The structure formation and electrical conductivity of poly[diglycidyl ethers bisphenol-F (DGEBF)]/poly[dicyclopentenyloxyethyl methacrylate (DPOMA)]/silver (Ag) filler composites were investigated. DGEBF/40 wt% DPOMA blends showed low viscosity formed co-continuous phase structures at the micrometer scale via in situ radical polymerization followed by anionic DGEBF. Scanning electron microscop...

in this paper the control algorithm for controlled civil structures subjected to earthquake excitation is thoroughly investigated. the objective of this work is the control of structures by means of the pole placement algorithm, in order to improve their response against earthquake actions. successful application of the algorithm requires judicious placement of the closed-loop eigenvalues from ...

background: the accuracy of pedicle screw placement is essential for lumbar and thoracolumbar spine fracture fixation. purpose: the aim of the present study was to assess the accuracy of the pedicle screw placement with conventional c-arm fuoroscopy-guided in these patients. methods: a retrospective review identified patients who underwent operative management with thoracolumbar instruments at ...

determining the optimal location of wells with the aid of an automated search algorithm is a significant and difficult step in the reservoir development process. it is a computationally intensive task due to the large number of simulation runs required. therefore,the key issue to such automatic optimization is development of algorithms that can find acceptable solutions with a minimum number of...

the anterior maxilla presents a challenging milieu interior for ideal placement of implants because of the compromised bone quality. with the advent of intraoral bone harvesting and augmentation techniques, immediate implant placement into fresh extraction sockets have become more predictable. immediate implant placement has numerous advantages compared to the delayed procedure including superi...

Localized interface shear strength failures have occurred during placement and spreading of cover soils on top geosynthetic layers slopes using construction equipment, typically bulldozers (‘dozers’). The mechanisms these types are rarely considered evaluated in design reports calculations. present paper intends to improve upon the analyses presented previous literature references by providing ...

Field experiments were carried out at the Department of Agronomy Poznań University Life Sciences to determine effect depth NP fertilization placement in maize cultivation on number plants after emergence. The adopted assumptions verified based a six-year field experiment involving four depths fertilizer application (A1—0 cm (broadcast), A2—5 (in rows), A3—10 A4—15 rows)). objective this study w...

Background: There is no data on the characteristics of patients with localized scleroderma in Iran. Objective: In order to determine the age, sex and type distribution of localized scleroderma in Iran, this study was done on patients referred to Boo-Ali Hospital in Tehran in 1995-1999. Patients and Methods: This study was done as an existing data study on 39 patients with localized scleroderma ...