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| 1 | Prediction analysis of long-term memory effect for calamity gray series显示文摘It is adequate to use the gray theory for modeling and forecasting short-term calamity series. The forecast of calamity gray series is equivalent to predicting an extraordinary event in nature. In order to look for the regularity, the calamity date series, created from the threshold for a fixed time-interval series, are studied. In this paper, the Hurst exponent is applied to defining the long-term memory effect of the simulated calamity series, and is tested for the feasibility of using it as pre-requisite information before the gray modeling and forecasting. Based on the fractional Brownian motion (fBm) model, the time series with a definite length or quantity of data are derived assuming that various kinds of memory effect exist. Different threshold values are defined to yield or to analogize the calamity date series that are required in the prediction of the gray calamity events. After case study, both of the simulated and real seismic data show that the Hurst exponents are greater than 0.5 and, therefore, indicate that the long-term memory ef-fect exists. The correlation between the Hurst exponent and the gray modeling parameter, a, provides criteria for the classification of the forecast. | CHEN Zhaonan (CHEN Chaonan)1 & LI Zongyang (LEE Tzongyeang)2 1. Department of Earth Sciences, National Cheng Kung University, 1 Ta-Hsueh Road, Tainan 70101, Taiwan, China 2. Department of Information Management, Leader University, No. 188, Sec 5, Au-Chung Road, Tainan 70901, Taiwan, China | 2004 | Science China Earth Sciences2004，47，3： | 1 |
| 2 | Coverage of 13-Valent Pneumococcal Conjugate Vaccine Among Children 0–15 Months of Age—9 Provinces,China,2019–2021显示文摘Summary What is already known on this topic?Limited data exist regarding the coverage of the 13-valent pneumococcal conjugate vaccine(PCV13)in China.A lack of official statistics,coupled with an insufficient body of published literature,hinders the accurate depiction of the current situation.What is added by this report?This study investigated the utilization of PCV13 and estimated its coverage in nine provinces across eastern,central,and western China between 2019 and 2021.Despite an annual increase in PCV13 usage during this period,the overall coverage remained suboptimal. | Lijun Liu Zhaonan Zhang Xixi Zhang Changsha Xu Yifan Song Li Li Jiakai Ye Zhiguo Wang Hui Liang Weiyan Zhang Ling Lin Ning Li Shujun Zhang Qianli Ma Wen Du Yongzhuo Jiao Lingsheng Cao Qi Qi Lei Cao Wenzhou Yu | 2023 | China CDC weekly2023，5，17： | 1 |
| 3 | Synergistic effects of silver nanoparticles and cisplatin in combating inflammation and hyperplasia of airway stents显示文摘Anti-inflammatory and antihyperplasia activities are essential requirements for the successful use of airway stents.In this work,silver nanoparticles(AgNPs)and cisplatin(DDP)were combined in a synergistic modification strategy to improve the surface function of airway stents.Using polycaprolactone(PCL)as a drug carrier,a dual-functional PCL-AgNPs-DDP fiber film-coated airway stent was fabricated by electrospinning.The physicochemical and biological properties of the obtained fiber films were examined.The ATR-FTIR,XPS,SEM-EDS and TEM results suggested that AgNPs and DDP could be successfully immobilized onto the airway stent surface.The drug release and surface degradation results revealed that AgNPs and DDP can undergo sustained release from films for 30 d,and the weight loss was approximately 50%after 35 d.In addition,the dual-functional fiber film suppressed human embryonic lung fibroblast growth and exhibited excellent antibacterial activity against Staphylococcus aureus,Pseudomonas aeruginosa and Candida albicans.Furthermore,the effectiveness of the dual-functional fiber film-coated airway stent was evaluated by application to the trachea of New Zealand rabbits.The in vivo results indicated that PCL-AgNPs-DDP fiber film-coated airway stent can significantly inhibit granulation tissue formation and collagen deposition,reduced the expression of IL-8,TNF-α,IL-1α,PCNA,α-SMA and CD68,and ultimately achieved anti-inflammatory and antihyperplasia effects.Hence,this study provides a dual-functional surface-coated airway stent to address the clinical complications associated with respiratory tract inflammation and granulation tissue hyperplasia,thus inhibiting tracheal stenosis. | Zhaonan Li Chuan Tian Dechao Jiao Jing Li Yahua Li Xueliang Zhou Huiping Zhao Yanan Zhao Xinwei Han | 2022 | Bioactive Materials2022，7，3： | 1 |
| 4 | Evaporation and drying characteristics of the sessile ferrofluid droplet under a horizontal magnetic field显示文摘In this study,the evaporation characteristics and drying patterns of various sessile ferrofluid droplets on certain substrate under horizontal magnetic fields of controlled intensities are reported.The effects of droplet concentration and magnetic field intensity on the duration of each evaporation stage and drying patterns of droplets have been systematically investigated.It turned out that a plateau appears at the initial stage of evaporation in the absence of magnetic field and it was found that the plateau value is positively correlated with the concentration of ferrofluid droplets.Under the external magnetic field,the evaporation time of droplets decreases,the stage of contact line retreat extends,the stage of late pinning mode shortens,and the deposition area of ferrofluid droplet decreases compared to that of without magnetics field.The deposition area increases gradually and becomes more uniform with the increase of magnetic field.The decrease of friction force which is due to the decrease of the number of nanoparticles at the contact line under external magnetic field is the main reason for the observed phenomena.We found that the coffee ring and the uniform deposition inside the droplet will be destroyed when the magnetic field intensity is higher than a critical value.Our work has a significant reference value for the evaporation of sessile magnetic fluid droplets under the applied magnetic field,especially when the drying pattern needs to be precisely controlled,such as in spray or biomedicine. | Zhaonan Liu Jiandong Zhou Yang Li Xin Zhuo Xiujuan Shi Dengwei Jing | 2022 | Fundamental Research2022，2，2： | 0 |
| 5 | FvWRKY50 is an important gene that regulates both vegetative growth and reproductive growth in strawberry显示文摘The WRKY transcription factors play important roles in plant growth and resistance,but only a few members have been identified in strawberry.Here we identified a WRKY transcription factor,FvWRKY50,in diploid strawberry which played essential roles in strawberry vegetative growth,and reproductive growth.Knocking out FvWRKY50 by genome editing accelerated flowering time and leaf senescence but delayed anthocyanin accumulation in fruit.Further analysis showed that FvWRKY50 acted as a transcriptional repressor to negatively regulate the expression of flowering-and leaf senescence-related genes,including FvFT2,FvCO,FvFT3,and FvSAUR36.Notably,FvWRKY50 directly upregulated the expression of FvCHI and FvDFR by binding their promoter under normal conditions,but at low temperature FvWRKY50 was phosphorylated by FvMAPK3 and then induced protein degradation by ubiquitination,delaying anthocyanin accumulation.In addition,the homozygous mutant of FvWRKY50 was smaller while the biallelic mutant showed normal size.These new findings provide important clues for us to further reveal the regulatory mechanisms of strawberry growth and fruit ripening. | Yating Chen Liping Liu Qianqian Feng Chuang Liu Yujuan Bao Nan Zhang Ronghui Sun Zhaonan Yin Chuanfei Zhong Yuanhua Wang Qian Li Bingbing Li | 2023 | Horticulture Research2023，10，7： | 0 |
| 6 | Semiparametric Bayesian Inference for Accelerated Failure Time Models with Errors-in-Covariates and Doubly Censored Data显示文摘This paper proposes a Bayesian semiparametric accelerated failure time model for doubly censored data with errors-in-covariates. The authors model the distributions of the unobserved covariates and the regression errors via the Dirichlet processes. Moreover, the authors extend the Bayesian Lasso approach to our semiparametric model for variable selection. The authors develop the Markov chain Monte Carlo strategies for posterior calculation. Simulation studies are conducted to show the performance of the proposed method. The authors also demonstrate the implementation of the method using analysis of PBC data and ACTG 175 data. | SHEN Junshan LI Zhaonan YU Hanjun FANG Xiangzhong | 2017 | Journal of Systems Science & Complexity2017，30，5： | 0 |
| 7 | Toward Establishing a Low-cost UAV Coordinated Carbon Observation Network(LUCCN):First Integrated Campaign in China显示文摘In this study,we introduce our newly developed measurement-fed-perception self-adaption Low-cost UAV Coordinated Carbon Observation Network(LUCCN)prototype.The LUCCN primarily consists of two categories of instruments,including ground-based and UAV-based in-situ measurement.We use the GMP343,a low-cost non-dispersive infrared sensor,in both ground-based and UAV-based instruments.The first integrated measurement campaign took place in Shenzhen,China,4 May 2023.During the campaign,we found that LUCCN’s UAV component presented significant data-collecting advantages over its ground-based counterpart owing to the relatively high altitudes of the point emission sources,which was especially obvious at a gas power plant in Shenzhen.The emission flux was calculated by a crosssectional flux(CSF)method,the results of which differed from the Open-Data Inventory for Anthropogenic Carbon dioxide(ODIAC).The CSF result was slightly larger than others because of the low sampling rate of the whole emission cross section.The LUCCN system will be applied in future carbon monitoring campaigns to increase the spatiotemporal coverage of carbon emission information,especially in scenarios involving the detection of smaller-scale,rapidly varying sources and sinks. | Dongxu YANG Tonghui ZHAO Lu YAO Dong GUO Meng FAN Xiaoyu REN Mingge LI Kai WU Jing WANG Zhaonan CAI Sisi WANG Jiaxu GUO Liangfu CHEN Yi LIU | 2024 | Advances in Atmospheric Sciences2024，41，1： | 0 |
| 8 | 高能Sn离子引起碳化硅纤维损伤的X-射线衍射分析显示文摘Silicon carbide(SiC)fiber possesses low neutron capture cross-section,low induced radioactivity,high thermal stability,low density,high specific strength,good oxidation-ablation resistance,high specific modulus,especially improved flaw tolerance and non-catastrophic mode of failure.Therefore,silicon carbide fiber is considered as a candidate structural component in advanced nuclear industry fields.The irradiation damage which silicon carbide fiber will experience cannot be ignored.In fission reactors,SiC fibers are inevitably subjected to irradiation by various fission fragments(heavy ions with up to hundreds of MeV)irradiation,which are produced via chain fission of the uranium.While in fusion reactors,the average energy of recoils produced by neutron irradiation in materials can reach several hundred keV.Most of the energy of fission fragments/recoils is deposited in the materials mainly through electronic processes(excitation and ionization of atoms along the trajectory of ions).Therefore,it is indispensable to acquire a comprehensive knowledge of the microstructure of SiC fibers under energetic-heavy-ion irradiation. | Zhang Liqing Zhang Chonghong Huang Qing Zhang Xianlong Ding Zhaonan Chen Yuguang Li Jianyang Ma Baoshui | 2018 | IMP & HIRFL Annual Report2018，，1： | 0 |
| 9 | 核反应堆压力容器钢的辐照缺陷演化的OKMC模拟研究显示文摘Reactor Pressure Vessel(RPV)is a key structural component of nuclear reactor.It has to endure high-dose neutron irradiation during service.Neutron irradiation produces defect clusters and solute segregation,causing hardening and embrittlement of the RPV steel.A pretty number of testing and characterization techniques of microstructure and mechanical properties utilizing miniaturized specimens have been developed[1−4].Current experimental studies show that the increase of nano-hardness and micro-hardness of materials is positively correlated with that of macroscopic yield stress and ductile-brittle transition temperature[5;6].Meanwhile,some physical models related to defects,solute cluster characteristics and hardness change of materials have been established[7;8],supposing that the hardness increment in irradiation material mainly comes from the large heterogeneous clusters. | Li Jianyang Zhang Chonghong Ding Zhaonan | 2018 | IMP & HIRFL Annual Report2018，，1： | 0 |
| 10 | An Investigation on Strains of Kr-ion-implanted and Subsequently Annealed SiC显示文摘Silicon carbide(SiC)has been considered as potential structural materials in advanced nuclear energy systems for many years due to its superior physical and chemical properties. | Zhang Liqing Zhang Chonghong Zhang Xianlong Ding Zhaonan Chen Yuguang Li Jianyang Xu Qiumei Han Xuxiao | 2019 | IMP & HIRFL Annual Report2019，，1： | 0 |
| 11 | Risk factors for disease severity in COVID-19 patients: A single-center retrospective study显示文摘Background:The outbreak of coronavirus disease 2019(COVID-19)has posed a huge threat to human health.However,little is known regarding the risk factors associated with COVID-19 severity.We aimed to explore early-stage disease risk factors associated with eventual disease severity.Methods:This study enrolled 486 hospitalized,non-intensive care unit(ICU)-admitted adult patients with COVID-19(age≥18 years)treated at Wuhan Jinyintan Hospital,who were divided into three groups according to disease severity.The demographic,clinical,and laboratory data at admission and clinical outcomes were compared among severity groups,and the risk factors for disease severity were identified by multiple regression analysis.Results:Of 486 patients with COVID-19,405(83.33%)were discharged,33(6.71%)died outside of the ICU,and 48(7.20%)were still being treated in the ICU by the time the study period ended.Significant differences in age,lymphocyte counts,and the levels of procalcitonin,aspartate aminotransferase,and D-dimer(P<0.001 for all)among the three groups.Further analysis showed that older age,decreased lymphocyte counts,and increased procalcitonin,aspartate aminotransferase,and D-dimer levels were significantly associated with disease progression.Conclusion:Severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)may impair the immune system,the blood coagulation system,and hepatic and cardiac function.Some clinical characteristics and laboratory findings can help identify patients with a high risk of disease severity,which can be significant for appropriate resource allocation during the COVID-19 pandemic. | Jingqing Xu Yanping Cai Min Li Qing Li Yingrui Zhang Ying Jiang Wanli Yan Xuemei Chen Hongxuan Zhang Zhaonan Zeng Fayang Lian Xiuling Shang Rongguo Yu | 2021 | Journal of Intensive Medicine2021，1，2： | 0 |
| 12 | Measurement on the Harmony Coefficient of Agro-eco-economic System in the Arid Region显示文摘On the basis of the present research progress of ecological agriculture,we take Minle County and Linze County located in the middle reaches of Heihe River as the typical research units.Based on the rural social and economic data during the period of 2000-2010,theory and method of mathematical statistics are used to establish the measure theory and model of agro-eco-economic system harmony coefficient,including efficacy function,function of harmony coefficient,harmony coefficient and level of harmony coefficient.Based on the actual situation of research region,evaluation indicator system of agro-eco-economic system is established and measurement is carried out.Results show that the regional agro-eco-economic system in research region was in a serious imbalance in 2000-2013.The harmony coefficient of Minle showed a slight rise from 2000 to 2004,and then presented a fluctuating decline.Its rank of harmony coefficient experienced serious imbalance-extreme imbalance-moderate imbalance-low imbalance-serious imbalance-high imbalance.At the same time,the similar tendency happened in Linze County.The measuring results of subsystem in 2000-2013 further indicated that except that the harmony coefficient of economic subsystem in Minle County and Linze County was moderate and high,the ecological subsystem was at Level II and Level III,and social subsystem was at Level IV and Level III,in high and low imbalance status.Finally,several recommendations were put forward for optimizing agro-eco-economic system. | Qijun LIU Zhaonan LI | 2016 | Asian Agricultural Research2016，8，8： | 0 |
| 13 | 3-28 Raman Spectra Study of Radiation Damage by Energetic Arq+ Ions on Silicon Carbide Fiber Surface显示文摘Silicon carbide (SiC) ber possesses high thermal stability, low density, high speci c strength, good oxidation-ablation resistance, high speci c modulus, especially improved aw tolerance and non-catastrophic mode of failure.Therefore, silicon carbide ber is widely used in aerospace, aviation, nuclear industry, and other elds. The radiation damage which silicon carbide ber will be subject to is inevitable though it is immune to various environments. | Zhang Liqing Zhang Chonghong Ding zhaonan Song Yin Yang Yitao Li Caisheng Fan Jiaqi Yuan Tingxing Huang Qing | 2015 | IMP & HIRFL Annual Report2015，，1： | 0 |
| 14 | 3-31 Study on Hardening Caused by He Ion Implantation in Two Kinds of Reduced-activation Ferritic/Martensitic Steels Made in China显示文摘Reduced activation ferritic/martensitic steels (RAFM) are important candidate materials for future nuclear fusion reactors because of their high thermal conductivity, low thermal expansion rate and high resistance to void swelling. The influence of the accumulation of high concentration of helium via the(n, a)nuclear reaction on microstructures and macro-properties of the steels is an important issue limiting the service lifetime of the materials. | Fan Jiaqi Yang Yitao Ding Zhaonan Li Caisheng Zhang Chonghong Xu Yuping Luo Guangnan | 2015 | IMP & HIRFL Annual Report2015，，1： | 0 |
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