Strict positive realness (SPR) is an important concept in absolute stability theory, adaptive control, system identification, etc. This paper characterizes the strictly positive real (SPR) regions in coefficient space and presents a robust design method for SPR transfer functions. We first introduce the concepts of SPR regions and weak SPR regions and show that the SPR region associated with a ...

16. Abstract In a previous research project [SPR 2418; "Study of the performance of acoustic barriers for Indiana toll roads,"] the influence of environmental factors and of advanced sound barrier concepts was investigated. The presence of temperature gradients over pavements was found to have a strong influence on sound propagation. Refraction of sound waves emitted by tire-road interactions i...

MOTIVATION Subtree prune and regraft (SPR) is one kind of tree rearrangements that has seen applications in solving several computational biology problems. The minimum number of rooted SPR ((r)SPR) operations needed to transform one rooted binary tree to another is called the (r)SPR distance between the two trees. Computing the (r)SPR distance has been actively studied in recent years. Currentl...

Substance P receptor (SPR), which plays a key role in pain transmission, is known to undergo rapid agonist-dependent desensitization and internalization. The present study shows that human SPR undergoes agonist-dependent phosphorylation in intact cells. Immunoprecipitation of SPR from 32Pi-labeled Chinese hamster ovary cells stably expressing human SPR (CHO-hSPR) indicates that substance P (SP)...

Abstract A surface plasmon resonance (SPR) biosensor based on a graphene nanoribbon array in microfluidic flow cell operating flow-over format is studied. The optical response of the numerically obtained by using rigorous couple wave analysis (RCWA). performance described terms limit detection, which calculated as function key dimensional parameters, such strip thickness and width, fill fractio...

Background Antibiotic prescribing by GPs in the UK has declined since 1995. Aim We investigated whether general practices that issue fewer antibiotic prescriptions to patients presenting with acute respiratory infections had lower consultation rates for these conditions. Design of study Retrospective data analysis. Setting UK general practice. Method We analysed data from the General Practice R...

This paper reports on a further development of an image simulation chain, and in particular, the inclusion of contrast degradation across an image using scatter to primary ratios calculated using Monte Carlo simulation. The Monte Carlo technique, using the Geant4 toolkit, has been implemented to model the scatter conditions when imaging the CDMAM phantom with commercial digital mammography. Obs...

In this report, we tune the surface plasmonic behavior of Au nanoplates depending on the morphology of the Pt shell in which Pt is considered as a less optically inactive element. We describe the synthesis of flat Au nanoplates coated with Pt via rim-preferential or uniform growth methods. Depending on the site-selective growth of Pt on core Au nanoplates, the aspect ratio of the resulting Au@P...