نتایج جستجو برای: echo pattern changes in consecutive cycles

تعداد نتایج: 17063637  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده ادبیات و علوم انسانی 1392

in new management approaches, in the organizations with inflexible structure, existing of red tapes and interruptions caused by limitations and also non-compliance with environmental changes, create demotivation among staff. with regard to the influence of job motivational potential and its relationship to the type of organizational structure( enabling and dissuasive), the goal of this research...

پایان نامه :0 1392

nowadays in trade and economic issues, prediction is proposed as the most important branch of science. existence of effective variables, caused various sectors of the economic and business executives to prefer having mechanisms which can be used in their decisions. in recent years, several advances have led to various challenges in the science of forecasting. economical managers in various fi...

Journal: :iranian journal of medical physics 0
mehravar rafati ph.d. in medical physics, medical physics dept., tarbiat modares university, tehran, iran manijhe mokhtari dizaji prof., medical physics dept., tarbiat modares university, tehran, iran hojabr saberi associate professor, radiology dept., tehran university of medical sciences, imaging center of imam khomaini hospital, tehran, iran effat soleimani ph.d. student in medical physics, medical physics dept., tarbiat modares university, tehran, iran

introduction: in this study, a computer analysis method based on a block matching algorithm is presented to extract the longitudinal movement of the carotid artery wall using consecutive ultrasonic images. a window (block) is selected as the reference block in the first frame and the most similar block to the reference one is found in the subsequent frames. material and methods: the program was...

ژورنال: سلامت و مراقبت 2019

Background & objectives: Primary dysmenorrhea is one of the common problems of women in reproductive age, disrupting the quality of life young women, especially when accompanied with symptoms such as headache, fatigue, nausea, vomiting, diarrhea and impatience. The present study aimed to investigate the effect of Fennel on reduction of symptoms associated with pain in primary dysmenorrhea. Meth...

2013
Esther G. Sarabia Jose R. Llata García Sandra Robla Carlos Torre-Ferrero Juan Pérez-Oria

In this work, an analysis of the transmission of ultrasonic signals generated by piezoelectric sensors for air applications is presented. Based on this analysis, an ultrasonic response model is obtained for its application to the recognition of objects and structured environments for navigation by autonomous mobile robots. This model enables the analysis of the ultrasonic response that is gener...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1393

due to extraordinary large amount of information and daily sharp increasing claimant for ui benefits and because of serious constraint of financial barriers, the importance of handling fraud detection in order to discover, control and predict fraudulent claims is inevitable. we use the most appropriate data mining methodology, methods, techniques and tools to extract knowledge or insights from ...

Journal: Geopersia 2018

In this study, the salt weathering effects on engineering properties and weight loss potential of three types of granitoid rocks were investigated. Sodium and magnesium sulfates tests were performed on core and aggregate samples. The cyclic salt weathering tests on core samples were done up to 90 cycles, while these tests on aggregate samples were done up to 40 cycles. The results showed that d...

1999
Jennifer Seitzer James P. Buckley Alvaro E. Monge

Inductive computing, comprised of machine learaing, data mining, and knowledge discovery, seeks to extract causal patterns from data. Meta-patterns are patterns of extrax:ted patterns. The meta-pattern we study here is the cycle. In this paper, we illustrate the ubiquity of cycles anti argue that as responsible knowledge engineers, we need to identify and actively seek cycles out of data. We pr...

Journal: :Journal of biomechanics 2011
Sarah Duenwald Hirohito Kobayashi Kayt Frisch Roderic Lakes Ray Vanderby

The mechanical behavior of tendons has been well studied in vitro. A noninvasive method to acquire mechanical data would be highly beneficial. Elastography has been a promising method of gathering in vivo tissue mechanical behavior, but it has inherent limitations. This study presents acoustoelasticity as an alternative ultrasound-based method of measuring tendon stress and strain by reporting ...

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