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| 1 | Optical coherence tomography and Doppler optical coherence tomography in the gastrointestinal tract显示文摘Optical coherence tomography(OCT) is a noninvasive,high-resolution,high-potential imaging method that has recently been introduced into medical investigations.A growing number of studies have used this technique in the field of gastroenterology in order to assist classical analyses.Lately,3D-imaging and Doppler capabilities have been developed in different configurations,which make this type of investigation more attractive.This paper reviews the principles and characteristics of OCT and Doppler-OCT in connection with analyses of the detection of normal and pathological structures,and with the possibility to investigate angiogenesis in the gastrointestinal tract. | Eugen Osiac Adrian Sǎftoiu Dan Ionut Gheonea Ion Mandrila Radu Angelescu | 2011 | World Journal of Gastroenterology2011，17，1： | 8 |
| 2 | Diagnostic challenges in non-cirrhotic portal hypertension-porto sinusoidal vascular disease显示文摘Non-cirrhotic portal hypertension consists of a group of diseases characterized by signs and complications of portal hypertension,which differ from cirrhosis through histological alterations,hemodynamic characterization and,clinical outcome.Because of the similarities in clinical presentation and imaging signs,frequently these patients,and particularly those with porto-sinusoidal vascular disease(PSVD),are misdiagnosed as having liver cirrhosis and thus raising difficulties in their diagnosis.The most challenging differentiation to be considered is between PSVD and cirrhosis and,although not pathognomonic,liver biopsy is still the standard of diagnosis.Although they still require extended validation before being broadly used,new non-invasive methods for the diagnosis of porto-sinusoidal vascular disease,like transient elastography,contrast-enhanced ultrasound or metabolomic profiling,have shown promising results.Another issue is the differentiation between PSVD and chronic extrahepatic portal vein obstruction,especially now when it is known that 40%of patients suffering from PSVD develop portal vein thrombosis.In this particular case,once the portal vein thrombosis occurred,the diagnosis of PSVD is impossible according to the current guidelines.Moreover,so far,the differentiation between PSVD and sinusoidal obstruction syndrome has not been clear so far in particular circumstances.In this review we highlighted the diagnostic challenges regarding the PSVD,as well as the current techniques used in the evaluation of these patients. | Oana Nicoara-Farcau Ioana Rusu Horia Stefanescu Marcel Tanțau Radu Ion Badea Bogdan Procopet | 2020 | World Journal of Gastroenterology2020，26，22： | 4 |
| 3 | Frequency and voltage dependence of glow and pseudo glow discharges in Helium under atmospheric pressure显示文摘 | Ion Radu Ray Bartnikas Michael R Wertheimer | 2003 | IEEE Transactions on Plasma Science2003，31，6： | 1 |
| 4 | Frequency and voltage dependence of glow and pseudoglow discharges in helium under atmospheric pressure显示文摘 | Ion Radu Ray Bartnikas Michael R Wertheimer | 2003 | IEEE Transactions on Plasma Science2003，31，6： | 1 |
| 5 | Diagnostics of dielectric barrier discharges in noble gases: atmospheric pressure glow and pseudoglow discharges and spatio-temporal patterns 显示文摘 | Ion Radu Member Ray Barmikas | 2003 | IEEE Transactions on Plasma Science2003，3，31： | 1 |
| 6 | Extracting Multilingual Lexicons from Parallel Corpora显示文摘 | Tufis Dan Ana Maria Barbu & Radu Ion | 2004 | Computers and the Humanities2004，38，2： | 1 |
| 7 | Frequency and voltage dependence of glow and pseudoglow discharges in helium under atmospheric pressure显示文摘 | Radu Ion Bartnikas Ray Wertheimer Michael R | 2003 | IEEE Transactions on Plasma Science2003，31，6： | 1 |
| 8 | Wertheimer diagnostics of dielectric barrier discharges in noble gases:atmospheric pressure glow and pseudoglow discharges and spatio-temporal patterns显示文摘 | Ion Radu Ray Bartnikas Grzegorz Czeremuszkin | 2003 | IEEE Trans on Plasma Science2003，31，3： | 1 |
| 9 | Frequency and voltage dependence of glow and pseudo glow discharges in helium under atmospheric pressure显示文摘 | Radu Ion Bartnikas Ray | 2003 | IEEE Trans on Plasma Sci2003，31，6： | 1 |
| 10 | Thermo-oxidative behaviour of halobutyl and butyl elastomers显示文摘 | Silviu Jipa Maria Giurginca Tanta Setnescu Radu Setnescu Gheorghe Ivan Ion Mihalcea | 1996 | Polymer Degradation and Stability1996，，1： | 1 |
| 11 | New Linkage with Linear Actuator for Tracking PV Systems with Large Angular Stroke显示文摘This paper focuses on the development of an optimized photovoltaic tracking system involving low-cost, relative simple mechanisms, with linear actuators able to insure strokes comparable with those resulted when using gear rotary actuators. Starting with a rhombus linkage, with a linear actuator on the diagonal used for the elevation motion till 90°, a new performance solution is generated. This new linkage allows large angular strokes by using an asymmetric rhombus and an eccentrically positioned linear actuator. The paper can be divided in three main parts. Firstly the kinematical modeling of the new linkage is addressed, which permits the establishing of the linkage dimensions according to two adjustable parameters (k2, k5). Using the resulted correlations, in the second part the linkage synthesis algorithm is developed; the steps followed in this algorithm are presented in a numerical application considering a tracked PV platform, where the azimuthal vertical movement is obtained with the new proposed rhomboidal linkage. In the last part of the paper an analysis is done with the aim of determining the PV platform tracking efficiency (which represents the ratio between the received and the available beam solar energy) using the new linkage, in the meteorological conditions of Brasov, Romania implementation site. | VISA Ion DIACONESCU Dorin SAULESCU Radu VATASESCU Monica BURDUHOS Bogdan | 2011 | Chinese Journal of Mechanical Engineering2011，24，5： | 0 |
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