At present, the prediction of shipboard cabin noise is mainly obtained by simulation calculation using FEM, BEM or SEA. These methods are not convenient for rapid engineering prediction. By making a test platform prediction, we make an experimental study simplified approach based on Source-Path-Receiver system approach. The shows that this feasible and valid when applied to predict air borne le...

The sound emission of thin-walled radiating components is a common objective of structural optimisation. Acoustic measures are not implemented in common FE-codes. Thus, different velocitiy based measures will be compared: the kinetic energy, the equivalent radiated power (ERP) and the lumped parameter model (LPM). The most common approach the ERP is based on the sound intensity in normal direct...

Age is a critical determinant of the ability of most arthropod vectors to transmit a range of human pathogens. This is due to the fact that most pathogens require a period of extrinsic incubation in the arthropod host before pathogen transmission can occur. This developmental period for the pathogen often comprises a significant proportion of the expected lifespan of the vector. As such, only a...

A possible role in RNA replication for interactions between conserved complementary (cyclization) sequences in the 5'- and 3'-terminal regions of Flavivirus RNA was previously suggested but never tested in vivo. Using the M-fold program for RNA secondary-structure predictions, we examined for the first time the base-pairing interactions between the covalently linked 5' genomic region (first ~16...

Land use change alters the structure and composition of microbial communities. However, the links between environmental factors and microbial functions are not well understood. Here we interrogated the functional structure of soil microbial communities across different land uses. In a multivariate regression tree analysis of soil physicochemical properties and genes detected by functional micro...

Tick-borne encephalitis is a natural focal transmissible zooanthroponosis. The causative agent of the disease is a tick-borne encephalitis virus (TBEV) belonging to the genus Flavivirus of the family Flaviviridae and is widespread in Eurasia. Current TBEV classification based on molecular genetic data comprises three phylogenetically separate subtypes: Far Eastern, European and Siberian (TBEV-S...

Vector-borne generalist pathogens colonize several reservoir species and are usually dependent on polyphagous arthropods for dispersal; however, their spatial genetic structure is generally poorly understood. Using fast-evolving genetic markers (20 simple sequence repeat loci, resulting in a total of 119 alleles), we studied the genetic structure of the vector-borne plant-pathogenic bacterium X...