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Chinese Science Bulletin 2000年第21期45卷 1927-1933页

作者： WANG Qiang xu jifeng WANG Jianxin ZHAO Zhenhua WANG Renjing QIU Jiaxiang XIONG Xiaolin SANG Longkang PENG Lianhong Guangzhou Institute of Geochemistry Chinese Academy of SciencesGuangzhou 510640China Huhei Regional Geological Survey Wuhan 430000China China University of Geosciences Wuhan 430074China

Adakite is an igneous rock generated by the partial melting of subducting ocean slab in an island arc setting. Meanwhile, residuals of the slab-melting are transformed to eclogite or garnet-amphibolite during a slab subduction process. This note reports the adakite-type grey gneisses discovered in the North Dabie Mountain. These adakitic rocks are characterized by high AI2O3(14.97%-17.56%), Sr (545-941 μg/g), Sr/Y (44.71-218.98), La/Yb (16.70-97.50), and low Y (3.32-12.19μg/g), Yb (0.31-1.34 μg/g), Sc (0.92-4.2μg/g), as well as positive Sr anomaly but absent or positive Eu anomaly. They are different from the low aluminum grey gneisses with low AI2O3 (13.73%-14.38%), Sr (262-409 μg/g), Sr/Y (6.46-15.97) and La/Yb (1.90-22.60), high Y(21.79-36.24 μg/g), Yb (2.00-5.59 μg/g) , Sc (8.30%-12.70%), and negative Sr, Eu anomaly in the North Dabie Mountain. The adakite-type grey gneisses in the North Dabie Mountain were most probably formed by the partial melting of subducting ocean slab before the

关键词： adakite-type grey gneisses ultrahigh pressure metamorphism Dabie Mountain geochemistry tectonic setting.

Adakite-type sodium-rich rocks in Awulale Mountain of west Tianshan:Significance for the vertical growth of continental crust

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Chinese Science Bulletin 2001年第10期46卷 811-817页

作者： XIONG Xiaolin ZHAO Zhenhua BAI Zhenghua MEI Houjun WANG Yixian WANG Qiang xu jifeng Niu Hecai BAO Zhiwei Guangzhou Institute of Geochemistry Chinese Academy of SciencesGuangzhou 510640China State Key Laboratory of Mineral Deposit Research of Nanjing University Nanjing 210093China

The sodium-rich dacites and albite porphyries of Permian in the Awulale Mountain of west Tianshan have unique chemical and trace element signatures identical to adakite. These intermediate-acidic igneous rocks are characterized by high Na2O, Al2O3 and Sr contents and high Sr/Y and La/Y ratios (>40 and >20, respectively), and low Y and Yb contents, and strong depletion in HREE, and positive Eu anomaly. The (143Nd/144Nd)i is in the range from0.51236 to 0.51248 and the εNd(t) is positive value (+0.79-+3.11); the (87Sr/86Sr)i is in the range from 0.7052 to 0.7054. These Nd and Sr isotopic composition features indicate that the source rocks of these adakite-type rocks are from a weakly depleted mantle, or a depleted mantle, but was contaminated by the crustal materials. These adakite-type rocks were most likely derived from the partial melting of new underplated basaltic rocks under the conditions of amphibo-lite to eclogite transition in the postcollisional environment of North Xinjiang during the Permian

关键词： Awulale adakite-type rocks underplating vertical growth of continental crust.

三维地震全波形反演技术在煤矿综采工作面的应用

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能源研究与管理 2024年第1期16卷 145-153页

作者：杜少鹏徐吉丰孙瑞雪刘颂仁江晓磊郭曼北京中矿大地地球探测工程技术有限公司北京100038

煤岩界面的识别是煤矿智能化建设的关键一环,为解决此难点,以三维地震全波形反演技术为研究基础,采用建立目标函数和寻找最优化方法进行分析,对某矿工作面煤岩界面进行了详细探查。结合实际工作面地震资料,通过理论分析与实际计算,得到... 详细信息

煤岩界面的识别是煤矿智能化建设的关键一环,为解决此难点,以三维地震全波形反演技术为研究基础,采用建立目标函数和寻找最优化方法进行分析,对某矿工作面煤岩界面进行了详细探查。结合实际工作面地震资料,通过理论分析与实际计算,得到研究区全波形反演三维速度结构模型,并与巷道揭露情况进行误差对比分析,其结果表明:1)三维地震全波形反演可在井工煤矿下观测系统进行实际应用,可较为准确地反演出煤层顶底板界面三维空间形态特征;2)相较于地面三维地震的垂向精度5~30 m,该方法实际揭露计算误差纵波速度模型结果垂向平均误差为±1.3 m左右,横波速度模型结果垂向平均误差为±1.8 m左右,精度明显提升;3)三维纵波速度模型对煤层顶底板界面识别效果优于三维横波速度模型结果,对于横波结果,纵波结果识别精度平均提升27.78%;4)通过三维纵波速度模型可最终构建煤层顶底板三维空间特征,为煤层顶底板界面识别提供一种思路。

关键词：全波形反演弹性波三维速度结构模型界面识别误差分析

Multi-area Frequency-constrained Unit Commitment for Power Systems with High Penetration of Renewable Energy Sources and Induction Machine Load

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Journal of Modern Power Systems and Clean Energy 2024年第3期12卷 754-766页

作者： Leibao Wang Hui Fan jifeng Liang Longxun xu Tiecheng Li Peng Luo Bo Hu Kaigui Xie the State Grid Hebei Electric Power Research Institute Shijiazhuang 050021China State Key Laboratory of Power Transmission Equipment&System Security and New Technology Chongqing UniversityChongqing 400044China

The increasing penetration of renewable energy sources(RESs)brings great challenges to the frequency security of power *** traditional frequency-constrained unit commitment(FCUC)analyzes frequency by simplifying the average system frequency and ignoring numerous induction machines(IMs)in load,which may underestimate the risk and increase the operational *** this paper,we consider a multiarea frequency response(MAFR)model to capture the frequency dynamics in the unit scheduling problem,in which regional frequency security and the inertia of IM load are modeled with high-dimension differential algebraic equations.A multi-area FCUC(MFCUC)is formulated as mixed-integer nonlinear programming(MINLP)on the basis of the MAFR ***,we develop a multi-direction decomposition algorithm to solve the MFCUC *** original MINLP is decomposed into a master problem and *** subproblems check the nonlinear frequency dynamics and generate linear optimization cuts for the master problem to improve the frequency security in its optimal *** studies on the modified IEEE 39-bus system and IEEE 118-bus system show a great reduction in operational ***,simulation results verify the ability of the proposed MAFR model to reflect regional frequency security and the available inertia of IMs in unit scheduling.

关键词： Decomposition algorithm frequency response frequency-constrained unit commitment induction machine multi-area mixed-integer nonlinear programming(MINLP)

川西北松潘-甘孜地块大石包组玄武岩成因及其形成构造背景

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岩石学报 2005年第6期21卷 1539-1545页

作者：肖龙许继峰中国地质大学武汉430074 中国科学院广州地球化学研究所广州510640

川西北松潘-甘孜地块内二叠世大石包组玄武岩富集大离子亲石元素和高场强元素,具有与洋岛玄武岩相似的地球化学性质,形成于大陆板内环境。通过与典型峨眉山玄武岩之地球化学组成的对比研究,认为大石包玄武岩与峨眉山玄武岩中的高钛类玄... 详细信息

川西北松潘-甘孜地块内二叠世大石包组玄武岩富集大离子亲石元素和高场强元素,具有与洋岛玄武岩相似的地球化学性质,形成于大陆板内环境。通过与典型峨眉山玄武岩之地球化学组成的对比研究,认为大石包玄武岩与峨眉山玄武岩中的高钛类玄武岩性质相同,两者具有一个共同的成因,即部是峨眉山地幔柱活动的产物。由此推测峨眉山玄武岩不仅分布在扬子地块内部,向西还有一定的延伸,同时暗示了峨眉山地幔柱头部可能具有比现在所认识的更大的规模。

关键词：玄武岩大石包组峨眉山玄武岩地幔柱岩石成因松潘-甘孜

Numerical and Experimental Study on Stiffened Composite Panel Repaired by Bolted Joints under Compressive Load

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Journal of Applied Mathematics and Physics 2018年第8期6卷 1763-1771页

作者： jifeng xu Yuanpei Lan Xingming Zhang Kui Du Beijing Key Laboratory of Civil Aircraft Structures and Composite Materials Beijing Aeronautical Science & Technology Research Institute Beijng China

Numerical and experimental study was conducted to investigate the failure mode and strength performance of stiffened composite panel repaired by bolted joints under compressive load, and the results were then compared with those from virgin stiffened composite panel without any damage. A finite element analysis model was established for repaired and virgin stiffened composite panels under compressive load, the 3D Hashin criteria was applied to identify the composite structure failure, and the secondary stress criteria was adopted to identify the adhesive failure between the base laminate and the stiffener. The failure modes of repaired stiffened composite panels were stiffened composite panels breaking off along the bolt joints. The experimental results were consistent with the finite element analysis results, indicating the reliability of the finite element analysis model.

关键词： Stiffened Composite Panel Bolted Joints Repair Compression Performance 3D Finite Element Model

Disitamab vedotin,a HER2-directed antibody-drug conjugate,in patients with HER2-overexpression and HER2-low advanced breast cancer:a phase I/Ib study

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Cancer Communications 2024年第7期44卷 833-851页

作者： Jiayu Wang Yunjiang Liu Qingyuan Zhang Wei Li jifeng Feng XiaojiaWang Jianmin Fang Yiqun Han Binghe xu Department of Medical Oncology Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingP.R.China Breast Center The Fourth Hospital of Hebei Medical UniversityShijiazhuangHebeiP.R.China Department of Breast Medicine Harbin Medical University Cancer HospitalHarbinHeilongjiangP.R.China Department of Medical Oncology The First Hospital of Jilin UniversityChangchunJilinP.R.China Department of Medical Oncology Jiangsu Cancer HospitalNanjingJiangsuP.R.China Department of Breast Medicine Zhejiang Cancer HospitalHangzhouZhejiangP.R.China School of Life Science and Technology Tongji UniversityShanghaiP.R.China

Background:Disitamab vedotin(DV;RC48-ADC)is an antibody-drug conjugate comprising a human epidermal growth factor receptor 2(HER2)-directed antibody,linker and monomethyl auristatin *** studies have shown that DV demonstrated potent antitumor activity in preclinical models of breast,gastric,and ovarian cancers with different levels of HER2 *** this pooled analysis,we report the safety and efficacy of DV in patients with HER2-overexpression and HER2-low advanced breast cancer(ABC).Methods:In the phase I dose-escalation study(C001 CANCER),HER2-overexpression ABC patients received DV at doses of 0.5-2.5 mg/kg once every two weeks(Q2W)until unacceptable toxicity or progressive *** dose range,safety,and pharmacokinetics(PK)were *** phase Ib dose-range and expansion study(C003 CANCER)enrolled two cohorts:HER2-overexpression ABC patients receiving DV at doses of 1.5-2.5 mg/kg Q2W,with the recommended phase 2 dose(RP2D)determined,andHER2-lowABC patients receiving DV at doses of 2.0 mg/kg Q2W to explore the efficacy and safety of DV in HER2-low ***:Twenty-four patients with HER2-overexpression ABC in C001 CANCER,46 patients with HER2-overexpressionABCand 66 patients with HER2-low ABC in C003 CANCER were *** 2.0 mg/kg RP2D Q2W,the confirmed objective response rates were 42.9%(9/21;95%confidence interval[CI]:21.8%-66.0%)and 33.3%(22/66;95%CI:22.2%-46.0%),with median progression-free survival(PFS)of 5.7 months(95%CI:5.3-8.4 months)and 5.1 months(95%CI:4.1-6.6 months)for HER2-overexpression and HER2-low ABC,***(≥5%)grade 3 or higher treatment-emergent adverse events included neutrophil count decreased(17.6%),gamma-glutamyl transferase increased(13.2%),asthenia(11.0%),white blood cell count decreased(9.6%),peripheral neuropathy such as hypoesthesia(5.9%)and neurotoxicity(0.7%),and pain(5.9%).Conclusion:DV demonstrated promising efficacy in HER2-overexpression and HER2-low ABC,with a favorable safety profile at

关键词： antibody-drug conjugate breast cancer clinical trials disitamab vedotin HER2-low HER2-overexpression

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东易煤矿多层夹矸三维地质建模

能源研究与管理 2024年第2期16卷 109-115页

作者：苏传云何学明毕思存林治忠马喜瑞李志勇徐吉丰张旭东山西朔州平鲁区茂华东易煤业有限公司山西朔州036800 北京中矿大地地球探测工程技术有限公司北京100038

煤矿三维地质模型技术提高了煤矿可视化和透明化程度,加快了煤矿透明工作面和智能矿山建设在煤矿领域广泛应用。东易煤矿现阶段主要采用地质平面图和剖面图相结合的分析方法,无法直观展示地质体三维空间特征。针对这一问题,采用多源数... 详细信息

煤矿三维地质模型技术提高了煤矿可视化和透明化程度,加快了煤矿透明工作面和智能矿山建设在煤矿领域广泛应用。东易煤矿现阶段主要采用地质平面图和剖面图相结合的分析方法,无法直观展示地质体三维空间特征。针对这一问题,采用多源数据融合的三维地质建模技术对东易煤矿选定工作面进行三维建模分析。其结果表明:1)采用三维地质建模软件可有效刻画煤矿工作面的三维地质特征,完成了煤层、围岩、夹矸等模型建立,确定了研究区地质体三维空间形态,煤层整体呈现“西北高,东南低”单斜构造特征,煤层厚度呈现“东厚西薄”的特点;2)根据回采地质剖面信息,结合巷道测量等成果,采用三维建模手段可较好分析研究区内夹矸分布情况,其中G1、G2和G63层夹矸平均厚度>0.2 m,对后续开采可能影响最为集中;3)采用三维建模手段完成了多层夹矸的精细刻画,三维可视化表现了夹矸与煤层的三维空间形态特征,为煤矿透明工作面的建设提供数据支撑。

关键词：三维可视化地质建模软件三维地质建模多层夹矸分析

铼—锇同位素和铂族元素分析方法及地学应用进展

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地球科学进展 2021年第3期36卷 245-264页

作者：储银许继峰中国科学院地质与地球物理研究所岩石圈演化国家重点实验室北京100029 中国地质大学地球科学和资源学院北京100083

近30年来,国内外铼—锇(Re-Os)同位素和铂族元素(PGE)分析方法及其地学应用取得了诸多研究进展。首先对铼—锇同位素和铂族元素分析的样品溶解、化学分离及质谱测定等方面的进展情况进行了综述;然后,对铼—锇同位素和铂族元素在天体化... 详细信息

近30年来,国内外铼—锇(Re-Os)同位素和铂族元素(PGE)分析方法及其地学应用取得了诸多研究进展。首先对铼—锇同位素和铂族元素分析的样品溶解、化学分离及质谱测定等方面的进展情况进行了综述;然后,对铼—锇同位素和铂族元素在天体化学、大陆岩石圈地幔定年、金属矿床定年、沉积地层定年及古环境,以及在油气系统定年与示踪等领域的应用进展情况进行了简要评述。可供地质分析工作者针对不同分析任务及分析对象,选择分析方法并进一步发展Re-OsPGE分析技术时参考,也可供地质科研工作者开展Re-Os-PGE地球化学研究工作时借鉴。

关键词：铼—锇同位素铂族元素分析方法地学应用

基于升阶谱有限条法的复合材料壁板结构稳定性分析

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固体力学学报 2015年第4期36卷 346-359页

作者：冯侃徐吉峰中国商用飞机有限责任公司北京民用飞机技术研究中心北京102211

通过将升阶谱与有限条方法相结合,得到了以多项式级数为形函数的升阶谱有限条方法,并采用该方法对复合材料壁板结构在复杂边界条件下,受轴压、侧压及剪切载荷复合作用下的临界稳定性问题进行分析.数值算例结果表明,该方法综合了升阶谱... 详细信息

通过将升阶谱与有限条方法相结合,得到了以多项式级数为形函数的升阶谱有限条方法,并采用该方法对复合材料壁板结构在复杂边界条件下,受轴压、侧压及剪切载荷复合作用下的临界稳定性问题进行分析.数值算例结果表明,该方法综合了升阶谱和有限条的优点,可以快速稳定的精确求解复合材料壁板结构的临界失稳载荷.

关键词：有限条法升阶谱复合材料稳定性分析