bluuebunny/crossref_metadata_2025 huggingface dataset:
Emerging Role of Technology in Health Education for Youth
Authors: Manzoor Amir
Published: September 2016

The Information Technology (IT) produces significant impact on the emotional and social health of young people. It is obvious that IT is playing an increasingly important part in people's lives. This chapter reviews the current state of youth health and the role of digital landscapes in health education of youth. The chapter also provides insight into how youth, particularly youth of color, use technology to learn, communicate, and discuss various health-related issues. Specific technology needs and usage patterns are identified and success of various initiatives of use of technology for health educations is assessed. Various implications and recommendations are provided for optimizing technology use in young people health education.
The Future of Healthcare
Authors: Vandenhouten Christine , Gallagher-Lepak Susan , Block Derryl E. , Kubsch Sylvia May , Strom Jan , Malakar Crystalmichelle L.
Published: September 2016

The U.S. healthcare environment is undergoing rapid change. New policies have reshaped healthcare through reimbursement models focused on access and quality. Advocating for policies that improve population health is important for health professionals and students. For this reason, educators need to know how to prepare students to be active in the political process. Using the Civic Volunteerism Model, factors influencing nursing and public health students' political participation were examined. Both groups had relatively low levels of political participation and differences in types of political activities. The best predictor of political participation was found to be psychological engagement (e.g., political efficacy, partisanship, political interest). Students were more politically active if they attended school part-time, employed more than part-time, and were non-traditional students. Suggested educational strategies and use of social media were discussed. Further exploration of social media as a source of political information and recruitment is recommended.
The Consistence of Checkpointing and Rollback Recovery Scheme
Authors: Xu Zhenpeng , Chen Hairong , Zeng Weini
Published: September 2016

For the traditional distributed computing system, the related message logging conditions had specified to keep the state consistence among the distributed process. Since many new characteristics are introduced in the mobile computing system, the new sufficient logging requirement for mobile computing has to be specified, to avoid the possible state inconsistence among the mobile nodes and the static nodes during the rollback recovery. Firstly, the related definitions of the inconsistence among the process state and the nondeterministic event were extended in the paper, independent of the specific log-based fault tolerant scheme. Finally, a novel particular logging consistency condition was derived based on the extended definitions and Piece-Wise Deterministic model for the mobile computing system. By contrast, the proposal is a practical and efficient constraint for mobile computing upon the possible failures.
Hybrid Log-based Fault Tolerant Scheme for Mobile Computing System
Authors: Xu Zhenpeng , Chen Hairong , Zeng Weini
Published: September 2016

Many new characteristics are introduced in the mobile computing system, such as mobility, disconnections, finite power source, vulnerable to physical damage, lack of stable storage. Many log-based rollback recovery fault tolerant schemes were proposed according to the characteristics. However, these schemes may still lead to dramatic loss of computing performance in failure-free or inconsistent recovery after the process fault. In this paper, a hybrid log-based fault tolerant scheme is proposed combining the checkpointing mechanism with the message logging mechanism. The checkpoint, the logs and the happened-before relations are logged synchronously into the memory at local mobile hosts temporarily, and asynchronously into the persistent disk storage in the form of the antecedence graph at local mobile support station. The proposal supports the independent and propagated consistent recovery. By contrast, the results show that the proposal incurs a lower failure-free overhead on the premise of the consistent recoverability.
Computing of the Ground State Energy of a Hydrogen Like Impurity in a Spherical Quantum Dot using QPSO Algorithm
Authors: Omran Mohsen Samet
Published: September 2016

In this work, quantum particle swarm optimization (QPSO1) algorithm method is applied to the problem of impurity at the center of a spherical quantum dot for infinite confining potential case. For this purpose, a trial variational wave function is considered for ground state, and then energy values are calculated as a function of the radius of a spherical quantum dot. Also, the evolution of the energy eigenvalue for different dot radii and different optimized parameter is determined. The energy converges remarkably fast, after a few numbers of iteration. In comparison with the two other available methods, standard variational procedure and genetic algorithm method (GA), the results coming out from QPSO algorithm are in more satisfactory agreement with the real values.
Teaching Supply Chain Management Using an Innovative Practical Game
Authors: Vanany Iwan , Syamil Ahmad
Published: September 2016

This paper presents a new practical game which helps undergraduate students to understand how the concept of supply chain management (SCM) works. The game uses a simple supply chain structure incorporating three entities of the supply chain: supplier, plant, and customer. The game employs a set of toy building blocks such as LEGO® blocks and has the rules of the game, responsibility of each player, product descriptions and bill of materials. This competitive game is used supply chain cost as the measuring to determine the winner team of the game and the Bloom's taxonomy as guidelines to develop the assessment testing based on the learning objectives of courses. This proposed board game has been tested by many undergraduate students who are taking SCM and Logistics Management courses. The results show that the students who played the game reached the higher scores of assessment testing than students who didn't play the game. Furthermore, most students have also positive view about this game.
Online Shopping
Authors: Shoaib Muneeza , Sayani Hameedah
Published: September 2016

The study aims to investigate the perceptions of the UAE digital natives regarding web vendors, and online privacy and security, that in turn determine their online shopping intentions. Despite exponential growth in e-commerce in the GCC in general and UAE in particular, and favorable economic and demographic factors, research in this realm is sparse. This study attempts to fill this void. More than 200 respondents aged between 18-30 years are surveyed and data is collected on their perceptions regarding various characteristics of web vendors, online security and privacy, and online shopping intentions. Principal Component Analysis and Binary Logistic Regression is used for dimension reduction and to examine association between the extracted factors and intention to shop online for the target group, respectively. The results highlight the importance of establishing positive brand image and adapting effective and viable privacy protection mechanisms to motivate consumers to shop online and use payment mechanisms other than cash on delivery.
Mission Design of Mobile Manipulators in Cluttered Environments for Service Applications
Authors: Xidias Elias K. , Azariadis Philip N. , Aspragathos Nikos A.
Published: September 2016

The purpose of this paper is to present a mission design approach for a service mobile manipulator which is moving and manipulating objects in partly known indoor environments. The mobile manipulator is requested to pick up and place objects on predefined places (stations). The proposed approach is based on the Bump-Surface concept to represent robot's environment through a single mathematical entity. The solution of the mission design problem is searched on a higher dimension Bump-Surface in such a way that its inverse image into the actual robot environment satisfies the given objectives and constraints. The problem's objectives consist of determining the best feasible paths for both the mobile platform and for the manipulator's end-effector so that all the stations are served at the lowest possible cost. Simulation examples are presented to show the effectiveness of the presented approach.
Constructing and Deconstructing Gender in Second Life
Authors: Ferreira Cátia , Ganito Carla
Published: September 2016

Digital games are cultural representations that convey the gender system. The narratives of gender that have shaped the gaming industry since the 1980s were influenced by gender stereotypes. The representation of the female, although based on stereotypes, has evolved hand in hand with the representation of women in other media. But what happens when players are given the opportunity to develop their digital representatives? Virtual worlds are among the online games that allow a higher degree of personalization of the avatar and, in order to contribute to a better understanding of how gender identities are being performed within these environments, this paper will present a case study of Second Life. A qualitative methodology was used based on netnographic research. The data collection methods included participant observation and auto-netnography. The researchers would like to propose that to examine how gender is represented in games that enable the creation of the avatar allows to deepen the analysis on the relationship that has been established between gender and digital games.
A Cultural Model of Online Banking Adoption
Authors: Huang Leelien Ken
Published: September 2016

Because the technology acceptance model (TAM) may not be applicable to all cultures, conducting studies from a cultural perspective to support research on the adoption of online banking can contribute to the TAM literature. A research framework based on the extended TAM is developed to examine the effects of efficacy (computer self-efficacy), social status (subjective norms) and belief variables (perceived usefulness and ease of use) on customers' adoption intentions. The effect of the interaction between the cultural value of long-term orientation and the TAM is examined. A voluntary survey involving a total of 376 potential adopters was conducted in an online banking setting in Taiwan. The results confirm previous TAM findings that both efficacy and belief variables have significantly positive direct and indirect effects on adoption, but under the cultural influence of long-term orientation, customers remain hesitant to use online banking because they are more concerned with face-to-face long-term bank relationships to ensure future gratification than with current social status.
Cellular Automata
Authors: Bhardwaj Rupali , Upadhyay Anil
Published: September 2016

Cellular automata (CA) are discrete dynamical systems consist of a regular finite grid of cell; each cell encapsulating an equal portion of the state, and arranged spatially in a regular fashion to form an n-dimensional lattice. A cellular automata is like computers, data represented by initial configurations which is processed by time evolution to produce output. This paper is an empirical study of elementary cellular automata which includes concepts of rule equivalence, evolution of cellular automata and classification of cellular automata. In addition, explanation of behaviour of cellular automata is revealed through example.
Vigotski e a filosofia da linguagem humboldtiana: Um diálogo interdisciplinar
Authors: Venuto Arthur , Gerken Carlos Henrique De Souza
Published: September 2016

O presente artigo busca recuperar parte do contexto dialógico no qual Vigotski construiu sua teoria sobre a relação entre pensamento e linguagem. Nesse contexto, discutimos a forma a partir da qual Vigotski trabalhou duas questões centrais da filosofia da linguagem humboldtiana: a origem da linguagem e a relação entre linguagem e concepção de mundo. A análise desses aspectos permitiu demarcar um universo dialógico interdisciplinar entre Vigotski e Humboldt, indicando zonas de aproximação e de afastamento entre as perspectivas desses autores. Consideramos que a psicologia histórico-cultural de Vigotski, fundamentada no materialismo histórico dialético, promove uma inversão dialética na filosofia da linguagem de Humboldt, ressaltando uma compreensão da linguagem como prática social objetivada. Assim, é possível indicar que a perspectiva vigotskiana acerca da origem da linguagem e da construção de uma concepção de mundo representa uma superação dialética em relação às proposições de Humboldt, uma vez que considera a linguagem um elemento concreto e objetivo, que se modifica no devir histórico e guarda estreitas relações com a base material da qual é proveniente.
A atuação do psicólogo nos Serviços de Acolhimento Institucional de crianças e adolescentes
Authors: Moreira Tabita Aija Silva , Paiva Ilana Lemos de
Published: September 2016

As atividades a serem desenvolvidas pelos psicólogos nos Serviços de Acolhimento são sobremaneira importantes para a elaboração e desenvolvimento do projeto político-pedagógico desses serviços. O objetivo deste estudo foi investigar a atuação profissional dos psicólogos no âmbito da assistência a crianças e adolescentes em Serviços de Acolhimento da região metropolitana de uma capital brasileira. Foram realizadas visitas às instituições e entrevistas com os psicólogos, de acordo com um roteiro semiestruturado. Para a análise dos dados foi utilizada a análise de conteúdo temática e um software de análise de dados qualitativos. O estudo aponta a recente entrada do psicólogo nos Serviços, aliada à considerável rotatividade desses profissionais. Foi observado um movimento dos psicólogos em distanciar-se de práticas assistencialistas ou repressivas. Entretanto, foi verificada a ausência de espaços que proporcionem o compartilhamento de reflexões entre os profissionais e a dificuldade em envolver as famílias nos processos de acolhimento e reinserção familiar.
Cine y psicología: un análisis acerca de los procesos de subjetivación en la contemporaneidad
Authors: De Carvalho Paulo Roberto , Passini Pedro Mestre , Baduy Renato Staevie
Published: September 2016

Desde o início do século XX, o cinema e a Psicologia tornaram-se uma presença constante nas sociedades capitalistas e, de modo particular, nas grandes cidades, inscrevendo-se no cotidiano das populações. Que efeitos a exibição cinematográfica produziu e produz na constituição dos sujeitos? Como a Psicologia se posiciona perante as transformações subjetivas que o cinema provoca? O objetivo deste artigo consiste em examinar a trajetória da Psicologia que, reafirmando sistematicamente a unidade do sujeito no conceito de personalidade, perde de vista a multiplicidade inerente à subjetividade que o cinema evidencia. De modo complementar, cabe ainda identificar os processos de subjetivação que ganham suporte à medida que o cinema se populariza. A análise dessa relação entre cinema e psicologia justifica-se pela forte presença do cinema nas sociedades atuais, incidindo nos processos de subjetivação. Tais processos podem ser caracterizados como uma multiplicidade de efeitos irredutíveis a uma unificação, uma vez que o cinema possibilita múltiplas identificações simultâneas e com diferentes personagens. Para a realização deste estudo foi adotado o procedimento de pesquisa de natureza qualitativa voltado para a compreensão das relações entre o cinema e a Psicologia em uma perspectiva histórica. Como resultado parcial desta pesquisa teórica, chegou-se à constatação de que no decorrer do século XX a Psicologia transformou-se, adotando concepções de personalidade nas quais a multiplicidade prevalece. Assim, emergem vertentes teóricas que admitem que a heterogeneidade e a complexidade dos sujeitos não são compatíveis com o enfoque unificador da personalidade que prevalecia na Psicologia desde o início do século.
Correlatos dos comportamentos antissociais limitados a adolescencia e dos comportamentos antissociais persistentes
Authors: Silveira Katia Simone da Silva , Zappe Jana Gonçalves , Dias Ana Cristina Garcia
Published: September 2016

Os comportamentos antissociais podem ser categorizados como persistentes (quando iniciam na infância e tendem a prosseguir até a fase adulta) e transitórios (quando se encontram restritos a uma fase do desenvolvimento, em geral a adolescência). Nesse sentido, o objetivo principal deste trabalho é revisar estudos que apresentam evidências empíricas da pertinência do modelo tipológico de Moffitt (1993), cuja análise pode oferecer elementos que possibilitem diferenciar os comportamentos antissociais transitórios dos persistentes. A busca foi realizada na base de dados PsycINFO, em que foram recuperados 162 trabalhos, dentre os quais 14 fizeram parte deste estudo. Os achados sugerem que falta de maturidade, especialmente junto aos pares, disparidade entre o crescimento corporal e maturidade psicológica e social são fenômenos que podem impulsionar comportamentos antissociais transitórios na adolescência. Já os comportamentos antissociais persistentes têm sua origem na infância devido a múltiplas variáveis que podem contribuir para a produção desses comportamentos (violência familiar, problemas escolares, neurológicos, etc). Acredita-se que quanto mais cedo os comportamentos antissociais persistentes são identificados, maiores são as chances de sucesso nas ações e intervenções terapêuticas.
Problematizando as noções de vulnerabilidade e risco social no cotidiano do SUAS
Authors: Romagnoli Roberta Carvalho
Published: September 2016

Este ensaio, elaborado a partir das reflexões da autora, tem como objetivo discutir as noções de vulnerabilidade e risco social que integram os documentos do Sistema Único de Assistência Social (SUAS), enfocando os efeitos que emergem do uso dessas noções no cotidiano dos profissionais em suas intervenções com as famílias. Nesse contexto, problematizam-se os riscos presentes nessas conexões que podem tornar os profissionais vulneráveis e cujo desconhecimento pode diminuir a capacidade das equipes e também o protagonismo e a autonomia das famílias. São eles o risco da psicologização, o risco da desqualificação, o risco da sobrecarga das mulheres e o risco da ressonância da vulnerabilidade. Concluí-se  que o maior risco é o risco de maltrato à vida que se sustenta em atuações que podem encobrir práticas morais e resultar em relações de tutela e de assujeitamentos, impedindo relações de cuidado que se efetuam na intercessão, no encontro entre modelos e forças, permitindo a consolidação do SUAS de forma potente.
CUIDADO AMBIENTAL E RESPONSABILIDADE: POSSÍVEL DIÁLOGO ENTRE PSICOLOGIA AMBIENTAL E LOGOTERAPIA
Authors: Corrêa Diogo Arnaldo , Bassani Marlise Aparecida
Published: September 2016

O cuidado ambiental vem sendo marcado pela tônica da conservação e da promoção da sustentabilidade. A premente necessidade de um dado compromisso e educação ambiental e de condutas pró-ambientais vem sendo defendida em vários contextos: na mídia, nas políticas públicas, por meio de campanhas sazonais. Todavia, pouco se descreve acerca do sentido presente nos modos de cuidado configurados a partir da inter-relação pessoa-ambiente. Nesta perspectiva, este estudo objetivou promover um possível diálogo a partir das contribuições da Psicologia Ambiental e da Logoterapia visando aproximar a noção de cuidado ambiental, delineada pela Psicologia Ambiental, à ideia de responsabilidade, como defendida pela Logoterapia, por meio de uma revisão bibliográfica. As articulações propositadas corroboraram, portanto, para acenar que a relação pessoa-ambiente pode ser arraigada em qualidade se a responsabilidade é reconhecida em sua propriedade de potencial humano, o que pode favorecer na emergência do sentido das atitudes e condutas pró-ambientais e explicitar o caráter de tarefa única e irrepetível inerente à vida.
A PERCEPÇÃO DA PARENTALIDADE DE CÔNJUGES ENGAJADOS EM CASAMENTOS DE LONGA DURAÇÃO
Authors: Grizólio Talita Cristina , Scorsolini-Comin Fabio , Santos Manoel Antônio dos
Published: September 2016

Tendo em vista o debate cada vez mais contemporâneo acerca das relações entre parentalidade e conjugalidade, o objetivo deste estudo foi compreender a percepção da parentalidade de cônjuges engajados em casamentos de longa duração. Foram entrevistados 25 casais unidos, em média, havia 39,5 anos, com média de idade de 64,1 anos e com três a quatro filhos. A partir de entrevistas audiogravadas e submetidas à análise de conteúdo, os resultados destacaram a parentalidade como sinônimo de apoio, responsabilidade e aprendizado para o casal, como forma de oferecer bom exemplo para os descendentes e também como atributo a ser admirado no parceiro. Conclui-se que a parentalidade é percebida como uma exigência no processo de desenvolvimento dos casais longevos. A conjugalidade de longa duração repousa sobre alguns valores tradicionais, como a criação dos filhos com pouca experimentação de novos papéis e de possibilidades de releituras acerca do que é ser família.
REPRESENTAÇÕES SOCIAIS NO CONTEXTO DO DIABETES MELLITUS
Authors: Costa Fabrycianne Gonçalves , Coutinho Maria da Penha De Lima
Published: September 2016

Este estudo objetivou apreender as representações sociais, elaboradas por pessoas que tenham diabetes, acerca da doença. Participaram do estudo 31 pessoas com idades entre 34 a 76 anos (M= 55,68; DP= 11,6), que responderam a um questionário biossociodemográfico e à entrevista em profundidade. Os dados foram processados pelo software Alceste e analisados por meio da estatística descritiva e análise lexical. Os participantes apontaram em suas representações sociais a falta de conhecimentos acerca do diabetes, destacando a surpresa do diagnóstico, e suas representações, também, estiveram ancoradas em fatores nutricionais e emocionais, os quais foram permeados por emoções de cunho negativo. Os participantes que utilizavam insulina ratificaram noções de responsabilidades, voltadas para consequências da doença, como é o caso da amputação de membros, o grupo que não a utilizava descreveu a doença atrelada à tríade do tratamento. Os resultados apontam para a importância de uma abordagem interdisciplinar que enfoque o suporte psicossociológico, voltado para a elaboração de estratégias que possam ser adotadas frente ao controle e cuidado do diabetes.
Influence of the Unit Cell Geometrical Parameter to the Mechanical Properties of Ti6Al4V Open-Porous Scaffolds Manufactured by Selective Laser Melting
Authors: Wang Ying , Chen Ji Min , Yuan Yan Ping
Published: September 2016

Selective laser melting (SLM) are getting more and more established as reliable methods for producing open-porous scaffolds with accurately controlled pore size, strut size, and porosity. However, the optimal geometrical parameter of the unit cell by SLM remained unclear. In this study, we evaluated the effect of unit geometrical parameters to the mechanical properties of porous scaffolds by finite element analysis method and Mechanical testing method. Six rhombic dodecahedron unit cells were designed with different geometrical parameter and the scaffolds manufactured by SLM using Ti6Al4V. The compression testing results show that the specimens with the same pore size, the elastic modulus and the strength are increased with increasing strut size and the specimens with the same strut size, the elastic modulus and the strength are decreased with increasing strut size. The porosity can be calculated by pore size and strut size. The compression strength of the porous scaffolds is 114MPa~258MPa and the quasi-elastic gradient is 3.18Gpa~8.64Gpa, which are similar to human bone. The simulation values are different from the experiment values but the variation tendency is in accordance.
Impact of Pick Skew and Tilt on Cutting Geometry
Authors: Sun Yong , Li Xing Sheng
Published: September 2016

Cutterheads equipped with picks are commonly used for mechanized excavation in civil and mining industries. Attack, tilt and skew angles are three key parameters that affect the performance of the picks and the cutterheads. Therefore, it is necessary to optimize these three types of angles. The optimal values of these angles are often obtained through theoretical analysis and/or tests. However, because these angles are set sequentially during manufacturing and one angle which is set before another will be changed by the latter, the final angles of a pick can be different from its designed values. To ensure the required angles, it is essential to calculate the corresponding value of each angle after each step in setup. As an expansion to our previous study which only considered attack and tilt angles, in this paper we developed formulas to take into account all three types of angles.
Research on the Relationship between Tool Setting Error and Turning Accuracy
Authors: Yao Ji Tao
Published: September 2016

The tool setting error model is put forward in this paper, according to the characteristics of the numerical control lathe tool setting error. On the basis of analyzing the influence factors of tool setting error, the influence of the tool setting error on the part shape error is discussed. Analysis shows that the shape error and size error is produced by the tool setting error, and the error will increase with the diameter size of tool setting error, the cutter diameter, amount of feed and other factors.
Manufacture of the Glass Nanopore Based on Laser Heating and Experimental Research
Authors: Zhang Ya Fei , Yao Zhi Yuan , Wu Bi Cheng
Published: September 2016

The glass nanopore produced by the physical method has better physical characteristics, higher strength, stronger stability, longer life and other significant features compared with the chemical method. The purpose of this paper is to study DNA sequencing (973 project) to provide experimental basis for preparation of glass capillary 5nm 3D nanochannel In this paper, we design a set of glass capillary tension system which is controlled by laser heating and linear ultrasonic motor and produced successfully the device for the preparation of nanopore below 50 nm. In addition, the use of micro droplet generation system has carried out preliminary characterization of nanopore drawn devices. Seen from the characterization, the nanopore device fabricated can indeed produce a through-hole.
Thermal Resistance of a Rotating Closed-Loop Pulsating Heat Pipe: Effect of Centrifugal Accelerations
Authors: Kammuang-Lue Niti , Phommavongsa Deuansavanh , On-Ai Kritsada , Sakulchangsatjatai Phrut , Terdtoon Pradit
Published: September 2016

Objective of this study is to experimentally investigate the effect of centrifugal accelerations on thermal resistance of the rotating closed-loop pulsating heat pipe (RCLPHP). The RCLPHPs were made of a copper tube with internal diameter of 1.50 and 1.78 mm and bent into flower’s petal-shape and arranged into a circle with 11 turns. The evaporator section located at the outer end of the bundle while the condenser section placed around the center of the RCLPHP with no adiabatic section. Both sections had an identical length of 50 mm. R123, and ethanol was filled as working fluid respectively. The RCLPHP was installed on the test rig and it was rotated by the DC motor at the centrifugal acceleration of 0.5, 1, 3, 5, 10, and 20 times of the gravitational acceleration considering at the connection between the evaporator and condenser section. Heat input was generated by electrical annular-plate heaters and varied from 30 to 50, 100, 150, and 200 W. Ceramic papers, wooden plate, and insulation sheet were consecutively attached on the outer side of the heaters in order to prevent the heat loss from the heater. It can be concluded that when the centrifugal acceleration increases, the thermal resistance continuously decreases since the condensate flows back to the evaporator section more rapidly.
Extension Evaluation Method in the Selection of Electromagnetic Brake System
Authors: Liu Cun Xiang , Liu Xue Jun , Huang Yun Qi , Lin Tu Gan
Published: September 2016

Electromagnetic brake system can make the vehicle brake effectively, there were many factors affect the system’s performance, so it was very important to find some method to evaluate the system properly. Firstly, the article introduced the concept, calculation method of the electromagnetic brake and friction brake integrated system evaluation. Through a simple example described extension assessment method in the integrated system selection evaluation, extension assessment method was applied. Finally, during the selection of multi-program evaluation, according to the index weight binding extension assessment method, we got the best selection program.
Study of 3D Tolerance Modeling Method for Complex Feature Geometric Variations
Authors: Peng He Ping , Lu Wen Long
Published: September 2016

The aim of this paper is to present a 3D tolerance mathematical model for complex feature geometric variations oriented the new generation Geometrical Product Specifications (GPS). According to the definition of geometric feature and taxonomy of geometric variations in the new generation GPS system, the proposed model is based on the small displacements torsor (SDT) concept, and the geometric deviations treated as relative location or rotation variations between the nominal geometry feature and the associated feature are expressed by the SDT parameters. Moreover, the tolerance models for several kinds of complex feature geometric variations are constructed and discussed. Finally, a numerical example is given to illustrate the application of the proposed tolerance model, and the results indicate that the proposed model is capable in dimensional and geometrical tolerances modeling. The model completely based on the mathematics foundation is in compliance with the current GPS standards system.
Research on the Construction of "Metal Materials and Heat Treatment" Network Course to Higher Vocational Colleges under the Background of Big Data
Authors: Wang Zhi Ling
Published: September 2016

With the development of social information in the background of big data, this paper gives the practical problems in the construction of network course of "metal materials and heat treatment". The aim of the study established on the basis of the Internet will provide us more comprehensive supports and services, and more friendly practical systems in teaching. Our research will build a public open platform for the cultivation of high-quality talents and the promotion of lifelong learning process. This paper has focused on the theoretical value of the network course construction, construction objectives, the content and advantages of the construction. The results of this paper are helpful to improve the teaching effects of the course of "metal materials and heat treatment" in vocational colleges.
Hydrologic Analysis of Highway Bridge Crossing Tributary
Authors: Tian Hua , Huang Jia Dong
Published: September 2016

In order to improve the accuracy of hydrologic calculation of highway bridge crossing tributary, two calculation methods were listed in this paper. Based on the analysis and comparison of the hydrologic calculation of bridge design flood flow and water level at certain frequency crossing tributaries in the main river system, the hydrologic analysis of bridge is introduced. The important applications of hydrologic analysis of highway bridge community along river that need to be solved are discussed.
Study of Effective Thermal Conductivity of Glazed Hollow Bead Concrete
Authors: Zhang Bing , Cheng Zhong Qing
Published: September 2016

Based on analyzing the mechanism of thermal conductivity of glazed hollow bead concrete, this paper divides the channels of thermal conductivity in concrete, constructs the model of thermal conductivity coefficient based on the Theory of Minimum Thermal Resistance, and confirms the model by using the data of other related literatures and the data of our own experiment. The consequence indicates that this model can calculate the thermal conductivity coefficient under arid state exactly. In order to improve the accuracy of this model, we should take the shape of framework, the interface thermal resistance between concrete and framework into consideration
Hydrothermal Synthesis and Luminescent Properties of BiPO4:Eu3+ Phosphors
Authors: Ren Sha , Guo Li Na
Published: September 2016

Eu3+ doped BiPO4 red phosphor was prepared by hydrothermal method using C2H6O2 as dispersant. The structure and composition of the samples were characterized by IR and XRD. The results showed that with the increase of hydrothermal temperature and hydrothermal time, the crystal structure of BiPO4 changed from hexagonal phase to monoclinic phase. The luminescence properties of Eu3+ doped BiPO4 were characterized by excitation spectra and emission spectra. The results showed that both monoclinic phase phosphor and hexagonal phase phosphor can be light emitting. Different crystal structures of Eu3+ doped BiPO4 samples had the same emission peaks in emission spectra excited by blue light wavelength of 395 nm, which corresponded to the 5D0→7F1 transition at 590nm and 5D0→7F2 transition at 614nm of Eu3+. The luminescence intensity of monoclinic phase Eu3+ doped BiPO4 was significantly stronger than the hexagonal phase sample’s luminescence intensity.
Research of High-Speed Rail Express Delivery Market Demand Prediction Problem in China
Authors: Shao Li Hua , Zhao Yu
Published: September 2016

The rapid development of high-speed railway brought tremendous opportunity for the quick transport of goods development. Great efforts to build high-speed rail not only release the existing railway transport capacity, but also provide a new choice to the quick transport of goods. This paper choose some factors to analysis which will influence the express transport, using time series forecasting prediction and gray combination forecasting method to predict results of the 2020 Express Freight shipments. By selecting the integrity, economy, efficiency, convenience, punctuality, service and environmental friendliness those seven Utility Index, established Logit cargo flow rate balancing model, to concluded that high-speed fast freight volume in 2020, which provide references for high-speed rail fast cargo transportation organization.
Properties of a Sandwich Thermal Insulation Composite with Silica Aerogel
Authors: Fořt Jan , Pavlíková Milena , Pokorný Jaroslav , Trník Anton , Pavlík Zbyšek
Published: September 2016

Properties of a new type of sandwich composite based on magnesium board, silica aerogel thermal insulation layer, and water vapour barrier are experimentally analysed in the paper. For the basic characterization of the studied material, bulk density, matrix density, and total open porosity are measured. Among the thermal properties, thermal conductivity, thermal diffusivity, and volumetric heat capacity are accessed. Water vapour transmission properties are determined using the dry-cup and wet-cup arrangements of the cup method. In order to describe the liquid moisture transport, water absorption coefficient and apparent moisture diffusivity are calculated based on the data obtained from the free water intake experiment based on the sorptivity concept. Ability of the tested material to accumulate water vapour is described by the sorption and desorption isotherms measured using a dynamic vapour sorption device. Mechanical resistivity of the tested composite is characterized by its compressive and flexural strength. Additionally, in order to get information on material performance at high temperature exposure, simultaneous TG and DSC analysis is done. The obtained data gives clear evidence on sandwich performance and proved its applicability in interior thermal insulation systems.
Materials and Manufacturing Technology for Aerospace Application
Authors: Lee Ho Sung , No Kookil
Published: September 2016

This paper gives an overview of current work in materials and manufacturing technology for aerospace application. Finding the best material to use for a particular application is not simple and it depends on many factors including mission requirements like performance and safety, design requirements, strength to density ratio, operating temperature, and material technology prospects like current state of affordable materials/processes technologies. Materials with high specific strength have long been popular with the aerospace industry, as aerospace vehicle made from such materials provide the required strength with less weight, thereby increasing payload and reducing operating cost. Typical examples are polymer matrix composite and aluminum-lithium alloys for aerospace structures. In liquid rocket propulsion systems, improved high-temperature capability offers the greatest performance payoff, with improved mechanical strength and lower weight also being important. For spacecraft, materials with improved resistance to radiation and atomic oxygen are required. Since before a material can be used in an aerospace system, it must be qualified for use, materials qualification procedure is also presented with an example of shared data.
Finite Element Analysis Model of Corrosion Fatigue for TIG Welding Workpiece
Authors: Limwongsakorn Somsak , Nakkiew Wasawat , Baisukhan Adirek
Published: September 2016

The proposed finite element analysis (FEA) model was constructed using FEA simulation software, ANSYS program, for determining effects of corrosion fatigue (CF) from TIG welding process on AISI 304 stainless steel workpiece. The FEA model of TIG welding process was developed from Goldak's double ellipsoid moving heat source. In this paper, the residual stress results obtained from the FEA model were consistent with results from the X-ray diffraction (XRD) method. The residual stress was further used as an input in the next step of corrosion fatigue analysis. The predictive CF life result obtained from the FEA CF model were consistent with the value obtained from stress-life curve (S-N curve) from the reference literaturature. Therefore, the proposed FEA of CF model was then used for predicting the corrosion fatigue life on TIG welding workpiece, the results from the model showed the corrosion fatigue life of 1,794 cycles with testing condition of the frequency ( f ) = 0.1 Hz and the equivalent load of 67.5 kN (equal to 150 MPa) with R = 0.25.
Influences of Temperature and Suction on Pile Capacity in Homogeneous Silt Layer
Authors: Uchaipichat Anuchit
Published: September 2016

This paper presents the simulation results of variation in pile capacity with temperature and suction. The end bearing, shaft friction and ultimate bearing capacities at various values temperature and matric suction were simulated. The simulation results show that the end bearing capacity decreased with increasing temperature but increased with increasing matric suction. The results also show that, with increasing temperature, the shaft friction and ultimate bearing capacities decreased at low to moderate level of suction but increased at low temperature and high level of suction. With increasing matric suction, the shaft friction and ultimate bearing capacities increased at moderate to high level of temperature but decreased at low temperature and high level of suction.
Effect of High-Frequency Microwaves on the Microhardness of Alumina Ceramic
Authors: Sudiana Inyoman Nyoman , Mitsudo Seitaro , Firihu Muhammad Zamrun , Aripin Haji
Published: September 2016

Microwave processing of ceramics has attracted much research interest because of its significant advantages over the conventional one. Most researchers compared processes that occurred during the microwave and conventional heating at the same temperature and time. The enhancements found in the former method are indicated as a microwave effect which is usually used for explaining the phenomena in microwave processing. Numerous recent studies have been focused on the effect to elucidate the microwave interaction mechanism with materials. This paper will present effect of very high microwave frequency to hardness of sintered alumina. The sintering results were taken from a series of experiments to study the microwave effect on properties of alumina. Microwave sintering was performed by using the 300 GHz microwave sintering system. Some possible physical mechanisms are also discussed.
Characteristics of Machining Parameters on WEDM Titanium Alloy
Authors: Saedon J.B. , Jaafar Norkamal , Yahaya Mohd Azman
Published: September 2016

Wire electrical discharge machining is a material removal process of electrically conductive materials by the thermo-electric source of energy. This kind of machining extensively used in machining of materials with highly precision productivity. This work presents the machining of titanium alloy (TI-6AL-4V) using wire electro-discharge machining with brass wire diameter 0.5mm.The objective of this work is to study the influence of three machining parameters namely peak current, pulse off time and wire tension to cutting rate, material removal rate, surface roughness and kerf width followed by suggesting the best operating parameters towards good machining characteristics. A full factorial experimental design was used with variation of peak current, feed rate and wire tension, with results evaluated using analysis of variance techniques. Parameter levels were chosen based on best practice and results from preliminary testing. Main effects plots and percentage contribution ratios are included for the main factors and their interactions.
The influence of the net rainfall mixed Curve Number – Green Ampt procedure in flood hazard mapping: a case study in Central Italy
Authors: Petroselli Andrea , Arcangeletti Ettore , Allegrini Elena , Romano Nunzio , Grimaldi Salvatore
Published: September 2016

A net rainfall estimation procedure, referred to as Curve-Number For Green-Ampt (CN4GA), combining the Soil Conservation Service - Curve Number (SCS-CN) method and the Green and Ampt (GA) infiltration equation was recently developed, aiming to distribute at subdaily time resolution the information provided by the SCS-CN method. The initial abstraction and the total volume of rainfall provided by the SCS-CN method are used to identify the ponding time and to quantify the hydraulic conductivity parameter of the GA equation, whereas the GA infiltration model distributes the total volume of the rainfall excess provided by the SCS-CN method. In this study we evaluate the proposed procedure with reference to a real case comparing the flood mapping obtained applying the event-based approach for two different net rainfall scenarios: the proposed CN4GA and the common SCS-CN. Results underline that the net rainfall estimation step can affect the final flood mapping result.
LiDAR derived high resolution topography: the next challenge for the analysis of terraces stability and vineyard soil erosion
Authors: Preti Federico , Tarolli Paolo , Dani Andrea , Calligaro Simone , Prosdocimi Massimo
Published: September 2016

The soil erosion in the vineyards is a critical issue that could affect their productivity, but also, when the cultivation is organized in terraces, increase the risk due to derived slope failure processes. If terraces are not correctly designed or maintained, a progressively increasing of gully erosion affects the structure of the walls. The results of this process is the increasing of connectivity and runoff. In order to overcome such issues it is really important to recognize in detail all the surface drainage paths, thus providing a basis upon which develop a suitable drainage system or provide structural measures for the soil erosion risk mitigation. In the last few years, the airborne LiDAR technology led to a dramatic increase in terrain information. Airborne LiDAR and Terrestrial Laser Scanner derived high-resolution Digital Terrain Models (DTMs) have opened avenues for hydrologic and geomorphologic studies (Tarolli et al., 2009). In general, all the main surface process signatures are correctly recognized using a DTM with cell sizes of 1 m. However sub-meter grid sizes may be more suitable in those situations where the analysis of micro topography related to micro changes is critical for slope failures risk assessment or for the design of detailed drainage flow paths. The Terrestrial Laser Scanner (TLS) has been proven to be an useful tool for such detailed field survey. In this work, we test the effectiveness of high resolution topography derived by airborne LiDAR and TLS for the recognition of areas subject to soil erosion risk in a typical terraced vineyard landscape of “Chianti Classico” (Tuscany, Italy). The algorithm proposed by Tarolli et al. (2013), for the automatic recognition of anthropic feature induced flow direction changes, has been tested. The results underline the effectiveness of LiDAR and TLS data in the analysis of soil erosion signatures in vineyards, and indicate the high resolution topography as a useful tool to improve the land use management of such areas. The stability conditions have been analyzed under the influence of the measured geometry alterations of the wall structure.
Selective spraying of grapevine’s diseases by a modular agricultural robot
Authors: Oberti R. , Marchi M. , Tirelli P. , Calcante A. , Iriti M. , Hočevar M. , Baur J. , Pfaff J. , Schütz C. , Ulbrich H.
Published: September 2016

In current viticulture protection of grapevine is obtained with uniform distribution of fungicides, typically repeated according a regular calendar. This continuous protection approach can easily result in ten to fifteen treatments per season in vineyards of several wine-producing regions. Primary infections exhibit nevertheless discrete foci, with uneven spatial distribution. Hence it can be argued that detection of symptoms at early disease stages and their targeted treatment would reduce the spread of the infection to wider patches in the vineyard, while enabling reduced use of pesticides. Within the UE-project CROPS, a modular and multifunctional agricultural robot system for specialty crops is being developed and one of the tasks that has to accomplished is selective spraying of diseases. The robotic system setup integrates a six degrees of freedom manipulator, an optical sensor system and a precision spraying actuator. After a brief description of the requirements of the system, this contribution gives a detailed description of its components and discusses the results obtained in first experiments. As case study we consider here the automatic detection and selective spraying of grapevine canopy areas exhibiting symptoms of powdery mildew (Erysiphe necator), one of the major diseases for this crop. Based on optical sensing feedback, the precision spraying actuator is positioned by the manipulator to selectively and accurately apply pesticides solely to infected areas. Disease foci identification and localization is based on on-the-go processing of images sensed by a multispectral camera inspecting the vertical structure of the grapevine canopy. At the end of the manipulator arm is located the precision spraying actuator, constituted by an axial fan with a flow straightener and an axially mounted spraying nozzle. The sprayer can deliver an air-carrier flow with an adjustable velocity, producing a circular spraying pattern of a constant diameter of 0.15 m over a wide range of spraying distances. A first experiment was conducted in an experimental greenhouse, where vineyard canopy conditions were recreated by aligning plants of grapevine grown in pots. Within the recreated canopy, diseased plants with different levels of disease symptoms were used as targets of automated selective spraying performed by the agricultural robot. The results of these experiments are discussed in view of a possible intelligent, close precision crop protection framework.