Squeeze film effects between two concentric cylinders are common and important in many mechanical systems. The models for cylindrical squeeze force vibrating system with have not been well understood. In this paper, we model a starting from the simplification of full Navier–Stokes equations then get an expression force. We study influence harmonic exciting on spring damped vibrator effect by es...

A number of different approaches have been described to identify proteins from tandem mass spectrometry (MS/MS) data. The most common approaches rely on the available databases to match experimental MS/MS data. These methods suffer from several drawbacks and cannot be used for the identification of proteins from unknown genomes. In this communication, we describe a new de novo sequencing softwa...

MOTIVATION The analysis of high-resolution proton nuclear magnetic resonance (NMR) spectrometry can assist human experts to implicate metabolites expressed by diseased biofluids. Here, we explore an intermediate representation, between spectral trace and classifier, able to furnish a communicative interface between expert and machine. This representation permits equivalent, or better, classific...

We show the existence of a unital subalgebra Pn of the symmetric group algebra linearly spanned by sums of permutations with a common peak set, which we call the peak algebra. We show that Pn is the image of the descent algebra of type B under the map to the descent algebra of type A which forgets the signs, and also the image of the descent algebra of type D. The algebra Pn contains a two-side...

A number of different approaches have been described to identify proteins from tandem mass spectrometry (MS/MS) data. The most common approaches rely on the available databases to match experimental MS/MS data. These methods suffer from several drawbacks and cannot be used for the identification of proteins from unknown genomes. In this communication, we describe a new de novo sequencing softwa...

Due to physical and chemical phenomena, a simple sample can give rise to a complex mass spectrum with many more peaks than the number of molecular species present in the sample. We link peaks within and between different spectra, and come up with an advanced analysis approach to produce reliable estimates of the molecule masses and abundances. By linking peaks, we can locate multiple-charge pea...

In the editorial accompanying our article reporting higher alveolar macrophage carbon in adults who cycled to work in London, ACKERMANN-LIEBRICH [1] speculated that ‘‘very short, high peaks of exposure contribute more to total load of inhaled pollutants and, thus, we ought to control not only the mean pollutant levels but avoid higher peaks.’’ In our initial analyses, we found no association be...

OBJECTIVE To determine whether recent newspaper coverage of the four most common cancer types relates to their relative burden and national awareness months, and to identify the subject focus during high-coverage periods. DESIGN Content analysis using the Nexis newspaper article database. SETTING UK 2011-2012. OUTCOME MEASURES Annual number and ranking, monthly proportions and subject of ...