scholarly journals Análisis estructural de un bus de dos pisos de larga distancia durante colisiones

Ingenius ◽  
2021 ◽  
Author(s):  
Jimmy Brito Morocho ◽  
Marco Amaya Pinos ◽  
Luis López López ◽  
Fabricio Espinoza Molina
Keyword(s):  
Un Ece

Este estudio presenta un análisis de colisiones de impacto frontal y volcamiento lateral de un autobús de dos pisos, conforme al Reglamento 66 y 29 de la Comisión Económica de las Naciones Unidas para Europa (UN/ECE), y el Servicio Ecuatoriano de Normalización (INEN) con su normativa 1323:2009, encargado de regular los autobuses para el transporte de pasajeros en el Ecuador. En la actualidad la mejora constante de la seguridad activa y pasiva de los autobuses con respecto a los accidentes es un tema de gran impacto social. En este contexto se analiza la colisión de un autobús de dos pisos aplicando el método de elementos finitos (MEF), el cual es sometido a diferentes escenarios de colisión como es de un impacto frontal y un volcamiento lateral, con la finalidad de estudiar los efectos de un accidente de este tipo de estructuras donde la normativa no es específica para esta clase de vehículos. Los resultados obtenidos permiten tener en cuenta consideraciones importantes al momento del diseño de estos elementos.

Analysis of mechanics of side impact test defined in UN/ECE Regulation 129

2017 ◽  
Vol 19 (3) ◽  
pp. 256-263 ◽  
Author(s):  
Pawel Baranowski ◽  
Krzysztof Damaziak ◽  
Lukasz Mazurkiewicz ◽  
Jerzy Malachowski ◽  
Artur Muszynski ◽  
...  
Keyword(s):  
Impact Test ◽  
Side Impact ◽  
Un Ece

scholarly journals Comparative Analysis of Child Restraint Systems Safety Parameters in Relation to the New Regulation No. 129 of the Economic Commission for Europe of the United Nations (UN/ECE)

Vehicles ◽  
2020 ◽  
Vol 2 (1) ◽  
pp. 142-155
Author(s):  
Artur Muszyński ◽  
Jakub Łuszczek ◽  
Rafał Szymaniuk
Keyword(s):  
Experimental Tests ◽  
Performance Criterion ◽  
Abdominal Pressure ◽  
Car Accidents ◽  
Economic Commission ◽  
Safety Parameters ◽  
Booster Seats ◽  
Child Restraint ◽  
Almost All ◽  
Un Ece

This study presents a comparison of the common Child Restraint Systems (CRS) which reduces the value of dynamic loads affecting the child’s body during car accidents. The analyzed systems were: child seats, booster seats, and straps—adjustable vehicle seat belts adapted to children’s stature. The effectiveness of the analyzed devices was assessed on the basis of experimental tests carried out in the accredited laboratory approving the Child Restraint Systems. The tests were carried out in accordance with the new Regulation No. 129 UN/ECE. The authors examined whether the tested devices meet the guidelines of the new Regulations No. 129 despite approval in accordance with Regulation No. 44. Based on the research results, better safety parameters of some new solutions dedicated to children’s safety could be observed. Almost all the selected CRS met requirements stated in Regulation No. 129. The only exception was for abdominal pressure in one of the tested devices. Head Resultant Acceleration in tested devices was 14.7–39.0% less than the limit determined in Regulation No. 129 whereas Chest Resultant Acceleration was 17.4–37.6% less. Abdominal pressure was 46.4–81.4% beneath the limit (apart from one case which did not meet the requirements). The HPC parameter (Head Performance Criterion) was 45.4–74.5% less. The final results show that there are still some possibilities for improving the safety of young vehicle passengers.

scholarly journals Stand for testing the strength of the bus structure in accordance with the requirements of UN ECE Regulation No. 66

2018 ◽  
Vol 19 (12) ◽  
pp. 289-292
Author(s):  
Zbigniew Barszcz ◽  
Krzysztof Podkowski
Keyword(s):  
Super Structure ◽  
Passenger Vehicles ◽  
Bus Structure ◽  
Un Ece

The article discusses the stand for testing the strength of the super-structure of passenger vehicles – mainly buses, in accordance with the requirements of UN ECE Regulation No. 66

scholarly journals El Expediente clínico electrónico

2021 ◽  
Vol 8 (1) ◽  
pp. 24-34
Author(s):  
Leslie Yedidya Valencia Ramón ◽  
Arturo Corona Ferreira.
Keyword(s):  
Toma De Decisiones ◽  
Siglo Xix ◽  
Un Ece

La información clínica es casi tan antigua como la vida misma, incluso se pueden considerar como prehistorias clínicas, en Mesopotamia llevar el registro de los pacientes se plasmaba en papiro, pero es hasta el siglo XIX que ya se habla de formatos electrónicos. Las Tecnologías de la Información y la Comunicación son herramientas claves para alcanzar avances en el sector salud por medio de Expedientes Clínicos Electrónicos (ECE) que permiten además de registrar, archivar, controlar, integrar entre otras cosas los datos de los pacientes mejorar el rendimiento del personal de salud reduciendo su carga de trabajo administrativa y concentrándose en la atención de calidad al paciente por medio de diagnósticos más asertivos y un continuo control sobre su historial médico, por otra parte, debe facilitar el trabajo entre todas las áreas de un hospital, cuyo fin es obtener ayuda en la toma de decisiones y elevar la calidad de la atención brindada al paciente, todo esto con la ayuda de estándares, normas, protocolos, reglas y reglamentos vigentes. La interoperabilidad, es decir, el intercambio de información sobre los procesos o datos clínicos del paciente en las unidades de salud contribuyen que el servicio de salud pueda brindarse al paciente en cualquier institución médica, ya que su ECE estaría homologado, contando con una integración de estándares, factores y lenguaje en común. El contar con un ECE completo para enfoques de investigación permite ser analizados en la prevención errores médicos, negligencias e intervención sanitarias oportunas en la prevención y control de brote de enfermedades.

scholarly journals Predicting recovery of acidified freshwaters in Europe and Canada: an introduction

2003 ◽  
Vol 7 (4) ◽  
pp. 431-435 ◽  
Author(s):  
R. C. Ferrier ◽  
R. F. Wright ◽  
A. Jenkins ◽  
H. Barth
Keyword(s):  
Reference Conditions ◽  
Dynamic Modelling ◽  
Predictive Modelling ◽  
Freshwater Ecosystems ◽  
Environmental Benefits ◽  
Anthropogenic Pressures ◽  
Recovery From Acidification ◽  
The Eu ◽  
Un Ece

Abstract. Abstract: The RECOVER: 2010 project was designed to assess the current and future anthropogenic pressures on sensitive European freshwater ecosystems. This pan–European assessment utilised a standardised predictive modelling approach to evaluate the degree of compliance with respect to the restoration of acidified waters by 2016, as specified under the EU Water Framework Directive (WFD), and evaluated the environmental benefits of proposed UN-ECE protocols on emissions control. Between 1970 and 2000, observations and model simulations show a significant decline in acidic surface water in all regions of Europe. This demonstrated the success of policies aimed at reducing emission of acidifying compounds. The nature and extent of future regional recovery from acidification is, however, dependent upon the historical pattern of deposition, regional ecosystem characteristics and the role of confounding factors, which may delay the onset of recovery or the magnitude of response. Model predictions to 2010 and beyond emphasise the continued benefit of currently proposed reductions, as reflected by the degree of recovery of freshwater ecosystems. A key component was to link such hydrochemical recovery with ecological response, and the project aimed to evaluate this against current WFD criteria of “good status" and “reference conditions". The RECOVER: 2010 project research has also played a major role in defining the dynamic modelling outputs which will be required to support the review of the Gothenburg Protocol within the work of the UN-ECE CLRTAP Working Group on Effects (WGE), and model outputs have been made available to a range of national agencies throughout Europe. Keyword: recovery, acidification, modelling, policy, good status, reference conditions

Modelling and Simulation of a Single Deck Bus Subjected to Rollover Crash Loading

2013 ◽  
Vol 393 ◽  
pp. 453-459
Author(s):  
Wan Noaimadudin Wan Mohamad Kamal ◽  
Nor Hayati Saad ◽  
Amir Radzi Ab. Ghani ◽  
Nik Rosli Abdullah ◽  
Khairul Izwandy Abd Jazam
Keyword(s):  
Current Status ◽  
Long Distance ◽  
Bus Structure ◽  
Residual Space ◽  
Ece R66 ◽  
Distance Travel ◽  
Long Distance Travel ◽  
Rollover Crash ◽  
Bus Accident ◽  
Un Ece

Buses are the most popular and common passenger vehicle for long distance travel in Malaysia. Increased bus usage as a public transport prompts researchers to study safety aspects of the vehicles subjected to various crash incidents. The most damaging bus accident is rollover crash. The bus structures must have sufficient crashworthiness and strength in order to reduce and prevent injuries and fatalities during the rollover accident. Initially, this paper overviews the current status of rollover accidents and requirement of UN-ECE Regulation 66 which is aimed to improve the bus structure in withstanding the rollover crash. The current bus framework structure comprises galvanized square hollow sections (SHS) which are welded and bolted together. Abaqus was used to simulate responses of bus structure subjected to loadings as specified in UN-ECE Regulation 66. The results showed that the gap allowances of the residual space are complied with the UN-ECE R66 requirements. Further work to optimize the bus structure in terms of weight, structural strength and crashworthiness is proposed.

Die atmosphärische Korrosion von Kupfer und Bronze im Rahmen des UN/ECE-Expositionsprogramms. Zwischenbericht nach 4-jähriger Bewitterung

1993 ◽  
Vol 44 (2) ◽  
pp. 48-56 ◽  
Author(s):  
Bruno Stöckle ◽  
Stöckle Fitz ◽  
Martin Mach ◽  
Georg Pöhlmann ◽  
Rolf Snethlage
Keyword(s):  
Un Ece
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