parked wind loading maximum exposure
The effect of wind loading on the jib of a luffing tower crane
Ngày tải lên :
12/10/2016, 18:17
... from wind loading below the maximum in service wind speed and at jib elevations within the normal maximum and minimum radius quoted by the manufacturer Uncontrolled movement took place when the wind ... particularly significantly on the calculated wind loads 5.2.1.4 Wind Loading an Inclined Jib All four standards used in the wind loading calculations assume that the wind blows horizontally If the jib ... difference exists if the wind loading was taken to act at the centre of area instead of the centre of gravity of a particular jib section The calculated wind loading for the different wind speeds and...
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Optimal placement of horizontal - and vertical - axis wind turbines in a wind farm for maximum power generation using a genetic algorithm
Ngày tải lên :
05/09/2013, 17:03
... and VAWT wind farms, the size of the farm considered is 50D x 50D and a wind with uniform speed of 12 m/s is considered Since each column of turbines has a width of 5D and the ground wind speed ... for VAWT wind farm using GA Figure Optimal layout of VAWT in a 50D x 50D wind farm Conclusion and future work The results shown in section demonstrate that the layout optimization of a wind farm ... [1] Mosetti G., Poloni C., Diviacco B Optimization of Wind Turbine Positioning in Large Wind Farms by Means of a Genetic Algorithm J of Wind Engineering and Aerodynamics Vol 51, pp 105-116, 1994...
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Báo cáo y học: " Preparation of RGD-modified Long Circulating Liposome Loading Matrine, and its in vitro Anti-cancer Effects"
Ngày tải lên :
26/10/2012, 08:57
... liposome loading matrine (RGD-M-LCL) was complete Some RGD-M-LCL in a drug-lipid ratio of 0.1 was stored at 4°C to determine its stability, particle size and the efficiency of drug -loading http://www.medsci.org ... cancer therapy Materials and Methods Preparation of RGD-modified long circulating liposome (LCL) loading matrine (RGD-M-LCL) Lipids composed of HSPC (Lipoid, Germany), cholesterol (Lipoid, Germany), ... microscope (Tecnai-co, Philip, the Netherlands) to evaluate their shape Encapsulation efficiency and loading- drug stability of the RGD-M-LCL Matrine solutions at different concentrations (1.95 μg/mL,...
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Mô hình maximum entropy và ứng dụng
Ngày tải lên :
23/11/2012, 15:03
... ĐẠI HỌC QUỐC GIA HÀ NỘI TRƯỜNG ĐẠI HỌC CÔNG NGHỆ Trần Quang Dũng MÔ HÌNH MAXIMUM ENTROPY VÀ ỨNG DỤNG KHOÁ LUẬN TỐT NGHIỆP ĐẠI HỌC HỆ CHÍNH QUY Ngành: Công Nghệ Thông Tin ... Linear Least Squares Fit [Yang & Chute, 1994], Support Vector Machine [Joachims, 1998] , 1998], Maximum Entropy [Berger, 1996 Della Pietra, 1997] Các phương pháp dựa vào xác suất thống kê thông ... hơn, miêu tả loạt tập đạt vào P hình sau: 23 Hình 3.1: Lựa chọn đặc trưng (trích dẫn: trang 12 A Maximum Entropy Approach to Natural Language Processing) 3.3.2 Cơ sở lựa chọn đặc trưng Cơ sở thủ...
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MÔ HÌNH MAXIMUM ENTROPY
Ngày tải lên :
25/04/2013, 11:56
... ĐẠI HỌC QUỐC GIA HÀ NỘI TRƯỜNG ĐẠI HỌC CÔNG NGHỆ Trần Quang Dũng MÔ HÌNH MAXIMUM ENTROPY VÀ ỨNG DỤNG KHOÁ LUẬN TỐT NGHIỆP ĐẠI HỌC HỆ CHÍNH QUY Ngành: Công Nghệ Thông Tin ... Linear Least Squares Fit [Yang & Chute, 1994], Support Vector Machine [Joachims, 1998] , 1998], Maximum Entropy [Berger, 1996 Della Pietra, 1997] Các phương pháp dựa vào xác suất thống kê thông ... quan hơn, miêu tả loạt tập đạt vào P hình sau: Hình 3.1: Lựa chọn đặc trưng (trích dẫn: trang 12 A Maximum Entropy Approach to Natural Language Processing) 3.3.2 Cơ sở lựa chọn đặc trưng Cơ sở thủ...
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unit 11: wind power
Ngày tải lên :
22/06/2013, 01:25
... Group class 11A7 This windswept island nation has enormous wind, wave and tidal power: more than enough to meet all of our energy needs many times over Group class 11A7 Wind power can be used ... concept which uses a modular wind turbine that is small enough to sit on a the roof of house Group class 11A7 We can supply wind power plants for all applications Our wind power plants can either ... Zealand's Tararua Wind Power project has 48 Danish-built Vestas turbines able to generate 32 megawatts, enough to supply power to 15,000 homes combined Rows of wind turbines at Altamont Pass wind farm...
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8 things your must do to build maximum muscle
Ngày tải lên :
05/08/2013, 09:28
... can While training to failure isn’t necessary for growth to occur, it IS necessary if you want maximum growth to occur in the shortest period of time possible ... training for muscular size and strength, you can take this basic logic and toss it right out the window, down the street and around the corner! The key thing to realize is that your muscles will...
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NĂNG SUấT, CHấT LƯợNG MộT Số GIốNG CÂY THứC ĂN GIA SúC (Pennisetum perpureum, Panicum maximum, Brachiaria ruziziensis, Stylosanthes guianensis) TRồNG TạI ĐắK Lắk
Ngày tải lên :
28/08/2013, 14:14
... nhiên Đắk Lắk - Giống cỏ: Các giống cỏ nghiên cứu bao gồm giống cỏ nhập ngoại: Cỏ Ghi nê (Panicum maximum TD 58), cỏ Voi (Pennisetum purpureum), cỏ Ruzi (Brachiaria ruziziensis) v cỏ Stylo (Stylosanthes...
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A NEW CLASSIFICATION SYSTEM FOR URBAN STORMWATER POLLUTANT LOADING: A CASE STUDY IN THE SANTA MONICA BAY AREA
Ngày tải lên :
05/09/2013, 09:08
... land uses are high pollutant loading areas, and transportation land use is a medium loading area These results imply that classification system for stormwater pollutant loading should be developed ... pollutant loading maps of all water quality parameters show that the low pollutant emitting areas correspond to open land use due to its low RC associated with low imperviousness Many pollutant loading ... mass emissions pollutant loading map of TKN shows single-family residential land use as well as transportation land use is high pollutant emitters However, for NO2&3 and SP loading, commercial, public,...
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Evaluation of Loading Rate of Nitrogen from Rice-Paddies by Small Watershed Method
Ngày tải lên :
05/09/2013, 09:38
... Takeda I., Kunimatsu T., Kobayashi S and Maruyama T (1990) Storm Runoff Loadings from a Paddy Field Area – Studies on pollution loadings from a paddy field area ( I )., Trans Jpn Soc Irrig Drain Reclam ... and Maruyama T (1991) Pollutants Balance of a Paddy Field Area and its Loadings in the Water System – Studies on pollution loadings from a paddy field area ( II )., Trans Jpn Soc Irrig Drain Reclam ... plowings The concentration of TN increased just at the beginning of the drainage, and reached the maximum of 3.33 mg l-1 at around the drainage peak Then, the concentrations decreased, as the drainage...
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Optimal design of PEM fuel cells to generate maximum power: A CFD study
Ngày tải lên :
05/09/2013, 14:58
... 6, 2011, pp.953-962 Naturally, the maximum temperature occurs, where the electrochemical activity is the highest, which is near the cathode side inlet area The maximum temperature is more than ... the optimal conditions to generate maximum power (case 18) Figure shows the distribution of the temperature inside the MEA during the cell operating to generate maximum power (the operating conditions ... x=10 mm for optimal operating conditions of maximum power (Table 3) The figure illustrates the effect of stresses on the MEA The results show that the maximum displacement is 2.6 micro m This value...
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Atmospheric icing on large wind turbine blades
Ngày tải lên :
05/09/2013, 14:58
... atmospheric ice along a large wind turbine blade and analyses the ice distribution to identify the most affected areas due to icing Numerical setup The NREL MW wind turbine’s blade radius used ... simulation included two major parameters, the relative wind speed (Vrel) and the angle of attack (α) These parameters depend upon the free stream wind speed (V∞ ) , the axial and tangential induction ... angle of the relative wind a= ⎛ cos β ⎞ ⎜1 + ⎜ σ C sin β ⎟ ⎟ r l ⎝ ⎠ σ r Cl ~ (1 − a ) a= 4λ r cos β (3) Blade element momentum theory (BEM) is commonly used in analysis of wind turbine rotors...
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Economic feasibility analysis of a wind farm in Caldas da Rainha, Portugal
Ngày tải lên :
05/09/2013, 14:59
... Aveiro p 176 [3] NWCC Wind Energy Costs NWCC Wind Energy Series 1997 [cited 2009 February 2]; No.11.:[National Wind Coordinating Collaborative] Available from: http://www.nationalwind org ISSN 2076-2895 ... Report 2007 - IEA WIND ENERGY Annual Report 2007 2007 [cited 2010 May 12]; International Energy Agency] Available from: http://www.ieawind.org/ AnnualReports_PDF/2007/2007%20IEA%2 0Wind% 20AR.pdf BCP ... turbine Swept area per turbine Availability Total losses Capacity factor Wind resource assessment Localization Average wind speed (10m) Air temperature Atmospheric pressure Annual energy output...
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Power generation from wind turbines in a solar chimney
Ngày tải lên :
05/09/2013, 14:59
... the wind by installation of wind turbines inside them Although a simple model (actuator disc model) of a wind turbine has been employed in the CFD study, the estimates of Cp and generated wind ... 462 Wind Energy [W] 502 502 502 502 502 Cp 0.59 0.67 0.75 0.83 0.92 In Table 5, it should be noted that the available wind power in this case is less compared to that in Tables and because the wind ... power from the wind by installation of wind turbines inside them The power from 1kW (for a silo ~ 12 ft diameter) to kW (for a silo of ~ 18 ft diameter) can be obtained from class winds of velocity...
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Performance analysis of wind turbine systems under different parameters effect
Ngày tải lên :
05/09/2013, 16:10
... losses in wind turbine, ρ = air density in kg/m3, A = swept area in m2, Cp =power coefficient of wind turbine, V = wind speed in m/s Mechanical power of wind turbine is directly related to the wind ... pioneer of wind turbine technology He found out that we can only harvest, at maximum, 16/27 or 0.593 of the power from the wind This number is called the Betz coefficient and is the theoretical maximum ... NY-WSR1204 wind generator has a blade of 0.8 m, the mechanical power is 700w and electrical output power is equal 600w 2.2 Wind speed The mechanical power (P) is harnessed with the wind speed (V) The wind...
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Assessment potential wind energy in the north area of Iraq
Ngày tải lên :
05/09/2013, 16:10
... average wind speed, S.D is Standard deviation of wind data c= X ⎛ Γ⎜ + ⎝ 1⎞ ⎟ k⎠ (4) 2.2 Wind energy potential At a wind speed u, the available energy per unit area perpendicular to the wind stream ... instantaneous wind speed but Usually wind assessment is based on monthly mean wind speeds, because most of the wind system design calculations are performed on a monthly basis and that the wind has ... 40 30 30 20 20 10 10 wind speed (m/s) Best-fit Weibull distribution (k=3.09, c=3.34 m/s) 0 wind speed frequency for July month (1980-2011) WIND SPEED (m/s) WIND SPEED (m/s) wind speed frequency...
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Economic metrics for wind energy projects
Ngày tải lên :
05/09/2013, 16:30
... countries and projects Wind turbines are useless without adequate wind resource The correct location of each individual wind turbine is crucial to the economy of any proposed wind energy In fact, ... curves of wind turbines and wind regime estimates is reduced by a number of factors, including losses in matrix production (occurring due to wind turbines shadowed each other within the wind farm), ... are designed to generate maximum power at certain wind speed This power is known as the rated power and wind speed at which it is reached is called the rated speed of the wind The speed is adjusted...
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Tài liệu tiếng anh Điện tử công suất mạch MERS Improved wind power conversion system using magnetic energy recovery switch MERS
Ngày tải lên :
15/10/2013, 16:11
... current Iu The maximum output is 1.2 kW in the system without MERS, while the maximum output is kW or more in the system with MERS These data indicate that an instantaneous strong wind power can ... output power and efficiency of the wind power system Therefore, it is expected that the efficiency improvement of the power conversion system and the miniaturization of wind turbine generator can be ... proposed system between with MERS and w/o MERS A Wind turbine simulator Figure shows a schematic diagram of our small-scale experimental system of wind power generation with a synchronous generator...
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