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Telejornalismo regional : identidade e representações /Silva, Adriana Fernandes da. January 2005 (has links)
Orientador: Claudio Bertolli Filho / Banca: Ana Sílvia David Médola / Banca: Sidney Ferreira Leite / Resumo: Identificam-se as representações sociais relacionadas à formação identitária da região de cobertura da TV TEM, afiliada da Rede Globo no interior de São Paulo, com sede em Bauru, por meio do conteúdo do telejornal regional Tem Notícias. Apresentam-se as estratégias de inserção da nova emissora, caracterizado por um incipiente processo de harmonização entre a empresa de mídia e seus diferentes públicos. Destacam-se ainda os diferentes períodos de desenvolvimento do telejornalismo regional, a partir de um resgate histórico da presença da TV em Bauru. / Abstract: The social representations related to the identity formation of the TV Tem coverage area, in the interior of the state of São Paulo, are identified. The analysis uses the content of the regional telejournal news Tem Notícias to recognize them. TV Tem is one of the Rede Globo's television network affiliate station, located in Bauru, SP. The new regional broadcasting station makes use of many insertion strategies and they are presented. These skills characterize an incipient process of harmonization between the different kinds of public and the media group. Distinct periods of the regional television development are put in relief, from the historical review of television stations existence in Bauru. / Mestre
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Biotic and abiotic effects on biogeochemical fluxes across multiple spatial scales in a prairie stream networkTrentman, Matthew T. January 1900 (has links)
Master of Science / Division of Biology / Walter K. Dodds / Understanding the variability of ecological processes across spatial scales is a central issue in ecology, because increasing scale is often associated with increasing complexity. In streams, measurements of biogeochemical fluxes are important for determining ecosystem health and the downstream delivery of nutrients, but are often collected at scales with benthic areas measured in spatial areas from ~10 cm[superscript]2 to ~100 m[superscript]2 (referred to here as patch and reach, respectively), which are smaller than the scale that management decisions are made. Both biotic and abiotic factors will be important when attempting to predict (i.e. scale) biogeochemical rates, but few studies have simultaneously measured rates and their primary drivers at different spatial scales. In the first chapter, I used a conceptual scaling framework to evaluate the ability to additively scale biogeochemical rates by comparing measurements of ecosystem respiration (ER) and gross primary production (GPP) from patch to reach-scales across multiple sites over a two-year period in a prairie stream. Patch-scale measurements with and without fish (biotic factors) and abiotic factors measured simultaneously with metabolic rates suggest that abiotic conditions are stronger drivers of these rates. Patch-scale rates significantly overestimated reach rates for ER and GPP after corrections for habitat heterogeneity, temperature and light, and a variety of stream substrata compartments. I show the importance of determining abiotic and biotic drivers, which can be determined through observational or experimental measurements, when building models for scaling biogeochemical rates. In the second chapter, I further examined patch-scale abiotic and biotic drivers of multiple biogeochemical rates (ER, GPP, and ammonium uptake) using path analyses and data from chapter 2. Total model-explained variance was highest for ER (65% as R[superscript]2) and lowest for GPP and ammonium uptake (38%). Fish removal directly increased ammonium uptake, while all rates were indirectly affected by fish removal through changes in either FBOM and /or algal biomass. Significant paths of abiotic factors varied with each model. Large-scale processes (i.e. climate change and direct anthropogenic disturbances), and local biotic and abiotic drivers should all be considered when attempting to predict stream biogeochemical fluxes at varying spatial scales.
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Output Bandwidth Limitations of Basestation Power Amplifier Design and Its Implementation Using Doherty AmplifierJanuary 2014 (has links)
abstract: This thesis is a study of Bandwidth limitation of basestation power amplifier and its Doherty application. Fundamentally, bandwidth of a power amplifier (PA) is limited by both its input and output prematch networks and its Doherty architecture, specifically the impedance inverter between the main and auxiliary amplifier. In this study, only the output prematch network and the Doherty architecture follows are being investigated. A new proposed impedance inverter in the Doherty architecture exhibits an extended bandwidth compared to traditional quarterwave line.
Base on the loadline analysis, output impedance of the power amplifier can be represented by a loadline resistor and an output shunt capacitor. Base on this simple model, the maximum allowed bandwidth of the output impedance of the power amplifier can be estimated using the Bode-Fano method. However, since power amplifier is in fact nonlinear, harmonic balance simulation is used to loadpull the device across a broad range of frequencies. Base on the simulated large signal impedance at maximum power, the prematch circuitry can be designed. On a system level, the prematch power amplifier is used in Doherty amplifier. Two different prematch circuitries, T- section and shunt L methods are investigated along with their comparison in the Doherty architecture at both back off power and peak power condition. The last section of the thesis will be incorporating the proposed impedance inverter structure between the main and auxiliary amplifiers.
The simulated results showed the shunt L prematch topology has the least impedance dispersion across frequency. Along with the new impedance inverter structure, the 65% efficiency bandwidth improves by 50% compared to the original impedance inverter structure at back off power level. / Dissertation/Thesis / Masters Thesis Electrical Engineering 2014
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Sledování dlouhodobých změn a hodnocení vývojových trendů krajinného prostředí ovlivněném výstavbou JETE / Pursuit secular changes and evaluation of trends in country around JETE and influence JETE over countryPOLÁČKOVÁ, Stanislava January 2008 (has links)
The content in my graduation theses is characteristic of villages and poeple in outbuildings , which disappeared by the development JETE. I wrote about trend in number of houses and poeple in the time 1869 {--} 2001 in comparision with Southbohemia region, district around Č. Budějovice, city Týn n. Vltavou and village Temelín, which is nearly JETE. People compare target the age, nationality and economy power in the country around JETE. I wanted to desribe structure of settled outbuildings. The trend of the country target the farmland, status quo around JETE, i.c. reconstruction of castle Býšov in distillery, characteristic park of castle, valuation of landscape and coefficient ecological stability.
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Augmented Reality On Radio Base Station MaintenanceHao, Zhong January 2012 (has links)
Radio base station(RBS) is the key infrastructure in wireless network and the main product of Ericsson. To improve the efficiency and success rate of RBS maintenance is therefore necessary and beneficial to Ericsson. Augmented reality is a promising solution by annotating computer generated guiding information on real world to enhance the information received during the maintenance. This thesis developed a workable AR application for RBS to evaluate the feasibility and difficulty of applying AR on RBS. Based on Android platform, the application used Vuforia from Qualcomm and Unity as tracking and rendering package respectively. Tracked result was imported to Unity and processed by low pass filters to remove noise. Filtered data was then used to build a distributed world coordinate frame array to cover the entire RBS panel. On this distributed world coordinate frame array, digital contents such as audio, animation were placed and controlled by a task state machine. Drove by the user control in user interface layer, the task state machine provide a flexible task scheduling scheme for task navigation. At last, digital contents and real time video captured by phone camera were synthesized and rendered on the cellphone screen. The result presented a practicable AR solution for RBS maintenance and reveals the advantages and disadvantages of deploying AR technology for RBS. Certain suggestions were also described based on the development.
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3D LOCALIZATION FOR LAUNCH VEHICLE USING COMBINED TOA AND AOAKwon, Soonho, Kim, Donghyun, Han, Jeongwoo, Kim, Dae-Oh, Hwang, Intae 10 1900 (has links)
Generally, a ground telemetry station for launch vehicle (LV) has tracking function only; therefore, position measurements depend on radar. Time of arrival (TOA) and angle of arrival (AOA) are typical location techniques for emitting targets. In this paper, we propose a Combined TOA and AOA localization method for LV using two ground stations. When transmitter (Tx) time is not known, it is necessary to make virtual onboard timer for TOA estimation. The virtual onboard timer generates time stamps of streaming frame according to data rate. First station which is located in space center has no tracking function. But it can generate the virtual onboard timer. Second station has tracking function, so it generates AOA information. By solving sphere equation(s) of TOA from at least one station and a line equation of AOA, target position in three-dimensions (3D) can be obtained. We confirm the localization performance by means of comparison with an on-board GPS of a real launch mission.
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Water quality management at Halfway on the Sishen-Saldanha railVan der Schyff, Karlien 10 February 2014 (has links)
M.Sc. (Geography) / Please refer to full text to view abstract
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Design and Development of Perpetual Environmental Station (PES1)Mathanlal, Thasshwin January 2017 (has links)
The Perpetual Environmental Station (PES1), designed and developed is robust, modularenvironmental station with a multitude of sensors, to study the precursors of Earthquakes and todisseminate a long term, quality data of various atmospheric parameters. The PES1 has beendesigned based on the Earthquake precursors, postulated in various research articles. Most ofthese postulated precursors have been tested in laboratory environments and PES1 will be thefirst station to validate these precursors on field. The PES1 has been designed from a modularpoint of view, considering perpetuity where modules can be easily added, replaced, or upgradedsuch that a long-term functioning of the system is guaranteed. The PES1 will be installed inIceland where the seismic activity is quite high, serving as an ideal test location.The thesis work outlines the precursors of Earthquakes and the seismicity in Iceland, where thePES1 is to be installed. The design and development of the PES1 is described from the hardwareand software point of view, with specifications of each sensor used in the Environmental Station.
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The perceptions of station commissioners of Waterberg District regarding the suicide prevention workshops targeted at police officersMashela, Sehlakwana Asnath 05 December 2012 (has links)
Appendices A-D were not provided by the author. The goal of the study was to explore the perceptions of the station commissioners of Waterberg District regarding the Suicide Prevention Workshops targeted at police officers. The study was conducted with the station commissioners of Waterberg District in Limpopo. The population in this study was composed of 15 station commissioners who were regarded as the sample due to the fact that the population is small. The research approach used in the applied study was a qualitative approach. A semi-structured interview schedule was used to collect data from the station commissioners in order to uncover their perceptions regarding the Suicide Prevention Workshops. A theoretical background about suicide in general and police suicide was provided through a literature study. In the literature study the background information about factors contributing towards police suicide were indicated, together with methods used to commit suicide. Causes of suicide in general as compared to those of police members, were also clarified. The focus in the literature was also on gender whereby an indication was mentioned about who exactly are at risk of committing suicide. The attitude of police officers and the society’s expectations and perceptions regarding police members has been discussed. The empirical study focused on the perceptions of station commissioners of Waterberg District in Limpopo regarding the Suicide Prevention Workshops targeted at police officers. A semi-structured one-on-one interview was held with each station commissioner on individual basis where by questions were asked about his or her perception of the Suicide Prevention Workshops. The findings of the study revealed that station commanders appreciate the role played by social workers, chaplains and psychological services in presenting suicide prevention programmes to police officers. They indicated that at some point they fail to nominate police officers to attend the workshops because some of the subordinates are not cooperative and they might even submit sick notes in order to be excused from attending. It was also reported that if there is a shortage of personnel due to other core business of SAPS, police officers might not be nominated. Based on the findings of the study, conclusions and recommendations were made with regard to how the suicide prevention program and workshops can be improved in SAPS. Copyright / Dissertation (MSW)--University of Pretoria, 2013. / Social Work and Criminology / unrestricted
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ENERGY EFFICIENT ADAPTIVE SECTOR-BASED USER CLUSTERING ALGORITHM FOR CELLULAR NETWORKKassa, Hailu Belay, Aredo, Shenko Chura, Menta, Estifanos Yohannes 11 1900 (has links)
In this paper, we propose an adaptive and multi-sector-based user clustering algorithm which
increases energy efficiency in a cellular network. Adaptive sectoring with dynamically changing
sector angles is illustrated with a number of randomly distributed mobile stations. Transmitted power
is equally shared by sectors before adaptive user clustering. The sector angles vary from 30 to 360
degrees by merging neighboring sectors and a sector is switched off till the user density exceeds a
threshold (Td). The Td value is computed from the total number of users that the cell can
accommodate over the area of the cell. The sectors with less than Td density exhibits transmit power
which approaches to zero or sleeping state and so that the cumulative power is saved. Simulation
results show that an average of 45% to 50% energy can be saved in 10 iterations.
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