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Geological characteristics of unconventional tight oil reservoir (10^(9) t): A case study of Upper Cretaceous Qingshankou Formation, northern Songliao Basin, NE China

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China Geology 2024年第1期7卷 51-62页

作者： Li-zhi Shi Zhuo-zhuo Wang Zhan-tao Xing shan Meng Shuai Guo Si-miao wu Li-yan Luo Chinese Academy of Geological Sciences Beijing 100037China Beijing Institute of Engineering Geology Beijing 100048China

The Daqing exploration area in the northern Songliao Basin has great potential for unconventional oil and gas resources,among which the total resources of tight oil alone exceed 109 t and is regarded as an important resource base of Daqing *** years of exploration in the Qijia area,Songliao Basin,NE China,tight oil has been found in the Upper Cretaceous Qingshankou *** work out tight oil’s geological characteristics,taking tight oil in Gaotaizi oil layers of the Upper Cretaceous Qingshankou Formation in northern Songliao Basin as an example,this paper systematically analyzed the geological characteristics of unconventional tight oil in Gao3 and Gao4 layers of the Qijia area,based on the data of the geological survey,well drilling journey,well logging,and *** is that three sets of hydrocarbon source rocks(K2qn1,K2qn2+3,and K2n1)develop in the examined area,and exhibit excellent type I and II kerogens,high organic matter abundance,and moderate *** reservoir is generally composed of thin-bedded mudstone,siltstone,and sandstone,and presents poor porosity(average 8.5 vol.%)and air permeability(average 4 mD).The main reservoir space primarily includes intergranular pores,secondary soluble pores,and intergranular soluble *** types of orifice throats were identified,namely fine throat,extra-fine throat,and micro-fine *** siltstone is generally oil-bearing,the reservoirs with slime and calcium become worse oil-bearing,and the mudstone has no obvious oil-bearing *** brittleness indices of the sandstone in the tight oil reservoir range from 40%to 60%,and those of the mudstone range from 40%to 45%,indicating a better brittleness of the tight oil *** on the study of typical core hole data,this paper gives a comprehensive evaluation of the properties of the tight oil and establishes a tight oil single well composite bar chart as well as the initial evaluation system with the core of properties in the tigh

关键词： Unconventional oil and gas Tight oil Thin-bedded mudstone-siltstone-sandstone reservoir Qijia area Qingshankou Formation Oil and gas exploration engineering Songliao Basin Daqing oilfield

外贸冲击对工业行业增长传导效应研究——基于行业用电量的VAR分析

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价格月刊 2022年第1期 72-77页

作者：王向吴国维吴姗姗国网能源研究院有限公司北京102209 北京大学经济学院北京100871

当前,贸易冲击依然是中国宏观经济波动的重要来源。利用全国工业分行业用电量,基于向量自回归模型,分析了进出口贸易冲击对各行业的影响。研究发现,贸易冲击只对一般工业行业产生显著性影响;劳动密集型行业对外贸冲击的响应快于重工业;... 详细信息

当前,贸易冲击依然是中国宏观经济波动的重要来源。利用全国工业分行业用电量,基于向量自回归模型,分析了进出口贸易冲击对各行业的影响。研究发现,贸易冲击只对一般工业行业产生显著性影响;劳动密集型行业对外贸冲击的响应快于重工业;出口冲击对行业普遍产生正向影响,进口冲击会先产生负向、后出现正向影响;出口冲击的传导效应主要从上游到下游、进口冲击的传导效应主要从下游到上游。

关键词：外贸冲击工业传导效应用电量 VAR

Eccrine porocarcinoma in the tempus of an elderly woman:A case report

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World Journal of Clinical Cases 2024年第8期12卷 1523-1529页

作者： Zhi-Wei wu Wen-Jie Zhu shan Huang Qi Tan Cong You Dian-Gui Hu Long-Nian Li Department of Dermatology First Affiliated Hospital of Gannan Medical UniversityGanzhou 341000Jiangxi ProvinceChina Department of Laser and Cosmetic Dermatology Ganzhou Dermatology HospitalGanzhou 341000Jiangxi ProvinceChina Department of Dermatology Tongxiang Dermatology HospitalJiaxing 314000Zhejiang ProvinceChina Department of Infectious Diseases The Fifth people’s Hospital of GanzhouGanzhou 341000Jiangxi ProvinceChina

BACKGROUND Eccrine porocarcinoma(EPC)is a rare skin tumor that mainly affects the elderly *** often present with slow growth and a good *** are usually distinguished from other skin tumors using histopathology and ***,surgical management alone may be inadequate if the tumor has ***,currently,surgical resection is the most commonly used treatment *** SUMMARY A seventy-four-year-old woman presented with a slow-growing nodule in her left temporal area,with no obvious itching or pain,for more than four *** examination showed small columnar and short spindle-shaped cells;thus,basal cell carcinoma was ***,immunohistochemical analysis revealed the expression of cytokeratin 5/6,p63 protein,p16 protein,and Ki-67 antigen(40%),and EPC was taken into *** skin biopsy was repeated,and hematoxylin and eosin staining revealed ductal differentiation in some ***,the patient was diagnosed with EPC,and Mohs micrographic surgery was *** adapted follow-up visits in a year and not found any recurrence of *** This case report emphasizes the diagnosis and differentiation of EPC.

关键词： Eccrine porocarcinoma Sweat gland carcinoma Histopathology Immunohistochemistry Prognosis Case report

PDGF-BB诱导肺动脉平滑肌细胞表型转换时细胞骨架的变化

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四川大学学报（医学版） 2018年第4期49卷 524-529页

作者：吴珊珊谢亮刘翰旻刘斌西南医科大学附属医院儿科泸州646000 四川大学华西第二医院西部妇幼医学研究院血管重构与发育缺陷实验室成都610041

目的研究血小板衍生生长因子(PDGF-BB)诱导大鼠肺动脉平滑肌细胞(PASMCs)表型转换时细胞骨架构象的改变,探讨PASMCs表型转换的机制。方法原代培养并鉴定SD大鼠PASMCs,将PASMCs分为对照组(细胞不加诱导剂培养24h)、实验组(细胞用PDGF-BB ... 详细信息

目的研究血小板衍生生长因子(PDGF-BB)诱导大鼠肺动脉平滑肌细胞(PASMCs)表型转换时细胞骨架构象的改变,探讨PASMCs表型转换的机制。方法原代培养并鉴定SD大鼠PASMCs,将PASMCs分为对照组(细胞不加诱导剂培养24h)、实验组(细胞用PDGF-BB 10ng/mL诱导培养24h);实时荧光定量PCR(RTqPCR)及Western blot检测细胞表型转化标志基因[α-肌动蛋白(α-SMA)、平滑肌22α蛋白(SM22α)]mRNA及相关蛋白的表达;免疫荧光法检测细胞骨架微丝F-actin及微管α-tubulin、β-tubulin的构象;CCK-8法检测细胞增殖能力及划痕实验观察细胞迁移能力。结果与对照组相比,PDGF-BB下调α-SMA及SM22α表达水平;细胞骨架荧光强度明显减弱,F-actin排列紊乱、边缘不规则、呈毛刺样,α-tubulin、β-tubulin形态模糊,表现为共定位;明显增强PASMCs增殖与迁移能力。结论 PDGF-BB可能通过影响细胞骨架构象诱导PASMCs表型转换,进而改变细胞增殖及迁移能力。

关键词：肺动脉平滑肌细胞表型转换细胞骨架

初访客与回头客的中国旅游感知形象对比——以旅华欧美游客为例

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经济地理 2014年第7期34卷 157-164页

作者：吴剑吴晋峰吴姗姗王云弟陕西师范大学旅游与环境学院中国陕西西安710062

采用因子分析法和内容分析法对初访客与回头客从感知形象因子评价、整体形象感知、旅游动机选择、满意度(包括重游意愿、推荐意愿)、"出行前"和"旅游中"遇到的限制因素等五大方面进行对比。研究表明:1初访客和回头客对感知印象因子评价... 详细信息

采用因子分析法和内容分析法对初访客与回头客从感知形象因子评价、整体形象感知、旅游动机选择、满意度(包括重游意愿、推荐意愿)、"出行前"和"旅游中"遇到的限制因素等五大方面进行对比。研究表明:1初访客和回头客对感知印象因子评价一致但初访客的评价高于回头客的评价。2回头客对中国整体旅游形象认识比初访客深刻。3初访客和回头客的旅游动机有一定的差异。4回头客的重游意愿高于初访客,但推荐意愿却低于初访客。5初访客和回头客来华旅游限制因素总体上具有很高的一致性,但具体限制因素在初访客和回头客"出行前"和"旅游中"又有着不同的影响。

关键词：初访客回头客旅游感知形象旅华欧美游客中国

Deep brain implantable microelectrode arrays for detection and functional localization of the subthalamic nucleus in rats with Parkinson’s disease

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Bio-Design and Manufacturing 2024年第4期7卷 439-452页

作者： Luyi Jing Zhaojie Xu Penghui Fan Botao Lu Fan Mo Ruilin Hu Wei Xu Jin shan Qianli Jia Yuxin Zhu Yiming Duan Mixia Wang Yirong wu Xinxia Cai State Key Laboratory of Transducer Technology Aerospace Information Research InstituteChinese Academy of SciencesBeijing 100190China School of Electronic Electrical and Communication EngineeringUniversity of Chinese Academy of SciencesBeijing 100049China

The subthalamic nucleus(STN)is considered the best target for deep brain stimulation treatments of Parkinson’s disease(PD).It is difficult to localize the STN due to its small size and deep *** microelectrode arrays(MEAs)can rapidly and precisely locate the STN,which is important for precise *** this paper,16-channel MEAs modified with multiwalled carbon nanotube/poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate)(MWCNT/PEDOT:PSS)nanocomposites were designed and fabricated,and the accurate and rapid identification of the STN in PD rats was performed using detection sites distributed at different brain *** results showed that nuclei in 6-hydroxydopamine hydrobromide(6-OHDA)-lesioned brains discharged more intensely than those in unlesioned *** addition,the MEA simultaneously acquired neural signals from both the STN and the upper or lower boundary nuclei of the ***,higher values of spike firing rate,spike amplitude,local field potential(LFP)power,and beta oscillations were detected in the STN of the 6-OHDA-lesioned brain,and may therefore be biomarkers of STN *** with the STNs of unlesioned brains,the power spectral density of spikes and LFPs synchronously decreased in the delta band and increased in the beta band of 6-OHDA-lesioned *** may be a cause of sleep and motor disorders associated with ***,this work describes a new cellular-level localization and detection method and provides a tool for future studies of deep brain nuclei.

关键词： Functional localization Implantable microelectrode arrays Parkinson’s disease Subthalamic nucleus

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铁酸钙与赤铁矿非等温还原动力学

工程科学学报 2018年第11期40卷 1317-1324页

作者：李刚丁成义宣森炜吕学伟吴珊珊重庆大学材料科学与工程学院重庆400044 重庆大学机械传动国家重点实验室重庆400044

采用非等温热重的方法,在30%CO＋70%N_2（体积分数）气氛下,以10 K·min^（-1）升温至1123 K的过程中,比较了铁酸钙与赤铁矿的逐级还原过程及其还原动力学.结果表明：铁酸钙和赤铁矿开始还原温度分别为873 K和623 K;由反应速率与反应度... 详细信息

采用非等温热重的方法,在30%CO＋70%N_2（体积分数）气氛下,以10 K·min^（-1）升温至1123 K的过程中,比较了铁酸钙与赤铁矿的逐级还原过程及其还原动力学.结果表明：铁酸钙和赤铁矿开始还原温度分别为873 K和623 K;由反应速率与反应度的关系及分阶段X射线衍射物相分析发现,铁酸钙还原过程为两段式反应（Ca O·Fe_2O_3→2CaO·Fe_2O_3→Fe）,而赤铁矿还原过程为传统的三段式反应（Fe_2O_3→Fe_3O_4→Fe O→Fe）.通过Freeman-Carroll法计算得知铁酸钙和赤铁矿的还原平均活化能分别为49.88和43.74 k J·mol^（-1）;铁酸钙还原过程符合随机成核随后生长模型,动力学模式函数为Avrami-Erofeev方程,其积分形式为[-ln（1-α）]~n;而赤铁矿还原过程动力学机理分为两部分,在还原度α为0.1~0.5时,为三级化学反应模型,模式函数积分形式为1-（1-α）~3;在α为0.5~0.9时,符合二维圆柱形扩散模型,动力学模式函数为Valensi方程,其积分形式为α＋（1-α）ln（1-α）.

关键词：铁酸一钙三氧化二铁非等温还原动力学模式函数

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数据流处理中确定性QoS的保证方法

软件学报 2008年第8期19卷 2066-2079页

作者：武珊珊于戈吕雁飞谷峪李晓静东北大学信息科学与工程学院辽宁沈阳110004

与以往尽最大努力的查询服务提供方式不同,讨论了数据流处理中确定性QoS的保证问题以网络演算为理论基础,提出了一种数据流处理中的QoS建模和QoS保证方法.系统运行前验证所有查询在满足各自的QoS前提下的可调度性.在运行时为通过QoS可... 详细信息

与以往尽最大努力的查询服务提供方式不同,讨论了数据流处理中确定性QoS的保证问题以网络演算为理论基础,提出了一种数据流处理中的QoS建模和QoS保证方法.系统运行前验证所有查询在满足各自的QoS前提下的可调度性.在运行时为通过QoS可调度性验证的每个查询分配代表其QoS需求的服务曲线,从而保证各查询期望的QoS.为了提高查询处理效率,还讨论了保证QoS的批调度和查询共享.实验结果表明,该QoS保证方法能够有效地为数据流上的连续查询提供确定性的QoS保证.

关键词：数据流确定性QoS保证任务调度网络演算

Engineering CuMn Prussian blue analog-shelled nanobox for efficient electrochemical reduction of nitrate to ammonia

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Tungsten 2024年第4期6卷 833-844页

作者： Zi-Yi Yang Yu-Dong Li Dan Liu Mao-Sen Song Yang Gao Qing-Ping wu En-shan Han Yan-Zhen He Xiao-Hui Yang School of Chemical Engineering and Technology Hebei University of Technology Key Laboratory of Bio-Based Material Science and Technology Northeast Forestry University Institute of Electrochemical Energy Storage Helmholtz-Zentrum Berlin für Materialien und Energie Chongqing Institute of Green and Intelligent Technology Chinese Academy of Sciences

Electrocatalytic nitrate reduction reaction（ENRR） for ammonia synthesis is a promising strategy to relieve nitration contamination,as well as an alternative to the Haber-Bosch *** blue analogs（PBAs） are expected to be an electrocatalytic material with superior performance owing to their abundant active sites and open channel ***,most reported PBA materials possess low nitrate conversion and ammonia yield rates,which has led to a hindrance in their research of ***,CuMn-PBA-shelled nanoboxes（CuMn-PBA SNBs） synthesized through tannic acid etching and cation exchange approaches are demonstrated for efficient ammonia *** optimal CuMn-PBA SNBs electrode achieves a high nitrate conversion of 91.33% and ammonia selectivity of 98.87% in a 0.2 mol·L-1Na2SO4solution with100×10-6NO3--N at-1.4 V ***,the CuMn-PBA SNB s electrode exhibits exceptional stability throughout a 30 h electrocatalytic *** outstanding electrochemical performance is attributed to the unique hollow nanobox structure with abundant active sites and high-throughput transport pathways for ions' aspects.

关键词： Acid etching Ammonia synthesis Cation exchange Electrocatalytic nitrate reduction Nanobox Prussian blue analogs