16-06-23 In metal-on-metal pairings, both the shell and head of an implant consist of a cobalt-chromium-molybdenum alloy. The release of metal ions into the body has been reported as a result of implant wear. Bone loss (osteolysis) was observed in many cases...
16-05-25 For nearly 60 years, scientists have been trying to determine how manganese oxide (MnO) achieves its long-range magnetic order of alternating up and down electron spins. Now, a team of scientists has used their recently developed mathematical approa...
15-12-25 A team led by researchers from the UCLA Henry Samueli School of Engineering and Applied Science has created a super-strong yet light structural metal with extremely high specific strength and modulus, or stiffness-to-weight ratio. The new metal is c...
15-07-21 Research from North Carolina State University shows that lightweight composite metal foams are effective at blocking X-rays, gamma rays and neutron radiation, and are capable of absorbing the energy of high impact collisions. The finding means the m...
14-11-25 Researchers from North Carolina State University have developed a technique that allows ultrasound to penetrate bone or metal, using customized structures that offset the distortion usually caused by these so-called aberrating layers. We've designed...
14-05-28 Researchers have announced the first ever method for controlling the growth of metal-crystals from single atoms. Published in the journal Nature Communications and developed at the University of Warwick, the method, called Nanocrystallometry, allows...
14-05-10 Scientists from the University of the Philippines, Los Baos have discovered a new plant species with an unusual lifestyle -- it eats nickel(镍) for a living -- accumulating up to 18,000 ppm of the metal in its leaves without itself being poisoned,...
14-01-18 You might not think of microbes when you consider biodiversity, but it turns out that even a moderate loss of less than 5% of soil microbes may compromise(妥协,危害) some key ecosystem functions and could lead to lower degradation of toxins in th...
14-01-14 Four years after the January 2010 earthquake, 145,000 people still remain homeless in Haiti. A cheap and simple technology to repair earthquake damaged buildings -- developed at the University of Sheffield -- could help to reduce these delays by qui...
13-10-16 The European Space Agency has unveiled plans to take 3D printing into the metal age by building parts for jets, spacecraft and fusion projects. 欧洲太空总署计划通过制造喷气机、宇宙飞船和焊接零件将3D打印技术推进金属时代。 The Amaze project brings tog...