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| 1 | Optimal machining conditions for turning Ti-6Al-4V using response surface methodology显示文摘Machining titanium is one of ever-increasing magnitude problems due to its characteristics such as low thermal conductivity,modulus of elasticity and work hardening.The efficient titanium alloy machining involves a proper selection of process parameters to minimize the tangential force(F_z) and surface roughness(R_a).In the present work,the performance of PVD/TiAIN coated carbide inserts was investigated using response surface methodology(RSM) for turning Ti-6A1-4V.The effects of process parameters such as speed(v),feed(f),depth of cut(d) and back rake angle(γ_y) on F_z and R_a were investigated.The experimental plan used for four factors and three levels was designed based on face centered,central composite design(CCD).The experimental results indicated that F_z increased with the increase in d,f and decreased with the increase in v and γ_y,whereas R_a decreased with the increase in v and γ_y,and increased with d and v.The goodness of fit of the regression equations and model fits(R^2) for F_z and R_a were found to be 0.968and 0.970,which demonstrated that it was an effective model.A confirmation test was also conducted in order to verify the correctness of the model. | Satyanarayana Kosaraju Venu Gopal Anne | 2013 | Advances in Manufacturing2013，1，4： | 2 |
| 2 | Catalytic oxidation of dimethyl sulfide with ozone : Effects of promoter and physico - chem- ical properties of metal oxide catalysts 显示文摘 | Venu Gopal Devulapelli Endalkachew Sahle Demessie | 2008 | Applied Catalysis A - General2008，348，： | 1 |
| 3 | Application of Electromechanical Impedance Technique for Engineering Struc- tures:Review and Future Issues 显示文摘 | Venu Gopal Madhav Annamdas Chee Kiong Soh | 2010 | Journal of Intelligent Materi- al Systems and Structures2010，，21： | 1 |
| 4 | Selection of optimum conditions for maximum material removal rate with surface finish and damage as constraints in SiC grinding 显示文摘 | GOPAL Anne Venu VENKATESARA RAO P | 2003 | International Journal of Machine Tools & Manufacture2003，43，： | 1 |
| 5 | Selection of optimum conditions for maximum material removal rate with surface finish and damage as constraints in SiC grinding 显示文摘 | Anne Venu Gopal P Venkateswara Rao | 2003 | International Journal of Machine Tools & Manufacture2003，43，： | 1 |
| 6 | Modification of the spontaneous emission of quantum dots near the surface of a three-dimensional colloidal photonic crystal显示文摘This paper demonstrates experimentally and numerically that a significant modification of spontaneous emission rate can be achieved near the surface of a three-dimensional photonic crystal.In experiments,semiconductor core-shell quantum dots are intentionally confined in a thin polymer film on which a three-dimensional colloidal photonic crystal is fabricated.The spontaneous emission rate of quantum dots is characterised by conventional and time-resolved photoluminescence (PL) measurements.The modification of the spontaneous emission rate,which is reflected in the change of spectral shape and PL lifetime,is clearly observed.While an obvious increase in the PL lifetime is found at most wavelengths in the band gap,a significant reduction in the PL lifetime by one order of magnitude is observed at the short-wavelength band edge.Numerical simulation reveals a periodic modulation of spontaneous emission rate with decreasing modulation strength when an emitter is moved away from the surface of the photonic crystal.It is supported by the fact that the modification of spontaneous emission rate is not pronounced for quantum dots distributed in a thick polymer film where both enhancement and suppression are present simultaneously.This finding provides a simple and effective way for improving the performance of light emitting devices. | 刘正奇 冯天华 戴峭峰 吴立军 兰胜 丁才蓉 汪河洲 Gopal Achanta Venu | 2010 | Chinese Physics B2010，19，11： | 1 |
| 7 | Review on developments in fiber optical sensors and applications 显示文摘 | Venu Gopal Madhav Annamdas | 2011 | International Journal of Materials Engineering2011，1，1： | 1 |
| 8 | Sodium glucose cotransporter-2 inhibitors: Are we targeting old devil with new problems?显示文摘Dear editor,The advent of modern molecular mechanism’s approach to disease treatment is highly advancing to mitigate/normalize the symptoms of disease i.e.hyperglycemia by targeting at least eight different pathophysiological approaches popularly known as omnious octet[1].Importantly,type 2 diabetes is a | Venu Gopal Jonnalagadda Kanchan Choudhary Vijay Kranti Matety | 2017 | Asian Pacific Journal of Tropical Biomedicine2017，7，11： | 1 |
| 9 | Performance improvement of grinding of SiC using graphite as a solid lubricant显示文摘 | Venu Gopal A Venkateswara Rao P | 2004 | Materials and Manufacturing Processes2004，19，2： | 1 |
| 10 | Utility of repetitive transcranial magnetic stimulation as anaugmenting treatment method in treatment - resistant depression显示文摘 | Venu Gopal Jhanwar Ram Jeevan Bishnoi Lakshman Singh etal | 2011 | Indian J Psychiatry2011，53，2： | 1 |
| 11 | Vapor-phase alkylation of indole with methanol over zeolites显示文摘 | Gopal Venu D Srinivas B Durgakumari etc | 2002 | Applied Catalysis A: General2002，，224： | 1 |
| 12 | Socioeconomic status, scheduled caste and creativity显示文摘 | Venu Gopal Rao T Satyapal D | 2011 | International Journal of Transformations in Business Management2011，1，4： | 1 |
| 13 | Geometric grid network and third-order compact scheme for solving nonlinear variable coefficients 3D elliptic PDEs显示文摘By using nonuniform(geometric)grid network,a new high-order finite-difference compact scheme has been obtained for the numerical solution of three-space dimensions partial differential equations of elliptic type.Single cell discretization to the elliptic equation makes it easier to compute and exhibit stability of the numerical solutions.The monotone and irreducible property of the Jacobian matrix to the system of difference equations analyses the converging behavior of the numerical solution values.As an experiment,applications of the compact scheme to Schr¨odinger equations,sine-Gordon equations,elliptic Allen–Cahn equation and Poisson’s equation have been presented with root mean squared errors of exact and approximate solution values.The results corroborate the reliability and efficiency of the scheme. | Navnit Jha Venu Gopal Bhagat Singh | 2018 | International Journal of Modeling, Simulation, and Scientific Computing2018，9，6： | 0 |
| 14 | Response of colloidal liquids containing magnetic holes of different volume densities to magnetic field characterized by transmission measurement显示文摘This paper systematically investigates the response of colloidal liquids containing magnetic holes of different volume densities to magnetic field by conventional transmission measurements. It finds that the enhancement in the transmission of such a colloidal liquid under a magnetic field exhibits a strong dependence on the volume density of magnetic holes. A linear increase in the maximum enhancement factor is observed when the volume density of magnetic holes is below a critical level at which a maximum enhancement factor of ~150 is achieved in the near infrared region. Once the volume density of magnetic holes exceeds the critical level, a sharp drop of the maximum enhancement factor to ~2 is observed. After that, the maximum enhancement factor increases gradually till a large volume density of ~9%. By monitoring the arrangement of magnetic holes under a magnetic field, it reveals that the colloidal liquids can be classified into three different phases, i.e., the gas-like, liquid-like and solid-like phases, depending on the volume density of magnetic holes. The response behaviour of colloidal liquids to magnetic field is determined by the interaction between magnetic holes which is governed mainly by their volume density. A phase transition, which is manifested in the dramatic reduction in the maximum enhancement factor, is clearly observed between the liquid-like and solid-like phases. The optical switching operations for colloidal liquids in different phases are compared and the underlying physical mechanisms are discussed. | 邓海东 孙婷 赵韦人 符志成 戴峭峰 吴立军 兰胜 Achanta Venu Gopal | 2010 | Chinese Physics B2010，19，10： | 0 |
| 15 | HIGH ACCURACY ARITHMETIC AVERAGE TYPE DISCRETIZATION FOR THE SOLUTION OF TWO-SPACE DIMENSIONAL NONLINEAR WAVE EQUATIONS显示文摘In this paper,we propose a new high accuracy discretization based on the ideas given by Chawla and Shivakumar for the solution of two-space dimensional nonlinear hyper-bolic partial differential equation of the form utt=A(x,y,t)uxx+B(x,y,t)uyy+g(x,y,t,u,ux,uy,ut),00 subject to appropriate initial and Dirichlet boundary conditions.We use only five evaluations of the function g and do not require any fictitious points to discretize the differential equation.The proposed method is directly applicable to wave equation in polar coordinates and when applied to a linear telegraphic hyperbolic equation is shown to be unconditionally stable.Numerical results are provided to illustrate the usefulness of the proposed method. | R.K.MOHANTY VENU GOPAL | 2012 | International Journal of Modeling, Simulation, and Scientific Computing2012，3，2： | 0 |
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