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| 1 | Circumjacent distribution pattern of the Lungmachian graptolitic black shale(early Silurian) on the Yichang Uplift and its peripheral region显示文摘Stratigraphic hiatuses of variable time intervals within the Rhuddanian to early Aeronian(Llandovery, Silurian) are identified in the area bordering East Chongqing, West Hubei and Northwest Hunan in central China. Their distribution suggested the existence of a local uplift, traditionally named the Yichang Uplift. The diachronous nature of the basal black shale of the Lungmachi Formation crossing different belts of this Uplift signifies the various developing stages during the uplifting process.The present paper defines the temporal and spatial distribution pattern of the Yichang Uplift, which might be one of the important controlling factors for the preservation and distribution of the shale gas in this region, as it has been demonstrated that the shale gas exploration is generally less promising in the areas where more of the basal part of the Lungmachi Formation is missing.Therefore, better understanding of the circumjacent distribution pattern developed throughout the uplifting process may provide the important guidance for the shale gas exploration. The present work is a sister study to the published paper, 'Stage-progressive distribution pattern of the Lungmachian black graplolitic shales from Guizhou to Chongqing, Central China'. These two studies thus provide a complete Ordovician-Silurian black shale distribution pattern in the Middle and Upper Yangtze, a region with the major shale gas fields in China. | Xu CHEN Qing CHEN Yongyi ZHEN Hongyan WANG Linna ZHANG Junpeng ZHANG Wenhui WANG Zhaohui XIAO | 2018 | Science China Earth Sciences2018，61，9： | 9 |
| 2 | Hybrid Particle Swarm Optimization Algorithm Based on Entropy Theory for Solving DAR Scheduling Problem显示文摘An efficient task-scheduling algorithm in the Digital Array Radar(DAR) is essential to ensure that it can handle a large number of requested tasks simultaneously. As a solution to this problem, in this paper, we propose an optimization model for scheduling DAR tasks using a hybrid approach. The optimization model considers the internal task structure and the DAR task-scheduling characteristic. The hybrid approach integrates a particle swarm optimization algorithm with a genetic algorithm and a heuristic task-interleaving algorithm. We introduce the chaos theory to optimize initialized particles and use entropy theory to indicate the diversity of particles and adaptively adjust the inertia weight, the crossover probability, and the mutation probability. Then, we improve both the efficiency and global exploration ability of the hybrid algorithm. In the framework of the swarm exploration algorithm, we include a heuristic task-interleaving scheduling algorithm, which not only utilizes the wait interval to transmit or receive subtasks, but also overlaps the receive intervals of different tasks. In a large-scale simulation,we demonstrate that the proposed algorithm is more robust and effective than existing algorithms. | Haowei Zhang Junwei Xie Jiaang Ge Junpeng Shi Zhaojian Zhang | 2019 | Tsinghua Science and Technology2019，24，3： | 8 |
| 3 | Presence, dissemination and removal of antibiotic resistant bacteria and antibiotic resistance genes in urban drinking water system: A review显示文摘Antibiotic resistance in aquatic environment has become an important pollution problem worldwide. In recent years, much attention was paid to antibiotic resistance in urban drinking water systems due to its close relationship with the biosafety of drinking water. This review was focused on the mechanisms of antibiotic resistance, as well as the presence, dissemination and removal of antibiotic resistant bacteria (ARB) and antibiotic resistance genes (ARGs) in the urban drinking water system. First, the presence of ARB and ARGs in the drinking water source was discussed. The variation of concentration of ARGs and ARB during coagulation, sedimentation and filtration process were provided subsequently, in which filtration was proved to be a promising technology to remove ARGs. However, biological activated carbon (BAC) process and drinking water distribution systems (DWDSs) could be incubators which promote the antibiotic resistance, due to the enrichment of ARGs and ARB in the biofilms attached to the active carbon and pipe wall. Besides, as for disinfection process, mechanisms of the inactivation of ARB and the promotion of conjugative transfer of ARGs under chlorine, ozone and UV disinfection were described in detail. Here we provide some theoretical support for future researches which aim at antibiotic resistance controlling in drinking water. | Qiaowen Tan Weiying Li Junpeng Zhang Wei Zhou Jiping Chen Yue Li Jie Ma | 2019 | Frontiers of Environmental Science & Engineering2019，13，3： | 8 |
| 4 | Triglycerides and ratio of triglycerides to high-density lipoprotein cholesterol are better than liver enzymes to identify insulin resistance in urban middle-aged and older non-obese Chinese without diabetes显示文摘 | Sun Yu Li Wenjuan Hou Xinguo Wang Chuan Li Chengqiao Zhang Xiuping Yang Weifang Ma Zeqiang Wang Weiqing Ning Guang Zheng Huizhen Ma Aixia Song Jun Lin Peng Liang Kai Liu Fuqiang Gong Lei Wang Meijian Xiao Juan Yan Fei Yang Junpeng Wang Lingshu Tian Meng Liu Jidong Zhao Ruxing Zhu Ping Chen Li | 2014 | Chinese Medical Journal2014，，10： | 7 |
| 5 | Ordovician integrative stratigraphy and timescale of China显示文摘In this chapter, starting with a brief review of the research history and current status in the studies of the Ordovician chronostratigraphy in China, the subdivision of the Ordovician System, definition and recognition of its series and stage boundaries, and possible stratigraphic gaps are discussed in details in order to establish a multidisciplinary stratigraphic correlation through an integrated approach including lithostratigraphy, biostratigraphy, radiometric dating, chemostratigraphy and magnetostratigraphy. Being internationally accepted, the Ordovician System is now subdivided into three series and seven stages, in ascending order, Lower(Tremadocian, Floian), Middle(Dapingian, Darriwilian) and Upper series(Sandbian, Katian,Hirnantian). Three of the seven 'Golden Spikes' defining the bases of the Ordovician stages, which were established in 1997–2007, are located in China. As a regionally applied chronostratigraphy, the Ordovician System was subdivided in China into Lower(Xinchangian, Yiyangian), Middle(Dapingian, Darriwilian) and Upper series(Neichiashanian, Chientangkiangian,Hirnantian). This scheme agrees largely with the standard international classification, which can actually be directly applied to China, except for some special circumstances where the Neichiashanian and Chientangkiangian stages of the Upper Ordovician are used. Based on the new studies in recent years and distinctions and differences recognized in the development of the Ordovician System in the constituent terranes of China, a new framework for correlation among the major Chinese palaeoplates or terranes, e.g. South China, North China(including Tarim and Qaidam) and Xizang(Tibet)-western Yunnan, has been established. However, it has been recognized herein that uncertainties still remain on defining the base of the Tremadocian,Dapingian and Katian, and on the correlation between different mega-facies. More specifically, for the Tremadocian, the precise correlation of its base will depend on the better-defined conodont taxonomy, while for the Dapingian and Katian, on the correlation between different mega-facies. It is worthwhile to note that the chemostratigraphic studies of the Ordovician System in China produced the carbonate δ13 C curves for the Darriwilian(Middle Ordovician) and Katian(Upper Ordovician), which show significant differences from the composite global curve. Record of the Ordovician isotopic dating is relatively rare in China, with only three reliable ages from zircons that are all from the upper Katian to Hirnantian of the Upper Ordovician.Abundant bentonite beds in the Upper Ordovician of South China will also provide unique opportunities to advance the isotopic dating and related researches. Studies on the Ordovician magnetostratigraphy need to be significantly enhanced in China, as currently all the available results are restricted to the Lower Ordovician of North China, although they can be correlated with those known from other parts of the world. The analysis of the durational unevenness of the seven stages in the Ordovician supports the possibility to further subdivide the long-durational Tremadocian, Darriwilian and Katian stages, each into two substages. | Yuandong ZHANG Renbin ZHAN Yongyi ZHEN Zhihao WANG Wenwei YUAN Xiang FANG Xuan MA Junpeng ZHANG | 2019 | Science China Earth Sciences2019，62，1： | 6 |
| 6 | Silica shell-assisted synthetic route for mono-disperse persistent nanophosphors with enhanced in vivo recharged near-infrared persistent luminescence显示文摘在红外线附近(NIR ) 坚持光的 nanoparticles 作为在 vivo 成像是有希望的为的没有背景的对比代理人的一个新班出现了。下一个关键障碍是为综合建立一个柔韧、可控制的方法有高光亮度和长坚持的持续时间的 monodisperse nanoparticles。此处,我们报导包含 SiO 2 壳的 coating/etching 获得小 NIR 高度坚持的光 ZnGa 2 O 4:Cr3+,Sn4+(ZGOCS ) nanoparticles。优化 ZGOCS nanoparticles 有 ~ 的优秀尺寸分布没有任何凝块和 NIR 的 15 nm 被 13.5 的一个因素提高的坚持的光,由于在在退火以后阻止 nanoparticle 凝块的 SiO 2 壳的关键角色。ZGOCS nanoparticles 有比以前报导的 ZnGa 2 是的 O 4:Cr3+(ZGC-1 ) nanoparticles 一根 NIR 坚持光的探针为在 vivo bioimaging。而且,从 ZGOCS nanoparticles 的坚持光的信号能被一根白 lightemitting 二极管反复与外部刺激在 situ 再装;因此, nanoparticles 对合适在 vivo 成像应用长期。我们的学习为与好 biocompatibility 制作新奇高效的光 nanoparticles 建议改进策略。 | Rui Zou Junjian Huang Junpeng Shi Lin Huang Xuejie Zhang Ka-Leung Wong Hongwu Zhang Dayong Jin Jing Wang Qiang Su | 2017 | Nano Research2017，10，6： | 5 |
| 7 | Modulation of nitrate-induced phosphate response by the MYB transcription factor RLI1/HINGE1 in the nucleus显示文摘The coordinated utilization of nitrogen(N)and phosphorus(P)is vital for plants to maintain nutrient balance and achieve optimal growth.Previously,we revealed a mechanism by which nitrate induces genes for phosphate utilization;this mechanism depends on NRT1.1B-facilitated degradation of cytoplasmic SPX4,which in turn promotes cytoplasmic-nuclear shuttling of PHR2,the central transcription factor of phosphate signaling,and triggers the nitrate-induced phosphate response(NIPR)and N-P coordinated utilization in rice.In this study,we unveiled a fine-tuning mechanism of NIPR in the nucleus regulated by Highly Induced by Nitrate Gene 1(HINGE1,also known as RLI1),a MYB-transcription factor closely related to PHR2.RLI1/HINGE1,which is transcriptionally activated by PHR2 under nitrate induction,can directly activate the expression of phosphate starvation-induced genes.More importantly,RLI1/HINGE1 competes with PHR2 for binding to its repressor proteins in the nucleus(SPX proteins),and consequently releases PHR2 to further enhance phosphate response.Therefore,RLI1/HINGE1 amplifies the phosphate response in the nucleus downstream of the cytoplasmic SPX4-PHR2 cascade,thereby enabling fine-tuning of N-P balance when nitrate supply is sufficient. | Zhihua Zhang Zhao Li Wei Wang Zhimin Jiang Liping Guo Xiaohan Wang Yangwen Qian Xiahe Huang Yongqiang Liu Xiujie Liu Yahong Liu Aifu Li Yu Yan Junpeng Xie Shouyun Cao Stanislav Kopriva Legong Li Fanjiang Kong Baohui Liu Yingchun Wang Bin Hu Chengcai Chu | 2021 | Molecular Plant2021，14，3： | 4 |
| 8 | Specific Recognition of Breast Cancer Cells In Vitro Using Near Infrared-Emitting Long-Persistence Luminescent Zn_3Ga_2Ge_2O_(10):Cr^(3+)Nanoprobes显示文摘In this paper, near-infrared emitting long-persistence luminescent Zn3Ga2Ge2O10:Cr3?(ZGG) nanoparticles with diameters of 30–100 nm and bright luminescence were prepared by a sol–gel synthesis method. After the surface amination, the nanoparticles were further bioconjugated with breast cancer-specific monoclonal antibody(anti-Ep CAM) to form ZGG-Ep CAM nanoprobes which can specifically target breast cancer cell lines(MCF7) in vitro. The results of in vitro images show that the luminescence signals from the cells treated with ZGG-Ep CAM nanoprobes are stronger than those from cells treated with ZGG-unconjugated antibody, indicating that the prepared ZGG-Ep CAM nanoprobes possessed excellent specific recognition capability. Furthermore, due to their long afterglow properties, the imaging could persist more than 1 h. Therefore, these nanoprobes could not only provide a high specificity detection method for cancer cells but also realize the long-time monitoring. Developed near-infrared emitting long-persistence luminescent nanoprobes will be expected to find new perspectives for cell therapy research and diagnosis applications. | Jinlei Li Junpeng Shi Jiangshan Shen Huizi Man Mingxi Wang Hongwu Zhang | 2015 | Nano-Micro Letters2015，7，2： | 4 |
| 9 | Variation and heritability of morphological and physiological traits among Leymus chinensis genotypes under different environmental conditions显示文摘Intraspecific trait variation and heritability in different environmental conditions not only suggest a potential for an evolutionary response but also have important ecological consequences at the population, community, and ecosystem levels. However, the contribution of quantitative trait variation within a grassland species to evolutionary responses or ecological consequences is seldom documented. Leymus chinensis is an important dominant species in semi-arid grasslands of China, which has seriously suffered from drought and high temperature stresses in recent decades. In the present study, we measured variation and heritability of 10 quantitative traits, namely the number of tillers, maximum shoot height, number of rhizomes, maximum rhizome length, rhizome mass, aboveground mass, root mass, maximum net photosynthetic rate(Pmax), specific leaf area(SLA), and leaf length to leaf width ratio(LL/LW), for 10 genotypes of L. chinensis under one non-stress(Ck) condition and three environmental stress conditions(i.e., drought(Dr), high temperature(Ht), and both drought and high temperature(DrHt)). Result indicated that(1) the interaction of genotype and environmental condition(G×E) was significant for 6 traits but not significant for the other 4 traits as shown by two-way analysis of variance(ANOVA), suggesting that different selection forces were placed for different traits on the factors dominating phenotypic responses to different environmental conditions. Moreover, these significant G×E effects on traits indicated significantly different phenotypic adaptive responses among L. chinensis genotypes to different environmental conditions. Additionally, individuals could be grouped according to environmental condition rather than genotype as shown by canonical discriminant analysis, indicating that environmental condition played a more important role in affecting phenotypic variation than genotype;(2) by one-way ANOVA, significant differences among L. chinensis genotypes were found in all 10 traits under Ck and Dr conditions, in 8 traits under Dr Ht condition and only in 4 traits under Ht condition; and(3) all 10 traits showed relatively low or non-measurable broad-sense heritability(H_2) under stress conditions. However, the lowest H_2 value for most traits did not occur under DrHt condition, which supported the hypothesis of 'unfavorable conditions have unpredictable effects' rather than 'unfavorable conditions decrease heritability'. Results from our experiment might aid to improve predictions on the potential impacts of climate changes on L. chinensis and eventually species conservation and ecosystem restoration. | YANG Xue LI Junpeng ZHAO Tingting MO Lidong ZHANG Jianli REN Huiqin ZHAO Nianxi GAO Yubao | 2019 | Journal of Arid Land2019，11，1： | 4 |
| 10 | Molecular analysis of bacterial community in the tap water with different water ages of a drinking water distribution system显示文摘在喝的水分发系统(DWDS ) 的细菌的社区被多重环境因素调整,许多哪个作为水年龄的功能变化了。在这研究,四水与不同的水年龄取样,包括完成的水( FW , 0 d )并且自来水( TW )[ TW1 ( 1 d ), TW2 ( 2 d )和 TW3 ( 3 d )],与实际 DWDS 的 mains 一起被收集,并且细菌的社区被高产量的定序的技术调查。结果显示剩余氯随水年龄的增加衰退了,由溶解有机物,全部的细菌计数和细菌的差异(香农) 的增加伴随了。为细菌的社区作文,尽管 Proteobacteria 门(84.12%-97.6%) 和 Alphaproteobacteria 班(67.42%-93.09%) 保留了,统治,一明显常规在目水平被观察。详细,,大多数另外的剩余订单从开始与不同的度增加了到 DWDS 的目的相对许多一向下,趋势特别地以 Rhizobiales 被观察,被推断氯抵抗并且对禁止有用的人,尖叫腐蚀。而且,一些 OTU 被发现与拥有致病力和氯抵抗的能力的种类密切相关,除氯以外的代理人的使用或能与氯协作地行动的代理人应该为喝水消毒被开发,这因此被推荐。这份报纸沿着 DWDS 的 mains 揭示了细菌的社区变化,结果对在 DWDS 理解细菌的生态学有用。 | Feng Wang Weiying Li Yue Li Junpeng Zhang Jiping Chen Wei Zhang Xuan Wu | 2018 | Frontiers of Environmental Science & Engineering2018，12，3： | 4 |
| 11 | Polymer-derived SiBCN ceramic pressure sensor with excellent sensing performance显示文摘Pressure measurement with excellent stability and long time durability is highly desired,especially at high temperature and harsh environments.A polymer-derived silicoboron carbonitride(SiBCN)ceramic pressure sensor with excellent stability,accuracy,and repeatability is designed based on the giant piezoresistivity of SiBCN ceramics.The SiBCN ceramic sensor was packaged in a stainless steel case and tested using half Wheatstone bridge with the uniaxial pressure up to 10 MPa.The SiBCN ceramic showed a remarkable piezoresistive effect with the gauge factor(K)as high as 5500.The output voltage of packed SiBCN ceramic sensor changes monotonically and smoothly versus external pressure.The as received SiBCN pressure sensor possesses features of short response time,excellent repeatability,stability,sensitivity,and accuracy.Taking the excellent high temperature thermo-mechanical properties of polymer-derived SiBCN ceramics(e.g.,high temperature stability,oxidation/corrosion resistance)into account,SiBCN ceramic sensor has significant potential for pressure measurement at high temperature and harsh environments. | Gang SHAO Junpeng JIANG Mingjie JIANG Jie SU Wen LIU Hailong WANG Hongliang XU Hongxia LU Rui ZHANG | 2020 | Journal of Advanced Ceramics2020，9，3： | 3 |
| 12 | Antenna selection in MIMO radar with collocated antennas显示文摘An antenna adjustment strategy is developed for the target tracking problem in the collocated multiple-input multipleoutput(MIMO)radar.The basic technique of this strategy is to optimally allocate antennas by the prior information in the tracking recursive period,with the objective of enhancing the worst-case estimate precision of multiple targets.On account of the posterior Cramer-Rao lower bound(PCRLB)offering a quantitative measure for target tracking accuracy,the PCRLB of joint direction-of-arrival(DOA)and Doppler is derived and utilized as the optimization criterion.It is shown that the dynamic antenna selection problem is NP-hard,and an efficient technique which combines convex relaxation with local search is put forward as the solution.Simulation results demonstrate the outperformance of the proposed strategy to the fixed antenna configuration and heuristic search algorithm.Moreover,it is able to offer close-to performance of the exhaustive search method. | ZHANG Haowei XIE Junwei SHI Junpeng ZHANG Zhaojian | 2019 | Journal of Systems Engineering and Electronics2019，30，6： | 3 |
| 13 | Composition-dependent ultra-high photoconductivity in ternary CdSxSe1-x nanobelts as measured by optical pump-terahertz probe spectroscopy显示文摘我们采用光泵兆兆赫探查光谱学在第三的 CdS x Se1x nanobelts 调查作文依赖者光导增益。CdS nanobelts 的观察搬运人动力学第三的 CdS x Se1x nanobelts 比那些显示许多更短的一生。这作为潜在地以切换的速度交换设备直到 46.7 GHz 的 ultrafast 显示 CdS nanobelts 的实现。令人惊讶地,第三的 CdS x Se1x nanobelts 被发现比二进制 CdS 和 CdSe 展出高得多的光导增益。这在第三的混合物被归因于更高的 photocarrier 密度。另外,在样品的 Se 的存在导致了突出的象 CdSe 一样横向光(到) 声子模式由于电子声子相互作用。这个模式的力量在 photoexcitation 之上显示出大落下,但是与时间逐渐地恢复。这些结果证明第三的 nanostructures 的生长能被利用在 nanostructures 减轻高表面缺点密度并且改进他们的光导增益。 | Hongwei Liu Junpeng Lu Minrui Zheng Sing Hai Tang Xinhai Zhang Chorng Haur Sow | 2013 | Nano Research2013，6，11： | 3 |
| 14 | In vitro expansion of human sperm through nuclear transfer显示文摘Dear Editor,Mammalian haploid embryonic stem cells(haESCs)represent an ideal tool for genetic analysis due to the presence of only one set of genetic materials.HaESCs fall into two readily distinguishable groups based on their genome origins:parthenogenetic haESCs(PG-haESCs)that are derived from oocyte-originated parthenogenetic embryos and androgenetic haESCs(AG-haESCs)that are produced through sperm nuclear transfer.Both PG-and AGhaESCs are feasible for delineating genome function at cellular level in vitro.Importantly,AG-haESCs can be used as a sperm replacement and applied to deciphering gene function at organismal level when combined with CRISPR-Cas9 technology.1 However,while PG-haESCs have been generated from both rodent and primates,2-5 AG-haESCs can only be obtained in rodent to date. | Xiaoyu Merlin Zhang Keliang Wu Yuxuan Zheng Han Zhao Junpeng Gao Zhenzhen Hou Meiling Zhang Jiaoyang Liao Jingye Zhang Yuan Gao Yuanyuan Li Lin Li Fuchou Tang Zi-Jiang Chen Jinsong Li | 2020 | Cell Research2020，30，4： | 3 |
| 15 | A New Type of Rare Metal Deposit:The Yushishan Leptynite-Type Nb-Ta Deposit in Eastern Altun,Gansu Province,NW China显示文摘The Yusishan deposit is a newly found leptynite-type niobium and tantalum(Nb-Ta)deposit,which is located in the Eastern Altun of Gansu Province.The leptynite of the Neoproterozoic Aoyougou Formation occurs more than 10 km long and 3 km wide.In this paper,we carried out a detailed study of the leptynite and related mineralization.The U-Pb dating of zircon reveals ages of 831±5 Ma and 790±5 Ma for the unmineralized leptynite and 491±4 Ma and 455±4 Ma for the mineralized leptynite.The petrographic and geochemical evidence identified the protolith of the leptynite as alkalin e volcanic rocks that erupted during Neoproterozoic at ca.830 Ma.At ca.490 Ma,the tectono-magmatic and metamorphic event triggered remobilization and enrichment of Nb-Ta as well as other critical metals(REE,Zr,Hf etc)with the formation of industry orebodies in the leptynite strata.The Yushishan deposit presents many similarities with the alkaline volcanic rocks related rare metal deposits in the south Qinling of China and the Brochman,Toogni and Southern Peak Range deposits in Australian.We therefore propose that the Yushishan deposit is a new type(sub-type)of Nb-Ta deposit and termed as leptynite type that represents the metamorphic counterpart of the alkaline volcanic rocks related rare metal deposits. | JIANG SHAOYONG LIU TAO ZHANG HAOXIANG CAO SHUYUN ZHENG RUOHONG LI TONGGUO YU JUNPENG WU YIBU | 2022 | Acta Geologica Sinica(English Edition)2022，96，5： | 2 |
| 16 | Cloning and expression analysis of the nuclear factor erythroid 2-related factor 2(Nrf2)gene of grass carp(Ctenopharyngodon idellus)and the dietary effect of Eucommia ulmoides on gene expression显示文摘Nuclear factor erythroid 2-related factor 2(Nrf2)is an important transcription factor in the regulation of redox homeostasis,which plays a vital role in metabolism,the cell cycle,and cell protection.In this study,the complete cDNA sequence of Nrf2 gene of grass carp was obtained by rapid amplification of cDNA ends-polymerase chain reaction(RACE-PCR),and the characteristics of Nrf2 proteins predicted from gene sequencing were analyzed by bioinformatics methods.Tissue differential expression patterns were also detected by Real-time Fluorescence quantitative PCR(qRT-PCR).Then,Eucommia ulmoides(EU),a traditional Chinese medicine,was added into diet with an inclusion of 2%to feed grass carp for 3 months to investigate the effects on the expression of Nrf2 gene in tissues.The results showed that the full-length of Nrf2 gene of grass carp is 2760 bp,encoding 593 amino acids,and the predicted Nrf2 protein is a hydrophilic and non-secretory protein.Grass carp Nrf2 gene showed higher expression in kidney,gill,liver,spleen,and blood tissues than in other tissues.In the feeding trial,dietary EU significantly promoted the Nrf2 mRNA expression in kidney,gill,and liver tissues after three months feeding.The results suggest that Nrf2 plays an important role in the anti-oxidative capacity of grass carp and its expression is enhanced by dietary EU. | Junpeng Wang Jun Xie Zhihan Tu Jing Wei Wenqian Pan Jing Hu Yi Zhang Xiangjun Leng Xiaoqin Li | 2018 | Aquaculture and Fisheries2018，3，5： | 2 |
| 17 | Mechanical,corrosion and magnetic behavior of a CoFeMn_(1.2)NiGa_(0.8) high entropy alloy显示文摘In this study,a magnetic high entropy alloy(HEA)of CoFeMn_(1.2)NiGa_(0.8)was designed and prepared by arc melting in order to investigate its mechanical,corrosion and magnetic behavior.The results show that the alloy mainly possesses body-centered cubic(BCC)phase and face-centered cubic(FCC)phase.A high compressive strength of 1450 MPa,a strain of 18.5%and a relatively low yield strength of 303MPa in as-cast condition at room temperature can be achieved in the present alloy.In-situ high-energy X-ray diffraction technique was employed to reveal the deformation mechanism of Co Fe Mn_(1.2)Ni Ga_(0.8)under uniaxial compression and the results show that the competition between BCC phase and FCC phase plays a significant role during the compressive process.The corrosion behavior of Co Fe Mn_(1.2)Ni Ga_(0.8)was investigated in 3.5 wt%Na Cl solution and it turned out that the alloy possessed good corrosion resistance.At last,the magnetic behavior of the Co Fe Mn_(1.2)Ni Ga_(0.8)alloy was studied and it can present a high saturation magnetization of 94.5 emu/g and a coercivity of 26.4 Oe at 4 K.This work indicates that the present Co Fe Mn_(1.2)Ni Ga_(0.8)HEA has promising applications as future magnetic functional materials. | Xiaoming Sun Lingzhong Du Hao Lan Jingyi Cui Liang Wang Runguang Li Zhiang Liu Junpeng Liu Weigang Zhang | 2021 | Journal of Materials Science & Technology2021，，14： | 2 |
| 18 | Geochemistry and Geochronology of Diorite in Pengshan Area of Jiangxi Province:Implications for Magmatic Source and Tectonic Evolution of Jiangnan Orogenic Belt显示文摘Magmatic activities associated with tectonic events play a significant role in understanding the evolution of an orogenic belt.The Jiangnan orogenic belt has been regarded as the collisional suture zone between the Yangtze Block and the Cathaysia Block.Although the magmatic activities during the period of intra-plate extension after the collision have been well studied in recent years,some remaining issues,including source nature and geodynamic mechanism,need to be further addressed.In this paper,based on a detailed field geological,petrological,geochemical and geochronological study,we focus our work on diorites in the Pengshan area located at the northwestern margin of the Jiangnan orogenic belt.The mineral assemblages are mainly composed of plagioclase(55 vol.%-65 vol.%)and hornblende(35 vol.%-45 vol.%).One diorite sample yields zircon^(206)Pb/^(238)U mean age of 768±8 Ma(MSWD=0.29).The diorites have enriched large ion lithophile elements(Ba,K and Rb)and incompatible elements(Th and U),and are depleted in high field-strength elements including Ta,Ti and Nb.Diorites in this study have relatively high MgO content(6.56 wt.%-7.58 wt.%,7.07 wt.%on average)and Mg number values(65-67,65.8 on average).The diorites are metaluminous,high K calc-alkaline series rocks with high contents of K_2O(1.59 wt.%-1.97 wt.%)and total alkali(Na_2O+K_2O=5.56 wt.%-6.05 wt.%).The Nd/Th ratio(4.34-5.27)is higher than that of crust-derived rocks and lower than mantle-derived rocks.The Rb/Sr ratio(0.19-0.22)is slightly lower than crust,but significantly higher than upper mantle.Based on the above geochemical and geochronological analyses,we suggest that the diorites in the Pengshan area were mainly derived from crustal materials with a small amount of mantleoriginated materials involved,and possibly produced from an extensional tectonic setting after the collision between the Yangtze Block and Cathaysia Block. | Hongfeng Shi Junpeng Wang Yuan Yao Jing Zhang Song Jin Yingxin Zhu Kang Jiang Xiaolong Tian Deng Xiao Wenbin Ning | 2020 | Journal of Earth Science2020，31，1： | 2 |
| 19 | Nb_(2)CT_(x) MXene: High capacity and ultra-long cycle capability for lithium-ion battery by regulation of functional groups显示文摘MXenes are well known for their potential application in supercapacitors due to their high-rate intercalation pseudocapacitance and long cyclability.However,the reported low capacity of pristine MXenes hinders their practical application in lithium-ion batteries.In this work,a robust strategy is developed to control the functional groups of Nb_2 CT_x MXene.The capacity of pristine Nb_2 CT_x MXene can be significantly increased by Li~+ intercalation and surface modification.The specific capacity of the treated Nb_2 CT_x is up to 448 mAh g^(-1) at 0.05 A g^(-1),and at a large current density of 2 A g^(-1) remains a high reversible capacity retention rate of 75% after an ultra-long cycle of 2000 cycles.These values exceed most of the reported pristine MXenes(including the most studied Ti_3 C_2 T_x) and carbon-based materials.It demonstrates that this strategy has great help to improve the electrochemical performance of pristine MXene,and the results enhance the promise of MXenes in the application of lithium-ion batteries. | Jiabao Zhao Jing Wen Junpeng Xiao Xinzhi Ma Jiahui Gao Lina Bai Hong Gao Xitian Zhang Zhiguo Zhang | 2021 | Journal of Energy Chemistry2021，30，2： | 2 |
| 20 | Synthesis, characterization and properties of polyimides derived from a symmetrical diamine containing bis-benzimidazole rings显示文摘 | Junpeng Liu Qinghua Zhang Qingming Xia Jie Dong Qian Xu | 2012 | Polymer Degradation and Stability2012，，6： | 1 |
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