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Combining Hyperpolarized Xe MR Imaging and Spectroscopy to Non-Invasively Estimate Pulmonary Vascular Resistance.
J Appl Physiol (1985)
January 2025
Medical Physics Graduate Program, Duke University, Durham, North Carolina, United States.
Hyperpolarized Xe MRI/MRS enables quantitative mapping of function in lung airspaces, membrane tissue, and red blood cells (RBCs) within the pulmonary capillaries. The RBC signal also exhibits cardiogenic oscillations that are reduced in pre-capillary pulmonary hypertension (PH). This effect is obscured in patients with concomitant defects in transfer from airspaces to RBCs, which increase RBC oscillation amplitudes.
View Article and Find Full Text PDFSolidified lake sediment with industrial waste and construction waste used as barrier cover material: mechanical strength, water resistance performance, and microscopic analysis.
Environ Technol
January 2025
School of Civil Engineering and Architecture, Wuhan Polytechnic University, Wuhan, People's Republic of China.
This study introduces a novel landfill cover material, employing lake sediment as a substrate, stabilised with fly ash, slag, desulfurisation gypsum and construction waste. The mechanical properties, including shear strength parameters, unconfined compressive strength, hydraulic conductivity, volumetric shrinkage, and water content, of the solidified sludge were evaluated. The microscopic mechanism of the solidified sludge were investigated through XRD, FTIR, and SEM-EDS techniques.
View Article and Find Full Text PDFBioinspired Superwettability Surface Strategies for Condensation Heat Transfer.
ACS Nano
January 2025
Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, P. R. China.
Along with the development of miniaturization, integration, and high power of electronic chips in the 5G and artificial intelligence era and their urgent need for technologies enabled to solve high heat flux dissipation in limited space, investigating bioinspired extreme superwettability surfaces with high-efficiency condensation heat transfer (CHT) performance has attracted great interest in academic and industrial communities. Compared with filmwise condensation of flat hydrophilic surfaces featured with continuous liquid films, dropwise condensation of flat hydrophobic surfaces is a more efficient type of energy transport way. However, discrete condensate drops can only shed off the hydrophobic flat surfaces under gravity until their sizes reach the capillary length of liquid, e.
View Article and Find Full Text PDFModeling Geobacillus stearothermophilus spores inactivation in plant-based drinks to design UHT processing.
Food Res Int
February 2025
Oniris VetAgroBio, INRAE, SECALIM, Nantes, France. Electronic address:
This study provides predictive models for G. stearothermophilus spores inactivation in four plant-based drinks, half-skimmed bovine milk and Brain Heart Infusion (BHI) broth and while also evaluating of matrix effect on inactivation. Heat inactivation was performed using the capillary tube method within the temperature range 115-127 °C.
View Article and Find Full Text PDFThe microcirculation : master in normal pregnancy, puppet in preeclampsia.
Am J Obstet Gynecol
January 2025
Hasselt University, Faculty of Medicine and Life Sciences, Agoralaan, 3590 Diepenbeek, Belgium; Department of Obstetrics and Gynaecology, ZOL Genk, campus St. Jan, Schiepse Bos 6, 3600 Genk, Belgium.
Objective: To investigate the association between functional parameters of the microcirculation and the systemic cardiovascular system in a population of pregnant women at risk for gestational hypertension disorders.
Study Design: For this observational study, women at high cardiovascular risk according to maternal anthropometrics, obstetric and medical history, were recruited at random gestational age depending on time of referral to the outpatient clinic for high risk prenatal care at Ziekenhuis Oost Limburg, Genk Belgium. After birth, data of maternal and neonatal outcome were obtained from the hospital records: only women with normal pregnancy (n = 142) and with preeclampsia (n = 34) were included in this analysis.
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