Development Of Electrochemical Biosensor Systems For Chlorpyrifos Pesticide Detection

Environmental monitoring systems are of great interest and highly significant in our life since every day we are exposed to many and various dangerous and fatal contaminants. Organophosphate pesticides such as Chlorpyrifos are widely used in agriculture to eliminate plant destroying pests. However, these pesticides may affect the environmental equilibrium unless continuous monitoring on their presence in water, soil, and agricultural products is carried out to protect human health and other living organisms. One of the approaches that can be adopted is to develop an on-line monitoring system. The widely used electronic and computer technology can simplify the development process of acquiring and monitoring system. In addition, the invention of biosensors to detect biologically-based materials such as Chlorpyrifos pesticide in the agricultural sector, glucose level in blood, heavy elements in the drinking water etc., have attracted interest

Development of Pc-Based Multi-Channel Measurement Unit

Nowadays the microcomputer has been involved in a variety of applications. These applications range from a simple ON/OFF operation to intelligent data acquisition, signal processing and control in individual automation applications. Moreover it can be utilised in monitoring different physical and electrical quantities. This study was mainly concerned with the design of 2-channel isolated current measurement board. The board can be plugged into one of the input/output (I/O) slots in the IBMlPC/ AT or compatibles. Signal from enzyme electrodes were used in the analysis to monitor the oxygen consumption or the production of hydrogen peroxide that represented the input current to the board. Each channel was selected using a software

ARCHITECTURE OF INDUSTRIAL AUTOMATION SYSTEMS

This article is aimed to name the levels of industrial automation, describes the hierarchical structure of industrial automation systems, (what information one accept from another, what information can be given from one to another), describes essential functions of each level, and mentions the differences between automatic control and supervisory control. Moreover, the article provides an exposure to the technologies that enable operation and control of modern industrial machines and systems

Development of a Computerized System for Fabric Structure Design based on Dobby Device Mechanism

     Generally,  a fabric design  can  be established as follows: firstly. The required fabric design is planned on the punched plastic card using the punching machine. Secondly, the punched plastic card  is used by the dobby device that  attached to the textile machine (rapier weaving loom) to make the final fabric design as required.      In this study, a direct interfacing system between a personal computer and the textile machine (rapier weaving loom) was established to replace the conventional system (plastic card and punching machine).           This  system  is  applied  in  the  University  of  Gezira to enhance performance (decrease the design time, requirements and the complexity) of the existing conventional dobby device. The  system  was   developed  using  Microsoft  Visual  Basic, Personal Computer, coil, and Parallel Printer Port. The system reads the machine statues via the input lines connected to the power adapter and a mechanical sensor. Then the system issues a suitable  action  on the machine by generating the electric signal applied  on  the  coil.     The magnetic field controls  the shaft movement and selects the required color according to the design parameters. The system also repeats the color selection process until the total length required is completed.By using this system; the  woven design operations  become quite  simple, easy  and flexible