Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Delta shock

In summary, although the weakly hyperbolic nature of Eq. (8.7) has been shown rigorously only for ID phase space (i.e. one velocity component in the KE), experience strongly suggests that the full 3D system is also weakly hyperbolic. This observation implies that the numerical schemes used to solve the moment-transport equations closed with QBMM must be able to handle local delta shocks in the moments. Qne such class of numerical schemes consists of the kinetics-based finite-volume solvers presented in Section 8.2. As a final note, we should mention that the work of Chalons et al (2012) using extended Gaussian quadrature (see Section 3.3.2) and kinetics-based finite-volume solvers to close Eq. (8.7) suggests that the system with 2A + 1 moments is fully hyperbolic and thus does not exhibit... [Pg.334]

Bom, W., Hall, L, Dallas, A., Boymel, J., Shinnick, T., Young, D., Brennan, P O Brien, R. (1990). Recognition of a peptide antigen by heat shock-reactive gamma delta T lymphocytes. Science 249, 67-69. [Pg.451]

Selmaj, K., Brosnan, C.F., Raine, C.S. (1991). Colocalization of lymphocytes bearing gamma delta T-cell receptor and heat shock protein hsp65 oligodendrocytes in multiple sclerosis. Proc. Natl. Acad. Sci. USA 88, 6452-6456. [Pg.460]

In practice, a material that is "dead" will store much of the applied energy and has a low resilience and a relatively high tan delta. A material that returns much of the energy has a high resilience and a low tan delta. These properties have an influence on the grades used for shock absorbers, springs, bushes, or wheels. [Pg.120]

Maggi, L. B.Jr., Sadeghi, H., Weigand, C., Scarim, A. L., Heitmeier, M. R., and Corbett, J. A. (2000). Anti-inflammatory actions of 15-deoxy-delta 12,14-prostaglandin J2 and troglitazone Evidence for heat shock-dependent and -independent inhibition of cytokine-induced inducible nitric oxide synthase expression. Diabetes 49, 346-355. [Pg.176]

In addition to locomotor activity, delta opioid agonists produce convulsions in mice [41,43], rats [34,35], and monkeys [44 46], In the past, chemical-induced convulsions induced by camphor or pentylenetetrazol (Metrazol) were used as treatments for depression today, however, ECT is the only convulsant therapy used because the treatment-induced effects are less unpleasant than those produced by chemical convulsants [47]. ECS was demonstrated to have antidepressant-like effects in the forced swim test in rats [3], and ECT is a very effective treatment for depression in humans. Based on these observations, it was proposed that delta opioid agonists produce antidepressant-like effects tough a convulsive- or electroconvulsive shock (ECS)-like mechanism of action [41]. [Pg.362]

Studies with the irreversible mu antagonist beta-FNA provided a linkage between the in vitro ligand binding evidence for a mu-delta opioid receptor complex and the in vivo evidence described above [18]. As noted above, in vivo administration of beta-FNA blocks delta agonist modulation in the antinociception models and delta antagonist effects in the seizure, endotoxic shock, and striatal cAMP models. As reported by Rothman et al. [18], either pretreating membranes with beta-FNA or ICV administration of... [Pg.379]

D Amato R, Holaday JW. Multiple opiate receptors in endotoxic shock evidence for delta involvement and mu-delta interactions in vivo. Proc Natl Acad Sci USA 1984 81 2898-2901. [Pg.381]

UDMH is neither shock- nor heat-sensitive, and it is a stable liquid even at high temperature. A key advantage is its low freezing point (-71°F). Furthermore, it is compatible with nickel, Monel, and stainless steel. UDMH is often used as rocket propellant mixed with hydrazine in various proportions. A 50/50 mixture with hydrazine, Aerozine-50, is used for the current Delta II Stage 2. Anecdotally, the Titan IV vehicle fly-out (last flight) occurred in October 2005 with vehicle B-26, a black mission with a satellite for the National Reconnaissance office (NRO) engines. [Pg.1785]

Brady, L.S. Lynn, A.B. Glowa, J.R. Le D. Herkenham, M. . Repeated Electroconvulsive Shock Produces Long-lasting Increases in Messenger RNA Expression of Corticotropin-releasing hormone and Tyrosine Hydroxylase in Rat brain. Therapeutic implications. J Clin Invest 1994 94 1263-1268. Burstein, S. Delta l-THC-7-oic acid and Analgesic and Anti-inflammatory Agents 1989 US 4,847,290... [Pg.178]

E.T. Maizels, C.A. Peters, M. Kline, R.E. Cutler and M. Shanmugam, Heat-shock protein-25/27 phosphorylation by the delta isoform of protein kinase C, Biochem. J. 332, 703-712 (1998). [Pg.73]

Embedded gauges and the Ignition and Growth model are also used to study preheated, shocked explosives. Figure 8 contains four pressure histories in 190 C LX-04 (85% HMX and 15% Viton binder) impacted by an aluminium flyer plate at 0.92 km/s. This temperature is sufficient to cause the conversion of beta HMX to delta HMX before shock impact occurs. The LX-04 containing delta HMX is more sensitive than at temperatures of 25°C, 150 C, and 170°C at which the HMX remains in the beta phase [66]. [Pg.508]

Both loose and dense soil structures are capable of supporting considerable static overburden loads with little or no distortion. However, loose soils with grain sizes in the coarse silt fine sand range are inherently metastable as shown by Terzaghi (1925). Shocks and vibrations readily cause movement of the particles to denser, more stable arrangements. Highly metastable, loose sediments are often produced by rapid deposition of silt and fine sand in quiet environments, such as delta fronts of large rivers. Many of the fine silt-sized... [Pg.225]

There are no abrupt transitions. The dynamic loss modulus or storage modulus (E") which relates to the polymer s ability to absorb mechanical shock and the mechanical loss factor tan delta (E /E ) show that glass transition of the polymer is at -30 C and that there is an alpha transition around 60 C. In general, the KYHAR homopolymer possesses useful mechanical properties from -80 c to 150 C. [Pg.291]


See other pages where Delta shock is mentioned: [Pg.24]    [Pg.334]    [Pg.335]    [Pg.24]    [Pg.334]    [Pg.335]    [Pg.10]    [Pg.431]    [Pg.213]    [Pg.233]    [Pg.359]    [Pg.375]    [Pg.376]    [Pg.459]    [Pg.475]    [Pg.146]    [Pg.602]    [Pg.39]    [Pg.282]    [Pg.169]    [Pg.59]    [Pg.1578]    [Pg.145]    [Pg.598]    [Pg.650]    [Pg.420]    [Pg.10]   
See also in sourсe #XX -- [ Pg.24 , Pg.334 , Pg.335 ]




SEARCH



Delta

© 2024 chempedia.info