搜索结果: 16-30 共查到“工学 Expansion”相关记录43条 . 查询时间(0.14 秒)
EXPANSION OF DYNAMIC SIMULATION MODEL FOR A DISTRIBUTED GENERATOR UNINTENTIONAL ISLANDING DETECTION SCHEME
islanding
2015/1/20
The interconnection of distributed resources requires specific voltage regulation, monitoring, protective relaying, power quality, and islanding detection. For this reason IEEE established standard IE...
Dynamics and forecasting of population growth and urban expansion in Srinagar City – A Geospatial Approach
Urban Sprawl Population Regression Temporal
2014/12/15
The urban areas of developing countries are densely populated and need the use of sophisticated monitoring systems, such as remote sensing and geographical information systems (GIS). The urban sprawl ...
QUANTITATIVE ANALYSIS OF URBAN EXPANSION IN CENTRAL CHINA
Urban Landscape Dynamic Changes Metropolitan Areas Centre China
2014/4/29
Quantifying urban expansion forms is important to understanding regional urbanization processes and urban planning. For this purpose, conventional landscape indices are commonly used for quantitative ...
EXPANSION OF MORAINE-DAMMED GLACIAL LAKE IN THE CENTRAL HIMALAYAS FROM 1977 TO 2009
Glacial lake Himalayas Growth rate
2013/9/2
The glacial lakes from 1977 to 2009 in the Nepal–China border region were investigated using satellite imagery. 247 ice-contact or ice-proximal glacial lakes
with total area of 126.3km2in the study ...
Effective field theory for hydrodynamics: thermodynamics, and the derivative expansion
Effective field theory hydrodynamics thermodynamics derivative expansion
2011/8/19
Abstract: We consider the low-energy effective field theory describing the infrared dynamics of non-dissipative fluids. We extend previous work to accommodate conserved charges, and we clarify the mat...
A spherical cavity expansion model for penetration of ogival-nosed projectiles into concrete targets with shear-dilatancy
Spherical cavity expansion Shear dilatancy Ogival-nosed projectile Concrete target Penetration Perforation
2012/2/28
A dynamic spherical cavity-expansion penetration model is suggested herein to predict the penetration and perforation of concrete targets struck normally by ogivalnosed projectiles. Shear dilatancy as...
Practical Method of Conical Cam Outline Expansion
oscillating follower conical cam 3D expansion polar coordinates curve equation
2011/8/3
Conical cam mechanism has been widely used in modern machinery and equipment. However, the commonly used planar expansion methods for the design of spatial cam contour produce significant errors, beca...
Comparison of Expansion During Fermentation on Medium-Chain Triacylglycerols Oil-Based and Butter Fat-Based Doughs
Dough medium-chain triacylglycerols oil-based fermentation
2010/9/30
Expansion during fermentation on Medium-Chain Triacylglycerols (MCT) oil-based doughs
compared to butter fat-based doughs were studied, and the mechanism of fermentation accelerator of MCT oilbased i...
Derivation of a second-order model for Reynolds stress using renormalization group analysis and the two-scale expansion technique
Turbulent modeling Renormalization group Two-scale expansion Reynolds stress transport equation Second-order model
2012/2/29
With the two-scale expansion technique proposed by Yoshizawa, the turbulent fluctuating field is expanded around the isotropic field. At a low-order two-scale expansion, applying the mode coupling app...
Digital Phase Estimation Method based on Karhunen-Loève series expansion for Coherent Phase Diversity Detection
Optical communications Coherent communications Homodyning
2015/6/4
A novel phase estimation method for coherent systems is presented and demonstrated.It outperforms 5.5 times the phase noise and spectral width tolerance respect to the other methods.
Taylor Expansion of Surface Potential in MOSFET: Application to Pao-Sah Integral
Taylor Surface Potential MOSFET Pao-Sah Integral
2010/12/3
We propose a simple model, derived from Pao-Sah theory, valid in all modes from weak to strong inversion, to calculate the drain current in Metal Oxide Semiconductor Field Effect Transistor (MOSFET). ...
Demand Responsive Route Design: GIS Application to Link Downtowns with Expansion Areas
Demand Responsive Route Design GIS Link Downtowns Expansion Areas
2009/10/16
The movement of residential locations to suburban areas to obtain cheaper land
results in increasing mobility and infrastructure problems. One of the important
infrastructures is transportation, whi...
EFFECT OF PRANDTL NUMBER ON HEAT TRANSFER CHARACTERISTICS IN AN AXISYMMETRIC SUDDEN EXPANSION: A NUMERICAL STUDY
turbulence Prandtl number heat transfer
2009/10/14
Using the standard k-e turbulence model, an incompressible, axisymmetric turbulent flow with a sudden expansion was simulated. Effect of Prandtl number on heat transfer characteristics downstream of t...
Large-Scale Cross-Media Retrieval of WikipediaMM Images with Textual and Visual Query Expansion
Image retrieval textual query expansion query-dependent visual concept detection cross-media re-ranking.
2013/7/16
In this paper, we present our approaches for the WikipediaMM task at ImageCLEF 2008. We first experimented with a text-based image retrieval approach with query expansion, where the extension terms we...
挤压膨化后纤维降解对大豆水酶法提油率的影响（Effect of Cellulose Degradation on Soybean Oil Extraction Yield through Extrusion and Expansion Processing）
挤压 膨化 提油率 水酶法 纤维降解 响应面分析
2010/2/26
在单因素试验和挤压膨化机稳定工作基础上，采用响应曲面设计研究了挤压膨化工艺参数对水酶法提取大豆油脂得率与纤维降解率的影响。利用SAS软件建立了数学模型，并对各因素及交互作用进行了分析。结果表明：当模孔孔径为20mm、物料含水率为14.5%、螺杆转速为105r/min、套筒温度为90℃时，总油提取率最优值为93.02%±0.29%。当模孔孔径为18mm、物料含水率为15%、螺杆转速为100r/min...