搜索结果: 1-15 共查到“知识库 Greenhouses”相关记录17条 . 查询时间(0.044 秒)
ASSESSMENT OF MULTIRESOLUTION SEGMENTATION FOR EXTRACTING GREENHOUSES FROM WORLDVIEW-2 IMAGERY
Segmentation Multiresolution Object Based Image Analysis WorldView-2 Scale Shape Compactness Local Variance
2016/11/23
The latest breed of very high resolution (VHR) commercial satellites opens new possibilities for cartographic and remote sensing applications. In this way, object based image analysis (OBIA) approach ...
PLASTIC AND GLASS GREENHOUSES DETECTION AND DELINEATION FROM WORLDVIEW-2 SATELLITE IMAGERY
Greenhouses SVM RF Boundary Tracing Line Simplification WorldView-2
2016/11/23
Greenhouse detection using remote sensing technologies is an important research area for yield estimation, sustainable development, urban and rural planning and management. An approach was developed i...
GREENHOUSES DETECTION USING AN ARTIFICIAL NEURAL NETWORK WITH A VERY HIGH RESOLUTION SATELLITE IMAGE
Artificial Neural Network Very High Resolution Satellite Image Texture Analysis
2015/8/31
Detecting and locating greenhouses in south-east of Spain is very important for politicians and other persons who may take decisions
about management of natural resources and who must design agricul...
Non-linear mixed-eff ects modeling for photosynthetic response of Rosa hybrida L. under elevated CO2 in greenhouses – Short communication
miniature rose irradiance response curve
2015/3/4
Photosynthetic response to light was measured on the leaves of two cultivars of Rosa hybrida L. (Escimo and Mercedes)
in the greenhouse to obtain light-response curves and their parameters. Th e aim...
Soil fatigue and its specificity towards pepper plants in greenhouses
Capsicum annuum celery ettuce monoculture
2014/10/28
The aim was to confirm the depressive effect on pepper plants grown in non-disinfected soils and to ascertain the possible specificity of fatigue with the goal of establishing strategies for disinfect...
FIRST NOTICE OF PHYTOPHTHORA CROWN AND ROOT ROT OF EUPHORBIA PULCHERRIMA IN POLISH GREENHOUSES
Euphorbia pulcherrima colonization cultivars occurrence Phytophthora cryptogea symptoms
2014/2/21
The plant pathogen, Phytophthora cryptogea, was recovered from 4/5 of the 75 poinsettias collected from two greenhouse farms. The poinsettias showed stunting and wilting as well as stem base and root ...
Raising Trissolcus basalis for the biological control of Nezara viridula in greenhouses of Almería (Spain)
Biological control egg storage parasitoid
2011/1/13
The reduction in use of crop protection products in recent years has led to the appearance of new phytophage pests such as Nezara viridula (L.) in the greenhouses of Almería (Spain).
温室环境控制与温室模拟模型研究现状分析（Review on Environmental Control and Simulation Models for Greenhouses）
环境控制 温室 模拟 数学模型
2009/8/11
综述了温室环境控制系统、控制策略及环境模拟等研究领域的发展状况。目前温室环境主要采用多处理器的分布式控制系统，控制器以结构通用、价格便宜的单片机为主，也可应用工业控制器，但工业控制器的价格较高。环境控制的研究重点是控制系统的智能化和信号传输的无线化，无线传输适合温室特点，为现场布线及后期维护带来方便。通过模拟模型可以了解结构特征、气象条件及作物生长等对温室环境的影响。综合考虑环境因子、作物生长及经...
CFD Modeling to Improve the Design of a Fog System for Cooling Greenhouses
fog-cooling system glasshouse natural ventilation wind speed
2009/6/10
A CFD model was developed to simulate the air temperature and relative humidity distribution in greenhouses adopting fog-cooling systems using FLUENT. The developed model was validated using the data ...
Prevailing Conditions, Problems and Devolopment Posibilities of Greenhouses in The Black Sea Region
Prevailing Conditions Greenhouses Black Sea Region
2009/1/16
The aim of this study is the determination of the prevailing conditions, characteristics and problems of commercial greenhouse growing in the Black Sea region. For this purpose, Samsun, Ordu, Giresun...
The Effects of Different Pruning Methods and Height of Fruit Setting on Plant Growth, Yield and Fruit Quality of Melons Grown in Greenhouses
Different Pruning Methods Height of Fruit Setting Plant Growth Fruit Quality
2009/1/14
This research was carried out to determine the effects of different pruning methods and height of fruit setting in greenhouse melon production for two years. The first year, the Makdimon F1 variety wa...
Evaporative Cooling Efficiency of a Fogging System for Greenhouses
Greenhouse Fogging system Air flow rate Evaporation flow rate
2009/1/13
The objective of this study was to investigate the efficiency of fogging system (FS) for greenhouses. The experiments were carried out in a multi-span plastic greenhouse (PG), 105.6 m wide and 205 m ...
Population Densities of Liriomyza huidobrensis（Blanchard, 1926）（Diptera：Agromyzidae）in Insecticide-Treated and Non-Treated Cucumber Producing Greenhouses in the İzmir Region
Liriomyza huidobrensis population density insecticide-treated and non-treated cucumber Turkey
2009/1/13
Liriomyza huidobrensis (Blanchard) (Diptera: Agromyzidae) is an important pest in cucumber greenhouses in Çamönü (Menderes, İzmir), Turkey. This study was carried out during the sprin...
Effect of Thermal Screens on the Microclimate and Overall Heat Loss Coefficient in Plastic Tunnel Greenhouses
Plastic tunnel Thermal screen Overall heat loss coefficient
2009/1/13
The objective of the present study was to evaluate the effects of thermal screens made of clear polyethylene (PE) and polyester material on the microclimate and overall heat loss coefficient in plast...
Effectiveness of Bumblebee Pollination in Anti-Frost Heated Tomato Greenhouses in the Mediterranean Basin
Lycopersicon esculentum greenhouse cultivation Bombus terrestris pollination fruit set
2009/1/13
Turkey has 22,000 ha of greenhouse area, and about 51% of vegetable greenhouses are used for tomato production. In Mediterranean countries generally greenhouses are not regularly heated at optimal lev...