bluuebunny/crossref_metadata_2025 huggingface dataset:
A Self-Sensing Active Magnetic Bearing Based on a Direct Current Measurement Approach
Authors: Niemann Andries , Van Schoor George , Du Rand Carel
Published: September 2013

Active magnetic bearings (AMBs) have become a key technology in various industrial applications. Self-sensing AMBs provide an integrated sensorless solution for position estimation, consolidating the sensing and actuating functions into a single electromagnetic transducer. The approach aims to reduce possible hardware failure points, production costs, and system complexity. Despite these advantages, self-sensing methods must address various technical challenges to maximize the performance thereof. This paper presents the direct current measurement (DCM) approach for self-sensing AMBs, denoting the direct measurement of the current ripple component. In AMB systems, switching power amplifiers (PAs) modulate the rotor position information onto the current waveform. Demodulation self-sensing techniques then use bandpass and lowpass filters to estimate the rotor position from the voltage and current signals. However, the additional phase-shift introduced by these filters results in lower stability margins. The DCM approach utilizes a novel PA switching method that directly measures the current ripple to obtain duty-cycle invariant position estimates. Demodulation filters are largely excluded to minimize additional phase-shift in the position estimates. Basic functionality and performance of the proposed self-sensing approach are demonstrated via a transient simulation model as well as a high current (10 A) experimental system. A digital implementation of amplitude modulation self-sensing serves as a comparative estimator.
Las Casas en el mundo actual
Authors: Zavala Silvio
Published: September 2013

Resumen. — La actualidad de las ideas y de la obra magna del Dominico Fray Bartolomé de Las Casas sigue vigente a través de más de cuatro siglos de historia de América. Análisis de las doctrinas lascasianas contemplando los aportes más recientes de la investigación y en estrecha relación con dicha actualidad.
Corsaires iconoclastes en 1572-1574
Authors: Baudot Georges
Published: September 2013

Résumé. — Les corsaires opérant sur les côtes du Yucatán (Mexique) dans la deuxième moitié du XVIe siècle annoncent par certaines manifestations violentes d'iconoclastie et par le discours tenu aux Amérindiens la contre-culture des sociétés flibustières de la mer des Caraïbes au XVIIe siècle. Selon une documentation tirée des liasses d'Inquisition aux Archives Historiques Nationales de Madrid.
Du pillage au rêve édénique. Sur les aspirations millénaristes des « soldados pobres » du Pérou (1542-1578)
Authors: Milhou Alain
Published: September 2013

Résumé. — Messianismes ,millénarismes, aspirations libératrices se développent dans l'Europe du XVIe s. La découverte enflamme les esprits missionnaires qui associent Nouveau Monde et Fin du Monde. Les trésors du Pérou font rêver au pays de cocagne. Mais la réalité du Pérou des guerres civiles est dure pour les conquérants pauvres. Aussi certains d'entre eux abandonnèrent-ils leurs aspirations d'enrichissement métallique pour rêver d'une terre promise bucolique et pacifique.
Círculos anarquistas y circuitos contraculturales en la Argentina de 1900
Authors: Golluscio de Montoya Eva
Published: September 2013

Resumen. — Se analizan el sentido, la organización histórica de los círculos anarquistas de Agentina (1876-1905), con el objectivo de comprender el alcance de la producción literaria y de la acción cultural encabezada por los mismos.
La « biblioteca criolla » del Fondo Lehmann-Nitsche en el Instituto Ibero-Americano de Berlin
Authors: Lisi Cristina , Morales-Saravia José
Published: September 2013

Résumé. — Description de la « Biblioteca Criolla », conservée à l'Institut Ibéro-Américain de Berlin et constituée par un fonds de 643 brochures populaires réuni par R. Lehmann-Nitsche lors de son séjour à Buenos Aires (1897-1929). Eléments pour une étude de la production, distribution et réception de cette littérature de masses en Argentine au début du siècle.
El Cubilete, histoire d'un symbole : l'avant-projet de décembre 1920
Authors: Thiebaut Guy
Published: September 2013

Résumé. — Un projet architectural, symbole de l'esprit combatif du catholicisme mexicain face au pouvoir politique ; un moment important, entre les conflits hérités du XIXe siècle et la Guerre des Cristeros toute proche.
Chemins, gués et établissements routiers dans l’Ouest de la Gaule Belgique
Authors: Quérel Pascal , Blondeau Rémi , Blondiau Lydie , Clotuche Raphaël , Delepierre Guillaume , Derbois-Delattre Martine , Derreumaux Marie , Lemaire Frédéric , Lorin Yann , Maréchal Denis , Querel Carole , Sévérin Christian , Soupart Nathalie
Published: September 2013

L’étude des occupations de bord de route de l’Ouest de la Gaule Belgique révèle une grande variété de formes et de fonctions, qu’elles découlent ou non de leur intégration dans le réseau routier de l’Empire. Cette appellation regroupe des établissements routiers vraisemblablement officiels, véritables agglomérations ou simples relais, des passages à gué ou des sites portuaires. Nous rencontrons également des installations opportunistes, à vocation artisanale, commerciale et/ ou agricole. Leur «classification» peut se fonder, avec plus ou moins de réserves, sur trois critères principaux : la topographie routière, la morphologie des sites et la nature des mobiliers associés. Dans le cadre d’une approche du monde rural antique, leur étude et celle de la construction des réseaux de communication est incontournable. En effet, les établissements routiers et les chaussées auxquelles ils se rattachent matérialisent, au sein de la cité, le trait d’union entre la ville et ses terroirs. C’est pourquoi il paraît nécessaire d’orienter la recherche de terrain dans la perspective d’une meilleure prise en compte de ces sites et des voies de circulation.
Design of XBT Automatic Projection and Measurement System
Authors: Men Ya Bin , Li Yong Jun , Li Xing Min , Zhang Dong Liang
Published: September 2013

With XBT automatic project and measurement system, the automatically ordered projection and data collection of six XBT measurement probes can be implemented in the non-artificial intervention. In this paper, the data acquisition and control unit designs of the measurement system are introduced. The following functions implemented in this system include remote projection control, proximal status display, and water temperature collection, storage, and transfer, etc. After experimental verification, this system can not only quickly acquire all sorts of special and severe sea hydrologic conditions, but also can reduce artificial projection costs, so that the projection automation and success rate of XBT probes are enhanced.
Analysis on the Structure and Monitoring Techniques of Cardiac Monitoring Equipment
Authors: Xu Hui
Published: September 2013

Objective: The electronic structure of fetal heart rate monitoring equipment as well as fetal heart rate monitoring significance is specifically analyzed for correctly guiding engineering personnel and clinical personnel to know well this equipment, so that the disablement rate and mortality of perinatal infants are reduced through the skillful use of the equipment. Methods: The structural principle of the equipment is comprehensively analyzed, and all items of the monitoring equipment are also studied and interpreted. Results: Engineering personnel are promoted to know well equipment performances and also carry out effective maintenance; clinical personnel eventually become skilled in operating the equipment; pregnant women can receive a normal fetal heart rate monitoring in hospital; the range of the patients receiving the treatment is maximized as much as possible.
The Design and Realize of Wireless Electronic Timer for Track and Field Base on CC2430
Authors: Mao Fei Xia
Published: September 2013

The electronic timer system take CC2430 wireless micro-controller devices and realize time function based on principle of the timer / counter timing and OLED display. Smart network based on zigbee has obvious advantages. Zigbee network supports large capacity, low_power consumption, easy to expand and the self-_organizing network. It has designed the hardware and software structure according t o the technical requirement of time.The display time of 0 to 59 minutes 59 seconds 99 milliseconds, the timing accuracy of 0.01 seconds, the correct timing. We obtain the average time by multiple timers wireless networking.
Discussion on Magnetic Resonance Imaging Failure Analysis Methods
Authors: Guo En Yu
Published: September 2013

Magnetic resonance imaging, as the large imaging equipment the most intensively oriented at science and technology, owns a high utilization rate in hospitals. However, there is a certain failure rate no matter how precise the equipment is. In a huge system consisting of many components, it is possible for all its components to suffer a failure risk. How to locate and remove the failure as soon as possible is the key of the introduction in this paper. Methods: To find the failures, a good theoretical foundation should be available first, which is classified by the author into five aspects. These aspects will be introduced in a planned way in this paper. Conclusion: As long as a good theoretical foundation has been known well and the problems are analyzed carefully, all difficulties can be solved no matter how advanced the equipment.
Research on Traceability Method for Transmission Quality Problems
Authors: Li Lian Zhi
Published: September 2013

In the completion of traceability process of complex automotive transmission quality problems, traceability analysis on quality problems was given according to the actual situation of the gearbox assembly process and the idea of it illustrated, and traceability model about the quality of automotive gearbox assembly constructed based on the contrast analysis. It has shown that: the use of this analysis method was feasible and effective in the traceability process of transmission quality problems. Traceability method based on the contrast analysis is feasible and effective and persuasive in the traceability for transmission quality problems.
A Novel Method on Real-Time Measurement of 2-DOF Motions of Spherical Ultrasonic Motor
Authors: Guo Zhe , Bai Yang , Yi Lin , Guo Ji Feng , Wang Jian
Published: September 2013

Spherical ultrasonic motor (SUSM) is utilized primarily in the assembly sectors, precision machining and active tracking devices. The controllability and accuracy of the SUSM are much concerned in those practical uses. So the sensors which measure the motion of the stator are usually used to build up a closed loop control system. These sensors can detect the position and speed of the ball stator. However, the traditional contact positional detection device which contains photoelectric encoders has the disadvantages of low measuring precision. A novel contactless method which based on an optical sensor, is introduced in the paper. A further illustration including principles of the method, the model of 2-DOF motion of the spherical ultrasonic motor rotor, a set of experiment test-bed to verify the feasibility of the method are presented in the article. The experiment turns out an expectant result and shows the method feasible and significant for application.
Investigation and Simulation of an Alarm Security Monitoring System
Authors: Zerek Amer R. , Ettomi Yosef. S. , Soltan Othman A.
Published: September 2013

Now days he digital systems are very popular and widely used in various engineering areas,especially in monitoring systems, these systems are simple to analysis and design; due to its use logic circuits in their system.This paper treaty of investigation simulation anddesign Alarm Security Monitoring system by using two scientific computer packages known as EWB and Circuit-Maker. The main rezones of using both of these computer packages because they are easy and friendly to use as well as the viability in the market so most of universities and institutes were used.
Research and Design of Tunnel Monitoring System
Authors: Qu Wan Bo
Published: September 2013

The data collection and information management is the core of tunnel monitoring system. Monitoring is the main way during the data acquisition, the article described its role, content, use of instruments and in engineering applications. And for the difficult management and analysis of mass monitoring data about constructing tunnel, by using VC++ and SQL database, the paper design a tunnel monitoring information management and early warning system and realize the functions of information treating such as storage,process,query,analysis,prediction and early warning and automatic output of monitoring reports.
Design of Remote Health Monitoring System Based on Bluetooth and IP
Authors: He Hui , Gong Cheng Ying
Published: September 2013

For better monitoring of the person's health status, this paper designed and realized a remote health monitoring system. The paper describes design principle of each part of the system. The system is based on wireless body area network. It collected health data using C8051F020 MCU. It transmitted data by Bluetooth and IP networks. The dynamic monitoring results displayed on PC, mobile terminals or remote testing center by GIS map. After testing, the system can accurately capture, transmit and display pulse and body temperature. The test results show that the system is stable, easy to operate.
The DSP Design and Implementation of a Directional Audio System through N-Order Approximate Square Root Method
Authors: Xu Yong Chun , Liu Zhe , Guan Jin Yu
Published: September 2013

The signal preprocessing methods in a directional audio system are almost based on Berkatay far-field solution. In this paper, the basic principle and performance of square root method are analyzed, and also a directional audio system based on floating-point DSP is designed with the 4-order approximate square root method. Through theory simulation and practical test, the effect is proven to be satisfactory.
Analysis of Sensitivity and Diffusion Based on Video Fractional Spectrum
Authors: Jin Jian Guo , Wang Le , Wei Ming Jun , Su Jing Jing
Published: September 2013

Based on the video data, the paper analyzed the rotation factor sensitivity and diffusion of fractional Fourier transform. During the fractional Fourier transform process, we adopted three ways to process the video data. Through comparison of them, the second way, which is 4byte cast to 1float, is the most suitable for the sensitivity and diffusion analysis. Sensitivity analysis showed that the fractional Fourier transform rotation factor sensitivity and diffusion analysis showed that when any one of elements plus or minus greater than 0.2 times the transform, it would lead to completely fail to recover the original video data of inverse transform.
Investigation the Influence of DCT Coefficients on the Image Retrieval Performance
Authors: Zhang Shui Li , Dong Jun Tang , Shao Ting Ting , Zheng Xiu Ping
Published: September 2013

According to the important position of DCT in image coding, the research of image retrieval performance based on DCT is advanced. In the paper, we take color descriptors of MPEG-7 as the color image feature, and acquire new image features through giving different weights to the different elected DCT coefficients, Using Euclidean distance as the similar distance measurement to retrieve color images in DCT. Then the relationship between the choice of weight and retrieval performance is studied by experiments, and moreover the retrieval conclusion is analyzed in detail. The result shows it can acquire relatively satisfactory outcome when selecting right weights of the elected DCT coefficients based on a concrete condition.
A Speech Feature Extraction Algorithm Based on the Nonlinear Hopf Cochlea Model
Authors: Xing Jian Guo , Xu Min , Zhu Ji Xiang
Published: September 2013

The performance of speech recognition system is well or not is closely related to the characteristic parameters. For emulating human auditory system, a new method of speech feature extraction based on Hopf filter banks is presented. We modeled the extraction process of the MFCC, and used Hopf filter banks instead of the triangular filter banks. Then, we according the characteristics of Basilar Membranes in the cochlea to adjust the center frequency and bandwidth of the filter. The test speech goes through the Hopf filter banks, multi-dimensional eigenvectors will be obtained. After that, by Discrete Cosine Transformation, we will get the Hopf cepstral coefficients of the speech. Comparing with traditional feature MFCC, the speech recognition systems with Hopf characteristic parameters have better recognition rate and robustness characteristics in low Signal Noise Ratio (SNR) environment.
Design and Implement ComGIS System
Authors: Zhao Ya Wei , Gao Ru , Zhang Tao
Published: September 2013

Digital campus is the embodiment of "digital earth" in the campus and the important part of it. The most important task to construct campus informatization is to realize the digital campus project. Based on such a background, using development tools as MapInfo, Visual Basic and the basic data from ShijiaZhuang Information Engineering Occupational Institute with GIS technology, database technology, the dissertation researches all relevant information resources about school management, teaching and scientific research and so on and establishes the digital campus system with comprehensive anlysis and integration of the data.
Intrusion Detection Engineering Management Based on Optimization of BP Neural Network
Authors: Zhao Jian Hua
Published: September 2013

In order to short the modelling time of BP neural network, this paper designs a kind of genetic algorithm to optimize it. By encoding the individual components, initializing the number of populations, and designing proper fitness function, a binary coding genetic algorithm is provided for BP neural network. And it is used to optimize input variables of BP neural network and reduce its dimension. The experiment is carried out based on KDD Cup 99 data set. The results show that the optimized model has shorter modelling time.
The Recognition of Handwritten Digital Based on BP Neural Network
Authors: Gao Shan
Published: September 2013

The article put forward to new recognition method of handwritten digital based on BP neural network. Its recognition process mainly includes ten aspect: incline correction of handwritten number, edge detection and separation of a set number, binarization, denoising, extraction of numerals, window scaling, location standardization, thinning, extraction of numeral feature and fuzzy recognition based on BP neural network. The test results show that the recognition rate of this method can be over 92 percent. The recognition time of characters for character is less than 1.1 second, which means that the method is more effective recognition ability and can better satisfy the real system requirements.It should be widely applied practical significance for Book Number Recognition, zip code recognition sorting.
Analysis on the Application Principles and Development Characteristics of Multispectral Image Technology
Authors: Lu Lai
Published: September 2013

In this paper, the development characteristics and application principle of multispectral image technology are mainly introduced, the current research of multispectral image technology as well as its application principle in foot testing are comprehensively analyzed, and then its application to current food testing and the specific research dynamics are discussed, and also the latest research dynamics and application of this technology in foreign countries are presented, aiming at providing a good basis for the development of China's food testing technology and promoting this technology to be better applied in China.
The Simulation Design of the Base Station Enclosing Structure's Heat Transfer Model
Authors: Shen Xiao Chun , Dong Bing , Zhao Min Wen
Published: September 2013

According to the independence of the base station, the basic characteristics of the base station are analyzed, and a heat transfer model of communication base station enclosing structure is constructed, and the change of the temperature data in the base station is simulated using computer, and also all program module design flows of computer simulation are provided. Through the comparison between the result of field test on a typical base station and the simulation data, it is learnt that the temperature data simulated in the heat transfer model of the base station enclosing structure is similar to the average temperature within the measured base station.
Study on the Smart Handheld Wireless Oscilloscope
Authors: Jiang Jun , Qu Huan , Tian Shu Lin
Published: September 2013

As the digital acquisition system is featured by increasingly higher technical targets and more complicated applicable conditions, the traditional digital oscilloscope has become incapable of meeting the requirements of real-time processing of sampled data and waveform display on one hand, and unqualified for field test in hard risky conditions on the other. This paper aims for comprehensively enhancing the digital oscilloscopes data processing, image display, human-machine interface and portable adaptability. To that end, it approaches the system composition of improved oscilloscope, and renders a chance to wirelessly connect the oscilloscope with any of the Smart Handheld Devices with Android operation system through the added wireless data interactive channel, which forms a smart handheld wireless oscilloscope. Such oscilloscope adopts the divisional coordination between data acquisition system and Smart Handheld Device to greatly improve data processing, waveform display and HMI, and realize wireless operation of remote test as a result.
Application of Face Detection Technology in Automatic Sweep Robot
Authors: Li Gu Xiong , Huang Kai
Published: September 2013

One being developed automatic sweep robot, need to estimate if anyone is on a certain range of road ahead then automatically adjust running speed, in order to ensure work efficiency and operation safety. This paper proposed a method using face detection to predict the data of image sensor. The experimental results show that, the proposed algorithm is practical and reliable, and good outcome have been achieved in the application of instruction robot.
Study on Knowledge Management in Process Optimization of Manufacturing Enterprises Based on Data Mining
Authors: Xiong Yuan Bin , Zhong Xue Fei
Published: September 2013

With the development of the economy and improvement of science and technology, the management of all kinds of knowledge becomes more and more important for enterprises, and the blueprint of knowledge economy is displayed in front of us. The creation and development of knowledge reduces dependence of the society on natural resources greatly. Traditional production factors including labor, land and capital have gradually lost their dominant position, while knowledge resource has become the primary factor of scientific and technological innovation. Therefore, knowledge is the most important resource of enterprises. Using data mining method to find and collect the implied and valuable knowledge from enormous data and starting from revenue maximization of enterprises and participants, the paper uses the multi-player game with mixed motives, proposes the motivation mode and adopts Nash equilibrium as the starting point to observe how to stimulate the knowledge-sharing passion of the employees, which has great theoretical and practical significance.
The Discretization Algorithm Based on Rough Set and its Application
Authors: Shi Zhi Cai , Xia Yong Xiang , Yu Chao Gang , Zhou Jin Zu
Published: September 2013

The discretization is one of the most important steps for the application of Rough set theory. In this paper, we analyzed the shortcomings of the current relative works. Then we proposed a novel discretization algorithm based on information loss and gave its mathematical description. This algorithm used information loss as the measure so as to reduce the loss of the information entropy during discretizating. The algorithm was applied to different samples with the same attributes from KDDcup99 and intrusion detection systems. The experimental results show that this algorithm is sensitive to the samples only for parts of all attributes. But it dose not compromise the effect of intrusion detection and it improves the response performance of intrusion detection remarkably.
Cheating Prevention Method in Visual Cryptography by Using Random Grids
Authors: Lin Hong Wei , Yang Xue Song , Wang Shu Wen
Published: September 2013

The traditional cheating prevention is usually based on visual cryptography (VC), in which the constructed image is bigger than the secret image because of the pixel expansion. In this paper, we studied the cheating problems in visual secret sharing (VSS) by random grids (RG) which can prevent the cheating activities with no pixel expansion. We considered the attacks of collusive cheaters who may deviate from the scheme in any way. We presented the cheating method and applied it on attacking existent n-out-of-n VSS scheme based on RG. Then we proposed one cheat-preventing scheme that can prevent the cheating activity upon.
Research of Secure Data Aggregation in Internet of Things
Authors: Sun Fu Zhao
Published: September 2013

Internet of Things has received more and more attention, due to a wide range of potential applications. In this paper, we propose a secure data aggregation framework for the Internet of Things. It is based on fully homomorphic encryption. Moreover, this is a form of encryption where any specific algebraic operation performed on the raw sensor data is equivalent to the same algebraic operation performed on the cryptographic sensor data.
Method of Data Collection in Requirement Analysis Phase Based on ERP
Authors: Yao Wei
Published: September 2013

During the process of implementing enterprise informationization, the main content is the system of ERP, collecting data is very important in the preliminary requirement analysis stage. Data collection is not only theory problem, but also practice problem. In this paper, the author focuses on the topic research, aiming at some problems existing in the process of data collection, and puts forward the new method of data collection, trying to improve the quality of data collection.
Analysis of the Universal Embedded Database Model Based on TPMS
Authors: Li Jing , Zhang Yu Jun
Published: September 2013

In order to make the embedded system without large memory capacity and embedded operating system can use database to manage data for itself, this paper puts forward a universal model of embedded database combining the characteristic of embedded database. It studies the structure of the model and applies it to tire pressure monitoring system (TPMS). It discusses the hardware design, file frame, physical structure and logical structure of the embedded database of TPMS. Then it sets up a reliable, real-time, convenient database for TPMS. This database will manage the data which come from TPMS effectively when automobiles are running. It makes TPMS can analyze the status of driving car scientifically and provide reliable tire information.
Research and Implementation of Embedded Linux System Power Optimization
Authors: Wang Jian Qiang , Yuan Fei Yun
Published: September 2013

This paper firstly discusses the techniques to optimize power consumption of the embedded operating system, and then optimizes power consumption of embedded Linux by adding DVS (dynamic voltage scaling) module and modifies the scheduling function in the standard Linux kernel. Finally, take a comparison test on arm920 platform. The test results show that: the power optimized Linux can effectively reduce the power consumption of the whole embedded system.
Research of GMR-1 in GEO Satellite Mobile Communications
Authors: Wu Cong Ming , Shi Yang , Xu Zi Ping , Cheng Yu Xi
Published: September 2013

At present, technology related to GEO is wide used in the civil and military fields. In this paper, firstly, the generation of GMR-1 was introduced and then a detail illustration of how to comprehend the GMR-1 system and its structure was made by comparison between GMR-1 specifications and GSM standard. These two specifications were compared in terms of the physical channel, logical channel, bursts, mapping and so on. The analysis indicates that GMR-1 modified the lower layers for the satellite channel. In the end, we are looking ahead to the future of the GMR-1.
On an Embedded Terminal Application of Cyber Source Allocation Scheme
Authors: Chen Yang
Published: September 2013

This paper expounds the rational allocation of the limited network bandwidth resources in between the embedded terminal application, and puts forward a kind of embedded terminal application of cyber source distribution protocol. According to the application characteristics, classify network packets; combined with the available bandwidth real-time detection, add different delay time for each type of data packet; according to the size of delay, schedule data packet. The protocol is applied to the actual IP set-top box, at the same time it is running HTTP streaming media applications and downloads the FTP application environment, to give priority to ensuring the application of streaming media playback smooth. The experimental results show that, the protocol in the application environment can give priority to the needs of users about application of high bandwidth network, and achieve a reasonable distribution of cyber source in embedded terminal.
Study on the Secondary Structures of Long Primary Double Sided Linear Motor
Authors: Wang Nan , Shi Li Ming , Du Yu Mei , Zhang Rui Hua , Jin Neng Qiang
Published: September 2013

Long primary double sided linear motor drive technology is applied in electromagnetic aircraft launch application. Due to the structure of the secondary board, there is a great room for the improvement of electromagnetic thrust for the long primary double sided linear motor. This paper studies mainly the secondary structures of the long primary double sided linear motor. The results of this paper lead to a better performance of the motor by the transformation of the structural design of the secondary board.
The Cracking Research of Cladding Layer in Arc Cladding
Authors: Cui Yan , Mo Gui Yun , Li Tian Bao , Wang Jin Yong
Published: September 2013

The developing process of cladding is always accompanied by the crack problem of cladding layer. This paper analyzes the defects position of arc cladding and expounds the causes of crack and furthermore puts forwards a solution which adds rare earth elements in the cladding powder . This will well effectively solves the problem of cladding layer cracking.
Design and Development of Cushioning Material Database Based on Cushioning Material
Authors: Cao Le , Li Miao
Published: September 2013

By directing at wide varieties and nonlinearity of cushioning characteristic curves of cushioning packaging materials, mathematical model of cushioning material curves was established on the basis of test data; JBuilder 2006 and SQL Sever2000 were utilized to develop cushioning material database. This database is equipped with data fitting, storage and management functions of various cushioning materials, which can contribute to digital management of packaging lab.
Study on New Tea Soap Based Chelating Agent Synthetic Materials and the Repairing Effect of Heavy Metal Pollution in Environment
Authors: Li Bang Jiang , Wang Long Chang , Long Ming Zhong
Published: September 2013

By water extraction, precipitation method we can extract tea saponin from tea seed cake and design and synthesize the new green tea soap based chelating agent in the synthesis design (tea saponin sodium sulfate). Study on the surface properties, the surface tension is lower than the tea saponin, and the value of HLB, foaming ability and foam stability are better than that of tea saponin. At the same time, considering the effects of heavy metal rate oscillation time, chelating agent concentration, pH and ionic strength on the chelating agent to remove, the results show that with the increase of oscillation, the removal rate and time of heavy metal concentration increase, and decrease with the increase of ionic strength and pH, thus concluding the optimum process of the removal of pb2+, cd2+ ions: the oscillation time is 12h, the mass fraction is 7%,the concentration of Ca (NO3)2 is 5.0, 0.01mol/L. Under this condition, ion removal rate of pb2+, cd2+ ions is the highest. The removal rate of tea saponin sodium sulfate ion on Cd2 is higher than Pb2 + ions, and these two kinds of tea saponin sodium sulfate ion removal rate are higher than that of tea saponin, improvement effect is obvious especially for Pb2 + ion removal rate.
Study of the English Translation of Polymer Composite Materials
Authors: Li Gang
Published: September 2013

Synthetic polymer material is made of polymer composite materials. Plastic, rubber, chemical fiber, building glue and paint are mainly involved in civil engineering. The basic components of the polymer materials are synthetic polymers, which is referred to as superpolymer. Materials of civil engineering made from the polymer or the traditional material modified the preparations are traditionally known as the chemical building materials. Chemical building materials is more and more widely applied in civil engineering, playing an important role in various decorations, waterproof, anticorrosive adhesive, as other civil engineering materials can not be replaced by. The English translation of critical polymer materials is vital, and the translation quality has a direct impact on people's understanding of it. In this paper, using the method of Nord's function plus loyalty translation theory, the author discusses the translation problems of polymer materials, and provides constructive and theoretical basis for translation practice.
Design and Analysis of a Novel E-Core Axial Field Flux-Switching Permanent Magnet Machine
Authors: Zhang Wei , Lin Ming Yao , Hao Li , Tai Liu Chen , Pei Zhao Gang
Published: September 2013

A simple analytical method is developed to design novel axial field flux-switching permanent magnet (AFFSPM) machines in terms of back electromotive force (back-EMF) and cogging torque. The machine is proposed with E-shaped laminated segments in the stator. Some major parameters are originally designed with reference to those of a 12/10-pole U-core AFFSPM machine, including the rotor tooth width, the split radio of the inner diameter to outer diameter of the stator and the stator parameters. In this paper, they are investigated and optimized for attaining essentially sinusoidal back-EMF and low cogging torque by 3-D finite element method (FEM). Compared with 12/10-pole AFFSPM machine, it is shown that the volumes of magnets are almost reduced by 30%, while the similar output torque at the rated current can be obtained, and the ratio of the mutual-to self-inductance is largely reduced, which indicates the proposed motor has better fault-tolerant capability.
The Inversion Analysis for Mechanical Parameters of Dam Based on the Artificial Fish Swarm Algorithm
Authors: Yang Guang , Liu He Zhi , Zhu Kai , Liu Dong Sheng
Published: September 2013

The artificial fish swarm algorithm adopts a new top-down way of think-ing,starting from the realization of individual behaviors of artificial fish and then re-aching the global optimum of the group through the local optimization of fish individuals of the group.Based on the finite element analysis softwareMSC.Marc, this article makes inversion analysis for mechanical parameters of dam.By combining the monitoring data of a dam,inversion analysis [ is made on the elastic modulus of the dam body,dam foundation,both dam shores and the fault fracture zone by using the artificial fish swarm algorithm.Results show that using artificial fish swarm algorithm to make inversion analysis on dam mechanical parameters not only has faster con-vergence rate but also have higher accuracy.
Analysis and Performance Evaluation of a High Thrust Force Density Segmental Stator Linear Switch Reluctance Machine for Low Cost Conveyor Applications
Authors: Wang Dao Han , Wang Xiu He
Published: September 2013

This paper presents a novel linear switch reluctance machine (LSRM) with segmental stator. The principle of the presented machine is given and compared to the well-known teeth type linear switch reluctance machine. Because the presented machine incorporates a simple concentric winding and concrete ferrite-magnetic segmentations, it features unique magnetic circuit compared to teeth type linear reluctance machine. It is found that the presented linear reluctance machine gains favorable superiority over the teeth type linear reluctance machine in terms of high force density, high reliability and low cost. Different topologies of the presented machine are given and both their merits and demerits are discussed.
Simulation and Optimization Design of Inversion Six-Bar Linkage on Loader
Authors: Zu Ying Li , Wei Jin
Published: September 2013

Based on the combination of the virtual prototype technology and dynamics simulation analysis software ADAMS of mechanical system, parameterized model ZL50 wheel loader equipment is established. According to the characteristics of the loading operation of equipment, with 18 parameters of the hinge point of inversion six-bar linkage as design variables, with loading operation performance index as the objective function, considering the structure and avoiding movement interference for constraint condition, multi-objective optimization design for the virtual prototype model of articulated point position is calculated.
Experimental Study on the Reverse Cleaning and Regeneration of Diesel Engine's Metal Mesh Filter
Authors: Zhang Yao Wu
Published: September 2013

This paper puts forward the suitable conditions of high sulphur fuel oil in China wire mesh particle trap counter blowing regeneration technology. The regeneration process is characterized by the filter body is separated from particle combustion, solve the problem of broken filter body and burning-out, at the same time remove the not burning material in the trap. By filtering body regeneration experiment made the counter blowing regeneration scheme, design and optimization of the diesel exhaust particulate trap wire mesh filter body and counter blowing regeneration system. Finally by engine bench test, test the diesel exhaust particulate after-treatment device influence on power performance and fuel economy of diesel engine, the jet pressure, jet time and scavenging time on back and collection efficiency effect.
Thermal Analysis of FSAE Racing Brake Disc Based on Algor
Authors: Yu Shan Hu , Li Jie , Zhang Nan Feng , Jiang Ming Lei , Liu Ze Peng , Zhu Gang
Published: September 2013

The design of racing brake disc is one of the keys of the car braking system. The initial design of brake disc is based on the overall parameters and design requirements of South China University of Technology FSAE racing car. According to the mechanism of friction heat and friction heat distribution, a simple finite element model of temperature field model, boundary conditions and, using Algor to do a simulation of transient temperature field plate, the front and rear brake discs to determine the final size is analyzed.
Force Prediction Including Hysteresis Effects in a Short-Stroke Reluctance Actuator Using a3d-FEM and the Preisach Model
Authors: Vrijsen N. H. , Jansen J.W. , Lomonova E.A.
Published: September 2013

Magnetic hysteresis effects, present in the force of an E-core reluctance actuator, are examined by simulations and measurements. Simulations have been performed with a 3d finite element method (3d-FEM) and a Preisach model, which is extended with a dynamic magnetic equivalent circuit (MEC) model. Both simulation methods are first examined on the prediction of the magnetic flux density in a closed-and open toroid for dc-and ac excitations. Finally, both methods are used to predict the force of the E-core reluctance actuator, which is compared to ac force measurementsperformed with a piezoelectric load cell.
A Study of Evaluation Model of Human Errors at Risk for the Petroleum Operation
Authors: Liu Bao Fa , Liu Shang Hai
Published: September 2013

Because the petroleum production is larger investment, higher risk, and the traditional risk evaluation tools usually gave an evaluated value only, which being not in accord with the actual, the paper introduces the ideas of Value at Risk into the Human Errors (HEs) quantification for the petroleum operation, and develops the the model of Human Errors at Risk (HEaR) to quantify the HEs. The model can in detail depict the actual risk statuses of production system under different risk conditions.
Research on Electronic Products Recycling
Authors: Zhao Yu
Published: September 2013

This paper summarizes the characteristics of the waste electronic products,and its classification, comparative analysis of the domestic and foreign current development in the reverse logistics of waste electronic products. The article summarizes the foreign countries, especially Japan's successful experience and analysis of domestic problems exist in the recovery part .The paper proposes a mode suited to China's development of reverse logistics of waste electronic products, while establishing a network model of the recycling of waste electronic products, and examples of the model is validated.
Earth’s Health Model Based on System Dynamics
Authors: Lin Yin , Lu Kai , Li Ying
Published: September 2013

The earth is a complex network. This paper establishes a system dynamics network to measure the earths health.We set up a 3 layers network (earth layer, main system network and subsystem network). The earth layer reflects the global health condition directly. The main system network includes 4 interrelated elements (population, economy, resource and environment). The subsystem network includes elements in detail. We build the network based on the system dynamics, taking internal and external dynamic relations into account. We use the Simgua software to test and simulate our model. Parameters in global model are determined by historical data. Then, we simulate the global model and analyze the earths health trend. Besides, we introduce an evaluation model to forecast the tipping point and estimate the earths health. We get a fitting equation by multiple linear regression. This equation predicts and the tipping point. Health conditions are divided into 4 levels according to. Last, we use the Monte Carlo methods to analyze the sensitivity of nonrenewable resource and get that nonrenewable resources change makes a greatest impact on Industrial output.
Study on the PNN Neural Network Inversion Based on the Integration of Seismic Multi-Attribute with Frequency Division RGB - Fuyu Oil Layer in Gaotaizi Area, Songliao Basin is Taken for an Example
Authors: Zhang Xin Rong , Fang Shi , Liu Jin Ping , Yang Mao Xin
Published: September 2013

Fuyu oil layer in Changyuan of Daqing is a strategic area for Daqing oil field to increase and stabilize production at present, but its reservoir is structured mostly by riverway sand bodies. The sand bodies are thin and change with complexity, so they are difficult to identify. Through PNN probability neural network, and combined with the seismic multi-attribute and earthquake frequency division data, wave impedance inversions are implemented, and the maximum correlation coefficient is 0.517 if a single attribute is described and it is raised to 0.773 by linear weighting, and also 9 independent attributes are used for PNN network training so that a more complex nonlinear relationship is obtained. Then, the correlation coefficient continues to increase until 0.869, so that the spatial distribution characteristics of the sandstones in the study area are accurately described. This indicates that the PNN neural network inversion based on the integration of seismic multi-attribute with frequency division RGB can play an obvious effect in the areas of thin and changing sand bodies, and can meet the needs of the oil field exploration and development.
Construction Enterprise Core Competence Management Research Based on Qualitative Simulation
Authors: Qian Zhang
Published: September 2013

This paper proposes causality model of qualitative simulation for construction enterprise core competence; then knowledge representation and methods of conversion for variable, filtration methods of qualitative branches and steps of qualitative simulation are designed; additionally results of simulation are analyzed. The simulation results can be intuitively represented by curve in which elements of construction enterprise core competence and the overall level change with the internal and external conditions. Peak value and valley value of construction enterprise core competence fluctuation curve provide decision support for manager to develop and timely adjust enterprise development strategy. Finally a simulation example is given to explain simulation process and result analysis.
Analysis of the Operational Risk Controls in the Electric Power Plant
Authors: Wang Chun Ying
Published: September 2013

Thermal power generation is a complex production system, and electric operation is an important work. The generating capacity of Zhangjiakou power plant is 2400 thousand kW, ranking the third in our country. Its technology and equipment and the process are representative. In order to ensure the safety of the electrical operation, on the basis of analysis of accident cases for more than ten years, using the method of system analysis, this article summarizes the risk factors and control measures of electrical operation. With strict implementation, the electrical accidents of our planet will decrease year by year.
On Perfecting Construction Hoisting Machinery Inspection Law
Authors: Shan Chong Fei
Published: September 2013

Building inspection on heavy machinery is an important link in the safe use of the equipment and is directly related to the safe use of equipment. But this link is the most ambiguous in the current building lifting equipment supervision. Whether it is "special equipment safety supervision regulations" or the order of the Ministry of Construction, prescribed inspection of heavy machinery to the construction site are not specific and lack operability. So it is necessary to standardize the inspection regulations and administrative status, inspection methods and management mode. Therefore, this paper discusses the measures to improve the problems and laws existing in our country's construction hoisting machinery inspection in order to promote the site construction hoisting machinery inspection for the development of industry.
Analysis of Resonance Transformer Design Based on Electronic Linear Accelerator
Authors: Peng Hong Juan
Published: September 2013

Resonance transformer design is a large-scale and complicated management process. With the improvement of science and technology in China, and the application of modern professional, factory, mechanical and information means provides sufficient science and technology basis for the transformer design level. Grounded in the environment of electronic linear accelerator, this thesis could change the current situation of imperfect transformer management. This thesis elaborates the background and significance of electronic linear accelerator in resonance transformer design, proposes the purpose and main content mode of resonance transformer design, gives a detailed introduction of the frame and functions of all modules of PSCAD simulation experiment, and finally makes relevant discussions of the application of resonance transformer.