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An efficient method for unfolding kinetic pressure driven VISAR data

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High Power Laser Science and Engineering 2015年第3期3卷 50-58页

作者： M.hess K.Peterson A.Harvey-Thompson Sandia National Laboratories

Velocity Interferometer System for Any Reflector(VISAR) [Barker and Hollenbach, J. Appl. Phys. 43, 4669(1972)]is a well-known diagnostic that is employed on many shock physics and pulsed-power experiments. With the VISAR diagnostic, the velocity on the surface of any metal flyer can be found. For most experiments employing VISAR, either a kinetic pressure [Grady, Mech. Mater. 29, 181(1998)] or a magnetic pressure [Lemke et al., Intl J. Impact Eng. 38,480(2011)] drives the motion of the flyer. Moreover, reliable prediction of the time-dependent pressure is often a critical component to understanding the physics of these experiments. Although VISAR can provide a precise measurement of a flyer's surface velocity, the real challenge of this diagnostic implementation is using this velocity to unfold the timedependent pressure. The purpose of this paper is to elucidate a new method for quickly and reliably unfolding VISAR data.

关键词： laser driven blast wave pulsed-power VISAR

A New Woman and Her Warlord： Li Dequan, Feng Yuxiang, and the Politics of Intimacy in Twentieth- Century China

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Frontiers of History in China 2016年第3期11卷 431-457页

作者： Kate Merkel-hess Departments of History and Asian Studies The Pennsylvania State University University Park PA16802 USA

This article proposes a new way of viewing Republican-era warlords. Through an examination of the life ofLi Dequan, the second wife of warlord Feng Yuxiang, it displaces Feng from his typical military and political context, scrutinizing instead the ways that Feng and Li interwove the private intimacies of love, marriage, and family life into their public and political lives. In the Republic, Feng and Li, like many prominent figures of the time, shared elements of their private lives with journalists and, through them, a broader reading public, posing for photographs with their children on their way to school and inviting reporters to family events. Feng and Li utilized this newfound intimacy between public and political leaders to cultivate public sympathy and support. By the early PRC, Li--following Feng＇s sudden 1948 death--was named the first Minister of Health of the People＇s Republic of China and her roles as wife and romantic object fell away. Instead, she focused on mothering the nation. By the late twentieth century, emphasis on the Li and Feng romance reappeared in writings about the couple, and while these narratives drew on the Republican-era stories, it was made to seem that Li＇s feminism rather than Feng＇s modernity had facilitated their true love. Though the warlords have often been seen as destructive, exploring Feng＇s and Li＇s lives demonstrates that factional militarists and their families contributed to a new political culture grounded in a gendered national narrative that merewrite family and nation.

关键词： warlords gender feminism marriage revolution emotion nationalism media

Breaking out from the neuroprotective logjam:combined treatment with remote ischemic conditioning and minocycline in the prehospital setting

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Neural Regeneration Research 2015年第4期10卷 537-539页

作者： Jung Mi Park David C.hess Departments of Neurology Georgia Regent’s University

The only two treatments effective for acute ischemic stroke are reperfusion therapies. Despite testing of hundreds of neuroprotective agents and treatments, tissue plasminogen activator （tPA）, approved by the Food and Drug Administration （FDA） in 1996, remains the only FDA-approved drug for the treatment of ischemic stroke. Recently,

关键词： Breaking out from the neuroprotective logjam RIC

Elevated plasma levels of N-terminal pro-brain natriuretic peptide in patients with chronic hepatitis C during interferon-based antiviral therapy

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World Journal of Gastroenterology 2006年第36期12卷 5875-5877页

作者： Jrg Bojunga Christoph Sarrazin Georg hess Stefan Zeuzem Internal Medicine Ⅱ Saarland University Hospital 66421 Homburg/Saar Germany Roche Diagnostics 68305 Mannheim Germany

AIM: To investigate plasma levels of N-terminal pro-brain natriuretic peptide (NT-proBNP), an established marker of cardiac function, in patients with chronic hepatitis C during interferon-based antiviral therapy. METHODS: Using a sandwich immunoassay, plasma levels of NT-proBNP were determined in 48 patients with chronic hepatitis C at baseline, wk 24 and 48 during antiviral therapy and at wk 72 during ***: Plasma NT-proBNP concentrations were significantly increased (P < 0.05) at wk 24, 48 and 72 compared to the baseline values. NT-proBNP concentrations at baseline and wk 24 were closely correlated (r = 0.8; P < 0.001). At wk 24, 7 (14.6%) patients had NT-proBNP concentrations above 200 ng/L compared to 1 (2%) patient at baseline (P = 0.059). Six of these 7 patients had been treated with high-dose IFN-α induction therapy. In multiple regression analysis, NT-proBNP was not related to other clinical parameters, biochemical parameters of liver disease or virus load and response to ***: Elevated levels of NT-proBNP during and after interferon-based antiviral therapy of chronic hepatitis C may indicate the presence of cardiac dysfunction, which may contribute to the clinical symptoms observed in patients during therapy. Plasma levels of NT-proBNP may be used as a diagnostic tool and for guiding therapy in patients during interferon-based antiviral therapy.

关键词： Hepatitis C N-terminal pro-brain natriuretic peptide Interferon Cardiomyopathy Treatment side effects

Lucio Fontana 1899-1968

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Lucio Fontana 1899-1968

Activation reduction following an eccentric contraction impairs torque steadiness in the isometric steady-state

作者： Barbara hess.

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Journal of Sport and Health Science 2018年第3期7卷 310-317页

作者： Nicole Mazara Adam J.hess Jackey Chen Geoffrey A.Power Department of Human Health and Nutritional Sciences College of Biological Sciences University of Guelph

Background:The isometric steady-state following active lengthening is associated with greater torque production and lower activation,as measured by electromyographic activity(EMG),in comparison with a purely isometric contraction(ISO)at the same joint *** phenomenon is termed residual force enhancement(RFE).While there has been a great deal of research investigating the basic mechanisms of RFE,little work has been performed to understand the everyday relevance of *** purpose of this study was to investigate whether neuromuscular control strategies differ between ISO and RFE by measuring torque steadiness of the human ankle plantar ***:Following ISO maximal voluntary contractions in 12 males(25±4 years),an active lengthening contraction was performed at 15°/s over a 30°ankle excursion,ending at the same joint angle as ISO(5°dorsiflexion;RFE).Surface EMG of the tibialis anterior and soleus muscles was recorded during all *** steadiness was determined as the standard deviation(SD)and coefficient of variation(CV)of the torque trace in the ISO and RFE condition during activation-matching(20%and 60%integrated EMG)and torque-matching(20%and 60%maximal voluntary contraction)***-tailed,paired t tests were used,within subjects,to determine the presence of RFE/activation reduction(AR)and whether there was a difference in torque steadiness between ISO and RFE ***:During the maximal and submaximal conditions,there was 5%-9%RFE with a 9%-11%AR(p0.05).There were no differences in SD and CV of the torque trace for the 20%and60%activation-matching or the 60%and maximal torque-matching trials in either the RFE or ISO condition(p>0.05).During the 20%torquematching trial,there were～37%higher values for SD and CV in the RFE as compared with the ISO condition(p<0.05).A significant moderate-to-strong negative relationship was identified between

关键词： Eccentric Force steadiness History dependence Residual force enhancement Tremor