Background Mesenchymal stem cells (MSCs) transplantation provides a new approach for myocardial repair.However,many important fundamental questions about MSCs t
In order to analyze characteristics of Cobot cooperation with a human in a shared workspacce, the model of a non-holonormic constraint joint mechanism and its c
Recently, the degradation of permafrost and marsh environments in the Da and Xiao Hinggan Mountainshas become a great concern as more human activities and prono
A sensitive solvent extraction method for the determination of nonamolar concentrations of silicate in natural waters is developed. According to the traditional
Background Aortic root replacement with pulmonary autograft (Ross procedure) has the advantages of good haemodynamics and growth potential without the need for
A semiautomatic segmentation method based on active contour is proposed for computed tomog-raphy (CT) image series. First, to get initial contour, one image sli