806 research outputs found
Author Leigh Roethke will discuss her debut book Minnesota's Capitol
No full textButt, Leanne. (2005). Author Leigh Roethke will discuss her debut book Minnesota's Capitol. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/220718
Author Leigh Roethke will discuss her debut book Minnesota's Capitol at the University of Minnesota
No full textButt, Leanne. (2005). Author Leigh Roethke will discuss her debut book Minnesota's Capitol at the University of Minnesota. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/220707
Author Will Weaver discusses his book Barns of Minnesota at the University of Minnesota Crookston Bookstore.
No full textButt, Leanne. (2005). Author Will Weaver discusses his book Barns of Minnesota at the University of Minnesota Crookston Bookstore.. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/220556
Author and retired UMC professor Gene Miller will discusses his book Thinking of You at the University of Minnesota Crookston Bookstore.
No full textButt, Leanne. (2005). Author and retired UMC professor Gene Miller will discusses his book Thinking of You at the University of Minnesota Crookston Bookstore.. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/220560
Isreal Shank and Len Butt
No full textPhotograph - Past president Isreal C. Shank congratulates newly-elected president Len Butt at the annual meeting of the Canadian Gladiolus society, on August 15, 1980, Bowmanville, Ontari
Near-capacity iterative decoding of binary self-concatenated codes using soft decision demapping and 3-D EXIT charts
No full textIn this paper 3-D Extrinsic Information Transfer (EXIT) charts are used to design binary Self-Concatenated Convolutional Codes employing Iterative Decoding (SECCC-ID), exchanging extrinsic information with the soft-decision demapper to approach the channel capacity. Recursive Systematic Convolutional (RSC) codes are selected as constituent codes, an interleaver is used for randomising the extrinsic information exchange of the constituent codes, while a puncturer helps to increase the achievable bandwidth efficiency. The convergence behaviour of the decoder is analysed with the aid of bit-based 3-D EXIT charts, for accurately calculating the operating EbN0 threshold, especially when SP based soft demapper is employed. Finally, we propose an attractive system configuration, which is capable of operating within about 1 dB from the channel capacity
Antonio Regalado García: El siervo y el señor
No full text[ES] Reseña del libro "El siervo y el señor" de Antonio Regalado García. Según John Butt no aporta nada nuevo sobre Unamuno, en definitiva no es un buen estudio.[EN] Review of the book "The servant and lord" of Antonio Regalado Garcia. According to John Butt, the author adds nothing new about Unamuno, ultimately is not a good study
Trial and Condemnation of Charles E. Butt, for the willful murder of sweetheart
No full textCharles E. Butt kills his fiance, Amelia Phipps, who won\u27t wed him.https://egrove.olemiss.edu/kgbsides_uk/2152/thumbnail.jp
Experimental and numerical study of butt welded joints made of high strength steel
No full textWelded joints are wildly used in the construction sector for fabrication of steel and aluminium structures. A welded joint is traditionally divided into three regions: The Base Material (BM), the Heat-Affected Zone (HAZ), and the Weld Material (WM). The mechanical behaviour of each region varies depending on properties of BM, FM and welding parameters. In general, HAZ has a lower material strength compared to BM and WM. The material strength difference is even more significant if BM is made of High Strength Steel (HSS) and welded by using undermatching electrodes. Therefore, it is essential to obtain the constitutive model of HAZ to accurately predict the behaviour (strength, stiffness, and ductility) of the HSS welded joint. In this paper, milled coupon specimens with a transverse butt weld in the middle are used for obtaining the original stress-strain relationship of HAZ and WM based on Digital Image Correlation (DIC) measurements. The original and the modified HAZ constitutive model are validated against the milled and unmilled coupon specimens by Finite Element Analysis (FEA). Comparing the FEA and experimental results, it can be concluded that the modified HAZ constitutive model is successfully validated. Finally, the tensile behaviour of the butt-welded square hollow section is investigated through FEA. It is found that the peak deformation would be significantly overestimated if the modified HAZ constitutive model is not used.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Steel & Composite Structure
Laser butt welding of thin stainless steel 316L sheets in asymmetric configurations: A numerical study
No full textLaser butt welding of thin metal sheets is a widely used fusion-based joining technique in industrial manufacturing. A comprehensive understanding of the complex transport phenomena during the welding process is essential for achieving high-quality welds. In the present work, high-fidelity numerical simulations are employed to investigate the influence of various symmetric and asymmetric welding configurations on the melt-pool behaviour in conduction-mode laser butt welding of stainless steel sheets. The analysis focuses on the effects of laser power density, heat source misplacement and different welding scenarios, including plates with a root gap, high-low mismatches, and dissimilar thicknesses, on the molten metal flow and heat transfer. The results show that advection is the dominant mechanism for energy transfer in the melt pool, and its contribution increases with higher laser power. The non-uniform temperature distribution over the melt-pool surface induces Marangoni shear forces, driving the flow of molten metal and leading to the formation of vortices and periodic flow oscillations within the pool. The effects of various types of asymmetries on the thermal and molten metal flow fields, as well as the process stability, are thoroughly examined and compared with symmetrical welding configurations. These comprehensive simulations provide valuable insights into the fluid flow dynamics and thermal field evolution during laser butt welding of thin metal sheets. The knowledge gained from this study can facilitate process optimisation and guide the improvement of weld quality in practical applications.Team Marcel Herman
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