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| 1 | Influence of Different Al Contents on Microstructure, Tensile and Wear Properties of Zn-based Alloy显示文摘The influence of different Al contents on the microstructure, hardness, tensile and wear behavior of Zn-based alloys was investigated in the present study. The test results show that alloy with 27% Al content shows the higher ultimate strength and elongation percent at room and elevated temperatures. It also exhibits the higher wear resistance at all loads in view of the higher tightness of Zn-27Al alloy. Increasing Al content from 33% to 48% results in improvement of ultimate strength and elongation percent at room and elevated temperatures. However, the ultimate strength and elongation percent of the ZA48 alloy are still lower than that of Zn-27Al alloys. The reason can be attributed to the increasing segregation and voids with increasing Al contents. | Shuqing Yan Jingpei Xie Zhongxia Liu Wenyan Wang Aiqin Wan Jiwen Li | 2010 | Journal of Materials Science & Technology2010，26，7： | 4 |
| 2 | Effects of Normalized Difference Vegetation Index and Related Wavebands′ Characteristics on Detecting Spatial Heterogeneity Using Variogram-based Analysis显示文摘Spatial heterogeneity is widely used in diverse applications, such as recognizing ecological process, guiding ecological restoration, managing land use, etc. Many researches have focused on the inherent scale multiplicity of spatial heterogeneity by using various environmental variables. How these variables affect their corresponding spatial heterogeneities, however, have received little attention. In this paper, we examined the effects of characteristics of normalized difference vegetation index (NDVI) and its related bands variable images, namely red and near infrared (NIR), on their corresponding spatial heterogeneity detection based on variogram models. In a coastal wetland region, two groups of study sites with distinct fractal vegetation cover were tested and analyzed. The results show that: 1) in high fractal vegetation cover (H-FVC) area, NDVI and NIR variables display a similar ability in detecting the spatial heterogeneity caused by vegetation growing status structure; 2) in low fractal vegetation cover (L-FVC) area, the NIR and red variables outperform NDVI in the survey of soil spatial heterogeneity; and 3) generally, NIR variable is ubiquitously applicable for vegetation spatial heterogeneity investigation in different fractal vegetation covers. Moreover, as variable selection for remote sensing applications should fully take the characteristics of variables and the study object into account, the proposed variogram analysis method can make the variable selection objectively and scientifically, especially in studies related to spatial heterogeneity using remotely sensed data. | WEN Zhaofei ZHANG Ce ZHANG Shuqing DING Changhong LIU Chunyue PAN Xin LI Huapeng SUN Yan | 2012 | Chinese Geographical Science2012，22，2： | 4 |
| 3 | Magnetic characteristics and its environmental implications of core YSJD-86GC sediments from the southern South China Sea显示文摘Sediments of core YSJD-86GC(referred to as86GC)collected from the southern South China Sea were selected for environmental magnetic studies.Combined with the published chronological framework,sediment magnetic properties were revealed for the study area since the MIS3 stage.The rock magnetic results indicate that low-coercivity magnetite is the main magnetic mineral within the sediments.Also,a certain amounts of hematite are present.The King plot and Day plot,which reflect the magnetic particle size,show that fine-grained pseudo-single-domain phase magnetic particles dominate the magnetic minerals in the sediments.Comparison of magnetic parameters and geochemical indicators show that magnetic properties of core 86GC sediments reflect a terrigenous input.Simultaneously,magnetic characteristics of the studied sediment are influenced by the quantity of terrigenous sediment input,oxidation-reduction conditions of the provenance area,and the transportation environment and distance.Sea level fluctuation caused by global climate change was the main factor for variation in concentration of magnetic minerals and magnetic particle size of thestudied core sediments.Thus,variation of sediment magnetic properties in the study area can be used as an indirect indicator of sea level fluctuation. | Tingping Ouyang Chengjing Tian Zhaoyu Zhu Yan Qiu Erwin Appel Shuqing Fu | 2014 | Chinese Science Bulletin2014，59，25： | 3 |
| 4 | Land Cover Classification with Multi-source Data Using Evidential Reasoning Approach显示文摘Land cover classification is the core of converting satellite imagery to available geographic data.However,spectral signatures do not always provide enough information in classification decisions.Thus,the application of multi-source data becomes necessary.This paper presents an evidential reasoning (ER) approach to incorporate Landsat TM imagery,altitude and slope data.Results show that multi-source data contribute to the classification accuracy achieved by the ER method,whereas play a negative role to that derived by maximum likelihood classifier (MLC).In comparison to the results derived based on TM imagery alone,the overall accuracy rate of the ER method increases by 7.66% and that of the MLC method decreases by 8.35% when all data sources (TM plus altitude and slope) are accessible.The ER method is regarded as a better approach for multi-source image classification.In addition,the method produces not only an accurate classification result,but also the uncertainty which presents the inherent difficulty in classification decisions.The uncertainty associated to the ER classification image is evaluated and proved to be useful for improved classification accuracy. | LI Huapeng ZHANG Shuqing SUN Yan GAO Jing | 2011 | Chinese Geographical Science2011，21，3： | 3 |
| 5 | Influence of titanium content on wear resistance of electrolytic low-titanium eutectic Al-Si piston alloys显示文摘The wear resistance of six kinds of the electrolytic low-titanium eutectic Al-Si piston alloys with various Ti content ranging from 0.00wt.% to 0.21wt.% has been studied. A new method of adding Ti is adopted in the electrolytic low-titanium aluminum alloy ingots. The electrolytic low-titanium eutectic Al-Si piston alloys are produced by remelting the electrolytic low-titanium aluminum alloy, crystal silicon, pure magnesium, Al-50%Cu and Al-10%Mn master alloy. The wear experiments are conducted using MM200 wear testing machine under lubricating condition. The results indicate that the better wear resistance and the less weight loss are achieved in the study for the eutectic Al-Si piston alloys with 0.08wt.%–0.12wt.% Ti content. The highest ultimate tensile strength of 135.94 MPa at 300℃ and HV141.70 hardness of the alloys are obtained at 0.12wt.% and 0.08wt.% Ti content, respectively. The wear mechanism of the eutectic Al-Si piston alloys under lubricating condition is abrasive wear. | Wang Jiefang Xie Jingpei Yan Shuqing Liu Zhongxia Weng Yonggang Wang Mingxing Song Tianfu | 2008 | China Foundry2008，5，3： | 1 |
| 6 | Broadband High-Efficiency Surface-Plasmon-Polariton Coupler with Silicon-Metal Interface显示文摘 | Jie Tian Shuqing Yu Wei Yan Min Qiu | | 0，，： | 1 |
| 7 | An adjustable multi-color detector based on regulating TiO_(2)surface adsorption and multi-junction synergy显示文摘A TiO_(2)-based multi-color photodetector with controlled photoelectric response to ultraviolet(UV)and visible light is developed by using band regulation technologies such as multi-junction synergy and surface adsorption.This photodetector is manufactured via a continuous process including magnetron sputtering,hydrothermal growth,hydrogen annealing,spin coating and thermal evaporation assembly to form a structure of N-doped TiO_(2)/hydrogenated-TiO_(2)/p-Si heterojunction.These synergistic effects form electronic potential wells in the device to control the electrical transport and spectral response of photo-generated carriers.In the air,the device exhibits a controllable photodetection ability that responds to visible light at positive voltages and UV light at negative voltages.But in vacuum(<0.1 Pa),the photodetection ability of the device at negative voltages is greatly reduced due to the lack of barrier effect caused by surface adsorption.On the contrary,the photodetection ability at positive voltage(e.g.,4 V)has been greatly improved,and the quantum efficiency reaches 206.6%under the 480 nm wavelength light.The device has a controllable ability to detect UV and visible light depending on the environments,which is very useful in the fields of environmental detection,chemical sensing and multi-color communication,etc. | Tao Ji Shuqing He Fujin Ai Jianghong Wu Li Yan Junqing Hu Meiyong Liao | 2021 | Nano Research2021，14，10： | 1 |
| 8 | Multi-chambered,carbon-coated Ni_(0.4)Fe_(2.6)O_(4) nanoparticle superlattice microspheres for boosting water oxidation reaction显示文摘Developing active and robust non-noble-metal-based electrocatalysts for the oxygen evolution reaction(OER)is of vital practical significance for accelerating the kinetics of water splitting.Here,a novel double emulsion template method is proposed to design and prepare hierarchically multichambered,carbon-coated Ni_(0.4)Fe_(2.6)O_(4) nanoparticle superlattice microspheres(M-NFO@C-NSMs)for the highly efficient oxygen evolution.The high-temperature calcination under inert gas enables an improved electrochemical property by rationally transforming the long-chain organic capping ligands into partially graphitized uniform carbon coatings.More importantly,benefiting from the unique hierarchical superstructure with macro-/meso-/microporosities and three-dimensional continuous conductive carbon frameworks,M-NFO@C-NSMs exhibit comprehensively enhanced OER activity in a dilute alkaline electrolyte as compared to their solid counterparts and most spinelbased electrocatalysts reported to date.Notably,the collective property of supraparticles endowed M-NFO@C-NSMs with superior long-term cyclic stability.This work sheds light on the sophisticated design of functionalized supraparticles for efficient water splitting. | Mingzhong Li Yuwei Deng Guanhong Wu Shuqing Xue Yancui Yan Zihan Liu Jinxiang Zou Dong Yang Angang Dong | 2021 | Aggregate2021，2，2： | 0 |
| 9 | Review of Microbial Inoculation Agent Used in Composting显示文摘Microbial inoculation agent has been widely used in waste disposal and waste recycling. In this paper, the principle of fermentation in the composting of agricultural waste and the impact of microbial inoculation agent on composting were reviewed.The research and the application of microbial inoculation agent were also introduced. Based on the trend of the research, the promising prospect of microbial inoculation agent was discussed. | HUANG Yaxi FENG Shuqing XU Xiuhong MAO Zhicheng WANG Mingyue LIU Yanfang HUANG Yan | 2009 | Journal of Northeast Agricultural University(English Edition)2009，16，2： | 0 |
| 10 | A novel lysosome‐localized fluorescent probe with aggregation‐induced emission without alkalinizing effect显示文摘Herein,a novel small molecule probe,tetraphenylethylene‐cystein(TPE‐Cys),was rationally designed and developed for the intracellular lysosome localization.The combination of tetraphenylethylene and cysteine serve as a novel strategy for lysosome‐targeting,with significant aggregation‐induced emission increases with the proportion of water by as high as 25‐folds.Biofluorescence imaging experiments show that the probe TPE‐Cys has a good colocalization effect with the commercially available lysotracker red,with a Pearson correlation coefficient of 0.91.In addition,we also demonstrate that TPE‐Cys has good light stability.TPE‐Cys,as a neutral compound,is free of alkalinizing effect when applied in lysosome localization.Moreover,molecular dynamics simulations and density function theories are employed to explore the detailed aggregation process and the mechanism of TPE‐Cys aggregation in water solution.The mechanism of lysosome localization of probe TPE‐Cys was explained by cellular endocytosis process and the formation of larger particle in the more acidic environment of lysosomes.This work not only demonstrates an efficient strategy for the construction of fluorescent probes for lysosome localization,but also indicates that they are promising as live cell imaging tools. | Jingran Zhang Yan Jia Xinyi Xing Mengmei Qin Zibo Wu Yingqian Zhong Lele Liu Shuqing Sun Peng Li Haiyuan Wang Guangjiu Zhao | 2021 | SmartMat2021，2，4： | 0 |
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