The paper presents the developed fiber-optic sensors for monitoring pressure measurement on the elements of mine supports. The sudden destruction of the support leads to the collapse of the mine workings and poses a serious threat to the life and safety of underground workers. A fiber-optic system for monitoring changes in pressures on the elements of mine supports will increase the s... https://lzwxlaxgk1c6v.timeblog.net/70687566/a-study-on-the-knowledge-attitude-and-practices-of-iranian-mothers-towards-childhood-obesity