The full-bridge submodule (FBSM)-based modular multilevel converter (FBSM-MMC) offers promising performance due to its ability output negative FBSM voltage. This paper studies this of the FBSM-MMC under zero-sequence voltage injection (ZSVI) and second-order harmonic current (SHCI). focus research is redistribute powers by injecting an additional power degree freedom, resulting in a smaller cap...

Highly regio- and enantioselective allylic alkylation of fluorobis(phenylsulfonyl)methane (FBSM) has been realized by [Ir(COD)Cl](2)/phosphoramidite, affording enantiopure fluorobis(phenylsulfonyl)methylated compounds bearing a terminal alkene, which could be converted to monofluoro-methylated ibuprofen in just two steps without loss of the optical purity (95% ee).

In this paper, a fast binary set mapping (FBSM) algorithm is proposed for expediting the conversion from histograms to binary color sets. In comparison with the original mapping scheme, signi®cant reduction in the computation complexity can be achieved. Such an ecient mapping algorithm justi®es the practical usage of the pre®ltering technique in the application to histogram-based image retriev...

Recommending new items to existing users has remained a challenging problem due to absence of user’s past preferences for these items. The user personalized non-collaborative methods based on item features can be used to address this item cold-start problem. These methods rely on similarities between the target item and user’s previous preferred items. While computing similarities based on item...

DC faults can easily lead to overcurrent in dc distribution networks; these pose serious threats the safe operation of system. The blocking a modular multilevel converter based on full-bridge submodule (FBSM-MMC) is mostly utilized cut off fault current. However, causes short-term blackouts entire network, and there are presently no effective solutions address this problem. In study, an integra...

In this research we used forward-backward sweep method(FBSM) in order to solve optimal control problems. In this paper, one hybrid method based on ERK method of order 4 and 5 are proposed for the numerical approximation of the OCP. The convergence of the new method has been proved .This method indicate more accurate numerical results compared with those of ERK method of order 4 and 5 for solvin...

This paper proposes a hybrid submodule modular multilevel converter (MMC) topology which is suitable for multi terminal direct current (MTDC) transmission systems. Each arm of the proposed MMC consists half-bridge (HBSM) branch and two parallel full-bridge (FBSM) branches. Comparing with conventional MTDC system, can selectively block DC fault isolate corresponding line without expensive circui...

Reducing the capacitor voltage ripples of half-bridge submodules (HBSM) and full-bridge (FBSM) in a hybrid modular multilevel converter (MMC) is expected to reduce capacitance, volume, costs. To address this issue, article proposes dual harmonic injection method which injects second circulating current third-order into conventional MMC control. First, mathematical model proposed control establi...

Melanoma is a cancerous lesion in the pigment-bearing basal layers of the epidermis and is the most deadly form of skin cancer, yet it is also the most treatable, with a cure rate for early-stage melanoma of almost 100%. Therefore, there is a need to develop computer-aided diagnostic systems to facilitate the early detection of melanoma. The first step in these systems is skin lesion segmentati...