G ood surface preparation is conducive to good coating adhesion and anticipated service life. International surface preparation standards are clearly documented, and visual standards exist for abrasiveblasted steel; such factors assure contractors that all likely will bode well in a lead-abatement project. Matters become difficult, however, when surface preparation standards are unclear or when...

The idea of using layered architectures is a common one in communication systems, operating systems and other large system programs. The general principle is that each layer offers services for use by active objects in the layer above. The layered architecture described in the OSI Basic Reference Model [8] is a particular example of this, specifying which layers are conceptually to be found in ...

Mechanical property and impact resistance mechanism of bionic layered composite was investigated. Due to light weight and high strength property, white clam shell was chosen as bionic model for design of bionic layered composite. The intercoupling model between hard layer and soft layer was identical to the layered microstructure and hardness tendency of the white clam shell, which connected th...

We define the notion of almost $n$-layered $QTAG$-modules and study their basic properties. One of the main result is that almost 1-layered modules are almost $(omega+1)$-projective exactly when they are almost direct sum of countably generated modules of length less than or equal to $(omega+1)$. Some other characterizations of this new class are also established.

This review reports recent advances in the field of polymer–layered silicate nano composites. Thesematerials have attracted both academic and industrial attention because they exhibit dramaticimprovement in properties at very low filler contents. Herein, the structure, preparation andproperties of polymer–layered silicate nanocomposites are discussed in general, and finally the effectof clay na...

In recent years a range of single programming language systems have been developed that are supported by a persistent store. Examples of such systems include Argus, Galileo, PS-algol and Smalltalk. Although each of these systems is based on a subtly different concept of persistence a common approach is to utilise a layered architecture. This paper presents the design of one such layered archite...

In recent years a range of single programming language systems have been developed that are supported by a persistent store. Examples of such systems include Argus, Galileo, PS-algol and Smalltalk. Although each of these systems is based on a subtly different concept of persistence a common approach is to utilise a layered architecture. This paper presents the design of one such layered archite...

In this paper, we assess the impact of layered spacetime detection technique, known as V-BLAST, for multiuser detection over a packetized random access system based on CDMA and Slotted ALOHA. In this scheme, the multiple transmit antennas are treated as individual packet radio mobile stations, while the base station consists of multiple receive antennas. In addition, users are arranged in group...