Bare Panel

For a complete panel replacement, the refinisher starts with a panel preprimed in the appropriate stoving primer. For spot repairs or larger repairs without replacement of metal, there will be areas which have to be rubbed through to clean metal. Any indentations then have to be filled with a stopper or spray filler, probably based on unsaturated polyester resins and styrene, with cure initiated by mixing in an organic peroxide. After sanding, remaining bare metal areas are sprayed with a two-pack etch primer. 

Figure 22. Shown in panel (a) is the relation between the bare energy difference e between frozen-in structural states in a glass and the effective splitting e that is smaller due the level repulsion in the tunnehng center. Panel (b) depicts schematically the derivative of e with respect to e, which is used to compute the new effective distribution P(e) of the transition energies.

Epoxy acrylate (Ebecryl 3700, 50%) combined with 25% TMPTA, 25% I BOA and with DIBF-OPPI-DIDMA pigment and FC-171 as above was also used to coat panels. These panels showed no removal of coating in the cross hatch adhesion test. With 6.8j there was no loosened coating on the frontal impact surface, and only 30% was loosened on the back surface. Five hundred grams were required to scratch to bare metal with the balanced beam. Performance was... 

Hader, H. "Effects of Bare and Cased Explosive Charges on Reinforced Concrete Panels," Symposium Proceedings, The Interaction of Non-Nuclear Munitions with Structures, U.S. 

All resins except polybutadiene formulated with conventional melamine cross-linkers, applied to SAE 1010 bare steel paint test panels, and baked to yield cross-linked, solvent resistant films. 

A temperature of 350 F. is maintained on the bare surface of the panel for 30 minutes and the flame temperature regulated. This test indicates the usable limits of the coating system. 

The heat transfer through the same composition mastic by flame temperature of 2000 F. directed against it is illustrated by three test panels of steel 3/16 inch thick and 12 inches square. One panel was soated with 9/16 inch of mastic, and the second bad steel wire lath welded on a five points and then covered with 1/2 inch of mastic the third panel was left bare. The source of fire for the tests was a large gas burner with forced air feed. Temperatures of the heat source and heat transfer on the uninsulated side were made with the thermocouple. The results of the fire test were as... 

The first chronological demonstration of chrom-NMR is shown in Figure l,14 and consisted in testing an analogy of both inverse (naphthalene, ethanol and dec-1-ene in deuterated ethanol on a octadecylsilyl Octadecylsilane (ODS) phase) and direct (dichlorophenol, ethanol and heptane in deuterated cyclohexane over bare silica) chromatographic conditions. In these examples, a logical correspondence between the observed variation in mobility induced by the solid and the outcome expected on the basis of LC is confirmed. Thus, (Figure 1, top panels)... 

Figure 1 First chronological demonstration of the principle of chrom-NMR, on two pseudo-chromatographic setups. The top panels illustrate a DOSY layout for a mixture of naphthalene, ethanol and dec-l-ene in deuterated ethanol in pure solution (A) and upon addition of an ODS phase (B). A second set of DOSY experiments is shown in the bottom panels, for a mixture of dichlorophenol, ethanol and heptane in deuterated cyclohexane in pure solution (C) and upon addition of a bare porous silica phase (D). Adapted from Ref. 14. Copyright 2003 National Academy of Sciences, USA.

Figure 2 Comparison of HPLC (top panels) and chrom-NMR (bottom panels) for a series of homologous aromatic molecules, recorded under RPLC (left panels ODS solid phase and water/acetonitrile mobile phase) and HILIC conditions (right panels bare silica solid phase and water/acetonitrile mobile phase). From Ref. 49. Copyright 2006 Wiley-VCH Verlag GmbH Co. KGaA, Weinheim.

Figure 4 Example of the application of chrom-NMR/HRMAS with regular NMR solvents and bare silica as a solid phase. Left panel aromatic molecule homologues in deuterated chloroform benzene, naphthalene and anthracene. Right panel alcohol mixture ethylene glycol, phenol, isopropanol in deuterated water. Adapted with permission from Ref. 53. Copyright 2008 Elsevier.

Figure 5 H DOSY without (left panel) and with (right panel) the addition of silica illustrating chrom-NMR without HRMAS, as the mobile phase (a CHCI3/CH2I2 mixture) is magnetic susceptibility matched to bare silica. Adapted with permission from Ref. 23. Copyright 2008 Elsevier.

Fig. 3.8. (a) Experimental (dotted lines) and best-fit model (solid lines) IRSE spectra of a (0001) ZnO bulk sample. The ZnO phonon modes, as obtained by IRSE, are marked by vertical arrows, (b) Experimental (dotted lines) and best-fit model (solid lines) IRSE spectra ( h only) of a (0001) ZnO thin film on (0001) sapphire (upper panel, thickness d 1970 nm) and of a bare (0001) sapphire substrate (lower panel). The ZnO phonon modes, as obtained by IRSE, are marked by arrows. The IR-active modes of sapphire are indicated by solid (TO) and dotted (LO) vertical markers. Reprinted with permission from [38]... 

Thermal transmission testing is an excellent way of detecting various types of anomalies such as surface corrosion under paint before the corrosion becomes visually evident. Thin, single-layer structures, such as aircraft skin panels, can be inspected for surface and subsurface discontinuities. This test is simple and inexpensive, although materials with poor heat-transfer properties are difficult to test, and the joint must be accessible from both sides. For nonmetallic materials, the defect diameter must be on the order of 4 times its depth below the surface to obtain a reliable thermal indication. For metals, the defect diameter must be approximately 8 times its depth. Some bright surfaces such as bare copper and aluminum do not emit sufficient infrared radiation and may require a darkening coating on their surface. 

A simple model without (dashed line) and with roughness Convolution (solid line) is also shown. The insets in panels a and b show the reflectivity data and the EDPs, respectively, of the bare toluene-water interface and the corresponding fit (solid line). 

She led me into a lar, wood-panelled room An age-worn leather chesterfield faced a fire on wtrich a pile of fogs were gbwing The carpet was Persian, old but still beautifiil Surrounding it were bare floorboards burnished to a deep unber. The room smelled appealing of pine and wood smoke. 

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