bluuebunny/crossref_metadata_2025_split huggingface dataset:
Delineation of post-industrial landscapes of the Upper Silesian corridor in the Basin of Ostrava
Authors: Kolejka Jaromír , Klimánek Martin , Martinát Stanislav , Ruda Aleš 
Published: May 2015

Abstract
The post-industrial landscapes represent a legacy of the industrial revolution. There have been gradually formed numerous enterprises of various industry branches on the territory between Czech-Polish border in the North and Moravian-Silesian Beskydes Mts. (a part of Carpathians) in the South (the western border follows the foothills of Hercynian Bohemian Highlands). In the given study, there are demonstrated examples of the post-industrial landscape in the concerned area of Ostrava, which is a part of the so called Upper Silesian industrial corridor that is intensively linking industrialized region of Upper Silesia in Poland and the Czech Republic with other developed regions of Europe to southwest through the Moravian Gate to the Danube region. This paper demonstrates the procedure for defining the post-industrial landscapes in general, their classification and standardization using the available data sources and GIS technology. For the processing the data of the deployment of brownfields, contaminated sites, industrial constructions of architectural heritage, mining points and areas, human made landforms, industrial and landfill sites etc. were used. They document the genesis, the territorial shape and the geographic position of the post-industrial landscape in the study region. In the concerned area of Ostrava four “rural” post-industrial landscapes were identified and classified into three different genetic types. This paper also presents a methodology for identifying, mapping and classification of post-industrial landscapes on the basis of publicly available and state-managed databases.
Emission and commercial utilization of coal mine methane in the Upper Silesian Coal Basin illustrated by the example of Katowice Coal Holding Company
Authors: Kędzior Sławomir 
Published: May 2015

Abstract
The article deals with the issue of the release of methane from coal seams and its emission to the atmosphere from the mines of Katowice Coal Holding Company in the years of 1997-2011. This period is characterized by organizational changes in Polish mining industry involving liquidation or a merger of mines, an increase in both the concentration of coal mining activity, and the depth of the exploitation at which the amount of methane in coal seams grows ever larger. The analysis of the variation in the methane emission from the coal mines in that period points out a decline in the intensity of the emission until 2005, probably owing to the liquidation of some mines, later, but in the years of 2006-2010 - a considerable increase in both the absolute methane emission of the mines and the methane emission to the atmosphere despite a dropping coal extraction. This signifies that mining activity takes place in increasingly difficult gas conditions prevailing at great depths. Despite a slight decrease in both the absolute methane emission and methane emission to the atmosphere in 2011, a continuously growing trend of this phenomenon should be expected in the future. A similar tendency is also visible in the whole Upper Silesian Coal Basin, however the methane emission peak falls in 2008. In order to curb the growth of the amount of the emitted methane, it should be commercially utilized. Particularly vital is considering methane as an unconventional resource, following the example of other countries.
Universities for sustainability – new challenges from the perspective of the University of Warsaw
Authors: Kalinowska Anna , Batorczak Anna 
Published: May 2015

Abstract
The documents adopted by the international community during the UN Conference on the Environment and Development convened in Rio de Janeiro in 1992 make clear the leading role institutions in higher education are to play in transforming contemporary civilisation in the direction of sustainable development. It is beyond dispute that higher education has a critical role to play in developing tomorrow’s decision makers, professionals and citizens. Universities can help with the accomplishment of sustainable development goals if they transform education in this direction, extend their support to interdisciplinary scientific research and ensure the appropriate evolution of the means by which they themselves are managed. However, ensuring that a higher education establishment heads in the direction of sustainability in all academic areas of activity is a difficult process requiring much effort. The article thus presents current international initiatives of the UN in this regard, as well as Higher Education initiatives, alliances and treaties in support of the process, and the objectives and activities of the network of cooperative links between universities that is now taking shape. Also the status of education for sustainable development (ESD) in higher education and existing ESD professional development opportunities for university educators is discussed. In this context, examples of good practice characterising the activity of the University Centre for Environmental Studies and Sustainable Development will serve as a case study.
Classification of labour markets in the Silesian Province (Poland)
Authors: Sitek Sławomir , Zuzańska-Żyśko Elżbieta 
Published: May 2015

Abstract
The purpose of this article is to try to classify labour markets of the Silesian Province on the municipality level. The proposed solution of grouping labour markets is based on three criteria: the size of the labour market measured by a number of jobs, the weight of the labour market expressed with a proportion of the number of jobs to the size of the population and that scale of the impact that is a proportion of the commuters to the ones leaving for work. As a result of the assumed criteria the municipalities have been grouped according to their meaning on the labour market, at the same time identifying weaker and stronger labour markets. The first stage of the research was to divide the municipal labour markets according to the number of the employed. As a result territorial units were grouped into 4 classes (small, medium, big and huge) including in total 9 subclasses. Then the municipal labour markets were sorted according to their weight and the scale of their impact, verifying their position in this way. The research pointed out that a lot of labour markets in the Katowice conurbation showed lower levels than the assumptions. Consequently, it suggests polarization of the labour market of this urban unit that is mainly focused on Katowice and Gliwice. Higher parameters than the assumed ones were reached by several municipalities that are small or medium labour markets. In many cases these are municipalities where there are huge businesses connected with coal mining. A beneficial situation was noted in the southern part of the province that has a relatively steady situation on the labour market. The presented classification of labour markets can support the management process of local and regional development.
The area preserving curve shortening flow with Neumann free boundary conditions
Authors: Mäder-Baumdicker Elena 
Published: May 2015

AbstractWe study the area preserving curve shortening flow with Neumann free boundary conditions outside of a convex domain in the Euclidean plane. Under certain conditions on the initial curve the flow does not develop any singularity, and it subconverges smoothly to an arc of a circle sitting outside of the given fixed domain and enclosing the same area as the initial curve.
Evaluating the Effect of Cutting Parameters on Machinability Issues in Hard Turning of AISI M2 Steel
Authors: Rahul Varma K. , Kaladhar M. 
Published: May 2015

AbstractOff-line process control improves the efficiency of the manufacturing process through the manipulation of process variables. The present study uses a combination of Taguchi orthogonal array and analysis of variance to experimentally investigate the effect of cutting parameters on profile roughness parameters, tool flank wear and power consumption during hard and dry turning of AISI M2 steel with cubic boron nitrite cutting insert. The results reveal that the surface roughness and flank wear are significantly affected by speed and feed. The power consumption of the machine is substantially affected by the feed and the depth of cut. Thereafter, optimum values of performance characteristics are predicted.
Further Frontiers in GIS: Extending Spatial Analysis to Textual Sources in Archaeology
Authors: Murrieta-Flores Patricia , Gregory Ian 
Published: May 2015

AbstractAlthough the use of Geographic Information Systems (GIS) has a long history in archaeology,
spatial technologies have been rarely used to analyse the content of textual collections. A newly
developed approach termed Geographic Text Analysis (GTA) is now allowing the semi-automated
exploration of large corpora incorporating a combination of Natural Language Processing techniques,
Corpus Linguistics, and GIS. In this article we explain the development of GTA, propose possible uses
of this methodology in the field of archaeology, and give a summary of the challenges that emerge from
this type of analysis.
Talking About Task Progress: Towards Integrating Task Planning and Dialog for Assistive Robotic Services
Authors: Broz Frank , Di Nuovo Alessandro , Belpaeme Tony , Cangelosi Angelo 
Published: May 2015

AbstractThe use of service robots to assist ageing people in their own homes has the potential to allow people to maintain their independence, increasing their health and quality of life. In many assistive applications, robots perform tasks on people’s behalf that they are unable or unwilling to monitor directly. It is important that users be given useful and appropriate information about task progress. People being assisted in homes and other realworld environments are likely be engaged in other activities while they wait for a service, so information should also be presented in an appropriate, nonintrusive manner. This paper presents a human-robot interaction experiment investigatingwhat type of feedback people prefer in verbal updates by a service robot about distributed assistive services. People found feedback about time until task completion more useful than feedback about events in task progress or no feedback. We also discuss future research directions that involve giving non-expert users more input into the task planning process when delays or failures occur that necessitate replanning or modifying goals.
Catalytic growth of multi-walled carbon nanotubes using NiFe2O4 nanoparticles and incorporation into epoxy matrix for enhanced mechanical properties
Authors: Javed Hassan , Islam Mohammad , Mahmood Nasir , Achour Amine , Hameed Asad , Khatri Nasrullah 
Published: May 2015

Abstract
Mechanical properties of multi-walled carbon nanotubes (CNT) reinforced epoxy nanocomposites, with and without any structural defect, were investigated using different weight percent values of pristine and covalently functionalized CNT. First, nickel ferrite (NiFe2O4) catalyst nanoparticles were prepared using the co-precipitate method followed by CNT growth via chemical vapor deposition, using acetylene as carbon feedstock. Through a combination of magnetic stirring and ultrasound vibration treatments in acetone, pristine, COOH-, or NH2-functionalized CNTs at 0.15, 0.60, 1.10 and 1.50 wt% were added to the Epon 828 epoxy. During each stage, extensive materials characterization was carried out using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR) and thermogravimetric analysis (TGA)/differential thermal analysis (DTA) techniques. Tensile testing of the specimens revealed an increase in the elastic modulus and tensile strength values with maximum increase registered in the case of nanocomposites made from 1.1 wt% CNT-NH2 (+73%) or CNT-COOH (67%) addition. The energy absorbed during impact testing also increased by 86% upon addition of 1.50 wt% CNT-NH2. The presence of a small notch in the nanocomposite specimens yielded superior mechanical properties to those of the neat epoxy. Such enhancement in the mechanical properties can be attributed to better CNT dispersion in the nanocomposites and good interfacial bonding, as confirmed from microstructural examination of the fractured surfaces.
Stereoisomers of platinum dimeric and oligomeric coordination complexes
Authors: Melník Milan , Mikuš Peter 
Published: May 2015

AbstractThe coordination chemistry of platinum covers a huge field as shown by a recent survey covering the structural parameter of almost 460 dimeric to oligomeric examples. Approximately 10% of these complexes exist as isomers and are summarized in this review. Included are distortion (87%) and cis-trans (13%) isomers. These are discussed in terms of the coordination about the platinum atom, and correlations are drawn among donor atom, bond distance, and interbond angles. Distortion isomers, differing by a degree of distortion in Pt-L and Pt-Pt distances and L-Pt-L angles, and some also by crystal classes, are the most common. Distortion isomers are also spread over a wider range of oxidation states of platinum [0, +1, +2 (most common), +3, +4, and even nonintegral (+2.14 and +2.375)] than cis-trans isomers (+2 and +3 only). Surprisingly, distortion isomerism is more common than the better-known cis-trans isomerism in the chemistry of platinum.
Dirac Bound States of the Killingbeck Potential Under External Magnetic Fields
Authors: Sharifi Zahra , Tajic Fateme , Hamzavi Majid , Ikhdair Sameer M. 
Published: May 2015

Abstract
The Killingbeck potential model is used to study the influence of the external magnetic and Aharanov–Bohm (AB) flux fields on the splitting of the Dirac energy levels in a 2+1 dimensions. The ground state energy eigenvalue and its corresponding two spinor components wave functions are investigated in the presence of the spin and pseudo-spin symmetric limit as well as external fields using the wave function ansatz method.
Optimized Ultrasharp Silicon Nanowire Geometries for Enhanced Field Ionization Properties
Authors: Polat Kazim Gurkan , Zhou Chen , Umar Ahmad , Islam M. Saif 
Published: May 2015

ABSTRACTSilicon (Si) nanowires offer great potential for field ionization (FI) applications due to well-established Si microfabrication methods combined with favorable ionizing properties of Si. Band bending of semiconductors under applied electric fields increases the FI probability, which is not possible with metal-based counterparts. While it has been demonstrated that scaling down the active material geometry can increase the FI efficiency, maximum electric field at the tip of a single nanowire decreases by quenching effect of nearby nanowires. In this work, optimization of Si nanowire geometries for improved FI efficiencies is explored.
Potential for attenuation of a stream in a subtropical region - Rio Grande do Sul - Brazil
Authors: Peresin Denise , Vieceli Nathalia Cristine , Bortolin Taison Anderson , Bavaresco Gabriela , Schneider Vania Elisabete 
Published: May 2015

The study and knowledge of the depuration capacity of the water resources, is necessary to preserve them. This study was objective identify the attenuation capacity of the Belo stream - Caxias do Sul - RS / Brazil, through the evaluation of physicochemical parameters, distance and slope between 4 points located along the stream. Were collected five samplings, bimonthly. The data were analyzed through descriptive statistics, one-way Analysis of Variance (ANOVA "one way"), Tukey’s test e Pearson’s correlation. The results showed that there is an improvement in the quality of water resources from upstream to downstream of the stream. However, despite the stream have a high attenuation potential, is necessary the development of control actions to input of industrial and domestic effluents, to prevent the ecological impairment of the same. http://dx.doi.org/10.18226/23185279.v3iss1p1
Preliminary results on performance of new ultra-fast static positioning module – POZGEO-2 in areas outside the ASG-EUPOS network
Authors: Paziewski Jacek , Krukowska Marta , Wielgosz Paweł 
Published: May 2015

Abstract
The presented preliminary research concerns the accuracy and reliability of new ultra-fast static positioning module - POZGEO-2 - in case of processing GPS data collected outside the ASG-EUPOS network. Such a case requires extrapolation of the network-derived atmospheric corrections which limits correction accuracy and, therefore, has adverse effect on the carrier phase ambiguity resolution. The presented processing tests are based on processing 5-minute long observing sessions and show that precise positioning can be supported up to 35 km from the ASG-EUPOS borders. This means that precise positioning with POZGEO-2 module can be assured for the most of the border areas of Poland.
Seeking realistic upper-bounds for internal reliability of systems with uncorrelated observations
Authors: Prószyński Witold 
Published: May 2015

Abstract
From the theory of reliability it follows that the greater the observational redundancy in a network, the higher is its level of internal reliability. However, taking into account physical nature of the measurement process one may notice that the planned additional observations may increase the number of potential gross errors in a network, not raising the internal reliability to the theoretically expected degree. Hence, it is necessary to set realistic limits for a sufficient number of observations in a network. An attempt to provide principles for finding such limits is undertaken in the present paper. An empirically obtained formula (Adamczewski 2003) called there the law of gross errors, determining the chances that a certain number of gross errors may occur in a network, was taken as a starting point in the analysis. With the aid of an auxiliary formula derived on the basis of the Gaussian law, the Adamczewski formula was modified to become an explicit function of the number of observations in a network. This made it possible to construct tools necessary for the analysis and finally, to formulate the guidelines for determining the upper-bounds for internal reliability indices. Since the Adamczewski formula was obtained for classical networks, the guidelines should be considered as an introductory proposal requiring verification with reference to modern measuring techniques.
Usefulness of Nonlinear Interpolation and Particle Filter in Zigbee Indoor Positioning
Authors: Zhang Xiang , Wu Helei , Uradziński Marcin 
Published: May 2015

Abstract
The key to fingerprint positioning algorithm is establishing effective fingerprint information database based on different reference nodes of received signal strength indicator (RSSI). Traditional method is to set the location area calibration multiple information sampling points, and collection of a large number sample data what is very time consuming. With Zigbee sensor networks as platform, considering the influence of positioning signal interference, we proposed an improved algorithm of getting virtual database based on polynomial interpolation, while the pre-estimated result was disposed by particle filter. Experimental result shows that this method can generate a quick, simple fine-grained localization information database, and improve the positioning accuracy at the same time.
Long-Term Degradation of Composites Exposed to Liquid Environments in Agriculture
Authors: Valášek P. 
Published: May 2015

Abstract
Polymeric particles composites with hard inorganic particles are abrasion resistant materials which can be used in the sphere of agriculture - e.g. for functional areas in renovation or as resistant layers. Silicon carbide waste particles were used in the present experiment, replacing the primary filler with waste without significant changes in the mechanical properties. The present paper describes the effect of immersion of polymeric particles composites with epoxy matrix in liquids on selected mechanical properties. Overall, it explains the change of hardness and resistance of abrasive wear, a typical kind of wear in the sphere of agriculture.
Means of Staff Number Reduction and Outplacement
Authors: Urbancová H. 
Published: May 2015

Abstract
The paper focuses on staff number reducing in Czech organizations because it is an important issue due to adaptation to changing economic conditions and ongoing financial crisis. The number of organizations reducing their staff number goes up in all sectors of economy including agriculture and the problem is associated with financial costs. The objective is to present the ways of staff number reduction in Czech organizations and outplacement for the laid-off workers and a partial objective is to compare the results with those in the Slovak Republic. Moreover, the paper discusses the recommendation in the sphere of knowledge continuity for organizations and it also examines the cost level of employees’ turnover. The results were obtained by implementing quantitative research with the help of questionnaire data collection (n = 109) which were analyzed by the tools of descriptive statistics. Results show that 52.3% of organizations have reduced their staff number. However, outplacement was used by only 10.1% of the addressed Czech organizations, out of which 28.6% were agricultural.
Comparative Study between Bridging External Fixation vs Volar Plating (Ellis-T Plate) for Comminuted Fracture of the Distal End Radius
Authors: Gupta SK Venkatesh , Mandapalli Pradeep 
Published: May 2015

ABSTRACTBackgroundThe purpose of this study is to compare between the open reduction and internal fixation (ORIF) using a volar plate and external fixation with K-wire fixation for the treatment of unstable distal radius fractures.Materials and methodsThis investigation was designed to prospectively evaluate the outcomes of similar distal radius fracture patterns treated by ORIF with volar platingvsclosed reduction and pinning with external fixation.ResultsOpen reduction and internal fixation with volar locking plate group has overall decrease incidence of complications significantly less radial shortening and significantly greater postoperative wrist motion when compared to external fixation.ConclusionUse of volar locking plate resulted in a faster recovery of function compared with external fixation. Use of volar locking plate resulted in better anatomical function and grip strength. However, no functional advantage was demonstrated at or beyond 12 weeks or 1 year.Gupta SKV, Mandapalli P. Comparative Study between Bridging External FixationvsVolar Plating (Ellis-T Plate) for Comminuted Fracture of the Distal End Radius. The Duke Orthop J 2015;5(1):20-24.