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Journal of Modern Power Systems and Clean Energy 2020年第4期8卷 657-668页

作者： Alan Louis Gerard Ledwich geoff walker Yateendra Mishra IEEE Queensland University of Technology BrisbaneAustralia

Distribution state estimation(DSE)is an essential part of an active distribution network with high level of distributed energy *** challenges of accurate DSE with limited measurement data is a well-known *** practice,the operation and usability of DSE depend on not only the estimation accuracy but also the ability to predict error *** paper investigates the application of error covariance in DSE by using the augmented complex Kalman filter(ACKF).The Kalman filter method inherently provides state error covariance *** can be utilized to accurately infer the error covariance of other parameters and provide a method to determine optimal measurement locations based on the sensitivity of error covariance to measurement noise *** paper also proposes a generalized formulation of ACKF to allow scalar measurements to be incorporated into the complex-valued *** proposed method is simulated by using modified IEEE 34-bus and IEEE 123-bus test feeders,and randomly generates the load data of complex-valued Wiener *** ACKF method is compared with an equivalent formulation using the traditional weighted least squares(WLS)method and iterated extended Kalman filter(IEKF)method,which shows improved accuracy and computation performance.

关键词： Augmented complex Kalman filter direct load flow distribution system state estimation error variance sensitivity analysis

Rodent management in Aotearoa New Zealand: approaches and challenges to landscape-scale control

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Integrative Zoology 2024年第1期19卷 8-26页

作者： John G.INNES Grant NORBURY Araceli SAMANIEGO Susan walker Deborah J.WILSON Manaaki Whenua-Landcare Research HamiltonNew Zealand Manaaki Whenua-Landcare Research AlexandraNew Zealand Manaaki Whenua-Landcare Research AucklandNew Zealand Manaaki Whenua-Landcare Research DunedinNew Zealand

Aotearoa—New Zealand has only four rodent species,all *** order of arrival,they are Pacific rat Rattus exulans,brown rat ***,house mouse Mus musculus,and black rat *** management in New Zealand aims mainly to conserve indigenous biodiversity rather than to protect crops or manage diseases,as is usual *** describe four major“regimes”and one major vision for rodent control in New Zealand to meet ecological restoration *** challenges for island eradications are for large islands that are remote or populated by *** 1080 is the only large-scale(tens of thousands of hectares)option for black rat control,but its application requires adjustment to counter subsequent rapid black rat ***“ecosanctuaries”(mean 720 ha)use ground-based traps and poisons to target mainly black rats and face constant *** with mammal-resistant fences(up to 3500 ha)limit reinvasion and target more pest species and have enabled the return of previously extirpated taxa to the main *** Free 2050 aims to eradicate the rat species(but not mice)plus some other introduced mammals from New Zealand by *** vision is not attainable with current tools,but research and experimental management is exploring techniques and *** large scale(to 100000 ha)at which black rats are now targeted for control to extremely low abundance seems to be unique to New Zealand.

关键词： black rat brown rat eradication house mouse rodent control

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2009显示周回顾:触控技术

现代显示 2010年第4期 8-12页

作者： geoff walker 黄维 NextWindow公司京东方科技集团股份有限公司

在2009显示周上,触控技术取得了令人惊讶的突破,触控屏数目剧增,并且性能也得到提升。

关键词：触控技术投影型电容式 LCD盒内式数字电阻式

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形形色色的触摸技术

现代显示 2007年第4期 5-12页

作者： geoff walker 黄华（译）石琳（译）不详北京科技大学

在显示行业中,没有什么技术能像触摸屏技术一样迅速地发展。目前平板显示技术不断被更新改进,同时也引入了一些新技术。本文介绍了触摸技术的最新发展状况。

关键词：触摸屏显示技术声学脉冲识别色散信号技术

Open to Chinese Democracy

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China Today 2024年第3期73卷 46-48页

作者： ROBERT walker Beijing Normal University

The National People’s Congress meets every year for about a week in *** there is much more to China’s *** 2,977 elected deputies will be attending the second plenary meeting of the 14th National People’s Congress at the Great Hall of the People in Beijing in early ***,the world’s largest legislative body,is the most striking manifestation of China’s governance system,whole-process people’s *** outsiders,the gathering seems symbolic and ***,the deliberation undertaken by the unpaid deputies in the week that they are together is merely the most visible element in a complex consultative system of government.

关键词： gathering striking system

Resisting Economic Coercion

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China Today 2024年第6期73卷 20-23页

作者： ROBERT walker Green Templeton College University of Oxford The Jingshi Academy at Beijing Normal University The Royal Society of Arts The Academy of Social Sciences

PROFESSOR Alena Douhan is a Special Rapporteur for the United Nations and a human rights *** visited China in May as part of her mandate to investigate the humanitarian consequences of the unilateral coercive measures imposed on China.“Unilateral coercive measures”are what other people tend to call sanctions-or trade embargoes or punitive *** her visit,Professor Douhan met government officials,representatives of the legislative and judicial branches,members of the diplomatic community and academia,and stakeholders from business and non-governmental organisations.

关键词： consequences imposed measures

Talking Justice,the Chinese Way

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China Today 2024年第5期73卷 50-52页

作者： ROBERT walker Beijing Normal University Green Templeton College University of Oxford Royal Society of Arts and the Academy of Social Sciences in the U.K.

Western legal scholars learn from China’s approach to justice at a seminar held at Oxford *** can work better than prosecution and prison.

关键词： Way legal scholars

Just 19: Love on the Beijing Subway

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China Today 2024年第1期73卷 72-75页

作者： ROBERT walker Beijing Normal University Green Templeton College University of Oxford Royal Society of Arts the Academy of Social Sciences in the U.K

Travel through Chinese culture on Beijing’s latest subway line and learn all about *** foreign visitors to Beijing never travel on the city’s *** is a sad fact because they will never truly understand the Chinese *** will not meet the grandmother temporarily lost in memories of childhood back in a time when dreams were impossible since everyone was still poor and *** grandson sees things *** fears that if he does not make it rich in modern China,his life will be considered a failure.

关键词： everyone Just travel

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SID2007显示周上的触摸屏

现代显示 2008年第1期 30-31,62页

作者： geoff walker 代永平（译）不详南开大学

在2007显示周的展台上有超过40家公司涉足触摸技术,这是显示行业中从未受到如此关注的部分。对显示周上的重大通告和动向进行概况就是一个好的开端。

关键词： SID2007显示周触摸屏户外环境下的可读性

Aiming Far Beyond the Moon

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China Today 2024年第8期73卷 38-40页

作者： ROBERT walker Green Templeton College University of Oxford Beijing Normal University Royal Society of Arts Academy of Social Sciences in the U.K.

Understanding the importance that the third plenary session of the 20th Central Committee of the Communist Party of China(CPC)attached to science and technological ***’E is the Chinese moon *** after her,the Chang’e... 详细信息

关键词： development. attached Beyond