|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Vitamin C alleviates aging defects in a stem cell model for Werner syndrome显示文摘沃纳症候群(WS ) 是主要影响从中层导出的纸巾的早衰混乱。我们最近用 WRN 缺乏的人的间充质的干细胞(MSC ) 开发了一个新奇人的 WS 模型。这个模型概括 WS 的许多 phenotypic 特征。基于很多化学药品的一幅屏幕,这里,我们发现维生素 C 在出现在WRN缺乏的 MSC 的早衰为许多特征施加很有效的营救包括细胞生长拘捕,增加了反应的氧种层次, telomere 摩擦,煽动性的因素的过多的分泌物,象原子薄板和 heterochromatin 的组织的破坏一样。而且,维生素 C 在一个老鼠模型在 vivo 恢复 MSC 的生存能力。定序分析的 RNA 显示维生素 C 改变涉及染色质冷凝作用,房间周期规定, DNA 复制,和 DNA 损坏的一系列基因的表示在 WRN 缺乏的 MSC 的修理小径。我们的结果为 WS MSC 作为一个恢复因素识别维生素 C,它保持作为 WS 的处理的一种新奇类型被使用的潜力。 | Ying Li Weizhou Zhang Liang Chang Yan Han Liang Sun Xiaojun Gong Hong Tang Zunpeng Liu Huichao Deng Yanxia Ye Yu Wang Jian Li Jie Qiao Jing Qu Weiqi Zhang Guang-Hui Liu | 2016 | Protein & Cell2016,7,7: | 10 |
| 2 | Extraction of hydrogen chloride by a coupled reaction-solvent extraction process显示文摘A coupled 反应溶剂抽取过程被用来把 HCl 从模仿的蒸馏器浪费移开。各种各样的提炼之物和 diluents 的抽取表演被比较,在各种各样的 diluents 的 N235 (第三级的胺的混合物) 的明显的盐基度是坚定的。最好的结果作为提炼之物用 N235 和 isoamyl 酒精被获得并且稀释分别地。从联合抽取的 HCl 的收益与这个抽取系统是 75% 。为在两个的 HCl 的移动的机制直接、联合的抽取被调查。为联合抽取, R 3 NHCl 离子对建筑群涉及 HCl 移动。为直接抽取,机制在 HCl 的高集中包含了氢契约的形成。 | Yunzhao Li Xingfu Song Guilan Chen Shuying Sun Yanxia Xu Jianguo Yu | 2015 | Frontiers of Chemical Science and Engineering2015,9,4: | 6 |
| 3 | An electrochemical impedance spectroscopic study of the electronic and ionic transport properties of LiCoO_2 cathode显示文摘The storage behavior and process of the first delithiation-lithiation of LiCoO2 cathode were investigated by electrochemical impedance spectroscopy(EIS). The electronic and ionic transport properties of LiCoO2 cathode along with variation of electrode potential were obtained in 1 mol·L?1 LiPF6-EC:DMC:DEC electrolyte solution. It was found that after 9 h storage of the LiCoO2 cathode in electrolyte solu-tions,a new arc appears in the medium frequency range in Nyquist plots of EIS,which increases with increasing the storage time. In the charge/discharge processes,the diameter of the new arc is reversi-bly changed with electrode potential. Such variation coincides well with the electrode potential de-pendence of electronic conductivity of the LiCoO2. Thus this new EIS feature is attributed to the change of electronic conductivity of LixCoO2 during storage of the LiCoO2 cathode in electrolyte solutions,as well as in processes of intercalation-deintercalationtion of lithium ions. It has been revealed that the reversible increase and decrease of the resistance of SEI film in charge-discharge processes can be also ascribed to the variation of electronic conductance of active materials of the LiCoO2 cathode. | ZHUANG QuanChao XU JinMei FAN XiaoYong DONG QuanFeng JIANG YanXia HUANG Ling SUN ShiGang | 2007 | Chinese Science Bulletin2007,52,9: | 5 |
| 4 | Arctic sea ice volume export through the Fram Strait from combined satellite and model data:1979–2012显示文摘By combing satellite-derived ice motion and concentration with ice thickness fields from a popular model PIOMAS we obtain the estimates of ice volume flux passing the Fram Strait over the 1979–2012 period. Since current satellite and field observations for sea ice thickness are limited in time and space, the use of PIOMAS is expected to fill the gap by providing temporally continued ice thickness fields. Calculated monthly volume flux exhibits a prominent annual cycle with the peak record in March(roughly 145 km3/month) and the trough in August(10 km^3/month). Annual ice volume flux(1 132 km^3) is primarily attributable to winter(October through May) outflow(approximately 92%). Uncertainty in annual ice volume export is estimated to be 55 km^3(or 5.7%). Our results also verified the extremely large volume flux appearing between late 1980 s and mid-1990 s. Nevertheless, no clear trend was found in our volume flux results. Ice motion is the primary factor in the determination of behavior of volume flux. Ice thickness presented a general decline trend may partly enhance or weaken the volume flux trend. Ice concentration exerted the least influences on modulating trends and variability in volume flux. Moreover, the linkage between winter ice volume flux and three established Arctic atmospheric schemes were examined. Compared to NAO, the DA and EOF3 mechanism explains a larger part of variations of ice volume flux across the strait. | ZHANG Zehua BI Haibo SUN Ke HUANG Haijun LIU Yanxia YAN Liwen | 2017 | Acta Oceanologica Sinica2017,36,1: | 4 |
| 5 | Evaluation of oasis stability in the lower reaches of the Tarim River显示文摘Oasis stability in the lower reaches of the Tarim River was assessed at the landscape scale(including changes in landscape pattern and land use in the oasis) and at the regional scale(including the cold-island effect and NDVI of the oasis) based on the methods of landscape ecology,GIS and Remote Sensing(RS).Thematic Mapping(TM) remote sensing images from 1990,2000 and 2009 were employed along with the related meteorological and hydrological data pertaining to the reclamation area of the oasis in the lower reaches of the Tarim River.The results indicated that landscape heterogeneity and oasis complexity increased between 1990 and 2000.The comprehensive index of the degree of land use,the average index of the cold-island effect,NDVI value and oasis stability all decreased.However,the change trends in the indices referred to above were opposite between 2000 and 2009,and oasis stability was enhanced to some extent. | Chao LENG YaNing CHEN XinGong LI YanXia SUN | 2011 | Journal of Arid Land2011,3,2: | 4 |
| 6 | Service allocation based on QoS evaluation in military organization cloud cooperation显示文摘The problem of cloud cooperation of military service providers(MSPs) is addressed for allocating limited resources to military service users(MSUs) that are geographically distributed. The MSPs, also called military organization clouds, are virtualized and encapsulated by the services they can offer and each of them contains different kinds of resources that MSU needs. The MSPs are also geographically dispersed. They are required to allocate their resources to the MSU complying with the corresponding quality of service(Qo S), so that each MSU gathers the services it needs to guarantee its task to be implemented. The outline of military organization cloud cooperation is discussed and the method of service optimal selection is proposed based on Qo S evaluation. The Qo S evaluation method based on exponential approximation is put forward to include the users' will. Simulation results verify the effectiveness of the proposed algorithm. | An Zhang Haiyang Sun Yanxia Zhang | 2016 | Journal of Systems Engineering and Electronics2016,27,2: | 3 |
| 7 | Defect engineering of molybdenum disulfide through ion irradiation to boost hydrogen evolution reaction performance显示文摘The inert basal plane of molybdenum disulfide (MoS2) restrains its further hydrogen evolution reaction (HER) performance.This work attempts ion irradiation to activate inert basal plane of MoS2 nanosheet to improve its electrocatalytic performance.Experimental results demonstrate the sulphur vacancies generated by ion irradiation on the basal plane of MoS2 mainly boost the efficiency of HER performance.The moderate fluence of carbon ion irradiation gains the optimum HER performance with an onset potential of 77 mV and Tafel slope of 66 mV/dec. | Cheng Sun Peipei Wang Hao Wang Chuan Xu Juntong Zhu Yanxia Liang Ying Su Yining Jiang Wenqi Wu Engang Fu Guifu Zou | 2019 | Nano Research2019,12,7: | 3 |
| 8 | Studies of the first lithiation of graphite materials by electrochemical impedance spectroscopy显示文摘First lithiation of graphite electrode in 1 mol/L LiPF6-EC:DEC:DMC electrolyte was investi- gated by electrochemical impedance spectroscopy (EIS). The results illustrated that the first arc in the high-frequency range observed in the Nyquist dia- gram appears near 0.9 V in the initial lithiation of graphite electrode, and its diameter increases with the decrease of polarization potential. These EIS features were attributed to the formation and growth of SEI film. Appropriate equivalent circuit was pro- posed to fit the experimental EIS data. The fitting results revealed the process of the formation and growth of SEI film, and evaluated quantitatively the resistance of charge transfer, as well as the capaci- tance of double layer along with the increase of po- larization potentials. | ZHUANG Quanchao CHEN Zuofeng DONG Quanfeng JIANG Yanxia HUANG Ling SUN Shigang | 2006 | Chinese Science Bulletin2006,51,9: | 3 |
| 9 | Effects of AlN on the densification and mechanical properties of pressureless-sintered SiC ceramics显示文摘In the present work, Si C ceramics was fabricated with Al N using B_4 C and C as sintering aids by a solid-state pressureless-sintered method. The effects of Al N contents on the densification, mechanical properties, phase compositions, and microstructure evolutions of as-obtained Si C ceramics were thoroughly investigated. Al N was found to promote further densification of the Si C ceramics due to its evaporation over 1800 °C,transportation, and solidification in the pores resulted from Si C grain coarsening. The highest relative density of 99.65% was achieved for Si C sample with 15.0 wt% Al N by the pressureless-sintered method at 2130 °C for 1 h in Ar atmosphere. Furthermore, the fracture mechanism for Si C ceramics containing Al N tended to transfer from single transgranular fracture mode to both transgranular fracture and intergranular fracture modes when the sample with 30.0 wt% Al N sintered at 1900 °C for 1 h in Ar. Also, Si C ceramics with 30.0 wt% Al N exhibited the highest fracture toughness of 5.23 MPa m^(1/2) when sintered at 1900 °C. | Qisong Li Yujun Zhang Hongyu Gong Haibin Sun Yanxia Zhai Weiya Zhu Jie Jing | 2016 | Progress in Natural Science:Materials International2016,26,1: | 2 |
| 10 | Multi-omic characterization of genome-wide abnormal DNA methylation reveals diagnostic and prognostic markers for esophageal squamous-cell carcinoma显示文摘This study investigates aberrant DNA methylations as potential diagnosis and prognosis markers for esophageal squamous-cell carcinoma(ESCC),which if diagnosed at advanced stages has<30%five-year survival rate.Comparing genome-wide methylation sites of 91 ESCC and matched adjacent normal tissues,we identified 35,577 differentially methylated CpG sites(DMCs)and characterized their distribution patterns. | Yiyi Xi Yuan Lin Wenjia Guo Xinyu Wang Hengqiang Zhao Chuanwang Miao Weiling Liu Yachen Liu Tianyuan Liu Yingying Luo Wenyi Fan Ai Lin Yamei Chen Yanxia Sun Yulin Ma Xiangjie Niu Ce Zhong Wen Tan Meng Zhou Jianzhong Su Chen Wu Dongxin Lin | 2022 | Signal Transduction and Targeted Therapy2022,7,3: | 2 |
| 11 | Advanced lignin-acrylamide water treatment agent by pulp and paper industrial sludge: Synthesis, properties and application显示文摘A novel flocculant LA(lignin-acrylamide polymer), which was used as aid for aluminum sulfate and polyaluminum chloride in this study, was prepared by grafting acrylamide onto lignin that deriving from pulp and papermaking sludge. Physicochemical properties of LA were measured by X-ray photoelectron spectroscopy and scanning electron microscopy. The experimental outcome indicated acrylamide was grafted onto the lignin backbone successfully. The efects of LA addition were evaluated on coagulation performance and floc characteristics as a function of aluminum(Al) dosage, such as floc size, growth rate, strength and recoverability. Efects of diferent dosing sequences, Al dosed first and LA dosed first, were also investigated. LA used as coagulant aid markedly enhanced the removal efciency of turbidity and dissolved organic carbon, especially at low Al dosages. The dissolved organic carbon removal efciencies of aluminum sulfate and polyaluminum chloride at the Al dosage range selected in this study were improved more than 30% and 5% by LA, respectively. LA dramatically enlarged floc size and it was in the order: Al dosed first > LA dosed first > Al. Floc strength and recoverability were also improved by LA. LA played a significant role in charge neutralization, adsorption and bridging in floc formation. | Hongyan Rong Baoyu Gao Yanxia Zhao Shenglei Sun Zhonglian Yang Yan Wang Qinyan Yue Qian Li | 2013 | Journal of Environmental Sciences2013,25,12: | 2 |
| 12 | Cellulose derived biochar:Preparation,characterization and Benzo[α]pyrene adsorption capacity显示文摘Edible oil is prone to be contaminated by Benzo[a]pyrene(BaP)during production and processing.Adsorption is an important technology for the removal of BaP from edible oil,and biochar as a new type of adsorbent for the treatment BaP has received extensive attention.In this study,we prepared unmodified biochar and ZnCl_(2)-modified biochar from sesame straw cellulose(SSB and SSZ)and sesame capsule cellulose(SCB and SCZ),carried out structure characterization by Fourier Transform Infrared(FT-IR),Brunauer-Emmett-Teller(BET)and Scanning Electron Microscope(SEM),and finally evaluated their potential effectiveness in BaP removal from sesame oil.FT-IR results revealed that SSZ and SCZ showed higher peak intensities,indicating that they could provide more active sites for adsorption.The results of XRD presented that SSZ and SCZ had a higher graphitization degree than the unmodified biochar.SEM results showed that the SSZ and SCZ had more complex pore structure,which is beneficial to adsorption.BET analysis results showed that SSZ and SCZ had a higher specific surface area of 1622.83-1797.39 m^(2)/g and a better developed porous structure(the total pore volume Vtotal was 0.9434-1.0023 cm^(3)/g)than the SSB and SCB(specific surface area was 350.55-352.59 m^(2)/g,and Vtotal was 0.1907-0.1918 cm^(3)/g),indicating that modification promoted the formation of porous structure and thus improved the adsorption capacity of biochar.Adsorption experiments confirmed once again that the BaP removal rates of SSZ and SCZ(92.67%-96.13%)were much higher than that of unmodified biochar(3.34%-4.28%),and the BaP content in the sesame oil treated by SSZ and SCZ were far below the current EU maximum levels(2μg/kg).Therefore,the modified biochar from cellulose is a promising adsorbent for BaP removal.In future studies,the influences of bichar on the nutritional quality of edible oil should be taken into consideration so as to find an ideal active carbon substitute for BaP removal in edible oil. | Qiaoli Yang Yanxia Sun Wenhui Sun Zhao Qin Huamin Liu Yuxiang Ma Xuede Wang | 2021 | Grain & Oil Science and Technology2021,4,4: | 2 |
| 13 | Molecular phylogeny of tribe Atraphaxideae(Polygonaceae)evidenced from five cpDNA genes显示文摘Traditionally,Atraphaxis,Calligonum,Pteropyrum and Parapteropyrum are included in the tribe Atraphxideae.Recently,sequence data has revealed that this tribe is not monophyletic.The structure of the tribe was examined by adding more taxa and sequences to clarify the congruence between morphology and molecular phylogeny,the systematic placements of four genera in Polygonaceae,as well as the infra-generic relationships of Atraphaxis and Calligonum within Atraphaxideae.Five chloroplast genes,atpB-rbcL,psbA-trnH,trnL–trnF, psbK-psbI,and rbcL of Atraphaxis,Calligonum,Pteropyrum,and Parapteropyrum were sequenced.The non-monophyly of Atraphaxideae was confirmed.Atraphaxis and Calligonum,respectively,formed a monophyletic group that was well supported.Calligonum is closely related to Pteropyrum;Atraphaxis is sister to Polygonum s.str.; and Parapteropyrum is allied with Fagopyrum.Although the morphology suggested the four genera should form a tribe,the molecular data indicated Atraphaxideae was not one monophyletic group.The clades identified within Atraphaxis corresponded well with the current sectional classification based on morphological features.As for Calligonum,Medusa was identified as a non-monophyletic section. | YanXia SUN MingLi ZHANG | 2012 | Journal of Arid Land2012,4,2: | 2 |
| 14 | A Method for Mass-rearing Aphidius gifuensis(Hymenoptera: Aphidiidae)显示文摘[Objective] This study presents a method for mass rearing of Aphidius gifuensis, a dominant endoparasitoid of Myzus persicae on tobacco in Southwest China. [Method] The tobacco cultivar Honghuadajinyuan(Nicotiana tabacum) was used as the host plant and M. persicae was the host insect. In a greenhouse, tobacco seedlings were reared in plastic trays. The seedlings at three-true-leaf stage were inoculated with two to three aphids per plant using aphid source with a parasitism rate of 47% ±3.9%. [Result] By this inoculation method, the aphids and parasites were simultaneously inoculated on host plants. After approximately 25 d of rearing, we were able to produce 82.5±5.17 aphid mummies per tobacco seedling. A total of 445 500 aphid mummies were produced in one greenhouse(36 rearing trays per greenhouse) during an approximately 50-day rearing period. The emergence rate was 93.4% ±2.76%, and 54% of the mummies were females. [Conclusion] The demonstrated technological feasibility of using tobacco seedlings for the mass rearing of A. gifuensis increases the potential for the biological control of M. persicae. | Xinzhong WANG Jian ZHU Junwei SUN Yanxia HU Dexun WANG | 2014 | Agricultural Science & Technology2014,15,3: | 2 |
| 15 | Design, synthesis, insecticidal evaluation and molecular docking studies of cis-nitenpyram analogues bearing diglycine esters显示文摘Based on the strategies of receptor structure-guided neonicotinoid design, a series of novel cis-nitenpyram analogues bearing diglycine esters were designed and synthesized. Preliminary bioassays indicated that the insecticidal spectra of the target compounds were expanded compared with our previous work, while all the target compounds presented excellent insecticidal activities against Nilaparvata lugens and Aphis medicagini at 100 mg/L. Among these analogues, 6b showed 100% mortality against Nilaparvata lugens (LC 50 = 0.163 mg/L) and 90% against Aphis medicagini at 4 mg/L. SARs suggested that the insecticidal potency of our designed cis-nitenpyram analogues was dual-controlled by the size and species of the ester groups. The molecular docking simulations revealed that the structural uniqueness of these analogues may lead to a unique molecular recognition and binding mode compared with the previously designed compounds. Introduction of the peptide bond gave rise to more significant hydrogen bonds between the nitenpyram analogues bonding with the amino acid residues of insect nAChRs. The docking results explained the SARs observed in vitro, and shed light on the novel insecticidal mechanism of these cis-nitenpyram analogues. | CHEN YanXia SUN ChuanWen WEN XiaXia ZHANG WangGeng | 2013 | Science China Chemistry2013,56,2: | 2 |
| 16 | A shedding soluble form of interleukin-17 receptor D exacerbates collagen-induced arthritis through facilitating TNF-α-dependent receptor clustering显示文摘Rheumatoid arthritis(RA)is exacerbated by TNF-alpha signaling.However,it remains unclear whether TNF-α-activated TNFR1 and TNFR2 are regulated by extracellular factors.Here,we showed that soluble glycosylated interleukin-17 receptor D(sIL-17RD),which was produced by proteolytic cleavage,enhanced TNF-α-induced RA.We revealed that IL-17RD shedding was induced by the proteolytic enzyme TACE and enhanced by TNF-αexpression in macrophages.Intriguingly,sIL-17RD was elevated in the sera of arthritic mice and rats.Recombinant sIL-17RD significantly enhanced the TNF-α-induced proinflammatory response by promoting TNF-α-TNFR-sIL-17RD complex formation and receptor clustering,leading to the accelerated development of collagen-induced arthritis.Our observations revealed that ectodomain shedding of IL-17RD occurred in RA to boost the TNF-α-induced inflammatory response.Targeting sIL-17RD may provide a new strategy for the therapy of RA. | Sihan Liu Yanxia Fu Kunrong Mei Yinan Jiang Xiaojun Sun Yinyin Wang Fangli Ren Congshan Jiang Liesu Meng Shemin Lu Zhihai Qin Chen Dong Xinquan Wang Zhijie Chang Shigao Yang | 2021 | Cellular & Molecular Immunology2021,18,8: | 1 |
| 17 | Acupuncture for the Management of Chronic Headache: A Systematic Review显示文摘 | Yanxia Sun Tong J. Gan | 2008 | Anesthesia & Analgesia2008,,6: | 1 |
| 18 | Polyoxometalates Immobilized in Ordered Mesoporous Carbon Nitride as Highly Efficient Water Oxidation Catalysts显示文摘 | Jian Wu Lingwen Liao Wensheng Yan Yan Xue Yongfu Sun Xin Yan Yanxia Chen Yi Xie | 2012 | ChemSusChem2012,,7: | 1 |
| 19 | Effects of metal ions on crystal morphology and size of calcium sulfate whiskers in aqueous HCl solutions 显示文摘 | Mao Xiulong Song Xingfu Lu Guimin Sun Yuzhu Xu Yanxia Yu Jianguo | 2014 | Industrial & Engineering Chemistry Research2014,53,17: | 1 |
| 20 | Preparation of calcium carbonate and hydrogen chloride from distiller waste based on reactive extraction-crystallization process 显示文摘 | Li Yunzhao Song Xingfu Chen Guilan Sun Ze Xu Yanxia Yu Jianguo | 2015 | Chemical Engineering Journal2015,278,: | 1 |