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Research on thermal insulation materials properties under HTHP conditions for deep oil and gas reservoir rock ITP-Coring

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Petroleum Science 2024年第4期21卷 2625-2637页

作者： Zhi-Qiang He He-ping xie Ling Chen Jian-ping Yang Bo Yu Zi-Jie Wei Ming-Zhong Gao State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering College of Water Resource and Hydropower Sichuan University Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization Institute of Deep Earth Sciences and Green Energy College of Civil and Transportation Engineering Shenzhen University School of Mechanical Engineering Sichuan University College of Polymer Science and Engineering Sichuan University

Deep oil and gas reservoirs are under high-temperature conditions, but traditional coring methods do not consider temperature-preserved measures and ignore the influence of temperature on rock porosity and permeability, resulting in distorted resource assessments. The development of in situ temperaturepreserved coring(ITP-Coring) technology for deep reservoir rock is urgent, and thermal insulation materials are key. Therefore, hollow glass microsphere/epoxy resin thermal insulation materials(HGM/EP materials) were proposed as thermal insulation materials. The materials properties under coupled hightemperature and high-pressure(HTHP) conditions were tested. The results indicated that high pressures led to HGM destruction and that the materials water absorption significantly increased; additionally,increasing temperature accelerated the process. High temperatures directly caused the thermal conductivity of the materials to increase; additionally, the thermal conduction and convection of water caused by high pressures led to an exponential increase in the thermal conductivity. High temperatures weakened the matrix, and high pressures destroyed the HGM, which resulted in a decrease in the tensile mechanical properties of the materials. The materials entered the high elastic state at 150.C, and the mechanical properties were weakened more obviously, while the pressure led to a significant effect when the water absorption was above 10%. Meanwhile, the tensile strength/strain were 13.62 MPa/1.3%and 6.09 MPa/0.86% at 100.C and 100 MPa, respectively, which meet the application requirements of the self-designed coring device. Finally, K46-f40 and K46-f50 HGM/EP materials were proven to be suitable for ITP-Coring under coupled conditions below 100.C and 100 MPa. To further improve the materials properties, the interface layer and EP matrix should be optimized. The results can provide references for the optimization and engineering application of materials and thus technical su

关键词： Deep oil and gas reservoir rock In situ temperature-preserved coring (ITP-Coring) Hollow glass microsphere/epoxy resin thermal insulation materials (HGM/EP materials) High-temperature and high-pressure (HTHP) Physical and mechanical properties

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Yolk-shell FeSe_(2)@CoSe_(2)/FeSe_(2) heterojunction as anode materials for sodium-ion batteries with high rate capability and stability

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Journal of Materials Science & Technology 2024年第5期172卷 185-195页

作者： Liuyang Zhang Bicheng Zhu Difa Xu Zibao Qian ping xie Tao Liu Jiaguo Yu Laboratory of Solar Fuel Faculty of Materials Science and ChemistryChina University of GeosciencesWuhan 430078China Hunan Key Laboratory of Applied Environmental Photocatalysis Changsha UniversityChangsha 410022China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

Sodium-ion batteries are promising candidates for large-scale grid storage systems and other *** foremost advantage derives from superior environmental credentials,enhanced safety as well as lower raw material costs than lithium-ion *** is still challenging to explore desirable anode *** this study,FeSe_(2)@CoSe_(2)/FeSe_(2),with a yolk-shell structure was prepared by ion exchange and *** FeSe_(2)@CoSe_(2)/FeSe_(2)prepared as anode material for sodiumion batteries exhibits excellent rate capability due to the synergistic effect of bimetallic selenides and the interfacial effect of the ***,it delivers high performance(510 mAh g^(-1)at 0.2 A g^(-1)),superior rate capa-bility(90%retention at 5 A g^(-1)),and good long-time cycling stability(78%capacity retention after 1800 cycles at a high current density of 2 A g^(-1)).The optimized sodiumion full cell with FeSe_(2)@CoSe_(2)/FeSe_(2)as the anode and Na 3 V 2(PO 4)3 as the cathode still demonstrates excellent ***,a ca-pacity of 272 mAh g^(-1)(at 1 A g^(-1))within the operating voltage from 1 to 3.8 V can be *** work illustrates the potential of bimetallic selenides with heterostructures for performance enhancement of sodium-ion batteries.

关键词： Cobalt-iron selenide Heterojunctions Sodium storage Anode material Full battery

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Comparison of biliary protein spectrum in gallstone patients with obesity and those with normal body weight

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Hepatobiliary & Pancreatic Diseases International 2024年第4期23卷 385-392页

作者： Min-Zhi Chen ping xie Xiao-Chang Wu Zhen-Hua Tan Hai Qian Zhi-Hong Ma Xing Yao Department of Hepatopancreatobiliary Surgery Huzhou Central HospitalAffiliated Huzhou HospitalZhejiang University School of MedicineHuzhou 313000China Huzhou Key Laboratory of Molecular Medicine Huzhou Central HospitalAffiliated Huzhou HospitalZhejiang University School of MedicineHuzhou 313000China

Background: Obesity is a common public health issue and is currently deemed a disease. Research has shown that the risk of gallstones in individuals with obesity is elevated. This study aimed to explore the bile proteomics differences between cholelithiasis patients with obesity and normal body weight. Methods: Bile samples from 20 patients(10 with obesity and 10 with normal body weight) who underwent laparoscopic cholecystectomy at our center were subjected to tandem mass tag labeling(TMT) and liquid chromatography-tandem mass spectrometry(LC-MS/MS), followed by further bioinformatic analysis. Results: Among the differentially expressed proteins, 23 were upregulated and 67 were downregulated. Bioinformatic analysis indicated that these differentially expressed proteins were mainly involved in cell development, inflammatory responses, glycerolipid metabolic processes, and protein activation cascades. In addition, the activity of the peroxisome proliferator-activated receptor(PPAR, a subfamily of nuclear receptors) signaling pathway was decreased in the Kyoto Encyclopedia of Genes and Genomes(KEGG) enrichment analysis. Two downregulated proteins in the PPAR signaling pathway, APO A-Ⅰ and APO A-Ⅱ, were confirmed using enzyme-linked immunosorbent assay. Conclusions: The PPAR signaling pathway may play a crucial role in the development of cholelithiasis among patients with obesity. Furthermore, biliary proteomics profiling of gallstones patients with obesity is revealed, providing a reference for future research.

关键词： Proteome profiling Gallstones Obesity-associated gallstones Tandem mass tag labeling PPAR signaling

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Assessment on eco-environmental quality of the Yellow River Basin by considering desertification index

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Journal of Mountain Science 2024年第10期21卷 3275-3292页

作者： AN Min MENG Fan HE Weijun XUE Fang SONG Mengfei xie ping WANG Bei College of Economics&Management China Three Gorges UniversityYichang 443002China

Desertification has had a significant impact on the ecological environment of the Yellow River Basin(YRB)in ***,previous studies on the evaluation of the ecological environment quality(EEQ)in the YRB have paid limited attention to the indicator of *** is of great significance to incorporate the desertification index into the spatiotemporal assessment of the EEQ in the YRB in order to protect the ecological environment in the *** this study,based on multi-source remote sensing data from 91 cities in the YRB,this article proposes a desertification remote sensing ecological index(DRSEI)model,which builds upon the traditional Remote Sensing Ecological Index(RSEI)model,to analyze the spatiotemporal changes in the EEQ in the YRB from 2001 to ***,using the geographic detector(GD),and geographically and temporally weighted regression(GTWR)model,the study assesses the impact of human and natural factors on the EEQ in the *** research findings indicate that:(1)Compared to the traditional RSEI,the improved DRSEI shows a decreasing trend in the evaluation results of the *** the 24 cities,the change in DRSEI exceeds 0.05 compared to RSEI,accounting for 26.37%of the *** remaining 67 cities have changes within a range of less than 0.05,accounting for 73.63%of the YRB.(2)The results of the GD for individual and interactive effects reveal that rainfall and elevation have significant individual and interactive effects on the ***,after the interaction with natural factors,the explanatory power of human factors gradually increases over *** spatial heterogeneity results of GTWR demonstrate that rainfall has a strong direct positive impact on the EEQ,accounting for 98.90%of the influence,while temperature exhibits a more pronounced direct inhibitory effect,accounting for 76.92%of the *** activities have a strong negative impact on the EEQ and a weak positive impact.

关键词： Ecological environment quality Desertification index Desertification remote sensing ecological index Driving factors Yellow River Basin

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Camrelizumab,apatinib and hepatic artery infusion chemotherapy combined with microwave ablation for advanced hepatocellular carcinoma

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World Journal of Gastrointestinal Oncology 2024年第8期16卷 3481-3495页

作者： Meng-Xuan Zuo Chao An Yu-Zhe Cao Jia-Yu Pan Lu-ping xie Xin-Jing Yang Wang Li Pei-Hong Wu Department of Minimally Invasive Interventional Therapy Sun Yat-sen University Cancer CenterGuangzhou 510060Guangdong ProvinceChina Department of Interventional Ultrasound Chinese General PLA HospitalBeijing 100853China Department of Medical Imaging and Interventional Radiology Sun Yatsen University Cancer CenterGuangzhou 510060Guangdong ProvinceChina

BACKGROUND Hepatic arterial infusion chemotherapy and camrelizumab plus apatinib(TRIPLET protocol)is promising for advanced hepatocellular carcinoma(Ad-HCC).However,the usefulness of microwave ablation(MWA)after TRIPLET is still *** To compare the efficacy and safety of TRIPLET alone(T-A)vs TRIPLET-MWA(TM)for *** From January 2018 to March 2022,217 Ad-HCC patients were retrospectively *** them,122 were included in the T-A group,and 95 were included in the T-M group.A propensity score matching(PSM)was applied to balance *** survival(OS)was compared using the Kaplan-Meier curve with the log-rank *** overall objective response rate(ORR)and major complications were also *** After PSM,82 patients were included both the T-A group and the T-M *** ORR(85.4%)in the T-M group was significantly higher than that(65.9%)in the T-A group(P<0.001).The cumulative 1-,2-,and 3-year OS rates were 98.7%,93.4%,and 82.0%in the T-M group and 85.1%,63.1%,and 55.0%in the T-A group(hazard ratio=0.22;95%confidence interval:0.10-0.49;P<0.001).The incidence of major complications was 4.9%(6/122)in the T-A group and 5.3%(5/95)in the T-M group,which were not significantly different(P=1.000).CONCLUSION T-M can provide better survival outcomes and comparable safety for Ad-HCC than T-A.

关键词： Hepatic arterial infusion chemotherapy Hepatocellular carcinoma Molecular targeting agent Programmed cell death protein 1 inhibitors Microwave ablation

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Megafossils of Betulaceae from the Oligocene of Qaidam Basin and their paleoenvironmental and phytogeographic implications

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Plant Diversity 2024年第1期46卷 101-115页

作者： Tao Yang Jia-Hao Cai Yan-Zhi Dai Hong-Yu Chen Lei Han Li Zhang Wei-Yu Liang Xu-Jun Li Wen-Jia Li Jing-Yu Wu San-ping xie De-Fei Yan School of Earth Sciences and Key Laboratory of Mineral Resources in Western China(Gansu Province) Lanzhou UniversityLanzhou 730000China Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences Institute of Vertebrate Paleontology and PaleoanthropologyChinese Academy of SciencesBeijing 100044China State Key Laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and PaleoenvironmentChinese Academy of SciencesNanjing 210008China Center for Research and Education on Biological Evolution and Environments School of Earth Sciences and EngineeringNanjing UniversityNanjing 210023China

Understanding the paleoenvironment and phytogeographical history of the Tibetan Plateau,China relies on discovering new plant *** Qaidam Basin has long been regarded as an ideal‘field laboratory’to investigate the paleoclimate and paleobiological evolution of the northern Tibetan ***,fossil angiosperms from the Qaidam Basin are rare,and our knowledge of its paleovegetation is ***,we report fossil leaves and fruits of Betulaceae found from the Oligocene Shangganchaigou Formation of northwestern Qaidam Basin(Huatugou area).Comparative morphological analysis led us to assign the fruits to the Betula subgenus Betula and the leaves to Carpinus *** findings,together with other reported fossil plants from the same locality,reveal a close floristic linkage between the Qaidam Basin and Europe during the *** northern pathway of this floristic exchange may have crossed through the Qaidam Basin during the late *** floristic linkage may have been facilitated by the continuous narrowing of the Turgai Strait and stronger westerlies,which transported moisture and provided favorable climatic ***,fossil plants collected from the Qaidam Basin suggest that during the Oligocene this region had warm and humid deciduous broad-leaf forest,which differs from the region’s modern vegetation and indicates that the Qaidam Basin may have been a suitable region for these plants to flourish and spread during the Oligocene.

关键词： Paleoenvironment Biogeography Betulaceous fossil Qaidam basin Tibetan Plateau Oligocene

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Left inferior phrenic arterial malformation mimicking gastric varices: A case report and review of literature

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World Journal of Gastrointestinal Surgery 2024年第9期16卷 3057-3064页

作者： Han Wang Yi-Qing Tan ping Han An-Hui Xu Han-Lin Mu Zhe Zhu Li Ma Mei Liu Hua-ping xie Department of Gastroenterology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030Hubei ProvinceChina Department of Radiology Tongren Hospital of Wuhan University(Wuhan Third Hospital)Wuhan UniversityWuhan 430063Hubei ProvinceChina Department of Radiology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030Hubei ProvinceChina Department of Pathology and Cell Biology Columbia University Irving medical centerNew York-Presbyterian HospitalNew YorkNY 10065United States Department of Gastroenterology Jianli People's HospitalJianli 433300Hubei ProvinceChina

BACKGROUND Gastric submucosal arterial dilation resulting from splenic artery occlusion represents an exceedingly rare etiology of acute upper gastrointestinal bleeding(UGIB).Although endoscopy is a widely utilized diagnostic and therapeutic modality for gastrointestinal bleeding,it has limitations in detecting arterial *** SUMMARY This report presents a rare case of massive UGIB in a 57-year-old male with a tortuous left inferior phrenic artery accompanied by splenic artery occlusion.“Gastric varices”was identified during the patient's endoscopy one year before *** initial hemostasis by endoscopic clipping,the patient experienced massive rebleeding after one month,requiring intervention with transcatheter arterial embolization(TAE)to achieve *** This is the first case to report UGIB due to a tortuous left inferior phrenic *** case highlights the limitations of endoscopy in identifying arterial abnormalities and emphasizes the potential of TAE as a viable alternative for the management of arterial bleeding in the gastrointestinal tract.

关键词： Upper gastrointestinal bleeding Left inferior phrenic artery Splenic artery occlusion Gastrointestinal endoscopy Digital subtraction angiography Case report

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基于端到端深度神经网络和图搜索的OCT图像视网膜层边界分割方法

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软件学报 2024年第6期35卷 3036-3051页

作者：胡凯蒋帅刘冬高协平智能计算与信息处理教育部重点实验室(湘潭大学) 湖南湘潭411105 智能计算与语言信息处理湖南省重点实验室(湖南师范大学) 湖南长沙410081 医学影像人工智能湖南省重点实验室(湘南学院) 湖南郴州423000

视网膜层边界的形态变化是眼部视网膜疾病出现的重要标志,光学相干断层扫描(optical coherence tomography,OCT)图像可以捕捉其细微变化,基于OCT图像的视网膜层边界分割能够辅助相关疾病的临床判断.在OCT图像中,由于视网膜层边界的形态... 详细信息

视网膜层边界的形态变化是眼部视网膜疾病出现的重要标志,光学相干断层扫描(optical coherence tomography,OCT)图像可以捕捉其细微变化,基于OCT图像的视网膜层边界分割能够辅助相关疾病的临床判断.在OCT图像中,由于视网膜层边界的形态变化多样,其中与边界相关的关键信息如上下文信息和显著性边界信息等对层边界的判断和分割至关重要.然而已有分割方法缺乏对以上信息的考虑,导致边界不完整和不连续.针对以上问题,提出一种“由粗到细”的基于端到端深度神经网络和图搜索(graph search,GS)的OCT图像视网膜层边界分割方法,避免了非端到端方法中普遍存在的“断层”现象.在粗分割阶段,提出一种端到端的深度神经网络—注意力全局残差网络(attention global residual network,AGR-Net),以更充分和有效的方式提取上述关键信息.具体地,首先设计一个全局特征模块(global feature module,GFM),通过从图像的4个方向扫描以捕获OCT图像的全局上下文信息;其次,进一步将通道注意力模块(channel attention module,CAM)与全局特征模块串行组合并嵌入到主干网络中,以实现视网膜层及其边界的上下文信息的显著性建模,有效解决OCT图像中由于视网膜层形变和信息提取不充分所导致的误分割问题.在细分割阶段,采用图搜索算法去除AGR-Net粗分割结果中的孤立区域或和孔洞等,保持边界的固定拓扑结构和连续平滑,以实现整体分割结果的进一步优化,为医学临床的诊断提供更完整的参考.最后,在两个公开数据集上从不同的角度对所提出的方法进行性能评估,并与最新方法进行比较.对比实验结果也表明所提方法在分割精度和稳定性方面均优于现有方法.

关键词： OCT图像视网膜层边界分割残差神经网络注意力图搜索

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语文课程的核心词“阅读理解”

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课程．教材．教法 2024年第6期44卷 84-92页

作者：王荣生谢平上海师范大学教育学院上海200234

自21世纪初到现在的语文课程标准文本,都刻意遮蔽了语文课程的核心词“阅读理解”以及与它紧密相连的“阅读能力”“学习阅读”,这种遮蔽有较大弊端。“阅读理解”是阅读的核心。“阅读理解能力”有三重含义:一是统括解码能力、所必需... 详细信息

自21世纪初到现在的语文课程标准文本,都刻意遮蔽了语文课程的核心词“阅读理解”以及与它紧密相连的“阅读能力”“学习阅读”,这种遮蔽有较大弊端。“阅读理解”是阅读的核心。“阅读理解能力”有三重含义:一是统括解码能力、所必需的背景知识、阅读理解过程的心智活动这三个方面,二是专指解码能力,三是特指阅读理解过程的心智活动。“阅读理解过程的心智活动”的实质就是运用阅读方法和阅读策略。在解码能力和背景知识基本具备的前提下,阅读理解能力即阅读方法与阅读策略的运用能力。中小学生“学习阅读”的核心内容,一是在认字基础上的识词,达到流利阅读水平。二是阅读理解,学习并运用阅读理解的方法和策略,抓住关键词、关键语句,在上下文的联系中理解作者所表达的意思。

关键词：语文课程阅读理解阅读能力学习阅读课程内容

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结核分枝杆菌生物素合成途径是抗结核菌药物开发的新靶点

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药学学报 2024年第3期59卷 503-510页

作者：黄灵曦谢建平西南大学生命科学学院现代生物医药研究所重庆400715

结核分枝杆菌(Mycobacterium tuberculosis)感染导致的结核病仍然是全球主要的公共卫生难题。生物素即维生素H是脂肪酸生物合成、糖异生及氨基酸代谢等途径所需的辅因子。结核分枝杆菌无法从外界吸收生物素,生物素的合成是分枝杆菌生物... 详细信息

结核分枝杆菌(Mycobacterium tuberculosis)感染导致的结核病仍然是全球主要的公共卫生难题。生物素即维生素H是脂肪酸生物合成、糖异生及氨基酸代谢等途径所需的辅因子。结核分枝杆菌无法从外界吸收生物素,生物素的合成是分枝杆菌生物素的唯一来源。不同于经典的BioC-BioH、BioI-BioW途径及非经典的BioZ途径,结核分枝杆菌早期阶段通过“BioC-BioH(2)”途径合成生物素。本综述重点总结结核分枝杆菌独特的生物素合成途径及其关键基因,尤其是该途径及生物素依赖性羧化酶对结核病一二线药物的响应,以及靶向生物素合成的抑制剂和天然产物。

关键词：结核分枝杆菌生物素生物素依赖性羧化酶生物素合成抗结核一二线药物

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