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Is there a great unconformity between Xiamaling and Longshan formations in the North China Craton?

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Science China Earth Sciences 2023年第5期66卷 959-984页

作者： Hongwei KUANG Nan PENG Yongqing LIU Yuchong WANG Mingming CUI Xiaoshuai CHEN Dawei QIAO Keining QI Institute of Geology Chinese Academy of Geological SciencesBeijing100037China School of Earth Science and Mapping Engineering China University of Mining and Technology(Beijing)Beijing100083China School of Resource and Environmental Engineering Hefei University of TechnologyHefei230009China

The existence of a 0.3 Ga"great unconformity"between the Mesoproterozoic"Undefined System"Xiamaling Formation and the"Neoproterozoic"Longshan Formation has long been controversial.In this study,stratigraphy,sedimentology,detrital zircon dating,lithium isotope,and major and trace elements were applied to systematically analyze their relationship.Results demonstrate that coarse to fine sandstone-mudstone normal cycles with different grades and thicknesses exist from the Xiamaling to the Longshan formations.Sedimentary succession formed from a restricted platform with lagoon-shallow marine shelf-tidal flat-beach and tidal shoal developing in ascending order.The pebbly sandstone at the bottom of the Long shan Formation does not have the properties of basal conglomerate with tectonic significance.The youngest detrital zircon is older than 1.6 Ga for the Long shan Formation and overlying Jing'eryu Formation sandstones.In addition,no(zircon)provenance has been found from the large igneous province of 1.32-1.2 Ga in Xiamaling Formation.Theδ^(7)Li isotope values exhibit a gradually increasing trend.The Li content and CIA(Chemical index of alteration)gradually decreases from the top of the Xiamaling Formation to the lower part of the Long shan Formation.Simultaneously,as K_(2)O/Al_(2)O_(3)and FeO/Fe_(2)O_(3)decreases,Na_(2)O/Al_(2)O_(3)increases,and Li/Al,V/Cr,and V/(V+Ni)fluctuates slightly.At the boundary,the Ce/Ce^(*)and Eu/Eu^(*)show positive and negative anomalies,respectively.Further,the Rb/Sr and Al/Si values decrease,and U/Th values increase.This indicates that the geochemistry of the weathering crust at the interface of the Xiamaling Formation-Long shan Formation is not characteristic.However,it indicates a weakening of continental weathering intensity from the bottom to the top of the interface.These results do not support the existence of a large unconformity between the Xiamaling and the Longshan formations.Therefore,it is suggested that the Long shan Formation-Jing'eryu Formation should be moved to the lower l

关键词： North China Craton Mesoproterozoic Transition period Unconformity Continuous sedimentation

Application of "Fabulous" stent system to improve aortic remodeling after TEVAR for type B aortic dissection

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Chinese Medical Journal 2023年第10期136卷 1231-1233页

作者： Chengkai Hu Jue Yang Wei wang Xiangchen Dai Xinwu Lu Youfei Qi Hongpeng Zhang yuchong Zhang Ye Yuan Enci wang Yi Si Weiguo Fu Lixin wang Department of Vascular Surgery Zhongshan HospitalFudan UniversityShanghai 200032China Vascular Surgery Institute of Fudan University Shanghai 200032China Department of Vascular Surgery Zhongshan Hospital(Xiamen)Fudan UniversityXiamenFujian 361015China Department of Vascular Surgery Xiangya HospitalCentral South UniversityChangshaHunan 410008China Department of Vascular Surgery Tianjin Medical University General HospitalTianjin 300052China Department of Vascular Surgery Shanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai 200011China Department of Vascular Surgery Hainan General HospitalHaikouHainan 570311China Department of Vascular Surgery Chinese PLA General HospitalBeijing 100853China

It is known that the Proximal Extension To Induce Complete Attachment(PETTICOAT)technique improves the distal aortic remodeling compared with standard thoracic endovascular aortic repair(TEVAR).[1,2]However,the only available Zenith Dissection Endovascular System(Cook Medical Inc.,Bloomington,Ind,USA)has several limitations,including only two sizes(36 mm and 46 mm)and an one-taper design,which may not be suitable for the complex morphology of dissection at distal aorta,particular for the east Asian population.Thus,our center designed the new“Fabulous”stent system and acheieved better early curative effect.

关键词： aortic dissection remodeling

A biomaterial-based therapy for lower limb ischemia using Sr/Si bioactive hydrogel that inhibits skeletal muscle necrosis and enhances angiogenesis

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Bioactive Materials 2023年第8期26卷 264-278页

作者： Ye Yuan Zhaowenbin Zhang Fandi Mo Chen Yang Yiren Jiao Enci wang yuchong Zhang Peng Lin Chengkai Hu Weiguo Fu Jiang Chang Lixin wang Department of Vascular Surgery Zhongshan HospitalFudan University180 Fenglin RoadShanghai200032China Department of Vascular Surgery Zhongshan Xiamen HospitalFudan University668 JinhuRoadXiamen361015China Joint Centre of Translational Medicine The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou325000China Zhejiang Engineering Research Center for Tissue Repair Materials Wenzhou InstituteUniversity of Chinese Academy of SciencesWenzhou325000China Shanghai Institute of Ceramics Chinese Academy of Sciences1295 Dingxi RoadShanghai200050China

Muscle necrosis and angiogenesis are two major challenges in the treatment of lower-limb ischemic diseases.In this study,a triple-functional Sr/Si-containing bioceramic/alginate composite hydrogel with simultaneous bioactivity in enhancing angiogenesis,regulating inflammation,and inhibiting muscle necrosis was designed to treat lower-limb ischemic diseases.In particular,sodium alginate,calcium silicate and strontium carbonate were used to prepare injectable hydrogels,which was gelled within 10 min.More importantly,this composite hydrogel sustainedly releases bioactive Sr^(2+)and SiO_(3)^(2-) ions within 28 days.The biological activity of the bioactive ions released from the hydrogels was verified on HUVECs,SMCs,C2C12 and Raw 264.7 cells in vitro,and the therapeutic effect of the hydrogel was confirmed using C57BL/6 mouse model of femoral artery ligation in vivo.The results showed that the composite hydrogel stimulated angiogenesis,developed new collateral capillaries,and re-established the blood supply.In addition,the bioactive hydrogel directly promoted the expression of muscle-regulating factors(MyoG and MyoD)to protect skeletal muscle from necrosis,inhibited M1 polarization,and promoted M2 polarization of macrophages to reduce inflammation,thereby protecting skeletal muscle cells and indirectly promoting vascularization.Our results indicate that these bioceramic/alginate composite bioactive hydrogels are effective biomaterials for treating hindlimb ischemia and suggest that biomaterial-based approaches may have remarkable potential in treating ischemic diseases.

关键词： Hindlimb ischemic diseases Strontium carbonate and calcium silicate bioceramic Bioactive hydrogel Muscle necrosis Angiogenesis

相对论点耦合模型结合复动量表象方法研究^(74)Ca奇特结构

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中国科学：物理学、力学、天文学 2022年第6期52卷 42-49页

作者：王宇翀侯奎仕敏安徽建筑大学数理学院合肥230601 先进电子材料与器件重点实验室合肥230601 安徽省建筑声环境重点实验室合肥230601

本文介绍了奇特原子核的研究意义、研究方法及研究进展.给出了近期在相对论点耦合模型下结合复动量表象(CMR)方法和Bardeen-Cooper-Schrieffer(BCS)方法,发展的RMFPC-CMR-BCS方法的理论框架.本文重点是用此方法研究^(74)Ca的奇特结构.... 详细信息

本文介绍了奇特原子核的研究意义、研究方法及研究进展.给出了近期在相对论点耦合模型下结合复动量表象(CMR)方法和Bardeen-Cooper-Schrieffer(BCS)方法,发展的RMFPC-CMR-BCS方法的理论框架.本文重点是用此方法研究^(74)Ca的奇特结构.由于那些靠近连续谱阈值的单粒子态对奇特结构的形成有着重要作用,本文详细研究了对晕现象较为重要的单粒子态的波函数和密度分布,在用BCS方法考虑对关联作用后,低轨道角动量2d_(3/2)态因其是分布在最靠近连续谱阈值的共振态,最后一个核子将有很大概率弥散到2d_(3/2)共振态,从而使原子核半径增大,形成奇特晕现象.文中对这部分进行了详细研究,也展示出共振态对奇特结构形成的重要作用.

关键词：相对论点耦合模型复动量表象方法奇特核结构

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论共生视域下中国与周边命运共同体建设

武警学院学报 2018年第5期34卷 14-18页

作者：王玉冲武警学院边防系河北廊坊065000

中国与周边国家在地缘环境、人文精神和经济利益等方面相互交织,紧密联系在一起。基于地缘共生环境的区域合作,使得中国与周边国家的联系愈加紧密,相互依赖程度日益加深。中国与周边国家的多元共生文化,有助于相互沟通和理解,更好地达... 详细信息

中国与周边国家在地缘环境、人文精神和经济利益等方面相互交织,紧密联系在一起。基于地缘共生环境的区域合作,使得中国与周边国家的联系愈加紧密,相互依赖程度日益加深。中国与周边国家的多元共生文化,有助于相互沟通和理解,更好地达成认同与共识。中国与周边国家的经济互融促进了跨境地缘经济区域的形成,推动了区域经济的协同发展。中国与周边国家地缘相近、文化相似、经济互融的共生格局,形成了"命运共同体"的雏形。若中国与周边国家能够排除域外国家的干扰,本着"道不同,互相为谋、为学、学鉴"的信念,共谋区域和平与发展,定能不断推进命运共同体的构建。

关键词：共生关系中国周边命运共同体

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预构皮瓣的研究与应用进展

中华烧伤杂志 2014年第5期30卷 437-440页

作者：王宇翀薛春雨第二军医大学长海医院整形外科上海200433

预构皮瓣（prefabricated flap）是将知名血管束或含有知名血管的筋膜、肌肉等组织移位于随意型皮瓣下方，或将游离皮片移植于含有血管束并有丰富血运的筋膜、大网膜等组织上，经过血管新生、吻接和沟通的血管化过程，将随意型皮瓣转化... 详细信息

预构皮瓣（prefabricated flap）是将知名血管束或含有知名血管的筋膜、肌肉等组织移位于随意型皮瓣下方，或将游离皮片移植于含有血管束并有丰富血运的筋膜、大网膜等组织上，经过血管新生、吻接和沟通的血管化过程，将随意型皮瓣转化为由知名血管供血的轴型组织瓣以供局部转移或游离移植。而将皮瓣中加入软骨、骨等组织再制作的皮瓣称为预制皮瓣（prelaminated flap），与预构皮瓣是不同的概念。

关键词：伤口愈合新生血管化,生理性扩张术预构皮瓣

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论汉武帝的治边方略

兰台世界 2018年第12期 144-146页

作者：王玉冲中国人民警察大学边防系

汉武帝初期,西汉的边防形势依然严峻。为破解安全困境,汉武帝在加强中央集权之后,开始了大规模经营边疆的活动。以战止战,维护边境稳定;凿通西域,完善统一格局;因险制塞,修筑防御工事;开发边疆,增强守御之备。汉武帝的治边举措促进了边... 详细信息

汉武帝初期,西汉的边防形势依然严峻。为破解安全困境,汉武帝在加强中央集权之后,开始了大规模经营边疆的活动。以战止战,维护边境稳定;凿通西域,完善统一格局;因险制塞,修筑防御工事;开发边疆,增强守御之备。汉武帝的治边举措促进了边疆地区的开发,增进了民族融合,维护了国家的统一,为西汉王朝提供了良好的发展环境,还促进了亚、欧、非之间的经济文化交流,对当今的边疆治理有着积极的启迪意义。

关键词：汉武帝边防治边方略

The Firstly Discovered Cosmic Spherules in Carbonaceous Siltstone from the Taizi Formation of the Mesoproterozoic Shennongjia Group,Central China

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Acta Geologica Sinica(English Edition) 2017年第3期91卷 1137-1138页

作者： KUANG Hongwei SONG Tianrui LIU Yongqing PENG Nan ZHU Zhicai FAN Zhengxiu wang yuchong XIA Xiaoxu SONG Huanxin TANG Yong Institute of Geology Chinese Academy of Geological Sciences China University of Geosciences Yangtze University

Objective Spherical micro-particles are often preserved in Precambrian sedimentary rocks. Finnish and Chinese scholars have previously discovered carbonaceous, siliceous or ferruginous spherules of out-space origin in the 1.6 Ga and 1.4 Ga sequence, respectively. The presence of spherules can record possible cosmic impact events. Also, cosmic spherules provide important information on the evolution of planets from outer space.

关键词： of on or is from The Firstly Discovered Cosmic Spherules in Carbonaceous Siltstone from the Taizi Formation of the Mesoproterozoic Shennongjia Group,Central China in

总体国家安全观视角下粤港澳大湾区非法出入境防控新探

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中国人民警察大学学报 2022年第9期38卷 17-23页

作者：甘杰王玉冲中国人民警察大学研究生院河北廊坊065000 中国人民警察大学移民管理学院河北廊坊065000

总体国家安全观对国家安全治理工作提出了新的要求。当前,粤港澳非法出入境呈现涉疫性、方式多样性、国际化、组织化、涉恐化等特点。运用偷渡犯罪成因三维一体动力模型分析得出,粤港澳非法出入境成因有经济差异、法律体系不完善、合作... 详细信息

总体国家安全观对国家安全治理工作提出了新的要求。当前,粤港澳非法出入境呈现涉疫性、方式多样性、国际化、组织化、涉恐化等特点。运用偷渡犯罪成因三维一体动力模型分析得出,粤港澳非法出入境成因有经济差异、法律体系不完善、合作机制不成熟、管控和查验压力大、部分群众法律意识淡薄等。对此,要以总体国家安全观为指导,推进系统治理,统筹发展和安全,加强法治建设,不断加强对粤港澳非法出入境的防控。

关键词：总体国家安全观粤港澳大湾区非法出入境