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Magnetic susceptibility measurements are performed on 40 sediment samples collected from the Ponnaiyar river, Tamilnadu. Measurement of magnetic susceptibility of sediments, reflecting magnetic enhancement of top sediments due to the atmospherically deposited magnetic particles of anthropogenic origin as well as approximate determination of environmental(More)
In the title compound, C(18)H(17)NO(4), the hy-droxy-ethanimine group is essentially coplanar with the ring to which it is attached [C-C-N-O torsion angle = 179.94 (14)°]. The mol-ecules are linked into cyclic centrosymmetric R(2) (2)(6) dimers via O-H⋯N hydrogen bonds and the crystal packing is further stabilized by C-H⋯O inter-actions.
Industrial noise induced hearing loss is an increasingly prevalent disorder that is the result of exposure to high intensity sounds, especially over a long period of time. .Noises of industry can cause partial deafness, interference with communication by speech and annoy. These undesirable effects are best avoided by reducing the noise to acceptable levels.(More)
Only five moderate and large earthquakes (M w Ն5.7) in India—three in the Indian shield region and two in the Himalayan arc region—have given rise to multiple strong ground-motion recordings. Near-source data are available for only two of these events. The Bhuj earthquake (M w 7.6), which occurred in the shield region, gave rise to useful recordings at(More)
In a hybrid system of photo voltaic and fuel cell, the fuel cell can be kept as a backup source replacing a battery. The hydrogen for the fuel cell can be produced from an electrolyser which runs by the excess solar power during the off peak hours. The hydrogen fuel can be stored in a storage tank and can be used during the absence of solar energy. The low(More)
In the title compound, C(20)H(19)NO(5), the dihedral angle between the mean plane of the pyran ring (which has a half-chair conformation) and the benzene ring of the chromeno ring system is 7.21 (7)°. The dihedral angle between the mean plane of the chromeno ring system and the isoxazole ring is 21.78 (6)°, while the isoxazole ring forms a dihedral angle of(More)
In the title compound, C(27)H(30)N(3)O(3)P, the pyrazole ring is essentially planar [maximum deviation = 0.002 (2) Å] and it forms dihedral angles of 9.3 (1) and 40.2 (1)°, respectively, with the phenyl rings attached to the N and C atoms. In the crystal, pairs of centrosymmetrically related mol-ecules are linked into dimers by N-H⋯O hydrogen bonds.