Search results for "testi"
showing 10 items of 4607 documents
Traumatic Isolated Intramural Duodenal Hematoma Causing Intestinal Obstruction
2015
A 21-year-old man was admitted 36 hours after a blunt abdominal trauma occurred during a sporting competition. He complained of colic epigastric abdominal pain, nausea, and vomiting. He was hemodynamically stable; blood counts and metabolic panel were normal. Abdominal CT showed an intestinal obstruction caused by an 8 x 6 x 11 cm hematoma on the right lateral duodenal wall without signs of active bleeding (Figure 1). He underwent gastric decompression and started total parenteral nutrition and intravenous pump inhibitors. Esophagogastroduodenoscopy (EGD) performed 48 hours after the diagnosis showed an extrinsic compression by a bluish obstruction in the first part of the duodenum resembli…
Design, assembly and characterization of silicide-based thermoelectric modules
2016
ID: 1143 In: Energy conversion and management, 13-21. Summary: Highlights•Novel silicide-based thermoelectric modules were experimentally investigated.•The modules produced high power of 1.04 W at 405 °C and 3.24 W at 735 °C.•An estimated module efficiency of 5.3% represent the highest reported for silicide systems.AbstractSilicides have attracted considerable attention for use in thermoelectric generators due mainly to low cost, low toxicity and light weight, in contrast to conventional materials such as bismuth and lead telluride. Most reported work has focused on optimizing the materials properties while little has been done on module testing. In this work we have designed and tested mod…
IMPORTANCIA DE LA ENFERMERA ESCOLAR EN LA DETECCIÓN DE LA NEOPLASIA TESTICULAR
2011
En este artículo planteamos una revisión de la literatura en diferentes bases de datos (CINAHL, CUIDEN, MEDLINE) con el fin de valorar la importancia de la neoplasia testicular en la adolescencia y el papel fundamental del profesional de enfermería-, concretamente de la enfermera escolar, en la detección precoz de esta patología. Una vez analizado el tema y tras tomar conciencia de la importancia de enseñar prácticas de autoexploración testicular correctas, se ha concluido que la enfermera escolar no debe desarrollar únicamente una actividad asistencial, sino que entre sus funciones se debe contemplar la promoción de la salud y la prevención del cáncer testicular. Dentro del proceso educado…
Conformable eddy current array delivery
2016
The external surface of stainless steel containers used for the interim storage of nuclear material may be subject to Atmospherically Induced Stress Corrosion Cracking (AISCC). The inspection of such containers poses a significant challenge due to the large quantities involved; therefore, automating the inspection process is of considerable interest. This paper reports upon a proof-of-concept project concerning the automated NDT of a set of test containers containing artificially generated AISCCs. An Eddy current array probe with a conformable padded surface from Eddyfi was used as the NDT sensor and end effector on a KUKA KR5 arc HW robot. A kinematically valid cylindrical raster scan path…
PERFORMANCE ASSESSMENT IN SCIENCE NATIONAL LEVEL DIAGNOSTIC TESTS
2018
National Centre of Education of the Republic of Latvia in 2016 lunched national project of the renewal of the curriculum for education funded by the European Social Fund. One of the key priorities of successful implementation of the new education curriculum is transforming national level assessment system.Assessment system measuring student performance must meet different requirements from the traditional measurement instrument assessing content knowledge.Analysing 2017 national level science assessment diagnostic tests of 15-16 years old students, it is impossible to discriminate student different level of performance. Student, demonstrating singly stored pieces of knowledge, integrating p…
Testing mechanical characteristics of chestnut stakes used in bed sills for stream restoration
2017
Using of wood elements for constructing bed sills in Mediterranean streams, where the banks are not protected by tree vegetation, needs an evaluation of biological and mechanical characteristics for evaluating both the wood durability and the effectiveness of the stream restoration project. Very few studies have dealt both with the decay of mechanical characteristics of wood elements employed for stream restoration works and with the changes over time of physical and chemical wood characters. In this paper, for a wood and stone bed sill located in a stream having no shaded banks, the changes of physical and chemical characters detected after 12, 18, 24, 30, 36, 42 and 48 months on chestnut …
Eddy current flaw detection with neural network applications
2005
Abstract Eddy current inspection is a fast and effective method for detecting and sizing most of the flaws in conducting materials. The inverse problem solution, i.e., inferencing about possible defect, based on the measurement signal from the eddy current probe, is a difficult task. In this paper an implementation of artificial neural networks for multi-frequency eddy current testing on conducting layers (aluminum, copper) and ferrous tubes has been presented.
Robotic path planning for non-destructive testing of complex shaped surfaces
2015
The requirement to increase inspection speeds for non-destructive testing (NDT) of composite aerospace parts is common to many manufacturers. The prevalence of complex curved surfaces in the industry provides significant motivation for the use of 6 axis robots for deployment of NDT probes in these inspections. A new system for robot deployed ultrasonic inspection of composite aerospace components is presented. The key novelty of the approach is through the accommodation of flexible robotic trajectory planning, coordinated with the NDT data acquisition. Using a flexible approach in MATLAB, the authors have developed a high level custom toolbox that utilizes external control of an industrial …
Dynamic characterization for the dielectric electroactive polymer fundamental sheet
2012
Published version of an article published in the journal: International Journal of Advanced Manufacturing Technology. Also available from the publisher at: http://dx.doi.org/10.1007/s00170-012-4423-6 A study into the appropriateness of characterizing the dynamics of the dielectric electroactive polymer (DEAP) fundamental sheet has been performed. Whereby a model describing the dynamics of the DEAP fundamental sheet is developed, parameters of the models are determined using experimental/simulation results, and verification has been conducted to determine the precision of the dynamic model. The precision for the DEAP sheet-obtained dynamic model could not be verified unless some parameters c…
Compressive sensing for direct time of flight estimation in ultrasound-based NDT
2017
This paper presents an approach for estimation of ultrasonic time-of-flight (TOF) within a Non Destructive Testing (NDT) and Structural Health Monitoring (SHM) context. The presented method leverages recent advances in the field of Compressive Sensing (CS), which makes use of sparsity in a transform domain of a signal in order to reduce the number of samples required to store it. CS achieves this through a two key ideas: random matrix projections, and l1-penalised linear regression. In this case, sparsity arises from the observation that in a pulse-echo ultrasound test, the number of echoes is relatively small compared to the number of measurement points in a waveform. This sparsity is evid…