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The paper addresses the design and implementation of the logic control functions of a multi-recipe batch process. A hierarchical control structure is adopted, with one supervisor module co-ordinating many “slave” controllers. Suitable rules are given based on supervisory control theory for the synthesis of the supervisor, described with Petri nets. As for the slave controllers, it is shown that Grafcet/SFC...
The paper describes the application of heterogeneous computational infrastructures to study complex metallurgical processes. This goal is achieved by integration of a domain-oriented system (VirtRoll) with a platform for massive parameter studies (Scalarm) on the basis of Service Oriented Architecture (SOA). In particular, technological and security aspects of the integration and permissions delegation...
Knee osteoarthritis is a chronic joint inflammation disease that affects the aged population nowadays. The disease leads to gradual degradation of cartilage and thus deteriorates the function of the knee joint. Magnetic Resonance Imaging (MRI) provides promising results for the early detection of knee osteoarthritis. Conventionally, the MR image segmentation for knee osteoarthritis is manually done...
Recently, the “All Hazard” paradigm gained a large interest in the framework of Critical Infrastructure Protection, stressing the importance to guarantee an adequate level of service continuity in spite of any type of negative events, ranging from natural disasters to technological faults, considering both accidental and malicious actions. However, such an approach makes more difficult the analysis...
This article proposes the research and simulation of general bars of medium voltage metal enclosed switchgear, made of aluminum round bar with copper contacts, with a view to finding a similar or even more convenient solution than that of copper bars, both from a technical and economic point of view. The objective is heat distribution for current passing, in the bar and especially in contacts, under...
At present, there is a series of problems in project cost management of Chinese construction enterprise, to a certain extent, which affected the development of the construction industry China. Lean model experimental analysis which comes from lean production and management, has become the guiding ideology for a new round of management revolution. In this paper, the connotation of lean model experimental...
Electrically conductive adhesives are widely used in semiconductor technology. The focus of this work is set on Isotropic Conductive Adhesives (ICA) with a high amount of electrically conductive filler particles. The aim of this work is the material characterization of highly filled epoxy based die attaches materials by dynamic mechanical analysis (DMA) and relaxation experiments in order to derive...
We propose a novel THz material analysis approach which consists of a combination of a stratified dispersive model, an appropriate measurement configuration and a time-domain based fitting procedure. The measurement configuration is modeled as a stratified system where for each layer the light-matter interaction is realistically described. The method is illustrated for the industrial quality control...
The electrical performance and reliability of a through-silicon via is investigated through two-dimensional and three-dimensional simulations. Due to the large differences in material thicknesses present in the structures, a 3D simulation is often not feasible. The thermo-mechanical stress, the electrical parameters including TSV resistance and capacitance, as well as the electromigration-induced...
The aim of the paper is to present a structural characterization of the bell tower of the Cathedral of Trani (Bari, Italy) collecting the data of two different non-destructive techniques. The tower, built in 1200, is about 60 meters high and has a square plan with a side of about 7.50 meters; moreover, it is connected to the church through a step supported by a pointed arch. Firstly, an Operational...
The pneumatic actuator with artificial muscles in antagonistic connection was designed and realized as result of several research projects solved at the authors' workplace. Three simulation models of this actuator using different muscle models were created in Matlab/Simulink environment for obtaining of some actuator dynamic characteristics. The position of the actuator arm can be obtained from subsystem...
Under the background of economic globalization, the demand of the excellent bilinguals is growing rapidly in the whole world. The Chinese-Foreign Cooperation in Running Schools (CFCRS) came into being and is moving forward through twists and turns. It is necessary to find a suitable bilingual teaching model. This paper is mainly based on the status of bilingual teaching in the Chinese-Foreign Cooperation...
A multi-layer piezoelectric actuator (PEA) stacks piezo thin layers which can convert electric energy to deformation. It is widely used to generate nano-scale displacements. It is well known that the more layers one can stack for a given overall PEA length, the more deformation it can produce when excited by the same voltage. As a result, there is a tendency to reduce the thickness of piezo layers...
In this paper we present a thorough analysis of a low pull-in voltage Capacitive Micromachined Ultrasonic Transducer (CMUT) using SU-8 as the membrane material. It is designed to operate at 1 MHz frequency that has a wide range of applications including the imaging of deeper organs. We also propose a simple state-of-the-art fabrication methodology for the same. As compared to the standard Silicon...
The development of novel analytical BRDF models, as well as adaptive BRDF sampling approaches, rely on the appropriate BRDF measurement of real materials. The quality of measurements is even more critical when it comes to accurately representing anisotropic materials where the character of anisotropy is unknown (locations of anisotropic highlights, their width, shape, etc.). As currently there is...
Is an actor typically considered a human being? What about an autonomous entity? We investigate the typical feature structure of common modeling concepts in order to create an empirically grounded description of the semantic feature structure that people implicitly use while reasoning about, and with such concepts. Apart from the insights into modeling concept structure that this work presents, consequences...
This paper reviews different methods of thermal analysis, highlighting advantages, drawbacks, and limits. It represents the basics for both analytical methods and numerical ones; which the analytical method is discussed more in detail, including thermal coefficients relevant issues. Also, different applications are investigated, and related analytical and numerical techniques are represented. The...
The Prandtl-Ishlinskii (PI) model is a popular hysteresis model that has been widely adopted for smart material-based systems. Recently, an analytical inversion of a generalized PI model was formulated, facilitating the modeling and control of systems with hysteresis. The approach, however, does not allow the inclusion of a memoryless nonlinearity. In this paper we consider an extended generalized...
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