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| 1 | Dithieno[3′,2′:3,4;2″,3″:5,6]benzo[1,2-c][1,2,5]oxadiazole-based polymer donors with deep HOMO levels显示文摘Star nonfullerene acceptors like ITIC[1],IDIC[2],O-IDTBR[3],IT-4 F[4],COi8 DFIC[4],Y6[6]etc.continuously emerge and keep pushing the power conversion efficiency(PCE)of organic solar cells forward.These small molecules generally show narrow bandgaps,excellent visible to NIR light-harvesting capability,good electron mobility. | Xiongfeng Li Jingui Xu Zuo Xiao Xingzhu Wang Bin Zhang Liming Ding | 2021 | Journal of Semiconductors2021，42，6： | 3 |
| 2 | Resveratrol Induces Apoptosis in Human Osteosarcoma MG63 Cells显示文摘OBJECTIVE To investigate apoptosis in human osteosarcoma MG63 cells induced by resveratrol and the molecular mechanism involved.METHODS MG63 cells were treated with different concentrations of resveratrol and transmission electron microscopy was used to observe morphological changes occurring in apoptosis.The MTT method was used to determine the inhibitory rate and flow cytometry was used to assess apoptosis and to analyze the expression of the p21cip1/WAF1 and survivin proteins;the expression of p21cip1/WAF1 and survivin mRNAs was analyzed by the reverse transcriptase polymerase chain reaction(RT-PCR).RESULTS A er resveratrol treatment,the growth of the MG63 cells was significantly inhibited in a time-and dose-dependent fashion.By transmission electron microscopy,the cells displayed morphological changes characteristic of apoptosis,including formation of cytoplasmic vacuoles,chromatin condensation and margination.Flow cytometry showed that the growth of the cells was inhibited a er resveratrol(10 mg/L and 20 mg/L) treatment.The inhibitory rates were(11.9 ± 0.63)% and(19.7 ± 0.88)% respectively.The quantity of treated cells in G0/G1 transition was increased,but the number in the S phase and G2/M transition was decreased.A subdiploid peak was observed.The expression of p21cip1/WAF1 was up-regulated while survivin was down-regulated.CONCLUSION Resveratrol can inhibit growth and induce apoptosis of MG63 cells.Its molecular mechanism might be related to modulation of survivin and p21cip1/WAF1 expression. | Yan Liu Xin Wang Yuxin Xie Jingui Zhang Qingshan Wang Xianhui Xu | 2008 | Chinese Journal of Clinical Oncology2008，5，5： | 1 |
| 3 | Comparison of genetic impact on growth and wood traits between seedlings and clones from the same plus trees of Pinus koraiensis显示文摘To evaluate the relationships among clones and open pollinated families from the same plus trees and to select elite breeding materials,growth,and wood characteristics of 33-year-old Pinus korainsis clones and families were measured and analyzed.The results show that growth and wood characters varied significantly.The variation due to clonal effects was higher than that of family effects.The ratio of genetic to phenotypic coefficient of variation of clones in growth and wood traits was above 90%,and the repeatability of these characteristics was more than 0.8,whereas the ratio of genetic to phenotypic coefficient of variation of families was above 90%.The broad-sense heritability of all characteristics exceeded 0.4,and the narrow-sense family heritability of growth traits was less than 0.3.Growth characteristics were positively correlated with each other,but most wood properties were weakly correlated in both clones and families.Fiber length and width were positively correlated between clones and families.Using the membership function method,eleven clones and four families were selected as superior material for improved diameter growth and wood production,and two families from clonal and open-pollinated trees showed consistently better performance.Generally,selection of the best clones is an effective alternative to deployment of families as the repeatability estimates from clonal trees were higher than narrow-sense heritability estimates from open pollinated families.The results provide valuable insight for improving P.koraiensis breeding programs and subsequent genetic improvement. | Xiaoting Liu Zhimin Lu Jingui Wu Yuchun Yang Shuchun Li Lin Wu Qingshan Xu Qi Yu Li Zhao Jian Sun Wei Zheng Mulualem Tigabu Xiyang Zhao | 2023 | Journal of Forestry Research2023，34，2： | 0 |
| 4 | Thermal Equation of State of Natural F-Rich Topaz up to 29 GPa and 750 K显示文摘Subducting oceanic sediments and crusts,originating from the Earth's surface and descending into its deep interior,are important carriers of volatiles.The volatiles have significant effects on materials cycling and the dynamic evolution of the subduction zones.A simplified Al_(2)O_(3)-SiO_(2)-H_(2)O(ASH)ternary system models the relationship of minerals in the hydrated and alumina-silica rich sedimentary layer.Topaz Al_(2)SiO_(4)(F,OH)_(2)is an important mineral in the ASH system and comprises two volatiles:H_(2)O and fluorine(F).In this study,the thermoelasticity of a natural F-rich topaz was investigated using synchrotron-based single-crystal X-ray diffraction combined with diamond anvil cells up to 29.1 GPa and 750 K.The pressure-volume-temperature data were fitted to a third-order Birch-Murnaghan Equation of state with V_(0)=343.15(7)Å3,K_(0)=166(1)GPa,K_(0)'=3.0(1),(∂K_(0)/∂T)P=-0.015(9)GPa/K andα_(0)=3.9(5)×10^(-5)K^(-1).The isothermal bulk modulus increases with the F content in topaz,and the various F contents present significant effects on its anisotropic compressibility.Our results further reveal that the isothermal bulk modulus K_(0)of the minerals in ASH system increases with density.F and H contents in hydrous minerals might greatly affect their properties(e.g.,compressibility and stability),providing more comprehensive constraints on the subduction zones. | Yungui Liu Xiang Li Haipeng Song Jingui Xu Dongzhou Zhang Junfeng Zhang Xiang Wu | 2023 | Journal of Earth Science2023，34，3： | 0 |
| 5 | Influence of Hydrogen on the Thermoelastic Properties of the Major Rock-Forming Minerals in the Upper Mantle显示文摘Objective Anhydrous mineral phases in the Earth's upper mantle may serve as a large internal reservoir of water that has profound implications for the Earth's evolution as a water planet.Water plays important roles in the phase transformation kinetics in the Earth's interior,which affects the mantle dynamics.However,the influence of water content in the major rock-forming minerals on | FAN Dawei KUANG Yunqian XU Jingui ZHANG Bo XIE Hongsen | 2016 | Acta Geologica Sinica(English Edition)2016，90，5： | 0 |
| 6 | A wide-bandgap copolymer donor with a 5-methyl-4Hdithieno[3,2-e:2′,3′-g]isoindole-4,6(5H)-dione unit显示文摘Wide-bandgap copolymer donors with fused-ring accept-or units(FAUs)present excellent performance in non-fullerene organic solar cells due to their complementary light-absorption with nonfullerene acceptors,deep the highest occupied molecular orbital(HOMO)levels and high hole mobilities[1−4]. | Anxin Sun Jingui Xu Guanhua Zong Zuo Xiao Yong Hua Bin Zhang Liming Ding | 2021 | Journal of Semiconductors2021，42，10： | 0 |
| 7 | High-Pressure Behavior of Ferromagnesite(Mg_(0.81)Fe_(0.19))CO_(3)by Synchrotron X-Ray Diffraction and Raman Spectroscopy up to 53 GPa显示文摘Ferromagnesite(Mg,Fe)CO_(3)with 20 mol%iron is a potential host mineral for carbon transport and storage in the Earth mantle.The high-pressure behavior of synthetic ferromagnesite(Mg_(0.81)Fe_(0.19))CO_(3)up to 53 GPa was investigated by synchrotron X-ray diffraction(XRD)and Raman spectroscopy.The iron bearing carbonate underwent spin transition at around 44–46 GPa accompanied by a volume collapse of 1.8%,which also demonstrated a variation in the dνi/dP slope of the Raman modes.The pressure-volume data was fitted by a third-order Birch-Murnaghan equation of state(BM-EoS)for the high spin phase.The best-fit K_(0)=108(1)GPa and K_(0)'=4.2(1).Combining the dνi/dP and the K_(0),the mode Grüneisen parameters of each vibrational mode(T,L,ν4 andν1)were calculated.The effects of iron concentration on the Mg_(1−x)Fe_(x)CO_(3)system related to high-pressure compressibility and vibrational properties are discussed.These results expand the knowledge of the physical properties of carbonates and provide insights to the potential deep carbon host. | Lin Liang Guibin Zhang Shengxuan Huang Jingjing Niu Dongzhou Zhang Jingui Xu Wen Liang Shan Qin | 2024 | Journal of Earth Science2024，35，2： | 0 |
| 8 | Dehydration melting of amphibolite at 1.5 GPa and 800–950C:Implications for the Mesozoic potassium-rich adakite in the eastern North China Craton显示文摘Mesozoic intermediate-felsic magmatic rocks in the eastern North China Craton commonly show geochemical similarity to adakites.However,the lack of direct constraints from partial melting experiments at high pressures and temperatures fuels a debate over the origin of these rocks.In this work,we performed partial melting experiments at 1.5 GPa and 800–950℃on amphibolite samples collected from the vicinity of the Mesozoic potassium-rich adakitic rocks in the Zhangjiakou area,northern margin of the North China Craton.The experimental melts range from granitic to granodioritic compositions,with SiO_(2)=56.4–72.6 wt.%,Al_(2)O_(3)=16.1–19.3 wt.%,FeO^(*)=2.4–9.6 wt.%,MgO=0.3–2.0 wt.%,CaO=0.6–3.8 wt.%,Na_(2)O=4.7–5.3 wt.%,and K_(2)O=2.6–3.9 wt.%,which are in the ranges of the surrounding Mesozoic potassium-rich adakitic rocks,except for the higher Al_(2)O_(3)contents and the data point at 1.5 GPa and 800℃.Trace element compositions of the melts measured by LA-ICP-MS are rich in Sr(849–1067 ppm)and light rare earth elements(LREEs)and poor in Y(<10.4 ppm)and Yb(<0.88 ppm),and have high Sr/Y(102–221)and(La/Yb)n(27–41)ratios and strongly fractionated rare earth element(REE)patterns,whereas no obvious negative Eu anomalies are observed.The geochemical characteristics show overall similarity to the Mesozoic potassium-rich adakitic rocks in the area,especially adakites with low Mg#,again except for the data point at 1.5 GPa and 800℃.The results suggest that partial melting of amphibolite can produce potassium-rich adakitic rocks with low Mg#in the eastern North China Craton under the experimental conditions of 1.5 GPa and 850–950℃.The experimental restites consist of hornblende(Hbl)+plagioclase(Pl)+garnet(Grt)±clinopyroxene(Cpx),a mineral assemblage significantly different from that of the nearby Hannuoba mafic granulite xenoliths which consist of Cpx+orthopyroxene(Opx)+Pl±Grt.Chemically,the experimental restites contain higher Al_(2)O_(3)but lower MgO and CaO than the Hannuoba mafic granulite xenoliths.We therefore argue that the Hannuoba mafic granulite xenoliths cannot represent the direct products of partial melting of the experimental amphibolite. | Zhilin Ye Fang Wan Neng Jiang Jingui Xu Yuanyun Wen Dawei Fan Wenge Zhou | 2021 | Geoscience Frontiers2021，12，2： | 0 |
| 9 | Thermoelasticity and stability of natural epidote at high pressure and high temperature:Implications for water transport during cold slab subduction显示文摘Epidote is a typical hydrous mineral in subduction zones.Here,we report a synchrotron-based single-crystal X-ray diffraction(XRD)study of natural epidote[Ca1.97Al2.15Fe0.84(SiO4)(Si2O7)O(OH)]under simultaneously high pressure-temperature(high P-T)conditions to~17.7 GPa and 700 K.No phase transition occurs over this P-T range.Using the third-order Birch-Murnaghan equation of state(EoS),we fitted the pressure-volume-temperature(P-V-T)data and obtained the zero-pressure bulk modulus K_(0)=138(2)GPa,its pressure derivative K'_(0)=3.0(3),the temperature derivative of the bulk modulus((∂K/∂T)P=-0.004(1)GPa/K),and the thermal expansion coefficient at 300 K(α_(0)=3.8(5)×10^(-5)K^(-1)),as the zero-pressure unit-cell volume V_(0)was fixed at 465.2(2)Å^(3)(obtained by a single-crystal XRD experiment at ambient conditions).This study reveals that the bulk moduli of epidote show nonlinear compositional dependence.By discussing the stabilization of epidote and comparing its density with those of other hydrous minerals,we find that epidote,as a significant water transporter in subduction zones,may maintain a metastable state to~14 GPa along the coldest subducting slab geotherm and promote slab subduction into the upper mantle while favoring slab stagnation above the 410 km discontinuity.Furthermore,the water released from epidote near 410 km may potentially affect the properties of the 410 km seismic discontinuity. | Bo Li Jingui Xu Dongzhou Zhang Zhilin Ye Shijie Huang Dawei Fan Wenge Zhou Hongsen Xie | 2021 | Geoscience Frontiers2021，12，2： | 0 |
| 10 | Partnership for eXtreme Xtallography (PX^(2))—A state-of-the-art experimental facility for extreme-conditions crystallography: A case study of pressure-induced phase transition in natural ilvaite显示文摘Single-crystal x-ray diffraction(SCXRD)is an important tool to study the crystal structure and phase transitions of crystalline materials at elevated pressures.The Partnership for eXtreme Xtallography(PX^(2))program at the GSECARS 13-BM-C beamline of the Advanced Photon Source aims to provide state-of-the-art experimental capabilities to determine the crystal structures of materials under extreme conditions using SCXRD.PX^(2) provides a focused x-ray beam(12318μm^(2))at a monochromatic energy of 28.6 keV.High-pressure SCXRD experiments are performed with a six-circle diffractometer and a Pilatus3 photon-counting detector,facilitated by a membrane system for remote pressure control and an online ruby fluorescence system for pressure determination.The efficient,high-quality crystal structure determination at PX^(2) is exemplified by a study of pressure-induced phase transitions in natural ilvaite[CaFe^(2+)_(2 )Fe^(3+)Si_(2)O_(7)O(OH),P2_(1)/a space group].Two phase transitions are observed at high pressure.The SCXRD data confirm the already-known ilvaite-I(P2_(1)/a)→ilvaite-II(Pnam)transformation at 0.4(1)GPa,and,a further phase transition is found to occur at 22.8(2)GPa where ilvaite-II transforms into ilvaite-III(P2_(1)/a).The crystal structure of the ilvaite-III is solved and refined in the P2_(1)/a space group.In addition to the ilvaite-I→ilvaite-II→ilvaite-III phase transitions,two minor structural modifications are observed as discontinuities in the evolution of the FeO6 polyhedral geometries with pressure,which are likely associated with magnetic transitions. | Jingui Xu Dongzhou Zhang Sergey N.Tkachev Przemyslaw K.Dera | 2022 | Matter and Radiation at Extremes2022，7，2： | 0 |
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