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Study on frictional behavior of SiC_(f)/SiC composite clad tube clamping condition under nuclear irradiation

Friction 2024年第5期12卷 919-938页

作者： Chenglong XIAO Liangliang SHEN tianqi ZHU Jianbo TANG Ximing XIE Xinyu fan Jian xu Zhiying REN School of Mechanical Engineering Zhejiang University of TechnologyHangzhou310023China Engineering Laboratory of Advanced Energy Materials Ningbo Institute of Material Technology and EngineeringChinese Academy of SciencesNingbo315201China State Key Laboratory of Fine Chemicals Liaoning High-Performance Polymer Engineering Research CenterSchool of Chemical EngineeringDalian University of TechnologyDalian116024China School of Mechanical Engineering and Automation Fuzhou UniversityFuzhou350116China School of Computer Science and Technology Shandong UniversityQingdao266237China Aviation Industry Corporation of China Ltd.Beijing100028China

Silicon carbide fiber reinforced silicon carbide matrix(SiC_(f)/SiC)composite is the key cladding material of nuclear fuel,which determines the safety and reliability of nuclear fuel storage and *** replacement of its storage and transportation scenario needs to be completed by the manipulator,but the application of SiC_(f)/SiC wear,fracture,and nuclear leakage in the snatching process of brittle-flexible-rigid contact in the irradiation environment has been seriously restricted due to unclear understanding of the damage ***,the effects of irradiation dose and clamping load on the friction characteristics of the contact interface between SiC_(f)/SiC clad tube are studied in this paper,and the effects of irradiation parameters and clamping force on the static friction coefficient of the contact interface between the clad tube and flexible nitrile are *** on the Greenwood-Williamson tribological model,a numerical model of the shape and structure of the contact micro-convex at the micro-scale of the clamping interface is constructed by introducing the multi-surface integral,and finally verified by *** research results show that there is a unique“Irradiation suppression zone”under the clamping condition of SiC_(f)/SiC cladding tube under the nuclear irradiation environment,and the growth of static friction coefficient slows down until stagnates after irradiation reaches a certain extent(600 kGy),and there will be a decline when the irradiation dose continues to increase,among which the clamping force of 15.2 N within the irradiation interval of 1,000 kGy can meet the safety of nuclear environment *** results of this paper can provide an important theoretical basis and application guidance for the safe operation of SiC_(f)/SiC cladding tubes in the storage and transportation clamping process.

关键词： SiC_(f)/SiC Clad tube nuclear irradiation conditions Greenwood-Williamson tribological model multi-surface integral

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Activity Pattern and Habitat Use of Shorebirds in an Artificial Wetland Complex:A Case Study of Breeding Pied Avocet in the Yellow River Delta,China

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chinese Geographical Science 2024年第4期34卷 618-630页

作者： LI Dong LI Bin xu He fan Chao WU Yang ZHANG Yuxin HOU Xiyong Yantai Institute of Coastal Zone Research Chinese Academy of SciencesYantai 264003China beijing VMinFull Limited Beijing 100086China CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation Yantai Institute of Coastal Zone ResearchChinese Academy of SciencesYantai 264003China University of chinese academy of sciences Beijing 100049China School of Information Engineering Zhejiang Ocean UniversityZhoushan 316022China Key Laboratory for Biodiversity Science and Ecological Engineering College of Life SciencesBeijing Normal UniversityBeijing 100875China

With the loss of substantial natural wetlands in coastal zones,artificial wetlands provide alternative habitats for many *** management of artificial wetlands used by shorebirds plays an important role in maintaining the stability of shorebird *** tracking technique can obtain high-precision location information of individuals day and night,providing a good technical support for the study of quantitative relationship between waterfowls and their *** this study,satellite tracking method,Remote Sensing(RS)and Geographic Information System(GIS)technology were used to analyze the activity pattern and habitat utilization characteristics of Pied Avocet during breeding period in an artificial wetland complex in the Yellow River Delta(YRD),*** results showed that the breeding Pied Avocets had a small range of activity,with a total core and main home range of 33.10 km^(2) and 216.30 km^(2),*** species tended to forage in the pond and salt pan during the day and night,respectively,with an unfixed staying time in the breeding *** distance between breeding ground and feeding ground was less than 6 *** is emphasized that in addition to improving the conditions of the remaining natural habitats,effective managing artificial habitats is a priority for shorebird *** research could provide reference for the management of artificial wetlands in coastal zones and supply technique support for the protection of shorebirds and their habitats,and alleviate human-bird conflicts and sustainable development of coastal zones.

关键词： satellite tracking home range habitat use artificial wetland coastal zone Pied Avocet Yellow River Delta China

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Genome-Wide Association Study of Cooked Rice Textural Attributes and Starch Physicochemical Properties in indica Rice

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Rice science 2024年第3期31卷 300-316,I0018-I0041页

作者： DENG Bowen ZHANG Yanni ZHANG fan WANG Wensheng xu Jianlong ZHANG Yu BAO Jinsong Institute of Nuclear Agricultural sciences Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang ProvinceCollege of Agriculture and BiotechnologyZhejiang UniversityHangzhou 310058China Hainan Institute Zhejiang UniversitySanya 572025China Institute of Crop sciences Chinese Academy of Agricultural SciencesBeijing 100081China

Rice cooking and eating qualities(CEQ)are mainly determined by cooked rice textural parameters and starch physicochemical ***,the genetic bases of grain texture and starch properties in rice have not been fully *** conducted a genome-wide association study for apparent amylose content(AAC),starch pasting viscosities,and cooked rice textural parameters using 279 indica rice accessions from the 3000 Rice Genome *** identified 26 QTLs in the whole population and detected single nucleotide polymorphisms(SNPs)with the lowest P-value at the Waxy(Wx)locus for all traits except pasting temperature and ***,we detected significant SNPs at the SUBSTANDARD STARCH GRAIN6(SSG6)locus for AAC,setback(SB),hardness,adhesiveness,chewiness(CHEW),gumminess(GUM),and *** subsequently divided the population using a SNP adjacent to the Waxy locus,and identified 23 QTLs and 12 QTLs in two sub-panels,WxT and WxA,*** these sub-panels,SSG6 was also identified to be associated with pasting parameters,including peak viscosity,hot paste viscosity,cold paste viscosity,and consistency ***,a candidate gene encoding monosaccharide transporter 5(OsMST5)was identified to be associated with AAC,breakdown,SB,CHEW,and *** total,39 QTLs were co-localized with known genes or previously reported *** identified genes and QTLs provide valuable information for genetic manipulation to improve rice CEQ.

关键词： cooking and eating quality genome-wide association study rice Waxy gene

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A graph-based pan-genome of Brassica oleracea provides new insights into its domestication and morphotype diversification

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Plant Communications 2024年第2期5卷 261-278页

作者： Ning Guo Shenyun Wang tianyi Wang Mengmeng Duan Mei Zong Liming Miao Shuo Han Guixiang Wang Xin liu Deshuang Zhang Chengzhi Jiao Hongwei xu Liyang Chen Zhangjun Fei Jianbin Li fan liu State Key Laboratory of Vegetable Biobreeding National Engineering Research Center for VegetablesBeijing Key Laboratory of Vegetable Germplasm ImprovementKey Laboratory of Biology and Genetics Improvement of Horticultural Crops(North China)Beijing Vegetable Research CenterBeijing Academy of Agriculture and Forestry ScienceBeijing 100097China Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement Vegetable Research InstituteJiangsu Academy of Agricultural ScienceNanjingJiangsuChina Smartgenomics Technology Institute Tianjin 301700China Boyce Thompson Institute IthacaNYUSA

The domestication of Brassica oleracea has resulted in diverse morphological types with distinct patterns of organ *** we report a graph-based pan-genome of *** constructed from high-quality genome assemblies of different *** pan-genome harbors over 200 structural variant hotspot regions enriched in auxin-andflowering-related *** genomic analyses revealed that early domestication of *** focused on leaf or stem *** resulting from agricultural practices and variety improvement were detected among different ***-sweep and pan-genome analyses identified an auxin-responsive small auxin up-regulated RNA gene and a CLAV-ATA3/ESR-RELATED family gene as crucial players in leaf–stem differentiation during the early stage of *** domestication and the BoKAN1 gene as instrumental in shaping the leafy heads of cabbage and Brussels *** pan-genome and functional analyses further revealed that variations in the BoFLC2 gene play key roles in the divergence of vernalization andflowering characteristics among different morphotypes,and variations in thefirst intron of BoFLC3 are involved infine-tuning theflowering process in *** study provides a comprehensive understanding of the pan-genome of *** and sheds light on the domestication and differential organ development of this globally important crop species.

关键词： Brassica oleracea graph-based pan-genome structural variants SV domestication morphotype diversification

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Unlocking single-atom catalysts via amorphous substrates

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Nano Research 2024年第5期17卷 3533-3546页

作者： Bohua Sun Mingyuan xu Xiaoxia Li Baohong Zhang Rui Hao Xiaoyu fan Binbin Jia Dingshun She School of Engineering and Technology China University of Geosciences(Beijing)Beijing 100083China Zhengzhou Institute China University of Geosciences(Beijing)Zhengzhou 451283China College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion MaterialsChina Three Gorges UniversityYichang 443002China School of Chemistry Beihang UniversityBeijing 100191China chinese academy of sciences(CAS)Key Laboratory of Nanosystem and Hierarchy Fabrication CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing 100190China National Engineering Research Center of Nonferrous Metals Materials and Products for New EnergyChina GRINM Group Co.Ltd.Beijing 100088China

Single-atom catalysts(SACs)reveal great potential for application in catalysis due to their fully exposed active *** general,single atoms(SAs)and the coordination substrates need to have strong interactions or charge transfer to ensure the atomic dispersion,which requires the selection of a suitable substrate to stabilize the target *** studies have demonstrated that amorphous materials with abundant defects and coordinatively unsaturated sites can be used as substrates for more efficient capturing SAs,further enhancing the catalytic *** this review,we discuss recent research progress of SAs loaded on amorphous substrates for enhanced catalytic ***,we summarize the commonly used amorphous substrates for stabilizing ***,we present several advanced applications of amorphous SACs in the field of catalysis,including electrocatalysis and *** then,we also clarify the synergistic mechanism between SAs and amorphous substrate on catalytic ***,we summarize the challenges with our personal views and provide a critical outlook on how amorphous SACs continue to evolve.

关键词： single-atoms amorphous substrate synthetic strategy catalysis

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Efficacy of hepatic arterial infusion chemotherapy and its combination strategies for advanced hepatocellular carcinoma:A network meta-analysis

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World Journal of Gastrointestinal Oncology 2024年第8期16卷 3672-3686页

作者： Shun-An Zhou qing-Mei Zhou Lei Wu Zhi-Hong Chen fan Wu Zhen-Rong Chen Lian-Qun xu Bi-LingGan Hao-Sheng Jin Ning Shi Department of General Surgery Guangdong Provincial People’s Hospital(Guangdong Academy of Medical Sciences)Southern Medical UniversityGuangzhou 510000Guangdong ProvinceChina Department of Geriatrics Ganzhou Hospital-Nanfang HospitalSouthern Medical UniversityGanzhou 341000Jiangxi ProvinceChina Guangdong Cardiovascular Institute Guangdong Provincial People’s HospitalGuangdong Academy of Medical SciencesGuangzhou 510000Guangdong ProvinceChina Department of Liver Surgery Peking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijing 100730China

BACKGROUND With the rapid progress of systematic therapy for hepatocellular carcinoma(HCC),therapeutic strategies combining hepatic arterial infusion chemotherapy(HAIC)with systematic therapy arised increasing ***,there have been no systematic review comparing HAIC and its combination strategies in the first-line treatment for advanced *** To investigate the efficacy and safety of HAIC and its combination therapies for advanced *** A network meta-analysis was performed by including 9 randomized controlled trails and 35 cohort studies to carry out our *** outcomes of interest comprised overall survival(OS),progression-free survival(PFS),tumor response and adverse *** ratios(HR)and odds ratios(OR)with a 95% confidence interval(CI)were calculated and agents were ranked based on their ranking *** HAIC outperformed Sorafenib(HR=0.55,95%CI:0.4.-0.72;HR=0.51,95%CI:0.33-0.78;OR=2.86,95%CI:1.37-5.98;OR=5.4.,95%CI:3.57-8.30;OR=7.15,95%CI:4.06-12.58;OR=2.89,95%CI:1.99-4.19;OR=0.4.,95%CI:0.25-0.92,respectively)and transarterial chemoembolization(TACE)(HR=0.50,95%CI:0.33-0.75;HR=0.62,95%CI:0.39-0.98;OR=3.08,95%CI:1.36-6.98;OR=2.07,95%CI:1.54.2.80;OR=3.16,95%CI:1.71-5.85;OR=2.67,95%CI:1.59-4.50;OR=0.16,95%CI:0.05-0.54.respectively)in terms of efficacy and ***+lenvatinib+ablation,HAIC+ablation,HAIC+anti-programmed cell death 1(PD-1),and HAIC+radiotherapy had the higher likelihood of providing better OS and PFS outcomes compared to HAIC ***+TACE+S-1,HAIC+lenvatinib,HAIC+PD-1,HAIC+TACE,and HAIC+sorafenib had the higher likelihood of providing better partial response and objective response rate outcomes compared to ***+PD-1,HAIC+TACE+S-1 and HAIC+TACE had the higher likelihood of providing better complete response and disease control rate outcomes compared to HAIC *** HAIC proved more effective and safer than sorafenib and ***,combined with other interventions,HAIC showed imp

关键词： Hepatic arterial infusion chemotherapy Hepatocellular carcinoma Network meta-analysis Interventional therapy Systemic treatment

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A Mendelian randomisation,propensity score matching study to investigate causal association between serum homocysteine and intracranial aneurysm

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Stroke & Vascular Neurology 2024年第3期9卷 202-211,I0104-I0109页

作者： Zhuohua Wen Xin Feng Xin Tong Chao Peng Anqi xu Haiyan fan Yiming Bi Wenchao liu Zhenjun Li Shenquan Guo Fa Jin Ran Li Yanchao liu Shixing Su Xin Zhang Xifeng Li xuying He Aihua liu Chuanzhi Duan Neurosurgery Center Department of Cerebrovascular SurgeryEngineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular DiseaseZhujiang HospitalSouthern Medical UniversityGuangzhouChina beijing Neurosurgical Institute Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Department of Neurosurgery Guangdong Provincial People's Hospital(Guangdong Academy of Medical Sciences)Southern Medical UniversityGuangzhouChina

Background and purpose Recent observational studies have reported that serum total homocysteine(tHcy)is associated with intracranial aneurysms(IAs).However,the causal effect of tHcy on IAs is *** leveraged large-scale genetic association and real-world data to investigate the causal effect of tHcy on IA *** We performed a two-sample Mendelian randomisation(MR)using publicly available genome-wide association studies summary statistics to investigate the causal relationship between tHcy and IAs,following the recommendations of the Strengthening the Reporting of Observational Studies in Epidemiology-MR ***,a propensity score matching(PSM)analysis was conducted to evaluate the detailed effects of tHcy on risk of IA formation by utilizing real-world multicentre data,including 9902 patients with and without IAs(1:1 matched).Further interaction and subgroup analyses were performed to elucidate how tHcy affects risk of IA *** MR analyses indicated that genetically determined tHcy was causally associated with IA risk(OR,1.38,95%CI 1.07 to 1.79;p=0.018).This is consistent with the more conservative weighted median analysis(OR,1.4.,95%CI 1.03 to 1.93;p=0.039).Further sensitivity analyses showed no evidence of horizontal pleiotropy or heterogeneity of single nucleotide polymorphisms in causal *** to the PSM study,we found that,compared with low tHcy(≤15μmol/L),moderate tHcy(>15-30μmol/L)(OR 2.13,95%CI 1.93 to 2.36)and high tHcy(>30μmol/L)(OR 3.66,95%CI 2.71 to 4.95)were associated with a higher IA risk(p trend<0.001).Subgroup analyses demonstrated significant ORs of tHcy in each subgroup when stratified by traditional cardiovascular risk ***,there was also a synergistic effect of tHcy and hypertension on IA risk(p interaction<0.001;the relative excess risk due to interaction=1.65,95%CI 1.29 to 2.01).Conclusion Both large-scale genetic evidence and multicentre real-world data support a causal as

关键词： matching random centre

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Permeability and selectivity synergistically enhanced nanofluidic membrane for osmotic energy harvesting

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Carbon Energy 2024年第8期6卷 14-24页

作者： Jundong Zhong Tingting xu Hongyan Qi Weibo Sun Shuang Zhao Zhe Zhao Yirong Sun Youliang Zhu Jianxin Mu haibo Zhang xuanbo Zhu Zhenhua Jiang Lei Jiang National and Local Joint Engineering Laboratory for Synthetic Technology of High‐Performance Polymer Jilin UniversityChangchunJilinChina State Key Laboratory of Supramolecular Structure and Materials Jilin UniversityChangchunJilinChina Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education Jilin UniversityChangchunJilinChina CAS Key Laboratory of Bio‐inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijingChina

For the porous‐membrane‐based osmotic energy generator,the potential synergistic enhancement mechanism of various key parameters is still controversial,especially because optimizing the trade‐off between permeability and selectivity is still a ***,to construct a permeability and selectivity synergistically enhanced osmotic energy generator,the twodimensional porous membranes with tunable charge density are prepared by inserting sulfonated polyether sulfone into graphene *** of charge density and pore size on the ion transport are explored,and the ionic behaviors in the channel are calculated by numerical *** mechanism of ion transport in the process is studied in depth,and the fundamental principles of energy conversion are *** results demonstrate that charge density and pore size should be matched to construct the optimal ion *** collaborative enhancement strategy of permeability and selectivity has significantly improved the output power in osmotic energy generation;compared to the pure graphene oxide membrane,the composite membrane presents almost 20 times improvement.

关键词： blue energy generator charge tunable graphene oxide ion transport layered nanocomposites

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Fufang E’jiao Jiang’s effect on immunity,hematopoiesis,and angiogenesis via a systematic“compound-effect-target”analysis

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Food Science and Human Wellness 2024年第5期13卷 2813-2832页

作者： Xiang Li Xiao xu Ying Dong Shusheng fan xueyang Ren Yuan Zheng Jiamu Ma Feng Zhang qingyue Deng Xianxian Li Yingyu He Mengyu Sun Wei {4. Mengxia Li qing Xia Yan Zhang Gaimei She School of chinese Materia Medica Beijing University of Chinese MedicineBeijing 102488China Biology Institute Qilu University of Technology(Shandong Academy of Sciences)Jinan 250103China National Engineering Research Center for Gelatin-based Traditional chinese Medicine Dong-E-E-Jiao Co.Ltd.Liaocheng 252201China

Fufang E’jiao Jiang(FEJ)as a healthy food consisting of medicine food homology materials approved by China’s Ministry of Health has been extensively applied to replenish qi and nourish blood,and it has a positive impact on women’s *** find out the material basis and mechanism of FEJ,a systematic“compoundeffect-target”analysis including chemical composition resolution,zebrafish,network pharmacology,molecular docking,transcriptome,and bibliometric analysis was adopted.124.chemical components including ginsenosides,and phenylethanoid glycosides in FEJ were discovered,and effects of FEJ on promoting the generation of immune cells,erythropoiesis and angiogenesis in zebrafish were *** on network pharmacology,molecular docking and in vivo activity assay,6 compounds including jionoside A1,isoacteoside,echinacoside,acteoside,lobetyolin,and rehmannioside D were identified as active components of *** data showed that several pathways such as complement and coagulation cascades,ECM-receptor interaction,and PI3K-Akt signaling pathway were associated with proangiogenic effect of FEJ.19 common targets were obtained through combined analysis of network pharmacology and transcriptomics,and 5 targets of them were verified by *** bibliometric analysis of these common targets revealed that FEJ was related to energy metabolism,pathway in cancer,etc.,which was consistent with the results of network pharmacology and *** studies suggested that FEJ could replenish qi and nourish blood through multi-compound and multi-targets.

关键词： Fufang E’jiao Jiang Zebrafish(Danio rerio) Network pharmacology Transcriptome Bibliometrics

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Superhydrophobic melamine sponge prepared by radiation-induced grafting technology for efficient oil-water separation

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Nuclear Science and Techniques 2024年第9期35卷 103-114页

作者： Ying Sun Wen-Rui Wang Dan-Yi Li Si-Yi xu Lin Lin Man-Li Lu Kai fan Chen-Yang Xing Lin-fan Li Ji-Hao Li Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China University of chinese academy of sciences Beijing 100049China School of Architecture and Materials Chongqing College of Electronic EngineeringChongqing 401331China Center for Stretchable Electronics and NanoSensors Key Laboratory of Optoelectronic Devices and Systems of Ministry of EducationCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China

This paper presents a superhydrophobic melamine(ME)sponge(ME-g-PLMA)prepared via high-energy radiation-induced in situ covalent grafting of long-alkyl-chain dodecyl methacrylate(LMA)onto an ME sponge for efficient oil–water *** obtained ME-g-PLMA sponge had an excellent pore structure with superhydrophobic(water contact angle of 154.)and superoleophilic *** can absorb various types of oils up to 66–168 times its *** ME-g-PLMA sponge can continuously separate oil slicks in water by connecting a pump or separating oil underwater with a gravity-driven *** addition,it maintained its highly hydrophobic properties even after long-term immersion in different corrosive solutions and repeated oil *** modified ME-g-PLMA sponge exhibited excellent separation properties and potential for oil spill cleanup.

关键词： Radiation-induced graft polymerization Oil–water separation Sponge Superhydrophobic

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