|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Three-year results of small incision lenticule extraction and wavefront-guided femtosecond laser-assisted laser in situ keratomileusis for correction of high myopia and myopic astigmatism显示文摘AIM: To compare and calculate the 3-year refractive results, higher-order aberrations(HOAs), contrast sensitivity(CS) and dry eye parameters after small incision lenticule extraction(SMILE) and wavefront-guided femtosecond laser-assisted laser in situ keratomileusis(FS-LASIK) for correction of high myopia and myopic astigmatism.METHODS: In this prospective, non-randomized comparative study, 78 eyes with spherical equivalent(SE) of-8.11±1.09 diopters(D) received a SMILE surgery, and 65 eyes with SE of-8.05±1.12 D received a wavefront-guided FS-LASIK surgery with the Visu Max femtosecond laser(Carl Zeiss Meditec, Jena, Germany) for flap cutting. Visual acuity, manifest refraction, CS, HOAs, ocular surface disease index(OSDI) and tear break-up time(TBUT) were evaluated during a 3-year follow-up.RESULTS: The difference of uncorrected distance visual acuity(UDVA) postoperatively was achieved at 1 mo and at3 mo, whereas the difference of the mean UDVA between two groups at 3 y were not statistically significant(t=-1.59,P=0.13). The postoperative change of SE was 0.89 D in the FS-LASIK group(t=5.76, P=0.00), and 0.14 D in the SMILE group(t=0.54, P=0.59) from 1 mo to 3 y after surgery.At 3-year postoperatively, both HOAs and spherical aberrations in the SMILE group were obviously less than those in the FS-LASIK group(P=0.00), but the coma root mean square(RMS) was higher in the SMILE group(0.59±0.26) than in the FS-LASIK group(0.29±0.14, P=0.00).The mesopic CS values between two groups were not statistically significant at 3 y postoperatively. Comparedwith the FS-LASIK group, lower OSDI scores and longer TBUT values were found in the SMILE group at 1 mo and 3 mo postoperatively. With regard to safety, no eye lost any line of CDVA in both groups at 3 y after surgery. CONCLUSION: Both SMILE and wavefront-guided FSLASIK procedures provide good visual outcomes. Both procedures are effective and safe, but SMILE surgery achieve more stable long-term refractive outcome and better control of early postoperative dry eye as compared to FS-LASIK. | Li-Kun Xia Jing Ma He-Nan Liu Ce Shi Qing Huang | 2018 | International Journal of Ophthalmology(English edition)2018，11，3： | 16 |
| 2 | The Change of the Inlet Geometry of a Centrifugal Compressor Stage and its Influence on the Compressor Performance显示文摘The impact on the compressor performance is important for designing the inlet pipe of the centrifugal compressor of a vehicle turbocharger with different inlet pipes. First, an experiment was performed to determine the compressor performance from three cases: a straight inlet pipe, a long bent inlet pipe and a short bent inlet pipe. Next, dynamic sensors were installed in key positions to collect the sign of the unsteady pressure of the centrifugal compressor. Combined with the results of numerical simulations, the total pressure distortion in the pipes, the pressure distributions on the blades and the pressure variability in the diffuser are studied in detail. The results can be summarized as follows: a bent pipe results in an inlet distortion to the compressor, which leads to performance degradation, and the effect is more apparent as the mass flow rate increases. The distortion induced by the bent inlet is not only influenced by the distance between the outlet of the bent section and the leading edge of the impeller but also by the impeller rotation. The flow fields in the centrifugal impeller and the diffuser are influenced by a coupling effect produced by the upstream inlet distortion and the downstream blocking effect from the volute tongue. If the inlet geometry is changed, the distributions and the fluctuation intensities of the static pressure on the main blade surface of the centrifugal impeller and in the diffuser are changed accordingly. | WANG Leilei YANG Ce ZHAO Ben LAO Dazhong MA Chaochen LI Du | 2013 | Journal of Thermal Science2013，22，3： | 13 |
| 3 | Potential of multi-pass ECAP on improving the mechanical properties of a high-calcium-content Mg-Al-Ca-Mn alloy显示文摘In this study,the multi-pass equal channel angular pressing(ECAP)was employed on a high-calcium-content Mg-Al-Ca-Mn alloy to tailor its microstructure and mechanical properties.The obtained results showed that the network-shaped Mg2Ca and(Mg,Al)2Ca eutectic compounds in as-cast alloy were gradually crushed into ultra-fine particles after ECAP,which exhibited a bimodal particle size distribution and most aggregated at original grain boundaries.Dynamic recrystallization(DRX)of α-Mg occurred during hot deformation via a particle stimulated mechanism,and the almost complete DRX with an average grain size around 1.5μm was obtained after 12p-ECAP.Moreover,abundant nano-sized acicular and spherical precipitates were dynamically precipitated withinα-Mg grains during ECAP.Tensile test results indicated that the maximum strength and ductility were acquired for 12p-ECAP alloy with ultimate tensile strength of 372 MPa and fracture elongation of 8%.The enhanced strength of the alloy could be ascribed to fine DRX grains,ultra-fine Ca-containing particles and dynamically precipitated nano-precipitates,while the improved ductility was mainly due to the refined and homogeneous microstructure,and weak texture with high average Schmid factors. | He Huang Huan Liu Ce Wang Jiapeng Sun Jing Bai Feng Xue Jinghua Jiang Aibin Ma | 2019 | Journal of Magnesium and Alloys2019，7，4： | 10 |
| 4 | Osteoclast-derived apoptotic bodies couple bone resorption and formation in bone remodeling显示文摘Bone remodeling is precisely coordinated by bone resorption and formation.Apoptotic osteoclasts generate large amounts of apoptotic bodies(ABs)marking the end of the bone resorption phase,whereas the functions of osteoclast-derived ABs remain largely unknown.Here,we identified the molecular profile of ABs derived from osteoclasts at distinct differentiation stages and investigated their corresponding functions.ABs were isolated from apoptotic bone marrow macrophages,preosteoclasts,and mature osteoclasts induced by staurosporine.Proteomic signature analysis with liquid chromatography-tandem mass spectrometry suggested marked protein cargo differences among the different ABs.Further bioinformatic analysis showed that the proteomic signatures of the ABs were highly similar to those of their parental cells.Functionally,pOC-ABs induced endothelial progenitor cell differentiation and increased CD31hiEmcnhi endothelial cell formation in a murine bone defect model via their PDGF-BB cargo.mOC-ABs induced osteogenic differentiation of mesenchymal stem cells and facilitated osteogenesis via RANKL reverse signaling.In summary,we mapped the detailed proteomic landscapes of ABs derived from osteoclasts and showed that their potential biological roles are important in coupling bone formation with resorption during bone remodeling. | Qinyu Ma Mengmeng Liang Yutong Wu Fei Luo Zaisong Ma Shiwu Dong Jianzhong Xu Ce Dou | 2021 | Bone Research2021，9，1： | 8 |
| 5 | Improving toughness of a Mg_(2)Ca-containing Mg-Al-Ca-Mn alloy via refinement and uniform dispersion of Mg_(2)Ca particles显示文摘In this work,two wrought Mg-3.66Al-4.25Ca-0.43 Mn(wt%)alloys with different morphology and distribution of Mg_(2)Ca particles were fabricated by hot extrusion and multi-pass(32)equal channel angular pressing(ECAP).The as-extruded alloy exhibits a banded microstructure with alternately arranged Mg_(2)Ca particle bands,fine α-Mg dynamically recrystallized(DRX)grain bands,and coarse α-Mg deformed grain bands.The Mg_(2)Ca bands are composed of broken Mg_(2)Ca particles which are aggregated and aligned along extrusion direction.The microstructure of ECAP alloy contains complete α-Mg DRX grains and refined Mg_(2)Ca particles which are dispersedly distributed at grain boundaries.Tensile test results show that the as-extruded alloy possesses high ultimate tensile strength(UTS)of 420 MPa and poor fracture elongation of 7%,while the ECAP alloy exhibits improved toughness with UTS of 347 MPa and fraction elongation of 16%.The higher strength of as-extruded alloy is mainly ascribed to the contribution of coarse deformed grains with strong texture,and its poor toughness is resulted from the formation of Mg_(2)Ca bands within which microcracks could form and extend rapidly.On the contrary,the refined and dispersedly distributed Mg_(2)Ca particles are effective to retard crack initiation and impede crack propagation,thereby enhancing the toughness of ECAP alloy significantly. | Huan Liu Chao Sun Ce Wang Yuhua Li Jing Bai Feng Xue Aibin Ma Jinghua Jiang | 2020 | Journal of Materials Science & Technology2020，59，24： | 7 |
| 6 | Wet-chemistry synthesis of cobalt carbide nanoparticles as highly active and stable electrocatalyst for hydrogen evolution reaction显示文摘转变金属碳化物(TMC ) nanomaterials 正在答应选择到磅,并且广泛地为电气化学的氢进化反应被用作异构的 electrocatalysts (她的) 。在这个工作,综合的导致溴化物的湿化学的策略公司 2 C nanoparticles (NP ) 被开发。如此的 NP 展出了高 electrocatalytic 活动(= 为 j = 的 181 mV 10 | Siwei Li Ce Yang Zhen Yin Hanjun Yang Yifu Chen Lili Lin Mengzhu Li Weizhen Li Gang HU Ding Ma | 2017 | Nano Research2017，10，4： | 7 |
| 7 | Fe5C2 nanoparticles as low-cost HER electrocatalyst:the importance of Co substitution显示文摘Constructing and understanding the doping effect of secondary metal in transition metal carbide(TMC)catalysts is pivotal for the design of low-cost hydrogen evolution reaction(HER) electrocatalysts. In this work, we developed a wet-chemistry strategy for synthesizing Co-modified Fe_5C_2 nanoparticles((Fe_(1-x)Cox)_5C_2 NPs) as highly active HER electrocatalysts in basic solution. The structure of(Fe_(1-x)Cox)_5C_2 NPs was characterized by X-ray diffraction(XRD), extended X-ray absorption fine structure spectra(EXAFS) and scanning/transmission electron microscopy(S/TEM), indicating that the isomorphous substitution of cobalt in the lattice of Fe_5C_2.(Fe_(0.75) Co_(0.25))_5C_2 exhibited the best HER activity(174 mV for j = -10 mA/cm^2). Computational calculation results indicate that Co provides the most active site for HER. X-ray adsorption spectra(XAS) studies further suggested that the electron transfer in Fe–C bonds are enhanced by the substitution of Co, which modulates the hydrogen adsorption on the adjacent electronic-enriched carbon, and therefore promotes HER activity. Our results affirm the design of lowcost bimetallic TMCs based HER catalysts. | Siwei Li Pengju Ren Ce Yang Xi Liu Zhen Yin Weizhen Li Hanjun Yang Jian Li Xiaoping Wang Yi Wang Ruochen Cao Lili Lin Siyu Yao Xiaodong Wen Ding Ma | 2018 | Science Bulletin2018，63，20： | 6 |
| 8 | Microstructure and Mechanical Properties of Mg–RE–TM Cast Alloys Containing Long Period Stacking Ordered Phases: A Review显示文摘Casting magnesium alloys hold the greatest share of magnesium application products due to their short processing period, low cost and near net shape forming. Compared with conventional commercial magnesium alloys or other Mg–RE-based alloys, the novel Mg–RE–TM cast alloys with long period stacking ordered(LPSO) phases usually possess a higher strength and are promising candidates for aluminum alloy applications. Up to now, two ways: alloying design and casting process control(including subsequent heat treatments), have been predominantly employed to further improve the mechanical properties of these alloys. Alloying with other elements or ceramic particles could alter the solidifi cation pattern of alloys, change the morphology of LPSO phases and refi ne the microstructures. Diff erent casting techniques(conventional casting, rapidly solidifi cation, directional solidifi cation, etc.) introduce various microstructure characteristics, such as dendritic structure, nanocrystalline, metastable phase, anisotropy. Further heat treatments could activate the transformation of various LPSO structures and precipitation of diverse precipitates. All these evolutions exert great impacts on the mechanical properties of the LPSO-containing alloys. However, the underlying mechanisms still remain a subject of debate. Therefore, this review mainly provides the state of the art of the casting magnesium alloys research and the accompanying challenges and summarizes some topics that merit future investigation for developing high-performance Mg–RE–TM cast alloys. | Huan Liu He Huang Jia-Peng Sun Ce Wang Jing Bai Ai-Bin Ma Xian-Hua Chen | 2019 | Acta Metallurgica Sinica(English Letters)2019，32，3： | 6 |
| 9 | High-efficiency 50 W burst-mode hundred picosecond green laser显示文摘We report high-energy,high-efficiency second harmonic generation in a near-infrared all-solid-state burst-mode picosecond laser at a repetition rate of 1 kHz with four pulses per burst using a type-I noncritical phase-matching lithium triborate crystal.The pulses in each burst have the same time delay(~1 ns),the same pulse duration(~100 ps)and different relative amplitudes that can be adjusted separately.A mode-locked beam from a semiconductor saturable absorber mirror is pulse-stretched,split into seed pulses and injected into a Nd:YAG regenerative amplifier.After the beam is reshaped by aspheric lenses,a two-stage master oscillator power amplifier and 4f imaging systems are applied to obtain a high power of^100 W.The 532 nm green laser has a maximum conversion efficiency of 68%,an average power of up to 50 W and a beam quality factor M^2 of 3.5. | Ning Ma Meng Chen Ce Yang Shang Lu Xie Zhang Xinbiao Du | 2020 | High Power Laser Science and Engineering2020，8，1： | 5 |
| 10 | Sensor radiation interception risk control in target tracking显示文摘This paper is mainly on the problem of radiation interception risk control in sensor network for target tracking.Firstly,the sensor radiation interception risk is defined as the product of the interception probability and the cost caused by the interception.Secondly,the radiation interception probability model and cost model are established,based on which the calculation method of interception risk can be obtained.Thirdly,a sensor scheduling model of radiation risk control is established,taking the minimum interception risk as the objective function.Then the Hungarian algorithm is proposed to obtain sensor scheduling scheme.Finally,simulation experiments are mad to prove the effectiveness of the methods proposed in this paper,which shows that compared with the sensor radiation interception probability control method,the interception risk control method can keep the sensor scheduling scheme in low risk as well as protect sensors of importance in the sensor network. | Ce Pang Gan-lin Shan Wei-ning Ma Gong-guo Xu | 2020 | Defence Technology(防务技术)2020，16，3： | 4 |
| 11 | Size,morphology,and composition of lunar samples returned by Chang'E-5 mission显示文摘This study focuses on the physical and chemical properties of surficial lunar regolith(LR)samples returned from the Moon by the Chang’E-5(CE-5)mission.Insights regarding the effect of a new sampling geological site on the surficial lunar sample CE5 C0400 were illustrated using nondestructive techniques such as laser diffractometry coupled with image analysis,X-ray computed tomography,and field emission scanning electron microscopy equipped with energy dispersive spectroscopy,and Xray diffraction combined with Rietveld refinement.From the characterization analyses,the CE-5 sampling site in the northeastern Oceanus Procellarum on the Moon yields a unique collection of relatively regular-shaped and fine basalt-dominated particles.The median grain size D_(50) is(55.24±0.96)μm,falling within the relatively low end of the range of the Apollo lunar returned samples.The coefficient of uniformity C_(u)of 15.1 and the coefficient of curvature C_(c)of 1.7 could classify CE5 C0400 to be well-graded.The minerals in CE5 C0400 comprise approximately 44.5%pyroxene,30.4%plagioclase,3.6%olivine,and6.0%ilmenite.There is a relatively low content of approximately 15.5%glass phase in the CE-5 lunar sample.From the results,we deduce that the CE-5 LR structure could have mainly resulted from micrometeoroid impacts to achieve such a high level of maturity. | Hui Zhang Xian Zhang Guang Zhang Keqi Dong Xiangjin Deng Xiaosong Gao Yaodong Yang Yuan Xiao Xiao Bai Kaixin Liang Yiwei Liu Wenbin Ma Shaofan Zhao Ce Zhang Xiaojing Zhang Jian Song Wei Yao Hong Chen Weihua Wang Zhigang Zou Mengfei Yang | 2022 | Science China(Physics,Mechanics & Astronomy)2022，65，2： | 4 |
| 12 | The safety and efficacy of modified minimally invasive trabeculectomy for the treatment of primary chronic angle-closure glaucoma显示文摘Background: Primary chronic angle-closure glaucoma(PCACG) is one of the main types of glaucoma in China. Trabeculectomy is the most commonly used glaucoma filtration surgery for glaucoma in the world. Conventional trabeculectomy is prone to anesthesia-related complications intraoperative and operationrelated complications postoperative in PCACG treatment. Modified minimally invasive trabeculectomy maybe can reduce the incidence of complications.Methods: We conducted a prospective case series study and performed modified fornix-based trabeculectomy in 27 patients(30 eyes) under topical anesthesia; we then observed intraoperative anesthesia and cooperation ef ect, intraoperative and postoperative complications, preoperative and postoperative visual acuity, intraocular pressure(IOP), visual field, and the use of ocular hypotensive drugs. The patients were followed up for at least 12 months.Results: All operations were completed successfully with no intraoperative complications. All 27 patients(30 eyes) were followed up for at least 12 months. No significant decrease in visual acuity was observed at days 1 or 7 and at months 1, 3, 6, and 12 after operation; however, a signii cant decrease in IOP was observed at days 1 and 7 and at months 1, 3, 6, and 12 after operation. Moreover, no significant progression in visual field mean defect was observed at month 12 after operation, and the number of ocular hypotensive drugs required was significantly reduced at months 6 and 12 after operation. By month 12 after operation, the overall success rate was 93.33%(28/30).Conclusions: Modii ed minimally invasive trabeculectomy is safe and ef ective for the treatment of PCACG. | Zhenggen Wu Chukai Huang Ce Zheng Yuqiang Huang Wanqi Zhang Di Ma | 2015 | Eye Science2015，30，4： | 3 |
| 13 | Forced Responses on a Radial Turbine with Nozzle Guide Vanes显示文摘Radial turbines with nozzle guide vanes are widely used in various size turbochargers.However,due to the interferences with guide vanes,the blades of impellers are exposed to intense unsteady aerodynamic excitations,which cause blade vibrations and lead to high cycle failures(HCF).Moreover,the harmonic resonance in some frequency regions are unavoidable due to the wide operation conditions.Aiming to achieve a detail insight into vibration characteristics of radial flow turbine,a numerical method based on fluid structure interaction(FSI) is presented.Firstly,the unsteady aerodynamic loads are determined by computational fluid dynamics(CFD).And the fluctuating pressures are transformed from time domain to frequency domain by fast Fourier-transform(FFT).Then,the entire rotor model is adopted to analyze frequencies and mode shapes considering mistuning in finite element(FE) method.Meanwhile,harmonic analyses,applying the pressure fluctuation from CFD,are conducted to investigate the impeller vibration behavior and blade forced response in frequency domain.The prediction of the vibration dynamic stress shows acceptable agreement to the blade actual damage in consistent tendency. | LIU Yixiong YANG Ce MA Chaochen LAO DaZhong | 2014 | Journal of Thermal Science2014，23，2： | 3 |
| 14 | 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 |
| 15 | The characteristic and dynamic electrocardiogram changes on hyperkalemia in a hemodialysis patient with heart failure:a case report显示文摘Hyperkalemia,usually associated with predisposing chronic diseases as heart failure(HF),severe kidney disease or diabetes mellitus(DM),[1]is defined as an elevation of potassium concentration more than 5.5 mmol/L,[2]. | Rui ZHAO Xin HAO Fei WANG Jing FENG Jing PAN Ce JING Ming-Ren MA Yan LIU Ling MA Xiao-Qing CAI | 2022 | Journal of Geriatric Cardiology2022，19，2： | 2 |
| 16 | Complete genomes of two clinical Staphylococcus aureus strains:evidence for the rapid evolution of virulence and drug resistance显示文摘 | Holden MT Feil EJ Lindsay JA Peacock SJ Day NP Enright MC Foster TJ Moore CE Hurst L Atkin R Barron A Bason N Bentley SD Chillingworth C Chillingworth T Churcher C Clark L Corton C Cronin A Doggett J Dowd L Feltwell T Hance Z Harris B Hauser H Holroyd S Jagels K James KD Lennard N Line A Mayes R Moule S Mungall K Ormond D Quail MA Rabbinowitsch E Rutherford K Sanders M Sharp S Simmonds M Stevens K Whitehead S Barrell BG Spratt BG Parkhill J | 2004 | Proc Natl Acad Sci USA2004，101，26： | 1 |
| 17 | Issues of concern regarding the use of hypertonichaypcroncotic fluid resuscitation of hemorrhagic hypotertsion 显示文摘 | Dubick MA Bmttig SP Wade CE | 2006 | Shock2006，25，： | 1 |
| 18 | Arthroscopic meniscal repair using an exogenous fibrin clot显示文摘 | Henning CE Lynch MA Yearout KM | 1990 | Clin Orthop Relat Res1990，，252： | 1 |
| 19 | Regenarating the heart显示文摘 | Laflamme MA Murry CE | 2005 | Nat Biotechnol2005，23，7： | 1 |
| 20 | Transient inhibition of Thl-type cytokine production by CD4 T cells in hepatitis B core antigen immunized mice is mediated by regulatory T cells显示文摘 | Chichester JA Feitelson MA Calkins CE | 2006 | Im- munology2006，118，4： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员