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A cellulose-based lithium-ion battery separator with regulated ionic transport and high thermal stability for extreme environments

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Nano Research 2025年第1期18卷 315-322页

作者： Kun-Peng Yang song Xie Zi-Meng Han Hao-Cheng Liu Chong-Han Yin Wen-Bin Sun Zhang-Chi ling Huai-Bin Yang De-Han Li Qing-Fang guan Shu-Hong Yu Department of Chemistry New Cornerstone Science LaboratoryInstitute of Biomimetic Materials&ChemistryAnhui Engineering Laboratory of Biomimetic MaterialsDivision of Nanomaterials&ChemistryHefei National Research Center for Physical Sciences at the MicroscaleUniversity of Science and Technology of ChinaHefei 230026China Institute of Innovative Materials Department of Materials Science and EngineeringDepartment of ChemistrySouthern University of Science and TechnologyShenzhen 518055China

Separators play a critical role in lithium-ion ***,the restrictions of thermal stability and inferior electrical performance in commercial polyolefin separators significantly limit their applications under harsh ***,we report a cellulose-assisted self-assembly strategy to construct a cellulose-based separator massively and *** an ultrahigh ionic conductivity in electrolytes of 3.7 mS·cm^(-1) and the ability to regulate ion transport,the obtained separator is a promising alternative for high-performance lithium-ion *** addition,integrated with high thermal stability,the cellulose-based separator endows batteries with high safety at high temperatures,greatly expanding the application scenarios of energy storage devices in extreme environments.

关键词： lithium-ion batteries bio-inspired materials battery separators cellulose nanofiber ultrahigh ionic conductivity high safety

Immunotherapies application in active stage of systemic lupus erythematosus in pregnancy:A case report and review of literature

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World Journal of Clinical Cases 2020年第24期8卷 6396-6407页

作者： Zhi-Hui Xiong Hai-Lian guan Xiao-song Cao Hui-ling Zheng Department of Obstetrics Tongde Hospital of Zhejiang ProvinceHangzhou 310012Zhejiang ProvinceChina Department of Medical Clinic Lanxi No.5 Middle SchoolLanxi 321100Zhejiang ProvinceChina Department of Obstetrics The Second Affiliated Hospital of Zhejiang University of Traditional Chinese MedicineHangzhou 310005Zhejiang ProvinceChina

BACKGROUND Pregnancy in the setting of systemic lupus erythematosus can worsen thecondition from the stable to active stage, with quality of life and fertility desirebeing particular concerns. Pregnancy in the active stage of systemic lupuserythematosus (ASLE), although rare and complicated to manage, can be treatedfavorably with immunotherapies ifs used properly. Here we report such a *** SUMMARY A 31-year-old primigravida patient, diagnosed with SLE seven years ago, wasinduced ASLE after a cold at 21 + weeks. The patient’s vital signs on presentationwere normal. Her laboratory exam was remarkable for significant proteinuria,liver and renal dysfunction, and low C3 and C4 levels. Infectious work-up wasnegative. The patient was diagnosed with ASLE. She was given immunosuppressiveagents (methylprednisolone, gamma globulin and azathioprine etc.)and plasma adsorption therapy, monitoring blood pressure every 8 h, fetal heartrate twice a day, and liver and renal function at least twice a week. Successfulmaternal and fetal outcomes are presented *** Child-bearing in ASLE has become more promising, even for this difficult case ofASLE with multiple organ damage. Thorough antepartum counseling, cautiousmaternal-fetal monitoring, and multi-organ function monitoring bymultidisciplinary specialties are keys to favorable pregnancy outcomes.

关键词： Pregnant women Systemic lupus erythematosus Immunotherapies Case report Active stage of systemic lupus erythematosus Literature review

Boosting charge extraction and efficiency of inverted perovskite solar cells through coordinating group modification at the buffer layer/cathode interface

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Nano Research 2025年第1期18卷 415-423页

作者： Zhiqing Liang Ziqiu Ren Ziyu Wang Nan Yan ling Li Bo Zhang Yanlin song College of Chemistry Zhengzhou UniversityZhengzhou 450052China Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education Shaanxi Key Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy Technology School of Materials Science and EngineeringShaanxi Normal UniversityXi’an 710119China Key Laboratory of Green Printing Institute of ChemistryChinese Academy of Sciences(ICCAS)Beijing Engineering Research Center of Nanomaterials for Green Printing TechnologyNational Laboratory for Molecular Sciences(BNLMS)Beijing 100190China

In inverted perovskite solar cells (PSCs),effective modification of the interface between the metalcathode and electron transport layer (ETL) is crucial forachieving high performance and stability. Herein, sulfonatedbathocuproine, commonly known as disodium bathocuproinedisulfonate (BCDS), was employed as a cathode buffer layerto address the interfacial issues at the [6,6]-phenyl-C61-butyricacid methyl ester (PCBM)/Ag interface. BCDS possesses theability to form coordinate bonds with Ag electrodes. Theutilization of the BCDS buffer layer enhanced the chargeextraction capability at the cathode interface whilesimultaneously achieving interfacial defect passivation,improving interfacial contact and increasing the built-in electricfield. Consequently, a power conversion efficiency (PCE) of25.06% was achieved. Furthermore, owing to the excellent filmforminguniformity of BCDS on PCBM, the stability of thedevice was also improved. After storage in dry air for morethan 2000 h, the device maintained 96% of its initial efficiency. This work underscores the remarkable potential of tailoringcoordination groups to enhance charge extraction efficiency at the ETL-cathode interface, unveiling a promising newfrontier in buffer layer development and performance optimization strategies for PSCs.

关键词： perovskite solar cells buffer layer bathocuproine disulfonate coordination group modification electron transport layer(ETL)-cathode interface

Determination of Magnolol and Honokiol by Non-aqueous Capillary Electrophoresis

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Chemical Research in Chinese Universities 2006年第3期22卷 335-338页

作者： TIAN Yi-ling CHEN guan-hua College of Life Science Agricultural University of Hebei Baoding 071001 P. R. China College of Food Science ＆ Technology Agricultural University of Hebei Baoding 071001 P. R. China

Two active principles in traditional Chinese medicine Magnolia officinalis, magnolol and honokiol, were successfully separated by means of nonaqueous capillary electrophoresis. The effect of the composition of a nonaqueous buffer on column efficiency and resolution, and the effect of acid additives on peak shapes were researched. The separation was conducted with a running buffer in a mixture of methanol/aeetonitrile/formamide （ volume ratio ： 1 ： 2 ： 2 ）, in which the concentrations of Tris, acetic acid, and water were 60 retool/L, 0. 04 mmol/L and 5% （ volume fration）, respectively, and the pH^＊（apperent pH） of the running buffer was 8.96. Magnolol and honokiol were separated on baseline within 20 min. The relative standard deviation of the analytes＇ concentrations in the sample is 1.32% for magnolol and 1.60% for honokiol, and the recoveries of the spiked sample are 98.4% for magnolol and 98. 0% for honokiol, respectively.

关键词： Nonaqueous capillary electrophoresis Magnolol Honokiol

GRAMO:geometric resampling augmentation for monocular 3D object detection

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Frontiers of Computer Science 2024年第5期18卷 161-169页

作者： He guan Chunfeng song Zhaoxiang ZHANG School of Artificial Intelligence University of Chinese Academy of SciencesBeijing 100049China Center for Research on Intelligent Perception and Computing State Key Laboratory of Multimodal Artificial Intelligence SystemsInstitute of Automation Chinese Academy of SciencesBeijing 100190China

Data augmentation is widely recognized as an effective means of bolstering model ***,when applied to monocular 3D object detection,non-geometric image augmentation neglects the critical link between the image and physical space,resulting in the semantic collapse of the extended *** address this issue,we propose two geometric-level data augmentation operators named Geometric-Copy-Paste(Geo-CP)and Geometric-Crop-Shrink(Geo-CS).Both operators introduce geometric consistency based on the principle of perspective projection,complementing the options available for data augmentation in monocular ***,Geo-CP replicates local patches by reordering object depths to mitigate perspective occlusion conflicts,and Geo-CS re-crops local patches for simultaneous scaling of distance and scale to unify appearance and *** operations ameliorate the problem of class imbalance in the monocular paradigm by increasing the quantity and distribution of geometrically consistent *** demonstrate that our geometric-level augmentation operators effectively improve robustness and performance in the KITTI and Waymo monocular 3D detection benchmarks.

关键词： 3D detection monocular augmentation geometry

The analysis of the bending stiffness and intensity of cylindrical tubes

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Science China(Technological Sciences) 2007年第3期50卷 268-278页

作者： song YuQuan guan ZhiPing NIE YuQin guan XiaoFang Superplastic and Plastic Research Institute Jilin UniversityChangchun 130025China Department of Engineering Mechanics Institute of Mechanical Science and EngineeringJilin UniversityChangchun 130025China

Based on the mechanics of material,the bending stiffness and intensity of cylin-drical bar and tube are analyzed. By comparing the cylindrical tube whose ratio of outside diameter to internal diameter is 0.7 with the cylindrical bar,it is concluded that when both of them have the same mass,the section stiffness of the cylindrical tube is three times that of the cylindrical bar;when both of them have the same external diameter,the mass of the cylindrical tube is only 1/2 that of the cylindrical bar,but the section stiffness of the cylindrical tube is 3/4 that of the cylindrical bar. By virtue of the elemental elastic-plastic theory,the yield stress of the liquid-filled cylindrical tube is investigated. Due to the incompressibility of liquid and the strain hardening effect of material,the yield stress of the liquid-filled tube is enlarged compared with the hollow tube,thus raising its bending intensity. Under the dy-namic load,compared with the hollow tube,the impact resistance of the liquid-filled tube is also raised due to elastic recovery. Because the hydraulic pressures per-pendicular to the inner surface are identical everywhere,the local stress concen-tration resulting from the ovalisation of the tube would be decreased,and the re-sistance to buckling would be improved.

关键词： bending of cylindrical tube liquid filled stiffness intensity

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三角梅主要品种表型性状分析

热带作物学报 2025年第1期46卷 70-82页

作者：郝晓函关文灵李叶芳宋杰云南农业大学园林园艺学院云南昆明650201 云南省农业科学院花卉研究所/国家观赏园艺工程技术研究中心/云南省花卉育种重点实验室云南昆明650205 吉林省种子管理总站吉林长春130031

三角梅是我国南方重要的木本花卉,品种繁多,但分类比较混乱。本研究以云南引种保存的133个三角梅品种为研究对象,对133个品种的10个数量性状和41个质量性状进行频率分布统计、变异系数计算和多样性指数计算,并进行Q型聚类分析。结果表明... 详细信息

三角梅是我国南方重要的木本花卉,品种繁多,但分类比较混乱。本研究以云南引种保存的133个三角梅品种为研究对象,对133个品种的10个数量性状和41个质量性状进行频率分布统计、变异系数计算和多样性指数计算,并进行Q型聚类分析。结果表明:133个三角梅品种多个性状多样性丰富,数量性状的变异系数范围为19.61%~32.59%,平均值为26.64%,花序总梗长度、花被管宽度、叶柄长度、花序长度的变异系数最高,多样性指数范围为1.69~2.09,平均值为1.92,叶片长度、苞片宽度、叶片宽度、苞片长度的多样性指数最高。质量性状多样性指数为0.17~2.19,多样性指数大于1的质量性状有11个,苞片颜色、花被管颜色多样性指数均大于2,多样性丰富。4个种系的三角梅品种中,巴特三角梅数量性状的多样性指数最高,多样性最丰富,其次是秘鲁三角梅、光叶三角梅,毛叶三角梅的多样性指数最小,多样性较小,但不同种系各有优势性状。51个性状中,有22个性状在种系之间呈现出了显著差异性,此22个性状对三角梅品种识别和类群划分具有重要的参考价值。根据苞片类型、枝刺多少、叶片大小进行聚类,133个三角梅品种可聚为重瓣少刺、重瓣多刺、单瓣少刺小叶、单瓣多刺大叶4类。上述研究结果显示,供试133个三角梅品种的表型性状多样性较高,数量性状变异类型丰富,本研究可为三角梅种质资源的系统评价、品种分类和种质创新提供参考。

关键词：三角梅变异系数多样性分类指标

Recently deepened insights regarding Mg corrosion and advanced engineering applications of Mg alloys

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Journal of Magnesium and Alloys 2023年第11期11卷 3948-3991页

作者： guang-ling song Andrej Atrens Department of Ocean Science and Engineering Southern University of Science and Technology1088 Xueyuan BoulevardShenzhen 518055China The University of Queensland School of Mechanical and Mining EngineeringCentre for Advanced Materials Processing and Manufacturing(AMPAM)St LuciaQld 4072 Australia State Key Laboratory of Physical Chemistry of Solid Surfaces Xiamen University422 S.Siming RdXiamen 361005China

This review summarizes recent insights into the Mg corrosion mechanism, clarifies many critical controversial points regarding the Mg corrosion behaviour, and updates some efforts made to extend the industrial application of Mg alloys. Based on the new understandings gained so far, future research directions are also suggested in the review. This review has the following logic. The first section "1. Scope"is a consolidation of the new understandings or developments regarding the Mg corrosion mechanism and the new applications for Mg alloys. It also highlights some key points for the review. The second section "2. Widely accepted knowledge" briefly summarizes the general understanding of Mg corrosion gained so far, which acts as the foundation for the following sections. The third section "3. Recently deepened insights" mainly briefs on some new insights into Mg corrosion phenomena based on recent findings. Different interpretations on the corrosion behaviours are comprehensively discussed in the fourth section "4. Controversial points" and the conclusions are drawn in the subsection"4.5 Clarified points". Apart from the fundamental understandings, various efforts in the application of Mg alloys are presented in the fifth section "5. New applications". Following the research tendency as indicated in the review, prioritized research areas are suggested in "*** directions". The review is concluded with "7. Concluding remarks" at last.

关键词： Mg Corrosion Hydrogen Anode Intelligentization

形成性评价在职业卫生与职业医学实验教学中应用的效果分析

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农垦医学 2021年第5期43卷 451-454页

作者：李毓王海霞牛强徐上知丁玉松宋关玲胡云华马儒林石河子大学医学院预防医学系新疆石河子832002

目的:探讨形成性评价在职业卫生与职业医学实验教学中的效果,为提高预防医学专业实验教学效果提供理论依据和参考。方法:整群抽取某校预防医学专业2015级68名本科生作为研究对象,随机分为对照组(n=34)采用传统实验教学评价模式和实验组(... 详细信息

目的:探讨形成性评价在职业卫生与职业医学实验教学中的效果,为提高预防医学专业实验教学效果提供理论依据和参考。方法:整群抽取某校预防医学专业2015级68名本科生作为研究对象,随机分为对照组(n=34)采用传统实验教学评价模式和实验组(n=34)采用形成性评价教学模式。结果:实验组学生第二周期在实验态度、实验技能/案例汇报、师生和生生交流及实验报告得分均高于第一周期(P<0.05);实验组学生实验理论、操作及总成绩明显优于对照组学生(P<0.05);实验组学生在学习兴趣、语言表达、团队协作、分析解决问题、撰写实验报告的能力均有所提高(P<0.05),且教学满意度优于对照组(P<0.05)。结论:形成性评价能够显著提高学生的学习能力和职业卫生与职业医学实验教学质量,促进"教学相长",值得在预防医学专业实验教学中应用和推广。

关键词：形成性评价职业卫生与职业医学实验教学