搜索结果: 1-15 共查到“工学 grade”相关记录28条 . 查询时间(0.074 秒)
REMOTE SENSING EXTRACTION OF STOPES AND TAILINGS PONDS IN AN ULTRA-LOW-GRADE IRON MINING AREA
Ultra-low-grade iron mining area remote sensing spectral and thermal characteristics stope and tailings pond
2018/5/15
With the development of economy, global demand for steel has accelerated since 2000, and thus mining activities of iron ore have become intensive accordingly. An ultra-low-grade iron has been extracte...
POST-MISSION QUALITY ASSURANCE PROCEDURE FOR SURVEY-GRADE MOBILE MAPPING SYSTEMS
MMS lidar accuracy trajectory errors system calibration quality assurance
2016/7/5
Mobile Mapping Systems (MMS) consist of terrestrial-based moving platforms that integrate a set of imaging sensors (typically digital cameras and laser scanners) and a Position and Orientation System ...
美标A588 Grade A耐候结构钢板试制开发
A588 Grade A 耐候钢 产品开发 力学性能 表面质量
2016/7/14
采用无Ni成分设计体系，配合后续控轧控冷工艺，组织了美标耐候低合金钢A588 Grade A的试生产。试生产过
程中，通过适当优化加热工艺，避免了钢板表面氧化铁皮清除不净的问题，最终生产出质量符合 ASTM A588/A588M—
2010标准要求的A588 Grade A耐候低合金钢板。
DEVELOPMENT OF CONVENIENT 3D MEASUREMENT USING CONSUMER GRADE DIGITAL CAMERA: THE 3DIVISION EXAMPLES
Close-range Photogrammetry Triplet images Calibration Software Digital Cameras 3D Modelling
2015/12/23
The authors have been concentrating on developing a convenient 3D measurement method using consumer grade digital cameras,and software “3DiVision” has been designed to perform convenient 3D measuremen...
Ubiquitous digital photogrammetry by consumer grade digital camera
Close range photogrammetry Self-calibration Consumer Grade Digital Camera Archaeology 3D modelling
2015/8/25
Convenient 3D measurement using consumer grade digital cameras are enormously expected from various application fields according to appearance of the high resolution digital cameras. In these circumst...
Zoom-dependent calibration for consumer grade-cameras
self calibration camera calibration lens distortion zoom lens
2015/8/24
A significant practical constraint currently applying to the adoption of consumer-grade digital cameras for photogrammetric measurement is the requirement to record images at fixed zoom and focus sett...
Evaluating At-Grade Rail Crossing Safety along the Knowledge Corridor in Massachusett
At-Grade Rail Crossing Safety Knowledge Corridor Massachusett
2014/10/22
Highway-rail grade crossings are safer than ever, but collisions between motor vehicles and trains persist. Some collisions could be prevented by actively maintaining such grade crossings, yet many at...
Evaluating the potential of consumer-grade smart cameras for low-cost stereo-photogrammetric Crop-Surface Monitoring
Crop Surface Monitoring Stereoscopic Multitemporal Agriculture Change Detection
2014/9/29
Crop-Surface-Models (CSMs) are a useful tool for monitoring in-field crop growth variability, thus enabling precision agriculture which is necessary for achieving higher agricultural yields. This cont...
Associate Professor Silvija Gradečak，Department of Materials Science and Engineering，Massachusetts Institute of Technology（图）
Associate Professor Silvija Gradeč ak Department of Materials Science and Engineering Massachusetts Institute of Technology
2014/9/11
Prof. Gradečak's research focuses on nano-photonics and electronics and is based on the synthesis, characterization and integration of low-dimensional systems. By taking the advantage of unique m...
Preparation and characterisation of food grade chitosan from housefly larvae
Musca domestica commercial applications chitin insect derivates
2014/2/25
The preparation and characterisation of food-grade chitosan from housefly larvae are reported. A refinement procedure was developed to remove larval mouth hooks from the primary chitosan product, whic...
The Influence of the Thickness of the Slab and Concrete Grade on Composite Floors
ultra shallow floor beam vibrations parametric study frequency
2010/8/17
A modern flooring system is the ComFloor Composite Floor Deck from Corus. This type of floor has many advantages involving cost, weight, construction speed, but also disadvantages regarding vibrations...
Analytical studies on transient rotating flow of a second grade fluid in a porous medium
transient rotating flow porous medium second grade fluid
2010/9/27
This article makes a mathematical analysis of transient rotating flow of an incompressible second grade fluid in a porous medium. The flow motion in the model is induced by a given but arbitrary inlet...
The physical modelling of a normalising rolling of plates of S460NL1 steel grade
Plastic forming Controlled rolling Plate rolling Physical simulation
2009/12/1
Purpose: The aim of the present work was to demonstrate that, in laboratory conditions and using a physical simulator
of metallurgical processes, it us possible to reflect the actual production proc...
Steady Three-Dimensional Flow of a Second Grade Fluid towards a Stagnation Point at a Moving Flat Plate
Second grade fluid Stagnation point Viscoelasticity Boundary layer
2009/10/12
The problem considered here is the steady three-dimensional flow of a second grade fluid near the stagnation point of an infinite flat plate moving parallel to itself with constant velocity. The basic...
Flow of a Second-Grade Visco-Elastic Fluid in a Porous Converging Channel
Second-grade fluid Converging channel Viscoelasticity Suction/Injection
2009/10/12
The problem dealing with the two dimensional and steady flow of a second-grade fluid in a converging channel has been analyzed. It is assumed that the fluid is injected into the channel through one wa...