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Characteristics of Drought and Flood in Zhejiang Province,East China:Past and Future

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Chinese Geographical Science 2007年第3期17卷 257-264页

作者： feng lihua Hong Weihu Zhejiang Normal Univ Dept Geog Jinhua 321004 Peoples R China Clayton State Univ Dept Math Morrow GA 30260 USA

On the basis of large amount of historical and measured data, this paper analyzed the regional, periodic, frequency, continuing, and response characteristics of droughts and floods in Zhejiang and proposed the conception of ratio of peak runoff. Main characteristics of droughts and floods in Zhejiang are as follows： 1） The western Zhejiang region is plum rain major control area, and the eastern coastal region of Zhejiang is typhoon major control area. 2） Within a long period in the future, Zhejiang will be in the long period that features droughts. 3） In Zhejiang the 17th century was frequent drought and flood period, the 16th, 19th, and 20th centuries were normal periods, while the 18th century was spasmodic drought and flood period. 4） The severe and medium floods in Zhejiang were all centered around the M-or m-year of the 11-year sunspot activity period. 5） There are biggish years of annual runoff occurred in E1 Nifio year （E） or the following year （E＋1） in Zhejiang. The near future evolution trend of droughts and floods in Zhejiang is as follows： 1） Within a relatively long period in the future, Zhejiang Province will be in the long period of mostly drought years. 2） Between 1999 and 2009 this area will feature drought years mainly, while the period of 2010-2020 will feature flood years mostly. 3） Zhejiang has a good response to the sunspot activities, and the years around 2009, 2015, and 2020 must be given due attention, especially around 2020 there might be an extremely severe flood year in Zhejiang. 4） Floods in Zhejiang have good response to El Nifio events, in El Nifio year or the following year much attention must be paid to. And 5） In the future, the first, second, and third severe typhoon years in Zhejiang will be 2009. 2012. and 2015. resnectivelv.

关键词： drought and flood sunspot activity E1 Nino event evolution trend Zhejiang Province

新质生产力赋能乡村文旅产业发展一体化模式探索

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知与行 2024年第2期 78-89页

作者：冯丽华邓赛山东科技大学马克思主义学院山东青岛266590

中国式现代化的发展离不开全面推进乡村振兴,乡村文旅产业作为推动乡村振兴,尤其是乡村经济高质量发展的新引擎而发挥重要作用。但当前乡村文旅产业的发展面临着数字科技应用率低、数据信息不对称、数字化宣传力度欠缺、智能化数据分析... 详细信息

中国式现代化的发展离不开全面推进乡村振兴,乡村文旅产业作为推动乡村振兴,尤其是乡村经济高质量发展的新引擎而发挥重要作用。但当前乡村文旅产业的发展面临着数字科技应用率低、数据信息不对称、数字化宣传力度欠缺、智能化数据分析不足、乡村数字化人才缺乏、财政专项投入有限等困境,通过新质生产力的赋能,以创新为特点、以质优为关键、以先进生产力为本质,探索集数字引领、融合发展、技术驱动、人才支持、智能监管、政策扶持的一体化模式,促进乡村文旅产业的创新能力和市场竞争力,推进产业结构的优化升级,推动乡村全面振兴,为中国式现代化注入动力和活力。

关键词：新质生产力乡村建设文旅产业

渗流地层地铁联络通道冻结壁形成过程及其影响因素分析

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中南大学学报（自然科学版） 2024年第4期55卷 1463-1476页

作者：刘欣冯利华任全军沈宇鹏韩昀希刘越韩风雷北京交通大学土木工程学院北京100044 重庆交通大学未来土木科技研究院重庆400074 重庆交通大学土木工程学院重庆400074 中铁一局集团第二工程有限公司河北唐山063000

冻结法凭借封水性好、适应性强和环境影响小等优势成为地铁联络通道施工的主要工法之一,而地下水渗流易引起冻结壁交圈时间延后、厚度和平均温度不及预期,对冻结工程的推进具有不利影响。本文采用频域反射法获取饱和砂砾石未冻水体积分... 详细信息

冻结法凭借封水性好、适应性强和环境影响小等优势成为地铁联络通道施工的主要工法之一,而地下水渗流易引起冻结壁交圈时间延后、厚度和平均温度不及预期,对冻结工程的推进具有不利影响。本文采用频域反射法获取饱和砂砾石未冻水体积分数和温度的函数关系式,基于多孔介质传热和渗流理论,建立考虑相变的饱和地层渗流冻结流热耦合数学模型,利用联络通道冻结模型试验结果验证流热耦合模型的有效性。在此基础上,研究渗流速度、冷媒温度、冻结管直径和渗流温度对联络通道冻结壁形成过程和交圈时间的影响规律。最后,采用正交试验方法对冻结壁形成过程影响因素的显著性进行分析,提出考虑多因素影响的冻结壁交圈时间和标厚时间预测方法。研究结果表明:无渗流时,联络通道冻结温度场呈W型对称分布;当渗流速度为51.2 m/d时,地层温度场不再呈对称分布,上游区域温度高于下游区域温度。渗流速度是影响联络通道冻结壁形成的首要因素,冻结管直径和冷媒温度次之,渗流温度对交圈时间的影响较小。上游侧墙是渗流地层冻结壁扩展的薄弱环节,应加强该区域温度场的监测,跟踪冻结壁的形成过程。

关键词：联络通道人工地层冻结冻结壁渗流温度场

维普期刊数据库博看期刊

The Comaximal Graphs of Noncommutative Rings

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代数集刊:英文版 2023年第3期30卷 439-448页

作者： Shouqiang Shen Weijun Liu lihua feng School of Applied Science Beijing Information Science and Technology University Beijing100192China School of Mathematics and Statistics HNP-LAMA Central South UniversityChangsha 410083China

For a ring R(not necessarily commutative)with identity,the comaximal graph of R,denoted byΩ(R),is a graph whose vertices are all the nonunit elements of R,and two distinct vertices a and b are adjacent if and only if Ra+Rb=*** this paper we consider a subgraphΩ_(1)(R)ofΩ(R)induced by R\Uℓ(R),where Uℓ(R)is the set of all left-invertible elements of *** characterize those rings R for whichΩ_(1)(R)\J(R)is a complete graph or a star graph,where J(R)is the Jacobson radical of *** investigate the clique number and the chromatic number of the graphΩ_(1)(R)\J(R),and we prove that if every left ideal of R is symmetric,then this graph is connected and its diameter is at most ***,we completely characterize the diameter ofΩ_(1)(R)\J(R).We also investigate the properties of R whenΩ_(1)(R)is a split graph.

关键词： comaximal graph noncommutative ring left invertible element split graph

结合刘保和的“抓主症”小议乌梅丸的临床应用

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江西中医药 2024年第5期55卷 33-35页

作者：武丽娜王俊玲封丽华石家庄市第三医院石家庄050011 河北省中医院石家庄050011

刘保和绘制了人体气运动基本模式图,发展了腹诊理论,提出用方“抓主症”,总结出乌梅丸的使用主症有三:左天枢穴压痛;口苦咽干而下腹部、下肢畏冷,饮食欲冷,但食后不舒;左关脉浮弦无力或细弱无力。通过阐述乌梅丸方证的经典记载及古医家... 详细信息

刘保和绘制了人体气运动基本模式图,发展了腹诊理论,提出用方“抓主症”,总结出乌梅丸的使用主症有三:左天枢穴压痛;口苦咽干而下腹部、下肢畏冷,饮食欲冷,但食后不舒;左关脉浮弦无力或细弱无力。通过阐述乌梅丸方证的经典记载及古医家注释,结合3个乌梅丸应用案例,讨论如何“抓主症”,总结乌梅丸的临床应用体会。

关键词：乌梅丸刘保和抓主症气运动理论腹诊

Efficient and stable PtFe alloy catalyst for electrocatalytic methanol oxidation with high resistance to CO

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Journal of Energy Chemistry 2024年第3期90卷 327-336,I0008页

作者： Qian Yang Sifan Zhang fengshun Wu lihua Zhu Guang Li Mingzhi Chen An Pei Yingliang feng Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry College of Chemistry and Chemical EngineeringFaculty of Materials Metallurgy and ChemistryJiangxi University of Science and TechnologyGanzhou 341000JiangxiChina College of Chemistry and Chemical Engineering Xiamen UniversityXiamen 361005FujianChina

Direct methanol fuel cells(DMFC) are widely considered to be an ideal green energy conversion device but their widespread applications are limited by the high price of the Pt-based catalysts and the instability in terms of surface CO toxicity in long-term ***,the PtFe alloy nanoparticles(NPs) with small particle size(~4.12 nm) supported on carbon black catalysts with different Pt/Fe atomic ratios(Pt_(1)Fe_(2)/C,Pt_(3)Fe_(4)/C,Pt_(1)Fe_(1)/C,and Pt_(2)Fe_(1)/C) are successfully prepared for enhanced anti-CO poisoning during methanol oxidation reaction(MOR).The optimal atomic ratio of Pt/Fe for the MOR is 1:2,and the mass activity of Pt_(1)Fe_(2)/C(5.40 A mg_(Pt)^(-1)) is 13.5 times higher than that of conventional commercial Pt/C(Pt/C-JM)(0.40 A mg_(Pt)^(-1)).The introduction of Fe into the Pt lattice forms the PtFe alloy phase,and the electron density of Pt is reduced after forming the PtFe ***-situ Fourier transform infrared results indicate that the addition of oxyphilic metal Fe has reduced the adsorption of reactant molecules on Pt during the *** doping of Fe atoms helps to desorb toxic intermediates and regenerate Pt active sites,promoting the cleavage of C-O bonds with good selectivity of CO_(2)(58.1%).Moreover,the Pt_(1)Fe_(2)/C catalyst exhibits higher CO tolerance,methanol electrooxidation activity,and long-term stability than other Pt_(x)Fe_(y)/C catalysts.

关键词： Alloy catalyst PtFe Methanol oxidation In-situ FTIR CO resistance

Effects of Different Dietary Cation-Anion Difference on Fiber Degradation in Rumen of Laoshan Dairy Goats

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Journal of Northeast Agricultural University(English Edition) 2009年第1期16卷 40-44页

作者： WANG lihua feng Qiang Animal Science and Technology College Qingdao Agricultural University Qingdao 266109 Shandong China

The experiment was conducted to determine effects of different dietary cation-anion difference（DCAD） in diets on ruminal fluid pH and fiber degradation in rumen of Laoshan dairy goats. A 4×4 latin square design was adopted. DCAD in different groups was 0, 50, 100, 200 mEq·kg^-1 of DM, respectively. The results of ruminal pH indicated that different DCAD could significantly influence the ruminal pH （P〈0.05） and ruminal fluid pH increased as DCAD increased from 0 to 200 mEq·kg^-1 of DM at different sampling time-points. There was no effect of DCAD on carboxymethyl cellulase in ruminal fluid at 4 h and 8 h postfeeding （P〉0.05）. Degradation ofNDF, ADF, CF peaked at a DCAD of 100 mEq·kg^-1 of DM. It could be concluded that DCAD of 100 mEq·kg^-1 of DM was advantage to non-pregnancy, non-lactication Laoshan dairy goat.

关键词： DCAD dairy goat ruminal fluid pH fiber degradation

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四川小麦新品种的条锈病抗性基因分布

麦类作物学报 2024年第3期44卷 305-314页

作者：杨治任小杰蒋云王芳冯丽华郝明袁中伟甯顺腙姜博张连全伍碧华刘登才黄林西南作物基因资源发掘与利用国家重点实验室四川成都611130 四川农业大学小麦研究所四川成都611130 四川省农科院生物技术核技术研究所四川成都610066

条锈病是四川小麦重要病害。为了解四川近年来审定小麦品种的条锈病抗性水平和抗病基因利用情况,对2017年以来审定的63个小麦新品种进行条锈病抗性鉴定,利用抗病基因Yr5、Yr7、Yr15、Yr18、Yr27、Yr28、Yr36、Yr46、YrU1、YrSP的功能标... 详细信息

条锈病是四川小麦重要病害。为了解四川近年来审定小麦品种的条锈病抗性水平和抗病基因利用情况,对2017年以来审定的63个小麦新品种进行条锈病抗性鉴定,利用抗病基因Yr5、Yr7、Yr15、Yr18、Yr27、Yr28、Yr36、Yr46、YrU1、YrSP的功能标记和Yr17、Yr26、Yr29的紧密连锁标记进行检测。结果表明,57个品种在苗期对条锈菌小种CYR34的抗性水平达到中抗以上(IT=0~6)。所有品种的田间成株期抗性均达到中抗及以上(IT=1~4)。未检测到Yr5、Yr27、Yr46和YrU1的功能位点,其余9个基因均存在于四川小麦品种中。Yr7、Yr17、Yr26和Yr29在供试品种的分布频率超过50%。综上所述,四川小麦新品种条锈病抗性水平整体较高,条锈病抗性基因丰富;小麦祖先物种抗条锈病基因Yr15、Yr28和Yr36已成功应用于四川小麦育种。

关键词：四川小麦品种条锈病抗性抗病基因分子标记检测

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Increased interleukin 6 inplasma of schizophrenic patients treated with neuroleptic drugs

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吉林大学学报(医学版) 1995年第4期21卷 370-372页

作者： xu Haimin,Liu Jun,feng lihua(Deportment of Biochemistry,The First Clincal College)

Ｉｎｃｒｅａｓｅｄｉｎｔｅｒｌｅｕｋｉｎ６ｉｎｐｌａｓｍａｏｆｓｃｈｉｚｏｐｈｒｅｎｉｃｐａｔｉｅｎｔｓｔｒｅａｔｅｄｗｉｔｈｎｅｕｒｏｌｅｐｔｉｃｄｒｕｇｓｘｕＨａｉｍｉｎ，ＬｉｕＪｕｎ，ＦｅｎｇＬｉｈｕａ（Ｄｅｐ... 详细信息

Ｉｎｃｒｅａｓｅｄｉｎｔｅｒｌｅｕｋｉｎ６ｉｎｐｌａｓｍａｏｆｓｃｈｉｚｏｐｈｒｅｎｉｃｐａｔｉｅｎｔｓｔｒｅａｔｅｄｗｉｔｈｎｅｕｒｏｌｅｐｔｉｃｄｒｕｇｓｘｕＨａｉｍｉｎ，ＬｉｕＪｕｎ，ＦｅｎｇＬｉｈｕａ（ＤｅｐｏｒｔｍｅｎｔｏｆＢｉｏｃｈｅｍｉ...

关键词： IL一6 IL一Lβ TNF一α neuroleptics schizophrenia