Results 91 to 100 of about 1,834,169 (290)

Multiobjective Optimization of CRH3 EMU Wheel Profile

Advances in Mechanical Engineering, 2015
The wheel-rail wear problems inherent to railway operation have become increasingly prominent and serious, as they have been proven to be the main factors which affect safety, stability of electric multiple units (EMUs), and wheel-rail maintenance cost ...
Fengtao Lin, Xiaoqing Dong, Yueming Wang, Chunshuang Ni   +3 more
doaj   +1 more source

Home school student visit and introduction to rail transportation and engineering. [PDF]

NURail2012-UIUC-E01DTRT12-G-UTC18 (Grant 1)This project consisted of hosting local Champaign-Urbana, Illinois home school students for a visit tothe Rail Transportation and Engineering Center (RailTEC) at the University of Illinois at Urbana-Champaign ...
University of Illinois at Urbana-Champaign. Rail Transportation and Engineering Center, Edwards, J. Riley   +1 more
core  

High‐Performance UV Photodetectors Based on ZnO Hierarchical Nanostructures Grown on Aerosol‐Printed 3D Ag Mesh

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
First integration of ZnO nanorods with aerosol‐printed 3D Ag meshes for UV photodetector. 3D Ag/ZnO enhances light absorption and charge separation by providing a large active surface area for efficient charge generation and a strong UV response.
Elius Hossain, Jin‐Sol Lee, Md. Abu Mosa, Kye‐Si Kwon   +3 more
wiley   +1 more source

Analysis of Wheel Wear and Wheel-Rail Dynamic Characteristics of High-Speed Trains under Braking Conditions

Shock and Vibration
When high-speed trains operate under braking conditions, the wheel-rail interaction increases significantly, which can lead to more serious wear problems.
Rui Song, Chenxu Lu, Lixia Sun, Zhongkai Zhang, Dilai Chen, Gang Shen   +5 more
doaj   +1 more source

The influence of worn and nominal rail profiles on railway vehicle motion and dynamics [PDF]

Archives of Civil Engineering
In this study the rail wear influence on safety of rail vehicle motion is assessed. The profile measurements for the nominal rail head and for the slightly worn and heavily worn rail heads were performed.
Krzysztof Zboinski, Jacek Kukulski, Milena Gołofit-Stawinska, Piotr Woznica   +3 more
doaj   +1 more source

A Numerical Investigation of the Effects of Piston Bowl Geometry and Spray Angle on Combustion, Performance and Emission of a Diesel Engine

Energy Science &Engineering, EarlyView.
A piston bowl's design and spray angle improve air‐fuel mixing, resulting in more complete combustion and higher efficiency. Ansys Forte 2023 R1 a CFD software was used to analyze the effects of five combustion chamber geometries of cylinder, modified re‐entrant, re‐entrant, double‐stepped, and stepped on engine performance, combustion, and emission ...
Md. Nazmul Haque, Abdullah Al Rifat, Tafsirul Hassan, Md. Ifthaker Alam, Mohammad Mehedi Hasan Kazol, Md. Ashraful Islam, Abidur Rahman Adib, Mizanur Rahman   +7 more
wiley   +1 more source

Definition of composite profiles for the needs of a dynamic analysis of a rail vehicle

MATEC Web of Conferences, 2019
When modelling the dynamics of a rail vehicle ride, one of the important input parameters is the profile geometry of the wheel and rail treads. Commonly available simulation programs have databases containing some standardized profiles, or allow the ...
Hauser Vladimír, Gerlici Juraj, Kravchenko Kateryna, Lack Tomáš, Loulová Mária, Potapenko Olha A.   +5 more
doaj   +1 more source

Finalisation of the European Approach to Assess the Fire Performance of Facades—Brief Information on the Outcome of the Project

Fire and Materials, EarlyView.
ABSTRACT This research was conducted within the framework of project SI2.825082, funded by the European Commission—DG GROW. The project's objective was to finalise a European approach for assessing the fire performance of façades under medium and large fire exposure conditions.
Péter Tóth, Anja Hofmann‐Böllinghaus, Fabien Dumont, Johan Anderson, Johan Sjöström, Mikael Bergius, Roman Chiva, Octavian Lalu   +7 more
wiley   +1 more source

Study on modeling and numerical analysis for the prediction of wheel wear development

Mechanical Engineering Journal, 2017
The rights-of-way of urban railway systems contain many sharp curves. Since sharp curves can contribute to wheel and rail wear, the ability to predict the development of wheel wear is crucial to maintaining safe operation of such systems.
Ariku YOSHIOKA, Yoshiaki TERUMICHI, Masahiro TSUJIE, Jun MATSUI   +3 more
doaj   +1 more source

Design and Development of Novel Airway Device for Transoral Respiratory Monitoring During Sedation

The Laryngoscope, EarlyView.
This article describes iterative design factors and results of clinical testing for a novel medical device that promotes transoral respiratory gas exchange for patients during sedation. A minimally viable prototype was 3D printed from thermoplastic polyurethane and demonstrated high levels of oral retention, gas exchange, and satisfaction among ...
Samuel L. Oyer, Noah Thornton, Michael Epps, Kareem Hassan, William Sande, Shreya Mandava, Matthew Thames, Claudia Gutierrez   +7 more
wiley   +1 more source