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Full-Text Articles in Physical Sciences and Mathematics
Second Leray Spectral Sequence Of Relative Hypercohomology, Saul Lubkin, Goro C. Kato
Second Leray Spectral Sequence Of Relative Hypercohomology, Saul Lubkin, Goro C. Kato
Mathematics
A second Leray spectral sequence of relative hypercohomology is constructed. (This is skew in generality to an earlier one constructed by S. Lubkin [(1968) Ann. Math. 87, 105-255].) The Mayer-Vietoris sequence of relative hypercohomology [Lubkin, S. (1968) Ann. Math. 87, 105-255] is also generalized.
Magnetic Properties Of Linear Chain Systems: Metamagnetism Of Single Crystal Co(Pyridine)2Cl2, S. Foner, Richard B. Frankel, W. M. Reiff, H. Wong, Gary J. Long
Magnetic Properties Of Linear Chain Systems: Metamagnetism Of Single Crystal Co(Pyridine)2Cl2, S. Foner, Richard B. Frankel, W. M. Reiff, H. Wong, Gary J. Long
Physics
The metamagnetic behavior of the low temperature properties of single crystal Co(pyridine)2Cl2 is discussed. At 1.25 K oriented single crystals exhibit a two‐step metamagnetic transition at applied fields ∼0.8 and 1.6 kG along the b‐axis, a single transition at ∼0.7 kG for applied fields along the a∗ axis, and a single transition at ∼4.2 kG for an applied field along the c axis. Just above the transition fields a moment of 2μB/Co atom is measured for B0 parallel to the a∗ axis or b axis, and 0.4μB/Co atom is …
Mössbauer Spectroscopy Of Iron Deposits In Thalassemic Heart Tissue, G. C. Papaefthymiou, K. S. Kaufman, Richard B. Frankel, A. Rosenthal
Mössbauer Spectroscopy Of Iron Deposits In Thalassemic Heart Tissue, G. C. Papaefthymiou, K. S. Kaufman, Richard B. Frankel, A. Rosenthal
Physics
No abstract provided.
Critical Evaluation Of The Pulsed-Current Resistance Meter For Detection Of Decay In Wood, Douglas D. Piirto, W. Wayne Wilcox
Critical Evaluation Of The Pulsed-Current Resistance Meter For Detection Of Decay In Wood, Douglas D. Piirto, W. Wayne Wilcox
Natural Resources Management and Environmental Sciences
An evaluation of a pulsed-current resistance meter ("Shigometer®", Model No. 7950) for facilitating detection of decay was performed on wood blocks of giant sequoia heartwood and of white fir sapwood. As decay progressed over a 12-week incubation period, a trend of lower meter readings was obtained, confirming reported field measurements of other workers. Variability in meter readings in situations where the range in resistance readings between sound and decayed wood is narrow (e.g., giant sequoia heartwood) and apparent inability of the meter to make readings necessary to diagnose decay at MCs common to wood in service without ground or water …