Results 1 to 10 of about 489,572 (304)

Genome-wide donor-recipient non-HLA mismatch and graft loss. [PDF]

Nephrol Dial Transplant
ABSTRACT HLA-matching between donor (D) and recipient (R) is routinely performed in kidney allocation to optimize allograft survival but explains only a moderate variability of these outcomes. Recent findings suggest that donor-to-recipient mismatches outside the HLA region contribute to alloimmunity and graft loss, but the extent varies
Pickl J, Heinzel A, Shoebridge S, Kainz A, Oberbauer R.   +4 more
europepmc   +3 more sources

Power Enhancement in Partial Shaded Photovoltaic System Using Spiral Pattern Array Configuration Scheme

IEEE Access, 2021
Partial shading causes mismatch losses in the solar PV system. In the PV array, the power output from the healthy PV modules is gone in vain due to the mismatch losses.
Santhan Kumar Cherukuri, Praveen Kumar Balachandran, Kalyan Raj Kaniganti, Madhu Kiran Buddi, Dasu Butti, S. Devakirubakaran, Thanikanti Sudhakar Babu, Hassan Haes Alhelou   +7 more
doaj   +1 more source

L-Shape Propagated Array Configuration With Dynamic Reconfiguration Algorithm for Enhancing Energy Conversion Rate of Partial Shaded Photovoltaic Systems

IEEE Access, 2021
Partial shading is an unavoidable factor that reduces the performance of solar PV systems. The PV system receives uneven irradiation due to partial shading which causes the mismatch loss.
A. Srinivasan, S. Devakirubakaran, B. Meenakshi Sundaram, Praveen Kumar Balachandran, Santhan Kumar Cherukuri, D. Prince Winston, Thanikanti Sudhakar Babu, Hassan Haes Alhelou   +7 more
doaj   +1 more source

Performance and Reliability Improvement of Partially Shaded PV Arrays by One-Time Electrical Reconfiguration

IEEE Access, 2022
Partial shading is the most unexpected scenario encountered by the arrays that degrade the performance causing power reduction, non-convex characteristics curves, losses, hotspot, module damage, and system failure. The adoption of various reconfiguration
Priya Ranjan Satpathy, Pritam Bhowmik, Thanikanti Sudhakar Babu, Chiranjit Sain, Renu Sharma, Hassan Haes Alhelou   +5 more
doaj   +1 more source

Impact of Uneven Shading by Neighboring Buildings and Clouds on the Conventional and Hybrid Configurations of Roof-Top PV Arrays

IEEE Access, 2021
Partial shading is the commonly encountered scenario of building roof-top based PV arrays that mainly occur due to the shadow of the neighbouring buildings and clouds resulting in unexpected losses and deteriorated system performance.
Priya Ranjan Satpathy, Thanikanti Sudhakar Babu, Sathish Kumar Shanmugam, Lakshman Naik Popavath, Hassan Haes Alhelou   +4 more
doaj   +1 more source

A Scalable Hierarchical Dynamic PV Array Reconfiguration under Partial Shading

Energies, 2023
Photovoltaic (PV) arrays are often affected by partial shading (PS), which can significantly reduce their power output. Dynamic reconfiguration is a promising technique for mitigating the negative effects of PS by adjusting the electrical connections of ...
Fatimah Ameen, Abdulrahman Siddiq, Attila Trohák, Rabab Benotsmane   +3 more
doaj   +1 more source

A Dimension-Independent Array Relocation (DIAR) Approach for Partial Shading Losses Minimization in Asymmetrical Photovoltaic Arrays

IEEE Access, 2023
Solar photovoltaic (PV) power system consists of numerous modules connected in series and parallel to generate a certain range of voltage and current outputs.
Pradyumna Mallick, Renu Sharma, Priya Ranjan Satpathy, Sudhakar Babu Thanikanti, Nnamdi I. Nwulu   +4 more
doaj   +1 more source

The THE FREQUENCY OF MISMATCH REPAIR DEFICIENCY IN COLORECTAL CARCINOMA DETERMINED BY IMMUNOHISTOCHEMISTRY

Pakistan Armed Forces Medical Journal, 2021
Objective: To determine the frequency of mismatch repair deficiency in colorectal carcinoma determined by immunohistochemistry. Study Design: Cross-sectional study.
Maria Naseem, Muhammad Asif, Hafeez Ud Din, Muhammad Tahir Khadim, Ahmed Ahson Khan, Shahid Jamal, Iman Shoaib   +6 more
doaj   +1 more source

Relaying systems with reciprocity mismatch : impact analysis and calibration [PDF]

, 2020
Cooperative beamforming can provide significant performance improvement for relaying systems with the help of the channel state information (CSI). In time-division duplexing (TDD) mode, the estimated CSI will deteriorate due to the reciprocity mismatch ...
Chen, Li, Chen, Yunfei, Nie, Rongjiang, Wei, Guo, Yu, F. Richard, Zhao, Nan   +5 more
core   +1 more source

Energy Acquisition of Solar-Powered Joint-Wing Aircraft Considering Mismatch Power Loss

Energies, 2021
Solar-powered aircraft can perform long-term flights with clean solar energy. However, the energy derived from solar irradiation is influenced by the time of year and latitude, which limits the energy acquisition ability of solar aircraft with a straight-
Xinzhe Ji, Kangwen Sun, Xiao Guo, Mou Sun   +3 more
doaj   +1 more source