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浅水三角洲相控储层预测研究——以松辽盆地中央坳陷大安地区泉四段为例

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中国矿业大学学报 2024年第3期53卷 564-584页

作者：王于恒于福生李忠诚王晓坤熊连桥齐伊梨冯桢鸣中国石油大学(北京)地球科学学院北京102249 中国石油大学(北京)油气资源与探测国家重点实验室北京102249 中国石油吉林油田分公司勘探开发研究院吉林松原138001 中国石油华北油田公司勘探开发研究院河北任丘062500 中海油研究总院有限责任公司北京100028 中海油有限公司上海分公司上海200335

三角洲前缘相变迅速,沉积演化复杂,储层分布多变,利用常规地震切片及钻井分析等传统方法无法有效分析其沉积演化规律和储层分布.为提升浅水湖盆三角洲储层预测精度与沉积模式刻画准确度,本文以三维地震反演为基础,综合钻井信息,通过密... 详细信息

三角洲前缘相变迅速,沉积演化复杂,储层分布多变,利用常规地震切片及钻井分析等传统方法无法有效分析其沉积演化规律和储层分布.为提升浅水湖盆三角洲储层预测精度与沉积模式刻画准确度,本文以三维地震反演为基础,综合钻井信息,通过密井网解剖和地层切片,重建大安地区白垩系泉四段沉积演化过程,定量表征储层分布范围.研究表明:构造稳定、地形平缓及湖平面不断波动的沉积背景下形成浅水三角洲,该三角洲经历由早期粗粒厚砂的平原至晚期细粒薄砂的前缘沉积演化过程,内部还有多期次级水体进退;沉积物主要为河道、河口坝及溢岸沉积的复合型砂坝,其宽厚比为35~225,彼此间可构成垂向孤立、叠加式、侧向叠加和替代式.随湖平面升高与水体能量减弱,砂坝推进距离减少,弯曲度增加,两侧溢岸沉积逐渐消失,倾向于在末端逐渐分叉形成指状形态;强水动力下则更易形成低曲度的枝状形态,倾向于在末端形成交织网状形态.沉积相控与属性约束可完成无井区或稀井区储层定量预测,砂厚预测准确率可达89.93%,为储层预测提供新思路与新方法.

关键词：浅水三角洲沉积模式波形指示反演沉积相控储层分布松辽盆地中央坳陷区

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长波红外制冷杜瓦组件杂散光分析

中国激光 2024年第8期51卷 223-233页

作者：朱海勇陈俊林曾智江徐勤飞王小坤李亚冉李雪中国科学院上海技术物理研究所传感技术联合国家重点实验室上海200083

杂散光抑制是保证红外遥感数据定量化反演精度和图像质量的前提。为了抑制系统杂散光,利用点源透过率(PST)与杂散光系数(VGI)的函数关系计算了VGI,并分别用VGI和杂散比(NSR)作为指标对系统外部杂散光和系统背景辐射的抑制方法进行了研... 详细信息

杂散光抑制是保证红外遥感数据定量化反演精度和图像质量的前提。为了抑制系统杂散光,利用点源透过率(PST)与杂散光系数(VGI)的函数关系计算了VGI,并分别用VGI和杂散比(NSR)作为指标对系统外部杂散光和系统背景辐射的抑制方法进行了研究。结果表明:采用冷光学设计能有效抑制系统背景辐射,此时系统工作的三个波段NSR从4.5以上降低至0.35以下。制冷机制冷是冷光学设计和探测器工作的基础,研究了杜瓦窗口和冷屏设计对VGI、NSR和制冷机功耗的影响,进而优化了窗口和冷屏的设计参数。拟合实验数据明确了杜瓦漏热与制冷机功耗的函数关系,提出了一种低制冷功耗和高杂散光抑制的冷屏设计,此时杜瓦漏热为1.7 w,制冷机功耗为103.72 w,系统的VGI从1.95%降低至1.92%,窗口的NSR下降了60%,满足项目要求。研究结果解决了低温光学设计、制冷机功耗和杂散光抑制等一系列问题,组件通过力学试验,已成功运用于某项目用光谱成像仪中。

关键词：光学设计杂散光杜瓦窗口冷光学设计杂散光系数制冷功耗

超声辅助低共熔溶剂提取油橄榄果渣中羟基酪醇的工艺优化研究

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东北农业科学 2024年第2期49卷 102-107页

作者：刘月含吕明俊姜晓坤吉林农业科技学院食品科学与营养工程学院吉林吉林132101

本试验通过超声波辅助低共熔溶剂提取油橄榄果渣中的羟基酪醇,考察了超声提取温度、超声提取时间、超声功率、低共熔溶剂含水率和低共熔溶剂摩尔比对油橄榄果渣中羟基酪醇提取率的影响。结果表明,超声提取温度40℃、超声提取时间30 min... 详细信息

本试验通过超声波辅助低共熔溶剂提取油橄榄果渣中的羟基酪醇,考察了超声提取温度、超声提取时间、超声功率、低共熔溶剂含水率和低共熔溶剂摩尔比对油橄榄果渣中羟基酪醇提取率的影响。结果表明,超声提取温度40℃、超声提取时间30 min、超声功率300 w、低共熔溶剂含水率20%、低共熔溶剂摩尔比1∶1为最佳提取工艺条件。并通过响应面分析对提取工艺的条件进行了优化,最佳提取率为19.76%。

关键词：油橄榄果渣羟基酪醇低共熔溶剂超声辅助响应面软件优化

Compliance-based testing method for fatigue crack propagation rates of mixed-modeⅠ-Ⅱcracks

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Science China(Technological Sciences) 2021年第12期64卷 2577-2585页

作者： QI Shuang XIAng wenXin CAI LiXun LIU xiaokun SHAO ChunBing NIng FangMao SHI JinHua YU weiwei Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province School of Mechanics and EngineeringSouthwest Jiaotong UniversityChengdu 610031China Taishan Nuclear Power Joint Venture Co. Ltd.Jiangmen 529200China Power Plant Life Management Research Center Suzhou Nuclear Power Research InstituteSuzhou 215004China

Mixed-mode I-II crack-based fatigue crack propagation(FCPⅠ-Ⅱ)usually occurs in engineering structures;however,no theoretical formula or effective compliance test methods have been established for FCPI-IIto *** mixed-mode I-II flawed components,based on the principle of mean-value energy equivalence,we propose a theoretical method to describe the relationship between material elastic parameters,geometrical dimensions,load(or displacement),and *** on the maximum circumferential stress criterion,we propose a uniform compliance model for compact tensile shear(CTS)specimens with horizontal cracks deflecting and propagating(flat-folding propagation)under different loading angles,geometries,and *** with an innovative design of the fixture of CTS specimens used for FCPI-IItests,we develop a new compliancebased testing method for FCPⅠ-Ⅱ.For the 30Cr2Ni4MoV rotor steel,the FCP rates of modeⅠ,modeⅡ,and mixed-modeⅠ-Ⅱcracks were obtained via FCP tests using compact tension,Arcan,and CTS specimens,*** obtained da/d N versusΔJ curves of the FCP rates are *** loading angleαand dimensionless initial crack length a0/w demonstrated negligible effects on the FCP ***,the FCP rates of mode I crack can be used to predict the residual life of structural crack propagation.

关键词： finite element analysis mixed-modeⅠ-Ⅱcrack fatigue crack propagation rate energy equivalence principle testing method

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瓯柑果皮类黄酮提取纯化及其功能活性评价

食品科技 2024年第8期49卷 228-237页

作者：周红艳陆胜民李彥坡郑美瑜欧阳小琨浙江海洋大学食品与药学学院浙江舟山316022 浙江省农业科学院食品科学研究所浙江省果蔬保鲜与加工技术研究重点实验室农业农村部果品产后处理重点实验室浙江杭州310021 温州市农业科学研究院食品科学研究所浙江温州325000

为提高瓯柑果皮类黄酮提取物中类黄酮的含量及评估其功能活性,该研究优化冻干瓯柑果皮类黄酮的超声辅助乙醇法提取和大孔树脂纯化工艺,并评价其主要功能活性。结果显示,在40%乙醇、液料比30:1(mL/g)、超声功率400 w、60℃条件下提取60 ... 详细信息

为提高瓯柑果皮类黄酮提取物中类黄酮的含量及评估其功能活性,该研究优化冻干瓯柑果皮类黄酮的超声辅助乙醇法提取和大孔树脂纯化工艺,并评价其主要功能活性。结果显示,在40%乙醇、液料比30:1(mL/g)、超声功率400 w、60℃条件下提取60 min得到的粗提物中总黄酮含量最高,为(118.94±2.29)mg/g;AB-8大孔树脂最佳纯化工艺为上样浓度3.50 mg/mL、上样流速0.75 mL/min、乙醇洗脱溶剂浓度60%和洗脱流速0.75 mL/min,纯化后提取物中类黄酮的纯度提高约3.07倍;类黄酮提取物中主要含有新橙皮苷、川陈皮素、橙皮苷、橘皮素、枸橘苷、柚皮苷和5-去甲川陈皮素,纯化后各主要类黄酮化合物含量均有所提高且总量为粗提物的2.63倍;纯化后的类黄酮提取物在2,2-联氨-双-3-乙基苯并噻唑啉-6-磺酸(2,2’-Azino-bis(3-ethylbenzothiazoline-6-sulfonic acid),ABTS)阳离子自由基、1,1-二苯基-2-三硝基苯肼(1,1-Diphenyl-2-picrylhydrazyl,DPPH)自由基和羟自由基清除和铁还原能力,以及对α-葡萄糖苷酶的抑制作用方面均表现出更高的活性。研究表明瓯柑果皮类黄酮提取物有较好的抗氧化和降糖活性,且纯化后的能力更强。

关键词：瓯柑果皮类黄酮提取纯化抗氧化活性 α-葡萄糖苷酶抑制活性

Development of high-resolution chloroplast markers for intraspecific phylogeographic studies of Phaeocystis globosa

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Journal of Oceanology and Limnology 2021年第2期39卷 508-524页

作者： Qingchun ZHAng Zhuang NIU Jinxiu w.ng Chao LIU Fanzhou KOng xiaokun HU Jiayu ZHAO Rencheng YU CAS Key Laboratory of Marine Ecology and Environmental Sciences Institute of OceanologyChinese Academy of SciencesQingdao 266071China Laboratory for Marine Ecology and Environmental Sciences Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China Center of Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China University of Chinese Academy of Sciences Beijing 100049China

Phaeocystis globosa is an important harmful algal bloom causative species distributing widely in temperate and tropical coastal waters in the *** morphological,physiological,and biochemical characteristics are different among geographic strains,which can not be distinguished with nuclear ribosomal DNA markers at ***,the genetic distance and phylogeographic relationships of nuclear 28S rDNA D1–D2 and ITS regions,and three chloroplast intergenic spacers(petN-trnS1,trnM1-psbA,and rbcS-rpl27)were analyzed and compared among 13 strains of *** isolated from the Pacific Ocean and Atlantic Ocean in this *** addition,the nucleotide polymorphisms of 28S rDNA D1–D2,ITS,and rbcS-rpl27 regions were evaluated in two *** *** various levels of nucleotide polymorphism were in the nuclear 28S rDNA D1–D2 region and ITS region,but no polymorphism was in the chloroplast rbcS-rpl27 intergenic spacer.A reasonable intraspecific phylogeographic relationship was presented by rbcS-rpl27 intergenic spacer,which had the strongest distinction to geographic strains compared to those of 28S rDNA D1–D2 and ITS *** the phylogenetic tree of rbcS-rpl27 intergenic spacer,the two strains from the North Sea of the Atlantic Ocean were divided firstly from the species of ***,and then formed an independent clade,while the other Atlantic strains and all of Pacific strains joined up to build the other *** was implied that at least two genetically distant populations of *** existed in the Atlantic coastal *** study provided a high-resolution chloroplast marker to analyze intraspecific phylogeographic populations of ***,and preliminarily clarified the genetic relationships of the Pacific and Atlantic strains of ***.

关键词： Phaeocystis globosa chloroplast DNA marker phylogeny

Low-Dimensional Halide Perovskites and Their Advanced Optoelectronic Applications

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Nano-Micro Letters 2017年第3期9卷 118-143页

作者： Jian Zhang xiaokun Yang Hui Deng Keke Qiao Umar Farooq Muhammad Ishaq Fei Yi Huan Liu Jiang Tang Haisheng Song wuhan National Laboratory for Optoelectronics(wNLO) Huazhong University of Science and Technology(HUST)Wuhan 430074HubeiPeople’s Republic of China School of Optical and Electronic Information Huazhong University of Science and Technology(HUST)Wuhan 430074HubeiPeople’s Republic of China

Metal halide perovskites are crystalline materials originally developed out of scientific curiosity. They have shown great potential as active materials in optoelectronic applications. In the last 6 years, their certified photovoltaic efficiencies have reached 22.1%. Compared to bulk halide perovskites, low-dimensional ones exhibited novel physical properties. The photoluminescence quantum yields of perovskite quantum dots are close to 100%. The external quantum efficiencies and current efficiencies of perovskite quantum dot light-emitting diodes have reached 8% and 43 cd A^(-1),respectively, and their nanowire lasers show ultralow-threshold room-temperature lasing with emission tunability and ease of synthesis. Perovskite nanowire photodetectors reached a responsivity of 10 A w^(-1)and a specific normalized detectivity of the order of 10^(12 )Jones. Different from most reported reviews focusing on photovoltaic applications, we summarize the rapid progress in the study of low-dimensional perovskite materials, as well as their promising applications in optoelectronic devices. In particular, we review the wide tunability of fabrication methods and the state-of-the-art research outputs of low-dimensional perovskite optoelectronic devices. Finally, the anticipated challenges and potential for this exciting research are proposed.

关键词： Metal halide perovskites Low-dimensional effect Synthesis Optoelectronic devices Versatility

Rapid Screening of Nine Illicit Drugs in Human Blood and Urine by Direct Analysis in Real‑Time Mass Spectrometry

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Journal of Forensic Science and Medicine 2019年第3期5卷 136-140页

作者： Ying Zhang wenfang Zhang Guobin Xin Li Liu xiaokun Duan Charles Liu Forensic Science Service of Beijing Public Security Bureau Key Laboratory of Forensic ToxicologyMinistry of Public SecurityBeijingChina ASPEC Technologies Limited BeijingChina

we aimed to establish for the rapid detection of morphine,O6‑monoacetylmorphine,heroin,codeine,cocaine,methamphetamine,ketamine,methadone,and dolantin in human blood and urine by direct analysis in real‑time coupled with tandem mass spectrometry(DART‑MS/MS).These samples were extracted by acetonitrile‑methanol(V/V=4:1),using DART 12 Dip‑it automatic sampling *** were injected at 400℃,and analyzed by positive ion and multiple reaction monitoring *** detection limits of morphine,O6‑Monoacetylmorphine,heroin,codeine,cocaine,methamphetamine,ketamine,methadone,and dolantin were 100,50,50,100,20,20,10,1,and 0.01 ng/mL,*** practical cases contained methamphetamine,codeine,cocaine,and O6‑monoacetylmorphine were detected accurately and *** method has the advantages of high sensitivity and good *** sample processing is simple and can be analyzed in a short *** method is suitable for the analysis of morphine,O6‑monoacetylmorphine,heroin,codeine,cocaine,methamphetamine,ketamine,methadone,and dolantin in some practical cases.

关键词： Direct analysis in real‑time mass spectrometry forensic toxicological analysis illicit drugs rapid screening

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焦点标记“来”

世界汉语教学 2006年第2期20卷 20-30页

作者：鲁晓琨日本文京学院大学

本文所要探讨的“来”是“我来介绍一下”和“我们要根据具体情况来判断”中的“来”。笔者从信息结构的角度，应用焦点理论对上述两句中的“来”作出了统一的解释，证明“来”是句子的焦点标记。并在此基础上通过焦点标记“是”和“来... 详细信息

本文所要探讨的“来”是“我来介绍一下”和“我们要根据具体情况来判断”中的“来”。笔者从信息结构的角度，应用焦点理论对上述两句中的“来”作出了统一的解释，证明“来”是句子的焦点标记。并在此基础上通过焦点标记“是”和“来”的对比，进一步揭示了“是”和“来”的语用意义。

关键词：信息焦点对比焦点焦点标记 “来” 语用意义