نتایج جستجو برای: spatial correlation

تعداد نتایج: 731324  

2010
Tetsu Matsukawa Takio Kurita

This paper presents scene classification methods using spatial relationship between local posterior probabilities of each category. Recently, the authors proposed the probability higher-order local autocorrelations (PHLAC) feature. This method uses autocorrelations of local posterior probabilities to capture spatial distributions of local posterior probabilities of a category. Although PHLAC ac...

Journal: :Remote Sensing 2016
Francisco Flores-de-Santiago John M. Kovacs Jinfei Wang Francisco Flores-Verdugo Chunhua Zhang Fernando González-Farías

The purpose of this investigation was to determine the seasonal relationships (dry vs. rainy) between reflectance (400–1000 nm) and leaf pigment contents (chlorophyll-a (chl-a), chlorophyll-b (chl-b), total carotenoids (tcar), chlorophyll a/b ratio) in three mangrove species (Avicennia germinans (A. germinans), Laguncularia racemosa (L. racemosa), and Rhizophora mangle (R. mangle)) according to...

Journal: :CoRR 2018
Sarah Marzen James P. Crutchfield

Experimentalists have observed phenotypic variability in isogenic bacteria populations. We explore the hypothesis that in fluctuating environments this variability is tuned to maximize a bacterium’s expected log growth rate, potentially aided by epigenetic markers that store information about past environments. We show that, in a complex, memoryful environment, the maximal expected log growth r...

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    Urban planning has gone from the past to the present day to a greater extent based on physical factors, to the extent that the basis of urban planning plans and urban plans influenced urban development and physical spaces. It's The city is the product of complex economic and social relations and its spatial heterogeneity reflects the processes of widespread socio-economic-cultural-social ...

Journal: :Accident; analysis and prevention 2013
Yiyi Wang Kara M Kockelman

This work examines the relationship between 3-year pedestrian crash counts across Census tracts in Austin, Texas, and various land use, network, and demographic attributes, such as land use balance, residents' access to commercial land uses, sidewalk density, lane-mile densities (by roadway class), and population and employment densities (by type). The model specification allows for region-spec...

1997
BRADLEY M. PETERSON

Continuum and emission-line variability of active galactic nuclei provides a powerful probe of microarcsecond scale structures in the central regions of these sources. In this contribution, we review basic concepts and methodologies used in analyzing AGN variability. We develop from first principles the basics of reverberation mapping, and pay special attention to emission-line transfer functio...

Journal: :تحقیقات آب و خاک ایران 0
فاضل رحمانی پور کارشناسی ارشد، دانشگاه تربیت مدرس حسینعلی بهرامی دانشیار، دانشگاه تربیت مدرس سیما رحیمی بندرآبادی عضو هیات علمی پژوهشکده حفاظت خاک و آبخیزداری کشور زهرا فریدونی کارشناسی ارشد، دانشگاه تربیت مدرس

continuous soil quality evaluation in is necessary agricultural regions to sustainable soil management and profitable agricultural production. the objectives of this study were comprised of an evaluation of soil quality utilizing integrated quality index (iqi) along with its spatial distribution in qazvin province. iqi was calculated and its spatial changes analyzed using different interpolatio...

2003
C. M. H. UNAL D. N. MOISSEEV

Combining Doppler and polarimetric information is advantageous for atmospheric studies. On the one hand, Doppler information gives insight into the microphysical and dynamic properties of radar targets, that is, radial velocity and its variability. The polarization diversity, on the other hand, has a strong link to the microphysical properties of targets such as shape and orientation. Polarimet...

Journal: :مرتع و آبخیزداری 0
حسین اسلامی دانش آموختة دانشگاه آزاد اسلامی، واحد علوم و تحقیقات، گروه آبخیزداری، تهران، ایران علی سلاجقه استاد دانشکدة منابع طبیعی، دانشگاه تهران شهرام خلیقی سیگارودی دانشیار دانشکدة منابع طبیعی، دانشگاه تهران حسن احمدی استاد دانشگاه آزاد اسلامی، واحد علوم و تحقیقات، گروه آبخیزداری، تهران، ایران شمس الله ایوبی دانشیار گروه خاک شناسی، دانشکدة کشاورزی، دانشگاه صنعتی اصفهان

rainfall erosivity is the ability of rainfall to detach the soil particles. this study was conducted to evaluate spatial variability of rainfall erosivity indices in khouzestan province. the point data of indices (ei30, aim, ke>1 and onchev indices) in 74 stations were used to generate spatial erosivity maps through deterministic and geostatistical interpolation methods (radial basis functions,...

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