STUDY ON THE INFLUENCE OF HYDRAULIC BULGING RESTRAINT INTENSITY ON MICROSAMPLE OF MAIN PIPELINE MATERIAL by WANG ChunHui, AN YingHui

“…Three kinds of micro-sample thicknesses(0.4 mm,0.5 mm and 0.6 mm)and three kinds of chamfer radii(0.5 mm,0.8 mm and 1.0 mm)of the original main pipe material were taken as the research objects to analyze the influence of restraint intensity in hydraulic bulging test,and to build a correlation model of yield strength,tensile strength and hydraulic bulging elongation.The fitting error of yield strength and tensile strength and the dispersion of hydraulic bulging elongation were studied.The results show that with the gradual increase of microspecimen thickness,the peak load increases obviously,while the peak displacement generally decreases,but the overall curve trend changes little.With the gradual decrease of the microsample chamfer radius,the peak displacement decreases obviously.The test stability is best under the test conditions of microsample thickness 0.5 mm and chamfer radius 1.0 mm.…”
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The impact of the Affordable Care Act on health insurance coverage in the Gulf Coast and the Rest of the United States by rural and urban areas by Hosik Min, Kenneth Hudson

“…Methods: Data from the 2009 and 2015 American Community survey micro-sample was used to examine the effects of ACA policy on health insurance coverage in the Gulf Coast states and the rest of the nation. …”

From Flanders to Portugal: A Portuguese Painter in Pursuit of Prestigious Flemish Painting—Materials and Techniques Compared Through an Analytical Approach by Vanessa Antunes, António Candeias, José Mirão, Sara Valadas, Ana Cardoso, Maria José Francisco, Alexandra Lauw, Marta Manso, Maria Luísa Carvalho

“…Non-invasive, in situ methods—including energy dispersive X-ray fluorescence (XRF), macro-photography (MP), infrared reflectography (IRR), and dendrochronology—were used to examine each painting’s wooden support, ground layer, underdrawing, and pigment stratigraphy. Select micro-sampling analyses—micro-Fourier-transform infrared spectroscopy (μ-FTIR), scanning electron microscopy with energy dispersive spectroscopy (SEM-EDS), and micro-Raman spectroscopy (µ-Raman)—provided complementary data on binder and pigment composition. …”
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Experimental and simulation study on micro damage of HTPB propellant under multi angle tensile shear loading by Wang Jiaxiang, Qiang Hongfu, Pei Shudi, Li Shiqi

“…In order to investigate the in-situ damage evolution mechanism of hydroxyl terminated polybutadiene (HTPB) propellant under tensile shear conditions, computer tomography (CT) technology was used to scan and reconstruct micro samples of HTPB propellant loaded at different angles. …”
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Growing up in Ancient Sardinia: Infant-toddler dietary changes revealed by the novel use of hydrogen isotopes (δ2H). by Saskia E Ryan, Linda M Reynard, Elisa Pompianu, Peter van Dommelen, Clizia Murgia, M Eulàlia Subirà, Noreen Tuross

“…Here, we demonstrate how the novel use hydrogen isotope (δ2H) values of sequentially micro-sampled dentin collagen, measured from individuals excavated from a Punic cemetery, in Sardinia, Italy, can serve as a proxy for weaning food type and duration in ancient childhood diet. …”
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