Results 171 to 180 of about 186,264 (366)
مدیریت بازرگانی, 2015 Over the last decade, Iranian scientific society has used qualitative research methods such as grounded theory widely in management science studies and has utilized it as an effective method. Differences between two founders of this method resulted into different methods: Classic Grounded Theory (CGT) and Straussian Grounded Theory.
Ali Akbar Farhangi +2 more
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Migration and Dispersion Evolution of Exhaled Aerosol in a Ward Under Different Ventilation Modes
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Wards with special functions and closure will have a higher risk of viral transmission as aerosols are an important mode of transmission for the SARS‐CoV‐2 virus. In this study, an experimental platform was built to establish the relevant parameters of the aerosol model and the aerosol propagation model according to the experimental results ...
Jingzhi Zhang +8 more
wiley +1 more source
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Aiming at the current demand for using wellbore coaxial lines with tubing and casing in oil wells, implementing microwave chemical‐assisted crude oil upgrading underground, and promoting “carbon‐zero” mining projects in oil field development, we carried out theoretical analysis, simulations, and applied research on the distributed parameters ...
Tao Liu, Lili Wang
wiley +1 more source
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT The paper establishes an advanced computing algorithm to investigate the thermosolutal dynamics of an electrically conductive Brinkman‐type nanofluid that moves in a porous channel, and the fluid is acted on by an inclined magnetic field exerted externally.
Urwa Shehbaz +4 more
wiley +1 more source
Quantal Modifications to the Wheeler DeWitt Equation [PDF]
, 1995 Commutator anomalies obstruct solving the Wheeler-DeWitt constraint equation in Dirac quantization of quantum gravity-matter theory. When the obstruction is removed, there result quantal modifications to the constraints.
Jackiw, R.
core +1 more source
Quantum-gravitational null Raychaudhuri equation
Journal of High Energy PhysicsWe consider a congruence of null geodesics in the presence of a quantized spacetime metric. The coupling to a quantum metric induces fluctuations in the congruence; we calculate the change in the area of a pencil of geodesics induced by such fluctuations.
Sang-Eon Bak +3 more
doaj +1 more source
Applications in Plant Sciences, EarlyView.Abstract Premise The censer seed dispersal mechanism, whereby mature fruits are retained on plants and seeds dispersed by mechanical shaking, is among the most specialized wind‐aided seed dispersal strategies employed by the flowering plants. An efficient, affordable, and easily repeatable protocol for determining whether a species uses this unusual ...
Abigail J. Motter +2 more
wiley +1 more source
Experimental methods for wind tunnel studies of seed dispersal by wind
Applications in Plant Sciences, EarlyView.Abstract The complexity and variability of natural environments make quantitative studies of seed wind dispersal challenging. Wind tunnel experiments offer a controlled alternative to investigate the mechanisms of seed wind dispersal. This review focuses on wind tunnels and the associated technologies used for studying seed wind dispersal, including ...
Liang Tian +5 more
wiley +1 more source
Quantum theory without classical time: a route to quantum gravity and unification [PDF]
, 2021 Tejinder P. Singh
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