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A method for identifying the material constants of an elastic/visco-plastic meterial under tensile impact loading is proposed. In this method, the Kalman filter and the finite element method are used together with a few test data. To obtain data for high strain rates, notched specimens are employed, because arbitrarily shaped specimens are available in this method. To increase the accuracy of iden
We evaluate proposed interpretations of previous X-ray emission spectroscopy (XES) data on liquid water. The split peak in the lone-pair orbital region has been interpreted in terms of either two different structural motifs, tetrahedral and distorted, or as due to core-hole-induced dissociative dynamics; here we add new data on a 1:1 H2O/D2O isotopic mixture and additional spectrum simulations inc
The structure of liquid water is presently under intense debate. We summarize the historical development of the present description of water and the controversy surrounding the X-ray absorption spectroscopy (XAS) study of Wernet et al. [Ph. Wernet et al., Science 304 (2004) 995]. In order to provide further insight into the connection between X-ray spectroscopy and the structure of the hydrogen bo
After the WWI Battle of Jutland in 1916, hundreds of dead British and German marines drifted ashore on the beaches of the region of Bohuslän in western Sweden. They were buried in local cemeteries, until the remains of most of the soldiers were reburied in Gothenburg in the 1960s. The chapter focuses on two local Bohuslän memory cultures in relation to the sailors and their graves. It seeks to ide
SEVEN (Supercompact Electric Vehicle National) is a research project of Universidad Nacional de Colombia. The main goal is to design a electric "concept car" for shared use. The SEVEN vehicle is designed with characteristics of the industry 4.0: autonomous vehicle level III, interconnected (IoT) and can be manufactured flexibly, on demand by rapid manufacturing of 3D printing.
The adipose organ, including white and brown adipose tissues, is an important player in systemic energy homeostasis, storing excess energy in form of lipids while releasing energy upon various energy demands. Recent studies have demonstrated that white and brown adipocytes also function as endocrine cells and regulate systemic metabolism by secreting factors that act locally and systemically. Howe
IntroductionIn this book a new phenomenological approach to brittle medium fracture initiation under shock pulses is developped. It provides an opportunity to estimate fracture of media with and without macrodefects. A qualitative explanation is thus obtained for a number of principally important effects of high-speed dynamic fracture that cannot be clarified within the framework of previous appro
The Nordic region, comprising primarily Denmark, Estonia, Finland, Iceland, Norway and Sweden, has many of the necessary characteristics for being at the forefront of genome-based precision medicine. These include egalitarian and universal healthcare, expertly curated patient and population registries, biobanks, large population-based prospective cohorts linked to registries and biobanks, and a wi
Introduction: We assessed whether modest systemic cooling started within 6 hours of symptom onset improves functional outcome at three months in awake patients with acute ischaemic stroke. Patients and methods: In this European randomised open-label clinical trial with blinded outcome assessment, adult patients with acute ischaemic stroke were randomised to cooling to a target body temperature of
This paper, a revised presentation at a panel on academic exchanges at the 2018 Conference of the Society for Romanian Studies, discusses the challenges of researchers studying small, insignificant places, and particularly when our specific knowledge pushes us to become generalists. Since every country has a ‘La noi ca la nimeni’ (‘Nobody has it the way we have it’) discourse, how do we make Roman
Aims/hypothesis: The mechanisms for improved glycemic control after bariatric surgery in subjects with type 2 diabetes (T2D) are not fully known. We hypothesized that dynamic hepatic blood responses to a mixed-meal are changed after bariatric surgery in parallel with an improvement in glucose tolerance. Methods: A total of ten morbidly obese subjects with T2D were recruited to receive a mixed-meal
It is well-known that the response to mechanical loading of nano-sized metal structures differs from what applies to the macroscopic scale, and often non-intuitive behaviors are revealed. Here beams of square cross section, containing defects in terms of voids and loaded in fatigue with R = 0 under displacement controlled conditions, are investigated. The structures under consideration are single-It is well-known that the response to mechanical loading of nano-sized metal structures differs from what applies to the macroscopic scale, and often non-intuitive behaviors are revealed. Here beams of square cross section, containing defects in terms of voids and loaded in fatigue with R = 0 under displacement controlled conditions, are investigated. The structures under consideration are single-
In the present paper, an experimental campaign is carried out with reference to the steady state propagation of an existing cut in polymeric plates, ranging from glassy to soft polymers. The steady state propagation is investigated by considering a commercial cutting tool under different insertion velocities of the blade. Full-field finite strain maps are experimentally recorded by means of digita
Recently, 3D X-Ray Diffraction (3DXRD) has been proposed as a new tool for experimental granular mechanics. The technique enables measurements of tensor strains of all the individual grain in granular assemblies under load. From the grain-strains, granular stresses can be determined and, in combination with structural information from x-ray tomography, contact forces can be inferred, thereby eluci
Towards the improvement of the understanding of force/stress distribution in granular media under load, a new experimental approach is suggested. Neutron diffraction, a non-conventional experimental technique, has been successfully used to map the evolution of intragranular strains in sand specimens loaded in a novel plane-strain apparatus. Representative preliminary results from recent experiment
In this review, we present an up-to-date phenomenological summary of research developments in the physics of the Quark-Gluon Plasma (QGP). A short historical perspective and theoretical motivation for this rapidly developing field of contemporary particle physics is provided. In addition, we introduce and discuss the role of the quantum chromodynamics (QCD) ground state, non-perturbative and latti
