The article considers features of creating horizontal protective shields made of steel pipes for construction of tunnel-type structures in Anti-Vibration Mount a closed manner.Types of horizontal protective shields and methods of their construction are analyzed.Variants of modern tunnel structures arranged in difficult geological conditions with th
Alkali treatment of natural fibers is one of the chemical treatments used to increase the exposed cellulose content through the removal of Anti-Vibration Mount hemicellulose and lignin on the fiber surface.This study aims to investigate the effect of alkali treatment on the physical and mechanical properties of lantung fibers.The materials used in
Nature oil and gas fields are difficult to rehabilitate effectively because of the economics of declining production.Many fields are abandoned prematurely when their life could be prolonged significantly through application of new CALENDULA SALVE technology.Romgaz (a national exploration and production company) and Schlumberger (an integrated oilfi