|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Effect of surface recrystallization on the creep rupture property of a single-crystal superalloy显示文摘The effect of surface recrystallization by heating after shot-peening on the creep rupture property and fracture behavior of a single-crystal superalloy was investigated.The results show that the creep rupture property of the single-crystal superalloy was greatly influenced by surface recrystallization.A recrystallized surface layer with a depth of 101μm resulted in a decrease in creep rupture life by nearly 50%,and an almost linear reduction of creep rupture life was observed with the increase of recrystallization depth.A lower strength of the recrystallized layer,inhomogeneous deformation between the recrystallized layer and the matrix,and stress concentration caused by notch effect resulted in the decrease in creep rupture life of the single-crystal superalloy. | ZHANG Bing LIU Changkui LU Xin TAO Chunhu JIANG Tao | 2010 | Rare Metals2010，29，4： | 10 |
| 2 | Statistical Distributions of Partial Discharges in Oil-paper Insulation Under AC-DC Combined Voltages显示文摘 | LI Jian JIANG Tianyan HE Zhiman CHENG Changkui BAO Lianwei | 2012 | 高电压技术2012，38，8： | 5 |
| 3 | Multi-scale validation strategy for satellite albedo products and its uncertainty analysis显示文摘Coarse-resolution satellite albedo products are important for climate change and energy balance research because of their capability to characterize the spatiotemporal patterns of land surface parameters at both the regional and global scales. The accuracy of coarse-resolution products is usually assessed via comparison with in situ measurements. The key issue in the comparison of remote sensing observations with in situ measurements is scaling and uncertainty. This paper presents a strategy for validating 1-km-resolution remote sensing albedo products using field measurements and high-resolution remote sensing observations. Field measurements were collected to calibrate the high-resolution(30 m) albedo products derived from HJ-1a/b images. Then, the calibrated high-resolution albedo maps were resampled(i.e., upscaled) to assess the accuracy of the coarse-resolution albedo products. The samples of field measurements and high-resolution pixels are based on an uncertainty analysis. Two types of coarse-resolution albedo datasets, from global land surface satellite(GLASS) and moderate-resolution imaging spectroradiometer(MODIS), are validated over the middle reaches of the Heihe River in China. The results indicate that the upscaled HJ(Huan Jing means environment in Chinese and this refers to a satellite constellation designed for environment and disaster monitoring by China) albedo, which was calibrated using field measurements, can provide accurate reference values for validating coarse-resolution satellite albedo products. However, the uncertainties in the upscaled HJ albedo should be estimated, and pixels with large uncertainties should be excluded from the validation process. | PENG JingJing LIU Qiang WEN JianGuang LIU QinHuo TANG Yong WANG LiZhao DOU BaoCheng YOU DongQin SUN ChangKui ZHAO XiaoJie FENG YouBin SHI Jian | 2015 | Science China Earth Sciences2015，58，4： | 5 |
| 4 | Recrystallization of SRR99 single-crystal superalloy: Kinetics and microstructural evolution显示文摘As-cast SRR99 specimens were shot-peened and then annealed at 1250 and 1300°C for different times to investigate the kinetics of recrystallization.It was found that the relationship between annealing time and volume fraction of recrystallized grains could be described by the Johnson-Mehl-Avrami equation.Based on the kinetics analysis of the recrystallization process,the apparent activation energy for recrystallization was determined.In addition,the microstructural evolution during the recrystallization process at 1300°C was studied.Inwards,recrystallization first occurs in the dendritic core regions at the shot-peened surface.With the dissolution of coarse γ' particles in the interdendritic regions,the recrystallized grain boundaries move through the interdendritic regions.Finally,the fully developed grains nearly have a uniform depth.The recrystallization process at the shot-peened surface is similar to that of wrought materials,which includes nucleation of recrystallization,growth of recrystallized nuclei into the matrix,and growth of recrystallized grains by swallowing up each other. | ZHANG Bing LIU Changkui HE Yuhuai TAO Chunhu LU Xin | 2010 | Rare Metals2010，29，3： | 3 |
| 5 | Precision casting of Ti-15V-3Cr-3Al-3Sn alloy setting显示文摘In this research, Ti-15V-3Cr-3Al-3Sn alloy ingots were prepared using ceramic mold and centrifugalcasting. The Ti-15V-3Cr-3Al-3Sn setting casting, for aeronautic engine, with 1.5 mm in thickness was manufactured.The alloy melting process, precision casting process, and problems in casting application were discussed. Effects ofHot Isostatic Pressing and heat treatment on the mechanical properties and microstructure of the Ti-15V-3Cr-3Al-3Sn alloy were studied. | Nan Hai Liu Changkui Huang Dong Zhao Jiaqi Zhao Hongxia | 2008 | China Foundry2008，5，1： | 2 |
| 6 | Evolutionary biogeography on Ophiocordyceps sinensis:An indicator of molecular phylogeny to geochronological and ecological exchanges显示文摘The fungus Ophiocordyceps sinensis is endemic to the vast region of the Qinghai-Tibetan plateau(QTP).The unique and complex geographical environmental conditions have led to the 'sky island' distribution structure of O.sinensis.Due to limited and unbalanced sample collections,the previous data on O.sinensis regarding its genetic diversity and spatial structure have been deemed insufficient.In this study,we analyzed the diversity and phylogeographic structures of O.sinensis using internally transcribed spacer region(ITS) and 5-locus datasets by a large-scale sampling.A total of 111 haplotypes of ITS sequences were identified from 948 samples data of the fungus O.sinensis,with representing high genetic diversity,and 8 phylogenetic clades were recognized in O.sinensis.Both the southeastern Tibet and the northwestern Yunnan were the centers of genetic diversity and genetic differentiation of the fungus,and they were inferred as the glacial refugia in the Quaternary.Three distribution patterns were identified to correspond to the 8 clades,including but not limited to the coexistence of widely and specific local distributive structures.It also revealed that the differentiation pattern of O.sinensis did not fit for the isolation-by-distance model.The differentiation into the 8 clades occurred between 1.56 Myr and6.62 Myr.The ancestor of O.sinensis most likely originated in the late Miocene(6.62 Myr) in the northwestern Yunnan,and the Scene A-C of the Qinghai-Tibetan movements may have played an important role in the differentiation of O.sinensis during the late Miocene-Pliocene periods.Our current results provide a much clearer and detailed understanding of the genetic diversity and geographical spatial distribution of the endemic alpine fungus O.sinensis.It also revealed that the geochronology resulting from paleogeology could be cross-examined with biomolecular clock at a finer scale. | Yongdong Dai Changkui Wu Feng Yuan Yuanbing Wang Luodong Huang Zihong Chen Wenbo Zeng Yao Wang Zhuliang Yang Pusheng Zeng Paul Lemetti Xuanxue Mo Hong Yu | 2020 | Geoscience Frontiers2020，11，3： | 2 |
| 7 | Jasmonate and salicy- late induce the expression of pathogenesis-related-protein genes and in- crease resistance to chilling injury in tomato fruit显示文摘 | DING Changkui WANG C GROSS K C | 2002 | Planta2002，214，6： | 1 |
| 8 | PEGylation and polyP-EGylation of nanodiamond显示文摘 | ZHANG Xiaoyong FU Changkui FENG Lin | | 0，，15： | 1 |
| 9 | Wavelet de-noising of partial discharge signals based on genetic adaptive threshold estimation显示文摘 | Li Jian Cheng Changkui Jiang Tianyan | 2012 | IEEE Trans on Dielectrics and Electrical Insulation2012，19，2： | 1 |
| 10 | Enhanced upconversion in Ho 3+ -doped transparent glass ceramics containing BaYbF 5 nanocrystals显示文摘 | Sha Jiang Hai Guo Xiantao Wei Changkui Duan Min Yin | 2013 | Journal of Luminescence2013，，： | 1 |
| 11 | Optical thermometry based on upconverted luminescence in transparent glass ceramics containing NaYF 4 :Yb 3+ /Er 3+ nanocrystals显示文摘 | Sha Jiang Peng Zeng Liqing Liao Shifeng Tian Hai Guo Yonghu Chen Changkui Duan Min Yin | 2014 | Journal of Alloys and Compounds2014，，： | 1 |
| 12 | Wavelet De-noising of Partial Discharge Signals Based on Genetic Adaptive Threshold Estimation 显示文摘 | Jian Li Changkui Cheng Tianyan Jiang | 2012 | IEEE Transactions on Dielectrics and Electrical Insulation2012，19，2： | 1 |
| 13 | CO2 -ResponsivePolymeric Vesicles That Breathe显示文摘 | Qiang Yan Rong Zhou Changkui Fu | 2011 | Angew ChemInt Ed2011，50，21： | 1 |
| 14 | Sintering and properties of low-firing non-ohmic SrTiO3 ceramics显示文摘 | Liqin Zhou Changkui Yu | 1994 | Journal of Materials Science1994，，22： | 1 |
| 15 | Optimization of UHF Hilbert Antenna for Partial Discharge Detection of Transformers 显示文摘 | Jian Li Tianyan Jiang Caisheng Wang and Changkui Cheng | 2012 | IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION2012，60，5： | 1 |
| 16 | Observation of non-Markovianity at room temperature by prolonging entanglement in solids显示文摘Open quantum systems are always exposed to an external environment,which result in interacting and exchanging information between quantum systems and their surroundings.The dynamics of real open quantum systems are often expected to deviate from the idealized Markovian process of losing information to their surrounding environment and to exhibit non-Markovian | Shijie Peng Xiangkun Xu Kebiao Xu Pu Huang Pengfei Wang Xi Kong Xing Rong Fazhan Shi Changkui Duan Jiangfeng Du | 2018 | Science Bulletin2018，63，6： | 1 |
| 17 | Wavelet Denoising of Partial Discharge Signals Based on Genetic Adaptive Threshold Estimation 显示文摘 | Jian Li Changkui Cheng Tianyan Jiang | 2012 | IEEE Transactions on Dielectrics and Electrical Insulation2012，19，2： | 1 |
| 18 | Thermo and pH dual-responsive materials for controllable oil/water separa- tion显示文摘 | Cao Yingze Liu Na Fu Changkui | 2014 | ACS Applied Materials & Interfaces2014，6，3： | 1 |
| 19 | Quantum metrology with single spins in diamond under ambient conditions显示文摘The detection of single quantum systems can reveal information that would be averaged out in traditional techniques based on ensemble measurements. The nitrogen-vacancy(NV) centers in diamond have shown brilliant prospects of performance as quantum bits and atomic sensors under ambient conditions, such as ultra-long coherence time, high fidelity control and readout of the spin state. In particular, the sensitivity of the NV center spin levels to external environmental changes makes it a versatile detector capable of measuring various physical quantities, such as temperature, strain, electric fields and magnetic fields. In this paper, we review recent progress in NV-based quantum metrology, and speculate on its future. | ming chen chao meng qi zhang changkui duan fazhan shi jiangfeng du | 2018 | National Science Review2018，5，3： | 1 |
| 20 | A model analysis of 4fn→4fn-15d transitions of rare-earth ions in crystals显示文摘 | Ning Lixin Duan Changkui Xia Shangda | 2004 | Journal of Alloys and Compounds2004，366，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员