Background: The radiation dose received by contralateral breast (CLB) is one of the concerns of breast radiotherapy, because it may lead to the induction of secondary breast cancer. The aim of this study was to evaluate the CLB surface dose in the breast treatment in Yazd radiotherapy center. Materials and Methods: The surface dose of CLB was measured using TLD dosimetry in 50 cancer breast pat...

Introduction: Wedge filters are used in radiotherapy to modify photon beam and improve dose uniformity in the target volume. Determination of wedge dose distribution is important to improve treatment planning accuracy. The utilization of treatment planning software to obtain dose distribution is not always available. In this work an analytical model has been developed to calcu...

Panoramic cameras have become popular because they provide impressive and immerse experience of the scene and allow several interesting applications. Among the large variation of panoramic camera systems, we have focused on concentric panoramic imaging with a frame camera. In order to establish the concentric image acquisition, the camera mount must be calibrated so that the projection centre o...

BACKGROUND Wedge filters are commonly used in radiation oncology for eliminating hot spots and creating a uniform dose distribution in optimizing isodose curves in the target volume for clinical aspects. These are some limited standard physical wedges (15°, 30°, 45°, 60°),or creating an arbitrary wedge angle, like motorized wedge or dynamic wedge,... The new formulation is presented by the comb...

In India, there have been frequent incidents of accidental strangulation due to entangling of drapes used in the traditional attire of females like saree, chunni/dupatta, shawls, stoles, scarf etc during transportation, motorized machinery and instruments at workplace, factories, and home equipment. We report case of a female victim of accidental strangulation when her dupatta got entrapped in ...

In this paper, we present a method for controlling a motorized, stringdriven marionette using motion capture data from human actors and data recorded while a traditional marionette is operated by a professional puppeteer. We are interested in using motion capture data of a human actor to control the motorized marionette as a way of easily creating new performances. We use data from the hand-ope...

Abstract Bearingless motorized spindle is a kind of structure that combines bearingless motor with spindle. It has the advantages and motor, which can further improve speed machine tool However, its complex electromechanical coupling relationship between subsystems make it difficult to control operation process accurately. In this paper, voltage decoupling method used decouple torque suspension...

Abstract This paper investigates the thermal modeling challenges of high-speed motorized spindles up to 40,000 rpm. The expansion and deflection are critical determinants for resulting tool center point displacement achievable machining accuracy machine tools. In order compensate, finite element reduced physical models (digital twins) therefore require an accurate understanding boundary conditi...

This paper presents a simple and efficient method of calibrating the intrinsic camera parameters for all the lens settings of a motorized zoom lens. We fix the aperture setting and perform the camera calibration, adaptively, over the ranges of the zoom and focus settings. Bilinear interpolation is used to provide the values of the intrinsic camera parameters for those lens settings where no obs...