碳交易规制下信息不对称供应链的减排和低碳推广博弈研究

论文在碳交易规制下,研究单一制造商和双零售商组成的供应链减排与低碳推广决策以及零售商对制造商的成本信息分享问题,分析了零售商对制造商分享成本信息的条件,及不同情形下的制造商减排和零售商低碳推广策略。研究发现:零售商的最优低碳推广水平只与自身相关参数有关,零售商只有在自身低碳推广效率足够高时才会与制造商分享信息;制造商最优减排量随消费者低碳意识、碳交易价格、零售商低碳推广效率及其不确定性增大而提高,随零售商之间竞争程度提高而降低;无论零售商是否对制造商分享成本信息,供应链成员的最优利润随零售商之间竞争程度提高而增加,随消费者低碳意识、碳交易价格提高而提高;零售商低碳推广效率的不确定性越大则制造商的最优利润越低,零售商的最优利润越高;仅一家零售商分享成本信息时,制造商无法通过转移支付使另一家零售商与其分享信息。     

基于MAP-PRF复合的新型创口敷料合成及毒性研究

针对创口处理和修复中保护创面、防止感染和促进愈合等问题,基于仿生合成MAP粘合材料防水、快速闭合创口及生物源PRF快速止血、促进愈合的特性,设计并合成一种新型MAP-PRF复合创口敷料。采用^1H NMR表征材料结构,UV-Vis验证MAP聚氨酯侧链邻二酚粘合单元引入,GPC表征聚合材料分子量分布。细胞毒性分析和热分析数据表明:MAP-PRF复合材料的热稳定性良好、毒性低,可进一步用于生物医药领域的软组织快速粘合修复及硬组织粘接。     

分析师职业晋升和新财富排行榜关系研究

以2005-2015上市公司的财报数据、分析师的盈利预测数据、新财富分析师的上榜数据为样本,研究影响分析师职业生涯的诸多因素以及机构投资者对分析师的评价标准.实证结果发现,分析师盈余预测的准确性提高了分析师晋升的可能性,在保证准确性的基础上,分析师发布研报的频率也提高了晋升的可能性.分析师上榜新财富有持续效应,上榜新财富的分析师后续上榜的可能性更高,上榜新财富有助于分析师晋升.整体上,现有的评价机制有助于挑选能力强的分析师,但无助于淘汰做到一定职位工作水准下降的分析师,整体上现有考核机制体现出"优胜",没有"劣汰".研究结论有助于资本市场参与者了解影响分析师职业生涯的主要因素以及分析师明星效应的持续性,从而为自己的投资决策提出指导.     

碳限额及交易下零售商低碳宣传的双渠道供应链决策与协调

在碳限额及交易下,考虑制造商碳减排技术投入和零售商低碳宣传,分别构建了无低碳宣传成本分摊、低碳宣传成本分摊的分散决策和集中式决策博弈模型,通过对模型的分析,指出通过碳减排成本和低碳宣传成本分摊能够实现双渠道供应链协调.研究结果表明:在碳限额及交易机制下,碳减排率与碳排放交易价格成正向变化关系,低碳宣传水平、双渠道供应链...     

利用程序升温还原方法研究钴,钌,钼加氢脱硫催化剂氧化态的还原过程

钴或镍在加氢脱硫(HDS)催化剂中的助剂作用文献已有很多的讨论。近年来,研究结果发现,少量的钌加入到Mo/Al_2O_3和Co-Mo/Al_2O_3催化剂上可以显著地提高其加氢脱硫活性,可是关于钌的助剂作用前人研究的较少。因此对比研究钴和钌的的助剂作用有助于认识各种不同类型的助剂在加氢脱硫催化剂中的功能。本文应用程序升温还原方法对钴和钌在加氢脱硫催化剂的前身态氧化物还原过程中的助剂作用进行了考察。     

Lithium promoted Pt?Sn/Al2O3 catalysts for dehydrogenation ofn-decane: Influence of lithium metal precursors

Four lithium metal precursors (LiNO₃, CH₃COOLi, LiOH, LiCl) have been used as promoters in Pt–Sn/Al₂O₃ catalysts to improve activity, selectivity and stability in a modeln-decane dehydrogenation reaction. Acidity, TPR and TPCO measurements have shown that the precursors affect the acid site distribution in the support, modify the reducibility and dispersity of Pt–Sn active species, coke lay-over patterns, stability and also selectivity for formation of monoolefins in the dehydrogenation ofn-decane.     

PRODUCTION AND CYTOGENETIC STUDY OF INTERGENERIC HYBRIDS BETWEEN Triticum aestivum AND Agropyron desertorum

Through embryo culture, intergeneric hybrids were produced between common wheat,Triticum aestivum cv. Chinese Spring (CS) (2n= 6x = 42, AABBDD) and crested wheatgrass,Agropyron desertorum (2n =4x =28, PPPP) for the first time. Their F_2 and BC_1 seeds havealso been successfully obtained by selfing and backcrossing with wheat in F_1 hybrids. Theseedlings of all F_1 hybrids tended to resemble their female parent, but they had more tillers,and their spike characteristics were between their parents. Average meiotic chromosomepairing at MI of F_1 hybrids was: 6.62Ⅰ+ 8.20RingⅡ+ 4.16RodⅡ+0.57Ⅲ+ 0.35Ⅳ+0.06Ⅴ+0.03Ⅵ. The successful experience of hybridization of common wheat with A. desertorum,the reason for the high level of chromosome pairing and self-fertility in the F_1 hybrids werediscussed. The F_2 and BC_1 seeds obtained in F_1 hybrids are of great importance to theory andpractice.     

Ni/Al2O3 catalysts for syngas methanation: Effect of Mn promoter

Ni/Al2O3 catalysts with different amounts of manganese ranging from 1 to 3 wt% as promoter were prepared by co-impregnation method. The catalysts were characterized by N2 physisorption, XRD, TPR, SEM and TEM. Their catalytic activity towards syngas methanation reaction was also investigated using a fixed-bed integral reactor. It was demonstrated that the addition of manganese to Ni/Al2O3 catalysts can increase the catalyst surface area and average pore volume, but decrease NiO crystallite size, leading to higher activity and stability. The effects of reaction temperature, pressure and weight hourly space velocity (WHSV) on carbon oxides conversion and CH4 formation rate were also studied. High carbon oxides conversion, CH4 selectivity and formation rate were achieved at the reaction temperature range of 280 300℃.     

The use of coenzyme Q0 as a template in the development of a molecularly imprinted polymer for the selective recognition of coenzyme Q10

In this work, a novel molecularly imprinted polymer (MIP) for use as a solid phase extraction sorbent was developed for the determination of coenzyme Q10 (CoQ10) in liver extract. CoQ10 is an essential cofactor in mitochondrial oxidative phosphorylation and a powerful antioxidant agent found in low concentrations in biological samples. This fact and its high hydrophobicity make the analysis of CoQ10 technically challenging. Accordingly, a MIP was synthesised using coenzyme Q0 as the template, methacrylic acid as the functional monomer, acetonitrile as the porogen, ethylene glycol dimethacrylate as the crosslinker and benzoyl peroxide as the initiator. Various parameters affecting the polymer preparation and extraction efficiency were evaluated. Morphological characterisation of the MIP and its proper comparison with C18 as a sorbent in solid phase extraction were performed. The optimal conditions for the molecularly imprinted solid phase extraction (MISPE) consisted of 400 μL of sample mixed with 30 mg of MIP and 600 μL of water to reach the optimum solution loading. The loading was followed by a washing step consisting of 1 mL of a 1-propanol solution (1-propanol:water, 30:70,v/v) and elution with 1 mL of 1-propanol. After clean-up, the CoQ10 in the samples was analysed by high performance liquid chromatography. The extraction recoveries were higher than 73.7% with good precision (3.6–8.3%). The limits of detection and quantification were 2.4 and 7.5 μg g⁻¹, respectively, and a linear range between 7.5 and 150 μg g⁻¹ of tissue was achieved. The new MISPE procedure provided a successful clean-up for the determination of CoQ10 in a complex matrix.     

Siderophoregenic Bradyrhizobia boost yield of soybean

After screening for siderophore (microbial iron chelator) production, of seven available cultures of soybean (Glycine max L.) root nodule bradyrhizobia, one strain, Bradyrhizobium japonicum NCIM 2746, was selected to confirm its phytopathogenic suppression and soybean growth promotion. Based on chromatographic and spectrophotometric studies, two different siderophores, a hydroxamate type (MW 734) and another catecholate type (MW 1000), were observed. Randomized block design (RBD) analysis of sickpot studies (soil inoculated with phytopathogens) with an MACS 124 variety of soybean, bacterized with siderophoregenic B. japonicum, showed a marked increase in the percentage of germination, nodulation, chlorophyll, oil, protein content, and number of pods. Field trial study confirmed these pot results, which were evident from enhancement in shoot length, number of branches, chlorophyll content, number of nodules, root length, and number of pods. These results suggest the possibility of exploiting B. japonicum NCIM 2746 as a potential bioinoculant.