wide variety of construction materials is available in Civil Engineering domain. The overall cost of construction materials as of required in construction may vary from an initial percentage of 60 to maximum of 80 in relation to total cost incurred on specific project. For an effective utilization of construction materials so as to relieve the economical footprints of construction industry an effective management is key. Due to tremendous construction going on in current era the construction waste also poses a serious threat to environmental footprint of particular area/region which needs to be tackled through certain control measures and effective management of squander produced during construction. Besides utilization of construction materials in reckless way Construction industries contribute a major percentage in environmental degradation by producing waste which has to be dumped which is not accounted by most of the industrialists. The stated paper puts forward a general review about the stated topic through organized investigation of various aspects related with the stated subject.

Six Sigma is a journey for those who are truly committed to improving the quality and meeting customer needs as well as driving human development to new levels. It is the responsibility of every human resource professional in implementing and sustaining this strategy which will improve the culture in their organization. Six Sigma creates a culture for motivating people to work together to achieve higher levels of efficiency in all aspects. Six Sigma is a vast concept which will be not acquired in a day or in a certain period of time. The human element is finally taking advantage of technological developments by implementing the revolutionary Six Sigma management approach to deliver higher levels of unbelievable quality at lower costs that required competing in a challenging and tough global economy. Thus it can be said that Six Sigma is a road map for success of human resource as well as for the entire organizations. This article focused on a study of steel industry is related to attitudes of employees towards Six Sigma the quality improvement tools in practice in Rourkela Steel Plant (RSP),SAIL as the frame of reference.

In recent years, the scientific researches on ocean environment have remarkably increased and the utilization of research vessels by scientists has been accordingly scaled up. Thus, the number of navigation performed by research vessels has ascended significantly and at this point, safety concept came into question. The fact that the scientists and vessel crew safely go ashore is much more important than everything. In this study, a research vessel was considered and the hazard sources were attempted to determine by utilizing Fuzzy Analytic Hierarchy Process (FAHP). The research vessel has been divided into five parts such as engine room, rudder room, bridge, accommodation, and deck. Hazard sources and their weights were determined for each section. The purpose of this study is that the scientists and crew working at research vessels notice the hazard sources and make provision against these hazards in order to prevent possible accident in research vessel.

Kenya is endowed with ample solar energy resources, with annual averages over 5 kWh/m2/day available throughout the country. Solar domestic water heating technology has become a common application in many countries and is widely used for heating in single or small multi-family homes. During peak periods that is in the mornings and evenings most of electricity is consumed leading to overload. Much of this electricity is used in water heating and cooking. In order to reduce on this consumption then solar water heating has to be used to cater for electricity that could otherwise be used in water heating.
This study evaluates the performance of solar water heating in Nairobi County Kenya which is located between longitudes at 36039‟ and 37006‟East and latitudes 1009‟ and 1027‟South. Its altitude is 1795m above the sea level and adjacent to the eastern edge of the Rift Valley. Nairobi has a population 3,375,000 and its population has been increasing steadily from 3,138,295 inhabitants in 2009 to 3.36million in 2011.
The water inlet temperature was measured using Infrared thermometer between 9.00 and 16.00 hours with variation of one hour between the duration, monitoring of the water outlet temperatures in a temperature display unit maintaining the one-hour duration between the stated times. Solar insolation was measured using the Hukseflux thermal sensors application software installed on iPhone and average data recorded daily. Finally, T*Sol software was used to analyze the annual performance of flat plate and evacuated tube solar collectors. The highest solar insolation attained was 6.5kWh/m2/day and the lowest was 3.76kWh/m2/day in May and in June the highest was 6.1kWh/m2/day and lowest was 3.78kWh/m2/day. During this study T*SOL software was used to simulation and analysis of annual thermal performance of both FPC and ETC and it gives an overview of operation of these collectors throughout the year. From this study it was noted that performance of solar water heaters is impressive and are giving temperatures as high as upto 900C on a clear sunny day. On a cloudy day the SWH still produce water at temperatures higher than 350C.
This study also reveals that collector area is of importance in attaining higher water temperatures and the larger the area the higher the temperature and vice versa, Vacuum tubes performance is better compared to flat plates since vacuum tubes have the capability to produce warmer water even during cloudy climates as compared to flat plates but flat plates have good energy picking when there is sunlight.