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材料热处理学报 2004年第05B期25卷 923-929页

作者： W.R.chen X.Wu B.R.Marple p.c.patnaik Structures MaterialsandPropulsionLaboratoryInstituteforAerospaceResearchNationalResearchCouncilCanadaOttawaOntarioCanadaK1AOR6 IndustrialMaterialsInstitute NationalResearchCouncilCanadaBouchervilleQuebecCanadaJ4B6Y4

It is generally believed that a thermally grown oxide (TOO) layer of alumina provides enhanced protection to the metallic bond coat in thermal barrier coating (TBc) systems at elevated temperatures. However, in an air-plasma-sprayed (ApS) TBc system with co-32Ni-21cr-8Al-0.5Y (wt%) bond coat, the TGO layer formed upon thermal exposure in air was predominantly chromia and spinels, which would not effectively protect the bond coat at above 1000°c. In addition, mixed oxides of chromia, spinel and nickel oxide formed heterogeneously between the ceramic coating and coNicrAlY bond coat, which would promote crack initiation and lead to premature TBc failure. A heat treatment in a low-pressure condition was applied to the as-sprayed TBc system, with the aim to produce an alumina layer as well as reduce the amount of detrimental oxides. The influence of this low-pressure oxidation treatment (LpOT) on the bond coat cyclic oxidation behaviour of the TBc system was also investigated.

关键词：热处理 TGO TBc 低压氧化周期性氧化 coNicrAlY合金

Status and prospects for symmetric organic redox flow batteries

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Journal of Energy chemistry 2025年第1期100卷 125-143页

作者： Md Al Raihan c.Adam Dyker Department of chemistry University of New Brunswick

As environmental concerns from fossil fuel consumption intensify, large-scale energy storage becomes imperative for the integration of renewable sources like wind, hydro, and solar with the electrical *** flow batteries, particularly those employing organic molecules, are positioned as a key technology for this purpose. This review explores the growing field of symmetric organic redox flow batteries(ORFBs) within this context. Unlike traditional asymmetric designs based on unique active materials for each electrode, symmetric ORFBs involve a single bipolar species for both electrodes. This review highlights the benefits of a symmetric design, and categorizes five distinct classes of organic bipolar molecules used in both aqueous and non-aqueous solvents. By providing a comprehensive overview of their cell cycling and performance characteristics, the strengths and weaknesses of the diverse categories of bipolar molecules are highlighted for both solvent systems, as are opportunities for future development. This should guide new research directions and advance the development of practical symmetric ORFBs.

关键词： Redox flow battery Symmetric battery Organic battery Aqueous electrolyte Non-aqueous electrolyte

Acquired sensorineural hearing loss,oxidative stress,and microRNAs

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Neural Regeneration Research 2025年第9期20卷 2513-2519页

作者： Desmond A.Nunez Ru c.Guo Division of Otolaryngology–Head&Neck Surgery Department of SurgeryFaculty of MedicineThe University of British ColumbiaVancouverBCCanada Division of Otolaryngology–Head&Neck Surgery Gordon&Leslie Diamond Health Care CentreVancouver General HospitalVancouverBCCanada Faculty of Medicine–The University of British columbia VancouverBCCanada

Hearing loss is the third leading cause of human ***-related hearing loss,one type of acquired sensorineural hearing loss,is largely responsible for this escalating global health ***-induced,ototoxic,and idiopathic sudden sensorineural are other less common types of acquired hearing *** etiology of these conditions is complex and multi-fa ctorial involving an interplay of genetic and environmental *** stress has recently been proposed as a likely linking cause in most types of acquired sensorineural hearing *** non-coding RNA sequences known as microRNAs(miRNAs)have increasingly been shown to play a role in cellular hypoxia and oxidative stress responses including promoting an apoptotic *** hair cell death is a central histopathological finding in sensorineural hearing *** these cells do not regenerate in humans,it underlies the irreversibility of human age-related hearing *** EMBASE,Ovid MEDLINE,Web of Science core collection,and *** databases over the period August 1,2018 to July 31,2023 were searched with"hearing loss,""hypoxamiRs,""hypoxia,""microRNAs,""ischemia,"and"oxidative stress"text words for English language primary study publications or registered clinical *** red clinical trials known to the senior author we re also assessed.A total of 222studies were thus *** excluding duplicates,editorials,retra ctions,secondary research studies,and non-English language articles,39 primary studies and clinical trials underwent full-text *** resulted in 11 animal,in vitro,and/or human subject journal articles and 8 registered clinical trial database entries which form the basis of this narrative *** miR-34a and miR-29b levels increase with age in *** miRNAs were demonstrated in human neuroblastoma and murine cochlear cell lines to target Sirtuin 1/peroxisome proliferato r-activated receptor gamma coactivator-1-alpha(SIRT1/p Gc-1α),SIRT

关键词： hearing loss hypoxia microRNAs oxidative stress sensorineural

Variable-order fracture mechanics and its application to dynamic fracture

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npj computational Materials 2021年第1期7卷 248-255页

作者： Sansit patnaik Fabio Semperlotti School of Mechanical Engineering Ray W.Herrick LaboratoriesPurdue UniversityWest LafayetteIN 47907USA

This study presents the formulation,the numerical solution,and the validation of a theoretical framework based on the concept of variable-order mechanics and capable of modeling dynamic fracture in brittle and quasi-brittle *** specifically,the reformulation of the elastodynamic problem via variable and fractional-order operators enables a unique and extremely powerful approach to model nucleation and propagation of cracks in solids under dynamic *** resulting dynamic fracture formulation is fully evolutionary,hence enabling the analysis of complex crack patterns without requiring any a priori assumption on the damage location and the growth path,and without using any algorithm to numerically track the evolving crack *** evolutionary nature of the variable-order formalism also prevents the need for additional partial differential equations to predict the evolution of the damage field,hence suggesting a conspicuous reduction in complexity and computational ***,the variable-order formulation is naturally capable of capturing extremely detailed features characteristic of dynamic crack propagation such as crack surface roughening as well as single and multiple *** accuracy and robustness of the proposed variableorder formulation are validated by comparing the results of direct numerical simulations with experimental data of typical benchmark problems available in the literature.

关键词： formulation dynamic hence

Unlocking hypoglycemia–associated brain microvascular dysfunction:critical insights from proteomic analysis

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Neural Regeneration Research 2025年第6期20卷 1707-1708页

作者： Siva S.V.p.Sakamuri Anil Sakamuri Department of chemistry Auburn University at MontgomeryMontgomeryALUSA Vascular Biology center and Department of Medicine Medical College of Georgia at Augusta UniversityAugustaGAUSA

Hypoglycemia-a critical complication linked to worsened brain function in diabetic subjects:Hypoglycemia is characterized by a decline in circulatory glucose levels below sta nda rd physiological *** hypoglycemia,classified as level 1 hypoglycemia,is defined by blood glucose levels below 70 mg/dL and can be effectively addressed through carbohydrate *** hypoglycemia,denoted by blood glucose levels less than 54 mg/dL,poses a life-threatening risk if left *** with type 1 and type 2 diabetes undergoing insulin treatment are particularly susceptible to hypoglycemia due to impaired counterregulatory mechanisms.

关键词： impaired intake critical

Multiple sclerosis is at a checkpoint: advancing the program

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Neural Regeneration Research 2025年第3期20卷 811-812页

作者： Brandon c.Smith Jessica L.Williams Department of Neurosciences Lerner Research InstituteCleveland ClinicClevelandOHUSA Department of Biological Geologicaland Environmental SciencesCleveland State UniversityClevelandOHUSA

Multiple sclerosis(MS) is a chronic inflammatory and demyelinating disease of the central nervous system(cNS). patients with MS experience sensory and motor function loss due to myelin and/or axon damage perpetuated b... 详细信息

关键词： Hauser sclerosis damage

Small molecule inhibitor DDQ-treated hippocampal neuronal cells show improved neurite outgrowth and synaptic branching

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Neural Regeneration Research 2025年第9期20卷 2624-2632页

作者： Jangampalli Adi pradeepkiran priyanka Rawat Arubala p.Reddy Erika Orlov pHemachandra Reddy Department of Internal Medicine Texas Tech University Health Sciences CenterLubbockTXUSA Department of Nutritional Sciences College of Human SciencesTexas Tech UniversityLubbockTXUSA Department of pharmacology&Neuroscience Texas Tech University Health Sciences CenterLubbockTXUSA Department of Neurology Texas Tech University Health Sciences CenterLubbockTXUSA Department of Speech Language and Hearing SciencesTexas Tech University Health Sciences CenterLubbockTXUSA Department of public Health Texas Tech University Health Sciences CenterLubbockTXUSA

The process of neurite outgrowth and branching is a crucial aspect of neuronal development and *** and dendrites,sometimes referred to as neurites,are extensions of a neuron's cellular body that are used to start *** we explored the effects of diethyl(3,4-dihydroxyphenethylamino)(quinolin-4-yl)methylphosphonate(DDQ)on neurite developmental features in HT22 neuronal *** this work,we examined the protective effects of DDQ on neuronal processes and synaptic outgrowth in differentiated HT22cells expressing mutant Tau(mTau)*** investigate DDQ chara cteristics,cell viability,biochemical,molecular,western blotting,and immunocytochemistry were *** outgrowth is evaluated through the segmentation and measurement of neural *** neural processes can be seen and measured with a fluorescence microscope by manually tracing and measuring the length of the neurite *** neuronal processes can be observed and quantified with a fluorescent microscope by manually tracing and measuring the length of the neuronal ***-treated mTau-HT22 cells(HT22 cells transfected with cDNA mutant Tau)were seen to display increased levels of synaptophysin,MAp-2,andβ-***,we confirmed and noted reduced levels of both total and p-Tau,as well as elevated levels of microtubule-associated protein 2,β-tubulin,synaptophysin,vesicular acetylcholine transporter,and the mitochondrial biogenesis protein-pe roxisome prolife rator-activated receptor-gamma coactivator-1α.In mTa u-expressed HT22 neurons,we observed DDQ enhanced the neurite characteristics and improved neurite development through increased synaptic *** findings conclude that mTa u-HT22(Alzheimer's disease)cells treated with DDQ have functional neurite developmental chara *** key finding is that,in mTa u-HT22 cells,DDQ preserves neuronal structure and may even enhance nerve development function with mTa u inhibition.

关键词： diethyl(3 4-dihydroxyphenethylamino)(quinolin-4-yl)methylphosphonate(DDQ) hippocampal neuronal cells HT22 neurite outgrowth neuronal development small molecule

Biodegradable Behavior of Waste Wool and Their Recycled polyester preforms in Aqueous and Soil conditions

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Journal of Renewable Materials 2021年第10期9卷 1661-1671页

作者： Sudhakar Muniyasamy Asis patnaik Nanostructured and Advanced Materials Chemicals ClusterCSIRPretoria0001South Africa Department of chemistry Nelson Mandela UniversityPort Elizabeth6001South Africa Department of clothing and Textile Technology Faculty of Engineering and the Built EnvironmentCape Peninsula University of TechnologyBellville CampusCape Town7535South Africa

present study deals with the biodegradable behavior of individual components and their preforms of nonwoven biocomposites developed from waste wool fibers including coring wool(cW),dorper wool(DW)and recycled polyester fibers(RpET).A respirometric technique was employed to estimate the production of cO_(2) during the biodegradation experiments under soil and aqueous media *** groups of test samples before and after biodegradation were analyzed using Fourier transform infrared spectroscopy(FTIR).Leaching chemicals such as formaldehyde(hydrolyzed)and chromium VI(cr VI)was also *** cO_(2) emission in wool fibers cW and DW indicated 90%and 60%biodegradation in soil burial and aqueous media conditions respectively,for 100 days *** fibers,20%and 10%biodegradation in soil burial and aqueous media conditions was measured respectively while the preforms of waste wool and RpET reflected 30%and 25%biodegradation in soil burial and aqueous media conditions,*** degradation of end functional groups such as carbonyl(keto and ester),aldehyde and hydroxyl were also confirmed by *** DW and cW wool fibers showed higher cr(VI)concentration as compared to the *** released formaldehyde results showed higher concentration for RpET preforms as compared to waste wool *** results suggest that waste wool preforms are extremely environment friendly as compared to RpET ***,waste wool preforms it can be potentially utilized for preparing biocomposite materials and associated biobased products.

关键词： Biocomposites biodegradation leaching chemicals synthetic polyesters waste wool fibers

Intelligent and Adaptive Web Data Extraction System Using convolutional and Long Short-Term Memory Deep Learning Networks

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Big Data Mining and Analytics 2021年第4期4卷 279-297页

作者： Sudhir Kumar patnaik c.Narendra Babu Mukul Bhave Department of computer Science and Engineering M.S.Ramaiah University of Applied SciencesBangalore 560054India Gibraltar India Solutions LLp Bangalore 560103India Department of computer Science and Engineering M.S.Ramaiah University of Applied SciencesBangalore 560054India.

Data are crucial to the growth of e-commerce in today's world of highly demanding hyper-personalized consumer experiences,which are collected using advanced web scraping ***,core data extraction engines fail because they cannot adapt to the dynamic changes in website *** study investigates an intelligent and adaptive web data extraction system with convolutional and Long Short-Term Memory(LSTM)networks to enable automated web page detection using the You only look once(Yolo)algorithm and Tesseract LSTM to extract product details,which are detected as images from web *** state-of-the-art system does not need a core data extraction engine,and thus can adapt to dynamic changes in website *** conducted on real-world retail cases demonstrate an image detection(precision)and character extraction accuracy(precision)of 97%and 99%,*** addition,a mean average precision of 74%,with an input dataset of 45 objects or images,is obtained.

关键词： adaptive web scraping deep learning Long Short-Term Memory(LSTM) Web data extraction You only look once(Yolo)

Adaptive fractional integral terminal sliding mode power control of UpFc in DFIG wind farm penetrated multimachine power system

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protection and control of Modern power Systems 2018年第1期3卷 79-92页

作者： p.K.Dash R.K.patnaik S.p.Mishra Siksha O Anusandhan University Khandagiri SquareBhubaneswarOdisha 751030India GMR Institute of Technology RajamAndhra Pradesh 532127India

With an aim to improve the transient stability of a DFIG wind farm penetrated multimachine power system(MpN),an adaptive fractional integral terminal sliding mode power control(AFITSMpc)strategy has been proposed for the unified power flow controller(UpFc),which is compensating the *** proposed AFITSMpc controls the dq-axis series injected voltage,which controls the admittance model(AM)of the *** a result the power output of the DFIG stabilizes which helps in maintaining the equilibrium between the electrical and mechanical power of the nearby *** the rotor angular deviation of the respective generators gets recovered,which significantly stabilizes the *** proposed AFITSMpc for the admittance model of the UpFc has been validated in a DFIG wind farm penetrated 2 area 4 machine power system in the MATLAB *** robustness and efficacy of the proposed control strategy of the UpFc,in contrast to the conventional pI control is vindicated under a number of intrinsic operating conditions,and the results analyzed are satisfactory.

关键词： Adaptive fractional integral terminal sliding mode power control Doubly fed induction generator Multimachine power network Unified power flow controller