Conduits, structures

Conduits are commercial lending entities set up solely to generate collateral to be used in securitization. They are required by more-frequent issuers. The major investment banks have all established conduit arms. Conduits are responsible for originating collateral that meets the investor s requirements on loan type (whether amortizing or balloon, and so on), loan term, geographic spread of the properties, and the time that the loans were struck. Generally, pool diversification in terms of size and location is desirable, since this reduces the default risk for the investor. After it has generated the collateral, the conduit structures the deal with terms similar to those of CMOs but with the additional features described in this section. 

The multiproperty nonconduit structure is useful for originators with large pools of assets that do not expect to tap the market frequently. This differs from the single-borrower, multiproperty structure only in terms of how often it issues. It has more in common with a single-issuer, residential MBS transaction than with the conduit structure, with the added features of cross-collateralization and cross-default. 

Semi-submersible rigs are often referred to as semis , and are a floating type of rig. Like the jack-up, a semi is self contained. The structure is supported by large pontoons which are ballasted with water to provide the required stability and height. The rig is held in position by anchors and mooring lines or dynamically positioned by thrusters. A large diameter steel pipe ( riser ) is connected to the sea-bed and serves as a conduit for the drill string. The blowout preventer (BOP) is also located at the sea-bed ( sub sea stack ). 

Filtrate is collected in the underdrain system, which may be as simple as a network of perforated pipes covered by graded gravel or a complex structure with slotted nozzles or conduits that will retain the finest sand media while maintaining high flow rates. This latter design allows the use of both air and liquid for the backwashing and cleaning operations. 

Natural product synthesis poses the challenge to consider and develop new pathways of structural transformation. Natural products as targets for synthetic research possess a special fertility in this regard, because the structural channels of biosynthesis are not necessarily the conduits of organic synthesis. A. Eschenmoser19... 

This is the first reactor reported where the aim was to form micro-channel-like conduits not by employing microfabrication, but rather using the void space of structured packing from smart, precise-sized conventional materials such as filaments (Figure 3.25). In this way, a structured catalytic packing was made from filaments of 3-10 pm size [8]. The inner diameter of the void space between such filaments lies in the range of typical micro channels, so ensuring laminar flow, a narrow residence time distribution and efficient mass transfer. 

The liquid enters the micro channel device via a large bore that is connected to a micro channel plate via a slit (Figure 5.2). The slit acts as a flow restrictor and serves for equipartition of the many parallel streams [1, 3, 4]. The liquid streams are re-collected via another slit at the end of the micro structured plate and leave the device by a bore. The gas enters a large gas chamber, positioned above the micro channel section, via a bore and a diffuser and leaves via the same type of conduit. 

In humid or wet climates, ED breaks down rapidly. It is more persistent in shaded desert areas and creates the greatest hazard in buildings and underground structures such as tunnels, caves, utility conduits, and stagnant sewer lines.1 As a form of calibration, a downwind evacuation from a 55-gallon spill should be a minimum of 1.0 mile.2 See Table 3.3 for a summary of the symptoms of exposure and potential medical treatment options. 

Wetted instrument parts and pockets generally in accordance with wetted plant items in applicable area. Transmitter housings generally coated as structural steelwork above or constructed from 304L stainless steel according to availability and life-cycle cost. Cable insulation to be PVC, and carbon steel conduit (coated in accordance with guidance above) to be employed throughout. 

Fig. 12. Crystal structure of the complex formed between the heme and FMN domains of cytochrome P450BM-3 133). The FMN domain docks on the proximal surface of the heme domain. The thicker trace in the heme domain highlights residues 387 to the heme ligand, Cys400. This section of polypeptide contacts the FMN and might provide an electron transfer conduit to the heme ligand. The two interacting surfaces are electrostatically complementary, with similar complementarity expected for HO and NOS.

Although the above studies conducted with packed columns are important from a fundamental standpoint as they relate to the mechanisms of cell sorption to solid surfaces, in situ remediation of contaminants in subsoils requires microbial transport in well-structured soils. The presence of soil macropores that facilitate preferential water flow is well appreciated (Thomas Phillips, 1979). Sorption phenomena are less important when bacterial transport occurs through structured soils in which cells pass unimpeded through relatively large conduits (Smith et al., 1985). 

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