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X-ray-activated Bi^(3+)/Pr^(3+)co-doped LiYGeO_4 phosphor with UV and NIR dual-emissive persistent luminescence

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Journal of Rare Earths 2024年第5期42卷 955-961,I0005页

作者： xianggui Yin Hongyun Zhong Lin Liu Junpeng Shi Xia Sun Yun Zhang State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou350002China Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen Institute of Rare Earth MaterialsHaixi InstituteChinese Academy of SciencesXiamen361021China Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou350108China

X-ray-activated luminescence materials have broad application prospects in photodynamic therapy of deep *** them,X-ray-activated persistent luminescence materials(PLMs)exhibiting multiple emission peaks have drawn extensive attention for the ir capacity to achieve a combination of bioimaging and therapeutic ***,we developed a novel PLM,LiYGeO_4:Bi^(3+),Pr^(3+),that simultaneously exhibits UV and NIR dual persistent luminescence(PersL)emissions after irradiation by *** material can be re peatedly excited by X-ray and emits similar lumine scence intensity every time,which shows good PersL *** addition,LiYGeO_4:Bi^(3+),Pr^(3+)exhibits photostimulated PersL properties by stimulation with a red light-emitting diode(LED)or NIR laser after long-term *** work provides a new choice of X-ray-excited PLMs with UV and NIR dual emission and the novel phosphor shows promise as a potential candidate for the integration of treatment and diagnosis of deep tumors.

关键词： Co-doping X-ray-activated Dual emissions Persistent luminescence Rare earths

Two gene clusters and their positive regulator SlMYB13 that have undergone domestication-associated negative selection control phenolamide accumulation and drought tolerance in tomato

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Molecular Plant 2024年第4期17卷 579-597页

作者： Peng Cao Jun Yang Linghao Xia Zhonghui Zhang Zeyong Wu Yingchen Hao Penghui Liu Chao wang Chun Li Jie Yang Jun Lai xianggui Li Meng Deng Shouchuang wang School of Breeding and Multiplication(Sanya Institute of Breeding and Multiplication) Hainan UniversitySanya 572025China College of Tropical Agriculture and Forestry Hainan UniversityHaikou 572208China Collaborative Innovation Center of Nanfan and High-Efficiency Tropical Agriculture Hainan UniversityHaikou 572208China

Among plant metabolites,phenolamides,which are conjugates of hydroxycinnamic acid derivatives and polyamines,play important roles in plant adaptation to abiotic and biotic ***,the molecular mechanisms underlying phenolamide metabolism and regulation as well as the effects of domestication and breeding on phenolamide diversity in tomato remain largely *** this study,we performed a metabolite-based genome-wide association study and identified two biosynthetic gene clusters(BGC7 and BGC11)containing 12 genes involved in phenolamide metabolism,including four biosynthesis genes(two 4CL genes,one C3H gene,and one CPA gene),seven decoration genes(five AT genes and two UGT genes),and one transport protein gene(DTX29).Using gene co-expression network analysis we further discovered that SlMYB13 positively regulates the expression of two gene clusters,thereby promoting phenolamide *** and physiological analyses showed that BGC7,BGC11 and SlMYB13 enhance drought tolerance by enhancing scavenging of reactive oxygen species and increasing abscisic acid content in *** variation analysis suggested that BGC7,BGC11 and SlMYB13 were negatively selected during tomato domestication and improvement,leading to reduced phenolamide content and drought tolerance of cultivated ***,our study discovers a key mechanism of phenolamide biosynthesis and regulation in tomato and reveals that crop domestication and improvement shapes metabolic diversity to affect plant environmental adaptation.

关键词： tomato phenolamides gene cluster drought tolerance natural variation evolution

大型斜坡道穿越厚大第四系复杂地层施工新技术

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金属矿山 2017年第2期46卷 14-18页

作者：王湘桂中钢集团马鞍山矿山研究院有限公司安徽马鞍山243000 金属矿山安全与健康国家重点实验室安徽马鞍山243000

以李楼铁矿和吴集铁矿(北段)斜坡道穿越厚大第四系复杂地层为工程实例,针对开挖过程中遇到的第四系厚大表土层、流沙层、砂砾石层(风化基岩破碎带)、含水层等复杂特殊地层掘进与支护难题,采用计算机数值模拟、正台阶分步分序开挖、整体... 详细信息

以李楼铁矿和吴集铁矿(北段)斜坡道穿越厚大第四系复杂地层为工程实例,针对开挖过程中遇到的第四系厚大表土层、流沙层、砂砾石层(风化基岩破碎带)、含水层等复杂特殊地层掘进与支护难题,采用计算机数值模拟、正台阶分步分序开挖、整体式衬砌模板台车、高压摆喷灌浆止水堵漏等技术进行了研究与实践。结果表明:数值模拟能较好地揭示地下工程施工过程中的应力变化情况,对地下工程施工具有一定的指导和参考意义;建立"三级支护"体系,尤其是对于不同属性地层,针对性地采取特殊的掘进及支护技术手段,能极大地提高施工作业的效率与安全,实现厚大第四系复杂地层安全、高效施工。

关键词：复杂厚大第四系三级支护正台阶分步分序开挖高压摆喷 FLAC3D

Health education improves effectively therapy of inpatients with hypertension

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Journal of Nanjing Medical University 2006年第3期20卷 129-132页

作者： Xiang Gu Chunzhi Shi Yibai Feng xianggui wang Hongbin Nie Yongming Zhou Yeqiang Liu Xiangdong Xu Department of Cardiology Union Hospital of Tongji Medical College Huazhong University of Science and Technology Wuhan 430030 China Department of Cardiology Affiliated Hospital of Jiujiang College Jiujiang 332000 China

Objective： Low rate of medication usage and blood pressure （BP） control, bad lifestyle, poor cognition to hypertension, have been obstacles in prevention from hypertensive disease and complication in Chinese cohort. Health education appears to be an impendent measure to improve this situation. To study the effect of health education on the rate of medication usage and BP control, the lifestyle, and the incidence of complication among patients with hypertension. Methods ： 284 hypertensive inpatients were divided randomly into two groups： the control group was intervened with routine medication; the education group was intervened with routine medication in combination with intensive health education according to the investigation on the risk factors of cardiocerebrovascular diseases and cognitive levels of hypertensive .disease. During 12.16 ± 1.95 months of following up, the status of lifestyle, the rate of medication usage and BP control, and incidence of complications between two groups were analyzed. Results： In education group, the rate of smoking, alcohol intake, lower-salt ingesting, exercise, medication usage and BP control were improved after intervention and significantly different from those before intervention （P 〈 0.01）. After intervention, the incidence of complications in education group and control group was 10.9% and 30.5% respectively （P 〈 0.01 ）. Conclusion ： Intensive health education is an important measure in preventing from hypertension.

关键词： health education hypertension blood pressure

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深部高应力下数值模拟本构模型差异性探讨

金属矿山 2016年第8期45卷 38-42页

作者：王湘桂郭伟中钢集团马鞍山矿山研究院有限公司安徽马鞍山243000 金属矿山安全与健康国家重点实验室安徽马鞍山243000

深部高应力环境下,围岩力学响应特性要异于浅部开采。为研究更符合深部高应力环境下的围岩力学特性的数值模拟方法,结合围岩条件较稳固的某铜矿深部开采工程实例,采用FLAC^(3D)软件,分别以摩尔-库伦模型与应变软化模型建立计算模型,对... 详细信息

深部高应力环境下,围岩力学响应特性要异于浅部开采。为研究更符合深部高应力环境下的围岩力学特性的数值模拟方法,结合围岩条件较稳固的某铜矿深部开采工程实例,采用FLAC^(3D)软件,分别以摩尔-库伦模型与应变软化模型建立计算模型,对深部采场开采后顶板围岩的应力、位移、塑性区等情况进行分析对比。研究结果表明:在深部高应力采场大范围开挖的情况下,摩尔-库伦模型个别应力指标要小于应变软化模型,但应变软化模型顶板变形及塑性区更大,摩尔-库伦模型的总体计算结果偏向安全。即应变软化模型能够更好地反映高应力环境下,围岩在非线性阶段的应变软化特性,计算结果更接近于工程实际。计算结果也表明了对于深部高应力下采场的开采模拟,仅靠单一应力或位移指标,难以得出客观结论,可通过多种计算模型及多种分析指标来进行综合分析对比,以提高计算结果的客观性。

关键词：深部高应力 FLAC^3D 数值模拟应变软化模型

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下向水平胶结充填采矿法在黄狮涝矿区的应用

金属矿山 2012年第8期41卷 25-27页

作者：许健王湘桂铜冠黄狮涝金矿有限责任公司中钢集团马鞍山矿山研究院有限公司

对矿岩均为极破碎、稳定性极差、开采技术条件复杂的金矿床的开采,长期以来一直是采矿界的一个亟待解决的难题。铜冠黄狮涝金矿有限公司黄狮涝矿区多年来应用下向水平分层进路碎石胶结充填采矿法较好地解决了此难题,取得的主要技术指标... 详细信息

对矿岩均为极破碎、稳定性极差、开采技术条件复杂的金矿床的开采,长期以来一直是采矿界的一个亟待解决的难题。铜冠黄狮涝金矿有限公司黄狮涝矿区多年来应用下向水平分层进路碎石胶结充填采矿法较好地解决了此难题,取得的主要技术指标为采场生产能力30～40 t/d,矿石贫化率4%～6%,矿石损失率5%～7%,采出矿石160万t。

关键词：金矿下向水平分层进路胶结充填

吴集铁矿(南段)采空区稳定性及处理措施研究

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金属矿山 2009年第12期38卷 32-34页

作者：李同鹏王湘桂中钢集团马鞍山矿山研究院有限公司

针对吴集铁矿矿体赋存特点,主要从应力变化方面分析了采空区失稳冒落的危害、主要原因和影响因素,并提出了高浓度全尾砂胶结充填的采空区治理措施,充填料浆浓度及尾砂利用率高,为矿山治理采空区和充分利用矿山废料提供了依据。

关键词：采空区稳定性高浓度全尾砂胶结充填

Structural Influence on the Mechanical Properties of Single-Walled Carbon Nanotubes under the Tension Deformation

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Structural Influence on the Mechanical Properties of Single-...

风湿性心脏病伴慢性心房颤动患者心房组织内肾素血管紧张素系统活性与血栓前状态的关系

The Sixth World Congress on Computational Mechanics in Conjunction with the Second Asian-Pacific Congress on Computational Mechanics

作者： xianggui Ni , Yu wang, Xiuxi wang CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, 230026, China

The study on mechanical properties of single-walled carbon nanorubes(SWCNTs) is important to investigate the properties of multiwalled carbon nanotubes and single-walled carbon nanotube bundles.

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来源： cnki会议评论

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cnki会议

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临床心血管病杂志 2005年第4期21卷 201-203页

作者：刘会田王祥贵昌薇阳新县人民医院心内科湖北阳新435200 华中科技大学协和医院心内科华中科技大学同济医学院心血管病研究所武汉市第一医院心内科

目的探讨风湿性心脏病伴慢性心房颤动(Af)患者心房组织内肾素血管紧张素系统(RAS)活性与血栓前状态(PLS)的关系。方法将38例接受手术的风湿性心脏病患者分为慢性Af组和窦性心律组,对两组患者均采用比浊法测定脂蛋白(a)[Lip(a)],ELISA法... 详细信息

目的探讨风湿性心脏病伴慢性心房颤动(Af)患者心房组织内肾素血管紧张素系统(RAS)活性与血栓前状态(PLS)的关系。方法将38例接受手术的风湿性心脏病患者分为慢性Af组和窦性心律组,对两组患者均采用比浊法测定脂蛋白(a)[Lip(a)],ELISA法检测Ⅷ因子相关抗原vWFAg、血小板α颗粒膜蛋白140(GMP140)和D二聚体(Ddimer),免疫印迹(Westernblotting)法检测心房组织血管紧张素转化酶(ACE)的水平,非平衡放射免疫测定法测定血管紧张素Ⅱ(AngⅡ)含量。结果慢性Af组Lip(a)、vWFAg、GMP140和Ddimer的水平均较窦性心律组明显增高(P<0.01、0.05);心房组织AngⅡ的水平明显高于窦性心律组(P<0.01);ACE表达量也较窦性心律组明显增加(P<0.01);相关分析显示,心房组织AngⅡ水平与Lip(a)、vWFAg、GMP140和Ddimer均呈正相关(r分别为0.86、0.64、0.93和0.61,P<0.01或P<0.05)。结论风湿性心脏病伴慢性Af患者存在PLS以及心房组织局部RAS的激活,心房组织局部RAS的激活可能是其存在PLS的发生机制之一。

关键词：风湿性心脏病心房颤动血管紧张素Ⅱ 血管紧张素转化酶血栓的状态