bluuebunny/crossref_metadata_2025 huggingface dataset:
Recent Advances in Integrated Photonic Sensors
Authors: Passaro Vittorio , Tullio Corrado , Troia Benedetto , Notte Mario , Giannoccaro Giovanni , Leonardis Francesco
Published: November 2012

Nowadays, optical devices and circuits are becoming fundamental components in several application fields such as medicine, biotechnology, automotive, aerospace, food quality control, chemistry, to name a few. In this context, we propose a complete review on integrated photonic sensors, with specific attention to materials, technologies, architectures and optical sensing principles. To this aim, sensing principles commonly used in optical detection are presented, focusing on sensor performance features such as sensitivity, selectivity and rangeability. Since photonic sensors provide substantial benefits regarding compatibility with CMOS technology and integration on chips characterized by micrometric footprints, design and optimization strategies of photonic devices are widely discussed for sensing applications. In addition, several numerical methods employed in photonic circuits and devices, simulations and design are presented, focusing on their advantages and drawbacks. Finally, recent developments in the field of photonic sensing are reviewed, considering advanced photonic sensor architectures based on linear and non-linear optical effects and to be employed in chemical/biochemical sensing, angular velocity and electric field detection.
McMAC: Towards a MAC Protocol with Multi-Constrained QoS Provisioning for Diverse Traffic in Wireless Body Area Networks
Authors: Monowar Muhammad , Hassan Mohammad , Bajaber Fuad , Al-Hussein Musaed , Alamri Atif
Published: November 2012

The emergence of heterogeneous applications with diverse requirements forresource-constrained Wireless Body Area Networks (WBANs) poses significant challengesfor provisioning Quality of Service (QoS) with multi-constraints (delay and reliability) while preserving energy efficiency. To address such challenges, this paper proposes McMAC,a MAC protocol with multi-constrained QoS provisioning for diverse traffic classes in WBANs. McMAC classifies traffic based on their multi-constrained QoS demands andintroduces a novel superframe structure based on the "transmit-whenever-appropriate" principle, which allows diverse periods for diverse traffic classes according to their respective QoS requirements. Furthermore, a novel emergency packet handling mechanism is proposedto ensure packet delivery with the least possible delay and the highest reliability. McMAC is also modeled analytically, and extensive simulations were performed to evaluate itsperformance. The results reveal that McMAC achieves the desired delay and reliability guarantee according to the requirements of a particular traffic class while achieving energy efficiency.
Impact of High Power Interference Sources in Planning and Deployment of Wireless Sensor Networks and Devices in the 2.4 GHz Frequency Band in Heterogeneous Environments
Authors: Iturri Peio , Nazábal Juan , Azpilicueta Leire , Rodriguez Pablo , Beruete Miguel , Fernández-Valdivielso Carlos , Falcone Francisco
Published: November 2012

In this work, the impact of radiofrequency radiation leakage from microwave ovens and its effect on 802.15.4 ZigBee-compliant wireless sensor networks operating in the 2.4 GHz Industrial Scientific Medical (ISM) band is analyzed. By means of a novel radioplanning approach, based on electromagnetic field simulation of a microwave oven and determination of equivalent radiation sources applied to an in-house developed 3D ray launching algorithm, estimation of the microwave oven’s power leakage is obtained for the complete volume of an indoor scenario. The magnitude and the variable nature of the interference is analyzed and the impact in the radio link quality in operating wireless sensors is estimated and compared with radio channel measurements as well as packet measurements. The measurement results reveal the importance of selecting an adequate 802.15.4 channel, as well as the Wireless Sensor Network deployment strategy within this type of environment, in order to optimize energy consumption and increase the overall network performance. The proposed method enables one to estimate potential interference effects in devices operating within the 2.4 GHz band in the complete scenario, prior to wireless sensor network deployment, which can aid in achieving the most optimal network topology.
The Swipe Card Model of Odorant Recognition
Authors: Brookes Jennifer , Horsfield Andrew , Stoneham A.
Published: November 2012

Just how we discriminate between the different odours we encounter is notcompletely understood yet. While obviously a matter involving biology, the core issue isa matter for physics: what microscopic interactions enable the receptors in our noses-smallprotein switches—to distinguish scent molecules? We survey what is and is not known aboutthe physical processes that take place when we smell things, highlighting the difficultiesin developing a full understanding of the mechanics of odorant recognition. The maincurrent theories, discussed here, fall into two major groups. One class emphasises thescent molecule's shape, and is described informally as a "lock and key" mechanism. Butthere is another category, which we focus on and which we call "swipe card" theories:the molecular shape must be good enough, but the information that identifies the smellinvolves other factors. One clearly-defined "swipe card" mechanism that we discuss hereis Turin's theory, in which inelastic electron tunnelling is used to discern olfactant vibrationfrequencies. This theory is explicitly quantal, since it requires the molecular vibrations totake in or give out energy only in discrete quanta. These ideas lead to obvious experimentaltests and challenges. We describe the current theory in a form that takes into accountmolecular shape as well as olfactant vibrations. It emerges that this theory can explainmany observations hard to reconcile in other ways. There are still some important gapsin a comprehensive physics-based description of the central steps in odorant recognition. We also discuss how far these ideas carry over to analogous processes involving other smallbiomolecules, like hormones, steroids and neurotransmitters. We conclude with a discussionof possible quantum behaviours in biology more generally, the case of olfaction being justone example. This paper is presented in honour of Prof. Marshall Stoneham who passedaway unexpectedly during its writing.
Les deux tournants, ou la religion dans l'œuvre de Durkheim avant Les formes élémentaires
Authors: Paoletti Giovanni
Published: November 2012

Résumé Durkheim développa son intérêt pour l’étude de la religion très tôt, sans plus le délaisser par la suite. Son programme de recherche, formulé dès ses premiers textes (1886-1887), consiste en quelques questions fondamentales, qui reviennent dans toute son œuvre : la définition de la religion, ses fonctions sociales, son rapport à la morale, son avenir dans les sociétés modernes. Si les questions restent les mêmes, les réponses de Durkheim se modifient au fil des ans. À deux occasions, autour de 1897 et de 1907, on est en présence d’un véritable tournant dans sa conception des phénomènes religieux. Réexaminer ce parcours complexe et laborieux peut aider à jeter une lumière nouvelle sur les enjeux des Formes élémentaires de la vie religieuse et sur les problèmes que Durkheim s’efforça de résoudre dans son dernier chef-d’œuvre.
Peine de mort menace dissuasive ou effet pervers ?
Authors: Demont Vincent , Sayah Ali
Published: November 2012

Résumé La peine de mort vise notamment à dissuader les potentiels meurtres, mais est-ce réellement efficace ? Cet article survole les études consacrées à cette question pour montrer l’absence de consensus. Il enchaîne avec une approche théorique sur l’impact dissuasif de la peine de mort en prenant en compte des mécanismes mis en avant par la psychologie sociale, comme la rationalité limitée, l’usage d’heuristiques, la motivation, les dimensions culturelles, etc. Et en particulier la psychologie de la menace avec la théorie du management de la terreur et le modèle de maintien de signification. L’article conclut que la peine de mort doit faire face à de nombreux mécanismes psychiques et à des contraintes de cohérences culturelles qui minimisent son potentiel dissuasif.
La mélo-manie ou la voix objet de passions
Authors: Vivès Jean-Michel
Published: November 2012

La voix est un objet pulsionnel peu abordé dans le champ de la psychanalyse. Elle peut néanmoins se révéler à l’occasion l’enjeu de virulentes passions qui indiquent la place particulière qu’elle peut occuper dans la dynamique pulsionnelle de certains sujets. C’est parce que la voix se situe au cœur même des enjeux de la naissance du sujet psychique que l’on peut en comprendre l’importance et la spécificité au sein de la liste des objets pulsionnels. L’auteur de cet article s’attache à mettre en évidence, à partir de cette particularité, les coordonnées d’une mélo-manie, passion de la Chose vocale.
Quand l'âme chante. La voix mélodique et son pouvoir affectif
Authors: Dakovanou Xanthoula
Published: November 2012

Dans diverses formes de chant répandues à travers les époques et les continents, on observe un grand pouvoir d’expression affective. L’étude du chant monodique profane et sacré occidental et oriental, de l’opéra, du chant improvisé oriental et des premières polyphonies occidentales montre que la mélodie prime sur le texte quand l’expression d’une émotion pure se présente. Nous pourrions alors confirmer que la mélodie, exprimée par la voix humaine, est l’élément qui assure principalement l’expression de l’émotion dans le chant, car sinon l’homme se contenterait de la lecture d’un poème, porté par la voix parlée. Ce pouvoir d’expressivité affective provient d’un lien fort du chant avec la voix préverbale – qui est le premier lien sonore avec le premier objet – et les qualités musicales de cette voix. La première mélodie, jeu vocal-espace transitionnel du bébé aurait comme fonction de lier l’enfant à la mère, de le consoler de la séparation. Cet état de manque, voire de deuil plus tard dans la vie, ouvrirait la voie à la sublimation comme issue possible de la libido dans l’activité artistique — et quel lien serait plus opportun pour se lier à l’objet perdu que la voix, premier lien sonore avec celui-ci ? La sublimation de cette voix préverbale et fortement chargée d’émotions selon les règles sonores universelles, l’esthétique de l’époque et du compositeur nous donnerait la mélodie, porteuse de l’affect dans le chant. La combinaison avec le texte nous donnerait le chant même.
Alexandre Papadiamantis, un saint passionné
Authors: Evzonas Nicolas
Published: November 2012

En dépit du titre du « Saint des Lettres grecques », Alexandros Papadiamantis, reconnu comme l’écrivain « national » de la Grèce moderne, se dessine à travers ses textes comme le chantre des passions et le porte-parole d’une pulsionnalité exubérante. L’article propose une exploration du dynamisme émotionnel de son œuvre axée autour de quatre thématiques : le regard clandestin hédoniste, les scénarios jaloux théâtralisant la jouissance insaisissable de l’Autre, l’Éros pour la femme privée de ses sensations recelant la peur viscérale de l’altérité et la mort récurrente des êtres féminins assimilée à des meurtres préventifs au nom de la virginité et de la stérilité.
Developing Culturally Diverse Direct Caregivers for Care Work With Older Adults: Challenges and Potential Strategies
Authors: Davis Boyd H. , Smith Mary K.
Published: November 2012

This discussion presents real-world examples of challenges that occur in geriatric training as a contribution to the ongoing conversation about tailored training for direct caregivers. Numerous discussions are available on the need for more geriatric training in nursing, including aspects of care for patients with dementia, but few if any studies have identified a similar need on behalf of direct care workers, including home health care aides, personal care aides, and nursing assistants who are not part of a licensure track or a baccalaureate-based nursing curriculum. This discussion examines three cultural factors that underlie challenges for nursing educators and supervisors in dementia care who oversee direct care workers: (1) the effect of immigrant cultures and languages; (2) the effect of different intergenerational cultural constructs; and (3) the effect of culturally derived attitudes about aging and dementia. Strategies to address these challenges are offered.
Digital Death
Authors: Pitsillides Stacey , Waller Mike , Fairfax Duncan
Published: November 2012

Within this chapter, the authors consider the emergence of new cultures and practices surrounding death and identity in the digital world. This includes a range of theory-based discussions, considering how we remember and document the absence of information and how communities and individuals deal with the virtual identities of their loved ones after death. This highlights the evolvement of digital practices in relation to public grief and the building of public (communal) identity, including the impact of digital recording and sharing of ones identity(s). Furthermore, the chapter stresses the relevance of the mediation of memory, discussing how mediation impacts one’s own identity and the communal cultural identity of society at large. Finally, the chapter concludes by considering what role personal choice plays in the way we deal with digital data, and more widely, our digital selves after death.
Factors Influencing E-Commerce Growth
Authors: Karimov Farhod P.
Published: November 2012

This paper presents an inter-country comparative analysis of key inhibitors and enablers affecting the diffusion of e-commerce across transition economies of Central Asia. It reveals that the combined effect of dissimilar economic, political, and technical impediments is a major underlying motive for differing e-commerce adoption patterns across these transition countries. This paper contributes to a better understanding of the issues affecting e-commerce diffusion and their implications for successful e-commerce implementation in countries undergoing the difficult process of transition to a market economy.
MusicXML
Authors: Good Michael D.
Published: November 2012

MusicXML is a universal interchange and distribution format for common Western music notation. MusicXML’s design and development began in 2000, with the purpose to be the MP3 equivalent for digital sheet music. MusicXML was developed by Recordare and can represent music from the 17th century onwards, including guitar tablature and other music notations used to notate or transcribe contemporary popular music. MusicXML is supported by over 160 applications. The development and history of MusicXML is described in this chapter.
Towards Arab Digital Libraries
Authors: Al-Suqri Mohammed Nasser , Al-Hinai Khalsa Abdullah , Al-Hashmi Kawther Mohammed
Published: November 2012

The rapid development of Information and Communication Technologies (ICTs) and the advent of the World Wide Web (WWW) in the 1990s and universally centralized digital media for information storage, organization, retrieval, and management have led to the emergence of the Digital Library, which, while not replacing the traditional library per se, has contributed to the creation of hybrid forms combining the characteristics and organizational structure of both the digital and the traditional library models. This chapter draws on existing literature to highlight the potential opportunities, which digital libraries offer to the countries of the Arab world, and to examine the challenges inherent in their development and how these might best be overcome. The chapter concludes that libraries in many Arab countries are still hindered by a severe lack of resources, trained and experienced staff, and adequate infrastructure, and these problems could severely undermine attempts to move towards digitizing libraries. It is the role of the governments of these countries, along with commercial organizations, information professionals, academic specialists, and other groups to acknowledge the benefits and opportunities offered by digital libraries and work together to make them a reality in the Arab world.
Digital Library Initiatives in India
Authors: Gupta Jyoti
Published: November 2012

Digital libraries play an important and indispensable role in educational and research development of higher educational institutions such as colleges, universities, and institutes of an academic and research nature. The aim of the digital library is to provide instant access to digitized information and consists of a variety of information sources, paper to paperless including multimedia. Digitization implies conversion of documents in text, sound, graphical, or pictorial form into the language of digits (zero and one). Once the information sources are available in digital form, they can then be accessed, distributed, and transmitted easily in almost no time with no cost to the end-users over the global information network. It not only facilitates the library functions but also saves the time, strength, and energy of the users. A databank of digital cultural heritage from libraries, archives, and museums has been established with online service for national and worldwide users. The chapter highlights some features of digital libraries and the Indian Scenario of Digital Libraries.
The Effect of Music Listening, Personality, and Prior Knowledge on Mood and Work Performance of Systems Analysts
Authors: Lesiuk Teresa , Polak Peter , Stutz Joel , Hummer Margot
Published: November 2012

This research examined the effect of music use, personality and prior knowledge on mood and work performance of 62 Systems Analysts. Although the quality of the data modeling task did not appear to be affected by the experimental treatment of 10 minutes of music listening, the level of extraversion, modeling proficiency, and theoretical knowledge related to modeling showed significant effects. Nevertheless, the effects of music were demonstrated on several mood measures. The effect of music on negative and positive affect, along with their subscales, are presented. Finally, changes in the mood of participants who listened to the music are examined in the light of various demographic and personality variables.
The Librarian and the Designer
Authors: Doan Tomalee , McGee Melinda
Published: November 2012

Many institutions of higher education are designing spaces that reflect the established correlation between learning spaces and student achievement, mastery, and retention (Hunley & Schaller, 2006). In this case study of a renovation of an 18,327 square foot business library space into a dynamic learning environment, Melinda McGee, the Interior Designer for the project, and Tomalee Doan, the Associate Professor and Head Librarian of the business library, share the experience of their successful partnership that required a creative and an in-depth collaboration with each other and with several other stakeholders not usually found in an academic setting. Their goal is to provide a resource for educators, students, and administrators desiring to create learning spaces that encourage student achievement. Basic design terminology, the role technology played in the design, and the importance of the product manufacturer’s interest in creating effective products for higher education are presented.
The Development of a Theoretical Model for Optimizing Energy Consumption in Buildings
Authors: Maleviti Eva
Published: November 2012

This paper presents a theoretical model that could improve buildings’ energy performance. A sample of Greek hotels has been selected, and their energy performance is elaborated. The results from the use of the model Long Range Energy Alternative Planning are presented, providing the reduction in energy consumption. In addition, a set of interviews was conducted in the hoteliers in order to understand their views in implementing energy measures in their facilities. The results of both analyses are in detail elaborated, pointing out the significance in combining both type of information in order to improve buildings’ energy performance. As a concluding remark a theoretical model has been developed in order to show the necessity of considering both types of data for optimizing buildings’ energy performance.
Chaotic Dynamics and Bifurcations in Impact Systems
Authors: Kryzhevich Sergey
Published: November 2012

Bifurcations of dynamical systems described byseveral second order differential equations and by an impact condition are studied. It is shown that the variation of parameters when the number of impacts of a periodic solution increases, leads to the occurrence of a hyperbolic chaotic invariant set.
Oil Consumption Forecasting in Turkey using Artificial Neural Network
Authors: Turanoglu Ebru , Senvar Ozlem , Kahraman Cengiz
Published: November 2012

Oil and energy markets have experienced dramatic changes over the past three decades. Due to these changes, it may be difficult to model and forecast the oil consumption with traditional methods such as regression. Artificial Neural Networks (ANNs) are the strong rival of regression and time series in forecasting. ANNs provide good accuracy along with more reliable and precise forecasting for policy makers, in this regard, ANNs can establish the foundation for oil consumption management by providing good model results. This paper tries to unfold the oil consumption forecasting in Turkey using ANN through some predetermined inputs, which is data for population, GDP, import and export of Turkey from 1965 to 2010, with the aim of finding the essential structure of the data to forecast future oil consumption in Turkey with less error.
Hamming Distance based Clustering Algorithm
Authors: Vijay Ritu , Mahajan Prerna , Kandwal Rekha
Published: November 2012

Cluster analysis has been extensively used in machine learning and data mining to discover distribution patterns in the data. Clustering algorithms are generally based on a distance metric in order to partition the data into small groups such that data instances in the same group are more similar than the instances belonging to different groups. In this paper the authors have extended the concept of hamming distance for categorical data .As a data processing step they have transformed the data into binary representation. The authors have used proposed algorithm to group data points into clusters. The experiments are carried out on the data sets from UCI machine learning repository to analyze the performance study. They conclude by stating that this proposed algorithm shows promising result and can be extended to handle numeric as well as mixed data.
MAS-based Agent Societies by Means of Scout Movement
Authors: Paletta Mauricio
Published: November 2012

The concept of agent societies (or organizations) has become an important research area in the field of agent-related systems and vice versa. In order to do field-related simulations or to solve a variety of problems based in this research area, Multi-Agent System (MAS) frameworks are necessary. Several good proposals have been presented in this field. This paper presents a new MAS-based framework for agent societies based on the principles of a familiar, global connotation youth movement known as Scouting. The main goal of this paper is not to demonstrate whether the proposal presented here, which is presented by name of MAS-Scout, is better or not than the other current proposals. Instead, MAS-Scout is focusing in the following premise: knowing that Scouting has been a very successful social movement in the world; can its principles be used as a basis for designing a MAS-based framework used for implementing agent societies?
Information Security Awareness at Saudi Arabians’ Organizations
Authors: Alzamil Zakarya A.
Published: November 2012

Information security awareness is human and organizational attitudes which can be described as a behavior or an attitude of an organization and/or its members towards protecting the organization’s information assets. The goal of this paper is to understand the state of the information security awareness at some of the Saudi Arabians’ organizations, i.e., governments and privates by investigating the perception of their information technology’s employees. The author believes that understanding the state of information security awareness of IT employees can give a better understanding of the level of awareness at the entire organization. The results of this study show that most of the IT employees at the surveyed organizations have some misconceptions about information security practices. In addition, many responses indicated that many IT employees are not aware of the internal information security threats. Such results required very urgent actions from the top management of these organizations to consider the information security awareness programs within their public relations and training programs.
Study on Wear Behaviors and Grain Effects of PCD Cutting Tools in Turning Granite
Authors: Liu Shen Zhuo , Kou Zi Li , Zhang Rui , Liu Cheng Liang , Li Yu , Li Rong Qi , Yan Xiao Zhi
Published: November 2012

In this paper, three types of polycrystalline diamond (PCD) tools marked as PCD 030, PCD 010 and PCD 005 (equivalent to 30, 10, and 5μm average grain size of original diamond) were tested, and their wear behaviors was studied. The wear of PCD cutting tools in machining granite bars was invested by a turning process. The experiments were carried out under wet condition. Wear volume was measured by optical microscopy and wear morphology was examined by scanning election microscopy (SEM) and optical microscopy. By comparing the flank face, the experiments results show that the PCD tools with coarse original diamond grain size have long life at three cutting speeds, and the tool life of the three PCD tools decreases with the increase of cutting speed. SEM morphology by secondary electron image analysis indicates that the dominant wear mechanism for PCD 010 and PCD 005 is abrasive wear. While for PCD 030, the abrasive wear mechanism is predominant wear in the machining, occasionally some cleavage wear are also observed.
Influence of Thermal Distortion of Mirrors in Laser Resonators on Laser Modes
Authors: Yan Jun Xi , Peng Fang , Peng Yu Feng
Published: November 2012

Taking into account the thermal absorption of laser light on laser mirror surface, the thermal deformation of the mirror substrate was analyzed. Influence of the thermal distortions of the mirror substrate on the laser resonant modes was calculated. The expressions for the field distributions of transverse laser modes with perturbation methods were derived. By comparing them with the elegant Hermite-Gaussian modes where there were no thermal distortions, the intensity profiles of the transverse laser modes versus the amount of the thermal deformation were obtained. The results show that the larger the thermal distortions of mirrors are, the wider the intensity profiles of the fundamental mode become, and the smaller the peak intensity becomes. Meanwhile, the high-order modes will be induced.
Research on Stability Bearing Capacity for Pole and Tower Compression Members with Two Legs Connection
Authors: Cao Xian Lei
Published: November 2012

In order to research the stability bearing capacity of high strength pole and tower compression members, analytical method and numerical simulation method were used to study stability on high strength axial compression members. Researched the impact of different slenderness ratio, different cross-section factors on the bearing capacity; energy relationship was using in analytical method, the boundary conditions issue is simplified according to different end restraint capacity; the failure modes and stability bearing capacity of members were studied by numerical simulation. Compared with the experimental results show that the numerical simulation and elastic theory analytical solution overestimate the capacity of members, but the numerical results have better agreement than the elastic theory analytical solution, which can show the numerical simulation method is right. Experiment method can obtain more secure mechanical behavior of high-strength angle steel member with axial loading.
Subway Station Seismic Structure Dynamic Model
Authors: Liu Ke
Published: November 2012

The state with tense traffic is aggravated constantly with the swift and violent development of our country economy. Surface transport is far from enough to meet the growing demand as urban traffic pressure continued growth. Therefore, subway, as a new way of transportation is developing rapidly in many great cities. Relative displacement value at both ends of the structure component is the main factor affecting the structure of the normal use, also not to be ignored. The results can be used for reference design, construction and safety assessment for similar structure.
Coal Gangue Image Edge Detection Based on Wavelet Transform
Authors: Li Tie Yun
Published: November 2012

An edge detection algorithm is developed for coal gangue images, and the method has two advantages compared with traditional ones. Firstly, multi-resolution analysis of wavelet transform can improve the quality of edge detection. Secondly, the algorithm is faster for real time. Since the threshold directly from the coefficients of wavelet transform, the rate of recognition for coal gangue is highly raised. The experiment results show that the method is an efficient edge detection algorithm for extraction edges from the noised images of coal gangues.
Mercury Processing in PVC Production
Authors: Li Tie Yun
Published: November 2012

Mercury is highly toxic heavy metal pollution attracted the attention of the world. This paper analyzes the situation the main industry in mercury use PVC production. Manufacture of battery, electric light, medical equipment in China. Furthermore, it discusses the details of the best technology the use of mercury emissions reduction and mercury control in that industry. The result is that certain technologies such as low mercury. In PVC industry catalyst, as mercury battery, amalgam substituted Mercury and LED light in the electric light source industry, electronics the thermometer and blood pressure in the medical device industry and so on, reduce mercury able to make full use of and emission reduction in risk mercury pollution to the environment.
Optimizing and Simulating Production Line Balance Based on Human Factors
Authors: Li Pu Hong , Fan Zhi Jun , Zhou Jun , Deng Jian Xin
Published: November 2012

In this paper, combining quantitative human factors load with production line balance (PLB), a set of systematic methodology is developed. Firstly, after analyzed the importance of human factors, the evaluation of those is briefly introduced. Then, a model of PLB considering human factors is developed, whose objectives are to minimize the workers number and smooth the human factors load in one cell/worker. Finally, a piston production line as an example is to optimize and simulate by Quest. The optimizing and simulating results indicate that considering human factor load of each process/task can make workers’ workload more balance and more practical significance than only time.
Mine Detection Technology in Mine Safe Production
Authors: Guo Jun , Gan De Qing , Tan Jing , Ren Chao
Published: November 2012

Shirengou iron mine of Hebei iron and steel group Co., LTD owns annual production capacity of two million tons, which is one of the domestic major metal mines. The study of underground safety detection and monitoring system aims at realizing of mining safety and efficiency. This system prevents mine safety accidents effectively and improves mining production efficiently. The establishment of detection and monitoring system plays the significant reference meaning for promoting monitor of domestic mine pressure disaster and safe management level.
Intelligent Information Processing Based on Classical Logic and Applied Mechanics
Authors: Lu Yan Xin , Zhang Zi Qun
Published: November 2012

Intelligent information processing is one of important research parts of knowledge reasoning as well as methods in artificial intelligence. In this paper, the application of classical logic in artificial intelligence for intelligent information processing is mainly studied, and also accurate definitions of mathematical statements are given with logic rules, thus laying a good foundation for the research field of computer intelligent information processing.
Study of Physics Experiment Teaching System Based on Virtual Reality Technology
Authors: Chen Sheng Jian
Published: November 2012

With the rapid development of the Internet, a remote education assistant system (REAS) is developed to aid the VPETS to be used over the Internet. It is designed in Client/Server mode and is based on virtual reality. It is composed of three parts: the server, the teacher client and the student client. It extends the VPETS to an Internet version and realizes the management of the experiment reports over the Internet. Thus, it can be used for distributed remote teaching and management, freeing teachers and students from the restriction of space and time and stimulating their go-aheadism. It has several advantages: stability, security, and expandability.
Implemention of FIR Filter Based on DSP
Authors: Wang Wei
Published: November 2012

DSP chip is especially fit for digital signal processing. Its main application is realizing all kinds of digital signal processing arithmetic such as clove hitch correlation, all kinds of transforms etc. Realizing digital filters with DSP is an important application. The paper discusses the filter’s software realization based on TMS320C5410 and finished the hardware systems of noise-restraining.The main works accomplished are as following: realization of FIR filter with window function, and realization on TMS320C5410 chip, the result of experiment to make clear.
Nonlinear Adaptive Observer-Based Fault Diagnosis for Satellite Actuator
Authors: Wang Zhi
Published: November 2012

This paper studies the multi-structural fault mode of satellite actuators, and use numbers of unknown parameters as fault indicators. The problem of adaptive state observer design for nonlinear systems with unknown parameters is dealt with by applying Lypunov method. The nonlinear object is firstly linearized into Lipschitz system, and then by analyzing the sufficient condition for asymptotic convergence of the observer, the structure of observer and the adaptive laws for parameter estimation are given. Finally, the adaptive observer is employed to estimate the faults of satellite actuator. Numerical simulation results show that this method is effective and able to quickly detect faults.
Demodulation Method of Distributed Fiber Bragg Grating Sensor Based on Whispering Gallery Mode Optical Microcavities
Authors: Fang Zheng , Wu Wei Cen , Peng Bao Jin , Xu Fei , Zhu Jian Cheng Wu , Xu Ke , Wang Lu , Wu Geng Zhu
Published: November 2012

A new system on demodulation of distributed fiber Bragg grating (FBG) sensor is built which is based on Whispering Gallery Modes Optical Microcavities. In order to eliminate the temperature effect on strian measurement two adjacent FBGs (one for sensing, the other for reference) with similar central wavelength and different lengths as a probe by parallel connection are utilized. Studies have shown that the Whispering Gallery Mode Optical Microcavities with special properties of selecting specific light, when the light couple into the cavity and shocking back and forth, only the specific light can couple out, it can be expressed as: 2πrn = kλ, where r is the cavity radius, n is the refractive index of the cavity, λ is the wavelength of the light coupled out, k is taken a positive integer. Using the fature of Whispering Gallery Modes Optical Microcavities to demodulate the spectral signal of the sensing probe, Combined with the light detector, signal amplifiers, computers and other devices to dispaly the detected strain in real time. Experiment result shows that it is feasible to demodulate action spectrum and the cross of FBG for temperature and the strain is solved. It is testified that the initial establishment of the laboratory system is stable, reliable, and less expensive.
Parametric Modeling for Spiral Bevel Gear Based on PRO/E
Authors: Wu Xiu Hai
Published: November 2012

The author describes tooth profile formatting mechanism of spherical involute spiral bevel gear based on Principles of Gear conjugate, establishes the mathematical model of spiral bevel gears. The precise spherical involute of spiral bevel gears is generated with parametric modeling idea and th secondary development method based on PROGRAM of PRO/E software. Finally, a complete spherical three-dimensional modeling of the involute spiral bevel gear is established, which provides a method of parametric design and manufacturing of spiral bevel gears.
With the Backlash Dynamics Simulation of a Crank-Slider Mechanism of the Internal Combustion Engine
Authors: Bo Shao Jun , Ji Kui , Tian Juan
Published: November 2012

On the basis of flexible multi-body system dynamics theory, we built flexible multi-body system dynamics models which include a backlash, and to a slider-crank mechanism as the research object, we made a preliminary study on the effect on the flexible components and the backlash of the kinematic pair on mechanical system dynamics characteristics. To consider the backlash of the kinematic pair and component of flexible space can show a preliminary research on the dynamic simulation, and focus on the backlash, friction and gravity field to influence in the dynamic characteristics of the system. The simulation results show that, due to the existence of backlash made the two components frequent collision in the process of the stretching, clearance, flexible and friction are closed, make the system nonlinear characteristics increased.
Calculation for 180 Ton Tilting Torque of Converter Based on SolidWorks
Authors: Sun Yan , Lan Yong
Published: November 2012

This paper took 180 ton converter of Anshan Iron and steel Group as example, simulated the process of converter titled holding applying 3D simulation software, calculated the torque of empty converter and liquid steel in initial trunnion position, determined the best position of trunnion , calculated the tilting torque of the converter finally. The method is simple, accurate, graphic and practical, it provides a simple means for the design of converter equipment.
Numerical Simulation of Aluminum Alloy Wheel 13° Impact Test Based on Abaqus
Authors: Yuan Xiao Ming , Zhang Li Jie , Chen Xin Ying , Du Bing , Li Bao Hua , Fan Li Guo , Pan Yue
Published: November 2012

In order to predict the result of impact test in the design phase and reduce the experimental times, which can save cost and shorten development cycle, a finite element model of aluminum alloy wheel 13-degree impact test is established based on Abaqus. All mechanical parts such as the standard impact block, the assembly of the wheel and the tire, the support and bolts are included in the finite element model. The predicted result of finite element analysis and the experimental result agree very well shows the finite element model is correct. The equivalent plastic strain value was also put forward as fracture criterion for the wheel in the impact test which realizes the transition from the qualitative analysis to the quantitative analysis in the development process of aluminum alloy wheel.
Modeling and Simulation of Aircraft Nose Landing Gear Emergency Lowering Using Co-Simulation Method
Authors: Wei Xiao Hui , Yin Yin , Chen Heng , Nie Hong
Published: November 2012

This paper builds dynamical models and hydraulic system models of retraction/lowering of some regional aircraft nose landing gear respectively based on the software LMS VL motion and AMESim. The simulation analysis result was proved to be credible by checking with that of ground test. The peak oil return pressure with the critical damping force can be obtained by analyzing the hydraulic damping characteristic of actuator cylinder during landing gear emergency lowering based on methods of estimation and co-simulation. The results indicate that the damping characteristic of actuator cylinder plays an important role in emergency lowering. Only when the damping force breaks through the critical value, can the landing gear succeed in emergency lowering and being locked. However, the little damping force will result in great impact load while lowering. Thus, damping force should be changed only when emergency lowering.
Study on Numerical Simulation of Bench Blasting and its Elevation Amplification Effect
Authors: Zhang Yuan Juan , Wang Guo Zhong , Zhang Hui Ju
Published: November 2012

In order to research on the elevation amplification effect of blasting vibrational velocity of bench Blasting, Using FEM program of LS-DYNA, based on the simplified blasthole theory, established the single blasthole 140mm finite element model , draw elevation amplification is not unlimited magnified, but first increasing with elevation to certain extreme value , and then reducing along with the elevation .
The Modeling of Rubber Sealing Ring of Fluid Dynamic Pressure and Finite Element Analysis about Stress Based on SolidWorks and ANSYS
Authors: Zhu Juan , Zou Long Qing , Han Shi Jie
Published: November 2012

Hydrodynamic seal ring is based on the hydrodynamic effect of rotary shaft seal, Kalsi sealing ring is the typical type of products, and the design of sealing lip adopts unique waveform structure. Based on geometry analysis of the sealing ring, the 3D model of the ring was established by using SolidWorks software, and then the model was introduced into finite element software ANSYS, which was used to analyse stress for the Kalsi of rubber sealing ring. Through the analysis of the stress of rubber ring, the position of the maximum stress value of the rubber seal in hydrodynamic pressure was wave crest (valley) in the edge of the wave side. When the pressure of seal was 10MPa, the maximum value of stress of rubber sealing was up to 6.54MPa.
The Synthetic Evaluation Method of the Dynamic Performance and Economic Performance of Battery Electric Vehicle Based on Principal Component Analysis
Authors: Chen Ming , Guo Li Xin
Published: November 2012

The dynamic index and economic index of battery electric vehicles are mutual related as well as opposite. So they should be evaluated synthetically. From the analysis of literatures, the maximum speed, accelerating ability and driving range are chosen as the synthetic evaluation index. By the method of principal component analysis, the synthetic evaluation model of the dynamic and economic performance of battery electric vehicle is established. And example is used to explain the application of the model.
Study on Interference Fit of Composite Flywheel Rotor
Authors: Wen Shao Bo
Published: November 2012

The combination of composite rotor and mounting shaft is mainly realized by press fit. In the paper, the initial stress distribution of interference fit between composite rotor and mounting shaft, the centrifugal stress due to high speed rotation are studied systematically. Based on the principles of material failure and detachment constraint at high speed rotation, a calculation method for the appropriate interference is proposed. Finally, specific example is analyzed to verify the feasibility of this method.
Study on Oblique Cam Type Mechanical Torsional Vibrator
Authors: Han Feng Qi , Li Zhi Zun , Zhang De Yuan
Published: November 2012

Vibrator is the key part of vibration tapping machine. In this paper, a kind of oblique cam type mechanical vibrator was designed. The vibrator has the advantages of simple structure and easy manufacturing, and the output amplitude of the vibrator can be adjusted by changing the inclination angle of oblique cam. It is verified by experiments that the process is successful when the oblique cam type vibrator is used to machine big thread holes, and compared with common continuous tapping, the torque of vibration tapping decreases significantly.
Study on Magnetic Suspension-Type Needle Driving Model for a New Knitting Device
Authors: Wu Xiao Guang , Zhu Li , Li Shuang , Wu Yu Qin , Zhang Chi , Zhang Cheng Jun , Fu Jun
Published: November 2012

Based on the magnetic suspension theory, this paper has proposed a kind of suspension-type jacquard needle driving principle, and designed its 3-dimension model method. By making finite element analysis on suspension-type needles, analyzing the experimental data and designing the structure, we can get the relationship among related parameters under conditions of different permanent-magnet thickness and air gaps, which can provide criteria in theory and application for designing on new needle driving principle, control system and needle.
Sorting of Section Contour Data Based on Linear Quadtree
Authors: Liu Jing
Published: November 2012

A method based on the linear quadtree is proposed to sort the discrete data of the section contour. Firstly the contour data are distributed to different nodes of the linear quadtree and the data in the same node are sorted. Then neighbor node search regulations are established to help sort data in different nodes counter-clockwise. Experiment shows that the presented method can sort the data effectively.
The Kinematic Analysis and Simulation of the Large-Scale Linear Vibration Screen
Authors: Du Xin
Published: November 2012

The kinematic analysis had carried on large-scale linear vibration screen, which was based on the theory of multi-rigid-body system and the theory of self-synchronous vibration. According to the dynamic analysis, the displacement equation was established. The vibration screen of motion was decomposed into two vertical directions. It included the vertical direction and the horizontal direction. The model of vibration screen is analyzed in the vertical direction. The dynamic model is established and analyzed by COSMOSMotion software. The paper is consisted of three parts.1) Kinematic theory analysis of double motors on the linear vibrating machine. 2) Dynamic model is built. Fixed frame is replaced with simple parts in order that the model is observed later. Through the motion analysis of the vertical direction, it is concluded that the different stiffness of the spring group was corresponding to the moving distance. 3) It is judged that reasonable range of spring parameters and the system damping, and model parameters will be modified
Dynamic Simulation Analysis of Asymmetric Involute Gear Drive System
Authors: Lian Li Ming , Liu Gui Min
Published: November 2012

The dynamic performance of asymmetric involute gear transmission system is analyzed by the MSC.ADAMS software during the paper. By comparative analyzed with the traditional dynamic characteristics of symmetrical involute straight gear transmission, it can be summarized that the asymmetric involute gear transmission system has better vibration characteristics in the course of transmission.
Measurement of Total Phenolics, Antiradical Capacity and Reducing Power of Extracts of Chinese Medicinal Plants
Authors: Wang Xin Hong
Published: November 2012

P. cocos, B. ochracea, P. lactiflora, A. dahurica were procured and identified and seperately extracted using water (ethanol, methanol) in the ultrasonic cleaner. TPC, DPPH scavenging ability and reducing power (RP) were determined. The results from this study showed that P. lactiflora had the highest content as 18.62 mg GAE/g dw in ethanol, whereas P. cocos contained only 0.37 mg GAE/g dw in water and P. lactiflora exhibits the highest capacity (68.97%) to reduce DPPH in methanol extract with lowest IC50 value of 1.12 mg dw /ml and 1.14 mg dw /ml in ethanol extract at a concentration of 1.6 mg dw/ml. In RP assay, P. lactiflora had highest FRAP values (37.65 mg AAE/g dw in methanol extract), and P. cocos with least activity 3.25 mg AAE/g dw. The RP value has a apparently positive correlation with TPC and DPPH scavenging activity. TPC is remarkably related to its overall antioxidant ability. P. lactiflora could be selected as an excellent antioxidant for functional foods as well as pharmaceutics.