Simulated Performance of the Micro-Pocket Fission Detector in the Advanced Test Reactor Critical Facility

Slurry bioremediation testing was conducted on waste sludges from petrochemical production. The study concludes that the apparent mechanism for remediation of the waste involves an initial dissolution of the waste constituents into the aqueous phase followed by actual biodegradation. The test reactor most successful in the solubilization and dispersal of waste constituents and possibly most effective in reducing waste sludge mass during treatment is the reactor with the lowest waste sludge-to-microorganism ratio.

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A Technique to Determine Unsteady-State Inhibition Kinetics in the Activated Sludge Process

Water Science & Technology ◽

10.2166/wst.1989.0261 ◽

1989 ◽

Vol 21 (6-7) ◽

pp. 593-602 ◽

Cited By ~ 3

Author(s):

Andrew T. Watkin ◽

W. Wesley Eckenfelder

Keyword(s):

Activated Sludge ◽

Kinetic Parameters ◽

Curve Fitting ◽

Glucose Utilization ◽

Batch Reactor ◽

Synthetic Data ◽

Utilization Rate ◽

Fitting Algorithm ◽

Test Reactor ◽

Two Parameter

A technique for rapidly determining Monod and inhibition kinetic parameters in activated sludge is evaluated. The method studied is known as the fed-batch reactor technique and requires approximately three hours to complete. The technique allows for a gradual build-up of substrate in the test reactor by introducing the substrate at a feed rate greater than the maximum substrate utilization rate. Both inhibitory and non-inhibitory substrate responses are modeled using a nonlinear numerical curve-fitting technique. The responses of both glucose and 2,4-dichlorophenol (DCP) are studied using activated sludges with various acclimation histories. Statistically different inhibition constants, KI, for DCP inhibition of glucose utilization were found for the various sludges studied. The curve-fitting algorithm was verified in its ability to accurately retrieve two kinetic parameters from synthetic data generated by superimposing normally distributed random error onto the two parameter numerical solution generated by the algorithm.

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X-ray Diffraction Characterization of U-10wt% EBR-II Driver Fuel and Fuel Used for AFC-4B and AFC-4D Testing in the Advanced Test Reactor

10.2172/1515017 ◽

2018 ◽

Author(s):

Kevin R. Tolman ◽

Douglas L. Porter

Keyword(s):

X Ray Diffraction ◽

X Ray ◽

Test Reactor

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Diamond Wire Cutting of the Tokamak Fusion Test Reactor Vacuum Vessel. Innovative Technology Summary Report

10.2172/769191 ◽

2000 ◽

Author(s):

Keyword(s):

Innovative Technology ◽

Vacuum Vessel ◽

Summary Report ◽

Diamond Wire ◽

Wire Cutting ◽

Test Reactor

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Cuboidal quad-port UWB-MIMO antenna with WLAN rejection using spiral EBG structures

International Journal of Microwave and Wireless Technologies ◽

10.1017/s1759078721000775 ◽

2021 ◽

pp. 1-8

Author(s):

Sumon Modak ◽

Taimoor Khan

Keyword(s):

Close Agreement ◽

Ground Plane ◽

Antenna System ◽

Ultra Wideband ◽

Electromagnetic Bandgap ◽

Mimo Antenna ◽

Simulated Performance ◽

Notched Band ◽

Multiple Input ◽

Band Characteristic

Abstract This study presents a novel configuration of a cuboidal quad-port ultra-wideband multiple-input and multiple-output antenna with WLAN rejection characteristics. The designed antenna consists of four F-shaped elements backed by a partial ground plane. A 50 Ω microstrip line is used to feed the proposed structure. The geometry of the suggested antenna exhibits an overall size of 23 × 23 × 19 mm3, and the antenna produces an operational bandwidth of 7.6 GHz (3.1–10.7 GHz). The notched band characteristic at 5.4 GHz is accomplished by loading a pair of spiral electromagnetic bandgap structures over the ground plane. Besides this, other diversity features such as envelope correlation coefficient, and diversity gain are also evaluated. Furthermore, the proposed antenna system provides an isolation of −15 dB without using any decoupling structure. Therefore, to validate the reported design, a prototype is fabricated and characterized. The overall simulated performance is observed in very close agreement with it's measured counterpart.

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