搜索结果: 1-12 共查到“工学 subsurface”相关记录12条 . 查询时间(0.062 秒)
Survey of soil water distribution in a vineyard and implications for subsurface drip irrigation control
gravimetric water content Sentek Diviner spatio-temporal variability volumetric water content
2016/8/2
Controlling a subsurface drip irrigation system based on soil water monitoring is a very efficient way to supply grapevines with water for optimal thriving and high vintage quality. However, finding a...
Application of geophysical methods for monitoring of surface and subsurface changes of origin archaeological terrains &ndahs; case studies of sites in the Czech Republic
Geophysical method Non-destructive Archaeology Magnetometric measurement
2015/9/11
Geophysical methods could be used in wider scale for monitoring of changes of different archaeological terrains and types of
archaeological situations. Agriculture, afforestation or other changes of ...
3d Spatial Data Model Based on Quasi Tri-prism Volume and its Application in Subsurface Engineering
GIS Modeling Data Structures,
2015/7/6
3D spatial data model and modelling are the core of 3D GIS theory and applications. For this reason, a data model based on Quasi
Tri-Prism Volume (QTPV) has been presented in this paper. The QTPV def...
GIS based 3D visualization of subsurface and surface lineaments / faults and their geological significance, northern tamil nadu, India
GIS based 3D visualization Subsurface lineaments Surface lineaments Northern Tamil Nadu India
2014/12/15
The study area falls in the southern part of the Indian Peninsular comprising hard crystalline rocks of Archaeozoic and Proterozoic Era. In the present study, the GIS based 3D visualizations of gravit...
Subsurface impurities and vacancies in a three-dimensional topological insulator
Subsurface impurities vacancies three-dimensional topological insulator
2012/2/24
Using a three-dimensional microscopic lattice model of a strong topological insulator (TI) we study potential impurities and vacancies in surface and subsurface positions. For all impurity locations w...
Analysis of Propagation Behaviour of a Subsurface Crack by the Finite Element Method
Sonlu elemanlar metodu Gerilme lsiddet faktoru Clatlak yayilimi
2009/10/13
When contacting surfaces have relative motion, applied normal and tangential forces cause stresses on surfaces and subsurfaces. If these forces are applied cyclically, they cause crack propagation in ...
土壤质地对地下滴灌灌水器水力要素的影响（Effect of Different Textural Soils on Hydraulic Characteristics of Emitters under Subsurface Drip Irrigation）
地下滴灌 灌水器 土壤质地
2009/5/19
为研究不同质地土壤中灌水器水力要素的变化规律及其差异，选取灌水器工作压力、土壤容重和土壤初始含水率为因素，分别在粘土、壤土和砂土中采用混合水平均匀设计安排试验。试验结果表明，不同土壤中的灌水器出流规律一致：即当工作压力不变时，灌水器流量在灌水初期略大，而后减小并趋于恒定，这个变化过程仅1～2min；在相同压力下，地下滴灌灌水器流量比地表滴灌小5%～20%，压力越大，二者越接近；灌水器流量随工作压力...
Subsurface basement structure inferred from resistivity and gravity data around the Muramatsu active fault, the eastern margin of the Niigata sedimentary basin, central Japan
resistivity gravity basement inversion tectonics Muramatsu Fault
2009/4/13
In order to clarify the subsurface pre-Tertiary basement structure at the eastern margin of the Niigata plain, we carried out remote sensing, geological, electromagnetic and gravity surveys at Muram...
Wastewater Treatment Using Horizontal Subsurface Flow Constructed Wetland
Constructed Wetland nitrate-nitrogen
2009/3/18
The last few decades witnessed sharp focus on environment pollution and its impact on life in nature. Wetlands can be used for biological treatment of wastewater. Problem statement: Scarcity of water ...
Consideration of subsurface layer to evaluate site amplification effect in the response and limit strength calculation design method, the building standard law
building standard law enforcement order notification subsurface layer site amplification effect
2009/3/4
Buildings in Japan must be designed and constructed according to Building Standard Law, the Enforcement Order and the Notification by Ministry of Construction and the Ministry of Land, Infrastructure ...
Simulating Water Flow to a Subsurface Drain in a Layered Soil
Drain discharge finite element layered soil HYDRUS-2D
2009/1/13
The objective of the work presented in this paper was to simulate drain flow into subsurface drainage pipes for a layered soil profile using a finite element based HYDRUS-2D model. Data from the drai...
Water Application Uniformity of a Subsurface Drip Irrigation System at Various Operating Pressures and Tape Lengths
Subsurface drip irrigation emitter discharge uniformity coefficient emitter performance
2009/1/9
Subsurface irrigation has been the focus of attention mainly because of its low evaporation rate and deep percolation losses. Uniformity of water applications and its stability, however, are still a m...