七元甲子术研究

通过对西夏、敦煌出土历书中二十八宿纪日连续性的检验,将七元甲子法的行用上推至五代时期,远早于目前学界的估计;同时,文章认为,七元甲子法出现以后,二十八宿纪日逐渐进入历书,成为历注的一部分,并在众多历注内容中地位逐渐提高。通过对七元甲子法起源的分析,作者得出以下结论:"七元甲子法"与九宫配年可能始自唐曹士蒍的《符天历》;《符天历》的历首确始于唐显庆五年雨水,而非目前学界普遍认为的该年正月朔;该历的历元、积日算法等内容的编制皆借鉴了《九执历》,其中的某些内容(如"七元甲子法")很可能首先在敦煌、西夏等边地自制历书时被采纳、行用;中原汉地的官方历书在唐后开始逐渐接受《符天历》中的某些内容,最迟至南宋时"七元甲子法"即在官历中固定下来,中国古代传统的具注历因此而逐渐定型。

元甲学校创办的成因及对民间社团发展的意义

清末民初,佛山元甲学校的创办为全国武术的发展和武术在广东的普及提供了条件。精武会在广东的繁荣为佛山分会办学奠定基础,武术进入新学制体育课程为其创办学校创造了良机。元甲学校的创办对当时的体育界做出了贡献,对国民教育发挥了重要作用,这对现今民间社团发展也具有一定的借鉴意义。

超级OK组

姓名:李念毕业院校:上海戏剧学院电影作品:《霍元甲》电视剧作品:《极速的浪漫青春》《江湖俏佳人》生日:5月30日籍贯:湖北武汉身高:163cm体重:45kg最喜欢的歌曲:《勇气》、《童话》

讴歌各族榜样 促进改革开放——贵州摄成大型彩色纪录片《苗岭之鹰》

一部热情讴歌改革开放以来贵州省各条战线的16位少数民族先进人物的大型纪录片《苗岭之鹰》,在山城贵阳首映后,引起观众热烈反响。这部影片是由省委宣传部、省文化厅、省民委联合组织撰写、委托上海科学教育电影制片厂摄制。影片是《我们贵州人》的姊妹篇,共分5集,即《绿色的希望》、《领头的大雁》、《燃烧的红烛》、《坚实的足迹》、《赤子的深情》。影片反映了贵州省16位少数民族先进模范人物的事迹,他们是“黄平县计生委主任杨胜凡(苗族)。

似梦非梦此情中——试论张翅的《梦断东方》

海明威在回答奥地利人坎恩迪斯基有关美国文学创作的问题时认为:一个运气好的作家可以使自己的作品达到“第四度或第五度空间的境界。”海明威在这里是借用了物理学的术语。所谓一度空间是指线,二度空间是指平面,三度空间是指立体,而四度和五度空间则是包含着超越现实世界的幻想之意。这种幻想,从某种意义上来说,也可以看成是一种“梦”境。这种梦境,往往是作家在艺术创作中所刻意追求的诗境。

电视剧创作二题

一、电视艺术对理论的呼唤随着科学技术的迅猛发展和人民物质生活的日益提高,电视机已逐渐成为千百万家庭必备的文化用品。在发达国家,电视机已经普及到每家每户,有的家庭甚至不只一部两部.在我国,据说目前每天也有一两亿人口收看电视。可见,电视具有无与伦比的群众性。在电视节目中,最受广大群众欢迎的节目之一是电视剧.据八四年的报纸报道,日本电视连续剧《阿信》播映时,日本全国平均有一半以上的人收看这个节目。有的城市。

组合恒等式的证明

一、直接利用组合数公式证明二、利用组合定义证。 [例1] 求证 Cnm+1+Cnm-1+2Cnm=Cn+2m+1 证:从n+2个不同元中取m+1个元的组合可分四类:i)含指定元甲、乙的有Cnm-1种,ii)不含甲、乙的有Cnm+1种,iii)、iv)含甲不含乙与含乙不含甲的各有Cnm种。由加法原理得原式。三、利用组合性质证。如例1原式左=(Cnm+1+Cnm+(Cnm-1+Cnm)=Cn+1m+1+Cn+1m=Cn+2m+1。

看电影

神奇生物大聚会《博物馆奇妙夜》又来了!这一次各位任性倔强的展品们要从原来的豪华住所搬到另一家博物馆去展出。不想过程中却发生了巨大的意外,不仅导致大家再次"活"了起来,更有新生的反派趁势复苏。

Cu(Ⅱ),Ni(Ⅱ)Complexation with Acid Alizarine Blue B in the Presence of Cetyltrimethylammonium Bromide

The coordination reactions of Cu（Ⅱ） and Ni（Ⅱ） with acid alizarine blue B （AABB） in the presence of cetyltrimethylammonium bromide （CTAB） micelle were investigated using the microsurface adsorptionspectral correction technique （MSASC）. The aggregation of AABB on CTAB followed the Langmuir isothermal adsorption law. The enrichment of AABB on CTAB sensitized the complexation between Cu（Ⅱ） or Ni（Ⅱ）and AABB. The binding ratio of AABB to CTAB was 1：2.5, and monomeric aggregate, AABB2CTAB5, was formed with an adsorption constant of 5.95×10^5 at 20 ℃ or 2.48×10^5 at 40 ℃. In the ternary complexation, the ratio of AABB：Cu and AABB：Ni were 1：1 and 1：2.5, respectively. Two types of aggregates, Cu2.AABB2·CTAB80 and Ni5.AABB2.CTAB80, were formed.

Construction of retroviral vector carrying HSV tk gene under control of human AFP enhancer core sequence and human pgk promotor *

AIM Tenstruct retroviral vector bringing HSV tk gene under control by human AFP enhancer core sequence and human pgk promotor.

Immunogenicity of formaldehyde and binary ethylenimine inactivated infectious bursal disease virus in broiler chicks

Infectious bursal disease virus (IBDV) was inactivated by two different chemicals—formaldehyde and binary ethylenimine (BEI). Formaldehyde was used at 0.1% and 0.2%, while BEI was used at concentrations of 0.001 and 0.002 mol/L. These four vaccines were tested for their efficiency in generating humoral immune response in different groups of broiler chicks. Both BEI-inactivated vaccines gave relatively higher antibody titers and were almost twice as efficient as formaldehyde-inactivated ones.

Vapor-Liquid Equilibria for Dimethyl Carbonate-n-Butyl Acetate Binary System at 101.325kPa

The vapor-liquid equilibrium (VLE) data for the dimethyl carbonate-n-butyl acetate binary system were measured by an Ellis equilibrated distillator. The experimental data were checked for their thermodynamic consistency through statistical methods. The VLE data was correlated with Wilson and NRTL activity coefficient models and also with the calculation of the vapor phase fugacity coefficient by the modified Peng-Robinson equation of state.

Densities and Viscosities of the Ionic Liquid [C4mim][PF6]＋ N,N-dimethylformamide Binary Mixtures at 293.15 K to 318.15 K

Viscosities and densities for 1-butyl-3-methylimidazolium hexafluorophosphate （[C4mim][PF6]） and N, N-dimethylformamide （DMF） binary mixtures have been measured at the temperature range from 293.15 K to 318.15 K. It is shown that the viscosities and densities decrease monotonously with temperature and the content of DMF. Various correlation methods including Arrhenius-like equation, Sedclon et al.＇s equation, Redlich-Kister equation with four parameters, and other empirical equations were applied to evaluate these experimental data. A model based on an equation of state Ior estimating the viscosity of mixtures containing ionic liquids were proposed by coupling with the excess Gibbs free energy model of viscosity, which can synchronously calculate the viscosity and the molar volume. The results show that the model gives a deviation of 8.29% for the viscosity, and a deviation of 1.05% for the molar volume when only one temperature-independent adjustable parameter is adopted. The correlation accuracy is further improved when two parameters or one temperature-dependent parameter is used.

Catalytic Conversion of Biomass-Derived Polyols into Para-xylene over SiO2-Modified Zeolites

This work proved that biomass-based polyols (sorbitol, xylitol, erythritol, glycerol and ethanediol) were able to be converted into high-value chemical (p-xylene) by catalytic cracking of polyols, alkylation of aromatics, and the isomerization of xylenes over the SiO2-modified zeolites. Compared to the conventional HZSM-5 zeolite, the SiO2-containing zeolites considerably increased the selectivity and yield of p-xylene due to the reduction of external surface acidity and the narrowing of pore entrance. The influences of the methanol additive, reaction temperature, and types of polyols on the selectivity and yield of p-xylene were investigated in detail. Catalytic cracking of polyols with methanol significantly enhanced the production of p-xylene by the alkylation of toluene with methanol. The highest p-xylene yield of 10.9 C-mol% with a p-xylene/xylenes ratio of 91.1% was obtained over the 15wt%SiO2/HZSM-5 catalyst. The reaction pathway for the formation of p-xylene was addressed according to the study of the key reactions and the characterization of catalysts.

Measurements and thermodynamic modeling of liquid–liquid equilibria in ternary system 2-methoxy-2-methylpropane+p-cresol+water

Liquid-liquid equilibrium （LLE） data for the ternary system 2-methoxy-2-methylpropane （methyl tert-butyl ether） ＋ p-cresol ＋ water was measured at atmospheric pressure and temperatures of 298.15 K and 313.15 K. From the distribution coefficients and selectivity, it was found that 2-methoxy-2-methylpropane is an efficient solvent to extract p-cresol from wastewater. The consistency of the experimental tie-line data was verified with the Hand and Bachman equations. These data were also correlated with the non-random two liquid （NRTL） and universal quasi-chemical correlation activity coefficient （UN1QUAC） models to yield binary interac- tion parameters for p-cresol extraction process evaluation. Both models agreed with experiments very well, yet the NRTL model showed even smaller average deviation than the UNIQUAC model.

Isobaric Vapor-Liquid Equilibrium for Methyldichlorosi-lane+Methylvinyldichlorosilane+Toluene and Constituent Binary Systems

Vapor-liquid equilibrium (VLE) for a ternary system of methyldichlorosilane + methylvinyldichlorosi-lane + toluene and constituent binary systems were measured at 101.3kPa using a new type of magnetical pump-ebulliometer. The equilibrium compositions of the vapor phase of binary systems were calculated indirectly from the total pressure-temperature-liquid composition (pTx). The experimental data were correlated with the Wilson and NRTL(non-random two liquid) equations. The parameters of the Wilson model were employed to predict the ternary VLE data. The calculated boiling points were in good agreement with the experimental ones.

An optical sensing system for the concentration of methane based on fiber Bragg gratings

Based on a special catalyst and fiber Bragg gratings (FBGs), an optical sensing system is proposed to measure the concen- tration of methane. The temperature of the catalyst rises rapidly as the concentration of methane increases, and hence it can be detected by an FBG-type sensor through monitoring the wavelength shift of the reflection spectrum. The experimental results show the good performances of our system, such as the high resolution and temperature stability.

Liquid-Liquid Equilibria of the Water-Ethanol-Dimethyl Succinate Ternary System

Liquid-liquid equilibrium (LLE) data for the ternary systemwater-ethanol-dimethyl succinate have been determined experimentallyat temperatures ranging from 298.15 to 318.15 K at 5 K intervals.Complete phase diagrams were obtained by determining solubility andthe tie-line data. Tie-line compositions were correlated byOthmer-Tobias method. The universal quasichemical functional groupactivity coefficient (UNIFAC) and modified UNIFAC methods were usedto predict the phase equilibrium in the system using the interactionparameters deter- Mined from experimental data between groups CH_3,CH_2, OH, CH_3 COO and H_2O.

Isobaric Vapor-Liquid Equilibrium of Binary Systems： p-Xylene ＋ （Acetic Acid, Methyl Acetate and n-Propyl Acetate） and Methyl Acetate ＋ n-Propyl Acetate in an Acetic Acid Dehydration Process

The vapor-liquid equilibrium data of four binary systems (acetic acid +p-xylene, methyl acetate +n-propyl acetate, n-propyl acetate +p-xylene and methyl acetate +p-xylene) are measured at 101.33 kPa with Ellis equilibrium still, and then both the NRTL and UNIQUAC models are used in combination with the HOC model for correlating and estimating the vapor-liquid equilibrium of these four binary systems. The estimated binary VLE results using correlated parameters agree well with the measured data except the methyl acetate +p-xylene system which easily causes bumping and liquid rushing out of the sampling tap due to their dramatically different boiling points. The correlation results by NRTL and UNIQUAC models have little difference on the average absolute deviations of temperature and composition of vapor phase, and the results by NRTL model are slightly better than those by UNIQUAC model except for the methyl acetate +n-propyl acetate system, for which the latter gives more accurate correlations.

Improving anti-sulfur performance of methane sensors by new vectors and active components

Conventional Pd/γ-A12O3 methane sensors are easily poisoned in a sulfur-containing atmosphere, with a subsequent decrease in sensitivity and the working life of methane sensors. We mainly investigated the effect of nanotechnology and a cerium co-catalyst on the stability and anti-sulfur performance of methane sensors. In our experiment, an anti-sulfur methane sensor was prepared by immersing cerium-containing γ-alumina nanometer elements into a Pt-Pd bimetallic nanometer catalyst. The experi- ment about the sensitivity and stability performance of different catalytic methane sensors indicate that sensitivity, decreased by catalyst sulfur poisoning, is improved significantly by adding cerium to the vector. As well, the long-term operational stability of methane sensors increased significantly.