To study the rapid estimation method and characteristics of low-frequency ambient sea noise generated by far-field ships, firstly, based on the reciprocity principle of sound fields read more and the fact that the number of noise sources significantly exceeds the number of receiving array elements, the positions of noise sources and receiving array
The rotary working body with evenly spaced needles along the perimeter is a flat disk (rotating in a longitudinally vertical plane).The technological process of interaction with the soil consists in the fact that when the rotary disk is read more rolled in the soil layer, the needle is inserted into it, crushing and shifting the soil in the directi
Introduction: In Pakistan the number of diagnostic and research laboratories is increasing read more in both public andprivate sectors but there is still a lack of awareness regarding biosafety practices among the lab employees.These employees can be technicians, technologists, researchers or even keeping staff who gets exposed directlyor indirectl