1970 wurde der Song „Woodstock“ von Joni Mitchell geschrieben und zahlreichen Interpreten berühmt gemacht. Er zur Hymne damaligen „Counterculture“. Die Älteren unter uns können sich daran sicher noch erinnern. Politischer Hintergrund war Vietnamkrieg mit seinen unzähligen Opfern. Meist jüngere Menschen trafen zu Protestaktionen in aller Welt, um für Frieden auch tiefgreifende soziale kulturelle...

The distribution characteristics of the temperature below ceilings in curved tunnel fires have not been quantitatively studied. A small-scale was constructed this work to study maximum and longitudinal attenuation induced by a with natural ventilation. Different turning radiuses fire heat release rates were taken into account. results show that ceiling is hardly affected radius scenario where f...

A plane subsonic jet was subjected to periodic oscillations in the near nozzle region by a twin vane system. During excitation, the jet was found to spread significantly and entrain mass much more than its steady counterpart. Time averaged static pressure measured in the flow field with a disc probe exhibited prominent well defined suction regions different from that of a steady jet.

Tiara-like thiolated group 10 transition metal (Ni, Pd, Pt) nanoclusters have attracted extensive interest due to their fundamental scientific significance and potential application in a number of fields. However, the properties (e.g. the absorption) evolution with the ring size's increase was not investigated so far to our best knowledge, due to the challenge of obtaining a series of nanoclust...

A straightforward and very cost effective method is proposed to prototype electrodes using pressure sensitive adhesives (PSA) and a simple cutting technique. Two cutting methods, namely blade cutting and CO2 laser ablation, are compared and their respective merits are discussed. The proposed method consists of turning the protective liner on the adhesive into a stencil to apply screen-printing ...

The study of interactions of jet into cross flow at different longitudinal and transverse angles of jet was studied. The following components were designed and constructed: a low velocity wind tunnel to produce the uniform flow, a flat plate with a traverse injection system to simulate the jet injection, and a spatial rake to measure the total pressure. The tests were carried out at longitudina...

Turning carbon dioxide (CO2) into fuels and chemicals using chemical, photochemical, electrochemical, and enzymatic methods could be used to recycle large quantities of carbon. The enzymatic method, which is inspired by cellular CO2 metabolism, has attracted considerable attention for efficient CO2 conversion due to improved selectivity and yields under mild reaction conditions. In this review,...