bluuebunny/crossref_metadata_2025 huggingface dataset:
L'action publique en direction des ménages monoparentaux [Une comparaison France/Royaume-Uni]
Authors: Martin Claude
Published: July 2013

Qui doit nourrir l'enfant quand les parents sont séparés : la mère, par son travail voire en reconstituant un couple avec un nouveau pourvoyeur de revenu ; le père, en respectant son obligation alimentaire ; la collectivité (locale, nationale) par une politique de droits sociaux ou d'assistance ; ou une combinaison de ces différents acteurs ? Telle est la question posée par cet article, qui tente de comprendre et de comparer la manière dont a été posé ce débat et dont ont été justifiées les politiques et les mesures sociales en France et au Royaume-Uni. L'auteur propose de repérer les évolutions, les hésitations, et finalement les dominantes qui s'installent ici et là, pour des raisons qui n'apparaissent qu'au fil du temps et de controverses. Si la comparaison entre les deux pays s'était arrêtée à la période 1970-1975, on aurait pu en conclure que les politiques à l'égard des situations monoparentales au Royaume-Uni et en France étaient assez proches. Quinze ans plus tard, on est frappé par l'écart considérable qui s'est creusé entre ces deux trajectoires nationales de protection des familles monoparentales.
Les vacances familiales sans départ [Contribution à une sociologie de la non-pratique]
Authors: Périer Pierre
Published: July 2013

A la notion de vacances est le plus souvent associée, tant dans les représentations collectives que dans la logique des politiques d'aide sociale, l'idée de départ. Cette vision dominante est aussi celle qui circonscrit le temps des vacances à ses manifestations pratiques, abordées principalement à partir des destinations et des formes de séjours des vacanciers. Ce faisant, cette approche néglige de prendre en compte ce qui précède (rêves et projets) ou prolonge (récits et souvenirs) le moment même des vacances et ne permet pas d'apprécier les significations du non-départ. Les déterminants socio- économiques sont invoqués, souvent sans autre forme d'analyse, pour expliquer la sédentarité estivale. Sans sous-estimer l'impact des nécessités économiques sur les pratiques vacancières, une enquête réalisée auprès d'un échantillon d'allocataires ayant droit aux bons vacances de la caisse d'Allocations familiales montre, outre la prégnance des valeurs vacancières dans la vie quotidienne, une grande diversité de rapport au temps de vacances chez les familles non partantes. Certaines familles font preuve d'une relative autonomie de fonctionnement et de valeurs, non par le fait qu'elles ne partent pas mais parce qu'elles opposent au modèle du séjour vacancier d'autres goûts et d'autres pratiques d'une culture populaire d'occupation du temps.
La spécificité des politiques familiales en Europe [Une application menée à l'aide de microsimulations]
Authors: Jeandidier Bruno
Published: July 2013

La spécificité de la politique de prestations familiales française par comparaison avec celles menées dans trois autres pays européens, la Belgique, l'Irlande, le Luxembourg, est analysée à l'aide d'une microsimulation qui consiste à calculer fictivement, pour un échantillon de ménages français réels, l'avantage familial monétaire (prestations familiales et avantage fiscal familial) qu'ils percevraient si ces politiques familiales étrangères étaient mises en oeuvre en France. Ainsi, en raisonnant à structure démo-économique constante, on peut mettre en valeur les spécificités propres aux politiques de prestations familiales qui font l'objet de la présente comparaison. Sont analysées successivement, puis simultanément, les spécificités suivantes : le degré de générosité globale, l'ampleur de la redistribution verticale, selon le niveau de vie, et l'ampleur des différents types de redistributions horizontales, selon le nombre d'enfants, l'âge des enfants, selon que les parents travaillent ou non, que l'enfant est ou non handicapé, que la famille est ou non biparentale.
La force symbolique de l'allocation de parent isolé
Authors: Aillet Véronique
Published: July 2013

Que deviennent les bénéficiaires de l'allocation de parent isolé (API) après la fin de leurs droits à cette prestation ? Une enquête a été menée auprès d'un échantillon raisonné, mais non représentatif, d' ex-bénéficiaires ayant perçu l'API pendant au moins six mois. Elle montre qu'entre un et trois ans après la fin de l'allocation, la plupart continuent de vivre seul(e)s et une minorité seulement a un emploi, souvent précaire. Ces résultats masquent un aspect important du dispositif auprès de l'individu : la force symbolique de l'allocation. Cette dernière répond bien, en effet, à la nécessité de se ressourcer et se reconstruire lorsque l'épreuve de la rupture ou de l'isolement a été vécue de façon douloureuse. De cette façon, elle remplit une fonction réparatrice, préparant en cela à une éventuelle insertion professionnelle. Au-delà du contexte particulier dans lequel elle intervient, l'API fait référence et contribue à une image de soi positive en tant que parent. Ce qui permet de rompre ainsi avec l'idée d'impact potentiellement dévalorisant du statut de dépendance à une aide. Mais ce statut dévalorisé est réactivé dans certains cas lorsque le parent perçoit le RMI après la fin de droit à l'API.
Les allocations familiales et l'Algérie coloniale A l'origine du FAS et de son financement par les régimes de prestations familiales
Authors: Math Antoine
Published: July 2013

Essentiellement assuré par des contributions de la CNAF, le financement du fonds d'action sociale pour les travailleurs immigrés et leurs familles (FAS) fait régulièrement l'objet de débats et de contestations. Pour tenter de comprendre les tenants et les aboutissants de ces débats et pour apporter un éclairage complémentaire, il est nécessaire de revenir à l'histoire en retraçant les origines du financement du FAS par les organismes chargés de verser les prestations familiales. En remontant aux débuts du FAS, créé en 1958, mais également à ce qui avait pu préfigurer cet organisme, les raisons de ce financement deviennent plus claires. Peu reconnu et souvent oublié aujourd'hui, ce choix politique consistait à justifier la contradiction choquante entre la logique salariale et contributive originelle des allocations familiales et les mesures discriminatoires envers les Français musulmans d'Algérie lors de la période de l'Algérie coloniale. Le principe du versement des allocations familiales à tout travailleur chargé de famille était contredit par les discriminations excluant le travailleur algérien du droit commun aux prestations familiales.
Les indicateurs de gestion comme construction sociale : l'exemple des CAF
Authors: Boussard Valérie
Published: July 2013

Une analyse du système d'évaluation de la performance des caisses d'Allocations familiales (CAF) montre que, malgré la richesse des propositions théoriques des chercheurs et consultants, on assiste souvent à une inertie du système de gestion et de ses indicateurs. Selon l'hypothèse que les systèmes d'indicateurs de performance sont autant des construits techniques que des construits sociaux, il est alors possible de démonter le mécanisme générant cette inertie. Dans le cas de deux CAF observées, le système d'évaluation de la performance se focalise sur une seule mesure, celle de la production, alors que d'autres indicateurs seraient plus pertinents. Pourtant, plusieurs logiques d'acteurs conduisent à renouveler l'utilisation de l'indicateur de production car il permet à la fois de stabiliser des jeux stratégiques et de maintenir des identités collectives. Cette construction sociale des indicateurs de gestion permet d'envisager sous un autre jour la difficile percée, au sein des CAF, d'un débat réel pour construire la notion de qualité.
Savoirs et normes sociales en matière de petite enfance
Authors: Neyrand Gérard
Published: July 2013

La légitimité du discours scientifique masque le caractère hypothétique des énoncés produits, alors même que la médiatisation de ce discours tend à le constituer en discours de la vérité. Sans doute plus qu'ailleurs, les savoirs produits dans le champ de la petite enfance servent à étayer une position normative quant aux comportements de parentalité, qui n 'est pas sans résonance idéologique. La théorie de la carence affective qui, après la guerre, a fait rupture en marquant l'irruption de la psychanalyse dans l'approche pédiatrique, a aussi consacré le primat de la relation maternelle à l'enfant. Il faudra attendre les années soixante-dix pour que cette problématique soit relativisée et que soient valorisés l'accueil collectif et les autres acteurs de la socialisation du bébé, notamment le père. C'est alors que les techniques de procréation médicalement assistée vont mettre en perspective notre représentation de la filiation et susciter une réflexion politique et morale sur le sens de la parenté, à une époque où s'affirme une image de l'enfant-sujet à multiples facettes: celles de l'épanouissement, de la performance et de la vulnérabilité.
Une réflexion économique sur le lien famille-chômage et la constitution du couple
Authors: Solaz Anne
Published: July 2013

Cet article présente une analyse de l’influence du chômage sur la constitution du couple en France à partir de l’enquête Situation familiale et emploi réalisée par l’INED en 1994. Face au constat de la relative rareté des études économiques et démographiques reliant le chômage et la famille, des hypothèses explicatives sont avancées. Une étude bivariée sur les durées entre la fin des études et le premier emploi ou la première mise en couple met en évidence un sens de «causalité» prioritaire en début de cycle : le premier emploi a plus d’effet sur la première mise en couple que l’inverse. Enfin, la vie en couple est moins probable à tout âge quand l’individu est au chômage. Un emploi est généralement une condition nécessaire à l’entrée dans la vie conjugale pour les hommes. Une situation de précarité ou de chômage est un peu moins défavorable pour les femmes. Il est possible que les individus en situation précaire soient moins exigeants sur le marché matrimonial.
Rente et révolution
Authors: Puente José Manuel , Devineau Julie
Published: July 2013

Cet article présente l’évolution des variables macro-économiques fondamentales du Venezuela au cours de la période 1999-2011, de façon à démontrer que la politique économique mise en œuvre et l’importante rente pétrolière reçue pendant la présidence d’Hugo Chávez ont exacerbé le modèle d’économie rentière hérité des gouvernements précédents. On soutiendra en particulier qu’au cours de cette période, la dépendance envers la rente pétrolière s’est accrue, le taux de change s’est fortement apprécié (le « mal hollandais »), ce qui a provoqué un affaiblissement de la production exportable, spécifiquement des biens industriels et agro-industriels, un boom des importations qui a accentué le caractère mono-exportateur et rentier de l’économie, et l’accroissement du pouvoir discrétionnaire de l’Etat dans l’utilisation de la rente pétrolière.
Effects of training with different interval exercises on horses used for show jumping
Authors: Munk R. , Møller S. , Lindner A.
Published: July 2013

Studies examining the effect of conditioning programs to improve the fitness of horses used in show jumping (Show Jumpers) are not available. Therefore, the effects of conditioning with 3 different interval type exercises were examined on 20 Show Jumpers divided into 3 groups matched by age and jumping performance level. Horses participated in 2 conditioning periods (CP) each of 6 weeks separated by 6 weeks without interval exercise. Training during a CP was the same for all horses but for one specific interval type exercise bout every 5th day. The specific interval exercise bouts were termed Gallop (n=13), Sprint (n=14) and Jump (n=13) and consisted of 4 times 90 s sessions each: Gallop were runs at the heart rate producing a blood lactate concentration (LA) of 4 mmol/l, Sprint were accelerations on the long-sides and decelerations in the short-sides of an arena, and Jump consisted of jumping obstacles of increasing height. Horses were submitted to 3 different standardised exercise tests (SET) before and after each CP: SETv4 (v4 is the speed at which a blood LA of 4 mmol/l is determined), SETjump (16 one jump obstacles in an elliptical course) and SETcourse (11 obstacles at the level of individually adjusted maximal degrees of difficulty). SETv4 showed that the v4 increased more in the Gallop (n=7) and Jump groups (n=7) than in the Sprint group (n=6). These results are based on fewer horses than the others because weather conditions did not allow for running this SET after the second period of conditioning. SETjump showed that blood LA and the level of fatigue estimated by the rider decreased after all interval type exercise bouts. A subjective fatigue score used by the rider in SETcourse improved regardless of the conditioning type of the horses, while their jumping technique improved with Gallop and Jump interval exercise only. Also the blood LA after SETcourse was lower after conditioning with Gallop and Jump interval exercise and the jumping technique improved according to an experienced independent observer in horses conditioned with Gallop, remained the same with Jump and decreased with Sprint interval exercise. In conclusion, all interval type exercise bouts examined improved parameters of fitness, but Gallop and Jump interval exercise improved more parameters than Sprint interval exercise bouts (v4, blood LA and fatigue level assessed by the rider after Gallop and Jump interval exercise; blood LA and fatigue level assessed by the rider after Sprint exercise), and Gallop as well as Jump interval exercise bouts improved the jumping technique too (as assessed by the rider and the independent observer for Gallop, and by the rider only after Jump interval exercise).
A case control study to investigate risk factors associated with horse falls in steeplechase races at Cheltenham racetrack
Authors: Williams J. M. , Marks F. , Mata F. , Parkin T.
Published: July 2013

To date epidemiological reviews of fall risk in horse racing have applied a general approach to analysis integrating different grades, type of race and various racetracks. This study aimed to investigate if increasing specificity in analysis (one course and type of race) would expose the same risk factors for horse falls. The purpose of the study was to apply the principles of epidemiology to predict factors that increase the risk of a horse falling in steeplechase races at Cheltenham racecourse. Relevant factors related to horse falls were identified and collated from the Racing Post website for all steeplechase races run at Cheltenham between 1990 and 2010. Subsequent uni- and multivariable single-level and mixed effects logistic regression models were developed using ‘fall’ or ‘no fall’ as the dependent variables. The chance of a steeplechase race containing a minimum of one horse fall at Cheltenham racecourse is increased by 22% for each additional runner in the field and reduced by 86% for every horse that is pulled up during the race. Going and speed were not significantly associated with horse falls. Retrospective analysis of fall risk for a specific race type and course has exposed different risk factors than those previously found in generalised studies. Analysing specific racetracks has the potential to more effectively underpin the development and assessment of racecourse strategies to reduce fall risk to promote equine welfare.
Introduction of a Quality Management System for Vocational Education and Training in Slovakia
Authors: Podařil Martin
Published: July 2013

<span style="font-size: 10.0pt; mso-bidi-font-size: 9.0pt; font-family: "Times New Roman","serif"; mso-fareast-font-family: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US">The issue of the quality of vocational education, school, teaching and learning of students should be in the interests of all participants in the education process. The quality of secondary school is the critical element in enhancing the attractiveness of vocational education in Slovakia. Finding an offcial scale that would provide such a information in Slovakia is unfortunately impossible. There is no system for evaluating the quality of vocational education and training (VET) at vocational schools. There are no clearly defined criterias, rules or any standards. Speaking of an assessing the level of quality of vocational education on the base of existing outcomes in formal education such as monitoring, final exams, graduation exams is resulting in one-sided evaluation and does not address the systematic coherence and complexivity of this issue. An essential step os to create a functional system of evaluation of VET in Slovakia. The article describes importance of VET which can play a central role in preparing young people for work, developing the skills of adults and responding to the labour market needs of the economy and presents the project Model of the quality evaluation of vocational education and training at secondary vocational schools in Slovakia that is currently ongoing on many secondary vocational schools in western Slovakia and Austria. The aim of the project is to develop and apply an open, flexible and adaptable quality management system. The article not only presents indicators for evaluation but also the way how can be evaluated each of them. The effort of this project is also to create specialized portal with support services that provide transparent, clear and specific information from this area of interest. The introduction of the evaluation framework, the selection of indicators that take established criteria into consideration and assembling of the scale is therefore more than relevant and required<span style="font-size: 10.0pt; font-family: "Times New Roman","serif"; mso-fareast-font-family: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US">.
Experiments and Evaluation Based Pixellated CZT Semiconductor Detector
Authors: Shen Min , Tang Zhi Ling
Published: July 2013

Cadmium zinc telluride (CZT) material is one of the preferred materials for the fabrication of X-ray and gamma-ray detector. In this paper, it is presented an experimental detector system based on pixellated CZT semiconductor detector. At the same time, some research and design on the surface signal-readout method and the preamplifier circuitry is made. The signal coming from the CdZnTe material exposed to the radiation through the experiment is successfully required. The collection-efficiency between the electron and the hole in the anode is test when the different bias is applied in the pixellated CZT semiconductor detector. The parameter of the CZT detector and validate the responsive effect for the radiation is evaluated.The experiments and evaluation basis for the development of subsequent gamma spectrometer.
A Study on Data Fusion of Wireless Sensor Networks Security
Authors: Gong Ting , Yan Hui
Published: July 2013

Due to the advantage of data fusion in deleting redundant information and extending lifetime of network, data fusion has become one of the important ways of effectively relieving the bottleneck of wireless sensor networks resources, which has been widely used in wireless sensor networks. Security mechanism of transmission encryption of network is introduced to protect the security of data transmission of network.
Analysis of HZD Series Single-Phase Transformer Inrush Current Suppression Method
Authors: Sun Guo Feng
Published: July 2013

Transformer inrush current generated has been plagued by engineering and technical personnel, is also a hot topic in the industry. Electro slag furnace is a common metallurgical industry furnace, used in the metal crystal more closely requirements, performance requirements and a variety of high quality roll alloys, high temperature alloys, nonferrous alloys. Electro slag furnace transformer is the core component, have a great no-load closing inrush current protection trip often makes itself affect the product quality and production efficiency or to expand on a power trip protection range. In order to suppress inrush current, with the primary winding series resistance speed-load closing the attenuation of inrush current, inrush current generated from the theoretical reasons to be discussed and a simple series resistance deduce the resistance of this method. Theoretical basis for comparison with other methods are not subject to a number of objective factors sufficient interference, the results demonstrate the practical application of this method is simple and inrush current suppression effect is very significant. Thus, the series resistance ESR furnace transformer inrush current suppression is a method of high cost.
Analysis of Bearing Capacity of New-Type Formwork Support Frame
Authors: Zeng Qing Dun , Liu Fang
Published: July 2013

Various new type scaffolds have been introduced and developed in China. They are novel in structure and economic in material, but their security and reliability can not be ignored. This paper introduced a new chained formwork support frame with nine upright tubes and many cross-braced connections. Firstly, the load test of the support frame was performed in order to observe the failure process and to determine the ultimate bearing capacity. Then, the strength and stability of both single upright tube and a cross-braced rod were checked according to the existing specifications on scaffolds. Finally, a finite element software ANSYS was used to establish a solid model for the support frame. The structural stability was analyzed and the ultimate bearing capacity was calculated. The comparison between the computational and experiment results was carried out. The results show that the ultimate bearing capacity of the new chained formwork support frame is controlled by the structural stability.
Study on the Regularity of the Influence of Wind Pressure on the Properties of Concrete Carbonation
Authors: Niu Jian Gang , Wang Jia Lei , Bao Jian
Published: July 2013

The distribution of surface pressure of columns in concrete bridge with the effect of wind load has been simulated by Ansys software. Carbonation model of concrete in windy environment has been established by analyzing the relationship between the wind pressure, carbonization time and carbonation depth. Furthermore, by Taking air pressure of concrete surface into the carbonation model, there is a good consistency between the test value and the measured value of the actual place. At last, the design method of the durability of concrete structures under wind loads, which is based on concrete durability limit state, has been putted forward to determine the expression of the breakdown coefficient.
Effect of Sputtering Conditions on the Microstructures of YNiBi Thin Film
Authors: Wang Guo Hua , Sun Niu Yi , Qin Juan , Shi Wei Min , Wang Lin Jun
Published: July 2013

Half-Heusler compound YNiBi thin films have been prepared by direct current (DC) magnetron sputtering from an YNiBi target. The ﬁlm structure and surface morphology of YNiBi thin ﬁlms were analyzed with X-ray diﬀraction (XRD) and atomic force microscopy (AFM). The electrical properties of the ﬁlms were studied by Hall measurements. XRD patterns show that the films prepared at lower sputtering pressure and higher growth temperature exhibit minimum full width at half maximum (FWHM) and maximum diffraction peaks which belong to the same family of crystal planes. Results of AFM reveal that the surface of a variety of fabricated YNiBi films is smooth and keeps good adhesion to the substrate. The increasing of substrate temperature and slightly lowering of sputtering pressure are in favor of reducing the root mean square roughness during magnetron sputtering process. The film with high crystallinity has an electrical conductivity of 938 S/cm and carrier concentration of 2.15×1021 cm-3.
Microstructure and Properties of As-Cast Cu-20Ni-5Sn Alloy
Authors: Liu Rui Qing , Li An Yun , Peng Li Jun , Qiu Guang Bin
Published: July 2013

Cu-20Ni-5Sn alloy has not only high content of Ni melted point 1453°C, but also low melting point elements of Sn melted at 231.9°C, therefore, the grain structure of alloy as-cast is in perfect dendrite that lends to form segregation and inverse segregation of Sn, so that the hot rolling (cogging) processing is restricted. The influence of casting methods, cooling rate and heat treatment on the microstructures and properties of as-cast Cu-20Ni-5Sn alloy were investigated. The results show that, compared to the ingot casted in iron mold and graphite mold, the microstructure of Cu-20Ni-5Sn ingot prepared by horizontal continuous casting is the finest and the Sn segregation level is in lowest. The microstructure of the ingot casted in graphite mold is in the most perfected dendritic and with the highest segregation of Sn, the microstructure of ingot in iron molding is in the middle. The ingots must be homogenized before cold-processing. Homogenization treatment can eliminate Sn segregation and dissolve the non-equilibrium phase of ingots.
Experimental Research on the Physi-Mechanical Performances of Geosynthetics
Authors: Hu Jun , Zeng Hui , Wang Xiao Bin
Published: July 2013

The physi-mechanical performances of geosynthetics were studied by the test on the geosynthetics produced by one factory. Tests of stretching, top-breaking, pierce, tearing, etc. under different materials, temperatures and moistures were done by indoor study, thus studying the physi-mechanical performances of geosynthetics under different conditions. The research shows: the stretching performance of nonwoven textile is better than the woven textile's; The influence of temperature on the geosynthetics is remarkable, it should be emphasized during the construction; The moisture has a little impaction on the mechanical performance of geosynthetics; These achievements provide scientifical data and references for the physi-mechanical performances of geosynthetics, while no further study on the long-term effect, it should be studied in future.
Numerical Simulation of Flow Field of Inflation Pressure for Large Complex Sulfide Mineral of Low-Tin Flotation Machine
Authors: Hu Ming Zhen , Wu Bo Zeng , Chen Jin Quan , Zeng Ji Shu
Published: July 2013

For flotation characteristics of complex sulfide mineral of low-tin in Guangxi Dachang mine, fluid dynamics software FLUENT was applied to simulate the turbulence intensity of slurry fluid in flotation machine at different inflation pressures. The effect of flow field characteristics was gotten for flotation machine. Simulation results show that the best inflation pressure was 120000 Pa.
Modal Analysis and the Optimization of the Engine Oil Pan
Authors: Lv Yun Fei , Li Xiao Quan , Zuo Ming Wei
Published: July 2013

For engine oil sump structure, using the finite element method, considering the engine vibration analysis of structure. Get the stress distribution of the engine oil pan through the modal analysis optimization to make it comply with the design requirements.
Influences of Initial Forward Speed, Ground Stiffness on Seat-Belt Restraint Effectiveness in Rollover of Engineering Vehicle
Authors: Wei Xiu Ling , Chen Gui Qin , Zhang Xian Yu , Wang Xin Ge , Li Lei
Published: July 2013

A simulation model of a certain wheel loader is established to assess the restraint effectiveness of seat belts in 90° rollover accident along slope. The restraint effectiveness of seat belts for 95th percentile human body models are simulated which wearing lap belt, three-point belt and harness at a certain speed, and the influences of initial velocity and ground stiffness are analyzed. The results show that under a certain forward speed and same ground stiffness, wearing the harness can make the operator completely restrained in the operators seat comparing with the other belts, the head excursion is smallest, and it can reduce the risk of the head striking hazardous features of the cab interior. Under the same restraint system, the dummy's injury risk is inconsistent with change of initial speed. The harness can all provide the best restraint for the operator under different forward speeds and ground stiffness.
Optimization Design of Transmission Gears Considering the Noise Factors on the Basis of Weighting Method
Authors: Zeng Qing Dun , Deng Jing Ren
Published: July 2013

According to the traditional methods to design the gears in gearbox, the effect of the volume or noise of gears can not be involved. In order to design better gears, this paper used the simple and effective weighting method and considered the three aspects of minimizing the sum of volume of gears, the bending stress in tooth roots and the working noise to design gears. A mathematical model of optimal design of gears was established, where the contact fatigue strength on tooth surface, bending fatigue strength in tooth roots, tooth number, helix angle, big end modulus, overlap contact ratio, tooth width and so on were set as the constraint conditions and the big end modulus, the tooth width, helix angle of tooth width midpoint, and tooth number of the small bevel gear when transmission ratio is given were chosen as the design variables. Finally an example was solved. The results show that the present method can scheme out the gears of lower noise level.
Research on the Automotive Suspension Based on BP Neural Network
Authors: Li Tai Hao , Pan He
Published: July 2013

This article uses the application of artificial intelligence theory to research on the air suspension system, constructing the structure of control system, and the study of the neural network algorithm is simulation for its study of results. The fusion of fuzzy logic and neural network consist of the fuzzy neural network, which has the advantages of fuzzy logic and neural network.
Effect of Injection Molding Parameters on the Mechanical Properties of Long Fiber Reinforced Polypropylene Composites
Authors: Song He Hai , Xin Chun Ling , He Ya Dong
Published: July 2013

Effects of injection molding parameters on the residual fiber length and the mechanical properties of LFRT-PP composites, which were prepared by self-designed impregnating molding, were investigated by orthogonal experimental design method. The results showed: the length of residual glass fiber increased with the length of LFRT pellets and decreased with screw speed. The former had more remarkable impact. The mechanical properties of composites were greatly affected by the temperature of barrel. The lower temperature was benefit for obtaining the higher properties. The length of residual glass fiber was not directly corresponding with the mechanical properties. To obtain the highest mechanical properties of composites, the optimal parameter levels were: the length of pellets 10mm, the temperature of barrel 220°C, the screw speed 75 rpm and the injection pressure 80 MPa.
Research on Simulation Modeling of Corn Granule
Authors: Yan Hui , Long Duo
Published: July 2013

In order to realize simulation modeling of complex particle like corn, change the original rough and approximation methods, with the help of outer outline 3D scanning of the corn granule, scanning data are processed into the data that can be identified by Pro/ENGINEER, which are saved in the data base in this paper; through data mining, approximation simulation of ball filling is done to corn granule with cavity in the working environment of Pro/ENGINEER, which offers real, accurate and workable data for analysis and calculation of discrete element software behind the service.
Water Impact Analysis for Aircraft over Sea
Authors: Yao Man
Published: July 2013

The modern aircrafts flying height is strictly limited by the conditions on the sea. Terrible conditions may lead overturning or dropping into the water to the aircraft. Whats more, the structure of the aircraft may be broken by water-impact force. The affection of the water impact must be considered to promise the safety of the aircraft. This paper focuses on the water impact to a typical symmetrical aircraft flying above sea. The water impact force related to the trajectory angle and equivalent pitch angle is researched based on the water impact force model of a two-dimensional wedge. In addition, concerning with the limitation of the aircrafts overload, the water-contact condition is proposed to avert attitude overturning and structure broken of the aircraft.
Numerical Computation and Analysis of Heavy Medium Cyclone Turbulence Flow Field
Authors: Xia Yu Ming , Xu Zhi Qiang , Tu Ya Nan
Published: July 2013

The theory, model and algorithm of three products heavy medium cyclone flow field were researched, and the heavy medium cyclone flow field was simulated. Through the researches, the numerical discrete algorithm of heavy medium cyclone flow field was deduced, the calculation algorithms of heavy medium cyclone flow field were given, the flow trace in three products heavy medium cyclone, and the separation rules and flow field characteristics of three products heavy medium cyclone were obtained.
Research on Performance of a Mercury Continuous Emission Monitoring System
Authors: Yang Tie Jun , Ke Liang , Huang Wei , Hua Dao Zhu , Pan Chang Jin , Ye Hua Jun
Published: July 2013

The environmental pollution caused by coal-fired mercury emission has received worldwide attention, because of hazards for human health. Its significant to monitor mercury emission accurately in flue gas for mercury pollution control. In this paper, a detailed description of a mercury continuous emission monitoring system (Hg CEMS) built for the detection of mercury in flue gas is presented. The key performance parameters of the Hg CEMS were discussed in detail. The Hg CEMS was installed in a power plant to monitor mercury emission in flue gas continuously. Results from a series of laboratory performance tests and field application prove that the Hg CEMS is reliable and capable for mercury detection in flue gas. The Hg CEMS can meet the requirement of mercury monitoring in China well.
Online Biscuit Detection System Based on Machine Vision
Authors: Wei Xin , Chen Guang Feng , Zhai Lin Lin , Huang Qing Qing
Published: July 2013

In order to complete the automated sorting, the manipulator needs the accurate coordinate and angle information of the biscuits. This article design a machine vision based online biscuit detection system. Devise the hardware structure and control logic. Base on geometric matching algorithm, develop the detection software with NI Vision. The software could acquire video to analysis to get the coordinates of biscuits, and update and exchange the data with manipulator control software. The system has been tested to achieve a complete detection rate about 96%.
Using RFID Technology and Smart Sensor to Build Smart Home System
Authors: Qiu Rong
Published: July 2013

Smart sensor is assigned sensors intelligent processing functions to share the central processor central processing functions. Intelligent processor response to the digital signal of the ADC output for intelligent processing, comprising: a self-compensating function, since the calculation and processing functions as well as self-learning and adaptive function. The paper presents using RFID technology and Smart Sensor to build Smart home system. Smart home controller using RFID and smart sensor technology constitute a unified smart home system many relatively independent of household appliances in the home.
Design of Intelligent Telemedicine Monitoring Data Transmission Network
Authors: Dong Wen , Liu Chong Xin
Published: July 2013

The paper propose a design of the local data transmission between human body physiological parameters acquisition terminal and local intelligent monitoring terminal based on the wireless transmission technique of Zigbee and Bluetooth. In order to realize the remote transmission between Local medical monitoring terminal and remote intelligent monitoring terminal, the paper give network solutions for distal doctors to provide remote treatment. The program of monitoring terminal introduces the data processing mechanism Handler and class AsyncTask to ensure the reliability and accuracy of the data, and this can also reduce the complexity of algorithm.
Research on Intelligent Control System of Active Equalization for Charging Station of Electric Vehicle
Authors: Zhang Zhi Yuan
Published: July 2013

In order to improve the quality of electric vehicle battery,this paper presented an intelligent active equalization system for electric vehicle charging station. It applied equalization mode of release and supplementary to balance battery energy,and applied centralize - decentralize structure to build the system. Inductance and capacitor is applied to store up energy and transfer energy for feedback of energy. Fuzzy control technique is applied to control process in system . Simulation results show that the system can realize to balance voltage of batteres when charging or no-charging, and meet the requirement of electric vehicle charging station.
Research on FBG High Temperature Sensor Used for Strain Monitoring
Authors: Liu Yue Ming , Cai Qing Mu , Lou Jun
Published: July 2013

Strain sensing is widely used in safety monitoring of high temperature pressure pipes in oil companies and power plants. A novel high-temperature strain sensor was researched based on FBG(Fiber Bragg Grating) and the elastic high-temperature alloy in this paper. First, high-temperature Polyimide fiber FBG was prepared and tested in high temperature chamber. Second, a novel T strain gauge structure of three FBG was designed and fabricated on the elastic high-temperature alloy. This strain gauge could be applied in measurement of two-dimensional high-temperature strain sensing. In the end, a equi-intensity cantilever was adopted to test the high-temperature FBG strain sensor and testing results verified that the T type FBG strain sensor was suitable for high-temperature strain sensing with reliable performance in 300°C environment.
Applications of Fuzz Comprehensive Evaluation in Display and Control System of Armored Vehicle
Authors: Nie Jun Feng , Liu Wei Ping , Yi Jin , Cao Wei Guo
Published: July 2013

In this paper, from the point of view of Man-machine system engineering, the evaluation method of the display and control system is studied based on fuzzy comprehensive evaluation. The determination of the factors system, the weighted value of the factors, the fuzzy evaluation matrixes and the method of overall evaluation is preliminarily expounded. At last, an example is given to show that the proposed method is effective and applicable. It provides a theoretic reference to the integrated display console interface of armored vehicle developing and designing.
Impact Analysis of Guidance Instrument Error Separation Accuracy on Sampling Rate of Inertial Navigation Equipment
Authors: Wang Wen Jun , Duan Xiao Jun , Zhu Ju Bo
Published: July 2013

Based on the linear model of guidance instrument error separation, study on the separation accuracy affected by data sampling rate of inertial navigation equipment. First, theoretically proved that the higher data sampling rate is, the higher separation accuracy we can get. Second, a method for determining the optimal sampling rate is presented, whose idea is from the model itself. At last, the simulation results can verify the above two conclusions.
Research of Face Recognition System Based on TMS320DM642
Authors: Liu Zhen , Yuan Ji Chao , Mei Shuai , Shi Xiong
Published: July 2013

This paper proposes an embedded face recognition system solution. The core of hardware architecture of the system is TMS320DM642 digital signal processor (DSP). The face recognition algorithm of the system mainly comprises improved face detection algorithm which is based on skin color, Gabor wavelet feature extraction algorithm, Principal Component Analysis (PCA) algorithm and nearest neighbor classifier algorithm. The results of testing on recognition efficiency and execution time show that the system can work stably and realize face recognition quickly and accurately.
Optimization of Capacitor Copper Plate for Dielectric Heating to Eliminate Insect
Authors: Ratniyomchai Kongsak , Santalunai Samran , Thosdeekoraphat Thanaset , Thongsopa Chanchai
Published: July 2013

This paper presents the optimization of dielectric heating by using capacitor copper plate material. It has dimension of 50x50 mm. and the distance between plates is 3 mm. This work is used for preheating of insect and pests. Considering the RLC resonance circuit and the power per heating area, the rice weevils are used for sample dielectric. While the power transfer is varied from 10 - 80 watt and resonance frequency at 65 MHz for analysis, the rice weevils are died when the power transfer are more than 70 watt in 1 second. Moreover, It the power transfer is decrease, the period of time is increase. Approximate 10 watt of power transfer, the plate copper has less power so the rice weevils are breaking. Therefore, the power transfer has an effect on the heating area, which is the relation of the fast time.
Studies on Hydrolysis of P-Nitrophenyl Picolinate by Unsymmetrical Bis-Schiff Base Manganese Complexes with Aza-Crown Ether or Morpholino Pendants
Authors: Zheng Xiang , Li Jian Zhang , Huang Sheng Tian , Yang Zhu Zhu , Hu Wei
Published: July 2013

The unsymmetrical bis-Schiff base manganese complexes with either benzo-10-aza-crown ether pendants ( MnL1Cl, MnL2Cl) or morpholino pendant (MnL3Cl,MnL4Cl) have been employed as models for hydrolase by studying the hydrolysis reactions of p-nitrophenyl picolinate (PNPP). The effects of complex structures, reaction pH and reaction temperature on the rate of PNPP hydrolysis have been investigted. All four complexes exhibit high catalytic activity and the rate increases with pH increasing at 25 oC. The complexes of ligands containing a crown ether group exhibit higher catalytic activities than the non-crown analogues.
Research on a Method of Service-Oriented Network Layer Network Security Situation Assessment
Authors: Tang Li Qun , Ma Jian Ping , Wang Hui Qiang
Published: July 2013

The purpose of this study is to obtain the running situation of the network service accurately and efficiently, and then to perceive the overall security situation of the network. Simultaneity, find the potential agressire behavior and abnormal status. A service-oriented approach is presented. After establishing an evaluation index system at the network level, extracting the momentum factors, we use fuzzy AHP combining with evidence theory for real-time evaluation of network security situation to get the running situation of the network service, and then to evaluate the overall security situation of the network, identify potential attacks and network anomalies, help network policy makers take positive action and avoid to cause irreparable serious consequences. Experimental data show that the network security posture assessment results can be sensitive to changes in network status and accurately reflect the status of the network's security situation.
Application of Gap Element Method to Wheel/Rail Contact Problem Based on V-5
Authors: Zhong Jun Jie , Wu Bing , Wen Ze Feng , Zhao Xin , Jin Xue Song
Published: July 2013

The vector form intrinsic finite element (V-5) method and the gap element method are combined to solve the static wheel/rail contact in two-dimensions in this paper to obtain the wheel/rail normal contact pressure, which would be compared with the normal contact pressure of ABAQUS and Hertz theory. The results showed that the contact pressure distribution of V-5 was consistent with ABAQUS and Hertzs, and the mechanical behavior of contact area was reasonable under the circumstance of different axle loads. Besides, it also verified the feasibility of adopting gap elements method to solve the static wheel/rail contact on the basis of vector form finite element method, which with the superiority of large rotation and large deformation, and laid the foundation of rolling wheel-rail contact behavior analysis.
Test on Composite Stiffened Panel with Different Stringer Cut-Outs under Uniaxial Tension
Authors: Xie Zong Hong , Kong Xiang Dong , Yan Qun , Zhao Jian , Liu Xiao Yu , Jiang Ye
Published: July 2013

This paper presents the tensile experiments of composite stiffened panel with three different stringer cut-out configurations. The strain distribution and delamination of the critical region near the stringer cut-out were studied. The influence from the different stringer cut-out configuration and geometric parameters on the strain distribution and delamination was evaluated via the comparison of experimental data, which can provide useful information to support further research and engineering applications.
Interior Ballistic Measurement: PXI-Based Microwave Interferometer Design
Authors: Ren Huo Rong , Wang Xiao , Wang Lei , Ni Cheng Yun , Yang Ning
Published: July 2013

A PXI-based microwave interferometer system is constructed to measure the velocity of interior ballistic ammunition. The hardware and software structure of the system is introduced. Wavelet denoising and polynomial chirplet transform is used to process motion signals. Finally, experiments are conducted aiming at the launching process of a certain object, and results show that the proposed system is of high efficiency to calculate the velocity-time, displacement-time and acceleration-time curve of the ammunition. As an experimental case study, the proposed system has been applied to interior ballistic measurement.
Application Research on Entropic Stochastic Resonance for Bearing Fault Diagnosis
Authors: Ren Huo Rong , Ma Ya Nan , Wang Xiao , Li Sheng Gang
Published: July 2013

The Entropic stochastic resonance (ESR) is the appearance of stochastic resonance (SR) when the dynamics of aBrownian particle takes place in a confined medium. The presence of unevenboundaries, giving rise to anentropic contribution to the potential, may upon application of a periodic driving force result in anincrease of thespectral amplification at an optimum value of the ambient noise level.The ESR provides a way for weak signal detection, and this paper applies it to bearing fault diagnosis. Preliminary numerical simulation andexperimental result of practical bearing test signal show that the ESRhas a good effect on weak feature extraction and bearing fault detection.
A New Posture Evaluation Method of Wing Based on Iterative Closest Point Algorithm
Authors: Li Jian Chuan , Yu Jian Feng
Published: July 2013

During the process of aircraft wing finish machining, it is required to calculate the posture of aircraft wing to guide its adjustment. This paper proposes a new method to calculate the posture for aircraft wing finishing machining, through analyzing the level-measuring principle of aircraft wing. The proposed method is based on the iterative closest point algorithm (ICP), which transforms the posture evaluation problem into a registration problem between space points and surface. It repeats two processes, finding the nearest points and calculating the optimal transformation, until the convergence criteria of correctly matching are well satisfied. It also has an important part matching priority so that it could satisfy the different accuracy requirements of different metrical points. A case is presented to validate the proposed method, and the results suggest its feasibility.
Multi-Channel HDLC Controller Based on FPGA
Authors: Gong Fan Gong , Wu Qiang , Yin Tong , Liu Qing Shan
Published: July 2013

The common method of implementing a HDLC controller is either using an ASIC device or designing it with software. It is easy to implement a HDLC controller with an ASIC device, but it is hard to modify it. The software method introduces a flexible way, but it will occupy a huge amount of CPU resource, and the timing parameters are hard to ensure. Designing HDLC controller with FPGA can take advantage of both speed and flexibility, furthermore, with the programmable ability of FPGA, more than one channel can be implemented in a single FPGA. This paper introduces a HDLC controller design base on Alteras Cyclone III FPGA and Quartus II developing environment. The controller contains four HDLC channels and an interface for PC104 bus. Except the basic HDLC protocol, more functions are added into the controller, such as alterable flag sequence, built-in timer and so on. The design has been fully tested, and has been used in a communication production successfully.