Epiretinal membranes are commonly encountered in retinal practice, and they result in decreased vision. The present work addresses whether peeling of the internal limiting membrane is necessary during vitrectomy for macular pucker. We performed a retrospective analysis to investigate the effects of "single peeling," in which only the epiretinal membrane was peeled, and "double peeling," in whic...

Aluminum alloys are vulnerable to penetrating and peeling failures in seawater and preparing a barrier coating to isolate the substrate from corrosive medium is an effective anticorrosion method. Inspired by the lotus leaves effect, a wetting alloy surface with enhanced anticorrosion behavior has been prepared via etch, deposition, and low-surface-energy modification. Results indicate that exce...

The increasing programmability of modern graphics hardware enables acceleration of rendering methods other than traditional rasterization. In this paper, we discuss the implementation of a ray casting-based volume renderer on graphics hardware using vertex and fragment programs. We also show how ray casting on hardware enables easy implementation of volume rendering extensions that make use of ...

amyloidoma or amyloid tumor is a tumor-like localized deposit of amyloid encountered occasionally in association with multiple myeloma, various chronic inflammatory diseases and primary amyloidosis. amyloid tumors unassociated with plasmacytoma or other disease are extremely rare in soft tissues and few cases in various situations have been reported. histologic examination discloses amorphous e...

This paper presents a technique for identification of solid materials by localized microwaves. A small hotspot (~1-mm) created by thermal-runaway instability on the material surface is further radiated by the localized microwaves hence ejecting a plasma plume. Its atomic emission spectrum is detected and analyzed by an optical spectrometer for element identification, as in the known laser-induc...

the term globalization undoubtedly has affected all parts of humanity life in current century. globalization as a comprehensive phenomenon has influenced economical, political, social and cultural aspects of our societies. contemporary architecture as a multidimensional category is depended on various factors and needs to be pursued in different fields, in order to reach to a perfect comprehend...

Ultrashort-pulsed laser direct writing can be useful for a 3D material processing. Especially the localized form-birefringence originated from self-assembled nanostructure in isotropic material (i.e. SiO2 and GeO2 glass) was demonstrated.

in spite of the fact that cementitious and concrete materials are mainly used on a large scale and inhuge quantities for roads, dams, bridges and building constructions, the mechanical behavior of thesematerials depends to a great extend on structural elements and phenomena which are effective on amicro and nanoscale. although this is well known by researchers, material producers and engineersf...