Influence of technology on magnetic tape storage device characteristics

There are available today many data storage devices that serve the diverse application requirements of the consumer, professional entertainment, and computer data processing industries. Storage technologies include semiconductors, several varieties of optical disk, optical tape, magnetic disk, and many varieties of magnetic tape. In some cases, devices are developed with specific characteristics to meet specification requirements. In other cases, an existing storage device is modified and adapted to a different application. For magnetic tape storage devices, examples of the former case are 3480/3490 and QIC device types developed for the high end and low end segments of the data processing industry respectively, VHS, Beta, and 8 mm formats developed for consumer video applications, and D-1, D-2, D-3 formats developed for professional video applications. Examples of modified and adapted devices include 4 mm, 8 mm, 12.7 mm and 19 mm computer data storage devices derived from consumer and professional audio and video applications. With the conversion of the consumer and professional entertainment industries from analog to digital storage and signal processing, there have been increasing references to the 'convergence' of the computer data processing and entertainment industry technologies. There has yet to be seen, however, any evidence of convergence of data storage device types. There are several reasons for this. The diversity of application requirements results in varying degrees of importance for each of the tape storage characteristics

Glass transition and alpha-relaxation dynamics of thin films of labeled polystyrene

The glass transition temperature and relaxation dynamics of the segmental motions of thin films of polystyrene labeled with a dye, 4-[N-ethyl-N-(hydroxyethyl)]amino-4-nitraozobenzene (Disperse Red 1, DR1) are investigated using dielectric measurements. The dielectric relaxation strength of the DR1-labeled polystyrene is approximately 65 times larger than that of the unlabeled polystyrene above the glass transition, while there is almost no difference between them below the glass transition. The glass transition temperature of the DR1-labeled polystyrene can be determined as a crossover temperature at which the temperature coefficient of the electric capacitance changes from the value of the glassy state to that of the liquid state. The glass transition temperature of the DR1-labeled polystyrene decreases with decreasing film thickness in a reasonably similar manner to that of the unlabeled polystyrene thin films. The dielectric relaxation spectrum of the DR1-labeled polystyrene is also investigated. As thickness decreases, the $\alpha$-relaxation time becomes smaller and the distribution of the $\alpha$-relaxation times becomes broader. These results show that thin films of DR1-labeled polystyrene are a suitable system for investigating confinement effects of the glass transition dynamics using dielectric relaxation spectroscopy.Comment: 10 pages, 11 figures, 2 Table

Illumination in symbiotic binary stars: Non-LTE photoionization models. II. Wind case

We describe a non-LTE photoionization code to calculate the wind structure and emergent spectrum of a red giant wind illuminated by the hot component of a symbiotic binary system. We consider spherically symmetric winds with several different velocity and temperature laws and derive predicted line fluxes as a function of the red giant mass loss rate, \mdot. Our models generally match observations of the symbiotic stars EG And and AG Peg for \mdot about 10^{-8} \msunyr to 10^{-7} \msunyr. The optically thick cross- section of the red giant wind as viewed from the hot component is a crucial parameter in these models. Winds with cross-sections of 2--3 red giant radii reproduce the observed fluxes, because the wind density is then high, about 10^9 cm^{-3}. Our models favor winds with acceleration regions that either lie far from the red giant photosphere or extend for 2--3 red giant radii.Comment: 51 pages, LaTeX including three tables, requires 15 Encapsulated Postscript figures, to appear in Ap

Assessment of Need for Real-time Climate Data and Information in the Upper Midwest

published or submitted for publicationis peer reviewedOpe

Using Heat to Characterize Streambed Water Flux Variability in Four Stream Reaches

Estimates of streambed water fl ux are needed for the interpretation of streambed chemistry and reactions. Continuous temperature and head monitoring in stream reaches within four agricultural watersheds (Leary Weber Ditch, IN; Maple Creek, NE; DR2 Drain, WA; and Merced River, CA) allowed heat to be used as a tracer to study the temporal and spatial variability of fluxes through the streambed. Synoptic methods (seepage meter and differential discharge measurements) were compared with estimates obtained by using heat as a tracer. Water flux was estimated by modeling one-dimensional vertical flow of water and heat using the model VS2DH. Flux was influenced by physical heterogeneity of the stream channel and temporal variability in stream and ground-water levels. During most of the study period (April–December 2004), flux was upward through the streambeds. At the IN, NE, and CA sites, high-stage events resulted in rapid reversal of flow direction inducing short-term surface-water flow into the streambed. During late summer at the IN site, regional ground-water levels dropped, leading to surface-water loss to ground water that resulted in drying of the ditch. Synoptic measurements of flux generally supported the model flux estimates. Water flow through the streambed was roughly an order of magnitude larger in the humid basins (IN and NE) than in the arid basins (WA and CA). Downward flux, in response to sudden high streamflows, and seasonal variability in flux was most pronounced in the humid basins and in high conductivity zones in the streambed

Factors in Daily Physical Activity Related to Calcaneal Mineral Density in Men

To determine the factors in daily physical activity that influence the mineral density of the calcaneus, we recorded walking steps and the type and duration of exercise in 43 healthy 26-to 51-yr-old men. Areal (g/sq cm) calcaneal bone mineral density (CBMD) was measured by single energy x-ray densitometry. Subjects walked a mean (+/- SD) of 7902(+/-2534) steps per day or approximately 3.9(+/-1.2) miles daily. Eight subjects reported no exercise activities. The remaining 35 subjects spent 143(2-772) (median and range) min/wk exercising. Twenty-eight men engaged in exercise activities that generate single leg peak vertical ground reaction forces (GRF(sub z)) of 2 or more body weights (high loaders, HL), and 15 reported exercise or daily activities that typically generate GRF(sub z) less than 1.5 body weights (low loaders, LL). CBMD was 12% higher in HL than LL (0.668 +/- 0.074 g/sq cm vs 0.597 +/- 0.062 g/sq cm, P less than 0.004). In the HL group, CBMD correlated to reported minutes of high load exercise (r = 0.41, P less than 0.03). CBMD was not related to the number of daily walking steps (N = 43, r = 0.03, NS). The results of this study support the concept that the dominant factor in daily physical activity relating to bone mineral density is the participation in site specific high loading activities, i.e., for the calcaneus, high calcaneal loads

Flamingo Vol. III N 2

Anonymous. Cover. Picture. 0. Anonymous. Untitled. Picture. 4. Price, John M. Dada--Esthetic Nihilism. Prose. 5. G.C. Tolerance. Poem. 6. G.W.B. The Castaway. Poem. 6. G.W.B. Cinquains. Poem. 7. Holt, K. HORATI CARMINA, Liber I, ix. Prose. 7. W.A.V. Untitled. Poem. 7. A.E.R. Moods. Poem. 7. G.W.B. Some Say The Moon. Poem. 7. A.E.R. On Quoting The Night Has A Thousand Eyes . Poem. 7. Anonymous. Chapel Cherubs. Prose. 8. E.B. Untitled. Picture. 8. E.B. Untitled. Picture. 8. Anonymous. Untitled. Prose. 9. Anonymous. Untitled. Prose. 9. Anonymous. FLIP— MIGHT I ASK YOU FOR THIS DANCE? FLAP— PLEASE DO, I\u27VE BEEN DYING TO REFUSE YOU ALL EVENING. . Picture. 9. Anonymous. HUSBAND (SAVAGELY)— MARIA, WHERE\u27S MY CLOTHES? MARIA— GOOD HEAVENS, DEAR, I WONDER IF I USED THEM IN THE SALAD. Picture. 9. Anonymous. Our Log Table. Prose. 9. Anonymous. Approved Vocabulary For Fans. Prose. 9. Anonymous. Untitled. Prose. 9.; Anonymous. Untitled. Prose. 9. Anonymous. Untitled. Prose. 9. Anonymous. Untitled. Prose. 9. Anonymous. Only Too True! Prose. 10. F.T. GEORGE TOLD ME ALL THE SECRETS OF HIS PAST LAST NIGHT. REALLY! WHAT DID YOU THINK OF THEM? OH, I THOUGHT THEY WERE HORRIBLY DISAPPOINTING. Picture. 10. Anonymous. Untitled. Prose. 10. Anonymous. Untitled. Prose. 10. Anonymous. Untitled. Prose. 10. Howard, Lillis. The Engaged Homo. Poem. 10. Anonymous. Before and After. Poem. 11. Anonymous. Untitled. Poem. 11. Ubersax. AS OTHERS MIGHT SEE US—CLEVELAND HALL TO A CUBIST. Picture. 11. Anonymous. Untitled. Prose. 11. Anonymous. Untitled. Prose. 11. Anonymous. Untitled. Prose. 11. Anonymous. SECOND FROM THE RIGHT— WHAT\u27S THAT DESERTED OLD BUILDING OVER THERE? DITTO LEFT— MUST BE WHERE THEY USED TO MAKE HAIRPINS. Picture. 11. Anonymous. Untitled. Prose. 11. Anonymous. Untitled. Prose. 11. E.T.B. Broadway Bizarre. Prose. 12. E.B. Untitled. Picture. 13. E.B. The First One. Picture. 13. Anonymous. It\u27s done. Prose. 14. W.G.M. Mother. Prose. 15. Anonymous. Our Daily Mud. Prose. 15. G.C. Optimism. Poem. 15. Bridge. Denison Comics. Picture. 16. Anonymous. Our Asinetic Appreciation Corner. Prose. 18. Anonymous. STILL LIFE OF A NEAR-BEER AT THE TURNING POINT. Picture. 18. Rine, Russell. Stewed and Hashed. Poem. 18. Anonymous. Untitled. Poem. 18. Anonymous. Untitled. Poem. 19. Anonymous. Untitled. Prose. 19. Anonymous. Untitled. Prose. 19. Mercer, Hod. OUR OWN IDEA OF SOMETHING AESTHETIC. Picture. 19. Anonymous. Untitled. Prose. 19. Anonymous. Untitled. Prose. 19. Anonymous. Such Is Life. Poem. 19. Anonymous. Untitled. Prose. 19. Anonymous. Untitled. Prose. 19. Grayce. THE FLIGHT IS ON—THE FESTIVAL IS HERE. Picture. 20. W.G.K. Eutopia Regained. Prose. 20. Anonymous. Untitled. Prose. 20. Anonymous. Untitled. Prose. 20. Anonymous. Oh You Nine Weeks. Poem. 20. Anonymous. Untitled. Prose. 20. Anonymous. Untitled. Prose. 20. Anonymous. Untitled. Prose. 20. Anonymous. THAT MAUSOLEUM HAS BEEN CONDEMNED BY THE BUILDING INSPECTOR. WHAT\u27S WRONG WITH IT? IT HASN\u27T ANY FIRE ESCAPES. Picture. 20. Jester. Untitled. Prose. 24. Anonymous. Untitled. Prose. 24. Panther. Untitled. Prose. 24. Octopus. Untitled. Prose. 24. Mugwump. Untitled. Prose. 24. Reel, Virginia. Untitled. Prose. 24. Garber, Jock. Kows and Why Not. Prose. 25. Texas Scalper. Untitled. Prose. 25. Lord Jeff. Untitled. Prose. 28. Lampoon. Cut Rates. Prose. 28. Malteaser. Untitled. Prose. 28. Sun Dodger. Untitled. Prose. 28. Beanpot. Untitled. Prose. 28. Malteaser. Untitled. Prose. 28. Gargoyle. Putting It Fairly. Prose. 29. Malteaser. Untitled. Prose. 29. Gargoyle. Untitled. Prose. 29. Sun Dial. Untitled. Prose. 29. Gargoyle. Untitled. Prose. 30. Malteaser. Untitled. Prose. 30. Panther. Untitled. Prose. 30. Sun Dial. The Stuffed Kind. Prose. 30. Student Life. Untitled. Prose. 30. Malteaser. Heard in EC. Class. Prose. 30. Nashville Tennessean. Untitled. Prose. 30. Lemon Punch. Untitled. Prose. 31. Sun Dial. Untitled. Prose. 31. Gargoyle. Two is a Crowd. Prose. 31. Phoenix. Untitled. Prose. 31

On the Normalization of the Neutrino-Deuteron Cross Section

As is well-known, comparison of the solar neutrino fluxes measured in SuperKamiokande (SK) by $\nu + e^- \to \nu + e^-$ and in the Sudbury Neutrino Observatory (SNO) by $\nu_e + d \to e^- + p + p$ can provide a ``smoking gun'' signature for neutrino oscillations as the solution to the solar neutrino puzzle. This occurs because SK has some sensitivity to all active neutrino flavors whereas SNO can isolate electron neutrinos. This comparison depends crucially on the normalization and uncertainty of the theoretical charged-current neutrino-deuteron cross section. We address a number of effects which are significant enough to change the interpretation of the SK--SNO comparison.Comment: 4 pages, 1 figure, submitted to PR