AIM To evaluate the value of pre-treatment 18F-FDG PET/CT in patients with HCC following liver radioembolization. METHODS We identified 34 patients with HCC who underwent an FDG PET/CT scan prior to hepatic radioembolization at our institution between 2009 and 2013. Patients were seen in clinic one month after radioembolization and then at 2-3 mo intervals. We assessed the influence of FDG tu...

In this study, the corrosion performance of platinum/ruthenium/nitrogen doped diamond-like carbon (PtRuN-DLC) thin films deposited on p-Si substrates using a DCmagnetron sputtering deposition system in a 0.1M NaCl solution was investigated using potentiodynamic polarization test in terms of film thickness. Theeffect of thefilmthickness on the chemical composition, bonding structure, surfacemorp...

PS400 is a multi-component alloy developed by NASA and intended for high temperature bearing applications. This study reports on four mating surfaces, namely bulk 4130 steel, diamond-like carbon (DLC), polycrystalline diamond, molybdenum boride cobalt chrome coatings sliding against coating, the best performing tribopair at 25 500 °C was identified. The range speeds simulate extreme conditions ...

Abstract In this work, we evaluated the effect of counter-body material (the same or dissimilar) and contact configuration (moving stationary body), at similar tribological conditions, on tribochemical nanotopography characteristics adsorbed surface films. Zinc dialkyldithiophosphate (ZDDP), best performing anti-wear additive, was used in self-mated steel/steel DLC/DLC contacts, which were comp...

Abstract Current tribocorrosion research of metallic materials and their surface protective coatings mainly focuses on short-term properties, with test time 0.5–2.0 h a sliding distance 50–500 m, which may significantly deviate from the practical long-term service condition thus cause catastrophe marine equipments. In this study, three carbon-based multilayer (Ti/DLC, TiC x /DLC, Ti—TiC /DLC) w...

A new and exciting technique for performing DLC deposition on the inside of cylindrical substrates, in particular pipes, will be described. Using the hollow cathode effect (HCE), a high density plasma can be generated within such cylindrical substrates by using Plasma Enhanced Chemical Vapor Deposition (PECVD). As the pipe itself is the vacuum chamber, such high density plasmas can be maintaine...

Ti-TiC-TiC/DLC gradient nano-composite films have been prepared on the NiTi substrates by the technique of plasma immersion ion implantation and deposition (PIIID) combining with plasmaenhanced chemical vapor deposition (PECVD). The influence of C2H2 flow rate ranging from 30sccm to 50sccm on the chemical structure, microstructure, mechanical properties and corrosion resistance of resulting thi...

REASONS FOR PERFORMING STUDY A previous preliminary study demonstrated the potential of distal limb cryotherapy (DLC) for preventing laminitis. Clinically, DLC must be effective for periods longer than 48 h and the preventive effect must extend beyond its discontinuation. OBJECTIVES To evaluate the effect of DLC, applied during the developmental phase of induced laminitis, on the severity of ...

Diamond-like carbon (DLC), a thin amorphous carbon film, has many uses in tribological systems. Exploiting alternative substrates and interlayers can enable control of the hardness and modulus of the multi-layer system and improve wear or friction properties. We utilise XPS and AFM to examine DLC concurrently coated on an epoxy interlayer and a steel substrate by plasma enhanced chemical vapour...