bluuebunny/crossref_metadata_2025 huggingface dataset:
Phase equilibria of the Al-Cr-Pr ternary system at 773 K
Authors: Liang Yong , Wei Shuangjie , Ling Maoxing , Liu Ya , Pang Mingjun , Zhan Yongzhong , Zhou Wenbiao
Published: September 2013

The phase equilibria of the Al-Cr-Pr ternary system at 773 K have been experimentally determined based on results of X-ray diffraction, scanning electron microscopy and energy-dispersive X-ray analysis. 2 ternary compounds, Al20Cr2Pr and Al8Cr4Pr, as well as 11 binary compounds, i. e. Al7Cr, Al4Cr, α-Al9Cr4, α-Al8Cr5, AlCr2, α-Al11Pr3, Al3Pr, Al2Pr, α-AlPr, AlPr2 and β-AlPr3 were confirmed. No compound was found in the Pr-Cr binary system. The isothermal section of the Al-Cr-Pr ternary system at 773 K consists of 15 three-phase regions, 30 two-phase regions and 16 single-phase regions. Homogeneity ranges of intermetallic compounds at 773 K have been determined.
Modification of the luminescent properties of ZnS nanoparticles by the adsorbed species
Authors: Serrano Thelma , López Israel , Vázquez Alejandro , Gómez Idalia
Published: September 2013

We report the modification of the luminescent properties of ZnS nanoparticles by the adsorbed chemical species. ZnS nanoparticles were prepared via microwave-assisted synthesis. The effects of the concentrations of citrate and SO4
2− ions on the optical properties were analyzed by means of UV-Vis and photoluminescence spectrophotometries, and Fourier-transform IR spectroscopy. ZnS nanoparticles were also analyzed by means of X-ray diffraction and transmission electron microscopy. The results confirm that the luminescent properties of the synthesized particles are affected by the adsorbed chemical species (citrate and SO4
2− ions). ZnS nanoparticles synthesized with 30 and 45 mM Na2SO4, and 2 mM trisodium citrate exhibit higher intensity of luminescence than those synthesized with 15 mM Na2SO4. The average diameter of the ZnS nanoparticles synthesized under these last experimental conditions is about 20 nm.
Failure and Redemption of Multifilter Rotating Shadowband Radiometer (MFRSR)/Normal Incidence Multifilter Radiometer (NIMFR) Cloud Screening: Contrasting Algorithm Performance at Atmospheric Radiation Measurement (ARM) North Slope of Alaska (NSA) and Southern Great Plains (SGP) Sites
Authors: Kassianov Evgueni , Flynn Connor , Koontz Annette , Sivaraman Chitra , Barnard James
Published: September 2013

Well-known cloud-screening algorithms, which are designed to remove cloud-contaminated aerosol optical depths (AOD) from Multifilter Rotating Shadowband Radiometer (MFRSR) and Normal Incidence Multifilter Radiometer (NIMFR) measurements, have exhibited excellent performance at many middle-to-low latitude sites around world. However, they may occasionally fail under challenging observational conditions, such as when the sun is low (near the horizon) and when optically thin clouds with small spatial inhomogeneity occur. Such conditions have been observed quite frequently at the high-latitude Atmospheric Radiation Measurement (ARM) North Slope of Alaska (NSA) sites. A slightly modified cloud-screening version of the standard algorithm is proposed here with a focus on the ARM-supported MFRSR and NIMFR data. The modified version uses approximately the same techniques as the standard algorithm, but it additionally examines the magnitude of the slant-path line of sight transmittance and eliminates points when the observed magnitude is below a specified threshold. Substantial improvement of the multi-year (1999–2012) aerosol product (AOD and its Angstrom exponent) is shown for the NSA sites when the modified version is applied. Moreover, this version reproduces the AOD product at the ARM Southern Great Plains (SGP) site, which was originally generated by the standard cloud-screening algorithms. The proposed minor modification is easy to implement and its application to existing and future cloud-screening algorithms can be particularly beneficial for challenging observational conditions.
Approaches to Delay Claims Assessment Employed in the UK Construction Industry
Authors: Braimah Nuhu
Published: September 2013

Construction project delays emanates from multiplicity of different sources of risk events. This, combined with high uncertainty in cause-effect relationships between the events and their impacts on project completion dates, have created immense difficulties in apportioning project delay responsibilities amongst contracting parties. This challenge is now dealt with by various delay analysis approaches, yet delay claims settlement continues to be a troublesome undertaking. Empirical research on these approaches as to their application in practice is limited, although such studies provide important reference sources to practitioners and researchers. As a contribution to addressing this gap, this paper reports on practitioners’ views on the approaches based on a UK nation-wide questionnaire survey of construction and consulting companies. The key findings of the study include: (1) delay claims are often resolved late and not close in time of occurrence of the delay events, creating more difficulties; (2) simplistic delay analysis approaches are widely used in practice and form the basis of successful claim resolutions, although they have major weaknesses; (3) the sophisticated approaches, although are more robust, are generally not popular in practice. To promote the use of these reliable approaches and help reduce or avoid disputes amongst claims parties, programming and record keeping practices must be improved as they do not facilitate the use of the approaches.
Research Perspective: Potential Role of Nitazoxanide in Ovarian Cancer Treatment. Old Drug, New Purpose?
Authors: Di Santo Nicola , Ehrisman Jessie
Published: September 2013

Among gynecological malignancies epithelial ovarian cancer (EOC) is the leading cause of death. Despite improvements in conventional chemotherapy combinations, the overall cure rate has remained mostly stable over the years, and only 10%–15% of patients maintain a complete response following first-line therapy. To improve the efficacy of ovarian cancer chemotherapy it is essential to develop drugs with new mechanisms of action. Compared to normal tissues, protein disulfide isomerase (PDI) is overexpressed in ovarian tumors. PDI is a cellular enzyme in the lumen of the endoplasmic reticulum (ER) of eukaryotes or the periplasmic region of prokaryotes. This protein catalyzes the formation and breakage of disulphide bonds between cysteine residues in proteins, which affects protein folding. Selective inhibition of PDI activity has been exhibited both in vitro and in vivo anticancer activity in human ovarian cancer models. PDI inhibition caused accumulation of unfolded or misfolded proteins, which led to ER stress and the unfolded protein response (UPR), and in turn resulted in cell death. Nitazoxanide [NTZ: 2-acetyloxy-N-(5-nitro-2-thiazolyl)benzamide] is a thiazolide antiparasitic agent with excellent activity against a wide variety of protozoa and helminths. In this article, we propose that NTZ, acting as PDI inhibitor, may be a new and potent addition to the chemotherapeutic strategy against ovarian cancer.
Saving Building Energy through Advanced Control Strategies
Authors: Treado Stephen , Chen Yan
Published: September 2013

This article presents an analysis of the relationship between building energy usage and building control system operation and performance. A method is presented for estimating the energy saving potential of improvements in building and control system operation, including the relative impact of recommssioning and hardware and software upgrades, based on a subjective assessment of the level of energy efficient design and the energy usage of the building relative to similar buildings as indicated by the Energy Utilization Index for the building. The method introduces a Building Design Index and a Building Operating Index to evaluate building energy performance versus similar buildings, and uses these indices to estimate potential savings and effectiveness of control system improvements.
Achieving Smoke-Free Mental Health Services: Lessons from the Past Decade of Implementation Research
Authors: Lawn Sharon , Campion Jonathan
Published: September 2013

The culture of smoking by patients and staff within mental health systems of care has a long and entrenched history. Cigarettes have been used as currency between patients and as a patient management tool by staff. These settings have traditionally been exempt from smoke-free policy because of complex held views about the capacity of people with mental disorder to tolerate such policy whilst they are acutely unwell, with stakeholders’ continuing fierce debate about rights, choice and duty of care. This culture has played a significant role in perpetuating physical, social and economic smoking associated impacts experienced by people with mental disorder who receive care within mental health care settings. The past decade has seen a clear policy shift towards smoke-free mental health settings in several countries. While many services have been successful in implementing this change, many issues remain to be resolved for genuine smoke-free policy in mental health settings to be realized. This literature review draws on evidence from the international published research, including national audits of smoke-free policy implementation in mental health units in Australia and England, in order to synthesise what we know works, why it works, and the remaining barriers to smoke-free policy and how appropriate interventions are provided to people with mental disorder.
Distribution of Alpha Thalassaemia Gene Variants in Diverse Ethnic Populations in Malaysia: Data from the Institute for Medical Research
Authors: Ahmad Rahimah , Saleem Mohamed , Aloysious Nisha , Yelumalai Punithawathy , Mohamed Nurul , Hassan Syahzuwan
Published: September 2013

Alpha thalassaemia is highly prevalent in the plural society of Malaysia and is a public health problem. Haematological and molecular data from 5016 unrelated patients referred from various hospitals to the Institute for Medical Research for α thalassaemia screening from 2007 to 2010 were retrieved. The aims of this retrospective analysis were to describe the distribution of various alpha thalassaemia alleles in different ethnic groups, along with their genotypic interactions, and to illustrate the haematological changes associated with each phenotype. Amongst the patients, 51.2% (n = 2567) were diagnosed with α thalassaemia. Of the 13 α thalassaemia determinants screened, eight different deletions and mutations were demonstrated: three double gene deletions, ––SEA, ––THAI, ––FIL; two single-gene deletions, α–3.7 and –α4.2; and three non-deletion mutations, Cd59G > A (haemoglobin [Hb] Adana), Cd125T > C (Hb Quong Sze) and Cd142 (Hb Constant Spring). A high incidence of α–3.7 deletion was observed in Malays, Indians, Sabahans, Sarawakians and Orang Asli people. However, the ––SEA deletion was the most common cause of alpha thalassaemia in Chinese, followed by the α–3.7 deletion. As many as 27 genotypic interactions showed 1023 α thalassaemia silent carriers, 196 homozygous α+ thalassaemia traits, 973 heterozygous α0 thalassaemia carriers and 375 patients with Hb H disease. Statistical analysis showed a significant difference in the distribution of α thalassaemia determinants amongst the various ethnic groups. Hence, the heterogeneous distribution of common determinants indicated that the introduction of an ethnicity-targeted hierarchical α thalassaemia screening approach in this multi-ethnic Malaysian population would be effective.
The MAPKKK Gene Family in Gossypium raimondii: Genome-Wide Identification, Classification and Expression Analysis
Authors: Yin Zujun , Wang Junjuan , Wang Delong , Fan Weili , Wang Shuai , Ye Wuwei
Published: September 2013

Mitogen-activated protein kinase (MAPK) cascades are conserved signal transduction pathways in all eukaryotic organisms. MAPKKKs (MAPK kinase kinases) operate at the top levels of these cascades. Recently, this family of genes has been systematically investigated in Arabidopsis, rice and maize, but has not yet been characterized in cotton. In this study, we identified 78 putative MAPKKK genes in the genome of the diploid cotton, Gossypium raimondii. They were classified into three subfamilies, of which 12 were ZIK, 22 were MEKK and 44 were Raf. The ZIK and MEKK genes displayed a scattered genomic distribution across 11 of the 13 chromosomes, whereas Raf genes were distributed across the entire genome. Their conserved patterns observed for introns and additional domains were consistent with the evolutionary relationships inferred from the phylogenetic analysis within subfamily. Transcriptome sequencing data were used to investigate their transcript profiles in mature leaves, 0 day and 3 days post-anthesis (DPA) ovules. Sixty MAPKKK genes were expressed, of which 41 were strongly expressed in mature leaves. Twelve MAPKKK genes were more highly expressed in 3-DPA ovules than in 0-DPA ovules. Our results provide a foundation for future evolutionary and functional characterizations of MAPKKK genes in cotton and probably other Gossypium plants.
New Coating Technique of Ceramic Implants with Different Glass Solder Matrices for Improved Osseointegration-Mechanical Investigations
Authors: Mick Enrico , Markhoff Jana , Mitrovic Aurica , Jonitz Anika , Bader Rainer
Published: September 2013

Ceramics are a very popular material in dental implant technology due to their tribological properties, their biocompatibility and their esthetic appearance. However, their natural surface structure lacks the ability of proper osseointegration, which constitutes a crucial process for the stability and, thus, the functionality of a bone implant. We investigated the application of a glass solder matrix in three configurations—consisting mainly of SiO2, Al2O3, K2O and Na2O to TZP-A ceramic specimens. The corresponding adhesive strength and surface roughness of the coatings on ceramic specimens have been analyzed. Thereby, high adhesive strength (70.3 ± 7.9 MPa) was found for the three different coatings. The obtained roughness (Rz) amounted to 18.24 ± 2.48 µm in average, with significant differences between the glass solder configurations. Furthermore, one configuration was also tested after additional etching which did not lead to significant increase of surface roughness (19.37 ± 1.04 µm) or adhesive strength (57.2 ± 5.8 MPa). In conclusion, coating with glass solder matrix seems to be a promising surface modification technique that may enable direct insertion of ceramic implants in dental and orthopaedic surgery.
Sex Differences in the Hepatic Cholesterol Sensing Mechanisms in Mice
Authors: Lorbek Gregor , Perše Martina , Horvat Simon , Björkhem Ingemar , Rozman Damjana
Published: September 2013

Cholesterol is linked to many multifactorial disorders, including different forms of liver disease where development and severity depend on the sex. We performed a detailed analysis of cholesterol and bile acid synthesis pathways at the level of genes and metabolites combined with the expression studies of hepatic cholesterol uptake and transport in female and male mice fed with a high-fat diet with or without cholesterol. Lack of dietary cholesterol led to a stronger response of the sterol sensing mechanism in females, resulting in higher expression of cholesterogenic genes compared to males. With cholesterol in the diet, the genes were down-regulated in both sexes; however, males maintained a more efficient hepatic metabolic flux through the pathway. Females had higher content of hepatic cholesterol but this was likely not due to diminished excretion but rather due to increased synthesis and absorption. Dietary cholesterol and sex were not important for gallbladder bile acids composition. Neither sex up-regulated Cyp7a1 upon cholesterol loading and there was no compensatory up-regulation of Abcg5 or Abcg8 transporters. On the other hand, females had higher expression of the Ldlr and Cd36 genes. These findings explain sexual dimorphism of cholesterol metabolism in response to dietary cholesterol in a high-fat diet in mice, which contributes to understanding the sex-basis of cholesterol-associated liver diseases.
Vitamin B12 Metabolism during Pregnancy and in Embryonic Mouse Models
Authors: Moreno-Garcia Maira , Rosenblatt David , Jerome-Majewska Loydie
Published: September 2013

Vitamin B12 (cobalamin, Cbl) is required for cellular metabolism. It is an essential coenzyme in mammals for two reactions: the conversion of homocysteine to methionine by the enzyme methionine synthase and the conversion of methylmalonyl-CoA to succinyl-CoA by the enzyme methylmalonyl-CoA mutase. Symptoms of Cbl deficiency are hematological, neurological and cognitive, including megaloblastic anaemia, tingling and numbness of the extremities, gait abnormalities, visual disturbances, memory loss and dementia. During pregnancy Cbl is essential, presumably because of its role in DNA synthesis and methionine synthesis; however, there are conflicting studies regarding an association between early pregnancy loss and Cbl deficiency. We here review the literature about the requirement for Cbl during pregnancy, and summarized what is known of the expression pattern and function of genes required for Cbl metabolism in embryonic mouse models.
An Experimental Study on Fabricating an Inverted Mesa-Type Quartz Crystal Resonator Using a Cheap Wet Etching Process
Authors: Liang Jinxing , Huang Jia , Zhang Tian , Zhang Jing , Li Xuefeng , Ueda Toshitsugu
Published: September 2013

In this study, a miniaturized high fundamental frequency quartz crystal microbalance (QCM) is fabricated for sensor applications using a wet etching technique. The vibration area is reduced in the fabrication of the high frequency QCM with an inverted mesa structure. To reduce the complexity of the side wall profile that results from anisotropic quartz etching, a rectangular vibration area is used instead of the conventional circular structure. QCMs with high Q values exceeding 25,000 at 47 MHz, 27,000 at 60 MHz, 24,000 at 73 MHz and 25,000 at 84 MHz are fabricated on 4 × 4 mm2 chips with small vibration areas of 1.2 × 1.4 mm2. A PMMA-based flow cell is designed and manufactured to characterize the behavior of the fabricated QCM chip in a liquid. Q values as high as 1,006 at 47 MHz, 904 at 62 MHz, 867 at 71 MHz and 747 at 84 MHz are obtained when one side of the chip is exposed to pure water. These results show that fabricated QCM chips can be used for bio- and chemical sensor applications in liquids.
Temperature Stability of the Sky Quality Meter
Authors: Schnitt Sabrina , Ruhtz Thomas , Fischer Jürgen , Hölker Franz , Kyba Christopher
Published: September 2013

The stability of radiance measurements taken by the Sky Quality Meter (SQM)was tested under rapidly changing temperature conditions during exposure to a stable lightfield in the laboratory. The reported radiance was found to be negatively correlated withtemperature, but remained within 7% of the initial reported radiance over a temperaturerange of -15 °C to 35 °C, and during temperature changes of -33 °C/h and +70 °C/h.This is smaller than the manufacturer’s quoted unit-to-unit systematic uncertainty of 10%,indicating that the temperature compensation of the SQM is adequate under expected outdoor operating conditions.
Polydimethylsiloxane Rods for the Passive Sampling of Pesticides in Surface Waters
Authors: Assoumani Azziz , Margoum Christelle , Lassalle Yannick , Herbreteau Bernard , Faure Karine , Coquery Marina , Randon Jérôme
Published: September 2013

In this work, the low cost synthesis of polydimethylsiloxane (PDMS) rods is described, and the performances of this new passive sampling device (in laboratory and in situ) are compared to the passive stir bar sorptive extraction (SBSE) for the monitoring of pesticides from different classes (herbicides, insecticides and fungicides) in surface waters. The influence of synthesis parameters of PDMS rods (i.e., heating temperature, heating time and relative amount of curing agent) were assessed regarding their efficiency for the extraction of the target pesticides through a Hadamard’s experimental design. This allowed the determination of the effect of the three parameters on the sorption of pesticides within four experiments. Thus, specific conditions were selected for the synthesis of the PDMS rods (heating at 80 °C for 2 h with 10% of curing agent). Laboratory experiments led to similar to lower extraction recovery in the PDMS rods in comparison with passive SBSE, depending on the pesticide. The in situ application demonstrated the efficiency of the PDMS rods for the passive sampling of the target pesticides in river water, although lower amounts of pesticides were recovered in comparison with passive SBSE. So, these very low cost PDMS rods could be used as an alternative to passive SBSE for large-scale monitoring campaigns.
Agustín de Zárate : precisiones en torno a la vida y obra de un cronista indiano
Authors: Hampe Martínez Teodoro
Published: September 2013

Résumé. — Précisions documentaires sur la vie et l'œuvre du chroniqueur du Pérou, Agustín de Zarate (XVIe siècle). Elaboration d'un ensemble considérable de données inédites sur la biographie du chroniqueur, tirées de plusieurs archives d'Espagne. Un apport rénovateur pour mieux établir la personnalité de Zarate.
¿ Cómo puede un Europeo estudiar la literatura latinoamericana ?
Authors: Losada Alejandro
Published: September 2013

Résumé. — Evocation du problème de la réception et de l'interprétation de la littérature latino-américaine en Europe, et définition d'une signification spécifique de cette littérature. L'argumentation repose sur une étude comparative du poème El gaucho Martin Fierro (1872) de José Hernández.
Sub Terra : du texte au contexte
Authors: Fraysse Maurice
Published: September 2013

Résumé. — Les mutilations qui affectent, dès la 2e édition de 1917, certains textes de Sub terra, de Baldomero Lillo, portent sur les passages où s'exprime la prédication anarchiste. La réintroduction de la version originale, dans les éditions récentes de l'œuvre, permet d'apprécier plus directement le rapport entre texte et contexte.
Lectures anarchistes : la « Librería » de La Protesta, Buenos Aires, juin 1914
Authors: Andreu Jean-L
Published: September 2013

Résumé : Dans le projet de contre-culture anarchiste, la propagande imprimée occupe une place particulière. Un exemple parmi d'autres : le catalogue de livres que propose à la vente la « Librería » du périodique La Protesta de Buenos Aires (1914) qui se caractérise par son prosélytisme idéologique et aussi par son éclectisme.
Dissidences indiennes et complicités flibustières dans le Yucatán du XVIIe siècle
Authors: Baudot Georges
Published: September 2013

Résumé. — La Flibuste, fléau divin ou médiatrice sociale ? Son rôle complice et subversif dans les révoltes indiennes du Yucatán au XVIIe siècle. Flibustiers et amérindiens considérés dans leurs projets de contre-société implicites, peut- être même complémentaires.
Émergence et récupération d'une contre-culture dans la Colombie contemporaine
Authors: Gilard Jacques
Published: September 2013

Resumen. — En la Colombia de los años 40 y 50, el desarrollo de los medios de comunicación cuestiona los conceptos relativos a la identidad nacional. El mestizaje, en su modalidad negro-americana, se convierte en una evidencia conflictiva que los intelectuales costeños quieren integrar a la imagen oficial del país : lucha cultural, no exenta de superficialidad o dogmatismo según los casos, pero sobre todo lucha ideológica que el nuevo entorno socio-económico favoreció en un premier tiempo antes de recuperarlo en beneficio de las clases dominantes, quedando más o menos anulado lo que el proyecto de los intelectuales costeños tenía de subversivo.
La longue marche de la colonne Prestes ou l'épopée d'un échec (octobre 1924 février 1927)
Authors: Marin Richard
Published: September 2013

Résumé. — La Colonne Prestes, qui se voulait le bras armé des couches moyennes, commence sa longue marche en octobre 1924. Jusqu'en février 1927, plus de 25 000 kilomètres seront parcourus par 1 200 à 1 500 hommes, avec des moyens dérisoires. C'est une fuite en avant plutôt qu'une guérilla et les « libérateurs » sont souvent perçus comme des insurgés. A aucun moment, même dans le Nordeste, le mouvement n'a la moindre chance de s'étendre. Pourtant l'histoire fera de cet échec une épopée et de Luiz Carlos Prestes, le Chevalier de l'Espérance.
Personnages, système normatif et idéologie dans Gracias por el fuego de Mario Benedetti
Authors: Soubeyroux Jacques
Published: September 2013

Résumé. — L'application du système de la nonne à la problématique des personnages et la démarche de type sociocritique ne sont pas inconciliables. L'étude du système d'évaluation incorporé à l'énoncé de Gracias por el juego permet de mettre en relief la hiérarchie des personnages et leurs fonctions. Elle permet également de souligner l'importance du discours politico-moral de la « génération critique » uruguayenne, en tant que structure de médiation entre le texte romanesque de Benedetti et la société de ce pays.
Une sépulture aristocratique de la Tène D1 à Maizy (Aisne)
Authors: Robert Bruno , Pinard Estelle , Auxiette Ginette , Gransar Marc , Hénon Bénédicte
Published: September 2013

Trois enclos funéraires dont un aux dimensions imposantes ont été fouillés à Maizy (Aisne). Ce dernier ceinture une sépulture monumentale à chambre coffrée contenant une incinération accompagnée de vingt six vases, des restes de trois amphores, des offrandes animales et plusieurs éléments métalliques. Malgré les fortes perturbations apparentes, l’essentiel du mobilier est demeuré dans sa place d’origine. Cette sépulture est attribuée à La Tène D1a.
The Regularization Method with Morbid Problems of Equality Constraints
Authors: Ma Chao Zhong , Du Yuan Lu , Gu Yong Wei , Fu Ji , Gui Qing Ming
Published: September 2013

The difference between the parameters and reasonable equality constraints can significantly improve the precision of classical least squares solution to eliminate the rank loss free network problems, and also can improve the pathological solution of the model, which presents the measurement adjustment equality constraints attached pathological model. This paper establishes the equality constraints morbid Model Adjustment regularization criteria, to give the solution of the model, and gives the statistical analysis to understand the nature. Based on this data, and giving full consideration of inevitable gross errors, it puts forward robust regularized factor mean square error minimization criteria and numerical solution. A variety of programs the calculation results show that the method not only can eliminate the adverse effects of the matrix morbid, but also can be able to overcome the presence of gross errors caused by instability, which is a good estimate.
The Study on Electric Parameters Automatic Test System
Authors: Zhou Qin Ling
Published: September 2013

Based on a digital signal processor hardware and the wavelet transform theory the next generation of electri'cal parameters automatic test system is designed. The current and voltage signal measurement relative error is not more than 0.2%, the power factor and harmonic content measurement error is not more than 1.1%, and frequency signal measurement error is less than 0.1% by this system.
Analysis on the well Constraint Inversion of the Jason-Based Layer Flattening Seismic Data under the High-Resolution Isochronous Framework
Authors: Fang Shi , Zhang Xin Rong , Liu Jin Ping , Xie Chun Lai
Published: September 2013

The later-period structure of Fuyang oil layer is very complex, and its reservoir mainly consists of riverway sand bodies; the oil and gas reservoir is significantly concealed, so it is greatly difficult to identify. In order to accurately predict sand bodies by using seismic data, a well constrained inversion is made to the layer flattening seismic data using Jason software under the high-resolution sequence framework. Through a comprehensive analysis on seismic and geological data, the absolute error is within ±500, the relative error is within 10%; the predicted sand body plane distribution is reasonable, and the absolute error of 82% sand bodies is less than 10%. This proves that well constrained inversion for the Jason-based layer flattening seismic data under the high-resolution isochronous framework has an obvious effect on the areas of complex later-period structure, and thin and complex changed sand bodies. Therefore, it can meet the needs of the oil field exploration and development to a certain extent.
Design and Implementation of Speech Recognition System Based on FPGA
Authors: Yi Bo Nian
Published: September 2013

Speech recognition technology is one of the hottest and the most promising new information technologies in the world. This paper studied the voice pretreatment and extractions of MFCC characteristic parameters, constructed speech keywords recognition algorithm with the core of the VQ model and the HMM model, using MATLAB to complete the training and simulation of algorithm, FPGA-based voice recognition technology, and the simulation and implementation of its hardware and software. It laid the foundation for the realization of speech recognition and control based FPGA.
Target Tracking Technology Basing on Pedestrian Video
Authors: Shen Hao , Liu Hean
Published: September 2013

In order to solve some high-complexity problem including traditional video tracking method, pedestrian movement shelter and calculation, target pedestrian detection technology basing on the video track is proposed. By collecting prospect of video and picture dealing technology, detecting and tracking moving target, detecting and analyzing the data of video, the result shows that this way is more accurate than traditional way and it can clearly draw the moving track of pedestrian.
Clustered-Dot Halftone Watermark Using Phase Modulation
Authors: Liu Ping Feng , Ai Hua Wen , Ya Li Qi
Published: September 2013

Digital watermarking provides a solution for protecting the copyright of digital contents, and print-and-scan resilient data hiding finds important applications in document security. In this paper, we propose a clustered dot halftone watermarking algorithm based on phase modulation. The watermark region and the other region use the threshold matrix for halftoning at the two different screen angle. The watermark is detected by overlaying the model, with one of the screen angle. Mean filtering and median filtering is performed on the recovered watermark to improve the appearance, and watermark is pre-processed using Arnold transformation to eliminate the edges in the border of the watermark. Experiments show watermark can appear under smearing, cropping and pint-and-scan attacks.
Research on the Structure Characterization Algorithm of the Complex Network Cluster
Authors: Shuo Liang Xun , Chen Yi Ying , Zhang Ze Xing
Published: September 2013

Cluster network structure is one of the most common topological properties of complex networks and the most important topological attribute, and has the characteristics of the same cluster nodes connected to each other, and the sparse characteristics of the dense clusters interconnected with nodes. To reveal the complex network clustering method of network cluster structure has a very important theoretical significance for the analysis of complex network topology structure, to understand its function, discovering the behavior of the hidden patterns, prediction, and is widely used in social networks, biological networks and the world wide web. This article reviews the research background of the complex network clustering method, research significance, research status at home and abroad as well as the major problems currently facing this new research direction in an attempt to draw a comprehensive and clear outline, to provide a useful reference for researchers of the complex network, data mining, intelligent Web, Bioinformatics and other related fields.
Optimal Design of a Five-Phase Outer-Rotor Permanent-Magnet Synchronous Machine
Authors: Zheng Ping , Sui Yi , Wang Peng Fei , Wu Fan , Zhang Shu Qing
Published: September 2013

With the increasing requirements for driving comfort and reliability of electric vehicles, the multi-phase fault-tolerant permanent-magnet synchronous machines (PMSMs) have drawn more and more attention. A 40-slot/42-pole five-phase outer-rotor PMSM is investigated. The electromagnetic structure is designed, and the winding configurations, pole-arc coefficient, magnetization direction, and the structure of slot notch are optimized to obtain better machine performance.
The Shell Processing Technology Analysis
Authors: Jia Zhi Min
Published: September 2013

Articles for shell parts CNC machining process, project analyzed and discussed. Analysis of case processing factors affect the gun balance beam gear rotating parts; proposed economic program of quality assurance measures and casing processing; This paper will compared to the original process and improvement process, the shell process, to do this re-determine the economic process and the causes of quality problems and the economical process scheme according to the characteristics of small and medium-sized enterprises.Quality assurance measures; proposed economic projects introduce a key process in the process modified process, reasonable development of technology programs, the use of general machine is a reliable way to achieve better economic efficiency.
Algorithm to Deal with the Problem of Placing Cameras in Museum
Authors: Li Shang
Published: September 2013

We develop a model to study how to place still and/or rotary cameras in some locations around the museum. The goal is to determine the optimal camera locations and the smallest number of the cameras so as to provide the best possible coverage during the night and be easy to monitor particular items. We model the process how to select every optimal camera location and the kind of camera. Subject to the given constraints, our algorithm outputs the optimal project for every given museum. We apply our algorithm to a case study of a real museum in China inorder to test the practicability of the model. Finally, we examine the sensitivity of optimal camera locations and the number of cameras to changes in the unit length of zoning.
A Cloud Architecture for Service Security Management
Authors: Jiao Wen Zhe , Ye Xiao Xue
Published: September 2013

Cloud computing is revolutionizing how resources and services are used and managed, but the revolution comes with new security problems. This paper identifies current security issues in cloud computing environments. To manage service security, we propose a new architecture based on Service Level Agreements (SLAs). To ensure the integrity of data service and relieve the security concerns of users, we implement a new data auditing algorithm in this architecture. Furthermore, we present four-layer cryptography analysis to ensure data security.
Study on the Design of Computer Interlocking System Security's Reliability
Authors: Chen Yun Ping
Published: September 2013

The reliability of computer interlocking system security has a close tie with many aspects such as the data information transmission accuracy of the entire system. If the reliability of the system security is not high, security-related accidents will be very easily caused in enterprises and bring about huge losses to enterprises, so study on the design of computer interlocking system security's reliability is of great significance. In this paper, based on the introduction to the basic functions and composition of computer interlocking system, several factors influencing the design of computer interlocking system security's reliability are analyzed from both hardware and software, and finally several design plans targeted at how to improve the reliability of security are proposed.
Design and Implementation of Railcar Management System Based on SSH
Authors: Cheng Long , Ge Wei , Xue Bin
Published: September 2013

As the main means of transport, Railcar performs main task of railway equipment repairing department. For managing railcar information better, upgrading the version of the DMI program version, basic data version, revealing data version of GYK on railcar, the paper develops railcar management system which is based on the B/S mode of J2EE lightweight development framework Struts-Spring-Hibernate (SSH) . This paper introduces the system design process and every function module in detail. Result proves that railcar management system improves the management efficiency of railcar, consists with the characteristics of the railcar and plays a positive role in the safety of railcar.
Role-Based Risk Adaptive Access Control Model
Authors: Huang Dan Hua , Yang Ya Qian
Published: September 2013

To solve the problem of only considering constraint verification and ignoring current running environmental security, Economical risk is applied in Role-Based Access Control (RBAC) to weigh user needs and environmental security according to context information and current environment. A model for Role-Based Risk Adaptive Access Control (RRAAC) combining traditional RBAC with new Risk Adaptable Access Control (RAdAC), and the method of risk calculation used in RRAAC model and its mathematic analysis and verification are presented in this paper. This RRAAC model has already been realized in a general personnel management system and experimental result shows that this model possesses great flexibility and certain adaptability coping with environmental changes during access control and task executing in business processes.
Construction of Virtual Packaging Lab Based on Virtual Instrument and Information Control
Authors: Cao Le , Yuan Yan , Li Miao
Published: September 2013

This paper illustrated the teaching status of packaging experiment in colleges and universities, discussed feasibility of constructing virtual packaging lab on the basis of virtual instrument and information control , introduced hardware structure and software module of virtual packaging lab in detail, and analyzed development of virtual instrument for temperature measurement under liquid filling through examples. Moreover, packaging lab can be constructed with the lowest cost and the utilization rate of experimental instrument can be increased through virtual instrument; this is an important development direction for packaging lab.
Research on Network Public Opinion Monitoring Based on Matrix Theory and Mathematical Statistics
Authors: Feng Shu Hui
Published: September 2013

The prevail of network in universities brings big impact for the current university students' ideological and political education , also leads to network public opinion have a great influence on university students' thought, attitude. The current network public opinion has become a common concern of the society, also become the focus new areas university ideological and political education. This radical serve the foundation literature of network public opinion as a starting point, doing actual research direct at the four grade students, to understand the current situation of Ideological and political education of university students, at the same time with mathematical statistics method SAS to statistical analysis, constructed a university students' ideological and political education in the network public opinion monitoring model, in order to guide college ideological and political education workers pay more attention to college students' Ideological and political dynamics. Strengthening the collection of information resources links, the effective use of information resources processing, audit functions, to achieve the effective information release, eventually achieve good ideological and political education.
Research on a Development Framework of the 3D Interactive System Based on Andriod Phone
Authors: Peng Hu
Published: September 2013

The improvements of smart phone performance have made it possible to develop 3d interaction system on the phone, and the android platform has the highest market share of mobile phone platforms. Therefore the development of 3D interaction system on the Andriod phone becomes a unstoppable trend. Based on the combination of three kinds of application development framework, a development framework of the 3D interactive system based on Andriod phone is put forward. And this essay takes the 3d room show as an example analysis of the development framework and proves its feasibility and effectiveness.
Coverage Optimization Mechanism Based on Weighted Genetic Algorithm and Constrained Genetic Algorithm
Authors: Ma Chang Wei
Published: September 2013

As a basic problem of wireless sensor in network applications, coverage reflects the quality effect of monitoring and tracking of the network. In view of the high density of sensor nodes deployment, this article works on the node set selection problem, puts forward two kinds of coverage optimization mechanisms based on weighted genetic algorithm and constrained genetic algorithm according to the genetic algorithm operation of the fitness function generation, and calculates approximately optimal working nodes required in the sensor network fully covering area. The simulation results show that the algorithm can quickly converge to the optimal solution and complete the optimization of node set selection, thereby reducing network redundancy and prolonging the survival time of the network.
Discussion on the Measures for Enhancing the Signals of Wireless Communication Network Sites
Authors: Ma Wei Hua
Published: September 2013

Because of the large span of the distance between wireless communication networks, many kinds of interference are encountered in the network signal transmission process, so that the accuracy of receiving the information is affected by the weakened signals and also the communication service quality for the users is reduced. Under this background, the advantages such as remoteness and convenience of wireless communication are first introduced. In the meantime, the factors influencing the signals of the wireless communication network are affected. Finally, the measures for enhancing the signals of the wireless communication network sites are proposed. It is expected that this paper is helpful for the future studies.
Realization Scheme for LAPDM on GSM Virtual Base Station
Authors: Wang Kai , Wan Guo Jin
Published: September 2013

The Link Access Procedures on Dm channel (LAPDM) is the data link layer of GSM (Global System for Mobile Communications) cellular network. According to the requirements of virtual base station and 3GPP protocols, we proposed an improved scheme for implementing LAPDM on GSM virtual base station platform. The scheme has higher reliability and efficiency by reducing the useless data link status and operational flow. This paper introduced a framework for realizing the proposed scheme and presented detailed analyses about its program structure, status transition, errors detection and correction approach, timer and retransmission mechanism. Finally, the program was ported to the hardware platform and monitored by OT Drive software. Experimental results show the improved scheme has good performance on each required signaling flow.
Research on Vector Algebra Algorithm of Network Coding
Authors: Mei Xu Shi
Published: September 2013

The vector algebra algorithm has been conducted in - depth study, through the vector algorithm to adjust the conversion of vector data and raster data, it can finally realize the quantization scheme of vector algebra algorithms that are applied to network coding, vector algebra algorithm will be conducive to the network and retrieval analysis, the graphical display also has good quality and high precision. At the same time, data structure is simple and easy to spatial analysis and surface modeling.
The Design and Implementation of the Employment Network Based on Lightweight Structural Frame Technology
Authors: Liu Hong Qing
Published: September 2013

This paper introduces the College Employment Network system architecture and application of key technologies , applied research on the part of the innovative technical, focuses on the system requirements analysis and design implementation.At the same time,employment site change employment websites to focus only on release of employment information in the past,focus on improving students' ability to work in employment,Establish between business with graduates. Both JSP engine, Oracle has built for the back-end database server information interactive website,it will improve the efficiency and quality of traditional employment information,realize exchange of information between students, teachers, and parents. Practice has proved that Usefulness of the system has a very stable and achieve the expected goals of the system design.
Study on an Adaptive Distributed Linear Dispersion Code
Authors: Li Yu , Liu Wei
Published: September 2013

An adaptive distributed linear dispersion code is proposed in this article. In the first place, each relay code selects modulation type adaptively according to channel capacity. Then the candidate dispersion matrixes are selected based on the channel state weight. Finally the best transmission scheme is selected according to the system information rate and reliability. Simulation results show that the proposed adaptive coding scheme gives a more good performance.
Analysis of New Materials of Computer Memory
Authors: Zheng Qiu Ju
Published: September 2013

Modern computer memory, in addition to cache memory, is mainly divided into two categories: internal memory and external memory. External memory mainly comprises of magnetic or optical disks, floppy disks, tapes, like hard disks, CDs, which can store information, and do not depend on electricity to save information. In the new technology, the computer memory materials are facing a revolution of industry upgrade. In this paper, based on a lot of information the author makes a brief analysis of the new material of the external memory, that is, the phase change storage materials, titanium oxide crystals form materials, magnetic materials and organic ferroelectric materials, and comprehensively promote the new research and new development of computer storage materials.
Application of Nanometer Materials in the Design of Clothing
Authors: Ma Meng Chao , Jiang Zhong Hua
Published: September 2013

Application of nanometer materials in the design of clothing has achieved some success, and plays a positive role in promoting the innovation and development of clothing design and further meeting the needs of the market and consumers. This paper makes a brief analysis on the application of nanometer materials in the design of clothing.
Finite Element Analysis for Web Press's Fold Cutter
Authors: Yuan Ying Cai , Jia Qin Qin , Shi Zi Yaun
Published: September 2013

The design of fold cutter influences the precision, velocity and stability of the web press folder. For the variable structure of fold cutter, its hard to solve the status of the stress and distortion by the normal mechanical method. But by the finite element analysis and ANSYS software, its convenience to solve this problem based on the reasonable analysis of the load in working state. It can supply the favorable bases to the design of web presss fold cutter by analysis the stress and distortion. In the example, the conclusion can be gotten that the intensity of fold cutter meet the requirements sufficiently, but the stiffness is insufficient softly, which influences the folding precision.
Research on the Whole Stability of WZ30-25 Backhoe Loader
Authors: Zu Ying Li , Rui Huang
Published: September 2013

A virtual prototype of WZ30-25 hydraulic backhoe loader is established by using parameterization modeling and analysis function of ADAMS software. Moreover, various parameters of the prototype are simulative measured and verified, and the stability of the backhoe loader is checked in four typical operation modes