The results of comparison of stratigraphic sections of Upper Pleistocene-Holocene sediments SUITS COTTON HOPKINS of the Black and Azov Seas, the main stratotypic areas: the Kerch Strait, the northwestern shelf of the Black Sea, the Azov Sea and its southern shores.It was established that in the post-Karangate time, as a result of fluctuations in th
Wire electric discharge machining (WEDM) promise to be effective and economical techniques for the production of tools and parts from conducting ceramic blanks.However, the manufacturing of nanocomposite ceramics blanks with these processes is a long and Sandals costly process.This paper presents a new process of machining nanocomposite ceramics us
Abstract Background Non-vascularized bone grafting (NVBG) has demonstrated to treat osteonecrosis of the femoral head (ONFH).There are a number of articles updating the use of NVBG to treat the ONFH, but the percentage of patients subsequently undergoing a total hip arthroplasty (THA) is controversial.Methods Several electronic databases, including
AbstractAs one of the most common disasters in deep mine roadway, floor heave has caused serious obstacles to mine transportation and normal production activities.The third section winch roadway in the third mining area of Qitaihe Longhu coal mine has a serious floor heave due to the large buried depths of the roadway and the semicoal rock roadway,