A water quality monitoring system in hydroponics with a Total Dissolved Solid Sensor (TDS) equipped the Arduino UNO microcontroller has been developed. The TDS SEN0244 sensor read sensitivity, which will display value of reading on LCD. Furthermore, if output is less than 2.30 Volts or 1000 ppm, buzzer sound once, and dosing pump rotate to automatically add nutrients B. twice more 2.40 1200 ppm...

We evaluated the impact of land cover on fish assemblages by examining relationships between stream hydrology, physicochemistry, and instream habitat and their association with fish responses in streams draining 18 watersheds of the Lower Piedmont of western Georgia. Several important relationships between land use and physicochemical, hydrological, and habitat parameters were observed, particu...

the aim of this study was to determine the best interpolation method to achieve spatial and quality distribution of springs from point view (tds) and ph in mirdeh watershed nw kurdistan province. field sampling collections was done and 268 springs of total 904 springs of whole watershed selected randomly. electrical conductivity and ph of springs was determined and 168 springs was used as train...

River water salinity is a significant concern in many countries, considering agricultural and drinking usages. Therefore, prediction of amount of salinity is a necessary tool for planning and management of water resources. Since Achechay River Basin in East Azerbaijan province in Iran passes through saline zones, use of the water for irrigation has become problematic. In this regard, prediction...

INTRODUCTION Solubility is defined in quantitative terms as the concentration of solute in a saturated solution at a certain temperature and pressure. Qualitatively it is defined as the spontaneous interaction of two or more substances to form a homogenous molecular dispersion. The United State Pharmacopoeia (USP) and national formulary lists the solubility of drug as the number of milliliters ...

The study was conducted in 2013/14 with the objective of determining the effects of Bahir Dar textile factory effluents on the head of Blue Nile River water quality. Dissolve oxygen was higher at the upstream site of the river, whereas BOD5, TDS, and total alkalinity values were higher at wastewater outlet of the factory site. The mean values of dissolved oxygen, BOD5, and total alkalinity were...

INTRODUCTION Mosquito larval ecology is important in determining larval densities and species assemblage. This in turn influences malaria transmission in an area. Therefore, understanding larval habitat ecology is important in designing malaria control programs. METHOD Larval surveys were conducted in 20 localities under five sentinel sites (Padavisiripura, Gomarankadawala, Thoppur, Mollipoth...

PURPOSE This study was conducted to investigate the relationship between serum total testosterone levels and scores on the Aging Male's Symptom (AMS) scale and the International Index of Erectile Function (IIEF) in men with erectile dysfunction with testosterone deficiency syndrome (TDS). MATERIALS AND METHODS From January 2005 to July 2008, 134 patients who complained of sexual dysfunction s...