Ranking-Dominance Relation for (Evolutionary) Multi-Objective Optimization

An alternative relation to Pareto-dominance relation is proposed. The new relation is based on ranking a set of solutions according to each separate objective and an aggregation function to calculate a scalar fitness value for each solution. The relation is called as ranking-dominance and it tries to tackle the curse of dimensionality commonly observedin evolutionary multi-objective optimization. Ranking-dominance can beused to sort a set of solutions even for a large number of objectives when Pareto-dominance relation cannot distinguish solutions from one another anymore. This permits search to advance even with a large number of objectives. It is also shown that ranking-dominance does not violate Pareto-dominance. Results indicate that selection based on ranking-dominance is able to advance search towards the Pareto-front in some cases, where selection based on Pareto-dominance stagnates. However, in some cases it is also possible that search does not proceed into direction of Pareto-front because the ranking-dominance relation permits deterioration of individual objectives. Results also show that when the number of objectives increases, selection based on just Pareto-dominance without diversity maintenance is able to advance search better than with diversity maintenance. Therefore, diversity maintenance is connive at the curse of dimensionality.

Spray coating technique asa surface treatment for woodcontaining paper grades

The objective of this work was to introduce the emerging non-contacting spray coating process and compare it to the existing coating techniques. Particular emphasis was given to the details of the spraying process of paper coating colour and the base paper requirements set by the new coating method. Spraying technology itself is nothing new, but the atomisation process of paper coating colour is quite unknown to the paper industry. The differences between the rheology of painting and coating colours make it very difficult to utilise the existing information from spray painting research. Based on the trials, some basic conclusion can be made:The results of this study suggest that the Brookfield viscosity of spray coating colour should be as low as possible, presently a 50 mPas level is regarded as an optimum. For the paper quality and coater runnability, the solids level should be as high as possible. However, the graininess of coated paper surface and the nozzle wear limits the maximum solids level to 60 % at the moment. Most likelydue to the low solids and low viscosity of the coating colour the low shear Brookfield viscosity correlates very well with the paper and spray fan qualities. High shear viscosity is also important, but yet less significant than the low shear viscosity. Droplet size should be minimized and besides keeping the brrokfield viscosity low that can be helped by using a surfactant or dispersing agent in the coating colour formula. Increasing the spraying pressure in the nozzle can also reduce the droplet size. The small droplet size also improves the coating coverage, since there is hardly any levelling taking place after the impact with the base paper. Because of the lack of shear forces after the application, the pigment particles do not orientate along the paper surface. Therefore the study indicates that based on the present know-how, no quality improvements can be obtained by the use of platy type of pigments. The other disadvantage of them is the rapid deterioration of the nozzle lifetime. Further research in both coating colour rheology and nozzle design may change this in the future, but so far only round shape pigments, like typically calcium carbonate is, can be used with spray coating. The low water retention characteristics of spray coating, enhanced by the low solids and low viscosity, challenge the base paper absorption properties.Filler level has to be low not to increase the number of small pores, which have a great influence on the absorption properties of the base paper. Hydrophobic sizing reduces this absorption and prevents binder migration efficiently. High surface roughness and especially poor formation of the base paper deteriorate thespray coated paper properties. However, pre-calendering of the base paper does not contribute anything to the finished paper quality, at least at the coating colour solids level below 60 %. When targeting a standard offset LWC grade, spraycoating produces similar quality to film coating, but yet blade coating being on a slightly better level. However, because of the savings in both investment and production costs, spray coating may have an excellent future ahead. The porousnature of the spray coated surface offers an optimum substrate for the coldset printing industry to utilise the potential of high quality papers in their business.

Älykkäiden ohjausjärjestelmien käyttö puutavarakuormaimen väsymiskestoiän parantamisessa

Työn tavoitteena oli tutkia älykkäiden ohjausjärjestelmien käyttöä mekatronisen koneen väsymiskeston parantamisessa. Älykkäiden järjestelmien osalta työssä keskityttiin lähinnä neuroverkkojen ja sumean logiikan mahdollisuuksien tutkimiseen. Tämän lisäksi työssä kehitettiin väsymiskestoikää lisäävä älykkäisiin järjestelmiin perustuva ohjausalgoritmi. Ohjausalgoritmi liitettiin osaksi puutavarakuormaimen ohjausta. Ohjaimen kehittely suoritettiin aluksi simulointimallien avulla. Laajemmat ohjaimen testaukset suoritettiin laboratoriossa fyysisen prototyypin avulla. Tuloksena puutavarakuormaimen puomin väsymiskestoikäennuste saatiin moninkertaistettua. Väsymiskestoiän parantumisen lisäksi ohjainalgoritmi myös vaimentaa kuormaimen värähtelyä.

Ikääntyvien työkyky ja työkykyä ylläpitävä toiminta, case Stora Enson Anjalankosken tehtaat

Työkyky koostuu psyykkisestä, sosiaalisesta ja fyysisestä osa-alueesta. Psyykkinen osa-alue koostuu jaksamisesta, sitoutumisesta, vuorovaikutuksesta sekä osaamisesta eli siis lähinnä yksilön ominaisuuksista, kun taas sosiaaliseen työkykyyn vaikuttavat myös työyhteisön jäsenet, työympäristö sekä organisaatiokulttuuri. Fyysinen työkyky koostuu pääosin niistä fyysisen toimintakyvyn ominaisuuksista, joita työn suorittamisessa tarvitaan. Toimintakyky määrittää myös sosiaalista ja psyykkistä työkykyä, siltä osin kun sitä tarvitaan työstä selviytymisessä. Ikääntyminen asettaa haasteita mutta myös mahdollisuuksia työkyvylle. Selkeintä heikkeneminen on fyysisellä osa-alueella, kun taas sosiaalisen ja psyykkisen osa-alueen heikkeneminen ei yleensä näy työiässä. Päinvastoin, ikääntymisen on todettu parantavan esim. sosiaalisia taitoja ja lisäävän arkipäivän viisautta.Työkykytoiminnalla pyritään ylläpitämään työkykyä tai ehkäisemään tai korjaamaan työkyvyn alenemaa. Se voi kohdistua yksilöön, työyhteisöön tai koko organisaatioon. Toiminnan onnistuminen edellyttää kaikkien organisaation tai työyhteisön jäsenten osallistumista ja sitoutumista toimintaan, ja onnistuneen työkykytoiminnan seurauksena hyötyvät työntekijän ja yrityksen lisäksi yhteiskunta. Työkykytoiminnan keinoja ovat työn, yksilön, esimiestyön sekä työyhteisön kehittäminen.Stora Enson Anjalankosken tehtailla toteutettiin kolmevuotinen ikääntyvien työkykyprojekti, jonka tavoitteena oli työ- ja toimintakykyä parantamalla ehkäistä ennenaikaista eläköitymistä ja säilyttää ikääntyvien hiljainen tieto mahdollisimman pitkään yrityksessä. Projektin jäsenien työkyky oli jo varsin korkea jo projektin alussa, mutta se onnistuttiin pitämään ikääntymisestä huolimatta korkealla tasolla projektin aikana. Projektin jäseniin kohdistuneen tutkimuksen perusteella tärkeimmäksi työkyvyn määrittäjäksi nousivat työtehtävät tai paremminkin niiden soveltuminen yksilön tarpeisiin, kykyihin ja arvostuksiin.

Manual para buenos directivos de PYMES que quieren innovar: Empresas 2.0

Estamos viviendo desde la entrada al siglo XXI una explosión acelerada de las tecnologías, de las TIC’s, las redes sociales en internet, etc. que están modificando enormemente los hábitos de consumo y los principios de la sociedad. A todo ello, hay que añadir la situación de crisis económica general que existe en el mundo, y que afecta enormemente a las empresas y al tejido empresarial de un país. En este entorno, las compañías deben basar sus estrategias en estar cerca del cliente y ser capaces de visualizar necesidades no cubiertas. Sobre todo, las empresas deben transformarse para crear organizaciones humanizadas capaces de generar innovación y adaptarse rápidamente a los nuevos entornos que van surgiendo. Para poder hacer frente a esta nueva situación las empresas deben poner en valor el talento de todas las personas que forman parte de la organización. El activo más importante y escaso, para poder desarrollar estrategias triunfadoras. El trabajo pretende resumir la situación actual para las empresas, recoger todas las ideas y nuevas tendencias que existen en cuanto a la gestión del talento, la organización del trabajo y la creación de estructuras que permitan innovar. A lo largo del trabajo se van desarrollando las diferentes herramientas, sistemas y disciplinas que están a disposición de las empresas para crear un entorno que favorezca la innovación, como camino para mantenerse en el mercado global.

The SwissLipids knowledgebase for lipid biology.

MOTIVATION: Lipids are a large and diverse group of biological molecules with roles in membrane formation, energy storage and signaling. Cellular lipidomes may contain tens of thousands of structures, a staggering degree of complexity whose significance is not yet fully understood. High-throughput mass spectrometry-based platforms provide a means to study this complexity, but the interpretation of lipidomic data and its integration with prior knowledge of lipid biology suffers from a lack of appropriate tools to manage the data and extract knowledge from it. RESULTS: To facilitate the description and exploration of lipidomic data and its integration with prior biological knowledge, we have developed a knowledge resource for lipids and their biology-SwissLipids. SwissLipids provides curated knowledge of lipid structures and metabolism which is used to generate an in silico library of feasible lipid structures. These are arranged in a hierarchical classification that links mass spectrometry analytical outputs to all possible lipid structures, metabolic reactions and enzymes. SwissLipids provides a reference namespace for lipidomic data publication, data exploration and hypothesis generation. The current version of SwissLipids includes over 244 000 known and theoretically possible lipid structures, over 800 proteins, and curated links to published knowledge from over 620 peer-reviewed publications. We are continually updating the SwissLipids hierarchy with new lipid categories and new expert curated knowledge. AVAILABILITY: SwissLipids is freely available at http://www.swisslipids.org/. CONTACT: alan.bridge@isb-sib.ch SUPPLEMENTARY INFORMATION: Supplementary data are available at Bioinformatics online.

Lujitemuovisen kaavinterän kannatinpalkin suunnittelu

Diplomityössä perehdytään lujitemuovikomposiitteihin sekä niiden valmistusmenetelmiin. Tavoitteena on kehittää lujitemuovinen paperikoneen kaavinterän kannatinpalkkirakenne. Suunniteltavalla tuotteella pyritään korvaamaan perinteisesti teräksestä valmistetut paperikoneiden kaavinterän pidikepalkit paremmin tarkoitukseen sopivalla lujitemuovisella rakenteella sekä parantamaan jo tuotannossa olevan tuotteen ominaisuuksia. Työssä selvitetään tuotteen vaatimukset, joiden pohjalta laaditaan tuotteen vaatimusprofiili ja suoritetaan materiaalinvalinta perustuen ominaisarvovertailuihin. Suunnitteluosiossa tutkitaan eri rakenneratkaisujen soveltuvuutta kohteeseen. Tutkimustulosten perusteella saatiin kattava kuva eri materiaalien soveltuvuudesta kohteeseen sekä kehitettiin rakenneratkaisu, joka täyttää tuotteelta vaaditut ominaisuudet. Tutkimustulosten pohjalta syntyi myös uuden tyyppinen rakenne jolla saavutetaan huomattavaa tilansäästöä perinteisiin rakenneratkaisuihin nähden. Tämän rakenneratkaisun kehitystyötä on tarkoitus jatkaa.

Runkoverstaan tuotannon läpimenoajan sekä valmistusystävällisyyden kehittäminen

Diplomityö tehtiin kansainväliseen maanalaisia kaivoskoneita toimittavaan yritykseen. Diplomityön tavoitteena oli kartoittaa runkojen läpimenoaikaa robottihitsauksen ja koneistuksen osalta Normet Oy:n hitsaamon tuotannossa. Diplomityön teoriaosassa on esitelty tuotantojärjestelmiä, tuotantotekniikan kehittämisen osa-alueita, valmistusystävällisyyttä, tuotannonohjausta sekä tuotannon mittareita tuottavuuden kehittämisen näkökulmasta. Diplomityön kokeellisessa osassa tehtiin nykyisten tuotantoprosessien tarkat aikaseurannat. Ensisijaisesti koneistuksen kehittämisellä tavoiteltiin asetus- ja sivuaikojen minimointia sekä tuottavampaa lastuamista. Näin ollen uusien työkalujen sekä koneistusinnovaatioiden löytäminen oli avainasemassa kehitystyössä. Robotisoinnin kehittämisessä tärkeintä on tehokkaampien hitsausprosessien hyödyntäminen, laatutekijöiden analysointi sekä robottiystävällisten konstruktioiden käyttöönotto. Case-esimerkissä näitä menetelmiä pyritään esittämään Normetin volyymituote NT100-rungossa.

O uso de cálculos teóricos como ferramenta para a detecção de moléculas no meio interestelar: o caso dos carbenos CnNH (n=1, 3 e 5)

This work reviews some applications of ab initio molecular orbital calculations to the elucidation of structures of interstellar molecules. The case of the CnNH (n=1, 3 and 5 ) carbenes is extensively analyzed and discussed. Theoretical conformational analysis and predicted values for the rotational constants and dipole moments of the singlet state of C5NH are reported for the first time and a comparison is performed with results previously obtained for C3NH and CNH.

eLab, a Personal Learning Environment for the Green Open Innovation Platform

Open Innovation is a relatively new concept which involves a change of paradigm in the R+D+i processes of companies whose aim is to create new technologies or new processes. If to this change, we add the need for innovation in the new green and sustainability economy, and we set out to create a collaborative platform with a learning space where this can happen, we will be facing an overwhelming challenge which requires the application of intelligent programming technologies and languages at the service of education.The aim of the Green IDI (Green Open Innovation) ¿ Economic development and job creation vector in SMEs, based on the environment and sustainability project is to create a platform where companies and individual researchers can perform open innovation processes in the field of sustainability and the environment.The Green IDI (Green Open Innovation) project is funded under the program INNPACTO by the Ministry of Science and Innovation of Spain and is being developed through a consortium formed by the following institutions: GRUPO ICA; COMPARTIA; GRUPO INTERCOM; CETAQUA and the Instituto de Investigación en Inteligencia Artificial (IIIA) from Consejo Superior de Investigaciones Científicas (CSIC). Also the consortium include FUNDACIÓ PRIVADA BARCELONA DIGITAL; PIMEC and UNIVERSITAT OBERTA DE CATALUNYA (UOC).Sustainability and positive action for the environment are considered the principle vector of economic development for companies. As Nicolás Scoli says (2007) ¿in short, preventing unnecessary consumption and the efficient consumption of resources means producing greater wealth with less. Both effects lead to reduced pollution linked to production and consumption¿.The Spanish Sustainable Development Strategy (EEDS) plan defends consumption and sustainable production linked to social and economic development by adhering to the commitment not to endanger ecosystems and abolishing the idea that economic growth is directly proportional to the deterioration of the environment.Uniting the Open Innovation and New Green Economy concepts leads to the "Green Open Innovation¿ Platform creation project.This article analyses the concept of open innovation and defines the importance of the new green and sustainable economy. Lastly, it proposes the creation of eLab. The eLab is defined as an Open Green Innovation Platform personal and collaborative education space which is fed by the interactions of users and which enables innovation processes based on new green economy concepts to be carried out.The creation of a personal learning environment such as eLab on the Green Open Innovation Platform meets the need to offer a collaborative space where platform users can improve their skills regarding the environment and sustainability based on collaborative synergies through Information and Communication Technologies.

Distribuição de compostos organoclorados nas águas e sedimentos da bacia do rio Piracicaba/SP - Brasil

The great utilization of synthetic and persistent xenobiotic cumulative compounds is the main causes of the deterioration of aquatic ecosystems. The one of objective of this work was the determination of the organochlorine levels in the Piracicaba river basin, situated at the center of São Paulo state. Four PCBs congeners, PCP and HCB were determined by GC-ECD in two different matrices: water and sediments. The pattern of the compound distribution indicated a dominance of PCP, HCB and PCB-200. The results indicated contamination in the sampling points located in Campinas, Piracicaba, Santa Bárbara d'Oeste and Sumaré cities.

Proyecto Vive la vida : Propuesta de intervención basada en un programa de psicología positiva y motivacional para mejorar la autoestima y disminuir el aislamiento social en mayores jubilados

La jubilación y la vejez implican la necesidad de una reorganización de los roles sociales, personales y familiares, y una adaptación al nuevo estatus social. Es una etapa crítica en la que puede aparecer un deterioro de la autoestima y el incremento del aislamiento social. Por ello, los objetivos de la presente intervención son incrementar la autoestima y disminuir el aislamiento social en el mayor jubilado.

A Thermodynamically Consistent Damage Model for Advanced Composites

A continuum damage model for the prediction of damage onset and structural collapse of structures manufactured in fiber-reinforced plastic laminates is proposed. The principal damage mechanisms occurring in the longitudinal and transverse directions of a ply are represented by a damage tensor that is fixed in space. Crack closure under load reversal effects are taken into account using damage variables established as a function of the sign of the components of the stress tensor. Damage activation functions based on the LaRC04 failure criteria are used to predict the different damage mechanisms occurring at the ply level. The constitutive damage model is implemented in a finite element code. The objectivity of the numerical model is assured by regularizing the dissipated energy at a material point using Bazant’s Crack Band Model. To verify the accuracy of the approach, analyses ofcoupon specimens were performed, and the numerical predictions were compared with experimental data

Hybrid LC Filter for Power Electronic Drives: Theory and Implementation

Power electronic converter drives use, for the sake of high efficiency, pulse-width modulation that results in sequences of high-voltage high-frequency steep-edged pulses. Such a signal contains a set of high harmonics not required for control purposes. Harmonics cause reflections in the cable between the motor and the inverter leading to faster winding insulation ageing. Bearing failures and problems with electromagnetic compatibility may also result. Electrical du/dt filters provide an effective solution to problems caused by pulse-width modulation, thereby increasing the performance and service life of the electrical machines. It is shown that RLC filters effectively decrease the reflection phenomena in the cable. Improved (simple, but effective) solutions are found for both differential- and common-mode signals; these solutions use a galvanic connection between the RLC filter star point and the converter DC link. Foil chokes and film capacitors are among the most widely used components in high-power applications. In actual applications they can be placed in different parts of the cabinet. This fact complicates the arrangement of the cabinet and decreases the reliability of the system. In addition, the inductances of connection wires may prevent filtration at high frequencies. This thesis introduces a new hybrid LC filter that uses a natural capacitance between the turns of the foil choke based on integration of an auxiliary layer into it. The main idea of the hybrid LC filter results from the fact that both the foil choke and the film capacitors have the same roll structure. Moreover, the capacitance between the turns (“intra capacitance”) of the foil inductors is the reason for the deterioration of their properties at high frequencies. It is shown that the proposed filter has a natural cancellation of the intra capacitance. A hybrid LC filter may contain two or more foil layers isolated from each other and coiled on a core. The core material can be iron or even air as in the filter considered in this work. One of the foils, called the main foil, can be placed between the inverter and the motor cable. Other ones, called auxiliary foils, may be connected in star to create differential-mode noise paths, and then coupled to the DC link midpoint to guarantee a traveling path, especially for the common-mode currents. This way, there is a remarkable capacitance between the main foil and the auxiliary foil. Investigations showed that such a system can be described by a simple equivalent LC filter in a wide range of frequencies. Because of its simple hybrid construction, the proposed LC filter can be a cost-effective and competitive solution for modern power drives. In the thesis, the application field of the proposed filter is considered and determined. The basics of hybrid LC filter design are developed further. High-frequency behaviour of the proposed filter is analysed by simulations. Finally, the thesis presents experimental data proving that the hybrid LC filter can be used for du/dt of PWM pulses and reduction of common-mode currents.

Enseñar a aprender a pensar en los centros educativos, incluso en las actividades de evaluación.= Teaching to learn how to think at schools, even within assessment activities

El auténtico protagonismo de los centros educativostiene que dirigirse a ayudar a pensar a sus alumnos y aenseñarlos a aprender, es decir, el docente tiene queenseñar estrategias de aprendizaje y debe promover elesfuerzo del estudiante para facilitar la construcción deesquemas y el aprendizaje permanente.El profesor debe utilizar cualquier situación deaprendizaje para enseñar dichas estrategias deaprendizaje, incluso en las situaciones de evaluación;por lo tanto, en este trabajo se sugiere que en lasevaluaciones de los alumnos y alumnas se tenga encuenta la metacognición como factor fundamental en elaprendizaje y la enseñanza