bluuebunny/crossref_metadata_2025 huggingface dataset:
Estudio y composición de nueve estatuillas chinas y japonesas del Museo Nacional de Ciencias Naturales aportadas por D. Juan de Cuellar en el siglo XVIII
Authors: García-Guinea Javier , González-Alcalde Julio , Nieto Codina Aurelio
Published: September 2013

Se presenta un estudio histórico y de caracterización química y molecular por técnicas no destructivas, ESEMEDS y Raman, de nueve esculturas de pequeño tamaño, fabricadas en esteatita, antigua denominación de minerales blandos y untuosos como talco y pirofilita, conservadas en el Museo Nacional de Ciencias Naturales (MNCN). Se concluye que dos especímenes son de pirofilita y procedentes de Japón, mientras que las otras siete son de talco con ornamentación de procedencia China. Las muestras de talco de China tienen calcita con algo de cobre, típica de metamorfismo de dolomías, mientras que las pirofilitas tienen Pb, Fe, Cl, As, P, S, Na y Ca, elementos químicos de origen hidrotermal de rocas félsicas más característico de Japón. Las estatuillas fueron aportadas al RGHN desde Filipinas, en el siglo XVIII, por D. Juan de Cuellar, expedicionario y botánico español, de quien se incluye un recorrido por su biografía y actividades científico-económicas. Estas piezas son la expresión de la tendencia al coleccionismo de objetos orientales imperante en la época de la Ilustración.
Design of WSN Nodes Drivers Based on Embedded Linux
Authors: Ju Jin Wu , Gao Xiang
Published: September 2013

WSN node is a key equipment to build wireless sensor networks.In this paper the network node framework of the wireless sensor based on the CC1101 is introduced. The hardware interface and characteristics of CC1101 are analysed.The process of achieving its driver in the embedded Linux operating system is addressed in detail, which includes chip initialization, interrupt processing, and interface with the upper layer protocols and so on.
The Test and Research of Starting Speed Base on LabVIEW and Infrared
Authors: Xiong Xiao Wei
Published: September 2013

In order to study the starting speed athletes sprint speed ,the paper design a distributed monitoring system. System sample data of speed by micro-controller and peripheral circuits , data of test point speed transmit to the PC through the RS 485 bus,programmed using LabVIEW software on the PC side realize data storage of detection each point speed, processing, display and remote monitoring. The micro-controller and virtual instrument technology combined with the application, to overcome the conventional athletes speed detection shortcomings of the prevailing and difficult to remote observations. Experimental results show that the system is low cost, high accuracy, stable and reliable operation.
Realization of Algorithm for Wideband Sound Source Localization in Video Monitoring System
Authors: Li Lei , Su Yong Gang , Tian Shen , Li Yong , Li Zhi Tong
Published: September 2013

Video security monitoring has become the focus of social research and development; however, since the camera cannot automatically rotate, there is a blind spot in traditional security monitoring. Considering the abnormal often happens accompanied by corresponding sounds (e.g., where there is an explosion , there will be the sound of explosions), therefore, for compensating the blind spot , the auditory function can be added to the camera to track the direction of sound source automatically which requires the two-dimensional (2-D) localization of sound source to complete , at the mean time , the localization algorithm should be capable of tracking all of the source signals ,as well as be real-time to make the video tracking to be achieved by turning the camera toward sound source timely. This paper realizes the localization of wideband speech signal in video monitoring by using modern signal processing method, linear microphone array, positioning thought based on time delay estimation, frequency domain transform, and spectrum-search method based on energy value. Both the early simulation and late DSP-based embedded system platform have verified the feasibility of the method.
Analysis of Circuit Junction of Automatic Fire Alarm System
Authors: Yu Meng Lu
Published: September 2013

Security problem is the main factor restricting economic development of architecture. Fire accident, in particular, results in serious casualties and losses. As building structural layout is more diversified, there are more and more assembly forms of internal structures and facilities. Automatic fire alarm system is the key in building design and construction. The thesis first of all makes an analysis of the current construction fire accident, points out the application function of fire alarm system and analyzes automatic fire alarm system circuit junction, hoping to contribute to further studies.
The Design of C8051F120-Based Remote Island Meteorological Measurement System
Authors: Men Ya Bin , Feng Lin Qiang , Cheng Fang Lin , Zhang Yi Fei
Published: September 2013

The measurement of meteorological elements is of great significance in marine environment monitoring. Air pressure and air temperature/humidity are important parts of marine meteorological observation. An application example of the integrated meteorological measurement system composed by new pressure sensor and temperature/humidity sensor in remote island meteorological measurement is introduced, and also the basic characteristics of the two sensors and also the hardware interface design and software control method of microcontroller C8051F120 are described, and finally RS-485 bus interface circuit design and software design as well as its integration method are provided. Practical application proves that this system features high accuracy, low power consumption, convenient maintenance, and high reliability.
Inland Ship Recognition Algorithm Based on Neighboring Static Region Substitution for Background Updating
Authors: Wang Zhe Yue , Xie Lei , Yan Zhong Zhen , Yan Xin Ping
Published: September 2013

Considering the particular scene that the moving ships in Inland River are surrounded by the nearly static water, this paper presents a method that updates the background by adopting the neighboring static region to replace the dynamic areas. By making the difference between the current frame and the background image to get the foreground area, and using the region growing algorithm to shape a complete ship region, we can get the coordinate, the center point and the direction of its movement. To obtain its mean gray value to replace the foreground dynamic region, we choose a static adjacent background at front-end of the ship. Then we adopt a variable weight method to update background in order to prepare for the next image proceeding background difference calculation. As the loop goes on, we can make fast and accurate ship image identification from the surveillance streaming media.
Research on Adaptive Image Inpainting Approach Based on TV Model
Authors: Zhou Min
Published: September 2013

For The fix algorithm of TV model caused the staircase effect, iterations low efficiency and produce false edge drawback when gradient only along the perpendicular direction to diffusion. The paper propose an improved K and P parameters based image restoration algorithm. The combination of isotropic and anisotropic diffusion model, used in a smaller area of the pixel gradient isotropic diffusion, that will improve the speed of iteration, and a larger region in the pixel gradient value take the P-Laplace operator to anisotropic diffusion to avoid the staircase effect in the the image flat areas repair. Experimental results show that the algorithm has good repair and good convergence.
A Relationship between Parameters of Two Representations of Discrete LTI ARMA System Model and the Corresponding Device Fingerprints
Authors: Yuan Hong Lin , Bao Zhi Hua , Yan Yan
Published: September 2013

Device fingerprints has potential to identify the source of digital communication information. Although identifying transmitters with their fingerprints remains an arduous question, fusion identification with multiple device fingerprints is a feasible methodology. In this paper, a relationship between parameters of two representations of discrete-time linear time-invariant (LTI) autoregressive moving average (ARMA) system model is derived which has definite physical meaning. With the relationship, a novel linear device fingerprints is proposed which may enlarge the inter-class distance of the transmitters to be identified. The proposed device fingerprints can be used for fusion identification of network devices and the corresponding ARMA systems especially for that with slight differences.
A Novel Channel Estimation Algorithm for Underwater Acoustic Systems
Authors: Wu Lei Lei , Cheng Nai Ping
Published: September 2013

To decrease the computational complexity and improve the performance of channel estimation for underwater acoustic (UWA) sparse multipath channels, a sparse least square (SLS) channel estimation algorithm is proposed. The proposed algorithm combines advantages of both generalized akaike information criterion (GAIC) estimation and estimation using effective order of channel impulse response (CIR). Known pilot data is used to estimate effective order of CIR and then the position of taps of CIR is estimated. In order to adapt to the environment with low SNR and reduce the dimension of signal space, adaptive threshold is also used. Simulation results indicate that the proposed method has good performance of channel estimation and low complexity.
RFID Tags Collision Resolution on Physical Layer by Using C-Means Clustering Algorithm
Authors: Tan Yuan , Zeng Yu , Ling Yong Fa , Wei Hao
Published: September 2013

A traditional Radio Frequency Identification (RFID) system only resolves collisions of multiple tags on the Medium Access Control (MAC) layer, discarding the signals of the physical layer. Recently different groups started to pay attention on slots with colliding RFID tag signals, and coping with collisions on the physical layer, however. We proposes that using C-means clustering algorithm to analyze signal constellations of two colliding tags responses, to recovery from collisions of two tags on the physical layer and decoding their ID information successfully. This design uses low frequency (LF) 125k Hz carrier wave, and is also suitable for high frequency (HF) communication situation. Additionally, an error performance analysis with different SNR is shown. Based on performance simulations results, we demonstrate this approach can resolve collisions of two tags effectively in a slot on the physical layer and get a lower error probability.
Research on a Five-Phase In-Wheel Permanent-Magnet Synchronous Machine
Authors: Zheng Ping , Sui Yi , Yu Bin , Wu Fan , Wang Peng Fei
Published: September 2013

This paper discusses the design of a fault-tolerant Permanent-Magnet Synchronous Machine (PMSM) for electric vehicles. The investigated machine is a five-phase in-wheel machine with 40 slots and 42 poles. The electromagnetic performance of double layer and single layer windings are compared based finite element analysis. The magnetic isolation abilities of the two winding types are also compared. Finally, a 12kW five-phase fault-tolerant machine which is able to meet the demand of electric drive system is designed and evaluated.
Research on Computer Wireless Network and Information Security
Authors: Guo Wen Zhan
Published: September 2013

with the rapid development and wide application of wireless networking technology, Information security issues are increasingly prominent manifested by more and more attention. The article describes the schema of the data monitoring platform separate from the data layer, network layer and presentation layer three levels,focuses on platform of intelligent back-end database structure, and proposed specific measures to ensure platform security,to ensure the information security of computer networks, so as to give full play role of computer networks.
Discussion of Information Exchange Process of Electrical and Mechanical Open System
Authors: Wang Qing , Jian Hui Hua
Published: September 2013

Electrical and mechanical engineering is the main object of industrial science and technology research, which greatly promotes the reform and development of industrial science and technology. Open system is a term widely used in the fields of computer system structure, computer system, computer software and communication system, as well as the main representation of multi-function application of information technology. This thesis first of all makes an introduction of the application characteristics of open system. It then makes an analysis of the development trend of electrical and mechanical engineering and the process of electrical and mechanical open system information exchange based on it, so as to contribute to the following researches.
Characteristic and Magnetic Field Analysis of a Novel Ironless Halbach Permanent Magnet Linear Synchronous Motor
Authors: Zhang Lu , Kou Bao Quan , Zhao Bin Chao , Xing Feng
Published: September 2013

This paper proposes an ironless permanent magnet linear synchronous motor (ILPMLSM) with a novel Halbach array. The magnetic flux density distribution of the Halbach array is solved analytically by using the equivalent magnetization intensity method. The expressions of no-load back-EMF and electromagnetic thrust are obtained. All of the results are verified by finite element method and they are coincide very well.
Discussion on the Digitalized Transformation Trend of Computer Network Communication System
Authors: Ma Wei Hua
Published: September 2013

Computer network is an advanced platform of communication transmission, in which the different transmission modes such as point-to-point and point-to-multipoint can be implemented by relying on the wide coverage scope of the Internet. In this paper, the functions (e.g. data processing, signal transmission, and comprehensive control) of network communication are firstly introduced, and then the digitalized transformation trend of computer network communication system is analyzed, and finally the comprehensive measures for the construction of new communication system are proposed. Hopefully, this paper can play a help in the further studies.
Component Analysis of GPRS Traffic Based on LLC Frames from a Live Network
Authors: Wang Huan , Lei Zhen Ming , Gui Xiao Lin , Wu Xiao Long
Published: September 2013

GPRS is the dominant mobile Internet access in China. However, the nature of GPRS traffic characteristics remains unexamined for many reasons. In this paper, we present observations at both LLC-level and cell-level from passive monitoring of more than 2700 GPRS/EGPRS cell sites connected to the same SGSN at Gb interface. The traffic traces are from a major China ISP in one urban area of Northern Province during an ongoing 24 h period in August 2012. We found that user traffic averages at about 95% of overall traffic in both directions. Furthermore, we defined a cell-time record to measure the dynamic utility of radio resource and found that most cell sites have low traffic at most time, with the growth of total traffic load, the proportion of signal traffic declined correspondingly. All the conclusions in the paper are meaningful for researchers, network operators, and other members of the GPRS community.
The Design of Intelligent DNS Server on Campus Network
Authors: Wang Yu Lin , Wang Jin Heng
Published: September 2013

Multiple export link in campus network, The common DNS server analyze campus network Web server domain to education network IP address, there is no good use of multiple export link. According to the users network, the intelligent DNS server designed in this paper can analyze different IP address. when different operator's network user access campus network Web server, It is through their own operators network, not all users must pass through the education network, therefore, the intelligent DNS server can effectively solve Multiple export link in campus network.
Study on Timing Recovery Loop Filter of the Digital Communication System
Authors: Wang Pin
Published: September 2013

The digital communication system; timing recovery loop for research, is mainly directed against the application performance and design. Through a variety of different loop filter test were carried out and positioning. The invention of a universal filter, and the filter and the original combined to form a new loop filter. The timing recovery loop searching and positioning performance is passed through the filter in the sync pulse and conversion. The experimental results show, as long as certain conditions, the new loop filter in 64 symbols within the time to achieve the positioning, and a good effect on. The filter has the advantages of simple structure. In a digital receiver demodulation, the A / D converter timing recovery can achieve the best state of digital receiver demodulation performance. When the timing recovery frequency is low, the bit error rate performance has certain effect. [ Through the analog-digital hybrid timing recovery circuit and digital timing recovery circuit is studied. Digital timing recovery circuit is compared with the mixed analog digital timing recovery circuit is easy to design, and little noise when running. Therefore the digital timing recovery circuit is studied.
Energy Strategies for Wireless Sensor Networks
Authors: Yuan Li Na
Published: September 2013

Nodes uses the battery power supply, and to change battery for nodes is not realistic, so energy saving becomes the key problems in wireless sensor network.In this paper, we will research relevant energy strategies, with the least amount of energy to maximize the life cycle of the network.Energy strategies can be divided into three categories: based on work cycle,data driven and mobility.
The Application of New Environmentally Friendly Materials in Environmental Protection
Authors: Zhao Yu Huan
Published: September 2013

The new environmentally friendly materials have broad application prospects in environmental protection and the environmental governance. This paper reviewed the recent progress of the new-style environmentally friendly materials in environmental protection and the aspects of research and applications are discussed in this paper one by one of several kinds of new-style environmentally friendly materials in environmental protection and governance, and introduces the application of new environmentally friendly technology in air pollution, sewage treatment and other aspects of environmental protection. The noise pollution control, solid waste disposal, environmental monitoring and other applications are also introduced.
The Establishment and Calculation of Activated Carbon Adsorption Tower
Authors: Yin Jiang Yan , Zhou Shi Jie
Published: September 2013

A small adsorption tower was designed according to the principle of activated carbon adsorption, and the mathematical model was established at the same time. The length of the adsorbed layer, the static adsorption amount, the dynamic adsorption amount, the quality of activated carbon and the quantity of activated carbon adsorption tower were calculated and analyzed by simulation tests.
Study on Surface Characteristics of Vacuum Aluminized Paperboard
Authors: Cao Le , Zhang Yi
Published: September 2013

In order to obtain surface characteristics of vacuum aluminized paperboard, this paper illustrated the structure of vacuum aluminized paperboard. By setting coated paper and gold card paper as the contrast materials, it mainly studied several major surface characteristics of vacuum aluminized paperboard, such as glossiness, smoothness, ink absorbency and paper surface efficiency, which has provided reference for production and application of vacuum aluminized paperboard.
Research and Development on Self-Cooling Beverage Can Based on Refrigeration Material
Authors: Cao Le , Shi Huan Huan
Published: September 2013

This paper illustrated the research status of current self-cooling beverage packaging, provided the design principle of self-cooling beverage can, and designed a new self-cooling beverage can based on refrigeration material (liquid CO2). Its refrigeration structure, refrigeration mechanism and manufacturing technique were further studied; besides, the calculation formula of cooling agent dosage and check formula of container strength was raised. Moreover, safety and environmental property of self-cooling beverage can were evaluated. The result shows that the design accords with the requirements of pressure vessel.
The Influence of the Technical Parameters on the Quality of Engineering Ceramics by Abrasive Waterjet
Authors: Zhang Feng Lian , Zhu Jing
Published: September 2013

Engineering Ceramics is a inorganic nonmetal material, which is sintered at high-temperature. ceramics have promising potential as high-temperature strength.erosion-resistant, wear-resistant and hot impact-resistant.However, because they have high hardness and brittleness as well as nonconductive, it is very difficult to machine them using conventional machining. Their use-area is restricted. At presently, the machining technology of Engineering Ceramics by abrasive waterjet become more and more important for humankind. In this paper, the influence of technical parameters on machining quality has been studied and analyzed. A better changing method of technical parameters is given.
Research on the Temperature Field of Special Linear Motor
Authors: Wu Yao Hui , Liu Xiao Mei , Ji Cheng Fang
Published: September 2013

To the problem of Linear motors temperature rise , and according to the basic theory of heat transfer, the heat conduction model of stator slot was established, the thermal conductivity of stator slot and the convection coefficient between the stator and rotor were determined .Based on this , the simulation model of motor transient temperature field operating at the polymorphism was established by using the finite element analysis software such as MagNet and ThemNet. Then the temperature field of the linear motor that work under the long-trem and periodic duty was calculated. Through the contrast and analysis between the simulation results and experimental data, the rationality of the simulation model and the correctness of calculation method were verified, which has effective help to design, manufacture and apply such kinds of special linear motor.
Properties and Manufacturing Method of Silicon Carbide Ceramic New Materials
Authors: Liu Bing Feng
Published: September 2013

Ceramic industry developed rapidly in recent years, a greater demand for new materials. SiC ceramics as one of candidate materials that a few suitable for use high-temperature structural parts, shows its unique advantages in the high temperature, thermal shock, corrosive and other harsh environments. Its high temperature performance and application potential has attracted people's attention, but its properties make it difficult sintering at atmospheric pressure, unable to meet the needs of industrial production. Pressure less sintering technology has become the key in its application promotion. As strong antioxidant activity, better abrasion resistance, hardness, thermal stability, high temperature strength, thermal expansion coefficient, thermal conductivity and thermal shock and great chemical resistance and other excellent characteristics, Silicon carbide ceramics are widely used in various fields. Based on the silicon carbide ceramic materialisms development process, characteristics, international research and proposed several status of sintering silicon carbide ceramic, and discuss its development trends.
Application of Fiber Reinforced Composites in Sports Equipment
Authors: Wang Hong Liang
Published: September 2013

In order to construct resource-saving and environment-friendly society, realize sustainable ecological development and advocate green sports, the application of fiber reinforced composites in the production of sports equipment is undoubtedly an effective and economical way to protect the environment. This thesis puts emphasis on the performance advantages of fiber reinforced composites and analyzes its application in sports equipment. It mainly discusses the application advantages of fiber reinforced composites in sports equipment, cites application cases and makes a conclusion of the research both at home and abroad of fiber reinforced composites.
The Equivalent Circuit Model of Floating-Gate Single-Electron Memorizer
Authors: Gong Liang , Li Rui Ming , Xiong Qi , Zhou Shao Hua
Published: September 2013

Based on the introduction of floating-gate silicon quantum dot single-electron memorizers structure and working principle, this paper builds corresponding lumping current and capacitance model to calculate the current with memory in the circumstance of linearity, saturation and sub-threshold. Taking advantage of the single-electron devices Threshold Voltage Shift educes different storage condition of nanostorage with different threshold voltage. The simulation shows, this model can precisely simulate memorys read and write state.
Elastic Properties of Cellulose by Molecular Dynamics Simulation
Authors: Zhang Xiu Mei , Shi Sheldon Q. , Cao Jun
Published: September 2013

Molecular dynamics (MD) simulations were performed on molecular models of cellulose represented by two crystalline samples and amorphous samples. Simulated elastic properties and structures of each cellulose model were studied by MD simulations with the reactive force field and compared against experimental data for corresponding sample. The simulation boxes in stretch provide the materials elasticity. When there is a strain, the energy increases and internal stresses were built up within the supercell. The elastic moduli of amorphous and crystalline cellulose were comparable to the literature value. The calculated results had negligible difference with the experimentally measured parameters that indicated that the initial structures were stable using the ReaxFF.
Research on the Application and Energy-Saving Assessment of Phase Change Materials in Intelligence Architectural
Authors: Jing Yong Hua
Published: September 2013

The paper research building energy-saving technologies, in particular, phase change materials and traditional building materials combined into a new building material with a heat storage and heat. It has the energy density and the approximate constant temperature exothermic absorption, etc., can effectively maintain the comfort of the environment and reduce building heating and cooling energy consumption and costs. By collecting and analyzing the data in the the Model room temperature under infrared lamp irradiation, found that compared with the model of the phase change material without adding room, both the peak temperature of the maximum differential is 1.70 °C, the energy-saving efficiency up to 27.56%, with good energy savings.
3D FEM Analysis on Settlement Characteristics of Composite Foundation Using Ram-Compacted Pile in High-Speed Railway
Authors: Shi Cong , Huang Yong , Liu Rui
Published: September 2013

In engineering practice, there is an increasing application of ram-compacted pile composite foundation for its economical and environmental consideration. In order to forward settlement property research of ram-compacted pile applied in high-speed railway deep soft ground treatment for the first time, and based on ram-compacted pile settlement data of trunk embankment near Beijing-Shanghai high speed railway Langfang station, this paper starts from 3D FEM analysis and provides the study on ram-compacted pile settlement characteristics. What more, settlement prediction using 3D FEM analysis is proved to be applicable and effective.
Damage Mechanism and Numerical Analysis of SRAP to Reinforce Hollow Slab Beam Interface
Authors: Zhou Jun Xia , Zhang Bin
Published: September 2013

To study the interface layer pasting mechanism of SRAP reinforcement technology, a multi-scale numerical model, which can simultaneously simulate the local microscopic damage and global macroscopic behavior of structure, is established according to the interface connection method among the models different scales. Based on the actual bridge reinforcement project, the nonlinear overall process of reinforced bridge is analyzed using the multi-scale model, and then the interface layer of reinforced bridge is simulated after the interface units of the bond damage function are determined. Results show that the calculation results by the multi-scale numerical model in the load deflection curve, bond interface layer slip of damage, and beam body concrete cracking model of actual reinforced bridge are consistent with the actual situation. With the multi-scale model, the actual stress of microscopic model is more accurately simulated, but also the overall performance of macro model can be more accurately controlled.
The Mechanization of Rice Transplanting Cultivation Technique for High Yield
Authors: Sun Jun Yan
Published: September 2013

The mechanization of rice transplanting technology (referred to as the machine transplanting rice), is another major renovation after cultivation technique in rice production. Compared with manual transplanting rice, machine transplanting rice has the advantages of high work efficiency, low labor intensity, high yield potential. This paper explains the main problems existing in the promotion of rice and mechanization of rice transplanting technology, puts forward measures and suggestions of technology promotion, and analyzes the mechanization of rice transplanting high-yield cultivation techniques.
A Truck Cab Abnormal Vibration Test and Analysis
Authors: Li Qiang , Liu Yan Fang , Xu Xiang Yang
Published: September 2013

This paper introduces a combination of testing and finite element simulation for the abnormal vibration of a truck cab in specific speed. Vibration characteristics of the truck is tested. The factors that caused the abnormal vibration of the truck is found. The finite element model is established and the modal analysis is performed, the correctness of the test results is verified, and a reliable finite element model for the follow-up solution is provided. The abnormal vibration was caused by the frequencies of radial force variation which almost equal to the truck natural frequency under the vehicle velocities of 50km/h. The approach described in this paper can be applied to similar vibration problem diagnosis.
Appearence Design of Construction Machinery Based on Perspective of Industrial Design
Authors: Zhou Yan
Published: September 2013

This paper combined with their actual project experience and industrial design point of view, based on the role of construction machinery design, working methods, evaluation methods, the authors put forward three ideas and opinions, and thus to provide some ideas and information for china's construction machinery enterprises in the development of industrial design.
Profiled Hole Stamping Progressive Die Design
Authors: Gao Xian Hong , Wu Ming Qing
Published: September 2013

The material H62, thickness 4 mm, production batch to batch general blanking pieces quality analysis, to determine the cutting scheme, the design of progressive die. From the operation and locate mode, discharge and a way, the mold frame type and accuracy in the overall design analysis, and then to die, punch and other parts design and drawing die assembly drawing.
Study on the Geocad-Based Stochastic Model for the Reservoir Controlled by the Facies of the Fuyang Oil Layer in Gaotaizi Area, Songliao Basin
Authors: Zhang Xin Rong , Fang Shi , Liu Jin Ping , Yang Mao Xin
Published: September 2013

In Fuyang oil layer, the later-period structure is complex; the reservoir is mostly composed by river-way sand; the oil and gas reservoir is significantly concealed, so it is greatly difficult to identify. To accurately describe the reservoir, facies controlled reservoir is simulated stochastically using Geocad software in the study area: Lithofacies is first established using Gauss truncation algorithm to construct a facies model of mudstone, dry sandstone, poor sandstone, and sandstone, and its fitting rate is 0.814, and then a porosity model is established using sequential Gauss method under the constraint of the lithofacies model and its fitting rate is 0.814, and its correlation coefficients are as follows: 0.845 is for sandstone; 0.893 is for poor sandstone; 0.915 is for dry stone; a permeability model is established using cloud transformation method under the constraint of the porosity model and its fitting rate is 0.732, and its correlation coefficients are as follows: 0.695 is for sandstone; 0.734 is for poor sandstone; 0.824 is for dry sandstone. These prove that the facies controlled reservoir modeling based on Geocad plays a significant role in the areas where the later-period structure is complex and sand is thin and changed intricately. Thus, the needs of the oil field exploration and development can be fulfilled by the model to a certain extent.
Cold Chain Logistics Temperature Monitoring System Based on Internet of Things Technology
Authors: Wu Li Zhu , Zhao Yu
Published: September 2013

This thesis is based on Internet of Things technology to study the internal temperature of the refrigerated transport vehicles, combined with the knowledge of RFID, temperature measurement, GPRS, and the formation of a real-time temperature monitoring the whole process of the cold chain logistics for food safety monitoring and accountability to provide a reliable technical support.
Traffic Engineering Product Chromaticity Testing Software Development
Authors: Duan Ming Lei , Xiao Qiang , Yang Jin Quan , Liu Cong , Wang Li Jun , Cui Xue Mei
Published: September 2013

Traffic engineering products have two major functions: to guild and indicate signals, they can directly affect drivers vision and mind, its chromaticity characteristics are important parameters index, also those products are the significant parts of active safety. The current traffic engineering products chromaticity test depends on people to trace points in the printed paper to judge whether the parameter is qualified or not. According to the defects, the author developed a set of chromaticity test softwares about traffic engineering products, aiming to improve measurement accuracy and test efficiency. And these softwares have already successfully been operating in the test of traffic engineering products.
Design on Environmental Emergency Monitoring and Management System Based on GIS
Authors: Xie Chao , Kuang Ye , Wang Jun
Published: September 2013

Taking Wuhan City as an example, this paper studied the environmental emergency monitoring and management system (EEMMS) based on GIS technology systems and brought out the frame model of the system combined with the practice. The application of EEMMS model can provide fast, feasible methods for emergency monitoring in sudden environmental pollution accident and timely, effective, scientific technical support for decision-making of the environmental emergency management system.
Discussion on the Problems in Building Construction and Research on the Construction Management
Authors: Xiao Yong Jian
Published: September 2013

The use of construction work performance and service life depends directly on the quality of construction and building construction technology management level. If the building construction unit is unable to ensure the improvement of the quality of construction, it is bound to waste more physical, human and financial resources, and competition in the market is always in a passive position. Quality construction has not reached the demand, the consequences will be self-evident, that is it will shorten the life of the building, slowing the progress of the construction works, construction works explicit and hidden disease prevalence. This paper analyzes the common construction quality problems in the building construction process and related technology management issues, and it proposes some practical improvements.
Engineering Management of Urban Infrastructure Based on Internet of Things
Authors: Chen Yuan
Published: September 2013

We discuss the application of internet of things (IOT) in the management of urban infrastructure and study critical technology in IOT. As an important component and critical technology in IOT, radio frequency identification (RFID) system provides an effective method to detect, monitor or control the object and is composed of tag, reader and antenna. At last we design a compact microstrip antenna with low cost and small weight for a RFID system in IOT which can also be used in narrow-band wireless communication.
A Status Evaluation Model of Human Errors Probability in Petroleum Operations
Authors: Liu Shang Hai , Liu Bao Fa , Liu Xian Tao
Published: September 2013

The accident happens sometimes in the oil industry and that the Human errors (HEs) are studied and used in the petroleum field is fewer. Then, the paper analyzes the early achievements and finds that most of the studies are aimed at the operation behavior but not the operator. So, using probability theory, the paper discusses the HE Causes and the relationship between human behavior and the accident, and it presents the error state evaluation model of organization and the evaluation model of the number of operators doing Error. According to the evaluation models, the management can get the risk status of accident of an organization.
Artificial Bee Colony Algorithm to Solve Dynamic Economic Dispatch Considering Wind Power Penetration
Authors: He Xi , Wang Gao Xia
Published: September 2013

This paper use artificial bee colony algorithm (ABC) to solve dynamic economic dispatch (DED) problem in wind power integrated system for generating units with value-point effect and system-related constrains. The feasibility of the proposed method is validated with ten-unit-test systems for a period of 6 and 24 hours respectively. The effectiveness and feasibility of the artificial bee colony algorithm are demonstrated by comparing its performance with improved particle swarm optimization. Numerical results show that the ABC algorithm can provide accurate dispatch solutions within reasonable time for certain type of fuel cost functions.
Comparison Study of Tubular Linear Surface-Mounted Permanent Magnet Actuator with Different Fractional Slot Winding
Authors: Wu Chuan Guo , Zhang Jian Zhong , Chen Yu Ting , Cheng Ming
Published: September 2013

There are many slot/pole combinations may be selected for the fractional slot tubular linear surface-mounted motors (TLSPM) used as actuators for high voltage breakers, such as 15/8, 15/4, 15/2, 12/8. Compared with integral slot winding, the fractional slot winding has more advantages. Since the winding arrangement will be changed due to the different slot/pole numbers. The characteristics of the TLSPM with different fractional slot, such as detent force, back EMF, are analyzed and compared in this paper. It is shown that good performance may be achieved by selecting appropriate fractional slot design.
Considerations for Manufacturing and Experimental Validation of a PM, Tubular Motor for a Matrix Converter Driven Aerospace Application
Authors: Galea M. , Buticchi G. , Empringham L. , de Lillo L. , Gerada C.
Published: September 2013

This paper deals with the manufacturing and the experimental verification of a tubular, linear, permanent magnet (TLPM) motor. A brief re-cap regarding the design and optimization procedures of a high force density, TLPM motor, presented in previous papers is first given. The design includes a novel, thermal management technique that is implemented in order to improve the thermal performance and thus improve the force density performance of the machine. Manufacturing and assembly of tubular motors is traditionally difficult and costly, thus details of the manufacturing and assembly procedures adopted are presented. The TLPM motor is finally assembled on a dedicated aerospace drive rig fed through a matrix converter. Experimental validation is achieved and compared to the modeling results.
Design and Analysis of a New Linear Fault-Tolerant Flux-Reversal Permanent-Magnet Machine
Authors: Xu Liang , Zhao Wen Xiang , Ji Jing Hua , Liu Guo Hai
Published: September 2013

This paper proposes a new linear fault-tolerant flux-reversal permanent-magnet machine for urban rail transit. The key of the proposed machine is that the magnetizer divides the short mover into two modules. As a result, the two modules of the short mover have the complementary magnetic circuit, and the detent force of the proposed machine is reduced. Also, it possesses more symmetrical and sinusoidal back electromotive force (back-EMF). In addition, the mutual inductances of the propose machine are much lower than the self-inductances, hence offering fault-tolerant capability. The finite-element results confirm the validity of the proposed machine.
Design of a Moving-Coil Linear Generator for Marine Energy Conversion
Authors: Cappelli Luigi , Marignetti Fabrizio , de Santis Enzo , Coia Yuri , di Stefano Roberto
Published: September 2013

The Inertial Sea Wave Converter is a device that uses the effect of a gyroscope to convert wave energy into electric energy. It is equipped with two Linear Tubular Permanent Magnet Generators. This paper describes the design and optimization processes for a moving-coil linear generator to be installed on the Inertial Sea Wave Converter. FEM Analysis has been performed to validate the design and to optimize forces and generated power. A Power Factor Corrector has been developed as frontend electronics.
A Study on the Structure of Linear Synchronous Motor for 600km/h Very High Speed Train
Authors: Park Chan Bae , Lee Byung Song , Kim Jae Hee , Lee Jun Ho , Lee Hyung Woo
Published: September 2013

Recently, an interest in a hybrid system combining only the merits of the conventional wheel-rail system and Maglev propulsion system is growing as an alternative to high-speed maglev train. This hybrid-type system is based on wheel-rail method, but it enables to overcome the speed limitation by adhesion because it is operated by a non-contact method using a linear motor as a propulsion system and reduce the overall construction costs by its compatibility with the conventional railway systems. Therefore, a comparative analysis on electromagnetic characteristics according to the structural combinations on the stator-mover of Linear Synchronous Motor (LSM) for Very High Speed Train (VHST) maintaining the conventional wheel-rail method is conducted, and the structure of coreless superconducting LSM suitable for 600 km/h VHST is finally proposed in this paper.
Design of a Contactless Power Supply for Magnetically Levitated Elevator Systems Integrated into the Guide Rail
Authors: Appunn R. , Putri A. K. , Hameyer K.
Published: September 2013

A contactless energy transmission system is essential to supply onboard systems of magnetically levitated vehicles without physical contact to the guide rail. This paper introduces a contactless power supply (CPS) where the primary is integrated into the guide rail of an electromagnetic guiding system (MGS). The secondary is mounted onboard the elevator car. The advantages of this system when compared to existing energy transmission systems are the low requirement of construction space and reduced costs.
End Edge Characteristics of the Stationary Discontinuous Armature PM-LSM by Installing the Double-Auxiliary Teeth
Authors: Kim Sung Jin , Kim Yong Jae , Jung Sang Yong
Published: September 2013

The stationary discontinuous armatures that are used in permanent magnet linear synchronous motors (PMLSMs) have been proposed as a driving source for transportation systems. However, the stationary discontinuous armature PMLSM contains the end edges which always exist as a result of the discontinuous arrangement of the armature. For this reason, the high alteration of the end edge cogging force produced between the armatures core and the movers permanent magnet when a mover passes the boundary between the armatures installation part and non-installation part has been indicated as a problem. Therefore, we have examined the end edge cogging force by installing the double-auxiliary teeth at the end edge of the armature in order to minimize the end edge cogging force generated when the armature is arranged discontinuously. This paper presents the results of 2-D numerical analysis by FEM of the cogging force exerted by the end edge.
Linear PM Machines Having Mixed Grade and Unequal Magnet Height Pole
Authors: Lin Nan , Shen Yang , Zhu Z.Q.
Published: September 2013

According to the requirement for variable-frequency power supply when a liner motor runs in a household appliance, a variable frequency speed regulation system of three-phase SPWM is designed based on ATmega48 Micro-controller. The hardware structure, the SPWM technology of software program and V/f control strategy are analyzed. In the end of this paper, experiment waves are illustrated. The results show that the running of the system is simple and convenient; the reliability of the system is excellent.
Digitalization Control and Characteristic Analysis of a Superconducting Inductive Energy Management System
Authors: Jin Jian Xun , Xu Wei , Zhou Xin , Chen Xiao Yuan
Published: September 2013

In past decades, the technique of superconducting magnetic energy storage (SMES) has received substantial attention both by academia and industry with the great improvement of applicable high temperature superconductors and relevant control technologies. A bridge-type inductive energy management system topology is presented for SMES applications by using a concept of digitalization. The inductive power charging, storing and discharging status are modelled, and then digitalized for the advanced control implementation. As a consequence, an inductive energy control method can be realized by the digitalized models to satisfy relative project requirements by high efficiency and control precession. New principles and methodologies provide the theoretical foundation to achieve digital power inductor energy control and superconducting inductive energy storage device operation.
Modeling and Torque Balance Control of the Novel Dual-Redundancy Permanent Magnet Brushless Machine System
Authors: Luo Zhan Qiang , Liang De Liang
Published: September 2013

electromechanical actuator (EMA) as the integrated actuation system used in more aircraft has the advantages of both small size and high power density. Dual-redundancy permanent magnet brushless machine system used in EMA improves aircraft control actuator working reliability. The system topology is proposed by the analysis of different kinds of redundancy running modes and structures of dual-redundancy machine. The cause and consequence of unequal torque in two redundancy machines are analyzed. The equal torque is realized by using crossed-feedback control and piecewise linear interpolation methods. Experimental results show that the method can effectively eliminate torque unequal. The experimental results show that the proposed control strategies are suituble for this system operation under different various complicated conditions such as in the rated operation, step response and frequency response.
Novel Control Platform Development for PMLSM Drive System Based on Virtual Instrument
Authors: Jin Jian Xun , Xu Wei , Chen Yan , Guo You Guang , Zhu Jian Guo
Published: September 2013

A novel control platform for the permanent magnet linear synchronous motor (PMLSM) drive system has been built up based on virtual instrument (VI) and relavant data acquisition card (DAQ) devices. In the traditional control platform, it mostly depends on digital signal processor (DSP), which needs a lot of time to further develop the interface between the personal computer (PC) and operators, and its computational capability is not strong than computer. To overcome these shortages, a novel control platform is presented on the base of one PC, one LabVIEW, and one multifunctional data acquisition card. Firstly, a space vector pulse width modulation (SVPWM) signal source is executed in the VI. Then in order to improve the precision of control system, the field oriented control (FOC) is proposed for the PMLSM. Finally comprehensive experiments verify with relative simulations.