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Design of Ethernet Based Data Acquisition System for Yaw Rate and Longitudinal Velocity Measurement in Automobiles

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International Journal of Automation and computing 2020年第6期17卷 883-890页

作者： K.Arun Venkatesh N.mathivanan University Science Instrumentation Centre Madurai Karnaraj UniversityMadurai 625021India

Design of an Ethernet network compatible data acquisition system for the measurement of yaw rate and longitudinal velocity in automobiles is *** data acquisition system includes a base node and a remote *** remote node consists of a micro electro mechanical system(MEMS)accelerometer,an MEMS gyroscope,an advanced RISC machines(ARM)CORTEX M3 microcontroller and an Ethernet PHY *** remote node measures the yaw rate and the longitudinal velocity of an automobile and sends the measured values to the base node using Ethernet *** base node consists of an ARM CORTEX M3 microcontroller and an Ethernet PHY *** base node receives the measured values and saves in a microSD card for further *** characteris tics of the net work and the measurement system are stu died and repor ted.

关键词： In-vehicle networks Ethernet yaw rate longitudinal velocity complementary filter.

Pulsed current and dual pulse gas metal arc welding of grade AISI: 310S austenitic stainless steel

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Defence Technology（防务技术） 2015年第3期11卷 269-274页

作者： A.mathivanan A.SENTHILKUMAR K.DEVAKUMARAN Mechanical Engineering Department SRM University School of Mechanical and Building Sciences (SMBS) VIT University Welding Research Institute Bharath Heavy Electricals Limited (BHEL)

The transverse shrinkage, mechanical and metallurgical properties of AISI: 310 S ASS weld joints prepared by P-GMAW and DP-GMAW processes were investigated. It was observed that the use of the DP-GMAW process improves the aforementioned characteristics in comparison to that of the P-GMAW process. The enhanced quality of weld joints obtained with DP-GMAW process is primarily due to the combined effect of pulsed current and thermal pulsation(low frequency pulse). During the thermal pulsation period, there is a fluctuation of wire feed rate,which results in the further increase in welding current and the decrease in arc voltage. Because of this synchronization between welding current and arc voltage during the period of low frequency pulse, the DP-GMAW deposit introduces comparatively more thermal shock compared to the P-GMAW deposit, thereby reducing the heat input and improves the properties of weld joints.

关键词： AISI 电弧焊接奥氏体不锈钢脉冲气体电流脉冲品位金属力学性能

Ovicidal and repellent activities of botanical extracts against Culex quinquefasciatus,Aedes aegypti and Anopheles stephensi(Diptera:Culicidae)

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Asian Pacific Journal of Tropical Biomedicine 2011年第1期1卷 43-48页

作者： Govindarajan M mathivanan T Elumalai K Krishnappa K Anandan A Division of Vector Biology and Phytochemistry Department of ZoologyAnnamalai University Unit of Entomotoxicity Department of ZoologyGovernment Thirumagal Mills College

Objective:To determine the ovicidal and repellent activities of methanol leaf extract of Ervatamia coronaria(***) and Caeslpinia pulckerrima(***) against Culex quinquefasciatus(***),Aedes aegypti(***) and Anopheles stephensi(An. stephensi).Methods:The ovicidal activity was determined against three mosquito species at various concentrations ranging from 50-450 ppm under the laboratory *** hatch rates were assessed 48 h after *** repellent efficacy was determined against three mosquito species at three concentrations viz.,1.0,2.5 and 5.0 mg/cm under the laboratory conditions. Results:The crude extract of *** exerted zero hatchability(100%mortality) at 250.200 and 150 ppm for ***,*** and ***,*** crude extract of *** exerted zero hatchability(100%mortality) at 375.300 and 225 ppm for ***,*** and ***,*** methanol extract of E. coronaria found to be more repellenct than *** extract.A higher concentration of 5.0 mg/cm^2 provided 100%protection up to 150.180 and 210 min against ***,Ae. aegypti and ***,*** results clearly showed that repellent activity was dose ***:From the results it can be concluded the crude extracts of *** and *** are an excellent potential for controlling ***,*** and *** mosquitoes.

关键词： Ervatamia coronaria Caesalpinia pulcherrima Ovicidal activity Repellent activity Culex quinquefasciatus Aedes aegypti Anopheles stephensi Mosquito Leaf extract Mortality

Combinatorial treatment of curcumin or silibinin with doxorubicin sensitises high-risk neuroblastoma

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Journal of Cancer Metastasis and Treatment 2020年第1期6卷 63-73页

作者： Pamali Fonseka Lahiru Gangoda Mohashin Pathan Di Giannatale Angela Suresh mathivanan Department of Biochemistry and Genetics La Trobe Institute for Molecular ScienceLa Trobe UniversityMelbourneVictoria 3086Australia Department of Hematology/Oncology Bambino GesùChildren’s HospitalIRCCSRome 00165Italy.#Authors contributed equally

Aim:Neuroblastoma is a pediatric cancer of the sympathetic nervous *** various parameters including stage of the disease,amplification status of N-Myc,DNA index and histopathology,neuroblastoma can be stratified into low-and high-risk *** advances in treatment have significantly improved the survival rate of lowrisk neuroblastoma ***,the overall survival rate of high-risk neuroblastoma group,especially N-Myc amplified patients,is ***,the survivors of both low-and high-risk neuroblastoma manifest adverse side effects to chemotherapy and thus their quality of life is *** all these factors,there is an urgent need to develop therapeutic strategies with natural compounds to improve the survival rate and to reduce the side *** this study,we hypothesised that the mesenchymal nature of neuroblastoma cells is a reason,at least in part,for the aggressive and treatment resistant ***:In order to validate our hypothesis,we used publicaly available RNA-Seq data,in vitro assays and xenograft mouse ***:Using a combinatorial treatment of mesenchymal-to-epithelial inducers(curcumin or silibinin)with doxorubicin significantly increased the cell death in a panel of neuroblastoma cells in *** up analysis in vivo,confirmed the therapeutic benefit of utilising the combination of curcumin with *** combinatorial therapy significantly reduced the tumor burden and increased the survival of mice implanted with high-risk neuroblastoma ***:Taken together,this study shows the efficacy of using curcumin in combination with doxorubicin to improve the survival rate and has the potential to enhance the quality of life of neuroblastoma patients.

关键词： Neuroblastoma epithelial-to-mesenchymal transition curcumin silibinin combinatorial therapy

Applications of nanomaterials in mosquito vector control:A review

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Asian Pacific Journal of Tropical Medicine 2023年第11期16卷 479-489页

作者： Sahadiya Mandodan Aneha Kunnikuruvan Bhagyashree Bora Hemaladkshmi Padmanaban Abhisubesh Vijayakumar Kakhuangailiu Gangmei Manikandan Sivaprakasam Jibi Lukose mathivanan Ashokkumar Vijayalakshmi Krishnamoorthy Subbiah Poopathi Unit of Microbiology and Immunology ICMR-Vector Control Research CentreDepartment of Health ResearchMinistry of Health and Family WelfarePuducherry 605006India

The periodic outbreak of mosquito-borne diseases like dengue fever,zika fever,and yellow fever all over the world highlights the need for effective mosquito control methods targeting the biological *** to the lack of therapeutic measures,preventive treatments or vaccines against pathogens,insecticide resistance eventually lead the research focus towards novel technological applications in mosquito *** with ovicidal,larvicidal,adulticidal,and repellent properties for controlling mosquito vectors are under research.A literature search was carried out for advancements in nanomaterials,insecticides,and mosquito control in PubMed/MEDLINE,Scopus,Google Scholar,ScienceDirect,and Web of *** paper aims to provide insights into various nanomaterials relevant to mosquito-borne diseases,in vivo and in vitro toxicity evaluation against mosquito species,mode of action,effect on non-target organisms,and ecological *** and inorganic materials that provide controlled release,target delivery,less dosage,prolonged efficacy,a reduction in the use of organic solvents and emulsifiers,and minimum pollution to the environment have already been ***,further research on the ecological risk and economic feasibility of nanomaterials in mosquitocidal applications should be done prior to commercialization.

关键词： Nanomaterials Nanoformulation Nanopesticides Mosquito control

Emphasizing privacy and security of edge intelligence with machine learning for healthcare

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International Journal of Intelligent Computing and Cybernetics 2022年第1期15卷 92-109页

作者： Sukumar Rajendran Sandeep Kumar mathivanan Prabhu Jayagopal Kumar Purushothaman Janaki Benjula Anbu Malar Manickam Bernard Suganya Pandy Manivannan Sorakaya Somanathan Vellore Institute of Technology VelloreIndia

Purpose-Artificial Intelligence(AI)has surpassed expectations in opening up different possibilities for machines from different walks of *** service providers are *** computing reduces latency,improving availability and saving ***/methodology/approach-The exponential growth in tensor processing unit(TPU)and graphics processing unit(GPU)combined with different types of sensors has enabled the pairing of medical technology with deep learning in providing the best patient care.A significant role of pushing and pulling data from the cloud,big data comes into play as velocity,veracity and volume of data with IoT assisting doctors in predicting the abnormalities and providing customized treatment based on the patient electronic health record(EHR).Findings-The primary focus of edge computing is decentralizing and bringing intelligent IoT devices to provide real-time computing at the point of presence(PoP).The impact of the PoP in healthcare gains importance as wearable devices and mobile apps are entrusted with real-time monitoring and diagnosis of *** impact edge computing of the PoP in healthcare gains significance as wearable devices and mobile apps are entrusted with real-time monitoring and diagnosis of ***/value-The utility value of sensors data improves through the Laplacian mechanism of preserved PII response to each query from the *** scalability is at 50%with respect to the sensitivity and preservation of the PII values in the local ODL.

关键词： Edge computing Deep learning Cloud computing Fog computing Electronic health record Tensor processing unit Graphics processing unit Point of presence

In-Line Inspection of Pipeline Defects Detection Using Ring-Type Laser

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World Journal of Engineering and Technology 2021年第3期9卷 589-603页

作者： mathivanan Durai Yang-Min Hsu Ho Chang Graduate Institute of Manufacturing Technology National Taipei University of Technology Chinese Taipei

Pipeline plays a vital role in transporting fluids like oils, water, and petrochemical substances for longer distances. Based on the materials they carry, prolonged usage may cause the initiation of defects in the pipeline. These defects occur due to the formed salt deposits, chemical reaction happens between the inner surface and the transferring substance, prevailing environmental conditions, etc. These defects, if not identified earlier may lead to significant losses to the industry. In this work, an in-line inspection system utilizes the nondestructive way for analyzing the internal defects in the petrochemical pipeline. This system consists of a pipeline inspection robot having two major units namely the visual inspection unit and the power carrier unit. The visual inspection unit makes use of a ring-type laser diode and the camera. The laser diode serves as a light source for capturing good quality images of inspection. This unit is controlled by the Arduino in the power carrier unit which provides the necessary movement throughout the pipe. The inspected images captured by the camera are further processed with the aid of NI vision assistant software. After applying the processing function parameters provided by this software, the defect location can be clearly visualized with high precision. Three sets of defects are introduced in a Polylactide (PLA) pipe based on its position and angle along the circumference of the pipe. Further, this robot system serves as a real-time interactive image synchronization system for acquiring the inspected images. By comparing the actual and calculated defect size, the error percentage obtained was less than 5%.

关键词： Pipeline Robotic System Ring-Type Laser Vision Assistant Image Pro-cessing Leak Holes Detection Nondestructive Testing

Interlaminar Fracture Toughness and Low-Velocity Impact Resistance of Woven Glass Epoxy Composite Laminates of EP3 Grade

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Journal of Minerals and Materials Characterization and Engineering 2012年第3期11卷 321-333页

作者： N. Rajesh mathivanan J. Jerald Department of Mechanical Engg. P. E. S. Institute of Technology Bangalore - 85 India Dept. of Production Engg. National Institute of Technology Tiruchirappalli - 15 India

This work presents the delamination resistance of woven glass fibre reinforced polymers (GFRP) and its influence on GFRP’s resistance to point impact. Two different types of laminates were fabricated by hand lay-up technique;(i) woven glass fibre epoxy matrix laminates and (ii) woven glass fibre epoxy matrix laminates with 3% graphite particulate fillers. End Notch Flexure (ENF) test was adopted for the measurement of delamination resistance. The two GFRPs laminates show similar mode II delamination resistance. At impact velocities between 2.215 and 4.429 m/sec, the GFRP developed a smaller damage size than the graphite-based GFRP laminates, indicating higher impact toughness. Difference of the impact resistance between the two GFRPs is mainly on the impact damage size developed. The total energy absorbed during the impact remains the same, which is independent of mode II delamination resistance of the GFRP. The history of relevant dynamic and energetic quantities, both to synthesize the dependency of the energy parameters and force threshold values on the impact velocity are discussed.

关键词： Polymer matrix composite Fibre Laminates Impact toughness.

Water Manipulation through Curvature Energy on Humidity Microparticles

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Electrical Science & Engineering 2022年第1期4卷 21-29页

作者： Francisco Bulnes isaias Martinez isai M.Martinez IINAMEI International Advanced Research in Mathematics and EngineeringC.A.ChalcoMexico

The electric field created in a curvature energy sensor on air microparticles is used to obtain a temperature-humidity map G:M→SO(2)∪F,by stereo-radially of the sensor design to detect and measure the temperature and humidity of certain local region of the environment ***,considering the curvature energy as the deviation of any field interaction,even the obstruction to its proper flow,is designed and created a humidity-resistor sensor to the control and optimization of humidity in a space with different gradients of humidity,pressure and temperature in a radial detection and *** the sensing problem is a problem of free boundary conditions where is satisfied an energy functional of norm ||ξ||_(2),to curvature functions κ,that satisfy in the temperature and humidity function ξ,the change limit condition ξ|_(∂Ω)≤2πξ(r).This carries to that the temperature-humidity sensor must be designed on a length gauge to measure the changes of humidity and temperature in the space.

关键词： Curvature energy Humidity Mean energy curvature Spectral curvature Stereo-radially Water particles