Miracle-dz/UniFAR-FTUs huggingface dataset:
Tool Heat Transfer in Orthogonal Metal Cutting

This paper analyzes heat flux transfer in the cutting tool in steady state orthogonal cutting. The method involves an iterative procedure to determine temperature distributions in the tool from varying heat flux transfer conditions. The temperature distributions determined from this procedure were compared with those obtained experimentally. A coincidence of the experimental and theoretical temperature distributions implied that the chosen heat flux model was appropriate. The experimental temperature distributions were obtained using a split carbide tip with special thermosensitive paint net. This prevented any split effect on the contact surfaces by films of any size and type. The investigation has provided two main insights. Firstly, it was apparent that the average temperatures determined from temperature models can be at large variance with those determined based on experimental observations. Thus, these models have to consider the effect of heat flux transfer peculiarity in the cutting tool if accurate predictions are desired. Secondly, it pointed to the necessity to account for such factors as heat flux reflection from tip sides, dependence of thermal properties on temperature and rise in temperature of the workpiece if accurate predictions are desired. It is demonstrated how the most accurate representation of heat transfer processes in the cutting tool can be determined through analyses based on accurate and reliable experimental temperature distributions.
New Agent-Based Egress Model Allowing for Social Relationships

AbstractMany of the models developed to date for human evacuation lack realism because of their inability to adequately simulate social relationships. To begin to address this shortcoming, an agent-based model is proposed based upon a new technique termed scalar field method (SFM). The new method draws on an analogy to a charged particle in an electromagnetic field. In the new model, virtual potential energies (VPEs), that can be made to represent both human will and social relationships, simulate the interactions that occur between an agent and its surrounding entities. Each agent has stochastic characteristics, is independent, and makes autonomous decisions regarding behavior by minimizing the VPE. The proposed model supersedes the pattern-based format of many current ones and provides the potential for greater emergence and variability. Preliminary tests show the ability of the new model to mimic reasonable evacuation behavior, and its potential for exploring the significance of social relationships du.
Transistor-level design of low-power nanoscale digital circuits for secure applications

Highly power-constrained secure applications such as RFIDs, present a great challenge for circuit designers who try to determine the best tradeoff between security and performance. “Computationally” secure applications are not secure anymore due to the physical information leakage of the hardware implementations that use static CMOS (e.g. the power consumption, . etc.). These types of physical information leakage are exploited by side-channel attacks. Consequently, it is the responsibility of circuit designers to develop new techniques that maximize the security of the implementation with minimum cost in terms of power consumption and area in light of the growing concern of variability associated to nano-CMOS technologies as well. Hardware-level solutions, specially DDL styles are seemingly attractive. Unfortunately, most of the proposed DDL styles in the literature consume and occupy a minimum of 2x the power and area of static CMOS, respectively. The work of this PhD thesis aims at optimizing the design of the previously introduced DDSLL style for low power, small area and adequate security enhancement compared to static CMOS. A DDSLL S-box is implemented on a LP 65 nm CMOS technology and it consumes ~ power to static CMOS and occupies ~ area. Also, DDSLL is 10x harder to attack than static CMOS. Even though the security gain of DDSLL is not sufficient compared to other types of countermeasures, its low power consumption and area overheads give more room to combine countermeasures.
Modelling of robot dynamics based on a multi-dimensional RBF-like neural network

The modelling of robot manipulator dynamics by means of a neural architecture is presented. Such a model able to generate a decoupling and linearising feedback in the control system of the robot. In a structured model approach, a RBF-like neural network (radial basis function NN) is used to represent and adapt all model parameters with their dependences on the joint positions. The neural network is hierarchically organised to reach optimal adjustment to the common structural knowledge about the identification problem. A fixed, grid based neuron placement, together with application of polynomial basis functions is utilised favourably for a very effective recursive implementation. In this way, a neural network based online identification of a dynamic model is enabled for a complete industrial 6 joint robot with reasonable effort and good results.
Influence of process variation on the functionality of a high-pressure sensor

A sensor designer has to keep in mind a couple of things developing a new product. These are performance, reliability and last but not least cost. Cost is mainly a function of yield. To be successful on the market, it is therefore necessary to predict yield for a new design, based on its process steps. This can be done only by modeling a sensor based on process parameters as input to the models. How to realize this, will be shown for the design of a high pressure sensor.
Leaky‐wave antenna with high gain and wide beam‐scanning angle range based on novel SIW‐CRLH transmission line

A leaky‐wave antenna (LWA) with high gain and wide beam‐scanning angle is proposed in this article using a novel substrate integrated waveguide (SIW) composite left/right‐handed transmission line (CRLH TL). The novel SIW‐CRLH TL is analyzed and the equivalent circuit model is also provided. Considering the continuous phase constant of the balanced SIW‐CRLH TL from negative to positive values, the proposed LWA can obtain a continuous beam steering property from backward to broadside to forward. For verification, a periodic LWA, which is comprised of 10 unit cells of the balanced SIW‐CRLH TL, is fabricated and measured. The measured and simulated results agree well, showing that the proposed periodic LWA operates from has continuous beam‐scanning capabilities of about 90° from backward to forward (including the broadside) with gains of better than 10 dB within the operating band. © 2015 Wiley Periodicals, Inc. Int J RF and Microwave CAE 26:36–41, 2016.
Kompetenzmodell Finanzielle Grundbildung. Umgang mit Geld als Thema der Basisbildung

Die Autorinnen des vorliegenden Beitrags machen ein Thema der Basisbildung auf, das in Osterreich bislang noch wenig diskutiert wird: Finanzielle Grundbildung oder „Financial Literacy“ befahigt Menschen, kompetent und mundig mit Geld und ihren Finanzen umzugehen. Welche Grundbildungskompetenzen sind beim Umgang mit Geld erforderlich? Fur welche Zielgruppen konnen Lernangebote konzipiert werden? Der vorliegende Beitrag stellt das Projekt „Schuldnerberatung als Ausgangspunkt fur Grundbildung – Curriculare Vernetzung und Ubergange“ (CurVe, Laufzeit 03/2013 bis 09/2015) des Deutschen Instituts fur Erwachsenenbildung (DIE) vor. Im Rahmen des Projekts wurde ein Kompetenzmodell entwickelt, das die Anforderungen im Bereich Umgang mit Geld explizit und ausschlieslich auf Basisbildungsniveau beschreibt. Die Inhalte Finanzieller Grundbildung wurden dabei nicht fachdidaktisch erarbeitet, sondern empirisch erhoben. Hierfur wurden zum einen ExpertInneninterviews mit 14 SchuldnerberaterInnen und 10 WeiterbildnerInnen aus dem Bereich Alphabetisierung und Grundbildung, zum anderen Forschende Lernwerkstatten mit 18 Ratsuchenden aus der Schuldnerberatung durchgefuhrt. (DIPF/Orig.) The authors of this article raise a basic skills issue that so far has received little attention in Austria: financial literacy enables people to handle money and their finances in a competent and responsible manner. What literacy skills are necessary to handle money properly? For which target groups can educational opportunities be designed? This article presents the “Debt counselling as a starting point for literacy – Curricular Networking and Transitions” project (“Schuldnerberatung als Ausgangspunkt fur Grundbildung – Curriculare Vernetzung und Ubergange”, CurVe in German), project of the German Institute for Adult Education (Deutsches Institut fur Erwachsenenbildung, DIE in German), which runs from 03/2013 to 09/2015. As part of this project, a competence model was developed that specifies the requirements of financial literacy explicitly and exclusively at the basic skills level. The financial literacy content was not defined theoretically, but instead gathered empirically. For this purpose, expert interviews were conducted with 14 debt advisors and 10 continuing education instructors from the field of language and literacy, as well as learning workshops were held by researchers with 18 advice-seekers from the field of debt advising. (DIPF/Orig.)
Development of Short-Term Load Forecasting Method by Analysis of Load Characteristics during Chuseok Holiday

The accurate short-term load forecasting is essential for the efficient power system operation and the system marginal price decision of the electricity market. So far, errors of load forecasting for Chuseok Holiday are very big compared with forecasting errors for the other special days. In order to improve the accuracy of load forecasting for Chuseok Holiday, selection of input data, the daily normalized load patterns and load forecasting model are investigated. The efficient data selection and daily normalized load pattern based on fuzzy linear regression model is proposed. The proposed load forecasting method for Chuseok Holiday is tested in recent 5 years from 2006 to 2010, and improved the accuracy of the load forecasting compared with the former research.
Study on the technique of distinguishing rock from coal based on statistical analysis of fast Fourier transform

An algorithm of distinguishing rock from coal based on statistical analysis of Fast Fourier Transform (FFT) is presented which can be used in the mechanized caving coal locales. First, eight groups of sound signals sampled with the speed 8192 samples/sec during caving are transformed by FFT. Second, the FFT results are analyzed and the ratios of the low frequency energy to the high frequency energy(ER) defined in the FFT results are calculated by using the variance analytical method (Var). Third, the typical values of the sound of the coal bumping the transporting coal armor plate, the rock bumping the armor plate and the mixing of coal and rock bumping the armor plate are calculated with the variances and the ratios(EV= ER *Var). Finally, the threshold of distinguishing rock from coal is evaluated by using the typical values and used to direct the opportunity for caving. We can learn by the experimental results that the proposed technique can depict effectively the different characteristics of the sampled signals. The experimental results also show that we can distinguish effectively different bumping sounds of coal, rock and the mixing of them by the characteristics when adjusting the threshold value. Therefore the algorithm can be used to improve the miners' productivity and promote the construction of digital mine.
Magnetic Field Calculation under Normal and Abnormal Conditions of Overhead Transmission Lines

Ground level magnetic field from overhead transmission lines (OHTLs) is of increasingly important considerations in several research areas due to their harmful effect on human health and environment. This paper computes the ground level magnetic field, under normal and abnormal conditions of Egyptian 500-kV single circuit transmission line, in three dimension (3-D) coordinates by using 3-D integration technique. Abnormal conditions include symmetric fault, un-symmetric faults, direct stroke, and indirect stroke on the OHTL. Where, ATP software is used to simulate the OHTL under all faulty and lightning conditions. Varying time magnetic fields under normal and abnormal conditions, at certain points that located at mid-span, tower height and right-of-way (ROW), are also computed that to indicate the worst case. DOI : http://dx.doi. org/10.11591/telkomnika.v12i5. 5151
Informação Personalizada no Web Site “Diferente todo mundo é!”

The objective of “Everybody is Different everybody! ” web site is to show personalized information about Down Syndrome and it to adjust to user profile. The informative content, the navigation and the presentation style will be personalized to reduce the disorientation and the cognitive overload, also, to satisfy the necessities, preferences and characteristics of the different users. This article focuses attention to aspects linked with the content personalization in the “Everybody is Different everybody! ” web site.
A new resonant link aircraft power generating system

A 400 Hz aircraft power generating system which has been designed to achieve significant improvements in power density and reliability is introduced. Design targets for this exploratory development program include system (generator-plus-converter) power density of 1 kVA/lb and mean-time-between-failure (MTBF) of 500 h. At the heart of the new variable-speed constant-frequency (VSCF) configuration is a high-frequency resonant link inverter designed so that all inverter switching occurs under zero-voltage conditions. Advantages include minimization of switching losses and significant reductions in power device switching stresses and electromagnetic interference (EMI) generation. Inverter losses are further reduced by using MOS-controlled thyristors (MCTs) as the power switches in order to take advantage of their low forward voltage. A 60 kVA breadboard version of the system has been constructed, and test results which confirm its key performance characteristics are presented. >
Operating high variability manufacturing systems

We present two factory control policies derived from optimal control considerations. Using sample factories distributed by Sematech, we compare the performance of these policies to other control strategies such as kanban and periodic lot release. We show that the policies designed for high variability environments have very attractive properties, including higher throughput than periodic release and much lower inventories than kanban.
A Positioning Scheme Combining Kalman Filtering with Vision Assisting for Wireless Sensor Networks

This paper presents the performance of an adaptive location estimator combining Kalman filtering (KF) scheme with vision-assisted scheme for wireless sensor networks. To improve the location accuracy, a KF tracking scheme is employed at a mobile terminal to track variations of the location estimate. In addition, with a vision-assisted calibration technique based on the normalized cross-correlation scheme, the proposed approach is an accuracy enhancement procedure that effectively removes system errors causing uncertainty in measuring a dynamic environment. Therefore, using the vision-assisted approach to estimate the locations of the reference nodes as landmarks, a KF-based scheme with the landmark information can calibrate the location estimation and improve the corner effect. The experimental results demonstrate that more than 60 percent of the location estimates computed from the proposed approach have error distances less than 1.4 meters in a ZigBee positioning platform. As compared with the non-tracking algorithm and non-vision-assisted approach, the proposed algorithm can achieve reasonably good performance.
Miniature microstrip patch antenna loaded with a space‐filling transmission line based on the fractal Hilbert curve

A novel miniature antenna loaded with a space‐filling shaped transmission line is presented. Return loss and antenna gain results are compared with a traditional square patch. Experimental results show that the antenna presents an electrical area 18 times less than the square patch. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 38: 311–312, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.11046
MANURE HAULING RATE OF SPREADER TANK SYSTEMS

Many livestock facilities use long-term storage and liquid slurry manure. Slurry spreading from these storages may increase peak labor demand and it may delay the timeliness of tillage and planting. Farm managers, consultants, and others working with machinery management use equipment capacity information to select machinery to complete field operations within the time available. A general model with machinery system-specific coefficients is proposed to predict an average effective hauling rate for tractor- and truck-drawn spreader tanks, and hauling systems using truck-drawn nurse tanks for over-the-road transport to tractor-drawn spreader tanks for field spreading. The hauling rate of commonly used systems is modeled as a function of spreader tank volume and transport distance. There was little difference in hauling rate between truck- and tractor-drawn spreader tanks when the spreading site was near storage, but truck-drawn spreaders increased the hauling rate about 60% with a 16 km (10 mi) haul. A truck-drawn nurse tank in series with a tractor-drawn spreader tank had a 45% greater hauling rate than a tractor-drawn spreader tank alone with a 16 km (10 mi) haul. The hauling rate of nurse tank and spreader systems could be increased by selecting a nurse tank with twice the volume of the spreader tank, or adding labor to allow parallel operation of the nurse tank and spreader.
The Design and Implementation of Online Meal Ordering System

With the upgrading of information industry and the development of Internet, different kinds of network applications are available to thousands of families. E-commerce, which is a new consumption mode based on Internet, emerges and spreads rapidly. Nowadays, people are care about food safety and convenience, and are so busy that the best choice for having meal is home delivery. Therefore, design a restaurant online meal ordering system is significantly important for people. This paper focuses on the design and implement of the online meal ordering system.
Continuous monitoring of curriculum via student communications components

Developing and maintaining a responsive curriculum along with an aim toward continuous improvement of both the student and the curriculum is a task that must be addressed not only by all engineering programs but by many other programs of study as well. The Electrical and Computer Engineering Department at Rose-Hulman Institute of Technology has developed a process that helps provide the feedback necessary to address these curriculum issues; specifically in terms of written and oral communications, team functioning, and design methodology. The use of an electronic "portfolio" as the repository for student submissions is the starting point for the process. The procedure is designed to allow both a horizontal review (through a particular course) and a vertical review (Sophomore through Senior). The monitoring program focuses on the departmental design sequence involving a one quarter course in each of the Sophomore and Junior years, and a three quarter course in the Senior year. The student teams in each course submit material (in electronic format), material such as: meeting agendas and minutes, memos, interim reports, oral presentation slides (PowerPoint), and final reports. All the material is submitted as part of their regular course requirements. The submitted material is stored and organized to allow any component (team agendas for example) to be reviewed easily both horizontally and vertically using the rubric developed as part of the process. The system is designed to be used by internal or external reviewers. The paper gives a discussion of the process that was developed and the underlying rationalization. Specific examples are presented as well.
Analysis of the Famous International Scrum-half Technique of Rugby Player and Its Significance to Rugby Training Education

This study analysis the Scrum-half technique of Australia team captain “George Gregan” of the man rugby (fifteens) “World Cup” championship. It reveals that the movement process, technical details and implementation of the Scrum-half of the world’s highest-level pass ball player in Rugby so that reasonable guidance (references) and specialized training focused on pass could be provided for the current rugby training education.
Towards multi-agent reinforcement learning for integrated network of optimal traffic controllers (MARLIN-OTC)

Abstract Traffic congestion can be alleviated by infrastructure expansions; however, improving the existing infrastructure using traffic control is more plausible due to the obvious financial resources and physical space constraints. The most promising control tools include ramp metering, variable message signs, and signalized intersections. Synergizing the aforementioned strategies in one platform is an ultimate and challenging goal to alleviate traffic gridlock and optimally utilize the existing system capacity; this is referred to as Integrated Traffic Control (ITC). Reinforcement Learning (RL) techniques have the potential to tackle the optimal traffic control problem. Game Theory (GT) fits well in modelling the distributed control systems as multiplayer games. Multi-Agent Reinforcement Learning (MARL) achieves the potential synergy of RL and GT concepts, providing a promising tool for optimal distributed traffic control. The objective of this paper is to clarify the opportunities of game theory concepts and MARL approaches in creating an adaptive optimal traffic control system that is decentralized but yet integrated through agents' interactions. In this paper, we comparatively review and evaluate the relevant existing approaches. We then envision and introduce a novel framework that combines GT concepts and MARL to achieve a Multi-Agent Reinforcement Learning for Integrated Network of Optimal Traffic Controllers (MARLIN-OTC).