Clash between purse seine and artisanal fishermen at cochin

The introduction of purse seining in Kerala in the traditional grounds has been vehemently opposed by the indigenous fishermen and has, on many occasions, resulted in skirmishes between the two from the very beginning. This articles discusses about the conflict between purse seine and artisanal fishermen and suggestions to minimize this conflicts are specified

तारली और मलबार सोल के स्टाँक पर बारिश का प्रभाव

कृपया पूरा लेखा पढ

Supplementary for waste Heat Recovery in Electrical Power Generation

In industries such as oil, gas plant and steel plants be accompanied among large amount of heat and that may not be utilized for the plant operation. This wasted heat energy is able to be utilized for supplementary power production. The water flow system over the heating unit may produce the steam and is used for supplementary power production. During this process, high quantity of coolant in the plant is circulated under low temperature and it may reduce the frequency level in the system when the turbine speed decreases. In this project, the flywheel mechanism is suggested to beat this trouble. Flywheel is an automatic machine that can responds in short time and is used to store turning force. The energy storage flywheel is planned to connect on breaker, which will compensate the variation frequency, and it will be maintained as constant. The proposed method will be verified with MATLAB/Simulink model

Fluctuations in the mackerel catches at Cochin

The heavy catches of mackerel were observed during 21st and 28th September. 1982 ,at the Fisheries Harbour, Cochin,by purse-seiners, and since these are quite unprecedented in the recent past, observations made on the biology of the fish and its fishery are presented. The overall size-range of the fish during the month was 153-276 mm and the modal sizes varied between 180 and 250 mm suggesting that the fishery was supported mainly by 1-year and 2-years-old individuals. A majority of fish (58%) were in spent condition followed by immature, spent-recovering and developing individuals. The 92% of the bumper catch of 21st September comprised of spent fish followed by spent-recovering individuals of 2-years-old. Size ranges and dominant modal sizes of mackerel in the purse seine catches during September were compared. The high catch rates, on some these days in September indicates that the mackerel shoals available in the inshore waters were not adequately exploited before the introduction of purse seiners in the area.The comparison of results of the monthly mackerel landings and temperature and salinity values at different centres by various authors reveals that certain optimal levels of temperature and salinity is suitable for the mackerel fishery

On the stranding of sei whale, Balaenoptera borealis Lesson at Mandapam along the Palk Bay coast

On 20th January, 1992, an adult female sei whale, measuring 14.0 m in total length and weighing about 10 tonnes stranded at Theedai near the marine fish farm of Central Marine Fisheries Research Institute, Mandapam Camp

On A Blue Whale Balaenoptera Musculus Stranded At Chappa Beach, Narakkal, Cochin, Southwest Coast Of India

The news about the stranding of a whale at Chappa beach, Narackal was received on 2-9-1985 and an immediate visit to the landing centre was made for further observations and studies

A note on the monsoon fishery for threadfin breams off Cochin

The threadfln bream fishery by shrimp trawlers, constituted by Nemipterus japonicus and N. mesoprion, is subject to great seasonal and annual flucuations, the total catch, as well as the catch rate, being highest during SW monsoon. It appears from the catch trends at various depths that nemipterids, which normally inhabit in the depth zone 75-100 m, migrate to 35-40 m during monsoon, coinciding with upwelling. The hydrographic conditions which might be causing this shift of the population is discussed

Observation of Pure Spin Transport in a Diamond Spin Wire

Spin transport electronics - spintronics - focuses on utilizing electron spin as a state variable for quantum and classical information processing and storage. Some insulating materials, such as diamond, offer defect centers whose associated spins are well-isolated from their environment giving them long coherence times; however, spin interactions are important for transport, entanglement, and read-out. Here, we report direct measurement of pure spin transport - free of any charge motion - within a nanoscale quasi 1D 'spin wire', and find a spin diffusion length ~ 700 nm. We exploit the statistical fluctuations of a small number of spins ($\sqrt{N}$ < 100 net spins) which are in thermal equilibrium and have no imposed polarization gradient. The spin transport proceeds by means of magnetic dipole interactions that induce flip-flop transitions, a mechanism that can enable highly efficient, even reversible, pure spin currents. To further study the dynamics within the spin wire, we implement a magnetic resonance protocol that improves spatial resolution and provides nanoscale spectroscopic information which confirms the observed spin transport. This spectroscopic tool opens a potential route for spatially encoding spin information in long-lived nuclear spin states. Our measurements probe intrinsic spin dynamics at the nanometre scale, providing detailed insight needed for practical devices which seek to control spin.Comment: 7 pages, 2 figures, under consideration at Nature Nanotechnolog

On a juvenile whale shark Rhincodon typus Smith landed at Cochin

Report on an immature female whale shark of 1.5 tonnes caught about 20 km southwest of Cochin, India