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| 1 | Conceptual study of lunar-based SAR for global change monitoring显示文摘As an active microwave remote sensing imaging sensor, Synthetic Aperture Radar(SAR) plays an important role in earth observation. Here we establish a SAR system based on the platform of the moon. This will aid large-scale, constant, and long-term dynamic Earth observations to better meet the needs of global change research and to complement the space borne and airborne earth observations. Lunar-based SAR systems have the characteristics of high resolution and wide swath width. The swath width could be thousands of kilometers in the stripe mode and it could cover 40% of earth's surface with 10 meters or even higher spatial resolution in the scanning mode. Using the simplified observation model, here we quantitatively analyze the spatial resolution and coverage area of lunar-based SAR and simulate the observation on the Qinghai-Tibet plateau and the Amazon plain. The results show that this system could provide near 100% daily coverage of the Qinghai-Tibet plateau, whereas 40% to 70% daily coverage of the Amazon plain. Lunar-based SAR could provide large-scale, long-term and stable time series data in order to support future research of global change. | GUO HuaDong DING YiXing LIU Guang ZHANG DaoWei FU WenXue ZHANG Lu | 2014 | Science China Earth Sciences2014，57，8： | 8 |
| 2 | Effectiveness of Catch-Up Vaccinations after COVID-19 Containment--China,2020显示文摘Introduction:In the early stages of the coronavirus disease 2019(COVID-19)epidemic in China,the highest level of public health emergency response(Level 1 Response)was launched in all province-level administrative divisions(PLADs)across the country.Provision of vaccination services was selectively suspended due to the physical distancing and gathering restrictions required of Level 1 Response.The purpose of this paper is to evaluate the impact of COVID-19 on vaccination services and the effectiveness of selective vaccination service suspension and catch-up vaccinations in China.Methods:Vaccine doses administered,routine vaccination coverage levels,catch-up vaccine doses administered,and coverage levels after the catch-up campaign were determined from individual vaccination records in sampled clinics,standard routine immunization administrative coverage reports,and catch-up vaccination activity reports submitted by PLADs between October 2019 and October 2020.Results:National Immunization Program(NIP)and non-NIP vaccine doses administered in sampled clinics decreased by 80% and 90%,respectively,compared with doses administered before the COVID-19 pandemic.Coverage with the birth dose of hepatitis B vaccine(HepB1)and the Bacillus Calmette-Guérin vaccine(BCG)—two vaccinations recommended to continue throughout the epidemic due to their timecritical nature—were maintained at over 85%,while coverage of other NIP vaccines decreased to below 60%by February 2020.Catch-up vaccination coverage of the 29 PLADs,excluding Xinjiang and Xizang(Tibet),began in April 2020 and exceeded 90%;Hubei catch-up coverage was 95% by October 2020.Conclusions and Implications for Public Health Practice:The COVID-19 pandemic had a great impact on China’s vaccination services.During the epidemic and time of local transmission of the coronavirus,HepB1,BCG,rabies vaccine for postexposure prophylaxis,and tetanus antitoxin(TAT)for wound prophylaxis were maintained at high levels.Of the 69 million vaccine doses postponed during the time of local transmission of the coronavirus,94% were administered in the catch-up campaign.China’s pandemic immunization practices may provide evidence for other countries’immunization programs. | Jing Wu Wenzhou Yu Lei Cao Lingsheng Cao Lance Rodewald Jiakai Ye Yifan Song Li Li Xiaoxue Liu Ning Wen Fuzhen Wang Lixin Hao Yixing Li Hui Zheng Keli Li Chao Ma Dan Wu Yanmin Liu Guomin Zhang Zhijie An Huaqing Wang Zundong Yin | 2020 | China CDC weekly2020，2，50： | 6 |
| 3 | DeST 3.0:A new-generation building performance simulation platform显示文摘Buildings contribute to almost 30%of total energy consumption worldwide.Developing building energy modeling programs is of great significance for lifecycle building performance assessment and optimization.Advances in novel building technologies,the requirements of high-performance computation,and the demands for multi-objective models have brought new challenges for building energy modeling software and platforms.To meet the increasing simulation demands,DeST 3.0,a new-generation building performance simulation platform,was developed and released.The structure of DeST 3.0 incorporates four simulation engines,including building analysis and simulation(BAS)engine,HVAC system engine,combined plant simulation(CPS)engine,and energy system(ES)engine,connected by air loop and water loop balancing iterations.DeST 3.0 offers numerous new simulation features,such as advanced simulation modules for building envelopes,occupant behavior and energy systems,cross-platform and compatible simulation kernel,FMI/FMU-based co-simulation functionalities,and high-performance parallel simulation architecture.DeST 3.0 has been thoroughly evaluated and validated using code verification,inter-program comparison,and case-study calibration.DeST 3.0 has been applied in various aspects throughout the building lifecycle,supporting building design,operation,retrofit analysis,code appliance,technology adaptability evaluation as well as research and education.The new generation building simulation platform DeST 3.0 provides an efficient tool and comprehensive simulation platform for lifecycle building performance analysis and optimization. | Da Yan Xin Zhou Jingjing An Xuyuan Kang Fan Bu Youming Chen Yiqun Pan Yan Gao Qunli Zhang Hui Zhou Kuining Qiu Jing Liu Yan Liu Honglian Li Lei Zhang Hong Dong Lixin Sun Song Pan Xiang Zhou Zhe Tian Wenjie Zhang Ruhong Wu Hongsan Sun Yu Huang Xiaohong Su Yongwei Zhang Rui Shen Diankun Chen Guangyuan Wei Yixing Chen Jinqing Peng | 2022 | Building Simulation2022，15，11： | 5 |
| 4 | Moon-based Earth observation:scientific concept and potential applications显示文摘Although Earth’s surface parameters obtained from satellite data have become more and more precise,it is still difficult to guarantee temporal consistency and spatial continuity for large-scale geoscience phenomena.Developing new Earth observation platforms is a feasible way to improve the consistency and continuity of such data.As the planet’s only natural satellite,the Moon has special advantages as a platform for observing Earth,including long lifetime,whole disk view,tectonic stability and unique perspective.After presenting the observation geometry constructed by using the ephemeris,this paper mainly discusses the characteristics of a lunar platform and the proper Moon-based sensors,as well as the scientific objectives of Moon-based Earth observation.Solid Earth dynamics,the energy budget of Earth,Earth’s environmental elements and the Earth-space environment are four potential applications analysed in this paper. | Huadong Guo Guang Liu Yixing Ding | 2018 | International Journal of Digital Earth2018，11，6： | 4 |
| 5 | Study on the Coincident-Loop Transient Electromagnetic Method in Seafloor Exploration——Taking Jiaodong Polymetallic Mine as a Model显示文摘The transient electromagnetic(TEM)method becomes more urgent than ever for marine ex-ploration due to abundant resource reserves and the increasing undersea engineering construction activities,especially in the offshore exploration of mineral deposits such as Sanshandao gold mine.However,the re-search and application of TEM method in marine environment are still challenged by many problems.Such contradiction motivates our study on the coincident-loop TEM in seafloor exploration.The TEM response of coincident loops is firstly derived in the integral form,based on the potential functions in Helmholtz equ-ations for a magnetic source locating in the whole-space layered model.The frequency-domain vertical magnetic field is described as the Hankel integral with double first-order Bessel functions of first kind.Se-condly,the time-domain induced voltage is obtained by transforming the frequency-domain response through the cosine transform and then taking the derivative of time.To simultaneously solve the Hankel transform and the cosine transform,a novel algorithm is introduced by adapting the fixed-point quadra-ture and extrapolation via the Shanks transformation.Finally,a typical conductivity model for marine po-lymetallic deposit is designed to investigate the characteristic of TEM response under various conditions.Numerical results demonstrate that existence of conductive seawater causes the TEM response to increase significantly and decay slower.The air-sea reflected electromagnetic waves lead to a significantly large fake negative response(NR)in shallower seawater with depth less than 300 m.Increase in the height of loops will weaken and delay the anomaly response and shorten the observation time-window.The height of configu-ration should be no more than 100 m for shallower targets and 50 m for deeper targets,respectively.The observation time-window should cover 10-1000 ms.Increase in the radius of loops only enhances the TEM response proportionally but hardly improves the relative anomaly.The vertical resolution on the low-resistivity target approximates 20 m for the configuration considered in the study.Decreases in D.C.resistivity and chargeability cause the positive response(PR)to increase significantly and decay more ra-pidly.Meanwhile,the NR is advanced and enlarged significantly and decays slower compared with the PR.The influence of time constant is not monotony and there exists an optimal value for producing the maxi-mum NR.As the frequency parameter increases,the PR is caused to decay more rapidly without magni-tude change and the NR is advanced and decays more rapidly with significant increase in magnitude.The influence of frequency parameter is more pronounced than that of time constant. | Yixing Ma Junhua Hu Yanjun Chang Zujian Liu | 2021 | Journal of Earth Science2021，32，1： | 3 |
| 6 | Multi-objective Optimisation Design of Water Distribution Systems:Comparison of Two Evolutionary Algorithms显示文摘In order to compare two advanced multi-objective evolutionary algorithms,a multi-objective water distribution problem is formulated in this paper.The multi-objective optimization has received more attention in the water distribution system design.On the one hand the cost of water distribution system including capital,operational,and maintenance cost is mostly concerned issue by the utilities all the time;on the other hand improving the performance of water distribution systems is of equivalent importance,which is often conflicting with the previous goal.Many performance metrics of water networks are developed in recent years,including total or maximum pressure deficit,resilience,inequity,probabilistic robustness,and risk measure.In this paper,a new resilience metric based on the energy analysis of water distribution systems is proposed.Two optimization objectives are comprised of capital cost and the new resilience index.A heuristic algorithm,speedconstrained multi-objective particle swarm optimization( SMPSO) extended on the basis of the multi-objective particle swarm algorithm,is introduced to compare with another state-of-the-art heuristic algorithm,NSGA-II.The solutions are evaluated by two metrics,namely spread and hypervolume.To illustrate the capability of SMPSO to efficiently identify good designs,two benchmark problems( two-loop network and Hanoi network) are employed.From several aspects the results demonstrate that SMPSO is a competitive and potential tool to tackle with the optimization problem of complex systems. | Haixing Liu Jing Lu Ming Zhao Yixing Yuan | 2016 | Journal of Harbin Institute of Technology(New Series)2016，23，3： | 3 |
| 7 | Validation and Scenario Analysis of a Soil Organic Carbon Model显示文摘A model developed by the authors was validated against independent data sets. The data sets were obtained from field experiments of crop residue decomposition and a 7-year soil improvement in Yixing City, Jiangsu Province. Model validation indicated that soil organic carbon dynamics can be simulated from the weather variables of temperature, sunlight and precipitation, soil clay content and bulk density, grain yield of previous crops, qualities and quantities of the added organic matter. Model simulation in general agreed with the measurements. The comparison between computed and measured resulted in correlation coefficient γ2 values of 0.9291 * * * (n = 48) and 0. 6431 * * (n = 65) for the two experiments, respectively. Model prediction under three scenarios of no additional organic matter input, with an annual incorporation of rice and wheat straw at rates of 6.75t/ha and 9.0t/ha suggested that the soil organic carbon in Wanshi Township of Yixing City would be from an initial value of 7.85g/kg in 1983 to 6.30g/kg, 11.42g/kg and 13g/kg in 2014, respectively. Consequently, total nitrogen content of the soil was predicted to be respectively 0.49g/kg,0.89g/kg and 1.01g/kg under the three scenarios. | HUANG Yao, LIU Shi-Hang, SHEN Qi-rong, ZONG Liang-gang, JIANG Ding-an and HUANG Hong-guang(College of Resource and Environmental Sciences , Nanjing Agricultural University, Nanjing 210095 , P,R. China Institute of Atmospheric Physics , Chinese Academy of Sciences , Beijing 100029 , P. R . China Agricultural Bureau of Yixing City, Yixing 214209 , P.R. China ) | 2002 | Agricultural Sciences in China2002，1，4： | 2 |
| 8 | The Large Compressive Deformation of Wood in the Transverse Direction (Ⅰ): Relationships between Stress-strain Diagrams and Specifi 显示文摘 | Liu Yixing Norimoto Misato Morooka Toshiro | 1993 | Mokuzai Gakkaishi1993，19，10： | 1 |
| 9 | The Large Compressive Deformation of Wood in the Transverse Direction (Ⅱ): Sress-strain Diagram with Increasing Loading Cycles显示文摘 | Liu Yixing Norimoto Misato Morooka Toshiro | 1995 | Wood Research and Technical Notes1995，，31： | 1 |
| 10 | High-entropy-alloy nanoparticles with 21 ultra-mixed elements for efficient photothermal conversion显示文摘Multi-metallic nanoparticles have been proven to be an efficient photothermal conversion material, for which the optical absorption can be broadened through the interband transitions(IBTs), but it remains a challenge due to the strong immiscibility among the repelling combinations. Here, assisted by an extremely high evaporation temperature, ultra-fast cooling and vapor-pressure strategy, the arc-discharged plasma method was employed to synthesize ultra-mixed multi-metallic nanoparticles composed of 21 elements(FeCoNiCrYTiVCuAlNbMoTaWZnCdPbBiAgInMnSn), in which the strongly repelling combinations were uniformly distributed. Due to the reinforced lattice distortion effect and excellent IBTs, the nanoparticles can realize an average absorption of >92% in the entire solar spectrum(250 to 2500 nm). In particular, the 21-element nanoparticles achieve a considerably high solar steam efficiency of nearly 99%under one solar irradiation, with a water evaporation rate of 2.42 kg mh, demonstrating a highly efficient photothermal conversion performance. The present approach creates a new strategy for uniformly mixing multi-metallic elements for exploring their unknown properties and various applications. | Yijun Liao Yixing Li Rongzhi Zhao Jian Zhang Lizhong Zhao Lianze Ji Zhengyu Zhang Xiaolian Liu Gaowu Qin Xuefeng Zhang | 2022 | National Science Review2022，9，6： | 1 |
| 11 | Isolation and characteriza- tion of cellulose nanofibers from four plant cellulose fibers using a chemical-ultrasonic process显示文摘 | Chen Wenshuai Yu Haipeng Liu Yixing | 2011 | Cellulose2011，18，2： | 1 |
| 12 | Efficient removal of Cr(Ⅲ)-carboxyl complex from neutral and high-salinity wastewater by nitrogen doped biomass-based composites显示文摘Heavy metals usually exist stably as the species of organic complexes in high-salinity wastewater.Therefore,their effective removal is challenging,especially when the initial p H is neutral.Herein,a novel nitrogen doped biomass-based composite(N-CMCS)was synthesized to remove the complexed heavy metal of Cr(Ⅲ)-carboxyl.The maximum adsorption capacity of Cr(Ⅲ)-Citrate(Cr-Cit)by N-CMCS under neutral p H(7.0)and high-salinity(200 mmol/L NaCl)condition was up to 2.50 mmol/g.And the removal performance remained stable after 6 times of regeneration.Combined with species and characterizations analysis,electrostatic attraction and hydrogen bonding were the main mechanisms for N-CMCS to remove Cr(Ⅲ)-carboxyl complexes.Dynamic adsorption indicated N-CMCS column could treat about 1300BV simulated wastewater and 350 BV actual wastewater with the concentration of effluent lower than1.0 mg/L.Furthermore,N-CMCS could remove a variety of complexed heavy metal ions under neutral p H,indicating the great potential in practical application. | Li Song Shichao Jing Yixing Qiu Fuqiang Liu Aimin Li | 2023 | Chinese Chemical Letters2023，34，1： | 1 |
| 13 | Individualization of cellulose nanofibers from wood using higia-intensity uhrasonication combined with chemical pretreatments 显示文摘 | Chen Wenshuai Yu Haipeng Liu Yixing | 2011 | Carbohydrate Poly- mers2011，83，4： | 1 |
| 14 | Shrinkage stress of wood during drying under superheated steam above 100℃显示文摘 | Cheng Wanli Morook T Liu Yixing | 2004 | Holzforschung2004，58，4： | 1 |
| 15 | Performance of a periodic anaerobic baffled reactor fed on Chinese traditional medicine in-dustrial wastewater显示文摘 | Liu Xiaolei Ren Nanqi Yuan Yixing | 2009 | Bioresource Technology2009，100，1： | 1 |
| 16 | Performance of a periodic anaerobic baffled reactor fed on Chinese traditional medicine industrial wastewater显示文摘 | Xiaolei Liu Nanqi Ren Yixing Yuan | 2009 | BioresourceTechnology2009，100，1： | 1 |
| 17 | Measurement of the dynamic modulus of elasticity of wood panels显示文摘 | Zhenbo Liu Yixing Liu Haipeng Yu Junqi Yuan | 2006 | Frontiers of Forestry in China2006，，4： | 1 |
| 18 | shrinkage stress of wood during drying under superheated steam above 100℃ 显示文摘 | Cheng Wanli Morook T Liu Yixing | 2004 | Holzforschung2004，58，4： | 1 |
| 19 | Performance of a periodic anaerobic baffled reactor fed on Chinese traditional medicine industrial wastewater显示文摘 | LIU Xiaolei REN Nanqi YUAN Yixing | 2009 | Bioresour Technol2009，100，1： | 1 |
| 20 | Wood polymer composites prepared by in-situ polymerization of monomers within wood显示文摘 | LI Yongfeng LIU Yixing WANG Xiangming et at | 2011 | Journal of Applied Polymer Sci- ence2011，119，6： | 1 |
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