|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Ages, Sources and Tectonic Settings of the Triassic Igneous Rocks in the Easternmost Segment of the East Kunlun Orogen, Central China显示文摘U–Pb analysis of zircons from igneous rocks in the Elashan Mountain, easternmost segment of the East Kunlun Orogen yielded 252–232 Ma. Geochemically, these rocks are mainly high in SiO_2, K_2O and K_2O+Na_2O contents, low in P_2O_5 and TiO_2 contents, depleted in Ba, Sr, P, Ti and enriched in U, Hf, Zr, showing features of I–type granite. The zircon εHf(t) values of the Early Triassic Jiamuge'er rhyolite porphyry(252±3 Ma) are positive(+1.6 to +12.1), suggesting a juvenile crustal source mixing with little old crustal component, and the zircon εHf(t) values of the Middle Triassic Manzhang'gang granodiorite(244±3 Ma) and Dehailong diorite(237±3 Ma) are predominately negative(-8.4 to +1.0), indicating an older crustal source. In comparison, the zircon εHf(t) values of the Late Triassic syenogranites from Suigen'ergang(234±2Ma), Ge'ermugang(233±2 Ma) and Yue'ergen(232±3 Ma) plutons vary from-3.8 to +5.0, suggesting a crust-mantle mixing source. From Early–Middle Triassic(252–237 Ma) to Late Triassic(234–232 Ma), the geochemical characteristics of these rocks show the change from a subduction–collision setting to a post-collision or within-plate setting. By comparing of these new age data with 77 zircon U–Pb ages of igneous rocks of the eastern part of East Kunlun orogen from published literatures, we conclude that the igneous rocks of Elashan Mountain and these of the eastern part of East Kunlun Orogen belong to one magmatic belt. All these data indicate that the Triassic magmatic events of the eastern part of East Kunlun Orogen can be divided into three stages: 252–238 Ma, 238–226 Ma and 226–212 Ma. Statistically, the average εHf(t) values of the threestage igneous rocks show a tendency, from the old to young, from-0.75±0.25 to lower-2.65±0.52 and then to-1.22±0.25, respectively, which reveal the change of their sources. These characteristics can be explained as a crust-mantle mixing source generated in a subductional stage, mainly crust source in a syn–collisional stage and a crust-mantle mixing source(lower crust with mantle-derived underplating magma) in a post-collisional stage. The identification of these three magmatic events in the Elashan Mountain, including all the eastern part of East Kunlun Orogen, provides new evidence for better understanding of the tectonic evolution of the northward subduction and closure of the Paleo-Tethyan(252–238 Ma), the collision of the Songpan–Ganzi block with the southern margin of Qaidam block(238–226 Ma), and the post–collisional setting(226–212 Ma) during the Early Mesozoic period. | REN Haidong WANG Tao ZHANG Lei WANG Xiaoxia HUANG He FENG Chengyou TESCHNER Claudia SONG Peng | 2016 | Acta Geologica Sinica(English Edition)2016，90，2： | 13 |
| 2 | The IRE1α-XBP1 pathway regulates metabolic stressinduced compensatory proliferation of pancreatic β-cells显示文摘 | Tongfu Xu Liu Yang Cheng Yan Xiaoxia Wang Ping Huang Feng Zhao Liyun Zhao Mingliang Zhang Weiping Jia Xiangdong Wang Yong Liu | 2014 | Cell Research2014，24，9： | 8 |
| 3 | 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 |
| 4 | Whole-genome sequencing provides insights into the genetic diversity and domestication of bitter gourd(Momordica spp.)显示文摘Bitter gourd(Momordica charantia)is a popular cultivated vegetable in Asian and African countries.To reveal the characteristics of the genomic structure,evolutionary trajectory,and genetic basis underlying the domestication of bitter gourd,we performed whole-genome sequencing of the cultivar Dali-11 and the wild small-fruited line TR and resequencing of 187 bitter gourd germplasms from 16 countries.The major gene clusters(Bi clusters)for the biosynthesis of cucurbitane triterpenoids,which confer a bitter taste,are highly conserved in cucumber,melon,and watermelon.Comparative analysis among cucurbit genomes revealed that the Bi cluster involved in cucurbitane triterpenoid biosynthesis is absent in bitter gourd.Phylogenetic analysis revealed that the TR group,including 21 bitter gourd germplasms,may belong to a new species or subspecies independent from M.charantia.Furthermore,we found that the remaining 166 M.charantia germplasms are geographically differentiated,and we identified 710,412,and 290 candidate domestication genes in the South Asia,Southeast Asia,and China populations,respectively.This study provides new insights into bitter gourd genetic diversity and domestication and will facilitate the future genomics-enabled improvement of bitter gourd. | Junjie Cui Yan Yang Shaobo Luo Le Wang Rukui Huang Qingfang Wen Xiaoxia Han Nansheng Miao Jiaowen Cheng Ziji Liu Changyuan Zhang Chengcheng Feng Haisheng Zhu Jianwen Su Xinjian Wan Fang Hu Yu Niu Xiaoming Zheng Yulan Yang Dai Shan Zhensheng Dong Weiming He Narinder P.S.Dhillon Kailin Hu | 2020 | Horticulture Research2020，7，1： | 7 |
| 5 | A New Safety Assessment Method Based on Belief Rule Base With Attribute Reliability显示文摘Safety assessment is one of important aspects in health management.In safety assessment for practical systems,three problems exist:lack of observation information,high system complexity and environment interference.Belief rule base with attribute reliability(BRB-r)is an expert system that provides a useful way for dealing with these three problems.In BRB-r,once the input information is unreliable,the reliability of belief rule is influenced,which further influences the accuracy of its output belief degree.On the other hand,when many system characteristics exist,the belief rule combination will explode in BRB-r,and the BRB-r based safety assessment model becomes too complicated to be applied.Thus,in this paper,to balance the complexity and accuracy of the safety assessment model,a new safety assessment model based on BRB-r with considering belief rule reliability is developed for the first time.In the developed model,a new calculation method of the belief rule reliability is proposed with considering both attribute reliability and global ignorance.Moreover,to reduce the influence of uncertainty of expert knowledge,an optimization model for the developed safety assessment model is constructed.A case study of safety assessment of liquefied natural gas(LNG)storage tank is conducted to illustrate the effectiveness of the new developed model. | Zhichao Feng Wei He Zhijie Zhou Xiaojun Ban Changhua Hu Xiaoxia Han | 2021 | IEEE/CAA Journal of Automatica Sinica2021，8，11： | 6 |
| 6 | CFD modeling of turbulent reacting flow in a semi-batch stirred-tank reactor显示文摘For the mixing-sensitive reactions, both chemical kinetics and mixing conditions of the reactants determine the distributions of products. The direct quadrature method of moments combining with the interaction by exchange with the mean micro-mixing model(DQMOM-IEM) has been validated for the chemical reacting flows in microreactors. Quite encouraging simulation results offer great promise, but the applicability of this method is needed to be explored furthermore, such as in stirred reactors. In this work, the two-environment DQMOM-IEM model was created with C language and used to customize Fluent through the user-defined functions. The mixing effects on the course of parallel competing chemical reactions carried out in a semi-batch single-phase stirred reactor were predicted. The simulation results show that the rising feed velocity enlarges the volume of reaction zone and maximize the yield of the by-product, which also indicates that the feed stream is more difficultly dispersed into the main stream and the zone surrounding feedpipe exit with high turbulent kinetic dissipation rate cannot be efficiently used. | Xiaoxia Duan Xin Feng Chao Yang Zaisha Mao | 2018 | Chinese Journal of Chemical Engineering2018，26，4： | 6 |
| 7 | A hidden fault prediction model based on the belief rule base with power set and considering attribute reliability显示文摘Hidden faults are important characteristics of complex systems that cannot be observed directly.The hidden behavior of a system, such as the health state and safety level, has a direct correlation with these hidden faults. After the predicted hidden behavior reaches a fault boundary, certain measures must be taken to avoid fault occurrences. Thus, hidden faults can be predicted by the hidden behavior of a system.The belief rule base(BRB) has been used to predict hidden behaviors. However, two problems remain to be solved in engineering practice. First, when the observed information is absent, ignorance may exist in the output. If only global ignorance is considered, it may be unreasonable in certain cases, which can influence the prediction model. Second, the effects of disturbance factors such as noise and sensor quality may cause the reliability of the gathered information to decline, which indirectly leads to unreliability of the hidden behavior. Thus, to address the global ignorance and unreliable hidden behavior, a new hidden BRB model with a power set and considering attribute reliability(PHBRB-r) is proposed for hidden fault prediction. In the PHBRB-r model, the effects of disturbance factors on hidden behavior are considered using attribute reliability, and the discernment frame is a power set. A case study of hidden fault prediction is conducted to demonstrate the effectiveness of the PHBRB-r model. | Zhijie ZHOU Zhichao FENG Changhua HU Xiaoxia HAN Zhiguo ZHOU Gailing LI | 2019 | Science China(Information Sciences)2019，62，10： | 6 |
| 8 | Regulation of phenylpropanoid biosynthesis by MdMYB88 and MdMYB124 contributes to pathogen and drought resistance in apple显示文摘MdMYB88 and MdMYB124 have been demonstrated to be responsible for lignin accumulation in apple under drought stress.In this study,using a metabolomic approach,we identified differentially accumulated phenylpropanoid and flavonoid metabolites in MdMYB88/124 transgenic RNAi plants under control and long-term drought stress conditions in apple roots.We confirmed the regulation of phenylalanine by MdMYB88 and MdMYB124 via UPLC-MS in apple roots under both control and drought conditions.Using Electrophoretic Mobility Shift Assay(EMSA)and ChIPquantitative PCR(qPCR)analyses,we found that MdMYB88 positively regulates the MdCM2 gene,which is responsible for phenylalanine biosynthesis,through binding to its promoter region.Under long-term drought conditions,MdMYB88/124 RNAi plants consistently accumulated increased amounts of H2O2 and MDA,while MdMYB88 and MdMYB124 overexpression plants accumulated decreased amounts of H2O2 and MDA.We also examined the accumulation of metabolites in the phenylpropanoid biosynthesis pathway in the leaves of MdMYB88 and MdMYB124 transgenic apple plants after long-term drought stress.We found that metabolites responsible for plant defense,including phenylpropanoids and flavonoids,accumulated less in the RNAi plants but more in the overexpression plants under both control and drought conditions.We further demonstrated that MdMYB88/124 RNAi plants were more sensitive to Alternaria alternata f.sp.mali and Valsa mali,two pathogens that currently severely threaten apple production.In contrast,MdMYB88 and MdMYB124 overexpression plants were more tolerant to these pathogens.The cumulative results of this study provided evidence for secondary metabolite regulation by MdMYB88 and MdMYB124,further explained the molecular roles of MdMYB88 and MdMYB124 in drought resistance,and provided information concerning molecular aspects of their roles in disease resistance. | Dali Geng Xiaoxia Shen Yinpeng Xie Yusen Yang Ruiling Bian Yuqi Gao Pengmin Li Liying Sun Hao Feng Fengwang Ma Qingmei Guan | 2020 | Horticulture Research2020，7，1： | 5 |
| 9 | Facile synthesis of Co and Ce dual-doped Ni3S2 nanosheets on Ni foam for enhanced oxygen evolution reaction显示文摘Nano Research volume 13,pages2130–2135(2020)Cite this article 376 Accesses 2 Citations Metrics details Abstract Developing efficient and stable oxygen evolution reaction(OER)electrocatalysts via doping strategy has well-documented for electrochemical water splitting.Herein,a homogeneous structure(denoted as Co/Ce-Ni3S2/NF)composed of Co and Ce dual doped Ni3S2 nanosheets on nickel foam was synthesized by a facile one-step hydrothermal method.Co and Ce dopants are distributed inside the host sulfide,thereby raising the active sites and the electrical conductivity.Besides,the CeOx nanoparticles generated by part of the Ce dopants as a cocatalyst further improve the catalytic activity by adding defective sites and enhancing the electron transfer.As a consequence,the obtained Co/Ce-Ni3S2/NF electrode exhibits better electrocatalytic activity than single Co or Ce doped Ni3S2 and pure Ni3S2,with low overpotential(286 mV)at 20 mA-cm^−2,a small Tafel slope and excellent long-term durability in strong alkaline solution.These results presented here not only offer a novel platform for designing transition metal and lanthanide dual-doped catalysts,but also supply some guidelines for constructing catalysts in other catalytic applications. | Xiaoxia Wu Tong Zhang Jiaxu Wei Pengfei Feng Xingbin Yan Yu Tang | 2020 | Nano Research2020，13，8： | 5 |
| 10 | Copper-copper iodide hybrid nanostructure as hole transport material for efficient and stable inverted perovskite solar cells显示文摘A CuI coated Cu hybrid nanostructure by partial iodation of Cu nanowires was used as hole transport material(HTM) to enhance the charge transfer in inverted perovskite solar cells(PSCs). The outer CuI achieved efficient charge extraction, and the inner copper facilitated the extracted charges to be rapidly transferred, further improving the overall cell performance. Furthermore,we employed a mixture of [6,6]-phenyl-C71-butyric acid methyl ester(PCBM) and ZnO nanoparticles as electron transport material(ETM) to achieve the fabrication of stable PSCs. The best efficiency was up to 18.8%. This work represents a fundamental clue for the design of efficient and stable PSCs using the chemical in-situ construction strategy for HTM and integration of PCBM and ZnO as ETM. | Jing Cao Binghui Wu Jian Peng Xiaoxia Feng Congping Li Yu Tang | 2019 | Science China Chemistry2019，62，3： | 4 |
| 11 | Hierarchical flower-like cobalt phosphosulfide derived from Prussian blue analogue as an efficient polysulfides adsorbent for long-life lithium-sulfur batteries显示文摘Lithium-sulfur (Li-S) battery as one of the most attractive candidates for energy storage systems has attracted extensive interests.Herein,for the first time,hierarchical flower-like cobalt phosphosulfide architectures (defined as 'CoSP') derived from Prussian blue analogue (PBA) was fabricated through the conversion of Co-based PBA in PxSy atmosphere.The as-prepared polar CoSP could effectively trap polysulfides through the formation of strong chemical bonds.In addition,after the combination of CoSP with high conductive rGO,the obtained CoSP/rGO as sulfur host material exhibits ultralow capacity decay rate of 0.046% per cycle over 900 cycles at a current density of 1 C.The excellent performance could be attributed to the shortened lithium diffusion pathways,fastened electron transport ability during polysulfide conversion,and increased much more anchor active sites to polysulfides,which is expected to be a promising material for Li-S batteries.It is believed that the as-prepared CoSP/rGO architectures will shed light on the development of novel promising materials for Li-S batteries with high cycle stability. | Xiaoxia Chen Xuyang Ding Haliya Muheiyati Zhenyu Feng Liqiang Xu Weini Ge Yitai Qian | 2019 | Nano Research2019，12，5： | 2 |
| 12 | Fabrication of nanozyme@DNA hydrogel and its application in biomedical analysis显示文摘Nanozymes 由于容易的准备和低费用的优点收到了大注意。不同于乐意地适应生理的环境的自然的酶,人工的 nanozymes 是容易的在复杂临床的样品使钝化(例如,浆液) ,它可以损坏催化能力并且因而在生物医学的分析限制申请。为了征服这个问题,在这研究,我们由把 nanozymes 合并到纯 DNA hydrogel 制作了新奇 nanozyme@DNA hydrogel 建筑学。金 nanoparticles (AuNPs ) 作为模型 nanozyme 被采用。当他们被 hydrogel 保护,结果显示在 DNA hydrogel 合并的 AuNPs 在浆液保留他们的催化能力,而 AuNPs 完全独自在浆液失去催化能力。在浆液的氢过氧化物和葡萄糖的察觉基于 AuNPs@DNA hydrogel 的催化作用被完成。分别地,各个的察觉限制到达 1.7 和 38 M 它等于用自然的酶获得的价值。除机制以外,一些另外的优点例如再循环能力和可获得性,也被探索了。这 nanozyme@DNA hydrogel 体系结构可以在复杂生理的样品为生物医学的分析象 nanozymes 的申请一样为 nanozymes 的利用有一个大潜力。 | Xiaoli Zhu Xiaoxia Mao Zihan Wang Chang Feng Guifang Chen Genxi Li | 2017 | Nano Research2017，10，3： | 2 |
| 13 | Effect of impeller type and scale-up on spatial distribution of shear rate in a stirred tank显示文摘The main spatial distribution features of shear rate in a stirred tank operated with five different radial and axial flow impellers were presented with particle image velocimetry(PIV)experiments.Not only the average shear rate in the whole tank but also the local value in the vicinity of impeller increases linearly with impeller speed.Furthermore,the shear coefficient(Ks,imp)at the impeller outlet is linearly related to the impeller flow number(Nq)and decreases with the increase of Nq in general at the constant power consumption per unit volume(Pv).During scale-up based on the constant Pv and geometric similarity,CFD results show that the volume-averaged shear rate(cavg)for RDT decreases faster than that of other impellers with the impeller tip velocity(Utip).The novel multi-blade combined(MBC)impeller with the increased height-to-diameter ratio of the stirred tank is able to more effectively improve the distribution uniformity of shear rate at the same Pv after scale-up.These studies provide a data basis for selecting the impeller types and improving the shear rate environment in the large-scale stirred tank. | Huina Wang Xiaoxia Duan Xin Feng Zai-Sha Mao Chao Yang | 2022 | Chinese Journal of Chemical Engineering2022，35，2： | 2 |
| 14 | Assessment of strong earthquake risk in the Chinese mainland from 2021 to 2030显示文摘The long-term earthquake prediction from 2021 to 2030 is carried out by researching the active tectonic block boundary zones in the Chinese mainland.Based on the strong earthquake recurrence model,the cumulative probability of each target fault in the next 10 years is given by the recurrence period and elapsed time of each fault,which are adopted from relevant studies such as seismological geology,geodesy,and historical earthquake records.Based on the long-term predictions of large earthquakes throughout the world,this paper proposes a comprehensive judgment scheme based on the fault segments with the seismic gap,motion strongly locked,sparse small-moderate earthquakes,and apparent Coulomb stress increase.This paper presents a comprehensive analysis of the relative risk for strong earthquakes that may occur in the coming 10 years on the major faults in the active tectonic block boundary zones in the Chinese mainland.The present loading rate of each fault is first constrained by geodetic observations;the cumulative displacement of each fault is then estimated by the elapsed time since the most recent strong earthquake. | Zhigang Shao Yanqiang Wu Lingyun Ji Faqi Diao Fuqiang Shi Yujiang Li Feng Long Hui Zhang Wuxing Wang Wenxin Wei Peng Wang Xiaoxia Liu Qi Liu Zhengyang Pan Xiaofei Yin Yue Liu Wei Feng Zhenyu Zou Jia Cheng Renqi Lu Yueren Xu Xi Li | 2023 | Earthquake Research Advances2023，3，1： | 2 |
| 15 | The essential (m,1)-idempotent matrix and its minimal polynomial显示文摘 | Chen Meixiang Lyu Hongbin Feng Xiaoxia | 2013 | International Journal of Applied Mathematics and Statistics2013，41，11： | 1 |
| 16 | The equivalent form of a matrix inequlity and its application显示文摘 | Yang Zhongpeng Feng Xiaoxia | 2006 | J Appl Math & Computing2006，20，12： | 1 |
| 17 | Invariance of rank and nullity for the linear combination of m ( ≥3) -scalar - idempotent matrices显示文摘 | Chen Meixiang Yang Zhongpeng Feng Xiaoxia | 2011 | International Journal of Applied Mathematics and Statistics2011，21，11： | 1 |
| 18 | The essential (m, l) idempotent matrix and its minimal polynomial显示文摘 | Chen Meixiang Lyu Hongbin Feng Xiaoxia | 2013 | International Journal of Applied Mathematics and Statistics2013，41，11： | 1 |
| 19 | Improving the Nowcasting of Strong Convection by Assimilating Both Wind and Reflectivity Observations of Phased Array Radar:A Case Study显示文摘With the advent of the phased array radar(PAR)technology,it is possible to capture the development and evolution of convective systems in a much shorter time interval and with higher spatial resolution than via traditional Doppler radar.Research on the assimilation of PAR observations in numerical weather prediction models is still in its infancy in China.In this paper,the impact of assimilating PAR data on model forecasts was investigated by a case study of a local heavy rainfall event that occurred over Foshan city of Guangdong Province on 26 August 2020,via a series of sensitivity experiments.Both the retrieved three-dimensional wind and hydrometeor fields were assimilated through the nudging method with the Tropical Regional Assimilation Model for South China Sea_Rapid Update Cycle_1km(TRAMS_RUC_1km).The temperature and moisture fields were also adjusted accordingly.The results show that significant improvements are made in the experiments with latent heat nudging and adjustment of the water vapor field,which implies the importance of thermodynamic balance in the initialization of the convective system and highlights the need to assimilate PAR radar observations in a continuous manner to maximize the impact of the data.Sensitivity tests also indicate that the relaxation time should be less than 5 min.In general,for this case,the assimilation of PAR data can significantly improve the nowcasting skill of the regional heavy precipitation.This study is the first step towards operational PAR data assimilation in numerical weather prediction in southern China. | Xiaoxia LIN Yerong FENG Daosheng XU Yuntao JIAN Fei HUANG Jincan HUANG | 2022 | Journal of Meteorological Research2022，36，1： | 1 |
| 20 | Visualized and cascade-enhanced gene silencing by smart DNAzyme-graphene nanocomplex显示文摘BCL-2 gene as well as its products is recognized as a promising target for the molecular targeted therapy of tumors.However,due to certain defense measures of tumor cells,the therapeutic effect based on the gene silencing of BCL-2 is greatly reduced.Here we fabricate a smart response nucleic acid therapeutic that could silence the gene effectively through a dual-targeted and cascade-enhanced strategy.In brief,nano-graphene oxide(GO),working as a nano-carrier,is loaded with a well-designed DNAzyme,which can target and silence the BCL-2 mRNA.Furthermore,upon binding with the BCL-2 mRNA,the enzymatic activity of the DNAzyme can be initiated,cutting a substrate oligonucleotide to produce an anti-nucleolin aptamer AS1411.Nucleolin,a nucleolar phosphoprotein,is known as a stabilizer of BCL-2 mRNA.Via binding and inactivating the nucleolin,AS1411 can destabilize BCL-2 mRNA.By this means of simultaneously targeting mRNA and its stabilizer in an integrated system,effective silencing of the BCL-2 gene of tumor cells is achieved at both the cellular and in vivo levels.After being dosed with this nucleic acid therapeutic and without any chemotherapeutics,apoptosis of tumor cells at the cellular level and apparent shrinkage of tumors in vivo are observed.By labeling a molecular beacon on the substrate of DNAzyme,visualization of the enzymatic activity as well as the tumor in vivo can be also achieved.Our work presents a pure bio-therapeutic strategy that has positive implications for enhancing tumor treatment and avoiding side effects of chemotherapeutics. | Lingjie Ren Xiaoxia Chen Chang Feng Lei Ding Xiaomin Liu Tianshu Chen Fan Zhang Yanli Li Zhongliang Ma Bo Tian Xiaoli Zhu | 2020 | Nano Research2020，13，8： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员