可循环的

Preparation of the cathode includes:shaping under the press of 40Mpa, sintering at 550℃for 1 hour and at 900℃for 8 hours and threading with molybdenum bar; Considering the literatures we choose CaCl2 as salt for preparation titanium. Pretreatment of salt is for 1 hour at 100℃and for 2 hours at 300℃. Partial pressure of oxygen which need lower than 5.11×10-7Pa to reduct titanium oxides and hygroscopic property of salt need a sealed equipment to electrolyse. And finally successfully designed a satisfied one and the results show that the equipment can be satisfied the requirment of the experiment. Flow of the inert gas is 1.5L/min, the voltage is 2.8 V, temperature is 850℃and time is 2 hours during pre-electrolysis. Flow of the inert gas is 0.2L/min, the voltage is 3.1 V, temperature is 900℃and time changes with the mass of TiO2 during electrolysis, namely the greater need the longer time; To eliminate influence of salt and other impurities, the products need to wash with distilled water and dilute chlorhydric acid , then wash with dilute hydrochloric acid under supersonic wave assistant. Finally, electrometical properties of the electrolysis of TiO2 is researched by cyclic voltammetry and chronoamperometry, and results show that there are two main reodox steps, namely from TiO2 to TiO and from TiO to Ti.

阴极制备主要包括40MPa压力下模压成型、两段式烧结(1小时内升至550℃保温1小时，再1小时升温至900℃保温8小时)及烧结后TiO2块打孔用钼棒串接三个主要环节；实验中选用CaCl2作为电解熔盐，并对其进行预处理(100℃，保温1小时； 300℃，保温2小时)；经热力学计算，还原钛氧化物的氧分压至少要低于5.11×10-7Pa，结合电解过程中所用熔盐CaCl2有极强的吸水性的特点，电解装置应有较高的密封性，自行设计了一套密封性可靠的电解装置，便于实验过程中熔盐预处理和氧分压的控制；通过干燥处理预电解过程中Ar流量大约为1.5L/min、电压为2.8 V、温度为850℃、时间为2小时，电解过程中Ar流量大约为0.2L/min、电压为3.1V、温度为900℃，实验结果表明电解时间与TiO2质量密切相关，质量越大需要电解的时间越长；通过自来水冲洗—稀盐酸浸泡、洗涤—在超声波辅助作用下稀盐酸洗涤，可减少熔盐及其它杂质对电解产物检测结果的影响；最后，通过循环伏安法、计时电流法对电解机理的研究，确定电解还原TiO2制备金属钛主要经历了TiO2-TiO-Ti的过程。

The results show that the sample possesses two-dimensional (2-D) hexagonally ordered mesoporous structure, and the pore volume of the sample is 1.88 cm3/g, the specific surface area is 1 394 m2/g; it possesses mesoporous structure and narrow pore size distribution, the average pore size is 3.4 nm. The supercapacitor has good electrochemical performance, the specific capacitance is 95 F/g at a charge/discharge current density of 500 mA/g after 10 000 cycles, and specific capacitance fluctuates between -4% and 4%.

结果表明：样品孔结构呈二维六角有序分布；该样品的孔体积为1.88 cm3/g，比表面积为1 394 m2/g，具有典型的中孔结构和集中的中孔分布，它的最可几孔径为3.4 nm；制备的中孔炭作电极材料组装的超级电容器有良好的电化学性能，在500 mA/g的充放电电流密度下，循环10 000次的平均比电容高达95 F/g，比容量波动范围仅为-4%~4%。

At the beginning of 1990"s, backstepping was developed by Kokotovic and his copartners, it is a kind of circulative nonlinear design method that uses systematic way to construct feedback method and simultaneous correlative control Lyapunov function and so more and more scholars pay attention to it. Because it has very good flexibility, people can use "good" nonlinear item through introducing nonlinear damping to control "bad nonlinear item. Now backstepping design method is one of the most effective methods to settle control problems in nonlinear system with uncertainty.

20世纪90年代初，出现了以Kokotovic及其合作者发展起来的backstepping设计方法，它是一种运用系统化的方式同时构造反馈控制律和相关联的控制李雅普诺夫函数的循环非线性设计方法，近年来引来了越来越多的学者的高度重视，它具有很好的设计柔韧性，设计者可利用&好的&非线性项，通过增加非线性阻尼来控制&坏的&非线性项，是目前解决不确定非线性系统控制问题的最有效途径之一。

Personally, even with the May 27th pole shift date come and gone, we are continuing preparations - we have added to our freeze dried food and seed stores and we now have multiple systems to collect water, store water, purify water and heat water and are currently working on the bicycle powered air infiltration system to our shelter as well as have added two 4 x 10 solar panels to the shelter roof to produce water, have purchased two 120 photovotaic panels to make electricity with along with a charge controller and deep cycle RV batteries, and now have a bicycle generator ( a really nice unit found at www.windstreampower.com ) to produce electricity should there be no sun along with two 12VDC to 120V invertors for running small appliances and even the washing machine.

就个人而言，即使2003年5月27日---极移的日期来了又溜走，我们还是在继续做准备----我们已经增加了冷冻干食品和种子的储存量，并且有了收集，存储，净化和加热水的复合系统设备。我们现在正致力于为避难所建造由自行车供电的空气渗透系统，还在避难所的屋顶上加入了2个4x10的太阳控电板，以便制造出水源。我们也购买了两个120光生电池板和两个充电控制器，以及可多次循环使用的 RV 电池，用于供电。现在我们已有了自行车发电机（在 www.windstreampower.com 上发现的一个很不错的东西），没有阳光的时候用于发电。

Cartridge:, the print cartridge life cycle of two or more generally, the chemical shelf-life may also be at more than one year;, because raw materials, recycling, and cartridge production in line with the international environmental protection standards also reached the physical properties of ISO standards;, we test the penetration of toner capacity and firmness to ensure that no edges when printing machine, non-proliferation, water does not fade, and with permanent;, we in the production of selenium drum, press the production of technical standards for irrigation powder, test print number of sheets to ensure that the cartridges produced by the best of prices;, the plate making capacity toner cartridges, we have to do rigorous testing, especially the toner to the paper sulfate infiltration capacity, to ensure that cartridges can meet the special needs of the industries;, cartridge in the print version of the black and white version, ghost version, gray version, self-Edition, Standard Edition, such as a number of parameters, we ensure that the production Photo print cartridge outenough bright, clear enough.

硒鼓：①、硒鼓的打印寿命一般在两个周期以上，其化学保质期也可在一年以上；②、由于原材料的再循环性，硒鼓的生产符合国际性的环保标准，其各项物理性能也达到ISO标准；③、我们检验碳粉的渗透能力和牢固度，保证在打印图文时无毛边、不扩散、遇水不退色，且具有永久性；④、我们在生产硒鼓时，按生产技术标准灌粉，检验打印张数，保证生产出来的硒鼓具有最好的性比价；⑤、硒鼓的制版能力，我们做到严格检验，特别是碳粉对硫酸纸的渗透能力，保证硒鼓能满足于特殊行业的需求；⑥、硒鼓在打印时的黑版、白版、鬼影版、灰版、自检版、标准版等多项参数，我们保证所生产出来硒鼓的打印图文够黑、够亮、够清晰。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。