All aspects of the file transfer process can be tracked. Integration with Applications, Middleware, Email and Cloud. Make complex operations easily and efficiently through an intuitive management portal. Support for Multiple OS and Browsers. Automated Restart and Retransmission. In the unlikely event the file transfer fails before it completes, MassTransit can automatically restart the transfer with no user intervention. Intuitive, Simple Management Portal. Transferring files with Acronis MassTransit is as easy as sending an email.
You can also brand the management portal to reflect your brand identity. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. We never sell your personal information. Cookie settings Accept. Close Privacy Overview This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website.
We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may have an effect on your browsing experience. Necessary Necessary. Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website.
These cookies do not store any personal information. Mass-transfer kinetics Binding of analyte to the ligand on the sensor chip is in principle a two step event. Mass transfer rate constant Under mass transfer limitation the diffusion of the analyte A from the bulk solution to the surface and the binding to the ligand L on the sensor chip can be described as: Reaction equation Reaction equation Differential equation - k t Differential equation.
Parameter Meaning A bulk analyte concentration in buffer in M A surface analyte concentration as surface of sensorchip in M L concentration of free ligand in RU LA concentration of ligand-analyte complex in RU k a association rate constant in M -1 s -1 k d dissociation rate constant in s -1 k t coefficient for mass transfer in RU m -1 s Mass transfer coefficient When the mass of the analyte is know the mass transfer coefficient k m can be calculated using the next formula.
Differential equation - k m Differential equation. Parameter Meaning L concentration of free ligand in RU A concentration of free analyte in M LA concentration of ligand-analyte complex in RU k a association rate constant in M -1 s -1 k d dissociation rate constant in s -1 k m mass transfer constant in m s -1 Mr molecular mass of analyte in Dalton. Simulation parameters sensorgram Concentration nM k a M -1 s -1 k d s -1 k m m -1 s -1 Rmax RU Mr Da local global global global global global - 1e 5 5e -3 2e 7 For a given impeller and specific stirred tank reactor geometry, the universal impeller performance curve can be obtained.
This characterizes the impeller power applied to fluid phase. Typical power performance curves Reynolds number Re vs. The dimensionless Reynolds number indicates whether the reactor fluid is flowing in laminar or turbulent regime.
It represents the ratio of the inertial forces forces of the impeller on the fluid , compared to the viscous forces intrinsic to the process fluid. The exact transition point to the turbulent regime depends on reactor geometry, and the presence of "turbulence" promoting elements in the reactor, such as baffles. Laboratory reactors provide rapid means of testing each fluid and reactor-impeller setup. Using the reaction of S 2 O 3 -2 and I 2 in the presence of starch, he demonstrates the impact of mixing on the reagent distribution by showing where fast chemical reactions with competing byproduct reactions occur.
In the video , the black plume is the byproduct of the reaction of iodine with starch. However, as soon as the starch-iodine complex reacts with thiosulfate the solution, it becomes clear again. Mixing, feed rate, and feed location all impact the primary reaction rate.
The closer the feed tube is to the impeller, or the higher the stirring speed, the less byproduct is formed. On the contrary, as the stirring speed increases the amount of byproduct is reduced quickly.
The primary and most fundamental rate process that must be characterized when conducting any gas-liquid reaction is the mass transfer of gas into the liquid reaction phase. Scale-up strategy is to match mass transfer coefficients, kla, from small- to large-scale volumes, rather than trying to match geometry, agitation rates, or other mixing characteristics. The paper, Fundamentals of Mass Transfer and Kinetics for the Hydrogenation of Nitrobenzene to Aniline , outlines the steps to calculate the mass transfer coefficient, and prods warnings about misleading information in agitation studies in catalytic hydrogenation.
In the webinar, The Importance of Mixing: Comparing Lab and Large Scale , Ray Machado discusses the effect mixing on kinetics, heat transfer, thermodynamics, mass transfer between phases, and optimization of mixing solids or gases. Mixing can affect yield, selectivity, and byproduct formation.
0コメント