Artificial Bees Colony (ABC) algoritm technique in Economic Dispatch (ED) problem

Access is limited to UniMAP community.This project studies a method that Artificial Bees Colony (ABC) algorithm in solving the Economic Dispatch Problem (ED) with transmission losses by minimizes fuel cost and also controls the generator limit. ED problem pertains to be optimum generation scheduling of available generators in power system to minimize the cost of generation subject to systems constraint. ABC is developed based on inspecting the behaviors of real bees on finding nectar and sharing the information of food sources to the bees in the hive. In this project 5 bus and 9 bus system are used. In order to success this project, study on the behaviour of ABC and ED problem is important. MATLAB was used to developing this project. From the simulation, shows that ABC is better compared to conventional methods

AI energy modelling & forecasting framework for HVAC

Heating, Ventilation, Air-Conditioning systems, or HVACs are known to be one of the highest consumers of electrical power, and this calls the need for energy modelling systems. Deep Learning and AI methods have been recently explored for various practical applications, such as forecasting energy consumption, and this has produced promising outlooks. In this study, Long Short-Term Memory, a Neural-Network Deep Learning algorithm, is used for modelling HVAC energy consumption through historical data. This dataset was first processed through data elimination and transformation, before utilising feature selection tools to determine variables with correlation to energy consumption, then time sequencing is performed. Fine-tuning methods such as hyperparameter tuning and ensemble methods were explored in this study, with an analysis of each method’s impact on the overall predictive performance. Lastly, another dataset is used to test the model’s robustness and adaptability to different data, where the model’s performance was studied for each month, as well as each time sequence.Bachelor's degre

Interdépendance et conduite des relations internationales

Interdependence and Conduct of International Relations, by Teo Chee Hean Globalization will continue to be the dominant trend in the 21st century. Contrary to some expectations, increased interdependence has not reduced the risks of conflicts. It is even tending to encourage ethnie fragmentation and a new form of tribalism. Furthermore the world has not become multipolar. Rather it is characterized by an Americanization that generates uneasiness. However, backtracking is not an option, especially as this phe-nomenon seems to be generally beneficial and will not cause nation states to vanish. We need to pool sovereignties and to use new methods to attack the global problems. The European Union has an important role to play in this respect and can help to establish a stabler world, given its experience of settling conflicts and cooperation.Teo Chee Hean, Neal Mercedes. Interdépendance et conduite des relations internationales. In: Politique étrangère, n°4 - 1999 - 64ᵉannée. pp. 867-873

Clinical Outcomes of Early Versus Late Tracheostomy in Coronavirus Disease 2019 Patients: A Systematic Review and Meta-Analysis

Background A significant proportion of Coronavirus Disease 2019 (COVID-19) patients require admission to the intensive care unit (ICU) and invasive mechanical ventilation (IMV). Tracheostomy is increasingly performed when a prolonged course of IMV is anticipated. Objectives To determine clinical and resource utilization benefits of early versus late tracheostomy among COVID-19 patients. Methods Pubmed, Cochrane Library, Scopus, and Embase were used to identify relevant studies comparing outcomes of COVID-19 patients undergoing early and late tracheostomy from January 1, 2020, to December 1, 2021. Results Twelve studies were selected, and 2222 critically ill COVID-19 patients hospitalized between January to December 2020 were included. Among the included patients, 34.5% and 65.5% underwent early and late tracheostomy, respectively. Among the included studies, 58.3% and 41.7% defined early tracheostomy using cutoffs of 14 and 10 days, respectively. All-cause in-hospital mortality was not different between the early and late tracheostomy groups (32.9% vs. 33.1%; OR = 1.00; P = 0.98). Sensitivity analysis demonstrated a similar mortality rate in studies using a cutoff of 10 days (34.6% vs. 35.5%; OR = 0.97; P = 0.89) or 14 days (31.2% vs. 27.7%; OR = 1.05; P = 0.78). The early tracheostomy group had shorter ICU length of stay (LOS) (mean: 23.18 vs. 30.51 days; P &lt; 0.001) and IMV duration (mean: 20.49 vs. 28.94 days; P &lt; 0.001) than the late tracheostomy group. The time from tracheostomy to decannulation was longer (mean: 23.36 vs. 16.24 days; P = 0.02) in the early tracheostomy group than in the late tracheostomy group, but the time from tracheostomy to IMV weaning was similar in both groups. Other clinical characteristics, including age, were similar in both groups. Conclusions Early tracheostomy reduced the ICU LOS and IMV duration among COVID-19 patients compared with late tracheostomy, but the mortality rate was similar in both groups. The findings have important implications for the treatment of COVID-19 patients, especially in a resource-limited setting. </jats:sec

sj-docx-1-jic-10.1177_08850666221098930 - Supplemental material for Clinical Outcomes of Early Versus Late Tracheostomy in Coronavirus Disease 2019 Patients: A Systematic Review and Meta-Analysis

Supplemental material, sj-docx-1-jic-10.1177_08850666221098930 for Clinical Outcomes of Early Versus Late Tracheostomy in Coronavirus Disease 2019 Patients: A Systematic Review and Meta-Analysis by Woon Hean Chong and Chee Keat Tan in Journal of Intensive Care Medicine</p

sj-docx-2-jic-10.1177_08850666221098930 - Supplemental material for Clinical Outcomes of Early Versus Late Tracheostomy in Coronavirus Disease 2019 Patients: A Systematic Review and Meta-Analysis

Supplemental material, sj-docx-2-jic-10.1177_08850666221098930 for Clinical Outcomes of Early Versus Late Tracheostomy in Coronavirus Disease 2019 Patients: A Systematic Review and Meta-Analysis by Woon Hean Chong and Chee Keat Tan in Journal of Intensive Care Medicine</p

sj-docx-3-jic-10.1177_08850666221098930 - Supplemental material for Clinical Outcomes of Early Versus Late Tracheostomy in Coronavirus Disease 2019 Patients: A Systematic Review and Meta-Analysis

Supplemental material, sj-docx-3-jic-10.1177_08850666221098930 for Clinical Outcomes of Early Versus Late Tracheostomy in Coronavirus Disease 2019 Patients: A Systematic Review and Meta-Analysis by Woon Hean Chong and Chee Keat Tan in Journal of Intensive Care Medicine</p