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| 1 | Simulation of underexpanded supersonic jet flows with chemical reactions显示文摘To achieve a detailed understanding of underexpanded supersonic jet structures influenced by afterburning and other flow conditions, the underexpanded turbulent supersonic jet with and without combustions are investigated by computational fluid dynamics(CFD) method.A program based on a total variation diminishing(TVD) methodology capable of predicting complex shocks is created to solve the axisymmetric expanded Navier–Stokes equations containing transport equations of species. The finite-rate ratio model is employed to handle species sources in chemical reactions. CFD solutions indicate that the structure of underexpanded jet is typically influenced by the pressure ratio and afterburning. The shock reflection distance and maximum value of Mach number in the first shock cell increase with pressure ratio. Chemical reactions for the rocket exhaust mostly exist in the mixing layer of supersonic jet flows. This tends to reduce the intensity of shocks existing in the jet, responding to the variation of thermal parameters. | Fu Debin Yu Yong Niu Qinglin | 2014 | Chinese Journal of Aeronautics2014，27，3： | 12 |
| 2 | Effects of Double Harvesting on Heavy Metal Uptake by Six Forage Species and the Potential for Phytoextraction in Field显示文摘The pollution of soils by heavy metals has dramatically increased in recent decades. Phytoextraction is a technology that extracts elements from polluted soils using hyperaccumulator plants. The selection of appropriate plant materials is an important factor for successful phytoextraction in field. A field study was conducted to compare the efficiency of six high-biomass forage species in their phytoextraction of heavy metals(Cd, Pb, and Zn) from contaminated soil under two harvesting strategies(double harvesting or single harvesting). Among the tested plants, amaranth accumulated the greatest amounts of Cd and Zn, whereas Rumex K^(-1) had the highest amount of Pb in the shoot under both double and single harvesting. Furthermore, double harvesting significantly increased the shoot biomass of amaranth, sweet sorghum and sudangrass and resulted in higher heavy metal contents in the shoot. Under double harvesting, the total amounts of extracted Cd, Pb and Zn(i.e., in the first plus second crops) for amaranth were 945, 2 650 and 12 400 g ha^(-1), respectively, the highest recorded among the six plant species. The present results indicate that amaranth has great potential for the phytoextraction of Cd from contaminated soils. In addition, the double harvesting method is likely to increase phytoextraction efficiency in practice. | LI Ningyu GUO Bin LI Hua FU Qinglin FENG Renwei DING Yongzhen | 2016 | Pedosphere2016，26，5： | 8 |
| 3 | Formation and Optical Properties of ZnO:ZnFe_(2)O_(4) Superlattice Microwires显示文摘Pure ZnO hexagonal microwires and Fe(Ⅲ)-doped ZnO microwires(MWs)with a novel rectangular cross section were synthesized in a confined chamber by a convenient one-step thermal evaporation method.An oriented attachment mechanism is consistent with a vapor-solid growth process.Photoluminescence(PL)and Raman spectroscopy of the Fe(Ⅲ)-doped ZnO MWs and in situ spectral mappings indicate a quasi-periodic distribution of Fe(Ⅲ)along a one-dimensional(1-D)superlattice ZnO:ZnFe_(2)O_(4) wire,while PL mapping shows the presence of optical multicavities and related multimodes.The PL spectra at room temperature show weak near-edge doublets(376 nm and 383 nm)and a broad band(450-650 nm)composed of strong discrete lines,due to a 1-D photonic crystal structure.Such a 1-D coupled optical cavity material may find many applications in future photonic and spintronic devices. | Yun Li Guozhang Dai Chunjiao Zhou Qinglin Zhang Qiang Wan Limin Fu Jianping Zhang Ruibin Liu Chuanbao Cao Anlian Pan Yunhong Zhang Bingsuo Zou | 2010 | Nano Research2010，3，5： | 2 |
| 4 | Biophysical Chemical and Socio-economic Indicators for Assessing Agricultural Sustainability in the Chinese Coastal Zone显示文摘 | Nambiar K M Gupta A P Fu Qinglin | 2001 | Agriculture Ecosystems and Environment2001，87，2： | 1 |
| 5 | Luminescent characteristics of LiSrBO 3 :M (M显示文摘 | Panlai Li Zhijun Wang Zhiping Yang Qinglin Guo Guangsheng Fu | 2009 | Materials Research Bulletin2009，，11： | 1 |
| 6 | Agricultural Technologies for Enhancing the Phytoremediation of Cadmium-Contaminated Soil by Amaranthus hypochondriacus L.显示文摘 | Ningyu Li Zhian Li Qinglin Fu Ping Zhuang Bin Guo Hua Li | 2013 | Water Air & Soil Pollution2013，，9： | 1 |
| 7 | Biophysical chemical and socio - economic indicators for assessing agricultural sustainability in the Chinese coastal zone显示文摘 | Nambiar K K M Gupta A P Fu Qinglin | 2001 | Agriculture Ecosystems and Environment2001，87，： | 1 |
| 8 | Effect of Fertilizers on Cd Uptake of Amaranthus hypochondriacus, a High Biomass, Fast Growing and Easily Cultivated Potential Cd Hyperaccumulator显示文摘 | NingYu Li QingLin Fu Ping Zhuang Bing Guo Bi Zou ZhiAn Li | 2012 | International Journal of Phytoremediation2012，，： | 1 |
| 9 | Immobilizing ultrafine bimetallic PtAg alloy onto uniform MnO_(2) microsphere as a highly active catalyst for CO oxidation显示文摘Herein,a facile glycol reduction route is successful employed to synthesize bimetallic Pt Ag alloys with homogeneous distribution of sizes and elements.Experimental studies reveal that the ultrafine Pt Ag alloys with well-defined sizes from around 3.3 nm to 5.8 nm are immobilized onto MnO_(2)microsphere,which remarkably enhances the catalytic performances for CO oxidation.Importantly,quasi in-situ X-ray photoelectron spectroscopy(XPS)result reveals that both Mn and Pt ions on the surface of catalysts would realize alternating reduction-oxidation by CO and O_(2)molecules,and the oxygen vacancy sites could be replenished and excited by gas-phase O_(2). | Shengpeng Mo Peng Peng Yinchang Pei Taiming Shen Qinglin Xie Mingli Fu Yunfa Chen Daiqi Ye | 2021 | Chinese Chemical Letters2021，32，6： | 1 |
| 10 | Contribution of plant traits to the explanation of temporal variations in carbon and water fluxes in semiarid grassland patches显示文摘准确预测异质性景观碳水通量的时空变化,对于综合理解气候变化和植被动态对景观和区域碳水循环的影响至关重要。本研究通过野外观测试验来探究草地斑块碳水通量的季节变化及其与非生物和生物因子之间的关系。在生长季通过密闭同化箱法测定了三个类型草地斑块的日间碳水通量(包括生态系统净交换、总生态系统生产力、生态系统呼吸和蒸散发),同时测定了关键植物性状指标,并计算性状加权平均值和功能分异度。研究结果表明,碳水通量的时间变化受气象因子、土壤因子和群落功能性状的影响。考虑植物功能性状加权平均值和功能分异度可以极大地提高景观尺度碳水通量变异的解释度。比叶面积和叶片δ^(13)C含量是影响气体通量变化的重要性状指标。群落加权平均值对碳通量的预测能力优于功能分异度,而功能分异度对蒸散发的解释度更高。我们的研究结果表明,生物量比假说和互补效应假说互不排斥,但两者对不同的生态系统过程的相对重要性不同,群落功能性状对半干旱草地碳水通量时空变化的机理解释和模型预测具有重要作用。 | Mengyu Wang Nan Lu Qinglin Li Weiwei Fang Bojie Fu | 2020 | Journal of Plant Ecology2020，13，6： | 0 |
| 11 | Signal enhancement of the laser-induced plasma in the soil mixed with carbon显示文摘An experimental investigation of the carbon concentration effects on the emission intensity has been carried out using laserinduced plasma spectroscopy. The results show that the intensity of Ca II 393.367 nm and 396.847 nm characteristic lines emitted in the sample with the carbon concentration of 25% is about five times larger than that in the pure soil sample. It can be attributed to the high heat transfer coefficient and low ionization potentials of carbon in the system. Using the best experimental condition, quantitative analysis of the trace element of lead is conducted and the detection limit of lead concentration is estimated to be below 0.02%. | ZHANG QiuLin ZHANG JinPing ZHANG Lei LI Xu GUO QingLin FU GuangSheng | 2010 | Chinese Science Bulletin2010，55，4： | 0 |
| 12 | A parallel approach to direct resolution of albuterol显示文摘A library consisting of a series of O,O'-diaryzoyl-L-(-)-tartaric acids (2) was designed and synthesized. The substituent on the aromatic ring of 2 significantly affects the diastereomeric excess and efficiency of the resolution of racemic albuterol (1). Excel-lent resolving reagent 2a was selected for the resolution of rac-1 via the parallel approach. However,a family of three resolving reagents failed to improve the resolution efficiency of rac-1. | ZHONG QingLin PENG XiaoHua WU TongFei FU FangMin CUI Xin ZHU Jin DENG JinGen | 2010 | Chinese Science Bulletin2010，55，25： | 0 |
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