16 research outputs found
Kinematic analysis of a novel 2-d.o.f. orientation device
This paper presents the development of a new parallel robot designed for helping with bone milling surgeries. The robot is a small modular wrist with 2 active degrees of freedom, and it is proposed to be used as an orientation device located at the end of a robotic arm designed for bone milling processes. A generic kinematic geometry is proposed for this device. This first article shows the developments on the workspace optimization and the analysis of the force field required to complete a reconstruction of the inferior jawbone. The singularities of the mechanism are analyzed, and the actuator selection is justified with the torque requirements and the study of the force space. The results obtained by the simulations allow building a first prototype using linear motors. Bone milling experiment video is shown as additional material
Analyse et conception d'un palonnier à six degrés de liberté
Lâapprentissage manuel dâun mouvement Ă un robot est dĂ©jĂ chose faite de nos jours. Cependant, les Ă©quipements utilisĂ©s afin de dĂ©tecter le mouvement souhaitĂ© sont actuellement des capteurs de force. Ceux-ci sont rĂ©putĂ©s pour ĂȘtre compacts et robustes, mais demandent dâappliquer une certaine force sur le robot avant quâil se dĂ©place ce qui donne lâimpression quâil y a un dĂ©lai de rĂ©ponse. Lâobjectif principal du projet de recherche consiste Ă dĂ©velopper un capteur de dĂ©placement sous la forme dâun mini manipulateur parallĂšle passif pouvant ĂȘtre montĂ© au poignet dâun robot sĂ©riel afin de le contrĂŽler par dĂ©placement. Le capteur servira dâinterface dynamique pour la manipulation du robot par un humain. Le but est de rendre le contrĂŽle le plus intuitif possible pour lâutilisateur. Le concept est de forme circulaire et est conçu pour ĂȘtre montĂ© autour du poignet du robot de sorte que lâutilisateur a lâimpression de dĂ©placer directement le robot. Le rĂ©sultat de ce projet permettra de faciliter le contrĂŽle manuel dâun robot sĂ©riel et de le rendre plus intuitif. Ceci pourra ĂȘtre mis en application pour lâapprentissage de trajectoires Ă un robot ou encore pour faciliter le dĂ©placement, non rĂ©pĂ©titif, de charges lourdes.Teaching a prescribed trajectory to a robot manually is possible using current technology. However, to accomplish this, the robot needs to have load sensors. This type of sensor is robust and compact but creates a lag time caused by the time to apply the load on the sensor and the processing time. The main goal of this research project is to develop a displacement sensor. This sensor consists of a miniature passive parallel robot and is designed to be mounted on the wrist of a serial robot. The user will be able to move the parallel robot to control the serial one. The sensor will be used as a dynamic interface when manipulated by the user. Since the effector is circular and mounted around the wrist of the robot, the user will have the impression to directly control the robot. The goal of using this type of sensor is to give the user a more intuitive feeling and a minimum lag time. The prototype can be used to teach a prescribed trajectory to a robot or to move a heavy loads along non-repetitive paths
Sacred Scripture / Sacred Space: The Interlacing of Real Places and Conceptual Spaces in Medieval Art and Architecture
Thirteen papers on different subjects, focussing on writings and inscriptions in medieval art, explore the faculty of writing to create and determine spaces and to generate the sacred by the display of holy scripture. The subjects range from book illumination over wall painting, mosaics, sculpture, and church interiors to inscriptions on portals and façades
Sunlight, Atmosphere and Architecture
"This work discusses the complex dependencies between the relationship of sunlight and the architecture of the interior and the atmosphere of the interior.
The Introduction features an outline of the content of the work as the dependence between sunlight and architecture of the interior and the atmosphere of architecture. Examples of interiors in which an intended atmosphere was generated via a specific relationship between sunlight and architecture were listed. It was noted that the relationship between sunlight and architecture is an essential component/building block of the atmosphere of architecture, that is appreciated by architects and can be designed within an interior. The author also noted the reflection on the atmosphere of architecture present in architectural criticism and the theory of architecture.
Chapter I includes a detailed outline of the object of the study, its scope and perspective: sunlight in the interior in a relationship with architecture in the aspect of the atmosphere of architecture. No temporal or territorial scope was outlined for Chapters IâIV, while for the case studies presented in Chapters V and VIâthe analysis was limited to European and Japanese interiors from the period between 1965 and 2015 that the author could study via direct experience. Key terms were explained: light, sunlight, interior, the atmosphere of architecture, as well as the method of the study, its objective and its novel elements. The chapter also discusses the state of research, comprised of the literature quoted and used in the work."(...)This monograph was published as a part of the project âKA 2.0 â the development programme
of Andrzej Frycz Modrzewski Krakow Universityâ realized as a part of Operational Programme Knowledge Education Development 2014-2020, Axis III Higher Education for economy and development;
Measure 3.5. Comprehensive university programmes. The project is co-financed by the European Union within the European Social Fund
Sacred Scripture / Sacred Space
Thirteen papers on different subjects, focussing on writings and inscriptions in medieval art, explore the faculty of writing to create and determine spaces and to generate the sacred by the display of holy scripture. The subjects range from book illumination over wall painting, mosaics, sculpture, and church interiors to inscriptions on portals and façades
Empowering vulnerable women by participatory design workshops
This contribution addresses the issue of homeless womenâs empowerment through design workshops and according to the capability approach. The paper presents small, ordinary stories of women that experience being designers. Besides the professional label, being a designer means to approach reality from the transformative perspective of pursuing a positive change. It also translates in claiming the space for the expression of a personal vision of the world, within a cooperative environment. It enables to experiment innovative strategies to solve problems and to pursue self-determination in practical activities
Spaces of Appearance: Writings on Contemporary Theatre and Performance
This thesis, a collection of previously published materials, reflects a plural and
evolving engagement with theatre and performance over the past fifteen years
or so: as researcher, writer, editor, teacher, practitioner, spectator. These have
rarely been discreet categories for me, but rather different modalities of
exploration and enquiry, interrelated spaces encouraging dynamic
connectivities, flows and further questions.
Section 1 offers critical accounts of the practices of four contemporary theatre
directors: Jerzy Grotowski, Robert Wilson, Peter Brook and Ariane Mnouchkine.
Section 2 draws on elements of contemporary philosophy and critical thinking to
explore the mutable parameters of performance. lt proposes performative
mappings of certain unpredictable, energetic events 'in proximity of
performance', to borrow Matthew Goulish's phrase: contact, fire, animals,
alterity, place. Section 3 contains examples of documentation of performance
practices, including a thick description of a mise en scene of a major
international theatre production, reflections on process, training and
dramaturgy, a performance text with a framing dramaturgical statement, and
personal perspectives on particular collaborations. The external Appendix
comprises a recently published collection of edited and translated materials
concerning five core collaborative projects realised by Ariane Mnouchkine and
the Theatre du Soleil at their base in the Cartoucherie de Vincennes, Paris.
The core concerns of this thesis include attempts to think through:
âą the working regimes, poetics and pedagogies of certain directors,
usually in collaborative devising contexts within which the creative
agency of performers is privileged;
âą the processes and micro-politics of collaboration, devising, and
dramaturgical composition; the dramaturgical implications of trainings,
narrative structures, spaces, mise en scene, and of images as multi-layered,
dynamic 'fields';
âą the predicament and agency of spectators in diverse performance
contexts, and the ways in which spectatorial roles are posited or
constructed by dramaturgies;
âą the imbrication of embodiment, movement and perception in
performance, and the plurality of modes of perception;
âą the critical and political functions of theatre and theatre criticism as
cultural/social practice and 'art of memory' (de Certeau), of
dramaturgies as critical historiographies, and of theatre cultures (and
identities) as plural, dynamic, and contested;
âą performance as concentrated space for inter-subjectivity and the flaring
into appearance of the 'face-to-face' (Levinas); the possibility of ethical,
'response-able' encounter and exchange with another; identity as
relational and in-process, alterity as productive event, the inter-personal
as political;
âą the poetics and politics of what seems an unthinkable surplus (and
constitutive 'outside') to the cognitive reach of many conventional frames
and maps in theatre criticism and historiography; an exploration of acts of
writing as performative propositions and provocations ('critical fictions') to
think the event of meanings at/of the limits of knowledge and subjectivity.
This partial listing of recurrent and evolving concerns within the thesis traces a
trajectory in my evolution as a writer and thinker, a gradual displacement from
the relatively 'solid ground' of theatre studies and theatre history towards more
fluid and tentative articulations of the shifting 'lie of the land' in contemporary
performance and philosophy. This trajectory reflects a growing fascination with
present process, conditions, practices, perceptions 'in the middle', and ways of
writing (about) performance as interactive and ephemeral event
The Agency of Art Objects in Northern Europe, 1380â1520
This monograph book offers a new interpretation of northern European art of the fifteenth century. The author presents it as a conglomerate of objects-things which act on the recipient in a specific â material and spatial â way. He analyzes macro-scale objects that impose movement on the viewer, and micro-scale objects that encourage manipulation. Inspired by the anti-anthropocentric concept of âreturning to thingsâ (B. Latour, A. Gell and others), the author searches for the âagency of thingsâ in late-medieval art objects, which evoke specific liturgical, devotional, propaganda-political behaviors, or establish the status of social owner of the object that once co-created the network of material and spiritual culture. This methodologically innovative approach is part of the latest research in early art in Western Europe and the United States