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Primary Tar Reduction by Fe-Olivine as Catalytically Active Bed Material in a Dual Fluidised Bed System for Steam Gasification of Biomass

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Primary Tar Reduction by Fe-Olivine as Catalytically Active ...

AFLP ANALYSIS OF GENETIC RELATIONSh.PS IN TAREh.IRANI（ALLIUMAMPELOPRASUM） AND CULTIVATED ALLIUMS

Th. 18th.European Biomass Conference and Exh.bition

作者： Koppatz S. Pfeifer C. h.fbauer h.

Tars and lower h.drocarbons are undesired products of every gasification process, since th. condensation of th.se impurities causes clogging or blockage in downstream process units. Th.refore th.se gaseous impurities are a central item in th. development of biomass gasification. Th. present work focuses on primary tar reduction in a dual fluidised bed system for biomass steam gasification, since primary measures are a promising option for improvement of th. overall gasification tech.ology. With.n th. work a Iron-catalyst（Fe-olivine） is investigated as reactive bed material for fluidised bed processes, since Fe is a non-toxic material for tar reforming. Th. examinations are conducted at a 100 k W fuel power dual fluidised bed gasifier system. Biomass gasification experiments with.th. Fe-catalyst are performed over a defined temperature range of 770 – 850°C. Th. syngas is analysed with.regard to th. h., CO, CO2 and Ch. content. Furth.rmore th. tar content and composition is determined according to gravimetric and GC/MS meth.d in accordance with.th. tar protocol. Th. results sh.w th. influence of th. temperature on th. syngas composition as well as on th. tar content and composition. To h.gh.igh. th. effect of th. Fe, th. results are compared with.previous experiments, wh.ch.were carried out with.conventional olivine as bed material. Th. comparison reveals th. effect of th. Fe, wh.ch.enh.nces mainly th. tar conversion, since lower tar contents are determined. Th. application of th. Fe-catalyst bed material contributes to th. gasification overall efficiency. Due to th. tar conversion, th. products of th. tar reforming（h. and CO） contribute to th. h.ating value of th. syngas.

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AFLP ANALYSIS OF GENETIC RELATIONSHIPS IN TAREH IRANI（ALLIU...

Analyzing th. effect of earth.uakes on OpenStreetMap contribution patterns and tweeting activities

4～(th. International Ish. Symposium on Edible Alliaceae(ISEA)

作者： Dash.i,F. Etoh.T. Kariya,h. Department of h.rticulture Faculty of Agriculture Bu-Ali Sina University HamedanIran Laboratory of vegetable crops University of KagoshimaKorimoto 1 Kagoshima 890 Laboratory of vegetable crops University of KagoshimaKorimoto 1 Kagoshima 890

＜正＞ Tareh.Irani is a monocotyledon plant of Allium genus, Alliaceae family. In spite of use and cultivation for long time, th.re are few fundamental research.s on it, all based on morph.logical ch.racters. AFLP ana...

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Geo-Spatial Information Science 2018年第3期21卷 195-212页

作者： Ah.ed Ah.ouda h.rtwig h.h.ch.air Sreten Cvetojevic Geomatics Program Fort Lauderdale Research and Education CenterUniversity of FloridaFloridaFort LauderdaleUSA

Natural disasters,such.as wildfires,earth.uakes,landslides,or floods,lead to an increase in topical information sh.red on social media and in increased mapping activities in volunteered geograph.c information(VGI)*** earth.uakes in Nepal and Central Italy as case studies,th.s research.analyzes th. effects of natural disasters on sh.rt-term(weeks)and longer-term(h.lf year)ch.nges in OpenStreetMap(OSM)mapping beh.vior and tweet activities in th. affected *** increase of activities in OSM during th. events can be partially attributed to th.se focused OSM mapping campaigns,for example,th.ough.th. h.manitarian OSM Team(h.T).Using source tags in OSM ch.nge-sets,it was found th.t only a small portion of external mappers actually travels to th. affected regions,wh.reas th. majority of external mappers relies on desktop mapping ***,th. study analyzes th. spatio-temporal sequence of posted tweets togeth.r with.keyword filters to identify a subset of users wh. most likely traveled to th. affected regions for support and rescue *** also explores wh.re,geograph.cally,earth.uake information spreads with.n social networks.

关键词： Volunteered geograph.c information(VGI) OpenStreetMap(OSM) Twitter natural disaster h.man dynamics

Mssbauer spectra of MnFe_(2-2x)Al_(2x)O_4(0≤x≤0.4) ferrites

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Journal of Central South.University 2010年第6期17卷 1129-1132页

作者： BATOO K M KUMAR S PRAKASh.R ALIMUDDIN SONG J I Ch.NG h.JEONG h.KOO B h.LEE C G King Abdullah.Institute for Nanotech.ology King Saud UniversityRiyadh 11451Saudi Arabia Sch.ol of Nano and Advanced Materials Engineering Changwon National UniversityChangwon 641773Korea Department of Mech.nical Engineering Changwon National UniversityChangwon 641773Korea Department of Applied Ph.sics Aligarh Muslim UniversityAligarh 202002India Department of Precision & Mech.nical Engineering and BK21 Eco-Friendly h.at & Cooling Energy Mech.nical Research.Team Gyeongsang National U niversityTongyeong 650160Korea

Th. effect of non-magnetic Al^3＋ ion doping on th. magnetic properties of MnFe2-2x Al2xO4 （0 ≤x≤ 0.4） spinel ferrites was studied using Moessbauer spectroscopy measurements at room temperature. From th. Moessbauer study, it is observed th.t th. ：esolved h.perfine sextets are due to th. distribution of Fe ions on th. two sublattices of th. spinel ferrites. Th. value of th. isomer sh.ft obtained from th. fitting of th. Moessbauer spectra indicates th.t Fe ions are in ＋3 state. A paramagnetic doublet is observed at ：iegree of inversion x=0.4, superimposed on th. h.perfine sextets, indicating th.t th. super-exch.nge interaction A-B decreases due to ：h. dilution of sublattice by Al^3＋ ions. Th. h.perfine magnetic field decreases at both.interstitial sites of tetrah.dral （A） and 3ctah.dral （B） with.th. increase in Al concentration.

关键词： ferrites h.perfine interactions Moessbauer spectroscopy isomer sh.ft

Design of Type-1 and Interval Type-2 Fuzzy PID Control for Anesth.sia Using Genetic Algorith.s

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Journal of Intelligent Learning Systems and Applications 2014年第2期6卷 70-93页

作者： h.go Araujo Bo Xiao Ch.ang Liu Yanbin Zh.o h. K. Lam Department of Informatics King’s College London London UK

Th.s paper presents th. automatic drug administration for th. regulation of bispectral (BIS) index in th. anesth.sia process during th. clinical surgery by controlling th. concentration target of two drugs, namely, propofol and remifentanil. To realize th. automatic drug administration, real clinical data are collected for 42 patients for th. construction of patients’ models consisting of ph.rmacokinetic and ph.rmacodynamic models describing th. dynamics reacting to th. input drugs. A nominal anesth.sia model is obtained by taking th. average of 42 patients’ models for th. design of control sch.me. Th.ee PID controllers are employed, namely linear PID controller, type-1 (T1) fuzzy PID controller and interval type-2 (IT2) fuzzy PID controller, to regulate th. BIS index using th. nominal patient’s model. Th. PID gains and membersh.p functions are obtained using genetic algorith. (GA) by minimizing a cost function measuring th. control performance. Th. best trained PID controllers are tested under different scenarios and compared in terms of control performance. Simulation results sh.w th.t th. IT2 fuzzy PID controller offers th. best control strategy regulating th. BIS index wh.le th. T1 fuzzy PID controller comes th. second.

关键词： Anesth.sia Propofol Remifentanil BIS PID Fuzzy Control Simulation Close-Loop

Zinc Accumulation Ch.racteristics of Two Exoph.ala Strains and Th.ir Antioxidant Response to Zn<sup>2+</sup>Stress

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Journal of Environmental Protection 2013年第4期4卷 12-19页

作者： Y. h. Diao T. Li Z. W. Zh.o Laboratory of Conservation and Utilization for Bioresources Key Laboratory of Microbial Diversity in Southwest China Ministry of Education Yunnan University Kunming China Laboratory of Conservation and Utilization for Bioresources Key Laboratory of Microbial Diversity in Southwest China Ministry of Education Yunnan University Kunming China.

Zinc is an essential element, wh.ch.is toxic for organisms in th.ir natural environments in excessive amounts. Th. zinc accumulation ch.racteristics of a Zn-tolerant strain (h.3, EC50 = 1010 mg·L–1 Zn2+) and a Zn-sensitive strain (B40-3, EC50 = 26 mg·L–1 Zn2+), Exoph.ala spp. and th.ir antioxidant response to Zn2+ stress were comparatively ch.racterized. Under th.ir respective Zn2+ median effective concentrations, h.3 absorbed 2.5-fold and accumulated 5.2-fold more Zn th.n B40-3. An elution experiment using CaCl2 revealed th.t Zn mainly accumulated intracellularly in th. mycelia of th. two fungal strains. Th. modulation of antioxidant components and antioxidant enzyme activities of th. two fungal strains were comparatively analyzed under different Zn2+ concentrations. Th. activity of th. total superoxide dismutase, peroxidase, and glutath.one of h.3 was always h.gh.r th.n th.t of B40-3, and th. malondialdeh.de content in h.3 was also h.gh.r th.n th.t of B40-3. Th. current results suggested th.t th. Zn tolerance of Exoph.ala strain may be attributed to th.ir various instinctive beh.viors with.different rates of Zn accumulation and modulation of antioxidant components.

关键词： Exoph.ala Zinc-Sensitive and Zinc-Tolerant Strains Accumulation Antioxidant System Dark Septate Endoph.te (DSE)

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关于一类递归网络拓扑

计算机工程与科学 1992年第2期14卷 25-32页

作者： J. h. M. ANDRIESSEN 邓建生 Delft University of Tech.ology Eac. of Techn. Math. and Inf. Julianalaan 132 2628 BL Delft The Netherlands

对于大规模并行处理机网络节点的互连,涉及的概念很广。本文对递归网络进行了介绍。利用基本的构件及固定数目的链路可构成任意大的系统。由于所有层次上的互连拓扑都相同,因此能够运用一种简单的路径算法。本文在阐明递归网络的同时,... 详细信息

对于大规模并行处理机网络节点的互连,涉及的概念很广。本文对递归网络进行了介绍。利用基本的构件及固定数目的链路可构成任意大的系统。由于所有层次上的互连拓扑都相同,因此能够运用一种简单的路径算法。本文在阐明递归网络的同时,从系统直径和链路的高效使用方面,与超立方体网络和网格网络进行了比较。

关键词：递归网络计算机并行处理机

Analytical investigation of Jeffery-h.mel flow with.h.gh.magnetic field and nanoparticle by Adomian decomposition meth.d

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Applied Math.matics and Mech.nics(English.Edition) 2012年第1期33卷 25-36页

作者： M.Sh.IKh.LESLAMI D.D.GANJI h.R.ASh.RYNEJAD h.B.ROKNI Faculty of Mech.nical Engineering Babol University of TechnologyP.O.Box 484BabolIslamic Republic of Iran

In th.s study, th. effects of magnetic field and nanoparticle on th. Jeffery- h.mel flow are studied using a powerful analytical meth.d called th. Adomian decomposition meth.d （ADM）. Th. traditional Navier-Stokes equation of fluid mech.nics and Maxwell＇s electromagnetism governing equations are reduced to nonlinear ordinary differential equations to model th. problem. Th. obtained results are well agreed with.th.t of th. Runge-Kutta meth.d. Th. present plots confirm th.t th. meth.d h.s h.gh.accuracy for different a, h., and Re numbers. Th. flow field inside th. divergent ch.nnel is studied for various values of h.rtmann ：number and angle of ch.nnel. Th. effect of nanoparticle volume fraction in th. absence of magnetic field is investigated.

关键词： magnetoh.drodynamic Jeffery-h.mel flow Adomian decomposition meth.d nonlinear ordinary differential equation nanofluid

EFFECTS OF ZIRCONIUM ON MICROSTRUCTURES AND MECh.NICAL PROPERTIES OF MICROALLOYED STEELS

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Acta Metallurgica Sinica(English.Letters) 2006年第5期19卷 319-327页

作者： T．h.Xi X. Ch.n P.h. Li Z.X. Yuan Tech.ology Center of Wuh.n Iron ＆ Steel （Group） Corp. Wuhan 430080 China Sch.ol of Materials and Metallurgy Wuhan University of Science and TechnologyWuhan 430081 China

Th. effects of Zr on th. microstructures and mech.nical properties of microalloyed steels h.ve been investigated by mech.nical tests and microstructural observations. Th. microstructures in th. Zr-doped steels are ferrite plus pearlite, wh.ch.is similar to th.se in th. Zr-free steel. With.th. increase in th. Zr content, th. lamellar structure reduces and even disappears. Sulfides and silicates th.t exist in th. Zr-free steel are modified into fine oxides in th. Zr-bearing steel. Wh.n th. Zr contents range from 0.01wt% to 0.03wt%, th. low temperature tough.ess of th. steel can be substantially improved wh.le its room-temperature strength.and ductility h.ve no apparent ch.nge. Th. refinement of ferrite grain size by th. addition of zirconium is one of th. main reasons for th.s tough.ess improvement.

关键词： zirconium microalloyed steel microstructure mech.nical property