bluuebunny/crossref_metadata_2025 huggingface dataset:
Modeling of the mechanical behavior of fiber-reinforced ceramic composites using finite element method (FEM)
Authors: Dimitrijevic M.M. , Tomic N. , Medjo B. , Jancic-Heinemann R. , Rakin M. , Volkov-Husovic T.
Published: January 2015

Modeling of the mechanical behavior of fiber-reinforced ceramic matrix
composites (CMC) is presented by the example of Al2O3 fibers in an alumina
based matrix. The starting point of the modeling is a substructure
(elementary cell) which includes on a micromechanical scale the statistical
properties of the fiber, matrix and fiber-matrix interface and their
interactions. The numerical evaluation of the model is accomplished by means
of the finite element method. The numerical results of calculating the
elastic modulus of the composite dependance on the quantity of the fibers
added and porosity was compared to experimental values of specimens having
the same composition.
Automatic 1D integrated geophysical modelling of lithospheric discontinuities: a case study from Carpathian-Pannonian Basin region
Authors: Grinč Michal , Zeyen Hermann , Bielik Miroslav
Published: January 2015

Using a very fast 1D method of integrated geophysical modelling, we calculated models of the Moho discontinuity and the lithosphere-asthenosphere boundary in the Carpathian-Pannonian Basin region and its surrounding tectonic units. This method is capable to constrain complicated lithospheric structures by using joint interpretation of different geophysical data sets (geoid and topography) at the same time. The Moho depth map shows significant crustal thickness variations. The thickest crust is found underneath the Carpathian arc and its immediate Foredeep. High values are found in the Eastern Carpathians and Vrancea area (44 km). The thickest crust modelled in the Southern Carpathians is 42 km. The Dinarides crust is characterized by thicknesses more than 40 km. In the East European Platform, crust has a thickness of about 34 km. In the Apuseni Mountains, the depth of the Moho is about 36 km. The Pannonian Basin and the Moesian Platform have thinner crust than the surrounding areas. Here the crustal thicknesses are less than 30 km on average. The thinnest crust can be found in the SE part of the Pannonian Basin near the contact with the Southern Carpathians where it is only 26 km. The thickest lithosphere is placed in the East European Platform, Eastern Carpathians and Southern Carpathians. The East European Platform lithosphere thickness is on average more than 120 km. A strip of thicker lithosphere follows the Eastern Carpathians and its Foredeep, where the values reach in average 160 km. A lithosphere thickness minimum can be observed at the southern border of the Southern Carpathians and in the SE part of the Pannonian Basin. Here, it is only 60 km. The extremely low values of lithospheric thickness in this area were not shown before. The Moesian Platform is characterized by an E-W trend of lithospheric thickness decrease. In the East, the thickness is about 110 km and in the west it is only 80 km. The Pannonian Basin lithospheric thickness ranges from 80 to 100 km.
A new intermediate-depth ice-core drilling system
Authors: Sheldon Simon G. , Popp Trevor J. , Hansen Steffen B. , Hedegaard Thomas M. , Mortensen Carsten
Published: January 2015

Several recent projects associated with the IPICS (International Partnerships in Ice Core Sciences) 2k array have demanded the recovery of ice core to depths in excess of several hundred metres (e.g. Flade Isblink, Greenland (2006), Aurora Basin, Antarctica (2008/09), NEEM, Greenland (2011), Aurora Basin North (2013/14) and Renland ice cap, Greenland (2015)). These projects require that the overall system weight is low, that the ability to set up and operate are within the limitations of a small-camp environment and that the overall logistical and transportation costs are kept to a minimum. Using these criteria, a new drilling system capable of drilling >400m depth was seen as a useful future development. Here we report on a new intermediate-depth drilling system designed to recover high-quality 98 mm diameter ice cores from close to surface down to depths of 1000 m by two or more operators in a small deep-field camp environment. The total weight of the system on the snow surface is ∼490 kg, of which the intermediate-depth winch is the single heaviest component at 305 kg with 1000 m of cable.
Pro-Moieties of Antimicrobial Peptide Prodrugs
Authors: Forde Eanna , Devocelle Marc
Published: January 2015

Antimicrobial peptides (AMPs) are a promising class of antimicrobial agents that have been garnering increasing attention as resistance renders many conventional antibiotics ineffective. Extensive research has resulted in a large library of highly-active AMPs. However, several issues serve as an impediment to their clinical development, not least the issue of host toxicity. An approach that may allow otherwise cytotoxic AMPs to be used is to deliver them as a prodrug, targeting antimicrobial activity and limiting toxic effects on the host. The varied library of AMPs is complemented by a selection of different possible pro-moieties, each with their own characteristics. This review deals with the different pro-moieties that have been used with AMPs and discusses the merits of each.
Ferrocene-Functionalized 4-(2,5-Di(thiophen-2-yl)-1H-pyrrol-1-yl)aniline: A Novel Design in Conducting Polymer-Based Electrochemical Biosensors
Authors: Ayranci Rukiye , Demirkol Dilek , Ak Metin , Timur Suna
Published: January 2015

Herein, we report a novel ferrocenyldithiophosphonate functional conducting polymer and its use as an immobilization matrix in amperometric biosensor applications. Initially, 4-(2,5-di(thiophen-2-yl)-1H-pyrrol-1-yl)amidoferrocenyldithiophosphonate was synthesized and copolymerized with 4-(2,5-di(thiophen-2-yl)-1H-pyrrol-1-yl)benzenamine at graphite electrodes. The amino groups on the polymer were utilized for covalent attachment of the enzyme glucose oxidase. Besides, ferrocene on the backbone was used as a redox mediator during the electrochemical measurements. Prior to the analytical characterization, optimization studies were carried out. The changes in current signals at +0.45 V were proportional to glucose concentration from 0.5 to 5.0 mM. Finally, the resulting biosensor was applied for glucose analysis in real samples and the data were compared with the spectrophotometric Trinder method.
Nephroprotective Role of Resveratrol and Ursolic Acid in Aristolochic Acid Intoxicated Zebrafish
Authors: Ding Yu-Ju , Sun Chiao-Yin , Wen Chi-Chung , Chen Yau-Hung
Published: January 2015

The nephrotoxicity of aristolochic acid (AA) is well known, but information regarding the attenuation of AA-induced toxicity is limited. The aim of the present study was to study the nephroprotective effects of resveratrol (Resv) and ursolic acid (UA) in a zebrafish model. We used two transgenic lines, Tg(wt1b:EGFP) and Tg(gata1:DsRed), to evaluate the nephroprotective effects of Resv and UA by recording subtle changes in the kidney and red blood cell circulation. Our results demonstrated that both Resv and UA treatment can attenuate AA-induced kidney malformations and improve blood circulation. Glomerular filtration rate assays revealed that both Resv and UA treatment can restore renal function (100% for Mock; 56.1% ± 17.3% for AA-treated; 80.2% ± 11.3% for Resv+AA; and 83.1% ± 8.1% for UA+AA, n = 15). Furthermore, real-time RT-PCR experiments showed that pre-treatment with either Resv or UA suppresses expression of pro-inflammatory genes. In conclusion, our findings reveal that AA-induced nephrotoxicities can be attenuated by pre-treatment with either Resv or UA. Therefore, we believe that zebrafish represent an efficient model for screening AA-protective natural compounds.
The Aspects of Restructuring Enterprises and the Ways of Implementing the Process
Authors: Garškaitė-Milvydienė Kristina
Published: January 2015

The paper discusses certain aspects of restructuring enterprises and presents different ways and measures applicable for restructuring companies; they are divided and grouped according to certain qualities. In scientific literature, measures for restructuring enterprises are most frequently classified according to organizational, legal, financial and strategic aspects. For assessing the factor of the period, passive and active ways for transforming enterprises are often singled out, where the first one is usually applied when the response to ongoing negative changes is late and actions are limited by operative anti-crisis measures targeted for cutting expenses. When the active way to the transformation of enterprises is employed, the aim of assessing the total situation of the enterprise and newly forming its strategic potential is pursued. The measures for restructuring enterprises classified with reference to different aspects differ in their goals, contents and technologies of implementation. Variety in applicable measures is predetermined by a broad range of causes and goals, and the scope of restructuring enterprises depends on the abundance of sectors to be transformed to the enterprise. Choosing a way to restructuring enterprises is also affected by external and internal environmental factors. In practice, a combination of various ways for restructuring rather than a single one of those) is applied.
Alternative Investment Funds Implications for Financial Stability in Lithuania
Authors: Jarašius Gytis , Galinienė Birutė
Published: January 2015

The rapid growth of the AIF assets under management and increasing relative share of these assets in the overall investment fund assets, indicate that AIF successfully established their position in the Lithuanian investment funds market. Due to the specific investment activity AIF are different from other investment funds, they also could be associated with additional threats to the economy and financial system. Private equity and real estate funds invest in the real sector and their impact on the financial system are more indirect, through linkages to the financial market participants. Hedge funds are actively involved in the capital markets, therefore they might have not only indirect but also direct impact on the financial system due to the use of leverage, derivatives or potential occur of crowded trades. Research results has shown that due to the still relatively small volumes of assets under management and high engagement in foreign capital markets (especially hedge funds case), AIF connections with other financial market participants are very low. AIF do not use excess leverage and trading in derivatives is not widespread – only hedge funds use such financial instruments. The high pairwise correlations between hedge funds returns suggest that there is a potential threat to the Lithuanian financial market stability. However because of the small relative share of the hedge funds and their concentration in foreign capital markets, such a threat is only theoretical. Moreover, high level of pairwise correlation coefficients between hedge funds and other investment funds do not determine the growth of the weighted average correlation. It could be added, that AIF in general did not increase values of the weighted average correlation, which could reflect potential crowding in the investment funds market. Bearing in mind small size of the AIF assets under management and fairly conservative type of their activities, it could be concluded, that Lithuanian AIF do not pose a threat to the financial stability.
Adolescence meurtrie : entre rêve et sensorialité
Authors: Matha Catherine
Published: January 2015

L’article se propose d’interroger l’importance de la fonction auto-informative de la sensorialité à l’adolescence dans ses articulations avec le travail du rêve, dont l’exigence de figurabilité est constitutive. La réflexion s’étaye sur le récit processuel d’une cure d’adolescente engagée dans des conduites compulsives d’attaques du corps.
Sensorialité = fragments épars-morceaux vivants
Authors: Corcos Maurice
Published: January 2015

De l’importance de la sensorialité dans la construction du sujet à l’adolescence en tant que reprise d’une sensorialité de la prime enfance, et de son télescopage avec la métamorphose pubertaire de l’expérience orgastique. De l’impact que cet événement produit dans le rapport du sujet au monde extérieur et à ses objets internes en terme de création… entre absence et présence de l’objet.
Prescription de psychotropes à l'adolescence
Authors: Delorme Marc
Published: January 2015

La prescription de psychotropes à l’adolescence est un acte de soin induisant une réflexion en termes de significations pour l’adolescent et pour le prescripteur. Une nouvelle génération de psychotropes a bousculé les habitudes des prescripteurs. La clinique nosographique doit donc se conjuguer avec la clinique psychopathologique, afin que le médicament devienne « un outil de liberté » en permettant au sujet de se saisir de la capacité « psychotropique » du médicament, grâce à la « magie des mots ».
L'homme pluriel
Authors: Markovits-Pessel Francine
Published: January 2015

Diderot a fréquenté tous les savoirs dans la circulation de l’ Encyclopédie , mais ce pluriel n’est pas simple énumération : Diderot substitue des codes à un ordre des choses supposé naturel, et dont le renversement entraîne la déstabilisation de la conscience de soi. Cette critique du cogito fait éclater l’unité fondatrice du sujet pensant en un pluriel : « l’anatomie métaphysique ». Au lieu de supposer un Diderot matérialiste ou athée, catégorisation indéformable de l’histoire des idées, et des galeries de portraits des grands hommes, on étudiera donc ici le cheminement des arguments, avec ou sans l’aveu de l’auteur.
Europe-Maghreb : un partenariat stratégique à construire
Authors: Cambon Christian , Durrieu Josette
Published: January 2015

À la recherche d’économies dynamiques à fort taux de croissance et à bas coûts de production, les entreprises européennes et américaines portent leur regard au loin, principalement vers l’Asie. Pour autant, ce mouvement est-il exclusif d’un renforcement des liens avec l’espace proche ? L’Europe doit-elle se détourner de sa proximité géographique, et n’apprécier les pays de la rive sud de la Méditerranée que comme une menace de laquelle l’étanchéité croissante des frontières la protégerait ? Notre perception est fixée sur la réponse à des questions immédiates : le développement du terrorisme, la stabilité politique, les phénomènes migratoires, les trafics, etc. Cette vision étroite n’est-elle pas une partie du problème ? Une autre perspective est envisageable. Compte tenu de ces atouts, et malgré ces faiblesses, la région doit être perçue par les Européens comme une formidable opportunité. L’objectif est bien pour la France et pour l’Europe, grâce à une coopération renforcée, de conduire à une plus grande intégration des économies et à la constitution à long terme d’un ensemble dynamique fondé sur les complémentarités. Il est d’ailleurs le moyen le plus sûr de répondre aux risques d’instabilité. Le moment est venu d’une démarche volontariste et ouverte en ce sens.
Turquie : un État pivôt à la recherche d'un statut régional
Authors: Biad Abdelwahab
Published: January 2015

Dotée d’un régime démocratique stable, d’une économie dynamique, d’une armée moderne, d’un attrait culturel certain héritée d’un passé glorieux, la Turquie s’est imposé depuis l’avènement du gouvernement AKP comme un soft power particulièrement entreprenant dans son voisinage eurasiatique. En effet, ce pays est un cas unique auxquels l’histoire, la culture, le mode de vie la rattachent à deux mondes, l’Europe et l’Asie, l’Occident et l’Orient. Héritière de l’Empire ottoman, la Turquie entend « capitaliser » sa position au carrefour de l’Europe et de l’Asie en rampant avec la politique traditionnelle des liens exclusifs avec « l’euro-atlantisme » dont les résultats lui paraissent pour le moins décevants (adhésion toujours attendue à l’Union européenne). C’est ce statut d’« État-pivot » entre l’Europe occidental, le monde arabe et l’Asie centrale dont la Turquie a fait un atout qui imprègne la nouvelle diplomatie « néo-ottomanienne ». Mais, cette « échappée orientale » ne s’est pas déployée sans difficultés comme l’illustrent ses démêlés dans les conflits du Moyen-Orient.
Pour une croissance partagée entre l'Afrique, la Chine et l'Europe
Authors: Emanuely Ludovic
Published: January 2015

La « Croissance partagée Afrique - Chine - Europe » (Croissance PEACE) se veut être une alternative à un système économique mondialisé qui a démontré ses limites et ses injustices. L’Afrique est demandeuse d’une croissance partagée avec la Chine et la France qui représentent pour elle des partenaires complémentaires. La « croissance partagée » n’est pas une théorie économique idéaliste, c’est une alternative durable pour une économie tripartite équilibrée aujourd’hui démontrée. Son large réseau sur les trois axes de ce partenariat (Afrique - Chine -Europe) permet à Croissance PEACE de faire aboutir des projets sur le continent africain en remettant les africains au cœur de leur développement.
STEM in Early Childhood Education
Authors: Kumtepe Alper Tolga , Genc-Kumtepe Evrim
Published: January 2015

The chapter reviews previously published articles and summarizes trends in STEM research in early childhood education over the last twelve years (2000-2012) by employing a content analytic procedure. The specific purposes of the study are to determine the general characteristics of the STEM research in early childhood education, to identify the research designs being applied in articles, and to reveal the common research topics/issues on STEM education in the field of early childhood education. A total of 41 articles are extracted from a wide range of publications. Thematic analysis reveals two main themes and nine subthemes on research topics/issues, including policy, management, equity issues, STEM schools, theories, models, professional development, teacher support, program development and evaluation, learner and teacher attributes, and pre-service teacher education.
Globalisation, Blended Learning, and Mathematics Education
Authors: Tella Adedeji
Published: January 2015

The issue about globalisation is now commonplace. However, there has not been enough literature concerning its link with ICT and mathematics education and how the three put together have impacted tertiary education pedagogy. In light of this, this chapter involves a local context of tertiary institutions operating in an environment exposed to the processes of globalisation. The chapter explores the meaning of globalisation, information communication technology, and mathematics education. It discusses how ICT and globalisation in relation to blended learning have influenced mathematics education, considers the relation between globalisation and mathematics education, and finally, draws the implications of globalisation and ICT on pedagogy in tertiary education.
Active Learning of Science in the European Dimension
Authors: Guida Maria
Published: January 2015

This chapter talks about the author's experience as a teacher in the panel of SPICE (Science pedagogy innovation centre for Europe), a partnership between fifteen European countries for the renewal of science education in a two-year project carried out by European Schoolnet and funded under the European Commission's Lifelong Learning Programme. The aim of this project is to identify and validate a number of good practices (GPs) of teaching in the field of MST (Mathematics, Science, Technology) which will be available for all European teachers on a special portal in order to use them with their students. GP criteria will become guidelines for new projects to ensure innovation and quality. SPICE was a great occasion for the participants' professional development due to the international collaboration, the opportunity of a deep reflection on their teaching methodology, and the chance of a scientific observation of their students' learning during different kinds of activity.
Learning about the Different Dimensions of Sustainability by Applying the Product Test Method in Science Classes
Authors: Burmeister Mareike , von Döhlen Janine , Eilks Ingo
Published: January 2015

This chapter reflects upon the development of a new pedagogy for secondary level science education: the product test method. This method mimics the authentic societal evaluation practice performed by professional product-testing agencies. The design of this particular pedagogy is tied directly to the three most prominent dimensions occurring in contemporary sustainability models: ecological, economic and societal sustainability. Application of this method focuses on learning about the evaluation of competing industrial products with regard to sustainability criteria. This chapter reflects upon the underlying theoretical framework of the consumer test method. It also illustrates its application in the classroom based on a lesson plan for the evaluation of different sorts of plastics. Experiences and feedback from teachers and students are discussed, based on the cyclical development process by Participatory Action Research. They reveal that the lesson plan has great potential for contributing to higher levels of student motivation and learner perception regarding issues of sustainable development.
Providing Elementary and Middle School Science Teachers with Content and Pedagogical Professional Development in an Online Environment
Authors: Mawn Mary V. , Davis Kathleen S.
Published: January 2015

There is a great need to provide science teachers with on-going and relevant professional development, but access to such opportunities can be challenging due to time, distance, and budget pressures. Online courses and programs can provide alternatives to address these challenges. This chapter presents approaches, findings, and recommendations for online professional development of elementary and middle school science teachers based on a case study of an online science education course and an online chemistry course. Three themes are discussed: the ability to incorporate inquiry-based teaching and learning in online environments, the importance of online discourse and reflection, and the role of linking theory with practice. Teacher participants reported increased experience exploring content via inquiry, felt actively engaged with their peers as they constructed their knowledge, and expected to adapt inquiry-based activities in their classrooms as a result of these online courses.
cSELF (Computer Science Education from Life)
Authors: Bennett Audrey , Eglash Ron
Published: January 2015

The phrase “broadening participation” is often used to describe efforts to decrease the race and gender gap in science and engineering education, and in this paper the authors describe an educational program focused on addressing the lower achievement rates and career interests of underrepresented ethnic groups (African American, Native American, and Latino students). However “broadening participation” can also describe the more general problem of a narrow, decontextualized form of education that can alienate all demographics. Broadening the scope of computing education can not only help address disparities in different social groups, but also make technical education more attractive to all individuals, and help us create a generation of science and engineering professionals who can better incorporate an understanding of the world into their technical work. The program the authors report on, Computer Science Education from Life (cSELF) takes a modest step in this direction. Using the concept of “design agency” the authors describe how this merging of abstract formal structures, material creative practice, and cultural knowledge can improve underrepresented student engagement, and foster learning practices in computing that offer broader forms of social expression for all students.
Integration of the Computer Games into Early Childhood Education Pre-Service Teachers' Mathematics Teaching
Authors: Tokmak Hatice Sancar , Incikabi Lutfi
Published: January 2015

Mathematics experiences in the early years of education can help children be more prepared for the future. Mathematics is known to be one of the most difficult learning areas. Computer games in today's technological world seem to offer a way to educate young children in mathematics in a fun and engaging way. However, success does not rely solely on the technology itself, but also how it is used during instruction. For that reason, early childhood teachers have a responsibility to integrate technology into their instruction, and to understand such technologies with regard to content and audience. Therefore, this chapter provides an example of how to incorporate educational computer games into upper-level education courses. The instructor designed the course described in this chapter to teach early childhood teachers how to integrate educational computer games for the purpose of teaching mathematics to young children.
Learning about Sustainability in a Non-Formal Laboratory Context for Secondary Level Students
Authors: Garner Nicole , Lischke Maria de Lourdes , Siol Antje , Eilks Ingo
Published: January 2015

This chapter discusses a project of curriculum development for the non-formal educational sector. The project aims at student learning about sustainability issues in a chemistry-related context. For this purpose, non-formal laboratory-based learning environments are developed. The learning environments center round half- or one-day visits of secondary school students in a university laboratory and are networked with the formal school syllabus in chemistry and science education respectively. All modules integrate the non-formal laboratory event about issues of sustainability with teaching materials for preparation and assessment tasks in school to fulfill part of the school curriculum in chemistry or science teaching. This chapter discusses the project of developing respective modules, the structure thereof, and initial findings from their application. The discussion is illustrated by a module on environmental problems connected to the chemistry of the atmosphere, namely climate change, the hole in the ozone layer, and the phenomenon of summer smog.
A Novel Strategy to Improve STEM Education
Authors: Swaid Samar I.
Published: January 2015

Undergraduate traditional instructional delivery that does not utilize computation is linked significantly to students' low performance and thereby attrition. Over the last two decades, new computational technologies, information, and communication have emerged, creating comprehensive cyberinfrastructure-based service systems, or what is termed here e-science. E-science environments are virtual systems that support data management, data mining, information acquisition, visualization, computing services, and people collaboration over the Web. Although a number of attempts have been successful in utilizing e-science environments to change how research is conducted, using e-science environments for education has been rarely realized. This chapter describes a project that aims to transform Science, Technology, Engineering, and Mathematics (STEM) education through using e-science systems at the undergraduate level. The strategy is built on three arms: (1) injecting Computational Thinking (CT) in STEM education; (2) using e-science for STEM learning; and (3) building a community-of-practice around e-science. By using e-science resources and services, an inquiry-based approach to learning can be the key to students' motivations, achievements, and enthusiasm for science.
Conceptual Mapping Facilitates Coherence and Critical Thinking in the Science Education System
Authors: Gorman James , Heinze-Fry Jane
Published: January 2015

In this case, the authors propose a pathway of visual mapping through which the science education system from professional educators who produce representations of national and state standards to curriculum coordinators at the school district level to individual teachers and students in the classroom could be aligned in order to promote meaningful learning of a connected set of concepts. Conceptual mapping is demonstrated to be a tool that promotes critical thinking, cohesion, and meaningful learning in opposition to the learning of arbitrary facts and rote memorization. The authors offer many examples of conceptual maps that have been produced to externalize thinking at each level. This chapter provides a “synthesis case” demonstrating that not only does it require critical thinking to create conceptual maps, but, equally salient, these visual representations of our thinking catalyze further critical thinking and coherence within the science education system.
Pass, Fail, or Incomplete?
Authors: Spence Elizabeth , Wright Tarah , Castleden Heather
Published: January 2015

This chapter investigates the presence and status of environmental education principles, as well as factors for encouraging positive environmental behaviour in students, within three sixth-grade curricula in Nova Scotia, Canada: science, social studies, and health education. The results of the research show a strong reliance on knowledge-based connections to the environment and less importance shown to experiential learning, attitudes, and values. The results also reveal a significant decline in the time and resources allotted to environmentally focused education of these subjects. The effect is a diminished and marginalized environmental education presence in sixth-grade education in Nova Scotia within the context of the Decade of Education for Sustainable Development.
Analysis of Thick-Walled Pipeline Elements Operating in Creep Conditions
Authors: Osocha Przemysław , Węglowski Bohdan
Published: January 2015

In some coal-fired power plants, pipeline elements have worked for over 200 000 hours and increased number of failures is observed. The paper discuses thermal wear processes that take place in those elements and lead to rupture. Mathematical model based on creep test data, and describing creep processes for analyzed material, has been developed. Model has been verified for pipeline operating temperature, lower than tests temperature, basing on Larson-Miller relation. Prepared model has been used for thermal-strength calculations based on a finite element method. Processes taking place inside of element and leading to its failure has been described. Than, basing on prepared mathematical creep model and FE model introduced to Ansys program further researches are made. Analysis of dimensions and shape of pipe junction and its influence on operational element lifetime is presented. In the end multi variable dependence of temperature, steam pressure and element geometry is shown, allowing optimization of process parameters in function of required operational time or maximization of steam parameters. The article presents wide range of methods. The creep test data were recalculated for operational temperature using Larson-Miller parameter. The creep strain were modelled, used equations and their parameters are presented. Analysis of errors were conducted. Geometry of failing pipe junction was introduced to the Ansys program and the finite element analysis of creep process were conducted.
Evaluation of the Uncertainty of Selected Parameters that Characterise Diesel Engine Work
Authors: Bąkowski Andrzej , Radziszewski Leszek
Published: January 2015

The evaluation included the values and uncertainty of the mean indicated pressure in subsequent operating cycles of a diesel-fuelled compression ignition engine. Analysis of combustion chamber pressure deviations from the mean values helped identify disturbance that affected the given signal. The impact of this disturbance was checked for the mean indicated pressure uncertainty and the coefficient of variation (X(pIND)). R, a free, open-source environment and commercially available Matlab software were used for statistical computing.
Development on Seismic Sensor System with MEMS Technology for Elevator’s Seismic Condition
Authors: Luo Zhi Qun , Huang Shao Lun , Wan Jian Ru
Published: January 2015

A large amount of elevators ruined in seismic events since sudden vibrations are bursting when elevator’s cars or counterweights are running. To solve this practical problem, this paper prospered a seismic sensor system with MEMS technology specializing for elevators. The fatal parts are discussed detailed including hardware design consideration, software improvement of sensor accuracy and seismic evaluation algorithm. Finally, two parts of experiments about P-wave and S-wave were verified successfully. To some extents, it’s reliable, suitable and affordable for domestic elevator’s safety on earthquake abrupt occurrence.
Hoeffding Evolutionary Algorithm and its Application in Building Equivalent Circuit Models for Lithium-Ion Battery
Authors: Wu Jing Jing , Huang Jing , Li Hai Long , Kang Wan Li
Published: January 2015

There has been a growing interest in building equivalent circuit models for lithium-ion battery with evolutionary algorithms. One of the well-known algorithm is the Hoeffding bound based evolutionary algorithm (HEA). In this paper, we first introduce the definitions of the Hoeffding bound, selection operations and Hoeffding evolutionary algorithm. And then, we introduced the method for building equivalent circuit models, which composed of four fundamental functions, connection-modifying function, component-creating function, arithmetic-performing functions and automatically defined function. In this way, a Hoeffding-evolutionary-algorithm based equivalent-circuit-model for lithium-ion battery is modeled. With the model-based state estimation approaches, the obtained model can assess the state-of-charge (SOC) of cells precisely.
Research on Overlapped Time Division Multiplexing in the Amplify-and-Forward Cooperative Mode
Authors: Zhang Hong , Ma Wei Ping
Published: January 2015

In order to improve spectrum efficiency of cooperative communication system, Overlapped Time Division Multiplexing (OVTDM) is applied to Amplify-and-Forward (AF) cooperative communication system. The simulation results under Additive White Gaussian Noise (AWGN) channel show that the performance of new system is superior to that of corresponding AF cooperative communication system.
Performance Analysis of GPS/BDS Precise Point Positioning
Authors: Li Xiao Yu , Wang Jun , Liu Ya Tao
Published: January 2015

Precise Point Positioning (PPP) with GPS measurements has achieved a level of success. In order to benefit from the multiple available constellations, research has been undertaken to combineGPS and BDS measurements in PPP processing.Mathematical models of GPS/BDS combined precise point positioning are introduced in this paper. GPS/BDS combined PPP models are developed based on the GPS-only PPP. The data pre-processing steps include applying satellite orbit and clock corrections, satellite antenna phase offset correction, receiver antenna phase offset correction, differential code bias corrections, troposphere delay corrections and the the Ionosphere-free observation combination is used. The results show that the positioning precision and convergence speed of GPS/BDS combined PPP are improved compared with GPS-only PPP.
The Performance of Double-Binary Turbo Codes in the HAP-Based Communication System
Authors: Zheng Jian Yun , Li Li , Zhu Yi Sheng
Published: January 2015

The small-scale fading model for HAP-based communication channel is analyzed, the structure and algorithm of double-binary Turbo encoding and decoding are studied. Numerical results show the BER performance with different interleaving depth and interleaving length of double-binary Turbo codes using QPSK modulation over Rayleigh fading channel.
Airborne Embedded Training System Architecture Design
Authors: Wu Yong , Li Bo , Wang Xiang Bo , Zhao Huan Yi
Published: January 2015

For the current avionics system structure of typical military aircraft, this paper proposes the architecture design of airborne embedded training system ,and detailedly discusses the functional structure scheme of the training system, composition of hardware and software etc. This paper deeply discusses credibility and effectiveness inspection scheme in the system development process, and takes embedded training system and the integration process of the fire control radar for example, this paper also does simulation and analysis of simulation.
Analysis on Estimation of PM2.5 Emissions on Coal-Fired Generating Unit
Authors: Han Xiao Zheng , Wang Qing Qing
Published: January 2015

s:Hebei’s Coal-fired generating Unit PM2.5 Emissions on Coal-fired generating Unit were estimation according to the method from “Technical Specifications of power industry and cement sector’s PM2.5 emissions (consultation)”. Quantitative analysis the relation of boiler tonnage, installed capacity, coal consumption with PM2.5 emissions.
Whole Process Management Research for Municipal Power Supply Enterprises’ other Expenses Based on Value Management
Authors: Li Jin , Zhao Ruo Chen , Wang Jian Hua
Published: January 2015

With the implementation of State Grid’s management system, ‘Three Intensive Management And Five Large-scale Movements,’ it is inevitable for municipal power supply enterprises to promote and build value management. Based on value management, with management features of municipal power supply enterprises’ other expenses, whole process management will be combined with enterprises’ realities to build management system for other expenses, strengthen control of other management expenses in the event, track key projects and form a closed-loop dynamic cost management, which will make up for lack of the feedback of traditional cost management mode on other management expenses.
A Distribution Network Fault Location Method Based on Reverse Wave and Wavelet Analysis
Authors: Zhai Xue Ming , Xia Huan , An Long
Published: January 2015

Based on the analysis of the transient process of the electric line’s developing ground fault, this paper applies the oppositely-directed travelling wave fault location method to fault location in distribution network. Simultaneously, this paper chooses proper wavelet generating functions to find the modulus maximum of oppositely-directed travelling waves and summarizes the methods and steps of this oppositely-directed travelling wave fault location. Finally, PSCAD/EMTDC is used to simulate the single-phase ground fault to verify the oppositely-directed travelling wave fault location method.
Harmonic Analyzing and Filtering of Motor Discrete Variable Frequency Soft Starter
Authors: Song Xing Yu , Chen Jing , Wang Qing , Deng Shi Jie
Published: January 2015

A large number of harmonic is mainly produced by with the discrete variable frequency soft starter. The harmonic during the motor soft starting is characterized by the high energy consumption and signal interference. Therefore, harmonic analyzing and filtering of motor discrete variable frequency soft starter is presented in this paper to achieve low energy consumption and ensure the motor soft starting stably. The following works have been done in the study: introduce the reason of harmonics appearance, analyze the harmonic, and present the filtering approach. The motor soft starter developed with this filtering approach has been successfully applied to filter out harmonic and to improve the starting performance when the motors draw the heavy-loads. It saves energy, stabilize the voltage of the power supply network.
A Composite Framework of Cuckoo Search and PSO Algorithm
Authors: Gao Zhi Qiang , Liu Li Xia , Kong Wei Wei , Wang Xiao Hong
Published: January 2015

A novel composite framework of Cuckoo Search (CS) and Particle Swarm Optimization (PSO) algorithm called CS-PSO is proposed in this paper. In CS-PSO, initialization is substituted by chaotic system, and then Cuckoo shares optimums in the global best solutions pool with particles in PSO to improve parallel cooperation and social interaction. Furthermore, Cloud Model, famous for its outstanding characteristics of the process of transforming qualitative concepts to a set of quantitative numerical values, is adopted to exploit the surrounding of the local solutions obtained from the global best solution pool. Benchmark test results show that, CS-PSO can converge to the global optimum solution rapidly and accurately, compared with other algorithms, especially in high dimensional problems.
Smoothly Blending of Cylinders Whose Axes are Non-Coplanar Based on Smoothly Blended Axes
Authors: Bai Gen Zhu , Wang Han , Zhi Wu , Yin Zhao Jie , Liu Si Yu
Published: January 2015

This study focuses on the smoothly blending problem of two cylinders whose axes are non-coplanar at the clipping planes which are perpendicular to the axes. Based on the condition that the axes were smoothly blended, we presented the necessary and sufficient conditions of the existence of the blending surface with the cylindrical helicoids tube constructed. And when those conditions were met, we presented the specific blending examples.
An Improved Mean Shift Segmentation Method of High-Resolution Remote Sensing Image Based on LBP and Canny Features
Authors: Li Yong , Xu Jing Wen , Zhao Jun Fang , Zhao Yu Dan , Li Xin
Published: January 2015

Mean shift algorithm is a robust approach toward feature space analysis, which has been wildly used for natural scene image and medical image segmentation. Due to fuzzy boundary and low accuracy of Mean shift segmentation method, this paper puts forward to an improved Mean shift segmentation method of high-resolution remote sensing image based on LBP and Canny features. The results show that this improved Mean shift segmentation access can enhance segmentation accuracy compared to the traditional Mean shift.
Application of Rough Sets Theory in Graduate Enrollment
Authors: Huang Juan
Published: January 2015

Enrollment is the first step of the work of postgraduate education, and also a very crucial step. Therefore, in order to successfully carry out the postgraduate training work, be sure to do the enrollment work. In this paper, rough set theory is applied to the enrollment data of one college of a university. Then follow the general steps of data mining to research and analyze the enrollment data. Finally, draw some useful conclusions. These conclusions have a certain significance for graduate enrollment.
Drawing Hypergraphs in Hyperedge’s Average Degree and Multi-Rules
Authors: Jia Jun , He Xiao Yuan , Hu Xiao Feng
Published: January 2015

By analysing the past algorithms of drawing hypergraphs, this paper gives the definition of hyper graphs’ vertex degree and hyperedge’s average degree at first. Then it introduces the flow of this algorithm and particularly describes the rule set in setting the position of the vertex and the principal of minimum envelop law in drawing the hyperedge, and the complexity of this algorithm is analyzed. At last it draws a hypergraphs of scientific collaboration network successfully based on this algorithm and the result proves that the drawing algorithm of hyper graphs based on hyper edge’s average degree and multi-rules is feasible.
EL-SVDD: An Improved and Localized Multi-Class Classification Algorithm
Authors: Peng Jian Xi , Tan Jian Xiong
Published: January 2015

In order to solve deviation and imbalance of the traditional multi-class classification. This paper designs an improved localized multi-class classification algorithm based on mutual communication entropy and Support Vector Data Description (SVDD), know as EL-SVDD algorithm. First, this algorithm calculates parameter values of the mutual communication entropy with many local classes of samples. Second, one class is placed inside the multidimensional sphere based on the mutual communication entropy. Finally, according to the samples and parameter values of the mutual communication entropy, it reinterpreted the C values of SVDD algorithm. As the result, the experiments shows that EL-SVDD algorithm not only has the feasibility, but also can improve the accuracy analysis of multi-class classification stably and effectively.
Method for Selecting Storage Enterprises Based on IFHA
Authors: Wu Jie , Zheng Lei Na , Pan Tie Jun
Published: January 2015

In order to reflect the decision-making more scientific and democratic, modern decision problems often require the participation of multiple decision makers. In group decision making process,require the use of intuitionistic fuzzy hybrid averaging operator (IFHA) to get the final decision result.
Valve-Shut off Scheme and Affected Zone Analysis of Multi-Sources Looped-Pipe Network Based on ARCGIS
Authors: Wei Fang
Published: January 2015

Based on ArcGIS,Multi-heat sources and multi-loops complex heating network is Modeled and simulated ,and a functional method is put forward, by using Geodatabase data model,it can creat relating matrix and basic loop matrix of heat network quickly,and calculate Hydraulic Regime of heating Network with the Basic Circuit.When pipe-bursting accident occur in heating Network,along with changes in the logical network model.also the entire calculation model is changed.This method is applied to the Study of Valve-shut off scheme after tube-burst accident ,the heating Influence of the accident can be quantitative analyzed , also the degree of influence is compared when tube-burst accident happen at different place.
Orange Feature Extraction and Description Based on Image Processing
Authors: Qian Chun Hua , Qiang He Qun , Gong Sheng Rong
Published: January 2015

Automatic orange quality classification based on computer image processing is accurate and efficient. In this paper, we discuss the orange feature extraction and description method based on image processing. Design an orange image edge detection method based on Canny operator, color characteristics description methods based on HIS model and shape characteristics description methods based on Fourier descriptor operator. The experiment result proof that Canny operator is high SNR,high accuracy and low computation;HIS model is more accord with human vision and low computation also; shape characteristics description methods based on Fourier descriptor operator is more easy to shape classification.
Research on Privacy Preserving Classification Algorithm
Authors: Ren Xun Yi , Yuan Wu
Published: January 2015

In the process of data mining, how to operate the data mining as well as protect the private data is a problem must be solved. This paper proposed an improvement of decision tree classification algorithm. Homomorphism encryption system, digital envelopes technology and secret sorting are applied to protect the data privacy. Our contribution is a privacy preserving protocol consist of homomorphism encryption system and secret sorting. Analysis shows that this algorithm can get right results as well as protect the privacy of the private data.
Study on Prediction Model of Grain Yield Based on Principal Component Analysis and BP Neural Network
Authors: Xu Xing Mei , Cao Li Ying , Zhou Jing
Published: January 2015

Taking the grain yield data from 1980 to 2012 of Jilin Province for example, this paper analyzes the main factors that influences the grain yield based on the principle component analysis method. According to these main factors, the input samples of BP neutral network are definite. Thereby, the BP neutral networks could be trained to predict. The results show that the fertilizer consumption, large cattle head number, end grain sowing area, effective irrigation area and rural per capita living space are the main effect factor on grain yield. The BP neural network was built by using it as the input samples. The number of input nodes of the network is determined. Then build the prediction model of grain production in Jilin province. The simulation results show that, the average error of prediction results of BP neural network model based on principal component analysis is 4.48%.
The Selection and Evaluation of Manufacturing Partner Based on AHP-FUZZY and Genetic Algorithm
Authors: Chen Hong Rong , Qin Zhi Guang , Liao Lin Zhi , Chen Qi , Wang Hong
Published: January 2015

The essence of virtual enterprise partner selection in agile manufacturing is optimization problem. Aiming at the optimization selection feature of virtual enterprise manufacturing partner, a qualitative and quantitative combination method is proposed to solve the problem of partner selection by combination of AHP-FUZZY and genetic algorithm. At last, a practical example will be used to demonstrate.