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| 1 | Mapping wetland changes in China between 1978 and 2008显示文摘Four wetland maps for all China have been produced,based on Landsat and CBERS-02B remote sensing data between 1978 and 2008 (1978,1990,2000 and 2008).These maps were mainly developed by manual interpretation and validated by substantial field investigation in 2009.Based on these maps,we analyzed the 2008 wetland distribution in China and discussed wetland changes and their drivers over the past 30 years.(i) There were about 324097 km 2 of wetlands in 2008,for which inland marshes or swamps were the most common wetland type (35%),with lakes (26%) second.Most of the wetlands were in Heilongjiang,Inner Mongolia,Qinghai and Tibet,occupying about 55% of the national wetland area.(ii) From 1978 to 2008,China's wetland area continually and significantly decreased,by about 33% based on changes in the wetland map.This was in sharp contrast to the increase in artificial wetlands,which increased by about 122%.Inland marshes accounted for the main loss of total wetlands from 1978 to 2000.From 2000 through 2008,riverine and lacustrine wetlands constituted the main wetland loss.Fortunately however,the rate of wetland loss decreased from 5523 to 831 km 2 /a.(iii) The change ratio of lost natural wetlands (including inland and coastal wetlands) to non-wetlands has decreased slightly over the past 30 years.From 1978 to 1990,nearly all natural wetlands (98%) lost were transformed into non-wetlands.However,the ratio declined to 86% from 1990 to 2000,and to 77% from 2000 to 2008.(iv) All Chinese provinces were divided into three groups according to patterns of wetland changes,which could relate to the driving forces of such changes.Tibet was completely different from other provinces,as it was one representative example in which there was a net wetland increase,because of global warming and decreased human activity since 1990.Increased economic development caused considerable wetland loss in most eastern provinces,and artificial wetlands increased. | NIU ZhenGuo ZHANG HaiYing WANG XianWei YAO WenBo ZHOU DeMin ZHAO KuiYi ZHAO Hui LI NaNa HUANG HuaBing LI CongCong YANG Jun LIU CaiXia LIU Shuang WANG Lin LI Zhan YANG ZhenZhong QIAO Fei ZHENG YaoMin CHEN YanLei SHENG YongWei GAO XiaoHong ZHU WeiHong WANG WenQing WANG Hong WENG YongLing ZHUANG DaFang LIU JiYuan LUO ZhiCai CHENG Xiao GUO ZiQi GONG Peng | 2012 | Chinese Science Bulletin2012，57，22： | 51 |
| 2 | China's wetland change (1990-2000) determined by remote sensing显示文摘Two wetland maps for the entire China have been produced based on Landsat data acquired around 1990 and 2000. Wetlands in China have been divided into 3 broad categories with 15 sub-categories except rice fields. In 1990, the total wetland area in China was 355208 km2 whereas in 2000 it dropped to 304849 km2 with a net loss of 50360 km2. During an approximate 10-year period, inland wetland reduced from 318326 to 257922 km2, coastal wetland dropped from 14335 to 12015 km2, while artificial wetland increased from 22546 to 34911 km2. The greatest natural wetland loss occurred in Heilongjiang, Inner Mon- golia, and Jilin with a total loss of over 57000 km2 of wetland. In western China, over 13000 km2 of wetlands were newly formed in Xinjiang, Tibet, and Qinghai. About 12000 km2 of artificial wetlands were also added for fish farm and reservoir constructions. The newly formed wetlands in western China were caused primarily by climate warming over that region whereas the newly created artificial wetlands were caused by economic developments. China’s wetland loss is caused mainly by human activities. | Peng Gong ZhenGuo Niu Xiao Cheng KuiYi Zhao DeMin Zhou JianHong Guo Lu Liang XiaoFeng Wang DanDan Li HuaBing Huang et al. | 2010 | Science China Earth Sciences2010，53，7： | 28 |
| 3 | Selective photosensitized oxidation and its catalytie regulation of monotcrpene with molecular oxygen in different reaction media显示文摘 | Kuiyi You Dulin Yin Liqiu Mao | | 0，，： | 1 |
| 4 | Efficient separation of phenols from coal tar with aqueous solution of amines by liquid-liquid extraction显示文摘In this paper,a method of extracting phenols from coal tar by amines aqueous solution was proposed.The effects of various amines on the extraction properties of phenols in coal tar were researched from the views of molecular structure.The parameters such as molar ratio,concentration,extraction time and temperature for the extraction of coal tar by the monoethanolamine and ethylenediamine aqueous solution were examined.The results show that the organic amine with more amino groups,hydroxyl structure and strong electronegativity exhibited better extraction performance.Under the optimal conditions,the extraction yields of phenols in coal tar by the monoethanolamine or ethylenediamine aqueous solution are above 80%,and the recovery yields of amines reach 99%.Furthermore,the probable geometries of complexes formed by the combination of phenols and organic amines were calculated by density function theory.In addition,several thermodynamic models were evaluated through comparing the relative deviation of simulation results by ASPEN PLUS to the experimental ones,which provide feasibility thermodynamic models for the simulation of extraction process.The present work affords a mild,efficient and green approach for the extraction of phenols from coal tar by an aqueous solution of amines in industry application. | Yonglin Li He'an Luo Qiuhong Ai Kuiyi You Fei Zhao Wenlong Xiao | 2021 | Chinese Journal of Chemical Engineering2021，34，7： | 1 |
| 5 | One-step synthesis of ε-caprolactam from cyclohexane and nitrosyl sulfuric acid catalyzed by VPO supported transition metal composites显示文摘 | YOU Kuiyi MAO Liqiu CHEN Lei | 2008 | Catal Commun2008，9，1112： | 1 |
| 6 | A simple and efficient approach for synthesis of pseudoionone from citral and acetone catalyzed by powder LiOH center dot HzO 显示文摘 | Xing Kongqiang You Kuiyi Yin Dulin | 2009 | Catalysis Communications2009，11，4： | 1 |
| 7 | Driving Forces for the Marsh Wetland Degradation in the Honghe National Nature Reserve in Sanjiang Plain, Northeast China显示文摘 | Demin Zhou Huili Gong Yiyong Wang Shahbaz Khan Kuiyi Zhao | 2009 | Environmental Modeling & Assessment2009，，1： | 1 |
| 8 | Studies on the liquid- phase amrnoximation of cyclohexanone over a titanium silicates- ieve using on-line ATR-FTIR spectroscopy 显示文摘 | Liu Huajie Liu Pingle You Kuiyi | 2010 | Catal Commun2010，11，10： | 1 |
| 9 | Ultrasound-assisted co-precipitation synthesis of mesoporous Co_(3)O_(4)–CeO_(2)composite oxides for highly selective catalytic oxidation of cyclohexane显示文摘The one-step highly selective oxidation of cyclohexane into cyclohexanone and cyclohexanol as the essential intermediates of nylon-6 and nylon-66 is considerably challenging.Therefore,an efficient and low-cost catalyst must be urgently developed to improve the efficiency of this process.In this study,a Co_(3)O_(4)–CeO2 composite oxide catalyst was successfully prepared through ultrasound-assisted co-precipitation.This catalyst exhibited a higher selectivity to KA-oil,which was benefited from the synergistic effects between Co^(3+))/Co^(2+))and Ce^(4+)/Ce^(3+)redox pairs,than bulk CeO2 and/or Co_(3)O_(4).Under the optimum reaction conditions,89.6%selectivity to KA-oil with a cyclohexane conversion of 5.8%was achieved over Co_(3)O_(4)–CeO2.Its catalytic performance remained unchanged after five runs.Using the synergistic effects between the redox pairs of different transition metals,this study provides a feasible strategy to design high-performance catalysts for the selective oxidation of alkanes. | Shangjun Fu Kuiyi You Zhenpan Chen Taobo Liu Qiong Wang Fangfang Zhao Qiuhong Ai Pingle Liu He’an Luo | 2022 | Frontiers of Chemical Science and Engineering2022，16，8： | 1 |
| 10 | Separation and determination of aminoylycoside antibiotics by HPLC显示文摘 | Li Huifen Yu Kuiyi | 1991 | ZhongguoYaoxue Zazhi1991，26，12： | 1 |
| 11 | Driving Forces for the Marsh Wetland Degradation in the Honghe National Nature Reserve in Sanjiang Plain, Northeast China显示文摘 | Demin Zhou Huili Gong Yiyong Wang Shahbaz Khan Kuiyi Zhao | 2009 | Environmental Modeling & Assessment2009，，1： | 1 |
| 12 | Beckmann rearrangement of cyclohexanone oxime to epsilon-caprolactam catalyzed by sulfonic acid resin in DMSO显示文摘 | You Kuiyi Mao Liqiu Yin Dulin | 2008 | Catal Commun2008，9，6： | 1 |
| 13 | Beckmann rearrangement of cyclohexanone oxime to epsilon-caprolactam catalyzed by sulfonic acid resin in DMSO显示文摘 | You Kuiyi Mao Liqiu Yin Dulin | 2008 | Catal Commun2008，9，6： | 1 |
| 14 | Metal salts with highly electronegative cations as efficient catalysts for the liquid-phase nitration of benzene by NO2 to nitrobenzene显示文摘有高度阴电的阳离子的金属盐被用来有效地在没有溶剂的条件下面由没有 2 催化苯的液体阶段硝代到硝基苯。几盐包括 FeCl 3, ZrCl 4, AlCl 3, CuCl 2, NiCl 2, ZnCl 2, MnCl 2, Fe (没有 3)39H2 O ,双性人(没有 3)35H2 O , Zr (没有 3)45H2 O , Cu (没有 3)26H2 O , Ni (没有 3)26H2 O , Zn (没有 3)26H2 O , Fe 2(SO4)3,和 CuSO 4是 examin 到硝基苯的苯变换和选择两个都是超过 99% 。另外,金属 counterion 和在盐的水水合物的存在影响催化活动,这被决定。这个方法简单、有效并且可以有潜在的工业申请前景。 | Shenghui Zhou Kuiyi You Zhengming Yi Pingle Liu Hean Luo | 2017 | Frontiers of Chemical Science and Engineering2017，11，2： | 0 |
| 15 | Studies on Wetland Biodiversity in China显示文摘This paper briefly summarizes the history of wetland research, the evolvement of wetland science, and their impacts on the understanding of wetland biodiversity in China. A marsh is the key type and basic component of a wetland. Defining the marsh and wetland plants is the basis for understanding the wetland and its biodiversity. The comprehensive multiple factorial classification principles and the multiple developmental models of the wetland are two innovative feats achieved by Chinese scientists, and their application has further promoted ecological research. The CAS Wetland Research Center has made historic contributions to the study of the wetland and its biodiversity in China. Also, the paper discusses several important tasks of wetland and biodiversity research. | ZHAO Kuiyi HE Shunping LI Wei | 2010 | Bulletin of the Chinese Academy of Sciences2010，24，4： | 0 |
| 16 | MECHANICAL PROPERTIES AND INTERFACIAL STRUCTURES OF ALUMINIUM BORATE WHISKER REINFORCED ALUMINIUM COMPOSITES显示文摘Quality 9Al2O3-2B2O3 whisker reinforced 6061Al or Al composites have beenprepared by technique of squeeze casting.The mechanical properties of the9Al2O3·2B2O3(w)/6061Al composites could be hardly improved by T6 treatment,owingto cause the remarkable interracial reaction.An observation under high resolution trans-mission electron microscope on interfaces shows that the serious chemical reaction occursand the product is Al2MgO4.But no such reaction is found at the interfaces of 9Al2O3.2B2O3(w)/Al composite.EDS analysis on the interfaces shows that above mentionedinterracial reaction may be resulted from the interracial segregation of Mg atoms in6061Al matrix during sequeeze casting. | PAN Jin NING Xiaoguang HU Kuiyi YE Hengqiang | 1993 | Acta Metallurgica Sinica(English Letters)1993，6，12： | 0 |
| 17 | Mesoporous silicon sulfonic acid as a highly efficient and stable catalyst for the selective hydroamination of cyclohexene with cyclohexylamine to dicyclohexylamine in the vapor phase显示文摘In this work,a new mesoporous silicon sulfonic acid catalyst derived from silicic acid has been successfully prepared by the chemical bonding method.The physicochemical properties of mesoporous silicon sulfonic acid catalysts have been systematically characterized using various techniques.The results demonstrate that sulfonic acid groups have been grafted on silicic acid by forming a new chemical bond(Si-O-S).The mesoporous silicon sulfonic acid exhibits excellent catalytic performance and stability in the vapor phase hydroamination reaction of cyclohexene with cyclohexylamine.Cyclohexene conversion of 61% and 97% selectivity to dicyclohexylamine was maintained after running the reaction for over 350 h at 280℃.The developed mesoporous silicon sulfonic acid catalyst shows advantages of low cost,superior acid site accessibility,and long term reactivity stability.Moreover,a possible catalytic hydroamination reaction mechanism over silicon sulfonic acid was suggested.It has been demonstrated that the sulfonic acid groups of the catalyst play an important role in the hydroamination.The present work provides a simple,efficient,and environmentally friendly method for the hydroamination of cyclohexene to valuable dicyclohexylamine,which also shows important industrial application prospects. | Jingbin Wen Kuiyi You Minjuan Chen Jian Jian Fangfang Zhao Pingle Liu Qiuhong Ai He’an Luo | 2021 | Frontiers of Chemical Science and Engineering2021，15，3： | 0 |
| 18 | A highly efficient La-modified ZnAl-LDO catalyst and its performance in the synthesis of dimethyl carbonate from methyl carbamate and methanol显示文摘In this paper,the highly efficient ZnAlLa layered double oxide(ZnAlLa-LDO)catalyst was evaluated and used in methyl carbamate(MC)alcoholysis synthesis of dimethyl carbonate.Under optimal conditions,the MC conversion was 33.5% and the dimethyl carbonate(DMC)selectivity was up to 92,4% at 443 K and in 9 h.The prepared catalysts were well characterized to investigate the effect on the catalytic performance and reaction catalysis mechanism.The experimental results show that the addition of La adjusted the structure and chemical properties of ZnAl composite oxide and that the synergistic effect among Zn,Al and La play a key role in adjusting the acid-base properties and stability of the catalyst,which definitely improved the DMC selectivity and catalytic stability.Based on the proposed reaction mechanism,two kinetic models of the catalytic reaction were established and modified:LangmuirHinshelwood and power-rate law kinetic model.The good agreement between kinetic models and experimental data showed that the power-rate law kinetic model based on the elementary reactions is a suitable model for providing a theoretical basis.The pre-exponential factor and activation energy of the main reaction are 5.77×10^(7)and 77.60 kJ·mol^(-1),respectively. | Mingxue Yin Bo Jia Kuiyi You Bo Jin Yangqiang Huang Xiao Luo Zhiwu Liang | 2023 | Chinese Journal of Chemical Engineering2023，61，9： | 0 |
| 19 | Solvent-free partial oxidation of cyclohexane to KA oil over hydrotalcitederived Cu-MgAlO mixed metal oxides显示文摘A highly efficient and stable hydrotalcite-derived Cu-MgAlO catalyst was developed for the partial oxidation of cyclohexane with molecular oxygen.The physical–chemical properties of Cu-MgAlO catalysts were studied,and the results indicated that the copper component had been successfully introduced into the hydrotalcite unit layer structure.The catalytic reaction results showed that copper as the active species could activate CAH bond and effectively promote the decomposition of cyclohexyl hydroperoxide(CHHP)to the mixture of cyclohexanol and cyclohexanone(KA oil).8.3%of cyclohexane conversion and 82.9%of selectivity for KA oil were obtained over 9%Cu-MgAlO catalyst at 150℃with 0.6 MPa of oxygen pressure for 2 h.Especially,its catalytic performance was still stable after five runs. | Jian Jian Dexing Yang Peng Liu Kuiyi You Weijie Sun Hu Zhou Zhengqiu Yuan Qiuhong Ai Hean Luo | 2022 | Chinese Journal of Chemical Engineering2022，35，2： | 0 |
| 20 | One-step synthesis of c-caprolactam via the liquid phase catalytic nitrosation of cyclohexane in the presence of concentrated sulfuric acid显示文摘 | Kuiyi YOU Fangfang ZHAO Xueyan LONG Pingle LIU Qiuhong AI Hean LUO | 2012 | Frontiers of Chemical Science and Engineering2012，6，4： | 0 |
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