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| 1 | Enhancement of room-temperature magnetoresistance in La_(0.5)Sm_(0.2)Sr_(0.3)MnO_3/(Ag_2O)_(x/2)显示文摘La0.5Sm0.2Sr0.3MnO3/(Ag2O)x/2 (x = 0.00, 0.04, 0.08, 0.25, 0.30) samples were prepared by the solid-state reaction method, and their transport behaviors, transport mechanism, and magnetoresistance effect were studied through the measurement and fitting of ρ-T curves. The results show that the element Ag takes part in reaction when the doping amount is small. Ag is mainly distributed at the grain boundary of the host material and is in metallic state when the doping amount is relatively large; then the system becomes a two-phase composite. A small amount of Ag doping can apparently increase grain-boundary magnetoresistance induced by the spin-dependent scattering. The resistivity of the sample doped with 30 mol% Ag is one order of magnitude smaller than that of low-doped samples, and its magnetoresistance in the magnetic field of 0.5 T and at 300 K is strengthened apparently reaching 9.4%, which is connected not only with the improvement of the grain-boundary structure of the host material but also with the decrease of material resistivity. | PENG Zhensheng WANG Guiying TANG Yonggang LIU Peng NIU Xiaofei | 2010 | Rare Metals2010,29,1: | 10 |
| 2 | Enhancement of room-temperature magnetoresistance in La_(0.6)Dy_(0.1)Sr_(0.3)MnO_3/Ag_x显示文摘The samples of La0.6Dy0.1Sr0.3MnO3/(Ag2O)x/2(x = 0.00, 0.02, 0.04, 0.06, 0.08, 0.10, 0.20, 0.25, and 0.30) were prepared by using the solid-state reaction method.Their magnetic property, transport behavior, transport mechanism and magnetoresistance effect were studied through the measurements of magnetization-temperature(M-T) curves, ρ-T curves and the fitting of ρ-T curves.The results indicated that Ag could take part in the reaction when the doping amount is small.However, when the doping amount is comparatively large, Ag as metallic state mainly deposits on the grain boundary of La0.6Dy0.1Sr0.3MnO3, and then the system forms a two-phase composite.When the Ag doping amount is 30% mole ratio, the resistivity of the sample is one order of magnitude smaller than that of low doped samples, and its peak of magnetoresistance at 292 K and in the magnetic field of 0.2 T strengthens apparently and reaches 16.3%, which is over 7 times as large as 2.2% of La0.6Dy0.1Sr0.3MnO3.The two-phase composite system of magnetoresistance based on perovskite manganite consists of two parts:intrinsic magnetoresistance and extrinsic magnetoresistance.However, extrinsic magnetoresistance comes from spin-dependent scattering(SDS) and spin-polarized tunneling(SPT).Magnetoresistance near TC increases due to the contribution of intrinsic magnetoresistance and extrinsic magnetoresistance formed by SDS, and magnetoresistance at low temperature is extrinsic magnetoresistance formed by SPT. | SONG Qixiang NIU Xiaofei WANG Guiying TANG Yonggang CAI Zhirang PENG Zhensheng | 2010 | Rare Metals2010,29,2: | 10 |
| 3 | Hierarchical nanostructured composite cathode with carbon nanotubes as conductive scaffold for lithium-sulfur batteries显示文摘Carbon nanotubes (CNTs) are excellent scaffolds for advanced electrode materials, resulting from their intrinsic sp2 carbon hybridization, interconnected electron pathway, large aspect ratio, hierarchical porous structures, and low cost at a large-scale production. How to make full utilization of the mass produced CNTs as building blocks for nanocomposite electrodes is not well understood yet. Herein, a composite cathode containing commercial agglomerated multi-walled CNTs and S for Li-S battery was fabricated by a facile melt-diffusion strategy. The hierarchical CNT@S coaxial nanocables exhibited a discharging capacity of 1020 and 740 mAh g-1 at 0.5 and 2.0 C, respectively. A rapid capacity decay of 0.7% per cycle at the initial 10 cycles and a slow decay rate of 0.14% per cycle for the later 140 cycles were detected. Such hierarchical agglomerated CNT@S cathodes show advantages in easy fabrication, environmentally benign, low cost, excellent scalability, and good Li ion storage performance, which are extraordinary composites for high performance Li-S battery. | Xiaofei Liu Qiang Zhang Jiaqi Huang Shumao Zhang Hongjie Peng Fei Wei | 2013 | Journal of Energy Chemistry2013,22,2: | 6 |
| 4 | High-quality Arabidopsis thaliana Genome Assembly with Nanopore and HiFi Long Reads显示文摘Arabidopsis thaliana is an important and long-established model species for plant molecular biology,genetics,epigenetics,and genomics.However,the latest version of reference genome still contains a significant number of missing segments.Here,we reported a high-quality and almost complete Col-0 genome assembly with two gaps(named Col-XJTU)by combining the Oxford Nanopore Technologies ultra-long reads,Pacific Biosciences high-fidelity long reads,and Hi-C data.The total genome assembly size is 133,725,193 bp,introducing 14.6 Mb of novel sequences compared to the TAIR10.1 reference genome.All five chromosomes of the Col-XJTU assembly are highly accurate with consensus quality(QV)scores>60(ranging from 62 to 68),which are higher than those of the TAIR10.1 reference(ranging from 45 to 52).We completely resolved chromosome(Chr)3 and Chr5 in a telomere-to-telomere manner.Chr4 was completely resolved except the nucleolar organizing regions,which comprise long repetitive DNA fragments.The Chrl centromere(CEN1),reportedly around 9 Mb in length,is particularly challenging to assemble due to the presence of tens of thousands of CEN180 satellite repeats.Using the cutting-edge sequencing data and novel computational approaches,we assembled a 3.8-Mb-long CEN1 and a 3.5-Mb-long CEN2.We also investigated the structure and epigenetics of centromeres.Four clusters of CEN180 monomers were detected,and the centromere-specific histone H3-like protein(CENH3)exhibited a strong preference for CEN180 Cluster 3.Moreover,we observed hypomethylation patterns in CENH3-enriched regions.We believe that this high-quality genome assembly,Col-XJTU,would serve as a valuable reference to better understand the global pattern of centromeric polymorphisms,as well as the genetic and epigenetic features in plants. | Bo Wang Xiaofei Yang Yanyan Jia Yu Xu Peng Jia Ningxin Dang Songbo Wang Tun Xu Xixi Zhao Shenghan Gao Quanbin Dong Kai Ye | 2022 | Genomics, Proteomics & Bioinformatics2022,20,1: | 6 |
| 5 | Single event upset rate modeling for ultra-deep submicron complementary metal-oxide-semiconductor devices显示文摘Based on the integral method of single event upset(SEU) rate and an improved charge collection model for ultra-deep submicron complementary metal-oxide-semiconductor(CMOS) devices, three methods of SEU rate calculation are verified and compared. The results show that the integral method and the figure of merit(FOM) methods are basically consistent at the ultra-deep submicron level. By proving the validity of the carrier collection model considering charge sharing, the applicability of two FOM methods is verified, and the trends of single-bit and multiple-bit upset rates for ultra-deep submicron CMOS are analyzed. | Liang HE Hua CHEN Peng SUN Xiaofei JIA Chongguang DAI Jing LIU Long SHAO Zhaoqing LIU | 2016 | Science China(Information Sciences)2016,59,4: | 5 |
| 6 | Glucocorticoid receptor modulates myeloid-derived suppressor cell function via mitochondrial metabolism in immune thrombocytopenia显示文摘Myeloid-derived suppressor cells(MDSCs)are a heterogeneous population of immature cells and natural inhibitors of adaptive immunity.Intracellular metabolic changes in MDSCs exert a direct immunological influence on their suppressive activity.Our previous study demonstrated that high-dose dexamethasone(HD-DXM)corrected the functional impairment of MDSCs in immune thrombocytopenia(ITP);however,the MDSC population was not restored in nonresponders,and the mechanism remained unclear.In this study,altered mitochondrial physiology and reduced mitochondrial gene transcription were detected in MDSCs from HD-DXM nonresponders,accompanied by decreased levels of carnitine palmitoyltransferase-1(CPT-1),a rate-limiting enzyme in fatty acid oxidation(FAO).Blockade of FAO with a CPT-1 inhibitor abolished the immunosuppressive function of MDSCs in HD-DXM responders.We also report that MDSCs from ITP patients had lower expression of the glucocorticoid receptor(GR),which can translocate into mitochondria to regulate the transcription of mitochondrial DNA(mtDNA)as well as the level of oxidative phosphorylation.It was confirmed that the expression of CPT-1 and mtDNA-encoded genes was downregulated in GR-siRNA-treated murine MDSCs.Finally,by establishing murine models of active and passive ITP via adoptive transfer of DXM-modulated MDSCs,we confirmed that GR-silenced MDSCs failed to alleviate thrombocytopenia in mice with ITP.In conclusion,our study indicated that impaired aerobic metabolism in MDSCs participates in the pathogenesis of glucocorticoid resistance in ITP and that intact control of MDSC metabolism by GR contributes to the homeostatic regulation of immunosuppressive cell function. | Yu Hou Jie Xie Shuwen Wang Daqi Li Lingjun Wang Haoyi Wang Xiaofei Ni Shaoqiu Leng Guosheng Li Ming Hou Jun Peng | 2022 | Cellular & Molecular Immunology2022,19,7: | 4 |
| 7 | Targeting orthotopic gliomas with renal-clearable luminescent gold nanoparticles显示文摘在 nanomedicine 的主要临床的翻译挑战是在主要机关与举起和非可能减解的 nanoparticles (NP ) 的长期的保留联系的毒性的潜力。经历肾的清理的无机的 NP 的发展能潜在地解决这颗重要 biosafety 担心。然而,能被肾排泄的无机的 NP 是否仍然保持能够与差的渗透指向肿瘤,仍然保持不清楚。Glioblastoma multiforme,最恶意的 orthotopic 大脑肿瘤,因为血大脑障碍和反应 microglia 和 macroglia 的柔韧的血肿瘤障碍,在肿瘤微型环境为 NP 交货提出唯一的挑战。此处,我们使用了 orthotopic 调查在直径的 3 nm 的谷胱甘肽涂的金 nanoparticles (AuNPs ) 的被动指向的鼠科的 glioma 模型经历没能经历肾的清理的肾的清理和 18-nm AuNPs。显著地,我们报导 3-nm AuNPs 能与更高的效率指向 intracranial 肿瘤纸巾(2.3ver 在 1.0 妈骑车的 100 | Chuanqi Peng Xiaofei Gao Jing Xu Bujie Du Xuhui Ning Shaoheng Tang Robert M. Bachoo Mengxiao Yu Woo-Ping Ge Jie Zheng | 2017 | Nano Research2017,10,4: | 3 |
| 8 | Low intensity near-infrared light promotes bone regeneration via circadian clock protein cryptochrome 1显示文摘Bone regeneration remains a great clinical challenge. Low intensity near-infrared(NIR) light showed strong potential to promote tissue regeneration, offering a promising strategy for bone defect regeneration. However, the effect and underlying mechanism of NIR on bone regeneration remain unclear. We demonstrated that bone regeneration in the rat skull defect model was significantly accelerated with low-intensity NIR stimulation. In vitro studies showed that NIR stimulation could promote the osteoblast differentiation in bone mesenchymal stem cells(BMSCs) and MC3T3-E1 cells, which was associated with increased ubiquitination of the core circadian clock protein Cryptochrome 1(CRY1) in the nucleus. We found that the reduction of CRY1 induced by NIR light activated the bone morphogenetic protein(BMP) signaling pathways, promoting SMAD1/5/9 phosphorylation and increasing the expression levels of Runx2 and Osterix. NIR light treatment may act through sodium voltage-gated channel Scn4a, which may be a potential responder of NIR light to accelerate bone regeneration. Together, these findings suggest that low-intensity NIR light may promote in situ bone regeneration in a CRY1-dependent manner, providing a novel, efficient and non-invasive strategy to promote bone regeneration for clinical bone defects. | Jinfeng Peng Jiajia Zhao Qingming Tang Jinyu Wang Wencheng Song Xiaofeng Lu Xiaofei Huang Guangjin Chen Wenhao Zheng Luoying Zhang Yunyun Han Chunze Yan Qian Wan Lili Chen | 2022 | International Journal of Oral Science2022,14,4: | 2 |
| 9 | Effects of weeding and fertilization on soil biology and biochemical processes and tree growth in a mixed stand of Dalbergia odorifera and Santalum album显示文摘In southern China,the eucalyptus plantation industry has been severely restricted by government policy over concerns on negative environmental impacts.In its place,large-scale plantations of high-value tropical tree species such as nitrogen-fixing Dalbergia odorifera and hemiparasite Santalum album have been widely cultivated including in mixed-species plantations.However,despite their poor growth,little information is available on suitable silvicultural practices of these plantations.Therefore,we subjected an 8-year-old mixed stand of D.odorifera and S.album to weeding,fertilization,weeding+fertilization,or no(CK)treatments and measured soil microbial biomass,respiration,nutrients,nitrogen mineralization and leaching and tree growth and litter production.Weeding and fertilization decreased microbial biomass but increased soil respiration,inhibited mineralization,had not effect on leaching of soil nitrogen,and improved the nutrient status of plantation soil.All practices improved the growth of D.odorifera.In the mixed plantation,fertilization increased litter production and nutrient content,but weeding and weeding+fertilization decreased growth of S.album and litter production in mixed plantation because weeding decreased the number of S.album haustoria in underground plant roots.In conclusion,fertilization is recommended;however,weeding-related practices are inappropriate for D.odorifera and S.album mixed plantations.These conclusions have important implications for managing other parasite or mixed-species plantations. | Peng Zhang Xiaofei Li Shiyu Xue Zhiyi Cui Daping Xu Zengjiang Yang | 2021 | Journal of Forestry Research2021,32,6: | 2 |
| 10 | 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 |
| 11 | The composite rods of MnO and multi-walled carbon nanotubes as anode materials for lithium ion batteries 显示文摘 | Sun Xiaofei Xu Youlong Ding Peng | 2013 | Journal of Power Sources2013,244,: | 1 |
| 12 | Anomaly secure detection methods by analyzing dynamic characteristics of the network traffic in cloud communications显示文摘 | Wei Xiong Hanping Hu Naixue Xiong Laurence T. Yang Wen-Chih Peng Xiaofei Wang Yanzhen Qu | 2013 | Information Sciences2013,,: | 1 |
| 13 | Controllable magnetic properties of cobalt ferrite particles derived from layered double hydroxide precursors显示文摘Cobalt ferrite Co x Ni 1-x Fe 2 O 4 (x = 0, 0.5, 1) particles with controllable magnetic properties have been pre- pared by calcination of co-substituted NiFe 2+ Fe 3+ -layered double hydroxide (NiFe 2+ Fe 3+ -LDH) precursors prepared via a scalable method involving separate nucleation and aging steps (SNAS). Their structural and magnetic characteristics were investigated by powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and vibrating sample magnetometry (VSM). Measurements of magnetic properties show that the saturation magnetization (M s ) and coercivity (H c ) of the calcined products increased with increasing cobalt content. The LDH precursor-based product obtained by calcination of a mixture of CoFe 2+ Fe 3+ -LDH and NiFe 2+ Fe 3+ -LDH powders with a Co/Ni molar ratio of 1:1, exhibits a moderate value of M s and an increased value of H c compared to the corresponding values for an Ni 0.5 Co 0.5 Fe 2 O 4 material prepared by calcination of a Co 0.5 Ni 0.5 Fe 2+ Fe 3+ -LDH precursor, and a physical mixture of CoFe 2 O 4 and NiFe 2 O 4 with a Co/Ni molar ratio of 1:1. These results may provide a way to regulate magnetic anisotropy of ferrite spinels by varying the composition of the LDH precursors. | Yonglian Qi Yingsheng Yang Xiaofei Zhao Xilan Liu Peng Wu Fazhi Zhang Sailong Xu | 2010 | Particuology2010,8,3: | 1 |
| 14 | lnfluence factors on suspension stability of nanofluids显示文摘 | Peng Xiaofei Yu xiaoli Xia Lifeng | 2007 | Journal of Zhejiang University: Engineering Science2007,41,4: | 1 |
| 15 | Effect of Ni doping on the microstructure and magnetic properties of FePt films显示文摘FePtNi films with different Ni contents were deposited on glass substrates by RF magnetron sputtering, and the L10-FePtNi films were obtained after the asdeposited samples were subjected to vacuum annealing. The magnetic properties, structures, and orientations of the L10-FePt films with Ni doping were studied. The results show that with increasing Ni content, the (001) peak position of the FePtNi films shifts to a higher angle in comparison with FePt, which suggests that there is partial Ni substitution in the L10 lattice. The perpendicular coercivity decreases from 661 to 142 kA/m and magnetization decreases from 512 to 433 kA/m with increasing Ni content. In comparison with FePt films, the FePtNi films can effectively reduce the Curie temperature, which makes FePtNi films promising media candidates in thermally assisted recording (TAR). | DONG Kaifeng CHENG Xiaomin YAN Junbing CHENG Weiming LI Peng YANG Xiaofei | 2009 | Rare Metals2009,28,3: | 1 |
| 16 | Transport, structural and in- terracial properties of poly (vinyl alcohol)-polysulfone composite nanofiltration membranes显示文摘 | Peng Fubing Huang Xiaofei | 2010 | Joumal''of Mem-brane Science2010,353,: | 1 |
| 17 | Inhibitory ef- fect of mung bean extract and its constituent vitenxin and isovitexin on the formation of advanced glycation endproducts显示文摘 | PENG Xiaofei ZHENG Zongping CHENG K W | 2008 | Food Chemistry2008,106,2: | 1 |
| 18 | Fabrication of Super Ductile Polymeric Blends Using Microcellular Injection Molding显示文摘 | SUN Xiaofei KHARBAS H PENG Jun | 2014 | Manufacturing Letters2014,2,2: | 1 |
| 19 | A Novel Method of Producing Lightweight Microcellular Injection Molded Parts with Improved Ductility and Toughness显示文摘 | SUN Xiaofei KHARBAS H PENG Jun | 2015 | Polymer2015,56,: | 1 |
| 20 | 2.2Ga Subduction-Related Mafic Magmatic Rocks in the Kongling Complex:Evidence for the Assembly of the Columbia Supercontinent显示文摘Objective Petrogenesis of the Paleoproterozoic mafic dikes and their tectonic implications are of great significance to the tectonic evolution of the Yangtze craton as well as the paleoposition of the Yangtze craton relative to the Columbia supercontinent.Till now,intensive studies | LU Shansong QIU Xiaofei JIANG Tuo PENG Lianhong ZHAO Xiaoming WEI Yunxu DUAN Ruichun WU Nianwen | 2017 | Acta Geologica Sinica(English Edition)2017,91,5: | 1 |