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Updated: Jul 17, 2025

Continuous Hydrologic and Water Quality Monitoring of Vernal Ponds
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Continuous Hydrologic and Water Quality Monitoring of Vernal Ponds

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太阳能光伏供电地下水抽水系统的可靠性和性能评估

Nesma Mohamed Ahmed1, Ahmed Mahrous Hassan1, Mohamed Abdelwahab Kassem1

  • 1Agricultural Engineering Department, Faculty of Agriculture, Cairo University, Giza, Egypt.

Scientific reports
|August 30, 2023
PubMed
概括

太阳辐射显著影响光伏水系统 (PVWPS) 的性能,增加日光更高的水产量. 面板温度对效率产生负面影响,每摄氏度上升0.48%的下降.

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Application of the Energy Equation01:04

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The application of the energy equation to centrifugal pumps is a fundamental principle in fluid dynamics and engineering. In this scenario, the energy equation is used to calculate the flow rate of a centrifugal pump responsible for transferring water between two reservoirs at different elevations. The pump applies an energy input of 7500 joules per second, and the vertical difference between the lower and upper reservoirs is 10 meters. Additionally, the head loss due to friction and other...
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Distribution Reliability and Automation01:25

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Distribution reliability in electrical power systems is critical for ensuring an uninterrupted power supply to consumers at minimal cost. According to IEEE Standard Terms, reliability is the probability that a device will function without failure over a specified time period or amount of usage. For electric power distribution, this translates to maintaining continuous power supply and addressing customer concerns over power outages. Several indices, as defined by IEEE Standard 1366-2012, are...
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Design Example: Design of an Irrigation Channel01:27

Design Example: Design of an Irrigation Channel

Trapezoidal channels are widely used in irrigation systems due to their cost-effectiveness and efficiency in conveying water. Trapezoidal channels feature a flat bottom and sloping sides, making them stable and easier to construct compared to other shapes. The bottom width and side slope ratio are determined based on the required flow capacity and site conditions. The side slope is kept gentle for unlined channels to prevent soil erosion.Hydraulic parameters in channel design include the flow...
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