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We show that nearly 90 electrons can be stored at 30 nm dimensions of memory nodes, sufficient for reproducibility with having multi-bit memory windows, and that a minimum of tunneling oxide thickness is required to assure reliable retention characteristics. This work has achieved ultra-low number of electron storage while achieving high threshold shifts and demonstrates predictability through self-consistent...
In the use of single/few electrons in distributed storage for nonvolatile, low power and fast memories, providing statistical reproducibility at the nanoscale is a key challenge since relative variance has a radicn dependence and we are working with limited number of storage sites. We have used defects at interfaces of dielectrics to evaluate this reproducibility and evaluate the performance of memories...
Summary form only given. Devices (and underlying materials and technology) are a starting point towards circuits, and ultimately systems designed using an appropriate architecture that can provide properties desired for the electronics environment. The current research in silicon nanoscale transistor area has a preponderance of efforts aimed towards improvement in electrostatics such as using nanowires...
Results of association studies using individual single nucleotide polymorphisms (SNPs) or SNP-haplotypes have been inconsistent. Possible reasons could be attributed to poor experimental design, generalization of results from a single population or inappropriate choice of markers. Here we explore the possibility that the sequence context of a SNP may be responsible for its poor association with the...
Amongst the most popular questions related to information systems of today are the ones related to the search of materials, devices, circuits and architectural approaches that allow us to access and utilize the nanoscale. The broad reach of these questions leads to excessively speculative and exaggerated claims because of the nature of information processing as a complex system problem. The goal of...
In this paper, the architecture of a parallel- plane deflection-routed circular banyan (PDCB) network based switching fabric is presented. The PDCB switch has a cyclic, regular, self-routing, simple architecture and fairly good performance. Its performance is improved due to reduction in blocking by two-dimensional path-multiplicity of the proposed architecture. A simple analytical model based on...
In this paper, we propose a novel generalized distance metric based on a model that incorporates the time axis explicitly. The proposed metric is based fundamentally on the Mahalanobis distance metric, which eliminates the correlation and scaling errors in similarity searches on trajectory databases. We propose the incorporation of a weight matrix in the proposed distance metric, which allows for...
A primary source of common-mode (CM) electromagnetic interference (EMI) in high frequency switching converters is the parasitic capacitance between switching element and its heat sink. A passive method for cancellation of CM-EMI is analyzed in detail in this paper. Compared to with active cancellation techniques, it is much simpler and requires no additional switches or semiconductor components. The...
Summary form only given. At the University of Maryland, we have been evaluating the use of gyroklystrons to drive RF accelerators. In order to use our 500 kV, 500 A system to energize a 17 GHz accelerator structure built by the Haimson Research Corporation, we need a large-signal gain of nearly 50 dB. To accomplish this goal, we have designed a six-cavity circuit in which the first three cavities...
Summary form only given. The University of Maryland Gyroklystron Program has as a goal the production of 80 MW of peak power at 17 GHz, using a 500 W, 500 A electron beam. Frequency-doubling gyroklystron circuits that had 3-4 cavities and that were driven by a 150 kW, X-band have to date only produced maximum powers of about 27 MW. The root cause of this inability to achieve the designed operating...
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