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A Subspace Version of the Powell–yuan Trust-Region Algorithm for Equality Constrained Optimization

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Journal of the Operations Research Society of China 2013年第4期1卷 425-451页

作者： Geovani Nunes Grapiglia Jinyun yuan Ya-xiang yuan Departamento de Matemática Universidade Federal do ParanáCentro PolitécnicoCx.postal 19.08181531-980CuritibaParanáBrazil The Capes Foundation Ministry of Education of BrazilCx.postal 25070.040-020BrasíliaDistrito FederalBrazil State Key Laboratory of Scientific/Engineering Computing Institute of Computational Mathematics and Scientific/Engineering ComputingAcademy of Mathematics and Systems ScienceChinese Academy of SciencesZhongguancundonglu 55Beijing 100190P.R.China

This paper studied subspace properties of the Celis–Dennis–Tapia(CDT)subproblem that arises in some trust-region algorithms for equality constrained opti*** analysis is an extension of that presented by Wang and yuan(***.104:241–269,2006)for the standard trust-region *** suitable conditions,it is shown that the trial step obtained from the CDT subproblem is in the subspace spanned by all the gradient vectors of the objective function and of the constraints computed until the current *** on this observation,a subspace version of the Powell–yuan trust-region algorithm is proposed for equality constrained optimization problems where the number of constraints is much lower than the number of variables. The convergence analysis is given and numerical results arealso reported.

关键词： Constrained optimization Trust-region methods Subspace methods

Identification of 13th-14th Century Chinese Handmade Paper Fibers Collected in yuan Dynasty Paper Currencies

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Paper And Biomaterials 2023年第4期8卷 37-43页

作者： Xingxing Liu Danjiancuo yuan Qiulin Han Jiali Chen School of Cultural Heritage Northwest UniversityChognqing400715China Conservation Center Qinghai Provincial MuseumXiningQinghai Province810001China

The earliest paper currencies in existence in China were handcrafted during the yuan *** currencies were scientifically excavated from different ruins or tombs,whereas scientific analyses of the papers are *** study used optical and scanning electron microscopy to examine the fibers collected in yuan dynasty paper currencies in conjunction with the Herzberg staining *** differences in circulation period,paper fibers in both Zhi yuan Tong Xing Bao Chao(two Guan)and Zhong Tong yuan Bao Jiao Chao(one Guan and 500 Wen,issued in Zhi Zheng period)were identified as similar papermaking materials,bast fibers of mulberry *** results indicate that mulberry bark,a durable papermaking material used since ancient times,was mainly utilized as a raw material in these yuan dynasty paper *** fiber identification work solved the critical problem of papermaking material in the yuan dynasty paper currency and provided important information for conserving these precious cultural relics.

关键词： paper currency yuan dynasty mulberry bast fiber identification

Blue-and-White Porcelain of the yuan Dynasty

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China & The World Cultural Exchange 2009年第5期75卷 24-27页

作者： Tan Xiaoling Xin yuan

China is the hometown of porcelain. Over the sweep of the porcelain history of China, blue-and-white porcelain of the yuan Dynasty (1271-

关键词：元代陶瓷青花中国瓷器特殊类型收藏家博物馆白瓷

Elegant,Independent Women in yuan's Modern Gongloi Paintings

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Women of China 2018年第11期 58-59页

作者： yuan LINGLING 不详

作为一名女性艺术家,袁玲玲画笔下的现代女性总是显得自信从容、健康独立。在她看来,一个时代有一个时代的气象,一个时代也有一个时代的女性形象,而这些女性就是她心目中这个时代的最美典型。

关键词：新女性女性艺术家现代女性女性形象从容自信

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贾国平的数字游戏《yuan》创作技法分析

中国音乐 2019年第6期 166-174页

作者：赵媛媛星海音乐学院

中国当代著名作曲家贾国平的作品结构独特,技法严谨,植根于中国传统文化,具有强烈的文人音乐气质。文章聚焦他的早期创作--长笛独奏作品《yuan》,从数列控制下的音高结构、双层曲式复合结构以及音色借鉴互融创新等方面进行分析探讨,揭... 详细信息

中国当代著名作曲家贾国平的作品结构独特,技法严谨,植根于中国传统文化,具有强烈的文人音乐气质。文章聚焦他的早期创作--长笛独奏作品《yuan》,从数列控制下的音高结构、双层曲式复合结构以及音色借鉴互融创新等方面进行分析探讨,揭示了作曲家早期在中西方文化碰撞的背景下,对于技法表达路径的可贵探索,从而开始形成个人化的音乐风格特征。

关键词：序列作曲技术易经序列全音程序列音高结构曲式结构

Guan Sheng yuan (Group) Co. Ltd.

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China's Foreign Trade 1997年第6期 30-31页

作者： Weng Mao Chairman of the Board of Guan Sheng yuan Enterprise Group Managing Director of Guan Sheng yuan Group Co. Ltd.

Guan Sheng yuan was founded in 1918. As a famous, time-honoured brand enterprise of China’s national industry, it has a history of about 80 years. Since 1993 when it was re-estab-lished in accordance with the demand ... 详细信息

关键词： Co high Guan Sheng yuan Ltd Group

Primary Studies on Burnup Estimation of Irradiated Uranium by Dtermining 236U/238U in Contaminated Environmental Samples JIANG Xiao-yan,ZHANG Ji-long,ZOU Wei,Chang Zhi-yuan

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Primary Studies on Burnup Estimation of Irradiated Uranium b...

Pathotype Structure of Magnaporthe grisea in the Fields of Chongyang and yuan'an in Hubei Province,China

作者： JIANG Xiao-yan ZHANG Ji-long ZOU Wei Chang Zhi-yuan

U/U of the environmental sample can indicate the existence of uranium irradiation,and even can be uesd to estimate the burnup of nuclear spent fuel.A study on the burnup estimation of irradiated uranium which was mixed with natural uranium was carried out by measuring the U/U and U/U in the samples by using MC-ICP-MS. According to the equation(1) and(2),a programme for calculating the burnup of the irradiated

关键词：

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Agricultural Science & Technology 2011年第12期12卷 1889-1892页

作者： YANG Xiao-lin ZHANG Shu LU Liang CHANG Xiang-qian yuan Bing YU Da-zhao College of Plant Science and Technology Huazhong Agricultural University Wuhan 430070 Hubei Key Laboratory of Crop Diseases Insect Pest and Weeds Control Instituie of Plant Protection and Soil Science Wuhan 430064

[Objective] This study aimed to explore the pathotype structure of Magnaporthe grisea in Chongyang and yuan'an in Hubei Province,China.[Method] From the rice-growing fields of Chongyang and yuan'an in Hubei Province where rice blast occurs frequently,60 isolates which were pathotyped against two sets of host differentials:Chinese host differentials and CO39 NILs,were ***,20 pathotypes with the six indica host differentials(CO39 NILs) were observed,while 13 pathotypes in four race groups were observed out of the same single spore isolates with Chinese host differentials which consists of three indica cultivars and four japonica *** diversity of the pathotypes of *** populations tested by CO39 NILs was 2.54 and the pathotype 137.1 occurred at predominantly high frequency(21.67%).The diversity of physiological races of *** populations tested by Chinese host differentials was 1.22 and the race group ZA occurred at predominantly high frequency(73.33%).The diversity of physiological races of *** in Chongyang and yuan'an were also ***,the diversity of pathotypes of *** in yuan'an was higher than that in Chongyang with the two sets of the host differentials.[Conclusion] This study provided current information on the pathotype spectrum of *** populations in the rice fields of Hubei Province to allow the formulation of viable strategies for blast resistance breeding programs in Hubei Province.

关键词： Host differentials Magnaporthe grisea Resistance gene Rice blast

CPAFFC Vice-President yuan Mindao attends Fourth Shaoxing Friendship Cities Conference

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Voice of Friendship 2022年第2期 30-30页

作者： Gao yuan 不详

On May 19,CPAFFC Vice-President yuan Mindao attended the Fourth China Shaoxing International Friendship Cities Conference and delivered a speech via *** the successful convening of the conference,yuan said that friendship city relations are an essential channel for subnational as well as friendly people-to-people exchanges,and it has provided a strong basis and pillar for maintaining relations between China and the rest of the *** the establishment of the first pair of sister cities in 1973,the cause of encouraging more Chinese cities to set up sistership with foreign counterparts has borne fruit.

关键词： Friendship sister attend