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作者:Stephen C. Balmert , Cara Donahue Carey , Gabriel D. Falo ...
来源:[J].Journal of Controlled Release(IF 7.633), 2020, Vol.317, pp.336-346
摘要:... Here, we present novel dissolving undercut MNAs and demonstrate their application for effective multicomponent cutaneous vaccination. The MNAs are composed of micron-scale needles featuring pyramidal heads supported by undercut stem regions with filleted bases to ensure succe...
作者:Xiangmeng Meng , Guoliang Qin , Xiaoyang Bai ...
来源:[J].Journal of Materials Processing Tech.(IF 1.953), 2016, Vol.236, pp.225-234
摘要:Abstract(#br)A computational fluid dynamics model is developed to investigate undercut defect formation in high speed gas tungsten arc welding (GTAW) process. Double-ellipse arc shear stress model and modified double-ellipse arc heat source and arc pressure models are used, which...
作者:M.W. Fu , J.Y.H. Fuh , A.Y.C. Nee
来源:[J].Computer-Aided Design(IF 1.264), 1999, Vol.31 (12), pp.777-790
摘要:Abstract(#br)In the design of plastic injection moulds, the presence of undercut features would affect mould cost and structure. In this paper, the definition, classification of undercut features and the related notions to identify them are presented. Based on the proposed undercut...
作者:Joseph B. Seymour , Lewis A. Martin , Michael J. Raffaldi ...
来源:[J].Rock Mechanics and Rock Engineering(IF 1.16), 2019, Vol.52 (11), pp.4907-4923
摘要:... to monitor the geomechanical behavior and stability of a cemented rockfill (CRF) sill and the surrounding host rock during test mining of a large undercut span beneath backfill. Six parallel, adjacent drifts were mined and backfilled to construct a CRF sill, approximately 22....
作者:Ceferino Steimbreger , Mirco D. Chapetti
来源:[J].Engineering Fracture Mechanics(IF 1.413), 2019, Vol.211, pp.32-46
摘要:Abstract(#br)Undercuts are geometrical discontinuities or grooves along the toe of a weld caused by loss of the parent material that remain unfilled by weld metal. Regardless of their causes, undercuts can be found in structures and components, in the majority of joints and most ...
作者:Jian-hua HU , Chun YANG , Ke-ping ZHOU ...
来源:[J].Transactions of Nonferrous Metals Society of China(IF 0.917), 2016, Vol.26 (7), pp.1946-1954
摘要:Abstract(#br)Undercut is one kind of important spaces to place the mining blocks in the mass underground mining. This structure is also used as a compensation space during blasting. In the process of underground mining in the fragment orebody, it is important and critical to ...
作者:Ryosuke Matsuzaki , Naoya Tsukamoto , Jun Taniguchi
来源:[J].International Journal of Adhesion and Adhesives(IF 1.295), 2016, Vol.68, pp.124-132
摘要:... In order to achieve this objective, undercut micropatterns were created on PP plates by a roll-imprinting process to introduce mechanical interlocking. The roll-imprinting molds with various undercut micropatterns were first fabricated using a wire-cut electrical discharge ...
作者:Ceferino Steimbreger , Mirco D. Chapetti
来源:[J].International Journal of Fatigue(IF 1.976), 2017, Vol.105, pp.296-304
摘要:Abstract(#br)Undercuts are geometrical discontinuities that affect fatigue strength of welded joints, since they constitute a notch at the weld toe. Detrimental effects of these flaws are governed by stress concentration, which is characterised by notch depth and root radius. Var...
作者:Yonathan Admassu , Abdul Shakoor , Neil A. Wells
来源:[J].Engineering Geology(IF 1.403), 2011, Vol.124, pp.1-11
摘要:Abstract(#br)One of the most important considerations in designing cut slopes in sub-horizontal, inter-layered, sedimentary rocks subject to differential weathering is predicting the total depth of undercutting. Undercutting-induced rockfalls are a major problem for many roadways...
作者:Zhengwei Wang , Kui Zhang , Guodong Chen ...
来源:[J].Materials Letters(IF 2.224), 2020, Vol.264
摘要:... A metal lift-off method through hyperbolic undercut of laser heat-mode lithography was proposed. In this method, a desirable hyperbolic undercut profile was used to replace the inverted trapezoid undercut, and the hyperbolic undercut profile can be obtained through laser h...

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