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Performance and wear mechanisms of different PcBN tools when machining superalloy AD730

Nickel-based superalloys are known to be difficult to machine. These alloys are generally machined with cemented carbide tools under low productivity process conditions. Superhard polycrystalline cubic boron nitride (PcBN) tooling offers the possibility of increased production rates, however, a thorough understanding of the material performance and degradation is required before a transition from

Multicomponent binders for PcBN performance enhancement in cutting tool applications

This study proposes a novel design of binders for polycrystalline cubic boron nitride (PcBN) cutting tool materials. Well-known binder phases TiC and TiN were combined with transitional metal nitrides ZrN, VN, and HfN. Performance screenings of longitudinal turning Inconel 718 and AISI 316 L highlighted the superior performance of PcBN materials with mixed TiC-ZrN and TiC-VN binders. These two sys

European Stroke Organisation guidelines on treatment of patients with intracranial atherosclerotic disease

The aim of the present European Stroke Organisation guideline is to provide clinically useful evidence-basedrecommendations on the management of patients with intracranial atherosclerotic disease (ICAD). The guidelines wereprepared following the Standard Operational Procedure of the European Stroke Organisation guidelines and accordingto GRADE methodology. ICAD represents a major cause of ischemic

Geometry-Based Clustering Characteristics for Outdoor Measurements at 28-30 GHz

This paper presents an analysis of channel characteristics for an outdoor scenario at the frequency band of 28-30 GHz. A geometry-based clustering algorithm is proposed to group the measured multipath components (MPCs) based on the interaction points on the surrounding walls or objects obtained from Ray Tracing 3-D simulations, which is more physically interpretable than the traditional clustering

Harmonic structure, a promising microstructure design

The harmonic structure is a recently introduced concept paving the way for engineering metallic materials to achieve excellent mechanical performance. They consist of soft coarse-grained regions (Core) that are three-dimensionally surrounded by a connected network of hard ultra-fine grained regions (Shell). The interaction in these Core–Shell regions produces a synergistic effect, during plastic d

A Study Protocol for Validation and Implementation of Whole-Genome and -Transcriptome Sequencing as a Comprehensive Precision Diagnostic Test in Acute Leukemias

Background: Whole-genome sequencing (WGS) and whole-transcriptome sequencing (WTS), with the ability to provide comprehensive genomic information, have become the focal point of research interest as novel techniques that can support precision diagnostics in routine clinical care of patients with various cancer types, including hematological malignancies. This national multi-center study, led by Ge

Introduction to Preschool During the Covid-19-Pandemic: Impacts of Social Restrictions on Staff-Family Relational Establishment

The social restrictions during the covid-19 pandemic have challenged many aspects of preschool everyday life. Particularly vulnerable to these restrictions is the aspect of introducing new children to preschool, since preschool introduction constitutes a natural arena for establishment of preschool staff’s relationships with children and their parents. Organizing the preschool introduction to enab

School Psychologists’ Assessment of the Use of Psychological Knowledge in Schools: Development of the Use of Psychological Constructs in Schools

Teaching and learning could be guided by psychological knowledge to a larger extent. The aims of this study were to examine school psychologists’ (N = 117) assessments of how psychological constructs related to learning are being used by teachers in Swedish schools. In addition, we aimed to evaluate school psychologists’ awareness of teachers’ implementation of psychological knowledge. A theoretic

Mental Health Interests of Adolescents in Secondary Education

This study explores the relative interest in various mental-health topics among adolescents. The results of this study will be used to develop relevant information material for the age-group and for interested mental-health practitioners as well as teachers. The participating adolescents were between 13-19 (N = 2058) recruited through social media. In the sample 922 participants attended lower secThis study explores the relative interest in various mental-health topics among adolescents. The results of this study will be used to develop relevant information material for the age-group and for interested mental-health practitioners as well as teachers. The participating adolescents were between 13-19 (N = 2058) recruited through social media. In the sample 922 participants attended lower sec

Enhanced human T cell expansion with inverse opal hydrogels†

Advanced personalized immunotherapies still have to overcome several biomedical and technical limitations before they become a routine cancer treatment in spite of recent achievements. In adoptive cell therapy (ACT), the capacity to obtain adequate numbers of therapeutic T cells in the patients following ex vivo treatment should be improved. Moreover, the time and costs to produce these T cells sh

A controlled chamber study of effects of exposure to diesel exhaust particles and noise on heart rate variability and endothelial function

BACKGROUND: Adverse cardiovascular effects are associated with both diesel exhaust and road traffic noise, but these exposures are hard to disentangle epidemiologically. We used an experimental setup to evaluate the impact of diesel exhaust particles and traffic noise, alone and combined, on intermediary outcomes related to the autonomic nervous system and increased cardiovascular risk.METHODS: In

Investigation on the pressurized discharge performance from a liquid oxygen tank under different injected gas temperatures

Accurate prediction on the pressurized discharge performance is significant to the safety operation of cryogenic propellant system. In the present study, a two-dimensional numerical model is established to simulate the fuel outflow with high-temperature gas injection. Both the environmental heat invasion and interfacial phase change are detailedly considered. The volume of fluid method is used to

Fluid sloshing hydrodynamics in a cryogenic fuel storage tank under different order natural frequencies

Liquid hydrogen is a promising energy carrier due to its excellent performance. However, liquid hydrogen sloshing usually causes serious issues on its safety production, storage, transportation, application and management. To study fluid sloshing in cryogenic storage tanks, a numerical calculation model is developed with considerations of the environmental heat leakage and phase change occurring a

Rasifiering för massorna : Kunskapsanspråk om människoraser i 1800- och 1900-talens svenska uppslagsverk

The history of racial science, as it emerged in Sweden and in other European countries in the nineteenth and twentieth centuries, is a standard research topic today. But notions of race are not only produced in scholarly contexts; they are also generated in the mass media, popular culture, and politics. The history of racialisation cannot only be studied by focusing on academia, in other words. We

Contribution of child ABC-transporter genetics to prenatal MeHg exposure and neurodevelopment

BACKGROUND: There is emerging evidence that exposure to prenatal methylmercury (MeHg) from maternal fish consumption during pregnancy can differ between individuals due to genetic variation. In previous studies, we have reported that maternal polymorphisms in ABC-transporter genes were associated with maternal hair MeHg concentrations, and with children's early neurodevelopmental tests. In this st