impulsive and convective frequencies are one of the most important subjects for evaluation of the seismic behavior of tanks. these two frequencies are defined by housner and used for obtaining rayleigh damping in time history analysis. aci 350 and nzsee standards have suggested some analytical solutions for finding convective and impulsive frequencies. these frequencies can also extract from mo...

the main objective of this article is evaluation of the simplified models which have been developed for analysis and design of liquid storage tanks. the empirical formulas of these models for predicting maximum sloshing wave height (mswh) are obtained from mass spring models (msm). a finite element modeling (fem) tool is used for investigating the behavior the some selected liquid storage tanks...

Radiotracer technique was used to measure the Residence Time Distribution (RTD) of material in 4 leach tanks at AngloGold Ashanti, Iduapriem gold processing plant. The investigation was conducted to determine the mean residence time and possible flow malfunctions in the tanks. The liquid phase of gold ore slurry was traced using I radiotracer which was instantaneously injected into the feed str...

the aim of this study is to investigate drinking water contamination and to identify potential sources of contamination during the water production, delivery process and in water tanks in the kindergartens of gaza strip governorates. the samples were taken from water tanks in the kindergartens, water tankers and private desalination facilities in the gaza strip and analyzed for chemical and bio...

Most of the Oil Pumping Units (OPU) are manually monitored. This existing oil-pumping systems use a high power-consuming process, is incapable of OPU’s structural health monitoring. In this paper, a sensor network based intelligent control is proposed for power economy and efficient oil well health monitoring. The condition of the oil storage tanks can be monitored using sensors like level sens...

The Hanford Site in southeastern Washington State is the location of the largest nuclear waste storage area in the United States. Since plutonium production facilities at Hanford were shut down in 1987,cleaning up the leftover waste at the Hanford Site has become one of the largest environmental cleanup projects in history. Legal, political, technical, and social aspects of the cleanup contribu...

In this color mixing machine we use three tanks which are of Red, Blue and Yellow. The three tanks consist of level sensor and fitted with hydraulic line. The hydraulic line consist of solenoid valve.The tank consists of color Steiner of Red, Blue and Yellow. The Steiner flows from hydraulic line into the mixing tank through solenoid valve. The solenoid valve is a digital output device that is ...

IWMI receives its principal funding from 58 governments, private foundations and international and regional organizations known as the Consultative Group on International Agricultural Research (CGIAR).

Cylindrical steel tanks are important components of many industrial plants such as oil refineries and chemical plants. Usually failure of cylindrical tanks leads to serious consequences. During the past earthquakes such as 1964 Alaska and 1999 Turkey seismic performance of cylindrical tanks revealed that tanks are seismically vulnerable. Therefore, evaluation of seismic performance of these str...