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World Journal of Clinical Cases 2021年第6期9卷 1353-1358页

作者： Hong-Guang Zhao Ke-Wei Zhang Sen Hou yu-yin dai Song-Bai Xu Department of Nuclear Medicine The First Hospital of Jilin UniversityChangchun 130021Jilin ProvinceChina Department of Thoracic Surgery The First Hospital of Jilin UniversityChangchun 130021Jilin ProvinceChina Department of Neurosurgery The First Hospital of Jilin UniversityChangchun 130021Jilin ProvinceChina

BACKGROUND Epithelioid hemangioendothelioma(EHE)is an uncommon low-grade aggressive vascular *** can occur in almost all locations,but is rarely encountered in *** SUMMARY We report a 23-year-old man who presented with left hip pain with no obvious cause.X-ray revealed bone destruction in the left femoral neck with sclerosis at the edges of the *** resonance imaging(MRI)showed bone destruction in the medullary cavity of the left femoral head and neck.18Fdeoxyglucose-positron emission tomography/computed tomography(PET/CT)imaging showed bone destruction in the left ischium,acetabulum,and left femoral head neck,accompanied by increased radioactive uptake;the maximum standard uptake value was *** examination revealed spindleshaped mesenchymal tissue hyperplasia with scattered epithelioid *** patient underwent left femoral head replacement *** signs of recurrence were observed as of the 18-mo *** The definitive diagnosis of femoral EHE can be established aided by the MRI and PET/CT findings.

关键词： Bone radiography Hemangioendothelioma Epithelioid Vascular tumor Pathology Case report

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空气钻井井下燃爆事例分析

天然气工业 2008年第5期28卷 53-54页

作者：张林余代银许期聪余锐蒋斌中国石油天然气集团公司川庆钻探工程公司钻采工艺技术研究院 618300 中国石油西南油气田公司蜀南气矿

空气钻井在提高钻速、解决恶性井漏、保护油气层等方面具有优势,因而应用越来越广泛。但在空气钻井过程中若钻遇伴有可燃气体(如天然气?石油等烃类物质)的地层时,空气与其混合后若继续钻井则井下极易达到燃爆条件,在滤饼环?钻柱摩擦等... 详细信息

空气钻井在提高钻速、解决恶性井漏、保护油气层等方面具有优势,因而应用越来越广泛。但在空气钻井过程中若钻遇伴有可燃气体(如天然气?石油等烃类物质)的地层时,空气与其混合后若继续钻井则井下极易达到燃爆条件,在滤饼环?钻柱摩擦等条件刺激下就会引起井下燃爆,进而引发卡钻事故。以某井的燃爆卡钻事故为例,分析了其燃爆的主要原因,并采用加强空气钻井过程中的录井监测、注入惰性气体等方法来避免井下燃爆事故的发生。

关键词：空气钻井钻井液天然气井下燃爆卡钻

Human-induced pluripotent stem cell-derived neural stem cell exosomes improve blood-brain barrier function after intracerebral hemorrhage by activating astrocytes via PI3K/AKT/MCP-1 axis

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Neural Regeneration Research 2025年第2期20卷 518-532页

作者： Conglin Wang Fangyuan Cheng Zhaoli Han Bo Yan Pan Liao Zhenyu yin Xintong Ge dai Li Rongrong Zhong Qiang Liu Fanglian Chen Ping Lei Department of Geriatrics Tianjin Medical University General HospitalTianjinChina School of Medicine Nankai UniversityTianjinChina Tianjin Neurological Institute TianjinChina

Cerebral edema caused by blood-brain barrier injury after intracerebral hemorrhage is an important factor leading to poor ***-induced pluripotent stem cell-derived neural stem cell exosomes(hiPSC-NSC-Exos)have shown potential for brain injury repair in central nervous system *** this study,we explored the impact of hiPSC-NSC-Exos on blood-brain barrier preservation and the underlying *** results indicated that intranasal delivery of hiPSC-NSC-Exos mitigated neurological deficits,enhanced blood-brain barrier integrity,and reduced leukocyte infiltration in a mouse model of intracerebral ***,hiPSC-NSC-Exos decreased immune cell infiltration,activated astrocytes,and decreased the secretion of inflammatory cytokines like monocyte chemoattractant protein-1,macrophage inflammatory protein-1α,and tumor necrosis factor-αpost-intracerebral hemorrhage,thereby improving the inflammatory *** sequencing indicated that hiPSC-NSC-Exo activated the PI3K/AKT signaling pathway in astrocytes and decreased monocyte chemoattractant protein-1 secretion,thereby improving blood-brain barrier *** with the PI3K/AKT inhibitor LY294002 or the monocyte chemoattractant protein-1 neutralizing agent C1142 abolished these *** summary,our findings suggest that hiPSC-NSC-Exos maintains blood-brain barrier integrity,in part by downregulating monocyte chemoattractant protein-1 secretion through activation of the PI3K/AKT signaling pathway in astrocytes.

关键词： AKT astrocyte blood-brain barrier cerebral edema exosomes human-induced pluripotent stem cells intracerebral hemorrhage neural stem cells neuroinflammation PI3K

Effects of Ti-and Nb-based transition element from single to multiple compound oxides and carbon-based composite additives on Mg-MgH2 hydrogen storage material

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Tungsten 2025年第1期7卷 32-49页

作者： Li-Rong Xiao Chen Chen Shuo Wang Zi-yin dai Hideo Kimura Cui Ni Chuan-Xin Hou Xue-Qin Sun Si-Jie Guo Wei Du Xiu-Bo Xie School of Environmental and Material Engineering Yantai University Bosch HUAyu Steering Systems (Yantai) Co. Ltd.Ytp/MFE University of Tennessee Knoxville Shandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta Shandong University of Aeronautics

MgH2is considered as a promising hydrogen storage material for its high hydrogen storage capacity,low cost and abundant resource ***,the low kinetics and high enthalpy formation of MgH2limit its wide *** the perspective of adding catalysts to enhance the hydrogen storage properties of Mg-MgH2,this article elaborated the main catalysts based on Ti and Nb transition elements,including single oxide catalysts,binary oxides catalysts（combined with Ni,Na,Sr,V,etc.）,multiple catalysts bound to carbon,and composite catalysts with Ti and Nb elements combined with MXene ***,the main pathways of various catalysts to reduce the reaction activity and broaden the hydrogen desorption channel were also *** Ti-based catalysts can enhance the reactive sites of the matrix by forming multivalent states,while Nb-based catalysts broaden the hydrogen reaction channels by forming tiny *** improving the size structure and enhancing the grain size stability,combined with carbon materials should be the future considerations.

关键词： Catalysts Mg-based hydrogen storage alloys Solid hydrogen storage Transition metal elements

乙醇诱导对鼠李糖乳杆菌HCCB 20591代谢乙醛的影响

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生物技术通报 2017年第7期33卷 133-137页

作者：钟俭鸿殷瑜陈代杰华东理工大学生物工程学院上海200237 上海来益生物药物研究开发中心有限责任公司上海201203 上海交通大学药学院上海200240

乙醛是酒类饮品中的风味物质,但乙醛过高不仅会影响酒类饮品的风味,还会对人体产生潜在的危害。从可食用的益生菌中筛选可以代谢乙醛的菌株,并探究活性菌株的乙醛代谢能力跟乙醇诱导的关系。通过静息细胞法筛选获得的鼠李糖乳杆菌HCCB 2... 详细信息

乙醛是酒类饮品中的风味物质,但乙醛过高不仅会影响酒类饮品的风味,还会对人体产生潜在的危害。从可食用的益生菌中筛选可以代谢乙醛的菌株,并探究活性菌株的乙醛代谢能力跟乙醇诱导的关系。通过静息细胞法筛选获得的鼠李糖乳杆菌HCCB 20591具有较强代谢乙醛的能力,且其代谢能力受乙醇诱导。当乙醇诱导浓度为3%,诱导时间为12 h时,乙醛转化率达到41.13%。GC-MS分析其代谢产物除了乙酸外,还生成了乙醇。采用Real time RT-PCR方法分析相关基因的转录水平,发现乙醛代谢是乙醇脱氢酶、乙醛脱氢酶和醛氧化还原酶综合催化作用的结果。

关键词：鼠李糖乳杆菌乙醇诱导乙醛代谢综合催化作用

Approach from the laboratory to the field: New strategies in the control of mosquito-borne infectious diseases

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Science China Life Sciences 2025年第1期68卷 303-305页

作者： Ziqian Xu Lianpan dai Jun Liu National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases (NITFID) National Institute for Viral Disease Control and PreventionChinese Center for Disease Control and Prevention CAS Key Laboratory of Pathogen Microbiology and Immunology Institute of MicrobiologyChinese Academy of Sciences

Vector-borne viruses, transmitted among humans and animal hosts through bites of vectors such as mosquitoes and ticks,pose a great and ongoing threat to public health and biosafety(Yang et al., 2022).Among them, dengue virus-induced epidemics, have dramatically increased worldwide in recent decades. The report released by the World Health Organization(WHO) at the end of 2023 showed that dengue epidemic globally surged in2023, with the number of reported cases nearing a historical peak.

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基于风格迁移的柔性输尿管内窥镜图像深度估计

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天津大学学报（自然科学与工程技术版） 2025年第1期58卷 47-55页

作者：辛运帏尹晶晶赵煜代煜崔亮殷小涛南开大学网络空间安全学院天津300071 天津市网络与数据安全技术重点实验室天津300071 南开大学机器人与信息自动化研究所天津300350 民航总医院泌尿外科北京100123 解放军总医院第四医学中心泌尿外科北京100048

输尿管内窥镜手术是目前针对肾结石的主流治疗方案,其外形细长、镜体柔软,能够灵活穿越人体自然腔道的内径狭窄的尿道和输尿管,检查视野范围更广,使医生能够更好地观察到病变区域.但一般的输尿管内窥镜仅配备单目摄像头进行配合手术操作... 详细信息

输尿管内窥镜手术是目前针对肾结石的主流治疗方案,其外形细长、镜体柔软,能够灵活穿越人体自然腔道的内径狭窄的尿道和输尿管,检查视野范围更广,使医生能够更好地观察到病变区域.但一般的输尿管内窥镜仅配备单目摄像头进行配合手术操作,无法借助额外设备获取数据导致了其图像信息的匮乏;同时,相比于胃肠、鼻镜等手术场景,本研究的肾内场景在不具备公开数据集的同时,图像质量参差不齐,表面纹理细节不足,孔洞区域褶皱少,受模糊反光等干扰大,都易使深度估计受到影响针对以上问题,提出了一种基于改进风格迁移模型的深度估计方法.该方法首先根据术前CT图像重建肾脏内部腔道模型并提取中心路径,将虚拟内窥镜的摄像头设置在插值后的路径点上,构建了虚拟内窥镜漫游图像与深度估计图像一一对应的数据集,并基于此数据集训练了一个深度估计模型;随后,使用添加高效通道注意力(ECA)模块的改进风格迁移模型,将真实内窥镜图像域迁移至虚拟内窥镜图像域;最后,再将经由风格迁移产生的虚拟内窥镜图像送入上述训练得来的深度估计模型中,最终实现真实内窥镜图像的深度估计.所提方法的可行性及有效性在输尿管钬激光碎石术的图像中得到验证.

关键词：深度估计风格迁移注意力机制深度学习

Emerging trends in the selective production of value-added aromatics

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Science China Chemistry 2025年第1期68卷 15-20页

作者： yuchao Wu Houliang dai Weisheng Yang Yaxing Li Lichen Liu Petrochemical Research Institute Company Limited China National Petroleum Corporation Engineering Research Center of Advanced Rare Earth Materials Department of Chemistry Tsinghua University

1 Introduction Aromatics (mainly benzene, toluene, and xylenes, BTX) are essential intermediates in the chemical industry. They are employed in the synthesis of a broad spectrum of chemicals and materials, e.g., various polymers, plastics, resins, solvents, dyes, pharmaceuticals [1]. The manufacturing pathway of BTX mainly includes petroleum reforming of naphtha, coal-to-aromatics, methanol-to-aromatics [2].

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Research status and prospects of the fractal analysis of metal material surfaces and interfaces

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 20-38页

作者： Qinjin dai Xuefeng Liu Xin Ma Shaojie Tian Qinghe Cui Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology BeijingBeijing 100083China Beijing Laboratory of Metallic Materials and Processing for Modern Transportation University of Science and Technology BeijingBeijing 100083China Laboratory for Advanced Materials Processing of Ministry of Education University of Science and Technology BeijingBeijing 100083China School of Mechanical and Electrical Engineering Xinjiang Institute of EngineeringUrumqi 830023China

As a mathematical analysis method,fractal analysis can be used to quantitatively describe irregular shapes with self-similar or self-affine *** analysis has been used to characterize the shapes of metal materials at various scales and *** methods make it difficult to quantitatively describe the relationship between the regular characteristics and properties of metal material surfaces and ***,fractal analysis can be used to quantitatively describe the shape characteristics of metal materials and to establish the quantitative relationships between the shape characteristics and various properties of metal *** the perspective of two-dimensional planes and three-dimensional curved surfaces,this paper reviews the current research status of the fractal analysis of metal precipitate interfaces,metal grain boundary interfaces,metal-deposited film surfaces,metal fracture surfaces,metal machined surfaces,and metal wear *** relationship between the fractal dimensions and properties of metal material surfaces and interfaces is *** from three perspectives of fractal analysis,namely,research scope,image acquisition methods,and calculation methods,this paper identifies the direction of research on fractal analysis of metal material surfaces and interfaces that need to be *** is believed that revealing the deep influence mechanism between the fractal dimensions and properties of metal material surfaces and interfaces will be the key research direction of the fractal analysis of metal materials in the future.

关键词： metal material surfaces and interfaces fractal analysis fractal dimension homogeneity

A Multi-Objective Particle Swarm Optimization Algorithm Based on Decomposition and Multi-Selection Strategy

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Computers, Materials & Continua 2025年第1期82卷 997-1026页

作者： Li Ma Cai dai Xingsi Xue Cheng Peng School of Computer Science Shaanxi Normal UniversityXi’an710119China Fujian Provincial Key Laboratory of Big Data Mining and Applications Fujian University of TechnologyFuzhou350118China Information Construction and Management Center and Institute of Artificial Intelligence and Educational New Productivity Ningxia Normal UniversityGuyuan756099China

The multi-objective particle swarm optimization algorithm(MOPSO)is widely used to solve multi-objective optimization *** the article,amulti-objective particle swarm optimization algorithmbased on decomposition and multi-selection strategy is proposed to improve the search ***,two update strategies based on decomposition are used to update the evolving population and external archive,***,a multiselection strategy is *** first strategy is for the subspace without a non-dominated *** the neighbor particles,the particle with the smallest penalty-based boundary intersection value is selected as the global optimal solution and the particle far away fromthe search particle and the global optimal solution is selected as the personal optimal solution to enhance global *** second strategy is for the subspace with a non-dominated *** the neighbor particles,two particles are randomly selected,one as the global optimal solution and the other as the personal optimal solution,to enhance local *** third strategy is for Pareto optimal front(PF)discontinuity,which is identified by the cumulative number of iterations of the subspace without non-dominated *** the subsequent iteration,a new probability distribution is used to select from the remaining subspaces to ***,an adaptive inertia weight update strategy based on the dominated degree is designed to further improve the search ***,the proposed algorithmis compared with fivemulti-objective particle swarm optimization algorithms and five multi-objective evolutionary algorithms on 22 test *** results show that the proposed algorithm has better performance.

关键词： Multi-objective optimization multi-objective particle swarm optimization decomposition multi-selection strategy