نتایج جستجو برای: diameter of head

تعداد نتایج: 21182009  

2012
Sylvia Rueda J. Alison Noble Aris T. Papageorghiou Alison Noble Sana Fathima Mohammad Yaqub Caroline Knight Aris Papageorghiou

Our fully automatic method to compute the biparietal diameter (BPD) and occipitofrontal diameter (OFD) from fetal ultrasound images is based on fitting an ellipse modelling the head contour of the fetus to ultrasound images. This is achieved by minimizing a cost function with respect to the parameters of the ellipse using a global multiscale multistart Nelder-Mead algorithm.

2012
Alessandro Foi Matteo Maggioni Antonietta Pepe Jussi Tohka

Our fully automatic method to compute the biparietal diameter (BPD) and occipitofrontal diameter (OFD) from fetal ultrasound images is based on fitting an ellipse modelling the head contour of the fetus to ultrasound images. This is achieved by minimizing a cost function with respect to the parameters of the ellipse using a global multiscale multistart Nelder-Mead algorithm.

Journal: :The Annals of occupational hygiene 1996
E Kauffer J C Vigneron Fabriès M A Billon-Galland P Brochard

A new static device, the CATHIA sampling head, based on the collection of the thoracic fraction is proposed for the assessment of the airborne concentration of asbestos fibres by transmission electron microscopy. By comparison with a standard aerosol sampling head, it has been shown that this sampler reduces the total mass concentration, but does not introduce any change in the most common inde...

Journal: :Magnetic resonance in medicine 2002
Qing X Yang Jinghua Wang Xiaoliang Zhang Christopher M Collins Michael B Smith Haiying Liu Xiao-Hong Zhu J Thomas Vaughan Kamil Ugurbil Wei Chen

Radiofrequency (RF) field wave behavior and associated nonuniform image intensity at high magnetic field strengths are examined experimentally and numerically. The RF field produced by a 10-cm-diameter surface coil at 300 MHz is evaluated in a 16-cm-diameter spherical phantom with variable salinity, and in the human head. Temporal progression of the RF field indicates that the standing wave and...

قدرت‌اله سعیدی, ,

Sunflower (Helianthus annuus L.) can have an important role in vegetable oil production. Also, appropriate soil fertility is necessary to obtaine higher seed yield and quality of the crop. This experiment was conducted to investigate the effect of fertilizer treatments of macro and micronutrients on seed yield and other agronomic traits in sunflower. The effects of thirteen fertilizer treatemts...

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

1. to determine whether difference in birth body mass influenced growth performance in pipistrellus kuhlii we studied a total of 12 captive-born neonates. bats were assigned to two body mass groups: light birth body mass (lbw: 0.89 ± 0.05, n=8) and heavy birth body mass (hbw: 1.35 ± 0.08, n=4). heavier body mass at birth was associated with rapid postnatal growth (body mass and forearm length) ...

Journal: :Biomedical journal 2015
Chandni Gupta Sneha Guruprasad Kalthur J C Malsawmzuali Antony Sylvan D'souza

BACKGROUND Knowledge of the size and shape of radial head is essential for construction of radial head prosthesis. Further, the measurements of bicipital tuberosity and its angular relationship to radial head are significant in surgical techniques, like in the reconstruction of biceps tendon. Even the morphometry of the distal radius is significant in numerous clinical orthopedic situations suc...

Journal: :journal of dental research, dental clinics, dental prospects 0
taraneh movahhed - assistant professor of pediatric dentistry, dental material research center, department of community oral health, school of dentistry, mashhad university of medical sciences, mashhad, iran behjatalmolook ajami associate professor of pediatric dentistry, department of community oral health, school of dentistry, mashhad university of medical sciences, mashhad, iran mojtaba dorri dds msc phd, college london dental institute, university college london, london, uk nima biouki postgraduate student of oral and maxillofacial radiology, school of dentistry, tabriz university of medical sciences, tabriz, iran hadi ghasemi assistant professor of community dentistry, department of community oral health, school of dentistry, shahid beheshti university of medical sciences, tehran, iran mohammad taghi shakeri associate professor, school of medicine, department of biostatics, mashhad university of medical sciences, mashhad, iran

background and aims. tooth loss may lead to mastication disability, which in turn has important impact on individual’s quality of life. social and psychological factors have been shown to be associated with tooth loss. this study aimed to investigate the social determinants and prevalence of tooth loss, and presence of functional dentition among female heads of household under support of welfar...

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