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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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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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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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Proline and Glutamine Improve in vitro Callus Induction and Subsequent Shooting in Rice

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Rice science 2015年第6期22卷 283-289页

作者： Bhausaheb pawar Prashant KALE Jyoti BAHURUPE Ashok JADHAV Anil KALE Sharad pawar State Level Biotechnology Centre Mahatma Phule Agricultural University

This study was conducted to evaluate the effects of proline and glutamine on in vitro callus induction and subsequent regeneration and to develop a reproducible and highly efficient plant regeneration protocol in four rice genotypes, viz. Pawana, Jaya, Indrayani and Ambemohar. Considerable variation in response to plant growth regulators and amino acid supplements used was observed in all the four genotypes. Medium supplemented with proline and glutamine was shown to be superior to medium without proline and glutamine. The best callusing from mature embryo was observed on Murashige and Skoog （MS） medium supplemented with 2.0 mg/L 2,4-dichlorophenoxyacetic acid （2,4-D）, 500 mg/L proline and 500 mg/L glutamine. Shoot induction was higher in the callus obtained from medium supplemented with 500 mg/L proline and 500 mg/L glutamine. The highest shoot regeneration frequency （83.2%） was observed on MS medium with 2.0 mg/L benzylaminopurine, 0.5 mg/L 1-naphthaleneacetic acid, 500 mg/L proline, and 500 mg/L glutamine in the callus obtained from MS medium supplemented with 2.0 mg/L 2,4-D, 500 mg/L proline and 500 mg/L glutamine. Among the four genotypes, Pawana has the highest regeneration efficiency （83.2%）, whereas the regeneration efficiency of the rest three rice genotypes was in the range of 32.0% to 72.3%. This optimized regeneration protocol can be efficiently used for Agrobacterium mediated genetic transformation in rice.

关键词： callus induction glutamine proline rice Agrobacterium mediated genetic transformation 2,4-dichlorophenoxyacetic acid Murashige and Skoog medium

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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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Genetic Algorithm with Variable Length Chromosomes for Network Intrusion Detection

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International Journal of Automation and computing 2015年第3期12卷 337-342页

作者： Sunil Nilkanth pawar Rajankumar Sadashivrao Bichkar Jawaharlal Nehru Engineering College G.H.Raisoni College of Engineering & Management

Genetic algorithm(GA) has received significant attention for the design and implementation of intrusion detection systems. In this paper, it is proposed to use variable length chromosomes(VLCs) in a GA-based network intrusion detection *** chromosomes with relevant features are used for rule generation. An effective fitness function is used to define the fitness of each rule. Each chromosome will have one or more rules in it. As each chromosome is a complete solution to the problem, fewer chromosomes are sufficient for effective intrusion detection. This reduces the computational time. The proposed approach is tested using Defense Advanced Research Project Agency(DARPA) 1998 data. The experimental results show that the proposed approach is efficient in network intrusion detection.

关键词： Genetic algorithms intrusion detection variable length chromosome network security evolutionary optimization.

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Interaction of repaglinide with bovine serum albumin:Spectroscopic and molecular docking approaches

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Journal of Pharmaceutical Analysis 2019年第4期9卷 274-283页

作者： Suma K.pawar Seetharamappa Jaldappagari Department of Chemistry Karnatak University

Repaglinide (RPG) regulates the amount of glucose by stimulating the pancreas to release insulin in the blood. In view of its biological importance, we have examined the interaction between RPG and a model protein, bovine serum albumin (BSA) employing various spectroscopic, electrochemical and molecular docking methods. Fluorescence spectra of BSA were recorded in the presence and absence of RPG in phosphate buffer of pH 7.4. Fluorescence intensity of BSA was decreased upon the addition of increased concentrations of RPG, indicating the interaction between RPG and BSA. Stern-Volmer quenching analysis results revealed that RPG quenched the intensity of BSA through dynamic quenching mechanism. This was further confirmed from the time-resolved fluorescence measurements. The binding constant as calculated from the spectroscopic and voltammetric results was observed to be in the order of 104M-1 at 298 K, suggesting the moderate binding affinity between RPG and BSA. Competitive experimental results revealed that the primary binding site for RPG on BSA was site II. Absorption and circular dichroism studies indicated the changes in the secondary structure of BSA upon its interaction with RPG. Molecular simulation studies pointed out that RPG was bound to BSA in the hydrophobic pocket of site II.

关键词： BSA-RPG interaction Spectroscopic investigation Molecular docking

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Effect of wood dust type on mechanical properties, wear behavior, biodegradability, and resistance to natural weathering of wood-plastic composites

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Frontiers of Structural and Civil Engineering 2019年第6期13卷 1446-1462页

作者： Sawan KUMAR Ajitanshu VEDRTNAM S.J.pawar Department of Applied Mechanics Motilal Nehru National Institute of Technology AllahabadAllahabadUP 211004India Department of Mechanical Engineering Invertis UniversityBareillyUP 243001India Vinoba Bhave Research Institute AllahabadUP 211004India Translational Research Centre Institute of Advanced MaterialsVBRIL inkoping 58330Sweden

The present work reports the inclusion of different proportions of Mango/Sheesham/Mahogany/Babool dust to polypropylene for improving mechanical,wear behavior and biodegradability of wood-plastic composite(WPC).The wood dust(10%,15%,20%by weight)was mixed with polypropylene granules and WPCs were prepared using an injection molding *** mechanical,wear,and morphological characterizations of fabricated WPCs were carried out using standard ASTM methods,pin on disk apparatus,and scanning electron microscopy(SEM),***,the biodegradability and resistance to natural weathering of WPCs were evaluated following ASTM D5338-11 and ASTM D1435-99,*** WPCs consisting ofBabool and Sheesham dust were having superior mechanical properties whereas the WPCs consisting of Mango and Mahogany were more wear *** was found that increasing wood powder proportion results in higher Young's modulus,lesser wear rate,and decreased stress at *** WPCs made of Sheesham dust were least *** was noticed that the biodegradability corresponds with resistance to natural weathering;more biodegradable WPCs were having the lesser resistance to natural weathering.

关键词： wood-plastic composites mechanical testing wear biodegradability injection molding weathering

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High viscosity of ionic liquids causes rate retardation of Diels-Alder reactions

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Science China Chemistry 2012年第8期55卷 1633-1637页

作者： KUMAR Anil pawar Sanjay S. Physical Chemistry Division National Chemical Laboratory

Second order rate constants, ka have been determined for three bi-molecular Diels-Alder reactions to demonstrate that the high viscosity of ionic liquids can be a detrimental property in carrying out Diels-Alder reactions, if ionic liquids are employed as solvent media. It is possible to enhance the reaction rates of the reaction if a co-solvent is mixed in pure ionic liquid used as a solvent.

关键词： ionic liquids viscosity kinetics Diels.Alder reactions

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Analyzing variations in spatial critical gaps at two-way stop controlled intersections using parametric and non-parametric techniques

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Journal of Traffic and Transportation Engineering(English Edition) 2021年第1期8卷 129-138页

作者： Digvijay S.pawar Gopal R.Patil Department of Civil Engineering Indian Institute of Technology HyderabadKandi 502285India Department of Civil Engineering Indian Institute of Technology BombayPowai 400076India

At two-way stop controlled(TWSC)intersections drivers on minor stream are generally at risk because of the difficulty in judging safe gap between major stream *** misjudgment by the driver while choosing gap may result in a collision with major stream *** paper provides important insights for determining and analyzing spatial critical gaps of drivers at high speed and medium speed TWSC *** critical gap line(CGL)fitted for the accepted and rejected gaps using parametric(binary logit model-BLM)and non-parametric(support vector machines-SVM)techniques gives critical gap values at 15 th,50 th and 85 th percentile *** evaluation of spatial critical gap with respect to major road vehicle(conflicting vehicle)speed makes it easier to understand the impact of variation in speed on spatial gaps accepted by the drivers on the minor *** logit models developed revealed that the probability of accepting gap decreases with increase in the speed of the conflicting vehicle and it increases with increase in the distance of conflicting *** spatial critical gaps estimated using support vector machines were found in close approximation with those estimated using binary logit *** study results showed that SVMs have very good potential to be an alternative tool for the estimation of driver's critical *** spatial critical gaps corresponding to 15 th,50 th and 85 th percentile speeds for medium speed intersections were 32 m,38 m and 46 m respectively and for high speed intersections these values were 64 m,76 m and 104 m *** increase in the magnitude of gap value with respect to the percentile speed clearly states the effect of speed on spatial *** insights from the study can be used to suggest various measures to improve the safety of crossing drivers at uncontrolled intersections.

关键词： Traffic engineering Spatial critical gaps Uncontrolled intersections Logit model SVM Driver behavior

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