|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Multi-functional SiC/Al Composites for Aerospace Applications显示文摘有大量的部分(55%-57%) 的多功能的 Al 矩阵 composites 原文如此,粒子与新 pres-sureless 渗入制造技术被生产。X 光检查察觉和显微镜的观察显示没有孔, macroscopi-cally 同类的 composites。调查进一步表明 SiC/Al composites 拥有低密度(2.94 g/cm3 ) ,高有弹性的模量(220 GPa ) ,由于热扩大的低系数的突出的热管理功能(8 潦吗? | Cui Yan Wang Lifeng Ren Jianyue | 2008 | Chinese Journal of Aeronautics2008,21,6: | 71 |
| 2 | Efficacy and safety evaluation of intravenous infusion of cervus and cucumis polypeptides for treatment of avascular necrosis of the femoral head: a randomized clinical trial显示文摘OBJECTIVE: To investigate the efficacy and safety of intravenous cervus and cucumis polypeptides for treating avascular necrosis of the femoral head(ANFH) in regard to pain and hip function in a randomized clinical trial.METHODS: A total of 96 subjects with ANFH who were recruited at the Orthopaedic Hospital Affiliated with Hebei United University and Qian Hai Femoral Head Hospital of Beijing were assigned by lottery to an intervention group(n = 48) or a control group(n = 48). All subjects underwent physical therapy and rehabilitation exercises. In addition,subjects in the intervention group were given intravenous infusions of cervus and cucumis polypeptides. Visual analogue scale(VAS), Harris hip score,and radiography or magnetic resonance imaging were applied to assess all subjects at the beginning of treatment and 3, 6, and 9 months afterward. All the subjects were followed up for 2 years.RESULTS: At the beginning of treatment, there were no statistically significant differences between the two groups in terms of the general condition of patients or the VAS and Harris hip scores(all P > 0.05). At 3, 6, and 9 months after treatment,however, the VAS score decreased and the Harris hip score increased in all patients, with the improvement of intervention group significantly greater than that of the control group(P < 0.05).The total effectiveness rates for the intervention and control groups were 89.58% and 70.83%, respectively, with the difference being statistically significant(P < 0.05). There was no statistically significant difference between the two groups in terms of the safety of the injections(P > 0.05).CONCLUSION: Intravenous infusion of cervus and cucumis polypeptides relieved pain and improved hip function of subjects with ANFH.Thus, the intravenous infusion of cervus and cucumis polypeptides was a safe, effective treatment for ANFH. | Wei Liyou Zhang Hongwei Li Xinmin Yang Chunyan Wang Guoqiang Zhang Lifeng Cui Mingwu Han Lijun | 2016 | Journal of Traditional Chinese Medicine2016,36,1: | 15 |
| 3 | Synthesis and kinetics investigation of meso-microporous Cu-SAPO-34 catalysts for the selective catalytic reduction of NO with ammonia显示文摘A series of meso-microporous Cu-SAPO-34 catalysts were successfully synthesized by a one-pot hydrothermal crystallization method, and these catalysts exhibited excellent NH_3-SCR performance at low temperature. Their structure and physic chemical properties were characterized by means of X-ray diffraction patterns(XRD), Scanning electron microscopy(SEM), Transmission electron microscopy(TEM), N_2 sorption-desorption, nuclear magnetic resonance(NMR), Inductively Coupled Plasma-Atomic Emission spectrometer(ICP-AES), X-ray absorption spectroscopy(XPS),Temperature-programmed desorption of ammonia(NH_3-TPD), Ultraviolet visible diffuse reflectance spectroscopy(UV-Vis DRS) and Temperature programmed reduction(TPR).The analysis results indicate that the high activities of Cu-SAPO-34 catalysts could be attributed to the enhancement of redox property, the formation of mesopores and the more acid sites. Furthermore, the kinetic results verify that the formation of mesopores remarkably reduces diffusion resistance and then improves the accessibility of reactants to catalytically active sites. The 1.0-Cu-SAPO-34 catalyst exhibited the high NO conversion(> 90%) among the wide activity temperature window in the range of 150–425℃. | Jixing Liu Fuhong Yu Jian Liu Lifeng Cui Zhen Zhao Yuechang Wei Qianyao Sun | 2016 | Journal of Environmental Sciences2016,28,10: | 8 |
| 4 | Heterogeneous lamellar-edged Fe-Ni(OH)_(2)/Ni_(3)S_(2)nanoarray for efficient and stable seawater oxidation显示文摘Development of efficient non-precious catalysts for seawater electrolysis is of great significance but challenging due to the sluggish kinetics of oxygen evolution reaction(OER)and the impairment of chlorine electrochemistry at anode.Herein,we report a heterostructure of Ni_(3)S_(2)nanoarray with secondary Fe-Ni(OH)_(2)lamellar edges that exposes abundant active sites towards seawater oxidation.The resultant Fe-Ni(OH)_(2)/Ni_(3)S_(2)nanoarray works directly as a free-standing anodic electrode in alkaline artificial seawater.It only requires an overpotential of 269 mV to afford a current density of 10 mA·cm^(-2)and the Tafel slope is as low as 46 m V·dec^(-1).The 27-hour chronopotentiometry operated at high current density of 100 mA·cm^(-2)shows negligible deterioration,suggesting good stability of the Fe-Ni(OH)_(2)/Ni_(3)S_(2)@NF electrode.Faraday efficiency for oxygen evolution is up to〜95%,revealing decent selectivity of the catalyst in saline water.Such desirable catalytic performance could be benefitted from the introduction of Fe activator and the heterostructure that offers massive active and selective sites.The density functional theory(DFT)calculations indicate that the OER has lower theoretical overpotential than Cl_(2) evolution reaction in Fe sites,which is contrary to that of Ni sites.The experimental and theoretical study provides a strong support for the rational design of high-performance Fe-based electrodes for industrial seawater electrolysis. | Baihua Cui Zheng Hu Chang Liu Siliang Liu Fangshuai Chen Shi Hu Jinfeng Zhang Wei Zhou Yida Deng Zhenbo Qin Zhong Wu Yanan Chen Lifeng Cui Wenbin Hu | 2021 | Nano Research2021,14,4: | 7 |
| 5 | Changes in soil carbon sequestration and soil respiration following afforestation on paddy fields in north subtropical China显示文摘Aims Although many studies have reported net gains of soil organic carbon(SOC)after afforestation on croplands,this is uncertain for Chinese paddy rice croplands.Here,we aimed to evaluate the effects of affores-tation of paddy rice croplands on SOC sequestration and soil respiration(R).Such knowledge would improve our understanding of the efctive-ness of various land use options on greenhouse gas mitigation in China.Methods The investigation was conducted on the Chongming Island,north subtropical China.Field sites were reclaimed from coastal salt marshes in the 1960s,and soils were homogeneous with simple land use:histories.SOC stocks and R,levels were monitored over one year in a paddy rice cropland,an evergreen and a deciduous broad-leaved plantation established on previous paddy fields and a reference fal-low land site never cultivated.Laboratory incubation of soil under fast-changing temperatures was used to compare the temperature sensitivity(Q10)of SOC decomposition across land uses.Important Findings After 15-20 years of afforestation on paddy fields,SOC concentra-tion only slightly increased at the depth of 0--5 cm but decreased in deeper layers,which resulted in a net loss of SOC stock in the top 40cm.Seasonal increase of sOC was observed during the rice-growing period in croplands but not in afforested soils,suggest-ing a stronger SOC sequestration by paddy rice cropping.However,SOC sequestered under cropping was more labile,as indicated by its higher contents of dissolved organic carbon and microbial bio-mass.Also,paddy soils had higher annual R,than afforested soils;R,abruptly increased after paddy fields were drained and plowed and remained distinctively high throughout the dry farming period.Laboratory incubation revealed that paddy soils had a much higher Q10 of SOC decomposition than afforested soils.Given that tem-perature was the primary controller of R,in this region,it was con-cluded that despite the stronger SOC sequestration by paddy rice cropping,its SOC was less stable than in afforested systems and might be more easily released into the atmosphere under global warming. | Jun Cui Rongjuan Zhang Naishun Bu Huabin Zhang Boping Tang Zhaolei Li Lifeng Jiang Jiakuan Chen Changming Fang | 2013 | Journal of Plant Ecology2013,6,3: | 4 |
| 6 | QTL mapping and QTL × environment interaction analysis of multi-seed pod in cultivated peanut(Arachis hypogaea L.)显示文摘To dissect the genetic mechanism of multi-seed pod in peanut, we explored the QTL/gene controlling multi-seed pod and analyzed the interaction effect of QTL and environment. Two hundred and forty eight recombinant inbred lines(RIL) from cross Silihong × Jinonghei 3 were used as experimental materials planted in 8 environments from 2012 to 2017. Three methods of analysis were performed. These included individual environment analysis, joint analysis in multiple environments, and epistatic interaction analysis for multi-seed pod QTL. Phenotypic data and best linear unbiased prediction(BLUP) value of the ratio of multi-seed pods per plant(RMSP) were used for QTL mapping. Seven QTL detected by the individual environmental mapping analysis and were distributed on linkage groups 1, 6, 9, 14, 19(2), and 21. Each QTL explained 4.42%–11.51% of the phenotypic variation in multi-seed pod, and synergistic alleles of5 QTL were from the Silihong parent. One QTL, explaining 4.93% of the phenotypic variation was detected using BLUP data, and this QTL mapped in the same interval as q RMSP19.1 detected in the individual environment analysis. Seventeen additive QTL were identified by joint analysis across multiple environments. A total of 43 epistatic QTL were detected by ICIM-EPI mapping in the multiple environment trials(MET) module, and involved 57 loci. Two main-effect QTL related to multi-seed pod in peanut were filtered. We also found that RMSP had a highly significant positive correlation with pod yield per plant(PY), and epistatic effects were much more important than additive effects. These results provide theoretical guidance for the genetic improvement of germplasm resources and further fine mapping of related genes in peanut. | Liang Wang Xinlei Yang Shunli Cui Guojun Mu Xingming Sun Lifeng Liu Zichao Li | 2019 | The Crop Journal2019,7,2: | 4 |
| 7 | Effect of Support Calcination Temperature on Ag Structure and Catalytic Activity for CO Oxidation显示文摘 | ZHANG Xiaodong DONG Han ZHAO Di WANG Yin WANG Yangang CUI Lifeng | 2016 | Chemical Research in Chinese Universities2016,32,3: | 3 |
| 8 | Adaptive mixture observation models for multiple object tracking显示文摘Multiple object tracking (MOT) poses many difficulties to conventional well-studied single object track-ing (SOT) algorithms,such as severe expansion of configuration space,high complexity of motion con-ditions,and visual ambiguities among nearby targets,among which the visual ambiguity problem is the central challenge. In this paper,we address this problem by embedding adaptive mixture observation models (AMOM) into a mixture tracker which is implemented in Particle Filter framework. In AMOM,the extracted multiple features for appearance description are combined according to their discriminative power between ambiguity prone objects,where the discriminability of features are evaluated by online entropy-based feature selection techniques. The induction of AMOM can help to surmount the incapa-bility of conventional mixture tracker in handling object occlusions,and meanwhile retain its merits of flexibility and high efficiency. The final experiments show significant improvement in MOT scenarios compared with other methods. | CUI Peng SUN LiFeng YANG ShiQiang | 2009 | Science in China(Series F)2009,52,2: | 3 |
| 9 | A functional hyperbranched binder enabling ultra-stable sulfur cathode for high-performance lithium-sulfur battery显示文摘Binders are of vital importance in stabilizing the cathodes to enhance the cycling stability of lithiumsulfur(Li-S) batteries. However, conventional binders are typically confronted with the drawback of inability for adsorbing lithium polysulfide(Li PS), thus resulting in severe active material losing and rapid capacity fading. Herein, a novel water-soluble hyperbranched poly(amidoamine)(HPAA) binder with controllable hyperbranched molecular structure and abundant amino end groups for Li-S battery is designed and fabricated, which can improve efficient adsorption for Li PS and stability of the sulfur cathodes. Besides, the strong intermolecular hydrogen bonds in HPAA binder can contribute to the structural stability of S cathode and integration of the conductive paths. Therefore, the Li-S battery with this functional binder exhibits excellent cycle performance with a capacity retention of 91% after 200 cycles at 0.1 C.Even at a high sulfur loading of 5.3 mg cm-2, a specific capacity of 601 mA h g-1 can also be achieved.Density functional theory(DFT) calculation further demonstrates that the enhanced electrochemical stability derives from the high binding energy between amino groups and LiP S and the wide electrochemical window(6.87 e V) of HPAA molecule. Based on the above all, this functional polymer will lighten a new species of binders for eco-friendly sulfur cathodes and significantly promote the practical applications of high-performance Li-S batteries. | Xiang Luo Xianbo Lu Xiaodong Chen Ya Chen Chunyang Yu Dawei Su Guoxiu Wang Lifeng Cui | 2020 | Journal of Energy Chemistry2020,29,11: | 2 |
| 10 | The long-term denudation rate of granitic regolith in Qinhuangdao, North China determined from the in situ depth profile of the cosmogenic nuclides ^(26)Al and ^(10)Be显示文摘This study quantifies the surface denudation rate of granitic regolith via the application of the in situ cosmogenic26 Al and10Be depth profile in China. The concentration ranges of26 Al and10Be in the quartz along the*3-m granitic regolith profile in Qinhuangdao are(4.9–23.1) 9 105and(2.3–36.6) 9 104atoms/g, respectively. With the exception of the surface sample, both26 Al and10Be concentrations decrease exponentially with sample depth. The Chi-square best-fitting results revealed a total denudation rate of *9 m/Ma averaged over a 103–105a timescale, which is lower than the values observed in global granitic outcrops. Compared with global datasets, the flat terrain due to the lack of tectonic activities is most likely the dominant factor that controls the local denudation process.The surface sample offsets from the theoretical cosmogenic nuclide distribution implies that the denudation rate from river basin sediment could be overestimated because of the bioturbation in the surficial soil layer. | Lifeng Cui Congqiang Liu Sheng Xu Zhiqi Zhao Chenglong Tu Taoze Liu Hu Ding | 2014 | Chinese Science Bulletin2014,59,34: | 2 |
| 11 | Nano-composite Particles Synthesized by a Hydrogen Arc Plasma显示文摘Nano-composite particles can be synthesized by a hydrogen arc plasma method, which possesses the advantages of high productivity, controllable size distribution and low electric energy consumption comparing with conventional gas condensation method. With this method, not only the nanoparticles of metals and alloys, but also the nano-composite particles with shell structure can be synthesized. The microstructures, compositions and the formation mechanism of the nano composite particles were | Zuolin CUI Zhikun ZHANG Chuncheng HAO Lifeng DONG Zhaoguo MENG and Liyan YU(Research Center of Nanostructured Materials, Qingdao Institute of Chemical Technology Qingdao 266042, China) | 1997 | Journal of Materials Science & Technology1997,13,4: | 1 |
| 12 | Metallurgical recovery of metals from electronic waste: A review显示文摘 | Jirang Cui Lifeng Zhang | 2008 | Journal of Hazardous Materials2008,,2: | 1 |
| 13 | Metallurgical recovery of metals from electronicwaste: A review 显示文摘 | Cui Jirang Zhang Lifeng | 2008 | Journal of Hazardous Materials2008,158,23: | 1 |
| 14 | Endocrine pheromones couple fat rationing to dauer diapause through HNF4αnuclear receptors显示文摘Developmental diapause is a widespread strategy for animals to survive seasonal starvation and environmental harshness.Diapaused animals often ration body fat to generate a basal level of energy for enduring survival.How diapause and fat rationing are coupled,however,is poorly understood.The nematode Caenorhabditis elegans excretes pheromones to the environment to induce a diapause form called dauer larva.Through saturated forward genetic screens and CRISPR knockout,we found that dauer pheromones feed back to repress the transcription of ACOX-3,MAOC-1,DHS-28,DAF-22(peroxisomalβ-oxidation enzymes dually involved in pheromone synthesis and fat burning),ALH-4(aldehyde dehydrogenase for pheromone synthesis),PRX-10 and PRX-11(peroxisome assembly and proliferation factors).Dysfunction of these pheromone enzymes and factors relieves the repression.Surprisingly,transcription is repressed not by pheromones excreted but by pheromones endogenous to each animal.The endogenous pheromones regulate the nuclear translocation of HNF4αfamily nuclear receptor NHR-79 and its co-receptor NHR-49,and,repress transcription through the two receptors.The feedback repression maintains pheromone homeostasis,increases fat storage,decreases fat burning,and prolongs dauer lifespan.Thus,the exocrine dauer pheromones possess an unexpected endocrine function to mediate a peroxisome-nucleus crosstalk,coupling dauer diapause to fat rationing. | Cheng Gao Qi Li Jialei Yu Shiwei Li Qingpo Cui Xiao Hu Lifeng Chen Shaobing O.Zhang | 2021 | Science China(Life Sciences)2021,64,12: | 1 |
| 15 | A visible light active photocatalyst: Nano-composite with Fe-doped anatase TiO 2 nanoparticles coupling with TiO 2 (B) nanobelts显示文摘 | Lifeng Cui Feng Huang Mutong Niu Lingwei Zeng Ju Xu Yuansheng Wang | 2010 | Journal of Molecular Catalysis A Chemical2010,,1: | 1 |
| 16 | SnO 2 nanoparticles@polypyrrole nanowires composite as anode materials for rechargeable lithium-ion batteries显示文摘 | Lifeng Cui Jian Shen Fangyi Cheng Zhanliang Tao Jun Chen | 2010 | Journal of Power Sources2010,,: | 1 |
| 17 | Metallurgical recovery of metals from electronic waste: A review显示文摘 | Jirang Cui Lifeng Zhang | 2008 | Journal of Hazardous Materials2008,,2: | 1 |
| 18 | Synthesis and visible light photocatalysis of Fe-doped TiO 2 mesoporous layers deposited on hollow glass microbeads显示文摘 | Lifeng Cui Yuansheng Wang Mutong Niu Guoxin Chen Yao Cheng | 2009 | Journal of Solid State Chemistry2009,,10: | 1 |
| 19 | Honeycomb-like g-C_(3)N_(4)/CeO_(2)-x nanosheets obtained via one step hydrothermal-roasting for efficient and stable Cr(Ⅵ) photo-reduction显示文摘Graphitic carbon nitride(g-C_(3)N_(4))-based materials are regarded as one of the most potential photocatalysts for utilizing solar energy.In this work,we reported a facile one step in-situ hydrothermal-roasting method for preparing honeycomb-like g-C_(3)N_(4)/CeO_(2) nanosheets with abundant oxygen vacancies(g-C_(3)N_(4)/CeO_(2)-x).The hydrothermal-roasting and incomplete-sealed state can(i)generate an in-situ reducing atmosphere(CO,N2,NH3) to tune the concentration of oxygen vacancies in CeO_(2);(ii) beneficial to prevent continuous growth of g-C_(3)N_(4) and results in honeycomb-like g-C_(3)N_(4)/CeO_(2)-x hybrid nanosheets.What is more,the g-C_(3)N_(4)/CeO_(2)-x photocatalyst exhibited extended photoresponse range,increased specific surface area and obviously enhanced separation efficiency of photogenerated electron-hole pairs.As a proof-of-concept application,the optimized g-C_(3)N_(4)/CeO_(2)-xnanosheets could achieve 98% removal efficiency for Cr(Ⅵ) under visible light irradiation(λ≥420 nm)within 2.5 h,which is significantly better than those of pure g-C_(3)N_(4) and CeO_(2).This work provides a new idea for more rationally designing and constructing g-C_(3)N_(4)-based catalysts for efficient extended photochemical application. | Yanan Liu Zhangfeng Shen Jialing Song Huilan Qi Chaochuang Yin Xuhui Zou Qineng Xia Lifeng Cui Xi Li Yangang Wang | 2020 | Chinese Chemical Letters2020,31,10: | 1 |
| 20 | Bi-channel near-and far-field optical vortex generator based on a single plasmonic metasurface显示文摘With the recent development of the metasurface,generating an optical vortex in optical far or near fields is realized in various ways.However,to generate vortices in both the near and far fields simultaneously is still a challenge,although it has great potential in the future compact and versatile photonic system.Here,a bi-channel optical vortex generator in both the near and far fields is proposed and demonstrated within a single metasurface,where the surface plasmon vortex and the far-field optical vortex can be simultancously generated under circularly polarized light.The ability of generating vortices with arbitrary topological charges is experimentally demon-strated,which agrces well with simulations.This approach provides great freedom to integrate different vortex generators in a single device and ofers new opprtunities for integrated optical communications,trapping,and other related fields. | QIAO JIANG YANJUN BAO JING LI LIFENG TIAN ToNG CUI LIN SUN BOWEN DU BOWEN LI BENFENG BAI JIA WANG HONGBO SUN Bo SHEN HAN ZHANG FENG LIN XING ZHU ZHEYU FANG | 2020 | Photonics Research2020,8,6: | 1 |