bluuebunny/crossref_metadata_2025 huggingface dataset:
Synergistic Effect of 5-Azacytidine and NF-κB Inhibitor DHMEQ on Apoptosis Induction in Myeloid Leukemia Cells
Authors: Togano Tomiteru , Nakashima Makoto , Watanabe Mariko , Umezawa Kazuo , Watanabe Toshiki , Higashihara Masaaki , Horie Ryouichi
Published: October 2013

Constitutive NF-κB activation characterizes a subset of myeloid leukemia (ML) cells. Recent reports have indicated that DNA methyltransferase (DNMT) inhibitors are alternative candidates for the treatment of ML. However, the optimal use of DNMT as a chemotherapeutic agent against
ML has yet to be established. In this report, we examined the effect of the NF-κB inhibitor dehydroxymethylepoxyquinomicin (DHMEQ) and its combinational use with the DNMT inhibitor 5-azacytidine (AZA) in ML cell lines. DHMEQ alone induced cell death in ML cell lines with NF-κB
activation, although the response varied among the cell lines. The addition of DHMEQ enhanced the effect of AZA on the viability and apoptosis induction of ML cell lines. The treatment of ML cell lines with AZA marginally induced NF-κB binding activity, although the treatment induced
NF-κB protein. These results indicate the potential usefulness of DHMEQ and its combinational use with AZA in the treatment of ML, although the molecular effect by AZA on the NF-κB pathway awaits further study.
Orchid protocorm‐like bodies are somatic embryos
Authors: Lee Yung‐I , Hsu Shan‐Te , Yeung Edward C.
Published: October 2013

• Premise of the study: Protocorm‐like bodies (PLBs) of orchids are important in orchid micropropagation and outwardly resemble somatic embryos in form and development. To determine whether PLBs are truly embryogenetic, we compared PLBs with somatic embryos and zygotic embryos to determine whether they had similar surface molecules and whether hydroxyproline‐rich glycoprotein (HRGP) inhibitors similarly alter their growth.

• Methods: Embryogenic calluses (ECs), zygotic embryos, and protocorms were collected for histological and histochemical studies with light microscopy. The presence of JIM11 and JIM20 epitopes was determined using immunodot blots and immunolocalization procedures. The importance of wall proteins in the formation of PLBs was investigated using 3,4‐dehydro‐l‐proline (3,4‐DHP), an inhibitor of HRGP biosynthesis.

• Key results: At the early stages of PLB formation, the cytoplasm of the globular cell clusters and meristemoids took on a vacuolated appearance. Starch granules and protein bodies appeared, albeit transitory in nature. Positive localizations of JIM11 and JIM20 were noted in the embryogenic culture and developing PLBs similar to zygotic embryos. The inclusion of an inhibitor to HRGPs inhibited PLB formation.

• Conclusions: This study demonstrates that during the early stages of PLB formation, the cells show cytological characteristics and cell wall markers similar to zygotic embryo development, justifying the statement that PLBs are indeed somatic embryos of orchids. Thus, these results suggest that PLBs could be used as an experimental embryological system for physiological or molecular characterization.
Predispersal seed predation is higher in a rare species than in its widespread sympatric congeners (Astragalus, Fabaceae)
Authors: Combs Julie K. , Lambert Amy M. , Reichard Sarah H.
Published: October 2013

• Premise of the Study: Rare plants may be rare, in part, because they are more susceptible to damage by predispersal insect seed predators than widespread congeneric species; thus, seed predation may be an important determinant of plant rarity. Scant evidence exists to either support or reject this hypothesis, limiting our ability to predict herbivore effects on plant rarity. We used a comparative framework to test this hypothesis in rare–common, sympatric congeners.

• Methods: We compared seed consumption by insect type and seed production among a rare Astragalus (Fabaceae) species and two sympatric, widespread congeners. We measured plant traits and tested whether traits were correlated with seed damage within and among rare–common species.

• Key Results: Seed predation was significantly higher in a rare species than in common congeners over 2 yr. Seed production per pod was significantly lower in the rare species. Seed weevils exclusively consumed seeds of the rare species. Higher seed predation in the rare species is related to a combination of factors: plant phenology, dispersal ability, and vigor; seed predator identity; and insect phenology.

• Conclusions: Our results support the hypothesis that a rare plant is more susceptible to seed predators than two common, sympatric congeners. Seed predator reduction is a promising management tool to increase seed‐set, recruitment, and survival of the rare species. Further studies that compare rare–common, sympatric congeners are greatly needed to broadly evaluate the hypothesis concerning rarity and susceptibility to seed predators and to inform conservation plans for rare species.
Le corps à risque, machines et vitesse
Authors: Sollberger Jeolás Leila , Kordes Hagen
Published: October 2013

Cette recherche ethnographique a pour thème les courses clandestines de voitures et de motos ( rachas ) au Brésil. L’objectif est de comprendre les significations qui s’attachent à la vitesse et au risque inhérents à cette pratique. Les jeunes valorisent leur capacité à maîtriser les machines (jouer) et l’expérience sensorielle (jouir). L’intensification des sensations corporelles et des émotions semble leur permettre d’exorciser l’impression d’impuissance grâce au sentiment de contrôle de leurs corps et d’appartenance à des groupes de pairs. Se mettre à l’épreuve peut être compris comme une forme ritualisée de construction des identités dans un jeu social qui prive les jeunes de références stables.
Le niveau des diplômes est-il toujours une garantie ?
Authors: Delès Romain
Published: October 2013

L’évaluation classique de la rentabilité des études retient comme unique paramètre le niveau de diplôme : si les conditions d’insertion progressent à mesure que l’on s’élève dans la hiérarchie des niveaux de diplômes, on en conclut que la poursuite d’études est rentable. Mais, dans ce cadre, comment comprendre la situation, a priori paradoxale, de nombre de diplômés du supérieur qui, malgré le niveau élevé de leurs titres scolaires, peinent à décrocher un emploi stable, de qualité et rémunéré à la hauteur de leurs prétentions scolaires ? L’acquisition d’un niveau supérieur d’études est-elle rentable pour toutes les spécialités que compte l’université ? À une analyse globalisante de l’insertion professionnelle en termes de niveau de diplôme cet article oppose le souci du détail des spécialités d’études.
Parcours de formation et d'accès à l'emploi des anciens étudiants handicapés
Authors: Segon Michaël , Le Roux Nathalie
Published: October 2013

Alors qu’ils sont de plus en plus nombreux à l’université, on sait peu de choses sur les conditions d’études et le devenir des anciens étudiants handicapés. Des dispositifs de compensation se sont développés depuis la loi de 2005, et cet article, à partir de récits d’insertion de jeunes handicapés, analyse les formes de recours à ces dispositifs. Les quatre parcours types construits au regard de cette utilisation montrent le poids des environnements familial, associatif, universitaire et professionnel et mettent au jour des dynamiques identitaires particulières liées au handicap.
Bifurcations, temporalités et contamination des sphères de vie
Authors: Supeno Eddy , Bourdon Sylvain
Published: October 2013

Alors que certains jeunes adultes non diplômés s’enlisent dans des conditions de vie pénibles et insatisfaisantes, d’autres parviennent, contre toute attente, à s’extraire de la précarité. L’analyse longitudinale des liens entre les changements qui surviennent dans les différentes sphères de vie d’un panel de jeunes Québécois non diplômés vivant en situation de précarité permet de repérer des configurations produisant des effets d’entraînement susceptibles de structurer de façon significative l’orientation des parcours de vie. Une typologie des séquences temporelles à l’œuvre permet de mieux saisir comment s’articulent temps courts et temps longs dans la construction des irréversibilités constitutives des bifurcations.
Transition à la paternité et changements psychiques. Recension des écrits publiés entre 1950 et juin 2012
Authors: Senécal I. , Saucier Jean-François , Garon R.
Published: October 2013

Les connaissances sur les changements intrapsychiques de la paternalisation sont limitées ce, malgré la reconnaissance de l’importance de la présence des pères dès le début et malgré l’influence des processus intrapsychiques en cours sur la qualité de cette présence. Un bilan des connaissances à ce sujet s’impose donc. Un souci d’exhaustivité nous a conduits à couvrir la période allant des années 1950 à juin 2012. Pour mettre en relief l’évolution des connaissances et des manières de faire la recherche, nous avons procédé de manière historique et retenu les écrits les plus près de notre thème pour chaque décennie.
La fonction réflexive parentale et l'approche Watch, Wait, and Wonder : perspectives théoriques
Authors: Rossignol Annie , Puentes-Neuman Guadalupe , Terradas Miguel M.
Published: October 2013

La fonction réflexive (FR) du parent, c’est-à-dire sa capacité de comprendre son propre comportement et ceux de son enfant en fonction des états mentaux (pensées, désirs, croyances, sentiments) et des intentions sous-jacentes, a récemment été ciblée comme une variable clé permettant de prédire la sécurité de l’attachement chez l’enfant. L’approche Watch, Wait, and Wonder (3W), utilisée auprès des dyades parent-enfant, est explorée comme méthode d’intervention pouvant engendrer des effets positifs sur la fonction réflexive parentale (FRP). Les spécificités de l’approche 3W sont analysées à la lumière des variables reliées à la FR afin de faire ressortir les apports et les limites d’une telle intervention sur le développement de cette capacité chez le parent.
Convergence, transferts et traduction
Authors: Hassenteufel Patrick , de Maillard Jacques
Published: October 2013

L’introduction de ce numéro spécial propose de mettre en relation deux approches de l’analyse de la transnationalisation des politiques publiques : les travaux portant sur la diffusion et les transferts, d’un côté, et ceux traitant de la convergence, de l’autre. Il plaide pour une démarche comparative - qualifiée de comparaison transnationale - n’isolant pas les différents niveaux d’action publique et centrée sur les acteurs en interaction afin de comprendre les processus de traduction, entendus comme opération cognitive de re-création d’un modèle et comme produit de négociations entre différents acteurs.
La confusion des mots : le mal entendu
Authors: Peyrard Colette
Published: October 2013

Le débat médiatique à propos de l’euthanasie a resurgi en France depuis quelques mois, avec la publication du Rapport Sicard sur la fin de vie. Un médecin spécialisé en douleur et soins palliatifs s’interroge sur l’imprécision – voire l’inadéquation – des termes employés dans ce débat, et sur la confusion qui s’ensuit dans notre société.
L'Unité d'éthique du CHUV de Lausanne
Authors: Benaroyo Lazare , Beaufils François , Bouleuc Carole , Degiovanni Chantal
Published: October 2013

Pour une prise en charge adéquate, ce qui relève de l’humain est tout aussi important que ce qui est donné par la technique. Lazare Benaroyo présente l’approche du soin telle qu’elle est développée par l’Unité d’éthique du Centre hospitalier universitaire Vaudois de Lausanne (CHUV) : une visée qui englobe l’agir technique et l’agir relationnel.
Un continent, deux visions. La France, les États-Unis et le processus d'Helsinki
Authors: Badalassi Nicolas
Published: October 2013

La fin des années 1960 et le début des années 1970 voient s’affronter en Occident deux modèles de détente Est-Ouest. Tandis que les États-Unis privilégient une détente militaire visant à négocier avec Moscou des mesures de limitation des armements, la France entend favoriser la détente politique, économique et culturelle, seul moyen selon elle de faciliter le dépassement de l’ordre bipolaire. La conférence sur la sécurité et la coopération en Europe est, pour le président Georges Pompidou, une excellente occasion de mettre en application les préceptes gaulliens de « détente, entente, coopération » et ainsi de travailler à la réunification de l’Europe tout en luttant contre le « condominium soviéto-américain ». Si Washington se désintéresse dans un premier temps de la CSCE, les événements des années 1973-1974 finissent par persuader Henry Kissinger que les États-Unis peuvent eux aussi tirer profit du processus d’Helsinki.
De la nature du régime iranien
Authors: Therme Clément
Published: October 2013

La République islamique est-elle un État idéologique, une démocratie islamique ou une dictature classique ? La dimension heuristique de ce débat réside dans une meilleure compréhension du fonctionnement politique de la République islamique. Ainsi, les critères choisis pour définir le système politique de la République islamique ont une incidence sur l’analyse du fonctionnement politique de la République islamique. Il faut donc mettre en perspective les différentes conceptualisations politiques proposées par les chercheurs tant celles-ci sont contradictoires. Enfin, il convient de noter que les événements postérieurs à l’élection présidentielle contestée de juin 2009 limitent l’intérêt des analyses soulignant l’importance de la dimension « élective » ou « républicaine » au sein de l’édifice institutionnel de la théocratie islamique.
Gestural Product Interaction
Authors: Wodehouse Andrew , Marks Jonathon
Published: October 2013

This research explores emotional response to gesture in order to inform future product interaction design. After describing the emergence and likely role of full-body interfaces with devices and systems, the importance of emotional reaction to the necessary movements and gestures is outlined. A gestural vocabulary for the control of a web page is then presented, along with a semantic differential questionnaire for its evaluation. An experiment is described where users undertook a series of web navigation tasks using the gestural vocabulary, then recorded their reaction to the experience. A number of insights were drawn on the context, precision, distinction, repetition and scale of gestures when used to control or activate a product. These insights will be of help in interaction design, and provide a basis for further development of the gestural vocabulary.
Effects of Editing Style on the Perceived Meaning
Authors: Yousry Mustafa
Published: October 2013

Since 1980s, classic editing conventions have been modifying into new forms characterized mostly by quickly changing images. Within the Egyptian context, this study has examined the effects of those newer video editing styles on audiences' perception of television. Six short videos edited following the conventions of those newer editing styles were presented to two sample groups of Egyptian audiences, these two groups of participants represented two generational audiences: elderly television audience (aged between 50 and 60 years old), and young television audience (aged between 18 and 22 years old). Data regarding the nature of the meanings constructed by different audiences were collected and compared. The results confirmed that those newer editing styles have produced a new generation of Egyptian spectators who interact with the television medium in a different way than previous generations.
The Viability of Digital and Rapid Prototyping in Enhancing Ceramics Product Development
Authors: Enoch Olalere Folasayo , Shuaib Ab Aziz Bin
Published: October 2013

This research practically investigates on how to reduce development time, development cost and also improve prototype quality in ceramic production. The researcher used an experimental approach, by first investigating and analysing the conventional method used by ceramics manufacturers in product development. This was achieved with several visits to three ceramic factories in Kelantan, Malaysia. After which a digital method was developed by introducing computer-aided design (CAD) into three stages in development process. In order to test the viability of the CAD introduced, the digital method was used to develop prototypes of ceramic products selected from the three ceramic factories. Finally, a comparison was done between conventional and digital method based on development time, development cost and prototype quality. This reveals that digital method can successfully reduce development time and improve prototype quality in ceramic product development process. However, the comparison also reveals that digital method is more expensive than the conventional method used by the factories in ceramic product development.
Mechanical Calculation Model for L-Shape Traffic Signs Bar with Variable Cross-Section
Authors: Qu Ben Ning , Yang Bang Cheng , Guo Ran
Published: October 2013

L shape traffic sign bar is composed of a stand column and a cantilever bar using bolted connection. The cross-section of stand column and a cantilever bar is closed thin wall with regular octagon and their cross sectional area is variable along axial line. The calculation formulas of stress for cantilever bar, stand column and flange bolts and calculation formulas of deformation for L rod are derived under gravities and wind loads, which provide theoretical basis for the design and use of L-shape bar. Calculation results using these formulas by comparison with finite element calculation results verify the correctness.
Energy Performance Prediction and Numerical Simulation Analysis for Screw Centrifugal Pump
Authors: Quan Hui , Li Ren Nian , Su Qing Miao , Han Wei , Cheng Xiao Rui
Published: October 2013

To explore the screw centrifugal pump performance change, and the impact of solid-liquid two-phase flow on the screw centrifugal pump, the internal flow of type 150×100LN-32 centrifugal pump is used as the research object. Mixture multiphase flow model, standard k-ε turbulence model and the sliding mesh technique are used to carry out the unsteady numerical simulation to describe internal flow field in screw centrifugal pump. By Setting the monitoring point to get the pressure pulsation characteristics and predict the changes in the energy performance. Open laboratory bench tests are carried out to verify the reliability of the numerical methods. Based on this, the impact of the two-phase flow on the screw centrifugal pump is analyzed. The results indicate that the head-flow curve presents a hump-shaped with the increasing of the flow. The maximum of efficiency appears. At the same time, the change of the volume concentration of the solid phase has little effect on the energy performance of screw centrifugal pump. But at different times, the head decreases and the power increases with the increasing of the concentration.
Quantify the Weld Line and its Optimization Based on the Taguchi and the Moldflow Secondary Development
Authors: Shan Zhi , Qin Shu Hao , Wei Liang Qiang
Published: October 2013

Designed the weld line quantization algorithm based on the moldflow secondary development of technology, obtained the numerical experimental data of weld line with this. Analyzed of the impact of the relationship between the process parameters and weld line, and optimized the process parameters by orthogonal experimental design. These provided an important basis for the forming process design.
Prediction Model of the Direct Solar Vacuum Tube
Authors: Zhong Ge , Wang Hui Tao , Wang Hua
Published: October 2013

Based on the heat transfer, the prediction model of the direct solar vacuum tube was studied, the concept of local heat loss coefficient was put forward, through the temperature distribution model of metal pipe and fin, the calculation method of average heat loss coefficient was obtained, the calculation accuracy of performance was improved. The results were compared with dates of Abdul Waheed Badar et al, error is less than 7.15%, the calculation accuracy of model meets the requirements. The impact of various factors on the performance of the collector tube was studied.
Nonlocal Analytical Formulas for Plane Crack Elements and Semi-Analytical Element Method for Mode I Crack
Authors: Zheng Chang Liang , Yao Zheng
Published: October 2013

This paper presents the series solutions in Hamiltonian form for plane sectorial domain of the nonlocal linear elasticity originally proposed by Eringen [. Based on the Hamiltonian governing equations of plane elasticity for sectorial domain, the variable separation and eigenfunction expansion techniques were employed to obtain these solutions. These solutions can be used to develop a nonlocal analytical finite element for the model I crack in nonlocal fracture mechanics.
The Comparison of Two Simulation Methods on the Thermal Ablation with Large Blood Vessel
Authors: Zhai Fei , Nan Qun , Zhang Hui Juan , Guo Xue Mei
Published: October 2013

Purpose: The aim of this study is to contrast the coupling algorithm (CEE) and boundary heat exchange coefficients (Nu) used in treatment of the large blood vessel in thermal ablation. Methods: Based on the Pennes bioheat transfer equation, the models with blood vessel parallel to microwave antenna were built with finite element method. In two kind of simulation, blood flow rate was set in 0.2 m/s or boundary heat exchange coefficients was set in 1750 W / (m2 °C), respectively. Results and conclusions : There was no significant difference on shape of effective ablation areas and 54°C temperature contours by using two kinds of simulation methods, especially the place far away from the blood vessel. At the place near the blood vessel, the method of CEE is closer to real condition which considers directivity of blood. Whats more, there are higher temperature by using method of Nu inside effective ablation areas.
Parallelization Research of SapTis-Software of Multi-Field Simulation and Nonlinear Analysis of Complex Structures
Authors: Zhang Lei , Zhang Guo Xin , Pan Hai Lin , Du Xiao Kai
Published: October 2013

SapTis is a software of simulation and nonlinear analysis of complex structures which based on the FEM method, this paper discussed the key technology of FEM parallelization and then the parallelization strategy of SapTis is given; There are three realization for the SapTis parallelization:Make fine grain parallelism to the PCG solution on the OpenMP platform; the other Krylov subspace method solutions and preconditioners was developed on the MPI platform; the sparse direct solutions was developed on the OpenMP platform. Test results show that there are high efficiency of the three parallel realization for SapTis, and each had its own characteristics. In addition, the GPU solution is still in development which will make the SapTis software more powerful, flexible and adaptable.
Simplified Calculation of Internal Force of Steel Structure in Torsion
Authors: Chen Xin , Wang Jun Ping , Yan Xin
Published: October 2013

It cant be ignored when steel members generating forces and stresses in torsion. To get the exact results, you need to solve several higher order differential equations, and it is much difficult for actual engineering designs. Based on Elastic theory of thin-walled structures, this thesis tries to introduce an approximate, convenient and high-precision way to solve problems about torsion.
Stability Analysis of Open-Pit Slope Containing a Fault Utilizing UDEC
Authors: Zheng Yun , Chen Cong Xin , Zhu Xi Xi , Liu Xiu Min , Cheng Guan Wen
Published: October 2013

Faults are the commonly encountered large geological discontinuities in hard rock masses, many severe open pit slope failures are found to be closely associated with the faults presence nearby. Open-pit slope takes shape gradually as a rock unloading process accompanied by geostress redistribution, especially in a slope containing a fault. The finite difference code (UDEC) was employed as the analytical method in this paper and coulomb slip model was utilized to describe the properties of fault provided by UDEC. Parametric analysis has identified both the fault dips and fault locations relative to the open pit slope to be really critical for the open pit slope stability. The relationship of crest displacements, safety factor varying with these fault parameters was established. The distribution of plastic zone and displacement was graphically presented and the mechanisms such effects were discussed. These results offer a guideline in support design for an open-pit slope containing a fault.
Mechanical Numerical Analysis for L-Shape Traffic Signs Bar with Variable Cross-Section
Authors: Qu Ben Ning , Guo Ran , Yang Bang Cheng
Published: October 2013

L-shape traffic sign bar is composed of a stand column and a cantilever bar using bolted connection. The cross-section of stand column and a cantilever bar is closed thin wall with regular octagon and their cross sectional area is variable along axial line. The finite element simulation analysis for the bar is done under gravities and wind loads. Three-dimensional finite element model of bar is set up and stress field and displacement field is given under different load and their combination. Stress and displacement values of key parts are extracted and compared with theoretical calculation. Indicates that the theoretical calculation and finite element calculation is correct.
Research on Evaluation and Development Potential Analysis of Low-Slope Hilly Land Resources
Authors: Lv Jie , Yuan Xi Ping , Gan Shu , Yang Ming Long , He Qiong , Zhang Xiao Lun
Published: October 2013

Investigation and potential analysis of low-slope hilly land resources is a foundational work for carrying out land development and utilization scenically. In this paper, based on status of land use change survey data in 2011 and satellite remote sensing data of study area, at the same time,we combined with the practical situation of study area, by using superposition analysis, spatial clustering and fuzzy comprehensive evaluation, did an investigation to low-slope hilly land resources which slopes between 8 degree and 25 degree, analyzed theoretical potential and actual potential of low-slope hilly development and utilization, in order to provide the basis and reference for land use work. The results of the project show: (1) development potential of low-slope hilly land resources is large; (2) the discrepancy beteen theoretical potential and actual potential is obvious; (3) the strategic of development and utilization must be adjust measures to local conditions, pay equal attention to ecological benefit, social benefit and economic benefit and considerate landscape and ecological balance comprehensively.
Transverse Crack Propagation Characteristics of Rail Bottom under Wheel-Rail Force
Authors: Wang Jian Xi , Gui Ji Rong , Chen Si Yi
Published: October 2013

The finite element model of multi-span continuous beam track is established to research the stress and strain fields of rail under the wheel-rail force. On this basis, according to the practical observation of crack shape, a three-dimensional semi-elliptical crack model was established, the singular element method was employed to simulate the stress field singularity of crack tip, and the transverse crack propagation characteristics of rail bottom under wheel-rail force was studied. The results show that: with the increase of wheel-rail force (vertical, lateral and longitudinal force), KI shows an increasing trend, and with the increase of lateral force, the increase rate of KI is maximum; with the increase of vertical force, both of the KII and KIII show a decreasing trend. However, with the increase of lateral and longitudinal force, both of them show an increasing trend. From the range of stress strength factor of crack tip, the amplitude of KI at the crack tip of rail outer edge is maximum , but the crack tip amplitude of KII and KIII is maximum at partial to the rail centerline.
The Basic Dynamics Study of Flip-Flow Screen and Particles Based on MATLAB
Authors: Zhang Jin Wen , Huang Ya Yu , Chen Zhao Hui
Published: October 2013

This paper outlined the basic working principle of flip-flow Screen and and then established the screen surface kinetic equation of simplified geometric model. The midpoint motion law of the flip-flow Screen surface, the screen surface-particle trajectory and the inclination of the particle trajectory were studied. The characteristic curve made by Matlab showed unique dynamic characteristics of the screen surface, which provided a theoretical basis for its design and application.
Numerical Solution for Weight Function of Electromagnetic Flowmeter Using Finite Element Method
Authors: Wei Kai Xia
Published: October 2013

Weight function is related with the sensor structure of electromagnetic flowmeter (EMF). Because of complex boundary conditions, it is difficult to solve the voltage differentiation equation of EMF directly to get weight function. The finite element numerical analysis method is tried to solve the weight function for the point and large-electrode EMF in this paper. The results prove it is feasible and efficient to obtain weight function of EMA by means of finite element numerical analysis.
Laser-Induced Thermal Damage to K9 Glass on Finite Element Method
Authors: Chen Li Zi , Jing Chun Yuan , Guan Xiao Wei
Published: October 2013

Based on the theory of the thermal conduction and the thermal elastic equations, does some researches in view of the thermal Damage of K9 glass by finite element analysis. The distribution of temperature field and thermal stress field of the ideal K9 glass which irradiated by 100W pulsed-Nd: YAG laser are simulated with finite element software. The result shows that the temperature of the surface of glass doesnt reach the melting and the thermal stress of it doesnt get to the requirement for fracture strength. Then, the model of K9 glass containing inclusions has be built. The simulation result indicates that inclusions may affect the distribution of temperature field and thermal stress field of the K9 glass, which makes the injected laser beams energy centralize on a small area around the inclusions owing to the existence of the strong absorbing, thus leading to K9 glass laser damage threshold reduction and easier to thermal damage.
Virtual Crack Closure Technique in the Analysis of Concrete Arch Dam Cracks
Authors: Wang Dong Xu , Wu Liang
Published: October 2013

In this paper, a 3-dimension finite element with dummy nodes for calculating and outputting the stress energy release (SERR) at the crack tip was built up based on virtual crack closure technique (VCCT), it is presented to demonstrate the virtual crack closure technique has high accuracy and good feasibility. The calculation results curve and the analytical solution curve are in good agreement. The results show that the proposed interface elements can be used to calculate to get accurate results by finite element analysis. It can give us some new ideas for Hydraulic structure crack research.
Stability Analysis of Double-Walled Carbon Nanotubes with Initial Stress
Authors: Yan Yan , Wang Wen Quan , Zhang Li Xiang
Published: October 2013

In the paper, the stability of the double-walled carbon nanotubes (DWCNTs) under the initial axial stress are studied. Galerkin and harmonic balance method are used to analyze the relation between the amplitudes and the frequencies of the tubes. The results show that the critical initial stress plays a significant control role in the amplitude-frequency curves. When the initial axial stress is less than the critical initial stress, DWCNTs have twice dynamical mode transitions corresponding to twice noncoaxial vibrations, however, when the initial axial stress is larger than the critical initial stress, the topological forms of the amplitude-frequency curve are changeable, which are corresponding to coaxial vibration or three possible noncoaxial vibration type.
An Improved Element Free Galerkin Method and Precise Time-Step Integration Method for Solving Transient Heat Conduction Problems
Authors: Zhang Xiao Hua , Xiang Hui
Published: October 2013

An improved element free Galerkin method coupled the precise time-step integration method in the time domain is proposed for solving transient heat conduction problem with spatially varying conductivity in the paper. Firstly the nodal influence domain of element free Galerkin methods is extended to arbitrary convex polygon rather than rectangle and circle. When the dimensionless size of the nodal influence domain is 1.01, the shape function almost possesses interpolation property, thus essential boundary conditions can be implemented without any difficulties for the meshless method. Secondly, the precise time-step integration method is selected for the time discretization in order to improve the computational efficiency. Lastly, one numerical example is given to illustrate the highly accurate and efficient algorithm.
Applications of GIS-Enhanced Networks of Engineering Information
Authors: Sergi Domenic Mario , Li Jie
Published: October 2013

The current manner in which engineering data, especially the structural details of buildings and infrastructure, is managed is highly inefficient and leads to a wide variety of unnecessary costs and risks. The revolution in Building Information Modelling (BIM) has given designers the ability to perform useful technical analysis on lifelike models and representations of a future structure. Consequently, the quantity of information being produced for a typical project, and the cost of producing that information, has increased substantially. This is driving a shift towards better systems of data storage and sharing. It is the contention of this report to demonstrate that structural design is a process which can be largely divided, automated, and outsourced. The conclusion reached is that a Building Information Model, when linked with a Geographical Information System (GIS), could provide enough information to conduct the entire design process. It is upon this basis that a radical new system for the post-construction storage and sharing of BIM is proposed.
Modeling and Simulation of CAS for Safety of Agricultural Products under Government Regulation
Authors: Liu Xiao Lan , Zhang Wu Yi
Published: October 2013

The safety of agricultural products is a hot issue concerned by the whole society. Safety system of agricultural products is regarded as complex adaptive system in this paper and after analyzing the attributes and behaviors of Government Agent and Farmer Agent, these Agents are all seemed as adaptive agents and their behaviors follow the stimulus--response model. Besides, rule of obtaining profit, rule of changing production strategy, rule of changing honesty and rule of farmer moving are also established. Then based on these rules, a computer program for the system model has been done by Java on Swarm. And through changing the relevant parameters and variables in the model, the measures to improve the safety situation of agricultural products in China are obtained.
Based on Model Reference Design of Lead Sheets Servo Winder Tension Control System of Electro-Hydraulic Design Simulation and Analysis
Authors: Xue Rong Ping , He Zu Shun , Hui Sen , Qiu Shi Ying , Yang Huan , Li Rong
Published: October 2013

In this paper,for the precision of tension control affects the products quality and performance of the device. In the coiling process while the tension control of the lead plate coiling machine is not stable, it will cause uneven thickness of lead sheet, affect the winding quality of lead sheets, and impact electrolysis efficiency. In this paper, according to the requirements of electrolytic process and the lead sheet winder actual working process, designing a tension control system in order to improve the precision of tension control.
Study on the Extraction Method of Wave Spectrum Based on WaMoSII Wave Measuring Information
Authors: Yang Xin Dong , Shi Ai Guo , Wang Zuo Chao , Yang Bao Zhang , Zhang Ben Hui
Published: October 2013

The wave measuring system can supply massive wave data information, but these data cannot be applied to navigation practice directly. This thesis set WaMoSII(The Wave and Surface Current Monitoring System) as an example , introduced the system and principle of WaMoSII, reprocessed the supplied wave measuring information, and established wave information database based on SQL Server. Through study on the MTF (modulation transfer function), it proved the distribution similarity between practical wave spectrum and the supplied frequency and spectral density information of WaMoSII, then we implemented the function that extracting relative spectrum information then transforming into absolute spectrum information automatically based on MATLAB program, it can provide convenience for wave measuring radar information for navigating application.
Sub-Pharmacophore Generation of JNK3 Inhibitors
Authors: Zhang Yan Ling , Wang Yuan Ming , Qiao Yan Jiang
Published: October 2013

The structure-based pharmacophore (SBP) model is consisted by the complementarity of the chemical features and space of the interaction between the ligand and receptor. The SBP models always have a high specificity which can only represent the specific class of the ligand. To simplify the models, sub-pharmacophore was then proposed in present study, and was expected to have and only have the most important or the common chemical features which play the major role in the interaction of ligand and receptor. Sub-pharmacophore should contain 4-6 features, the higher specificity with more features, and vice versa. The sub-pharmacophore was generated by the random combination of features from the structure-based models. With the MDL Drug Data Report database used as the testing database, a new metric CAI (comprehensive appraisal index), which integrated the metrics of E and A%, was defined and used to determine the best sub-pharmacophore model. C-Jun N-terminal kinase (JNKs) is one of the mitogen-activated protein kinase family, and widely involved in immune response and inflammatory response, and other pathological processes. JNK3 is mainly distributed in the brain and nervous system. In present study, twenty-five initial SBP models of JNK3 inhibitors were directly constructed from the Protein Data Bank (PDB) complexes by the LigandScout software. Then, 1018 sub-pharmacophore models were obtained from the 25 initial models. Finally, the best sub-pharmacophore was determined which was simplified from the initial model generated from the 3FI2 complex, and included four features: one hydrogen bond donor, one hydrogen bond acceptor, and two hydrophobic groups. The metrics of E, A% and CAI value of the best sub-pharmacophore model are 17.47, 31.15 and 5.44, respectively. The potential JNK3 inhibitors were then identified from Chinese herbs with the best sub-pharmacophore model, and 286 compounds were obtained.
Research on Quality Operation Management of MES Based on the ISA-95 Standard
Authors: Shi Jing Dan , Li Min , Zhang Qin He
Published: October 2013

In the process of research and practice about quality management informatization, there are quality issues such as different functions and system integration. Quality management of assembly shop is the research object, by referring to ISA-95 standard, solve above problem by discussing function structure of quality operation management system. It is standardization and normalization, easy to change and configuration and good integration, it plays an important role on research and practice of MES and quality management informatization development.
Research on Fault Diagnosis Simulation Training Method Based on Fault Tree with Following Scenes
Authors: Li Jin , Guan Xiao Wei , Guo Shi Bo , Hou Jian Hui , Bai Min
Published: October 2013

For resolving the obscurity and complexity problem of equipment fault diagnosis training, gave out a fault diagnosis simulation training method. Based on the fault tree theory, the method can create the training simulative scenes, by building up the mapping between the fault tree node and the simulative scenes node. With the training subject and complexity requirement, this method can control the randomness and complexity of the training sample, the simulative scenes also can improve the training effect. And the fuzzy reasoning result assessment method can give out the proper training mark.
A Non-Probabilistic Analysis Method on Reliability of Crack Propagation Life
Authors: Du Yong En , Wang Sheng Nan , Yan Xiao Zhong
Published: October 2013

Based on non-probabilistic reliability theory, a new non-probabilistic model of reliability is proposed in this paper. The new model which extends the traditional interval model is available for the non-uniform distribution of random variable and could be more widely used in practical application. A utility method to analyze the crack propagation life under given reliability is put forward based on the proposed model, and its theoretical basis is also proved by theory deducing. This simple and practicable method avoids complex integral operation and the errors caused by the hypothetic distribution form. Finally, the validity and efficiency of this method is verified by numerical examples.
Study of Constructed Wetland Plant Growth by Computer Image Processing (CIP)
Authors: Liu Xiao , Tang Ting Fang Zi
Published: October 2013

This paper developed a kind of non-destructive measurement for the growth process of constructed wetland plant: doing image acquisitions of constructed wetland plant regularly through digital camera imaging; introducing image files to computer through interface, displaying them on the screen of computer; developed constructed wetland plant image and growth information extraction software under Visual C++ compiling integrated environment, users could acquire plant contour (realized by image edge recognition) and plant size (characterized by top projected leaf area) through human-machine interactive operation; designed constructed wetland plant (Phragmites communis) experiment to analyze the biomass change during the non-destructive measurement process. The biomass had good correlation with manual measured individual plant height, which proved that computer image processing based non-destructive measurement can provide reliable predictions for plant growth parameters.
Visualization System for Tidal and Sediment Simulation in Coastal and Estuarine Areas
Authors: Xin Wen Jie , Luo Xiao Feng , Lu Chuan Teng , He Jie
Published: October 2013

A complete numerical simulation system includes mould-building, needed data preparation, calculation and demonstration. The system compiles by Microsoft Visual C++, with friendly interface and easily operation. The system can carry out 2D and 3D current, salinity and sediment. In the course of calculating, the real time change course of each physical quantity can be shown.
Simulation and Analysis of Water Table and Drainage Discharge under Controlled Drainage in a Field Experiment Using DRAINMOD Model
Authors: Yang Lin , Huang Jie Sheng , Wang Xiu Gui , Liu Jing Jun
Published: October 2013

A field experimental project was carried out in Jingzhou City, Hubei Province to research the effects of controlled drainage on groundwater table and drainage discharge. And used DRAINMOD model to simulate the designed experiment schemes. The results showed that the numerical results of the groundwater table from DRAINDOD model were quite similar to the practically measured results during cotton growth period, the correlation coefficients were more than 0.9, the simulation results are in line with the experiment results. The underground drainage discharge of each plot was passively correlated with controlled water level, while the surface drainage discharge was positively with it. The underground drainage discharge was larger than the surface. The total drainage discharge was also passively correlated with the controlled water level. The DRAINMOD model can provide good estimates of the groundwater table and the drainage discharge under controlled drainage.
The Development and Application of Meshless Method
Authors: He Yong , Zhang Jian Ming
Published: October 2013

Meshless method or mesh free method has many advantages. So far, there are more than ten proposed meshless methods, each has their respective advantages and disadvantages. This paper will focus on the main several meshless methods, we will make a comparison and analysis of their respective adaptation range, at the same time, we will discuss the construction method of typical meshless approximation functions, and summarize the development of the meshless method, development trend and prospects.
Extreme Transient Flow in Pumping System due to a Tripping Pump Disturbance
Authors: Cai Geng Wu , Zhang Li Xing
Published: October 2013

Taking a pumping station project with large scale centrifugal pumps as working example, an extreme transient flow in the pumping system caused by tripping pump due to electric supply failure was analyzed, and hydraulic disturbance or impulsion to the rest working running pumps were investigated by using the software of the Deltares WANDA 3.73. The results show that the rest running pumps in the system due to a sudden tripping pump disturbance are heavy disturbed when the tripping pump is suddenly failed from the pumping system. The flow rate and input power for the working pumps are greatly jumped shortly. The strongly transient impulsion to the pumping system is quite significant.
Numerical Investigation of Flow around a Triangle Cylinder Using a Multiscale Turbulence Model
Authors: Dong He , Gao Ge , Li Zhi Qiang , Tang Yang Yang , Xu Huan , Guo Jian
Published: October 2013

The unsteady flow around a triangle cylinder was simulated using the multiscale turbulence model based on the variable interval time average method. The numerical method used in this simulation is an unstructured staggered mesh scheme. The computational results show that the multiscale turbulence model can successfully simulate vortex shedding characteristics. The Strouhal number and time-averaged velocity profiles also agree better with experiments than that of the standard k-ε model.
Numerical Analysis of CO Concentration Distribution on Extraction Ventilation Type Tunnel
Authors: Guo Tao , Zhou Jun , Liu Xiao Nan , Shang Bo
Published: October 2013

The highway tunnel is a relatively closed space, then large amounts of motor vehicle exhaust emissions, especially CO, resulting in air pollution in tunnel. The project construction cost, operation cost, and pollutant concentration distribution in tunnel are most dependent on ventilation scheme. Usually have air extraction and inflatable type ventilation system. In this paper, a numerical simulation based on two-phase flow is used to study the effect of double air extraction ventilation system to CO concentration distribution in large tunnel. The method can effectively track the gaseous diffusion and the results show that the CO concentration is lowest in the middle area of two vents and the exit area of tunnel. The highest area of CO concentration located in vents below area and the middle area of tunnel.
A Lattice Hydrodynamic Model Considering the Following Lattice and its Stability Analysis
Authors: Han Xiang Lin , Ouyang Cheng
Published: October 2013

Incorporating the ITS in traffic flow, two lattice hydrodynamic models considering the following lattice are proposed to study the influence of the following lattice on traffic flow stability. The results from the linear stability theory show that considering the following lattice could lead to the improvement of the traffic flow stability. The modified Korteweg-de Vries equations (the mKdV equation, for short) near the critical point are derived by using the nonlinear perturbation method to show that the traffic jam could be described by the kink-antikink soliton solutions for the mKdV equations.