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Direct ethanol production from dextran industrial waste water by Zymomonas mobilis
Ming-xiong He,Han Qin,Xiao-bo Yin,Zhi-yong Ruan,Fu-rong Tan,Bo Wu,Zong-xia Shui,Li-chun Dai,Qi-chun Hu 한국화학공학회 2014 Korean Journal of Chemical Engineering Vol.31 No.11
The direct production of ethanol from dextran industrial waste water was investigated by using Zymomonasmobilis via batch and semi-continuous fermentation mode. In batch fermentation, pretreated waste water (unsterilizedand sterilized), pH value (3.8 and 6.0), and Mg2+(with and without) was compared with OD600, sugar and ethanol con-centration. After 24 h fermentation, sugar in the dextran waste water was almost exhausted, and the amount of ethanolaccumulated reached 24.33-29.92 g/l, which is nearly 99% of the theoretical yield of ethanol. Kinetic parameters ofZ. mobilis in batch fermentation were also investigated. The raw dextran waste water was also used in semi-continuousfermentation. After 48 h fermentation, the production of ethanol was 28.65 g/l. These results indicated that dextranwaste water may be used as a candidate substrate and Z. mobilis could convert the raw material into ethanol directly.
Influence on the Use Intention of Alipay Payment Service by Chinese Tourists Visiting Korea
Ming-Guang HE,Hwa-Kyung KIM,Jong-Ho LEE 한국유통과학회 2019 The Journal of Industrial Distribution & Business( Vol.10 No.11
In the past, the South Korean government made various efforts to attract Chinese tourists, resulting in gradually more inbound tourists. In 2016, the number of Chinese tourists to South Korea peaked at 8.06 million and became the top source market. Nevertheless, increasing numbers of consumers choose to adopt the mobile payment tool instead of cash and credit cards in modern times with developed IT services. Research design, data, and methodology: IBM SPSS AMOS 23.0 and IBM Statistics 23.0 were used to analyze the data, which was collected from hotel employees in China from March 25 to May 10. Results: First, Interactivity, security, convenience, local information supply and user interface had positive effects on satisfaction and reliability. Second, it was believed that the convenience of Alipay played a positive role in increasing reliability and satisfaction through verification. Third, the role of use rate was found to be important in the development of Alipay functions. Conclusions: Based on the result, an analysis on the development of the Alipay market and the use of Alipay in South Korea is warranted. Furthermore, this paper will serve as a basis for flexible strategic plans for the development of Alipay and SMEs in South Korea.
He Shao-ming,Lin De-fu 한국항공우주학회 2014 International Journal of Aeronautical and Space Sc Vol.15 No.1
This article documents the design of a novel two-loop acceleration autopilot based on L1 adaptive output feedback control for tail-controlled missiles. The inner loop is an adaptive angle-of-attack tracking loop and the outer loop is the traditional PI controller for error compensation. A systematic low-pass filter design procedure is provided for minimum phase system and is applied to the inner loop design while the parameters of the outer loop are obtained from the multi-objective optimization problem. The effectiveness of the proposed autopilot is verified through numerical simulations under various conditions.
Ming He Pei ...et al KYUNGPOOK UNIVERSITY 2001 Kyungpook mathematical journal Vol.41 No.2
In this paper, we study the existence and uniqueness of solution of two-point and three-point boundary value problems for nth-order ordinary differential equation (1.1) which possess boundary conditions (1.2), (1.3), (1.4), (1.5) and (1.6) respectively, where the results of the existence and uniqueness of solutions for BVP(1.1)(1.4), BVP(1.1)(1.5) and BVP(1.1)(1.6) generalize corresponding results in [6] and [7].
Diversity and Metal Tolerance of Nematode-Trapping Fungi in Pb-Polluted Soils
Ming-He Mo,Wei-Min Chen,Hao-Ran Yang,Ke-Qin Zhang 한국미생물학회 2008 The journal of microbiology Vol.46 No.1
The diversity of nematode-trapping fungi (NTF) in two lead (Pb) mines in Yunnan Province, China was investigated in 2004. In total, 20 species belonging to five genera were identified from 500 samples collected at the Lanping and the Huize mines. Pb concentrations ranged from 216~7,150 mg/kg for the former and 132~13,380 mg/kg for the latter, respectively. The fungi were divided into five groups based on different trapping mechanisms. The trapping-net producer group contained the largest number of species, with nine. Two predators, Dactylellina ellipsosporum and Arthrobotrys oligospora, were found at frequencies of 32.85% and 15.41%, respectively. The diversity indexes of NTF were positively correlated with Pb pollution levels in both the Lanping Mine (r=0.66) and the Huize Mine (r=0.72), suggesting that the distribution of NTF was not negatively affected by Pb contamination. For most strains of a given species, there was no significant difference (P>0.01) in the Pb tolerance between the strains isolated from habitats with low or high Pb concentrations. However, Pb toxicity exerted adverse effects on trap formation and predacious capability of fungi. We discuss the possible metal tolerance mechanisms and their relationships to the survival strategy of NTF in Pb-polluted environments.
Ming Guang He,Myung Hee Jung,Jong Ho Lee 한국유통과학회 2017 KODISA ICBE (International Conference on Business Vol.2017 No.-
The South Korean government made various efforts in order to attract Chinese tourists, resulting in more and more Chinese tourists flock in South Korea. In 2016, the number of Chinese tourists in South Korea reached 8 million and 60 thousand, and they became the main tourist group in South Korea, surpassing Japanese tourists for the first time (Korea National Tourism Organization, 2017). Nevertheless, increasing numbers of consumers choose to adopt the mobile payment tool instead of cash and credit cards in modern times with developed IT services. Firstly, it is essential to comb the concept of the mobile payment, the review of Alipay and the market situation of Alipay in South Korea.Thirdly, it is indispensable to analyze the effect of the service quality and the personal characteristics of Alipay on satisfaction and trust. Finally, on the basis of the analytic result, analyze the development of the Alipay market and the use of Alipay in South Korea. Moreover, this paper will put forward some flexible strategic plans for the development of Alipay and SMEs (small and medium-sized enterprises) in South Korean.