Deep cryogenic heat treatment is assumed as a supplementary heat treatment performed on steels before the final tempering treatment to enhance the wear resistance and hardness of the steels. In this study, the effects of the deep cryogenic heat treatment on the wear behavior and corrosion resistance of the 1.2080 tool steel were studied using the wear testing machine and polarization and impeda...

berangan banana were treated with hot water at 50 ºc for 0 (control), 10, and 20 min and then kept at room temperature (25±2 ºc), 75-80% rh to observe the ripening progress. firmness and activity of cell wall degradation enzymes such as polygalacturonase (pg), pectin methylesterase (pme), and pectate lyase (pl) were determined for treated and untreated banana. the microstructure of banana peel ...

Ablative laser resurfacing is an effective treatment for atrophic acne scars. However, it often induces complications such as edema, prolonged erythema, scarring and hyperpigmentation. Therefore, a new concept of laser treatment called fractional photothermolysis has been designed to create microscopic thermal wounds to achieve skin rejuvenation treatment of atrophic acne scars. This study was ...

Introduction: There is a growing demand for non-invasive methods with no down time and minimal risk for facial skin rejuvenation and treatment of wrinkles. The Maximus system, based on TriLipo technology, combines radiofrequency and Dynamic Muscle Activation (DMA). We evaluated the safety and efficacy of the MaximusTM system for the treatment of facial wrinkles. Methods: Twenty women received 8...

Since the introduction of the technique reported by Skoog [1] and the study of Mitz and Peyronie [2] regarding the superficial musculoaponeurotic system (SMAS), the concept of facial rejuvenation has entered a new phase, going beyond the conventional subcutaneous facelift technique. However, Mitz and Peyronie [2] focused on the SMAS layer lateral to the zygomaticus major muscle—in other words, ...

In this paper we address the problem of preventive maintenance of operational software systems, an approach recently proposed to counteract the phenomenon of software \aging". We consider the so-called \software rejuvenation" technique 13], which consists in periodically stopping the software system and then restarting it in a \robust" state after a proper maintenance, and we propose a methodol...