TRI THỨC 17

Authors:  Tran, Vinh Thang Do, Trung Kien Keywords:  DAQ-data acquisition;data logger;remote monitoring system Issue Date:  2014 Publisher:  H. : ĐHQGHN Series/Report no.:  Vol. 30;No. 2 (2014) Abstract:  In this paper, we proposed a design and implementation of a multi-parameters data logging and remote monitoring system for investigating both of electrical parameters and physical ones for indoor and outdoor environments. The task of logging and monitoring parameters are temperature, relativity light intensity and nineteen electrical parameters with storage and transmission of this information in the form cloud storage service to the user’s computer over internet in real-time for in-situ or further analysis. Due to industrial data acquisition modules, this system is easy to build with an expandable capability and enduring stability. Also a large of logged data can be measured by using this system with high accuracy and they are able to obs...

Authors:  Luu, Van Thiem Le, Tuan Tu Pham, Duc Thang Keywords:  PC template;CoNiP nanowires;magnetic properties and electrodeposition Issue Date:  2014 Publisher:  H. : ĐHQGHN Series/Report no.:  Vol. 30;No. 2 (2014) Abstract:  CoNiP nanowire arrays were fabricated by electrodeposition method into polycarbonate (PC) templates at different pH values. It is obvious that the crystal structure of the CoNiP nanowires depends on the pH values of electrolyte. The XRD results show that crystal structure of the CoNiP nanowires is hcp structure and the intensity of the hcp (002) increased enhances as solution pH=3.5. Magnetic measurements indicate that CoNiP nanowires show a transition from soft to hard magnetic properties with pH values from 2.0 to 3.5 and the maximum coercivity is 1630 Oe. Description:  p. 54-58 URI:  http://repository.vnu.edu.vn/handle/VNU_123/56069 ISSN:  2588-1124 Appears in Collections: Mathematics and Physics ...

Authors:  Michael R. Butler, Templeton David Keywords:  Wastewater treatment;Xử lý nước thải Issue Date:  2011 Publisher:  bookboon.com Abstract:  This book provides an introduction to the fundamental concepts and equations that underlie the engineering processes in wastewater treatment. Topics include preliminary treatment, sedimentation, biological treatment, nutrient removal, disinfection, and sludge treatment. Also discussed are wastewater management issues in developing countries and emerging concerns and trends in wastewater treatment in developed countries. Description:  80 p. URI:  http://repository.vnu.edu.vn/handle/VNU_123/23681 ISBN:  9788776818432 Appears in Collections: Tài nguyên giáo dục mở (OER)

Authors:  Derek, Atherton Keywords:  Nonlinearity in control systems Issue Date:  2011 Publisher:  bookboon.com Abstract:  The book is concerned with the effects of nonlinearity in feedback control systems and techniques which can be used to design feedback loops containing nonlinear elements. After a short introductory chapter on nonlinearity and its possible effects the use of phase plane methods for nonlinear second order systems is discussed. URI:  http://repository.vnu.edu.vn/handle/VNU_123/23684 ISBN:  9788776817909 Appears in Collections: Tài nguyên giáo dục mở (OER)

Authors:  Đỗ, Công Định Keywords:  Phật giáo Issue Date:  2005 Publisher:  Viện Nghiên cứu Phật học Việt Nam Description:  Tạp chí Nghiên cứu Phật học. Số 2. Năm 2005. TNS032 URI:  http://repository.vnu.edu.vn/handle/VNU_123/55213 Appears in Collections: Nghiên cứu Phật học và Phật hoàng Trần Nhân Tông (LIC)

Keywords:  Chùa;Lễ hội;Văn hóa phật giáo Issue Date:  2005 Publisher:  Viện Nghiên cứu Phật học Việt Nam Description:  Tạp chí Nghiên cứu Phật học. Số 2. Năm 2005. TNS033 URI:  http://repository.vnu.edu.vn/handle/VNU_123/55214 Appears in Collections: Nghiên cứu Phật học và Phật hoàng Trần Nhân Tông (LIC)