Teollisuussuodattimen kehikon hitsauskiinnittimen suunnittelu robottihitsausasemaan Larox Oy:lle

The purpose of this work is to support the company in the designing of a welding clamp and to switch partly from manual welding to automatic welding. The product is a stainless steel frame of an industrial filter. This work includes the theory and the case sections. The theory covers the half of the work and studies significant aspects of designing of a welding clamp. The case reveals few models for a welding clamp for the company's needs. The study of the initial conditions and possible changes to existing product line are also included.

¿El finiquito tiene siempre valor extintivo de la relación labotral?

ENGLISH: It should be distinguished from the socalled 'balance liquidation and termination' three aspects are mixed sometimes creating confusion: The first, referred to repay outstanding accruals, which has a liquidation value, the second consisting of phrases expressing an added discontinuance of the contract value, which joined in the employment relationship with the worker to the employer, and the third, the waiver claim on the grounds that the debts were paid. The signing of cancellation of outstanding accounts or 'liquidation balance' is not the breaking of the employment relationship, but it might be well if you incorporate the unilateral will not flawed and unequivocally expressed the worker. ESPAÑOL: Se deben distinguir de la denominada"liquidación de saldo y finiquito" tres aspectos que en ocasiones aparecen mezclados creando confusión: El primero, referido a saldar devengos pendientes, lo cual tiene un valor liquidatorio; el segundo, consistente en frases añadidas que expresan un valor extintivo del contrato, el cual unía en la relación laboral al empleador con el trabajador, y el tercero, la renuncia a reclamar por considerar que se han satisfecho las deudas. La firma del documento de cancelación de cuentas pendientes o"liquidación de saldo", no supone la ruptura de la relación laboral, pero podría ser así si incorpora la voluntad unilateral no viciada y expresada inequívocamente del trabajador. CATALÀ: Cal distingir de l'anomenada 'liquidació de saldo i quitança' tres aspectes que de vegades apareixen barrejats creant confusió: El primer, referit a saldar meritacions pendents, la qual cosa té un valor liquidador, el segon, consistent en frases afegides que expressen un valor extintiu del contracte, el qual unia en la relació laboral l'ocupador amb el treballador, i el tercer, la renúncia a reclamar per considerar que s'han satisfet els deutes. La signatura del document de cancel·lació de comptes pendents o 'liquidació de saldo', no suposa la ruptura de la relació laboral, però podria ser així si incorpora la voluntat unilateral no viciada i expressada inequívocament del treballador.

Signaling in the Rhizosphere.

Signaling studies in the rhizosphere have focused on close interactions between plants and symbiotic microorganisms. However, this focus is likely to expand to other microorganisms because the rhizomicrobiome is important for plant health and is able to influence the structure of the microbial community. We discuss here the shaping of the rhizomicrobiome and define which aspects can be considered signaling. We divide signaling in the rhizosphere into three categories: (i) between microbes, (ii) from plants to microorganisms, and (iii) from microorganisms to plants. Signals act on diverse organisms including the plant. Mycorrhizal and rhizobial interkingdom signaling has revealed its pivotal role in establishing associations, and the recent discovery of signaling with non-symbiotic microorganisms indicates the important role of communication in shaping the rhizomicrobiome.

«Me quedaré con lo positivo»: Análisis de blogs de mujeres con cáncer de mama

En este artículo se analizan siete blogs escritos por mujeres con cáncer de mama. En primer lugar, se indaga sobre su forma de concebir el cuerpo en relación, por un lado, al impacto del cáncer en los órganos y procesos corporales ligados a la feminidad y, por el otro, a su carácter mortal. En segundo lugar, se analiza su atribución de agencia en relación a la enfermedad y su curación. Se observa que la responsabilidad en la curación se atribuye principalmente a los médicos, pero aparece con fuerza la idea que la mujer se puede sanar mediante cambios en su estilo de vida y a través del pensamiento positivo. Este establece un marco en el que las afectadas de cáncer encuentran dificultades para reconocer y expresar aspectos considerados negativos del proceso como la rabia, la desesperación o el miedo a la muerte, al mismo tiempo que marca una distinción entre pacientes con trayectorias de éxito en su curación y los que no lo consiguen, que son culpabilizados.

Gaziel periodista vist per ell mateix. vuit escolis a un article de 1934

Vint anys després d’haver entrat a La Vanguardia, i sent-ne ja director únic, Gaziel hi publica un article de recapitulació del seu periodisme que permet analitzar i contrastar diferents aspectes de la seva trajectòria professional i, alhora, oferir-ne una interpretació global.

Towards personalization in digital libraries through ontologies

In this paper we describe a browsing and searching personalization system for digitallibraries based on the use of ontologies for describing the relationships between all theelements which take part in a digital library scenario of use. The main goal of thisproject is to help the users of a digital library to improve their experience of use bymeans of two complementary strategies: first, by maintaining a complete history recordof his or her browsing and searching activities, which is part of a navigational userprofile which includes preferences and all the aspects related to community involvement; and second, by reusing all the knowledge which has been extracted from previous usage from other users with similar profiles. This can be accomplished in terms of narrowing and focusing the search results and browsing options through the use of a recommendation system which organizes such results in the most appropriatemanner, using ontologies and concepts drawn from the semantic web field. The complete integration of the experience of use of a digital library in the learning process is also pursued. Both the usage and information organization can be also exploited to extract useful knowledge from the way users interact with a digital library, knowledge that can be used to improve several design aspects of the library, ranging from internal organization aspects to human factors and user interfaces. Although this project is still on an early development stage, it is possible to identify all the desired functionalities and requirements that are necessary to fully integrate the use of a digital library in an e-learning environment.

Fotofísica de carotenóides e o papel antioxidante de b-caroteno

Carotenoid polyenes play a wide role in nature and their photophysical properties make of these pigments a focus of research in photochemistry, photobiology and photomedicine. Some aspects of the singlet and triplet states and, their interaction with molecular and singlet oxygen and free radicals are briefly reviewed in this article.

Mobility Among Social Education Students at the University of Girona: Taking Stock of a Decade of Fieldwork Practice Abroad

The following article is divided into five sections, each one with a specific objective. The first section briefly presents the student mobility experiences obtained basically through the fieldwork practice course in social education studies at the University of Girona. The second section delves more deeply to explore the value of the exchange and the student mobility experience over one semester of intensive fieldwork practice. The third section presents data about the students who have participated in this experience inall ten of the graduating classes. The fourth part offers an assessment of the experience and reports which aspects are considered essential to a good student mobility experience. Finally, various actions to be taken to improve these educational experiences within the social education studies at the University of Girona are specified

Model per a la creació d'un itinerari cultural : seguint els passos de Mossé Ben Nahman

El present estudi analitza una part de la bibliografia existent sobre els itineraris culturals, recollint les aportacions de major rellevància i elaborant un model propi per a la elaboració d’aquests. Fer notori el fet que s’afegeixen també nocions que orienten a la seva gestió i control. Tanmateix, es fa una proposta d’itinerari basada en un personatge històric, Mossé Ben Nahman, i el seu lligam amb les ciutats de Girona i Barcelona. Destacar la rellevància de les temàtiques tractades, ja que ambdues es troben presents en estudis i projectes en curs, esdevenint subjectes en període d’expansió i anàlisi

Um experimento com propostas múltiplas para um laboratório de química geral

This article suggests a sequence of experiments on the preparation, analysis and some photochemical aspects of potassium tris (oxalato) ferrate(III) trihydrate. The sequence of experiments could be carried out in four or five 4-hour laboratory periods. The new part of this article is related to the kinetics studies involving the ambient illumination as well as the use of the cellophane paper of different colors as light filters. The aspects such as quantum yield, light absorption and photochemical reactions are explored in order to illustrate the relationships between the exposure time, light intensity and wavelength range on the photochemical reactions.

Experimentos simples usando fotometria de chama para ensino de princípios de espectrometria atômica em cursos de química analítica

The purpose of this paper is the development of simple strategies to teach basic concepts of atomic spectrometry. Metals present in samples found in the daily lives of students are determined by flame atomic emission spectrometry (FAES). FAES is an accurate, precise, and inexpensive analytical method often used for determining sodium, potassium, lithium, and calcium. Historical aspects and their contextualization for students are also presented and experiments with samples that do not require pre-treatment are described.

Analysis of the tensile modulus of polypropylene composites reinforced with stone groundwood fibers

One of the most relevant properties of composite materials to be considered is stiffness. Fiberglass has been used traditionally as a fibrous reinforcing element when stiff materials are required. However, natural fibers are been exploited as replacements for synthetic fibers to satisfy environmental concerns. Among the different natural fibers, wood fibers show the combination of relatively high aspect ratio, good specific stiffness and strength, low density, low cost, and less variability than other natural fibers of such those from annual crops. In this work, composites from polypropylene and stone groundwood fibers from softwood were prepared and mechanically characterized under tensile loads. The Young’s moduli of the ensuing composites were analyzed and their micromechanics aspects evaluated. The reinforcing effect of stone groundwood fibers was compared to that of conventional reinforcement such fiberglass. The Halpin-Tsai model with the modification proposed by Tsai-Pagano accounted fairly for the behavior of PP composites reinforced with stone groundwood fibers. It was also demonstrated that the aspect ratio of the reinforcement plays a role in the Young’s modulus of injection molded specimens

A three dimensional study of heat transfer in a supercritical circulating fluidized bed combustor

From the boiler design point of view, it is imperative to know and understand the operation of the boiler. Since comprehensive measurement of a large furnace is impossible, the furnace can be modeled in order to study its behavior and phenomena. This requires the used model to be validated to correspond with the physical furnace behavior. In this thesis, a three dimensional furnace model is validated to match a bituminous coal utilizing, supercritical once-through circulating fluidized bed combustor based on measurement data. The validated model is used for analyzing the furnace heat transfer. Other heat transfer analysis methods are energy balance method based on tube surface temperature measurements and a method based on measured temperature difference between the tube crest and the fin. The latter method was developed in the thesis using Fluent-software. In the theory part, literature is reviewed and the fundamental aspects of circulating fluidized bed are discussed. These aspects are solid particle behavior in fluidization known as hydrodynamics, behavior of fuel and combustion and heat transfer. Fundamental aspects of modeling are also presented.

Comunicar la ciudad desde el paisaje: hacia una teoría del landscape branding

The need to decode landscape meanings, the society- landscape interaction (intra- and inter-personal communication) and, more recently, the uses of landscape as a territorial sight linked to advertising communication, citymarketing or place branding (mass communication) highlights the study of landscape persuasion, which includes clear emotional, symbolic and, therefore, communicative aspects. The landscape, as a territory image or face, gathers the essence of the implicit message in the space, thus working as a great metaphor for city communication. Regarding the foregoing, specific communication research with intangible landscapes —together with the recent emergence of emotional geographies— suggests a new territorial message theory based on the union of geographical, landscape, emotional and communicational variables. Landscape has historically been studied by geographers, architects, historians or sociologists, among others researchers, but it has not been analysed from communicational viewpoints. In this sense, the proliferation of analyses highlighting the role played by the territory as a communication mediator in the interaction process between society and its spaces (cognition and/or perception) is also remarkable. Current sales of territorial identities lead to increases in the production of territory brands, which have gathered a noticeable relevance within the last years.