220 research outputs found
Zur Relevanz einer kulturphilosophischen Deutung von Natur - eine kritische Perspektive auf die Renaturalisierung des Menschen am Beispiel von Geschlechtlichkeit
No full textGolus K. Zur Relevanz einer kulturphilosophischen Deutung von Natur - eine kritische Perspektive auf die Renaturalisierung des Menschen am Beispiel von Geschlechtlichkeit. In: Glitza R, Liggieri K, eds. Kultur und Bildung. Die Geisteswissenschaften und der Zeitgeist des Naturalismus. Kulturphilosophische Studien. Vol 3. Freiburg/München : Verlag Karl Alber; 2019: 214-218
Numerical Time Domain Modeling of Piezoelectric Transducers/ Sensors and Ultrasonic Wave Phenomena with the Piezoelectric Finite Integration Technique (PFIT)
No full textToday, the applications of piezoelectric materials in transducers/sensors are widespread, e. g., in pulse-echo systems in nondestructive testing (NDT) or medical imaging (sonography) with ultrasound. The goal of this work is to derive a numerical modeling tool for the development and optimization of piezoelectric transducers/sensors, and/or to get a deeper understanding of the wave propagation in piezoelectric materials applying computer simulations [1,2]. The piezoelectric effect is a linear effect and couples the governing equations of electromagnetics and elastodynamics [3,4].</p
Ultra-light and stable composite structure to support and cool the ATLAS pixel detector barrel electronics modules
No full textThe design of an ultra light structure, the so-called "stave", to support and cool the sensitive elements of the Barrel Pixel detector, the innermost part of the ATLAS detector to be installed on the new Large Hadron Collider at CERN (Geneva), is presented. Very high- dimensional stability, minimization of the material and ability of operating 10 years in a high radiation environment are the key design requirements. The proposed solution consists of a combination of different carbon-based materials (impregnated carbon-carbon, ultra high modulus carbon fibre composites) coupled to a thin aluminum tube to form a very light support with an integrated cooling channel. Our design has proven to successfully fulfil the requirements. The extensive prototyping and testing program to fully qualify the design and release the production are discussed
Gbit/s Data Transmission on Carbon Fibres
No full textData transmission at the upgraded Large Hadron Collider experiments, foreseen for mid 2020s, will be in the multi Gbit/s range per connection for the innermost detector layers. This paper reports on first tests on the possible use of carbon cables for electrical data transmission close to the interaction point. Carbon cables have the potential advantage of being light, having a low activation and easy integration into the detector components close to the interaction point. In these tests commercially available carbon fibres were used, in which the filaments had a very thin nickel coating. For these cables data rates beyond 1 Gbit/s over more than 1 m with an error rate of less than 10(-12) could be reached. The characteristics of the cables have been measured in terms of S-parameters and could be converted to a SPICE model. Some outlook on potential further improvements is presented.Data transmission at the upgraded Large Hadron Collider experiments, foreseen for mid 2020s will be in the multi Gbit/s range per connection for the innermost detector layers. This paper reports on first tests on the possible use of carbon cables for electrical data transmission close to the interaction point. Carbon cables have the potential advantage of being light, having a low activation and easy integration into the detector components close to the interaction point. In these tests commercially available carbon cables were used, in which the filaments had a very thin nickel coating. For these cables data rates beyond 1 Gbit/s over more than 1m with an error rate of less than 10^{-12} could be transmitted. The characteristics of the cables have been measured in terms of S-parameters and could be reproduced with a Spice model. Some outlook on potential further improvements is presented
Validation of Numerical Modeling for the Prediction of Elastic and Failure Behavior of Diamond Powder Filled Woven Composites
No full textProgress in the Assembly of the DELPHI VFT Pixel Detector
No full textThe Laboratory for Detector Development of the University of Wuppertal 1 is involved in mechanical construction and functionality tests of the DELPHI VFT pixel detector modules. The outline of the VFT's construction is given in [1], [2] and figure 1. The first step in the Wuppertal production line is the precise attachment of a ceramic support to the silicon detector using a special thermal conductive glue (Epotecny E 704). In a second step a four layer kapton equipped with capacitors is glued on top of the readout chips. It ensures the electronic connections from the pixel electronic to the front end readout. By measuring the precise orientation of the modules at different stages during production information on the final geometry is obtained. Comprehensive functionality tests of the final modules are performed. Wuppertal, June 1996 WUB 96-8 1 Fachbereich Physik, Universitat Wuppertal, Postfach 100 127 D-42097 Wuppertal, Germany 1 Pixel Detector Assembly The first step in the Wu..
Intracranial anti-tumour activity in melanoma brain metastases with encorafenib plus binimetinib: A multicenter, retrospective analysis
No full textAuthor Correction: Neoadjuvant immune checkpoint blockade in high-risk resectable melanoma
No full textAuthor Correction: Concurrent Intrathecal and Intravenous Nivolumab in Leptomeningeal Disease: Phase 1 Trial Interim Results
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