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Advances in Manufacturing 2013年第4期1卷 362-377页

作者： A.G.Kamble r.Venkata rao Department of Mechanical Engineering Sardar Vallabhbhai National Institute of Technology

Gas metal arc welding （GMAW） develops an arc by controlling the metal from the wire rod and the input pro- cess parameters. The deposited metal forms a weld bead and the mechanical properties depend upon the quality of the weld bead. Proper control of the process parameters which affect the bead geometry, the microstructures of the weldments and the mechanical properties like hardness, is necessary. This experimental study aims at developing mathematical models for bead height （HB）, bead width （WB） and bead penetration （PB） and investigating the effects of four process parameters viz： welding voltage, welding speed, wire feed rate and gas flow rate on bead geometry, hardness and microstructure of AISI321 steel with 10 mm thickness. The transient thermal analysis shows temperature and residual stress distributions at different conduction and convection conditions.

关键词： Gas metalMathematical modelingthermal analysisarc welding (GMAW)Microstructure ~ Transient

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现象学视域下农村集体经济的本质再诠释

西北农林科技大学学报（社会科学版） 2025年第1期25卷 60-68页

作者：李林峰刘启明饶静中国农业大学人文与发展学院北京100083 中共江西省委党校江西经济社会发展战略研究所南昌330108

鉴于当前政策、理论和实践领域对农村集体经济本质缺乏共识,本研究采用胡塞尔现象学的方法论,特别是一般现象学还原、本质还原和先验还原等技术,系统地审视了“农村集体经济应该是什么”这一核心议题。通过全面梳理当前对农村集体经济... 详细信息

鉴于当前政策、理论和实践领域对农村集体经济本质缺乏共识,本研究采用胡塞尔现象学的方法论,特别是一般现象学还原、本质还原和先验还原等技术,系统地审视了“农村集体经济应该是什么”这一核心议题。通过全面梳理当前对农村集体经济的多维认知,从而为其本质探索提供更为宽广的视角。在搁置既有认识的基础上,采用更加开放的态度识别出土地集体所有制是农村集体经济的共相,这一发现为理解其本质提供了关键线索。进一步从源初意向性与结构性剖析农村集体经济,揭示其本质在于注重公正,并凸显了其深厚的社会性和伦理性。这种本体论式反思既验证了马克思主义理论关于集体所有制经济的科学性及其生命力,更展示了中国农村集体经济独有的文化烙印。同时,跨学科的研究方法或为理解农村集体经济提供了新的视角,为推动其持续健康发展提供有益的思考。

关键词：农村集体经济现象学本质

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

nanofluids:Stability,phase diagram,rheology and applications

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Particuology 2010年第6期8卷 549-555页

作者： Yuanqiao rao corporate r&D The Dow Chemical Company Freeport 7X 77541 USA

There is no doubt about the potential technological significance of nanofluids. The promising application areas have been identified as effective heat transfer fluids, contrast agents in magnetic resonance imaging, magnetohyperthermia treatment, precursors to high performance nanocomposites and ordered nanostructures. However, commercial applications are rare, in part due to the limited understanding of the nanofluid fundamentals such as colloid stability, phase diagrams and rheology. This paper intends to provide a brief overview of the scientific disciplines that are important to nanofluids, and the interconnection among different disciplines in order to gain a perspective on the future development of this intriguing area.

关键词： nanofluids colloid stability Phase diagram rheology

Antisense oligonucleotides provide optimism to the therapeutic landscape for tauopathies

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neural regeneration research 2025年第3期20卷 803-804页

作者： Glenn A.Harris Lauren r.Hirschfeld rainwater charitable Foundation Fort WorthTXUSA

Tauopathies are a group of neurodegenerative diseases characterized by abnormal metabolism of the misfolded tau protein. Tau is encoded by the microtubule-associated protein tau gene(MAPT) and can be classified as either 3-repeat(3r) or 4-repeat(4r) based on the number of repeat domains from alternative splicing of exon 10 of the MAPT gene.

关键词： tau metabolism diseases

Science and technology of atmospheric effects on optical engineering：Progress in 3rd quinquennium of 21st century

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Science china(Technological Sciences) 2017年第12期60卷 1771-1783页

作者： rao ruiZhong Key Laboratory of Atmospheric Optics Anhui Institute of Optics and Fine Mechanics Chinese Academy of Sciences Hefei 230031 China

Brief introduction with remarks is given for recent work in optical properties of turbulent and turbid atmospheres and their effects on optical engineering. Emphasis about turbulence investigation is paid on spatial structure characteristics of optical turbulence,turbulence profiling with lidar technology, and turbulence prediction based on mesoscale atmospheric model. Discussion of turbid atmosphere study is focused on light scattering by non-spherical aerosol particles, high resolution atmospheric transmittance from solar radiation measurement, total sky imaging with high spectral resolution, and the modulation transfer function of a turbid medium. Key points about light propagation through turbulence include non-Kolmogorov turbulence effects, probability distribution models of scintillation, and combined beam propagation. Atmospheric effects on quantum communication are discussed, and statistical characteristics of atmospheric effects on optical engineering are introduced.

关键词： optical engineering atmospheric effect light propagation turbulence aerosol particles

Facile synthesis of benzimidazole bearing 2-pyridone derivatives as potential antimicrobial agents

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chinese chemical Letters 2014年第2期25卷 305-307页

作者： n.c.Desai n.r.Shihory G.M.Kotadiya Division of Medicinal chemistry Department of Chemistry(UGC NON-SAP & DST-FIST Sponsored)M.K.Bhavnagar University

A series of benzimidazole bearing 2-pyridones 5a-k were synthesized and assessed in vitro for their activity as antimicrobial agents using the conventional broth dilution method. The results of the antimicrobial study revealed that compounds 5b, 5c, Sj and 5k exhibited substantial antibacterial activity while compound 5d emerged as amore potent antifungal agent compared to the standard drugs chloramphenicol and ketoconazole, respectively. It was observed that the presence of inductively electron withdrawing groups remarkably enhance the antibacterial activity of the newly synthesized compounds. cytotoxicity studies suggested that none of the tested compounds exhibited any significant cytotoxic effects.

关键词： Benzimidazole 2-Pyridone Antimicrobial activity cytotoxicity

Application of supersonic particle deposition to enhance the structural integrity of aircraft structures

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Science china(Physics,Mechanics & Astronomy) 2014年第1期57卷 12-18页

作者： Matthews n. Jones r. Sih G.c. rosebank Engineering Australia 836 Mountain Highway Bayswater VIC 315 Australia centre of Expertise in Structural Mechanics Department of Mechanical and Aeronautical Engineering Monash UniversityWellington Rd Clayton Vic 3800 Australia centre of Sustainability Accountability and Eco-Affordability for Large and Small Structures Lehigh University BethlehemPennsylvania USA

Aircraft metal components and structures are susceptible to environmental degradation throughout their original design life and in many cases their extended *** paper summarizes the results of an experimental program to evaluate the ability of Supersonic Particle Deposition(SPD),also known as cold spray,to extend the limit of validity(LOV)of aircraft structural components and to restore the structural integrity of corroded *** this study the potential for the SPD to seal the mechanically fastened joints and for this seal to remain intact even in the presence of multi-site damage(MSD)has been *** sealing the joint the onset of corrosion damage in the joint can be significantly retarded,possibly even eliminated,thereby dramatically extending the LOV of mechanically fastened *** study also shows that SPD can dramatically increase the damage tolerance of badly corroded wing skins.

关键词： cold spray fuselage joints corrosion LOV

An improved analytical model of 4H-Sic MESFET incorporating bulk and interface trapping effects

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Journal of Semiconductors 2015年第1期36卷 64-75页

作者： M.Hema Lata rao n.V.L.narasimha Murty School of Electrical Sciences IIT BhubaneswarBhubaneswar 751013India

An improved analytical model for the current–voltage（I–V） characteristics of the 4H-Sic metal semiconductor field effect transistor（MESFET） on a high purity semi-insulating（HPSI） substrate with trapping and thermal effects is presented. The 4H-Sic MESFET structure includes a stack of HPSI substrates and a uniformly doped channel layer. The trapping effects include both the effect of multiple deep-level traps in the substrate and surface traps between the gate to source/drain. The self-heating effects are also incorporated to obtain the accurate and realistic nature of the analytical model. The importance of the proposed model is emphasised through the inclusion of the recent and exact nature of the traps in the 4H-Sic HPSI substrate responsible for substrate *** analytical model is used to exhibit Dc I–V characteristics of the device with and without trapping and thermal effects. From the results, the current degradation is observed due to the surface and substrate trapping effects and the negative conductance introduced by the self-heating effect at a high drain voltage. The calculated results are compared with reported experimental and two-dimensional simulations（Silvaco -TcAD）. The proposed model also illustrates the effectiveness of the gate–source distance scaling effect compared to the gate–drain scaling effect in optimizing 4H-Sic MESFET performance. results demonstrate that the proposed I–V model of 4H-Sic MESFET is suitable for realizing Sic based monolithic circuits（MMIcs） on HPSI substrates.

关键词： Sic MESFET HPSI substrate deep-level traps MMIcs

Phish Block:A Blockchain Framework for Phish Detection in cloud

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computer Systems Science & Engineering 2023年第1期44卷 777-795页

作者： r.n.Karthika c.Valliyammai M.naveena Department of computer Technology Madras Institute of Technology CampusAnna UniversityChrompet600044India

The data in the cloud is protected by various mechanisms to ensure security aspects and user’s ***,deceptive attacks like phishing might obtain the user’s data and use it for malicious *** Spite of much techno-logical advancement,phishing acts as thefirst step in a series of *** technological advancements,availability and access to the phishing kits has improved drastically,thus making it an ideal tool for the hackers to execute the *** phishing cases indicate use of foreign characters to disguise the ori-ginal Uniform resource Locator(UrL),typosquatting the popular domain names,using reserved characters for re directions and multi-chain *** phishing UrLs can be stored as a part of the document and uploaded in the cloud,providing a nudge to hackers in cloud *** cloud servers are becoming the trusted tool for executing these *** prevailing software for blacklisting phishing UrLs lacks the security for multi-level phishing and expects security from the client’s end(browser).At the same time,the avalanche effect and immut-ability of block-chain proves to be a strong source of *** these trends in technology,a block-chain basedfiltering implementation for preserving the integrity of user data stored in the cloud is *** proposed Phish Block detects the homographic phishing UrLs with accuracy of 91%which assures the security in cloud storage.

关键词： cloud server phishing UrLs phish detection blockchain safe files smart contract