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Global Response to Tropical Diabatic Heating Variability in Boreal Winter

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Advances in Atmospheric Sciences 2012年第2期29卷 369-380页

作者：张旭 Hai lint 江静 School of Atmospheric Sciences Nanjing University Nanjing 210093 Shanghai Typhoon Institute Chinese Meteorological Administration Shanghai 200030 Meteorological Research Division Environmental Canada Dorval Quebec Canada

Global teleconnections associated with tropical convective activities were investigated, based on monthly data of 29 Northern Hemisphere winters： December, January, February, and March （DJFM）. First, EOF analyses were performed on the outgoing longwave radiation （OLR） data to characterize the convective ac tivity variability in the tropical Indian Ocean and the western Pacific. The first EOF mode of the convective activity was highly correlated with the ENSO. The second EOF mode had an east–west dipole structure, and the third EOF mode had three convective activity centers. Two distinct teleconnection patterns were identified that were associated, respectively, with the second and third EOF modes. A global primitive equation model was used to investigate the physical mechanism that causes the global circulation anoma lies. The model responses to anomalous tropical thermal forcings that mimic the EOF patterns matched the general features of the observed circulation anomalies well, and they were mainly controlled by linear processes. The importance of convective activities in the tropical Indian Ocean and western Pacific to the extended and longrange forecasting capability in the extratropics is discussed.

关键词： diabatic heating teleconnection tropical convective activities

Transient transport processes in deformable porous media

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Chinese Physics B 2011年第11期20卷 167-175页

作者： Cs.Mészáros A.Bálint Szent István University Department of Physics and Process Control Szent István University Department of Chemistry and Biochemistry

The basic partial differential equations relevant for convection-diffusion and convection-diffusion-wave phenomena arc presented and solved analytically by using the MAPLE symbolic computer algebra system. The possible general nonlinear character of the constitutive equation of the convection-discussion process is replaced by a direct posteriori stochastic refinement of its solution represented for Dirichlet-type boundary conditions. A thermodynamic analysis is performed for connecting the relaxation time constants and Jacobi-determinants of deformations at transient transport processes. Finally, a new procedure for general description of coupled transport processes on the basis of the formalism originally developed for convection-free phenomena is presented by matrix analysis methods in the Fourier space.

关键词： convection binary mixtures relaxation time matrix polynomials

Tie-line Power Flow Control Method for Gridconnected Microgrids with SMES Based on Optimization and Fuzzy Logic

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Journal of Modern Power Systems and Clean Energy 2020年第5期8卷 941-950页

作者： Sayed M.Said Abdelfatah Ali Bálint Hartmann Department of Electrical Engineering Aswan University81542 AswanEgypt Department of Electric Power Engineering Budapest University of Technology and Economics1111 BudapestHungary Department of Electrical Engineering South Valley University83523 QenaEgypt

In an active distribution grid,renewable energy sources(RESs)such as photovoltaic(PV)and energy storage systems(e.g.,superconducting magnetic energy storage(SMES))can be combined with consumers to compose a microgrid(MG).The high penetration of PV causes high fluctuations of tie-line power flow and highly affects power system *** can lead to several technical problems such as voltage fluctuations and excessive power *** this paper,a fuzzy logic control based SMES method(FSM)and an optimized fuzzy logic control based SMES method(OFSM)are proposed for minimizing the tie-line power ***,the fluctuations and transmission power losses are *** FSM,SMES is used with a robust fuzzy logic controller(FLC)for controlling the tie-line power *** optimization model is employed in OFSM to simultaneously optimize the input parameters of the FLC and the reactive power of the voltage source converter(VSC)of *** objective function of minimizing the tieline power flow is incorporated into the optimization *** swarm optimization(PSO)algorithm is utilized to solve the optimization problem while the constraints of the utility power grid,VSC,and SMES are *** simulation results demonstrate the effectiveness and robustness of the proposed methods.

关键词： Utility power grid microgrid photovoltaic(PV) superconducting magnetic energy storage(SMES) tie-line power fuzzy logic control(FLC)

Erosion-corrosion and its mitigation on the internal surface of the expansion segment of N80 steel tube

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International Journal of Minerals,Metallurgy and Materials 2021年第1期28卷 98-110页

作者： Tan Shang Xian-kang Zhong Chen-feng Zhang Jun-ying Hu Bálint Medgyes State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum UniversityChengdu 610500China Department of Electronics Technology Budapest University of Technology and EconomicsBudapest H-1111Hungary

We investigated erosion-corrosion(E-C) and its mitigation on the internal surface of the expansion segment of N80 steel tube in a loop system using array electrode technique, weight-loss measurement, computational-fluid-dynamics simulation, and surface characterization *** results show that high E-C rates can occur at locations where there is a high flow velocity and/or a strong impact from sand particles, which results in different E-C rates at various ***, it can be expected that localized corrosion often occurs in such *** E-C rate at each location in the expansion segment can be significantly mitigated with an imidazoline derivative inhibitor, as the resulting inhibitor layer significantly impedes the electrochemical reaction ***, we found that this inhibitor layer could not effectively reduce the difference in the erosion rates at different locations on the internal surface of the expansion *** means that localized corrosion can still occur at the expansion segment despite the presence of the inhibitor.

关键词： erosion-corrosion expansion segment array electrode technique inhibitor localized corrosion

Omicron:increased transmissibility and decreased pathogenicity

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Signal Transduction and Targeted Therapy 2022年第6期7卷 1865-1867页

作者： Gábor Bálint Barbara Vörös-Horváth Aleksandar Széchenyi Institute of Pharmaceutical Technology and Biopharmacy University of PécsFaculty of Pharmacy7624 PécsRókus u.2PécsHungary

Three research papers were published recently to compare the virological properties of the Omicron variant with the earlier variants of concern(VOC).1,2,3 The SARS-CoV-2 B.1.1.529 variant,Omicron,was first detected in South Africa in October 2021 and has spread rapidly;within three months,it appeared in more than 87 countries.4 During the surveillance of the epidemiological data and mutations of earlier COVID-19 variants and Omicron,significant differences were revealed mainly in the reproduction rate and hospitalization.

关键词： Omi earlier reproduction

Mission impossible completed:unlocking the nomenclature of the largest and most complicated subgenus of Cortinarius,Telamonia

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Fungal Diversity 2020年第5期104卷 291-331页

作者： Kare Liimatainen Tuula Niskanen Bálint Dima Joseph F.Ammirati Paul M.Kirk Ilkka Kytövuori Jodrell Laboratory Royal Botanic GardensKewSurrey TW93ABUK Botanical Museum University of HelsinkiP.O.Box 700014 HelsinkiFinland Department of Plant Anatomy Institute of BiologyEötvös Loránd UniversityPázmány Péter sétány 1/C1117 BudapestHungary Department of Biology University of WashingtonBox 351800SeattleWA 98195-1800USA

So far approximately 144,000 species of fungi have been named but sequences of the majority of them do not exist in the public ***,the quality and coverage of public barcode databases is a bottleneck that hinders the study of *** is the largest genus of Agaricales with thousands of species *** most diverse subgenus in Cortinarius is Telamonia and its species have been considered one of the most taxonomically challenging in the *** high diversity combined with convergent,similar appearing taxa have earned it a reputation of being an impossible group to *** this study a total of 746 specimens,including 482 type specimens representing 184 species were ***,a significant number of old types were successfully sequenced,105 type specimens were over 50 years old and 18 type specimens over 100 years ***,20 epi-or neotypes are proposed for recently commonly used older *** study doubles the number of reliable DNA-barcodes of species of *** Telamonia in the public sequence *** is also the first extensive phylogenetic study of the subgenus.A majority of the sections and species are shown in a phylogenetic context for the first *** study shows that nomenclatural problems,even in difficult groups like *** Telamonia,can be solved and consequently identification of species based on ITS barcodes becomes an easy task even for non-experts of the genus.

关键词： ITS Type study Barcode Neotype Phylogeny Section

Primary Research of Immunological Mechanism of Combined Hepatitis A-Measles-Varicella Vaccine

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Chemical Research in Chinese Universities 2011年第1期27卷 83-86页

作者： LI Ying-hua GUAN Feng ZHANG Xi-zhen ZHAO Hong-guang LIU Jing-ye lint Cheng-he WANG Peng-fu The First Hospital of Jilin University Changchun 130021 P R. China College of Life Science Jilin University Changchun 130012 P R. China Changchun Institute of Biological Products Changchun 130062 P. R. China

To explore the primary humoral and cellular immunological mechanism of the combined hepatitis A-measles-varicella vaccine, the mice were inoculated with hepatitis A-measles-varicella vaccine by intraperitoneally and two weeks later, blood was collected to observe the mice＇s immunological status. Antibody level was measured to appraise the humoral immunity. At the same time, T lymphocyte surface marker, NK cell activity, LAK cell activity, delayed type hypersensitivity of skin, Mφ phagocytic function, mRNA level of cytokine IL-2 and IFN-γ plus lymphocyte transformation test were used to analyze the cellular immunity. The humoral immunity results show that the combined hepatitis A-measles-varicella vaccine produce the same antibody level as their corresponding univalent vaccine, and maintained fine immunogenicity and security. The result of cellular immunity shows that the combined vaccine could activate physical immunocyte, increase the regulative ability of cytokine, enhance the physical immune function and immune defense ability. The present research proved the security and better humoral and cellular immunity of combined hepatitis A-measles-varicella vaccine from the immunological point of view, which laid good foundation for further study and development.

关键词： Combined hepatitis A-measles-varicella vaccine Humoral immunity Cellular immunity

A Heuristics-Based Cost Model for Scientic Workow Scheduling in Clou

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Computers, Materials & Continua 2021年第6期67卷 3265-3282页

作者： Ehab Nabiel Al-Khanak Sai Peck Lee Saif Ur Rehman Khan Navid Behboodian Osamah Ibrahim Khalaf Alexander Verbraeck Hans van lint Department of Transport and Planning Faculty of Civil Engineering and Geosciences(CiTG)Delft University of TechnologyDelftNetherlands Faculty of Computer Science and Information Technology University of MalayaKuala LumpurMalaysia Department of Computer Science COMSATS University Islamabad(CUI)IslamabadPakistan Faculty of Computing and Digital Technology HELP UniversityKuala LumpurMalaysia Al-Nahrain nanorenewable Energy Research Centre Al-Nahrain UniversityBaghdadIraq Department Multi-Actor Systems Faculty of TechnologyPolicy and Management(TPM)Delft University of TechnologyDelftNetherlands

Scientic Workow Applications(SWFAs)can deliver collaborative tools useful to researchers in executing large and complex scientic ***,Scientic Workow Scheduling(SWFS)accelerates the computational procedures between the available computational resources and the dependent workow jobs based on the researchers’***,cost optimization is one of the SWFS challenges in handling massive and complicated tasks and requires determining an approximate(near-optimal)solution within polynomial computational *** by this,current work proposes a novel SWFS cost optimization model effective in solving this *** proposed model contains three main stages:(i)scientic workow application,(ii)targeted computational environment,and(iii)cost optimization *** model has been used to optimize completion time(makespan)and overall computational cost of SWFS in cloud computing for all considered scenarios in this research *** will ultimately reduce the cost for service *** the same time,reducing the cost has a positive impact on the protability of service providers towards utilizing all computational resources to achieve a competitive advantage over other cloud service *** evaluate the effectiveness of this proposed model,an empirical comparison was conducted by employing three core types of heuristic approaches,including Single-based(i.e.,Genetic Algorithm(GA),Particle Swarm Optimization(PSO),and Invasive Weed Optimization(IWO)),Hybrid-based(i.e.,Hybrid-based Heuristics Algorithms(HIWO)),and Hyper-based(i.e.,Dynamic Hyper-Heuristic Algorithm(DHHA)).Additionally,a simulation-based implementation was used for SIPHT SWFA by considering three different sizes of *** proposed model provides an efcient platform to optimally schedule workow tasks by handing data-intensiveness and computational-intensiveness of *** results reveal that the proposed cost optimization model attained an optimal Job completio

关键词： Scientic workow scheduling empirical comparison cost optimization model heuristic approach cloud computing

A different cardiac resynchronization therapy technique might be needed in some patients with nonspecific intraventricular conduction disturbance pattern

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Journal of Geriatric Cardiology 2021年第12期18卷 975-985页

作者： Gábor Katona Zsuzsanna Szelényi Gábor Szénási Bálint Kozman Zsolt Rekvényi Luca Kópházi Zsolt Dobos Szilvia Vereckei András Vereckei Department of Medicine and Hematology Semmelweis UniversityBudapestHungary Heart and Vascular Center Semmelweis UniversityBudapestHungary Institute of Translational Medicine Semmelweis UniversityBudapestHungary Ardinsys Ltd. BudapestHungary Budapest University of Technology and Economics Faculty of ArchitectureBudapestHungary

BACKGROUND Current cardiac resynchronization therapy(CRT),devised to eliminate dyssynchrony in left bundle branch block(LBBB),works by pacing the latest activated left ventricular site(LALVS).We hypothesized that patients with nonspecific intraventricular conduction disturbance(NICD)pattern respond less favorably to CRT,because their LALVS is far away from that in *** By measuring the amplitude and polarity of secondary ST-segment alterations in two optional frontal and hori-zontal surface electrocardiogram(ECG)leads and using a software,we determined the resultant 3D spatial secondary ST vector,which is directed 180o away from the LALVS,in 110 patients with LBBB pattern and 77 patients with NICD pattern and heart *** validate the ECG method,we also estimated the LALVS by echocardiography using 3D parametric imaging and 2D speckle tracking in 22 LBBB patients and 20 NICD *** with NICD pattern were subdivided according to their non-overlapping frontal plane resultant secondary ST vector ranges to the NICD-1 subgroup(n=44)and the NICD-2 subgroup(n=33).RESULTS Based on the software determined coordinates of the resultant 3D spatial secondary ST vector directed 180o away from the LALVS,the LALVSs were located leftward,posterosuperior in the LBBB group,slightly left,superior in the NICD-1 sub-group,and slightly left,posteroinferior in the NICD-2 *** LALVS determined by ECG and echocardiography matched in all patients,except *** In the NICD-2 subgroup,a remote LALVS was found from that in LBBB pattern,which might explain the high non-response rate of the NICD pattern to the current CRT technique.

关键词： patients pattern ventricular