نتایج جستجو برای: changes in earth
تعداد نتایج: 17033201 فیلتر نتایج به سال:
Past major biological turnovers are coeval to large injections of CO2 into the atmosphere–ocean system that often linked emplacement Large Igneous Provinces. The impact these pulses on ecosystems is however different at times, and this difference contingent initial boundary conditions. Here, we show how delayed vegetation recovery from Permo–Triassic mass extinction (ca. 252 Ma) continuing amal...
This paper is a study to understand how climate changed last fifty years. There are two theories: the first one considers solar variability and influence of those alterations on climate; second blames human activity consequences temperatures disruption environment created by humans. Our conclusions pointed out that dimensions involved between Earth Sun, Earth/Atmosphere, can disturb temperature...
For a hypothetical planet on a highly eccentric orbit, we have calculated the osculating orbital parameters and its closest approaches to Earth and Moon over a period of 750 kyr. The approaches which are close enough to influence the climate of the Earth form a pattern comparable to that of the past climatic changes, as recorded in deep sea sediments and polar ice cores.
Neuromodulation is a process of inhibition, stimulation, modification and regulation or therapeutic alteration of activity, electrically and chemically in the peripheral, central or autonomic nervous systems. Direct electric current or electric field alternates the function of nervous system. Coupling the human organism with the Earth directly or via a wire conductor changes the electric potent...
Reduction of quality and soil productivity due to organic carbon losses is one of the most important consequences of land use changes, that creates irreparable effects on the soil. To evaluate the land use effect on the amount of soil organic carbon in Vertisols, Sartip Abad series with extent of 1850 hectare in south of Bilehvar area in Kermanshah province was studied by using the completely r...
Constructed upon a height (by footing) or breaking in to the ground, in a building, making a close relation between earth and soil is of great importance. In addition, earth as a prior factor in creation of a shade and residence, plays a crucial role in architecture history. Throughout the different area, earth is paid attention differently: as a source of cool (in China), a source of heat (Cap...
Twenty fifth of Dhilqidah is called “the spreading of the earth”. It is commonly believed that at the beginning all the surface of the earth was inundated by the water of the first torrential rains. Water gradually receded to ditches on the earth and in consequence the lands surfaced, and with the passage of time they were spread, the first place emerging out of water being that of Kaba. In t...
Climate change caused the changes in earth surface temperature, precipitation, sea surface level, wind speeds, wave heights, coastlines, etc. Estimation of the effect of climate change is of great importance in long-term studies of such parameters. In this study, the effect of climate change on average wind speed near Chabahar, Gulf of Oman is assessed until the year 2100. For this purpose, win...
earth-shelter construction is one of the aspects in architecture where the thermal mass of the earth behind the outer walls are applied in order to reduce heat loss and keep the internal temperature at human comfort range. in case of earth-shelter buildings, housing is especially important. as for its applicability the earth-shelter provides good housing. typological studies of earth-shelter co...
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