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| 1 | Functional exhaustion of antiviral lymphocytes in COVID-19 patients显示文摘In December 2019,a novel coronavirus was first reported in Wuhan,China.1 It was named by the World Health Organization as severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)and is responsible for coronavirus disease 2019(COVID-19).Up to 28 February 2020,79,394 cases have been confirmed according to China’s National Health Commission.Outside China,the virus has spread rapidly to over 36 countries and territories. | Yuanhong Xuand Zhigang Tian Meijuan Zheng Yong Gao Gang Wang Guobin Song Siyu Liu Dandan Sun Yuanhong Xu Zhigang Tian | 2020 | Cellular & Molecular Immunology2020，17，5： | 54 |
| 2 | Oscillation of Solutions of Nonlinear Partial Differential Equations of Neutral Type | Yu Yuanhong Liu Bin Liu Zhengrong Institute of Applied Mathematics, Academia Sinica, Beijing 100080, China Department of Mathematics, Hubei Normal College, Huangshi 435002. China Department of Mathematics, Yunnan University. Kunming 650091. China Institute of Applied Mathematics of Yunnan Province, Kunming 650091, China | 1997 | Acta Mathematica Sinica,English Series1997，13，4： | 39 |
| 3 | Use of Controlled Release Fertilizer for Increasing N Efficiency of Direct Seeding Rice显示文摘Field trials on a silt-loamy paddy soil derived from shallow-sea deposit in direct seeding rice fields were conducted in Zhejiang, China, in 1996 to compare N efficiency of controlled release fertilizers (LP fertilizers) with the conventional urea. Six treatments including CK (no N fertilizer), conventional urea and different types of LP fertilizers at different rates were designed for two succeeding crops of early and late rice. A blend of different types of LP fertilizers as a single preplant 'co-situs' application released N in a rate and amount synchronizing with uptake pattern of direct seeding rice. A single preplant application of the LP fertilizers could meet the N requirement of rice for the whole growth period without need of topdressing. Using LP fertilizer blends, equivalent grain yields could be maintained even if the N fertilization rates were reduced by 25%~50% compared with the conventional urea. Agronomic efficiency of the LP fertilizers was 13.6%~ 86.4% higher than that of the conventional urea in early rice and 100%~164.1% in late rice, depending on the amounts of the LP fertilizers applied. N fertilizer recovery rate increased from 27.4% for the conventional application of urea to 41.7%~54.l% for the single preplant 'co-situs' application of the LP fertilizers. Use of the LP fertilizers was promising if the increase in production costs due to the high LP fertilizer prices could be compensated by increase in yield and N efficiency, reduction in labor costs and improvement in environment. | FU JIANRONG, ZHU YUANHONG and JIANG LINA Institute of Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021 (China) | 2001 | Pedosphere2001，11，4： | 27 |
| 4 | Zircon SHRIMP U-Pb dating of granites from Dulan and the chronological framework of the North Qaidam UHP belt, NW China显示文摘Zircon SHRIMP dating of granites from Dulan,east segment of North Qaidam UHP belt shows that they are 406.6±3.5 Ma for Yematan-E,407.3±4.3 and 397±6 Ma for Balijiehatan-W,404.5±4.0 and 397.0±3.7 Ma for Shuiwenzhan-N,380.5±5.0 Ma for Shuiwenzhan-S,382.5±3.6 and 372.5±2.8 Ma for Chachagongma.These granites from Dulan represent the products of the third and fourth periods of Paleozoic magmatism in North Qaidam.Geochemically,the granitoids with metalumious to weak peratuminous are quartz diorite,granodiorite,and granite in composition and mainly belong to calc-alkaline series,a few samples to calc or alkali-calc series.The third period of granites is a rock association of granodiorite+granite,with initial 87Sr/86Sr ratios from 0.7082 to 0.7110 and T2DM model ages from 1.41–1.90 Ga;and the fourth period of granites is a rock association of quartz diorite+granodiorite+granite,with initial 87Sr/86Sr ratios from 0.7072 to 0.7091 and T2DM model ages from 1.07–1.38 Ga.Therefore,the third period of granites has higher initial 87Sr/86Sr ratios and T2DM model ages.On the contrary,the fourth period of granites has Nd(t)values from 0.6 to-3.0,higher than that of the third granite with Nd(t)values-3.2 to-9.3.Thus,the data comparison indicates that the third granites may derive from Paleo-proterzoic continental crust with mantle material whereas the fourth granites may derive from the Meso-proterzoic basalt crust with continental material.Combined with regional geology,we thought that the third granites were formed relative to plate exhumation and the fourth granites to delamination of the lithospheric mantle. | WU CaiLai GAO YuanHong LI ZhaoLi LEI Min QIN HaiPeng LI MinZe LIU ChunHua Ronald B FROST Paul T ROBINSON Joseph L WOODEN | 2014 | Science China Earth Sciences2014，57，12： | 21 |
| 5 | Effect of high-strength ammonia nitrogen acclimation on sludge activity in sequencing batch reactor显示文摘The effect of high-strength ammonia nitrogen acclimation on sludge activity in sequencing batch reactor (SBR) was investigated. Two batch experiments, RUN1 and RUN2, were conducted with the influent ammonia nitrogen concentrations 60 and 500 mg/L, respectively. The sludges inoculated from RUN1 and RUN2 were used to treat a series of influent with ammonia nitrogen concentrations of 59, 232, 368, 604 and 1152 mg/L. It is found that the activated sludge acclimated to higher ammonia nitrogen concentrations revealed higher COD and NH 4 + -N removal efficiencies, and slower DHA decrease. The results confirmed that the activities of the bacteria in activated sludge in SBR were inhibited by high-strength ammonia nitrogen, whereas the activated sludge acclimated to high-strength ammonia nitrogen showed substantial resistance to inhibition by influents containing high levels of ammonia nitrogen. | Feifei Wang, Yuanhong Ding, Lei Ge, Hongqiang Ren, Lili Ding State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, China. | 2010 | Journal of Environmental Sciences2010，22，11： | 12 |
| 6 | Vertical distribution characteristics of PM in the surface layer of Guangzhou显示文摘Measurements of particulate matter(PM),i.e.,PM10,PM2.5,and PMl,have been performed on the Canton Tower,a landmark building in Guangzhou,at heights of 121 and 454 m since November 2010,using a GRIMM 180 aerosol particle spectrometer(Germany).Analyses of data from November 2010 to May2013 showed that the annual average values of PM10,PM2.5,and PMl at the observation height of 121 m above the ground were 44.1,38.2,and 34.9μg/m3,respectively,and those at 454 m above the ground were 35.7,30.4,and 27.5 μg/m3,respectively.By considering the values of the secondary concentration limits given in the Ambient Air Quality Standards issued in 2012,it was observed that the annual average values of PM10 at the observation heights of 121 and 454 m,as well as those of PM2.5 at 454 m,reached those standards.Furthermore,the over-standard amplitude of the annual average value of PM2.5 at the observation height of 121 m was 9.1%.During the observation period,the maximum daily average values of PM10,PM2.5,and PM1 at the observation height of 121 m were 183.3,144.8,and 123.8 μg/m^3,respectively,and those at 454 m were 102.8,92.7,and 86.4 μg/m3.The daily average values of PM 10 at the observation height of 454 m were not above the standards.The over-standard frequencies of the daily average values of PM10 and PM2.5 at the observation height of 121 m were 0.6%and 10.7%,respectively,and the over-standard amplitudes were 9.0%and 24.4%,respectively.The over-standard frequency of the daily average value of PM2.5 at the observation height of 454 m was 2.0%,and the over-standard amplitude was 10.4%.Accordingly,it can be stated that the air at the observation height 454 m above the ground did not reach the secondary limit of the new standards.The pollution was most serious during winter,and the air was relatively cleaner during summer.Overall,the vertical distributions of PM 10,PM2.5,and PMl decreased with height.The lapse rates showed the following sequence:PM10 > PM2.5 > PM1,which indicates that the vertical distribution of fine particles is more uniform than that of coarse particles;the vertical distribution in summer is more uniform than in other seasons. | Xuejiao Deng Fei Li Yuanhong Li Jianyong Li Hongzhi Huang Xiantong Liu | 2015 | Particuology2015，13，3： | 10 |
| 7 | Synthesis, structure and luminescent properties of yellow phosphor La3Si6N11 :Ce^3+ for high power white-LEDs显示文摘A series of high phase purity blue light excitable yellow-emitting La_(3-x)Si_6 N_(11):xCe^(3+) phosphors were synthesized by the high temperature solid state reactions method. The structure and luminescent properties were investigated. The phase structure was studied by means of X-ray diffraction, structures refinements and energy dispersive X-ray spectroscopy. The phosphors effectively excited by the light of450 nm and show intense yellow emission at 535 nm with FWHM of 115 nm corresponding to the5 d →~2 F_(5/2) and 5 d →~2 F_(7/2) transitions of Ce^(3+). In addition,the optimized La_(2.86)Si_6 N_(11):0.14 Ce^(3+) exhibits a weak thermal quenching, which remains 98.2% of the initial emission intensity when heated to 200 ℃,the thermal quenching properties exhibit a modest decline when the temperature returned to room temperature. The above results indicate that La_3 Si_6 N_(11):Ce^(3+) can be regarded as a high promising phosphor for applications in high power white-light LED. | Fu Du Weidong Zhuang Ronghui Liu Yuanhong Liu Wei Gao Xia Zhang Yuan Xue Hongrui Hao | 2017 | Journal of Rare Earths2017，35，11： | 8 |
| 8 | Colorectal cancer, radiotherapy and gut microbiota显示文摘Colorectal cancer is closely related to inflammation and immune response. Radiotherapy, as a major treatment for colorectal cancer, plays a central role in cancer control. Inflammation caused by ionizing radiation can exert either anti-or pro-tumorigenic effects. Additionally, radiotherapy can elicit an anti-tumor response not only in radiation of target lesions but also in radiation of remote lesions. However, the immune mechanism underlying this effect has not been thoroughly elucidated yet. The combination therapeutic regimen of radiotherapy with other therapeutic methods, including chemotherapy and immunotherapy, has been applied in clinical practice. Meanwhile, radiation toxicity and radiosensitivity have long been problems that affect a patient's quality of life and morbidity.Researchers have found that the abovementioned problems are closely associated with gut microbiota. Here we discuss the impact of immune response induced by radiotherapy on tumor regression and the impact of intestinal flora on the consequent clinical efficacy. | Shu Zhang Qiaoxuan Wang Chengjing Zhou Kai Chen Hui Chang Weiwei Xiao Yuanhong Gao | 2019 | Chinese Journal of Cancer Research2019，31，1： | 8 |
| 9 | Exsolutions of Diopside and Magnetite in Olivine from Mantle Dunite,Luobusa Ophiolite,Tibet,China显示文摘摘要:透辉石和磁铁矿的 exsolutions 从披风纯橄榄岩在橄榄石以内作为共生交互生长和东方发生, Luobusa ophiolite,西藏。纯橄榄岩与橄榄石的一个矿物质集合是很新鲜的(>95%)+ 铬铁矿(1%-4%)+ 透辉石(<1%) 。橄榄石的二种类型在薄节被发现:(Fo=94 ) 是纹理粗糙的,与纽结乐队,起浪的扑灭和不规则的边缘的开发伸长了;并且其它(Fo=96 ) 有细密纹理、角度 poly。一些橄榄石谷物包含次要的 Ca, Cr 和 Ni。除在橄榄石的 exsolutions 以外,三微米尺寸包括也被发现。与单一的分析方法通过精力分析了散系统(版本) ,包括的平均作文:Na2O, 3.12%-3.84% ;MgO, 19.51%-23.79% ;Al2O3, 9.33%-11.31% ;SiO2, 44.89%-46.29% ;CaO, 11.46%-12.90% ;Cr2O3, 0.74%-2.29% ;FeO, 4.26%-5.27% ,它相当类似于闪石的那些。透辉石是在橄榄石之间充满的 anhedral,或同样微包括在橄榄石面向。铬铁矿出现 euhedral 在橄榄石之间散布了,有时与明显的组合地区。从核心减少到铬铁矿, Fe 内容增加和 Cr 的边界;并且艾尔和 Mg 在边界上极大地落下。总是在铬铁矿附近有不完全的磁铁矿地区。与在一样的节的榴状的铬铁矿相比, euhedral 铬铁矿有更高的 Fe3O4 和更低的 MgCr2O4 和 MgAl2O4 目的成员内容,它意味着它在更高的氧易逃逸环境下面形成了。与一个地温计评价,平衡水晶的温度是 820creasing 离子交换能力(IEC ) 。最高的质子电导率 w 癤?癤?? | REN Yufeng CHEN Fangyuan YANG Jingsui GAO Yuanhong | 2008 | Acta Geologica Sinica(English Edition)2008，82，2： | 8 |
| 10 | microRNA-218 suppresses the proliferation, invasion and promotes apoptosis of pancreatic cancer cells by targeting HMGB1显示文摘Objective: To detect the expression profiles of micro RNA-218(mi R-218) in human pancreatic cancer tissue(PCT) and cells and their effects on the biological features of human pancreatic cancer cell line PANC-1 and observe the effect of mi R-218 on the expression of the target gene high mobility group box 1(HMGB1), with an attempt to provide new treatment methods and strategies for pancreatic cancer.Methods: The expressions of mi R-218 in PCT and normal pancreas tissue as well as in various pancreatic cancer cell lines including As PC-1, Bx PC-3, and PANC-1 were determined with quantitative real-time reverse transcription polymerase chain reaction(q RT-PCR). The change of mi R-218 expression in PANC-1 cells was detected using qR T-PCT after the transfection of miR-218 mimic for 48 h. Cell Counting Kit-8(CCK-8) was applied for detecting the effect of mi R-218 on the activity of PANC-1 cells. The effects of mi R-218 on the proliferation and apoptosis of PANC-1 cells were analyzed using the flow cytometry. The effect of mi R-218 on the migration of PANC-1 cells was detected using the Trans-well migration assay. The HMGB1 was found to be a target gene of mi R-218 by luciferase reporter assay, and the effect of mi R-218 on the expression of HMGB1 protein in cells were determined using Western blotting.Results: As shown by q RT-PCR, the expressions of mi R-218 in PCT and in pancreatic cancer cell line significantly decreased when compared with the normal pancreatic tissue(NPT)(P<0.01). Compared with the control group, the miR-218 expression significantly increased in the PANC-1 group after the transfection of mi R-218 mimic for 48 h(P<0.01). Growth curve showed that the cell viability significantly dropped after the overexpression of mi R-218 in the PANC-1 cells for two days(P<0.05). Flow cytometry showed that the S-phase fraction significantly dropped after the overexpression of mi R-218(P<0.01) and the percentage of apoptotic cells significantly increased(P<0.01). As shown by the Trans-well migration assay, the enhanced mi R-218 expression was associated with a significantly lower number of cells that passed through a Transwell chamber(P<0.01). Luciferase reporter assay showed that, compared with the control group, the relative luciferase activity significantly decreased in the mi R-218 mimic group(P<0.01). As shown by the Western blotting, compared with the control group, the HMGB1 protein expression significantly decreased in the PANC-1 group after the transfection of mi R-218 mimic for 48 h(P<0.01).Conclusions: The mi R-218 expression decreases in human PCT and cell lines. mi R-218 can negatively regulate the HMGB1 protein expression and inhibit the proliferation and invasion of pancreatic cancer cells. A treatment strategy by enhancing the mi R-218 expression may benefit the patients with pancreatic cancer. | Zhe Liu Yuanhong Xu Jin Long Kejian Guo Chunlin Ge Ruixia Du | 2015 | Chinese Journal of Cancer Research2015，27，3： | 7 |
| 11 | Surface and tropospheric ozone trends in the Southern Hemisphere since 1990: possible linkages to poleward expansion of the Hadley circulation显示文摘Increases in free tropospheric ozone over the past two decades are mainly in the Northern Hemisphere that have been widely documented,while ozone trends in the Southern Hemisphere(SH)remain largely unexplained.Here we first show that in-situ and satellite observations document increases of tropospheric ozone in the SH over 1990–2015.We then use a global chemical transport model to diagnose drivers of these trends.We find that increases of anthropogenic emissions(including methane)are not the most significant contributors.Instead,we explain the trend as due to changes in meteorology,and particularly in transport patterns.We propose a possible linkage of the ozone increases to meridional transport pattern shifts driven by poleward expansion of the SH Hadley circulation(SHHC).The SHHC poleward expansion allows more downward transport of ozone from the stratosphere to the troposphere at higher latitudes,and also enhances tropospheric ozone production through stronger lifting of tropical ozone precursors to the upper troposphere.These together may lead to increasing tropospheric ozone in the extratropical SH,particularly in the middle/upper troposphere and in austral autumn.Poleward expansion of the Hadley circulation is partly driven by greenhouse warming,and the associated increase in tropospheric ozone potentially provides a positive climate feedback amplifying the warming that merits further quantification. | Xiao Lu Lin Zhang Yuanhong Zhao Daniel J.Jacob Yongyun Hu Lu Hu Meng Gao Xiong Liu Irina Petropavlovskikh Audra McClure-Begley Richard Querel | 2019 | Science Bulletin2019，64，6： | 7 |
| 12 | Broadband near-infrared luminescence and energy transfer of Cr^(3+),Ce^(3+) co-doped Ca_(2)LuHf_(2)Al_(3)O_(12) phosphors显示文摘Broadband near-infrared phosphors are highly desirable for food testing.Targeted Ca_(2)LuHf_(2)Al_(3)O_(12):Cr^(3+)(CLHA:Cr^(3+)) and Ca_(2)LuHf_(2)Al_(3)O_(12):Ce^(3+),Cr^(3+)(CLHA:Ce^(3+),Cr^(^(3+))) phosphors were synthesized by the conventional high-temperature solid state reaction.The CLHA:Cr^(3+)phosphor,with a good thermal stability,shows a red shift owing to radiation reabsorption and non-radiative transition with increasing Cr^(3+)content.For co-doped sample,the emission intensity of Cr^(3+)can be enhanced by three times due to the energy transfer from Ce^(3+)to Cr^(3+),which can be evidenced by a significant overlap between the PLE of Cr^(3+)single-doped phosphor and the PL of Ce^(3+)single-doped phosphor.In addition,the mechanism of energy transfer is identified as a quadrupole-quadrupole interaction according to decay Lifetime and Dexter’s energy transfer formula.The broadband NIR emission peaked at 775 nm of CLHA:Cr^(3+),Ce^(3+)phosphor shows a bright prospect in nondestructive quality-control analysis systems for food. | Jinpin Wu Weidong Zhuang Ronghui Liu Yuanhong Liu Tongyu Gao Chunpei Yan Min Cao Junhang Tian Xiaoxia Chen | 2021 | Journal of Rare Earths2021，39，3： | 6 |
| 13 | Total mesorectal excision with or without preoperative chemoradiotherapy for resectable mid/low rectal cancer: a long-term analysis of a prospective, single-center, randomized trial显示文摘Background:The preliminary results of our phase II randomized trial reported comparable functional sphincter pres-ervation rates and short-term survival outcomes between patients undergoing total mesorectal excision(TME)with or without preoperative concurrent chemoradiotherapy(CCRT).We now report the long-term results after a median follow-up of 71 months.Methods:Between March 23,2008 and August 2,2012,192 patients with T3-T4 or node-positive,resectable,mid/low rectal adenocarcinoma were randomly assigned to receive TME with or without preoperative CCRT.The following endpoints were assessed:cumulative rates of local recurrence and distant metastasis,disease-free survival(DFS),and overall survival(OS).Results:The data of 184 eligible patients were analyzed:94 patients in the TME group and 90 patients in the CCRT+TME group.In the whole cohort,the 5-year DFS and OS rates were 84.8%and 85.1%,respectively.The 5-year DFS rates were 85.2%in the CCRT+TME group and 84.3%in the TME group(P=0.969),and the 5-year OS rates were 83.5%in the CCRT+TME group and 86.5%in the TME group(P=0.719).The 5-year cumulative rates of local recur-rence were 6.3%and 5.0%(P=0.681),and the 5-year cumulative rates of distant metastasis were 15.0%and 15.7%(P=0.881)in the CCRT+TME and TME groups,respectively.No significant improvements in 5-year DFS and OS were observed with CCRT by subgroup analyses.Conclusions:Both treatment strategies yielded similar long-term outcomes.A selective policy towards preoperative CCRT is thus recommended for rectal cancer patients if high-quality TME surgery and enhanced chemotherapy can be performed. | Fulong Wang Wenhua Fan Jianhong Peng Zhenhai Lu Zhizhong Pan Liren Li Yuanhong Gao Hui Li Gong Chen Xiaojun Wu Peirong Ding Zhifan Zeng Desen Wan | 2018 | Cancer Communications2018，38，1： | 6 |
| 14 | White-light emitting single-phase phosphor La_3Si_6N_(11):Dy^(3+),Tb^(3+):Color tunable emission, thermal stability and energy transfer process显示文摘A novel white-light emitting single-phase phosphor La_3 Si_6 N_(11):Dy^(3+),exhibiting two emission peaks centering at 475 and 575 nm, was prepared via conventional solid-state reactions. The structure and morphology of La_3 Si_6 N_(11):Dy^(3+)/Tb^(3+) were investigated by X-ray diffraction(XRD) and scanning electron microscopy(SEM). The emission colors can be tuned from white to yellow-green through increasing the Tb^(3+) concentration in La_3 Si_6 N_(11):Dy^(3+),Tb^(3+), The mechanism of energy transfer(ET) from Dy^(3+) to Tb^(3+) is confirmed according to the excitation,emission spectra and decay lifetimes curve. The temperaturedependent luminescence measurements of La_(2.83)Si_6 N_(11):0.1 Dy^(3+),0.07 Tb^(3+) were also performed, and a good thermal stability is shown, suggesting superior properties for the application as white lightemitting diodes(w-LEDs) phosphor. | Yuanhong Liu Yuan Xue Ronghui Liu Mingyue Chen Guantong Chen Chunpei Yan Xia Zhang Yu'nan Zhou Wei Gao Xiaole Ma | 2019 | Journal of Rare Earths2019，37，4： | 5 |
| 15 | Synthesis,biological activities and 3D-QSAR studies of(R)-2-phenyl-4,5-dihydrothiazole-4-carboxamide derivatives containing a sulfur ether moiety显示文摘A series of(R)-2-phenyl-4,5-dihydrothiazole-4-carboxamide derivatives containing a sulfur ether moiety were synthesized and characterized on the basis of NMR and elemental analysis(EA). The crystal structure of(R)-N-(2-methyl-1-(methylthio)propan-2-yl)-2-(4-nitrophenyl)-4,5-dihydrothiazole-4-carboxamide(13 d) was determined to show R configuration. The bioasssy results indicated that most title compounds displayed good and broad spectrum antifungal activities against several phytopathogenic fungi. The structure activity relationships were discussed. Based on the antifungal activity of title compounds against Phytophthora capsici, a CoMSIA calculation was performed to establish a 3 D-QSAR model, which revealed that electrostatic and hydrophobic fields were the two most significant factors for antifungal activity. According to the established 3D-QSAR model, structure optimization was carried out to find(R)-N-((R)-1-(methylthio)propan-2-yl)-2-(p-tolyl)-4,5-dihydrothiazole-4-carboxamide(15 h)with excellent activity against Phytophthora capsici, thus emerging as a new lead compound for novel antiphytopathogenic fungus agent development. | Jingbo Liu Fengyun Li Yuanhong Wang Haoxuan Zhang Jingyue Dong Pengwei Sun Yuxin Li Zhengming Li | 2019 | Chinese Chemical Letters2019，30，3： | 5 |
| 16 | Synthesis, Microstructure and Optical Absorption of Coatings with Doping of Nano-TiO_2 for Protection Against UltravioletIrradiation显示文摘The synthesis of dispersions of MMA (methylmethacrylate) with different concentrations of oleic acid coated nano-TiO2 particles was performed by hydrolysis of TiCI4 in the mixture solutions of MMA, oleic acid and H2O with various concentrations. When MMA: oleic acid: H2O : TiCi4 =1.00: 0.064 : 0.01: 0.032 (by mol fraction), the dispersion of MMA with oleic acid coated nano-TiO2 particles was very stable. Optical absorption result showed that the absorption band was located in the ultraviolet range from 200 to 400 nm. This dispersion was added to a kind of automobile surface lustering agent (type II), and then this lustering agent with nano-TiO2 was coated on the surface of automobile surface paint. When the doping amount of the dispersion in the lustering agent=10 vol. pct, the state of paint (color and glossiness) did not present any change after irradiation of an ultraviolet lamp with the power of 1000 watt for two days. The sample with surface paint and lustering agent doped by 10 percent dispersion after suffering from irradiation of the sunlight for half a year (from May to November) kept the original state. However, for the samples with automobile paint and lustering agent without doping of nano- TiO2, the color and glossiness lost easily after irradiation of an ultraviolet lamp. These results prove that nano-TiO2 is a kind of high-efficient additive of paint for protection against ultraviolet irradiation. | Ye ZHANG and Lide ZHANG (Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China) Chimei MO, Yuanhong LI, Lianzeng YAO and Weili CAI (Department of Materials Science and Engineering, University of Science and Technology of China | 2000 | Journal of Materials Science & Technology2000，16，3： | 5 |
| 17 | Green and red phosphor for LED backlight in wide color gamut LCD显示文摘Wide color gamut(WCG) backlight for liquid crystal display(LCD) utilizing white light-emitting diodes(LED) has attracted considerable attention for their high efficiency and color reduction.In this review,recent developments in crystal structure,luminescence and applications of phosphors for wide color gamut LED backlight are introduced.As novel red phosphors,Mn4+activate fluoride and aluminate phosphors are advanced in quantum efficiency,thermal quenching and color saturation for their characteristic spectrum with broad excitation band and linear emission.The crystal structure and fluorescence properties of Mn4+doped fluosilicate,fluorogermanate,fluotitanate,as well as Sr4 Al14O25,CaAl12O19 and BaMgAl10O17 phosphors are discussed in detail.A serial of narrow-band red-emitting Eu2+,Eu3+and Pr3+-doped nitride silicates and molybdate phosphors are also introduced.Rare-earth-doped oxynitride and silicate green-emitting phosphors have attracted more and more attention because of the wide excitation,narrow emission,high quenching temperature,high quantum efficiency,such as β-sialon:Eu2+,Ba3Si6O12N2:Eu2+,MSi2O2N2:Eu2+(M=Ca,Sr,Ba),y-AlON:Mn2+and Ca3Sc2Si3O12:Ce3+.All above phosphors demonstrate their adaptability in wide color gamut LCD display.Especially for Mn4+doped fluosilicate red phosphor and β-sialon:Eu2+green phosphor.To achieve an ultra-high color gamut in white LED backlight and against the OLED,innovative narrow-band-emission red and green phosphor materials with independent intellectual property rights are continuously pursed. | Yunpeng Zhang Lin Luo Guantong Chen Yuanhong Liu Ronghui Liu Xiaochun Chen | 2020 | Journal of Rare Earths2020，38，1： | 4 |
| 18 | CFD-Based Optimization of Hot Primary-Air Pipe Networks in Power Plant Milling Systems显示文摘A hot primary-air pipe system is the bridge connecting an air-preheater with a coal mill in power generation stations.The effective geometrical configuration of the pipe network greatly affects the air flow distribution and consequently influences the safe and economic operation of milling systems in power stations.In order to improve the properties of the air flow,in the present work the SIMPLEC method is used to simulate numerically the flow field for the original layout of the system.As a result,the internal mechanisms influencing the uneven pressure drop in each branch are explored and three optimization schemes are proposed accordingly.The numerical results indicate that,for the original layout,the local pressure drop of the tee section accounts for approximately 74%of the total drop of the system,with other pressure drops depending on the specific branch considered.It is shown that after optimization,a roughly balanced flow resistance and flow rate can be obtained.Compared with the original layout,the pressure drop relating to different branches is significantly reduced. | Qingyun Yan You Li Yuanhong Zhu Kui Cheng Xueli Huang Cong Qi Xuemin Ye | 2020 | Fluid Dynamics & Materials Processing2020，16，3： | 4 |
| 19 | Toxoplasma gondii GRA15II effector-induced M1 cells ameliorate liver fibrosis in mice infected with Schistosomiasis japonica显示文摘Recent studies indicated that type II Toxoplasma gondii(Tg)GRA15II favored the generation of classically activated macrophages(M1),whereas type I/III TgROP16I/III promoted the polarization of alternatively activated macrophages(M2).A number of studies have demonstrated that M2 cells are involved in the pathogenesis of the liver fibrogenesis caused by Schistosoma japonicum.The purpose of the present study was to explore the inhibitory effect of Toxoplasma-derived TgGRA15II on mouse hepatic fibrosis with schistosomiasis.The gra15II and rop16I/III genes were amplified from strains T.gondii PRU and Chinese 1 Wh3,respectively.Lentiviral vectors containing the gra15II or rop16I/III plasmid were constructed and used to infect the RAW264.7 cell line.The polarization of the transfected cells was evaluated,followed by co-culture of the biased macrophages with mouse hepatic stellate JS1 cells.Then,mice were injected with GRA15II-driven macrophages via the tail vein and infected with S.japonicum cercariae.TgGRA15II induced a M1-biased response,whereas TgROP16I/III drove the macrophages to a M2-like phenotype.The in vitro experiments indicated that JS1 cell proliferation and collagen synthesis were decreased following co-culture with TgGRA15II-activated macrophages.Furthermore,mice inoculated with TgGRA15II-biased macrophages displayed a notable alleviation of collagen deposition and granuloma formation in their liver tissues.Our results suggest that TgGRA15II-induced M1 cells may dampen the M2 dominant pathogenesis of hepatic fibrosis and granulomatosis.These results provide insights into the use of parasite-derived immunomodulators as potential anti-fibrosis agents and to re-balance the schistosomiasis-induced immune response. | Yuanyuan Xie Huiqin Wen Ke Yan Shushu Wang Xuesong Wang Jian Chen Yuanling Li Yuanhong Xu Zhengrong Zhong Jilong Shen Deyong Chu | 2018 | Cellular & Molecular Immunology2018，15，2： | 4 |
| 20 | On the periodic solutions of a type of differential-iterative equations显示文摘Sufficient conditions for the existence of periodic solutions to a type of nonautonomous differential_iterative equations are given. | GE Weigao 1, LIU Zhengrong 2 and YU Yuanhong 3 1. Department of Applied Mathematics, Beijing Institute of Technology, Beijing 100081, China 2. Department of Mathematics, Yunnan University, Kunming 650091, China 3. Institute of Applied Mathematics, C | 1998 | Chinese Science Bulletin1998，43，3： | 4 |
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