DFM(A)- aspects for an sma connector design

In this research, manufacturability analysis is made for an SMA connector. Analysis and aspects of applying virtual prototyping for an SMA connector design and manufacturing are also investigated. Special questionnaires for the component and machining are made in order to enable necessary information to ensure DFM(A) –aspects of products. The aspects of easy manufacturing for machining the SMA connector are collected. Material selection is discussed, and manufacturing stages of prototype manufacturing are presented. The main focus of this research is on prototype manufacturing, but also aspects considering volume production are discussed. A special purpose SMA connector is designed for printed circuit board edge mounting.

Kalibrointimenetelmä planaaristen siirtojohtojen mittaamiseen

Tässä diplomityössä tutkittiin TRL-kalibroinnin käyttämistä tasomaisten siirtojohtojen sähköisten parametrien määrittämisessä taajuusalueella 0,3 – 12 GHz. Työssä perehdyttiin TRL-kalibroinnin käyttämiseen piirianalysaattorilla toteutettujen mittauksien mittauskalibrointiin sekä kalibrointiin tarvittavien kalibrointistandardien mitoittamiseen. Kalibrointistandardit suunniteltiin ja toteutettiin sekä mikroliuska- että liuskajohdoille, joiden toiminnallisuutta tarkasteltiin sekä taajuustason että aikatason mittausten avulla. Työssä perehdyttiin myös kalibrointistandardien liityntärajapinnan suunniteluun ja toteuttamiseen. Saatujen tulosten perusteella voitiin osoittaa mikroliuskajohtokitin soveltuvan hyvin mittauskalibroinnin toteuttamiseen tarkoissa mittaussovelluksissa.

Development and Analysis of a Compact Dual-Band Coplanar Antenna

The coplanar wave guide is an attractive device in microwave integrated circuits due to its uniplanar nature, ease of fabrication and low production cost. Several attempts are already done to explore the radiating modes in coplanar wave guide transmission lines. Usually coplanar wave guides are excited by an SMA connector with its centre conductor connected to the exact middle of the centre strip and the outer ground conductor to the two ground strips. The mode excited on it is purely a bound mode. The E-field distribution in the two slots are out of phase and there for cancels at the far field. This thesis addresses an attempt to excite an in phase E-field distribution in the two slots of the co planar wave guide by employing a feed asymmetry, in order to get radiation from the two large slot discontinuities of the coplanar waveguide. The omni directional distribution of the radiating energy can be achieved by widening the centre strip.The first part of the thesis deals with the investigations on the resonance phenomena of conventional coplanar waveguides at higher frequency bands. Then an offset fed open circuited coplanar waveguide supporting resonance/radiation phenomena is analyzed. Finally, a novel compact co planar antenna geometry with dual band characteristics, suitable for mobile terminal applications is designed and characterized using the inferences from the above study.

Mast cells, TGF-beta 1 and alpha-SMA expression in IgA nephropathy

IgA nephropathy (IgAN) is a kidney disease with a varying renal prognosis. Recently, many studies have demonstrated that renal alpha-smooth muscle actin (alpha-SMA) and transforming growth factor (TGF-beta 1) expression, as well interstitial mast cell infiltrates could represent a prognostic marker in several renal diseases. The aim of our study was to analyze the prognostic value of mast cell, TGF-beta 1 and alpha-SMA expression in IgAN. A survey of the medical records and renal biopsy reports of 62 patients with a diagnosis of IgAN followed-up from 1987 to 2003 was performed. The mean follow-up time was 74.7 +/- 50.0 months. The immunohistochemical studies were performed using a monoclonal antibody anti-human mast cell tryptase, a polyclonal antibody anti-human TGF-beta 1, and a monoclonal antibody anti-human alpha-SMA. An unfavorable clinical course of IgAN was related to interstitial mast cell infiltrates and alpha-SMA expression in the tubulointerstitial area. Expression of glomerular TGF-beta 1 and alpha-SMA, and interstitial TGF-beta 1 is not correlated with clinical course in IgAN. In conclusion, the increased number of mast cells and higher alpha-SMA expression in the tubulointerstitial area may be predictive factors for the poor prognosis of patients with IgAN.

Tirant, Yvain i Lancelot, presoners d'amor : L'amor com a connector entre els herois de Chrétien de Troyes i Joanot Martorell

Estudi de tipus comparatiu entre l'amor que experimenten els herois de Chrétien de Troyes i Tirant lo Blanc, i que ens porta a descobrir les hipertextualitats existents referents al tema amorós entre aquestes novel·les separades per 300 anys.

Implementación de un SMA de negociación basado en subastas electrónicas

El presente proyecto se centra en el ámbito del comercio electrónico en la modalidad de agentes de subasta (auction bots). Lo que se pretende es llevar a cabo todo el proceso de negociación de las subastas sin intervención humana, por medio de sus agentes representantes.

Dynamic expression of desmin, α-SMA and TGF-β1 during hepatic fibrogenesis induced by selective bile duct ligation in young rats

We previously described a selective bile duct ligation model to elucidate the process of hepatic fibrogenesis in children with biliary atresia or intrahepatic biliary stenosis. Using this model, we identified changes in the expression of alpha smooth muscle actin (α-SMA) both in the obstructed parenchyma and in the hepatic parenchyma adjacent to the obstruction. However, the expression profiles of desmin and TGF-β1, molecules known to be involved in hepatic fibrogenesis, were unchanged when analyzed by semiquantitative polymerase chain reaction (RT-PCR). Thus, the molecular mechanisms involved in the modulation of liver fibrosis in this experimental model are not fully understood. This study aimed to evaluate the molecular changes in an experimental model of selective bile duct ligation and to compare the gene expression changes observed in RT-PCR and in real-time quantitative PCR (qRT‐PCR). Twenty-eight Wistar rats of both sexes and weaning age (21-23 days old) were used. The rats were separated into groups that were assessed 7 or 60 days after selective biliary duct ligation. The expression of desmin, α-SMA and TGF-β1 was examined in tissue from hepatic parenchyma with biliary obstruction (BO) and in hepatic parenchyma without biliary obstruction (WBO), using RT-PCR and qRT‐PCR. The results obtained in this study using these two methods were significantly different. The BO parenchyma had a more severe fibrogenic reaction, with increased α-SMA and TGF-β1 expression after 7 days. The WBO parenchyma presented a later, fibrotic response, with increased desmin expression 7 days after surgery and increased α-SMA 60 days after surgery. The qRT‐PCR technique was more sensitive to expression changes than the semiquantitative method.

Ejemplar de religiosas : Vida de la M. R. M. Sor María Josefa Lina de la Sma. Trinidad, fundadora del Convento de la Purísima Concepción en la Ciudad de San Miguel...

UANL

Sermón predicado por el Sr. Pbro. don Gabino Chávez al día 2 de julio de 1892 en la fiesta que se celebra anualmente a la Madre Sma. de la Luz en la Santa Iglesia Catedral de León

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Historia de la aparición de la Sma. Virgen María de Guadalupe en México : desde el año de MDXXXIal de MDCCCXCV.

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Disertación histórica sobre la aparición de la portentosa imagen de María Sma. de Guadalupe

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