early in this study, an α-amylase from bacillus megaterium who (bmw) was isolated from hot springs of ramsar (north of iran), and its gene was cloned in e.coli. based on its conserved sequence regions and substrate specificity, it was classified as intermediary group enzymes with the specificity of oligo-1,6-glucosidase and neopullulanase subfamilies. in the sixth conserved region (83-qvngiwmmp...

Acquisition of sporadic community-acquired legionnaires' disease has been linked to hot springs and whirlpool baths. Outbreaks of hot spring-associated legionnaires' disease were reported in Japan in the last few years. Although the mode of transmission is unclear, the presence of Legionella in hot springs may discourage hot springs resort visits by the general public. An environmental survey w...

The correct attribution of reductions in coral calcification rates to environmental parameters is key to predicting how coral reefs could respond under future climate change scenarios (1). Crook et al. (2) report a 35% reduction in the calcification rates of the coral Porites astreoides growing near submarine freshwater springs relative to specimens growing in the surrounding lagoon. Submarine ...

This paper investigates the synthesis of a spatial stiffness matrix using simple line springs. A new algorithm is developed, which enables the selection of constituent springs based on their positions and directions. The constraining space of the line springs is then investigated. It is shown that an isotropic stiffness matrix, in general, can be split into the sum of two rank-3 stiffness matri...

A new calculation method for disc springs with contact flats and reduced thickness is presented in this paper. The analysis aims at putting in evidence the contradiction in standard norms where the standard calculation method for this kind of Belleville springs is used. On the basis of this analysis it is found that standard methods do not work for reduced disc springs because they lead to dang...

[1] One hundred seven thermal gradients were measured in shallow surface sediments using the submersible Alvin within a 0.5 km area on and around the 65-m-high, mostly sediment-covered Baby Bare outcrop located on the eastern flank of the Juan de Fuca Ridge. Heat flow values range from 0.35 W m , which is close to the average value (0.27 W m ) for the sediment-buried 3.5-Myr-old crust surroundi...

springs are the  mechanical parts which have many application in industries. static and dynamic forces cause relaxation in these parts so that they lose some of their free length and reaction force. springs constant are very important in airplane and vailway industry since constant and variable forces are applied to them in period time, therefore it is necessary to avoid decreasing in spring co...

OBJECTIVE The aim of this paper was to determine the amount of deformation in four commercial brands of nickel-titanium closed springs. METHODS A total of 130 springs were divided into 13 subgroups, according to their features and manufacturers (Morelli, Orthometric, Ormco and GAC) and activated from 100% to 1000% of the effective length of the nickel-titanium portion present at the spring, a...

Based on the results of expeditionary studies (July 2021), geochemical features thermal waters (natural manifestations and borehole waters) discharging near or directly Sea Okhotsk Pacific coasts central part Iturup Island were considered: Reidovskie, Lososevye, Cape Konakov, Goryachie Klyuchi, Dachnye, water-recreational complex «Vannochki». The springs (with exception Lososevye) belong to sub...