Temperature is an important parameter controlling protein crystal growth. A new temperature-screening system (Thermo-screen) is described consisting of a gradient thermocycler fitted with a special crystallization-plate adapter onto which a 192-well sitting-drop crystallization plate can be mounted (temperature range 277-372 K; maximum temperature gradient 20 K; interval precision 0.3 K). The s...

Heat exchanger is an essential device used in complex engineering systems related to heat transfer processes in many industrial applications. Plate Heat Exchanger (PHE) is an important part of a condensing or evaporating system. Among many of factors which should concentrate on, the heat transfer and pressure drop is most important part during sizing and rating the performance of PHE. Due to th...

OBJECTIVE To assess the factors, including helmet use, that contribute to head linear and angular acceleration in bicycle crash simulation tests. METHOD A series of laboratory tests was undertaken using an oblique impact rig. The impact rig included a drop assembly with a Hybrid III head and neck. The head struck a horizontally moving striker plate. Head linear and angular acceleration and st...

Teflon spaghetti tubing was placed over the metal needles of the dispensing head of the Accu-Drop multidropper, thus preventing the delivery of multiple drops. A metal plate was drilled so that 25 cartridges could be positioned to inoculate simultaneously 25 compartments in a divided petri dish.

A new type of immersion cooled module, the BTPFL-C2, was developed for thermal management of future high flux avionics while conforming to the geometrical constraints of existing military modules and avionic enclosures. The BTPFL-C2 houses two circuit boards separated by a flow distribution plate and employs two sleeveless quick connection coolant couplers. The flow distribution plate supplies ...

The effect of imperfectly conducting bounding plates on the heat transport in turbulent thermal convection in the Rayleigh-Bénard problem is considered in the context of analytical upper bounds. Beginning with the evolution equations in the fluid in the Boussinesq approximation, coupled through temperature and flux continuity to identical upper and lower conducting plates with diffusive heat fl...

Different screening methods namely, hemolytic assay (HA), modified drop collapse (MDC), tilted glass slide (TGST), oil spread method (OSM), blue agar plate (BAP), hydrocarbon overlaid agar (HOA) plate, emulsification index (EI), emulsification assay (EA) were assessed for their efficiency to detect biosurfactant producing marine bacteria. Forty-five strains of bacteria, comprising 18 Acinetobac...

Brass Ferrules have been used as packing in a laboratory- scale glass distillation column approaching pilot plant size because of their availability in all sizes and low cost. The available size range is such that these ferrules could also be used in industry and the results of this study could be scaled up. The performance of the new packing has been compared with the performance of glass ...

-This paper focus on investigating the impact property of laminated composites.The test are performed based onASTM standardsD3029 and D7137.The impact test were carried out using an instrumented drop weight test. The behavior of E-glass/epoxy and carbon fiber laminated composite plates has been experimentally studied under impact of steel projectile at low velocities. The results were obtained ...