Stopband Correction of the AGS Booster Down Feed Effect Observed at the AGS Booster and Octupole Imperfection

1993 ◽  
Author(s):  
Gardner C. ◽  
Y. Shoji
Keyword(s):  
Feed Effect

scholarly journals Calixresorcin[4]arene-Mediated Transport of Pb(II) Ions Through Polymer Inclusion Membrane

Membranes ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 285
Author(s):  
Joanna Konczyk ◽  
Wojciech Ciesielski
Keyword(s):  
Activation Energy ◽  
Transport Process ◽  
Optimal Conditions ◽  
Inclusion Membrane ◽  
Polymer Inclusion Membrane ◽  
Membrane Effect ◽  
Feed Phase ◽  
Ion Carrier ◽  
Feed Effect ◽  
Nitrate Solutions

A facilitated transport of Pb(II) through polymer inclusion membrane (PIM) containing 1,8,15,22-tetra(1-heptyl)-calixresorcin[4]arene and its tetra- and octasubstituted derivatives containing phosphoryl, thiophosphoryl or ester groups as an ion carrier was investigated. The efficiency of Pb(II) removal from aqueous nitrate solutions was considered as a function of the composition of membrane (effect of polymer, plasticizer, and carrier), feed (effect of initial metal concentration and presence of other metal ions) and stripping phases, and temperature of the process conducting. Two kinetic models were applied for the transport description. The highest Pb(II) ions removal efficiency was obtained for the membrane with tetrathiophosphorylated heptyl-calixresorcin[4]arene as an ion carrier. The activation energy value, found from Eyring plot to be equal 38.7 ± 1.3 kJ/mol, suggests that the transport process is controllable both by diffusion and chemical reaction. The competitive transport of Pb(II) over Zn(II), Cd(II), and Cr(III) ions across PIMs under the optimal conditions was also performed. It was found that the Cr(III) ions’ presence in the feed phase disturb effective re-extraction of Pb(II) ions from membrane to stripping phase. Better stability of PIM-type than SLM-type membrane was found.

Ethanolic extract of mango seed in broiler feed: Effect on productive performance, segments of the digestive tract and blood parameters

2021 ◽  
pp. 114999
Author(s):  
Nadja Naiara Pereira Farias ◽  
Ednardo Rodrigues Freitas ◽  
Rafael Carlos Nepomuceno ◽  
Herbenson Marques Gomes ◽  
Davyd Herik Souza ◽  
...  
Keyword(s):  
Digestive Tract ◽  
Ethanolic Extract ◽  
Blood Parameters ◽  
Productive Performance ◽  
Mango Seed ◽  
Feed Effect ◽  
Broiler Feed

A New Distance Relaying Method with System Load Condition Considered in a Transmission Line

2005 ◽  
Vol 277-279 ◽  
pp. 686-691
Author(s):  
Hyun Kyung Moon ◽  
Seung Ho Hyun ◽  
Sung J. Lee
Keyword(s):  
Transmission Line ◽  
Fault Location ◽  
Load Condition ◽  
Fault Current ◽  
Loop Analysis ◽  
Fault Resistance ◽  
Before And After ◽  
Location Algorithm ◽  
Distance Relaying ◽  
Feed Effect

This paper presents a novel fault location algorithm for a distance relay of a transmission line. Under the assumption that the source voltages and impedances of both ends are not changed before and after a fault, the fault current and the voltage of the terminal end are estimated including the loading condition. Then, the fault location expression, independent of the fault resistance, is derived using these voltages and currents through a loop analysis, in the manner that the in-feed effect of the terminal end is eliminated. The suggested algorithm is applied to a typical transmission line to show its effectiveness.

Effect of pre-feeding and sodium fluoroacetate (1080) concentration on bait acceptance by house mice

2009 ◽  
Vol 36 (7) ◽  
pp. 627 ◽  
Author(s):  
P. Fisher ◽  
A. Airey ◽  
S. Brown
Keyword(s):  
New Zealand ◽  
Rattus Rattus ◽  
Daily Intake ◽  
Wild Mouse ◽  
Pest Species ◽  
Wild Mice ◽  
Daily Food ◽  
Variable Success ◽  
Feed Effect ◽  
Toxic Food

Context. In New Zealand, the aerial application of toxic baits containing sodium fluoroacetate (1080) can consistently achieve significant reductions in populations of multiple vertebrate pest species including brushtail possums (Trichosurus vulpecula), ship rats (Rattus rattus) and stoats (Mustela erminea). Reductions in house mouse (Mus musculus) populations by 1080 baiting appear less consistent, possibly due to low acceptance of 1080 bait by mice in field conditions. Aims. We tested the effect of pre-feeding and 1080 concentration on the acceptance of pellet food by mice. Methods. Wild-caught mice were individually housed and presented with a series of two-choice laboratory feeding tests, using estimates of the daily amount eaten to indicate relative acceptance of different types of pellet food. Key results. Pre-feeding mice on non-toxic food did not increase their subsequent acceptance of the same food containing 0.15% 1080. Mice showed low acceptance of food containing 0.08 and 0.15% 1080 (by weight), with similar mortality (25%). Acceptance of food containing 1.5% 1080 was also very low in comparison with non-toxic food, although mortality in mice was higher (~66%). In comparison with other concentrations, mice ate comparatively more of food containing 0.001% 1080 with no mortality, although the non-toxic food was still significantly favoured. Presentation of a choice between non-toxic food and food containing 0.08, 0.15 or 1.5% 1080 to mice was followed by a significant decrease in average total daily food intake over the following 2 days. In surviving mice this ‘drop feed’ effect was followed by an increase in average daily intake of non-toxic food over the next 3 days until normal daily intake levels were again reached. Conclusions. We suggest that wild mice can rapidly identify food containing 1080 and subsequently will avoid it. Implications. This feeding response partly explains the variable success of 1080 baiting operations against wild mouse populations (M. musculus) in New Zealand.

Heat Destruction of Salmonella in Poultry Feed: Effect of Time, Temperature, and Moisture

1996 ◽  
Vol 40 (1) ◽  
pp. 72 ◽  
Author(s):  
Sakchai Himathongkham ◽  
Maria das Gracas Pereira ◽  
Hans Riemann
Keyword(s):  
Poultry Feed ◽  
Feed Effect
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