bluuebunny/crossref_metadata_2025_split huggingface dataset:
The use of gabbro dust in the cold recycling of asphalt paving mixes with foamed bitumen
Authors: Iwański M. , Buczyński P. , Mazurek G. 
Published: December 2016

Abstract
Mineral fines are a waste product of aggregate production in quarries and asphalt mixing plants. The incorporation of mineral gabbro dust into foam bitumen causes developing of a mesh reinforcement in the recycled base mixture. This mesh reinforcement, observed in a recycled base structure, induces an increase in stiffness modulus, where its elastic part of complex modulus dominates over the imaginary part. Therefore, it is possible to create a recycled mixture with a lower susceptibility to loading time/temperature. In result, the presence of gabbro dust in recycled mixture limits the magnitude of strains induced by the traffic load. This paper presents the results of the tests carried out on the mineral dusts derived from gabbro rock. Structural and functional properties of the fines were determined to prepare their characteristics. Then, the cold recycled mixtures for the road base were designed with the 5–20% mineral fines content. The mixtures were prepared in cold recycling technology with foamed bitumen. Further tests involved determining mechanical and physical properties of the recycled mixes, including air voids content, Marshall stability, Marshall quotient (stiffness), indirect tensile strength and stiffness modulus at 20°C). The results indicated a positive influence of the gabbro dusts on the investigated parameters. With the use of ANOVA tests, the significance of the influence of the gabbro dust and foamed bitumen on these properties was evaluated. Harrington’s multicriteria method was employed to establish gabbro dust and foamed bitumen amounts, the addition of which would guarantee optimal properties of the recycled base mixture.
Verification of iris image authenticity using fragile watermarking
Authors: Czajka A. , Kasprzak W. , Wilkowski A. 
Published: December 2016

Abstract
This paper proposes and evaluates a watermarking-based approach to certify the authenticity of iris images when they are captured by a genuine equipment. In the proposed method, the iris images are secretly signed before being used in biometric processes, and the resulting signature is embedded into the JPEG carrier image in the DCT domain in a data-dependent way. Any alteration of the original (certified) image makes the signature no longer corresponding to this image and this change can be quickly identified at the receiver site. Hence, it is called fragile watermarking to differentiate this method from regular watermarking that should present some robustness against image alterations. There is no need to attach any auxiliary signature data, hence the existing, already standardized transmission channels and storage protocols may be used. The embedding procedure requires to remove some part of the original information. But, by using the BATH dataset comprising 32 000 iris images collected for 1 600 distinct eyes, we verify that the proposed alterations have no impact on iris recognition reliability, although statistically significant, small differences in genuine score distributions are observed when the watermark is embedded to both the enrollment and verification iris images. This is a unique evaluation of how the watermark embedding of digital signatures into the ISO CROPPED iris images (during the enrollment, verification or both) influences the reliability of a well-established, commercial iris recognition methodology. Without loss in generality, this approach is targeted to biometric-enabled ID documents that deploy iris data to authenticate the holder of the document.
FPGA-based bandwidth selection for kernel density estimation using high level synthesis approach
Authors: Gramacki A. , Sawerwain M. , Gramacki J. 
Published: December 2016

Abstract
Field-programmable gate arrays (FPGA) technology can offer significantly higher performance at much lower power consumption than is available from single and multicore CPUs and GPUs (graphics processing unit) in many computational problems. Unfortunately, the pure programming for FPGA using hardware description languages (HDL), like VHDL or Verilog, is a difficult and not-trivial task and is not intuitive for C/C++/Java programmers. To bring the gap between programming effectiveness and difficulty, the high level synthesis (HLS) approach is promoted by main FPGA vendors. Nowadays, time-intensive calculations are mainly performed on GPU/CPU architectures, but can also be successfully performed using HLS approach. In the paper we implement a bandwidth selection algorithm for kernel density estimation (KDE) using HLS and show techniques which were used to optimize the final FPGA implementation. We are also going to show that FPGA speedups, comparing to highly optimized CPU and GPU implementations, are quite substantial. Moreover, power consumption for FPGA devices is usually much less than typical power consumption of the present CPUs and GPUs.
Structures of vector control of n-phase motor drives based on generalized Clarke transformation
Authors: Janaszek M. 
Published: December 2016

Abstract
The paper presents vector control structures for n-phase AC motors derived from generalized Clarke transformation. In contrast to known works, where authors operate on generalized formulas of the Clarke transformation, in this work, only a number of actually used phases, of mostly industrial purposes, are considered (n = 5, 6, 2×3). This allows to perform control calculations in stationary orthogonal coordinates aβ or rotating dq. There are implementations of different control strategies: ROC (rotor-oriented control) or FOC (field-oriented control). Next, the paper presents the novel concept of a voltage modulator designed for multi-phase drive systems. Operation of the modulator is based on the extended Clarke transformation for multiphase systems. A mathematical model of the multiphase voltage modulator, operating in open-loop and closed-loop current control has been presented. Some selected oscillograms of voltage and current waveform, which illustrate properties of proposed control structures have been presented.
Input-output pairing criterion applied in the genetic algorithm for unstable linear systems
Authors: Baban P.Q. , Rahimabadi I.N. 
Published: December 2016

Abstract
In this paper, a new approach towards input-output pairing for an unstable system has been proposed. First, it is demonstrated that the previous method of input-output pairing for unstable plants cannot find appropriate pairs as it only checks necessary conditions for stability and integrity. Then, a new approach using relative error matrix and genetic algorithm for finding appropriate pairs in unstable systems is proposed. As it is shown, this approach takes into consideration both static and dynamic information of plant in measuring interaction. Finally, the accuracy of proposed method is demonstrated by an example and closed loop simulation.
Implementation of a Web-based remote control system for qZS DAB application using low-cost ARM platform
Authors: Korzeniewski M. , Kulikowski K. , Zakis J. , Jasinski M. , Malinowski A. 
Published: December 2016

Abstract
Continuous development of intelligent network applications drives the demand for deployment-ready hardware and software solutions. Such solutions are highly valued not only by distributed producers of energy but by energy consumers as well. The use of intelligent network applications enables the development and improvement of the quality of services. It also increases self-sufficiency and efficiency. This paper describes an example of such device that allows for the control of a dual active bridge (DAB) converter and enables its remote control in real time over an IP-based network. The details of both hardware and software components of proposed implementation are provided. The DAB converter gives a possibility to control and manage the energy between two DC power systems with very different voltage levels. Not only information, but also the quality of energy, the direction of power flow, and energy storage systems can be easily controlled through an IP-based network and power electronics converters. Information technology, together with intelligent control of power electronics technology, provides a flexible solution, especially for sustainable smart grids.
Dedicated system for design, analysis and optimization of AC-DC converters
Authors: Piasecki S. , Szmurlo R. , Rabkowski J. , Jasinski M. 
Published: December 2016

AbstractThis paper presents an originally-developed system for design and optimization of AC-DC converters dedicated in particular to operation in distributed generation systems. The proposed procedure is based on a multi-objective discrete optimization and expert knowledge of electrical engineering, especially power electronics. The required accuracy of calculations is obtained by using the database with real components, while the parameters applied in calculations are based on parameters provided by the manufacturer. The paper presents the foundations and basic system properties, the design and optimization process, and selected optimization results, obtained with a fully functional prototype of the design and optimization system (DaOS).
A study on power losses of the 50 kVA SiC converter including reverse conduction phenomenon
Authors: Rąbkowski J. , Płatek T. 
Published: December 2016

Abstract
This paper deals with performance of the 50 kVA three-phase converter built with switches based on SiC MOSFET and anti-parallel Schottky diodes. In contrast to popular IGBT converters, a negative switch current is capable of flowing through the reverse conducting transistor, which results in different distribution of power losses among the devices. Thus, equations describing the conduction power losses of the transistor and diode are improved and verified by means of circuit simulations in Saber. Moreover, a comparison of power losses calculated with the use of standard and new equations is also shown. Total power losses in three SiC MOSFET modules of a 50 kVA converter operating at 20 kHz are up to 30% lower when reverse conduction is taken into account. This shows the importance of the discussed problem and proves that much better accuracy in the estimation of power losses and junction temperatures of SiC devices may be obtained with the proposed approach.
Teachers’ and students’ motivation model as a strategy for open distance learning processes
Authors: Zaikin O. , Tadeusiewicz R. , Różewski P. , Busk Kofoed L. , Malinowska M. , Żyławski A. 
Published: December 2016

Abstract
Motivation and social aspects as interaction among teachers and students are essential for a successful learning process in an Open Distance Learning environment, and the goal of this paper is to develop an interactive model to manage motivation between the participants of that process. The article contains the concept of developing a motivation model aimed at supporting activity and cooperation of both the students and the teacher. The structure of the motivation model and formal assumptions are presented. The proposed model constitutes a theoretical formalization of a new situation in which a teacher and the students are obligated to elaborate on a didactic material repository content in accordance with the competence requirements. A mathematical method based on game theory and simulation is suggested. The conditions for applying simulation to the model are analyzed in two simulated cases.
Continuation of Prof. Władysław Latek’s research – revitalization of old power units
Authors: Krok R. , Pasko M. 
Published: December 2016

Abstract
The research conducted by Prof. Władysław Latek (1916‒1991) has contributed greatly to development in turbogenerator design. The economical transformation taking place in Poland after 1991 initiated the process of revitalization of old power units in electric power stations. For the past 25 years, a team of scientists continuing the work on perfecting the turbogenerator design and design methods has been working in the Faculty of Electrical Engineering of Silesian University of Technology. The work of this team has led to proposing and implementing many modernization projects for turbogenerators operating in Polish power plants, as well as in power plants in European Union and Asian states. Numerous novel and innovative solutions have made it possible to significantly increase turbogenerator power, improve effectiveness of electrical energy production and reliability and safety of operation.
“Disabled” Education Reform and Education Reform’s “Disability” A Case Study of an NGO’s Deaf Education Program in China
Authors: He Xiaoxing , 晓星 贺 
Published: December 2016

Abstract
This article focuses on a prominent NGO in mainland China, the Amity Foundation, and its programs for deaf education reform in recent years. Through analyzing primary sources, such as round table minutes, it presents a vivid process in special education reform and the engagement and influence of this NGO, as a critical social force, in education and its reform. The idea that the Amity Foundation advocates and propagates – that is, deafness as a distinct cultural or cross-cultural existence that education reform should fully acknowledge – is embodied in the “bilingual bicultural” education program for the deaf in many provinces of mainland China. Many of this program’s materials can help us to deeply understand the social and sociological meanings of education reform.
Comparative characteristics of professional predispositions of medical personnel
Authors: Markiewicz Renata , Gajewski Jacek , Żmuda Diana 
Published: December 2016

Abstract
Professional predispositions are an important component characterising people working as health care professionals. The aim of this study was to compare professional predispositions of students at medical courses with professionally active nurses. The study methods included a survey (SOPZ) and the Delta questionnaire. The analysis showed there were no differences in levels of sense of threat, responsibility and creativity in all analysed group, as well as while there was a differentiating influence of the sense of control in the analysed group of students.
Modern faces of hysteria, or some of the dissociative disorders
Authors: Stefańska Alena , Dziwota Ewelina , Stefański Marcin , Nasiłowska-Barud Alicja , Olajossy Marcin 
Published: December 2016

Abstract
The concept of “hysteria” comes from the Greek word “hystera” (uterus) and dates back to the time of Hippocrates, at least. Modern classifications differ regarding the area encompassed by the concepts of dissociation and conversion differ. Mental health professionals in the United States (DSM-5) use a standard classification of mental disorders codifying dissociative disorders as a distinct class of disorders, but subsumes conversion disorders under “somatoform disorders”. The history of hysteria is as long as the history of mankind. Apparently, both the essence and mechanisms of dissociative disorders remain unchanged despite the fact that many years have passed. According to Owczarek et al., dissociative symptoms are caused by the malfunctioning of defence mechanisms and anxiety. This article provides an overview of the available literature on the etiology and pathogenesis of dissociative disorders as well as disorders such as amnesia, dissociative fugue, trance and possession.
On Hermite-Hadamard Type Inequalities for s–Convex Mappings via Fractional Integrals of a Function with Respect to Another Function
Authors: Budak Hüseyin , Sarikaya Mehmet Z. 
Published: December 2016

AbstractIn this paper, we obtain some Hermite-Hadamard type inequalities fors–convex function via fractional integrals with respect to another function which generalize the Riemann-Liouville fractional integrals and the Hadamard fractional integrals. The results presented here provide extensions of those given in earlier works.
Uniqueness of Differential Polynomials of Meromorphic Functions Sharing a Small Function Without Counting Multiplicity
Authors: Oanh Bui Thi Kieu , Thuy Ngo Thi Thu 
Published: December 2016

Abstract
The paper concerns interesting problems related to the field of Complex Analysis, in particular Nevanlinna theory of meromorphic functions. The author have studied certain uniqueness problem on differential polynomials of meromorphic functions sharing a small function without counting multiplicity. The results of this paper are extension of some problems studied by K. Boussaf et. al. in [2] and generalization of some results of S.S. Bhoosnurmath et. al. in [4].
Bildungstheorie und Bewegungsforschung
Authors: Bunk Benjamin 
Published: December 2016

AbstractDie Bewegungsforschung analysiert gerne äußere Bedingungen um soziale Bewegungen, ihre Entstehung, ihren Verlauf oder Ergebnisse zu erklären. Oder sie untersucht vorausgehende Einstellungen und Motive von Individuen. So aber geraten sowohl die Eigendynamik von Situationen, die Binnenräume von Kollektivsubjekten und so deren Bedeutung für individuelle Bildungsprozesse aus dem Blick. Wie aber verändern sich Individuen in sozialer Bewegung? Die Bildung reflexiver Subjekte in sozialen und kulturellen Zusammenhängen aber ist die Problemstellung, mit welcher sich traditionell Bildungstheorie befasst; Grund genug, den Zusammenhang zwischen Bildungstheorie und Bewegungsforschung theoretisch als auch exemplarisch anhand der brasilianischenMovimento dos Sem Terrazu vertiefen: als pädagogischer Raum welcher Individuierungsprozesse und die Konstitution eigenwilliger Subjektivität ermöglicht.
„Wir sind SchülerInnen, keine Kunden!“
Authors: Alarcón Cristina 
Published: December 2016

AbstractSeit fast einem Jahrzehnt sind jene mit dunkelblau-weißen Schuluniformen gekleideten Jugendlichen von der politischen Landschaft, ja von der Tagespolitik Chiles, nicht mehr wegzudenken. An Geltung gewann diese SchülerInnenbewegung nicht nur, weil sie die erste massive soziale Protestbewegung seit dem Ende der Militärdiktatur (1973–1990) organisierte, sondern auch weil sie gegen die bis dahin nicht nahezu unangetasteten neoliberalen und autoritären Grundlagen des Bildungswesens rebellierte. Während vorige Studien sich vornehmlich mit der Entwicklung und/oder den sozialpolitischen Auswirkungen der Bewegung beschäftigt haben, analysiert dieser Beitrag die chilenische SchülerInnenbewegung als Bildungsort. Untersucht werden einerseits die sozialen Bewusstseinsprozesse, die die Bewegung für die Gesellschaft ankurbelte, andererseits die Lern- und Selbstbildungsprozesse, die die SchülerInnen im Rahmen der Bewegung durchliefen, wie z. B. die Aneignung von Kompetenzen der politischen Reflexion, Argumentation, Kommunikation und Mobilisierung. Der Beitrag gründet auf Interviews von SchülerInnen, sowie auf Berichten, Blogs, Webplattformen und Plakaten der Bewegung. Darüber hinaus wurden Periodika, Foto- und Videoquellen analysiert.
„La Educacion no se vende, se defiende“: Der Kampf um Bildung im post-autoritären Chile
Authors: Bechtum Alexandra 
Published: December 2016

Abstract
In Chile protestieren seit 2011 hunderttausende Studierende für eine bessere und kostenfreie Bildung. Während sich die Forderungen der Studierenden zu Beginn der Demonstrationen noch auf strukturelle Reformen des Bildungssystems beschränkten, wurden im weiteren Verlauf Rufe nach umfassenderen politischen und sozioökonomischen Veränderungen laut, mit denen zugleich politische Macht- und Verteilungsverhältnisse fundamental hinterfragt wurden. Dieser Beitrag geht der Frage nach, wie die chilenischen Bildungsproteste ihre gesamtgesellschaftliche Bedeutung entfalten konnten. Anhand von post-liberalen Ansätzen der Demokratietheorie wird aufgezeigt, dass die Studierenden mit ihren Protesten die politische Arena erweitern, wobei sie dem Charakter der chilenischen Demokratie diametral entgegenstehen. Ferner wird diskutiert, wie die Studierenden die Kritik am Bildungssystem als gesamtgesellschaftliches Problem konstruieren und auf diese Weise die Kontingenz gesellschaftlicher und politischer Problemlagen sichtbar machen.
Bildung als Instrument sozialer Bewegungen – der Fall der interkulturellen zweisprachigen Erziehung der Indigenenbewegung Ecuadors
Authors: Altmann Philipp 
Published: December 2016

Abstract
Viele soziale Bewegungen unterhalten Bildungsstrukturen, die die staatlichen ersetzen, verändern oder ergänzen sollen. Diese Anstrengung ist meist darauf ausgerichtet, zum einen einen besseren Zugang zu Bildung im weiteren Sinne für die jeweilige Zielgruppe anzubieten, zum anderen aber, auf diskursiver, organisatorischer und politischer Ebene, die soziale Bewegung selbst zu stärken und in der Gesellschaft zu verankern. In diesem Sinne ist Bildung ein Instrument sozialer Bewegungen. Die Indigenenbewegung Ecuadors hat seit ihrem Beginn in den 1930ern systematisch eigene Bildungsstrukturen aufgebaut, die die vom Nationalstaat gelassenen Lücken füllen sollten. Diese zuerst klandestinen Schulen wurden zunehmend anerkannt und in staatliche Strukturen integriert bis hin zur Schaffung einer von den Indigenenorganisationen autonom verwalteten staatlichen Behörde der interkulturellen zweisprachigen Erziehung 1988, die bis 2009 in diesem Sinne funktionierte. Die indigenen Bildungsstrukturen waren bis zu diesem Zeitpunkt ein Freiraum für die Bewegung, ein Zugang zu Ressourcen für ihre Mitglieder und eine Strategie der Verankerung der Organisationen in den indigenen Gemeinden. Gleichzeitig haben interne Bildungsstrukturen der Indigenenorganisationen zu ihrer Entwicklung entscheidend beigetragen.
Graswurzel-TechnologInnen: Kritische digitale Medienkompetenz in der amerikanischen Immigrantenbewegung
Authors: Costanza-Chock Sasha 
Published: December 2016

Abstract
Es ist mittlerweile allgemein bekannt, dass soziale Bewegungen die Vorteile des weitreichenden Zugangs zu Informations- und Kommunikationstechnologien (IKT) und Veränderungen in der Medienlandschaft wahrnehmen um die Stimmen ihrer Communities zu stärken. Aber welche Stimmen kommen zu Wort? In den USA haben im Ausland geborene, spanisch-sprechende Niedriglohn-ArbeiterInnen weniger Zugang zu digitalen Medien und der dafür nötigen Ausstattung mit Geräten, Kenntnissen und Breitband-Internet als jede andere Bevölkerungsgruppe. Gleichzeitig nutzt die Immigrantenbewegung digitale Medien oft auf innovative Weise und AktivistInnen in der Bewegung arbeiten daran, eine Praxis kritischer Medienkompetenz zu entwickeln, in die die soziale Basis eingeschlossen ist. In diesem Artikel baue ich auf ein Jahrzehnt Aktionsforschung auf um zu beschreiben, wie zusätzlich zu formalem IKT-Training in Klassen und Workshops informelles peer-to-peer Lernen in Freundschafts- und Familiennetzwerken die kritische Medienkompetenz fördert und die Immigrantenbewegung in den USA stärkt.