In this work, we investigate underwater treasures sunken medallion a linear partial differential equation in (3+1)-dimensions.We construct lump solutions which localize in all directions in the (x,y,z)-space.By combining the trigonometric, hyperbolic and exponential functions with a quadratic function, diversity interaction solutions such as intera
About one year ago, we wrote about how the COVID-19 pandemic was unfolding worldwide and started to impact our personal and professional lives (1).Little did we know that, one year later, more than 2.5 million people would have died, with the highest death tolls in Europe, North America, and Latin America (2).Whereas in many countries, life expecta
Traditional safety training media to transfer safety knowledge specific to the rock-related hazards in underground mines are mainly video or manuals, which are inefficient and bring a poor training experience.In this paper, we designed and developed a serious game based on virtual reality (VR) technology in order to efficiently transfer safety know
Errors are common and systemic deviations resulting from the violation of the rules of the second catherine lansfield ombre rainbow clouds eyelet curtains language.In the present study, lexical errors based on the classification of Dulay, Burt and Krashen of errors (1982) are divided into three categories: intralingual errors, interlingual errors a
Recently, the application of water hydraulics has received considerable attention because of its inherent merits such as sofia barclay sexy environmental friendliness, hygiene, washability, high safety against fire hazard, lower running cost, and availability of tap water.However, water hydraulic systems have lower energy efficiencies than oil hydr