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Study of the Diffusion Behavior of Seawater Absorption in Multi-Walled Carbon Nanotubes/Halloysite Nanotubes Hybrid Nanofillers Modified Epoxy-Based Glass/Carbon Fiber Composites

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Modern Mechanical Engineering 2024年第2期14卷 25-38页

作者： Praful Choudhari Vivek kulkarni Sanjeevakumar Khandal Department of Mechanical Engineering Sanjay Ghodawat University Atigre Kolhapur Maharashtra India

In the maritime industry, cost-effective and lightweight Fiber Reinforced Polymer (FRP) composites offer excellent mechanical properties, design flexibility, and corrosion resistance. However, their reliability in harsh seawater conditions is a concern. Researchers address this by exploring three approaches: coating fiber surfaces, hybridizing fibers and matrices with or without nanofillers, and interply rearrangement. This study focuses on evaluating the synergistic effects of interply rearrangement of glass/carbon fibers and hybrid nanofillers, specifically Multi-walled carbon nanotubes (MWCNT) and Halloysite nanotubes (HNT). The aim is to enhance impact properties by minimizing moisture absorption. Hybrid nanocomposites with equal-weight proportions of two nanofillers: 0 wt.%, 1 wt.%, and 2 wt.% were exposed to seawater for 90 days. Experimental data was subjected to modelling through the application of Predictive Fick’s Law. The study found that the hybrid composite containing 2 wt.% hybrid nanofillers exhibited a 22.10% increase in impact performance compared to non-modified counterparts. After 90 days of seawater aging, the material exhibited enhanced resistance to moisture absorption (15.74%) and minimal reduction in impact strength (8.52%) compared to its dry strength, with lower diffusion coefficients.

关键词： Glass/Carbon Fiber Hybrid Composites Multiwall Carbon Nanotubes (MWCNTs) Halloysite Nanotubes (HNTs) Diffusion Behaviour Impact Properties Seawater Aging

Effect of KiwiBiotic on functional constipation and related symptoms:A prospective,single-center,randomized,comparative,crossover study

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World Journal of Gastrointestinal Pharmacology and Therapeutics 2024年第5期15卷 40-49页

作者： Ashwin D Porwal Paresh M Gandhi Deepak K kulkarni Gajanan B Bhagwat Pravin P Kamble Department of Proctology Healing Hands ClinicMahārāshtraPune 411001India R&D Center Healing Hands and Herbs Pvt.Ltd.MahārāshtraPune 411002India

BACKGROUND Functional constipation(FC)is a common gastrointestinal disorder characterized by abdominal pain and bloating,which can greatly affect the quality of life of *** treatments often yield suboptimal results,leading to the exploration of alternative therapeutic *** To evaluate the efficacy of KiwiBiotic in the management of FC and related *** This prospective,interventional,single-center,crossover study compared the safety and effectiveness of KiwiBiotic®vs psyllium husk in managing FC,abdominal pain,and *** diagnosed with FC were randomly assigned to receive KiwiBiotic or psyllium husk during the two treatment periods,with a 14-day washout period between *** Seventy participants were enrolled,32 of whom received KiwiBiotic followed by psyllium husk,and 33 received *** showed superiority over psyllium husk in alleviating abdominal pain and bloating,as evidenced by significantly lower mean ***,KiwiBiotic resulted in more than 90.0%of patients experiencing relief from various constipation symptoms,while psyllium husk showed comparatively lower *** KiwiBiotic is an effective treatment option for FC,abdominal pain,and bloating,highlighting its potential as a promising alternative therapy for patients with FC and its associated symptoms.

关键词： KiwiBiotic Psyllium husk Constipation Abdominal pain Bloating

Formulation development of multi unit particulate system(MUPS) for anti-diabetic drugs

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Asian Journal of Pharmaceutical Sciences 2016年第1期11卷 77-78页

作者： Surendra Agrawal ketaki Joshi Ram Gaud SPPSPTM SVKMs NMIMS Vile Parle (W)

Metformin hydrochloride and sitagliptin phosphate is the common combination among diabetic *** dosage forms cannot avoid the dose dumping which leads to the complication such as lactic acidosis,gastrointestinal complication,and severe *** hydrochloride has a very short half-life,i.e.4 hrs,and thus fails to give action for the long *** leads to the increase number of dosings per ***-unit formulations contain the active ingredient within the single tablet or capsule,whereasmultiple-unit dosage forms comprise a number of discrete particles that are combined into one dosage unit.

关键词： Sitagliptin Metformin sustain release matrix pellets MUPs

Settling and spreading behaviour of particle clusters in quiescent liquids in confined vessels

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Particuology 2023年第12期83卷 91-100页

作者： Sayan Pal Amol A.kulkarni Chemical Engineering&Process Development Division CSIR-National Chemical LaboratoryPune411008India Academy of Scientific and Innovative Research(AcSIR) Ghaziabad 201002India University College London Torrington PlaceLondonWC1E 7JEUK

Here we report experiments on particle cluster settling at high Reynolds number in quiescent liquid contained in a *** particles were observed to spread at the vessel bottom surface in a near-circular annular shape after settling irrespective of the shape of the vessel cross-section and particle shape,size,and *** of different parameters such as mass,type and aspect ratio of the particles,height,and viscosity of liquid was investigated on spreading *** of the hemispherical bottom cap of the cluster that bounces upon hitting the vessel bottom surface was found to be responsible for the final circular annular shape of the settled *** leakage from the cluster was seen in the form of a *** the liquid having viscosity beyond 100 cP,cluster breakage was observed that resulted in hindered settling and asymmetric shapes of finally settled *** observations are useful to understand the overall area over which settling and spreading of such clusters can be observed.

关键词： Particle cluster Temporal evolution Settling Spreading

Determining Potential Passive Islanding Detection Indicators for Single-point Single Inverter,Single-point Multi-inverter and Multi-point Multi-inverter Scenarios

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CSEE Journal of Power and Energy Systems 2022年第3期8卷 696-709页

作者： Nitin Kumar kulkarni Mohan Khedkar Department of Electrical Engineering Visvesvaraya National Institute of TechnologyNagpurIndia

Distributed Generation(DG)sources,predominantly renewable energy-based,such as solar photovoltaic and wind energy sources,have significantly penetrated into power system *** high penetration of DG sources may lead to the formation of unintentional islands,which is hazardous to both the equipment and personnel,if *** this paper,46 passive parameters are considered to find out which candidate(s)are promising for detecting sustained unintentional islands and avoid false DG *** 46 parameters are derived from point of common coupling(PCC)voltage,DG output current,frequency,power factor angle,active and reactive *** these parameters are tested on standard IEEE 13 and 34 bus distribution networks,integrated with inverter-interfaced DGs at different locations for different penetration levels in the MATLAB/SIMULINK *** parameters are tested for different islanding events(comprising of various local loads,such as conventional parallel RLC resonant load,R,RC,and RL loads)and for different non-islanding *** parameters are then ranked accordingly by a suitable averaging approach based performance ranking *** this analysis,the best candidates are obtained for detecting inverter DG islands at single-point(or single PCC)locations and multi-point(or multiple PCCs)*** best passive candidates are obtained for different island scenarios from which a set of promising islanding detection indicators are proposed.

关键词： Averaging approach inverter DG point of common coupling(PCC) passive parameters test system

Study of the Diffusion Behavior of Seawater Absorption in Multi-Walled Carbon Nanotubes/Halloysite Nanotubes Hybrid Nanofillers Modified Epoxy-Based Glass/Carbon Fiber Composites

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TRPM8 and prostate cancer:to overexpress or repress,that is the question-comment on“Effects of TRPM8 on proliferation and motility of prostate cancer PC-3 cells”by Yang ZH et *** Asian Journal of Andrology

Modern Mechanical Engineering（现代机械工程） 2024年第2期 25页

作者： Praful Choudhari Vivek kulkarni Sanjeevakumar Khandal

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Asian Journal of Andrology 2009年第2期11卷 150-151页

作者： Prakash kulkarni James Buchanan Brady Urological Institute Department of UrologyJohns Hopkins University School of medicineBaltimoreMD 21287USA

The progression of cells from a normal differentiated state in which the rates of proliferation and apoptosis are in check,to a tumorigenic and metastatic state where these rates are imbalanced,likely involves the accumulation of mutations in multiple genes,and the evolution and clonal selection of more aggressive *** events are associated with changes in the expression of numerous gene products including the transient receptor potential(TRP)proteins.

关键词： TRPM8 al. motility

ntrinsically disordered proteins and prostate ancer： pouring new wine in an old bottle

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Asian Journal of Andrology 2016年第5期18卷 659-661页

作者： Prakash kulkarni ProteinBiophysics&StructuralBiologyLaboratory InstituteforBioscienceandBiotechnologyResearchUniversityofMarylandRockvilleMD20850USA

An inconvenient truth in urology is that .despite decades of intense research,prostate cancer （PCa） has remained one of the most prevalent cancers and leading cause of cancer-related deaths in men, particularly in t... 详细信息

关键词： ACTIVE SURVEILLANCE ANDROGEN RECEPTOR PROMISCUITY NETWORKS

Influence of thickness and projectile shape on penetration resistance of the compliant composite

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Defence Technology（防务技术） 2021年第1期17卷 245-256页

作者： Vishwas Mahesh Sharnappa Joladarashi Satyabodh M.kulkarni Department of Mechanical Engineering National Institute of Technology Karnataka SurathkalMangalore 575025India Department of Industrial Engineering and Management Siddaganga Institute of TechnologyTumakuru 572103KarnatakaIndia

The present study deals with development of conceptual proof for jute rubber based flexible composite block to completely arrest the projectile impacting the target at high velocity impact of 400 m/s through numerical simulation approach using finite element(FE)*** proposed flexible composite blocks of repeating jute/rubber/jute(JRJ)units are modelled with varying thickness from 30 mm to 120 mm in increments of 30 mm and impacted by flat(F),ogival(O)and hemispherical(HS)shaped *** the considered projectiles are impacted with proposed flexible composite blocks of different thicknesses and the penetration behaviour of the projectile in each case is *** penetration depth of the projectile in case of partially penetrated cases are considered and the effect of thickness and projectile shape on percentage of penetration depth is statistically analyzed using Taguchi’s design of experiments(DOE).Results reveal that the though proposed flexible composite block with thickness of 90 mm is just sufficient to arrest the complete penetration of the projectile,considering the safety issues,it is recommended to use the flexible composite with thickness of 120 *** nature of damage caused by the projectile in the flexible composite is also *** studies show that thickness of the block plays a prominent role in determining the damage resistance of the flexible composite.

关键词： Flexible composite blocks Jute Rubber High velocity Projectile shapes Thickness Damage resistance Penetration depth