Optimization of a fed-batch fermentation process is usually done using the calculus of variations to determine an optimal feed rate profile. The obtained optimal feed rate profile consists of sequences of maximum, minimum and singular feed rates. The optimal feed rate control of a primary metabolite process was studied and a biomass production was used as an example. A simple material balance m...

Previous researches [1,2] on Fused Deposition through Electrochemical Discharge (FDED) process have revealed that the periodic instantaneous current wave form (ICWF) is the characteristic of the process and it is significant to maintain the nature of current waveform in order to have a deposition of consistent metallographic properties. The precise control of process parameters is essential for...

BACKGROUND Despite the research supporting adequate enteral nutrition (EN) in intensive care unit (ICU) patients, underfeeding is still common. This quality improvement (QI) project was done to determine the effect of "volume-based" feeding on adequacy of EN delivery and provision of calories and protein in a surgical/trauma ICU (STICU). MATERIALS AND METHODS Mechanically ventilated STICU pat...

This work at ®rst look discusses the in¯uence of the tool path strategy on the cycle time of high-speed milling operations. Experiments and predictions were focused on pocketing operations with a zigzag tool path, quantifying the signi®cant discrepancy between the programmed feed rate and the actual average feed rate. A mechanistic approach for cycle time evaluation is proposed. The mechanistic...

Axone (Akhuni), a homemade Nagamese fermented soybean product, is known for its umami flavor and taste and eaten as a delicacy in North Eastern India. Incorporation of Axone (1% w/w) in commercial poultry feed significantly improved growth rate (weight gain) both in piglets (p, 0.01) and grower pigs (p, 0.039). However, in grower pigs, growth rate was hampered in first week of experiment (p, 0....

ROWTH rate and efficiency of feed utilization are two of the most economically important characters in the production of meat animals. In these days of world shortage of both plant and animal protein, and with an energy crisis looming on the horizon, the necessity both to reduce maintenance costs by speeding up growth rate and to improve the efficiency of growth by improving the efficiency of c...

The influence of feed size and pulp density on the specific rate of breakage of quartz was investigated. Plots of log fraction of feed remaining within the feed size interval against grinding time allowed the application of the first order grinding model to be examined. Substantial non-linearities were observed for all feed sizes due to environmental and material factors. For feed sizes above 1...

Taking the feed-driven linear motor mechanism as the control object, the SIMODRIVE 611D as the control system, establish mathematical model of the servo system. The relation between feed-axis current and cutting force is presented, the current and feed-rate are separately selected as feedback and output. Around the aim of the feed-axis constant current control, choose the fuzzy control as the c...

In the process of polyethylene extrusion polymer material similar to powder or granule is under compression, melting and transmission operation and on base of special form, extrudate has been produced. Twin-screw extruders are applicable in industries because of their high capacity. The powder mixing with chemical additives and melting with thermal and mechanical energy in three zones (feed, co...