Design And Implementation of Android Based Voip System for Noise Pollution Control

Noise pollution happens to be a menace that the world is currently fighting hence, a way of controlling such pollution is needed so that in the event of passing information to a particular individual or group such information will land on the table of the recipient without constituting a menace to those around. The application of Information and Communication Technology ICT is therefore envisaged in solving this problem especially in environment where ICT is the order of the day. This paper, therefore, proposes a technological approach to solving this problem; the design and implementation of a Voice over Inter-Protocol VoIP as a means of sending voice messages from one android application to another, over a wireless network to individual, groups etc. The android platform was chosen because of its merit in portability and been able to connect to the internet easily. The VoIP has been designed, implemented and tested within the halls of residence of Covenant University, Nigeria and the result was satisfactory hence, acceptability of this work will show a great reduction in noise pollution in tertiary institutions, places of worships, and every other open spaces, events where messages need to be sent but to the specific recipient

Automation and Easy Accessibility of Medical Services in Nigeria (ICT and Medicine)

The Internet and Information Communication Technology (ICT) infrastructures are transforming the future of healthcare management. The cost of healthcare delivery systems, products, and services continue to rise unabated, especially in Nigeria – a developing nation that needs technology transfer. Knowledge is one of the crucial resource and precondition to strengthen health systems. Access to knowledge has large impact on health system management and up to date patient care. The great challenges lie in the optimal utilization of rapid spreading information and communication systems (ICTs) and innovative applications such as telemedicine and e-health. Telemedicine is the practice of diagnosis, consultation and treatment between physicians and distant patients through the use of telephone and computers that transmit data for remote television viewing and treatment from a distance. The concept of telemedicine is a dream to come through in Nigeria, but if developed and taken right to the community hospitals, it can prove to be very beneficial, especially in giving timely treatment to wounded soldiers or plague patients, as a majority of the specialists prefer being stationed at big urban centers, with the rural populace being the real sufferer. Modern health information systems are a requisite for efficient and equitable resource allocation. Moreover, the Internet has pushed networking technology into the mainstream and it is without doubt the most important network, both in terms of technology advances and social impact, in the world. However, telemedicine provides a cost effective means of technological transfer both machine and expatriate advice through ICT connectivity.

Medium-Term Load Forecasting Of Covenant University Using The Regression Analysis Methods

Electric load forecasting is principal to the economic and efficient provision of electric power to meet various load demands for a specified period of time. The focus of this paper is on the medium-term load forecast of Covenant University, a Nigerian tertiary educational institution, using the methods of regression analysis. The hourly load information collected from the University’s electric power substation is employed as the sample data for the forecast. Three models based on the linear, compound-growth, and cubic methods of regression analysis are developed, and the load forecast results obtained from these models are compared using the mean absolute percentage error (MAPE) and root mean square error (RMSE) performance metrics. It is observed that, among these three models, the linear model has the best error margin: 0.5792 and 41.34 for MAPE and RMSE, respectively

Design and Development of a Microcontroller Based Automatic Switch for Home Appliances

Home Automation is the interconnection of electrical devices in a household together to perform a function without human intervention. Home Automation can be many different things. It may be remote lighting control, it may be setting your lights and temperature on a schedule to conserve energy and make sure you come home to a warm, well-lit house every night, and so on. In this work, we design and implement a device that would detect the presence or movement of persons in a room and switch on the light (240V) if this condition is true and off if false, and also turn on or off the fan in the room based on a certain temperature of the room and if a presence or movement is detected

Radiation Protection Strategies in Medical Diagnostic Centers in Lagos State, Nigeria

In recent years, Medical imaging has recorded a canonized level of advancement in the medical chronicles of achievement feats. This has made the diagnosis of ailments easy in reducing the death rate of patients. Imaging machines have different functions and some of them use radiation that is dangerous to the human body. Although radiation is important and it is needed for the patients in need of treatment but not needed by the machine operators, staff and visitors of the building where the imaging machines are been housed. The aim is to investigate different design and construction strategies employed to reduce transfer of radiation in various diagnostic imaging centres in Lagos State Nigeria; in order to reduce health risk associated during radiation emission in medical facilities. Qualitative method of research was adopted and data were collected via review of pertinent literature and field work of three diagnostic centres in the study area. The data were analysed using content analysis and presented with sketch and pictures. The finding reveals that lead lining was the most common material used to shield the different diagnostic rooms in the study area. This shielding was not only done for walls but also embedded in the doors. In addition, Lead glass was also used to protect the machine operators from radiation. Finally, this study recommended that other less harmful materials need to be explored for radiation shielding other than the use of Lead. For competency in Educational, professional, curricular practices and even hygienic exigencies; further research may advance investigations to find out other protective materials and strategies that are relevant to medical exploits as well as Architects design specification knowledge for the design of medical facilitie

Developed Model to Control Congestion on Converge Network

Congestion control techniques like Active Queue Management (AQM), Carrier Sense Multiple Access/Carrier Detection (CSMA/CD) have not proven to be very efficient in the presence of overwhelming complex converge network. Thus, vast packets in a complex converged network leads to collisions, network degradation and high degree of packet loss. Bandwidth utilization factor has a high effect on the network such that controlling the level of utilization via the management of the number of users and the amount of packets on the network rendered the latency very insignificant. As a consequence of this, high throughput and very minimal packet loss was achieved in the experiment. This was confirmed analytically by varying the utilization factor between 40% and 90% while keeping other parameters in the experiment constan

Determining the operational status of a three phase induction motor using a predictive data mining model

The operational performance of a three-phase induction motor is impaired by unbalanced voltage supply due to the generation of negative sequence currents, and negative sequence torque which increase motor losses and also trigger torque pulsations. In this study, data mining approach was applied in developing a predictive model using the historical, simulated operational data of a motor for classifying sample motor data under the appropriate type of voltage supply i.e. balanced (BV) and unbalance voltage supply (UB = 1% to 5%). A dataset containing the values of a three-phase induction motor’s performance parameter values was analysed using KNIME (Konstanz Information Miner) analytics platform. Three predictive models; the Naïve Bayes, Decision Tree and the Probabilistic Neural Network (PNN) Predictors were deployed for comparative analysis. The dataset was divided into two; 70% for model training and learning, and 30% for performance evaluation. The three predictors had accuracies of 98.649%, 100% and 98.649% respectively, and this confirms the suitability of data mining methods for predictive evaluation of a three-phase induction motor’s performance using machine learnin

Design, simulation and implementation of a PID vector control for EHVPMSM for an automobile with hybrid technology

This work proposes a Model design simulation and implementation of a novel engine of an Electric Hybrid Vehicle of Permanent Magnet Synchronous Motor (EHVPMSM) based on field oriented vector control. The experimental analysis was carried out using: automotive motor control MTRCKTSPS5604P, 3-Phase PMSM coded of a single Motor Control Kit with MPC5604P MCU and simulation with Simulink. Therefore, the direct torque control can be obtained by adjusting the magnitude and phase angle of the stator flux linkage to match the vector torque required by the load as fast as possible. This eradicates the stress of charging the vehicle battery. It automatically charges when it is connected to the main supply of the EHVPMSM. The electromagnetic torque can be increased from 0 Nm to 6.7 Nm in approximately 340 μs. The response of speed transient was from −2100 rpm to +2100 rpm in 100 ms of 6.7 Nm torque limit. This is a novel way of conserving the energy consumption in a vehicle, which conserves space and weight and minimizes cost as it is simply done with low-cost materials. In this research, a new mathematical model is proposed for the direct and quadrature axis of the current to control the speed mechanism for the engine. Computer simulation ensures experimental validation of the system with a percentage error of 4.5%. The methodology employed to control the system was with the use of various sensors and software controller, this can be easily implemented in industry and institutional laboratory of learning. Keywords: Permanent magnet machines, PID, EHVPMSM, Vector control, Hybrid vehicl

INFLUENCE OF AWARENESS OF DIETARY CHOLESTEROL ON CONSUMPTION OF CHICKEN EGGS IN ZARIA

Structured questionnaires were administered on 228 respondents within Zaria and its environs to evaluate the acceptability of chicken egg as food despite its cholesterol content. The study was conducted between May and June, 2009. The questionnaires were retrieved; collated and data analyzed using Statistical Package for Social Sciences (SPSS). The data were analyzed for frequencies and correlated relationships between the measured attributes. The results indicate equal distribution between male (49.6%) and female (50.4%) respondents. The highest percentage of the respondents was between the active age group of 20 to 50 years of age. Most of the individuals interviewed were either single (59.2%) or married (33.3%). About 70% of the respondents had tertiary education while the rest had secondary (27.2%) and primary (3.1) education. The respondents were mainly students, civil servants, academics and private business people and their corresponding respective frequencies were 98, 60, 19 and 51, respectively. Almost all (93.4%) the respondents liked chicken egg as food. 63.2% of the respondents ate an egg per meal while 7% of them did not eat egg at all. Age and profession of respondents significantly (P<0.05) affected respondents’ likeness for chicken egg. This study therefore, shows that the higher the level of education the more the fear of the cholesterol in chicken eggs

RADIATION PROTECTION STRATEGIES IN MEDICAL DIAGNOSTIC CENTERS IN LAGOS STATE, NIGERIA.

In recent years, Medical imaging has recorded a canonized level of advancement in the medical chronicles of achievement feats. This has made the diagnosis of ailments easy in reducing the death rate of patients. Imaging machines have different functions and some of them use radiation that is dangerous to the human body. Although radiation is important and it is needed for the patients in need of treatment but not needed by the machine operators, staff and visitors of the building where the imaging machines are been housed. The aim is to investigate different design and construction strategies employed to reduce transfer of radiation in various diagnostic imaging centres in Lagos State Nigeria; in order to reduce health risk associated during radiation emission in medical facilities. Qualitative method of research was adopted and data were collected via review of pertinent literature and field work of three diagnostic centres in the study area. The data were analysed using content analysis and presented with sketch and pictures. The finding reveals that lead lining was the most common material used to shield the different diagnostic rooms in the study area. This shielding was not only done for walls but also embedded in the doors. In addition, Lead glass was also used to protect the machine operators from radiation. Finally, this study recommended that other less harmful materials need to be explored for radiation shielding other than the use of Lead. For competency in Educational, professional, curricular practices and even hygienic exigencies; further research may advance investigations to find out other protective materials and strategies that are relevant to medical exploits as well as Architects design specification knowledge for the design of medical facilities