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Diatoms as indicators of environmental change in coastal areas:a case study in lianjiang coast of East China Sea

Acta Oceanologica Sinica 2024年第8期43卷 47-57页

作者： Tong li Jihui Zhang Dongling li Chengxu Zhou Chenxi liu Hao Xu Bing Song longbin Sha Donghai Academy Ningbo UniversityNingbo 315211China Department of Geography and Spatial Information Techniques Ningbo UniversityNingbo 315211China College of Food Science and Engineering Ningbo UniversityNingbo 315211China State Key Laboratory of Lake Science and Environment Nanjing Institute of Geography and LimnologyChinese Academy of SciencesNanjing 210008China

Owing to the significant differences in environmental characteristics and explanatory factors among estuarine and coastal regions,research on diatom transfer functions and database establishment remains *** study analysed diatoms in surface sediment samples and a sediment core from the lianjiang coast of the East China Sea,together with environmental *** component analysis of the environmental variables showed that sea surface salinity(SSS)and sea surface temperature were the most important factors controlling hydrological conditions in the lianjiang coastal area,whereas canonical correspondence analysis indicated that SSS and pH were the main environmental factors affecting diatom *** on the modern diatom species–environmental variable database,we developed a diatom-based SSS transfer function to quantitatively reconstruct the variability in SSS between 1984 and 2021 for sediment core HK3 from the lianjiang coastal *** agreement between the reconstructed SSS and instrument SSS data from 1984 to 2021 suggests that diatombased SSS reconstruction is reliable for studying past SSS variability in the lianjiang coastal *** low SSS events in AD 2019,2013,and 1999,together with an increased relative concentration of freshwater diatom species and coarser sediment grain sizes,corresponded to two super-typhoon events and a catastrophic flooding event in lianjiang ***,a diatom-based SSS transfer function for reconstructing past SSS variability in the estuarine and coastal areas of the East China Sea can be further used to reflect the paleoenvironmental events in this region.

关键词： diatom transfer function multivariate statistical analysis environmental variable sea surface salinity

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Geochemical characteristics and diagenetic fluids of dolomite reservoirs in the Huanglong Formation, Eastern Sichuan Basin, China

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Petroleum Science 2014年第1期11卷 52-66页

作者： Wen Huaguo Wen longbin Chen Haoru Zheng Rongcai Dang Lurui li Yanan State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of Technology Institute of Sedimentary Geology Chengdu University of Technology Chongqing Gas District of Southwest Oil and Gas Company of CNPC

Based on a comprehensive study of texture,diagenetic behavior and evolution of dolomite in the Huanglong Formation,trace （e.g.,Fe,Mn and Sr） and rare earth element （REE） geochemistry,andisotopic characteristics （e.g.,C,O and Sr）,four types of diagenetic fluids are identified in the Huanglong Formation dolomite reservoirs of the Eastern Sichuan Basin,China：1）：marine-derived pore waters in the marine diagenetic environment,2） sabkha compaction brine conserved in the early shallowburied diagenetic environment,3） strongly-oxidizing low-temperature meteoric water in the seepagesubsurface flow diagenetic environment,and 4） strongly reducing deeply seated mixed hot brine in the middle and deep burial diagenetic *** fluids developed hereditarily from one environment to another,which resulted in its respective *** characteristics play an important role in the development of dolomite reservoirs：1） dolomitization by marine-derived pore water in the quasisyngenetic stage did not form an effective reservoir; 2） early diagenetic burial dolomitization by the sabkha compaction brine formed the basis for reservoir development; 3） meteoric water karstification in the paleo-epidiagenetic stage expanded both the distribution and the size of the reservoirs,and improved the reservoir quality; 4） deep-burial dissolution and tectonic fracturing in the reburial diagenetic stage further improved reservoir porosity and permeability.

关键词： Dolomite reservoir geochemistry diagenetic fluids Huanglong Formation Carboniferous Sichuan Basin

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Rational design of diamond through microstructure engineering:From synthesis to applications

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Carbon Energy 2024年第7期6卷 94-122页

作者： Yalun Ku Wentao Huang Xing li li Wan Kuikui Zhang longbin Yan Ying Guo Shaobo Cheng Chongxin Shan Henan Key Laboratory of Diamond Optoelectronic Materials and Devices Key Laboratory of Material PhysicsMinistry of EducationSchool of Physics and Laboratory of Zhongyuan LightZhengzhou UniversityZhengzhouChina Institute of Quantum Materials and Physics Henan Academy of SciencesZhengzhouChina

Diamond possesses excellent thermal conductivity and tunable ***,the high-pressure,high-temperature,and chemical vapor deposition methods are the most promising strategies for the commercial-scale production of synthetic *** diamond has been extensively employed in jewelry and cutting/grinding tasks,the realization of its high-end applications through microstructure engineering has long been ***,we discuss the microstructures encountered in diamond and further concentrate on cutting-edge investigations utilizing electron microscopy techniques to illuminate the transition mechanism between graphite and diamond during the synthesis and device *** impacts of distinct microstructures on the electrical applications of diamond,especially the photoelectrical,electrical,and thermal properties,are *** recently reported elastic and plastic deformations revealed through in situ microscopy techniques are also ***,the limitations,perspectives,and corresponding solutions are proposed.

关键词： diamond in situ microscopy microstructures phase transition structure-property relationship

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Revealing the atomic mechanism of diamond–iron interfacial reaction

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Carbon Energy 2024年第3期6卷 255-263页

作者： Yalun Ku Kun Xu longbin Yan Kuikui Zhang Dongsheng Song Xing li Shunfang li Shaobo Cheng Chongxin Shan Henan Key Laboratory of Diamond Optoelectronic Materials and Devices Key Laboratory of Material PhysicsMinistry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhouChina Department of Mechanical Engineering Stanford UniversityStanfordCaliforniaUSA Information Materials and Intelligent Sensing Laboratory of Anhui Province Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of EducationInstitutes of Physical Science and Information TechnologyAnhui UniversityHefeiChina Institute of Quantum Materials and Physics Henan Academy of SciencesZhengzhouChina

Diamond,with ultrahigh hardness,high wear resistance,high thermal conductivity,and so forth,has attracted worldwide ***,researchers found emergent reactions at the interfaces between diamond and ferrous materials,which significantly affects the performance of diamond-based ***,combing experiments and theoretical calculations,taking diamond–iron(Fe)interface as a prototype,the counter-diffusion mechanism of Fe/carbon atoms has been ***,it is identified that Fe and diamond first form a coherent interface,and then Fe atoms diffuse into diamond and prefer the carbon vacancies ***,the relaxed carbon atoms diffuse into the Fe lattice,forming Fe_(3)***,graphite is observed at the Fe_(3)C surface when Fe_(3)C is over-saturated by carbon *** present findings are expected to offer new insights into the atomic mechanism for diamondferrous material's interfacial reactions,benefiting diamond-based device applications.

关键词： coherent interface counter-diffusion diamond iron phase transition

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DTBVis:An interactive visual comparison system for digital twin brain and human brain

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Visual Informatics 2023年第2期7卷 41-53页

作者： Yuxiao li Xinhong li Siqi Shen longbin Zeng Richen liu Qibao Zheng Jianfeng Feng Siming Chena School of Data Science Fudan UniversityChina Institute of Science and Technology for Brain-Inspired Intellignece Fudan UniversityChina School of Computer and Electronic Information Nanjing Normal UniversityChina

The digital twin brain(DTB)computing model from brain-inspired computing research is an emerging artificial intelligence technique,which is realized by a computational modeling approach of hardware and *** can achieve various cognitive abilities and their synergistic mechanisms in a manner similar to the human *** that the task of the DTB is to simulate the functions of the human brain,comparing the similarities and differences between the two is ***,the visualization study of the DTB is still ***,the complexity of the datasets(multilevel spatiotemporal granularity and different types of comparison tasks)presents new challenges to the analysis and exploration of ***,in this study,we proposed DTBVis,a visual analytics system that supports comparison tasks for the *** supports iterative explorations from different levels and at different *** with automatic similarity recommendation,and high-dimensional exploration,DTBVis can assist experts in understanding the similarities and differences between the DTB and the human brain,thus helping them adjust their model and enhance its *** highest level of DTBVis shows an overview of the datasets from the brain,which is used for comparison and exploration of the function and structure of the DTB and the human *** medium level is used for the comparison and exploration of a designated brain *** low level can analyze a designated brain *** worked closely with experts of brain science and held regular seminars with *** from the experts indicates that our approach helps them conduct comparative studies of the DTB and human brain and make modeling adjustments of the DTB through intuitive visual comparisons and interactive explorations.

关键词： Brain Digital twin brain Visual analytics Comparative analysis

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Biogenic silica concentration as a marine primary productivity proxy in the Holsteinsborg Dyb, West Greenland, during the last millennium

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Acta Oceanologica Sinica 2020年第9期39卷 78-85页

作者： longbin Sha Dongling li Yanguang liu Bin Wu Yanni Wu Karen Luise Knudsen Zhongqiao li Hao Xu Department of Geography and Spatial Information Techniques Ningbo UniversityNingbo 315211China Laboratory for Marine Geology Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China State Key Laboratory of Estuarine and Coastal Research East China Normal UniversityShanghai 200062China Key Laboratory of Marine Sedimentology and Environmental Geology First Institute of OceanographyMinistry of Natural ResourcesQingdao 266061China Key Laboratory of Marine Ecosystem and Biogeochemistry Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China Centre for Past Climate Studies and Arctic Research Centre Department of GeoscienceAarhus UniversityAarhus C DK-8000Denmark

We analyzed the biogenic silica(BSi)content and produced a diatom-based summer sea-surface temperature(SST)reconstruction for sediment core GC4 from the Holsteinsborg Dyb,West *** aim was to reconstruct marine productivity and climatic fluctuations during the last *** BSi content and diatom abundance suggest relatively high marine productively during the interval of AD 1000–1400,corresponding in time to the Medieval Warm Period(MWP).The summer SST reconstruction indicates relatively warm conditions during AD 900–1100,followed by cooling after AD *** extended cooling period during AD 1400–1900 is characterized by prolonged low in reconstructed SST and high sea-ice *** BSi values fluctuated during this period,suggesting varying marine productivity during the little Ice Age(liA).There is no significant correlation between the BSi content and SST during the last millennium,suggesting that the summer SST has little influence on marine productively in the Holsteinsborg Dyb.A good correspondence between the BSi content and the element Ti counts in core GC4 suggests that silicate-rich meltwater from the Greenland ice sheet was likely responsible for changes in marine productively in the Holsteinsborg Dyb.

关键词： biogenic silica marine productivity sea-surface temperature sea-ice concentration

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全自动人体健康秤设计

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山西电子技术 2021年第4期 27-30页

作者：牛子健李龙彬唐川陈初阳卢文涛马华红河南科技大学信息工程学院河南洛阳471023

随着社会、科技的演进,人们的衣食住行正变得越来越便捷,生活质量日益提升,与此同时人们也更加地关注个人的身体健康。本项目设计的全自动人体健康秤以STM32单片机作为系统控制模块,由压力传感器、超声波测距模块、心率血氧检测模块、... 详细信息

随着社会、科技的演进,人们的衣食住行正变得越来越便捷,生活质量日益提升,与此同时人们也更加地关注个人的身体健康。本项目设计的全自动人体健康秤以STM32单片机作为系统控制模块,由压力传感器、超声波测距模块、心率血氧检测模块、语音模块和无线通讯模块组合而成,能够实现人体身高、体重、心率血氧的测量,并通过语音播报的方式,给被测人健康提示。此系统能够帮助人们更精确地测量身体相关的各项数据,智能化的设计不仅能够优化每位用户的体验,同时也便于人们制定个性化的塑身计划以改善自己的身体健康。

关键词：全自动健康秤超声波心率血氧检测单片机

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内燃机车柴油机水腔密封面裂纹修复探讨

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华东交通大学学报 2014年第3期31卷 120-123页

作者：黄志明李龙斌宋平凡曾世辉卢志刚新余钢铁集团有限公司江西新余338001

针对内燃机车用Z12V190BJ柴油机水腔密封面裂纹故障,分析讨论了柴油机水腔密封面出现点蚀及裂纹的原因,提出了对点蚀及裂纹堆焊后镗销精加工的解决方案,并根据镗床工作原理设计出了镗削装置,制定了水腔密封面修复工艺,修复后的柴油机满... 详细信息

针对内燃机车用Z12V190BJ柴油机水腔密封面裂纹故障,分析讨论了柴油机水腔密封面出现点蚀及裂纹的原因,提出了对点蚀及裂纹堆焊后镗销精加工的解决方案,并根据镗床工作原理设计出了镗削装置,制定了水腔密封面修复工艺,修复后的柴油机满足使用要求。

关键词：内燃机车柴油机水腔裂纹修复镗削装置镗削工艺

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Flexible sensors based on assembled carbon nanotubes

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Aggregate 2021年第6期2卷 82-98页

作者： Sisi He Yang Hong Meng liao Yingchun li longbin Qiu Huisheng Peng Shenzhen Key Laboratory of Flexible Printed Electronics Technology School of ScienceHarbin Institute of Technology(Shenzhen)ShenzhenChina State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Scienceand Laboratory of Advanced MaterialsFudan UniversityShanghaiChina Department of Mechanical and Energy Engineering Southern University of Science and TechnologyShenzhenChina

Flexible sensors have attracted significant attention as they could be directly attached to/implanted into the body or incorporated into textiles to monitor human activities and give feedbacks for healthcare.A typical fabrication method is the direct use of intrinsically flexible active materials such as carbon nanotubes(CNTs).CNTs are generally assembled into aligned structures to extend their remarkable chemical,mechanical,and electrical properties to macroscopic scale to afford high sensing *** this review,we present the recent advance of CNT assemblies as electrodes or functional materials for flexible *** realizations of aligned CNTs are firstly investigated.A variety of flexible sensors based on the aligned CNTs are then carefully explored,with an emphasis on understanding the working mechanism for their high sensing *** main attention is later paid to comparing two main categories of flexible sensors with fiber and film *** remaining challenges are finally highlighted to offer some insights for future study.

关键词： carbon nanotube flexible sensor

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调控CD147基因表达的MicroRNA分子鉴定及其抗膀胱癌转移研究

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中国现代医生 2016年第29期54卷 1-3,12页

作者：徐刚薛义军邹晓峰李龙滨袁源湖肖日海邹毓华赣南医学院第一附属医院泌尿外科江西赣州341000 江西省赣州市南康区第一人民医院泌尿外科江西赣州341000

目的探讨调控CD147基因表达的Micro RNA对膀胱癌的增殖、迁移和浸润的关联性。方法选取自2015年1月~2016年5月在我院接受治疗的膀胱癌患者50例,分别取膀胱癌组织以及癌旁组织采用免疫组化进行CD147阳性检测,构建CD147 si RNA重组腺病... 详细信息

目的探讨调控CD147基因表达的Micro RNA对膀胱癌的增殖、迁移和浸润的关联性。方法选取自2015年1月~2016年5月在我院接受治疗的膀胱癌患者50例,分别取膀胱癌组织以及癌旁组织采用免疫组化进行CD147阳性检测,构建CD147 si RNA重组腺病毒（Ad-CD147 si RNA）载体转染膀胱癌细胞,将CD147阳性表达的膀胱癌组织随机分为Ad-CD147 si RNA转染的干扰组,腺病毒颗粒转染的阴性对照以及未加处理的对照组,采用MTT检测肿瘤细胞增殖能力、采用划痕实验检测肿瘤细胞迁移能力、采用明胶酶谱实验检测MMP-2和MMP-9含量、采用Transwell小室法检测肿瘤细胞浸润能力。结果 CD147在膀胱癌组中阳性率90.00%（45/50）显著高于癌旁组织12.00%（6/50）,差异有统计学意义（P〈0.05）。不同性别和不同年龄间CD147阳性表达比较,差异无统计学意义（P〉0.05）;而不同的TNM分期及肿瘤细胞分化程度与CD147阳性表达比较,差异有统计学意义（P〈0.05）。空白组及对照组的膀胱癌细胞迁移距离、侵入基底胶数量、MMP-2以及MMP-9含量明显高于干扰组,体外膀胱癌细胞在490 nm处吸收值显著低于干扰组,差异有统计学意义（P〈0.05）。结论 CD147基因所表达的Micro RNA能够通过促进MMP-2和MMP-9的分泌而加速膀胱癌组织的血供形成,加速增殖、迁移以及浸润。

关键词： CD147基因微小RNA 小RNA 肿瘤转移膀胱癌

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