In the directed minimum spanning tree problem (DMST, also called weight arborescence), we are given a weighted graph, and root node r. Our goal is to construct minimum-weight tree, rooted at r oriented outwards. We present first sub-quadratic DMST algorithm in distributed $${\mathsf {CONGEST}}$$ network model, where messages exchanged between nodes bounded size. consider three versions of model...

Rüzgar türbinlerinde kanat profili seçimi türbinin aerodinamik performansı açısından çok önemlidir. Bu çalışmada dikey eksenli H-Darrieus rüzgar simetrik ve asimetrik kullanımının türbin verimine olan etkisi sayısal olarak incelenmiştir. Beş (NACA0009, NACA0012, NACA0015, NACA0018, NACA0021) ile beş profilinin (NACA2412, NACA4412, NACA6412, NACA8412, NACA10412) türbininde kullanılması durumunda...

The antibacterial activity of ethanolic extracts of selected Thai medicinal plants (Rhodomyrtus tomentosa (Aiton) Hassk., Quercus infectoria G. Olivier, and Eleutherine americana Merr.) against Campylobacter spp. was investigated. Sixty-five Campylobacter, including 39 isolates from humans and 26 isolates from chicken samples, were tested. Reference Campylobacter spp. that are commonly encounte...

Vertical-axis wind turbines (VAWTs) have drawn increased attention for off-grid and off-shore power generation due to inherent advantages over the more popular horizontal-axis (HAWTs). Among these are generator locale, omni-directionality simplistic design. However, one major disadvantage is lower efficiency, which can be alleviated through blade pitching. Since each must transit both up- down-...

Blockchain has become an unavoidable future in enterprise finance, particularly enabling and securing cross-company transactions. By introducing a comparable notion of smart contract, the trusted sub-ledger operation (TSLO), this article will propose complete architecture based on to solve traceability validity accounting data by assets groupement. TSLO is more flexible adaptable method for ass...

The company needs a productive workforce but there are still employees who cannot achieve the target according to plan/on time in job. If wages and incentives not accordance with employee's work, it will cause problems employee productivity. This study is intended determine effect of on work productivity PT. DMST 1 Sragen. Researchers use quantitative research. For population this study, namely...