bluuebunny/crossref_metadata_2025_split huggingface dataset:
Synchronization Stability of Grid-Connected VSC with Limits of PLL
Authors: Li Yujun 
Published: June 2022

<p>Limits of phase locked loop (PLL) are necessary to make sure the transient converter frequency bounded in a safety range. This leads to the grid-connected voltage source converter (VSC) with limits of PLL as one switched system. Stability of switched dynamic system is fully discussed in this paper. One conservative analytical stable region of the unbounded autonomous system is derived by Lyapunov method. It is proved that when bounds are touched, any trajectory of the studied switched system deviates from these bounds at two fixed switching Points. Moreover, the switched system energy is non-increasing when trajectories lie inside the derived analytical stable region. Based on these properties of switched system, it is proved that to ensure the globally asymptotically stability, the fixed switching Points should be placed inside the derived stable region of the unbounded autonomous system. Finally, stabilization method is proposed via placement of the fixed switching Points so that the globally asymptotically stability is ensured. </p>
An Enhancement of Network Reliability for Patient Monitoring System with IoT Rehabilitation Devices
Authors: Buranapanichkit Dujdow , Pornchalermpong Nonpakit , Thongnoo Krerkchai , Thongpull Kittikhun , Chetpattananondh Kanadit , Duangsoithong Rakkrit , Sengchuai Kiattisak , Jindapetch Nattha 
Published: June 2022

This paper presents a patient monitoring system that can support multiple IoT (Internet of Things) rehabilitation devices. The physicians can plan the treatment for each patient via the Internet connection system with our software which has three sub processes: device configuration, monitoring, as well as feedback. The proposed system has been designed to support multiple devices and various types of rehabilitation devices by using the common HTTP protocol. This allows various IoT platforms to be programed to control various rehabilitation devices and connect to the Internet via WLAN, LAN, or cellular networks. The network connection test reported that the system can support many users’ devices sending the measurement data concurrently as well as correctly. Moreover, we propose a network selection algorithm for mobile devices that considers both Wi-Fi and cellular using energy efficiency, packet delay, and UDP success rate as key parameters to enhance network connection reliability. This algorithm is able to make sure that the network connection for transmitting the important data is always the very best in terms of reliability and efficiency. The system reliability test reported approximately 99% success rate for sending data to the servers with a low data rate. Consequently, this system works well in real world applications.
On-sky Reconstruction of Keck Primary Mirror Piston Offsets Using a Zernike Wavefront Sensor
Authors: van Kooten Maaike A. M. , Ragland Sam , Jensen-Clem Rebecca , Xin Yinzi , Delorme Jacques-Robert , Kent Wallace J. 
Published: June 2022

Abstract
The next generation of large ground- and space-based optical telescopes will have segmented primary mirrors. Co-phasing the segments requires a sensitive wavefront sensor capable of measuring phase discontinuities. The Zernike wavefront sensor (ZWFS) is a passive wavefront sensor that has been demonstrated to sense segmented-mirror piston, tip, and tilt with picometer precision in laboratory settings. We present the first on-sky results of an adaptive optics fed ZWFS on a segmented aperture telescope, W.M. Keck Observatory's Keck II. Within the Keck Planet Imager and Characterizer light path, the ZWFS mask operates in the H band using an InGaAs detector (CRED2). We piston segments of the primary mirror by a known amount and measure the mirror's shape using both the ZWFS and a phase retrieval method on data acquired with the facility infrared imager, NIRC2. In the latter case, we employ slightly defocused NIRC2 images and a modified Gerchberg–Saxton phase retrieval algorithm to estimate the applied wavefront error. We find good agreement when comparing the phase retrieval and ZWFS reconstructions, with average measurements of 408 ± 23 and 394 ± 46 nm, respectively, for three segments pistoned by 400 nm of optical path difference (OPD). Applying various OPDs, we find that we are limited to ∼100 nm OPD of applied piston, due to insufficient averaging of the adaptive optics residuals of our observations. We also present simulations of the ZWFS that help to explain the systematic offset observed in the ZWFS reconstructed data.
Hard X-Ray Emission in Centaurus A
Authors: Rani B. , Mundo S. A. , Mushotzky R. , Lien A. Y. , Gurwell M. A. , Kim J. Y. 
Published: June 2022

Abstract
We use 13 yr of Swift/BAT observations to probe the nature and origin of the hard X-ray (14–195 KeV) emission in Centaurus A. Since the beginning of the Swift operation in 2004, significant X-ray variability in the 14–195 KeV band has been detected, with mild changes in the source spectrum. Spectral variations became more eminent after 2013, following a softer-when-brighter trend. Using the power spectral density (PSD) method, we find that the observed hard X-ray photon flux variations are consistent with a red-noise process of slope, −1.3, with no evidence for a break in the PSD. We find a significant correlation between the hard X-ray and 230 GHz radio flux variations, with no time delay longer than 30 days. The temporal and spectral analysis confirms that the X-ray emission generated by the accretion in the ADAF model is sub-dominant as compared with the emission arising from that produced by the inner regions of the radio jet.
Des dispositifs en socio-clinique institutionnelle pour penser l’inclusion
Authors: de Saint Martin Claire 
Published: June 2022

Les dispositifs de socio-clinique institutionnelle analysés ici présentent la particularité de se faire avec des personnes en situation de handicap, élèves de classes spécialisées, stagiaires d’une formation théâtrale. Ils visent à permettre à tous de réfléchir collectivement à la question de l’inclusion et sont continuellement réinventés, en situation et à partir du collectif. Quels effets (individuels, collectifs, scientifiques) cette intervention socio-clinique institutionnelle spécifique produit-elle ?
Former les cadres du travail social à la recherche par l’analyse institutionnelle
Authors: Rougerie Corinne , Monceau Gilles 
Published: June 2022

L’article montre comment le cadre théorique de l’analyse institutionnelle et la démarche de la socio-clinique institutionnelle peuvent constituer des points d’appui pour former à et par la recherche des étudiants issus ou se préparant aux fonctions d’encadrement dans le secteur de l’intervention sociale. L’analyse des implications professionnelles et étudiantes de ces étudiants « hybrides », en tension permanente entre formation et activités professionnelles, constitue le fil conducteur de l’article.
Affirmation de l’absolu et expérience de la liberté
Authors: Rabourdin David 
Published: June 2022

Dans la philosophie de Bruaire, la notion de liberté apparaît doublement, à la fois dans le sérieux de l’expérience – de l’épreuve – qu’elle offre à l’homme, et dans sa pertinence analogique à l’heure d’affirmer Dieu. La philosophie de Bruaire a pour force d’avoir puisé, en la polarité du concept de liberté, la ressource pour penser et affirmer l’absolue liberté : c’est précisément parce que la liberté humaine ne peut se penser elle-même absolue, qu’elle peut penser une liberté absolue ; c’est parce qu’elle expérimente sa consistance relative, la vérité de son être dans la limitation de sa puissance, que l’attribution analogique de la liberté à l’absolu lui est possible.
Analogie et vie
Authors: Sequeri Pierangelo 
Published: June 2022

La valeur historique et théorique de la tradition métaphysique de l’analogie consiste essentiellement dans le développement d’une doctrine de composition entre l’unité de l’être et la multiplicité de l’être, ouverte à l’intégration de la relation de causalité avec celle de participation. Cependant, son application à la différence spécifique du monde de la vie apparaît limitée par l’absence de prise en compte du dynamisme relationnel des formes et de la créativité générative des forces qui sont la caractéristique fondamentale de l’être vivant (de son immanence et de sa transcendance). La présente réflexion se propose d’indiquer les lignes de cette nécessaire intégration : tant du point de vue de l’ontologie phénoménologique de l’être vivant, que du point de vue de la doctrine théologique de la création.
Italian Madrid: Ambassadors, Regents, and Courtiers in the Hospital de San Pedro y San Pablo
Authors: Rivero Rodríguez Manuel 
Published: June 2022

The Court…, more accurately, the city where the Court resided, was a microcosm of the Monarchy that was governed from it. That was the case in Madrid. This paper deals with a little-known institution, the Hospital and the Church of the Italians, analysing above all its transformation in the 17th century through two important documents, the personal diary of a Neapolitan regent and a record of a conflict of powers between the Council of Italy and the nunciature in Madrid containing the hospital’s founding documents.
Residences as instruments of power: Venetian ambassadors’ houses in Madrid during the reigns of Philip IV and Charles II
Authors: Quiles Albero David 
Published: June 2022

Against the traditional vision, the relations between the Spanish Monarchy and the Republic of Venice improved significantly during the second half of the 17th century. Once again, the war against the Ottomans in Candia (1645-1669) forced the Serenissima to look for the support of the Catholic King. For this reason, the role played by their ambassadors in Madrid, with a view to achieve the necessary assistance of Philip IV, became essential for the Venetian interests. At the same time, they pursued to ensure a relevant and closer position to the principal nucleus of power in the Spanish court. Accordingly, the continuous disputes with the members of the Spanish institutions with regard to their lodging become an essential field of study to measure the degree of influence, supremacy or immunity of these legates during the reigns of the two last monarchs of the House of Austria.
Female Agents at the Royal Palace of Madrid: Political Interests, Favors and Gifts (ca. 1598-1640)
Authors: Franganillo Álvarez Alejandra 
Published: June 2022

The rise of the New Diplomatic History in the late twentieth century led to a methodological revolution altering the foundations of traditional historiography.2 One of the principal consequences were a new recognition that there were multiple sorts of diplomatic agents that included artists, businessmen, men of the church, travelers, and women. It is this last group to which we devote this essay. In this paper we will analyze several case studies in order to offer a general perspective of the mechanisms used by these female agents so as to establish a pattern of behavior. We will focus on aristocratic women at the Madrid court during the reign of Philip III and Philip IV in order to know how the foreign ambassadors approached these women seeking information. These women get in return gifts and mercedes for them, their families and members of their patronage networks. Finally, we will study the multiple fidelities developed by female agents.
The construction of a web narrative about the Portuguese colonial war: a critical perspective on Wikipedia
Authors: Ferreira Verónica 
Published: June 2022

As part of recent research into the Portuguese colonial war in the sphere of memory studies, this article seeks to fill a gap in the underexplored field of digital memories. It aims, firstly, to explore the processes through which discourses about the Portuguese colonial war are produced in the Portuguese version of Wikipedia, looking at its dynamics and mechanisms of construction, including formal and informal rules; and secondly, to analyse that discourse using theoretical and methodological considerations from critical discourse analysis (CDA), complemented with concepts of absence and silence, which enable a reflection on the relationship between power, knowledge and memory. The article also explores the limits of Wikipedia as regards the formation of collaborative narratives about the past, arguing that they are marked by the reproduction of Eurocentric narratives which circulate in political, educational and media discourses, and also by the memories of more conservative sectors of Portuguese society, such as war veterans and former settlers returning from the colonies (the so-called retornados). These narratives mask the colonial violence and resistance to it that preceded the colonial war and depoliticize the struggle of the national liberation movements.
Los planos de estructura de la Villa Savoye
Authors: Zaparaín Hernández Fernando , Ramos Jular Jorge , Llamazares Blanco Pablo , Barba Rodríguez Daniel 
Published: June 2022

Este artículo propone la elaboración y análisis de un modelo 3D y unas plantas detalladas de la estructura de la Villa Savoye, algo hasta ahora no abordado monográficamente. Se basa en mediciones in situ y documentos originales de la Fundación Le Corbusier, como planos del contratista, precios contradictorios, fotos de la construcción y unas filmaciones amateurs. Un conjunto de fuentes así, hace de esta obra un caso privilegiado para conocer cómo se empleaba el hormigón armado en aquella época de su generalización. Se comprueba la ambigüedad estructural de Le Corbusier, que pone «la expresión de las formas plásticas», por encima del cálculo racional o la mera manifestación del esqueleto portante. Para ello manipula el sistema arquitrabado clasicista de Perret. Al retranquear las vigas descolgadas y los pilares, el esquema no se aprecia como una «jaula», sino como una tabla apoyada en «caballetes», o unas baldas «pinchadas» en finas patas.
Evaluation of Mobile Augmented Reality Hearing-Impaired Museum Visitors Engagement Instrument
Authors: Esraa Jaffar Baker  , Juliana Aida Abu Bakar  , Abdul Nasir Zulkifli  
Published: June 2022

Mobile Augmented Reality has come a long way since its inception as a multimedia system during the last few decades. From the concept of an Augmented Reality experience to actual smartphone applications, it has come a long way. Researchers have chosen to leverage the concept of engagement in the construction of Mobile Augmented Reality applications in order to boost museum visitors' engagement and provide a more effective learning environment. The majority of Mobile Augmented Reality applications, on the other hand, were designed with normal hearing visitors in mind, while hearing-impaired visitors are given less attention. Those with hearing difficulties have an unfavourable experience as a result of this, and are unsatisfied with their visit. The elements of Mobile Augmented Reality aimed at engaging hearing-impaired museum visitors are determined in this study. The next step was to construct a conceptual model, which was then validated through an expert review. In investigating any flaws of the instrument among hearing-impaired museum visitors, a pilot study was conducted to improve the items and determine their level of reliability. Participants in the study were hearing-impaired who visited one of Iraq's ancient museums. This study will focus on evaluating the prototype to see how effective it is at engaging hearing-impaired museum visitors in the near future.
Use QR Code and IoT Mobile Devices to Prevent the Spread of an Epidemic (COVID-19)
Authors: Radhi Ahmed A. 
Published: June 2022

The spread of new pandemic novel Corona-Virus (COVID-19) brought violent changes in livelihood. It was difficult to control and cause Curfew in many countries, disrupted life, Imposing conditions for social distancing, masks because of unavailable of drugs, and treatments. The aim of this paper is using QR code and IoT for prevention transmission of COVID-19 by making electronic medical register for each human stored in cloud database included periodic Corona-Virus test and generate unique QR code for each one on the other side two software applications designed one for monitoring and update information of the medical register in the cloud and the second software read QR code and control the gates of public locations via IoT, as the results only healthy people can travel among public locations (markets, malls, Universities, Subways,…etc) and the infected persons can be monitored.
ASSESSING LEED CORE AND SHELL (LEED–C-AND-S), V3 AND V4, OF GOLD OFFICE-TYPE PROJECTS: THE DIFFERENCE BETWEEN FINLAND AND SPAIN
Authors: Pushkar Svetlana 
Published: June 2022

ABSTRACTThis study aims to compare the strategies that Finland and Spain have taken in order to get the Gold license from the Leadership in Energy and Environmental Design (LEED) Core and Shell (LEED–C-and-S) rating system. LEED–C-and-S version 3 (v3) and version 4 (v4) were considered. The absolute effect size is used to evaluate the performance of the LEED–C-and-S points. To assess the difference between Finland and Spain, we use the natural logarithm of the odds ratio and Fisher’s exact 2 × 2 test with Lancaster’s mid-p-value when analyzing the dichotomous data, and Cliff’s &delta; and the exact Wilcoxon–Mann–Whitney tests when analyzing ordinal data. As a result, in order to achieve the Gold level in LEED–C-and-S office-type projects, Finland and Spain demonstrated similarities and differences in credit values in v3 and v4. In v4 (latest version), the similarly high credits were location and transportation (LT) and water efficiency (WE) and similarly low credits were material and resource (MR) and environmental quality (EQ); different credit values were in the energy and atmosphere (EA) category, in which Finland outperformed Spain, and the sustainable sites (SS) strategy category, in which Spain outperformed Finland. Thus, Finland used the LT-WE-EA strategy, whereas Spain used the LT-WE-SS strategy. Knowing these strategies can be helpful in better understanding green building development in these countries.
DIFFERENCES IN PERCEPTION OF DAYLIGHTING SUFFICIENCY RELATED TO THE GEOGRAPHICAL LOCATION IN THE CONTEXT OF UNIVERSITY CLASSROOMS
Authors: Arango-Díaz Lucas , Hernandez Y. Andrea , Gallego Hector W. , Piderit-Moreno M. Beatriz 
Published: June 2022

ABSTRACT
The proper consideration of daylight in indoor environments refers to guaranteeing sufficient light levels while minimizing the risks of glare. Currently, The International Organization Standardization-ISO and the International Commission on Illumination-CIE establish that, for classrooms, the proper lighting level oscillates between 300–500 lx. Despite this, there is evidence of differences in the daylighting levels perceived as sufficient. The objective of this article is to identify and to explain the differences in perception of daylighting sufficiency to perform typical reading and writing activities in four cities in Colombia with latitudes that oscillate between 3°25’18”N to 6°15’7”N: Armenia, Cali, Medellin and Manizales. A methodology that included the application of surveys to university students in classrooms was outlined; at the same time workplane illuminance was measured in the workstations and vertical illuminance at the height of the eyes of people. The results showed differences between cities in the proportion of people who perceive certain daylighting level as sufficiently illuminated. A logistic regression model showed that those differences can be explained from the global solar radiation of each city.
LEARNING BUILDING PERFORMANCE SIMULATION AS NOVICE USERS IN ARCHITECTURAL DESIGN
Authors: Jo Soo Jeong , Grant Elizabeth 
Published: June 2022

ABSTRACTThe present study aims to explore students’ attitudes towards learning Building Performance Simulation (BPS) as novice users in architectural design programs and to discuss how BPS tools for the early stages of design can better respond to users’ demands. To achieve these goals, a BPS platform developed for the early stages of design, Sefaira, was taught to the junior students enrolled in an architectural design program. After learning the tool, the students were invited to an online survey asking about their experiences of learning the tool, and a total of 52 students voluntarily participated in the survey. Although learning the software was challenging and had limitations, the respondents found that learning BPS was helpful for developing and testing their design ideas.
REUSING “XIA BO” KILN FURNITURE WASTE FROM THE CERAMIC INDUSTRY AS A BUILDING MATERIAL AND ANALYZING ITS EFFECT ON THE INDOOR THERMAL ENVIRONMENT
Authors: Juan Zhang , Xuhuai Dong , Runqi Wu 
Published: June 2022

ABSTRACT
“Xia Bo” is a type of kiln furniture for ceramic production that becomes solid waste after damage during the firing process. However, it has traditionally been reused as a building material in China’s kiln-producing areas. With technological changes in kilns in recent years, Xia Bo is no longer necessary as kiln furniture for firing ceramics. However, as a low-tech and ecologically friendly construction material, it is overlooked as a suitable material. Traditional Xia Bo wall buildings are increasingly being left unused or even destroyed. This study examined the town of Pengcheng in the Cizhou kiln cultural heritage area. The main features and shapes of Xia Bo used in existing buildings were analyzed, and the typical application mode and construction technology for the “horizontal placement method” and the “vertical placement method” of the Xia Bo used in building walls were summarized. The thermal insulation performance of different types of Xia Bo wall was also examined, especially their thermal performance was compared with that of traditional brick wall buildings in indoor thermal environments. This study emphasizes and recognizes the ecological and economic value of reusing ceramic industrial waste as building materials to ensure that this technology can be protected and adopted in contemporary architecture.
A SUSTAINABLE DESIGN FOR BUILDINGS AGAINST EARTHQUAKES
Authors: Hahn G. D. 
Published: June 2022

ABSTRACT
A system for isolating buildings and potentially other structures to protect them against the effects of earthquakes is presented and discussed. This isolation system relies on an assembly of slender steel members vertically placed between the ground and the building base. It is intended to carry the vertical loading of the building while undergoing significant lateral deflections to absorb dominant horizontal ground motions produced by earthquakes. Discussions are presented that facilitate the understanding of the structural behavior of the system and its ability to protect buildings against seismic/earthquake activity. The isolation system contributes to sustainability in design by safeguarding human health while preserving natural resources that would otherwise be needed to repair or replace a potentially damaged structure built without such isolation. The assembly of the proposed system requires no specialized methodologies, and the system itself does not involve some non-environmentallyfriendly materials or fabrication processes that typically characterize the production of currently available base isolation systems. This adds to the attractiveness of the proposed system as a practical, innovative option that can contribute to sustainability in design. Merits of the system are further discussed in this paper and demonstrated by using examples representative of actual conditions for building applications.