نتایج جستجو برای: deteriorated texture

تعداد نتایج: 48966  

Journal: :Materials Characterization 2021

Abstract The interplay of microstructural mechanisms controlling the deformation-induced martensitic phase transformations and texture formation in all phases a metastable austenitic Cr-Mn-Ni steel was investigated using situ synchrotron radiation diffraction under uniaxial compression ex electron backscatter diffraction. With increasing deformation, originally fully transformed to mixture γ-au...

Journal: :Materials Science and Engineering A-structural Materials Properties Microstructure and Processing 2021

The present work deals with the microstructure and texture evolutions of a TWIP high entropy alloy at various temperatures. Toward this end, tensile tests were conducted temperatures ranging from 298 to 873 K under strain rate 0.001s-1. experimented material exhibited an extraordinary room temperature hardening behavior, in respect both instantaneous exponent values. This resulted acceptable ul...

Esfandiar Zebardast Maliheh Babakhani, Mohammadsaied Izadi

Deteriorated urban textures are areas of a city isolated from developmental life cycle. They have turned into the focus of problems and inefficiencies. The evaluation of renewal actions claims to promote residents’ satisfaction in some cases. At the same time of improving objective and economic quality of life, there are claims regarding the lack of any improvements in their subjective quality ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت معلم تهران - دانشکده علوم 1372

in this study reference as one of the five cohesive devices in the achievement of textuality in english and persian narrative/descripitive written texts is focused on and analysed . to do so , the theoretical framework elaborated by halliday and hasan (1976) and its version adapted by the writer to match the sub-types of reference in farsi are applied to the analysis of reference in english and...

2003
Gjenna Stippel Ivana Duskunovic Alexandra Pizurica Filip Rooms Wilfried Philips Ignace Lemahieu

White Matter Damage (leukomalacia) is detected by the visual inspection of ultrasound images of the neonatal brain by an expert. A need for a (semi) computerised way of segmenting the infected regions, in order to make quantitative measurements as an aid to the subjective diagnosis, is felt. The performance of snakes for this purpose, however, is heavily deteriorated by the presence of speckle ...

2012
Romain Mavudila Kongo Mohammed Cherkaoui Lhousaine Masmoudi Najem Hassanain

In this paper, an efficient DT-CWT based method for medical ultrasound images despeckling is presented. The ultrasound images are often deteriorated by speckle noise, this noise is a random granular texture that obscures anatomy in ultrasound images and degrades the detectability of low-contrast lesions. Speckle noise occurrence is often undesirable, since it affects the tasks of human interpre...

Journal: :Proceedings of The Japanese Association of Animal Models for Human Diseases 1989

Journal: :Archiwum Instytutu Inżynierii Lądowej 2017

2005
Victor Nizet

The carotenoids that make carrots orange also produce the golden hue of Staphylococcus aureus. Such pigments appear to be a golden armor, shielding this pathogen from oxidants that mammalian neutrophils release, thus accounting for some of this microorganism’s virulence, according to Victor Nizet at the University of California, San Diego (USCD) and his collaborators. Perhaps these colorful vir...

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