abstract in this research the thermal stratification of the water in the torogh dam basin and the resulted changes in its quality with respect to temperature, salinity and dissolved oxygen was investigated using the dynamic reservoir simulation model. the results indicated that in wet years such as 1998, when the average annual precipitation and the resulted inflows to the basin is higher than ...

BACKGROUND Ulaanbaatar, Mongolia, is known as severely air-polluted city in the world due to increased coal consumption in the cold season. The health effects of air pollution in Mongolia such as mortality, morbidity and symptoms have been previously reported. However, the concept of health-related quality of life (HR-QoL), which refers to the individual's perception of well-being, should also ...

Upwelling has profound effects on nearshore tropical ecosystems, but our ability to study these patterns and processes depends quantifying upwelling dynamics in a repeatable rigorous manner. Previous methods often lack the identify individual cold-pulse events within temperature time series data or require several user-defined parameters, therefore previous hydrographic knowledge of site. When ...

This study evaluated the effect of storage and sowing conditions on seed germination of Styrax japonicus Sieb. et. Zucc, an ornamental tree with seeds that exhibit double dormancy. The germination of freshly harvested seeds was compared with seeds that had been stored dry at 20 C for a year before sowing. After sowing, potted seeds were placed in an air-refrigerated greenhouse maintained 18.5/1...

Horticulture survey is a multi-purpose survey which is conducted ad hoc by Statistical Center of Iran (SCI). Availability of survey variables in the sampling frame suggests a multivariate stratification in each province based on its desired variables for acquiring a higher efficiency. There are several ways to stratify the sampling frame considering all stratification variables, such as using s...

In order to solve the problem of input fresh air overheating (cooling) in cold supply (heating) season severe regions, a soil source (BHE) combined with preheating conditioning system was studied net-zero energy building Shenyang. Firstly, hybrid TRNSYS-CFD simulation model based on TRNSYS and Fluent software established simulate operation indoor temperature distribution during typical day summ...

Abstract. The Northeast Greenland shelf is highly sensitive to climate and ocean variability because it swept by the East Current, which, through western Fram Strait, forms main pathway of export sea ice cold water masses from Arctic Ocean into North Atlantic Ocean. In order reconstruct Current general palaeoceanographic conditions in area during Holocene, we carried out benthic foraminiferal a...

Returned signal strength intensity measurements from an acoustic Doppler current profiler deployed at open-water site in Lake Superior May-July 2019 were used to estimate the scattering over top 50 m of water column. It displayed a strong diel signal, with higher night, consistent normal vertical migration planktonic organisms. However, nocturnal decreased abruptly on 10 June, coincident end wi...

Observations of open-ocean deep convection indicate that it is a highly localized phenomenon, occurring over areas of tens of kilometers in diameter. The cause of this localization has been ascribed to ‘‘preconditioning’’— the local weakening of the stable density stratification associated with upwardly domed isopycnal surfaces in a surface-intensified cyclonic circulation. However, most numeri...

Seeds from five lots each of Echinacea angustifolia DC, and E. pallida (Nutt.) Nutt. were germinated in a growth chamber in light (40 μmol·m(-2)· s(-1)) or darkness at 25 °C for 16 to 20 d after soaking in 1 mM ethephon or water for 10 min, or moist stratification at 4 - 6 °C for two weeks. Either light or ethephon promoted seed germination of E. angustifolia and E. pallida, in comparison with ...