Target setting and allocation of carbon emissions abatement based on DEA and closest target: an application to 20 APEC economies

Regarded as an effective method for treating the global warming problem, carbon emissions abatement (CEA) allocation has become a hot research topic and has drawn great attention recently. However, the traditional CEA allocation methods generally set efficient targets for the decision-making units (DMUs) using the farthest targets, which neglects the DMUs’ unwillingness to maximize (minimize) some of their inputs (outputs). In addition, the total CEA level is usually subjectively determined without any consideration of the current carbon emission situations of the DMUs. To surmount these deficiencies, we incorporate data envelopment analysis and its closest target technique into the CEA allocation problem. Firstly, a two-stage approach is proposed for setting the optimal total CEA level for the DMUs. Then, another two-stage approach is given for allocating the identified optimal total CEA among the DMUs. Our approach provides more flexibility when setting new input and output targets for the DMUs in CEA allocation. Finally, the proposed approaches are applied for CEA target setting and allocation for 20 Asia-Pacific Economic Cooperation economies.

     

Target setting and allocation of carbon emissions abatement based on DEA and closest target: an application to 20 APEC economies

Regarded as an effective method for treating the global warming problem, carbon emissions abatement (CEA) allocation has become a hot research topic and has drawn great attention recently. However, the traditional CEA allocation methods generally set efficient targets for the decision-making units (DMUs) using the farthest targets, which neglects the DMUs’ unwillingness to maximize (minimize) some of their inputs (outputs). In addition, the total CEA level is usually subjectively determined without any consideration of the current carbon emission situations of the DMUs. To surmount these deficiencies, we incorporate data envelopment analysis and its closest target technique into the CEA allocation problem. Firstly, a two-stage approach is proposed for setting the optimal total CEA level for the DMUs. Then, another two-stage approach is given for allocating the identified optimal total CEA among the DMUs. Our approach provides more flexibility when setting new input and output targets for the DMUs in CEA allocation. Finally, the proposed approaches are applied for CEA target setting and allocation for 20 Asia-Pacific Economic Cooperation economies.     

GIS空间数据与DXF格式相互转换时颜色匹配研究

分析了AutoCAD中DXF格式颜色系统特征,ArcGIS颜色系统特征及ACI颜色与RGB颜色的对应关系。在此基础上提出了ACI颜色与RGB颜色相互转换的思路,并就转换过程中的关键技术进行了论述。实现了瓦斯预警系统中的导入、导出DXF格式颜色相互转换功能。     

郯庐断裂带中南段地壳介质散射强度

本研究运用远震扰动场方法,利用134个数字地震观测台记录的10次远震记录对郯庐断裂带中南段地壳介质散射强度进行研究.结果表明,研究区上、下地壳介质散射强度呈现强烈的横向非均匀性特征,上、下地壳介质散射强度空间分布特征基本一致,散射强度高值区主要分布在华北断块区及秦岭—大别褶皱系的东部地区,散射强度低值区主要分布在下扬子断块区,散射强度峰值区主要分布在六安、莒南、嘉山、烟台等地.地壳介质散射强度与构造块体具有较强的相关性,构造块体不同,地壳介质散射强度则存在一定的差异;沿郯庐断裂带地壳介质散射强度呈现分段性特征,可分为潍坊至临沂段、临沂至嘉山段以及嘉山至九江段三段;地震活动与地壳介质散射强度有较强的相关性,地震多发生在地壳介质散射强度梯度带上,郯庐断裂带的潍坊至临沂段、嘉山至九江段地壳介质散射强度梯度较大,此段中小地震活动较强,而临沂至嘉山段地壳介质散射强度梯度小,中小地震活动相对较弱.地壳介质散射强度与构造块体、断裂构造及地震活动之间的相关性,除反映了深部介质物性可能存在差异外,也可能与深部介质物理形态、物质运移以及深部应力应变环境的变化有关.     

青藏高原东南缘及邻区地壳介质散射强度变化特征

基于远震扰动场方法,利用47个数字地震观测台记录的10次远震记录对青藏高原东南缘及邻区地壳介质散射强度进行了研究.结果表明研究区内地壳介质横向非均匀性强烈,扬子块体地壳介质散射强度与青藏块体存在较为明显的差异;地壳介质散射强度梯度带与主要断裂带分布趋势一致,龙门山断裂带、安宁河断裂带与地壳介质散射强度梯度带具有较强的相关性,散射强度高值区偏向青藏块体一侧;强震震中沿散射强度梯度带分布,其震中偏向散射强度高值区一侧;散射强度呈现纵向非均匀性特征,下地壳介质散射强度高于上地壳.研究区强、弱散射强度的空间分布可能与区内强烈的地质构造运动、频繁的地震及火山活动所引起深部物质破碎、熔融及其沿断裂带的上涌与运移有关.