bluuebunny/crossref_metadata_2025_split huggingface dataset:
Determination of transformer board creep parameters under high‐mechanical and thermal stresses
Authors: Arabul Ahmet Yigit , Kumru Celal Fadil , Keskin Arabul Fatma 
Published: December 2020

AbstractDuring operation of a transformer, all components inside the transformer begin to age and lose their performances due to various stresses. Among these components, transformer boards (TB) used between windings have an important role in terms of equipment reliability for being used for both insulation and cooling purposes. TBs are exposed to all sorts of specified stresses during operation and their physical structure deteriorates by creeping over time. This deterioration leads to a decrease in the gap between winding turns, and insulation failures occur due to insufficient cooling. In order to prevent these types of failures, it is quite important to specify creep characteristics of TBs before the production particularly for high‐mechanical and thermal stresses. In this study, creep parameters (secondary creep rate, time to breakdown) of TB samples used in a typical power transformer under various loading and temperature are determined experimentally. In addition, gradient values are calculated for fitted lines and results obtained evaluated in terms of transformer operating conditions. Creep data obtained under high temperature (90, 100 and 110°C) and loading (30, 35 and 40 kg) makes an important contribution to literature and will help transformer manufacturers in design and production stages.
Evidence for chromium hydride in the atmosphere of hot Jupiter WASP-31b
Authors: Braam Marrick , van der Tak Floris F. S. , Chubb Katy L. , Min Michiel 
Published: December 2020

Context.The characterisation of exoplanet atmospheres has shown a wide diversity of compositions. Hot Jupiters have the appropriate temperatures to host metallic compounds, which should be detectable through transmission spectroscopy.Aims.We aim to detect exotic species in the transmission spectra of hot Jupiters, specifically WASP-31b, by testing a variety of chemical species to explain the spectrum.Methods.We conduct a re-analysis of publicly available transmission data of WASP-31b using the Bayesian retrieval framework TAUREXII. We retrieve various combinations of the opacities of 25 atomic and molecular species to determine the minimum set that is needed to fit the observed spectrum.Results.We report evidence for the spectroscopic signatures of chromium hydride (CrH), H2O, and K in WASP-31b. Compared to a flat model without any signatures, a CrH-only model is preferred with a statistical significance of ~3.9σ. A model consisting of both CrH and H2O is found with ~2.6 and ~3σconfidence over a CrH-only model and an H2O-only model, respectively. Furthermore, weak evidence for the addition of K is found at ~2.2σover the H2O+CrH model, although the fidelity of the data point associated with this signature was questioned in earlier studies. Finally, the inclusion of collision-induced absorption and a Rayleigh scattering slope (indicating the presence of aerosols) is found with ~3.5σconfidence over the flat model. This analysis presents the first evidence for signatures of CrH in a hot Jupiter atmosphere. At a retrieved temperature of 1481−355+264K, the atmosphere of WASP-31b is hot enough to host gaseous Cr-bearing species, and the retrieved abundances agree well with predictions from thermal equilibrium chemistry. Furthermore, the retrieved abundance of CrH agrees with the abundance in an L-type brown dwarf atmosphere. However, additional retrievals using VLT FORS2 data lead to a non-detection of CrH. Future observations withJames WebbSpace Telescope have the potential to confirm the detection and/or discover other CrH features.
Conflicts and the spread of plagues in pre-industrial Europe
Authors: Kaniewski David , Marriner Nick 
Published: December 2020

AbstractOne of the most devastating environmental consequences of war is the disruption of peacetime human–microbe relationships, leading to outbreaks of infectious diseases. Indirectly, conflicts also have severe health consequences due to population displacements, with a heightened risk of disease transmission. While previous research suggests that conflicts may have accentuated historical epidemics, this relationship has never been quantified. Here, we use annually resolved data to probe the link between climate, human behavior (i.e. conflicts), and the spread of plague epidemics in pre-industrial Europe (AD 1347–1840). We find that AD 1450–1670 was a particularly violent period of Europe’s history, characterized by a mean twofold increase in conflicts. This period was concurrent with steep upsurges in plague outbreaks. Cooler climate conditions during the Little Ice Age further weakened afflicted groups, making European populations less resistant to pathogens, through malnutrition and deteriorating living/sanitary conditions. Our analysis demonstrates that warfare provided a backdrop for significant microbial opportunity in pre-industrial Europe.
The body center stage
Authors: Montesi Vanessa 
Published: December 2020

Abstract
This article examines Marie Chouinard’s choreography Jérôme Bosch: Le Jardin des délices (2016) as an
intermedial translation of Bosch’s homonymous painting. Taking the concepts of distribution of the sensible and esthetic regime developed by
Rancière (2004) as groundwork, I consider how dance and translation participate in the
political by challenging traditional hierarchal author–translator relationships, by introducing new corporealities and discourses in the
realm of the visible and by exploiting the slippage of meaning that can be produced in the reiteration of discourse and citationality that
characterize these two disciplines. I conclude by arguing that in engaging with these three lines of thought, Jérôme Bosch: Le
Jardin des délices offers a model of translation as an embodied and situated practice that combines the esthetic and the
political by bringing a dialogue between equally participating subjects to bear upon a specific context.
Mössbauer and differential thermal analysis studies of iron alkali lead-phosphate glasses
Authors: El-Denglawey A , Saddeek Yasser B , El-Bahnasawy H H , Aly K , Dahshan A , Amer T Z , Showahy A A , Shaaban Kh S 
Published: December 2020

Abstract
This work reports on the effect of the increment of Fe2O3 in a network of phosphate glasses involving Al2O3, Na2O and PbO by DTA and Mössbauer techniques. The analysis of Mössbauer suggests oxidation of Fe2+ ions in the distorted bipyramidal to Fe3+ in the same site. This procedure creates non-bridging oxygens joined with Fe2+
octa that weakens the phosphate network whenever the Fe2O3 content increases. The thermal parameters of the phosphate network will be affected by this weakness. Thus, both the glass transition temperature (T

gl
) and the crystallization peak temperature (T

cp
) on the one hand and the activation energies for glass transition E

gl
and for crystallization (E

gl
and E

cp
) on the other hand will decrease as a function of Fe2O3. This decrease will be discussed following Lasocka’s relationships that present a good correlation between T

gl
and T

cp
. Furthermore, the glass transition temperature (T

gl
) was correlated with the glass fragility (m) and with the elastic parameters of the phosphate network such as the bulk (K) and shearing (G) moduli.
Evaluation of biocompatibility and osseointegration of Nb–xTi–Zr alloys for use as dental implant materials
Authors: Ou Pinghua , Hao Cong , Liu Jue , Yang Hailin , He Rengui , Zhang Taomei , Wang Yali , Ruan Jianming 
Published: December 2020

Abstract
The aim of this study was to evaluate the biocompatibility and osteogenic potential of 50%Nb–xTi–Zr (NTZ, x = 20%, 30%, 40% by weight) alloys as compared with dental commercial pure titanium (cpTi). Cell cytotoxicity assay, fluorescence microscopy and electron microscopy were used to measure the in vitro biocompatibility of NTZ. The expression of alkaline phosphatase (ALP), integrin β1, osteocalcin (OC), Ki67 and collagen-I (Col-I) at the mRNA level was measured by real-time reverse transcription-polymerase chain reaction. Osseointegration ability was determined using x-ray evaluation and histological analysis in vivo. Compared with the MG63 cells grown on cpTi on day 3, the viability, adherence and proliferation rates of cells cultured on NTZ alloys were significantly improved (p < 0.05). Furthermore, similar expression levels of Ki67, Col-I, OC and ALP were found in the MG63 cells grown on NTZ alloys and those grown on cpTi. The Cbfα1 level was significantly higher for the 50%Nb–30%Ti–Zr (NTZ3) than for the cpTi group on day 6 (p < 0.01), indicating that NTZ alloys can induce osteogenesis. A considerable amount of new bone formation and osseointegration was observed around NTZ3 implants compared with cpTi implants in vivo. Collectively, NTZ3 showed superior biocompatibility and osteogenic activity; therefore, NTZ3 may be an excellent replacement for dental Ti implants.
World Multidisciplinary Civil Engineering-Architecture-Urban Planning Symposium - WMCAUS 2020
Authors: Yilmaz Isik , Marschalko Marian , Drusa Marian 
Published: December 2020

This volume of “IOP Conference Series: Material Science and Engineering” contains the papers presented in the 5th Anniversary of “World Multidisciplinary Civil Engineering-Architecture-Urban Planning Symposium” in Prague (Czech Republic) during 1-5 September 2020. The aim of the WMCAUS 2020 is to provide a forum for discussion of the latest findings and technologies in different fields of Civil Engineering, Architecture and Urban Planning, to give opportunities for future collaborations. It is a platform for sharing knowledge and experiences in the fields of Civil Engineering, Architecture and Urban Planning by providing a forum for early career researchers for presentation of their work and discussion of their ideas with experts in different fields of Civil Engineering, Architecture and City and Urban Planning.
However, the planned period of WMCAUS 2020 was 15-19 June 2020, it was postponed to 1-5 September 2020 because of the Covid-19 pandemic, and held in Prague (Czech Republic) by appearing in person of the participants, not on-line format.
All the missions of World Multidisciplinary Civil Engineering-Architecture-Urban Planning Symposium – WMCAUS 2020 were completed, and 342 peer reviewed articles were published. We would like to thank all reviewers for their great effort to achieve the high quality of published articles.
We would like to show our deep gratitude to the honored Scientific Committee and Institutional Scientific Partners of WMCAUS. The Scientific Committee and Institutional Scientific Partners of WMCAUS was completed by paying strict attention, and all members were selected from well-known, very much appreciated, productive and representatives of the different countries.
We thank to the sponsors of WMCAUS 2020 (as main sponsors LAMA Energy Group, LAMA Gas and Oil, and to be co-sponsor Prague City Tourism) for their very much appreciated supports during the organization of “World Multidisciplinary Civil Engineering-Architecture-Urban Planning Symposium – WMCAUS 2020”. Of course, we would like to express my sincere gratitude to all participants with more than 500 submissions from more than 50 different countries all over the world for their interests and contributions in the 5th Anniversary WMCAUS 2020. Another thank goes to the team of WMCAUS for their very much appreciated high workload during year.
We hope to see the participants of WMCAUS 2020 once again in 6th WMCAUS 2021 that will be held in Prague (Czech Republic).
Designing Brand Experience in Interior Space
Authors: Onem Meltem , Hasirci Deniz 
Published: December 2020

Abstract
With fast globalization, comes competitive marketing and brands have begun to use experiential design as a marketing strategy. Experiencing spaces creates a signification in people’s lives, and spaces can have a particular role in originating specialized experiences. Therefore, there is a key role for interior designers, because they design experience through space. Understanding how to design a perceived space for the purpose of brand strategy becomes significant at this point. The research aspires to analyze the role of interior space in experiencing corporate identity. Moreover, it explores how interior space is being shaped by firms who are designing the corporate identity with all design elements together, from graphic design for the logo, to the software design for the website, to interior design for the design of the corporate space. Integrating interior space within the development of corporate identity is a new and effective approach in understanding the experience of the corporate identity. Schmitt’s [1] Experiential Marketing model is used to analyze the works of the design companythat uses this approach. The model is adapted to the field of interior design to provide a link with marketing and to eliminate deficiencies between professional life and the existing literature.
A Methodology for Optimal Design and Simulation of Deployable Structures
Authors: Ama Fernando Del , Molina Mariano , Isabel Castilla M. , Pulido Dolores Gomez , Lorenzo Covadonga , Millan Juan Garcia , Sancho Juan C. 
Published: December 2020

Abstract
Deployable structures with bars have been used in different technological fields since the beginning of the 20th century. It was as of 1930 when their use in construction became widespread, especially in roofs with large spans. The research group at San Pablo University in Madrid, along with Keene State College has developed a new type of deployable structure that minimizes the weight and maximizes the span. The structural efficiency is based on the fact that the tensioned elements of the modules are made of cables. In addition to contributing to the overall stiffness and strength of the structure, these cables are designed to guide the folding and unfolding process of the structure. In each module the tension cable is extended until it is connected to the midpoint of the compression bar, thus regulating its position and avoiding the possibility of unforeseen folding while the structure is fully deployed. This article shows a method to optimize the geometry and to test the static behavior of the structure.
Manufacture and Assembly Mechanism of Dougong
Authors: Haiyan Dai , Hong Zhang , Bin Meng 
Published: December 2020

Abstract
Dougong [斗栱] is a bracket between column, beam, and rafter in traditional timber structure building in China. It has several bearing blocks, named dou [斗], and some bracket arms, named gong [栱]. All components are connected by sunmao [榫卯]. It was born from the capital and later developed into a bracket that does not have to be related to the column. During the last 3000 years, its status in traditional architecture has been rising. In the Qing Dynasty, the architectural design work started it as the core. The chief aim of this research is to explore the possibility and key issues of using dougong for the prefabricated buildings. This research documents a folk building project in China from three aspects: the construction organization, the dougong component manufacture and assembly. After that, we study the mechanism and analyze the traditional technology. Finally, the study provides some suggestions for the prefabricated building. The first aspect is the construction organization. The component manufacture team needs more specialized skills than the assembly team. The two teams exchange information through the code on components and simple language. The proportion of dougong manufacture workload on the standard floor is 40%. The second aspect is the dougong component manufacture. A master carpenter, a chief engineer, is in charge of three tasks: architectural design, material requirements planning, and templates making. After that, he directed 4 carpenters to make components accorded with the templates. The dougong components are universal. Besides, carpenters assemble and code the completed gong components in layers in the carpentry yard. Each layer of gong uses 1 English capital letter to code. The other components are unassembled and uncoded. The third aspect is the dougong component assembly. The assembly team’s workers need only simple skills to complete their work. Limited by the low precision of the hand-made method, they need to fine-tune the size of the gong at the joint between the gong and the column. In this project, the lowest component of dougong is gong, so, the workers assemble 5 layers of gongs into the columns from bottom to top first, and then assemble several dous between the gongs. The completed sunmaos at this stage are not tightly fitted, which leaves room for adjustment of the upper components of the dougong. The research we have done indicates that compared with the assembly stage, the manufacturing stage is a concentrated section of the technology and workload. So, the key to modernizing traditional buildings is the modernization of this stage, especially the dougong manufacture. If it is realized, we can save at least 40% hand-made workload of the standard floor. At the same time, the components will achieve higher accuracy, which is beneficial to improve the assembly speed and quality. Also, in the future, BIM can be utilized based on the traditional design method, which is significant to the inheritance and improvement of dougong technology.
Investigating the Presence of National Capitals as Ranked Global Cities
Authors: Ghalib Hebatullah , Elkhorazaty Mohamed Tamer , Serag Yehya 
Published: December 2020

Abstract
Urban competitiveness has become an undeniable reality of our world. Cities around the world create strategies and development plans to enhance their competitiveness and reach worldwide fame and attraction for different segments. This competition has widened to reach different aspects of social, economic, physical and environmental aspects of cities. Along the years different methodologies and criteria were proposed to create a systematic assessment of cities worldwide and rank their competitiveness. The results of such assessments are published in indices; e.g. Global Power City Index, Global Power City Index, etc. Each index has its own set of indicators that cover different aspects of cities; e.g. economy, environment, accessibility. Sample cities from all over the world are graded and ranked accordingly. The cities that achieve top ranking in those global assessment lists are called global cities. This paper aims to investigate if being a national capital can be related to becoming a global city. This is through the study of two global city rankings; Global Power City Index (GPCI) and Global Cities Index (GCI), for three successive years; 2016, 2017, 2018. It is shown that around 50% of ranked cities are national capitals across both ranking system and over the three years covered in this research. European national capitals reach 66% of those featured, followed by Asian capitals with around 33%. The presence of capital cities is also evident in within each indicator of the Global Power City Index (GPCI). In general, evident presence can be linked to national capitals especially those of Europe and Asia.
Bases of Elements of Multi-Criteria Analysis of Quality of Design Decisions
Authors: Kazaryan Ruben 
Published: December 2020

Abstract
Economic and mathematical models are focused on obtaining optimal solutions to particular problems in the field of transport construction (formation of organizational structures, provision of materials for construction, creation of specialized units, development of production standards, development of work schedules, etc.). None of the considered methods can claim universality in substantiating decisions, since the decision-making process itself has a complex hierarchical structure: part of the decisions is made “at the highest level”, the other part of decisions is transferred to the “lower” levels. No governing body is capable of making all decisions. Therefore, economic and mathematical models can also be recommended both in the field of macroeconomics (to the highest level of transport construction management) and in the field of microeconomics (construction organizations, enterprises, production units). In this regard, it is important to correctly assess the “niche” of the construction management system, in which one or another model should have a place. Obviously, most of them can be recommended to organizations and enterprises of the “middle” and “lower” levels in which the technological processes of the construction of transport facilities are implemented, although their application at the highest level is also possible (for example, cluster analysis models, linear programming, network models, etc.).
Organization of Training in Construction Technological Processes Based On Digital Resources
Authors: Pugacheva Natalya , Badrutdinov Marat , Kashina Svetlana , Yarullina Lyaylya , Farah Reda , Kirillova Tatyana , Lunev Aleksandr 
Published: December 2020

Abstract
The purpose of research is to show the efficiency of the virtual construction site of a large-panel residential building as a digital resource of training on technological processes of construction. As the research methodology appeared the digital paradigm, providing the application of digital resources into construction education, the correlation between the best practice and quality changes based on smart technologies. The principal results of the research are maintenance of the virtual construction site of the residential building; criteria for efficiency of training construction operation processes on the basis of a virtual construction site; levels of student readiness for smart technology applications. The significance of the results is that the content of the virtual construction site allows to develop skills of planning and management of virtual projects The criteria reflect the need of the digital economy for construction engineers who master modern digital technologies. The levels of students’ readiness to apply smart technologies reflect the current situation in construction education.
A European Recommendation: The Agricultural Development of Dobrogea During the Communist Regime
Authors: Ileana Kisilewicz Maria , Luiza Varga 
Published: December 2020

Abstract
For almost half a century following the Romanian annexation of Dobrogea, after the Independence war of 1877-1878, there had been no serious interest on behalf of the country’s government with regards to the education of locals on the cultivation of the territory’s arid soil. Few farms (Hamangia, an agricultural farm, Murfatlar, a winery, and Palas, an animal farm) were insufficiently supported, while their research was aimed locally and never sought the development of the entire region. Thus, during the communist period, the cultivation of Dobrogea’s arid land became a recommendation for Romania on behalf of Europe.