Heavy landings of catfishes and sciaenids by trawl nets at Bhairavapalem

On 27-3-2004,114 trawl units operating at Bhairavapalem landed a bumpercatch of 138 tonnes of fishes out of which 42 tonnes were sciaenids and 20 tonnes were Arius tenuispinis

A population balance model for flocculation of colloidal suspensions by polymer bridging

A detailed population balance model for flocculation of colloidal suspensions by polymer bridging under quiescent flow conditions is presented. The collision efficiency factor is estimated as a function of interaction forces between polymer coated particles. The total interaction energy is computed as a sum of van der Waals attraction, electrical double layer repulsion and bridging attraction or steric repulsion due to adsorbed polymer. The scaling theory is used to compute the forces due to adsorbed polymer and the van der Waals attraction is modified to account for presence of polymer layer around a particle. The irregular structure of flocs is taken into account by incorporating the mass fractal dimension of flocs. When tested with experimental floc size distribution data published in the literature, the model predicts the experimental behavior adequately. This is the first attempt towards incorporating theories of polymer-induced surface forces into a flocculation model, and as such the model presented here is more general than those proposed previously

Introduction of fibre glass "Teppa" as a possible substitute for catamaran for fishing in the inshore waters of Andhra Pradesh

Catamaran is made of 2-3 light weight wooden logs tied together and is generally operated manually by one person for fishing in the near shore waters using cast net, gill net, and occasionally hooks and line. Recently Teppa made of fiberglass having facility to use outboard motor has been introduced to over come the difficulties of catamarans. Monitoring of the operation of these crafts is being continued to understand the efficiency of this gear over the wooden catamaran

Monodromy of Cyclic Coverings of the Projective Line

We show that the image of the pure braid group under the monodromy action on the homology of a cyclic covering of degree d of the projective line is an arithmetic group provided the number of branch points is sufficiently large compared to the degree.Comment: 47 pages (to appear in Inventiones Mathematicae

On the capture of a bottle nose dolphin off Kakinada

A female bottlenose dolphin, Tursiops truncatus having a total length of 245 cm was caught on 7-7-'97 by a motorised gill net unit operated off Kakinada at a depth of 30 m. The dolphin fetched a price of Rs.800/- as there was great demand for its flesh for use as bait in the hooks and line fishery for sharks and tuna

Evaluation of molecular diversity of ex situ conserved germplasm of palmyrah (Borassus flabellifer L.) accessions using RAPD markers

The genetic relationship of 96 palmyrah palms, consisting of 24 indigenous accessions from Tamil Nadu and Andhra Pradesh, was investigated using Random Amplified Polymorphic DNA (RAPD) markers. Hundred and eighty primers were used initially to identify the polymorphic primers in six random samples and 10 polymorphic primers were selected to amplify the 96 palms. These 10 primers produced a total of 112 reproducible bands and out of them, 41 fragments (36.6 %) showed polymorphism.  The number of bands produced with each primer varied from seven to 15 with an average of 11.2 bands per primer.  The percent polymorphism ranged from 7.7 to 71.4 with an average of 37.4 per cent when all the primers were taken collectively.  UPGMA grouped all the accessions into two major clusters at 0.85 similarity value. The highest similarity value (0.96) was observed between the accessions KLKM-8 and THY-54 and the lowest similarity value (0.782) was obtained between ANBI-17 and RCML-11. The relatively low polymorphism suggests a narrow genetic diversity of palmyrah populations from which the present accessions have been derived and maintained over the years

MOBILE ROBOT SELF-PLANNING AND NAVIGATION BASED ON ARTIFICIAL LANDMARK LOCALIZATION METHOD AND BINOCULAR STEREO VISION

This paper describes design of artificial landmark based on colour model used for Self-planning in unstructured environment to a robot for its movement. This method provides less error in estimation when compared to existing methods. This project is an investigation into building a system which visually detects artificial landmarks to determine the landmarks within a location, decipher their position within that location and track the landmark throughout the location using Binocular stereo vision

Impact of recent cyclone on the marine fishery sector along the east Godavari and Visakhapatnam districts of Andhra Pradesh

A cyclone which lashed along the coastal Andhra Pradesh on the night of 6-11-'96 resulted in the loss of thousands of human lives and materials. The coast of East Godavari and parts of Visakhapatnam districts were the worst hit areas with high velocity winds bringing in huge tidal waves which inundated the fish landing centres

On the landing of bottlenose dolphin Tursiops truncatus at Kakinada

On 28-04-1993, a dolphin measuring 225 cm in total length and weighing 160 kg was landed at Kakinada Fisheries Harbour, about 30 km north east of Kakinada

Spontaneous Assessment Packet Origination

Nowadays systems aren't getting any slighter, they are expanding in size and it's transforming into a monotonous employment for system chairmen to adjust the system since they put trust in conventional instruments like ping and follow course for this work. Our paper tosses a development chronic and precise way to deal with test and right a system alluded to as Automatic check Packet Generation (ATPG). ATPG produces a model that isn't dependent on strategy once perusing course of action from switches. The model is utilized to get least mixed bag of check parcels to shroud every connection amid a system and each statute net. ATPG is skillful of work. Each down to earth and execution issues check parcels are sent at standard interims and separate strategy is utilized to limit issues. The working of few disconnected from the net instruments that mechanically produce check parcels too are given. On the other hand, ATPG goes on the far side and sooner the work in static (Checking aliveness and shortcoming limitation). Systems is created numerous mind boggling heads devices in the season of troubleshoot issues We propose the computerized and delivers 0rinted testing and investigating systems called "Unmanned Quality Container Prompting peruses switch setups and produces little devises show This model is utilized to produce a base arrangement of test compartment to practice each connection in the system changes each principle in the system model Test holder are sent to information and identified mistakes a different models to limit the issue ATPG can distinguish both utilitarian and execution issues supplements yet goes past prior work in static confirm shortcoming environment We take our convention usage and results it distinctive applications Stanford University's spine system and Internet2 We observe that a little number of test holder everyone to test all guidelines in diverse systems model