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| 1 | Adaptive integral higher order sliding mode controller for uncertain systems显示文摘This paper proposes an adaptive integral higher order sliding mode (HOSM) controller for uncertain systems. Instead of a regular control input, the derivative of the control input is used in the proposed control law. The discontinuous sign function in the controller is made to act on the time derivative of the control input. The actual control signal obtained by integrating the derivative control signal is smooth and chattering free. The adaptive tuning law used in the proposed controller eliminates the need of prior knowledge about the upper bound of the system uncertainties. Stability and robustness of the proposed controller are proved by using the classical Lyapunov criterion. Simulation results demonstrate the advantages of the proposed control scheme. | Sanjoy MONDAL Chitralekha MAHANTA | 2013 | 控制理论与应用(英文版)2013，11，1： | 3 |
| 2 | A Position Synchronization Controller for Co-ordinated Links(COOL)Dual Robot Arm Based on Integral Sliding Mode:Design and Experimental Validation显示文摘In this study,a simple position synchronization control algorithm based on an integral sliding mode is developed for dualarm robotic manipulator systems.A first-order sliding surface is designed using cross-coupling error in order to ensure position synchronization of dual-arm manipulators.The design objective of the proposed controller is to ensure stability as well as to synchronize the movement of both arms while maintaining the trajectory as desired.The integral sliding mode eliminates the reaching phase and guarantees robustness throughout the whole operating period.Additionally,a low pass filter is used to smoothen the discontinuous element and minimize unwanted chattering.Lyapunov stability theory is utilized to prove the asymptotic stability of the controlled system.Simulation studies are performed to validate the proposed controller′s effectiveness.Also,to investigate the possibility of realizing the proposed dynamic control method in practical applications,experiments are conducted on a 14DoF coordinated links(COOL)dual-arm robotic manipulator system.Experimental evidence indicates adequate efficiency in trajectory tracking and guarantees robustness in the presence of parametric uncertainty and external disturbance. | Sumi Phukan Chitralekha Mahanta | 2021 | International Journal of Automation and computing2021，18，1： | 2 |
| 3 | Fly ash supported calcium oxide as recyelable solid base catalyst for knoevenagel condensation reaction 显示文摘 | Deepti Join Chitralekha Khatri Ashu Rani | 2010 | Fuel Processing Technology2010，91，： | 1 |
| 4 | Formation of metastable pi-phase in mechanically alloyed tellurium-rich Ag-Te alloys显示文摘 | Raviprasad K Gopal E S R Chattopadhydy K | 1995 | J Mater Resea1995，10，8： | 1 |
| 5 | Detection and quantification of valve stiction by the method of unknown input estimation 显示文摘 | Chitralekha S B Shah S L Parkash J | 2010 | Journal of Process Control2010，20，2： | 1 |
| 6 | Synthesis of a nano-crystal- line solid acid catalyst from fly ash and its catalytic performance 显示文摘 | Chitralekha Khatri Ashu Rani | 2008 | Fuel2008，87，1314： | 1 |
| 7 | Fly ash supported calcium oxide as recyclable solid base catalyst for Knoevenagel condensation reaction 显示文摘 | Deepti J Chitralekha K Ashu R | 2010 | Fuel Processing Technology2010，91，9： | 1 |
| 8 | Prevalence of rotavirus diarrhea among hospitalized under-five children显示文摘 | Mathew MA Paulose Abraham Chitralekha S | 2014 | Indian Pediatr2014，51，1： | 1 |
| 9 | Development of suitable photobioreactors for CO 2 sequestration addressing global warming using green algae and cyanobacteria显示文摘 | Kanhaiya Kumar Chitralekha Nag Dasgupta Bikram Nayak Peter Lindblad Debabrata Das | 2011 | Bioresource Technology2011，，8： | 1 |
| 10 | Detection and quantification of valve stiction by the method of un- known input estimation 显示文摘 | Chitralekha S B Shah S L Prakash J | 2010 | Journal of Process Con- trol2010，20，2： | 1 |
| 11 | Comparing modified and plain pep tide linked enzyme immunosorbent assay ( ELISA) for detec-tion of human immunodeficiency virus type-1 (HIV-1 ) and type-2 ( HIV-2) antibodies 显示文摘 | Manocha M Chitralekha K T Thakar M | 2003 | Immunol Lett2003，85，3： | 1 |
| 12 | Auto-tuning of FOPI Controllers for TITO Processes with Experimental Validation显示文摘In this paper, the auto-tuning of a fractional order proportional and integral(FOPI) controller is proposed and experimentally validated for two-input two-output(TITO) processes. The proposed method first identifies an unknown TITO plant into fractional order TITO model with time delay. Furthermore, decoupling the TITO process into two fractional order single-input single-output(SISO) transfer function models makes it easier for designing the decentralized FOPI controllers. The proposed control method is a generalization of both integer order and fractional order TITO systems depending on the value of the order of the model. One advantage of this method is the non-requirement of a-priori information of gain and phase crossover frequencies of the system while tuning the controllers. The proposed algorithm is validated both by simulation of a class of TITO process models as well as by experimental analysis of a coupled tank system(CTS). | Gargi Baruah Somanath Majhi Chitralekha Mahanta | 2019 | International Journal of Automation and computing2019，16，5： | 1 |
| 13 | Regeneration of plants from long-term root culture of lime, Citrus aurantifolia (Christm) Swing 显示文摘 | BHAT S R CHITRALEKHA P CHANDEL K P S | 1992 | Plant Cell Tiss Organ Cult1992，29，： | 1 |
| 14 | Optimal second order sliding mode control for nonlinear uncertain systems显示文摘 | Madhulika Das Chitralekha Mahanta | 2014 | ISA Transactions2014，，： | 1 |
| 15 | Molybdenum stress-induced changes in growth and yield of chickpea显示文摘 | NIRMALA N CHITRALEKHA C | 2004 | Journal of Plant Nutrition2004，27，1： | 1 |
| 16 | 查看详情显示文摘 | Chitralekha Khatri Ashu Rani | | 0，，13： | 1 |
| 17 | Enhanced mucosal and systemic immune response with intranasal immunization of mice with HIV peptides entrapped in PLG microparticles in combination with Ulex Europaeus-I lectin as M cell target显示文摘 | Pal PC Chitralekha KT | 2005 | Vaccine2005，23，4849： | 1 |
| 18 | Sugarcane yield and physiology in response to molybdenum supply 显示文摘 | Chitralekha C Nirmala N | 1999 | Sugar Cane1999，，3： | 1 |
| 19 | Infuence of changes in manganese and magnesium supply on some aspects of wheat physiology显示文摘 | Chitralekha Chatterjee Nirmala Nautiyal | 1994 | Soil Sci Plant Nutr1994，40，2： | 1 |
| 20 | Design of FOPI Controller for Time Delay Systems and Its Experimental Validation显示文摘In this paper,we report on the identification and modeling of unknown and higher order processes into first order plus dead time(FOPDT)plants based on the limit cycle information obtained from a single relay feedback test with an online fractional order proportional integral(FOPI)controller.The parameters of the test processes are accurately determined by the state space method while the FOPI controller settings are re-tuned to achieve enhanced performance based on the identified model parameters based on the balancedtuning method.A new performance index,integral time fractional order absolute error(ITFIAE)is introduced in this paper for balanced tuning of fractional order(FO)controllers.It requires minimum design specifications without a-priori knowledge of gain and phase crossover frequencies and is done non-iteratively without disrupting the closed loop.Four test processes and experimental analysis on a coupled tank system(CTS)validate the theory proposed. | Gargi Baruah Somanath Majhi Chitralekha Mahanta | 2019 | International Journal of Automation and computing2019，16，3： | 1 |
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