搜索结果: 1-13 共查到“工学 gradients”相关记录13条 . 查询时间(0.078 秒)
REPRESENTATION OF GRADIENTS OF A SCALAR FIELD ON THE SPHERE USING A 2D FOURIER EXPRESSION
2D Fourier series gradients representation coefficients D-functions spectral transfers
2016/1/18
Representation of data on the sphere is conventionally done using spherical harmonics. Making use of the Fourier series of the Legendre function in the SH representation results in a 2D Fourier expres...
Effects of gradients of the electron density on Earth-space communications
Electron density space
2015/9/14
This paper is a review of the main results achieved in the framework of COST 271 Action Working Group 4, under the activities of the Work Package 4.4. The first topic treated deals with the influence ...
Three gradients and the perception of flat and curved surfaces
Three gradients perception flat curved surfaces
2015/8/13
Researchers of visual perception have long been interested in surfaces. Most psychologists have been interested in the perceived slant of a surface and in the gradients that purportedly specify it. Sl...
Model predictive control for wind power gradients
wind power ramps electrical grid integration disturbance rejection model predictive control convex optimization wind power control energy storage power output optimization
2015/8/7
We consider the operation of a wind turbine and a connected local battery or other electrical storage device, taking into account varying wind speed, with the goal of maximizing the total energy gener...
Using WAAS Ionospheric Data to Estimate LAAS Short Baseline Gradients
WAAS Ionospheric Data Estimate LAAS Short Baseline Gradients
2015/6/26
The Local Area Augmentation System (LAAS) is intended to provide real-time differential GPS corrections with the high accuracy, availability, and integrity required for Category II/III landings. In or...
The Effects of Large Ionospheric Gradients on Single Frequency Airborne Smoothing Filters for WAAS and LAAS
Large Ionospheric Gradients Single Frequency Airborne Smoothing Filters WAAS LAAS
2015/6/26
Both WAAS and LAAS receivers use carrier-smoothing filters to reduce the effects of multipath and thermal noise at the aircraft. For the majority of users this reduces the magnitude of the errors and ...
Vernal Pool Vegetation and Soil Patterns Along Hydrologic Gradients in Western Massachusetts
soil organic matter soil texture
2014/11/26
This study looks at relationships along the hydrologic gradient between and within six pools; including the vegetation community, soil characteristics and hydrology. Pool conditions were monitored wee...
Electrohydrodynamics within electrical double layer in a pressure-driven flow in presence of finite temperature gradients
Electrohydrodynamics electrical double layer pressure-driven flow Fluid Dynamics
2012/5/17
A wide spectrum of electrokinetic studies is modelled as isothermal ones to expedite analysis even when such conditions may be extremely difficult to realize in practice. As a clear and novel departur...
OPTICAL AND SAR IMAGERY FOR MAPPING VEGETATION GRADIENTS INBRAZILIAN SAVANNAS: SYNERGY BETWEEN PIXEL-BASED AND OBJECT-BASED APPROACHES
Indeterminate boundaries SegSAR CART ALOS-PALSAR Landsat-TM Cerrado Biome
2014/6/12
The objectives of this study were (a) to evaluate the suitability of SAR imagery for discriminating savanna physiognomies, (b) to combine SAR and optical imagery for achieving improved accurac...
Granularity-tunable Gradients Partition (GGP) Descriptors for Human Detection
Granularity-tunable Gradients Partition Descriptors Human Detection
2010/12/20
This paper proposes a novel descriptor, granularitytunable gradients partition (GGP), for human detection. The concept granularity is used to define the spatial and angular
uncertainty of the line se...
Reverse Pressure Gradients Across the Teat Canal Related to Machine Milking
machine milking everse pressure gradients teat canal
2009/1/22
Miniature pressure transducers were inserted through the udder cistern wall of 10 cows and placed into the teat cistern and, in addition, beneath the teat end. Data were sampled every millisecond and ...
Granularity-tunable Gradients Partition (GGP) Descriptors for Human Detection
Granularity-tunable Gradients Partition GGP Descriptors Human Detection
2013/7/16
This paper proposes a novel descriptor, granularitytunable gradients partition (GGP), for human detection.The concept granularity is used to define the spatial and angular uncertainty of the lin...
Photonic crystal device sensitivity analysis with Wannier basis gradients
Photonic crystal device sensitivity analysis Wannier basis gradients
2015/8/11
We present a powerful sensitivity analysis method for devices in a photonic crystal. The method is based on a Wannier basis field expansion and efficient matrix analysis techniques for finding eigenva...