Example of hydraulic structures in any dam: Spillway/Weir : liquid flows over device Underflow sluice gate : liquid flows under device These devices can be used to control the flow rate‚ and to measure it. 6 Introduction Water from the reservoir of a dam is released through two principal types of structures: Hydraulic structures used for constant flow of pressure. Example: underflow sluice gates and pipes. Hydraulic structures used for flow in open
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Common VHFs Diseases * Dengue * Ebola * Lassa * Marburg * Yellow Fever VHFs Carriers and Transmission Most VHFs viruses naturally reside in an animal reservoir host or arthropod vector. They totally depend on the hosts for replication and survival. Usually rodents and arthropods are the main reservoirs for VHFs viruses. Notoriously arthropods and mosquitoes are the vectors of some of the illnesses. Viruses causing hemorrhagic fever most commonly occur in tropic areas of
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energy source. Interestingly‚ 20% of the world’s electricity use was generated by hydroelectric power in 2010. It’s the most renewable source in the world. The hydropower machine was made to catch rain water and surface run-off. It takes water from reservoirs‚ usually behind a dam. The water rushes in and the water gates funnel into a pipe where the force of falling water turns it. The water lands on the turbines until the shafts connect to a generator creating the one and only – energy! This process
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with the priesthood from my home ward. You could say he caught the fever‚ and when I got home‚ he wanted to share it with me. I was as skeptical as so many others‚ but finally I gave in. A few weeks later‚ we were standing on the side of another reservoir. A deep fog had settled over the lake and as you breathed it in‚ everything‚ from your nose to your lungs‚ burned from the ice crystals it contained. When we got to a good spot‚ I was surprised to see my dad drill two holes in the ice only feet from
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join the Indian Irrigation Commission. He implemented an extremely intricate system of irrigation in the Deccan area. He also designed and patented a system of automatic weir water floodgates that were first installed in 1903 at the Khadakvasla Reservoir near Pune. These gates were employed to raise the flood supply level of storage in the
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v Fletcher(1868)‚ the defendant‚ a mill owner. Had paid independent contractors to make a reservoir on his land‚ which was intended to supply water to the mill.During the construction‚ the contractors discovered the shafts and passages of an old coal mine situated on neighbouring land‚ belonging to the claimant. The contractors could have blocked up these shafts‚ but did not and as result‚ when the reservoir was filled‚ the water from it burst through the shafts and flooded the claimant’s mine‚ causing
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are suspended in midair‚ they receive the maximum amount of oxygen possible. This method is also the most nutrient-efficient‚ because you need only provide what the plants require‚ and any nutrient that is not absorbed is drained back into the reservoir and recycled much like the previous methods. It is of utmost importance that the atmosphere in which the roots grow is maintained at 100% relative humidity to prevent dehydration. A drawback to current aeroponic systems is maintaining root health
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improving navigation‚ creating a reservoir of water to supply industrial uses‚ generating hydroelectric power‚ creating recreation areas or habitat for fish and wildlife‚ retaining wet season flow to minimize downstream flood risk and containing effluent from industrial sites such as mines or factories. Some dams can also serve as pedestrian or vehicular bridges across the river as well. When used in conjunction with intermittent power sources such as wind or solar‚ the reservoir can serve as pumped water
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WAVE ENERGY Chapter 2: Energy Technology 2.1 Source of Wave Energy Ocean waves are caused by the wind as it blows across the open expanse of water‚ the gravitational pull from the sun and moon‚ and changes in atmospheric pressure‚ earthquakes etc. Waves created by the wind are the most common waves and the waves relevant for most wave energy technology. Wave energy conversion takes advantage of the ocean waves caused primarily by the interaction of winds with the ocean surface. Wave energy is
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Foundations in MicrobiologySeventh Edition 13.1 We Are Not Alone The human body exists in a state of dynamic equilibrium Many interactions between human body and microorganisms involve the development of biofilms Colonization of the body involves a constant “give and take” Contact‚ Colonization‚ Infection‚ Disease Microbes that engage in mutual or commensal associations – normal (resident) flora ‚ indigenous flora‚ microbiota Infection – a condition in which pathogenic microbes penetrate
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