http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Yan-Jun Liang,You-Jun Lu,De-Xin Gao,Zhong-Sheng Wang 제어·로봇·시스템학회 2022 International Journal of Control, Automation, and Vol.20 No.2
The vibration control problem of offshore jacket platforms is studied. The model of offshore platforms with nonlinear interactions of the pile-soil affected by the wave load disturbances is established. The wave loads are determined by using the Morison equation and are considered as disturbances with known dynamic characteristics but unknown initial conditions. Based on the successive approximation approach (SAA), we propose an approximate optimal vibration control scheme for the nonlinear systems of the offshore jacket platforms. Numerical simulations illustrate the effectiveness of the proposed approach.
Optimal Vibration Control for Nonlinear Systems of Tracked Vehicle Half-Car Suspensions
Yan-Jun Liang,Na Li,De-Xin Gao,Zhong-Sheng Wang 제어·로봇·시스템학회 2017 International Journal of Control, Automation, and Vol.15 No.4
Technique of optimal vibration control and simulation for vehicle active suspension systems is developed. Considered the nonlinear damping of springs, mechanical model and nonlinear dynamic system for a class oftracked vehicle half-car suspensions vibration control are established and the corresponding system of state spaceform is described. In order to prolong the working life of suspension system and improve ride comfort, based onthe active suspension vibration control devices and used optimal control approach, an optimal vibration controlleris designed, and an algorithm is presented for the vibration controller. Numerical simulation results illustrate theeffectiveness of the proposed technique.
( Jun Tao ),( Fa-liang An ),( Zheng-hua Pan ),( Yan-hua Lu ) 한국미생물생명공학회(구 한국산업미생물학회) 2018 Journal of microbiology and biotechnology Vol.28 No.5
Biofilms are of vital significance in bioconversion and biotechnological processes. In this work, sugarcane molasses was used to enhance biofilms for the improvement of the production of fumigaclavine C (FC), a conidiation-associated ergot alkaloid with strong anti-inflammatory activities. Biofilm formation was more greatly induced by the addition of molasses than the addition of other reported biofilm inducers. With the optimal molasses concentration (400 g/l), the biofilm biomass was 6-fold higher than that with sucrose, and FC and conidia production was increased by 5.8- and 3.1-fold, respectively. Moreover, the global secondary metabolism regulatory gene laeA, FC biosynthetic gene fgaOx3, and asexual central regulatory genes brlA and wetA were upregulated in molasses-based biofilms, suggesting the upregulation of both asexual development and FC biosynthesis. This study provides novel insight into the stimulatory effects of molasses on biofilm formation and supports the widespread application of molasses as an inexpensive raw material and effective inducer for biofilm production.
Association of XRCC3 Thr241Met Polymorphisms and Gliomas Risk: Evidence from a Meta-analysis
Liang, Hong-Jie,Yan, Yu-Lan,Liu, Zhi-Ming,Chen, Xu,Peng, Qi-Liu,Wang, Jian,Mo, Cui-Ju,Sui, Jing-Zhe,Wu, Jun-Rong,Zhai, Li-Min,Yang, Shi,Li, Tai-Jie,Li, Ruo-Lin,Li, Shan,Qin, Xue Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.7
The relationship between the X-ray repair cross-complementing group 3 (XRCC3) Thr241Met polymorphism and gliomas remains inclusive or controversial. For better understanding of the effect of XRCC3 Thr241Met polymorphism on glioma risk, a meta-analysis was performed. All eligible studies were identified through a search of PubMed, Elsevier Science Direct, Excerpta Medica Database (Embase) and Chinese Biomedical Literature Database (CBM) before May 2013. The association between the XRCC3 Thr241Met polymorphism and gliomas risk was conducted by odds ratios (ORs) and 95% confidence intervals (95% CIs). A total of nine case-control studies including 3,533 cases and 4,696 controls were eventually collected. Overall, we found that XRCC3 Thr241Met polymorphism was significantly associated with the risk of gliomas (T vs. C: OR=1.10, 95%CI=1.01-1.20, P=0.034; TT vs. CC: OR=1.30, 95%CI=1.03-1.65, P=0.027; TT vs. TC/CC: OR=1.29, 95%CI=1.01-1.64, P=0.039). In the subgroup analysis based on ethnicity, the significant association was found in Asian under four models (T vs. C: OR=1.17, 95%CI=1.07-1.28, P=0.00; TT vs. CC: OR=1.79, 95%CI=1.36-2.36, P=0.00; TT vs. TC/CC: OR=1.75, 95%CI=1.32-2.32, P=0.00; TT/TC vs. CC: OR=1.11,95% CI=1.02-1.20). This meta-analysis suggested that the XRCC3 Thr241Met polymorphism is a risk factor for gliomas, especially for Asians. Considering the limited sample size and ethnicities included in the meta-analysis, further large scale and well-designed studies are needed to confirm our results.
Liang He,Jun-Wen Cheng,Yan-Bin Wang,Hai-Bo Li,Hua Qian,Wei-Qi Li,Xue-Yong Ren 한국식품과학회 2014 Food Science and Biotechnology Vol.23 No.2
A 3 factor, 3 level Box-Behnken factorialdesign combined with response surface methodology wasused to optimize the fermentation process for production ofextracellular polysaccharide (EPS) from Hirsutella sinensis. The 3 independent variables were temperature (X1), initialpH (X2), and the glucose concentration (X3). Experimentaldata were fitted to a 2nd order polynomial equation usingmultiple regression. The optimal fermentation conditionsof the production of EPS were a temperature of 18.21oC,an initial pH of 5.81, and a glucose concentration of 7.39g/L. The maximum predicted EPS production of 2.41 g/Lwas close to the actual experimental EPS yield (2.42±0.038%), demonstrating the model validity. EPS from H. sinensis had a direct in vitro immuno-stimulating activityusing murine macrophage RAW264.7 cells, and stimulatedrelease of several major cytokines (IL-1β, NF-κB, TNF-α,and iNOS) in a dose-dependent manner.
Sunlight Compensation for Vision Based Drone Detection
Yan Han Lau,Niven Sie Jun Liang,Shao Xuan Seah,Sutthiphong Srigrarom 제어로봇시스템학회 2021 제어로봇시스템학회 국제학술대회 논문집 Vol.2021 No.10
Computer vision based object detection can be applied in security and monitoring scenarios, such as detecting and tracking drone intrusions using cameras. However, its effectiveness is dependent on environmental conditions. For example, under bright sunlight and clear sky conditions, the sunlight reflecting off a target could cause it to blend into the sky and prevent detection. In this paper, an algorithm to compensation for the effects of sunlight on object detection was proposed. The algorithm applied a localised contrast increase to the sky through RGB-HSV conversion and image extraction techniques, which avoided the generation of false positives among the treeline. Preliminary tests with prerecorded videos showed that the algorithm improves detection under bright sunlight conditions but the contrast gain had to be manually tuned. Methods to dynamically tune the gain, and field tests to determine the algorithm’s real time effectiveness, are slated for future work.