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Journal of Magnesium and Alloys 2024年第1期12卷 225-236页

作者： Shuo wang Daokui Xu dongliang wang Zhiqiang Zhang Baojie wang Key Lab of Electromagnetic Processing of Materials Ministry of EducationNortheastern UniversityShenyang110819China Key Laboratory of Nuclear Materials and Safety Assessment Institute of Metal ResearchChinese Academy of SciencesShenyang110016China Engineering Research Center of Advanced Materials Preparing Technology Ministry of EducationNortheastern UniversityShenyang110819China School of Environmental and Chemical Engineering Shenyang Ligong UniversityShenyang110159China Binzhou Institute of Technology BinzhouShandong Province256606China Shandong Key Laboratory of Advanced Aluminium Materials and Technology BinzhouShandong Province256606China

Through exploring the stress corrosion cracking(SCC)behaviors of the as-cast Mg-8%Li and Mg-8%Li-6%Zn-1.2%Y alloys in a 0.1 M NaCl solution,it revealed that the SCC susceptibility index(I_(SCC))of the Mg-8%Li alloy was 47%,whilst the I_(SCC)of the Mg-8%Li-6%Zn-1.2%Y alloy was 68%.Surface,cross-sectional and fractography observations indicated that for the Mg-8%Li alloy,theα-Mg/β-Li interfaces acted as the preferential crack initiation sites and propagation paths during the SCC process.With regard to the Mg-8%Li-6%Zn-1.2%Y alloy,the crack initiation sites included the I-phase and the interfaces of I-phase/β-Li andα-Mg/β-Li,and the preferential propagation paths were the I-phase/β-Li andα-Mg/β-Li interfaces.Moreover,the SCC of the two alloys was concerned with hydrogen embrittlement(HE)mechanism.

关键词： Magnesium-lithium alloy Stress corrosion cracking I-phase Fracture analysis

Proteins:Neglected active ingredients in edible bird’s nest

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Chinese Herbal Medicines 2023年第3期15卷 383-390页

作者： Man Yuan Xiaoxian Lin dongliang wang Jianye Dai Hebei Edible Bird's Nest Fresh Stew Technology Innovation Center Langfang 065700China School of Pharmacy Lanzhou UniversityLanzhou 730000China

Edible bird’s nest(EBN)is a kind of natural invigorant with a long history of consumption in Asia,especially in China.EBN is formed by mixing the saliva of swiftlets(Aerodramus)with feathers and other components during the breeding season.Proteins are the most important nutrient in EBN.By studying proteins in EBN,we can not only elucidate their components at the molecular level,but also study their bioactivities.Therefore,it is of great significance to study the proteins in EBN.Previous research on the proteins in EBN was preliminary and cursory,and no one has summarized and analyzed the proteins in EBN and correlated the bioactivities of these proteins with the biological functions of EBN.This article focused on the proteins in EBN,listed the proteins identified in different proteomic studies,and introduced the sources,structures and bioactivities of the most frequently identified proteins,including acidic mammalian chitinase,lysyl oxidase homolog 3,mucin-5AC,ovoinhibitor,nucleobindin-2,calciumbinding protein(MW:4.5×10~4)and glucose-regulated protein(MW:7.8×10~4).The properties of these proteins are closely related to the bioactivities of EBN.Therefore,this article can provide inspiration for further research on the efficacy of EBN.

关键词： acidic mammalian chitinase bioactivityedible bird’s nest lysyl oxidase homolog 3 mucin-5AC proteins

Exploring Antarctic subglacial lakes with RECoverable Autonomous Sonde(RECAS): Design and first field tests

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Science China Technological Sciences 2024年第6期67卷 1866-1878页

作者： SUN YouHong PAVEL Talalay LI YuanSheng YU HaiBin wang dongliang LI GuoPing XU LiPing GONG Da wang JiXin wang JianHua wang Ting ZHANG Nan wang ZhiGang CHEN YanJi LIU YunChen LI YaZhou PENG ShiLin SHI JianGuang AN ChunLei GE Qun XU Jing NI XiaoKang CUI QiFeng JIANG Qiang MIKHAIL Sysoev Yang Yang wang RuSheng WEI XianZhe wang Yu ZHU TianXin DENG ZhiPeng ALEXEY Markov LI Bing FAN XiaoPeng Polar Research Center Jilin University School of Engineering and Technology China University of Geosciences Polar Research Institute of China College of Electronics and Information Hangzhou Dianzi University Aerospace System Engineering Shanghai Nanjing Institute of Astronomical Optics & Technology National Astronomical ObservatoriesChinese Academy of Sciences National Ocean Technology Center

Conducting scientific drilling on subglacial lakes and obtaining samples of subglacial lake water holds great significance in unraveling the formation and evolution of Antarctic subglacial lakes and early Earth's life forms. Despite various approaches to access and directly sample subglacial water and sediments, clean access and exploration of subglacial lakes remain challenging.To address this concern, Jilin University has developed the RECoverable Autonomous Sonde(RECAS) prototype. This technology enables sampling and in-situ detection of subglacial lake water while being isolated from the surface, thus minimizing the risk of pollution. Laboratory tests, including downward and upward drilling, long-running, remote-control, and cold-environment assessments, were conducted to validate the sonde's principle and functionality. During the 38th Chinese National Antarctic Research Expedition, CHINARE(2021–2022 season), the RECAS prototype underwent testing on the flank region of D?lk glacier, 10 km from Zhongshan Station in Antarctica. Three boreholes with depths of 200.3, 183.2, and 133.5 m were successfully drilled, with the refrozen meltwater sealing the boreholes during the process. Approximately 600 mL of melted water samples were collected from each hole. Throughout the drilling tests, all systems of the RECAS prototype performed within the expected ranges.

关键词： subglacial lake thermal drilling water sampling Antarctic autonomous sonde

Effects of Ulva prolifera dissipation on the offshore environment based on remote sensing images and field monitoring data

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Acta Oceanologica Sinica 2023年第6期42卷 112-120页

作者： Longxiao Zheng Mengquan Wu Jie Zhao Shaopeng Luan dongliang wang Wei Jiang Mingyue Xue Jiayan Liu Yating Cui College of Resources and Environmental Engineering Ludong UniversityYantai 264039China Yantai Geographic Information Center Yantai 264025China Yantai Marine Environment Monitoring and Forecasting Center Yantai 264040China

Outbreaks of Ulva prolifera have continued in the South Yellow Sea of China(SYS)since 2007,becoming a serious marine ecological disaster.Large amounts of U.prolifera drift to the coast of the Shandong Peninsula to dissipate under the action of southeast monsoons and ocean surface currents.This causes serious harm to the ecological environment and economic activities of coastal cities.To investigate the impact of U.prolifera dissipation,this study extracted the spatiotemporal distribution of U.prolifera in the SYS from 2012 to 2020 based on the Google Earth Engine.The outbreak cycle of U.prolifera was determined by fitting analysis of outbreak time and coverage area through MATLAB.This study also looked at the effect of U.prolifera dissipation on water quality through field monitoring data.The results showed that the growth curve of the U.prolifera has a significant Gaussian distribution.The U.prolifera dissipates in Haiyang,China,in July and August every year and affects the offshore environment.Water quality parameters of seawater at different depths had significant differences after the U.prolifera dissipation.Changes in pH,chemical oxygen demand,nitrite nitrogen,nitrate nitrogen,ammonia nitrogen,chlorophyll a,total phosphorus,and suspended solids were more significant in surface seawater than in deeper water.Changes in the concentrations of dissolved oxygen and total nitrogen were more significant in the deep seawater(1.63 and 1.1 times higher than those in the surface seawater,respectively).The dissipation of U.prolifera releases a large amount of carbon and nitrogen into the seawater,which provides rich nutrients for phytoplankton and may cause secondary disasters such as red tide.These findings are useful for further understanding the rules of U.prolifera dissipation,as well as preventing and controlling green tide disasters.

关键词： Ulva prolifera dissipation South Yellow Sea Google Earth Engine water quality remote sensing

Migration capacity of human umbilical cord mesenchymal stem cells towards glioma in vivo

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Neural Regeneration Research 2013年第22期8卷 2093-2102页

作者： Cungang Fan dongliang wang Qingjun Zhang Jingru Zhou Department of Neurosurgery Peking University People's Hospital

High-grade glioma is the most common malignant primary brain tumor in adults. The poor prognosis of glioma, combined with a resistance tQ currently available treatments, necessitates the develop- ment of more effective tumor-selective therapies. Stem cell-based therapies are emerging as novel cell-based delivery vehicle for therapeutic agents. In the present study, we successfully isolated human umbilical cord mesenchymal stem cells by expiant culture. The human umbilical cord mes- enchymal stem cells were adherent to plastic surfaces, expressed specific surface phenotypes of mesenchymal stem cells as demonstrated by flow cytometry, and possessed multi-differentiation potentials in permissive induction media in vitro. Furthermore, human umbilical cord mesenchymal stem cells demonstrated excellent glioma-specific targeting capacity in established rat glioma models after intratumoral injection or contralateral ventricular administration in vivo. The excellent glioma-specific targeting ability and extensive intratumoral distribution of human umbilical cord mesenchymal stem cells indicate that they may serve as a novel cellular vehicle for delivering therapeutic molecules in glioma therapy.

关键词： neural regeneration umbilical cord mesenchymal stem cell glioma migration cell-based therapy grants-supported paper neuroregeneration

面向高等教育教师的数据素养分析框架开发和评估:结构方程建模方法

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西南大学学报（自然科学版） 2024年第3期46卷 178-188页

作者：王东亮韩冰姚健无锡职业技术学院图书馆江苏无锡214121 江南大学人工智能与计算机学院江苏无锡214122

随着信息和通信技术的快速发展,教师数据素养已成为现代教育领域的一个重要趋势.该文基于高等教育教师数据素养的现状和需求,提出一种基于结构方程建模方法的教师数据素养分析框架,旨在探索一种可行的方法来提高教师数据素养水平.通过... 详细信息

随着信息和通信技术的快速发展,教师数据素养已成为现代教育领域的一个重要趋势.该文基于高等教育教师数据素养的现状和需求,提出一种基于结构方程建模方法的教师数据素养分析框架,旨在探索一种可行的方法来提高教师数据素养水平.通过研究教师的技术整合自我效能感、技术知识水平、对技术的态度以及使用社交网络的目的与他们数据素养水平之间的关系,阐明和分析了数据素养水平与这些变量之间的关系.使用结构方程模型对来自415名教师的数据进行分析,查看变量之间的相关性,并确定哪些预测因素对教师数据素养能力影响最大.同时,通过对定量数据结果进行分析,验证和评估该文所提出的分析框架.采用关系筛选模型,在研究结果审查的模型中检测到教师的技术整合自我效能感是最重要的变量,对数据素养水平的预测具有重要影响.该文结果有助于指导并提升教师数据素养水平,达到提高教育教学质量和效果的目的.

关键词：数据素养分析框架结构方程模型影响因素高等教育教师

Treatment of coking wastewater using oxic-anoxic-oxic process followed by coagulation and ozonation

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Carbon Resources Conversion 2019年第2期2卷 151-156页

作者： Jianbing wang Yuxian Ji Fengyuan Zhang dongliang wang Xuwen He Chunrong wang School of Chemical and Environmental Engineering China University of Mining and Technology-BeijingBeijing 100083China

An oxic-anoxic-oxic(O-A-O)system followed by coagulation and ozonation processes was used to study the treatment of coking wastewater.In the O-A-O process,the removals of NH4+-N,total nitrogen and COD were 91.5-93.3%,91.3-92.6%and 89.1-93.8%,respectively when employing hydraulic residence times of 60 h for the biochemical system.High removal of NH4+-N was obtained due to the placement of an aerobic tank in front of A-O system which can mitigate the inhibitory effect of toxic compounds in coking wastewater on nitrifying bacteria.Addition of methanol into the anoxic reactor greatly increased the removal of total nitrogen,indicating that denitrifiers can hardly use organic compounds in coking wastewater as carbon source for denitrification.COD values of the effluent from the O-A-O system were still higher than 260 mg/L even with a prolonged time of 160 h mainly due to the high refractory properties of residual compounds in the effluent.The subsequent coagulation and ozonation processes resulted in the COD removal of 91.5%-93.3%and reduced the relative abundance of large molecular weight(MW)organics(>1 kDa)from 55.8%to 20.93%with the ozone,PAC and PAM dosages of 100,150 and 4 mg/L respectively.Under these conditions,the COD value and concentration of polycyclic aromatic hydrocarbons in the final effluent were less than 80 and 0.05 mg/L,respectively,which meet the requirement of the Chinese emission standard.These results indicate that the combined technology of O-A-O process,coagulation and ozonation is a reliable way for the treatment of coking wastewater.

关键词： Coking wastewater Activated sludge process Coagulation Ozonation Nitrification-denitrification

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城市道路工程中半柔性抗车辙路面技术研究

科学技术创新 2024年第16期 167-170页

作者：王东良山东港通工程管理咨询有限公司山东烟台

为了提升城市道路工程的耐久性和行车安全性,本文通过介绍半柔性抗车辙路面技术的结构设计、施工流程、封边处理与水泥基灌浆灌注等关键技术环节,分析了该技术在抗车辙性能、平整度保持以及使用寿命延长等方面的优势。同时,本文提出了... 详细信息

为了提升城市道路工程的耐久性和行车安全性,本文通过介绍半柔性抗车辙路面技术的结构设计、施工流程、封边处理与水泥基灌浆灌注等关键技术环节,分析了该技术在抗车辙性能、平整度保持以及使用寿命延长等方面的优势。同时,本文提出了针对半柔性路面施工过程中的质量控制要点和性能监测方法,为工程实践提供了理论支持和技术指导。研究结果表明,半柔性抗车辙路面技术能够有效提高城市道路的使用性能,减少车辙等病害的发生,具有广阔的应用前景和推广价值。

关键词：城市道路半柔性抗车辙路面技术

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电力物联网技术在配电设备在线监测中的应用

电力系统装备 2024年第5期 52-53,120页

作者：王栋梁太原龙为电子科技有限公司山西太原030006

电力物联网技术在配电设备在线监测中的应用具有重要意义,为我国电力行业带来了显著效益。通过提高配电设备的在线监测效果,可保证电力系统安全可靠运行,推动电网发展。因此,电力企业应充分认识到电力物联网技术在配电设备在线监测中的... 详细信息

电力物联网技术在配电设备在线监测中的应用具有重要意义,为我国电力行业带来了显著效益。通过提高配电设备的在线监测效果,可保证电力系统安全可靠运行,推动电网发展。因此,电力企业应充分认识到电力物联网技术在配电设备在线监测中的应用价值,加大技术研发力度,推动电力物联网技术在配电设备在线监测领域的广泛应用。文章对电力物联网技术在配电设备在线监测中的应用及其重要性进行了详细探讨。

关键词：电力物联网配电设备在线检测

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煤矿井下带式输送机用巡检机器人系统研究

煤炭技术 2024年第4期43卷 275-277页

作者：王东亮国家能源集团榆林能源有限责任公司陕西榆林719315

为了保证带式输送机正常运行,需要频繁对带式输送机进行人工巡检,发现问题及时处理,这样才能减少事故的隐患。人工巡检需要增加工作量同时也容易出错,因此在煤矿井下使用巡检机器人代替人工进行巡检是一种很好的方案。目前国内外对这巡... 详细信息

为了保证带式输送机正常运行,需要频繁对带式输送机进行人工巡检,发现问题及时处理,这样才能减少事故的隐患。人工巡检需要增加工作量同时也容易出错,因此在煤矿井下使用巡检机器人代替人工进行巡检是一种很好的方案。目前国内外对这巡检机器人相关的研究还处于起步阶段,在应用领域、使用场景上也有很多不足之处。以煤矿井下带式输送机的巡检为背景,对矿用本安型巡检机器人进行必要性研究。

关键词：带式输送机巡检机器人传感器