scholarly journals Enhanced water uptake in the longitudinal direction by shiitake mycelium in shiitake cultivation logs: water content distribution in logs measured by magnetic resonance imaging

2021 ◽  
Author(s):  
Kuniyasu Ogawa ◽  
Takeshi Yashima
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Water Content ◽  
Water Uptake ◽  
Content Distribution ◽  
Longitudinal Direction ◽  
Resonance Imaging

Measurement of Water Content Distribution in Catalyst Coated Membrane at Water Permeation Condition by Magnetic Resonance Imaging

2010 ◽  
Author(s):  
Takahiro Suzuki ◽  
Yuichiro Tabuchi ◽  
Shohji Tsushima ◽  
Shuichiro Hirai ◽  
Koichiro Aotani ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Water Content ◽  
Content Distribution ◽  
Polymer Electrolyte Membrane ◽  
Water Flux ◽  
Dew Point ◽  
Resonance Imaging ◽  
Water Permeation ◽  
Coated Membrane

Through-plane water content distribution in a polymer electrolyte membrane (PEM) and water flux across the membrane were measured under different water permeation conditions using magnetic resonance imaging (MRI) and a dew point measurement system. We placed the PEM by itself or as a catalyst coated membrane (CCM) in an experimental cell, and we subjected them to several water permeation conditions that had different water activities across the membrane. We compared the water content distribution and water flux of samples, and the results showed the membranes exhibited different water content distribution between the PEM and the CCM. The differences suggest that the rate-determining process of the water transport phenomena across the membrane, which are diffusion through the membrane and interfacial transport across the membrane-gas interface, changed according to whether the membrane is used by itself or as a CCM.

Magnetic Resonance Imaging Spatial and Time Study of Lung Water Content in Newborn Lamb: Methods and Preliminary Results

2008 ◽  
Vol 43 (6) ◽  
pp. 470-480 ◽  
Author(s):  
Romain Viard ◽  
Pierre Tourneux ◽  
Laurent Storme ◽  
Julie-Marie Girard ◽  
Nacim Betrouni ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Water Content ◽  
Time Study ◽  
Resonance Imaging ◽  
Lung Water ◽  
Newborn Lamb ◽  
Preliminary Results ◽  
Lung Water Content

Changes in Soil Water Content Resulting from Ricinus Root Uptake Monitored by Magnetic Resonance Imaging

2008 ◽  
Vol 7 (3) ◽  
pp. 1010-1017 ◽  
Author(s):  
A. Pohlmeier ◽  
A. Oros-Peusquens ◽  
M. Javaux ◽  
M. I. Menzel ◽  
J. Vanderborght ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Root Uptake ◽  
Resonance Imaging

scholarly journals Increased fasting small‐bowel water content in untreated coeliac disease and scleroderma as assessed by magnetic resonance imaging

2019 ◽  
Vol 7 (10) ◽  
pp. 1353-1360 ◽  
Author(s):  
Ching Lam ◽  
David S Sanders ◽  
Peter Lanyon ◽  
Klara Garsed ◽  
Stephen Foley ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Small Bowel ◽  
Coeliac Disease ◽  
Water Content ◽  
Resonance Imaging

Estimation of myocardial water content using transverse relaxation time from dual spin-echo magnetic resonance imaging

1993 ◽  
Vol 11 (3) ◽  
pp. 375-383 ◽  
Author(s):  
Lawrence M. Boxt ◽  
Daphne Hsu ◽  
Jose Katz ◽  
Paul Detweiler ◽  
Stuart Mclaughlin ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Relaxation Time ◽  
Magnetic Resonance ◽  
Water Content ◽  
Spin Echo ◽  
Transverse Relaxation Time ◽  
Resonance Imaging ◽  
Transverse Relaxation

scholarly journals An Absolute Measurement of Brain Water Content Using Magnetic Resonance Imaging in Two Focal Cerebral Ischemic Rat Models

2000 ◽  
Vol 20 (1) ◽  
pp. 37-44 ◽  
Author(s):  
Weili Lin ◽  
Ramesh Venkatesan ◽  
Kilichan Gurleyik ◽  
Yong Y. He ◽  
William J. Powers ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Water Content ◽  
Spin Density ◽  
Absolute Measurement ◽  
Brain Water Content ◽  
Resonance Imaging ◽  
Regional Brain ◽  
Brain Water

Magnetic resonance imaging (MRI) was utilized to obtain absolute estimates of regional brain water content (W), and results were compared with those obtained with conventional wet/dry measurements. In total, 31 male Long-Evans rats were studied and divided into two groups based on the surgical procedures used to induce cerebral focal ischemia: suture (n = 18) and three-vessel ligation (TVL; n = 13) groups. Both relative spin density and T1 were extracted from the acquired MR images. After correcting for radiofrequency field inhomogeneities, T2* signal decay, and temperature effects, in vivo regional brain water content, in absolute terms, was obtained by normalizing the measured relative brain spin density of animals to that of a water phantom. A highly linear relationship between MR-estimated brain water content based on the normalized spin density and wet/dry measurements was obtained with slopes of 0.989 and 0.986 for the suture ( r = 0.79) and TVL ( r = 0.83) groups, respectively. Except for the normal subcortex of the TVL group ( P < 0.02) and the normal hemisphere of the suture group ( P < 0.003), no significant differences were observed between MR-estimated and wet/dry measurements of brain water content. In addition, a highly linear relationship between MR-measured R1 (= 1/T1) and 1/W of wet/dry measurements was obtained. However, slopes of the linear regression lines in the two groups were significantly different ( P < 0.02), indicating that different R1 values were associated with the same water content depending on the model. These results show that an absolute measurement of in vivo regional brain water content can be obtained with MRI and potentially serves as a noninvasive means to monitor different therapeutic interventions for the management of brain edema subsequent to stroke and head trauma.

Measurement of Lung Water Content and Pleural Pressure Gradient with Magnetic Resonance Imaging

1995 ◽  
Vol 10 (1) ◽  
pp. 73-81 ◽  
Author(s):  
John R. Mayo ◽  
Alex L. MacKay ◽  
Ken P. Whittall ◽  
Elisabeth M. Baile ◽  
Peter D. Paré
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Pressure Gradient ◽  
Water Content ◽  
Pleural Pressure ◽  
Resonance Imaging ◽  
Lung Water ◽  
Lung Water Content
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