نتایج جستجو برای: hill and valley regions

تعداد نتایج: 16856138  

2006
Lisa Valdivia David Nix Mark Wright Elizabeth Lindberg Timothy Fagan Donald Lieberman T'Prien Stoffer Neil M. Ampel John N. Galgiani

The early manifestations of coccidioidomycosis (valley fever) are similar to those of other causes of community-acquired pneumonia (CAP). Without specific etiologic testing, the true frequency of valley fever may be underestimated by public health statistics. Therefore, we conducted a prospective observational study of adults with recent onset of a lower respiratory tract syndrome. Valley fever...

Journal: :Earth Science Research 2021

The reservoir in different parts of buried-hill draping zone is often quite different, so it great significance to clarify the characteristics for exploration and development. Based on core, well logging, seismic data production data, oil layer Ⅱ lower second member Dongying Formation L oilfield, Bohai Bay Basin, offshore eastern China are systematically studied. Analyses facies, well-seismic c...

Journal: :تحقیقات مهندسی کشاورزی 0
پروین عشرت آبادی استادیار مؤسسه استاندارد و تحقیقات صنعتی ایران منوچهر حامدی استاد گروه دانشکده مهندسی بیوسیستم دانشگاه پردیس کشاورزی و منابع طبیعی دانشگاه تهران

ten varieties of iranian soybeans are cultivated in different areas of the country; persia or sahar (sr), hill (hl), williams (wz), gorgan 3 (gn), clarke (kl), hawkey (hk), zaan (zn), harcor (hr), dare (dr) and simes (ss), grown in tropical regions. samples of these 10 varieties were obtained from the institute of plant and seed research. after sample preparation, their oils were extracted and ...

2005
STEPHEN H. HARTZELL THOMAS H. HEATON

Near-source strong motion velocity records and teleseismic short-period P waveforms are modeled to obtain the spatial and temporal distribution of slip for the 1984 Morgan Hill earthquake. Both forward modeling and constrained, leastsquares inversion techniques are used to interpret the strong motion velocity waveforms in the frequency range of approximately 0.2 to 2.0 Hz. These data support a ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1389

the quest for power has formed much of the world history especially in 20th and 21st centuries. oil (energy) particularly after industrial revolution has been a tool for conquest and power and has been transformed to a geopolitical issue. from a geopolitical point of view this has been the case for the last two centuries in central asia and caucasus. central asia and caucasus has always been...

2005
FRANK HAUSSER AXEL VOIGT

We study anisotropic surface diffusion of curves with a small corner energy regularization. The regularization allows the use of nonconvex free energy densities and turns the evolution law into a 6th order geometric equation. Using a semi-implicit time discretization, we present a variational formulation of this equation for parametric curves, leading to a discretization based on linear finite ...

Journal: :Neurocomputing 2006
Jun Zhang De-Shuang Huang Tat-Ming Lok Michael R. Lyu

This paper proposes a novel adaptive sequential niche particle swarm optimization (ASNPSO) algorithm, which uses multiple subswarms to detect optimal solutions sequentially. In this algorithm, the hill valley function is used to determine how to change the fitness of a particle in a sub-swarm run currently. This algorithm has strong and adaptive searching ability. The experimental results show ...

Journal: :Nano letters 2005
Kenji Ohmori Y L Foo Sukwon Hong J G Wen J E Greene I Petrov

Families of very high-index planes, such as those which bifurcate spontaneously to form a hill-and-valley structure composed of opposing facets, provide natural templates for the directed growth of position-controlled self-organized nanostructures with shapes determined by the facet width ratio R. For example, deposition of a few ML of Ge on Si(173 100 373), corresponding to R(113/517) = 1.7, r...

2014
Charles Chemel P. Burns C. Chemel

A numerical model has been used to characterize the development of a region of 6 enhanced cooling, in an alpine valley with a width of order 10 km, under decoupled stable 7 conditions. The region of enhanced cooling develops largely as a region of relatively dry 8 air that partitions the valley atmosphere dynamics into two volumes, with air flows partially 9 trapped within the valley by a devel...

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