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Global Health Journal 2023年第2期7卷 78-86页

作者： Rea Pillai isha patel Rajesh Balkrishnan Department of Public Health Sciences University of Virginia School of MedicineP.0.Box 800717 CharlottesvilleVirginiaVA 22908USA

The purpose of this review is to identify prevalent trends and risk factors in depression,anxiety,and eating disorders in the adolescent population in the post coronavirus disease 2019(COvID-19)*** examined the literature published on adolescent mental health since the COVID-19 *** chose to summarize studies published from 2019 to 2022,using bibliographic search *** developed criteria for selecting articles for our review using diagnostic indicators and *** health conditions such as depression,anxiety and eating disorders are commonly prevalent in this population and have shown increasing rates in the past three *** risk factors associated with these diagnoses include reduction in social interaction,increased workloads,routine shifts,sleep quality,social media usage and parental ***,sleep cycles,physical activity,and social media should all be considered as a part of prevention in this *** that seem to be successful include maintaining social ties and avoiding negative social media usage with harmful *** global public awareness,as well as parental awareness,through media campaigns,is critical to slowing the spread of mental health challenges in adolescents and teenagers in the post-COvID-19 era.

关键词： Coronavirus disease 2019(COVID-19) Mental health Teenagers Impact of mental health

Investigation of potential Shiga toxin producing Escherichia coli(STEC)associated with a local foodborne outbreak using multidisciplinary approaches

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Food Science and Human Wellness 2016年第3期5卷 163-168页

作者： Kristen A.Lozinak Niketa Jani Jayanthi Gangiredla isha patel Christopher A.Elkins Zonglin Hu Prince A.Kassim Robert A.Myers Pongpan Laksanalamai Laboratories Administration Maryland Department of Health and Mental Hygiene1770 Ashland Ave.BaltimoreMD 21205United States Office of Applied Research and Safety Assessment Center for Food Safety and Applied NutritionUS Food and Drug Administration8301 Muirkirk Rd.LaurelMD 20708United States Winchester Engineering and Analytical Center Office of Regulatory AffairsUS Food and Drug Administration109 Holton St.WinchesterMA 01890United States

Shiga toxin producing Escherichia coli(STEC)outbreak is a public health concern as it can potentially cause a variety of clinical manifestations including diarrhea,hemorrhagic colitis and hemolytic uremic syndrome(HUS).However *** are generally innocuous commensal organisms,and there is a need to discriminate pathogenic from non-pathogenic isolates rapidly and *** this study,we have used standard culture based methods and advanced molecular approaches to characterize *** in food in a local outbreak *** show that the application of DNA based detection methods including real-time PCR and DNA microarray along with a traditional culture method can identify the organism implicated in an outbreak at the strain level for pathogenic potential.

关键词： STEC diarrhea culture

A model for virtual network embedding across multiple infrastructure providers using genetic algorithm

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Science China(Information Sciences) 2017年第4期60卷 101-112页

作者： isha PATHAK Deo Prakash VIDYARTHI School of Computer and Systems Sciences Jawaharlal Nehru University

Network virtualization is an important aspect in cloud computing, where network is assumed to be consisting of infinite amount of nodes and links. The substrate network(physical network), has limited capacity and so virtual network embedding on the substrate network becomes a problem. Virtual network embedding is a computationally hard problem, considering various constraints on nodes and links. The proposed work applies Genetic Algorithm for the virtual network embedding problem for mapping multiple virtual network requests on infrastructure providers managing multiple substrate networks. Performance evaluation, through simulations,indicates that the proposed model preforms better for the performance metrics such as infrastructure provider revenue, acceptance ratio and node and link utilization in comparison to few other contemporary mapping models.

关键词： network virtualization virtual network embedding substrate network NP-hard genetic algorithm

TLERAD: Transfer Learning for Enhanced Ransomware Attack Detection

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Computers, Materials & Continua 2024年第11期81卷 2791-2818页

作者： isha Sood Varsha Sharm a School of Information Technology Rajiv Gandhi Proudyogiki VishwavidyalayaBhopal462033India

Ransomware has emerged as a critical cybersecurity threat,characterized by its ability to encrypt user data or lock devices,demanding ransom for their *** ransomware detection methods face limitations due to their assumption of similar data distributions between training and testing phases,rendering them less effective against evolving ransomware *** paper introduces TLERAD(Transfer Learning for Enhanced Ransomware Attack Detection),a novel approach that leverages unsupervised transfer learning and co-clustering techniques to bridge the gap between source and target domains,enabling robust detection of both known and unknown ransomware *** proposed method achieves high detection accuracy,with an AUC of 0.98 for known ransomware and 0.93 for unknown ransomware,significantly outperforming baseline *** experiments demonstrate TLERAD’s effectiveness in real-world scenarios,highlighting its adapt-ability to the rapidly evolving ransomware *** paper also discusses future directions for enhancing TLERAD,including real-time adaptation,integration with lightweight and post-quantum cryptography,and the incorporation of explainable AI techniques.

关键词： Ransomware detection transfer learning unsupervised learning co-clustering cybersecurity machine learning lightweight cryptography post-quantum cryptography explainable AI TLERAD

Friction and wear characteristics of robust carbon–carbon composites developed solely from petroleum pitch without reimpregnation

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Friction 2020年第5期8卷 945-956页

作者： Shishobhan SHARMA Bharat patel Rasmika patel Department of Materials Science Sardar Patel UniversityVallabh VidyanagarAnandGujarat 380012India Kana Advanced Composites Industry PORVadodaraGujarat 380012India

Friction and wear characteristics correlating the fiber reinforcement percentage of carbon–carbon (C/C) composites solely developed from petroleum pitch matrices were investigated. This study exhibits the tribo-characteristics of C/C composites developed in a single-step carbonization process for varying loads for the first time without a reimpregnation process. A pin-on-disc tribometer with a sliding speed of 0.5 m/s and loads of 5, 10, and 20 N with a flat tool grade stainless steel pin as a static partner was employed. Further, polarized light optical and scanning electron microscopes (SEM) were utilized for a morphological analysis. Elastic modulus and strength were determined by a compression test. A result analysis is conducted to analyze sliding wear accompanied with minor abrasion. The composites with a high percentage of reinforcement exhibit credible wear resistance and mechanical robustness.

关键词： carbon sliding wear microstructure composite friction pitch characterization

Role of inter-particle collision on solids acceleration in riser

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Particuology 2010年第1期8卷 13-18页

作者： Rajesh patel Department of Mechanical Engineering New Jersey Institute of Technology

Collision among particles plays a significant role in governing the structure of gas-solids flow in a riser, especially in the dense and acceleration region. The inter-particle collision is the major cause not only for the kinetic energy dissipation （in terms of additional pressure drop beyond the solids hold-up） but also for the control of solids acceleration （in terms of a balancing force to prevent a free acceleration of solids）. A neglect of the balancing force of inter-particle collision against the hydrodynamic force in the solids momentum equation would simply overestimate the solids acceleration or concentration while underestimate the axial gradient of pressure along the riser by a large margin, typically by up to two orders of magnitude. This paper aims to illustrate the importance of the collision on the characteristic of the gas-solids riser flow. Our analysis shows that the collision force should be of the same order of magnitude as that of the drag force in the dense and acceleration region, which can be far beyond that of gravitational force on solids. A simple formulation of the collision force is therefore proposed to bear a similar format of drag force, with regard to the dependence upon local solids *** the inclusion of the proposed correlation of collision force in the solids momentum equation, our model would be able to yield reasonable phase distributions of gas-solid flows, which can be validated, in a bulk range, against available measurements of solids volume fraction and axial gradient of pressure.

关键词： Gas-solids flow Fluidization Solid acceleration Energy dissipation

FEM based Electromagnetic Signature Analysis of Winding Inter-turn Short-Circuit Fault in Inverter fed Induction Motor

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CES Transactions on Electrical Machines and Systems 2019年第3期3卷 309-315页

作者： Praveen Kumar N isha T B Department of Electrical and Electronics Engineering Amrita School of EngineeringCoimbatoreAmrita Vishwa VidyapeethamIndia

The intent of this paper is to analyze the electromagnetic signature of stator winding inter-turn short-circuit fault in a closed loop speed controlled Induction Motor(IM)employing Finite Element *** winding short-circuit nearly covers 21%of faults in *** the inter-turn fault at an incipient stage is one of the challenging task in the area of fault detection of IM to prevent crucial damages in industrial *** detecting the faults in inverter fed IM under variable speed applications under varying load is one of the major issues in industrial *** the signatures of electromagnetic field contains the entire data in association with the location of rotor,stator and mechanical parts of the motor,a regular monitoring of fields in the airgap can be used to diagnose the inter-turn fault in the stator winding of *** this direction,an IM is modeled with several inter-turn fault severities like 30 turns,15 turns,5 turns&1 turn short using ANSYS Maxwell FEA tool and coupled with ANSYS Simplorer for loading *** PWM inverter with closed loop speed controlled strategy is implemented in Matlab Simulink and co-simulated with ANSYS Simplorer to integrate all the components in one common simulation platform environment for accurate design&analysis for realistic *** electromagnetic variables like flux density,flux lines and airgap flux density distribution over the machine are *** spatial FFT spectrum of radial component of flux density in the airgap contains the information related to the diagnosis of inter-turn fault at the incipient stage.

关键词： Electromagnetic fields finite element analysis inter-turn fault PWM inverter radial flux density.

Bio-Nanocarriers for Lung Cancer Management:Befriending the Barriers

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Nano-Micro Letters 2021年第9期13卷 238-291页

作者： Shruti Rawal Mayur patel Department of Pharmaceutics Institute of PharmacyNirma UniversitySG HighwayChharodiAhmedabadGujarat 382481India

ABSTRACT Lung cancer is a complex thoracic malignancy developing consequential to aberrations in a myriad of molecular and biomolecular signaling *** is one of the most lethal forms of cancers accounting to almost 1.8 million new annual incidences,bearing overall mortality to incidence ratio of *** dismal prognostic scenario at advanced stages of the disease and metastatic/resistant tumor cell populations stresses the requisite of advanced translational interdisciplinary interventions such as *** review article deliberates insights and apprehensions on the recent prologue of nanobioengineering and bionanotechnology as an approach for the clinical management of lung *** role of nanobioengineered(bio-nano)tools like bio-nanocarriers and nanobiodevices in secondary prophylaxis,diagnosis,therapeutics,and theranostics for lung cancer management has been ***,bioinspired,and biomimetic bio-nanotools of considerate translational value have been *** on existent oncostrategies,their critical comparison with bio-nanocarriers,and issues hampering their clinical bench side to bed transformation have also been summarized.

关键词： Biomimetic nanoparticles Exosomes Circulating tumor cells Mesenchymal stem cells Theranostics

Primary implantation of non-valved glaucoma-drainage-device in sulcus in iridocorneal endothelial syndrome

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International Journal of Ophthalmology(English edition) 2019年第11期12卷 1809-1811页

作者： Vanita Pathak Ray Divya P Rao isha Gulati Centre For Sight Banjara HillsHyderabad 500034India L V Prasad Eye Institute Banjara HillsHyderabad 500034India

Dear Editor,I ridocorneal endothelial syndrome(ICE)is a rare,usually unilateral,acquired condition,hypothesized to be secondary to a viral etiology[1].It affects females more often than males and comprises of three distinct clinical types related to endothelial proliferation and its structural *** of endothelium over the iridocorneal angle leads to progressive secondary angle closure and that over the iris leads to typical changes of polycoria and *** clinical entities included in the syndrome are Chandlers(predominant corneal involvement),progressive iris atrophy(predominant iris involvement with polycoria and‘holes’)and Cogan Reese(iris nodules with loss of stromal features).No matter what the clinical type,it is a progressive condition and controlling intraocular pressure(IOP)and maintaining corneal clarity in the long term is usually a challenge.

关键词： corneal involvement predominant

Renewable hydrogen production from butanol:a review

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Clean Energy 2017年第1期1卷 90-101页

作者： Ronak patel Sanjay patel Chemical Engineering Department Institute of TechnologyNirma UniversityAhmedabadGujarat 382481India Chemical Engineering Department L.D.College of EngineeringAhmedabadGujarat 380015India

Hydrogen production from butanol is a promising alternative when it is obtained from bio-butanol or bio-oil due to the higher hydrogen content compared to other oxygenates such as methanol,ethanol or *** and operating conditions play a crucial role in hydrogen *** and Rh are metals mainly used for butanol steam reforming,oxidative steam reforming and partial *** such as Cu can improve catalytic activity in many ***,support-metal interaction and catalyst preparation technique also play a decisive role in the stability and hydrogen production capacity of *** reforming technique as an option is more frequently researched due to higher hydrogen production capability in comparison to other thermochemical techniques despite its endothermic *** use of the oxidative steam reforming and partial oxidation has the advantages of requiring less energy and longer stability of ***,the hydrogen yield is *** article brings together and examines the latest research on hydrogen production from butanol via steam reforming,oxidative steam reforming and partial oxidation *** addition,the review examines a few thermodynamic studies based on sorption-enhanced steam reforming and dry reforming where there is potential for hydrogen extraction.

关键词： butanol hydrogen production steam reforming oxidative steam reforming partial oxidation