Results 41 to 50 of about 58,667 (217)
Depth Dependence and Keyhole Stability at Threshold, for Different Laser Welding Regimes
Applied Sciences, 2020 Depending of the laser operating parameters, several characteristic regimes of laser welding can be observed. At low welding speeds, the aspect ratio of the keyhole can be rather large with a rather vertical cylindrical shape, whereas at high welding ...
Remy Fabbro
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Laser Beam and Laser-Arc Hybrid Welding of Aluminium Alloys
Metals, 2021 Aluminium alloys are widely used in many industries due to their high strength-to-weight ratios and resistance to corrosion. Due to their specific thermophysical properties and intricate physical metallurgy, these alloys are challenging to weld.
Ivan Bunaziv +4 more
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A deep wide-field sub-mm survey of the Carina Nebula complex [PDF]
, 2010 The Great Nebula in Carina is a superb location in which to study the physics of violent massive star-formation and the resulting feedback effects, including cloud dispersal and triggered star-formation.
Beaumont +55 more
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Advanced Engineering Materials, EarlyView.Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek +5 more
wiley +1 more source
Dizhen xuebao基于震前、震后多期卫星数据，对2001年11月4日昆仑山口西MS8.1同震地表破裂进行了研究，结果表明：① 同震破裂带的西段在震前未发现先存破裂遗迹，而东段是在先存地震破裂遗迹上再次发生了破裂。② 震后两年，湖面冰、大型河道、冲沟和冲洪积扇上的地表破裂迅速地被活动性流水和气温变化等破坏，在影像上已无踪迹；震后二十年，低级阶地的地表破裂几乎无法识别，而高级阶地的破裂带保留较完整，可识别长度锐减至64%，呈“碎片”化展布。因此，同震地表破裂带的影像识别主要受所处地貌位置和气候变化等地表作用过程的影响 ...
Jiayi Li +3 more
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A simplistic approach to keyhole plan recognition [PDF]
, 1995 When applying plan recognition to Human - Computer Interaction, one must cope with users exhibiting a large amount of reactive behaviour: users that change tasks, or change strategies for achieving tasks.
Stenborg, Ola, Waern, Annika
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Review on the prediction of residual stress in welded steel components [PDF]
, 2020 Residual stress after welding has negative effects on the service life of welded steel components or structures. This work reviews three most commonly used methods for predicting residual stress, namely, empirical, semi-empirical and process simulation ...
Abdel Wahab, Magd +2 more
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Structural Porosity and Low Mineral Density in Enamel Rods Drive Molar Incisor Hypomineralisation
Advanced Functional Materials, EarlyView.This study uses advanced imaging modalities on multiple length scales to show that molar‐incisor hypomineralization does not present as a locally homogeneous pathology. Instead, microstructural defects, characterized through non‐mineralized, protein‐rich sheaths and an altered mineral structure in between prism rods, resulting in local differences in ...
Katharina Jähn‐Rickert +14 more
wiley +1 more source
Antibodies to glycans dominate the host response to schistosome larvae and eggs: Is their role protective or subversive? [PDF]
, 2001 Multiple exposures of chimpanzees to the radiation-attenuated schistosome vaccine provoked a strong parasite-specific cellular and humoral immune response. Specific IgM and IgG were directed mainly against glycans on antigens released by cercariae; these
Coulson, P.S. +7 more
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Advanced Materials Technologies, EarlyView.This review outlines how understanding bone's biology, hierarchical architecture, and mechanical anisotropy informs the design of lattice structures that replicate bone morphology and mechanical behavior. Additive manufacturing enables the fabrication of orthopedic implants that incorporate such structures using a range of engineering materials ...
Stylianos Kechagias +4 more
wiley +1 more source