Results 71 to 80 of about 58,667 (217)

Vision-aided Monitoring and Control of Thermal Spray, Spray Forming, and Welding Processes [PDF]

, 1993
Vision is one of the most powerful forms of non-contact sensing for monitoring and control of manufacturing processes. However, processes involving an arc plasma or flame such as welding or thermal spraying pose particularly challenging problems to ...
Agapakis, John E., Bolstad, Jon
core   +1 more source

Unlocking the Keyhole - H2 and PAH emission from molecular clumps in the Keyhole Nebula [PDF]

, 2000
To better understand the environment surrounding CO emission clumps in the Keyhole Nebula, we have made images of the region in H2 1-0 S(1) (2.122 um) emission and polycyclic aromatic hydrocarbon (PAH) emission at 3.29 um.
Allamandola, Allamandola, Allen, Burton, Burton, Cox, Cox, Cox, Damineli, Davidson, Davidson, Deharveng, Fowler, Geballe, Habing, Hereld, Hollenbach, Huchtmeier, Hummer, J. M. Rathborne, J. W. V. Storey, Joblin, K. J. Brooks, Léger, M. C. B. Ashley, M. G. Burton, Panagia, Ryder, Sloan, Tielens, Tovmassian, Walborn   +31 more
core   +4 more sources

‘The Good Couscous That Pleases Us!’: The Meanings of Enduring Imperialist Imagery in Postcolonial French Food Advertising, 1970–2000

Gender &History, EarlyView.
ABSTRACT This article examines a wave of Orientalism‐inspired food commercials that appeared on television in France between 1975 and 2000. Older commercials for couscous were more banal, emphasizing a given product's superiority or affordability. Around 1975, however, there was a concerted shift in the advertising; new spots contained exoticized ...
Kelly Ricciardi Colvin
wiley   +1 more source

Dynamic MR-Imaging with Radial Scanning, a Post-Acquisition Keyhole Approach

EURASIP Journal on Advances in Signal Processing, 2003
A new method for 2D/3D dynamic MR-Imaging with radial scanning is proposed. It exploits the inherent strong oversampling in the centre of -space, which holds crucial temporal information of the contrast evolution.
Wajer Frank TAW, van Ormondt Dirk, Lethmate Ralf, Crémillieux Yannick, Graveron-Demilly Danielle   +4 more
doaj   +1 more source

Computational Investigation on the Combined Effect of Applied Strain and Pore Configuration on Strain Concentrators in Additively Manufactured Metals

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT Metal additive manufacturing (AM) provides a pathway for creating highly optimized components that would be difficult to produce using traditional manufacturing methods. However, regardless of printing parameters or postprocessing, porosity remains a prevalent challenge in AM components because strain concentrates in the vicinity of the pore ...
Erick Adan Ramirez, Saikumar Reddy Yeratapally, George Robert Weber, Kenji Shimada   +3 more
wiley   +1 more source

Front-side monitoring technology for back-side keyhole state in VPPAW

Hanjie xuebao
In the process of variable polarity plasma arc welding (VPPAW), the state of the keyhole, particularly the back-side keyhole, was a critical factor influencing the weld formation quality.
Fan JIANG, Shitong FANG, Guokai ZHANG, Shujun CHEN, Tianming LI, Bin XU   +5 more
doaj   +1 more source

Comparative Numerical Analysis of Keyhole Shape and Penetration Depth in Laser Spot Welding of Aluminum with Power Wave Modulation

Thermo
Keyhole mode laser welding is a valuable technique for welding thick materials in industrial applications. However, its susceptibility to fluctuations and instabilities poses challenges, leading to defects that compromise weld quality.
Saeid SaediArdahaei, Xuan-Tan Pham
doaj   +1 more source

Influence of Surface State in Micro-Welding of Copper by Nd:YAG Laser

Applied Sciences, 2018
Laser welding of copper is characterized by low and unstable light absorption around 1000 nm wavelength. Combination of high thermal conductivity and low melting point makes it difficult to obtain good welding quality and leads to low energy utilization.
Martin Ruthandi Maina, Yasuhiro Okamoto, Reiki Inoue, Shin-ichi Nakashiba, Akira Okada, Tomokazu Sakagawa   +5 more
doaj   +1 more source

Microflow of fluorescently labelled red blood cells in tumours expressing single isoforms of VEGF and their response to VEGF-R tyrosine kinase inhibition [PDF]

, 2009
This paper was presented at the 2nd Micro and Nano Flows Conference (MNF2009), which was held at Brunel University, West London, UK. The conference was organised by Brunel University and supported by the Institution of Mechanical Engineers, IPEM, the ...
2nd Micro and Nano Flows Conference (MNF2009), Akerman, S, Bjorndahl, MA, Evans, H, Fisher, M, Pettyjohn, KL, Reyes-Aldasoro, CC, Tozer, GM   +7 more
core  

Contrasting patterns of population structure in two habitat‐forming kelp species in southeastern Australia

Journal of Phycology, EarlyView.
Abstract The distribution and connectivity of species around the globe are changing at a rapid pace. Increasing sea temperatures are a driving factor of changes in temperate macroalgal distributions. Southeast Australia is considered a global ocean‐warming hotspot, where macroalgal populations are predicted to decline significantly by 2100.
Finn J. Ryder, William S. Pearman, Cayne Layton, Elahe Parvizi, Craig Johnson, Alecia Bellgrove, Ceridwen I. Fraser   +6 more
wiley   +1 more source