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多星协同卫星遥感技术在湖南平江抽水蓄能电站水土保持监管中的应用

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矿产勘查 2021年第5期12卷 1279-1284页

作者：李国和高国庆左程钟龙李雷娟宋盼盼刘新陈晓枫国网新源控股有限公司北京100761 湖南平江抽水蓄能有限公司湖南岳阳414500 紫光软件系统有限公司北京100084 国网经济技术研究院有限公司北京102209

抽水蓄能电站施工占地范围大,地形复杂,水保监管难度大。而传统水保监测手段主要依靠人工现场调查,耗时耗力,急需引入一种新的技术手段进行抽水蓄能电站水土保持监管。在国家放管服政策实施下,利用以高分系列卫星为主,结合World View遥... 详细信息

抽水蓄能电站施工占地范围大,地形复杂,水保监管难度大。而传统水保监测手段主要依靠人工现场调查,耗时耗力,急需引入一种新的技术手段进行抽水蓄能电站水土保持监管。在国家放管服政策实施下,利用以高分系列卫星为主,结合World View遥感卫星的多星协同技术,对平江抽水蓄能电站施工阶段进行扰动面积、施工道路及水保措施的监测。结果表明,利用多星协同技术进行平江抽水蓄能电站多频次水土保持监管,获取的扰动面积提取精度在95%以上,施工道路长度提取精度在95%以上,宽度提取精度在90%以上,均满足工程需要。此外,多星协同技术能及时发现施工现场水保问题并解决,有效减少安全隐患,保护水土,保障电站施工顺利进行,对抽水蓄能电站安全建设具有一定的指导意义。

关键词：抽水蓄能电站卫星遥感多星协同水土保持湖南

天地一体化技术在平江抽水蓄能电站环水保超标预警管控中的应用研究

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矿产勘查 2022年第1期13卷 146-151页

作者：童慧凌海涛索飞左程钟龙李雷娟刘新宋盼盼余蔚青湖南平江抽水蓄能有限公司湖南岳阳414500 国网新源控股有限公司北京100761 紫光软件系统有限公司北京100084

抽水蓄能电站工程占地范围大,施工周期长,易引起水土流失的环节众多,造成生态环境的破坏,而传统环水保超标管控手段主要依靠人力利用全站仪进行现场测量,无法满足大范围监测需求,亟需引入一种新的技术手段进行环水保超标预警管控。天地... 详细信息

抽水蓄能电站工程占地范围大,施工周期长,易引起水土流失的环节众多,造成生态环境的破坏,而传统环水保超标管控手段主要依靠人力利用全站仪进行现场测量,无法满足大范围监测需求,亟需引入一种新的技术手段进行环水保超标预警管控。天地一体化监测体系集合卫星遥感、无人机及现场核查技术,具有观测范围大、重访周期短,分辨率高等特点,将其应用到平江抽水蓄能电站施工阶段,可实现施工扰动范围合规性分析、施工扰动范围超标管控与溜坡溜渣预警管控。结果表明,天地一体化具有先进性和前瞻性,打破了传统监管手段局限性,提升了环水保管控水平,减少了人员投入和经济损失,起到减员增效的作用。

关键词：天地一体化抽水蓄能电站超标预警

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输电线路周边火灾卫星遥感监测研究与应用

矿产勘查 2021年第8期12卷 1844-1851页

作者：范桂有陈骁航陈闽江李熙翁孙贤高海英刘新宋盼盼国网福建省电力有限公司福建福州350003 国网福建省电力有限公司检修分公司福建福州350013 国网福建省电力有限公司电力科学研究院福建福州350007 紫光软件系统有限公司北京100084

为避免电网跳闸停电事故的发生,提高输电线路山火监测的周期性和全面性,本文利用卫星遥感红外探测地表温度技术对福建省输电线路山火发生概率较大的重点县区开展了山火监测的应用研究,实现全天时全天候、大范围面状火点监测。利用自主... 详细信息

为避免电网跳闸停电事故的发生,提高输电线路山火监测的周期性和全面性,本文利用卫星遥感红外探测地表温度技术对福建省输电线路山火发生概率较大的重点县区开展了山火监测的应用研究,实现全天时全天候、大范围面状火点监测。利用自主构建的FAL模型以可信度≥4和输电线路2 km以内为阈值条件获得输变电周边火点,分析火点与输电线路之间的空间位置关系。结果表明,卫星遥感监测在火点发生时间的确定上与现场巡检结果相一致,位置存在一定偏差,但对于全省输电线路火灾预警提供了基础数据支撑,对于输电线路安全运行具有重要意义。

关键词：输电线路火点卫星遥感 FAL模型

汉黄芩素干预糖尿病脑梗死模型大鼠的神经损伤

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中国组织工程研究 2025年第11期29卷 2327-2333页

作者：王欢欢梁盼盼杨金水贾淑贤赵佳佳陈媛媛薛茜宋爱霞河北北方学院附属第一医院神经内科河北省张家口市075000 河北北方学院附属第一医院老年病科河北省张家口市075000

背景:汉黄芩素是黄芩根中提取的一种黄酮类化合物,既往研究表明汉黄芩素对脑缺血再灌注损伤有保护作用,还能降低糖尿病小鼠的血糖及其并发症,但其在糖尿病脑梗死中的作用及机制还不清楚。目的:探究汉黄芩素对糖尿病脑梗死大鼠神经损伤... 详细信息

背景:汉黄芩素是黄芩根中提取的一种黄酮类化合物,既往研究表明汉黄芩素对脑缺血再灌注损伤有保护作用,还能降低糖尿病小鼠的血糖及其并发症,但其在糖尿病脑梗死中的作用及机制还不清楚。目的:探究汉黄芩素对糖尿病脑梗死大鼠神经损伤的影响,并探究其作用机制。方法:将SD大鼠随机分为6组:对照组、模型组、汉黄芩素低、中、高剂量组和汉黄芩素高剂量+RhoA激活剂组,每组10只。除对照组外,其余组通过腹腔注射链脲佐菌素和大脑中动脉闭塞法构建糖尿病脑梗死大鼠模型,汉黄芩素低、中、高剂量组分别灌胃10,20,40 mg/kg汉黄芩素,汉黄芩素高剂量+RhoA激活剂组灌胃40 mg/kg汉黄芩素并腹腔注射10 mg/kg溶血磷脂酸,对照组和模型组给予等量生理盐水,1次/d,连续7 d。末次给药结束后,各组大鼠进行神经功能缺损评分,检测血糖水平,TTC染色检测脑梗死体积,苏木精-伊红染色观察脑组织病理变化,ELISA试剂盒检测脑组织中肿瘤坏死因子α、白细胞介素6和丙二醛、超氧化物歧化酶水平,Western blot检测脑组织中RhoA、ROCK2蛋白表达。结果与结论:(1)与对照组相比,模型组大鼠神经元结构严重受损,细胞坏死、变性;神经功能缺损评分、血糖水平、脑梗死体积升高(P<0.05);脑组织中肿瘤坏死因子α、白细胞介素6、丙二醛水平升高(P<0.05),超氧化物歧化酶水平下降(P<0.05);脑组织中RhoA、ROCK2蛋白表达升高(P<0.05);(2)与模型组相比,汉黄芩素低、中、高剂量组神经元损伤改善,细胞变性和坏死减少;神经功能缺损评分、血糖水平、脑梗死体积下降(P<0.05);脑组织中肿瘤坏死因子α、白细胞介素6、丙二醛水平下降(P<0.05),超氧化物歧化酶水平升高(P<0.05);脑组织中RhoA、ROCK2蛋白表达下降(P<0.05);(3)与汉黄芩素高剂量组相比,汉黄芩素高剂量+RhoA激活剂组明显抑制糖尿病脑梗死大鼠上述指标的改善(P<0.05)。结果表明:汉黄芩素能够改善糖尿病脑梗死大鼠血糖水平,减轻脑梗死和神经损伤,其作用机制可能与抑制RhoA/ROCK信号通路有关。

关键词：糖尿病脑梗死神经损伤汉黄芩素 Ras同源基因家族成员A Rho相关卷曲螺旋蛋白激酶

Study of the morphology and properties of diamond joints brazed with carbide-reinforced Cu-Sn-Ti filler metal

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China Welding 2022年第3期31卷 53-60页

作者： Cui Bing song Longyu Liu Zhengwei Sun panpan School of Materials Science and Engineering Anhui University of TechnologyMa'anshan 243032China

Cu-Sn-Ti brazing filler is a new type of copper-based brazing filler for brazing diamond tools currently used in industry,but it suffers from poor wear resistance,high brazing temperature and low bond *** paper provides a way to improve the strength of dia-mond-brazed joints by adding zirconium carbide and tungsten carbide reinforcing phase particles to the Cu-Sn-Ti alloy,***-mond particles were attached to Q460 steel using Cu-Sn-Ti composite filler with the addition of the reinforcing phase,and experimental in-struments such as scanning electron microscope,X-ray diffractometer and energy spectrometer were used to investigate the brazed joint per-formance of the composite brazing material for brazing *** results show that the addition of enhanced phase particles resulted in a metallurgical reaction at the joint of the composite brazed diamond,achieving a higher strength joint with no obvious cracks at the interface,while the addition of 15 wt.%WC resulted in excellent wear resistance and the highest hardness at the joint interface.

关键词： brazing diamond tools Cu-Sn-Ti brazing material enhanced phase particles

Aggregation-enhanced theranostics:AIE sparkles in biomedical field

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Aggregate

Aggregate 2020年第1期1卷 80-106页

作者： Miaomiao Kang Zhijun Zhang Nan song Meng Li panpan Sun Xiaohui Chen Dong Wang Ben Zhong Tang Center for AIE Research Shenzhen Key Laboratory of Polymer Science and TechnologyGuangdong Research Center for Interfacial Engineering of Functional MaterialsCollege of Materials Science and EngineeringShenzhen UniversityShenzhenChina Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Optoelectronic EngineeringShenzhen UniversityShenzhenChina Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Department of ChemistryThe Hong Kong University of Science and TechnologyKowloonHong KongChina

Theranostics referring to the ingenious integration of diagnostics and therapeutics has garnered tremendous attention in these years as it provides a promising opportunity for modern personalized and precision *** virtue of the good biocompatibility,outstanding fluorescence property,easy processability and functionalization,promoted photosensitizing efficiency,as well as facile construction of multi-modality theranostics,fluorophores with aggregation-induced emission(AIE)characteristics exhibit inexhaustible and vigorous vitality in the field of *** significant breakthroughs and state-of-the-art progression have been witnessed in the past few *** review highlights the tremendous aggregation-enhanced superiorities of AIE luminogens(AIEgens)in disease theranostics mainly involving diagnostic imaging(fluorescence and room temperature phosphorescence),therapeutic intervention(photodynamic therapy),and feasibility in construction of multi-modality theranostics based on the experimental measurements and theoretical ***,the latest and advanced developments of AIEgens in disease theranostics in the aspect of corresponding strategies to design highly effective AIE-active theranostics through triggering aggregation formation are comprehensively ***,a brief conclusion with the discussion of current challenges and future perspectives in this area is further presented.

关键词： aggregation breakthrough summarized

Investigation of electrical performance of impregnation resin material for superconducting magnet

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Global Energy Interconnection 2018年第5期1卷 552-558页

作者： Yanfang Yang Hongjie Zhang song Li panpan Chen Yongqing Zhao Ming Qiu China Electric Power Research Institute

With the development of superconducting technology, the electrical performance of insulating materials is drawing increasing concern. This paper is devoted to investigating resin materials and aims to test the resin requirements of impregnating procedures and design curing molds. First, the samples are prepared, and then the power-frequency breakdown, lighting surges, relative dielectric constant, and loss angle tangent of the impregnation resin are measured at room temperature and liquid nitrogen temperature. We also present the testing reference for cryogenic and high-voltage insulating materials of superconducting power devices.

关键词： Liquid nitrogen temperature Impregnation resin Electrical performance

Chronic Exposure to Environmentally Relevant Concentrations of Tetracycline Perturbs Gut Homeostasis in Zebrafish

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Environment & Health 2023年第4期1卷 258-269页

作者： panpan Jia Shun Deng Xiaoxing Lin Liyan song Yangqing Wang De-Sheng Pei School of Public Health Chongqing Medical UniversityChongqing 400016China Chongqing Institute of Green and Intelligent Technology Chinese Academy of SciencesChongqing 400714China School of Resources and Environmental Engineering Anhui UniversityHefei 230601China

The prevalence of residual antibiotics is a global threat to human *** is known about the potential health effects of residual antibiotics in freshwater ***,zebrafish were used to explore chronic effects of environmentally relevant concentrations(ERCs)of tetracycline(TC).Although chronic exposure to TC did not significantly alter the body weight of adult zebrafish,the exposed zebrafish parents exhibited substantial changes in gut microbiota composition and a reduced gut-weight ***,male fish exposed to TC showed a significant decline of critical intestinal function-related metabolites(i.e.,triglycerides,glucose,and free fat acid),while this was not observed in females,resulting in *** gut microbial composition of chronically exposed zebrafish parents changed substantially,but the disruption was not transferred to their respective offspring without ***,the perturbation of insulinrelated signaling pathways caused by TC exposure was not attenuated in the zebrafish offspring after removal of TC *** together,our findings suggest that chronic exposure to TC disturbs gut microbial communities and metabolism and exerts chronic effects on the insulin/IGF-1 mediated signaling cascades,implying that exposure to antibiotics not only leads to the selection of resistant microbes but also poses long-term deleterious health risks for the next generation.

关键词： Antibiotics Chronic exposure Gut microbiota Insulin/IGF-1 Sex-dependent

牙源性颈深部多间隙及纵隔脓肿2例并文献复习

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山东大学耳鼻喉眼学报 2024年第3期38卷 93-96+123页

作者：宋攀攀赵玉凤张瑶瑶丁德涛张加夫张辉张瑾吴允刚济宁医学院附属医院耳鼻咽喉头颈外科济宁医学院临床医学院

目的回顾性分析与总结颈深部多间隙脓肿、纵隔脓肿及脓胸的临床诊治经验，以提高临床医生对本病的认识与诊疗水平。方法对牙源性颈深部多间隙及纵隔脓肿患者的临床特点、相关检查、治疗及随访情况进行回顾性分析及文献回顾。结果对2... 详细信息

目的回顾性分析与总结颈深部多间隙脓肿、纵隔脓肿及脓胸的临床诊治经验，以提高临床医生对本病的认识与诊疗水平。方法对牙源性颈深部多间隙及纵隔脓肿患者的临床特点、相关检查、治疗及随访情况进行回顾性分析及文献回顾。结果对2例患者的脓液进行细菌学培养，例1患者胸腔穿刺引流脓液培养出肺炎克雷伯菌，于全麻下行咽后脓肿引流术+胸腔镜下纵膈脓肿切开引流术+经胸腔镜脓胸清除术(双侧)+气管切开术，住院时间共65 d;例2患者脓液细菌药敏检验提示中间链球菌感染，于全麻下行经口脓肿切开引流+胸腔镜下前纵膈脓肿切开引流术+气管切开术，住院37 d。结论重症颈深部多间隙及纵膈脓肿临床上少见，且因其发展迅速，致死率较高，值得引起临床医生重视。脓肿切开引流和联合应用敏感抗生素是本病的主要治疗方法，气管切开是保障术后安全的必要条件，对于减少并发症及改善预后也起到了重要作用。早期诊断、合理应用敏感抗生素和及时切开引流、多学科的协作等是诊治的关键。

关键词：颈深部间隙脓肿纵隔脓肿气管切开牙源性感染