The results of an extensive series of numerical simulation tests to identify the mechanical characteristics of the recently proposed roll-n-cage (RNC) isolation bearing are presented. Several different configurations of a 1/10 reduced scale prototype are included in a deep parametric study. Cyclic horizontal displacement tests considering varying test parameters of shear displacement amplitude,...

BACTEC 13A medium (Johnston Laboratories, Towson, Md.) was compared with Isolator (Du Pont Co., Wilmington, Del.) concentrate for sensitivity, speed, and technical ease of isolation of mycobacteria from paired patient blood samples. Of 72 positive cultures, 63 were positive by both systems. Five positive cultures were detected by BACTEC 13A medium alone, and four were detected by Isolator alone...

A Faraday isolator is an electromagnetic non-reciprocal device, a key element in photonics. It is required to shield electromagnetic sources against the effect of back-reflected light, as well as to limit the detrimental effect of back-propagating spontaneous emissions. A common isolator variant, the circulator, is widely used to obtain a complete separation between forward- and backward-propag...

OBJECTIVE We aimed to analyse the prevalence of having multiple lifestyle risk behaviours (LRB) and the potential relationship between excess weight (including overweight and obesity) and cumulative multiple LRB among adolescents in Barcelona, Spain. METHODS A cross-sectional study was performed among a representative sample of 3,114 secondary school students in Barcelona. Height and weight w...

This study examines the feasibility of applying adaptive fuzzy sliding mode control (AFSMC) strategies to reduce the dynamic responses of bridges constructed using a lead rubber bearing (LRB) isolation hybrid protective system. Recently developed control devices for civil engineering structures, including hybrid systems and semi-active systems, have been found to have inherent nonlinear propert...

Treatment under conditions of gnotobiotic isolation can augment the stress of adaptation to a diagnosis of leukaemia. Identification of the psychological problems experienced in isolator treatment can contribute to the effective maintenance of therapy. Individual patterns of adjustment to treatment relate to the psychological defence mechanisms employed to contend with the dependent position en...

A number of necropsies were performed with the body completely isolated in a flexible film isolator in order to determine the practicability of such a method in protecting the post mortem room staff from the risk of infection from the corpse. It is considered that necropsies can be carried out using such an isolator without hindrance to either manual skill or vision and that a high degree of sa...

This paper describes a new, compact, waveguide thermal isolator. The isolator is based on a recently developed microwave bandgap joint, a periodic structure which suppresses microwave fields propagating between two parallel conducting surfaces. When such a structure is placed between a pair of waveguide flanges, the flanges can be separated by a few percent of a wavelength before the leakage an...

Within the spectrum of childhood diseases that present with recurrent and persistent infections, the 'combined immunity deficiency syndrome' (Soothill, 1967) or 'Swiss' type of a-y-globulinaemia (Hitzig, Barandun, and Cottier, 1968) has recently been well defined. This familial disease is considered to result from a recessive genetic inheritance (Hitzig and Willi, 1961). Treatment has been inva...

An important cause for interior noise in vehicles is structure-borne sound from the engine. The vibrations of the source (engine) are transmitted to the receiver structure (the vehicle) causing interior noise in the vehicle. For this reason the engine is supported by rubber isolators for passive isolation in especially the high-frequency region. To make a good judgment of the characteristics of...