Kuvempu University

About: Kuvempu University is a education organization based out in Shimoga, India. It is known for research contribution in the topics: Cyclic voltammetry & Carbon paste electrode. The organization has 1575 authors who have published 2210 publications receiving 39755 citations. The organization is also known as: KU.

In vitro cytotoxicity of caralluma species by mtt and trypan blue dye exclusion

Abstract: Caralluma species have been reported for various traditional claims; the scientific data for possible activities have not yet been studied thoroughly. However the toxicity of a plant has to be studied for further exploration of various biological activities. Extracts were studied for their toxicity by MTT and trypan blue dye exclusion models against a panel of cancer, normal origin cell lines and EAC cells. The extracts found to be moderately toxic and showed dose dependent response.

BEHAVIOUR SURVEILLANCE AND OXYGEN CONSUMPTION IN THE FRESHWATER FISH Labeo rohita (HAMILTON) EXPOSED TO SODIUM CYANIDE

Abstract: Sodium cyanide, is highly contaminating aquatic ecosystems as a toxic pollutant, was investigated in the present study for acute toxicity on freshwater fish Labeo rohita. The toxicity tests were conducted by static renewal bioassay method on the juveniles of fish was evaluated. The LC50 value of sodium cyanide to Labeo rohita was found out to be 320 µg l -1 . One third (106 µg l -1 ) and one fifth (64 µg l -1 ) of the LC50 value was selected for sublethal studies. Behavioural patterns and oxygen consumption were observed in both (1/3 rd and 1/5 th ) sublethal concentrations (1, 5, 10 and 15 days). Sodium cyanide is highly toxic to the animal tested. Fish behaved irregular, erratic, and dartic movements, by followed hyperexcitability, loss of balance, finally settles to the bottom of the test chamber. A decrease in oxygen consumption was observed in 1/3rd (11.62% and - 4.52%) and 1/5 th (9.11% and -2.82%) sublethal concentrations. Fish under sublethal concentration were found to be under stress but not fatal.

Radiative heat transfers of Carreau fluid flow over a stretching sheet with fluid particle suspension and temperature jump

Abstract: The current study is to deliberate the flow and heat transfer of a Carreau fluid over a stretching sheet with fluid particle suspension. The temperature jump is also taken into account. The standard nonlinear system is resolved numerically via Runge-Kutta based shooting scheme. Role of substantial parameters on flow fields as well as on the fiction factor and heat transportation rates are determined and conferred in depth through graphs. It’s found that the velocity profile decreases and temperature profile increases, with an increasing the values of Weissenberg parameter. Further, the higher thermal slip parameter reduces the thermal boundary layer thickness. The thermal boundary layer thickness of fluid and dust particles decreases with the rise in Prandtl number.

Dual solutions for stagnation-point flow and convective heat transfer of a Williamson nanofluid past a stretching/shrinking sheet

Abstract: In this paper, the problem of boundary layer stagnation-point flow and heat transfer of a Williamson nanofluid on a linear stretching/shrinking sheet with convective boundary condition is studied The effects of Brownian motion and thermophoresis are considered in the energy equation The governing partial differential equations are first transformed into set of ordinary differential equations, which are then solved numerically using Runge–Kutta–Felhberg fourth–fifth order method with Shooting technique The characteristics of the flow and heat transfer as well as skin friction and Nusselt number for various prevailing parameters are presented graphically and discussed in detail A comparison with the earlier reported results has been done and an excellent agreement is shown It is found that dual solutions exist for the shrinking sheet case Further, it is observed that the thermal boundary layer thickness increases with increase in Williamson parameter for both solutions