Osteopetrosis is a rare, inherited disease characterized by dense and brittle bones, and it is associated with an increased risk of femoral fractures. However, the surgical treatment of the fracture patients with osteopetrosis is a subject of controversy, because it is difficult to compare the treatment effects between surgical treatment and conservative treatment in part due to the rarity of s...

Li0.33La0.57TiO3 (LLTO) is a potential Li-ion conducting membrane for use in aqueous Li-air batteries. To be in this configuration its mechanical properties must be determined. Dense LLTO was prepared using a solidstate (SS) or sol–gel (SG) procedure and was hot-pressed to yield a high relative density material ([95 %). Young’s modulus, hardness, and fracture toughness of the LLTO-SS and sol–ge...

The pyroclastic aggregate concrete of Trajan's Markets (110 CE), now Museo Fori Imperiali in Rome, has absorbed energy from seismic ground shaking and long-term foundation settlement for nearly two millenia while remaining largely intact at the structural scale. The scientific basis of this exceptional service record is explored through computed tomography of fracture surfaces and synchroton X-...

background at altnagelvin, a district general hospital in northern ireland, we have observed that a significant number of hip fracture admissions are later readmitted for treatment of other medical conditions. these readmissions place increasing stress on the already significant burden that orthopedic trauma poses on national health services. objectives the aim of this study was to review a ser...

this article introduces a new tri-parameter law of corresponding states from the known regularities, namely the lir and zeno line for dense fluids (when tz=tc). two of these parameters are the zeno line parameters and the third parameter (the fluid parameter), has been obtained from the lir, this parameter is solely dependent upon the fluid characteristics. the third parameter can be obtaind fr...

SiC-particulate-reinforced aluminum matrix composites (SiCp/Al MMCs) are widely used in the aerospace field due to their high specific stiffness and strength, low thermal expansion coefficient, good radiation resistance. In process of application promotion, there is a connection problem between electronic glass. this work, lead-free SiO2-B2O3-Na2O glass filler was seal 65 vol.% SiCp/ZL102 DM305...

The uniaxial compression experiment of red sandstone is observed simultaneously by using acoustic emission and digital speckle correlation methods. deformation evolution divided into microfracture random expansion stage, localization subinstability instability failure stage. Green’s function dispersion curve each stage are obtained from the noise data picked up equipment, characteristics analyz...

carpal fracture-dislocation is regarded as an unusual orthopedic injury and, thus, orthopedic surgeons are less experienced in dealing with and treating these fractures and dislocations. we report a 20-year-old worker man suffering from an unusual carpal fracture-dislocation. there was trans-scaphoid fracture and lunate dislocation with other carpal proximal bones toward volar of the wrist. two...

Intensive-stage fracturing in horizontal wells is a potentially new technology for reservoir stimulations of deep shale oil and gas. Due to strong stress interaction among the dense fractures, fracture geometry field are very complicated, which bottlenecks this technology. Aiming at simulating intensive-stage fracturing, coupled three-dimensional (3D) model multiple-fracture simultaneous propag...