搜索结果: 1-15 共查到“知识库 X-Ray”相关记录840条 . 查询时间(0.171 秒)
X-ray and UV Dual Photochromism, Thermochromism, Electrochromism, and Amine-Selective Chemochromism in an Anderson-like Zn7 Cluster-Based 7-Fold Interpenetrated Framework（图）
Anderson Zn7簇 光致变色 热致变色 电致变色
2023/3/28
Smart materials are highly desirable over the recent decade due to the growing demand of complicated nature. Stable stimuli-responsive smart materials exhibit widespread potential for applications in ...
Total-body skeletal muscle mass:estimation by a new dual-energy X-ray absorptiometry method
Body composition nutritional assessment skeletal muscle mass magnetic resonance imaging dual-energy X-ray absorptiometry
2016/12/19
Background: Skeletal muscle (SM) is an important body-composition component that remains difficult and impractical to quantify by most investigators outside of specialized research centers. A lar...
ASSESSMENT OF RESTORATION METHODS OF X-RAY IMAGES WITH EMPHASIS ON MEDICAL PHOTOGRAMMETRIC USAGE
Restoration Algorithms Denoising Stereo Radiography X-ray Images Quantum Noise
2016/11/11
Nowadays, various medical X-ray imaging methods such as digital radiography, computed tomography and fluoroscopy are used as important tools in diagnostic and operative processes especially in the com...
OBSERVATIONS ON THE PERFORMANCE OF X-RAY COMPUTED TOMOGRAPHY FOR DIMENSIONAL METROLOGY
X-ray computed tomography (XCT) dimensional metrology holeplate orientation beam hardening
2016/11/11
X-ray computed tomography (XCT) is a rising technology within many industries and sectors with a demand for dimensional metrology, defect, void analysis and reverse engineering. There are many variabl...
RAY-BASED DETECTION OF OPENINGS IN URBAN AREAS USING MOBILE LIDAR DATA
Windows detection Urban 3D reconstruction Building modelling Mobile Lidar data Laser point cloud
2016/7/27
The detection of openings like windows or doors is of great interest in the field of urban modeling. Mobile LIDAR data provides valuable 3D information for that purpose. There are generally two main p...
Determination of skeletal muscle and fat-free mass by nuclear and dual-energy X-ray absorptiometry methods in men and women aged 51–84 y
bioimpedance analysis aging anthropometry
2016/6/1
Skeletal muscle mass (SMM) and fat-free mass
(FFM) are important variables in nutritional studies. Accurate
techniques for measuring these variables have not been thoroughly
validated in elderly su...
Studies of Crystalline Aggregates of Pheophorbide and Bacteriopheophorbide by Electro-Absorption (Stark Effect) Spectroscopy and Powder X-ray Diffraction
GYROTRON 2ND HARMONIC SUBMILLIMETER WAVE
2016/5/23
Absorption and electro-absorption (Stark effect) spectra of polycrystalline and lyophillized samples of pheophorbides and bacteriopheophorbides have been measured in order to obtain information on the...
X-ray Crystal Structure of a Mutant Recombinant Human Myoglobin at 2.8Å Resolution
Humans Myoglobin Recombinant Proteins X-Ray Diffraction Protein Conformation Mutation Molecular Structure
2016/5/23
We have grown crystals in trigonal space group P 3 2 21 of a mutant human myoglobin, aquomet form, in which lysine at position 45 has been replaced by arginine and cysteine at position 110 has been re...
改进后Ray-Box Intersection权系数矩阵的SART+TVM重建算法
联合代数重建 全变差最小化 Ray-BoxIntersection算法 双线性插值算法 权系数矩阵
2016/7/28
针对均匀采样稀疏型重建问题，研究了Ray-Box Intersection和传统的双线性插值两种权系数矩阵计算方法。对Ray-Box Intersection算法的逻辑漏洞进行了改进，利用直线生成法并结合射线斜率和像素位置关系提出了改进算法。该算法利用代数关系求得射线穿过重建区域的起点和终点，然后取不大于其坐标的最大整数，最后采用直线生成法，依据射线斜率沿X或Y方向得到该条射线在投影区域内经过的所...
Segmental Musculoskeletal Examinations using Dual-Energy X-Ray Absorptiometry (DXA):Positioning and Analysis Considerations
Segmentation muscle bone standardisation composition regional method
2016/1/9
Musculoskeletal examinations provide informative and valuable quantitative insight into muscle and bone health. DXA is one mainstream tool used to accurately and reliably determine body composition co...
REMOTE SENSING GEOBOTANY AND AIRBORNE GAMMA-RAY DATA APPLIED TO GEOLOGICAL MAPPING WITHIN TERRA FIRME BRAZILIAN AMAZON FOREST:A COMPARATIVE STUDY IN THE GUAPORE VALLEY (MATO GROSSO STATE,BRAZIL)
Remote Sensing Geology Geophysics Mapping Forestry Multispectral ASTER
2015/12/29
This paper comprises a comparison between the vegetation response in ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) multispectral optical imagery and possibly equivalent bedroc...
Selective X-Ray Reconstruction and Registration for Pose Estimation in 6 Degrees of Freedom
Registration Pose Estimation
2015/12/17
Selective X-Ray Reconstruction and Registration for Pose Estimation in 6 Degrees of Freedom.
Broken-Ray Videometric Method and System for Measuring the Three-Dimensional Position and Pose of the Non-Intervisible Object
Close Range Photogrammetry Deformation Digital photogrammetry
2015/12/14
The traditional videometrics technique is usually adopted to measure the relative position and pose between the intervisible objects,
and is invalid for measuring the three-dimensional position, pose...
3D RECONSTRUCTION FROM MULTI-VIEW MEDICAL X-RAY IMAGES – REVIEW AND EVALUATION OF EXISTING METHODS
Stereoradiography 3D Reconstruction X-ray images close range photogrammetry
2016/1/15
The 3D concept is extremely important in clinical studies of human body. Accurate 3D models of bony structures are currently required in clinical routine for diagnosis, patient follow-up, surgical pla...
The Future of Virtual Globes - the Interactive Ray-Traced Digital Earth
Visualization 3D Data Structure Aerial Photogrammetry Data Integration
2015/12/3
In the past ten years graphics cards have been drastically improved. Being pushed by the multi-billion dollar computer game industry the capabilities and performance of graphics processors (GPUs) incr...