recirculate

(redirected from recirculations)

recirculate

(riːˈsɜːkjʊˌleɪt)
vb
1. (tr) to circulate (something) again
2. (intr) to pass from place or place or person to person again
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

recirculate


Past participle: recirculated
Gerund: recirculating

Imperative
recirculate
recirculate
Present
I recirculate
you recirculate
he/she/it recirculates
we recirculate
you recirculate
they recirculate
Preterite
I recirculated
you recirculated
he/she/it recirculated
we recirculated
you recirculated
they recirculated
Present Continuous
I am recirculating
you are recirculating
he/she/it is recirculating
we are recirculating
you are recirculating
they are recirculating
Present Perfect
I have recirculated
you have recirculated
he/she/it has recirculated
we have recirculated
you have recirculated
they have recirculated
Past Continuous
I was recirculating
you were recirculating
he/she/it was recirculating
we were recirculating
you were recirculating
they were recirculating
Past Perfect
I had recirculated
you had recirculated
he/she/it had recirculated
we had recirculated
you had recirculated
they had recirculated
Future
I will recirculate
you will recirculate
he/she/it will recirculate
we will recirculate
you will recirculate
they will recirculate
Future Perfect
I will have recirculated
you will have recirculated
he/she/it will have recirculated
we will have recirculated
you will have recirculated
they will have recirculated
Future Continuous
I will be recirculating
you will be recirculating
he/she/it will be recirculating
we will be recirculating
you will be recirculating
they will be recirculating
Present Perfect Continuous
I have been recirculating
you have been recirculating
he/she/it has been recirculating
we have been recirculating
you have been recirculating
they have been recirculating
Future Perfect Continuous
I will have been recirculating
you will have been recirculating
he/she/it will have been recirculating
we will have been recirculating
you will have been recirculating
they will have been recirculating
Past Perfect Continuous
I had been recirculating
you had been recirculating
he/she/it had been recirculating
we had been recirculating
you had been recirculating
they had been recirculating
Conditional
I would recirculate
you would recirculate
he/she/it would recirculate
we would recirculate
you would recirculate
they would recirculate
Past Conditional
I would have recirculated
you would have recirculated
he/she/it would have recirculated
we would have recirculated
you would have recirculated
they would have recirculated
Collins English Verb Tables © HarperCollins Publishers 2011
References in periodicals archive ?
In the NFT system, lettuce roots remained for some time (interval between two consecutive recirculations) without NS, which increases the probability of plants experiencing water deficit, especially in the hottest periods of the day.
The Nutrient Film Technique (NFT) stands out as the most viable for the use in commercial facilities and it is common to adopt recirculation frequency of 0.25 h.
However, there are not many studies evaluating biochemical characteristics of lettuce in different hydroponic systems with different recirculation frequencies and with variable water quality, in the same experiment.
The NS recirculation frequencies were every 0.25 h in the NFT system and every 0.25, 2 and 4 h in the DFT system.
The salt stress decreased shoot dry matter production of plants regardless of the hydroponic system and NS recirculation frequency (Figure 2), the reductions were more pronounced in the NFT system (45%) compared to the DFT system (10, 38 and 30% for the frequencies of 0.25, 2 and 4 h, respectively).
For the DFT system the reduction of the frequency of recirculation of the nutrient solution impaired the dry matter production of lettuce 'Taina' when using brackish water.
The frequency treatments started on the sixth day after transplantation (DAT); in the initial period (until 5 DAT), two recirculations of the solution were performed during the day, one in the morning (08:00 a.m.) and the other in the afternoon (04:00 p.m.); each event lasted for 15 min.
Therefore, for the lowest number of nutrient solution recirculations during the day, there was approximately 90% reduction in electric energy consumption in comparison to control, with a potential lower wear-and-tear of the system and, consequently, longer life.
It has also been discussed the necessity of hydroponic systems less dependent on electric energy, since the NFT, the most usual system in the Brazilian hydroponics, is an active system that requires pumping for nutrient solution recirculation. In this context, systems such as Floating and Deep Film Technique (DFT) are promising for the rural communities of the semiarid region, where interruptions in water supply are frequent.
The present study used a hydroponic system with leveled channels in order to evaluate the cultivation of coriander subjected to different intervals of nutrient solution recirculation in interaction with the use of freshwater and brackish water, the existence of gradients of growth and yield along the leveled hydroponic channel and quantify water and energy consumption.
For each recirculation frequency, two timers were activated simultaneously, turning on 10 electric pumps.
Two levels of electrical conductivity (EC) of water (0.32 and 4.91 dS [m.sup.-1]) and four frequencies of recirculation of nutrient solution (intervals of 0.25, 2, 4 and 8 h) were studied.