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Leakage Proof,Flame-Retardant,and Electromagnetic Shield Wood Morphology Genetic Composite Phase change Materials for Solar Thermal Energy Harvesting

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Nano-Micro Letters 2024年第10期16卷 99-120页

作者： Yuhui Chen Yang Meng Jiangyu Zhang Yuhui xie Hua Guo Mukun He Xuetao Shi Yi Mei Xinxin Sheng Delong xie Yunnan Provincial Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials The International Joint Laboratory for Sustainable Polymers of Yunnan ProvinceThe Higher Educational Key Laboratory for Phosphorus Chemical Engineering of Yunnan ProvinceFaculty of Chemical EngineeringKunming University of Science and TechnologyKunming 650500People's Republic of China Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter School of Materials and EnergyGuangdong University of TechnologyGuangzhou 510006People's Republic of China Shaanxi Key Laboratory of Macromolecular Science and Technology School of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi'anShaanxi 710072People's Republic of China

Phase change materials(PCMs)offer a promising solution to address the challenges posed by intermittency and fluctuations in solar thermal ***,for organic solid-liquid PCMs,issues such as leakage,low thermal conductivity,lack of efficient solar-thermal media,and flamma-bility have constrained their broad ***,we present an innova-tive class of versatile composite phase change materials(CPCMs)developed through a facile and environmentally friendly synthesis approach,leveraging the inherent anisotropy and unidirectional porosity of wood aerogel(nanowood)to support polyethylene glycol(PEG).The wood modification process involves the incorporation of phytic acid(PA)and MXene hybrid structure through an evaporation-induced assembly method,which could impart non-leaking PEG filling while concurrently facilitating thermal conduction,light absorption,and ***,the as-prepared wood-based CPCMs showcase enhanced thermal conductivity(0.82 W m^(-1)K^(-1),about 4.6 times than PEG)as well as high latent heat of 135.5 kJ kg^(-1)(91.5%encapsula-tion)with thermal durability and stability throughout at least 200 heating and cooling cycles,featuring dramatic solar-thermal conversion efficiency up to 98.58%.In addition,with the synergistic effect of phytic acid and MXene,the flame-retardant performance of the CPCMs has been significantly enhanced,showing a self-extinguishing ***,the excellent electromagnetic shielding of 44.45 dB was endowed to the CPCMs,relieving contemporary health hazards associated with electromagnetic ***,we capitalize on the exquisite wood cell structure with unidirectional transport inherent in the development of multifunctional CPCMs,showcasing the operational principle through a proof-of-concept prototype system.

关键词： Wood PCMs MXene Solar thermal storage and conversion Flame-retardant Electromagnetic shielding

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Microstructure and properties of coarse-grained WC-10Co cemented carbides with different carbon contents during heat treatments

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Rare Metals 2024年第4期43卷 1786-1792页

作者： Yuan-Feng xie Xing-Cheng xie Zhong-Wu Li Rui-Jun Cao Zhong-Kun Lin Qing Li Chen-Guang Lin Powder Metallurgy and Special Materials Research Department General Research Institute for Nonferrous MetalsBeijing100088China

The effects of cryogenic treatment(CT)and tempering-cryogenic treatment(TCT)on the microstructure and properties of coarse-grained WC-10Co cemented carbides with different carbon contents were *** binder phase,WC mean grain sizes,W solubility in the binder,relative magnetic s aturation,densities,hardness,wear resistance and second phase precipitation of cemented carbides with different heat treatments were *** results show that there are significant changes of microstructure and properties in the samples with CT and TCT,especially due to the precipitation of metastable nanoparticles W_(x)Co_(y)C_(z) in the binder during the heat treatments of CT and *** the simultaneous combination of microstructure and nanoparticle-reinforced binder,a dramatically improved combination of hardness and wear resistance of the samples after TCT has been achieved.

关键词： Cryogenic treatment Tempering Coarsegrained cemented carbide Carbon content Nanoparticlereinforced binder

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The Hierarchy of Distribution in Private Law

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Social Sciences in China 2024年第2期45卷 29-48页

作者： xie Hongfei Institute of Law Chinese Academy of Social Sciences

In terms of the theory of the three hierarchies of distribution in economics,private law can be seen as embodying a 2.5th *** distribution confers equal objective rights on all private agents,who acquire subjective rights through de facto and de jure *** legal environment should be conducive to unleashing the energy and creativity of agents,supporting entrepreneurs,safeguarding competitive neutrality and promoting the mobility of factors of production in order to consolidate the material foundation of common *** changes the rules of primary distribution and is an inherent and rightful function of private *** equalizing the strengths and weaknesses of the interactions of private agents,redistribution is better able to promote self-determination and defend human dignity than public ***,it enables private law to achieve the national goals of enhancing social welfare and reducing confrontation in the operation of *** law lies between redistribution and tertiary distribution,occupying the 2.5th *** most typical expression is"interference liability,"i.e.,justified harm inflicted in cases of necessity(Aufopferungshaftung).This includes the expansion of the social liability of profitmaking legal persons,the expansion of tort liability,and the limitation of the return of *** law enables distributive justice to serve as a common basis for the various hierarchies of distribution,incorporating the different values of private law and weighting them differently depending on the *** justice can also help to transform all private law rules into laws of nature,thus highlighting the neutrality of private law.

关键词： private law primary distribution redistribution distributive justice corrective justice liability for justified harm inflicted in cases of necessity

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Comparison of engineering failures and seismic responses of 500 kV transformer-bushing systems in the 2022 Luding earthquake

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Earthquake Engineering and Engineering Vibration 2024年第4期23卷 1029-1041页

作者： Zhu Wang Wu Ming’er xie Qiang Department of Structural Engineering Tongji UniversityShanghai 200092China Key Laboratory of Performance Evolution and Control for Engineering Structures(Tongji University) Shanghai 200092China

Cemented and mechanically clamped types of end fittings(fitting-C and fitting-M)are commonly used in transformer *** the Luding Ms 6.8 earthquake that occurred in China on September 5,2022,all transformer bushings with the two types of end fittings in a 500 kV substation were ***-earthquake field investigations were conducted,and the failures of the two types of bushings were *** elementary simulation models of the transformer-bushing systems were developed to simulate the engineering failures,and further compute their seismic responses for *** results indicate that the hitch lugs of the connection flange are structurally harmful to seismic ***-M can decrease the bending stiffness of the bushing due to the flexible sealing rubber *** it provides a more flexible connection that dissipates energy,the peak accelerations and relative displacements at the top of the bushing are significantly lower than those of the bushing with *** with fitting-C,fitting-M transfers the high-stress areas from the connection flange to the root of the porcelain,so the latter becomes the most vulnerable ***-M increases the failure risk of the low-strength porcelain,indicating the unsuitability of applying it in high-intensity fortification regions.

关键词： transformer bushing end fitting Luding earthquake,engineering failure seismic responses

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The Squeeze & Excitation Normalization Based nnU-Net for Segmenting Head & Neck Tumors

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Chinese Journal of Electronics 2024年第3期33卷 766-775页

作者： Juanying xie Ying PENG Mingzhao WANG School of Computer Science Shaanxi Normal University

Head and neck cancer is one of the most common malignancies in the *** propose SE-nnU-Net by adapting SE(squeeze and excitation) normalization into nnU-Net,so as to segment head and neck tumors in PET/CT images by combining advantages of SE capturing features of interest regions and nnU-Net configuring itself for a specific *** basic module referred to convolution-ReLU-SE is designed for *** the encoder it is combined with residual structure while in the decoder without residual *** loss function combines Dice loss and Focal *** specific data preprocessing and augmentation techniques are developed,and specific network architecture is ***,the deep supervised mechanism is introduced to calculate the loss function using the last four layers of the decoder of *** SE-nnU-net is applied to HECKTOR 2020 and HECKTOR 2021 challenges,respectively,using different experimental *** experimental results show that SE-nnU-Net for HECKTOR 2020 obtained 0.745,0.821,and 0.725 in terms of Dice,Precision,and Recall,respectively,while the SE-nnU-Net for HECKTOR 2021 obtains 0.778 and 3.088 in terms of Dice and median HD95,*** SE-nnU-Net for segmenting head and neck tumors can provide auxiliary opinions for doctors diagnoses.

关键词： Image segmentation Head Data preprocessing Artificial neural networks Network architecture Data models Neck

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WSN Mobile Target Tracking Based on Improved Snake-Extended Kalman Filtering Algorithm

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Journal of Beijing Institute of Technology 2024年第1期33卷 28-40页

作者： Duo Peng Kun xie Mingshuo Liu School of Computer and Communication of Lanzhou University of Technology Lanzhou Gansu 730050China

A wireless sensor network mobile target tracking algorithm(ISO-EKF)based on improved snake optimization algorithm(ISO)is proposed to address the difficulty of estimating initial values when using extended Kalman filtering to solve the state of nonlinear mobile target ***,the steps of extended Kalman filtering(EKF)are ***,the ISO is used to adjust the parameters of the EKF in real time to adapt to the current motion state of the mobile ***,the effectiveness of the algorithm is demonstrated through filtering and tracking using the constant velocity circular motion model(CM).Under the specified conditions,the position and velocity mean square error curves are compared among the snake optimizer(SO)-EKF algorithm,EKF algorithm,and the proposed *** comparison shows that the proposed algorithm reduces the root mean square error of position by 52%and 41%compared to the SOEKF algorithm and EKF algorithm,respectively.

关键词： wireless sensor network(WSN)target tracking snake optimization algorithm extended Kalman filter maneuvering target

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Waking Up Brain with Electrical Stimulation to Boost Memory in Sleep:A Neuroscience Exploration

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Neuroscience Bulletin 2024年第6期40卷 852-854页

作者： Zhe Zhong Fuling Yan Chunming xie Department of Neurology School of MedicineAffiliated Zhongda HospitalSoutheast UniversityNanjing210009China Institute of Neuropsychiatry Affiliated Zhongda HospitalSoutheast UniversityNanjing210009China The Key Laboratory of Developmental Genes and Human Disease Southeast UniversityNanjing210009China

Imagine that,in the future,you could enhance your memory by applying a mild electric current to your brain during *** might sound like science fiction,but it is based on cutting-edge neuroscience *** is widely recognized as a crucial factor for long-term memory consolidation,but the exact mechanisms by which the brain coordinates neural activity across different regions during sleep to reorganize and integrate memories are unknown[1,2].

关键词： Sleep integrate applying

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Navigating Epstein–Barr virus autoimmunity:role of NK cells and T cells in multiple sclerosis

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Signal Transduction and Targeted Therapy 2024年第3期9卷 833-835页

作者： Chu xie Cong Sun Mu-Sheng Zeng State Key Laboratory of Oncology in South China Guangdong Provincial Clinical Research Center for CancerGuangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and TherapySun Yat-sen University Cancer CenterGuangzhouP.R.China

In a recent study published in Cell,Vietzen and colleagues discovered the novel role of natural killer(NK)cells and EBVspecific CD8+T cell response in controlling EBV-inducing autoimmune response and collectively def... 详细信息

关键词： Epstein sclerosis killer

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2-巯基苯并咪唑钐配合物在天然橡胶中防老化作用的研究

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高分子学报 2011年第3期21卷 320-326页

作者：谢婵贾志欣罗远芳贾德民华南理工大学材料科学与工程学院广州510640

以2-巯基苯并咪唑为配体,制备了一种新型稀土钐配合物.采用红外光谱、热重分析等方法研究了钐配合物对天然橡胶硫化胶热氧老化过程的影响,探讨了钐配合物对天然橡胶硫化胶防老化作用的机理.红外光谱分析结果表明添加2-巯基苯并咪唑钐配... 详细信息

以2-巯基苯并咪唑为配体,制备了一种新型稀土钐配合物.采用红外光谱、热重分析等方法研究了钐配合物对天然橡胶硫化胶热氧老化过程的影响,探讨了钐配合物对天然橡胶硫化胶防老化作用的机理.红外光谱分析结果表明添加2-巯基苯并咪唑钐配合物的天然橡胶硫化胶经热氧老化后,氧化产物的生成量明显减少.2-巯基苯并咪唑钐配合物对天然橡胶硫化胶有显著的防老化作用,其防老化效果优于防老剂MB和防老剂4010NA.2-巯基苯并咪唑钐配合物通过结构中的硫醚键分解氢过氧化物,另一方面稀土钐离子与老化过程中产生的含氧自由基作用,使其失去反应活性,从而达到了较好的防老化效果.分别采用Kissinger和Flynn-Wall-Ozawa方法计算出了添加不同防老剂天然橡胶硫化胶的热氧化活化能,结果表明添加钐配合物天然橡胶硫化胶的热氧化活化能高于添加防老剂MB和添加防老剂4010NA硫化胶的热氧化活化能值.

关键词：钐配合物,2-巯基苯并咪唑,天然橡胶,防老剂,机理,动力学

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Clinical application of COVID-19 vaccine in liver transplant recipients

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Hepatobiliary & Pancreatic Diseases International 2024年第4期23卷 339-343页

作者： Feng-Chao Liu Man xie Wei Rao Division of Hepatology Liver Disease CenterThe Affiliated Hospital of Qingdao UniversityQingdao 266000China Organ Transplantation Center The Affiliated Hospital of Qingdao UniversityQingdao 266000China Institute of Organ Donation and Transplantation of Qingdao University Qingdao 266000China Department of Gastroenterology The Affiliated Hospital of Qingdao UniversityQingdao 266000China

Background:Solid organ transplant(SOT)activities,such as liver transplant,have been greatly influenced by the pandemic of coronavirus disease 2019(COVID-19),a disease caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2).Immunosuppressed individuals of liver transplant recipients(LTRs)tend to have a high risk of COVID-19 infection and related ***,COVID-19 vaccination has been recommended to be administered as early as possible in *** sources:The keywords“liver transplant”,“SARS-CoV-2”,and“vaccine”were used to retrieve articles published in ***:The antibody response following the 1st and 2nd doses of vaccination was disappointingly low,and the immune responses among LTRs remarkably improved after the 3rd or 4th dose of *** the 3rd or 4th dose of COVID-19 vaccine increased the antibody titer,a proportion of patients remained ***,recent studies showed that SARS-CoV-2 vaccine could trigger adverse events in LTRs,including allograft rejection and liver ***:This review provides the recently reported data on the antibody response of LTRs following various doses of vaccine,risk factors for poor serological response and adverse events after vaccination.

关键词： Liver transplant COVID-19 SARS-CoV-2 Vaccine Antibody response

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