41 research outputs found
Decoupled and semi-decoupled bands in Hg 197 and Hg 199
The structure of decoupled positive-parity and semidecoupled negative-parity bands up to high spin in Hg197,199 has been studied using multinucleon transfer reactions with the Gammasphere array. A positive-parity band in Hg199 with the (νi13/2)3 decoupled configuration that deexcites to levels in the negative-parity sequences is newly established. The semidecoupled sequences in both isotopes are extended to higher spin. Rotation-aligned angular momenta and crossing frequencies determined from experiment are in fair agreement with those from cranking calculations. A transition from oblate collective rotation at low spin to triaxial noncollective shapes at high spin is indicated
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Not AvailableAge, growth and maturity data of the freshwater feather back Chitala chitala (Hamilton-Buchanan, 1822) were collected from ten different geographical locations. Out of ten populations, maximum 6+ ages were recorded from four river basins namely river Bhagirathi, Koshi, Saryu and Ganga and the back calculated lengths at 6+ ages ranged from 1033.36–1073.63 mm. In rest of the locations, however, only 3+ age classes were recorded. Specific rate of linear growth (Cl) and specific rate of weight increase (Cw) showed decreases except in two locations. The specific rate of linear growth (Cl) and the specific rate of weight increase (Cw) increased at 3+ age class in the river Bhagirathi. Among other growth parameters, three distinct life stages of C. chitala were observed based on analysis of growth constant data. Analysis of variance (ANOVA) of the back-calculated length data of 10 populations indicated a significant difference (p < 0.05). Out of ten populations studied, six showed significant variation of growth in 1+ age class and two showed significant variation in 2+ to 6+ age classes. Length-weight relationship of the species from all the population was calculated and the coefficient of correlation (r) was at the significant level where the value of ‘b’ was almost 3 for all the locations studied. Male C. chitala attained maturity earlier (2+ age) whereas females matured at age 3+. The percentages of mature individuals also varied between river basins. Based on this study strategies can be proposed for sustainable exploitation of the species from wild populations.Not Availabl
Prevalence And Awareness Of Hypertension In A closed Community Of North India Town
Research question: What is the prevalence and awareness of high blood pressure in a closed community of Shimla Town? Objective : To study the prevalence & awareness of hypertension in a closed community of North India Town. Design : Cross sectional study. Setting: 36 Institutions of Shimla town. Participants: 7630 employees (20-60 years) Study Variables: Age, sex, body mass index, physical activity Statistical Analysis: Standard deviation, chi square test Results: Prevalence of hypertension in closed community was founded to be 33.2%. The level of awareness in hypertensives was 12.32% in less than 35 years of age group; 22.43% in 35-49 years age group and rose to 27.09% in above 50. Only 307 were taking regular treatment
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Not AvailableThis is the first report on the successful larval rearing of captive bred population of Chitala chitala (Hamilton). C. chitala is one of the endangered fresh water fish species in India for which the development of controlled larval rearing procedures are needed for stock enhancement. Fifteen days old post-hatchlings were stocked for 28 d in a 30 L recirculatory tanks using eight different diets i.e. live feed (tubifex worms, chironomous larvae, zooplanktons,), dry feed (dry tubifex, spirulina, daphnia) and other non-conventional feed (fish eggs
and boiled egg-yolk). Fishes accepted all types of diets. The study revealed that specific growth rate (SGR) was higher in post-hatchlings fed on live tubifex worms (2.40± 0.72) followed by fish eggs (2.15± 0.71), dry tubifex (2.12±0.40), chironomous larvae (1.91± 0.44), spirulina (1.79±0.38), daphnia (1.42± 0.79) and planktons (1.37±0.77) whereas minimum SGR was recorded with boiled egg-yolk (0.63±0.5). A highly significant difference (pb0.01) in SGR was observed in fish fed on live feed (tubifex worms, chironomous larvae, planktons, spirulina), dry tubifex and fish eggs whereas for daphnia and boiled egg-yolk it was only significant (pb0.05). The final mean weight and weight gain showed highly significant difference (pb0.01) in live tubifex, zooplanktons, spirulina, chironomous larvae, dry tubifex and fish eggs, whereas daphnia and boiled egg-yolk fed larvae showed significant difference (pb0.05). Highest mean survival rate on day 28 was
observed in live tubifex worms (94%) and chironomous larvae (92%). The post-hatchlings reared with spirulina and daphnia showed same survival rate of 88% whereas the lowest mean survival of 66% was recorded in boiled egg-yolk. The experiments showed that captive bred post-hatchlings of C.chitala could be reared in experimental recirculatory system for attaining higher growth and survival during early life
stages. However, methods to improve the larval rearing have to be improved further for commercial farming of the species.Indian Council of Agricultural Research, New Delhi,NATP (National Agricultural Technology Project) and World Ban
PERFORMANCE EVALUATION OF A PASSENGER CAR FUELLEDWITH BLENDSOF JATROPAMETHYL ESTER/ETHYL ESTERWITH DIESEL
Recent concerns over the environment, increasing fuel prices and scarcity of its supply have
promoted the interest in the development of the alternative sources for petroleum fuels. Many
researchers have reported the use of vegetable oil ester as a fuel in diesel engine, thereby
achieving reduction in harmful exhaust emissions as well as a comparable engine performance
as that with diesel. However, study on chassis dynamometer and in the field related to fuel
economy, acceleration was undertaken in order to understand the impact of blending vegetable
oil esters with the diesel in vehicles.
This paper presents the result of the investigation carried out on a diesel passenger car on
chassis dynamometer using diesel, 10%, 20% and 30% blend of bio-diesel (JME) and (JEE)
fuels. The vehicle performance study have been carried out with the aim of obtaining
comparative measures of the constant speed fuel consumption, driving cycle fuel economy,
WOT Power, fuel consumption. The emission of the CO2 was also computed using the fuel
economy data on the above-mentioned fuels. The vehicle acceleration tests were also carried
out on actual road condition using global positioning systems (GPS) and the results for
maximum speed, time elapsed for a distance of the 1km and also the acceleration time for
reaching speeds of 0-60 km/hr and 0-90 km/hr are reported in the paper