Mol l , artemisinin can be reduced via the hemin - catalysis and its original cathodic peak at - 1 . 08v completely disappeared . the cathodic overpotential of artemisinin is decreased ca . 600mv . this process is verified by the fact that complex edta - fe can also promote the artemisinin reduction with decreasing the cathodic overpotential of artemisinin for 590mv . these results show that the reduction of artemisinin at the glassy carbon electrode is a catalytic process with the aids of hemin . hemin can greatly decrease the cathodic activation energy of the reduction of artemisinin and promote the decomposition of artemisinin Mol l氯化血红素存在下，青蒿素仍可被催化还原，阴极过电位降低了600mv 。配合物edta - fe具有类似氯化血红素的催化性质，它降低了qhs阴极过电位590mv 。在这个体系中，青蒿素在碳电极上的还原是一个借助于氯化血红素催化的还原过程，氯化血红素的存在降低了青蒿素还原活化能，促进了青蒿素的分解。
The main characteristic of the biosensor was to introduce the air as the carrier flow instead of the common solution carrier for the first time . the uric acid was sensed by the cl reaction between hydrogen peroxide produced from the enzymatic reactor and luminol under the catalysis of hrp in the microreactor . the present biosensor chip was successfully applied to the measurements of uric acid in serum 第四章中，研究了鲁米诺铁氰化钾edta甲基多巴这一化学发光反应特点，结果表明鲁米诺铁氰化钾甲基多巴在碱性条件下能产生强烈的化学发光，该反应为快发光过程，当一定量的edta存在下，该发光转变成一慢发光过程。
Finally , the relation between the field of view matching of digital binoculars and the size of field of view of binoculars and camera is analyzed theoretically . based on the analysis of the mft principal and measure method of image sensor ’ s mtf , the contact measure method using rectangle template for mtf of image sensor is created . according to the number of pixels of image sensor in one cycle of the template function , the quantitive relation between sine template and rectangle template is proposed through theoretical analysis and comparison 并利用衍射理论,从模板的形式(正弦形、矩形) 、模板与传感器间距等几个关键因素出发,进行了深入的理论探讨,从理论上导出了矩形模板和正弦模板的差异、模板与图像传感器光敏面存在间距的情况下的光场分布;并最终导出了间距存在下图像传感器调制传递函数值测得值与标准值之间的调整系数,利用此调整系数对实验数据进行修正后可得到更为准确的调制传递函数。
In this thesis the in situ brilliant cresyl blue ( bcb ) dimer with weak fluorescence in the solution of anionic surfactant ( as ) sodium lauryl sulfonate ( sls ) was used as fluorescence probe . at the same time , the new method for the determination of bovine serum albumin ( bsa ) was built . the linear range was 0 - 7mg / l and the detection limit ( 3 o / k ) was 3 . 66 10 - 3 mg / l , the r . s . d for the determination of 2 . 00mg / l bsa was 2 . 77 % 本论文以阳离子染料灿烂甲酚蓝在阴离子表面活性剂十二烷基磺酸钠存在下形成的现场弱荧光二聚体为荧光探针，建立了测定牛血清白蛋白的新方法，该法线性范围为0 7mg / l ，检测限为3 . 66 10 ~ ( - 3 ) mg / l ，对2 . 00mg / l几的牛血清白蛋白平行测定8次，相对标准偏差为2 . 77 ，说明本法准确可靠。
Abstract : this paper describes a new preparation technique of calcium iodate . at the presence of hydrochloric acid , iodine is oxidated by sodium chlorate , and then reacts with calium hydroxide . a series of constrasted experiments are made on the conditions and different techniqures . relatively high productivity and purity at low cost . easy controllability and operation are the main features of this kind of technique 文摘:介绍了以单质碘为原料，在盐酸存在下，经氯酸钠氧化，再与氢氧化钙进行中和反应制备碘酸钙的方法，并做了最佳工艺条件和不同方法的对比实验.本法具有收率较高、纯度较高、生产成本较低及反应条件易控制、设备简单、操作方便等特点
Increasing ultrasound intensity in the range of cavitation threshold and cavitation peak value , decreasing monomer concentration and increasing the temperature make the induction period shorter . under optimized reaction conditions , the conversion of ba can reach 90 % in 11 min at high n2 flow rate the viscosity average molecular weight of the obtained pba reaches 5 . 24 106 . the molecular weight of pba varies with ultrasonic irradiation time , indicating that the ultrasonic induced emulsion polymerization is dynamic and quite complicated , polymerization of monomer as well as degradation of polymer occurs concomitantly 一、实现了无常规化学引发剂存在下的超声辐照引发丙烯酸正丁酯( ba )间歇乳液聚合，制备了pba纳米粒子，在11min内转化率达到90 ，分子量达5 . 24 10 ~ 6 ，随反应时间的延长而降低，表明超声辐照引发乳液聚合是一个动态的复杂过程，单体的聚合和聚合物的降解同时发生。
The paper expounds how to find out the potential safe problems and unobvious defects , such as beyond - limit deflection in fixed girders for gantry bucket wheel stacker / reclaimer , by means of completely checking fixed girders , movable beams , geometric shapes of stiff and flexible supporters , metal thickness and welding and how to solve the safe problems and remove the defects 摘要通过对门式斗轮堆取料机固定梁、活动梁、刚性支腿、挠性支腿的几何形状、金属厚度、焊缝状况、联接螺栓状况进行全面检测，发现门式斗轮堆取料机固定梁存在下挠超标的安全隐患和其他非明显缺陷，从而对堆取料机的安全状况有了全面的掌握，并根据检测结论对固定梁下挠缺陷及时进行校正消缺，避免发生设备垮塌事故，保证了堆取料机的安全稳定运行。
The n - terminus truncated mutant can not form tight dimeric and tetrameric structure , and leads to the destruction of the quaternary structure , which is quite the contrary to wild type arog . these data indicate that n - terminus of arog is not only involved in the feedback inhibition , but also plays a role in the formation of stable dimer which is an essential structure for its enzymatic activity . according to the 3d structure , " d2 " symmetry of arog , to which contributed by leu 16 , trp215 and his217 , is essential for the feedback inhibition 对“ dz ”对称性相关的氨基酸leul6 、 trpz15和hisz17进行点突变和双突变研究结果表明: l )在1mm苯丙氨酸的存在下， leul6ala 、 trpz15ala和hisz17ala能解除35一70 %的反馈抑制， t印2巧ala的比活降低65 %以上，其余两者的比活与野生型相近; 2 )在lmm苯丙氨酸的存在下，导入双点突变trpz1sai洲isz17ala和leul6hi撇isz17leu后能够完全解除arog的反馈抑制，同时保持与野生型相当的比活。
Compared with the induction meter , the electronic meter ' s measurement error is affected diminutively by the change of the frequency , that is to say , the electronic meter has a wide frequency respond characteristic and its error - frequency characteristic curve is flat . therefore , taking the whole energy as measurement standard , the measurement error of electronic meter is less than that of induction meter very much ; while the measurement error of electronic meter is bigger than that of induction meter when taking the basic energy as measurement standard 和感应式电能表相比，电子式电能表的计量误差受频率变化影响较小，具有较宽的频率响应，误差频率特性曲线较为平坦，因此，在谐波存在下以全能量为计量标准时，电子式电能表的计量误差远远小于感应式电能表的电能计量误差，而以基波能量为计量标准时，电子式电能表的计量误差比感应式电能表的计量误差大。
