1,343 research outputs found

    Turn-on speed of grounded gate NMOS ESD protection transistors

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    The turn-on speed of nMOS transistors (nMOST) is of paramount importance for robust Charged Device Model (CDM) protection circuitry. In this paper the nMOST turn-on time has been measured for the first time in the sub-halve nanosecond range with a commercial e-beam tester. The method may be used to improve CDM-ESD hardness by investigating the CDM pulse responses within circuit. Furthermore it is shown that the CDM results of various protection layouts can be simulated with a SPICE model

    Presidential Greatness

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    Causal relationship between Indian ports' originated container traffic and total transshipments of port of Colombo : a Granger Causality analysis

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    India is both the number one port of destination for transshipments moving out of Colombo, and the number one port of origin for transshipments coming in the port. The port of Colombo is complementary to Indiaā€™s growth aspirations. Today out of 4.7 million (TEUs) transshipment volumes of port of Colombo, close to 40% are Indian transshipments coming from East and West multiple ports of India and a major portion of the Indian transshipment container traffic handled by the port of Colombo is down to India. Using the Granger causality approach, this research investigates the causality relationship between Indian portsā€™ originated transshipments and total transshipments of port of Colombo based on monthly time series data (transshipments throughput in TEUs) from 2008 to 2017.It finds a unidirectional causality from total transshipments of Colombo to Indian portsā€™ originated transshipments in port of Colombo. It suggested that the ongoing port expansion projects, opening up for new markets and attracting new shipping lines in port of Colombo have been created a significant impact on Indian portsā€™ container traffic through port of Colombo. Key words: Unit root test, Granger causality, Total transshipments, Indian originated transshipments, Port of ColomboMaste

    Consequences of Uncertainty in Global-Scale Land Cover Maps for Mapping Ecosystem Functions: An Analysis of Pollination Efficiency

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    Mapping ecosystem services (ESs) is an important tool for providing the quantitative information necessary for the optimal use and protection of ecosystems and biodiversity. A common mapping approach is to apply established empirical relationships to ecosystem property maps. Often, ecosystem properties that provide services to humanity are strongly related to the land use and land cover, where the spatial allocation of the land cover in the landscape is especially important. Land use and land cover maps are, therefore, essential for ES mapping. However, insight into the uncertainties in land cover maps and how these propagate into ES maps is lacking. To analyze the effects of these uncertainties, we mapped pollination efficiency as an example of an ecosystem function, using two continental-scale land cover maps and two global-scale land cover maps. We compared the outputs with maps based on a detailed national-scale map. The ecosystem properties and functions could be mapped using the GLOBCOVER map with a reasonable to good accuracy. In homogeneous landscapes, an even coarser resolution map would suffice. For mapping ESs that depend on the spatial allocation of land cover in the landscape, a classification of satellite images using fractional land cover or mosaic classes is an asset

    Draft genome sequence of Agrobacterium deltaense strain CNPSo 3391, isolated from a soybean nodule in Mozambique

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    Open Access Article; Published online: 7 March 2019Agrobacterium deltaense strain CNPSo 3391 was isolated from a soybean nodule in Mozambique. Its genome size was estimated at 4,926,588ā€‰bp. This isolate carries several coding sequences for stress tolerance, but no identifiable nodulation or virulence genes. Possible ecological roles of bacteria isolated from legume nodules and closely related to Agrobacterium are discussed

    The Warship in History

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    Peace journalismā€“critical discourse case study: media and the plan for Swedish and Norwegian defence cooperation

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    PURPOSE: To describe the occurrence of atypical, bilateral detachment of the macular neuroepithelium and Klinefelter syndrome in a young patient. METHODS: Case report. RESULTS: A 20-year-old male of Chinese origin with karyotype 47,XXY presented with bilateral central neurosensory retinal detachment. There was spontaneous improvement. CONCLUSIONS: An atypical form of detachment of the macular neuroepithelium was seen in a young patient with Klinefelter syndrome. The pathophysiological mechanism is not clear. The possibility of a hormonal imbalance is discussed. A differential diagnostic consideration is central serous chorioretinopathy and a mild form of Vogt-Koyanagi-Harada syndrome. This case is of interest because of the rarity of association between Klinefelter syndrome and chorioretinal abnormalities
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