bluuebunny/crossref_metadata_2025 huggingface dataset:
Distributed Manufacturing Systems with Digital Agent
Authors: Herakovič Niko , Zupan Hugo , Pipan Miha , Protner Jernej , Šimic Marko
Published: November 2019

This paper presents a novel approach to implement manufacturing nodes using the combined strength of digital twins, holons, and digital agents. Manufacturing nodes are based on holon theory and present a universal manufacturing platform that consists of cyber-physical systems (CPS) with an integrated digital twin, digital agent, databases and various communication protocols. The manufacturing node network is controlled globally using the global digital twin of logistics process and locally using the local nodes and local digital agents, digital twins and information shared by the node network. The main objective of this research was to develop and test a new concept of distributed system modelling and distributed system control for easy implementation of distributed manufacturing nodes in a smart factory concept.
Elastocaloric Cooling: State-of-the-art and Future Challenges in Designing Regenerative Elastocaloric Devices
Authors: Kabirifar Parham , Žerovnik Andrej , Ahčin Žiga , Porenta Luka , Brojan Miha , Tušek Jaka
Published: November 2019

The elastocaloric cooling, utilizing latent heat associated with martensitic transformation in shape-memory alloys, is being considered in the recent years as one of the most promising alternatives to vapour compression cooling technology. It can be more efficient and completely harmless to the environment and people. In the first part of this work, the basics of the elastocaloric effect (eCE) and the state-of-the-art in the field of elastocaloric materials and devices are presented. In the second part, we are addressing crucial challenges in designing active elastocaloric regenerators, which are currently showing the largest potential for utilization of eCE in practical devices. Another key component of elastocaloric technology is a driver mechanism that needs to provide loading for active elastocaloric regenerators in an efficient way and recover the released energy during their unloading. Different driver mechanisms are reviewed and the work recovery potential is discussed in the third part of this work.
Analysis of Al-Si coatings in terms of bendability
Authors: Moraczyński Oskar , Zinchuk Andrii , Kucharska Barbara
Published: November 2019

Protective coatings provide protection of structures against corrosion, but they also aim to meet marketing requirements – decorative qualities. One of the representatives of protective coatings are fire coatings based on Al and Al-Si, which have been used, among others, in the automotive industry. The production of Al-Si coatings using the fire method (known as: immersion) consists in immersing a previously degreased detail in a bath of molten coating metal. Al-Si coatings are applied permanently, and the connection between the coating and the substrate is ensured by the mutual diffusion of aluminum and iron, which leads to the formation of intermetallic phases. The study examines Al-Si coatings used in the automotive industry. The research included assessment of coatings in terms of structure, hardness distribution of elements, and surface condition (roughness). The chemical composition of the coatings was determined using EDX microanalysis and phase composition by diffractometric analysis. The final assessment focused on the impact of bending on the quality of the connection between the substrate and the coating.
Formation of white oxide coatings on aluminum using electrochemical method
Authors: Olkowicz Klaudia , Buczko Zofia , Tomassi Piotr
Published: November 2019

The possibility of obtaining white oxide coatings on aluminum was investigated. Until now, an industrial method of producing white and opaque oxide coatings on aluminum by electrochemical method has not been worked out. In some industries there is a need for a white surface finish of aluminum products. Two methods of obtaining white coatings and three sealing methods have been tested during the work. The quality of coatings has been tested according to standard QUALANOD tests, decorative values were additionally evaluated. The obtained coatings have been compared with transparent oxide coatings on aluminum, which have been obtained by conventional methods.
Tribological aspects of friction node tests: nitrided constructional steels versus heat treated steels
Authors: Senatorski Jan , Tacikowski Jan , Mączyński Paweł , Wach Piotr
Published: November 2019

The subject matter of the article are tribological and material tests of gas-nitrided constructional steels, including 38HMJ and AISI52100, cooperating frictionally with C45 toughened steel or 100Cr6 hardened steel. All friction tests were carried out using the standardized “3 cylinders – cone” method. The results of the obtained tests showed a slightly more beneficial effect of the cooperation of nitrided constructional steels with 100Cr6 hardened bearing steel.
Sistema inteligente para controle de acesso e monitoramento de múltiplos ambientes (class control)
Authors: Pereira Vitor , Dias Samaherni , Queiroz Kurios de
Published: November 2019

O conceito de cidades inteligentes vem se expandindo nos últimos anos e está cada vez mais presente em nosso cotidiano, mudando a forma como interagimos com outras pessoas e com a própria cidade. Graças ao progresso da tecnologia da informação, a Internet das Coisas, ou simplesmente IoT, tem contribuído fortemente para o desenvolvimento de soluções inteligentes, aprimorando o monitoramento e controle dos dispositivos. Assim, o problema de gerenciamento de acesso torna-se relevante, motivando o desenvolvimento de soluções para o seu aprimoramento. Este trabalho propõe um sistema de monitoramento e controle de acesso de múltiplos ambientes em um edifício institucional. A arquitetura do sistema proposto será baseada na computação em névoa. Uma trava inteligente foi projetada usando o microcontrolador ESP8266, programado para controlar e monitorar os ambientes com mais eficiência e segurança.
Proposta de um Sistema para Simulação em Hardware de Nanossatélites
Authors: Alves Alex , Dias Samaherni , Queiroz Kurios de
Published: November 2019

O advento da microeletrônica contribuiu para a criação de um padrão de nanossatélites, chamado CubeSat, que possibilitou uma redução no custo e no tempo de desenvolvimento de missões baseadas em satélites. Com a popularização desse padrão, várias instituições de ensino passaram a desenvolver pesquisas utilizando CubeSats. Para fins didáticos, foram criadas plataformas para simulação de nanossatélites em ambientes educacionais. Apesar dessas plataformas oferecerem uma alternativa para o ensino e o desenvolvimento da engenharia aeroespacial, elas apresentam um custo relativamente alto. Desse modo, neste artigo é apresentada uma proposta de um sistema para simulação de nanossatélites utilizando sistemas embarcados de baixo custo e uma plataforma IoT. A arquitetura do sistema proposto é descrita e são apresentados os resultados de alguns testes já realizados. Por fim, são apresentadas as conclusões e proposições para trabalhos futuros.
An Emulation Model For Embedded Networks used in Avionics
Authors: Moya Ramon Gómez , Corral Pablo , Froes Saulo M. , Lima Antonio Cezar de Castro , de Barros Filho Israel Eduardo , De Scals Guillermo
Published: November 2019

The objective of this document is to show how to create an emulation of an AFDX network with commercial switches. AFDX, is a standardized deterministic network which can be found inside big size aircrafts such as the Airbus A380 and the A350. This network is formed by End Systems and AFDX switches. The End systems are devices that send or receive data into or from the network. On the other hand, the AFDX switches are the devices which are responsible of the commutation of all the traffic. Throughout this paper we are going to map AFDX network features, using Cisco switches as AFDX switches and Linux computers as End Systems.
Enhancing the Search Tool of the Android Settings through Natural Language Processing
Authors: Horita Luiz Ricardo Takeshi , Paixão Júnior Múcio Donizetti , Matos Júnior João Batista Pereira
Published: November 2019

Smartphones have become essential to daily life, providing much more than communication services. Continuously, the device is getting "smarter" and more complex with additional features and sensors. Configuring those features may not be so easy for new users, and making the Settings app easy to use is challenging. With this in mind, a search tool was indexed on its initial screen. However, it is still not efficient enough. While most Android search tools will try to match exactly the queried words, a more intuitive tool capable of finding content related to the meaning of those words would be desirably better. In this paper, we propose a solution based on word2vec model to encode the context of each screen in order to get more robust and intuitive search approach on the Android Settings application. Although the search problem has not been entirely solved yet, experiments showed satisfactory results, which include resolving more than 82% of cases that cannot be handled by the search tool embedded to the Android Settings
Acelerando requisições de prováveis cache misses com requisições em paralelo cache/DRAM
Authors: Köhler Ricardo , Alves Marco Antonio Zanata
Published: November 2019

O uso de hierarquias de memória cache multi-níveis apresentam resultados interessantes quanto a exploração da localidade temporal e espacial no decorrer da execução de um programa. Ao manterem o conjunto de dados mais frequentemente acessados ou os prováveis dados a serem acessados próximos ao processador, as memórias cache proveem um acesso mais rápido ao dados, quando comparado ao acesso a memória principal. Entretanto, para programas com baixa localidade espacial e temporal, a hierarquia de memórias cache pode apresentar-se como uma barreira para a busca de dados na memória principal. Ou seja, para programas que não tiram proveito das memórias cache, essas acabam por adicionar um overhead no acesso aos dados, pois a busca de dados é feita inicialmente na hierarquia de cache antes de ser encaminhada para a memória principal. Por outro lado, os fabricantes de processadores evitam o envio paralelo de requisições de dados para a memória cache e a memória principal, a fim de evitar inundação de falsas requisições no controlador de memória. Com essa perspectiva, nesse artigo nós apresentamos o uso de um preditor simplificado de faltas de dados no LLC que, ao prever se uma requisição acabará por ser um LLC miss, induz o processador a efetuar uma requisição diretamente a memória principal, em paralelo a tradicional busca de dados percorrendo toda a hierarquia de cache. Em nossas simulações, o encaminhamento de requisições diretamente a memória principal, com base em nosso mecanismo apresentou um ganho de desempenho de até 40% quando single-core e até 14% quando multi-core.
A Multiserver User-space Unikernel for a Distributed Virtualization System
Authors: Pessolani Pablo
Published: November 2019

Nowadays, most Cloud applications are developed using Service Oriented Architecture (SOA) or MicroService Architecture (MSA). The scalability and performance of them is achieved by executing multiple instances of its components in different nodes of a virtualization cluster. Initially, they were deployed in Virtual Machines (VMs) but, they required enough computational, memory, network and storage resources to hold an Operating System (OS), a set of utilities, libraries, and the application component. By deploying hundreds of these application components, the resource requirements increase a lot. To minimize them, usually small footprint OS are used. Later, as management tools were improved, the application components began to be deployed in Containers which require even less resources than VMs. Another way to reduce the resource requirements is integrating the application components in a Unikernel. This article proposes a Unikernel called MUK, based on a multiserver OS, to be used as a tool to integrate Cloud application components. MUK was built to run in user-space inside a Container of a Distributed Virtualization System. Both technologies facilitate the scattering of application components in a virtualization cluster keeping the isolation properties and minimal attack surface of a Unikernel.
A Mesh Sensor Network based on Bluetooh: Comparing Topologies to Crop Monitoring
Authors: Alves Luan , Antunes Elida , Ferreira Ricardo , Augusto Nacif José
Published: November 2019

The growth of the world population increases the demand for food and other products from agriculture. Therefore, it is increasingly needed to enhance and optimize the productivity of farms. Through using a Wireless Sensor Network (WSN) and the application of the internet of things (IoT) technologies, we can better monitor the condition of farm crops. In this work, we designed a Bluetooth Low Energy mesh network joined fluorescence sensors for agricultural crop monitoring, and also we evaluated the suitability of this solution in a crop field scenario.
Swinging Door Trending Compression Algorithm for IoT Environments
Authors: Correa Juan David Arias , Pinto Alex Sandro Roschildt , Montez Carlos , Leão Erico Meneses
Published: November 2019

The transmission and storage of data collected by the devices are essential components of the Internet of Things (IoT). When devices send unnecessary or redundant information, it spends more energy, unnecessarily using the communication channel, besides processing at the destination, data that make a small contribution to the application. Data compression is a possible solution for the significant quantity of information generated by IoT devices. Data compression is the process of reducing the quantity of data necessary to represent some volume of data. This paper proposes the use of Swinging Door Trending (SDT) into an IoT environment and a new calibration step to select its major parameter: the compression deviation. A prototype was built, and experimental results show the effectivity of the proposal.
Taxonomical Keys for Morphological Identification of Coral-Associated Polychaetes from Great Nicobar Islands
Authors: Sekar Veeramuthu , Rajasekaran Ramadoss , Balakrishnan Srinivasan , Raguraman Ramamoorthy
Published: November 2019

The present study illustrates the insufficient taxonomy records and highlights the use of microscopic diagnostic tool in polychaete taxonomy. It leads to a better understanding of coral-associated polychaete taxonomy in Great Nicobar Islands, India. A total of 24 species under 14 genera, 7 orders, and 11 families were identified, in spite of 3 species of Phyllocidae, 8 species of Nereidae, 5 species of Eunicidae, 2 species of Spionidae, and 1 species of Opheliidae, Sabellariidae, Terebellidae, Polynoidae, Amphinomidae, and Sabellidae. The current status of taxonomic information varies greatly among taxa and among geographic areas within taxa. The problems encountered included nomenclature, diagnoses, and determination of taxonomic relationships. We provide examples of a variety of these problems. Each species has distinct features of the particular families, and taxonomic section to assist the polychaete identification that is necessary to assess the biodiversity and taxonomy at any level. This chapter considers the importance of monitoring biological diversity, current morphological taxonomy of polychaetes and describes the approach developed for protected areas in Great Nicobar Islands.
El Tribunal de Cuentas como garantía del Estado Social, del Estado Democrático y del Estado de Derecho
Authors: Biglino Campos Paloma
Published: November 2019

El Tribunal de Cuentas sigue siendo una institución poco analizada por el Derecho Constitucional español, a pesar de que desempeña una misión esencial para el buen funcionamiento de nuestro Estado Social y Democrático de Derecho. Este artículo analiza, en primer lugar, el papel que desempeña dicho órgano a la hora de garantizar el principio democrático y defiende un contacto más directo con los ciudadanos y una relación más fluida con el Parlamento. El papel del Tribunal de Cuentas con respecto al Estado de Derecho deriva de su actividad de fiscalización y, también, de enjuiciamiento. A pesar de las críticas que esta última ha recibido, resulta imprescindible para completar el ciclo del control. La institución es, también, necesaria para asegurar el Estado Social, sobre todo desde que la introducción del principio de equilibrio presupuestario ha hecho prestar mucha más atención a la eficiencia y economía del gasto público. El artículo trata, finalmente, de algunas reformas propuestas por el Tribunal de Cuentas Europeo y el Tribunal de Cuentas de Portugal tras la revisión por pares que esas instituciones hicieron del Tribunal de Cuentas en 2015. Para llevarlas a cabo sería conveniente reformar las Leyes que regulan al Tribunal de Cuentas y aconsejable una revisión del art. 136 de la Constitución.Although the Court of Auditors is an institution which is vital for our Democratic and Social State governed by the rule of Law, a better comprehension of the body from the Constitutional Law perspective is still required. Firstly, this paper analyses the role of the Court of Auditors as a guarantee of the democratic principle. On this issue, it will be advisable to set up a more direct contact with citizens and a more fluid relationship with Parliament. Secondly, this article studies the fundamental activity of the Court of Auditors as a guarantee of the rule of law principle, not only when the institution performs its audit function, but also its judicial function. In spite of the critiques which the last one has received, it is fundamental for completing the cycle of audit. Thirdly, the paper underlines the relevance of the Court of Auditors as a guarantee of the Social Estate, especially when the principle of budgetary balance imposes more efficiency and economy on public spending. Finally, the reforms proposed by the Tribunal de Contas Portuguese and the European Court of Auditors in their peer review of 2015 are analysed. Many of these suggestions can be implemented by changing the Laws which rule on the Spanish Court of Auditors. However, other proposal may make convenient a reform of Art. 136 of our Constitution.
La protección de los datos personales de los solicitantes de protección internacional en el (nuevo) Sistema Europeo Común de Asilo: grandes desafíos y graves deficiencias
Authors: García Mahamut Rosario , Viguri Cordero Jorge
Published: November 2019

El presente trabajo aborda un pionero análisis jurídico sobre la protección y tratamiento de los datos personales de los solicitantes de asilo y protección subsidiaria en la reforma integral en ciernes del Sistema Europeo Común de Asilo (SECA). Reforma que, entre otros innumerables aspectos, ha elevado la eficaz gestión de la información de la UE como clave de bóveda para proteger las fronteras exteriores, mejorar la gestión de los flujos migratorios y contribuir a reforzar la seguridad interior.El régimen jurídico en materia de protección de datos resulta especialmente fragmentado, complejo y difuso por cuanto que el RGPD, pese a que excluye de su aplicación las actividades relacionadas con el asilo, el control de fronteras y, la inmigración se encuentra directamente tipificado en las propuestas de Reglamentos de Dublín IV, de Procedimiento y de Eurodac. Paralelamente, las persistentes vinculaciones con la seguridad de los Estados miembros constatan la potencial aplicación la Directiva de protección de datos en el ámbito policial. A ello se le adiciona la interoperabilidad de los distintos sistemas de información, el despliegue de organismos asistenciales en frontera (Frontex o EASO) así como de las autoridades policiales, todos ellos vinculados directamente por sus propios reglamentos de desarrollo. En consecuencia, este marco jurídico fragmentado y especialmente complejo constituye especial objeto de análisis.The present work addresses an innovative legal analysis on the treatment and protection of personal data about asylum and subsidiary protection seekers in the comprehensive reform of the Common European Asylum System (CEAS). This reform, among other countless aspects, has increased the effective EU Information Management as the key to protect external borders, improve the management of migration flows and contribute to the enhancement of internal security. The applicable data protection legislation is significantly fragmented, complex and diffuse since, despite the GDPR excludes from its scope asylum-related activities, border control, and immigration is directly defined in the proposed Dublin IV, Procedures and Eurodac regulations. At the same time, the persistent linkages to the security of Member States can reflect the potential application of the Data Protection Directive on Police Matters. In addition, the interoperability of different information systems, the deployment of specific bodies (such as Frontex or EASO) as well as law enforcement authorities are bound directly by their own regulations. Consequently, this fragmented and particularly complex legal framework constitutes the subject of the study.
Las constituciones de los Estados federados; en particular las de los Estados norteamericanos
Authors: Seijas Villadangos Esther
Published: November 2019

En este artículo se aborda un estudio de las constituciones estatales de los Estados federados, a partir de dos premisas: la diversidad de las mismas entre los diferentes estados federales y su postergación por parte de la doctrina y de los ciudadanos. Tomando como referencia las constituciones estatales de los estados norteamericanos se ha tratado de clarificar la posición jurídica de las mismas en el sistema de fuentes y de conocer sus avatares a partir de un análisis de los aspectos más relevantes de su contenido. Como punto final se ha analizado la reforma de las mismas, proceso complejo en el que destaca la pluralidad de actores intervinientes, así como la variedad de requisitos.This article deals with a study of the state constitutions of the federal states, based on two premises: their diversity among the different federal states and their disregard by the doctrine and the citizens. Taking as reference the state constitutions of the North American states, it has been tried to clarify the legal position of the same in the system of sources and to know their vicissitudes from an analysis of the most relevant aspects of their content. As a final point, the state constitutions' amendment procedure is studied, a complex process in which the plurality of intervening actors stands out, as well as the variety of requirements in their processing and integration. This work is integrated in the need to know all the elements to be considered in a federalizing approach, beyond general and imprecise formulas.
La experiencia «Orange». La laboriosa introducción del voto electrónico en Holanda
Authors: Spoormans Huub
Published: November 2019

En estas notas, se describirá como fueron introducidas las máquinas de votación tras el año 1970 y por qué se paralizó el voto electrónico en 2006. Igualmente se analizarán cuáles fueron las novedades de las propuestas de reforma surgidas después del año 2007, y por qué llevo consigo demasiado tiempo la reincorporación de la votación electrónica.In this paper It will describes how voting machines were introduced after 1970 and analyze why the forward march of e-voting was halted in 2006. What is new in the proposals for reform after 2007 and how come that it takes so long to implement the reintroduction of electronic voting?
Addressing Physical Activity Behavior in Multiple Sclerosis Management
Authors: Donkers Sarah J. , Oosman Sarah , Milosavljevic Stephan , Musselman Kristin E.
Published: November 2019

Background:

Although physical activity (PA) is considered the most important nonpharmaceutical intervention for persons with multiple sclerosis (MS), less than 20% of people with MS are engaging in sufficient amounts to accrue benefits. Promotion of PA is most effective when combined with additional behavior change strategies, but this is not routinely done in clinical practice. This study aimed to increase our understanding of current practice and perspectives of health care providers (HCPs) in Canada regarding their use of interventions to address PA behavior in MS management. Investigating HCPs’ perspectives on implementing PA behavior change with persons with MS will provide insight into this knowledge-to-practice gap.

Methods:

Semistructured focus groups were conducted with 31 HCPs working with persons with MS in Saskatchewan, Canada. Based on interpretive description, data were coded individually by three researchers, who then collaboratively developed themes. Analysis was inductive and iterative; triangulation and member reflections were used.

Results:

Five themes were established: 1) prescribing, promoting, and impacting wellness with PA; 2) coordinating communication and continuity in practice; 3) timely access to relevant care: being proactive rather than reactive; 4) enhancing programming and community-based resources; and 5) reconciling the value of PA with clinical practice.

Conclusions:

The HCPs value PA and want more support with application of behavior change strategies to deliver PA behavioral interventions, but due to the acute and reactive nature of health care systems they feel this cannot be prioritized in practice. Individual- and system-level changes are needed to support consistent and effective use of PA behavioral interventions in MS.
Simple Current-Mode Square-Rooting Circuit with Temperature Compensation Using Only OTAs
Authors: Tangsrirat Worapong , Prasertsom Danucha , Pukkalanun Tattaya , Surakampontorn Wanlop
Published: November 2019

A simple current-controlled current-mode square-rooting circuit with temperature compensation employing operational transconductance amplifiers (OTAs) as active elements is proposed. It has been designed by using only four OTAs, without the employment of additional passive elements. The current gain of the proposed circuit can be electronically controlled, thanks to the tuning property of the OTA. Simulation and experimental results are obtained to verify the theoretical analysis of the proposed circuit technique.
Teaching Assembly and C Language Concurrently
Authors: Puhan Janez , Bűrmen Árpád , Tuma Tadej , Fajfar Iztok
Published: November 2019

The paper discusses whether (and how) to teach assembly coding as opposed to (or in conjunction with) higher programming languages as part of a modern electrical engineering curriculum. We describe the example of a very simple cooperative embedded real-time operating system, first programmed in C and then in assembler. A few lines of C language code are compared with the slightly longer assembly code equivalent, and the advantages and drawbacks are discussed. The example affords students a much deeper understanding of computer architecture and operating systems. The course is linked to other courses in the curriculum, which all use the same hardware and software platform; this lowers prices, reduces overheads and encourages students to reuse parts of a written code in subsequent courses. A student learns that badly written and poorly documented code is very difficult to reuse.
Implementation of Advanced Control Schemes Using dSPACE Material for Teaching Induction Motor Drives
Authors: Versèle C. , Deblecker O. , Bury G. , Lobry J.
Published: November 2019

This paper describes a project in which students must implement two advanced control schemes for a voltage-fed inverter induction motor drive, namely vector control and direct torque control, using a dSPACE platform and a Matlab/Simulink environment. With this platform, students can focus on these two control schemes without spending too much time on details concerning the implementation of the control algorithms on the board.
Does it Matter Which Comes First in a Curriculum for Engineering Students — Theory or Practice?
Authors: Swart Arthur James
Published: November 2019

The Department of Electronic Engineering at the Vaal University of Technology, South Africa, emphasizes the importance of practical instruction within a laboratory environment for engineering students, primarily through the design of electronics and telecommunication systems. This article uses the example of a module in radio engineering offered by the department to explore the importance of blending theory and practice in a curriculum for engineering students through two different approaches: presenting the theory before the practice; or the practice before the theory. The merits of both are discussed. The case study showed that either approach can be successfully implemented in a curriculum for engineering students.
Branch Exchange in Electrical Distribution Systems
Authors: Nursing Bhoomesh , King Robert T. F. Ah
Published: November 2019

This paper presents a branch exchange (BE) algorithm to solve network reconfiguration problems. The proposed technique involves a matrix manipulation approach, which has been devised by analysing the node–arc incidence matrix of the distribution network. A set of observations made on the network matrix permits the successful implementation of the BE technique by matrix manipulation. The approach presented here is simple and produces rapid results. Moreover, it can be implemented on large networks and can be used either as an exhaustive BE or as a heuristic BE. This method has been applied to 33 bus and 70 bus electrical distribution systems for the purpose of network reconfiguration for minimizing real power losses.
Oral Assessment in Engineering Education
Authors: Jensen Bogi Bech
Published: November 2019

This paper describes an oral assessment technique that has been used for over 20 years at the Centre of Maritime Studies and Engineering in the Faroe Islands. The technique has proven less laborious for the examiners and the students agree that this technique not only assesses their surface learning, as written examination often does, but digs deeper into their understanding of the subject area.
Motivating Two-Port Network Analysis through Elementary and Advanced Examples
Authors: Elwakil A. S.
Published: November 2019

We seek to motivate the use of two-port network circuit analysis techniques by proposing two examples: one is elementary, the other is advanced. In particular, we start by deriving the transmission matrices for small-signal equivalent models of the BJT and MOS transistors. We then proceed to the first example where we explain the function of a Gyrator in a very clear way aided by Spice simulations. In the second more advanced example, we show how to systematically analyse the classical Cascode amplifier in a general way that is independent of whether it is realized using a BJT or a MOS transistor. The two examples highlight the strength and generality of the not-so-popular two-port network analysis which is usually introduced to undergraduate students much later than other circuit analysis techniques. This delay results in a preference for using mesh and nodal techniques to model and analyse electronic circuits.
Open Physical Models in Control Engineering Education
Authors: Špinka Ondřej , Åkesson Johan , Hanzálek Zdeněk , Årzén Karl-Erik
Published: November 2019

This paper discusses the significance of physical models in engineering education. Obvious assets, drawbacks and the educational role of such models are discussed, and the idea of ‘open physical models’ is introduced. A couple of sophisticated open physical models (an unmanned rotorcraft and an inverted pendulum robot), used in control engineering courses, are presented. Basic ideas and concepts, use of the models in student courses and projects, as well as experiences of the authors, are also presented.
A Project-Based Competitive Learning Scheme to Teach Mobile Communications
Authors: Portilla-Figueras Antonio , Jiménez-Fernández Silvia , Salcedo-Sanz Sancho
Published: November 2019

This paper presents a project-based learning experience to teach mobile communications courses, carried out at Alcalá University, Madrid, Spain. The experience consists of a competition among teams formed by students, who act as consultant companies working for imaginary operators. The objective of the teams is to obtain the best network design and the most economical budget for an imaginary operator in the city of Alcalá de Henares. The proposed learning scheme uses existing concepts of different fields, such as the project-based or competitive games methodologies, and applies them to the teaching of telecommunications subjects. Details of the practical application of the methodology and results obtained at Alcalá University are discussed in this paper.
Proceso multi-hilo en base de datos
Authors: Puertas Estivill Pedro
Published: November 2019

El artículo trata sobre la necesidad en la planificación en un proyecto de procesos de cálculo costosos y en cómo implementarlos en una base de datos utilizando técnicas de multiproceso.
Sketchs, mockups, wireframes y prototipos
Authors: Salgado Carlos
Published: November 2019

El propósito de este artículo es estudiar las etapas del diseño de una web o una aplicación informática y analizar cuál es el modo de proceder al acometer un proyecto, teniendo en cuenta además el momento actual en el desarrollo de webs y aplicaciones informáticas en el que hay multitud de dispositivos, algo que previsiblemente se acentuará en el futuro.
Creación y publicación de un libro de aprendizaje de técnicas de manipulación fotográfica avanzadas
Authors: Molera Vidal Alba
Published: November 2019

Experiencia sobre el TFG de Alba Molera, alumna del grado multimedia, en el área de creación gráfica.
Aplicación de realidad aumentada y gamificación: «Story Maker»
Authors: Zango Novell Jordi
Published: November 2019

Desarrollo de una aplicación que hace uso de la realidad aumentada para la ayuda en el aprendizaje y práctica de un idioma y que tiene como objetivo motivar al usuario ya sea en la adquisición de competencias comunicativas en una lengua (ámbito escolar), como para aprender un idioma (academias) o para ayudarlo en terapias relacionadas con el habla (logopedia). También puede emplearse como juego socializador en moment...
Webcat: architecting happiness
Authors: Mosaic Editor
Published: November 2019

El WebCat es el punto de encuentro entre profesionales del sector web (desarrolladores, diseñadores, emprendedores, etc.) abierto a cualquier persona interesada en esta parcela. Dentro de WebCat se abordan asuntos diversos, tanto de forma introductoria como especializada, mediante breves exposiciones de no más de quince minutos con el objetivo de trabajar y transmitir una idea concreta al público. En esta ocasión @silviacalvet nos explica como desarrollar proyectos siguiendo la «Happiness Strategy».
ПРАКСА ЕВРОПСКОГ СУДА ЗА ЉУДСКА ПРАВА У ОДНОСУ НА ПРАВО ЕВРОПСКЕ УНИЈЕ
Authors: Мијовић Љиљана
Published: November 2019

Процес приступања Европске уније Европској конвенцији оосновним људским правима и слободама, као уговорне стране, али и стран-ке у поступку пред Европским судом за људска права, је у току и зависиод преговора који се воде. Без обзира на то, већ дужи низ година Европскисуд за људска права се бави одређеним питањима везаним како за правоЕвропске уније, тако и за међусобни однос држава чланица и саме Уније.У почетку ове праксе, тиме се врло опрезно бавила Комисија за људскаправа, више са теоретског, него са практичног аспекта, да би тек инсти-туционализовањем Европског суда за људска права биле створене прет-поставке за судско одлучивање у предметима од великог правног значаја,произашлим из праксе. Овај чланак се бави неким од тих питања.
ENTITIES OF LOCAL SELF-GOVERNMENT AS POSSIBLE HOLDERS OF HUMAN RIGHTS
Authors: Tratar Boštjan
Published: November 2019

In this article, the author, using the scientific method of comparisonand analysis, presents the case law regarding position of municipalities and otherself-governing local communities as entities of public law as potential humanrights holders. These self-governing local communities generally share theprincipled position of entities of public law, to which the legal order recognizes(merely) the status of the addressee of human rights, not the holder. From theconstitutional case law of some European countries (Germany, Liechtenstein,Switzerland), especially Slovenia, and the United States of America, as arepresentative of the Anglo-Saxon legal system, it follows that local communitiesare recognized as holders of human rights either by enforcing the so-calledprocedural human rights (as this does not require a link with exercising dignityof an individual) and property rights or the right to filing the so-called municipalconstitutional complaints when it comes to enforcing protection of local selfgovernmentagainst unconstitutional interference with the constitutional rightto local self-government. The author believes that the development of titularityof municipalities in relation to human rights, i.e. municipalities as holders ofhuman rights, is often subject to legal policy.
DONATION IN PROSPECT OF DEATH (DONATIO MORTIS CAUSA)
Authors: Raković Đorđe
Published: November 2019

Donation in prospect of death represents a legal transaction witha long legal tradition. This institute shares common Roman legal roots with atestament and legacy. In different time periods of the development of Roman law,donatio mortis causa had variable legal nature, with the dominance of the onecreated in the time of Justinian’s law wherein donatio mortis causa representeda legacy. It was an unencumbered desposal of a donor for the benefit of a doneewith effect after the death of the donor, under the condition the donee outlivedthe donor. As such, donatio mortis causa could be revoked.The disputable legal nature had marked further development of a donation inprospect of death.Hence, ACC accepted double nature of a donation in prospectof death, as a legacy and as a donation contract, while SCC accepted Romanconception. Such divergent interpretation has remained to date, since donatiomortis causa has not been regulated neither by current contract nor inheritancelaw. It is, generally, believed that donatio mortis causa represents a type ofdonation contract inter vivos, wherein the handing over of the object of donationhas been postponed until the death of the donor. It is a donation contract enteredinto under suspensive condition that occurs at the moment of death of the donor,and the condition is for the donee to ourlive the donor. If the donee happens todie before the donor, his heirs have a right to request handing over of the objectof donation.Donatio mortis causa contract, as a rule, is irrevokable.
NEW FACTS AND NEW EVIDENCE AS THE BASIS FOR REOPENING AN ADMINISTRATIVE DISPUTE IN THE REPUBLIC OF SRPSKA
Authors: Miljić Dražen
Published: November 2019

According to the Law on Administrative Dispute of Republic ofSrpska, new facts and new evidence present a legal basis that provides thepossibility for the dissatisfied parties to request a reopening of an administrativedispute even after alegally binding decision. However, although the partiesjustifiably and frequently try to use this legal remedy, in practice, it is rarelyallowed to apply it. This paper deals with the causes of such actions.
НОТАР КАО ПОВЈЕРЕНИК СУДА У ОСТАВИНСКОМ ПОСТУПКУ
Authors: Раковић Ђорђе
Published: November 2019

Нотарска служба је у правни систем Републике Српскеуведена Законом о нотарима који је донесен 2004. године, а први нота-ри су почели са радом 11.03.2008. године. Законом је регулисана надлеж-ност нотара да предузима нотарску обраду исправа, издаје нотарске по-тврде и врши нотарске овјере. Поред тога, суд или други орган властимогу нотару повјерити вршење и других послова који су у сагласности сањеговом надлежношћу. Тако је нотарима у циљу растерећења судова удијелу који се односи на спровођење оставинског поступка, а на основуЗакона о ванпарничном поступку додијељена и ова функција. Делегирањенадлежности нотарима у оставинском поступку практично је започелоступањем на снагу Закона о измјенама и допунама Закона о ванпарнич-ном поступку, јер, иако је постојао правни основ у чл. 145 Закона о ван-парничном поступку, због комликованости ни један оставински предметније додијељен нотарима.Суд је обавезан нотару повјерити спровођење оставинског поступка,а нотар има обавезу да прихвати спис предмета, осим ако неко од учес-ника у поступку не захтијева спровођење поступка искључиво пред судом.Нотар као повјереник суда у оставинском поступку може предузиматисве радње као и суд. Изузетно суд може нотару одузети спис предмета испровођење оставинског поступка повјерити другом нотару или пак самспровести поступак. Суд одређује нотару и рок у којем треба завршитиоставински поступак. На овај начин суд врши контролу рада нотара, по-ред корективне улоге коју има у случају кад се пред нотаром појаве спорнечињенице у погледу оставине. За спровођење оставинског поступка но-тар има право на награду, као и накнаду одређених трошкова али у знат-но мањем износу него што је то случај приликом предузимања других по-слова из своје надлежности.
(НЕ)ЗАКОНИТОСТ ПОСЕБНИХ ИСТРАЖНИХ РАДЊИ
Authors: Буха Милијана
Published: November 2019

Питање (не)законитости доказа чини нам се посебно зна-чајним, с обзиром да се у пракси сусрећемо са олаком примјеном посебнихистражних радњи, ради прикупљања доказа о извршењу католошких кри-вичних дјела. Посебне истражне радње се проводе због постојања основасумње о извршењу неког од кривичних дјела у погледу којих се може одре-дити примјена ових радњи, ради тога из приједлога тужиоца треба дасе уочавају чињенице које поткрепљују постојање основа сумње. Такође,једно од питања које је расправљено у раду јесте и судска контрола за-конитости посебних истражних радњи. Између осталог, у раду смо сеосврнули на законску мањкавост у кривичном процесном законодавст-ву Босне и Херцеговине, због сувише уопштене законске формулације, дасе посебне истражне радње могу одредити и за кривична дјела за којасе може изрећи казна затвора од три године или тежа. Основна тезарада је да су законити докази прибављени посебним истражним радња-ма, само ако су посебне истражне радње схваћене као крајње средствоу прикупљању доказа, како то налаже и члан 8 став 2 Европске Конвен-ције о заштити људских права и основних слобода. Примјеном посебнихистражних радњи долази у сукоб право са неправом. Ради тога смо у радууказали на условљену сличност између посебних истражних радњи и ин-титута нужне одбране.
НАЧЕЛА МЕЂУНАРОДНОГ ПРАВА КЛИМАТСКИХ ПРОМЈЕНА
Authors: Прерадовић Гордана
Published: November 2019

Рад се бави анализом правних начела међународног праваклиматских промјена. Ова начела имају одређене специфичности у од-носу на општа начела права заштите животне средине, с обзиром да суклиматске промјене глобалног карактера чије посљедице утичу готовона све људе и све екосистеме на Земљи. Борба са климатским промјена-ма се састоји од мјера ублажавања и мјера прилагођавања на климатс-ке промјене. Наведене мјере су засноване на сљедећим правним начелима,o којима је ријеч у овом раду: начелу одрживог развоја, начелу заједнич-ке али диференциране одговорности и одговарајућих могућности, начелупредострожности и начелу правичности. Анализа је извршена праћењемнаведених правних начела кроз међународне правне акте који регулишуправо климатских промјена, прије свега УН Оквирну конвенцију о промје-ни климе и Кјото протокол.
ПРАВНИ ПОЛОЖАЈ БАНКЕ У РЕПУБЛИЦИ СРБИЈИ
Authors: Милосављевић Мирослав , Милосављевић Јелена
Published: November 2019

Због великог значаја банака у привредном систему и с озиромда се на основу банкарских послова остварују јавни и приватни интереси,у раду се изучава појмовно одређење банке, врсте банака, оснивање банке,управљање њеним радом и пословањем, индивидуализација банке, правнопословање, однос банке са клијентима и престанак банке.Приликом изучавања наведене области коришћен је, првенствено, нор-мативни метод, да би се сазнала садржина правних норми са којима сеуређује област банкарства, пре свега у Републици Србији.
Replay as wavefronts and theta sequences as bump oscillations in a grid cell attractor network
Authors: Kang Louis , DeWeese Michael R
Published: November 2019

Grid cells fire in sequences that represent rapid trajectories in space. During locomotion, theta sequences encode sweeps in position starting slightly behind the animal and ending ahead of it. During quiescence and slow wave sleep, bouts of synchronized activity represent long trajectories called replays, which are well-established in place cells and have been recently reported in grid cells. Theta sequences and replay are hypothesized to facilitate many cognitive functions, but their underlying mechanisms are unknown. One mechanism proposed for grid cell formation is the continuous attractor network. We demonstrate that this established architecture naturally produces theta sequences and replay as distinct consequences of modulating external input. Driving inhibitory interneurons at the theta frequency causes attractor bumps to oscillate in speed and size, which gives rise to theta sequences and phase precession, respectively. Decreasing input drive to all neurons produces traveling wavefronts of activity that are decoded as replays.
Persistent epigenetic memory impedes rescue of the telomeric phenotype in human ICF iPSCs following DNMT3B correction
Authors: Toubiana Shir , Gagliardi Miriam , Papa Mariarosaria , Manco Roberta , Tzukerman Maty , Matarazzo Maria R , Selig Sara
Published: November 2019

DNA methyltransferase 3B (DNMT3B) is the major DNMT that methylates mammalian genomes during early development. Mutations in human DNMT3B disrupt genome-wide DNA methylation patterns and result in ICF syndrome type 1 (ICF1). To study whether normal DNA methylation patterns may be restored in ICF1 cells, we corrected DNMT3B mutations in induced pluripotent stem cells from ICF1 patients. Focusing on repetitive regions, we show that in contrast to pericentromeric repeats, which reacquire normal methylation, the majority of subtelomeres acquire only partial DNA methylation and, accordingly, the ICF1 telomeric phenotype persists. Subtelomeres resistant to de novo methylation were characterized by abnormally high H3K4 trimethylation (H3K4me3), and short-term reduction of H3K4me3 by pharmacological intervention partially restored subtelomeric DNA methylation. These findings demonstrate that the abnormal epigenetic landscape established in ICF1 cells restricts the recruitment of DNMT3B, and suggest that rescue of epigenetic diseases with genome-wide disruptions will demand further manipulation beyond mutation correction.
Neural representation of newly instructed rule identities during early implementation trials
Authors: Ruge Hannes , Schäfer Theo AJ , Zwosta Katharina , Mohr Holger , Wolfensteller Uta
Published: November 2019

By following explicit instructions, humans instantaneously get the hang of tasks they have never performed before. We used a specially calibrated multivariate analysis technique to uncover the elusive representational states during the first few implementations of arbitrary rules such as ‘for coffee, press red button’ following their first-time instruction. Distributed activity patterns within the ventrolateral prefrontal cortex (VLPFC) indicated the presence of neural representations specific of individual stimulus-response (S-R) rule identities, preferentially for conditions requiring the memorization of instructed S-R rules for correct performance. Identity-specific representations were detectable starting from the first implementation trial and continued to be present across early implementation trials. The increasingly fluent application of novel rule representations was channelled through increasing cooperation between VLPFC and anterior striatum. These findings inform representational theories on how the prefrontal cortex supports behavioral flexibility specifically by enabling the ad-hoc coding of newly instructed individual rule identities during their first-time implementation.