bluuebunny/crossref_metadata_2025_split huggingface dataset:
Data-Driven Temporal-Spatial Model for the Prediction of AQI in Nanjing
Authors: Zhao Xuan , Song Meichen , Liu Anqi , Wang Yiming , Wang Tong , Cao Jinde 
Published: August 2020

Abstract
Air quality data prediction in urban area is of great significance to control air pollution and protect the public health. The prediction of the air quality in the monitoring station is well studied in existing researches. However, air-quality-monitor stations are insufficient in most cities and the air quality varies from one place to another dramatically due to complex factors. A novel model is established in this paper to estimate and predict the Air Quality Index (AQI) of the areas without monitoring stations in Nanjing. The proposed model predicts AQI in a non-monitoring area both in temporal dimension and in spatial dimension respectively. The temporal dimension model is presented at first based on the enhanced k-Nearest Neighbor (KNN) algorithm to predict the AQI values among monitoring stations, the acceptability of the results achieves 92% for one-hour prediction. Meanwhile, in order to forecast the evolution of air quality in the spatial dimension, the method is utilized with the help of Back Propagation neural network (BP), which considers geographical distance. Furthermore, to improve the accuracy and adaptability of the spatial model, the similarity of topological structure is introduced. Especially, the temporal-spatial model is built and its adaptability is tested on a specific non-monitoring site, Jiulonghu Campus of Southeast University. The result demonstrates that the acceptability achieves 73.8% on average. The current paper provides strong evidence suggesting that the proposed non-parametric and data-driven approach for air quality forecasting provides promising results.
The Utility of a Questionnaire Proposal as an Analytic Diagnostic Tool in Healthcare Providers Occupational Hand Eczema
Authors: Chiriac Anca E. , Taranu Tatiana , Chiriac Anca , Georgescu Simona Roxana , Foia Liliana , Podoleanu Cristian , Stolnicu Simona , Azoicai Doina 
Published: August 2020

Abstract
The aim of this study was to estimate the prevalence of self-reported work-related and occupational hand eczema, as well as associated risk factors in hospitals and out-patient clinics in Romania. A standardized questionnaire was addressed to health professionals from different medical fields. Out of 245 healthcare providers who completed the survey, 235 were women (95.9%), and 243 were working more than 8 hours/day in hospitals (99.18%). Hand eczema was self-reported and documented in almost one third of the nurses (33.49%), the most frequently involved trigger factor being powdered latex gloves. A total of 207 (84.48%) individuals denied any present or past allergic diseases. Only one nurse declared that severe hand eczema was the cause of losing her job at the hospital. Exposure assessment is essential for the diagnosis of work-related or occupational skin diseases.
Farmed fish as a source of dioxins and PCBs for Polish consumers
Authors: Mikołajczyk Szczepan , Warenik-Bany Małgorzata , Maszewski Sebastian , Pajurek Marek 
Published: August 2020

Abstract

Introduction
This paper reports polychlorinated dibenzo-p-dioxin (PCDD), polychlorinated dibenzofuran (PCDF), and polychlorinated biphenyl (PCB) concentrations in fish collected from Polish and Vietnamese farms and the related risk for consumers.

Material and Methods
Altogether, 160 samples were analysed using an isotope dilution technique with high-resolution gas chromatography coupled with high-resolution mass spectrometry (HRGC-HRMS). To characterise the potential health risk associated with PCDD/F and dioxin-like polychlorinated biphenyl (DL-PCB) intake, doses ingested in two 100 g portions of fish by adults and children were calculated and expressed as the percentage of the tolerable weekly intake (TWI) newly established by the EFSA in November 2018 at 2 pg WHO-TEQ kg−1 b.w.

Results
Generally, levels in fish muscles were low in relation to maximum limits (4), being in the range of 0.02–3.98 pg WHO-TEQ g−1 wet weight (w.w.) for PCDD/F/DL-PCBs and 0.05–24.94 ng g−1 w.w. for NDL-PCBs. The highest concentration was found in eel muscles. The least polluted were pangas and zanders and the levels were at the limits of quantification. Consumption of two portions of fish per week results in intakes of 9– 866% TWI by children and 4–286% TWI by adults.

Conclusion
Frequent consumption of some species (for example eel and bream) can pose a health risk to vulnerable consumers and especially children and pregnant women.
Conditions of Steel Industry in Poland After Restructuring – the Analysis by Using C-D Model
Authors: Gajdzik Bożena 
Published: August 2020

Abstract
The primary objective of the article is to identify conditions of restructuring from the point of view of Polish steel industry by using Cobb and Douglas model (C-D). Both in European economies and Polish economy, the steel industry is included to important branch of industry. The steel sector has been a permanent component of the Polish economy. Restructuring of metallurgy in Poland has been realized since 1990s. Finally after several years of changes (in the first decade of the 21st century) steel plants adjusted theirs operations to market economy conditions. Nowadays we think that the steel sector has competitive position on the domestic and European markets but if it is truth. On the base of C-D model, the author of the article presents results of the statistical analysis and answer the question about influence property and employment on production in steel industry. Obtained relations between particular components of production function show the condition of steel industry in Poland.
Modelling and Simulation Testing of Main Bearing Loads and Strains in Crankshafts Caused by Deviations in the Position of the Shaft Journal and Bearing Axes
Authors: Nozdrzykowski Krzysztof , Grządziel Zenon 
Published: August 2020

Abstract
This article presents the results of a simulation, testing the variation of main bearing loads and strains in crankshafts caused by geometrical deviations of the bearing system to justify the necessity and purposefulness of measurements of both the shape and axes position deviations of crankshaft journals. Measurements of these deviations at the existing level of applied measuring techniques are significantly limited. The research also accentuates the practical implementation of a measuring system equipped with the so-called flexible support system for the measured object, developed at the Maritime University of Szczecin. This system makes it possible to eliminate elastic deformations of the crankshaft due to its own weight, whereby the measurements of geometrical deformations of the crankshafts can be carried out with appropriate accuracy in conditions corresponding to the non-reference measurements when determining the object measured in counterpoints. The obtained results have fully confirmed the purposefulness of the conducted research and the validity of the theses.
Problem of Interruptions in Reinforcement Works and Longwall Exploitation
Authors: Biały Witold 
Published: August 2020

Abstract
This paper presents the problem of technical means failure, used both in longwall reinforcement and in the mining process. Longwall reinforcement – a concept related to launching a longwall mining excavation – is one of the most important elements in the process of hard coal seams exploitation. It consists in introducing all necessary machinery and equipment to the future longwall in order to enable the effective mining process. The efficiency of a longwall excavation as well as works related to the reinforcement of longwalls depends directly on properly selected machines and equipment of the longwall complex. In order to ensure greater effectiveness and efficiency, it is necessary to find the causes of the most frequent failures in these processes and effectively counteract them. These actions result in increased production availability of machines and equipment involved in the mining process. The increase of production availability is significantly influenced by the technical condition of technical means used both in longwall reinforcement and in the mining process, and their proper selection. This will ensure a largely failure-free and uninterrupted progress of works.
Study of Physical and Mechanical Properties of Steel During Grinding and Sharpening
Authors: Biały Witold , Ivanova Tatiana Nikolajevna , Žarnovský Jozef , Ružbarský Juraj 
Published: August 2020

Abstract
A direct influence on the physical and mechanical state of the surface layer of wedge-shaped plates made of 8KHF steel is exerted by heat generation processes developing in the zone of a high-speed thermal process. Research on the influence of the parameters of a high-speed thermal process on the change in the structure of 8KHF steel (GOST 5950-2000 Russia, standard PN/H 85023 brand NCV1 Poland) was fulfilled. It allowed studying the nature of the change in the microstructure depending on short-term heating to various temperatures and rapid cooling. As a result, critical points of the beginning and the end of structural transformations during heating were determined. Research on thermal processes in a high-speed thermal process made it possible to establish regularities of influence of cutting speed, source speed, contact area, coolant properties and heat transfer coefficient on the temperature and rate of thermal processes in surface layers, as well as their impact on the depth of heating to a certain temperature. The study also allowed us to show the relationship between temperature and rates of heating and cooling. The solution to this problem, taking into account the action of the cooling fluid, gives the opportunity to bring the picture of the development of thermal processes closer to real conditions and makes it possible to reasonably predict the structural state of the surface layer of wedge-shaped parts made of 8KHF steel under various conditions of a high-speed thermal process.
Analysis of Performance Processes Material Management
Authors: Sitko Jacek 
Published: August 2020

Abstract
Regardless of unit production, mass production – an excellent production plan is always expected to combine the exact amount of materials at the right time with production cells and employees. An accurate production plan saves money by reducing production costs and time. It helps to achieve the goal and generate the best production plan. The article addresses the problems of material resource organization in industrial, mining and processing enterprises, affecting production efficiency. Particularly the problems of planning and preparation of unit, serial and mass production in relation to specific products. Depending on the nature of material consumption (basic or auxiliary materials), different planning methods and techniques are used.
Acoustic Modelling of Sport and Hunting Shooting Ranges in the Aspect of Shaping Noise Emissions Into the Environment
Authors: Boczkowski Arkadiusz 
Published: August 2020

Abstract
The article deals with the problem of acoustic modelling of sport and hunting shooting ranges for the purposes of carrying out acoustic impact assessments on the environment. The fashion for recreational shooting and the dynamic development of shooting ranges resulted in conflict situations between the shooting range and the residents. Increasingly, the condition for allowing the shooting range to be used is to carry out an acoustic analysis to confirm the lack of noise nuisance. Therefore, it is necessary to develop guidelines for acoustic modelling of shooting ranges, taking into account their purpose and types of shooting axes. Each of the shooting axes is designed for a different type of shooting and thus has different acoustic characteristics. In the article, the author presents a method of modelling noise emissions from the shooting range on the example of one of the popular shooting competitions which is the hunting trap. First, acoustic measurements of the unit noise source related to the firing of shots by a firearms shooter were made. Then the directional characteristics of this source were determined, the shooting axis of the “hunting trap” type was modelled during a typical shooting competition and its directionality was determined. Then, on the example of a specific shooting range, the possibility of using the results to analyse the propagation of noise into the environment during typical shootings on the trap axis was presented.
Analytical Tools in an Industrial Enterprise
Authors: Zajačko Ivan , Prajová Vanessa 
Published: August 2020

Abstract
Manufacturing companies operate on data from production, operation and trade. The strategy of creating and collecting data at the centre of production processes has significantly improved in recent years. Manufacturers are now collecting and storing vast amounts of data from their manufacturing facilities, both online and offline, from multiple geographic locations and with a growing number of separate data repositories. The design of workplaces and products continues to migrate from paper to the computer, where analysis accuracy, visualization, and collaboration utilities allow designs to be realized much faster and better than ever before. As the pace of this development accelerates with the increased capabilities of the software design tools, less time is spent on physical prototyping, allowing for shortened time-to-market for new products. Ergonomists, who in the past used the physical prototypes to perform human factors analyses, are now challenged to move the analysis into the virtual domain using new tools and methods. Usability, maintainability, physical ergonomic assessments, psychological perception, and procedural training are some of the human factors issues that might benefit from analysis prior to the first physical incarnation of the design.
Use of Quality Management Instruments in the Window Production Process
Authors: Mazur Magdalena 
Published: August 2020

Abstract
The article presents the results of research analyzing the level of use of quality assurance instruments. The use of quality management instruments refers to the production of windows based on PVC profiles. Based on the results of surveys, which were additionally verified by an extended expert interview, an analysis was made of the level of use of quality assurance instruments at individual stages of the technological process. The main conclusion of the analyzes is that the most commonly used quality instruments are Pareto-Lorenz analysis, Ishikawa diagram, control cards and the FMEA method.
Post-Pandemic Marketing @Marketing
Authors: Kretek Henryk A. , Dworak Janusz 
Published: August 2020

Abstract
Marketing concentrates mainly on customer acquisition by means of advertisements broadcast in mass media and on billboards. The change to be made in traditional marketing is the shift of interests from satisfying needs to meeting expectations. @Marketing may serve as a tool for that. The aim of this paper is to present a new concept for @marketing, based on innovative forms of product presentation. The paper focuses on the marketing content, without consideration of technical aspects. Research has been carried out in the field of customers’ expectations towards online presentations. In the new conditions, a product presentation should be expanded by innovative forms such as narration, photography and computer graphics. Therefore, there is a need to develop comprehensive projects for planning online presentations as soon as possible. It should be preceded by detailed analyses carried out by IT specialists and marketing experts.
Post-Industrial Areas Management, Evaluation of the Area’s Suitability for Redevelopment – Case Study
Authors: Michalski Krzysztof 
Published: August 2020

Abstract
The transformation of the Polish economy during the period of its transformation from a planned socialist economy into a market economy resulted, among others, in the emergence of a large number of post-industrial areas which are no longer used. Located often in developed urban areas, with many disadvantages such as contamination or unstable ownership status, they are not of interest to investors. Exploiting the potential they undoubtedly have would in many cases require the investment of considerable resources, but in order for these to be allocated to the investment, the investor expects to gain complete knowledge of the character and specificity of the place. The article is an example of a preliminary analysis of a selected post-industrial area, which helps to outline the direction of future area redevelopment.
Risk Analysis in Construction Phase of Oil and Gas Projects: A Critical Literature Review
Authors: Alavi Hamed , Nadir Soma Latif 
Published: August 2020

Abstract
The construction phase of oil and gas projects (OGPs) is a risky process and project managers face numerous challenges during this particular period. A proper risk analysis and management during the construction phase of the OGPs not only will affect the timely and successful operation of the project as a whole, it can also affect occurrence of risks in subsequent phases and overall economic viability of the project. As a result, via using extensive literature review, this study tries to answer the question of what are main risks involved in construction phase of OGPs and which methods are used for identifying them? The outcome of this research would likely be a valuable source for construction professionals to improve project performance while managing existing risks. It is also useful to avoid common problems that befall many project managers and will assist them to have a better understanding of risk management as part of a project plan.
Socially Responsible Supplier Development. Practices of Automotive Industry
Authors: Hąbek Patrycja , Villahoz Juan Jose Lavios 
Published: August 2020

Abstract
A socially responsible company should take responsibility for its impact but also take care of the impact throughout its supply chain. Its perspective must be wider than only its own practices. Supplier development process can be used to spread socially and environmentally responsible practices across the supply chain. The aim of the paper is to identify and classify the socially responsible activities practised by the car producers and dedicated to their suppliers. In the paper sustainability reports of seven automakers were analysed. The authors used the technique of content analysis. The socially responsible practices dedicated to suppliers was classified into three dimensions and four categories. All of the automakers disclose information in their sustainability reports on socially responsible practices focused on their suppliers. However, the practices differ in terms of dimension and the area of CSR applied.
Migration Factor of Stimuling the Development of the Production Industry in Ukraine and Poland
Authors: Mosora Larysa , Tolubyak Vitalii , Brodny Jarosław , Romanyshyn Liubomyr , Mosora Yurii 
Published: August 2020

Abstract
The article examines the influence of migration processes on the formation and development of production capacities of countries. It is emphasized that population migration significantly affects the social and economic indicators of the country; under such influence, they can have both positive and negative trends. The article presents the main positive and negative consequences of population migration for donor countries, recipient countries, and for migrants themselves. It is proved that one of the most popular and promising is educational migration, which, under certain favorable circumstances, makes it possible to form highly qualified personnel, deepen international cooperation between higher education institutions of different countries, and strengthen the joint use of educational and scientific potential. The attention is focused on the fact that Ukraine today acts as a donor country and a leader in the number of young people who travel to study in Poland. It is indicated that in order to effectively regulate migration processes by the state, it is appropriate to ensure interaction between higher education institutions of different countries, namely, in the sphere of: a double-degree program, foreign internships, and holding joint international conferences. Using the example of Ivano-Frankivsk National Technical University of Oil and Gas and Ternopil National Economic University, it is shown how such interaction is implemented in practice and its consequences. The conclusions are based on the fact that educational migration is one of the most favorable types of migration. With its proper control by the state, it is possible to stimulate the development of the production industry in countries and improve social and economic indicators.
Development of the Market of Traditional Food Products in the Lubuskie Region in the Years 2006-2020
Authors: Kułyk Piotr , Kaźmierczak-Piwko Leszek , Dybikowska Adrianna , Dąbrowski Arkadiusz 
Published: August 2020

Abstract
The paper discusses the issue of the development of the market of traditional food products in the Lubuskie province. Legal and institutional aspects of the development of the market are presented and the significance of the system of the European Union is stressed. The analysis was carried out from the point of view of sustainable development of the sector and according to the product structure as well as location of selected elements of the system of distribution. The aim of the paper is to identification and structuring of traditional food products in the Lubuskie region. Types of traditional products manufactured and sold on the market are presented, the research was conducted on the basis of secondary sources by means the analysis of information provided by the Ministry of Agriculture and Rural Development in the years 2006-2020. Changes which have taken place in the system of distribution are shown, and in particular local market places offering direct contact between producers and consumers of regional products. The analysis demonstrates increased interest in this market among regional producers.
Fourier Variant Homogenization of the Heat Transfer Processes in Periodic Composites
Authors: Wierzbicki Ewaryst , Kula Dorota , Wodzyński Łukasz 
Published: August 2020

Abstract
The well-known parabolic Heat Transfer Equation is a simplest recognized description of phenomena related to the heat conductivity in solids with microstructure. However, it is a tool difficult to use due to the discontinuity of coefficients appearing here. The purpose of the paper is to reformulate this equation to the form that allows to represent solutions in the form of Fourier’s expansions. This equivalent re-formulation has the form of infinite number of equations with Fourier coefficients in expansion of the temperature field as the basic unknowns. The first term in Fourier representation, being an average temperature field, should satisfy the well-known parabolic heat conduction equation with Fourier coefficients as fields controlling average temperature behavior. The proposed description takes into account changes of the composite periodicity accompanying changes in the variable perpendicular to the surfaces separating components, concerning FGM - type materials and can be treated as the asymptotic version of Heat Transfer Equation obtained as a result of a certain limit passage where the cell size remains unchanged.