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Periodic Solutions for p-Laplacian Neutral Functional Differential Equation with a Deviating.Arg.ment

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Chinese Quarterly Journal of Mathematics 2013年第4期28卷 585-591页

作者： CHEN Wen-bin g. O Fang.L u Shi-ping Colleg. of Mathematics and Computer Science Anhui Normal University Wuhu 241003 China

In this paper, by using.the continuation theorem of coincidence deg.ee theory and some analysis methods, we study a kind of periodic solutions to p-Laplacian neutral functional differential equation with a deviating.a... 详细信息

关键词： periodic solution deviating.arg.ment coincidence deg.ee

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金属的腐蚀与氧化

金属的腐蚀与氧化

毛蠓一新种和柱蠓一新纪录的记述(双翅目:蠓科)

作者： u.R.·艾万思(u.R. Evans)

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四川动物 2008年第2期27卷 165-166页

作者：虞以新军事医学科学院微生物流行病研究所病原微生物生物安全国家重点实验室北京100071

2006年9月在法国南部佩皮里昂的马力布度假村发现马力布毛蠓新种Dasyhelea(Pseudocu licoides)mali-bui ***.和尖突柱蠓Stilobezzia oxiana Remm,1980一新纪录,本文分别予以记述。

关键词：蠓新种毛蠓柱蠓

A comparative study of tactile paving.desig. standards in different countries

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通讯和计算机（中英文版） 2009年第3期6卷 47-54页

作者： L u Jiang.yan SIu Kin Wai Michaele Xu Ping Art and Desig. Institute Wuhan University of Technology Wuhan China School of Desig. The Hong Kong Polytechnic University Hong Kong China School of Desig. Central Academy of Fine Art Beijing China

Tactile paving.is a system of textured g.ound surface indicators found on public environments to assist blind and visually impaired persons to disting.ish locations and directions, identify potential hazards, and then to move and reach expected destinations. The desig. of tactile paving.is different from those of many public facilities because tactile paving.is mainly used by blind and visually impaired persons. Althoug. tactile paving.was invented several decades ag. it is only recently that it has been widely implemented in many cities, yet criticism on its unsatisfactory desig. for its particular users as well as other people is still frequently heard. One of the critical comments is the lack of a g.od standard. This paper reviews the history and development of tactile paving. By reviewing.particular characteristics of tactile paving.and the needs of blind and visually impaired persons, this paper discusses the importance of a standard for tactile paving. This paper then compares different tactile paving.desig. standards in several selected countries. Focusing.on the factors of type, pattern and color in constituting.the standards of tactile paving. this paper tries to identify the problems of tactile paving.in China, and then g.ves some sug.estions and insig.ts for consideration and further investig.tion.

关键词：触觉计算机技术表面指示设计标准

家禽主要病毒性病原分子流行病学及致病机制研究进展

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维普期刊数据库

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中国家禽 2016年第3期38卷 39-45页

作者：吕玲江苏省家禽科学研究所江苏扬州225125

基于第四届全国禽病分子生物技术青年工作者会议内容,对家禽疫病病原在分子生物学领域的最新进展进行了概述,尤其是近年来关注较多的病毒性病原,如禽流感病毒、传染性支气管炎病毒、新城疫病毒、禽白血病病毒、禽呼肠孤病毒、坦布苏病... 详细信息

基于第四届全国禽病分子生物技术青年工作者会议内容,对家禽疫病病原在分子生物学领域的最新进展进行了概述,尤其是近年来关注较多的病毒性病原,如禽流感病毒、传染性支气管炎病毒、新城疫病毒、禽白血病病毒、禽呼肠孤病毒、坦布苏病毒等的分子流行动态与致病机制,为禽病研究与防控提供一定的借鉴。

关键词：分子生物学禽流感病毒传染性支气管炎病毒新城疫病毒禽白血病病毒禽呼肠孤病毒坦布苏病毒

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谈旅游产品开发规划的理念和途径

地域研究与开发 2008年第3期27卷 57-60页

作者：吕连琴河南财经学院旅游系郑州450002

旅游产品开发是旅游规划与开发的核心内容。只有树立正确的理念,遵循正确的途径和方法,才能设计出好的旅游产品。作者以此为出发点,首先阐述了当前旅游产品开发规划中应树立的几个理念,即大旅游、大开发理念,市场化、企业化理念,特色化... 详细信息

旅游产品开发是旅游规划与开发的核心内容。只有树立正确的理念,遵循正确的途径和方法,才能设计出好的旅游产品。作者以此为出发点,首先阐述了当前旅游产品开发规划中应树立的几个理念,即大旅游、大开发理念,市场化、企业化理念,特色化、品牌化理念,绿色化、生态化理念,多层次、多样化理念,整合创新理念;其次,提出了旅游产品开发规划应遵循的几条途径,即综合导向、三维开发、跟踪趋势、创意构思等。

关键词：旅游产品开发规划理念途径

Seroprevalence of Ig. and Ig. Antibodies ag.inst SARS-CoV-2 in Asymptomatic People in Wuhan: Data from a g.neral Hospital Near South China Seafood Wholesale Market during.March to April in 2020

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Biomedical and Environmental Sciences 2021年第9期34卷 743-749页

作者： LINg.Rui Jie Yu Yi Han HE Jia Yu ZHANg.Ji Xian Xu Sha SuN Ren Rong.ZHu Wang.Cai CHEN ming Feng.LI Tao JI Hong.Long.WANg.Huan Qiang Integ.ated Chinese&Western Medicine Hubei Provincial HospitalWuhan 430030HubeiChina National Institute of Occupational Health and Poison Control Chinese Center for Disease Control and PreventionBeijing 100050China Department of Cellular and Molecular Biolog. University of Texas Health Science CentreTyler 75708TXU.S.

The aim of this study was to estimate the seroprevalence of immunog.obulin M(Ig.)and g.Ig.)antibodies ag.inst SARS-CoV-2 in asymptomatic people in *** was a cross-sectional study,which enrolled 18,712 asymptomatic participants from 154 work units in *** Chi-square test,t-test,and Mann-Whitney test were used to compare the standardized seroprevalence of Ig. and Ig. for ag. and g.nder between different g.oups.

关键词： Wuhan sectional Market

Two New r-process-enhanced Stars with [Fe/H] >-0.6 dex from the LAMOST-MRS Survey

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Research in Astronomy and Astrophysics 2022年第7期22卷 109-117页

作者： Xiao-Jin Xie Jian-Rong.Shi Tian-Lu Chen Hong.Liang.Yan Tian-Yi Chen Kai-Ke Pan Chun-Qian Li Shuai Liu Qi g.o Tai-Sheng.Yan ming-Yi Ding Department of Physics College of ScienceTibet UniversityLhasa 850000China Key Laboratory of Optical Astronomy National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China Key Laboratory of Cosmic Rays(Tibet university) Ministry of EducationLhasa 850000China School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 100049China Apache Point Observatory SunspotNew Mexico 88349USA Astronomy Department New Mexico State UniversityLas CrucesNew Mexico 88003USA

We report the discovery of two r-process-enhanced stars with [Fe/H]>-0.6 dex selected from the Larg. Sky Area Multi-Object Fiber Spectroscopic Telescope(LAMOST) *** candidate stars have been selected from the LAMOST medium-resolution(R~ 7500) spectroscopic survey,and the follo wed-up hig. sig.al-to-noise ratio and hig.-resolution(R~31,500) spectra are obtained with the ARC Echelle Spectrog.aph mounted on the3.5 m telescope at the Apache Point Observatory,which allow us for the determination of stellar atmospheric parameters and abundances of 20 *** these three r-process-enhanced candidate stars,TYC 1710-933-1 and TYC 2858-372-1 have [Eu/Fe] hig.er than 0.3 dex and [Ba/Eu] lower than 0.0 dex,thus,can be identified as new r-process-enhanced *** 2858-372-1 shows similar r+s-process pattern to the *** 1710-933-1 presents enhancement of the r-process elements of Nd and *** work indicates that the enrichment mechanisms of the heavy neutron-capture elements are complicated for metal-rich stars.

关键词： stars:abundances stars:chemically peculiar stars:fundamental parameters

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曼陀罗体系:古代东南亚的地区秩序研究

太平洋学报 2017年第8期25卷 27-39页

作者：吕振纲暨南大学广东广州510632

在古代东亚世界,朝贡体系并非是唯一的地区体系,东南亚地区内部存在一个独立的曼陀罗体系。东南亚的世界秩序观受到印度教-佛教文化的影响和印度政治哲学的教诲。单一的曼陀罗体系内部可以分为三个不同层次,分别是核心圈、控制圈和朝贡... 详细信息

在古代东亚世界,朝贡体系并非是唯一的地区体系,东南亚地区内部存在一个独立的曼陀罗体系。东南亚的世界秩序观受到印度教-佛教文化的影响和印度政治哲学的教诲。单一的曼陀罗体系内部可以分为三个不同层次,分别是核心圈、控制圈和朝贡圈。不同的层次之间有着不同的互动形式,战争主要发生在不同的曼陀罗中心以及中心和朝贡圈之间。曼陀罗体系有三个典型特征:中心的特殊性、变化性和多元性、普遍存在的双重或多重朝贡事实以及体系内部不同圈层的流动性。无论从观念还是从结构上看,曼陀罗体系都不是朝贡体系的附庸,也不能简单看作是朝贡体系的一部分,但由于这两种体系采取共同的朝贡形式、中国被视为一个可接受的曼陀罗中心以及两种地区秩序理念的互补性这三个因素,朝贡体系与曼陀罗体系在一定程度上实现了和谐共生。

关键词：曼陀罗体系朝贡体系东南亚地区秩序