Abstract Current epidemiological models can in principle model the temporal evolution of a pandemic. However, any such will rely on parameters that are unknown, which practice estimated using stochastic and poorly measured quantities. As result, an early prediction long-term pandemic quickly lose relevance, while late be too to useful for disaster management. Unless is designed adaptive, it bound either relevance over time, or trust thus not have second-chance retraining. We propose strategy...

A quantitative COVID-19 model that incorporates hidden asymptomatic patients is developed, and an analytic solution in parametric form given. The the impact of lock-down resulting spatial migration population due to announcement lock-down. method presented for estimating parameters from real-world data, it shown various phases observed epidemiological data are captured well. It increase infections slows down herd immunity achieved when active symptomatic 10-25% four countries we studied....

Current epidemiological models can in principle model the temporal evolution of a pandemic. However, any such will rely on parameters that are unknown, which practice estimated using stochastic and poorly measured quantities. As result, an early prediction long-term pandemic quickly lose relevance, while late be too to useful for disaster management. Unless is designed adaptive, it bound either relevance over time, or trust thus not have second chance retraining. We propose strategy...

A quantitative COVID-19 model that incorporates hidden asymptomatic patients is developed, and an analytic solution in parametric form given. The the impact of lockdown resulting spatial migration population due to announcement lockdown. method presented for estimating parameters from real-world data. It shown increase infections slows down herd immunity achieved when symptomatic are 4-6\% European countries we studied, total infected fraction between 50-56 \%. Finally, a number patients,...

Vibrational energy harvesters (VEH) are increasingly becoming the favourite approach towards making self sustained low power systems. However, obtaining frequencies close to those of ambient vibrations has been a challenge. In current work we have proposed novel design piezoelectric-VEH (P-VEH) consisting micro-machined thick silicon proof mass suspended with quad-beams carved out monolithic single crystal silicon, which provides physically stable structure resonance frequencies. The...

We revisit force evaluation methodologies on rigid solid particles suspended in a viscous fluid that is simulated via the lattice Boltzmann method (LBM). point out noncommutativity of streaming and collision operators procedure due to presence boundary, provide theoretical explanation for this observation. Based analysis, we propose discrete calculation scheme with enhanced accuracy. The proposed essentially version Reynolds transport theorem (RTT) context formulation. Besides maintaining...

The SARS-Cov-2 is a type of coronavirus that has caused the COVID-19 pandemic. In traditional epidemiological models such as SEIR (Susceptible, Exposed, Infected, Removed), exposed group E does not infect susceptible S. A distinguishing feature that, unlike with previous viruses, there distinct "asymptomatic" A, who do show any symptoms, but can nevertheless others, at same rate infected patients. This situation captured in model known SAIR Asymptomatic, introduced Robinson and Stilianakis...

Recent work on agent-based models of wealth distribution has yielded nonlinear, non-local Fokker-Planck equations whose steady-state solutions describe empirical distributions with remarkable accuracy using only a few free parameters. Because these are often used to solve the 'inverse problem' determining parameters given data, there is much impetus find fast and accurate methods solving 'forward finding steady state corresponding In this work, we derive calibrate lattice Boltzmann equation...

EMS Annual Meeting Abstracts Vol. 19, EMS2022-34, 2022, updated on 28 Jun 2022 https://doi.org/10.5194/ems2022-34 © Author(s) 2022. This work is distributed under the Creative Commons Attribution 4.0 License.

After the sunset, under calm and clear sky conditions, aerosol laden surface air-layer, cools radiatively to upper atmosphere. Predominant effect of radiative cooling on vertical temperature profile extends several hundred meters from surface. This results in development a stable, nocturnal inversion layer. However, ground surface, owing its higher thermal inertia, lags process. Due this about meter thick air layer just above can be (2-6)deg Celsius cooler than ground. Thus, at an unstable...

We revisit force evaluation methodologies on rigid solid particles suspended in a viscous fluid and simulated via lattice Boltzmann method (LBM). point out the non-commutativity of streaming collision operators procedure provide theoretical explanation for this observation. Based analysis, we propose discrete calculation scheme with enhanced accuracy. The proposed is essentially version Reynolds Transport Theorem (RTT) context formulation. Besides maintaining satisfactory levels reliability...

The number of smartphone users is increasing thrice as compared to laptops in these few years because they provide good mobility, easy handle and maintain. Smartphones are means for providing various services over the internet. Even smart devices handled using smartphones. Despite technological enhancement mobile phones past years, lack storage capacity. Due smartphones' small size, handy nature, lightweight constrained by limited There a method extend memory cards, pen drives, but amount...