bluuebunny/crossref_metadata_2025 huggingface dataset:
Harmony Strategies for Human-Centered Chance Discovery
Authors: Oehlmann Ruediger
Published: November 2011

Taking the stance that a harmonious situation facilitates improved scenario creation of an expert team involved in chance discovery, a study has been conducted with the objective to identify strategies of increasing interpersonal harmony. A cultural practice that emphasises harmony is the Japanese tea ceremony. Therefore four tea ceremonies with the characteristics of novice/high formality, novice, lower formality, expert/high formality, and expert/lower formality have been recorded and interpretative phenomenological analyses have been conducted. The number of participants ranged from three to ten with an age range from 20 to 60. The results indicate strategies related to time, space and intersubjective positioning. In particular, they showed that intersubjective positioning, i.e., how the participants positioned themselves in their interrelationships to others, in terms of trust, support, competition and conflict, constrains the choice of harmony strategies. Based on the indentified strategies proposals for the management of chance discovery teams are made.
Empirical Studies on the Functional Complexity of Software in Large-Scale Software Systems
Authors: Wang Yingxu , Chiew Vincent
Published: November 2011

Functional complexity is one of the most fundamental properties of software because almost all other software attributes and properties such as functional size, development effort, costs, quality, and project duration are highly dependent on it. The functional complexity of software is a macro-scope problem concerning the semantic properties of software and human cognitive complexity towards a given software system; while the computational complexity is a micro-scope problem concerning algorithmic analyses towards machine throughput and time/space efficiency. This paper presents an empirical study on the functional complexity of software known as cognitive complexity based on large-scale samples using a Software Cognitive Complexity Analysis Tool (SCCAT). Empirical data are obtained with SCCAT on 7,531 programs and five formally specified software systems. The theoretical foundation of software functional complexity is introduced and the metric of software cognitive complexity is formally modeled. The functional complexities of a large-scale software system and the air traffic control systems (ATCS) are rigorously analyzed. A novel approach to represent software functional complexities and their distributions in software systems is developed. The nature of functional complexity of software in software engineering is rigorously explained. The relationship between the symbolic and functional complexities of software is quantitatively analyzed.
EEG Feature Extraction and Pattern Classification Based on Motor Imagery in Brain-Computer Interface
Authors: Zou Ling , Wang Xinguang , Shi Guodong , Ma Zhenghua
Published: November 2011

Accurate classification of EEG left and right hand motor imagery is an important issue in brain-computer interface. Firstly, discrete wavelet transform method was used to decompose the average power of C3 electrode and C4 electrode in left-right hands imagery movement during some periods of time. The reconstructed signal of approximation coefficient A6 on the sixth level was selected to build up a feature signal. Secondly, the performances by Fisher Linear Discriminant Analysis with two different threshold calculation ways and Support Vector Machine methods were compared. The final classification results showed that false classification rate by Support Vector Machine was lower and gained an ideal classification results.
The Formal Design Models of a Universal Array (UA) and its Implementation
Authors: Wang Yingxu , Huang Jason , Lei Jingsheng
Published: November 2011

Arrays are one of the most fundamental and widely applied data structures, which are useful for modeling both logical designs and physical implementations of multi-dimensional data objects sharing the same type of homogeneous elements. However, there is a lack of a formal model of the universal array based on it any array instance can be derived. This paper studies the fundamental properties of Universal Array (UA) and presents a comprehensive design pattern. A denotational mathematics, Real-Time Process Algebra (RTPA), allows both architectural and behavioral models of UA to be rigorously designed and refined in a top-down approach. The conceptual model of UA is rigorously described by tuple- and matrix-based mathematical models. The architectural models of UA are created using RTPA architectural modeling methodologies known as the Unified Data Models (UDMs). The physical model of UA is implemented using linear list that is indexed by an offset pointer of elements. The behavioral models of UA are specified and refined by a set of Unified Process Models (UPMs). As a case study, the formal UA models are implemented in Java. This work has been applied in a number of real-time and nonreal-time systems such as compilers, a file management system, the real-time operating system (RTOS+), and the ADT library for an RTPA-based automatic code generation tool.
A Business Model Approach for Service Engineering in the Internet of Services
Authors: Kett Holger
Published: November 2011

In all major industrialized countries, the service sector is the largest economic segment maintaining the highest growth rate. A current trend in the Internet of Services is to develop and offer software as a service (SaaS). Some research activities, such as Theseus/TEXO focus on the design and development of Web-based service ecosystems based on Web-platforms which allow offering, trading, and executing of services over the Internet. This paper is based on the Integrated Service Engineering (ISE) methodology, an interdisciplinary methodology for developing electronic services. The focus of this work is laid on the development of business models from a strategic-/market-oriented perspective, prior to consider the service business processes and the underlying IT-oriented service concept. The role of the business strategist and its objectives is introduced. The methodology has been developed in the Theseus/TEXO project which is funded by the German Federal Ministry of Economy and Technology.
A Method for the Management of Service Innovation Projects in Mature Organizations
Authors: Schindlholzer Bernhard , Uebernickel Falk , Brenner Walter
Published: November 2011

The ability to design innovative services is an important capability for organizations in the 21st century. Although innovation is the fundamental force to create a sustainable business, many organizations, especially mature organizations, struggle to develop innovative services. This paper offers a method for managing service innovation projects in mature organizations. The method is described using the elements of method engineering. Its relevance is evaluated through an exploratory case study at the intersection of business and IT, focusing on a German financial services provider that sought to develop new IT-based service innovations. Information technology plays a major role as an enabler for a broad range of innovative services, and IT organizations are in a unique position to design services in collaboration with business units to address evolving customer requirements. The key finding of this case study is that while processes, methods, and tools are important for managing service innovation projects, socio-technical aspects such as context, environment, team management, and project setup also are essential for the successful design of innovative services. The current literature provides rudimentary guidance in these areas, yet a thorough description of these factors and their integration into a complete method has not yet been documented.
Mobile Emergency Management Services Targeting Large Public Events
Authors: Zibuschka Jan , Roßnagel Heiko , Muntermann Jan , Scherner Tobias
Published: November 2011

In recent years, natural disasters and terrorist attacks have been quite numerous, and broadly reported in the media. The tourism industry has been especially impacted by these emergencies. In order to mitigate the effects of such events, guaranteeing an adequate level of preparedness is essential. However, despite the extreme disrupting events that large-scale disasters such as tsunamis have had on tourism in specific areas, few tourism organizations have properly developed emergency strategies as an integral part of their business plans. Several national and supra-national initiatives are currently working on possibilities to employ mobile communication networks for emergency management systems. The success of such systems depends on users being familiar with the service though, which is difficult to achieve if the system is solely used for emergency management. Therefore, the authors propose a reference architecture that allows the integration of mobile value-adding services, allowing for broad usage outside of emergency cases and thus an increased familiarity. The authors also present a specific system design focusing on the case of large public events as an instantiation of the reference architecture, describe the implementation in some detail, and present the evaluation of the prototype implementation in a simulation study at a large public event.
INDUSTRY PERSPECTIVE
Authors: Sciortino Giacomo P.
Published: November 2011

The “Distretto Virtuale” portal is an interactive area, featuring several virtual tools, of the Italian Space Agency’s (ASI) website (http://www.asi.it)1. Its community is steadily growing and includes all of the main Italian sector’s stakeholders: business, entrepreneurial associations, research entities, central and local public authorities, financial institutions, investors, consultants, etc. Some tools have been designed to promote membership, as well as “guest” access, abroad. At a macroeconomic level the portal provides, a periodical evaluation of the sector’s trends based on direct business data and a strategic report on the “integrated finance” initiatives, which are the main ASI’s activities supported by the portal. At a microeconomic level, the portal offers its virtual tools to promote the sector’s interactions with ASI and within itself, mainly (but not only) following an “integrated finance” approach: a platform where every commercial registered subject can be located by its size, capacities, and other factors, and where its technological proposals, both as prototypes and new products, can be considered and operationally supported. Special care is given to the promotion of the portal to international users and emerging countries in particular.
Anti-Counterfeit Technologies for Spurious Drugs in India
Authors: Dass Ruchi , Gajjar Bharat
Published: November 2011

The problem of counterfeit drugs in India has led to significant negative publicity around the world. In this paper, the author discusses how mobile/radio based and other technologies are not only helping educate people on how to check counterfeit medicines and supply chain management, but also promoting disease surveillance and spurious drugs data collection.
Risk-Benefit Analysis of Combination Versus Unopposed HRT in Post-Menopausal Women
Authors: Ishaq Geer Mohammad , Hussain Pz Tasaduq , Iqbal Mir Javid , Mushtaq Mohsin Bin
Published: November 2011

Many trials on the use of hormone replacement therapy (HRT) have provided contradictory results on its risks and benefits in post-menopausal women. The use of HRT declined globally following publication of the first data from the Women’s Health Initiative (WHI) trial in 2002, with the revelation that there was an increased risk of breast cancer and coronary heart disease (CHD) in postmenopausal women taking HRT. Following this, other leading studies published results that were consistent with these findings, which reduced enthusiasm for HRT use. However, recent publications from the International Menopause Society indicate that HRT is the first-line and most effective treatment for menopausal symptoms. Moreover, when the full results of the WHI trial were subsequently published, it appeared that HRT may confer benefits for CHD prevention below age 60. The statements from the British Menopause Society and the International Menopause Society (IMS) published in 2008 also supported this opinion. These revelations renew interest in HRT use. This paper analyzes the effects of combination versus unopposed HRT on osteoporosis, breast and CHD, endometrial cancer induction, venous thromboembolic disease, lipids and lipoproteins, neuroprotection, and cognitive function in post-menopausal women.
Enjoy.IT!
Authors: Navarro-Salvador M. Amparo , Sánchez-Calzón Ana Belén , Fernández-Llatas Carlos , Meneu Teresa
Published: November 2011

The evolution of the Internet has been spectacular in recent decades. However, the Internet is still a linear scenario, focused on showing contents and dissociated from the physical world. On the other hand, there are many social groups that don’t know how to use the opportunities that ICT can offer them, such as children. In this scenario, Project Enjoy.IT! designs, develops, and validates an entertainment platform with advanced contents that will set up a practical realization of the new products and services from the Future Internet. Project Enjoy.IT! integrates the physical world as an extension of the virtual world and vice versa. Thus, the project creates an AmI system that is able to act depending on the children’s knowledge and necessities. The platform is based on a Services Choreography that allows an easy, simple integration of the necessary elements to give support to interactive entertainment activities.
Recursive Learning of Genetic Algorithms with Task Decomposition and Varied Rule Set
Authors: Fang Lei , Guan Sheng-Uei , Zhang Haofan
Published: November 2011

Rule-based Genetic Algorithms (GAs) have been used in the application of pattern classification (Corcoran & Sen, 1994), but conventional GAs have weaknesses. First, the time spent on learning is long. Moreover, the classification accuracy achieved by a GA is not satisfactory. These drawbacks are due to existing undesirable features embedded in conventional GAs. The number of rules within the chromosome of a GA classifier is usually set and fixed before training and is not problem-dependent. Secondly, conventional approaches train the data in batch without considering whether decomposition solves the problem. Thirdly, when facing large-scale real-world problems, GAs cannot utilise resources efficiently, leading to premature convergence. Based on these observations, this paper develops a novel algorithmic framework that features automatic domain and task decomposition and problem-dependent chromosome length (rule number) selection to resolve these undesirable features. The proposed Recursive Learning of Genetic Algorithm with Task Decomposition and Varied Rule Set (RLGA) method is recursive and trains and evolves a team of learners using the concept of local fitness to decompose the original problem into sub-problems. RLGA performs better than GAs and other related solutions regarding training duration and generalization accuracy according to the experimental results.
Usage Profile Generation from Web Usage Data Using Hybrid Biclustering Algorithm
Authors: Rathipriya R. , Thangavel K. , Bagyamani J.
Published: November 2011

Biclustering has the potential to make significant contributions in the fields of information retrieval, web mining, and so forth. In this paper, the authors analyze the complex association between users and pages of a web site by using a biclustering algorithm. This method automatically identifies the groups of users that show similar browsing patterns under a specific subset of the pages. In this paper, mutation operator from Genetic Algorithms is incorporated into the Binary Particle Swarm Optimization (BPSO) for biclustering of web usage data. This hybridization can increase the diversity of the population and help the particles effectively escape from the local optimum. It detects optimized user profile group according to coherent browsing behavior. Experiments are performed on a benchmark clickstream dataset to test the effectiveness of the proposed algorithm. The results show that the proposed algorithm has higher performance than existing PSO methods. The interpretation of this biclustering results are useful for marketing and sales strategies.
IT-Based Classification for Supply Chain Coordination Mechanisms
Authors: Ghahremani Fereshteh , Tarokh Mohammad Jafar
Published: November 2011

Managing dependencies via coordination is an effective solution for the problems that arise from these interdependencies in supply chains. This can be practical via a set of methods called coordination mechanisms. Numerous coordination mechanisms have been discussed before in literature. This paper develops a new classification of these mechanisms on the basis of information technology (IT) impact on them. This classification proves the important role of IT in better coordinating supply chains and help managers distinguish between coordination mechanisms that are created and improved by information technology and thus lead them to have the best choice based on their infrastructures and organization type.
New Strategies and Extensions in Kruskal’s Algorithm in Multicast Routing
Authors: Aissa Mohamed , Ben Mnaouer Adel , Murray Rion , Belghith Abdelfettah
Published: November 2011

Multimedia applications are expected to guarantee end-to-end quality of service (QoS) and are characterized by stringent constraints on delay, delay-jitter, bandwidth, cost, and so forth. The authors observe that Kruskal’s algorithm is limited to minimal (maximal) spanning unconstrained tree. As such, the authors extend Kruskal’s algorithm to incorporate the delay bound constraint. Consequently, a novel algorithm is proposed, called EKRUS (Extended Kruskal), for constructing multicast trees. The EKRUS’ distinguishing features consists of a better management of Kruskal’s priority queues, and in the provision of edge priority aggregation. Preliminary results show that the proposed EKRUS algorithm performs as well as the best-known algorithms (such as the DDMC, DMCTc algorithms) while exhibiting reduced complexity. The authors conducted an intensive analysis and evaluations of different strategies of assigning edges into the classes of the queue as well as edge selection. As a result, the EKRUS algorithm was further extended with different edge assignment and selection strategies. Through extensive simulations, the authors have evaluated various versions of the EKRUS and analyzed their performance under different load conditions.
DocBase
Authors: Sengupta Arijit , Venkataraman Ramesh
Published: November 2011

This article introduces a complete storage and retrieval architecture for a database environment for XML documents. DocBase, a prototype system based on this architecture, uses a flexible storage and indexing technique to allow highly expressive queries without the necessity of mapping documents to other database formats. DocBase is an integration of several techniques that include (i) a formal model called Heterogeneous Nested Relations (HNR), (ii) a conceptual model XER (Extensible Entity Relationship), (ii) formal query languages (Document Algebra and Calculus), (iii) a practical query language (Document SQL or DSQL), (iv) a visual query formulation method with QBT (Query By Templates), and (v) the DocBase query processing architecture. This paper focuses on the overall architecture of DocBase including implementation details, describes the details of the query-processing framework, and presents results from various performance tests. The paper summarizes experimental and usability analyses to demonstrate its feasibility as a general architecture for native as well as embedded document manipulation methods.
Preventing Social Engineering and Espionage in Collaborative Knowledge Management Systems (KMSs)
Authors: Ogunseye Oluwafemi S. , Folorunso Olusegun , Zhang Jeff
Published: November 2011

Insider attack and espionage on computer-based information is a major problem for business organizations and governments. Knowledge Management Systems (KMSs) are not exempt from this threat. Prior research presented the Congenial Access Control Model (CAC), a relationship-based access control model, as a better access control method for KMS because it reduces the adverse effect of stringent security measures on the usability of KMSs. However, the CAC model, like other models, e.g., Role Based Access Control (RBAC), Time-Based Access Control (TBAC), and History Based Access Control (HBAC), does not provide adequate protection against privilege abuse by authorized users that can lead to industrial espionage. In this paper, the authors provide an Espionage Prevention Model (EP) that uses Semantic web-based annotations on knowledge assets to store relevant information and compares it to the Friend-Of-A-Friend (FOAF) data of the potential recipient of the resource. It can serve as an additional layer to previous access control models, preferably the Congenial Access Control (CAC) model.
Evaluating Local Partnership Incentive Policies
Authors: Sorrentino Maddalena , Spano Alessandro , Bellò Benedetta
Published: November 2011

Current research tells little about how to assess the public incentive policies designed to persuade local governments to set up partnerships. This first paper of ongoing research illustrates an evaluation method based on the ‘realist approach’, the tenets of which assign a key role to the context in which the mechanisms of a public programme work (or not). The evaluation framework is intended to be a tool to assist and inform future policymaking and practice. The paper provides a picture of the current scientific debate by exploring the relevant literature; outlines a research path aimed at building an empirically-based model for assessing public policies to promote and support local partnerships in the Italian Region of Sardinia; and indicates a possible context of use for the theory through an illustrative example.
Reflecting on E-Government Research
Authors: Rana Nripendra P. , Williams Michael D. , Dwivedi Yogesh   K. , Williams Janet
Published: November 2011

After more than a decade of research in the field of e-government, it is now timely and appropriate to reflect upon the overall developmental directions in the area. This paper explores research progress to date by systematically analyzing the existing body of knowledge on e-government related issues, and reveal if there is lack of theoretical development and rigor in the area. Usable data relating to e-government research currently available were collected from 779 research articles identified from the ISI Web of Knowledge database, and by manually identifying relevant articles from dedicated journals on electronic government such as Transforming Government: People, Process, and Policy (TGPPP), Electronic Government, an International Journal (EGIJ), and International Journal of Electronic Government Research (IJEGR). Based on the investigation of the various studies, findings reveal that generic e-government applications were explored more than any specific applications, and the technology acceptance model (TAM) was the most utilized theory to explain research models. Although a large number of theories and theoretical constructs were borrowed from the reference disciplines, their utilization by e-government researchers appears largely random in approach. The paper also presents limitations and further research directions for future researchers.
Relations Between Videogame Play and 8th-Graders’ Mathematics Achievement
Authors: Tobias Scott , Rudy Duane , Ispa Jean
Published: November 2011

This study explores whether any relationships exist between math performance scores on the Missouri Assessment Plan (MAP), its subscales and time spent playing the child’s favorite videogame given the game’s spatial content and cognitive complexity. Relationships between gender and math scores were also examined. Findings indicate no main effect of time spent playing, spatial content, or level of complexity of games on math performance. However, several math scores interacted with time spent playing one’s favorite video game, such that higher levels of math performance occurred when participants played games high in spatial content at low amounts of time. A similar interaction occurred when examining complexity of the game and time spent playing. The study provides preliminary evidence that it may be important to consider the spatial or complexity content of videogames in addition to time spent playing when addressing the relationship between videogame play and adolescent math performance.
Success Factors and Motivators in SPI
Authors: Munk-Madsen Andreas , Nielsen Peter Axel
Published: November 2011

The authors report in this article from a survey of medium-sized and large software companies in Denmark where major variations were found in the practice of software process improvement (SPI). Many software companies intend to do SPI; but few companies invest the necessary effort in improvement, and few perform maturity assessments. In general, across the surveyed companies, the effects of SPI are very limited. The study also found that internal motivators are more frequent than external motivators. This article presents and discusses the survey and the results. It also discusses implications for IT organizations and professionals and recommends: (1) assessing the maturity level; (2) allocating sufficient resources to SPI; and (3) creating a positive feedback loop between SPI benefits and SPI efforts.
Automatic Detection of Arrow Annotation Overlays in Biomedical Images
Authors: Cheng Beibei , Stanley R. Joe , De Soumya , Antani Sameer , Thoma George R.
Published: November 2011

Images in biomedical articles are often referenced for clinical decision support, educational purposes, and medical research. Authors-marked annotations such as text labels and symbols overlaid on these images are used to highlight regions of interest which are then referenced in the caption text or figure citations in the articles. Detecting and recognizing such symbols is valuable for improving biomedical information retrieval. In this research, image processing and computational intelligence methods are integrated for object segmentation and discrimination and applied to the problem of detecting arrows on these images. Evolving Artificial Neural Networks (EANNs) and Evolving Artificial Neural Network Ensembles (EANNEs) computational intelligence-based algorithms are developed to recognize overlays, specifically arrows, in medical images. For these discrimination techniques, EANNs use particle swarm optimization and genetic algorithm for artificial neural network (ANN) training, and EANNEs utilize the number of ANNs generated in an ensemble and negative correlation learning for neural network training based on averaging and Linear Vector Quantization (LVQ) winner-take-all approaches. Experiments performed on medical images from the imageCLEFmed’08 data set, yielded area under the receiver operating characteristic curve and precision/recall results as high as 0.988 and 0.928/0.973, respectively, using the EANNEs method with the winner-take-all approach.
A Dynamically Optimized Fluctuation Smoothing Rule for Scheduling Jobs in a Wafer Fabrication Factory
Authors: Chen Toly
Published: November 2011

This paper presents a dynamically optimized fluctuation smoothing rule to improve the performance of scheduling jobs in a wafer fabrication factory. The rule has been modified from the four-factor bi-criteria nonlinear fluctuation smoothing (4f-biNFS) rule, by dynamically adjusting factors. Some properties of the dynamically optimized fluctuation smoothing rule were also discussed theoretically. In addition, production simulation was also applied to generate some test data for evaluating the effectiveness of the proposed methodology. According to the experimental results, the proposed methodology was better than some existing approaches to reduce the average cycle time and cycle time standard deviation. The results also showed that it was possible to improve the performance of one without sacrificing the other performance metrics.
A Distributed Scenario-Based Decision Support System for Robust Decision-Making in Complex Situations
Authors: Comes Tina , Wijngaards Niek , Hiete Michael , Conrado Claudine , Schultmann Frank
Published: November 2011

Decision-making in emergency management is a challenging task as the consequences of decisions are considerable, the threatened systems are complex and information is often uncertain. This paper presents a distributed system facilitating better-informed decision-making in strategic emergency management. The construction of scenarios provides a rationale for collecting, organising, and processing information. The set of scenarios captures the uncertainty of the situation and its developments. The relevance of scenarios is ensured by gearing the scenario construction to assessing alternatives, thus avoiding time-consuming processing of irrelevant information. The scenarios are constructed in a distributed setting allowing for a flexible adaptation of reasoning (principles and processes) to both the problem at hand and the information available. This approach ensures that each decision can be founded on a coherent set of scenarios. The theoretical framework is demonstrated in a distributed decision support system by orchestrating experts into workflows tailored to each specific decision.
Social Responsibility
Authors: Mulej Matjaz , Potocan Vojko , Zenko Zdenka , Hrast Anita , Strukelj Tjasa
Published: November 2011

Both the economic practice and education in the decades after the 2nd world war continued the previous trend toward over-specialization resulting from the huge amounts of knowledge piled up. But both the global impact and the local action require linking of specialists in interdisciplinary creative cooperation for their work processes to succeed. ‘Division of work’ was much more stressed than ‘coordination’ and ‘cooperation’ and still is so. Oversights result with consequences reaching all way to global crises, including world wars. Systems and cybernetic theories have offered remedies in some of their many versions, including the knowledge systems science, but with a poor acceptance on the part of over-specialists and bosses. In the recent decade a new remedy has been offered under the label of social responsibility. Data from USA, Germany, etc., show that customers are increasingly embracing it. This makes this invention start becoming a crucial non-technological innovation, which shall enter the economic practice and education quickly. It shall not tackle organizations only, but become a human attribute of all influential persons and their organizations from family to the entire world.
Governance of Cross-Organizational Healthcare Document Exchange through Watermarking Services and Alerts
Authors: Chiu Dickson K.W. , Wang Yuexuan , Hung Patrick , Cheng Vivying S.Y. , Chan Kai-Kin , Kafeza Eleanna , Tung
Published: November 2011

There is an increasing demand for sharing documents for process integration among organizations. Web services technology has recently been widely proposed and gradually adopted as a platform for supporting such an integration. There are no holistic solutions thus far that are able to tackle the various protection issues, specifically regarding the security and privacy protection requirements in cross-organizational progress integration. This paper proposes the exchange of documents through a Document / Image Exchange Platform (DIEP), replacing traditional ad-hoc and manual exchange practices. The authors show how the contemporary technologies of Web services under a Service-Oriented Architecture (SOA), together with watermarking, can help protect document exchanges with layered implementation architecture. Furthermore, to facilitate governance and regulation compliance against protection policy violation attempts, the management and the affected parties are notified with alerts for warning and possible handling. The authors discuss the applicability of the proposed platform with a physician towards security and privacy protection requirements based on the Health Insurance Portability and Accountability Act (HIPAA) in the United States, which imposes national regulations to protect individuals’ healthcare information. The proposed approach aims at facilitating the whole governance process from technical to management level with a single unified platform.
Unfolding the Diminishing Image Control in Online Self Presentation
Authors: Lin Chien-nai , Lin Yu-Tzu , Hsieh Ching-Cha
Published: November 2011

As the young generations grow up using applications like Facebook and as fans of social networking technologies, understanding the presentations of self in a virtual community becomes a worthwhile topic to be addressed. Drawing on the theory of dramaturgical theory (Goffman, 1959), this interpretive research was conducted to observe the self presentation of the participants in a virtual community to analyze their online behaviors and interactions. The observations found that only in the early stage of interaction, people can have a high degree of control over the ideal images creation; however, the clues to reveal actual images are accumulated over time and across cyberspaces. This research suggested that personal control over image delivery in a virtual community weakens over time, which challenged the assumption made by prior literature regarding how people have greater control in creating ideal images in the virtual community. The findings of this research could provide insight for people who use virtual community to search for credible personal information or to build ideal images. Besides, this research suggested that although Internet technologies facilitate access to a rich source of information, the convenience in information acquisition and verification comes at the expense of personal privacy.
Chemical Modification of β-Cyclodextrin-g-Chitosan and its Adsorption on Pb2+
Authors: Lai Shui Li , Chai Qiang , Han Wu Jun , Wang Bin
Published: November 2011

The synthesis of a novel chitosan (CTS) derivative bearing β-cyclodextrin (β-CD) was studied, which was divided into two steps. The first step was the preparation of carboxymethyl-β-CD, then it was acyl chlorided. The second step was that β-CD was grafted onto the CTS skeleton by the reaction of acidamide. Its adsorption property on Pb2+ was investigated. The factors that influence on the effect were discussed, including adsorption time, pH value, and temperature. The results show that its adsorption content is superior to that of the unmodified CTS. And the adsorption content (Qmax) is 246 mg.g-1 when the temperature is 35°C, pH is between 3.0~4.0 and adsorption time is 6 h.
Enhancement Effect of CTAB in Dye Wastewater Treatment by Bentonite
Authors: Qi Jing , Ma Jian Feng , Li Ding Long , Dai Juan
Published: November 2011

. The adsorption capacity of Orange II by Cetyltrimethyl Ammonium Bromide (CTAB)+bentonite mixture system and bentonite were tested and compared. The influence factors on removal rate of Orange II such as surfactant, the pH, the contact time and temperature were studied. The results showed that the presence of cationic surfactant such as CTAB could greatly enhance the removal efficiency compared with the system only bentonite supplied. The results showed that the highest removal rate of Orange II appeared on pH＜3, and when the pH value was from 3 to 5, the removal rate would drop 30%-50%.The effect of reaction temperature on the Orange II removal was then discussed, showed that the removal rate of Orange II descended 5%-10% when the temperature was higher than 25°C.
Non-Linear Dynamics of a Flexible Multi-Rotor Bearing System with a Fault of Parallel Misalignment
Authors: Li Zi Gang , Li Ming
Published: November 2011

The dynamic behaviors of a flexible multi-rotor system with a fault of parallel misalignment are investigated on the basis of assumptions, such as the long journal bearings, small rotor misalignment and mass disk unbalance. Firstly, based on the Lagrange equations with undetermined multiplier, the dynamic model of a rotor system under the action of the nonlinear oil film forces is developed after taking into account the holonomic constraint, which describes the misalignment relation between two rotors, and the theoretical analysis reveals that the system with eleven DOF is of strong nonlinear properties. Then the nonlinear dynamic characteristics on numerical technique, such as steady state response, rotor orbit, Poincaré section and the largest Lyapunov exponent, are paid more attention in this study. The results show that at low speed the components of the steady-state responses in lateral direction is of the synchronous frequency with rotating speed as well as its integer multiples frequencies. As the speed increases the dynamic characteristics become complicated, and the nT-period, quasi-period and chaotic oscillations occur.
Theoretical Study on the Antioxidant Activity of Alkannin and its Derivatives
Authors: Jin Rui Fa
Published: November 2011

The structural and electronic properties of alkannin and its derivatives and their radicals were investigated at density functional level. It turned out that the presence of the dihydroxy functionality increases the radical stability through hydrogen bond formation and favors hydrogen atom abstraction. The introduction of electron-donating groups for the molecules increases the activities of antioxidants. Moreover, alkannin and its derivatives appear to be good candidates for the one-electron-transfer mechanism. Their extended electronic delocalization between adjacent rings determines low ionization potential (IP) values, and it can be further improved by the introduction of the electron-donating groups for the molecules.
Effect of Etching Temperature on the Growth of Silicon Nanowires
Authors: Liu Yan Li , Zhang Jian
Published: November 2011

The effects of different etching temperatures (near room temperature) on the length and surface morphology of SiNWs were reported in this paper. The studies on temperature dependence of SiNWs growth rate were carried out at 20 °C, 30 °C, 40 °C, 50 °C, 60 °C, and 70 °C for n-type and p-type substrates. The results suggested that the SiNWs length could be controlled easily by the change of the etching temperature. Superlong SiNWs were also fabricated by this technique. The superlong SiNWs had the length more than 400 μm and the aspect ratios were about 2000-20000, which could be applied in nanosensors and interconnection.
Preparation of Dextran Modified Superparamagnetic Iron Oxide Nanoparticles Based Immunoprobes
Authors: Niu Wan Ting , Zhang Lu Yao , Pan Min , Chen Yu Quan
Published: November 2011

Superparamagnetic iron oxide (SPIO) nanoparticles were used more and more universally in biomedical research recently. In order to develop a suitable immuno-magnetic probe which can be applied in antigen-antibody based immunoassay, such as tumor marker or cardiovascular marker detection, SPIO capped by dextran was synthesized with chemical coprecipitation method. With sodium periodate method, hydroxyl groups of dextran were oxidated to aldehyde groups, thus conjugated with antibodies by covalent bonds. Western blot pattern illustrated that structure integrity of the most antibodies was kept well, harmful influence given by oxidation of conjugation was very finite. Both immune reactivity and antigenicity of antibodies in the SPIO based immunoprobes were retained effectively. This probe has a potentially application in SPIO based novel suspension array for its superparamagnetic property that can be separated under gradient magnetic field.
Comparative Study of Droplet-Nuclei with Pathogen and CO2 Distribution in Infectious Isolation Room
Authors: Ji Yun Zhe , Wang Xiao Jie , Wang Yun Ping
Published: November 2011

In this article, the distributions of droplet nuclei with pathogens which was evaporated from the droplets released by cough was and trace gas CO2 were compared to study the airborne characteristics of droplet nuclei. The infectious isolation room model with steady particle source model was built. The particle source was built according to the size distribution of the droplet nuclei with pathogens which was evaporated from the droplets released by cough. The CO2 source was build at the same location with the particle source and released in the same way. The simulation result showed that the distributions of droplet nuclei and CO2 which were simulated by CFD were similar under the same ward airflow. This proved that these droplet nuclei could suspend in air and move with airflow. it was feasible to use tracer gas CO2 as trace gas to solve the validating the numerical simulation of droplet nuclei distribution in infectious isolation room.
Heart Sound Clustering Based on Supervised Kohonen Network
Authors: Yang Xing Hai , Fu Wen Jie , Wang Yu Tai , Ding Jia , Wei Chang Zhi
Published: November 2011

In this paper, a new method based on Supervised Kohonen network (SKN) and Mel-frequency cepstrum coefficients (MFCC) is introduced. MFCC of heart sound signal are extracted firstly, and then features are got by calculating every order of MFCC average energy. Finally, SKN is used to identify heart sound. The experimental result shows that this algorithm has a good performance in heart sound clustering, and is of significant practical value.
Optimization on Extraction Technique of Soluble Soybean Polysaccharide
Authors: Li Hong Rui , Yuan Li Bing , Xv Ming Sheng , Zhang Wen Bo
Published: November 2011

To investigate the extraction technique of soluble soybean polysaccharide by ultrasonic assistance, four relative factors, including water extraction temperature, ultrasonic treatment time, ultrasonic power and solid to liquid ratio, were optimized through orthogonal test L9 (34 ) on the basis of single factor experiment. The factors influencing the extraction rate of soluble soybean polysaccharide, in the sequence of significance, were ultrasonic treatment time, water extraction time, water extraction temperature and sold to liquid ratio. The optimum extraction technological parameter of soluble soybean polysaccharide was: ultrasonic wave period 20 min, water extraction temperature 90 °C, sold to liquid ratio 1:40, water extraction period 4 h, and the extracting rate was 3.5421% of bean dregs. The method of phenol-sulphate acid was applied to determine the content of polysaccharide. The content of polysaccharide was 96.58％ of extracted soybean polysaccharide sample.
Biomedical Imaging and Visualization Model of Mitochondrial Dysfunction and Oxidative Stress in Alzheimer Disease
Authors: Lin Chang Jun , Huang Han Chang , Liu Wen Juan , Jiang Zhao Feng
Published: November 2011

Mitochondrial dysfunction and oxidative stress are among the earliest events linked to Alzheimer Disease and might play a causative role in disease onset and progression. In this paper, a biomedical imaging and visualization model was set to investigate the mitochondrial dysfunction and oxidative stress in Aβ/Cu2+-treated cells, which contribute in a significant manner to bioenergetic failure and mitochondrial dysfunction, by measuring mitochondrial membrane potential, Ca2+, chromatin condensation and ROS. This evaluating method opens a window for analyzing the protective effect of a certain substance in improving mitochondrial function and preventing oxidative stress in AD development.
Implicit Generalized Predictive Control of Hip-Joint Rehabilitation Training Device Driven by Pneumatic Muscle Actuator
Authors: Li Xiao , He Fan , Hong Xia , Guan Ting
Published: November 2011

To solve the problem of the time-delay, nonlinear and time-variable characteristics of hip-joint rehabilitation training device driven by pneumatic muscle actuator, an implicit generalized predictive controller was designed based on parameter model in this paper. It was applied to the isokinetic continuous passive motion control of the hip-joint rehabilitation training device. Experimental results proved that the controller has the property of high control accuracy, anti-disturbance capability and excellent adaptive abilities for the changes of system model parameters, compared with PID controller. This control method provides the beneficial reference for improving the control performance of such system.
Design and Experimental Research of Urethra Valve of Bladder Power Pump
Authors: Liu Chun Bao , Li Xiao , Guan Ting
Published: November 2011

To optimize the structure of bladder power pump, a new urethra valve was designed. Based on the theories of electromagnetics and hydromechanics, the mathematic model of urethra valve was built, and the effects on the performance of urethra valve were analyzed, taking into account different influence factors such as electromagnet current, air gap and so on. The validity of the model was confirmed through the comparison between simulation and experiment. On the simulated test bed, the effects of urethra valve on the micturition performance of bladder power pump were studied. The results show that increasing the electromagnet current and decreasing the air gap between electromagnet and urethra valve are beneficial to increase the maximal urine flow rate and decrease the urine flow time. The research provides the basis for the performance analysis and optimal structure design of bladder power pump.
Structure Study of Arch Bridge with a Span of 600m Part II: Measures to Improve Mechanical Performance
Authors: Xie Ya Zhou
Published: November 2011

Take the trail design of arch bridge with a span of 600m in Part I as the research object, this paper proposes the existing critical problems of the structure, including structure’s static performance, stable problem and dynamic problem. Measures to improve structure’s mechanical performance have been proposed in the respects of structure system, component system and design parameters so as to improve the economy and safety of the structure.
Temperature Field of Multi-Wells Aquifer Thermal Energy Storage in Sanhejian Coal Mine
Authors: Zhang Yi , Guo Dong Ming
Published: November 2011

When production needs, the technology of aquifer thermal energy storage (ATES) can achieve cooling or heating by running the “underground cold water reservoir” or the “underground heat water reservoir”. In this paper, taking Sanhejian Coal Mine as an example, we discuss that with the same pumping and irrigation flow in multi-wells, distribution and change of temperature field in aquifers when energy storage system runs. The simulation results of aquifer temperature field show that any cold water well running can make temperature around the centerlin rise, and the rate rose from 0.4 °C to 6 °C as time increases. Any cold water well running can make the lowest temperature of other cold water wells around it rise 0.4°C or 0.5°C, the temperature of the aquifer whose temperature is below 15°C rises about 1°C or 2°C. It proves that the distance of wells is reasonable. When the whole system runs, the temperature field of 2°C to 10°C change greatly, the temperature field of 10°C to 15°C is stable, which is less affected by heat energy consumption in cold water well.