نتایج جستجو برای: preservation method

تعداد نتایج: 1693585  

Journal: :Matica Srpska Journal for Natural Sciences 2007

2015
Md Belayet Hossain Belinda Pingguan-Murphy Yan Chai Hum Khin Wee Lai

Multipurpose Beta Optimized Recursive Bi-histogram Equalization (MBORBHE) method has been proposed in this article for contrast enhancement of US image. Histogram equalization (HE) is very popular for contrast enhancement. But conventional HE methods do not consider brightness and detail preservation simultaneously during contrast enhancement of US image. In case of our proposed method brightne...

Journal: :Applied Mathematics and Computation 2011
Xiaohua Ding Hongyu Liu Zaijiu Shang Geng Sun

Based on reasonable testing model problems, we study the preservation by symplectic Runge-Kutta method (SRK) and symplectic partitioned Runge-Kutta method (SPRK) of structures for fixed points of linear Hamiltonian systems. The structure-preservation region provides a practical criterion for choosing step-size in symplectic computation. Examples are given to justify the investigation.

Journal: :اقتصاد و توسعه کشاورزی 0
مرتضی مولائی محمد کاوسی کلاشمی

abstract researches of preservation valuation of natural resources and environment were done in order to create necessary awareness for making optimal decisions in the field of the ways of economic management of these resources and helping to establish sustainable regional development strategy. in this study, preservation value of lilium ledebourii estimated using single bounded dichotomous cho...

2008
Wenbo Li Qiuwen Zhang

Data fusion methods are often employed to balance contradiction between spectral information and spatial information of remotely sensed images. The fused images formed by an effective data fusion method based on remotely sensed data should have both high spectral information preservation with Low Spatial Resolution (LSR) images and high spatial information preservation with High Spatial Resolut...

2004
KAREN K. NAKASONE STEPHEN W. PETERSON Karen K. Nakasone

Maintaining and preserving fungal cultures are essential elements of systematics and biodiversity studies. Because fungi are such a diverse group, several methods of cultivation and preservation are required to ensure the viability and morphological, physiological, and genetic integrity of the cultures over time. The cost and convenience of each method, however, also must be considered. We enco...

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