Water on Mars has been explained by invoking controversial and mutually exclusive solutions based on warming the atmosphere with greenhouse gases (the ‘‘warm and wet’’ Mars) or on local thermal energy sources acting in a global freezing climate (the ‘‘cold and dry’’ Mars). Both have critical limitations and none has been definitively accepted as a compelling explanation for the presence of liqu...

Although evaporation of solvent from a clean surface can be understood qualitatively in terms of spinodal dewetting or nucleation and growth, the detailed dynamics resulting from these mechanisms are not necessarily simple. In both homogeneous and heterogeneous limits kinetic feedback can generate nonexponential decay of solvent density with several characteristic time scales. For homogeneous e...

MgO nanowires with a branched structure were fabricated using thermal evaporation method in air at atmospheric pressure. The nanowire was made up of two parts: primary central trunk and lots secondary branches. had 4-fold symmetrical structure. branches grew perpendicular on the four side facets trunks square cross-sections. also single row vertically well aligned same direction each other. sca...

Carbon dioxide (CO2) is one of the major contributors to the greenhouse effect. The power and industrial sectors combined account for about 60% of the global CO2 emissions [1]. CO2 capture and storage (CCS), which involves the processes of capture, transport and long-term storage of carbon dioxide, is a technology aimed at reducing greenhouse gas emissions from burning fossil fuels during indus...

A vapor generator for multicomponent organic solvents was developed and its performance was investigated experimentally. The vapors were generated from the surface of a sintered sphere of glass beads containing the organic solvents. The solvents were automatically supplied from the solvent reservoir to the sphere by suction pressure caused by the evaporation of the solvents and the generated va...

Charged droplets, produced by electrostatic dispersion of solutions of amino acids and peptides are driven by a potential difference a countercurrent to a flow of heated nitrogen bath gas. Evaporation of solvent from those droplets increases surface charge density, resulting in subdivision into smaller charged droplets. Each smaller droplet repeats that sequence until the ultimate result is a d...

The atmospheric radiative forcing is a central theme of climate change impact studies. The presence of Atmospheric Brown Clouds due to increased aerosol concentrations and green house gases such as water vapour, CO2 alter solar radiation and atmospheric thermal regimes. Both have strong feedbacks on open water evaporation. The measured daily global (direct + diffuse) insolation for a period of ...

the main purpose of this study is the survey of the atmospheric low pressure effects at sea level oscillations in the qeshm channel. for this purpose, the curves of the pressure on the persian gulf and oman sea, during the passing of the atmospheric low pressure system, are extracted across the region. during the time of occurrence of these events, sea level oscillations in the coastal areas of...