4,031,322 Works

Minimization of road network travel time by prohibiting left turns at signalized intersections

Qinrui Tang
Left turns have potential efficiency problems. The prohibition of left turns is explored as means of shortening total travel time and improving overall efficiency performance. The objective of this thesis is to explore whether prohibiting left turns can improve the efficiency of urban road networks using existing infrastructure. Improving the efficiency refers to reducing the travel time of all vehicles in the network. A model is proposed to determine the effects of left turn prohibition...

Gesamtdokumentation des ZIM-Projekts "Direktverputzte Strohballenbauteile für die Gebäudeklasse 4" - Teilprojekt "Brandschutztechnische Untersuchungen": Förderkennzeichen: KF 2178804 KI0

Institut Für Baustoffe, Massivbau Und Brandschutz (Braunschweig), Dietmar Hosser, Jochen Zehfuß & Judith Wachtling
Der Abschlussbericht fasst die Ergebnisse der brandschutztechnischen Untersuchungen an direktverputzen Strohballenbauteilen für die Gebäudeklasse 4 zusammen. So kann den Gefahren, resultierend aus der Verwendung brennbarer Dämmstoffe in der Bauteilebene, durch Brandschutzbekleidungen mit erhöhten Anforderungen begegnet werden. Zur Quantifizierung dieser erhöhten Anforderungen wurde die Grenztemperatur der thermischen Zersetzung von Strohballen ermittelt. Sie beträgt 200 °C. Im Forschungsvorhaben wurden zur Erfüllung der ermittelten Anforderungen Brandschutzbekleidungen aus Lehm und Kalk als ökologische Alternativen zu Gipsbekleidungen entwickelt. Weiter wurden...

Entwicklung einer API-Produktionsplattform mittels CRISPR/Cas9 auf Basis einer CHO Zelllinie

Simon Schröder
Der Markt monoklonaler Antikörper (mAb) ist in Bezug auf Vielfalt und Produktionsmenge in den letzten Jahren stark gewachsen [1]. Um die daraus resultierende steigende Nachfrage nach mAbs bedienen zu können, ist es notwendig gute Produktionsplattformen, die den qualitativen Ansprüchen in ausreichender Quantität gerecht werden, für den Markt bereit zu stellen [2]. Diese Dissertation zeigt, wie mit Hilfe der clustered regularly interspaced short palindromic repeats (CRISPR) Methode, durch Ausschalten eines Gens der Wirtzelle, eine Produktionsplattform generiert...

Respiratory trigger signal generation by means of a stretchable sensor array

Eugen Koch & Andreas Dietzel
Respiratory monitoring is a clinical method which helps to examine the medical condition of patients. Patients diagnosed with types of respiratory distress are often supported through artificial respiration. To be able to adapt and synchronize airway pressures and flows to the patient’s own breathing for improved respiration efficiency, intelligent sensors are needed to detect the beginning and ending of the breathing cycle. An ultra-thin and stretchable 6x6 sensor array with skin-like properties is presented that...

Skin attachable flexible sensor array for respiratory monitoring

Eugen Koch & Andreas Dietzel
Flexible electronic systems became increasingly popular in recent years. They usually can be bent or even stretched while fully maintaining their functionality opening up a wide field of various new applications. In this paper a novel 6x6 sensor array for curvature sensing in the format of a thin flexible polyimide foil is introduced. The sensor foil is to be used for respiratory monitoring of premature infants by directly attaching it to the skin for measuring...

Surface reconstruction by means of a flexible sensor array

Eugen Koch & Andreas Dietzel
In recent years, an increasing popularity of flexible sensor systems has been observed, which can largely be attributed to their ability to continuously adapt the shape to deformable bodies with non-planar surfaces without losing functionality. In this paper, we present a self-sensing, ultra-thin and flexible sensor array foil, which allows for determining its actual shape by analyzing signals from 6x6 sensors. Raw sensor signals clearly show the dependence from strength and direction of bending. The...

Waterproof sensor system for simultaneous pressure and hot-film flow measurements

Martin Schwerter, Monika Leester-Schädel & Andreas Dietzel
For simultaneous measurement of pressure and near surface flow conditions allowing indirect determination of wall shear stress in experimental water tunnel environment an integrated hybrid sensor system has been developed. In contrast to known approaches, which are limited to the use in gas atmosphere due to protruding electrical and fragile parts, our sensor system is waterproof shielded and embedded in epoxy resin. Furthermore an amplification circuit for the pressure signal based on a programmable gain...

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