Products and Kinetics of Cloransulam-methyl Aerobic Soil Metabolism

1996 ◽  
Vol 44 (1) ◽  
pp. 324-332 ◽  
Author(s):  
Jeffrey D. Wolt ◽  
Joelene K. Smith ◽  
Jerry K. Sims ◽  
Dennis O. Duebelbeis
1999 ◽  
Vol 55 (4) ◽  
pp. 434-445 ◽  
Author(s):  
Yutai Li ◽  
W T Zimmerman ◽  
M K Gorman ◽  
R W Reiser ◽  
A J Fogiel ◽  
...  

1998 ◽  
Vol 54 (3) ◽  
pp. 237-243 ◽  
Author(s):  
Jeong-Han Kim ◽  
Kyong-Goo Kang ◽  
Chang-Kyu Park ◽  
Kyun Kim ◽  
Boo-Hyon Kang ◽  
...  
Keyword(s):  

2013 ◽  
Vol 40 (1) ◽  
pp. 79 ◽  
Author(s):  
Benoit Clerget ◽  
Crisanta Bueno

Rice has generally been reported to yield less in aerobic soil conditions than in flooded soil conditions, in association with delayed anthesis and a reduction in height. A greenhouse experiment was conducted and repeated twice with four rice varieties grown in either flooded or nearly-saturated aerobic soil, in either large or small pots. The rate of leaf appearance was recorded weekly until heading time, when plants were harvested for shoot and root biomass. The kinetics of leaf appearance was generally trilinear with longer phyllochrons in the May sowing. Pot size had only a small effect whereas aerobic soil conditions slowed down the rate of leaf initiation, which consequently delayed panicle initiation and heading date and thus increased the duration of the tillering phase and finally the number of tillers. Surprisingly, the four varieties showed a significant response to sowing date, especially IR72, which headed 21 days later and after the expansion of two more leaves in the May sowing. The aerobic soil conditions and sowing date have thus changed the rate of development of rice plants and this trait has appeared to be the initial link of a chain of consequences in a series of traits known to be affected by these factors.


2003 ◽  
Vol 51 (3) ◽  
pp. 710-714 ◽  
Author(s):  
Jin Kim ◽  
Kwang-Hyeon Liu ◽  
Seung-Hun Kang ◽  
Suk-Jin Koo ◽  
Jeong-Han Kim
Keyword(s):  

2014 ◽  
Vol 18 (4) ◽  
pp. 258-268 ◽  
Author(s):  
Ju-Hye Kim ◽  
Jong-Hwan Kim ◽  
Dae-Wook Kim ◽  
Bong-Jae Lee ◽  
Chan Sub Kim ◽  
...  
Keyword(s):  

1987 ◽  
Vol 35 (3) ◽  
pp. 384-387 ◽  
Author(s):  
Philip W. Lee ◽  
Walter R. Powell ◽  
Stephen M. Stearns ◽  
Oliver J. McConnell
Keyword(s):  

Author(s):  
J. F. DeNatale ◽  
D. G. Howitt

The electron irradiation of silicate glasses containing metal cations produces various types of phase separation and decomposition which includes oxygen bubble formation at intermediate temperatures figure I. The kinetics of bubble formation are too rapid to be accounted for by oxygen diffusion but the behavior is consistent with a cation diffusion mechanism if the amount of oxygen in the bubble is not significantly different from that in the same volume of silicate glass. The formation of oxygen bubbles is often accompanied by precipitation of crystalline phases and/or amorphous phase decomposition in the regions between the bubbles and the detection of differences in oxygen concentration between the bubble and matrix by electron energy loss spectroscopy cannot be discerned (figure 2) even when the bubble occupies the majority of the foil depth.The oxygen bubbles are stable, even in the thin foils, months after irradiation and if van der Waals behavior of the interior gas is assumed an oxygen pressure of about 4000 atmospheres must be sustained for a 100 bubble if the surface tension with the glass matrix is to balance against it at intermediate temperatures.


Author(s):  
R. J. Lauf

Fuel particles for the High-Temperature Gas-Cooled Reactor (HTGR) contain a layer of pyrolytic silicon carbide to act as a miniature pressure vessel and primary fission product barrier. Optimization of the SiC with respect to fuel performance involves four areas of study: (a) characterization of as-deposited SiC coatings; (b) thermodynamics and kinetics of chemical reactions between SiC and fission products; (c) irradiation behavior of SiC in the absence of fission products; and (d) combined effects of irradiation and fission products. This paper reports the behavior of SiC deposited on inert microspheres and irradiated to fast neutron fluences typical of HTGR fuel at end-of-life.


Author(s):  
Shiro Fujishiro ◽  
Harold L. Gegel

Ordered-alpha titanium alloys having a DO19 type structure have good potential for high temperature (600°C) applications, due to the thermal stability of the ordered phase and the inherent resistance to recrystallization of these alloys. Five different Ti-Al-Ga alloys consisting of equal atomic percents of aluminum and gallium solute additions up to the stoichiometric composition, Ti3(Al, Ga), were used to study the growth kinetics of the ordered phase and the nature of its interface.The alloys were homogenized in the beta region in a vacuum of about 5×10-7 torr, furnace cooled; reheated in air to 50°C below the alpha transus for hot working. The alloys were subsequently acid cleaned, annealed in vacuo, and cold rolled to about. 050 inch prior to additional homogenization


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