The Zhalainuoer Coalfield has abundant coal and coalbed methane resources. In order to reveal the basic information of main seams in Yimin Formation, ash yield, volatile matter, moisture, maceral, minerals were analyzed based on proximate analysis, microscopic observation, field emission scanning electron microscopy with energy spectrum X-ray (SEM-EDX) diffraction (XRD) analysis. results show that moisture content is relatively low, ranging from 6.38% 11.74%, an yield 3.51%-9.64%, a...

To better solve the problem of target detection in marine environment and to deal with difficulty 3D reconstruction underwater target, a binocular vision-based system is proposed this paper. Two optical sensors are used as vision system. Firstly, denoising color restoration performed on image sequence acquired by segmented extracted according saliency using super-pixel segmentation method. Secondly, aiming reduce mismatch, we improve semi-global stereo matching method strictly constraining...

The Global Positioning System (GPS) is currently being upgraded from a dual- to triple-frequency constellation. Although full constellation will not be realized before 2021, we can already make use of these new signals for positioning. This letter presents the initial results real-time kinematic (RTK) ambiguity resolution and positioning based on real L5 measurements combined with L1 L2C measurements. second civil signal that like L5, also transmitted by GPS Block IIF satellites. results,...

With the purpose of better adapt to different types complex terrain, this paper proposes an experimental scheme for ground image and LiDAR point cloud decision-level fusion block filtering DEM generation. Firstly, are matched through homologous feature points linear transformation obtain more spectral texture information from image. Then, based on fusion, original is segmented into several independent blocks. The IPTD algorithm improved optimized by using a search method according...

Accurate classification of wetland vegetation types is the basis for monitoring and management ecosystems. At present, recognition accuracy based on UAV remote sensing images not high. In this paper, to address problem, 17 feature variables contained in spectrum, spatial geometry texture were firstly selected; then improved JM-Relief F algorithm was used rank, judge select weights constructed variables, remove redundant variables; finally, preferred 8 classified by random forest, support...

This paper discusses the hydrological data measurement on LaXiWa Hydropower station,which is also related to research programs based communication security issues and high performance. Firstly, it provides us with framework of information integration, then from three aspects, namely, sensor selection coding scheme, industrial Ethernet configuration policies MFC routing network design, about reliable secure transmission, as well sensing unit which reliability design dual redundant backup...

Abstract With the development of transportation and rapid spread travel tools, economic exchanges around world have become more frequent. The Global Positioning System (GPS) is an all-weather, high-precision, wide-coverage electronic navigation device that plays important role in identifying submarine targets. key technology GPS real-time accurate extraction targets, essence target image segmentation. In order to achieve purpose seabed recognition, a simple effective method proposed. this...

Abstract Considering actual multicriteria decision-making problem can be decomposed into multiple single event grey target decisions, a novel structure of the decision singel is proposed. In order to reduce dimensionality, index effect evaluation values are assembled as objective value, which simplifies complex by eliminating layer. Vectorial positive and negative bullseyes defined followed definition comprehensive off-target distance, integrates or distance with projection on line through...

Abstract In order to predict the possible fault points of electromagnetic brake, a novel combined diagnosis model based on multivariable grey prediction MGM(1, n ) and adaptive integrated neural network (AINN) was proposed in this paper. used development trend multiple groups feature factors. Then by Fuzzy C-mean (FCM) algorithm, cluster analysis predicted results from MGM(1,1) performed, turn, clustering feed into AINN identify features. To verify performance model, case electronic brake is...

Abstract Due to the influence of human activity and changes in natural conditions, Pearl River Estuary (PRE) has emerged as a large-scale area land subsidence, which represents serious threat quality life sustainable socio-economic development. In response problems associated with lack man-made targets traditional time-series Interferometric Synthetic Aperture Radar (InSAR) estuaries other coastal areas, distributed scatterers (DS) InSAR method based on spatially adaptive filter an...