四代的

In this paper, through a series of experiments, two series of quaternary-ammounium Gemini surfactants were synthesized, namely the pair alkylene double quaternary ammonium salt surfactant m-s-m·2Br and the pair the alkylene double quaternary ammonium salt surfactant -s-·2Br. We has carried on the attribute with the infrared spectrum to its structure, and to affected the factor which the synthesis pair the alkylene double quaternary ammonium salt surfactant responded to carry on the discussion. We has discovered the synthesis pair the ethylene double quaternary ammonium salt surfactant m-2-m·2Br optimum condition: The bromo alkane and a tetramethyl ethylene diamine mole of ratio is 3.0: 1.0, makes the solvent by the ethyl alcohol, 80℃ under responds for 48 hours in the backflow temperature; Synthesis pair alkylene double quaternary ammonium salt surfactant 12-S-12 ·2Br optimum condition: 12 tertiary amine and 1, 3- propylene dibromide (1, 4- two bromines butane) a mole of ratio is 2.2: 1.0, makes the solvent by the ethyl alcohol, responds for 48 hours in the constant temperature 80 ℃ under backflow.

本文通过一系列的实验，合成了两个系列的Gemini型表面活性剂，即双烷撑双季铵盐表面活性剂m-s-m·2Br和双烷撑双季铵盐表面活性剂-s-·2Br，用红外光谱对其结构进行了表征，并且对影响合成双烷撑双季铵盐表面活性剂反应的因素进行了讨论，找出了合成双乙撑双季铵盐表面活性剂m-2-m·2Br的最佳条件：溴代烷与四甲基乙二胺的摩尔比为3.0：1.0，以乙醇作溶剂，在回流温度80℃下反应48小时；合成双烷撑双季铵盐表面活性剂12-s-12·2Br的最佳条件：十二叔胺与1，3-二溴丙烷(1，4-二溴丁烷)摩尔比为2.2：1.0，以乙醇作溶剂，在恒温80℃下回流反应48小时。

In chapter one,the backgrounds and current situation of operator theory in Banach space are introduced and the preliminaries of Banach space are given.In chapter two,we study the existence and uniqueness of fixed point for decreasing strict-set-contraction operator in product space.Under the weak continuous condition,we obtain the existence and uniqueness of fixed point for decreasing operator and we give an application of these results; In chapter three,we get several positive fixed point theorems of decreasing operator and the existence and uniqueness theorems of positive fixed point for operator C=A+B,C=D-A in real Banach space where the order is decided by a normal cone; In chapter four,we obtained some existence and uniqueness theorems of fixed point for some mixed monotone operators in semi-ordered Banach space.

在第一章中，主要介绍了半序Banach空间非线性算子的研究历史背景、现状以及半序Banach空间中的预备知识；在第二章中，我们利用半序方法研究了Banach乘积空间中严格集压缩减算子不动点存在唯一性问题，在弱连续的条件下，得到了不动点的存在唯一性和迭代收敛性，同时，给出了它们的一些应用；在第三章中，我们建立了拟弱连续减算子的正不动点定理，并证明了算子C=A+B，C=D-A的正不动点存在唯一性定理；在第四章中，我们得到了半序Banach空间中混合单调算子的不动点存在性及唯一性定理。

So, it gets many attention of chemists to develop the methods for this kind of compounds.

这种新的仿生合成方法为从羧酸和卤代物为起始原料制备四氢异喹啉类化合物提供了新的方法，为新药的制备提供了新的思路。

It is considered that there are four contributions to the nonspecular scattering field from each interface, the scattered power is not simply estimated as the sum of the nonspecular scattering from each interface, it is treated by dynamical diffraction method through multiplying a transmission factor before adding the scattering amplitude, the transmission factor is calculated by the recursive method.

每个界面考虑有四支散射波的贡献，计算总的散射强度时，没有简单的将各界面散射振幅相干叠加，而是用动力学处理方法将每只散射波乘上一个出射因子再叠加，出射因子是由动力学中的迭代方法计算的。

Mainly consists of four parts: the Department of Industrial Products: Delta Company is mainly engaged in the inverter, PLC, HITECH Man-Machine Interface, or HIWIN Luo and Yintai PMI's precision guideways, ball screws, as well as industrial control components agency work, the current company is Delta and Law Area Agent or distributors Products total distribution areas, inverter sales in more than in 6000, in addition to Deputy Cosme Liuzhou, Toshiba, Omron, Yaskawa, Mitsubishi , P + F, Schneider and other company's products, degrees to be used for textile machinery, printing and dyeing, packaging, beverage, pharmaceutical, refrigeration, elevators and other industries.

主要由四部分组成：工控产品部：主要从事台达公司的变频器、PLC、HITECH人机界面、罗升HIWIN及银泰PMI公司的精密导轨、滚珠丝杠以及工控元器件的代理工作，目前公司是台达及罗升产品华地区代理经销商地区总经销），变频器年销量在6000台以上，此外还代理科姆龙、东芝、欧姆龙、安川、三菱、P+F、施耐德等公司的产品，度要用于纺机、印染、包装、饮料、制药、制冷、电梯等行业。

Internet is regarded as "the fourth spreading media" after newspaper、 broadcast and TV, The network is affecting each aspect in the area of leaming、 working、 amusement and life of people especially teenagers at a surprising speed so that modern middle school students are referred to as e-era youths.

Internet被视为继报纸、广播、电视之后的&第四传播媒体&，网络正以超乎想象的速度渗透到人们、尤其是青少年的学习、工作、娱乐乃至生活的方方面面，以致于有人把现代中学生称为e代青年。

Chang-chuan gongbei Kong Xuanhua County, 15 years since the Emperor Guangxu (1889 AD) Ma Yuan Zhang brothers in the two horse graves of the Dragon on the construction of the Eight Diagrams House Tomb of the beginning of large-scale construction began in 2004 (Year 1915) several generations The expansion in succession, gradually expand the scale and form of the ancient solemn, solemn spectacle of the ancient buildings.

张家川县宣化岗拱北自光绪十五年（公元1889年）马元章兄弟二人在马化龙的坟墓上修建八卦墓庐开始，大规模的修建始于民国四年（公元1915年）经过几代人的相继扩建，规模逐渐扩大，形成了古朴庄严，肃穆壮观的古建筑群。

Because calcining under high temperature is the key whenimplementing " three-high rates" composition,so we must use advanced technical equipments to ensure improvement of rates. Using this way,we can enhance ISO strength of clinker.

高温煅烧是实施&三高&配料方案的关键所在，因此，必须采用先进的工艺设备(比如第三代空气梁篦冷机和先进的四通道煤粉燃烧器)来确保煅烧温度的提高，这样才能有效的提高熟料ISO强度。

Living Museum by Carl morning billion Valley City real estate and real estate to develop, on behalf of the second-generation products will be wide Townhouse extended to more than 8.4 meters, 7.2 meters deep into the light so that the main function room can be the most adequate sunlight, stairways, room is also the realization of a direct lighting, ultra-wide have also brought large private garden.

卡尔生活馆上午亿谷市房地产和房地产开发，代表的第二代产品将被广泛别墅扩大到超过八点四米， 7.2米深的光线，使房间的主要功能可以是最充分的阳光，楼梯，房间也是实现直接照明，超广角也带来大量的私人花园。

The name Blenheim derives from a decisive battle that took place on the 13th August 1704 on the north bank of the river Danube, near a small village called Blindheim or Blenheim, where the French leader, Marshall Tallard, had fixed his lines.Here John Churchill, the first Duke of Marlborough, won a great allied victory over the forces of Louis XIV, thus saving Europe from French domination.

布伦海姆宫是对第一代马尔波罗公爵约翰·丘吉尔功绩的表彰。17048月13日，约翰率领英国、奥匈、荷兰等军队在多瑙河北岸小镇布伦海姆决定性地击败了路易十四的法国大军，从而粉碎了其争霸欧洲的梦想，为了表彰约翰的功绩，英国安妮女王为他在牛津郡建立了这座布伦海姆宫，并封其为马尔波罗公爵。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。