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  • Open Access

    ARTICLE

    Physiological Processes Contributing to the Difference in Grain Amino Acid Content between Two Hybrid Rice (Oryza sativa L.) Cultivars

    Min Huang*, Hengdong Zhang, Chunrong Zhao, Guanghui Chen and Yingbin Zou

    Phyton-International Journal of Experimental Botany, Vol.88, No.2, pp. 101-107, 2019, DOI:10.32604/phyton.2019.06694

    Abstract Improving grain amino acid content of rice (Oryza sativa L.) is essential for the health of consumers. This study was conducted to identify the physiological processes that contribute to the higher grain amino acid content in hybrid rice cultivar Lingliangyou 268 compared to Luliangyou 996. The results showed that total amino acid content in grains was 9% higher in Lingliangyou 268 than in Luliangyou 996. There was no significant difference in grain nitrogen (N) content between Lingliangyou 268 and Luliangyou 996, while ratio of amino acid to N was 6% higher in Lingliangyou 268 compared to Luliangyou 996. A total… More >

  • Open Access

    ARTICLE

    Stability Analysis of Network Controlled Temperature Control System with Additive Delays

    V. Venkatachalam1, *, D. Prabhakaran1

    CMES-Computer Modeling in Engineering & Sciences, Vol.114, No.3, pp. 321-334, 2018, DOI:10.3970/cmes.2018.114.321

    Abstract This paper presents, using Lyapunov-Krasovskii functional technique combined with reciprocal convex lemma is considered for a networked control temperature control system with additive time-varying-delays. In the stability analysis, a new LK functional is assumed, and take the time-derivative of the (LK) functional, using reciprocal convex combination technique was employed to obtain less conservative stability criteria. Finally, the proposed stability analysis culminates into a stability criterion in the LMI (linear matrix inequalities) framework. The results obtained are in accordance with the theoretically obtained in the temperature control system and they are closer to the standard benchmark temperature-control system. More >

  • Open Access

    ABSTRACT

    Air Quality Simulation for Interior of an Automobile

    Bo Mei, Xiuling Wang

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.20, No.1, pp. 9-10, 2011, DOI:10.3970/icces.2011.020.009

    Abstract Automobiles are used every day and air quality in the automobile is directly related to people's health. This paper focuses on the distribution of automotive interior carbon dioxide on the highway. A typical sedan is chosen as a sample. Carbon-dioxide meter and wind meter are used to get essential data. Then, the data is analyzed by the commercial CFD software - GAMBITAR and FLUENTAR. After plotting and comparing the contours of the distribution, how changing the fan speed will change the distribution is got. First, concentration of carbon dioxide at the bottom is always the highest region among the whole… More >

  • Open Access

    ABSTRACT

    Mesh Quality Improvement for Unstructured Quadrilateral Multigrid Analysis

    Y. Wada1, T. Hayashi2, M. Kikuchi3

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.8, No.4, pp. 127-132, 2008, DOI:10.3970/icces.2008.008.127

    Abstract Due to more complex and severe design, more effective and faster finite element analyses are demanded. One of the most effective analysis ways is the combination of adaptive analysis and multigrid iterative solver, because an adaptive analysis requires several meshes with different node densities and multigrid solver utilizes such meshes to accelerate its computation. However, convergence of multigrid solver is largely affected by initial shape of each element. An effective mesh improvement method is proposed here. It is the combination of mesh coarsening and refinement. A good mesh can be obtained by the method to be applied to an initial… More >

  • Open Access

    ABSTRACT

    Techniques of Digital Processing of Images for a System of Selection of Uchuva for Export by Means of Artificial Vision

    Osorio Rivera Fray León1

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.7, No.2, pp. 63-76, 2008, DOI:10.3970/icces.2008.007.063

    Abstract In the development context of a project about a system of selection uchuva for export by means of artificial vision whose objective is to provide an electromechanical system to able to select uchuvas by searching on its physical appearance, some algorithms have been developed to extract the necessary details beginning with the image of the acquired fruit using a camera. As a result, it must be able to determine if the visualized uchuva presents some symptom (insects, fungus, and deterioration) that indicates if it should be discharged. More >

  • Open Access

    ARTICLE

    Edible Coatings Based on Apple Pectin, Cellulose Nanocrystals, and Essential Oil of Lemongrass: Improving the Quality and Shelf Life of Strawberries (Fragaria Ananassa)

    Ingrid Souza Vieira da Silva1, Natália Soares Prado1, Patrícia Gontijo de Melo2, Danilo Campion Arantes3, Mara Zeni Andrade4, Harumi Otaguro1, Daniel Pasquini1,*

    Journal of Renewable Materials, Vol.7, No.1, pp. 73-87, 2019, DOI:10.32604/jrm.2019.00042

    Abstract In this work, nine different types of edible coating based on pectin, cellulose nanocrystals, glycerol, and essential oil of lemongrass were prepared and used to coat strawberries with a film formed directly on the surface of the coated fruit. The effects of the different edible coatings on refrigerated fruits in terms of weight loss, titratable acidity, total soluble solids, pH, and anthocyanin content was evaluated after 2 days, 4 days, 6 days, and 8 days of storage. Application of the edible coatings reduced the weight loss of the coated strawberries and the anthocyanin content. The total soluble solids content of… More >

  • Open Access

    ARTICLE

    The Quality Assessment of Non-Integer-Hour Data in GPS Broadcast Ephemerides and Its Impact on the Accuracy of Real-Time Kinematic Positioning Over the South China Sea

    Zhangzhen Sun1, Tianhe Xu1,*, Fan Gao1, Chunhua Jiang1, Guochang Xu1

    CMES-Computer Modeling in Engineering & Sciences, Vol.119, No.2, pp. 263-280, 2019, DOI:10.32604/cmes.2019.04425

    Abstract Abnormal effects in GPS broadcast ephemerides can have a significant effect on real-time navigation and positioning solutions that use the orbit and clock error data provided by GPS broadcast ephemerides. This paper describes three types of non-integer-hour navigation data in GPS broadcast ephemeris data. Compared with GPST integer hour data, we find that there are two types of data blocks for non-integer-hour navigation containing gross errors with different levels of precision, which is reflected in the user range accuracy (URA) of the broadcast ephemeris. These gross errors can cause large deviations when using the GPS broadcast ephemeris for orbit calculation… More >

  • Open Access

    ARTICLE

    Eliminating Slivers in Three-Dimensional Finite Element Models

    R.H. Moore1, S. Saigal2

    CMES-Computer Modeling in Engineering & Sciences, Vol.7, No.3, pp. 283-292, 2005, DOI:10.3970/cmes.2005.007.283

    Abstract An efficient method for treating slivers and other poorly shaped elements in finite element solutions is presented. A major difficulty for finite element analyses arises from the creation of slivers in automated mesh generation. Sliver shaped elements can degrade the accuracy of a solution and are difficult to remove from a mesh. The proposed method treats slivers by first merging them with neighboring elements to form polyhedra and next subdividing the polyhedra into well-shaped tetrahedral elements. The method does not require the cumbersome and expensive operations of addition or rearrangement of nodes. The validity and accuracy of the present method… More >

  • Open Access

    ARTICLE

    SERVQUAL Model Based Evaluation Analysis of Railway Passenger Transport Service Quality in China

    Huiwei Niu1, Jiao Yao1,*, Jing Zhao2, Jin Wang3,4

    Journal on Big Data, Vol.1, No.1, pp. 17-24, 2019, DOI:10.32604/jbd.2019.05799

    Abstract Railway is the backbone of Chinese transportation system, but its poor quality of services for passengers cause complains now and then. This study first analyzed the influencing factors of service quality on railway passenger, and its quality characteristics was also explained, and finally we proposed an evaluation system of service quality on railway passenger transport. Through the statistical analysis and processing of the basic information from survey data from railway station, trains and the official website of the ticket purchase, the evaluation score of question naire was converted into the score in evaluation index system, which was based on SERVQUAL… More >

  • Open Access

    ARTICLE

    Coverless Image Steganography Method Based on Feature Selection

    Anqi Qiu1,2, Xianyi Chen1,2, Xingming Sun1,2,*, Shuai Wang3, Guo Wei4

    Journal of Information Hiding and Privacy Protection, Vol.1, No.2, pp. 49-60, 2019, DOI:10.32604/jihpp.2019.05881

    Abstract A new information hiding technology named coverless information hiding is proposed. It uses original natural images as stego images to represent secret information. The focus of coverless image steganography method is how to represent image features and establish a map relationship between image feature and the secret information. In this paper, we use three kinds of features which are Local Binary Pattern (LBP), the mean value of pixels and the variance value of pixels. On this basis, we realize the transmission of secret information. Firstly, the hash sequence of the original cover image is obtained according to the description of… More >

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