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In the non_dimensional time domain,the generalized quadratic performance criterion of error state is transited into the optimal problem of structural parameters,thus to get an optimal parameter system_optimal damping control system with big margin for stability,little number for oscillation,small overshoot and small setting time.

1引言利用优化系统的结构参数，使之输出的动态性能达到最佳程度，传统方法都是在时域或频域中进行，典型的有&ITAE&准则［1］及电子最佳调节理论［2］，基于无量纲时域中的误差状态二次型性能指标的优化方法，是一手种新的最佳参数化方法［3］，可使系统对于输入作用的阻

In this paper, shearing machine and hammer grinder were combined to pulverize the waste boards, the metal and nonmetal on the PCBs and PWBs can be liberated availably, Then a roll-type corona-electrostatic high-voltage separator are applied to separate the metal and nonmetal, at the same time, A electrostatic separators/sizers is used to separate the mixed metals.

因此，本文采用剪切式旋转破碎机和冲击式旋转磨碎机进行两级破碎，达到金属-非金属充分解离的程度，然后应用辊式电晕-静电复合电场高压电选机，对已破碎的废弃电路板进行金属颗粒与非金属颗粒分选，同时对金属之间的分选进行理论分析和实验研究。

In this way, the simulation of actualseepage fields in complicated site and construction conditions were made in order tohave a deep view of the general rules of seepages in earth dam, and illuminate laws ofmain physical quantities.

通过土坝渗流场的三维非稳定分析，以期达到对土坝渗流场实际复杂情况的模拟，比较理想地反映不同时段的土坝渗流场中等势线、流速矢量、无压渗流场自由面以及流量等渗流要素在不同条件下的变化规律，从而在一定程度上弥补过去对土坝渗流场研究的不足。

Mixing paint into the mixer when the first increase in water mixture 2 minutes, stirring 5~5min fully with anti-adhesive and steel, jet can achieve consistency level.

搅拌时先将涂料倒入混合机加水水拌合2min后，再加胶粘剂及钢防充分搅拌5～5min，使稠度达到可喷程度。

Oscar Wilde's great skill in using epigrams and para-dozes and repartees and in creating coincidences and absurd situations finds its fullest manifestaion in his farce The Importance of Being Earnest; so that the play, while highly amusing and enjoyable, sounds ludicrous and nonsensical.

在《诚实的重要性》这一剧作中，王尔德使用警句和似非而是的论断，巧妙的对答，以及制造巧合与荒诞情境的技巧达到了完美的程度，使这出戏在上演时观众笑声不绝于耳，具有很高的娱乐性。

The results of its intrinsic fluorescence spectroscopy and fluorescence phase diagram showed that when the guanidine hydrochloride concentration in denaturation solution was about 1.0 mol/L, there existed a partially folded intermediate of Bacillus amyloliquefaciens a-amylase during its unfolding procedure, which followed a three-state model; the result of its fluorescence probe showed that when the guanidine hydrochloride concentration in denaturation solution was about 1.0 mol/L, there existed some stable hydrophobic regions, which could interact with a hydrophobic reagent 8-anilino-1-naphthalene sulfonic acid, in the partially folded intermediate of Bacillus amyloliquefaciens a-amylase; and the results of fluorescence quenching using acrylamide and potassium iodide as quenchers showed the distribution of Trp residues in Bacillus amyloliquefaciens a-amylase in different denaturation solution, with the maximum number (8) of tryptophan residues in a partially folded intermediate Bacillus amyloliquefaciens a-amylase molecule could be quenched by potassium iodide; and the results of their protein electrophoresis and SEC showed that no aggregate or aggregate precipitation of Bacillus amyloliquefaciens a-amylase formed during the whole unfolding procedure of Bacillus amyloliquefaciens a-amylase induced by guanidine hydrochloride.

内源荧光光谱和荧光相图结果表明，当变性液中盐酸胍浓度约为1.0 mol/L时，芽孢杆菌a-淀粉酶的去折叠过程中出现一个部分折叠中间体，其去折叠过程符合&三态模型&；荧光探针结果表明，在溶液中盐酸胍浓度约为1.0 mol/L时，中间态芽孢杆菌a-淀粉酶分子中存在着能够与探针分子1-苯胺基-8-萘磺酸结合的稳定的疏水区域；荧光猝灭研究给出了不同程度变性的淀粉液化芽孢杆菌a-淀粉酶中的Trp的分布情况，结果表明中间态芽孢杆菌a-淀粉酶分子中能够被碘化钾猝灭的位于分子表面的色氨酸残基数目达到最大的8个；蛋白电泳和体积排阻色谱结果表明，在盐酸胍诱导的芽孢杆菌a-淀粉酶分子的整个去折叠过程中，不会以共价键或非共价键形式形成芽孢杆菌a-淀粉酶分子之间的集聚体或集聚体沉淀。

It might be applicable to the clinical treatment of port-wine stains.

ala的局部真皮内注射比全身给药用药量小，但能达到同样程度ppix的积聚，有望成为葡萄酒色斑光动力学治疗的新光敏剂。

Intradermal injection of 5-ALA is a safer administration route that could achieve equivalent of PpIX accumulation. It might be applicable to the clinical treatment of port-wine stains.

ALA的局部真皮内注射比全身给药用药量小，但能达到同样程度PpIX的积聚，有望成为葡萄酒色斑光动力学治疗的新光敏剂。

ConclusionsIntradermal injection of 5-ALA is a safer administration route that could achieve equivalent of PpIX accumulation. It might be applicable to the clinical treatment of port-wine stains.

ALA的局部真皮内注射比全身给药用药量小，但能达到同样程度PpIX的积聚，有望成为葡萄酒色斑光动力学治疗的新光敏剂。

It also shows that the degree of employees'engaging in influence activity can depend on the expectation of the distribution of"quasi rents"created by strategic change.

模型表明：影响活动对战略转换会产生有害的障碍，而且影响成本与企业前景正相关；惯性的一个来源是组织不愿意承担变化的影响成本；员工施加影响活动所达到的程度依赖于员工对战略转换所造成的&准租&分配的预期。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！