Feature Extraction on Medical Image using 2D Gabor Filter

Mammography is a specific type of imaging that produces an X-ray picture of the human breast. Detection of tumors at an early stage is important step in diagnosis of the abnormalities in mammograms. In many of the cases, preprocessing process of the raw image involving of enhancement, filtering and determination of textural features have been necessary for successful implementation of this study. Raw image is applied histogram equalization method in order to enhance the image intensity. Thus, the noise of that image is eliminated using Gaussian filtering method. Gabor wavelet based algorithm such Gabor filter is used to extract the feature of that images

Application development with J2ME for mobile phone

With mobile commerce technology continuously being taken more into use and introduced in new markets, the transition to mobile commerce (m-commerce) will make mobile shopping exceedingly popular. In the near future mobile shopping will probably replace today's markets or shopping complex. This project presents a mobile application which is built using Mobile Information Device Profile (MIDP) of the Java 2 Platform Micro Edition (J2ME), that enable users to purchase flowers without a trip to the market or elsewhere. Users can access the application or service through mobile phones and view the available items. The application has been deployed and run on an emulator (Wireless Toolkit 2.5 Beta) with a DefaultColorPhone as the default emulator

Development of arm-based application system

The aim of this paper is to expose the development process and software involved in realizing an ARM-based application system. The application system consists of a cruise algorithm inten dcd to be used in an autonomous robot prototype, which is developed with the help of Flowcode software that utilizes flowcharts as its design entry. The flowchart is then configured to be tested for real-world application over £-blocks board integrated with an ARM-based microcontroller chip from Atmel, AT91SAM7S128. It is hoped that the development process shared in this paper may be benefitted for researchers who wishes to start developing an ARM-based system for further study or other purpose in one way or another

Optimization of copper(I) thiocyanate as hole transport material for solar cell by scaps-1D numerical analysis

In SSDSSC, various key parameters of CuSCN as HTM were explored using SCAPS-1D simulation software. A layer thickness of 3 µm with a moderate value of interface defect density was obtained yielding 2.56% of PCE in SSDSSC. TiO2 ETM and Ni back contact was found to be the best combination with CuSCN HTM in SSDSSC. An excellent temperature gradient in a range between -0.04%/K and -0.05%/K was demonstrated, showing that the temperature tolerances of the studied devices are encouraging. In addition, PCE as high as 31.31% has been achieved by substituting the N719 dye with a perovskite absorbent of CH3NH3SnI3, and hence exceeding the previously reported PCE value in PSC. Other parameters that have been optimized are retained. Furthermore, the quantum efficiency of such structure has proved that cells with CH3NH3SnI3 absorbent layer can absorb a wider range of the light spectrum, enhancing the power conversion efficiency

The Design, Fabrication, and Testing of an Electromagnetic Micropump with a Matrix-Patterned Magnetic Polymer Composite Actuator Membrane

A valveless electromagnetic (EM) micropump with a matrix-patterned magnetic polymer composite actuator membrane structure was successfully designed and fabricated. The composite membrane structure is made of polydemethylsiloxane (PDMS) that is mixed with magnetic particles and patterned in matrix blocks. The matrix magnetic composite membrane was fabricated using a soft lithography process and expected to have a compact structure having sufficient magnetic force for membrane deformation and maintained membrane flexibility. The magnetic membrane was integrated with the microfluidic system and functionally tested. The experimental results show that a magnetic composite actuator membrane containing of 6% NdFeB is capable of producing a maximum membrane deflection up to 12.87 µm. The functionality test of the EM actuator for fluid pumping resulted in an extremely low sample injection flow rate of approximately 6.523 nL/min. It was also concluded that there is a correlation between the matrix structure of the actuator membrane and the fluid pumping flow rate. The injection flow rate of the EM micropump can be controlled by adjusting the input power supplied to the EM coil, and this is believed to improve the injection accuracy of the drug dosage and have potential in improving the proficiency of the existing drug delivery system

Implementing the Controller Area Network (CAN) Protocol for Multiplex System

Controller Area Network (CAN) protocol can be implemented in networking a system by the application of PIC18F458 microcontroller and MCP2551 transceiver. For successful transmission, design specification concerning the CAN node identifier assignment, message reception pattern and time synchronizatio must be determined accordingly. The CAN network developed in this article performs a simple application of transmitting a one-byte data through a three-node network. This eye-opener CAN system realization may act as a platform for researchers who are interested in the application of CAN protocol in networking a multiplex system. The work can also be used for analyzing purposes concerning the CAN usage in domestic embedded system application networking

NMOS Performance of Low Boron Activation on Group V for Ultra-Shallow Junction Formation

Fabrication of ultra shallow junctions with low contact resistances is desired to advance current CMOS technology. The low Boron activation on Group V for ultra shallow junction formation will makes the chip fabrication works effectively. Silvaco TCAD (Technology Computer Aided Design)manages simulation tasks and analyzing simulation results when ultra-shallow junction formation is using low-boron activation on Phosphorus, Antimony and Arsenic. A stimulate process like implantation, diffusion and dopant activation and epitaxial growth in different semiconductor materials has been analyzed as well as investigate the effects of energy of boron ion beams on ultra shallow junction formation. As a result, the electrical characteristics of NMOS structure by obtaining graph of ID – VGS and ID – VDS has been studied when there are variations in junction length (Xj), and gatelength (Lg)

The Design, Fabrication, and Testing of an Electromagnetic Micropump with a Matrix-Patterned Magnetic Polymer Composite Actuator Membrane

A valveless electromagnetic (EM) micropump with a matrix-patterned magnetic polymer composite actuator membrane structure was successfully designed and fabricated. The composite membrane structure is made of polydemethylsiloxane (PDMS) that is mixed with magnetic particles and patterned in matrix blocks. The matrix magnetic composite membrane was fabricated using a soft lithography process and expected to have a compact structure having sufficient magnetic force for membrane deformation and maintained membrane flexibility. The magnetic membrane was integrated with the microfluidic system and functionally tested. The experimental results show that a magnetic composite actuator membrane containing of 6% NdFeB is capable of producing a maximum membrane deflection up to 12.87 µm. The functionality test of the EM actuator for fluid pumping resulted in an extremely low sample injection flow rate of approximately 6.523 nL/min. It was also concluded that there is a correlation between the matrix structure of the actuator membrane and the fluid pumping flow rate. The injection flow rate of the EM micropump can be controlled by adjusting the input power supplied to the EM coil, and this is believed to improve the injection accuracy of the drug dosage and have potential in improving the proficiency of the existing drug delivery system

Development of an ARM-based Application System

The aim of this paper is to expose the development process and software involved in realizing an ARM-based application system. The application system consists of a cruise algorithm intended to be used in an autonomous robot prototype, which is developed with the help of Flowcode software that utilizes flowcharts as its design entry. The flowchart is then configured to be tested for real-world application over E-blocks board integrated with an ARM-based microcontroller chip from Atmel, AT91SAM7S128. It is hoped that the development process shared in this paper may be benefitted for researchers who wishes to start developing an ARM-based system for further study or other purpose in one way or another