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Giant days : extra credit. Volume one
Head back to school with Esther, Susan, and Daisy in this collection of shorts and bonus material from Eisner-nominated series Giant Days. Featuring \"universally beloved\" terror Desmond Fishmen, the magic of London at Christmastime, off-beat music festivals, and an extra-special what-if story in which Susan, Esther, and Daisy never became friends!
BOOK
Integrated computational materials engineering: A perspective on progress and future steps
ICME is defi ned as \"the integration of materials information, represented in computational tools, with engineering product performance analysis and manufacturing-process simulation.\"5 In its most well developed forms, ICME holistically integrates science and engineering as well as the results of theory, experiments, and simulations into computational tools that can be used directly in engineering of new products or manufacturing processes.
Journal Article
Current Legal Fictions in Public Law
Abstract
The use of legal fiction in public law has shown no sign of abating, as demonstrated in the enactment of the Safety of Rwanda (Asylum and Immigration) Act 2024. Accompanying questions or concerns are about the degree to which they are problematic, useful, or detrimental, what is to be done about them, and whether their prevalence is specific to British or English legal culture. This article examines what has been done, or what has happened, to deal or to cope with them, in orthodox constitutional legal doctrine and administrative law liability. After adopting a working definition of legal fiction and showing Dicey’s own preoccupation with the constitution’s legal forms and fiction, it does so through two case studies. Both involve basic orthodox constitutional legal doctrines—parliamentary sovereignty and the rule of law—with which Dicey has long been associated. The one case study is of Parliament’s sovereignty, limitless in law, and limited in actuality. The other case study is of legal fiction in relation to developments in public authority liability under equality before the law, particularly for omissions, or non-conferrals of benefit. Through these studies, this article will argue that the fortunes of legal fiction in the British or English legal context have been not simply of all-or-nothing rejection or retention. They have been, because of the unease accompanying the use of legal fiction, also of their domestication, in analytical distinctions, and refinement of judicial language in common law reasoning. The extraordinary legal forms have been made more ordinary or so to appear, showing them as domesticated to have been and to remain of current, ongoing and present, relevance.
Journal Article
Governing urban economies : innovation and inclusion in Canadian city-regions
Governing Urban Economies is the first detailed scholarly examination of relations among governmental and community-based actors in Canadian city-regions. Comparing patterns of municipal-community relations and federal-provincial interactions across city-regions, this volume tracks the ways in which urban coalitions tackle complex economic and social challenges. Featuring an inter-disciplinary group of established and up-and-coming scholars, this collection breaks new ground in the Canadian urban politics literature and will appeal to urbanists working in a range of national contexts.\"--pub. desc.
Book
The influence of section diameter on the ultrasonic fatigue response of 316L stainless steel manufactured via laser powder bed fusion
In this investigation, the influence of section diameter on high cycle fatigue (HCF) behavior of additively manufactured 316 L stainless steel was characterized. Three gauge-section diameters (5.0 mm, 2.5 mm, and 1.5 mm) were examined for their influence on the ultrasonic fatigue response of samples built via laser-powder bed fusion (L-PBF). HCF was conducted under full reversed loading (
R=−1
) conditions. A total of 130 specimens were characterized in the as-built state at maximum stresses ranging from 70 to 220 MPa. A Random Fatigue Limit (RFL) model using a Maximum Likelihood Estimation (MLE) was used to quantify statistical variability and estimate an S-N curve fit. The fatigue response shows that the largest gauge diameter (5.0 mm) resulted in the lowest fatigue strength at 89.5 ± 5.6 MPa, and the smallest diameter (1.5 mm) resulted in the highest fatigue strength at 122.0 ± 32.8 MPa. The 2.5 mm diameter specimens exhibited a fatigue strength of 98.7 ± 7.0 MPa. The primary failure mechanism in all as-built specimens was surface initiated cracking from crevices in the as-built surface finish. Additional specimens with a nominal diameter of 5.0 mm were fatigue tested with the as-built surface removed via low stress surface grinding. The fatigue strength of these samples increased to 170 MPa when 75 μm of the surface was removed and 179 MPa when the surface contour was entirely removed. Residual stresses were characterized by x-ray diffraction (XRD) and show a reduced axial residual stress with reduction in gauge diameter. Additional specimens were fatigue tested after undergoing a stress relief anneal, resulting in a 51% reduction in the residual stress and a 30% improvement in fatigue strength. An in-depth analysis of the microstructure, surface roughness, defects, and fracture surface indicate that both the surface condition and residual stress are the primary factors influencing the observed diameter effects on HCF.
Journal Article
Giant days
\"Susan, Esther, and Daisy started at university three weeks ago and became fast friends. Now, away from home for the first time, all three want to reinvent themselves. But in the face of hand-wringing boys, \"personal experimentation,\" influenza, mystery-mold, nu-chauvinism, and the willful, unwanted intrusion of \"academia,\" they may be lucky just to make it to spring alive. Going off to university is always a time of change and growth, but for Esther, Susan, and Daisy, things are about to get a little weird.\"--Amazon.com.
Book
Multiscale in-situ characterization of static recrystallization using dark-field X-ray microscopy and high-resolution X-ray diffraction
Dark-field X-ray microscopy (DFXM) is a high-resolution, X-ray-based diffraction microstructure imaging technique that uses an objective lens aligned with the diffracted beam to magnify a single Bragg reflection. DFXM can be used to spatially resolve local variations in elastic strain and orientation inside embedded crystals with high spatial (~ 60 nm) and angular (~ 0.001°) resolution. However, as with many high-resolution imaging techniques, there is a trade-off between resolution and field of view, and it is often desirable to enrich DFXM observations by combining it with a larger field-of-view technique. Here, we combine DFXM with high-resolution X-ray diffraction (HR-XRD) applied to an in-situ investigation of static recrystallization in an 80% hot-compressed Mg–3.2Zn–0.1Ca wt.% (ZX30) alloy. Using HR-XRD, we track the relative grain volume of > 8000 sub-surface grains during annealing in situ. Then, at several points during the annealing process, we “zoom in” to individual grains using DFXM. This combination of HR-XRD and DFXM enables multiscale characterization, used here to study why particular grains grow to consume a large volume fraction of the annealed microstructure. This technique pairing is particularly useful for small and/or highly deformed grains that are often difficult to resolve using more standard diffraction microstructure imaging techniques.
Journal Article
Coupling Thermomechanical Processing and Alloy Design to Improve Textures in Mg-Zn-Ca Sheet Alloys
The effect of Ca and Zn additions on the microstructure and texture evolution during thermomechanical processing of Mg-Zn-Ca sheet alloys was systematically investigated and quantified. Plane strain compression testing in a Gleeble thermomechanical simulator was used to physically simulate a 10-pass rolling schedule, while allowing for careful control and monitoring of the processing parameters. Textures in the as-deformed ternary alloy samples demonstrate a weak maximum basal intensity and spreading in the transverse direction. Increasing the Zn content to 3.2 wt.% in the ternary alloys resulted in samples that exhibited weak textures in the as-deformed state. Importantly, static recrystallization (SRX) during post-deformation annealing of these alloys promoted a desirable annular texture, with the
c
-axis tipped from the normal direction and a lower basal texture intensity. The evolution in texture during SRX is associated with as-deformed microstructures with broad grain orientation spreads and a low degree of recrystallization.
Journal Article