Welding is a method to join parts together by stable connection. used in many different fields. The limitations of manual welding methods are gradually eliminated when using robots. selection robot has great influence on the efficiency process. Choosers (customers) often encounter problems choosing among products that available market. During this study, seven types robots were given make choic...

Omicron, the new mutant coronavirus, has spread rapidly globally, attracting close attention from different stakeholders worldwide. The complex and constantly changing epidemic situation had a impact on world. Therefore, this paper focuses characteristics of rapid COVID-19 variant strain. Generally, prevention experts conduct preliminary screening as part existing plan database according to cur...

PROMETHEE refers to a collection of methods of ranking in the field of multi-criteria decision making. These methods are characterized by conceptual simplicity and practical applicability. However, the nature of phenomena involving decision-making in real world leads us to use fuzzy method of preference ranking. The most common criticism on mathematical ranking procedures is that they tend to d...