bluuebunny/crossref_metadata_2025_split huggingface dataset:
Repair of Precision Castings Made of the Inconel 713C Alloy
Authors: Łyczkowska K. , Adamiec J. 
Published: October 2017

Abstract
Inconel 713C precision castings are used as aircraft engine components exposed to high temperatures and the aggressive exhaust gas environment. Industrial experience has shown that precision-cast components of such complexity contain casting defects like microshrinkage, porosity, and cracks. This necessitates the development of repair technologies for castings of this type. This paper presents the results of metallographic examinations of melted areas and clad welds on the Inconel 713C nickel-based superalloy, made by TIG, plasma arc, and laser. The cladding process was carried out on model test plates in order to determine the technological and material-related problems connected with the weldability of Inconel 713C. The studies included analyses of the macro- and microstructure of the clad welds, the base materials, and the heat-affected zones. The results of the structural analyses of the clad welds indicate that Inconel 713C should be classified as a low-weldability material. In the clad welds made by laser, cracks were identified mainly in the heat-affected zone and at the melted zone interface, crystals were formed on partially-melted grains. Cracks of this type were not identified in the clad welds made using the plasma-arc method. It has been concluded that due to the possibility of manual cladding and the absence of welding imperfections, the technology having the greatest potential for application is plasma-arc cladding.
Iron Intermetallic Phases in the Alloy Based on Al-Si-Mg by Applying Manganese
Authors: Podprocká R. , Bolibruchová D. 
Published: October 2017

Abstract
Manganese is an effective element used for the modification of needle intermetallic phases in Al-Si alloy. These particles seriously degrade mechanical characteristics of the alloy and promote the formation of porosity. By adding manganese the particles are being excluded in more compact shape of “Chinese script” or skeletal form, which are less initiative to cracks as Al5FeSi phase. In the present article, AlSi7Mg0.3 aluminium foundry alloy with several manganese content were studied. The alloy was controlled pollution for achieve higher iron content (about 0.7 wt. % Fe). The manganese were added in amount of 0.2 wt. %, 0.6 wt. %, 1.0 wt. % and 1.4 wt. %. The influence of the alloying element on the process of crystallization of intermetallic phases were compared to microstructural observations. The results indicate that increasing manganese content (> 0.2 wt. % Mn) lead to increase the temperature of solidification iron rich phase (TAl5FeSi) and reduction this particles. The temperature of nucleation Al-Si eutectic increase with higher manganese content also. At adding 1.4 wt. % Mn grain refinement and skeleton particles were observed.
Fuel Consumption, Work Time Expenditures and Winter Wheat Yield in Case of Non-Tillage and Strip Soil Cultivation
Authors: Piskier Tomasz 
Published: October 2017

AbstractA single-factor field experiment concerned calculation of fuel consumption, time expenditure of the working time of machines, and winter wheat yield size in three technologies of soil cultivation. Fuel consumption in the tillage and non-tillage technology was comparable and amounted approximately to 31 l·ha−1, but the highest consumption was generated by basic soil cultivation (tillage or heavy cultivation cultivator). Fuel consumption in the strip cultivation technology was the lowest and it was 23.0 l·ha−1. Non-tillage cultivation allowed reduction of the time necessary to carry out the wheat cultivation technology by 28.8% (in comparison to tillage cultivation). On the other hand, strip cultivation allowed reduction of the total time of machines operation by 48.5 % (in comparison to tillage cultivation). The yield of winter wheat cultivated in the non-tillage technology was at the average by 4% better than the one cultivated in tillage cultivation. The highest yield of seed (7.63 t·ha−1) was obtained in the strip cultivation technology (by 6.7% in comparison to tillage cultivation).
A Note on the Square Subgroups of Decomposable Torsion-Free Abelian Groups of Rank Three
Authors: Woronowicz Mateusz 
Published: October 2017

AbstractA hypothesis stated in [16] is confirmed for the case of associative rings. The answers to some questions posed in the mentioned paper are also given. The square subgroup of a completely decomposable torsion-free abelian group is described (in both cases of associative and general rings). It is shown that for any such a group A, the quotient group modulo the square subgroup of A is a nil-group. Some results listed in [16] are generalized and corrected. Moreover, it is proved that for a given abelian group A, the square subgroup of A considered in the class of associative rings, is a characteristic subgroup of A.
Filtering of ECG signals distorted by magnetic field gradients during MRI using non-linear filters and higher-order statistics
Authors: Schmidt Marcus , Krug Johannes W. , Rosenheimer Michael N. , Rose Georg 
Published: October 2017

Abstract
The electrocardiogram (ECG) is the state-of-the-art signal for patient monitoring and gating in cardiovascular magnetic resonance (CMR) imaging applications. However, ECG signals are severely distorted during MRI scans due to the effects of static magnetic fields, radio frequency pulses and fast-switching gradient magnetic fields. Gradient-induced artifacts that cause high frequency peaks in the ECG signal especially hamper a correct and reliable QRS detection. To cope with this problem, a new median-based real-time gradient filter (M1) approach was developed. To improve the filter results, a preprocessing step based on higher-order statistics (M2) was added to this. For the evaluation of the filtering techniques, ECG signals were acquired in a 3T MRI scanner during different MR sequences. A qualitative comparison was made using the mean square error as well as the signal power before and after filtering and the results of the QRS detection. Here, reliable results were achieved (detection error rate [DER] M1: 0.23%, DER M2: 0.74%). It was shown that the two developed techniques allowed a reliable suppression of the gradient artifacts in real time.
A Review on Artificial Bee Colony Algorithms and Their Applications to Data Clustering
Authors: Kumar Ajit , Kumar Dharmender , Jarial S. K. 
Published: October 2017

AbstractData clustering is an important data mining technique being widely used in numerous applications. It is a method of creating groups (clusters) of objects, in such a way that objects in one cluster are very similar and objects in different clusters are quite distinct, i.e. intra-cluster distance is minimized and inter-cluster distance is maximized. However, the popular conventional clustering algorithms have shortcomings such as dependency on center initialization, slow convergence rate, local optima trap, etc. Artificial Bee Colony (ABC) algorithm is one of the popular swarm based algorithm inspired by intelligent foraging behaviour of honeybees that helps to minimize these shortcomings. In the past, many swarm intelligence based techniques for clustering were introduced and proved their performance. This paper provides a literature survey on ABC, its variants and its applications in data clustering.
Modules for Rapid Application Development of Web-Based Information Systems (RADWIS)
Authors: Cheresharov S. , Krushkov H. , Stoyanov S. , Popchev I. 
Published: October 2017

Abstract
This paper describes a model of modular system for Rapid Application Development of Web-based Information Systems (RADWIS). The existing modular systems on technology, framework and platform level does not fully solve the problems of functionality reuse, rapid application development and balance between the complexity, size and functionality. The proposed modular system addresses these problems in a new way. The current work fills the gap between the modular systems on the framework and platform level. The model uses flexible, reusable modules, which can be built with different technologies. They are installable and shareable with the standard dependency manager of the technology and can communicate using web services. The modules use NoSQL approaches in SQL databases. A workflow engine module, based on the Petri Nets theory, allows a graphical and formal mathematical solution for a wide variety of problems.
Learned Features are Better for Ethnicity Classification
Authors: Anwar Inzamam , Ul Islam Naeem 
Published: October 2017

AbstractEthnicity is a key demographic attribute of human beings and it plays a vital role in automatic facial recognition and have extensive real world applications such as Human Computer Interaction (HCI); demographic based classification; biometric based recognition; security and defense to name a few. In this paper, we present a novel approach for extracting ethnicity from the facial images. The proposed method makes use of a pre trained Convolutional Neural Network (CNN) to extract the features, then Support Vector Machine (SVM) with linear kernel is used as a classifier. This technique uses translational invariant hierarchical features learned by the network, in contrast to previous works, which use hand crafted features such as Local Binary Pattern (LBP); Gabor, etc. Thorough experiments are presented on ten different facial databases, which strongly suggest that our approach is robust to different expressions and illuminations conditions. Here we consider ethnicity classification as a three class problem including Asian, African-American and Caucasian. Average classification accuracy over all databases is 98.28%, 99.66% and 99.05% for Asian, African-American and Caucasian respectively. All the codes are available for reproducing the results on request.
Does the Self-employment Policy Reduce Unemployment and Increase Employment? Empirical Evidence from the Czech Regions
Authors: Dvouletý Ondřej 
Published: October 2017

AbstractEmpirical evidence related to the effectivity and outcomes of the self-employment programmes in the Central and Eastern Europe is still very rare, despite the important role of entrepreneurship in the economic development of post-communist economies. The main purpose of this study was to empirically investigate the impact of self-employment subsidy for unemployed in the Czech NUTS 3 regions for the period of years 2012–2015 to provide policy makers supportive material useful for policy adjustments. The study applies quantitative research framework, which is based on the construction of econometric models. Estimated regression models with region fixed effects supported the negative association between the amount of supported self-employed and unemployment rates in the Czech regions. This finding is theoretically framed by the theory of necessity entrepreneurship. Positive spillover of the programme (‘a double dividend’), was econometrically tested on the regional employment rates. Obtained estimates found that there is a positive contemporaneous relationship (weakly significant) between the number of supported self-employed and the employment rates but not in the lag. Analysis of the costs revealed that the costs of self-employment programme are not that high, if one takes into account the alternative costs of unemployment benefits paid to the unemployed and social insurance paid back to the state by the newly established self-employed. Therefore, this tool of active labour market policy has a potential of wider usage. Nevertheless, the applied empirical strategy was based on the regional level and has its limitations. Provided results need to be interpreted cautiously, without any causal inference, because the true outcomes of the programme could be analysed only on the level of supported individuals. Future research should therefore challenge the effectiveness of the start-up subsidy programmes in the Czech Republic on the level of individuals, with focus on the survival rates of subsidized businesses and incomes of their formerly unemployed owners.
Assessment of Nicotine Exposure From Active Human Cigarette Smoking Time
Authors: Cahours Xavier , Julien Rémi , Verron Thomas , Colard Stéphane 
Published: October 2017

Summary
The burning of a cigarette is a series of consecutive sequences of both passive and active burnings when a smoking cycle is applied to the cigarette. A previous study, using a smoking machine, showed that cigarette nicotine yields are dependent linearly on the difference between the time of smouldering (passive burning) and the time of smoking (active burning). It is predicted that the smoker’s nicotine yield increases when the intensity of smoking increases, i.e., when the time to smoke a cigarette (smoking time) decreases. Note that observations made on machines might not be comparable to human behaviours. The aim of this study was to determine whether nicotine mouth-level exposure could be predicted through measurement of human smoking time. A smoking behaviour study was conducted to compare human smoking nicotine yields obtained from both filter tip analysis and the cigarette burning time model. Results showed that smokers’ exposure to the smoke depends essentially on the speed at which the cigarette is smoked. An increase in human smoking intensity, resulting in a decrease in smoking time, generates an increase in smoke exposure, whatever the puff number, puff duration, puff volume and filter ventilation (open or blocked). The association of a machine smoking yield with a corresponding smoking time, and the time taken by a consumer to smoke the cigarette would provide information on the exposure to smoke constituents in a simple and effective manner.
Effect and Mechanism of High-Pressure Processing: A Case Study of Flue-Cured Tobacco
Authors: Tan Chao , Yang Dongsheng , Yu Saibo , Li Ke , Tan Haifeng , Fan Hongmei , Wang Shitai , Chen Qian , Liu Qi , Zhao Yu , Guo Xuemin , Jia Xinxin , Jin Yong 
Published: October 2017

Summary
After a high-pressure processing (HPP) treatment sensory evaluation of flue-cured tobacco showed modifications. There was no significant difference (P > 0.05) between the routine chemical components (total sugar, reducing sugar, nicotine, and total nitrogen) of flue-cured tobacco after high-pressure processing treatment (HPP sample) and that of an untreated control group (CG). An overall judgement, which can be made from the observations of scanning electron microscopy (SEM), X-ray computed microtomography (micro-CT) and transmission electron microscopy (TEM), is that HPP could compress the inner tunnel and tissue gap in a flue-cured tobacco leaf. However, the ultrastructure, such as the cellular cytoskeleton, would not be changed. Compared with CG, the apparent density of the HPP sample rose by 19.3%, while the true density only rose by 1.4%. This also explained that the main effect of high-pressure processing on flue-cured tobacco was microstructure compression rather than compression on the ultrastructure level. The differences between the lamina (leaf-shaped) sample, which were caused by high-pressure processing, were reflected in terahertz time-domain spectroscopy (THz-TDS), simultaneous thermal analysis (STA), and pyrolysis gas chromatography/mass spectrometry (Py-GC/MS). When the same tests were carried out using a sample that was milled to a powder, however, these differences were nearly removed. The milling process destroyed most of the microstructure of the flue-cured tobacco lamina; therefore, the results of THz-TDS, STA, and Py-GC/MS confirmed the hypothesis: That 400 MPa high-pressure processing treatment minimally changes the ultrastructure of flue-cured tobacco and only changes its relatively larger microstructure.
Comparison of honey and phenytoin (PHT) cream effects on intensity of pain and episiotomy wound healing in nulliparous women
Authors: Lavaf Mohadesseh , Simbar Masoumeh , Mojab Faraz , Alavi Majd Hamid , Samimi Mansoureh 
Published: October 2017

Abstract

Background
This study investigates and compares the effect of phenytoin and honey cream on intensity of pain and episiotomy wound healing in nulliparous women.

Methods
This research was conducted by double-blinded randomized clinical trial method on 120 nulliparous women in three groups of phenytoin, honey and placebo. After delivery and episiotomy, mothers used a knuckle of the prescribed creams on their episiotomy area, every night until 10-night. Evaluation of wound healing using REEDA scale and pain intensity with numerical rating scale of pain took place within the first 24 h and after 7 and 14 days of delivery.

Results
Results showed significant differences between healing scores of the three groups for the seventh day after delivery. Healing score in the honey group was lower than that in placebo group. On the fourteenth day after delivery, the healing scores showed no significant differences between the three groups. Measuring pain intensity did not show any significant difference in the three groups after 7 and 14 days of delivery.

Conclusions
Both honey and phenytoin led to episiotomy wound healing; however, honey caused the wound healing better than the phenytoin. Honey and phenytoin did not reduce episiotomy pain.
Precursor Selection for Sol–Gel Synthesis of Titanium Carbide Nanopowders by a New Cubic Fuzzy Multi-Attribute Group Decision-Making Model
Authors: Fahmi Aliya , Abdullah Saleem , Amin Fazli , Ali Asad 
Published: October 2017

Abstract
In this paper, we construct an extended version of the TOPSIS method by using cubic information, and provide a numerical application to verify and demonstrate the practicality of the method. A new extension of the gray relation analysis (GRA) method is introduced by using cubic information. We also propose the cubic fuzzy multi-attribute group decision-making model, and the relation between the cubic TOPSIS method and the cubic gray relation analysis (CGRA) method is introduced. Finally, the proposed method is used for selection in sol–gel synthesis of titanium carbide nanopowders. We analyzed the proposed method by using a numerical application to sol–gel synthesis of titanium carbide nanopowders.
Knowledge and social opinions about physiotherapists
Authors: Bartocha E. , Górecka A. , Szynal M. , Knapik A. 
Published: October 2017

Abstract
Background: Physiotherapy is an integral part of medicine, both in terms of prevention and treatment. Despite the long history of healing with movement and other physical factors, physiotherapy is considered to be a young field of medicine, and the occupation of the physiotherapist in the social consciousness is in the building phase. The aim of the study was to investigate the interest in physiotherapist Material/Methods: The study involved 199 people, including 117 women (58.79%) and 82 men (41.21%), residents of the Silesian Voivodship. Age of respondents: 16-81 years (x = 46.22, SD = 13.45). The research tool was an original questionnaire. Closed questions concerned the interest in physiotherapist profession, self-assessment of knowledge and its sources, opinions on the availability and quality of services, and the social prestige and profitability of the physiotherapist profession. Results: Respondents most often declared that their interest in the profession is poor or average, but they evaluate their level of knowledge of the profession as high. The prevailing opinions are that the availability of physiotherapist services is large, but at patients own expense, and the cost-effectiveness of the profession is average. Women revealed greater interest and declared more knowledge of the profession than men. Differences also concerned the opinions on the profitability of the profession. Conclusions: The public interest in physiotherapist profession is on an average level, positive opinions about physiotherapists prevail, especially among older people. The profession is considered to be averagely profitable.
How speakers interpret the negative markersnoandno…pasin Catalan
Authors: Tubau Susagna , Déprez Viviane , Borràs-Comes Joan , Espinal M.Teresa 
Published: October 2017

AbstractThis paper reports the results of an experimental investigation designed to test the interpretation of the optional doubling of the negative markersnoandpasin Expletive Negation (EN) contexts and in preverbal Negative Concord Items (NCI) contexts in Catalan. We show that in EN contexts a negative interpretation ofnois preferred to an expletive one, with non-negative readings being less widespread than expected from what is described in traditional grammars. In NCI contexts the overt presence ofnobasically contributes to a single negation interpretation, thus confirming the status of Catalan as a Negative Concord language. We also show that, in the absence of discourse environments,pasin both EN and NCI contexts shows a variable interpretation, a characteristic of negative polarity items. Our results indicate thatpasdoes not increase the amount of negative interpretation ofnoin EN contexts, or of double negation in NCI contexts, but is an item dependent on the interpretation ofno. We conclude that the strengthening role of Catalanpas(at stage two of Jespersen’s cycle), while associated with the expression of metalinguistic negation, does not reverse the truth or falsity of a proposition.
Influence Variation of Tempe Gembus (An Indonesian Fermented Food) on Homocysteine and Malondialdehyde of Rats Fed an Atherogenic Diet
Authors: Kurniasari Ratih , Sulchan Muhammad , Afifah Diana Nur , Anjani Gemala , Rustanti Ninik 
Published: October 2017

AbstractBackground and Aims: Atherosclerosis has become a prominent health problem in Indonesia. Based on food as medicine concept, tempe gembus (a fermented food from Indonesia) is well known having the content of nutrient that influences atherosclerosis parameter. Research aimed to prove the influence of different variation of tempe gembus that was given without additional treatment (X1), with the steam blanching heating (X2), and was added the bromelain enzyme (X3) to the level of serum Homocysteine (Hcy) and Malondialdehyde (MDA) of rat’s blood that was given the atherogenic diet.Material and Methods: The research of posttest randomized controlled group design on 35 Sprague dawley rats were divided into two main groups as follow; they were 2 control groups (called K− and K+) and 3 treatment groups. All of the treatment groups were given tempe gembus of 25 gram/kg rat body weight.Results:The results showed that group variation of tempe gembus had a lower mean of Hcy and MDA levels than disease group (K+). However, a significant effect of tempe gembus was only decrease in MDA level (ANOVA test p = 0.001). Treatment X1 and X3 had meaningful differences to decrease MDA levels.Conclusion:Tempe gembus variation can decrease the MDA level significantly and decrease the Hcy level however, without statistical significance.