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| 1 | Examining Forest Net Primary Productivity Dynamics and Driving Forces in Northeastern China During 1982–2010显示文摘Forest net primary productivity(NPP) is a key parameter for forest monitoring and management. In this study, monthly and annual forest NPP in the northeastern China from 1982 to 2010 were simulated by using Carnegie-Ames-Stanford Approach(CASA) model with normalized difference vegetation index(NDVI) sequences derived from Advanced Very High Resolution Radiometer(AVHRR) Global Inventory Modeling and Mapping Studies(GIMMS) and Terra Moderate Resolution Imaging Spectroradiometer(MODIS) products. To address the problem of data inconsistency between AVHRR and MODIS data, a per-pixel unary linear regression model based on least squares method was developed to derive the monthly NDVI sequences. Results suggest that estimated forest NPP has mean relative error of 18.97% compared to observed NPP from forest inventory. Forest NPP in the northeastern China increased significantly during the twenty-nine years. The results of seasonal dynamic show that more clear increasing trend of forest NPP occurred in spring and autumn. This study also examined the relationship between forest NPP and its driving forces including the climatic and anthropogenic factors. In spring and winter, temperature played the most pivotal role in forest NPP. In autumn, precipitation acted as the most important factor affecting forest NPP, while solar radiation played the most important role in the summer. Evaportranspiration had a close correlation with NPP for coniferous forest, mixed coniferous broadleaved forest, and broadleaved deciduous forest. Spatially, forest NPP in the Da Hinggan Mountains was more sensitive to climatic changes than in the other ecological functional regions. In addition to climatic change, the degradation and improvement of forests had important effects on forest NPP. Results in this study are helpful for understanding the regional carbon sequestration and can enrich the cases for the monitoring of vegetation during long time series. | MAO Dehua WANG Zongming WU Changshan SONG Kaishan REN Chunying | 2014 | Chinese Geographical Science2014，24，6： | 16 |
| 2 | Effects of temperature and pressure on the structural and optical properties of ZnO films grown by pulsed laser deposition显示文摘ZnO thin films were deposited on fused silica via pulsed laser deposition (PLD) at substrate temperatures from 300°C to 800°C and ambient oxygen pressures ranging from 10-2 mTorr to 240 mTorr. X-ray diffraction (XRD) and Raman spectra indicated that wurtzite ZnO was obtained in all cases. The highly c-oriented ZnO films were obtained for oxygen pressures above 11 mTorr. The room-temperature photoluminescence (PL) spectra demonstrated that all the films exhibited strong near-band-edge (NBE) emission, while deep-level (DL) emission was also observed in films deposited at oxygen pressures below 80 mTorr. From analysis of the XRD, Raman and photoluminescence PL data, an optimal condition was identified for the deposition of highly crystallized ZnO films. | ZHAO Lei, XU ChangShan, LIU YuXue & LIU YiChun Center for Advanced Opto-Electronic Functional Materials Research, Northeast Normal University, Changchun 130024, China | 2010 | Science China(Technological Sciences)2010，53，2： | 6 |
| 3 | Physiological levels of ATP negatively regulate proteasome function显示文摘由 ubiquitin-proteasome 系统的细胞内部的蛋白质降级是 ATP 依赖者,和最佳的 ATP 集中激活 proteasome 在 vitro 的功能是 ~ 100 渭 M。细胞内部的 ATP 层次在在这个范围以内的水平通常在低 millimolar 范围,而是 ATP 被显示在 vitro 禁止 proteasome peptidase 活动。这里,我们报导支持在生理的层次的细胞内部的 ATP 双向地调整的一个假设的新证据 26S proteasome 在房间的解朊的功能。首先,我们证实 ATP 在 vitro 在 26S proteasome 上施加了双向规定,与最佳的 ATP 集中(在 50 和 100 渭 M 之间) 刺激 proteasome 像糜蛋白酶的活动。第二,我们发现操作细胞内部的 ATP 层次也在有教养的房间在 proteasome 特定的蛋白质底层的层次导致了双向变化。最后,测量增加提高的细胞内部的 ATP,当减少的细胞内部的 ATP 稀释了导致房间死亡的 proteasome 抑制的能力时。这些数据强烈建议在生理的集中范围以内的内长的 ATP 能在 proteasome 活动施加否定影响,允许房间到很快,在应力下面的 ATP 减小上的 upregulate proteasome 活动调节。 | Hongbiao Huang Xiaoyan Zhang Shujue Li Ningning Liu Wen Elan Emily McDowell Ping Zhou Canguo Zhao Haiping Guo Change Zhang Changshan Yang Guangmei Wen Xiaoxian Dong Li Lu Ningfang Ma Weihua Dong Q Ping Dou Xuejun Wang Jinbao Liu | 2010 | Cell Research2010，20，12： | 4 |
| 4 | Alginate encapsulated mesoporous silica nanospheres as a sustained drug delivery system for the poorly water-soluble drug indomethacin显示文摘We applied a combination of inorganic mesoporous silica material,frequently used as drug carriers,and a natural organic polymer alginate(ALG),to establish a sustained drug delivery system for the poorly water-soluble drug Indomethacin(IND).Mesoporous silica nanospheres(MSNs)were synthesized using an organic template method and then functionalized with aminopropyl groups through postsynthesis.After drug loading into the pores of aninopropyl functionalized MSNs(AP-MSNs),IND loaded AP-MSNs(IND-AP-MSNs)were encapsulated by ALG through the ionic interaction.The effects of surface chemical groups and ALG layer on IND release were systematically studied using scanning electron microscopy(SEM),transmission electron microscopy(TEM),nitrogen adsorption,zetapotential analysis and TGA analysis.The surface structure and surface charge changes of the ALG encapsulated AP-MSNs(ALG-AP-MSNs)were also investigated.The results showed that sustained release of IND from the designed drug delivery system was mainly due to the blockage effect from the coated ALG.We believe that this combination will help designing oral sustained drug delivery systems for poorly water-soluble drugs. | Liang Hu Changshan Sun Aihua Song Di Chang Xin Zheng Yikun Gao Tongying Jiang Siling Wang | 2014 | Asian Journal of Pharmaceutical Sciences2014，9，4： | 2 |
| 5 | Impact of FY-3D MWRI Radiance Assimilation in GRAPES 4DVar on Forecasts of Typhoon Shanshan显示文摘In this study, Fengyun-3 D(FY-3 D) Micro Wave Radiation Imager(MWRI) radiance data were directly assimilated into the Global/Regional Assimilation and Pr Ediction System(GRAPES) four-dimensional variational(4 DVar) system. Quality control procedures were developed for MWRI applications by using algorithms from similar microwave instruments. Compared with the FY-3 C MWRI, the bias of FY-3 D MWRI observations did not show a clear node-dependent difference from the numerical weather prediction background simulation. A conventional bias correction approach can therefore be used to remove systematic biases before the assimilation of data. After assimilating the MWRI radiance data into GRAPES, the geopotential height and humidity analysis fields were improved relative to the control experiment. There was a positive impact on the location of the subtropical high, which led to improvements in forecasts of the track of Typhoon Shanshan. | Hongyi XIAO Wei HAN Hao WANG Jincheng WANG Guiqing LIU Changshan XU | 2020 | Journal of Meteorological Research2020，34，4： | 2 |
| 6 | Estimating impervious surface distribution by spectral mixture analysis显示文摘 | Changshan Wu Alan T. Murray | 2002 | Remote Sensing of Environment2002，，4： | 2 |
| 7 | Estimating impervious surface distribution by spectral mixture analysis显示文摘 | Changshan Wu Alan T. Murray | 2002 | Remote Sensing of Environment2002，，4： | 2 |
| 8 | Quantifying high-resolution impervious surfaces using spectral mixture analysis显示文摘 | Changshan Wu | 2009 | International Journal of Remote Sensing2009，，11： | 1 |
| 9 | Normalized spectral mixture analysis for monitoring urban composition using ETM + imagery显示文摘 | Wu Changshan | 2004 | Remote Sensing of Environment2004，93，4： | 1 |
| 10 | Normalized spectral mixture analysis for monitoring urban composition using ETM + imagery 显示文摘 | WU Changshan | 2004 | Remote Sensing of Environment2004，，93： | 1 |
| 11 | Structural and photoluminescent properties of ZnO hexagonal nanoprisms synthesized by microemulsion with polyvinyl pyrrolidone served as surfactant and passivant显示文摘 | Xiaomeng Sui Yichun Liu Changlu Shao Yuxue Liu Changshan Xu | 2006 | Chemical Physics Letters2006，，4： | 1 |
| 12 | Estimating Impervious Surface Distribution by Spectral Mixture Analysis 显示文摘 | Wu Changshan Murray A T | 2003 | Remote Sensing of Environment2003，84，4： | 1 |
| 13 | Normalized spectral mixture analysis for monitoring urban composition using ETM + imagery显示文摘 | Wu Changshan | 2004 | Remote Sensing of Environment2004，，93： | 1 |
| 14 | The permeation of tritium through 316L stainless with multiple coatings显示文摘 | Yao Zhenyu Hao Jiakun Zhou Changshan | 2000 | Journal of Nuclear Materials2000，，： | 1 |
| 15 | Estimating Impervi ous Surface Distribution by Spectral Mixture Analy sis显示文摘 | Wu Changshan Murray A T | 2003 | Remote Sensing of Environment2003，84，： | 1 |
| 16 | The Permeation of Tritium Through 316L Stainless With Multiple Coatings显示文摘 | Yao Zhenyu Hao Jiakun Zhou Changshan | 2000 | J Nucl Mater2000，，： | 1 |
| 17 | Estimating impervioussurface distribution by spectral mixture analysis显示文摘 | Wu Changshan Murray A T | 2003 | Remote Sensing of Environment2003，84，4： | 1 |
| 18 | Normalized spectral mixture analysis for monitoring urban composition using ETM+ imagery显示文摘 | Changshan Wu | 2004 | Remote Sensing of Environment2004，，4： | 1 |
| 19 | Preparation, characterization, release kinetics, and in vitro cytotoxicity of calcium silicate cement as a risedronate delivery system显示文摘 | Tianxing Gong Zhiqin Wang Yubiao Zhang Changshan Sun Quanzu Yang Tom Troczynski Urs O. H?feli | 2014 | J Biomed Mater Res2014，，7： | 1 |
| 20 | The progress and prospects of rural biogas production in China显示文摘 | Ling Chen Lixin Zhao Changshan Ren | 2012 | Energy Policy2012，51，： | 1 |
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