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A Tactile Controlled Robot, ‘HI‐T‐HAND’ Expert 1 with a flexible wrist and delicate feeling that inserts pistons in cylinders with a clearance of about 20 microns faster and more deftly than human hands has been developed.

The insertion of a peg in a hole is the final phase in the assembly of a peg and a block with a hole. This paper briefly analyses the physical interaction between these two components during insertion, describes a simple fine‐motion device which utilizes this interaction to insert pegs into closely‐fitting holes, and discusses possible variations to the construction of the device.

The realisation of a practical generally versatile variable product assembly machine is still far from reality. However, in the same way that a generation 1 Industrial Robot can achieve high levels of versatility within certain restricted activities e. g. paint spraying ‐ spot welding etc., then by the correct choice of product and product design high levels of versatility can be achieved with assembly machines.

Precast construction has become increasingly popular in the construction industry. Nonetheless, the logistics of construction materials has been a neglected topic, and this neglect has resulted in delays and cost overruns. Careful planning that considers all of the factors affecting construction logistics can ensure project success. The purpose of this paper is to examine the potential for using genetic algorithms (GAs) to derive logistics plans for materials production, supply and consumption.

The proposed GA model is based on the logistics of precast components from the supplier’s production yard, to the intermediate warehouse and then to the construction site. Using an activity-based costing (ABC) approach, the model not only considers the project schedule, but also takes into account the production and delivery schedule and storage of materials.

The results show that GAs are suitable for solving time-cost trade-off problems. The optimization process helps to identify the activity start time during construction and the delivery frequency that will result in the minimal cost. What-if scenarios can be introduced to examine the effects of changes in construction logistics on project outcomes.

This paper presents a method for using GAs and an ABC approach to support construction logistics planning decisions. It will help construction planners and materials suppliers to establish material consumption and delivery schedules, rather than relying on subjective judgment.

A central problem of industrial robotics today is the development of systems for real‐world automatic assembly operations. Research groups in the US, UK, and Japan are currently taking a systems approach to computer‐controlled manipulation and are emphasizing hand/sensor/assembly‐task interactions. This paper surveys memory + sensory control prototypes and eye‐hand coordination prototypes at IBM, University of Nottingham, Hitachi, and Mitsubishi.

The purpose of this paper is to presents an interactive conjoint analysis Web-based system that allows the problems of traditional conjoint analysis to be avoided.In the case of a product with lot of parameters, respondents’ tacit preferences may be difficult to understand for marketing analysis. To get a precise analysis, respondents must be allowed to reconsider and correct by themselves their evaluations with an adapted tool.

This system also helps respondents to easily evaluate complex product profiles and to be involved in the evaluation process, which also leads to the creation of new knowledge for product design. As this system is designed for marketers and for respondents, this paper also presents the case of a product evaluation with attributes selectable by respondents.

This paper is based on empirical experiment to obtain an efficient design of our system. The authors propose different evaluation scenario to usersto decide the design of our system. The authors want to include users in our evaluation process; however, we found that too much liberty for users can interfere with our objective.

This paper present the design of our original system allowing to perform interactive conjoint analysis.

Successful use of automatic assembly in industry will require not only a complete re‐thinking, re‐assessment and evolutionary interaction but it will also demand that everything peripheral to the machine be considered as well.

This thesis concerns with a computer‐controlled assembly system using a robot. The system performs simple assemblies, determines the three dimensional position and orientation of parts which are supplied one by one, grasps the part from its respective appropriate direction, and inserts it into the other part.

This paper aims to investigate the influence of post-curing temperature, post-curing time and gamma ray irradiation dose upon the tensile and compressive mechanical properties of the medical graded vat photopolymerization parts.

Medical graded vat photopolymerization specimens, made from photopolymer resin, were fabricated using bottom-up vat photopolymerization machine. Tensile and compressive tests were conducted to assess the mechanical properties. The specimens were categorized into uncured and post-curing groups. Temperature post-processing and/or gamma irradiation exposure were for post-curing specimens. The post-curing parameters considered included temperature levels of 50°C, 60°C and 70°C, with 1, 2, 3 and 4 h periods. For the gamma irradiation, the exposure doses were 25, 50, 75 and 100 kGy.

Post-curing improved the mechanical properties of medical graded vat photopolymerization parts for both tensile and compressive specimens. Post-curing temperature greater than 50°C or a prolonged post-curing period of more than 1 h made insignificant changes or deterioration in mechanical properties. The optimal post-curing condition was therefore a 50°C post-curing temperature with 1 h post-curing time. Exposure to gamma ray improved the compressive mechanical properties, but deteriorated tensile mechanical properties. Higher gamma irradiation doses could decrease the mechanical properties and also make the part more brittle, especially for doses more than 25 kGy.

The obtained results would be beneficial to the medical device manufacturer who fabricated the invasive temporary contact personalized surgical instruments by vat photopolymerization technique. In addition, it also raised awareness in excessive gamma sterilization in the medical graded vat photopolymerization parts.

The continuous need for agility coupled with increasing labour costs and improvements in reliability and capability of automation has meant a renewed interest in the application of robots to many manufacturing activities. Research at the University of the West of England, Bristol has focused on the design of an integrated, modular system for the assembly of large products. The work under the ALASCA project has resulted in a number of technologies that will significantly affect assembly automation. The paper discusses the latest results from this work and presents the experimental conclusions thus far.