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,...     

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.     

谈谈数学思想在程序设计上的应用

在程序设计中,常常会用到数学上的很多思想。本文以C语言程序设计为例,进一步阐述数学思想在程序设计上的应用。     

非师范专业《现代教育技术》通识选修课教学设计与开发探究

教学设计是开发课程和指导教学活动实施的一种系统方法。运用ADDIE模型,融合多种学习理论,对非师范专业《现代教育技术》通识选修课进行系统的教学设计与开发研究,采用主题式教学内容和团队式教学模式,设计与教学目标和内容相匹配的教学方法和教学手段。经过三年的教学实践与评估优化,课程的教学体系日臻完善,其教学质量和教学效果被广大学生认可。     

民俗旅游中传统文化的“真实性”探讨——以桃坪羌寨“花儿纳吉”赛歌节为例

旅游的“真实性”分为客观性真实、建构性真实和存在性真实．旅游地主流文化与边缘文化、强势文化与弱势文化之间的碰撞,使得文化差异性减少、趋同性增加,从而导致民俗旅游中“真实性”的缺失．以桃坪羌寨“花儿纳吉”赛歌节为例,通过与传统的“花儿纳吉”对比,探讨了民俗旅游对传统文化“真实性”的影响,意在揭示保护传统文化“真实性”的重要意义．     

抗战文学功能的美学思考

文学在抗战时期顺应历史潮流,宣传抗战促使抗战达到全面动员;这同时也促使了文学与当时的社会现实全面而整体的结合,走向现实主义,实现了抗战文学建国与建立新文艺的双重目标。由此,文学与抗战的结合充分显示了文学在抗战时期的作用和功能,展示了文学在特殊历史时期的特殊作用,同时,也为文学开拓了一个崭新的审美表现空间,使文学呈现出不同的文化特征和审美追求。     

Simple Preparation of Spherical Activated Carbon with Mesoporous Structure from Phenolic Resol and Associated Catalytic Performance in Isobutane Dehydrogenation

This study provides a detailed report on the synthesis of spherical activated carbon with mesoporous structure using a soluble low molecular weight phenolic resol precursor through an ammonium alginate assisted sol–gel method. The effects of calcinating temperature and the addition of CaCO_3 as a pore-enlarging agent on texture structure and catalytic performance in isobutane dehydrogenation to isobutene were investigated. Characterization of N_2 sorption,mechanical strength tests,and optical photographs confirmed that the obtained carbon materials had high mechanical strength,a good degree of sphericity,and a large surface area. Introducing CaCO_3 as a pore-enlarging agent during the preparation process promoted the formation of a mesoporous structure of carbon spheres and evidently increased the surface area and oxygen content,which can improve isobutane conversion and isobutene selectivity of these carbon spheres. The conversion of isobutane reached up to 28% for this spherical activated carbon,and the selectivity of isobutene reached up to 96%. Isobutane conversion increased with an increase in calcination temperature due to an increase in the oxygen content,whereas the selectivity of isobutene decreased due to the slight decrease in the specific surface area.     

从华东煤矿公司看刘鸿生的辩证发展观

刘鸿生投资华东煤矿公司反映了其具有辩证色彩的经济思想：既要顺应时代热潮，又须开拓新路；既要垂直伸延，又须横向联合；既要分散投资，又须集中分散投资，又须集中管理；既要立足经济中心，又须发展周边地区。     

不同文化背景下的"女强人"人生轨迹--王熙凤与思嘉丽形象比较

王熙凤和思嘉丽分别是东西方小说的“女强人”形象代表,她们为权力而奋斗的故事是“女强人”的成功之道。性格的差异和手段的不同,使她俩有着不同的命运,她们的形象也闪烁出不同的光芒。通过分析两者的性格和命运来探讨她们形象的异同。     

论建设单位在工程实施阶段的造价管理

在工程实施阶段,虽然节约投资、降低造价的空间不大,但浪费投资、增加造价却有极大的可能性,因此,在此阶段必须组织工程招标,加强工程合同管理,强化施工过程管理,严格控制工程变更,提升工程结算水平,从而切实有效控制该阶段的工程造价,以确保建设单位的投资效果。