نتایج جستجو برای: deconvolution

تعداد نتایج: 7107  

Journal: :Drug metabolism and disposition: the biological fate of chemicals 1997
Y K Pithavala I Soria C L Zimmerman

The deconvolution principle was used to evaluate the extent of absorption and first-pass elimination of selected drugs. In the first example, deconvolution of the portal blood profiles of etretinate (ET, a synthetic retinoid) indicated that there was significant gut-wall conversion of ET to acitretin (ETA, the primary metabolite of ET) during a 60-min intestinal perfusion of ET. In the second e...

Journal: :iranian journal of basic medical sciences 0
reza kowsari department of biotechnology, school of pharmacy, mashhad university of medical sciences, mashhad, iran rezvan yazdian-robati department of biotechnology, school of pharmacy, mashhad university of medical sciences, mashhad, iran bibi marjan razavi targeted drug delivery research center, department of pharmacodinamy and toxicology, mashhad university of medical sciences, mashhad, iran atena pourtaji pharmaceutical research center, department of pharmacodynamy and toxicology, school of pharmacy, mashhad university of medical sciences, mashhad, iran maryam ghorbani department of pharmacology and toxicology, faculty of medicine, baqiyatallah university of medical sciences, tehran, iran hediye moghadam-omranipour department of biotechnology, school of pharmacy, mashhad university of medical sciences, mashhad, iran

objective(s): erythropoietin (epo), is a 34kda glycoprotein hormone, which belongs to type 1 cytokine superfamily. epo involves in erythrocyte maturation through inhibition of apoptosis in erythroid cells. besides its main function, protective effects of epo in heart and brain tissues have been reported. epo has a critical role in development, growth, and homeostasis of brain. furthermore epo h...

Journal: :Signal Processing 2009

Journal: :CoRR 2014
Sunav Choudhary Urbashi Mitra

Blind deconvolution is an ubiquitous non-linear inverse problem in applications like wireless communications and image processing. This problem is generally ill-posed, and there have been efforts to use sparse models for regularizing blind deconvolution to promote signal identifiability. Part I of this two-part paper characterizes the ambiguity space of blind deconvolution and shows unidentifia...

2013
WAYNE EBY

We review some of the important results on deconvolution, particularly the multichannel deconvolution problem, for the setting of Euclidean space, focusing on the central role of the Hörmander strongly coprime condition in this area of analysis. We then address the problem of deconvolution in the Heisenberg group setting, beginning with the results of [16]. We also extend the results of [16] to...

2016
KOMRAVELLI SOWMYA B. SANTHOSH

Convolution and Deconvolution is having wide area of application in Digital Signal Processing. Convolution helps to estimate the output of a system with arbitrary input, with knowledge of impulse response of the system. Linear systems characteristics are completely specified by the systems impulse response, as governed by the mathematics of convolution. And with the knowledge of impulse respons...

2012
Hui Jia Jia Li Zuowei Shen Kang Wang

Image deconvolution is a challenging ill-posed problem when only partial information of the blur kernel is available. Certain regularization on sharp images has to be imposed to constrain the estimation of true images during the blind deconvolution process. Based on the observation that an image of sharp edges tends to minimize the ratio between the `1 norm and the `2 norm of its wavelet frame ...

1999
Yujiro Inouye Ruey-Wen Liu

This paper addresses the blind deconvolution of multi-input– multi-output (MIMO) FIR systems driven by white non-Gaussian source signals. First, we present a weaker condition on source signals than the so-called i.i.d. condition so that blind deconvolution is possible. Then, under this condition, we provide a necessary and sufficient condition for blind deconvolution of MIMO FIR systems. Finall...

1998
Yujiro Inouye Kazuaki Tanebe

Multichannel blind deconvolution has received increasing attention during the last decade. Recently, Martone [3, 4] extended the super-exponential method proposed by Shalvi and Weinstein [1, 2] for single-channel blind deconvolution to multichannel blind deconvolution. However, the Martone extension suffers from two type of serious drawbacks. The objective of this paper is to obviate these draw...

Journal: :CoRR 2015
Sunav Choudhary Urbashi Mitra

Blind deconvolution is an ubiquitous non-linear inverse problem in applications like wireless communications and image processing. This problem is generally ill-posed since signal identifiability is a key concern, and there have been efforts to use sparse models for regularizing blind deconvolution to promote signal identifiability. Part I of this two-part paper establishes a measure theoretica...

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