نتایج جستجو برای: chb inverter
تعداد نتایج: 12679 فیلتر نتایج به سال:
Photovoltaic (PV) cell-level inverters have recently gained popularity, as they provide individual maximum power point tracking and energy management, minimizing so the mismatch losses, caused by partial-shading, degradation effects cell manufacturing variations in solar modules arrays. In this article, a fully decentralized control scheme, applicable to PV cascaded H-bridge (CHB) configuration...
Background. Chronic infection with hepatitis B virus (HBV) is a leading cause of cirrhosis and hepatocellular carcinoma. By traditional Chinese medicine (TCM) pattern classification, damp heat stasis in the middle-jiao (DHSM) and liver Qi stagnation and spleen deficiency (LSSD) are two most common subtypes of CHB. Results. In this study, we employed iTRAQ proteomics technology to identify poten...
UNLABELLED Hepatitis B virus (HBV) infection is the predominant risk factor for chronic hepatitis B (CHB), liver cirrhosis (LC) and hepatocellular carcinoma (HCC). Recently, several genome-wide association studies (GWASs) of CHB identified human leukocyte antigen (HLA) loci, including HLA-DP and HLA-DQ in Asian populations, as being associated with the risk of CHB. To confirm and identify the h...
Abstract: Background and Aim: Since electrocardiography (ECG) is essential for the diagnosis of pediatric asymptomatic Complete Heart Block (CHB) and it is not usually done in the preoperative evaluation of asymptomatic children, physicians might confront with asymptomatic cases of CHB at anesthesia induction. Case Report: In this study, we introduced a 31-month-old boy who faced CHB after anes...
In most high power industrial applications, the low switching frequency modulations (LSFM) are usually implemented to reduce loss and heat dissipation pressure. However, there some unexpected influences caused by order harmonic sinusoidal pulse width modulation (SPWM), such as imbalanced submodule in cascaded half-bridge inverter (CHB) limited output capability H-bridge neutral-point-clamped (H...
AIM To investigate the effects of niacin on choroidal blood flow in age related macular degeneration (AMD). METHODS 12 AMD patients with bilateral drusen and visual acuity of 20/40 or better in the study eye received a single oral dose of niacin (six subjects received 500 mg and six received 250 mg) or matching placebo on two separate occasions. Laser Doppler flowmetry was used to assess rela...
Introduction. Cascaded H-bridge multilevel inverters (CHB-MLI) are becoming increasingly used in applications such as distribution systems, electrical traction high voltage direct conversion and many others. Despite the fact that contain a large number of control switches, detecting malfunction takes significant amount time. In fault switch configurations diode included for freewheeling operati...
Cardiac contusion is a well-recognized complication of blunt chest trauma. Various conduction system disorders have been reported in association with this condition, the most common being right bundle branch block. Complete heart block (CHB) is seen rarely. Most cases of CHB are transient. We present the case of an 80-year-old woman who developed CHB and asystole following blunt cardiac trauma....
This paper implements Broyden's Method Assisted Differential Evolution (BMADE) algorithm for eliminating third and fifth harmonics in the output voltage of 7-level cascaded H-Bridge multilevel inverter (CHB-MLI) using selective harmonic elimination technique. Calculations switching angles are done various modulation index values (M). Initial guess method is calculated by (DE). Exact value then ...
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