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.
Results
Showing 1 to 20 of 66 for “"memory effects"”.
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Working Memory Effects on Bilingual Sentence Processing
… and the Korean/English bilingual group showed effects of working memory capacity (WMC) in the interpretive and post-interpretive stages of processing, providing support for the Single Resource model (Just & Carpenter, 1992). The monolingual English and monolingual Korean low-span groups showed …
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Reliability analysis of complex systems with long memory effects
… have highlighted the significance of Long-Term Memory (LTM) effects in degradation processes, where future behaviors are strongly coupled with historical degradation patterns. Although most existing research has focused on the LTM effect in univariate degradation processes with sufficient data, …
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Hysteresis and memory effects in nanocrystal embedded MOS capacitors
Nanocrystal Memory is a promising new memory type which utilizes silicon nanocrystals and quantum mechanical direct tunneling current for charge storage. This thesis presents the work done to characterize the memory effect in nanocrystal embedded metal-oxide-semiconductor (NC-MOS) capacitors, the …
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Negative Mood Reduces Self-Referential Memory Effects in an Online Object Ownership Simulation
… resources to selfrelevant objects making their memory traces more robust and easily retrievable. Research has repeatedly shown that self-owned and self-proximal objects benefit from this bias. However, little is known about the factors that impact the SRE. Emerging research suggests that emotion …
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Contributing to and using a shared design memory : effects on learning analysis and design skills
A shared design memory emerging from the contributions of novice designers affords, theoretically, unique opportunities to support individual and organizational learning. StoryNet, is a shared design memory implemented, using a groupware technology, to support learning information systems analysis …
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Precise magnetic control of the supercurrent and fluxoids in nanodevices: Memory effects and diode effects
… of junctions in the JJA producing interference effects. This results in a sequence of sharp critical current peaks measured against the external magnetic field, significantly sharper than those observed in a conventional Superconducting Quantum Interference Device (SQUID). This effect makes JJAs …
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Large signal modeling of GaN HEMTs for UMTS base station power amplifier design taking into account memory effects
… e.g. a high output impedance and a marginal memory effect, which are not provided by LDMOSFETs, are necessary.Compared to Si-LDMOSFETs, recently emerging GaN HEMTs offer higher power density, higher frequency of operation, higher operating voltage and higher operating temperature which lead …
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An EEG Study on Loneliness and Recognition Memory
… relationship between loneliness and recognition memory (i.e., recollection and familiarity) has not been thoroughly examined. The current study hypothesized that more lonely individuals would have lower recognition memory performance, specifically recollection, with smaller ERP parietal old-new …
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Neural Correlates of Item and Item-Context Memory Encoding
… of the formation of episodic memories -- or memory for an item and its context -- have been studied using a functional neuroimaging procedure known as the 'subsequent memory procedure'. In this procedure, neural activity associated with later remembered versus later forgotten study items is …
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PROCESSING AND CHARACTERIZATION OF TINI-BASED ALLOYS FABRICATED BY LASER AIDED MANUFACTURING
… feedstock. TiNi-based alloy is a type of shape memory alloy (SMA), a smart material with unique shape memory effects. Using laser powder DED to synthesize TiNi-based SMAs from elemental powder mixture can create more possibilities in new compositions and properties. It can also overcome the …
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Advanced digital predistortion of power amplifiers for mobile and wireless communications
… overview of existing linearisation and memory-effects compensation techniques and reveals the current issues in the field. Further, the thesis depicts the proposed solutions to the problems, including the developed in-band distortion modelling technique, model extraction methods, …
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Predistortion for Nonlinear Power Amplifiers with Memory
… In addition, significant frequency-dependent Memory Effects result in high power amplifiers operating on wideband signals. Therefore, these effects need to be considered during any attempt to minimize amplifier distortion. In this thesis, we present two schemes to cancel nonlinear distortion …
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Novel predistortion techniques for RF power amplifiers
… power amplifiers with both nonlinearities and memory effects interest the researchers. In our thesis, novel predistortion techniques are presented for this purpose. Firstly, we improve the digital injection predistortion in the frequency domain. Secondly, we are the first authors to propose a …
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Monitoring Metal Containing Particulates Distribution on a College Campus Using Dandelion (<em>Taraxacum officinale</em>) Leaves as Receptors.
… also monitored. To reduce the probability of memory effects from the long-term atmospheric deposition or absorption of metals from soil a seasonal plant, dandelion, was used to monitor the metal contents. The metals monitored are cadmium, calcium, copper, chromium, iron, lead, and zinc. …
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Differential and numerical models of hysteretic systems with stochastic and deterministic inputs
… driven closed loop systems with hysteresis type memory are studied. This type of system is presented as a possible stochastic counterpart to deterministic models in the areas of economics, finance, terrestrial hydrology and biology. Some price dynamics models are presented as a motivation for the …
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Thermo-responsive and electroconductive shape-memory polymer composites for useful applications
Shape-memory polymers (SMPs) are stimuli-responsive materials with the ability to undergo a large recoverable deformation upon the application of an external stimulus. International research interest into the shape-memory effects (SMEs) of these polymers is rapidly growing. Unique polymer …
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Design and implementation of adaptive baseband predistorter for OFDM nonlinear transmitter. Simulation and measurement of OFDM transmitter in presence of RF high power amplifier nonlinear distortion and the development of adaptive digital predistorters based on Hammerstein approach.
… OFDM transmitter utilizing a nonlinear PA with memory effect is observed and discussed. For this purpose, a 10W Class-A/B power amplifier with a gain of 22 dB, operated over the 3.5 GHz frequency band was designed and implemented. The proposed baseband PD is independent of the operating RF …
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PH-gated porosity and reversible swelling transitions in polyelectrolyte multilayers
… transitions and concomitant conformational memory effects as well as pH-gated nano- and microporosity in PEMs, are described. The PEMs in this thesis are created by an aqueous processing technique, which enables the straightforward manipulation of processing variables to create …
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