加快地勘单位企业化经营的基本思路

本文对地勘队伍属地化后,如何加快企业化经营进程,结合山东省地勘局的实际做法提出了基本思路.     

天保工程区域可持续发展评价研究——以双丰林业局为例

根据区域可持续发展和工程评价理论,采用层次分析和综合评价相结合的评价方法,通过对天保工程要素维、空间维和时间维等三个维度的分析,从目标层、状态层、能力层、指标层构建其评价指标体系。计算双丰林业局天保工程可持续发展能力的综合指数,进而对逐年的可持续发展能力展开评价。     

张掖市城乡建设用地布局优化研究

随着社会生产力的发展,土地利用类型结构和布局趋向复杂化;以张掖市为研究对象,在充分调查张掖市城乡建设用地现状的基础上,从数量、布局等方面分析了城乡建设用地存在的问题,通过对用地规模的预测,提出相应的优化城乡建设用地结构和布局的措施与建议。     

努力实现“四个”转变推动地勘经济科学发展

从当前产业发展情况和今后改革要求来看,宁夏地矿局依然存在着主业不强、结构不优、质量不高、层次较低、后劲不足、积累很少、可持续发展能力不强的状况。因此,必须下决心转变地勘经济发展方式,增强可持续发展的能力,在地勘经济发展的结构上,由单纯追求数量的经济发展模式向追求数量、结构、质量、效益四位一体的发展模式转变;在地勘经济发展方式上,由只从事勘查的“打工”经济模式向探采一体化可持续发展模式转变;在地勘经济管理上,由粗放式、以包代管式管理模式向精细化、科学化管理模式转变;在推动地勘经济发展的思维方式上,由按部就班、自我封闭的传统思维定势向与时俱进、善于变革、勇于开拓创新的模式转变。     

如何用遗传算法解决公路客运枢纽选址问题

文中首先分析了公路客运交通枢纽选址问题的研究思路.然后从客运枢纽为了达到方便客户、优化路网、减少投资等综合交通最优化的角度建立了教学模型,并给出了用遗传算法求解的程序流程图.最后通过某城市的客运枢纽规划实例,表明此理论型布局能够满足人们的出行需求,显示了该方法的科学性和可行性.     

基于KPCA-SVM的公路客运量预测研究

支持向量机(Support Vector Machine,SVM)是建立在统计学习理论和结构风险最小化准则基础上的机器学习方法,该方法可以较好的解决以往很多学习方法的小样本、高维数、非线性和局部最小点等实际问题.本文利用支持向量机(SVM)回归理论和方法,建立基于核函数主成分支持向量机(Kernel Principal Component Analysis-Support Vector Machine,KPCA-SVM)回归模型,并用2000-2008年杭州市公路客运量为样本进行了预测,结果表明,KPCA-SVM模型具有较高的预测精度和可靠性,是一种有效的公路客运量预测方法.     

Assessing the growth-inducing impact of the Appalachian Development Highway System in southern Ohio: Did policy promote change?

The concept of “inducing growth” is typically considered an adverse consequence of a project on the land use system. In certain instances, however, the desire to induce growth and foster land use change is a focus of land use policy. Such is the example of the Appalachian Highway Development System (AHDS) program initiated by the Appalachian Regional Commission (ARC) during the late 1960s. With the goal of providing highway infrastructure to improve assess to a geographically isolated and historically impoverished region, the ADHS has added nearly 3000 miles of highway to the Appalachian landscape. The degree to which highway investment has contributed to regional growth remains a controversial point and tractable methods to quickly assess landscape change given a project of this magnitude are elusive. In this paper a portion of the AHDS trending through southern Ohio is examined using data acquired from the Landsat series of satellites. Beginning with a pre-highway condition in 1976, a 26 year time horizon, concluding in 2002, was analyzed based on a post-classification change detection methodology. Results of this investigation revealed slight, yet significant, levels of urban expansion within a 10 km corridor along the path of AHDS Corridor D/State Route 32. Beyond this buffer zone the land use system evidenced more stability, suggesting that as distance increased from Corridor D/State Route 32, reduced accessibility also reduced the attractiveness of land for urban uses. Relating these results back to the infrastructure investment policies of the ARC demonstrates that growth did result from the construction of Corridor D and supports previous findings that land development based on highway construction is extremely time-sensitive.     

我国公路工程施工质量管理浅析

我国每年的公路工程投资巨大,公路工程投资的质量管理是一个非常棘手的问题.文章根据公路工程建设的特点,分析了当前我国公路工程建设质量管理的问题,提出了解决的思路.     

Adding a freight network to a national interstate input–output model: a TransNIEMO application for California

The state of the nation’s infrastructure is the subject of widespread discussion and comment because it is thought to include many deteriorating and unsafe bridges. Ever since the terrorist attacks of 9/11, there has been increasing concern over the extent to which an attack on infrastructure could result in serious economic disruption. This research develops a model to analyze the economic consequences of an attack on a major element of the highway network. We add a freight network to a national multiregional economic impact model and make freight traffic flows endogenous. The use of a sub-national interstate model recognizes that most infrastructure planning is at the state level and most political leaders’ interest is local. We base our approach on the National Interstate Economic Model (NIEMO) and refer to an elaboration that we name Transportation network and the National Interstate Economic Model (TransNIEMO). The new model enables us to study the state-specific and industry-specific economic impacts of some significant changes in the nature of highway freight movements. We tested the model for selected freight movements in and out of California. The results are entirely plausible and encourage us to elaborate and test the model for hypothetical disruptions of freight traffic throughout the US.     

Typologies of Banner Advertisements’ Attributes: A Content Analysis

The web has received significant amount of attention from advertising and consumer researchers investigating the impact of banner advertisement on consumers’ psychological and behavioral responses. However, no typology of banner advertisement has been identified yet, and the selection of banner advertisements as advertising stimuli has been carried out on the premise of personal judgment rather than scientific methodology. The identification of typology is important because different banner advertisement, such as static and pop-up, elicit different consumers’ responses. In addition the identification of a typology constitutes an advance to mid-range theory in a research domain. Hence, the purpose of this research is to identify the typologies of banner advertisements’ attributes such as type, number, shape, location, and size using content analysis. Specifically, nine banner advertisement types are identified as well as the typology of number, shape, location, and size of banner advertisements. Contributions of the research are discussed.