Load Spectrum
Mostrando 13-24 de 42 artigos, teses e dissertações.
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13. Identificação e caracterização de peptídeos miméticos dos antígenos de Mycobacterium leprae por phage display
CHAPTER I: Leprosy presents a clinical spectrum that spans from a strong cellular mediated immunity and bacili growth control of Mycobacterium leprae at the tuberculoid pole to a poor T cell immunity with extensive bacterial load at the lepromatous pole. The antigenic profile characterization in both clinical forms is a necessary step for discover and evalua
Publicado em: 2007
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14. Detecção e diagnóstico de falhas em motores de indução
This main purpose of this work is to design and implement a system to detect and diagnose electrical faults (stator inter-turn short circuit and broken rotor bars) and mechanical faults (unbalance and shaft misalignments) for three phase induction machines. This approach starts by obtaining the best patterns for fault detection and symmetrical models for the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/07/2005
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15. RADIO RESEARCH MANAGEMENT TECHNIQUES FOR HIERARCHICAL CELL SYSTEMS / ESTUDO DE TÉCNICAS DE GERÊNCIA DE RECURSOS DE RÁDIO PARA SISTEMAS CELULARES HIERARQUIZADOS
Multilayer cell systems are useful to accommodate high traffic densities while still satisfying the QoS requirements. These systems combine the advantages of microcellular and macrocellular systems which are: the increase of system capacity and the reduction of the number of handoffs, hence decreasing the signaling load. This work address design aspects such
Publicado em: 2003
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16. Correlação de estrias de fadiga com espectro de cargas em liga de Al aeronáutica SAE-AMS 7475 T 7351. / Correlation of fatigue striation spacing to loading history in aeronautic Al alloy, AMS 7475 T7351.
This work discusses the relationship between striation spacing, i.e. the microscopic crack propagation rate, SL (local) e SP (projected), as measured in post-mortem fractographic inspection of fatigue fractured surfaces, and the macroscopic crack propagation rate, da/dN, as monitored during fatigue crack growth tests. Compact tensile specimens C(T) were extr
Publicado em: 2003
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17. Cálculo da Frequência Instantânea Cardíaca Utilizando o Algoritmo LMS e uma Interface de Aquisição de Dados / CALCULATION OF THE CARDIAC INSTANTANEOUS FREQUENCY USING ALGORITHM LMS AND AN INTERFACE OF ACQUISITION OF DATA
In this work we consider the calculation of the heart instantaneous frequency from the estimate of the weights, gotten through LMS algorithm, (Least Mean Squares) when functioning as spectrum analyzer. It is known that the electrocardiogram (ECG) is a signal that is characterized for a repetitive regularity, which can be called quasi-periodicity. We explore
Publicado em: 2002
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18. Estudo da liga de aluminio-zinco como filtração alternativa para a radiação X
The aim of this research was evaluate the effects of the alternative filtration of the aluminumlzinc alloy in dental X rays machines, in relation to the spectrum of energy , the X ray dose, the contrast alterations and the image quality. This study was accomplished comparing the conventional aluminum filter with several thickness of the aluminumlzinc alloy f
Publicado em: 2000
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19. Analise dinamica modal espectral de porticos planos
This work presents the modal spectral dynamic analysis of plane framed structures. The Seismic Force is the dynamic excitation acting on structures. A response spectrum, namely, a plot of the maximum response (maximum displacement, velocity, acceleration, or any other quantity of interest) to a specified seismic load function for all possible single degree o
Publicado em: 1996
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20. Aortic Input Impedance during Nitroprusside Infusion: A RECONSIDERATION OF AFTERLOAD REDUCTION AND BENEFICIAL ACTION
Beneficial effects of nitroprusside infusion in heart failure are purportedly a result of decreased afterload through “impedance” reduction. To study the effect of nitroprusside on vascular factors that determine the total load opposing left ventricular ejection, the total aortic input impedance spectrum was examined in 12 patients with heart failure (ca
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21. A simple relationship between viral load and survival time in HIV-1 infection
Despite important recent insights into the short-term dynamics of HIV-1 infection, our understanding of the long-term pathogenesis of AIDS remains unclear. Using an approach that places rapid progressors, typical progressors, and nonprogressors on a single clinical spectrum of disease progression, we quantitate the previously reported relationship between vi
The National Academy of Sciences.
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22. Measurement of hand tremor induced by industrial exposure to metallic mercury.
Hand tremor due to industrial exposure to metallic mercury vapour was recorded in 26 exposed and 25 non-exposed male workers by an accelerometer attached to the dorsum of the hand. The subjects were instructed to hold the hand and the forearm in the same position first without and then with a load of 1250 g supported by the hand. Analysis of the records show
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23. Response of Foot-and-Mouth Disease Virus to Increased Mutagenesis: Influence of Viral Load and Fitness in Loss of Infectivity
Passage of foot-and-mouth disease virus (FMDV) in cell culture in the presence of the mutagenic base analog 5-fluorouracil or 5-azacytidine resulted in decreases of infectivity and occasional extinction of the virus. Low viral loads and low viral fitness enhanced the frequency of extinction events; this finding was shown with a number of closely related FMDV
American Society for Microbiology.
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24. Vaccination with Inactivated Virus but Not Viral DNA Reduces Virus Load following Challenge with a Heterologous and Virulent Isolate of Feline Immunodeficiency Virus
It has been shown that cats can be protected against infection with the prototypic Petaluma strain of feline immunodeficiency virus (FIVPET) using vaccines based on either inactivated virus particles or replication-defective proviral DNA. However, the utility of such vaccines in the field is uncertain, given the absence of consistent protection against antig
American Society for Microbiology.