نتایج جستجو برای: freq

تعداد نتایج: 234  

2007
Frédéric Pennerath Amedeo Napoli

The main practical problem encountered with frequent subgraph search methods is the tens of thousands of returned graph patterns that make their visual analysis impossible. In order to face this problem, are introduced a very restricted family of relevant graph patterns called the most informative patterns along with an algorithm to mine them and associated experimental results. In graph-based ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده منابع طبیعی 1391

خشکسالی به عنوان بلای طبیعی و پدیده ای اجتناب‏ناپذیر، از دیرباز در پهنه وسیع کشورهای مختلف به خصوص کشورهای مستقر در مناطق گرم و خشک به کرات وقوع یافته و می یابد. در سال های اخیر محاسبه و بررسی شاخص خشکسالی جریان سطحی(sdi )به عنوان یکی از روش های پیش بینی خشکسالی هیدرولوژیک مورد توجه محققان قرار گرفته است.در تحلیل فراوانی این شاخص در حوزه هایی با طول دوره آماری کوتاه مدت و حوزه های فاقد ایستگاه ...

Journal: :Annals of the Rheumatic Diseases 2022

Background Serum urate (SU) level is the strongest known causal predictor of clinical gout, but only ~20% with prolonged hyperuricemia develop motivating need for additional biomarkers risk prediction and stratification. The metabolome represents a compelling intermediate trait between genome phenome to elucidate disease mechanisms. Multiple cross-sectional studies prevalent gout from men in As...

2002
Robert M. French Martial Mermillod Alan Chauvin Paul C. Quinn Denis Mareschal

At the earliest ages of development, perceptual maturation is generally considered as a functional constraint to recognize or categorize the stimuli of the environment. However, using a computer simulation of retinal development using Gabor wavelets to simulate the output of the V1 complex cells (Jones & Palmer, 1987), we showed that reducing the range of the spatial frequencies from the retina...

2004
Jon Oberlander Alastair Gill

We are interested in generating text in a way which helps convey the writer’s personality. This has led us to consider the relationship between language production and personality from a Marrian perspective. We already have data to be covered at the computational level (comparative corpus analysis). We consider that findings at the implementation level (cognitive neuroscience) will help guide a...

2007
Ákos Németh László Szücs Lajos Nagy

This paper provides experimental and implementation details for various forms of multiple-input multiple-output (MIMO) cube antennas. Slot dipole antennas are used as basic elements of these MIMO antennas. Experimental results show that especially at higher frequencies of various wireless applications the additional loss of the printed antennas increase and therefore implementation of such ante...

1999
L. Ma Z. Zhao D. Liu J. Cao L. Wang K. Xue S. Wang H. Yu

The synchrotron radiation by the relativistic particles is a useful and important diagnostic tool to obtain various beam parameters. The visible light of the synchrotron radiation emitted in a bending magnet of the BEPC storage ring is reflected through the window by a watercooled mirror in the vacuum chamber and then directed by a remote controlled mirror onto the optical bench supporting the ...

1997
Dekang Lin

Most previous corpus-based algorithms disambiguate a word with a classifier trained from previous usages of the same word. Separate classifiers have to be trained for different words. We present an algorithm that uses the same knowledge sources to disambiguate different words. The algori thm does not require a sense-tagged corpus and exploits the fact that two different words are likely to have...

2015
Toshiyuki Miyata

ADAMTS13 is a plasma metalloprotease that specifically cleaves the plasma adhesive protein von Willebrand factor (VWF). VWF is a large plasma glycoprotein and mediates platelet adhesion at sites of vascular injury. VWF is synthesized in an ultralarge multimeric form that has a very strong platelet aggregation activity. VWF-induced platelet aggregation depends on its multimeric size, which is co...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده منابع طبیعی 1392

مقدار و فراوانی وقایع غیرمنتظره در هیدرولوژی مانند احتمال وقوع شدت و مدت خشکسالی هیدرولوژیک در اکثر نقاط جهان از اهمیت زیادی برخوردار است. به طوری که در سال های اخیر وقوع خشکسالی ها خسارت های فراوانی را بر جای گذاشته است. بررسی احتمال وقوع شدت خشکسالی ها و مدت آن بعنوان یک تحلیل استوکاستیک از وقوع دوره های خشکسالی بشمار می آید. در این مطالعه این دو ویژگی خشکسالی بر روی ایستگاه های هیدرومتری منت...

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