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Diary of a wimpy kid

Diary of a wimpy kid

Machining of the Flat Surfaces with Abrasive-metallic Lapping Tools

作者： by Jeff kinney.

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材料热处理学报 2004年第05B期25卷 1333-1335页

作者： adam Barylski Gdansk University of Technology Gdansk Poland

The constructional principle of abrasion metal disc is that abrasive insertions are spread uniformly on the working surface of a metal base. During lapping by means of such tools only the machining fluid is dosed and that by drop. Abrasive elements of circular shape pellets are produced by mixing boron carbide BC400 micrograins with electrographite components, the pellets were pressed with a load of about 12 kN. Next they were heated in furnace at about 520K for hours, then cooled together with the furnace. Tests were carried out on the making of circular abrasive insertions of which the main components were born carbide and micrograins of electric copper mixed the epoxide resins.

关键词：布面平整研磨工具金属磨损环氧树脂

Treatment of Helicobacter pylori

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World Journal of Gastroenterology 2001年第3期7卷 303-307页

作者： adam Harris Consultant Gastroenterologist Kent and Sussex HospitalTunbridge WellsKent TN4 8ATEngland

INTrODUCTIONUsing an evidence-based approach this review discusses the current treatment of Helicobacter pylori infection in patients with peptic ulcer disease, functional (non-ulcer)dyspepsia or gastro-oesophageal reflux disease (GOrD).It also briefly addresses the potential role of eradication of H . pylori in preventing gastric cancer .

关键词： Anti-Bacterial Agents Helicobacter Infections Helicobacter pylori Humans Peptic Ulcer Virulence

The Continental Scale USMTArray:Lessons Learned and Synergies with SinoProbe-Ⅱ

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Acta Geologica Sinica(English Edition) 2024年第S1期98卷 51-52页

作者： adam SCHULTZ National Geoelectromagnetic Facility College of EarthOcean and Atmospheric SciencesOregon State UniversityCorvallisOR 97331-5503USA

The USMTArray was completed on June 27,2024,comprising a network of 1779 transportable long-period magnetotelluric(MT)stations(Fig.1)with nominal 70-km grid spacing spanning the conterminous United States,an area of 8.1×10^(6)km^(2).Each station operated for weeksto-months,as required to meet data quality standards over the period band of 10–10000 *** USMTArray shares similarities with the planned SinoProbe-II MT Array,with its 1-degree station spacing(~111 km in the latitudinal direction)spanning an area of 9.6×10^(6)km^(2).

关键词： USMTArray structure and evolution of continents monitoring magnetotelluric stations SinoProbe-II

A Quasi-One-Dimensional CFD Model for Multistage Turbomachines

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Journal of Thermal Science 2008年第1期17卷 7-20页

作者： Olivier Léonard Olivier adam University of Liège-Turbomachinery Group LiegeBelgium Professor University of Liège-Turbomachinery Group LiegeBelgium

The objective of this paper is to present a fast and reliable CFD model that is able to simulate stationary and transient operations of multistage compressors and turbines. This analysis tool is based on an adapted version of the Euler equations solved by a time-marching, finite-volume method. The Euler equations have been extended by including source terms expressing the blade-flow interactions. These source terms are determined using the ve- locity triangles and a row-by-row representation of the blading at mid-span. The losses and deviations undergone by the fluid across each blade row are supplied by correlations. The resulting flow solver is a performance pre- diction tool based only on the machine geometry, offering the possibility of exploring the entire characteristic map of a multistage compressor or turbine. Its efficiency in terms of CPU time makes it possible to couple it to an optimization algorithm or to a gas turbine performance tool. Different test-cases are presented for which the calculated characteristic maps are compared to experimental ones.

关键词： multistage compressors turbines quasi-one-dimensional meanline analysis

Of mice and men： what rodent models don＇t tell us

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Cellular & Molecular Immunology 2013年第4期10卷 284-285页

作者： adam C Drake Koch Institute for Integrative Cancer research atMIT Cambridge MA USA

Work recently published in PNAS by The Inflammation and Host response to Injury, Large Scale Collaborative research Program1 compared the transcriptional responses in peripheral blood to inflammatory injuries （burns,... 详细信息

关键词： Inflammation Injury human

Soil spatial variability impact on the behavior of a reinforced earth wall

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Frontiers of Structural and Civil Engineering 2020年第2期14卷 518-531页

作者： adam HAMrOUNI Daniel DIAS Badreddine SBArTAI Laboratory InfrarES Mohammed Cherif Messaadia UniversitySoukAhras 41000Algeria School of Automotive and Transportation Engineering Hefei University of TechnologyHefei 230009China Antea Group Antony 92160France Department of Civil Engineering University of AnnabaAnnaba 23000&LMGHU LaboratoryUniversity of SkikdaSkikda 21000Algeria

This article presents the soil spatial variability effect on the performance of a reinforced earth *** serviceability limit state is considered in the *** cases of isotropic and anisotropic non-normal random fields are implemented for the soil *** K arhunen-Loeve expansion method is used for the discretization of the random *** finite difference models are considered as deterministic *** Monte Carlo simulation technique is used to obtain the deformation response variability of the reinforced soil retaining *** influences of the spatial variability response of the geotechnical system in terms of horizontal facing displacement is presented and *** results obtained show that the spatial variability has an important influence on the facing horizontal displacement as well as on the failure probability.

关键词： reinforced earth wall geosynthetic random field spatial variability Monte Carlo simulation

Improved Synergetic Current Control for Grid-connected Microgrids and Distributed Generation Systems

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Journal of Modern Power Systems and Clean Energy 2022年第5期10卷 1302-1313页

作者： A.Elnady A.Noureldin A.A.adam Department of Electrical Engineering University of SharjahSharjahUnited Arab Emirates Department of Electrical and Computer Engineering Royal Military CollegeKingstonCanada Department of Electrical and Computer Engineering Queens UniversityKingstonCanada

This paper presents the development of improved synergetic current control for the injected current of an inverter in the grid-connected microgrid and the distributed generation system(DGS). This paper introduces new formulas of the macro-variable functions for integral synergetic control(SC)and integral fast terminal SC, which both have an integral term to guarantee zero steady-state error. The proposed integral SC and integral fast terminal SC achieve a seamless performance such as the fast convergence, minimal overshoot, zero steady-state error, and chattering-free operation. To demonstrate the meritorious performance of the proposed scheme for injected current control, it is compared with the performance of a proportional-integral(PI) controller and advanced exponential sliding mode control(SMC). Finally, the practicality of the proposed scheme is justified by experimental results obtained through rapid control prototyping(rCP) using the dSPACESCALEXIO platform.

关键词： Integral synergetic control(SC) current control integral fast terminal SC advanced exponential sliding mode control(SMC) proportional-integral(PI)control microgrid distributed generation system(DGS)

THE FEKETE-SZEG PrOBLEM FOr CLOSE-TO-CONVEX FUNCTIONS WITH rESPECT TO THE KOEBE FUNCTION

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Acta Mathematica Scientia 2014年第5期34卷 1571-1583页

作者： Bogumila KOWALCZYK adam LECKO Chair of Complex Analysis University of Warmia and Mazury ul. S loneczna 5410710 Olsztyn Poland

An analytic function f in the unit disk D ：= {z ∈ C ：｜z｜〈 1}, standardly normalized, is called close-to-convex with respect to the Koebe function k（z）：= z/（1-z）2, z ∈ D, if there exists δ ∈ （-π/2,π/2） such that re {eiδ（1-z）2f′（z）} 〉 0, z ∈ D. For the class C（k） of all close-to-convex functions with respect to k, related to the class of functions convex in the positive direction of the imaginary axis, the Fekete-Szego problem is studied.

关键词： Fekete-Szego problem close-to-convex functions close-to-convex functionswith respect to the Koebe function close-to-convex functions with argumentδ functions convex in the positive direction of the imaginary axis