نتایج جستجو برای: water and earth
تعداد نتایج: 16943378 فیلتر نتایج به سال:
Introduction: In the context of resumed lunar exploration , the existence of water ice at the lunar poles has become a pressing question. In support of human return to the moon, the confirmation of the water ice signature detected from orbiting spacecraft [1,2] is a high-priority task that can only be accomplished in situ. Therefore, a landed mission to the permanently shadowed lunar polar crat...
Introduction: The Earth is the only planet to harbor life, as we know so far. Adequate amount of water and atmosphere on the Earth has been thought to be essential for the emerge and evolution of life [1]. Therefore, investigating the origin and formation of ocean and atmosphere on the Earth is important, and it would answer the questions why we are here and whether or not another life exists i...
Introduction: By knowing the water consumption rate in different sectors can be done essential planning the water supply. In this study was investigated the rate of per capita domestic water consumption in ardakan urban area and its relationship with water consumption variables. Methods: this descriptive - cross sectional study and was conducted to cluster sampling method over 300 families in ...
Applied water quality monitoring of coastal zones or aquatic systems, such as rivers and lakes, requires processing of multiple images with variable temporal and spatial resolution. Compatible results in this case can be obtained by sensor-independent processing techniques. The physics-based, flexible, modular image processing system MIP can ensure standardized product outputs for a variety of ...
The burden of life on the earth is the source of biological contamination in water. Nanotechnology has promising contributions in control of microbial contaminations and medicinal plants further increase these properties. Presently, copper acetate and nickel oxide nanoparticles were synthesized using 1mM solution of each with Ziziphus mauritiana leaves extract as reducing agent. Nanoparticles w...
Of all the available resources given to mankind, sunlight is perhaps most abundant renewable energy resource, providing more than enough on earth satisfy needs of humanity for several hundred years. Therefore, it transient and sporadic that poses issues with how can be harvested processed when sun does not shine. Scientists assume electro/photoelectrochemical devices used water splitting into h...
Geothermal Heat Pumps, or Ground Source Heat Pumps (GSHP), are systems combining a heat pump with a ground heat exchanger (closed loop systems), or fed by ground water from a well (open loop systems). They use the earth as a heat source when operating in heating mode, with a fluid (usually water or a water-antifreeze-mixture) as the media transferring the heat from the earth to the evaporator o...
General constraints on geyser phenomena are developed and applied to speculative methane geysers on Titan. Variation of boiling point with depth of ethane–methane–nitrogen fluids is found to be of order 0.3 K m−1, in contrast with around 2 K m−1 for water on Earth. It is found that geysers are possible on Titan but require enhancements of ∼100 above global-average geothermal heat flux, a factor...
Background and Objectives: Rare earth elements (REEs) are examples of emerging contaminants that have recently been increasingly spread to the environment through the extensive use in modern commodities, medical facilities, petroleum refining, mining, chemical fertilizers, electronic wastes and recycling plants. However, these elements are considered due to their potential human and ecological ...
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