搜索结果: 1-15 共查到“工学 Upgrading”相关记录17条 . 查询时间(0.112 秒)
Upgrading catalytic activity of NiO/CaO/MgO from natural limestone as catalysts for transesterification of coconut oil to biodiesel
Biodiesel Limestone Methyl ester PEG Vegetable oil
2023/12/19
Limestone was converted to high surface area CaO/MgO catalysts via calcination-hydration-dehydration (CHD) method for transesterification of coconut oil to biodiesel. Thermal?decomposition?at 900 degr...
INVESTIGATING THE USE OF 3D GEOVISUALIZATIONS FOR URBAN DESIGN IN INFORMAL SETTLEMENT UPGRADING IN SOUTH AFRICA
urban design map reading geovisualization
2016/7/8
Informal settlements are a common occurrence in South Africa, and to improve in-situ circumstances of communities living in informal settlements, upgrades and urban design processes are necessary. Spa...
A SUSTAINABLE APPROACH FOR UPGRADING GEOGRAPHIC DATABASES BASED ON HIGH RESOLUTION SATELLITE IMAGERY
Map upgrading Sustainable Development High Resolution Imagery Cartography
2015/12/28
The availability of high-resolution satellite images could be exploited for upgrading geographic databases at medium scales (1:5,000-1:25,000) as alternative to aerial photogrammetry. The paper presen...
UPGRADING FUNDAMENTAL GIS DATABASES FOR NAVIGATION FROM HIGH RESOLUTION SATELLITE IMAGERY
Road Extraction Updating Upgrading Navigation High Resolution
2015/12/23
Upgrading fundamental GIS databases for navigation use is an important work for providing location-based services In this paper, we present a process for extraction road networks in urban city from pa...
Experiences in Upgrading of Large Databases of Satellite Images
Automation Spatial Database QuickBird
2015/7/7
Many technical aspects are involved in the upgrading of satellite image databases: geometric registration, resampling, radiometric
adjustment, mosaicking. In this paper, after an overview of all prob...
AN INTEGRATED SPATIAL INFORMATION FRAMEWORK FOR INFORMAL SETTLEMENT UPGRADING
GIS informal settlements urban planning database management upgrading
2014/12/30
This paper describes a new planning methodology for the comprehensive upgrading of informal settlements in-situ . This uses a variety of spatial imaging and data capture techniques to link different c...
UPGRADING TO POSTGIS 2.0 IN THE BRAZILIAN FEDERAL POLICE FORENSICS GIS
Updating Core Spatial Databases PostGIS 2.0 PostgreSQL, GIS
2014/4/28
Inteligeo, the Geospatial database of the Brazilian Federal Police Forensics Department, contains more than 800 layers and almost
7 million features. It was initially stored in a PostgreSQL database ...
Upgrading Residues to Maximize Distillate Yields with UOP UniflexTM Process
Residue Conversion Upgrading Hydrocracking Slurry
2010/9/8
Never before have refiners faced the challenges caused by dramatic changes in crude prices and refinery margins. However some worldwide trends have not changed, such as the need to shift refinery prod...
Influence of Catalyst Type and Regeneration on Upgrading of Crude Bio-oil through Catalytical Thermal Cracking
catalytic cracking biomass catalyst
2009/11/16
Catalysts, such as HZSM-5(Si/Al=50), HZSM-5(25), zeolite 5A, CaHZSM-5(50), ZnHZSM-5(50), and Kaolin were used in upgrading of crude biomass oil from pyrolysis in a fixed-bed reactor under atmospheric ...
Effective Demetalization and Suppression of Coke Formation Using Supercritical Water Technology for Heavy Oil Upgrading
Heavy oil Upgrading Supercritical water
2009/8/4
In this study, a new upgrading method with supercritical water was developed for heavy oil in order to produce light oil that was free from heavy metal and heavy hydrocarbon fraction under coke suppr...
Desulfurization of Bitumen by Hydrothermal Upgrading Process in Supercritical Water with Alkali
Bitumen Upgrading Supercritical water Desulfurization Benzothiophene
2009/7/27
Hydrothermal desulfurization was evaluated for the upgrading of bitumen in supercritical water with alkali, based on the formation and decomposition of thiophene derivatives. In the alkaline hydrothe...
Upgrading of Bitumen by Hydrothermal Visbreaking in Supercritical Water with Alkali
Oil sand Upgrading Supercritical water Desulfurization Vanadium
2009/7/23
This study aimed to clarify the characteristics of the upgrading reaction of bitumen in supercritical water with alkali compared to pyrolysis, and to obtain more information about desulfurization in ...
Upgrading of heavy residue in oil refining
refinery heavy residue upgrading desulfurization high severity fluid catalyst cracking
2009/4/27
Upgrading technology for heavy residue in which sulfur and metals are concentrated is getting more important since crude oils tend to be heavier. In this paper, first characteristics of heavy crude o...
Overview of heavy oil upgrading technology
heavy oil heavy crude unconventional oil upgrading residue
2009/4/27
Utilization of heavy crude including unconventional oil may be indispensable to cope with an increasing demand of crude oil in developing countries, such as China and India. Upgrading technologies a...
Upgrading the shear strength of non-ductile reinforced concrete frame connections using FRP overlay systems
shear FRP connections strength ductility
2009/2/17
This investigation presents the use of Fiber Reinforced Polymer (FRP) composite systems in upgrading existing reinforced concrete frames to meet strength and ductility requirements laid out in recent ...