四

The following conclusions have been made in this paper.(1) Based on CO_2 flux data of eddy covariance, variation characteristics of gross primary productivity in four flux observation stations were studied, which are an alpine meadow, an alpine shrub meadow, a swamp alpine meadow and a steppe alpine meadow at Dongxiong. The results show that photosynthetic capacity of the alpine meadow is the highest, and the annual total GPP is 652.2g C/m~2. Daily-differencing approach is used to analyze the random error of CO_2 fluxes measurements. The results show that the distribution of random error follows more closely follows a double-exponential, rather than a normal distribution, capturing the high peak and thick tail, and the random error varies with environment variables, which violates the assumptions for the ordinary least squares fitting with normality and homoscedasticity, consequently, we introduce maximum likelihood method for parameter optimization.

本文主要在以下几个方面开展工作并获得了一些认知和结论：(1)通过分析样带区域内高寒草甸、高寒灌丛、沼泽化湿地和草原化高寒草甸四个通量观测站点草地生态系统总初级生产力变化特征，研究结果表明HBBT矮嵩草草甸生态系统植被光合作用能力较强，年GPP总量为652.2 gC/m~2，明显高于其他三种生态系统；通过利用"单塔日变化法"获得四站点通量观测数据随机误差，结果表明通量观测随机误差概率分布呈现尖峰厚尾的特征，与正态分布相比，更服从双边指数分布，进一步分析表明通量观测随机误差随环境变量(风速、温度和光合有效辐射)的变化而变化，这违背了普通最小二乘法进行生态过程模型参数优化正态分布且误差同质的假设，因此本研究中引入最大似然法进行生态过程模型参数优化。

Lessing said that on second thought, she was not as surprised "because this has been going on for something like 40 years," referring to the number of times she has been mentioned as a likely honoree.

听到屋里不断传来的电话声，莱辛女士说回头想来也并没有像突然"得到一个追求了四十年的东西"那样惊喜——她有四十次入选最佳候选人名单。

The dots represent the four colors of Hopi corn, and the four racial colors of humanity.

圆点表现了霍皮人玉米的四种颜色和四种人类的颜色。

And he rose up and ate and drank, and he went in the strength of that food forty days and forty nights to Horeb the mount of God.

19：8 他就起来吃了喝了，仗着这饮食的力，走了四十昼四十夜，到了神的山，就是何烈山。

This line will connect another important one—Beijing—Shanghai Rapid Railway to form a network of "4-Vertical and 4-Horizontal Railways" in China, at the same time, this line will promote the integration of the Yangtze River Delta region together with other railway lines by developing a "1~2 hour traffic circle".

该线是连接京沪高铁的另一条重要高速铁路，是全国"四纵四横"高速铁路网中的"四横"之一沪昆高铁的起始段，并与沪宁、宁杭、杭甬等铁路组成长三角地区各主要城市间的"1~2小时交通圈"，推动长三角地区的一体化发展。

During the 19th and 20th centuries there were huge achievements on philosophy literature art and music; a variety of activities were also booming at that time Richard Strauss(1864-1949) born at that era when the social phenomena influenced his music learning process combined the classical and romantic music styles and further developed his unique composing style There were 5 chapters in the dissertation The research motivation purposes methodology and the literature review were included in Chapter One Chapter 2 focused on understanding how the history background and personal attitude influenced Richard Strauss' composing style Through the study of the romantic musicians like Franz Schubert1797-1828 Robert Schumann(1810-1856 Johannes Brahms(1833-1897) Hugo Wolf(1860-1903) Gustav Mahler(1860-1911) and etc I attempted to get a complete picture of musical evolution in Chapter 3 In addition Richard's classic compositions were categorized and organized in order to gain a deep understanding of his music From the study and the analysis of Strauss'"Vier letzte Lieder" the features styles the format and the life of the two poets Hermann Hesse1877-1962）and Joseph von Eichendorff(1788-1857 were explored and the relationship between the music of this composition and the poetry were also discussed Chapter 5 summarized the main arguments to give a short account of Strauss' lifetime rich experiences and thinking in his eighties

横跨十九、二十世纪的理察·史特劳斯（Richard Strauss，1864-1949）正是欧洲人文发展空前灿烂的年代，无论在哲学思想、文学、美术以及音乐方面，都有辉煌的成就。在他音乐学习历程中，结合了古典时期及浪漫时期两种音乐风格，发展出独特的作曲风格。本论文分成五章：第一章绪论包括研究动机、研究目的、研究方法及步骤以及文献探讨；第二章则从对理查史特劳斯生平的详实记载中，了解他创作作品的时代背景和心情；第三章则就浪漫时期艺术歌曲作家舒伯特（Franz Schubert1797-1828）、舒曼（Robert Schumann1810-1856）、布拉姆斯（Johannes Brahms1833-1897）、沃尔夫（Hugo Wolf1860-1903）及马勒（Gustav Mahler1860-1911）等，以诗人、旋律、伴奏型态及曲式和声，稍加整理并说明，以便了解艺术歌曲在此时期之演变过程。并将理查史特劳斯艺术歌曲作品分类统整，藉此对他的艺术歌曲能有更深一步的了解。第四章《四首最后的歌》之音乐探究与分析，则探讨此部作品诗人赫塞（Hermann Hesse 1877 - 1962）及艾辛朵夫（Joseph von Eichendorff﹐1788-1857）的生平和作品特色，以及诗的结构与格式，和此部作品音乐与诗的关系。第五章结语说明史特劳斯一生丰富经历与晚年想法，创作出一组宁静感人又深刻的终曲。

In the fourth chapter, four new complexes of hydrazide of podophyllic acid with transition metals have been prepared. Elemental analysis, molar conductivity, IR,〓 NMR and TG-DTA were used to characterize them. The results show that general formula of the complexes is M〓(n=0 or 2). The ligand is linked through the carbonyl oxygen and the terminal nitrogen of the hydrazide base to the transition metal ions in bidentate mode.

第四章 合成了四种鬼臼酰肼的过渡金属配合物，通过元素分析、摩尔电导、红外光谱、核磁共振氢谱和热重-差热对配合物进行了表征，研究结果表明，配合物的组成为M〓（n=0或2），配体是通过羰基氧和肼基上的端氮以双齿形式与金属离子配位的。

The main products are: calcium sulfate / calcium nitrate / calcium carbonate / copper sulfate / chloride, copper / zinc sulfate / nitric acid zinc / zinc chloride / potassium sulfate / potassium chloride / potassium bromide / potassium aluminum sulfate / potassium dihydrogen phosphate / 2 of potassium hydrogen phosphate / sodium bromide / sodium chloride / sodium nitrate / sodium fluoride / trisodium phosphate / sodium dihydrogen phosphate / disodium hydrogen phosphate / crystallization of sodium carbonate / anhydrous sodium carbonate / aluminum sulfate / nitrate aluminum / crystallization of aluminum chloride / aluminum hydroxide / nitrate Fe / hydrobromide / oxalic acid / boric acid / citric acid / barium chloride / Azone / magnesium sulfate / magnesium nitrate / magnesium chloride / ammonium chloride / ammonium sulfate / Bifluoride ammonium / ammonium aluminum sulfate / ferrous ammonium sulfate / ammonium dihydrogen phosphate / diammonium hydrogen phosphate / bromide / tetrabutylammonium bromide / chloride, nickel / nickel nitrate / sulfate nickel / cadmium chloride / cadmium sulfate / nitrate Cadmium / Cadmium Carbonate / Strontium / strontium nitrate / sulfuric acid manganese / manganese chloride / 50% manganese nitrate solution / stannous chloride / zinc chloride, such as crystallization of the four largest packing of chemical reagents AR and CP level.

主要产品有：硫酸钙/硝酸钙/碳酸钙/硫酸铜/氯化铜/硫酸锌/硝酸锌/氯化锌/硫酸钾/氯化钾/溴化钾/硫酸铝钾/磷酸二氢钾/磷酸氢二钾/溴化钠/氯化钠/硝酸钠/氟化钠/磷酸三钠/磷酸二氢钠/磷酸氢二钠/结晶碳酸钠/无水碳酸钠/硫酸铝/硝酸铝/结晶三氯化铝/氢氧化铝/硝酸铁/氢溴酸/草酸/硼酸/柠檬酸/氯化钡/氮酮/硫酸镁/硝酸镁/氯化镁/氯化铵/硫酸铵/氟化氢铵/硫酸铝铵/硫酸亚铁铵/磷酸二氢铵/磷酸氢二铵/溴化铵/四丁基溴化铵/氯化镍/硝酸镍/硫酸镍/氯化镉/硫酸镉/硝酸镉/碳酸镉/碳酸锶/硝酸锶/硫酸锰/氯化锰/50%硝酸锰溶液/氯化亚锡/结晶四氯化锌等大包装化学试剂的AR和CP级别。

The paper consists of four chapters:In chaper 1, we introduce the background and signficance, research and actuality on oscillation of functional partial differential equations; we present research subject in this paper;In chaper 2, we discuss oscillatory property of systems of parabolic differential equations with delays and obtain necessary and sufficient conditions for the oscillation of their solutions; we show the difference between oscillatory property of systems of parabolic differential equations with delays and that of systems of partial differential equtions without delays; we explain the main results with examples;In chapter 3, we discuss oscillatory property of systems of functional parabolic differential equations of neutral type; we obtain some sufficient conditions for the oscillation or full oscillation of their solutions under some conditions; we explain the main results with examples;In chapter 4, we discuss oscillatory property of systems of functional hyperbolic differential equations of neutral type; we obtain sufficient conditions for the oscillation or full oscillation of their solutions under some conditions; we explain the main results with examples.

全文共分四章：第一章简要介绍了泛函偏微分方程的振动的背景和意义、对其研究的简单历史和现状，给出了本文的主要研究对象；第二章讨论了一类时滞抛物方程组解的振动性质，获得了判断其所有解振动的一个易于验证的充要条件；指出了这类具有时滞偏差变元的抛物方程组解的振动性质和不具有时滞偏差变元的抛物方程组解的振动性质的差异；并举例对主要结果进行阐明；第三章讨论了一类中立型抛物方程组解的振动性质，获得了在给定的条件下其所有解振动或全振动的若干充分条件；并举例对主要结果进行阐明；第四章讨论了一类中立型双曲方程组解的振动性质，获得了在给定的条件下其所有解振动或全振动的若干充分条件；并举例对主要结果进行阐明。

In the winter of '46-7 there came a hundred men of Hyperborean extraction swoop down on to our pond one morning, with many carloads of ungainly-looking farming tools —— sleds, plows, drill-barrows,turf-knives, spades, saws, rakes, and each man was armed with a double-pointed pike-staff, such as is not described in the New-England Farmer or the Cultivator.

在一八四六——一八四七年的冬季，来了一百个出身于北极的人，那天早晨，他们涌到了这湖滨来，带来了好几车笨重的农具，雪车，犁耙，条播机，轧草机，铲子，锯子，耙子，每一个人还带着一柄两股叉，这种两股叉，就是《新英格兰农业杂志》或《农事杂志》上都没有描写过的。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。