Search results for "chat"
showing 10 items of 259 documents
Landing gear suspension control through adaptive backstepping techniques with H∞ performance
2011
Author's version of a chapter published in the book: Proceedings of the 18th IFAC World Congress 2011. Also available from the publisher at: http://dx.doi.org/10.3182/20110828-6-IT-1002.00589 Landing gear suspension systems fulfill the tasks of absorbing the vertical energy of the touch-down as well as providing passenger and crew comfort with a smooth ground ride before take-off and after landing. They are also designed to have optimal performance in the case of a hard landing. In general, the tasks of aircraft landing gears are complex and sometimes lead to a number of contradictory requirements. Although there are existing modifications of aircraft shock absorbers to reduce the problem, …
Development of a vision-based measurement system for relative motion compensation
2014
Masteroppgave i mekatronikk MAS 500 Universitetet i Agder 2014 Motion compensation is used in many applications where no relative motion between two objects is desired. In the offshore industry, motion compensation systems are used to increase the operational window during load transfers like crane operations or positioning of gangways for personell transfer. In most systems one or more motion reference units (MRU) are used to measure motion with respect to a world reference frame and compensate for this motion. For motion compensation between two independently moving objects, a MRU-based solution becomes complex when measurements must be exchanged and combined. Vision systems have existed …
Mixed l-/l1 fault detection observer design for positive switched systems with time-varying delay via delta operator approach
2014
Published version of an article in the journal: International Journal of Control, Automation and Systems. Also available from the publisher at: http://dx.doi.org/10.1007/s12555-013-0466-1 This paper investigates the problem of fault detection observer design for positive switched systems with time-varying delay via delta operator approach. A new fault sensitivity measure, called l-index, is proposed. The l- fault detection observer design and multi-objective l -/l1 fault detection observer design problems are addressed. Based on the average dwell time approach and the piecewise copositive type Lyapunov-Krasovskii functional method in delta domain, sufficient conditions for the existence of …
Teaching Motion Control in Mechatronics Education Using an Open Framework Based on the Elevator Model
2022
Universities and other educational institutions may find it difficult to afford the cost of obtaining cutting-edge teaching resources. This study introduces the adoption of a novel open prototyping framework in the context of mechatronics education, employing low-cost commercial off-the-shelf (COTS) components and tools for the motion control module. The goal of this study is to propose a novel structure for the motion control module in the engineering mechatronics curriculum. The objective is to foster a new teaching method. From a methodology perspective, students are involved in a series of well-organised theoretical lectures as well as practical, very engaging group projects in the lab.…
Investigating the User Experience of Virtual Reality Rehabilitation Solution for Biomechatronics Laboratory and Home Environment
2021
Virtual reality (VR) technology is a promising tool in physical rehabilitation. Research indicates that VR-supported rehabilitation is beneficial for task-specific training, multi-sensory feedback, diversified rehabilitation tasks, and patient motivation. Our first goal was to create a biomechatronics laboratory with a VR setup for increasing immersion and a motion platform to provide realistic feedback to patients. The second goal was to investigate possibilities to replicate features of the biomechatronics laboratory in a home-based training system using commercially available components. The laboratory comprises of a motion platform with 6-degrees-of-freedom (Rexroth eMotion), fitted wit…
Vers une clarification théorique de la notion de valeur perçue en marketing
2012
International audience; La valeur perçue par les consommateurs occupe une place significative dans les réflexions actuelles des praticiens et des chercheurs en marketing. Cependant, la diversité des recherches et l'absence d'un cadre théorique unifié nécessitent un travail de clarification. Cet article propose ainsi d'identifier, à partir des définitions et approches de la valeur, des critères de classification et de caractérisation de cette notion. Puis, la comparaison avec d'autres concepts proches amène à resituer la valeur perçue au sein d'un réseau de relations. Enfin, les implications managériales, liées à l'analyse de la valeur perçue, sont soulignées.
Cutting Vibrations
2008
Chapter 8 provides comprehensive engineering knowledge regarding cutting vibrations, their typical sources in machining operations, and methods of their elimination to prevent negative influence on the surface finish (chatter marks). The classification of cutting vibrations including free, forced, and self-excited vibrations is discussed, and all possible sources and mechanisms of all types of cutting vibrations are specified and characterized. The regeneration of surface waviness, which is the predominant mechanism of chatter, is outlined for turning and milling operations. The stability of machining operations based on the stability lobe diagrams is highlighted and their practical applica…
Angst und Verzagtheit im . Eine Studie zum Wortschatz der Angst
2015
The Meier Helmbrecht, written by Wernher der Gärtner between 1250 and 1280, has often been object of study especially with regard to the protagonist’s extreme ambition and the disowning of his own origins and of his family heritage, but it also offers excellent opportunities for linguistic reflexions. Contrary to what is expected in a text, where the main character lives an immoral life and where his family is constantly concerned about his fate, there are few words to express fear or anxiety, but Wernher der Gärtner chooses the words used carefully, highlighting the different ways the characters perceive and reveal these emotions. The study of the vocabulary of fear in this work allows us …
Exploiting multimodality for intelligent mobile access to pervasive services in cultural heritage sites
2010
In this chapter the role of multimodality in intelligent, mobile guides for cultural heritage environments is discussed. Multimodal access to information contents enables the creation of systems with a higher degree of accessibility and usability. A multimodal interaction may involve several human interaction modes, such as sight, touch and voice to navigate contents, or gestures to activate controls. We first start our discussion by presenting a timeline of cultural heritage system evolution, spanning from 2001 to 2008, which highlights design issues such as intelligence and context-awareness in providing information. Then, multimodal access to contents is discussed, along with problems an…
Affordances in Human-Chatbot Interaction: A Review of the Literature
2021
The present study advances our understanding of human-AI interactions, by identifying and analyzing chatbot affordances in prior research. The results of this review consolidate research findings on chatbots’ affordances, which must be taken into consideration when chatbot-based services are designed and deployed. Specifically, the review of state-of-the-art literature led to the identification of nine high level affordances: Human Like Conversing, Assistance Provision, Facilitation, Distilling Information, Enriching Information, Context Identification, Personalization, Fostering Familiarity and Ensuring Privacy. Our contribution is twofold. First, we map the chatbot affordances identified …