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Tribological response of waste tire rubber as micro-fillers in automotive brake lining materials

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Friction 2020年第6期8卷 1153-1168页

作者： anand PAI Sayikumar SUBRAMANIAN Tribhuvan SOOD Department of Aeronautical and Automobile Engineering Manipal Institute of TechnologyManipal Academy of Higher Education ManipalKarnataka 576104lIndia Cranfield University CranfieldMilton KeynesBedfordshire MK430ALUK

Elastomeric materials show promise as potential micro-fillers in brake *** can provide vibration damping and acoustic advantages in intermittent and abrupt impact applications such as *** elastomeric material can be salvaged from non-biodegradable automotive tires,thereby providing an opportunity to reuse materials that will otherwise be discarded in *** tribological and thermomechanical performances of the waste tire rubber were assessed to determine their potential for use as micro-fillers in the brake linings of commercial vehicles with a gross weight less than 16 ***,the brake lining materials were fabricated with fine waste tire rubber particulates(WTRPs)as the micro-fillers,phenolic-R resin as the binder,graphite as the dry lubricant,laterite as the co-filler,and coconut coir for natural fiber *** effects of increasing the WTRP weight fraction on the brake response of the linings were analyzed,and the different compositions were benchmarked against a commercial brake *** characterization comprising compressive strength,hardness,density,and porosity studies were carried *** and wear characteristics of the linings were analyzed using a rotary tribometer with simultaneous thermal *** manufactured lining with 15 wt%WTRPs exhibited a mean friction coefficient of^0.38,a specific volumetric loss rate of 1,662μm3/(N?m),and improved thermal *** optical microscopy and scanning electron microscopy(SEM)with energy dispersive spectroscopy(EDS),wear surface morphology studies compared the relative development of primary and secondary plateaus and revealed the redistribution of wear debris,leading to the stability of the coefficient of friction.

关键词： automotive brakes elastomers graphite energy dispersive spectroscopy(EDS) scanning electron microscopy(SEM) wear mechanisms

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

Coordination Nanoparticles Formed by Fluorescent 2-Aminopurine and Au^(3+): Stability and Nanozyme Activities

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Journal of Analysis and Testing 2019年第3期3卷 219-227页

作者： anand Lopez Juewen Liu Department of Chemistry Waterloo Institute for NanotechnologyUniversity of WaterlooWaterlooON N2L 3G1Canada

Nucleobase-metal coordination polymers(CPs)have been the target of much recent research owing their interesting properties and ease of *** nucleobases are nonfluorescent,and 2-aminopurine(2AP)is a strongly fluorescent analog of *** this work,we compared the CPs formed by adenine,2AP and adenosine with various *** Au3+produced CP nanoparticles with both adenine and *** products were similar in terms of size,suggesting that the position of the exocyclic amine is unimportant for coordination with *** 2AP is fluorescent,the dissolution of the nanoparticles in the presence of various chemicals including KCN,GSH,iodide,bromide and chloride,was studied and compared to fluorescent adenosine-Au *** appears that the 2AP CP was more robust than the adenosine one since even chloride can quench the fluorescence of the adenosine/Au ***,the adenine and 2AP nanoparticles exhibited weak oxidase-like activity for oxidation of TMB possibly by the Au3+exposed on the surface.

关键词： Coordination nanoparticles Nucleotides Gold Nanozymes

Assessment of correlation between serum titers of hepatitis c virus and severity of liver disease

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World Journal of Gastroenterology 2004年第16期10卷 2409-2411页

作者： BhupinderS.anand MariaVelez Department of Medicine V.A.Medical Center and Baylor College of MedicineHoustonTexas 77030USA

AIM:The significance of hepatitis C virus (HCV) serum titers has been examined in several clinical situations. There is much evidence that patients with a lower viral load have better response rates to anti-viral therapy compared to those with higher ***,a direct association has been observed between serum titers of HCV and transmission rates of the *** aim of the present study was to determine if there was any correlation between HCV viral load and the severity of liver disease. METHODS:Fifty patients with HCV infection were included in the *** comprised of 34 subjects with a history of alcohol use and 16 *** serum HCV RNA assay was carried out using the branched DNA (bDNA) *** regression analysis was performed between serum viral titers and liver *** addition,for the purpose of comparison,the subjects were divided into two groups:those with low viral liters (≤50 genome mEq/mL) and high titers (>50 mEq/mL). RESULTS:All subjects were men,with a mean±SD age of 47±7.8 *** mean HCV RNA level in the blood was 76.3×10~5±109.1 genome equivalents/*** was no correlation between HCV RNA levels and age of the patients (r=0.181),and the history or amount (g/d) of alcohol consumption (r=0.07).Furthermore,no correlation was observed between serum HCV RNA levels and the severity of liver disease as judged by the values of serum albumin (r=0.175),bilirubin (r=0.217),ALT (r=0.06) and AST (r=0.004) ***,no significant difference was observed between patients with low viral titers and high liters with respect to any of the parameters. CONCLUSION:Our results indicate that the severity of liver disease is independent of serum levels of hepatitis C *** findings are important since they have a direct impact on the current debate regarding the role of direct cytopathic effect of hepatitis C virus versus immune-mediated injury in the pathogenesis of HCV-related liver damage.

关键词： Adult Alanine Transaminase Alcohol Drinking Aspartate Aminotransferases Diagnosis, Differential Genome, Viral Hepacivirus purification Hepatitis C Humans Liver Diseases Liver Function Tests Middle Aged RNA, Viral Regression Analysis Severity of Illness Index Viral Load

Self-renewal of peripheral nerve resident macrophage:does it represent a unique activation status?

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Neural Regeneration Research 2022年第5期17卷 999-1000页

作者： Maricris Bautista anand Krishnan Department of Anatomy Physiologyand PharmacologyCollege of MedicineUniversity of SaskatchewanSaskatoonSKCanada Cameco MS Neuroscience Research Centre(CMSNRC) University of SaskatchewanSaskatoonSKCanada

Macrophages are immune cells of myeloid origin and are present in almost all *** perform a wide variety of functions contributing to tissue development,homeostasis,pathogenesis,and repair(Wynn et al.,2013).Strikingly,macrophages residing at different tissues,and at different compartments of an individual tissue,demonstrate enormously diverse molecular characteristics(Gordon and Taylor,2005).

关键词： al. homeostasis macrophage

Synthesis, Thermal, Electrical and Catalytic Studies of Some Transition Metal Polychelates of Bis-bidentate Schiff Base

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Chinese Journal of Chemistry 2007年第2期25卷 154-158页

作者： BANSOD, Ashish ASWAR, anand Department of Chemistry S.G.B. Amravati University Amravati -444602 (MS.) India

Polychelates of Mn（Ⅱ）, Fe（Ⅱ）, Co（Ⅱ）, Ni（Ⅱ）, Cu（Ⅱ）, Zn（Ⅱ） and Cd（Ⅱ） with the bis salen-type ligand derived from 4,4＇-bis[（salicylaldehyde-5）azo]biphenyl and 1,4-diaminobutane have been synthesized. All the polychelalls have been characllrized by elemental analysis, magnetic susceptibility measurements, IR, electronic spectra and thennogravirncuic studies. All the complexes isolated in solid stall are dark coloured and insoluble in water and common organic solvents. The ligand behaves as a bis-bidentall molecule coordinating through the phenolic oxygen and azomethine nitrogen atoms. The thermal decomposition of these metal complexes was investigated by thermogravimetric analysis and data have been analyzed for kinetic parameters using Broido equation. The solid-state electrical conductivity of the ligand and its polychelalls in the form of compressed pellet was studied in the temperaturc range from 313 to 413 K All the polychelalls were found to show semiconducting nature. The Mn（Ⅱ）, Fe（Ⅱ）, Co（Ⅱ） and Ni（Ⅱ） polychelalls have been assessed for the catalytic epoxidation of styrene.

关键词： Schiff base polychelate TGA solid-state conductivity catalytic activity

Quantum Cryptography for Internet of Things Security

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Journal of Electronic Science and Technology 2019年第3期17卷 213-220页

作者： Alekha Parimal Bhatt anand Sharma the Department of Computer Science and Engineering Mody University of Science and Technology

Internet of things (IoT) is a developing technology with a lot of scope in the future. It can ease various different tasks for us. On one hand, IoT is useful for us, on the other hand, it has many serious security threats, like data breaches, side-channel attacks, and virus and data authentication. Classical cryptographic algorithms, like the Rivest-Shamir-Adleman (RSA) algorithm, work well under the classical computers. But the technology is slowly shifting towards quantum computing, which has immense processing power and is more than enough to break the current cryptographic algorithms easily. So it is required that we have to design quantum cryptographic algorithms to prevent our systems from security breaches even before quantum computers come in the market for commercial uses. IoT will also be one of the disciplines, which needs to be secured to prevent any malicious activities. In this paper, we review the common security threats in IoT and the presently available solutions with their drawbacks. Then quantum cryptography is introduced with some of its variations. And finally, the analysis has been carried out in terms of the pros and cons of implementing quantum cryptography for IoT security.

关键词： Internet of things quantum computing quantum cryptography security

The potential of remote sensing and GIS in urban building energy modelling

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Energy and Built Environment

Energy and Built Environment 2024年第6期5卷 957-969页

作者： Arunim anand Chirag Deb Centre for Urban Science and Engineering Indian Institute of Technology BombayMumbai 400076MaharashtraIndia School of Architecture Design and PlanningThe University of SydneyNSW 2006Australia

As the world continues to urbanize at an unprecedented rate,the energy demand in cities is *** account for over 75%of all the energy consumed in cities and are responsible for over two-thirds of the *** of energy demand in buildings is a highly integrative endeavour,bringing together the interdisciplinary fields of energy and urban studies,along with a host of technical domains namely,geography,engineering,economics,sociology,and *** the last decade,several urban building energy modelling tools(UBEMs)have been developed for estimation as well as prediction of energy demand in *** models are useful in policymaking as they can evaluate future urban energy ***,data acquisition for generating the input database for UBEM has been a major *** this review,a comprehensive assessment of the potential of remote sensing and GIS techniques for UBEM has been ***,the most common input variables of UBEM have been identified by reviewing recent publications on UBEM and then studies related to the acquisition of data corresponding to these variables have been *** than 140 research papers and review articles relevant to remote sensing and GIS applications for building level data extraction in urban areas and UBEM applications have been investigated for this *** going through level of details required for each of the input components of UBEM and studying the possibility of acquiring some of those data using remote sensing,it has been inferred that satellite remote sensing and Unmanned Aerial Vehicles(UAVs)have a strong potential in enhancing the input data space for UBEM but their applicability has been ***,the challenges of the usage of these technologies and the possible solutions have also been presented in this *** is recommended to utilise the existing methodologies of extracting information from remote sensing and GIS for UBEM,along with newer techniques such

关键词： Remote sensing GIS Urban Building Energy Modelling(UBEM) UAV Building energy demand

Inhibition of NO emission by adding antioxidant mixture in Jatropha biodiesel on the performance and emission characteristics of a C.I. engine

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Frontiers in Energy 2015年第2期9卷 238-245页

作者： A. PRABU R. B. anand Department of Mechanical Engineering National Institute of Technol-ogy Tiruchirappalli 620015 India

In this paper, the effect of adding an antiox- idant mixture in Jatropha biodiesel as fuel, in a single cylinder, direct injection compression ignition engine was experimentally investigated and the level of pollutants in the exhaust and performance characteristics of the engine were analyzed. Nine test fuels were prepared with three antioxidants, namely, Suecinimide （C4H5NO2）, N,N-dimethyl-p-phenylenediamine-dihydrochloride （C8H14C12N2）, and N-phenyl-p-phenylenediamine （C6H5NHC6H4NH2） added to neat biodiesel at 500 parts per million （ppm）, 1000ppm and 2000ppm and the observed experimental results were compared with those of neat biodiese! and neat diesel as base fuels. The comparison showed that NO emission was reduced drastically for the test fuels with the antioxidant addition of 2000ppm. The maximum reduction of 10% of NO emission was observed for the antioxidant mixture in neat biodiesel, with a slight increase in unburned HC, CO and smoke opacity. In addition, the obtained experimental results reveal that the addition of two antioxidants as mixture in neat biodiesel caused improved NO emission reduction for all test fuels.

关键词： NO emission antioxidants Succinimide,N,N-dimethyl-p-phenylenediamine-dihydrochloride N-phenyl-p-phenylenediamine