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Kang Huang,Mianhao Wang,Shengchao Zhen 제어·로봇·시스템학회 2021 International Journal of Control, Automation, and Vol.19 No.7
A new adaptive robust control method based on Udwadia-Kalaba(U-K) approach which can be applied to the underactuated system is designed and used to a two-wheeled inverted pendulum system in this paper. We separate this typical underactuated system into two subsystems(forward subsystem and yaw subsystem), which are fully underactuated and actuated. For these different subsystems, we use different control methods. We apply an adaptive robust control method which has been proved many times to the fully actuated subsystem. Based on thisadaptive robust method, a new control strategy can be redesigned and applied to the underactuated subsystem by modifying the adaptive law and other things. This adaptive robust control with a leakage-type adaptive law could guarantee the uniform boundedness and uniform ultimate boundedness of the system. Finally, the simulation is executed to demonstrate the advantage and simplicity of the proposed method.
High-mobility three-atom-thick semiconducting films with wafer-scale homogeneity
Kang, Kibum,Xie, Saien,Huang, Lujie,Han, Yimo,Huang, Pinshane Y.,Mak, Kin Fai,Kim, Cheol-Joo,Muller, David,Park, Jiwoong Nature Publishing Group, a division of Macmillan P 2015 Nature Vol.520 No.7549
The large-scale growth of semiconducting thin films forms the basis of modern electronics and optoelectronics. A decrease in film thickness to the ultimate limit of the atomic, sub-nanometre length scale, a difficult limit for traditional semiconductors (such as Si and GaAs), would bring wide benefits for applications in ultrathin and flexible electronics, photovoltaics and display technology. For this, transition-metal dichalcogenides (TMDs), which can form stable three-atom-thick monolayers, provide ideal semiconducting materials with high electrical carrier mobility, and their large-scale growth on insulating substrates would enable the batch fabrication of atomically thin high-performance transistors and photodetectors on a technologically relevant scale without film transfer. In addition, their unique electronic band structures provide novel ways of enhancing the functionalities of such devices, including the large excitonic effect, bandgap modulation, indirect-to-direct bandgap transition, piezoelectricity and valleytronics. However, the large-scale growth of monolayer TMD films with spatial homogeneity and high electrical performance remains an unsolved challenge. Here we report the preparation of high-mobility 4-inch wafer-scale films of monolayer molybdenum disulphide (MoS<SUB>2</SUB>) and tungsten disulphide, grown directly on insulating SiO<SUB>2</SUB> substrates, with excellent spatial homogeneity over the entire films. They are grown with a newly developed, metal–organic chemical vapour deposition technique, and show high electrical performance, including an electron mobility of 30 cm<SUP>2</SUP> V<SUP>−1</SUP> s<SUP>−1</SUP> at room temperature and 114 cm<SUP>2</SUP> V<SUP>−1</SUP> s<SUP>−1</SUP> at 90 K for MoS<SUB>2</SUB>, with little dependence on position or channel length. With the use of these films we successfully demonstrate the wafer-scale batch fabrication of high-performance monolayer MoS<SUB>2</SUB> field-effect transistors with a 99% device yield and the multi-level fabrication of vertically stacked transistor devices for three-dimensional circuitry. Our work is a step towards the realization of atomically thin integrated circuitry.
Research on the Machine for Acquiring Pineapple Stems
( Wen-luh Huang ),( Yu-hao Kang ),( Yan-ru Huang ) 한국농업기계학회 2018 한국농업기계학회 학술발표논문집 Vol.23 No.1
This research just want to pick up the stem of the pineapple plant which originally be abolished and be discarded as to be fertilizer in the pineapple field before, and let the stem of the pineapple plant be utilized by the Biotech Company extract pineapple raw materials of enzyme to make good use of waste materials again. This machine is mainly composed of an overhead pineapple exclusively machine, getting rid of the leaf apparatus and taking off the leaf apparatus.Especially, getting rid of the leaf apparatus is composed of one of Robin 22HP petrol engines been, oil pressure system which be raised , two sets of cutting knives, one set of longitudinal knife and other steering components. Through test statistics, it shows that getting rid of leaf rate is 53.40% much high if the cutting height and the process speed are under the terms of 35 cm and 0.56 m/s. Meanwhile, the rate of getting rid of leaf and taking off leaf will become reciprocal. According to the test, the result shows that the average of discarding rate of the leaf is 88.52% which proceeded by the whole 216 pineapple plant samples counted, and the average of rate of recovery is 10.13%. Under the above tests, the costs that the raw Biotech Company obtains pineapple stem raw materials are extremely high. That’s why to develop this machine should be much more important and urgent to study in the near future.
Physostigmine과 procyclidine으로 구성된 유기인제 중독 복합예방제에 대한 2주 반복투여 용량설정시험
황재식(Zai-Zhi Huang),강현구(Hyun-Gu Kang),박선희(Sun-Hee Park),강성귀(Seong-kwi Kang),이종성(Jong-Sung Lee),박종일(Jong-Il Park),김왕수(Wang-Soo Kim),피택산(Taek-San Phi),황석연(Seok-Yeon Hwang),강종구(Jong-Koo Kang),김윤배(Yun-Bae 한국실험동물학회 2003 Laboratory Animal Research Vol.19 No.4
Proton Conducting Behavior of a Novel Composite Based on Phosphosilicate/Poly(Vinyl Alcohol)
Huang, Sheng-Jian,Lee, Hoi-Kwan,Kang, Won-Ho The Korean Ceramic Society 2005 한국세라믹학회지 Vol.42 No.2
A series of proton conductive composite membranes based on poly(vinyl alcohol) and phosphosilicate gels powders were successfully prepared. The proton conductivity of these composite was attributed to the phosphosilicate gel, which derived from tetraethoxysilane and phosphoric acid by sol-gel process at a molar ratio of P/Si = 1.5. The proton conductivity increased with increasing both the content of phosphosilicate gel and relative humidity. Temperature dependence of conductivity showed a Vogel-Tamman-Fulcher type behavior, indicating that proton was transferred through a liquidlike phase formed in micropores of phosphosilicate gel. The high conductivity of 0.065 S/cm with a membrane containing 60 wt$\%$ of the gel was obtained at $60^{\circ}C$ at $90\%$ relative humidity.
A Study on the Development of the Third Party Payment in Chinese Internet Finance
HUANG, Yanyan,KANG, Taewon,DUAN, Xianming 조선대학교 지식경영연구원 2014 기업과 혁신연구 Vol.7 No.3
The internet finance is the new ecological finance emerging in the internet era. Mainly based on the practices of technological companies including Alibaba, the connotation and denotation of Alibaba are constantly expanded. Especially, in recent years, the internet finance has achieved a great development. Being the key component of internet finance, the third party payment platform has been constantly expanding its transaction scale and promoted innovative businesses. Moreover, the third party payment causes the most influence on common people’s life among the internet financial innovation. As the representative of the third party payment platform, Yuebao, the innovative product of Alibaba’s Alipay, may deeply change the users’ paying and saving opinions. Thus, through the development situation and latest progress of the third party payment based on literature analysis method and data statistics method, it is known that the third party payment already occupies a dominant position in the E-payment field. In the following years, Chinese E-commerce market will develop faster with greater scale. Furthermore, as to the strong practice feature in the internet industry, the paper analyzes the Alibaba’s operation mechanism and feature based on Alipay’s practices. In addition, the reason for Alipay’s success is analyzed by marketing analysis method (4C Theory) and information technology knowledge (analysis on mobile payment and cloud computing). On this base, the specific countermeasures and suggestions are proposed. Meanwhile, the basic competitive situation is analyzed by Porter’s Five Forces Model and the path for the future development of the third party payment is proposed.
Huang, Gui-Ling,Yang, Lei,Su, Ming,Wang, Shao-Kang,Yin, Hong,Wang, Jia-Sheng,Sun, Gui-Ju Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.2
Objective: The aim was to evaluate roles of vitamin D3 (VD3) and beta-carotene (BC) in the development of esophageal squamous cell carcinoma (ESCC) in a high-risk area, Huai'an District, Huai'an City, China. Methods: 100 new ESCC diagnosed cases from 2007 to 2008 and 200 residency- age-, and sex-matched healthy controls were recruited. Data were collected from questionnaires, including a food frequency questionnaire (FFQ) to calculate the BC intake, and reversed phase high-performance liquid chromatography (RP-HPLC) was used to measure the serum concentrations of BC and VD3. Odds ratios (OR) and 95% confidence intervals (CI) were calculated in conditional logistic regression models. Results: The average dietary intake of BC was $3322.9{\mu}g$ (2032.4-5734.3) in the case group and $3626.8{\mu}g$ (1961.9-5827.9) in control group per capita per day with no significant difference by Wilcoxon test (p>0.05). However, the levels of VD3 and BC in the case group were significantly lower than in the control group (p<0.05). The OR values of the highest quartile and the lowest quartile of VD3 and BC in serum samples were both 0.13. Conclusion: Our results add to the evidence that high circulating levels of VD3 and BC are associated with a reduced risk of ESCC in this Chinese population.
Rho-kinase/AMPK axis regulates hepatic lipogenesis during overnutrition
Huang, Hu,Lee, Seung-Hwan,Sousa-Lima, Inê,s,Kim, Sang Soo,Hwang, Won Min,Dagon, Yossi,Yang, Won-Mo,Cho, Sungman,Kang, Min-Cheol,Seo, Ji A.,Shibata, Munehiko,Cho, Hyunsoo,Belew, Getachew Debas,Bhi American Society for Clinical Investigation 2018 The Journal of clinical investigation Vol.128 No.12