Modification of T-DNA of nopaline Ti plasmid by intermediary vector and utilization of agrocin 84 sensitivity as simple criterion of conjugation transfer of modified Ti plasmid

1986 ◽  
Vol 31 (2) ◽  
pp. 86-93 ◽  
Author(s):  
J. Vlasák ◽  
M. Hrouda ◽  
R. Bísková ◽  
M. Ondřej
Keyword(s):  
Ti Plasmid ◽  
Simple Criterion ◽  
Conjugation Transfer

scholarly journals Correction: characterization of the virB operon from Agrobacterium tumefaciens Ti plasmid.

1990 ◽  
Vol 265 (8) ◽  
pp. 4768
Author(s):  
J E Ward ◽  
D E Akiyoshi ◽  
D Regier ◽  
A Datta ◽  
M P Gordon ◽  
...  
Keyword(s):  
Agrobacterium Tumefaciens ◽  
Ti Plasmid ◽  
Virb Operon

Paper 7: Control of Variable-Discharge Pumps and Dangers of Pipeline Resonance

1966 ◽  
Vol 181 (1) ◽  
pp. 144-174
Author(s):  
B. J. Cooper ◽  
D. Hartland ◽  
R. Lawson ◽  
A. M. Stone ◽  
R. D. Tyler
Keyword(s):  
Power Input ◽  
Small Region ◽  
Significant Loss ◽  
Pump Efficiency ◽  
Positive Slope ◽  
Simple Criterion ◽  
Wide Range ◽  
Resonant Instability ◽  
Organ Pipe ◽  
Computer Studies

The discharge and power input of Deriaz mixed-flow pumps and pump turbines can be controlled over a wide range without significant loss in efficiency by movement of the blades. The attainment of the highest pump efficiency involves a small region of positive slope in the head discharge graph. This paper examines the limitations of designing pumps which do not exhibit positive slope and the problems of governing if a positive-slope region is accepted. It is shown that operation in the positive-slope region can introduce a serious organ-pipe resonant instability in the pipeline. A simple criterion to determine whether or not such oscillations will occur is given. This stability criterion involves the dynamic characteristics of both the pump and the pipeline. Finally, computer studies of a particular Deriaz pump installation are presented. These underline the severity of the situation should resonance develop and show how it can be avoided by the use of an air bottle of appropriate design.

THE ISOPIESTIC METHOD APPLIED TO SORPTION ISOTHERMS

1949 ◽  
Vol 27b (2) ◽  
pp. 87-100 ◽  
Author(s):  
S. Barnartt ◽  
J. B. Ferguson
Keyword(s):  
Carbon Tetrachloride ◽  
Linear Relation ◽  
Sorption Isotherms ◽  
Sorption Process ◽  
The Other ◽  
Isopiestic Method ◽  
Simple Criterion ◽  
Water Vapors ◽  
Linear Sections ◽  
Wide Pressure

The isopiestic method has been applied to the sorption of carbon tetrachloride and water vapors by activated coconut shell charcoals. The isopiestic charges were found to be linearly related over wide pressure ranges. Isotherms formed by plotting the isopiestic charges of two charcoals one against the other consisted of three linear sections for both carbon tetrachloride and water. If the pressure isotherm of one charcoal be known, those of other charcoals may be computed from it by weighing relatively few isopiestic charges. Errors inherent in the measurement of equilibrium pressures, as well as those caused by the drift of the pressure isotherms towards higher sorption capacities at a given pressure, are eliminated in the isopiestic method of comparing charcoals. The linear relation between the isopiestic charges affords a simple criterion of rejection for equations proposed to fit the pressure isotherms. It also throws into relief the structural regularities in activated charcoals. The existence of discontinuities m the sorption process, reported by previous experimenters, is supported by the isopiestic data.

ON MAGNETIC SELF-COLLIMATION OF RELATIVISTIC JETS

2010 ◽  
Vol 19 (06) ◽  
pp. 689-694
Author(s):  
N. GLOBUS ◽  
V. CAYATTE ◽  
C. SAUTY
Keyword(s):  
Black Hole ◽  
Total Energy ◽  
Ideal Fluid ◽  
Polar Axis ◽  
Kerr Metric ◽  
Relativistic Jets ◽  
Simple Criterion ◽  
General Relativistic ◽  
Time Splitting ◽  
Relativistic Magnetohydrodynamics

We present a semi-analytical model using the equations of general relativistic magnetohydrodynamics (GRMHD) for jets emitted by a rotating black hole. We assume steady axisymmetric outflows of a relativistic ideal fluid in Kerr metrics. We express the conservation equations in the frame of the FIDucial Observer (FIDO or ZAMO) using a 3+1 space–time splitting. Calculating the total energy variation between a non-polar field line and the polar axis, we extend to the Kerr metric the simple criterion for the magnetic collimation of jets obtained for a nonrotating black hole by Meliani et al.10 We show that the black role rotation induced a more efficient magnetic collimation of the jet.

The boundaries and copy numbers of Ti plasmid T-DNA vary in crown gall tumors

1980 ◽  
Vol 177 (4) ◽  
pp. 637-643 ◽  
Author(s):  
D. J. Merlo ◽  
R. C. Nutter ◽  
A. L. Montoya ◽  
D. J. Garfinkel ◽  
M. H. Drummond ◽  
...  
Keyword(s):  
Crown Gall ◽  
Ti Plasmid ◽  
Copy Numbers ◽  
Crown Gall Tumors

Internal organization, boundaries and integration of Ti-plasmid DNA in nopaline crown gall tumours

1980 ◽  
Vol 144 (3) ◽  
pp. 353-376 ◽  
Author(s):  
M. Lemmers ◽  
M. De Beuckeleer ◽  
M. Holsters ◽  
P. Zambryski ◽  
A. Depicker ◽  
...  
Keyword(s):  
Plasmid Dna ◽  
Crown Gall ◽  
Ti Plasmid ◽  
Internal Organization ◽  
Organization Boundaries
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