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Wang Z.,Liaocheng Hospital | Wang Z.,Liaocheng University | Yan Z.,Tobacco Research Institute of CAAS | Wang M.,Liaocheng Hospital | Zhao J.,Liaocheng Hospital
International Journal of Electrochemical Science | Year: 2015

The high cost and insufficient catalytic activity of carbon-supported Pt nanoparticle catalysts are two main problems in the commercial deployment of microbial fuel cell (MFC). In an effort to address these barriers, three carbon-supported Pt-Ni alloy electrocatalysts with varying Pt:Ni atom ratios (Pt3-Ni/C, Pt2-Ni/C, Pt-Ni/C) were prepared by simple NaBH4 reduction in glycerol at room temperature. All of the prepared Pt-Ni alloy nanoparticles (NPs) are highly dispersed on a carbon support and show a single-phase face-centered cubic structure with a particle size of 2.4-3.0 nm. The electrocatalytic performances of the synthesized Pt-Ni alloy catalysts were compared with that of commercial Pt/C by cyclic voltammetry and linear sweep voltammetry; among these NPs, the Pt2-Ni/C catalyst exhibits the highest activity for oxygen reduction reaction (ORR) in 0.1M HClO4. As the cathode catalyst, the maximum power density produced from MFC with Pt2-Ni/C (1724 mW m-2) was 22% higher than that with commercial Pt/C (1413 mW m-2). © 2015 The Authors. Source

Dong J.,Tobacco Research Institute of CAAS | Su J.,Shandong Linyi Tobacco Company | Wang G.,China Leaf Tobacco Company | Wu F.,Sichuan Liangshan Tobacco Company | Wang C.,Tobacco Research Institute of CAAS
Acta Tabacaria Sinica | Year: 2015

Brief history of tobacco seedling production and its developments in China were reviewed. Four major tobacco seedling techniques, including floating, fixed tray, sand tray, and moist tray were studied upon their respective advantages and disadvantages. Main problems of these techniques were pointed out and feasible solutions suggested. ©, 2015, State Tobacco Monopoly Bureau and China Tobacco Society. All right reserved. Source

Meng K.,Tobacco Research Institute of CAAS | Shi J.,Tobacco Research Institute of CAAS | Sun L.,Tobacco Research Institute of CAAS | Chang A.,Tobacco Research Institute of CAAS | Zhang J.,China Tobacco Shandong Industrial Co.
Tobacco Science and Technology | Year: 2013

To collect the germplasm materials of tobacco resistant to powdery mildew (Erysiphe cichoracearum DC), 21 tobacco cultivars were selected and inoculated with the fungal isolate, which was kept by Tobacco Research Institute of Chinese Academy of Agricultural Sciences, in greenhouse in 2011. In 2012, 15 tobacco cultivars were selected and inoculated with an isolate of E. cichoracearum DC, which was collected from Sichuan, in an isolation chamber. The results demonstrated that sun-cured tobacco Tangpeng was immune to both isolates. NC89 showed high resistance to the disease. Beihart1000-1, K346 and Jiyan No.9 possessed medium resistance to powdery mildew. Zhongyan90 and CF203 were highly susceptible to the disease. Longjiang911, G140, TI245, Zhongyan100, Yunyan87, Yunyan85, Zhongyan103, Honghuadajinyuan, Cuibi No.1, G80, NC55, Nanjiang No.3 and Jingyehuang were medium or high susceptible to powdery mildew. Hicks showed different resistance to the two isolates with no obvious regularity. Source

Fu Q.,Tobacco Research Institute of CAAS | Yang B.,Shanghai Tobacco Group Co. | Ge J.,Shanghai Tobacco Group Co. | Liu D.,China Tobacco Shandong Industrial Co. | And 2 more authors.
Tobacco Science and Technology | Year: 2014

In order to rapidly detect the major physical indices (weight per unit leaf area, filling value, thickness, equilibrium moisture content and tensile strength) of flue-cured tobacco with near infrared (NIR) spectroscopy technology, NIR mathematical models were developed with near infrared diffuse reflectance spectroscopy and stechiometry. The results showed that the root mean square errors of prediction (RMSEP) of weight per unit leaf area, thickness, tensile strength, filling value and equilibrium moisture content were 0.553, 0.0169, 0.149, 0.234, 0.277, respectively; their average relative deviation were 7.82%, 8.36%, 10.88%, 4.18%, 2.83%, respectively. The results of t-test indicated that there was no significant difference between predictive values and standard values, the developed NIR models could be used in the rapid detection of physical indices of batches of tobacco samples. Source

Luo Z.,Tobacco Research Institute of CAAS | Shi J.,Tobacco Research Institute of CAAS | Wang C.,China Tobacco Zhejiang Industrial Co. | Chen Q.,China Tobacco Zhejiang Industrial Co. | And 3 more authors.
Tobacco Science and Technology | Year: 2015

In order to clarify the resistance of Hubei origin germplasms of air-cured and sun-cured tobaccos to powdery mildew, 88 germplasms of air-cured and sun-cured tobacco were evaluated in greenhouse by spraying inoculation with the fungal isolate kept by Tobacco Research Institute of Chinese Academy of Agricultural Sciences. The results showed that the resistance to powdery mildew differed significantly, 13 were highly resistant (HR), 39 moderately resistant (MR), 18 moderately susceptible (MS), and 18 highly susceptible (HS) among the total 88 germplasms. The highest resistant ones were LC04, ZX06 and WF04, with relative resistant indexes of 0.99. The highest susceptible ones were FJY01 and CY08, with relative resistant indexes of less than 0.1. The results of variance analysis indicated that the differences of infected leaf ratio, disease index and relative resistant index reached significantly levels (p<0.05) between different resistant types. The 88 germplasms were clustered into HR, MR, MS and HS groups by DPS data analyzing software. ©, 2015, Editorial Office of Tobacco Science and Technology. All right reserved. Source

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