MONTHLY CONSUMPTIVE USE BY SUGARCANE AT FOUR REGIONAL SITES IN PUERTO RICO

MONTHLY CONSUMPTIVE USE BY SUGARCANE AT FOUR REGIONAL SITES IN PUERTO RIC

Improving top-down proteomics: first steps

Comunicaciones a congreso

Using the equivalent material concept and the average strain energy density to analyse the fracture behaviour of structural materials

ABSTRACT: This paper provides a complete overview of the applicability of the Equivalent Material Concept in conjunction with the Average Strain Energy Density criterion, to provide predictions of fracture loads in structural materials containing U-notches. The Average Strain Density Criterion (ASED) has a linear-elastic nature, so in principle, it does not provide satisfactory predictions of fracture loads in those materials with nonlinear behaviour. However, the Equivalent Material Concept (EMC) is able to transform a physically nonlinear material into an equivalent linear-elastic one and, therefore, the combination of the ASED criterion with the EMC (EMC?ASED criterion) should provide good predictions of fracture loads in physically nonlinear materials. The EMC?ASED criterion is here applied to different types of materials (polymers, composites and metals) with different grades of nonlinearity, showing the accuracy of the corresponding fracture load predictions and revealing qualitatively the limitations of the methodology. It is shown how the EMC?ASED criterion provides good predictions of fracture loads in nonlinear materials as long as the nonlinear behaviour is mainly limited to the tensile behaviour, and how the accuracy decreases when the nonlinear behaviour is extended to the material behaviour in the presence of defectsFunding: This research was funded by the Spanish Ministry of Science, Innovation and Universities, grant number PGC2018-095400-B-I00 (MCIU/AEI/FEDER, UE)

A similarity measure between videos using alignment, graphical and speech features

A novel video similarity measure is proposed by using visual features, alignment distances and speech transcripts. First, video files are represented by a sequence of segments each of which contains colour histograms, starting time, and a set of phonemes. After, textual, alignment and visual features are extracted of these segments. The following step, bipartite matching and statistical features are applied to find correspondences between segments. Finally, a similarity is calculated between videos. Experiments have been carried out and promising results have been obtained.Ministerio de Ciencia e Innovación TIN2009–14378-C02–0

Estimation of some geohydrological properties in a set of monitoring wells in Mexicali Valley, B.C., Mexico

[EN] With the aim of studying the response of the water level related to variations in barometric pressure and the action of theoretical Earth tide, in a set of monitoring wells in the Mexicali Valley; are propose and implement analysis techniques in the time and frequency domain to obtain as result from the calculation of transfer functions and harmonic analysis, values of barometric efficiency and sensitivity to Earth tide, with which under conditions of theoretical static-confined response, was possible to obtain estimates of some geohydrological and geophysical properties as: porosity, specific storage, and compressibility. In five wells considered in this paper were obtained estimates of the properties of the aquifer in a state before and after an earthquake. This work has enabled a better understanding of the parameters that control the processes that occur in the study area[ES] Con el objetivo de estudiar la respuesta del nivel del agua relacionada a las variaciones de la presión barométrica y a la acción de la marea terrestre teórica, en pozos de monitoreo en el Valle de Mexicali. Técnicas de análisis en los dominios del tiempo y la frecuencia son planteadas e implementadas, para obtener como resultado del cálculo de funciones de transferencia y análisis de armónicos, valores de eficiencias barométrica y de sensibilidad a la marea terrestre, con los cuales bajo condiciones de respuesta confinada–estática teórica, fue posible obtener estimaciones de algunas propiedades geohidrológicas y geofísicas como: porosidad, almacenamiento específico, y compresibilidad. En cinco pozos considerados en este trabajo se obtuvieron estimaciones de las propiedades del acuífero en un estado previo y posterior a un sismo. Este trabajo ha permitido un mejor conocimiento de los parámetros que controlan los procesos que suceden en la zona de estudioLos autores agradecen sinceramente los comentarios y sugerencias realizadas por cada uno de los revisores. Este trabajo ha sido financiado por recursos otorgados por el Consejo Nacional de Ciencia y Tecnología, CONACYT, México, a través de la beca para estudios de posgrado No. 234622, Mario Alberto Fuentes Arreazola.Fuentes-Arreazola, MA.; Vázquez-González, R. (2016). Estimación de algunas propiedades geohidrológicas en un conjunto de pozos de monitoreo en el Valle de Mexicali, B.C., México. Ingeniería del Agua. 20(2):87-101. https://doi.org/10.4995/ia.2016.4389SWORD87101202Agnew, D. C. (2012). SPOTL: Some programs for ocean-tides loading. Technical Report, Scripps Institution of Oceanography, La Jolla, California, USA.Álvarez-Rosales, J. (1999). Aspectos generales sobre geohidrología en Cerro Prieto, B. C., México. Geotermia,15(1), 05-10.Bendat, J. S., Piersol, A. G. (1986). Random Data: Analysis and Measurement Procedures. John Wiley, New York USA.Berger, J., Beaumont, C. (1976). An analysis of tidal strain observations from the United States of America II. The inhomogeneous tide. Bulletin of theSeismological Society of America, 66(6), 1821-1846.Berger, J., Farrell, W., Harrison, J. C., Levine, J., Agnew, D. C. (1987). ERTID 1. A program for calculation of solid Earth tides. Publication of the Scripps Institution of Oceanography, La Jolla, California, USA.Bredehoeft, J. D. (1967). Response of well-aquifer systems to Earth tides. Journal of Geophysical Research, 72(12), 3075-3087, doi:10.1029/JZ072i012p03075Domenico, P. A., Schwartz, F. W. (1997). Physical and Chemical Hydrogeology (2nd edition), John Wiley, USA.Igarashi, G., Wakita, H. (1991). Tidal responses and earthquake-related changes in the water level of deep wells. Journal of Geophysical Research, 96(B3), 4269-4278, doi:10.1029/90JB02637Jacob, C. E. (1940). On the flow of water in an elastic artesian aquifer. Transactions American Geophysical Union,21(2), 574-586, doi:10.1029/TR021i002p00574Lai, G., Hongkui, G., Weilai, W. (2013). Transfer functions of the well-aquifer systems response to atmospheric loading and Earth tide from low to high-frequency band. Journal of Geophysical Research,118(5), 1904-1924, doi:10.1002/jgrb.50165Nur, A., Byerlee, J. D. (1971). An exact effective stress law for elastic deformation of rock with fluids. Journal of Geophysical Research,76(26), 6414-6419, doi:10.1029/JB076i026p06414Quilty, E. G., Roeloffs, E. A. (1991). Removal of barometric pressure response from water level data. Journal of Geophysical Research, 96(B6), 10209-10218, doi:10.1029/91JB00429Rahi, K., Halihan, T. (2009). Estimating selected hydraulic parameters of the Arbuckle-Simpson aquifer. Final report submitted to the Oklahoma Water Resources Board, Oklahoma State University School of Geology, 53 p.Rice, J. R., Cleary, M. P. (1976). Some basic stress diffusion solutions for fluid-saturated elastic porous media with compressible constituents. Reviews of Geophysics, 14(2), 227-241, doi:10.1029/RG014i002p00227Roeloffs, E. A. (1988). Hydrological precursors to earthquakes: A review. Pure and Applied Geophysics, 126(2), 177-209, doi:10.1007/BF00878996Rojstaczer, S. (1988a). Determination of fluid flow properties from the response of water levels in wells to atmospheric loading. Water Resources Research, 24(11), 1927-1938, doi:10.1029/WR024i011p01927Rojstaczer, S. (1988b). Intermediate period response of water levels in wells to crustal strain: sensitivity and noise level. Journal of Geophysical Research, 93(B11), 13619-13634, doi:10.1029/JB093iB11p13619Rojstaczer, S., Agnew, D. C. (1989). The influence of formation materials properties on the response of water levels in wells to Earth tides and atmospheric loading. Journal of Geophysical Research,94(B9), 12403-12411, doi:10.1029/JB094iB09p12403Rojstaczer, S., Riley, F. S. (1990). Response of the water level in a well to Earth tides and atmospheric loading under unconfined conditions. Water Resources Research,26(8), 1803-1817, doi:10.1029/WR026i008p01803Schatz, J. F. (1982). Physical processes of subsidence in geothermal reservoirs. Report No. TR82-39, Terratek, Salt Lake City, Utah, and Lawrence Berkeley Laboratory, Report LBL-14605, 136p.Solinst. (2011). Levelogger series, user guide. Solinst LTD, Canada. 72p.Somerton, W. H. (1980). Some physical properties of Cerro Prieto cores. Geothermics,9(1-2), 159-168, doi:10.1016/0375-6505(80)90029-2Van Der Kamp, G., Gale, J. E. (1983). Theory of earth tide and barometric effects in porous formations with compressible grains. Water Resources Research, 19(2), 538-544, doi:10.1029/WR019i002p00538Vázquez-González, R. (1999). Condiciones geohidrológicas del acuífero somero en la zona del campo geotérmico de Cerro Prieto. Geotermia,15(1), 11-1

3D printed implant structure for breast reconstruction and systematic drug delivery for preventing the reoccurrence of cancer

Breast cancer is one of the most common and deadly cancers among women worldwide. The treatment of breast cancer often involves mastectomy, which can cause physical and psychological distress to the patients, affecting their quality of life and self-esteem [1]. Therefore, the surgical intervention of breast cancer should not include only the removal of a tumor, but also psychological support by restoring the natural shape of the breast and achieving proper aesthetic for each patient. Conventional breast reconstruction techniques have several limitations, such as donor site morbidity, implant failure, infection, and poor cosmetic outcome. Moreover, breast cancer patients often require systemic chemotherapy or hormone therapy after surgery, which can cause severe side effects and complications. In this article, it is proposed a novel implant based 3d printed structure for breast reconstruction and systematic drug delivery. The implant consists of a biodegradable scaffold that is 3d printed with a customized shape, coated with Polydopamine and Alginate, and sized to fit the patient’s chest. The implant provides mechanical support, aesthetic improvement and can also enhance the efficacy and safety of chemotherapy or hormone therapy by delivering treatment directly to the target site through a channel system. The aim of the article presented here is a proposed process protocol for obtaining this prosthesis.The author would like to express their gratitude to the organizing committee of CASEIB for the permission to use their style guides as a reference for the realization of this document and also thank the staff of SEDIC (Industrial Design and Scientific Calculation Service) of the Technical University of Cartagena for their support in the development of this work and for the possibility of having scientific-technical equipment

Performance Analysis of Fault Tolerant Control Systems with I.I.D. Upsets

Abstract-The performance of a class of distributed control systems is analyzed when the interconnected fault tolerant components switch their mode of operation according to independent, identically distributed processes. New expressions for performance metrics are presented for this case, including their sensitivity analysis. These metrics require non-trivial derivations that are not just simplified expressions of the known metrics for the homogeneous Markov case. For a class of distributed control systems, the performance metrics are also computed when the actuators are assumed to have or not have memory. Finally, the results are illustrated with a distributed flight control example

On the relation between fuzzy closing morphological operators, fuzzy consequence operators induced by fuzzy preorders and fuzzy closure and co-closure systems

In a previous paper, Elorza and Burillo explored the coherence property in fuzzy consequence operators. In this paper we show that fuzzy closing operators of mathematical morphology are always coherent operators. We also show that the coherence property is the key to link the four following families: fuzzy closing morphological operators, fuzzy consequence operators, fuzzy preorders and fuzzy closure and co-closure systems. This will allow to translate important well-known properties from the field of approximate reasoning to the field of image processing

Subsurface Flows in and Around Active Regions with Rotating and Non-rotating Sunspots

The temporal variation of the horizontal velocity in subsurface layers beneath three different types of active regions is studied using the technique of ring diagrams. In this study, we select active regions (ARs) 10923, 10930, 10935 from three consecutive Carrington rotations: AR 10930 contains a fast-rotating sunspot in a strong emerging active region while other two have non-rotating sunspots with emerging flux in AR 10923 and decaying flux in AR 10935. The depth range covered is from the surface to about 12 Mm. In order to minimize the influence of systematic effects, the selection of active and quiet regions is made so that these were observed at the same heliographic locations on the solar disk. We find a significant variation in both components of the horizontal velocity in active regions as compared to quiet regions. The magnitude is higher in emerging-flux regions than in the decaying-flux region, in agreement with earlier findings. Further, we clearly see a significant temporal variation in depth profiles of both zonal and meridional flow components in AR 10930, with the variation in the zonal component being more pronounced. We also notice a significant influence of the plasma motion in areas closest to the rotating sunspot in AR 10930 while areas surrounding the non-rotating sunspots in all three cases are least affected by the presence of the active region in their neighborhood.Comment: Solar Physics (in press), includes 11 figure

Tres Niveles de riego, crecimiento y rendimiento de maíz dulce (Zea mays cv. Suresweet) regado por goteo

The objective of this study was to evaluate effects of three irrigation regimes on the growth characteristics and commercial yield of drip-irrigated sweet corn. A field experiment was established in the winter of 1985-86 at the Fortuna substation, Juana Díaz, on the semiarid south coast of Puerto Rico. A randomized complete block design with three irrigation levels (wet = T1, moist = T2, dry = T3) based upon tensiometers at 15-, 30- and 45-cm soil depth, respectively. Treatments were replicated four times. A low pressure biwall drip irrigation system was used. Commercial sweet corn yield was 6487.0, 5034.8 and 3879.6 kg/ha in the T1, T2, and T3 plots, respectively. The wet treatment (T1) yielded significantly more than T2 and T3 at P = 0.05. Increases were 28.9 and 67.3% compared with T2 and T3, respectively. T3 caused a reduction of 41% in the number of ears per hectare. The average weight and length of ears were not significantly different at P = 0.05. Weekly fresh and dry plant weight, fresh and dry total weight, plant height, length of ear versus days after planting relationships were of sigmoidal type. Coefficient of correlation and regression coefficients were significant at P = 0.05.Se estudió cómo tres regímenes de riego por goteo afectan las características de crecimiento y rendimiento de maíz dulce en la subestación de Fortuna, Juana Díaz, P. R. El experimento de campo se estableció con un diseño de bloques completos aleatorizados y repetidos cuatro veces. Se usaron tres intensidades de riego (mojado = T1; húmedo = T2; seco = T3) basados en tensiómetros a 15, 30 y 45 cm. de profundidad, respectivamente. El rendimiento comercial fue de 6,487.8, 5,034.8 y 3,879.6 kg./ha. en T1, T2 y T3, respectivamente. T1 aumentó significativamente el rendimiento comercial al compararlo con T2 y T3 al 5% de probabilidad. El aumento fue de 28.9 y 67.3% en comparación con T2 y T3, respectivamente. T3 redujo el número de mazorcas por hectárea en 41%. El peso medio y el largo de la mazorca no fueron significativamente diferentes al 5% de probabilidad. Las relaciones entre los parámetros de crecimiento y los días después de sembrar mostraron una relación sigmoide