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36篇 您的检索式:作者名="Jibiao"
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1Pseudogap phenomena in ultracold atomic Fermi gases显示文摘在原子费密气体是的二部件的 ultracold 配对和超流体现象配对的库珀和在一个电子系统的超导性的类似物,特别地高 T < 潜水艇 class= “ a-plus-plus ” > c 超导体。由于在最近的年里试验性地被使可存取的各种各样的悦耳的参数,原子费密气体能作为一个原型或超导体的量模拟器被探索。这被希望,利用如此的类比,原子费密气体的学习可以打开灯到高 T 的谜 < 潜水艇 class= “ a-plus-plus ” > c 超导性。一个障碍到高 T 的最终的理解<潜水艇class=“ a-plus-plus ”>从白天一它的发现, c 超导性是异常还普遍的 pseudogap 现象,一致还有待于在物理社区以内为被到达,在超过 27 年集中的研究努力以后。在这篇文章,我们将以理论理解和试验性的观察在原子费密气体在 pseudogap 现象的学习考察进步。我们证明为在强烈交往的费密气体的 pseudogap 的存在有充分、不含糊的证据。在这上下文,我们将介绍它是的 pseudogap 物理和表演的一个配对的变化理论确实为高 T 的一个强壮的候选人理论 < 潜水艇 class= “ a-plus-plus ” > c 超导性。Qijin Chen Jibiao Wang 2014Frontiers of physics2014,9,5:4
2Ln3+(Ln=Eu,Dy)-doped Sr2CeO4 fine phosphor particles:Wet chemical preparation,energy transfer and tunable luminescence显示文摘The Sr2 CeO4:Ln3+(Ln=Eu,Dy)fine phosphor particles were prepared by a facile wet chemical approach,in which the consecutive hydrothermal-combustion reaction was performed.The doping of Ln3+into Sr2 CeO4 has little influence on the structure of host,and the as-prepared samples display wellcrystallized spherical or elliptical shape with an average particle size at about 100-200 nm.For Eu3+ions-doped Sr2 CeO4,with the increase of Eu3+-doping concentration,the blue light emission band with the maximum at 468 nm originating from a Ce4+→O2-charge transfer of the host decreases obviously and the characteristic red light emission of Eu3+(5 D0→7 F2 transition at 618 nm)is enhanced gradually.Simultaneously,the fluorescent lifetime of the broadband emission of Sr2 CeO4 decreases with the doping of Eu3+,indicating an efficient energy transfer from the host to the doping Eu3+ions.The ene rgy transfer efficiency from the host to Eu3+was investigated in detail,and the emitting color of Sr2 CeO4:Eu3+can be easily tuned from blue to red by varying the doping concentration of Eu3+ions.Moreover,the luminescence of Dy3+-doped Sr2 CeO4 was also studied.Similar energy transfer pheno menon can be observed,and the incorporation of Dy3+into Sr2 CeO4 host leads to the characteristic emission of 4 F9/2→6 H15/2(488 nm,blue light)and 4 F9/2→6 H13/2(574 nm,yellow light)of Dy3+.The Sr2 CeO4:Ln3+fine particles with tunable luminescence are quite beneficial for its potential applications in the optoelectronic fields.Na Gao Yanfei Yang Shikao Shi Jiye Wang Shuping Wang Jibiao Li Lianshe Fu 2020Journal of Rare Earths2020,38,12:4
3Geochronology, Geochemistry, Whole Rock Sr-Nd and Zircon Hf-O Isotopes of the Early Neoproterozoic Volcanic Rocks in Jiangshan, Eastern Part of the Jiangnan Orogen: Constraints on Petrogenesis and Tectonic Implications显示文摘This paper presents the results of combined studies of geochronology, geochemistry, whole rock Sr-Nd and zircon Hf-O isotopes carried out upon the rhyodacite and ignimbrite of Shangshu village, Shangyu town and Shanghupeng village of Jiangshan City in Zhejiang Province, along the northwestern side of the Jiangshan–Shaoxing suture. SHRIMP zircon U-Pb dating of samples in the three areas yielded weighted mean 206 Pb/238 U ages of 842.8 ± 6.9 Ma and 850.0 ± 7.3 Ma, 839 ± 9 Ma and 832.2 ± 8.1 Ma, 828.3 ± 8.5 Ma and 836.9 ± 9.9 Ma, respectively. These ages are older than the volcanic rocks of the Shangshu Formation dated at around 780 Ma distributed in Fuyang City, Hangzhou City, Kaihua County, etc. The volcanic rocks generally have high SiO2(54.08–76.80 wt%) and Al2 O3(12.40–21.31 wt%), low Fe2 O3(0.68–8.92 wt%), MgO(0.29–2.49 wt%), CaO(0.12–2.86 wt%), TiO2(0.10–1.59 wt%) and P2 O5(0.01–0.39 wt%), with variable total alkalis(K2 O + Na2 O =5.42–8.29 wt%). There exists a clear negative correlation between SiO2 and P2 O5. The volcanic rocks have A/CNK ratios of 1.03–2.77 and thus are peraluminous. They are characterized by enrichment in LREE, Rb, Ba, Zr, Hf, K, Th, La, U and depletion in Nb, Sr, P, Ti, with distinct LREE and HREE fractionation of(La/Yb)N values of 5.68–11.67, and with a moderate negative Eu anomaly(&Eu=0.58–0.89). Whole-rock geochemical data shows that the Jiangshan volcanic rocks are possibly I-type granitic rocks, even though they have some characteristics of A&S-type granites due to the magma fractional crystallization and water-rock interaction. Zircon δ18 O values are 3.97‰–5.49‰(average 4.50‰), 2.90‰–5.21‰(average 4.32‰) for ignimbrite from Shangshu village section, and Shanghupeng village section, respectively. They are slightly lower than the average δ18 O values of igneous zircons in equilibrium with mantle magmas(5.3 ± 0.6‰(2σ)), the lower δ18 O value also demonstrating the presence of high temperature water-rock interactions. The ignimbrite rocks have positive εNd(t)(4.02, 3.37, 3.91, 4.74, 2.85, 4.39, totals from the three areas) and εNd(t)(in-situ zircon)(4.3–14.6, a weighted mean of 8.4;6.6–12.7, a weighted mean of 9.0;8.1–12.0, a weighted mean of 9.5, respectively, from the three areas). In conjunction with the trace element studies, they indicate that the source region of the Jiangshan volcanic rocks was mainly composed of juvenile lower crustal material, mixed with some mantle-sourced magma. Detailed elemental and isotopic data suggest that the Jiangshan volcanic rocks were formed in a continental arc setting. There is a series of ca. 860–830 Ma volcanic rocks formed in a back-arc extensional setting in the southern margin of the eastern Jiangnan Orogen, along the northwest side of the Jiangshan–Shaoxing suture. The first stage rift-related anorogenic magmatism may have occurred as early as ca. 860 Ma in the eastern Jiangnan Orogen.ZHANG Heng LIU Yanxue DING Xiaozhong GAO Linzhi YANG Chun ZHANG Jibiao GONG Chengqiang LIU Haogang 2020Acta Geologica Sinica(English Edition)2020,94,4:3
4Bile acid receptors link nutrient sensing to metabolic regulation显示文摘Non-alcoholic fatty liver disease(NAFLD)is a common liver disease in Western populations.Nonalcoholic steatohepatitis(NASH)is a more debilitating form of NAFLD characterized by hepatocellular injury and inflammation,which significantly increase the risk of end-stage liver and cardiovascular diseases.Unfortunately,there are no available drug therapies for NASH.Bile acids are physiological detergent molecules that are synthesized from cholesterol exclusively in the hepatocytes.Bile acids circulate between the liver and intestine,where they are required for cholesterol solubilization in the bile and dietary fat emulsification in the gut.Bile acids also act as signaling molecules that regulate metabolic homeostasis and inflammatory processes.Many of these effects are mediated by the bile acid-activated nuclear receptor farnesoid X receptor(FXR)and the G protein-coupled receptor TGR5.Nutrient signaling regulates hepatic bile acid synthesis and circulating plasma bile acid concentrations,which in turn control metabolic homeostasis.The FXR agonist obeticholic acid has had beneficial effects on NASH in recent clinical trials.Preclinical studies have suggested that the TGR5 agonist and the FXR/TGR5 dual agonist are also potential therapies for metabolic liver diseases.Extensive studies in the past few decades have significantly improved our understanding of the metabolic regulatory function of bile acids,which has provided the molecular basis for developing promising bile acid-based therapeutic agents for NASH treatment.Jibiao Li Tiangang Li 2017Liver Research2017,1,1:2
5Geochronology and Geochemistry of the 890 Ma I-Type Granites in the Southwestern Yangtze Block:Petrogenesis and Crustal Evolution显示文摘The tectonic evolution of the southwestern Yangtze Block during the Early Neoproterozoic period is still controversial because of the limited quantities of 1000–860 Ma magmatic rocks.In this study,our new LA-ICP-MS zircon U-Pb dating results demonstrate that the Yanbian granodiorites in the southwest Yangtze Block were emplaced at 894.6±7.4 Ma,representing the product of an 894 Ma magmatism.The Yanbian granodiorites are metaluminous to weak peraluminous with A/CNK values of 0.8–1.1,resembling Itype granitoids.They are characterized by right-inclined REE patterns with moderate to insignificant negative Eu anomalies(δEu=0.6–0.9).Their primitive mantle-normalized trace element patterns are characterized by depletion of Nb,Ta and Ti and weakly enrichment of Th.Considering the positive whole-rockεNd(t)(+5.8 to+6.8),we propose that these granodiorites originated from the partial melting of juvenile mafic lower crust.The Yanbian I-type granitoids have low Y and Nb contents similar to volcanic arc igneous rocks in the Y-Nb plot for tectonic discrimination.In conclusion,Early Neoproterozoic Yanbian granodiorites have generated in a compression setting in an active continental margin.Together with previous studies from the southwestern Yangtze Block,we suggest that the 894 Ma subduction-related Yanbian granodiorites represent the early stage of subduction at the southwestern margin of the Yangtze Block.Jibiao Zhang Xiaozhong Ding Yanxue Liu Heng Zhang Chenglong Shi Yu Zou 2020Journal of Earth Science2020,31,6:2
6Cenozoic Magmatism and Tectonic Framework of Western Yunnan,China:Constrained from Geochemistry,Sr-Nd-Pb Isotopes and Fission Track Dating显示文摘Western Yunnan is composed of several extruded continental microblocks that were generated by the oblique collision between the Indian and Asian continents during the Cenozoic.In this study,the magmatic and tectonic frameworks of western Yunnan in the Cenozoic were analyzed based on geochemistry,Sr-Nd-Pb isotopes,and apatite/zircon fission track dating.Magmatism during the Cenozoic in western Yunnan was then divided into three distinctive episodes:alkali granite rocks produced from 55 to 46 Ma were derived from the anatexis of crustal materials;bimodal igneous rocks formed between 37 and 24 Ma were possibly derived from an EMII mantle with a contribution from continental materials;and intermediate-basic volcanic rocks produced in the Tengchong microblocks since^16 Ma are considered to be generated by the partial melting of the upper mantle that was induced by the pulling apart of the dextral Gaoligong strike-slip fault system.Moreover,fission track analysis of apatite and zircon indicates that the regional crustal uplift in western Yunnan possibly began at ~34 Ma,with accelerated annealing occurring at ~24 Ma,~13 Ma,and ~4 Ma.During the past24 Ma,the average denudation rate was ~0.32 mm/yr for the faulted block controlled by the Chongshan-Lancang River fault.However,crustal uplift has been relatively gentle in places lacking influence from strike-slip shear zones,with an average denudation rate of^0.2 mm/yr.Combined with strike-slip shear and block rotation in the Cenozoic,the tectonic evolution of western Yunnan since ~45Ma can thus be divided into four stages occurring at 45-37 Ma,37-24 Ma,24-13 Ma,and 13-0 Ma.YANG Xin XU Xuhui ZHANG Zhongpei LIU Yifeng ZHANG Jibiao LIU Xingwang XIONG Ping ZHENG Jianjing 2016Acta Geologica Sinica(English Edition)2016,90,5:2
7Ultra high temperature superfluidity in ultracold atomic Fermi gases with mixed dimensionality显示文摘It has been an important goal to achieve higher or even room temperature superconductivity,since the discovery of high Tc superconductors in 1986,with a typical maximum transition temperature Tc of around 95 K at ambien pressure[1]or up to 164 K for the Hg-based cuprates under high pressure[2].The typical Tc/TF is only around 0.05 or less,where TF denotes the Fermi temperature.There have been a few other families of superconductors,including the iron-based[3],heavy fermion[4]and organic superconductors[5].Their maximum attainable Tc/TF has not been able to exceed that of the cuprates.Other notable superconductors include the recently discovered H2S with a record high Tc=203 K under an enormous high pressure of 90 GPa[6],and the monolayer FeSe/SrTiO3 superconductors with a gap opening temperature up to 100 K[7].Leifeng Zhang Jibiao Wang Yi Yu Qijin Chen 2020Science China(Physics,Mechanics & Astronomy)2020,63,2:1
8Effects of spark discharge on the anodic coatings on magnesium alloy 显示文摘WANG Yanhua WANG Jia ZHANG Jibiao 2006Mater Lett2006,60,4:1
9Near-Infrared-Excitable Organic Ultralong Phosphorescence through Multiphoton Absorption显示文摘Organic ultralong room-temperature phosphorescence(OURTP)with a long-lived triplet excited state up to several seconds has triggered widespread research interests,but most OURTP materials are excited by only ultraviolet(UV)or blue light owing to their unique stabilized triplet-and solid-state emission feature.Here,we demonstrate that near-infrared-(NIR-)excitable OURTP molecules can be rationally designed by implanting intra/intermolecular charge transfer(CT)characteristics into Haggregation to stimulate the efficient nonlinear multiphoton absorption(MPA).The resultant upconverted MPA-OURTP show ultralong lifetimes over 0.42 s and a phosphorescence quantum yield of~37%under both UV and NIR light irradiation.Empowered by the extraordinary MPA-OURTP,novel applications including two-photon bioimaging,visual laser power detection and excitation,and lifetime multiplexing encryption devices were successfully realized.These discoveries illustrate not only a delicate design map for the construction of NIR-excitable OURTP materials but also insightful guidance for exploring OURTP-based nonlinear optoelectronic properties and applications.Ye Tao Lele Tang Qi Wei Jibiao Jin Wenbo Hu Runfeng Chen Qingqing Yang Huanhuan Li Ping Li Guichuan Xing Quli Fan Chao Zheng Wei Huang 2020Research2020,,1:1
10Adsorption of p -nitroaniline from aqueous solutions onto activated carbon fiber prepared from cotton stalk显示文摘Kunquan Li Zheng Zheng Jingwei Feng Jibiao Zhang Xingzhang Luo Guohua Zhao Xingfa Huang 2008Journal of Hazardous Materials2008,,2:1
11Electrochemical Investigations of Micro-droplets Formed on Metals During the Deliquescence of Salt Particles in Atmosphere 显示文摘ZHANG Jibiao WANG Jia WANG Yanhua 2005Electrochemistry Communications2005,7,4:1
12Radiation - in- duced reduction of diuron by gamma - ray irradiation 显示文摘Zhang Jibiao Zheng Zheng Zhao Tao 2008Journal of Hazardous Materials2008,151,23:1
13Radiation-induced reduction of diuron by gamma-ray irradiation 显示文摘Jibiao Zhang Zheng Zheng Tan Zhao Yongfu Zhao Lianhong Wang Yun Zhong Yue Xu 2008Journal of Hazardous Materials2008,151,:1
14Adsorption of p-nitrophenol from aqueous solutions onto activated carbon fiber 显示文摘Tang Dengyong Zheng Zheng Lin Kui Luan Jingfei Zhang Jibiao 2007Journal of Hazardous Materials2007,143,12:1
15Electrochemical investigations of micro-droplets formed on metals during the deliquescence of salt particles in atmosphere显示文摘Jibiao Zhang Jia Wang Yanhua Wang 2005Electrochemistry Communications2005,,4:1
16Structural characterization and photocatalytic properties of novel Bi2FeVO7显示文摘Jingfei Luan Hongling Cai Xiping Hao Jibiao Zhang Guoyou Luan Xiaoshan Wu Zhigang Zou 2007Research on Chemical Intermediates2007,,6:1
17Solution-processed multi-resonance organic light-emitting diodes with high efficiency and narrowband emission显示文摘With excellent color purity(full-width half maximum(FWHM)<40 nm)and high quantum yield,multiresonance(MR)molecules can harvest both singlet and triplet excitons for highly efficient narrowband organic light-emitting diodes(OLEDs)owing to their thermally activated delayed fluorescence(TADF)nature.However,the highly rigid molecular skeleton with the oppositely positioned bo ron and nitrogen in generating MR effects results in the intrinsic difficulties in the solution-processing of MR-OLEDs.Here,we demonstrate a facile strategy to increase the solubility,enhance the efficiencies and modulate emission color of MR-TADF molecules by extending aromatic rings and introducing tert-butyls into the MR backbone.Two MR-TADF emitters with smaller singlet-triplet splitting energies(ΔE~(ST))and larger oscillator strengths were prepared conveniently,and the solution-processed MR-OLEDs were fabricated for the first time,exhibiting efficient bluish-green electroluminescence with narrow FWHM of 32 nm and external quantum efficiency of 16.3%,which are even comparable to the state-of-the-art performances of the vacuum-evaporated devices.These results prove the feasibility of designing efficient solutionprocessible MR molecules,offering important clues in developing high-performance solution-processed MR-OLEDs with high efficiency and color purity.Shen Xu Qingqing Yang Ying Zhang Hui Li Qin Xue Guohua Xie Minzhao Gu Jibiao Jin Ling Huang Runfeng Chen 2021Chinese Chemical Letters2021,32,4:1
18A small sample-size automated adiabatic calorimeter from 70 to 580 K显示文摘Zhicheng Tan Jibiao Zhang Shuanghe Meng Li Li 1999Science in China Series B: Chemistry1999,,4:1
19Distribution characteristics and source tracing of petroleum hydrocarbons in the northeastern South China Sea显示文摘In recent years,oil spills caused by human activities have occurred frequently,and the resultant oil pollution has received extensive attention worldwide.In this paper,a total of 50 water samples were collected from the northeastern part of the South China Sea,and total petroleum hydrocarbons(TPHs)and n-alkane content in the samples were analyzed by gas chromatography-flame ionization detector(GC-FID)technology.The petroleum hydrocarbon characteristic indices,such as carbon predominance index(CPI)and terrigenous/aquatic ratio(TAR),were calculated to trace the source of petroleum hydrocarbons.The measured value of TPHs ranged from 121.31-603.02μg/L.For surface waters,the TPHs in the no rthern coastal waters and the central waters were higher than that in the far shore.For ve rtical waters,the TPHs sharply decreased at first,and then increased slowly and finally reached a steady state.The n-alkanes in the water samples were concentrated in C10-C38,and they were mainly from terrestrial higher plant.The waters in the near shore,mid-layer and deep sea showed a strong reducing terrestrial characteristic,while the surface waters in the open sea showed an obvious oxidizing endogenous characteristic.Shengying Gong Wenhu Liu Yazhuo Li Jibiao Zhang Changlin Chen Jie Fu 2020Chinese Chemical Letters2020,31,10:1
20Radiationinduced reduction of diuron by gamma-ray Irradiation显示文摘Zhang Jibiao Zheng Zheng ZhaoTan 2008Hazardous Materials2008,151,23:1
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