Algorithm HBB-BC for Feeders Reconfiguration Considering Wind and Photovoltaic Generation
2018 IEEE INTERNATIONAL CONFERENCE ON AUTOMATION/XXIII CONGRESS OF THE CHILEAN ASSOCIATION OF AUTOMATIC CONTROL (ICA-ACCA)
Authors: Reyes, Leonidas Munoz; Baeza, Jorge Mendoza
Abstract
This paper, it is proposed a hybrid optimization method called Big Bang - Big Crunch (HBB-BC), for solve the reconfiguration problem in the power distribution network. The approach of problem considers the presence of wind and photovoltaic distributed generation (DG). To perform the optimization problem, two objectives were considered: minimize the active power losses and the voltage deviation index. The decision variable, is the state of the elements of maneuver, protection and/ or sectioning that are present in the network. The simulations are will be done it the IEEE33 and Real163 network, where the results obtained allow comparing the benefits obtained when carrying out the reconfiguration considering DG. Finally, the values are compared with other previous work to verify of the results obtained by the HBB-BC algorithm.
Hemoglobin Hornchurch [beta 43 (CD2) Glu > Lys; HBB: c.130G > A] in a Chinese boy complicated with thrombocytopenia A case report and literature review
MEDICINE
Authors: Shi, Huiping; Wang, Zhaoyue
Abstract
Rationale: Hemoglobin Hornchurch is regarded as an asymptomatic hemoglobinopathy with no obvious hematological or clinical abnormalities. Recently, we identified hemoglobin Hornchurch in a 13-year-old Chinese boy complicated with thrombocytopenia, which displayed instability in isopropanol precipitation test. Patient concerns: In this case report, we reported a Chinese boy with hemoglobin Hornchurch complicated by thrombocytopenia. The patients have been misdiagnosed as aplastic anemia and myelodysplastic syndrome before. Diagnoses: Hemolysis tests, high-performance liquid chromatography, and HBB gene sequencing identified the E44K (G>A) mutation. Isopropanol precipitation test showed instability in hemoglobin Hornchurch. Interventions: The patient was given immunosuppressive therapy for 3 months. Outcomes: His general conditions have improved along with the recovery of the hemogram index. Lessons: Further research is needed to clarify the relation between structural abnormality and functional properties of hemoglobin Hornchurch. This second case of hemoglobin Hornchurch indicates that there might be more hemoglobin variants or their carriers in the Chinese population.
COA
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