Bài giảng vi sinh vật trong sản xuất bánh mì - Đại học Bách khoa TpHCMBột chua thường bắt đầu từ những lớp bên trong khác với hiện tượng mốc. Nguyên nhân gây ra bột chua là do vi khuẩn lactic và một số vi khuẩn khác lên men đường có trong bột thành những axit khác nhau Bột bị ôi là do sự oxi hoá các chất béo trong bột bằng oxi không khí tạo thành các chất có vị ôi
82 trang | Chia sẻ: yendt2356 | Ngày: 28/11/2020 | Lượt xem: 1725 | Lượt tải: 1
Adaptive tracking control for twin rotor multiple-Input multiple-output based on iss stabilization - Nguyen Van Chi5. CONCLUSION This paper introduces the adaptive controller design based on the ISS stabilization to angle track problem for TRMS. In order to design the controller, the mathematical model of TRMS is rewritten in Euler-Lagrange forced model with uncertain parameters and input disturbance. By conssidering carefully the model, we found that the e...
17 trang | Chia sẻ: thucuc2301 | Ngày: 28/11/2020 | Lượt xem: 458 | Lượt tải: 0
Effect of Cyanobacteria nostoc Calcicola on Antioxidant system of soybean - Mai Van Chung4. CONCLUSION Strain Nostoc calcicola HN9 in death phase played as an unfavourable factor that caused a burst of ROS productions such as O2•- in stage V1 and H2O2 in stage V3, leading to oxidative stress in leaves of “Nam Dan” soybean. Treament by this cyanobacterial strain differently induced to non-enzymatic antioxidants: total phenolics earl...
11 trang | Chia sẻ: thucuc2301 | Ngày: 28/11/2020 | Lượt xem: 440 | Lượt tải: 0
About the robustness of adaptive feedback linearization controller for input perturbed uncertain fully-Actuated systems - Nguyen Van Chi3. CONCLUSIONS This paper refers to robustness of the fully actuated mechanical system which is considered by Euler – Lagrange forced model with input disturbances and contains constant uncertain parameters. By giving and proofing a theorem we conclude that the outputs of the system controlled by the adaptive feedback linearization controller w...
10 trang | Chia sẻ: thucuc2301 | Ngày: 28/11/2020 | Lượt xem: 482 | Lượt tải: 0
Improvement of CO2 purifying system by photocatalyst for application in microalgae culture technology - Doan Thi Oanh4. CONCLUSION V2O5/TiO2 photocatalytic material system was successfully fabricated with size 20 – 40 nm, BET specific surface area is of approximately 20 m2/g. This material strongly absorbs light in both UV area and 430 – 570 nm wave length area. V2O5/TiO2 photocatalytic material was a good catalyst for CO, NOx and SO2 conversion process. The...
7 trang | Chia sẻ: thucuc2301 | Ngày: 28/11/2020 | Lượt xem: 581 | Lượt tải: 0
One step synthesis of water-Dispersible cofe2o4 magnetic nanoparticles using triethylenetetramine as solvent and stabilising ligand - Kieu T. B. NgocWe have successfully prepared monodisperse and water-dispersible CoFe2O4 nanoparticles using one step synthetic method. The prepared nanoparticles are readily dispersible and relatively stable in aqueous solution without further surface monification steps. The particle sizecan be varied in the range of 7.2 - 11.3 nm with a standard deviation up ...
10 trang | Chia sẻ: thucuc2301 | Ngày: 28/11/2020 | Lượt xem: 479 | Lượt tải: 0
Study of sudden ionospheric disturbances using very low frequency receiver in nha trang, Vietnam - Vinh Hao4. CONCLUSION The research group has manufactured completely the VLF receiver in Nha Trang, Vietnam and has written successfully the data colecttion and data processing programs for the VLF receiver. The results of data processing for the VLF receiver in Nha Trang, Vietnam are consistent with the results published of the VLF receiver at A118 s...
10 trang | Chia sẻ: thucuc2301 | Ngày: 28/11/2020 | Lượt xem: 483 | Lượt tải: 0
Executive review of hydrostatic pressure effects on sludge pretreatment by sonication - Ngoc Tuan Le4. CONCLUSIONS The effect of hydrostatic pressure on sludge sonication disintegration was studied in recent years and reviewed in this work. As far as sufficient acoustic intensity was provided, an optimum pressure (> 1 bar) was found due to an increase in both cavitation threshold and cavitation intensity when increasing pressure. While the ef...
10 trang | Chia sẻ: thucuc2301 | Ngày: 28/11/2020 | Lượt xem: 466 | Lượt tải: 0
Quy tắc làm việc trong phõng thí nghiệm Hóa họcCho 2 ml ancol etylic vào bình Vuyếc dung dịch 150ml, nhỏ từ từ 1,5 ml H2SO4 đặc vào ancol trong bình, đồng thời lắc đều. Đậy bình bằng nút có lắp phễu nhỏ giọt. Lắp ống sinh hàn ruột thẳng vào nhánh bình cầu, đuôi ống sinh hàn có ống nối cong dẫn vào bình hứng. Rót vào phễu chiết hỗn hợp gồm 30 ml ancol etylic và 4,9 gam axit benzoic, lắc nhẹ. ...
31 trang | Chia sẻ: yendt2356 | Ngày: 28/11/2020 | Lượt xem: 721 | Lượt tải: 0
Epitaxial-Like Growth of Solution-processed PbZr0.4Ti0.6O3 Thin Film on Single-crystal Nb-doped SrTiO3 Substrate - Hoang Ha4. Conclusion 200-nm-thick PZT ferroelectric thin films have been successfully deposited on Nb:STO(111) single-crystal substrate via solution process, like an epitaxial growth. X-ray diffraction results showed that only PZT(111) peak appeared when annealing at 450, 500, 550 and 600oC. SEM images described that whole PZT thin films fabricated had n...
9 trang | Chia sẻ: thucuc2301 | Ngày: 28/11/2020 | Lượt xem: 453 | Lượt tải: 0
