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基于实际数据分析的列车晚点传播过程构建方法与实例

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北京交通大学学报 2012年第6期36卷 15-20页

作者：孟令云 rob M.P.Goverde 北京交通大学交通运输学院北京100044 代尔夫特理工大学交通运输系

基于轨道区段锁闭时间理论,提出了两趟列车间晚点传播过程的构建方法,在此基础上研究了构建多趟列车晚点传播链(树)的方法.以荷兰铁路繁忙干线之一的莱顿—海牙—鹿特丹—多特雷赫特—多特雷赫特南站线路为背景,选取2009年2月的数据,从... 详细信息

基于轨道区段锁闭时间理论,提出了两趟列车间晚点传播过程的构建方法,在此基础上研究了构建多趟列车晚点传播链(树)的方法.以荷兰铁路繁忙干线之一的莱顿—海牙—鹿特丹—多特雷赫特—多特雷赫特南站线路为背景,选取2009年2月的数据,从列车间晚点传播链和列车间结构性晚点传播两个方面对上述方法进行验证.结果表明,该方法简便易行、可操作性强,能够较准确地构建实际的列车晚点传播过程,有一定推广价值.

关键词：铁路运输列车晚点传播列车运行图数据挖掘

Cytosolic Ca^2＋ Signals Enhance the Vacuolar Ion Conductivity of Bulging Arabidopsis Root Hair Cells

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Molecular Plant 2015年第11期8卷 1665-1674页

作者： Yi Wang Julian Dindas Florian Rienmuller Melanie Krebs Rainer Waadt Karin Schumacher Wei-Hua Wu Rainer Hedrichl M. rob G. Roelfsema Molecular Plant Physiology and Biophysics Julius-von-Sachs Institute for Biosciences Biocenter Werzburg University Julius-von-Sachs-Platz 2 97082Wurzburg Germany State Key Laboratory of Plant Physiology and Biochemistry (SKLPPB) College of Biological Sciences China Agricultural University Beijing 100193 China Centre for Organismal Studies Developmental Biology of Plants University of Heidelberg Im Neuenheimer Feld 230 69120 Heidelberg Germany College of Science King Saud University (KSU) Riyadh Saudi Arabia

Plant cell expansion depends on the uptake of solutes across the plasma membrane and their storage within the vacuole. In contrast to the well-studied plasma membrane, little is known about the regulation of ion transport at the vacuolar membrane. We therefore established an experimental approach to study vacuolar ion transport in intact Arabidopsis root cells, with multi-barreled microelectrodes. The subcellular position of electrodes was detected by imaging current-injected fluorescent dyes. Comparison of measurements with electrodes in the cytosol and vacuole revealed an average vacuolar membrane potential of -31 inV. Voltage clamp recordings of single vacuoles resolved the activity of voltage-independent and slowly deactivating channels. In bulging root hairs that express the Ca2＋ sensor R-GECO1, rapid elevation of the cytosolic Ca^2＋ concentration was observed, after impalement with microelectrodes, or injection of the Ca^2＋ chelator BAPTA. Elevation of the cytosolic Ca^2＋ level stimulated the activity of voltage- independent channels in the vacuolar membrane. Likewise, the vacuolar ion conductance was enhanced during a sudden increase of the cytosolic Ca^2＋ level in cells injected with fluorescent Ca^2＋ indicator FURA-2. These data thus show that cytosolic Ca^2＋ signals can rapidly activate vacuolar ion channels, which may prevent rupture of the vacuolar membrane, when facing mechanical forces.

关键词： electrophysiology ion channels calcium signaling/transport fluorescence imaging Arabidopsis,vacuolar membrane

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KANARDO

计算机光盘软件与应用（COMPUTER ARTS数码艺术） 2006年第3期 26-30页

作者： MARK PENFOLD rob SCOTT（摄影）

在创作突破性的设计师，Kanardo总是可以采取最独特而具冒险性的方法。Mark Penfold本期采访了这个法国设计团队，了解他们是如何走出里昂，成名于世界的。

关键词：设计师 Kanardo 法国设计团队

Finding Opportunity in Adversity:Tax-focused COVID-19 Support in BRITACOM Members

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Belt and Road Initiative Tax Journal 2020年第1期1卷 63-71页

作者： Chris Sanger rob Thomas Becky Lai Global Government and Risk Tax and Tax Policy Ernst&Young LLPLondonUK Tax Policy Ernst&Young LLP DCUK Greater China Tax Policy Ernst&Young Tax Service Limited Hong KongChina

In this article,we show that,in common with the 2008-2009 global financial crisis,tax administration is already playing and will continue to play an important role in securing a safe and expeditious exit from the COVID-19 crisis,and the lessons learned from globally are crucial for the Belt and Road Initiative(BRI)crisis *** look at the types of measures being utilized both globally and by BRITACOM Members’governments,the added burden being placed on tax administrators as a result of the need to oversee new programs and change existing ones,and the potential longer-term effects on tax administration as the world learns to live in what may need to be a"new normal".We conclude that there is an opportunity to use this experience to"build better"as we look beyond the support phase and to the future of tax administration.

关键词： Belt and Road Initiative Tax administration COVID-19 stimulus COVID-19 tax response

Production and characterization of bioaerosols for model validation in spacecraft environment

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Journal of Environmental Sciences 2018年第7期30卷 227-238页

作者： Anniina Salmela Eero Kokkonen Ilpo Kulmala Anna-Maria Veijalainen rob van Houdt Natalie Leys Audrey Berthier Ilyin Viacheslav Sergey Kharin Julia Morozova Alexander Tikhomirov Pertti Pasanen Department of Environmental and Biological Sciences University of Eastern Finland PO Box 1627 FI-70211 Kuopio Finland VTT Ltd PO Box 1300 FI-33100 Tampere Finland Microbiology Unit Belgian Nuclear Research Centre B-2400 Mol Belgium Institut de Medecine et de Physiologie Spatiales BP 74404 F-31405 Toulouse Cedex France Institute of Bio-Medical Problems 76-A Khorosheu Skoye shosse RU-123007 Moscow Russia Institute of Biophysics SB RAS Akademgorodok Krasnoyarsk RU-660036 Russia

This study aimed to evaluate the suitability of two bioaerosol generation systems（dry and wet generation） for the aerosolization of microorganisms isolated from the International Space Station, and to calibrate the produced bioaerosols to fulfill the requirements of computational fluid dynamics model（CFD） validation. Concentration, stability, size distribution, agglomeration of generated bioaerosol and deposition of bioaerosols were analyzed. In addition, the dispersion of non-viable particles in the air was *** proved that wet generation from microbial suspensions could be used for the production of well-calibrated and stabile bioaerosols for model validation. For the simulation of the natural release of fungal spores, a dry generation method should be used. This study showed that the used CFD model simulated the spread of non-viable particles fairly well. The mathematical deposition model by Lai and Nazaroff could be used to estimate the deposition velocities of bioaerosols on surfaces, although it somewhat underestimated the measured deposition velocities.

关键词： Bioaerosol Modeling CFD Spacecraft Fungi Bacteria

Potential and Determinants of Carbon Storage of Freshwater Swamp Forests in the Niger Delta

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Open Journal of Ecology 2017年第3期7卷 199-210页

作者： Nwabueze I. Igu rob Marchant York Institute for Tropical Ecosystems (KITE) Environment Department University of York York UK Department of Geography and Meteorology Nnamdi Azikiwe University Awka Nigeria

There has been an increase in carbon assessments across global ecosystems, but some ecosystem types remain woefully understudied-freshwater swamp forests are one such ecosystem. Results of the above ground carbon estimates are derived from 16, one-hectare forest plots divided evenly across four forest sites. Results on carbon storage are compared with results on forest use and ownership from interviews with communities living in the area. Since forest use determined the composition, structure and the capacity of the ecosystem to sequester carbon;its above ground carbon decreased from the undisturbed forest plots to the disturbed (modified) sites across the sites. Forest units under communal ownership demonstrated possibilities of actualizing targeted/ restricted use of tree species, as well as targeted carbon storage capacities. Even though joint ownership and management schemes are likely to regulate the use of the ecosystem, and possibly enhance better carbon sequestration, achieving this still seems elusive due to a long existing land tenure system and generational inheritance of (forest) lands across the region. Carbon sequestration across the region will remain under threat unless suitable awareness on forest management is backed up with alternative sources of livelihood, incentives and compensation to the custodians of the forest resources.

关键词： Climate Regulation Forest Carbon Forest Management Mangrove Transition Modified Ecosystems Nigeria REDD+

Dose-response effects of in-feed antibiotics on growth performance and nutrient utilization in weaned pigs fed diets supplemented with yeast-based nucleotides

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Animal Nutrition 2015年第3期1卷 166-169页

作者： Samuel M.Waititu Jung M.Heo rob Patterson Charles M.Nyachoti Department of Animal Science University of Manitoba Department of Animal Science and Biotechnology Chungnam National University Canadian Bio-systems Inc.

Dietary nucleotides are bioactive compounds with the potential to mitigate weaning-associated challenges in piglets. An experiment was conducted to determine the interaction effect of antimicrobial growth promoters(AGP) and a nucleotide-rich yeast extract(NRYE) on growth performance and apparent total tract digestibility(ATTD) of dry matter(DM), crude protein(CP) and gross energy(GE),and to establish whether NRYE supplementation may completely or partially replace AGP in diets for weaned pigs. In phase 1 and 2, corn, wheat, canola meal and soybean meal based diets, which were formulated to contain 0.0 or 0.1% NRYE with 0, 25, 50, 75 or 100% of the recommended AGP dosage, were fed to 108 twenty-one day old piglets(initial body weight 7.11 ± 0.9 kg; mean ±SD) from d 1 to 14 and15 to 28, respectively. Overall, increasing AGP level in NRYE supplemented diets linearly decreased average daily gain(ADG)(P = 0.002) and gain-to-feed ratio(G:F)(P = 0.007); and quadratically decreased ATTD of DM(P = 0.001), CP(P =0.003) and G:F(P = 0.017) during phase 2. Compared with control and pigs fed NRYE with 100% of recommended AGP dosage, pigs fed 0.1% NRYE without AGP had greater(P < 0.05) ADG and G:F in phase 2 and overall. In conclusion, supplementing 0.1% NRYE improved growth performance of pigs but this beneficial effect was reduced by increasing dietary AGP dosage.

关键词： Antimicrobial growth promoters Digestibility Growth performance Piglet Nucleotide-rich yeast extract

基于评价理论介入系统的积极话语分析——以关于中国游客的评论性新闻报道为例

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广西社会科学 2016年第6期 167-171页

作者：钱建伟 rob Law 浙江传媒学院大学外语教学部浙江杭州310018 香港理工大学酒店及旅游业管理学院香港九龙999077

以评价理论介入系统为理论框架,从积极话语分析的角度出发,探究《纽约时报》对近几年我国游客的行为及其形象的报道可以发现,西方主流报刊对中国游客的报道不再是围绕以前普遍认为的消极形象,而是通过对相关不文明行为的定义及事实的梳... 详细信息

以评价理论介入系统为理论框架,从积极话语分析的角度出发,探究《纽约时报》对近几年我国游客的行为及其形象的报道可以发现,西方主流报刊对中国游客的报道不再是围绕以前普遍认为的消极形象,而是通过对相关不文明行为的定义及事实的梳理,借用人际对话空间的压缩或扩展策略,开始转向对中国游客形象的积极建构,从而引导读者做出正面的评价。

关键词：评价理论介入系统积极话语游客形象

Separation of Fault Tolerance and Non-Functional Concerns: Aspect Oriented Patterns and Evaluation

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Journal of Software Engineering and Applications 2010年第4期3卷 303-311页

作者： Kashif Hameed rob Williams Jim Smith University of the West of England Bristol Institute of Technology Bristol UK.

Dependable computer based systems employing fault tolerance and robust software development techniques demand additional error detection and recovery related tasks. This results in tangling of core functionality with these cross cutting non-functional concerns. In this regard current work identifies these dependability related non-functional and cross-cutting concerns and proposes design and implementation solutions in an aspect oriented framework that modularizes and separates them from core functionality. The degree of separation has been quantified using software metrics. A Lego NXT robot based case study has been completed to evaluate the proposed design framework.

关键词： Aspect Oriented Design and Programming Separation of Concerns Executable Assertions Exception Handling Fault Tolerance Software Metrics