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MXene-based Elastomer Mimetic StretchableSensors: Design, properties, and Applications

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Nano-Micro Letters 2024年第7期16卷 295-342页

作者： poushali Das parham Khoshbakht Marvi Sayan Ganguly Xiaowu(Shirley)Tang bo Wang Seshasai srinivasan Amin Reza Rajabzadeh Andreas Rosenkranz School of biomedical Engineering McMaster University1280 Main Street WestHamiltonON L8S 4L8Canada Department of Chemistry and Waterloo Institute for Nanotechnology(WIN) University of Waterloo200 University Ave WestWaterlooONCanada Centre for Eye and Vision Research(CEVR) 17W Hong Kong Science ParkShatinHong KongPeople’s Republic of China Chair of Functional Materials Department of Materials Science and EngineeringSaarland UniversitySaarbruckenGermany W booth School of Engineering practice and Technology McMaster University1280 Main Street WestHamiltonON L8S 4L7Canada Department for Chemical Engineering Biotechnology and MaterialsUniversity of ChileSantiagoChile

Flexible sensors based on MXene-polymer composites are highly prospective for next-generation wearable electronics used in human-machine *** of the motivating factors behind the progress of flexible sensors is the steady arrival of new conductive ***,a new family of 2D nanomaterials,have been draw-ing attention since the last decade due to their high electronic conduc-tivity,processability,mechanical robustness and chemical *** this review,we encompass the fabrication of MXene-based polymeric nanocomposites,their structure-property relationship,and applications in the flexible sensor ***,our discussion is not only lim-ited to sensor design,their mechanism,and various modes of sensing platform,but also their future perspective and market throughout the *** our article,we intend to fortify the bond between flexible matrices and MXenes thus promoting the swift advancement of flexible MXene-sensors for wearable technologies.

关键词： Flexible sensor 2D nanomaterials MXene Wearable and conductive Applications

Enhanced green emission from La＿(0.4)F＿3:Ce＿(0.45),Tb＿(0.15)/TiO＿2 core/shell structure

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Journal of Rare Earths 2015年第1期33卷 20-26页

作者： T.K.srinivasan b.S.panigrahi N.Suriyamurthy p.K.parida b.Venkatraman Indira Gandhi Centre for Atomic Research Kalpakkam–603102 India

Nano sized La0.4F3：Ce0.45,Tb0.15（core）, La0.4F3：Ce0.45,Tb0.15（Ti O2）（core） shell, La0.55F：Ce0.45, and La0.85F3：Tb0.15 particles were synthesized by adopting co-precipitation technique in acidic environment and coated with Ti O2 to form a core-shell structure by adopting a mechanical dispersion method at room temperature. The synthesized materials were characterized using X-ray diffraction（XRD）, transmission electron microscopy（TEM）, Fourier transform infrared spectroscopy（FTIR）, ultraviolet-visible spectroscopy（UV-Vis） absorption, photoluminescence and lifetime spectroscopy. The crystal structure of La0.4F3：Ce0.45,Tb0.15 remained the same as La F3 after being doped with Ce and Tb ions but with a slight decrease in the lattice parameter. TEM image confirmed the formation of a core-shell structure. The La0.4F3：Ce0.45,Tb0.15/Ti O2 exhibited Tb3＋ fluorescence enhancement by a factor of 1.76. Scintillation from the synthesized materials was also observed under X-ray excitation.

关键词： core-shell cerium terbium luminescence lanthanum fluoride scintillation rare earths

broadband ferromagnetic resonance studies on influence of interface bonding on magnetoeletric effects in ferrit e-ferroelectric composites

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Frontiers of physics 2012年第4期7卷 418-423页

作者： D.V.b.Murthy Gopalan srinivasan physics Department Oakland UniversityRochesterMI 48309USA

A systematic study has been carried out on the effects of interface bonding on the strain mediated magnetoelectric （ME） coupling in ferromagnetic-ferroelectric bilayers. The technique used involves the static electric field E tuning of the ferromagnetic resonance （FMR） in yttrium iron garnet （YIG） and lead zirconate titanate （pZT） or lead magnesium niobate-lead titanate （pMN-pT）. A broad band detection technique has been developed for studies over 1 40 GHz in three types of bilayers： epoxy bonded, eutectic bonded and YIG films directly grown onto piezoelectric substrate by electrophoretic deposition. The strength A of the converse ME effect （CME） defined as the ratio of the frequency shift 8f in FMR in E, A = 8f/E, varies over the range 0.8 to 4.3 ***/kV, and is the highest for eutectic bonded samples and is the weakest for epoxy bonded bilayers. The results presented here as of importance for dual electric and magnetic field tunable ferrite ferroelectric microwave resonators and filters.

关键词： Keywords ferrite ferroelectric magnetoelectric ferromagnetic resonance

A Cascaded Discharge plasma—Adsorbent Technique for Engine Exhaust Treatment

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plasma Science and Technology 2003年第3期5卷 1825-1833页

作者： b.S.Rajanikanth A.D.srinivasan b.AryaNandiny DeptofHighVoltageEngineering IndianInstituteofScienceBangalore560012India

A cascaded system of electrical discharges (non-thermal plasma) andadsorption process was investigated for the removal of oxides of Nitrogen (NO_x) and totalhydrocarbons (THC) from an actual diesel engine exhaust. The non-thermal plasma and adsorptionprocesses were separately studied first and then the cascaded process was studied. In this study,different types of adsorbents were used. The NO_x removal efficiency was higher withplasma-associated adsorption (cascaded) process compared to the individual processes and the removalefficiency was found almost invariant in time. When associated by plasma, among the adsorbentsstudied, activated charcoal and MS-13X were more effective for NO_x and THC removal *** experiments were conducted at no load and at 50 % load conditions. The plasma reactor was keptat room temperature throughout the experiment, while the temperature of the adsorbent reactor wasvaried. A relative comparison of adsorbents was discussed at the end.

关键词： discharge plasma engine exhaust adsorbent non-thermal plasma

Enhanced performance of Discharge plasma in Raw Engine Exhaust Treatment-Operation under Different Temperatures and Loads

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plasma Science and Technology 2005年第4期7卷 2943-2946页

作者： b S Rajanikanth A D srinivasan Subhankar das Dept.of High Voltage Engineering Indian Institute of Science Bangalore 560012IndiaDept.of High Voltage Engineering Indian Institute of ScienceBangalore 560012IndiaDept.of High Voltage Engineering Indian Institute of ScienceBangalore 560012India

This paper reports improved performance of discharge plasma in raw engine exhaust treatment. For the purpose of investigation, both filtered and raw diesel engine exhaust were separately treated by the discharge plasma. In raw exhaust environment, the discharge plasma exhibits a superior performance with regard to NOx removal, energy consmnption and formation of by-products. In this study, experiments were conducted at conditions of different temperatures and loads.

关键词： raw diesel engine exhaust discharge plasma NOx removal

properties of Semijoin Sequences

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Journal of Computer Science & Technology 1989年第2期4卷 106-115页

作者： bengC.Ooi b.srinivasan DepartmentofComputerScience MonashUniversityClaytonAustralia DepartmentofComputerScience MonashUniv

The problem of finding optimum semijoin sequ4ence of an arbitrary query under linear cost function for the transmission cost is *** heuristic algorithms with desirable properties are *** this paper four properties of semijoin programs for distributed query processing are identified,The use of these properties in constructing semijoin sequence is *** existing algorithm is modified incorporating these *** comparison with existing algorithms shows the superiority of the proposed algorithm.

关键词：分布式数据库系统数据处理数据查询

Unfiltered Diesel Engine Exhaust Treatment by Discharge plasma: Effect of Soot Oxidation

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plasma Science and Technology 2004年第5期6卷 2475-2480页

作者： b.S.Rajanikanth Subhankar Das A.D.srinivasan Dept. of High Voltage Engineering Indian Institute of Science Bangalore 560012 IndiaDept. of High Voltage Engineering Indian Institute of Science Bangalore 560012 IndiaDept. of High Voltage Engineering Indian Institute of Science Bangalore 560012 India

A cascaded system of electrical discharges (Non-thermal plasma), catalyst andadsorption process was investigated for the removal of oxides of nitrogen (NO_x) and carbonmonoxide (CO) from a Diesel engine raw exhaust. The three processes were separately studied first,and then the cascaded processes, namely plasma-catalyst and plasma-adsorbent, were investigated. Inthis paper main emphasis was laid on the effect of carbonaceous soot oxidation on the plasmatreatment process. While the cascaded plasma-catalyst process exhibits a higher CO removal, thecascaded plasma-adsorbent process exhibits a higher NO_x removal. The experiments were conductedunder no-load. The plasma and adsorbent reactors were kept at room temperature throughout theexperiment while the catalyst reactor was kept at 200℃ / 300℃.

关键词： discharge plasma diesel engine exhaust catalyst adsorbent non-thermalplasma

Template-based Gait Authentication Through bayesian Thresholding

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IEEE/CAA Journal of Automatica Sinica 2019年第1期6卷 209-219页

作者： Ebenezer R.H.p.Isaac Susan Elias srinivasan Rajagopalan K.S.Easwarakumar IEEE the Department of Computer Science and Engineering Indian Institute of Technology Madras the School of Electronics Engineering VIT University the Department of physiology and biomedical Engineering Mayo Clinic the Department of Computer Science and Engineering Anna University

While gait recognition is the mapping of a gait sequence to an identity known to the system, gait authentication refers to the problem of identifying whether a given gait sequence belongs to the claimed identity. A typical gait authentication system starts with a feature representation such as a gait template, then proceeds to extract its features, and a transformation is ultimately applied to obtain a discriminant feature set. Almost every authentication approach in literature favours the use of Euclidean distance as a threshold to mark the boundary between a legitimate subject and an impostor. This article proposes a method that uses the posterior probability of a bayes' classifier in place of the Euclidean distance. The proposed framework is applied to template-based gait feature representations and is evaluated using the standard CASIA-b gait database. Our study experimentally demonstrates that the bayesian posterior probability performs significantly better than the de facto Euclidean distance approach and the cosine distance which is established in research to be the current state of the art.

关键词： bayes’ rule biometrics gait recognition linear discriminant analysis verification

Treatment of taste and odor causing compounds 2-methyl isoborneol and geosmin in drinking water:A critical review

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Journal of Environmental Sciences 2011年第1期23卷 1-13页

作者： Rangesh srinivasan George A.Sorial Environmental Engineering program School of EnergyEnvironmentalBiologicaland Medical EngineeringUniversity of CincinnatiCincinnatiOH 45221-0012USA

problems due to the taste and odor in drinking water are common in treatment facilities around the world. Taste and odor are perceived by the public as the primary indicators of the safely and acceptability of drinking water and are mainly caused by the presence of two semi-volatile compounds - 2-methyl isobomeol （MIb） and geosmin. A review of these two taste and odor causing compounds in drinking water is presented. The sources for the formation of these compounds in water are discussed alongwith the health and regulatory implications. The recent developments in the analysis of MIb/geosmin in water which have allowed for rapid measurements in the nanogram per liter concentrations are also discussed. This review focuses on the relevant treatment alternatives, that are described in detail with emphasis on their respective advantages and problems associated with their implementation in a full- scale facility. Conventional treatment processes in water treatment plants, such as coagulation, sedimentation and chlorination have been found to be ineffective for removal of M1b/geosmin. Studies have shown powdered activated carbon, ozonation and biofiltration to be effective in treatment of these two compounds. Although some of these technologies are more effective and show more promise than the others, much work remains to be done to optimize these technologies so that they can be retrofitted or installed with minimal impact on the overall operation and effectiveness of the treatment system.

关键词： adsorption drinking water geosmin 2-methyl isoborneol (MIb) odor taste