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Transactions of Nonferrous Metals Society of China 2024年第9期34卷 2733-2742页

作者： Yao-xiang GENG Chun-feng zai Jiang YU hao TANG Hong-wei LÜ Zhi-jie ZHANG School of Materials Science and Engineering Jiangsu University of Science and TechnologyZhenjiang 212100China National Engineering Research Center of Near-Net Shape Forming for Metallic Materials South China University of TechnologyGuangzhou 510640China

In order to enhance the mechanical properties of the selective laser-melted(SLM) high-Mg content AlSiMg1.4 alloy,the Zr element was *** influence of Zr alloying on the processability,microstructure,and mechanical properties of the alloy was systematically investigated through performing microstructure analysis and tensile *** was demonstrated that the SLM-fabricated AlSiMg1.4-Zr alloy exhibited high process stability with a relative density of over 99.5% at various process ***,the strong grain refinement induced by the primary Al3Zr particle during the melt solidification process simultaneously enhanced both the strength and plasticity of the *** values for the yield strength,ultimate tensile strength,and elongation of the SLM-fabricated AlSiMg1.4-Zr were(343±3) MPa,(485±4) MPa,and(10.2±0.2)%,respectively,demonstrating good strengthplasticity synergy in comparison to the AlSiMg1.4 and other Al-Si-based alloys fabricated by SLM.

关键词： selective laser melting process stability grain refinement microstructure mechanical properties

甘草提取物对大鼠体内环孢素药代动力学的影响

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中国临床药理学与治疗学 2011年第9期16卷 971-974页

作者：朱素燕胡毅坚陈江飞徐萍龙再浩宁波市第一医院药剂科宁波市出入境检验检疫局

目的:研究甘草连续给药7 d对环孢素在大鼠体内的药代动力学影响。方法:12只大鼠随机分为生理盐水对照组和甘草实验组,甘草实验组予甘草提取物(0.5 g/kg,1次/d)连续给药7 d,第8天晨两组均予环孢素灌胃给药后按时间点连续采样,采用荧光偏... 详细信息

目的:研究甘草连续给药7 d对环孢素在大鼠体内的药代动力学影响。方法:12只大鼠随机分为生理盐水对照组和甘草实验组,甘草实验组予甘草提取物(0.5 g/kg,1次/d)连续给药7 d,第8天晨两组均予环孢素灌胃给药后按时间点连续采样,采用荧光偏振免疫分析法测定环孢素的血药浓度,计算并比较主要药动学参数。结果:对照组和实验组的环孢素主要药动学参数Cmax、tmax、t1/2、AUC0-48 h、AUC0-∞、平均滞留时间(MRT)、药物清除率(CL/F)、表观分布面积(V/F)差异均无统计学意义(P>0.05)。结论:甘草连续给药7 d后不影响环孢素在大鼠体内的药代动力学。

关键词：甘草提取物环孢素药代动力学相互作用

CrN supported by carbon nanosheets as efficient catalysts toward oxygen reduction reaction and Zn-air batteries

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Rare Metals 2024年第10期43卷 4973-4981页

作者： Ya-Ting Zhang Fan Zhang Zhe Lu Jun-Ming Luo Su-Yang Feng Qi Wang Hui Chen hao-Ming Wu Zheng-Pei Miao Bin Chi Neng Yu Cheng-Hang You Jing Li Xin-long Tian School of Chemistry and Chemical Engineering School of Marine Science and EngineeringHainan Provincial Key Lab of Fine ChemistryHainan University State Power Investment Group Hainan Electric Power Co.Ltd. Key Laboratory of Fuel Cell Technology of Guangdong Province Shenzhen Automotive Research Institute Beijing Institute of Technology State Key Laboratory of Nuclear Resources and Environment East China University of Technology

Exploring non-precious efficient oxygen reduction reaction （ORR） catalysts is of great significance to fuel cells and Zn-air batteries （ZABs）.CrN is a theoretically promising ORR catalyst,but its potential needs to be unlocked by proper supports that provide high conductivity and high exposure of active *** this work,we introduce a novel synthesis of carbon nanosheets-supported CrN nanoparticles （CrN/C） by annealing the mixture of CrCl3,1,10-phenanthroline and melamine via a two-step *** prepared CrN/C materials show good ORR activity and stability in acidic and alkaline *** optimal CrN/C material has an ORR half-wave potential of 0.73 and 0.72 V （*** hydrogen electrode） in acidic and alkaline media,*** it retains 82% and 78% of ORR current density in acidic and alkaline media after durability tests,***,the optimal CrN/C material-based self-breathing ZABs deliver a maximum power density of 168 mW·cm-2,which is one of the highest among transition metal nitrides-based ZABs It is found that the ORR activity of CrN/C materials is highly related to the Cr–N valence *** work highlights the good potential of CrN as robust ORR catalyst and verifies its promising application in ZABs.

关键词： Carbon nanosheets CrN Fuel cells Oxygen reduction reaction Zn-air batteries

LiOH-mediated crystallization regulating strategy enhancing electrochemical performance and structural stability of SiO anodes for lithium-ion batteries

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Nano Research 2024年第9期17卷 8174-8183页

作者： Zhengqiu He Zewen Xu Yu long Jiexin Zhu hao Yang Kuo Chen Qiang Zhou Ning Cao Xiaobo Wang Juan Wang Xiaojie Tan Litao Wang Luhai Wang Shengbao He Mengdi Zhang Han Hu Mingbo Wu State Key Laboratory of Heavy Oil Processing College of Chemistry and Chemical EngineeringChina University of Petroleum(East China)Qingdao 266580China Department of Chemistry National University of Singapore3 Science Drive 3Singapore 117543Singapore School of Chemical Sciences University of AucklandAuckland 1010New Zealand Petrochemical Research Institute Petro China Company Ltd.Beijing 102206China

Silicon monoxide(SiO)is widely recognized as a promising anode material for next-generation lithium-ion *** to its metastable amorphous structure,SiO exhibits a highly complex degree of crystallization at the microscopic level,which significantly influences its electrochemical *** a consequence,accurately regulating the crystallization of SiO,and further establishing the relationship between crystallinity and electrochemical performance are very critical for SiO *** this article,carbon-coated SiO materials with different crystallinity degrees were synthesized using lithium hydroxide monohydrate(LiOH·H_(2)O)as a structural modifier to reveal this ***,moderate amount of LiOH·H_(2)O addition results in the forming of an oxygen-rich shell,which effectively inhibits the inward migration of oxygen atoms on the SiO surface and suppresses volume ***,the crystallinity of SiO will gradually enhance and the crystalline phase appears with increasing the amount of LiOH·H_(2)O,which will generate a deteriorative Li+diffusion *** balancing the above two contradictions,a mass fraction of 1%LiOH·H_(2)O for the additive yielded SiO@C-1,characterized by optimal ***@C-1 demonstrates exceptional long-cycle stability with 74.8%capacity retention after 500 cycles at 1 A·g^(-1).Furthermore,it achieves a capacity retention of 52.2%even at a high density of 5 A·g^(-1).This study first reveals the relationship between SiO crystallinity and electrochemical performance,which efficiently guides the design of high-performance SiO anodes.

关键词： lithium-ion batteries SiO anodes crystallinity regulation high rate long life

葡萄籽提取物对老龄大鼠MDA、GSH-Px、SOD的影响

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癌变．畸变．突变 2007年第4期19卷 328-330页

作者：马中春陈小青龙再浩宁波出入境检验检疫局浙江宁波315012

背景与目的:探讨不同浓度的葡萄籽提取物(GSE)对老龄大鼠抗氧化的作用。材料与方法:取wistar大鼠40只,设葡萄籽提取物0.1、0.5、2.5g/kg3个剂量组和1个溶剂对照组,每组10只,灌胃给予受试物,每天1次,连续60d。于第61d股静脉取血并杀鼠取... 详细信息

背景与目的:探讨不同浓度的葡萄籽提取物(GSE)对老龄大鼠抗氧化的作用。材料与方法:取wistar大鼠40只,设葡萄籽提取物0.1、0.5、2.5g/kg3个剂量组和1个溶剂对照组,每组10只,灌胃给予受试物,每天1次,连续60d。于第61d股静脉取血并杀鼠取肝脏制备肝匀浆,分别测定血清过氧化脂质(MDA)和谷胱甘肽氧化酶(GSH-Px)、肝组织超氧化歧化酶(SOD)。结果:3个剂量组SOD活性与溶剂对照组比较差异均无统计学意义(P>0.05)。仅2.5g/kg剂量组所测的MDA含量和GSH-Px与溶剂对照组比较差异均有统计学意义(P<0.01)。结论:葡萄籽提取物有降低雌性老年大鼠(鼠龄15个月)血清中MDA含量、升高血清中GSH-Px活性的作用,提示其具有一定的抗氧化作用。

关键词：葡萄籽提取物抗氧化作用 MDA GSH-Px SOD

STDNet: A Spatio-Temporal Decomposition Neural Network for Multivariate Time Series Forecasting

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Tsinghua Science and Technology 2024年第4期29卷 1232-1247页

作者： Zhuolun Jiang Zefei Ning hao Miao Li Wang College of Computer Science and Technology(College of Data Science) Taiyuan University of TechnologyJinzhong 030600China

long-term multivariate time series forecasting is an important task in engineering applications. It helps grasp the future development trend of data in real-time, which is of great significance for a wide variety of fields. Due to the non-linear and unstable characteristics of multivariate time series, the existing methods encounter difficulties in analyzing complex high-dimensional data and capturing latent relationships between multivariates in time series, thus affecting the performance of long-term prediction. In this paper, we propose a novel time series forecasting model based on multilayer perceptron that combines spatio-temporal decomposition and doubly residual stacking, namely Spatio-Temporal Decomposition Neural Network (STDNet). We decompose the originally complex and unstable time series into two parts, temporal term and spatial term. We design temporal module based on auto-correlation mechanism to discover temporal dependencies at the sub-series level, and spatial module based on convolutional neural network and self-attention mechanism to integrate multivariate information from two dimensions, global and local, respectively. Then we integrate the results obtained from the different modules to get the final forecast. Extensive experiments on four real-world datasets show that STDNet significantly outperforms other state-of-the-art methods, which provides an effective solution for long-term time series forecasting.

关键词： time series forecasting multivariate time series spatio-temporal decomposition

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宁波口岸德国小蠊对6种杀虫剂的抗药性调查

中华卫生杀虫药械 2017年第1期23卷 88-89页

作者：龙再浩俞雪均倪敏君宁波国际旅行卫生保健中心浙江宁波315012

目的了解宁波口岸德国小蠊的抗药性情况,为口岸蟑螂药物防治提供科学依据。方法使用药膜法测定德国小蠊对6种杀虫剂的半数击倒时间(KT_(50))。结果宁波口岸德国小蠊对6种杀虫剂氯菊酯、高效氯氰菊酯、苯氰菊酯、溴氰菊酯、乙酰甲胺磷、... 详细信息

目的了解宁波口岸德国小蠊的抗药性情况,为口岸蟑螂药物防治提供科学依据。方法使用药膜法测定德国小蠊对6种杀虫剂的半数击倒时间(KT_(50))。结果宁波口岸德国小蠊对6种杀虫剂氯菊酯、高效氯氰菊酯、苯氰菊酯、溴氰菊酯、乙酰甲胺磷、残杀威的抗性倍数分别为5.92、7.54、9.85、2.15、1.56和2.48。结论宁波口岸德国小蠊对多种菊酯类杀虫剂产生了不同程度的抗性,对残杀威和乙酰甲胺磷相对敏感。

关键词：德国小蠊抗药性杀虫剂

构建纺织品安全性毒理学评价体系应对绿色壁垒

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中国卫生工程学 2005年第6期4卷 370-371页

作者：马中春龙再浩陈小青浙江省宁波出入境检验检疫局技术中心宁波315012

近年,我国纺织品出口贸易在欧、美频繁遭遇绿色壁垒,给纺织业带来巨大损失.所谓绿色壁垒,即技术壁垒,是指发达国家为达到保护本国市场的目的,在国际贸易中,以防止破坏生态环境和人类健康为由,通过立法,制定一系列严格的强制性技术标准,... 详细信息

近年,我国纺织品出口贸易在欧、美频繁遭遇绿色壁垒,给纺织业带来巨大损失.所谓绿色壁垒,即技术壁垒,是指发达国家为达到保护本国市场的目的,在国际贸易中,以防止破坏生态环境和人类健康为由,通过立法,制定一系列严格的强制性技术标准,以限制不符合其生态环保标准的国外产品进口.

关键词：绿色壁垒评价体系纺织品安全性毒理学生态环境技术标准出口贸易技术壁垒发达国家

Biological scaffold as potential platforms for stem cells:Current development and applications in wound healing

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World Journal of Stem Cells 2024年第4期16卷 334-352页

作者： Jie-Yu Xiang Lin Kang Zi-Ming Li Song-Lu Tseng Li-Quan Wang Tian-hao Li Zhu-Jun Li Jiu-Zuo Huang Nan-Ze Yu Xiao long Department of Plastic and Reconstructive Surgery Peking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100730China Biomedical Engineering Facility Institute of Clinical MedicinePeking Union Medical College HospitalChinese Academy of Medical SciencesBeijing 100021China

Wound repair is a complex challenge for both clinical practitioners and *** approaches for wound repair have several *** cell-based therapy has emerged as a novel strategy to address this issue,exhibiting significant potential for enhancing wound healing rates,improving wound quality,and promoting skin ***,the use of stem cells in skin regeneration presents several ***,stem cells and biomaterials have been identified as crucial components of the wound-healing *** therapy involving the development of biocompatible scaffolds,accompanying cells,multiple biological factors,and structures resembling the natural extracellular matrix(ECM)has gained considerable *** scaffolds encompass a range of biomaterials that serve as platforms for seeding stem cells,providing them with an environment conducive to growth,similar to that of the *** scaffolds facilitate the delivery and application of stem cells for tissue regeneration and wound *** article provides a comprehensive review of the current developments and applications of biological scaffolds for stem cells in wound healing,emphasizing their capacity to facilitate stem cell adhesion,proliferation,differentiation,and paracrine ***,we identify the pivotal characteristics of the scaffolds that contribute to enhanced cellular activity.

关键词： Stem-cell-based therapy Biological scaffolds Wound healing Extracellular matrix mimicry Cellular activities enhancement Scaffold characteristics

Key processes of carbon cycle and sink enhancement paths in natural wetland ecosystems in China

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Science China Earth Sciences 2024年第8期67卷 2444-2459页

作者： Jinshuai LI Tianxiang hao Meng YANG Guirui YU Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China College of Resources and Environment University of Chinese Academy of SciencesBeijing 100049China

Wetland ecosystems have become one of the long-term solutions for mitigating global climate change due to their strong carbon sequestration ***,the key carbon cycle processes in wetland ecosystems still lack a systematic *** the context of wetland protection and restoration,there is still a lack of consensus on the technical pathways to realize carbon sink multiplication in wetland *** this paper,the key processes of carbon cycle,such as photosynthetic carbon uptake,microbial carbon decomposition and carbon deposition and burial,are sorted out and summarized in four major wetland types,namely,swamp and peat wetlands,river and riparian wetlands,lake and lakeshore wetlands,and estuarine and coastal *** on the key processes of carbon cycle,three technological pathways for carbon sink multiplication are proposed,including,vegetation carbon sequestration and sink enhancement technology,soil carbon emission reduction technology and carbon deposition and burial *** key technologies under each pathway are further *** the carbon sink effects of the carbon sink technologies in different wetland types are qualitatively ***,wetland protection and restoration methods in corresponding regions are given in the light of the regional characteristics of wetlands in *** will provide a scientific basis for the strategy of doubling the carbon sinks of China′s wetland ecosystems.

关键词： Wetlands Carbon cycle Carbon sinks Technology pathways Conservation and restoration