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| 1 | Influence of Atmospheric Particulate Matter on Ozone in Nanjing,China:Observational Study and Mechanistic Analysis显示文摘Particulate matter with diameters of 2.5 μm or smaller(PM_(2.5)) and ozone(O_3) are major pollutants in the urban atmosphere. PM_(2.5) can affect O_3 by altering the photolysis rate and heterogeneous reactions. However, these two processes and their relative importance remain uncertain. In this paper, with Nanjing in China as the target city, we investigate the characteristics and mechanism of interactions between particles and O_3 based on ground observations and numerical modeling.In 2008, the average concentrations of PM_(2.5) and O_3 at Caochangmen station are 64.6 ± 47.4 μg m^(-3) and 24.6 ± 22.8 ppb,respectively, while at Pukou station they are 94.1 ± 63.4 μg m^(-3) and 16.9 ± 14.9 ppb. The correlation coefficient between PM_(2.5) and O_3 is -0.46. In order to understand the reaction between PM_(2.5) and O_3, we construct a box model, in which an aerosol optical property model, ultraviolet radiation model, gas phase chemistry model, and heterogeneous chemistry model,are coupled. The model is employed to investigate the relative contribution of the aforementioned two processes, which vary under different particle concentrations, scattering capability and VOCs/NOxratios(VOCs: volatile organic compounds;NOx: nitric oxide and nitrogen dioxide). Generally, photolysis rate effect can cause a greater O_3 reduction when the particle concentrations are higher, while heterogeneous reactions dominate O_3 reduction with low-level particle concentrations.Moreover, in typical VOC-sensitive regions, O_3 can even be increased by heterogeneous reactions. In Nanjing, both processes lead to O_3 reduction, and photolysis rate effect is dominant. Our study underscores the importance of photolysis rate effect and heterogeneous reactions for O_3, and such interaction processes should be fully considered in future atmospheric chemistry modeling. | Yawei QU Tijian WANG Yanfeng CAI Shekou WANG Pulong CHEN Shu LI Mengmeng LI Cheng YUAN Jing WANG Shaocai XU | 2018 | Advances in Atmospheric Sciences2018，35，11： | 33 |
| 2 | Isolation,characterization,and phylogenic analysis of three new severe fever with thrombocytopenia syndrome bunyavirus strains derived from Hubei Province,China显示文摘Hubei Province is a major epidemic area of severe fever with thrombocytopenia syndrome bunyavirus(SFTSV) in China. However, to date, a few SFTSV strains have been isolated from Hubei Province, preventing effective studies of epidemic outbreaks. Here, we report three confirmed patients(2015–2016) with typical symptoms of severe fever with thrombocytopenia syndrome disease(SFTS) who were farmers resident in different regions in Hubei Province. Three new SFTSV strains were isolated from the serum samples of each patient. Characterization of viral growth properties showed that there were no significant differences in virus production. All strains were completely sequenced, and phylogenetic analysis showed that unlike the other strains from Hubei province, which belonged to the SFTSV C3 genotype, one of the three strains belonged to the SFTSV C2 genotype. These results suggested that multiple SFTSV genotypes have been circulating in Hubei Province, providing insights into SFTSV evolution and improving our understanding of SFTSV prevalence in Hubei Province. | Yanfang Zhang Shu Shen Junming Shi Zhengyuan Su Mingyue Li Wenjing Zhang Mengmeng Li Zhihong Hu Cheng Peng Xin Zheng Fei Deng | 2017 | Virologica Sinica2017，32，1： | 21 |
| 3 | Effect of Ce doping into V_(2)O_(5)-WO_(3)/TiO_(2) catalysts on the selective catalytic reduction of NO_(x) by NH_(3)显示文摘In this work, the effectiveness of V_2O_5-WO_3/TiO_2 catalysts modified with different CeO_2 contents by impregnation and co-precipitation methods on the selective catalytic reduction of NOxby NH3 have been studied comparatively by various experimental techniques. The results showed that the NO conversion of V_2O_5-WO_3/CeO_2-TiO_2 catalysts modified by co-precipitation method obviously increased with the Ce doping contents in the studied range below 20%(All Ce contents are in mass fractions), but the NO conversion of V_2O_5-WO_3/CeO_2/TiO_2 catalysts modified by impregnation methods was lower than V_2O_5-WO_3/CeO_2-TiO_2 catalysts especially beyond 2.5% Ce doping contents. The V_2O_5-WO_3/CeO_2-TiO_2 catalysts showed better SCR activity, wider reaction window, and higher sulfur and water resistance. The characterization results elucidated that the modified catalysts by co-precipitation method exhibited higher specific surface area, much better dispersity of Ce component, more Ce^(3+)species and more Br?nsted acid sites than that by impregnation. The vacancies caused by more Ce^(3+)species were favorable for more NO oxidation to NO_2, and the interaction between Ce species and WOxspecies generated more Br?nsted acid sites. It could be supposed that dispersed Ce Oxspecies and WOxspecies offered more second active centers respectively to adsorb oxygen and activate ammonia as co-catalysis to the primary active center of V ions, thus facilitated the better SCR activity of modified V_2O_5-WO_3/CeO_2-TiO_2 catalysts by coprecipitation methods. The co-precipitation methods with Ce component were more suitable for production of modified commercial V_2O_5-WO_3/TiO_2 catalysts. | Mengyin Chen Mengmeng Zhao Fushun Tang Le Ruan Hongbin Yang Ning Li | 2017 | Journal of Rare Earths2017，35，12： | 18 |
| 4 | Functional traits of tree species with phylogenetic signal co-vary with environmental niches in two large forest dynamics plots显示文摘Aims While using phylogenetic and functional approaches to test the mechanisms of community assembly,functional traits often act as the proxy of niches.However,there is little detailed knowledge regarding the correlation between functional traits of tree species and their niches in local communities.We suggest that the co-varying correlation between functional traits and niches should be the premise for using phylogenetic and functional approaches to test mechanisms of community assembly.Using functional traits,phylogenetic and environmental data,this study aims to answer the questions:(i)within local communities,do functional traits of co-occurring species covary with their environmental niches at the species level?and(ii)what is the key ecological process underlying community assembly in Xishuangbanna and Ailaoshan forest dynamic plots(FDPs)?Methods We measured seven functional traits of 229 and 36 common species in Xishuangbanna and Ailaoshan FDPs in tropical and subtropical China,respectively.We also quantified the environmental niches for these species based on conditional probability.We then analyzed the correlations between functional traits and environmental niches using phylogenetic independent contrasts.After examining phylogenetic signals of functional traits using Pagel’sλ,we quantified the phylogenetic and functional dispersion along environmental gradients within local tree communities.Important Findings For target species,functional traits do co-vary with environmental niches at the species level in both of the FDPs,supporting that functional traits can be used as a proxy for local-scale environmental niches.Functional traits show significant phylogenetic signals in both of the FDPs.We found that the phylogenetic and functional dispersion were significantly clustered along topographical gradients in the Ailaoshan FDP but overdispersion in the Xishuangbanna FDP.These patterns of phylogenetic and functional dispersion suggest that environmental filtering plays a key role in structuring local tree assemblages in Ailaoshan FDP,while competition exclusion plays a key role in Xishuangbanna FDP. | Jie Yang Xiuqin Ci Mengmeng Lu Guocheng Zhang Min Cao Jie Li Luxiang Lin | 2014 | Journal of Plant Ecology2014，7，2： | 16 |
| 5 | Three new species of annulitibia-group of the genus Macrophya Dahlbom (Hymenoptera: Tenthredinidae)in Mts. Qinling from China显示文摘Three new species of the annulitibia-group of the genus Macrophya Dahlbom(Hymenoptera, Tenthredinidae) in Mts. Qinling from China are described, namely M acrophya brevicinctata Li, Liu & Wei, sp. nov., M. qinlingium Li, Liu & Wei, sp. nov. and M. rugosifossa Li, Liu & Wei, sp. nov. A key to all known species of the annulitibia-group from China is provided. The specimens examined in this study are mostly deposited in the Insect Collection of Central South University of Forestry and Technology, Changsha, Hunan, China, including all holotypes and some paratypes of the new species. Other paratypes of the new species are deposited in the Department of Zoology, National Museum of Nature and Science, Amakubo, Tsukuba, Ibaraki, Japan. | Mengmeng Liu Zejian Li Jian Shang Meicai Wei | 2016 | Zoological Systematics2016，41，2： | 11 |
| 6 | Two new species of flavomaculata-group of the genus Macrophya Dahlbom(Hymenoptera:Tenthredinidae) from China显示文摘A taxonomic review is provided for the flavomaculata-group of the genus Macrophya,including the descriptions of two new species from China,namely M.coloritibialis Li,Liu & Wei,sp.nov.and M.zhui Li,Liu & Wei,sp.nov.A key to Chinese species of this group is provided.The type specimens of new species are deposited in the Insect Collection of Central South University of Forestry and Technology,Changsha,Hunan,China. | Mengmeng Liu Zejian Li Meicai Wei | 2016 | Zoological Systematics2016，41，3： | 10 |
| 7 | Counteraction of ABA-Mediated Inhibition of Seed Germination and Seedling Establishment by ABA Signaling Terminator in Arabidopsis显示文摘Seed germination and seedling establishment are important for the reproductive success of plants,but seeds and seedlings typically encounter constantly changing environmental conditions.By inhibiting seed germination and post-germinative growth through the PYR1/PYL/RCAR ABA receptors and PP2C co-receptors,the phytohormone abscisic acid(ABA)prevents premature germination and seedling growth under unfavorable conditions.However,little is known about how the ABA-mediated inhibition of seed germination and seedling establishment is thwarted.Here,we report that ABA Signaling Terminator(ABT),a WD40 protein,efficiently switches off ABA signaling and is critical for seed germination and seedling establishment.ABT is induced by ABA in a PYR1/PYL/RCAR-PP2C-dependent manner.Overexpression of ABT promotes seed germination and seedling greening in the presence of ABA,whereas knockout of ABT has the opposite effect.We found that ABT interacts with the PYR1/PYL/RCAR and PP2C proteins,interferes with the interaction between PYR1/PYL4 and ABI1/ABI2,and hampers the inhibition of ABI1/ABI2 by ABA-bound PYR1/PYL4,thereby terminating ABA signaling.Taken together,our results reveal a core mechanism of ABA signaling termination that is critical for seed germination and seedling establishment in Arabidopsis. | Zhijuan Wang Ziyin Ren Chunhong Cheng Tao Wang Hongtao Ji Yang Zhao Zhiping Deng Liya Zhi Jingjing Lu Xinying Wu Shimin Xu Mengmeng Cao Hongtao Zhao Liu Liu Jiankang Zhu Xia Li | 2020 | Molecular Plant2020，13，9： | 10 |
| 8 | Chrysanthemum WRKY15-1 promotes resistance to Puccinia horiana Henn. via the salicylic acid signaling pathway显示文摘Chrysanthemum white rust disease,which is caused by the fungus Puccinia horiana Henn.,severely reduces the ornamental quality and yield chrysanthemum.WRKY transcription factors function in the disease-resistance response in a variety of plants;however,it is unclear whether members of this family improve resistance to white rust disease in chrysanthemum.In this study,using PCR,we isolated a WRKY15 homologous gene,CmWRKY15-1,from the resistant chrysanthemum cultivar C029.Real-time quantitative PCR(RT-qPCR)revealed that CmWRKY15-1 exhibited differential expression patterns between the immune cultivar C029 and the susceptible cultivar Jinba upon P.horiana infection.In addition,salicylic acid(SA)treatment strongly induced CmWRKY15-1 expression.Overexpression of CmWRKY15-1 in the chrysanthemum-susceptible cultivar Jinba increased tolerance to P.horiana infection.Conversely,silencing CmWRKY15-1 via RNA interference(RNAi)in C029 increased sensitivity to P.horiana infection.We also determined that P.horiana infection increased both the endogenous SA content and the expression of salicylic acid biosynthesis genes in CmWRKY15-1-overexpressing plants,whereas CmWRKY15-1 RNAi plants exhibited the opposite effects under the same conditions.Finally,the transcript levels of pathogenesis-related(PR)genes involved in the SA pathway were positively associated with CmWRKY15-1 expression levels.Our results demonstrated that CmWRKY15-1 plays an important role in the resistance of chrysanthemum to P.horiana by influencing SA signaling. | Mengmeng Bi Xueying Li Xin Yan Di Liu Ge Gao Pengfang Zhu Hongyu Mao | 2021 | Horticulture Research2021，8，1： | 9 |
| 9 | Reinforcement effect of fiber and deoiled asphalt on high viscosity rubber/SBS modified asphalt mortar显示文摘In this paper we investigate the reinforcement mechanism of high viscosity rubber/SBS modified asphalt mortar mixed with fiber(mineral, lignin or carbon fiber) and deoiled asphalt(DOA). The softening point, penetration and viscosity tests were conducted to characterize the engineering properties of asphalt-fiber mortar. The microstructure of fiber was observed using scanning electron microscopy(SEM), and the results indicated that fiber can effectively improve the toughness of asphalt matrix through forming a spatial network structure, and then adhesion and stabilization of asphalt binder. The cone penetration test was designed to study the rheological property of fiber modified asphalt. The results indicated that the reinforcement effect increased with fibers and DOA fraction increasing to a certain threshold, and the optimal fiber content was dependent on the fiber type and its length. Fiber content and filler-asphalt ratio had significant effects on the softening point, penetration, viscosity and cone penetration of asphalt mortar. | Wu Mengmeng Li Rui Zhang Yuzhen Wei Jianming Lv Yuchao Ding Xuemei | 2014 | Petroleum Science2014，11，3： | 8 |
| 10 | Research and application of methods for effectiveness evaluation of mine cooling system显示文摘Regarding the complexity and inconsistency of results in existing evaluation methods of mine cooling system, this paper clarifies the advantages, disadvantages and application of various mine cooling systems through principle analysis, and divides all the cooling systems into air-cooling, ice-cooling and water-cooling according to the transportation of cold energy. On this basis, the paper proposes a simple and efficient evaluation method for mine cooling system. The first index of this method is the air temperature at point C which is 15 m away from the return wind corner at working face. A cooling system will be judged ineligible if the air temperature at point C is above 30 °C during operation, because in this case, the combustible gases in coal will sharply overflow, inducing gas incidents. Based on the preliminary judgment of the first index, another two evaluation indexes are proposed based on the cooling ability and dehumidification of an airflow volume of 1000 m3/min at point C to evaluate the investment and operation cost of mine cooling system. This evaluation method has already been successfully applied in the cooling system design of Zhangshuanglou coal mine. | Guo Pingye Wang Yanwei Duan Mengmeng Pang Dongyang Li Nan | 2015 | International Journal of Mining Science and Technology2015，25，4： | 7 |
| 11 | The RNA-binding protein QKI5 regulates primary miR-124-1 processing via a distal RNA motif during erythropoiesis显示文摘 | Fang Wang Wei Song Hongmei Zhao Yanni Ma Yuxia Li Di Zhai Jingnan Pi Yanmin Si Jiayue Xu Lei Dong Rui Su Mengmeng Zhang Yong Zhu Xiaoxia Ren Fei Miao Wenjie Liu Feng Li Junwu Zhang Aibin He Ge Shan Jingyi Hui Linfang Wang Jia Yu | 2017 | Cell Research2017，27，3： | 7 |
| 12 | A new unconventional HLA-A2-restricted epitope from HBV core protein elicits antiviral cytotoxic T lymphocytes显示文摘细胞毒素的 T 房间(CTL ) 在肝炎 B 的控制起一个关键作用病毒(HBV ) 感染和病毒的清理。然而,大多数识别 CTL epitopes 从遗传型 A 和 D 的 HBV 被导出,并且很少在在亚洲更流行的遗传型 B 和 C 的病毒被定义。因为 HBV 核心蛋白质(HBc ) 是最保守、产生免疫性的部件,在这研究,我们使用了盖住 HBc 屏蔽并且识别特定的 CTL epitopes 的一个重叠 9-mer 肽水池。异乎寻常的 HLA-A2-restricted epitope HBc141149 被结晶化分析发现,在结构上描绘了。immunogenicity 和 anti-HBV 活动进一步在 HBV 和 HLA-A2 被决定转基因的老鼠。最后,我们证明在 HBc141149 epitope 的变化与病毒的参数被联系,在 HBV 的疾病前进感染了病人。我们的数据因此提供卓见进这异乎寻常的 epitope 绑定的结构特征给 MHC-I 分子,以及 epitope 特定的 CTL 活动在 HBV 安排 T 房间反应和有免疫力的避免感染的病人。 | Lu Sun Yu Zhang Bao Zhao Mengmeng Deng Jun Liu Xin Li Junwei Hou Mingming Gui Shuijun Zhang Xiaodong Li George F. Gao Songdong Meng | 2014 | Protein & Cell2014，5，4： | 7 |
| 13 | Comparison of the inhibition potentials of icotinib and erlotinib against human UDP-glucuronosyltransferase 1A1显示文摘UDP-glucuronosyltransferase 1A1(UGT1A1) plays a key role in detoxification of many potentially harmful compounds and drugs. UGT1A1 inhibition may bring risks of drug–drug interactions(DDIs), hyperbilirubinemia and drug-induced liver injury. This study aimed to investigate and compare the inhibitory effects of icotinib and erlotinib against UGT1A1, as well as to evaluate their potential DDI risks via UGT1A1 inhibition. The results demonstrated that both icotinib and erlotinib are UGT1A1 inhibitors, but the inhibitory effect of icotinib on UGT1A1 is weaker than that of erlotinib. The IC_(50) values of icotinib and erlotinib against UGT1A1-mediated NCHN-O-glucuronidation in human liver microsomes(HLMs) were 5.15 and 0.68 μmol/L, respectively. Inhibition kinetic analyses demonstrated that both icotinib and erlotinib were non-competitive inhibitors against UGT1A1-mediated glucuronidation of NCHN in HLMs, with the Kivalues of 8.55 and 1.23 μmol/L, respectively. Furthermore, their potential DDI risks via UGT1A1 inhibition were quantitatively predicted by the ratio of the areas under the concentration–time curve(AUC) of NCHN. These findings are helpful for the medicinal chemists todesign and develop next generation tyrosine kinase inhibitors with improved safety, as well as to guide reasonable applications of icotinib and erlotinib in clinic, especially for avoiding their potential DDI risks via UGT1A1 inhibition. | Xuewei Cheng Xia Lv Hengyan Qu Dandan Li Mengmeng Hu Wenzhi Guo Guangbo Ge Ruihua Dong | 2017 | Acta Pharmaceutica Sinica B2017，7，6： | 7 |
| 14 | T cells promote the regeneration of neural precursor cells in the hippocampus of Alzheimer's disease mice显示文摘Alzheimer's disease is closely associated with disorders of neurogenesis in the brain, and growing evidence supports the involvement of immunological mechanisms in the development of the disease. However, at present, the role of T cells in neuronal regeneration in the brain is unknown. We injected amyloid-beta 1–42 peptide into the hippocampus of six BALB/c wild-type mice and six BALB/c-nude mice with T-cell immunodeficiency to establish an animal model of Alzheimer's disease. A further six mice of each genotype were injected with same volume of normal saline. Immunohistochemistry revealed that the number of regenerated neural progenitor cells in the hippocampus of BALB/c wild-type mice was significantly higher than that in BALB/c-nude mice. Quantitative fluorescence PCR assay showed that the expression levels of peripheral T cell-associated cytokines(interleukin-2, interferon-γ) and hippocampal microglia-related cytokines(interleukin-1β, tumor necrosis factor-α) correlated with the number of regenerated neural progenitor cells in the hippocampus. These results indicate that T cells promote hippocampal neurogenesis in Alzheimer's disease and T-cell immunodeficiency restricts neuronal regeneration in the hippocampus. The mechanism underlying the promotion of neuronal regeneration by T cells is mediated by an increased expression of peripheral T cells and central microglial cytokines in Alzheimer's disease mice. Our findings provide an experimental basis for understanding the role of T cells in Alzheimer's disease. | Jing Liu Yuxin Ma Sumin Tian Li Zhang Mengmeng Zhao Yaqiong Zhang Dachuan Xu | 2014 | Neural Regeneration Research2014，9，16： | 7 |
| 15 | A high-fiber diet synergizes with Prevotella copri and exacerbates rheumatoid arthritis显示文摘Both preclinical and established rheumatoid arthritis(RA)patients display alterations in the gut microbiome.Prevotella spp.are preferentially enriched in a subset of RA patients.Here,we isolated a Prevotella strain,P.copri RA,from the feces of RA patients and showed that colonization of P.copri RA exacerbated arthritis in a collagen-induced arthritis(CIA)model.With the presence of P.copri RA colonization,a high-fiber diet exacerbated arthritis via microbial alterations and intestinal inflammation.Colonization of P.copri together with a high-fiber diet enabled the digestion of complex fiber,which led to the overproduction of organic acids,including fumarate,succinate and short-chain fatty acids.Succinate promoted proinflammatory responses in macrophages,and supplementation with succinate exacerbated arthritis in the CIA model.Our findings highlight the importance of dysbiosis when evaluating the effects of dietary interventions on RA pathogenesis and provide new insight into dietary interventions or microbiome modifications to improve RA management. | Lingjuan Jiang Mengmeng Shang Shengnan Yu Yudong Liu Hui Zhang Yangzhong Zhou Min Wang Tingting Wang Hui Li Zhihua Liu Xuan Zhang | 2022 | Cellular & Molecular Immunology2022，19，12： | 6 |
| 16 | Dark matter direct search sensitivity of the PandaX-4T experiment显示文摘The Panda X-4T experiment, a 4-ton scale dark matter direct detection experiment, is being planned at the China Jinping Underground Laboratory. In this paper we present a simulation study of the expected background in this experiment. In a 2.8-ton fiducial mass and the signal region between 1-10 keV electron equivalent energy, the total electron recoil background is found to be 4.9 × 10^(-5) kg^(-1) d^(-1) keV^(-1). The nuclear recoil background in the same region is 2.8 × 10^(-7) kg^(-1) d^(-1) keV^(-1). With an exposure of 5.6 ton-years, the sensitivity of Panda X-4 T could reach a minimum spin-independent dark matter-nucleon cross section of 6 × 10^(-48) cm^2 at a dark matter mass of 40 Ge V/c^2. | HongGuang Zhang Abdusalam Abdukerim Wei Chen Xun Chen YunHua Chen XiangYi Cui BinBin Dong DeQing Fang ChangBo Fu Karl Giboni Franco Giuliani LinHui Gu XuYuan Guo ZhiFan Guo Ke Han ChangDa He ShengMing He Di Huang XingTao Huang Zhou Huang Peng Ji XiangDong Ji YongLin Ju ShaoLi Li Yao Li Heng Lin HuaXuan Liu JiangLai Liu YuGang Ma YaJun Mao KaiXiang Ni JinHua Ning XiangXiang Ren Fang Shi AnDi Tan AnQing Wang Cheng Wang HongWei Wang Meng Wang QiuHong Wang SiGuang Wang XiuLi Wang XuMing Wang Zhou Wang MengMeng Wu ShiYong Wu JingKai Xia MengJiao Xiao PengWei Xie BinBin Yan JiJun Yang Yong Yang ChunXu Yu JuMin Yuan JianFeng Yue Dan Zhang Tao Zhang Li Zhao QiBin Zheng JiFang Zhou Ning Zhou XiaoPeng Zhou | 2019 | Science China(Physics,Mechanics & Astronomy)2019，62，3： | 6 |
| 17 | Alignment of social and ecological structures increased the ability of river management显示文摘Large hydrologic basins involve multiple stakeholders, and coupled dynamic social and ecological processes. Managing such basins has long been a challenge. Balancing the demand for water from nature against that from humans is always difficult, particularly in arid watersheds. Here, we analyze potential institutional causes of ecological degradation and how it can be reversed by introducing new forms of governance. The framework and assumptions are illustrated using China’s second-largest endorheic basin, where empirical evidence shows that the introduction of a new governing authority connecting midstream and downstream actors facilitated the establishment of a new governance regime that is better aligned with the biophysical scales of the watershed. A trans-regional water allocation project initiated by the new higher-level authority successfully rescued downstream oases and restored a dried terminal lake. These outcomes suggest that when social and ecological structures are better aligned our ability to manage the interplay between social and ecological processes increases. However, the lack of direct connection between the actors of the middle and lower reaches resulted in the paradox of an increase in water demand. We therefore suggest that measures to stimulate the emergence of horizontal social ties linking different critical groups of actors across the watershed could further the alignment of the institutional and biophysical structures-without these changes sustainable management of river basins and other common pool resources will remain problematic. | Shuai Wang Bojie Fu Orjan Bodin Jianguo Liu Mengmeng Zhang Xiaoyan Li | 2019 | Science Bulletin2019，64，18： | 6 |
| 18 | Thermally stable and highly efficient red-emitting Eu^(3+)-doped Cs3GdGe309 phosphors for WLEDs:non-concentration quenching and negative thermal expansion显示文摘Red phosphor materials play a key role in improving the lighting and backlit display quality of phosphor-converted white light-emitting diodes(pc-WLEDs).However,the development of a red phosphor with simultaneous high efficiency,excellent thermal stability and high colour purity is still a challenge.In this work,unique non-concentration quenching in solid-solution Cs_(3)Gd_(1-x)Ge_(3)O_(9):xEu^(3+)(CGGO:xEu^(3+))(x=0.1-1.0)phosphors is successfully developed to achieve a highly efficient red-emitting Cs_(3)EuGe_(3)0_(9)(CEGO)phosphor.Under the optimal 464 nm blue light excitation,CEGO shows a strong red emission at 611 nm with a high colour purity of 95.07%and a high internal quantum efficiency of 94%.Impressively,this red-emitting CEGO phosphor exhibits a better thermal stability at higher temperatures(175-250℃,>90%)than typical red K2SiF6:Mn^(4+)and Y203:Eu^(3+)phosphors,and has a remarkable volumetric negative thermal expansion(coefficient of thermal expansion,a=—5.06×10^(-5)/℃,25-250℃).By employing this red CEGO phosphor,a fabricated pc-WLED emits warm white light with colour coordinates(0.364,0.383),a high colour rendering index(CRI=89.7),and a low colour coordinate temperature(CCT=4508 K).These results indicate that this highly efficient red-emitting phosphor has great potential as a red component for pc-WLEDs,opening a new perspective for developing new phosphor materials. | Peipei Dang Guogang Li Xiaohan Yun Qianqian Zhang Dongjie Liu Hongzhou Lian Mengmeng Shang Jun Lin | 2021 | Light(Science & Applications)2021，10，2： | 6 |
| 19 | TiO_2 nanocrystals/graphene hybrids with enhanced Li-ion storage performance显示文摘TiO_2 nanocrystals/graphene hybrids(TiO_2-G) with ultrafine TiO_2 nanocrystals(~7 nm in size) conformally coated on ultrathin graphene nanosheets(~ 2 layers thick) were successfully prepared via a facile one-pot solvothermal route under mediated conditions.With the feature of large surface area,abundant mesopores and high thermal stability,the TiOi-G nanohybrids exhibited large reversible Li-ion storage capacity with excellent cycling stability(629 mAh·g^(-1) after 400 cycles at a current of 60 mA·g^(-1)) and good rate capability(184 mAh·g^(-1) at a current density of 3 A·g^(-1)) due to the synergetic effects and strong interactions between the components,showing great promise in applications for advanced energy storage devices. | Qingqing Zhang Rong Li Mengmeng Zhang Bianli Zhang Xinglong Gou | 2014 | Journal of Energy Chemistry2014，23，3： | 5 |
| 20 | Isolation and characterization of diesel degrading bacteria, Sphingomonas sp. and Acinetobacter junii from petroleum contaminated soil显示文摘石油的二个土生土长的细菌污染了土壤被描绘在这个工作作为唯一的碳和精力来源利用柴油。16S rRNA 基因顺序分析作为 Sphingomonas sp 识别了这些细菌。并且 Acinetobacter junii。降级的能力柴油被这些第一次表明了孤立。红外分析的结果显示出那 Sphingomonas sp。VA1 和 A。junii VA2 分别地降级了直到 82.6% 应用柴油机和 75.8% 超过 15 天。另外, Sphingomonas sp。VA1 由 A 与 81% 相比为柴油机拥有了 94% 的更高细胞的 hydrophobicities。junii VA2。isolates Sphingomonas sp。VA1 和 A。junii VA2 展出了 24% 和 18% ,分别地乳化活动。这研究降级的细菌的种类,它能是有效地为石油的 bioremediation 使用了的二台新柴油机污染了地点的报告[出版摘要] | Qiuzhuo ZHANG Duanchao WANG Mengmeng LI Wei-Ning XIANG Varenyam ACHAL | 2014 | Frontiers of Earth Science2014，8，1： | 5 |
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