New Regime

The Macondo accident caused the offshore industry and regulators in the United States and other eountries to immediately evaluate their safety programs. A review of the ehanges made by DOI, BOEM, and BSEE follows to determine the extent to which they have addressed the four main issues raised by earlier appraisal of the MMS regime its reliance on prescriptive regulation, use of checklist inspection, dependency on industrial standards and practices, and disregard for advances in safety science theory and practice. 

Immediately after the accident, DOI and others sought to determine the factors that contributed to the loss of well control, explosion, fire, and spill at the Macondo site, and imposed temporary suspension of deepwater drilling. Under political and industry pressures to allow a resumption of drilling, DOI also began to consider changes to the MMS regime that would convince the public that future operations would be safely conducted. 

However, this promise may be difficult to keep in practice because both BOEM and BSEE are agencies within and accountable to their parent DOI, which has 

Order 3299, Secretary of Interior, U.S. Dept, of the Interior (May 19, 2010) and Reorganization of the Minerals Management Service, U.S. Dept, of the Interior (]uly 14, 2010). 

BSEE administers the new regime s safety program. Its role defined by DOI is to process permits to drill as safely as possible, enforee safety and environmental regulations, provide sustained regulatory oversight that is focused on compliance by operators with all applicable environmental regulations, train inspectors, perform various shared responsibilities with BOEM and the CG, and implement 

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Although the structures of these species were not determined, this metal vapor chemistry clearly showed that unsaturated hydrocarbons were viable reagents for lanthanides. Furthermore, this high energy technique showed that new regimes of organolanthanide complexes were accessible under the appropriate conditions. In addition, attempts to understand the synthesis of the products in reac-... 

Transition from Stick-Slip to Continuous Sliding in Atomic Friction Entering a New Regime of Ultralow Friction. 

These values correspond to the homogeneous steady-state solution of (14), which belongs to the thermodynamic branch. We first determine the conditions under which this solution becomes unstable and subsequently the properties of the new regimes that branch off at the point of instability. 

Techniques that can image molecular flow in single nanochannels will enhance understanding of flow in this new regime, accelerating device development. 

Recent developments in ultrashort, high-peak-power laser systems, based on the chirped pulse amplification (CPA) technique, have opened up a new regime of laser-matter interactions [1,2]. The application of such laser pulses can currently yield laser peak intensities well above 1020 W cm 2 at high repetition rates [3]. One of the important features of such interactions is that the duration of the laser pulse is much shorter than the typical time scale of hydrodynamic plasma expansion, which allows isochoric heating of matter, i.e., the generation of hot plasmas at near-solid density [4], The heated region remains in this dense state for 1-2 ps before significant expansion occurs. 

Experiments carried out on various blends with MDMO-PPV PCBM weight ratios ranging from 1 3 to 1 0.5 all displayed the same ultrafast electron transfer process, with a dynamics which was found to be almost independent of concentration. For much lower PCBM concentrations (weight ratios lower than 1 0.05), the formation time of the PA band increases to a few ps and the formation rate becomes a linear function of PCBM concentration. This indicates that, as previously observed [94], at low acceptor concentrations we enter a new regime in which the charge transfer process is mediated by disorder-induced diffusion of the excitations, which migrate until they reach a site favourable for charge transfer. 

The process has to operate in a new regime where an accurate process model is not available, yet the cost of off-line identification experiments for the development of such a model is prohibitively high, thus making closed-loop identification necessary. 

Figure 6. Slip length b deduced from the data of Fig. 4 and 5 as a function of the slip velocity Vg. The threshold for the onset of strong slip appears as a kink in the b (Vg) curve, at the critical velocity V. Above V, b increases with Vg. following a power law with an exponent 0.8 0.04. At very high shear rates, b deviates from the power law and the Vg dependence tends to saturate, indicating that a new regime of linear strong slip is approached.

One of our primary observations on cluster impact is that it provides a new regime of dynamics, where the activation process is thermal (due to collisions) but on a very short time scale (ten femtoseconds is typical). This opens a new regime of dynamics, where activation occurs on the same time scale as that of the vibrations of the nuclei. Hitherto, this was commonly possible only by photoactivation. Ordinary chemistry occurs in a regime where collisions are fast on the rotational time scale but slow on the vibrational one. The new regime is described in Sec. 3. 

Olivieri, N.F., Berriman, AM., Tyler, B.J., Davis, S.A., Francombe, W.H., Liu, P.P. Reduction in tissue iron stores with a new regime of continuous ambulatory intravenous deferoxamine. Amer. J. Hematol. 1992 41 61-63... 

Auguste-Louis Cauchy (1789-1857) was, as a contemporary of Leonhard Euler and Carl-Friedrich Gauss, one of the most important mathematicians of the first half of the 19th century. His most famous publications are Traite des Fonctions and Mechanique Analytique . As he refused to take the oath to the new regime after the revolution in 1830, his positions as professor at the Ecole Polytechnique and at the College de France were removed and he was dismissed from the Academie Francaise. He spent several years in exile in Switzerland, Turin and Prague. He was permitted to return to France in 1838, and it was there that he was reinstated as a professor at the Sorbonne after the revolution in 1848. 

The paper by Katz et al. also focuses on BECs and presents new experimental and theoretical results on excitation evolution and decay in a BEC. As the field of Bose-Einstein condensation is rapidly maturing, new regimes of interest are now coming under scrutiny. These include trapping in various optical lattice potentials - leading to squeezed atomic states and the Mott in-... 

A final example of the capabilities of MD simulations is given in this section. Nanotechnology is a fast growing research area that requires powerful models to explain the new regimes that appear when system sizes are reduced to nanometers. In this respect MD is one of such powerful techniques. We examine in this example how MD can be applied to study nanocluster interfaces. 

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