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| 1 | Petrogenesis and dating of the Kangding complex,Sichuan Province显示文摘An analysis of major and trace element geochemistry and SHRIMP U-Pb zircon dating of mafic, intermediate, and felsic rocks from the Mianning metamorphic complex of Si- chuan Province was conducted. One of our conclusions is that a majority of the zircons crystal- lized between 721 and 773 Ma in a magmatic regime. The complexes contain early to late Pa- leo-proterozoic relict zircons from ancient continental crust. The oldest age, 2468 Ma, may rep- resent the basement of the Yangtze block. Overgrowth zircon rims and palingenetic zircons have been observed and dated, and are believed to have formed after crystallization, during Paleozoic and Mesozoic metamorphic-anatexis. We also conclude that depletion of Nb, Ta, HREE, in a spider-diagram normalized to primitive mantle and calc-alkaline association, implies that they formed in island-arc or under-plating settings. | CHEN Yuelong 1 , LUO Zhaohua 1 , ZHAO Junxiang, LI Zhihong, ZHANG Hongfei & SONG Biao 3 1. Faculty of Earth Sciences and Natural Resources, China University of Geosciences, Beijing 100083, China 2. Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China 3. Beijing SHRIMP Center, Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China | 2005 | Science China Earth Sciences2005，48，5： | 40 |
| 2 | Using borehole core analysis to reveal Late Quaternary paleoearthquakes along the Nankou-Sunhe Fault,Beijing显示文摘The Nankou-Sunhe Fault is a buried active normal fault that traverses the urban area of Beijing.Its seismic risks have caused considerable concerns.This paper studies paleoearthquakes along this fault by analyzing and correlating bore-hole cores obtained from triple-tube coring,incorporating experience acquired from trenching.As a result,a model for identifying earthquake-derived colluvium by sediment-core analysis is proposed.Triple-tube coring technique is useful to collect continuous undis-turbed soil core near the Nankou-Sunhe Fault.By identifying fault-scarp colluviums,determining cumulative displacement,and analysing stratum thickening on the hanging wall,we are able to establish a preliminary paleoearthquake sequence consisting of 13 surface-rupturing events since 60 ka.The seismic history can be divided into three periods based on different recurrence intervals.Between 60 and 40 ka,three earthquakes occurred with recurrence interval of ~10 ka.From 40 to 25 ka,there were six earthquakes with the recurrence interval of about 2.5 ka.In the last 25 ka,four earthquakes have taken place with the recurrence interval varying considerably.The recurrence interval between the last three events is ~5 ka.Smaller recurrence intervals correspond to stages of faster fault slip.The coseismic displacement of a single event is 0.8 to 2.2 m,average 1.4 m,largely equivalent to moment magnitudes 6.7-7.1.This study demonstrates the feasibility of bore-hole drilling in investigating paleoearthquakes along normal faults.It also suggests that closely spaced boreholes with continuous undisturbed cores are essential for reconstructing the complete paleoearthquake sequence. | ZHANG ShiMin WANG DanDan LIU XuDong ZHANG GuoHong ZHAO JunXiang LUO MingHui REN JunJie WANG Rui ZHANG YingLi | 2008 | Science China Earth Sciences2008，51，8： | 11 |
| 3 | Additively manufactured biodegradable porous magnesium implants for elimination of implant-related infections:An in vitro and in vivo study显示文摘Magnesium(Mg)alloys that have both antibacterial and osteogenic properties are suitable candidates for orthopedic implants.However,the fabrication of ideal Mg implants suitable for bone repair remains challenging because it requires implants with interconnected pore structures and personalized geometric shapes.In this study,we fabricated a porous 3D-printed Mg-Nd-Zn-Zr(denoted as JDBM)implant with suitable mechanical properties using selective laser melting technology.The 3D-printed JDBM implant exhibited cytocompatibility in MC3T3-E1 and RAW267.4 cells and excellent osteoinductivity in vitro.Furthermore,the implant demonstrated excellent antibacterial ratios of 90.0% and 92.1% for methicillin-resistant S.aureus(MRSA)and Escherichia coli,respectively.The 3D-printed JDBM implant prevented MRSA-induced implant-related infection in a rabbit model and showed good in vivo biocompatibility based on the results of histological evaluation,blood tests,and Mg2+deposition detection.In addition,enhanced inflammatory response and TNF-α secretion were observed at the bone-implant interface of the 3D-printed JDBM implants during the early implantation stage.The high Mg^(2+)environment produced by the degradation of 3D-printed JDBM implants could promote M1 phenotype of macrophages(Tnf,iNOS,Ccl3,Ccl4,Ccl5,Cxcl10,and Cxcl2),and enhance the phagocytic ability of macrophages.The enhanced immunoregulatory effect generated by relatively fast Mg^(2+)release and implant degradation during the early implantation stage is a potential antibacterial mechanism of Mg-based implant.Our findings indicate that 3D-printed porous JDBM implants,having both antibacterial property and osteoinductivity,hold potential for future orthopedic applications. | Kai Xie Nanqing Wang Yu Guo Shuang Zhao Jia Tan Lei Wang Guoyuan Li Junxiang Wu Yangzi Yang Wenyu Xu Juan Chen Wenbo Jiang Penghuai Fu Yongqiang Hao | 2022 | Bioactive Materials2022，7，2： | 8 |
| 4 | SERK Receptor-like Kinases Control Division Patterns of Vascular Precursors and Ground Tissue Stem Cells during Embryo Development in Arabidopsis显示文摘During embryo development, the vascular precursors and ground tissue stem cells divide to renew them-selves and produce the vascular tissue, endodermal cells, and cortical cells. However, the molecular mech-anisms regulating division of these stem cells have remained largely elusive. In this study, we show that loss of function of SOMATIC EMBRYOGENESIS RECEPTOR-UKE KINASE (SERK) genes results in aberrant em-bryo development. Fewer cortical, endodermal, and vascular cells are generated in the embryos of serk1 serk2bak1 triple mutants. WUSCHEL-RELATED HOMBOBOX5 (WOXS) is ectopically expressed in vascular cells of serkl serk2 bak1 embryos. The first transverse division of vascular precursors in mid-globular em-bryos and second asymmetric division of ground tissue stem cells in early-heart embryos are abnormally altered to a longitudinal division. The embryo defects can be partially rescued by constitutively activated mitogen-activated protein kinase (MAPK) kinase kinase YODA (YDA) and MAPK kinase MKK5. Taken together, our results reveal that SERK-mediated signals regulate division patterns of vascular precursors and ground tissue stem cells, likely via the YDA-MKK4/5 cascade, during embryo development. | Huiqiang Li Zeping Cai Xiaojuan Wang Meizhen Li Yanwei Cui Nan Cui Fei Yang Mingsong Zhu Junxiang Zhao Wenbin Du Kai He Jing Yi Frans E.Tax Suiwen Hou Jia Li Xiaoping Gou | 2019 | Molecular Plant2019，12，7： | 7 |
| 5 | Two-dimensional optical spatial differentiation and high-contrast imaging显示文摘Optical analog signal processing technology has been widely studied and applied in a variety of science and engineering fields, with the advantages of overcoming the low-speed and high-power consumption associated with its digital counterparts. Much attention has been given to emerging metasurface technology in the field of optical imaging and processing systems. Here, we demonstrate, for the first time, broadband two-dimensional spatial differentiation and high-contrast edge imaging based on a dielectric metasurface across the whole visible spectrum. This edge detection method works for both intensity and phase objects simply by inserting the metasurface into a commercial optical microscope. This highly efficient metasurface performing a basic optical differentiation operation opens up new opportunities in applications of fast,compactible and power-efficient ultrathin devices for data processing and biological imaging. | Junxiao Zhou Haoliang Qian Junxiang Zhao Min Tang Qianyi Wu Ming Lei Hailu Luo Shuangchun Wen Shaochen Chen Zhaowei Liu | 2021 | National Science Review2021，8，6： | 6 |
| 6 | Grazing alters environmental control mechanisms of evapotranspiration in an alpine meadow of the tibetan Plateau显示文摘Aims Evapotranspiration(Et)is an important component of the terrestrial water cycle and is easily affected by external disturbances,such as climate change and grazing.Identifying Et responses to grazing is instructive for determining grazing activity and informative for understanding the water cycle.Methods this study utilized 2 years(2014 and 2017)of eddy covariance data to test how grazing regulated Et for an alpine meadow ecosystem on the tibetan Plateau(tP)by path analysis.Important Findings Radiation dominated Et with a decision coefficient of 64-74%.the soil water content(SWc)worked as the limiting factor in the fenced site.However,in the grazing site,the limiting factor was the vapor pressure deficit(VPD).Grazing had large effects on Et because it greatly affected the water conditions.the SWc and VPD were enhanced by 14.63%and 4.36%in the grazing site,respectively.therefore,sufficient water was supplied to Et,especially during drought,and strengthened the transpiration pull.As a result,a favorable micrometeorological environment was created for Et.Grazing shifted the limiting factor of Et from the SWc to VPD,which weakened the limiting effect of the water conditions on Et and advanced the Et peak time.In addition,grazing altered the compositions of Et by changing the community structure,which directly resulted in an increased Et.In summary,grazing enhanced Et through altering the community structure and micrometeorological environments.the findings of this study further improve our understanding of the driving mechanisms of grazing on Et and will improve our predictions for the global water cycle. | Tingting An Mingjie Xu Tao Zhang Chengqun Yu Yingge Li Ning Chen Jiaxing Zu Junxiang Li Juntao Zhu Yi Sun Tingting Zhao Guirui Yu | 2019 | Journal of Plant Ecology2019，12，5： | 3 |
| 7 | Attribution of the Langshan Tectonic Belt: Evidence from zircon U-Pb ages and Hf isotope compositions显示文摘This study describes a previously unidentified Neoproterozoic mafic dyke emplaced in the northern flank of the Langshan Tectonic Belt. This dyke intruded into the micaquartz schist of the Zhaertaishan Group, and yielded an age of 908 ± 8 Ma. The youngest U-Pb ages of micaquartz schist from the Zhaertaishan Group in the Langshan area were 1118 ± 33 Ma,1187 ± 3 Ma and 1189 ± 39 Ma,suggesting that the depositional age of the protolith of the schist was between 908 ± 8 Ma and 1118 ± 33 Ma. In addition, 436 U-Pb age data and 155 Lu-Hf isotopic data from six samples in the Langshan Tectonic Belt and one Permian greywacke from the Wuhai area show distinct differences between the northern and southern flanks of the Main Langshan area. The U-Pb ages of the northern flank are primarily Meso-Neoproterozoic; similar ages have not been identified in the southern flank to date.Moreover, two-stage Hf model ages of the northern flank feature three age peaks at ~900 Ma,~1700 Ma and ~2600 Ma; this differs from Hf model ages of the southern flank, which feature one strong age peak at ~2700 Ma. These results suggest that the northern and southern flanks of the Main Langshan area have different geochronologic characteristics and should be divided further. Based on the U-Pb ages and Hf model ages, the northern and southern flanks of the Main Langshan area are named the North and South Langshan Tectonic Belts. Comparison of the U-Pb age and two-stage Hf model age distributions from the North Langshan Tectonic Belt, South Langshan Tectonic Belt, Alxa Block and the North China Craton(NCC) reveal that the North Langshan Tectonic Belt is similar to the Alxa Block and that the South Langshan Tectonic Belt is similar to the NCC. In addition, the zircon U-Pb age of 860 ±7 Ma commonly observed in the Alxa Block was detected in the Permian greywacke from the Wuhai area of the NCC, which suggests that the amalgamation of the North and South Langshan Tectonic belts(i.e.,the amalgamation of the Alxa Block and the NCC), occurred between Devonian and late Permian. | Chuang Bao Yuelong Chen Xiangkun Zhu Junxiang Zhao | 2019 | Geoscience Frontiers2019，10，2： | 2 |
| 8 | Defective arginine metabolism impairs mitochondrial homeostasis in Caenorhabditis elegans显示文摘Arginine catabolism involves enzyme-dependent reactions in both mitochondria and the cytosol,defects in which may lead to hyperargininemia,a devastating developmental disorder.It is largely unknown if defective arginine catabolism has any effects on mitochondria.Here we report that normal arginine catabolism is essential for mitochondrial homeostasis in Caenorhabditis elegans.Mutations of the arginase gene argn-1 lead to abnormal mitochondrial enlargement and reduced adenosine triphosphate(ATP)production in C elegans hypodermal cells.ARGN-1 localizes to mitochondria and its loss causes arginine accumulation,which disrupts mitochondrial dynamics.Heterologous expression of human ARGl or ARG2 rescued the mitochondrial defects of argn-1 mutants.Importantly,genetic inactivation of the mitochondrial basic amino acid transporter SLC-25A29 or the mitochondrial glutamate transporter SLC-25A18.1 fully suppressed the mitochondrial defects caused by argn-1 mutations.These findings suggest that mitochondrial damage probably contributes to the pathogenesis of hyperargininemia and provide clues for developing therapeutic treatments for hyperargininemia. | Ruofeng Tang Xin Wang Junxiang Zhou Fengxia Zhang Shan Zhao Qiwen Gan Liyuan Zhao Fengyang Wang Qian Zhang Jie Zhang Guodong Wang Chonglin Yang | 2020 | Journal of Genetics and Genomics2020，47，3： | 2 |
| 9 | Large-scale multiferroic complex oxide epitaxy with magnetically switched polarization enabled by solution processing显示文摘Complex oxides with tunable structures have many fascinating properties,though high-quality complex oxide epitaxy with precisely controlled composition is still out of reach.Here we have successfully developed solution-based single-crystalline epitaxy for multiferroic(1-x)BiTi(1-y)/2FeyMg(1-y)/2O3–(x)CaTiO3(BTFM–CTO)solid solution in large area,confirming its ferroelectricity at the atomic scale with strong spontaneous polarization.Careful compositional tuning leads to a bulk magnetization of 0.07±0.035μB/Fe at room temperature,enabling magnetically induced polarization switching exhibiting a large magnetoelectric coefficient of 2.7–3.0×10^-7 s/m.This work demonstrates the great potential of solution processing in large-scale complex oxide epitaxy and establishes novel room-temperature magnetoelectric coupling in epitaxial BTFM–CTO film,making it possible to explore a much wider space of composition,phase,and structure that can be easily scaled up for industrial applications. | Cong Liu Feng An Paria S.M.Gharavi Qinwen Lu Junkun Zha Chao Chen Liming Wang Xiaozhi Zhan Zedong Xu Yuan Zhang Ke Qu Junxiang Yao Yun Ou Zhiming Zhao Xiangli Zhong Dongwen Zhang Nagarajan Valanoor Lang Chen Tao Zhu Deyang Chen Xiaofang Zhai Peng Gao Tingting Jia Shuhong Xie Gaokuo Zhong Jiangyu Li | 2020 | National Science Review2020，7，1： | 2 |
| 10 | Synthesis and Characterization of Bismaleimide-polyetherimide-titania Hybrid显示文摘 | Zhao Lin Li Liang Tian Junxiang | 2004 | Composites Part A:Applied Science and Manufacturing2004，35，10： | 1 |
| 11 | Nemo-like Kinase (NLK) Involves in Neuronal Apoptosis after Traumatic Brain Injury显示文摘 | Zhen LI Gang Cui Junxiang Wang Zhihua yu Li Zhao ZhengWen Lv | 2012 | Cellular and Molecular Neurobiology2012，，3： | 1 |
| 12 | Application of Optically Stimulated Luminescence Technique in Exploring a Concealed Sandstone-type Uranium Deposit显示文摘Identifying ore-induced geochemical anomalies at the surface that indicate concealed deposits in buried areas remains a significant challenge in geochemical exploration. In this study, in order to trace the source of the geochemical anomalies, systematic luminescence intensity analyses were conducted on quartz grains from the Quaternary regolith at the Hadatu sandstone-type uranium deposit in the Erenhot Basin. The optically stimulated luminescence(OSL) ages were much older than the depositional ages of the Quaternary regolith. Moreover, quartz OSL ages were closely related to both borehole grades and sampling depths. Thus, the abnormal mineral OSL ages from near-surface sediments were ultimately controlled by the sandstone-type uranium deposits. This is identical to the rapid changes of quartz OSL ages(0.063 ka/cm) and equivalent doses(0.19 Gy/cm) with depths in a given sampling site. The instantaneous soil radon concentration was positively correlated with the quartz OSL apparent age, indicating their ore-induced origin and, as a result, their effectiveness in the exploration of concealed uranium deposits. Other parameters, including mobile-state uranium and;Po contents, were poorly correlated with quartz OSL ages and therefore should only be used with caution for geochemical exploration. This is the first time an attempt has been made to discriminate the ore-induced sources for different surface anomaly parameters, including instantaneous soil radon, mobile-state uranium and;Po contents for concealed sandstonetype uranium deposits. | KANG Huan CHEN Yuelong XUE Guoliang ZHAO Junxiang ZHANG Na ZHANG Yangyang | 2022 | Acta Geologica Sinica(English Edition)2022，96，2： | 1 |
| 13 | Synthesis and characterization of bismaleimide-polytherimide-titania hybrid显示文摘 | Zhao Lin Li Liang Tian Junxiang | 2004 | Composites:A2004，35，： | 1 |
| 14 | Correlation of adsorbent cavity structure with adsorption behavior and interaction of long-chainα-olefin/paraffin on microporous adsorbents显示文摘Long-chainα-olefins have a high added value as important raw materials for many highly marketable products.Fishcher-Tropsch synthesis products contain ultrahigh-contentα-olefins,which are of great value if the challenging separation ofα-olefin/paraffin is achieved through energy-saving ways,for which adsorption separation is an attractive technology.One of the most significant differences between the adsorption separation of long-chain and light hydrocarbons is the steric hindrance of the molecular chain.Herein,we propose a combination of window size,metal node spacing,and bending degree to quantitatively describe the adsorption cavity structure for the separation of long-chainα-olefin/paraffin.The general cavity structural characteristics of microporous materials with good separation performance for long-chainα-olefin/paraffin are revealed.The selective adsorption of liquid C6 and C_(8)α-olefin/paraffin mixtures on CuBTC(BTC=benzene-1,3,5-tricarboxylate)was studied in detail to reveal the influence of the cavity structure on the adsorption and interaction using a combination of batch adsorption experiments and molecular simulation techniques.CuBTC exhibited 360 and 366 mg/g olefin adsorption capacities for C6 and C8 linearα-olefins,respectively.The adsorption energies were−0.540 and−0.338 eV for C8 linearα-olefin and paraffin,respectively.The contributions of different types of interactions to the overall adsorption energy were quantified to illustrate the adsorption energy difference betweenα-olefin/paraffin and CuBTC.This work provides a new understanding of the long-chain hydrocarbon adsorption behavior different from ethylene/ethane and propylene/propane,which guides the design of adsorbents forα-olefin/paraffin separation. | Ruihan Yang Fangyu Zhao Shafqat Ullah Xiao Chen Junxiang Ma Yuan Gao Yujun Wang Guangsheng Luo | 2023 | Nano Research2023，16，4： | 0 |
| 15 | 3D Printed Ultra-thin Acoustic Metamaterials with Adaptable Low-frequency Absorption Performance显示文摘The inherent absorption frequency of traditional sound absorbers makes it difficult to solve the problem of acoustic wave removal in a changeable acoustic environment.In this study,acoustic absorption metamaterials(AAMs)with adaptable sound absorption performance were innovatively designed using the structural combination concept and fabricated via 3D printing.Accordingly,two coiled-up channels were combined in a single cell,which could effectively broaden the absorption bandwidth in a limited space.The longitudinal movement of the coiled-up channels endowed the tunable entire depth and internal cavity of the AAMs;thus,the sound absorption performance could be tailored accordingly.Through computational analysis and experimental verification,it was demonstrated that the depth of the AAM could be adjusted from 10 mm to 20 mm,and the corresponding absorption frequencies of the two channels ranged from 206 Hz to 179 Hz and 379 Hz to 298 Hz,respectively.In addition,the finite element results also indicate that the sound absorption bandwidth of AAMs could be further improved by the periodic arrangement of the units.This work opens a promising structural design approach for presenting a route toward acoustic devices with adaptable absorption performances. | Junxiang Fan Lei Zhang Xiaobo Wang Zhi Zhang Shuaishuai Wei Bo Song Aiguo Zhao Xiao Xiang Xuefeng Zhu Yusheng Shi | 2022 | Chinese Journal of Mechanical Engineering(Additive Manufacturing Frontiers)2022，1，3： | 0 |
| 16 | A splice site mutation in the FvePHP gene is associated with leaf development and f lowering time in woodland strawberry显示文摘Leaves and f lowers are crucial for the growth and development of higher plants.In this study we identified a mutant with narrow leaf lets and early f lowering(nlef)in an ethyl methanesulfonate-mutagenized population of woodland strawberry(Fragaria vesca)and aimed to identify the candidate gene.Genetic analysis revealed that a single recessive gene,nlef,controlled the mutant phenotype.We found that FvH4_1g25470,which encodes a putative DNA polymeraseαwith a polymerase and histidinol phosphatase domain(PHP),might be the candidate gene,using bulked segregant analysis with whole-genome sequencing,molecular markers,and cloning analyses.A splice donor site mutation(C to T)at the 5-end of the second intron led to an erroneous splice event that reduced the expression level of the full-length transcript of FvePHP in mutant plants.FvePHP was localized in the nucleus and was highly expressed in leaves.Silencing of FvePHP using the virus-induced gene silencing method resulted in partial developmental defects in strawberry leaves.Overexpression of the FvePHP gene can largely restore the mutant phenotype.The expression levels of FveSEP1,FveSEP3,FveAP1,FveFUL,and FveFT were higher in the mutants than those in‘Yellow Wonder’plants,probably contributing to the early f lowering phenotype in mutant plants.Our results indicate that mutation in FvePHP is associated with multiple developmental pathways.These results aid in understanding the role of DNA polymerase in strawberry development. | Baotian Wang Weijia Li Kexin Xu Yingying Lei Di Zhao Xue Li Junxiang Zhang Zhihong Zhang | 2023 | Horticulture Research2023，10，1： | 0 |
| 17 | Half space object classification via incident angle based fusion of radar and infrared sensors显示文摘In this paper,we introduce an incident angle based fusion method for radar and infrared sensors to improve the recognition rate of complex targets under half space scenarios,e.g.,vehicles on the ground in this paper.For radar sensors,convolutional operation is introduced into the autoencoder,a“winner-take-all(WTA)”convolutional autoencoder(CAE)is used to improve the recognition rate of the radar high resolution range profile(HRRP).Moreover,different from the free space,the HRRP in half space is more complex.In order to get closer to the real situation,the half space HRRP is simulated as the dataset.The recognition rate has a growth more than 7%com-pared with the traditional CAE or denoised sparse autoencoder(DSAE).For infrared sensor,a convolutional neural network(CNN)is used for infrared image recognition.Finally,we com-bine the two results with the Dempster-Shafer(D-S)evidence theory,and the discounting operation is introduced in the fusion to improve the recognition rate.The recognition rate after fusion has a growth more than 7%compared with a single sensor.After the discounting operation,the accuracy rate has been improved by 1.5%,which validates the effectiveness of the proposed method. | HE Zhenyu ZHUGE Xiaodong WANG Junxiang YU Shihao XIE Yongjun ZHAO Yuxiong | 2022 | Journal of Systems Engineering and Electronics2022，33，5： | 0 |
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