Injury impact loads on supply chain oil sector

Este artículo tiene como finalidad mostrar la manera de mitigar o en el mejor de los casos prevenir las no conformidades que reporta el usuario final por el daño que pueden sufrir los materiales objeto de transporte desde su origen hasta su destino final con fines de aprovisionamiento, todo se basa en una colaboración externa de los actores logísticos sobre la manipulación de las cargas en el transporte local, transporte internacional, procesos aduaneros, almacenamientos temporales, traslados, cargues y descargues. La metodología de investigación científica utilizada se enfocó en lo cuantitativo inductivo tradicional, allí también se especificaron las propiedades de los actores en la cadena de abastecimiento. Así mismo, Las técnicas específicas que se utilizaron para la recolección de datos fueron las observaciones, los documentos y registros de las cargas averiadas y transportadas por el operador logístico integral. En el trabajo de campo, se indagaron a dos funcionarios de la compañía con el propósito de consolidar información que fue registrada en una tabla, todo esto para analizar el impacto que tienen esos casos dentro del abastecimiento. Entre ellos se pudo evidenciar e identificar que uno de los materiales transportados más vulnerables a los daños son las válvulas con 6 casos registrados. Se detectó que estos materiales no son admisibles para la operación y producción en la empresa, lo cual genera un gran impacto a nivel financiero y de competitividad dentro de su industria.This article aims to show how to mitigate or best prevent nonconformity reported by the end user for the damage sustained by materials being transported from origin to final destination provisioning purposes, all is based on an external collaboration of logistics players on handling charges for local transport, international transport, customs procedures, temporary storage, warehousing movements, up-loading and down-loading. The methodology used for scientific research focused on traditional quantitative inductive, there properties of the actors were also specified in the supply chain. Likewise, Specific techniques used for data collection were the observations, documents and records of damaged cargo and transported by the logistics operator. In the field-work, two company officials were investigated in order to consolidate information that was recorded in a table, all to analyze the impact of such cases within the supply. Among them were able to demonstrate and identify one of the transported materials more vulnerable to damage the valves are 6 registered cases. It was found that these materials are not eligible for the operation and production company, which creates a great impact on the financial level and competitiveness within their industry

One- and two-photon scattering from generalized V-type atoms

The one- and two-photon scattering matrix S is obtained analytically for a one-dimensional waveguide and a point-like scatterer with N excited levels (generalized V -type atom). We argue that the two-photon scattering matrix contains sufficient information to distinguish between different level structures which are equivalent for single-photon scattering, such as a V -atom with N = 2 excited levels and two two-level systems. In particular, we show that the scattering with the V -type atom exhibits a destructive interference effect leading to two-photon Coupled-Resonator-Induced Transparency, where the nonlinear part of the two-photon scattering matrix vanishes when each incident photon fulfills a single-photon condition for transparency

Single photons by quenching the vacuum

Heisenberg's uncertainty principle implies that the quantum vacuum is not empty but fluctuates. These fluctuations can be converted into radiation through nonadiabatic changes in the Hamiltonian. Here, we discuss how to control this vacuum radiation, engineering a single-photon emitter out of a two-level system (2LS) ultrastrongly coupled to a finite-band waveguide in a vacuum state. More precisely, we show the 2LS nonlinearity shapes the vacuum radiation into a nonGaussian superposition of even and odd cat states. When the 2LS bare frequency lays within the band gaps, this emission can be well approximated by individual photons. This picture is confirmed by a characterization of the ground and bound states, and a study of the dynamics with matrix product states and polaron Hamiltonian methods.Comment: 9 pages, 10 figure

Physical clutter affects the use of artificial ponds by the Lesser Bulldog Bat Noctilio albiventris (Chiroptera: Noctilionidae)

Bats frequently feed over water bodies, but the net value of the water bodies depends on characteristics such as the amount of physical clutter the water body has. More physical clutter may reduce the detection of prey by bats and may also increase energetic costs by increasing in the number of obstacles to avoid. Consequently, we hypothesized that increasing physical clutter affected the use of an artificial pond where the Lesser Bulldog Bat Noctilio albiventris, a Neotropical fishing bat, forages regularly over water. We experimentally tested this idea recording the number of passes and feeding buzzes emitted by the bats on different nights when we added two levels of obstacles over the water and on control nights with no obstacles. We only found differences between the treatment with the highest obstacle density and the control; there were fewer passes and less feeding buzzes with more obstacles. Therefore, the addition of obstacles did affect the foraging behavior of N. albiventris. Furthermore, we suggest that increasing physical clutter, as in our experiments, may be a cost-effective way to reduce conflicts between local fisher farmers and fishing bats in Neotropical rural areas

Determinant factors of pull up performance in trainedathletes

Aim: to investigate the relationship among pull up and lat pull exercises and differentanthropometric dimensions in trained athletes. Methods: twenty-five males were evaluated for maximum number of pull ups, one-repetitionmaximum lat pull (1RM Lat Pull), lat pull repetitions at 80% 1RM (Lat Pull at 80% 1RM), latpull repetitions at a load equivalent to body mass (Lat Pull at BM-load), and differentanthropometric variables. Furthermore, the subjects were divided in higher (HPG, n = 12) andlower pull up performance (LPG, n = 13) to compare the differences in the variables analyzedbetween both levels. Results: pull ups were significantly correlated with Lat Pull at BM-load (r = .62, P < .01) butneither with 1RM Lat Pull (r = .09) nor with Lat Pull at 80% 1RM (r = -.15). Pull ups showed asignificant (P < .05) negative relationship with body mass (BM, r = -.55), lean body mass(LBM, r = -.51), and fat mass (FM, r = -.52), while BM and LBM were significantly correlatedwith 1RM Lat Pull (r = .55, P < .05). HPG showed significantly (P < .05) lower BM (0/3/97%),FM (1/3/97%) and LBM (1/4/95%) than LPG. Furthermore, HPG attained significantly (P < .05– .001) greater performance in Lat Pull at BM-load (100/0/0%) and 1RM Lat Pull•BM-1(96/3/2%) than LPG. Conclusion: these findings suggest that pull up and lat pull exercises have common elements.Moreover, the anthropometric dimensions seem to influence differently on both exercises,depending on the strength indicator evaluated

Emergent Causality and the N-photon Scattering Matrix in Waveguide QED

In this work we discuss the emergence of approximate causality in a general setup from waveguide QED -i.e. a one-dimensional propagating field interacting with a scatterer. We prove that this emergent causality translates into a structure for the N-photon scattering matrix. Our work builds on the derivation of a Lieb-Robinson-type bound for continuous models and for all coupling strengths, as well as on several intermediate results, of which we highlight (i) the asymptotic independence of space-like separated wave packets, (ii) the proper definition of input and output scattering states, and (iii) the characterization of the ground state and correlations in the model. We illustrate our formal results by analyzing the two-photon scattering from a quantum impurity in the ultrastrong coupling regime, verifying the cluster decomposition and ground-state nature. Besides, we generalize the cluster decomposition if inelastic or Raman scattering occurs, finding the structure of the S-matrix in momentum space for linear dispersion relations. In this case, we compute the decay of the fluorescence (photon-photon correlations) caused by this S-matrix

Infraestructura de datos espaciales de la confederación hidrográfica del Guadalquivir

La CHG tiene entre sus competencias la planificación hidrológica de los recursos hídricos que discurren por la demarcación del Guadalquivir, la realización de obras de interés general, así como la gestión del Domino Público Hidráulico fuera de la Comunidad autónoma de Andalucía. Esto precisa una ingente cantidad de datos relativos al agua y al territorio, que son representados sobre cartografía digital. La CHG ha trabajado en la construcción de una Infraestructura de Datos Espaciales que, además de aglutinar información cartográfica y alfanumérica de calidad contrastada, ofrece servicios remotos de acceso a los datos geoespaciales. Asimismo, de cara a la implementación de las especificaciones de la Directiva Infraestructure for Spatial Information in Europe (INSPIRE) y de su ley de transposición al ámbito nacional, se ha prestado atención a las recomendaciones del Grupo de Trabajo de la Infraestructura de Datos Espaciales de España (GT-IDEE). Igualmente, para la implementación de la Directiva Marco del Agua (DMA), se han seguido las guías técnicas desarrolladas por los Grupos de Sistemas de Información del Agua y Reporting. El fin último de la IDE-CHG es facilitar el conocimiento de la compleja realidad geográfica de la cuenca y potenciar las relaciones con los usuarios a través de una mayor presencia en la web.The CHG have among its responsibilities, the hydrological planning of water resources, which flow through the demarcation of the Guadalquivir, the execution of works of general interest as well as the management of Hydraulic Public Domain outside the Autonomous Community of Andalusia. This requires an enormous amount of data related to water and territory, which are represented on digital cartography.The CHG has worked in the construction of a Spatial Data Infrastructure that, in addition to bringing together cartographic and alphanumeric proven quality information, provides remote access to geospatial data. Also, with a view to implementing the requirements of Directive Infrastructure for Spatial Information in Europe (INSPIRE) and its law of nationwide transposition, CHG has paid attention to the recommendations of the Working Group on Spatial Data Infrastructure of Spain (GT-IDEE). Similarly, for the implementation of the Water Framework Directive (WFD), they have followed the technical guidelines developed by the groups of Water Information Systems and Reporting. The final goal of the IDE-CHG is to facilitate the understanding of the complex geographic reality of the watershed and enhance relationships with users through a greater presence on the web

Sample selection method for arbitrary fading emulation using mode-stirred chambers

Mode-stirred chambers (MSC) consist on one or more resonant cavities coupled in some way in order to allow the measurement of different antenna parameters such as antenna efficiency, correlation, diversity gain or MIMO capacity, among others. In a single-cavity mode-stirred chamber, also known as a reverberation chamber (RC), the environment is isotropic and the amplitude of the signal is Rayleigh distributed. Real environments, however, rarely follow an isotropic Rayleigh-fading scenario. Previous results have shown that a Rician-fading emulation can be obtained via hardware modification using an RC. The different methods lack from an accurate emulation performance and are strongly dependent upon chamber size and antenna configurations. With the innate complexity of more-than-one cavity MSC, the coupling structure generates sample sets which are complex enough so as to contain different clusters with diverse fading characteristics. This paper presents a novel method to accurately emulate a more realistic Rician-fading distribution from a Rayleigh-fading distribution by selecting parts of the sample set that forms different statistical ensembles using a complex two-cavity multi-iris-coupled MSC. Sample selection is performed using a genetic algorithm. Results demonstrate the potential of MSCs for versatile MIMO fading emulation and OTA testing. The method is patent protected by EMITE Ing.This work was supported in part by the Spanish National R&D Programme through TEC2008-05811 and by Fundación Séneca, the R&D coordinating agency for the Region of Murcia (Spain) under the 11783/PI/09 project

Propuesta para el diseño de una estrategia de evaluación por competencias sistémica, dinámica y continua que contribuya al proceso de enseñanza de la función cuadrática en el grado noveno del Colegio San José de las Vegas apoyada por el uso de las TIC

Resumen: Desde una posición transformadora de la evaluación en el aula, se plantea una propuesta integradora entre la física y las matemáticas en los tópicos de movimiento parabólico y función cuadrática. La propuesta esta apuntalada en la formación por competencias y en la implementación del aula virtual del Colegio San José de las Vegas o plataforma Moodle con el propósito de diseñar una evaluación en la que se trascienda de la tradicional prueba de lápiz y papel, a espacios virtuales en los que prime el trabajo cooperativo, la autonomía y la auto exigencia. Por lo tanto y con el firme propósito de no separar la enseñanza, la evaluación y la investigación en educación, se ejecutará un experimento estableciendo dos grupos de comparación: en un grupo denominado experimental, se implementará la propuesta de evaluación e intervención apoyada por las TIC y en el otro grupo llamado control se seguirán las clases con la metodología tradicional, además se aplicarán prepruebas y pospruebas para poder analizar de manera constante los resultados de dicho experimento.Abstract: From a transforming position of assessment in the classroom, I consider an integrating proposal between the physics and the mathematics in the topics of parabolic movement and quadratic function. This proposal is installed in the education by competences and in the implementation of the “virtual classroom” in San José de Las Vegas School or Moodle platform in order to design an evaluation in which one goes beyond the traditional pencil and paper test, to virtual spaces in which the cooperative work, the autonomy and the self- demand are prioritized. Therefore and with the firm intention of not splitting education, assessment and the education research, an experiment will be carried on establishing two comparison groups: in one group denominated “experimental group”, the evaluation proposal will be implemented in conjunction with an intervention supported by ICT and in the other group called “control group” traditional methodology classes will be followed. In addition, a pre-test and post-test will be applied in order to constantly analyze the results of this experiment