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Also the performance of this modified electrode was compared with sodium molybdate modified platinum electrode. The cyclic voltammetry tests show that phosphomolybdic acid modified platinum electrode can increase the catalytic activity for methanol oxidation and it is almost the same as the mono-molybdate (Na2MoO4) modified Pt electrode does. This promote effect mainly comes from the transformation of different valency of molybdenum.
通过循环伏安和计时电流法研究了该修饰电极对甲醇氧化的电催化活性和抗中间产物的毒化作用,并比较了该修饰电极与其单酸盐(Na2MoO4)修饰铂电极的性能,测试结果表明:磷钼酸修饰铂电极能够提高对甲醇氧化反应的催化活性,基本上同其单酸盐Na2MoO4修饰铂电极的催化活性相当,并且这种促进作用主要是由Mo原子价态变化引起的。
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In particular, compared with conventional fluorophores, the long-lasting phosphorescence nanotubes have a broad and continuous excitaion spectrum and are photochemically stable, which can be used as fluorescent probes in biological staining and diagnostics.
对于纳米结构的长余辉材料来说,它们在纳米器件的标记和显示上具有较大的应用前景。特别是对于纳米管状结构的长余辉来说,它们具有宽的连续发射带和光化学稳定性,使得它们在生物着色和诊断上可以用做荧光探针。
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A stereo pair of SPOT-5 imagery acquired in across-track mode is selected and used. The empirical results have shown that the proposed geometric model, compared with the original model which considers the CCD line-scanner side watch angle as a constant, can improve the x-coordinate accuracy of image points, and can also raise the height accuracy of object space coordinates significantly while maintain the same level of the planimetric accuracy.
经对一SPOT-5异轨立体像对的试验表明,利用改进的几何模型和视CCD线阵列侧视角为常数的仿射变换模型对立体影像进行几何处理,前者较后者的像点x坐标精度有一定的改善,物点的高程精度有所提高,平面精度两者基本一致。
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As George Bernard Shaw puts it,"The maternal instinct leads a woman to prefer a tenth share in a first-rate man to the exclusive possession of a third-rate one." Despite the fact that humans are naturally polygynous, most industrial societies are monogamous because men tend to be more or less equal in their resources compared with their ancestors in medieval times.
正如George Bernard Shaw 所说,&母姓的直觉会导致一名女人宁愿选择要&一流男人&的十分之一,也不愿意要独自占有&三流男人&的全部&尽管说人类自然会选择一夫多妻,但是,大部分的工业化国家都是一夫一妻,因为那里的男性往往和自己在中世纪的祖先相比在资源方面要或多或少地更加平均化。
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Objective: To examine changes in gene expression profiling of peripheral blood mononuclear cells in type 2 diabetes patients with distal symmetric polyneuropathy as compared to type 2 diabetes patients without distal symmetric polyneuropathy and to healthy controls.
目的:利用基因芯片技术比较2型糖尿病伴有远端对称性多神经病变的患者、2型糖尿病不伴远端对称性多神经病变的患者以及正常个体外周血单个核细胞基因表达谱的差异。
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In the preformulation study, the ultraviolet spectrum and HPLC methods for the assay of α-asarone were established firstly and then the physicochemical properties, especially the octanol/water partition coefficient and the solubility in various solvent systems such as alcohol, PEG 400, IPM, octanol were examined. The prediction permeability was then compared with actual transdermal parameters obtained from the in-vitro diffusion study , and feasibility of drug transdermal absorption was then analyzed.
在制剂开发的处方前研究工作中,首先建立了α-细辛醚的紫外及HPLC分析方法,测定了药物的油水分配系数及在生理盐水、各系列浓度的乙醇、PEG400、肉豆蔻酸异丙酯、正辛醇等溶媒中溶解度;其次,确立了药物体外经皮渗透研究的方法,并考察溶媒及促渗剂(乙醇、丙二醇、肉豆蔻酸异丙酯等)对药物体外经皮渗透性能的影响,计算药物经皮渗透的各参数,根据药物的药物动力学参数,分析了药物经皮吸收的可行性。
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Following this logic, Nee (1989) argued that, as the political logic of redistribution is eroded by market mechanisms, returns to political capital declines and returns to human capital increase in the reform era, compared with the prereform era.
按照这个逻辑,倪认为,和前改革时期相比,当再分配的政治逻辑在改革时期被市场机制侵蚀时,对政治资本的依附下降,对人力资本的依附上升。
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Twenty-eight prototrophic revertants of the tryptophan auxotrophs were obtained through spotaneous back mutation from colonies grown on synthetic medium plates or nodules of plants. Most of the revertants have resumed the nodulation abilities and enhanced nitrogen fixation activities as evidenced by darker green color, higher dry weight and more nitrogen contents in shoot than those of the wild type strain 8-1-4A did in pot experiments. However, noodulation abilities decreased to some extent and no significant differences were found in the mass of nodules compared with the parent strain.
通过自发回复突变,从培养平板和根瘤中分离到28个色氨酸原养回复突变型菌株,对其中25株进行植物盆栽试验证明其中24株菌的结瘤功能得到了恢复,而且固氮酶活性普遍比出发菌有所提高,其中41%达到极显著水平,18%达到显著水平,植株地上部分干重及含氮量也有不同程度的提高,唯有根瘤数比出发菌有所降低,其中23%降低达极显著水平,11%降低达显著水平。
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Several studies indicate a worse outcome in patients who received fasciotomy compared with those who did not.7, 11 It is felt to be indicated only in a potentially viable extremity that is pulseless due to elevated intracompartmental pressure.18 Fasciotomy was felt to be useful in preventing cases of Volkman's ischemic contracture after the Tangshan earthquake.3 In Israel, fasciotomy was reserved as a treatment of last resort in cases refractory to the use of intravenous mannitol.7
几项研究表明,采用筋膜切开术的患者后果比未手术者更严重。这说明仅在可能的极端情况下筋膜间区压力升高才会导致无脉动现象。在唐山地震后,筋膜切开术对预防前臂缺血性肌挛缩有效。在以色列,筋膜切开术被做为难以采用静脉输注甘露醇病人最后的治疗方法。
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In the last three months of 2008, for example, as the world economy reeled, public consumption grew by over 50%, compared with the previous year.
例如,在2008年的最后一季度,在世界经济衰退时,印度的公共消费比前一年上涨50%以上。
- 推荐网络例句
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The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.
其基本内涵可概括为:以确有疗效的中药复方为研究对象,以现代科学技术和传统中医药理论为技术支持,以该复方所治病证的药效响应为评价标准,以优化重组疗效更优的新复方为研究目的。
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Ever since our world has been a world, native forests have been indiscriminately exploited by man.
自从我们的世界一直是世界原生森林被任意剥削人。
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I don't… don't know. He's unconscious.
我不……我不知道他休克了。