On the Magnetic Transformation and the Domain Structure of Magnetite

Blackman, M.; Haigh, G.; Lisgarten, N. D.

doi:10.1088/0370-1328/81/2/306

Cited by 12 publications

(10 citation statements)

References 12 publications

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“…There are other infrared absorptions that may also be connected with solid CO., in the atmosphere-solid CO., ab-2346 cm-' was observed by Mariner 6 …”

Section: C)2 (5)mentioning

confidence: 82%

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Mechanochemical Turbine: A New Power Cycle

Sussman

Katchalsky

1970

Science

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A basic thermodynamic cycle for the production of mechanical power from materials that may be made to contract forcibly and reversibly is described. The cycle differs from existing mechanical power cycles which generally employ expanding fluid as working substances. A "contraction turbine" operating on this cycle has been devised, which has collagen fiber as its working substance and salt solution as fuel and produces mechanical work directly from chemical free energy. Direct conversion of chemical to mechanical energy is routinely effected in muscle but not in usual man-made engines.

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“…There are other infrared absorptions that may also be connected with solid CO., in the atmosphere-solid CO., ab-2346 cm-' was observed by Mariner 6 …”

Section: C)2 (5)mentioning

confidence: 82%

“…For example. for a tenstage turbine T,ITr = 0.9 (6) Since each complete turn of the fibelr helix encompasses two contraction SCIENCE. VOL.…”

Section: C)2 (5)mentioning

confidence: 99%

Mechanochemical Turbine: A New Power Cycle

Sussman

Katchalsky

1970

Science

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“…At the annealing temperature of 180 K, a transition of the ice structure from cubic to hexagonal is expected. 23,24,31,32,35 Many groups have shown that an ice sample obtained by vapor condensation that is annealed to a temperature exceeding 200 K undergoes changes in its internal surface area. They suggested that this reduction of the internal surface was caused by closure of pores upon annealing and sintering.…”

Section: Discussionmentioning

confidence: 99%

Real-Time Kinetic Measurements of the Condensation and Evaporation of D₂O Molecules on Ice at 140 K < T < 220 K

1998

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The kinetics of condensation of D 2 18 O water vapor on D 2 16 O ice was studied in the temperature range 140-220 K. The measurements have been performed in real time using the pulsed valve technique in a lowpressure flow reactor. Ice samples were prepared by several different methods. The uptake coefficient γ was observed to decrease with increasing surface temperature, and varied from γ ) 0.06 to 0.8. A significant dependence of γ on the method of preparation of the ice has been found. At 180 K, γ ) 0.13 for singlecrystal ice, 0.18 for ice condensed from the vapor phase, and approximately 0.25 for bulk ice obtained from freezing liquid D 2 16 O. The uptake coefficient attained a value of γ ) 0.8 at 140 K for cubic ice prepared by vapor condensation at 140 K. The activation energy for evaporation of D 2 O at low temperatures (140-190 K) has been measured as 12.2 kcal/mol, whereas it decreases to 8.3 kcal/mol at higher temperatures (190-220 K). The rate of evaporation at 200 K corresponds to the loss of approximately 70 ( 10 formal monolayers per second. The experimental results suggest the formation of loosely bound water adsorbed to the surface of ice whose bond energy is estimated to be 4.0 ( 0.4 kcal/mol, independent of the type of ice.

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“…The broad absorption between about 125 and 180 nm is believed to be mainly due to water vapor contained in the argon gas, which has not been circulated through the rare gas purifier. The temperature dependent absorption of solid water in the VUV had been studied in [26,27].…”

Section: Absorption In Unpurified Liquid Argonmentioning

confidence: 99%

Attenuation of vacuum ultraviolet light in liquid argon

et al. 2012

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The transmission of liquid argon has been measured, wavelength resolved, for a wavelength interval from 118 to 250 nm. The wavelength dependent attenuation length is presented for pure argon. It is shown that no universal wavelength independent attenuation length can be assigned to liquid argon for its own fluorescence light due to the interplay between the wavelength dependent emission and absorption. A decreasing transmission is observed below 130 nm in both chemically cleaned and distilled liquid argon and assigned to absorption by the analogue of the first argon excimer continuum. For not perfectly cleaned argon a strong influence of impurities on the transmission is observed. Two strong absorption bands at 126.5 and 141.0 nm with approximately 2 and 4 nm width, respectively, are assigned to traces of xenon in argon. A broad absorption region below 180 nm is found for unpurified argon and tentatively attributed to the presence of water in the argon sample.

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On the Magnetic Transformation and the Domain Structure of Magnetite

Cited by 12 publications

References 12 publications

Mechanochemical Turbine: A New Power Cycle

Mechanochemical Turbine: A New Power Cycle

Real-Time Kinetic Measurements of the Condensation and Evaporation of D₂O Molecules on Ice at 140 K < T < 220 K

Attenuation of vacuum ultraviolet light in liquid argon

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On the Magnetic Transformation and the Domain Structure of Magnetite

Cited by 12 publications

References 12 publications

Mechanochemical Turbine: A New Power Cycle

Mechanochemical Turbine: A New Power Cycle

Real-Time Kinetic Measurements of the Condensation and Evaporation of D2O Molecules on Ice at 140 K < T < 220 K

Attenuation of vacuum ultraviolet light in liquid argon

Contact Info

Product

Resources

About

Real-Time Kinetic Measurements of the Condensation and Evaporation of D₂O Molecules on Ice at 140 K < T < 220 K