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分布尼泊尔至台湾的少齿越桔组(越桔属)(英文)

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植物分类与资源学报 2003年第1期25卷 1-24页

作者： S.P.vander Kloet,T.A.dickinson ,W.Strickland 25 Willcocks Street Toronto Ontario M5S 3B2 Canada Department of Biology Acadia University Wolfville Nova Scotia BOP 1X0 Center for Biodiversity & Conservation Biology Royal Ontario Museum 100Queen's Park Toronto Ontario M5S 2C6 Canada Canada Department of Botany University of Toronto

关键词：越桔属少齿越桔组数值分类分类

Gender Identification on Twitter Using the Modified Balanced Winnow

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Communications and Network 2012年第3期4卷 189-195页

作者： William Deitrick Zachary Miller Benjamin Valyou Brian dickinson Timothy Munson Wei Hu Department of Computer Science Houghton College New York USA

With the rapid growth of web-based social networking technologies in recent years, author identification and analysis have proven increasingly useful. Authorship analysis provides information about a document’s author, often including the author’s gender. Men and women are known to write in distinctly different ways, and these differences can be successfully used to make a gender prediction. Making use of these distinctions between male and female authors, this study demonstrates the use of a simple stream-based neural network to automatically discriminate gender on manually labeled tweets from the Twitter social network. This neural network, the Modified Balanced Winnow, was employed in two ways;the effectiveness of data stream mining was initially examined with an extensive list of n-gram features. Feature selection techniques were then evaluated by drastically reducing the feature list using WEKA’s attribute selection algorithms. This study demonstrates the effectiveness of the stream mining approach, achieving an accuracy of 82.48%, a 20.81% increase above the baseline prediction. Using feature selection methods improved the results by an additional 16.03%, to an accuracy of 98.51%.

关键词： Gender Identification Twitter Modified Balanced Winnow Neural Networks Stream Data Mining Feature Selection

Author Gender Prediction in an Email Stream Using Neural Networks

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Journal of Intelligent Learning Systems and Applications 2012年第3期4卷 169-175页

作者： William Deitrick Zachary Miller Benjamin Valyou Brian dickinson Timothy Munson Wei Hu Department of Computer Science Houghton College Houghton USA

With the rapid growth of the Internet in recent years, the ability to analyze and identify its users has become increasingly important. Authorship analysis provides a means to glean information about the author of a document originating from the internet or elsewhere, including but not limited to the author’s gender. There are well-known linguistic differences between the writing of men and women, and these differences can be effectively used to predict the gender of a document’s author. Capitalizing on these linguistic nuances, this study uses a set of stylometric features and a set of word count features to facilitate automatic gender discrimination on emails from the popular Enron email dataset. These features are used in conjunction with the Modified Balanced Winnow Neural Network proposed by Carvalho and Cohen, an improvement on the original Balanced Winnow created by Littlestone. Experiments with the Modified Balanced Winnow show that it is effectively able to discriminate gender using both stylometric and word count features, with the word count features providing superior results.

关键词： 1-Gram Word Counts Balanced Winnow Enron Email Gender Prediction Neural Network Stream Mining Stylometric Features

Thrombospondin peptide ABT-898 inhibits inflammation and angiogenesis in a colitis model

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World Journal of Gastroenterology 2015年第20期21卷 6157-6166页

作者： Linda S Gutierrez Jun Ling Derek Nye Konstantina Papathomas Catherine dickinson Department of Biology and Health Sciences Wilkes University Department of Basic Sciences The Commonwealth Medical College

AIM: To evaluate the efficacy of the improvedthrombospondin mimetic peptide ABT-898 in a murine model of ulcerative colitis. METHODS: The dextran sodium sulfate(DSS) was used for the induction of colitis in both TSP-1 deficient(TSP-1-/-) and wild type(WT) mice during 7 d. While mice were receiving the DSS dissolved in the drinking water, the ABT-898 peptide was dissolved in sterile 5% glucose solution and delivered using mini pumps subcutaneously implanted. Plasma samples were analyzed for interleukin(IL)-6 by ELISA assay and colonic tissues were harvested, fixed and processed for histological evaluation. Immunohistochemistry using antibodies for the detection of CD31 and MECA in endothelial cells was performed. Inflammation was graded in colonic sections and the number of microvessels in each lesion was assessed. Activation of signal transducer and activator of transcription 3(STAT3) in colonic samples was quantified by immunohistochemistry and Western blotting using antibodies against total STAT3 and phosphorylated STAT3(p STAT3)(Ser727).RESULTS: Treatment with ABT-898 considerably diminished the inflammatory response in WT and TSP-1-/- mice(P < 0.0001 in both groups vs control). Identification of blood vessels highlighted by CD31/MECA immunohistochemistry, showed significantly reduced vessel counts in colitic lesions of WT and TSP-1-/- mice treated with ABT898(TSP-1-/- controls/TSP-1-/- treated, P = 0.0002; WT controls/WT treated, P = 0.0005). Consistently, IL-6 was significantly diminished in plasma samples of TSP-1-/- and WT treated with the peptide when compared to the control mice(P = 0.0002 and P = 0.0148, respectively). p STAT3 positive cells were quantified in WT and TSP-1-/- treated with ABT-898. A significant decrease in positive cells for p STAT3 was observed in treated mice(TSP-1-/- controls/TSP-1-/- treated, P = 0.0089; WT/WT treated, P = 0.0110). These results were confirmedby Western blotting analyses showing lower levels of p STAT3 in colitic lesio

关键词： Thrombospondin 1 ABT-898 ABT-510 Angiogenesis Inflammatory bowel disease Dextransodium sulfate model Interleukin-6 STAT-3

A Conceptual Approach to the“Insider”and the“Outsider”

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A Conceptual Approach to the“Insider”and the“Outsider”

第六届中国跨文化交际研究会年会

作者： Sun Zhenbin (Fairleigh dickinson University, Teaneck, NJ 07666, USA)

＜正＞"Insider" and "outsider" are two metaphors of intercultural communication and have rich historical and social significance. This paper analyzes the two metaphors in light of three conceptual paradoxes: （1） international communication vs. global communication;（2） modernity vs. postmodernity;and （3） self-reference vs. fusion of horizons. While the first paradox illustrates

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储存高粘性散粒物料筒仓的功能设计

粮食与饲料工业 1991年第6期 57-61页

作者： R.R.dickinson J.C.Jofriet 周慧

本文报告了对储存高粘性散粒体的筒仓功能设计所进行的分析.北美和欧洲农场塔(筒)仓常用于高水分青贮饲料,这些饲料处于60%～70%(湿基)高水分状态时,粘性强度特别大。现有的筒仓贮存高水分物料时,仓底的卸料系统功能特性下降很多。本文... 详细信息

本文报告了对储存高粘性散粒体的筒仓功能设计所进行的分析.北美和欧洲农场塔(筒)仓常用于高水分青贮饲料,这些饲料处于60%～70%(湿基)高水分状态时,粘性强度特别大。现有的筒仓贮存高水分物料时,仓底的卸料系统功能特性下降很多。本文运用仓壁摩擦力边界的有限元模型,对这种筒仓料拱区域中散粒体内部应力状态进行了彻底的分析。分析的结果与近来实验结果相当吻合,由此提出了改善功能性质的新的解决方法。对于这种解决方法的初步分析表明更进一步的探索是值得进行的。

关键词：饲料厂高粘散粒物料筒仓设计

Investigation of Long-Term Climate and Streamflow Patterns in Ontario

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American Journal of Climate Change 2021年第4期10卷 467-489页

作者： Amin Azarkhish Ramesh Rudra Ramesh Rudra Prasad Daggupati Jaskaran Dhiman Trevor dickinson Pradeep Goel Water Resources Engineering School of Engineering University of Guelph Guelph Ontario Canada Ministry of the Environment Conservation and Parks (MECP) Ontario Canada

To develop mitigation and adaptation strategies for undesired consequences of climate change, it is important to understand the changing hydrological and climatological trends in the past few decades. Although the changing climate is a cause of concern for the entire planet, its effects can vary significantly on a regional scale. Canada has experienced a rapid rise in the annual mean surface air temperature in the past decades. The current study aims to investigate trends in monthly mean precipitation, rainfall, snowfall, maximum and minimum temperature, as well as baseflow, surface runoff, and total streamflow values for the province of Ontario, Canada. To the best of the author’s knowledge, a similar study involving rural and urban watersheds, that quantifies the impact of changing climate on temperature and other hydrological processes over a period ranging from 1968 to 2017, has not yet been conducted for Ontario. Man-Kendall trend test was used to analyze trends in the above mentioned climatic and hydrometric parameters for rural and urban watersheds situated in the northern and southern parts of Ontario. The results of this study indicate that the mean monthly minimum temperatures for rural watersheds situated in southern Ontario have increased significantly for the winter and summer months, which may have caused an increase in snowmelt and consequently the streamflow for the winter months in the region. Unlike the watersheds in southern Ontario, the northern watersheds witnessed relatively fewer instances of significant changes in mean monthly temperatures, and in some cases, declining rates have been noted. Similarly, only a few watersheds in the north saw a substantial drop in baseflow over the summer months. For nearly all the months, the average monthly minimum and maximum temperatures were found to increase for urban watersheds. The streamflow, baseflow, and surface runoff increased, likely due to rapid urbanization, resulting in a lower infiltration rat

关键词： Climate Change Hydrology Ontario Streamflow Precipitation Temperature

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“希望”是羽衣翩跹的小鸟

英语学习 2017年第8期 58-59页

作者： Emily dickinson

译诗一“希望”是羽衣翩跹的小鸟栖息在人们心头唱着那无词的曲调——任何地方都永不停歇。

关键词： “希望” 译诗英语阅读理解

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油/水型乳状液中的油相结晶

无锡轻工大学学报（食品与生物技术） 2000年第2期19卷 116-121页

作者：麻建国 E.dickinson M.J.W.Povey 无锡轻工大学食品学院江苏无锡214036 利兹大学食品科学系

报道了油相在高度分散状态下的结晶特性 .应用超声波检测技术分别研究了降温和升温过程中体积分数为 2 0 %的O/W型乳状液中油相 (正十六烷 )粒子 (平均直径d32 =0 .3 6± 0 .0 2 μm)内部晶体的形成和熔化、在结晶点的晶体生长情况以及... 详细信息

报道了油相在高度分散状态下的结晶特性 .应用超声波检测技术分别研究了降温和升温过程中体积分数为 2 0 %的O/W型乳状液中油相 (正十六烷 )粒子 (平均直径d32 =0 .3 6± 0 .0 2 μm)内部晶体的形成和熔化、在结晶点的晶体生长情况以及在高于结晶温度的情况下结晶粒子对未结晶粒子的诱导结晶等 .结果表明 ,与体相结晶相比 ,分散相的结晶需要更深的过冷程度 (数值取决于乳化剂类型和粒子大小 ) ;在结晶温度下 ,粒子内晶体的成核和生长过程与粒子间的相互作用关系不大 ;油相成分相同时 ,结晶了的粒子会诱使未结晶的粒子发生固化 .在乳状液体系中 ,完全液态的粒子的成核被认为是一种均相成核 ,而液固态粒子共存的体系的结晶有可能遵循一种异相成核机理 .

关键词：分散相超声波油水型乳状液油相结晶融化