The propose of this study was to investigate whether people practice sport at their leisure time or not and to find out the relationship between their leisure time and sport. Measuring was based on questionnaire prepared (r = 80/1) and the statistical pupulation included men and women aged between 20 to 65 years old. 0.08% of statistical pupulation (13480 persons) selected from states 27 provinees and 241 cities regarded as sample. The statistical procedure also was based on descriptive and inferential basis and included Chi square, analysis of variances, coefficient of correlation, and logistic regressions step by step. The results of this research showed that the average age of the participants were 34 years and 79.3% of them were married. Television was their first attempt in their leisure time and the second attempt was speaking with relatives and neighbors. Sport is the first intensive activity of the people at their leisure time and 60% of them peform physical activity. The research also showed that there was significant relationship between the leisure time and the satisfaction of doing sport.

This article presents the modeling of hydrothermal characteristics and suspended solids in a long and large-volume reservoir with a highly fluctuating water level. A laterally averaged two-dimensional hydrothermal and water quality model was configured for the Shihmen Reservoir in northern Taiwan. The model was validated with measured data of water surface elevation, water temperature, and concentration of suspended solids in 2006. The results show that the numerical model was able to reproduce the measured data. The validated model was then used to investigate the effects of water withdrawal schemes at different depths and to estimate the residence time in the reservoir. When water is withdrawn from a great depth, the relatively warm water from the upper layers can replace that in the deep layers, thereby facilitating heat transfer from the surface to the deeper layer. Bottom-water withdrawal results in a lower concentration of suspended solids compared with withdrawal from depths of 20 and 40 m. The simulated results show that the residence time is approximately 154 days in the Shihmen Reservoir.

In this study, a laboratory-scale biotrickling filter (BTF) is used to remove Triethylamine (TEA) from gaseous wastes. The BTF is made of stainless steel with a height of 210 cm and an internal diameter of 21 cm packed with lava rocks. TEA elimination pattern was evaluated by changing empty bed residence times (EBRTs). The maximum elimination capacity (EC) has been determined to be 87 g/m3/h. At all EBRTs 52, 31, 20, and 10 s, contaminant transferring from gas phase to liquid was more than the EC. Also, the removal efficiency was 100% for a mass loading of 100 g/m3/h. While the liquid recirculation velocity of 3.466 m3/m2/h was maintained, the flow rate was adjusted to 60, 100, 156, and 312 L/min. The results show that due to the high solubility of TEA in water for all the EBRTs, TEA can be solved in the circulated liquid and then be degraded gradually by microorganisms. Therefore, the least EBRT of 10 s is more appropriate.

The main inquiry in this study is whether a woman's place of residence can influence her time of marriage. Modernization, economic and gender equality theories have been employed to design an analytical model for this study and consequently to find a response to the research question. Iran Statistical Center carried out a project that collected socio-economic characteristics of Iranian households in 2001. The required data came from this source and all the women who married at least once were selected. The results of the t-test show that the average age of marriage of women differs significantly in rural (17.6) and urban (18.7) areas. There is a significant relationship between place of residence and other independent variables in the study. Highest correlation is reported between women's place of residence and their level of education, such that urban women have a higher level of education than rural women. On the other hand, there is no relationship between place of residence and women's age at marriage in a multiple regression model. This would lead us to conclude that place of residence has not a meaningful influence on the age of marriage but other variables like level of education can influence age of marriage through the place of residence.

In this study a sequential model of daily travel patterns is formulated that consists of home location, time-of-day, and activity history dependent models of activity and destination choice submodels of non-home based trips.The model development takes into account the interdependencies among the choices and the constraints imposed on the movement in time and space. The empirical analysis on a data set from the city of Mashhad shows that non-home-based destination choice is critically dependent on the individual's residence location and that activity choice is influenced only marginally by the accessibility of the origin location. As a practical and immediate modification of non-home-based destination choice models, this study proposes the inclusion of destination-to-home travel time as a factor that enables more realistic depiction of spatial travel patterns. The results indicate that the simplest expression of history of activity engagements is an adequate descriptor of activity choices. The study results demonstrate that time-of-day variable imposes a constrained environment upon the daily activity participation decisions.

While many studies have confirmed the effect of particle size distribution on the residence time in a reactor, the most employed models of continuous tank leaching process consider the residence time and particle size distributions as independent variables. In minerals processing field, no systematic study has been conducted on this issue yet. In this research, the relationship between the particles size and their residence time in a mixing tank has been studied. An empirical method for the determination of the residence time distribution function based on the inflow particles size distribution has been proposed. The relationship between the average size of one size fraction of particles and its residence time was obtained by mean residence time and parameter (an empirical coefficient). Results showed that increasing the particle sizes resulted in a 50% increase in the mean residence time while decreased from 0. 95 to 0. 3. Using the evaluated values of the residence time distribution function of the inflow stream was determined. Including this function in the segregated flow model, the effect of the variations of the value on the leaching performance was evaluated. Results showed that smaller values of resulted in higher conversion value.