Theoretically, conformance yields interworking and interoperability. However, experience has shown problems even when systems are conforming to the same standard. By having a glimpse at its methodology, conformance testing addresses the tested system as an isolated entity. Prior to real procurement, on the other hand, network operators apply a set of modifications that make a system applicable ...

Accepted acoustic testing standards are available; however, they require specialized hardware and software that are typically out of reach economically to the occasional practitioner. What is needed is a simple and inexpensive screening method that can provide a quick comparison for rapid identification of the top candidates. This research reports on the development of an acoustical rapid-test ...

In this paper we present a novel approach to delay-testing of VLSl logic chips based on the level-sensitive scan design (LSSD) methodology. The objective of the delay test is to reduce significantly the failures of multi-chip modules at system integration test while minimizing the complexity and cost of subassembly testing. Because system timing data are used to derive test specifications, the ...

Recently, the number of elderly persons with dementia has been increasing. In the past, we proposed a dementia evaluation system using daily conversations and developed the system with a conversational robot. However, the current system is not ready for practical use because it can only evaluate time/geographical orientation and short-term memory, and some methods to evaluate other orientations...

the ability to perform rolling contact fatigue (rcf) experiments in wheel–rail material is provided by a new small–scale test rig, manifesting the actual dynamic behaviour of the railway system. in this paper, a multi-body dynamics (mbd) model is proposed, simulating the vibration behaviour of the prescribed rig. the new testing facility is modelled using a three-dimensional model of the vehicl...

the present study investigates the possibility of using poloxamers as solubility and dissolution rate enhancing agents of poorly water soluble bioactive constituent patchouli alcohol (pa) that can be used for the preparation of immediate release pellets formulation. two commercially available grades poloxamer 188 (p 188) and poloxamer 407 (p 407) were selected, and solid dispersions (sds) conta...

ObjectivesThis study outlines the development of a new method (split component synthesis; SCS) for meta-analysis diagnostic accuracy studies and assesses its performance against commonly used bivariate random effects model.MethodsThe SCS summarizes study-specific odds ratio (on ln(DOR) scale), which mainly reflects test discrimination rather than threshold effects, then splits summary into part...

Methods are presented for detecting differential expression using statistical hypothesis testing methods including analysis of variance (ANOVA). Practicalities of experimental design, power, and sample size are discussed. Methods for multiple testing correction and their application are described. Instructions for running typical analyses are given in the R programming environment. R code and t...