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A case study of tsunami detection system and ocean wave imaging mechanism using radar

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Journal of Ocean Engineering and Science 2019年第3期4卷 203-210页

作者： sudhir kumar chaturvedi Faculty Department of Aerospace EngineeringUniversity of Petroleum and Energy StudiesDehradun 248007India

Tsunamis are the seismic generated waves,which causes the huge displacement of water volume in ocean from deep water to the coastal *** detection and investigation of its early warning is the very important issue nowadays,which supports our existing system more *** paper proposes a case study of the mathematical models of the ocean wave imaging schemes and the Tsunami detection system model for the Japan’s region where Tsunamis hits on March 11,*** detection function(q-factor)was developed which is well known as q-factor estimates.q-factor works on the principle of selected radar band *** tsunami reaches around an hour afterward the earthquake,as specified through the relationship in the velocities in altered *** effects in a high-pitched upsurge in the q-factor,descriptive the tsunami *** radar functions for only 40 min in the hour,causing in the 20 min gaps noticeable in *** entrance of the tsunami is specified by relationship between velocities in altered bands early about 2.5 h afterward the volcanic activity.q-factor demonstrates a sudden conversion in magnitude about 8 min afterward the start of the velocity *** this point,the velocity is declining,representing that the tsunami is stirring offshore,subsequent in the negative *** future improvements in integrated tsunami detection systems can also be easily incorporated in this technique in order to obtain better detection capabilities.

关键词： Tsunami detection RADAR Waves modulations

Measurement and validation of tsunami Eigen values for the various water wave conditions

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Journal of Ocean Engineering and Science 2020年第1期5卷 41-54页

作者： sudhir kumar chaturvedi Ugur Guven Pankaj kumar Srivastava Department of Aerospace Engineering University of Petroleum and Energy StudiesDehradun 248007India Department of International Affairs University of Petroleum and Energy StudiesDehradun 248007India Department of Petroleum Engineering&Earth Sciences University of Petroleum and Energy StudiesDehradun 248007India

This paper proposes the mathematical model to investigate how to compute and analyze the tsunami wave parameters and the retrieval of its early warning using remote sensing technique to improve the detection *** different methods available for the evaluation of the tsunami detection systems are also *** research work is to compute and analyze the tsunami wave parameters such as Eigen functions in deep,intermediate and shallow water *** computational and algorithmic analysis of tsunami wave parameters are achieved in three steps:the first step is to calculate the earthquake fault parameters such as length,width,area and displacement from the epicenter,which corresponds to the effect of its variation with respect to the earthquake *** variation of each fault parameters have been measured and recorded out over the certain moment of magnitudes(M).This shows smaller values as compared to the earthquake magnitude M 9.5 at which all the parameters shows very large *** second step involves the measurements of water wave angular frequency in deep,intermediate and shallower region of *** values of angular frequencies in deep water shows the lesser response as compared to other two water conditions because,in deep water the angular velocity of water particles travels with the lesser speed as compared to the shallower region as per Airy’s wave *** simulation results show the angular velocity in Deep Ocean is very less,moderate in the intermediate water and very high on the coastal *** indicates the higher impact on coastal *** third step involves the simulation study of measurement of tsunami Eigen functions such as orbital velocity,acceleration,wave potential in deep,intermediate and shallower water *** simulation result shows the resultant orbital velocity and accelerations in deep,intermediate and shallow water regions provides the similar response as angular velocity due to same proportion of the

关键词： Tsunami Eigen functions Monitoring Detection.

A brief review on tsunami early warning detection using BPR approach and post analysis by SAR satellite dataset

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Journal of Ocean Engineering and Science 2017年第2期2卷 83-89页

作者： sudhir kumar chaturvedi Pankaj kumar Srivastava Ugur Guven Department of Aerospace Engineering University of Petroleum&Energy StudiesDehradun 248007India Department of Petroleum Engineering&Earth Sciences University of Petroleum&Energy StudiesDehradun 248007India

Tsunami early warning systems have provided to be the extreme importance after the tsunami that hit Japan in March *** research article presents a case study based on the tsunami detection using Bottom Pressure Rate(BPR)measurement and the post the analysis using the SAR datasets.A final decision based system using BPR has been studied to carry out the measurements of tsunami wave *** based study has also been carried out for the post tsunami *** filters are utilized to remove the speckle noise presents in *** scope of this work has also been proposed.

关键词： Remote sensing Tsunami damage detection Epicenter BPR

An assessment of oil spill detection using Sentinel 1 SAR-C images

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Journal of Ocean Engineering and Science 2020年第2期5卷 116-135页

作者： sudhir kumar chaturvedi Saikat Banerjee Shashank Lele Department of Aerospace Engineering University of Petroleum and Energy StudiesDehradun 248007India Wingbotics Kolkata 700086West BengalIndia Metric Global Pune 411036India

Identification of an oil spill is additionally essential to evaluate the potential spread and float from the source to the adjacent coastal *** such manner,usage of Synthetic Aperture RADAR(SAR)information for the recognition and checking of oil spills has gotten extensive consideration as of late,because of their wide zone inclusion,day-night and all-weather *** present examination studies an oil spill occurred in the Al Khafji region by applying Sentinel 1 SAR-C *** Khafji is on the borderline between Saudi Arabia and Kuwait in the Persian Gulf and it is detected as an unbiased *** Khafji region can possibly deliver in excess of 7472.403 m³barrels of oil for every day(m³/d).Approaches dependent on multi-sensor satellite images examination have been produced for distinguishing oil spills from referred to common leaks just as oil slick *** this paper,one of these techniques is associated with Sentinel 1 images of a known region of natural oil leakage and of an ongoing oil slick incident in Al Khafji *** Synthetic Aperture Radar(SAR)is perceived as the most significant remote sensing apparatus for the ocean and ocean waters oil slick examination,recording,documentation and ***,this paper examines oil spills recognition in the Persian Gulf surveyed by utilizing Sentinel-1(SAR-C)*** demonstrated the significance of the VV polarization of the Sentinel-1 for recognizing oil-spills just as the diminished utility of the VH polarization in this sole circumstance.

关键词： Sentinel-1 Oil-spill SAR Ocean Poll Polarimetry Phase Speckle filter Ocean mask Surface Scattering Sigma

Mathematical modelling and analysis of plastic waste pollution and its impact on the ocean surface

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Journal of Ocean Engineering and Science 2020年第2期5卷 136-163页

作者： Sonam chaturvedi Bikarama Prasad Yadav Nihal Anwar Siddiqui sudhir kumar chaturvedi Department of Health Safety Environment and Civil Engineering University of Petroleum and Energy Studies(UPES)Bidholi Energy AcresDehradun 248007India Department of Aerospace Engineering University of Petroleum and Energy Studies(UPES)Bidholi Energy AcresDehradun 248007India

Plastic contamination is universal all through the marine condition,yet gauges of the worldwide plenitude and weight of coasting plastics have needed information,especially from the Southern Hemisphere and remote *** we report a gauge of the all-out number of plastic particles and their weight gliding on the planet’s seas from 24 endeavours(2007-2013)over every one of the five subtropical gyres,coastal Australia,Bay of Bengal and the Mediterranean Sea directing surface net tows(N=680)and visual review transects of huge plastic flotsam and debris(N=891).Utilizing an oceanographic model of coasting trash dispersal adjusted by our information,and rectifying for wind-driven vertical blending,we gauge at least 5.25 trillion particles weighing 268,940 *** looking at between four size classes,two micro plastic4.75 mm,a huge loss of micro plastics is seen from the ocean surface contrasted with anticipated paces of discontinuity,recommending there are systems at play that expel<4.75 mm plastic particles from the sea *** focus on the life cycle assessment and the brief overview of the plastic waste management over the ocean surfaces with the various mathematical models has been *** impact of the ocean pollution is also being analysed.

关键词： Solid waste Plastic Garbage patch Ocean pollution Mathematical model Ocean surface

Gimbal orientation study and assessment for the autonomous underwater vehicles

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Journal of Ocean Engineering and Science 2020年第2期5卷 101-115页

作者： sudhir kumar chaturvedi Sourav Basu Saikat Banerjee Department of Aerospace Engineering UPESDehradun 248007UttarakhandIndia Department of Electrical Engineering Jalpaiguri Government Engineering CollegeJalpaiguri 735102West BengalIndia Department of UAV and Remote Sensing WingboticsKolkata-700086West BengalIndia

Autonomous underwater vehicles are at present being used for scientific,commercial and military submerged *** this paper,a system has been proposed which can be used underwater as remotely operated underwater vehicle for submerged survey for different *** systems require self-sufficient direction and control frameworks so as to perform submerged ***,framework identification and control of these vehicles are as yet real dynamic zones of innovative *** theory is worried about the plan and improvement of an Autonomous Underwater Vehicle(AUV)specifically proposed for passage into global submerged vehicle *** theory comprises of two stages;the first includes the plan and development of the vehicle while the subsequent stage is worried about the demonstrating and framework identification of the vehicle,just as the reproduction of a control *** structure and advancement of the vehicle comprised of actualizing a mechanical and electrical framework,just as the reconciliation of *** framework identification of the vehicle parameters comprised of utilizing locally available sensors to perform static and dynamic *** squares estimation was utilized to gauge the parameters from the pre-researched data obtained.

关键词： IMU sensor Gimbal stabilization Kalman filter MATLAB Simulink Brushless DC motor

Retraction notice to<"Gimbal orientation study and assessment for the autonomous underwater vehicles"><[Journal of Ocean Engineering and Science Volume 5,Issue 2,June 2020,Pages 101-115]>

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Journal of Ocean Engineering and Science 2021年第2期6卷 215-215页

作者： sudhir kumar chaturvedi Sourav Basu Saikat Banerjee Department of Aerospace Engineering UPES Dehradun 248007 Uttarakhand India Department of Electrical Engineering Jalpaiguri Government Engineering College Jalpaiguri 735102 West Bengal India Department of UAV and Remote Sensing Wingbotics Kolkata 700086 West Bengal India

sudhir kumar chaturvedi,Sourav Basu,Saikat *** of Aerospace Engineering,UPES,Dehradun 248007,Uttarakhand,*** of Electrical Engineering,Jalpaiguri Government Engineering College,Jalpaiguri 735102,West Bengal,*** of UAV and Remote Sensing,Wingbotics,Kolkata 700086,West Bengal,India This article has been retracted:please see Elsevier Policy on Article Withdrawal(https://***/about/our-business/policies/article-withdrawal).This article has been retracted at the request of *** article duplicates significant parts of a paper that had already appeared in[International Journal of Recent Technology and Engi-neering,volume 8(2019)https://***/wp-content/uploads/papers/v8i1/*** of the conditions of submission of a paper for publication is that authors declare explicitly that the paper has not been previously published and is not under consideration for publication ***-use of any data should be appropriately *** such this article represents a misuse of the scientific pub-lishing *** scientific community takes a very strong view on this matter and apologies are offered to readers of the journal that this was not detected during the submission process.

关键词： please process. journal

Dragonfly Inspired Nanocomposite Flapping Wing for Micro Air Vehicles

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Journal of Bionic Engineering 2019年第5期16卷 894-903页

作者： David kumar Preetamkumar Marutrao Mohite sudhir Kamle Department of Aerospace Engineering Indian Institute of Technology KanpurKanpur 208016India

The current research is aimed towards the development of dragonfly inspired nanocomposite flapping wing for micro air vehicles(MAVs).The wing is designed by taking inspiration from the hind wing of dragonfly(Anax Parthenope Julius).Carbon nanotubes(CNTs)/polypropylene nanocomposite and low-density polyethylene are used as the wing *** nanocomposites are developed with varying CNTs'weight percentage(0%-1%)and characterized for dynamic mechanical properties,which revealed that the 0.1 weight percentage case produces highest storage modulus values throughout the frequency range(1 Hz一90 Hz).It is also observed that the storage modulus values are in the range ofYoung^modulus of veins and membrane of natural insect *** is useful to achieve true *** manufacturing technique such as photolithography is used for wing *** length,weight and average thickness of the fabricated wing are^44 mm,26.22 mg and 187 pm,*** structural dynamic properties of the fa bricated wing are obtained experimentally and computationally using DIC and ANSYS,*** developed dragonfly inspired wing showed a natural frequency of 29.4 Hz with a bending mode shape which is close to the characteristic frequency of its natural counterpart.

关键词： flapping wings biomimicking nanocomposites MAVs

Selective Mapping Scheme for Universal Filtered Multicarrier

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Intelligent Automation & Soft Computing 2023年第5期36卷 1273-1282页

作者： Akku Madhusudhan sudhir kumar Sharma Jaipur National University JagatpuraJaipur302017RajasthanIndia

The next step in mobile communication technology,known as 5G,is set to go live in a number of countries in the near *** wireless applica-tions have high data rates and mobility requirements,which have posed a chal-lenge to mobile communication technology researchers and designers.5G systems could beneﬁt from the Universal Filtered Multicarrier(UFMC).UFMC is an alternate waveform to orthogonal frequency-division multiplexing(OFDM),inﬁltering process is performed for a sub-band of subcarriers rather than the entire band of subcarriers Inter Carrier Interference(ICI)between neighbouring users is reduced via the sub-bandﬁltering process,which reduces out-of-band ***,the UFMC system has a high Peak-to-Average Power Ratio(PAPR),which limits its *** optimization based Selective mapping(SLM)is used in this paper to optimise the *** on the cognitive behaviour of crows,the research study suggests an innovative metaheuristic opti-mization known as Crow Search Algorithm(CSA)for SLM ***-pared to the standard UFMC,SLM-UFMC system,and SLM-UFMC with conventional metaheuristic optimization techniques,the suggested technique sig-niﬁcantly reduces *** the UFMC system,the suggested approach has a very low Bit Error Rate(BER).

关键词： -Universalﬁltered multicarrier(UFMC) selective mapping(SLM) metaheuristic optimization crow search algorithm(CSA) bit error rate(BER)