نتایج جستجو برای: k migration filter

تعداد نتایج: 633053  

2017
Jung Hyeon Lim Weon Yong Lee Yong Joon Ra Jae Han Jeong Bong Suk Park Ho Hyun Ko

A 20-year-old man presented with a femur fracture and epidural hemorrhage (EDH) following a fall. One month after fracture surgery, swelling developed in both legs, and he was diagnosed as having a deep-vein thrombosis and pulmonary embolism. A retrievable inferior vena cava filter (IVCF) was inserted, because EDH is a contraindication to anticoagulants. Four months later, he complained of abdo...

2010
Daisuke Okanohara Yuichi Yoshida

We consider a problem for storing a map that associates a key with a set of values. To store n values from the universe of size m, it requires log2 ( m n ) bits of space, which can be approximated as (1.44 + n) log2 m/n bits when n ≪ m. If we allow ε fraction of errors in outputs, we can store it with roughly n log2 1 ε bits, which matches the entropy bound. Bloom filter is a wellknown example ...

Journal: :Mediators of Inflammation 1998
F Aglas J Hermann G Egger

Rheumatoid arthritis (RA) patients are at higher risks of bacterial infection than healthy subjects. Polymorphonuclear leukocytes (PMN) are the first line of nonspecific cellular defence against these infections. We tested the hypothesis that abnormal directed migration of PMN may be one reason for the increased infection rate of RA patients. PMN migration was investigated in 68 peripheral bloo...

Journal: :The Journal of Experimental Medicine 1975
R A Clark J I Gallin A P Kaplan

Histamine diphosphate was shown to selectively attract human eosinophils from mixed granulocyte populations when over 20% eosinophils were used in a modified Boyden chamber chemotactic assay system. This effect of histamine is abolished by incubation with diamine oxidase (histaminase) and was generated by decarboxylation of L-histidine. A linear dose dependent increase in eosinophil migration w...

2015
Jon T. Sack Drew C. Tilley

C o m m e n t a r y All known K + channels use the same molecular architecture to achieve K + selectivity. Selectivity filters, even from distantly related K + channels, appear nearly identical in atomic resolution crystal structures; remarkably, the deviation in the coordinates of K +-coordinating backbone carbonyls is less than the uncertainty in the mod-Brohawn et al., 2012). Although retain...

Journal: :Neural Networks 1993
Haruo Kobayashi Takashi Matsumoto Tetsuya Yagi Takuji Shimmi

-Layered architecture is proposed for solving a class o f regularization problems in image processing. There are two major hurdles in the implementation of regularization filters with second or higher order smoothness constraints: ( a ) Stability: With second or higher order constraints, a direct implementation of a regularization filter necessitates negative conductance which, in turn, gives r...

2011
José M. Albert Marta R. Casanova Jorge Mateu Vicente Orts

In this paper, we propose an analytical and methodological comparison between two of the most known distance-based methods in the evaluation of the geographic concentration of economic activity. These two methods are Ripley’s K function, a cumulative function popularised by Marcon and Puech (2003) that counts the average number of neighbours of each point within a circle of a given radius, and ...

2003
Ling Bai ZhenBo Li Ping Guo

K e y w o r d s : Kalman Filter; Principal Component Analysis; Stellar Spectral Data; RBF Neural Networks. 1 I n t r o d u c t i o n Current and future large astronomical surveys will yield multiparameter databases on millions or even billions of objects. The scientific exploitation of these will require powerful, robust, and automated classification tools tailored to the specific survey. Partl...

A well-known clustering algorithm is K-means. This algorithm, besides advantages such as high speed and ease of employment, suffers from the problem of local optima. In order to overcome this problem, a lot of studies have been done in clustering. This paper presents a hybrid Extended Cuckoo Optimization Algorithm (ECOA) and K-means (K), which is called ECOA-K. The COA algorithm has advantages ...

1998
A. T. Alouani

When tracking with multi-sensor systems, the set of sensors used may be asynchronous and there may be communications delays between sensor platforms and the fusion center. Despite these conditions, it is desirable that each sensor maintains an accurate track. It has been recognized for some time that the use of a multiple model filter is superior to the use of a single model filter for tracking...

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