Classification Of Mammographic Masses Using Fuzzy Inference System
Authors: K. Divyadarshini, R. Vanithamani
Abstract
Computer aided detection (CAD) intends to provide assistance to the mammography detection, reducing breast cancer misdiagnosis, thus allowing better diagnosis and more efficient treatments In this work the task of automatically classifying the mass tissue into Breast Imaging Reporting and Data System (BI-RADS) shape categories: round, oval, lobular, irregular and also as benign or malignant is investigated. Various geometrical shape and margin features based on maximum and minimum radius of mass are used in this work to classify the masses. These geometric features are found to be good in discriminating regular shapes from irregular shapes. For the purpose of classification, the masses are segmented from the mammogram using gray level thresholding. Prior to segmentation, the mammographic images are pre-processed using techniques like filtering and contrast enhancement. Finally, the classification is performed using fuzzy inference system that is constructed using MATLAB Fuzzy logic toolbox. The fuzzy rules are used to construct the generalized fuzzy membership function for classifying the shape and severity of masses. The images were collected from Mammographic Image Analysis Society (MIAS) Database and Digital Database for Screening Mammography (DDSM). The experiments were implemented in MATLAB.
CFD analysis of TiO2/water nano fluid flow in a double pipe heat exchanger
Authors: Salman.K, Prasidh E Prakash
Abstract
Thermal properties of fluids play a important role in cooling and heating applications in all industrial operations. Thermal conductivity of the fluids is an important physical and thermal property that decides its heat transfer performances. Traditional fluids used for heat transfer have inherently mediocre thermal conductivity which makes them short for higher cooling applications. Researchers are always trying to improve the inherently mediocre thermal conductivity of these Traditional fluids used for heat transfer by adding additives following the classical effective medium theory for effective properties of mixtures. elevated convection between the solid particle and liquid surfaces is the main cause for the improvement . the thermal and transport properties of the base fluid are changed by the suspende particles . Titanium dioxide (TiO2) is an excellent materials for heat transfer boosting purpose due to its perfect physical and chemical properties. Thermal analysis of drafted geometry(double pipe heat exchanger) is studied by varying concentration of nanoparticle (0-3vol%) in coolant using 3-Dimensional simulations .The aim of this project is to perform cfd analysis(ANSYS FLUENT 18.1) on nano fluid(TiO2/water) in a double pipe(tube in tube) heat exchanger and the result is analysed and compared with base fluid
Attribute-based Access To Scalable Media In Cloud Supported Content Sharing Networks
Authors: S. Uma Devi, G. Radha Devi
Abstract
This paper exhibits a novel Multimessage Ciphertext Policy Attribute-Based Encryption (MCP-ABE) strategy, and utilizes the MCP-ABE to plan a get to control plot for sharing versatile media in light of information purchasers' properties (e.g., age, nationality, or gender)rather than an unequivocal rundown of the customers' names. The plan is productive andflexible on the grounds that MCP-ABE enables a substance supplier to indicate a get to approach and scramble various messages inside one Ciphertext with the end goal that lone the clients whose traits fulfill the get to approach can unscramble the Ciphertext. Besides, the paper demonstrates to help asset restricted cell phones by offloading computational concentrated operations to cloud servers while without trading off information protection. Index Terms—Access control, cloud computing, data security and privacy, scalable media content.
A Study on Risk and Return Analysis on Pharmaceutical Company
Authors: S.Phani Kumar, K. Neeraja
Abstract
Risk and return analysis plays a key role in most individual decision making process. Every investor wants to avoid risk and maximize return. In general, risk and return go hand. If an investor wishes to earn higher returns than the investor must appreciate that this will only be achieved by accepting a commensurate increase in risk. based on risk and return analysis, high risk gives high returns with low risk gives to low returns, based on this concept in banking and automobiles sector high risk gives low return, and information technology ,fast moving consumer goods pharmaceutical sector low risk gives high return. Alpha stock is positive and the companies are independent to market return and have a profitable return.