bluuebunny/crossref_metadata_2025 huggingface dataset:
STERILIZATION PERFORMANCE OF AUTOCLAVE UNITS ON CANNULAR MATERIALS
Authors: Sezdi Mana , Yoleri Gamze
Published: December 2013

Autoclaves are devices that are used for sterilization of medical devices under high pressure and temperatures. As with all medical devices, the correct operation of autoclave units is vital for their performance and for successful sterilization. Thus, they should be tested to investigate their technical performance and biological effects within the studies of hospital quality control. Starting from setting the temperature and the pressure parameters up to taking out the materials from the autoclave after sterilization, all steps of the process need to be revised at these control stages. In this study, biological effects of sterilization were tested on microorganisms placed in cannular materials by using different temperatures and sterilization durations. As for the sterilization unit, a vertical type autoclave was used. The technical parameters of the autoclave during the sterilization process were measured by using a temperature–pressure data logger device. Bacillus subtilis var. niger strain was used to examine the biological performance of the sterilization unit. We performed different experiments by changing the temperature and the duration of the sterilization, and using several sizes of cannular materials. Experiments were made at 100°C, 95°C, 90°C, 85°C, 80°C, 75°C, 70°C and for 1 and 5 min. Additionally, two different cannula type sterile glass pipettes (1 and 10 ml) were used in experiments to compare the status of sterilization for different volumetric materials. Biological and technical results obtained for both test and control parameters were compared. The percent of bacteria reduction (Bacteria reduction% = (Test Number/Control Number) × 100) was calculated for biological tests. Technical tests resulted that the autoclave was not able to provide a stable output for temperatures from 70°C to 100°C, and for durations of 1 and 5 min. However, biological tests showed that the sterilization was achieved for the strain at all test conditions. It was observed that the autoclave provided technical requirements for sterilization even for short sterilization durations and low temperature, as such no microbial growth was observed. In short, the bacteria reduction percent was 100%. It was explained that the reason for biological sterilization at these low parameters is because the autoclave generated higher pressure and higher temperature than the set pressure and temperature values. Consequently, the results of the biological tests were supported by measuring the technical parameters of the autoclave.
Surveilling the Elderly
Authors: Basham Randy
Published: December 2013

This chapter describes the usefulness of RFID (Radio Frequency Identification Device) implant technology to monitor the elderly, who are aging in place in various retirement arrangements, and who need to maintain optimal functioning in the absence of available, and on location, service or care providers. The need to maintain functioning or sustainable aging is imperative for countries experiencing rapid growth as a demographic trend for the elderly. The chapter also raises some concerns including the social acceptance or rejection of RFID implant technology, despite the utility of the device. These concerns include a variety of political, social, and religious issues. Further, the chapter also attempts to show how RFID implant technology could be used in combination with other emerging technologies to maintain physical, emotional, and social functioning among the growing population of elderly. What follows is the introduction and a partial literature review on emergent elderly needs, and on the utilization of RFID and other technologies.
Towards the Blanket Coverage DNA Profiling and Sampling of Citizens in England, Wales, and Northern Ireland
Authors: Michael Katina
Published: December 2013

The European Court of Human Rights (ECtHR) ruling of S and Marper v United Kingdom will have major implications on the retention of Deoxyribonucleic Acid (DNA) samples, profiles, and fingerprints of innocents stored in England, Wales, and Northern Ireland. In its attempt to develop a comprehensive National DNA Database (NDNAD) for the fight against crime, the UK Government has come under fire for its blanket-style coverage of the DNA sampling of its populace. Figures indicate that the UK Government retains a highly disproportionate number of samples when compared to other nation states in the Council of Europe (CoE), and indeed anywhere else in the world. In addition, the UK Government also retains a disproportionate number of DNA profiles and samples of specific ethnic minority groups such as the Black Ethnic Minority group (BEM). Finally, the S and Marper case demonstrates that innocent children, and in general innocent citizens, are still on the national DNA database, sometimes even without their knowledge. Despite the fact that the S and Marper case concluded with the removal of the biometric data of Mr S and Mr Marper, all other innocent subjects must still apply to their local Metropolitan Police Service to have their fingerprints or DNA removed from the register. This is not only a time-consuming process, but not feasible.
ID Scanners and Überveillance in the Night-Time Economy
Authors: Palmer Darren , Warren Ian , Miller Peter
Published: December 2013

ID scanners are promoted as an effective solution to the problems of anti-social behavior and violence in many urban nighttime economies. However, the acceptance of this and other forms of computerized surveillance to prevent crime and anti-social behavior is based on several unproven assumptions. After outlining what ID scanners are and how they are becoming a normalized precondition of entry into one Australian nighttime economy, this chapter demonstrates how technology is commonly viewed as the key to preventing crime despite recognition of various problems associated with its adoption. The implications of technological determinism amongst policy makers, police, and crime prevention theories are then critically assessed in light of several issues that key informants talking about the value of ID scanners fail to mention when applauding their success. Notably, the broad, ill-defined, and confused notion of “privacy” is analyzed as a questionable legal remedy for the growing problems of überveillance.
Networked Knowledge Communities in the 21st Century Classroom Practices
Authors: Wharrad Heather , Chambers Derek , Evans Catrin , Goode Jackie
Published: December 2013

This chapter explores the emergence and current status of Networked Knowledge Communities (NKCs) in Higher Education in the United Kingdom and, specifically, in the field of nurse and healthcare education. In particular, the chapter focuses on how new technologies can enhance learning and provide opportunities to create online communities at a global level, thereby contributing to the internationalization of curricula and the development of cross-cultural awareness within these communities. The chapter provides a brief overview of what we understand as “internationalization” and “cultural awareness” followed by a critical review of the recent literature debating the pedagogical possibilities and implications of using digital technologies to develop NKCs. The chapter concludes with an evaluation of the evidence for the existence of “primitive” NKCs within the curriculum at this point in time and expectations for their emergence in the future, along with recommendations and suggestions for future research.
Writing with Pixels
Authors: Daniels Christie L.
Published: December 2013

As a result of the features available on social media, users are able to present an up-to-the-minute picture of who they believe they are, what they are all about, and what gets their attention to the world in a remarkably savvy way. These sites enable students to practice concepts such as agency, situatedness, and constraints as well as gain experience with visual rhetoric itself. This chapter argues that the ability of instructors to tap this voluntary rhetorical activity and channel it into academic endeavors is of critical importance to creating new pedagogies to teach a new generation of rhetorically aware citizens.
Re-Evaluation of Nepali Media, Social Networking Spaces, and Democratic Practices in Media
Authors: Edingo Dilli Bikram
Published: December 2013

This chapter first analyzes the Nepali mainstream media and social media’s effect upon its relationships with audiences or news-receivers. Then, it explores how social media is a virtual space for creating democratic forums in order to generate news, share among Networked Knowledge Communities (NKCs), and disseminate across the globe. It further examines how social media can embody a collective voice of indigenous and marginalized people, how it can better democratize mainstream media, and how it works as an alternative media. As a result of the impact of the Internet upon the Nepali society and the Nepali mainstream media, the traditional class stratifications in Nepal have been changed, and the previously marginalized and disadvantaged indigenous peoples have also begun to be empowered in the new ways brought about by digital technology. Social networking spaces engage the common people—those who are not in power, marginalized and disadvantaged, dominated, and excluded from opportunities, mainstream media, and state mechanisms—democratically in emic interactions in order to produce first-hand news about themselves from their own perspectives. Moreover, Nepali journalists frequently visit social media as a reliable source of information. The majority of common people in Nepal use social networking sites as a forum to express their collective voice and also as a tool or medium to correct any misrepresentation in the mainstream media. Social media and the Nepali mainstream media converge on the greater issues of national interest, whereas the marginalized and/or indigenous peoples of Nepal use the former as a space that embodies their denial of discriminatory news in the latter.
Re/Designing Online Platforms by Citizen Designers and its Contribution to the Digital Writing and Research
Authors: Panthee Rajendra Kumar
Published: December 2013

With the development of digital technologies, many have been used for a cross-cultural collaboration in First-Year Composition (FYC) classroom in a cross-cultural contact zone situation. However, their current design excludes writing students from periphery cultural and linguistic backgrounds. The author conducted a usability test that focused on culture and language issues on the current Blackboard interface in order to confirm whether writing students from periphery cultural and linguistic backgrounds are really excluded from current Blackboard interface design. Therefore, the author proposes to invite citizen designers to re/design Blackboard interface so that Blackboard online environments will be transformed into democratic platforms. In this chapter, the authors discuss how Web interface re/design by citizen designers in cross-cultural digital contact zone helps the designers acquire their agency and foster invention in digital writing and research since student agency and invention are the two most sought after elements in the Rhetoric and Writing programs.
A Conceptual Model of Metadata’s Role in BI Success
Authors: Foshay Neil , Taylor Andrew , Mukherjee Avinandan
Published: December 2013

Modern organizations rely on Business Intelligence (BI) systems to provide the information needed to support a wide array of decisions, many of which have significant financial and strategic consequences. As such, information quality is critically important but is also highly contextual, meaning that information that is of sufficient quality for one purpose may not be so for others. The implication of this fact is that users must have the ability to assess information for its fitness to specific purposes. The authors submit that metadata provides this capability. Metadata is information that serves to provide insight into the meaning, quality, location, and lineage of information resources (for example, data elements, queries, and reports) provided by BI systems. In this chapter, they describe how organizations can increase the levels of use of their BI systems by providing the right metadata to users. The authors propose a conceptual model that describes how metadata contributes to the level of BI system use by creating positive attitudes toward the information available. They validate the model through consultation with experts in the fields of BI, information quality, and metadata management as well as through a survey of over 250 BI practitioners.
Trends and Research of Wikis' Quality and Governance Based on Bibliometric and Content Analysis
Authors: Zhu Qinghua , Huang Linghe , Du Jia Tina , Liu Hua
Published: December 2013

Wiki is a typical representative of the User-Generated Content. Its appearance greatly promotes the creation, organization, management, and sharing of knowledge on the Internet. As articles grow rapidly in Wikis, the quality of the articles has aroused many people’s concerns. The topics on how to assess and control the quality of articles have attracted many researchers. However, few studies have been conducted to investigate the status of this research topic. This chapter explores the current research status and trends of wikis' quality and governance. The authors selected papers from the databases of ISI, EI, IEEE, and other widely used databases. They reported the trends and research of wikis’ quality and governance using bibliometric analysis and content analysis of a total of 99 relevant papers. The results show that although the research topics in the field have experienced a very rapid development, they are still at an early age that lacks theories to support them. The discipline of Library and Information Science was found to play a very active role in this new area. Future research agenda and directions are also discussed.
A Case Study to Improve Data Vendor Selection
Authors: McGraw Rick
Published: December 2013

All financial services companies use external sources of consumer income data to assess credit risk, develop risk mitigation strategies, and create pre-approved marketing offers. International credit card issuers spend more than a billion dollars in marketing and invest hundreds of millions in product development based on data from third party vendors. The accuracy of income data is the foundation for their business decisions. The purpose of this engagement was to evaluate the accuracy of third party data providers by measuring the data across six dimensions – Accuracy, Relevancy, Completeness, Coverage, Effectiveness, and Cost. The data provided by the three vendors for this project was incorrect by more than 20% on 75% of the records. The goal of the project was to demonstrate the ability to improve the accuracy of multi-source income data used in credit card marketing applications.
Strategies for Large-Scale Entity Resolution Based on Inverted Index Data Partitioning
Authors: Zhou Yinle , Talburt John R.
Published: December 2013

Inverted indexing is a commonly used technique for improving the performance of entity resolution algorithms by reducing the number of pair-wise comparisons necessary to arrive at acceptable results. This chapter describes how inverted indexing can also be used as a data partitioning strategy to perform entity resolution on large datasets in a distributed processing environment. This chapter discusses the importance of index-to-rule alignment, pre-resolution index closure, post-resolution link closure, and workflows for record-based identity capture and update, and attribute-based identity capture and update in a distributed processing environment.
A Dual-Database Trusted Broker System for Resolving, Protecting, and Utilizing Multi-Sourced Data
Authors: Gibson Neal , Holland Greg
Published: December 2013

A longitudinal database structure, which allows for the joining of data between disparate systems and government agencies, is outlined. While this approach is specific to government agencies, many of the ideas implemented are from the commercial world and have relevance to problems associated with data integration in all domains. The goal of the system is to allow for the sharing of data between agencies while upholding the strictest interpretations of rules and regulations protecting individual privacy and confidentiality. The ability to link records over time is central to such a system, so a knowledge-based approach to entity resolution is outlined along with how this system that integrates longitudinal data from multiple sources can still protect individual privacy and confidentiality. Central to this protection is that personally identifiable information should not be proliferated on multiple systems. The system, TrustEd, is a hybrid model that provides the simplicity of a centralized model with the privacy protection of a federated model.
Learning Sociology in a Massively Multi-Student Online Learning Environment
Authors: Foreman Joel , Borkman Thomasina
Published: December 2013

Is it possible to enhance the learning of sociology students by staging simulated field studies in a MMOLE (massively multi-student online learning environment) modeled after successful massively multiplayer online games (MMOG) such as Eve and Lineage? Lacking such a test option, the authors adapted an existing MMOG—“The Sims Online”—and conducted student exercises in that virtual environment during two successive semesters. Guided by questions keyed to course objectives, the sociology students spent 10 hours observing online interactions in TSO and produced essays revealing different levels of analytical and interpretive ability. The students in an advanced course on deviance performed better than those in an introductory course, with the most detailed reports focusing on scamming, trashing, and tagging. Although there are no technical obstacles to the formation and deployment of a sociology MMOLE able to serve hundreds of thousands of students, such a venture would have to solve major financial and political problems.
The Applicability of Gaming Elements to Early Childhood Education
Authors: Tootell Holly , Freeman Alison
Published: December 2013

Many educators and technology developers advocate the use of gamification in educational environments. However, it is important to evaluate the applicability and value of gaming elements to the environments in which they are being implemented. Early Childhood Education (ECE) presents a unique educational context framed by national curricula and philosophical approaches that influence the adoption of technology, and therefore, gamification as an approach to enhancing learning through intrinsic motivation and engagement. This chapter evaluates the applicability and value of gaming elements to the use of technology in Early Childhood Education (ECE). Various definitions of gamification, particularly in the context of education, are considered. Six tenets of ECE and the concept of play are explored to inform an analysis of the appropriateness of gaming elements to ECE.
A Reflexion on Implementation Version for Active Appearance Model
Authors: Naoui Oum El Kheir , Belalem Ghalem , Mahmoudi Saïd
Published: December 2013

In this paper, the authors propose a distributed schema applied to implement the standard version of the Active Appearance Model (AAM) segmentation approach such as designed by Cootes et al.(1995) (1998). The scheme is intended to be implemented by exploiting the object-oriented software based on remote method invocation as Java-RMI. Implementation is in progress and it is realized step by step.
Human Activity Recognition Using Gait Pattern
Authors: Gupta Jay Prakash , Singh Nishant , Dixit Pushkar , Semwal Vijay Bhaskar , Dubey Shiv Ram
Published: December 2013

Vision-based human activity recognition is the process of labelling image sequences with action labels. Accurate systems for this problem are applied in areas such as visual surveillance, human computer interaction and video retrieval. The challenges are due to variations in motion, recording settings and gait differences. Here the authors propose an approach to recognize the human activities through gait. Activity recognition through Gait is the process of identifying an activity by the manner in which they walk. The identification of human activities in a video, such as a person is walking, running, jumping, jogging etc are important activities in video surveillance. The authors contribute the use of Model based approach for activity recognition with the help of movement of legs only. Experimental results suggest that their method are able to recognize the human activities with a good accuracy rate and robust to shadows present in the videos.
An Interactive System for People Suffering from Cerebral Palsy
Authors: Patrão Bruno , Menezes Paulo
Published: December 2013

In this paper the authors present the development of an augmentative system for people with movement disabilities (mostly cerebral palsy people) to communicate with people that surround them, through a human-computer interaction mechanism. The authors developed an assistive technology application based on gaze tracking in order to select symbols in communication boards, which represent words or ideas so that they could easily create phrases for the patient's daily needs. Cerebral palsy people already use this kind of communication boards, so the authors intend to extend their use for people with absolute no motor coordination. An important improvement of the proposed system with respect to the existing solutions is the ability to work in the presence of voluntary or involuntary head movements. An evaluation of the usability was performed, which showed that it can be easily used by any non-trained person.
Hybridization of Artificial Neural Network and Particle Swarm Optimization Methods for Time Series Forecasting
Authors: Adhikari Ratnadip , Agrawal R. K.
Published: December 2013

Recently, Particle Swarm Optimization (PSO) has evolved as a promising alternative to the standard backpropagation (BP) algorithm for training Artificial Neural Networks (ANNs). PSO is advantageous due to its high search power, fast convergence rate and capability of providing global optimal solution. In this paper, the authors explore the improvements in forecasting accuracies of feedforward as well as recurrent neural networks through training with PSO. Three widely popular versions of the basic PSO algorithm, viz. Trelea-I, Trelea-II and Clerc-Type1 are used to train feedforward ANN (FANN) and Elman ANN (EANN) models. A novel nonlinear hybrid architecture is proposed to incorporate the training strengths of all these three PSO algorithms. Experiments are conducted on four real-world time series with the three forecasting models, viz. Box-Jenkins, FANN and EANN. Obtained results clearly demonstrate the superior forecasting performances of all three PSO algorithms over their BP counterpart for both FANN as well as EANN models. Both PSO and BP based neural networks also achieved notably better accuracies than the statistical Box-Jenkins methods. The forecasting performances of the neural network models are further improved through the proposed hybrid PSO framework.
A Critical Review of the Ontological Assumptions of Actor-Network Theory for Representing e-Government Initiatives
Authors: Priyatma Johanes Eka
Published: December 2013

The potential contribution of Actor-Network Theory (ANT) for representing e-government initiative flows from its ontological assumptions. However, these assumptions have never been critically reviewed using real e-government cases. Using two e-government cases in Indonesia, the paper tries to provide real evidence on how meaningful are all ontological assumptions of ANT for representing e-government.
Two Computer Systems in Victorian Schools and the Actors and Networks Involved in their Implementation and Use
Authors: Davey Bill , Tatnall Arthur
Published: December 2013

As in Australia school education is the responsibility of State Governments, this article will consider two computer systems in the Australian State of Victoria. The article takes a socio-technical stance to examine two computer systems currently in use in schools in Victoria: CASES21 and the Ultranet. After describing these systems, the article makes use of actor-network theory to explore the actors involved in their creation, development, implementation and use (or in one case non-use), and the networks they established in doing so. It looks at the associations involving both the human and non-human actors and how these contributed to successful adoption and use of these systems. A comparison of two systems within the same organisational environment allows a unique perspective on the formation of networks. The ANT approach permits an understanding of the difference in adoption where very few factors differ between the cases.
Fast Elliptic Curve Point Multiplication Algorithm Optimization
Authors: Zhang Hai Bin , Ji Xiao Ping , Wu Bo Ying , Li Guang Yu
Published: December 2013

Scalar point multiplication operation on elliptic curve is the most expensive part of the elliptic curve cryptosystem, also has always been the hot spot of the research. Recoding the positive integer and reducing the amount of inversion in the operation are the two main ideas. In this article, we use the balanced ternary form to recode the positive integer, at the same time, improve the part of calculation way of, reducing the amount of inversion, decreasing operation cost, and improving operation efficiency
A Method of Defining the Optimal Ratio Scheme in Coal Blending Combustion
Authors: Huang Xiao Bin , Liang Long Fei , Zhang Pei Chao
Published: December 2013

Power plant usually burns a certain scale of non-designed coal, separating largely from its designed coal. So it can reduce the fuel costs as well as ensure the economic benefits. To get the optimal ratio scheme of coal blending, Multi-coals of blending are taken as studying subject from the aspect of reducing electric power generation costs. It analyzes the influence on electric power generation costs by coal blending under different ratios, taking enumeration as optimized method .Finally it can give an optimal ratio scheme with the minimal costs.
Risk Analysis Model for Water Pipeline Leakage Based on FAHP and BPNN
Authors: Zeng Wen , Pan Yong Ting , Huang Hong Mei
Published: December 2013

Scientific analysis of the leakage of the water distribution system in city is very helpful to water supply network’s maintenance and renovation, and hence reduces negative social effect and economic loss. A leakage risk nalysis model for water distribution system was established based on fuzzy analytical hierarchy process (FAHP) and BP neural network (BPNN). This model introduces FAHP to reasonably ensure initial state of BP neural network, and uses weighted superposition to mend learning sample set of BP neural network. The water distribution system of a city in Zhejiang province P. R. China was selected to test the proposed risk analysis model, which verifise its feasibility and effectivity.
Study on the Effect of the Evaporator Area on the Heat Transfer Performance in the Gravity Feed Liquid Refrigeration System
Authors: Liu Qing Jiang , Han Fang
Published: December 2013

In order to study the effect on heat transfer performance of evaporator in the gravity feed liquid refrigeration system the different evaporator area, the simulation procedure is worked out. The procedure uses the visual basic language. The procedure can figure out the heat transfer coefficient and the temperature difference in different evaporator area and evaporating temperature with the required refrigerating capacity. Through simulation calculation, when the area is 80% of the original design area of evaporator, the evaporator of the heat transfer coefficient and heat transfer temperature difference is the most reasonable and the evaporator of the refrigerating capacity can meet the requirements of cold storage. The program provides the reliable data for the gravity feed liquid cooling system optimization.
Calculation of Power Frequency Electric Field under Overhead Lines with Complex Ground
Authors: Liang Zhen Guang , Jiang Yu Ze , Jiang Di Wen , Liu Zong Jie
Published: December 2013

This paper studied influence of three dimension complex ground on electric field under overhead lines. Surface charge method is discussed and planar triangle surface charge elements are used to represent complex ground. Electric field of overhead lines is analyzed by charge simulation method. Finite straight line charges are used to represent conductors. Then electric field of 220kV double circuit overhead lines over a three dimension small hill is calculated and distribution of electric field 1.5m above the ground is analyzed.
Operation Analysis of Distribution Network with Distributed Generation
Authors: Yang Jun Ting , Ma Xiu Fan , Yang Pei Pei
Published: December 2013

This article put forward with "DG optimization of the distribution network benefit " to measure the operating economy of distribution network containing DG and build an economic analysis model. Based on flow calculation, this model analysis the economic of distributed network with DG fully consider the various factors that have an impact on the economic of distribution network, such as line losses, transformer losses, electricity price and DG itself variable costs .Through the flow calculation and analysis, the feasibility of the model is validated.
Application of Smart Grid Technology in the Coalmine Power System
Authors: Gao Zhan Jun , Wang Jun Shan
Published: December 2013

According to the problems emerged in the coalmine power system, such as poor reliability and lagging protection technology principles, this paper proposed some advices about the construction of the intelligent coalmine power system. Using SCADA system and GIS to locate the fault and recovery it; using Differential protection and intelligent monitoring terminal to guarantee the reliability of the coalmine power system; using Panoramic Data Platform to monitor the coalmine power system; using a series of auxiliary equipment to realize the automatic regulation and control of the coalmine power system.
A Droop Control Strategy with Impedance Compensation for Low Voltage Microgrid
Authors: Yu Zhi Yong , Lu Ming , Wang Zhen Nan , Zhang Yi Gong
Published: December 2013

With conventional droop control, parallel operation of distributed generations (DG) in microgrid would lead to unbalanced power sharing. In this paper, inherent limitation of conventional droop control is analyzed. Analysis results show that different converter output impedance and line impedance make the power sharing unbalanced. In order to weaken or eliminate impedance difference from point of common coupling (PCC) to DGs, virtual impedance is introduced. By the introduction of designed virtual impedance, a novel droop control strategy with impedance compensation is proposed in this paper. Simulation results are presented from a two converters parallel-connected microgrid, showing the effectiveness of the droop control with impedance compensation. Simulation results show that DGs with proposed approach can allocate the power equally, and work stably in grid-connected mode, island mode and progress of reconnection to grid.
Study on a Permanent Magnet Bias Axial Magnetic Bearing
Authors: Zhao Xu Sheng , Li Jian
Published: December 2013

A permanent magnet bias axial magnetic bearing (PAMB) is introduced, the configuration and operation principle are analyzed; The equivalent magnetic circuit is established, the math expression of axial suspension force and some equations for carrying capacity, current stiffness and displacement stiffness are deduced; The parameters of the proposed prototype are also given. The magnetic field simulation is performed by using the Finite Element software. The theory analysis and the simulation results show that the presented PAMB has smaller volume, the control is easier; the parameters design is feasible and exact.
Small Signal Stability Analysis Based on Multi-Band Parallel Technology in Henan Power Grid
Authors: Yu Lin Lin , Rao Yu Fei , Wang Shi Qian
Published: December 2013

With the rapid growth in the size of Henan grid, in the context of UHV networking, Henan power grid operation is facing a more complex mechanism and operating characteristics. Risks affecting the security and stability will be more subtle. There are more and more problems in frequency oscillation. The power system has much more generators and dimension after interconnection. Small signal stability analyzing eigenvalue complex and longer, which greatly reduces the work efficiency. This paper which based on Henan power system stability diagnostic platform developed technology based on multi-band parallel algorithm for small signal stability analysis. The analysis of the small signal stability eigenvalue calculation is assigned to a different platform computing nodes simultaneously. Then this method is applied to Henan grid in the year of 2012. The results show that the small signal stability algorithm which based on the multi-band can ensure the correctness of calculations. Simultaneously, calculation time is greatly reduced and the work efficiency is improved. The practice has a strong role in the promotion.
The Study on the Post-Evaluation of Benefits of the Abandon Hydropower
Authors: Tao Xiao Long , Zhang Ya Fu , Wang Shan
Published: December 2013

In allusion to the problem that abandon hydropower computing ignores the grid absorption capacity, the calculation model of the abandon hydropower considering grid absorption capacity is proposed. In generating daily plan for reference, according the quantity that in excess of the plan calculates the abandon hydropower. In the order of each plant coal consumption rate to reduce the thermal power output from high to low. Hydropower to replace this part of thermal power electricity. When the economic benefit and environmental benefit is largest, we calculate the abandon hydropower that can absorbed by the system. Calculate the increasing benefit of the abandon hydropower by the with and without comparison method when a engineering have been operating.
Fault Prediction Based on Dissolved Gas Concentration from Insulating Oil in Power Transformer Using Neural Network
Authors: Yang Fang Ming , Liu Chuan , Sun Yong , Long Qi , Fan You Ping
Published: December 2013

Reliable and continued performance of power transformer is the key to profitable generation and transmission of electric power. Failure of a large power transformer not only results in the loss of expensive equipment, but it can cause significant guarantied damage as well. Replacement of that transformer can take up to a year if the failure is not disastrous and can result in tremendous revenue losses and fines. A power transformer in operation is subjected to various stresses like thermal stress and electrical stress, resulting in liberation of gases from the hydrocarbon mineral oil. Dissolved gas analysis is a technique used to assess incipient faults of the transformer by analyzing specific dissolved gas concentrations arising from the deterioration of the transformer. DGA is used not only as a diagnostic tool but also to track apparatus failure. In this research work the dissolved gas values measured for a 230kV / 110kV power transformer which are obtained from electricity board are used as references to the developed neural network. The neural network is trained and the transformer faults are predicted. The trained neural network shows the good performance for the prediction of fault in a 230kV/110kV power transformer.
Fault Diagnosis Method for the Train Axle Box Bearing Based on KPCA and GA-SVM
Authors: Wang Ci , Jia Li Min , Li Xiao Feng
Published: December 2013

Online fault diagnosis for the train axle box bearings is a wide and important study topic since it plays a critical role in train safety. Due to the vibration signals nonlinear and non-stationary characteristics, accuracies of the methods such as neural network and hierarchical clustering are less than 90% which are not satisfying. In this paper, kernel principal component analysis (KPCA), a nonlinear process technique, was to tackle each signals 18 feature parameters for extracting the main features to reflect the signal characteristics. Then, in fault pattern recognition, support vector machine (SVM) based on genetic algorithm (GA) was used to identify the current fault type of the bearings, including normal, outer ring fault, inner ring fault and rolling element fault. The results show that the prediction accuracy of GA-SVM method reaches to 96.33%, which is quite effective.
Design of Multiuser Temperature Real-Time Monitoring System with Function of Remote Communication
Authors: Wang Yu Mei , Feng Jie Wei
Published: December 2013

Temperature is an important physical characteristic parameter that features the patients physical condition in hospital, and it is a kind of clinical vital signs.This paper presents a kind of multiuser temperature real-time monitoring system; it can realize multiuser fast measure of patients temperature, and draw the patients temperature curves under the guidance of the monitoring system. The system would alarm timely when the patient's temperature is abnormal.
The Test Method Research of Residual Voltage for Electrical Products
Authors: Sun Wei , Tong Zhu Jue , Wang Xiao Ling
Published: December 2013

Referring to the requirements of national standards in residual voltage test of electrical products quality inspection, the methods, requirements and calibrations of residual voltage test were discussed. Mainly the problems of affecting accuracy at the time of the test voltage were analyzed, and the specific solutions were put forward.
High Energy Pulses Cold Patch Repair Droplet Transfer Analysis Based on High-Speed Camera
Authors: Teng Jia Xu , Yang Jun Wei , Yin Feng Liang , Zhang Ping , Huo Xiao Jing
Published: December 2013

The image signal of intermittent high energy pulsed droplet transfer are acquired using high-speed camera systems and self-developed high-energy pulsed cold patch machine. Then, the droplet transfer characteristics in high-energy pulsed cold patch process were discussed. The results showed that in the high-energy pulsed cold patch repair process, welding wire and substrate surface were melted by instantaneous high voltage arc and dropwise droplet were formed. And the droplet jitter, roll by gravity and surface tension and then cooled and solidified rapidly, metallurgical fused at the end.
Application of Support Vector Machine in the Mixed Circuit Fault Diagnosis
Authors: Pan Qiang , Wang Huai Long
Published: December 2013

Proposed a mixed circuit fault diagnosis method based on support vector machines for the lower rate of mixed circuit fault diagnosis and diagnosis slower. The basic idea is the use of wavelet decomposition to extract the dynamic current of the mixed circuit, and re-integration of the SVM fault diagnosis. By PSPICE software and MATLAB software simulation analysis of the mixed circuit, simulation results show that this method can improve the convergence speed of the BP neural network, and can make the BP neural network is not easy to fall into local minimum value, so that the network has a better pattern recognition capability. This laid the foundation for the completion of a more rapid and accurate mixed circuit fault diagnosis.
Numerical Simulation of Rock Bolt Deformation under Dynamic Load
Authors: Li Zhong Wei
Published: December 2013

This paper used LS-DYNA simulation software to simulate rock bolt breaking position, displacements at different locations and the plastic deformation under dynamic load. Major drew the following conclusions: plastic deformation of the bolt away from breaks 600mm is only 1/20 compared with breaks; deformation of the rock bolt increased as the distance away from dynamic load applied position reduced, rock bolt deformation under dynamic load has a local effect; rock bolt deformation under dynamic load and rock bolt deformation under static load had essentially different.
Optimization Method for Trajectory Correction Accuracy of Target Measurement Based on Monte-Carlo
Authors: Yang Hui Juan , Huang Zheng , Huo Peng Fei , Wang Jia Wei
Published: December 2013

Aiming at the coupling effect of target radiation measurement error and trajectory correction threshold to the hitting accuracy on the Last revised bullets, the optimal design solution based on Monte - Carlo method is proposed, and the CEP curve under the conditions of different correction threshold and target measurement errors by simulation is obtained. Moreover, objective indicators of measurement error and the corresponding threshold of amendments are given. A design basis for system development is obtained.
A Reasonable Stretching Mode for Pressure-Dispersive Grout Anchor with U-Shaped Load-Bearing Bodies in Soil Ground
Authors: Sun Xi Yuan , Heng Chao Yang , Zhou Zhi
Published: December 2013

With the development of supporting technology, more and more pressure-dispersive anchor systems are applied in civil and mining engineering recently. In this anchor system, unbonded steel strands are used to disperse the external load to load-bearing bodies at different locations, and the load is transferred through the compressing action between the load-bearing body and cement mortar. It has obvious technique advantage as a permanent anchor system. However, the stretching mode for pressure-dispersive grout anchor is still not clear in actual engineering practice. In this paper, there are 3 common types of stretching mode for pressure-dispersive grout anchor with u-shaped load-bearing bodies in soil ground are analyzed by FEM (finite element method) and the reasonable one is suggested. Ulteriorly, the loading formulas are deduced respectively for the pressure-dispersive grout anchor with 2 or 3 load-bearing bodies, which will be used conveniently in practice.
The Effect of Air Change Rate and Cleanroom Garment on Cleanliness in Grade B Cleanroom
Authors: Li Hao , Zou Zhi Jun , Wang Fei
Published: December 2013

The air change rate and cleanroom garment have a great impact on cleanliness and operating cost of cleanroom. This paper use the method of numerical simulation to research the effect on cleanliness with different air change rate and cleanroom garment in Grade B cleanroom. The results show the air change rate of 20/h will meet the requirements of the specification and the garment cover whole human body will decrease the particles emitted from human body mostly.
The Research of Auger-Type Heat Exchanger Fluid Characteristic Based on FLUENT
Authors: Wang Hai Yan , Wang Na , Song Juan , Shao Rui Ying
Published: December 2013

The auger-type heat exchanger possesses many merits, such as compact structure, high thermal efficiency, and is mainly used in food, oil, natural gas and chemical industry. The shell-side fluid characteristics are calculated through FLUENT based on computational fluid dynamics (CFD) theory, and the typical regional and cross-section of the shell-side fluid are analyzed in detail. The results show that current "dead zone" exists in the head of the receiver at the entrance and the core body, which is not conducive to the efficiency and service life of the heat exchanger, and a large pressure exists on the outer heat transfer tubes at the entrance, which leads to the erosion.
Research of the Steady-State Modeling Method Based on Neural Network
Authors: Zhu Yu Hua , Zhuang Dian Zheng
Published: December 2013

Nitric acid production process is complicated reaction mechanism, serious non-linear the traditional mechanism modeling to get the low accuracy of the mathematical model. This paper adopts a non-mechanism modeling, using the production history data, the use of artificial neural network has the right to arbitrary nonlinear mapping any approximation ability to simulate the relationship of the actual system input-output, trained to be get steady-state model of the nitric acid production process.
A Predictor of How Many Books a University Library will Purchase Using Regression Control
Authors: Sun Bao
Published: December 2013

A library should select new books in accordance with a rational principle, which make it necessary to construct a prediction model for buying books. The paper provides a reasonable criterion to conduct university library to construct an efficient collection. The change of library lending depends on the change of the number of readers and on the change of the books that a library possesses. The author has investigated library lending and the number of readers of a university library in China for 18 school years and finds that the sample data fit the simple linear regression model. Then the prediction equation and the prediction value of library lending in the school year 2012-2013 is obtained. The author has observed library lending and the library collection for 11 school years and finds that the sample data fit the regression model.. Then Based on the control theory of the regression analysis, the control equation and the control value of the collection in the school year 2012-2013 is obtained according to the prediction value of library lending. The control value of the collection minus the observed value of the collection in last school year 2011-2012 is the library demand for new books in the school year 2012-2013.
Tooth Profile Generation of Point-Contact Involute Planetary Gear Drive with Small Teeth Difference
Authors: Yi Wen  Cui , Wang Bao Ying , He Shu
Published: December 2013

A new kind of involute planetary gear drive with small teeth difference which meshes in point contact is put forward based on the kinematic method of gear geometry in this paper. The generation principle of tubular tooth surface is proposed according to a selected smooth curve attached to the planetary wheel tooth surface. The general equations of conjugate tooth surfaces are derived and its conjugated contact curve on the internal gear is also determined. Then the mathematical model is established. The parameter selection and meshing characteristics of point-contact involute planetary gear drive with small teeth difference are discussed respectively. The three dimensional model is finally established and its motion simulation is worked out. It lays the significant theoretical foundation and practical meaning for improving the gear transmission performance.
Flight Flow Balanced Allocation in Terminal Airspace
Authors: Pan Wei Jun , Qiu Wen Bin , Kang Rui
Published: December 2013

A nonlinear integer programming model (NIPM) with constraints is proposed to solve the allocation of approach flight flow where ends with terminal airspace, an example of an airport terminal airspace is given, where the flow is accurately forecasted.Analysising flight delays, theres a conclusion: the results solved by NIPM is far better than the average allocation method, for the second-level airspace, NIPM can reduce two flight delays, and the allocation in each flight route tends to be equilibrium, NIPM can also provide air traffic controllers with accurate and reasonable allocation schedule.
Optimized Processing Scheme for Abrasive Fault of Steam Turbine Shaft
Authors: Gu Yu Jiong , Xu Jing , He Xi
Published: December 2013

It is of great significance to adopt the reasonable scheme to repair the abrasive shaft in order to make sure the safety and stable operation of the steam turbine unit. Taking a real 600MW steam turbine generator unit with worn shaft as the target system, we employ finite element software ANSYS to establish the model of the local worn shaft segment in this paper. Two kinds of optimized processing strategies are proposed to repair the worn shaft segment, considering the situation of cutting quantity and shear stress distribution. The two proposed schemes can reduce the stress concentration of the worn shaft parts largely. The study proves that the method is feasible and can be used to processing other similar failures.