نتایج جستجو برای: reference curve

تعداد نتایج: 394411  

Journal: :iranian journal of medical physics 0
mohammad javad t ahmasebi associated professor, medical physics & radiotherapy dept., golestan hospital, ahwaz university of medical sciences, ahwaz, iran mohammad ali behrooz professor, medical physics dept., ahwaz university of medical sciences, ahwaz, iran shole arvandi assistant professor, radiotherapy & oncology dept., golestan hospital, ahwaz university of medical sciences, ahwaz, iran davood khezerloo m.sc. medical physics dept., ahwaz university of medical sciences, ahwaz, iran mojtaba karbalai m.sc. medical physics dept., golestan hospital, ahwaz university of medical sciences, ahwaz, iran

introduction: nowadays,  considerable developments  in  the field  of  radiotherapy have  been  achieved.  they  include  the  advances  made  in  the  equipments  and  treatment  planning  techniques  which  require  highly complex calculations. such achievements have made it possible to treat cancer patients not only  with  higher  radiation  dose  but  also  with  higher  precision  and  con...

2007
S Wo

IT is intuitively obvious that if a simple continuous curve is given in the (x, 2/)-plane, and a continuous distribution of values along the curve, there will exist functions of x and y which are continuous in both variables together, and which take on the prescribed values along the curve. It is the purpose of the present note to give an analytic proof of this fact, by elementary means, and, i...

2014
Primož POREDOŠ Dušan ČELAN Janez MOŽINA Matija JEZERŠEK

We present the development of a novel method for the automatic determination of a spatial spine curve based on the measured 3D shape of the human back (automatic curve) with the 3D laser profilometer. The measuring system is based on a line laser triangulation, its measuring range at the distance of 1 m is 300×700×500 mm, the measurement takes about 10 seconds and the single point measurement a...

2016
Boya Li Huixia Yang Yumei Wei Rina Su Chen Wang Wenying Meng Yongqing Wang Lixin Shang Zhenyu Cai Liping Ji Yunfeng Wang Ying Sun Jiaxiu Liu Li Wei Yufeng Sun Xueying Zhang Tianxia Luo Haixia Chen Lijun Yu

OBJECTIVE To use Z-scores to compare different charts of femur length (FL) applied to our population with the aim of identifying the most appropriate chart. METHODS A retrospective study was conducted in Beijing. Fifteen hospitals in Beijing were chosen as clusters using a systemic cluster sampling method, in which 15,194 pregnant women delivered from June 20th to November 30th, 2013. The mea...

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