Dispositivo de plataforma móvil para la medición automática de parámetros climáticos en diferentes puntos del interior de un invernadero

Número de publicación:ES2683920 A2 (28.09.2018) También publicado como: ES2683920 R1 (08.10.2018) ES2683920 B1 (16.07.2019) Número de Solicitud: Consulta de Expedientes OEPM (C.E.O.) P201700552 (28.03.2017)Dispositivo móvil que se desplaza bajo invernadero a lo largo de un raíl fijo y que contiene una plataforma auto-nivelable diseñada para la colocación de sensores de medida de parámetros climáticos en una plataforma autoportante que se desplaza de forma controlada por el interior de un invernadero gracias a un raíl sobre el que se desplaza mediante un sistema piñón-cremallera. Para obtener dicho movimiento el elemento móvil de la plataforma autoportante, incorpora un motor eléctrico. A este elemento móvil se acopla un husillo vertical que permite colocar una bandeja a la altura deseada y que se nivela automáticamente mediante la actuación de dos servomotores con realimentación por acelerómetros y giróscopo. El elemento fijo o rail está formado por un perfil de sección cuadrada al que se suelda una cremallera.Universidad de Almerí

Use of mesh windbreaks for soil erosion in olive groves in southeastern Spain

We used windbreak nets to reduce erosion and sediment transport in a semiarid area. A 13x30thread·cm-2 and 39% mesh net facing the wind increased average erosion reduction up to 72% at a height of 0.4 m in recently tilled olive groves. The use of sonic anemometry techniques for identifying wind movement patterns has rarely been exploited for improving field studies, and much less for windbreaks. Sample components collected in traps placed at different heights and distances from the windbreak were analyzed. A Principal Components Analysis was carried out analyzing the combined effect of height and windbreak distance on variables associated with the first two components. Component C1 identified the height at which data were obtained, while Component C2 identified windbreak distance from the sampling point. The effectiveness of this system is shown by the reduction in weight of material caught in traps, and is a cheap and reusable tool applicable after tilling

Improvements in the characterization of permeability and inertial factor of insect-proof screens through pressure drop coefficients

Permeability and inertial factor are the most relevant variables in the Forchheimer equation. They are important to estimate pressure drop when a fluid flow is passing through a porous media. However, in the insect-proof screens field, the existing models to date are still providing a poor predictive accuracy, in part due to they are based on 2D porosity of screens. This work provides novel models for permeability and inertial factor, which are developed from experimental data of insect-proof screens in a wind tunnel and the analytical estimation of 3D porosity. Instead of fitting models directly on observed training data values of permeability and inertial factor, we propose to focus the modelling efforts on finding models dependent on the 3D porosity through the constants in the pressure drop of Forchheimer equation. Since two screens can have the same 2D porosity but different 3D porosity, this makes also models more reliable. The combination of all these aspects has led to parametric models that overcome by far predictions by previous models in the literature

Dispositivo para medir el comportamiento de cimentaciones ante un esfuerzo de tracción o de compresión.

Un dispositivo para medir el comportamiento de cimentaciones ante un esfuerzo de tracción o de compresión, que comprende: un bastidor (1, 2); un cilindro hidráulico (3) montado en el bastidor de modo que pueda pivotar alrededor de al menos un eje; medio

MALAS HIERBAS DEL SUR DE ESPAÑA Identificación Precoz. Versión 2021

El objetivo de esta obra es ayudar al técnico de campo a reconocer las especies arvenses como primer paso para un manejo racional del problema. Esta obra incluye una colección de fichas identificativas de 165 especies arvenses (35 familias botánicas), pero es solo una parte de los contenidos que están disponibles de forma gratuita a través de MalezappUS (https://malezappus.es/). Todos los gastos de la edición de esta obra han sido pagados por la Cátedra Adama que es una Cátedra Universidad-Empresa cuyo objetivo es fomentar la formación, la transferencia y la investigación en el campo de la malherbología.Catedra Adama de la Universidad de Sevill

Evaluation of a quality improvement intervention to reduce anastomotic leak following right colectomy (EAGLE): pragmatic, batched stepped-wedge, cluster-randomized trial in 64 countries

Background Anastomotic leak affects 8 per cent of patients after right colectomy with a 10-fold increased risk of postoperative death. The EAGLE study aimed to develop and test whether an international, standardized quality improvement intervention could reduce anastomotic leaks. Methods The internationally intended protocol, iteratively co-developed by a multistage Delphi process, comprised an online educational module introducing risk stratification, an intraoperative checklist, and harmonized surgical techniques. Clusters (hospital teams) were randomized to one of three arms with varied sequences of intervention/data collection by a derived stepped-wedge batch design (at least 18 hospital teams per batch). Patients were blinded to the study allocation. Low- and middle-income country enrolment was encouraged. The primary outcome (assessed by intention to treat) was anastomotic leak rate, and subgroup analyses by module completion (at least 80 per cent of surgeons, high engagement; less than 50 per cent, low engagement) were preplanned. Results A total 355 hospital teams registered, with 332 from 64 countries (39.2 per cent low and middle income) included in the final analysis. The online modules were completed by half of the surgeons (2143 of 4411). The primary analysis included 3039 of the 3268 patients recruited (206 patients had no anastomosis and 23 were lost to follow-up), with anastomotic leaks arising before and after the intervention in 10.1 and 9.6 per cent respectively (adjusted OR 0.87, 95 per cent c.i. 0.59 to 1.30; P = 0.498). The proportion of surgeons completing the educational modules was an influence: the leak rate decreased from 12.2 per cent (61 of 500) before intervention to 5.1 per cent (24 of 473) after intervention in high-engagement centres (adjusted OR 0.36, 0.20 to 0.64; P < 0.001), but this was not observed in low-engagement hospitals (8.3 per cent (59 of 714) and 13.8 per cent (61 of 443) respectively; adjusted OR 2.09, 1.31 to 3.31). Conclusion Completion of globally available digital training by engaged teams can alter anastomotic leak rates. Registration number: NCT04270721 (http://www.clinicaltrials.gov)

Large expert-curated database for benchmarking document similarity detection in biomedical literature search

Document recommendation systems for locating relevant literature have mostly relied on methods developed a decade ago. This is largely due to the lack of a large offline gold-standard benchmark of relevant documents that cover a variety of research fields such that newly developed literature search techniques can be compared, improved and translated into practice. To overcome this bottleneck, we have established the RElevant LIterature SearcH consortium consisting of more than 1500 scientists from 84 countries, who have collectively annotated the relevance of over 180 000 PubMed-listed articles with regard to their respective seed (input) article/s. The majority of annotations were contributed by highly experienced, original authors of the seed articles. The collected data cover 76% of all unique PubMed Medical Subject Headings descriptors. No systematic biases were observed across different experience levels, research fields or time spent on annotations. More importantly, annotations of the same document pairs contributed by different scientists were highly concordant. We further show that the three representative baseline methods used to generate recommended articles for evaluation (Okapi Best Matching 25, Term Frequency-Inverse Document Frequency and PubMed Related Articles) had similar overall performances. Additionally, we found that these methods each tend to produce distinct collections of recommended articles, suggesting that a hybrid method may be required to completely capture all relevant articles. The established database server located at https://relishdb.ict.griffith.edu.au is freely available for the downloading of annotation data and the blind testing of new methods. We expect that this benchmark will be useful for stimulating the development of new powerful techniques for title and title/abstract-based search engines for relevant articles in biomedical science. © The Author(s) 2019. Published by Oxford University Press