bluuebunny/crossref_metadata_2025 huggingface dataset:
Applying a Model-Driven Framework for Gap Analysis
Authors: de Castro Valeria , Marcos Esperanza , Vara Juan Manuel , van den Heuvel Willem-Jan , Papazoglou Mike
Published: December 2013

The objective of business service engineering is the re-use of business process functionalities in new composite applications. To achieve this aim it is necessary to start capturing the existing application portfolio and software resources (i.e. legacy systems, existing enterprise applications, etc) and comparing them to “new” business service functions that need to be provided in a new, redesigned environment. This comparison between new business functions or business requirements (to-be) and current capabilities (as-is) is known in business process management sciences as gap analysis. This chapter presents a model-driven framework for gap analysis that identifies and conceptualizes the processes and services in a business domain by discovering potential overlaps and discrepancies between them. The proposal involves the identification and manipulation of mappings between as-is and standard to-be business process models. The authors describe, by means of a basic implementation, how model-driven techniques can be used to detect intersections and disparities between particular as-is and to-be models.
Towards Event-Driven Enterprise Architecture
Authors: Kim Hyeonsook , Oussena Samia , Essien Joe , Komisarczuk Peter
Published: December 2013

Enterprise Architecture (EA) has been researched to supply components for enterprise system modelling, including taxonomies, meta-models, architecture development methods, and modelling tools. However, EA now faces a big challenge due to the rapidly changing market demands and business environments. From the technology point of view, there are already matured, promising paradigms that tackle this challenge, such as Complex Event Processing (CEP). However, this has not been fully explored with EA. This chapter investigates the possibility of integrating Event Driven Architecture (EDA) into EA modelling. A modelling framework, “Event Driven Enterprise Architecture Modelling Framework” (EDEMF), is proposed for the adoption of complex events as a main viewpoint and incorporation of event process modelling in EA. An event-centric thinking is applied to the contextual analysis, followed by a translation of the analysis into conceptual and logical EA models, including complex event model; the EA models are then transformed into physical models grounded in existing or new enterprise system components. This approach has been achieved by providing an extension to ArchiMate, an EA modelling language. The feasibility of the proposed approach is demonstrated using a case study that applies to a student internship program. The case study uses a semantic web platform.
A Preliminary Study of Neuro-Linguistic Programming in Nonprofit Organizations
Authors: Kong Eric , Farrell Mark
Published: December 2013

Knowledge and learning capabilities assist organizations to become more innovative and adaptive as the capabilities help organizations to recognize and assimilate knowledge and apply it toward new ends. The development of the capabilities becomes critical if organizations are to become and remain competitive. Previous literature-based research suggests that Neuro-Linguistic Programming (NLP) helps to facilitate the development of knowledge and learning capabilities in organizations. NLP suggests that subjective experience is encoded in terms of three main representation systems namely: Visual, Auditory, and Kinesthetic (VAK). Based on 15 qualitative in-depth semi-structured interviews across 7 Australian nonprofit organizations, this chapter argues that NLP may be used as a key approach for nurturing organizational knowledge and learning capabilities for innovation in the knowledge economy. Examples are used in the chapter to illustrate the possible benefits of utilizing NLP in developing the capabilities for organizational innovativeness. Future research direction and limitations are also discussed.
ICT Adoption, Capabilities Development, and Innovation Processes in Argentina
Authors: Novick Marta , Rotondo Sebastian , Breard Gerardo
Published: December 2013

The discussion on innovation and the adoption of new Information and Communication Technologies (ICT) and their impact on economic growth and development have flared up in the past few years. This debate has become increasingly relevant in emerging countries like Argentina, which, in spite of high economic growth rates in the last decade, has been facing the challenge of quality employment creation. This chapter analyzes the impact of the ICT diffusion process in Argentine companies from a firm-level employment, innovation capabilities development, and knowledge management approach. Recent findings support the linkage between different firms’ ICT adoption patterns and the development of innovation capabilities, employment dimensions, and knowledge management practices. These results provide evidence to think and develop new productive and technological policies.
Opportunities and Challenges in Socially Inclusive Innovation
Authors: Peñalba Linda M. , Elazegui Dulce D.
Published: December 2013

This chapter analyzes the opportunities and challenges for modern biotechnology, particularly Genetically Modified (GM) corn, in addressing social inclusion to ensure its equitable outcomes or impacts. It examines the policy environment in which GM corn was introduced and the related socioeconomic concerns. The study reveals that in the Philippines there is no institutionalized mechanism yet to determine if GM corn promotion policies and strategies conform to the social inclusion context of biotechnology. Governance of the GM technology and the interplay of the innovation system intermediaries hindered the full realization and application of social inclusion principles. Interventions to monitor socio-economic impact, knowledge transfer and interaction, and credit support delivery are needed for a more socially inclusive innovation. There should be a continuous interactive learning among various stakeholders to have evidence-based information on the technology.
The Promise of Open Source Systems/Software in Developing Requisite E-Government Solutions for the Developing Countries
Authors: Tella Adeyinka , Tella Adetayo O.
Published: December 2013

E-Government open source system is now becoming commonplace. The e-Government open system requires at each review stage the relevant official input, the date, and the time when each application is processed. Free access to the status of an application makes applicants realize that there is no need to contact officials or to provide a bribe to complete the process. No doubt, e-Government open system is a very useful system currently being used by a majority of governments in developing world countries. However, extant review of literature has shown that some developing countries governments are now also making frantic effort to implement the open system although the practice seems to have gone farther in developed nations. In light of this, this chapter discusses e-Government open source system in developing countries and compares this to what is happening in the developed countries, examines the role OSS/SF has played in developing e-Government solutions or applications in the developing world, identifies the benefits and challenges of OSS/SF in the developing countries’ context, and discusses possible ways forward. The chapter posits that open source plays a significant role in designing e-Government applications.
Anti-Corruption Capabilities of Public E-Procurement Technologies
Authors: Neupane Arjun , Soar Jeffrey , Vaidya Kishor
Published: December 2013

Public procurement is an important area warranting further attention in government reform, as electronic systems for procurement have enormous potential to help reduce corruption. Public e-Procurement is the use of an Internet or Web-based system by government institutions for the acquisition of goods and services, which can improve transparency and accountability. This chapter discusses different types of e-Procurement technologies with case examples from different countries that demonstrate how the e-Procurement technologies have great potential as the anti-corruption technologies. The chapter reviews the Principal-Agent Theory and discusses other relevant theories including Transaction Cost Theory, Fraud Triangle Theory, Diffusion of Innovation Theory, and the Technology Acceptance Model. Following a discussion of the potential of e-Procurement systems in mitigating corruption, a theoretical research model is proposed for identifying public e-Procurement anti-corruption capabilities.
E-Justice in Administrative Process
Authors: Bilevičienė Tatjana , Bilevičiūtė Eglė
Published: December 2013

Social technologies are slowly occupying the central place of available and emerging solution for a variety of socio-economic problems. Although not a panacea, it cannot be overemphasized that social technologies have an influence on the social effects of humans, social groups, hierarchical social structures (such as public administrations, local authorities, non-governmental organizations, etc.), and behaviour. Of late, there has been an escalation in the use of social technologies in the legal fraternity. The Lithuanian government has started putting in place interventions that promote the utilization of social technologies into legal administrative processes. This came after the realization that Lithuanian citizens have the right to full and truthful information about administrative law and administrative processes. Using extensive literature reviews, this chapter probes the key success factors that need to be considered in the successful utilization of social technologies in legal administrative processes. The chapter posits that within the e-Government realm, the opportunities to be amassed from the use of Information and Communication Technologies are immense.
Critical Perspectives of E-Government in Developing World
Authors: Afolayan Gbenga Emmanuel
Published: December 2013

This chapter utilizes extensive literature reviews to assess the different perspectives of e-Government development in developing world contexts. In order to do that, the chapter presents a case study from Jordan assessing the design and reality gaps of e-Government interventions using the ITPOSMO model. The chapter posits that e-Government for development is likely to grow only if there is deliberate cognisance of culture, real work practices, and of the broader technical and socio-political environment with which the e-Government projects are introduced and applied in the developing world.
Scientific Abstraction in Presidential Debates
Authors: Diels Janie , Gorton William
Published: December 2013

This chapter takes a Cultural Indicators approach to link a large-scale increase in IQ, known as the Flynn Effect, to a specific cultural product, televised presidential debates. James R. Flynn has shown that IQs of persons living in industrialized societies have increased steadily over the past century, averaging a three-point gain per decade. Flynn suggests that the IQ gains are attributable to an increasingly conceptually complex social environment. According to Flynn, an important cause of this enriched cognitive world is the increasing permeation of scientific categories into cultural products such as literature, news, and even video games. The authors test whether the use of abstract scientific terms and the employment of such terms in causal and logical analysis has increased over time in presidential debates. No evidence that the discourse in these debates has become scientifically richer is found, and it is suggested that scientific discourse with respect to economics has actually declined.
Language Policy Argumentation and Rhetoric, Pre- and Post-9/11
Authors: Rodríguez Janice Snow
Published: December 2013

In the post-9/11 era, the debate on the necessity of an official language has resurfaced. While the historical context for the policy push has changed, have the underlying arguments for official English? To consider this question, the content of legislation, discourse, and media coverage of state-level English language policy debates before and after September 11, 2001 was analyzed. Nearly 2000 texts spanning 1994 through 2008 were examined to return composite scores for 5 overarching semantic features and 35 sub-features. Statistical analyses indicate significant differences between the pre- and post-9/11 legislation in the variable commonality. In the post-9/11 groupings of news stories and opinion pieces, the variable certainty decreased significantly, while realism and the sub-variables denial and blame increased significantly. This study provides an additional perspective on the events of 9/11, examines the role of persuasive argumentation in the policy process, and expands the tools available to the policy analyst.
Rhetorical Negotiation and the Presidential Press Conference
Authors: Hart Roderick P. , Scacco Joshua M.
Published: December 2013

This chapter traces the language of presidential press conferences, keying particularly on three axes said to distinguish journalistic and presidential behavior: (1) the interrogatory-protective binary, (2) the clinical-promotional binary, and (3) the grounded-transcendent binary. While theory suggests that such differences exist, empirical studies have not yet confirmed them. The present study does so, showing that reporters and presidents use language quite different from one another and that those distinctions remain constant over time. The press conference presents unique generic opportunities (and challenges) for the president. That is also true for reporters but in much different ways. The chapter also traces how the press conference has tipped increasingly in the president’s favor over time, especially when matters of foreign policy have been discussed.
Is Candidate Rhetorical Tone Associated with Presidential Vote Choice?
Authors: Grose Christian R. , Husser Jason
Published: December 2013

Can voters be persuaded to support a candidate based on a candidate’s rhetoric instead of a candidate’s issue positions? Combining theoretical insights on voter decision-making drawn from valence theories of candidate position-taking with insights from theories of rhetoric and persuasion, the authors argue that candidate rhetorical tone can sway voters to a candidate’s side. Using DICTION 5.0, the tone of candidate speech in U.S. presidential elections is examined from 1976-2012. Candidates who present themselves using language that draws on themes of commonality, activity, and realism are more likely to win a citizen’s vote in elections. Rhetorical tone can sway voters, but only those moderate voters who are distant from both candidates. Rhetorical tone is unlikely to have an effect on voters who perceive high ideological agreement with the rhetorically-disadvantaged candidate.
Global Warming as a Socioscientific Controversy
Authors: Stewart Craig O. , Rhodes Claire
Published: December 2013

Socioscientific controversies are “extended argumentative engagements over socially significant issues … comprising communicative events and practices in and from both scientific and nonscientific spheres” (Stewart, 2009, p. 125). While global warming is not controversial among the vast majority of climate scientists, socioscientific controversies over global warming abound in various media, as citizens, politicians, journalists, and others discuss and weigh the scientific evidence for and appropriate policy responses to global warming. In this chapter, the authors investigate the lexical choices used in the New York Times in straight news articles reporting on controversies about global warming from 2001-2006, as partisan differences on this issue became more pronounced. Specifically, using DICTION 5.0, the authors analyze 87 news reports, comparing those focused on science issues with those focused on policy issues. These statistical lexical comparisons are supplemented with qualitative discourse analyses.
Communicating Nation Brands through Mass and Social Media
Authors: De Moya Maria , Jain Rajul
Published: December 2013

Nation branding efforts are the means through which many countries attempt to influence how foreign publics perceive them. However, in a media landscape that now includes not only traditional one-way media but also two-way social platforms, countries undertaking these efforts are presented with a series of new challenges. This environment makes it more difficult to manage the issues associated with a nation brand, challenges countries to better communicate their advantages, and allows the public to create its own, potentially competing, messages about a country. Building on previous work on nation and destination branding, this chapter discusses the changing media environment in which nation-branding efforts are taking place, and—through a combination of DICTION®-assisted, manual, and qualitative content analyses—provides evidence of the new media landscape in which nation branding is taking place. The challenges and opportunities created by this new context are detailed, and potential avenues for further research are discussed.
Evaluation Metrics for the Summarization Task
Authors: Fernandes de Oliveira Paulo Cesar
Published: December 2013

Summary evaluation is a challenging issue. It is subjective, costly, time consuming, and, if it is human-assisted, can generate some bias. Due to this, several attempts have been made in the last decades in order to avoid all these drawbacks. Those attempts focused on automatic summary evaluation. This chapter provides a comprehensive survey about studies that have dealt with this topic and proposes and describes the development of an automatic summary evaluation method. In addition, it presents some experiments that have been carried out in order to assess the method’s performance.
Multilingual Summarization Approaches
Authors: Sarkar Kamal
Published: December 2013

As the amount of on-line information in the languages other than English (such as Chinese, Japanese, German, French, Hindi, etc.) increases, systems that can automatically summarize multilingual documents are becoming increasingly desirable for managing information overload problem on the Web. This chapter presents an overview of automatic text summarization with special emphasis on multilingual text summarization. The various state-of-the-art multilingual summarization approaches have been grouped based on their characteristics and presented in this chapter.
Development of Energy Finite Element Analysis in Vibration Analysis of Composite Laminate Plate Structures
Authors: Yang Yang , Chen Xi Liang , Zhang Wen Wu
Published: December 2013

The high frequency vibration analysis of a composite laminate plate structure subjected to impact loads was investigated by using method of energy finite element analysis (EFEA). The time and space averaged energy density was used as the primary variable to form the governing differential equations. The multilayer laminate plate is simplified to be equivalent isotropic plate using the average concept, such as the average damping loss factor and the average group speed. The global system of EFEA equations can be solved numerically and the energy density distribution within the whole system can then be obtained. The EFEA numerical results for composite laminate plate structure were validated through comparison with those of very dense conventional finite element analysis (FEA).
Chaotic Motion of Axial Loaded Beam Bridge Subjected to an Infinite Series of Moving Loads
Authors: Du Li Feng , Yang Xin Wei , Li Jun Jun
Published: December 2013

We presented a novel model which comprises an axial loaded beam bridge subjected to an infinite series of regularly spaced concentrated moving loads. The axial force coupled with the moving loads can lead the vibration of the beam bridge to chaos that drive the system of a given basin and jump to another one, causing damage due to the resulting amplitude jumps. An infinite sequence of moving loads leads to a barrier for conventional nonlinear techniques. The amplification and minification of integral inequality are proposed, which lead to the criteria for chaotic motion directly for the nonlinear system with a half sine pulse excitation avoiding the conventional approximation methods to retain the nature characteristics of the system. The results show the chaotic motion takes place in the system.
Heterogeneity of Rock Corroded by Acid Mine Drainage Based on Fractal Theory
Authors: Jiang Li Chun , Yin Sheng Hua , Wu Ai Xiang
Published: December 2013

Heterogeneity has been considered as a critical character of the rock structure. Fractal dimension makes it applicable to describe the complexity structure quantitatively. The evolution of rock heterogeneity has been investigated by surface fractal dimension parameter and covering projection method. The fractal behavior of meso-structure of the rock corroded by acid mine drainage was obviously observed. The fractal dimension of the rock structure was chosen to describe the heterogeneity of the rock structure attacked by Acid Mine Drainage. It observed that the fractal dimension of the rock structure increased and the rock heterogeneity became more distinctive during the process of attack.
Experimental Research on Hydration Heat Temperature of Concrete Box Girder in Low-Temperature Environment
Authors: Sun Wei Gang , Liu Lai Jun , Wu Qun Hu , Feng Jian Ping
Published: December 2013

The temperature stress is one of the main reasons for early age cracking of concrete under low temperatures,it has the actual value of reference for the design and construction of concrete structures to study the regularities of hydration heat temperature of concrete box girder in low-temperature environment. Therefore, through the test of concrete box girder hydration heat temperature, this paper analyses the temp-time curves of temperature of the concrete box-bridge cross section. The results can be used for concrete temperature control and/or cracking control of box girder in similar environmental area.
Stability Analysis and Prediction of Slope on Complex Excavated Construction Site
Authors: Chen Chun Li , He Kai , Li Tong Lu
Published: December 2013

With the rapid development of the economic construction in loess region, a large number of cutting slope excavation engineering were done in order to pioneer more construction space. The safety of this kind of project is worrisome because the scale of excavation is increasing and the cutting height of slope is rising. A high slope in Yan’an is selected for typical case and the stability of the slope is calculated by GTS software. The process of the deformation and destruction are analyzed and predicted from the relationship between the stress and the strength of the most dangerous slip surface. The research results can not only services in the engineering construction directly, but also play a guiding role to engineering construction in the loess region in China.
Key Components for RC Frame Structure during Progressive Collapse
Authors: Tu Bing Bing , Zhao Dong
Published: December 2013

To illustrate the changes of important components during progressive collapse, this paper sums up the judgment method for important components. Based on the alternate path method and the concept of sensitivity analysis, we determine the key component of a RC frame structure. Then the changes of important components during progressive collapse are given. The results show that the location of key components changing with the structure damage in the process of progressive collapse.
Adsorption of Cefradine onto Powder and Activated Carbon Prepared from Orange Peel
Authors: Guo Rui Xin , Wang Zhi Liang , Li Guo Ping , Chen Jian Qiu
Published: December 2013

The adsorption of cefradine was carried out using biological adsorbents of powder and carbon prepared from orange peels, an agriculture by-product. The equilibrium was easily reached in less than 10 minutes, with adsorption rates of more than 98%. Cefradine showed a firm combination to the adsorbent, which could hardly be damaged or affected by pH values. After equilibrium was reached within 1 h, no desorption behavior was observed in the next 30 minutes. The adsorption process could be well fitted thermodynamically to both Freundlich and Langmuir equations. Similar results could also be obtained using ashes of orange peel, as well as carbon prepared from pistachio and peanut hull, indicating an attractive option to treat industrial wastewater.
Internal Defect Measurement of Bonding Structure Based on Infrared Thermal Image
Authors: Yuan Li Hua , Wu Guan Hua , Wu Wei
Published: December 2013

The internal defects of bonding structure of 2A50 block wrought aluminum were researched by a sequence thermal images which were obtained in the cooling process by thermal infrared imager with thermal excitation. Each image in the sequence could visually reveal internal defects of the specimen, which shapes projected on the surface. And sequence diagrams could reflect the differences between the temperature gradient of the defects and that of the uniform in the cooling process. Moreover, the more continuous and smooth edges of defects were obtained by rotating track the maximum gradient edge detection method in order to further quantify the size of the defects. The test results showed that infrared thermal imaging technology should be the rapid and effective method to detect internal defects of composite materials.
Preparation and Characterization of UV Curable Hybrid System Based on Free Radical and Cationic Mechanism
Authors: Zhang Li Juan , Wu Chen Bo , Yang Fei , Geng Xiao Yi , Li Meng Qian , Xiao Ji Jun
Published: December 2013

A UV curable hybrid system with a dual mechanism of radical and cationic photo-polymerization, was investigated. A kind of free radical oligomer with low viscosity named hexahydrophthalic acid diglycidyl acrylate was first synthesized. The structure of the oligomer was characterization by FTIR. The UV curing processing of hybrid system was traced by real-time FTIR, and compared with free radical, cationic system. Thermal decomposition temperature and glass transition temperature of UV curing film for various system were determined by thermogravimetric analysis (TGA) and differental scanning calorimetry (DSC), respectively. And physical and mechanical properties of those curing films were analyzed and compared. The results show that the radical polymerization of double bond and cationic polymerization of epoxy group could occur simultaneously in hybrid system. The conversion rate of epoxy group for hybrid system was higher than that of epoxy group for cationic system, which demonstrated that the cationic photo-initiator (DPI·PF6) can be sensitized by the free radical photo-initiator (Irgacure 184). Compared with free radical and cationic system, the hardness and mechanical properties of hybrid system curing film were better than those of the cationic system curing film, while closed to those of free radical system.
The Effect of Ultrasound on Oxidation Desulfurization of Diesel
Authors: Sun Ming Zhu , Zhang Bing , Wu Yong Hong , Zhu Jing , Zhao De Zhi
Published: December 2013

Oxidation desulfurization, particularly to the deep oxidation desulfurization, is one of the most effective routs to meet the environmental requirements prior to the application of diesel. In this article, the author developed an improved way of oxidation desulfurization for diesel by the aid of ultrasound, which opens up a new technology. As the experiment results show that in comparison with traditional oxidation desulfurization, ultrasound-aided oxidation desulfurization for diesel achieves better desulfurization result, along with the reduction of oxidant-oil ratio, reaction temperature and time. In sum, it has proved ultrasound-aided oxidation desulfurization being a facile and significant way with a bright prospect for upgrading diesel.
Influence of Ultrasonic Vibration on Metal Plastic Forming
Authors: Hu Xing Jia , Li Xin He , Qin Qing Yuan
Published: December 2013

Establish the ultrasonic single-point extrusion experiment platform to carry out the experiment of conventional extrusion and ultrasonic extrusion for different materials. Compared with experimental results, explore volume effect of ultrasonic vibration plastic forming and analyze the impact of different amplitude of ultrasonic resonance on material's plastic deformation volume. It can be found that ultrasonic vibration has an influence on stress-strain of material to a certain extent. Take advantage of the MSC.Marc finite element simulation software to continually modify the stress-strain curves of the material, finally the simulation result coincides with experimental conclusion. The results show that ultrasonic vibration has a significant impact on metal forming, improving the flowing property of metallic material processing, and softening materials, which further proves that ultrasonic vibration has great effects and provides the theoretical basis for it in material of plastic processing application.
Test-Bench Design for Fiber Paying-Off Simulating
Authors: Ma Bao Ji , Han Bing
Published: December 2013

The test-bench is used to simulate aircrafts posture in the air and it is for testing dynamic relief force when the fiber is paying off at high speed. In this paper, through analysis and contrast of the horizontal motion and the pitch motion, the scheme of movement is achieved. Based on the scheme of movement, the structural design and analysis on the stiffness and strength of key parts are done in the paper, the results shows that movement can be achieved.
The Finite Element Analysis of Batching Machine Spindle Based on ANSYS
Authors: Gu Xing , Wang Wei Jun , Lin Ning , Shin Dong Ik
Published: December 2013

In this paper a batching machine for rubber production is presented which is widely used in rubber industry.This paper introduced the practical application and mechanical structure of batching machine then it elaborated the rotating component and the importance of shaft structure and parameters for its working qualities and working accuracy. Then it introduced the the spindles static and transient response based on ANSYS. It lays a foundation for optimal design.
Dynamics Simulation of Sounding Rocket Water Landing Recovery with Fluid-Structure Interaction Method
Authors: Zhou Wei , Yang Xuan , Yang Hua
Published: December 2013

This paper presents the water landing dynamics simulation of a sounding rocket, obtaining dynamics characteristics of the interaction between the rocket payload module, the floatation airbag and the water. Using an explicit nonlinear dynamic finite element code, the model contains Lagrangian shell elements for rocket payload, membrane elements for the airbag and Eulerian elements for the water. The Fluid-Structure Interaction (FSI) technology is employed in the computation by transferring forces on nodes of coupling surfaces. In the paper, two landing attitudes are analyzed and compared. After analyzing dynamic response of airbag under different operating conditions, the minimum size is concluded. This dynamics simulation builds the foundation for the Engineering Model of the recovery system.
Simulation of Influence of Friction Coefficient on Extrusion of TC4 Alloy
Authors: Liu Chang Dong , Zhang Yi Du
Published: December 2013

Based on Simufact11.0, a 3-D model of T profile extrusion is established and the extrusion process of TC4 is investigated using finite volumemethod(FVM) of Euler mesh description. Effects of different friction coefficients on the effective stress, extrusion pressure, effective strain and effective strain rate have been studied. The study shows that there is a high-stress zone at a certain distance from the entrance of the forming area and a high strain rate zone around that area. With the increase of friction coefficient, the value of the stress increased and the deformation is more uneven. The track of extrusion pressure shows that extrusion increase with the increase of friction coefficient.
The Research of Parallel Driving Model Based on Cognitive Analysis and Behavioral Analysis
Authors: Chen Xiao Li , Li Xiang
Published: December 2013

Mankind is capable of cognizing and handling multiple tasks at the same time. Driving is the task in which the continual combination and alternation of various basic tasks is involved. And, a number of the foresaid basic tasks need to be handled and completed simultaneously; therefore, the research looking into the parallel behavior of drivers is needed. Parallel driving has the attributes, relevance and exclusiveness, that leads to different representations according to various danger classes. In this article, the parallel driving model is put forward, and an experiment is developed to test the performance of the drivers. Through the experiments, validity of the model is verified.
Simulation and Topological Optimization of the Lifting Mechanism of a Dump Truck
Authors: Yuan Li Dong , Lin Xian Kun
Published: December 2013

Taking a heavy dump truck as the research object, multi-body analysis and movement simulation are carried out on the lifting mechanism to determine the largest lifting time of the hydraulic cylinder. The stress value of key components and corresponding lifting Angle are acquired, and the calculated results and the actually known parameters and data are compared to verify the rationality of the design of lifting mechanism. Using ABAQUS for the strength check of the triangular arm and using OptiStruct for the topology optimization of the part, the mass and the volume of the new part are reduced more than 1 time. The development of part can improve product quality, shorten development cycle and reduce costs. Key words: Lifting Mechanism, Simulation, Strength Check, Topology Optimization
Finite Element Analysis of Gear Pair of Main Drive Gearbox Based on Workover Treatment
Authors: Jin Jia Qi , Yu Le , Wang Xian Rong
Published: December 2013

Considering the fact that the oil well conditions of LIAOHE oil field, the existing structure of the forced lifting and pushing system of work over rig is improved. Main drive gear pair of the forced lifting and pushing system improved is established to study the intensity of contact and modal in the operating process and the dynamic loads based on finite element method. Main failure forms in the condition of low speed and heavy duty is deduced from the distribution of the stress. Also, the maximum allowable stress and natural frequency is obtained. According to the simulation making use of ANSYS, a 3D contact stress analysis of several teeth and modal analysis in dynamic pre-stress of full teeth is illustrated with the rationality of the design.
Computational Models for Functionally Graded Composites Using the SMA as the Metallic Phase
Authors: Liu Bing Fei , Lan Tian , Heng Pei Zhe , Liu Yu Tao , Liu Xiang Rui
Published: December 2013

Shape Memory Alloy (SMA) composites are being used in an ever-expanding set of applications. For new applications, SMA composites are being developed as metal-ceramic Functionally Graded Materials (FGMs) utilizing SMA as the metallic phase, which contain both high temperature resistance of the ceramic phase and the mechanical properties of SMA composites. Three models including Averaging Technique of Composites (ATC), Mixture Rule (MR) and Mori-Tanaka (MT) scheme are used to calculate the stress distributions of the system subjected to thermal loading, respectively. The results obtained from the analyses of an SMA-ceramic graded composite show that after transformation the stress in the SMA composite is lower than in the case of pure elastic composite under the same thermal loading. This decrease stress can result in an increase in temperature resistance and improved mechanical properties of SMA composites. This work will be explored through a parametric study to understand their influence on SMA composite design.
Application of Three-Parameter Model in Settlement Calculation of Immersed Tube Tunnel
Authors: Wei Gang , Su Qin Wei
Published: December 2013

The settlement of immersed tube tunnel is mainly caused by the compression of basal layer and recompression of the ground foundation layer. Defining the composite foundation as a combination of basal layer ofimmerse tube tunnel and ground foundation layer, a three-parameter model is proposed in this study to simulate the composite foundation in which the basal layer was represented using springs and the ground foundation layer by Kelvin’s model. Based on the solution of beam on elastic foundation, analytical solution for settlement of immersed tube tunnel using the proposed three-parameter model was derived by means of Laplace transformation according to the correspondence principle and the constitutional relationship of the three-parameter model. Initial and final settlement as well as variation of settlement in terms of time were calculated and compared with the actual measured data in combination with actual data measured during tunnelling of Shenjiamen immersed tube tunnel in Zhoushan City. Results showed that the proposed three-parameter model is capable of replacing the basal and ground foundation layers. The calculated value matched favourably with the actual measured value and the variation of settlement in terms of time for immerse tube tunnel can be represented.
High Temperature Compression Deformation Behavior and Rheological Stress Model of HRB400
Authors: Liu Yu Yan , Zang Jia Zhen , Wang Yang , Hu Sheng
Published: December 2013

A series single-pass compression tests of HRB400 slab under the circumstances of different deformation temperature and deformation rate are carried out with Gleeble-1500D thermal simulation testing machine. The experimental results shows as follows. The true stress-true strain curves of the compression process are got from the tests. The state activation energy is 353.542kJ/mol and a mathematical model of high-temperature rheological stress is established. The calculated results by the rheological model are consistent with the experiments.
Comparative Analysis of Static Strength of Traditional and Bionic Semi-Trailer Frame
Authors: Han Qiu Fang , Huang Qi Bai , Li Shan De
Published: December 2013

A three-dimensional entity model of storage grid semi-trailer frame was designed using the Pro/E software. The model was transferred into the ANSYS for static strength analysis. On this basis, bionic structure was introduced into design of semi-trailer frame. The static strength of bionic and traditional structure was contrasted under the same conditions of weight.
Temperature Distribution in the Molding Process of the Stator of PCP
Authors: Li Qing Tao
Published: December 2013

Because of the important influence of temperature on the process of manufacturing rubber products and in the actual production process ,the internal temperature of the product is very difficult to measure, so this paper simulated the PCP`s rubber stator injection molding process using finite element software, and detailed analysis of the temperature distribution in the case of injection molding process and injection molding after the completion of the molding, provides the theory support for the design and production process of stator improvement, to further improve the product quality and production efficiency to provide guarantee.
The Optimization of the Beam of High-Speed Computerized Embroidery Machine
Authors: Zhou Jun Rong
Published: December 2013

The beam of embroidery machine vibrates more intensely and breakage rate goes higher when the spindle rotates at 850rpm and then the quality of product reduces drastically. One high-speed computerized embroidery machine with 20 heads manufactured by a company in Jiangmen was studied for the problem mentioned above. Dynamic performance analysis was conducted to the beam by analytical experiment and computation based on FEM through ANSYS. One improvement solution was proposed and theoretical verification to the optimized beam was processed. It provides a reference for the improvement on embroiderys structure and the development of new model in the future.
Design of the Disc Cam Profile with Negative Radius Translating Roller Follower
Authors: Qu Cheng Long , Chang Yong
Published: December 2013

Abstract: This paper is to study the force-locking and shape-locking conjugate cam mechanisms. problems of the theoretical and actual contour of the cams with negative radius translation roller follower are solved by the use of "definite proportion and division point" method. The results could lead an important foundation for further research of the new type cam mechanisms.
Evaluating Manufacturing Processes with a Novel Approach of Making Fuzzy Judgement
Authors: Shu Ming Hung , Huang Jui Chan , Nguyen Thanh Lam , Hsu Bi Min , Lam Thanh Hien
Published: December 2013

To monitor manufacturing processes with the inevitable fuzzy (imprecise) information, several extensions of the traditional Shewhart-type control charts have been proposed over the past few years. Among them, fuzzy and s charts have been recently developed with certain categorization rules which can discriminate conditions of a manufacturing process into four consequences, including in-control, rather in-control, rather out-of-control and out-of-control. However, weakness of the fuzzy-number evaluation for the classification rules has been found. Thus, in this paper, an improved fuzzy-number ranking approach for the fuzzy charts is proposed to provide more sufficient and justified classification results for monitoring the online manufacturing processes.
Parameters Optimization of Axial Vibration Drilling Based on the Exit Burr
Authors: Wang Hui Lin , Zhang Ping Kuan , Li Qiao Ying
Published: December 2013

Based on analyzing the mechanism of forming exit burr in drilling, the paper researches the process of forming exit burr in low frequency vibration drilling. The calculate formula of exit burr is achieved after calculate the force of axial and other forces in low frequency vibration drilling, which is also proved the reliability by the experiment. The parameters optimization method is available in order to reduce or mitigate the low frequency axial vibration drilling. It is lay a solid foundation for selecting the reasonable parameters of vibrating drilling process in the theory.
Parametric Design of Six Typical Semi-Outdoor Reticulated Domes
Authors: Lu Xiao Yang , Hong Ning , Chen Shi Ying , Chen Ya Ruo
Published: December 2013

According to the rules of six typical spherical reticulated shell nodes, the modeling method and the design macro program is developed for the nodes and the bars of six typical semi-outdoor spherical reticulated shell structures by using the ANSYS parametric design language APDL, so as to achieve the parametric design of six typical semi-outdoor spherical reticulated shells. The modeling design examples indicate that it's convenient to achieve the parametric modeling and design of semi-outdoor shell with given span S, rise high F, number of hoop symmetry areas kn, radial node cycles of whole structure nx and the upper removed laps ns, which provides big convenience for the force analysis and the optimization scheme comparison of semi-outdoor spherical lattice shells with varied types and geometric parameters.
Spiral Roll Forming Machine Design for Metal Rubber
Authors: Jin Xiao Li , Liang Qian Qian , Ma Bao Ji
Published: December 2013

Metal Rubber made by the specific process has excellent mechanical properties. Spiral coil winding is one of the keys in the process of forming Metal Rubber. This paper introduces the forming principle of the metal rubber spiral coil and the control of resilience amount in the forming process. A Spiral roll forming machine is designed for Metal rubber and it can be controlled automatically.
Lightweight Design for Lower Beam of NC Isothermal Hydraulic Press
Authors: Wei Wei
Published: December 2013

In order to satisfy the requirements of light weight and high stiffness for NC isothermal hydraulic press, a method of lightweight design for lower beam is proposed. Key geometric parameters of lower beam affecting mass and stiffness are extracted as design variables. Latin hypercube sampling is used to produce samples of design variables in order to explore relationship between stiffness, mass and design variables. Calculating data are processed with second order stepwise regression and regression equations for stiffness and mass are obtained. Mathematical model for lightweight design is established by regression equations. The goal of lightweight design is to decrease mass of lower beam while stiffness is set as constraint. When lightweight design is finished, the mass of lower beam is decreased by 11% and its stiffness remains unchanged.
Novel Design of Manual Mechanical Rotary Table
Authors: Cheng Xian Chun , Du Qiu Lei , Cheng Zi Xuan
Published: December 2013

Mechanical rotary table [ has been widely used in many work applications, where rotating capacity and power of the table are necessary elements to ensure the operation safety. The paper provides a rotary table design operated by hand movements to lift and fall, rotate and turn over in the absence of electricity and other external powers. Therefore, table should have a simple structure and be easy to maintain, meanwhile working area should be wide enough for convenient operation. Simultaneously good safety performance is of great significant in this design, which requires a reasonable arrangement of each components position to minimize the number of dangerous sections. The rotary part applies commonly used clamping flange, which allows the table to clamp different types of components. Mechanical rotary table can be applied in many different occasions, making it a truly multi-functional workbench.
Microstructure and Properties of 6061 Aluminum Alloy Superficially Modified by Electron Beam Alloying with 1Cr13 Stainless Steel
Authors: Wang Rong , Li Ming Sheng , Wei De Qiang
Published: December 2013

1Cr13 stainless steel was pre-coated on the surface of 6061 aluminum for electron beam alloying, then the microstructure and properties of the modified layer was discussed and analyzed. Using Scanning electron microscopy (SEM), EDAX energy dispersive spectroscopy (EDS), X-ray diffraction (XRD) and other analytical testing methods to analyze the microstructure and phase composition of the modified layer; Using the HX-1000TM automatic turret micro-hardness tester and HSR-2M high-speed reciprocating friction and wear tester to respectively measure its hardness and wear, finally to analyze the modification effect. The results showed that: between the alloyed layer and the substrate obtains a good metallurgical bonding; the modified layer organization composes mainly of martensite and Al-Fe compounds, and has fine grain; the hardness of the strengthening layer is about 4 times that of the substrate, and its wear resistance is a quarter of the matrixs.
Analysis and Application of the Impact Absorption Behavior of the Composite Tube
Authors: Zhang Zi Peng , Zhao Gui Fan , Teng Tso Liang , Wang Yang
Published: December 2013

Composite tube is one new kind of multi-material shell structures. It has both of metal and composite energy absorption advantage. In order to find the energy absorption characteristic of composite tube and put it into use, the Drop-Weight Tear Test (DWTT) was carried out. The LD2Y aluminum was chosen as the inner metal material which was wrapped fiberglass epoxy composite outside. During the test, the displacement signal and velocity signal, acceleration signal were got by piezoelectric acceleration transducer. Furthermore, the DWTT test of the composite tube was simulated in LS-DYNA, and proved the validity of the model by comparing the simulation results with the experiment results. We established the vehicle front longitudinal beam model with the material type of the composite tube, and carried out the simulations of whole car collisions in LS-DYNA according to FMVSS 208. Through the analysis of occupant head injury got from the simulations, we got the result that using the composite tube material could not only elevate the cars safety but also reduce front longitudinal beam weight effectively.