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摩擦:英文版 2023年第11期11卷 2091-2106页

作者： Yongjun ZHOU Yuanya ZHANG Meng LIU yanling wang Junya YUAN Xuehu MEN School of Materials and Energy Lanzhou UniversityLanzhou 730000China State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

Epoxy resin(EP)composites with satisfactory thermal and tribological performance are highly required for engineering moving components.However,the simple addition of fillers leaded to the serious filler agglomeration and limited promotion in tribological properties.In this work,we constructed a new kind of three-dimensional(3D)reduced graphene oxide(RGO)/Si_(3)N_(4) hybrid aerogel for EP composites,which was prepared by a facile hydrothermal self-assembly method followed by freeze-drying technique.As a result,the dispersibility of Si_(3)N_(4) whiskers was greatly improved through wrapping of polydopamine–polyethyleneimine copolymer(PDA–PEI)copolymer and physical spacing of 3D skeleton.Furthermore,benefiting from the synergistic effect of RGO and Si_(3)N_(4)@PDA–PEI in the thermal network,the thermal conductivity of RGO/Si_(3)N_(4) hybrid aerogel(GSiA)–EP increased by 45.4%compared to that of the neat EP.In addition,the friction coefficient and wear rate of GSiA–EP decreased by 83.7%and 35.8%,respectively.This work is significant for opening a tribological performance enhancement strategy though constructing 3D hybrid architecture.

关键词： three-dimensional(3D)hybrid structure reduced graphene oxide(RGO)/Si_(3)N_(4)hybrid aerogel thermal properties tribological properties wear mechanism synergistic effect

Halloysite‒gold core‒shell nanosystem synergistically enhances thermal conductivity and mechanical properties to optimize the wear-resistance of a pheonlic-PBO/PTFE textile composite liner

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摩擦:英文版 2023年第12期11卷 2238-2252页

作者： yanling wang Zhaozhu ZHANG Meng LIU Yaohui HE Peilong LI Junya YUAN Mingming YANG Weimin LIU State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

Polymer-textile liner composites have potential applications in aerospace applications for reducing the abrasion damage of moving parts during operation owing to their self-lubrication,light weight,and high loading capacity.Herein,Au nanoparticles(AuNPs)are successfully loaded into the lumen of halloysite nanotubes(HNTs)to construct an HNTs‒Au peasecod core‒shell nanosystem to optimize the wear resistance of phenolic resin-based poly(p-phenylene benzobisoxazole)(PBO)/polytetrafluoroethylene(PTFE)textile composites.Transmission electron microscope(TEM)characterization reveals that the AuNPs are well-dispersed inside the HNTs,with an average diameter of 6‒9 nm.The anti-wear performance of the HNTs and Au-reinforced PBO/PTFE composites is evaluated using a pin-on-disk friction tester at 100 MPa.Evidently,the addition of HNTs‒Au induces a 27.9%decrease in the wear rate of the composites.Possible anti-wear mechanisms are proposed based on the analyzed results of the worn surface morphology and the cross-section of the tribofilm obtained by focused ion beam transmission electron microscopy.

关键词： textiles composites core‒shell wear halloysite

The remodeling roles of lipid metabolism in colorectal cancer cells and immune microenvironment

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Oncology Research 2022年第5期30卷 231-242页

作者： JIATENG ZHONG JINGYU GUO XINYU ZHANG SHUANG FENG WENYU DI yanling wang HUIFANG ZHU Department of Pathology School of Basic Medical SciencesXinxiang Medical UniversityXinxiang453003China Department of Pathology The First Affiliated Hospital of Xinxiang Medical UniversityXinxiang453100China Department of Anesthesiology The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhou510630China

Lipid is a key component of plasma membrane,which plays an important role in the regulation of various cell biological behaviors,including cell proliferation,growth,differentiation and intracellular signal transduction.Studies have shown that abnormal lipid metabolism is involved in many malignant processes,including colorectal cancer(CRC).Lipid metabolism in CRC cells can be regulated not only by intracellular signals,but also by various components in the tumor microenvironment,including various cells,cytokines,DNA,RNA,and nutrients including lipids.In contrast,abnormal lipid metabolism provides energy and nutrition support for abnormal malignant growth and distal metastasis of CRC cells.In this review,we highlight the remodeling roles of lipid metabolism crosstalk between the CRC cells and the components of tumor microenvironment.

关键词： Lipid metabolism Colorectal cancer Tumor microenvironment(TME)

从“老三门”到“课程统整”:我国教师教育课程制度变迁及未来展望

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教育发展研究 2024年第4期44卷 23-32页

作者：王艳玲华东师范大学课程与教学研究所上海200062

高质量的教师教育课程是高质量教师教育体系的关键要素。论文通过政策文本分析,回顾我国教师教育课程制度变迁历程,反思其内在逻辑,探索改革方向。分析发现,我国教师教育课程制度变迁经历了以“老三门”为主体(建国至上世纪末)、在“老... 详细信息

高质量的教师教育课程是高质量教师教育体系的关键要素。论文通过政策文本分析,回顾我国教师教育课程制度变迁历程,反思其内在逻辑,探索改革方向。分析发现,我国教师教育课程制度变迁经历了以“老三门”为主体(建国至上世纪末)、在“老三门”基础上拓展课程门类(上世纪末至2011年)、基于教师教育课程标准的课程改革(2012年至今)及专业认证背景下的“课程统整”(2017年开启)四个阶段。我国教师教育课程制度变迁高度依赖政府政策推动;教师教育机构习惯于“搭便车”、在原有课程框架的基础上增开课程。我国教师教育课程制度变迁的动力可以归纳为教师专业化运动的推动和高质量教师队伍建设目标的牵引。未来教师教育课程政策供给重点是修订教师教育课程标准,建立基于标准的教师教育课程质量保障体系,引导与激励教师教育课程范式变革,实现教师教育课程改革与基础教育课程改革的合流,推进教师教育课程的数字化转型和优质资源的共建共享。

关键词：教师教育课程课程制度变迁 “老三门” 课程统整

Efficacy of patient-controlled hydromorphone analgesia in those undergoing uterine fibroid artery embolization via the right radial artery

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Journal of Interventional Medicine 2023年第1期6卷 20-23页

作者： Yanli wang Yi Zhao Miao Xu yanling wang Songmei Li Yi Fang Xinwei Han Kai Zhang Department of Interventional Radiology The First Affiliated Hospital of Zhengzhou UniversityZhengzhou450052China Department of Interventional Radiology The Third Affiliated Hospital of Zhengzhou UniversityZhengzhou450052China

Objective: To evaluate the efficacy and safety of patient-controlled analgesia(PCA) with hydromorphone as perioperative analgesia during uterine artery embolization(UAE) via the right radial artery.Patients and methods: A total of 33 patients with uterine fibroids, who underwent UAE at the authors’ hospital between June 2021 and March 2022, were selected. Hydromorphone(10 mg) was dispensed into a 100 ml PCA pump with normal saline. Pump administration was initiated 15 min before the start of the procedure, and the intraoperative dose was adjusted according to patient pain level. A numerical rating scale was used to evaluate pain immediately after embolization, 5 min after embolization, at the end of the procedure, and 6, 12, 24, 48, and 72 h after the procedure. Side effects were also observed.Results: Thirty-three patients underwent uterine artery embolization via the right radial artery. Patient pain was well controlled at all time points surveyed, and patients reported satisfaction with analgesia. The median length of hospital stay was 5 days. There were 7 cases of adverse reactions, but no serious side effects were observed.Conclusion: Patients reported positive experiences with arterial embolization of uterine fibroids via the right radial artery. Hydromorphone PCA effectively controlled pain. The PCA pump is easy to operate, has a low incidence of adverse reactions, and offers economic benefits at the patient and institutional levels.

关键词： Uterine leiomyoma Uterine artery embolization(UAE) Radial artery Analgesia Hydromorphone

Flow synthesis of a novel zirconium-based UiO-66 nanofiltration membrane and its performance in the removal of p-nitrophenol from water

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Frontiers of Chemical Science and Engineering 2020年第4期14卷 651-660页

作者： Feichao Wu yanling wang Xiongfu Zhang State Key Laboratory of Fine Chemicals School of Chemical EngineeringDalian University of TechnologyDalian 116024China

In this work,a thin zirconium-based UiO-66 membrane was successfully prepared on an alumina hollow fiber tube by flow synthesis,and was used in an attempt to remove p-nitrophenol from water through a nanofiltration process.Two main factors,including flow rate and synthesis time,were investigated to optimize the conditions for membrane growth.Under optimal synthesis conditions,a thin UiO-66 membrane of approximately 2 um in thickness was fabricated at a flow rate of4 mL.h for 30 h.The p-nitrophenol rejection rate for the as-prepared UiO-66 membrane applied in the removal of p-nitrophenol from water was only 78.1%due to the existence of membrane defects caused by coordinative defects during membrane formation.Post-synthetic modification of the UiO-66 membrane was carried out using organic linkers with the same flow approach to further improve the nanofiltration performance.The result showed that the p-nitrophenol rejection for the post-modified membrane was greatly improved and reached over 95%.Moreover,the post-modified UiO-66 membrane exhibited remarkable long-term operational stability,which is vital for practical application.

关键词： UiO-66 membrane flow synthesis nanofiltra-tion p-nitrophenol removal

Boosting energy storage performance of low-temperature sputtered CaBi_(2)Nb_(2)O_(9) thin film capacitors via rapid thermal annealing

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Journal of Advanced Ceramics 2021年第3期10卷 627-635页

作者： Jing YAN yanling wang Chun-Ming wang Jun OUYANG Key Laboratory for Liquid–Solid Structural Evolution and Processing of Materials(Ministry of Education) School of Materials Science and EngineeringShandong UniversityJinan 250061China Institute of Advanced Energy Materials and Chemistry School of Chemistry and Chemical EngineeringShandong Provincial Key Laboratory of Molecular EngineeringQilu University of Technology(Shandong Academy of Sciences)Jinan 250353China College of Physics and Electronic Engineering Qilu Normal UniversityJinan 250013China Amperex Technology Limited Ningde 352100China School of Physics State Key Laboratory of Crystal MaterialsShandong UniversityJinan 250100China

CaBi_(2)Nb_(2)O_(9) thin film capacitors were fabricated on SrRuO_(3)-buffered Pt(111)/Ti/Si(100)substrates by adopting a two-step fabrication process.This process combines a low-temperature sputtering deposition with a rapid thermal annealing(RTA)to inhibit the grain growth,for the purposes of delaying the polarization saturation and reducing the ferroelectric hysteresis.By using this method,CaBi_(2)Nb_(2)O_(9) thin films with uniformly distributed nanograins were obtained,which display a large recyclable energy density Wrec≈69 J/cm^(3) and a high energy efficiencyη≈82.4%.A superior fatigue-resistance(negligible energy performance degradation after 10^(9) charge-discharge cycles)and a good thermal stability(from-170 to 150℃)have also been achieved.This two-step method can be used to prepare other bismuth layer-structured ferroelectric film capacitors with enhanced energy storage performances.

关键词： bismuth layer-structured ferroelectrics(BLSFs) calcium bismuth niobate(CaBi_(2)Nb_(2)O_(9)) nanograin films rapid thermal annealing(RTA) energy storage fatigue-resistance

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基于理论力学的旋耕机核心结构布局研究

农机化研究 2024年第3期46卷 110-113,119页

作者：王燕玲山西工程职业学院太原030009

针对现有的旋耕机作业效率和作业水平较低、作业效果无法达到农民要求的问题,基于理论力学对旋耕机的核心结构布局进行了设计与分析。旋耕机的主要组成包括机架、传动系统、电源和动力装置、旋耕刀和工作部件、避障系统、耕深调节装置... 详细信息

针对现有的旋耕机作业效率和作业水平较低、作业效果无法达到农民要求的问题,基于理论力学对旋耕机的核心结构布局进行了设计与分析。旋耕机的主要组成包括机架、传动系统、电源和动力装置、旋耕刀和工作部件、避障系统、耕深调节装置及悬挂装置。为了保证旋耕机在作业过程中的动力匹配,通过建立旋耕机各部件的功耗数学模型,以优化旋耕机的结构和运动参数,提升旋耕机的作业性能。为了验证旋耕机的性能,对其进行机械作业性能测试,结果表明:旋耕机的作业效果良好,最终确定的旋耕机的基本性能参数合理。

关键词：旋耕机理论力学核心结构布局功耗数学模型机械作业性能

Recovery of fertility in quinestrol-treated or diethylstilbestroltreated mice:Implications for rodent management

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Integrative Zoology 2017年第3期12卷 250-259页

作者： Ming LIU Rongcan LUO Hao wang Guangming CAO yanling wang State Key Laboratory of Stem Cell and Reproductive Biology Institute of ZoologyChinese Academy of SciencesBeijingChina University of the Chinese Academy of Sciences BeijingChina

Fertility control is an alternative strategy to traditional culling for the management of rodent pests.Previous studies have demonstrated that quinestrol is a potential contraceptive for male rodents,but the recovery of fertility in quinestrol-treated rodents has not been evaluated.This study used C57BL/6J mice to evaluate the recovery rate of male fertility after the administration of quinestrol.Diethylstilbestrol(DES),a non-steroid estrogenic compound,was used for comparison.Different groups of mice were treated with 1 mg/kg quinestrol,1 mg/kg DES,or castor oil separately for 7 days.These mice were then killed on days 8,22 and 50 respectively.Our results indicated that the weight of epididymides and seminal vesicles decreased significantly on days 8 and 22 in quinestrol/DES-treated mice,with extensive histological changes in the seminiferous tubules.Sperm concentrations in the cauda epididymal fluid were significantly reduced on days 8 and 22 in both quinestrol and DES treatment groups and on day 50 for the DES,but not the quinestrol group.Further analysis revealed that DES-treated mice exhibited a higher proportion of abnormal sperm accumulation in the epididymis,indicating that the normal sperm transportation to the cauda epididymis was blocked.Our results indicate that the anti-fertility effects on male mice given quinestrol were of shorter duration than for those receiving DES at the dose of 1 mg/kg body weight.

关键词： diethylstilbestrol male infertility quinestrol recovery of fertility rodent fertility control

多品种电力市场交易下负荷聚合商投标策略及市场均衡分析

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电力系统自动化 2024年第4期48卷 111-122页

作者：王鹏贺焕然伏凌霄王雁凌戴尧华北电力大学电气与电子工程学院北京市102206 内蒙古电力营销服务公司内蒙古自治区呼和浩特市010010

中国新型电力系统建设正面临灵活资源短缺等问题,亟须发挥负荷侧调节能力。随着电网与负荷双向交互越发频繁,更多负荷聚合商通过整合辖区灵活资源参与市场交易,导致以往由发电侧占主导的市场均衡被打破。为研究多主体负荷聚合商博弈策略... 详细信息

中国新型电力系统建设正面临灵活资源短缺等问题,亟须发挥负荷侧调节能力。随着电网与负荷双向交互越发频繁,更多负荷聚合商通过整合辖区灵活资源参与市场交易,导致以往由发电侧占主导的市场均衡被打破。为研究多主体负荷聚合商博弈策略,构建了能量-备用电力市场下负荷聚合商双层投标模型,并引入多场景描述非决策者投标不确定性对市场均衡的影响。通过强平稳算法(SSM)将多个双层模型转化为带均衡约束的均衡问题(EPEC)模型,并采用大M法、二进制展开法等线性化方法进行线性化。算例结果验证了模型及求解算法的合理性和有效性,表明基于EPEC模型的负荷聚合商最优投标策略更加契合实际市场规则,有助于系统优化负荷曲线,缓解灵活资源供需紧张。

关键词：负荷聚合商多品种电力交易投标策略双层优化市场均衡强平稳算法