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| 2. |
- Calais, JL, et al.
(författare)
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Finite and infinite Born-von Karman regions
- 1997
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Ingår i: INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY. - 0020-7608. ; 63:1, s. 223-227
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- An attempt is made to present the connection between periodic boundary conditions and discrete wave vectors in a systematic fashion, with the continuous wavevectors as an extreme special case. (C) 1997 John Wiley & Sons, Inc.
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| 3. |
- Kapur, Rick, et al.
(författare)
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T regulatory cells and dendritic cells protect against transfusion-related acute lung injury via IL-10
- 2017
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Ingår i: Blood. - : American Society of Hematology. - 1528-0020 .- 0006-4971. ; 129:18, s. 2557-2569
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Tidskriftsartikel (refereegranskat)abstract
- Transfusion-related acute lung injury (TRALI) is the leading cause of transfusion-related fatalities and is characterized by acute respiratory distress following blood transfusion. Donor antibodies are frequently involved; however, the pathogenesis and protective mechanisms in the recipient are poorly understood, and specific therapies are lacking. Using newly developed murine TRALI models based on injection of anti-major histocompatibility complex class I antibodies, we found CD4+CD25+FoxP3+ T regulatory cells (Tregs) and CD11c+ dendritic cells (DCs) to be critical effectors that protect against TRALI. Treg or DC depletion in vivo resulted in aggravated antibody-mediated acute lung injury within 90 minutes with 60% mortality upon DC depletion. In addition, resistance to antibody-mediated TRALI was associated with increased interleukin-10 (IL-10) levels, and IL-10 levels were found to be decreased in mice suffering from TRALI. Importantly, IL-10 injection completely prevented and rescued the development of TRALI in mice and may prove to be a promising new therapeutic approach for alleviating lung injury in this serious complication of transfusion.
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| 4. |
- Weyrich, K., et al.
(författare)
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Mitigating system's voltage instability through wide-area early warning signals and real-time HVDC control
- 2012
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Ingår i: 2012 IEEE Workshop on Complexity in Engineering, COMPENG 2012 - Proceedings. - : IEEE. ; , s. 107-112
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Konferensbidrag (refereegranskat)abstract
- Two sequential approaches to prevent voltage instability are proposed in this article. The first approach utilizes synchrophasors in order to establish when the system is leading to a voltage instability and also to trigger the operation of HVDCs to relieve the system's stress. The second approach is used to ensure that HVDCs will operate securely when their transfer is pushed towards the maximum transferable power level.
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| 5. |
- Weyrich, K., et al.
(författare)
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Real-time implementation of an Automatic Voltage Stabilizer for HVDC Control
- 2012
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Ingår i: Proceedings Innovative Smart Grid Technologies (ISGT Europe), 2012 3rd IEEE PES International Conference and Exhibition. - : Institute of Electrical and Electronics Engineers (IEEE). ; , s. 6465848-
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Konferensbidrag (refereegranskat)abstract
- Classic HVDC systems are prone to voltage instability when operating on weak AC grids. This paper describes the implementation of a newly developed Automatic Voltage Stabilizer (AVS) in an existing CIGRÉ Benchmark Model for HVDC Controls and compares its performance with the Voltage Dependent Current Order Limitation (VDCOL) method. The tools used for the study are the eMegaSim OPAL-RT real-time simulator and the PSCAD/EMTDC digital simulator. With AVS, the power transfer can be optimized and kept at or close to the steady state stability limit thereby compensating for deficiencies of VDCOL. Using two different simulation environments provides important information on their capabilities to develop and improve future power system controls.
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