Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 49 for “"PMd"”.
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A formative evaluation of the UCT PMD Programme
Personal mobile devices (PMDs) such as tablets (also referred to as tablet computers or tablet pc) have become important educational technology components for university students. Although advances in wireless, mobile technology have resulted in PMDs becoming widely available and less expensive, …
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Konzept zur Optimierung des PMD-Einsatzes in der Automobilindustrie
Today, Product Data Management (PDM) is one of the basic tools within the automotive industry. PDM supports many key processes in the vehicle development und provides downstream areas (e.g. production and after sales) with information and data needed to built up and maintain cars (keywords: PDM as …
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Análise de erros devidos a fatores externos nas medidas realizadas com câmera de distância PMD Camcube 3.0
… nas medidas da câmera. Foi utilizado uma câmera PMD Camcube 3.0, que permite obter imagens de intensidade, distância e amplitude, com 200 x 200 pixels, em um sensor CMOS (Complementary Metal Oxide Semiconductor). Para medir a distância para cada pixel da imagem, este equipamento utiliza o …
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Mirror Neurons are Modulated by Reward Expectation and Grip Force in the Sensorimotor Cortices (S1, M1, PMd, PMv)
… object. We found a population of (S1, M1, PMd, PMv) units that significantly represented grip force during manual and observational trials. We found the neural representation of visually cued force was similar during observational trials and manual trials for the same units, however, the …
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Adaptive polarization mode dispersion equalizers for coherent optical communications systems
Polarization mode dispersion (PMD) arises as a result of the birefringence in optical fibers, due to inherent asymmetries and deformities from external stresses. The spectral components of the input optical pulse propagate with different group velocities. Consequently, pulse duration increases …
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Numerically optimized implementations, mitigation and simulations of polarisation mode dispersion in real-time transmission systems
… of the polarisation mode dispersion (PMD) effect. Outstanding issues on the side of the numerical implementations of PMD are resolved and the proposed methods are further optimized for computational efficiency and physical accuracy. Methods for the mitigation of the PMD effect are …
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High resolution measurement of telecommunication component polarization mode dispersion by means of quantum interferometry
… mitigation of polarization mode dispersion (PMD) in order to deliver optimal performance in fiber-optic communication systems. Telecommunication service providers need their system vendors to match the performance of their platforms to the overall system PMD accumulation, including both fiber …
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READY, STEADY, AND GO. A Transcranial Magnetic Stimulation Study of Set-Related Inhibitory Activity in the Human Dorsal Precentral Region
… suggesting that the dorsal premotor cortex (PMD) and the supplementary motor areas (SMA) might be critically involved in these features. However, the distinctive role of these areas is still matter of controversy. The aim of the present thesis is to provide some preliminary steps toward a …
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Novel Photothermal Materials and Thermally Engineered Membranes for Solar Desalination
… photothermal driven membrane distillation (PMD), where membrane distillation is integrated with photothermal materials that can effectively convert light to thermal energy, has been recognized as an attractive and sustainable technology for freshwater generation. The overall objective of …
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A system model for the effect of Polarization Mode Dispersion on digital modulated optical signals in single mode fibers
… broadening due to Polarization Mode Dispersion (PMD) is developed in this thesis. PMD in optical channels has been a critical factor limiting high-speed data transmission over long distances in optical networks. PMD is a source of Inter Symbol Interference (ISI) and its impact increases with the …
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Identificação dos núcleos pré-familiares em Mocó (Kerodon rupestris): citoarquitetura e imunoistoquímica para NOS
… (PMV) and the dorsal premammillary nucleus (PMD). The PMV is very important to the circuits that control many reproductive and aggressive aspects, while the PMD is very important to the circuit that control defensive and agonistic behavior. In rodents, as rat and mouse, the PMV is a …
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Evaluierung der Troponin-I-Freisetzung in der kardialen Lymphe bei herzchirurgischen Eingriffen unter Einsatz des extrakorporalen Kreislaufes
… response and a perioperative myocardial damage (PMD) leading to postoperative myocardial dysfunction. The cardiac lymphatic system is because of its origin in the interstitial space of the heart, more sensitive than arterial and coronary sinus (CS) blood in reflecting the physiological state of …
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Electronic Mitigation of Polarization Mode Dispersion
… of high bit-rate systems. The random process PMD exhibits a strong frequency dependence, so that its amelioration requires channel by channel, non-linear, adaptive mitigation. Electronic mitigation appears as a very attractive solution to overcome the limit set by the PMD. Consequently, we …
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Slosh Damping with Floating Magnetoactive Micro-Baffles
… of slosh through Propellant Management Devices (PMD) accomplishing a wide range of results. Exploratory research conducted at the Embry-Riddle Aeronautical University Fuel Slosh Test Facility in development of an innovative PMD is presented. Embedding floating micro-baffles with a magnetoactive …
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The Advancements on the Interface of Statistical Computing, Survival Analysis, and Degradation Analysis
… (pmf) of a Poisson multinomial distribution (PMD). However, efficient methods for computing the pmf of the PMD have yet to be developed. To bridge this gap, this dissertation introduces three distinct methods to calculate the pmf of the PMD under different circumstances. Additionally, this …
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Optical pulse distortion and manipulation through polarization effects and chromatic dispersion
… of mitigating polarization mode dispersion (PMD) in fiber optic communication systems. PMD has been a known effect for over a decade. However, it was not an impediment to system performance until recent advances in communication system bit rates. Today, with 10 Gb/s and 40 Gb/s channel rates …
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The effects of increased Plp1 gene dosage on expression and processing of myelin proteins
… gene causes Pelizaeus-Merzbacher disease (PMD) in humans. The most frequent cause of PMD is the duplication of PLP1, which encodes the major myelin membrane protein of the human CNS. The #66 transgenic mice with extra copies of the wild type Plp1 gene are a valid model of PMD caused by …
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Coherent multi-photon interference and compensation of polarization dispersion
… describe theoretical analysis of compensated PMD systems, as well as our theoretical and experimental effeots to develop novel PMD compensators.
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From thought to action
… of neurons in primate dorsal premotor cortex (PMd). Point process modeling of target representation suggests that local and possibly also distant neural interactions influence the spiking patterns observed in PMd. In the second part, I draw on results from surveillance theory to reconstruct …
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Application Of Magnetic Resonance Imaging To Understanding The Pathogenesis Of The X-Linked Leukodystrophy Pelizaeus-Merzbacher Disease
… from the severe Pelizaeus-Merzbacher disease (PMD), that typically begins during infancy with nystagmus, seizures and hypotonia and evolves into spastic quadriparesis, cognitive impairment and ataxia, to ¡¥pure¡¦ spastic paraparesis, that is characterized exclusively by leg spasticity and …
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