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Lacustrine shale oiliness influenced by diabase intrusions in the Paleogene Funing Formation,Subei Basin,China

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Petroleum Science 2023年第5期20卷 2683-2694页

作者： Biao Sun Xiao-Ping Liu Jie Liu Qi-Dong Liu hong-liang duan Shi-Li Liu Ming Guan Tian Liu Zu-Xian Hua Kai Sheng Yu-Jie Xing State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum(Beijing)Beijing102249China College of Geosciences China University of Petroleum(Beijing)Beijing102249China International Petroleum Exploration and Production Corporation SINOPECBeijing100029China Research Institute of Exploration and Development SINOPEC Jiangsu Oilfield CompanyJiangsu225009China

The research on the correlation between hydrocarbon accumulations and magmatic activities has always attracted aroused much wide *** research has primarily the hydrocarbon generations capability of source rocks and the quality of reservoirs by diabase ***,rare systematic research has been conducted on the oiliness and enrichment *** be specific,the diabase intrusive zone,the contact metamorphic zone and the normal shale zone of the Funing Formation in the Gaoyou Sag,Subei Basin were taken as the object of this ***,in this study,the hydrocarbon generation quality,reservoir quality,and oil-bearing quality of diabase-metamorphic zone-normal shale were evaluated using X-ray diffractions,argon ion polishing-field emission scanning electron microscope,energy spectrum,rock slice/light-sheet microscopic observations,organic geochemical tests,N_(2) gas adsorption and 2D NMR *** results indicated that the intrusive zone,the metamorphic zone,and the normal zone were formed in order by the degree of effect of diabase ***,the oil content of different parts exhibited significant heterogeneity due to the baking effect of diabase,and the metamorphic zone had the significantly better oil-bearing nature than the intrusive ***,a distribution model was proposed for the diabase intrusive zone-metamorphic zone-normal surrounding rock zone.

关键词： Shale reservoirs Diabase intrusion Oiliness Funing formation

Preparation and applications of calcium ferrite as a functional material:A review

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 292-310页

作者： Xiuli Han Bowen duan Lei Liu Shilong Fang Weiwei Wang College of Mining Engineering North China University of Science and TechnologyTangshan 063210China Collaborative Innovation Center of Green Development and Ecological Restoration of Mineral Resources of Hebei Province Tangshan 063210China Key Laboratory of Mining Development and Security Technology of Hebei Province Tangshan 063210China

Calcium ferrite(CF)is recognized as a potential green and efficient functional material because of its advantages of magnetism,electrochemistry,catalysis,and biocompatibility in the fields of materials chemistry,environmental engineering,and ***-fore,the obtained research results need to be systematically summarized,and new perspectives on CF and its composite materials need to be *** on the presented studies of CF and its composite materials,the types and structures of the crystal are *** addition,the current application technologies and theoretical mechanisms with various properties in different fields are ***,the various preparation methods of CF and its composite materials are elaborated in *** importantly,the advantages and disadvantages of the synthesis methods of CF and its composite materials are discussed,and the existing problems and emerging challenges in practical production are ***,the key future research directions of CF and its composite materials have been prospected from the potential application technologies to provide references for its synthesis and efficient utilization.

关键词： calcium ferrite mineral functional materials preparation application perspectives

工作压力对台湾地区汽车旅馆柜台人员忧郁情绪的影响

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职业与健康 2007年第16期23卷 1381-1383页

作者：梁文琪李学愚洪端良立德管理学院观光与旅馆学系台湾省台南市70901 立德管理学院餐饮管理学系

目的了解台湾地区汽车旅馆柜台人员实际工作现况,进而探讨其工作压力对忧郁情绪的影响。方法利用参与式观察及结构式访谈等方式,实地观察及访问台湾地区汽车旅馆内任职的柜台人员。结果造成忧郁情绪的原因中有23·5%源自于工作压力,由... 详细信息

目的了解台湾地区汽车旅馆柜台人员实际工作现况,进而探讨其工作压力对忧郁情绪的影响。方法利用参与式观察及结构式访谈等方式,实地观察及访问台湾地区汽车旅馆内任职的柜台人员。结果造成忧郁情绪的原因中有23·5%源自于工作压力,由柜台人员自评造成工作压力的主要来源的统计结果显示,以"必须反覆做很多重复性的事务""必须随时学习新事物"、"突发状况层出不穷,担心无法应付"等3项的认同高度提高。结论台湾地区汽车旅馆柜台人员工作压力较大,其忧郁情绪与工作压力有关。

关键词：汽车旅馆柜台人员工作压力忧郁情绪

Relationships Between Fractal Road and Drainage Networks in Wuling Mountainous Area:Another Symmetric Understanding of Human-Environment Relations

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Journal of Mountain Science 2014年第4期11卷 1060-1069页

作者： LIU Cheng-liang duan De-zhong ZHANG hong College of Urban and Regional Science East China Normal University Faculty of Geosciences and Environmental Engineering Southwest Jiaotong University

Symmetrical relationships between humans and their environment have been referred to as an extension of symmetries in the human geographical system and have drawn great attention. This paper explored the symmetry between physical and human systems through fractal analysis of the road and drainage networks in Wuling mountainous area. We found that both the road and drainage networks reflect weak clustering distributions. The evolution of the road network shared a significant self-organizing composition, while the drainage network showed obvious double fraetal characteristics. The geometric fractal dimension of the road network was larger than that of the drainage network. In addition, when assigned a weight relating to hierarchy or length, neither the road network nor drainage network showed a fractal property. These findings indicated that the fractal evolution of the road network shared certain similarities with fractal distribution of the drainage network. The symmetry between the two systems resulted from an interactive process of destroying symmetry at the lower order and reconstructing symmetry at the higher order. The relationships between the fractal dimensions of the rural-urban road network, the drainage network andthe urban system indicated that the development of this area was to achieve the symmetrical isomorphism of physical-human geographical systems.

关键词： Fractal road network Fractal drainagenetwork Symmetry Human-environment relation Self-organization

电容式微机械超声传感器(CMUT)声场特性分析

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仪表技术与传感器 2016年第12期 1-4页

作者：王朝杰王红亮段培盛陈一波胡晓峰中北大学电子测试国家重点实验室山西太原030051 山西古交西山义城煤业有限责任公司山西太原030203

为研究CMUT指向性,将CMUT微元看成圆形活塞式换能器,根据指向性函数的理论,计算出CMUT微元的指向性公式,依据Bridge乘积原理,推导出了一种计算CMUT阵元、CMUT一维线阵和CMUT面阵指向性公式,并利用MATLAB软件对CMUT微元、阵元、线阵和面... 详细信息

为研究CMUT指向性,将CMUT微元看成圆形活塞式换能器,根据指向性函数的理论,计算出CMUT微元的指向性公式,依据Bridge乘积原理,推导出了一种计算CMUT阵元、CMUT一维线阵和CMUT面阵指向性公式,并利用MATLAB软件对CMUT微元、阵元、线阵和面阵指向性进行了仿真分析,得出CMUT类型对指向性、主瓣宽度和旁瓣的影响,证实了多维模型的优势,为CMUT结构优化设计提供了基础。基于CMUT微元声场理论分析基础,根据瑞利-索末菲积分公式推导出CMUT阵元、CMUT阵列的辐射声场分布函数,并仿真验证了其聚焦和指向性性能。

关键词：电容式微机械超声传感器(CMUT) 声场指向性 MATLAB 仿真

Peripheral mitochondrial DNA as a neuroinflammatory biomarker for major depressive disorder

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Neural Regeneration Research 2025年第6期20卷 1541-1554页

作者： Jinmei Ye Cong duan Jiaxin Han Jinrong Chen Ning Sun Yuan Li Tifei Yuan Daihui Peng Division of Mood Disorder Shanghai Mental Health CenterShanghai Jiao Tong University School of MedicineShanghaiChina Department of Psychiatry First Hospital of Shanxi Medical UniversityTaiyuanShanxi ProvinceChina Shanghai Key Laboratory of Psychotic Disorders Brain Health InstituteNational Center for Mental DisordersShanghai Mental Health CenterShanghai Jiao Tong University School of MedicineShanghaiChina Co-Innovation Center of Neuroregeneration Nantong UniversityNantongJiangsu ProvinceChina

In the pathogenesis of major depressive disorder, chronic stress-related neuroinflammation hinders favorable prognosis and antidepressant response. Mitochondrial DNA may be an inflammatory trigger, after its release from stress-induced dysfunctional central nervous system mitochondria into peripheral circulation. This evidence supports the potential use of peripheral mitochondrial DNA as a neuroinflammatory biomarker for the diagnosis and treatment of major depressive disorder. Herein, we critically review the neuroinflammation theory in major depressive disorder, providing compelling evidence that mitochondrial DNA release acts as a critical biological substrate, and that it constitutes the neuroinflammatory disease pathway. After its release, mitochondrial DNA can be carried in the exosomes and transported to extracellular spaces in the central nervous system and peripheral circulation. Detectable exosomes render encaged mitochondrial DNA relatively stable. This mitochondrial DNA in peripheral circulation can thus be directly detected in clinical practice. These characteristics illustrate the potential for mitochondrial DNA to serve as an innovative clinical biomarker and molecular treatment target for major depressive disorder. This review also highlights the future potential value of clinical applications combining mitochondrial DNA with a panel of other biomarkers, to improve diagnostic precision in major depressive disorder.

关键词： biomarker cytokine exosomes inflammasome major depressive disorder microglia mitochondrial DNA mitochondrial dysfunction neuroinflammation Toll-like receptor

Persistent alterations in gray matter in COVID-19 patients experiencing sleep disturbances:a 3-month longitudinal study

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Neural Regeneration Research 2025年第10期20卷 3013-3024页

作者： Kaixuan Zhou Gaoxiong duan Ying Liu Bei Peng Xiaoyan Zhou Lixia Qin Lingyan liang Yichen Wei Qingping Zhang Xiaocheng Li Haixia Qin Yinqi Lai Yian Lu Yan Zhang Jiazhu Huang Jinli Huang Yinfei Ouyang Bolin Bin Mingming Zhao Jun Liu Jianrong Yang Demao Deng Guangxi Key Laboratory of Special Biomedicine School of MedicineGuangxi UniversityNanningGuangxi Zhuang Autonomous RegionChina Department of Radiology the People’s Hospital of Guangxi Zhuang Autonomous RegionGuangxi Academy of Medical SciencesNanningGuangxi Zhuang Autonomous RegionChina Department of Sleep Medicine the People’s Hospital of Guangxi Zhuang Autonomous RegionNanningGuangxi Zhuang Autonomous RegionChina Department of Radiology The Second Xiangya HospitalCentral South UniversityChangshaHunan ProvinceChina Guangxi Clinical Research Center for Sleep Medicine the People’s Hospital of Guangxi Zhuang Autonomous RegionNanningGuangxi Zhuang Autonomous RegionChina

Sleep disturbances are among the most prevalent neuropsychiatric symptoms in individuals who have recovered from severe acute respiratory syndrome coronavirus 2 *** studies have demonstrated abnormal brain structures in patients with sleep disturbances who have recovered from coronavirus disease 2019(COVID-19).However,neuroimaging studies on sleep disturbances caused by COVID-19 are scarce,and existing studies have primarily focused on the long-term effects of the virus,with minimal acute phase *** a result,little is known about the pathophysiology of sleep disturbances in the acute phase of *** address this issue,we designed a longitudinal study to investigate whether alterations in brain structure occur during the acute phase of infection,and verified the results using 3-month follow-up data.A total of 26 COVID-19 patients with sleep disturbances(aged 51.5±13.57 years,8 women and 18 men),27 COVID-19 patients without sleep disturbances(aged 47.33±15.98 years,9 women and 18 men),and 31 age-and gender-matched healthy controls(aged 49.19±17.51 years,9 women and 22 men)were included in this *** COVID-19 patients with sleep disturbances were included in a longitudinal *** found that COVID-19 patients with sleep disturbances exhibited brain structural changes in almost all brain *** cortical thicknesses of the left pars opercularis and left precuneus were significantly negatively correlated with Pittsburgh Sleep Quality Index ***,we observed changes in the volume of the hippocampus and its subfield regions in COVID-19 patients compared with the healthy *** 3-month follow-up data revealed indices of altered cerebral structure(cortical thickness,cortical grey matter volume,and cortical surface area)in the frontal-parietal cortex compared with the baseline in COVID-19 patients with sleep *** findings indicate that the sleep disturbances patients had altered morphology in the cortical an

关键词： brain structure cortical gray matter volume cortical surface area cortical thickness hippocampus magnetic resonance imaging Pittsburgh Sleep Quality Index severe acute respiratory syndrome coronavirus 2 infections sleep disturbances sub-cortical volume

Microscopic Characteristics of Damage Evolution in Ultrapure Aluminum under Tensile Loading

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Chinese Physics Letters 2011年第1期28卷 153-155页

作者： QI Mei-Lan Zhong Sheng FAN duan LUO Chao HE hong-liang School of Science Wuhan University of Technology Wuhan 430070 Laboratory for Shock Wave and Detonation Physics Research Institute of Fluid Physics China Academy of Engineering Physics Mianyang 621900

A series of plate-experiments are carried out to acquire ultrapure aluminum （purity,. 99.999%） samples with damage. Based on the metallographic of all ＂soft-recovered＂ samples, the characteristics of damage evolution and spallation damage mechanism in ultrapure aluminum are analyzed in detail. Results show that the damage will increase regularly with increasing loading＂ strength. Most of voids appear in the grain boundary and grow alone under tensile loading＂ before they coalesce each other to form big irregular voids. These analysis results are helpful to understand the evolution process of ductile metal dynamic fracture and establish the damage evolution model.

关键词： Condensed matter: structural mechanical & thermal

Phases in a General Chaotic Three-Coupled-Laser Array

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Chinese Physics Letters 2012年第4期29卷 71-74页

作者： ZHOU liang duan Kai-liang State Key Laboratory of Transient Optics and Photonics Xi’an Institute of Optics and Precision MechanicsChinese Academy of SciencesXi’an 710119

Phases in a general chaotic three-coupled-laser array are numerically *** attractors are firstly found to exist within corresponding basins of attraction on the projection plane of phase differences of the threecoupled-laser *** the chaos appears or not is related not only to the coupling strength but also to the initial phase *** a large coupling strength new phase attractors can *** the increase of coupling strength,the three-coupled-laser array has a great chance of resulting in a quiescent to chaotic *** on these results,we present the method to reach phase-locking when the coupling strength is strong.

关键词： state coupling chaotic