bluuebunny/crossref_metadata_2025 huggingface dataset:
La escuela de ciegos del Campo de la Leña, A Coruña: los inicios de la enseñanza especial en Galicia
Authors: Rodríguez Díaz Ana
Published: January 2015

Este artículo pretende mostrar la relevancia de la escuela de ciegos instaurada en la ciudad de A Coruña en el año 1895, por parte del presbítero José María Salgado. Esta escuela representa uno de los escasos establecimientos que, a finales del siglo XIX y principios del XX, se dedican en España a la educación de estos alumnos. Igualmente, constituye una contribución significativa en la historia de la enseñanza especial gallega. La escuela de Salgado figura como la segunda institución destinada a la instrucción de ciegos que se establece en Galicia y la primera que se establece en la ciudad de A Coruña. El presente estudio, abordado desde una perspectiva histórica, descriptiva y comparada, se ha fundamentado en fuentes archivísticas concretas, así como en la prensa histórica gallega y otras publicaciones históricas y actuales relativas a la educación especial. La indagación bibliográfica efectuada para el desarrollo del trabajo constata la escasez de estudios monográficos existentes sobre estas escuelas inauguradas a finales del siglo XIX. Las lagunas de información son grandes, lo mismo que el olvido al que han quedado relegados algunos de estos establecimientos, que han representado un hito en los inicios de la institucionalización de la enseñanza especial.

[gl] Este artigo pretende mostrar a relevancia da escola de cegos instaurada na cidade da Coruña no ano 1895 polo presbítero José María Salgado. Esta escola representa un dos poucos establecementos que, a finais do século XIX e principios do XX, se dedican en España á educación destes alumnos. Igualmente, constitúe unha contribución significativa na historia do ensino especial galego. A Escola de Salgado figura como a segunda institución destinada á instrución de cegos, que se establece en Galicia, e a primeira que se establece na cidade da Coruña. O presente estudo abordado dende unha perspectiva histórica, descritiva e comparada, fundamentouse en fontes arquivísticas concretas, así como na prensa histórica galega e outras publicacións históricas e actuáis relativas á educación especial. A indagación bibliográfica efectuada para o desenvolvemento do traballo constata a escaseza de estudos monográficos existentes sobre os Colexios e Escolas inaugurados a finais do século XIX. As lagoas de información son grandes, o mesmo que o esquecemento a que quedaron relegados algúns destes establecementos, que representaron un fito nos inicios institucionalización do ensino especial.
Missing in Mexico: Denied victims, neglected stories
Authors: Karl Sylvia
Published: January 2015

In this article, I will describe the mostly invisibilized “fight for rehumanization” of the families of the dehumanized disappeared of the Mexican Dirty War of the 1960s and 1970s. The conflictive memory politics in Mexico and the ambivalent transitional justice process led to processes of re-dehumanization for the families of the disappeared. Within these processes of clarification of past crimes, new spaces of violence emerged. The current “war on drugs” has caused an unprecedented number of new cases of disappearances. I will argue that there are continuities between the Dirty War in the past and the Dirty War practices within the present conflict. In this complex context of violence, the disappearances take place in a battlefield with blurred boundaries: disappearances for political reasons are intermingled with cases of disappearances due to organized crime and new fights for the rehumanization of the disappeared have evolved. In this climate of terror and fear, the families of the disappeared—those of the past and those of the present—are crucial counter-memory groups that object to official discourses that deny the crimes committed by the state.
Market Orientation, Customer Relationship Management (CRM) Implementation Intensity, and CRM Performance
Authors: Liew Bryan Soh Yuen , Ramayah T. , Yeap Jasmine A. L.
Published: January 2015

The Web hosting industry is characterized by the rapid growth of information technology trends as well as constantly growing competition. Market orientation and Customer Relationship Management (CRM) are thought of as key solutions to this predicament. Thus, the purpose of this study was to test the effect of market orientation on CRM implementation intensity and subsequently the effect of CRM implementation intensity on CRM performance. Data was collected via online questionnaires from 81 online Web hosting companies around the world and analyzed using Partial Least Squares structural equation modeling technique. The results indicated that market orientation had a significant positive impact on CRM implementation intensity and CRM implementation intensity had a direct positive influence on CRM performance. A test of mediation also confirmed that CRM implementation intensity mediated the relationship between market orientation and CRM performance. Implications of these findings are further explored.
Creating Cultural Analogues in Virtual Communities through Branding
Authors: Pennington Robert
Published: January 2015

This chapter shows how cultures construct analogues of actual environments, societies, communities, and the individuals who compose them. Analogues replace actual in human perception. Analogues engender further cultural development and renewal that produce higher order analogues in which the original actual may submerge into oblivion. Brands have evolved from representations of property to representations of consumers, but always expressing cultural value. As components of cultural discourse, brands have become an important mode of consumer communication, identifying and distinguishing consumers as social objects within consumer market culture. Virtual communities have evolved from telephonic verbal communication to highly interactive electronic media. Throughout this evolution, virtual communities have been analogues of actual communities to the extent that technology permits. Greater technological detail brings greater detail in the production of analogues. eBranding offers identity components in virtual consumer culture environments for transfer to actual consumer culture environments, resulting in brand viability and marketing success.
The Role of Individual Behavior and Social Influence in Customer Relation Management
Authors: Surma Jerzy
Published: January 2015

One of the crucial trends in business is to offer one-to-one personalized services. In this context, companies try to build customer relationship management systems based on the customer social relations and behavioral patterns. The key issue is predicting to which products or services a particular customer is likely to respond. Additionally, identifying peer-to-peer influence on social network sites is critical to a social media marketing strategies. That is why companies have to learn to understand their customer in the broader social context in order to build successful Customer Relationship Management (CRM) systems, which are described in this chapter. In those systems, the individual customer behavior patterns can be used to build an analytical customer profile. Based on the profile, a company might target a customer with a personalized message. In this chapter, the authors use four research studies in order to extensively present this issue.
Managing Service Consumer Behavior and Relationship Dynamics in Asia
Authors: Ndubisi Nelson Oly , Ali Siti Haryati Shaikh
Published: January 2015

Organizations, especially those in Asia, are increasingly appreciating the value of establishing closer and lasting relationship with customers. With greater access to information from research findings, industry practitioners are implementing different strategies for achieving this goal. This chapter evaluates dual strategies firms in Asia have been using in trying to build lasting relationship with customers, namely respect and rapport. The purpose of this chapter is to examine the concepts of respect and rapport and the effects on the quality of firm-customer relationship and customer loyalty. The chapter draws from existing literature and surveys customers of two service sectors in Asia. The research propositions connecting the two dimensions of interpersonal relationship (i.e. respect and rapport) with relationship quality and customer loyalty are tested and confirmed using standard data analysis procedure. The findings lead to research and managerial implications that conclude the chapter.
Can Zakat Institutions Adopt Consumer-Centric Knowledge Management Successfully to Alleviate Poverty?
Authors: Hussain Abu baker Ramadan Mohamed
Published: January 2015

Drawing upon Consumer-Centric Knowledge Management (CCKM) approach and poverty alleviation efforts, this chapter elaborates the adoption of these approaches in Zakat Institutions (ZI) in their search to alleviate poverty. It assesses the interrelationships of the two approaches in ZI considering the poor and needy as the main envisioned stakeholders. The investigation deliberates the landscape of poverty alleviation by key agents of knowledge change, reviewing their contributions to establish communities of practices in creating and sharing knowledge on poverty alleviation. Similarly, it relates major strategic focus of poverty alleviation to CCKM processes. It explores knowledge management gaps that could affect ZI outreach highlighting the main internal and external challenges. The substances of outreach stipulate the importance of poverty intelligence portfolio that utilizes key elements of CCKM, namely poor and needy intelligence, demand intelligence, situational intelligence, and networking intelligence. As a result, the effective engagement of ZI in the two approaches is valued with respect to knowledge on poverty alleviation.
Mobile Technology in Higher Education
Authors: Deyoe Meghan Morris , Newman Dianna L. , Lamendola Jessica M.
Published: January 2015

Innovative instructional strategies and approaches are in high demand in STEM higher education. Currently, interest lies in the integration of mobile technology within these settings to provide learning opportunities that are flexible and feasible enough to increase student understanding using critical inquiry. Although the positive impact of the use of mobile technology in many pilot settings is known, there are still numerous questions left unanswered in relation to the effectiveness of the use of mobile technology as it is replicated from developer across enthusiastic replicator use to required use. This chapter examines the replication and transferability patterns related to the use of a mobile technology device within and across multiple instructors, settings, context, and content areas. Key variables explored relate to student and instructor prior use and experience with the mobile technology, pedagogical goals, and similarly, content and context to original use.
Flying a Math Class?
Authors: Mavrou Katerina , Meletiou-Mavrotheris Maria
Published: January 2015

This chapter presents a pilot exploratory case study that seeks to bridge the classic gap between teacher preparation and practice by exploiting the affordances offered by digital simulations for contextualizing novice teachers' learning and pedagogy. Using the simulated classroom SimSchool as a virtual field experience, a teaching intervention focused on mathematics education and the use of technology was conducted in order to determine best practices. Both undergraduate and graduate education students participated in the study. The study explored participants' views on the experiences with the simulated environment. Interviews and self-reflection reports were used for data collection. Findings suggest that participants appreciated simulations as virtual environments that provide the opportunity to practice and experiment on particular teaching approaches in a safe environment. Nevertheless, they also express a number of concerns related to how they compare simulations with real classroom experiences and their interaction with virtual students, as well as some technical considerations. Simulations have a great potential to create reality-based learning contexts that foster opportunities for pre- and in-service teachers to improve their pedagogy. Thus, further research is required to unfold all aspects of such approaches.
Improving Novice Programmers' Skills through Playability and Pattern Discovery
Authors: Barcelos Thiago Schumacher , Soto Roberto Muñoz , Silveira Ismar Frango
Published: January 2015

Game design and development has already been discussed as a viable, motivating alternative to introduce Computer Science concepts to young students. In this sense, it would be useful to obtain a deeper understanding of which skills could be developed in these activities and how such skills could be useful in future careers. This chapter presents the design and evaluation of a Game Building Workshop aimed at introducing the fundamentals of structured programming to students. The games produced by students during 12 weeks were evaluated and the results confronted with students' questions and comments made along the workshop meetings and a final interview. The results indicate that students explored novel programming concepts in order to add features that were not initially planned for the proposed games. These additional features solve playability issues that are highly influential to the experience of the students as game players. Students also reused previously applied solutions to solve similar problems that appeared in subsequent activities. This is an indication that students developed or exercised analogy and abstraction skills during the workshop activities.
Overview of Centrifuge Model Test Development and its Application
Authors: Zang Ming Dong , Fan Zhong Jie , He Jia , Xu Ji Wei , Qiao Jian Wei , Liu Yi
Published: January 2015

The centrifuge model test could achieve the stress state equal to that of the prototype in the ultra-acceleration field formed by the centrifuge machine. Then the similitude theory could be used to obtain the displacement of the prototype and development process of plastic zone, acquiring the mechanism of instability and failure of the full-scale prototype. Based on the review of a large number of literatures and materials on centrifuge technologies. This paper introduced an overview of the development history of centrifuge equipments, techniques and data acquisition, some ignore factors have been pointed out, as well as some key problems which need to be further researched.
Modeling and Simulation of Solar Radiation
Authors: Marcu Marius , Popescu Florin , Pana Leon , Slusariuc Ioan Razvan
Published: January 2015

The energy output of the Sun is fairly constant, but the solar irradiance varies significantly from one place to another and changes throughout the year. Sunlight only reaches the parts of the Earth that are facing the Sun at any given time, and the most intense irradiance is experienced by those parts that are not at an angle to the Sun as it passes over. The modeling and simulation of solar irradiance for a given area is useful for planning future investments in PV and thermal collectors.
Study on the Properties of Compressed Bricks Using Cameron Highlands Reservoir Sediment as Primary Material
Authors: Ooi Jieun Lin , Ean Lee Woen , Mohammed Bashar S. , Malek M.A. , Wong Leong Sing , Tang Chao Wei , Chua He Qing
Published: January 2015

This research is to investigate the properties of compressed building bricks producedfrom Cameron Highlands reservoir sediment. The particle size distribution of the sediments are graded as silt and sand. The sediments used were as total replacement of the normal soils used in the compressed soil bricks. This paper presents the compilation of experimental brick properties; compressive strength, water absorption, microstructure and heavy metal leachingof the compressed sediment bricks. The experimental results shows that increasing use of reservoir sediments decrease the compressive strength andincrease the water absorption. The heavy metal concentrations of the leachates from the leaching test are all within the regulatory limits. The optimum mix is derives from the compressive strength and the water absorption in which in this research is Mix 4, 70% sedimenta, 20% sedimentb and 10% cement,complying with ASTM C129 – Non Load Bearing Bricks [1].
Optimal the Multiple Performances in EDM for SKH57 Using Grey Relational Analysis
Authors: Lin Yan Cherng , Hung Jung Chou , Hwang Lih Ren , Wang A Cheng
Published: January 2015

The aim of this investigation is to optimize the multiple performancesof electrical discharge machining (EDM) process for SKH57 using grey relational analysis.Themachining performances namely electrode wear rate (EWR) and surface roughness (SR) were considered as theresponses. Aseries of experiments were conducted according to an L18 orthogonal array based on the Taguchi experimental design method.The main input variables such as machining polarity (P),peak current (Ip), auxiliary current with high voltage (IH), pulse duration (p), no-load voltage (V) and servo reference voltage (Sv) were selected to explore their effects on machining performances for high speed steel (HSS) graded SKH57.Moreover, analysis of variance (ANOVA) was conducted to explore the significant input variables crucially affecting the multiple performances. In addition, the optimal combinations of input variables were also determined from the response graph of grey relational grades. The experimental results confirmed the multiple performances of SKH57 would obviously be improved through optimizing the input variables using grey relational analysis.
Study on Absorption and Utilization Technology of Renewable Electric Energy
Authors: Liu Yu Juan , Shi Ning
Published: January 2015

In urban rail transit, renewable energy absorption device set in substations can make trains apply renewable energy braking as much as possible, thus can reduce environmental pollution and prevent from tunnel temperature rise; the effective utilization of renewable energy can reach the purpose of energy-saving emission-reduction. The thesis makes analysis and comparison upon the absorption technology of renewable energy of trains, demonstrates advantages and disadvantages of various absorption schemes, it has certain reference value for design of renewable braking energy utilization schemes of trains in rail transit engineering.
A VLC Based Vehicle Collision Avoidance Scheme for Intelligent Transport Systems
Authors: Li Lu Xi , Deng Yao , Chen Yue , Shen Jian Hua
Published: January 2015

Visible Light Communication (VLC) technology is one of the main candidate solutions for Intelligent Transportation Systems (ITS). This paper presents a comprehensive study on VLC based anti-rear-end collision scheme on the highway. A detailed VLC based rear-end collision avoidance model is proposed with theoretical analysis and numerical simulations.
A Modeling Method and I-V Characteristics for PV Array
Authors: Wei Xue Ye , Guo Bin , Li De Yue , Yang Gzhong
Published: January 2015

The output characteristics of a PV array vary nonlinearly when the number of solar cells interconnected in series and parallel changes. The model and its parameters for a single solar cell are analyzed firstly. Then the models and there parameters for series, parallel circuits and series-parallel PV array are proposed respectively using circuit theory and observational method. Especial, the parameters of the equivalent circuits for PV arrays are characterized by a equation. A simulations are implemented to verify the three types of theoretical models and there parameters.Keywords: Solar cell; Model; PV array; I-V curve; Equivalent circuit
Bisection Subspace Pursuit Algorithm for Compressive Sensing
Authors: Zhou Lei , Zhang Kai Liang , Li Dong Mei , Wang Fang , Li Xiao Jing , Liang Sheng Fa
Published: January 2015

A novel greedy algorithm for blind CS recovery without prior knowledge of sparsity, called the Bisection Subspace Pursuit (BiSP) is introduced. The most outstanding feature of the BiSP is that it adopts the bisection method to adaptively estimate the sparsity of target signal, which means that no prior knowledge of sparsity is needed. Simulation results demonstrate that the BiSP not only retains comparable recovery accuracy with CoSaMP, SP and SAMP, but also outperforms the SAMP in terms of complexity when sparsity of signal is large. This makes the BiSP a competitive candidate for many practical situations.
A Simulation Study of Nakagami-m Distribution
Authors: Yang Yi Huai , Wang Li Fang , Shen Ming Xiu
Published: January 2015

Mobile radio channel models are essential for the development, evaluation and test of current mobile radio communication systems and also crucial for the realization of the future systems. Nakagami-m distribution is important for channel modeling in mobile communication. It can repeat system tests in the development, design, or test laboratory. In this study, we make a simulation study of the Nakagami-m distribution. We focus on study the PDF of Nakagami-m distribution under different values ofand, we also simulate the SER Vs.SNR over Nakagami-m fading channel for QPSK
Modeling and Simulation of Power-Split Hybrid System
Authors: Xi Li He , Zhang Xin , Zhang Bao Di
Published: January 2015

In this paper, A new type of power-split HEV system based on Ravigneaux Planetary Mechanism is introduced. Using AVL Cruise software established the hybrid passenger car simulation model. The energy management system control strategy based rules is also studied. The effectiveness of the control strategy for the vehicle is proved by UDDC driving cycle. According to the results, fuel consumption saving of five percent than that of the prototype.
A Traffic Allocation Algorithm Base on Airline’s Profit Maximization in Multi-Aerodrome Terminal Airspace
Authors: Xiang Zheng , Tang Yu , Kang Feng
Published: January 2015

Due to the capacity constraint on traffic flow in multi-aerodrome terminal airspace, an algorithm to allocate traffic flow according to capacity in multi-aerodrome terminal airspace is studied by exploring collaborative decision making and law of economics. First, considering factors such as airline’s gross income, operation cost and delay cost, a traffic optimization model to maximize total airline’s profit is established, and constraints including capacity of multi-aerodrome terminal airspace are imposed as well. Then, an improved genetic algorithm to obtain optimal solutions to the optimization model is developed. Traffic flow can be better allocated according to capacity in multi-aerodrome terminal airspace by using the proposed strategy, while airline’s profit is increased simultaneously.
Analysis of Ceramic Pattern Primitives Transform Operation
Authors: Li Bu Sheng , Hu Jing Fang
Published: January 2015

This paper analyzes the entity atomic operations include translation, scaling, rotation, mirror, waveform transform and vortex transformation mainly six geometric transformation, and according to the characteristics of ceramic pattern, has carried on the experiment to verify the analysis.
Environmental Quality Assessment Based on a New Kind of Neural Network Using Rational Spline Weight Functions
Authors: Zhang Dai Yuan , Hou Shan Jiang
Published: January 2015

As we all known, artificial neural network can be used in the process of environmental quality assessment. To improve the accuracy and science of assessment, a method of environmental quality assessment is presented in this paper, which is based on spline weight function (SWF) neural networks. The weigh functions of the neural network are composed of rational spline functions with cubic numerator and linear denominator (3/1 rational SWF). The simulation results show that, compared with the conventional BP neural networks, this method can get very high precision and accuracy. This case demonstrates that SWF neural networks can offer a very prospective tool for environmental quality assessment.
Global Stability of an Age Structured SEIRS Epidemic Model with Screening
Authors: Zhang Zhong Hua , Suo Yao Hong
Published: January 2015

We formulate an age structured SEIRS model with general screen function and contact rate. A condition is obtained, and under which the endemic equilibrium is locally stable. By constructing suitable Lyapunov function, the global stability of the endemic equilibrium is discussed.
Logistic Regression Analysis on the Survival Time for Patients with Lung Cancer
Authors: Ma Sheng
Published: January 2015

In the paper, the survival time of patients with lung cancer is inferred based on binary classification variables Logistic regression linear model and the data analysis is implemented by R software.
Numerical Simulation of Particle Separation in a Hydrocyclone
Authors: Hong Ji Jian , Xi Ding Yu , Jiao Wang Xue
Published: January 2015

The mixture two-phase turbulence model and theory of particle dynamics is used to simulate the high concentration water-sand two-phase flow in a hydrocyclone. The article mainly analyzes the particle volumetric concentration distribution and separative efficiency of different diameter particles in a hydrocyclone. The simulation result shows that the particle volumetric concentration distribution of different diameter particles is nonuniform in a hydrocyclone. In the annular space, the small diameter particles are affected by the shortcut flow greatly and have high concentration near the wall of the overflow pipe, while the big diameter particles are mainly distributed near the wall in a hydrocyclone. In cylinder space and cone space, different-diameter particles show a similar distribution, the smaller-diameter particles mainly in inner vortex and the larger-diameter particles in outer vortex.
The Application of Time Series Analysis Model in the Prediction of Rice Blast
Authors: Cao Li Ying , Yu He Long , Chen Gui Fen , Sun Peng
Published: January 2015

The research of time series analysis model to predict the effect of rice blast, provides the reference for the prediction of the disease. In successive years of planting area and the rice blast incidence area as the original data,were used to establish the forecast model of time series analysis of moving average, exponential mean and variance analysis of periodic extrapolation of rice blast incidence, analysis its forecast results, and built at the beginning ofthe prediction was verified in application. The experimental results show that the time sequence analysis model can be used for long-term forecasting of rice blast.
Investigation of Sinkage and Trim by Ships in Shallow Water Based on Overset Grid
Authors: Sun Da Ming , Liu Ji Yong , Kong Qing Wen
Published: January 2015

A study on the navigation behavior for ships in shallow water had been carried out on CFD. The problem of surface ship hulls free of sinkage and trim in shallow water is analyzed numerically by simultaneously solving equations of the Reynolds averaged Navier-Stokes (RANS). The computations, based on the single-phase level set and overset grid, are discretized by finite volume method (FVM). An earth-based reference system is used for the solution to the fluid flow, while a ship-based reference is used to compute the rigid-body equations of motion. A S60 CB=0.6 ship model is taken as an example to the numerical simulation. Numerical results of the sinkage and trim of the seven Froude Numbers (Fn=0.5~0.8) are compared against experimental data, which have a good agreement.
Research on Computer Graphics Design and Visual Communication Design
Authors: Wang Jian Hui , Liu Li
Published: January 2015

In today's society rapid development of science and technology, the computer figure image design can be widely used in various industries. In the film and television, advertising, exhibition, art, electronic play in areas such as lack of necessary computer graphics design. With the development of computer information technology, the design of the graphics technology will progress. On the technology no longer content with a simple graphics rendering, more note focus on visual sense of the data, enhance the figure shape the image of beauty and expression. This paper mainly discusses the computer graphics design and visual communication design in today's society rapid development of science and technology, computer graphics design has also been extensively applied to various industries. In the film and television, advertising, exhibition, art, video games, and other fields are short of necessary computer graphics design. With the development of information technology, computing machine graphics design technology progress. Current technology is no longer satisfied with the image of a simple now, pay more attention to the visual sensation of biography and enhance the figure shape the image of aesthetic feeling and expression. This paper mainly discusses the computer graphics design and research of visual communication design.
Multipath Inter-Domain Routing Decision Verification Protocol
Authors: Qiu Xiu Feng , Liu Jian Wei , Wu Qian Hong , Zhong Qi
Published: January 2015

Because of complicated security policy collisions and twisted interest conflicts in network domains, inter-domain routing security has been a challenge of secure routing. At present most of related researches focus on the authentication of routing source and true path, but seldom addresses another point of whether the routing decision process matches expected policy. In this paper, a multipath inter-domain routing decision verification protocol was designed, which can verify whether an autonomous domain (AD) keeps its promise about choosing appropriate M from N paths that have the same destination and are received from upstream ADs, and sending to a downstream AD. According to the analysis, the protocol is valid and can protect privacy of participants, as well as can resist attacks such as forgery, modification and replay etc. and deploy on internet incrementally.
Research of the Key Technologies of the Smart Home Based on IOT
Authors: Zhang Liang , Zheng Lei Na , Yang Hao Dong , Pan Tie Jun
Published: January 2015

This paper mainly studies Ihome, the application of smart home, which provides a cloud service background, based on the distributed and intelligent control and a series of control terminals, smart sensors, to let the family consumers can fast, easy to build an extensible intelligent home solutions. In addition, intelligent control, control terminals, smart sensors can also be integrated in the intelligent community.
Research on Aircrafts’ Ammunition Management System Based on Data Warehouse
Authors: Wang Yu Hui , Kan Li Juan , Xu Ji Hui
Published: January 2015

With the development of database technology, there are many problems in the existing management systems of aircrafts’ portable ammunition which use traditional affairs database. The shortcomings of traditional database are analyzed firstly. To deal with these problems, a new ammunition management system based on data warehouse is proposed. The structure of the data warehouse is discussed in detail. The five steps of development and use of data warehouse in ammunition management system are then discussed. Finally, examples of ammunition supply are given.
Research on MCL for Mobile Underground Miner Location System Based on ZigBee
Authors: Liu Qian , Chu Yue Qiang , Han Xing
Published: January 2015

In this paper, we try to solve the problem of mine safety and real-time scheduling in underground miner, the Monte-Carlo localization methods of the underground location system based on ZigBee wireless sensor network were proposed. This paper designs software application for the nodes in the network, builds the overall structure of the miner location system and constructs the ZigBee wireless network. After testing and simulation, the results indicate that we can locate precisely in the complex terrain and terrible communication environment by the Monte-Carlo Localization algorithm.
Calculation and Analysis of the Turbocharger Assembly Errors
Authors: Xu Su Ying
Published: January 2015

Turbocharger assembly process has two assembly dimension chain, the assembly dimension chain between the shell, and the assembly dimension chain of the parts of the impeller shaft. Between them are interrelated, eventually formed with the gap between the impeller and the casing. The impeller is rotationed by exhaust gas flowed through the impeller chamber through the nozzle ring promote. It will result in the loss of the exhaust gas flow if the fit clearance between the impeller and the casing is greater than the design value, the impeller speed can not meet the design requirements Resulting in turbocharger boost the value below standard,and the boost the value of turbocharger can not meet the requirements
The Design and Implementation of Prototype System for Choreography and Rehearsed Based on Virtual Simulation Technology
Authors: Ji Hua Juan , Zhao Jian Bo , Zhao Huan
Published: January 2015

This paper use crowd simulation and virtual reality technology design choreography prototype system. Based on the analysis and research of group calisthenics performance’s choreography work draws the related theory of crowd movement model, proposes a crowd movement model which can describe actor behavior in group calisthenics. This paper is divided into three parts; the first part introduces the development of group gymnastics in China. The second part introduces the structure and function of group calisthenics prototype system. The third part focuses on the design and implementation of a prototype, at the same time provides a useful reference for depth study of virtual crowd simulation.
The Advanced Technologies on Digital Characterization of Reservoir Microscopic Pore Structure
Authors: Pan Shao Wei , Zhang Miao Miao , Liu Rui Xiang
Published: January 2015

The technologies on digital characterization of reservoir microscopic pore structure are very important during the process of oilfield development. Firstly, the definition of microscopic pore structure is elaborated. Secondly, six technologies on digital characterization of microscopic pore structure that are adopted by the scholars at home and abroad are concluded. Lastly, the novel technologies on digital characterization of microscopic pore structure is prospected. And the spatial distribution of microscopic pore structure is so complicated that other advanced technologies should be adopted during the process of research.
Application of Self-Adaption Camouflage Materials in the Entrance of Command Protection Engineering
Authors: Liu Jun , Zhang Nai Yan
Published: January 2015

In this paper, a series of infrared thermal self-adaption camouflage materials based on poly ((2-dimethylamino) ethyl methacrylate)/poly (N, N-diethylacrylamide) (PDMAEMA/PDEA) were synthesized. The influence of this additive on the property of resulting PDEA materials was investigated and characterized. The interior morphology by scanning electron microscopy (SEM) revealed that the semi-IPN materials have interconnected porous network structures. Compared to PDEA, the semi-IPN materials exhibited excellent mutative values in response to an alternation of the temperature, and showed fast swelling and deswelling rates in response to temperature change, which suggests that these materials have potential application as thermal infrared camouflage materials and could self-adapt the thermal radiation of the objectives according to the temperature variation of ambient background.
Optimization of Ultrasonic Extraction of Flavonoids from Castanea mollissima Blume Shell
Authors: Sun Hai Tao , Shao Xin Ru , Jiang Rui Ping , An Jun
Published: January 2015

Flavonoids extracted fromCastanea mollissimaBlume shell using response surface methodology by ultrasonic-assisted. The effects of liquid/ materials ratio, ethanol concentration, ultrasonic temperature,and ultrasonic time on the flavonoids extraction rate were investigated by Box-Benhnken center composite design. The results showed that the optimum conditions were as follows: liquid/ materials ratio 8:1 (mL/g), ethanol concentration 40 %, ultrasonic temperature 60 °C,and ultrasonic time 25 min, the highest absorbance was obtained under the optimum conditions, and the extract absorbance can be reached 0.702.
Removal of Cu (II) Ions by a Novel Starch-Based Adsorbent from Aqueous Solution
Authors: Niu Hong Yan , Pu Lu Mei , Li Jing
Published: January 2015

A novel starch-based material, designated as DASU-EDTA, was firstly prepared by the reaction of EDTA anhydride with previously synthesized dialdehyde urea starch (DASU). This material was characterized by IR spectroscopy and used as an adsorbent to remove Cu (II) ions from aqueous solution. The IR results showed EDTA was successfully attached to the glucose units of starch, and DASU-EDTA was one of starch amides derivatives. The adsorption tests revealed that the adsorption of DASU-EDTA for Cu (II) ions was an endothermic process, which mainly relied on the strong chelation of EDTA to metal ions. The optimal conditions should be controlled at pH 5.0 and 120min. In addition, it was found that the high initial concentration of Cu (II) ions was favorable for the adsorption of DASU-EDTA for Cu (II) ions.
Solid Phase Synthesis and Optical Properties of CdTiO3 Submicron Particles from Cd(OH)2 and P25 TiO2
Authors: Li Jing , Wang Xin , Chen Yan , Zhuang Wen Chang
Published: January 2015

A simple and cost-effective low temperature (600 oC) solid phase method was proposed for the synthesis of CdTiO3 submicron particles, using Cd (OH)2 and P25 TiO2 as the starting materials. The composition and structure of the as-synthesized CdTiO3 submicron particles were characterized by X-ray diffraction and transmission electron microscopy. Besides, the optical properties of the as-synthesized CdTiO3 submicron particles were characterized by UV-vis diffuse reflection spectrum and photoluminescence spectrum.
Synthesis and Characterization of SnSe Nanowires by Solvothermal Method
Authors: Li Jian , Yan Long , Liu Hui Jin
Published: January 2015

A simple solvothermal route has been used to prepare SnSe nanowires using SnCl4·4H2O and Selenium powder. The phase, structure, morphology, and optical properties of the as-synthesized products were characterized by powder X-ray diffraction (XRD), scan electron microscopy (SEM), Raman spectroscope (RS) and UV-visible spectrophotometer (UV-vis). The results showed that SnSe nanowires were prepared at 200°C for 24 h and in the length of 150-200μm, and width of 1-1.5μm. The band gap of SnSe nanowires was about 1.67 eV, which was close to the optimum band gap of thin film solar cells.
Energy Management for the Automotive Paint Workshop
Authors: Zhang Qing Liang
Published: January 2015

Paint workshop energy consumption cost is always the prominent part in the production and manufacturing. How to achieve the purpose of saving energy, improving economic efficiency has been the focus of the industry. The principle, characteristics and application prospect of energy management for the automotive paint workshop are illustrated. Combined with the practical application in painting process and paint equipment, energy saving techniques regarding to the paint assembly is analyzed.
Research on Electronic Coin Recognition System Based on STC89C52
Authors: Wang Ting , Wang Hao
Published: January 2015

STC89C52 single-chip microcomputer is used as control core of the system, and characteristics of photoelectric switch is used to design a scheme for detection of face value of coins based on different sizes of coins. Genuine coins and counterfeit coins have different size and mass, based on which the combination of strain sensor and photoelectric switch is put forward to design a scheme for identifying genuine coins and counterfeit coins. In this paper, hardware and software design of the system is introduced in a detail way and system testing is conducted at last, the result of which indicates that the system can realize the identification, classified statistics, sound and light prompting for coins with different face values as well as identification of genuine coins and counterfeit coins, and thus has a certain degree of prospect for application and value of promotion.
Based on Wireless Sensor Network (NWK) of Non-Contact Tremor Monitoring Equipment Improvement for Parkinson's Disease
Authors: Sha De Lei , Xie Wei Cheng , Fan Xiao Long , Li Yu
Published: January 2015

Many traditional tremor sensors are in direct contact with the human body, we tried a new non-contact manner, using the ZigBee standard protocol stack, and constitutes a wireless sensor network (Wireless Sensor Network, WSN), so that it can meet the pathological signal acquisition under low power consumption. In this experiment the main object is to capture the tremor signal from the surface of Parkinson's patients, as well as the feasibility of this new approach. Taking into account the reliability of the data and the transmission efficiency of the whole system, we use the structure of the ZigBee-based star network, and in the receiving terminal to achieve a variety of interfaces to facilitate the transfer, storage and use of other systems and data access.
A Planar Capacitive Sensor Parameter Design for Security Detection
Authors: Yang Xiang Dong , Gong Yu , Li Nan , Wang Pai
Published: January 2015

A planar capacitive sensor is designed for security detection. The different length of the sensor electrodes are design and the experiments are presented. For the relations between sensor structure parameters and the sensor potential distribution, detailed analyses are presented and the qualitative conclusions are discussed. The signal strength and measurement range of the sensor can be improved by enlarge the length of the sensor electrodes. The experimental results indicate that the sensor is more portable, easy to minimize, and applicable to the detection of a variety of sizes of containers. It is feasible to be applied to security detection.
Research on a Current Electric Bus Battery Swapping System Based on the Cartesian Coordinate Robot
Authors: Wang Xin , Wang Jing , Zhang Yan
Published: January 2015

Electric vehicle is a prominent representative domain in the exploitation of new energy resources, which will be the trend of automotive industry in the future. The purpose of the scheme is to provide a current electric bus battery swapping system based on the Cartesian coordinate robot to solve the pressure of petroleum resources and air pollution. In this paper, the battery swapping robot and battery pack lifting robot are the key of the battery swapping system, which will be discussed in detail. Experiments show that the positioning precision during the swapping process is high, the position is accuracy, and the swapping speed is moderate.
Simulation of Fuzzy PID Control for a Large Containership Speed at Slow Steaming Condition
Authors: Guan Cong , Chen Hui , Gao Hai Bo
Published: January 2015

In this paper, a cycle mean value engine model was built, and the ship propulsion system model was developed by combining the engine model with propeller and ship model following a modular approach in MATLAB/Simulink environment. In addition, the fuzzy PID control theory was investigated and applied in the ship speed intelligent control system under different disturbance circumstances with emphasis at slow steaming condition. Finally, the simulation results indicate that the fuzzy PID controller can improve the dynamic performance of the ship speed control system, decrease oscillation as well as increase response speed.
Analysis and Evaluation of Non-Singularity Workspace of Parallel Manipulator
Authors: Liu Yu Jia , Fu Tie , Ding Hong Sheng , Wang Yan Ming
Published: January 2015

This paper studied the novel 3-PRRR manipulator, the non-singularity workspace was deduced, satisfying various constrains, containing the angle scales of driving pairs, the travelling limits of driven pairs and the singular position conditions. Stepwise refinement method was employed and acceleration approaching method were put forward to improve the performance evaluation solving speed.
Design and Implementation of Mechatronic Prosthesis for Amputees with Trans-Humeral Amputation
Authors: Mauledoux Mauricio , Hernández Juan C.M. , Caldas Oscar I. , Avilés Oscar F.S. , Ramirez G. Hoffman F.
Published: January 2015

The research project started with the need to found a viable solution to replace the upper extremities with artificial extremities, which have been affected by explosives such as land mines. For that purpose, it was essential the appliance of the design in the field of medicine for the construction of the anthropomorphic prosthesis. In order to do so, the concepts of biomechanics of the arm, including hand, as well as the types of handgrip was explored. According to the above, the concepts, moment, power, torque, four bar analysis were addressed, identifying the four bar mechanism and applying it on the design for the transmission of the movement in the phalanges..
Multi-Objective Trajectory Optimization of Free-Floating Space Manipulator Using NSGA-II
Authors: Chen Gang , Wei Cong , Jia Qing Xuan , Sun Han Xu , Yu Bo Yang
Published: January 2015

In this paper, a kind of multi-objective trajectory optimization method based on non-dominated sorting genetic algorithm II (NSGA-II) is proposed for free-floating space manipulator. The aim is to optimize the motion path of the space manipulator with joint angle constraints and joint velocity constraints. Firstly, the kinematics and dynamics model are built. Secondly, the 3-5-3 piecewise polynomial is selected as interpolation method for trajectory planning of joint space. Thirdly, three objective functions are established to simultaneously minimize execution time, energy consumption and jerk of the joints. At last, the objective functions are combined with the NSGA-II algorithm to get the Pareto optimal solution set. The effectiveness of the mentioned method is verified by simulations.
Design and Thermal Analysis of SiGe HBT with Non-Uniform Segmented Emitter Fingers and Non-Uniform Emitter Finger Spacing
Authors: Chen Liang
Published: January 2015

A novel multi-finger power SiGe heterojunction bipolar transistor (HBT) with non-uniform segmented emitter fingers and non-uniform emitter finger spacing was proposed to improve the thermal stability. Thermal simulation for a five-finger power SiGe HBT with novel structure was conducted with ANSYS software. Three-dimensional temperature distribution on emitter fingers was obtained. Compared with non-uniform segmented emitter fingers structure and non-uniform emitter finger spacing structure, the maximum junction temperature of novel structure reduce significantly, the thermal resistance reduce, temperature distribution were significantly improved. Thermal stability was effective enhanced.
Comparison of Downlink Channel Estimation Schemes for LTE-Based Smart Grid Communications
Authors: Wang Hai Jun , Zhen Yan , Ou Qing Hai , Zhang Hong Yu , Yang Wan Qing , Xia Yuan Dou
Published: January 2015

The long term evolution (LTE) based smart grid communication network is a promising candidate solution for the future power grid. In this paper, we discuss three channel estimation schemes for the LTE-based smart grids, including least square (LS), minimum mean square error (MMSE), and discrete Fourier transform (DFT) based channel estimators. In the simulations, we compare these three estimators, the results show that the DFT-based channel estimator can achieve the best tradeoff between the performance and the implementation complexity.
Adaptive Fusion of Multi-Biometrics for Human Identification in Video
Authors: Kong Ying Hui , Chen Pei Yao
Published: January 2015

The purpose of multiple biometric fusion is to improve the recognition performance by utilizing their complementary. In this paper, the feature fusion recognition method of multi-view face and gait in video is studied, and a adaptive decision fusion method is proposed. The results showed that the adaptive fusion features carry the most discriminating power compared to any individual biometric and other static fusion rules like Max and Sum.