论董仲舒与王充人性论思想的内在趋同     

王先亮 《衡水学院学报》2011,13(6):5-8

人性问题是董仲舒与王充哲学思想的重要命题之一。二者从最原初的生存状态着眼对性做出概念阐释。在善恶来源方面,董仲舒以阴阳定善恶,提出性生于阳为善,情生于阴为恶;而王充以渥泊(厚薄)作区分,情性同生于阴阳之气,禀得渥者为善,禀得泊者为恶。董仲舒将人性分为圣人之性、斗筲之性和中民之性。王充同样明确将人性划分为上中下三等。他们认为,中人以上、以下之性不可改变,可以改变的只是中人之性。基于这一理论,二者主张通过教化(具体表现为学校教育)来改善人性,以期实现风尚淳朴、社会安宁的大治局面。  相似文献   

成形磨齿表面粗糙度分析及实验研究     

王凤娟 《安阳工学院学报》2011,10(2):1-3

表面粗糙度是用来评价一个加工后的零件的几何精度的标准,影响表面粗糙度的因素很多,其中包括砂轮的表面特性、形貌、磨削工艺参数等。通过磨削工艺实验并对数据分析找出表面粗糙度的影响因素及其变化规律,这样能够更好地找出使粗糙度变低的磨削参数以及砂轮的修整参数,所得出的参数能够为降低粗糙度提供更为充足的数学依据。  相似文献   

TIN地形曲面任意点法向量的高精度解算模型     

赵静  王栋  王春  李鹏 《滁州学院学报》2011,13(2):15-17

曲面法向量是基于TIN完成数字地形解析分析的重要参考基础。本文首先分析了TIN中的三角形形状与地形曲面姿态的关系问题,然后构建了以地形曲面形态的"相近相似"特征为基点的V-Rub法向量解算模型。实验结果显示,V-Rub模型解算法向量的精度高,速度快,具有很好的实用价值。  相似文献   

动词带宾语"被"字句成因浅析     

王红梅 《太原大学教育学院学报》2011,29(4):64-67

现代汉语动词带宾语"被"字句可分为两类.文章从动词带保留宾语"被"字句和动词带非保留宾语"被"字句两类不同句式分别探讨,认为这两类句式各有其成因.  相似文献   

高速铣削中的几何因素对加工表面粗糙度影响与实验     

高广进 《天津职业院校联合学报》2011,13(2):43-46

在高速铣削中由球头铣刀的几何因素致使加工表面残留高度发生相应改变,而其影响因素是多方面的,通过对铝合金试件的表面粗糙度实验分析出不同几何因素对加工表面质量的影响程度。  相似文献   

五水共治：农民参与动力机制研究--基于浙西南农村的调查     

王烨冰  李国志  黄艳娴 《丽水学院学报》2015,(3):16-20

农村水环境治理是浙江省抓好生态治理,推进“五水共治”的关键工作。以浙西南农村为例,以农民的治水共识、参与行为为视角,通过对调查所得数据进行分析,探讨“五水共治”新形势下农民参与水环境治理的动力机制,提出构建政府、村企、农民“三联参与”新格局,提升农民参与治水的能动性。  相似文献   

R4中二次曲面的不变量     

张海芳 《思茅师范高等专科学校学报》2015,(3):47-49

对于三维欧氏空间中二次曲面的不变量,已经有过大量的详细的研究讨论,但对于高维空间中的二次曲面不变量却很少有人进行探究。为此,就针对四维欧氏空间中二次曲面的不变量进行了简单的研究。  相似文献   

Child maltreatment among boy and girl probationers: Does type of maltreatment make a difference in offending behavior and psychosocial problems?     

《Child abuse & neglect》2015

This study examined differences in offending behavior and psychosocial problems between juvenile offenders who have been sexually abused (n = 231), physically abused (n = 1,568), neglected (n = 1,555), exposed to multiple forms of maltreatment (n = 1,767), and non-victims (n = 8,492). In addition, the moderating effect of gender in the association between type of maltreatment and offending behavior/psychosocial problems was examined. Results showed that violent offenses were more common in victims of physical abuse and victims of multiple forms of abuse than in non-victims, both in boys and girls. In boys, sexual offenses were far more common in victims of sexual abuse than in victims of other or multiple forms of maltreatment or in non-victims. In girls, no group differences were found in sexual offending behavior. For both boys and girls, externalizing problems were relatively common in victims of physical abuse and neglect whereas internalizing problems were relatively common in victims of sexual abuse. In victims of multiple forms of maltreatment, both internalizing and externalizing problems were relatively common. Implications for clinical practice are discussed.  相似文献   

Natural surface design for sliding mode control with multiple discontinuous inputs     

Pedro Acosta 《Journal of The Franklin Institute》2014

It is well known that sliding mode control is based on the definition of an invariant manifold, where the system dynamics are forced to in a finite time. Such a manifold is somewhat arbitrarily defined, as long as the system dynamics are stable on it. Computational and control effort may vary depending on selected manifold. Obviously, if a system has naturally acceptable stable dynamics around a desired equilibrium point, no control is needed unless uncertainties or disturbances are present. It would be desirable that if such a system had uncertainties or disturbances, the control effort be designed only to overcome the effect of such factors. For a system with first order dynamics and affine control input, designing a sliding mode control overcoming only such uncertainties or disturbances is a trivial task. When a higher order dynamics system is involved, unit control may be used, where the input control signals are not discontinuous, but when only discontinuous control inputs are available, a design approach is not readily available. In this paper, taking advantage of the natural stable dynamics of a system, a sliding mode control approach is introduced for designing multiple discontinuous control inputs, where the control effort overcomes only uncertainties, disturbances or unstable dynamics. Two illustrative examples are given in order to show the feasibility of the method.  相似文献   

响应面法优化米曲霉HML366产β-葡萄糖苷酶发酵培养基     

罗奉奉  何海燕 《大众科技》2014,(6):98-100

文章研究旨在优化前期筛选到的米曲霉HML366产β-葡萄糖苷酶的培养基条件。通过单因素实验和响应面设计对米曲霉HML366产β-葡萄糖苷酶的培养基条件进行了优化组合,确定最佳的发酵培养基配方为:甘蔗渣3.49%,豆饼粉0.375%,KH2PO4 0.255%。在此培养条件下得到β-葡萄糖苷酶酶活力达92.64 U/g,是未优化前酶活71.12 U/g的1.30倍。  相似文献