the present study has been conducted to determine the surface water quality of urban area in savar, dhaka, bangladesh by determining some water quality parameters (transparency, temperature, ph, ec, eh, do, tss, tds, ts, bod5, cod, toc, cl-, br-, so4-2, no3-, no2-, po4-3, tp, hco3- and total alkalinity) as well as the status of phytoplankton’s community in the water from two lakes (tiger lake a...

the writers of this research have studied seven variables including: precipitation, relative humidity, sunny hours, temperature average, temperature minimum, temperature maximum and sea level pressure, at sanandaj air station during 1964-1994. sanandaj air station has nearly 10966 days of complete data for these variables. a principal component analysis (pca) has been applied on this data; then...

abstract natural disasters threatening and endangering human communities has resulted in the study and research of such disasters through the related sciences and present methods of forecasting their behavior with time and place and also from a qualification and quantity viewpoint. to this end, numerous methods for the determination of the maximum flood in various return period has been made av...

in this paper an application of the cluster analysis technique in educational planning is demonstrated by means of a developed computer software with some characteristics of an expert system. the main idea is based on the knowledge-based systems which have been applied in group technology. the software is applied to weekly schedules of the courses and professors of the industrial engineering de...

this paper aimed to identify and explain ethical components of agri-business based on perception cluster analysis of agri-business’ managers and owners. mixed method approach was employed. target population contains all the entrepreneurs, owners and mangers of agri-business in golestan province. in first phase, using qualitative semi-structured interview, the respondents’ perception about ethic...

extended abstractintroductionhousing is more than a mere physical shelter and be included all public facilities and services necessary to live better human being and be sure to provide a relatively long tenure. in persian housing means place of peace and quiet. residential space in underlying a safe and healthy family environment. today, despite the development of technology and communication, ...

the main objective of this study was to investigate how months cluster in any thermal regions based on temperature. for this purpose, the mean of daily temperature data have been provided using 620 synoptic and climatology stations. then, mean temperature was converted for any station, based on solar calendar, and maps of mean daily temperature have been interpolated using kriging method. spati...

clusters are geographically close groups of related companies or institutions related to a certain area which are inherently more efficient than the other companies due to advantages such as being located in one place, networks, external knowledge, variability of human capital, etc. today, development through clusters plays a pivotal role in the economic and industrial policies of developed cou...