|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Ammonia volatilization from a Chinese cabbage field under different nitrogen treatments in the Taihu Lake Basin, China显示文摘Ammonia(NH_3) volatilization is a major pathway of nitrogen(N) loss from soil-crop systems.As vegetable cultivation is one of the most important agricultural land uses worldwide,a deeper understanding of NH_3 volatilization is necessary in vegetable production systems.We therefore conducted a 3-year(2010–2012) field experiment to characterize NH_3 volatilization and evaluate the effect of different N fertilizer treatments on this process during the growth period of Chinese cabbage.Ammonia volatilization rate,rainfall,soil water content,p H,and soil NH_4^+were measured during the growth period.The results showed that NH_3 volatilization was significantly and positively correlated to topsoil p H and NH4+concentration.Climate factors and fertilization method also significantly affected NH_3 volatilization.Specifically,organic fertilizer(OF) increased NH_3 volatilization by 11.77%–18.46%,compared to conventional fertilizer(CF,urea),while organic–inorganic compound fertilizer(OIF) reduced NH_3 volatilization by 8.82%–12.67% compared to CF.Furthermore,slow-release fertilizers had significantly positive effects on controlling NH_3 volatilization,with a 60.73%–68.80% reduction for sulfur-coated urea(SCU),a 71.85%–78.97% reduction for biological Carbon Power~® urea(BCU),and a 77.66%–83.12% reduction for bulk-blend controlled-release fertilizer(BBCRF)relative to CF.This study provides much needed baseline information,which will help in fertilizer choice and management practices to reduce NH_3 volatilization and encourage the development of new strategies for vegetable planting. | Linan Shan Yunfeng He Jie Chen Qian Huang Hongcai Wang | 2015 | Journal of Environmental Sciences2015，27，12： | 28 |
| 2 | Iron isotopic analyses of geological reference materials on MC-ICP-MS with instrumental mass bias corrected by three independent methods显示文摘Here we report iron(Fe) isotopic data of three pure Fe solution standards(IRMM-014, GSB Fe, and NIST3126a) and five widely used geological reference materials(RMs) from the United States Geological Survey and Geological Survey of Japan obtained on a Neptune Plus multi-collector–inductively coupled plasma–mass spectrometer(MC-ICP-MS) in our laboratory over the past 3 years. The instrumental mass bias was corrected by three independent methods: sample-standard bracketing(SSB),Ni doping + SSB, and ^(57)Fe–^(58)Fe double spike + SSB.Measurements reveal that both the Ni doping and double spike methods helped calibrate short-term fluctuations in mass bias. Collectively, almost all measurements of RMs yielded δ^(56)Fe within ± 0.05 of recommended values,provided that each sample was measured four times on MC-ICP-MS. For the first time, new recommended values for NIST SRM3126a are reported(δ^(56)Fe = 0.363 ± 0.006,2SE, 95% CI; and δ^(57)Fe = 0.534 ± 0.010, 2SE). | Chuanwei Zhu Wenning Lu Yongsheng He Shan Ke Hongjie Wu Linan Zhang | 2018 | Acta Geochimica2018，37，5： | 2 |
| 3 | Generalized Twin-Shear Stress Yield Criterion and Its Generalization 显示文摘 | Yu Maohong He Linan Liu Chunyang | 1992 | Chinese Science Bulletin1992，37，64： | 1 |
| 4 | Steered molecular dynamics simulations on the binding of the appendant structure and helix-b2 in domain - swapped human cystatin C dimer 显示文摘 | Shen Manli Guan Jing Xu Linan Yu Yuan He Jianwei Jones Gary W and Song Youtao | 2012 | Journal of Biomolecular Structure and Dynamics2012，30，6： | 1 |
| 5 | Generalized twin-shear stress yield criterion and its generalization 显示文摘 | Yu Maohong He Linan Liu Chunyang | 1992 | Chinese Science Bulletin1992，37，64： | 1 |
| 6 | Twin shear stress theory and its generalization显示文摘 | Yu Maohong He Linan Song Lingyu | 1985 | Scientia Sinica(Series A)1985，28，11： | 1 |
| 7 | Study on Cloud Computing Resource Scheduling Strategy Based on the Ant Colony Optimization Algorithm 显示文摘 | Zhu Linan Li Qingshui He Lingna | 2012 | IJCSI International Journal of Computer Science Issues2012，9，5： | 1 |
| 8 | Twin shear theory and its generalization 显示文摘 | Yu Maohong He Linan Song Lingyu | 1985 | Scientia Sinica (series A)1985，28，11： | 1 |
| 9 | Deformation and failure behavior of heterogeneous Mg/SiC nanocomposite under compression显示文摘The heterogeneous magnesium(Mg) matrix nanocomposite with dispersed soft phase exhibits high strength and toughness. Herein, the deformation behavior and failure process were investigated to reveal the unique mechanical behavior of the heterogeneous microstructure under compression. The extensive plastic deformation is accompanied by the flattening and tilting of the soft phase, inhibiting strain localization and leading to strain hardening. Moreover, a stable crack multiplication process is activated, which endows high damage tolerance to the heterogeneous Mg matrix nanocomposites. The final failure of the composite is caused by crack coalescence in the shear plane along a tortuous path. The presence of dispersed soft phases within the hard matrix induces a noticeable change in mechanical response. Especially,the malleability of the heterogeneous Mg matrix nanocomposite is two and ten times higher than that of pure Mg and the homogeneous Mg matrix nanocomposite, respectively. The current study provides a novel strategy to break the trade-off between strength and toughness in metal matrix nanocomposites. | Xi Luo Jinling Liu Leigang Zhang Xu He Ke Zhao Linan An | 2022 | Journal of Magnesium and Alloys2022，10，12： | 1 |
| 10 | Micromechanical simulation on strength and ductility of two kinds of Al-based nanostructural materials显示文摘The nanostructured Al-based composites possess the combination of high yield strength and good ductility. In this paper, a micromechanical model is presented to simulate the mechanical response of bimodal nanostructured Al and the particle-reinforced aluminum matrix composite(PAMC). The constitutive relations for different phases are addressed in the model, as well as the contribution of microcracks. Numerical results show that the model can successfully describe the enhanced strength and ductility of the bimodal nanostructured Al, and the predictions of the PAMC are in good agreement with the experimental data. It is worth noting that the strength and ductility are sensitive to the volume fraction of constituents and the distribution of microcracks in both bimodal nanostructured Al and PAMC. Therefore, the present theoretical results can be used to optimize the microstructure for improving the mechanical properties of nanostructured Al-based composites. | Xu He Linli Zhu Jinling Liu Linan An | 2017 | Acta Mechanica Solida Sinica2017，30，4： | 0 |
| 11 | Epigenetic modification associated with climate regulates betulin biosynthesis in birch显示文摘The Betula genus contains pentacyclic triterpenoid betulin known for its environmental adaptation and medicinal properties.However,the mechanisms underlying betulin biosynthesis responding to climate change remain unclear.In this study,the role of epigenetic modification(DNA methylation) in betulin biosynthesis was examined and how climatic factors influence it.Whole-genome bisulfite sequencing was performed for greenhouse-grown Chinese white birch(Betula platyphylla Sukaczev) treated with DNA methylation inhibitor zebularine(ZEB) and a natural birch population in Northeast China.ZEB treatment significantly affected the CHH methylation level of transposable elements and betulin content in a hormesis dose-dependent manner.The methylation and expression of bHLH9,a key transcriptional factor controlling betulin biosynthesis,were also consistently affected by ZEB treatment as a hormetic dose-response.In the natural population,there was a positive correlation between promoter methylation of bHLH9 and summer precipitation,while winter temperature was negatively correlated.Thus climate-dependent methylation of bHLH9 regulates the expression of downstream genes involved in betulin biosynthesis.This study highlights the role of environmental signals to induce epigenetic changes that result in betulin production,possibly helping to develop resilient plants to combat ongoing climate change and enhance secondary metabolite production. | Jiang Wang Bowei Chen Shahid Ali Tianxu Zhang Yu Wang He Zhang Lishan Wang Yonglan Zhang Linan Xie Tingbo Jiang Jing Yin Heike W.Sederoff Gaurav Zinta Ronald R.Sederoff Yuhua Li Qingzhu Zhang | 2023 | Journal of Forestry Research2023，34，1： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员