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[期刊论文] 作者:段复建,杨冲,李向利, 来源:应用数学 年份:2022
共轭梯度法是求解大规模无约束优化问题的经典方法之一.基于搜索方向矩阵的谱条件数,给出了一个Dai-Liao(DL)共轭梯度法中参数的自适应形式,提出一种自适应DL共轭梯度算法.在适当的条件下,对于一致凸的目标函数证明了该方法具有全局收敛性...
[期刊论文] 作者:张艳,薛云飞,卜春阳,刘学生,李倜,张昕,金玉东,万传彪,孙跃武, 来源:中国煤炭地质 年份:2022
依据内蒙古自治区海拉尔盆地北部Hong-5井1631~2270m井段8块样品的孢粉鉴定数据,建立了Cica-tricosisporites-Protoconiferus-Perinopollenites...
[期刊论文] 作者:田颖,蔡吾豪,杨子祥,陈峰,金锐博,周强, 来源:物理学报 年份:2022
Hong-Ou-Mandel(HOM)干涉是光子的一种非经典效应,在量子光学中起到重要作用.偏硼酸钡(b-barium borate,BBO)具有较高的非线性效率,常被用来产生双光子态,进而展示HOM干涉...
[期刊论文] 作者:Zi-xiao WANG,James NTAMBARA,Yan LU,Wei DAI,Rui-jun MENG,Dan-min QIAN, 来源:当代医学科学(英文) 年份:2022
health care system,and has increasingly become a major public health problem in some areas,such as Hong...
[期刊论文] 作者:Ji Jing, 来源:北京周报(英文版) 年份:2022
Hong Kong Special Administrative Region (HKSAR) has seen a surge in COVID-19 cases, with the number of...
[期刊论文] 作者:Tao Zihui, 来源:北京周报(英文版) 年份:2022
While helping neighboring Hong Kong Special Administrative Region battle its fifth pandemic wave, Shenzhen...
[期刊论文] 作者:王克贤, 来源:疯狂英语·新策略 年份:2022
The Argentina Citizens Martial Arts Club, founded and chaired by Chen Min and her hus-band Hong Wenwu...
[期刊论文] 作者:GE LIJUN, 来源:中国与非洲(英文版) 年份:2022
(CNOOC) destined for Hong Kong Special Administrative Region of China was delivered on September 29,...
[期刊论文] 作者:Sai Leung Ng, 来源:国际灾害风险科学学报(英文版) 年份:2022
disaster preparedness behavior.An intercept survey(N=286)was conducted at a typhoon-prone district of Hong...
[期刊论文] 作者:Zhicong Yin,Huijun Wang,Hong Liao,Ke Fan,Botao Zhou, 来源:大气和海洋科学快报(英文版) 年份:2022
复合型大气污染对中国环境,健康和经济存在巨大的不利影响.2013年以来的减排措施有效改善了空气质量.目前,我国已进入大气污染与气候变化协同治理的关键阶段.在季节-年际尺度上,对大气污染(霾,臭氧和沙尘暴)的准确预测可以为有关部门的减排措施提供有效的科技技......
[期刊论文] 作者:, 来源:中国与非洲(英文版) 年份:2022
On November 14, 2021, the Mawan Smart Port, the first smart port in the Guangdong-Hong Kong-Macao Greater...
[期刊论文] 作者:, 来源:重庆与世界 年份:2022
Chongqing Culture and Tourism Promotion in Guangdong-Hong Kong-Macao Greater Bay Area was held in Shenzhen...
[期刊论文] 作者:Beidou Xi,Tianxue Yang,Rui Zhao,Lingyun Jing,Tiancheng Gong,Qifei Huang,Li\'an Hou, 来源:工程(英文) 年份:2022
1.IntroductionrnCoordinated regional development is one of the national strategies in the new era[1].The fifth plenary session of the 19th Central Committee of the Communist Party of China(CPC)proposed to“promote coordinated regional devel......
[期刊论文] 作者:张晓惠, 葛常理, 张凤生, 陈琳婧, 陈炳华, 来源:福建师范大学学报(自然科学版 年份:2022
C.Christensen)、冠萼线柱苣苔(Rhynchotechum formosanum Hatusima)、两头连(Veronicastrum villosulum var.parviflorum Chin et Hong...
[期刊论文] 作者:刘佳,李金鞠, 来源:中国人兽共患病学报 年份:2022
基因特征,为防控提供科学依据.方法 收集2018-2020年克拉玛依市甲型H3N2流感毒株进行HA和NA基因序列测定,运用Mega软件与疫苗株进行序列比对和分析.结果 18株毒株 HA 基因与 A/Hong...Kong/4801/2014同源性高于 A/Kansas/14/2017,NA 基因与 A/Hong Kong/4801/2014同源性低于A/Kansas/14/2017.相对疫苗株,克拉玛依市毒株已出现氨基酸同时在...
[期刊论文] 作者:MENG Nan,LIAO Yaozu, 来源:东华大学学报(英文版) 年份:2022
Ferroelectric polymer poly ( vinylidene fluoride ) ( PVDF) has received great research interest because of its special electroactive properties which are strongly dependent on the crystalline structures and in turn processing conditions. Th......
[期刊论文] 作者:Yongxia HAO,Lianxing LIAO, 来源:数学研究及应用 年份:2022
The purpose of this paper is to develop a method to construct the Pythagorean-hodograph hyperbolic(PH-H)curves based on the good geometric properties of PH curves and algebraic hyperbolic curves.The definition of Pythagorean-hodograph hyper......
[期刊论文] 作者:Ying-Ying Li,Rong-Zhen Liao, 来源:中国化学快报(英文版) 年份:2022
Vitamin B12 (macrocyclic cobalamin) has been recently reported to be capable of electrochemically cat-alyzing water oxidation in a neutral phosphate buffer solution.In this work,density functional calcula-tions were employed to elucidate th......
[期刊论文] 作者:Chunxiao Zhao,Baojun Yang,Rui Liao,Maoxin Hong,Shichao Yu,Jun Wang,Guanzhou Qiu, 来源:中国化学工程学报(英文版) 年份:2022
The bioleaching of chalcopyrite is low cost and environmentally friendly,but the leaching rate is low.To explore the mechanism of chalcopyrite bioleaching and improve its leaching rate,the effect and mecha-nism of manganese ions (Mn2+) and ......
[期刊论文] 作者:王立冬,陈艳艳,汤行昊,张丽琼,梁海燕,闫小莉, 来源:山地农业生物学报 年份:2022
为明确3个珍贵树种大叶青冈(Cyclobalanopsis jensenniana(Hand,-Mzt.)Cheng et T.Hong)、赤皮青冈(Cyclobalanopsis gilva(Blume...
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