bluuebunny/crossref_metadata_2025 huggingface dataset:
Ancrage local et visibilité littéraire. Le cas des écrivains peu reconnus de la région Rhône-Alpes
Authors: Bois Géraldine
Published: September 2014

À partir d’une enquête auprès d’écrivains contemporains de la région Rhône-Alpes peu reconnus, cet article montre que l’ancrage local constitue une ressource pour leur existence publique, c’est-à-dire pour leur accès aux lieux de publication et de vente des livres, aux médias et aux lecteurs. Cet ancrage peut prendre la forme d’une référence à un territoire donné dans leurs écrits ou celle d’une insertion dans des réseaux de relations impliquant des acteurs locaux qui font connaître leur activité littéraire (journalistes, libraires et responsables de commerces variés, associations d’auteurs, organisateurs de salons du livre).
Des usages du jeu à la cantine
Authors: Comoretto Géraldine
Published: September 2014

Cet article propose une recension des jeux enfantins observés à la cantine lors d’une enquête ethnographique menée dans trois écoles élémentaires de la région parisienne. Qu’il s’agisse de la nourriture, du matériel de cantine ou des jouets, il montre de quelle façon les enfants mobilisent le jeu lors des repas au restaurant scolaire. Support de transgression des interdits, de réappropriation de cet espace-temps alimentaire et d’intégration au groupe de pairs, le jeu à la cantine offre un observatoire singulier des interactions enfantines.
L'histoire vivante médiévale. Pour une ethnographie du « passé contemporain »
Authors: Tuaillon Demésy Audrey
Published: September 2014

L’histoire vivante est une activité de loisir contemporain qui fait appel à la re-création de savoir-faire d’un temps passé. Elle oscille entre reconstitution de gestes techniques et vie quotidienne. Les pratiquants forment une communauté soudée autour de valeurs communes (patrimonialisation de connaissances historiques, transmission des savoirs, etc.). L’approche ethnographique permet de comprendre le fonctionnement du groupe et d’accéder au fondement de l’identité intra-communautaire. Cet objet d’étude donne à voir les réactivations du passé dans le présent, sous l’angle d’activités corporelles re-créées, fondées sur la transmission de savoir et savoir-faire. En ce sens, il questionne les approches intéressant l’ethnologie du contemporain.
Le narcissisme, la pulsion et l'objet
Authors: Roussillon René
Published: September 2014

L’auteur cherche à mesurer les effets de l’introduction du narcissisme et du moi sur la métapsychologie. Parmi tous ceux qui s’offrent alors à la réflexion il choisit de centrer son analyse sur trois thèmes : les effets sur la théorie de la pulsion et la question de l’introjection pulsionnelle dans le moi, la place de l’objet en regard du moi à partir de la question clinique de la mélancolie, enfin les conjonctures « narcissiques » qui conduisent aux formes extrêmes de l’anti-socialité.
Se déprendre du sensoriel pour éprouver ensemble. Une lecture de la construction du narcissisme chez le jeune enfant
Authors: Rosenblum Ouriel
Published: September 2014

Le cadre de la thérapie familiale psychanalytique entrepris avec cette famille, nous a offert l’occasion d’éprouver, d’observer et élaborer les différents niveaux entremêlés des états psychiques présentés au cours des séances, dans une perspective à la fois groupale, familiale, intergénérationnelle et individuelle. C’est au fur et à mesure que nous avons pu vivre ensemble les angoisses primaires et la détresse à l’origine du lien. Ces états, nous n’avons pu les expérimenter et les vivre en compagnie du groupe familial que par le bénéfice de l’outillage théorico-clinique mis à notre disposition, tel que le lien alpha, la psyché groupale, la transitionnalité, ou bien encore l’intergénérationnel et le transgénérationnel. Ce travail nous a permis d’aborder la découverte des processus narratifs généalogiques partageables par l’ensemble du néo-groupe issu de cette thérapie.
Corps, adolescence et psychose
Authors: Lombardi Riccardo , Pola Marisa
Published: September 2014

Sont abordés dans ce travail quelques aspects de l’évolution clinique d’un adolescent de 17 ans souffrant d’une crise psychotique, traité dans le cadre d’une cure psychanalytique à raison de 4 séances par semaine. Dans le contexte d’un arrêt du développement à l’adolescence, une explosion psychotique peut fournir une opportunité de relancer le processus de maturation. La psychose de l’adolescent est ici abordée à la lumière de la théorie du changement catastrophique de Bion – théorie selon laquelle la relation contenant/contenu prend un aspect explosif –, et de l’hypothèse de la relation corps/esprit avancée par Ferrari et Matte Blanco. Les auteurs soulignent le rôle de la négation du corps et des changements corporels qui jouent un rôle central dans la genèse du conflit psychotique de l’adolescence, et montrent comment la relation analytique peut offrir les conditions de rêverie déterminantes pour promouvoir la reconnaissance du corps, des sensations corporelles et des affects, en tant que pré-conditions de l’activation d’un système mental autonome.
Chaînes de référence et variations selon le genre
Authors: Schnedecker Catherine
Published: September 2014

Si les travaux portant sur la caractérisation globale des genres (cf. notamment les travaux d’Adam et Combettes pour le français ou de Biber & Conrad pour l’anglais notamment) s’accordent pour reconnaître que les expressions référentielles, tant au plan qualitatif ( i.e. des catégories grammaticales représentées (noms et pronoms)) que quantitatif (leur présence plus ou moins forte ou la répartition entre noms vs pronoms), jouent, parmi d’autres traits linguistiques, un rôle important dans l’identification et la caractérisation des genres discursifs, ils ne prennent pas pour autant en compte l’agencement systématique de ces expressions référentielles et leur contribution à la composition des chaînes de référence (CR). Pourtant, certaines études ont démontré que le paramètre du genre d’occurrence des CR en conditionne la composition. C’est ce que nous illustrerons à partir d’un double corpus de textes non narratifs et sans personnage dominant, constitué de recettes de cuisine et d’introduction de textes encyclopédiques consacrés à la présentation de villes. Y est étudiée la composition des CR sur la base des nombre et catégorie des expressions référentielles, de leur coefficient de stabilité, de la longueur et de la portée des chaînes et la distance inter-maillonnaire.
Référence et coréférence du pronom indéfini on
Authors: Landragin Frédéric , Tanguy Noalig
Published: September 2014

Le pronom indéfini on a une référence floue : il permet aussi bien une lecture inclusive qu’exclusive, personnelle que non-personnelle. Lorsqu’il désigne un groupe de référents, les limites de ce groupe sont souvent floues, on incarnant ainsi la forme de référence qui correspond le mieux à la notion de groupe flou , notion retenue dans notre projet pour rendre compte de certains référents pluriels. Après quelques rappels sur la syntaxe et la sémantique de on , nous présentons une étude de ses propriétés référentielles, en interrogeant, d’une part, sa propension à vraiment référer et, d’autre part, sa participation plus ou moins forte aux chaînes de référence. Nous proposons de distinguer plusieurs degrés de coréférence, afin de rendre compte de ce phénomène de référence floue lors de la délimitation et de la modélisation des chaînes de référence d’un texte.
Linguistique outillée pourl'étude des chaînes de référence : questions méthodologiques et solutions techniques
Authors: Mélanie-Becquet Frédérique , Landragin Frédéric
Published: September 2014

À travers le projet d’annotation de chaînes de référence dont il est question dans ce volume, nous montrons la complexité et la richesse des liens qui s’instaurent entre annotateur , outil et corpus . Cela est inhérent au fait que le travail d’annotation n’est pas linéaire. Il passe par la constitution d’un corpus – qui entraîne l’utilisation et la création de divers formats permettant la manipulation et la pérennisation des données, la mise en place d’une grille d’annotation – qui doit pouvoir être partagée par un groupe et être évolutive. Il passe aussi par l’annotation et l’analyse des données – où se confrontent corpus et grille d’analyse. À chaque étape peuvent émerger des problèmes et des nécessités de corrections. Ainsi, pour que l’outil remplisse sa pleine fonction d’aide à l’annotation, il sera pensé comme un instrument qu’il faut sans cesse faire évoluer.
L' « atelier du monde » peut-il evoluer ? Le cheminement des entreprises chinoises de l'emergence a l'innovation
Authors: Wei Zhao , Arvanitis Rigas
Published: September 2014

Si la Chine a connu une rapide croissance dans les 25 dernières années, en partie due aux politiques proactives du gouvernement qui a su exploiter l’avantage de faible coût de la main-d’œuvre, cela a permis de créer un environnement économique dans lequel les entreprises sont dépendantes des technologies fournies par leurs clients étrangers, sous une variété de formes de «  Joint-Ventures  », sous-contratation, production OEM, etc. La croissance future dépendra de l’amélioration technologique qui devrait s’appuyer plus sur la capacité propre des entreprises que sur les politiques industrielles. Cependant, développer une base technologique nationale endogène constitue un véritable défi pour l’industrie chinoise que nous détaillons dans ces pages. Classification JEL  : O30, O14, O38, O53, O10.
Creativity, growth, and nudge: the case of Shanghai
Authors: Jin Pan , Munier Francis
Published: September 2014

Depuis la réforme de l’année 1978, la performance économique de la Chine a été remarquable. Néanmoins, un nouveau tournant apparaît et certaines questions se posent. Le taux de croissance de la Chine peut-il continuer à ce rythme ? La Chine doit-elle abandonner son modèle historique fondé sur de faibles coûts de main-d’œuvre ou plutôt s’orienter vers la créativité ? Est-ce la bonne voie pour maintenir à la fois la croissance quantitative et améliorer la qualité de vie des citoyens ? Le but de notre article est de montrer que le passage du «  Made in China  » à «  Created in China  » conduit à une prise de conscience croissante de l’importance de la créativité comme un vecteur de progrès et de croissance économique. Nous définissons les caractéristiques fondamentales de Shanghai comme une ville créative, en essayant de montrer si Shanghai est fondée sur une forme de double voie. Nous précisons l’idiosyncrasie de la culture chinoise comme un avantage naturel pour la créativité et nous explorons le potentiel de la mise en œuvre d’une politique dite «  nudge policy  ».
Les combattants de Pavie. Octobre 1524 - 24 février 1525
Authors: Le Gall Jean-Marie
Published: September 2014

Cet article analyse l’expérience combattante des soldats qui participèrent au siège et à la bataille de Pavie entre octobre 1524 et février 1525. Les ressorts et les souffrances des combattants ainsi que les formes du combat sont examinés. Pour les mercenaires, allemands ou suisses, l’argent des paies et la perspective du butin sont un ressort essentiel ; la pénurie d’argent, cruciale chez les impériaux expose l’armée impériale à l’indiscipline, la rapine et la désertion. Toutefois, partagés dans les deux armées, ces mercenaires ont aussi le sens de la réputation de leur nation. Ils entendent rester fidèles à ceux qui les paient et envers qui ils sont engagés. Chez ceux qui ne sont pas mercenaires, et qui font la guerre à crédit, le service du Roi, la fidélité aux capitaines, le patriotisme chez les Espagnols, la fidélité à l’Empereur plus que la défense de liberté de la ville pour ses habitants mobilisent. Les combats prennent la forme des assauts meurtriers, puis d’un siège qui est émaillé d’escarmouches pour l’honneur, mais aussi par désir de trouver des vivres, de faire du butin, de prendre des prisonniers pour obtenir informations et rançons, et pour essayer de percer la ligne d’encerclement. Cependant, la bataille de Pavie ne fut pas une escarmouche qui dégénéra mais un affrontement voulu par les Impériaux, moins pour secourir Pavie que pour éviter la dispersion d’une armée impériale sous l’effet du manque d’argent. La bataille, traumatique vient mettre fin à la souffrance endurée pendant quatre mois, moins par manque de vivres ou par maladie que par le froid, le manque de bois et de vin, par l’épuisement physique provoqué par les chantiers du siège, enfin par l’épuisement psychologique résultant des bombardements, des harcèlements quotidiens et de l’attente. Cette lecture de l’expérience des soldats, faite à partir des rapports d’espion ou par les lettres contemporaines des événements, modifie la lecture rétrospective et réductrice de la bataille de Pavie comme défaite de la chevalerie.
The Energetic Macroscopic Representation Modeling of Super Capacitor Storage System and Capacity Configuration Research
Authors: Zhang Li Wei , Huang Wei Bo , Huang Xian Jin
Published: September 2014

Super capacitor bank operating characteristics have an important impact on the energy conversion efficiency and the construction cost of the hybrid energy storage system. To research the parameters and control properties of super capacitor in energy storage system, to establish a practical mathematical model and to propose the optimal design is important to improve the overall performance of the hybrid energy storage system. This paper presents the mathematical modeling of battery super capacitor hybrid energy storage system, studies the target parameters setting of hybrid energy storage system and the capacity configurations of super capacitor, and proposes an optimized design of the super capacitor bank. Finally, based on EMR verifies the theory.
An Optimal Design of Resonant Coils for Wireless Power Transfer System Based on Improved Artificial Bee Colony Algorithm
Authors: Liu Run Jie , Wang Jing , Shen Jin Yuan
Published: September 2014

Since the parameters of wireless power transmission system have strong coupling, the efficiency and receiving power can’t be controlled easily. This paper proposes to use improved artificial bee colony algorithm to finish the coils designing. Firstly, it deduces the load current and power expression of the receiver coils and analyses the factors that influence the efficiency and power; then it introduces the constraints of the system and establishes the nonlinear programming model. Secondly, by improving the search method of onlookers, it accelerates the convergence speed and increases the global search ability of artificial bee colony algorithm. Finally, it uses the improved algorithm to design the resonant coils of the system and fulfills the efficiency optimization under the condition of rated power. Then it sets up a simulation experiment platform. The results show the effectiveness of the modified algorithm.
Mechanics Analysis and Finite Element Solution on Tapper Assembly of Automobile’s Drive Axle
Authors: Li Yuan Yuan , Wang Meng , Guo Yu Chao
Published: September 2014

Mechanical research on structural strength is done for the driving taper assembly of automobile in this paper, of which the assembly process is also explained. Based on theoretical analyses of the connection between tighten torque and axle force, the analytical model of the main reducer is established. In order to get the stress field and displacement field of the main reducer after assembly, which is used to conduct strength check, finite element analysis method is introduced. Based on these results, some theoretic suggestions for design and manufacture of the main reducer are provided.
Research of Power Plant Boiler Control System Based on Compensatory Fuzzy Neural Network
Authors: Hou Guo Qiang , Zhao Wei Jie , Li Si Lan
Published: September 2014

Considering thermal power plant boiler’s nonlinear, large delay and time-varying, the paper proposes a compensatory fuzzy neural network control based on fuzzy control and neural network control. The compensatory fuzzy neural network is better than the PID controller and general fuzzy network controller in properties by using fuzzy inference and compensatory arithmetic. The paper makes a preliminary simulation using simulation tools of Matlab. And, the superiority of the compensatory fuzzy neural network control is proved by comparing the two kinds of simulation.
Simulation of PID Control of Belt Conveyor System in Coal Mine by an Improved Adaptive Genetic Algorithm
Authors: Yu Lei , Zhang Xu Long , Wang Feng
Published: September 2014

In order to improve the problem of premature and performance of optimization, an improved adaptive genetic algorithm is proposed for parameters optimization of coal mine belt conveyor PID controller by applying the number of iterations to the crossover operation and mutation operation of genetic algorithm. The simulation shows that the step response of the improved algorithm is superior to the traditional adaptive genetic algorithm.
Disturbance Observer in Robust DC Motor Control
Authors: Huang Hong Cheng , Zhang Yi , Deng Heng
Published: September 2014

The disturbance observer is a specific method of designing a two degree of freedom control structure to achieve insensitivity to modeling error and disturbance rejection. It has been successfully applied in a variety of motion control applications. In motion control, the major sources of uncertainties are friction, inertia, and external disturbances. These uncertainties should be taken into account by any robust motion controller. In this paper, this element is a PD (proportional-derivative) controller. The disturbance observer proves its advantages through the simulation and experiments. With disturbance observer, better tracking performance can be achieved with less control energy.
GaN-Based Very Narrow Band-Pass p-i-n Ultraviolet A Photodetectors
Authors: Wang Jun , Xie Feng , Wang Guo Sheng , Zhou Jie , Wang Wan Jun , Zhao Heng , Cao Guo Wei , Cui Nai Di , Guo Jin
Published: September 2014

The modeling of aluminum gallium nitride (AlGaN) p-i-n photodetectors response in the very narrow ultraviolet A (UV-A) range is reported in this paper. To obtain narrow-band response and high short wave rejection ratio, two AlGaN buffer layer with Al-content higher than that of the absorption region were designed between the substrate and un-doped AlGaN absorption layer to act under backside illumination as filter for short wavelength radiation. The band-pass of these a structure depends on the buffer layer Al-content. Electronic-band-structure calculations show that the blocking layer is the crucial parameter to achieve both a high short wave rejection ratio and a low dark current.
Respiratory Frequency Detection of Pigs Based on Area Feature Operator
Authors: Zhu Wei Xing , Yang Lei , Tang Liang
Published: September 2014

In order to detect and identify the abnormal respiratory of pig and provide real-time warning, in this paper we propose to use machine vision that apply the feature of area operator to detect the porcine respiratory frequency .The structure of the paper is as follows .Firstly the videos of pig standing in the piggery are captured through the use of camera and transmitted to the computer. Then on the MATLAB platform, the changing abdominal area of pig is extracted. Secondly the characteristics of adaptive and multi-resolution analysis of wavelet analysis allow us to remove the burrs of the area signal. Moreover, we use the peak point detection algorithm to acquire pig’s respiratory frequency during the monitoring time, which finally is transformed into breath rate. The experimental results show that the detection accuracy of respiratory frequency is higher than 92% for the abnormal breathing pigs.
The Influence of Tangential Roller Pressure on the Stability of Circular Saw Blade
Authors: Zhang Ming Song , Zhang Yi , Ke Jian Jun , Li Xiao Wei , Cheng Lian Bing
Published: September 2014

The finite element method was used to study tangential roller method impact on the stability of circular saw blade. Using 30 ° cyclic symmetric model is analyzed. The results show that the tension of the saw blade is not the same, and tensioning effect is different, when the tangential roller pressure is not same. At the same time, after tangential roller, the face run out of saw blade is small, which show that the smoothness of tangential roller is better.
The Design of a Micro-Parts Tracking System Micro-Vision-Based
Authors: Wu Ye Lan , Yang Fei , Zhang Zhi Jing , Liu Yang , Xie Tao
Published: September 2014

Because the assembly process of target identification and tracking technology are rarely involved, introducing target tracking technology into microscopic visual field is of great significance. The paper constructs the microminiature parts motion tracking platform based on microscopic visual. In order to overcome the limitations of small microscopic visual image view, it proposes a tracking algorithm combining a template matching with SIFT feature-based and Kalman prediction, which realizes the local template matching by using Kalman prediction and template update by using SIFT features. Experiment results show that the system can realize the dynamic tracking of small parts and meet the real-time performance and stability.
A Digital Text Watermarking for Word Document
Authors: Zhang Shi Ru , Meng Xiao Chun , Liu Xin Fu , Chen Wen Yuan
Published: September 2014

Text documents are the most dominant medium being used in the digital time and they require complete protection. A text watermarking algorithm based on Word Software (Microsoft Word or WPS Word) for document protection and copyright protection is proposed. The complete imperceptibility is achieved by the Font.Hidden attribute of Office Word. We implement this algorithm in C++ language and use a binary image as the watermark in the embedding algorithm. Experimental results demonstrate that this algorithm has completely imperceptibility, high robustness and can authenticate the copyright.
A Fast DOA Algorithm Based on Propagator Method and Rotation Array
Authors: Lan Xiao Yu , Guan Qing Yang , Zou Yan
Published: September 2014

It is known that computational complexity of the propagator method (PM) can be significantly smaller than those of MUSIC and ESPRIT because the PM does not require any eigenvalue decomposition (EVD) of the received data. However, most the algorithm based on PM requires more antenna elements than targets. In order to solve these issues, a novel low energy algorithm utilizing array base-line rotation for multiple targets estimation is proposed. By rotating two elements and setting a fixed time delay, even number of elements is selected to form a virtual UCA. Then, the received data of signals will be sampled at multiple positions, which improves the array elements utilization greatly. Simulations results verified the effectiveness of the proposed algorithm with high resolution and estimation accuracy performance.
Transmission Error Analysis of External Gear Drive Based on Form and Position Errors
Authors: Li Ke Ke , Bian Yu Shu , Liu Bing Dong
Published: September 2014

The key factors affecting the transmission error of gear mechanism are analyzed and the calculation formula of transmission error based on parts’ form and position errors is derived in this paper. Since the errors have different kinds of probability distributions, this paper calculate the expectation and variance of transmission error by statistical method, gives final transmission error value, and verify it by an example.
Borel-Cantelli Lemma for Sugeno Measure
Authors: Zhang Chun Qin , Zhang Hui
Published: September 2014

Sugeno measure is a fuzzy measure. In this paper, we derive the Borel-Cantelli lemma for Sugeno measure. This result is a natural extension of the classical Borel-Cantelli lemma to the case where the measure tool is fuzzy. The properties of Sugeno measure are further discussed. Then the Borel-Cantelli lemma will be proven on Sugeno measure space. This work generalizes the research and applications of the Borel-Cantelli lemma.
High Speed Data Transfer System Based on the USB3.0 Technology
Authors: Long Bang Qiang , Zeng Zhou Mo
Published: September 2014

A data acquisition system is introduced based on FPGA and USB3.0 to achieved high transfer rate. FPGA control AD and manage the DDR RAM buffer. The USB connect model is synchronous Slave FIFO. The multi data buffer queue structure is selected as the data structure. The testing results show that the average storage rate is 229.1MByte/s.When using two hard disk, the rate can reach to 289.8MByte/s.Some key factors affect the transfer rate is also discussed.
SVMMAP Modeling of SAR Imagery for Unsupervised Segmentation with Bootstrap Sampling
Authors: Ju Yan Wei , Zhang Yan
Published: September 2014

A spatially variant mixture multiscale autoregressive prediction (SVMMAP) model is present, which was applied to segmentation of SAR imagery. General process is as follow: at first, by Bootstrap sampling technique a small representative set of pixels is selected; then, expectation maximization (EM) algorithm and least square (LS) estimation were used to estimate the model, and minimum description length (MDL) rule was employed to choose classification number; at last, Bayes classifier was used to segment image. For a simulated image of size 256×256, a segmentation accuracy of 99.76% was achieved. Besides, quantitative assessment was also presented about segmentation quality of images.
Time Pressure Impact on En-Route Choice Behavior under Guidance Information
Authors: Gao Feng
Published: September 2014

This paper investigates time pressure impact on en-route choice behavior under guidance information. The impact of time pressure constraints is quite evident in en-route choice decisions. Understanding en-route choice behavior under time pressure and predicting route choices are important components in the overall goal of building a more reliable and efficient advanced traffic information systems (ATIS). A hybrid model to predict en-route driver routing decisions under guidance information is proposed. The model accounts for the observed changes in choice probabilities, including preference reversals as a function of time limit.
Development and Safety Research on Methanol-to-Olefins Process
Authors: Zhang Fan
Published: September 2014

The development and present situation of methanol to olefin (MTO) process in China was introduced, and the safety technical requirement based on the development of MTO was then analyzed. Based on a demonstration plant, the process was divided into several units, and the hazards of each unit were discussed, including reactor-regenerator system, which is the core of the whole plant, filled with a large amount of methanol and olefin mixture. The flammable parameters of gas system composed of methanol and olefins were investigated, and the allowable concentration of oxygen in reactor was discussed. The process of several units were simulated by specific software, the influence of variety of multiple parameters on process were then calculated. According to the operation of the demonstration plant, problems may be encountered in scale-up were proposed.
Partially Overlapped Channel Assignment Using Discrete Particle Swarm Optimization
Authors: Wang Ji Hong , Shi Wen Xiao , Cui Ke Qiang , Jin Feng
Published: September 2014

Wireless mesh networks are multi-hop wireless networks whose capacity decreases very fast due to interference from parallel transmissions on the same channel when using orthogonal channels. In order to further eliminate network interference and improve network capacity, partially overlapped channels are used to perform channel assignment, and a discrete particle swarm optimization (DPSO) based channel assignment algorithm using partially overlapped channels is proposed in this paper. Channel assignment for all links is mapped to position of particle, and DPSO is used to evolve and produce better channel assignment solutions. Simulation results show that network performances can be dramatically improved by properly utilizing partially overlapped channels, for example, the average end-to-end delay and the average packet loss ratio both can be decreased by at least 15 percent, and the network throughput can be improved by 12 percent or more.
Performance of Pavements Affected by Static and Impact Load
Authors: Vaitkus Audrius , Vorobjovas Viktoras , Gražulytė Judita , Tumavičė Aja
Published: September 2014

Pavements of airdromes, ports and container terminals, logistics terminals, industrial areas, parking lots, waste recycling areas and etc. are affected by static and impact loads. These kinds of loading differ from typical loading of roads. Due to it, pavements affected by static and impact load are design by special models according to the main distresses – permanent deformations and thermal cracking. For this purpose, there are discussed characteristics conditioning performance of pavements affected by static and impact load.
Safety Analysis for Aircraft One Engine Inoperation during Departure
Authors: Wang Zhong , He Yun Cheng
Published: September 2014

No advisory circular and regulations had been provided for the EOSID of basic RNP1 for departure procedure. However, for the aircraft safety and benefit of airlines, the problem needs to be solved before the basic RNP1 procedure would be used. This paper put a method try to solve the problem based on the RNP AR procedure wind condition and RNP APCH turning design rules. This method had been verified by the ground and flight validation. The test results indicate that the method satisfied the safety flight operation level.
The Relationship between the Nonpotential Parameters and Flare Eruptions of Solar Active Region NOAA11283
Authors: Ruan Gui Ping , Xu Hai Qing
Published: September 2014

We investigated the variation of magnetic helicity injection through the photospheric surface of the flare-productive active region 11283 during 5 days. The helicity injection was determined using line-of-sight magnetograms with 12-minute cadence taken by the Helioseismic and Magnetic Imager (HMI) onboard the Solar Dynamics Observatory (SDO). We found that a mount of positive helicity was injected during the five days corresponding with the rapidly sunspot clockwise rotation. Many flares have been produced by this active region from September 3 to 7, 2011. Among them, three big flares M5.3, X2.1 and X1.8 were observed. Using the vector magnetograms of the HMI with 12 minute cadence, We present temporal profiles of non-potential parameters. We find that the extreme value of twist parameters in the shear region R has correspondence with the flare peak time.
Analysis of the Acceleration Sensor Effect of Castellated Triple Layer Piezoelectric Bimorph
Authors: Zhang Hao , Xu Liang Jun
Published: September 2014

Symmetrical triple layer piezoelectric bimorph is commonly used as sensing element or actuation element. When used as acceleration sensing element, the sensitivity of the bimorph is desired to be high. Modifying size and piezoelectric materials is a commonly used method for the purpose of increasing bimorphs’ sensitivity. In this paper, a method of increasing bimorphs’ sensitivity by fabricating castellated structure on the surface of the bimorphs’ metal beam part is presented, and the model of the castellated bimorph is established by FEA.
Analysis the Concentrations of Toxic and Harmful Gases in Ventilation of Underground Caverns
Authors: Su Mei Wei , Xie Xian Ping , Li Jian Gong , Wang Ting Jun , Tan Xing Yu , Yin Xiao Yu , Luo Wen Gui , Cui Chao
Published: September 2014

For ventilation of underground cavern construction, analysis and research the state of motion of the gas in the ideal state and ventilation processes derived the formula of the concentration changes during the construction ventilation toxic and harmful gas diffusion reveals the variation of the diffusion of toxic gases, and engineering examples to verify the theoretical analysis. At the same time, simulation analysis the concentration changing curve of toxic and harmful gas, obtained the ventilation of cavern under different ventilation. The results show that ventilation mode of a constant amount has some shortages in energy efficiency.
Development of Non-Destructive Inspection System for Grinding Burn-in-Process Detection of Grinding Burn
Authors: Ito Ryo , Mukaide Naomasa , Azuma Takayuki , Soma Shinji , Murakami Shinji , Kuriyagawa Tunemoto
Published: September 2014

This study was performed to develop a non-destructive inspection system to detect grinding burn, which is capable of quantitative 100% inspection inside a production line. An eddy current sensor, which has advantages of short inspection time and low cost, was used. It was shown that the grinding burn detection technique had been developed and is possible to detect grinding burn by using this technique, in the 1st report1) and the 2nd report2). In this report, an experiment of in-process detection of grinding burn was conducted, by applying the grinding burn detection technique which we have developed. The eddy current sensor has been combined with an in-process gauge in order to keep the clearance between the sensor probe and the work piece constant. It was shown that grinding burn can be detected successfully during cylindrical machining.
Machining Characteristics in Cylindrical Blasting of Micro Grooves and Performance of Herring-Bone Bearing
Authors: Fukushima Taketo , Ohashi Kazuhito , Fujihara Masahiro , Onishi Takashi , Tsukamoto Shinya
Published: September 2014

The micro patterning on a cylindrical surface is conventionally carried out by electrochemical machining, chemical etching, cutting and so on. However, there exists some problems in machining dimensional errors and tool lives. On the other hand, blasting is expected as one of micro fabrication methods and progresses to apply for machining of hard and brittle materials. The purpose of this study is to develop the micro blasting technique for patterning of micro herring-bone grooves on spindle surfaces of the fluid dynamic bearings. Then, machining characteristics in blasting of rotating workpieces are experimentally investigated, analyzing stock removals, burr heights and groove shapes. In addition, micro herring-bone grooves are patterned on spindle surfaces by blasting and the performance of herring-bone bearings are evaluated. The herring-bone bearings with micro grooves patterned on a spindle surface by blasting have enough performance, compared with conventional ones.
Evaluation of Grinding Performance by Mechanical Properties of Super Abrasive Wheel - Relationship between Modulus of Rupture and Critical Grain Holding Power (2nd Report)
Authors: Sawa Takekazu , Nishikawa Naohiro , Ikuse Yasushi
Published: September 2014

This study was examined about the relationship between the fillers added to the grain layer of a resinoid bond diamond wheel and mechanical properties, the grade, the grinding performance. In the abrasion test using a constant pressure grinding, it was shown clearly that the critical grain holding power changed by kinds of fillers. On the other hand, in the constant cut surface grinding, the grinding interval was evaluated based on the grinding force. And, it was confirmed that the grinding interval changed by kinds of filler. Also, it was found that the characteristics of truing and dressing changed by kinds of filler. In addition, Young's modulus and bending strength of the grain layer of a resinoid bond diamond wheel was measured by three point bending test and ultrasonic pulse method. In the results, it checked that the mechanical properties such as bending strength and Young's modulus of a grain layer changed by kinds of filler. And, the modulus of rupture was calculated from the Young's modulus and bending strength.The result of having compared the modulus of rupture with the critical grain holding power, it was found that the modulus of rupture and the critical grain holding power have good correlation. Namely, the critical grain holding power of a resinoid bond diamond wheel can be evaluated by the modulus of rupture. Furthermore, it was shown that the grinding performance may be able to be predicted by the modulus of rupture of a grain layer of a resinoid bond diamond wheel.
On the Profile and Microstructure Variations of Grinding-Induced Hardening Layer in A Cylindrical Workpiece
Authors: Liu Mei , Nguyen Thai , Zhang Liang Chi , Wu Qiong , Sun Da Le
Published: September 2014

Grinding-hardening is a thermo-mechanical process capable of simultaneous material removal and surface enhancement. However, there are difficulties in dealing with cylindrical workpieces, because of the complex 3D-helical movement of the grinding-induced heat source. This paper investigates the effects of some key grinding parameters on the profile and microstructure variations of the hardened layer generated by a traverse cylindrical grinding, both experimentally and numerically. It was found that the ratio of the longitudinal wheel feed to the rotational speed of the workpieceRis most influential on the hardened layer profile. A largerRresults in a thicker hardened layer but a more pronounced discontinuity of two adjacent hardening zones. Although a smallerRyields a relatively thinner hardened layer, the non-uniformity could be minimised by the overlapping of the grinding heating. The microstructure of the hardened layer can be altered by the tempering in subsequent grinding heating. A thermal analysis with the aid of the finite element method in conjunction with an experimental microstructural examination showed that the temperature distribution in the tempered region would lead to a variation of the precipitated carbide, and that a higher tempering temperature could result in a higher degree of the carbide precipitation and a more significant reduction of hardness.
Laboratory Comparison of SMART*CUT Picks With WC Picks
Authors: Shao W. , Li Xing Sheng , Sun Yong , Huang Han
Published: September 2014

Application of polycrystalline diamond compact (PDC) based cutting tools for hard rock excavation in mining and construction industries has increased significantly in recent years due to their super hardness, superb thermal conductivity and long life durability. Super Material Abrasive Resistant Tool (SMART*CUT) technology has been developed by CSIRO (Commonwealth Scientific and Industrial Research Organisation) in the last 15 years, which includes the replacement of tungsten carbide (WC) tips of the conventional picks with thermally stable diamond composite (TSDC) tips, attachment of the TSDC tips to steel tool bodies with CSIRO’s worldwide patented bonding technology. The wear characteristics of TSDC cutting elements have been investigated previously. In this paper, the preliminary results of cutter forces and resultant angle of SMART*CUT picks were compared with that of traditional WC picks. A tri-axial force dynamometer and a data acquisition system were used to measure the cutter forces. Besides, the cutting area temperature during cutting process was continuously measured by a FLIR SC7600M thermal infrared camera and the recorded data were processed by Altair Software.
High Speed Machining Method of Large-Size Precision Freeform Mirror
Authors: Kirino Okiharu , Nakagawa Hiroyuki , Kirino Shigeru , Kataza Hirokazu
Published: September 2014

This study describes the non-rotationally symmetric diamond turning (XZC turning) for producing large-size precision freeform mirror. This is a high speed machining method as compared with the traditional XYZ diamond milling or fly-cutting. Moreover, the application of this method is a key factor in the development of the ultra-precision light-weight freeform mirror for outer space use. This report introduces these cutting-edge approaches.
Small Hole Drilling for Polyphenylene Sulfide (PPS) - Influence of Depth-of-Cut on Burr Formation
Authors: Nomura Mitsuyoshi , Suzuki Kouta , Wu Yong Bo , Fujimoto Masakazu
Published: September 2014

Cutting technology is one of the important methods to fabricate small-sized precision components in the semiconductor, electro-mechanics, and automobile industries. This paper focuses on high efficiency machining of small hole drilling for PPS (Polyphenylene Sulfide). In this paper, drilling experiments were designed to investigate the influence of the depth of cut on the burr formation. The experimental results obtained are as follows, (1) The thrust force and radial force increase with the increase in feed per revolution and depth-of-cut. (2) On the prevention of burr formation, the step feed is better than the non-step feed. Also, the burr formation decreases with the increase in the feed per revolution. (3) The hole straightness increases with the increase in depth-of-cut.
Investigation Performance of AlCrN_Based Coated Broaching Tool in Broaching of Gas Turbine Material X12CrMoWVNbN1011
Authors: Liu Zhi Qiang , Chen Ming , Wang Cheng Dong , An Qing Long , Ge Chun Xin , Guo Guo Qiang
Published: September 2014

Pull broaching fir-tree slots of gas turbine is one of the most productive precision machining processes when machining simple surfaces or complex contours. Tool edge chipping and wear of uncoated broaching tool become a serious problem in the currently broaching of gas turbine discs. Therefore, tool coating can be used to improve the wear resistance of broaching tool. AlCrN-based coatings have been developed as a high hardness coating for cutters due to excellent resistance to oxidation which is higher than that of conventional coatings. However, few researches had paid attention to investigating AlCrN-based coating tool performance in the broaching process, especially in machining of heat-resisting material of heavy-duty gas turbine discs. In this paper, experiments of broaching heat-resisting material X12CrMoWVNbN1011 were investigated. In order to obtain suitable and ideal broaching tool, the AlCrN coated or uncoated T15 broaching tools were also compared. Cutting force, cutting temperature, and tool wear were measured in the broaching experiments. Results showed that: (1) with a little changed cutting load and tool edge radius, AlCrN-based coating was found to have more significantly influence in improving the tool life as comparing to uncoated tool. The similar wear forms was observed by comparing coated tool and uncoated tool. The conclusions of the study can help to improve heavy-duty gas turbine disc broaching process and broaching tool. (2) Owing to AlCrN coating’s unique combination of heat resistance and hardness, broaching tool could reach higher cutting performance levels. AlCrN coated tool compared with uncoated tool have much better performance in term of cutting strains or cutting temperature.
Multi-Hole Drilling Method by Abrasive Blasting for CFRP and Composite Materials: Investigation of a Processing Model Based on Abrasive Erosion Phenomenon
Authors: Fukagawa Hitoshi , Hirogaki Toshiki , Yamada Ikuko , Kato Atsushi , Shimizu Keisuke , Nishikawa Kousuke
Published: September 2014

Composite materials, such as CFRP, are hard-to-cut materials but their specific strength is useful. Drill tools are usually used to generate small holes of 1-2 mm diameter, but tool abrasion occurs early, causing problems of processing costs. Comparing other processing methods, it was revealed in the previous report that it was possible to effectively generate large quantities of small size holes using blasting. However, there have been many unknown mechanisms about this blast processing. In the present report, we investigated the material-removing mechanisms of the blast from the viewpoint of the erosion abrasion, considering the most suitable method through changing work materials and processing conditions such as abrasive and pressure.
Wear Characteristics of Binder-Less Nano-Polycrystalline Diamond and Cubic Boron Nitride
Authors: Sumiya Hitoshi , Harano Katsuko
Published: September 2014

Wear characteristics of binder-less (single-phase) nanopolycrystalline diamond (NPD) and cubic boron nitride (BL-PcBN) were investigated by rubbing them against various ceramics such as SiO2, Si3N4, Al2O3 and SiC. The wear rates of NPD and BL-PcBN against SiO2 and Si3N4 at high speed rubbing (280-360 m/min) at a loading pressure of 55 MPa (starting condition) were considerably high, indicating the main wear process is a chemical reaction. BL-PcBN specimens were found to be worn at much higher (more than ten times) rates than NPD, suggesting that cBN highly reacts with these ceramics in comparison with diamond under the experiment condition.
Investigation of Grinding Fluid Supply Parameters on Workpiece Surface Integrity
Authors: Xiu Shi Chao , Zhang Xiu Ming , Jiang Ang , Shi Xiao Liang , Li Shu Jun , Li Xiao Peng
Published: September 2014

The grinding heat directly affected workpiece surface in the grinding process and it might produce some defects such as crack and burn. Meanwhile wear debris generated in the grinding process could easily embed grinding wheel blowhole and caused clogging and passivation. So it was particular important to avoid defects and improve the grinding workpiece surface integrity effectively. This paper established an incompressible turbulent fluid spray model based on the study of the existing airflow and the grinding fluid distribution in the grinding zone. Then according to different grinding fluid supply parameters established the two-phase gas liquid spray flow model by using CFD(computational fluid dynamics), simulated and calculated the model, compared the mass flow rate of the grinding fluid flow field with different spray distances, heights, speeds and spray angles in the grinding zone and determined the most reasonable spraying jet position. At the last, through researching on the workpiece surface integrity experiment, it provided an experimental basis to determine the most suitable spray jet position and verify the rationality of supply parameters selection.
Precision Machining of Parabolic Mirror Made of Low Thermal Expansion Ceramic
Authors: Okada Mutsumi , Takagi Akihiro , Suzuki Hirofumi , Sugawara Jun
Published: September 2014

Needs of precision optical mirrors are increasing in the astronomical space telescope. In the space having extremely large temperature differences, the aspheric optical mirror made of low thermal expansion ceramic is very effective in reducing the focus errors due to the thermal expansion. In order to develop the mirror made of a new low thermal expansion ceramic, parabolic mirror of the ceramic is ground and polished to test. By the grinding and polishing test, changes of form deviation profiles and surface roughness profiles are evaluated and machinability of the proposed ceramic is studied.
Removal of Ion Irradiation-Induced Affected Layers from Diamond Cutting Tools to Improve Machining Performance
Authors: Kawasegi Noritaka , Ozaki Kazuma , Morita Noboru , Nishimura Kazuhito , Sasaoka Hideki
Published: September 2014

A focused ion beam (FIB) is an effective means of fabricating micro-to submicro-scale shapes on diamond cutting tools. However, ion irradiation of diamond tools causes ion implantation, defects, and non-diamond phases, all of which degrade the tool performance. To remove affected layers from FIB-irradiated diamond tools, heat treatment in air was applied, and the effect of the heating parameters on the etchability of the irradiated area was investigated. It was found that the affected layer could be etched and removed from the diamond tool surface, even at 500 °C. In machining experiments on aluminum alloy and nickel phosphorus, machining performance was improved by the applied heating technique, and the cutting forces and machined surfaces were similar to those obtained with the non-irradiated tool. These results indicate that the proposed heating technique is effective for diamond cutting tools shaped by FIB.