搜索结果: 16-30 共查到“工学 TIN”相关记录95条 . 查询时间(0.142 秒)
SEGMENTATION OF TIN-STRUCTURED SURFACE MODELS.
The regular grid elevations database that the Institut Cartogr`afic de Catalunya has since 1987 is insufficient for certain applications. For this reason, we started the development of a new database....
Reformulation of the Muffin-Tin Problem in Electronic Structure Calculations within the FEAST Framework
Electronic Structure FEAST Muffin-tin Density Functional Theory
2014/12/8
This thesis describes an accurate and scalable computational method designed to perform nanoelectronic structure calculations. Built around the FEAST framework, this method directly addresses the nonl...
Investigating Performance Of Airborne Lidar Data Filtering With Triangular Irregular Network (TIN) Algorithm
Airborne Lidar Filtering TIN Algorithm DEM
2014/9/29
Digital Elevation Model (DEM) is an important topographic product and essential demand for many applications. Traditional methods for creating DEM are very costly and time consuming because of land su...
预氮化+熔覆复合处理制备微纳尺度TiN增强复合涂层
钛合金 激光熔覆 预氮化 Ti-N复合涂层
2016/8/17
采用预氮化+脉冲激光熔覆复合工艺在TC4钛合金表面成功地制备出了具有微纳尺度TiN增强的Ti-N复合涂层，并与传统激光氮化涂层对比研究了该涂层的组织特征和力学性能。结果表明，所获预氮化复合涂层由TiN相和α'马氏体组成，涂层硬度随引入的固态氮源N含量的增加逐渐增大。对比分析表明，该复合工艺所获涂层的硬度性能与传统激光气体氮化样品基本相当，而在深度方向上其强化效果的维持性更好，并基于数据拟合初步提出...
Synthesis of polyhydroquinoline derivatives via a four-component Hantzsch condensation catalyzed by tin dioxide nanoparticles（图）
Nano tin dioxide catalyst Hantzsch condensation Polyhydroquinoline 1,4-Dihydropyridine
2013/9/27
Tin dioxide (SnO2) nanoparticles efficiently catalyzed unsymmetrical four-component Hantzsch condensations of various aldehydes, dimedone, ethyl acetoacetate, and ammonium acetate to form polyhydroqui...
Mytilus galloprovincialis as Mussel Watch for Butyltins, Tin, Copper and Zinc Contamination, from Antifouling Paint Particles, in West Algerian Coastal Waters
Organotin Tin Copper Zinc Mytilus galloprovincialis GC-MS AAS
2013/3/11
Butyltin compounds (BTs) including tributyltin (TBT) and its degradation product (DBT) and concentrations of heavy metals (Sn, Cu and Zn) were determined in mussels (Mytilus galloprovincialis) collect...
基于TIN的LiDAR地面点云数据简化方法研究
LiDAR TIN 点云数据简化 数据处理
2013/9/23
机载LiDAR点云数据的简化虽属数据辅助处理的范畴，但对提高庞大点云数据后处理效率起着重要作用。将TIN迭代加密方法引入机载LiDAR地面点云数据简化中；对平坦地形直接简化，对复杂地形则提取山谷线、山脊线，将获得的特征点作为种子点加入TIN加密迭代简化方法中。实验证明，该方法能够在保证数据精度的前提下，简化点云数据。
Low Reflectivity and High Flexibility of Tin-Doped Indium Oxide Nanofiber Transparent Electrodes
Low Refl ectivity High Flexibility Tin-Doped Indium Oxide Nanofi ber Transparent Electrodes
2015/8/10
Tin-doped indium oxide (ITO) has found widespread use in solar cells, displays, and touch screens as a transparent electrode; however, two major problems with ITO remain: high reflectivity (up t...
传统制图综合中针对水系、地貌等不同地理要素的分治策略，往往导致综合后要素目标之间在空间与语义上的冲突。本文考虑地形与河流之间的空间依赖性，提出了一种等高线簇与河网协同的制图综合方法，即利用两种要素目标顶点在约束D-TIN描述下的空间邻近关系，并通过提取和组织谷地等高线弯曲段数据，构建两要素有效协同关系。在此基础上将等高线按所属地形区域划分为不同区段，然后根据河网层次化选取的结果，分别进行针对性的协...
Low temperature H2S sensor based on copper oxide/tin dioxide thick film
H2S copper oxide/tin dioxide gas sensors selectivity
2013/12/12
Nanostructured tin dioxide (SnO2) powders were prepared by a sol-gel dialytic process and and the doping of CuO on it was completed by a deposition-precipitation method. The thick film sensors were fa...
New paths were designed for the investigations of the-tin!Imma!sh phase transitions in nanocrystalline Ge under conditions of hydrostatic stress. A second-order transition between the-tin andImmapha...
An Investigation into the Adhesion Strength of Diamond Like Carbon Multilayer Coating (DLC/TiN/Ti/Cu/Ni)
cleanliness sputtering multilayer adhesion micro hardness
2013/1/29
Advancement in vacuum technologies and vapor deposition processes during last decades has led to the introduction of many modern coatings on metal cutting tools. Even in such an advanced vacuum coatin...
基于点删除的TIN简化算法改进
三角网格模型 TIN 三角网简化
2009/11/23
三角网格模型的简化在三维建模过程中占有很重要的地位。本文通过系统研究目前常用的三角网简化算法，归纳总结出了各主要算法的优缺点与适用范围。文中重点选择了一种适用性比较广的基于点删除的TIN简化算法，并将它应用于实际的三维地形模型简化当中，在实际工作中检验它的实用性。根据三维地形数据量大、精度要求具层次感的特点，对原算法做了一些修改，在保证简化模型细节损失在误差控制范围内的情况下，使得算法简化效率更高...
Study of the Gelling Process for the Preparation of Tin Oxide Materials Based on Tin Tetrabutoxide
sol gel tin tetrabutoxide hydrolysis condensation
2009/11/13
The gelling process in the preparation of tin oxide materials based on tin tetrabutoxide is studied. Sn(OBun)4 modified by two moles of acetylacetone (AcAc) has a stable six-member ring structure and ...