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Phenoloxidase and Melanization Innate Immune Activities in Green Darner Dragonfly Nymphs (Anax junius)

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Advances in Biological Chemistry 2022年第4期12卷 130-141页

作者： Mark Merchant matthew R. McClure Department of Chemistry McNeese State University Lake Charles USA Department of Biology Lamar State College Orange Orange USA

Insects in the Order Odonata are highly subject to infection by gregarine parasites. However, despite the important ecological roles that insects play in every ecosystem in which they exist, little research has been devoted to the description of insect immunity. Insects rely heavily on the rapid actions of innate immune mechanisms to prevent infection. We characterized the melanization response in the hemolymph of green darner dragonfly (Anax junius) nymphs. Incubation of chymotrypsin-activated hemolymph with l-DOPA resulted in volume- and time-dependent production of dopaquinone via the phenoloxidase (PO) enzyme, with biphasic accumulation of product. The PO activity was temperature-dependent, with a stepwise increase from 20℃ - 35℃ and maximum activity measured at 35℃ - 40℃. The formation of product was also inhibited in a concentration-dependent manner by diethylcarbonate, a specific inhibitor of PO activity, which indicated that the observed activity was due to the presence of PO enzyme. The rate of formation and quantity of melanin was dependent on exposure to different titers of bacteria. This is the first characterization of both PO activity and melanization response in green darner dragonflies.

关键词： Aquatic Insects Arthropod Dragonfly Hemolymph Innate Immunity Insect

Fuzzy Based latent Dirichlet Allocation for Intrusion Detection in Cloud Using Ml

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Computers, Materials & Continua 2022年第3期70卷 4261-4277页

作者： s.Ranjithkumar s.Chenthur Pandian sri Ramakrishan Engineering College Coimbatore641022India sNs College of Technology Coimbatore641035India

The growth of cloud in modern technology is drastic by provisioning services to various industries where data security is considered to be common issue that influences the intrusion detection system(IDs).IDs are considered as an essential factor to fulfill security ***,there are diverse Machine learning(Ml)approaches that are used for modeling effectual *** IDs are based on Ml techniques and categorized as supervised and ***,IDs with supervised learning is based on labeled *** is considered as a common drawback and it fails to identify the attack ***,unsupervised learning fails to provide satisfactory ***,this work concentrates on semi-supervised learning model known as Fuzzy based semi-supervised approach through latent Dirichlet Allocation(F-lDA)for intrusion detection in cloud *** helps to resolve the aforementioned ***,lDA gives better generalization ability for training the labeled ***,to handle the unlabelled data,Fuzzy model has been adopted for analyzing the ***,preprocessing has been carried out to eliminate data redundancy over network *** order to validate the efficiency of F-lDA towards ID,this model is tested under Nsl-KDD cup dataset is a common traffic *** is done inMATlAB environment and gives better accuracy while comparing with benchmark standard *** proposed F-lDAgives better accuracy and promising outcomes than the prevailing approaches.

关键词： Cloud security fuzzy model latent dirichlet allocation preprocessing Nsl-KDD

New Exact solutions for the Wick-Type stochastic Kudryashov–sinelshchikov Equation

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Communications in Theoretical Physics 2017年第2期67卷 197-206页

作者： s.saha Ray s.singh Department of Mathematics National Institute Technology Rourkela Orissa-769008 India

In this article, exact solutions of Wick-type stochastic Kudryashov–sinelshchikov equation have been obtained by using improved sub-equation method. We have used Hermite transform for transforming the Wick-type stochastic Kudryashov–sinelshchikov equation to deterministic partial differential equation. Also we have applied inverse Hermite transform for obtaining a set of stochastic solutions in the white noise space.

关键词： Kudryashov–sinelshchikov Wick-product White noise space improved sub-equation method Hermite transform inverse Hermite transform

statistical Procedures for Estimating and Detecting Climate Changes

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Advances in Atmospheric sciences 2006年第1期23卷 61-68页

作者： s. s. P. sHEN Department of Mathematical and statistical sciences University of AlbertaEdmontonCanada

This paper provides a concise description of the philosophy, mathematics, and algorithms for estimating, detecting, and attributing climate changes. The estimation follows the spectral method by using empirical orthogonal functions, also called the method of reduced space optimal averaging. The detection follows the linear regression method, which can be found in most textbooks about multivariate statistical techniques. The detection algorithms are described by using the space-time approach to avoid the non-stationarity problem. The paper includes （1） the optimal averaging method for minimizing the uncertainties of the global change estimate, （2） the weighted least square detection of both single and multiple signals, （3） numerical examples, and （4） the limitations of the linear optimal averaging and detection methods.

关键词： Climate change detection optimal averaging optimal detection mean square error multivariate analysis linear regression inference

Nonequilibrium Electron Transport Through a Quantum Dot from Kubo Formula

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Communications in Theoretical Physics 2005年第4期43卷 749-752页

作者： lǖRong ZHANGGuang-Ming CenterforAdvancedstudy TsinghuaUniversityBeijing100084China CenterforAdvancedstudy TsinghuaUniversityBeijing100084China／／DepartmentofPhysicsTsinghuaUniversityBeijing100084China

Based on the Kubo formula for an electron tunneling junction, we revisit the nonequilibrium transport properties through a quantum dot. since the Fermi level of the quantum dot is set by the conduction electrons of the leads, we calculate the electron current from the left side by assuming the quantum dot coupled to the right lead as another side of the tunneling junction, and the other way round is used to calculate the current from the right side. By symmetrizing these two currents, an effective local density states on the dot can be obtained, and is discussed at high and low temperatures, respectively.

关键词： nonequilibrium electron transport quantum dot Kubo formula Kondo effect

Heat transfer analysis of Williamson fluid over exponentially stretching surface

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Applied Mathematics and Mechanics(English Edition) 2014年第4期35卷 489-502页

作者： s.NADEEM s.T.HUssAIN Department of Mathematics Quaid-i-Azam University

This study explores the effects of heat transfer on the Williamson fluid over a porous exponentially stretching surface. The boundary layer equations of the Williamson fluid model for two dimensional flow with heat transfer are presented. Two cases of heat transfer are considered, i.e., the prescribed exponential order surface temperature （PEsT） case and the prescribed exponential order heat flux （PEHF） case. The highly nonlinear partial differential equations are simplified with suitable similar and non-similar variables, and finally are solved analytically with the help of the optimal homotopy analysis method （OHAM）. The optimal convergence control parameters are obtained, and the physical fea- tures of the flow parameters are analyzed through graphs and tables. The skin friction and wall temperature gradient are calculated.

关键词： optimal homotopy analysis method (OHAM) Williamson fluid expo-nential stretching permeable wall heat transfer prescribed exponential order surfacetemperature (PEsT) prescribed exponential order heat flux (PEHF)

Mathematical modeling of mixed convective MHD Falkner-skan squeezed sutterby multiphase flow with non-Fourier heat flux theory and porosity

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Applied Mathematics and Mechanics(English Edition) 2023年第11期44卷 2005-2018页

作者： shuguang lI M.I.KHAN F.AlI s.s.ABDUllAEV s.sAADAOUI HABIBUllAH school of Computer science and Technology Shandong Technology and Business UniversityYantai 264005Shandong ProvinceChina Department of Mechanics and Engineering science Peking UniversityBeijing 100871China Department of Mechanical Engineering Lebanese American UniversityBeirut 11020Lebanon Department of Mathematical sciences Federal Urdu University of ArtsSciences&TechnologyGulshan-e-IqbalKarachi 75300Pakistan Faculty of Chemical Engineering New Uzbekistan UniversityTashkent 100070Uzbekistan Department of science and Innovation Tashkent State Pedagogical University named after NizamiTashkent 100070Uzbekistan Department of Physics Faculty of Science and ArtsMohayel AserKing Khalid UniversityAbha 61421Saudi Arabia state Key laboratory of Turbulence and Complex system Collaborative Innovative Center for Advanced Aero-EnginesPeking UniversityBeijing 100871China

In a wide variety of mechanical and industrial applications,e.g.,space cooling,nuclear reactor cooling,medicinal utilizations(magnetic drug targeting),energy generation,and heat conduction in tissues,the heat transfer phenomenon is ***’s law of heat conduction has been used as the foundation for predicting the heat transfer behavior in a variety of real-world *** model’s production of a parabolic energy expression,which means that an initial disturbance would immediately affect the system under investigation,is one of its main ***,numerous researchers worked on such problem to resolve this *** last,this problem was resolved by Cattaneo by adding relaxation time for heat flux in Fourier’s law,which was defined as the time required to establish steady heat conduction once a temperature gradient is *** offered a material invariant version of Cattaneo’s model by taking into account the upper-connected derivative of the Oldroyd ***,both models are combinedly known as the Cattaneo-Christov(CC)*** this attempt,the mixed convective MHD Falkner-skan sutterby nanofluid flow is addressed towards a wedge surface in the presence of the variable external magnetic *** CC model is incorporated instead of Fourier’s law for the examination of heat transfer features in the energy expression.A two-phase nanofluid model is utilized for the implementation of *** nonlinear system of equations is tackled through the bvp4c technique in the MATlAB software *** influence of pertinent flow parameters is discussed and displayed through different *** and important results are summarized in the conclusion ***,in both cases of wall-through flow(i.e.,suction and injection effects),the porosity parameters increase the flow speed,and decrease the heat transport and the influence of drag forces.

关键词： sporosity Cattaneo-Christov(CC)heat flux model Falkner-skan sutterby nanofluid mixed convection stagnation point

Knoevenagel Condensation of Acetylacetone with AldehydesCatalyzed by a New Catalyst Indium Trichloride

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Chinese Chemical letters 1998年第2期9卷 123-124页

作者： Wang, l Zhang, YM Hangzhou Univ Dept Chem Hangzhou 310028 Peoples R China

The Knoevenagel condensation of acetylacetone with aldehydes catalyzed by indium trichloride was carried out at room temperature in acetonitrile to give aryl- or alkylideneacetylacetones in moderate to good yields.

关键词： Knoevenagel condensation indium trichloride acetylacetone aldehyde

OPTIMAl INVERsE lQG CONTROl FOR CERTAIN ODE AND PDE sTATIONARY PROCEssEs

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Journal of systems science & Complexity 2010年第3期23卷 584-599页

作者： David l.RUssEll Department of Mathematics Virginia Tech

Following work carried out earlier on linear-quadratic optimal control for linear finitedimensional stationary systems we report,in this article,on extension of some of those results to certaininfinite dimensional systems;in particular a class of PDE systems of elliptic *** systems arestudied in the now familiar framework developed by *** and ***,specialized to asubclass of such systems important in a variety of *** an extended example this paperstudies an optimal redistribution problem in a groundwater flow system governed by Darcy's equation,presenting both analytic and computational work related to such problems.

关键词： Elliptic PDE linear feedback control stationary system.