1,721,242 research outputs found
Red mold dioscorea has greater anti-hypertensive effect than traditional red mold rice in spontaneously hypertensive rats
No full textCommentaire bouddhique se rattachant principalement à la notion de Wu shi jiao 五 時 教 et inspiré du She da cheng lun 攝 大 乘 論 et du Cheng wei shi lun 成 唯 識 論, non cités dans le texte.
No full textShe da cheng lun 攝 大 乘 論Cheng wei shi lun 成 唯 識 論Vijñaptimātratāsiddhi-śāstra ?Déb. manque. Écr. xing très soignée, en petits car. 2 car. ajoutés f. 3. Encre noire. 82 col., 27 et 28 col. par f., 38 à 45 car. par col. Marges tracées, sup. 1,3 cm, inf. 1,7 cm. Réglure
Commentaire bouddhique se rattachant principalement à la notion de Wu shi jiao 五 時 教 et inspiré du She da cheng lun 攝 大 乘 論 et du Cheng wei shi lun 成 唯 識 論, non cités dans le texte.
No full textShe da cheng lun 攝 大 乘 論Cheng wei shi lun 成 唯 識 論Vijñaptimātratāsiddhi-śāstra ?Déb. manque. Écr. xing très soignée, en petits car. 2 car. ajoutés f. 3. Encre noire. 82 col., 27 et 28 col. par f., 38 à 45 car. par col. Marges tracées, sup. 1,3 cm, inf. 1,7 cm. Réglure
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Variations on the Author
Full text link“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
Full text linkWe 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
Using Fiber Bragg Grating Sensors to Quantify Temperature Non-Uniformities in Plasmonic Catalyst Beds under Illumination
No full textDistinguishing between photothermal and non-thermal contributions is essential in plasmon catalysis. Use of a tailored optical temperature sensor based on fiber Bragg gratings enabled us to obtain an accurate temperature map of an illuminated plasmonic catalyst bed with high spatiotemporal resolution. Its importance for quantification of the photothermal and non-thermal contributions to plasmon catalysis is demonstrated using a Ru/Al2O3 catalyst. Upon illumination with LEDs, we measured temperature differences exceeding 50 °C in the top 0.5 mm of the catalyst bed. Furthermore, we discovered differences between the surface temperature and the temperature obtained via conventional thermocouple measurements underneath the catalyst bed exceeding 200 °C at 2.6 W cm−2 light intensity. This demonstrates that accurate multi-point temperature measurements are a prerequisite for a correct interpretation of catalysis results of light-powered chemical reactions obtained with plasmonic catalysts.ImPhys/Optic
Study of millimeter wave imaging of conducting objects
No full text本論文主要係研究以毫米波照射金屬散射物體，由其後向掃描屏幕所得之散射場，重建金屬物體之毫米波影像。金屬物體之散射模擬，係以離散點表示金屬物體上之散射中心，並配合推導之成像公式，使用傅氏轉換重建散射物體之毫米波影像。
理論分析，首先描述散射金屬物體受平面波照射，經物理光學近似，推導於後向掃描屏幕上，所接收之散射場與散射物體之關係式，再經由合理近似假設，經由反傅式轉換得到物體之毫米波影像，因此可藉由適當控制頻率、距離及掃描屏幕尺寸，得到合理的散射物體的影像與影像解析度。論文中並針對不同散射體進行模擬，包含單點物體、多點物體、以及複雜形狀的飛機與手槍等散射物體，以探討散射物體與其成像之關係。This thesis mainly describes the study of millimeter-wave imaging of conducting objects. Based on the scattered field recorded over a scanned aperture at the backward direction of the conducting object, Chapter 2 derives the formulation to reconstruct the millimeter-wave images of the scattering objects. In Chapter 3, the simulation of the object scattered field is conducted by using discrete points to represent the scattering centers over the conducting object, then uses Fourier transformation to reconstruct the millimeter-wave image of the scattering object.
In the theoretical analysis, the scattering conducting object is illuminated by a plane wave, under physical optics approximation, the relation between the scattering object and its scattered field over the backward scanned aperture is derived, and then under a reasonable approximation, millimeter-wave image of the scattering object can be reconstructed through two-dimensional inverse Fourier transformation. Therefore by properly controlling the frequency, distance and size of scanned aperture, one can acquire the reasonable quality and resolution of the scattering object image. In this thesis, simulations of different scattering objects, including single point object, multiple point object, as well as complex shaped airplane and pistol are conducted to study the relationship between the scattered field and the formation of image
Local Maximum Entropy Finite Element Method for Flow Field Problem
No full text本論文的主旨在於對區域最大熵值有限元素法(local maximum-entropy finite element method)的利用與研究，先將方法用於二維不同Peclet數的穩態的對流擴散問題計算，確認其可行性，接著為了進一步確認其改善，我們把此方法用於奈維爾-史托克斯方程式同時利用運算子拆解法求解，測試各種可能的加密佈點方式，再將之與現有文獻的數據加以比較，確認其因最大熵值有限元素法而提升了精度，最後為了進一步證明此方法能應用於多種幾何場域，再測試了不規則形狀的流場，並以高密度網格之有限元素法求解作為指標，再與使用最大熵值有限元素法之結果加以比較，亦能發現結果與效率有顯著的提升，以證明此方法能夠在複雜幾何流場與高梯度的問題中提升其精度與效率。This thesis is concerned with the study of local maximum-entropy finite element method (LME-FEM) on flow field problems. On this study the method is first used to solve steady advection-diffusion problems at various Peclet numbers for two-dimensional conditions. After verifying the capability of this method to simulate the advection-diffusion equation, we next apply the scheme to solve Navier-Stokes equations with the operator splitting procedure by a two-step projection method. Testing a variety of refinement method, we tried to demonstrate that the procedure of adding extra points in the elements would increase the accuracy of numerical computation. All the numerical results of this study are compared favorably with the existing reference data. In addition, we further tried to do the same problem of cavity flow but with a hole in the domain. Comparing the results with the mesh independent solution, reasonably good agreements and better efficiency can be observed through present LME-FEM algorithm. It is proved that LME-FEM will increase the efficiency even under the unfavorable conditions of high gradient and complex geometry
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