Search Results

You are looking at 21 - 30 of 309 items for :

  • "temperature control" x
Clear All

., 2004a , 2004b ). Laboratory methods include a standard method ( Dai et al., 2008 ; Du et al., 2006 ; European Committee for Standardization, 2002 ), and the accelerated temperature-controlled incubation methods (ATCIMs) ( Dai et al., 2008 ). The

Free access

timing of CO 2 enrichment should be considered, as the increased air exchange rate during periods of active ventilation, either for temperature or humidity control, minimizes its efficacy. Supplemental lighting, temperature control, and CO 2 enrichment

Open Access

/or sample collection methods. Temperature-controlled incubation method—standard. The standard TCIM incubates a beaker containing CRF and water [i.e., 12.5:250, 5:33.3, and 1:50 (grams of CRF:milliliters of water)] at a constant temperature of 25 °C ( Dai et

Full access

is stable or in a temperature-controlled laboratory situation. Conclusion The precision of the NIRGUN in predicting DM, SSC, and hue in ‘Hort16A’ kiwifruit is similar to the level reported for standard laboratory benchtop instruments. The NIRGUN

Free access
Author:

://www.nasa.gov/offices/oct/home/tech_life_asa_analytics.html/ > Nelson, J.A. Bugbee, B. 2014 Economic analysis of greenhouse lighting: Light emitting diodes vs. high intensity discharge fixtures PLoS One https://doi.org/10.1371/journal.pone.0099010 Nemali, K 2021 Temperature Control in Greenhouses (HO

Open Access

storages differing in their degree of temperature control. These storages included UL, REF, EC storage, and SREC storage. Materials and Methods The rate of senescence of amaranth was determined using three “imperfect” storages and a household REF, the

Open Access

in a naturally illuminated temperature-controlled glasshouse (Davis, CA, GPS 38.536479, –121.7470306). The air temperature was measured with radiation-shielded thermocouples. Solar radiation at the canopy level was measured with a photosynthetically

Open Access

Abstract

A freezer system is described for subjecting biological materials to temperatures between +50° and -85°C. The system provides for removal of latent heat of fusion, adjustment of tissue water content, uniformity of temperature, control of supercooling and a wide range of cooling rates.

Open Access

Abstract

A soil cooling system was developed using a chest-type freezer as a central cold air reservoir. Thermostatically controlled fans circulate cold air from the freezer into smaller air chambers containing large plastic pots. The system is inexpensive, easily constructed, and provides good soil temperature control.

Open Access
Author:

Abstract

Turnip (Brassica rapa L.) growth in an unshaded, temperature-controlled greenhouse varied annually as a function of month. Growth was proportional to the average daily irradiance at plant level, but variance of the data suggested an interaction with some other environmental factor, possibly reduced substrate and plant temperature due to reradiation to the cold greenhouse glass at night during winter.

Open Access