Mussel culture experiments in Ennore estuary, Chennai

The present paper gives a detailed account on experiments of mussel culture carried out by the Institute in 1996 in association with fishermen of Ennore in an estuarine environment by adopting the long-line and rack culture methods

On a Burmese fishing raft drifted to Madras

The article describes about the Burmese fishing raft with fishermen drifted to Madras accidentaly during 1987. Similar incidents were also noticed during 1986 and 1988

Towards Provably-Secure Analog and Mixed-Signal Locking Against Overproduction

Similar to digital circuits, analog and mixed-signal (AMS) circuits are also susceptible to supply-chain attacks such as piracy, overproduction, and Trojan insertion. However, unlike digital circuits, supply-chain security of AMS circuits is less explored. In this work, we propose to perform “logic locking” on digital section of the AMS circuits. The idea is to make the analog design intentionally suffer from the effects of process variations, which impede the operation of the circuit. Only on applying the correct key, the effect of process variations are mitigated, and the analog circuit performs as desired. We provide the theoretical guarantees of the security of the circuit, and along with simulation results for the band-pass filter, low-noise amplifier, and low-dropout regulator, we also show experimental results of our technique on a band-pass filter

Environmental impact assessment in the shrimp farming areas of Nagapattinam Quaid-E-Milleth district, Tamil Nadu

To assess the effects of shrimp farming on the environment and on the coastal population, a study was undertaken by a team of scientific and technical staff of CMFRl in Nagapattinam Quaid-e-Milleth district, Tamil Nadu in September, 1995. Several small and large farms and corporate farms in nine coastal places, where a number of farms are located were covered in the study. With the help of the mobile laboratory of the CMFR Institute, the team collected and aneilysed soil, water and plankton samples in the inlet and outlet of the farm areas, shrimp ponds and from the wells of the nearby villages. Estimations on hydrological parameters, nutrients and total and differential counts of bacteria in the water and soil samples were made following standard procedures

Privatising electric power in Malaysia and Thailand: Politics and infrastructure development policy

Electric power development in Asia until recently has been a monopoly of the state, with the power sector\u27s planning, finance, construction and management being a part of government activity. The surge in demand for power, as well as external pressures, induced Asian governments to allow private sector participation in electric power. The Malaysian and Thailand cases represent different patterns of policy-making regarding privatisation. In Malaysia, the government divested Tenaga Nacional Berhad in 1992 and awarded independent power producers (IPPs) licenses to build and sell electricity to Tenaga for transmission and distribution. The IPPs were awarded without tender to friends of the government and the system has enabled the IPPs to make large profits at Tenaga\u27s expense. In the Thai case, privatisation has been a very slow process as successive governments since 1989 have not had the power to initiate extensive divestment of IPP contracting. Privatisation in Thailand is a very contentious political issue and the employees union of the Electricity Generating Authority of Thailand (Egat) is very powerful. Thus, while Malaysia has had extensive privatisation of the power sector, the system eliminates competition in power supply resulting in a higher price of electricity for consumers. © 2003 John Wiley and Sons, Ltd

Assessment of certain Anthropogenic Interventions and their Impacts along the Indian Coastline

Coastal anthropogenic activities such as sand mining, disposal of untreated or partially treated sewage and industrial effluents from selected centres along Indian coastline and their possible impacts impairing the coastal environment are discussed with the data collected for two year period from eight maritime states of India. Destruction of macro benthos due to large scale sand mining along the Malabar coast was estimated to show an average of 2760 m-2 day-1 equivalent to 10.42 g m-2 day-1 (wet weight) registering maximum during the post monsoon season. Non biodegradable objects such as polythene carry bags, ropes and sachets were recovered in considerable quantities from the beaches (0.145-9.8 g m-2) as well as from the fishing grounds (32-85 g haul-1). The domestic sewage disposed to Visakhapatnam inshore area registered appreciable density of toxic algal species such as Gonyalux fragilis, Peridnium depressum and Porocentrum gracile. Annual average of mercury in soft tissues of crab Portunus sanguinolentus was found in very high levels from Veraval (2.90 ppm) followed by Tuticorin (2.39 ppm), Visakhapatnam (1.83 ppm) and Cochin (1.77 ppm). However, arsenic levels were very high in all the tissue samples collected from Tuticorin, Mandapam, Chennai and Visakhapatnam

International Review and Advisory Committee

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