Resource Utilization Efficiencies in a Closed System with Artificial Lighting during Continuous Lettuce Production
نویسندگان
چکیده
منابع مشابه
Analysis of the Jobs Resource Utilization on a Production System
In HPC community the System Utilization metric enables to determine if the resources of the cluster are efficiently used by the batch scheduler. This metric considers that all the allocated resources (memory, disk, processors, etc) are full-time utilized. To optimize the system performance, we have to consider the effective physical consumption by jobs regarding the resource allocations. This i...
متن کاملEconomic Evaluation of Artificial Lighting in Vegetable Greenhouses (Case Study: Cucumber Production in Hamadan Province)
Sunlight, as a natural resource, is an important factor in agriculture, which is supplied indefinitely and without any charge by the sun. But some phenomena such as cloudy weather or shortening the length of the day throughout the year, cause restrictions on access to this important source. This is very important for cultivation in controlled environments such as greenhouses, which usually prod...
متن کاملResource use efficiency of closed plant production system with artificial light: Concept, estimation and application to plant factory
Extensive research has recently been conducted on plant factory with artificial light, which is one type of closed plant production system (CPPS) consisting of a thermally insulated and airtight structure, a multi-tier system with lighting devices, air conditioners and fans, a CO2 supply unit, a nutrient solution supply unit, and an environment control unit. One of the research outcomes is the ...
متن کاملResource utilization during software development
This paper discusses resource utilition over the lie cycle of software development and diiusses the rote that the current “waterfall” model plays in the actua! software life cycle. Software production in the NASA environment was analyzed to measure these differences. The data from 13 diierent pmjects were collected by the Software Engineering bboratory at NASA Goddard Space Fliiht Center and an...
متن کاملLettuce Production in California
Background In the early 20 century, California produced only little lettuce . For 1909, Knott and Tavernetti [4] reported that lettuce was produced on 595 acres in California, which corresponded to 11% of the total U.S. acreage. Lettuce production increased dramatically in the 1920s (Figure 1). While 6,100 acres were harvested in 1919 , the harvested area reached 112,000 acres by 1930 . The mar...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Agronomy
سال: 2020
ISSN: 2073-4395
DOI: 10.3390/agronomy10050723