1,751,353 research outputs found
Resolución CPyGE Nº 61/2016. Refrendar Resolución 1064/2016.
No full textFil: Consejo de Programación y Gestión Estratégica (P). Universidad Nacional de Río Negro. Río Negro, ArgentinaResolución CPyGE Nº 61/2016. Refrendar Resolución 1064/2016
Resolución CSDEyVE Nº 49/2018. Refrendar la Resolución Rectoral 1064/2018.
No full textFil: Consejo Superior de Docencia, Extensión y Vida Estudiantil (D). Universidad Nacional de Río Negro. Río Negro, ArgentinaResolución CSDEyVE Nº 49/2018. Refrendar la Resolución Rectoral 1064/2018.fals
Interstitial laser photocoagulation - Nd-Yag 1064 Nm optical fiber source compared to point heat-source
No full textInterstitial laser photocoagulation (ILP) was performed in vitro in lean bovine and chicken muscle by delivering 1.6 W of continuous-wave Nd:YAG laser energy (1064 nm) from a 400-mum core optical fiber for 300s. The resulting thermal coagulation lesion was consistently larger when the delivered energy was deposited into a small steel sphere than when it was delivered freely into the tissue. Mathematical modelling confirms this result. This preliminary study suggests that a point heat source produces a larger volume of thermal coagulation than a point optical source (1064 nm) delivering the same power.PT: J; NR: 14; TC: 31; J9: LASER SURG MED; PG: 6; GA: KA047Source type: Electronic(1
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Development of Absolute Frequency Reference at 1064 nm for Coherent Transmission and Laser Drift Measurement
No full textThin film lithium niobate modulators at 1064 NM for CMOS-compatible systems
No full textPrather, Dennis W.Across the world, the telecommunications industry has deployed numerous systems for rapid transmission of data across long distances, including cell phone and internet networks. Photonic technologies and fiber-optic communications are ubiquitous in these systems because they allow for lower loss and greater energy efficiency than a conventional electrical transmission line. One photonic device that is crucial to these systems is the electro-optic modulator, which converts signals from the electrical domain to the optical domain at high speed. ☐ Lithium niobate is the material of choice for electro-optic modulators and many such devices have been demonstrated, in bulk lithium niobate at 1550 nm and 1064 nm, as well as thin-film-lithium-niobate (TFLN) at 1550 nm. This thesis presents the first analysis of electro-optic modulators in thin-film-lithium-niobate at shorter wavelengths, especially 1064 nm. Since the half-wave voltage (Vπ) is proportional to the wavelength, a modulator at 1064 nm has the notable advantage of a lower Vπ compared to a similar modulator at 1550 nm. Another significant advantage can be identified when considering the modulator as a component in a larger photonic system, such as an analog photonic link system or an imaging system. In such a system, the modulator would be used in conjunction with light-sensing components (photodetectors and/or image sensors). At 1550 nm, the light-sensing components must be made of III-V semiconductor materials, which are more expensive. However, a system implemented at 1064 nm can use silicon light-sensing components, which are available at lower cost and are CMOS-compatible. Thus, the modulators presented in this thesis open the door towards photonic systems in which the overall cost is reduced.University of Delaware, Department of Electrical and Computer EngineeringM.S
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
AEG Metalldraht-Lampe, Ordn. N° Met 1064
No full textAEG METALLDRAHT-LAMPE, ORDN. N° MET 1064
AEG Metalldraht-Lampe, Ordn. N° Met 1064 ( -
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