1,106 research outputs found
Redesigning Check-Processing Operations Using Animated Computer Simulation
This paper describes the steps taken by a major commercial bank in the USA to redesign a critical function within its check-processing operation. Animated simulation models of the current and new process were developed to understand the relationship between process parameters waiting times and productivity measures. We describe the animated simulation modeling approach in detail present sample results and provide directions for further use of such an approach in banking
Influence of geometric shape on the deformation performance of natural jute/epoxy specimens under axial quasi-static compression
The interest in the using of natural composite has been increased significantly in recent years in many application of life due to their distinctive characteristics these like low density, high-energy dissipation ability, and fatigue resistance. Indeed, a seemingly good alternative candidate to metals.This work displays the deformation performance of two different types of geometrical natural composite shapes when subjected to uniaxial quasi-static loading. The purpose is to study the effect of geometrical on the progressive collapse of composite specimens. Two geometrical composite tubes have been fabricated by combination technique of manual lay-up and vacuum bladder moulding. The two types of the proposed tubes, which are the circular and corrugated shape. The experimental work was performed by using bidirectional jute fabric (with 3 layers and 100mm in length) and epoxy resin. Six patterns (three for each one) were tested and evaluated in the same conditions to provide a proper means of comparison between different geometric shapes. The result exhibited both kinds of samples demonstrated stable and progressive deformation with acceptable repeatability during the test process. It also showed the ability to absorb the higher energy of the corrugated samples configuration than the circular samples. Overall, the corrugated pattern configuration can be considered the optimal for crashworthiness structure application compared to a circular composite sample
Production line: effect of different inspection station allocation under accepts reject inspection policy
Manufacturing system is one of the most important parts in any organization as it produces the output of the company which will generate the profit. It consists partly of the production line which plays the role as the centre of production to create the end product which could be half finished or the full product. It is a big problem for the company to determine which is the better arrangement and combination of the tools or machines available in this area of the organization as different combination will greatly impact the productivity of the production line together with the profit of the company. This research intend to analyze a new production line in a metal stamping company based on the complain from the company and try to explore the better layout or arrangement in the production line in reflect to the complained problem and constrain of the provided of accept the defect and repair inspection policy. The production line is first being analyzed in response to complain through computer simulation. After the problem had been identified, the researcher tried different alternatives in the attempt to seek for the better layout or arrangement in the production line. The effect of different inspection station allocation layout is then being evaluated in term of the production time. The research has resulted in the finding of the cause for the long production time in the factory which is the long inspection steps which consumed much of the production time. After a few alternatives have been explored in allocating the inspection station, it is obvious that the current approach of the production line is the better one. Even by reducing the number of inspection station, interesting enough, the production time does not seem to decrease but yet increased. This finding contradicts the normal thought of fewer stations means shorter time. This finding could be the founding basic in the future research regarding the allocation of the inspection station following certain provided policy. This is also very helpful in real life practice in company as to help them improve their production time. As for the time being, there is yet a research addressing this issue pertaining the given inspection policy
Proceedings of the Second Program Visualization Workshop, 2002
The Program Visualization Workshops aim to bring together researchers who design and construct program visualizations and, above all, educators who use and evaluate visualizations in their teaching. The first workshop took place in July 2000 at Porvoo, Finland. The second workshop was held in cooperation with ACM SIGCSE and took place at HornstrupCentret, Denmark in June 2002, immediately following the ITiCSE 2002 Conference in Aarhus, Denmark
A review on equipment protection and system protection relay in power system
Power system equipment is configured and connected together with multiple voltage levels in existing electrical power system. There are varieties of electrical equipment obtainable in the power system predominantly from generation side up to the distribution side. Consequently, appropriate protections must be apt to prevent inessential disturbances that lead to voltage instability, voltage collapse and sooner a total blackout took place in the power system. The understanding of each component on the system protection is critical. This is due to any abnormal condition and failure can be analyzed and solved effectively due to the rapid changing and development on the power system network. Therefore, the enhancement of power quality can be achieved by sheltering the equipment with protection relay in power system. Moreover, the design of a systematic network is crucial for the system protection itself. Several types of protective equipment and protection techniques are taken into consideration in this paper. Hence, the existing accessible types and methods of system protection in the power system network are reviewed
A review on equipment protection and system protection relay in power system
Power system equipment is configured and connected together with multiple voltage levels in existing electrical power system. There are varieties of electrical equipment obtainable in the power system predominantly from generation side up to the distribution side. Consequently, appropriate protections must be apt to prevent inessential disturbances that lead to voltage instability, voltage collapse and sooner a total blackout took place in the power system. The understanding of each component on the system protection is critical. This is due to any abnormal condition and failure can be analyzed and solved effectively due to the rapid changing and development on the power system network. Therefore, the enhancement of power quality can be achieved by sheltering the equipment with protection relay in power system. Moreover, the design of a systematic network is crucial for the system protection itself. Several types of protective equipment and protection techniques are taken into consideration in this paper. Hence, the existing accessible types and methods of system protection in the power system network are reviewed
Instruction with 3D Computer Generated Anatomy
Research objectives. 1) To create an original and useful software application; 2) to
investigate the utility of dyna-linking for teaching upper limb anatomy. Dyna-linking
is an arrangement whereby interaction with one representation automatically drives the
behaviour of another representation.
Method. An iterative user-centred software development methodology was used to build,
test and refine successive prototypes of an upper limb software tutorial. A randomised
trial then tested the null hypothesis: There will be no significant difference in learning
outcomes between participants using dyna-linked 2D and 3D representations of the upper
limb and those using non dyna-linked representations. Data was analysed in SPSS using
factorial analysis of variance (ANOVA).
Results and analysis. The study failed to reject the null hypothesis as there was no
signi cant di fference between experimental conditions. Post-hoc analysis revealed that
participants with low prior knowledge performed significantly better (p = 0.036) without
dyna-linking (mean gain = 7.45) than with dyna-linking (mean gain = 4.58). Participants with high prior knowledge performed equally well with or without dyna-linking.
These findings reveal an aptitude by treatment interaction (ATI) whereby the effectiveness of dyna-linking varies according to learner ability. On average, participants using
the non dyna-linked system spent 3 minutes and 4 seconds longer studying the tutorial.
Participants using the non dyna-linked system clicked 30% more on the representations.
Dyna-linking had a high perceived value in questionnaire surveys (n=48) and a focus
group (n=7).
Conclusion. Dyna-linking has a high perceived value but may actually over-automate
learning by prematurely giving novice learners a fully worked solution. Further research
is required to confirm if this finding is repeated in other domains, with different learners
and more sophisticated implementations of dyna-linking
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