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1
Guarino, Rocco. "Progettazione preliminare di un ponte ad arco a via inferiore ed approfondimento delle operazioni di tesatura dei cavi di sospensione." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.
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La tesi si propone di analizzare il comportamento statico del Ponte caso studio ricavando le sollecitazioni di massima agenti sugli elementi principali mediante l’utilizzo di schemi di calcolo semplici. A tale scopo si approfondisce la trattazione analitica dei sistemi collaboranti arco – trave: la trasmissione del carico dall’impalcato all’arco è affidata alla cortina di sospensione che crea una collaborazione tra i due elementi principali. Ai fini del dimensionamento di massima risulta fondamentale capire in che modo vengano assorbiti i carichi permanenti, senza trascurare l’effetto legato alle azioni variabili da traffico. Sulla base di tali considerazioni si ricerca una spiegazione della concezione strutturale dell’opera tenendo in conto degli aspetti legati alla stabilità degli archi, significativi per questo tipo di struttura. Una delle operazioni più delicate del progetto analizzato, oltre alla fase di varo della struttura, è rappresentata dalla pretesatura dei cavi di sospensione. Tale operazione comporta l’applicazione di singole forze concentrate sull’arco che possono avere notevole entità: si realizzano delle condizioni tali per cui possono insorgere nell’arco delle sollecitazioni flessionali significative, tali da condizionarne la progettazione, nel caso in cui si intenda operare una pretesatura per fasi. E’ proprio su questo aspetto che si basa la seguente tesi, presentando una procedura per la determinazione dei valori esatti di pretensione dei cavi che risulti in grado di tenere in conto dell’effettiva sequenza di installazione dei cavi stessi, senza necessariamente ipotizzare la pretensione simultanea. In quest’ottica l’analisi evolutiva della struttura, che consente l’inserimento di elementi e carichi in conformità con quanto previsto a progetto, si è rivelata un ottimo strumento, tale da permettere il controllo dei risultati ottenuti e valutare l’effettiva possibilità di pretesatura per fasi.
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Apolín, Meza Dante Ludwig. "The implicit Res Judicata and the Right of Defense." IUS ET VERITAS, 2016. http://repositorio.pucp.edu.pe/index/handle/123456789/122594.
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This article presents the analysis of the concept of the “implicit res judicata” and what problems it generates. To do this, the author analyzes what is traditionally understood by “objective limits” of “res judicata” and, from this; the true scope of the concept of “res judicata” implicitly will be established.Este artículo plantea el análisis del concepto de cosa juzgada implícita y los problemas que genera. Para ello, se analiza lo que tradicionalmente se ha entendido por límites objetivos de la cosa juzgada y, a partir de ello, se establecerá el verdadero alcance del concepto de cosa juzgada implícita.
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Alfaro, Luis. "The abandonment issue of the imprescriptible pretensions." Pontificia Universidad Católica del Perú, 2017. http://repositorio.pucp.edu.pe/index/handle/123456789/115806.
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In this article, the issue around abandonment in judicial proceedings (Procedural abandonment) related with the imprescriptible pretensions will be analyzed, with a special mention to those relative to the right to property. The issue discussed in the National Jurisdictional Plenary of Civil Law and Civil Procedure of 2016 will be criticized. The true issue to be solved is revealed, it’s the one related to the imprescriptible pretensions as case of inappropriateness of abandonment. It raises reasons that put in question the normative provision that links the procedural abandonment with those pretensions. Precisely because of the lack of strong arguments to justify the relation, a necessary legislative amendment is proposed.En el presente artículo se analiza el problema del abandono en los procesos judiciales relacionados con las pretensiones imprescriptibles, con una especial mención de aquellas relativas al derecho de propiedad. Se critica la cuestión analizada en el Pleno Jurisdiccional Nacional Civil y Procesal Civil de 2016 sobre el particular. Se pone de manifiesto que la verdadera cuestión a resolverse es la referida a las pretensiones imprescriptibles como supuestos de improcedencia de abandono. Se expone razones que ponen en entredicho la disposición normativa que vincula el abandono procesal con dichas pretensiones. Justamente por la falta de argumentos fuertes que justifiquen tal relación, se propone (delege ferenda) su necesaria enmienda legislativa.
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Pozzolo, Susanna. "Robert Alexy, fundamental rigths, legal speach and practical rationality. ¿A realistic reading?" Derecho & Sociedad, 2017. http://repositorio.pucp.edu.pe/index/handle/123456789/118945.
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This article focuses on the analysis of the literature produced by Robert Alexy, a renowned German jurist, focusing on the concept of fundamental rights, which are, in a constitutional state of law, the ultimate goal of the legal system. Thus, for Alexy the rights of people are not moral, but rather legal. It is in this sense and taking as a starting point the conception of fundamental rights that the author proposes a tentative reading from a moderate realistic perspective of some aspects of the theoretical position of Alexy.El presente artículo se centra en el análisis de la literatura producida por Robert Alexy, reconocido jurista alemán, centrada en el concepto de los derechos fundamentales los cuales son, en un estado constitucional de derecho, el fin último del ordenamiento jurídico. Así, para Alexy los derechos de las personas no son de tipo moral, sino más bien, jurídico. Es en ese sentido y tomando como premisa de partida la concepción de los derechos fundamentales que la autora propone una lectura tentativa desde una perspectiva realista moderada de algunos aspectos de la posición teórica de Alexy.
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Gutiérrez, Ferreira Pedro Pablo. "Reivindicación, Petición, Pretensión de Herencia." Pontificia Universidad Católica del Perú, 2015. http://repositorio.pucp.edu.pe/index/handle/123456789/115452.
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Hossain, Md Jahangir. "Effects of Pretension in Bolt for a Slewing Bearing." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for marin teknikk, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-25271.
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This thesis is to check to bolt pretension for high duty bolted joint in the slewing ring. The bolted joint in the slewing ring is of special type the loads acts off axis of the bolt. For this kind of bolted joint, there is no direct theory. Most of them are based on experiments and are empirical. Some is also based on standards and experience. In the recent years, some finite element simulation has been done by some researchers. In this thesis, a finite element model was made using ANSYS WORKBENCH and an analytical formulation was used to find the work load on the bolt and then applied it in the WORKBENCH simulation and the result was satisfactory.The main task included in this thesis is to investigate the effect on the fatigue life of bolt with reduced pretension. This was also done and the result was satisfactory.Another task was to investigate the effect of plastic material behavior if time is allowed. This task was not addressed here due to time limitations.Other software used for this thesis was AUTOCAD INVENTOR. This was used to develop the model and later the model was analyzed in the WORKBENCH.The loads which act on the slewing bearing in this case comes from load history of the crane. A FORTRAN CODE was written using stiffness method to get loads on the ring from load history.Few recommendations for future work with this topics has also been attached at the end.
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Kong, Paul Y. L. "Transfer of prestress by pretensioned wire tendons." Curtin University of Technology, School of Civil Engineering, 1993. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=11324.
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Key words: End zone, prestress transfer, wire tendon, transmission length, pull-in, plain wire, indented wire, concrete strength, size of wire, gradual release, sudden release, shock release, time dependent effects.An empirical investigation into the transfer of prestress force from wire tendons to concrete in the end zones of pretensioned prestressed concrete beams was accomplished in this project. The experimental tests featured 56 small scale prestressed concrete beams.Some of the factors influencing prestress transfer which were considered in the current tests are as follows:(a) type of release - gradual, sudden or shock(b) surface condition of the wire - plain or indented(c) size of the wire(d) concrete compressive strength at the time of transfer(e) time dependent effectsMost of the tests involved gradual release of steel tendons with the prestressing force transferred in approximately ten equal increments. Sudden release in a single step was achieved by allowing the supporting abutments to retract rapidly. Shock release was implemented in some beams by angle grinding the wires. The type of release which gave the best quality of prestress transfer was gradual release. This was followed by sudden and shock releases respectively.There were four types of wires used in the laboratory tests: namely the 5 mm dia. Plain, 5 mm dia. Chevron indented, 7 mm dia. Plain and 7 mm dia. Belgian indented wires. Transmission lengths were determined from strain distributions for these wires. Pull-ins of the wire tendons at the ends of the beams were also measured.There was significant scatter in the experimental data. Different ranges of transmission lengths and pull-ins were obtained for the various types of wires used.Three equations were derived for the 5 mm dia. Plain, 5 mm dia. Chevron and 7 mm dia. Plain wires, which linearly correlated pull-ins to the transmission lengths. ++These relationships provide a qualitative and quantitative method of indirectly monitoring for the transmission lengths through the measurements of pull-in.Statistical inference tests proved that indented wires were superior in performance compared to plain wires, but the differences were more apparent for the pull-ins than for the transmission lengths.Comparisons on the influence of tendon size substantiated that greater pull-ins occurred for larger wires but the differences were not significant for the transmission lengths.For concrete strength at the time of transfer of less than 32 MPa, the transmission lengths and pull-ins were significantly larger than those for higher strengths. It is recommended that concrete strength at transfer be at least 32 MPa for pretensioned prestressed concrete.Apart from the maturity and strength of concrete, the quality of a mix also influenced the transmission length and there was limited data to suggest that a better grade mix despite having lower strength at a more tender age could outperform a lower grade mix with greater strength released after a longer curing period.Formulae for plain and indented wires were found by dimensional analysis which correlated the transmission length to the diameter of wire tendon and the stress/strength ratio of the prestressed beams.Pull-ins increased significantly over 6 months but the changes in the transmission lengths were small. Normalised longitudinal strain distributions did not indicate that transmission lengths would remain unchanged over time.
8
Haji, Arshad Abdul Aziz. "Moment continuity for simply supported pretensioned concrete bridges." Thesis, University of Nottingham, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267146.
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Sufian, Fuad. "Analysis and design methods for pretensioned cable net structures." Thesis, University of Liverpool, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317242.
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Apolín, Meza Dante Ludwig. "Apuntes iniciales en torno a la Acumulación de Pretensiones." Derecho & Sociedad, 2017. http://repositorio.pucp.edu.pe/index/handle/123456789/118040.
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Palacios, Pareja Enrique. "La pretensión reivindicatoria: las dos caras de la moneda." IUS ET VERITAS, 2017. http://repositorio.pucp.edu.pe/index/handle/123456789/122369.
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Papastergiou, Panagiotis. "A confinement model for concrete wrapped of pretensioned with frp." Thesis, University of Sheffield, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.527213.
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Snow, Edward Ramsey. "The load/deflection behavior of pretensioned cable-pulley transmission mechanisms." Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/36477.
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Cross, Benjamin Thomas. "Structural Performance of High Strength Lightweight Concrete Pretensioned Bridge Girders." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/26190.
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The use of high compressive strengths in prestressed bridge girders can lower costs by allowing for longer spans, increased girder spacing, and smaller cross-sections. If high strength lightweight concrete (HSLWC) is used, these advantages are further enhanced due to the corresponding reduction in self-weight. Additional benefits can then be realized in the form of more traffic lanes, increased load capacity, smaller substructures, reduced crane capacity requirements, and lower shipping costs.
Despite the possible economic savings, HSLWC has been used infrequently in prestressed bridge girder applications across the nation. While recent research has been performed to extend the applicability of current bridge design specifications to normal weight concretes with strengths as high as 18 ksi, little
has been done by comparison with regards to HSLWC. The purpose of the research in this report was to assess whether current bridge design specifications for transfer length, development length, prestress loss, camber, and flexural capacity are satisfactory for use with fully-bonded, pretensioned flexural members consisting of HSLWC and to make recommendations for improvements where necessary.
Twelve high strength pretensioned beams of variable unit weight (eight lightweight beams and
four normal weight beams) and strand size (eight beams with 0.5-in. strand and four beams with 0.6-in. strand) were cast at the Thomas M. Murray Structural Engineering Laboratory at Virginia Tech. These beams were allowed to sit for a period of several months after fabrication while measurements were taken regarding transfer length, prestress loss, and camber. After this period, the beams were load tested to collect development length data, flexural data, and further data related to prestress loss. In
addition to the laboratory cast beams, prestress loss and camber data from six full-size bridge beams (five lightweight beams and one normal weight beam) cast as part of a separate project at Virginia Tech was examined. Analysis of the results for all beams shows that with a few caveats, the current AASHTO LRFD Specifications and other design methods examined regarding the topics under consideration are satisfactory for use in the design of HSLWC pretensioned bridge girders with properties similar to those of the beams studied.Ph. D.
15
Beier, Jonathan T. "THE EFFECTS OF PRESTRESSING FORCE TRANSFER IN PRETENSIONED CONCRETE MEMBERS." Ohio University / OhioLINK, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1171391099.
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Kamarudin, Kamarul Azhar. "Ballistic response of aluminium alloy and carbon fibre reinforced plastic panels with pretension." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/ballistic-response-of-aluminium-alloy-and-carbon-fibre-reinforced-plastic-panels-with-pretension(a7a2e877-9362-4c58-8320-dc9a23448693).html.
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Aircraft disasters during take-off and landing by the impact of foreign object debris (FOD) have always been an important issue. When the wing is lifted, its upper and bottom surfaces are subjected to compressive and tensile stresses, respectively. The bottom surface of the aircraft wing is vulnerable due to the threat of runway debris, which may travel at high speed, leading to the catastrophic failure of structures under tension. This thesis studies the ballistic performance of a structural panel subjected to projectile impact when the influence of in-plane pretension is considered. An experimental program was proposed to obtain the laboratory testing results where a special rig was designed to apply pretension to the panel as it is being hit by a projectile launched from a gas gun at velocities between 60 to 160 m/s. Instrumentation was used to record impact and residual velocities at different stages of the impact process. The panel was supported on opposing sides in one direction with two free sides in the other direction. Two target materials related to aircraft structure were considered, i.e., aluminium alloy, 2014-T6 and carbon fiber reinforced plastic (CFRP). Two projectile nose shapes - including flat and hemisphere - were used to account for the influence of debris on the ballistic performance of the target. Target materials were fully characterized in the experimental program. Finite element (FE) models were established and validated, and were used to simulate the response and damage of the panels in the experiments when the influence of pretension is considered. The damage of aluminium alloy, 2014-T6 was modeled using shear failure criterion with damage evolution. For CFRP, the in-plane damage initiation was modeled using Hashin’s damage criterion with damage evolution in terms of fracture energy. Parametric studies were done for both aluminium alloy 2014-T6 and CFRP panels with various pretensions of up to 50% of the material ultimate strength. It has been shown that the pretension has more profound effect on the ballistic behavior of the CFRP panel in comparison with its influence on the ballistic behavior of aluminium alloy panel. The simplified analyses and the numerical modeling reflect the physical nature of the impact response and damage of aluminium alloy and CFRP target panels. Hashin’s damage model for CFRP needs to be extended from in-plane to out-of-plane in order to include shear failure, which may happen for the flat nose projectile impact.
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Devulapally, Shiva Reddy. "P-DELTA EFFECT ON PRETENSIONED CONCRETE GIRDERS DUE TO PRESTRESSING FORCE." OpenSIUC, 2019. https://opensiuc.lib.siu.edu/theses/2494.
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Bolduc, Matthew W. "Full-Scale Testing of Pretensioned Concrete Girders with Partially Debonded Strands." University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1613748086228573.
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Crispino, Eric Daniel. "Anchorage Zone Design for Pretensioned Bulb-Tee Bridge Girders in Virginia." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/31454.
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Precast/Prestressed concrete girders are commonly used in bridge construction in the United States. The application and diffusion of the prestress force in a pretensioned girder causes a vertical tension force to develop near the end of the beam. Field surveys of the beam ends of pretensioned bridge girders indicate that many of the PCBT beams used in the Commonwealth of Virginia develop cracks within the anchorage zone region. The lengths and widths of these cracks range from acceptable to poor and in need of repair. Field observations also indicate deeper cross sections, very heavily prestressed sections, and girders with lightweight concrete tend to be most susceptible to crack formation.
This research examined a new strut-and-tie based design approach to the anchorage zone design of the PCBT bridge girders used in Virginia. Case study girders surveyed during site visits are discussed and used to illustrate the nature of the problem and support the calibration of the strut-and-tie based model. A parametric study was conducted using this proposed design model and the results of this study were consolidated into anchorage zone design tables. The results of the parametric study were compared to the results obtained using existing anchorage zone design models, international bridge codes, and standard anchorage zone details used by other states. A set of new standard details was developed for the PCBT girders which incorporates elements of the new design approach and is compatible with the anchorage zone design aids.
A 65 ft PCBT-53 girder was fabricated to verify the new strut-and-tie based design model. This girder contained anchorage zone details designed with the new model. The new anchorage zone details were successful at controlling the development of anchorage zone cracks. The new design approach is recommended for implementation by the Virginia Department of Transportation.Master of Science
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Ariano, Deho Eugenia. "La acumulación de pretensiones y los dolores de cabeza de los justiciables." IUS ET VERITAS, 2015. http://repositorio.pucp.edu.pe/index/handle/123456789/123727.
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El trabajo analiza los principales problemas que presenta la regulación de la acumulación de pretensiones en el Código Procesal Civil peruano de 1993, poniéndose en evidencia el cómo su equívoco tratamiento ha conducido a que en la praxis judicial se llegue a soluciones irracionales e incompatibles con el principio de efectividad de la tutela jurisdiccional. The paper analyzes main problems presented by the regulation of the joinder of claims in the Peruvian Civil Procedural Code of 1993, putting in evidence how its equivocal treatment has led to that in judicial practice to reach solutions irrational and incompatible with the principle of effectiveness of the jurisdictional protection
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Waldron, Christopher Joseph. "Investigation of Long-Term Prestress Losses in Pretensioned High Performance Concrete Girders." Diss., Virginia Tech, 2004. http://hdl.handle.net/10919/29672.
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Effective determination of long-term prestress losses is important in the design of prestressed concrete bridges. Over-predicting prestress losses results in an overly conservative design for service load stresses, and under-predicting prestress losses, can result in cracking at service loads. Creep and shrinkage produce the most significant time-dependent effect on prestress losses, and research has shown that high performance and high strength concretes (HPC and HSC) exhibit less creep and shrinkage than conventional concrete. For this reason, the majority of traditional creep and shrinkage models and methods for estimating prestress losses, over-predict the prestress losses of HPC and HSC girders.
Nine HPC girders, with design compressive strengths ranging from 8,000 psi to 10,000 psi, and three 8,000 psi lightweight HPC (HPLWC) girders were instrumented to determine the changes in strain and prestress losses. Several creep and shrinkage models were used to model the instrumented girders. For the HPLWC, each model over-predicted the long-term strains, and the Shams and Kahn model was the best predictor of the measured strains. For the normal weight HPC, the models under-estimated the measured strains at early ages and over-estimated the measured strains at later ages, and the B3 model was the best-predictor of the measured strains. The PCI-BDM model was the most consistent model across all of the instrumented girders.
Several methods for estimating prestress losses were also investigated. The methods correlated to high strength concrete, the PCI-BDM and NCHRP 496 methods, predicted the total losses more accurately than the methods provided in the AASHTO Specifications. The newer methods over-predicted the total losses of the HPLWC girders by no more than 8 ksi, and although they under-predicted the total losses of the normal weight HPC girders, they did so by less than 5 ksi.Ph. D.
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Dass, Praveen Kumar. "Evaluation of a Multi-linear Stiffness Model for T-Stub Connection Under Varying Fastener Pretension Levels." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1141286677.
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Saber, Aziz. "High performance concrete : behavior, design, and materials in pretensioned AASHTO and NU girders." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/19095.
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Adnan, Mohsin. "Impact of AASHTO LRFD specifications on the design of precast, pretensioned u-beam bridges." Texas A&M University, 2005. http://hdl.handle.net/1969.1/3096.
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Texas Department of Transportation (TxDOT) is currently designing its highway
bridge structures using the AASHTO Standard Specifications for Highway Bridges, and
it is expected that TxDOT will make transition to the use of the AASHTO LRFD Bridge
Design Specifications before 2007. The objectives of this portion of the study are to
evaluate the current LRFD Specifications to assess the calibration of the code with
respect to typical Texas U54 bridge girders, to perform a critical review of the major
changes when transitioning to LRFD design, and to recommend guidelines to assist
TxDOT in implementing the LRFD Specifications. This study focused only on the
service and ultimate limit states and additional limit states were not evaluated.
The available literature was reviewed to document the background research
relevant to the development of the LRFD Specifications, such that it can aid in meeting
the research objectives. Two detailed design examples, for Texas U54 beams using the
LRFD and Standard Specifications, were developed as a reference for TxDOT bridge
design engineers. A parametric study was conducted for Texas U54 beams to perform an
in-depth analysis of the differences between designs using both specifications. Major
parameters considered in the parametric study included span length, girder spacing,
strand diameter and skew angle. Based on the parametric study supplemented by the
literature review, several conclusions were drawn and recommendations were made. The
most crucial design issues were significantly restrictive debonding percentages and the
limitations of approximate method of load distribution.The current LRFD provisions of debonding percentage of 25 percent per section
and 40 percent per row will pose serious restrictions on the design of Texas U54 bridges.
This will limit the span capability for the designs incorporating normal strength
concretes. Based on previous research and successful past practice by TxDOT, it was
recommended that up to 75% of the strands may be debonded, if certain conditions are
met.
The provisions given in the LRFD Specifications for the approximate load
distribution are subject to certain limitations of span length, edge distance parameter (de)
and number of beams. If these limitations are violated, the actual load distribution should
be determined by refined analysis methods. During the parametric study, several of these
limitations were found to be restrictive for typical Texas U54 beam bridges. Two cases
with span lengths of 140 ft. and 150 ft., and a 60 degree skew were investigated by
grillage analysis method.
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Shah, Falak Dipak. "Time-dependent behavior of pretensioned stainless steel bars used for structural rehabilitation and retrofitting." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/53063.
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The objective of this study is to characterize the long-term behavior of an austenitic-ferritic stainless steel-based pretensioned system for strengthening reinforced concrete bridge pier caps in shear. Stress relaxation experiments were conducted on UNS S32101 stainless steel bars subjected to various initial stresses and temperatures within the low homologous temperature (LHT) regime. Data from these experiments were used to develop a viscoplastic constitutive model to describe the long-term time- and temperature-dependent behavior of the stainless steel bars. This mechanics-based approach is integrated with an analytical method based on strut-and-tie analysis to compute the shear strength of reinforced concrete pier caps strengthened with this external pretensioned system.
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Barnes, Robert Wesley. "Development length of 0.6-inch prestressing strand in standard I-shaped pretensioned concrete beams /." Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.
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Lisboa, Renato Rodrigues. "A escrita idiomática para tuba nos dobrados seresteiro, saudades e pretensioso de João Cavalcante." Universidade Federal de Minas Gerais, 2005. http://hdl.handle.net/1843/AAGS-7YQHJB.
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Since its appearance in the 19th century in Brazil, the retreta band (which shares some features with the symphonic band and marching band), has provided services and entertainment on important social dates to the musical life of most of the countrys small cities. It also provides musicians for most Brazilian military bands and the wind sections of symphony orchestras. Its favorite and the most characteristic musical genre is the dobrado, which origins can be traced back to the European military music. Dobrados are usually in a 2/4 meter and formally organized in 3 main sections. In traditional dobrado writing, the tuba plays simple accompaniments, usually the bass notes of the chords in simple rhythms, emphasizing the pulses or the strong parts of the beat. Composer and conductor João Cavalcante (1902 1985), born in the State of Minas Gerais, the Brazilian state with the greatest number of retreta bands (FUNARTE, 2004; SECRETARIA DE ESTADO DA CULTURA DE MINAS GERAIS, 2004), developed a retreta band writing style in which he mixed popular and classical elements. In Seresteiro, Saudades and Pretensioso, three out of his 23 dobrados Cavalcante used unexpected harmonic schemes, symphonic traits (instrumentation, textures and counterpoint), in which the tuba receives a soloistic treatment and plays a central role. This study aims at identifying João Cavalcante´s musical style in these three retreta band dobrados, his idiomatic writing for the tuba and also presenting a catalogue of João Cavalcante´s dobrados.Desde seu surgimento no século XIX, as bandas de retreta têm provido não apenas entretenimento e serviços à população de pequenas cidades em datas sociais importantes, mas também como um pólo formador de significativa parcela dos músicos das bandas militares e dos naipes de sopros das orquestras sinfônicas do Brasil. O gênero musical mais identificado com as bandas de retreta e o preferido no repertório de seus músicos é o dobrado. Os dobrados, cujas origens remontam às músicas militares européias (pasodoble), geralmente se apresentam em compasso binário 2/4, formalmente organizados em três seções principais. Geralmente, na escrita tradicional dos dobrados, a tuba recebe a mera função de acompanhamento, fazendo os baixos dos acordes em ritmos simples, enfatizando a pulsação ou partes fortes do tempo. O compositor e maestro João Cavalcante (1902-1985), nascido em Minas Gerais, estado brasileiro com o maior número de bandas de retreta, destacou-se por mesclar elementos populares e eruditos na sua música para bandas, tendo escrito 23 dobrados. Nos dobrados Seresteiro, Saudades e Pretensioso, a tuba recebe um tratamento solístico inusitado, exercendo um papel de destaque em meio a uma escrita sinfônica (instrumentação, timbres e texturas), ao mesmo tempo observa-se um tratamento não tradicional do esquema harmônico formal dos dobrados. Os objetivos desta pesquisa são identificar características do estilo musical de João Cavalcante nos dobrados para banda de retreta, na sua escrita idiomática para tuba e apresentar uma catalogação deste repertório do compositor.
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Gaur, Avdhesh. "Review of State of the Art and Practice of Strand Debonding for Pretensioned Girders." University of Cincinnati / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1406880547.
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Alvarado, Montenegro Sally Medalith. "Interés para obrar y legitimidad para obrar en la pretensión de cambio de nombre." Bachelor's thesis, Universidad Católica Santo Toribio de Mogrovejo, 2018. http://tesis.usat.edu.pe/handle/usat/1260.
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En el presente trabajo desarrollaré el tema del interés para obrar, la legitimidad para obrar y la posibilidad jurídica en la pretensión de cambio de nombre en el ordenamiento jurídico peruano. A través de este estudio se establecen los criterios por los cuáles una persona puede realizar el cambio de nombre, esto es, a quién hubiere sido conocido con nombre distinto al que aparece en su acta, cambiar o adicionar tanto el nombre propio como los apellidos para adecuarlos a la realidad social y hacer posible la identificación de la persona, en base a lo establecido en los fundamentos de nuestra normativa y jurisprudencia. Finalmente es necesario reconocer que el sujeto que posee el nombre es el único con la legitimidad para iniciar la acción de cambio de nombre y en caso se trate de un menor de edad, actuarán quienes posean la representación legal o judicial sin vulnerar el interés superior del niño o adolescente. Respecto del interés para obrar, es necesario determinar de modo genérico los motivos causantes de daño moral para determinar la procedencia de la demanda y realizar el cambio de nombre para ajustarlo a la realidad social, incluyendo nombre propio y apellidos.Tesis
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Ringer, Geoffrey Wadsworth. "Evaluation of Graft Pretension Effects in Anterior Cruciate Ligament Reconstruction: A Series of In Vitro and In Vivo Experiments." Diss., Virginia Tech, 1998. http://hdl.handle.net/10919/40494.
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The purpose of this dissertation was to study the effects of graft pretension in anterior cruciate ligament (ACL) reconstruction through a series of experiments. First, an in vitro study of 5 human knees was conducted to determine if intact joint kinematics could be restored when using the ideal graft - the intrinsic ACL. The ACL tibial insertion site was freed, and pretensions of 0, 10, 20, 30, and 40 N were applied to the ligament using a custom designed load cell connection. Kinematics during a simulated active extension were compared to those of the intact knee. Intact knee kinematics were not restored. Pretensions that best restored tibial anterior/posterior translation and internal/external rotation ranged from 0-40 N. Furthermore, the pretensions that best restored these kinematic variables were widely disparate in two specimens. Second, the in vitro kinematics during a simulated active extension of human and porcine knees were compared and contrasted both prior to and following transection of the ACL. The ACL limited: (1) tibial anterior translation in both species, (2) tibial internal rotation in humans, and (3) tibial external rotation in pigs. Differences in kinematic patterns for tibial internal/external rotation and abduction/adduction between the species was explained by requirements for biped and quadruped stances. Third, the mechanical characteristics of porcine patellar tendon (PT) were investigated by uniaxial tensile testing at two strain rates. Patella-PT-tibia complexes from freshly sacrificed skeletally immature and mature animals were loaded to failure at elongation rates of 20 and 200 mm/min. Both strain rate and skeletal maturity significantly affected failure mode, tangent modulus, and ultimate stress of the tendons, and hence are important considerations in the mechanical evaluation of porcine PT. Fourth, ACL reconstructions were performed using pretensions of 10 or 20 N in an in vivo porcine model with a specially designed load cell/telemetry system to monitor graft load. Graft pretension was seen to increase during fixation with interference screws. Following sacrifice at 4 weeks, tissues were mechanically, histologically, and biochemically analyzed. A pretension of 20 N resulted in a tissue more similar to the intrinsic ACL.Ph. D.
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Cardoso, Ana Isabel Soares. "Estabilização de taludes rochosos com redes metálicas pré-tensionadas : rock slope stabilization with pretensioned metalic meshes." Master's thesis, Departamento de Engenharia Civil, 2005. http://hdl.handle.net/10316/15659.
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Trent, Justin David. "Transfer Length, Development Length, Flexural Strength, and Prestress Loss Evaluation in Pretensioned Self-Consolidating Concrete Members." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/33161.
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The first objective of this thesis was to determine the effect of using self-consolidating concrete versus normal concrete on transfer and development lengths, and flexural strengths of prestressed members. Three small rectangular members were made, two cast with SCC mixes and one cast with a conventional mix, to determine the transfer length of each mix. Transfer lengths of both ends of each member were determined by measuring the concrete surface strains. The change in the transfer length was monitored by determining the transfer length of each member at prestress release, 7 days after release, and 28 days after release. All concrete mixes had lower than code determined transfer lengths at prestress release. Each concrete mix showed between a 12 to 56 percent increase in transfer length after 28 days. One SCC mix exceeded the ACI code stipulated 50 strand diameters 7 days after prestress transfer. The other SCC mix was consistently below the transfer length of the conventional concrete.
Separate development length members were cast in a stay-in-place steel form used for creating structural double tees. Each development length member was a stub tee. Iterative load testing was performed to determine the development length of each SCC and conventional mix. Development lengths for both SCC mixes were approximately 20 percent shorter than ACI and AASHTO code predictions. A development length for the conventional concrete was not determined due to non-repeating test data. The flexural strength of each member was determined during load testing. All concrete mixes achieved higher than the ACI predicted strengths.
The second objective of this thesis was to experimentally measure prestress losses and compare these experimental values to theoretical models. Crack initiation and crack reopening tests were performed to experimentally determine the prestress losses in each member. Three theoretical models were evaluated, the sixth edition PCI Design Handbook suggested model, a 1975 PCI Committee on Prestress Losses model, and the AASHTO LRFD prestress loss model. The crack initiation experimental values tended to be between 10 and 15 percent lower than theoretical models. In general, the crack reopening prediction of the effective prestress had a good correlation with theoretical models. This suggests crack reopening tests can be used as predictors of effective prestress, and as such, predictors of prestress losses in future experimental research. Additionally, the concrete type was shown to affect the prestress losses determined in the development length members. The SCC members tended to have higher effective prestress forces than the conventional concrete members, and thus had less prestress losses due to creep and shrinkage than the conventional concrete members.
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San, Martins Diego Angelus. "Confiabilidade de vigas pré-tracionadas de concreto protendido." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/116716.
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O presente trabalho trata da avaliação da confiabilidade de vigas pré-tracionadas de concreto protendido em relação ao estado limite último de flexão, segundo as recomendações da norma brasileira NBR 6118:2014. O crescimento da utilização de vigas protendidas nas edificações se justifica cada vez mais com o emprego de materiais mais eficientes e pela necessidade de estruturas mais leves e esbeltas. Esta pesquisa se limita à avaliação de vigas simplesmente apoiadas com seções retangulares e T e carregamento uniformemente distribuído ao longo do vão. Para a avaliação da capacidade resistente, foi utilizado um modelo simplificado que analisa a seção mais solicitada do elemento através de equações de equilíbrio, propriedades dos materiais e compatibilidade de deformações. A validação foi realizada a partir de ensaios experimentais e o modelo foi julgado adequado para a determinação do momento resistente de vigas pré-tracionadas de concreto protendido. O índice de confiabilidade das vigas em estudo foi determinado através do método de confiabilidade de primeira ordem (First Order Reliability Method – FORM), consolidado e bastante utilizado na obtenção da probabilidade de falha de estruturas. O valor de é obtido a partir do cálculo da distância mínima entre a superfície de falha e a origem das variáveis aleatórias padronizadas utilizando-se os recursos de minimização de uma planilha eletrônica. A verificação da influência que alguns parâmetros que regem o dimensionamento das vigas protendidas com aderência inicial exercem sobre o índice de confiabilidade foi realizada. Foram avaliados a resistência característica à compressão do concreto, a resistência característica de ruptura à tração da armadura de protensão, a esbeltez da viga e a relação entre o carregamento permanente e a carga total atribuída à viga. Também foi estabelecido um valor para o índice de confiabilidade considerado seguro igual a 3,8. Diante dos resultados, foi observado que a variação do índice de confiabilidade ocorreu de forma mais acentuada quando estudada juntamente com a variação da relação entre o carregamento. Porém vale destacar que em certos casos o índice de confiabilidade pode reduzir com o crescimento da resistência característica de ruptura à tração do aço de protensão e a consequente redução da área de armadura ativa.The present work deals with the evaluation of the reliability of pretensioned prestressed concrete beams regarding to the ultimate flexural limit state according to the recommendations of the Brazilian standard NBR 6118:2014. The increasing usage of prestressed beams in buildings is more and more justified by the usage of more efficient materials and the necessity of lighter weight and more slender structures. The research is limited in the evaluation of simply supported beams with rectangular and T cross sections and uniformly distributed loading. For the evaluation of the load capacity of the beams, it was used a simplified model that analyzes the maximum bending moment section of the element through equilibrium equations, material properties and compatibility of deformations. The validation was performed from experimental data and the model was judged suitable for the determination of the resistant moment of pre-tensioned prestressed concrete beams. The evaluation of the reliability index for each beam was carried out using the First Order Reliability Method - FORM, which is already consolidated and widely used when obtaining the probability of failure of structures. The value of is obtained from the calculation of the minimum distance between the surface of the failure and origin of standard random variables through the resource of minimization tools of a digital spreadsheet. The evaluation of the influence that some parameters, which govern the design of pretensioned prestressed beams, exercise on the reliability index was performed. The characteristic concrete compressive strength, the characteristic tensile strength of the prestressed reinforcement, the slenderness ratio of the beam and the ratio between dead load and total load were evaluated. It was also established a minimum acceptable value to the reliability index equal to 3.8. Given the results, it was observed that the variation of the reliability index occurred, in a more sharply way, when studied along with the variation of the ratio between the dead load and total load. But, in some cases, the reliability index can be reduced with the increasing of the characteristic tensile strength of the prestressed reinforcement and the consequent prestressed steel cross sectional area reduction.
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Roenker, Andrew T. "Testing of Torque-and-Angle High Strength Fasteners." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1490701582262578.
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Linares, San Román Juan José. "La nulidad de cosa juzgada fraudulenta como pretensión aparente para la revisión del fondo del caso." Master's thesis, Universidad Nacional Mayor de San Marcos, 2015. https://hdl.handle.net/20.500.12672/9336.
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El documento digital no refiere asesorPublicación a texto completo no autorizada por el autor
Busca determinar bajo parámetros objetivos como se viene utilizando el instituto de la nulidad de cosa juzgada fraudulenta que implica la existencia del fraude procesal, a fin de concluir si su empleo se condice con la normativa respectiva, esto es, que se busca combatir el fraude procesal, o si por el contrario si se pretende una nueva revisión de lo actuado en el proceso primigenio, es decir, el proceso en el que se emitió la resolución judicial que se impugna por fraude procesal, lo que ciertamente constituiría una clara expresión de la mencionada cultura de litigiosidad y por ende una causa de la demora en la resolución de los procesos judiciales. La existencia del fraude procesal ha motivado que se hayan diseñado instituciones a fin de combatir y desaparecer los efectos que el mismo ha generado en el proceso, a manera de ejemplo en Bolivia y Chile se ha establecido la revisión de sentencias a través de sendos recursos ante las Cortes Supremas de dichos países.
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Heistermann, Christine. "Behaviour of pretensioned bolts in friction connections : towards the use of higher strength steels in wind towers." Licentiate thesis, Luleå tekniska universitet, Byggkonstruktion och -produktion, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-17672.
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During recent years wind energy has established as an alternative to commonenergy sources. To advance its competitiveness, the costs for the constructionof a wind tower have to be reduced. One possible option is the use of frictiongrip joints instead of flange connections to join various tower segments in atubular steel tower. Additionally, the time necessary for installation andmaintenance of the bolts in these connections can be decreased, not only forimplementation in tubular towers but also in lattice towers.Four different bolt types have been investigated with respect to the ease ofinstallation and maintenance on the one hand and structural applicability on theother hand. The latter one is mainly defined by the behaviour of the pretensionforce in the bolts. Various influences on the reduction of clamping force areexperimentally checked, such as the type and thickness of coating, thethickness of the clamping package and external loading.The slip factor, which plays an important role in friction connections, isexperimentally achieved in a test on a double shear lap joint. The experiment isthoroughly examined by a finite element analysis, which models the interactionbetween bolts and plates.In various numerical analyses the influence of steel grade and possibleassembling tolerances on the resistance of a friction joint is investigated bothfor single and double shear lap joints.Shortages of EN 1993 parts 1-8 and 1-12 for the use of slip critical joints areidentified.På senare år har vindenergi blivit ett allt vanligare alternativ till de mertraditionella energikällorna. För att ytterligare stärka konkurrenskraftenbehöver installationskostnaden för vindkraftverken minskas. Ett sätt att göradetta är att använda friktionsförband istället för att sammanfoga flänsarna hosde olika segmenten i vindkraftverk uppbyggda av stålrör. Man kan dessutomminska den erforderliga tiden för att montera och underhålla skruvarna i dessaförband, vilket inte bara gäller för rörkonstruktioner utan även förvindkraftverk av fackverkstyp.Fyra olika sorters skruvar har undersökts, å ena sidan avseende hur enkla de äratt montera och underhålla, å andra sidan avseende den strukturellatillämpligheten. Den senare beror huvudsakligen på beteendet hosförspänningskraften i skruvarna. Olika sorters påverkan påfastspänningskraften har undersökts experimentellt, exempelvis ytskiktenstjocklek, klämlängden samt den påförda yttre lasten.Friktionskoefficienten vid glidning, som har en viktig roll i friktionsförband,har erhållits experimentellt genom försök med ett tvåskärigt skjuvförband.Försöken har utvärderats noga med FE-analyser, där interaktionen mellanskruvar och plattor har modellerats.Inverkan av vald stålsort samt utförandetoleranser har undersökts genomnumeriska analyser för både enskäriga och tvåskäriga skjuvförband.Brister i EN-1993 del 1-8 och 1-12 har identifierats vid användning av förbandsom är känsliga för glidning
Godkänd; 2011; 20110506 (chrott); LICENTIATSEMINARIUM Ämnesområde: Stålbyggnad/Steel Structures Examinator: Professor Milan Veljkovic, Institutionen för samhällsbyggnad och naturresurser, Luleå tekniska universitet Diskutant: Professor Carlos Rebelo, University of Coimbra, Portugal Tid: Fredag den 10 juni 2011 kl 10.00 Plats: F1031, Luleå tekniska universitet
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Attabi, Mohamed Mohamed Hussein. "La fissuration dans les systemes en beton precontraint." Paris 6, 1987. http://www.theses.fr/1987PA066246.
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Etude experimentale et theorique du comportement d'une membrure tendue de poutre soumise a flexion, pour determiner l'effet global de la combinaison dans un meme element d'armatures classiques et d'armatures precontraintes (precontrainte partielle), ces dernieres etant post-tendues, avec ou sans adherence, ou pretendues. Etude experimentale de l'adherence en fonction de la fissuration, et modelisation par elements finis en conditions planes
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Sotero, Garzón Martín A. "La acumulación de pretensiones a la luz de la Tutela Jurisdiccional efectiva Análisis de las reglas del Código Procesal Civil conforme a la Constitución de 1993." Derecho & Sociedad, 2015. http://repositorio.pucp.edu.pe/index/handle/123456789/118854.
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Es innegable la vital importancia que con lleva actualmente una acumulación de pretensiones, ello se desprende de manera clara de la finalidad principal que la misma tiene: evitar sentencias contradictoras, siendo que el presupuesto para la acumulación de pretensiones es que estas sean conexas entre sí. Por ello, en el presente artículo, el autor iniciará determinando qué significa una acumulación de pretensiones, para luego educarnos sobre cuáles son los fines constitucionales que subyacen a la misma, siendo para ello necesario desarrollar los tipos de acumulación que podrían presentarse, siendo finalmente posible determinar cómo deberá darse una acumulación de pretensiones, refiriéndose así a los requisitos recogidos en el Código Procesal Civil.
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Niekamp, Philip M. "Investigation of the Turn-of-Nut Installation Procedure for XTB-HX Fasteners." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1421921620.
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Momeni, Amir Farid. "Effect of concrete properties and prestressing steel indentation types on the development length and flexural capacity of pretensioned concrete members." Diss., Kansas State University, 2016. http://hdl.handle.net/2097/32682.
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Doctor of PhilosophyCivil Engineering
Robert J. Peterman
A study was conducted to determine the effect of different concrete properties and prestressing steel indentation types on development length and flexural capacity of pretensioned members. Wires and strands commonly used in the manufacturing of prestressed concrete railroad ties worldwide were selected for the study. Thirteen different 5.32-mm-diameter prestressing wire types and six different strands (four, seven-wire strands and two, three-wire strands) were used to cast prisms with a square cross section. The ratio of concrete to prestressed steel in the test prism’s cross section was representable of typical concrete railroad ties. Thus, geometrical and mechanical properties of test prisms were representative of actual ties in the railroad industry. To understand the effect of concrete-release strengths and slumps on development length, all parameters were kept constant in the prisms except concrete-release strength and slump. To manufacture prisms with different release strengths, all four wires/strands were pulled and detensioned gradually when the concrete compressive strength reached 3500 (24.13 MPa), 4500 (31.03 MPa), and 6000 (41.37 MPa) psi. To determine the effect of different slumps on development length, prisms with different slumps of 3 in. (7.6 cm), 6 in. (15.2 cm), and 9 in. (22.9 cm) were manufactured and all other parameters were kept constant in prisms. All prisms were tested in three-point bending at different spans to obtain estimations of development length based on type of reinforcement, concrete-release strength, and concrete slump. Lastly, a design equation was developed based on experimental data for prediction of development length. In the last phase of load tests, cyclic-loading tests were conducted on the prisms manufactured with wires to evaluate the bond performance of wires with different indentation types under cyclic loading. A total of 210 load tests, including 14 cyclic tests, were conducted. The monotonic-load tests revealed a large difference in the development length of pretensioned concrete members manufactured with different wire/strand types and different concrete-release strengths. Also, the cyclic-load tests revealed a significant difference in bond performance of different wire types under cyclic loading compared to monotonic loading.
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Denegri, Hacking Marianne. "La pretensión de responsabilidad análisis comparativo entre el companies act 2006 inglés y la ley general de sociedades peruana." THĒMIS-Revista de Derecho, 2011. http://repositorio.pucp.edu.pe/index/handle/123456789/107270.
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En el presente artículo, la autora analiza el tratamiento que la Ley General de Sociedades brinda al régimen de responsabilidad y las acciones legales que se pueden formular contra los directores de una sociedad, para luego recoger la novedosa regulación que el Common Lawha dado al respecto a través del Companies Act 2006. Así, se abordarán preguntas tales como ¿cuán lejos están nuestros sistemas?y ¿cuál genera una mayor efectividad deacción?.
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Moenne, Letelier Pamela María, and Alvarez Rodrigo Hernán Ríos. "Constructivismo: Tematización de la inseguridad y pretensión de objetividad en el Mercurio. Un análisis del periodo eleccionario 1999-2000." Tesis, Universidad de Chile, 2004. http://www.repositorio.uchile.cl/handle/2250/107415.
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Memoria (licenciado en ciencias jurídicas y sociales)No autorizada por los autores para ser publicada a texto completo
A grandes rasgos se podría sostener que estos son datos que rodean a todo aquel que quiera adentrarse en un análisis de El Mercurio, ergo, elementos que tuvimos en cuenta a la hora de encarar esta investigación. Ante tal escenario lo óptimo era contar con herramientas de análisis que nos permitieran llevar el enfoque a planos ricos en lo que al estudio se refiere, pretendiendo con ello alcanzar coherencia, tanto en lo teórico como en los resultados prácticos. Así el Constructivismo se presenta como un marco teórico altamente atractivo, principalmente porque a nuestro juicio satisface plenamente las pretensiones esbozadas precedentemente, presentando además un alto potencial en lo que a análisis del fenómeno de los mass media se refiere.
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Apolín, Meza Dante Ludwig. "Apuntes iniciales en torno a los límites en la aplicación del aforismo iura novit curia y la reconducción de pretensiones." IUS ET VERITAS, 2015. http://repositorio.pucp.edu.pe/index/handle/123456789/123452.
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González, Delgado Gabriel, Rincón Johanna Holz, Morante Augusto Ruiloba, Núñez Luis Miguel Silva, and Sobenes Katherine Torres. "¡Pero si es más caro reclamar! La class action: una alternativa para solucionar conflictos de intereses con pretensiones de reducida cuantía." IUS ET VERITAS, 2016. http://repositorio.pucp.edu.pe/index/handle/123456789/122623.
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Feres, Montecinos Andrés Javier. "Pretensión marítima boliviana y su factibilidad como reclamo ante la Corte Internacional de Justicia de la Haya : análisis histórico y jurídico." Tesis, Universidad de Chile, 2013. http://www.repositorio.uchile.cl/handle/2250/116251.
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Memoria (licenciado en ciencias jurídicas y sociales)El Trabajo de la presente memoria se abocará a demostrar y argumentar la factibilidad o infactibilidad de la demanda de Bolivia ante La Corte Internacional de Justicia de La Haya, sea acogida por esta Corte Internacional. Esta demanda responde a una centenaria pretensión de este país de obtener una salida al mar por territorio Chileno. Los sucesivos gobiernos de La Paz han insistido en su reivindicación marítima basando su argumentación, entre otros puntos, en desconocer la vigencia, validez y presunto incumplimiento del Tratado de Paz Amistad y Comercio de 1094, el cual en su momento estableció, de forma definitiva, los límites entre ambos países. Haciendo un giro en su histórica posición, Bolivia ha concurrido a La Haya invocado la existencia de una controversia con Chile por negarse sistemáticamente a ofrecer una salida soberana al mar, y que a través de acuerdos, la práctica diplomática y una serie de declaraciones atribuibles a los representantes del más alto nivel de Chile, Presidentes y Cancilleres, se habría comprometido a otorgar esa salida con soberanía al Mar Pacífico.
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Habarka, Ondrej. "Úprava nanomanipulátoru používaného v elektronovém mikroskopu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254391.
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Cílem této diplomové práce je zlepšit chování nanomanipulátoru, používaného v elektronovém mikroskopu, při vykonávaní nejmenších kroků pohybu. První částí je analýza mechanismu za účelem nalezení možných řešení problému. Dále se práce zabývá testováním řešení jako je optimalizace tuhosti předepínacích pružin mechanismu anebo změna mazání šnekového převodu mechanismu. Výsledkem práce je výběr nejvhodnějšího řešení problému na základě výsledků testů a následná modifikace nanomanipulátoru.
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Larson, Kyle Hatch. "Evaluating the time-dependent deformations and bond characteristics of a self-consolidating concrete mix and the implication for pretensioned[sic] bridge applications." Diss., Manhattan, Kan. : Kansas State University, 2006. http://hdl.handle.net/2097/219.
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Gurpilhares, Giovana Gleice Gomes dos Santos. "Prescrição da pretensão executória: uma discussão sobre o trânsito em julgado da sentença condenatória para acusação." Pontifícia Universidade Católica de São Paulo, 2007. https://tede2.pucsp.br/handle/handle/7496.
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Previous issue date: 2007-05-09Faculdades Integradas Tereza D'Ávila
This work is focused on the initial term of the executory pretension prescription, due to the article 112, inc. I, part I of the Penal Code, which establishes the day the condemnatory sentence is passed on, for accusation. This term, several times prevents the State from fully executing the penalty imposed, due to the extinction of the punishability by prescription. This happens, for the prescriptional term starts with the definite sentence for the accusation, but this can only execute the penalty after the sentence becomes definite for both parties. Aiming to understand the rate and show the consequences of this norm, the origin and evolution of the right of the State to punish, the purposes of the penalty, the extinctive causes of the punishability anticipated in the Penal Code, the origin and evolution of the prescription in the compared law, the compared law on the subject and some constitutional principles are approached. Besides that, some criminal processes and bills that direct or indirectly deal with this issue were analyzed. It was verified that the situation arisen in function of this initial term represents a very high disproportion between the parties, since in the conflict between the jus puniendi pertaining the State and the jus libertatis pertaining the defendant, a great disadvantage of the first one in relation to the second occurs. The constitutional principle of equality is flagrantly violated, for art. 5 of the Federal Constitution of 1988 declares that all people are equal under the law, with no distinction of any nature and this is also applied to the State, as office holder of the jus puniendi. In the case herein discussed the handling is unequal, with no justification for that
O presente trabalho tem como objetivo discutir o termo inicial da prescrição da pretensão executória, previsto no art.112, inc. I, 1ª parte do Código Penal, que estabelece o dia em que transita em julgado a sentença condenatória, para acusação. Este termo, muitas vezes, faz com que o Estado fique impedido de executar, de forma plena, a pena imposta, em decorrência da extinção da punibilidade pela prescrição. Isto ocorre, pois o prazo prescricional se inicia com o trânsito em julgado para acusação, mas a mesma só pode executar a pena depois do trânsito em julgado da sentença condenatória para ambas as partes. Visando entender a razão, e mostrar as conseqüências desta norma, foram abordadas a origem e evolução do direito de punir do Estado, as finalidades da pena, as causas extintivas da punibilidade previstas no Código Penal, a origem e evolução da prescrição no direito comparado e pátrio, o momento da inclusão deste dispositivo no ordenamento pátrio, o direito comparado sobre o assunto e alguns princípios constitucionais. Além disto foram analisados alguns processos criminais e alguns projetos de lei, que de maneira direta ou indireta, versam sobre a problemática levantada. Constatou-se que a situação gerada em decorrência deste termo inicial representa uma desigualdade muito grande entre as partes, uma vez que no conflito entre o jus puniendi pertencente ao Estado e o jus libertatis pertencente ao réu, há uma grande desvantagem do primeiro em relação ao segundo. O principio constitucional da igualdade, é flagrantemente violado, pois o art. 5º da Constituição Federal de 1988 determina que "todos são iguais perante a lei, sem distinção de qualquer natureza" e isso se aplica também ao Estado, como titular do jus puniendi. No caso em tela o tratamento é desigual, sem que haja qualquer justificativa para tal
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Ptáček, Petr. "Termálně-strukturální analýza válce čtyřdobého spalovacího motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254374.
Full textAbstract:
This diploma thesis is focused on creating a finite element method model of a four-stroke engine with a purpose to determine an impact on cylinder bore distortion caused by several types of loading. Introduction of this work covers research of possibilities in modelling thermal-structural analysis of cylinder liner and verifications of the analysis results. An Ansys model was further created and cylinder liner radial deformation caused by head bolts tightening and thermal loading coming from combustion was determined. Finally, a whole engine working cycle was simulated with a gas pressure loading and its final impact on the total cylinder liner radial deformation was defined.
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Climent, Agustin Marta. "Resección con pretensión curativa del cáncer gástrico. Influencia de las complicaciones postoperatorias sobre la supervivencia y de la pérdida de peso sobre la calidad de vida." Doctoral thesis, Universitat Autònoma de Barcelona, 2017. http://hdl.handle.net/10803/405317.
Full textAbstract:
La presente tesis doctoral es el fruto de tres líneas de investigación clínica simultáneas sobre distintos aspectos de la cirugía del cáncer gástrico, que pueden tener un impacto a medio y largo plazo sobre la supervivencia y la calidad de vida de los pacientes sometidos a esta cirugía. Los resultados de las dos primeras líneas de investigación, una focalizada en el análisis del posible impacto negativo de las complicaciones postquirúrgicas sobre la recidiva y la supervivencia después de una cirugía curativa y la segunda sobre la relación de la pérdida de peso que frecuentemente se observa en pacientes después de la resección gástrica con la calidad de vida relacionada con la salud, han sido recientemente publicadas en una prestigiosa revista de cirugía oncológica (Eur J Surg Oncol, IF 2,906).
El primer artículo reúne una serie de 271 pacientes con resección curativa por cáncer gástrico, en el que se analiza el posible impacto negativo de las complicaciones en general y de las complicaciones sépticas sobre el riesgo de desarrollar recidiva de la enfermedad y sobre la supervivencia. Se trata de un estudio en el que la descripción de las complicaciones fue muy meticulosa, y a diferencia de estudios similares en cáncer colorrectal y cáncer gástrico, no pudimos confirmar el impacto negativo de las complicaciones.
El segundo artículo analiza la posible asociación entre una mayor pérdida de peso durante el periodo postoperatorio tras una gastrectomía total o subtotal y la calidad de vida relacionada con la salud. Confirmamos que los pacientes con más de un 10% de pérdida de peso presentan un deterioro mayor de la calidad de vida y mayor prevalencia de síntomas que pacientes con menor pérdida de peso. Estos datos son muy relevantes dada la escasa información en la literatura sobre este tema, aunque no es posible de momento confirmar una causalidad entre la pérdida de peso y el deterioro de la calidad de vida. En un futuro próximo, pretendemos analizar en profundidad algunos aspectos, como la malabsorción intestinal, que podrían justificar esta pérdida de peso y en definitiva, del mayor porcentaje de diarreas en este grupo de pacientes.
El tercer proyecto que complementa esta tesis doctoral, todavía no publicado, investiga la salud ósea de los pacientes sometidos a gastrectomía por cáncer gástrico y la efectividad de suplementos de vitamina D a elevadas dosis en aquellos pacientes que presentan bajos niveles de 25(OH)D. Los resultados muestran insuficiencia de vitamina D en casi la totalidad de pacientes e hiperparatiroidismo secundario en la mitad de ellos. La densitometría practicada mostró osteoporosis en la mitad de la serie, y se registraron fracturas por fragilidad en el 45% de los pacientes. Después de 3 meses de suplementación con vitamina D, el 87,5% de los pacientes alcanzaron valores normales de 25(OH)D. Estos datos son muy interesantes porque a pesar de que ya ha sido descrita la pérdida de densidad mineral ósea como uno de los efectos adversos que experimentan los pacientes después de una resección gástrica por cáncer, no existen recomendaciones específicas sobre la necesidad de suplementación con calcio y vitamina D en este grupo de pacientes.
Los tres estudios proporcionan información importante que puede ser muy relevante a la hora de proponer medidas que puedan mejorar la evolución postoperatoria de los pacientes operados de cáncer gástrico.This thesis is the result of three simultaneous lines of clinical research on different aspects of gastric cancer surgery, which may influence the survival and quality of life of long-term survivors undergoing this surgery. The results of the first two lines of research, one focused on the analysis of the possible negative impact of postoperative complications on relapse and survival after curative surgery, and the second on the relationship of weight loss frequently observed in patients after gastric resection with health-related quality of life, have recently been published in a prestigious journal of oncologic surgery (Eur J Surg Oncol, IF 2,906). In the first article, we assessed the impact of complications on recurrence and survival after curative gastric cancer resection. This study of 271 patients did not provide evidence supporting that either postoperative complications classified as Clavien Dindo ≥ II or sepsis or intraabdominal sepsis had a negative effect on tumour recurrence and overall survival. This was a study in which the description of the complications was very meticulous, and, unlike similar studies in colorectal cancer and gastric cancer, we could not confirm the negative impact of complications. The second article analysed the relation between health-related quality of life and body weight loss in surviving patients two years after curative gastric cancer resection. We confirmed that patients with more than 10% of weight loss reported more symptoms compared with those patients with less body weight loss. These findings suggest some connection between weight loss and quality of life, although it was not possible to confirm a causal relationship, and they make us aware of the need for potential early interventions that could minimise this problem. Further studies are required to analyse some aspects in more depth, such as intestinal malabsorption, which could justify this weight loss and the higher percentage of diarrhoea in this group of patients. The third project that forms this doctoral thesis, still unpublished, investigated bone health in long-term survivors after gastric cancer resection and the effectiveness of high-dose vitamin D supplementation in patients with low levels of 25 (OH) D. The results showed insufficient vitamin D in almost all patients and secondary hyperparathyroidism in half of them. The main consequence of these bone metabolism disorders is the high prevalence of fractures, present in almost half of patients investigated. After 3 months of vitamin D supplementation, 87.5% of patients achieved normal values of 25 (OH) D. This data is very relevant due to the fact that loss of bone mineral density has already been described as one of the adverse effects that patients experience after a gastric cancer resection but that there are currently no specific recommendations for calcium and vitamin D supplementation in this group of patients. The three studies provide important information and suggest some measures that may improve the postoperative course of patients undergoing gastric cancer resection.