bluuebunny/crossref_metadata_2025 huggingface dataset:
Integrating Technological Innovations to Enhance the Teaching-Learning Process
Authors: Estes Judi Simmons , Dailey-Hebert Amber , Choi Dong Hwa
Published: May 2016

Virtual reality is one of the latest technologies to be integrated into the teaching-learning process and it holds significant potential to enhance instructional processes and impact student learning. Historically, technology integration for instruction has been initiated primarily within institutions of higher education, while K-12 integration has been gradual to become part of mainstream education. Likewise, as teachers play a pivotal role in the process of technology integration, it is imperative to train teachers not only in computer literacy, but also in the requisite technological knowledge and skills needed to use technology in instruction. Furthermore, such training should be accompanied by support for teachers in developing a pedagogy and self-efficacy for technology integration. Self-efficacy can also serve as a foundation of motivation for teachers to keep abreast of new technologies and to determine how and when to use such emergent tools to enhance instruction.
Listening and Learning through ICT with Digital Kids
Authors: Forbes Dianne
Published: May 2016

The following case reports on the involvement of children in online discussion with student teachers within initial teacher education in New Zealand. The focus is on listening to children, with wider implications for listening as a professional capability extending beyond the teaching profession. In this case, student teachers and pupils communicated online, exchanging ideas, debating, and engaging in co-construction of understandings around the place of Information and Communication Technologies in teaching and learning. The case explores the interaction and social dynamics observed and mutual learning experienced, with links to theoretical perspectives including constructivist and democratic pedagogies. Implications for improved practice are considered. It is argued that there is a need to explicitly teach listening skills and to encourage professionals in training to listen to clients. It is argued that the online environment is an excellent training ground for developing effective listening skills as it lends itself to reflective practice and to meta-listening awareness.
Teachers' Professional Development in the Digitized World
Authors: Ozdemir Emsal Ates , Dikilitaş Kenan
Published: May 2016

Professional development for in-service English language teachers has increasingly become a need in higher education not only in Turkey but across the world. Due to the limited time teachers have and the distance between the source of service and the potential participants, using digitized activities and materials have naturally become a necessity. The purpose of this research is to report the potential impact of the course described below and discuss the role of blended learning experience of professional development on the participating teachers. The theoretical background of the study is experiential learning initiated by Kolb and socio-constructivist learning theory by Vygotsky in that both theories highlight the role of experiencing the change and focus on personal meanings and learning with and from others in real and online environments.
Integrated Methods Block
Authors: Popejoy Kate , Good Amy J. , Rock Tracy C. , Vintinner Jean Payne
Published: May 2016

At a large, urban university, the clinically based preparation of undergraduate elementary education teacher candidates has been transformed. Following the Blue Ribbon Panel Report (NCATE, 2010), faculty created a more intense, integrated, and rigorous clinical experience for teacher candidates, which required more engagement, monitoring, and collaboration among methods faculty and PDS PK-6 schools, while immersing the candidates in a more realistic setting. This chapter describes how (a) methods curricula were reconfigured to include integrated clinical assignments, (b) opportunities were created for candidates to experience extended time in clinical classrooms, (c) university faculty liaisons were present at each PDS clinical school to provide on-site support, feedback, seminar instruction, accountability, and increased communication between the university and the school, (d) new evaluation instruments were implemented to gather and report teacher candidate knowledge, skills, and dispositions, and (e) technology was utilized, allowing teacher candidates opportunity to present and reflect on experiences.
iPad
Authors: Thomas Ursula
Published: May 2016

It is the unavoidable and it is not going away. The gravity of technology has firmly planted itself in our daily existence and yes, this includes teacher education. As technology has because our normative environment in daily life it has also become normative in educator preparation; our new oxygen. This commonplace element is hailed as a tool of equity for learners, preschool through college. Our current populations of learners are digital natives, but many educational leaders are digital tourists. As we look to challenge the traditional notions of distance learning, program offerings, and educator preparation models we must rapidly embrace the persona of the digital native to increase relationships with those we prepare as teachers while at the same time valuing and increasing diversity and voice. This chapter seeks to examine how a teacher educator engages preservice teachers in the world of diversity using technology.
Learning to Teach Online
Authors: Tschida Christina M. , Hodge Elizabeth M. , Schmidt Steven W.
Published: May 2016

The rapid expansion of distance education in higher education has left a high demand for faculty willing to design and teach online courses, often with little or no training. The path from face-to-face to online courses is not an easy one and can be filled with frustration and doubt for many faculty. Professional development often focuses on technology tools rather than pedagogical issues of online learning or course content. This chapter focuses on research that examines the experience of several faculty from the college of education at a state university in the Southeast United States, as they learned to teach online. It presents their negotiations of issues of online platform and pedagogy and their efforts to find professional development to meet their needs. The implications for institutions of higher learning are important as distance education continues to increase and more and more faculty are asked (or told) to transfer their courses online.
Teacher Effect Model for Impacting Student Achievement
Authors: Heafner Tina L.
Published: May 2016

Teachers are a significant factor associated with student achievement. Research recognizes that the greatest determinate of student achievement is the teacher, yet questions remain as to what characteristics of teachers are the most influential and where these attributes can be influenced through professional development. This paper explores the teacher effect through the evaluation of the interaction among characteristics of four teacher profiles using Surveys of Enacted Curriculum®. This Teacher Effect Model was designed to evaluate the future impacts of sustained professional development.
Using a Literacy-Based Classroom Partnership to Prepare Teacher Candidates for the edTPA
Authors: Hunzicker Jana Lynn , Arquette Cecile M. , Olson Peter , Atkins Douglas
Published: May 2016

This chapter chronicles the progression of one university's efforts to create authentic learning experiences and performance-based assessments for teacher candidates through an established school-university partnership. The chapter focuses on one particular professional development school (PDS) initiative: an ongoing classroom partnership between Bradley University's ETE 313: Methods of Literacy I course and kindergarten through second grade classrooms at neighboring Whittier Primary School. Opening and closing with vignettes illustrating Bradley's ETE 313/Whittier classroom partnership, the chapter presents detailed descriptions of two different professors' efforts to provide authentic learning experiences and prepare teacher candidates for state licensure, including successful completion of the Education Teacher Performance Assessment (edTPA), over four years' time. The chapter concludes with a discussion of the evolving classroom partnership in terms of student learning outcomes, the need for ongoing curricular modifications, and strategies for sustaining classroom partnerships.
The Personalized and Personal “Mass” Media – From “We-Broadcast” to “We-Chat”
Authors: Zhang Yu
Published: May 2016

China's two major social media, the microblog Weibo and the messaging service WeChat have played important roles in representing citizens' voices and bringing about social changes. They often grow an ordinary event into a national debate as in the case of the Bi Fujian incident. They have also turned ordinary Chinese citizens into amateur reporters, empowering them to influence on issues that matter to them. An equalizer of power and discourse opportunity, the personalized and personal social media “weapons” are delivering the much needed social justice and consolation to the Chinese citizens amid widespread injustice, inequality, hypocrisy, indifference and corruption in the Chinese society.
Electronic Payment Systems and Their Security
Authors: Balasubramanian Kannan , Rajakani M.
Published: May 2016

Electronic commerce (or e-commerce) can be defined as any transaction involving some exchange of value over a communication network. This broad definition includes: Business-to-business transactions, such as EDI (electronic data interchange); Customer-to-business transactions, such as online shops on the Web; Customer-to-customer transactions, such as transfer of value between electronic wallets; Customers/businesses-to-public administration transactions, such as filing of electronic tax returns. Business-to-business transactions are usually referred to as e-business, customer-to-bank transactions as e-banking, and transactions involving public administration as e-government. A communication network for e-commerce can be a private network (such as an interbank clearing network), an intranet, the Internet, or even a mobile telephone network. In this chapter, the focus is on customer-to-business transactions over the Internet and on the electronic payment systems that provide a secure way to exchange value between customers and businesses.
Web Client Security
Authors: Balasubramanian Kannan
Published: May 2016

Although it is possible for a Web client to strongly authenticate a Web server and communicate privately with it (e.g., by using SSL and server-side certificates) not all security problems are solved. One reason is that access control management can only be really efficient for a small number of client-server relationships. Even in such a limited scenario, it requires some security expertise to recognize and manage good certificates. There are at least three good reasons for ensuring privacy and anonymity in the Web: to prevent easy creation of user profiles (e.g., shopping habits, spending patterns), to make anonymous payment systems possible, or to protect a company's interests (e.g., information gathering in the Web can reveal its current interests or activities.
Security Considerations In Migrating from IPv4 to IPv6
Authors: Balasubramanian Kannan
Published: May 2016

Issues related to IPv6 transition security include transition strategies, tunneling approaches, and considerations on the potential abuse of transition mechanisms. There are indications that attackers have been exploiting IPv6 for a number of years; therefore, it is important for network administrators to be aware of these issues. The transition mechanisms generally include: (1) IPv6 over IPv4 tunneling approaches. Encapsulating IPv6 packets within IPv4 headers to carry them over IPv4 routing infrastructures. Two types of tunneling are employed: configured and automatic. (2) Dual IP layer approaches. Providing complete support for both IPv4 and IPv6 in hosts and routers.
XML Signatures and Encryption
Authors: Balasubramanian Kannan
Published: May 2016

Many XML uses today need security, particularly in terms of authentication and confidentiality. Consider commercial transactions. It should be clear why purchase orders, payments, delivery receipts, contracts, and the like need authentication. In many cases, particularly when the transaction involves multiple parties, different parts of a message need different kinds of authentication for different recipients. For example, the payment portion of an order from a customer to a merchant could be extracted and sent to a payment clearing system and then to the customer's bank. Likewise, court filings, press releases, and even personal messages need authentication as a protection against forgery. XML Digital Signature, which provides authentication is a full Recommendation in the W3C and a Draft Standard in the IETF. XML Encryption which provides confidentiality, and Exclusive XML Canonicalization are W3C Candidate Recommendations.
Instructional Design for Millennials
Authors: Loose William , Marcos Teri
Published: May 2016

The authors have worked since 2000 to prepare school leaders at two California Institutions of Higher Education (IHE) in partnership with K-12 public, private, and charter schools. While transforming their programs into virtual delivery models, as an option for students, both online and face-to-face hybrid formats require conditions that help students effectively succeed as learners. Over fifteen years the authors have narrowed discussions for efficient facilitation and mapping to course content while personalizing lessons to deeply engage their learners' creation of new knowledge. They make twenty-three recommendations for streamlining course content, assignments, and assessments to meet individual needs of students while meeting the expectations and challenges of changing national and state standards. The authors conclude that ‘thinking anew' through faculty ideation is a must for IHEs as the changing learner demands changing practice.
The Online Course Maximizers
Authors: Beckwith George
Published: May 2016

The purpose of this chapter is to show how making content more visible, placing it in a gaming format, and using analytics techniques for continuous improvement, will enhance online teaching and learning. This is achieved by using online tools and techniques such as interactive and visual video presentations and discussions, colorful graphics, charts, images and interactive games while using analytics software to gage their effectiveness. The goal is to maximize online course effectiveness—and at the same time, learning. The formula is straightforward. Visualize the content (make it more spatial), game the content (make it more interactive), and analyze (examine carefully and in detail) both the instruction and the learning for continuous enhancement. Educators often offer one of these instructional maximizers as the savior of online course effectiveness but seldom consider the positive synergistic effect in integrating and using all three at the same time, as this chapter will do.
The Adaptation of a Residential Course to Web-Based Environment for Increasing Productivity
Authors: Tüzün Hakan , Sarıca Hatice Çıralı , Çetin Nihal Menzi , Kokoç Mehmet , Sert Gülşen , Alır Arman
Published: May 2016

This study examines the design process of a blended learning environment using a learning management system to transform Basic English courses into the web-based distance learning format in the School of Foreign Languages at a large scale research university in Turkey. The research design was based on design-based research and the ASSURE, which is an instructional design model. A design plan was created based on the needs indicated by the analysis, and the necessary materials were developed and transferred to the learning management system. A usability test of the environment was conducted for increasing efficiency of environment, facilitating learning, increasing productivity and making the environment more user-friendly. As a result, an environment was designed where instructors can create the desired multimedia materials (videos, exercises, quizzes). Students can access these materials, discuss with each other and instructor (chat, discussion) and assess their learning outcomes (weekly homework, quizzes, games).
Communicating with Students in Online Environments
Authors: Jordan Katrina Woolsey
Published: May 2016

The purpose of this chapter is to outline technological tools and techniques instructors can use in order to be successful in their communications with students in virtual environments thus increasing instructor productivity and efficiency as well as student success. Instructors must communicate effectively in the following areas: assignments and due dates; inactivity, missing assignments, and/or failing grades; and feedback to guide learning. The instructor must also be willing to communicate in creative ways by using various technological tools including apps and social media. Online tools and techniques covered include: discussion boards; online charts; assignments; presentations; spreadsheets, math engines, and other calculation software.
The Discussion Forum
Authors: Harvey Trish , Johnson Vivian
Published: May 2016

This chapter will discuss how to use the revised Bloom's Taxonomy as a framework for not only creating learning objectives but also as a guide to select tools to reduce the use of discussion forums and support faculty in broadening their thinking about the variety of tools that can be used to address learning objectives. Tools include: wikis, blogs, quizzes, journals, Web 2.0 tools, infographics and videos. These tools reduce faculty dependence on discussion forums and support faculty in broadening their thinking about the variety of tools that can be used to address learning objectives to create manageable workloads.
Importance of 3D Visualization for Land Use Planning, Construction and Management of the Karsıyaka Settlement Area (Izmir-Turkey)
Authors: Ozcelik Mehmet , Yeniceli Sevnur
Published: May 2016

Due to recent technological advances in 3D geographic information system (GIS); These 3D visualization technologies have been widely used in urban planning decisions, including: where to build, how to plan for natural disasters, the use of finite resources, how to incorporate sustainable practices, designing for growing populations and other engineering applications. In this study 3D GIS visualization technology is applied to Karsiyaka (Izmir) settlement area to show its applicability for the land use planning, construction and management. This study is carried out in four different stages: In the first stage; 1:25000 scale topographic maps and 1:1000 scale geological maps are digitised in GIS environment and their attribute tables are stored in the GIS databases. In the second stage; sub-surface of the study area was visualized using 3D technologies. This visualisation process is used to assist decision-making for land use planning. In the third stage; and useful soil class zonation maps are performed to be used in further studies. At last stage; after research at this site, the construction applications of Karsiyaka have been multiplied.
Finite Element Analysis of SiCp/Al Model of Unit Cell during Ultrasonic Vibration Scratching
Authors: Liang G.Q. , Feng Ping Fa , Zhang Jian Fu
Published: May 2016

In this paper, finite element model of SiCp /Al single cell body and single diamond particles were established by cross-scale modeling method. The results shows that the extent of damage of SiC particles increased with the increase of amplitude and frequency; The integrity of SiC particles are still better under the ultrasonic frequency 20000 Hz and the maximum amplitude 5um,so the optimal frequency range of ultrasonic scratch is (20000-30000)Hz. As for 22000 Hz, the integrity of SiC particles was better under the amplitude 4um,while the SiC particles have a significant damage in the border area under the amplitude 5um,so the best frequency and amplitude for ultrasonic scratches are: 22000 Hz and 4 um.
Reliability of Al2O3/TiC Micro-Nano-Composite Ceramic Tool in the Machining of Stainless Steel
Authors: Yin Zeng Bin , Huang Chuan Zhen , Yuan Jun Tang , Zou Bin , Liu Han Lian , Zhu Hong Tao
Published: May 2016

The cutting performance, failure mechanisms and reliability of Al2O3/TiC micro-nanocomposite ceramic tools with different geometry parameters in continuous machining of austenitic stainless steel were studied. The results showed that the largest metal removal amount was got at the cutting speed of 80 m/min, the feed rate of 0.15 mm/r and the cutting depth of 0.1 mm. The failure modes of the tool with small chamfering width and corner radius were mainly cutting edge fracture and tool materials peeling off, which was due to the subcritical crack growth. The life of the tool with small chamfering width and corner radius well followed the Gamma distribution.
The Optimization of Modeling Orientation in FDM
Authors: Li Hong Bin , Tian Ying , Li Peng Lin , Zhang Lei , Wang Yu Long
Published: May 2016

This paper introduces an optimization algorithm for rapid prototyping. In the optimization algorithm, several important influencing factors are considered, such as the molding direction, the extrusion speed, and layer thickness, etc. And the velocity and effectiveness of the method are validated experimentally. The algorithm can get the best molding direction and maximum hierarchical layer thickness. The method is comprehensive, overcoming the problems of current optimization methods for one-side shortcomings, and can make guidance for the adaptive slicing and path planning.
Wear of PCBN Tool when Cutting Materials Difficult-to-Cut Based on Thermodynamics Solubility
Authors: Shao Fang , Wang Yu Ting , Xiao Ying Qun , Xiao Li Hua , Zhang Ke Sheng , Cai Qun
Published: May 2016

Cutting temperature always highly reaches over to 1000¡æ when high speed machining with PCBN tools. Diffusion of tool material element may have important influence on tool wear at such high temperature., the diffusion wear and oxidation wear have become the major wear mechanism. In this paper, the rules of diffusion wear and oxidation wear for PCBN cutting tools are proposed and analyzed based on thermodynamics theory. Dissolution concentrations in typical normal workpice materials of PCBN tool material at different temperature are then calculated. Diffusion reaction rules in high temperature are developed and analyzed using Gibbs free energy criterion. The machining tests were conducted using the PCBN tools at different cutting speeds of 50, 95,100 and 180 m/min, feed of 0.1, 0.2 and depth of cut of 0.1, 0.8, 1, and 1.5 mm respectively on PUMA300LM numerically-controlled lathe. It was found that the theoretical results were uniform with the experimental data; the results will provide useful references for tool material design and selection.
Effect Analysis of Multifactor of HSS Tap Life Based on Orthogonal Experiment with Interaction
Authors: Guo Hong , Yan Xian Guo , Liang Xiao Yang , Li Jun Ji , Zhi Hong Ying
Published: May 2016

In order to ensure the effect of three types of parameter to HSS tap life, orthogonal experiment with interaction included was applied to accomplish the experiment of W9Mo3Cr4V HHS tap tool life. These parameters are cutting parameter (CP)--tap speed, process parameter (PP) -- temperature of cryogenic treatment, and structure parameter (SP)--rounded cutting edge radius. According to range analysis, the sequence of factors including the individual factors and interaction factors that we obtained is PP, SP, PP×CP, CP, CP×SP, PP×SP, CP×PP×SP. The sequence shows that the former interaction takes part in deciding the optimal factor combination. The optimal combination is CP2, PP1, SP2, namely, when tap speed is 11.3 m/min, temperature of cryogenic treatment is -120°C, and rounded cutting edge radius is 0.032mm, HSS tap life is 620(holes).
Quantitative Analysis and Evaluation of Valve Core Spherical Surface Grinding Texture
Authors: Xu Li Ming , Wang Yu Jue , Hu De Jin
Published: May 2016

High hardness surface coating sphere components are widely used in metal sealing ball valves. The spherical surface grinding texture influences the valve’s tribological performances such as friction, lubrication and wear of interacting surfaces. It can be used to develop the index of grinding parameter optimization. In this paper, based on the discussion of sphere generating grinding methods, the surface grinding texture is quantitatively analyzed. The space trajectory of abrasive particles during sphere grinding is studied. The trajectory mathematical models are built based on two kinds of sphere grinding manners and are verified by comparing the theoretical results against experimental measurements. The influence of grinding parameters on the texture is analyzed. Texture density are defined to quantitatively describe the surface texture. The relationship between grinding texture and ball valve performance is finally discussed. The conclusions can help to optimize the spherical surface grinding process.
3D Model Reconstruction of the Broken Aero Engine Blade Based on the Detection Operator
Authors: Wang Hao , Tong Guo Jun , Wang Tao , Wang Li Wen
Published: May 2016

This paper made the digital model reconstruction of the RB211 high pressure turban blade. First, collected rough points cloud data by using visual measuring equipment. Then, finished pre-processing the point cloud data, took the rational simplification. Finally, a new algorithm was used to reconstructing the 3D digital model. The results proved that this method improved smoothness of the model, and reduced time and cost of modeling and machining.
An Efficient Parallel Association Rules Mining Algorithm for Fault Diagnosis
Authors: Ji Hai Peng , Wang Tai Yong , Liu Jing , Fan Shi Yan , Wang Zhi Peng , Zhang Kai Ran
Published: May 2016

With the development of Internet industry, equipment data is increasing. The traditional method is not suitable for processing large data. Aiming at inefficient problem of Apriori algorithm when mining very large database, an efficient parallel association rules mining algorithm (Advanced Pruning Parallel Apriori Algorithm) based on a cluster is presented. APPAA algorithm can enhance the mining efficiency, as well as the system’s extension. Experimental results show that APPAA algorithm cuts down 85% mining time of Apriori, and it has good characteristics of parallel and expandable.so it is suitable for mining very large size database of fault diagnosis.
Petri Nets in the Emu Pantograph Application of Fault Tree Analysis (FTA)
Authors: Ye Shi Feng , Chen Dong Xiang , Wang Tai Yong , Wang Dan
Published: May 2016

This paper presents the fault mode and barb causality diagram of the pantograph of the emu, by settling and counting fault information of the pantograph. And fault analysis of the pantograph is used to establish the fault tree. The Petri net model of the pantograph is simplified on the base of the principle of duality and resorption by combining the modeling theory of Petri net and the fault tree. The minimum cut set is obtained by solving the above simplified model with incidence matrix. Compared to common solution of the fault tree, this integrated model efficiently simplifies computation of complicated fault tree. The method raised here saves the time of computation which increases the efficiency of analysis, and improves the accuracy of fault diagnosis.
Rolling Bearing Fault Evolution Based on Vibration Time-Domain Parameters
Authors: Wu Zhe
Published: May 2016

Fault state is central to the achievement of equipment operation stability and security. On the basis of the analysis of the general process, basic characteristics and evolution of rolling bearing fault formation, according to the uncertainty of rolling bearing fault generation mechanism, highly nonlinear of fault evolution and diversity of fault modes, establishing a rolling bearing fault evolution model based on vibration time domain parameters.
The System of Tensile Test Based on Multi-Agent Virtual Instrument
Authors: Wang J.B. , Wang H.F.
Published: May 2016

This paper presents a system of tensile test based on multi-agent virtual instrument to reduce difficulty and improve intelligence of virtual instrument development. Each software unit of the virtual instrument was designed independent agent. The multi-agent system was generated by the interaction between the agents, and applied successfully to low-carbon steel tensile test experiments. The experimental results show that the response speed and sensitivity of virtual instrument have been improved. Other the development of virtual instrument becomes more simplified, and enhance the ability of the system reconfigurable and intelligent level.
A Processing Method of Identifying Spectrum of Shock Load for the Combustion Gas Stream
Authors: Lian Ping , Jin Xiu Wen
Published: May 2016

The spectrum of the load component is retained and the spectrum of other components are eliminated by the identifying spectrum is processed with addition or subtraction in the frequency domain. The method avoids an error that Gibbs’ vibration is generated as the signals multiply each other in frequency domain is equivalent to the signals are convolution in time domain in the filtering. On the basis of Fourier transformation, the method only using addition or subtraction obtains useful frequency components. Compare with other processing methods, the processing result can satisfy the identifying requests. In practice, the method is simple and convenient and the operational error is less. It is a try for digital signal process.
Research of Noise Mechanism and Performance Improve of DVC Drum
Authors: Shang Zhi Wu , Chang Zhu , Liu Zhen Wu , Wang Tai Yong
Published: May 2016

Based on the structure and working principle of DVC Drum, noise and vibration characteristics of mechanical noise, electromagnetic noise and radiated noise of DVC drum was analyzed comprehensively and systematically. FEA was done to DVC drum and four order natural vibration modes were got. Noise resource of DVC drum had been identified and recognized by the method of cepstrum analysis and it was consistent with the experimental result. And specific ways used wavelet analysis to identify noise resource and diagnose fault was got. The method of noise resource identification was expanded and noise resource of DVC drum was identified accurately. Targeted design improvements were done to inner diameter of bottom drum, process of hot extrusion, connect method of tray bracket in high temperature tester, operating method in production line and packing method. Then fraction defective of DVC drum noise was reduced from 2.5% to 0.6%.It had important practical significance to research on vibration and noise reduction of similar products.
Application and Research on CNC Operation Panel Based on PMAC
Authors: Lin Yan
Published: May 2016

Based on the matrix keyboard with PMAC motion controller built-in PLC design program, the program is used for control of machine tool control panel. In a quick feed ratio knob button as an example, the key code is given. Compiled by the control program is simple, has the versatility and portability, great savings with PMAC motion controller I/O points, reduce the cost, and application in VNCZT - 545 machining center.
The Design of Pipe Dynamic Chase Cut Control System
Authors: Qi Shi Qing , Ma Guo Sheng , Ma Lian Jie
Published: May 2016

The paper is aim to design a control system fitting for fixed length cutting of industrial pipe. Electromechanical principles and methods of the system are elaborated in the paper. The system applies PLC which built-in electronic CAM to creates electronic CAM curve according to pipe chase cutting control’s requirements and the motion parameters’ calculation, so as to achieve the function of a synchronized motion in the cutting point that between the cutting platform and the pipes. A relatively static cutting is realized. There is no wearing and relative sliding in this system, furthermore, the processing precision and efficiency of the system are high, so it has a broad application prospect.
Optimization of the Frame and Performance Analysis of Solar Modules Based on Ansys Workbench and Solidworks
Authors: Wei Wei Hua , Zhu Ya Nan , Xue Tong Ming , Xie Si Yuan , Yuan Cheng Rong , Wang Tong Yue
Published: May 2016

Taking advantage of three-dimensional software Solidworks to model for solar modules and also using finite element analysis software Ansysworkbench to conduct the stress analysis and strength check of modules, to analyze the deformation of modules under certain loading conditions, to conduct load tests and defect detection (EL experiments) and to optimize encapsulation with aluminum frame combined with the factory laboratory. The results show that: the modules have no crack and other defects and their power attenuation does not exceed the specified value after the 2.0mm thickness aluminum frame was reduced to 1.7mm.
Research on Intelligent Tool Selection System Based on Optimization Model
Authors: Wang Rui , Zhao Wu , Luo Chun Jing , Wang Zhi Yong , Luo Tao
Published: May 2016

Over the last few decades, the range of engineering materials encountered in machine shops has increased greatly, as has the variety of cutting tools that are capable of machining these materials. The tasks of tool selection and cutting parameter recommendation for performing the operations are complex and require development of intelligent system. A cutting tool database system model is proposed in this paper. And base on the model, this paper presents a cutting tool database system for selection of cutting tools and conditions of turning operations. The model incorporates intelligent tool selection technology, optimization methods of tool selection and cutting parameter. An application example of the system was performed to demonstrate the practicability and validity of the prototype system.
Research on Online Collision Detection Algorithm of CNC Machine Tools
Authors: Sang Zhen , Wang Tai Yong , Zou Xiang Xiang , Xu He Nan
Published: May 2016

Collision detection is the core of the numerical control system of intelligent manufacturing in the manufacturing process of rapid feeding, positioning and cutting. We need to avoid collision between the cutting tools, machine tools and workpiece. Based on the characteristic of five-axis CNC system, we analyze the advantages and disadvantages of Hierarchical Mesh Segmentation and Octree. At last, we use the collision detection algorithm of cuboid and separation axis to optimize the algorithm of traditional NC machine tool collision detection, which improve the detection efficiency and accuracy.
Development of Bevel Gear On-Machine Measurement System Based on Open CNC System
Authors: Liu Qiong , Chen Dong Xiang , Wang Tai Yong , Zhang Jin Wang , Wang Dan , Tian Wei
Published: May 2016

Bevel gear is a complicated curved surface parts, the traditional measuring method of bevel gear is by three coordinates measuring instrument for related parameters measurement and there are problems such as reload, high cost and waste of time. In this paper, development of Bevel gear on-machine measurement system based on open CNC system so that the manufacturing and measuring of bevel gear on the same machine tools. This article mainly has studied on structure and function of the system, analyzed the method of pitch deviation and the tooth surface error of the bevel gear and developed bevel gear on-machine measurement system by combining the method of MATLAB with VC++ mixed programming.
Research on the Decision Support System for Cold Extrusion Process of Internal Thread
Authors: Miao Hong , Mei Qing , Yuan Jing Yun , Zheng Zai Xiang , Jin Yi Fu , Zuo Dun Wen
Published: May 2016

This paper established the model base, knowledge base, application base and test base for the cold extrusion process of internal thread and developed decision support system which realized the centralized management of related information for cold extrusion process of internal thread, maintained the consistency of data in real time and enforced the degree of information sharing. By using of the decision support system, expert system, intelligent inference technology and depending on the application requirements of the system, the overall structure of the decision support system for cold extrusion process of internal thread was established based on J2EE technology. Two accessorial decision-making methods of hybrid forecasting and application modification facilitated modeling the system business. Three-dimensional frame structure was used to represent the application example of the internal thread by cold extrusion process and to achieve the application type, information scalability of internal thread by cold extrusion process. Hybrid fast predicting mechanism which was the dynamic integration of internal thread by cold extrusion process knowledge and instance inference was applied to seek the optimal degree of internal thread by cold extrusion process.
Research on Mass Manufacturing Resource Sensory Data Management Based on Hadoop
Authors: Su Kai Kai , Xu Wen Sheng , Li Jian Yong
Published: May 2016

Aiming at the management issue of mass sensory data from the manufacturing resources in cloud manufacturing, a management method for mass sensory data based on Hadoop is proposed. Firstly, characteristics of sensory data in cloud manufacturing are analyzed, meanings and advantages of Internet of Things and cloud computing are elaborated. Then the structure of the cloud manufacturing service platform is proposed based on Hadoop, the information model of manufacturing resources in cloud manufacturing is defined, and the data cloud in the cloud manufacturing service platform is designed. The distributed storage of mass sensory data is implemented and a universal distributed computing model of mass sensory data is established based on the characteristics of Hadoop Distributed File System (HDFS).
Application of New Materials in Industrial Design
Authors: Li Xiao Dong
Published: May 2016

Based on the full cognition of the role of which new materials plays in industrial design, and combining the development of science and technology with increasing environmental awareness of human, this paper discusses the importance of new materials applications in contemporary industrial design. From the aspect of morphological characteristics, visual characteristics, features and bionic intelligence and so on, it analyzes the application effects of new materials in industrial design, showing that materials and industry design have the relationships that they permeate with each other, and they both play a significant role in the development of industrial design.
Research on the Performance Evaluation Model of Functional Technologies with Partial Least Squares Regression
Authors: He Yong Jun , Meng Qing Guo
Published: May 2016

Public Functional Technologies Service quality improvement is the inevitable requirement to promote socialist cultural greater development and prosperity. The government's function, in the public culture service provision, is the key factor influencing the quality and quantity public of cultural service provision; the evaluation towards government public cultural service performance by constructing a comprehensive evaluation index system, can not only scientifically measure the objective level of public cultural service, but also promote the standardization and sustainable development. This paper, by the new public management theory, around the core idea of the service, constructing the public cultural service government performance evaluation index system, by using the partial least squares size model complex data table method, hopes to provide a theoretical reference for the construction of more comprehensive and more scientific index system of public cultural services by the evaluation system of our country's data analysis from 2009 to 2013.
The Influence Materials on the Product Design and Manufacturing
Authors: Zhang Yuan , Chen Shi Jie
Published: May 2016

People create function of product, and also give it a certain form at the same time. It expresses a certain structure depending on the material. The process of product design is that of understanding and application of materials, and also a process of creation and innovation. So materials have important effects on product design and manufacturing. This paper discusses the application of the traditional materials in product design and its development trend, and mainly discusses the application of nanomaterials in automobile design.
The Research on Cost Analysis of Mechanical Product Manufacturing Process
Authors: Wang Zi Jing , Zhang Yu Ming
Published: May 2016

In this paper, through a medical product company cost analysis, the main characteristics
and the existing problems are obtained in the development of the company, the analysis results show that: the importance and validity of the cost analysis method. At the same time, the results of the analysis can predict the future of enterprise and provide the beneficial reference for the enterprise investors and other information users. Also, it is helpful to make the right decisions and evaluate of enterprise status.
The Research & Application on the Credit Appraisal Model of Architecture Enterprise by the GA-BP Neural Network
Authors: Yan Feng Gui , Fu Li Ping
Published: May 2016

s: According to index selection principle, and considering the process of selection as well as the characteristics of the architecture enterprise, this paper establishes a set of comparatively rational index appraisal system. Based on method of primary component analysis, we obtain the components from credit appraisal index of 24 architecture enterprises. It singles out the GA-BP Neural Network as the credit appraisal method of architecture enterprise, sets up a credit appraisal model of architecture enterprise, and finally verifies the practical and scientific attribute of the model.
Study on the Dynamic Characteristics of the Winding Head
Authors: Yan Jiang , Wang Yong Xing , Li Su Jia , Hou Xi , Wang Sheng Ze
Published: May 2016

According to the structure and production processing requirements of polyester filament winding head, a finite element dynamic model of the winding system in parameters time-varying was established. By using the method of numerical calculation, the dynamic characteristics of the winding head were analyzed in three processes: rapid starting-up in empty volume, winding filament process and stopping in full volume. By studying the influence of the three processing under large stiffness coupling and soft stiffness coupling in the winding head, the role of the coupling stiffness and spindle structure was revealed in different working process.
The Designing of High Speed Presses Safety Gates
Authors: Jia C. , Xiao D.S. , Yang J. , Xiao M.H. , Lu X.J.
Published: May 2016

Press was an important kind of mechanical equipment manufacturing need, and it has been widely used in equipment manufacturing, but its security problem had not been solved. Accidents have caused wide attention. Through the analysis of press injury accident, this paper expounded the importance of press safety protection system. According to the study of existing press safety protection system analysis and the theory of knowledge, a specific design scheme was put forward.
The Research and Design of a Storage Variable Delivery Machine
Authors: Jiang Yong Xiang , Deng San Peng , Marui Jun , Li Qiu
Published: May 2016

Because of the existing delivery machine’s fixed structure, its storage space is unable to adjust flexibly according to the size and quantity of express deliveries, the storage variable delivery machine is designed. The delivery machine structure comprises a display screen, an electromagnetic door for administrator, a fetching port, a panel’s storage container, a storage variable storing container, a storage variable storing modules, a variable storage fetching module and a manipulator module. The storage variable storing container, storage variable storing modules and variable storage fetching module are used to adjust the size and number of storage space. The storage variable delivery machine has the advantages of simple structure and has a wide market prospect.
Finite Element Analysis and Experimental Study on Failure Rolling Bearing
Authors: Wu Zhe , Zhang Jian Chao
Published: May 2016

As the most important component of moving parts in the wheel set system, the rolling bearings’ performance is the key to the safety of locomotive running. In this paper, the finite element model of rolling bearing with fault of inner ring stripping was established in ABAQUS, the first twenty orders of natural frequency and mode characteristic was analyzed. The highest frequency was used as the center frequency of the band pass filtering in the process of resonance demodulation and this technique was validated with simulation. Then fault vibration signal of rolling bearing was collected using wheel set running-in test bench and was analyzed with this method, the comparison proved that the simulation and test results basically tallied.
An Approximate Analytical Solution for Dynamic Response of a Large Nonlinear Rotor-Bearing System
Authors: Liu Xiao Ying , Yang Cai Jing , Zhou Li Ping , Wang Yu , Wang Jia Sheng
Published: May 2016

Large nonlinear rotor-bearing system is an important structure in rotating machinery, such as NC machine. Due to the mass imbalance of the system, vibrations induced by centrifugal forces inevitably exist in rotating machinery. So, nonlinear dynamic response of a complex rotor-bearing system was dealt with in this paper. The system considered was modeled using the finite element method and has 124 DOFs (degrees of freedom). A linear reduction method was used and a reduced-order dynamic model of the system with two DOFs had been obtained. Harmonic balance method was applied to the reduced-order dynamic model of the system and an approximate analytical expression of the solution for nonlinear dynamic response of the system at steady state was derived. The analytical solution obtained from the reduced-order dynamic model of the system was compared with the numerical one obtained from the direct integration of the equations of motion of the original system.
Numerical Simulation of Duck Wave Energy Converter
Authors: Yao Ying Xue , Li Hai Long , Wu Jin Ming , Zhou Liang
Published: May 2016

Duck wave energy converter has the advantages of high conversion efficiency, simple construction, low cost relative to other wave power device. In the paper, the numerical simulation of the response of the converter was calculated by the AQWA software which based on the three dimensional potential flow theories. The results show that the pitch angle appear the peak when the incident wave frequency is 1rad/s and the maximum of the pitch angle come out as the linear wave normally incident the duck body, which means duck wave energy converter can absorb more wave energy in this angular frequency. The above research can provide reference for the design of the duck wave energy converter.