نتایج جستجو برای: skew equienergetic

تعداد نتایج: 9364  

Journal: :Journal of AAPOS : the official publication of the American Association for Pediatric Ophthalmology and Strabismus 2010
Agnes M F Wong

Skew deviation is a vertical strabismus caused by a supranuclear lesion in the posterior fossa. Because skew deviation may clinically mimic trochlear nerve palsy, it is sometimes difficult to differentiate the 2 conditions. In this review we compare the clinical presentations of skew deviation and trochlear nerve palsy and examine the pathophysiology that underlies skew deviation. We then descr...

2008
PETER R. W. MCNAMARA

In recent years, there has been considerable interest in showing that certain conditions on skew shapes A and B are sufficient for the difference sA − sB of their skew Schur functions to be Schur-positive. We determine necessary conditions for the difference to be Schur-positive. Our conditions are motivated by those of Reiner, Shaw and van Willigenburg that are necessary for sA = sB , and we d...

Journal: :Computational Statistics & Data Analysis 2010
Anastasios Panagiotelis Michael S. Smith

We develop a Bayesian approach for the selection of skew in multivariate skew t distributions constructed through hidden conditioning in the manners suggested by either Azzalini and Capitanio (2003) or Sahu, Dey and Branco (2003). We show that the skew coefficients for each margin are the same for the standardized versions of both distributions. We introduce binary indicators to denote whether ...

ژورنال: :نشریه جغرافیا و برنامه ریزی 2014
سعید جهانبخش اصل رقیه روشنی

در این تحقیق به بررسی وارونگی دمای شهر تبریز با استفاده از اطلاعات رادیوسوند، نقشه اسکیوتی و نقشه­های سینوپتیک، طی دوره زمانی 2008- 2004 در مقیاس روزانه، ماهانه و فصلی پرداخته شد. پس از بررسی داده­ها، ابتدا روزهایی با شرایط وارونگی دمای ضعیف، متوسط، شدید و بسیار شدید مشخص شد و سپس الگوی سینوپتیکی نمونه­های بسیار شدید، مربوط به یک روز قبل و یک روز بعد از اوج شدت وارونگی با استفاده از نقشه­های سی...

ژورنال: اندیشه آماری 2012
Bahrami, Mohammad, Maghami, Mohammad Mehdi,

In this manuscript first a brief introduction to the Skew-t and Weighted exponential distributions is considered and some of their important properties will be studied. Then we will show that the Skew-t distribution is prefered to the Weighted exponential distribution in fitting by using the real data. Finally we will prove our claim by using the simulation method.

Journal: :Journal of Combinatorial Theory, Series A 2022

A skew-morphism of a finite group G is permutation σ on fixing the identity element such that product 〈 〉 with left regular representation forms . This called skew-product The was introduced as an algebraic tool to investigate Cayley maps. In this paper, we characterize skew-products skew-morphisms nonabelian characteristically simple groups (see Theorem 1.2 ) and corresponding maps 1.6 ).

Journal: :Des. Codes Cryptography 2014
Delphine Boucher Felix Ulmer

In this work the definition of codes as modules over skew polynomial rings of automorphism type is generalized to skew polynomial rings, whose multiplication is defined using an automorphism and a derivation. This produces a more general class of codes which, in some cases, produce better distance bounds than module skew codes constructed only with an automorphism. Extending the approach of Gab...

2007
Seiichi Uchida Megumi Sakai Masakazu Iwamura Shinichiro Omachi Koichi Kise

A novel technique for estimating geometric deformations is proposed and applied to document skew (i.e., rotation) estimation. The proposed method possesses two novel properties. First, the proposed method estimates the skew angles at individual connected components. Those skew angles are then voted to determine the skew angle of the entire document. Second, the proposed method is based on insta...

1992
David J. DeWitt Jeffrey F. Naughton Donovan A. Schneider S. Seshadri

We present an approach to dealing with skew in parallel joins in database systems. Our approach is easily implementable within current parallel DBMS, and performs well on skewed data without degrading the performance of the system on non-skewed data. The main idea is to use multiple algorithms, each specialized for a di erent degree of skew, and to use a small sample of the relations being join...

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