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Enhanced Clustering Based OSN Privacy Preservation to Ensure k-Anonymity, t-Closeness, l-Diversity, and Balanced Privacy Utility

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Computers, Materials & Continua 2023年第4期75卷 2171-2190页

作者： Rupali Gangarde Amit Sharma ambika pawar Department of CSE Lovely Professional UniversityPhagwara144411India Department of CSE Symbiosis Institute of Technology(SIT)Affiliated to Symbiosis International(Deemed University)Pune412115India School of Computer Applications Lovely Professional UniversityPhagwara144411India Learning&Development Persistent UniversityPersistent SystemsPune411057India

Online Social Networks (OSN) sites allow end-users to share agreat deal of information, which may also contain sensitive information,that may be subject to commercial or non-commercial privacy attacks. Asa result, guaranteeing various levels of privacy is critical while publishingdata by OSNs. The clustering-based solutions proved an effective mechanismto achieve the privacy notions in OSNs. But fixed clustering limits theperformance and scalability. Data utility degrades with increased privacy,so balancing the privacy utility trade-off is an open research issue. Theresearch has proposed a novel privacy preservation model using the enhancedclustering mechanism to overcome this issue. The proposed model includesphases like pre-processing, enhanced clustering, and ensuring privacy *** enhanced clustering algorithm is the second phase where authorsmodified the existing fixed k-means clustering using the threshold *** threshold value is determined based on the supplied OSN data of edges,nodes, and user attributes. Clusters are k-anonymized with multiple graphproperties by a novel one-pass algorithm. After achieving the k-anonymityof clusters, optimization was performed to achieve all privacy models, suchas k-anonymity, t-closeness, and l-diversity. The proposed privacy frameworkachieves privacy of all three network components, i.e., link, node, and userattributes, with improved utility. The authors compare the proposed techniqueto underlying methods using OSN Yelp and Facebook datasets. The proposedapproach outperformed the underlying state of art methods for Degree ofAnonymization, computational efficiency, and information loss.

关键词： Enhanced clustering online social network k-anonymity t-closeness l-diversity privacy preservation

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Nonlinear system dynamics of calcium and nitric oxide due to cell memory and superdiffusion in neurons

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Communications in Theoretical Physics 2024年第5期76卷 16-32页

作者： Anand pawar Kamal Raj Pardasani Department of Mathematics Bioinformatics and Computer ApplicationsMaulana Azad National Institute of TechnologyBhopal-462003Madhya PradeshIndia

The integer-order interdependent calcium([Ca^(2+)])and nitric oxide(NO)systems are unable to shed light on the influences of the superdiffusion and memory in triggering Brownian motion(BM)in ***,a mathematical model is constructed for the fractional-order nonlinear spatiotemporal systems of[Ca^(2+)]and NO incorporating reaction-diffusion equations in *** two-way feedback process between[Ca^(2+)]and NO systems through calcium feedback on NO production and NO feedback on calcium through cyclic guanosine monophosphate(cGMP)with plasmalemmal[Ca^(2+)]-ATPase(PMCA)was incorporated in the *** Crank–Nicholson scheme(CNS)with Grunwald approximation along spatial derivatives and L1 scheme along temporal derivatives with Gauss–Seidel(GS)iterations were *** numerical outcomes were analyzed to get insights into superdiffusion,buffer,and memory exhibiting BM of[Ca^(2+)]and NO *** conditions,events and mechanisms leading to dysfunctions in calcium and NO systems and causing different diseases like Parkinson’s were explored in neurons.

关键词： [Ca^(2+)]and nitric oxide signaling reaction-diffusion equations fractional-order systems Grunwald approximation Gauss-Seidel iterations

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Influence of cerium ions on structure-dependent magnetic properties of Ba-Sr M-type hexaferrite nanocrystals

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Journal of Rare Earths 2024年第2期42卷 364-372,I0005页

作者： Ram A.pawar Sunil M.Patange P.M.Dighe Sher Singh Meena Abdullah GAl-Sehemi Mehboobali Pannipara Santosh S.Jadhav Department of Physics ArtsCommerce and Science CollegeAhmednagar413711MaharashtraIndia Department of Physics Shri Krishna MahavidyalayaGunjotiDistOsmanabad413606MaharashtraIndia Padmashri Vikhe Patil College of Arts Science and CommercePravaranagarA/P.Loni(Kd)Tal.RahataDistAhmednagar413713MaharashtraIndia Solid State Physics Division Bhabha Atomic Research CentreMumbai400085MaharashtraIndia Department of Chemistry King Khalid UniversityAbha61413Saudi Arabia Department of Physics D.S.M's ArtsCommerce and Science CollegeJintur431509MaharashtraIndia

The present study is a systematic effort to investigate the structure-sensitive magnetic parameters of Ce^(3+) substituted Ba-Sr hexaferrite nanocrystals chemically formulated as Ba_(0.5)Sr_(0.5)Ce_(x)Fe_(12-x)O_(19) where x=0.0-0.2 with Δx=*** hexaferrite powders were prepared using the sol-gel self-ignition route and structurally characterized by means of powder X-ray diffraction and Fourier transform infrared *** creation of the M-type hexaferrite phase within the synthesized samples was revealed from the Rietveld refinement of the X-ray *** occurrence of a secondary phase of CeO_(2) was revealed within the hexaferrites for the substitution,x> *** refined X-ray diffraction data were utilized to compute the lattice parameters,X-ray density,and lattice parameter *** crystal structure plotted from the refined XRD data reveals the occupancy of the ions at different lattice *** XPS data of the hexaferrite were analyzed to confirm the oxidation states of the constituent *** nanocrystalline nature of the hexaferrites was revealed from the crystallite sizes calculated using Scherer's *** analysis of FTIR spectra confirms that only a fraction of Ce^(3+)accommodated in the lattice and the remaining Ce content reside in the form of the CeO_(2) *** morphology of the hexaferrites was analyzed from the FESEM profiles of the ferrite *** magnetic behavior study was performed by analyzing the Curie temperature,hysteresis loops,and hyperfine interactions by means of susceptibility,V.S.M,and Mossbauer spectroscopy,*** hexaferrites with increasing coercivity,decreasing saturation magnetization,and decreasing Curie temperature are reported in the *** substituted Ce^(3+)ions inhibit the grain growth and create lattice imperfections giving rise to hexaferrites with tuned magnetic parameters suitable for different applications.

关键词： Ba-Sr hexaferrite Ce^(3+)substitution XPS Saturation magnetization Coercivity M?ssbauer spectroscopy

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Evaluation of intersection conflict warning system at unsignalized intersections:A review

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Journal of Traffic and Transportation Engineering(English Edition) 2023年第4期10卷 530-547页

作者： Yashasvi Rachakonda Digvijay S.pawar Department of Civil Engineering Indian Institute of Technology HyderabadKandiMedak 502285India

Unsignalized intersections are identified as the critical locations due to higher number of road crashes at these *** primary causes of crashes at unsignalized intersections are limited sight distance,incorrect assessment of gaps by drivers on the minor road,and higher speeds of vehicles on the major *** an effort to improve safety and reduce the severity of crashes at unsignalized intersections,an intelligent transportation system(ITS)called the intersection conflict warning system(ICWS)has been *** ICWS consists of an activated warning sign and sensors that detect vehicles approaching the *** paper aims to summarize the performance evaluation of ICWS that has been published in the *** review commences with an overview of the purpose of designing and installing ICWS at unsignalized *** then discusses driving performance measures considered to evaluate the effectiveness of ICWS in three different environments,i.e.,real world,driving simulator,and simulations,and their results are *** paper also discusses the type of sensors used to detect vehicles approaching the intersection and their accuracy in vehicle *** results reveal that ICWS had substantially improved driver *** the presence of ICWS,drivers resulted in shorter reaction time,lower approach speed,increased critical gap acceptance,and reduction in *** improvement in the performance of ICWS can be achieved by educating drivers about the sign,maintaining system reliability,and further examining the effect of various traffic factors,driver factors,and environmental factors on *** findings of this study can help researchers and engineers to design a better ICWS that can greatly enhance driving performance and safety at unsignalized intersections.

关键词： Unsignalized intersection Intersection conflict warning system Collision avoidance system Driving simulator Driving performance Sensors

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Type 2 reaction associated sensorineural hearing loss in a drug resistant lepromatous leprosy patient: A case report

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Asian Pacific Journal of Tropical Medicine 2023年第9期16卷 425-427,I0001页

作者： Harpreet Singh pawar Itu Singh Harish Kumar Sagar ICMR-National JALMA Institute for Leprosy&Other Mycobacterial Diseases AgraIndia Stanley Browne Research Laboratory the Leprosy Mission(TLM)Community HospitalNew DelhiIndia

Rationale:Leprosy,a chronic granulomatous disease often present clinically as erythema nodosum leprosum,a type 2 *** involvement of cochlear part of audiovestibular system is a *** concerns:A 26-year-old male patient with lepromatous leprosy developed bilateral sensorineural hearing loss(SNHL)during type 2 reactional ***:Recurrent erythema nodosum leprosum in rifampicin-resistant lepromatous ***:Corticosteroids and second-line multidrug ***:The patient improved significantly and was further referred for management of psychosocial impact due to sensorineural hearing ***:The hearing impairment is a rare complication of type 2 *** patient with suspected cranial nerve involvement should essentially be screened by tuning fork tests for early detection of hearing impairment and offer timely intervention as *** high bacteriological index cases should be investigated for antimicrobial resistance in high endemic areas.

关键词： Leprosy reactions Erythema nodosum leprosum Sensorineural hearing loss Drug resistant leprosy

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Micro-simulation insights into the safety and operational benefits of autonomous vehicles

Journal of Intelligent and Connected Vehicles

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Journal of Intelligent and Connected Vehicles 2023年第4期6卷 202-210页

作者： Nalin Kumar Sekar Vinayak Malaghan Digvijay S.pawar School of Mechanical Engineering Vellore Institute of TechnologyVellore 632014India Department of Civil Structuraland Environmental EngineeringTrinity College DublinThe University of DublinDublin 2Ireland Department of Civil Engineering Indian Institute of Technology HyderabadKandi 502285India

Several past studies showed that Autonomous Vehicles(AVs)can reduce crash risk,stop-and-go traffic,and travel *** analyze the safety benefits of AVs,most of the researchers proposed algorithms and simulation-based ***,these studies have not assessed the safety benefits of AVs for different vehicle types under heterogeneous *** this opportunity,this study focuses on the benefits of AVs in terms of safety for different penetration rates under heterogeneous *** study considered three driving logics during peak hour conditions to assess the performance of AVs in terms of *** VISSIM,default driving behavior models for AVs were adopted to consider cautious and all-knowing driving logic and the third driving logic(Atkins)was modeled in VISSIM using parameters adopted from the previous *** this end,using VISSIM,the travel time output results were ***,using Surrogate Safety Assessment Model(SSAM),conflicts were extracted from output trajectory files(VISSIM).The results suggest that“cautious driving logic”reduced travel time and crash risk significantly when compared to the other two driving logics during peak hour ***,the statistical analysis clearly demonstrated that“cautious driving logic”differs significantly from the other two driving *** Market Penetration Rates(MPR)were 50%or greater,the“cautious driving logic”significantly outperforms the other two driving *** results highlight that adopting“cautious driving logic”at an expressway may significantly increase safety at higher AV penetration rates(above 50%).

关键词： automated vehicles driving behavior penetration rates driving logics and safety impacts

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Evaluating effectiveness and acceptance of advanced driving assistance systems using field operational test

Journal of Intelligent and Connected Vehicles

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Journal of Intelligent and Connected Vehicles 2023年第2期6卷 65-78页

作者： Kasi Nayana Badweeti Vinayak Devendra Malaghan Digvijay Sampatrao pawar Said Easa Department of Civil Engineering Indian Institute of Technology HyderabadKandiMedak502285India Department of Civil Engineering Pandit Deendayal Energy UniversityGandhinagarGujarat382355India Department of Civil Engineering Toronto Metropolitan UniversityTorontoONM5B 2K3Canada

A large number of reported road collisions are caused by driver inattention,and inappropriate driving *** study investigated the effectiveness and acceptance of Advanced Driving Assistance Systems(ADAS)for driver age groups,gender,occupation(professional/non-professional),and road type(expressway,urban roads,and semi-urban road)based on the Field Operational Test(FOT).The ADAS is provided with assistance features,such as Lane Departure Warning(LDW),Forward Collision Warning(FCW),and Traffic Speed Recognition Warning(TSRW).In total,the FOT involved 30 participants who drove the test vehicle twice(once in the stealth phase and once in the active phase).The FOT included three sections:expressway(20.60 km),urban road(7.2 km),and semi-urban road(13.35 km).A questionnaire was used to determine user acceptance of the ADAS *** addition,parametric and non-parametric statistical tests were carried out to determine ADAS's significant *** FOT results showed statistically significant differences in the LDW’s acceptance and effectiveness for gender,age group,occupation,and road type before and after exposure to *** participants showed significant lateral behavior improvement compared to female ***-aged drivers scored the highest acceptance score for the technology compared to middle and young-aged *** subjective ratings ranked the assistance features in descending order as TSRW,LDW,and *** study’s findings can support policy development and induce trust in the public for the technology adoption to improve road traffic safety.

关键词： driving assistance system forward collision lane departure warning traffic speed recognition road safety

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Concurrent laparoscopic management of giant adrenal myelolipoma and contralateral renal cell carcinoma

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Asian Journal of Urology 2022年第1期9卷 97-98页

作者： Tarun Jindal Pravin pawar Neeraj Subedi Department of Uro-oncology Tata Medical CentreKolkataIndia

Dear editor,Myelolipomas are uncommon,benign tumors of the adrenal gland that can occasionally attain a large *** tumors,very rarely,can occur along with renal cell carcinoma[1].We describe the first case of a giant right sided adrenal myelolipoma co-existent with a contralateral renal cell carcinoma,both of which could be operated laparoscopically in the same sitting.

关键词： adrenal renal laparoscopic

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Enhancing the Faradaic efficiency of solid oxide electrolysis cells: progress and perspective

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npj Computational Materials 2023年第1期9卷 803-816页

作者： Prashik S.Gaikwad Kunal Mondal Yun Kyung Shin Adri C.T.van Duin Gorakh pawar Department of Material Science and Manufacturing Engineering Idaho National LaboratoryIdaho FallsID 83415USA Department of Mechanical Engineering Pennsylvania State UniversityUniversity ParkPA 16802USA

To reduce global warming,many countries are shifting to sustainable energy production *** oxide electrolysis cells(SOECs)are being considered due to their high hydrogen generation ***,low faradaic efficiency in scaling SOEC technology affects costs and limits large-scale adoption of hydrogen as *** review covers SOECs’critical aspects:current state-of-the-art anode,cathode,and electrolyte materials,operational and materials parameters affecting faradaic efficiency,and computational modeling techniques to resolve bottlenecks affecting SOEC faradaic efficiency.

关键词： shifting electrolyte solid

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The Impingement Heat Transfer Data of Inclined Jet in Cooling Applications: A Review

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Journal of Thermal Science 2020年第1期29卷 1-12页

作者： pawar Shashikant PATEL Devendra Kumar SMEC Vellore Institute of Technology

On the impingement heat transfer data,the experimental studies of air and liquid jets impingement to the flat surfaces were collected and critically *** oblique impingements of both single circular and planar slot jets were considered in *** review focused on the surface where the jet impingement cooling technique was *** nozzle exit Reynolds numbers based on the hydraulic diameter varied in the range of 1,500–52,*** oblique angles relative to the plane surface and the dimensionless jet-to-plate spacing vary in the range of 15°–90°and 2–12 *** review suggested that the magnitude of maximum heat transfer shifted more for air jets compared with the liquid *** drop in the inclination angle and the jet-to-plate separation led to the increase in the asymmetry of heat transfer *** displacement of maximum Nusselt number(heat transfer)locations was found to be sensitive to the inclination angle and the smaller jet-to-plate ***,the Nusselt number correlations proposed by various researchers were discussed and compared with the results of the cited references.

关键词： heat and fluid flow jet impingement Nusselt number oblique angle

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