后者的

The problem of PI controller design for the multi-input and multi-output system is transformed to that of static output feedback controller design via the new state variable. As to the problem of the static output feedback, a new LMI-based sufficient condition of the controller is presented in this thesis. We can gain the multivariable PI controllers just solving one LMI inequality. The numerical example is provided to illustrate the proposed design approach. 3.The H_∞ robust control is able to solve the multivariable problem, also the control problem characteristic of the modeling error, parameters uncertainties and unknown perturbation, Its application research in the power electronics is beginning now. Considering the characteristics of the PWM DC-DC converters, a multivariable PI controllers which is based on H_∞ Performance Index is designed.

通过构造新的状态变量，可以将多输入多输出系统的PI控制器设计问题转化为静态输出反馈控制问题，利用后者的成熟理论来设计控制器；本文在问题转化后采用更为简便的算法，只需通过求解一个LMI不等式，就能求取基于H_∞性能指标的多变量PI控制器参数，实例验证了算法的有效性。3.H_∞鲁棒控制具有处理多变量问题的能力，可解决具有建模误差、参数不确定和干扰未知系统的控制问题；它在电力电子学中的应用研究刚刚开始。

Based on the rules and the facts that covariance matrix is positive definite symmetric matrix, new split-and-merge methods are proposed and the improvements for the SMEM algorithm are designed.

最后在Ueda等人的利用分离合并过程来改善EM算法的思想启发下，具体从用于高斯混合体模型的EM算法出发，得到了一类新的分离合并EM算法，同Ueda等的比较，后者的分离合并方法是一种启发性的过程，前者则是在一定理论指导下的推出的。

Wagnerian music, though confessedly grand in its way, was a bit too heavy for Bloom and hard to follow at the first go-off but the music of Mercadante's Huguenots , Meyerbeer's Seven Last Words on the Cross and Mozart's Twelfth Mass he simply revelled in, the Gloria in that being, to his mind, the acme of first class music as such, literally knocking everything else into a cocked hat.

瓦格纳尽管自有其众所公认的雄伟气魄，然而对布卢姆来说，却有点太沉闷了，一开始就难以理解。但是他简直迷上了梅尔卡丹特的《胡格诺派教徒》、梅那贝尔的《最后的七句话》和莫扎特的《第十二弥撒曲》。他认为后者的《荣耀颂》乃是第一流音乐中的登峰造极之作，真正能使其他一切音乐黯然失色。

The crystallization temperature and pressure of clinopyroxene phenocrysts from the ankaramite and basalt were estimated on the basis of the clinopyroxene-melt equilibrium principle: 1345～1366℃ and 1.75～2.05Gpa for ankaramite, with average geothermal gradient of 20-24℃/km, suggesting anomalous heat or geothermal gradient in this region may be one of the key reasons to produce the porphyry copper deposits in the region. In contrast, those in the basalts fomed under a relatively low crystallization temperature (1129～1191℃), and the pressure (1.19～1.60Gpa) and depth (39～53km), suggesting that the basalt formed under a condition of lower temperature and pressure.

根据单斜辉石-熔体平衡原理计算了富辉橄玄岩和玄武岩中斑晶相辉石形成的温度和压力，前者变化范围主要集中在1345～1366℃和1.75～2.05GPa，其深度相当于58－67km，平均的地温梯度大约20～24℃/km，说明该区具有异常的热或地温梯度，这可能是导致本区斑岩铜矿形成的主要原因之一；后者的温度和压力都相对较低，分别为1129～1191℃和1.19～1.60Gpa，而相应的深度为39～53km，暗示着玄武岩是在相对低温低压的环境中形成的演化岩浆。

The effect of the latter was that the resulting codeposit will contain only a few PTFE particles at lower surfactant concentration, and that it will contain a lot of bubblles at higher surfactant concentration, and that a flat composite codeposit formed with densely arranged micro-cells at suitable surfactant concentration.

后者的影响是：在表面活性剂浓度过低时所沉积的镀层中只含很少量的PTFE粒子，在其浓度过高时所沉积的镀层中会夹杂许多气泡，只有在其浓度合适时才能得到平整的、由致密排布的微胞组成的复合镀层。

LIU Hui's Cyclotomic Method is one of the greatest achievements in the history of mathematics in China,even in the world,in which the special approach to understand the infinity and the method to solve it are presented.

有的著作认为在极限公式limx→0sinxx=1的证明中，要用到圆的面积公式S=21Lr，而对后者的证明中必须要用到重要极限limx→0sinxx=1，从而犯了循环论证的错误。魏晋刘徽的&割圆术&是对无限问题的独特认识和致用的处理方式，是为证明圆面积公式而设计出来的一种方法。

Transcendental phenomenology, through epoche, reaches pure consciousness which is independent of natrural world and yet constitutes it. But there is such a question in this thinking that it is still hiddenly influenced by natrural attitude which Husserl strongly wants to overcome.

先验现象学的特点是，通过&悬搁&的彻底化，剥离出完全独立于自然世界、又构成着后者的纯粹意识，实现哲学的绝对的自身奠基，并释放出《逻辑研究》未达到的自身构成的现象世界。

Besides, it is consistent with the asymmetrical gene flow from monogynous to polygynous populations through males in monogyne..Therefore, the cuticular chemicals can not be cluster well between monogynous and polygynous ants, and the variance of chemicals of the latter is higher than those of the former.

由於这些化学物质的合成受到遗传影响，这种现象显示两个涵义，第一个是单蚁后社会型的工蚁对其他蚁后有强烈的排他性而造成的选汰压力导致其遗传结构上较为均质，另一个涵义显示单蚁后社会型的遗传组成可藉由雄蚁将其基因带入多蚁后社会型的遗传组成，但反之则不然；因此二者之间无法分群，且后者的遗传变异较前者为大。

A new picorna-like virus was isolated from dead Evtropis oblique larvae deceased from NPV infection. Electron microscopic observations of purified virions were non-enveloped isometric particles with diameter of 26nm. The virions contain two capsid proteins: 31.5kDa and 28.8kDa, the amount of later is 2.5 times more than that of the former. Analysis of 3′terminal sequence of EoPV clone identified that it can encode RdRp and has eight conserved motifs. Homology analysis shows that it is closely related to Perina nuda picorna-like virus.

从核型多角体病毒感染致死的茶尺蠖幼虫尸体中分离到一株微小RNA病毒透射电镜观察纯化的病毒粒子为无囊膜、无表面特征、直径约26nm的球状颗粒。16%的SDS-PAGE显示它有两个分子量为31.5 kDa和28.8 kDa的衣壳蛋白，后者的含量是前者的2.5倍。3′端克隆序列分析表明EoPV基因组3′有poly尾，编码RNA聚合酶，含有微小RNA病毒RNA聚合酶的八个保守基序，同源性分析表明它与榕透翅毒蛾微小RNA病毒亲缘关系最近。

The problem of the former is that China's contemporary art cannot achieve a real height in regard of cultural sense and spiritual expressions if it has not experienced the seedtime of modernism; while the latter's is that the interpretation of Vulgar Sociologism will overrun if the attention to the superficial reality is overemphasized-and that the so-called attention to the reality is nothing but the continuous reduplication of the symbols of reality.

前者的问题是，如果没有经历过现代主义的发展阶段，中国当代艺术不可能在文化意义、精神表达上具有真正的高度；后者的问题是，如果片面强调对表层现实的关注，则必然在庸俗社会学的阐释面前就范，而所谓的现实关注也无非是现实符号的不断复制而已。

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。