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101.
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Krishnan M. S. Xia Y. Tsao G. T. Kasthurikrishnan N. Srinivasan N. Cooks R. G. 《Applied biochemistry and biotechnology》1995,51(1):479-493
Applied Biochemistry and Biotechnology - Inhibitory effects of ethanol and glucose on a high-ethanol-tolerance yeast strain (fusion product ofSaccharomyces diastaticus andSaccharomyces uvarum)... 相似文献
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采用巨正则蒙特卡罗方法(GCMC)研究了单壁氮化硼纳米管(SWBNNTs)和单壁碳纳米管(SWCNTs)的物理吸附储氢性能,主要对比研究了纳米管的管径、温度和手性对二者物理吸附储氢量的影响. 研究结果表明:在低温下,SWBNNTs的物理吸附储氢性能优于相应的SWCNTs;但是随着温度的升高,二者的物理吸附储氢性能差别越来越小,在常温下,SWBNNTs不具备有比SWCNTs更强的物理吸附储氢性能,而是和相同条件下的SWCNTs相差不大,只是在高压下的物理吸附储氢量稍稍大于SWCNTs,并给出了合理的理论解释
关键词:
巨正则蒙特卡罗方法(GCMC)
单壁氮化硼纳米管(SWBNNTs)
单壁碳纳米管(SWCNTs)
储氢 相似文献
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Chao-Yang Zhao Huimin Sui Endi Xue Li Li Jie Zhang Tao Xu Xin Liang Ying Yang 《Molecules (Basel, Switzerland)》2022,27(14)
Coupled with an azo coupling reaction, a simple, rapid, sensitive, and effective surface-enhanced resonance Raman scattering (SERRS) detection method for benzocaine was developed. In our study, benzocaine which is used clinically as a local anesthetic was derived with p-aminothiophenol into a corresponding azo product within 5 min, resulting in a strong SERRS response with the simple addition of Ag NPs excited with a 532 nm laser. The linear correlation between SERRS intensity of dominant bands and logarithm of benzocaine concentration was investigated for quantitative determination. The method reached a limit of detection (LOD) down to 0.139 and 0.0788 μg/mL calculated with two peak intensity ratios (I1568/I2260 and I1331/I2260), which is comparable to most studies reported previously, and meanwhile had superiority in simplicity and rapidness. The quantitative measurements for pharmaceutical preparations with benzocaine were conducted without complex extraction and enrichment processes. It was indicated that the SERRS assay combined with azo derivatization reaction has implications for practical applications in more complicated systems involving biological samples, in which appropriate and simplified pretreatments were conducted to remove interfering components. 相似文献
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H-Y Tsao P-C Lin L Pitt C Campbell 《The Journal of the Operational Research Society》2009,60(5):646-651
Researching customer retention rates is made difficult because of the lack of suitable systems with which to measure it. From a first-order Markov brand-switching model, serial equations are derived to estimate the retention rate using market share and loyalty. To explore the impact of loyalty and promotion programme on retention rate, data from five leading brands for three product categories were obtained to fit the developed model. Findings suggest that: (1) when the loyalty effect remains unchanged over a period of time, the greater the effect of a promotion programme, the greater the retention rate; (2) when the promotion effects among brands are similar, the retention rate varies depending on level of loyalty; and (3) when the proportion of loyal customers is high, the proportion of potential switchers affected by promotion programmes is low. In this case, the impact of a promotion programme on the retention rate is not significant. This model successfully demonstrates how the Markov brand-switching model can be employed to estimate a measure of retention rate from consumer panel data as well as to better understand how promotion affects loyalty, switching behaviour, and retention rate. 相似文献
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1INTRODUCTIONCrystalofK3Li2+xNb5+xO15+2xisaferoelectriccrystalbelongingtotetragonalsystemwiththestructureofthemineraltungsten... 相似文献
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