1,482 research outputs found
Geotechnical Problems of Dam Sites and Their Solution with Reference to the Projects of Eastern India
Geotechnical problems of dam construction are associated with adverse geological conditions of the dam site like soft rock, fault, shear zone, joints, weathering, permeable bouldery deposit, soluble rocks, ancient slide etc. In many of the dam sites of eastern India where one or more of such adverse conditions exist, the dam could be safely constructed by treatment of foundation defects. In some cases, however, a new site with less geologic problem was chosen with consequent modification in the project scheme
Geotechnical Problems of Dam Sites and Their Solution with Reference to the Projects of Eastern India
Geotechnical problems of dam construction are associated with adverse geological conditions of the dam site like soft rock, fault, shear zone, joints, weathering, permeable bouldery deposit, soluble rocks, ancient slide etc. In many of the dam sites of eastern India where one or more of such adverse conditions exist, the dam could be safely constructed by treatment of foundation defects. In some cases, however, a new site with less geologic problem was chosen with consequent modification in the project scheme
Role of pairing interaction in neutron rich odd and even Zr nuclei
Neutron rich Zr nuclei with number of neutrons between = 50 and 82 are
investigated in the relativistic mean field approach in co-ordinate space. The
resonant levels in the positive energy continuum have been explicitly included
in the calculation. Odd nuclei have been treated in the blocking approximation.
Our calculation indicates that the dripline for odd mass isotopes is far away
from that for the even mass ones. Pairing interaction plays a significant role
in stabilizing the even isotopes, thus extending the dripline for them
Polyfluorene as a model system for space-charge-limited conduction
Ethyl-hexyl substituted polyfluorene (PF) with its high level of molecular
disorder can be described very well by one-carrier space-charge-limited
conduction for a discrete set of trap levels with energy 0.5 eV above
the valence band edge. Sweeping the bias above the trap-filling limit in the
as-is polymer generates a new set of exponential traps, which is clearly seen
in the density of states calculations. The trapped charges in the new set of
traps have very long lifetimes and can be detrapped by photoexcitation. Thermal
cycling the PF film to a crystalline phase prevents creation of additional
traps at higher voltages.Comment: 13 pages, 4 figures. Physical Review B (accepted, 2007
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Systemic administration of Follistatin288 increases muscle mass and reduces fat accumulation in mice
The present study describes the physiological response associated with daily subcutaneous injection of mice with recombinant follistatin288. This systemic administration of follistatin288 increases the follistatin levels in serum, indicating that the protein enters the circulation. The data suggest that a dose-dependent increase in body lean mass also occurs, together with an increase in muscle mass, possibly as a result of an increase in the size of the muscle fibers. After thirteen weeks of treatment, metabolic changes were observed; additionally, the switching of muscle fiber types was also apparent through myosin heavy chain remodeling, implying that changes are occurring at the molecular level. Furthermore, an increase in the muscle mass was associated with a significant decrease in the body fat mass. Overall, this study raises the possibility for the use of follistatin288 as an agent to treat muscle wasting diseases and/or to restrict fat accumulation by systemic administration of the protein
Anomalies, Horizons and Hawking radiation
Hawking radiation is obtained from the Reissner-Nordstr\"{o}m blackhole with
a global monopole and the Garfinkle-Horowitz-Strominger blackhole falling in
the class of the most general spherically symmetric blackholes
, using only chiral anomaly near the event horizon and
covariant boundary condition at the event horizon. The approach differs from
the anomaly cancellation approach since apart from the covariant boundary
condition, the chiral anomaly near the horizon is the only input to derive the
Hawking flux.Comment: minor corrections made, To appear in Euro. Phys. Letter
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