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| 1 | Mechanical Properties of Methane Hydrate-Bearing Interlayered Sediments显示文摘The complex distribution of gas hydrate in sediments makes understanding the mechanical properties of hydrate-bearing sediments a challenging task.The mechanical behaviors of hydrate-bearing interlayered sediments are still poorly known.A series of triaxial shearing tests were conducted to investigate the strength parameters and deformation properties of methane hydrate-bearing interlayered sediments at the effective pressure of 1 MPa.The results indicate that the stress-strain curves of hydrate-bearing interlayered sediments are significantly different from that of hydrate-bearing sediments.The peak strength,Young's modulus,initial yielding modulus,and failure mode are deeply affected by the methane hydrate distribution.The failure behaviors and mechanism of strain softening and hardening patterns of the interlayered specimens are more complicated than those of the integrated specimens.This study compares the different mechanical behaviors between integrated and interlayered specimens containing gas hydrate,which can serve as a reference for the prediction and analysis of the deformation behaviors of natural gas hydrate reservoirs. | DONG Lin LI Yanlong LIU Changling LIAO Hualin CHEN Guoqi CHEN Qiang LIU Lele HU Gaowei | 2019 | Journal of Ocean University of China2019，18，6： | 11 |
| 2 | Integrated modeling environment and a preliminary application on the Heihe River Basin, China显示文摘Environmental and water issues are essentially complex interdisciplinary problems. Multiple models from different disciplines are usually integrated to solve those problems. Integrated modeling environment is an effective technical approach to model integration. Although a number of modeling environments worldwide are available, they cannot meet current challenges faced. Their old-fashion designs and original development purposes constrain their possible applications to the domain of hydrologic or land surface modeling. One of the challenges is that we intend to link knowledge database or ontology system to the modeling environment in order to make the modeling support more intelligent and powerful. In this paper, we designed and implemented an integrated modeling environment (HIME) for hydrological and land surface modeling purpose in a much extendable, efficient and easy use manner. With such design, a physical process was implemented as a module, or component. A new model can be generated in an intuitive way by linking module icons together and establishing their relationships. Following an introduction to the overall architecture, the designs for module linkage and data transfer between modules are described in details. Using XML based meta-information, modules in either source codes or binary form can be utilized by the environment. As a demonstration, with the help of HIME, we replaced the evaporation module of TOPMODEL with the evapotranspiration module from the Noah land surface model which explicitly accounts for vegetation transpiration. This example showed the effectiveness and efficiency of the modeling environment on model integration. | NAN ZhuoTong SHU LeLe ZHAO YanBo LI Xin DING YongJian | 2011 | Science China(Technological Sciences)2011，54，8： | 8 |
| 3 | Prehistoric agriculture development in the Yunnan-Guizhou Plateau, southwest China: Archaeobotanical evidence显示文摘The origin, development and expansion of prehistoric agriculture in East Asia have been widely investigated over the past two decades using archaeobotanical analysis from excavated Neolithic and Bronze Age sites. Research on prehistoric agriculture has predominantly focused in the valleys of the Yellow River and the Yangtze River. Agricultural development during the Neolithic and Bronze Age periods in the Yunnan-Guizhou Plateau of southwest China, an important passageway for human migration into Southeast Asia, still remains unclear. In this paper, based on macrofossil and microfossil analysis and radiocarbon dating at the Shilinggang site, we investigate plant subsistence strategies in the Nujiang River valley during the Bronze Age period. Combined with previous archaeobotanical studies in the Yunnan-Guizhou Plateau, we explore agricultural development processes in this area during the Neolithic and Bronze Age. Our results indicate that rice and foxtail millet were cultivated in Shilinggang around 2500 cal a BP. Three phases of prehistoric agricultural development in the Yunnan-Guizhou Plateau can be identified: rice cultivation from 4800–3900 cal a BP, mixed rice and millet crop(foxtail millet and broomcorn millet) cultivation from 3900–3400 cal a BP, and mixed rice, millet crop and wheat cultivation from 3400–2300 cal a BP. The development of agriculture in the Yunnan-Guizhou Plateau during the Neolithic and Bronze Age periods was primarily promoted by prehistoric agriculture expansion across Eurasia, agricultural expansion which was also affected by the topographic and hydrological characteristics of the area. | LI HaiMing ZUO XinXin KANG LiHong REN LeLe LIU FengWen LIU HongGao ZHANG NaiMeng MIN Rui LIU Xu DONG GuangHui | 2016 | Science China Earth Sciences2016，59，8： | 6 |
| 4 | Central precocious puberty as a prelude of gonad dysplasia显示文摘There is increasing evidence that patients with gonad dysplasia,as characterized by absent or incomplete puberty,can also exhibit central precocious puberty(CPP).Herein,we review the reported cases that manifest with both gonad dysplasia and CPP.Further,we examine the hypothesis that these patients exhibit a normal hypothalamic-pituitarygonadal axis,hypogonadism,and the presence of residual gonadal function,and that the onset of disease is related to early initiation of the hypothalamic-pituitary-gonadal axis.Thus,we suggest that CPP is a prelude of some partial hypogonadism. | Lele Li Chunxiu Gong | 2019 | Pediatric Investigation2019，3，1： | 6 |
| 5 | Effects of grain boundary ternary alloy doping on corrosion resistance of(Ce,Pr,Nd)-Fe-B permanent magnets显示文摘To satisfy the application of different environments,grain boundary doping is commonly used in the preparation of sintered magnets to improve the coercivity and the corrosion resistance.In this paper,the alloys were prepared by mixing different ratios of the master alloy(Ce,Pr,Nd)-Fe-B and the sintering aid(Pr,Nd)-Al.The coercivity of sintered(Ce,Pr,Nd)-Fe-B magnet is substantially enhanced by doping 2 wt%of(Pr,Nd)-Al,while the maximum energy product decreases slightly.We systematically investigated the corrosion behavior and micro structure of the sintered magnets in order to determine the mechanism of the degradation.The sintered(Ce,Pr,Nd)-Fe-B magnets with 2 wt% of(Pr,Nd)-Al addition exhibit the decreasing corrosion rate compared with others,due to the distribution of intergranular phases.The electrode potential difference between the main phase and the RE-rich phase is reduced by the addition of Al,improving the potential and stability of RE-rich phase due to the higher electrode potential of Al than that of Nd,Pr or Ce.In addition,the element distribution of the magnets doped by(Pr,Nd)-Al indicates that the Al-rich shell formed at the marginal area of the Ce-rich phase improves its stability.Therefo re,intergranular adding te rnary(Pr,Nd)-Al alloy powders results in both high coe rcivity and good corrosion resistance synchronously. | Xin Wang Minggang Zhu Feng Xi Meiling Zhang Fei Liu Yingjian Guo Lele Zhang Guangrui Zhang Wei Li | 2021 | Journal of Rare Earths2021，39，8： | 6 |
| 6 | Refined chronology of prehistoric cultures and its implication for re-evaluating human-environment relations in the Hexi Corridor,northwest China显示文摘The reconstruction of high-resolution chronologies for prehistoric cultures is a prerequisite for understanding the history of human evolution and its relationship with environmental change, and is valuable for exploring the trajectory of transcontinental cultural exchanges in prehistoric time. The Hexi Corridor of northwest China was one of the earliest centers for long-distance culture exchange in the prehistoric world. The timing and sequence of cultural changes in this area remains poorly understood resulting from the lack of radiometric age control. This paper presents a refined radiocarbon(14 C) chronology to resolve the timing of human occupation and cultural evolution in the Hexi Corridor. Radiocarbon dating of crop remains, which have an annual life cycle, has the advantage of eliminating problems such as the carbon stored in ‘old wood’. As a result,14C dates from crop remains are used to test the validity of the14C dates derived from charcoal, bone and plant remains. The resultant database of ages is modelled using the Bayesian approach. The updated chronology presented in this paper shows generally good agreement with the original dates used to constrain cultural evolution in the Hexi Corridor. However, the occupation of the corridor by the Shajing and Shanma Late Bronze Age-Early Iron Age cultures appears to have taken place ~300 years later than previously thought. On the basis of comparing this updated chronology of cultural evolution with palaeoclimatic and historical records, it is proposed that the collapse of the Shajing and Shanma cultures occurred as a result of geopolitical impact rather than climate change. | Yishi YANG Shanjia ZHANG Chris OLDKNOW Menghan QIU Tingting CHEN Haiming LI Yifu CUI Lele REN Guoke CHEN Hui WANG Guanghui DONG | 2019 | Science China Earth Sciences2019，62，10： | 5 |
| 7 | Effect of acupuncture therapies combined with usual medical care on knee osteoarthritis显示文摘OBJECTIVE: To observe the effect of acupuncture or electroacupuncture(EA) combined with usual medical care for treating knee osteoarthritis(KOA).METHODS: A total of 90 patients with KOA were randomly allocated to 3 groups: usual care group(UC group, n = 30) was treated by pharmacological treatment of non-steroidal anti-inflammatory drugs(NSAIDs) and drugs for activating blood circulation(Ds-ABC), acupuncture(AP) combined with usual care group(UC group)(AP + UC group, n =30) and EA combined with UC group(EA + UC group, n = 30). The primary outcome measurements included pain visual analogue scale/score(VAS), Western Ontario and McMaster Universities Osteoarthritis Index(WOMAC Index) and its subscales. Secondary outcome measurement was Assessment of Quality of Life instrument version of the 36-item Short Form Health Survey(AQoL-SF36).RESULTS: By the end of the 1 st week, AP + UC group and EA + UC group exhibited statistically significant improvements in primary outcome measures, except for WOMAC stiffness, compared with the UC group(P < 0.05). Moreover, the energy/fatigue domain of AQoL-SF36 in the AP + UC group showed better results than UC group(P < 0.05). By the end of the 2 nd week, all the primary outcome measures revealed that either the AP + UC or EA +UC group demonstrating remarkable advantages compared with the UC group(P < 0.05). The social functioning and general health domains of AQoLSF36 in the two acupuncture-intervention groups were improved significantly than UC group(P <0.05). We also found the energy/fatigue and emotional wellbeing domains of AQoL-SF36 in the EA +UC group demonstrated better results than UC group(P < 0.05).CONCLUSION: AP or EA combined with usual care is more effective than usual care alone for the treatment of KOA, the intervention of electric current in the process of acupuncture may improve more domains of AQoL-SF36 in KOA patients. | Zhang Lele Yuan Haixin Zhang Lei Li Jian Li Hongmei | 2019 | Journal of Traditional Chinese Medicine2019，39，1： | 5 |
| 8 | Effects of propofol on early and late cytokines in lipopolysaccharideinduced septic shock in rats显示文摘Objective:It has been reported that the intravenous anesthetic propofol(PPF)has anti-inflammatory effects in vitro and in patients.The purpose of this study was to investigate whether PPF has anti-inflammatory effects in lipopolysaccharide(LPS)-induced septic shock by inhibiting the induction of pro-inflammatory cytokinesinterleukin-6(IL-6)and tumor necrosis factor-α(TNF-α)and high mobility group box 1(HMGB1)in rats.Methods:Thirty six male Wistar rats were randomly assigned to one of three groups(control group,PPF+LPS group and LPS group;n=12 per group).Control group rats received a 0.9%NaCl solution(NS)by the tail vein.The PPF+ LPS group rats received PPF(10 mg/kg bolus,followed by infusion at 10 mg/(kg·h)through a femoral vein catheter)1 h before LPS(7.5 mg/kg)administration via the tail vein.The LPS group rats received injection of LPS(7.5 mg/kg)via the tail vein.Hemodynamic effects were recorded as well as mortality rates,and plasma cytokine concentrations(TNF-α,IL-6,HMGB1)were measured for the 24-h observation period.Results:The mean arterial pressure and heart rate of the PPF+LPS group were more stable than those of the LPS group.The mortality at 24 h after the administration of the LPS injection was much higher in the LPS group(58.3%)compared to the PPF+ LPS group(25.0%).Plasma concentrations of cytokines(IL-6 and TNF-α)and HMGB1 were significantly reduced in the PPF+LPS group compared to the LPS group(P<0.05).Conclusion:Pretreatment with PPF reduced the mortality rate of rats and attenuated the pro-inflammatory cytokine responses in an endotoxin shock model through an anti-inflammatory action inhibiting induction of HMGB1. | Sha Li Hongguang Bao Liu Han Lele Liu | 2010 | The Journal of Biomedical Research2010，24，5： | 4 |
| 9 | Online adaptive Q-learning method for fully cooperative linear quadratic dynamic games显示文摘A model-based offline policy iteration(PI) algorithm and a model-free online Q-learning algorithm are proposed for solving fully cooperative linear quadratic dynamic games. The PI-based adaptive Q-learning method can learn the feedback Nash equilibrium online using the state samples generated by behavior policies, without sending inquiries to the system model. Unlike the existing Q-learning methods, this novel Q-learning algorithm executes both policy evaluation and policy improvement in an adaptive manner.We prove the convergence of the offline PI algorithm by proving its equivalence to Newton’s method while solving the game algebraic Riccati equation(GARE). Furthermore, we prove that the proposed Q-learning method will converge to the Nash equilibrium under a small learning rate if the method satisfies certain persistence of excitation conditions, which can be easily met by suitable behavior policies. Our simulation results demonstrate the good performance of the proposed online adaptive Q-learning algorithm. | Xinxing LI Zhihong PENG Lei JIAO Lele XI Junqi CAI | 2019 | Science China(Information Sciences)2019，62，12： | 4 |
| 10 | DNA-mediated coordinative assembly of upconversion hetero-nanostructures for targeted dual-modality imaging of cancer cells显示文摘superstructures has enormous potential in material sciences and engineering. Despite the potential,controlled assembly of different kinds of NPs into spatially addressable hybrid configurations still remains a formidable challenge. Herein, we report a simple and universal strategy for DNA-mediated assembly of CdTe quantum dots(QDs) and lanthanide-doped upconversion nanoparticles(UCNPs). Such DNA-QD/UCNPs heterostructures not only maintains both fluorescent properties of QDs and upconversion luminescence behaviors of UCNPs, but also offers a polyvalent DNA surface, allowing for targeted dual-modality imaging of cancer cells using an aptamer. The hetero-assembly mediated by the DNA à inorganic interfacial interaction may provide a scalable way to fabricate hybrid superstructures of both theoretical and practical interests. | Wenting Xue Zhenghan Di Ya Zhao Aiping Zhang Lele Li | 2019 | Chinese Chemical Letters2019，30，4： | 4 |
| 11 | Mechanisms of Traditional Chinese Medicine Bushenantai granules(补肾安胎颗粒) in promoting angiogenesis at the maternal-fetal interface of recurrent spontaneous abortion mice显示文摘OBJECTIVE:To assess the effects of Bushenantai(BSAT)granule(补肾安胎颗粒)on angiogenesis-related factors[E2,P,and vascular endothelial growth factor(VEGF)]at the maternal-fetal interface of recurrent spontaneous abortion(RSA)mice,and to evaluate the role of BSAT in promoting angiogenesis at the maternal-fetal interface by influencing the expression of sex hormones,and VEGF.METHODS:A mouse model with normal pregnancy and another with Clark’s classic RSA were established.The RSA mice were randomly assigned to six groups:normal,model,progesterone,high-doseBSAT granule(BSAT-H),medium-dose-BSAT granule(BSAT-M),and low-dose-BSAT granule(BSAT-L)(n=10 for each group).The embryo loss rate and the histopathological changes in the decidual tissues were measured.Serum levels of estrogen(E2),progesterone(P),and VEGF were detected by enzyme-linked immunosorbent assay.The m RNA and protein expressions of estradiol receptor(ER),progesterone receptor(PR),VEGF,and vascular endothelial growth factor receptor 2(VEGFR2)in the decidual tissues were identified by immunohistochemistry,Western blotting,and quantitative reverse transcription polymerase chain reaction.RESULTS:The embryo loss rate in all groups that received BSAT treatment was reduced,while the number of blood vessels at decidual tissues was increased.The serum levels of E2,P and VEGF were elevated,and the m RNA and protein expressions of ER,PR,VEGF,and VEGFR2 in the decidual tissues were enhanced.CONCLUSION:BSAT can improve angiogenesis at the maternal-fetal interface and reduce the embryo loss rate,which may be associated with its ability to increase the serum levels of estrogen,progesterone,and VEGF,in addition to up-regulation of m RNA and protein expression of ER,PR,VEGF,and VEGFR2 in the decidual tissues. | LI Yuanqi LI Weili YU Xinhui WU Hua WANG Yuanzhong JIN Ya HAO Lele LIU Mingmin SONG Xiaoge | 2021 | Journal of Traditional Chinese Medicine2021，41，4： | 3 |
| 12 | Oxygen‑Deficient β‑MnO_(2)@Graphene Oxide Cathode for High‑Rate and Long‑Life Aqueous Zinc Ion Batteries显示文摘Recent years have witnessed a booming interest in grid-scale electrochemical energy storage,where much attention has been paid to the aqueous zinc ion batteries(AZIBs).Among various cathode materials for AZIBs,manganese oxides have risen to prominence due to their high energy density and low cost.However,sluggish reaction kinetics and poor cycling stability dictate against their practical application.Herein,we demonstrate the combined use of defect engineering and interfacial optimization that can simultaneously promote rate capability and cycling stability of MnO_(2) cathodes.β-MnO_(2) with abundant oxygen vacancies(VO)and graphene oxide(GO)wrapping is synthesized,in which VO in the bulk accelerate the charge/discharge kinetics while GO on the surfaces inhibits the Mn dissolution.This electrode shows a sustained reversible capacity of~129.6 mAh g^(−1) even after 2000 cycles at a current rate of 4C,outperforming the state-of-the-art MnO_(2)-based cathodes.The superior performance can be rationalized by the direct interaction between surface VO and the GO coating layer,as well as the regulation of structural evolution ofβ-MnO_(2) during cycling.The combinatorial design scheme in this work offers a practical pathway for obtaining high-rate and long-life cathodes for AZIBs. | Shouxiang Ding Mingzheng Zhang Runzhi Qin Jianjun Fang Hengyu Ren Haocong Yi Lele Liu Wenguang Zhao Yang Li Lu Yao Shunning Li Qinghe Zhao Feng Pan | 2021 | Nano-Micro Letters2021，13，11： | 3 |
| 13 | Geology and Lead-Sulphur Isotope Compositions of the Tongyu Volcanic-Hosted Massive Sulphide Copper Deposit in the Western Part of the North Qinling Orogen, China显示文摘The Tongyu copper deposit, located in the western part of the North Qinling Orogen, China, is one of several volcanic-hosted massive sulphide(VHMS) deposits with industrial value and is also a typical example of mineralization related to the subduction and metallogenesis during the Caledonian orogeny. We conducted systematic lead-sulphur isotope geochemical analyses of the Tongyu deposit to understand the possible ore-forming material sources and tectonic settings. Twenty-six sulphide samples yielded clustered δ^(34)S_(CDT) values of 1.13‰-3.36‰, average 2.22‰, and show a tower-type distribution,implying that the sulphur of the Tongyu copper deposit mainly originated from a mantle source. The Pb isotope compositions of sulphides(^(206)Pb/^(204)Pb = 17.59225-18.56354, average 18.32020; ^(207)Pb/^(204)Pb =15.51770-15.69381, average 15.66217; ^(208)Pb/^(204)Pb= 37.99969-39.06953, average 38.52722) are close to the values of the volcanic host rocks(^(206)Pb/^(204)Pb= 18.10678-18.26293, average 18.21158; ^(207)Pb/^(204)Pb =15.63196-15.68188, average 15.65345; ^(208)Pb/^(204)Pb= 38.43676-38.56360, average 38.49171), thus consistent with the Pb in ores and volcanic host rocks having been derived from a common source that was island-arc Pb related to oceanic crust subduction. The northward subduction of the Palaeo-Qinling oceanic crust triggered dehydration of the slab, which generated a large amount of high-oxygen-fugacity aqueous hydrothermal fluid. The fluid rose into the mantle wedge, activated and extracted metallogenic material and promoted partial melting of the mantle wedge. The magma and ore-forming fluid welled up and precipitated, finally forming the Tongyu VHMS copper deposit. | GONG Hujun ZHU Laimin LI Ben XIONG Xiao DING Lele | 2017 | Acta Geologica Sinica(English Edition)2017，91，5： | 3 |
| 14 | Development of a Label-Free Colorimetric Aptasensor with Rationally Utilized Aptamer for Rapid Detection of Okadaic Acid显示文摘Okadaic acid(OA)is a typical marine toxin with strong toxicity causing diarrheic shellfish poisoning(DSP).Aptamers show great advantages in toxin detection and attract increasing attentions in the field of food analysis.In this study,a label-free col-orimetric aptasensor was constructed for visual and rapid detection of OA in shellfish.To exploit the binding capability of the anti-OA aptamer,the inherent molecular recognition mechanism of aptamer and OA was studied,based on molecular docking,fluorescent assay,and biolayer interferometry.Consistent results showed that the stem-loop near the 3’terminal of the aptamer exhibit dominate binding capacity.Based on the revealed recognition information,the aptamer was thus rationally utilized and combined with AuNPs and cationic polymer polydiallyl dimethyl ammonium chloride(PDDA)for the development of the label-free colorimetric aptasensor,in which the 3’terminal was thoroughly exposed to OA.The aptasensor provided robust performance with a linear detection range of 100-1200 nmol L-1,a limit of detection of 41.30 nmol L-1,recovery rates of 91.6%-106.2%,as well as a high selectivity towards OA in shellfish samples.The whole detection process can be completed within 1 h.To our best knowledge,this is the first time that the anti-OA aptamer was thoroughly studied,and a label-free colorimetric aptasensor was rationally designed in this way.This study not only provides a rapid detection method for highly sensitive and specific detection of OA,but also serves as a reference for the design of efficient aptasensors in the future. | YAN Xiaochen QI Xiaoyan ZHAO Yinglin LI Ling MA Rui WANG Lele WANG Sai MAO Xiangzhao | 2022 | Journal of Ocean University of China2022，21，2： | 2 |
| 15 | Big data analysis of the human brain's functional interactions based on fMRI显示文摘The human brain is a huge,complex system generating brain activity.The exploration of human brain function using functional magnetic resonance imaging(f MRI) is a promising method to understand brain activity.However,the complexity of the big data generated by f MRI facilitates the analysis of various levels of human brain activity,such as the distribution of neural representations,the interaction between different regions,and the dynamic interaction over time.These different levels can depict distinct prospects of the human brain activity,and considerable progress has been achieved.In the future,more big data analysis methods combining advances in computer science,including larger-scale computing,machine learning,and graph theory,will promote the understanding of the human brain. | Xia Wu Lele Xu Li Yao | 2014 | Chinese Science Bulletin2014，59，35： | 2 |
| 16 | Advancing the incremental fusion of robotic sensory features using online multi-kernel extreme learning machine显示文摘 | Lele CAO Fuchun SUN Hongbo LI Wenbing HUANG | 2017 | Frontiers of Computer Science2017，11，2： | 2 |
| 17 | Synthesis of Environmentally Friendly Magnesium Linoleate Detergent显示文摘This paper mainly covers a method for preparing a highly alkaline magnesium linoleate solution with a total base number(TBN) value of 328 mg KOH/g using linoleic acid as the biodegradable raw material, which can substitute for traditional lubricant detergents as an environmentally friendly detergent. Reaction conditions, including the molar ratio of magnesium oxide to linoleic acid, the molar ratio of methanol to magnesium oxide, the carbonation temperature, the molar ratio of water to magnesium oxide, the flow rate of CO2 gas and the duration for injection of CO2 to magnesium oxide system, were optimized. | Wang Yonglei Li Haiyun Fang Hongxia Ni Zhifei Zhao Lele | 2014 | China Petroleum Processing & Petrochemical Technology2014，16，1： | 2 |
| 18 | Effects of ZnCl2/H2O/C2H5OH Treatment on the Filter Paper Performance显示文摘Bleached softwood kraft pulp (BSKP) fibers were pretreated in a 5 mol/L NaOH aqueous solution at 35℃ for 90 min. The ZnCl2/H2O/ C2H5OH was used to treat the pretreated BSKP fibers, filter papers were then prepared. In the course of processing, the effects of various molar ratios of ZnCl2/H2O/C2H5OH on the filter paper performance were evaluated. SEMEDX was conducted to analyze the physical configuration of the filter papers. Moreover, FT-IR and XPS were performed to further characterize the BSKP, the pretreated BSKP and the filter paper fibers. The results indicated that the fibers treated by ZnCl2/H2O/C2H5OH were swollen and exhibited slight fibrillation, leading to a looser fiber structure and therefore, enhanced filter paper performance. Air permeability increased from 161.7 L/(m2·s) to 1450.4 L/(m2·s) for the filter papers when the molar ratio of ZnCl2/H2O/C2H5OH was 1:14:1. The optimum molar ratio of ZnCl2/H2O/C2H5OH was found to be 1:14:1, and no significant effect of ZnCl2/H2O/C2H5OH on fibers’ functional groups was detected. These results showed that filtration performance of filter papers was improved when treated with the ZnCl2/H2O/C2H5OH solution. | Lele Cao Lisheng Tang Qing Li Wenbo Liu | 2019 | Paper And Biomaterials2019，4，3： | 2 |
| 19 | Arctic sea ice concentration retrieval using the DT-ASI algorithm based on FY-3B/MWRI data显示文摘Sea ice concentration(SIC)is one of the most important indicators when monitoring climate changes in the polar region.With the development of the Chinese satellite technology,the Feng Yun(FY)series has been applied to retrieve the sea ice parameters in the polar region.In this paper,to improve the SIC retrieval accuracy from the passive microwave(PM)data of the Microwave Radiation Imager(MWRI)aboard on the Feng Yun-3 B(FY-3 B)Satellite,the dynamic tie-point(DT)Arctic Radiation and Turbulence Interaction Study(ARTIST)Sea Ice(ASI)(DT-ASI)SIC retrieval algorithm is applied and obtained Arctic SIC data for nearly 10 a(from November 18,2010 to August 19,2019).Also,by applying a land spillover correction scheme,the erroneous sea ice along coastlines in melt season is removed.The results of FY-3 B/DT-ASI are obviously improved compared to that of FY-3 B/NT2(NASA-Team2)in both SIC and sea ice extent(SIE),and are highly consistent with the results of similar products of AMSR2(Advanced Microwave Scanning Radiometer 2)/ASI and AMSR2/DT-ASI.Compared with the annual average SIC of FY-3 B/NT2,our result is reduced by 2.31%.The annual average SIE difference between the two FY-3 Bs is 1.65×10^(6) km^(2),of which the DT-ASI algorithm contributes 87.9%and the land spillover method contributes12.1%.We further select 58 MODIS(Moderate-resolution Imaging Spectroradiometer)cloud-free samples in the Arctic region and use the tie-point method to retrieve SIC to verify the accuracy of these SIC products.The root mean square difference(RMSD)and mean absolute difference(MAD)of the FY-3 B/DT-ASI and MODIS results are 17.2%and 12.7%,which is close to those of two AMSR2 products with 6.25 km resolution and decreased 8%and 7.2%compared with FY-3 B/NT2.Further,FY-3 B/DT-ASI has the most significant improvement where the SIC is lower than 60%.A high-quality SIC product can be obtained by using the DT-ASI algorithm and our work will be beneficial to promote the application of Feng Yun Satellite. | Hairui Hao Jie Su Qian Shi Lele Li | 2021 | Acta Oceanologica Sinica2021，40，11： | 2 |
| 20 | Retrieval of Snow Depth on Sea Ice in the Arctic Using the FengYun-3B Microwave Radiation Imager显示文摘Snow on sea ice is a sensitive indicator of climate change because it plays an important role regulating surface and near surface air temperatures. Given its high albedo and low thermal conductivity, snow cover is considered a key reason for amplified warming in polar regions. This study focuses on retrieving snow depth on sea ice from brightness temperatures recorded by the Microwave Radiation Imager(MWRI) on board the FengYun(FY)-3 B satellite. After cross calibration with the Advanced Microwave Scanning Radiometer-EOS(AMSR-E) Level 2 A data from January 1 to May 31, 2011, MWRI brightness temperatures were used to calculate sea ice concentrations based on the Arctic Radiation and Turbulence Interaction Study Sea Ice(ASI) algorithm. Snow depths were derived according to the proportional relationship between snow depth and surface scattering at 18.7 and 36.5 GHz. To eliminate the influence of uncertainties in snow grain sizes and sporadic weather effects, seven-day averaged snow depths were calculated. These results were compared with snow depths from two external data sets, the IceBridge ICDIS4 and AMSR-E Level 3 Sea Ice products. The bias and standard deviation of the differences between the MWRI snow depth and IceBridge data were respectively 1.6 and 3.2 cm for a total of 52 comparisons. Differences between MWRI snow depths and AMSR-E Level 3 products showed biases ranging between-1.01 and-0.58 cm, standard deviations from 3.63 to 4.23 cm, and correlation coefficients from 0.61 to 0.79 for the different months. | LI Lele CHEN Haihua GUAN Lei | 2019 | Journal of Ocean University of China2019，18，3： | 2 |
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