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A transient finite strain viscoplastic model is implemented in a gradient-based topology optimization framework to design impact mitigating structures. The model's kinematics relies on the multiplicative split of the deformation gradient, and the constitutive response is based on isotropic hardening viscoplasticity. To solve the mechanical balance laws, the implicit Newmark-beta method is used tog

Överliggare är något som Lunds universitet har haft gott om, och deras namn skymtar förbi som skuggor från en förfluten punschdoftande tid; ”Den Siste Athenaren” Otto Steiman, Sam Ask, Adolf Herrlin – listan kan göras lång. Likaså har Lunds universitet haft gott om akademiska original, både sådana som gjort karriär, och sådana som aldrig ens tagit en examen.Arkivarien vid universitetsarkivet HenriLund has had its fair share of eternal students, and their names appear like shadows from an arrack punch-flavoured past: “The Last Athenian” Otto Steiman, Sam Ask, Adolf Herrlin – the list goes on. Similarly, Lund University has had many academic eccentrics, both of the kind who made a career for themselves and the kind who never even completed a degree. Here, University archivist Henrik Ullstad

Separately collected urine is an attractive potential fertilizer because of its high nutrient content, low cost, and inherent linkage of urban wastewater management and peri-urban agriculture. Urine from waterless urinals was applied to corn and lettuce plants to examine the impact of urine application rates and frequency on plant growth and soil parameters. In both corn and lettuce experiments, u

Sustainable business model innovation is about creating superior customer and firm value by addressing societal and environmental needs through the way business is done. Business models require intentional design if they are to deliver aspired sustainability impacts. Scant research has been done on ‘ecologies’ of different business models in order to understand and improve these and create positiv

Due to their wide adaptability to different application fields spanning from opinion dynamics to biology, the analysis of evolutionary dynamics is a compelling problem in the science of networks and systems. In this paper, we deal with controlled evolutionary dynamics in networks. We discuss a novel approach to model these phenomena, which enables us to estimate the duration of the process dependi

BackgroundLignin is a potential feedstock for microbial conversion into various chemicals. However, the microbial degradation rate of native or technical lignin is low, and chemical depolymerization is needed to obtain reasonable conversion rates. In the current study, nine bacterial strains belonging to the Pseudomonas and Rhodococcus genera were evaluated for their ability to grow on alkaline-tr

A young woman was admitted to hospital with suspected pyelonephritis. Due to prolonged fever, further investigations were done and showed a thrombosis in her femoral vein; X-ray and lung scintigraphy revealed a pulmonary embolism. Blood tests showed lymphocytosis, and a primary cytamegalovirus (CMV) infection was confirmed by serology and PCR. The patient was a smoker and obese and was taking oral

This article aims to highlight how literary value is constructed today: how it is created and negotiated. It seeks to develop a perspective that considers the manifold and complex value­negotiation process. In accordance with Barbara Herrnstein Smith, the article argues that literary value is generated by a constant and continuous series of negotiations between production and sale: the institution

During development primary afferents grow into and establish neuronal connections in the spinal cord, thereby forming the basis for how we perceive sensory information and control our movements. In the somatosensory system, myriads of primary afferents, conveying information from different body locations and sensory modalities, get organized in the dorsal horn of the spinal cord so that spinal mul

Since Abney (1987), generative syntax has invested much interest in the structure of the Noun Phrase, producing numerous theoretical as well as descriptive studies. Within the field of Scandinavian Noun Phrase studies, Delsing (1993) was a groundbreaking work that has since been followed up by several important studies, including Vangsnes et al. (2003) and Julien (2005). This field of inquiry is e

With a method relying on measurements of water vapour flow from a specimen and on measurements of distribution of relative humidity in the specimen at steady state conditions, it is possible to calculate the moisture permeability. Its dependence on relative humidity is presented.

Epilepsi är den vanligaste neurologiska sjukdomen efter stroke och huvudvärk, ca 60 000 personer har aktiv epilepsi i Sverige. Vi har idag tillgång till en rad mycket effektiva läkemedel, bara sedan 1989 har åtta nya epilepsimediciner registrerats. Trots den utvidgade behandlingsarsenalen bli bara två av tre patienter anfallsfria av läkemedel, för en tredjedel fortsätter anfallen att komma. Vid fa