936 resultados para Process control -- Data processing
Resumo:
[eng] In the Unitat de Laboratoris Docents (ULD) of the Faculty of Pharmacy a Quality System has been implemented to improve the management of the training laboratories and to introduce practical aspects of this system in the formation of the students. In the last years, we have designed the process map, and the flowcharts with the corresponding key point tables from which the indicators have been identified. The main objective of this work was to found a system that allows the evaluation of the ULD service, the teaching innovation introduced as well as the grade of implication of the lecturers who teach practical training and thus are directly responsible for the formation of the students. The values obtained for the operating ULD procedures correspond to the data from obligatory courses, with practical teaching in the ULD laboratories, of Pharmacy and Food Science and Technology degrees for the 2005-06 academic year. [spa] En la Unidad de Laboratorios Docentes (ULD) de la Facultad de Farmacia, se ha implantado un sistema de gestión de la calidad con el objetivo de mejorar la gestión de la docencia práctica y a su vez introducir aspectos prácticos de la gestión de la calidad en la formación de los estudiantes. En los últimos años se ha elaborado el mapa de procesos, el diagrama de flujo y la ficha de cada proceso a partir de la cual ha sido posible la identificación de los indicadores. El Prat, J. et al. Edusfarm, revista d"educació superior en Farmàcia. Núm. 2. 2007 2 principal objetivo del presente trabajo es buscar un sistema que permita evaluar el propio funcionamiento de la ULD, la innovación realizada así como el grado de implicación de los profesores que imparten la docencia práctica y que son responsables directos de la formación de los estudiantes. Los valores obtenidos para los procesos operativos de la ULD provienen de los datos generados en el curso académico 2005-2006 en las asignaturas troncales de las Licenciaturas de Farmacia y de Ciencia y Tecnología de los Alimentos.
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[eng] In the Unitat de Laboratoris Docents (ULD) of the Faculty of Pharmacy a Quality System has been implemented to improve the management of the training laboratories and to introduce practical aspects of this system in the formation of the students. In the last years, we have designed the process map, and the flowcharts with the corresponding key point tables from which the indicators have been identified. The main objective of this work was to found a system that allows the evaluation of the ULD service, the teaching innovation introduced as well as the grade of implication of the lecturers who teach practical training and thus are directly responsible for the formation of the students. The values obtained for the operating ULD procedures correspond to the data from obligatory courses, with practical teaching in the ULD laboratories, of Pharmacy and Food Science and Technology degrees for the 2005-06 academic year. [spa] En la Unidad de Laboratorios Docentes (ULD) de la Facultad de Farmacia, se ha implantado un sistema de gestión de la calidad con el objetivo de mejorar la gestión de la docencia práctica y a su vez introducir aspectos prácticos de la gestión de la calidad en la formación de los estudiantes. En los últimos años se ha elaborado el mapa de procesos, el diagrama de flujo y la ficha de cada proceso a partir de la cual ha sido posible la identificación de los indicadores. El Prat, J. et al. Edusfarm, revista d"educació superior en Farmàcia. Núm. 2. 2007 2 principal objetivo del presente trabajo es buscar un sistema que permita evaluar el propio funcionamiento de la ULD, la innovación realizada así como el grado de implicación de los profesores que imparten la docencia práctica y que son responsables directos de la formación de los estudiantes. Los valores obtenidos para los procesos operativos de la ULD provienen de los datos generados en el curso académico 2005-2006 en las asignaturas troncales de las Licenciaturas de Farmacia y de Ciencia y Tecnología de los Alimentos.
Resumo:
[eng] In the Unitat de Laboratoris Docents (ULD) of the Faculty of Pharmacy a Quality System has been implemented to improve the management of the training laboratories and to introduce practical aspects of this system in the formation of the students. In the last years, we have designed the process map, and the flowcharts with the corresponding key point tables from which the indicators have been identified. The main objective of this work was to found a system that allows the evaluation of the ULD service, the teaching innovation introduced as well as the grade of implication of the lecturers who teach practical training and thus are directly responsible for the formation of the students. The values obtained for the operating ULD procedures correspond to the data from obligatory courses, with practical teaching in the ULD laboratories, of Pharmacy and Food Science and Technology degrees for the 2005-06 academic year. [spa] En la Unidad de Laboratorios Docentes (ULD) de la Facultad de Farmacia, se ha implantado un sistema de gestión de la calidad con el objetivo de mejorar la gestión de la docencia práctica y a su vez introducir aspectos prácticos de la gestión de la calidad en la formación de los estudiantes. En los últimos años se ha elaborado el mapa de procesos, el diagrama de flujo y la ficha de cada proceso a partir de la cual ha sido posible la identificación de los indicadores. El Prat, J. et al. Edusfarm, revista d"educació superior en Farmàcia. Núm. 2. 2007 2 principal objetivo del presente trabajo es buscar un sistema que permita evaluar el propio funcionamiento de la ULD, la innovación realizada así como el grado de implicación de los profesores que imparten la docencia práctica y que son responsables directos de la formación de los estudiantes. Los valores obtenidos para los procesos operativos de la ULD provienen de los datos generados en el curso académico 2005-2006 en las asignaturas troncales de las Licenciaturas de Farmacia y de Ciencia y Tecnología de los Alimentos.
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Background Nowadays, combining the different sources of information to improve the biological knowledge available is a challenge in bioinformatics. One of the most powerful methods for integrating heterogeneous data types are kernel-based methods. Kernel-based data integration approaches consist of two basic steps: firstly the right kernel is chosen for each data set; secondly the kernels from the different data sources are combined to give a complete representation of the available data for a given statistical task. Results We analyze the integration of data from several sources of information using kernel PCA, from the point of view of reducing dimensionality. Moreover, we improve the interpretability of kernel PCA by adding to the plot the representation of the input variables that belong to any dataset. In particular, for each input variable or linear combination of input variables, we can represent the direction of maximum growth locally, which allows us to identify those samples with higher/lower values of the variables analyzed. Conclusions The integration of different datasets and the simultaneous representation of samples and variables together give us a better understanding of biological knowledge.
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Tässä tutkielmassa on tarkasteltu case- yrityksen henkilöstön näkemyksiä henkilöstön kehittämisestä sekä case- yrityksen kehittämisestä. Tutkielman tavoitteena on ollut selvittää kuinka Oy Gust. Raninin henkilöstöä voitaisiin kehittää, jotta yritys kykenisi kehittämään toimintojaan, lisäämään työntekijöiden viihtyvyyttä ja ammattitaitoa sekä vastaamaan kilpailuun. Tutkimus on laadullinen case- tutkimus. Tutkimusmenetelmänä on käytetty teemahaastatteluja, joita tehtiin case- yrityksen eri henkilöstöryhmien edustajille. Tutkimus tehtiin Oy Gust. Raninille. Henkilöstön mielestä parhaita tapoja kehittää osaamista ovat erilaiset yrityksen ulkopuolisen ammattilaisen pitämät läheisesti työtehtäviin liittyvät kurssit joilta saa mukaan kurssimateriaalia. Työntekijät haluavat itse valita ne kurssit joihin he osallistuvat. Toinen suosittu kehittämistapa on työn- tai tehtävien kierto. Suurimmaksi ongelmakohdaksi koettiin puutteellinen tiedonkulku sekä esimiehiltä alaisille että työntekijöiden välillä. Muita kehittämiskohteita ovat atk- taidot sekä kielitaito. Henkilöstön suhtautuminen kaikenlaisiin kehittämistoimiin on positiivista ja henkilöstö on halukas kehittämään työtehtäviään.
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Tutkimuksen päätavoitteena oli atk-avusteisen tilintarkastuksen käytön tutkiminen. Tutkimus jakaantuu teoreettiseen ja empiiriseen osaan. Teoriaosuudessa käydään läpi tilintarkastusprosessia ja esitellään tietokoneavusteisen tilintarkastuksen työvälineitä sekä arvioidaan kirjallisuuden ja muun lähdeaineiston perusteella atk:n tuottamia hyötyjä ja aiheuttamia riskejä. Empiriaosuudessa tutkittiin tilintarkastajille suunnatun kyselytutkimuksen avulla miten laajaa atk:n hyväksikäyttö on tilintarkastusmaailmassa ja miten tilintarkastajat itse näkevät sen tuomat hyödyt ja haitat sekä atk-avusteisen tilintarkastuksen kehittymisen lähitulevaisuudessa. Tutkimustuloksia verrataan aikaisemmin samasta aihepiiristä tehtyjen tutkimusten tuloksiin. Tutkimustuloksia verrattaessa käy ilmi, että tietokoneen käyttö ja hyödyntäminen tilintarkastustyössä on selvästi lisääntynyt. On huomattava, että atk:n mukaantulo tilintarkastustoimintaan tuo mukanaan ongelmia, jotka tulee tiedostaa, mutta atk:n tuottamien lisäetujen määrä on niin huomattava, että tulevaisuudessa tehokas tilintarkastustyö ei onnistu ilman atk-avusteisia menetelmiä.
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It is often assumed that total head losses in a sand filter are solely due to the filtration media and that there are analytical solutions, such as the Ergun equation, to compute them. However, total head losses are also due to auxiliary elements (inlet and outlet pipes and filter nozzles), which produce undesirable head losses because they increase energy requirements without contributing to the filtration process. In this study, ANSYS Fluent version 6.3, a commercial computational fluid dynamics (CFD) software program, was used to compute head losses in different parts of a sand filter. Six different numerical filter models of varying complexities were used to understand the hydraulic behavior of the several filter elements and their importance in total head losses. The simulation results show that 84.6% of these were caused by the sand bed and 15.4% were due to auxiliary elements (4.4% in the outlet and inlet pipes, and 11.0% in the perforated plate and nozzles). Simulation results with different models show the important role of the nozzles in the hydraulic behavior of the sand filter. The relationship between the passing area through the nozzles and the passing area through the perforated plate is an important design parameter for the reduction of total head losses. A reduced relationship caused by nozzle clogging would disproportionately increase the total head losses in the sand filter
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One of the techniques used to detect faults in dynamic systems is analytical redundancy. An important difficulty in applying this technique to real systems is dealing with the uncertainties associated with the system itself and with the measurements. In this paper, this uncertainty is taken into account by the use of intervals for the parameters of the model and for the measurements. The method that is proposed in this paper checks the consistency between the system's behavior, obtained from the measurements, and the model's behavior; if they are inconsistent, then there is a fault. The problem of detecting faults is stated as a quantified real constraint satisfaction problem, which can be solved using the modal interval analysis (MIA). MIA is used because it provides powerful tools to extend the calculations over real functions to intervals. To improve the results of the detection of the faults, the simultaneous use of several sliding time windows is proposed. The result of implementing this method is semiqualitative tracking (SQualTrack), a fault-detection tool that is robust in the sense that it does not generate false alarms, i.e., if there are false alarms, they indicate either that the interval model does not represent the system adequately or that the interval measurements do not represent the true values of the variables adequately. SQualTrack is currently being used to detect faults in real processes. Some of these applications using real data have been developed within the European project advanced decision support system for chemical/petrochemical manufacturing processes and are also described in this paper
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The objective of this paper was to show the potential additional insight that result from adding greenhouse gas (GHG) emissions to plant performance evaluation criteria, such as effluent quality (EQI) and operational cost (OCI) indices, when evaluating (plant-wide) control/operational strategies in wastewater treatment plants (WWTPs). The proposed GHG evaluation is based on a set of comprehensive dynamic models that estimate the most significant potential on-site and off-site sources of CO2, CH4 and N2O. The study calculates and discusses the changes in EQI, OCI and the emission of GHGs as a consequence of varying the following four process variables: (i) the set point of aeration control in the activated sludge section; (ii) the removal efficiency of total suspended solids (TSS) in the primary clarifier; (iii) the temperature in the anaerobic digester; and (iv) the control of the flow of anaerobic digester supernatants coming from sludge treatment. Based upon the assumptions built into the model structures, simulation results highlight the potential undesirable effects of increased GHG production when carrying out local energy optimization of the aeration system in the activated sludge section and energy recovery from the AD. Although off-site CO2 emissions may decrease, the effect is counterbalanced by increased N2O emissions, especially since N2O has a 300-fold stronger greenhouse effect than CO2. The reported results emphasize the importance and usefulness of using multiple evaluation criteria to compare and evaluate (plant-wide) control strategies in a WWTP for more informed operational decision making
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L’Slot, conegut per tots amb el nom d’Scalextric, s’ha implantat com a una forma d’oci habitual, la pràctica del qual no queda restringida als més petits, sinó que cada vegada crea més afició entre els grans. El fet que l’Slot s’hagi extès entre els adults n’ha revolucionat la pràctica. L’entrada al mercat de l’Slot de gent adulta, i amb poder adquisitiu molt superior als adolescents, ha provocat que les marques especialitzades vagin evolucionant els seus productes cada vegada més. Totes les marques s’han vist obligades a desenvolupar vehicles més competitius i alhora treure al mercat accessoris que augmentin la realitat del joc. Una de les necessitats que s’ha creat és la de competir entre jugadors. Aquesta competició tan pot ser en forma de carrera entre diversos participants, com de forma individual, cronometrant el temps de cada participant en un circuit. L’objectiu principal del projecte és crear un sistema capaç de realitzar cronometratges en temps real mitjançant sensors digitals ja existents en el mercat de l’Slot i poder controlar i visualitzar la informació des d’un PC. Per a poder captar els senyals dels sensors s’ha utilitzat un sistema microcontrolat, que garanteix gran velocitat d’adquisició, processament de dades i transmissió. La comunicació del Microcontrolador amb el PC s’ha realizat mitjançant el bus USB. El PC serà el controlador del sistema i donarà les ordres al Microcontrolador, podent així tenir control total sobre el funcionament del programa. També serà el PC el que tractarà els crocometratges enregistrats i els mostrarà per pantalla
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El reconeixement dels gestos de la mà (HGR, Hand Gesture Recognition) és actualment un camp important de recerca degut a la varietat de situacions en les quals és necessari comunicar-se mitjançant signes, com pot ser la comunicació entre persones que utilitzen la llengua de signes i les que no. En aquest projecte es presenta un mètode de reconeixement de gestos de la mà a temps real utilitzant el sensor Kinect per Microsoft Xbox, implementat en un entorn Linux (Ubuntu) amb llenguatge de programació Python i utilitzant la llibreria de visió artifical OpenCV per a processar les dades sobre un ordinador portàtil convencional. Gràcies a la capacitat del sensor Kinect de capturar dades de profunditat d’una escena es poden determinar les posicions i trajectòries dels objectes en 3 dimensions, el que implica poder realitzar una anàlisi complerta a temps real d’una imatge o d’una seqüencia d’imatges. El procediment de reconeixement que es planteja es basa en la segmentació de la imatge per poder treballar únicament amb la mà, en la detecció dels contorns, per després obtenir l’envolupant convexa i els defectes convexos, que finalment han de servir per determinar el nombre de dits i concloure en la interpretació del gest; el resultat final és la transcripció del seu significat en una finestra que serveix d’interfície amb l’interlocutor. L’aplicació permet reconèixer els números del 0 al 5, ja que s’analitza únicament una mà, alguns gestos populars i algunes de les lletres de l’alfabet dactilològic de la llengua de signes catalana. El projecte és doncs, la porta d’entrada al camp del reconeixement de gestos i la base d’un futur sistema de reconeixement de la llengua de signes capaç de transcriure tant els signes dinàmics com l’alfabet dactilològic.
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Crystallization is a purification method used to obtain crystalline product of a certain crystal size. It is one of the oldest industrial unit processes and commonly used in modern industry due to its good purification capability from rather impure solutions with reasonably low energy consumption. However, the process is extremely challenging to model and control because it involves inhomogeneous mixing and many simultaneous phenomena such as nucleation, crystal growth and agglomeration. All these phenomena are dependent on supersaturation, i.e. the difference between actual liquid phase concentration and solubility. Homogeneous mass and heat transfer in the crystallizer would greatly simplify modelling and control of crystallization processes, such conditions are, however, not the reality, especially in industrial scale processes. Consequently, the hydrodynamics of crystallizers, i.e. the combination of mixing, feed and product removal flows, and recycling of the suspension, needs to be thoroughly investigated. Understanding of hydrodynamics is important in crystallization, especially inlargerscale equipment where uniform flow conditions are difficult to attain. It is also important to understand different size scales of mixing; micro-, meso- and macromixing. Fast processes, like nucleation and chemical reactions, are typically highly dependent on micro- and mesomixing but macromixing, which equalizes the concentrations of all the species within the entire crystallizer, cannot be disregarded. This study investigates the influence of hydrodynamics on crystallization processes. Modelling of crystallizers with the mixed suspension mixed product removal (MSMPR) theory (ideal mixing), computational fluid dynamics (CFD), and a compartmental multiblock model is compared. The importance of proper verification of CFD and multiblock models is demonstrated. In addition, the influence of different hydrodynamic conditions on reactive crystallization process control is studied. Finally, the effect of extreme local supersaturation is studied using power ultrasound to initiate nucleation. The present work shows that mixing and chemical feeding conditions clearly affect induction time and cluster formation, nucleation, growth kinetics, and agglomeration. Consequently, the properties of crystalline end products, e.g. crystal size and crystal habit, can be influenced by management of mixing and feeding conditions. Impurities may have varying impacts on crystallization processes. As an example, manganese ions were shown to replace magnesium ions in the crystal lattice of magnesium sulphate heptahydrate, increasing the crystal growth rate significantly, whereas sodium ions showed no interaction at all. Modelling of continuous crystallization based on MSMPR theory showed that the model is feasible in a small laboratoryscale crystallizer, whereas in larger pilot- and industrial-scale crystallizers hydrodynamic effects should be taken into account. For that reason, CFD and multiblock modelling are shown to be effective tools for modelling crystallization with inhomogeneous mixing. The present work shows also that selection of the measurement point, or points in the case of multiprobe systems, is crucial when process analytical technology (PAT) is used to control larger scale crystallization. The thesis concludes by describing how control of local supersaturation by highly localized ultrasound was successfully applied to induce nucleation and to control polymorphism in reactive crystallization of L-glutamic acid.
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Diplomityössä toteutettiin varastonhallintajärjestelmän hankinta prosessoimalla tietoa hallitusti varastonhallinnan kehittämiseksi. Kvalitatiivinen tapaustutkimus tehtiin tietojohtamisen näkökulmasta käyttäjälähtöisen C-CEI –menetelmän avulla haastattelemalla ja havainnoimalla tapausyritystä. Haastatteluja tehtiin 10 kertaa. Tutkimuksessa kartoitettiin ja kilpailutettiin kotimaiset järjestelmätoimittajat, joita löydettiin 15. Näistä toimittajista 6 vastasi vaatimuksia ja teki tarjouksen. Tutkimuksen lopuksi tehtiin järjestelmän hankintaehdotus. Tutkimuksen teoreettinen viitekehys koostui tietojohtamisesta, varastonhallinnasta ja ohjelmistotuotannosta. Tutkimuksessa pääkysymyksenä esitettiin miten tietojohtamisen avulla voidaan tukea varastonhallintajärjestelmän hankintaa. Tutkimuksessa havaittiin, että tietojärjestelmän hankinta varastonhallinnan osalta on moniulotteinen liiketoiminnan kehittämistehtävä. Tietojärjestelmähankinta tulisi siten nähdä liiketoimintaa eteenpäin vievänä mahdollisuutena. Lisäksi loppukäyttäjän vaatimusten kartoittamiseen tulisi sitoutua huolella ja suhtautua kriittisesti eri järjestelmävaihtoehtoihin. Vaatimusmäärittelyn asettaminen ja vaatimusten priorisoiminen ovat haasteellisia tehtäviä. Tiedon hallinnan aikana saatiin selville, että loppukäyttäjän vaatimusten mukainen tarjouspyyntö edesauttaa ensinnäkin tarjousten tekemistä mutta myös niiden prosessointia ja analysointia. Vain oikealla tiedolla ja sen yhteyksillä on merkitystä. Tutkimuksen perusteella tietojärjestelmän hankinta suositellaan tehtäväksi hallitsemalla tietoa systemaattisesti erityisesti sen alkuvaiheen aikana. Tietojohtaminen virtaviivaistaa hankkeen etenemistä ja aikataulutusta, vähentää loppukäyttäjän kustannuksia tehokkaalla kilpailutusmenettelyllä, edistää kilpailukykyä ja luo hyvän lähtökohdan koko tietojärjestelmän hankinnan läpiviemiselle ja yhteistyö-suhteen rakentumiselle kauppakumppaneiden välille.
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Delays in the justice system have been undermining the functioning and performance of the court system all over the world for decades. Despite the widespread concern about delays, the solutions have not kept up with the growth of the problem. The delay problem existing in the justice courts processes is a good example of the growing need and pressure in professional public organizations to start improving their business process performance.This study analyses the possibilities and challenges of process improvement in professional public organizations. The study is based on experiences gained in two longitudinal action research improvement projects conducted in two separate Finnish law instances; in the Helsinki Court of Appeal and in the Insurance Court. The thesis has two objectives. First objective is to study what kinds of factors in court system operations cause delays and unmanageable backlogs and how to reduce and prevent delays. Based on the lessons learned from the case projects the objective is to give new insights on the critical factors of process improvement conducted in professional public organizations. Four main areas and factors behind the delay problem is identified: 1) goal setting and performance measurement practices, 2) the process control system, 3) production and capacity planning procedures, and 4) process roles and responsibilities. The appropriate improvement solutions include tools to enhance project planning and scheduling and monitoring the agreed time-frames for different phases of the handling process and pending inventory. The study introduces the identified critical factors in different phases of process improvement work carried out in professional public organizations, the ways the critical factors can be incorporated to the different stages of the projects, and discusses the role of external facilitator in assisting process improvement work and in enhancing ownership towards the solutions and improvement. The study highlights the need to concentrate on the critical factors aiming to get the employees to challenge their existing ways of conducting work, analyze their own processes, and create procedures for diffusing the process improvement culture instead of merely concentrating of finding tools, techniques, and solutions appropriate for applications from the manufacturing sector
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The irrigation management based on the monitoring of the soil water content allows for the minimization of the amount of water applied, making its use more efficient. Taking into account these aspects, in this work, a sensor for measuring the soil water content was developed to allow real time automation of irrigation systems. This way, problems affecting crop yielding such as irregularities in the time to turn on or turn off the pump, and excess or deficit of water can be solved. To develop the sensors were used stainless steel rods, resin, and insulating varnish. The sensors measuring circuit was based on a microcontroller, which gives its output signal in the digital format. The sensors were calibrated using soil of the type Quartzarenic Neosoil. A third order polynomial model was fitted to the experimental data between the values of water content corresponding to the field capacity and the wilting point to correlate the soil water content obtained by the oven standard method with those measured by the electronic circuit, with a coefficient of determination of 93.17%, and an accuracy in the measures of ±0.010 kg kg-1. Based on the results, it was concluded that the sensor and its implemented measuring circuit can be used in the automation process of irrigation systems.