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    题名 作者 年代 出处 被引量
1Large and ultrafast third-order optical non-linearity of singlewall carbon nanotubes at 820 rim 显示文摘Shi Zujin Lian Yongfu Zhou Xihuang 2000Chem Commu2000,,:1
2The role of herbivores in the grassland carbon budget for Three-Rivers Headwaters region,Qinghai-Tibetan Plateau,China显示文摘Background:An accurate assessment of the carbon budget is a crucial part of projecting future climate change and its impact on ecosystems.Grasslands foster multiple ecological functions including support for wild animals and livestocks.Herbivores intake forage biomass carbon,then digest and metabolize,and finally retain some carbon.The carbon processes have not been well quantified,resulting in uncertainties in the estimation of regional carbon budgets for grassland ecosystems.Methods:An animal metabolic carbon flux model was developed for herbivores in the Three-Rivers Headwaters region of China.The forage intake and metabolic carbon rates were estimated through metabolic body weight and daily digested measures for the main herbivore species.Results:The carbon intake was 5.52 Tg C year−1(45%)from partial aboveground biomass(12.2 Tg C year−1),in which 39.31%was released into the atmosphere by respiration CO_(2),43.77%was returned to the ecosystem as feces and urine,and 16.96%was retained in herbivores for population regeneration or for human well-being.Conclusions:This study,as the first research on this topic,quantified the carbon flux of herbivores and found livestock accounts for a major part of consumed carbon on grasslands,which is important for understanding regional carbon budgets to mitigate and adapt to climate change over grasslands worldwide.Junbang Wang Xinquan Zhao Xihuang Ouyang Liang Zhao Wenying Wang Chan Zuo Zhenhua Zhang Huakun Zhou Alan Watson Yingnian Li 2022Grassland Research2022,1,3:1
3Mass-production of single-wall carbon nanotubes by arc discharge method 1 1 This work was supported by the National Natural Science Foundation of China, No. 29671030.显示文摘Zujin Shi Yongfu Lian Xihuang Zhou Zhennan Gu Yaogang Zhang Sumio Iijima Lixia Zhou Kwok To Yue Shulin Zhang 1999Carbon1999,,9:1
4The measure of electrolytic separation factor of high concentration heavy water显示文摘Zhang Qinglian Zhou Xihuang He Xihua 1994Chemistry Letters1994,,1:1
5A new flow-based fast handover method for mobile Ipv6 network with route optimization 显示文摘CtiEN Jin ZHANG Xihuang 2007Computer Communications2007,30,18:1
6Water sorptivity and chloride diffusivity of oil shale ash concrete显示文摘Sammy Yin Nin ChanU Ji Xihuang 1998Construct Build Mater1998,12,:1
7降铁对铁蓄积致小鼠骨量下降的影响显示文摘我们在铁蓄积致骨量下降的基础上采用降铁药物甲磺酸去铁胺(DFO)干预,观察降铁对血清骨转换指标和骨量的影响。一、材料与方法1.材料:Micro-CT(SKYSCAN),电感耦合等离子体发射光谱仪(美国Perkin Elmer公司),2个月龄雄性ICR小鼠(苏州大学实验动物中心),刘禄林 王啸 高超 李光飞 俞晨 沈光思 张鹏 吴明霞 王爱东 XiHuang 徐又佳 2014中华实验外科杂志2014,31,7:1
8Adsorption of Oxygen on K_(x)C_(60) Studied by Photoelectron Spectroscopy显示文摘Photoemission spectra of vacuum deposited K-incorporated C_(60)-K_(x)C_(60)(x≈6),before and after exposure to oxygen,show that the interaction between oxygen and potassium forms an overlayer of 40 A K-O complex with stoichiometry near to that of potassium peroxide K_(2)O_(2) on the surface.In contrary to the oxidation of potassium film,no potassium oxide K_(2)O has been observed.YAO Jun LIU Fengqin DENG Junzhuo XUN Kun WANG Zuquan LU Sihua WU Sicheng JIANG Mingluo GU Zhengnan ZHOU Xihuang 1992Chinese Physics Letters1992,9,6:0
9Application of sequential extraction for analyzing source and sink of uranium in Huanghe River sediments,China显示文摘Geochemical behaviors of heavy metals are closely related to their chemical state that can be divided by sequential extraction into exchangeable(F1),bound to carbonates(F2),bound to Fe-Mn oxides(F3),bound to organic matter or sulfide(F4),and residual(F5).Uranium in sediment of the Huanghe(Yellow)River,China,in different chemical states was extracted using the five-step procedure of Tessier and the source and sink were analyzed.Results show that more than 70%of the total uranium was immobile residual F5 in abundance,followed in order of F4>F3>F2>F1,indicating that the main source of uranium in the sediments was from weathered rock in the drainage basin.In addition,the uranium in the sediments presents potential exogenous input in the Lanzhou,Baotou,and Tongguan reach.Fe-Mn oxides are main carriers of unstable uranium,especially those of F1 and F3.Calcite and illite are secondary adsorption minerals of unstable uranium in sediments under natural conditions.Human activities can also produce an obvious impact on uranium speciation.This study provides a reference for the application of sequential extraction in analyzing the source and sink of uranium in river sediments.Xihuang ZHONG Xueyan JIANG Huijun HE Wenwen ZHANG Chunxia MENG Feng SUN 2023Journal of Oceanology and Limnology2023,41,3:0
10Photoemission Evidence for Dilute K-doped Phase Kx C_(60) with x<0.2显示文摘A shift about 0.3eV to higher binding energy is reported in the valence band and Cls core level of Kx C_(60)(x<0.2).Analysis shows that the result could not be interpreted by a mixture of C_(60) and K3 C_(60).A dulite K-doped phase and fermi level pinning near the lowest unoccupied molecular orbital derived band caused by K-doping are proposed.WANG Zuquan LIU Fengqin DENG Junzhuo YAO Jun XUN Kun LÜSihua WU Sichengi JIANG Mingluo GU Zhengnan ZHOU Xihuang 1992Chinese Physics Letters1992,9,9:0
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