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Covid Positive

城市漫步（GBA版） 2023年第3期 60-61页

作者： leo Stanley 不详

It has been a long three years since the world was first introduced to the COVID-19 pandemic,and now that the country is reopening,it's a time for reflection on the lessons *** a resident of Shanghai since 2009,1 have been grateful for the numerous opportunities that this city has provided for my family.I raised my two sons here,and they have both been educated and made friends in this vibrant city.

关键词： raised friends numerous

China’s Pet Economy Is Ushering in Rapid Development

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China's Foreign Trade 2023年第2期 44-45页

作者： leo Zhang 不详

In recent years,the growth in the number of pet owners and the number of pets in China,combined with the improvement in pet owners’consumption power,has promoted the growth of pet consumption ***-related consumption has doubled After a long period of expansion,China’s pet market is poised to enter a new phase of strong growth,supported by increasing urbanization,growing demand for and awareness of pets among the younger generation,and a growing need for *** are also becoming an important part of more and more Chinese families.

关键词： becoming has younger

Night Economy Glows with New Vitality

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中国对外贸易:英文版 2023年第4期 57-60页

作者： leo Zhang 不详

According to data from ii-Media Research,China’s night economy has grown rapidly since *** the end of 2020,the scale of China’s night economy had exceeded RMB 30 trillion,an increase of 5.0%over the same period of last year,and it is expected to exceed RMB 48 trillion in *** to the latest survey data of the Ocean Engine City Institute in 2023,more than 60%of respondents will go out for activities or consumption at night,among which citizens in high-speed cities have a higher preference for going out at night because of the relatively perfect urban infrastructure.

关键词： Economy perfect night

China Smart Phone Market Is Expected to Rebound

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China's Foreign Trade 2023年第6期 43-44页

作者： leo Zhang 不详

With the gradual improvement and recovery of the national economy and consumer spending power since the pandemic,the smart phone market in China finally started to look hopeful near the end of 2023,and is expected to rebound for the first time in the past ten ***,the IDC released ten insights into the smart phone market in China in 2024 in terms of future overall market development trends,industry technology upgrading direction and changes in consumer demand.

关键词： Market upgrading smart

A One-Pot Strategy for the Synthesis of β-Substituted Rhoda-and Irida-Carbolong Complexes

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Chinese Journal of Chemistry 2022年第15期40卷 1777-1784页

作者： Binbin Xu Wei Mao Chengcheng Wu Jinhua Li Zhengyu Lu Ming Luo Liu leo Liu Lingling Mao Dafa Chen Haiping Xia Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis Department of ChemistrySouthern University of Science and TechnologyShenzhenGuangdong 518055China

Comprehensive Summary Starting from an organic multiyne,three steps are normally needed for the preparation of non-βphosphonium functionalized rhodaand irida-carbolong ***,a one-pot strategy,by mixing a multiyne,a nucleophile,and Rhcl(CO)(PPh_(3))_(2)/AgBF_(4)or[Ir(CH:CN)(CO)(PPh_(3))_(2)]BF_(4),was developed to achieve a series ofβfunctionalized rhoda-and irida-carbolong ***β-substituents in these complexes can be various C-,N-and O-centered groups,dependent on the nucleophiles *** strategy provides a new convenient route to construct carbolong complexes,which is important for the further development of carbolong chemistry.

关键词： Carbolong chemistry Metallacycles Rhodium Iridium Tridentate ligands

Transfer of an Aluminum Atom:An Avenue to Aluminum Heterocycles

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CCS Chemistry 2023年第9期5卷 2059-2068页

作者： Xin Zhang Hongyu Wang Xiaofang Lan Yanbo Mei David A.Ruiz Liu leo Liu Department of Chemistry and Guangdong Provincial Key Laboratory of Catalysis Southern University of Science and TechnologyShenzhen 518055

Synthetic chemistry enables constructing molecular complexity using simple substrates through simple *** disclose an unprecedented Al-atom transfer strategy for the synthesis of aluminum heterocycles with high atom *** strategy involves an effective cycloaddition of a free carbazolyl-aluminylene with unsaturated hydrocarbons,followed by facile cleavage of the N-Al *** aluminylene formally behaves as a tetra-active ambiphilic[Al+]cation transfer reagent in a two-step manner,and the only byproduct is a carbazolide salt that can be utilized to regenerate the *** carbazolyl Al-heterocycles show unique luminescent properties,in which one exhibits dual *** approach not only has a significant impact on the future design of single-atom addition reactions but also paves the way for emissive materials based on Al-heterocycles.

关键词： aluminum heterocycles atom transfer dual emission alumole aluminylene

Mushroomβ-glucan and polyphenol formulations as natural immunity boosters and balancers:nature of the application

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Food Science and Human Wellness 2023年第2期12卷 378-396页

作者： Maja Kozarski Anita Klaus leo van Griensven Dragica Jakovljevic Nina Todorovic Wan Abd Al Qadr Imad Wan-Mohtar Jovana Vunduk Institute of Food Technology and Biochemistry Faculty of AgricultureUniversity of BelgradeBelgrade 11080Serbia Plant Research International Wageningen University and Research CentreWageningen 6700 AAThe Netherlands Institute of Chemistry Technology and MetallurgyUniversity of BelgradeBelgrade 11000Serbia Functional Omics and Bioprocess Development Laboratory Institute of Biological SciencesFaculty of ScienceUniversiti MalayaKuala Lumpur 50603Malaysia Institute of General and Physical Chemistry University of BelgradeBelgrade 11158Serbia

Mushrooms are experiencing a kind of renaissance as a part of the contemporary human *** valuable organisms are more than food,they fit in perfectly as a novel market group known as ***-balancing mushroom dietary fibers and secondary metabolites such as polyphenols are the main focus of the healthcare *** and cosmetic companies are increasingly using mushroom extracts rich in these *** review considers the basic molecular immunomodulatory mechanisms of action of the most commonly used mushroom dietary fibers,β-*** literature data on their bioavailability,metabolic transformations,preclinical and human clinical research,and safety are *** mechanisms of polyphenol ingredients are also *** molecules present great potential in the design of the new immunity balancer formulations according to their widespread structural ***,we draw attention to the perspectives of modern trends in mushroom nutraceutical and cosmeceutical formulations to strengthen and balance immunity.

关键词： Mushrooms β-Glucan Polyphenols Immunity boosters Superfood Natural cosmetics

基于计算缩放的光滑粒子水动力学方法模拟飞机油箱剧烈晃动问题

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Acta Mechanica Sinica 2023年第2期39卷 39-48页

作者： Calderon-Sanchez Javier Martinez-Carrascal Jon Gonzalez leo Miguel CEHINAV Model Basin ETSI NavalesUniversidad Politécnica de MadridMadrid28040Spain

大型民用飞机的机翼设计用于承受从大气阵风到湍流到着陆冲击的各种载荷,机翼是需要进一步研究的重要结构.改进机翼设计的主要方法之一是分析晃动对承载液体的柔性机翼状结构动力学的阻尼效应.这将通过开发实验装置来实现,该装置将有助... 详细信息

大型民用飞机的机翼设计用于承受从大气阵风到湍流到着陆冲击的各种载荷,机翼是需要进一步研究的重要结构.改进机翼设计的主要方法之一是分析晃动对承载液体的柔性机翼状结构动力学的阻尼效应.这将通过开发实验装置来实现,该装置将有助于建立和再现涉及物理领域的数值模型.因此,本工作的目的是使用数值方法光滑粒子流体动力学(SPH)作为主要数值工具,分析晃动在降低飞机结构设计载荷方面的影响.本研究中的一个关键因素是对比例实验的需求,这是评估计算工具是否能够准确近似不同比例的注册测量值的必要步骤.为此,建立了一个垂直振动水槽的数值模型,该模型是一个完全耦合的流固耦合问题.该结构通过质量-弹簧-阻尼器系统建模,对于内部流体,使用δ-SPH方法.特别是,研究了两个开放性问题:第一个问题是,当储罐的初始加速度是标准重力值的十倍时,重力对阻尼和能量耗散现象的影响程度;第二种问题旨在确认,当根据量纲分析对问题参数进行缩放时,SPH方程正确地再现了缩放定律.

关键词： SPH Sloshing Gravity Computational scaling

Community Detection with the Weighted Parsimony Criterion

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Journal of Systems Science & Complexity 2015年第3期28卷 517-545页

作者： BETTINELLI Andrea HANSEN Pierre LIBERTI leo Dipartimento di Ingegneria dell’Energia Elettrica e Dell’Informazione Università di Bologna Viale del Risorgimento 2 40136 Bologna Italy Groupe d’études et de Recherche en Analyse des Décisions Hautes tudes Commerciales Montréal Canada LIX cole Polytechnique F-91128 Palaiseau France CNRS LIX Ecole Polytechnique 91128 Palaiseau France

Community detection in networks has been studied extensively in the last decade. Many criteria, expressing the quality of the partitions obtained, as well as a few exact algorithms and a large number of heuristics have been proposed. The parsimony criterion consists in minimizing the number of edges added or removed from the given network in order to transform it into a set of disjoint *** Zhang, Qiu and Zhang have proposed a weighted parsimony model in which a weight coefficient is introduced to balance the numbers of inserted and deleted edges. These authors propose rules to select a good value of the coefficient, use simulated annealing to find optimal or near-optimal solutions and solve a series of real and artificial instances. In the present paper, an algorithm is proposed for solving exactly the weighted parsimony problem for all values of the parameter. This algorithm is based on iteratively solving the problem for a set of given values of the parameter using a row generation algorithm. This procedure is combined with a search procedure to find all lowest breakpoints of the value curve(i.e., the weighted sum of inserted and deleted edges). Computational results on a series of artificial and real world networks from the literature are reported. It appears that several partitions for the same network may be informative and that the set of solutions usually contains at least one intuitively appealing partition.

关键词：网络社区简约加权检测标准生成算法权重系数模拟退火