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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。

The invention relates to a method for the extraction of keratin from dead animal skins, characterised in the treatment of dead animal skins with a substance of general formula, or at least one corresponding alkali metal, earth alkali metal, ammonium, or phosphonium salt, the variables having the following definitions: R, R = together or independently, H, C6-C14 aryl, C1-C12 alkyl, unsubstituted or substituted with one or several SH or OH groups, R, R = together or independently, H, C6-C14 aryl, C1-C12 alkyl, unsubstituted or substituted with one or several SH or OH groups, whereby at least one of R or R is not H, or R and R are not H and two vicinal groups of R to R together may be C3-C10 alkylene, R = H, C1-C12 alkyl, H-C=O or C1-C4-Alkyl-C=O, X, X, X and X = OH, SH or NHR, whereby where Rto R contains at least one sulphur atom, at least one of X to X = SH and where R to R contains no sulphur atom, at least two of X to X= SH.

本发明涉及一种从死亡动物原皮中除去角质的方法，其特征在于用通式I的物质或至少一种对应的碱金属盐、碱土金属盐、铵盐或∴盐处理死亡动物原皮，式I中各变量定义如下：R 1 和R 4 相同或不同且选自氢、C 6 -C 14 芳基和C 1 -C 12 烷基，其未被取代或被一个或多个SH或OH基团取代；R 2 和R 3 相同或不同且选自氢、C 6 -C 14 芳基和C 1 -C 12 烷基，其未被取代或被一个或多个SH或OH基团取代，其中至少一个基团R 2 或R 3 不为氢，或R 1 和R 4 不为氢，且两个相邻基团R 1 -R 4 可以一起为C 3 -C 10 亚烷基；R 5 选自氢、C 1 -C 12 烷基、H-C＝O或C 1 -C 4 烷基-C＝O；X 1 、X 2 、X 3 和X 4 选自OH、SH和NHR 5 ，其中若R 1 -R 4 含有至少一个硫原子，则至少一个基团X 1 -X 4 为SH，以及若R 1 -R 4 不含硫原子，则至少两个基团X 1 -X 4 为SH。

He has also won an MVP Award, two All Star game MVPs, and two scoring titles.

他还获得了一届常规赛最有价值球员奖，两届全明星赛最有价值球员奖，以及两届得分王。

Each line is divided by a caesura into two halves; and there are two stresses in each half, falling on the alliterative consonants or vowels.

每行诗以中间停顿分作两个半行，各有两个重读词，或为辅音头韵，或为元音头韵。

The leaf modules of different age tillers of grey green and yellow green ecotypes had the same regulation of allometry and biomass accumulation at the reproductive stage in the Songnen Plain. All quantity indices, such as biomass, length and width of leaf and regulation of biomass accumulation, were different between the two habitats of the same ecotype and between the two ecotypes at the same habitat. The results showed both ecotypes had adapted to their corresponding habitat and obviously had ecological plasticity.

在松嫩平原的繁殖期，灰绿型和黄绿型羊草不同龄级分蘖株叶构件具有相同的异速生长和生物量积累规律。2个生态型羊草叶构件的生物量、叶长、叶宽、生长和生物量积累规律等在相同生态型不同生境之间，相同生境不同生态型之间，以及不同龄级分蘖株之间的各个数量指标均有一些差异，但变化幅度不大，是2个生态型对其所在生境产生的相应适应性反应，具有明显的生态可塑性。

This invention relates to a structuring method for a multi-allotter front end system of a cluster server characterizing in including the following steps: setting up more than two front end allotters matched with two net cards, a cluster server front end system of a collecting tray, the data input end net cards of the front allotter are cascade via the collecting tray, the data output end net cards of all front allotters are connected with the switching device of the cluster server back end system, the data input end net cards are matched with a same virtual IP, all input data packets are transmitted to all front end distributes in broadcast way, every front server computes, the input data packet IP addresses or TCP port number in hash to decide if said data packet is processed.

本发明涉及网络服务器技术领域，尤其是一种集群服务器的多分配器前端系统构成方法，其特征在于：包括以下步骤，建立包括两台及以上的配置了两块网卡的前端分配器、一台集线器的集群服务器前端系统，所有前端分配器的数据输入端网卡通过集线器并行集联，所有前端分配器的数据输出端网卡与集群服务器后端系统的交换机相连；所有前端分配器的数据输入端网卡配置一个相同的虚拟IP；通过集线器将输入数据包以广播方式传输到所有前端分配器；各前端分配器对输入数据包IP地址或TCP端口号进行散列计算，决定是否处理该数据包。

A few days, I became aware of a small potted plant is not a good support, and on the balcony after two days, pot Several have two oval-shaped leaves of the seedlings to break through the soil, so it is strange to think: how there are so many so quickly Alocasia does the Miller?

几天下来，我才知道原来小小的一盆花并不好养，在阳台上放了两天，花盆里就有几株撑着两片椭圆形叶子的小苗冲破泥土，我奇怪地想：怎么这么快就有这么多观音莲的苗呢？

The heading determination model based on two total positioning systemis used to calibrate the ship alongshore heading together with the GPS attitude determination equipment, time synchronization system via receiving GPS second pulse to synchronize the two kinds of data is also designed.

结合GPS姿态测量设备，通过采用数据插值融合技术，进行舰船组合航向测量。为了提高组合航向测量的精度，设计了通过接收GPS秒脉冲对两种航向测量数据进行时间同步的系统。

Third, match two big alphabetic strings accurately, sign the same parts and different parts of the two.

通过上述三步，可以精确匹配两个巨大的字符串，标识出两者的相同部分和不同部分。

He owned a luxurious hotel on the Riviera . His father and two grandfathers had sold wine, jewels and silk, respectively. At thirty he married an English girl, daughter of Jerome Dunn, the alpinist, and granddaughter of two Dorset parsons, experts in obscure subjects — paleopedology and Aeolian harps, respectively.

我的父亲在拉文纳拥有一家豪华的饭店，他的父亲、祖父和曾祖父分别做过酒、珠宝和丝绸生意。30岁的时候他娶了一个英国姑娘，登山家杰罗姆·登的女儿，两位多赛特牧师的孙女，他俩分别精通极冷僻的古土壤学和风奏琴。

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％。