Suchergebnisse

Additive Fertigungsverfahren bieten durch den schichtweisen Aufbau von Bauteilen Vorteile gegenüber konventionellen Fertigungsverfahren. Die Vielzahl verschiedener additiver Fertigungsverfahren ist eine Herausforderung für die Identifikation eines optimalen Verfahrens für Funktionsbauteile. Der Beitrag stellt einen Ansatz zur Bewertung additiver Fertigungsverfahren vor, der zur Entscheidungsunterstützung bei der Auswahl des optimalen Verfahrens dient.
 
Being manufactured layer by layer, additive manufacturing technologies offer unique advantages compared to established manufacturing technologies. The large number of different additive manufacturing technologies makes it difficult to identify suitable technologies. This paper presents an approach for assessing additive manufacturing technologies, assisting in the selection of suitable additive manufacturing technologies.

COVID-19 recovery is an opportunity to enhance life chances by Building Back Better, an objective promoted by the UN and deployed politically at national level. To help understand emergent and intentional opportunities to Build Back Better, we propose a research agenda drawing from geographical thinking on social contracts, assemblage theory and the politics of knowledge. This points research towards the ways in which everyday and professional knowledge cocreation constrains vision and action. Whose knowledge is legitimate, how legitimacy is ascribed and the place of science, the media and government in these processes become sites for progressive Building Back Better. ; ERC

Abstract. Hydrogeochemistry of 10 hot springs in the Kangding district was investigated by analyzing cation and anion concentrations in the spring water. The water samples were collected in the 5 days after the Lushan MS = 7.0 earthquake, which occurred on 20 April 2013. The spring waters are classified into seven chemical types based on their hydrochemical compositions. Compared with hydrochemical data before the Lushan earthquake, concentrations of Ca2+, HCO3- and total dissolved solid (TDS) in water samples from the Guanding, Erdaoqiao, Gonghe, Erhaoying, Tianwanhe and Caoke springs significantly increased, which may be the result of a greater increase in groundwater from carbonate rocks, and water–carbonate rock interactions, enhanced by the increment of CO2. Concentrations of Na+, Cl- and SO42- in water samples from the Guanding, Zheduotang, Xinxing and Gonghe springs decreased, indicating a dilution of shallow waters. Concentrations of Na+ and SO42- in water samples from the Erhaoying spring water increased, which may be attributed to water–granite interactions enhanced by H2S. The results indicated that hydrochemical components of spring water could be used as an effective indicator for earthquakes.