|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Effect of Phosphorus Grain Boundaries Segregation and Precipitations on Mechanical Properties for Ti-IF Steel after Recrystallization Annealing显示文摘The cold-rolled(75% reduction ratio) Ti-IF(interstitial-free) steels of 1 mm thickness were recrystallized by annealing at 810°C for different times.The microstructure,mechanical properties and phosphorus segregation at grain boundary were investigated by means of optical microscopy(OM),tensile testing and field emission transmission electron microscopy(FE-TEM).It was observed that recrystallization was completed after annealing at 810°C for 180 s.The yield strength and tensile strength decreased as annealing time increased.The FE-TEM observation showed that after the annealing treatment,the grain boundary was broadened and the dislocations with higher density of phosphorus atoms and phosphide at grain boundaries became evident.The amount of phosphorus segregated at grain boundaries increased with annealing time. | Xinli Song Zexi Yuan Juan Jia Di Wang Pinghe Li Zhaojun Deng | 2010 | Journal of Materials Science & Technology2010，26，9： | 2 |
| 2 | Enhance the delivery of light energy ultra-deep into turbid medium by controlling multiple scattering photons to travel in open channels显示文摘Multiple light scattering is considered as the major limitation for deep imaging and focusing in turbid media.In this paper,we present an innovative method to overcome this limitation and enhance the delivery of light energy ultradeep into turbid media with significant improvement in focusing.Our method is based on a wide-field reflection matrix optical coherence tomography(RM-OCT).The time-reversal decomposition of the RM is calibrated with the Tikhonov regularization parameter in order to get more accurate reversal results deep inside the scattering sample.We propose a concept named model energy matrix,which provides a direct mapping of light energy distribution inside the scattering sample.To the best of our knowledge,it is the first time that a method to measure and quantify the distribution of beam intensity inside a scattering sample is demonstrated.By employing the inversion of RM to find the matched wavefront and shaping with a phase-only spatial light modulator,we succeeded in both focusing a beam deep(~9.6 times of scattering mean free path,SMFP)inside the sample and increasing the delivery of light energy by an order of magnitude at an ultra-deep(~14.4 SMFP)position.This technique provides a powerful tool to understand the propagation of photon in a scattering medium and opens a new way to focus light inside biological tissues. | Jing Cao Qiang Yang Yusi Miao Yan Li Saijun Qiu Zhikai Zhu Pinghe Wang Zhongping Chen | 2022 | Light(Science & Applications)2022，11，5： | 2 |
| 3 | Research on Retained Austenite for Advanced Aluminum-containing Hot-rolled TRIP Steel显示文摘A new type of hot-rolled transformation induced plasticity (TRIP) steel with 2.3%AI was developed to replaceconventional Si-bearing TRIP steel to improve surface quality of the steel sheet. The relationship between retainedaustenite volume fraction and hot-rolling processing was researched by Gleeble-2000 thermo-dynamic test for theAl-bearing steel. The experimental result showed that aluminum played an important role on retaining austeniteand the volume fraction increased from 4.4% to 7.5% as coiling temperature increased from 350°C to 450°C, whilecoiling temperature had a stronger effect on retaining austenite than finishing rolling temperature. | Yu CHEN Guoyi TANG Fangyu CHEN Pinghe LI Sunbing ZHOU | 2005 | Journal of Materials Science & Technology2005，21，6： | 2 |
| 4 | Effect of intercritical quenching on microstructure and mechanical properties of ultra low carbon heavy steel plate 显示文摘 | Dehui Zou Zhifang Peng Pinghe Li | 2011 | New Materials and Advanced Materials2011，，： | 1 |
| 5 | Effect of niobium on the microstrueture and mechanical properties of low carbon steel plate with intercritical quenching 显示文摘 | Dehui Zou Zhifang Peng Pinghe Li | 2011 | New Materials and Advanced Materials2011，，： | 1 |
| 6 | Effect of intercritical quenching on microstmcture and mechanical properties of ultra low carbon heavy steel plate 显示文摘 | Zou Dehui Peng Zhifang Li Pinghe | 2011 | New Materials and Advanced Materials2011，152，： | 1 |
| 7 | Effect of niobium on the microstructure and mechanical properties of low carbon steel plate with intercritical quenching 显示文摘 | Dehui Zou Zhifang Peng Pinghe Li | 2010 | New Materials and Advanced Materials2010，152，： | 1 |
| 8 | Optimization framework for process scheduling of operation-dependent automobile assembly lines显示文摘 | Qiuhua Tang Jie Li Christodoulos A. Floudas Mingxing Deng Yunbing Yan Zhongmin Xi Pinghe Chen Jianyi Kong | 2012 | Optimization Letters2012，，4： | 1 |
| 9 | Influence of Mo content on microstructure and mechanical properties of high strength pipeline steel显示文摘 | Kong Junhua Zhen Lin Guo Bin Li Pinghe Wang Aihua Xie Changsheng | 2004 | Materials and Design2004，，8： | 1 |
| 10 | IN VITRO IMMUNOMODULATING EFFECTS OF SERUM-BIOMATERIAL INTERACTION显示文摘This is to evaluate a immunomodulating effect of biomaterial on humoral and cellular immunity and complement activation in vitro. Polyurethan(PU )、Polyethersufone (PES )、Polypropylene (PP)、Polyvinyl chlorid (PVC)、Siliconerubber(SR)、Polyester fibre (PETF)、Biocollagen(BC)、Yak pericardium (YP) andCellulose acetate (CA) were contacted separately with normal human serum orblood, to observe the complement and immunoglobulin changes in serum and lymphocyte transforming activity in blood. Relationshps between these materials andimmunological changes had been investigated. The result showed a change of a CH50induced by these material in vitro serum culture. The order of the mean values wascontrol>BC>PP>PES>SR>PU>YP>PETF>CA. Same material showed insignificant change of CH50 in contact with serum during different periods. Immunoglobin G showed a marked difference among any kind of material,the order ofthe mean values was control>BC>PP>PES>SR>PU>YP>PETF. Except thatlymphocyte transformation rate was lightly decreased by PU and increased by CA,all test materials showed insignifcant change compared with control group in theblood culture. Preliminary expermental studies have demonstrated that CA can enhanced complement activation and lymphocyte transformation activity. | Zhu Minghua Wu Zengshu Zeng Yi Huang Pinghe Jiang Li(Sichuan Institue of Labour Hygiene andOccupation Diseases,Chengdu 610041,China) | 1998 | Chinese Journal of Biomedical Engineering(English Edition)1998，7，1： | 0 |
| 11 | Microstructure Features with Ultrafined and Purified Grains for Si-Mn Hot-rolling TRIP Steel显示文摘The advanced hot-rolled transformation induced plasticity (TRIP) steel with high tensile strength of 775 MPa,high elongation of 29% and low ductile-brittle transmission temperature less than -80°C has been developed inlaboratory based on the common silicon and manganese chemical composition. The experimental results showed thatthe microstructures were featured with ultra fine grain size less than 5 μm, appropriate retained austenite volumefraction around 11.8% and purified ferrite grain, which may result in well balanced mechanical properties for thesteel. | Yu CHEN Guoyi TANG Feipeng LI Yu ZHANG Xiao CHE Pinghe LI Wei LIU Qing LI | 2005 | Journal of Materials Science & Technology2005，21，6： | 0 |
| 12 | Improved wavelet hierarchical threshold filter method for optical coherence tomography image de-noising显示文摘According to the speckle feature in Optical coherence tomography(OCT),images with speckleindicate not only noise but also signals,an improved wavelet hierarchical threshold filter(IWHTF)method is proposed.At first,a modified hierarchical threshold-selected algorithm isused to prevent signals from being removed by asssing suitable thresholds for different noiselevels,Then,an improved wavelet threshold function based on two traditional threshold fumnc.tions is proposed to trade-ff betwen speckle removing and sharpness degradation.The de-noising results of an OCT finger skin image shows that the IWHTF method obtains betterobjective evaluation metrics and visual image quality improvement,Whenαa=0.2,β=5.0 andK=1.2,the improved method can achieve 9.58 dB improvement in signal-to-noise ratio,withsharpnesdegraded by 3.81%. | Jing Cao Pinghe Wang Bo Wu Guohua Shi Yan Zhang Xiqi Li Yudong Zhang Yong Liu | 2018 | Journal of Innovative Optical Health Sciences2018，，3： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员