Báo cáo nghiên cứu khoa học: "NUMERICAL MODEL OF SINGLE PHASE TURBULENT FLOWS FOR CALCULATION OF PRESSURE DROP ALONG GAS PIPELINES " doc

... calculating pressure drop along the associated gas pipeline is constructed in Matlab environment, the software interface is introduced in Fig. 3. Figure 3. Interface of pressure drop calculation ... 0.00785 0.7452 0.01235Real Pressure at 112971m of the end of pipeline is 6970 kPa Table 3.5. Summary of numerical results of oulet pressure p2 Results of outlet pressure and its differences ... 1. Gas pipeline arrangement scheme Calculating pressure drop along pipeline is performed with the following steps: 1. Starting with the known pressure, p1 , at L1 2. Estimating a pressure...

Báo cáo nghiên cứu khoa học: " DYNAMIC MODEL AND CONTROL FOR BIPED ROBOT" pps

... only walking with Single phase. However it becomes more difficult when controlling a biped Double phase than that of the Single phase. Motion of a biped robot during Double phase can be described ... obtain an accurate estimation of physical parameter of complicated models with the interaction of parts of a robot and under the force of gravity. Besides, the effect of noise loading capacity by ... accurate estimation of dynamics model or to simplify the model. In simplification of the model, we can ignore some aspects, regardless of dynamics loading capacity. The interaction of parts and pre...

Báo cáo nghiên cứu khoa học " KẾT QUẢ BƯỚC ĐẦU SỬ DỤNG BÃ SẮN Ủ CHUA ĐỂ VỖ BÉO BÒ THNT " doc

... xã hội, môi trường. TÀI LIỆU THAM KHẢO 1. AOAC (1990). Association of Official Analytical Chemists, Official methods of analysis, 15th edition Vol. 1. (AOAC, Washington, DC). 2. Ba, Nguyen ... Ngoan, CM Leddin and PT Doyle (2007a) Cassava bagasse silage can be used as a supplement for cattle fed rice straw. Asian-Australasian Journal of Animal Science (Submitted) 3. Ba, Nguyen Xuan, ... and PT Doyle (2007b) Amount of cassava powder fed as a supplement affects feed intake and live weight gain in Laisind cattle in Vietnam. Asian-Australasian Journal of Animal Science (Submitted)...

Báo cáo nghiên cứu khoa học " Enhancing smallholders’ access to Agribusiness in the Central region of Viet Nam " potx

... capacity of the Faculty of Economics and DevelopmentStudies (FEDS) at Hue College of Economics(HCE) so thatthey can act as a strategicresource for rural development in the Centralregions of Vietnam. ... QuangNgai; ii) Development of training courses for them and the development of an agribusinessprogram curriculum at HCE; iii) Delivery of thetraining courses for smallholders and provincialagencies ... sectors etc;Survey of the other three project provinces;Analysis of data gathered and development of farm agribusiness training courses for stakeholders;Delivery of training courses–developingmaster...

Báo cáo nghiên cứu khoa học: "ĐỀ XUẤT PHÂN LOẠI CÁC QUÁ TRÌNH DỊCH CHUYỂN TRỌNG LỰC ĐẤT ĐÁ TRÊN SƯỜN DỐC, MÁI DỐC VÙNG MIỀN NÚI" doc

... ra hoặc chưa được nghiên cứu kỹ ở khu vực lãnh thổ miền núi sẽ không được định danh và đưa vào bảng phân loại các QTDCTLĐĐ trên sườn dốc, mái dốc; - Với mức độ nghiên cứu hiện tại các quá ... nhà nghiên cứu như: A. P. Pavlov (1903), K. I. Bogdanovits (1911), F.P.Xavarenxky đề nghị (1934), A. P. Nifantov (1935), Sharpe C. FS (1938), N. V. Rodionov (1939), I. V. Popov, Ban Nghiên cứu ... tiêu chí phân loại (cơ sở khoa hoạc) rõ ràng, nhất quán và đặc trưng nhất cho đẳng cấp phân loại tương ứng cũng như thuận tiện trong thống kê, mô tả, tổng hợp và báo cáo; - Thuật ngữ sử dụng...

Báo cáo nghiên cứu khoa học: "MÔ HÌNH HÓA VÀ MÔ PHỎNG QUÁ TRÌNH TẠO MÀNG Al2O3 BẰNG PHÚN XẠ MAGNETRON" doc

... cơng cụ hữu hiệu để hồn thiện cơng việc nghiên cứu kỹ thuật phún xạ và sự hình thành màng. MODELING AND SIMULATION OF THE MAGNETRON SPUTTERING PROCESS FOR AL2O3 THIN FILM COATING Giang ... (2)University of Natural Sciences, VNU-HCM (3)VNU-HCM ABSTRACT: Al2O3 used for manufacturing the catalytic converters is applied as a component of porous ceramal or in the form of films. ... geometric parameters. The calculation is executed in the Matlab platform both in the command line and the graphic user interface regim for the illustration. The results of this work included (a)...

Báo cáo nghiên cứu khoa học: " AN APPROACH TO THE EQUIVALENCE PRINCIPLE AND THE NATURE OF INERTIAL FORCES" pptx

... viewpoint: we see clearly Newton’s viewpoint of inertial forces by means of his discussion of the rotation of water basin. Newton believed that inertial forces only existed in systems which were ... acceleration of system. 4.DISCUSIONS From above results we find that Newton, Mach and Einstein‘s viewpoints of inertial forces are satisfied in this model. Firstly, in this model inertial forces ... we prove that inertial forces which exist in non inertial systems of reference are just gravitational forces. Thus the Equivalence Principle is a consequence of this model. 1.INTRODUCTION....

Báo cáo nghiên cứu khoa học: "Application SDOF model to seismic base sliding analysis of concrete gravity dams subjected to earthquake load" pot

... upstream face of the dam, the uplift force acting at the base of the dam and the earthquake load. The uplift force was computed using trapezoidal shape of uplift pressure with 29m of water pressure ... frequency range of most earthquakes. Therefore, the use of a rigid dam model is reasonable simplification for dams of thi height. References 1. A. K. Chopra. Earthquake behaviour of reservoir-dam ... rigid foundation. It is called single degree of freedom method (SDOF). As the verification, results of present study are compared with results of experimental model carried out by MIR and Taylor...

Báo cáo nghiên cứu khoa học: " BUILDING A GOOD IMAGE FROM TWO COLOR IMAGES OF CAMERA MODEL USING GA AND DISCRETE WAVELET TRANSFORM" pptx

... that each is a set of data. Then, these two set of data are combined to form a new better set of data. In practice, there are many factors affecting the quality of images. Therefore, multi-resolution ... decompose two sets of data before fusing and forming a new set of data. DWT is one of popular tools used in MRA by using low-pass and high-pass filter [6, 7, 8]. Consider ω is DWT performance, the ... disparity. Therefore, we use equation 2 to determine the degree of correlation instead of equation 1. Yet it takes a mount of cost to compute, so we applied GA [14] to reduce the cost of computing...

Báo cáo nghiên cứu khoa học: " AN APPROACH TO THREE CLASSICAL TESTS OF THE GENERAL THEORY OF RELATIVITY IN THE VECTOR MODEL FOR GRAVITATIONAL FIELD" docx

... equivalent along the axis of abscissas. In our example, elements of length decrease along the positive direction of axis and increase along the negative direction. It should be noted that the laws of ... clock along the orbit of the particle.But when the ruler and clock move along the orbit in the gravitational field, the length of ruler and rate of the clock vary at each point. Because of this ... of inertial forces) is non- Euclidean. 3. MOTION OF BODIES IN A GRAVITATIONAL FIELD Consider a particle moving freely under the influence of purely gravitational forces. Because inertial forces...

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