Archives-January 2016

The effects of exposure from electromagnetic radiations of wireless cellular transmission towers on human health have attracted the attention of many researchers. Different works have revealed the harmful of electromagnetic radiation exposure to human health based on distance from the source and period of exposure. As one stays closer and at a pro-longed period from the transmission sites, the possibility of being affected by the radiation source becomes higher. This work was designed and conducted on the basis of selection of the three major telecommunication companies’ towers in Khartoum state, namely ZAIN, SUDANI and MTN. Generally, the measurements employed showed that bigger amount of radiations were detected right away closer to the tower and remain smaller when the distance from the tower is increased. The level of EMR is not that significant and still safe with reference to the recommendation of world health organization (WHO) and International telecommunication corporation (ITC). Therefore a non adverse obvious effect on the biological system is expected.

Abstract The research work was designed to find out the relationship between improvised and standard instructional material with academic performance in physics, in udu local government area of delta state. Some secondary schools in the area were used in the research. The data was collected via questionnaire in which students administered using chi-square method for the analysis; it was found out that the calculated value was more than the critical value which implied that there was significant effect of improvised and standard instructional material on the performance of secondary school students. This leads to the conclusion that government should endeavor to provide standard instructional materials for secondary school students so that there learning can be effective.

In this study energy use pattern for sugar beet production in Hamadan province of Iran was studied and the degrees of technical and scale efficiency of producers were analyzed using DEA technique. The results revealed that of the average pure technical, technical and scale efficiencies of farmers were 0.83, 0.63 and 0.74, respectively. The results also suggested that, on average, a potential 45.73% (19609 MJ ha-1) reduction in total energy input could be achieved provided that all farmers operated efficiently. Generally, it can be said the DEA approach was appropriate methods for energy optimization in sugar beet production.

It all about flow of Communication in the company. It is related to the Oral communication in the organization and the Effect.

The problem of accident is very acute in highway transportation, leading to loss of life and property. The various causes of road accidents are road users, vehicular defects, road condition, road design, environmental factors and other causes such as improper location of advertisement boards, improper location of level crossings not closed when required etc. Road accidents cannot be totally prevented, but by adopting suitable traffic engineering and management systems the accident rate can be reduced to a certain extent. Proper investigation of the cause of accident will help to propose preventive measures in terms of design and control. With this back ground in the present the detailed investigation on the quantification of accidents in Nandyal town, Andhra Pradesh has been carried out and suitable remedial measures has been suggested by conducting through filed investigations.

Re-use of treated wastewater for aquaculture and irrigation offers a possibility for water conservation and sustainable food production, however, the issue of human health is crucial. We assessed quality of water and catfish carp (Clarias gariepinus) in a fishpond receiving treated effluents from a municipal wastewater treatment plant in Kilimanjaro, Tanzania for physico-chemical water quality parameters, bacteria, nitrogen and heavy metals. Concentrations were compared to WHO standards to assess potential health risks. The water quality parameters conformed to WHO standards. Concentrations of measured toxic metals in water and fish exceeded WHO standards. These results indicate that the reared catfish are not suitable for human consumption.

Cavitating flows are highly complicated because it is a rapid phase change phenomenon, which often occurs in the high-speed or rotating fluid machineries. It is well known that the cavitating flows rise up the vibration, the noise and the erosion. Therefore, the research on the cavitating flows is of great interest. Numerical method is highly important approach for studying the cavitating flow. The propeller is the predominant propulsion device used in ships. The performance of propeller is conventionally represented in terms of non-dimensional coefficients, i.e., thrust coefficient (KT), torque coefficient (KQ) and efficiency and their variation with advance coefficients (J). It is difficult to determine the characteristics of a full-size propeller in open water by varying the speed of the advance and the revolution rate over a range and measuring the thrust and torque of the propeller. Therefore, recourse is made to experiments with models of the propeller and the ship in which the thrust and torque of the model propeller can be conveniently measured over a range of speed of advance and revolution rate. Experiments are very expensive and time consuming, so the present paper deals with a complete computational solution for the flow using STAR-CCM+ software. When the operating pressure was lowered below the vapor pressure of surrounding liquid it simulates cavitating condition. In the present work, STAR-CCM+ software is also used to solve advanced phenomena like cavitation of propeller. The simulation results of cavitation and open water characteristics of propeller are compared with experimental predictions, as obtained from literature [1].

This paper aims to highlight certain facts that help as well as constrain the production and marketing of coconuts in Karnataka. Based on the observation and analysis of the collected data, the paper concludes that both the production and marketing practices of coconut in Karnataka need to be made more professional if it has to continue to benefit the farmers and to assert its role in the Indian scenario.

It is been a long “Time” ,it is usually the most story’s of fairy tales started and also the second most important word is “ago” all these words which give as implication of past are related to Time, in our teachings, we learn History a lot, we learn about Mohan-ja-dare, but never seen its site, don’t we known that it is the most important part of Indus Valley civilization. In the coming years, we may not be able to see it’ ,learn about it & understand the first architecture of sanitation and hygiene gifted by our own dynastic people, therefore we must protect these site’s & try to teach more about them as these site are aspiration for young Indians to make economic cost technology for future. In the coming of ages the problem remained how to remember things and also how to preserve ,make available to our coming generations at last. Hence forth we require more wide ,simple approach to understand this. We propose a need for augmentation, we call it as augmented room .In this paper we have studied conceptual of Augmentation and observed that how Augmentation “a mixed real-virtual environment technology” will help us reach our goal. Our major aim is to prevent these monuments for our future generations so that next generation will learn and live with it. Making it possible through augmented room. This paper gives introduction to new kind of perseverance of heritage site and new transit to technology.

The use of tractors for agricultural works showed an important role to mechanized agricultural sector. A repairable mechanical system (as agricultural tractor) is subject to deterioration or repeated failure. In this study, the regression model was used to predict the failure rate of MF399 tractor. The machine failure pattern was carefully studied and key factors affecting the failure rate were identified in five regions of Khouzestan province. Results showed that different annual use hours (AUH) and maintenance policies affected failure rate. According to the data, the MF399 tractors included in 300-1000 AUH were commonly in a randomized breakdown period during their useful life but these tractors tend to enter the wear out period in the 1200-2000 AUH.