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Janssens, J.G. 한국상하수도협회 1986 水道 Vol.36 No.-
이 글은 85. 9. 16-21 서울에서 개최된 사단법인 한국수도협회 주최 제 5차 아시아태평양지역수도회의 및 전시회에 참석하였던 벨지움 앤트워프시 수도국의 J.G. Janssens박사가 국제수도협회지 AQUA No.2/1986에 기고한 전문을 번역한 것이다.
MEASURING MORBIDITY : AN SPPROACH USING POWER FUNCTIONS
JANSSENS, Gerrit K. 한국경영과학회 1988 韓國經營科學會誌 Vol.13 No.2
Subjective scoring by different groups on different status of morbidity are compared to objective data obtained from legal awards. A power law is tested between subjective and objective scores. Regression analysis by means of a power function provides a measure of consistency in its regression coefficient. Power functions fitting also leads to a justified use of geometric averaging of individual scores into group scores.
A PETRI NET-BASED CELL CONTROLLER FOR A FLEXIBLE MANUFACTURING SYSTEM
JANSSENS, GERRIT K.,TABUCANON, MARIO T. 한국경영과학회 1997 Management Science and Financial Engineering Vol.3 No.1
In a flexible manufacturing system, a cell controller is able to identify and evaluate a number of alternative decisions to meet the objectives set by the factory level controller. In this paper, a Petri net-based cell controller is presented to accomplish this task. A static model is developed by using the Integrated Computer Aided Definition(IDEF0) method to represent clear functional relationships among the objects of the system. Based on the static model, two Petri net models are developed for the physical part flow and for the information flow. Multiple decision alternatives are generated from the physical part flow model and are synchronized with the information flow model for execution of the selected alternative.
Thailand’s online reptile market decreases but shifts toward native species during COVID-19
Jordi Janssen 국립중앙과학관 2022 Journal of Asia-Pacific Biodiversity Vol.15 No.4
The recent COVID-19 pandemic presented the world with a crisis of incredible scale and made wildlifemarkets the focal point of authorities. Scientific literature on COVID-19 and wildlife trade over whelmingly focused on the zoonotic risks of wildlife markets. As many physical marketplaces for wildlifewere faced with closure or restrictions to curb the spread of COVID-19, alternative sale platforms weresought. I monitored social media platforms in Thailand during the pandemic and compared this withdata obtained in 2016. I found a significant reduction of lizards and snakes offered for sale on socialmedia, compared with before the pandemic. Although the quantity decreased, I found that the number ofspecies almost doubled in snakes, of which unprotected native species increased by 245%. Transportrestrictions would limit the mobility of harvesters and interrupts trade chains, and thus could explain thereduced number of snakes and lizards for sale. However, the increase in native species for sale shows thatthe impact of this international trade disruption could shift focus from international trade to what islocally available. Potentially having serious consequences for the conservation of local species and in linewith previous studies documenting increased poaching rates and wildlife crime incidents.