简论李觏的气本原说

李觏认为气是太极，为万物之本原；气具有阴阳之二性，二性的交合、变化、运动产生万物。他的气本原说具有朴素唯物主义的倾向，但是他的唯物主义思想却不彻底。     

Preface

Different from traditional tax audit, supervision with self-audit is a combination of audit by the taxpayer himself and audit by the tax authority. This paper mainly studies a taxpayer’s optimal policy of tax evasion under supervision with self-audit and its related properties, in order to deduce some effective suggestions and theoretical bases to restrain tax evasion. Assuming that only a certain proportion of evaded tax can be discovered when the audit is executed, the authors first formulate a static model with self-audit. This model is divided into two stages. At the first stage, taxpayers declare their taxes, then the tax authority chooses audit objects, based on a known probability, and announces the result; if the taxpayer is chosen, he will enter the second stage, during which he has a chance to pay the evaded tax and the corresponding late fees and then is audited by the tax authority. The authors show the existence and uniqueness of the optimal amount of tax evasion at the first stage and the optimal proportion to self-expose at the second stage. The authors also discuss the related properties of the interior solution, and do elasticity analyses on some parameters. Besides, the authors extend the static model into the corresponding two-period model, and study the existence and uniqueness of the solution of the extended model. Finally, under the assumption that tax evasion can only be discovered with a certain probability when the audit is executed, the authors formulate another static model with self-audit and investigate its properties. This research is partially supported by the National Natural Science Foundation of China under Grant Nos. 60674082, 70221001, and 70731003.     

《红豺》的生态伦理学解读

生态伦理学是在生态文化的学术背景下兴起的一门学科.文章试图从生态伦理学的学科角度来解读土家族作家李传锋的动物小说力作<红豺>,探讨和挖掘<红豺>中"尊重物种的生命,呼唤人与自然和谐相处"的生态伦理追求.     

《雷雨》与祈雨仪式--曹禺剧作《雷雨》的文化学阐释

曹禺的《雷雨》之所以具有经久不衰的文化魅力并深受作者自己的喜爱,一个未被人们发掘出来的原因是它再现了一个古老的原型——祈雨仪式。在无意识的驱使下,曹禺以现代话剧的形式把古老的祈雨仪式再现在人们面前,不仅让人们重温了祈雨仪式中蕴涵的人类文化精神,也为人们树立了一个在人生旅途中必须不断审视自我、拯救自我、完善自我的范例。     

防火卷帘闭式自动喷水灭火系统的设计

防火卷帘取代防火墙后，应对防火卷帘实施闭式自动喷水保护，从自喷的水量、火灾延续时间喷头的布置等几方面进行了探讨。     

水轮机转轮叶片系统动力分析(Ⅱ)——实例分析

考虑到１６结点相对自由度壳元能很好地描述薄壳和厚壳的性质,而且和三维实体单元的联接也相当方便,本文采用该种单元对水轮机叶片进行离散,并通过样条插值获得叶片有限元网格结点的三维坐标。对水轮机转轮叶片系统的动力特性进行了具体的分析计算,得到了各阶固有频率及相应模态。结果表明,水轮机转轮最低若干阶频率的振动是以下环为主的振动,同时指出,对不同阶次的频率,附加质量的影响是不同的。     

无土培育罗汉果种薯初探

以罗汉果无病毒苗为试材,利用不同容器进行无土培育罗汉果种薯。结果表明,在富含有机基质的容器内培育罗汉果块茎,能得到良好的生长,其根系旺盛发达,种薯直径5 cm以上达94.3%。     

山苍子油微胶囊化及其抗氧化作用

以新鲜的山苍子为原料，采用超声波辅助水蒸汽蒸馏法提取山苍子粗油，应用正交设计以β-环糊精为壁材对山苍子油微胶囊化，并且对山苍子油的抗氧化作用进行了研究．实验结果表明，β-环糊精可以很好的包埋山苍子油，其最佳包埋工艺为：山苍子油与β-环糊精用量比为1mL：4g；β-环糊精与水用量比为1g：25mL；搅拌温度为65℃；乳化剂用量为0．3％，此外山苍子粗油具有较好的抗氧化效果，可以有效的清除羟自由基、超氧自由基。     

非处方药模糊综合评判模型的研究与设计

首先介绍了建立网上非处方药的评判系统是现代医疗手段发展的必然趋势,然后分别介绍了单级和多级Fuzzy综合评判的数学模型,最后提出了非处方药的评判体系及评判模型     

厚荚相思组织培养与快速繁殖

以5年生厚荚相思(Acacia crassicarpa)的萌芽茎段为外植体进行了组织培养的初步研究，结果表明：改良的MS 6-BA2．0mg／L NAA0．2mg／L培养基能够较好地诱导芽的分化和增殖；适宜的继代增殖培养基为改良MS 6-BA1．5mg／L NAA0．2mg／L；较为想的生根培养基为1／2MS IBA0．5mg／L，生根率达95．0％；生根苗的移栽基质以黄心土的移栽效果最好，移栽成活率达90．0％。