The heating of the fittings substation is a major hidden danger affecting safe and stable operation substation. As load substations has increased, several defects joints have been found during daily inspections live inspections. Facing joints, maintenance personnel often use methods such as dismantling equipment to polish oxide layer, applying conductive paste on contact surface, tightening con...

Previous studies have shown that limits on loan-to-value (LTV) and debt-to-income (DTI) ratios can stabilise the housing market, and that tightening these limits tends to be more effective than loosening them. This paper examines whether the relative effectiveness of tightening vs. loosening macroprudential measures depends on where in the housing cycle they are implemented. I find that tighten...

introduction: the purpose of this study was to compare the accuracy of the torque wrenches used in different dental implant systems. methods: we evaluated 42 torque wrenches used in different dental clinics in mashhad, iran, using a digital torque meter (mark 10). high (25, 30 and 35 n·cm) and low (15 n·cm) levels of torque were examined. ten tests were performed on each wrench, and the mean va...

Abstract—The performance of the tightening equipment will decline with the working process in manufacturing system. The main manifestations are the randomness and discretization degree increasing of the tightening performance. To evaluate the degradation tendency of the tightening performance accurately, a complexity measurement approach based on Kolmogorov entropy is presented. At first, the s...

IIn recent years, policymakers have generally relied on regulatory policies to address financial stability concerns. However, our understanding of these policies and their efficacy in curbing housing prices is limited. In this paper, we examine the impact of three regulatory tools i.e. LTV (loan to value) ratio, reserve requirement rate (RR), and capital adequacy ratio (CAR) on housing price in...

Bolted connections are widely used in parallel plates and flanged joints to axially lock using the preload generated by tightening torque constrain radial movements of flanges surface friction between mating surfaces. The depends on micro-asperities surfaces; under influence vibrations other external loads, these asperities tend deform over time, resulting failure connection. Bondura expanding ...

PURPOSE Pullout strength of screws is a parameter used to evaluate plate screw fixation strength. However, screw fixation strength may be more closely related to its ability to generate sufficient insertion because stable nonlocked plate-screw fracture fixation requires sufficient compression between plate and bone such that no motion occurs between the plate and bone under physiological loads....

For the first time in the literature, the paper considers computational aspects of concave cost virtual private network design problems. It introduces careful bound tightening mechanisms and computationally demonstrate how such bound tightening could impressively improve convex relaxations of the problem. It turns out that, incorporating such bound tightening with a general solution approach co...

Purpose. Loosening and fracture of abutment screws are one the most common complications in implant-retained fixed prostheses. Thus, applying proper tightening torque to screw is important for preventing loosening effect ensuring stability implant fixture-abutment connection. Therefore, this study, we aimed investigate on connection a two-piece zirconia system using finite element analysis (FEA...