Results 51 to 60 of about 2,252,218 (96)
Evaluate the integrative effects of irrigation water level, furrow irrigation methods, and nitrogen fertilizer rate on tomato yield in semi-arid southern Ethiopia. [PDF]
HeliyonEbstu ET, Muluneh M.
europepmc +1 more source
International Research Journal of Modernization in Engineering Technology and Scienceopenaire +1 more source
Some of the next articles are maybe not open access.
Journal of Hydrology, 1968
AN INSTRUMENT WAS DESIGNED TO INDICATE ANY CHANGE IN THE UNDERGROUND WATER LEVEL. THE DESIGN APPROACH WAS TO USE THE CONDUCTIVITY OF THE WATER AS THE SENSING MECHANISM, SINCE ONLY A SMALL AMOUNT OF CURRENT FLOW THROUGH THE WATER IS REQUIRED TO GENERATE A USEABLE SIGNAL. AFTER SEVERAL WEEKS OF USE, THE ALUMINUM ELECTRODES WERE BADLY CORRODED.
K.H. McGary, M. Wilhelmsen, P. Boren
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AN INSTRUMENT WAS DESIGNED TO INDICATE ANY CHANGE IN THE UNDERGROUND WATER LEVEL. THE DESIGN APPROACH WAS TO USE THE CONDUCTIVITY OF THE WATER AS THE SENSING MECHANISM, SINCE ONLY A SMALL AMOUNT OF CURRENT FLOW THROUGH THE WATER IS REQUIRED TO GENERATE A USEABLE SIGNAL. AFTER SEVERAL WEEKS OF USE, THE ALUMINUM ELECTRODES WERE BADLY CORRODED.
K.H. McGary, M. Wilhelmsen, P. Boren
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Nuclear Engineering and Design, 1987
Abstract The possibility of measuring the water level in a PWR by studying the natural frequency of its pendular oscillation is discussed. The effect is complicated both by the complex internals and by the generation of surface waves when the vessel is partially full. For small losses of inventory the effects are measurable, but not large.
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Abstract The possibility of measuring the water level in a PWR by studying the natural frequency of its pendular oscillation is discussed. The effect is complicated both by the complex internals and by the generation of surface waves when the vessel is partially full. For small losses of inventory the effects are measurable, but not large.
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Water Level Indicator using Ultrasonic Sensor to Measure Water Level
2022Coca, Teresa Mae +1 more
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Monitoring water levels in retention basins is crucial for effective water resource management and the prevention of natural disasters such as floods and droughts. The aim of this work is to design and implement a continuous water level measurement device using Internet of Things (IoT) principles.
Hrdlička, Matěj, Mlýnek, Petr
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Hrdlička, Matěj, Mlýnek, Petr
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Water Level Measurements, Hydrographs, and Water Level Maps
1981S. MANDEL, Z.L. SHIFTAN
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