PATIENT’S SATISFACTION TOWARDS SERVICE QUALITY: A COMPARATIVE ANALYSIS OF GOVERNMENT AND MISSION HOSPITAL, MIRAJ
M. M. Samudre · international journal of research in computer application & management · 2015
Computers are widely used in the area of simulation, modeling. The main objective of such methods is to know the invisible and measurable properties of the object. Simulation methods are used to understand the molecular interactions and activity. Imaging is similar to simulation but is generally used at macroscopic level. There are different applications mainly in the medical diagnosis, architecture etc. Impedance tomography is one of the emerging methods of imaging and it has several advantages. In this paper researcher find the impedances at the non-measurable regions such as inside the object by combining centroid formula and line DDA algorithm. KEYWORDS impedance, object, modeling, non-measureable region, simulation. INTRODUCTION t’s very easy to find directly the impedances on the open surface but not inside the closed surface of an object. This paper gives an idea about, how we can calculate impedances inside closed surface of an object which is invisible with the help of few visible and measurable values on surface. OBJECTIVES OF THE RESEARCH 1. To understand the need of the calculation of the impedances 2. To define the mathematical problem 3. Design of algorithm and flowchart 4. Development of visualization package for the impedance tomography THEORETICAL BACKGROUND IMPEDANCE Impedance is one of the measurable quantity. It can be used to determine the hydration level of non biological objects. The basic formula for impedance is - Z = V/I Where, V and I are the potential and electric current respectively. It’s easy to find directly the impedances on the open surface but not inside the closed surface. LINE DDA ALGORITHM 1. Define the nodes, i.e end points in form of (x1,y1) and (x2,y2). 2. Calculate the distance between the two end points vertically and horizontally, i.e dx=|x1-x2| and dy=|y1-y2|. 3. Define new variable name ‘pixel’, and compare dx and dy values, if dx >dy then pixel=dx else pixel =dy. 4. dx=dx/pixel and dy=dy/pixel 5. x=x1; y=y1; 6. while (i CENTROID FORMULA Centroid of any object means central point of that object. To find centroid of any object we need to sum all the corner or known points and divide it by number of points. e.g. If there are 8 input points then we have to add all values of 8 points and divide it by 8 to get centroid of that object. The Centroid of a Triangle is the center of the triangle that can be calculated by using following formula. Where, C is the centroid of the triangle. x1,x2,x3 are the x-coordinate’s of the vertices of the triangle. y1,y2,y3 are the y-coordinate’s of the vertices of the triangle. FINDING INSIDE POINTS BY COMBINING LINE DDA ALGORITHM AND CENTROID FORMULA 1. Get input points and their respective values i.e. get few visible and measurable impedance values at their respective points. 2. Connect all input points of an object one by one in such a manner it will cover outer boundary of an object. All points on boundary and all points inside boundary create one surface of an object. 3. By using line drawing algorithm find out points on each boundary line of an object. 4. By using centroid formula find out central point of an object 5. By connecting central point to the each point on boundary line which will create number of lines inside the object as shown in figure below: I VOLUME NO. 5 (2015), ISSUE NO. 12 (DECEMBER) ISSN 2231-1009 INTERNATIONAL JOURNAL OF RESEARCH IN COMPUTER APPLICATION & MANAGEMENT A Monthly Double-Blind Peer Reviewed (Refereed/Juried) Open Access International e-Journal Included in the International Serial Directories http://ijrcm.org.in/ 51 FIG. 1: IMAGE PREPARED BY COMBINING LINE DDA ALGORITHM AND CENTROID FORMULA