DNA was extracted from the Neandertal-type specimen found in 1856 in western Germany. By sequencing clones from short overlapping PCR products, a hitherto ... M Krings,A Stone,RW Schmitz,... - 《Cell》 被引量: 1877发表: 1997年 Neandertal DNA Sequences and the Origin of Modern Humans D...
发明人: BECK, ERHARD, BAD RAPPENAU, DE 摘要: the invention relates to a verschiebesicherung for verbaugerte to rohrverschlüssen in a leak test or perimeter in kontrollschacht of sewers and pipes with torque through dry running friction material收藏...
A low cost static crashworthiness t... G Bertocci,D Ha,E Deemer,... - 《Archives of Physical Medicine & Rehabilitation》 被引量: 18发表: 2001年 Measurement System Development and Assessment of Whole Body Vibration Transmission in Power Wheelchairs Acceleration data was collected at the frame, ...
PURPOSE:To improve work efficiency by providing multiple support holes on the stanchion of a fixed frame, replacing fixing pins inserted into the support holes, lowering a lifting jack in stages, and press-fitting a well into the ground. CONSTITUTION:A lifting jack 5 is lowered along a rod 6...