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Effect of thermal radiation on mixed convection of a nanofluid from an inclined wavy surface embedded in a non-darcy porous medium with wall heat flux

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Propulsion and Power research 2018年第2期7卷 147-157页

作者： d.Srinivasacharya P.Vijay Kumar department of Mathematics National Institute of TechnologyWarangal 506004TelanganaIndia

This article focuses on the effect of radiation on mixed convection in a nanofluid along an inclined wavy surface embedded in a non-darcy porous medium.A coordinate transformation is employed to transform the complex wavy surface to a smooth *** governing equations are transformed into a set of partial differential equations using the nonsimilarity transformation and then a local similarity and non-similarity method is applied to obtain coupled ordinary differential *** resulting equations are linearized using the successive linearization method and then solved by the Chebyshev spectral *** effects of radiation,non-darcy parameter,Brownian motion parameter,thermophoresis parameter,the amplitude of the wavy surface,angle of inclination of the wavy surface on the non-dimensional heat and nanoparticle mass transfer rates are studied and presented graphically.

关键词： Mixed convection Nanofluid Inclined wavy surface Non-darcy porous medium radiation Heat flux

Primary gastric non-Hodgkin lymphomas:recent advances regarding disease pathogenesis and treatment

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World Journal of Gastroenterology 2021年第35期27卷 5932-5945页

作者： Michael d diamantidis Maria Papaioannou Evdoxia Hatjiharissi department of Hematology Thalassemia and Sickle Cell Disease UnitGeneral Hospital of LarissaLarissa 41221ThessalyGreece division of Hematology First Department of Internal MedicineAHEPA General HospitalAristotle University of ThessalonikiThessaloniki 54636Greece

Primary gastric lymphomas(PGLs)are distinct lymphoproliferative neoplasms described as heterogeneous entities clinically and *** main histological types are diffuse large B-cell lymphoma(dLBCL)or mucosaassociated lymphoma *** has been one of the main fields of clinical research of our group in recent *** gastric dLBCLs are frequent,sufficient data to guide optimal care are *** today,a multidisciplinary approach has been applied,including chemotherapy,surgery,radiotherapy or a combination of these *** this minireview article,we provide an overview of the clinical manifestations,diagnosis and staging of these diseases,along with their molecular pathogenesis and the most important related clinical published *** then discuss the scientific gaps,perils and pitfalls that exist regarding the aforementioned studies,in parallel with the unmet need for future research and comment on the proper methodology for such retrospective *** to fill this gap,we retrospectively evaluated the trends in clinical presentation,management and outcome among 165 patients with dLBCL PGL who were seen in our institutions in *** study cohort was divided into two subgroups,comparing the main 2 therapeutic options[cyclophosphamide doxorubicin vincristine prednisone(CHOP)vs rituximab-CHOP(r-CHOP)].A better outcome with immunochemotherapy(r-CHOP)was *** the next 2 mo,we will present the update of our study with the same basic conclusion.

关键词： Primary gastric lymphoma Extranodal non-Hodgkin’s lymphoma diffuse large B-cell lymphoma Mucosa-associated lymphoid tissue Immunochemotherapy rituximab-cyclophosphamide doxorubicin vincristine prednisone

Mechanical reliability Improvement : Probability and Statistics for Experimental Testing

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A two-tier supply chain model under two distributions with MTTF,rework,variable production rate and lead time

2003年

作者： Little r. E. Kosikowski d. M.

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Journal of Management Analytics 2022年第4期9卷 532-558页

作者： B.Karthick r.Uthayakumar department of Mathematics The Gandhigram Rural Institute(Deemed to be University)GandhigramTamilnaduIndia

This article considers the two-level supply chain model incorporating an imperfect production process under a variable lead *** cost of producing a unit item is calculated as a function of the production *** addition,two alternative production functions(linear and quadratic functions)are used to relate process quality and production *** time demand follows two different distributions,based on which two mathematical formulations are described in this *** the first model,the lead time demand follows a normal *** the second model,the lead time demand doesn’t follow any particular distribution,but the mean and the standard deviation are *** lead time length is minimized by incorporating the lead time crashing *** research aims to analyze the optimized total cost of the supply chain under two different distributions.

关键词： integrated vendor buyer quality management production rate rework controllable lead time

Gorilla Troops Optimizer Based Fault Tolerant Aware Scheduling Scheme for Cloud Environment

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Intelligent Automation & Soft Computing 2023年第2期35卷 1923-1937页

作者： r.rengaraj K.Latha department of Information Technology Saranathan College of EngineeringTiruchirapalli620012TamilnaduIndia department of Computer Science and Engineering Anna University(BIT Campus)Trichy620024TamilnaduIndia

In cloud computing(CC),resources are allocated and offered to the cli-ents transparently in an on-demand *** can happen in CC environment and the cloud resources are adaptable toﬂuctuations in the performance *** execution failure becomes common in the CC ***,fault-tolerant scheduling techniques in CC environment are essential for handling performance differences,resourceﬂuxes,and ***,several intelli-gent scheduling approaches have been developed for scheduling tasks in CC with no consideration of fault tolerant *** this motivation,this study focuses on the design of Gorilla Troops Optimizer Based Fault Tolerant Aware Scheduling Scheme(GTO-FTASS)in CC *** proposed GTO-FTASS model aims to schedule the tasks and allocate resources by considering fault tolerance into *** GTO-FTASS algorithm is based on the social intelligence nature of gorilla ***,the GTO-FTASS model derives aﬁtness function involving two parameters such as expected time of completion(ETC)and failure probability of executing a *** addition,the presented fault detector can trace the failed tasks or VMs and then schedule heal submodule in sequence with a remedial or retrieval scheduling *** experimental vali-dation of the GTO-FTASS model has been performed and the results are inspected under several *** comparative analysis reported the better outcomes of the GTO-FTASS model over the recent approaches.

关键词： Cloud computing gorilla troops optimizer task scheduling fault tolerant task completion time failure probability

On the algorithmic construction of classifying spaces and the isomorphism problem for biautomatic groups

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Science China Mathematics 2011年第8期54卷 1533-1545页

作者： BrIdSON Martin r. rEEVES Lawrence Mathematical Institute University of Oxford department of Mathematics and Statistics University of Melbourne

We show that the isomorphism problem is solvable in the class of central extensions of word-hyperbolic groups,and that the isomorphism problem for biautomatic groups reduces to that for biautomatic groups with finite *** describe an algorithm that,given an arbitrary finite presentation of an automatic group Γ,will construct explicit finite models for the skeleta of K(Γ,1) and hence compute the integral homology and cohomology of Γ.

关键词： geometric group theory automatic groups isomorphism problem

Fuzzy reputation Based Trust Mechanism for Mitigating Attacks in MANET

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Intelligent Automation & Soft Computing 2023年第3期35卷 3677-3692页

作者： S.Maheswari r.Vijayabhasker department of Electronics and Communication Engineering Anna University Regional CampusCoimbatore641046India

Mobile Ad-hoc Networks(MANET)usage across the globe is increas-ing by the *** a node’s trust value has signiﬁcant advantages since such network applications only run efﬁciently by involving trustable *** trust values are estimated based on the reputation values of each node in the network by using different ***,these mechanisms have various challenging issues which degrade the network ***,a novel Quality of Service(QoS)Trust Estimation with Black/Gray hole Attack detection approach is proposed in this research ***,the QoS-based trust estimation is proposed by using a Fuzzy logic *** trust value of each node is estimated by using each node’s reputation values which are deter-mined based on the fuzzy membership function values and utilizing QoS para-meters such as residual energy,bandwidth,node mobility,and *** mechanism prevents only the black hole attack in the network during ***,the gray hole attacks are not identiﬁed which in turn increases the pack-et drop rate signiﬁ***,the gray hole attack is also detected based on the Kullback-Leibler(KL)divergence method used for estimating the statistical *** QoS metrics are considered to prevent the gray hole attack,such as packet loss,packet delivery ratio,and delay for each ***,the proposed mechanism prevents both black hole and gray hole attacks ***-ly,the simulation results show that the effectiveness of the proposed mechanism compared with the other trust-aware routing protocols in MANET.

关键词： Mobile ad-hoc network trust estimation blackhole grayhole attack fuzzy logic qos parameters kullback-leibler divergence

Micro-scale Abrasion and Medium Load Multiple Scratch Tests of PVd Coatings

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材料热处理学报 2004年第5B期25卷 1199-1202页

作者： S. Poulat d.G Teer Teer Coatings Ltd Droitwich Worcestershire.U.K.Teer Coatings Ltd Droitwich Worcestershire.U.K.

Micro-scale abrasion testing is widely used to determine the abrasion resistance of thin film coatings; it is a simple technique that can easily be used as part of a quality control procedure, but it has got the disadvantage of not allowing an easy study of the wear mechanisms involved: it is difficult to estimate the load applied on each abrasive particles in the contact between the loaded ball and the specimen. The possibility of using progressive loading scratch testing, a method widely used to assess the adhesion of thin film coatings, to model the abrasive wear of coatings has been studied in the past; the use of multiple scratch tests to study the wear mechanisms corresponding to a single abrasion scratch event has also been studied in the case of bulk materials (ceramics and hard metals). Two coatings, deposited by Closed Field Unbalanced Magnetron Sputter Ion Plating (CFUBMSIP) on ASP23 powder metallurgy steel substrate are chosen to be representative of the use of protective coatings in industry: titanium nitride, which is widely used to prevent tool wear, and TCL Graphit-iC?, which is widely used as a wear resistant solid lubricant coating. The two coatings are first characterised by using a standard quality control procedure: their thickness is determined by the cap grinding method, their adhesion by progressive loading scratch. Then micro-scale abrasion tests performed with a slurry at a concentration which promotes grooving wear, and medium load multiple scratch tests performed with diamond indenters are completed; the results of these tests are analysed and compared to determine if there is any correlation between the two sets of results; the multiple scratch tests wear tracks are also observed to determine the wear mechanisms involved.

关键词：微量磨损乱痕硬度试验 PVd 薄膜涂层

Suppression of a core metabolic enzyme dihydrolipoamide dehydrogenase (dld ) protects against amyloid beta toxicity in *** model of Alzheimer’s disease

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Genes & diseases 2021年第6期8卷 849-866页

作者： Waqar Ahmad Paul r.Ebert School of Biological Sciences The University of QueenslandBrisbaneQLD 4072Australia

A decrease in energy metabolism is associated with Alzheimer’s disease(Ad),but it is not known whether the observed decrease exacerbates or protects against the *** importance of energy metabolism in Ad is reinforced by the observation that variants of dihydrolipoamide dehydrogenase(dLd),is genetically linked to late-onset *** determine whether dLd is a suitable therapeutic target,we suppressed the dld-1 gene in Caenorhabditis elegans that express human Ab peptide in either muscles or *** of the dld-1 gene resulted in significant restoration of vitality and function that had been degraded by Ab *** included protection of neurons and muscles *** observed decrease in proteotoxicity was associated with a decrease in the formation of toxic oligomers rather than a decrease in the abundance of the Ab *** mitochondrial uncoupler,carbonyl cyanide 4-(trifluoromethoxy)phenylhydrazone(FCCP),which like dld-1 gene expression inhibits ATP synthesis,had no significant effect on Ab *** data analysis revealed that beneficial effects after dld-1 suppression could be due to change in energy metabolism and activation of the pathways associated with proteasomal degradation,improved cell signaling and ***,some features unique to dld-1 gene suppression are responsible for the therapeutic *** direct genetic intervention,we have shown that acute inhibition of dld-1 gene function may be therapeutically *** result supports the hypothesis that lowering energy metabolism protects against Ab pathogenicity and that dLd warrants further investigation as a therapeutic target.

关键词： Alzheimer’s disease Amyloid beta C.elegans dihydrolipoamide dehydrogenase(dld) Energy metabolism Neurodegeneration Proteomics