In a high switching frequency operation of current-source inverter (CSI), a conventional way to obtain unidirectional power switches is by connecting discrete diodes in series with the high speed power switches, i.e. power MOSFETs or IGBTs. However, these discrete diodes will cause extra losses to the power converter. This paper presents experimental test results of high switching frequency fiv...

This paper introducing a novel technique called as redundant binary booth algorithm. The redundant binary in the design of high-speed digital multipliers is beneficial due to its high modularity and carry-free addition. Generally, in a high radix modified Booth encoding algorithm the partial products are reduced in multiplication process. But it yields complexity in producing in generation of h...

This report presents power consumption results of 24-bit hybrid TCS (Tree Carry Select) adders using HEAT tool. Fast binary adder architectures which can be implemented using multiplexers have been proposed in 1]. This binary adders are carried out using fast redundant-to-binary (RB) converter. Two types of RB converters based on tree-type and carry-select were designed. In this report, the low...

the distinction between malignant and benign pheochromocytoma has always been a diagnostic challenge over the last decades. to date, the only reliable criterion is metastasis. the aim of the present study was to investigate the possible expression of pituitary-tumor transforming gene (pttg1) and retinoblastoma (rb) in benign and malignant pheochromocytoma. paraffin blocks of 44 and 11 patients ...

This paper proposes the design and implementation of a 15kW three-phase T-type inverter. Fuji Electric's new generation IGBT module (V series) using RB-IGBT technology is applied for converter, due to its higher efficiency from conventional IGBTs reduce switching losses on semiconductors. Under full load conditions, overall converter can reach over 98%. The control sine PWM modulation are imple...

A detector for momentum measurements of highenergy neutrons in the energy range 200 MeV to 1000 MeV is being developed for the RB experiment at FAIR. The detection principle is based on a combination of converter material and subsequent detection of charged particles from reactions in the converter material. Multigap Resistive-Plate Chambers (MRPC) are used for the detection of charged particle...

The method of direct imaging has detected many exoplanets and made important contribution to the field planet formation. standard employs angular differential (ADI) technique, more ADI image frames could lead results with larger signal-to-noise-ratio (SNR). However, it would need precious observational time from large telescopes, which are always over-subscribed. We thus explore possibility gen...

The European species of the genera Amblyscelio and Baryconus are reviewed and revised based on morphological data. Females of Amblyscelio striaticeps Kieffer, 1913 and Baryconus graeffei (Kieffer, 1908) are described and the ovipositor of Amblyscelio is illustrated for the first time. The monotypic genus Amblyscelio was previously known only from a single male specimen. Baryconus graeffei is co...