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authors are solely responsible for the content of this technical presentation. The technical presentation does not necessarily reflect the official position of the American Society of Agricultural and Biological Engineers (ASABE), and its printing and distribution does not constitute an endorsement of views which may be expressed. Technical presentations(More)
Greenhouse crop production systems are located throughout the world within a wide range of climatic conditions. To achieve environmental conditions favorable for plant growth, greenhouses are designed with various components, structural shapes, and numerous types of glazing materials. They are operated differently according to each condition. To improve the(More)
A volume production H-ion source (VPIS) with a low energy beam transport (LEBT), which will be used as the pre-injector of the KEK/JAERI Joint Project for high-intensity proton accelerator facility, was developed at KEK. The design beam current, extraction hole diameter of the VPIS, in which no cesium is used, are 36 mA and 7 mm, respectively. The 0.54 m(More)
The construction of the 60-MeV proton linac has started as a low-energy front of the KEK/JAERI Joint Project for a high-intensity proton accelerator facility at KEK. The accelerating frequency is 324 MHz. Five UHF klystrons are used as an rf source; their ratings have a maximum power of 3 MW, a beam pulse width of a 700 µsec (an rf pulse width is 650 µsec)(More)
This paper proposes a Systems Modeling Language (SysML)-based simulation model aggregation framework to develop aggregated simulation models with high accuracy. The framework consists of three major steps: 1) system conceptual modeling, 2) simulation modeling, and 3) additive regression model-based parameter estimation. SysML is first used to construct the(More)
A web-based, multi-faceted educational instrument for the greenhouse Controlled Environment Agriculture (CEA) Program has been under development at The University of Arizona. The educational deliverables will include, not only libraries of information related to CEA, but also living laboratories with access to historical and real time climate data, and live(More)
Four cultivars (Blitz, Mariachi, Quest and Rapsodie) of tomato were grown hydroponically on rockwool in two microclimates (east and west) inside the greenhouse (Tucson, AZ) under two nutrient solution electrical conductivity (EC) levels (2.6 or 4.5 dS m-1), adjusted by adding NaCl and CaCl 2 after the setting of first fruit truss. In all cultivars, total(More)
Increasing numbers of vegetable growers purchase their transplants from specialized transplant producers. Possible deterioration of transplants during transportation limits the market size as well as the potential sources of high quality transplants. To determine best conditions for transportation of seedlings, tomato (Lycopersicon esculentum; 'Durinta')(More)
In the United States, the greenhouse industry covers more than 15,000 acres and is supported by a diverse number of firms with employee expertise in greenhouse manufacturing, engineering, irrigation, horticulture, IPM, sales, marketing, and business management. The greenhouse industry is in need of highly trained undergraduates having higher-order thinking(More)
Increasing numbers of vegetable growers purchase their transplants from specialized transplant producers instead of using their own facilities to grow their own transplants. A drawback of purchasing transplants is the risk of deterioration to transplants during transportation from transplant producers to the growers. This limits the market size, as well as(More)