“玉匣”与“玉衣”义项再考——兼与王仙波先生商榷

关于＂玉匣＂与＂玉衣＂的义项,学界在认识上存在一些误区。文章在前人研究的基础上,结合出土文物,纠正＂玉匣＂仅为＂盛玉之匣＂的观点,补充梳理＂玉匣＂义项为：1.汉代皇帝、王侯所用的玉制葬服;2.玉制之匣,用以贮藏珍物;3.盛玉之匣。     

从历代典籍与“咏黄”诗歌看黄河渊源

在历史上,对黄河渊源的探求不仅大量地表现在历代典籍中,而且也散见于历代文人雅士的“咏黄”诗歌中。通过以诗吏互证的方法,可以勾勒出历代探求黄河渊源的大致情况。     

拨不开的迷雾——炎帝黄帝与炎黄文化的南迁

在计划经济向市场经济的转型期,追逐物质享受和经济目标成了多数人的唯一志趣和社会时尚,此风也影响了学术界及部分学者.文章以学术界存在的"黄帝与黄帝文化的南迁"、"炎帝和炙帝文化的南迁"等现象为例,说明当前一些地方和一些学者借历史考据方法为各地争名人.已经达到置基本事实于不顾、利用晚出典籍煞费苦心任意曲解的地步,期盼学者中缺乏责任心的阿世、媚俗、唯上之风得到扭转.同时也认为黄帝或黄帝后代的封地都不在浙江,黄帝族的活动区域不可能远达东南,炎帝及其子孙也没有真的迁到南方,原本活动于黄河流域的炎帝族是因为阴阳五行观念的影响才被人为分配到了南方,湖南炎陵县的交帝陵建于宋代,也可能始建于汉代,但都是阴阳五行现念影响下的产物.     

等价类划分测试用例设计

等价类划分是黑盒测试的典型方法之一,通过把被测试程序所有可能的输入数据域划分成若干部分,从每一部分中选取少数有代表性的数据作为测试用例,可有效减少测试次数,极大提高软件测试效率,缩短软件开发周期.     

推进黄河三角洲高效生态农业建设的思考

高效生态农业建设是推进黄河三角洲高效生态经济区建设的战略重点,也是"十二五"时期的一项重大任务。黄河三角洲地区发展高效生态农业具备一些有利条件,但也面临许多问题,如农民生态农业观念淡薄、农业生态环境恶化、生态农业缺乏技术支撑和社会支持等。为此,应发挥农民在高效生态农业建设中的主体作用,选择适合黄河三角洲地区高效生态农业的发展思路,把农业结构调整、改善生产条件、发展无公害农业与生态环境结合起来,大力推进黄河三角洲高效生态农业建设。     

预应力混凝土箱梁桥顶板上的开裂问题

介绍了我国几座预应力混凝土箱梁桥顶板开裂的情况,结合沙洋汉江公路大桥的加固工程,分析了箱梁顶板的横向内力。通过实桥计算,发现日照温差在箱梁顶板上产生较大的横向温度应力,在工程设计中忽略该项应力的计算是不合理的。对在车轮荷载作用下的箱粱顶板横向弯曲问题,应用高阶有限条法进行数值分析,并与平面框架法的计算值作了比较,其结果有出入。本文就上述问题对预应力混凝土箱梁顶板开裂的原因进行探讨,对今后设计,提出了几点建议。     

Correcting double outward box distributed residuals by WCEV

Double outward box distributed residuals are another type of non monotonic heteroscedasticity that severely violates homoscedasticity assumption. In this study Çelik's (2015 Çelik, R. (2015). Stabilizing heteroscedasticity for butterfly-distributed residuals by the weighting absolute centered external variable. J. Appl. Stat. 42(4):705–721.[Taylor &; Francis Online], [Web of Science ®] , [Google Scholar]) WCEV is applied to double outward box distributed residuals to provide homoscedasticity for simple and multiple regression models.     

Gender wage differences and human capital in the early twentieth century: the case of the paper box industry in New York

Women employed in the New York paper box industry in 1913–1914 earned about 60% of what men did. This paper employs the human capital framework to analyze the wage differential due to productivity related factors versus discriminatory nepotism towards men. Years of schooling, years of experience in the paper box trade, and legislative restrictions on working hours of women account for virtually all of the observed wage differential, both for all men and women in the paper box industry, and between the skilled occupations of cutters and strippers.

黄山风景区导游服务质量提升路径研究

黄山是我国最著名的风景区之一,随着黄山旅游的发展,对景区导游的服务要求越来越高。在对黄山风景区导游服务现状调查的基础上,分别从导游自身角度、旅游社角度、行业管理的角度以及游客的角度,提出了黄山风景区导游服务质量提升的途径。     

Modelling the spread in space and time of an airborne plant disease

Summary.  A spatiotemporal model is developed to analyse epidemics of airborne plant diseases which are spread by spores. The observations consist of measurements of the severity of disease at different times, different locations in the horizontal plane and different heights in the vegetal cover. The model describes the joint distribution of the occurrence and the severity of the disease. The three-dimensional dispersal of spores is modelled by combining a horizontal and a vertical dispersal function. Maximum likelihood combined with a parametric bootstrap is suggested to estimate the model parameters and the uncertainty that is attached to them. The spatiotemporal model is used to analyse a yellow rust epidemic in a wheatfield. In the analysis we pay particular attention to the selection and the estimation of the dispersal functions.