They rely on the supply of external energy into the reservoir in the form of injecting fluids to increase reservoir pressure, hence replacing or increasing the natural reservoir drive with an artificial drive.

Zhang Heng was the first in China to add an extra compensating tank between the reservoir and the inflow vessel, which solved the problem of the falling pressure head in the reservoir tank.

Implementing water protection measures to minimize radionuclide seepage into Kiev reservoir through watercourses

Hydraulic mortar was not available in ancient China, possibly due to a lack of volcanic ash.

These systems use a flywheel and valve attached to a hydraulic line that feeds the brake cylinders.

In addition, a hydraulic servo system located in the wings would activate the Volitan's performance sail system.

Human settlements in watersheds may modify hydraulic systems and destabilize slopes, thereby increasing flood and landslide hazards.

The reservoir must also be permeable so that the hydrocarbons will flow to surface during production.

The Sobradinho reservoir is one of the largest artificial lakes in the world, with an area of .

The Navy water source is a surface reservoir (Fena Lake) in the southern part of the island.

Neither the source of the outbreak nor the reservoir where the virus hides between outbreaks is known.

In the northern city of Korhogo, the supply reservoir is nearly dry, causing an acute water shortage.

Of course, technological advances, like hydraulic fracturing ( fracking ) in the shale gas industry, could increase supply and therefore lower prices.

Because there's no oxygen there, it's the largest reservoir of hydrogen sulfide on Earth. Shipwrecks are perfectly preserved.

Sometimes an existing mill pond or other artificial reservoir is available and can be adapted for power production.

It normally works by admitting water from a cold water reservoir into a flexible hose in the base of the reservoir leading directly to a thin metal tube or heating chamber (usually, of aluminum), where a heating element surrounding the metal tube heats the water.

Today s Russia is a gigantic reservoir of raw materials, and its economy relies heavily on commodities mining and drilling.

River basin organizations such as that established for the Nile, Niger, or Senegal rivers help facilitate dialogue between states that share hydraulic resources.

States shall take all appropriate measures to prevent, insofar as possible, any pollution of, and the degradation of the hydraulic integrity of, aquifers.

Rural hydraulic projects, which ensure access to water for these populations over large stretches of land, can prove to be efficient conflict prevention tools.

Indeed, thanks to the new techniques in hydraulic fracturing and horizontal drilling, shale gas may well become the dominant energy resource of the future.

The reservoir volume is about equivalent to the annual flow of the Nile at the Sudanese Egyptian border (65.5 billion cubic meter).

Reservoirs By far the largest reservoir of Earth's oxygen is within the silicate and oxide minerals of the crust and mantle (99.5 ).

Short settling time This hydraulic selection pressure on the microbial community allows the retention granular biomass inside the reactor while flocculent biomass is washed out.

These include natural water displacing oil downward into the well, expansion of the natural gas at the top of the reservoir, expansion of gas initially dissolved in the crude oil, and gravity drainage resulting from the movement of oil within the reservoir from the upper to the lower parts where the wells are located.

This area, which contains perhaps the largest reservoir of biodiversity left on earth, is exploited by many countries, but managed by no one.

However, while 90 of world reserves of hydraulic energy are concentrated in underdeveloped regions like sub Saharan Africa, HVDC technology remains the preserve of developed countries.

Second, the costs of the insurance premium the outsize, largely dollar denominated reservoir of China s foreign exchange reserves have been magnified by political risk.

Whereas extraction of America s extensive reserves of natural gas was previously thought to be unfeasible, technologies such as hydraulic fracturing ( fracking ) have ushered in a shale gas revolution.

With a large reservoir of surplus savings and a budget deficit of less than 2 of GDP, it has the wherewithal to fund such efforts.

The complex was relocated in its entirety in 1968, on an artificial hill made from a domed structure, high above the Aswan High Dam reservoir.

Egypt fears a temporary reduction of water availability due to the filling of the dam and a permanent reduction because of evaporation from the reservoir.

Clean water is trucked from a central reservoir outside the capital and sold to individual households and businesses at 5 to 10 cents per gallon.

A typical oilfield yields only 20 of the reservoir, with close to 63 remaining buried in the earth even when the most advanced technologies are used.

He reacted to moral shabbiness with revulsion, but also with fear. He saw it as a source of disposable masses, a human reservoir for totalitarian movements.

Lake Powell is a reservoir on the Colorado River, straddling the border between Utah and Arizona (most of it, along with Rainbow Bridge, is in Utah).

BRUSSELS The global energy community is abuzz with excitement about hydraulic fracturing, or fracking, a newish technology that has opened formerly inaccessible reserves of gas trapped in underground shale formations.

An analog computer is a form of computer that uses the continuously changeable aspects of physical phenomena such as electrical, mechanical, or hydraulic quantities to model the problem being solved.

Indeed, both Hollande and Sarkozy represented those adapted to globalization and viewed the rest as a reservoir of voters to be seduced, not as a new underclass.

The United Kingdom has been reluctant to join the hydraulic fracturing (or fracking) revolution. Yet tapping the Bowland Shale could reignite the UK economy and deliver huge cuts in CO2 emissions.

The dam is expected to the increase energy production of Cameroon with a planned capacity of 7.250 billion cubic meters for a reservoir that will cover 610 km2.

Saline effluent from the treatment plant also led to an increase in the salinity of irrigation waters drawn from the King Talal reservoir and the King Abdullah canal.

The supply of water was derived from a natural head of water, the water mains, or a specialised high pressure water supply such as that provided by the London Hydraulic Power Company.

It was also suggested that the definition of cultural heritage should be broadened to include archives and traditional registries, food and organic fertilizer storage spaces, hydraulic canals and techniques for soil cultivation.

But China is still a very poor country, at barely one tenth the income level of the US. It has a huge reservoir of surplus labor in the countryside.