochastic differential equation driven directly by a white noise, study the Radon-Nikodym derivative of the measure induced by nonlinear transformation on a Hilbert space with respect to the canonical Gauss measure thereon and obtain a represent...

B. Xhafa, G. Hodolli, K. Dollani, S. Kadiri, Sadik Bekteshi,

Background: In this study are submitted the radon concentration measurement results of four underground mines: Stanterg, Artana, Hajvali and Badovc, which are owned by Trepça Enterprise, Kosovo. The mines have the same geological formation and from these mines are extracted ores rich with lead, zinc, silver, and gold. The radiation exposures caused by radon and radon daughters was determ...

ژورنال: سنجش و ایمنی پرتو 2013

  Based on the last presented reports of UNSCEAR, inhalation of radon gas and its short-lived decay products is a major contributor to the human exposure from natural radioactivity. Lung cancer is the known effect on human health from exposure to radon in air. Radon is found in outdoor air of buildings of all kinds. The main important isotope of radon is 222Rn. Radon (222Rn) is a noble gas...

1987
Violet F. Leavers Geoffrey F. Miller

The Radon transformations of generalized functions concentrated on lines and curves are deduced using a geometric approach and a limiting process. It is shown that any curve may be replaced by its tangents for the purposes of transformation and that each tangent will produce a maximum value in transform space which may be located using a one dimensional convolution filter. The locations of such...

2002
TAO QIAN LIMING ZHANG

Based on a mathematical analysis involving Radon measure explicit formulars of continuous (integral) wavelet transformations are given and further used to direct how to use rotational wavelets in edge detection.

2003
T. O. BANAKH V. I. BOGACHEV A. V. KOLESNIKOV

We study topological spaces with the strong Skorokhod property, i.e., spaces on which all Radon probability measures can be simultaneously represented as images of Lebesgue measure on the unit interval under certain Borel mappings so that weakly convergent sequences of measures correspond to almost everywhere convergent sequences of mappings. We construct nonmetrizable spaces with such a proper...

Journal: :iranian journal of radiation research 0
k. kant aggarwal college, ballabgarh, faridabad, 121 004; formerly at department of physics, kl mehta dn college for women, faridabad, haryana, 121 001, india rashmi department of physics, gfitm, ballabgarh, faridabad, haryana, india r.g. sonkawade inter university accelerator centre, new delhi, 110 067, india g.s. sharma department of physics, g.l.a. institute of technology and management, mathura (u.p) 281 001, india r.p. chauhan department of applied physics, nit, kurukshetra, 136 119, india s.k. chakarvarti department of applied physics, nit, kurukshetra, 136 119, india

background: radon and thoron are invisible, odorless, heavy and radioactive gases which are ubiquitously present in dwellings and in the environment. in the present work, seasonal variation of indoor radon, thoron and their progeny concentrations has been studied in the dwellings of industrially polluted cities in district faridabad, haryana and district mathura in uttar pradesh. materials and ...

Journal: :iranian journal of radiation research 0
k. kant department of physics, kl mehta dayanand college for women, faridabad, haryana, india-121 001 s.b. upadhyay department of physics, b.s.a. college, mathura ,u.p. – 281 001 s.k. chakarvarti department of applied physics, n.i.t. kurukshetra, haryana, india-136 119

abstract background: and soils with which it comes in contact. there is dual exposure from radon in water i.e. due toinhalation of the radon released from the water into the ambient air and through ingestion whenwater is used for drinking. as radon contaminated water adversely affects the health, it istherefore fundamental from health and hygiene point of view to measure radium concentrationand...

Journal: :Bulletin de la Société mathématique de France 1993

Journal: :iranian journal of radiation research 0
m. shakir khan department of applied physics, zh college of engineering and technology, aligarh muslim university, aligarh-202002, u t ta r pr ade sh, india a.h. naqvi department of applied physics, zh college of engineering and technology, aligarh muslim university, aligarh-202002, u t ta r pr ade sh, india a. azam department of applied physics, zh college of engineering and technology, aligarh muslim university, aligarh-202002, u t ta r pr ade sh, india d.s. srivastava department of physics, mangalaytan university, aligarh-202002, uttar pradesh, india

background: everyone is exposed to radon because it is present everywhere with varying concentrations. radon and its progeny are well established as lung carcinogenic. materials and methods: track etch technique using lr-115 plastic track detectors has been used to measure the effective radium content and radon exhalation rates in soil samples collected from urban area of etah district of uttar...

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