bluuebunny/crossref_metadata_2025_split huggingface dataset:
Monthly precipitation field generation at Sulina (Romania)
Authors: Bărbulescu A 
Published: May 2022

Abstract
Nowadays, climate change is one of the most important threads for civilization. Having the origin mainly in the anthropic activity and intensive use of the environmental resources, climate change affects the ecosystems and the population lives. Changes in precipitation volume and cycles severely affect agriculture and food security. Therefore, building meteorological forecasting is important for planning agricultural works and water management. In this respect, this article attempts to create an image of the future precipitation evolution in the northern part of Dobrogea, a region more and more affected by extreme meteorological events - long drought periods, followed by high precipitation amounts.
Structural design of the radar station of “Besna Kobila” Serbia
Authors: Besevic M , Vojnic Purcar M , Kozaric L , Bursac S 
Published: May 2022

Abstract
The location of the new radar station facility is located at the top of the Besna Kobila mountain in Serbia at an altitude of approximately 1904 m. The construction of the building is reinforced concrete. The building consists of ground floor and first floor with technical and other areas. From the 2nd to the 6th floor there is a communication central reinforced concrete core. At the level of the 6th floor, a platform was formed for storing equipment and supporting the antenna dome with a diameter of R = 15. The total height of the building with a dome is H = 37.0 m. Horizontal floor structures are in the form of reinforced concrete slabs supported on reinforced concrete walls 20 (30) cm thick, columns of different dimensions, and a system of reinforced concrete beams of different cross section. The vertical construction consists of load-bearing reinforced concrete columns, external and internal concrete walls. In the central part of the building, there is a staircase in the form of reinforced concrete slabs with a thickness of d = 16 cm, as well as reinforced concrete elevator core with a square base of approximately 560.0 cm. The calculation of the structure is performed for loads from its own weight, constant loads from the materialization of the object, loads from the equipment and for payloads: from snow and wind and seismic loads of intensity IX. The basic load of the dome is the wind according to the average speed of 70.0 m / sec (according to the measured data). The foundation of the building is on a reinforced concrete slab and reinforcements-capitals under the columns.
Soil stabilisation with hydraulic binders
Authors: Chiorean A G , Vasile M D , Nagy A C , Hies N M 
Published: May 2022

Abstract
The lack of a good foundation ground layer in some areas that could be used for construction proposes is a common problem all over the world. Today, more and more researches are focused on finding new solutions to improve the soil parameters in order to obtain a stabilized foundation layer. Finding an optimal admixture between the local soils, needed for construction purposes, hydraulic binders and the precise amount of water, may be the future of a revolutionary discovery in this field. The experimental study based on the admixture of a sandy silty clay with hydraulic binders from the Viacalco© [1] range, produced by Carmeuse Romania, in a percentage of 2%, 4% and 6% led to a significant improvement of the geotechnical parameters of the soil. The aim of this experimental study is to determine the optimal binder mixture in order to improve local soils and to obtain low investment costs.
Separating function of timber floor and wall assemblies
Authors: Dârmon R 
Published: May 2022

Abstract
The basic concern on the fire compartmentation is focused on to limit the spread of the fire and smoke outside of the room of the fire origin. Where the fire compartmentation is required, the elements forming the boundaries of the fire compartment should be designed and constructed in such a way that they maintain their separating function during the relevant fire exposure [1]. The general accepted method for assessing the fire resistance of a structural or non-structural member is the full-scale testing of the fire performance, however, several calculation methods for verification of the separation function of timber assemblies can also be used in order to prove compliance with the code regulations [2].
The study on flexible manufacturing system in building decoration stone processing
Authors: Du F , Zhao M , Zhang P 
Published: May 2022

Abstract
Stone materials are widely used in interior and exterior decoration design and public facilities construction. They are one of the essential materials in the construction and decoration field. With the increase in demand of the personality and quality of the decoration materials, intelligent manufacturing of stone processing must be required. With the development of manufacturing technology, especially the rapid development of automatic control technology, CNC machining technology and industrial robot technology, flexible manufacturing technology (FMI) have been used. In the paper an intelligent flexible processing system of stone is designed, which is composed with CNC processing tool, material transmission and storage system, computer control system and stone processing process monitoring system. It can realize fully automatic and intelligent flexible production from building stone processing, stone handling, comprehensive waste treatment, tool optimization and computer control. The calculation method of optimal equipment layout is explained and the field layout of each unit of FMS is given. The purpose of this project is to improve the intelligent level of building decoration stone processing through flexible manufacturing technology and increase production efficiency and material utilization as well as to satisfy needs of diversified product.
Numerical case studies about two-dimensional SHS joints with symmetrical and asymmetrical top-connection
Authors: Heinemann P , Isopescu D N , Maxineasa S G 
Published: May 2022

Abstract
Hollow section steel profiles are widely used for industrial purpose. Next to circular hollow section, which are set to for example offshore constructions, squared hollow section profiles have many advantages. The profiles are lightweight, have got a high rotational stiffness and in contrast to circular profiles, squared profiles can be welded more easily without having multiplanar welding radii. The weakest point of columns with two or more members is the node. Due to the geometrical heterogeneity and the imperfection due to the process of welding it is a complex part to calculate.
This paper is about a numerical case study of a full-overlapped squared hollow section joint. A focus is the influence of the inclination angle on the maximum stresses and deflection in the ultimate limit state. The analysis is split into symmetrical and asymmetrical structures. The aim is to figure out the influence of the inclination angle on the stability of the joint.
Hempcrete - modern solutions for green buildings
Authors: Lupu M L , Isopescu D N , Baciu I-R , Maxineasa S G , Pruna L , Gheorghiu R 
Published: May 2022

Abstract
It is widely established that the building industry has a negative impact on the environment and a significant influence on the phenomena that contribute to climate change. Traditional construction materials, such as cement, contribute considerably to environmental pollution. Given the enormous quantity of energy and materials used by the construction sector, this industry must adopt more sustainable practices. Nowadays, an increasing number of natural building materials are used in the structural component or the insulation of buildings. As a result, natural construction materials may be a superior alternative to accomplish this goal. This article discusses the features and applications of hempcrete in the building industry. Hempcrete is a sustainable material composed of industrial hemp, lime as a binder, and water. Due to hemp’s porous structure, it has deformation capacity, sound-absorbing qualities, better hygrothermal properties than conventional concrete, and, depending on the proportions of hemp, lime, and water, fire resistant capabilities due to the presence of lime.
Studies on sliding stabilization solutions of a built site in a residential area
Authors: Măntulescu M , Tuns I 
Published: May 2022

Abstract
The paper presents a case study performed on a site for residential buildings, arranged by terracing on a sloping ground. The built site, subject to investigations, shows an obvious state of degradation downstream, manifested by the development of concentric cracks, penetrated deep, as a result of displacements/rotations produced in the massif of soil susceptible to sliding. The analyzed comparative solutions aim at achieving mechanical barriers developed in dep, taking the tensile efforts through reinforced soil works and improving the shear resistance of the soil.
Validation of elastic wave arrival detection method based on use of sparse matrix computation
Authors: Nakamura K , Kobayashi Y , Oda K , Shigemura S , Ikebata K 
Published: May 2022

AbstractIn the field of non-destructive investigations, the arrival time of the elastic waves is the important parameters to visualize the locations of the failures and/or elastic wave velocity distributions that are generally used for the soundness evaluation. The accuracy of the visualization depends on the accuracy of the arrival times, and it is demanded that the arrival times are detected automatically with required accuracy from huge amount of the elastic wave measurement data for the practical applications. In this paper, a method of the arrival time detection is proposed on the basis of the sparse matrix computation. The root mean square voltages in the noise of the wave form, is used as an index to separate the elastic waves between the noise and the signal, and the boundary of the index between the noise and the signal in the wave forms is determined in the sparse matrix. Therefore, the arrival times located in the boundary of the noise and it is detected by sparse matrix computations. The proposed method is verified on the model tests and compared with the conventional method, and it was confirmed that the proposed method detects more arrival time accurately in comparison with the conventional method.
Calculation algorithm and method for optimizing electricity consumption for the railway traction system
Authors: Popov A F , Fratu M 
Published: May 2022

Abstract
This article presents a calculation algorithm for establishing the electricity demand consumed by the railway electric traction system on a railway section, as well as methods for lowering power consumption and cost. In order to conceive the calculation algorithm, the following variables are taken into account: the number of trains in circulation on the section, the slope of the section, the train speed and the speed restrictions. For factors that substantially increase electricity consumption, but can be controlled, optimal values are computed using specific equations in the MATLAB program. The optimal values are implemented using the train’s timetable or a railway control system (SCADA). A decrease in power consumption of 5% can be expected with this method.
Optimal simulation and experimental research on the operation system of dumper of the stemming production line
Authors: Qi F L , Zhao Y Q , Zhang G Y , Tian J X 
Published: May 2022

Abstract
In order to further improve the running speed and stability of the feed truck in the mud production line, optimization simulation and experimental research on the running system of the feed truck were carried out. First, based on the analysis of the operating system of the material truck, Then, according to the experimental plan, an optimization experiment on the project site was carried out, and it was confirmed in a quantitative form that the operating efficiency and stability of the optimized truck operating system have been significantly improved. Finally, the experimental results are applied and analyzed, and a mathematical model that can be used in actual engineering is obtained, so as to reflect the actual engineering application value.
Using natural stone for buildings - an analysis of educational programs in Romania
Authors: Rusu D , Muntean R 
Published: May 2022

Abstract
The topic of sustainability is of utmost importance today, especially referring to construction industry - a sector that contributes with almost 40% to the global CO2 emissions. This subject comprises various areas of research and knowledge and one study cannot cover all of them; the studies are usually focusing on a restrained field starting from one of the sustainability characteristics. Some principles of sustainable development are referring to the use of natural products, using local raw materials, using traditional construction methods, and respecting the cultural heritage. Therefore, in this context, the use of natural stone could be a sustainable solution especially in communities that historically used stone as a building material. Considering the value which the use of natural stone in new and existing buildings could bring for a more sustainable society, the current study aims to explore how topics like use of natural stone, stone processing, stone restauration and others related to them are included in the educational programs and curricula of higher education and vocational education and training in Romania. The results are compared with the situation from other European countries in order to formulate some conclusions and recommendations.
Structural analysis and optimal retrofitting solutions for historical monument with masonry walls
Authors: Sococol I , Mihai P , Petrescu T C , Babor D T 
Published: May 2022

Abstract
”Braila Emergency County Hospital (ECH)” historical monument represents one of the main objectives of structural rehabilitation in both Braila county and Braila city. Thus, a structural strength verification for Pavilion B, Section 2, using ETABS software was performed, in order to find optimal retrofitting (rehabilitation) solutions. This analytical procedure proved to be beneficial and absolutely necessary, due to observations regarding the spatial contribution of masonry shear walls and finally the proper establishment of capable/design efforts. Following the structural calculation, it was concluded that the best solution would be to use composite materials for retrofitting a certain number of masonry shear walls, as classical retrofitting methods proved to be more expensive and structurally inefficient. Furthermore, in the context of the COVID-19 pandemic, the solution to use composite materials is beneficial, as it would entail no personnel or patients to be evacuated during the rehabilitation works, i.e. the hospital being able to continue to operate.
Cement materials obtained by partial replacement of cement powder with brick powder
Authors: Zaharie A , Tintisan M L , Siomin A C , Manea D L , Pleşa M L 
Published: May 2022

Abstract
The current evolution of the construction materials manufacturing industry requires an increased focus on the quantities of raw materials used, this can be adjusted by obtaining new sustainable materials with low energy and raw material consumption. The negative impact of the exploitation of natural resources is felt both from the point of view of the population’s health and of the economic branch. Urban development and the progress of society have led to an uncontrolled increase in the amount of waste resulting from construction and demolition. Over the years it has been shown that waste can be reintroduced into the circuit for reuse. Waste reuse positively influences the regeneration of the environment and the improvement of economic resources. The waste used in this study is the brick powder type waste, this waste being part of the category of recyclable waste resulting from building, rehabilitation modernization and demolition of different constructions This article studies the mechanical characteristics at 3, 7 and 28 days, of a series of CSIV type millet recipes with brick powder waste. Brick powder can be used in building materials without depleting the consumption of raw materials and without degrading the environment.
Analysis of the openings of aircraft composite laminated wing beam web under shear load
Authors: Zhang X L , Wang J C , Xu Q , Wang Y Y , Li C Y 
Published: May 2022

Abstract
In this paper, experiments and finite element methods are used to study the openings of the composite wing spar web of a civil aircraft. First, according to the design principles of composite laminates, determine the layup sequence and layup ratio of the spar, and then lay the beam webs and the beam edge strips integrally; then, calculate the equivalent of the spar by using the classic laminate theory Material properties, the method to calculate the equivalent elastic modulus of composite laminates of different thicknesses is derived; then, the influence of opening shape and opening angle on the strength of composite wing spar web under shear load is analyzed. Finally, the reinforcement design is carried out on the opening position. This research method not only solves specific engineering design problems, but also proposes a set of practical, cost-effective and efficient design methods for composite material opening shapes, which has a certain generality. Its design ideas and methods provide technical support for civil aircraft structural design.
Normative Data for Healthy French-Speaking Persons Aged 80 Years and Older for the DTLA Language Screening Test
Authors: Macoir Joël , Fossard Marion , Lefebvre Laurent , Monetta Laura , Renard Antoine , Tran Thi Mai , Wilson Maximiliano A 
Published: May 2022

Abstract

The Detection Test for Language Impairments in Adults and the Aged (DTLA) is a quick, sensitive, and standardized screening test designed to assess language disorders in adults and elderly people. The test was specifically developed to detect linguistic impairment associated with major neurocognitive disorders. In 2017, we established normative data on 545 healthy individuals between 50 and 80 years old from four French-speaking countries: Belgium, Canada (Quebec), France, and Switzerland.

Objective
The objective of the present study was to develop norms for the population older than 80 years of age for the DTLA.

Method
We extend the original normative data to include 149 healthy, community-dwelling, French-speaking adults aged 80 years old and older from the same countries.

Results
For the total score of the screening test, we calculated the 5th, 15th, 25th, and 50th percentiles for two education groups. The analyses allowed the identification of cutoff and alert scores based on education level.

Conclusions
With the present study, solid normative data for the DTLA derived from the performance of 694 healthy, community-dwelling adults, and elderly people are now available to clinicians and researchers.
Color under pressure: how multiple factors shape defensive coloration
Authors: Postema Elizabeth G , Lippey Mia K , Armstrong-Ingram Tiernan 
Published: May 2022

AbstractBehavioral ecologists have long studied the role of coloration as a defense against natural enemies. Recent reviews of defensive coloration have emphasized that these visual signals are rarely selected by single predatory receivers. Complex interactions between signaler, receiver, and environmental pressures produce a striking array of color strategies—many of which must serve multiple, sometimes conflicting, functions. In this review, we describe six common conflicts in selection pressures that produce multifunctional color patterns, and three key strategies of multifunctionality. Six general scenarios that produce conflicting selection pressures on defensive coloration are: (1) multiple antagonists, (2) conspecific communication, (3) hunting while being hunted, (4) variation in transmission environment, (5) ontogenetic changes, and (6) abiotic/physiological factors. Organisms resolve these apparent conflicts via (1) intermediate, (2) simultaneous, and/or (3) plastic color strategies. These strategies apply across the full spectrum of color defenses, from aposematism to crypsis, and reflect how complexity in sets of selection pressures can produce and maintain the diversity of animal color patterns we see in nature. Finally, we discuss how best to approach studies of multifunctionality in animal color, with specific examples of unresolved questions in the field.
Heterogeneous data integration methods for patient similarity networks
Authors: Gliozzo Jessica , Mesiti Marco , Notaro Marco , Petrini Alessandro , Patak Alex , Puertas-Gallardo Antonio , Paccanaro Alberto , Valentini Giorgio , Casiraghi Elena 
Published: May 2022

Abstract
Patient similarity networks (PSNs), where patients are represented as nodes and their similarities as weighted edges, are being increasingly used in clinical research. These networks provide an insightful summary of the relationships among patients and can be exploited by inductive or transductive learning algorithms for the prediction of patient outcome, phenotype and disease risk. PSNs can also be easily visualized, thus offering a natural way to inspect complex heterogeneous patient data and providing some level of explainability of the predictions obtained by machine learning algorithms. The advent of high-throughput technologies, enabling us to acquire high-dimensional views of the same patients (e.g. omics data, laboratory data, imaging data), calls for the development of data fusion techniques for PSNs in order to leverage this rich heterogeneous information. In this article, we review existing methods for integrating multiple biomedical data views to construct PSNs, together with the different patient similarity measures that have been proposed. We also review methods that have appeared in the machine learning literature but have not yet been applied to PSNs, thus providing a resource to navigate the vast machine learning literature existing on this topic. In particular, we focus on methods that could be used to integrate very heterogeneous datasets, including multi-omics data as well as data derived from clinical information and medical imaging.
ODGI: understanding pangenome graphs
Authors: Guarracino Andrea , Heumos Simon , Nahnsen Sven , Prins Pjotr , Garrison Erik 
Published: May 2022

AbstractMotivationPangenome graphs provide a complete representation of the mutual alignment of collections of genomes. These models offer the opportunity to study the entire genomic diversity of a population, including structurally complex regions. Nevertheless, analyzing hundreds of gigabase-scale genomes using pangenome graphs is difficult as it is not well-supported by existing tools. Hence, fast and versatile software is required to ask advanced questions to such data in an efficient way.ResultsWe wrote Optimized Dynamic Genome/Graph Implementation (ODGI), a novel suite of tools that implements scalable algorithms and has an efficient in-memory representation of DNA pangenome graphs in the form of variation graphs. ODGI supports pre-built graphs in the Graphical Fragment Assembly format. ODGI includes tools for detecting complex regions, extracting pangenomic loci, removing artifacts, exploratory analysis, manipulation, validation and visualization. Its fast parallel execution facilitates routine pangenomic tasks, as well as pipelines that can quickly answer complex biological questions of gigabase-scale pangenome graphs.Availability and implementationODGI is published as free software under the MIT open source license. Source code can be downloaded from https://github.com/pangenome/odgi and documentation is available at https://odgi.readthedocs.io. ODGI can be installed via Bioconda https://bioconda.github.io/recipes/odgi/README.html or GNU Guix https://github.com/pangenome/odgi/blob/master/guix.scm.Supplementary informationSupplementary data are available at Bioinformatics online.