نتایج جستجو برای: contrast sensitivit

تعداد نتایج: 392879  

Journal: :iranian journal of medical physics 0
s. heydarian m.sc. in optometry, faculty of para medical sciences, mashhad university of medical sciences, mashhad, iran , m. jabarvand behrooz associate professor, ophthalmology dept., farabi hospital, tehran university of medical sciences, tehran, iran e. jafarzadehpour assistant professor, optometry dept., faculty of rehabilitation sciences, iran university of medical sciences, tehran, iran r. vahabbi m.sc. in optometry, faculty of rehabilitation sciences, iran university of medical sciences, mashhad, iran

introduction: contrast sensitivity is one of the most important psychophysical tests that may be used for the evaluation of refractive state of eye and retinal image quality. yellow vs. blue color contrast sensitivity may be more suitable in this regard. materials and methods: thirty myopic eyes were considered in this study. yellow vs. blue color contrast sensitivity was evaluated under the sa...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد - دانشکده علوم انسانی 1391

the rise and stublishment of safavid dynasty was depend on triangle of tasavof, tashayo and royalty, kings legitimized their power upon these. therefore for the understanding the functions of that period we must explore the role of this elements. although application and emphsise upon dignities such as; complete mentor (morshede kamel), deputy of absent imam (nayebe imame ghayeb), and god’s sha...

Journal: :Expert Syst. Appl. 2013
George D. C. Cavalcanti Ing Ren Tsang José Francisco Pereira

This paper proposes two feature extraction technique s that minimizes the effects of distortions generated by variations in illumination, rotation and, head pose in automatic face recognition systems. The proposed techniques are Modular Image Principal Component Analysis (MIMPCA) and weighted Modular Image Princ ipal Component Analysis (wMIMPCA). Both techniques are based on PCA and they use th...

Journal: :Vision research 1978
M Powers S S Easter

-Absolute visual thrrshold was measured in dark-adapted goldfish. using classical conditioning of heart and respiration rates. For threshold detection of a 137’ diameter stimulus near the peak of the rod pigment’s sensitivit?. only 1 quantum was incident for every 2m rods. and 100-830 p~otoisomerizations were needed for vision. Spectral sensitivity was also determined at absolute rhreshold. usi...

2016
Vlatka Bilas

The main hypothesis of the paper states that banking loans to private individuals growth rate correlates with the personal consumption growth rate in Croatia. Following the Engle-Granger cointegration and Johansen cointegration approaches on yearly data samples from 1996 to 2012, we found banking loan to private individuals annual growth rate and personal consumption annual growth rate in Croat...

Journal: :international journal of advanced biological and biomedical research 2014
mehrdad yadegari seyedeh zeinab peighambarzadeh

determination of normal gastric emptying time and small intestinal transit time are useful in detecting gastrointestinal motility disorders and partial obstructions of the pylorus or small intestine. this study was conducted to evaluate iodixanol as a contrast agent in the gastrointestinal tract in new zealand white rabbit. twelve clinically healthy adult rabbits were prepared and kept for two ...

2005
Junji Nishimura Suzanne Moreland Hee Yul Ahn Tomoyuki Kawase Robert S. Moreland

coccus a-toxin-permeabilized vascular smooth muscle. Rabbit small mesenteric arteries permeabilized with ar-toxin were mounted for isometric or isotonic force recording or were processed for determination of myosin light chain (MLC) phosphorylation levels. Addition of 100 nM ET-1 plus 10 ,uM GTP significantly enhanced myofilament Ca2' sensitivity as compared with the addition of Ca2' alone (EC5...

Journal: :Jurnal Sistem Informasi 2023

Classification in supervised learning is a way to find patterns data base that the classes are already known. In classification of machine learning, there term called ensemble classifier. The workings classifier aimed improve model accuracy and optimize performance. This study aims analyze comparison algorithms work with , including Random Forest, Support Vector Machine (SVM), AdaBoost. used Hu...

Journal: :JACC: Cardiovascular Imaging 2016

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