Zhang T.-D.,Hongyunhonghe Tobacco Group Corporation |
Zhou B.,Hongyunhonghe Tobacco Group Corporation |
Zeng X.-Y.,Hongyunhonghe Tobacco Group Corporation |
Zhe W.,Hongyunhonghe Tobacco Group Corporation |
And 4 more authors.
Asian Journal of Chemistry | Year: 2013
Highly ordered mesoporous carbon with complementary pores was prepared by evaporation-induced triconstituent co-assembly method. The adsorption isotherms were determined from the batch tests during which the effects of initial phenol concentration (25-1200 mg/L) were investigated. Both Langmuir and Freundlich isotherm models were developed and then compared. The equilibrium data were best represented by Langmuir isotherm model, showing maximum monolayer adsorption capacity of 480 mg/g which is two times higher than that of the activated carbon. The results showed that the prepared ordered mesoporous carbon is the suitable adsorbent for removal of phenol from aqueous solutions.
Zheng X.,Yunnan Academy of Agricultural Sciences |
Xu J.,Hongyun Honghe Tobacco Group Ltd Company |
Chen Y.,Yunnan Academy of Agricultural Sciences |
Zhang J.,Yunnan Academy of Agricultural Sciences |
And 4 more authors.
International Journal of Pest Management | Year: 2014
The tomato zonate spot virus (TZSV) is responsible for substantial yield losses in vegetables, tobacco and other cash crops in China in recent years. The western flower thrips, Frankliniella occidentalis (Pergande) (Thysanoptera, Thripidae), is the main vector of TZSV in Yunnan Province. Because controlling the population of insect vectors is the most efficient way to prevent epidemics of viral diseases, we conducted laboratory assays to assess the potential of using spirotetramat as an alternative to imidacloprid in controlling F. occidentalis. Our results demonstrated that spirotetramat was significantly more lethal than imidacloprid to F. occidentalis at different concentrations. The LC30, LC50 and LC90 values of spirotetramat were all much lower than those of imidacloprid after the same time of treatment. Frankliniella occidentalis was more sensitive when treated with spirotetramat than imidacloprid at the concentrations of 500, 250, 125 and 62.5mg/L, and the median lethal concentrations (LC50) were 285.53, 82.24 and 11.19mg/L at 12, 36 and 72 hours after treatment, respectively. Spirotetramat caused 100% mortality of F. occidentalis at 500 and 250 mg/L after 48 hours treatment, and at the lowest concentration 125 mg/L at 72 hours after treatment, respectively. Field experiments carried out elsewhere have confirmed our findings. Together they allow us to conclude that spirotetramat is a promising pesticide for the control F. occidentalis in China. © 2014 Taylor & Francis.
Wang J.,Huazhong University of Science and Technology |
Xu Y.,Hongyun Honghe Tobacco Group Company Ltd |
Wang D.,Hongyun Honghe Tobacco Group Company Ltd |
Guo W.,Shenzhen Skyeyes Science and Technology Company Ltd
Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition) | Year: 2013
Action recognition has a wide range of applications in the aspect of video surveillance. Most of previous methods require expensive computation when online recognition and cannot meet the need of real-time actions recognition in the field as video surveillance. Moreover, because of the training set which may not have enough samples, these methods cannot cover all the patterns of some actions in real world. In this paper, a real-time human action recognition method based on contour skeleton features in continuous frames was proposed, the contour skeleton was extracted from human target's silhouette and the multi-pivot skeleton model (MPSM) was built as the representation of human target. The features used to recognize actions were extracted via analyzing MPSM in continuous frames. The experiments shows that the proposed method can work well in recognizing some actions like bowing, running and walking with bag on plate of video surveillance.
Zhang J.,Hubei University of Education |
Li R.,Wuhan University |
Li R.,China Tobacco Hubei Industrial LLC |
Jiang F.-L.,Wuhan University |
And 11 more authors.
Colloids and Surfaces B: Biointerfaces | Year: 2014
In this work, we proposed an immobilization scheme targeting Escherichia coli bacterial cells onto gold surface utilizing polypeptide RGD's binding specificity to gold particles. Adsorption kinetics of extracellular Herring Sperm DNA on E. coli was then studied using electrochemical methods along with surface plasmon resonance spectroscopy through this immobilization scheme. The adsorption equilibrium constants of DNA adsorbing to E. coli from electrochemical method and surface plasmon resonance spectroscopy, were (5.596±0.462)×105Lmol-1 and (1.24±0.361)×105Lmol-1, accordingly. Importantly, this is the first study that used an electrochemical method to express the adsorptive action of DNA by E. coli. © 2014 Elsevier B.V.