Boom, booms

Thump. Twang. Doing. Dweep. Clink. Boom-boom-boom. Drip-drip-drip. While these are often descriptions of sounds we hear, they are also descriptions of vibrations we feel. 

Containment boom — A floating mechanical structure that extends above and below the water surface and is designed to stop or divert the spread or movement of an oil slick on the water. Booms consist of floats, a freeboard member to prevent oil from flowing over the top of the boom, a skirt below the water surface to prevent oil from being swept under the boom, and one or more tension members to support the entire boom. Booms are an integral part of virtually all cleanup programs after oil spills on water. (See also Boom failure, Critical velocity, Freeboard.)... 

Improvised booms — Booms constructed from readily available materials such as railroad ties and logs. Improvised booms can be used as temporary containment structures until more suitable commercial booms arrive at the spill site. They can also be used in conjunction with commercial containment booms to divert oil into areas where the commercial booms are positioned. 

Chicago boom Boom mounted to existing structure which acts as mast, and to which is attached boom topping lift and pivoting boom support bracket. Load lines operated from independent hoist. Swing angle from 180 to 270deg (3.14 to 4.71 rad). function of support structure... 

The first priority in any spill is to stop the source of leakage. The second priority is to contain the spiU so that further environmental damage does not occur. Spills on water can be contained using the many commercial spill containment booms. Booms will contain floating liquids up to a relative speed of knot. This is an important limitation because in many situations this velocity is exceeded. Attempts to contain oil on some open waters and across tidal bays will be futile. Tidal currents often exceed 2 knots and can be as much as 8 knots. Placement of booms requires extensive manpower and time. 

F) The use of machines having live booms (booms in which lowering is controlled by a brake without aid from other devices which slow the lowering speeds) is prohibited. 

Booms - booms designed for use on watercourses may also be used to isolate drains or divert or contain spillages on site. They may be permanently fixed in position or deployed at the time of an incident. There are two distinct types of boom those that are filled with absorbent material which can be suitable for hydrocarbons, aqueous chemicals or both and those that are typically plastic and form a physical barrier to limit the spread of the contaminant. 

The first task was the aeation of large 3D chemical structure databases. By devising so-called fast Automatic 3D model builder, software such as the CORINA [27, 28] and CONCORD [29, 30] programs resulted in a boom in 3D database development (see Section 2.9 in this book and Chapter II, Section 7.1 in the Handbook). A subsequent step was the development of fast... 

The principal worldwide manufacturers of nylon resins are given in Table 6. Total sales of nylon plastics in the United States and Canada in 1993 were 331,000 metric tons (37). West European sales were 352,000 t and Japanese sales 220,000 t (37). Figure 7 shows how sales in the United States have steadily increased since 1967 (38) and also how the price of nylon-6,6 has changed (39). The effect of the oil price rises, the boom of the mid-1980s, as well as the oil price reduction and the recession that followed are clearly evident. Table 7 shows the variation of price across different polyamide types. 

More often than not, however, the demand for post-consumer materials has failed to keep pace with this boom in collection. In many regions of the United States and elsewhere, the supply of recyclable materials is so great that cities have been forced to either store the materials or curtail the number of items collected. Many principal cities worldwide have reported occasions when source-separated materials were actually sent to dumps or incinerators rather than being recycled (4). 

Draglines are equipped with a 71-m bucket at the end of a 111-m boom and can be employed to dig both a portion of the overburden, which is free-cast into the mining pit, and the tar sand, which is piled in windrows behind the machine. Bucket-wheel reclaimers, similar to bucket-wheel excavators, load the tar sand from the windrows onto conveyor belts which transfer it to the plant. 

G. J. Jennings, A. Belkum, L. van Boom, and M. Wiser, "Analysis of VariabiUty of the Merozoite Surfact Protein of Plasmodian berghei," 44th Annual Meeting of the American Society of Tropical Medicine and Hygiene, San Antonio, Tex., Nov. 17—21,1995. 

VAN BOOM Phosphoiylallng reagent Phosphoiylainn ot sugars or nucleosides by means ot sallcylchlorophospite 2. 

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