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Geochemical and Zircon Hf-O Isotopic Constraints on the Origin of Wulian A-Type Granite in Shandong Peninsula,Eastern China

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Journal of Earth Science 2022年第3期33卷 609-622页

作者： Shuai Yuan He li lipeng Zhang Congying li haiyang l.u Ying-Yu Xue Weidong Sun Center of Deep Sea Research Institute of OceanologyCenter for Ocean Mega-ScienceChinese Academy of SciencesQingdao 266071China laboratory for Marine Mineral Resources Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China School of Marine Sciences University of Chinese Academy of SciencesBeijing 100049China

Early Cretaceous A-type granitic plutons are widely distributed in Shandong Peninsula,which are of great significance to understanding the regional tectonic *** we report geochemical characteristics,geochronological results,and zircon Hf-O isotope compositions of Wulian granites to reveal its origin and geological *** granites share most characteristics of the A_(2)-type *** u-Pb lA-ICPMS analysis for Wulian A-type granites yields average age of 116.6±2.1 *** O isotope values range from 4.20‰to 5.57‰,and these values are marginally identical to or slightly lower than those of mantle zircon(5.3‰±0.3‰).Zirconε_(Hf)(t)values(-26.1--23.5)indicate an enriched *** zircon Hf-O isotope compositions indicate that the source region of Wulian granites involves the components of ancient oceanic *** from Wulian granites have the lower chlorine(0.06 wt.%-0.15 wt.%)and higher fluorine contents(2.11 wt.%-2.48 wt.%)compared with haiyang pluton,together with their high(la/Gd)_(N),(la/Yd)_(N) and low(Gd/Yb)_(N) ratios and high oxygen state magma reflected from zircon,signifying that slab derived component was added into the overlying mantle region through fluid/*** geochemical characteristics of Wulian granites could be explained by the ridge(between the Izanagi and Pacific plates)subduction model,which began to influence the tectonic evolution of the Xuhuai region and Shandong Peninsula since~130±5 *** following slab window between two plates pl.usibly explains regional extension,resulting in hot magma upwelling and the formation of the A-type granite *** the lower Yangtze River belt and Shandong Peninsula A-type granite proves the northward movement of the ridge between the Pacific Plate and Izanagi Plate.

关键词： A-type granite Shandong Peninsula ridge subduction zircon Hf-O isotope magma

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建边农场地区早石炭世侵入岩年代学及构造环境

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黑龙江科技大学学报 2024年第2期34卷 237-243页

作者：杨贺平石国明徐东海姜海洋黑龙江省自然资源调查院哈尔滨150036

为研究古亚洲洋的闭合和中晚华力期成矿地质背景,利用岩石地球化学、年代学等方法,研究建边农场地区早石炭世侵入岩的岩石地球化学特征及年代学特征,探讨其构造环境。结果表明:在象鼻山屯东部二长花岗岩中获得一组谐和度较好的锆石年龄... 详细信息

为研究古亚洲洋的闭合和中晚华力期成矿地质背景,利用岩石地球化学、年代学等方法,研究建边农场地区早石炭世侵入岩的岩石地球化学特征及年代学特征,探讨其构造环境。结果表明:在象鼻山屯东部二长花岗岩中获得一组谐和度较好的锆石年龄,年龄为(330.3±2.1)Ma,成岩时代为早石炭世;岩石地球化学显示该期花岗岩化学成分上属铝弱饱和、钙碱性系列,成因类型为I型;该期岩浆岩对研究古亚洲洋的闭合和中晚华力期成矿地质背景均具有十分重要的意义,显示其为兴安地块与松嫩地块北东向拼合挤压过程由碰撞俯冲向后造山转换过程的产物。

关键词：建边农场地区锆石u-Pb年龄构造环境花岗岩

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Radioisotope production using lasers:From basic science to applications

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Matter and Radiation at Extremes 2024年第3期9卷 31-44页

作者： M.R.D.Rodrigues A.Bonasera M.Scisciò J.A.Pérez-Hernández M.Ehret F.Filippi P.l.Andreoli M.Huault H.larreur D.Singappuli D.Molloy D.Raffestin M.Alonzo G.G.Rapisarda D.lattuada G.l.Guardo C.Verona Fe.Consoli G.Petringa A.McNamee M.la Cognata S.Palmerini T.Carriere M.Cipriani G.Di Giorgio G.Cristofari R.De Angelis G.A.P.Cirrone D.Margarone l.Giuffrida D.Batani P.Nicolai K.Batani R.lera l.Volpe D.Giulietti S.Agarwal M.Krupka S.Singh Fa.Consoli Cyclotron Institute Texas A&M UniversityCollege StationTexas 77840USA laboratori Nazionali del Sud Istituto Nazionale di Fisica Nucleare(LNS-INFN)CataniaItaly ENEA Fusion and Technologies for Nuclear Safety and Security Department-CFrascatiItaly Centro de láseres Pulsados(cl.u) VillamayorSpain universidad de Salamanca SalamancaSpain Centre lasers Intenses et Applications(CElIA) Universitéde BordeauxCNRSCEATalenceFrance HB11 Energy Holdings Pty FreshwaterNew South WalesAustralia School of Mathematics and Physics Queen’s University BelfastBelfastUnited Kingdom Dipartimento di Fisica e Astronomia“E.Majorana ”Università di CataniaCataniaItaly Facoltàdi Ingegneria e Architettura Universitàdegli Studi di Enna“Kore”EnnaItaly Dipartimento di Ingegneria Industriale Universitàdi Roma“Tor Vergata”RomaItaly Dipartimento di Fisica e Geologia Universitàdegli Studi di PerugiaPerugiaItaly Istituto Nazionale di Fisica Nucleare Sezione di PerugiaPerugiaItaly ElI Beamlines Facility the Extreme Light Infrastructure ERICDolni BrezanyCzech Republic ETSIA Universidad Politécnica de MadridMadridSpain Dipartimento Fisica “E.Fermi”Universitàdi Pisa and INFNPisaItaly FZu–Institute of Physics of Czech Academy of Sciences PragueCzech Republic Institute of Plasma Physics of Czech Academy of Sciences PragueCzech Republic

The discovery of chirped pulse amplification has led to great improvements in laser technology,enabling energetic laser beams to be compressed to pulse durations of tens of femtoseconds and focused to a few *** with energies of tens of MeV can be accelerated using,for instance,target normal sheath acceleration and focused on secondary *** such conditions,nuclear reactions can occur,with the production of radioisotopes suitable for medical *** use of high-repetition lasers to produce such isotopes is competitive with conventional methods mostly based on *** this paper,we study the production of^(67)Cu,^(63)Zn,^(18)F,and^(11)C,which are currently used in positron emission tomography and other *** the same time,we study the reactions^(10)B(p,α)^(7)Be and^(70)Zn(p,4n)^(67)Ga to put further constraints on the proton distributions at different angles,as well as the reaction^(11)B(p,α)^(8)Be relevant for energy *** experiment was performed at the 1 PW laser facility at VegaⅢin Salamanca,*** distributions of radioisotopes in the forward(with respect to the laser direction)and backward directions were measured using a high purity germanium *** results are in reasonable agreement with numerical estimates obtained following the approach of Kimura and Bonasera[*** ***.,Sect.A 637,164–170(2011)].

关键词： purity estimates backward

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Observation about the Classical Electromagnetic Gauge Transformation and Its Quantum Correspondence

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Journal of Modern Physics 2024年第4期15卷 474-479页

作者： Gustavo V. lópez Jorge A. lizarraga Departamento de Física Universidad de Guadalajara Guadalajara Mexico

using the landau and symmetric gauges for the vector potential of a constant magnetic field and the quantum problem of a charged particle moving on a flat surface, we show the classical electromagnetic gauge transformation does not correspond to a one-dimensional.unitary group transformation u(1) of the wave function for the quantum case. In addition, with the re-examination of the relation between the magnetic field B and its vector potential A, we found that, in order to have a consistent formulation of the dynamics of the charged particle with both expressions, we must have that B=∇×A if and only if B≠0.

关键词： Gauge Transformation Harmonic Oscillator Quantum Hall Effect Electromagnetic Potentials

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量化体育锻炼对维持性血液透析患者心理状态的影响

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河北医药 2024年第12期46卷 1853-1855页

作者：霍海洋刘晓东伏广浩赵小培江苏省连云港市第二人民医院血液透析室 222000

目的研讨维持性血液透析(MHD)患者接受量化体育锻炼对其心理状态的影响。方法选取2021年4月至2023年6月行MHD的患者120例并随机分为对照组和观察组,每组60例。对照组予以常规体育锻炼,观察组予以量化体育锻炼,对比2组的干预效果。结果... 详细信息

目的研讨维持性血液透析(MHD)患者接受量化体育锻炼对其心理状态的影响。方法选取2021年4月至2023年6月行MHD的患者120例并随机分为对照组和观察组,每组60例。对照组予以常规体育锻炼,观察组予以量化体育锻炼,对比2组的干预效果。结果观察组干预后的血清肌酐(Scr)(234.78±23.77)mmol/l、血尿素氮(BuN)(8.34±1.16)μmol/l显著低于对照组,2组比较差异有统计学意义(P0.05),干预后观察组该量表明显降低,且低于对照组,差异有统计学意义(Pl量表测评结果低于对照组,差异有统计学意义(P<0.05)。结论量化体育锻炼能够有效缓解MHD患者的焦虑情绪,增加其步行运动量,改善其肾功能水平,调节患者骨矿物质指标,促进生活质量提升。

关键词：维持性血液透析量化体育锻炼肾功能心理状态

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琼东南盆地潜山晚三叠世辉绿岩的年代学、地球化学及其构造背景

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成都理工大学学报（自然科学版） 2024年第4期51卷 543-560页

作者：周虎付于真胡潜伟侯明才陈安清曹海洋熊富浩楚志强成都理工大学地球与行星科学学院成都610059 油气藏地质及开发工程全国重点实验室(成都理工大学) 成都610059 中海石油(中国)有限公司海南分公司海口570100

琼东南盆地中生代火成岩潜山是海域油气勘探的热点领域,但由于缺少系统的年代学和地球化学分析,有关潜山基岩的岩石成因与动力学背景仍不清楚,制约了潜山油气藏的进一步勘探。本项研究以钻井揭露的辉绿岩为研究对象,开展岩石学、年代学... 详细信息

琼东南盆地中生代火成岩潜山是海域油气勘探的热点领域,但由于缺少系统的年代学和地球化学分析,有关潜山基岩的岩石成因与动力学背景仍不清楚,制约了潜山油气藏的进一步勘探。本项研究以钻井揭露的辉绿岩为研究对象,开展岩石学、年代学、地球化学和lu-Hf同位素研究,探讨其岩石成因与动力学背景。lA-ICP-MS锆石u-Pb年代学揭示辉绿岩结晶年龄为(236±3)Ma,形成于晚三叠世。辉绿岩中SiO 2(47.96%~49.97%)和Al 2O 3(13.16%~13.68%)的质量分数较低,MgO的质量分数(6.02%~7.49%)和Mg^(#)值(58~61)较高。岩石具有右倾的稀土配分模式及正Eu异常特征,且样品富集大离子亲石元素,亏损高场强元素。岩石具有富集的锆石Hf同位素组成(εHf(t)=-9.08~-4.70)。岩石成因分析表明,辉绿岩起源于富集地幔熔融,且源区经历了早期俯冲沉积物来源的含水熔体的交代改造。本项研究揭示,琼东南盆地晚三叠世辉绿岩形成于碰撞后伸展环境,属于古特提斯造山旋回的产物。

关键词：琼东南盆地潜山年代学地球化学大地构造

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一种高真空零部件放气率测试装置的研制

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真空科学与技术学报 2024年第6期44卷 477-487页

作者：胡晓月陈俊儒胡庆生杨传森姜娟徐海洋许昌军宋春尧刘迪中国科学院合肥物质科学研究院等离子体物理研究所合肥230031 北京东方计量测试研究所北京100029 北京市真空计量检测工程技术研究中心北京100029

材料的真空放气特性是聚变装置需重点研究和关注的内容。为了研究大尺寸组件在聚变装置真实运行环境下的放气特性,基于对称结构流导法针对性设计研制了一套放气率测试装置,该装置能模拟聚变装置烘烤温度条件(室温~300℃)且测量范围覆盖(... 详细信息

材料的真空放气特性是聚变装置需重点研究和关注的内容。为了研究大尺寸组件在聚变装置真实运行环境下的放气特性,基于对称结构流导法针对性设计研制了一套放气率测试装置,该装置能模拟聚变装置烘烤温度条件(室温~300℃)且测量范围覆盖(10^(-5)~10^(-9)) Pa·m^(3)·s^(-1)量级。此外,重点针对样品室的加热、冷却系统进行热仿真验证以确保零部件在放气率测试时能模拟其在托卡马克真空室内烘烤过程中的温升工况。装置样品室尺寸为φ500 mm×600 mm,主体材料使用SuS316l不锈钢且内表面采用超高真空工艺处理。样品室设计有加热平台和真空室外壁的联合加热模块,以实现对被测样品25℃~300℃的加热;样品室隔热层外侧设有水冷系统以保障降温效率和人员接触安全性。对样品室的烘烤、冷却设计进行热仿真分析发现:隔热层起到了有效的保温隔热作用,内外层温差近150℃;水冷系统起到显著的降温效果,使人员接触的最外层区域温度不超过55℃;在联合加热模式下的升温效率和加热能力优于仅使用样品台热传导升温。初步测试表明,装置可实现稳定的可控烘烤性能,本底放气成分分析表明该装置本底清洁运转良好,可以满足聚变装置零部件的放气率测试要求。

关键词：放气率样品室结构设计仿真分析装置研制

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固化剂与水泥稳定工业副产石膏路用性能试验分析

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上海公路 2024年第2期 172-181,I0015页

作者：周媛练海洋朱祥勇王军裴建松郑炳锋南京江北新区管理委员会建设与交通局江苏南京211899 南京江北生态环境科技园有限公司江苏南京210044 苏交科集团股份有限公司江苏南京210019 新型道路材料国家工程研究中心江苏南京210019 东南大学江苏南京211189

针对工业副产石膏用于路面底基层的力学性能分析,通过6%水泥与0.3 l/m^(3)固化组合稳定工业副产石膏,开展无侧限抗压强度、劈裂强度、抗压回弹模量及单轴压缩弹性模量的力学性能评价,并与常规底基层类型12%灰土进行对比分析。结果表明:... 详细信息

针对工业副产石膏用于路面底基层的力学性能分析,通过6%水泥与0.3 l/m^(3)固化组合稳定工业副产石膏,开展无侧限抗压强度、劈裂强度、抗压回弹模量及单轴压缩弹性模量的力学性能评价,并与常规底基层类型12%灰土进行对比分析。结果表明:随着养生时间的增加,12%灰土和水泥与固化剂稳定工业副产石膏的抗压强度随着养生时间的增加而逐渐增大,增长速率先快后慢,7 d内强度增长速度最快,不浸水的条件下,两种材料均达到了28 d强度的75%左右,表明两种材料的强度形成主要在前期;随着浸水时间的增加,两种材料的无侧限抗压强度和劈裂强度逐渐减小,浸水48 h条件下的无侧限抗压强度、劈裂强度损失率大,水泥与固化剂稳定工业副产石膏的抗压强度和劈裂强度受浸水的影响小于12%灰土,其水稳定性更好。12%灰土和水泥与固化剂稳定工业副产石膏的抗压回弹模量分别为391 MPa和1207 MPa,弹性模量分别378 MPa和2247 MPa。水泥与固化剂稳定工业副产石膏的模量优于12%灰土,主要是由于固化剂与水泥的加入,增加了颗粒之间的黏结力,赋予了石膏较强的抵抗竖向变形的能力。

关键词：力学性能工业副产石膏路面底基层无侧限抗压强度劈裂强度模量

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A New Proof for Congruent Number’s Problem via Pythagorician Divisors

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Advances in Pure Mathematics 2024年第4期14卷 283-302页

作者： léopold Dèkpassi Keuméan François Emmanuel Tanoé uFR Mathematics and Computer Science F&#233lix Houphou&#235t Boigny University Abidjan Cote d&#8217Ivoire

Considering Pythagorician divisors theory which leads to a new parameterization, for Pythagorician triplets ( a,b,c )∈ ℕ 3∗ , we give a new proof of the well-known problem of these particular squareless numbers n∈ ℕ ∗ , called congruent numbers, characterized by the fact that there exists a right-angled triangle with rational sides: ( A α ) 2 + ( B β ) 2 = ( C γ ) 2 , such that its area Δ= 1 2 A α B β =n;or in an equivalent way, to that of the existence of numbers u 2 , V 2 , W 2 ∈ ℚ 2∗ that are in an arithmetic progression of reason n;Problem equivalent to the existence of: ( a,b,c )∈ ℕ 3∗ prime in pairs, and f∈ ℕ ∗ , such that: ( a−b 2f ) 2 , ( c 2f ) 2 , ( a+b 2f ) 2 are in an arithmetic progression of reason n;And this problem is also equivalent to that of the existence of a non-trivial primitive integer right-angled triangle: a 2 + b 2 = c 2 , such that its area Δ= 1 2 ab=n f 2 , where f∈ ℕ ∗ , and this last equation can be written as follows, when using Pythagorician divisors: (1) Δ= 1 2 ab= 2 S−1 d e ¯ ( d+ 2 S−1 e ¯ )( d+ 2 S e ¯ )=n f 2;Where ( d, e ¯ )∈ ( 2ℕ+1 ) 2 such that gcd( d, e ¯ )=1 and S∈ ℕ ∗ , where 2 S−1 , d, e ¯ , d+ 2 S−1 e ¯ , d+ 2 S e ¯ , are pairwise prime quantities (these parameters are coming from Pythagorician divisors). When n=1 , it is the case of the famous impossible problem of the integer right-angled triangle area to be a square, solved by Fermat at his time, by his famous method of infinite descent. We propose in this article a new direct proof for the numbers n=1 (resp. n=2 ) to be non-congruent numbers, based on an particular induction method of resolution of Equation (1) (note that this method is efficient too for general case of prime numbers n=p≡a ( ( mod8 ) , gcd( a,8 )=1 ). To prove it, we use a classical proof by induction on k , that shows the non-solvability property of any of the following systems ( t=0 , corresponding to case n=1 (resp. t=1 , corresponding to case n=2 )): ( Ξ t,k ){ X 2 + 2 t ( 2 k Y ) 2 = Z 2 X 2 + 2

关键词： Prime Numbers-Diophantine Equations of Degree 2 & 4 Factorization Greater Common Divisor Pythagoras Equation Pythagorician Triplets Congruent Numbers Inductive Demonstration Method Infinite Descent BSD Conjecture

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Assessment of POC CD4 Detecting Mode in District or County labs-Jiangsu Province, China, 2021

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China CDC weekly 2022年第47期4卷 1059-1065,I0003页

作者： Zhi Zhang Xiaoqin Xu Chengqing Sun Jing lu haiyang Hu Ying Zhou Gengfeng Fu Department of HIV/STD Control and Prevention Jiangsu Provincial Center for Disease Control and PreventionNanjing CityJiangsu ProvinceChina School of Public Health Nanjing Medical UniversityNanjing CityJiangsu ProvinceChina.

Objective:This study seeks to explore efficient and multiple-item detection modes in new-style HIV labs,as well as access the accuracy and reliability of CD4 cell count detected by point of care(POC)to analyze POC work feasibility in district or county ***:POC devices adopted in grassroots-level labs and flow cytometers adopted in prefecture-level labs were used to analyze the same group of blood *** individual results were collected and compared for parametric tests in correlation and ***:The Pearson correlation coefficients(r)between results detected by FACSPresto and those by FACSCalibur,FACSVia,FACSCantoII,and EPICSXl were 0.922,0.938,0.914,and 0.823,respectively;the average deviations were−25.64,24.68,3.05,and 70.97 cells/μl,respectively;the Pearson correlation coefficient(r)between results by Pima and FACSCalibur,FACSVia,FACSCantoII,and EPICSXl were 0.900,0.950,0.954,and 0.876,respectively;and the average deviations were−73.99,−40.78,−29.32,and−22.75 cells/μl,***:Strong positive correlations and good consistency were observed between the CD4 count tested by POC and flow *** findings provide theoretical support for new-style HIV labs and one-stop services,which can provide shorter testing duration and simpler testing processes,so that the most comprehensive testing results can be obtained in the shortest amount of time.

关键词： testing simpler shortest

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