Results 1 to 10 of about 22,239 (263)

Greenhouse Natural Ventilation Models: How Do We Develop with Chinese Greenhouses?

open access: yesAgronomy, 2022
Greenhouse technology has advanced over the past few decades in terms of environmental control (e.g., indoor temperature, relative humidity, and CO2 concentration). Ventilation is an effective way to adjust the indoor climate.
Jingfu Zhang   +6 more
doaj   +1 more source

Low Cost, Easily-Assembled Centrifugal Buoyancy-Based Emulsification and Digital PCR

open access: yesMicromachines, 2022
Microfluidic-based droplet generation approaches require the design of microfluidic chips and a precise lithography process, which require skilled technicians and a long manufacturing time.
Wuping Zhou   +6 more
doaj   +1 more source

Relevancy of Nizatidine’s Release from Floating Tablets with Viscosity of Various Cellulose Ethers

open access: yesSci, 2021
Nizatidine is a gastroprotective drug with a short biological half-life and narrow absorption window. This study aimed at developing floating tablets of nizatidine using various HPMC viscosity grades, namely K4M, E4M, K15 and K200M.
Yasser Shahzad   +5 more
doaj   +1 more source

The Effects of Buoyancy on Laminar Heat Transfer Rates to Supercritical CO2 in Vertical Upward Flows

open access: yesFluids, 2023
Buoyancy effects in vertical, upward laminar flows can result in an augmentation in heat transfer rates to supercritical CO2 (sCO2) near its pseudocritical temperature (TPC).
Krishnamoorthy Viswanathan   +1 more
doaj   +1 more source

Modification of k-ε Model for Sensible Heat and Momentum Flux Reconstruction from Surface Temperature Data

open access: yesAtmosphere, 2022
We present a modified k-ε model with a set of wall-functions suitable for reconstruction of sensible heat and momentum fluxes from the observations data (e.g., surface temperature evolution during the diurnal cycle).
Michael Hrebtov, Maxim Bobrov
doaj   +1 more source

Transient Dynamics in Counter-Rotating Stratified Taylor–Couette Flow

open access: yesMathematics, 2023
This study focuses on the investigation of stratified Taylor–Couette flow (STCF) using non-modal analysis, which has received relatively limited attention compared to other shear flows. The dynamics of perturbations under different temperature conditions
Larry E. Godwin   +3 more
doaj   +1 more source

Sorption of petroleum products with natural sorbents

open access: yesАлматы технологиялық университетінің хабаршысы, 2021
This article presents the results of a study of cleaning the water surface from contamination with petroleum products. Kulantaussky vermiculite, the birthplace of the Turkestan region, was studied as a sorbent.
A. K. Iskendirova   +2 more
doaj   +1 more source

Mode of life and hydrostatic stability of orthoconic ectocochleate cephalopods: Hydrodynamic analyses of restoring moments from 3D printed, neutrally buoyant models [PDF]

open access: yesActa Palaeontologica Polonica, 2019
Theoretical 3D models were digitally reconstructed from a phragmocone section of Baculites compressus in order to investigate the hydrostatic properties of the orthoconic morphotype.
David J. Peterman   +3 more
doaj   +1 more source

On the Role of Psychological Health and Buoyancy in EFL Teachers' Professional Commitment

open access: yesFrontiers in Psychology, 2022
Teachers have the main role in cultivating the future members of the community by their effort in the educational space, and indeed, the quality of education would not be accomplished without the ultimate determinations of enthusiastic and committed ...
Manman Li
doaj   +1 more source

The mediating roles of buoyancy and boredom in the relationship between autonomous motivation and engagement among Chinese senior high school EFL learners

open access: yesFrontiers in Psychology, 2022
For several decades, there has been an increase in studies on second language motivation, one of the most salient topics in individual difference research in second language acquisition, guided by theories and methods from related fields.
Ying Wang, Honggang Liu
doaj   +1 more source

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