bluuebunny/crossref_metadata_2025 huggingface dataset:
Determining the Degree of Removal of Copper From Slag
Authors: Bydałek A.W. , Migas P. , Wołczyński W. , Biernat S. , Bydałek A. , Jasińska K. , Kwapisiński P.
Published: December 2016

The scope of work included the launch of the process of refining slag suspension in a gas oven using a variety of technological additives. After the refining process (in the context of copper recovery), an assessment of the effect of selected reagents at the level of the slag refining suspension (in terms of copper recovery). Method sieve separated from the slag waste fraction of metallic, iron - silicate and powdery waste. Comparison of these photographs macroscopic allowed us to evaluate the most advantageous method of separating metallic fraction from the slag. After applying the sample A (with KF2 + NaCl) we note that in some parts of the slag are still large amounts of metallic fraction. The fraction of slag in a large majority of the elements has the same size of 1 mm, and a larger portion of the slag, the size of which is from 2 to 6 mm. Definitely the best way is to remove the copper by means of the component B (with NaCl) and D (with KF2). However, as a result of removing the copper by means of component C (with CaO) were also obtained a relatively large number of tiny droplets of copper, which was problematic during segregation. In both cases we were able to separate the two fractions in a fast and simple manner.
Elimination of Chunky Graphite in Castings with Large Thermal Points
Authors: Futas P.
Published: December 2016

The presence of the chunky graphite is unwanted in the cast iron with the spheroidal graphite for this significantly lowers the properties of the ductile iron. This shape of the graphite is formed as the result of the slow cooling rate of the castings with large thermal point and also due to the presence of the elements which suppress the formation of the spheroidal graphite and support formation of the chunky graphite. The spheroidal graphite present in the ductile iron assures the excellent mechanical properties, while the chunky graphite significantly reduces those properties of the ductile iron. Therefore it is of importance to assume conditions under which prevented is the formation of the chunky graphite. The casts were carried out under the conditions of the regular operation of the foundry and tested were various types of modifiers and inoculators and also pre-inoculators containing the elements suppressing the formation of the chunky graphite (Al, Sb a Ba). Applied were also the chromium breaker core to suppress the formation chunky graphite which was present in the structure in the places after the feeders elimination. As whole, executed were eight casts with various types of the modifiers and inoculators.
Enhancement of Heat Transfer in PCM by Cellular Zn-Al Structure
Authors: Naplocha K. , Koniuszewska A. , Lichota J. , Kaczmar J.W.
Published: December 2016

Development of open cellular metal foam technology based on investment casting applying the polyurethane pattern is discussed. Technological process comprises preparing of the ceramic mold applying PUR foam as the pattern, firing of the mold, pouring of the liquid Zn-Al alloy into the mold and washing out of the ceramic material from cellular casting. Critical parameters such as the temperature of mold and poured metal, design of gating system affected by metalostatic pressure allowed to produce castings with cellular structure characterized by the open porosity.

Metal cellular foams with the open porosity embedded in phase change material (PCM) enhance heat transfer and reduce time operations in energy storage systems. Charging and discharging were performed at the laboratory accumulator by heating and cooling with flowing water characterized by the temperatures of 97-100°C. Temperature measurements were collected from 7 different thermocouples located in the accumulator. In relation to the tests with pure paraffin, embedding of the metal Zn-Al cellular foam in paraffin significantly decreases temperature gradients and melting time of paraffin applied as PCM characterized by the low thermal conductivity. Similarly, reduction of discharging time by this method improves the efficiency of thermal energy storage system applied in solar power plants or for the systems of energy efficient buildings.
Effect of T6 Heat Treatment Parameters on Technological Quality of the AlSi7Mg Alloy
Authors: Pezda J. , Jarco A.
Published: December 2016

Very well-known advantages of aluminum alloys, such as low mass, good mechanical properties, corrosion resistance, machining-ability, high recycling potential and low cost are considered as a driving force for their development, i.e. implementation in new applications as early as in stage of structural design, as well as in development of new technological solutions. Mechanical and technological properties of the castings made from the 3xx.x group of alloys depend mainly on correctly performed processes of melting and casting, design of a mould and cast element, and a possible heat treatment.

The subject-matter of this paper is elaboration of a diagrams and dependencies between parameters of dispersion hardening (temperatures and times of solutioning and ageing treatments) and mechanical properties obtained after heat treatment of the 356.0 (EN AC AlSi7Mg) alloy, enabling full control of dispersion hardening process to programming and obtaining a certain technological quality of the alloy in terms of its mechanical properties after performed heat treatments. Obtained results of the investigations have enabled obtainment of a dependencies depicting effect of parameters of the solutioning and ageing treatments on the mechanical properties (Rm, A5 and KC impact strength) of the investigated alloy. Spatial diagrams elaborated on the basis of these dependencies enable us to determine tendencies of changes of the mechanical properties of the 356.0 alloy in complete analyzed range of temperature and duration of the solutioning and ageing operations.
Assessment of Durability of the Toothed Segment Based on FEM Analysis and Low Fatigue Cycle Test
Authors: Piekło J. , Maj M. , Żuczek R. , Pysz S.
Published: December 2016

The development of a novel design for the toothed segment of drive transmission in longwall shearer is expected to significantly reduce the cost of individual components of the feed system and the related work of repair and renovations, increasing at the same time the safety of mine repair teams.

The conducted experimental and numerical analysis of the state of stress and strain in the innovative design of the toothed segment has enabled estimating the maximum effort of the developed structure. Based on the results of fundamental mechanical studies of the cast L20HGSNM steel and fatigue tests combined with the numerical stress/strain analysis, the fatigue life curve was plotted for the examined casting of the rack.
Application of Time-Series Analysis for Predicting Defects in Continuous Steel Casting Process
Authors: Rodziewicz A. , Perzyk M.
Published: December 2016

The purpose of this paper was testing suitability of the time-series analysis for quality control of the continuous steel casting process in production conditions. The analysis was carried out on industrial data collected in one of Polish steel plants. The production data concerned defective fractions of billets obtained in the process. The procedure of the industrial data preparation is presented. The computations for the time-series analysis were carried out in two ways, both using the authors’ own software. The first one, applied to the real numbers type of the data has a wide range of capabilities, including not only prediction of the future values but also detection of important periodicity in data. In the second approach the data were assumed in a binary (categorical) form, i.e. the every heat(melt) was labeled as ‘Good’ or ‘Defective’. The naïve Bayesian classifier was used for predicting the successive values. The most interesting results of the analysis include good prediction accuracies obtained by both methodologies, the crucial influence of the last preceding point on the predicted result for the real data time-series analysis as well as obtaining an information about the type of misclassification for binary data. The possibility of prediction of the future values can be used by engineering or operational staff with an expert knowledge to decrease fraction of defective products by taking appropriate action when the forthcoming period is identified as critical.
The Cracking Mechanism of Ferritic-Austenitic Cast Steel
Authors: Stradomski G.
Published: December 2016

In the high-alloy, ferritic - austenitic (duplex) stainless steels high tendency to cracking, mainly hot-is induced by micro segregation processes and change of crystallization mechanism in its final stage. The article is a continuation of the problems presented in earlier papers [1 - 4]. In the range of high temperature cracking appear one mechanism a decohesion - intergranular however, depending on the chemical composition of the steel, various structural factors decide of the occurrence of hot cracking. The low-carbon and low-alloy cast steel casting hot cracking cause are type II sulphide, in high carbon tool cast steel secondary cementite mesh and / or ledeburite segregated at the grain solidified grains boundaries, in the case of Hadfield steel phosphorus - carbide eutectic, which carrier is iron-manganese and low solubility of phosphorus in high manganese matrix. In duplex cast steel the additional factor increasing the risk of cracking it is very “rich” chemical composition and related with it processes of precipitation of many secondary phases.
The Effect of a Thin-Wall Casting Mould Cavity Filling Conditions on the Casting Surface Quality
Authors: Trytek A. , Orłowicz A.W. , Tupaj M. , Mróz M. , Markowska O. , Bąk G. , Abram T.
Published: December 2016

The paper presents results of metallographic examination of faults occurring in the course of founding thin-walled cast-iron castings in furan resin sand molds. A non-conformance of the scab type was Observed on surface of the casting as well as sand buckles and cold shots. Studied the chemical composition by means of a scanning electron microscope in a region of casting defects: microanalysis point and microanalysis surface. Around the observed defects discloses high concentration of oxides of iron, manganese and silicon. A computer simulation of the casting process has been carried out with the objective to establish the cause of occurrence of cold shots on casting surface. The simulation was carried out with the use of NovaFlow & Solid program. We analyzed the flowing metal in the mold cavity. The main reason for the occurrence of casting defects on the surface of the casting was gating system, which caused turbulent flow of metal with a distinctive splash stream of liquid alloy.
Enhancing of Winter Wheat Productivity by the Introduction of Field Pea into Crop Rotation
Authors: Babulicová Mária
Published: December 2016

The aim of our study was to find out the influence of different preceding crops and weather in particular years on the production ability of winter wheat in crop rotation with 80% share of cereals. The long-term field trial with 40, 60 and 80% share of cereals and two levels of fertilisation (H1 mineral fertilisation + organic manure Veget®; H2 mineral fertilisation only) was carried out in the very warm and dry area of continental climate on Luvi-Haplic Chernozem. In crop rotation with 80% share of cereals, winter wheat was sown after two preceding crops: pea and winter barley. In the years 2013–2015, the weight of 1,000 grains, bulk density, share of grains over 2.8 + 2.5 mm sieve, grain yield and straw yield were investigated. In crop rotation with 80% share of cereals, the significantly higher grain yield of winter wheat was recorded after preceding crop of field pea (6.18 t/ha) by comparison with winter barley as preceding crop (5.19 t/ha). The statistically significantly higher straw yield of winter wheat was observed after field pea (8.38 t/ha)in comparison to winter barley (7.29 t/ha). The weight of 1,000 grains, bulk density, share of grains over 2.8 + 2.5 mm sieve were statistically significantly higher after field pea in comparison to winter barley. The winter wheat grain yield can be increased by the preceding crop pea and the combination of mineral and organic fertilisation in substantial degree.
Can DIPPR Database be Used for an Estimation of the Speed of Sound? A Case Study of Liquid Hydrocarbons
Authors: Postnikov Eugene B.
Published: December 2016

The paper analyses a possibility of utilising the information which is contained in DIPPR database for a calculation of the speed of sound, which is absent there. As an example, liquid hydrocarbons are considered: n-hexane, 1-hexene, cyclohexane, cyclohexene, benzene, and 1-hexanols, as well as representatives of n-alkanes with various hydrocarbon chain lengths. It is shown that the Brelvi-O’Connell correlation for the reduced bulk modulus, supplied with the correlations for the internal pressure at the normal boiling temperature, results in the values having accuracy comparable with other DIPPR data for the region below the boiling point bounded by the values of the reduced density around ρr ≈ 3.5. The source of errors originated from the Brelvi-O’Connell correlation for larger reduced densities is discussed.
Simultaneous Analysis of Noise and Vibration of Machines in Vibroacoustic Diagnostics
Authors: Dąbrowski Zbigniew , Dziurdź Jacek
Published: December 2016

The article is a continuation of the authors’ elaboration (Dąbrowski, Dziurdź, 2016). The aim of this continuation is to prove that a proposed way of modelling and using the coherent analysis to filter nonlinear disturbances is a useful technique in vibroacoustic diagnostics. The thesis was proved by solving the task of diagnosing the damage of the gear of the car gearbox on the basis of the measurement of mechanical vibrations and the noise in the engine chamber.
Identification of Acoustic Emission Signals Originating from the Core Magnetization of Power Oil Transformer
Authors: Olszewska Aneta , Witos Franciszek
Published: December 2016

In this paper, the properties of AE signals originating from phenomena occurring during magnetization of ferromagnetic materials which are used to construct power transformer cores are presented. The AE signals in a selected power oil transformer were recorded and analyzed. The analysis included, i.e., time, frequency, and time-frequency analyses, calculations of amplitude distributions of the signals and defined AE descriptors, determination of the descriptor map on the side walls of transformers, as well as a detailed analysis of selected part of the signals.

The maps of descriptors were analyzed in the frequency bands of 20–70 kHz, 70–100 kHz, and 100–200 kHz. The analysis of the properties of the signals was performed in time and frequency domains. Based on the analysis, there were identified the AE signals originating from the phenomena occurring during the core magnetization of a power oil transformer. To identify those phenomena, the maps of the ADC descriptor calculated in the band of 20–70 kHz when selecting the measurement points in which there were no AE sources from partial discharges were used.

An analysis of magnetoacoustic emission signals in the bands of 70–100 kHz and 100–200 kHz was also performed. The analysis of the signal properties in such an extended frequency range allowed determining the properties of the magnetoacoustic signals coming from core sheets of power oil transformers.
Complex Demodulation in Monitoring Earth Rotation by VLBI: Testing the Algorithm by Analysis of Long Periodic EOP Components
Authors: Wielgosz A. , Brzeziński A. , Böhm S.
Published: December 2016

The complex demodulation (CD) algorithm is an efficient tool for extracting the diurnal and subdiurnal components of Earth rotation from the routine VLBI observations (Brzeziński, 2012). This algorithm was implemented by Böhm et al (2012b) into a dedicated version of the VLBI analysis software VieVs. The authors processed around 3700 geodetic 24-hour observing sessions in 1984.0-2010.5 and estimated simultaneously the time series of the long period components as well as diurnal, semidiurnal, terdiurnal and quarterdiurnal components of polar motion (PM) and universal time UT1. This paper describes the tests of the CD algorithm by checking consistency of the low frequency components of PM and UT1 estimated by VieVS CD and those from the IERS and IVS combined solutions. Moreover, the retrograde diurnal component of PM demodulated from VLBI observations has been compared to the celestial pole offsets series included in the IERS and IVS solutions. We found for all three components a good agreement of the results based on the CD approach and those based on the standard parameterization recommended by the IERS Conventions (IERS, 2010) and applied by the IERS and IVS. We conclude that an application of the CD parameterization in VLBI data analysis does not change those components of EOP which are included in the standard adjustment, while enabling simultaneous estimation of the high frequency components from the routine VLBI observations. Moreover, we deem that the CD algorithm can also be implemented in analysis of other space geodetic observations, like GNSS or SLR, enabling retrieval of subdiurnal signals in EOP from the past data.
The philosophy of fire safety engineering in the shaping of civil engineering development
Authors: Węgrzyński W. , Sulik P.
Published: December 2016

This paper presents modern application of fire safety engineering (FSE) in the shaping of civil engineering development. Presented scientific achievements of FSE become tools used in typical modern engineering workflow. Experience gained through successful implementations of these solutions is then further crafted into prescriptive laws that shape future fire safety. This diffusion of knowledge is limited by law requirements themselves, technical limitations, and yet unresolved challenges that are still being worked on by the researchers in this field. This paper aims to present the achievements of the FSE discipline that may and should be used by civil engineers and other participants of the building process. Explanations given for the choices of fire safety engineers allow a better understanding of their gravity by representatives of other engineering branches. That way it is possible to build empathy between different engineering disciplines, which may significantly improve both the building design process and safety of the buildings itself. The chosen framework of this paper is Appendix A to EU Construction Products Regulation defining basic goals for a fire safe building, with a possible application of FSE given for each of these goals. The current framework of performance-based FSE is presented in relation to the Polish legal system, with recommendations on how to improve both FSE and civil engineering in the future.
Determining equivalent performance for frost durability of concrete containing different amounts of ground granulated blast furnace slag
Authors: Wawrzeńczyk J. , Juszczak T. , Molendowska A.
Published: December 2016

This paper deals with the issues pertinent to the design of frost-resistant concretes in exposure class XF3 (high water saturation) when the concretes are made with cements containing ground granulated blast furnace slag (ggbs). The testing programme covered four series of non-air entrained concrete made with cements CEM I, CEM II/A-S, CEM II/B-S and CEM III/A containing 0%, 13%, 28% and 53% ggbs respectively, and two non-air entrained concrete series with the binder made from CEM I and 0 to 55% ggbs. The water-binder (w/b) ratio ranged from 0.25 to 0.55.

Frost durability testing was performed using a modified ASTM C666A procedure to determine changes in mass (dm) and beam length (dL). The relationships occurring between the w/b ratio and ggbs content in the binder and the length change (dL) of the specimens were described using curvilinear regression functions, through the analysis of artificial neural networks.

Slag-content-dependent critical values of the w/b ratio were determined taking the length change dL = 1.3 mm to be the criterion for the resistance to internal cracking. In the authors’ view, this approach can be a good method for checking equivalent performance of concretes made with cements containing mineral additions.
Chemical interaction between polymer and cement in polymer-cement concrete
Authors: Wang R. , Li J. , Zhang T. , Czarnecki L.
Published: December 2016

Polymers are widely used in cement mortar and concrete modification due to their significant role in improving the overall performance of cement-based materials. Their physical interaction is well-accepted, while less attention is given to chemical interaction between the polymers and cement. Through a review of prior arts, chemical interactions are discussed and summarized in this paper. Various chemical interactions may take place between cement and different types of polymers. Understanding these chemical interactions will play an important role in clarifying the relationship between microstructure and macrostructure of polymer-modified cementitious materials. Authors expressed and proved the conviction that the organic-inorganic (Polymer-Portland cement) composite with some components chemically bonded, in parallel to the physical interaction, will be the next stage in concrete technology progress.
Fuzzy logic in decision support system as a simple Human/Internet of Things interface for shunt active power filter
Authors: Jasiński M. , Majtczak P. , Malinowski A.
Published: December 2016

This paper introduces a fuzzy logic (FL) based decision support system (DSS) for a three-phase bidirectional AC-DC grid converter, working in a modern grid-like smart grid or smart industry. It is assumed that the appliances connected to that grid interact as in the Internet of Things (IoT) or like in the Internet of Everything (IoE) i.e. with a human being located in the chain of data flow. A power electronics AC-DC converter, operating as a shunt active power filter (SAPF) is selected for the case study. A harmonics reduction algorithm is presented as an implementation sample of the DSS. The operation of the SAPF is described and analysed. Experimental results showing the tuning process and operation of the laboratory model are also presented and discussed. Finally, it is shown that the DSS is an elegant and intuitive interface, which can simplify a human’s or machine’s decision-making process. Thanks to the DSS, the meaning of transferred data is translated into linguistic variables that can be understood by non-experts. Hence, it is expected that the amount of transferred data in the smart grid and in the IoE would be reduced. But in the same time, the high quality of the controlled process is retained, as shown by the example of a conventional SAPF.
Hyper-coherence and increased energy of gamma oscillations in patient with first onset schizophrenia and cerebral white matter damage
Authors: Jonak Kamil , Krukow Paweł , Karakuła-Juchnowicz Hanna
Published: December 2016

Background: According to current knowledge, gamma frequency is closely related to the functioning of neural networks underlying the basic activity of the brain and mind. Disorders in mechanisms synchronizing brain activity observed in patients diagnosed with schizophrenia are at the roots of neurocognitive disorders and psychopathological symptoms of the disease. Synchronization mechanisms are also related to the structure and functional effectiveness of the white matter. So far, not many analysis has been conducted concerning changes in the image of high frequency in patients with comorbid schizophrenia and white matter damage. The aim of this research was to present specific features of gamma waves in subjects with different psychiatric diagnoses and condition of brain structure.

Methods: Quantitative analysis of an EEG record registered from a patient diagnosed with schizophrenia and comorbid white matter hyperintensities (SCH+WM), a patient with an identical diagnosis but without structural brain changes present in the MRI (SCH-WM) of a healthy control (HC). The range of gamma waves has been obtained by using analogue filters. In order to obtain precise analysis, gamma frequencies have been divided into three bands: 30-50Hz, 50-70Hz, 70-100Hz. Matching Pursuit algorithm has been used for signal analysis enabling assessing the changes in signal energy. Synchronization effectiveness of particular areas of the brain was measured with the aid of coherence value for selected pairs of electrodes.

Results: The electrophysiological signals recorded for the SCH+WM patient showed the highest signal energy level identified for all the analyzed bands compared to the results obtained for the same pairs of electrodes of the other subjects. Coherence results revealed hipercompensation for the SCH+WM patient and her level differed substantially compared to the results of the other subjects.

Conclusions: The coexistence of schizophrenia with white matter damage can significantly disturb parameters of neural activity with high frequencies. The paper discusses possible explanations for the obtained results.
Psychopathological symptoms in children and adolescents diagnosed with autism spectrum disorders with comorbid epilepsy - case report
Authors: Brudkowska Żaneta , Jusiak Katarzyna , Próchnicki Michał , Gołębiowska Beata , Morylowska-Topolska Justyna , Dziwota Ewelina , Pawełczak Paweł , Karakuła-Juchnowicz Hanna
Published: December 2016

The number of diagnoses of Autism Spectrum Disorders (ASD) is on the rise, which encourages the search for their causes spurs researchers to study co-occurrence of ASD with other diseases and disorders. This study aims at highlighting the importance of the clinical problem of autism spectrum disorders and its comorbidity with epilepsy. This is one of the most common co-morbidities happening to children.

Regarding the psychopathological symptoms, it needs emphasizing that both in case of an isolated ASD and epilepsy itself, the accompanying psychiatric symptoms are confirmed. The research conducted so far also shows that in the course of epilepsy in the child / youth, mental health problems are often revealed, particularly depression and anxiety disorders. Episodes of depression and anxiety disorders are also mentioned as the most common comorbid psychopathological symptoms associated with ASD. An accurate and rapid diagnosis of epilepsy can improve the functioning of the child in the family environment and can improve communication skills. It is also important for the overall intellectual and psychological development. Making a correct diagnosis of the problem is equally crucial as choosing the right methods of medical and psychological care. Moreover,, it determines the early use of adequate, safe and effective forms of treatment.
Omega – 3 fatty acids in schizophrenia – part I: importance in the pathophysiology of schizophrenia
Authors: Róg Joanna , Karakuła-Juchnowicz Hanna
Published: December 2016

Despite the increasing offer of antipsychotic drugs, the effectiveness of pharmacotherapy in schizophrenia is still unsatisfactory. Drug resistance, lack of complete remission and the increasing risk of metabolic complications are the reasons why the new forms of therapy in schizophrenia among which unsaturated essential fatty acids omega 3 (EFAs ω-3) affecting the proper functioning of nervous system, are mentioned, are being looked for.

Fatty acids represent 50-60% of the dry weight of the brain and diet is one of the factors that influence the value of each of the fat fractions in the neuron membranes. Patients with schizophrenia tend to have irregular nutritional status concerning essential fatty acids ω-3, which might result from metabolic disorders or irregular consumption of fatty acids.

Apart from being a review of the literature on this subject, this very paper characterizes essential fatty acids ω-3, their metabolism, the most important sources in the diet and the opinions of experts in the field about the recommended intake. It pays attention to the role of essential fatty acids in both the structure and functioning of the central nervous system is, as well as their role in the pathophysiology of schizophrenia, with particular emphasis on the membrane concept by David Horrobin. The assessment of the errors in consumption and metabolism of essential fatty acids are described as well.

The evidence was found both in epidemiological and modeling studies. It supports the participation of EFAs in etiopathogenesis and pathophysiology of schizophrenia. Further research is needed, both observational and interventional, as to the role of essential fatty acids ω-3 in the functioning of the CNS as well as the development and course of schizophrenia.
New Inequalities of CBS-Type for Power Series of Complex Numbers
Authors: Dragomir S.S.
Published: December 2016

Let

$f(\lambda ) = \sum\nolimits_{n = 0}^\infty {a_n \lambda ^n } $

be a function defined by power series with complex coefficients and convergent on the open disk D(0, R) ⊂ ℂ, R > 0. In this paper we show amongst other that, if α, z ∈ ℂ are such that |α|, |α| |z|2 < R, then

$$\left| {f(\alpha )f(\alpha z^2 ) - f^2 (\alpha z)} \right| \le f_A \left( {\left| \alpha \right|} \right) f_A \left( {\left| \alpha \right|\left| z \right|^2 } \right) - \left| {f_A (\left| \alpha \right|z)} \right|^2 .$$

where

$f_A (z) = \sum\nolimits_{n = 0}^\infty {\left| {\alpha _n } \right|z^n } $

.

Applications for some fundamental functions defined by power series are also provided.
A New Class of Laguerre-based Generalized Apostol Polynomials
Authors: Khan N.U. , Usman T.
Published: December 2016

In this paper, we introduce a unified family of Laguerre-based Apostol Bernoulli, Euler and Genocchi polynomials and derive some implicit summation formulae and general symmetry identities arising from different analytical means and applying generating functions. The result extend some known summations and identities of generalized Bernoulli, Euler and Genocchi numbers and polynomials.
On Wijsman ℐ2-Lacunary Statistical Convergence for Double Set Sequences
Authors: Kişi Ömer
Published: December 2016

The aim of present work is to present some inclusion relations between the concepts of Wijsman ℐ2–lacunary statistical convergence and Wijsman strongly ℐ2–lacunary convergence for double sequences of sets. Also we study the concepts of Wijsman ℐ2–statistical convergence, Wijsman ℐ2– lacunary statistical convergence double sequences of sets and investigate the relationship among them.
Bürgergesellschaft nach der Willkommenskultur: Chancen nutzen, Haltung zeigen
Authors: Leseberg Nina , Quednau Tobias
Published: December 2016

Die Autoren fassen in ihrem Beitrag die wichtigsten Ergebnisse der Diskussionen des 11. Forums Bürgergesellschaft zusammen, das unter dem Titel „Bewährungsprobe für die Bürgergesellschaft – Wie kann Integration vor Ort gelingen?“ der Frage nachging, wie freiwilliges Engagement Motor für Integration und Zusammenhalt sein kann ohne dass es zu einer Überforderung der Zivilgesellschaft kommt. Es geht darum, Integration als Chance zu nutzen, die neue Offenheit für Kooperationen vor Ort zu nutzen und nicht zuletzt darum, dass die Verteidigung von Werten wie Offenheit und Toleranz an Bedeutung für die Bürgergesellschaft gewinnt.
Die Flüchtlingskrise als Renaissance der Bürgergesellschaft
Authors: Beck Sebastian
Published: December 2016

In der Flüchtlingskrise hat sich gezeigt, dass Kommunen sehr viel offener für die Kooperation mit zivilgesellschaftlichen Akteuren waren als zuvor. Das bietet die Chance, im Anschluss daran neue Formen der lokalen Governance aufzubauen. Wie dies gelingen kann, zeigt Sebastian Beck in seinem Beitrag.
Trans*-Community-Zeitschriften und Pamphlete als Bildungsort – Das Lili-Elbe-Archiv für Inter, Trans, Queer History
Authors: Trauthwein Niki
Published: December 2016

Transgender-Community-Zeitschriften und -Journale wurden bisher kaum wissenschaftlich untersucht. Der folgende Artikel zeigt, dass solche Magazine und Zeitschriften von Bedeutung für die Erforschung von Bildung in geschlechtervarianten Bewegungen sein können. Er fragt nach der Beziehung zwischen Formen der Bildung und Kommunikation in den ersten deutschsprachigen Magazinen nach dem zweiten Weltkrieg und untersucht die Schnittpunkte zwischen deren Inhalten und der öffentlichen Meinung.
Vegetation recovery in fire-damaged forests: a case study at the southern boundary of the taiga zone
Authors: Khapugin Anatoliy A. , Vargot Elena V. , Chugunov Gennadiy G.
Published: December 2016

Wildfire is regarded as important environmental factor determining the vegetation of the Earth. We analyzed 11 plots at different types of forest affected by fire at the southern boundary of the taiga zone. These differ in structure of the forest stand and herb-shrub layer. Investigated factors included edaphic (moisture, pH, nitrogen) and climatic (light, temperature, continentality) characteristics. Also, projective cover of Epilobium angustifolium L. and undergrowth of secondary growth trees (including forest stand survived after fire influence) were studied. Multivariate data analysis revealed that the rate and character of the vegetation recovery was depended on the ratio of environmental factors and on the species composition of herb-shrub layer. No significant differences were found in Ellenberg’s indicator values between different years of study. All tested forest habitats were distinguished into three main groups: Group I includes broadleaf forests with the forest stand survived after fire influence, Group II includes spruce and birch forests deprived the forest stand due to fire impact, Group III includes more or less dry pine-dominated forests with the forest stand gradually died after fire influence. Two marshy plots have prerequisites to their allocation to a separate group close to the oligotrophic bog forests.
Estimation of above-ground biomass in forest stands from regression on their basal area and height
Authors: Lang Mait , Lilleleht Ando , Neumann Mathias , Bronisz Karol , Rolim Samir G. , Seedre Meelis , Uri Veiko , Kiviste Andres
Published: December 2016

A generic regression model for above-ground biomass of forest stands was constructed based on published data (R2= 0.88,RSE= 32.8 t/ha). The model was used 1) to verify two allometric regression models of trees from Scandinavia applied to repeated measurements of 275 sample plots from database of Estonian Network of Forest Research (FGN) in Estonia, 2) to analyse impact of between-tree competition on biomass, and 3) compare biomass estimates made with different European biomass models applied on standardized forest structures. The model was verified with biomass measurements from hemiboreal and tropical forests. The analysis of two Scandinavian models showed that older allometric regression models may give biased estimates due to changed growth conditions. More biomass can be stored in forest stands where competition between trees is stronger. The tree biomass calculation methods used in different countries have also substantial influence on the estimates at stand-level. A common database of forest biomass measurements from Europe in similar to pan-tropical tree measurement data may be helpful to harmonise carbon accounting methods.
Interactive map of refugee movement in Europe
Authors: Calka Beata , Cahan Bruce
Published: December 2016

Considering the recent mass movement of people fleeing war and oppression, an analysis of changes in migration, in particular an analysis of the final destination refugees choose, seems to be of utmost importance. Many international organisations like UNHCR (the United Nations High Commissioner for Refugees) or EuroStat gather and provide information on the number of refugees and the routes they follow. What is also needed to study the state of affairs closely is a visual form presenting the rapidly changing situation. An analysis of the problem together with up-to-date statistical data presented in the visual form of a map is essential. This article describes methods of preparing such interactive maps displaying movement of refugees in European Union countries. Those maps would show changes taking place throughout recent years but also the dynamics of the development of the refugee crisis in Europe. The ArcGIS software was applied to make the map accessible on the Internet. Additionally, online sources and newspaper articles were used to present the movement of migrants. The interactive map makes it possible to watch spatial data with an opportunity to navigate within the map window. Because of that it is a clear and convenient tool to visualise such processes as refugee migration in Europe.
The combined geodetic network adjusted on the reference ellipsoid – a comparison of three functional models for GNSS observations
Authors: Kadaj Roman
Published: December 2016

The adjustment problem of the so-called combined (hybrid, integrated) network created with GNSS vectors and terrestrial observations has been the subject of many theoretical and applied works. The network adjustment in various mathematical spaces was considered: in the Cartesian geocentric system on a reference ellipsoid and on a mapping plane. For practical reasons, it often takes a geodetic coordinate system associated with the reference ellipsoid. In this case, the Cartesian GNSS vectors are converted, for example, into geodesic parameters (azimuth and length) on the ellipsoid, but the simple form of converted pseudo-observations are the direct differences of the geodetic coordinates. Unfortunately, such an approach may be essentially distorted by a systematic error resulting from the position error of the GNSS vector, before its projection on the ellipsoid surface. In this paper, an analysis of the impact of this error on the determined measures of geometric ellipsoid elements, including the differences of geodetic coordinates or geodesic parameters is presented. Assuming that the adjustment of a combined network on the ellipsoid shows that the optimal functional approach in relation to the satellite observation, is to create the observational equations directly for the original GNSS Cartesian vector components, writing them directly as a function of the geodetic coordinates (in numerical applications, we use the linearized forms of observational equations with explicitly specified coefficients). While retaining the original character of the Cartesian vector, one avoids any systematic errors that may occur in the conversion of the original GNSS vectors to ellipsoid elements, for example the vector of the geodesic parameters. The problem is theoretically developed and numerically tested. An example of the adjustment of a subnet loaded from the database of reference stations of the ASG-EUPOS system was considered for the preferred functional model of the GNSS observations.
Multimedia integration of cartographic source materials for researching and presenting phenomena from economic history
Authors: Lorek Dariusz
Published: December 2016

The article presents a framework for integrating historical sources with elements of the geographical space recorded in unique cartographic materials. The aim of the project was to elaborate a method of integrating spatial data sources that would facilitate studying and presenting the phenomena of economic history. The proposed methodology for multimedia integration of old materials made it possible to demonstrate the successive stages of the transformation which was characteristic of the 19th-century space. The point of reference for this process of integrating information was topographic maps from the first half of the 19th century, while the research area comprised the castle complex in Kórnik together with the small town – the pre-industrial landscape in Wielkopolska (Greater Poland).

On the basis of map and plan transformation, graphic processing of the scans of old drawings, texture mapping of the facades of historic buildings, and a 360° panorama, the source material collected was integrated. The final product was a few-minute-long video, composed of nine sequences. It captures the changing form of the castle building together with its facades, the castle park, and its further topographic and urban surroundings, since the beginning of the 19th century till the present day.

For a topographic map sheet dating back to the first half of the 19th century, in which the hachuring method had been used to present land relief, a terrain model was generated. The transition from parallel to bird’s-eye-view perspective served to demonstrate the distinctive character of the pre-industrial landscape.
Single-port access for Pressurized IntraPeritoneal Aerosol Chemotherapy (PIPAC): technique, feasibility and safety
Authors: Vaira Marco , Robella Manuela , Borsano Alice , De Simone Michele
Published: December 2016

Background

Pressurized IntraPeritoneal Aerosol Chemotherapy (PIPAC) is a drug delivery system for treatment of peritoneal metastasis (PM). A limitation of this technique is the non-access rate (10–15 %) due to peritoneal adhesions. The aim of the study was to assess feasibility and safety of the single-port access technique for PIPAC.

Methods

Single-center, pilot study. Case series, retrospective analysis on 17 patients with PM of various origin treated with intraperitoneal cisplatin, doxorubicin and/or oxaliplatin administered as PIPAC. Single-port access was attempted in all patients by minilaparotomy.

Results

Twenty-nine PIPAC procedures were performed. Nine patients were subjected to 1 PIPAC, four patients to 2 PIPAC and four patients to 3 PIPAC. Access to peritoneal cavity was possible in all cases. There was no bowel access lesion. Tightness of the abdomen (CO2-flow = 0) was achieved in all cases. No postoperative complications according to CTCAE (Common Terminology Criteria for Adverse Events)>2 were observed, no re-laparotomies required and no postoperative mortality recorded.

Conclusions

Single port-access is feasible and safe for PIPAC. Potential advantages over multiple trocars technique are a lower non-access rate, a lower risk of bowel lesions and a better tightness of the abdomen. This has now to be confirmed in a comparative study.
Project-Based Learning in Indonesian EFL Classrooms: from Theory to Practice
Authors: Gai Mali Yustinus Calvin
Published: December 2016

ABSTRACT Project based learning (PBL) refers to an approach to instruction that teaches curriculum concepts through a project espousing principles of learner-centered teaching, learner autonomy, collaborative learning, and learning through tasks. This paper justifies the implementation of PBL to design two main projects and their activities in Creative Writing and Second Language Acquisition classes at English Language Education Program of Dunia University Indonesia (ED-DU). Moreover, the paper details pedagogical practices and learning resources deployed in both classes. The discussions would seem to indicate that the use of PBL grounded in the projects shows a high level of students’ participation in learning, and teachers’ innovative teaching practices. Finally, the paper hopes to provide EFL teachers who have similar teaching practices with practical ideas they can develop to help students achieve particular learning objectives in their classrooms and continue the positive trends of implementing PBL in teaching and learning. ABSTRAK Pembelajaran berbasis proyek (PBL) merupakan suatu pendekatan instruksi yang mengajarkan suatu konsep kurikulum yang didukung prinsip pengajaran yang terpusat pada siswa, otonomi siswa, pembelajaran kolaboratif, dan pembelajaran melalui tugas. Kajian ini memberikan alasan tentang implementasi PBL untuk merancang dua proyek utama dan aktifitasnya di kelas Creative Writing dan Second Language Acquisition pada program studi Pendidikan Bahasa Inggris, Universitas Dunia Indonesia. Selain itu, kajian ini memaparkan secara rinci praktik pedagogi dan sumber pembelajaran yang digunakan di kedua kelas tersebut. Pembahasan dalam kajian ini nampak mengindikasikan bahwa penggunaan PBL dalam kedua proyek tersebut menunjukan tingkat partisipasi siswa yang tinggi dan praktek pengajaran guru yang inovatif. Akhirnya, kajian ini berharap untuk memberikan guru Bahasa Inggris sebagai Bahasa Asing yang mempunyai praktik pengajaran serupa dengan ide praktis yang mereka bisa modifikasi dan kembangkan untuk membantu siswa mencapai tujuan pembelajaran tertentu dalam kelas mereka dan melanjutkan kecenderungan positif pada implementasi PBL dalam pengajaran dan pembelajaran. How to Cite: Mali, Y.,C., G. (2016). Project-Based Learning in Indonesian EFL Classrooms: from Theory to Practice. IJEE (Indonesian Journal of English Education), 3(1), 89-105. doi:10.15408/ijee.v3i1.2651 Permalink/DOI: http://dx.doi.org/10.15408/ijee.v3i1.2651
THE EFFECTIVENESS OF DIALOGUE JOURNALS IN IMPROVING THE SKILL IN WRITING NARRATIVE TEXTS
Authors: Mukti Ali
Published: December 2016

ABSTRACT This study was conducted to investigate the effectiveness of dialogue journals technique in improving students’ skill in writing narrative texts. The subjects were the year-12 of IPA students of MAN 3 Malang in the academic year 2008-2009. This study involved two intact groups of students. The experimental group was given weekly journal writing, while the control group followed the regular writing. At the end of the treatment, a writing test on narrative was assigned and the students’ works were scored using ESL Composition Profile. The result of analysis using ANCOVA indicated that not all of the mean score of writing components of the two groups were significantly different. However, the mean score of holistic aspects was significantly different. Besides, students’ responses showed a positive evaluation on the implementation of dialogue journals technique. ABSTRAK Penelitian ini dilakukan untuk meneliti keefektifan teknik dialogue journal dalam meningkatkan keterampilan siswa menulis teks naratif. Subyek penelitian ini adalah siswa kelas XII IPA MAN 3 Malang tahun pelajaran 2008-2009. Penelitian ini melibatkan dua kelompok siswa. Kelompok eksperimen diminta untuk menulis dan mengumpulkan  jurnal tiap pekan sementara kelompok control tetap mengikuti pelajaran menulis seperti biasa. Pada akhir perlakuan, kedua kelompok siswa diminta menulis teks naratif yang kemudian dinilai menggunakan ESL Composition Profile. Setelah dianalisa menggunakan ANCOVA,  hasilnya menunjukkan bahwa tidak semua nilai rerata dari tiap komponen menulis kedua kelompok berbeda secara signifikan. Akan tetapi, nilai rerata aspek secara keseluruhan berbeda secara signifikan. Disamping itu, siswa menanggapi positif terhadap penggunaan teknik dialogue journal. How to Cite: Mukti, A. (2016). The Effectiveness of Dialogue Journals in Improving  the Skill in Writing Narrative Texts. IJEE (Indonesian Journal of English Education), 3(1), 1-14 doi:10.15408/ijee.v3i1.3444 Permalink/DOI: http://dx.doi.org/10.15408/ijee.v3i1.3444