Fault Tolerance in Reversible Logic Circuits and Quantum Cost Optimization

Energy dissipation is a prominent factor for the very large scale integrated circuit (VLSI). The reversible logic-based circuit was capable to compute the logic without energy dissipation. Accordingly, reversible circuits are an emerging domain of research based on the low value of energy dissipation. At nano-level design, the critical factor in the logic computing paradigm is the fault. The proposed methodology of fault coverage is powerful for testability. In this article, we target three factors such as fault tolerance, fault coverage and fault detection in the reversible KMD Gates. Our analysis provides good evidence that the minimum test vector covers the 100 % fault coverage and 50 % fault tolerance in KMD Gate. Further, we show a comparison between the quantum equivalent and controlled V and V+ gate in all the types of KMD Gates. The proposed methodology mentions that after controlled V and V+ gate based ALU, divider and Vedic multiplier have a significant reduction in quantum cost. The comparative results of designs such as Vedic multiplier, division unit and ALU are obtained and they are analyzed showing significant improvement in quantum cost

Prospects of Grouper Culture in India

The "Groupers" of the genus Epinephelus are excellent marine food fishes in the Indo Pacific and Carribean regions and have assumed importance for commercial culture in recent year

Seasonal changes in the temperature, salinity And plankton volume at Port Blair, Andaman

The seasonal changes in the temperature, salinity and plankton volume at Port Blair, Andamans, during the period 1964 to 1970 have been investigated and the changes correlated with the meteorological conditions of the locality. The atmospheric temperature exhibited a clear double oscillation in a year, the maxima occurring in April and November. The range of fluctuation was generally less than 10°C. The surface temperature closely followed the atmospheric temperature and exhibited a clear double oscillation. The surface temperature was invariably lower than the atmospheric temperature. The temperature of the surface water steadily increased from January to April registering a sharp fall in May due to the onset of the south-west monsoon. The surface salinity increased steadily from January to April registering a fall in May which coincided with the onset of the monsoon. Higher values were restored during the post-monsoon period. The surface water was fairly rich in plankton during the colder months. An inverse relationship was noticed between the abundance of plankton and temperature/salinity

Laboratory bred prawns from Narakkal cultured in salt pan reservoirs at Tuticorin—a success story.

Rapid developments and fast changes are taking place in the field of prawn culture in india and abroad. Domestication of the culturable species of marine prawns, their induced maturation and spawning in captivity and mass production of stockable size of prawn seeds have become a reality in india chiefly due to the researches conducted at the narakkal prawn culture laboratory (npcl) of the central marinefisheries research institute. Establishment of a land-based maturation facility and development ofMass cultures of locally available live feed organisms—diatoms, rotifers and cladocerans—were the major contributory factors in achieving this break-through. As a result of these developments over one million prawn seeds, chiefly belonging to the indian prawn penaeus indicus were produced at the npcl in the eariy half of 1980.the prawn seeds produced at the npcl were byproducts of the experiments conducted there and not products of a concerted production programme. Although most of these seeds were used in the lab to land programme of the institute at the vypeen island and quilon, some were supplied to the prawn culturists at goa and tuticorin and also to the calicut research. Centre of the cmfri for experiments in the polythene lined ponds on the sandy beach of calicut. The main objective of these supplies was to study the problems associated with long distance transport and to evaluate their growth and survival in different ecological conditions

​कर्कट कृषि

Crab Farmin

On an accidental stranding, rescue and return of hump-back dolphins at Tuticorin harbour area

Reports on the accidental stranding and inadvertant landings of marine mammals, mostly dolphins, porpoises and dugongs by different gears such as drift gillnets, trawlnets, purse seines etc., along the Indian coasts are well documented by different workers in recent days. Consequent to the sustained efforts by different International Agencies, awareness is created among the public on the conservation of the endangered marine mammals and on certain occasions the people themselves get involved in the act of saving the lives of marine mammals

Culture of the sea bass Lates calcarifer

Studies on the growth of Lates calcarifer cultured in coastal ponds and net cages in the three different places at Tuticorin showed an increase of 16.2-23.2 mm/ 18.6- 53.2 g/ month at Karapad, 21.1-29.8mm/19.3- 36.3 g / month at Veppalodai in coastal ponds and 21.6-32.4 mm/ 31.4-55.0 g / month in a net cage in the Tuticorin Bay. The growth in Karapad pond, where supplementary feed was provided was better than in Veppalodai pond. The highest growth rate was obtained in net cage culture at Tuticorin Bay. Length-frequency analysis of samples from commercial catch reveal a faster growth in the wild than in the culture systems. The better growth in the brackishwater culture and in the wild is attributed to the lower salinity and better live feed availability in brackishwater. In the pond system, the growth can be improved by maintaining proper water exchange so as to maintain the salinity equivalent to open sea/bay/ brackishwaters and by providing supplementary feed

Trends in secondary production in the inshore waters of the seas around India

CMFRI has been monitoring the microscopic organisms which belong to the categories of phyto and zooplanktons, being a reliable tool for the identification of areas prone to industrial and natural pollution and for understanding its extent and intensity, especially in the inshore areas selected centres along the Indian coasts.These studies assist in foretelling any alarming situations developed in the living environment that may affect the commercially important resources adversely. The pattern of the occurrence and abundance of zooplankton along the Indian coasts from Bombay on the west coast upto Madras on the east coast were described.The samples were collected from Bombay, Karwar, Calicut, Vizhinjam, Tuticorin, Mandapam and Madras. In conclusion,the rate of secondary production on the west as well as on the east coasts during the 1981-82 period was comparatively lesser than during the previous year

Distribution of finfish resources along southeast coast of India in relation to certain environmental parameters

This paper embodies the distribution pattern of major finfish resources along the southeast coast of India as observed during the cruises operated by FORV Sagar Sampada. A total of 16 cruises (1985-90) operated along latitude 7° 15'- 15°00' N and longitude 75°50'- 82°3r E hauled a total catch 37.5 tonnes with a catch rate of 537 kg/hr. The catch was constituted mainly by threadfin breams (43%), perches (14%), barracudas (9.72%), carangids (8.56%) and elasmobranchs (4.81%). Seasonally higher catch rates were obtained during July- September period. Depth range of 60 - 80 m had denser population of finfish resources. Water temperature and salinity appeared to influence the distribution of major finfishes more than dissolved oxygen. Groups such as threadfin breams were found preferring cooler waters of Wadge Bank area, while barracudas appear to occupy warmer waters of Gulf of Mannar

Major and minor fisheries harbours of India. 6. The fisheries harbour and fishery at Tuticorin

The Tuticorin Fisheries Harbour Is one of the old and important fishery ports of India located on the southern Tamil Nadu coast and on the western side of the Gulf of Mannar. Now owing to its commercial and economic importance from the marine fisheries point of view it is considered as one of the major fisheries harbours on the east coast of India. The harbour was constructed at a cost of Rs. 2.1 crore in 1968 in a total area of 17 acres, out of which the berthing area is 2.7 acres. This harbour has a berthing facility to accommodate 450 medium sized mechanised wooden trawlers. The total length of the jetty is 800 m and the depth in the area of berthing is 3m