Mechanical switching of ferro-electric rubber (2008)
At the A to C transition, smectic elastomers have recently been observed to undergo $\sim$35% spontaneous shear strains. We first explicitly describe how strains of up to twice this value could be...
In 1975 Doi and Edwards predicted that entangled polymer melts and solutions can have a constitutive instability, signified by a decreasing stress for shear rates greater than the inverse of the...
Adams, J.M., Fielding, S.M., Olmsted, P.D.
We study shear banding flows in models of wormlike micelles or polymer solutions, and explore the effects of different boundary conditions for the viscoelastic stress. These are needed because the...
Smectic-$A$ elastomers with weak director anchoring (2008)
Adams, J. M., Warner, M., Stenull, O., Lubensky, T. C.
Experimentally it is possible to manipulate the director in a (chiral) smectic-$A$ elastomer using an electric field. This suggests that the director is not necessarily locked to the layer normal, as...
Adams, J. M., Fielding, S. M., Olmsted, P. D.
We study shear banding flows in models of wormlike micelles or polymer solutions, and explore the effects of different boundary conditions for the viscoelastic stress. These are needed because the...
Doi, Y., Adams, J.M., Yamane, K., Paterson, D.L.
Five highly amikacin-resistant Acinetobacter baumannii isolates were collected at a medical center in Pennsylvania. The aminoglycoside resistance was due to the production of the 16S rRNA methylase...
Tritium transport experiments on the JET tokamak (2004)
Zastrow, K. D., Adams, J. M., Baranov, Y., Belo, P., Bertalot, L., Brzozowski, J. H., ...
An overview is given of the experimental method, the analysis technique and the results for trace tritium experiments conducted on the JET tokamak in 2003. Observations associated with events such as...
Overview of JET results (2003)
Pamela, J., Solano, E. R., Adams, J. M., Agarici, G., Agarici, M., Akhter, H., ...
Scientific and technical activities on JET focus on the issues likely to affect the ITER design and operation. Our understanding of the ITER reference mode of operation, the ELMy H-mode, has...
Overview of JET results in support of the ITER physics basis (2001)
Adams, J. M., Ageladarakis, P., Alper, B., Altmann, H., Arshad, S., Bainbridge, N., ...
The JET experimental campaign has focused on studies in support of the ITER physics basis. An overview of the results obtained is given for the reference ELMy H mode and advanced scenarios, which in...
Jones, T. T. C., Adams, J. M., Ageladarakis, P., AliArshad, S., Alper, B., Altmann, H., ...
Planned experiments in the Joint European Torus [Plasma Physics and Controlled Fusion Research, Proceedings, 13th International Conference, Washington, D.C., 1990 (International Atomic Energy Agency,...
Latest JET results in deuterium and deuterium-tritium plasmas (1997)
Adams, J. M., Ageladarakis, P., Arshad, S. A., Alper, B., Altmann, H., Andrew, P., ...
All major JET systems have been fully commissioned for D-T and the DTE1 series of experiments has started with the D-T fuel mixture and operating conditions foreseen for ITER. In the area of ITER...
JET results with the new pumped divertor and implications for ITER (1995)
Adams, J. M., Ageladarakis, P., Alper, B., Altmann, H., Andrew, P., AliArshad, S., ...
This paper presents an overview of results of the 1994/95 experimental campaign on JET with the new pumped divertor and draws implications for ITER in the areas of detached and radiative divertor...
First Results with the Modified Jet - the Jet Team (1994)
Adams, J. M., Agarici, Y., Ageladarakis, P., Alper, B., Altmann, H., Andrew, P., ...
JET was extensively modified in the 1992/93 shutdown. The new pumped divertor and many new systems were brought into operation early in 1994. Operations have progressed to 4MA plasma current and,...
Studies of D-D Fusion Reactivity in High-Temperature Jet Plasmas (1991)
Adams, J. M., Balet, B., Boyd, D. A., Campbell, D. J., Challis, C. D., Christiansen, J. P., ...
The D-D fusion reactivity from JET plasmas has been optimized by using combined neutral beam injection and radiofrequency heating. Reaction rates of up to 2.9 x 10(16) reactions per second...
On proof rules for monitors (1982)
An inadequacy is pointed out in the original proof rules for monitors and in later extended rules. This inadequacy gives rise to an anomaly in proving the invariant for a monitor simulating a...