Since the insulators of transmission lines are exposed to different environmental conditions, it is important task to study insulators performance under different conditions. In this paper, silicone rubber insulators performance under different environmental conditions including rainy, icy, salt and cement are proposed and exactly is studied. Electric fields (E-fields) and voltage distributions...

Though the Carpentier Edwards PERIMOUNT Magna Ease valve is a bioprosthesis with documented excellent haemodynamics and easy implantability, this valve has a gap between the cobalt-chromium-nickel alloy stent and silicone sewing ring. This gap, which is widest just below each of the three commissural struts, lacks silicone and leaves the two-layer polytetrafluoroethylene fabric unsupported and ...

BACKGROUND A pneumatic tourniquet is generally used to achieve a bloodless operation field in hand surgery. However, this has changed with tumescent solution-based wide-awake surgery. This study is a preliminary prospective case series study to elaborate the formula and indications of the tumescent technique in hand surgery without a tourniquet. METHODS Seven patients (age range, 4 months to ...

Ring removal is indicated in a number of clinical circumstances to manage or prevent tourniquet effect of the digit. A ring made from hardened metal may defy commonly known methods of removal. We reported a case of unusual difficulty in removing a ring of hardened metal composition using a dental drill. We believed the unusual circumstances of this case is likely to be repeated in some other cl...

We have examined the effect of EMLA on tourniquet pain and compared it with those of subcutaneous ring anaesthesia (SRA), a double cuff technique and a single cuff (control) during i.v. regional anaesthesia. The durations of analgesia (mean 57.3 (SD 16.6) min) and tolerance (72.3 (13.9) min) to tourniquet inflation in the EMLA group were comparable to those in the SRA group (54.1 (16.2) min and...

BACKGROUND The purpose of this prospective, interventional, comparative case series was to evaluate the efficiency and feasibility of a disposable sutureless silicone lens ring for corneal contact lens stabilization during combined 23-gauge vitrectomy and cataract surgery. METHODS We developed a ring consisting of a single silicone component with three footplates along the ring margin to fit ...

OBJECTIVES The feasibility of providing prolonged and controlled release of the experimental non-nucleoside reverse transcriptase inhibitor TMC120 from a silicone vaginal ring in quantities sufficient to maintain a vaginal concentration offering protection against heterosexual HIV transmission was investigated. METHODS Core-type, silicone elastomer vaginal rings containing TMC120 were manufac...

conclusions this study showed that a pneumatic arm tourniquet as an adjunct to ivra provides acceptable analgesia following the deflation of the double- cuff tourniquet for relieving surgical pain. results the mean operation time after the deflation of the double-cuff tourniquet was 20.12 ± 6.1 minutes. moreover, the mean nrs for the post-deflation time was insignificant (nrs = 2), and only one...

introduction: ischaemic-reperfusion nerve injury has been suggested as the mechanism for post-tourniquet limb paralysis. as dexamethasone (dex) has been shown to prevent ischaemic-reperfusion process in some tissues, we tested the hypothesis that this drug would reduce tourniquet induced nerve injury. methods: 36 male wistar rats (200-250 gr) were chosen and divided randomly into 6 equal groups...