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Journal of Rare Earths 2021年第2期39卷 113-120页

作者： xiangjie tang Qi Liu Chuangyu Wei Xuehui Lv Zhicheng Jin Yanli Chen Jianzhuang Jiang School of Materials Science and Engineering College of ScienceChina University of Petroleum(East China)Qingdao 266580China Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials Department of ChemistryUniversity of Science and Technology BeijingBeijing 100083China

In recent years,sandwich-type rare earth tetrapyrrole derivatives,have attracted more and more attention as material for conductimetric *** have not only great chemical stability and processability,but also flexible molecular structure,which is a key to adjustable semiconductor *** this mini review,we focus mainly on the development of tetrapyrrolato-rare earth sandwich-type complexes as the semiconducting active layer in the gas sensors published in the last ten years(2010-2020).The main part includes two *** the single component gas sensing of sandwich rare earth tetrapyrrole complexes,we describe the influence factors of the single-component semiconducting active layer on the sensing performance of tetrapyrrolato-rare earth sandwich-type complexes,including substituents,central metals and π-conjugate *** the multi-component gas sensors,the synergistic effect between tetrapyrrolato-rare earth sandwich-type complex and other materials on improving sensitivity and conductivity has been discussed briefly.

关键词： Sandwich-type rare earth tetrapyrrole complex Phthalocyanine Gas sensor Rare earths

In situ construction of Co/N/C-based heterojunction on biomass-derived hierarchical porous carbon with stable active sites using a Co-N protective strategy for high-efficiency ORR,OER and HER trifunctional electrocatalysts

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Journal of Energy Chemistry 2021年第3期30卷 626-638页

作者： Xuehui Lv Zuoxu Xiao Haoyuan Wang Xinlong Wang Lulu Shan Fuling Wang Chuangyu Wei xiangjie tang Yanli Chen College of Science School of Materials Science and EngineeringChina University of Petroleum(East China)Qingdao 266580ShandongChina

The facile designs and fabrication of noble metal-free electrocatalysts are highly required to achieve multifunctional catalytic activity with excellent stability in Zn-air batteries,fuel cells and water splitting ***,a heterostructure engineering is applied to construct the high performance Co,Ncontaining carbon-based multifunctional electrocatalysts with the feature of isotype(i.e.n-n type Co_(2)N_(0.67)-BHPC)and anisotype(i.e.p-n type Co_(2)O_(3)-BHPC)heterojunctions for ORR,OER and *** nn type Co_(2)N_(0.67)-BHPC,in which biomass(***)-derived hierarchical porous carbon(BHPC)incorporated with nonstoichiometric active species Co_(2)N_(0.67),is fabricated by using an in situ protective strategy of macrocyclic central Co-N_(4) from CoTPP(5,10,15,20-tetrakis(phenyl)porphyrinato cobalt)precursor through the intermolecularπ-πinteractions between CoTPP and its metal-free analogue H_(2) ***,an unprotected strategy of macrocyclic central Co-N_(4) from CoTPP can afford the anisotype Co_(2)O_(3)-BHPC p-n *** as-prepared n-n type Co_(2)N_(0.67)-BHPC heterojunction exhibited a higher density of Co-based active sites with outstanding stability and more efficient charge transfer at the isotype heterojunction interface in comparison with p-n type Co_(2)O_(3)-BHPC ***,for ORR,Co_(2)N_(0.67)-BHPC exhibits the more positive onset and half-wave potentials of 0.93 and 0.86 V ***,respectively,superior to those of the commercial 20 wt%Pt/C and most of Cobased catalysts reported so *** drive a current density of 10 mA cm^(-2),Co_(2)N_(0.67)-BHPC also shows the lower overpotentials of 0.34 and 0.21 V *** for OER and HER,***,the Zn-air battery equipped with Co_(2)N_(0.67)-BHPC displays higher maximum power density(109 mW cm^(-2))and charge-discharge cycle ***,the anisotype heterojunction Co_(2)O_(3)-BHPC as trifunctional electrocatalyst reveals evidently photoelectroc

关键词： Anisotype heterojunction Isotype heterojunction Multifunctional catalyst Biomass-derived Prophyrin

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碎冰航道中航行船舶阻力数值预报

振动与冲击 2023年第23期42卷 293-299,306页

作者：唐湘杰邹明邹早建邹璐上海交通大学船舶海洋与建筑工程学院上海200240 中国船舶及海洋工程设计研究院上海200011

北极运输船舶常航行于由破冰船开辟的碎冰航道中;尽管这避免了船舶与层冰碰撞引起的巨大冰阻力,但船舶与航道中碎冰的相互作用受到两侧层冰的影响,进而会对船舶的航行性能产生影响。目前,碎冰航道两侧层冰对船舶航行性能的影响尚未得到... 详细信息

北极运输船舶常航行于由破冰船开辟的碎冰航道中;尽管这避免了船舶与层冰碰撞引起的巨大冰阻力,但船舶与航道中碎冰的相互作用受到两侧层冰的影响,进而会对船舶的航行性能产生影响。目前,碎冰航道两侧层冰对船舶航行性能的影响尚未得到充分研究,是否考虑这一影响是北极船舶设计的一个重要问题,采用CFD-DEM(computational fluid dynamics-discrete element method)耦合方法模拟船舶在碎冰航道中的航行过程并分析船-碎冰相互作用特点,进而对船舶阻力进行数值预报。首先,开展了网格和时间步长的收敛性分析以评估数值误差和不确定度,验证了数值模型的可靠性;在此基础上的预报结果表明,由于两侧层冰对船舶兴波产生影响,船舶水阻力随航道宽度的减小而小幅增大且主要为压阻力的增加;船舶冰阻力随航道宽度的减小而迅速增大,船体两侧的碎冰堆积现象是导致冰阻力增大的主要原因。

关键词：碎冰航道船-冰相互作用船舶阻力计算液体力学-离散单元法(CFD-DEM)

Early Detection of the Emerging SARS-CoV-2 BA.2.86 Lineage Through Wastewater Surveillance Using a Mediator Probe PCR Assay—Shenzhen City,Guangdong Province,China,2023

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China CDC weekly 2024年第15期6卷 332-338,I0008,I0009页

作者： Chen Du Yuejing Peng Ziquan Lyu Zhijiao Yue Yulin Fu xiangjie Yao Jinzhen tang Guixian Luo Chenxi Gao Shisong Fang Xiaolu Shi Chengsong Wan Yinghui Li Qinghua Hu Shenzhen Center for Disease Control and Prevention Shenzhen CityGuangdong ProvinceChina BSL-3 Laboratory(Guangdong) Guangdong Provincial Key Laboratory of Tropical Disease ResearchSchool of Public HealthSouthern Medical UniversityGuangzhou CityGuangdong ProvinceChina Department of Public Health Laboratory Sciences School of Public HealthHengyang Medical SchoolUniversity of South ChinaHengyang CityHunan ProvinceChina School of Public Health Shanxi Medical UniversityTaiyuan CityShanxi ProvinceChina

Introduction:The emergence of the new severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)Omicron sublineage,BA.2.86,has sparked global public health concerns for its potential heightened transmissibility and immune *** data from Shenzhen’s city-wide wastewater surveillance system,we highlight the presence of the BA.2.86 lineage in ***:A mediator probe polymerase chain reaction(PCR)assay was developed to detect the BA.2.86 lineage in wastewater by targeting a specific mutation(Spike:A264D).Between September 19 and December 10,2023,781 wastewater samples from 38 wastewater treatment plants(WWTPs)and 9 pump stations in ten districts of Shenzhen were *** multiple short-amplicon sequencing,three positive samples were ***:The BA.2.86 lineage was identified in the wastewater of Futian and Nanshan districts in Shenzhen on December 2,*** December 2 to 10,a total of 21 BA.2.86-positive wastewater samples were found across 6 districts(Futian,Nanshan,Longhua,Baoan,Longgang,and Luohu)in *** weighted average viral load of the BA.2.86 lineage in Shenzhen’s wastewater was 43.5 copies/L on December 2,increased to 219.8 copies/L on December 4,and then decreased to approximately 100 copies/L on December 6,8,and ***:The mediator probe PCR assay,designed for swift detection of low viral concentrations of the BA.2.86 lineage in wastewater samples,shows promise for detecting different SARS-CoV-2 *** surveillance could serve as an early detection system for promptly identifying specific SARS-CoV-2 variants as they emerge.

关键词： wastewater Wastewater district

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生活方式型移民研究综述

地理科学进展 2015年第9期34卷 1096-1106页

作者：唐香姐徐红罡中山大学旅游学院广州510275

在经济比较发达以及后现代社会带来个人主体性增强的背景下,以寻找更好的生活方式的迁移——"生活方式型移民"成为一种重要的人口流动类型,并受到西方学者的高度关注。在中国,生活方式型移民开始萌芽,然而研究较少,目前主要集中在对生... 详细信息

在经济比较发达以及后现代社会带来个人主体性增强的背景下,以寻找更好的生活方式的迁移——"生活方式型移民"成为一种重要的人口流动类型,并受到西方学者的高度关注。在中国,生活方式型移民开始萌芽,然而研究较少,目前主要集中在对生活方式型旅游企业主移民研究;西方的研究则涉及退休移民、生活方式型企业主移民等多种类型,但尚未形成完整的研究体系,对于生活方式型移民概念界定及其类型划分较为杂乱。为此,本文从现有文献出发,试图对这类移民的研究内容进行介绍、探讨、厘清和评析,首先确定"生活方式型移民"的概念框架,根据生产和消费在时间和空间上的结合状态将生活方式型移民划分为三种类型,并从社会交往、生活状态、旅游行为和自我认知等方面综述其迁移后的行为表现及由此产生的影响,希望借此促进中国学者对生活方式型移民的关注。

关键词：生活方式移民退休移民企业主移民动机

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大理打工旅游者的流动力研究

旅游学刊 2019年第10期34卷 137-146页

作者：唐香姐徐红罡澳门大学工商管理学院澳门999078 中山大学旅游学院广东广州510275

打工旅游作为一种新的人口流动现象,模糊工作和旅游之间的界限,对传统的旅游者研究提出挑战。因此,国际上对打工旅游者的研究呈现增长趋势,但这些研究并没有解释打工旅游者如何能够实现工作和旅游的结合,进而使他们的流动成为可能。文... 详细信息

打工旅游作为一种新的人口流动现象,模糊工作和旅游之间的界限,对传统的旅游者研究提出挑战。因此,国际上对打工旅游者的研究呈现增长趋势,但这些研究并没有解释打工旅游者如何能够实现工作和旅游的结合,进而使他们的流动成为可能。文章以大理古城的打工旅游者为例,通过访谈和观察,并借助流动力的分析框架解释打工旅游者产生的原因。研究发现:打工旅游者在流动动机和经济能力不相匹配的情况下,工作和旅游相结合成为他们增强流动能力、实现流动的一种选择。而一些条件如生活方式型旅游小企业主移民在大理集聚产生的劳动力需求等目的地环境,打工旅游者自身具备的能力,他们与雇主对自由随性休闲生活的相似追求和共同的旅游兴趣等,增强打工旅游者的流动力,促使工作和旅游的结合,进而产生打工旅游现象。在流动成为一种生活方式的时代背景下,工作和旅游的对立已不足以成为旅游者的界定标准。

关键词：打工旅游者流动力大理生活方式型旅游小企业主移民工作和旅游

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叶片后缘加厚对轴流风机性能的影响

流体机械 2022年第1期50卷 45-52页

作者：汤湘杰李科军应立军中南大学交通运输工程学院长沙410075 中南林业科技大学材料科学与工程学院长沙410004

为解决NACA65系列翼型叶片后缘轮廓线内切圆半径收敛至0引起的铸造工艺问题,采用三次多项式函数生成叶片后缘厚度函数,精确调整叶片后缘末端厚度。基于Ansys软件对不同叶片后缘厚度的风机进行流体仿真,并分析其气动性能与静力结构特性... 详细信息

为解决NACA65系列翼型叶片后缘轮廓线内切圆半径收敛至0引起的铸造工艺问题,采用三次多项式函数生成叶片后缘厚度函数,精确调整叶片后缘末端厚度。基于Ansys软件对不同叶片后缘厚度的风机进行流体仿真,并分析其气动性能与静力结构特性。结果表明叶片后缘增厚使得叶片附面层分离损失增加,尾迹与叶栅主流区的掺混损失增大。叶片载荷分析表明,1.5 mm-0.80翼型、3 mm-0.80翼型风机叶片所受的最大等效应力分别增加0.59%,1.58%,叶片出风口位置处的等效应力随着厚度增加而略减。1.5 mm为风机叶片后缘增厚的推荐尺寸,其风机最大效率为88.07%,是原翼型风机效率的99.67%,全压曲线与原风机的全压曲线基本重合。

关键词：轴流风机叶片后缘厚度函数气动性能流固耦合

复方黄柏液坐浴辅助内口封闭联合负压封闭引流技术治疗高位肛周脓肿的效果

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中国社区医师 2024年第3期40卷 85-87页

作者：唐淑芳张湘杰深圳市中医肛肠医院(福田)肛肠科广东深圳518000 深圳出入境边防检查总站医院外五科广东深圳518000

目的:分析复方黄柏液坐浴辅助内口封闭联合负压封闭引流技术治疗高位肛周脓肿的效果。方法:选取2020年4月—2022年11月深圳出入境边防检查总站医院收治的100例高位肛周脓肿患者作为研究对象,随机分为两组,各50例。对照组采取内口封闭联... 详细信息

目的:分析复方黄柏液坐浴辅助内口封闭联合负压封闭引流技术治疗高位肛周脓肿的效果。方法:选取2020年4月—2022年11月深圳出入境边防检查总站医院收治的100例高位肛周脓肿患者作为研究对象,随机分为两组,各50例。对照组采取内口封闭联合负压封闭引流技术治疗,观察组在对照组基础上实施复方黄柏液坐浴治疗。比较两组治疗效果。结果:观察组治疗总有效率高于对照组,差异有统计学意义(P=0.014)。观察组创面疼痛以及创面水肿评分低于对照组,愈合时间短于对照组,差异有统计学意义(P0.05);治疗后,两组CRP、TNF-α、IL-6水平低于治疗前,且观察组低于对照组,差异有统计学意义(P0.05);治疗后,两组5-HT、NE、SP水平低于治疗前,且观察组低于对照组,差异有统计学意义(P<0.05)。结论:复方黄柏液坐浴辅助内口封闭联合负压封闭引流技术治疗高位肛周脓肿的效果显著,可促进创面恢复,减轻炎性反应,缓解疼痛。

关键词：高位肛周脓肿内口封闭负压封闭引流技术复方黄柏液

Prediction of landslide displacement with dynamic features using intelligent approaches

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International Journal of Mining Science and Technology 2022年第3期32卷 539-549页

作者： Yonggang Zhang Jun tang Yungming Cheng Lei Huang Fei Guo xiangjie Yin Na Li Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education and Department of Geotechnical EngineeringTongji UniversityShanghai 200092China College of Civil Engineering Huaqiao UniversityXiamen 316000China School of Civil Engineering Qingdao University of TechnologyQingdao 266000China College of Civil Engineering and Architecture Wenzhou UniversityWenzhou 325000China Shenzhen Antai Data Monitoring Technology Co. Ltd.Shenzhen 518000China Key Laboratory of Disaster Prevention and Mitigation of Hubei Province China Three Gorges UniversityYichang 443002China School of Resources&Safety Engineering Central South UniversityChangsha 410083China

Landslide displacement prediction can enhance the efficacy of landslide monitoring system,and the prediction of the periodic displacement is particularly *** the previous studies,static regression models(e.g.,support vector machine(SVM))were mostly used for predicting the periodic *** models may have bad performances,when the dynamic features of landslide triggers are *** paper proposes a method for predicting the landslide displacement in a dynamic manner,based on the gated recurrent unit(GRU)neural network and complete ensemble empirical decomposition with adaptive noise(CEEMDAN).The CEEMDAN is used to decompose the training data,and the GRU is subsequently used for predicting the periodic *** procedures of the proposed method were illustrated by a case study in the Caojiatuo landslide area,and SVM was also adopted for the periodic displacement *** case study shows that the predictors obtained by SVM are inaccurate,as the landslide displacement is in a pronouncedly step-wise *** contrast,the accuracy can be significantly improved using the dynamic predictive *** paper reveals the significance of capturing the dynamic features of the inputs in the training process,when the machine learning models are adopted to predict the landslide displacement.

关键词： Landslide displacement prediction Artificial intelligent methods Gated recurrent unit neural network CEEMDAN Landslide monitoring

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螺钉螺母垫片组装机的设计

机械工程师 2016年第2期 123-124页

作者：李成龙唐向杰鹿文保姚瑶茅珉珉卢学玉江南大学机械工程学院江苏无锡214122

自动螺钉、螺母、垫片组装机在自动化生产线上的应用十分广泛,可大大节约时间并提高效率和生产力。该机器是自动将一些特殊的﹑重要的和散装的螺钉﹑螺母和垫片装配在一起组成一个完整的成品的设备,从而代替人工装配,实现装配自动化并... 详细信息

自动螺钉、螺母、垫片组装机在自动化生产线上的应用十分广泛,可大大节约时间并提高效率和生产力。该机器是自动将一些特殊的﹑重要的和散装的螺钉﹑螺母和垫片装配在一起组成一个完整的成品的设备,从而代替人工装配,实现装配自动化并提高工作效率。

关键词：自动化螺钉螺母垫片组装机装配线