196,399 research outputs found
Single mode interband cascade lasers based on lateral metal gratings
No full textThe authors are grateful to the European Union for financial support of this work within the FP7 project “WideLase” (No. 318798).Single mode distributed feedback (DFB) interband cascade lasers were realized by placing metal gratings laterally to dry etched ridges. A discrete tuning range of 104 nm could be realized on the same gain material by a variation of the grating period. At room temperature, a 2.4 mm long and 9.8 μm wide ridge with as-cleaved facets emitted more than 6 mW of single mode output power in continuous-wave (cw) mode at a wavelength around 3.8 μm. With typical temperature- and current-tuning rates of 0.31 nm/ °C and 0.065 nm/mA, respectively, a total tuning bandwidth of more than 10 nm could be covered with a single device.Peer reviewe
Dissertatio Historico-Theologica De Aqua Lustrali Pontificiorum = Vom Weih-Wasser : ad C. Aquam Sale. De Consecrat. D. 3. / Quam Sub Præsidio Joh. Gvilielmi Bajeri ... ventilationi publicæ exponet Johannes Rehberger, Norimbergensis. d. XXV. Junii A. C. M DC XCII. ..
No full textDISSERTATIO HISTORICO-THEOLOGICA DE AQUA LUSTRALI PONTIFICIORUM = VOM WEIH-WASSER : AD C. AQUAM SALE. DE CONSECRAT. D. 3. / QUAM SUB PRÆSIDIO JOH. GVILIELMI BAJERI ... VENTILATIONI PUBLICÆ EXPONET JOHANNES REHBERGER, NORIMBERGENSIS. D. XXV. JUNII A. C. M DC XCII. ..
Dissertatio Historico-Theologica De Aqua Lustrali Pontificiorum = Vom Weih-Wasser : ad C. Aquam Sale. De Consecrat. D. 3. / Quam Sub Præsidio Joh. Gvilielmi Bajeri ... ventilationi publicæ exponet Johannes Rehberger, Norimbergensis. d. XXV. Junii A. C. M DC XCII. .. (1)
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Nutrient accumulation pattern in mixtures of wheat and faba bean is strongly influenced by cultivar choice and co-existing weeds
No full textThis is a dataset supporting the Ajal J & Weih M (2022). Nutrient accumulation pattern in mixtures of wheat and faba bean is strongly influenced by cultivar choice and co-existing weeds.</p
Interband cascade lasers for the mid-infrared spectral region
No full textFinancial support of this work by the German Ministry of Education and Research (FKZ: 13N12440) and by the European Commission in the framework of the FP7 project 'WideLase’ (grant no. 318798) is gratefully acknowledged.Interband cascade lasers are mid-infrared semiconductor lasers that are very promising for low power consumption applications in the 3-6 μm spectral range. Therefore, they are ideal for gas sensing of hydrocarbons. Combining interband transitions utilized in diode lasers with a cascading scheme widely exploited in intersubband transition based quantum cascade lasers, interband cacscade lasers can operate at threshold current densities around or below 100 Acm(-2) at room temperature. Distributed feedback interband cascade lasers emit at room temperature continuous wave output powers in the mW range and above, and their side mode suppression ratio can well exceed 20 dB
Short Rotation Coppice (SRC) Plantations Provide Additional Habitats for Vascular Plant Species in Agricultural Mosaic Landscapes
No full textIncreasing loss of biodiversity in agricultural landscapes is often debated in the bioenergy context, especially with respect to non-traditional crops that can be grown for energy production in the future. As promising renewable energy source and additional landscape element, the potential role of short rotation coppice (SRC) plantations to biodiversity is of great interest. We studied plant species richness in eight landscapes (225 km(2)) containing willow and poplar SRC plantations (1,600 m(2)) in Sweden and Germany, and the related SRC alpha-diversity to species richness in the landscapes (gamma-diversity). Using matrix variables, spatial analyses of SRC plantations and landscapes were performed to explain the contribution of SRC alpha-diversity to gamma-diversity. In accordance with the mosaic concept, multiple regression analyses revealed number of habitat types as a significant predictor for species richness: the higher the habitat type number, the higher the gamma-diversity and the lower the proportion of SRC plantation alpha-diversity to gamma-diversity. SRC plantation alpha-diversity was 6.9 % (+/- 1.7 % SD) of species richness on the landscape scale. The contribution of SRC plantations increased with decreasing gamma-diversity. SRC plantations were dominated more by species adapted to frequent disturbances and anthropo-zoogenic impacts than surrounding landscapes. We conclude that by providing habitats for plants with different requirements, SRC alpha-diversity has a significant share on gamma-diversity in rural areas and can promote diversity in landscapes with low habitat heterogeneity and low species pools. However, plant diversity enrichment is mainly due to additional species typically present in disturbed and anthropogenic environments
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States" By M. Carey.
No full text"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States: containing bried sketches of the moral and political character of those states.
By M. Carey, member of the American philosophical, and of the American Antiquarian Society, and author of The Olive Branch, Cindiciae Hibernicae, essays on banking, on political economy, and on internal improvement.
To which are now added the English editor's comments on the subject; together with Important Advice to Emigrants, and Cautions Against Impositions Practiced in the Outports
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Dr. Glendon Swarthout
No full textHosted by Roger M. Busfield, MSU Assistant Professor of Speech and Theater, Meet the Author is designed to introduce a general audience to a contemporary author and their work through in-depth interviews. This episode features a conversation between Dr. Glendon Swarthout, prolific author and English professor at MSU, and assistant professors Sam S. Baskett and Theodore B. Strandness
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