OBJECTIVE To enable early prediction of strong traction force vacuum extraction. DESIGN Observational cohort. SETTING Karolinska University Hospital delivery ward, tertiary unit. POPULATION AND SAMPLE SIZE Term mid and low metal cup vacuum extraction deliveries June 2012-February 2015, n = 277. METHODS Traction forces during vacuum extraction were collected prospectively using an intell...

Background: with the advent of new adhesive materials in dentistry, it has become important to measure regional bond strength along the length of the canal of human teeth to assess the bond strength of resin cements to endodontically treated teeth. This study aimed to investigate the effect of post space region (coronal, middle and apical) and the mode of polymerization of the resin cement on t...

This paper investigates the performance of different hybrid push-pull systems with a decoupling inventory at the semi-finished products and reordering thresholds. Raw materials are ‘pushed’ into the semifinished product inventory and customers ‘pull’ products by placing orders. Furthermore, production of semi-finished products starts when the inventory goes below a certain level, referred to as...

We investigated the static and cyclical strength of parallel and angulated locking plate screws using rigid polyurethane foam (0.32 g/cm(3)) and bovine cancellous bone blocks. Custom-made stainless steel plates with two conically threaded screw holes with different angulations (parallel, 10° and 20° divergent) and 5 mm self-tapping locking screws underwent pull-out and cyclical pull and bending...

The pull-in voltage of a parallel plate electrostatic transducer is used to determine the amount of over-etching in fabricated devices. A detailed analysis of the capacitor behaviour over the full displacement range yields a model, which is used to describe the relation between over-etching and measured pull-in voltage. SEM photos confirm the over-etching measurement based on pull-in voltage. T...

It is well known that the use of slotted stators in motors produces undesirable effects, such as magnetic flux distortion, additional losses, ripple torque, and vibration. However, a large number studies pay more attention to stator slots slot wedges (MSW) asynchronous permanent magnet motors, ignoring same problems capacity high voltage line start synchronous (HVLSPMSM). In order disclose effe...

AIM To evaluate the cytological diagnostic capacity and sample quality of the slow-pull technique and compare them with different suction techniques. METHODS From July 2010 to December 2015, 102 patients with pancreatic solid lesions who underwent endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) with 22-gauge needles were retrospectively evaluated. EUS-FNA diagnosis was based on ...

In this paper, the potential of superelastic shape memory alloy (SE-SMA) wire embedded architectures to increase quasi-static indentation properties a laminated glass/epoxy composite material was evaluated. Three types SE-SMA configurations namely straight independent, meshed and anchored wires were in laminates via vacuum bag resin infusion technique. Throughout investigation, changes behavior...