938 resultados para Inspection points
Resumo:
Tämän työn tarkoituksena oli kirjallisuustutkimuksen ja aikaisemmin valmistuneiden putkitöiden avulla määritellä ohjeistus viranomaisvaatimusten mukaisten putkistojen valmistamista varten. Tarkasteluesimerkkeinä oli kolme erilaista putkityötä. Näiden seikkojen kautta vahvistui käsitys ohjeistuksen tarpeellisuudesta, mikä oli jo työn tavoitteissa yhtenä päämääränä. Aluksi selvitetään lainsäädäntöä ja sitä, mitä laki vaati putkistoilta. Seuraavaksi tarkastellaan standardeja valmistuksen näkökannalta ja siitä seurauksena syntyi valmistusohje. Sen jälkeen käsitellään putkistoista tehtyjä dokumentaatioita, joita oli jo valmistettu lainsäädännön vaihtumisen jälkeen. Kokoamalla em. tutkimukset on saatu aikaiseksi ohjeistus, jota seuraamallavalmistaja voi valmistaa putkiston, joka täyttää lain ja asetuksen vaatimuksen.Tässä työssä ei tarkasteltu tuotannon tehostamista asennusolosuhteissa eikä laatutavoitteita. Tuloksena syntyi ohjeistus, joka huomioi erilaiset lait ja asetukset, kun kyseessä on putkistojen hankinta, asennus tai korjaus putkistoissa, joita viranomaismääräykset ja asetukset valvovat. Putkistojen asennuksen ja tuotannon tehostaminen sekä automatisoinnin tai mekanisoinnin käyttö hitsauksessa ja hitsauksen laadun varmistus voivat olla tämän diplomityön jälkeisiä tutkimusaiheita.
Resumo:
This thesis considers nondestructive optical methods for metal surface and subsurface inspection. The main purpose of this thesis was to study some optical methods in order to find out their applicability to industrial measurements. In laboratory testing the simplest light scattering approach, measurement of specular reflectance, was used for surface roughness evaluation. Surface roughness, curvature and finishing process of metal sheets were determined by specular reflectance measurements. Using a fixed angleof incidence, the specular reflectance method might be automated for industrialinspection. For defect detection holographic interferometry and thermography were compared. Using either holographic interferometry or thermography, relativelysmall-size defects in metal plates could be revealed. Holographic techniques have some limitations for industrial measurements. On the contrary, thermography has excellent prospects for on-line inspection, especially with scanning techniques.
Resumo:
Given the cost constraints of the European health-care systems, criteria are needed to decide which genetic services to fund from the public budgets, if not all can be covered. To ensure that high-priority services are available equitably within and across the European countries, a shared set of prioritization criteria would be desirable. A decision process following the accountability for reasonableness framework was undertaken, including a multidisciplinary EuroGentest/PPPC-ESHG workshop to develop shared prioritization criteria. Resources are currently too limited to fund all the beneficial genetic testing services available in the next decade. Ethically and economically reflected prioritization criteria are needed. Prioritization should be based on considerations of medical benefit, health need and costs. Medical benefit includes evidence of benefit in terms of clinical benefit, benefit of information for important life decisions, benefit for other people apart from the person tested and the patient-specific likelihood of being affected by the condition tested for. It may be subject to a finite time window. Health need includes the severity of the condition tested for and its progression at the time of testing. Further discussion and better evidence is needed before clearly defined recommendations can be made or a prioritization algorithm proposed. To our knowledge, this is the first time a clinical society has initiated a decision process about health-care prioritization on a European level, following the principles of accountability for reasonableness. We provide points to consider to stimulate this debate across the EU and to serve as a reference for improving patient management.
Resumo:
During the last decades the advance in knowledge of myofascial pain has been constant in the medical and dental community. However, although several aspects have been clarified in relation to its epidemiology, clinical characteristics and etiopathogenesis, many uncertainties remain. Many clinical conditions are included in the differential diagnosis of myofascial pain associated to trigger points. A good anamnesis and clinical exploration is thus required in order to ensure correct diagnosis and treatment. Among the numerous treatments used in application to trigger points, the spray-and-stretch technique and direct injection targeted to such trigger points have been found to be the most effective options. In chronic cases, psychosocial intervention is required, due to the high incidence of mood disorders and/or anxiety observed in these patients, who in turn present a poorer prognosis. This underscores the importance of early diagnosis and treatment.
Resumo:
Seventy-five percent of breast cancers are estrogen receptor α positive (ER(+)). Research on these tumors is hampered by lack of adequate in vivo models; cell line xenografts require non-physiological hormone supplements, and patient-derived xenografts (PDXs) are hard to establish. We show that the traditional grafting of ER(+) tumor cells into mammary fat pads induces TGFβ/SLUG signaling and basal differentiation when they require low SLUG levels to grow in vivo. Grafting into the milk ducts suppresses SLUG; ER(+) tumor cells develop, like their clinical counterparts, in the presence of physiological hormone levels. Intraductal ER(+) PDXs are retransplantable, predictive, and appear genomically stable. The model provides opportunities for translational research and the study of physiologically relevant hormone action in breast carcinogenesis.
Resumo:
The extension of traditional data mining methods to time series has been effectively applied to a wide range of domains such as finance, econometrics, biology, security, and medicine. Many existing mining methods deal with the task of change points detection, but very few provide a flexible approach. Querying specific change points with linguistic variables is particularly useful in crime analysis, where intuitive, understandable, and appropriate detection of changes can significantly improve the allocation of resources for timely and concise operations. In this paper, we propose an on-line method for detecting and querying change points in crime-related time series with the use of a meaningful representation and a fuzzy inference system. Change points detection is based on a shape space representation, and linguistic terms describing geometric properties of the change points are used to express queries, offering the advantage of intuitiveness and flexibility. An empirical evaluation is first conducted on a crime data set to confirm the validity of the proposed method and then on a financial data set to test its general applicability. A comparison to a similar change-point detection algorithm and a sensitivity analysis are also conducted. Results show that the method is able to accurately detect change points at very low computational costs. More broadly, the detection of specific change points within time series of virtually any domain is made more intuitive and more understandable, even for experts not related to data mining.
Resumo:
Coverage Path Planning (CPP) is the task of determining a path that passes over all points of an area or volume of interest while avoiding obstacles. This task is integral to many robotic applications, such as vacuum cleaning robots, painter robots, autonomous underwater vehicles creating image mosaics, demining robots, lawn mowers, automated harvesters, window cleaners and inspection of complex structures, just to name a few. A considerable body of research has addressed the CPP problem. However, no updated surveys on CPP reflecting recent advances in the field have been presented in the past ten years. In this paper, we present a review of the most successful CPP methods, focusing on the achievements made in the past decade. Furthermore, we discuss reported field applications of the described CPP methods. This work aims to become a starting point for researchers who are initiating their endeavors in CPP. Likewise, this work aims to present a comprehensive review of the recent breakthroughs in the field, providing links to the most interesting and successful works
Resumo:
Fuzzy subsets and fuzzy subgroups are basic concepts in fuzzy mathematics. We shall concentrate on fuzzy subgroups dealing with some of their algebraic, topological and complex analytical properties. Explorations are theoretical belonging to pure mathematics. One of our ideas is to show how widely fuzzy subgroups can be used in mathematics, which brings out the wealth of this concept. In complex analysis we focus on Möbius transformations, combining them with fuzzy subgroups in the algebraic and topological sense. We also survey MV spaces with or without a link to fuzzy subgroups. Spectral space is known in MV algebra. We are interested in its topological properties in MV-semilinear space. Later on, we shall study MV algebras in connection with Riemann surfaces. In fact, the Riemann surface as a concept belongs to complex analysis. On the other hand, Möbius transformations form a part of the theory of Riemann surfaces. In general, this work gives a good understanding how it is possible to fit together different fields of mathematics.
Resumo:
This dissertation "Identification of turning points in the research on titanium dioxide production and application" aims at detecting in scientific literatures emerging trends and sudden changes in titanium dioxide production and application. These key changes are then studied to determine its transient patterns and its effect on the research on titanium dioxide production and application The source of information is from bibliographic data which discussed titanium dioxide production and application. These bibliographic data where obtained from ISI Web of Knowledge and then formed into a network of clusters by applying software called Citespace.
Resumo:
La Direcció General d’Indústria té com a principal finalitat el control de les instal•lacions i de diferents activitats de l’àmbit industrial; exerceix aquesta funció mitjançant la tramitació de documentacions tècniques i la inspecció. Com tota Administració Pública, es troba en un entorn molt dinàmic, on només les empreses més competitives poden subsistir i els ciutadans tenen noves necessitats molt diferents de les de fa un temps. Ambdós, empreses i ciutadans, exigeixen serveis de qualitat a un sector públic que no té altra alternativa que caminar en la mateixa direcció. L’objectiu d’aquest treball és planificar una sèrie d’accions estratègiques que permetran la millora dels serveis oferts a fi de complir amb les expectatives de la ciutadania. S’ha realitzat una anàlisi interna i de l’entorn de l’organització, el resultat de la qual ha estat la detecció d’una sèrie de punts de millora. A continuació s’ha definit una pla operatiu de qualitat, emmarcat dins del segon Pla Estratègic de Qualitat del Govern de les Illes Balears, amb tres propostes d’actuació: la separació de funcions, la tramitació ràpida d’expedients i el pla de formació. Les propostes esmentades constitueixen les bases d’una nova unitat orgànica (Oficina de Tramitació Ràpida), el model organitzatiu de la qual queda definit en els diferents apartats del treball. Igualment, s’hi descriu el procés de posada en funcionament dels distints procediments que es vagin adaptant al nou sistema i la planificació dels treballs a dur a terme, que seguiran el cicle de la qualitat de Deming, és a dir, planificar, fer, verificar i actuar.