Ability to remove

Abrasive. Dentifrices have the unique ability to remove extrinsic tooth stains, which are caused by agents such as berries, tea, smoking, antibiotics, and certain bacteria as they attach to the dental pellicle. These stains can be removed only by abrasive cleaning a toothbmsh alone is not adequately effective. It has been shown that only 4% of a test population were able to maintain thein teeth in an acceptably stain-free state without an abrasive and that 18% of the population were "heavy" stainers (2). However, colored materials found in dental plaque are removable without abrasives. 

Normal reheat treatment can partially restore blade properties however, it does not appear to be capable of full property recovery, although the miscrostructures are comparable to new blades. This shortcoming implies that cavitation may be present and was not removed by conventional reheat treatment. Hot isostatic press (HIP) processing is an alternative that ensures void removal. It has demonstrated its ability to remove even gross internal shrinkage porosity in investment castings. The results of HIP treatment... 

The rate of heat generation from an exothermie reaetion is direetly related to the mass of reaetants involved. This and the ability to remove the heat, is an essential eonsideration in the seale-up of reaetors. In a eonventional vertieal eylindrieal reaetion vessel of diameter D,... 

The unit of heat is the watt. However, the imperial unit should be understood, as it will still be met, particularly outside Europe. The ton of refrigeration is derived from an ability to remove sufficient heat from a short ton (2000 lbs) of water at 32°F to turn it to ice at the same temperature in the course of 24 hours. This amounts to a heat extraction rate of 3.517kW. 

The ability to remove particulates has made RO indispensable in the production of ultra-pure water for microchip washing. Its ability to remove large molecules enables it to produce pyrogen-free water for the pharmaceuticals industry. In the USA and elsewhere RO is permitted for producing the water used in making up injectable preparations. The European Pharmacopoeia still insists on distillation for this, but the larger amounts of water needed for ampoule washing, etc. are often purified by RO. 

Most topical drains act on the skin but are not absorbed through the skin. These dnigp are used to soften, disinfect, or lubricate the skin. A few topical dru are enzymes that have the ability to remove Hie superficial debris, such as Hie dead skin and purulent matter present in skin ulceraHons. OHier topical dru are used to treat minor, superficial skin infecfions. The various forms of topical applicafions and locafions of use are described in Display 2-2. 

In an extensive study by Read et al. [93], 10 anionic surfactants were evaluated for their ability to remove pyritic sulfur and ash from ultrafine Illinois no. 5 coal by flotation processes. The authors observed that of the commercially available surfactants, sodium dodecyl sulfate was the most effective on either a weight or a molar basis, followed by a linear AOS (average molweight 272) and alkylpolyethoxylated sulfonates. Of the noncommercial surfactants tested, -(E -b-dodecene-b-suIfonate (f0) was the most effective and better than any commercial surfactant on a dosage/recovery basis. 

C—X) for the application at hand. Benzyl trans-l,3-butadiene-l-carbamate has the amino group protected with the benzyloxycar-bonyl group. The ability to remove this functionality by catalytic... 

Resistance to quinolones by efflux has been described in Staph, aureus and Proteus mirabilis. This gene has been designated nor A in Staph, aureus and is homologous to membrane transport proteins coupled to the electromotive force. These proteins have the ability to remove small amounts of quinolone from cells normally and nor A may have arisen as a result of mutations under selective pressure from quinolone use, resulting in a transport protein with increased affinity for these agents. 

Three types of membranes used for dialysis are classified by the size of the pores and the ability to remove solutes from the... 

White patches on tongue, gums, or buccal mucosa removal of patches reveals erythematous and bloody tissue ability to remove patches distinguishes OPC from oral hairy leukoplakia... 

Most of the SFE-SFC devices developed are designed to obtain qualitative results. However, various quantitative analyses of polymer additives have been reported [82,87,91-93], The ability to remove the SCF is particularly important when SFE is coupled on-line... 

Applications SFE-SFC solves problems in such diverse areas as polymers/monomers, oils/lubricants, foods, pharmaceuticals, natural products, specialty chemicals, coatings, surfactants and others. Off-line SFE-SFC survives alongside on-line determinations of additives, because of the need for representative sample sizes. Off-line SFE-SFC was used for extraction of AOs from PP [102]. In cases where the analyst wishes to perform further analysis on the extracted species, it is useful to be able to isolate the extract from the solvent. The ability to remove the solvent easily is particularly important when SFE is coupled on-line to chromatographic techniques, but is equally important for trace analysis when it is useful to concentrate... 

Granular activated carbon (GAC) is commonly used to remove contaminants from drinking water. It has the ability to remove contaminants to very low concentrations. Brunotts and colleagues66 have studied 11 chemical spills and 18 groundwater contamination cases, which have shown that most... 

The ability to remove contaminants in the feedstock and to produce a clean syngas product. 

During repelletizing, the PET is melted, homogenized and solidified in a uniform shape. Repelletizing is carried out after a pre-drying step or directly with undried flakes, depending on the ability to remove moisture inside the extruder and the intended final IV. Although IV retention is usually a major concern,... 

Air-cooled zone modules do not have the ability to remove as much energy as do water-cooled units. For processes that only require a low level of cooling, air-cooled units will provide a more stable control of the temperature. Recent Innovations In air cooling using high-flow fan systems [12] have allowed the replacement of some water-cooled systems with less costly and lower maintenance air-cooled systems [11]. 

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