bluuebunny/crossref_metadata_2025_split huggingface dataset:
Product Safety Management as an Important Area of The Lean Management Concept
Authors: Baskiewicz Nicoletta , Orhan Hacer Simay Karaalp 
Published: March 2019

Abstract
The article presents the issues of product safety management in enterprises managed in accordance with the Lean Management concept. The Lean Management concept is aimed at limiting or even completely excluding all forms of waste by intensifying and stimulating continuous improvement. One of the ways to reduce waste is to minimize waste and production shortages that arise due to failures in meeting the product safety requirements, quality criteria for a specific product. In addition, good practices in product safety in Lean organizations will be shown, which show the care for the safety of the products offered. On the basis of research, the following will be presented in the article: a general approach to product safety and detection of production deficiencies, as well as the autor’s original proposal for a system ensuring the safety of manufactured products.
Statistical Analysis of Quality Parameters of Pig Iron
Authors: Kardas Edyta , Pustějovská Pavlína , Brožova Silvie 
Published: March 2019

Abstract
Steel is currently main structural material in the world. Pig iron, which is the basic product of blast furnace process, is the semi-product used in steel-making processes. It is an alloy of iron with carbon containing above 2% C and other elements with limited content, intended for further processing. Chemical composition of pig iron is its basic quality factor, it defines its class and meeting requirements set by steel plant department. It is important that this chemical composition is as stable as possible. In addition, the temperature of pig iron is also very important quality parameter. The paper presents statistical analysis of quality parameters of pig iron produced in one of Polish steelworks. The content of alloying elements and temperature of tapping of pig iron from blast furnace were examined. The amount of non-conforming production and the losses related to the low quality were assessed.
Management The Safety of Exploitation of the Rotation Mechanism in a Self-Propelled Crane
Authors: Krynke Marek , Vaško Alan 
Published: March 2019

Abstract
The article analyzes of the load capacity of the rotation mechanism of the boom arm sub-assembly for a self-propelled crane. The uneven flexibility of systems supporting structures of the machine was taken into account in the identification of the load. The consideration are illustrated by the example slewing bearing from self-propelled crane. FEM method was used for calculations. The basic problems of construction of numerical model were discussed. Sample calculations of bearing carrying capacity has been done taking into account flexibility of bearings supporting structures, which also allowed to define the internal load distribution in the bearing. On example of the supporting structure of the mobile crane DST 5050 the internal load distribution in the crane bearing at different positions of the crane machine body were defined. During the rotation of the crane body priority angels were indicated. It has been shown that the deformations of the supporting frames are so large that they significantly change the distribution of forces transmitted by the individual bearing rollers.
Damage Risk of the Raceway Edge Arise in Four-Point Slewing Bearing
Authors: Krynke Marek , Mielczarek Krzysztof 
Published: March 2019

Abstract
In the article some forms of damage to raceway of slewing bearings for single-row ball bearing slewing ring with four-point contact and their causes were shown. Changes of the contact angle and its influence on the geometry for contact zone of the rolling elements raceway were analyzed. An identification of changes for contact angle of individual balls for different parameters of the contact was received. It was showed that contact angles of some rolling elements were increasing. It can cause damage to the raceway by spalling or rolling out of edge of the bearing ring. Ways of avoiding too early damage to the raceway at the stage of the design and the selection of coronary bearings were suggested.
Tpm Safety Impact – Case Study
Authors: Maszke Adrian 
Published: March 2019

Abstract
The global production companies of today are exposed to increasingly stronger pressure to implement new technologies, improve quality and decrease production costs. All this is related to ensuring a proper technical condition of machines and devices. This article presents the results of an analysis of the impact of implementation of TPM at the rolling mill on work safety. The number of near misses and accidents was used as a measure of the safety level.
Creating Safe and Competitive Conditions for the Provision of Rail Transport Services
Authors: Stasiak-Betlejewska Renata , Török Ádám 
Published: March 2019

Abstract
Safety is a key and necessary condition for the sustainable development of the railway industry. Every entity operating in the railway area should maintain and increase the level of security as part of its operations. The subject of the analysis of data on the rail transport safety in European countries and content of the safety culture program implemented in Poland, whose main objective is to implement safety culture principles in the railway transport and to encourage all companies operating in the railway industry to improve the rail transport safety as the key condition for the sustainable development of railway industry. Paper contains results of the analysis of the European rail transport safety level in the context of the objectives set for Poland indicated by the European Union (CSI value) as improvement areas.
The Smoothed Bootstrap Fine-Tuning
Authors: Dwornicka Renata , Goroshko Andrii , Pietraszek Jacek 
Published: March 2019

Abstract
The bootstrap method is a well-known method to gather a full probability distribution from the dataset of a small sample. The simple bootstrap i.e. resampling from the raw dataset often leads to a significant irregularities in a shape of resulting empirical distribution due to the discontinuity of a support. The remedy for these irregularities is the smoothed bootstrap: a small random shift of source points before each resampling. This shift is controlled by specifically selected distributions. The key issue is such parameter settings of these distributions to achieve the desired characteristics of the empirical distribution. This paper describes an example of this procedure.
The Energy Use Of Granulate And Pyrolysis Oil From Discarded Car Tires As A Method To Increase Ecological And Energy Safety
Authors: Tomporowski Andrzej , Piasecka Izabela , Mrozński Adam , Kruszelnicka Weronika , Bałdowska-Witos Patrycja , Kovalyshyn Stephan 
Published: March 2019

Abstract
On average, there are about 60 kg of rubber in a passenger car, about 67% of which are tires, about 20% of all kinds body seals, doors and windows, suspension elements amount to 5%, the rest are other elements related to the engine (seals, hoses, wires, pads, etc.). Rubber waste is too valuable resource to direct to landfills. The vast majority of recovery of used tires in Poland (over 70%) is carried out by burning tires with energy recovery. Tires in the form of granulate, mixed with coal dust, are burn in some combined heat and power plants. The paper presents results of experimental studies of possible use for energy purposes, granules and pyrolysis oil the resulting from discarded car tires for increasing ecological and energy safety. Energy properties of granulates and pyrolysis oil were investigated and the shape and size of granulate particles were analyzed. For this purpose, digital image processing (CAMSIZER device) and calorimeter were used. It was found that the products of tire recycling decommissioned from exploitationare the high-energy material with good calorific value. Based on the results of experimental studies, application conditions of rubber waste for energy purposes was formulated.
The Role of Human Resources in The Creation of Innovation Position of Poland - Comparative Analysis to Eu Countries Based on SII Index
Authors: Ostraszewska Zuzanna , Tylec Agnieszka , Vasylyk Sergii 
Published: March 2019

Abstract
Because of his knowledge, skills and activities, a man is a causative factor for most processes occurring in modern organizations, and may influence the level of their safety. The ingenuity and creative commitment of a man determines his ability to create and implement innovative solutions, to develop himself and the organization and thus, to reduce business risk.
Human resources are one of the factors that positively affect the location of Poland on the EU map of innovation. The aim of this article, on the background of the definitional aspects of innovation and its measurement with the SII index, is to address the issue of the role of these resources in building an innovative position of Poland. Data characterizing the Polish economy were compared with the results of EU countries.
International Dimension of Knowledge Management in Supplier of Quality Outsourcing – Case Study
Authors: Puto Agnieszka , Puto Mariusz 
Published: March 2019

Abstract
Currently, the conditions enterprises are operating in are marked by considerable instability. Thus the changes they may undergo are difficult to predict. Practitioners and theoreticians of management science point to various approaches to building competitive advantage. In the past few years, the focus has been put mainly on information and knowledge. According to advocates of the knowledge management concept, knowledge is of key importance to building competitive advantage and succeeding on the market. The issues of knowledge and how it is gathered, updated and applied are not new. The challenge for contemporary entrepreneurs is, however, how to manage knowledge in global enterprises. The aim of this study is to analyse the issue of knowledge management in a company which based its development on expansion into foreign markets. The research method applied is illustrative case study, the aim of which is to show how important knowledge management is for improving the efficiency of an internationalized enterprise.
Definition and classification criteria of logistics services for elderly
Authors: Jarocka Marta , Wang Hao 
Published: April 2019

Abstract
An ageing population is a natural and inevitable phenomenon that constitutes an opportunity for the development of the logistics services industry. This is related to the fact that a new demographic profile of the world is determined by a growing number of customers — seniors – with special needs that generate the demand for services such as carriage and home delivery of food and medicines. Therefore, considering the growing demand for logistics services intended for older adults, there is a justified need to develop theoretical knowledge in this area. The paper aims to define a logistics service dedicated to an elderly person as the ultimate recipient as well as to identify the classification criteria of such services. The first part of the article is based on a literature review and presents definitions of a service and a logistics service according to various researchers. It also identifies different classifications of logistics services. These theoretical aspects provided a basis for authors to propose the notion of a logistics service and a catalogue of criteria for systemising logistics services dedicated to older adults. Logistics services for the elderly may be grouped according to classification criteria applicable to what is widely understood as logistics services in source literature. The classification criteria are the type of service, the immateriality of service, the frequency of contacting the customer, the type of purchaser market, the degree of service customisation, the type of a relationship between the service enterprise and the customer, and the place of service provision. Nonetheless, due to the customer-oriented approach in logistics, the authors proposed the classification criteria of these services with regard to age, financial situation, needs, health, expectations, hobby, skills and problems of older adults. Such an approach to classification is determined by considerable inherent diversification of the discussed group of customers as well as a specialised catalogue of logistics services. The classification of logistics services may contribute to the improved design of such services.
Polish experience from the operation of helicopters under harsh conditions
Authors: Przysowa Radosław , Gawron Bartosz , Kułaszka Artur , Placha-Hetman Karol 
Published: April 2019

Abstract
The result of operating the military helicopters in a dusty environment is a loss of performance and premature failures of gas paths of the engines. The efficient protection of the power plant against dust ingestion is tough, especially in the desert. The article summarises the experience accumulated while operating the military helicopters under harsh conditions in Poland and during foreign missions. There were characterised the types of conducted missions, operated helicopters, protection methods of engines and common failures. It was stated that the performance of TV3-117 engines and their particle separation systems was insufficient in the mountains and on the desert (Iraq and Afghanistan). The deterioration of gas paths resulted in the loss of helicopters’ performance and substantially contributed to the few aircraft incidents. The experience gained during foreign missions is used in training the crews and ground personnel and in the programmes of modernisation and renewal of the helicopter fleet.
Utilising a Skin Prick Test for the determination of the presence of allergic rhinitis in divers
Authors: Olszański Romuald , Dąbrowiecki Zbigniew , Niewiedział Dorota , Gadomski Krzysztof , Zieliński Ewa 
Published: March 2019

Abstract
Allergic rhinitis occurs in various regions of the world and affects from 10 to 40% of the population. The skin prick test is the “gold standard” for the detection of type I allergic diseases according to the Gella and Coombs classification, which is mediated by IgE. For our experiment, skin prick tests were performed on 60 divers aged between 30 and 40 years of age. The following tests for airborne allergens were used: tests for pollen from trees, grasses, cereals, weeds, proteins from house dust mites, animal hair and epidermis, and moulds. On the basis of an interview and a positive skin prick test allergic rhinitis was diagnosed in 17 divers.
Conclusions:

Allergic rhinitis can cause health problems in divers and be the cause of diving accidents.

The application of the skin prick test during the health qualification in the Military Maritime Health Commission, would allow the exclusion of diver candidates suffering from allergies.
Intrapartum transfers from the Birth Centre to the Obstetric Unit in 2017 – analysis of reasons
Authors: Łukasiewicz Aleksandra , Baranowska Barbara , Dzierżak-Postek Edyta , Węgrzyn Piotr 
Published: March 2019

Abstract

Introduction. The standard of perinatal care gives the woman the right to consciously choose the place of birth. Birth Centres (BC) run by midwives implement a vision of a non-medicalized birth in intimate homelike conditions.

Aim. The aim of the study is to determine the causes of transfers from the Birth Centre to the Obstetric Unit and to indicate the social and demographic characteristics of the women giving birth that may predispose to transfer.

Material and methods. The study was based on the analysis of the medical records of women who were transferred from the BC to the St. Sophia Obstetric Unit in Warsaw. 88 women who were transferred constituted the study group.

Results. The most numerous group were women giving birth aged 30-34. The majority were giving birth for the first time and had higher education. Intrapartum transfers were related to the mother’s obstetric condition, fetal condition or disruption of the childbirth.

Conclusions. Failure to progress of labour is the main cause of transfers. The women giving birth for the first time aged 30 and over, admitted for to the BC after 40 weeks of pregnancy and dilation below 4 cm were the most often transferred group of women.
Informatization of enterprises in the light of transaction costs
Authors: Szplit Marcin , Szplit Andrzej 
Published: March 2019

Abstract
The subject of the publication are contracts concluded by enterprises, regarding the implementation and operation of information systems, which support various functional areas. The implementation and operation of IT systems in enterprises is presented as a mechanism of permanent transactions entered in two contracts: the selection and purchase of an IT system, and the operation and service of the system.
Historical, collective, institutional and market memory (Development of emergent phenomena)
Authors: Dworak Janusz 
Published: March 2019

Abstract
The article is of interdisciplinary nature with its emphasis laid on sociology. Its aim is to present some considerations on the way in which emergent phenomena1 are created. The question whether the reasoning based on analogy fosters phenomena related to the emergence of new notions comes as the research problem that the author tries to solve. The research hypothesis is formulated as the following statement: applying analogy,2 considerations which refer to historical memory allow additional notions, such as collective, institutional and market memory, to emerge. In the article, the research method applied in order to achieve the assumed aim is the grounded theory3 because it allows us to generate knowledge in numerous fields. During the articulation of theoretical annotations,4 new emerging notions come as a good starting point for further studies on various types of memory, and consequently, they determine their usability in practice. In the article, the annotations are placed in the footnotes and they present the author’s thoughts and reflections presented by people who have been consulted with regard to the discussed problems. Presented in the theoretical part of the article, the reference to scientific achievements in the field of marketing memory is actually very difficult because they are extremely scarce.
Historical memory may be seen as knowledge resources recorded in some past stories, diaries and specialist publications; it also refers to artefacts collected in museums and to historical monuments that represent the culture of a particular society. Collective memory refers to historical awareness that is manifested by the cultivation of traditions and customs, reconstruction of buildings in which previous generations used to live. The concept of institutional memory is related to a specific vector that provides collective memory with magnitude and direction in the form of interpretation of events; it can be considered as a resultant of exogenous and endogenous processes taking place in a society. On the basis of those considerations, another type of memory appears: market memory as a new category of knowledge. The essence of market memory comes down reminding various communities about products the consumption of which is supposed to satisfy their needs at a specific level, but it will also lead to the replacement of currently operating devices with new and more advanced ones.
The school institution viewed as an organisation and its environment
Authors: Brzychcy Katarzyna 
Published: March 2019

Abstract
Despite the fact that they are public institutions and that they seem to have the status quo of their functioning already established, schools are still exposed to various internal and external organisational changes. The article comes as a broad reflection on schools viewed as organisations and their environment, including activities that are undertaken in favour of development of such organisations. First, the article presents an explanation of the essence of an organisation. On the basis of some definitions provided by expert literature, schools are presented as organisations. Some particular attention is focused on the problem related to school environment in its micro- and macro-dimensions; it specifically refers to the establishment and maintenance of organisation–school relations. Theoretic considerations underlie the discussion of the essence of the presented survey and its results. The aim of the survey has been to identify entities that cooperate with contemporary schools and the environment in which such cooperation takes place and also to indicate the consequences that result from the interpretation of schools as organisations and their relations with the environment, viewed from the perspective of resources. The material for the research survey has been collected with the methods involving questionnaire forms and interviews. The results of the research come as a part of a more extensive research process.
Dynamic Capillarity During the Water Flooding Process in Fractured Low Permeability Reservoirs
Authors: Li Ying , Li Haitao , Chen Shengnan , Lu Yu , Li Xiaoying , Luo Hongwen , Liu Chang , Cui Xiaojiang 
Published: April 2019

Abstract
Capillary pressure and relative permeability are the two main factors determining the multiphase flow in oil and gas reservoirs. Dynamic capillarity, which includes the dynamic capillary pressure and the dynamic relative permeability, should be considered when performing waterflooding in low permeability oil reservoirs. To stimulate the production, hydraulic fracturing has been applied in low permeability oil reservoirs. In this work, dynamic capillarity in fractured low permeability reservoirs were investigated through numerical simulation, which applied the capillary pressure and relative permeability data obtained from steady and dynamic waterflooding experiments. The numerical simulation conducted sensitive analysis using CMG. The results show that if the steady data are used in the prediction, the oil saturation reduces more evenly and more quickly, and the production capability of the reservoir is overestimated. Moreover, the production well will be predicted to breakthrough earlier, with a higher breakthrough water flow if the dynamic capillarity is neglected This work demonstrates the importance of considering dynamic capillarity in fractured low permeability reservoirs, and provides another perspective to predict the production in fractured low permeability reservoirs.
Determining Viscoelastic Models from Seismic Attenuation Measurements
Authors: Liu Xu , Greenhalgh Stewart 
Published: April 2019

AbstractWe have developed two simple deterministic methods to extract the parameters of viscoelastic models from seismic data. One is for the Zener model using phase velocity dispersion observations and the other is for the single fractional Zener model (Cole-Cole model) using attenuation versus frequency observations. The observations here represent either the arbitrary frequency-dependent dispersion behaviour from actual measurements or from some physical dissipation mechanism(s). In this contribution, it is also proved that similar to Zener model, the attenuation factor curve for the Cole-Cole model, on a logarithmic frequency-axis, symmetric about the frequency corresponding to the peak attenuation value, the peak frequency itself is equals to the inverse square root of the product of the two (stress and strain) relaxation times.The Cole-Cole model has a broad dispersion response over an appreciable frequency range, but is not very suitable for replicating complicated seismic attenuation dispersion curves which exhibit multiple peaks. In this case, we use the General Zener (GZ) model comprising multiple Zener elements and the General Fractional Zener (GFZ) model comprising multiple Cole-Cole elements to approximate the attenuation observations. Their parameters, including relaxation times and fractional derivative orders, are determined using a simulated annealing inversion method. Instead of searching for the relaxation times directly, we search for the Zener peak attenuation points (attenuation value and corresponding frequency, each of which corresponds to a pair of relaxation times. There are distinct advantages of such an approach.