نتایج جستجو برای: vertical roller mill

تعداد نتایج: 112997  

Journal: :Applied and environmental microbiology 1977
E Knight

A multisurface glass roller bottle has been constructed for the growth of animal cells in culture. This bottle contains five concentrically placed glass cylinders that provide additional surfaces for the growth of animal cells. The bottle occupies the same space as a standard roller bottle, but it contains nine times the surface area of a standard bottle. L and HeLa cells can be grown in the bo...

Ali Tayaran Mahmood Hosseini

Rolling-based seismic isolation systems, in which rollers of circular or non-circular section are used, are less expensive and easier to manufacture. However, this type of isolation suffers from either lack of restoring or re-centering capability, or weakness against uplift forces. To resolve the first shortcoming the use of elliptical as well as pillow-shape rolling parts has been suggested, a...

Journal: :Archives of physical medicine and rehabilitation 2005
Michael D Freeman Arthur C Croft Clarence N Nicodemus Christopher J Centeno Whitney L Elkins

OBJECTIVES To describe a cohort of significantly injured roller coaster riders and the likely levels of acceleration at which the injuries occurred, and to compare these data with contemporary efforts to define a lower limit of acceleration below which no significant spinal injury is likely to occur. DESIGN A retrospective case series of roller coaster ride-induced significant spinal injuries...

Journal: :Catalysts 2021

Cobalt ferrite (CoFe2O4) nanoparticles were synthesized and investigated as a catalyst in the reaction of nitrous oxide (N2O) decomposition. was by solid–phase interaction at 1100 °C preliminary mechanochemical activation roller-ring vibrating mill 400 °C. The characterized X-ray diffraction (XRD), synchronous thermal analysis (TG DSC) scanning electron microscopy (SEM). A low-temperature nitro...

Journal: :Advances in Mechanical Engineering 2023

Pendulum mill is a widely used grinding equipment in powder processing industry. Less in-depth studies have been carried out especially for efficiency and wear. Through theoretical analysis, the main influencing parameters were screened, among which spindle speed spade degree mainly affect efficiency, but wind velocity causes duct The Fluent-DEM co-simulation method study of complex physical fi...

2009
Jihong Wang Mike Garwood

Around 40% of electricity in the UK is currently generated by coal-fired power stations. Coal-fired power stations nowadays are required to operate more flexibly with more varied coal specifications and regularly use coal with higher volatile contents and biomass materials; this can increase the risks of pressurisation or fires in milling plants. The power stations are also obliged to vary thei...

Journal: :Nihon kikai gakkai ronbunshu 2023

Vertical vibrations in railway vehicles are not only induced by track irregularity but also affected the rotation of wheelsets with small mass imbalance. It is known that excitation force generated transmitted from bogies to car bodies through longitudinal connecting members such as traction devices and yaw dampers. In this research, we first investigated influence dampers on vertical body vibr...

Journal: :International Journal of Mineral Processing 2016

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