Search results for "testing."

Biomechanical comparison between the modified rolling-hitch and the modified finger-trap suture techniques

2016

Purpose: The purpose of this study was to characterize the biomechanical effect of two grasping suture techniques used during ligament reconstruction: the modified rolling-hitch (MRH) and the modified finger-trap (MFT). Methods: Flexor profundus tendons were harvested from fresh pig hind-leg trotters. Each specimen was mounted on an electro-mechanic universal testing machine (Instron 3367). In half of all tendons (15 specimens), the suture was passed around the tendon following the MRH knot (Group 1). In the remaining half of all tendons (15 specimens), the suture was passed over a distance of 30 mm according to the MFT suture technique (Group 2). As per standard intra-operative technique, …

Simulation and Test of UAV Tasks With Resource-Constrained Hardware in the Loop

2021

Simulations are indispensable to reduce costs and risks when developing and testing algorithms for unmanned aerial vehicles (UAV) especially for applications in high risk scenarios like search and rescue (SAR) operations and post-disaster damage assessment. Many UAV applications require real-time tasks for which the timeliness of computations is fundamental. However, standard simulation tools are not guaranteed to run in sync with real-time events, leading to unreliable assessments of the ability of the target hardware to perform specific tasks. In this work we present a simulation and test system able to run UAV tasks on resource-constrained target hardware possibly adopted in these applic…

Evaluation of the force generated by gradual deflection of 0.016-inch NiTi and stainless steel orthodontic wires in self-ligating metallic and esthet…

2019

Background The purpose of this study was to evaluate the deflection forces of 0.016-inch Nitinol and stainless steel orthodontic wires, in association to different self-ligating brackets. Material and Methods Specimens were mounted in a clinical simulation model and evaluated in a Universal Testing Machine (INSTRON 3342), using a 10N load cell and ISO 15,841, as a protocol. Eight of these models were prepared, each one for the bonding of each set of self-ligating accessories to be tested: Damon Q, Damon Clear (Ormco), In-Ovation R, In-Ovation C (GAC), BioQuick, QuickClear (Forestadent), SmartClip and Clarity SL (3M). Data were subjected to One-way ANOVA, followed by Tukey tests (P<0.05). Re…

Sensitivity and negative predictive value of treadmill exercise stress testing for the diagnosis of catecholaminergic polymorphic ventricular tachyca…

2015

ARCHITECTURAL SURVEY TECHNIQUES FOR DEGRADATION DIAGNOSTICS. AN APPLICATION FOR THE CULTURAL HERITAGE

2021

Abstract. The great technological development in recent years in the field of architectural survey has made possible increasingly expeditious and less invasive investigations with the aim of acquiring a series of data related to the asset and fundamental for the protection of cultural heritage. In addition, the synergy between the various techniques represents an added value able, not only, to fill possible gaps and lacks arising from application limits of the instruments, but also to enhance the peculiarities of the same. This paper presents an integrated survey activity (range-based, image-based and IR thermography techniques) aimed at applying the combination and collaboration of multipl…

The infrared thermography control of the laser welding of amorphous polymers

2008

In laser welding technique, a real-time control of temperature distribution inside the irradiated materials is essential when attempting to optimize the process. For all laser welding methods that operate by the transmission principle, the difficulty of recording the developed temperature at the interface derives from the fact that materials to be welded are in contact throughout the entire process. In the present study, in order to overcome this issue, a contact-free method such the infrared thermography is used for surface temperature measurement. Corroborating this data with a numerical simulation of the temperature field evolution inside the components, an assessment of optimal process …

Industrial Scaled Automated Structural Testing with the Evolutionary Testing Tool

2010

Evolutionary testing has been researched and promising results have been presented. However, evolutionary testing has remained predominately a research-based activity not practiced within industry. Although attempts have been made, such as Daimler's Evolutionary Structural Test (EST) prototype, until now, no such tool has been suitable for industrial adoption. The European project EvoTest (IST-33472) team has been working from 2006 till2009 to improve this situation. This paper describes the final version of the Evolutionary Testing Framework (ETF) resulting from the EvoTest project. In specific we will present the EvoTest Structural Testing tool for fully automatic structural testing that …

Antidoping Science

2018

The ineffectiveness of antidoping programs in elite sport, largely due to human and political factors, is leading to a new resolve and greater transparency of antidoping authorities and those stakeholders interested in drug-free sport. The perception by the public, athletes, and the World Anti-Doping Agency (WADA) of antidoping science and current drug testing programs in elite sport varies widely from "ineffective" to "robust and reliable." Here, we discuss why a careful and considered reevaluation of the underlying premise of antidoping science is needed to bring this unique application of predictive/diagnostic science more in line with other areas of medicine. We show how the validity of…

Cuatro años de la versión computerizada del Examen de Inglés como segunda lengua (TOEFL)

2009

Este artículo trata señalar las dificultades a las que se enfrentan los candidatos cuando realizan el examen de inglés como lengua extranjera (TOEFL) basado en Internet. El objetivo es doble: por un lado ver cómo se puede sugerir cómo evitar problemas similares en plataformas que ya se están diseñando en España (Proyecto PAULEX, MEC HUM2007-66479-C02-01/FILO) y, por otro, poner de relieve el tipo de preparación que necesitan los estudiantes que realicen este examen para poder superar ciertos problemas estratégicos que actualmente encuentran dichos candidatos.

Accommodating Teachers Attitudes Towards New Educational Testing Paradigms Through the OPENPAU Project

2015

Abstract Testing is an issue of increasing importance. While for many teachers language learning should be communicative; in fact, they expect their students to provide evidence of their knowledge. Thus, there is a clear mismatch on the approach to language teaching and language testing. As a consequence, there is an evident need change the testing paradigms. Purpose of the paper: This paper suggests guidelines that are currently researched in the OPENPAU project to change the teachers’ perspective towards oral testing. Sources of Evidence: Evidence was obtained through the interaction of four expert teachers with experience in oral testing. Analysis and results: The study indicates that te…