排序方式: 共有63条查询结果,搜索用时 709 毫秒
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Inside Cover: Incorporation of N‐Methyl‐d‐glucamine Functionalized Oligomer into MIL‐101(Cr) for Highly Efficient Removal of Boric Acid from Water (Chem. Eur. J. 43/2016) 下载免费PDF全文
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Incorporation of N‐Methyl‐d‐glucamine Functionalized Oligomer into MIL‐101(Cr) for Highly Efficient Removal of Boric Acid from Water 下载免费PDF全文
Jiawei Wang Dr. Zongbi Bao Prof. Huabin Xing Dr. Baogen Su Dr. Zhiguo Zhang Dr. Qiwei Yang Prof. Yiwen Yang Prof. Qilong Ren Prof. Banglin Chen 《Chemistry (Weinheim an der Bergstrasse, Germany)》2016,22(43):15290-15297
Polymeric resins are practically important adsorbents in a wide variety of applications, but they generally suffer from low surface areas and limited functionalized adsorption sites owing to their closely compacted and tangled polymeric chains. A metal–organic framework (MOF)–polymer composite with enhanced adsorption capacity against the compacted polymeric resins was reported. The strategy to incorporate functionalized oligomer within the cavities of the MOF was demonstrated by the preparation of MIL‐101(Cr) incorporated with N‐methyl‐d ‐glucamine‐based organosiloxane polymer. The resulting MOF composite shows high efficiency for the removal of boric acid from water because of exceptionally high loading of functional groups responsible for the boron adsorption. This material offers promising perspectives for boron removal applications in seawater desalination. 相似文献
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合肥光源升级改造任务已基本完成,注入器实现满能量注入。为适应新的注入器束流强度的测量需求,设计了新的注入器束流强度测量系统,该系统利用安装在真空腔上的3个快速束流变压器(FCT)和2个积分束流变压器(ICT),能够实现束流流强和电荷量的非拦截实时测量。为了准确获取束流参数,首先对束流变压器(CT)传输电缆进行了在线和离线标定;由于ICT输出信号信号幅度较小,噪声大,设计了低噪声前置放大器以改善信噪比;考虑低频谐波噪声和Kicker噪声的干扰,软件中通过适当的算法对噪声进行了处理;最后给出了部分在线实验结果。实验结果表明,束流传输效率约为27.4%,注入效率约为44.3%。 相似文献
44.
A-ru Yan Wen-yong Zhang Hong-wei Zhang Baogen Shen 《Journal of magnetism and magnetic materials》2000,210(1-3)
We have succeeded in preparing magnetically anisotropic SmCo5 ribbons with high permanent performance by single-roller melt spinning at low wheel velocity. The anisotropy is associated with a crystallographic texture formed during melt-spinning process, with the c-axis parallel to the longitudinal direction of the ribbons. The formation of the crystallographic texture is attributed to a directional solidification process resulting from a thermal gradient. A remanence of 9.1 kG, remanence ratio of 0.9, intrinsic coercivity of 16.2 kOe and energy product of 18.2 MGOe at room temperature are obtained in the melt-spun and subsequently annealed SmCo5 ribbons prepared at 5 m/s. 相似文献
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Two classes of edge domination in graphs 总被引:2,自引:0,他引:2
Baogen Xu 《Discrete Applied Mathematics》2006,154(10):1541-1546
Let (, resp.) be the number of (local) signed edge domination of a graph G [B. Xu, On signed edge domination numbers of graphs, Discrete Math. 239 (2001) 179-189]. In this paper, we prove mainly that and hold for any graph G of order n(n?4), and pose several open problems and conjectures. 相似文献
47.
The solubilities of cholesterol and desmosterol in binary solvent mixtures of n-hexane + ethanol at temperatures of 293.2–323.2 K were determined by a static equilibrium method. The solubilities increase with temperature and go through a maximum at a specific solvent composition. The fusion enthalpy ΔfusH and the melting point Tm, determined by differential scanning calorimeter (DSC), are 28.5 kJ/mol, 421.7 K for cholesterol and 15.9 kJ/mol, 388.2 K for desmosterol, respectively. The solubilities of cholesterol and desmosterol in pure n-hexane or ethanol follow a linear Van’t Hoff relation with temperature. Activity models, such as Wilson, NRTL and UNIQUAC models were used to correlate and predict the solubilities of cholesterol and desmosterol in n-hexane + ethanol mixed solvents. The interaction parameters were expressed as a function of temperature. 相似文献
48.
On signed cycle domination in graphs 总被引:2,自引:0,他引:2
Baogen Xu 《Discrete Mathematics》2009,309(4):1007-1387
Let G=(V,E) be a graph, a function f:E→{−1,1} is said to be an signed cycle dominating function (SCDF) of G if ∑e∈E(C)f(e)≥1 holds for any induced cycle C of G. The signed cycle domination number of G is defined as is an SCDF of G}. In this paper, we obtain bounds on , characterize all connected graphs G with , and determine the exact value of for some special classes of graphs G. In addition, we pose some open problems and conjectures. 相似文献
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On edge domination numbers of graphs 总被引:1,自引:0,他引:1
Baogen Xu 《Discrete Mathematics》2005,294(3):311-316
Let and be the signed edge domination number and signed star domination number of G, respectively. We prove that holds for all graphs G without isolated vertices, where n=|V(G)|?4 and m=|E(G)|, and pose some problems and conjectures. 相似文献