Results 31 to 40 of about 18,073,426 (243)
Application of environmental tracers for investigation of groundwater mean residence time and aquifer recharge in fault-influenced hydraulic drop alluvium aquifers [PDF]
Hydrology and Earth System Sciences, 2019 Investigating groundwater residence time and recharge sources is crucial for water resource management in the alluvium aquifers of arid basins. Environmental tracers (chlorofluorocarbons, 3H, 14C, δ2H, δ18O) and groundwater hydrochemical components are ...
B. Ma +7 more
doaj +1 more source
Design and Development of Mathematical Model for Static Mixer [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2016 A numerical model for simulating Residence Time Distribution (RTD) of turbulent flows in helical static mixers is proposed and developed to improve the understanding of static mixers.
Akila Rajamanickam, Krishnaswamy Balu
doaj
Determination of the residence-time distribution in industrial dryer for the production of recycled polyester [PDF]
Chemical Industry and Chemical Engineering Quarterly, 2021 The study proposes the evaluation of the residence-time distribution (RTD) in situ in an industrial dryer for the production of recycled polyester fibers (PES) from colorless polyethylene terephthalate (PET) flakes without interruption of the production.
Zauli da Silva Felipe +3 more
doaj +1 more source
Comment on mean residence time in flow systems [PDF]
Chemical Engineering Science, 1985 Critique d'un article de Awasthi et Vasudeva paru ibid., 1983, 38, 313, selon lequel le temps de sejour d'un systeme en ecoulement peut etre superieur au quotient du volume et du ...
Curl, Rane L., Mann, Uzi
openaire +3 more sources
Numerical Simulations of a Gas–Solid Two-Phase Impinging Stream Reactor with Dynamic Inlet Flow
Energies, 2018 Fluid flow characteristics and particle motion behavior of an impinging stream reactor with dynamic inlet flow (both inlet velocity patterns exhibit step variation) are investigated and discussed with the computational fluid dynamics–discrete ...
Xueqing Liu +4 more
doaj +1 more source
Pharmaceutics, 2021 Twin-screw wet granulation is a crucial unit operation in shifting from pharmaceutical batch to continuous processes, but granulation kinetics as well as residence times are yet poorly understood.
Timo Plath +3 more
doaj +1 more source
Journal of Hydrology and Hydromechanics, 2017 The objective of the study was to evaluate the spatial distribution of peakflow pre-event water contributions and streamwater residence times with emphasis on land use patterns in 38 subcatchments within the 687 km2 large mesoscale transboundary ...
Šanda Martin +7 more
doaj +1 more source
The residence time of water in the atmosphere revisited [PDF]
Hydrology and Earth System Sciences, 2017 This paper revisits the knowledge on the residence time of water in the atmosphere. Based on state-of-the-art data of the hydrological cycle we derive a global average residence time of 8.9 ± 0.4 days (uncertainty given as 1 standard deviation).
R. J. van der Ent, O. A. Tuinenburg
doaj +1 more source
Central Nervous System Tumors Among Infants in Canada: A Report From CYP‐C
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Central nervous system (CNS) tumors in infants are rare, pose unique clinical challenges, and lack large‐scale evidence‐based data to guide management. This study seeks to describe CNS tumors in Canadian infants and to compare their outcomes with those of older children.
Samuel Sassine +17 more
wiley +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Numerous international studies have reported declines in new cancer diagnoses, delayed diagnoses and disruptions in cancer treatment following the implementation of COVID‐19 pandemic public health measures, raising concerns that these effects may ultimately contribute to increased cancer mortality.
Friederike Erdmann +8 more
wiley +1 more source