Research Papers/Topics in Electrical Electronics Engineering

Strategies For Optimizing Password Management Against Versatile Attacks

ABSTRACTManaging passwords is a significant problem for most people in the modern world. Passwords are a critical part of information and network security. Passwords serve as primary authentication method to protect user accounts but a poorly chosen password, if compromised, could put the entire network at risk. Many users do not understand why good passwords and password management are important for information systems. “We’re secure! We use passwords!” H...

Design And Construction Of A Door Lock Alert System Using A Microcontroller

ABSTRACTThis project focused on how one can safely keep the house safely locked throughminimizing the access to its door unit, monitoring whoever is trying to open thedoor and providing an alert to the security agencies in case he/she is proved anintruder by the system. The work is arranged mainly in five chapters, Chapter oneincludes the introduction of a system. Chapter two discusses the literature relatedto the system, Chapter three illustrates the methodologies used in coming up wit...

Design And Fabrication Of An Electronic System For Pressure And Temperature Measurement In Thin Film Deposition Systems

Temperature and pressure are quantities of great importance in various applications such as integrated circuit (IC) manufacture and vacuum coating just to mention a few. Therefore, their accurate measurement is inevitable. However, it is tiresome to measure and record these quantities manually by pen and paper when operating a thin film deposition system. This approach is not only time consuming but also causes human errors on the measured physical parameters. To solve this problem, an ...

Compressionion Of Pulse Code Modulation Signal Using Type Iv Discrete Cosine Transform Based On The Mp3 Model.

Digital signal compression in the recent past has become the mainstay of the basic technologies of multimedia due to the bandwidth and storage limitations inherent in networks and computers. The change from circuit switched to packet switched systems in the telecommunication infrastructure in the past few years, has reflected on the way Pulse Code Modulation (PCM) signal which in essence is a raw audio signal, is carried in present systems. The purpose of this study was to design an app...

Designing And Fabrication Of A Current-Voltage Curve Meter For Electrical Characterization Of Photovoltaic Modules

In the recent past the use of renewable energy as an alternative source of energy has increased considerably. The solar cells modules manufacturing technology is becoming more reliable and economical. The feasibility of photovoltaic solar energy as an alternative source of energy has   become real. The low efficiency and the weather condition dependency give room for improvement of this technology to extract maximum power for different environmental conditions. Therefore, the ...

Study Of Snxsey Thin Films For Phase Change Memory (Pcm) Applications

Phase Change Random Access Memory (PCM) is one of the most optimized candidates for the next generation non-volatile memory due to its fast operation speed, high scalability, low power operation and fabrication costs. The transition from the amorphous to the crystalline phase is induced by heating the material above its crystallization temperature for a long enough time, and the switching back to the amorphous phase is realized by melting and quenching the material fast enough that it s...

Optical And Electrical Characterization Of Cdxse1-Xs And Cu2sthin Films For Solar Cell Application

ABSTRACT There has been a steady increase in demand for clean and renewable energy globally. As a result, more effort has been put into research to harness solar energy from the sun to generate electricity using solar cells. Solar cells convert solar energy directly into electricity. Recent research findings indicate that properties of thin film solar cells strongly depend on the various deposition techniques chemical bath deposition (CBD) being one of them. This technique yields stable...

Design Of An Intelligent Room Light Controller With Bidirectional Counters For Energy Efficiency Applications

ABSTRACT Despite the installation of light energy waste control systems in modern buildings, many people end up paying for high energy bills. The cost of installation of these systems is usually high, and most of them are inefficient making it a major concern to the normal user. Due to technological advancement, sensors and microcontrollers are employed in a wide range of applications. This includes domestic and industrial fields where they aid in control of automated processes. In thes...

Design And Fabrication Of Aperture Coupled Microstrip Patch Antennas With Arbitrarily Shaped Apertures

ABSTRACTA linearly-polarized aperture coupled microstrip antenna design is characterized and optimized using FEKO antenna simulation software. One of the major drawbacks of these microstrip antennas is their narrow bandwidth. Aperture coupled being one of the feeding technique has proven to be a solution to this problem. In this research a patch antenna that is coupled to a microstrip-line by an aperture in the intervening ground plane has been designed and fabricated and implemented. The sha...

Characterization Of Cdxse1-Xs/Pbs Thin Films Deposited By Chemical Bath Deposition For P-N Junction Solar Cell Application

ABSTRACTThe CdS and PbS are of great research interest due to their outstanding electronics andoptical properties such as winder energy band gap phase and good antireflective propertiesrespectively. CdS has been earlier doped by Zn and used as a window layer combined withPbS as the absorber material using the CBD method. It realised an efficiency of 0.9. It isfor this reason in my research, I doped CdS with Se in the fabrication of CdxSe1-xS/PbS PNjunction for solar cell application to ...

Optical And Electrical Analysis Of Cd1-Xfexs/Cus P-N Junction For Solar Cell Application

ABSTRACTThe rapid population growth in Kenya and the world in general has led to very high energy demands; this has necessitated urgent exploration of other alternative energy sources. Solar energy is one such alternative that has not been fully utilised hence many researchers have developed much interest in them. Solar cells absorb light from the sun and convert it in to useful electrical energy however the challenge has been how to harness it as well as the very low efficiencies recorded by...

System Sizing Of Solar Energy Requirement For An “All-Direct Current” Stand-Alone Telecommunication System

ABSTRACTSolar photovoltaic (PV) energy has been widely used for decades especially where connection to a national grid is seldom possible and other sources such as fossil fuel and others are either unavailable or uneconomical. Solar PV energy owing to its free, natural availability and environmental friendliness has found demand for use in industries, homes and institutions. However, very little research has been carried out to precisely establish its effectiveness, reliability and adequacy. ...

Design And Analysis Of Microstrip Antenna For 2.4 Ghz Applications

ABSTRACTCommunication systems require development of low cost, low profile and minimal weight. Microstrip antennas (MSA) are capable of maintaining high performance over a wide spectrum. Technological trends have focused much effort on the design of the microstrip patch antennas. In this study, square, circular and rectangular patches were designed and analyzed using two different substrates. High Frequency Structure Simulator (HFSS) software was used to simulate, model and analyze the MSAs. ...

Analysis Of Microstrip Antenna Using Arbitrarily Shaped Patches Having Similar Surface Area

ABSTRACTMicrostrip patch antenna(MSA) has become very vital in communication system due to its attractive features such as its light weight, small size, low cost, low profile, ease of installation and its conformability to planar and non planar surfaces, when a particular mode and shape is selected. MSA are versatile in terms of resonant frequency, impedance, polarization and electromagnetic wave pattern. However, MSA have been found to suffer from relatively narrow bandwidths. The consumers ...

Design And Fabrication Of An Electronic System For Monitoring And Controlling Temperature, Light Illuminance And Humidity In A Greenhouse

ABSTRACTClimate uncertainties pose a challenge to the production of food to feed the growing billions on the globe. Climatic conditions can change abruptly ruining farming efforts and leading to food shortages. Greenhouses attempt to solve this problem by enclosing crops in a climatically controlled environment. Crop production in greenhouse environment has the advantage of obtaining reliable and continuous output throughout the year. Each greenhouse has distinct characteristics. Data on thes...


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