4,408 research outputs found
Proceedings of the 4th field robot event 2006, Stuttgart/Hohenheim, Germany, 23-24th June 2006
Zeer uitgebreid verslag van het 4e Fieldrobotevent, dat gehouden werd op 23 en 24 juni 2006 in Stuttgart/Hohenhei
DESIGN AND IMPLEMENTATION OF A MOBILE ROBOT
Mobile robot nowadays has been used in various sectors of business ranged from
sciences and industries to servicing and entertainment, and has posed very unique
challenges to the researcher. Due to its autonomous nature, it requires an extensive
sensing system to read the surrounding working environment, sufficient controller
for data processing and decision-making, and also a very stable actuator system to
actuate the robot response with respect to the working environment changes.
This report details the final year project of designing and implementing an
autonomous wheel-based mobile robot, which has a capability to navigate according
to a predetermined path while avoiding any obstacle on its route. It is also equipped
with small manipulator to enable simple pick and place action: picking a small
object from a predefined location and placing it at another predetermined location on
the floor. Hence, in order for it to do all those task, the robot fundamentally consists
of four main building functional blocks: (1) Navigation (2) Position tracking (3)
Obstacle detection and avoidance (4) Manipulator & gripper control block (Since the
robot movement is based on a predetermined plan, the path planner block is skipped
in this project).
For further improvement, some fine-tuning on the manipulator structure and
programming, as well as the development of a user interface to enable to user to
select the robot movement path are highly recommended. In summary, the project
has been successfully completed, providing a basement for future mobile robot
development in UTP
Accenting agency: duets within interactive video installation
This PhD by Publication constitutes a research enquiry into creative agency within interactive video installations through reflection on six published works: Remote Dancing (2004-9), Doing (2008), Orbital (2010), Gravity Shift (2010), ByPasser (2010) and Weighting (2015). These installations have been documented and are presented on online.
Key to the discussion, is the notion of agency arising through the intersections within intermedial environments (Scott & Barton, 2019). By viewing interactive video installations from this perspective, I examine how activity within works can be viewed as co-agential taking the form of a duet between participant and filmic content. Through the choreographic concept of a ‘relational net’ (Rubidge & Schiller, 2014) I recognise and place importance on spatial provision for the whole-body movement across both physical and filmic space to encourage greater agency within installations.
To progress the analysis, I identify specific forms of encounter and engagement a participant experiences as they interact with installations, drawing on observations around dwelling (Giddens, 2019) and intimacy (Hill & Paris, 2014) as significant contributors to agential involvement. As practical ways to support the development of future work in the field, I articulate modulation and destabilisation as techniques to highlight and stimulate active participant involvement. These techniques blend in embodied film theory (Sobchack, 1982), highlighting how the intentionality of the camera emphasises each participant’s awareness of their physical engagement and subsequent agential action within interactive video installation
Refurbishment cost study of the thermal protection system of a space shuttle vehicle. Phase 2: Supplement
The labor costs and techniques associated with the maintenance of a bonded-on ablator thermal protection system (TPS) concept, suitable for Space Shuttle application are examined. The baseline approach to TPS attachment involves bonding reusable surface insulation (RSI) and/or ablators to the structural skin of the vehicle. The RSI and/or ablators in the form of either flat or contoured panels can be bonded to the skin of the primary structure directly or by way of an intermediate silicone foam rubber pad. The use of foam rubber pads permits the use of buckling skins and protruding heat rivets on the primary structure, minimizing structural weight and fabrication costs. In the case of the RSI, the foam rubber pad serves as a required strain isolator. For purpose of comparison, test data were obtained for an installation with and without the use of a strain isolator. The refurbishment aspects of a bonded-on RSI concept (without a strain isolator) were examined experimentally along with several externally removable panel concepts employing both ablator and RSI TPS. The various concepts are compared
SciTech News Volume 71, No. 2 (2017)
Columns and Reports From the Editor 3
Division News Science-Technology Division 5 Chemistry Division 8 Engineering Division 9 Aerospace Section of the Engineering Division 12 Architecture, Building Engineering, Construction and Design Section of the Engineering Division 14
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Manufacturing processes for fabricating graphite/PMR 15 polyimide structural elements
Investigations were conducted to obtain commercially available graphite/PMR-15 polyimide prepreg, develop an autoclave manufacturing process, and demonstrate the process by manufacturing structural elements. Controls were established on polymer, prepreg, composite fabrication, and quality assurance, Successful material quality control and processes were demonstrated by fabricating major structural elements including flat laminates, hat sections, I beam sections, honeycomb sandwich structures, and molded graphite reinforced fittings. Successful fabrication of structural elements and simulated section of the space shuttle aft body flap shows that the graphite/PMR-15 polyimide system and the developed processes are ready for further evaluation in flight test hardware
Integrating passive ubiquitous surfaces into human-computer interaction
Mobile technologies enable people to interact with computers ubiquitously. This dissertation investigates how ordinary, ubiquitous surfaces can be integrated into human-computer interaction to extend the interaction space beyond the edge of the display. It turns out that acoustic and tactile features generated during an interaction can be combined to identify input events, the user, and the surface. In addition, it is shown that a heterogeneous distribution of different surfaces is particularly suitable for realizing versatile interaction modalities. However, privacy concerns must be considered when selecting sensors, and context can be crucial in determining whether and what interaction to perform.Mobile Technologien ermöglichen den Menschen eine allgegenwärtige Interaktion mit Computern. Diese Dissertation untersucht, wie gewöhnliche, allgegenwärtige Oberflächen in die Mensch-Computer-Interaktion integriert werden können, um den Interaktionsraum über den Rand des Displays hinaus zu erweitern. Es stellt sich heraus, dass akustische und taktile Merkmale, die während einer Interaktion erzeugt werden, kombiniert werden können, um Eingabeereignisse, den Benutzer und die Oberfläche zu identifizieren. Darüber hinaus wird gezeigt, dass eine heterogene Verteilung verschiedener Oberflächen besonders geeignet ist, um vielfältige Interaktionsmodalitäten zu realisieren. Bei der Auswahl der Sensoren müssen jedoch Datenschutzaspekte berücksichtigt werden, und der Kontext kann entscheidend dafür sein, ob und welche Interaktion durchgeführt werden soll
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