|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Property mapping of polycrystalline diamond coatings over large area显示文摘Large-area polycrystalline diamond(PCD)coatings are important for fields such as thermal management,optical windows,tribological moving mechanical assemblies,harsh chemical environments,biological sensors,etc.Microwave plasma chemical vapor deposition(MPCVD)is a standard technique to grow high-quality PCD films over large area due to the absence of contact between the reactive species and the filament or the chamber wall.However,the existence of temperature gradients during growth may compromise the desired uniformity of the final diamond coatings.In the present work,a thick PCD coating was deposited on a 100-mm silicon substrate inside a 915-MHz reactor;the temperature gradient resulted in a non-uniform diamond coating.An attempt was made to relate the local temperature variation during deposition and the different properties of the final coating.It was found that there was large instability inside the system,in terms of substrate temperature(as high asΔT=212℃),that resulted in a large dispersion of the diamond coating’s final properties:residual stress(-15.8 GPa to+6.2 GPa),surface morphology(octahedral pyramids with(111)planes to cubo-octahedrals with(100)flat top surfaces),thickness(190μm to 245μm),columnar growth of diamond(with appearance of variety of nanostructures),nucleation side hardness(17 GPa to 48 GPa),quality(Raman peak FWHM varying from 5.1 cm^(-1) to 12.4 cm^(-1) with occasional splitting).This random variation in properties over large-area PCD coating may hamper reproducible diamond growth for any meaningful technological application. | Awadesh Kumar MALLIK Sandip BYSAKH Monjoy SREEMANY Sudakshina ROY Jiten GHOSH Soumyendu ROY Joana Catarina MENDES Jose GRACIO Someswar DATTA | 2014 | Journal of Advanced Ceramics2014，3，1： | 4 |
| 2 | An improved robust stability analysis for systems with two delays by extracting overlapping feature显示文摘In this paper,a delay-dependent robust stability criterion is proposed for linear systems with two delays.For delay-dependent stable systems,the delays are very small in nature.So,they may overlap each other.This overlapping information may be exploited to obtain a less conservative criterion.To extract such information,a special type of simple Lyapunov–Krasovskii functional is considered.To derive the criterion in form of Linear Matrix inequalities,a matrix variable approach is used.Some numerical examples are presented to validate the less conservativeness of the proposed criterion. | Dushmanta K.Das Sandip Ghosh Bidyadhar Subudhi | 2015 | Journal of Control and Decision2015，2，2： | 3 |
| 3 | Unified Smith Predictor Based H_∞ Wide-Area Damping Controller to Improve the Control Resiliency to Communication Failure显示文摘Inter-area low frequency oscillation in power system is one of the major problems for bulk power transmission through weak tie lines.Use of wide-area signal is more effective than the local area signal in damping out the inter-area oscillations.Wide area measurement system(WAMS)is convenient to transmit the wide area signal through the communication channel to the remote location.Communication failure is one of the disastrous phenomena in a communication channel.In this paper,a dual input single output(DISO)Hm controller is designed to build the control resiliency by employing two highest observability ranking wide area signals with respect to the critical damping inter-area mode.The proposed controller can provide sufficient damping to the system and also the system remains stabilized if one of the wide-area signals is lost.The time delay is an unwanted phenomenon that degrades the performance of the controllers.The unified Smith predictor approach is used to design a Hm controller to handle the time delay.Kundur's two-area and IEEE-39 bus test systems are considered to verify the effectiveness of the proposed controller.From the simulation results,it is verified that,the proposed controller provides excellent damping performance at normal communication and improves the controller resiliency to counteract the communication failure. | Mithu Sarkar Bidyadhar Subudhi Sandip Ghosh | 2020 | IEEE/CAA Journal of Automatica Sinica2020，7，2： | 2 |
| 4 | Genetic variations at microRNA and processing genes and risk of oral cancer显示文摘 | Roshni Roy Navonil Sarkar Sandip Ghose Ranjan R. Paul Mousumi Pal Chandrika Bhattacharya Shweta K Roy Chowdhury Saurabh Ghosh Bidyut Roy | 2014 | Tumor Biology2014，，4： | 1 |
| 5 | Failure of a super heater tube 显示文摘 | Das Goutam Chowdhury Sandip Ghosh | 2002 | Engineering Failure Analysis2002，9，5： | 1 |
| 6 | A theory of 'fuzzy' edge detection in the light of human visual system 显示文摘 | Ghosh Kuntal Sarkar Sandip Bhaumik Kamales | 2008 | Journal of Intelligent Systems2008，17，1： | 1 |
| 7 | A theory of 'fuzzy' edge detection in the light of human visual system显示文摘 | Ghosh Kuntal Sarkar Sandip Bhaumik Kamales | 2008 | Journal of Intelligent Systems2008，17，1： | 1 |
| 8 | A theory of ' fuzzy' edge detection in the light of human visual system 显示文摘 | Ghosh Kuntal Sarkar Sandip Bhanmik Kamales | 2008 | Journal of Intelligent Systems2008，17，1： | 1 |
| 9 | A theory of 'fuzzy' edge detection in the light of human visual system 显示文摘 | Ghosh Kuntal Sarkar Sandip Bhaumik Kamales | 2008 | Journal of Intelligent Systems2008，17，1： | 1 |
| 10 | A theory of ' fuzzy' edge detection in the light of human visual system 显示文摘 | Ghosh Kuntal Sarkar Sandip Bhaumik Kamales | 2008 | Journal of Intelligent Systems2008，17，1： | 1 |
| 11 | Cold rolling behaviour and textural evolution in AISI 316L austenitic stainless steel显示文摘 | Sandip Ghosh Chowdhury Samar Das P.K. De | 2005 | Acta Materialia2005，，14： | 1 |
| 12 | Failure of a superheater tube显示文摘 | Goutam Das Sandip Ghosh Chowdhury Ashok Kumar Ray | | 0，，： | 1 |
| 13 | Evolution of texture during accumulative roll bonding (ARB) and its comparison with normal cold rolled alumi- num-manganese alloy 显示文摘 | Sandip Ghosh Chowdhury Srivastava V C Ravikumar B | 2006 | Scripta Mater2006，54，9： | 1 |
| 14 | Edge - emission electroluminescence study of as -grown vertical -cavity surface -emitting laser structures显示文摘 | Sandip Ghosh Stephanie Constant Thomas J C Hosea | 2000 | J Appl Phys2000，88，： | 1 |
| 15 | Turbine blade failure in a thermal power plant显示文摘 | Goutam Das Sandip Ghosh Chowdhury S G | 2003 | Engineering Failure Analysis2003，，10： | 1 |
| 16 | A theory of'filzzy'edge detection in the light of human visual system 显示文摘 | Ghosh Kuntal Sarkar Sandip Bhaumik Kamales | 2008 | Journal of Intelligent Systems2008，17，1： | 1 |
| 17 | Evolution of texture during accumulative roll bonding (ARB) and its comparison with normal cold rolled alumi- nium-manganese alloy显示文摘 | Sandip Ghosh Chowdhury Srivastava V C Ravikumar B | 2006 | Scripta Mater2006，54，9： | 1 |
| 18 | A theory of ' fuzzy' edge detection in the light of human visual system 显示文摘 | Ghosh Kuntal Sarkar Sandip Bhaumik Kamales | 2008 | Journal of Intelligent Systems2008，17，1： | 1 |
| 19 | Cold Roiling Behaviour and Textural Evolution in AISI 316L 显示文摘 | Sandip Ghosh Chowdhury Samar Das De P K | 2005 | Acta Mater2005，53，： | 1 |
| 20 | A theory of ”fuzzy” edge detection in the light of human visual system 显示文摘 | Ghosh Kuntal Sarkar Sandip Bhaumik Kamales | 2008 | Journal of Intelligent Systems2008，17，1： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员