PURPOSE To evaluate the safety and efficacy of the porous polyethylene multipurpose conical orbital implant for use in evisceration. METHODS A retrospective review of 31 eyes that underwent evisceration and received the multipurpose conical orbital implant. The orbits were evaluated at 1 week, 1 month, and 6 months after final prosthetic fitting for implant exposure, superior sulcus deformity...

This paper is an investigation of completely mechanical quick changeable joints for multipurpose explosive ordnance disposal (EOD) robots. With the assistance of a quick changeable joint, an ordinary EOD robot becomes a multipurpose robot with an end effector which can be switched during the task. This exchangeable end effector permits the robot to perform more complex duties. Making the joint ...

The purpose of this in vitro study was to investigate the effect of 1% NaOCl (15 min) and MTAD on dentine shear bond strength, when using the Scotchbond XT(3M ESPE) adhesive system. Thirty extracted, human, third molar teeth were embedded into metal rings with self-curing acrylic resin. The teeth were ground wet using 600-grit silicone-carbide paper to expose superficial dentine. The samples we...

The two-fold aims of this study were: (1) to evaluate the microtensile bond strengths of different adhesive systems to sclerotic and sound palatal dentin; and (2) to observe the respective resin-dentin interfaces. Thirty extracted human incisor teeth were divided into two groups. Group I comprised sclerotic defects in the palatal zone. Group II comprised sound palatal dentin surfaces as control...

This paper describes a knowledge-based useroriented interface system which is unique in its combined use of data base, graphics, and AI technologies. All of the data presented to the user, as well as all of the data input by the user, is maintained and used as abstract “objects” using an AI object-oriented knowledge representation approach. However, the system employs a relational data base as ...

A novel audio protection and authentication scheme is proposed in this paper. By quantizing a host audio’s FFTcoefficients as masking threshold units (MTUs), two complementary watermarks are designed and embedded using our cocktail watermarking method. For audio protection, high robustness can be achieved; whereas for audio authentication, tampered regions can be detected. Both of the above men...

OBJECTIVES To evaluate the effects of dentin pretreatment and temperature on the bond strength of a universal adhesive system to dentin. MATERIAL AND METHODS Ninety-six extracted non-carious human third molars were randomly divided into 12 groups (n=8) according to Scotchbond Universal Adhesive (SbU) applied in self-etch (SE) and etch-and-rinse (ER) mode, adhesive temperature (20°C or 37°C) a...

The purpose of this study was to evaluate acid etchant penetration on dentin bonding agents and its effect on the composite resin bond strength. Forty primary molars were mounted, then the buccal and lingual surfaces were prepared into dentin. The teeth were divided into four groups of 10, and four dentin bonding agents were placed on the buccal and lingual surfaces of exposed dentin, as recomm...