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Measuring Methods (measuring + methods)
Selected AbstractsAre we reaching the limits or our ability to detect skin effects with our current testing and measuring methods for consumer products?CONTACT DERMATITIS, Issue 6 2005Miranda A. Farage Testing for potential adverse skin effects is a key part of both the overall safety assessment for many consumer products and the evaluation of potential product improvements in mildness. Whilst modern tissue and paper products (i.e. facial tissues, catamenial products, baby wipes and baby and adult diapers) are inherently very mild to skin, current test methodology may not be robust enough to evaluate future improvements in such products. This article provides a commentary on several technologies we have been exploring to improve the sensitivity of test methods for tissue and paper products. The focus has been on three approaches: (i) further exaggerating exposure conditions using novel approaches to sample application, (ii) increasing the sensitivity of the manner in which we score for irritant effects, either visually or via instrumentation and (iii) quantitatively measuring additional endpoints, i.e. subjective sensory effects. [source] In Situ Damage Detection With Acoustic Emission Analysis During Cyclic Loading of Wire Reinforced EN AW-6082,ADVANCED ENGINEERING MATERIALS, Issue 7 2010Kay André Weidenmann In the field of lightweight construction, hybrid structures such as reinforced metal matrix composites are highly qualified materials. The direct composite extrusion process allows for continuous manufacturing of wire reinforced aluminum matrix profiles. The aim is to increase the stiffness and specific strength in a way that the composite material shows better mechanical properties than the single matrix material. To determine and locate damage evolution during cyclic loading of spring steel reinforced EN AW-6082 matrix the acoustic emission analysis is used. Furthermore it allows for getting more information about the damage mechanisms during fatigue of the matrix and the final failure of the reinforcing element. The current work also includes the determination of damage evolution using strain measuring methods. [source] Messunsicherheit in der WerkstoffprüfungMATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK, Issue 5 2007T. Polzin Dr.-Ing. Uncertainty; tensile test; charpy test; hardness test Abstract Bei der Werkstoffprüfung muss bei jedem Messwert die jeweilige Messunsicherheit angegeben werden. Aus der 1995 erschienenen GUM [1] wurde 2000 der Uncert Report für verschiedenen Messverfahren entwickelt und als Code of Practice (COP) [2,4]. veröffentlicht. Diese sollen in Zusammenhang mit den in den Normen empfohlenen Verfahren und der praktischen Umsetzung dargestellt werden. Measurement uncertainty in testing of materials For the testing of materials the respective uncertainty has to be indicated for each measured value. From the 1995 published GUM [1] 2000 the Uncert report for different measuring methods was developed and published as Code of Practice (COP) [2,4]. These are to be represented in connection with the procedures recommended in the standards and the practical implementation. [source] Optimised monitoring of inflammation suppressive therapy (IST) in uveitisACTA OPHTHALMOLOGICA, Issue 2009CP HERBORT Purpose The array of inflammation suppressive therapies (IST) has increased trumendously in the last two decades including the availability of biological molecules with potent immunomodulatary activities as well as new immunosuppressive agents. In parallel measuring methods for intraocular inflammation have become available allowing much more acurate monitoring of the evolution of inflammation and its response to therapy. In addition to the traditionally used fluorescein angiography (FA), laser flare photometrry (LFP), indocyanine green angiography ICGA) and optical coherence tomography (OCT) are among the new investigational methods that have become available, each of them allowing us to establish inflammatory activity with increased precision and to explore compartments previously poorly accessible. Methods The advantages of each method will be put forward. Illustrative cases will be taken as examples to show the degree of precision obtained by combining the different methods presently at our disposal for the follow-up and monitoring of inflammation suppressive treatment. Results These cases will show that the presently available tools for optimal monitoring of intraocular inflammation allow the clinician to be better aware of the level of inflammatory activity and to better adapt his treatment. Conclusion Not only he availability of potent new therapies but also the possibility to follow more precisely intraocular inflammation with new precise devices has certainly changed the outcome of uveitis cases in recent years. [source] | |||||||||||||