Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / A presente pesquisa tem como objetivo estudar aspectos da produção de polpas de frutas congeladas, comercializadas em Boa Vista/RR, por meio de avaliação de processo produtivo e de análises laboratoriais, a fim de fornecer subsídios para inserção desta atividade no contexto sócio-econômico do Estado, contemplando os aspectos de saúde pública envolvidos / The objetive of this study is estimative the aspects of the production of frozen fruit pulps commercialized in Boa Vista/RR through evaluation of production procedure and laboratorial analyses; also provide subsides to the insertion of this activity on social economical context state, contemplating the public health aspects involved

<p><strong>Apstrakt je obrađen tehnologijama za optičko prepoznavanje teksta (OCR).</strong></p><p>U cilju revitalizacije otpadnog kvasca iz industrije piva za primenu u pekarskoj industriji, kao polazna osnova za ispitivanje primenjivani su dvostepeni i jednostepeni postupak proizvodnje predfaza indirektnog postupka proizvodnje hleba, razvijeni na Tehnolo&scaron;kom fakultetu u Novom Sadu. Sprovedena su istraživanja optimizacije postupka revitalizacije otpadnog pivskog kvasca. Optimizacija je obuhvatila sastav podloge, procesne parametre proizvodnje i tehniku fermentacije. Definisan je optimalni postupak revitalizacije otpadnog pivskog kvasca i primenjen je za različite generacije i sojeve otpadnog pivskog kvasca, pri čemu je utvrđeno da otpadni pivski kvasac nulte i prve generacije nije potrebno aktivirati, dok je za kvasac starije generacije neophodno da prođu postupak aktivacije za primenu u pekarskoj industriji. Jednostepeni postupak proizvodnje predfaza u postupku aktivacije pivskog kvasca pokazao se u pogledu efekata aktivacije prihvatljiviji od dvostepenog<br />postupka. Ispitana je i trajnost otpadnog pivskog kvasca za primenu u pekarskoj industriji pri čemu je utvrdeno da otpadni pivski kvasac nije preporučljivo čuvati duže od devet dana pre njegove aktivacije. Definisan postupak je pozitivno ocenjen u pogledu tokova fermentacionih procesa za vreme proizvodnje, uticaja na svojstva hlebnog testa i uticaja na kvalitet hleba kao gotovog proizvoda. Razrađeno je idejno re&scaron;enje postrojenja za revitalizaciju otpadnog pivskog kvasca.</p> / <p><strong>Abstract was processed by technology for Optical character recognition (OCR).</strong></p><p>The aim was revitalization of beer industry waste yeast, and its application in bakery industry. A basis for investigation was one- step and two-step process for prephases production in indirect procedure for bread manufacturing, which is developed on Faculty of Technology at Novi Sad. It was investigated optimization of revitalization procedure of brewing yeast waste. Optimization contained substrate composition, proces parameters for manufacturing and fermentation technique. It is optimated revitalization of brewing yeast waste and applied for different generations and subspecies. For brewing yeast waste from initial and first generation activation is not necessary, but for olden yeast generation and its application in bakery industry, activation is necessary. In prephases production, one step activation procedure of brewing yeast had better effectiveness thay two step procedure. Durability of brewig yeast waste was also investigated. It is concluted that brewing yeast waste is not recommended for storage longer than 9 days before its activation. Defined procedure in a vijew of mahufacturing fermentative processes, influence on bread dough properties and bread quality are marked pozitively. It is also defined a pattern of projects for ravitalization of brewing yeast waste.</p>

This final thessis deals with the complex technological preparation of pistons manufacture,ie, technological preparation and technological part of project preparation. The content of production technological preparation is to determine the number and sequence of technological operations, control plans, selection of appropriate production machines using progressive production methods, design tools and jigs for clamping pistons and the choice of cutting conditions for machining individual operations. Technological preparation of production specify the relationships between individual elements of the manufacturing system, ie the spatial machines distribution and operation times requirements, technology, handling, control, and other activities with maximum use of automation to increase productivity and economic efficiency of production process. The aim is to design an optimal piston technology for maximum productivity and production frugality.

<p><strong>Apstrakt je obrađen tehnologijama za optičko prepoznavanje teksta (OCR).</strong></p><p>Težeći ka ostvarenju u&scaron;teda u kvascu, stabilnosti procesa, povoljnim reolo&scaron;kim svojstvima, kvalitetu hleba primerenom jugoslovenskom trži&scaron;tu i pobolj&scaron;anju svojstava hlebnog testa, sprovedena su istraživanja usmerena ka optimizaciji postupka proizvodnje predfaza indirektnog postupka proizvodnje hleba. Optimizacija je obuhvatila sastav podloge, procesne parametre proizvodnje i tehniku fermentacije. Razvijena su dva postupka automatizovane proizvodnje predfaza indirektnog postupka proizvodnje hleba pod kontrolisanim uslovima: jednostepeni i dvostepeni postupak. Oba postupka su ocenjana u pogledu tokova fermentacionih procesa za vreme proizvodnje, uticaja na svojstva hlebnog testa i uticaja na kvalitet hleba kao gotovog proizvoda na bazi kojih&nbsp;je data uporedna ocena razvijenih postupaka. Jednostepeni postupak je ocenjen kao pristupačniji u pogledu cene postrojenja i trajanja proizvodnog procesa, dok je dvostepenom postupku data prednost u pogledu etekata na sastav dobijenih kvasova, uticaja na svojstva hlebnog testa, uticaja na kvalitet i održivost svežine hleba i stabilnost procesa. Utvrđena je mogućnost primene razvijenog dvostepenog postupka za revitalizaciju pivskog kvasca. Ispitivanjem reolo&scaron;kih svojstava dobijenih poluproizvoda - kvasova, utvrđeno je da se oni pona&scaron;aju kao pseudoplastični fluidi. Razradena su idejna re&scaron;enja postrojenja za primenu jednostepenog i dvostepenog postupka i izvr&scaron;ena je ocena ekonomske efikasnosti investiranja u primenu razvijenih postupaka u pekarama.</p> / <p><strong>Abstract was processed by technology for Optical character recognition (OCR).</strong></p><p>Converging to the yeast savings, process stability, bread quality desired on Yugoslav market and improvement of bread dough properties, investigations, aimed to optimization of prephases production in indirect bread production procedure, were conducted. Optimization of substrate composition, process parameters and fermentation technigue was performed. Two processes of automated production of indirect bread production prephases under controlled conditions were developed: one step and two step process. Both processes were estimated concerning fermentation processes development during production, influence on bread dough properties and influence on bread, as final product, quality. Parallel evaluations of developed processes were performed on basis of obtained data. One step process was evaluated as more advantageous concerning plant price and production duration. Advantage was given to the two step process concerning the ettects on composition ot obtained sour dough, influence on bread dough properties, influence on bread quality and shelt life and process stability. The possibility ot application ot developed two step process for revitalization ot brewing yeast was established. Investigations of rheological properties ot obtained semiproduct - sour dough, proved their behavior according to the power low model. Draft projects of plants tor application ot one step and two step processes and estimation ot economical efficiencies ot their application in bakeries were worked out.</p>

Submitted by BRUNO HENRIQUE PINTO (engbhpin@gmail.com) on 2018-06-29T13:15:23Z No. of bitstreams: 1 Execução de blocos para alvenaria estrutural utilizando concreto fluido 2018 (2).pdf: 4983067 bytes, checksum: cca8dd5aade17e86646b1fd28326a3f9 (MD5) / Approved for entry into archive by Cristina Alexandra de Godoy null (cristina@adm.feis.unesp.br) on 2018-06-29T14:16:19Z (GMT) No. of bitstreams: 1 pinto_bh_me_ilha.pdf: 4983067 bytes, checksum: cca8dd5aade17e86646b1fd28326a3f9 (MD5) / Made available in DSpace on 2018-06-29T14:16:19Z (GMT). No. of bitstreams: 1 pinto_bh_me_ilha.pdf: 4983067 bytes, checksum: cca8dd5aade17e86646b1fd28326a3f9 (MD5) Previous issue date: 2018-06-05 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / As complicações ocasionadas pelas irregularidades presentes na face de assentamento dos blocos de alvenaria estrutural, provenientes de procedimentos correntes de fabricação, possibilita um campo de estudo para otimização na melhoria dessas irregularidades. Para tanto, este trabalho tem por finalidade propor uma alternativa de fabricação dos blocos de alvenaria estrutural através do uso e aplicação de concreto fluido com os traços 1:3, 1:5 e 1:7, cujas resistências à compressão deles e dos prismas, atendam às exigências das normas NBR 15961-1 e NBR 15961-2. Assim, além de moldados e confeccionados os blocos e os prismas, neste trabalho são apresentados ensaios de ambos, bem como os ensaios das argamassas de assentamento mista e polimérica. Em alguns destes ensaios utilizaram-se LVDTs e Strain-Gages, com objetivo de verificar os seus deslocamentos e suas deformações, e consequentemente as tensões atuantes, nos blocos e nos prismas. / Complications arising from imperfections on the bonded surface of structural masonry blocks, from current manufacturing procedures, makes it a field of study for optimization in the improvement of these irregularities. To this end, this paper aims to propose an alternative to the manufacture of structural masonry block through the use and application of fluid concrete with mixture 1:3, 1:5 and 1:7, whose resistance to compression them and prisms, meet the requirements established by the Brazilian technical standards NBR 15961-1 and NBR 15961-2. Thus, this work describes tests performed on blocks and prisms. The prisms were tested with mixed and polymeric block-laying mortars. In some of these tests using LVDTs and Strain Gages to check their displacements and their deformations, and consequently tensions, in the blocks and prisms.

Orientador: Maria da Consolação Fonseca Albuquerque / Resumo: As complicações ocasionadas pelas irregularidades presentes na face de assentamento dos blocos de alvenaria estrutural, provenientes de procedimentos correntes de fabricação, possibilita um campo de estudo para otimização na melhoria dessas irregularidades. Para tanto, este trabalho tem por finalidade propor uma alternativa de fabricação dos blocos de alvenaria estrutural através do uso e aplicação de concreto fluido com os traços 1:3, 1:5 e 1:7, cujas resistências à compressão deles e dos prismas, atendam às exigências das normas NBR 15961-1 e NBR 15961-2. Assim, além de moldados e confeccionados os blocos e os prismas, neste trabalho são apresentados ensaios de ambos, bem como os ensaios das argamassas de assentamento mista e polimérica. Em alguns destes ensaios utilizaram-se LVDTs e Strain-Gages, com objetivo de verificar os seus deslocamentos e suas deformações, e consequentemente as tensões atuantes, nos blocos e nos prismas. / Abstract: Complications arising from imperfections on the bonded surface of structural masonry blocks, from current manufacturing procedures, makes it a field of study for optimization in the improvement of these irregularities. To this end, this paper aims to propose an alternative to the manufacture of structural masonry block through the use and application of fluid concrete with mixture 1:3, 1:5 and 1:7, whose resistance to compression them and prisms, meet the requirements established by the Brazilian technical standards NBR 15961-1 and NBR 15961-2. Thus, this work describes tests performed on blocks and prisms. The prisms were tested with mixed and polymeric block-laying mortars. In some of these tests using LVDTs and Strain Gages to check their displacements and their deformations, and consequently tensions, in the blocks and prisms. / Mestre

International LCA literature indicates that little data is available pertaining to potable water production and supply, in particular with respect to the environmental burdens generated within the system. This study aims to investigate and assess the environmental burdens associated with the potable water supply to an industrial area (Rosslyn, north of Pretoria, in the Tshwane Metropolitan Municipality). The procedure, as well as the assessment of the environmental impacts of a life cycle, is dependent on a comprehensive life cycle inventory (LCI) of the evaluated system. Water use is included in LCIs, which are incorporated into the LCIA procedure, as it reflects a direct extraction from available resources. The water supply system diagram has been developed and data was collected, treated and analysed in the inventory analysis phase. The study closely followed the four phases as stipulated in the International Organization for Standardization (ISO 14040 series of standards) for conducting LCAs, including: -- goal and scope definition; -- LCI analysis; -- LCIA; and -- interpretation, conclusions and recommendations. The methodology used in the impact assessment phase was the introduced LCIA framework for South Africa in order to determine the extent of different environmental impacts. The inventory analysis, conforming to the scope of the study, provided an overall inventory of energy and other resource requirements, emissions to water and air, dust fallouts and solid or liquid wastes for the system under study. By using this methodology and by tracing all unit processes involved in the potable water supply system, the main contribution to the environmental burdens imposed on the potable water supply system was found to be the extraction of the required water from nature to supply potable water to Rosslyn. The toxicity potential impacts on water resources, mainly due to the electricity required for the water supply system, are of minor importance. This conclusion is valid for the system investigated, and as a result, the recommendations for environmental improvements should focus on water losses that must be addressed foremost. What is required at this stage is strategic planning regarding the extraction, use and conservation of water resources. Furthermore, to optimise all processes of water extraction, and to make them more efficient, electricity and other energy inputs are also of importance, albeit to a lesser extent. / Dissertation (M (Applied Sciences : Environmental Technology))--University of Pretoria, 2007. / Chemical Engineering / unrestricted