基于双层诊断优化的流域初始排污权交互式分配

在剖析初始排污权交互式分配机制基础上,基于流域内不同行政区域之间(即第一层次)、以及区域内不同行业之间(即第二层次)的交互协商原则,构建双层诊断优化模型,在严格控制流域允许最大排污权总量的基础上,建立流域经济社会综合效益优化函数与诊断准则,将流域初始排污权在第一层次、第二层次之间进行交互式分配,对流域内不同区域不同行业的排污量进行削减,兼顾不同区域不同行业之间排污权分配的公平性与效率性,优化流域内各区域以及流域整体的经济效益。结合案例验证了方法的可行性与可操作性。     

运动训练对大鼠心肌细胞一氧化氮合酶表达的影响

为了研究不同强度训练对大鼠心肌细胞一氧化氮合酶表达的影响,采用跑台训练方式,建立大鼠有氧运动和疲劳运动模型,运用免疫组织化学技术研究心肌细胞nNOS、eNOS和iNOS表达的变化.结果发现:有氧训练和大强度训练组大鼠心肌细胞 nNOS阳性表达显著高于安静对照组;有氧训练和大强度训练组大鼠心肌细胞iNOS 阳性表达也显著高于安静对照组,并且有氧训练组大鼠心肌细胞的iNOS阳性表达显著高于大强度训练组;有氧训练大鼠心肌细胞eNOS的阳性表达极显著高于安静对照组和大强度训练组,而对照组则高于大强度训练组.提示心肌细胞一氧化氮合酶表达的变化与运动强度有显著关系.     

锅炉设计中的强度设计研究

论述了强度设计在锅炉设计中的地位和在锅炉设计人员与锅炉检验人员中需要提高认识的几个问题。     

Phase Transformations of Graphite and Carbon Black by Laser with Low Power Density

The structure phase transformations of graphite and carbon black induced by pulsed laser were studied in this paper.Under irradiation with laser beam of 1.06 μm wavelength and power density of 106 W·cm-2,both graphite structure and carbon black structure were changed obviously.The results of Raman analyses and Transmission Electron Microscopy(TEM)observations show that graphite transforms into nanodiamond about 5 nm and carbon black is graphitized.It is demonstrated that graphite is the intermediate phase in the transformation from carbon black to diamond,and graphite is easier to transform into diamond by laser irradiation than carbon black.     

江西省经济增长与能源碳排放脱钩关系的实证分析

运用1995—2012年的统计数据,采用IPCC(2006)测算方法估计江西省能源碳排放总量,通过构建能源碳排放与经济增长的脱钩指数模型实证分析江西省能源碳排放与经济增长之间的脱钩关系。研究结果表明,江西省能源碳排放与经济增长存在不稳定的脱钩状态,强脱钩、弱脱钩、扩张负脱钩等状态交替出现,在此基础上,进一步分析江西能源碳排放与经济增长脱钩状态变化的原因并对江西发展低碳经济提出相应的建议。     

大强度运动对机体免疫功能的影响

大强度运动可降低机体的免疫功能,可能与运动时的应激反应、运动时红细胞免疫力降低、运动性贫血、自由基生成增多、线粒体变性以及运动时的营养消耗有关。     

Evaluating effects of atmospheric CO2 on stability of global climate: a cell-to-cell mapping approach

Atmospheric carbon dioxide concentration [CO2], incoming solar radiation and sea ice coverage are among the most important factors that control the global climate. By applying the simple cell-to-cell mapping technique to a simplified atmosphere-ocean-sea ice feedback climate model, effects of these factors on the stability of the climatic system are studied. The current climatic system is found to be stable but highly nonlinear. The resiliency of stability increases with [CO2] to a summit when [CO2] reaches 290 μL/L which is comparable to the pre-industrial level, suggesting carbon dioxide is essential to the stability of the global climate. With [CO2] rising further, the global climate stability decreases, the mean ocean temperature goes up and the sea ice coverage shrinks in the polar region. When the incoming solar radiation is intensified, the ice coverage gradually diminishes, but the mean ocean temperature remains relatively constant. Overall, our analysis suggests that at the current levels of three external factors the stability of global climate is highly resilient. However, there exists a possibility of extreme states of climate, such as a snow-ball earth and an ice-free earth.     

某低品位磁铁矿钛铁矿选矿试验研究

某低品位磁铁矿钛铁矿矿石含铁13.66%、钛3.01%,磁铁矿、钛铁矿为回收目的矿物。试验进行了＂弱磁选—强磁选＂和＂弱磁选—摇床重选＂两方案的对比,研究结果表明,＂弱磁选—摇床重选＂方案选矿效果较好,最终可获得铁品位60.25%、铁回收率35.57%的铁精矿和钛品位38.57%、钛回收率37.48%的钛铁矿精矿。     

球磨工艺对活性炭孔结构及电化学性能的影响

The effects of particle size of activated carbon （AC） on its wettability, electrode coating technology and electric chemical performance were studied to assemble nonaqueous electric double layer capacitors （EDLCs） for high power requirements. The results show that the specific surface area and total pore volume of AC decrease from 2 137 m^2/g to 1 683 m^2/g, and 0.95 cm^3/g to 0.78 cm^3/g, respectively, if it is ball-milled for 8 h. The pore size distributions are similar in the range of 0.7 nm to 3.5 nm for different ball-milling time. There exists oxidation on the surface of AC during the ball-milling process and the ratios of O-C=O oxygen compositions increase whereas those of C-O, C=O decrease. The peeling strength of AC coated on current collector is almost inverse proportion with the particle size of AC as well as the resistance of EDLCs, and its capacitance decreases about 6%.     

"动+数+动量"组合的认知分析

长期以来学术界对名词和名量词的搭配研究得多,但对动词和动量词的搭配则关注得少。认知上的“有界”与“无界”对立反映在动词与动量词搭配上使得能与动量词搭配的动词总是“有界动词”。本文先从“有界”动词所表示的动作占据的时间段是否重复的角度归纳了“动 数 动量”这一动词和动量词最常见组合形式中的动词与动量词的搭配规律;然后进一步考察了动词和动量词共现时其过程结构三要素(起点、终点、续断)的强度,发现动词过程结构三要素强度差异决定了其后能否带动量词形成“动 数 动量”组合,能带动量词的动词一定是双限动词并且其续段强度必须达到4。