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For the automation of a production system a hardware-in-the-loop (HIL) simulation model of the mechanical system was developed and embedded on the controller. In a second level, the controller was simulated on a PC for designing and testing the human-machine interface (HMI). The task of the system is a PVD (physical vapor deposition) coating process for materials, which involves pulsed laser deposition...
Ferroelectric (e.g., PZT), ferromagnetic (e.g., Terfenol-D) and ferroelastic (e.g., shape memory alloy (SMA)) materials offer unique design and control capabilities for a range of present and emerging control applications. However, all of these materials exhibit creep, rate-dependent hysteresis, and constitutive nonlinearities that must be incorporated in model-based control designs to achieve stringent...
The analysis of production systems using discrete, event-based simulation is wide spread and generally accepted as a decision support technology. It aims either at the comparison of competitive system designs or the identification of a “best possible” parameter configuration of a simulation model. Here, combinatorial techniques of simulation and optimization methods support the user in finding optimal...
The edge stresses, which are responsible for all physical properties of nanoribbons, always involve two sided non-equivalent edge effects for zigzag honeycomb nanoribbons of two dimensional binary compounds such as BN and MoS2. In present work, we develop an approach to determine the edge stresses of individual non-equivalent zigzag edges. For prototypical system of BN zigzag nanoribbon, the edge...
This paper presents mathematical modelling and simulation of the thermal behavior in VLSI (Very Large Scale Integration) circuits. The mathematical model is based on the formulation of Heat Transfer equation and is discretized by finite difference method. The algorithm developed in Matlab® implements a computational model of a thermal transfer on substrate of VLSI circuit with arbitrary function and...
The rapid advancements in e-Learning technology enable each learner to have his/her own learning process based on his/her characteristics - this is called personalisation. Furthermore, recent developments in the field of semantic modelling have led to a renewed attention with focus on ontology-based e-learning systems. This paper describes learners' model ontology as a stage for creating personalised...
There are some quality and safety problems for material management in the construction project. Based on material batch mapping, we design a traceable model for material quality in this paper. in the model we define the traceable object (TOB). Based on traceable batch record and coding step by step, the model defines the batch quality feature (BOF). Based on the BOF, the model associates material...
Computational work is a vital part of many scientific studies. In materials science research in particular, theoretical models are often needed to understand measurements. There is currently a double barrier that keeps a broad class of researchers from using state-of-the-art materials science codes: the software typically lacks user-friendliness, and the hardware requirements can demand a significant...
Over the last decade, the world has faced a rapidly expanding and dynamic threat environment. As demonstrated by the 9/11 and 26/11 terrorist attacks, adversary capabilities have evolved to include advanced tactics and increased militancy. For the Department of Energy's National Nuclear Security Administration (DOE/NNSA), and other organizations responsible for protecting facilities housing special...
This work in progress explores the landscape of computing learning resources and environments found on the web together with teaching and learning materials that can facilitate the integration of “computational thinking” into the K-12 classroom. In specific, this paper focuses in finding and describing existing learning environments that integrate computational thinking into a STEM discipline together...
This paper outlines a grading system designed to replicate a manager's perception of an employee's reputation which starts out high and sinks with the employee's unprofessional behavior. By modeling this perception, our program has begun to increase the number of seniors who can successfully complete their capstone projects on time. This program stands out from other similar attempts increase consistent...
A preliminary physical and mathematical model (along with its associated MATLAB R2011a computer code) was developed to describe the density distribution in the tree radius. The relationships between density and the growth rate as well as the relationship between the growth rate and the environment parameters, such as ambient temperature and rainfall, have been established respectively in the model...
We discuss various verification and validation issues in computational modeling of a series of aluminum “thick-wire,” i.e., rod, experiments that have been conducted on the University of Nevada, Reno (UNR) Zebra generator (2 TW, 1 MA, 100 ns). These conceptually simple experiments involve multi-megagauss surface magnetic fields and have proven to be exceptionally rich in physical phenomena. The experiments...
In the national Japanese junior high school mathematics curriculum, students are required to understand the number of sides and vertices on regular polyhedrons. In the case of regular polyhedrons having 12 or more sides, it was found that improvement in the existing classroom technology was possible. We surveyed and evaluated solutions using recently available Augmented Reality (AR) and Mixed Reality...
This work describes the research activity in the Terafly project which aims at the development of an automated architecture for the inspection and measurement of industrial components. The project addresses flaw detection and analysis of para-aramid synthetic fiber components by means of Terahertz 3D tomographies and CAD models. This paper describes the stages of the system, from the model-to-object...
This paper presents a new pedagogical teaching model for foreign language learning. The effect of implementation of mobile-based blended instruction in classroom on the learners' attitude of learning a foreign language will be examined. Our blended learning model is defined as the combination of face-to-face lecture, pair work and collaborative practice, and individual-level shadowing and feedback...
This paper proposes the Place/Transition Sharing Composition on the basis of Petri net Sharing Composition, which be used in the metallurgical processes. It provides a theoretical basis for the Place/Transition modeling. Besides, the theorem of Place/Transition Sharing Composition lays the foundation for the validation of feasibility and analysis of performance of new technology and new process applied...
With continuing miniaturization and more prevalent use of Ball Grid Array (BGA) packages in the microelectronics industry, the mechanical strength of Printed Circuit Board Assemblies (PCBAs) with BGA packages is becoming very critical. In a variety of applications ranging from smart phones to high end switches and routers, the mechanical robustness of PCBAs is becoming the key differentiator in product...
Based on the Technology Acceptance Model (TAM) developed from the theory of reasoned action (TRA) and social psychology research by Davis (1989), this study models the use of the Internet-based modular object-oriented dynamic learning environment (Moodle) by students of the computer science department at Ming Chuan University (MCU), Taiwan. Apart from student demographics and background information...
Unified Modeling Language (UML) is an effective tool to model information systems and to develop effective system specifications. Context Aware systems possess a dynamic behaviour based on parameters such as time and location which makes the task of modelling a context aware system quite complex namely the security requirements of the system. Since UML doesn't provide specific use cases to model Context...
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