March 2009
Behaviour of embedded generation during the voltage sags in distribution networks
In recent years, using of small generators connected to distribution networks has been increasingly preferred to supply local loads. They are called embedded or distributed generators because of they are connected to distribution networks. Both of them are generally used synonymously and interchangeable. In this study, dynamic performances of embedded genera-tors are observed during and after the faults. The...
March 2009
Plants used for female reproductive health care in Oredo Local Government Area, Nigeria
The state of maternal health in Nigeria is poor and can be attributed to inadequate access to reproductive health services, poverty and in some areas cultural resistance. Consequently, many rural people in Nigeria turn to ethno-medicinal health care systems due to accessibility, affordability, availability and an inherent trust in this method. These systems are threatened by erosion of plant diversity and...
March 2009
Deformations and stresses in rotating FGM pressurized thick hollow cylinder under thermal load
Using the infinitesimal theory of elasticity, closed form solutions for one-dimensional steady-state thermal stresses in a rotating functionally graded (FGM) pressurized thick-walled hollow circular cylinder are obtained under generalized plane strain and plane stress assumptions, respectively. The material properties are assumed to vary nonlinearly in the radial direction and the Poisson’s ratio is...
March 2009
Genetic expression programming for prediction of heat of hydration of the blended cements
This study presents a new approach based on Genetic Expression Programming (GEP) for modeling of variation of heat of hydration of Portland and blended cements. For that purpose, two different GEP models were developed to generate two mathematical equations. In the GEP Model 1, six input parameters such as the ground blast furnace slag replacement ratio (GBFS), ground basaltic pumice replacement ratio...
March 2009
Determining the recreational demands and tendencies of students at Atatürk University through questionnaires
If recreational planning is to be made considering the demands and tendencies of users, limited resources will be utilized more profitably and the needs of the users will be met more effectively. From this point of view, the purpose of this study was to determine the recreational tendencies of students at Atatürk University and investigate whether the campus was satisfactory enough to meet the needs. At...
March 2009
The effect of AntNet parameters on its performance
AntNet is a routing algorithm which takes advantage of the way ants help each other to find food sources faster. Ants’ communication in this respect is indirect by leaving pheromone trails as they move. The richness and thickness of the trail is proportional to the number of ants that have passed. This method of indirect courtesy guidance by affecting the environment is called stigmergy. Many network...
March 2009
Generalized optimal controller design for all pole systems using standard forms
In this work, a generalized controller design method for the systems with all pole transfer function has been given. The method basically uses the standard forms, which have been introduced firstly in 50’s and improved recent years. In the proposed method, a PI controller, which is in the feed forward and a polynomial controller, which is in the feedback path, are used. Degree of the polynomial...
March 2009
Prevalence of seed-borne fungi in sorghum of different locations of Bangladesh
Fungi associated with sorghum (Sorghum vulgare) seeds collected from eight different locations viz. Jamalpur, Kushtia, Mymensingh, Pabna, Rajbari, Rajshahi, Savar and Sherpur of Bangladesh were detected by Blotter method. About 36% of the sorghum seeds were infected by different species of fungi obtained from the selected locations and nine different fungi identified in order of prevalence, were-Curvularia...
March 2009
Comparative in vitro assessment of the antiplasmodial activity of quinine – zinc complex and quinine sulphate
Incessant malaria endemicity in the tropics and subtropical regions and the recent work done on the synthesis of metal drug complexes of antimalarial drugs and the evaluation of their antimalarial activities in vitro, has led to the development of this study. Quinine-Zinc complex (QZ) was synthesized using a modification of Singla and Wadhwa method. Melting point determination, TLC analysis, infra red,...
March 2009
Studies on the pH and protein content of tomato (Lycopersicon esculentum Mill) fruits deteriorated by Aspergillus niger
Tomato (Lycopersicon esculentum Mill) fruits obtained from the local market in Sango Ota, Ogun State, Nigeria were inoculated with Aspergillus niger from cultures grown in the laboratory and incubated under appropriate conditions of temperature and moisture to initiate infection for seven days. Extensive lesions and subsequent collapse of the tomato fruits inoculated with A....
March 2009
Evaluation of the bacteriological characteristics of poultry litter as feedstuff for cattle
The bacteriological characteristics of poultry litter as feedstuff for cattle was evaluated by subjecting it to heat treatment by deep stacking. Litter samples were assayed for pathogens before heat treatment commenced. The litter was bagged, stacked and covered with thick, black plastic cellophane in a roofed building for 21 days. The temperature of the stack was monitored with a thermometer and the...
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