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In-port-plug transmission line design of the ITER plasma position reflectometer

Plasma Science and Technology 2020年第6期22卷 15-20页

作者： J MARTÍNEZ-FERNÁNDEZ ÁCAPPA a simonetto T ESTRADA E DE LA LUNA E J BLANCO Laboratorio Nacional de Fusión.CIEMAT Avda Complutense 40.Madrid 28040Spain CNR-ISTP via Cozzi 5320125 MilanoItaly

This work describes the microwave design of the transmission line housed in the in-port-plug region of the ITER plasma position reflectometer(PPR).The design of the components of the inport-plug reflectometers(located in equatorial port-plug 10(EPP10) and in upper-port-plug 01(UPP01)) is *** a 3 D ray tracing code, the spatial position and optimum orientation angles of each set of emission and detection antennas were determined.A feasible path was then created from the obtained antenna positions and orientations to the primary vacuum *** tall waveguides were chosen to reduce ohmic *** to space constraints in the ITER crowded environment, bends in oversized waveguides were unavoidable, and thus mode conversion was *** keep mode conversion losses at bay, hyperbolic secant curvature bends had to be used whenever ***, E-plane bends in tall waveguides proved to be especially critical, making it necessary to employ other approaches when higher bending angles were *** conversion results were obtained by evaluating the mode coupling *** losses have also been computed and their results compared with commercial simulators, obtaining a perfect agreement.

关键词： reflectometry microwave technology ITER diagnostic

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Isolated hepatic non-obstructive sinusoidal dilatation, 20-year single center experience

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World Journal of Hepatology 2018年第5期10卷 417-424页

作者： Dharma Budi Sunjaya Guilherme Piovezani Ramos Manuel Bonfim Braga Neto Ryan Lennon Taofic Mounajjed Vijay Shah Patrick Sequeira Kamath Douglas Alano simonetto School of Graduate Medical Education Mayo Clinic Division of Biomedical Statistics and Informatics Mayo Clinic Laboratory Medicine and Pathology Mayo Clinic Gastroenterology and Hepatology Mayo Clinic

AIM To characterize isolated non-obstructive sinusoidal dilatation(SD) by identifying associated conditions, laboratory findings, and histological patterns. METHODS Retrospectively reviewed 491 patients with SD between 1995 and 2015. Patients with obstruction at the level of the small/large hepatic veins, portal veins, or right-sided heart failure were excluded along with history of cirrhosis, hepatic malignancy, liver transplant, or absence of electrocardiogram/cardiac echocardiogram. Liver histology was reviewed for extent of SD, fibrosis, red blood cell extravasation, nodular regenerative hyperplasia, hepaticpeliosis, and hepatocellular plate atrophy(HPA). RESULTS We identified 88 patients with non-obstructive SD. Inflammatory conditions(32%) were the most common cause. The most common pattern of liver abnormalities was cholestatic(76%). Majority(78%) had localized SD to Zone Ⅲ. Medication-related SD had higher proportion of portal hypertension(53%), ascites(58%), and median AST(113 U/L) and ALT(90 U/L) levels. Nineteen patients in our study died within one-year after diagnosis of SD, majority from complications related to underlying *** Significant proportion of SD and HPA exist without impaired hepatic venous outflow. Isolated SD on liver biopsy, in the absence of congestive hepatopathy, requires further evaluation and portal hypertension should be rule out.

关键词： Sinusoidal dilatation Sinusoidal obstruction syndrome Hepatic plate atrophy

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Albumin administration in patients with cirrhosis: Current role and novel perspectives

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World Journal of Gastroenterology 2022年第33期28卷 4773-4786页

作者： Angelo Zambam de Mattos Douglas Alano simonetto Carlos Terra Alberto Queiroz Farias Paulo Lisboa Bittencourt Tales Henrique Soares Pase Marlon Rubini Toazza Angelo Alves de Mattos Alliance of Brazilian Centers for Cirrhosis Care-the ABC Group Graduate Program in Medicine:Hepatology Federal University of Health Sciences of Porto AlegrePorto Alegre 90050-170Brazil Division of Gastroenterology and Hepatology Mayo ClinicRochesterMN 55902United States Department of Gastroenterology State University of Rio de JaneiroRio de Janeiro 20550-170Brazil Department of Gastroenterology University of São PauloSão Paulo 01246-903Brazil Gastroenterology and Hepatology Unit Hospital PortuguêsSalvador 40130-030Brazil Internal Medicine Unit Irmandade Santa Casa de Misericórdia de Porto AlegrePorto Alegre 90020-090Brazil Gastroenterology and Hepatology Unit Irmandade Santa Casa de Misericórdia de Porto AlegrePorto Alegre 90020-090Brazil 不详

Mortality in cirrhosis is mostly associated with the development of clinical decompensation,characterized by ascites,hepatic encephalopathy,variceal bleeding,or ***,it is important to prevent and manage such ***,the pathophysiology of decompensated cirrhosis was explained by the peripheral arterial vasodilation hypothesis,but it is currently understood that decompensation might also be driven by a systemic inflammatory state(the systemic inflammation hypothesis).Considering its oncotic and nononcotic properties,albumin has been thoroughly evaluated in the prevention and management of several of these decompensating *** are formal evidence-based recommendations from international medical societies proposing that albumin be administered in individuals with cirrhosis undergoing large-volume paracentesis,patients with spontaneous bacterial peritonitis,those with acute kidney injury(even before the etiological diagnosis),and those with hepatorenal ***,there are a few randomized controlled trials and meta-analyses suggesting a possible role for albumin infusion in patients with cirrhosis and ascites(long-term albumin administration),individuals with hepatic encephalopathy,and those with acute-on-chronic liver failure undergoing modest-volume *** studies are necessary to elucidate whether albumin administration also benefits patients with cirrhosis and other complications,such as individuals with extraperitoneal infections,those hospitalized with decompensated cirrhosis and hypoalbuminemia,and patients with hyponatremia.

关键词： Cirrhosis Albumin Paracentesis Spontaneous bacterial peritonitis Acute kidney injury Hepatorenal syndrome

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