Low albedo sediments cover >107 km2 in the northern lowlands of Mars, but the composition and origin of these widespread deposits have remained ambiguous despite many previous investigations. Here we use near-infrared spectra acquired by the Mars Express OMEGA (Observatoire pour la Minéralogie, l’Eau, les Glaces, et l’Activité) imaging spectrometer to show that these sediments exhibit spectral ...

Long-term global land surface fractional vegetation cover (FVC) products are essential for various applications. Currently, several global FVC products have been generated from medium spatial resolution remote sensing data. However, validation results indicate that there are inconsistencies and spatial and temporal discontinuities in the current FVC products. Therefore, the Global LAnd Surface ...

The aim of this research is to carry out the heat transfer analysis PVT hybrid active solar still (HASS) at different water depth obtain maximum output. Experimentation performed for validation thermal modeling with and without flowing water, having 0.15m in basin. During experimentation, flows above glass cover. Theoretically calculated values basin liner, temperature yield obtained using are ...

One of the most significant materials in a solar panel is glass, which provides transparency, UV protection as well mechanical and chemical resistance. In this work, we describe production prototypes four modules made using borosilicate, zinc-tellurite, Pr$^{3+}$ doped float glass cover materials. The performance these was evaluated under simulator, device developed to monitor all real conditio...

High-power and lightweight photovoltaic (PV) modules are suitable for building-integrated (BIPV) systems. Due to the characteristics of installation sites, BIPV solar limited by weight area. In this study, we fabricated glass-free shingled-type PV with an area 1040 mm × 965 mm, which provide more conversion power compared conventional at same installed Further, employed ethylene tetrafluoroethy...

The Sierra Nevada’s biological distinction and diversity are almost as legendary as its spectacular peaks and beautiful granite landscapes. The Sierra Nevada is recognized as a zoogeographic region on the basis of the coincidence of species ranges (for example, Udvardy 1969, 1975; Welsh 1994). Udvardy (1969) defined the Sierra Nevada bioregion as bounded by the Great Basin to the north and east...

This paper reported the experimental testing of a triangular and conventional basin solar still (TBSS CBSS). Solar absorber are made glass polyethylene cover, respectively, with an area 0.25 m2. Square same m2 square cover for condensation was fixed. Experimentations were conducted during month December 2018, different natural criteria such as intensity, wind speed, surrounding ambient temperat...

The low freshwater productivity of a conventional solar still is considered challenge for researchers due to the high temperature glass cover or basin water depth. In current work, newly designed was suggested according climatic conditions Yekaterinburg/Russia, which included an enhanced condensation and evaporation process by spraying thin film on hot absorber plate then passing generated vapo...