scholarly journals An optimal lockdown relaxation strategy for minimizing the economic effects of covid-19 outbreak in Sri Lanka

2020 ◽  
Author(s):  
A.C. Mahasinghe ◽  
K.K.W.H. Erandi ◽  
S.S.N. Perera
Keyword(s):  
Sri Lanka ◽  
Optimization Model ◽  
Preventive Measures ◽  
Economic Effects ◽  
Gradual Transition ◽  
Separable Programming ◽  
Non Linear

AbstractIn order to recover the damage to the economy by the ongoing covid-19 pandemic, Sri Lanka is undergoing a gradual transition from strict lockdowns to partial lockdowns through relaxation of curfew and other moderated preventive measures. In this work, we propose an optimal lockdown relaxation strategy, which is aimed at minimizing the damage to the economy, while confining the covid-19 incidence to a level endurable by the available healthcare capacity in the country. The relevant optimization model turns out to be non-linear. We use the technique of separable programming to generate solutions and discuss the results.

scholarly journals An Optimal Lockdown Relaxation Strategy for Minimizing the Economic Effects of COVID-19 Outbreak

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
A. C. Mahasinghe ◽  
K. K. W. H. Erandi ◽  
S. S. N. Perera
Keyword(s):  
Sri Lanka ◽  
Optimization Model ◽  
Preventive Measures ◽  
Approximate Solutions ◽  
Economic Effects ◽  
Transmission Dynamics ◽  
Healthcare Facilities ◽  
Compartment Models

In order to recover the damage to the economy by the ongoing COVID-19 pandemic, many countries consider the transition from strict lockdowns to partial lockdowns through relaxation of preventive measures. In this work, we propose an optimal lockdown relaxation strategy, which is aimed at minimizing the damage to the economy, while confining the COVID-19 incidence to a level endurable by the available healthcare facilities in the country. In order to capture the transmission dynamics, we adopt the compartment models and develop the relevant optimization model, which turns out to be nonlinear. We generate approximate solutions to the problem, whereas our experimentation is based on the data on the COVID-19 outbreak in Sri Lanka.

scholarly journals Non-linear charge-based battery storage optimization model with bi-variate cubic spline constraints

2020 ◽  
Vol 32 ◽  
pp. 101979
Author(s):  
Per Aaslid ◽  
Frederik Geth ◽  
Magnus Korpås ◽  
Michael M Belsnes ◽  
Olav B Fosso
Keyword(s):  
Optimization Model ◽  
Cubic Spline ◽  
Battery Storage ◽  
Linear Charge ◽  
Non Linear ◽  
Storage Optimization

scholarly journals Dengue fever in the Indian subcontinent: an overview

2010 ◽  
Vol 5 (04) ◽  
pp. 239-247 ◽  
Author(s):  
Ummar Raheel ◽  
Muhammad Faheem ◽  
Mohammad Nasir Riaz ◽  
Naghmana Kanwal ◽  
Farakh Javed ◽  
...  
Keyword(s):  
Sri Lanka ◽  
Infectious Diseases ◽  
Economic Impact ◽  
Dengue Fever ◽  
Dengue Hemorrhagic Fever ◽  
Preventive Measures ◽  
Indian Subcontinent ◽  
Hemorrhagic Fever ◽  
Economic Loss ◽  
Pivotal Role

The Indian Subcontinent has emerged as a scene of many mosquito-borne infectious diseases, including malaria and dengue fever. After the 1990s, the rate of malaria declined owing largely to preventive measures, but at the same time dengue fever (DF) and dengue hemorrhagic fever (DHF) were increasing in the region. Outbreaks were recorded in all countries of the Indian Subcontinent with India, Pakistan, Bangladesh and Sri Lanka on the forefront and suffering from the largest number of cases and deaths. We discuss annual cases of DF/DHF in these four countries and possible factors involved in DF outbreaks. We also discuss prevalent serotypes in this region where data suggest the emergence of DEN2 and DEN3 as the most dominant and lethal serotypes. Climate is an important factor influencing DF outbreaks, and rainfall, temperature and humidity play a pivotal role in DF outbreaks. Finally the economic impact of DF/DHF cases is discussed showing that direct and indirect economic loss due to DF/DHF reaches millions of USD each year.

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