乡村旅游发展对传统文化保护的关系探析

传统文化是乡村旅游存在和发展的基础,如何维系乡村传统文化可持续性,是当前乡村旅游可持续发展面临的严峻挑战之一。传统文化是乡村旅游核心资源,而乡村旅游又是传统文化传播的最好载体,两者之间有着密切的关联。现代乡村旅游的发展对传统文化既有积极影响,同时也带来负面作用,应建立"政府主导"的保护机制,保护原生态乡村环境,保护乡村人文生态资源,整体保护乡村传统文化资源。     

水稻胚乳细胞发育与结实特性

文章对水稻胚乳细胞发育过程、淀粉体和蛋白体结构特征与结实特性、养分输入胚乳细胞的途径、ATPase活性分布与水稻充实的关系、水稻强弱势粒胚乳细胞发育与其结实特性进行分析.提出进一步研究胚乳细胞发育及其超微结构与籽粒生理活性的关系,可从深入开展亚显微水平下强弱势粒背部维管束结构、ATPase的活性分布、差异表达基因对结实特性的影响等方面展开研究.     

“兼语句”的来源及特征

"兼语句"是现代汉语中一个重要的句式,早在先秦时期便已存在。然而,由于对其系统的语法研究开始较晚,此句式直到本世纪三、四十年代才引起人们的关注,学者们的关注,学者们对其解释亦不尽相同。文章在前人研究的基础上,从认知学角度对"兼语句"的来源及特征进行了分析,揭示了它与连动结构的渊源关系,并指出了它的内涵及特征。     

现代汉语事务语体虚词分布研究

文章对现代汉语事务语体中虚词的分布、规律及原因作了研究。通过统计分析发现虚词中助词使用最多,其次是介词、连词,很少使用语气词。各虚词小类在使用中存在一定的差异性,这种差异性主要取决于事务语体的基本性质、基本特征。     

关于正态总体抽样分布定理的证明和思考

用数学归纳法,对正态总体抽样分布中的两个定理给出了一种简单的证明,以期为概率论与数理统计的有效教学提供借鉴.     

严万里《商君书校》校勘特色平议

<商君书校>一书,以其校勘的精审、方法的缜密见长.著者淹博通贯,小学根底扎实,且熟谙于朴学家校治古书之法,因而在校勘的实践中应付裕如,左右逢源.在校勘上搜罗宏富,征引广博,在指出诸本文字差异的同时,抉择按断,兼下己意.不盲从古本或善本,敢于大胆发疑,刊改漏失,补苴未备,提出了若干具有创造性的新见解.校勘文字,大胆审慎,...     

Subdivision surface modeling system based on arbitrary topological curves network and combined subdivision

Arbitrary topological curve network has no restriction in topology structure,so it has more powerful representing ability in defining complex surfaces.A complex surface modeling system is presented based on arbitrary topological curve network and the improved combined subdivision method,its functions including creating and editing curve network,and generating and modifying curve network's interpolated surface.This modeling system can be used to the process of products'concept design,and its applications is ...     

Extraction of novel features for emotion recognition

Hilbert-Huang transform method has been widely utilized from its inception because of the superiority in varieties of areas. The Hilbert spectrum thus obtained is able to reflect the distribution of the signal energy in a number of scales accurately. In this paper, a novel feature called ECC is proposed via feature extraction of the Hilbert energy spectrum which describes the distribution of the instantaneous energy. The experimental results conspicuously demonstrate that ECC outperforms the traditional short-term average energy. Combination of the ECC with mel frequency cepstral coefficients (MFCC) delineates the distribution of energy in the time domain and frequency domain, and the features of this group achieve a better recognition effect compared with the feature combination of the short-term average energy, pitch and MFCC. Afterwards, further improvements of ECC are developed. TECC is gained by combining ECC with the teager energy operator, and EFCC is obtained by introducing the instantaneous frequency to the energy. In the experiments, seven status of emotion are selected to be recognized and the highest recognition rate 83.57% is achieved within the classification accuracy of boredom reaching 100%. The numerical results indicate that the proposed features ECC, TECC and EFCC can improve the performance of speech emotion recognition substantially.     

鲁东南地区新石器遗址的时空分布特征

文化遗址是文化遗产的有机组成部分,文化的发生、演进、发展、传承甚至毁灭都是在古遗址上发生的。文化遗址的研究涉及多个方面,其中遗址空间分布研究是一个重要方面。本文采用GIS空间分析方法．对鲁东南地区新石器文化遗址的空间分布特征进行了分析研究。从遗址分布的自然地形方面进行分析．发现在不同时期内遗址的高程、坡向有一定的分布特征,古遗址在某些地区分布具有一定的聚集性。     

虚拟学习社区的自组织性及形成条件

虚拟学习社区具有自发、自管、自调的特点,与自组织理论的基本内涵呈现极强的内在耦合性,如果社区中的学习者建构合理的身份认同与自我效能感、又具有一定规模的参与人数、发表的作品及跟贴达到一定数量、社区中教师具备沟通智慧与反思习惯、社区中的知识权威和意见领袖发挥影响、教育主体之间建立有效的心理契约这几方面满足了耗散结构的产生条件,虚拟学习社区就会出现自组织的特征,由无序走向有序,形成非线性复杂系统。