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 200 for “"ICI"”.
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Spectrally Modulated Spectrally Encoded Framework Based Cognitive Radio in Mobile Environment
… have been considered promising to enhance the efficiency and utilization of the spectrum. Since some of the spectrum bands are occupied by primary users (PUs), the available spectrum for secondary users (SUs) are non-contiguous, and multi-carrier transmission technologies become the natural …
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Stroboscopic Inline Coherent Imaging
Inline coherent imaging (ICI) is an in-situ monitoring technique, used in laser processing applications such as welding and additive manufacturing. Conventional ICI systems image with a continuous-wave broadband light source, which makes the system susceptible to an effect known as motion artifact. …
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Intercarrier Interference Suppression for the OFDM Systems in Time-Varying Multipath Fading Channels
Due to its spectral efficiency and robustness over the multipath channels, orthogonal frequency division multiplexing (OFDM) has served as one of the major modulation schemes for the modern communication systems. In the future, the wireless OFDM systems are expected to operate at high …
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Inline Coherent Imaging of Laser Additive Manufacturing
… technique, termed inline coherent imaging (ICI), is integrated into the selective laser melting process to monitor melt pool morphology changes and stability at 200 kHz with axial and transverse resolutions reaching 6 µm and 35 µm respectively. Powder layer, processed track, and layer …
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Inter-carrier interference mitigation for underwater acoustic communications
… significant inter-carrier interference (ICI). This thesis explores a number of means for mitigating ICI in such communication systems. One method that is explored is directly adapted linear turbo ICI cancellation. This scheme uses linear filters in an iterative structure to cancel the …
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Part A The application of fluorescence resonance energy transfer to reaction discovery Part B The stereodefined synthesis of tetrasubstituted olefins
… The treatment of the same substrates with ICI produced mixtures of isomers. Mechanistic studies indicated that ICI was the most plausible intermediate and that a Bu4NI-ICI complex was likely responsible for the high selectivity observed in the Bu4NI/DCE system.* The Bu4NI/DCE system was …
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Internet Use Among African American College Students: Psychosocial Correlates of the Digital Divide
… access and the Internet Connectedness Index (ICI), were used as criterion variables in three separate multiple regression analysis (MRA) models. The results of the study found differences in predictive validity based on the criterion variable used, with the ICI accounting for the greatest …
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Modulating the gut microbiome to improve immune checkpoint inhibitor response to cancer: current therapies and emerging methods
… and radiotherapy. Immune checkpoint inhibitor (ICI) therapy is an immunotherapy that blocks inhibitory immune checkpoint interactions, allowing T cells and other immune cells to kill tumor cells. In the tumor microenvironment, there is often overexpression of immune checkpoint proteins, whose …
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The Effects of Estrogen Receptor -Alpha, Estrogen and Phytoestrogen on Global Myocardial Ischemia -Reperfusion Injury
… the same diet as the HPE group and treated with ICI 182780 (HPE+ICI group). The last group was ovariectomized and fed a diet containing 3.32 mg isoflavones/g protein (LPE group). Mouse hearts were subjected to 45 minutes of global ischemia followed by 180 minutes of reperfusion. Rat hearts were …
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Determining stromal evolution in response to immune checkpoint inhibition
… the discovery of immune checkpoint inhibitors (ICIs) which reactivate anti-tumour T cells. However, their rapid translation into front-line treatment has left a number of the fundamental mechanisms of action of the drugs underexplored. One outstanding question is why a significant fraction of …
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Single cell landscape of innate and adaptive immunity in metastatic melanoma treated with immunotherapy
Immune checkpoint inhibitors (ICIs) have revolutionized the care for cancer and extended survival for many patients. While ICIs have shown astonishing clinical benefits, less than 50% of patients experience a durable response. To find better biomarkers for ICI response and understand the diverse …
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Autocrine Effects of Catecholamines on Macrophage Release of Interleukin-6 (IL-6)
… macrophages were treated with the β2 antagonist ICI-118,551 (ICI), there was both inhibition and stimulation of IL-6. Treatment of RAW264.7 macrophages with high and low concentrations of NE and various concentrations of ICI provided evidence that the concentration of NE determines whether the …
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Die Effekte des ERα -Agonisten ZK 281471, dem ERß-Agonisten ZK 281738 auf das Mammagewebe der Sprague-Dawley-Ratte
… sowie in Kombination mit dem Antiöstrogen ICI 182,780 auf das Mammagewebe der Sprague-Dawley-Ratte untersucht. Anhand histologischer Schnitte, die mit Hämatoxylin und Eosin gefärbt wurden, erfolgte die Beurteilung der proliferationsaktivierenden Effekte der Testsubstanzen auf die …
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Resource allocation for multi-cell OFDMA based cooperative relay network
… assumptions such as; inter-cell interference (ICI) free and full availability of channel state information (CSI) were considered. However, the need for more robust, fair and practical resource allocation algorithms motivated us to study the resource allocation algorithm for OFDMA based …
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Monitoring Material Modification using Inline Coherent Imaging
… applications. Such inline coherent imaging (ICI) provides axial resolution on the order of ones to tens of micrometers as well as temporal resolution on the order of microseconds. In stainless steel, the machining front was observed to have very different responses to pulsed lasers operating …
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Climate impact metrics for energy technology evaluation
… Impact (CCI) and Instantaneous Climate Impact (ICI). These metrics use limited information about the climate system, such as the year when stabilization occurs, to calculate tradeoffs between greenhouse gases, and hence the technologies that emit these gases. The CCI and ICI represent a middle …
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Etude par mécanique moléculaire de l'influence des substituants sur la géométrie et la stabilité du cyclohexane
… et la stabilité du cyclohexane est présentée ici.
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A comparison of timing methods in orthogonal frequency division multiplexing (OFDM) systems
… such as IEEE 802.16a. OFDM is a very efficient communications scheme for wireless ADHOC networks. However, the wireless environment causes inter-symbol interference (ISI) and inter-carrier interference (ICI). Estimating the starting point of an OFDM symbol must be handled efficiently and …
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Compensation of nonlinear distortion and frequency offset in OFDM systems
… previous learning architecture didn’t make an efficient training for the predistorter because the learning algorithm utilized only indirect structure. For more efficient training, we propose a new learning algorithm which utilize direct as well as indirect structures in this dissertation. Our …
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Role of the Gut Microbiome in Cancer Immunotherapy Efficacy and Side Effects
… and side effects of immune checkpoint inhibitor (ICI) therapies. However, the intricate interactions between microbiota composition, immune modulation, and ICI therapy remain incompletely understood. This thesis mainly investigated how gut microbiota dysbiosis affects immune cells, ICI-induced gut …
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