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1

Digitale Medien

Hydrologic Testing of Tight Zones in Southeastern New Mexico (1981)

Dennehy, Kevin F. ; Davis, Paul A.

Oxford, UK : Blackwell Publishing Ltd

Ground water 19 (1981), S. 0

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ISSN: 1745-6584

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Energietechnik , Geologie und Paläontologie

Notizen: Increased attention is being directed toward the investigation of tight zones in relation to the storage and disposal of hazardous wastes. Shut-in tests, slug tests, and pressure-slug tests are being used at the proposed Waste Isolation Pilot Plant site, located in southeastern New Mexico, to evaluate the fluid-transmitting properties of several zones above the proposed repository zone. Apparatus used to conduct these tests includes a pressure-transducer system connected to a recording device at the land surface. All three testing methods were used in various combinations to obtain values for the hydraulic properties of the test zones. Multiple testing on the same zone produced similar results. Transmissivities determined by these tests range from 0.00001 to 10 feet squared per day (.000001 to 1 meter squared per day).

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1745-6584.1981.tb03498.x

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2

Digitale Medien

RESPONSE OF BACTERIA TO THE PRESENCE OF CARBARYL IN WATER. I. RESPONSE OF BACTERIAL INDICATORS VS. RESPONSE OF PATHOGENIC BACTERIAL SPECIES (1981)

Anugwelem, Ure A. ; Guthrie, Rufits K. ; Davis, Ernst M.

Oxford, UK : Blackwell Publishing Ltd

Journal of the American Water Resources Association 17 (1981), S. 0

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ISSN: 1752-1688

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Architektur, Bauingenieurwesen, Vermessung , Geographie

Notizen: : Escherichia coli, Streptococcus faecalis, Salmonella typhimurium, and Staphylococcus aureus were tested by plate counts and Warburg respirometry to determine effects of the presence of carbaryl in water. E. coli and S. typhimurium were initially stimulated in the presence of the insecticide whereas S. faecalis and S. aureus were inhibited. Over a period of days, all bacteria died off more rapidly in the presence of carbaryl. The implications of these data in regards to bacteriological testing of water quality are discussed.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1752-1688.1981.tb01933.x

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3

Digitale Medien

RESPONSES OF BACTERIA TO THE PRESENCE OF CARBARYL IN WATER. II. PURE CULTURE VS. MIXED CULTURE RESPONSE (1981)

Guthrie, Rufus K. ; Anugwelem, Ure A. ; Davis, Ernst M.

Oxford, UK : Blackwell Publishing Ltd

Journal of the American Water Resources Association 17 (1981), S. 0

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ISSN: 1752-1688

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Architektur, Bauingenieurwesen, Vermessung , Geographie

Notizen: : Escherichia coli. Streptococcus faecalis, Salmonella typhimurium, and Staphylococcus aureus were tested in pure culture and in various combined mixed cultures to determine effects of the presence of carbaryl in water. Oxygen uptake of E. coli and S. typhimirium was stimulated by five mg/L carbaryl when mixed together, but no stimulation was observed when either organism was tested alone or with other bacteria. In mixed culture the survival time of S. faecalis was reduced in the presence of five mg/L carbaryl; however, the survival time of both S. aureus and S. typhimurium was increased in the presence of five mg/L carbaryl. Implications of these results are discussed.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1752-1688.1981.tb01934.x

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4

Digitale Medien

Can Fitting in Green Beans: Effect of Growing Season, Base Steel Composition, Tinplate Thickness, Can Vacuum and Storage Conditions (1981)

DAVIS, D. R. ; WIESE, K. F.

Oxford, UK : Blackwell Publishing Ltd

Journal of food science 46 (1981), S. 0

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ISSN: 1750-3841

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung

Notizen: Spring and fall grown green beans were packed under high and low vacuum conditions in high and low residual Al, Ni, Cu, Si, S, and Mn base steel .25 and .50 electrotin plated J-enamel cans and evaluated during storage at 38°C and room temperature for pitting on and under the s deseams. Cans containing spring grown beans were more severely pitted than those of the fall pack. High residual (0.061%) Cu steel cans were more severely pitted than other treatments. The .25 electrotin plated cans were more severely pitted in high Cu residual cans, as were the low vacuum spring pack cans at 38°C storage.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1365-2621.1981.tb04877.x

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5

Digitale Medien

Influence of Postmortem Aging Period on the Fragmentation Index of Bovine Longissimus Muscle (1981)

COLE, A. B. ; DAVIS, G. W.

Oxford, UK : Blackwell Publishing Ltd

Journal of food science 46 (1981), S. 0

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ISSN: 1750-3841

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung

Notizen: A total of 59 short loins were aged at 2°C for 60, 120, 180, and 240 hr postmortem PM). Following each aging period, steaks were removed for shear force value (SFV) and fragmentation index (FI) measurements. One steak was removed at 60 hr PM for chemical determination. FI was significantly related (r=0.30-0.63) to SFV in 32 comparisons. Variation in FI and SFV for PM aging period and residue fraction drying time (0 and 10 min) was not significant; thus, FI can be accurately determined by omission of the 10 min residue fraction drying time. FI determined on bovine longissimus muscle at 60 hr PM was related (P 〈 0.05) to SFV of cooked loin steaks from loins aged 60, 120, 180, and 240 hr PM. FI determined at 120, 180 or 240 hr was also related (P 〈 0.05) to SFV of loin steaks. Simultaneous consideration of five carcass traits (marbling degree, lean color, lein firmness, fat thickness, and carcass weight) accounted for approximately 10% of the observed variation in SFV for cooked steaks from loins aged 60–240 hr, while FI accounted for an additional 15–42%. These data indicate that SFV of cooked loin steaks from A maturity carcasses can be predicted to a significant degree by FI of law muscle determined at 60 hr PM.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1365-2621.1981.tb04933.x

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6

Digitale Medien

Relationship of Fiber Type Composition to Marbling and Tenderness of Bovine Muscle (1981)

CALKINS, C. R. ; DUTSON, T. R. ; SMITH, G. C. ; [weitere]

Oxford, UK : Blackwell Publishing Ltd

Journal of food science 46 (1981), S. 0

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ISSN: 1750-3841

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung

Notizen: Beef carcasses (n = 65) were selected to range widely in marbling (moderately abundan: to practically devoid) and maturity (A, n = 25; B, n = 19; C, n = 6; D, n = 8; E, n = 7). Number, percent, area and mean diameter of β-red (βR), α-white (αW) and α-red (αR) muscle fibers were determined. Warner-Bratzler shear force values and taste panel tenderness ratings were also obtained. αW muscle fiber parameters were negatively correlated (P 〈 0.05) to marbling and tenderness ratings while αR and βR parameters were positively correlated (P 〈 0.05) to these quality attributes. The ratio of αW fiber area to βR and/or αR fiber area was correlated (P 〈 0.05) with marbling and tenderness. Regression analyses indicate that muscle fiber type composition is more highly related to marbling (marb) than it is to shear force value (SFV) or tenderness rating (TR) although all relationships were significant (P 〈 0.10). The relationship of these quality indicators to fiber type is greater within A maturity [marb, coefficient of determination (C.D.) = 65.09; SFV, C.D. = 65.09; SFV, C.D. = 28.85; TR, C.D. = 62.94] than for the entire population (murb, C.D. = 49.16; SFV, C.D. = 18.71; TR, C.D. = 30.47). It appears that the oxidative capacity of a muscle is related to marbling and tenderness and that muscle fiber type composition could possibly be used as a predictor of marbling potential.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1365-2621.1981.tb15331.x

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7

Digitale Medien

Plasma corticosteroid dynamics in channel catfish, Ictalurus punctatus (Rafinesque), during and after oxygen depletion (1981)

Tomasso, J. R. ; Davis, K. B. ; Parker, N. C.

Oxford, UK : Blackwell Publishing Ltd

Journal of fish biology 18 (1981), S. 0

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ISSN: 1095-8649

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Biologie

Notizen: Plasma corticosteroid concentrations in channel catfish, Ictalurus punctatus, (normally 1.0 ± 0.3 μg/100 ml) increased significantly (to 5.9 ± 1.2μg/100 ml) in response to acute oxygen depletion and then returned to control levels within 30 min after the dissolved oxygen concentration was increased; however, a secondary increase in plasma corticosteroid levels was observed 6 h after exposure. Corticosteroid levels also increased in fish exposed to dissolved oxygen concentration of 〈0.2 mg/1 for three days. Methylene blue was not effective in preventing interrenal response to low dissolved oxygen. No diurnal plasma corticosteroid rhythm was observed in fish exposed to diurnal chemical rhythms of culture ponds.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1095-8649.1981.tb03793.x

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8

Digitale Medien

WATER SUPPLY AS A LIMITING FACTOR IN WESTERN ENERGY DEVELOPMENT (1981)

Davis, G. H. ; Kilpatrick, F. A.

Oxford, UK : Blackwell Publishing Ltd

Journal of the American Water Resources Association 17 (1981), S. 0

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ISSN: 1752-1688

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Architektur, Bauingenieurwesen, Vermessung , Geographie

Notizen: : This paper discusses the consumptive water needs of the various energy conversion processes including oil shale retorting, coal gasification and liquefaction, electric power generation, and slurry pipelines. Projected energy development water needs in the upper Colorado River and Upper Missouri River basins are compared with projected agricultural needs and water available. The comparative cost and values of water to energy and agricultural development are discussed to emphasize this as well as the political and social factors entering into the picture.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1752-1688.1981.tb02585.x

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9

Digitale Medien

Analysis of Propagation of Freezing and Thawing Fronts (1981)

TALMON, YESHATAHYU ; DAVIS, H.

Oxford, UK : Blackwell Publishing Ltd

Journal of food science 46 (1981), S. 0

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ISSN: 1750-3841

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung

Notizen: The modified isotherm migration method (MIMM) is used to calculate the temperature profiles and freezing (thawing) times for symmetrically cooled (heated) slabs with meat-like thermal properties. MIMM, which is reviewed briefly is not restricted to the usual idealizations such as zero surface resistance, uniform critical temperature distribution, and infinitely large sample. Dimensional analysis is used to identify the dimensionless groups controlling freezing and thawing front propogation in slabs, cylinders, and spheres having uniform thermal properties and constant freezing temperature. The MIMM results provide a basis for evaluating the qualitative origins and the quantitative extent of the success of Plank's (1913) old model. The freezing times predicted by the moving front model used here agree with those predicted by the empirical correlation found by Cleland and Earle for the Karlsruhe test substance.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1365-2621.1981.tb04202.x

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