Organisation’s Business Planning and Strategic Decisions

The report examines the nature and importance of the main objectives trends and strategic goals of the organisation G’s Group over the next few years and the value of proposals for our main and most important products, in particular, the focus will be on the following three main areas: great place to work-teams and culture; sustainable products sustainability and environmental social and financial integrity; strategic clients-supply chain and innovation in products in a lean and resistant way. As a triple bottom line strategy, these objectives are based on achieving a series of economic, environmental and social measurements, a concept that our most valued clients, consumers, employees and members of the local community demand of us

Arthropod communities in fungal fruitbodies are weakly structured by climate and biogeography across European beech forests

Aim The tinder fungus Fomes fomentarius is a pivotal wood decomposer in European beech Fagus sylvatica forests. The fungus, however, has regionally declined due to centuries of logging. To unravel biogeographical drivers of arthropod communities associated with this fungus, we investigated how space, climate and habitat amount structure alpha and beta diversity of arthropod communities in fruitbodies of F. fomentarius. Location Temperate zone of Europe. Taxon Arthropods. Methods We reared arthropods from fruitbodies sampled from 61 sites throughout the range of European beech and identified 13 orders taxonomically or by metabarcoding. We estimated the total number of species occurring in fruitbodies of F. fomentarius in European beech forests using the Chao2 estimator and determined the relative importance of space, climate and habitat amount by hierarchical partitioning for alpha diversity and generalized dissimilarity models for beta diversity. A subset of fungi samples was sequenced for identification of the fungus’ genetic structure. Results The total number of arthropod species occurring in fruitbodies of F. fomentarius across European beech forests was estimated to be 600. Alpha diversity increased with increasing fruitbody biomass; it decreased with increasing longitude, temperature and latitude. Beta diversity was mainly composed by turnover. Patterns of beta diversity were only weakly linked to space and the overall explanatory power was low. We could distinguish two genotypes of F. fomentarius, which showed no spatial structuring. Main conclusion Fomes fomentarius hosts a large number of arthropods in European beech forests. The low biogeographical and climatic structure of the communities suggests that fruitbodies represent a habitat that offers similar conditions across large gradients of climate and space, but are characterized by high local variability in community composition and colonized by species with high dispersal ability. For European beech forests, retention of trees with F. fomentarius and promoting its recolonization where it had declined seems a promising conservation strategy

Diseño de un sistema de monitorización para contenedores de residuos

[ES] El trabajo realizado consiste en desarrollar un sistema de monitorización que reporta el nivel de llenado de contenedores de residuos. La ubicación de dichos contenedores está repartida en todo territorio nacional incluyendo las Islas Canarias y Portugal. El sistema tiene que ser capaz de realizar la comunicación del resultado del nivel de llenado con un consumo no muy elevado. Los datos generados se integrarán con el sistema de planificación de rutas actual que tiene la empresa privada. Y gracias a este sistema la empresa será capaz de planificar las rutas de una forma mucho más óptima pudiendo ahorrar recursos y tiempo muy valioso en el vaciado de los contenedores. Se ha realizado un amplio estudio tanto de los componentes necesarios, como de las distintas tecnologías de comunicación existentes en el mundo de la IoT. Valorado aquellos que tienen mejores características y un alto grado de utilización en el mercado. La elección de la tecnología de comunicación IoT se ha realizado en base la problemática de la dispersión geográfica que tienen los contenedores de la empresa.[EN] The aim of this TFM (Trabajo fin de Master) is to develop a reporting system for recycling containers. The main reported data is the fill level and will be perfectly integrated with already existing platform of logistics department in private company. The containers are located trough the territory of Spain, Canary Islands and Portugal. For the creation of the system is used a reduced motherboard (Raspberry PI), ultrasonic sensors and communication board for IoT with low-level consumption. All these components are integrated with the motherboard and the data is recollected by famous reduced programming languages version of Python. The company will be able to save resources and precious time when has to unload containers. A research of the most appropriate components with the existing technologies has been made for the creation of this system, due the problem of geographically located containers through the country.Dimitrov Georgiev, M. (2019). Diseño de un sistema de monitorización para contenedores de residuos. http://hdl.handle.net/10251/129426TFG

Design Optimization of the Fast Switched Chopper Dipole Magnet for the MedAustron Project

The MedAustron hadron therapy centre currently under construction in Wiener Neustadt, Austria, is a synchrotron based accelerator facility for cancer treatment with protons and carbon ions. The concept for such a machine first originated at the European Organization for Nuclear Research (CERN) in 1999 as the Proton-Ion Medical Machine Study (PIMMS). The first centre based on this concept was the National Centre for Oncological Treatment (CNAO) built in Italy, which treated its first patient in November 2012. The MedAustron accelerator complex consists of three particle sources, a linear accelerator, a synchrotron, an extraction line, and four irradiation rooms (1 experimental area with horizontal fixed beam, 2 fixed beam line rooms (one horizontal, and one horizontal and vertical) and a rotating gantry treatment room). It will be capable of accelerating 1H+ protons to energies of 60-250 MeV for clinical purposes, and up to 800 MeV for research purposes. It will also accelerate 12C6+ carbon ions to energies of 120-400 MeV/u. An energy of 400 MeV/u for the carbon ions corresponds to a beam rigidity Bρ of 6.35 Tm, which determines the maximum strength of the required magnetic elements. The treatment rooms will be able to switch the beam on and off rapidly (< 240 µs) during routine operation, or during emergencies. For the purpose, a beam chopper system will be installed in the extraction line, comprising four identical fast switched dipole magnets electrically connected in series. In the “ON” state, the magnets will deviate the beam around a dump block mounted inside the beam vacuum chamber. When the magnets are switched off the beam will be absorbed by the dump, thus making the chopper system a device in the safety chain to prevent a mismatched beam from being sent to a treatment room inadvertently. The initial design of the magnets has been based on experience from CNAO, and realised at CERN by the MedAustron Special Magnets work package. The production of the magnets has been subcontracted to the company Danfysik, based in Taastrup, Denmark. The author was involved in the 3D Finite Element electromagnetic design optimisation and was responsible for the validation of the mechanical models and drawings, and the contract follow-up, ensuring that the specified magnet parameters were respected in the final design. Being the link between the FEM models and the mechanical design, the author optimized the magnet coil heads, and ferrite pole shape in the end-regions, validating their impact on the desired ± 0.2 % field homogeneity in the magnet gap. He examined different insulation schemes and their impact on the field quality, as well as the impact of any possible manufacture and assembly defects and misalignments. The author also studied the influence on the effective magnetic length of the device of the brazing collars for the flanges on the ceramic vacuum chambers. The author was involved in the final magnetic measurements and factory acceptance tests, thus assuring that the magnets delivered to the project would perform according to the technical specification

Servidor web en clúster con alta disponibilidad y distribución de carga. Herramienta de virtualización XEN. Sistema Operativo CentOS

[ES] El trabajo realizado en el TFG ha consistido en configurar un servidor web de alta disponibilidad con reparto de carga, utilizando la herramienta de virtualización XEN con el sistema operativo CentOS. La idea general era tener una granja de servidores que reciben peticiones de los clientes, a través de los nodos que se encargan de repartir la carga entre todos. Estos conseguían la alta disponibilidad con la duplicación de cada nodo maestros, que continuamente intercambian mensajes para saber el estado de cada nodo en todo momento.[EN] The aim of this TFG (Trabajo fin de Grado) is to achieve high availability web cluster using XEN hypervisor on CentOS operation system. The main idea, was to have 2 nodes which are load balancing web petitions from the web clients to the server farm. The high availability is accomplish by cloning the master nodes which are continuously sending heartbeats (keep alive messages) to each other. The purpose of those messages are to aware the system status of every master node.Dimitrov Georgiev, M. (2017). Servidor web en clúster con alta disponibilidad y distribución de carga. Herramienta de virtualización XEN. Sistema Operativo CentOS. http://hdl.handle.net/10251/88473.TFG

Fine Structure and the Huge Zero-Field Splitting in Ni2+ Complexes

We perform a thorough study of the ground state magnetic properties of nickel-based 3d8 complexes. This includes an in-depth analysis of the contribution of the crystal field, spin exchange and spin&ndash;orbit interactions to the ground state magnetic properties. Of particular interest to the current investigation are the presence and occurrence of non-trivial zero-field splitting. The study focuses on the cases of Ni2+ ideal octahedral, trigonal bipyramidal, square planar and tetrahedral geometries. We provide results for the complete energy spectrum, the fine structure related to the ground state and the second set of excited states, low-field magnetic susceptibility and magnetization. In addition, we examine the zero-field fine structure in square pyramidal, trigonal pyramidal and trigonal planar complexes. The obtained results unequivocally show that a moderate or highly coordinated 3d8 complex can neither exhibit spin&ndash;orbit-driven large and giant magnetic anisotropy nor a huge zero-field splitting. Moreover, in the trigonal bipyramidal coordination, a fine structure associated to the ground state cannot result from the spin-orbit coupling alone

An Exchange Mechanism for the Magnetic Behavior of Er3+ Complexes

We study the magnetic properties of the erbium based compounds, Na9[Er(W5O18)2] and [(Pc)Er{Pc{N(C4H9)2}8}]·/−, in the framework of an effective spin exchange model involving delocalized electrons occupying molecular orbitals. The calculations successfully reproduce the experimental data available in the literature for the magnetic spectrum, magnetization and molar susceptibility in dc and ac fields. Owing to their similar molecular geometry, the compounds’ magnetic behaviors are interpreted in terms of the same set of active orbitals and thus the same effective spin coupling scheme. For all three complexes, the model predicts a prompt change in the ground state from a Kramer’s doublet at zero fields to a fully polarized quartet one brought about by the action of an external magnetic field without Zeeman splitting. This alteration is attributed to the enhancement of the effect of orbital interactions over the spin exchange as the magnitude of the external magnetic field increases

Ankle instability - overview of imaging methods

Introduction: Ankle sprains are amongst the most common traumatic soft-tissue injuries and are especially prevalent at all levels of sport, with lateral sprains accounting for 85% of all such inju­ries. The lateral ankle ligament complex consists of the anterior talofibular ligament (ATFL), the cal­caneofibular ligament (CFL), and the posterior talofibular ligament (PTFL). Stretching and in more severe forms - tearing of the ligaments can eventually lead to a sense of instability in the ankle and predispose the patient to receive frequent ankle sprains, a condition known as ankle instability. To determine the integrity of the stabilizing structures of the ankle joint different imaging methods are considered. The following report aims to describe stress X-rays, ultrasound and MRI as methods as­sisting in the diagnostics of ankle instability.Materials and methods: For a period of 2.5 years (August, 2013 - December, 2015) 948 of the patients who presented with inversion ankle trauma in the orthopedic department of St. Anna Hospital, Var­na underwent testing for ankle injury. Out of the suspected for injury 92 underwent sonography of the ankle joint, 95 - stress X-ray and 26 - MRI.Results: The results of the currently presented methods show that they have different diagnostic val­ue. The choice of an imaging method should be based on secondary criteria such as - probability of detecting associated injuries, influence over the health status, time consumption and cost of the ex­amination.Conclusion: Diagnostics of ankle instability is no easy task for the clinician. Signs of damage to the ligaments, discovered after thorough physical examination require imaging methods to verify the in­jury. Based on the difference of stress X-rays, sonography and MRI in their complexity, cost and effi­ciency, they can be put in a diagnostic algorithm for approaching ankle instability