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  • Open Access

    ARTICLE

    Chitinase, chitosanase, and antifungal activities from thermophilic streptomycetes isolated from compost

    González-Franco AC1, L Robles-Hernández1, JL Strap2

    Phyton-International Journal of Experimental Botany, Vol.86, pp. 14-27, 2017, DOI:10.32604/phyton.2017.86.014

    Abstract The Streptomyces genus comprises a large and diverse group of bacteria, many of which are commercially exploited for the production of antibiotics and lytic enzymes. The thermophilic species are less studied than the predominant mesophilic species. However, the first ones are a potential source of thermostable bioactive products and enzymes with novel properties. In this study, two selected thermophilic streptomycetes were identified and their chitinolytic activities were evaluated. The identification of these two isolates was performed by microscopic morphology, partial 16S rDNA sequences, and its phylogenetic analysis. To study the chitinolytic activities of these isolates, the… More >

  • Open Access

    ARTICLE

    In vitro antagonism of Trichoderma harzianum on Sclerotium cepivorum Berk. and S. rolfsii Sacc., causal agents of onion rot

    Zúñiga-Mendoza E, LF Ceja-Torres

    Phyton-International Journal of Experimental Botany, Vol.86, pp. 7-13, 2017, DOI:10.32604/phyton.2017.86.007

    Abstract In vitro tests were carried out, to evaluate the antagonist capacity of a strain of Trichoderma isolated from soil in La Cienega de Chapala, Michoacán, Mexico against Sclerotium cepivorum and Sclerotium rolfsii, casual agents of onion rot, an important disease in Mexico and the rest of the world. Percentages of radial growth inhibition (PRGI) were calculated every 24 h, until a rate of antagonism was obtained according to the Bell’s scale, as well as the percentages of inhibition of the production of sclerotia and their parasitism. The PRGI was 17.4% against S. rolfsii and 22.2% against S. cepivorum after 48 and More >

  • Open Access

    ABSTRACT

    Supplement. 1 XXI Annual Meeting of the Cordoba Biology Society

    BIOCELL, Vol.41, Suppl.S, pp. 1-74, 2017

    Abstract This article has no abstract. More >

  • Open Access

    ARTICLE

    Classifying Machine Learning Features Extracted from Vibration Signal with Logistic Model Tree to Monitor Automobile Tyre Pressure

    P. S. Anoop1, V. Sugumaran2

    Structural Durability & Health Monitoring, Vol.11, No.2, pp. 191-208, 2017, DOI:10.3970/sdhm.2017.011.191

    Abstract Tyre pressure monitoring system (TPMS) is compulsory in most countries like the United States and European Union. The existing systems depend on pressure sensors strapped on the tyre or on wheel speed sensor data. A difference in wheel speed would trigger an alarm based on the algorithm implemented. In this paper, machine learning approach is proposed as a new method to monitor tyre pressure by extracting the vertical vibrations from a wheel hub of a moving vehicle using an accelerometer. The obtained signals will be used to compute through statistical features and histogram features for More >

  • Open Access

    ARTICLE

    Analysis of the Properties and Anti-Seepage Mechanism of PBFC Slurry in Landfill

    Guozhong Dai1,*, Jia Zhu2, Guicai Shi3, Yanmin Sheng4, Shujin Li5

    Structural Durability & Health Monitoring, Vol.11, No.2, pp. 169-190, 2017, DOI:10.3970/sdhm.2017.011.169

    Abstract As the landfill leachate has strong pollution on the underground water, surface water and soil. This paper develops the formula of impervious slurry with low permeability, good durability, strong adsorption and retardant based on the bentonite which is modified by polyvinyl alcohol. Through the simulation experiment, the optimum formula of polyvinyl alcohol is 0.2%. Its osmotic coefficient for 28 days is 0.53×10-8~1.86×10-8 cm/s and compressive strength is 0.5~1.5 MPa as well. This paper study on the retardant rule of the consolidation of slurry against the pollution in the leachate by self-made percolation instrument. The experiment More >

  • Open Access

    ARTICLE

    Feature-Based Vibration Monitoring of a Hydraulic Brake System Using Machine Learning

    T. M. Alamelu Manghai1, R. Jegadeeshwaran2

    Structural Durability & Health Monitoring, Vol.11, No.2, pp. 149-167, 2017, DOI:10.3970/sdhm.2017.011.149

    Abstract Hydraulic brakes in automobiles are an important control component used not only for the safety of the passenger but also for others moving on the road. Therefore, monitoring the condition of the brake components is inevitable. The brake elements can be monitored by studying the vibration characteristics obtained from the brake system using a proper signal processing technique through machine learning approaches. The vibration signals were captured using an accelerometer sensor under a various fault condition. The acquired vibration signals were processed for extracting meaningful information as features. The condition of the brake system can More >

  • Open Access

    REVIEW

    A Review of Structural Health Monitoring Techniques as Applied to Composite Structures

    Amafabia, Daerefa-a Mitsheal1, Montalvão, Diogo2, David-West, Opukuro1, Haritos, George1

    Structural Durability & Health Monitoring, Vol.11, No.2, pp. 91-147, 2017, DOI:10.3970/sdhm.2017.011.091

    Abstract Structural Health Monitoring (SHM) is the process of collecting, interpreting and analysing data from structures in order to determine its health status and the remaining life span. Composite materials have been extensively use in recent years in several industries with the aim at reducing the total weight of structures while improving their mechanical properties. However, composite materials are prone to develop damage when subjected to low to medium impacts (i.e. 1-10 m/s and 11-30 m/s respectively). Hence, the need to use SHM techniques to detect damage at the incipient initiation in composite materials is of… More >

  • Open Access

    ABSTRACT

    Supplement. 4 XXXV Annual Meeting of the Cuyo Biology Society

    BIOCELL, Vol.41, Suppl.S, pp. 131-150, 2017

    Abstract This article has no abstract. More >

  • Open Access

    ABSTRACT

    Supplement. 3 XXXVII Annual Meeting of the Rosario Biology Society

    BIOCELL, Vol.41, Suppl.S, pp. 81-128, 2017

    Abstract This article has no abstract. More >

  • Open Access

    ABSTRACT

    Supplement. 2 XXXIV Annual Meeting of the Tucuman Biology Association

    BIOCELL, Vol.41, Suppl.S, pp. 33-80, 2017

    Abstract This article has no abstract. More >

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