bluuebunny/crossref_metadata_2025 huggingface dataset:
Technical and Vocational Education and Training Curricula at the Lower Secondary Level in Jamaica: A Preliminary Exploration of Education for Sustainable Development Content
Authors: Roofe Carmel , Ferguson Therese
Published: January 2019

Education for Sustainable Development (ESD) is critical for Caribbean countries such as Jamaica as the country grapples with various sustainability issues. The integration of ESD into formal and non-formal education therefore becomes a necessary undertaking. At the formal level, reorienting curricula at all levels is important and advocated for in various international documents such as Agenda 21 and by agencies such as the United Nations Educational, Scientific and Cultural Organization. With this in mind, this study utilised a qualitative content analysis approach to undertake a preliminary exploration of ESD content in TVET curricula at the lower secondary level (grades 7-9) in Jamaica. Analysis of three of the subjects as taught in the TVET area of Resource and Technology revealed that though ESD issues, perspectives and skills are integrated into various components of the curriculum, many of the ESD issues, perspectives and skills the research sought to identify were not evident in the curricula. Additionally, based on the analysis, it was felt that the curriculum lacks alignment among the components (objectives, content, learning experience, assessment, teaching strategies) that reflected ESD content, and that there is need for integration of more such content in the curricula to ensure that TVET and ESD yield the relevant benefits.
Rural Small and Medium Enterprises Development in Molise (Italy)
Authors: Fanelli Rosa Maria
Published: January 2019

Small and Medium Enterprises (SMEs) are a key economic sector in Molise, a region in central Italy, characterized by a high level of rurality. This paper uses descriptive survey research to discuss the findings of a study of the innovation process in a sample of SMEs located in rural areas of Molise. It explores the aims of the innovation and any barriers encountered. Data were collected from 30 respondents with the aid of an on-line questionnaire. The sample was drawn from a database made available by the Chambers of Commerce in Molise. The database includes 165 firms that, in recent years, have introduced innovative technologies. The findings of the study revealed that there is a high level of awareness of the importance of technology among the managing bodies of SMEs. Most rural firms prefer to use new production technologies and new processes, rather than invest in research and development activities. Furthermore, there is a low propensity to set up partnerships with other enterprises along the supply chain and to participate in collaborative networks designed to stimulate innovation. Most owners and/or managers interviewed lamented the lack of financial resources necessary to make technological innovations. They also highlighted the considerable difficulty in accessing public and private funding. The paper concludes with some brief prospects by recommending a few implications for policy. The results of this study are important for both researchers as well as those involved in small business (including government, agencies and owner/managers).
The Eastern Austrian Alps – Their Exceptional Demographic Status in the Alpine Region
Authors: Čede Peter , Deissl Gerhard , Löffler Roland , Steinicke Ernst
Published: January 2019

In most Alpine regions with current negative migratory balance, new in-migration from urban areas has meanwhile become a relevant factor. However, this phenomenon is insignificant in Austria’s Eastern Alps. The aim of this thesis-led work is to empirically demonstrate the main reasons for this demographically exceptional position. The Styrian-Lower Austrian Limestone Alps, representing the peripheral core area of Austria's Eastern Alps, were chosen as the study area, as in this region the population decline and above all, migratory losses are particularly high. Through various qualitative and quantitative data acquisition techniques it was shown that new inmigration is still insignificant. The main reasons for this are the perseverance of large estates and the dominance of forestry.
Terra Incognita of the Russian Near North: Counter-Urbanization in Today’S Russia and the Formation of Dacha Communities
Authors: Nefedova Tatiana Grigor’evna , Pokrovsky Nikita Evgen’evich
Published: January 2019

This article considers the salient features of counter-urbanization, which take place when urban residents, during the summer months, move to live in their second homes or their dachas [country homes or summer cottages]. Due to the social forces that are the result of incomplete urbanization, class polarization, and the rapid growth of major city centers, there are two powerful oppositional flows of migration taking place today in Russia. The first is centripetal migration or the movement of rural populations to large cities. The second form of migration is centrifugal migration or counterurbanization, which is the relocation of urban populations to rural areas. The article gives a theoretical overview of a new vision of migration as a part of modern flexible ‘liquid’ mobility, which enables urban residents to be constantly ‘on the move’, migrating between their urban apartments and suburban or distant dachas. A theoretical sociological background provides the field research, presented in the article, with an understanding of the realm of meanings of de-urbanization in a short and long historical run and in perspective. Russian men and women, who work in various professions due to advances in telecommunication technologies, are able to spend some extended periods at their dachas where they simultaneously work and enjoy the natural beauty and countryside. The different types of dachas in Russia that are either close to cities or in remote regions are examined. The case study of dacha counter-urbanization in the periphery region of Kostroma oblast' considers: 1) various features of the return counter-urbanization to remote dacha and 2) the social, economic and cultural effects that these dacha settlements have had on both the urban and rural residents.
Ecovillage as an Alternative Way of Rural Life: Evidence From Hungary and Slovakia
Authors: Moravčíková Danka , Fürjészová Tímea
Published: January 2019

This paper offers a case study of three selected ecovillages (two in Hungary and one in Slovakia). The main objective is to characterize, analyse and eventually compare types, trends and problems in the development of ecovillages and to discuss the possible impacts and effects of ecovillage movement on sustainable rural development. The authors used interviews, observation and inquiry for data collection and methods of document analysis, content analysis of different sources, and analysis of foot marks. They attempt to bring the worldview closer by introducing the basic ecovillage concept and framework, and by describing the ecovillage types, recent trends, problems and challenges. The analytical part begins with a short characteristic of the ecovillage movement in Hungary and Slovakia and follows with six thematic subchapters that investigate and compare the observed ecovillages according to the purposes and motivation for their founding, the communication models and public relations, local economic systems and self-sufficiency phenomenon, the employment structure and the existing infrastructure. Finally, the last part is devoted to assess the main research findings.
Greenhouse Agriculture in the Icelandic Food System
Authors: Butrico Gina M. , Kaplan David H.
Published: January 2019

Greenhouses are a frequent feature on the Icelandic rural landscape and an integral part of Iceland’s food system. Iceland’s reserves of geothermal energy present an opportunity to extend an otherwise short growing season. This promotes sustainability, increases food security, and benefits consumers. This article examines the relative strengths of Iceland’s greenhouse sector - using a combination of statistics, observations, and interviews to understand the resource demands of greenhouse agriculture, how well greenhouses can allay some food insecurity and provide local foods. It ends with an examination of how the reduction of subsidies used to keep greenhouse agriculture going, has had an effect and forces the question of whether losing much of Iceland’s agricultural sector and locally sourced food is worth the social and political costs.
Efficiency of the Dairy Farms: A Study from Azores (Portugal)
Authors: Silva Emiliana , Almeida Bruno , Marta-Costa Ana Alexandra
Published: January 2019

Azores dairy represents 30% of Portuguese production. The farms are dominated by family nature and a relevant part of them are an exclusive source of the producer’s income. Nowadays, the milk production has some problems due to the falling prices of milk on the producer and the European milk quotes abolishment. This situation requires the assessment of the Azorean dairy farms efficiency as a way to rationalize the use of the factors of production for the milk production. The aim of this research is to estimate the Technical Efficiency (TE) in two different groups of farms, of which the used criteria were to earn incomes exclusively from farm (Full-Time Farmer, FTF) or to have another complementary source of income (Partial-Time Farmer, PTF). The farms database was provided by a farmers’ association and the Data Envelopment Analysis (DEA) was chosen for modelling TE estimation. The main findings show the inexistence of substantial differences in the farms performance with or without complementary sources of income (0.679 for PTF and 0.689 for FTF). However, the most efficient farms are related with the main source of income.
About Supergraphs. Part I
Authors: Koch Sebastian
Published: January 2019

Drawing a finite graph is usually done by a finite sequence of the following three operations.

1. Draw a vertex of the graph.

2. Draw an edge between two vertices of the graph.

3. Draw an edge starting from a vertex of the graph and immediately draw a vertex at the other end of it.

By this procedure any finite graph can be constructed. This property of graphs is so obvious that the author of this article has yet to find a reference where it is mentioned explicitly. In introductionary books (like [10], [5], [9]) as well as in advanced ones (like [4]), after the initial definition of graphs the examples are usually given by graphical representations rather than explicit set theoretic descriptions, assuming a mutual understanding how the representation is to be translated into a description fitting the definition. However, Mizar [2], [3] does not possess this innate ability of humans to translate pictures into graphs. Therefore, if one wants to create graphs in Mizar without directly providing a set theoretic description (i.e. using the createGraph functor), a rigorous approach to the constructing operations is required.

In this paper supergraphs are defined as an inverse mode to subgraphs as given in [8]. The three graph construction operations are defined as modes extending Supergraph similar to how the various remove operations were introduced as submodes of Subgraph in [8]. Many theorems are proven that describe how graph properties are transferred to special supergraphs. In particular, to prove that disconnected graphs cannot become connected by adding an edge between two vertices that lie in the same component, the theory of replacing a part of a walk with another walk is introduced in the preliminaries.
Crude oil, natural gas, and economic growth: impact and causality analysis in Caspian Sea region
Authors: Jahangir S M Rashed , Dural Betul Yuce
Published: January 2019

The main objective of this study was to investigate the impact and causality of crude oil and natural gas on economic growth in the Caspian Sea region. Here, the study applies ordinary least square (OLS) method and Granger causality test using time series data from 1997 to 2015 to ascertain the impact and causality of crude oil and natural gas on economic growth. The results, according to the OLS method, evince that crude oil and natural gas have a significant impact on economic growth of the region. Alongside, considering causality test, gross domestic product (GDP) does Granger cause (unidirectional) crude oil price and export which denotes that GDP can help to forecast crude oil price and export; however, crude oil price and export cannot help to forecast GDP. Surprisingly, this direction is unlikely for GDP and natural gas. GDP and natural gas have unidirectional, but opposite causal relationship, i.e., natural gas price and export do Granger cause GDP which signify that natural gas price and export can help to forecast GDP; however, GDP cannot help to forecast crude oil price and export.
On Some New Classes of Bi-univalent Functions
Authors: Darus M. , Singh Saumya
Published: January 2019

In the present paper, we introduce and investigate two new subclasses QΣ(n; y;k) and BΣ(n;β;k) of bi-valent functions in the unit disk U. For functions belonging to the classes QΣ(n;y;k) and BΣ(n;β;k), we obtain estimates on the first two Taylor-Maclaurin coefficients |a2| and |a3|.
A New Compound Lifetime Distribution: Model, Characterization, Estimation and Application
Authors: Rashid Adil , Jan Tariq Rashid , Bhat Akhtar Hussain , Ahmad Z.
Published: January 2019

There are diverse lifetime models available to the researchers to predict the uncertain behavior of random events but at times they fail to provide adequate fit for some complex and new data sets. New probability distributions are emerging as lifetime models to meet this ever growing demand of modeling complex real world phenomena from different sciences with better efficiency. Here, in this manuscript we shall compose Ailamujia distribution with that of power series distribution. This newly developed distribution called Ailamujia power series distribution reduces to four new special lifetime models on simple specific function parametric setting. Apart from this some important mathematical properties in the form of propositions will also be discussed. Furthermore, characterization and some statistical properties that include mgf, moments, and parameter estimation have also been discussed. Finally, the potency of newly proposed model has been analyzed statistically and graphically and it has been established from the statistical analysis that newly proposed model offers a better fit when it comes to model some lifetime data set.
Nitric oxide products are not associated with metabolic syndrome
Authors: Klisic Aleksandra , Kocic Gordana , Kavaric Nebojsa , Pavlovic Radmila , Soldatovic Ivan , Ninic Ana
Published: January 2019

Background

Nitric oxide (NO) is oxidative stress biomarker which is regarded as one of the key determinants of energy metabolism and vascular tone. Considering the controversial reports on the association between nitric oxide products (NOx) and metabolic syndrome (MetS), the aim of the current study was to examine that potential relationship. Additionally, we aimed to evaluate a broad spectrum of other oxidative stress biomarkers [i.e., malondialdehyde (MDA), advanced oxidation protein products (AOPP), xanthine oxidoreductase (XOD), xanthine oxidase (XO) xanthine dehydrogenase (XDH)] in relation with MetS.

Methods

A total of 109 volunteers (46.8% of them with MetS) were included in this cross-sectional study. Biohemical and anthropometric parameters, as well as blood pressure, were obtained. The MetS was diagnosed according to the International Diabetes Federation criteria.

Results

Multivariate logistic regression analysis showed that XOD (OR=1.011; 95% CI 1.002–1.019; p=0.016), XO (OR=1.014; 95% CI 1.003–1.026; p=0.016), MDA (OR=1.113; 95% CI 1.038–1.192; p=0.003) and AOPP (OR=1.022; 95% CI 1.005–1.039; p=0.012) were the independent predictors of MetS, whereas no association between NOx and MetS was found. As XOD rose for 1 U/L, XO for 1 U/L, MDA for 1 μmol/L and AOPP for 1 T/L, probability for MetS rose for 1.1%, 1.4%, 11.3% and 2.2%, respectively. Adjusted R2for the Model was 0.531, which means that 53.1% of variation in MetS could be explained with this Model.

Conclusion

Unlike XOD, MDA and AOPP, NOx is not associated with MetS.
Modified, threshold-based circulation type classification for Central Europe, on the basis of Lityński’s classification
Authors: Kulesza Kinga
Published: January 2019

There are many classifications of atmospheric circulation types. In Poland, the most important one, used by Polish weather services, is the classification of circulation types developed by Lityński. This paper proposes four modifications to the currently used algorithm for determining atmospheric circulation types. The proposed algorithms have been compared and it has been shown which one produces a catalogue of circulation types in which the division of the distribution of the values of the three indices (the zonal index Ws, meridional index Wp and cyclonicity index Cp) into three classes is the closest to being equally likely. In 1986-2015, the classification scheme that deemed to be the best, differed in above 19% of cases from the currently used classification.
The role of urban movements in the process of local spatial planning and the development of participation mechanism
Authors: Badach Joanna Maria , Stasiak Anna , Baranowski Andrzej
Published: January 2019

In civil societies, urban movements are one of the tools in the process of spatial governance. In Poland, urban activism is beginning to develop together with a budding participation in public life. Therefore, there is a need to assess the scope and effects of the urban movements’ actions. The aim of the study was to determine and evaluate their impact on the spatial development in three Polish cities - Poznań, Gdańsk and Gdynia, especially in regard to the procedures in local urban planning and the process of participation. On the basis of the data collected during research and community interviews conducted in these cities, the following factors were analysed: the background and current profile of urban movements, the extent, regularity and effectiveness of their actions, the planning and spatial development initiatives undertaken, their cooperation with the local authorities and their contribution to the enhancement of participatory mechanisms.
An alternative and indirect statistical modeling method for viscosity estimation and its experimental validation for low styrene content polyester resin
Authors: Nawaz Ahmad , Islam Bilal , Ijaz M. Zafar , Saleem Umar , Sadiq Khattak M. , Ahmad Shahid Nisar , Maqsood Nabeel , Ali Liaquat
Published: January 2019

We propose an indirect method of ASTM D-1200 for measurement of viscosity from 0.1 to 30 stokes (St) using Ford cup 5 (range 2~ 12 St) by developing a statistical relation. General purpose low styrene content polyester resin (without adding initiator, hardener and accelerator) was used for viscosity measurement. In existing ASTM D 1200 standard, ford cups (1-4) are used to measure the viscosity up to 2 St, while fifth cup is used for measurement from 2 to 12 St. Viscosity above 12 St is not estimated using existing ASTM D- 1200 method. In contrast, our method and statistical relation proposed in this paper estimates viscosity in the flexible range of 0.1 to 30 St by using Ford cup 5 only. The estimated values were confirmed by existing ASTM D-1200 (0.1 to 12 St) and by using Ubbelohde viscometer (12 to 30 St). Values estimated above 12 St are from the proposed model are also in good conformance (percentage error ~ 5% or less) with experimental results. The satisfaction level of the estimated values with the experiments suggests that the model has also the potential for application to paints, polymer and oil industry.
Stability of selenium diet supplement
Authors: Grzechulska-Damszel Joanna , Markowska-Szczupak Agata , Morawski Antoni W.
Published: January 2019

Selenium is one of the trace elements playing a crucial role in a proper function of living organisms. Selenium intake varies, largely based on the selenium content of food. The daily Se intake recommended for adults amounts to 55 μg per day. The mean level of selenium in the population varies considerably between countries. Recent studies on the selenium dietary intakes in Poland showed that it is not sufficient to meet the daily requirement for this microelement so it is strongly recommended to employ selenium supplementation. The commercial product SEL-BRCA1® being a selenium diet supplement was subjected to chemical and microbial analysis to determine its stability in storage time and conditions. Basing on the obtained results it can be stated that the stability of studied supplement, stored in the closed bottles, can be confirmed for the period of time up to 45 months after the production date and it is not recommended to store opened bottles for the period of time longer than 12 months. The studied supplement showed a very high microbial stability what underscores its usefulness as human medicines.
Purification and recovery of laccase produced by submerged cultures of Trametes versicolor by three-phase partitioning as a simple and highly efficient technique
Authors: Wasak Agata , Drozd Radosław , Grygorcewicz Bartłomiej , Jankowiak Dorota , Rakoczy Rafał
Published: January 2019

In this work, three-phase partitioning (TPP) was used for the purification of laccase from liquid cultures of Trametes versicolor. For determining the optimal conditions of TPP process, parameters such as initial pH (6.5, 7.0, 7.5, 8.0), ammonium sulphate saturation (20%-80%) and the water phase to tert-butanol ratio (1:0.5, 1:1, 1:2), were analyzed. The best conditions with 73% recovery and 24-fold purification was obtained with the use of 50% saturation with ammonium sulphate, water phase to tert-butanol ratio of 1:1 and initial pH 7.0. The molecular mass of the purified laccase secreted by analyzed strain T. versicolor was found for ≈ 66 kDa. The results showed that TPP is an efficient method for the fractionation and purification of laccase obtained from liquid cultures of T. versicolor and it allows for obtaining the relatively pure enzyme without the use of time-consuming and costly chromatographic methods.
Numerical investigation of the turbulent flow generated with a radial Turbine using a converging hollow blade
Authors: Beloudane Mousaab , Bouzit Mohamed , Ameur Houari
Published: January 2019

The aim of this study is to investigate the effect of the blade shape on the characteristic of the flow patterns in a stirred tank. A new impeller blade design has been proposed. It is characterized by a converging hollow. The investigations of the flow structure generated in the vessel are made by using the computer code ANSYS CFX (version 16.0). The analysis has shown that the converging hollow blade yields highly radial flows which gave an increase in the radial velocity by 35% with less power consumption than the flat blade. Also, the effectiveness of the energy dissipation and the quality of mixing has been obviously noted. A validation test of our predicted results with other literature data was done, and a satisfactory agreement has been found.
Assessment of the pure sowing of different legumes and in mixtures with grass on productivity and damage level by Sitona spp. and Otiorrhynchus ligustici (LINNAEUS, 1758) (Coleoptera: Curculionidae)
Authors: Nikolova Ivelina Mitkova , Georgieva Nataliya Anastasova , Valiseva Viliana Marinova
Published: January 2019

This work examined the impact on productivity of the cultivation system of perennial legumes such as sainfoin (Onobrychis viciifolia), bird’s-foot trefoil (Lotus corniculatus) and alfalfa (Medicago sativa), grown pure and in binary mixtures with cocksfoot and on damage caused by root pests of Sitona spp. and Otiorrhynchus ligustici. It was found that the productivities of aboveground and root biomasses in binary mixtures were significantly higher compared to the corresponding legume monocultures on average by 30.7 and 39.7% respectively in mixtures with sainfoin, by 15.0 and 73.1% in mixtures with bird’s-foot trefoil, and by 18.7 and 49.6% in mixtures with alfalfa. The weight of dry aboveground biomass in the pure leguminous crops slightly exceeded that of the corresponding leguminous components in the mixtures, whereas the productivity of cereal plants in mixed crops was significantly lower compared to the pure cocksfoot on average by 38.5, 47.0 and 51.7% in mixtures of sainfoin, bird’s-foot trefoil and alfalfa respectively. A similar tendency was observed with regard to dry root biomass. Damage to nodules by Sitona larvae in mixtures decreased significantly: on average by 33.5% (sainfoin + cocksfoot), by 50.3% (bird’s-foot trefoil + cocksfoot) and by 55.6% (alfalfa + cocksfoot) compared to pure grown legumes. The damage caused by Otiorrhynchus ligustici, as expressed by the length of gnawed furrows, in the mixtures with sainfoin, bird’s-foot trefoil and alfalfa decreased considerably - by 12.5, 77.8 and 59.5%, respectively - compared to the pure crops. The damage caused by the аlfalfa snout beetle had the most significant negative effect on aboveground and root biomass productivities. Mixed cultivation systems of forage crops are an economically and ecologically sustainable method of insect pest control.
Exploring the myrmecofauna of Sicily: thirty-two new ant species recorded, including six new to Italy and many new aliens (Hymenoptera, Formicidae)
Authors: Schifani Enrico , Alicata Antonio
Published: January 2019

As a result of recent collecting efforts and older unpublished data of one of us (AA), 32 ant species (including 2 morphospecies) new to the island of Sicily (Italy) were discovered. Seven of these taxa represent unequivocally exotic entities, whose discovery marks a decisive increase of this component in the local fauna. Among these, two forms of Nylanderia EMERY, 1906 are treated as morphospecies because of the problematic taxonomy of the genus. Six taxa among the discovered species are entirely new to the myrmecofauna of Italy. Finally, Tetramorium indocile SANTSCHI, 1927 is reported for the first time as a host for the social parasite Strongylognathus testaceus (SCHENCK, 1852). The state of the art of the Sicilian myrmecofauna, now counting about 150 species, is commented on.
First record of Pulvinaria regalis CANARD, 1968 (Hemiptera: Coccomorpha: Coccidae) in Poland
Authors: Łagowska Bożena , Golan Katarzyna , Michalski Marek
Published: January 2019

Pulvinaria regalis has been recorded for the first time in Poland. This species was observed in large numbers on Acer pseudoplatanu, A. platanoides, Aesculus hippocastanum, Robinia pseudacacia, Tilia × euchlora and T. cordata in urban areas. Basic diagnostic information for this species and a key to separate the species of Pulvinaria recorded in Poland is provided. Aspects of the distribution, biology and economic importance of P. regalis are also discussed.
Systematics and faunistics of Neotropical Euliina, 1: Chamelania RAZOWSKI, 2001 and Unaica gen. n. (Lepidoptera: Tortricidae: Cochylini)
Authors: Razowski Józef , Becker Vitor Osmar
Published: January 2019

One genus, Unaica gen. n., and seven species (Unaica plumbea sp. n., Chamelania acaena sp. n., Chamelania celyphana sp. n., Chamelania corumbae sp. n., Chamelania lutea sp. n., Chamelania quasirufa sp. n., Chamelania belemana sp. n.) are described and illustrated. Chamelania is redescribed and two of its species, Chamelania jaliscana and Chamelania auricoma, are listed. Lophoderus xanthophilanus WALKER, 1863 is transferred to Chamelania. Notes on Odonthalitus RAZOWSKI, 1991 and an illustration of the male genitalia of O. poas BROWN, 2000 are included.
Study on the Design of Container Highway and Railway Automatic Transfer Vehicle in Ocean Port
Authors: Dong Lili , Liu Gouhui , Ye Xin , Wang Wei
Published: January 2019

To realize “seamless” connection of ocean port container multimodal transport, efficiently carry out “door-to-door” transport of ocean port containers and overcome the shortcomings of existing highway and railway vehicles, this study takes the standard for heavy-duty container vehicles in TB1335-1996 Railway Vehicle Strength Design and Test Identification Code as the design basis and designs a new ocean port container transport vehicle in combination with automatic guidance technology. This study innovatively designs the automatic lifting system of the bogie and the docking part of the vehicle, introduces the automatic guidance technology and the remote-control technology to optimize the car body structure, and uses the SAP software to carry out the finite element analysis of the car body load capacity and Flexsim software to carry out the simulation analysis on the operation of vehicles. The designed transfer vehicle can improve the transfer efficiency of ocean port containers, reduce the transit time of field and station equipment and container transport links, and improve the level of multimodal transport and comprehensive economic benefits.
Study on Optimization Simulation of Scr Denitration System for Marine Diesel Engine
Authors: Du Jun , Li Ruo Nan , Wu Xin , Zhang Yan
Published: January 2019

With the rapid development of shipbuilding industry exhaust world is also very harmful one kind of environmental issues, and the ship marine diesel engine exhaust gas is mainly produced, so in recent years it has developed a diesel engine SCR system. SCR system can control emissions of nitrogen oxides in the exhaust of vessel, furthermore air pollution can be reduced. The main goal of article was using fluent software to correct SCR system selection and flue gas flow under different size best deflector arrangement is simulated. Next goal is further optimize the structure of the SCR system.
Simulation Model and State Analysis of Ship Transmission Line
Authors: Hu Yanzhe , Xu Mengjie , Li Yang
Published: January 2019

In order to discuss the simulation model of the ship transmission line and the state of the transmission line, an early fault model is built according to the evolution principle of the short circuit fault of the transmission line and combining with the fault characteristics of the early fault. A small distributed ship transmission line system is built in MATLAB/ Simulink. Then, combined with the constructed fault module, the original short circuit module, and the load module, the various states (normal state, early fault state, severe early fault state, short circuit state) of the ship transmission line are stimulated, and the features of voltage signal in each state is analysed. It is concluded that, due to the normal operation of the ship transmission line system, the variation characteristics of the flow signal and voltage signal caused by the sudden load mutation, that is, the sudden load and the sudden increase load, are very similar to the changes caused by the early fault. Therefore, in order to find a more accurate early fault detection method, the state is divided into normal state, sudden load state, sudden increase and sudden decrease load state.
Exploration of Land Development Intensity Index of Port Container Logistics Park Based on Quantitative Algorithm and Pent Analysis Method
Authors: Lyu Nan , Zhao Jingyuan , Lyu Minghua
Published: January 2019

To give full play to the circulation function of the port container logistics park, it is urgent to study the development intensity of the land in the port container logistics park and to guide the scientific development of the port logistics park with reasonable development intensity control index. The current situation of land development intensity control index of container logistics park at home and abroad is analysed, the PENT (politics, economy, society and technology) analysis method is used to analyse the factors influencing the land development intensity control index of container logistics park, and the index system structure of influencing factors is constructed. Finally, index value is obtained quantitatively with the proposed calculation method of the land development intensity index of the port container logistics park. Its practicability is verified in case analysis.
Numerical Simulations of Linearly Stratified Flow Past Submerged Bodies
Authors: Ma Weizhuang , Li Yunbo , Ding Yong , Hu Kaiye , Lan Linxin
Published: January 2019

In this study, a methodology was presented to predict density stratified flows in the near-field of submerged bodies. The energy equation in temperature form was solved coupled with momentum and mass conservation equations. Linear stratification was achieved by the definition of the density as a function of temperature. At first, verifications were performed for the stratified flows passing a submerged horizontal circular cylinder, showing excellent agreement with available experimental data. The ability of the method to cope with variable density was demonstrated. Different turbulence models were used for different Re numbers and flow states. Based on the numerical methods proposed in this paper, the stratified flow was studied for the real scale benchmark DAPRA Suboff submarine. The approach used the VOF method for tracing the free surface. Turbulence was implemented with a k − ω based Detached Eddy Simulation (DES) approach. The effects of submarine speed, depth and density gradient on the free surface wave pattern were quantitatively analyzed. It was shown that, with the increasing of the speed of the submarine, the wavelength and wave height of the free surface wave were gradually increasing. The wave height of the free surface wave was gradually reduced as the submarine’s depth increased. Relative to the speed and submarine depth, the changes of the gradient density gradient have negligible effects on the free surface wave field.
Progressive Collapse Test of Ship Structures in Waves
Authors: Pei Zhiyong , Xu Tao , Wu Weiguo
Published: January 2019

The external loads and structural ultimate strength are two important aspects for the safety of ship hull girder. It may collapse in case the structural capacity is less than the external forces in extreme seas. In the present research, progressive collapse test is performed to investigate the collapse mechanism of ship structure in waves. External load with time history and corresponding structural collapse behavior are measured and discussed to demonstrate the interaction of fluid and structures.
Calculation and Measurement of Tide Height for the Navigation of Ship at High Tide Using Artificial Neural Network
Authors: Qiang Li , Bing-Dong Yang , Bi-Guang Hong
Published: January 2019

Accurate tide height is crucial for the safe navigation of large deep-draft ships when they enter and leave the port. We have proposed an accurate forecasting method for the tide heights from the observation data and neural networks, which can easily calculate the tidal window period of large deep-draft ships’ navigation through long channels at high tide. Moreover, an artificial neural network is established for the tide height from the observation of tide heights before their current time node. For an ideal forecast, the neural network was optimized for one year with the tide height data of Huanghua Port. In case of large ships, their tidal characteristics of channels for are complex. A new method is proposed for the observation of multiple stations and artificial neural networks of each observation station. When ships are navigating through the port, the tide height is predicted from the observed data and forecast tide heights of multiple observation stations. Thus, a valid tidal window period is secured when the ships enter the port. Comparative analysis of the ship’s tidal window period with that of the measured one can lead us to conclude that the forecasted data has a strong correlation with the measurement. So, our proposed algorithm can accurately predict the tide height and calculate the node timing when the ship enters and depart the port. Finally, these results can be applied for the safe navigation of large deep-draft ships when the port is at high tide.
Stability of Air Nucleus in Liquid Water and Cavitation Inception on Marine Engineering
Authors: Qiang Fu , Ming Chen , Xiuli Wang , Rongsheng Zhu , Guoyu Zhang , Jianen Yu
Published: January 2019

The micro air nucleus widely distributed in the ocean is a necessary condition for the cavitation of hydraulic machinery in seawater. In order to study the stability of air nucleus in seawater and cavitation inception, the computational domain of water molecules with air nucleus was studied using the method of molecular dynamics simulation, and the transient characteristics of air nucleus in liquid water were obtained. The key factors influencing nuclei stability were analyzed. The results showed that air nucleus with a certain mass could maintain the dynamic equilibrium in liquid water. The internal density of air nuclei had a critical value that allowed the nuclei to stably exist in water. The air nuclei mass was the decisive factor in its equilibrium volume in water, and the two were positively correlated. The internal density of air nuclei was negatively correlated with the nuclei radius when the nuclei was stable in water. Liquid surface tension was an important factor affecting the stability of the air nuclei. The larger the initial radius of nuclei, the smaller the water pressure, and the more likely the cavitation occurs.
The Influence of Finite Element Meshing Accuracy on a Welding Machine for Offshore Platform’S Modal Analysis
Authors: Xie Jiuming , Sun Dengyue , Xu Chengying , Wu Jin
Published: January 2019

The purpose objective of this study was to investigate the influence of finite element meshing accuracy on modal analysis which is one of the basic factors affecting the accuracy of finite element analysis and mostly preoccupies the working staff in pre-processing finite element simulation models. In this paper, we established several finite element models of a welding machine for offshore platform, with the meshing accuracy as the variable and workbench software as the platform for modal analysis, as the same time, comparing the analysis results. The results indicated that for some specific structures and simulation types, mesh refinement alone does not achieve desired results, and the authors indicate that mesh refinement is rarely related to the equipment’s low-frequency modal analysis but it’s great related to the equipment’s high-frequency modal analysis. The findings of this study may serve as breaking the opinion that smaller mesh size means higher calculation precision and provides references for mesh division practices in low frequency modal analysis.
Accommodation of L2 Speech in a Repetition Task: Exploring Paralinguistic Imitation
Authors: Burin Léa
Published: January 2019

Phonetic convergence is the process by which a speaker adapts his/her speech to sound more similar to his/her interlocutor. While most studies analysing this process have been conducted amongst speakers sharing the same language or variety, this experiment focuses on imitation between non-native and native speakers in a repetition task. The data is a fragment from the ANGLISH corpus designed by Anne Tortel (Tortel, 2008). 40 French speakers (10 male intermediate, 10 male advanced, 10 female intermediate and 10 female advanced learners) were asked to repeat a set of 20 sentences produced by British native speakers. Segmental (vowel quality), suprasegmental (vowel duration) and voice quality were analysed. Level of proficiency, gender and model talker were taken as independent variables. Level appeared not to be a relevant parameter due to a high amount of inter-individual variability amongst groups. Somewhat contradictory results were observed for vowel duration and F1-F2 distance for male learners converged more than female learners. Our hypothesis that low vowels display a higher degree of imitation, and especially within the F1 dimension (Babel, 2012), was partially validated. Convergence in vowel duration in order to sound more native-like was also observed (Zając, 2013). Regarding the analysis of voice quality, and more particularly of creaky voice, observations suggest that some advanced female learners creaked more than the native speakers and more in the reading task, which indicate, both linguistic idiosyncrasy and accommodation towards the native speakers. Low vowels seem also to be more likely to be produced with a creaky voice, especially at the end of prosodic constituents.
Non-Native Attitudes to /θ/ and /ð/: A European Case Study
Authors: Van den Doel Rias , Pinget Anne-France C. H. , Quené Hugo
Published: January 2019

This paper investigates the evaluation of the English sounds /θ/ and /ð/ as produced by European non-native speakers. Using the data from a larger web survey, we compared the error judgements by different native and non-native users of English. This was done to establish whether there is any normative convergence among European non-native speakers, or if this was counteracted by other patterns, such as the presence or absence of these sounds in their L1s. Our analysis shows that while European non-native judges do not differ consistently from native-speakers in their judgements, there are also subtle differences between different groups of non-native speakers, implying that we should be careful not to generalise across groups about non-native attitudes to these sounds.
Old English Simile of Equality: The Highest Degree of Similarity
Authors: Oleniak Mariana
Published: January 2019

This paper aims to provide an account of Old English similes of equality marked by the superlative degree of the adjective gelic. It deals with the structure and semantics of similes marked by the (ge)/(on)licost component, which, unlike in Modern English, being subjected to gradation, can show the highest degree of similarity between referents. The article presents the criteria for structural classification of the simile in question describing two major structural types, that employ nouns in the dative or nominative case, as well as its semantic interpretation from macro and micro levels of perspective. The paper examines every simile with the (ge)/(on)licost component found in Old English manuscripts belonging to various textual genres.
Numerical solution through mathematical modelling of unsteady MHD flow past a semi-infinite vertical moving plate with chemical reaction and radiation
Authors: Bhandari Anupam
Published: January 2019

In the present manuscript, unsteady magnetohydrodynamic (MHD) flow over a moving porous semi-infinite vertical plate with time-dependent suction has been studied in the presence of chemical reaction and radiation parameters. Time-dependent partial differential equations in the dimensionless form are solved numerically through mathematical modelling in COMSOL Multiphysics. The results are obtained for velocity, temperature and concentration profiles at different times. Steady state results are also presented for different values of physical parameters. The parameters involved in the problem are useful to change the characteristics of velocity, heat transfer and concentration profiles. The numerical solution of partial differential equations involved in the problem is obtained without sacrificing the relevant physical phenomena.
PENERAPAN APLIKASI SISTEM INFORMASI MANAJEMEN DAN DESIGN LAYANAN DRIVE THRU PADA USAHA KAFE RUMAH SUSU DI PADANG PANJANG
Authors: Fitrimawati Fitrimawati , Ramaiyulis Ramaiyulis , Putra Aronal Arief
Published: January 2019

Ilmu dan teknologi untuk masyarakat telah diaplikasikan di Kafe Rumah Susu yang terletak di  jalan Kiayi Kamarulloh Kecamatan. Bukik Surungan Kota Padang Panjang. Seiring dengan perkembangan usaha,  kafe rumah susu ini  mengalami permasalahan dalam  merumuskan strategi dalam perkembangan usaha dan peningkatan penjualan. Salah satu solusi yang dilakukan adalah pendekatan Sistem Informasi Manajemen (SIM). Aplikasi SIM dilakukan bertujuan agar data usaha mitra lengkap dan akurat serta  tersedia sepanjang waktu. Solusi untuk peningkatan pemasaran adalah membuat design layananan drive thru sedernana namun menarik. Pesanan dipesan dan  layanan  diberikan melalui jendela khusus, sementara konsumen tetap berada dalam kendaraan mereka. Metode pelaksanaan program ini adalah dengan metode demonstrasi. Hasil pelaksanaan program adalan aplikasi SIM dengan  data usaha mitra lengkap dan akurat serta  tersedia sepanjang waktu. SIM dapat menyediakan informasi untuk menunjang proses pengambilan keputusan yang akan diambil manajer, memungkinkan keputusan dapat diambil lebih cepat dan tepat.  Pengolahan transaksi dalam SIM memungkinkan manajer dapat dengan mudah mengawasi kekayaan perusahaan, memantau perkembangan usaha dan memberikan laporan kepada stakeholders. Solusi untuk peningkatan pemasaran adalah membuat design layananan drive thru sedernana namun menarik. Pesanan dipesan dan  layanan  diberikan melalui jendela khusus, sementara konsumen tetap berada dalam kendaraan mereka. Tujuan drive thru adalah memudahkan konsumen yang ingin mendapatkan produk secara cepat tapi enggan turun dari kendaraannya (mobil/motor). Layanan drive thru ini dapat menghemat waktu konsumen untuk menikmati makana fast food.  Melalui layanan ini konsumen mampir, dapat lalu pergi dalam waktu 3 menit.
ANALISIS SCP PADA INDUSTRI PROPERTI DI INDONESIA
Authors: , Nurhayati , Yusran Husna Leila
Published: January 2019

The purpose of this study is to determine how the structure, market concentration and efficiency of the property industry in Indonesia. The analysis technique used in this research is Concentration Ratio (CR10), Herfindahl Index-Hirschman (IHH) and Data Envelopment Analysis (DEA). Total revenue of the Indonesia property industry from 2010-2014 is used to calculate Concentration Ratio (CR10) and Herfindahl Index-Hirschman (IHH), while the Data Envelopment Analysis (DEA) is input and output, the input consists of total assets, debt, and equity, the output consists of total sales and profits. Based on the analysis the results of Concentration Ratio (CR10) is quite high, ranging from 74.65% - 77.16%, the market structure in the property industry classified within a tight oligopoly. Based on IHH has a range of numbers from 0.1013 to 0.56667, which means competition Indonesian property industry and the competitive nature of high concentration. Results DEA in 2010-2010 there are 4-8 efficient companies. As a result of which are oligopolistic and competitive, the companies in the property industry are doing a lot in marketing strategy as well as to achieve efficient companies should refer to the property industry has already reached the maximum efficient rate.
PENGARUH KINERJA MAKROEKONOMI TERHADAP DANA PIHAK KETIGA BANK SYARIAH INDONESIA
Authors: Saragih Ansheila Yunian , Esya Lavlimattria
Published: January 2019

This study Aimed to analyze the influence of GDP, SBIS and inflation on third-party funds (DPK), in the short term and long term in the period quarterely 2008: 1 until 2014: 4. The variables used are third party funds (DPK), Gross Domestic Product (GDP), inflation, and Bank Indonesia Certificates Sharia (SBIS). Mmethodology used is a method of Error Correction Model (ECM). Before the test of Error Correction Model (ECM), the models must pass the prerequisite test unit root, integration and Co integration. The results showed the models Prerequisites Error Correction Model (ECM) can be used and passed the prerequisite test. The results using methods Error Correction Model (ECM), it was found that the variable inflation does not significantly influence the Third Party Funds (TPF) in the long term. While in the short term inflation is a significant variable to the Third Party Fund (DPK).