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72篇 您的检索式:作者名="Cuilan"
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1A promising new class of irradiation tolerant materials:Ti_2ZrHfV_(0.5)Mo_(0.2) high-entropy alloy显示文摘Recently, high-entropy alloys(HEAs) or multi-principal-element alloys with unprecedented physical,chemical, and mechanical properties, have been considered as candidate materials used in advanced reactors due to their promising irradiation resistant behavior. Here, we report a new single-phase bodycentered cubic(BCC) structured Ti_2 ZrHfV_(0.5)Mo_(0.2) HEA possessing excellent irradiation resistance, i.e.,scarcely irradiation hardening and abnormal lattice constant reduction after helium-ion irradiation,which is completely different from conventional alloys. This is the first time to report the abnormal XRD phenomenon of metallic alloys and almost no hardening after irradiation. These excellent properties make it to be a potential candidate material used as core components in next-generation nuclear reactors. The particular irradiation tolerance derives from high density lattice vacancies/defects.Yiping Lu Hefei Huang Xuzhou Gao Cuilan Ren Jie Gao Huanzhi Zhang Shijian Zheng Qianqian Jin Yonghao Zhao Chenyang Lu Tongmin Wang Tingju Li 2019Journal of Materials Science & Technology2019,35,3:23
2GW5-Like, a homolog of GW5, negatively regulates grain width, weight and salt resistance in rice显示文摘Grain size is an important determinant of yield potential in crops. We previously demonstrated that natural mutations in the regulatory sequences of qSW5/GW5 confer grain width diversity in rice. However, the biological function of a GW5 homolog, named GW5-Like(GW5 L), remains unknown. In this study, we report on GW5 L knockout mutants in Kitaake, a japonica cultivar(cv.)considered to have a weak gw5 variant allele that confers shorter and wider grains. GW5 L is evenly expressed in various tissues, and its protein product is localized to the plasma membrane. Biochemical assays verified that GW5 L functions in a similar fashion to GW5. It positively regulates brassinosteroid(BR) signaling through repression of the phosphorylation activity of GSK2. Genetic data show that GW5 L overexpression in either Kitaake or a GW5 knockout line, Kasaorf3(indica cv. Kasalath background), causes more slender, longer grains relative to the wild-type. We also show that GW5 L could confer salt stress resistance through an association with calmodulin protein OsCa M1-1. These findings identify GW5 L as a negative regulator of both grain size and salt stress tolerance, and provide a potential target for breeders to improve grain yield and salt stress resistance in rice.Peng Tian Jiafan Liu Changling Mou Cuilan Shi Huan Zhang Zhichao Zhao Qibing Lin Jie Wang Jiulin Wang Xin Zhang Xiuping Guo Zhijun Cheng Shanshan Zhu Yulong Ren Cailin Lei Haiyang Wang Jianmin Wan 2019Journal of Integrative Plant Biology2019,61,11:9
3Microstructure and Properties of Low Temperature Composite Chromized Layer on H13 Tool Steel显示文摘Low temperature composite chromizing is a process composed of a plain ion-carbonitriding or ion-nitriding at 550~580℃, followed by a low-temperature chromizing in a salt-bath of 590℃. The microstructure and properties of the low temperature composite chromized layer on H13 tool steel were investigated using metallography,X-ray diffraction, microanalysis, hardness and wear tests. It was found that this low temperature process was thermodynamically and kinetically possible, and the composite chromized layer on H13 steel, with a thickness of 3~6μm,consisted of three sub-layers (bands), viz. the outer Cr-rich one, the intermediate (black) one, and the inner, original white layer. After chromizing, the former diffusion layer was thickened. The results of X-ray diffraction showed that the composite chromized layer contained such nitrides and carbides of chromium as CrN, Cr2N, (Cr, Fe)23C6, and (Cr, Fe)7C3, as well as plain α-(Fe, Cr). A high surface microhardness of 1450~1550 HV0.025, which is much higher than that obtained by the conventional ion carbonitriding and ion nitriding, was obtained. In addition, an excellent wear resistance was gained on the composite chromized layer.Cuilan WU, Chengping LUO and Ganfeng ZOU College of Mechanical Engineering, South China University of Technology, Guangzhou 510641, China 2005Journal of Materials Science & Technology2005,21,2:9
4How do medical students understand disease behaviors?Evidence from event-related potentials显示文摘Objective: To investigate how medical students process Western medicine(WM) terms vs. traditional Chinese medicine(TCM) terms and how this is impacted by analogical priming from the perspective of cognitive neuroscience.Methods: The experiments were designed as a 2(TCM terms vs. WM terms) × 2(correct terms vs.incorrect terms) × 2(analogical priming task vs. non-priming task) scheme. A total of 26 medical students completed a non-priming judgment task and an analogical priming judgment task on medical terms. During the tasks, the participants were asked to make correct/incorrect judgments on WM terms and TCM terms, and their behavioral data and event-related potentials(ERPs) were recorded.Results: Behaviorally, the response speed and accuracy of WM terms were higher than those of TCM terms(both P <.001), indicating a prominent concreteness effect. Analogical priming shortened the response time to medical terms(P <.001), and the response time to TCM terms was shortened more significantly(P =.001). For ERPs, WM terms induced a larger P200(an early positive ERP component), a smaller N400(a negative ERP component), and a higher late positive ERP component, indicating superiority of attention adjustment, smaller-scale semantic activation, and a higher cost of late semantic analysis and integration. However, the analogical priming eliminated the difference between WM and TCM terms in P200 and N400 while maintaining it in the LPC. This suggests that WM terms are sensitive to analogical attention adjustment, and TCM terms are susceptible to analogical semantic integration.Conclusion: Our findings suggest that WM and TCM disease behavior terms may initially differ in concreteness or the use of a verbal-linguistic system. Analogy is more conducive to understanding TCM terms. This research provides important neuroscientific evidence of the difference in thinking between TCM and WM.Huiwen Huang Buxin Han Chunhua Jia Cuilan Ma Jin Guo Sisi Ma 2022Journal of Traditional Chinese Medical Sciences2022,9,2:7
5Big data-enabled multiscale serviceability analysis for aging bridges显示文摘Yu Liang Dalei Wu Guirong Liu Yaohang Li Cuilan Gao Zhongguo John Ma Weidong Wu 2016Digital Communications and Networks2016,2,3:5
6Environmental information recorded in shallow ice core of Dasuopu glacier in the Qinghai-Tibetan Plateau显示文摘Cuilan Huang Tandong Yao Jianchen Pu Keqin Duan Ninglian Wang Lide Tian 1998Chinese Science Bulletin1998,43,22:5
7Role of VEGF-A/C and CCR-7 in the enhanced metastasis of A549 cells induced by 2 and 4 Gy X-rays in vitro and in vivo显示文摘Radiotherapy is a common strategy in treating lung cancer.Accumulating evidence suggested that radiotherapy has the potential to promote the metastasis and invasion of carcinoma cells.In this study,we aimed to testify the role of vascular endothelial growth factor(VEGF)and C-C chemokine receptor-7(CCR-7)in the metastasis of human adenocarcinoma A549 cells in vivo and in vitro.Nude mice were injected with A549 cells irradiated by 0,2 and 4 Gy X-rays,respectively.Quantitative detections of VEGF-A/C and CCR-7 mRNA from lung sample were performed by real-time RT-PCR.Small interfering RNA(siRNA)transfection technology was further used to testify the role of the genes in the metastasis of A549 cells.VEGF and CCR-7mRNA could only be detected 10 weeks post injection in vivo when visible tumor foci scattered in lung.In addition,VEGF-A/C mRNA expressed significantly higher in mice injected with A549 cells irradiated by 2 and 4 X-rays than those with 0 Gy X-rays irradiation.On the other hand,A549 cells with or without X-rays irradiation transfected with VEGF siRAN and CCR-7 siRNA showed a dramatic decrease of invasiveness compared to normal A549 cells with or without irradiation.The migration indexes were?0.7,?0.48,?0.34 and?0.32 for A549 cells with CCR-7 siRNA,VEGF siRNA,X-rays combined CCR-7 siRNA and X-rays combined VEGF-siRNA respectively.These results demonstrated that X-rays could promote the metastasis of A549 cells,and VEGF-A/C and CCR-7 mRNA were closely related to the metastasis of A549 cells in vivo and in vitro.LV Jin JIANG QiSheng SONG XiuJun WANG CuiLan GUO LiJie WANG SiNian LI FengSheng HU WenWei 2014Science China(Technological Sciences)2014,57,5:4
8A Novel Duplex Low-temperature Chromizing Process at 500℃显示文摘在 500 °C 的一个优化低温度的渗铬过程经由由先锋血浆 nitriding 组成的一个双渗铬过程与 0.45 wt %碳在平凡的中等碳的钢上被认识到,并且跟随的盐洗澡 thermoreactive 免职和散开( TRD )有薄散开层的渗铬 process.CrN 层在下面被形成。双渗铬过程被光显微镜学(OM ) 学习,扫描电子显微镜学(SEM ) ,精力散 X 光检查光谱学(版本) , X 光检查衍射(XRD ) ,和传播电子显微镜学(TEM ) 。在 500 °C 的渗铬速度被增加更多的 Cr-Fe 粉末进盐洗澡成功地提高,这被发现,并且 CrN 层在厚度与一般水准 8.1 亩 m 以优先的氮化物混合物 layer.A CrN 层的成本形成了,在微坚硬的 1382 HV_( 0.01 )被双渗铬更为 24 h.Further 在 500 °C 在底层上形成, CrN 层由 nanocrystalline CrN 谷物组成了。Huiliang CAO Cuilan WU Jiangwen LIU Chengping LUO Ganfeng ZOU 2007Journal of Materials Science & Technology2007,23,6:3
9Analyses of the long-term salinity variability in the Bohai Sea and the northern Huanghai (Yellow) Sea显示文摘Based on the comprehensive collection of the field observed salinity of the Bohai Sea (BHS) and the northern Huanghai Sea (NHS) from the 1950s to the present, the patterns of 10-years-averaged salinity at the different layers in the recent five decades (the 1950s, the 1960s, the 1970s, the 1980s and the 1990s) are obtained by the spatial-temporal interpolation technique with the scrupulous data quality control in this study. Then, by combining the spatial-temporal interpolation technique with successive correction method, the annual distributions of salinity both in the BHS and in the NHS are obtained as well. The data analyses indicate that the overall salinity in the BHS and the NHS increases from the 1960s till the present, with the increase of annual mean salinity of 0.04 psu from the 1950s, and the maximum increase rate of salinity is about 0.14 psu/a in the Bohai Bay. The high salinity tongue extended significantly from the NHS into the BHS. The intensified eastern wind field is related to the western intrusion of the NHS warm current, which probably leads to the moving forward of the high salinity water mass into the BHS. However, it is rather different from the salinity distribution characteristics between the 1950s and the 1960s. The extensive precipitation in the 1960s could lead to an increase in the discharge of the Huanghe River, which might result in the decrease of salinity in the BHS. But the salinity isoline of 32 in the NHS still extended significantly into the BHS in the 1960s. Since the 1980s, the patterns of salinity distribution have changed thoroughly. The salinity in the central area of the BHS was low, while the salinity in the Bohai Bay and the Liaodong Bay was higher than the other regions with its horizontal salinity gradient decreasing in the 1980s. The Empirical Orthogonal Function Analysis (EOF) is also conducted to study the interannual salinity variability of the BHS and the NHS. The correlation coefficient between the time coefficient series of the main mode and the Huanghe River discharge can reach-64.57%. It can be concluded that salinity variation of the BHS and the NHS has strong negative correlation with the Huanghe River discharge.YU Huaming BAO Xianwen LU Cuilan CHEN Xu'en KUANG Liang 2009Acta Oceanologica Sinica2009,28,5:3
10Shrinkage Characteristics of Lime Concretion Black Soil as Affected by Biochar Amendment显示文摘Studies have reported that biochar is a sustainable amendment that improves the chemical and physical properties of soil.In this study,an incubation experiment was conducted to investigate the effects of different application rates of biochar on the cracking pattern and shrinkage characteristics of lime concretion black soil after three wetting and drying cycles.Biochar derived from the corn straw and peanut shell mixture was applied to the soil at rates of 0,50,100,and 150 g kg^(-1)dry weight,representing the treatments T_(0),T_(50),T_(100),and T_(150),respectively.During the wetting and drying cycles,the cracking pattern and shrinkage characteristics of the unamended and amended soil samples were recorded.Application of biochar significantly increased soil organic carbon content in the samples.During soil desiccation,biochar significantly reduced the rate of water loss.Cracks propagated slowly and stopped due to the relatively higher water content in the soil applied with biochar.The cracking area density(ρ_c),equivalent width,fractal dimension,and cracking connectivity index decreased during the drying process with increasing application rate of biochar.Theρ_(c )value of the T_(50),T_(100),and T_(150) treatments decreased by 33.6%,52.1%,and 56.9%,respectively,after three wetting and drying cycles,whereas the T_(0) treatment exhibited a marginal change.The coefficient of linear extensibility,an index used to describe onedimentional shrinkage,of the unamended soil sample(T_(0))was approximately 0.23.Application of 100 and 150 g kg^(-1)biochar to the soil significantly reduced the shrinkage capacity by 41.45%and 45.54%,respectively.The slope of the shrinkage characteristics curve,which indicates the ralationship between soil void ratio and moisture ratio,decreased with increase in the application rate of biochar.Furthermore,compared with the T_(0) treatment,the proportional shrinkage zone of the shrinkage characteristic curve of the T_(50),T_(100),and T_(150) treatments decreased by 5.8%,13.1%,and 12.1%,respectively.Differences were not observed in the moisture ratio at the maximum curvature of the shrinkage characteristic curve among the treatments.The results indicate that biochar can alter the cracking pattern and shrinkage characteristics of lime concretion black soil.However,the effects of biochar on the shrinkage of lime concretion black soil are dependent on the number of wetting and drying cycles.WEI Cuilan GAO Weida William Richard WHALLEY LI Baoguo 2018Pedosphere2018,28,5:3
11Effects of Integrated Soil-Crop System Management on Soil Organic Carbon Characteristics in a Primosol in Northeast China显示文摘A synchronous increase in crop productivity, nutrient use efficiency, and soil carbon(C) sequestration is important from the point of view of food security and environmental protection. In recent years, integrated soil-crop system management(ISSM), which uses crop models and advanced nutrient management to redesign cropping systems, has been successfully demonstrated to achieve both high crop productivity and high nutrient use efficiency in China, but the effects of ISSM on soil organic C(SOC) characteristics remain unknown. In this study, the effects of current farmers' practice(FP), high-yielding practice(HY), which maximizes yields without considering costs, and ISSM on the content and chemical composition of SOC were studied in a 4-year(2009–2013) field plot experiment with maize(Zea mays L.) monoculture in an Alluvic Primosol in Northeast China. The ISSM resulted in higher soil total organic C(TOC), water-soluble organic C, easily-oxidizable organic C, particulate organic C, and humic acid C compared with HY and FP in the region. The SOC contents in aggregate size fractions generally followed a similar pattern to TOC. Compared with FP,HY decreased the mean weight diameter, geometric mean diameter, percentage of > 0.25-mm water-stable aggregates, and the stability ratio of water-stable aggregates, and increased the structure-deterioration rate and index of unstable aggregates. The opposite trend was observed between ISSM and HY. Solid-state ^(13)C nuclear magnetic resonance spectra of bulk soil showed that ISSM had higher O-alkyl C and aliphatic C/aromatic C ratio, but lower aromatic C, carbonyl C, and alkyl C/O-alkyl C and hydrophobic C/hydrophilic C ratios than HY and FP. Our results suggest that ISSM improves the quantity and quality of SOC and has a positive effect on soil aggregation and aggregate stability.ZHANG Jinjing CAO Zhiyuan FENG Guozhong LI Mengyao LI Cuilan GAO Qiang WANG Lichun 2017Pedosphere2017,27,5:3
12Characteristics of a prototype CdZnTe detector显示文摘Cadmium zinc telluride(CZT)is a preferred material for X-ray and gamma-ray detector.Thanks to the relatively high atomic number,high density and wide band-gap,CZT detector possesses sharp energy resolution and high detection efficiency without cryogenic cooling.We have developed a CdZnTe detector with an energy resolution of 3.45%(FWHM)at 59.54 keV at room temperature,and it is used for X-ray fluorescence analysis.In this paper, leakage current,energy resolution and long term stability of the CZT detector are discussed.XU Huichao CHENG Cheng ZHAO Cuilan ZHANG Jinzhou PU Shijie 2007Nuclear Science and Techniques2007,18,6:3
13Abnormal orientation relation between fcc and hcp structures revealed in a deformed high manganese steel显示文摘The crystallography of phase transformation is an important issue for studying metallic alloys.Here,we demonstrate an abnormal orientation relation between face-centered cubic(fcc) and hexagonal closepacked(hcp) phases due to the intersection of two ε_(hcp)-martensite variants in a high manganese steel.The corresponding crystallogra phic cha racteristics,including invariant line,habit plane and atomic steps,have been characterized by transmission electron micro scopy and the quasi-O-line model.In addition,the models of phase transfo rmation about the intersection are proposed based on transmission mechanisms of dislocations.Our findings enrich the theories of phase transformation and implicate the possibility to fabricate stro nger and tougher steel.Pan Xie Shucheng Shen Cuilan Wu Jianghua Chen 2021Journal of Materials Science & Technology2021,,1:2
14Influence of alloplasm on resistance to wheat scab显示文摘Using alloplasmic wheat as test materials, the genetic effect of cytoplasm on wheat scab resistance was studied by three methods including the determination of resistance of explant calli to Gibberella zeae toxin, the identification of inoculating single fixed position and the identification of field resistance. The results showed that among 'the homonucleo_heterocytoplasmic lines', resistance of calli to G. zeae toxin was different; the difference of cytoplasmic effect among different nucleoplasm combinations showed certain nucleoplasm interaction relation. Resistance of hybrid F 1 plants of reciprocal cross between alloplasmic line and disease-sensitive wheat variety to wheat scab was of clear difference. Hybrid F 1 of reciprocal cross between Ae. ventricosa cytoplasmic wheat and disease-sensitive or -resistant wheat variety all exhibited fine resistance effect of alloplasm. Compared with general common wheat variety, most alloplasmic wheats tested have stronger resistance. A few selected lines having Ae. ventricosa cytoplasm have a strong and stable resistance to scab. They can be a finer new resistant source.Wu Yuwen Ren Shuxin Liu Chunguang Hou Ning Zhang Cuilan Zhang Yan 1998Chinese Science Bulletin1998,43,12:2
15Dislocation-Induced Precipitation and Its Strengthening of Al–Cu–Li–Mg Alloys with High Mg显示文摘Generally, the good combination of pre-deformation and aging can improve the mechanical strength of the Al–Cu–Li–Mg alloys. However, the effects of pre-deformation on competitive precipitation relationship and precipitation strengthening have not been clarified in detail in Al–Cu–Li–Mg alloys with high Mg. In the present study, the effects of pre-deformation level on the microstructure and mechanical properties of an Al–2.95 Cu–1.55 Li–0.57 Mg–0.18 Zr alloy have been investigated. It is found that the introduction of dislocation by 5% pre-deformation can facilitate the precipitation of new successive composite precipitates and T _1 precipitates along the sub-grain boundaries or dislocations and inhibit the precipitation of dispersive GPB zones which is the main precipitates of the alloys without pre-deformation. The introduction of 5% pre-deformation can enhance the mechanical properties considerably. When the pre-deformation level increases from 5 to 15%, the number density of the successive composite precipitates and T _1 precipitates increases, and the aspect ratio of T _1 precipitates decreases. The decrease in T _1 precipitate aspect ratio and the increment of the successive composite precipitates result in the reduction in precipitation strengthening. Therefore, the increase in pre-deformation level from 5 to 15% does not further improve the mechanical properties of the alloys, although the dislocation strengthening increases continuously.Xiangpeng Gong Shifang Luo Shiyong Li Cuilan Wu 2021Acta Metallurgica Sinica(English Letters)2021,34,5:2
16Effect of Particle Size on the Hysteretic Behavior and Magnetocaloric Effect of La_(0.5)Pr_(0.5)Fe_(11.4)Si_(1.6) Compound显示文摘Bulk La_(0.5)Pr_(0.5)Fe_(11.4)Si_(1.6) compound exhibits a large magnetic-entropy change △S_m of 28.1 J/(kg K) for a magnetic-field change from 0 to 1.5 T at the Curie temperature,T_C of 186 K,accompanied by a large magnetic hysteresis of 56 J/kg and a noticeable thermal hysteresis of about 1 K.If the bulk sample is ground into middle-size particles(30-60 μm),then the thermal hysteresis is almost eliminated and the magnetic hysteresis loss is decreased by 29%,while the large △S_m maintains.Especially,fine powder with an average size of 2 μm shows the same T_C as the bulk and does not lose stability.Meanwhile,a comparatively large △S_m of 13.9 J/(kg K) and a hysteresis reduction of 70%are attained.The hysteresis reduction can be ascribed to the decrease of internal strains and to the improvement of heat transfer due to the increase of the ratio of the surface area to the volume.Jiaohong Huang Naikun Sun Cuilan Liu Yumei Ge Tao Zhang Feng Liu Pingzhan Si 2014Acta Metallurgica Sinica(English Letters)2014,27,1:2
17Unusual relationship between impact toughness and grain size in a high-manganese steel显示文摘The high-manganese steels are important structural materials,owing to their excellent toughness at low temperatures.However,the microstructural causes for their unusual properties have not adequately been understood thus far.Here,we report a reversal relationship between impact toughness and grain size in a high-manganese steel and its unrevealed microscopic mechanisms,which result in an excellent low-temperature toughness of the steel.Our investigations show that with increasing grain size the impact toughness of the steel can be improved drastically,especially at low-temperatures.Advanced electron microscopy characterization reveals that the enhanced impact toughness of the coarse-grained steel is attributed to the twinning induced plasticity and transformation induced plasticity effects,which produce large quantities of deformation twins,ε_(hcp)-martensite andα'_(bcc)-martensite.Inversely,in the fine-grained steels,the formation of deformation twins and martensite is significantly inhibited,leading to the decrease of impact toughness.Microstructural characterizations also indicate thatε_(hcp)-martensite becomes more stable thanα'_(bcc)-martensite with decreasing temperature,resulting in characteristic microstructures in the coarse-grained samples after impact deformation at liquid nitrogen temperature.In the coarse-grained samples under impact deformation at-80℃,ε_(hcp)-martensite transformation,α'_(bcc)-martensite transformation and deformation twinning all occur simultaneously,which greatly improves the toughness of the steel.Pan Xie Shucheng Shen Cuilan Wu Jiehua Li Jianghua Chen 2021Journal of Materials Science & Technology2021,,30:2
18Separation, concentration and determination of chloramphenieol in environment and food using an ionic liquid/salt aqueous two-phase flotation system coupled with high-performance liquid chromatography 显示文摘HAN Juan WANG Yun YU Cuilan 2011Anal Bioanal Chem2011,399,:1
19Positive Strain Rate Sensitivity and Deformation Behavior of a Fe–29Mn–3Al–3Si TWIP Steel显示文摘The Fe-29 Mn-3 Al-3 Si twin-induced plasticity(TWIP)steel is used to conduct quasi-static compression and dynamic impact deformation with strain rates ranging from 8.3×10^(-4) to 3800 s^(-1).The microstructures and properties of deformed samples under different strain rates were investigated comparatively.These results show that positive strain rate sensitivity was observed with the increase in strain rates and that there was a significant difference in strain rate sensitivity factor(m)between quasi-static compression(m=0.029)and dynamic impact deformation(m=0.190).Compared to the quasi-static compression,the dynamic impact deformation exhibited higher yield strength.Microstructural examination reveals that the primary twins were frequently found during the quasi-static compression process,and the secondary twins were rarely observed.However,the secondary and multi-fold deformation twins were florescent in the dynamic impact samples.At the initial stage of dynamic impact deformation,partial dislocations and staking faults on multiple conjugate{111}planes were simultaneously activated and produced a large number of Lomer-Cottrell dislocations,resulting in a large increase in yield strength during dynamic impact.Shucheng Shen Cuilan Wu Pan Xie Yuanrui Liu 2022Acta Metallurgica Sinica(English Letters)2022,35,11:1
20Water resistance, mechanical properties and biodegradability of methylat- ed-cornstarch/poly(vinyl alcohol) blend film显示文摘Zhao Guohua Liu Ya Fang Cuilan 2006Polymer Degradation and Stability2006,91,:1
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