bluuebunny/crossref_metadata_2025 huggingface dataset:
Le témoin en psychanalyse et en thérapie familiale psychanalytique
Authors: Eiguer Alberto
Published: October 2013

L’auteur aborde la place et la fonction du témoin dans la justice, l’histoire, la philosophie, les psychanalyses individuelle et familiale, ainsi que chez les enfants face aux violences du couple parental, etc. Dans les cures, la fonction du thérapeute comme témoin ouvre des perspectives intéressantes. Le témoin est un autre sujet. Sa fonction dans la réalité rappelle le lien à l’autre où la dimension de porte-parole de la loi est si bien évidente, pas indispensable : il peut témoigner que quelque chose est advenu. Chez le témoin, cette fonction suscite régulièrement une circulation par sa subjectivité et une élaboration psychique, ce qui conduit à son intégration dans l’identité. Et témoigner n’est pas aussi radical qu’attester, ce dernier acte engage profondément l’être ; la narrativité y joue une fonction de premier ordre. A propos de la famille où les liens pervers sont à l’œuvre plus particulièrement, le témoin apparaît comme un sujet différent du pervers, de la victime ou un complice de celui-ci. L’idée de témoin aide à avancer dans l’analyse de ces liens. Un témoin est un être qui pour l’acteur de la perversion devrait rester passif, impuissant et horrifié par les transgressions. L’analyste y est également sollicité pour devenir le témoin partial de ses agissements. Toutefois l’analyste peut devenir un témoin actif , ce qui contribue à renverser le courant en retrouvant en même temps sa fonction d’écoute. Afin de mieux cerner la position de l’analyste dans le jeu transfert-contretransfert, l’auteur propose un cas de famille en analyse.
À propos des relations entre psychanalyse et neurosciences aujourd'hui
Authors: Georgieff Nicolas
Published: October 2013

Le débat entre psychanalyse et neurosciences ne doit pas être conçu comme un conflit de territoires mais plutôt comme un débat entre points de vue complémentaires sur un même objet : le psychisme humain et son fonctionnement. Sous cet angle les questions qui se posent portent sur les différences de méthodes : objectivité et preuve expérimentale pour les neurosciences, relation intersubjective individuelle pour la psychanalyse dont les modèles théoriques rendent compte au titre d’une théorie de la pratique thérapeutique plutôt qu’une théorie du psychisme.
Apprentissage, douleur psychique et rythmicité des expériences
Authors: Ciccone Albert
Published: October 2013

La connaissance est un besoin fondamental chez le bébé. L’apprentissage qui conduit à la connaissance est une expérience génératrice de plaisir (partagé), mais elle mobilise également des angoisses, des émotions douloureuses, des souffrances narcissiques, ainsi que des fantasmes qui peuvent inhiber la curiosité qui la soutient et la nourrit. L’expérience d’apprentissage requiert une « parentalité » impliquée, attentive aux effets et aux enjeux qui caractérisent le processus de connaissance. Elle nécessite une rythmicité dans l’intégration des expériences et la saisie du monde. Et c’est à la parentalité, externe puis interne, de garantir cette rythmicité.
Study on How Sieving Parameters of Vibration Screen Influence Sieving Efficiency Based on DEM
Authors: Huang Wen Jin , Huang Ya Yu , Shi Jun , Han Shi Chang
Published: October 2013

Vibrating screen is the most commonly used sieving machinery, how to improve its sieving performance is a major issue during the design and application. Discrete element method (DEM) was employed here to analyze and simulate the sieving process, and the influence of the various sieving parameters on sieving efficiency were studied. The curve of relationship between the sieving parameters and sieving efficiency was established. Contrasted with traditional methods, DEM has great superiority on the sieving study.
Computational Investigation of Infrared Radiation Characteristic of Surface Base on MT and RMC
Authors: Su Pei Ran , Eri Qi Tai , Li Xi Xi
Published: October 2013

A fast and accurate infrared radiation calculation method was investigated. Reverse Monte Carlo (RMC) method was adopted to calculate the Infrared (IR) Radiation characteristic of surface. The computational code used Mersenne Twister (MT) method to generate random number, and bounding box method to accelerate computational speed. The Infrared Radiation characteristics of some typical geometric structures were calculated and verified. The effects of emission photons number and mesh number on calculation results were analyzed. The results show the error between calculation value and theoretical value is less than 0.02%. The calculation time is proportional to emission photons number and mesh number.
Study on Modal Shape Change as a Damage Index for Spot Welds
Authors: Wang Rui Jie , Yang Xi Jie , Xiao Zheng Ming
Published: October 2013

The mode shape change of tension shear spot welds with propagation of crack was studied. Mode shape would change as crack exists, while the change is not so explicit. Difference between uncracked and cracked model modal shapes showed violent changes, but not give enough information of the crack location. Further Difference between two neighbouring points also can give information of crack, but also not saliently. Combination of the two would give explicit crack location information of the crack for tension shear spot welds.
Stress Field Numerical Calculation for T10 Steel Quenched by Atmosphere-Pressure High-Velocity Nitrogen-Water Spray Based on DEFORM
Authors: Wei Liu Chuang , Cheng He Ming , Li Jian Yun , Zhang Xue , Zhou Si Qing , Yang Tie Xin
Published: October 2013

In this paper, by using the result calculated with FORTRAN program based on nonlinear estimation method, the stress field of T10 steel specimen quenching process is solved and analyzed. In order to get an in-depth understanding of the stress field in the specimen, the accurate calculation model and appropriate simplification must be considered. Because T10 steels phase is non-uniform when quenching, in order to get the accurate result, the heat release of phase changing must be considerate.
Simulation of Salinity in Artificial Lake in Coastal Region
Authors: Wu Chun Bin , Deng Xiao Wen , Yuan Xue Zhu , Chen Hong , Zhang Liang Yun , Jiao Yong Ji
Published: October 2013

An artificial lake in coastal region was built based on from a sewage reservoir by clearing sediment. Because the high-salinity sediment on the bottom of the Lake and the high-salinity water body around the Lake, salinity of the lake will increase with time. It is necessary to predict and control salinity of the lake. Based on the field investigation on the sediment and water body around the lake, EFDC (environmental fluid dynamic code) was used to simulate the distribution of salinity in the Lake. Simulation shows that more kinds of water sources in different points not only ensure the control of salinity also ensure hydraulic circulation. The results provide the theoretical support for the scheme of supplying water.
The Two-Way Cartridge Valves in the Synchronization Hydraulic System of Simulation Research
Authors: Heng Yang , Yuan Rui Bo , Zhang Yi Bo , He Min
Published: October 2013

The purpose of this article is to achieve pure water hydraulic sync system urn of synchronous control by using two-way cartridge valve integrated logic brick as a main valve.Through making the cartridge valve, hydraulic cylinderand proportional speed regulation valves mathematical modeling,and the theoretical dynamic simulationusing the MATLAB software,the system can realize the accuracy of synchronous control with PID control, and put forward feasibility of the cartridge valve in the water pressure urn synchronous control and the problem in the actual application.
Research on Dynamic Response of Pavement under Moving Vehicle Loading Using Three Dimensional Finite Element Method
Authors: Zhao You Xuan , Qiu Yan Jun , Cao Peng , Ai Chang Fa
Published: October 2013

To analyze the dynamic response of the pavement structure under moving vehicle loading is always a hot point in pavement engineering. In this paper, the moving vehicle has been simplified as spring-dashpot components and the pavement structure has also been discrete using three-dimension finite element model. Based on Newton iteration and central difference integration algorithm, the static and dynamic coupling reactions between pavement structure and vehicle have also been considered using finite element platform ABAQUS. The numerical results and analytic results can fit very well in static analysis, meanwhile the numerical results and experiment results can fit very well in dynamic analysis. Based on preceding verified numerical model, a few interesting phenomenon have been discovered. The pavement dynamic vertical displacement in upper layer is much higher than the situation in static analysis, because the vertical displacement is superimposed during the dynamic response analysis. Furthermore the vertical fluctuation of the vehicle's bar center exists even the vehicle moving in the initial even pavement, and the inertial forces is the most important reason to induce this behavior. In the last, this paper has proposed a more accurate, fast and concrete evidence to explain the reason that the dynamic response has obvious relationship with the diseases in pavement layer.
Numerical Simulation on the Temperature Field of Steel 1045 Quenched by Different Hardening Media
Authors: Xie Jian Bin , Wu Chang Chang , Fan Jing , Fu Miao , Hu Deng Feng
Published: October 2013

Based on the experimental measured cooling curves and the boiling heat transfer theory, the inverse problem of nonlinear heat conduct equation for Steel 1045 quenched by different hardening media was established by functional analysis and finite element method, and the surface heat-transfer coefficients in continuous cooling during quenching were calculated by nonlinear estimate method. Then the constitutive model of Steel 1045 during quenching was established subsequently. Finally, the temperature field of Steel 1045 cylinder quenched by different hardening media was simulated by Finite Element Methods (FEM). Results show that the calculated temperature fields agree with the practical quenching process.
3D Numerical Simulation of Elastoplastic Consolidation Process of Fly Ash Dam
Authors: Zhang Ai Jun , Xu Long Fei , Yang Wen Chao , Zhang Yu Qi
Published: October 2013

The total consolidation process in the construction of hydraulic fill fly ash dam is calculated and analyzed by using the Biots consolidation theory and Cam-Clay model. Meanwhile, some problems such as characteristics of subsidence, excess pore pressure and stress of dam, influences coming from consolidation of hydraulic fill fly ash dam caused by drainage layer in dam foundation, etc, are analyzed. Results show that constructing hydraulic fill fly ash dam in saturated fly ash ground is feasible, and setting drainage layer in the dam foundation can greatly expedite the consolidation speed of dam, which is propitious to the safety of dam.
Study of Constitutive Model of the Schist under Natural and Saturated Condition
Authors: Zhu Xi Xi , Chen Cong Xin , Zheng Yun , Cheng Guan Wen , Zhou Yi Chao
Published: October 2013

Taking the schist as investigative subject, which is the weak layer widely distributed in Yun Fu pyrite, Guangdong province, the deformation characteristics and strength properties of the schist rock mass are analyzed through laboratory uniaxial and triaxial compression tests. Based on the tests on natural and saturated schist, the elastic constitutive equations of the schist, considering the closing of micro cracks, are established; and the deformation characteristics and strength properties of water-weakening influence is analyzed. Through the tests, the deformation characteristics and strength properties of the schist are further understood, which can give some advices to the design of rock slope containing weak layers of the schist.
Research on Kinematics Simulation of Turning Conveyor Based on ADAMS
Authors: Gao Yu , Wang Xue Jun , Chi Yi Lin , Zhong Wei , Hua Bin
Published: October 2013

With industrial technology developed, belt conveyor is very important that improve industrial production. Conveyor belt can avoid slippage, run deviation, and in turn. Belt conveyor conveys material fast and improves the efficiency. For realizing flat belt conveyor turning, this article complete plane conveyor to create 3 d model using Solid edge V20, and use dynamic analysis software ADAMS kinematics simulation of plane conveyor virtual prototype. Through a series of parameters setting and correction, we get analysis data and compare simulation results with the theoretical design results. Desired results show that the turning conveyor conveying speed is 0.6 m/s, turning radius is 1500 mm delivery targets within the scope of design to achieve the desired effect. Conveying material: smoke box (length x width x height, mm) 580 x 460 x 460, single weighing 25 kg. Thus, the technologies reduce design errors, shorten the product development cycle, and reduce development costs of new products. So that it improves production manufacture efficiency and product quality for the enterprise.
Research on Pointer Locating for Analog Measuring Instrument
Authors: Li Quan Wu , Li Bo , Li Yu Hui , Liu Hui Juan
Published: October 2013

This paper presents a pointer positioning method based on Hough transform, which turns an arc scale to a transverse rectangular scales, scans the region from bottom to top line by line, determines smaller rectangular area containing pointer only, uses Hough transform in linear theory to detect the pointer position in the region. Experiments show that this method can locate the pointer position quickly and efficiently in analog measuring instruments.
The Basic Theories of Molecular Dynamics Simulation
Authors: Gai Wen Hai , Guo Ran
Published: October 2013

Molecular dynamics simulation Refers to multi-body system consisting of atomicnucleusand electrons, solving Newton's equations of motion. Each nucleus is seen as a movement under the combined action of all other nucleus and electrons. By analyzing the force of every particle in the system, classical or quantum mechanical method is used to solve the position and velocity of individual particles in the system for a certain time, and to determine the state of motion of the particle, then to calculate the structure and properties of the system [1]. This paper describes the basic concepts and methods of molecular dynamics which are comprised of inter-atomic potential function like pair potential and multi-body potentials, time integration algorithm and so and.
A Review of the Research Progress of Structural Damage Identification Method Based on Computational Intelligence Techniques
Authors: Xiao Li Feng , Tian Hui
Published: October 2013

This paper presents a comprehensive review of computational Intelligence (CI) technology applied in structural damage identification, clarifies the basic principles of computational intelligence techniques, as well as the applicable difficulties that exist in the field of structural damage identification (SDI) from 6 aspects: fuzzy theory, evidence theory, rough set theory, artificial neural networks, support vector machines and evolutionary computation, and then discussed the applicable prospects of computational Intelligence in SDI. It points out that the reasonable cross-fusion of a variety of CI method to specific research object is a necessary means for SDI research. For economy and practicality considerations, CI is suitable for highly integrated complex structural damage identification.
Simulation of Pedestrian Flow on Floor-Stair Interface Using an Extended Lattice Gas Model
Authors: Huo Fei Zhou , Song Wei Guo , Lv Wei , Liew K.M.
Published: October 2013

In this paper, an extended lattice gas model is proposed to simulate pedestrian flow on floor-stair interface by considering inner-side walking preference, turning behavior and different desired speeds. The effects of different injection rates for pedestrians from corridor on the mean velocity and occupancy are investigated, and the merging behavior, which happened on floor-stair interface, is analyzed. The simulation results show that the extended model can reproduce some essential features of pedestrian flow on stairs, such as transition of movement state at higher injection rate, merging behavior on floor-stair interface. The effects of two kind of typical structures of the floor-stair interface on pedestrian merging behavior are discussed, and merging process simulated by the model appears biased to that the corridor is connected opposite to the incoming stair.
New Method to Calculate Exit Flow Based on RFID Technology
Authors: Chen Lei , Song Wei Guo
Published: October 2013

Common methods of obtaining the pedestrian movement parameters include the video processing and the manual statistics. Nevertheless, both the two ways may be complicated and time consuming. In this paper, we propose a new method to calculate the flow and count the number of pedestrians of exit-selection based on RFID technology. The proposed method is validated by comparing with the results obtained from the two different methods, the RFID method and the video processing. It is found that the identified rate of the reader reaches 90% and about 90% of the errors of exit time are less than 0.075. Besides, all the errors of exit time are less than 0.1. About 80% of the errors of exit flow are less than 0.1 and 90% are less than 0.2. It is also verified the new method is much easier than the traditional video processing and more time-saving than the manual process. It is hoped that, more data of pedestrian movement parameters can be easily and quickly extracted through the method proposed in this study.
Modeling of Pedestrian Counter Flow in Corridors with Different Barriers
Authors: Liu Xiao Dong , Song Wei Guo , Lv Wei , Huo Fei Zhou
Published: October 2013

An improved cellular automata model is proposed to study the pedestrian counter flow in corridors with different placements of barriers. The model considers the sensing region, collision avoidance, following, position exchange, and other common pedestrian behaviors. The sensing region here considers not only the number of pedestrians, but also their distances, velocities, both of which affect pedestrians’ transition probabilities. For example, when confronting with opposite pedestrians in high speed, the pedestrian may prefer to slow down or change the original direction. In the model, the pedestrians can change their velocities according to different situations. Simulations are conducted with the proposed model and the effect of different placements of barriers in corridors is studied in detail. The flow rates in different situations are compared, and it is found that certain placements of barriers can obviously improve the corridor’s pedestrian capacity, which may contribute to corridor design in the future.
Establishing DFT-Based Linear Free Energy Relationships for the Study of Organo-Mineral Complexes in Soil Carbon Pool - The Sorption Mechanisms of Organic Acids with Iron Oxides
Authors: Xu Jie
Published: October 2013

Density functional theory and the hard and soft acid-base theory are widely used in quantum mechanics and computational chemistry. This article combined them to describe the iron oxide adsorption of humic acid free energy relationship, and predict the free energy relationship equation, which plays an important role for the study of the formation mechanism of organo-mineral complexes in soil carbon sequestration.
Dynamic Characteristics Simulation and Analysis for the Stable Type Suspension Bridge
Authors: Wang Xiao Chun , Qu Ben Ning , Peng Jiao Long , Geng Meng Xi
Published: October 2013

Under the background of a stable type suspension bridge (A suspension bridge with a inverse-tensional system), the effect of inverse-tensional system for suspension bridge is studied. Using finite element method, three-dimensional finite element model of stable type suspension bridge and a common suspension bridge is established by fish bone model consisting of beam elements respectively. The finite element characteristic equation of two bridges is solved with Block Lanczos method respectively. 20 order eigenpairs of two kind of suspension bridges are obtained. The inherent characteristics of the two type bridges are analyzed comparatively. The results showed that due to the effect of inverse-tensional structures, the overall stiffness of the stable suspension bridge is better than common suspension bridge obviously, which can effectively suppress the torsional vibration of the suspension bridge.
A Distributed Scene Simulation System for Earth Observation Satellite Mission Design and Analysis
Authors: Liu Sheng Gang , Wang Shao Kai , Han Chao
Published: October 2013

The primary mission objective is gathering information of the Earth by on-board instruments using remote-sensing techniques, and sending the useful information back to the ground. Its mission design and analysis involves identification of critical requirements, determination of mission orbit, analysis of relationship between satellite, the Earth and the Sun. This paper proposed a new scene simulation system based on distributed architecture, which consisted of mission design subsystem, numerical simulation subsystem, scenario display subsystem and model management subsystem. The system can show the updated mission status and performance rapidly and efficiently after user modified the initial mission parameters. Practice has proven that it can help users to make a decision and judgment for the mission design, and improve their work efficiency.
Numerical Simulation on Fluid-Solid Coupling of Gate with Different Structure Types of Hemline in Deep Hole
Authors: Wang Jun Xing , Chen Li Qiang , Chen Yu Ting
Published: October 2013

Although there are some achievements of flow-induced vibration of plane steel gate, few is about the influence on gate caused by the difference of structure types of gates hemline. This paper studies on the flow pattern, natural vibration characteristics and dynamic response of four typical types of gates hemline in deep hole of Kajiwa Hydropower Stations service gate. Based on model test and numerical simulation and considering the flow pattern under the gate and in the gate slot, the natural vibration characteristics and the gates dynamic response, it is suggested to use an anteversion angle and a caster angle (type D for short) for the hemline of the type II gate slot. The optimal factors of a gates hemline in a concrete project can be optimized by numerical simulation.
Lattice Boltzman Simulations of Cavity Flow Using CUDA
Authors: Li Xiao Ping , Zhang Hong Ming , Zhang Xiao Xu
Published: October 2013

GPGPU has drawn much attention on accelerating non-graphic applications.A new algorithm on the numerical simulation of Lattice-Boltzmann method (LBM) based on CUDA is studied.The cavity flow is simulated by D2Q9 model of LBM method ,with the non-equilibrium extrapolation method for velocity boundary to deal the wall boundary conditions and using global memory and texture memory to store data.In the model the 9 distribution functions were all stored in the form of two-dimensional grid, each grid is assigned a thread and each thread block includes 256 threads.The simulation for cavity flow with LBM was carried out by CUDA and NVIDIA GeForce 8600 GT on a PC.The speed is more than 15 times faster than that of the CPU.
The Study of Flowing Law of Typical well Patterns in Low Permeability Reservoirs
Authors: Yang Shu Ren , Li Bi Yi
Published: October 2013

Low permeability reservoirs have abundant reserves, accounting for about one-third of all the reservoir storage, but the development is difficult and the recovery is low because of its poor natural property. Reasonable well pattern, well pattern parameters and fracture parameters can be effective in improving the development of low-permeability reservoir. Therefore, studying flow law of various well networks, choosing a reasonable well pattern and corresponding well parameters, are key issues of cost-effective development of low permeability reservoir. Based on extensive investigations of former researches, this paper studies the flow law of vertical well patterns and the effect of permeability differential on flow law. Adaptive study of those different kinds of well patterns has been done by numerical simulation method, including the five point well pattern, inverted seven point well pattern and the inverted nine point well pattern. Studying the typical horizontal well pattern on the flow law, comparing the characteristics of the streamlines. Choosing a reasonable form of well pattern and the well pattern parameters.
Comparison of the Wrap-Around Fins and the Planar Fins in Aerodynamic Parameter
Authors: Liu Xiao , Tang Sheng Jing , Guo Jie
Published: October 2013

According to the TTCP geometry, change the wrap-around fins to the planar fins. Construct the flow-field then generate the grid. Utilizing the computational fluid dynamics method, the lift, drag and roll moment coefficients are computed in different angles of attack. The roll moment coefficients are computed from the flow field solution and compared with the experimental results. The results show good agreement with the experimental measurements for various flight Mach numbers. The aerodynamic characteristics of these two fins are similar to each other from the numerical solution. If consider the lift, drag and center of pressure coefficients merely, these two kinds of fins can be interchanged .But the roll moment coefficient in Wrap-Around fins and planar fins are different. They need to calculate separately.
Computer Simulation of a Drop-Shaped Particle Settling in a Newtonian Fluid
Authors: Nie De Ming , Zheng Meng Jiao
Published: October 2013

This work focuses on the effects of the particle shape factor and blockage ratio on the friction coefficient and drag coefficient of the drop-shaped particle for Reynolds number ranging from 10-2 to 102 when the particle is settling under gravity. Comparison with the results of a circular particle has also been presented. It has been shown that the particle friction coefficient keeps constant when Reynolds number is below 1, and increases as Reynolds number increasing when Reynolds number is greater than 1. Furthermore, results have also shown that both the friction coefficient and drag coefficient of the circular particle are smaller than those of the drop-shaped one when Reynolds number is below about 30 while bigger than those of drop-shaped one when Reynolds number is larger than 30.
Numerical Investigation of the Compressible Flat-Plate Turbulent Boundary Layer with Extended GAO-YONG Turbulence Model
Authors: Tang Yang Yang , Li Zhi Qiang , Wang Yong , Di Ya Chao , Xu Huan , Yang Qing
Published: October 2013

The extended GAO-YONG turbulence model is used to simulate the flow and heat transfer of flat-plate turbulent boundary layer, and the results indicate that GAO-YONG turbulence model may well describe boundary layer flow and heat transfer from near-wall region to far outer area, without using any empirical coefficients and near-wall treatments, such as wall-function or modified low Reynolds number model, which are used widely in all RANS turbulence models.
Application of MUSTA Scheme for Simulation of Dilute Particle-Gas Two-Phase Flow
Authors: Yang Xiang Long , Zhou Xiao Qing , Yang Lei , Huang Zhong Wei
Published: October 2013

The Multi-Stage (MUSTA) scheme was used to construct the numerical fluxes when the hyperbolically degenerate governing equations, in which the independent eigenvectors can not be found, are numerically solved for dilute particle-gas two-phase flows. The abilities of MUSTA scheme used in various problems were analyzed. It was found that the MUSTA scheme is effective even for very complicated problem although appropriate total number of stages should be carefully selected. When the total number of stages equals 3 or 4, the MUSTA scheme is as accurate as Riemann solver in most cases.
Simulation on Balde Duct Vortex in a Francis Turbine Runner Based on S-A Model
Authors: Zeng Yong Zhong , Liu Xiao Bing
Published: October 2013

If deviating from the optimal operation conditions, flow separation will occur on the blade of the runner in a low specific speed turbine. At this time, the turbulent flow of flow field in the blade duct will be in a strong non-equilibrium state, and thus the blade duct vortexes will be generated. To further study the mechanism of blade duct vortexes and to control the generation of these vortexes, Spalart-Allmaras (S-A) model was used to numerically simulate and calculate the internal flow in the low specific speed turbine runner under low load conditions. The blade duct vortexes in the turbine runner were accurately predicted. The effect of short blade in eliminating and reducing the vortexes in the low specific speed turbine runner was analyzed and compared.
Numerical Computation of Complex Stress Intensity Factors of Interface Cracks in Bi-Materials Based on Photoelastic Theory
Authors: Li Peng Cheng , Yang Bang Cheng
Published: October 2013

This paper presents a new numerical method for obtaining the complex stress intensity factor with an interface crack in bi-materials using photoelastic isochromatic fringe numbers N. The theoretical solution of stress field at the crack tip was deduced from Muskhelishvilis stress function and an undetermined term σ0 which is a function of material properties was added to this theoretical solution. A partial differential iterative equation with fast convergence was formed by applying the photoelastic theory. The complex stress intensity factor K=K1+iK2 and σ0 were obtained by Newton-Raphson iteration method and K domain was discussed. The simulant photoelastic isochromatic fringe pattern could be generated through image processing and numerical calculation according to K and σ0. The simulant isochromatic fringe pattern accords with experimental photoelastic isochromatic fringe pattern, so it is practicable for this numerical method of obtaining the complex stress intensity factor.
Numerical Simulation and Size Optimization of the Flow Channel of Rectangular Micro-Channel Heat Sink
Authors: He Ying , Shao Bao Dong , Cheng He Ming , Tang Yan Jun
Published: October 2013

Because micro-channel has the advantages of small volume, low flow velocity and high efficiency, with the rapid development of miniaturization industry, micro heat sink is widely used. Previous studies have shown that the micro-channel heat transfer performance is mainly determined on its geometric and flow condition, and compared with triangle and trapezoid shape, rectangle structure has better heat transfer performance.Based on the finite element software ANSYS Workbench, micro-channel heat sink with the length of 40mm and different cross-sectional dimension are analyzed numerically, the dimension of micro-channel with smaller pressure drop and high heat transfer is gained. For the optimized model, when a given initial temperature 298K, flow rate of 1.5×10-4kg/s, the substrate give heat flux as 187500 W/m2. The heat flux of 5532W/m2 can be dissipated, the pressure drop is reduced to 230.2Pa, and the heat transfer rate is 5.254W, so this micro-channel heat sink has good working performance.
Discussion for Strictly α-Diagonally Dominant Matrices According to Circuit and its Application
Authors: Han Gui Chun , Yang Hai Tao , Gao Hui Shuang
Published: October 2013

In this paper, an equivalent representation for strictly-diagonally dominant matrices according to circuit is given by using the theory of diagonally dominant matrices. As its application, some criteria for nonsingular H-matrices are obtained.
New Development of the P and H-P Version Finite Element Method with Quasi-Uniform Meshes for Elliptic Problems
Authors: Zhang Jian Ming , He Yong
Published: October 2013

In recent three decades, the finite element method (FEM) has rapidly developed as an important numerical method and used widely to solve large-scale scientific and engineering problems. In the fields of structural mechanics such as civil engineering , automobile industry and aerospace industry, the finite element method has successfully solved many engineering practical problems, and it has penetrated almost every field of today's sciences and engineering, such as material science, electricmagnetic fields, fluid dynamics, biology, etc. In this paper, we will overview and summarize the development of the p and h-p version finite element method, and introduce some recent new development and our newest research results of the p and h-p version finite element method with quasi-uniform meshes in three dimensions for elliptic problems.
Numerical Investigations on Bearing Capacity of Grid-Stiffened Cylindrical Shells Subjected to Local Laser Irradiation
Authors: Liu Hai Hong , Long Lian Chun
Published: October 2013

Grid-stiffened cylindrical shells are widely applied in aviation and aerospace engineering. Bearing capacities of grid-stiffened cylindrical shells will be reduced by local heating. In this study, numerical simulation method is applied to deduce the temperature distribution of the grid-stiffened cylindrical shells subjected to high power laser irradiation. Temperature dependent aluminum alloy properties are fully considered in the process of numerical simulation. Comparing to smooth thin-wall cylindrical shells, the effect of ribs size to temperature distribution is studied. As the material properties varying with temperature, the temperature rising rate is higher at the initial period when cylindrical shell is subjected to laser irradiation. The temperature rising rate gradually reduces with irradiation time increasing. Buckling analysis was performed to obtain the buckling bearing capacity and the effect of local heating on grid-stiffened cylindrical shells subjected to local heating.
Strength and Displacement Analysis of a Nuclear Power Giant Lifting Grid and Steel Liner
Authors: Ju Jian Min
Published: October 2013

Construction of nuclear power plant steel liner is an important component. The design and lifting is a highly complex technical systems engineering. For a nuclear power plant project in China, the displacement and strength of the grid and the steel liner have been analyzed in the lifting process by computer methods. The results show that the use of lifting truss design has good strength and stiffness, which can achieve the requirements. The steel liner in the lifting process itself is not overstressed and deformed. The lifting process can meet the engineering requirements of the installation accuracy.
Finite Element Modeling and Experimental Verification of a Suspension Electromagnetic Energy Harvester
Authors: Guan Shi Wei , Shan Xiao Biao , Xie Tao , Song Ru Jun , Xu Zhen Long
Published: October 2013

The power output characteristics of an electromagnetic energy harvester which uses magnetic levitation to produce the nonlinear vibration were investigated in this paper. A finite element model was developed in the electromagnetic finite element software MAXWELL®. The results show that the power output of the harvester was strongly influenced by its external loads and structural parameters. The experimental results show that the peak power output of the electromagnetic harvester is 8.2 mW at the resonance of 8.5 Hz under the vibration acceleration of 5m/s2. That obtained from the finite element analysis is 8.5 mW at 8.4Hz. The experimental results effectively verify the validity of the finite element modeling.
Study of Lower Bound Method for Plastic Limit Analysis of Wedge on Consideration of Anchor Bolt
Authors: Liang Zhi Lin , Li Ze
Published: October 2013

The massive rock slope is made up of rocks and structural surface. The existence and strength of the structural surface decides the stability of the rock mass. By adopting the lower bound method for the plastic limit analysis of wedge slope, we can easily calculate the stability of the rocky slope under various circumstances. To apply this method, we first took the wedge-shaped slide block as a complex of rigid block and structural surface for the analysis of the slope stress under the function of anchor bolts, the integrated function of rocks and structural surfaces being considered. Then, on the basis of the lower bound theory for the plastic limit analysis, a mathematical programming model which takes safety factor of slope stability as the object function is established. This model has to meet the equilibrium condition of the bolt, the Mohr-Coulomb yield condition and the boundary condition of slope. In the end, a classic model of wedge is analyzed and its lower bound solution is worked out. This result is compared to the result worked out by limiting equilibrium to test the validity of the measure and procedure used in this paper.
Study on the Stability of Bearing Load Slope under Earthquake Based on Quasi-Static Force Method
Authors: Liu Xiu Min , Zhou Yi Chao , Chen Cong Xin
Published: October 2013

Quasi-static method originated from the safety evaluation of structural engineering under earthquake. Compared with the time history analysis method, quasi-static calculation is simple and quick, and gradually applied in the analysis of slope stability. This article combined quasi-static method with three-dimensional finite difference method (FLAC3D), and applied it in the seismic stability study of a slope. The slope has a convex shape. Two tunnel anchorages and four bridge foundations built in central of it bearing bridge load, so it is a typical bearing slope. This article put forward a numerical calculation failure criterion to the slop of this type by calculating and analyzing the stress, displacement and plastic zone distribution characteristics when it under earthquake, and gave out the slopes seismic safety coefficient. The research results of this paper can provide a useful reference for the similar projects.
Effects of trap height on captures of arboreal insects in pine stands of northeastern United States of America
Authors: Dodds Kevin J.
Published: October 2013

Knowledge of the effects of variables that can influence trapping results should help to optimise efforts in exotic species detection and other surveys. Two vertical trap placements (understorey, canopy) were tested to determine influence of these two heights on captures of Scolytinae (Coleoptera: Curculionidae), Cerambycidae (Coleoptera), and Siricidae (Hymenoptera) using semiochemical-baited multiple-funnel traps. Traps were baited with α-pinene, ethanol, ipsdienol, and ipsenol. A total of 8463 insects from 65 species and one genus were captured during the study. Average species richness, species diversity, abundance, number of unique species, and expected diversity were higher in understorey compared with canopy traps. Jaccard (0.94 ± 0.05) and Sørensen abundance (0.97 ± 0.03) similarity indices suggested highly similar communities sampled at the two trap heights.Dendroctonus valensLeConte,Dryocoetes autographusRatzeburg,Hylastes opacusErichson,Orthotomicus caelatus(Eichhoff),Gnathotrichus materiarius(Fitch),Asemum striatum(Linnaeus),Monochamus scutellatus scutellatus(Say),Rhagium inquisitor(Linnaeus), andXylotrechus sagitattus sagitattus(Germar) were more abundant in understorey traps. In contrast,Ips pini(Say),Pityogenes hopkinsiSwaine,Monochamus carolinensis(Olivier),Acmaeops proteus(Kirby), andAstylopsis sexgutatta(Say) were more abundant in canopy traps. The common practice of trapping in the understorey may be optimal for sampling arboreal insects as part of survey efforts. However, additional species may be found by trapping at other vertical placements.
IFN-γ–Induced Priming Maintains Long-Term Strain-Transcending Immunity against Blood-Stage Plasmodium chabaudi Malaria
Authors: da Silva Henrique Borges , de Salles Érika Machado , Panatieri Raquel Hoffmann , Boscardin Silvia Beatriz , Rodríguez-Málaga Sérgio Marcelo , Álvarez José Maria , D’Império Lima Maria Regina
Published: October 2013

The mechanism by which protective immunity to Plasmodium is lost in the absence of continued exposure to this parasite has yet to be fully elucidated. It has been recently shown that IFN-γ produced during human and murine acute malaria primes the immune response to TLR agonists. In this study, we investigated whether IFN-γ–induced priming is important to maintain long-term protective immunity against Plasmodium chabaudi AS malaria. On day 60 postinfection, C57BL/6 mice still had chronic parasitemia and efficiently controlled homologous and heterologous (AJ strain) challenge. The spleens of chronic mice showed augmented numbers of effector/effector memory (TEM) CD4+ cells, which is associated with increased levels of IFN-γ–induced priming (i.e., high expression of IFN-inducible genes and TLR hyperresponsiveness). After parasite elimination, IFN-γ–induced priming was no longer detected and protective immunity to heterologous challenge was mostly lost with >70% mortality. Spontaneously cured mice had high serum levels of parasite-specific IgG, but effector T/TEM cell numbers, parasite-driven CD4+ T cell proliferation, and IFN-γ production were similar to noninfected controls. Remarkably, the priming of cured mice with low doses of IFN-γ rescued TLR hyperresponsiveness and the capacity to control heterologous challenge, increasing the TEM cell population and restoring the CD4+ T cell responses to parasites. Contribution of TLR signaling to the CD4+ T cell responses in chronic mice was supported by data obtained in mice lacking the MyD88 adaptor. These results indicate that IFN-γ–induced priming is required to maintain protective immunity against P. chabaudi and aid in establishing the molecular basis of strain-transcending immunity in human malaria.
Community care of individuals at risk of suicide: the Life Promotion Clinic model
Authors: Kolves Kairi , Arnautovska Urska , De Gioannis Angelo , De Leo Diego
Published: October 2013

Assistance to suicidal patients is problematic both at the hospital and community care level. Inadequacy of facilities, pressured personnel, long waiting time, and professional and social stigmatization are just some of the many issues that interfere with successful treatment. The goal of this paper is to present the functioning of the Life Promotion Clinic (LPC), Australia, and describe its users. The LPC is the first specialized outpatient service in Australia dedicated to the treatment of individuals with suicidal thoughts and behaviors. A description of the service and characteristics of its clients (demographic, psychopathology, risk of suicide) are herein presented. Data were collected for 63 male and 175 female patients who attended the LPC over a three-year period. Patients were mostly single females, aged up to 44 years, poorly educated, unemployed or on a pension/benefit. The majority of patients reported at least one suicide attempt, severe depression and anxiety scores, moderate-severe feelings of hopelessness, and high impulsiveness scores. Compared to females, male patients presented with more active desire to kill themselves and higher level of suicidal ideation. We can conclude that establishing a specialist service for treatment of individuals at increased risk for suicide requires consideration of both patient and clinicians needs. The LPC presents an innovative model of community service, capable of engaging patients with serious mental health issues, while making the service accessible to people from various social categories.
Quaternary geology and terrain inventory, Eastern Cordillera NATMAP Project. Report 5: stratigraphic correlations of glacial deposits in the Beaver Mines map area, southwestern Alberta
Authors: Holme P H J , Hicock S R , Jackson L E
Published: October 2013

A stratigraphic cross-section of glacial deposits was constructed from the investigation of sediments in 10 cliff-bank exposures along the Castle River valley and its tributaries in southwest Alberta. The presence of two montane tills at seven sections is
suggested as evidence for retreat of montane ice from the maximum of the late Wisconsinan glaciation and a subsequent minor readvance. Continental till is not found in the Castle River valley upstream of Hunting Eagle section, although it occurs at higher elevations immediately adjacent to the
valley. A single clast of Canadian Shield lithology was found in montane till at one exposure, Washout section. A reconstruction of glacial history compatible with these findings excludes continental ice from the Castle River valley by still-stands of montane ice retreating from readvance
positions.
New observations on the geology of eastern Ellesmere Island, Canadian Arctic, part II: Cambro-Ordovician stratigraphy of the Parrish Glacier region
Authors: de Freitas T
Published: October 2013

The type sections of the Copes Bay and Parrish Glacier formations, and bounding formations, at the snout of Parrish Glacier were examined as part of a larger regional Geological Survey of Canada mapping project. The Ella Bay and Kennedy Channel formations were
the oldest units encountered. These units contain rock types already described, and no stratigraphic revision is necessary. However, the overlying, dominantly clastic units, assigned previously to the Ellesmere Group, are lithologically similar, and more appropriately assigned, to the Dallas Bugt
Formation. The overlying Scoresby Bay Formation is a resistant dolostone and minor limestone succession containing trilobites of the Bonnia-Olenellus Zone. The overlying Parrish Glacier Formation is generally more recessive and contains Middle Cambrian trilobites, together with striking
red-weathering mudrock and dolostone. The highest Cambrian unit, the Copes Bay Formation, is abandoned, because regionally mappable formations spanning this interval were described much earlier and so have priority.
Porosity characteristics of shale formations from the Western Canada Sedimentary Basin
Authors: Katsube T J , Cox W C , Issler D R
Published: October 2013

Fifty-seven shale samples from several Cretaceous stratigraphic units (Viking Formation of Colorado Group to Belly River Group) in the southern section of the Western Canada Sedimentary Basin were obtained for porosity analysis by helium and mercury porosimetry.
This is part of a joint study between PanCanadian Petroleum Limited and the Geological Survey of Canada to investigate the source of subhydrostatic pressures within the basin.
Results indicate that these samples have petrophysical characteristics of extremely tight and well compacted shales, suggesting that most samples have experienced maximum paleoburial depths of more than 2.5 -- 3.0 km. Given current sample depths of 0.5 -- 2.8 km this implies up to 2 km of erosion
over the study area. These shales are generally at an early stage of diagenetic alteration. There is a general east to west decrease in pore-surface area, suggesting either an increase in degree of cementation or grain size or both, with some exceptions in the deeper
formations.
Electrical characteristics of nonmineralized rocks from the Bathurst mining camp, New Brunswick
Authors: Katsube T J , Connell S , Goodfellow W D , Scromeda N
Published: October 2013

Laboratory electrical resistivity measurements have been carried out on 20 mainly nonmineralized samples, representing major rock types in the Bathurst mining camp, to assist in the interpretation of airborne and borehole electromagnetic (EM) surveys. Following
similar studies on mineralized and nonmineralized rocks from several massive sulphide deposits in this region, this study is based on nonmineralized host rocks.
Results indicate that electrical resistivities (rr) are 0.3-56 000 Wúm for these samples, the lower end within the detectable limits of EM survey systems and the higher end well above that limit. Iron-formation and carbonaceous sedimentary rocks display resistivity anisotropies of 25:1 to
300:1, with rr values of 12-90 Wúm, in the conductive direction, values within the EM detectable limit. Data analysis by the three-polarization model suggests that conductive minerals (e.g. magnetite, graphite, carbon) line the pores of the low rr directions, except for one case where the
source is fractures rather than bedding planes.