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| 1 | A sensorless and simple controller for VSC based HVDC systems显示文摘Voltage source converter high-voltage direct current (VSC-HVDC) is a new po0wer transmission technology pref- erable in small or medium power transmission. In this paper we discuss a new control system based on space vector modulation (SVM) without any voltage line sensors. Using direct power control (DPC) SVM and a new double synchronous reference frame phase-locked loop (DSRF-PLL) approach, the control system is resistant to the majority of line voltage disturbances. Also, the system response has accelerated by using a feed forward power decoupled loop. The operation of this control strategy was verified in a SIMULINK/MATLAB simulation environment. To validate this control system, a 5 kV·A prototype system was constructed. Compared to the original controllers, the current total harmonic distortion (THD), the active and reactive deviations and the DC voltage overshoot were lowered by 2.5%, 6.2% and 8%, respectively. The rectifier power factor in the worst condition was 0.93 and the DC voltage settling time was 0.2 s. | E. ABIRI A. RAHMATI A. ABRISHAMIFAR | 2009 | Journal of Zhejiang University-Science A(Applied Physics & Engineering)2009，10，12： | 4 |
| 2 | Assessing cultural competency skills in gastroenterology fellowship training显示文摘AIM:To assess and teach cultural competency skills at the fellowship training level through the use of objective structured clinical examinations(OSCEs).METHODS:We revised four scenarios to infuse a specific focus on cross-cultural care,and to render them appropriate for gastroenterology fellows.Three are discussed here:(1)Poor Health Literacy;(2)Disclosing/Apologizing for a Complication to a Patient Who Mistrusts the Healthcare System;and(3)Breaking Bad News to a Fatalistic Patient.A fourth case emphasizing shared decision-making will be described elsewhere.Four stations were completed by fellows and observed live by four faculty members,and the fellows’performance was assessed.RESULTS:Eleven fellows from four programs participated in the four OSCE.In the'Poor Health Literacy'case,18%(2/11)of participants recognized that the standardized patient(SP)had below-basic health literacy.None successfully evaluated the SP’s reading skills in a culturally-sensitive manner.In'Disclosing/Apologizing for a Complication',4/11(36%)personally apologized for the complication.1/11 recognized the SP’s mistrust of the medical system.With'Breaking Bad News',27%(3/11)explored the patient’s values to identify her fatalistic beliefs.CONCLUSION:OSCEs can be used to assess deficiencies in culturally-competent care at the fellowship level.OSCEs also afford fellowships the opportunity to inform future training curricula. | Sophie Balzora Benjamin Abiri Xiao-Jing Wang James Mc Keever Michael Poles Sondra Zabar Colleen Gillespie Elizabeth Weinshel | 2015 | World Journal of Gastroenterology2015，21，6： | 2 |
| 3 | An analytical approach to photonic reservoir computing-a network of SOA's-for noisy speech recognition显示文摘 | M R Salehi E Abiri L Dehyadegari | 2013 | Opt Commun2013，306，： | 1 |
| 4 | Bandwidth Enhancement of Printed E-shaped Slot Antennas Fed by CPW andMicrostrip Line显示文摘 | DASTRANJ A ABIRI H | 2010 | IEEE Transactions on Antennas and Propagation2010，58，4： | 1 |
| 5 | Anesthesiologists at work:an increase in pro-inflammatory and Th2 cytokine production,and alterations in proliferative immune responses显示文摘 | Beilin B Greenfeld K Abiri N | 2006 | Acta Anaesthesiol Scand2006，50，10： | 1 |
| 6 | Bandwidth enhancement of printed e-shaped slot antennas fed by CPW and microstrip line显示文摘 | DASTRANJ A ABIRI H | 2010 | IEEE Transactions on Antennas and Propagation2010，58，4： | 1 |
| 7 | Modeling of surface hairline-crack detection in metals under coatings using an open-ended rectangular waveguide显示文摘 | CHRISTIAN H ABIRI H STOYAN I | 1997 | IEEE Transactions on Microwave Theory and Techniques1997，45，11： | 1 |
| 8 | Modeling of surface hairling-crack detection in metals under coatings using open-ended rectangular waveguides显示文摘 | Huber C Abiri H | 1997 | IEEE Transactions on Microwave Theory and Technique1997，45，11： | 1 |
| 9 | Bandwidth enhancement of printed E-shaped slot antennas fed by CPW and microstrip line显示文摘 | DASTRANJ A ABIRI H | 2010 | IEEE Antennas and Propagation2010，58，4： | 1 |
| 10 | Blood Transfusion Promotes Cancer Progression: A Critical Role for Aged Erythrocytes显示文摘 | Shir Atzil Michal Arad Ariella Glasner Noa Abiri Roi Avraham Keren Greenfeld Ella Rosenne Benzion Beilin Shamgar Ben-Eliyahu | 2008 | Anesthesiology2008，，6： | 1 |
| 11 | Asymmetric hydroformylation using taddol-based chiral phosphine-phosphite ligands显示文摘 | ROBERT T ABIRI Z WASSENAAR J | 2009 | Organometallics2009，29，2： | 1 |
| 12 | Optimized midterm preventive maintenance outage scheduling of thermal generating units显示文摘 | ABIRI JAHROMI A FOTUHI-FIRUZABAD M PARVANIA M | 2012 | IEEE Trans on Power Systems2012，27，3： | 1 |
| 13 | Ultra-thin broadband solar absorber based on stadium-shaped silicon nanowire arrays显示文摘This paper investigates how the dimensions and arrangements of stadium silicon nanowires(NWs)affect their absorption properties.Compared to other NWs,the structure proposed here has a simple geometry,while its absorption rate is compa-rable to that of very complex structures.It is shown that changing the cross-section of NW from circular(or rectangular)to a stadium shape leads to change in the position and the number of absorption modes of the NW.In a special case,these modes result in the maximum absorption inside NWs.Another method used in this paper to attain broadband absorption is utiliza-tion of multiple NWs which have different geometries.However,the maximum enhancement is achieved using non-close packed NW.These structures can support more cavity modes,while NW scattering leads to broadening of the absorption spectra.All the structures are optimized using particle swarm optimizations.Using these optimized structures,it is viable to enhance the absorption by solar cells without introducing more absorbent materials. | Seyedeh Leila Mortazavifar Mohammad Reza Salehi Mojtaba Shahraki Ebrahim Abiri | 2022 | Frontiers of Optoelectronics2022，15，1： | 0 |
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