Tourist route design is essential to the scenic spot planning and tour route design. In this paper, four elements of tourist route design were identified to form the list of tourist route design principle. Based on th...Tourist route design is essential to the scenic spot planning and tour route design. In this paper, four elements of tourist route design were identified to form the list of tourist route design principle. Based on the analysis of Campbell model, four-point inspiration for tourist route design was summarized, a Campbell model-based schematic of the tourist route design of Rizhao was formed grounded on the analysis of tourism resources and service facilities in Rizhao, so as to explore the optimal way of the tourist route design.展开更多
目的阐述含水率对非饱和砂土热传导系数的影响,为模型的参数选择提供科学依据.方法选用分选良好的粗砂、中砂和细砂以及毛乌素沙地的风积沙作为实验介质,利用JW-Ⅲ型热流计测定不同含水率条件下砂土的热传导系数,绘制热传导系数和含水...目的阐述含水率对非饱和砂土热传导系数的影响,为模型的参数选择提供科学依据.方法选用分选良好的粗砂、中砂和细砂以及毛乌素沙地的风积沙作为实验介质,利用JW-Ⅲ型热流计测定不同含水率条件下砂土的热传导系数,绘制热传导系数和含水率的关系曲线,运用非线性最小二乘法对实测数据与常用的热传导系数模型Campbell及Chung and Horton模型进行拟合.结果含水率在0~5%内热导率急剧增长,当含水率>10%时热导率的增长缓慢并趋于稳定.两模型基本能反映各试验介质的热传导系数和含水率的变化规律,对于扰动样该模型在含水率较小时不能很好地表征其变化规律.结论随着含水率的增加热导率值增加速率不同.在利用预测模型和经验公式时,应利用实测数据对其进行校正,减小误差.展开更多
文摘Tourist route design is essential to the scenic spot planning and tour route design. In this paper, four elements of tourist route design were identified to form the list of tourist route design principle. Based on the analysis of Campbell model, four-point inspiration for tourist route design was summarized, a Campbell model-based schematic of the tourist route design of Rizhao was formed grounded on the analysis of tourism resources and service facilities in Rizhao, so as to explore the optimal way of the tourist route design.
文摘目的阐述含水率对非饱和砂土热传导系数的影响,为模型的参数选择提供科学依据.方法选用分选良好的粗砂、中砂和细砂以及毛乌素沙地的风积沙作为实验介质,利用JW-Ⅲ型热流计测定不同含水率条件下砂土的热传导系数,绘制热传导系数和含水率的关系曲线,运用非线性最小二乘法对实测数据与常用的热传导系数模型Campbell及Chung and Horton模型进行拟合.结果含水率在0~5%内热导率急剧增长,当含水率>10%时热导率的增长缓慢并趋于稳定.两模型基本能反映各试验介质的热传导系数和含水率的变化规律,对于扰动样该模型在含水率较小时不能很好地表征其变化规律.结论随着含水率的增加热导率值增加速率不同.在利用预测模型和经验公式时,应利用实测数据对其进行校正,减小误差.