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Identification and evolution of tectonic units in the Philippine Sea Plate

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China Geology 2022年第1期5卷 96-109页

作者： Tian-yu Zhang pan-feng li Lu-ning Shang Jing-yi Cong Xia li Yong-jian Yao Yong Zhang Qingdao Institute of Marine Geology China Geological SurveyMinistry of Natural ResourcesQingdao 266071China Laboratory for Marine Mineral Resources Pilot National Laboratory for Marine Science and TechnologyQingdao 266000China Guangzhou Marine Geological Survey China Geological SurveyMinistry of Natural ResourcesGuangzhou 510075China

The Philippine Sea Plate is located at the convergence zone of the Eurasian Plate,the Pacific Plate,and the Indo-Australian *** paper divides the Philippine Sea Plate into two second-order tectonic units and eight third-order tectonic units by summarizing the marine geological,geophysical,and submarine geomorphological data of the Philippine Sea Plate collected for years and referring to the seafloor spreading theory and the trench-arc-basin *** two second-order tectonic units are the West Philippine Sea block and the Izu-Bonin-Mariana arc-basin *** former includes the West Philippine Basin,the Huatung Basin,the Daito Basin,and the Palau Basin,while the latter consists of the Kyushu-Palau Ridge,the Shikoku-Parece Vela Basin,the Izu-Bonin Arc,and the Mariana ***,this study concludes that the Philippine Sea Plate has undergone three stages of tectonic evolution,namely the early stage of the evolution of marginal basins with Cretaceous basement(Early Cretaceous),the middle stage of the spreading of the West Philippine Basin(Eocene),and the late stage of the subduction of the Izu-Bonin-Mariana arc-basin system(Oligocene-present).The Kyushu-Palau Ridge is a window to discover the tectonic evolution of the Philippine Sea Plate due to its unique geographical location.

关键词： Philippine Sea Plate Tectonic unit Tectonic evolution Trench-arc-basin system Kyushu-Palau Ridge Izu-Bonin-Mariana arc Marine scientific survey

Structural characteristics of the KPR-CBR triple-junction inferred from gravity and magnetic interpretations,Philippine Sea Plate

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China Geology 2021年第4期4卷 541-552页

作者： Lu-ning Shang pan-feng li Run-lin Du feng-long Bai Gang Hu Wen-chao Lü Xia li Xi Mei Tian-yu Zhang Hou-zhen Cao Jing-yi Cong Xian-yao Shi Qingdao Institute of Marine Geology China Geological SurveyMinistry of Natural ResourcesQingdao 266071China Laboratory for Marine Mineral Resources Pilot National Laboratory for Marine Science and TechnologyQingdao 266000China China Geological Survey Ministry of Natural ResourcesBeijing 100037China

The intersection of the Kyushu-Palau Ridge(KPR)and the Central Basin Rift(CBR)of the West Philippine Basin(WPB)is a relic of a trench-trench-rift(TTR)type triple-junction,which preserves some pivotal information on the cessation of the seafloor spreading of the WPB,the emplacement and disintegration of the proto-Izu-Bonin-Mariana(IBM)Arc,and the transition from initial rifting to steady-state spreading of the Parece Vela Basin(PVB).However,the structural characteristics of this triple-junction have not been thoroughly *** this paper,using the newly acquired multi-beam bathymetric,gravity,and magnetic data obtained by the Qingdao Institute of Marine Geology,China Geological Survey,the authors depict the topographic,gravity,and magnetic characteristics of the triple-junction and adjacent *** including the upward continuations and total horizontal derivatives of gravity anomaly are also performed to highlight the major structural features and *** on these works,the morphological and structural features and their formation mechanisms are *** results show that the last episode amagmatic extension along the CBR led to the formation of a deep rift valley,which extends eastward and incised the *** morphological and structural fabrics of the KPR near and to the south of the triple-junction are consistent with those of the western PVB,manifesting as a series of NNE-SSW-and N-S-trending ridges and troughs,which were produced by the extensional faults associated with the initial rifting of the *** superposition of the above two reasons induced the prominent discontinuity of the KPR in deep and shallow crustal structures between 15°N‒15°30′N and 13°30′N‒14°*** with previous authors’results,we propose that the stress produced by the early spreading of the PVB transmitted westward and promoted the final stage amagmatic extension of the *** eastward propagation of the CBR destroyed the KPR,of which the magmatis

关键词： Kyushu-Palau Ridge Central Basin Rift Tecto-morphological features Gravity and magnetic anomalies Back-arc spreading Structural discontinuities Philippine Sea Plate Marine scientific survey

Influencing factors and evaluation application of regional crustal stability in the Bohai Strait

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China Geology 2019年第3期2卷 354-363页

作者： Sai Mei Hong-xian Chu ling-yu Dong Zhong-hua Fang pan-feng li Fei-fei Zhang Rui Shan Tie-hu Zhao Qingdao Institute of Marine Geology China geological surveyMinistry of Natural ResourcesQingdao 266071China Laboratory for Marine Mineral Resources Qingdao National Laboratory for Marine Science and TechnologyQingdao 266071China

Due to the extremely complex geological conditions in the Bohai Strait, active faults is very developed and earthquake activity occurs frequently. It is of great importance to evaluate the regional crustal stability for the planning and construction of the Trans-straits Passage. In this study, the authors carry out the evaluation by means of buffer analysis, topology analysis and overlay analysis based on ArcGIS software. The evaluation mainly analyzed six assessment factors of Bohai Strait including neotectonic activity, active faults distribution, seismicity, tectonic stress fields, Bouguer gravity anomaly and geological disasters. In brief, the crustal stability of the eastern North Yellow Sea Basin is best, while that of the Bohai Basin and southwest Bohai Strait is poor. Meanwhile, small and frequent earthquakes in the southern Strait and geological disasters developed in the northern and central Strait such as tidal ridge and shallow gas which may adversely impact on the Trans-straits Passage construction.

关键词： Regional crustal stability Trans-straits Passage Coastal geological survey Engineering GIS Bohai Strait China

铝合金/不锈钢双光束激光深熔焊接接头组织及力学性能

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金属学报 2016年第11期52卷 1388-1394页

作者：潘峰崔丽钱伟贺定勇魏世忠北京工业大学材料科学与工程学院北京100124

采用双光束光纤激光热源对1.5 mm厚5083铝合金和1.8 mm厚304不锈钢异种合金搭接接头进行了激光深熔焊接工艺实验,研究了光束相对位置对接头焊缝成形、界面组织及接头力学性能的影响.结果表明,在无任何填充材料条件下,采用双光束激光进... 详细信息

采用双光束光纤激光热源对1.5 mm厚5083铝合金和1.8 mm厚304不锈钢异种合金搭接接头进行了激光深熔焊接工艺实验,研究了光束相对位置对接头焊缝成形、界面组织及接头力学性能的影响.结果表明,在无任何填充材料条件下,采用双光束激光进行铝合金/不锈钢异种合金激光深熔焊接能够获得良好的焊缝表面成形,小能量分光束在前的接头界面金属间化合物(IMC)厚度相对较薄.接头界面纳米硬度测试结果表明,IMC层平均硬度为9.61 GPa,且明显高于不锈钢母材(4.12 GPa)和铝合金母材(1.09 GPa).接头拉伸断裂于铝合金/不锈钢IMC界面层.小能量分光束在前的接头获得机械抗力大于分光束在后的接头.

关键词：铝合金/不锈钢异种合金双光束激光深熔焊金属间化合物(IMC)

Engineering atomic Rb-N configurations to tune radical pathways for highly selective photocatalytic H2O2 synthesis coupled with biomass valorization

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Journal of Energy Chemistry 2025年第1期100卷 215-225页

作者： Jiaye li Shuang pan Yihuang Chen Qiong liu College of Chemistry and Materials Engineering Wenzhou University Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology (China) Institute of Analysis Guangdong Academy of Sciences (China National Analytical CenterGuangzhou)

Photocatalytic oxygen reduction for hydrogen peroxide （H2O2） synthesis presents a green and costeffective production ***,achieving highly selective H2O2synthesis remains challenging,necessitating precise control over free radical reaction pathways and minimizing undesirable oxidative ***,we report for the visible light-driven simultaneous co-photocatalytic reduction of O2to H2O2and oxidation of biomass using the atomic rubidium-nitride modified carbon nitride（CNRb）.The optimized CNRb catalyst demonstrates a record photoreduction rate of 8.01 mM h-1for H2O2generation and photooxidation rate of 3.75 mM h-1for furfuryl alcohol to furoic acid,achieving a remarkable solar-to-chemical conversion （SCC） efficiency of up to 2.27%.Experimental characterizations and DFT calculation disclosed that the introducing atomic Rb–N configurations allows for the high-selective generation of superoxide radicals while suppressing hydroxyl free radical *** is because the Rb–N serves as the new alternative site to perceive a stronger connection position for O2adsorption and reinforce the capability to extract protons,thereby triggering a high selective redox product *** study holds great potential in precisely regulating reactive radical processes at the atomic level,thereby paving the way for efficient synthesis of H2O2coupled with biomass valorization.

关键词： Atomic economy Radical pathway regulation Rubidium atom coordination Biomass valorization

基于Ansys Workbench的塑料蜂窝板仿真分析及优化

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包装工程 2016年第23期37卷 44-49页

作者：潘凤丽李光天津科技大学天津300222

目的通过对PVC,PP,PE这3种材料的塑料蜂窝板蜂窝单元进行多目标优化求解,得到PVC,PP,PE这3种材料塑料蜂窝板的最优结构参数。方法利用Ansys Workbench仿真分析和多目标优化迭代求解。结果硬质PVC材料的蜂窝板蜂窝单元的最优结构参数是... 详细信息

目的通过对PVC,PP,PE这3种材料的塑料蜂窝板蜂窝单元进行多目标优化求解,得到PVC,PP,PE这3种材料塑料蜂窝板的最优结构参数。方法利用Ansys Workbench仿真分析和多目标优化迭代求解。结果硬质PVC材料的蜂窝板蜂窝单元的最优结构参数是蜂窝边长为10.135mm,蜂窝壁厚为0.151 44 mm,蜂窝高度为10.925 mm;PP材料的蜂窝板蜂窝单元的最优结构参数是蜂窝边长为10.001 mm,蜂窝壁厚为0.150 24 mm,蜂窝高度为10.621 mm;HDPE材料的塑料蜂窝板蜂窝单元的最优结构参数是蜂窝边长为10.998 mm,蜂窝壁厚为0.150 16 mm,蜂窝高度为10.196 mm。优化后的质量有了明显的降低,PVC蜂窝板的质量降低了10.74%,PP蜂窝板的质量降低了11.11%,HDPE蜂窝板的质量降低了11.97%。结论通过Ansys Workbench进行仿真分析和多目标优化设计能够快速有效地得到结构件最优结构参数。

关键词：塑料蜂窝板蜂窝单元多目标优化优化设计

Methods for determination of absolute configuration of monosaccharides

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Chinese Herbal Medicines 2018年第1期10卷 14-22页

作者： nan zhang wei-xing huang gui-yang xia mahmood brobbey oppong li-qing ding pan li feng qiu school of chinese materia medica tianjin university of traditional chinese medicinetianjin 300193china tianjin state key laboratory of modern chinese medicine tianjin university of traditional chinese medicinetianjin 300193china

Monosaccharides are one of the most important structural components of biomolecules, such as polysac- charides, nucleic acids, glycolipids and glycoproteins. In structural analysis of polysaccharides and gly- coconjugates, the absolute configurations （D or L） of the constituent monosaccharides are usually deter- mined by measurement of the optical rotation, CD spectra or characteristic chromatographic retention behavior. However, each method has its unique advantages and limitations which should be considered while using them. In this review, an overview of the different methods for the determination of absolute configuration of monosaccharides and their underlying principles are summarized to serve as a reference for researchers.

关键词： absolute configuration CD chemical derivatization - chromatography monosaccharides optical rotation

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一种视网膜血管自适应提取方法

中国图象图形学报 2006年第3期11卷 310-316页

作者：潘立丰王利生上海交通大学图像处理与模式识别研究所上海200030

为了快速有效地提取视网膜血管,根据视网膜图像的灰度分布特征,提出了一种新的基于自适应阈值化的血管提取方法。该方法是首先把图像划分成很多同样尺寸的小子图像,然后在每个子图像中分别计算局部阈值,并用该阈值分割该子图像。因为视... 详细信息

为了快速有效地提取视网膜血管,根据视网膜图像的灰度分布特征,提出了一种新的基于自适应阈值化的血管提取方法。该方法是首先把图像划分成很多同样尺寸的小子图像,然后在每个子图像中分别计算局部阈值,并用该阈值分割该子图像。因为视网膜图像中血管和背景在局部范围内都比较均匀,所以在每个子图像中都存在一个局部阈值能够将其中的血管分割出来。采用的局部阈值计算方法不仅允许子图像可以取得很小,而且能够保证得到平方误差最小意义下的最优阈值。在阈值计算过程中,还用到一种基于过零点边缘检测技术的边缘追踪算法。最后还提出一种基于区域生长的特征综合方法,即通过综合两次阈值化分割得到的血管结构来清除碎片。多幅视网膜图像的实验证明,该方法的计算速度很快,并且可以提取包括细血管在内的绝大部分血管。

关键词：血管分割自适应阈值化过零点边缘追踪区域生长

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青年女子体型的特征指标及岭回归预测研究

纺织学报 2006年第4期27卷 56-59页

作者：邹奉元丁笑君潘力丰浙江理工大学服装学院浙江杭州310018

利用三维人体测量仪，选择430名年龄在18～23岁之间的江浙籍青年女子测量其体型指标；对影响人体体型的46个部位尺寸数据进行了聚类分析，得到了决定并区分女子体型的典型指标：身高、前长、胸高、胸围、臀围和总肩宽。建立了能广泛应... 详细信息

利用三维人体测量仪，选择430名年龄在18～23岁之间的江浙籍青年女子测量其体型指标；对影响人体体型的46个部位尺寸数据进行了聚类分析，得到了决定并区分女子体型的典型指标：身高、前长、胸高、胸围、臀围和总肩宽。建立了能广泛应用人体细部规格与基本部位之间的岭回归模型关系，从而可以通过典型指标预测细部规格，其预测模型值的准确度高，相关性检验显著，可使制作的服装样板更加准确、合体。

关键词：体型特征聚类分析岭回归分析预测模型