bluuebunny/crossref_metadata_2025_split huggingface dataset:
Acoustic analysis and identification of smart solutions for the acoustic insulation of a large historical building
Authors: Busa Lucia , Luzzi Sergio , Colucci Gianfrancesco , Bartalucci Chiara 
Published: November 2020

Abstract
The object of the present paper is the acoustic study of Palazzo Borghese, one of the most important buildings of the neoclassical period present in Florence, which occupies the entire block between Via Ghibellina and Via dei Pandolfini. The Palace has been interested by various architectural interventions occurred in different historical periods. In 1437 a series of grandiose works of unification, enlargement and modernization were undertaken by Michelozzo who created a grand palace with a large open loggia much admired at the time. In 1709 a large, still existing, ballroom was built with a stage for the orchestra. The last major renovation was carried out at the beginning of the nineteenth century by Camillo Borghese: on the first floor, the monumental rooms, above all the main hall and the hall of mirrors, stand out for their magnificence, with a great profusion of gilded stuccoes, marble statues, columns, carved chandeliers, paintings.
Currently some areas of the building are used for receptions, conferences and events, while others are part of a receptive structure, residences and offices. The contiguity of spaces, characterized by very different acoustic requirements and by the presence of three very silent internal courtyards on which these spaces overlook, led to the emergence of numerous acoustic problems whose solution is made particularly delicate by the historical-artistic constraints present on the building. In order to identify the acoustic criticalities, several campaigns of acoustic measurements have been carried out, both during the reception activities and through the use of a sample source.
This investigation allowed to determine the structural weaknesses of the building and to identify the most appropriate technical and smart interventions compatible with the structural constraints and historical-artistic protection of the property.
Validation processes of H-BIM models: a case study
Authors: Biagini Carlo , Ottobri Paolo , Banti Neri , Bongini Andrea 
Published: November 2020

Abstract
BIM is becoming one of the main methodology in the field of the cultural heritage, to create digital models, aiming to take place of the real historic buildings for investigation, analysis and simulations. However it is still an open problem the validation of H-BIM models, to ensure reliability of the archived information. In fact there are two main aspects to achieving an H-BIM model: the first relates to the process of converting geometric data captured from survey into parametric elements and their semantic modelling; the second one relates to the definition of BIM use that will heavily influence the same modelling stage. The paper deals with a methodology of survey data modelling and model validation, highlighting the need to create a database, containing geometric data and information, in order to ensure reliability and usability over time. It is presented the case study of “Morgana Fairy” fount, built by Bernardo Vecchietti in 1573 and adorned with Gianbologna’s sculptures at Bagno a Ripoli in Florence. The model has been validated by a geometric comparing analysis of the deviation between the model itself and the mesh obtained with the acquired point cloud data.
Influence of marine corrosion on the roughness of the dry hyperbaric underwater MAG welding joints
Authors: Gheonea M C , Florescu S N , Mihailescu D , Teodor V 
Published: November 2020

Abstract
The maintenance and repairing actions for underwater metallic structures from maritime and offshore field are usually achieved using the gas metal arc welding processes. The welding processes applied should take into consideration different underwater conditions, and experiments should be conducted for different pressures. In the first part of the study, the authors focused on the investigation of the EH 36 shipbuilding steel behaviour subjected to dry hyperbaric metal active gas (MAG) using semi-automatic welding devices. Hereinafter, the authors analyse, by using the electrochemical method, the behaviour of the welded joints to marine corrosion. In the last part of the investigation, the corrosion influence on the roughness of the specimen’s surfaces, depending on the potentiodynamic polarization curves, is approached. The experiments revealed that increasing of pressure conditions leads to an increased corrosion resistance and moreover, to a decrease of the specimen surfaces roughness.
Structural identification of the bearing manufacturing process – Case-study
Authors: Afteni C , Frumusanu G R , Afteni M , Paunoiu V 
Published: November 2020

Abstract
In the manufacturing industry, globalization, shorter life cycles of products and changing customer needs, leads to high competitive pressure on companies. In addition to product quality and variety, flexibility, shorter processing times, and high-level compliance with delivery times have become essential factors for market success through efficient, efficacious and continually manufacturing processes optimization. To be successful in a highly competitive global production environment, a company must be able to deliver products that customers request at the requested time. In this paper is developed a novel method of structural identification of the bearing manufacturing process. This method allows the structuring of its activities, at all levels involved (order acceptance, production planning, product design, processes planning, and product processing), by elaborating the tree of the specific activities. The relations between the manufacturing process stages and related information circuit are revealed and the identification of the manufacturing process variants, at the level of each manufacturing activity is performed. Following the selection of the best alternatives from each level of the manufacturing activity, the optimal technological path is obtained for taking over an order for the bearing manufacture.
Tool-holder working unit used for robot-based incremental sheet forming
Authors: Barsan A , Crenganis M , Marosan A I , Chicea A L 
Published: November 2020

Abstract
The diversity of industrial robot applications is constantly growing, and their use in manufacturing processes is increasing year by year. One of the most flexible sheet metal forming process, used mainly for rapid prototyping or small series production, is represented by the single point incremental forming (SPIF). Usually, incremental sheet forming processes are performed by means of CNC milling machines or industrial robots, both having advantages and disadvantages. Due to the superior number of axes, especially when compared with 3-axis CNC milling machines, one of the most obvious advantage of the industrial robots rely upon their superior kinematic. The approach of this paper tackles the problem of designing a tool-holder working unit for SPIF process performed through a KUKA KR 210-2 industrial robot. After designing of the working unit, and simulating the tool path, the generated program code was used afterwards to successfully control the robot to obtain a truncated cone-shape part.
PLM as a sequential round of the technological revolution
Authors: Gromova E A 
Published: November 2020

Abstract
The fourth industrial revolution is actively developing in the world. Since 2011 it has become widespread. Affecting all areas of life activity, economy, which manifests itself in the qualitative reorganization of its mechanisms, creates new adapted management models, changes the nature of production processes. The digital revolution opens up new opportunities for using digital networks, agile production systems, and new business models for all stages of production. The faster the company makes this transition, the better its chances of succeeding and outperforming its competitors. Product lifecycle management (PLM) refers to the management of data and processes used in the design, engineering, manufacturing, sales, and service of a product across its entire lifecycle. The introduction of digital technologies occurs at all stages of the product lifecycle: product development, technology development, preparation and launch of production, product production, its operation and maintenance. PLM affects the ideology of creating a new product: to reduce the time to market and save resources, the system pushes to shift the labor intensity from the “production” stage to the “design” stage. The purpose of this study is to analyze product lifecycle management in agile management and to relate it to the current state of the Russian industrial development. Theoretical and practical aspects of this concept are given. The example of PLM implementation in the Russian industrial sector is presented. The Kalashnikov concern has built a product lifecycle management system. Today, the development of production of an industrial enterprise is impossible without a clear understanding of all stages of life cycle management of the product that it produces. Summarizing, PLM is offered as a promising concept for Russian economy.
High-efficiency reconstruction of ghost imaging based on equivalent deformation of 2D Walsh transform
Authors: Ma Haiyu , Sang Aijun , Zhou Cheng , An Xiaofeng , Zhao Xiwei , Song Lijun 
Published: November 2020

Abstract
As a high-quality imaging scheme, the sampling and reconstruction of 1D Walsh transform ghost imaging is mathematically equivalent to 1D Walsh transform, i.e. single matrix multiplication. It is widely acknowledged that compared with the 1D Walsh transform, the 2D Walsh transform is advantageous in terms of simpler calculation and stronger energy concentration. However, the 2D Walsh transform cannot adapt well to 1D imaging systems because it requires matrix multiplication to be carried out twice. To address this problem, we employ the ‘most natural’ Walsh order basis patterns to obtain the bucket detection value, so that the effect of the 1D sampling process is the same as that in the 2D Walsh transform. Based on this relationship of equivalence, this scheme can recover the image accurately. Numerical simulations and experimental results demonstrate that 2D Walsh transform ghost imaging is capable of reconstructing a sharp image with fewer coefficients. Moreover, we propose a fast algorithm for the 2D Walsh transform, which is proven to require less reconstruction time than the 1D fast Walsh transform. We are committed to building an efficient imaging system that can save as much time as possible in both sampling and reconstruction. From a practical point of view, a broader application may be found in real-time and low-resolution video imaging.
Thermal behavior and densification during selective laser melting of Mg-Y-Sm-Zn-Zr alloy: simulation and experiments
Authors: Wang Wenli , Wang Dan , He Lun , Liu Wenqiang , Yang Xin 
Published: November 2020

Abstract
The temperature field and flow field during the selective laser melting (SLM) process of Mg-3.4Y-3.6Sm-2.6Zn-0.8Zr alloy were simulated by using a re-developed Fluent 17.0 commercial finite volume method (FVM). The surface tension, Marangoni convection, and the laser heat source with Gaussian distribution are taken into account. The effects of laser power and scanning speed on the temperature and the size of the molten pool are studied, and the influence of line energy density (LED) on the flow and densification behavior of the molten pool is also discussed. It shows that the temperature and the size of the molten pool are positively correlated with the laser power, and negatively correlated with the scanning speed. The LED affects the flow of the molten pool and the movement of the bubbles, thereby affecting the densification behavior. For an optimized laser power of 50 W and scanning speed of 0.4 m s−1, the bubbles can escape smoothly, the existence time of the molten liquid is 355.58 μs and a molded part with the optimal density (95.98 ± 1.4)% is obtained. The experimental and numerical simulation results are in good agreement. It is concluded that a laser power of 50 W, and a scanning speed of 0.4 m s−1 are the optimal process parameters.
Revision as Relation: Adapting Parable in Chigozie Obioma’sThe Fishermen
Authors: Heinz Sarah 
Published: November 2020

AbstractThis essay explores the connection between adaptation and parable in Chigozie Obioma’s debut novel The Fishermen (2015). Obioma’s adaptation of parable revises this narrative form as radically relational. This revision of parable is tied to an equally relational understanding of adaptive processes. Using parable as the frame for its complex mixture of Igbo and Yoruba mythology, Biblical stories, and Greek and Roman myth, among others, enables the novel to reinterpret all these sources in the context of postcolonial Nigeria. This process thereby challenges the belief that we can dispel colonial power structures by simply rejecting canonical stories and their discursive frameworks and it suggests, instead, a notion of identity as relational and transient. Ultimately, the novel proposes an ethics of relationality that can help to re-assess processes of revision and their political and cultural impact.
Brain Predictability toolbox: a Python library for neuroimaging-based machine learning
Authors: Hahn Sage , Yuan De Kang , Thompson Wesley K , Owens Max , Allgaier Nicholas , Garavan Hugh 
Published: November 2020

Abstract

Summary
Brain Predictability toolbox (BPt) represents a unified framework of machine learning (ML) tools designed to work with both tabulated data (e.g. brain derived, psychiatric, behavioral and physiological variables) and neuroimaging specific data (e.g. brain volumes and surfaces). This package is suitable for investigating a wide range of different neuroimaging-based ML questions, in particular, those queried from large human datasets.

Availability and implementation
BPt has been developed as an open-source Python 3.6+ package hosted at https://github.com/sahahn/BPt under MIT License, with documentation provided at https://bpt.readthedocs.io/en/latest/, and continues to be actively developed. The project can be downloaded through the github link provided. A web GUI interface based on the same code is currently under development and can be set up through docker with instructions at https://github.com/sahahn/BPt_app.
pdm_utils: a SEA-PHAGES MySQL phage database management toolkit
Authors: Mavrich Travis N , Gauthier Christian , Abad Lawrence , Bowman Charles A , Cresawn Steven G , Hatfull Graham F 
Published: November 2020

Abstract

Summary
Bacteriophages (phages) are incredibly abundant and genetically diverse. The volume of phage genomics data is rapidly increasing, driven in part by the SEA-PHAGES program, which isolates, sequences and manually annotates hundreds of phage genomes each year. With an ever-expanding genomics dataset, there are many opportunities for generating new biological insights through comparative genomic and bioinformatic analyses. As a result, there is a growing need to be able to store, update, explore and analyze phage genomics data. The package pdm_utils provides a collection of tools for MySQL phage database management designed to meet specific needs in the SEA-PHAGES program and phage genomics generally.

Availability and implementation
https://pypi.org/project/pdm-utils/.
Casboundary: automated definition of integral Cas cassettes
Authors: Padilha Victor A , Alkhnbashi Omer S , Tran Van Dinh , Shah Shiraz A , Carvalho André C P L F , Backofen Rolf 
Published: November 2020

Abstract

Motivation
CRISPR-Cas are important systems found in most archaeal and many bacterial genomes, providing adaptive immunity against mobile genetic elements in prokaryotes. The CRISPR-Cas systems are encoded by a set of consecutive cas genes, here termed cassette. The identification of cassette boundaries is key for finding cassettes in CRISPR research field. This is often carried out by using Hidden Markov Models and manual annotation. In this article, we propose the first method able to automatically define the cassette boundaries. In addition, we present a Cas-type predictive model used by the method to assign each gene located in the region defined by a cassette’s boundaries a Cas label from a set of pre-defined Cas types. Furthermore, the proposed method can detect potentially new cas genes and decompose a cassette into its modules.

Results
We evaluate the predictive performance of our proposed method on data collected from the two most recent CRISPR classification studies. In our experiments, we obtain an average similarity of 0.86 between the predicted and expected cassettes. Besides, we achieve F-scores above 0.9 for the classification of cas genes of known types and 0.73 for the unknown ones. Finally, we conduct two additional study cases, where we investigate the occurrence of potentially new cas genes and the occurrence of module exchange between different genomes.

Availability and implementation
https://github.com/BackofenLab/Casboundary.

Supplementary information
Supplementary data are available at Bioinformatics online.
Population differentiation and phylogeography inLycianthes moziniana(Solanaceae: Capsiceae), a perennial herb endemic to the Mexican Transition Zone
Authors: Anguiano-Constante Marco Antonio , Zamora-Tavares Pilar , Ruiz-Sanchez Eduardo , Dean Ellen , Rodríguez Aarón , Munguía-Lino Guadalupe 
Published: November 2020

AbstractLycianthes moziniana (Solanaceae: Capsiceae) is a perennial herb with edible fruits that is endemic to Mexico. Three varieties are recognized, all known in the Mexican Transition Zone. Lycianthes moziniana var. margaretiana grows in the Sierra Madre Oriental, whereas L. moziniana var. moziniana is common along the Trans-Mexican Volcanic Belt and in the Sierra Madre Occidental. Lycianthes moziniana var. oaxacana is found exclusively in the Sierra Madre del Sur. The Mexican Transition Zone is a complex geological, climatic and biogeographical area, the result of tectonic and volcanic activity that has promoted genetic divergence and speciation. We determined the genetic variation and structure of L. moziniana. Using phylogeographical approaches, we described the demographic history and evolutionary processes leading its divergence. The intergenic spacers rpl32-trnL and ycf1 were sequenced for 133 individuals pertaining to 15 populations. The genealogical relationships were analysed using haplotype networks. Finally, based on ecological niche models, we inferred the palaeodistribution of L. moziniana during the Pleistocene. The genetic differences and the haplogroups matched the three described varieties. Geological and climatic events of the Mexican Transition Zone facilitated these results. The Trans-Mexican Volcanic Belt isolated the populations of the Sierra Madre Oriental and the Sierra Madre del Sur, while allowing the migration to the Sierra Madre Occidental, during the middle Holocene.
Geographical and environmental contributions to genomic divergence in mangrove forests
Authors: Da Silva Michele Fernandes , Cruz Mariana Vargas , Vidal Júnior João De Deus , Zucchi Maria Imaculada , Mori Gustavo Maruyama , De Souza Anete Pereira 
Published: November 2020

AbstractAssessing the relative importance of geographical and environmental factors to the spatial distribution of genetic variation can provide information about the processes that maintain genetic variation in natural populations. With a globally wide but very restricted habitat distribution, mangrove trees are a useful model for studies aiming to understand the contributions of these factors. Mangroves occur along the continent–ocean interface of tropical and subtropical latitudes, regions considered inhospitable to many other types of plants. Here, we used landscape genomics approaches to investigate the relative contributions of geographical and environmental variables to the genetic variation of two black mangrove species, Avicennia schaueriana and Avicennia germinans, along the South American coast. Using single nucleotide polymorphisms, our results revealed an important role of ocean currents and geographical distance in the gene flow of A. schaueriana and an isolation-by-environment pattern in the organization of the genetic diversity of A. germinans. Additionally, for A. germinans, we observed significant correlations between genetic variation with evidence of selection and the influence of precipitation regimens, solar radiation and temperature patterns. These discoveries expand our knowledge about the evolution of mangrove trees and provide important information to predict future responses of coastal species to the expected global changes during this century.
Stepwise crosstalk between aberrant Nf1, Tp53 and Rb signalling pathways induces gliomagenesis in zebrafish
Authors: Luo Juanjuan , Liu Pei , Lu Chunjiao , Bian Wanping , Su Dongsheng , Zhu Chenchen , Xie Shaolin , Pan Yihang , Li Ningning , Cui Wei , Pei De-Sheng , Yang Xiaojun 
Published: November 2020

Abstract
The molecular pathogenesis of glioblastoma indicates that RTK/Ras/PI3K, RB and TP53 pathways are critical for human gliomagenesis. Here, several transgenic zebrafish lines with single or multiple deletions of nf1, tp53 and rb1 in astrocytes, were established to genetically induce gliomagenesis in zebrafish. In the mutant with a single deletion, we found only the nf1 mutation low-efficiently induced tumour incidence, suggesting that the Nf1 pathway is critical for the initiation of gliomagenesis in zebrafish. Combination of mutations, nf1;tp53 and rb1;tp53 combined knockout fish, showed much higher tumour incidences, high-grade histology, increased invasiveness, and shortened survival time. Further bioinformatics analyses demonstrated the alterations in RTK/Ras/PI3K, cell cycle, and focal adhesion pathways, induced by abrogated nf1, tp53, or rb1, were probably the critical stepwise biological events for the initiation and development of gliomagenesis in zebrafish. Gene expression profiling and histological analyses showed the tumours derived from zebrafish have significant similarities to the subgroups of human gliomas. Furthermore, temozolomide treatment effectively suppressed gliomagenesis in these glioma zebrafish models, and the histological responses in temozolomide-treated zebrafish were similar to those observed in clinically treated glioma patients. Thus, our findings will offer a potential tool for genetically investigating gliomagenesis and screening potential targeted anti-tumour compounds for glioma treatment.