Different methods have been evaluated for manufacturing the porous Ti6Al4V alloys according to decreasing stress shielding phenomenon and increasing mechanical compatibility between the metallic components and the host tissue. For this purpose, in this work Ti6Al4V alloy chips were pressed under 400 MPa pressure and then samples were categorized and heated into two groups at 1000 and 1150℃ unde...

Elbow arthroplasty is performed less often than hip or knee arthroplasty. The most common reason for patients requiring elbow arthroplasty is chronic inflammatory joint disease, usually rheumatoid arthritis.1 Two main types of prostheses exist, linked and nonlinked. Prosthesis fixation in bone is achieved with bone cement in almost all linked and non-linked prostheses.2 Cement restrictors preve...

introduction: osseous tissue developes via either endochondral (ec) or intramemberanous (im) ossification. the bone matrix gelatin (bmg) from both developmental types can induce bone formation when implanted in the muscle of the rat. in this research, the resorption of im-bmg particles, inductivity of im-bmg and the nature of heterotropic calcification was evaluated at implantation site. materi...

Abstract Background This study was designed to evaluate the effect of mastoid cavity obliteration with bone chips and reconstruction canal wall tragal cartilage after down tympanomastoidectomy ossiculoplasty in same session. Sixty-three patients cholesteatoma underwent technique mentioned above; were followed for 1 year postoperative. Results No problems, median preoperative air gap 32.86 ± 6.2...

background & aim: chemicals antioxidants and lipid oxidation products are known as cancer-causing factors in food systems. in this study, the effect of essential oil from heracleum lasiopetalum fruits on lipid oxidation and physicochemical properties of potato chips in comparison with commercial antioxidant has been investigated.experimental: the essential oil of h. lasiopetalum extracted u...

Different methods have been evaluated for manufacturing the porous Ti6Al4V alloys according to decreasing stress shielding phenomenon and increasing mechanical compatibility between the metallic components and the host tissue. For this purpose, in this work Ti6Al4V alloy chips were pressed under 400 MPa pressure and then samples were categorized and heated into two groups at 1000 and 1150℃ unde...

Ultrasonically-assisted bone cutting with high precision has manyadvantagesfororthopedic surgeries. However, irregular crack propagation, large fractured chips, and surface damagemay occurduring the processdue to brittleness anisotropy of cortical bone. These can be minimized by optimizing operating parameters tool; frequency, amplitude, speed, depth, temperature, inconsideration toughening mec...

This study was Characteristics of manufacture particleboard (PB) from sedar and wood slab of impregnated with UF. The chips were divided into coarse chips with dimensions of 2-4 mesh and fine chips of 30–60 mesh, urea formaldehyde (UF) resin solution at concentrations of 45 %, and 55% sprayed on these chips about 1 min until 10% to dry weight chips, they were dried under 5% moisture in a dram d...

nowadays network-on-chips is used instead of system-on-chips for better performance. this paper presents a new algorithm to find a shorter path, and shows that genetic algorithm is a potential technique for solving routing problem for mesh topology in on-chip-network.