在后地

Chapter 1 gives the background,current research process of relatedproblems and summarizes this thesis\'s work.In chapter 2,we study the Brownian motion with holding and jumping on the boundary.We use the resolvent method to obtain the infinitesimal generator because the domain of the infinitesimal generator is essentially the same as the range of the resolvent.Knowledge of this range and of the differential operator determines uniquely the infinitesimal generator.Since the semigroup generated by the DHJ is not strongly continuous,to use the nice property of strongly continuous semigroup in analytic theory,in chapter 3 we show that the dual is strongly continuous and derive ergodicity through spectral radius formulas and finally obtain the ergodic theorem by duality. In chapter 4,we discuss a class of a more general process---one dimensional Feller diffusion proposed by W.Feller in 1954.The Feller diffusion allows the possibility of jumps from boundary to boundary,not only from boundary to the interior.We give the stationary distribution of this process.

具体地，本文的结构如下：第一章给出了问题产生的背景，研究现状及本文的主要工作；第二章研究了在边界上逗留后随机跳的布朗运动，我(来源：3dABC论文网www.abclunwen.com)们用预解算子的方法得到其无穷小生成元，因为无穷小生成元的定义域本质上就是预解算子的值域，知道这个值域和微分算子形式就能唯一地决定无穷小生成元；由于DHJ过程产生的半群不是强连续的，为利用强连续半群的一些漂亮性质，在第三章中我们证明其对偶半群是强连续的，然后由谱半径公式得到遍历性并且最后由对偶得到遍历定理；第四章讨论了Feller在1954年引入的更广的一类过程----一维Feller扩散过程，Feller扩散过程允许有从边界到边界的跳发生，即不仅仅局限于从边界到内部的跳，在这一章中，我们给出了一维Feller扩散过程的平稳分布；在第五章，我们讨论了一些相关的问题，给出了DHJ过程对应的PDE问题及特征值与收敛速度的关系。

Days later,in order to find out the influence of the immune polysaccharide on the growth rate and disease-resistance of the Eriocheri sinensis, the weight of the Eriocheri sinensis were monitored and the experimental were challenged with the histoplasmin of diseased Eriocheri sinensis.

结果表明，在中华绒螯蟹的饲料中添加每千克蟹体重400.0mg至1200.0mg的免疫多糖，对中华绒螯蟹的生长速度和身体颜色等没有显著影响；能有效地增强供试中华绒螯蟹的抗病力，与对照组相比，经口服攻毒后投喂不同剂量免疫多糖试验组的中华绒螯蟹有效率为52.4%~66.77%，而经注射攻毒后各试验组中华绒螯蟹的有效率为39.2%~49.9%，口服攻毒后的有效率稍高可能与病原体的感染方式有关。

Yet such was the Fright I had taken at the Moors, and the dreadful Apprehensions I had of falling into their Hands, that I would not stop, or go on Shoar, or come to an Anchor; the Wind continuing fair,'till I had sail'd in that manner five Days: And then the Wind shifting to the southward, I concluded also that if any of our Vessels were in Chase of me, they also would now give over; so I ventur'd to make to the Coast, and came to an Anchor in the Mouth of a little River, I knew not what, or where; neither what Latitude, what Country, what Nations, or what River: I neither saw, or desir'd to see any People, the principal thing I wanted was fresh Water: We came into this Creek in the Evening, resolving to swim on shoar as soon as it was dark, and discover the Country; but as soon as it was quite dark, we heard such dreadful Noises of the Barking, Roaring, and Howling of Wild Creatures, of we knew not what Kinds, that the poor Boy was ready to die with Fear, and beg'd of me not to go on shoar till Day; well Xury said I, then I won't, but it may be we may see Men by Day, who will be as bad to us as those Lyons; then me give them the shoot Gun says Xury laughing, make them run wey; such English Xury spoke by conversing among us Slaves; however I was glad to see the Boy so cheerful, and I gave him a Dram (out of our Patroon's Case of Bottles) to chear him up: After all, Xury's Advice was good, and I took it, we dropt our little Anchor and lay still all Night; I say still, for we slept none!

但是，我已被摩尔人吓破了胆，生怕再落到他们的手里；同时风势又顺，于是也不靠岸，也不下锚，一口气竟走了五天。这时风势渐渐转为南风，我估计即使他们派船来追我。这时也该罢休了。于是我就大胆驶向海岸，在一条小河的河口下了锚。我不知道这儿是什么地方，在什么纬度，什么国家，什么民族，什么河流。四周看不到一个人，我也不希望看到任何人。我现在所需要的只是淡水。我们在傍晚驶进了小河口，决定一等天黑就游到岸上去，摸一下岸上的情况。但一到天黑，我们就听到各种野兽狂吠咆哮，怒吼呼啸，不知道那是些什么野兽，真是可怕极了！这可把那可怜的孩子吓得魂飞魄散，哀求我等天亮后再上岸。我说，"好吧，佐立，我不去就是了。不过，说不定白天会碰见人。他们对我们也许像狮子一样凶呢！"佐立笑着说，"那我们就开枪把他们打跑！"佐立在我们奴隶中能用英语交谈，虽然发音不太地道。见到佐立这样高兴，我心里也很快乐。于是我从主人的酒箱里拿出酒瓶，倒了一点酒给他喝，让他壮壮胆子。不管怎么说，佐立的提议是有道理的，我接受了他的意见。于是，我们就下了锚，静静地在船上躺了一整夜。我是说，只是"静静地躺着"，我们事实上整夜都没合过眼。

Baby I love you I love you say we together baby,you and me I can only give my love and show you what I am in the blast I breathe I will promise you my heart and give you what you need if you take some times And if you tell me you don't leave me any more but i love want blast forever woo~ I will ask you for your chance to try again to make a love or leave to better, woo~ oh~ I love you say we together baby say we together I need you I need you forever baby , you and me You say you how we know exactly who I am to how to understand woo~ I do right from the sideling,no way after said, if you read my mind If you tell me you don't leave me any more but i love want blast forever I will ask you for your chance to try again to make a love or leave to better, woo~ I love you say we together baby,say we together I need you I need you forever baby need you forever Remember when I news to while clear remember when I make you to cry.

宝贝我爱你我爱你说我们在一起宝贝，你和我我只能给我的爱和向你展示我我在风中呼吸我会向你保证我的心，并给您您所需要的如果您需要一些时间如果你告诉我你永远不要离开我但我想永远爱风 woo~我会问你寻求一次机会，创造一个更好的爱情，雨哦我爱你说我们一起宝贝说我们在一起我需要你我需要你永远的宝贝，你和我你说你如何，我们确切地知道我是谁，以怎样理解胡我的权利，从sideling ，没有办法后说，如果你看过我的心如果你告诉我你不离开我的任何更但我想爱永远爆炸我会问你有机会再试一次，使一个爱情或离开，以更好地，雨我爱你说我们在一起的婴儿，说我们在一起我需要你我需要你永远的婴儿需要你永远记得当我消息的同时，明确记得当我让你哭。

Sousa and his wife were enjoying a European vacation in 1896, when they saw a startling newspaper article. Sousa's band manager, David Blakely, had died a few days earlier. Soon Sousa and his wife were on a ship heading home to New York. On the journey home, Sousa started hearing "the rhythmic beat of a band playing within my brain. It kept on ceaselessly, playing, playing, playing. Throughout the whole tense voyage, that imaginary band continued to unfold the same themes, echoing and re-echoing the most distinct melody." When he got home he wrote down the music for what would become "The Stars and Stripes Forever."

苏沙和他的太太在1896年一次愉悦的欧洲之旅途中，看到一篇令人吃惊的报导，苏沙的乐团经理大卫布雷克在几天前突然去世，他们在知道这个消息后立刻搭船回到纽约，在返航途中，苏沙开始听见「乐团在我脑中演奏的节拍、不停地演奏、演奏、演奏，整个回程中那个想像中的乐团一直重复著同样的旋律、并重复演奏最特别的一段旋律」，在他回到家写下整首旋律后、就完成了「永恒的星条旗」的初稿。

Sousa and his wife were enjoying a European vacation in 1896, when they saw a startling newspaper article. Sousa's band manager, David Blakely, had died a few days earlier. Soon Sousa and his wife were on a ship heading home to New York. On the journey home, Sousa started hearing "the rhythmic beat of a band playing within my brain. It kept on ceaselessly, playing, playing, playing. Throughout the whole tense voyage, that imaginary band continued to unfold the same themes, echoing and re-echoing the most distinct melody." When he got home he wrote down the music for what would become "The Stars and Stripes Forever."

苏沙和他的太太在1896年一次愉悦的欧洲之旅途中，看到一篇令人吃惊的报导，苏沙的乐团经理大卫布雷克在几天前突然去世，他们在知道这个消息后立刻搭船回到纽约，在返航途中，苏沙开始听见「乐团在我脑中演奏的节拍、不停地演奏、演奏、演奏，整个回程中那个想像中的乐团一直重复着同样的旋律、并重复演奏最特别的一段旋律」，在他回到家写下整首旋律后、就完成了「永恒的星条旗」的初稿。

In chapter three, with the effective combination of the prior preference, posterior preference and interactive method, and based on the theory of satisficing decision making and goal programming, an interactive method for solving static or dynamic multicriteria programming is devised. In the method, by constructing the simplexes in the set of parameters and transforming them, the local preference information is interactively quested in th process of decision making. The prior and posterior preference are used to speed up the process of decision making and overcome the false convergency which may be occured in pure interactive algorithms. This method can be used to cope with linear, nonlinear and dynamic multicritcria programming.

在第3章多目标数学规划的参数单纯形方法中，通过多目标数学规划的验先偏好方法，交互式方式与验后偏好方法的有效组合，在满意决策和目标规划的理论基础上提出了一种求解多目标静态及动态规划的交互式方法，该方法通过在参数集中构造单纯形并进行其变换，在决策过程中交互地索取决策者的局部偏好信息，并利用决策者的验先偏好来提高决策过程进行的速度，及利用决策者的验后偏好来克服纯交互式算法中可能出现的假收敛现象。

I examed one of the pen closely and it looked certainly genuie.at the base of the gold cap,the words of 'made in america' was neatly inscribed.the man said that the pen was worth 50 pounds, but as a special favor he would like me have it for 3o pounds, i shaked my head and held up my five fingers indicating that i was willing to pay 5 pounds.gesticulating widely it is as if my offer outrageous,but he eventually ruduced the price to 10 pounds.shrugging my shoulds,i began to walk away .when a moment later,he run after me and thrusted the pen into my hands.though he kept throwing up his arms in despair, he readily accepted the price i gave him.i felt especially pleased with my wonderful bargarn until i got back in the ship.

我仔细察看了一枝钢笔，那看上去确实不假，金笔帽下方整齐地刻有&美国制造&字样。那人说那支笔值50英镑，作为特别优惠，他愿意让我出30英镑成交。我摇摇头，伸出5根手指表示我只愿出5镑钱。那人激动地打着手势，仿佛我的出价使他不能容忍。但他终于把价钱降到了10英镑。我耸耸肩膀掉头走开了。一会儿，他突然从后追了上来，把笔塞到我手里。虽然他绝望地举起双手，但他毫不迟疑地收下了我付给他的5镑钱。在回到船上之前，我一直为我的绝妙的讨价还价而洋洋得意。

Investigate the assisting of the relation and soil and groundwater monitoring data among the surface feature and image established the relation of the spectrum characteristic with surface feature ,using two kinds of classification and improved post-classification, methods lies two respects: 1Salt steep spectrum luminance value curve of ground higher than surface feature average luminance value curve obviously, and other surface feature luminance value lower than or have around average luminance value curve little wave water body mean the land water areas among them obviously, including the river and surface of water , surface of water of the reservoir and hole pool surface of water By view trend of the

从计算结果得出，盐渍地上的NDVI 值分布在一定范围内，这样就可以取一定的阀值，将反射率较低的盐渍地提取出来。根据盐渍地分布与地下水的相互关系，对分类后的图像进行处理，提高了精度。2 充分利用遥感与GIS 技术在地学分析中的优势，计算各类盐渍地面积、荒漠、水体面积变化，分析近三十年来研究区土地盐渍化动态变化的规律，包括面积变化、盐渍化程度的变化，分析大范围时间尺度上土地盐渍化动态发展的整体趋势。

Three types of community of 5000m^2, where herbaceous scrub, shrub forest and evergreen broad-leaved forest were damaged by M. micrantha, were established in the Country Park of Hong Kong. The herbicide sulfometuron-methy concentration 0.05~0.1 gm^(-2 was tested to Kill M. micrantha. The effect of herbicide sulfometuron-metny killing M. micrantha and its influence on other plants and species diversity in communities were analyzed.

在香港郊野公园内选择薇甘菊危害较严重的草灌丛、灌木林和常绿阔叶林3种群落类型，设置样地5000平方公尺，用0.05~0.1gm^(-2)嘧磺隆对样地中的薇甘菊进行化学防除试验，并在施用除草剂后3、5和14个月跟踪调查施药对薇甘菊的杀灭效果以及对样地中其他植物和群落物种多样性的影响。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。