Second Core

Day 14, Second core biopsy Start RT50 Gy 2Gy/fraction... 

The continued addition of matter increases the density and temperature of the core until H2 begins to dissociate. The dissociation consumes heat, which holds temperature approximately constant, i.e. the heat capacity becomes very high and y - 1. The stability condition y >4/3 becomes violated and a new collapse of the core ensues. The core collapses until all H2 is dissociated and the H finally becomes ionized. The temperature then increases again with further contraction and the second core is formed that approaches stellar density. The second collapse phase is short and lasts for a solar-type star of the order of 103 years. By this event a protostellar embryo is born, which continues to grow in mass by collecting the remaining material from its environment. 

Figure 1. Molecular architecture and phylogenetic analysis of coronin 7 proteins. A), Domain structure of human coronin 7. Core domains consisting of WD repeats are preceded by "coronin signature" motifs. Note the low complexity proline, serine- and threonine-enriched domain preceding the second core. B), Partial comparison of amino acid sequences of human coronin 7 (top), Drosophila PODl isoform A (middle) and C. elegans POD-1 (bottom). Predicted Yxx motifs are highlighted in gray and boxed. C), Partial comparison of amino acid sequences of human, dog, mouse and rat coronin 7 (top to bottom). Predicted Yxxo motifs are highlighted in gray and boxed. See text for details.

At site A in Table 16, concentrations of all metals in the second soil-core depth were higher than those in the first soil-core depth. Bismuth and antimony concentrations in the soil core under the second core depth were less than those of natural concentrations, 0.34 and 0.37 /rgg , respectively. At sites B and C, the profiles of metal concentrations were somewhat different from those in site A The difference is probably due to dissimilarities in pollution history, surrounding circumstances and properties of soil. 

L. Mandicourt, ed.. Manufacture of the Second Core of Rapsodie-Type 2A-Fortissimo Fuel, Report CEA-R-4881, Centre d Etudes Nucleaires de Cadarache, France, November 1977. 

In Figure 3, there is a suspect point plotted at 6.35 cm, taken in August 9, 1984, with a concentration of 8.2 ppb. There were two cores taken in August of 1984 for Plot A. The corresponding concentration in the second core was found to be 98 ppb. All TCDD analyses for the August 1984 cores yield concentrations between 86 and 115 ppb. We conclude that sample is an outlier probably due to human error in the analysis. 

With the introduction of the second core, the HTTR will be the first-of-its-kind nuclear reactor to be connected via a He-He heat exchanger to a high-temperature process... 

Prior to the drilling of the well all geological data, including the seismic was thoroughly reviewed and analyzed. From the data at hand there was no reason to expect an influx of fluid during the second core run in the Prairie Evaporite Formation. Not only is it unusual to encounter fluids in the middle of the salt bed, the pressures encountered in this well are abnormally high for the potash exploration industry. The zero casing and drill pipe pressure was achieved when the fluid column was at 2000 kg/m3. This equates to a bottom-hole pressure of approximately 30 MPa which is hydrostatically over-pressured by about 15 MPa. 

The project is intended to establish and upgrade the technology basis necessary for advanced HTGR developments. Some heat utilization system is planned to be connected to the HTTR and demonstrated at the former stage of the second core. At present, steam-reforming of methane is the first candidate. Also the HTGR with Gas-Turbine has been studied for assessment of technical viability. 

The second core theme of Habermas work is the notion that modern societies are divisible into two component parts, the system and the lifeworld, distinct spheres which together form the social world. By lifeworld, Habermas refers to the everyday mutual understandings, values, and interactions that form the basis of informal social relations (1987 Ch. Vl/1). Institutions such as the family, community, culture, and media all constitute the sphere of shared experiences, beliefs, cultural knowledge, and values (Weaver 2009 11). As such, the lifeworld is the sphere of social action where forms of communicative rationality... 

Holbrook and Bernard (3) determined the dye adsorption capacities also in a second set of four Berea cores which were processed as follows. The first core was initially saturated with water and then driven down to irreducible water with Soltrol, the second core was initially saturated with Soltrol, driven with water to irreducible oil and then with Soltrol to irreducible water. 

The third and the fourth cores were treated with 0.1 percent and 5 percent Dri-Film, respectively, dried and then subjected to the same sequence of operations as the second core. On all four samples water imbibition tests were run and subsequently the dye adsorption capacities were determined. The third and the fourth cores imbibed only a few percent pore volume of water, the second core about 30 percent, the first core, however, imbibed about 55 percent pore volume of water. The dye adsorption capacities... 

Two core plugs from a carbonate reservoir (calcite) were used [68]. One core holder held a high permeability core (initial brine permeability = 535 mD) and the second core holder had a low permeability core (initial brine permeability = 3.1 mD). The cores and floating-piston eeUs were placed inside a temperature-controlled oven. Foam quality was varied by adjusting the flow rates of nitrogen and the snrfactant solution while keeping the total flow rate at 5 cm /min. 

The critical experiment on the second core lor the Fermi sodium-cooled, fast reactor yielded basic critical details, reactivity effects of various reflectors, and further physics data. 

In the second core step of an S 1 process, a nucleophile attacks the carbocation... 

Compare the two core steps of an El mechanism with the two core steps of an Sjvjl mechanism (Figure 8.21). In Section 7.6, we saw that an Sjvjl process can have up to three additional steps (Figure 8.22). Similarly, we might expect that an El mechanism could also have up to three additional steps. However, in practice, nothing ever happens after the second core step. An El process can only have up to two additional steps (Figure 8.23). 

The second core step of an El process is a proton transfer to form an alkene... 

The first core supplies to the second a multi-dimensional vector containing the calculated local operating conditions (e.g. local hquid water content across the CL thickness) at the simulated time t (instantaneous state variables). The second core returns to the first a calculated multi-dimensional vector containing information about the new electrocatalytic and transport properties induced by the local CL or PEM structure degradation. This feedback allows calcttlation of the cell potential decay over operation time The relationships between the stmctural... 

---