Thesis (D. Min.)--Perkins School of Theology, Southern Methodist University, 1986. / Abstract and vita. Includes bibliographical references (leaves 132-137).

Made available in DSpace on 2014-06-11T19:23:39Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-01-30Bitstream added on 2014-06-13T18:10:03Z : No. of bitstreams: 1 coelho_wr_dr_ilha_prot.pdf: 3240058 bytes, checksum: f2c138a1a2cb98ce4eb9f9618ea59484 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / Cavitação em bombas centrífugas é a formação de bolhas de vapor do fluido bombeado na região de sucção do equipamento. As bolhas de vapor formadas em algum local do escoamento, em geral na região de sucção da bomba, entrarão posteriormente em colapso. Este fenômeno é importante cientificamente, tecnicamente e economicamente. Cientificamente é interessante, pois envolve o escoamento de um fluido em estado líquido, simultaneamente ocorre a formação de bolhas de vapor, que também escoam juntamente ao fluido líquido. O processo de vaporização e condensação de um fluido é complexo, pois envolve mudança de fase, um fenômeno térmico não linear. Tecnicamente, é importante porque quando o escoamento se dá com cavitação os parâmetros hidrodinâmicos do escoamento bem como da bomba, em geral, são fortemente alterados na direção termodinâmica de maior produção de irreversibilidades. Economicamente, é custoso porque a cavitação, em geral, leva a perda de eficiência termodinâmica dos processos e em conseqüência haverá maior custo na produção de um dado bem, diminuindo a eficiência econômica e a competitividade da empresa. O escoamento com cavitação na sucção de bombas apresenta três aspectos danosos principais: cavitação pulsante com baixa vazão; cavitação não pulsante com baixa altura útil; e erosão cavitacional. A cavitação pulsante é caracterizada por grande formação de bolhas de forma transitória com baixa freqüência e grande amplitude, gerando forças vibratórias importantes no sistema de bombeamento. A cavitação pulsante também causa colapso do fluxo de massa do fluido bombeado com valores que vão do fluxo normal da instalação até valores quase nulos, transitoriamente. Na cavitação pulsante a erosão cavitacional e a queda na altura útil são pequenas... / Cavitation in centrifugal pumps is the development of vapor bubbles from the pumped liquid into equipment suction region. Vapor bubbles developed somewhere in the flow, generally in the pump suction, will afterwards along the flow to collapse. This phenomenon is scientifically, technically and economically important. Scientifically, it is interesting because involves the flow of a fluid on liquid state, and simultaneously happens vapor bubbles development that also flow together the liquid fluid. Fluid vaporization and condensation processes are complex because involves phase change, a non-linear thermal phenomenon. Technically, it is important because when the flow happens with cavitation the flow and pump hydrodynamic parameters, generally, are strongly modified toward bigger thermodynamic irreversibility production. Economically, it is expensive because cavitation, generally, leads to thermodynamic process efficiency loss, and consequently it will have bigger costs for production of a given good, then decreasing economic efficiency and company competitiveness. Flow with cavitation in the pump suction presents three main devastating aspects: surging cavitation with low flow rate; steady cavitation with low total head; and cavitational erosion. Surging cavitation is characterized by unsteady, low frequency and high amplitude, intense bubbles development, producing strong vibration forces into the pumping system. Surging cavitation also causes the collapse of pumped fluid mass flow rate with values that goes from the normal flow to values that almost reach the zero flow, unsteadily. In surging cavitation, the cavitational erosion and the breakdown in total head are small. In steady cavitation the mass flow rate, and even the flow rate... (Complete abstract click electronic access below)

Orientador: João Batista Aparecido / Banca: Jose Luiz Gasche / Banca: Paulo Gilberto de Paula Toro / Resumo: Cavitação em bombas centrífugas é a formação de bolhas de vapor do fluido bombeado na região de sucção do equipamento. As bolhas de vapor formadas em algum local do escoamento, em geral na região de sucção da bomba, entrarão posteriormente em colapso. Este fenômeno é importante cientificamente, tecnicamente e economicamente. Cientificamente é interessante, pois envolve o escoamento de um fluido em estado líquido, simultaneamente ocorre a formação de bolhas de vapor, que também escoam juntamente ao fluido líquido. O processo de vaporização e condensação de um fluido é complexo, pois envolve mudança de fase, um fenômeno térmico não linear. Tecnicamente, é importante porque quando o escoamento se dá com cavitação os parâmetros hidrodinâmicos do escoamento bem como da bomba, em geral, são fortemente alterados na direção termodinâmica de maior produção de irreversibilidades. Economicamente, é custoso porque a cavitação, em geral, leva a perda de eficiência termodinâmica dos processos e em conseqüência haverá maior custo na produção de um dado bem, diminuindo a eficiência econômica e a competitividade da empresa. O escoamento com cavitação na sucção de bombas apresenta três aspectos danosos principais: cavitação pulsante com baixa vazão; cavitação não pulsante com baixa altura útil; e erosão cavitacional. A cavitação pulsante é caracterizada por grande formação de bolhas de forma transitória com baixa freqüência e grande amplitude, gerando forças vibratórias importantes no sistema de bombeamento. A cavitação pulsante também causa colapso do fluxo de massa do fluido bombeado com valores que vão do fluxo normal da instalação até valores quase nulos, transitoriamente. Na cavitação pulsante a erosão cavitacional e a queda na altura útil são pequenas... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: Cavitation in centrifugal pumps is the development of vapor bubbles from the pumped liquid into equipment suction region. Vapor bubbles developed somewhere in the flow, generally in the pump suction, will afterwards along the flow to collapse. This phenomenon is scientifically, technically and economically important. Scientifically, it is interesting because involves the flow of a fluid on liquid state, and simultaneously happens vapor bubbles development that also flow together the liquid fluid. Fluid vaporization and condensation processes are complex because involves phase change, a non-linear thermal phenomenon. Technically, it is important because when the flow happens with cavitation the flow and pump hydrodynamic parameters, generally, are strongly modified toward bigger thermodynamic irreversibility production. Economically, it is expensive because cavitation, generally, leads to thermodynamic process efficiency loss, and consequently it will have bigger costs for production of a given good, then decreasing economic efficiency and company competitiveness. Flow with cavitation in the pump suction presents three main devastating aspects: surging cavitation with low flow rate; steady cavitation with low total head; and cavitational erosion. Surging cavitation is characterized by unsteady, low frequency and high amplitude, intense bubbles development, producing strong vibration forces into the pumping system. Surging cavitation also causes the collapse of pumped fluid mass flow rate with values that goes from the normal flow to values that almost reach the zero flow, unsteadily. In surging cavitation, the cavitational erosion and the breakdown in total head are small. In steady cavitation the mass flow rate, and even the flow rate... (Complete abstract click electronic access below) / Mestre

This thesis deals with cultural sights reconstruction, particularly of sacral character, in villages of Český Krumlov district - in a region formerly inhabited by German population. The introductory parts focus on the development of Czech-German co-existence in Czech lands with its historical chapters, as well as on the impact of the 1939‑1989 events on cultural sights condition in the Czech borderland, particularly in the region of Český Krumlov. The following part is dedicated to history and mainly to the reconstruction of these sights. These reconstructions are a common venture of a cross-border cooperation of Czechs with expatriated German compatriots. The final part of the thesis is enriched by brief biographies of significant people who have bonds to this region.

The content of the diploma thesis was an architectural study of a sacral building in Brno - Líšeň. The subject of the study was the elaboration of an ideological design of a sacral complex, which consisted of a church and a parish. The main operator of the whole complex will be the Salesian community, whose background is in close proximity to the area. The basic idea of the design was to design a spiritual place, which in its form conveys clear information about the use of the object and at the same time supports the development of ideas of the Salesian community. It is a structure that conveys the mission itself, not by one element, but by a set of several elements that together create a story, vision, mission. The ideological solution in this case thus becomes an equilateral triangle, which symbolizes the Father, the Son and the Holy Spirit. With its dominant vertical direction facing the sky, the object symbolically points to the spiritual path and self-realization. The given area is solved as a complex, the elements of which complement each other and thus create a harmonious whole. The design creates a space for both liturgical celebrations in the interior and exterior, which is used by the outdoor presbytery, which is complemented by residential stairs. These elements are intended to encourage residents to meet and establish friendly relations.

For the knowledge economy of the twenty-first century, intellectual skills (such as critical thinking) have been identified as imperative for success. Educational institutions have a responsibility to equip students with the knowledge and skills required for future employment. The South African Institute of Chartered Accountants has identified critical thinking as one of the skills that should be developed in Financial Accounting students who wish to become chartered accountants. For this limited-scope dissertation a qualitative study was done, applying a constructivist paradigm to a case study design, to explore the development of critical thinking in first-year Financial Accounting students in an open distance and e-learning context in South Africa. To achieve this, data were collected through semi-structured interviews with twelve academics and the use of document analysis. As the focus of the study was limited to two first-year financial accounting modules which form part of the South African Institute of Chartered Accountants accredited programme taught at an open distance and e-learning institution, the findings cannot be generalised. While the perceptions of students were not considered in the study, the findings provide valuable insight into the development of critical thinking in accounting modules. The findings revealed that, although academics believe critical thinking skills and good thinking habits should be developed in first-year Financial Accounting students, it is currently only done through a content-centred approach, or not at all. Furthermore, only technologies which academics are comfortable using, are being incorporated, mainly for the delivery of content. The recommendations made for curriculum evaluation and professional development relate specifically to these findings. / Vir die een-en-twintigste-eeuse kennisekonomie is intellektuele vaardighede (soos kritiese denke) geïdentifiseer as noodsaaklik vir sukses. Opvoedkundige instellings het 'n verantwoordelikheid om studente met die kennis en vaardighede toe te rus wat nodig is vir toekomstige indiensneming. Die Suid-Afrikaanse Instituut vir Geoktrooieerde Rekenmeesters het kritiese denke geïdentifiseer as 'n vaardigheid wat studente in Finansiële Rekeningkunde, wat geoktrooieerde rekenmeesters wil word, moet ontwikkel. Vir hierdie verhandeling van beperkte omvang, is 'n kwalitatiewe studie gedoen deur 'n konstruktivistiese paradigma toe te pas op 'n gevallestudie-ontwerp om die ontwikkeling van kritiese denke in eerstejaarstudente in Finansiële Rekeningkunde in 'n oop e-afstandsleerkonteks in Suid-Afrika te ondersoek. Om hierdie doel te bereik, is data versamel deur semi-gestruktureerde onderhoude te voer met twaalf akademici en dokumentontleding te gebruik. Omdat die studie beperk was tot twee eerstejaar finansiële rekeningkunde modules, wat deel vorm van die Suid-Afrikaanse Instituut vir Geoktrooieerde Rekenmeesters se geakkrediteerde program wat by 'n oop e-afstandsleerinstelling aangebied word, kan die bevindinge nie veralgemeen word nie. Alhoewel die studente se persepsies nie in die studie in ag geneem is nie, bied die bevindings waardevolle insig oor die ontwikkeling van kritiese denke in rekeningkundemodules. Die bevindings dui daarop dat, alhoewel akademici glo dat vaardighede in kritiese denke en goeie denkgewoontes in die eerste jaar van Finansiële Rekeningkunde onderrig moet word, word dit tans slegs deur 'n inhoudgebaseerde benadering gedoen, of glad nie. Verder word slegs tegnologieë geïnkorporeer waarmee akademici gemaklik is, hoofsaaklik vir die oordrag van die inhoud. Die aanbevelings vir kurrikulumevaluering en professionele ontwikkeling hou spesifiek verband met hierdie bevindings. / Kha ikonomi ya nḓivho ya ḓanwaha fumbili nthihi, zwikili zwa nḓivho (zwi ngaho vhukoni ha u humbula nga nḓila yo dzudzaneaho) zwo topolwa sa ndaela ya mvelaphanḓa. Zwiimiswa zwa pfunzo zwi na vhudifhinduleli u lugisela matshudeni nga ndivho na zwikili zwine zwa ṱodea mishumoni ya tshifhingani tshidaho. Tshiimiswa tsha Afrika Tshipembe tsha Vhomakone vha Akhaunthini tsho topola vhukoni ha u humbula nga ndila yo dzudzaneaho vhune ha tea u bveledzwa kha matshudeni a Akhaunthini ya Masheleni vhane vha tama u vha vhomakone vha muvhalelano. Ho itwa ngudo dza khwalithathivi dza desithesheni ya tshikoupu tsho pimiwaho, hu tshi khou u fhaṱwa ndivho na kupfesesele nga kha tshenzhemo kha u bveledza ngudo, u wanulusa vhukoni ha u humbula nga ndila yo dzudzaneaho kha nwaha wa u thoma kha matshudeni a Akhaunthuni ya Masheleni kha nyimele ya tshiimiswa tsha u guda u kule na kha lubuvhisia Afrika Tshipembe. U swikelela izwi, data yo kuvhanganyiwa nga kha inthaviwu dzo dzudzanywaho na vhoraakademi vha fumimbili na u shumisa musaukanyo wa linwalo. Sa musi ngudo yo vha yo sedza fhedzi kha mimodulu mivhili ya nwaha wa u thoma ya Akhaunthini ya masheleni ine ya vhumba tshipida tsha mbekanyamushumo ya akhiredithesheni ya Tshiimiswa tsha Afrika Tshipembe tsha Vhomakone vha Akhaunthuni ine ya funzwa kha tshiimiswa tsha u guda u kule na kha Lubuvhisia, mawanwa a nga si angaredzwa. Ngeno kuvhonele kwa matshudeni ku songo dzhielwa ntha kha ngudo, mawanwa o ṋetshedzwa ndivho ya ndeme kha mveledziso ya vhukoni ha u humbula nga ndila yo dzudzaneaho kha mimodulu ya akhaunthini. Mawanwa o dzumbulula uri, naho vhoraakademi vha tshi tenda uri zwikili zwa vhukoni ha u humbula nga ndila yo dzudzaneaho na maitele a kuhumbulele kwavhudi zwi fanela u bveledziswa kha nwaha wa u thoma wa matshudeni vha Akhaunthini ya Masheleni, zwa zwino zwi khou itwa fhedzi nga kha maitele o disendekaho nga zwi re ngomu, kana zwa sa itwe na luthihi. Zwi tshe zwo ralo, ndi thekhinolodzhi fhedzi dzine vhoraakademi vha takalela u dzi shumisa, zwo tanganyiswa, nga maanda ndisedzo ya zwi re ngomu. Themendelo dzo itwa kha u ela kharikhulamu na mveledziso dzi re na vhushaka na mawanwa anea o tiwaho. / Institute for Open and Distance Learning (IODL) / M. Ed. (Open and Distance Learning)