Publications by authors named "L Choi"
Article Synopsis
- - The study introduces a new ventilation-control algorithm aimed at optimizing indoor temperatures in broiler houses through heat-energy balance analysis, which may enhance microclimate conditions significantly.
- - Current ventilation systems maintain optimal temperatures for 74% of the time, while the new algorithm could potentially improve this to 92%, leading to better conditions for the chickens.
- - Implementation of the algorithm resulted in a reduction of indoor temperatures by 1.5-2 °C, a decrease in broiler mortality by 16.5%, and energy savings despite increased cooling pad usage, indicating better overall productivity.
Article Synopsis
- Post-harvest processing, specifically aging parsnips at 60°C for up to 30 days, significantly enhances their bioactive properties and potential health benefits.
- The study found that aged parsnip extracts exhibited substantial increases in total phenolic content and antioxidant capacity, along with higher levels of key bioactive compounds.
- In vitro and in vivo experiments revealed that these aged extracts reduced inflammation caused by acrolein exposure, suggesting their potential use in promoting respiratory health.
The development of perfusable and multiscale vascular networks remains one of the largest challenges in tissue engineering. As such, there is a need for the creation of customizable and facile methods to produce robustly vascularized constructs. In this study, secondarily crosslinkable (clickable) poly(ethylene glycol)-norbornene (PEGNB) microbeads were produced and evaluated for their ability to sequentially support suspension bioprinting and microvascular self-assembly towards the aim of engineering hierarchical vasculature.
View Article and Find Full Text PDFMaintaining the optimal microclimate in broiler houses is crucial for bird productivity, yet enabling efficient temperature control remains a significant challenge. This study developed and validated a computational fluid dynamics (CFD) model to predict temporal changes in indoor air temperature in response to variable ventilation operations in a commercial broiler house. The model accurately simulated air velocity and airflow distribution for different numbers of tunnel fans in operation, with air-velocity errors ranging from -0.
View Article and Find Full Text PDFThe UK National Institute for Health and Care Excellence (NICE) guidance for the treatment of depression is widely followed and has international influence. According to these guidelines, antidepressant medications are recommended for moderate to severe depression. Nonetheless, antidepressants are increasingly prescribed, including for cases of subthreshold and mild depression.
View Article and Find Full Text PDF