Safety aspects influencing emergency response on offshore installations and the influence of economic, legislative, safety management and safety engineering factors on the safety of the workforce are reviewed. The main objective of developing optimum strategies for emergency response is to reduce the risk to personnel by reducing the likelihood of precipitate or inappropriate decisions being made. This involves a judicious balance of significant predictive factors, namely: the estimated risk to personnel whilst remaining onboard and during evacuation, escape, recovery and rescue; and the estimated time required to gain control of an undesired event (or reach untenable conditions) and for evacuation and escape. The research focuses on the provision of significant information to the Offshore Installation Manager (OIM). A methodology is presented to assist in the development of optimum strategies for emergency response and in the design of a computer-based Emergency Response Information (ERI) system for providing the information. A fiamework is presented to assist in: identifying events, sequences and combinations of events and their potential consequences; and defining event type, severity and priority for emergency response. Typical resources and arrangements for responding to emergencies are reviewed and their adequacy for the effective employment of the ERI system evaluated. Typical information required at applicable activity stages is identified for defined areas of emergency response for events of varying degrees of severity. A statement of sensible and feasible' requirements of a typical ERI system is presented. A critical evaluation is presented of the feasibility of the design, manufacture and operation of the ERI system to provide the information and achieve specified requirements, namely: performance standards (functionality, reliability and survivability); and ergonomic and human resources requirements. The research concludes by examining ways in which the philosophy described in the thesis can be implemented in practice. A methodology for presenting the information is described.

We have attempted adaptive optics (AO) imaging of planets around nearby stars in the L' and M bands, using the Clio instrument on the MMT. The MMT AO system, with its deformable secondary mirror, offers uniquely low background AO-corrected images in these bands. This allowed us to explore a wavelength regime that has not been well utilized in searches for extrasolar planets, but offers some advantages over the more commonly used shorter-wavelength H band regime. We have taken deep L' and M band images of the interesting debris disk stars Vega and ϵ Eri. Our observations of ϵ Eri attain better sensitivity to low mass planets within 3 arcseconds of the star than any other AO observations to date. At 1.7 arcsec, the maximum separation of the known planet ϵ Eri b, our M band sensitivity corresponds to objects only 9-16 times brighter than the predicted brightness of this planet. M is by far the most promising band for directly imaging this planet for the first time, though Clio would require a multi-night integration. We have carried out a survey of 50 nearby stars, using mostly the L' band. The survey objective was to determine whether power law fits to the statistics of planet mass m and orbital semimajor axis a from radial velocity (RV) surveys apply when extrapolated to orbital radii beyond the outer limits of RV sensitivity. Given dN/dm ~ m^{-1.44}, our survey null result rules out dN/da ~ a^{-0.2} extending beyond 155 AU, or dN/da constant extending beyond 70 AU, at the 95% confidence level. We have not placed as tight constraints on the planet distributions as the best H band surveys. However, we have probed older planet populations and by using a different wavelength regime have helped diversify results against model uncertainties. We have developed careful and well-tested observing, image processing, sensitivity analysis, and source detection methods, and helped advance L' and M band AO astronomy. These wavelengths will become increasingly important with the advent of new giant telescopes sensitive to interesting, low-temperature planets with red H-L' and H-M colors.

No description available.

La presente tesis doctoral se centra en la preparación de zeolitas de poro pequeño (3.5-4 Å), en concreto, aquellas cuya estructura presenta además cavidades grandes. Este tipo de materiales ha despertado un enorme interés en los últimos años debido al potencial que presentan como catalizadores en procesos de relevancia industrial y medioambiental, tales como el proceso de transformación de metanol a olefinas (MTO) o la reducción catalítica selectiva (RCS) de NOx. Por ello, existe un interés creciente en la preparación de nuevas estructuras de poro pequeño y en la mejora de las propiedades físico-químicas o de los métodos de preparación de las zeolitas ya existentes. Esto se debe, a que en ocasiones, la aplicación industrial de estas zeolitas se ve limitada, tanto por las condiciones de síntesis, como por el coste del agente director de estructura orgánico (ADEO) empleado en la preparación. En este sentido, el desarrollo de nuevas estrategias de síntesis podría dar lugar a la obtención de algunas estructuras de poro pequeño con propiedades físico-químicas mejoradas (relación Si/Al, acidez, tamaño de cristal, entre otras), así como a una reducción en los costes de preparación eliminando el uso de ADEOs o sustituyéndolos por moléculas de menor coste. Todo ello favorecería la posible aplicación industrial de dichas zeolitas de poro pequeño. La primera parte de la tesis se centra en la optimización del proceso de síntesis de dos estructuras zeolíticas de poro pequeño, CHA y AEI, con elevado contenido en sílice y buenos rendimientos de síntesis. Para ello, se desarrolla una nueva metodología de síntesis que combina el uso de agentes directores de estructura orgánicos con el uso de una zeolita cristalina como única fuente de Si y Al. Mediante dicho procedimiento se obtienen ambas zeolitas con unas propiedades físico-químicas (tamaño de cristal y acidez) óptimas para su empleo como catalizadores del proceso MTO. En la segunda parte de la tesis se preparan diferentes zeolitas de poro pequeño (CHA, AEI, AFX y ERI) que contienen cobre o hierro como centros activos aislados. Para la introducción de especies metálicas en su interior, se emplean tanto métodos convencionales de intercambio iónico como métodos de síntesis directa, que eliminan la necesidad de tratamientos post-síntesis, además de permitir obtener una dispersión más homogénea en los cristales de la zeolita. La actividad catalítica y estabilidad hidrotermal de estas zeolitas, se evalúa para la RCS de NOx. / The present doctoral thesis focuses on the preparation of small-pore zeolites (3.5-4 Å), preferentially those also containing large cavities. This type of materials has attracted great technological interest during the last years due to their recent commercial application as catalysts in relevant industrial and environmental processes, such as the transformation of methanol into light olefins (MTO), or the selective catalytic reduction (RSC) of NOx. Therefore, there is an increasing interest in the preparation of new small pore structures and/or the improvement of the physico-chemical properties or the synthesis protocols of the zeolites currently in use. In fact, the industrial application of a particular zeolite could be limited by the high costs associated to its preparation, and in particular, to the high costs associated to the organic structure directing agent (OSDA) employed. In this sense, the discovery and development of new synthetic strategies could not only favor the crystallization of novel small-pore zeolites with improved physico-chemical properties (i.e. Si/Al ratio, crystal size, among others), but also optimizing the production costs, avoiding the use of expensive OSDAs or, at least, substituting those by less-expensive organic molecules. These features could encourage the potential commercialization of such novel small pore zeolites as competitive catalysts for relevant industrial processes. In the first part of this thesis, the synthesis protocols of two different high-silica small pore zeolites, CHA and AEI, have been intensively evaluated in order to develop a new procedure to direct the crystallization of these two zeolites with excellent solid yields. It has been found that the combination of a particular OSDA with a crystalline zeolite as the sole Si and Al sources, as FAU, allows the obtention of both zeolites with optimal physico-chemical properties (crystal size and acidity) for its application as efficient catalysts for the MTO process. In the second part of this thesis, different small-pore zeolites (CHA, AEI, AFX y ERI) containing copper or iron as isolated active catalytic sites, have been prepared. To introduce these metallic species within the zeolite crystals, either conventional ion-exchange methods or direct 'one-pot' synthetic methods have been employed. Interestingly, the use of 'one-pot' synthesis methods not only eliminates the need for post-synthetic ion-exchange treatments, but also allows obtaining better metal dispersions along the zeolite crystals. The catalytic activity and hydrothermal stability of such zeolites has been evaluated for the SCR of NOx. / Aquesta tesi doctoral es centra en la preparació de zeolites de por menut (3.5-4 Å), i en particular, aquelles amb una estructura que presenta, a més, grans cavitats. Aquest tipus de materials han despertat un gran interès als últims anys, degut al potencial que presenten com a catalitzadors eficients en processos rellevants per la indústria i el medi ambient, com son el processos de transformació de metanol a olefines (MTO) o la reducció catalítica selectiva (RCS) de NOx. Per aquest motiu, existeix un interès creixent tant en la preparació de noves estructures de por menut, com en la millora de les propietats fisico-químiques o dels mètodes de preparació de les zeolites ja existents. Aquest motiu es deu a que en ocasions, l'aplicació industrial d'aquestes zeolites, es pot veure limitada per els costs associats a la seua preparació, en particular de l'agent director d'estructura orgànic (ADEO) emprat. En aquest sentit, el desenvolupament de noves estratègies de síntesi podria donar lloc a l'obtenció d'algunes estructures de por menut amb propietats físico-químiques millorades (relació Si/Al, acidesa, tamany de cristall, entre altres), així com a una reducció dels costos de preparació, eliminant l'ús de ADEOs o substituint-los per molècules de menor cost. Tot això, podria afavorir la possible aplicació industrial d'aquestes noves zeolites de por menut. La primera part de la tesi es centra en l'optimització del procés de síntesi de dos estructures zeolítiques de por menut, CHA i AEI, amb un elevat contingut de sílice i amb bons rendiments de síntesi. Per això, s'ha desenvolupat una nova metodologia de síntesi que combina l'ús d'agents directors d'estructura orgànics (ADEO) amb una zeolita cristal¿lina com a única font de Si i Al. Mitjançant aquest procediment, s'han pogut obtenir els dos materials amb unes propietats físico-químiques (tamany de cristall i acidesa) òptimes per al seu ús com a catalitzadors en el procés MTO. En la segona part de la tesi s'han preparat diverses zeolites de por menut (CHA, AEI, AFX I ERI), amb àtoms de coure o ferro com a centres catalítics aïllats. Per a la introducció de les espècies metàl¿liques al seu interior, s'han utilitzat tant mètodes convencionals d'intercanvi iònic com mètodes de síntesi directa. En particular, els mètodes directes eliminen la necessitat de introduir diferents tractament post-síntesi, a més de permetre una dispersió més homogènia del metall als cristalls de la zeolita. L'activitat catalítica i l'estabilitat hidrotermal d'aquestes zeolites s'ha avaluat per a la RCS de NOx. / Martín García, N. (2017). PREPARACIÓN DE ZEOLITAS DE PORO PEQUEÑO CON CONTROL DE SUS PROPIEDADES FÍSICO-QUÍMICAS PARA SU APLICACIÓN EN CATÁLISIS [Tesis doctoral]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/94628

Made available in DSpace on 2014-12-17T15:12:13Z (GMT). No. of bitstreams: 1 IrisFS.pdf: 350369 bytes, checksum: 48d8d7ef4da71e5e1de0f74ded139a84 (MD5) Previous issue date: 2006-07-07 / This thesis aims at studying the concept of participation according to John Scotus Eriugena. The development of our research is based on an identification of Eriugena s sources, investigating the concept of participation since Dyonisus and the Greek Christian fathers, until the Periphyseon. To Eri?gena, the terms that are brought together in participation God, causes, and effects are, while everything that falls out of participation is not. Leaning on his understanding of the relation between cause and effect, according to which the effects participate in the cause and somehow are contained in it, he told us that all things and beings subsist eternally in God, and that God can signify Himself through the created things and beings. To Eriugena, creatures exist because they participate in the Divine Nature and receive their being from It, for nothing truly exists outside of It. / A presente disserta??o tem como objetivo o estudo do conceito de participa??o em Jo?o Escoto Eri?gena. O desenvolvimento da pesquisa d?-se a partir da identifica??o das fontes do irland?s, investigando o referido conceito a partir de Dion?sio e os padres crist?os gregos, at? chegar ao Periphyseon. Para Eri?gena os termos que se relacionam na participa??o - Deus, causas e efeitos - s?o, enquanto que aquilo que n?o mant?m nenhuma rela??o de participa??o n?o ?. Apoiando-se em sua concep??o da rela??o entre causa e efeito, segundo a qual os efeitos participam da causa e se cont?m nesta de alguma maneira, nos disse que todas as coisas subsistem eternamente em Deus, e que Deus se pode significar pelas coisas criadas. Eri?gena parte do princ?pio que as criaturas existem porque participam da Natureza Divina e dela recebem seu ser, pois fora dela nada existe verdadeiramente.

Abstract: The purpose of this study was to examine the Swedish industry- and craftmanship trade, specifically the relationship between effort and reward and how it affects the meaningfulness during labour hours. Also, what are the possible effects on production efficiency as a whole? Discussed and analyzed through empirics and previous research. 38 workers filled out a survey and two interviews were conducted to get a more analytic depth to the data. The results showed that there is little to no reward for high effort during labour hours on the evaluated workplaces, combined with low commitment and meaningfullness. My conclusions are that more ways of effort-based rewards would likely have a positive effect on meaningfulness and thereby the production as a whole. I also show that the theses of Karl Marx are still plausible and relevant in modern day industrial- and craftsmanship trades in capitalist countries.

Cheferna inom vård och omsorg i offentliga organisationer har hög arbetsbelastning och ett komplext uppdrag. Ofta finns rutiner för det systematiska arbetsmiljöarbetet, men de är bristfälliga och används inte. Syftet var att undersöka hur första linjens chefer i primärvården upplevde sin psykosociala arbetsmiljö samt deras förutsättningar att bedriva systematiskt arbetsmiljöarbete. En tvärsnittsstudie där samtliga 126 första linjens chefer från fyra landsting i primärvården deltagit, med svarsfrekvens 51%. I studien har enkät QPS Nordic 34+ använts samt 10 kompletterande frågor om systematiskt arbetsmiljöarbete. Analys delvis med referensdata och Pearsons korrelation. Cheferna hade en hög arbetsbelastning och arbetet tenderade att hopa sig. I jämförelse med referensdata 3,2 var chefernas medelvärde 4,02. De upplevde gott stöd, bra klimat och hade goda kunskaper för arbetsuppgifterna, men 32,8% av cheferna ansåg att de inte alls eller bara lite var insatt i AFS 2015:4. Avseende om arbetsbelastningen gav utrymme för att bedriva systematiskt arbetsmiljöarbete svarade fyra femtedelar av alla chefer inte alls eller i viss mån. Trots det goda stöd som cheferna upplevde är det viktigt att förebygga hög arbetsbelastning, då varaktig stress kan leda till ohälsa. Förutsättningar att bedriva systematiskt arbetsmiljöarbete begränsas också av deras arbetsbelastning och kan innebära negativa konsekvenser för medarbetarna.

Denna uppsats bidrar till forskning kring hur motivation påverkar relationen mellan stressorer och arbetsrelaterad stress. Specifikt studeras hur offentliganställdas motivation att arbeta för samhället, deras Public Service Motivation (PSM) påverkar den effekt kvoten mellan ansträngning och belöning har på deras stress. Sambandet mellan stress och kvoten av ansträngning och belöning (E/R-kvoten) förutspås av Effort Reward Imbalance-modellen. Denna modell tar dock enbart hänsyn till extern belöning, utgångspunkten är att individer med hög PSM är starkt motiverade av interna belöningsfaktorer, vilket antas ha en modererande effekt på modellens samband. Uppsatsen undersöker därmed den modererande effekten av PSM på sambandet mellan E/R-kvoten och stress hos svenska socionomer. Frågeställningen undersöktes genom en enkätstudie med 172 respondenter. Resultaten ger stöd för uppsatsens hypotes och visar att PSM har en negativ modererande inverkan på E/R-kvotens effekt på stress. Dessa resultat stöder delvis tidigare forskning men öppnar också nya möjligheter för framtida studier.

This purpose of this study is to find out the teachers&rsquo / perceived computer competencies and their expectations toward &ldquo / Bilgiye EriSim Portali&rdquo / prepared by Ministry of National Education. Study focused on 30 teachers and 5 administrators from six different schools in Ankara in 2005-2006 fall semester. A none-experimental descriptive survey research design was employed by administrating a 5-point Likert type Computer Competency Scale and an open-ended interview schedule. The statistical analysis of the data obtained through the Likert type scale questionnaire indicated that the teachers feel themselves partially competent about computers. The highest mean score for scale was observed for in Word Processing, and the lowest mean score was observed in Presentation and Desktop Publishing Software. It was also demonstrated that there was no significant difference between having a computer course and buying notebook given by MONE and computer competency score. It was found that although there was no significant difference in teachers&rsquo / perceived computer competencies in terms of gender, male teachers had higher mean scores than female teachers. It was revealed that the less experienced teachers&rsquo / mean scores are higher than the more experienced teachers&rsquo / mean scores. Even though there obtained differences in possession of computer at home and at school, it was not determined as a significant factor. The analysis of the qualitative data assisted the identification of expectations of teachers toward &ldquo / Bilgiye EriSim Portali&rdquo / . Under the light of the study results recommendations are suggested for both implication and further studies.

In this paper the compositional issues and techniques employed in my D.Mus. Thesis Composition Noite dos Tambores Silenciosos (for symphony orchestra) are discussed. The piece, constituted of three linked parts, exhibits a counterpoint of three distinct kinds of music as the main vehicle of the musical discourse. / Two of these musics are connected with Maracatu de Baque Virado and Maracatu Rural, popular musical manifestations found in Pernambuco, a state in northeast Brazil. In a "defragmentation" process, reference materials from the Maracatus are abstractly fragmented and reconstructed according to a technique I call Zin-Zout, implementing in the music a continuous state of transformation, back and forth between micro and macro dimensions. The third kind of music, free of folk references, follows a transformational process built up according to a "palimpsest" technique. In this transformation the hierarchy of the musical parameters changes along with the units of the musical content. / These procedures involve not only pitch and rhythm, but also other parameters like timbre, density and register in a structural way, as building elements of the content and form of the work. / The defragmentation process establishes some predetermined compositional paths, but permits micro- and macro-level decisions based on intuitive considerations, especially in the manipulation of orchestration and micro rhythms. More systematic, the organization of pitch involves a limited serialism and a variety of modal treatment.