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Analysis on Carbon Emissions from Energy Consumption in Agriculture and Reduction Measures in Guangdong Province

Meteorological and Environmental Research 2011年第7期2卷 66-69,73页

作者： xie shu-juan1,2,3 1.guangzhou institute of geochemistry,chinese academy of sciences,guangzhou 510640,china 2.Graduate University of chinese academy of sciences,Beijing 100049,china 3.Guangdong academy of Social sciences,guangzhou 510610,china

[Objective] The aim was to study CO2 emissions from energy consumption in agricultural production in Guangdong Province and put forward feasible reduction measures.[Method] Based on the data from china Energy Statistical Yearbook and Guangdong Statistical Yearbook,CO2 emissions from agricultural energy use in Guangdong Province from 2000 to 2009 was estimated by using the formula of carbon emissions recommended by Intergovernmental Panel on Climate Change (IPCC),and corresponding reduction measures were put forward.[Result] With the rapid increase of agricultural output and energy consumption,CO2 emissions from energy consumption in agricultural production in Guangdong Province showed increasing trend from 2000 to 2009,that is to say,increasing from 423.63×104 t C million tons in 2000 to 605.99×104 t C in 2009,with annual growth rate of 4.1%.Meanwhile,carbon emissions intensity during energy consumption in agriculture went down in recent ten years,in other words,decreasing from 0.424 t C/×104 yuan in 2000 to 0.301 t C/×104 yuan in 2009,and its annual decreasing rate was 3.7%.The variation of CO2 emissions from energy consumption in agriculture mainly resulted from the increase of agricultural output,improvement of energy utilization efficiency,high carbonization in agricultural energy consumption structure and so ***,in order to reduce CO2 emissions from energy consumption in agriculture,it is necessary to vigorously develop rural renewable energy,develop and popularize advanced technology for energy utilization,advance the energy conservation of agricultural machines,establish and improve the macroeconomic control mechanism for carbon emissions from the energy consumption in agricultural production in the further.[Conclusion] The study could provide references for the establishment of policy about reducing carbon emissions from agricultural energy consumption in Guangdong Province.

关键词： Energy consumption in agriculture Energy consumption structure CO2 emissions Carbon emissions intensity china

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Synchrotron radiation X-ray diffraction in situ study of fine-grained minerals in shock veins of Suizhou meteorite

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Science china Earth sciences 2005年第6期48卷 815-821页

作者： xie Xiande1, shu Jinfu2 & CHEN Ming1 1. guangzhou institute of geochemistry, chinese academy of sciences, guangzhou 510640, china 2. Geophysical Laboratory, Carnegie Institution of Washington, Washington, DC, 20015, USA Correspondence should be addressed to xie Xiande 1. guangzhou institute of geochemistry Chinese Academy of Sciences 510640 Guangzhou China 2. Geophysical Laboratory Carnegie Institution of Washington 20015 Washington DC USA

The synchrotron radiation X-ray diffraction technique developed for in situ study ahigh pressure and temperature has also been used to investigate microscopic mineral inclusionsin ultrahigh-pressure metamorphic rocks and deep-mantle samples. Present study added twomore examples of successful utilization of synchrotron radiation X-ray diffraction technique for insitu investigations of fine-grained (0.5―30 μm in size) minerals in very thin shock melt veins othe Suizhou meteorite: ( i ) X-ray diffraction measurement of extremely small-sized vein matrixminerals, and (ii) identification of the micron-sized new mineral tuite embedded in the vein matrixIt has been revealed that the fine-grained vein matrix consists of well crystallized garnet, kamacite and troilite, and the powder diffraction pattern consisting of 17 lines with d-values, intensities( I ), relative intensities (I/Io) and Miller indices, as well as the cell parameters for the new mineratuite has also been successfully obtained. The result of present investigations has enriched thecontent of dynamic high-pressure mineralogy and that of Earth’s mantle geochemistry.

关键词： synchrotron radiation, X-ray diffraction, fine-grained minerals, Suizhou meteorite.

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Ultra-high-rate Bi anode encapsulated in 3D lignin-derived carbon framework for sodium-ion hybrid capacitors

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Rare Metals 2024年第3期43卷 1037-1047页

作者： Ze-Hua Lin Xue-Qing Qiu Xi-Hong Zu Xiao-Shan Zhang Lei Zhong Shi-Rong Sun shu-Hua Hao Ying-juan Sun Wen-Li Zhang School of Chemical Engineering and Light Industry Guangdong University of Technology(GDUT)Guangzhou510006China Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory(Rongjiang Laboratory) Jieyang515200China School of Advanced Manufacturing Institute of Green Chemistry and Advanced MaterialsGuangdong University of TechnologyJieyang515200China

Bismuth(Bi),as an alloy-based anode material,has attracted much atte ntion in the developme nt of sodiumion hybrid capacitors(SIHCs)due to its high theoretical ***,the volume expansion of the Bi-based anode during the sodiation/desodiation process results in limited rate *** the present work,a porous Bi-based composite was constructed by a one-step hydrothermal method,and Bi was encapsulated in ligninderived nitrogen-doped porous carbon(Bi@LNPC)after *** obtained Bi nanoparticles could effectively adapt to the strain and shorten the diffusion distance of Na^(+).In addition,porous carbon skeleton provides a rigid conductive network for electronic ***,the assembled sodium-ion half-cell with Bi@LNPC anode shows ultra-high-rate *** the current density was enhanced from 0.1 to 50 A·g^(-1),the specific capacity decreased slightly from 351.5 to 342.8 mAh·g^(-1).Even at an extremely high current density of 200 A·g^(-1),it retains 81.3%capacity retention when compared to a current density of 1 A·g^(-1).The SIHCs assembled by Bi@LNPC show a high energy density of 63 Wh·kg^(-1).This work provides an effective method for developing high-rate Bi anode materials for sodium-ion hybrid capacitors(SIHCs)and sodium-ion batteries(SIBs).

关键词： Bismuth Lignin Sodium-ion batteries Sodium-ion hybrid capacitors Rate Porous carbon

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不同气候和植被区现代土壤类脂物分子特征及其意义

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土壤学报 2003年第6期40卷 967-970页

作者：王志远刘占红易轶谢树成中国科学院广州地球化学研究所广州510640 中国地质大学地球科学学院武汉430074

应用分子化石探讨古植被、古气候等全球变化问题的研究日益开展。研究的载体已经涉及到海相沉积物、湖相沉积物、欧洲泥炭、雪冰、黄土等沉积物，并且取得了许多重要的成果。有机化合物种类众多，分子结构精细，其中包括着丰富而形式众... 详细信息

应用分子化石探讨古植被、古气候等全球变化问题的研究日益开展。研究的载体已经涉及到海相沉积物、湖相沉积物、欧洲泥炭、雪冰、黄土等沉积物，并且取得了许多重要的成果。有机化合物种类众多，分子结构精细，其中包括着丰富而形式众多的与古气候、古生态、古植被和古环境有关的信息，因而在全球环境研究中分子有机地球化学有着广阔的应用前景。

关键词：气候条件植被区土壤类脂物分子特征

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Heterophase junction engineering-induced Co spin-state modulation of CoSe_(2) for large-current hydrogen evolution reaction

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Rare Metals 2024年第6期43卷 2660-2670页

作者： Bao-Chai Xu Ya-Ping Miao Min-Qin Mao Dong-Lian Li Song xie Wei-Hong Jin shu Xiao Jing Wen Zaenab Abd-Allah Zhi-Tian Liu Xiang Peng Paul K.Chu Hubei Key Laboratory of Plasma Chemistry and Advanced Materials School of Materials Science and EngineeringWuhan Institute of TechnologyWuhan 430205China School of Textile Science and Engineering Xi'an Polytechnic UniversityXi'an 710048China institute of Advanced Wear and Corrosion Resistant and Functional Materials Jinan UniversityGuangzhou 510632China institute of Safety Science and Engineering South China University of TechnologyGuangzhou 510641China Department of Engineering Manchester Metropolitan UniversityManchester M156BHUK Department of Physics Department of Materials Science and Engineeringand Department of Biomedical EngineeringCity University of Hong KongHong Kong 999077China

Efficient electrocatalysts are vital to large-current hydrogen production in commercial water splitting for green energy ***,a novel heterophase engineering strategy is described to produce polymorphic CoSe_(2)*** composition of the electrocatalysts consisting of both cubic CoSe_(2)(c-CoSe_(2))and orthorhombic CoSe_(2)(o-CoSe_(2))phases can be controlled *** results demonstrate that junction-induced spin-state modulation of Co atoms enhances the adsorption of intermediates and accelerates charge transfer resulting in superior large-current hydrogen evolution reaction(HER)***,the CoSe_(2)based heterophase catalyst with the optimal c-CoSe_(2)content requires an overpotential of merely 240 mV to achieve 1,000 mA·cm^(-2)as well as a Tafel slope of 50.4 mV·dec^(-1).Furthermore,the electrocatalyst can maintain a large current density of 1,500 mA·cm^(-2)for over 320 h without *** results reveal the advantages and potential of heterophase junction engineering pertaining to design and fabrication of low-cost transition metal catalysts for large-current water splitting.

关键词： Heterophase junction Spin-state Hydrogen evolution reaction Large current electrochemical hydrogen production Water splitting

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Immunosuppression in Human Peripheral Blood T Lymphocytes by Fluvastatin

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Acta Biochimica et Biophysica Sinica 2004年第10期36卷 649-655页

作者： Li-Hua WU, Yun-Le WAN1, Hai-Yang xie, Wen-Jin ZHANG, and shu-Sen ZHENG* institute of Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, china 1Centre of organ transplantation, The Second Affiliated Hospital, School of Medicine, Zhongshan University, guangzhou 510000, china institute of Surgery The First Affiliated Hospital School of Medicine Zhejiang University Centre of organ transplantation The Second Affiliated Hospital School of Medicine Zhongshan University

To investigate the immunosuppressive effect of fluvastatin on the PHA-activated T lymphocytes. T lymphocytes were isolated from the blood of healthy volunteers, cell proliferation and the activation mar- kers expression were examined by flow cytometric analysis. Cytokine secretion was assayed by ELISA. LDH-release assay was used to detect activity of killer cells. NFAT activation was evaluated by TransAMTM ELISA kit. Results were as following. (1) Whereas no modification in CD25 expression was seen, fluvastatin at 5 μM caused a lower level of CD69 expression, accompanied by an essential suppression on proliferation, IL-2 production and cytotoxicity development in PHA-stimulated T cells. However, the level of secreted IL-10 had no change, and the level of IL-4 even experienced a significant increase. (2) Combined with cyclosporine A (CsA), fluvastatin would further repress CD69 expression, cells proliferation and activity of killer cells, meanwhile significantly induced the secretion of IL-4 and IL-10. (3) Fluvastatin treatment also resulted in a strong inhibition of NFAT activation. In conclusion, partly involving the blockage of activation of NFAT, fluvastatin exhibited an immunosuppressive effect in vitro.

关键词： fluvastatin T cell activation T cell proliferation cytokine nuclear factor of activated Tlymphocytes

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A cloud of laser cooled 40Ca+ in a linear ion trap

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Science Bulletin 2010年第Z2期 3094-3097页

作者： ZHOU Fei 1,2,XU YouYang 1,2,xie Yi 1,2,GUO Bin 1,2,shu HuaLin 3,LI JiaoMei 1,HUANG XueRen 1 &FENG Mang 11 State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,Wuhan institute of Physics and Mathematics,chinese academy of sciences,Wuhan 430071,china 2Graduate University of the chinese academy of sciences,Beijing 100049,china 3 School of Physics and Telecommunication Engineering,South china Normal University,guangzhou 510006,china

A cloud of 40Ca+is successfully trapped and cooled using the radiation of a red-detuned 397 nm laser beam and a resonant 866 nm laser beam in our prototype linear ion trap,which was designed and constructed for studying quantum information *** have characterized the size of the ion cloud,estimating the temperature to be in the order of milli-Kelvins.

关键词： ion trap laser cooling quantum information processing

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Influence of expressed TRAIL on biophysical properties of the human leukemic cell line Jurkat

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Cell Research 2004年第2期14卷 161-168页

作者： Kai CHEN~(1,*), Dan LI~(1,*), Yu Hui JIANG~1, Wei juan YAO~1, Xin juan WANG~2, Xiao Chao WEI~2, Jing GAO~3, Li De xie~1, Zong Yi YAN~4, Zong Yao WEN~(1**), shu CHIEN~5 ~1Hemorheology Center, Department of Biophysics, School of Basic Medical sciences, Peking University, Beijing, 100083, china. ~2Department of Biochemical and Molecular Biology, School of Basic Medical sciences, Peking University, Beijing, 100083, china. ~3Department of Urology, Medical Center, New York University, USA. ~4Department of Mechanics and Engineering Science, Peking University, Beijing 100871, china. ~5Department of Bioengineering and Whitaker institute of Biomedical Engineering, University of California, San Diego, La Jolla, CA 92093-0412, USA 1Hemorheology Center Department of Biophysics School of Basic Medical Sciences Peking University Beijing 100083 China. 1Hemorheology Center Department of Biophysics School of Basic Medical Sciences Peking University Beijing 100083 China. 1Hemorheology Center Department of Biophysics School of Basic Medical Sciences Peking University Beijing 100083 China. 1Hemorheology Center Department of Biophysics School of Basic Medical Sciences Peking University Beijing 100083 China. 2Department of Biochemical and Molecular Biology School of Basic Medical Sciences Peking University Beijing 100083 China. 2Department of Biochemical and Molecular Biology School of Basic Medical Sciences Peking University Beijing 100083 China. 3Department of Urology Medical Center New York University USA. 1Hemorheology Center Department of Biophysics School of Basic Medical Sciences Peking University Beijing 100083 China. 4Department of Mechanics and Engineering Science Peking University Beijing 100871 China. 1Hemorheology Center Department of Biophysics School of Basic Medical Sciences Peking University Beijing 100083 China. 5Department of Bioengineering and Whitaker institute of Biomedical Engineering University of California San Diego La Jolla CA 92093-0412 USA

The cDNA fragment of human TRAIL (TNF-related apoptosis inducing ligand) was cloned into RevTet-On, a Tetregulated and high-level gene expression system. The gene expression system was constructed in a human leukemic cell line: Jurkat. By using RevTet-On TRAIL gene expression system in Jurkat as a cell model, we studied the influence of TRAIL gene on the changes of cellular apoptosis before and after the TRAIL gene expression, which was induced by adding tetracycline derivative doxycycline (Dox). The results indicated that the cellular apoptosis ratio was largely dependent on the TRAIL gene expression level. Moreover, it was found that the apoptosis-inducing TRAIL could cause significant changes in the biophysical properties of Jurkat cells. The cell surface charge density decreased, the membrane fluidity declined, the elastic coefficients K_I increased, and the proportion of α-helix in membrane protein secondary structure decreased. Thus, the apoptosis-inducing TRAIL gene caused significant changes on

关键词： TRAIL Tet gene expression system Jurkat apoptosis.

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珠江虎门潮汐水道水体中多环芳烃的分布及季节变化

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海洋学报 2004年第6期26卷 37-48页

作者：杨清书欧素英谢萍麦碧娴傅家谟盛国英中山大学河口海岸研究所广东广州510275 中国科学院广州地球化学研究所有机地球化学重点实验室广东广州510640

采用GF/F玻璃滤膜对珠江虎门潮汐水道6个表层水样进行过滤分离出多环芳烃的颗粒相和溶解相,并根据美国EPA标准对多环芳烃进行了定量分析.结果显示,洪、枯季水体中16种优先控制多环芳烃总量分别是223～614,6559～20031ng/dm3;洪、枯季多... 详细信息

采用GF/F玻璃滤膜对珠江虎门潮汐水道6个表层水样进行过滤分离出多环芳烃的颗粒相和溶解相,并根据美国EPA标准对多环芳烃进行了定量分析.结果显示,洪、枯季水体中16种优先控制多环芳烃总量分别是223～614,6559～20031ng/dm3;洪、枯季多环芳烃总量分别为786～2098,11360～34338ng/dm3;广州前航道的污染较狮子洋严重.珠江虎门潮汐水道水体中多环芳烃的含量、分布具有明显的季节变化特征,枯季多环芳烃的浓度高于洪季1个数量级以上,且二环多环芳烃的含量占95%以上,主要呈溶解相形式出现;洪季高环多环芳烃的含量明显升高,主要呈颗粒相形式输运.

关键词：多环芳烃水样季节变化珠江虎门潮汐水道

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基于LQR的三有源桥变换器控制

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新能源进展 2024年第2期12卷 235-240页

作者：解非王浩舒杰中国科学院广州能源研究所广州510640 中国科学院大学北京100049 中国科学院可再生能源重点实验室广州510640 广东省新能源和可再生能源研究开发与应用重点实验室广州510640

针对三有源桥变换器解耦控制中工况远离稳态点解耦矩阵变化时控制性能较差的问题,提出一种基于线性二次型调节器(LQR)的三有源桥变换器控制方法。通过电路等效变换和端口功率传输方程建立状态空间模型,进一步设计基于状态反馈的LQR控制... 详细信息

针对三有源桥变换器解耦控制中工况远离稳态点解耦矩阵变化时控制性能较差的问题,提出一种基于线性二次型调节器(LQR)的三有源桥变换器控制方法。通过电路等效变换和端口功率传输方程建立状态空间模型,进一步设计基于状态反馈的LQR控制方法,在实现功率潮流控制的同时保持端口电压的稳定,通过仿真控制验证所提出方法的控制性能,对比传统PI解耦控制,在工况变化时,该控制方法具有更好的动态性能。

关键词：三有源桥变换器解耦控制状态空间方程线性二次型调节器

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