QUES: Comprising ground floor with dining room and kitchen

correct the punctuation.

CORRECTED: Comprising ground floor with dining room and kitchen.

QUES: Mechanical preparation is the most common method of preparing materialographic samples for microscopic examination

correct the punctuation.

CORRECTED: Mechanical preparation is the most common method of preparing materialographic samples for microscopic examination.

QUES: Chairman of the scientific committee is Ruut Peuhkuri DTU Byg Denmark

correct the punctuation.

CORRECTED:
Chairman of the scientific committee is Ruut Peuhkuri, DTU Byg, Denmark.