The New Istanbul Grand Airport (IGA) Status

Mr Irfan Gündüz started his speech by stating that the Istanbul Grand Airport (IGA) is aimed to be opened in the beginning of 2018. He further stated the new airport project is conducted on a Build-Operate-Transfer (BOT) basis. The airport will be managed by the company for 25 years before it is transferred to another company in 2043. He thinks that IGA will fulfill both airlines’s and ground handling company’s as well as passengers’ needs.İrfan Gündüz konuşmasına İstanbul Grand Airport (IGA)’nın 2018 yılında açılmasının amaçlandığını ve yeni havaalanı projesinin Yap-İşlet-Devret sistemiyle sürdürüleceğini belirterek başladı. Şirketleri 25 yıllık işletme sürecinden sonra 2043 yılında havaalanının işletmesini başka bir şirkete aktaracak. İrfan Gündüz projenin hem havayolu ve yer şirketlerinin, hem de yolcuların ihtiyaçlarını karşılayacağını düşünüyor

Microstructure and mechanical properties of stable austenitic steel after thermomechanical treatment

The features of microstructure and mechanical properties of stable austenitic steel after thermomechanical treatment consist of low-temperature deformation, warm deformation and subsequent annealing have been investigated. It is shown that under these conditions in the steel direct (γ → α')- and inverse (α' → γ)-martensitic transformations are realized. As a result of the thermomechanical treatment submicrocrystalline structural states with a high density of micro- and nanotwins and localized deformation bands are formed. The yield strength of these structural states more than 3 times increases by the original value

CMC Materials for Aircraft Brakes

Übersucht zur Herstellung von C/C-SiC und dessen Werkstoffeigenschaften. Entwicklung von Reibbelägen für Airbus A 400M. Neue Preformtechniken und Sandwichsrukturen für Bremsscheiben

Influence of Fiber Type on the Properties of Short-Fiber Based C/C-SiC

Originally developed for heat shields and hot structures of space vehicles, C/C-SiC materials were adapted to be applied as lightweight, high performance brake discs for automotive use. Thereby, costly fiber preforms based on woven fabrics, typically used for thin walled aerospace structures, were replaced by cut fiber rovings, leading to economic as well as technical advantages. Press masses with randomly oriented short fibers and powdery phenolic resin offer a high flowability and even thick-walled parts with complex shaped geometries, like internally ventilated brake discs in single piece design, can be manufactured economically in near net shape technique. In a new approach, short-fiber based C/C-SiC materials have been further developed for the use in space propulsion systems, where high mechanical and thermal loads are a challenge. In order to meet these requirements, the commonly used high tenacity (HT) fibers were replaced by intermediate modulus (IM) and pitch based ultrahigh modulus (UHM) carbon fibers with a fiber length of 10 mm. The resulting C/C-SiC materials showed different microstructures with significantly different phase composition. Compared to HT based C/C-SiC, strength an elastic modulus were increased by UHM fibers, whereas the use of IM fibers lead to higher fracture strain. The manufacture of the sample plates as well as the influence of the fiber type on the mechanical properties is presented in detail

The development of a concept project unloading complex in a coal terminal in the software solidworks

Разработана компьютерная компоновочная модель разгрузочного комплекса. Произведено моделирование движения машин и узлов, соответствующее технологическим процессам протекающим при работе комплекса.A computer layout model of the unloading complex was designed. Motions of machines and units, corresponding to technological process operates when the complex works were simulated

Practical examination of bystanders performing Basic Life Support in Germany: a prospective manikin study

<p>Abstract</p> <p>Background</p> <p>In an out-of-hospital emergency situation bystander intervention is essential for a sufficient functioning of the chain of rescue. The basic measures of cardiopulmonary resuscitation (Basic Life Support – BLS) by lay people are therefore definitely part of an effective emergency service of a patient needing resuscitation. Relevant knowledge is provided to the public by various course conceptions. The learning success concerning a one day first aid course ("LSM" course in Germany) has not been much investigated in the past. We investigated to what extent lay people could perform BLS correctly in a standardised manikin scenario. An aim of this study was to show how course repetitions affected success in performing BLS.</p> <p>Methods</p> <p>The "LSM course" was carried out in a standardised manner. We tested prospectively 100 participants in two groups (<b>Group 1: </b>Participants with previous attendance of a BLS course; <b>Group 2: </b>Participants with no previous attendance of a BLS course) in their practical abilities in BLS after the course. Success parameter was the correct performance of BLS in accordance with the current ERC guidelines.</p> <p>Results</p> <p>Twenty-two (22%) of the 100 investigated participants obtained satisfactory results in the practical performance of BLS. Participants with repeated participation in BLS obtained significantly better results (<b>Group 1: </b>32.7% vs. <b>Group 2: </b>10.4%; p < 0.01) than course participants with no relevant previous knowledge.</p> <p>Conclusion</p> <p>Only 22% of the investigated participants at the end of a "LSM course" were able to perform BLS satisfactorily according to the ERC guidelines. Participants who had previously attended comparable courses obtained significantly better results in the practical test. Through regular repetitions it seems to be possible to achieve, at least on the manikin, an improvement of the results in bystander resuscitation and, consequently, a better patient outcome. To validate this hypothesis further investigations are recommended by specialised societies.</p

Carbon Fibre Reinforced SiC Materials Based on Melt Infiltration

For the manufacture of carbon fibre reinforced SiC materials, three different processes are used in principle: Chemical Vapour Infiltration (CVI), Liquid Polymer Infiltration (LPI), also called Polymer Infiltration and Pyrolysis (PIP) as well as Melt Infiltration or Liquid Silicon Infiltration (MI / LSI). Depending on the differ-ent methods for building up the SiC-matrix and embedding the carbon fibres in the brittle ceramic matrix, the resulting C/SiC and C/C-SiC materials vary significantly in their properties as well as in their manufacturing costs. The advantages of the MI processes are their short manufacturing times and the use of low cost raw materials, leading to the most cost efficient Ceramic Matrix Composites (CMC), compared to materials de-rived from CVI and PIP. In combination with their unique thermal and mechanical properties, MI based CMC`s opened up a wide field of new applications beyond aerospace. This presentation gives an overview of the manufacturing processes and resulting properties of C-fibre rein-forced SiC materials. Typical applications of C/C-SiC or C/SiC materials based on MI processes, like friction materials, hot structures for solid propellant rocket motors and temperature stable structures for optical tele-communication systems are presented