Control recovery

Environmental Factors. The control, recovery, and disposal of mercury-bearing waste products are as important to the mercurials industry as the manufacturing process. The difficulties involved in removing mercury from waste-product streams and the problems of recovery or disposal have resulted in a substantial reduction in the number of manufacturers of mercury compounds as well as in the variety of mercury compounds being manufactured. Moreover, the manufacturing process used for a mercury compound may not necessarily be the most efficient or economical. Rather, the choice may depend on the nature of the by-products, the toxic hazard of the process, and the ease of recovery of the mercury from the waste-product stream. 

AATCC Test Method no. 66 describes measurement of recovery angle after placing a crease in a specimen. The specimen is creased by subjecting is to a prescribed load for a length of time. The recovery angle is then measured after a controlled recovery period. Recovery angles of greater than 120° are... 

Parallels have been drawn between archaeological and forensic chemistry (Heron 1996), since the forensic chemist often has to deal with similarly small and degraded samples. In many ways, there is a close relationship between the two. Both derive evidence from samples obtained from a controlled recovery situation, and both attempt to reconstruct patterns of human... 

The space between inner and outer cylinders forms the annulus. The column bottom plate is made of stainless steel and typically contains 90 exit holes below the annulus. The holes are covered by a filter plate to keep the stationary phase in place. Three different column sizes are available for the laboratory P-CAC unit the physical characteristics of the different annular columns are summarized in Table 1. The collection of the different fractions at the lower end of the annular column is regulated by a fixed glide ring system. Each chamber in the fixed glidering corresponds to an exit holes in the bottom plate of the column. The number of exit holes equals the number of chambers. The fixed glide ring system allows the continuous and controlled recovery of the separated fractions at the end of the column. Thus cross contamination is avoided and precise fraction collection is ensured. The whole process of collecting the fractions is conducted in a closed system. Unused eluent can be easily recycled. 

Paulet and Desbrousses (1970) exposed groups of 10 rats/sex (strain not specified) to chlorine dioxide vapors at a concentrations of 0 or 2.5 ppm (6.9 mg/m ), 7 hours/day for 30 days. The weekly exposure frequency was not reported. Chlorine dioxide-exposed rats exhibited respiratory effects that included lymphocytic infiltration of the alveolar spaces, alveolar vascular congestion, hemorrhagic alveoli, epithelial erosions, and inflammatory infiltrations of the bronchi. The study authors also reported slightly decreased body weight gain and decreased erythrocyte and increased leukocyte levels, relative to controls. Recovery from the pulmonary lesions was apparent in rats examined after a 15-day recovery period. 

The advantage of the high-explosive assembly over laser irradiation and electrical discharge devices is the controlled recovery of the sample. The recov-ciy system consists of two rectangular steel blocks acting as momentum traps and a cylindrical ARMCO iron container, which is embedded into the upper steel block. The disc-shaped specimen is encapsulated in this container This design allows complete recovery of relatively large samples (diameters of 10— 20 mm and thickness up to several millimeters). 

Atmospheric Contaminants. (Nature of sulfur production, sulfur losses, by-product sulfur recovery, pollution control, recovery of SO2, recovery of H2S, recovery of S° 66 references.)... 

Waste Management, Control, Recovery Reuse Kirov 1975 Analysis of Organic Pollutants in Water Leithe 1973 Extraction of Minerals and Energy Deju 1974... 

Examples of OEM-controlled recovery co-operations have appeared within several sectors such as the automotive industry, durable goods, information technology equipment, and carpets [3-5]. 

In particular, there is a need to address the method of recovering the diver after completing the work or in an emergency situation when they may be unconscious. Entry tends to be quite simple but having completed an element of work the ability to climb a vertical ladder may be seriously impaired and some other form of controlled recovery may be required. 

Han G, Chari NS, Verma A et al (2005) Controlled recovery of the transcription of nanoparticie-bound DNA by intracellular concentrations of glutathione. Bioconjug Chem 16 1356-1359... 

Organic/organic C3H6/C3H8. Si02, MFI zeolite (ZSM, pollution control, recovery of helium Olefin/paraffin... 

Air Traffic Control Recovery mechanisms - human and/or machine-based safety nets. 

For Test Method D, when the recovery of oxygen from the QC SRM is less than 0.8S (that is, 8S %), take corrective action and repeat the quality control. Recoveries that are greater than 0.85 but less than unity can be used to correct the calculated result (refer to the r parameter in Section 10). 

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