scholarly journals Collaborative Robotics: Enhance Maintenance Procedures on Primary Flight Control Servo-Actuators

2021 ◽  
Vol 11 (11) ◽  
pp. 4929
Author(s):  
Andrea Raviola ◽  
Michele Antonacci ◽  
Francesco Marino ◽  
Giovanni Jacazio ◽  
Massimo Sorli ◽  
...  
Keyword(s):  
Flight Control ◽  
Vision System ◽  
Operating Conditions ◽  
Working Environment ◽  
Joint Research ◽  
Collaborative Robotics ◽  
Automatic Sequence ◽  
Joint Research Project ◽  
First Results ◽  
Health Features

Electro-Hydraulic Servo-Actuators (EHSAs) are mainly used to command primary flight control surfaces in military and commercial aircraft. Since these devices are crucial for vehicle stability and maneuverability, a correct assessment of their health status is mandatory. Within this framework, a joint research project (HyDiag), held by Politecnico di Torino and Lufthansa Technik AG (LHT), aims to provide a more efficient and reliable procedure to determine the operating conditions of the EHSA. A smart and automatic sequence, able to extract several health features of the Unit Under Test (UUT), has been developed and integrated. The present paper discusses the implementation of a collaborative robot, equipped with a vision system and customized tools, for both health features extraction, and maintenance tasks on unserviceable servo-actuators. The main challenges related to the automation of such complex tasks in a real working environment are highlighted, togetherwith the advantages brought by the proposed approach. The paper also presents the first results of an ongoing experimental campaign. Specifically, it reports the enhancements of the maintenance procedures using collaborative robotics and possible future developments.

Collision Avoidance Algorithm for Collaborative Robotics

2017 ◽  
Vol 11 (3) ◽  
pp. 481-489 ◽  
Author(s):  
Stefano Mauro ◽  
◽  
Stefano Pastorelli ◽  
Leonardo Sabatino Scimmi
Keyword(s):  
Real Time ◽  
Collision Avoidance ◽  
Vision System ◽  
Operating Conditions ◽  
End Effector ◽  
Collaborative Robotics ◽  
Avoidance Tests ◽  
Robot Configuration

The paper discusses a study on a real-time collision avoidance algorithm for collaborative robotics applications. Within the work it is considered that a vision system detects the position of an obstacle and defines an ellipsoid which completely includes it. A similar virtual ellipsoid is considered to include the end effector, and its pose is computed based on the robot configuration. The distance between ellipsoids is input into the collision avoidance algorithm based on the method of artificial potentials. The tuning of the algorithm is described herein, along with an analysis of its performance under different operating conditions. The results of two collision avoidance tests are also presented. For the first test, the end-effector must avoid a fixed obstacle placed along a planned path. For the second test, the obstacle is moving, following a trajectory that intersects that of the end-effector. Finally, the behavior of the algorithm with increasing velocities of the end-effector and obstacle is analyzed.

scholarly journals INTEGRATED FLOOD RISK ANALYSIS FOR EXTREME STORM SURGES (XTREMRISK)

2011 ◽  
Vol 1 (32) ◽  
pp. 9 ◽  
Author(s):  
Andreas Burzel ◽  
Dilani R. Dassanayake ◽  
Marie Naulin ◽  
Andreas Kortenhaus ◽  
Hocine Oumeraci ◽  
...  
Keyword(s):  
Risk Analysis ◽  
Flood Risk ◽  
Risk Mitigation ◽  
Storm Surges ◽  
Mitigation Measures ◽  
Joint Research ◽  
Extreme Storm ◽  
Joint Research Project ◽  
Flood Risk Analysis ◽  
First Results

Extreme storm surges have frequently led to major damages also along the German coastline. The joint research project 'XtremRisK' was initiated to improve the understanding of risk-related issues due to extreme storm surges and to quantify the flood risk for two pilot sites at the open coast and in an estuarine area under present and future climate scenarios. In this context, an integrated flood risk analysis is performed based on the source-pathway-receptor concept under consideration of possible tangible and intangible losses. This paper describes the structure of the project, the methodology of the subprojects, and first results. Moreover, integration approaches are discussed. The results of 'XtremRisK' will be used to propose flood risk mitigation measures for the prospective end-users.

scholarly journals AFX Zeolite for Use as a Support of NH3-SCR Catalyst Mining through AICE Joint Research Project of Industries–Academia–Academia

Catalysts ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 163
Author(s):  
Masaru Ogura ◽  
Yumiko Shimada ◽  
Takeshi Ohnishi ◽  
Naoto Nakazawa ◽  
Yoshihiro Kubota ◽  
...  
Keyword(s):  
High Performance ◽  
Ionic Species ◽  
Research Project ◽  
Joint Research ◽  
Structure Directing Agent ◽  
Scr Catalyst ◽  
Organic Structure ◽  
Nh3 Scr ◽  
Joint Research Project ◽  
The One

This paper introduces a joint industries–academia–academia research project started by researchers in several automobile companies and universities working on a single theme. Our first target was to find a zeolite for NH3-SCR, that is, zeolite mining. Zeolite AFX, having the same topology of SSZ-16, was found to be the one of the zeolites. SSZ-16 can be synthesized by using an organic structure-directing agent such as 1,1′-tetramethylenebis(1-azonia-4-azabicyclo[2.2.2]octane; Dab-4, resulting in the formation of Al-rich SSZ-16 with Si/Al below five. We found that AFX crystallized by use of N,N,N′,N′-tetraethylbicyclo[2.2.2]oct-7-ene-2,3:5,6-dipyrrolidinium ion, called TEBOP in this study, had the same analog as SSZ-16 having Si/Al around six and a smaller particle size than SSZ-16. The AFX demonstrated a high performance for NH3-SCR as the zeolitic support to load a large number of divalent Cu ionic species with high hydrothermal stability.

scholarly journals What sparks academic engagement with society? A comparison of incentives appealing to motives

2021 ◽  
pp. 095042222199406
Author(s):  
Eva Sormani ◽  
Thomas Baaken ◽  
Peter van der Sijde
Keyword(s):  
Higher Education ◽  
Academic Engagement ◽  
Career Advancement ◽  
Self Determination Theory ◽  
Self Determination ◽  
Third Mission ◽  
Research Support ◽  
Joint Research ◽  
Subject Design ◽  
Joint Research Project

The pressure on higher education institutions (HEIs) to realize third mission activities continues to grow, intensifying the search for incentives to motivate academics to engage with stakeholders outside their HEI. Previous studies have found limitations in intrinsically motivating academic engagement; therefore, this study investigates the extrinsic regulation of motivations via incentives. The authors identified a broad range of incentives for third mission activities, belonging to four motivation categories: pecuniary incentives, career advancement, appreciation and research support. Drawing on self-determination theory, incentives (nudges and rewards) are empirically compared in a between-subject design with a sample of 324 academics from the business and economics disciplines. The analysis showed that nudges affect business and economics academics’ intention to engage with society in a joint research project. Furthermore, these academics responded well to incentives concerned with the research support motivation category. The findings contribute to the literature by highlighting the relevance of marginal incentives—nudges—in implementing appropriate incentives in HEIs.

Corporate Finance in Germany and France. A Joint Research Project of the Deutsche Bundesbank and the Banque de France

1999 ◽  
Author(s):  
Hans Friderichs ◽  
Dieter Gerdesmeier ◽  
Elisabeth M. Kremp ◽  
Bernard Paranque ◽  
Annie Sauve ◽  
...  
Keyword(s):  
Corporate Finance ◽  
Research Project ◽  
Joint Research ◽  
Joint Research Project ◽  
Deutsche Bundesbank

SOLVING THE PROBLEM OF INTER-AIRCRAFT NAVIGATION TO ENSURE FLYING IN FORMATION USING A TECHNICAL VISION SYSTEM

2021 ◽  
pp. 32-39
Author(s):  
Д.А. Смирнов ◽  
В.Г. Бондарев ◽  
А.В. Николенко
Keyword(s):  
Image Processing ◽  
Flight Control ◽  
Vision System ◽  
Weather Conditions ◽  
Infrared Range ◽  
Light Sources ◽  
Navigation Systems ◽  
Aircraft Structure ◽  
Aircraft Navigation ◽  
Technical Vision

Проведен краткий анализ как отечественных, так и зарубежных систем межсамолетной навигации. В ходе анализа были отражены недостатки систем межсамолетной навигации и представлен актуальный подход повышения точности системы навигации за счет применения системы технического зрения. Для определения местоположения ведущего самолета предлагается рассмотреть в качестве измерительного комплекса систему технического зрения, которая способна решать большой круг задач на различных этапах, в частности, и полет строем. Систему технического зрения предлагается установить на ведомом самолете с целью измерения всех параметров, необходимых для формирования автоматического управления полетом летательного аппарата. Обработка изображений ведущего самолета выполняется с целью определения координат трех идентичных точек на фоточувствительных матрицах. Причем в качестве этих точек выбираются оптически контрастные элементы конструкции летательного аппарата, например окончания крыла, хвостового оперения и т.д. Для упрощения процедуры обработки изображений возможно использование полупроводниковых источников света в инфракрасном диапазоне (например, с длиной волны λ = 1,54 мкм), что позволяет работать даже в сложных метеоусловиях. Такой подход может быть использован при автоматизации полета строем более чем двух летательных аппаратов, при этом необходимо только оборудовать системой технического зрения все ведомые самолеты группы The article provides a brief analysis of both domestic and foreign inter-aircraft navigation systems. In the course of the analysis, we found the shortcomings of inter-aircraft navigation systems and presented an up-to-date approach to improving the accuracy of the navigation system through the use of a technical vision system. To determine the location of the leading aircraft, we proposed to consider a technical vision system as a measuring complex, which is able to solve a large range of tasks at various stages, in particular, flight in formation. We proposed to install the technical vision system on the slave aircraft in order to measure all the parameters necessary for the formation of automatic flight control of the aircraft. We performed an image processing of the leading aircraft to determine the coordinates of three identical points on photosensitive matrices. Moreover, we selected optically contrasting elements of the aircraft structure as these points, for example, the end of the wing, tail, etc. To simplify the image processing procedure, it is possible to use semiconductor light sources in the infrared range (for example, with a wavelength of λ = 1.54 microns), which allows us to work even in difficult weather conditions. This approach can be used when automating a flight in formation of more than two aircraft, while it is only necessary to equip all the guided aircraft of the group with a technical vision system

Backbone for Escape, Evacuation and Rescue From Arctic Facilities: A Systematic Approach

2014 ◽  
Author(s):  
Mark Longrée ◽  
Sven Hoog
Keyword(s):  
Energy Demand ◽  
Oil And Gas ◽  
Tourism Industry ◽  
The Arctic ◽  
Joint Research ◽  
Operating Personnel ◽  
Gas Industry ◽  
Joint Research Project ◽  
Arctic Ice ◽  
The Impact

In turn of the global warming and driven by the constant need for resources an increasing number of commercial and scientific activities conquer the Arctic in order to benefit from almost untouched resources like oil and gas but also from the overwhelming nature. These activities are accompanied by a steadily increasing number of vessels transporting goods but also operating personnel, scientists or tourists. Especially the number of tourists visiting the Arctic can reach far more than 1000 per vessel, resulting in growing headaches for the responsible safety and security authorities in the Arctic surrounding countries. Up to now no suitable Escape, Evacuation and Rescue (EER) concept is in place to cope with these challenges when it comes to hazardous situations. In this context IMPaC ([1]) developed a new and appropriate EER concept for the Arctic, exceeding the currently dominant small and isolated settlements along the coastlines in Denmark (Greenland), Norway, Russia, Canada and the US. One question seems to be central: Is there any requirement and benefit beyond the currently used small rescue station? Yes, we strongly believe that there is a growing demand for suitable infrastructure coming from various industries. Beyond rescue objectives there is a demand for people working and living in this area all year long, for a few days, weeks or months using these settlements for their specific needs. This led us to the idea of the provision of a common-use infrastructure for multiple industries. The commonly used infrastructure maximizes the use of the remote and very expensive infrastructure and minimizes the impact on the environment in this part of the world. Potential users of this infrastructure would be: • Oil & Gas Industry, driven by the increased world energy demand • Marine Transport & Tourism Industry, driven by declined arctic ice and new sea routes via the Arctic sea • Fishery Industry • Scientific community Any EER concept for the Arctic has to cope with several specific environmental and spatial challenges as addressed by the EU joint research project ACCESS ([2]), where IMPaC participates. The paper introduces the new EER concept and focuses especially on its beneficial, efficient and safe operability in the Arctic recording an increasing number of commercial and scientific activities.

Migration to the Gulf States and China: Local Perspectives from Cameroon

2009 ◽  
Vol 2 (2) ◽  
pp. 229-244 ◽  
Author(s):  
Peter Tatah ◽  
Michaela Pelican
Keyword(s):  
International Migration ◽  
Far East ◽  
African Countries ◽  
Joint Research ◽  
Migration Internationale ◽  
Joint Research Project ◽  
The Family ◽  
Gulf States ◽  
Majeure Partie ◽  
Local Perspectives

Abstract This contribution discusses local perspectives on international migration with a focus on South-South and South-East migration, namely from Cameroon to the Gulf States and to China. The report is based on a joint research project involving anthropologists and students of the Universities of Zurich, Yaoundé and Douala. As in many African countries, international migration has become a major concern for large parts of the population of Cameroon. While western countries still feature as preferred destinations, many Cameroonians have turned to other, more easily accessible options within the South. Popular destinations are countries within Africa as well as the Near and Far East. In all these migration enterprises the family plays a crucial role, both in the preparation of the journey and with regard to transnational exchange relations. For Muslim migrants, religion may be a significant factor influencing their choice of destination besides other considerations, such as economic and educational incentives. Cette contribution examine les perspectives locales sur la migration internationale avec un accent sur la migration Sud-Sud et sur la migration Sud-Est, à savoir du Cameroun aux Etats du Golfe et à la Chine. Le rapport est basé sur un projet de recherche impliquant des anthropologues et des étudiants des universités de Zurich, Yaoundé et Douala. Comme dans beaucoup de pays africains, la migration internationale est devenue un souci majeur pour la majeure partie de la population camerounaise. Tandis que les pays occidentaux figurent toujours comme les destinations préférées, beaucoup de Camerounais se tournent vers des pays plus accessibles dans le Sud. Les destinations populaires sont les pays africains et l'Extrême et Proche Orient. Dans toutes ces stratégies de migration la famille joue un rôle crucial, tant dans la préparation du voyage qu'en ce qui concerne les relations d'échange transnationales. Pour les migrants musulmans, la religion peut être un facteur significatif influençant le choix de la destination en plus d'autres considérations, comme des motivations économiques et éducatives.

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