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Mathematical Modeling of Metal Active Gas (MAG) Arc Welding

Journal of Materials Science & Technology 2001年第1期17卷 167-168页

作者： Takayoshi Ohji Yoko Tsuji Fumikazu Miyasakn and Takeshi Yamamoto dep.rtment of adaptive machine syst.ms, Osaka University 2-l, Yamada-oka, Suita, Osaka, 565-0871, Japan dep. of adaptive machine syst. Osaka Univ. Osaka 565-0871 Japan

In the present paper. a numerical model for MAG (metal active gas) arc welding of thin plate has been developed. In MAG arc welding, the electrode wire is melted and supplied into the molten pool intermittently. Accordingly, it is assumed on the modeling that the thermal energy enters the base-plates through two following mechanisms, i.e., direct heating from arc plasma and 'indirect' heating from the dep.sited metal. In the second part of the paper, MAG arc welding process is numerically-analyzed by using the model. and the calculated weld bead dimension and surface profile have been compared with the experimental MAG welds on steel plate. As the result. it is made clear that the model is capable of predicting the bead profile of thin-plate MAG arc welding, including weld bead with undercutting.

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Fatigue Behavior of Cemented Carbide Die in Cold Forging of Steel

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Journal of Materials Science & Technology 2001年第1期17卷 51-52页

作者： Z.Wang and K.Dohda dep.. of Mechanical syst.m Engineering, Gifu University, Gifu, Japan dep. of Mech. syst. Eng. Gifu Univ. Gifu Japan

The fatigue behavior of cemented carbide die under service load in the multistage cold forging of steel was investigated. It was found that the fatigue cracks do not initiate at the stress concentration position and the crack initiation position can be classified to three types. The crack initiation position can be predicted by FEM only when the plastic deformation of the die is considered.

关键词： Fatigue Behavior of Cemented Carbide Die in Cold Forging of Steel

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The Faces of Fungi database:fungal names linked with morphology,phylogeny and human impacts

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Fungal Diversity 2015年第5期74卷 3-18页

作者： Subashini C.Jayasiri Kevin D.Hyde Hiran A.Ariyawansa Jayarama Bhat Bart Buyck Lei Cai Yu-Cheng Dai Kamel A.Abd-Elsalam Damien Ertz Iman Hidayat Rajesh Jeewon E.B.Gareth Jones Ali H.Bahkali Samantha C.Karunarathna Jian-Kui Liu J.Jennifer Luangsa-ard H.Thorsten Lumbsch Sajeewa S.N.Maharachchikumbura Eric H.C.McKenzie Jean-Marc Moncalvo Masoomeh Ghobad-Nejhad Henrik Nilsson Ka-Lai Pang Olinto L.Pereira Alan J.L.Phillips Olivier Raspé Adam W.Rollins Andrea I.Romero Javier Etayo Faruk Selçuk Steven L.Stephenson Satinee Suetrong Joanne E.Taylor Clement K.M.Tsui Alfredo Vizzini Mohamed A.Abdel-Wahab Ting-Chi Wen Saranyaphat Boonmee Dong Qin Dai Dinushani A.Daranagama Asha J.Dissanayake Anusha H.Ekanayaka S.C.Fryar Sinang Hongsanan Ruvishika S.Jayawardena Wen-Jing Li Rekhani H.Perera R.Phookamsak Nimali Ide Silva Kasun M.T.hambugala Qing Tian Nalin N.Wijayawardene Rui-Lin Zhao Qi Zhao Ji-Chuan Kang Itthayakorn Promputtha Center of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai 57100Thailand World Agro forestry Centre East and Central Asia Office 132 Lanhei RoadKunming 650201China Botany and Microbiology dep.rtment College of ScienceKing Saud UniversityRiyadh 1145Saudi Arabia Guizhou Key Laboratory of Agricultural Biotechnology Guizhou Academy of Agricultural SciencesGuiyang 550006GuizhouChina No.128/1-J Azad Housing SocietyCurcaP.O.Goa Velha403108 GoaIndia dep.rtment of Botany Goa UniversityGoa 403206India Muséum National d’Histoire Naturelle Département Systématique et EvolutionCP 39ISYEBUMR 7205 CNRS MNHN UPMC EPHE12 Rue BuffonF-75005 ParisFrance State Key Laboratory of Mycology Institute of MicrobiologyChinese Academy of SciencesWest Beicheng RdBeijingChina Institute of Microbiology Beijing Forestry UniversityPO Box 61Beijing 100083China Plant Pathology Research Institute Agricultural Research Center(ARC)12619 GizaEgypt Botanic Garden Meise Department Bryophytes-Thallophytes(BT)Nieuwelaan 38B-1860 MeiseBelgium Fédération Wallonie-Bruxelles Direction Générale de l’Enseignement non obligatoire et de la Recherche scientifiqueRue A.Lavallée 11080 BruxellesBelgium Microbiology Division Research Center for BiologyIndonesian Institute of Sciences(LIPI)Jl.Raya Jakarta-Bogor KM 46Cibinong 16911West JavaIndonesia dep.rtment of Health Sciences Faculty of ScienceUniversity of MauritiusReduitMauritius Microbe Interaction Laboratory(BMIT) BIOTECNational Science and Technology Development Agency(NSTDA)113 Thailand Science ParkThanon PhahonyothinTombon Khlong NuengAmphoe Khlong LuangPathum Thani 12120Thailand Science&Education The Field Museum1400 S.Lake Shore DriveChicagoIL 60605USA Manaaki Whenua Landcare Research Private Bag 92170AucklandNew Zealand dep.rtment of Natural History Royal Ontario Museumand Department of Ecology and Evolutionary BiologyUniversity of Toronto100 Queen’s ParkTorontoON M5S2C6Canada dep.rtment of Biotechnology Iranian Research Organiza

Taxonomic names are key links between various databases that store information on different *** global fungal nomenclural and taxonomic databases(notably Index Fungorum,Species Fungorum and MycoBank)can be sourced to find taxonomic details about fungi,while DNA sequence data can be sourced from NCBI,EBI and UNITE *** the sequence data may be linked to a name,the quality of the metadata is variable and generally there is no corresponding link to images,descriptions or herbarium *** is generally no way to establish the accuracy of the names in these genomic databases,other than whether the submission is from a reputable *** tackle this problem,a new database(FacesofFungi),accessible at ***(FoF)has been *** fungal database allows dep.sition of taxonomic data,phenotypic details and other useful data,which will enhance our current taxonomic understanding and ultimately enable mycologists to gain better and updated insights into the current fungal classification *** addition,the database will also allow access to comprehensive metadata including descriptions of voucher and type *** database is user-friendly,providing links and easy access between taxonomic ranks,with the classification syst.m based primarily on molecular data(from the literature and via updated web-based phylogenetic trees),and to a lesser extent on morphological data when molecular data are *** FoF species are not only linked to the closest phylogenetic representatives,but also relevant data is provided,wherever available,on various applied aspects,such as ecological,industrial,quarantine and chemical *** data include the three main fungal groups(Ascomycota,Basidiomycota,Basal fungi)and fungus-like *** FoF webpage is an output funded by the Mushroom Research Foundation which is an NGO with seven directors with mycological *** webpage has 76 curators,and with the help of these s

关键词： Classification Database Faces of Fungi Fungi Phylogeny Taxonomy

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