搜索结果: 1-15 共查到“工学 principle”相关记录36条 . 查询时间(0.132 秒)
上海交通大学自动控制原理英文课件Chapter5-1 Principle of Automatic Control
上海交通大学 自动控制原理 英文课件 Chapter5-1 Principle of Automatic Control
2019/11/14
上海交通大学自动控制原理英文课件Chapter5-1 Principle of Automatic Control。
HYPERSPECTRAL RESOLUTION ENHANCEMENT USING HIGH-RESOLUTION IMAGERY WITH WAVELET PACKAGE ALGORITHM AND OPTIMAL INDEX PRINCIPLE
fusion Hyper spectral Processing Imagery Matching
2015/12/31
In this paper, aiming at image displaying and considering the characteristics of hyperspectral data and the requirements of practical application, a new hyperspectral image fusion method is proposed. ...
BUILDING RECONSTRUCTION BASED ON MDL PRINCIPLE FROM 3-D FEATURE POINTS
Reconstruction Urban Three-dimensional Method Building
2015/3/24
For 3-D building reconstructions of urban areas, we present a fully automatic shape recovery method that uses 3-D points acquired
from aerial image sequences. This paper focuses on shape recovery of...
西北工业大学操作系统课件 Principle of Computer Operating System
西北工业大学 操作系统 课件 Principle of Computer Operating System
2014/8/20
西北工业大学操作系统课件 Principle of Computer Operating System。
Caltech researchers have found a way to make measurements that go beyond the limits imposed by quantum physics.Today, we are capable of measuring the position of an object with unprecedented accuracy,...
Analytic Properties of Two-Photon Scattering Matrix in Integrated Quantum Systems Determined by the Cluster Decomposition Principle
Two-Photon Scattering Matrix Integrated Quantum Systems Determined
2015/8/7
Analytic Properties of Two-Photon Scattering Matrix in Integrated Quantum Systems Determined by the Cluster Decomposition Principle.
Markov processes follow from the principle of Maximum Caliber
principle Maximum Caliber Markov
2011/9/14
Markov models are widely used to describe processes of stochastic dynamics. Here, we show that Markov models are a natural consequence of the dynamical principle of Maximum Caliber. First, we show tha...
First-principle electronic structure calculations within real-space mesh framework: Applications to atoms, molecules and nanostructures
Applied sciences All-electron calculations Electronic structure Real-space mesh techniques Carbon nanotubes
2014/11/7
This dissertation is organized as follows. Beginning with physical background discussions of many-body problems, Chapter 1 introduces the central Kohn-Sham equations of Density Functional Theory for e...
Polluter-Pays Principle Applied to Construction and Demolition Debris
Brazil Construction and Demolition Waste Landfill Diversion Private Waste Enterprise Proactive Legislation Reverse Logistics Waste Management Waste Market
2013/3/12
The research focused on the analysis of construction and demolition debris in a sample Brazilian city with the objective to propose a management scheme tailored to private initiative intervention. The...
基于相位检测原理的TDR土壤电导率测量研究（Research of Soil Conductivity Measuring Technique with TDR Based on Phase Detecting Principle）
土壤 电导率 盐分 时域反射
2010/12/29
介绍了基于相位检测的时域反射（P-TDR）技术的工作原理。对8种不同盐分含量的砂壤土土样在5个含水量水平下进行实验，结果显示，信号的反射系数随电导率增加单调减小。分别采用线性和二次多项式对测量结果进行建模实验，并选择二次多项式为P-TDR电导率测量模型，模型的决定系数达0.812以上。土壤含水量对电导率测量有较大影响，在分析了土壤含水量与多项式系数关系的基础上，最终建立了以土壤含水量和反射系数为变...
基于相位检测原理的土壤水分时域反射测量技术（Measurement of Soil Moisture Based on Phase Detecting Principle）
土壤含水量 介电常数 时域反射 相位检测
2010/1/28
针对土壤水分测量的特点，提出了用高频正弦波代替脉冲信号作为测试信号，利用相位检测原理测量信号传播时间，从而测量土壤含水量的方法。设计了由高频信号发生器、相位检测器、微处理器和土壤水分探头等组成的P-TDR原理样机。试验表明，该样机测量信号传播时间的精度可达到10ps，在砂土、壤土和粘壤土中的土壤含水量测量结果与称重法对比差值不超过0.03。
南方电网500 kV交流输电线路防雷策略（Research on Anti-lightning Strategy and External Optimization Configuration Principle of 500 kV AC Transmission Line in China Southern Power Grid）
防雷策略 饱和等值盐密法 优化配置
2010/8/17
针对南方电网500 kV交流输电线路故障特点，对几种典型的防雷措施（减小地线保护角、加强线路绝缘水平、降低接地电阻）从适用范围、效果和经济性等方面进行了分析。对不同类型的绝缘子进行了长串人工污秽试验研究，并采用饱和等值盐密法提出了南方电网500 kV交流输电线路外绝缘配置原则；并对不同外绝缘配置方案进行了技术经济比较，推荐了线路外绝缘优化配置方案。
基于连续多点成形原理的旋压成形技术（Spinning Technology Based on Principle of Continuous Multipoint Forming）
塑性成形 板材 旋压成形 连续成形
2009/12/28
介绍了传统的旋压工艺，提出了基于连续多点成形原理的旋压成形工艺，对工作旋轮的布置和驱动方式进行了探讨，研制出高效旋压成形装置，在所研制的旋压成形装置上成形了大量的实验件，实现了圆形板料件的高效旋压成形，为建立新型高效旋压成形的基本理论，解决柔性旋轮结构设计与控制点设置、自动控制系统的控制模式及探索技术参数作必要的准备工作。
THE PRINCIPLE OF SUSTAINABILITY IN THE FORESTRY PLANNING
forest forest management sustainable forest management forestry planning biodiversity
2009/11/25
Sustainable forest management (SFM) can be described by criteria and indicators. Biodiversity conservation is one of the main SFM criteria. The main task of forest planning is to organise multiple for...
SOLAR RADIATION MEASUREMENTS IN FORESTS-II. METHODS BASED ON THE PRINCIPLE OF HEMISPHERICAL PHOTOGRAPHY
solar radiation assessment silviculture horizontoscope hemispherical photography
2009/11/25
The know-how in the field of solar radiation distribution in forests is important for basic ecological investigations and silvicultural practice. Three methods of solar radiation assessment based on h...