1860年汕头开埠始末考略

该文根据国家权威档案文献,论述1860年汕头开埠始末的曲折过程;指出,汕头开埠是第二次鸦片战争清政府屈辱妥协外交路线的产物,是中华民族的屈辱史,是粤东门户被迫＂开放＂史,也是潮汕历史大走向的重要转折点。今人应以胡乔木《国史事典》的题词＂在沉重的历史中,汲取奋进的力量＂为警示,＂知耻近于勇＂,爆发奋进之力,建设美好家园。     

试论詹安泰先生的《词境新诠》

《词境新诠》一文是詹安泰先生发表在1947年第1期《文教》杂志上的一篇长文,但詹安泰先生的《词学研究》、《宋词研究》、《宋词散论》、《詹安泰词学论稿》、《詹安泰词学论集》以及《詹安泰文集》都不曾收录,此文应是詹安泰先生词学研究中“论境界”的原稿。该文一是对《词境新诠》的主要内容作了简要评述;二是追溯詹安泰先生本人对此文...     

中外幼教机构工作人员聘任条件的比较——基于对各国幼教机构规程的分析

我国现行的<幼儿园工作规程>(以下简称<规程>)是我国法律位阶最高的学前教育法规性文件,已经正式颁布实行了15年,随着社会政治经济文化与学前教育事业的发展,急需对其进行修订,以适应新的发展形势.其中,<规程>第六章主要步及幼儿园工作人员的聘任条件.与其他国家和地区的相关规章进行比较和分析,可以发现我国<规程>对幼儿园工作人员聘任条件的规定并不算低,甚至更高,这并不意味着<规程>在修订时应降低标准,因为我国<规程>的制定目的是提高幼儿园保育与教育质量.而很多国家与地区的相关规章只是关于幼教机构开办的最低标准,不过我们还是可以从中获得诸多启示,如应进一步加强<规程>的可操作性,对园长、教师、保育员培训的名称、资格证书的等级、培训时间的长短等做出更为具体、细致的规定,同时增强规定的弹性,方便根据不同情况提出不同的要求,以让有不同优势的人参与到幼儿教育工作中来;应增加有关对园长、教师、保育员特定个性与气质的要求,以保证保育和教育质量及教师队伍的稳定;应对厨师和驾驶员的聘任严格把关,提出有关的具体聘任条件;应设定园长、教师、保育员的最低年龄,以避免因身心不成熟的人照顾幼儿而可能造成的伤害等.     

Dependence of electrical and optical properties of IGZO films on oxygen flow

Amorphous InGaZnO (a-IGZO) films were deposited on the corning eagle XG (EXG) glass substrates using magnetron sputtering method. The structure, surface morphology, electrical and optical properties of these films were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), semiconductor parameter analyzer and spectrophotometry, respectively. The influence of oxygen flow on the electrical properties of IGZO thin films was studied, showing that increasing oxygen flow changes the resistivity with six orders of magnitude. The contact resistance of ITO/IGZO is 7.35×10⁻² Ω·cm², which suggests that a good ohmic contact exists between In₂O₃: Sn (ITO) and IGZO film.     

3DV quality model based depth maps for view synthesis in FTV system

Depth maps are used for synthesis virtual view in free-viewpoint television (FTV) systems.When depth maps are derived using existing depth estimation methods,the depth distortions will cause undesirable artifacts in the synthesized views.To solve this problem,a 3D video quality model base depth maps (D-3DV) for virtual view synthesis and depth map coding in the FTV applications is proposed.First,the relationships between distortions in coded depth map and rendered view are derived.Then,a precisely 3DV quali...     

Nearest neighbor search algorithm based on multiple background grids for fluid simulation

The core of smoothed particle hydrodynamics (SPH) is the nearest neighbor search subroutine. In this paper, a nearest neighbor search algorithm which is based on multiple background grids and support variable smooth length is introduced. Through tested on lid driven cavity flow, it is clear that this method can provide high accuracy. Analysis and experiments have been made on its parallelism, and the results show that this method has better parallelism and with adding processors its accuracy become higher, thus it achieves that efficiency grows in pace with accuracy.     

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.     

Space- and time-efficient approach for virtual machine provisioning

As a new promising paradigm, cloud computing can make good use of economics of scale and elastically deliver almost any IT related services on demand. Nevertheless, one of the key problems remaining in cloud computing is related to virtual machine images, which require a great amount of space/time to reposit/provision, especially with diverse requests from thousands of users simultaneously. In this paper, by using the splitting and eliminating redundant data techniques, a space and time efficient approach for virtual machines is proposed. The experiments demonstrate that, compared with existing solutions, our approach can conserve more disk space and speed up the provisioning of virtual machines.     

Rotenone induces more serious learning and memory impairment than α-synuclein A30P does in Drosophila

Parkinson’s disease (PD) is a heterogenous disease caused by multifactorial etiology. PD is characterized by the loss of dopaminergic (DA) neurons in the substantia nigra and the accumulation of Lewy bodies. In this study, two Drosophila PD models by exposing Drosophila to rotenone (sporadic PD models) are proposed, and the human α-synuclein A30P protein (family PD models) in Drosophila is expressed respectively. Both models recapitulated the main human PD symptoms including the loss of dopaminergic neurons...     

乾嘉骈文理论中的地位论

乾嘉时期是清代骈文理论和创作的高峰期。在和古文对举的话语建构中,乾嘉骈文一方面形成了自己的理论系统;另一方面促使了自身文体的独立。不管是与古文求对等地位、争文章正宗,还是主张骈散交融、奇偶不拘等,都反映了此时骈文理论的繁荣。之所以求对等,是因为骈文不是齐梁道弊文衰的产物,经史典籍中俪辞已经肇兴,先秦两汉文章中也多对偶,韩愈对骈文的批判根本不能成立;自然事物多为奇偶相生,甚至非偶不成,文章体制自然可以骈散并立,并驾齐驱。而争正统则是在乾嘉骈文繁荣的背景下,有些文士不满足于仅仅和古文求对等,而是彻底颠覆古文文统,将骈文视为文章正统,古文根本不是"文",是子部杂家之"语"。这就大大冲击了唐宋以来的古文文统,颠覆了唐宋以来普遍认同的文章正宗的地位。而主张骈散交融,以文意和文气为旨归,则是嘉庆末以来,随着汉宋学术的交融和对骈文、古文特征的全面认识后,文士文学思想成熟的结果。对这些问题的阐释将会对深化清代骈文研究有所裨益。