可获得的

In our thesis, contents are organized as following In Chapter 1 we present our topic's internal and overseas research situations, theoretical and practical significance, and introduce the research object and contents, and the main contributions of this dissertation. Chapter 2 reviews the development of the stability results for nonlinear systems and some relevant recent results, which include Lyapunov and LaSalle-Yoshizawa theorems for nonlinear systems, and stochastic edition for stochastic nonlinear systems. Sontag's formula for systems affine in control is presented in the frame of CLF. The concepts of disturbance attenuation and the inverse optimality are also explained in this Chapter. In chapter 3 we present the solvable theorem of inverse optimal gain assignment problem, design the inverse optimal controller and the inverse optimal tracking controller for strict-feedback nonlinear continuous systems with unknown time-varing bounded disturbances and constant unknown parameters using an adaptive backstepping algorithm, which are nonlinear, continuous and are easier to realize. These designs are fully systematic and the algorithm can be directly coded in symbolic software. The results of simulation show the effectiveness of the control algorithms.

论文的结构如下：在第1章中，给出了本文研究课题的研究现状、理论意义和实际应用，并介绍了本文的研究对象、研究内容以及主要贡献；在第2章中，针对确定性非线性系统和随机非线性系统，分别介绍了Lyapunov定理、LaSalle-Yoshizawa定理及其随机版本；对仿射系统，在控制Lyapunov函数框架下，给出了Sontag公式；同时给出了非线性系统扰动抑制和逆最优控制问题的基本概念；在第3章中，针对具有未知时变有界扰动和未知定常参数的一类不确定非线性系统，给出并证明了逆最优增益配置可解定理，使用自适应Backstepping算法和均值定理，系统地设计了自适应逆最优控制器和逆最优跟踪器，这种设计方法可同时获得逆最优控制策略和自适应律，简单明了，仿真结果表明该控制算法的有效性，并给出了性能估计。

Abstract］ Objective This study investigates accommodative responses to three different kinds of accommodative stimuli (Maltese cross, E visual target and Chinese characters in rapid serial visual presentation) and discusses the differences in accommodative responses when fixation targets and reading tasks were compared.

马耳他十字视标为测量调节反应的经典视标，该视标中央可提供良好的细节，使受试者维持稳定注视，还可通过改变臂长，以获得不同注视距离的相同视角。E视标亦是常用的调节视标，它能够提供较好的细节以及相对稳定的空间频率。

The results show that the amorphous PLGA fiber with porous structure (0.1-1.0 μm) is obtained by diluted solvent spinning method and the mechanical properties is affected by pressure and temperature. Bending strength and shearing strength of the samples increase firstly and then decrease with the increase of molding temperature and pressure. While the molding temperature is 160℃and the pressure is 105MPa, the PLGA materials possess optimal mechanical properties, bending strength, shearing strength and bending modulus 187.3 MPa, 100.0 MPa and 2.5 GPa, respectively. The mild temperature molding PLGA materials are desired to play a grate role in non-bearing internal fixation devices.

研究结果表明：非晶多孔结构的PLGA纤维可通过溶液沉析纺丝的方法获得，其孔径为0.1~1.0μm；压制压力和压制温度对材料的力学性能影响较大，材料的抗弯强度、剪切强度和抗弯模量均随着温度和压力的增大而先增大后降低；在压制压力为105MPa，压制温度为160℃时，试样的力学性能比较理想，此时，其抗弯强度可达到187.3MPa，剪切强度达到100.1MPa，抗弯模量达到2.5GPa，可望作为非承重部位骨折愈合内固定材料。

Take example for tar as solvent, there are many coking plants with large scale in local region which can supply plenty of coal tar and anthracene oil. It is very convenient to us for cheaper tar and anthracene oil that there are 2 relative large coking plants near our factory with the capacity of 2000-2600 Yuan/t, which save transport costs for us.

如以焦油为溶剂，当地建有多个大型焦化厂，可从焦化厂获得充足的煤焦油和蒽油，非常方便的是在我厂厂址附近甚至是邻居就有2个较大的焦化厂，都可专为我们生产焦油和蒽油，而且价格；较便宜，在2000～2600元/吨之间，还不存在运输费用。

The strongpoint of level drill-hole drainage is that the holes can be placed on higher position,then can obtain larger gas drainage concentration and improve the efficiency.

水平钻孔抽放的优点是可选择高的钻孔位置，能获得更大的瓦斯抽放浓度，可提高抽放效率。

This paper endogens carbon tax and subsidy two variables, discussing how to decide the optimal level of carbon tax and subsidy. The results of the research are obtained as the following:(1) price and capital subsidy which one is priority depend on the productivity of renewable energy capital, if productivity is high enough, then should adopt capital subsidy policy;(2) price and capital subsidy indeed exist trade-off and non-independent relationship;(3) renewable energy regulation ratio has negative effect on carbon tax, however has positive effect on price subsidy;(4) green certificate price increase will result in decrease carbon tax and price subsidy, but increase capital subsidy;(5) if the authority loose the environmental target, then should impose high carbon tax which maintains the environmental quality, but have ambiguous effect on subsidy policy;(6) increasing stability of renewable energy, then increase price subsidy, however, under budget constraint should decrease capital subsidy;(7) analyzing Taiwan's three wind power energy with different price subsidy, which can improve the technology of wind power energy. In another word, it can raise the capacity of wind power energy and reach the goal of renewable energy.

本文考量政府预算限制下，探讨最适碳税税率与补贴率订定之问题，获得如下发现：(1)发电量补贴与资本补贴对促进再生能源发展效果不一样，决定於再生能源资本的生产力，如果资本生产力足够高，则发电量补贴效果较佳；反之，则应优先采行资本补贴措施；(2)发电量补贴与资本补贴的确存在抵换而非独立关系，亦即在政府预算限制下，为促进再生能源发展，应将种种补贴措施整合考量，以最低行政成本达到再生能源发展目标；(3)再生能源管制配比与碳税税率及资本补贴率呈反向变化关系；而与发电量补贴呈正向关系；(4)绿色权证交易制度具促进再生能源管制目标达到之奖励效果，因此，绿色权证价格提高可降低发电量补贴及碳税税率，降低碳税对经济不利冲击效果；(5)政府如果采行较宽松环境目标，宜提高碳税税率，避免环境品质进一步恶化，然而，对发电量或资本补贴之影响效果不确定；(6)再生能源发电效率愈高，则应提高再生能源发电补贴，在预算限制下，应降低再生能源资本补贴；(7)透过台湾三座风力机组的实证分析，采取差异性发电量补贴，将可诱导较高效率风力机组的投资行为，提高整体风力发电效率，达到再生能源发展之目标。

At present, the seal-type multi-stage vacuum pump is the most widely used access technology, a pump, it can be used as a separate low-vacuum equipment to the exhaust pump, it can be used as high-vacuum exhaust pump, when the first class, formed into a high demand for multi-stage pump.

目前，油封式多级泵是国内真空获得技术中应用最广的一种泵，它可单独用作低真空设备的排气用泵，也可用作高真空排气时的前级真空泵，组成成高要求的多级泵。

3 Through inquiring, inspecting, contrasting and analysing the information of soil basis classification, the Soil Taxonomy of Hubei province is established. The soils for Hubei province are divided into 10 soil orders, 16 suborders, 35 great groups and 54 subgroups. Compared with international soil systematics such as the American Soil

1.2 通过对数据库系统的查询检索，可快速地获得全省160多个典型剖面的景观特征、诊断指标和诊断属性等标准化的土壤信息数据，从而得到全省土壤系统分类的土系分类归属，可为全省土壤调查、土地资源评价与规划提供基础资料。

The required process specification can be found on the paste supplier's Web site and also is built into the software of some of the modern thermal profilers.

所需的工艺技术规范可到焊膏供应商的网站去查询，还可从包含有最新的热曲线分布图的软件中获得。

Age Q is passed " new material piece " yuan clever fairy tale " mature all sorts of demand of game player, rolled out gold equipment system and system of Yuan Lingbao shellfish successfully, can let game player win all corners of the country of equipment Chi surprise that exceeds cruel, and the pet of Yuan Lingbao shellfish that exceeds dazzle will be lifted " lovely storm , let a player win countless adored looks in the year period of contention of a hundred schools of thought; The marriage that suffers a player to expect fully the system can let a player meet unexpectedly in the network oneself true love, deduce reason of a paragraph of moving love of all corners of the country with sincerity; To satisfy the game requirement of new old user, the occurrence that 10 thousand gold spend poor system realized the fair sex of game, also escalated play can play degree, new old player can differ then to obtain equipment of the out of print in jewellery cabinet through exchanging a flower.

春秋Q传》新资料片&元灵童话&则充分考虑了游戏玩家的各种需求，成功推出了黄金装备系统和元灵宝贝系统，可以让游戏玩家获得超酷的装备叱诧江湖，而超炫的元灵宝贝宠物将掀起&可爱风暴&，让玩家在百家争鸣的春秋时代赢得无数崇拜的目光；备受玩家期待的结婚系统则可以让玩家在网络中邂逅自己的真爱，用真心演绎一段动人的江湖情缘；为了满足新老用户的游戏需求，万金花差系统的出现则实现了游戏的公平性，也增强了游戏的可玩度，新老玩家都可以通过换取花差继而获得珍宝阁里绝版装备。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。