نتایج جستجو برای: unsymmetrical fault

تعداد نتایج: 65475  

2016
Gavin W. Roffe Graham J. Tizzard Simon J. Coles Hazel Cox John Spencer

1-(3-(Pyridin-2-yl)phenyl)methanamine derivatives have been synthesized and underwent C–H bond activation to afford unsymmetrical NCN’ pincer palladacycles, which were characterised in the solid state. 2-Pyridinyl-phenol and -benzyl alcohols were then used as precursors to unsymmetrical PCN pincer palladacycles. Catalytic applications, where the palladacycle remains in the Pd(II) state, have be...

Journal: :Inorganic chemistry 2008
Yu-Fei Song De-Liang Long Stephanie E Kelly Leroy Cronin

The unsymmetrical Mn-Anderson polyoxometalate cluster, [N(C4H9)4]3[MnMo6O18(C4H6O3NO2)(C4H6O3NH2)] (1; N(C4H9)4(+) = TBA(+)), has been prepared and characterized by X-ray crystallography and electrospray ionization mass spectrometry (ESI-MS). Covalent functionalization of compound 1 leads to the controlled assemblies of unsymmetrical alkoxopolyoxometalate clusters of compounds 2-5, which can be...

Journal: :Indonesian Journal of Electrical Engineering and Computer Science 2021

This paper proposes an analysis of high-impedance fault detection algorithms for medium voltage distribution lines based on the discrete wavelet transform (DWT) technique and a more advanced named independent component (ICA) independently. Three-phase line model two diodes high impedance model, which represents unsymmetrical current electric arc, simulated using MATLAB/Simulink. High (HIF) algo...

Journal: :Journal of the American Chemical Society 1941

Journal: :Chemical communications 2013
Ajay Venugopal Floriana Tuna Thomas P Spaniol Liviu Ungur Liviu F Chibotaru Jun Okuda Richard A Layfield

An experimental and ab initio computational study of an unsymmetrical, hydride-bridged di-dysprosium single-molecule magnet is reported.

2017
Meriem K. Abderrezak Zahia Kabouche Christian Bruneau Cédric Fischmeister

Ene-yne cross-metathesis from alkynes and ethylene is a useful method to produce substituted conjugated butadiene derivatives. If this method has been used with aliphatic alkynes, it has however never been used starting from diarylacetylenes as internal alkynes. We show that the ene-yne cross-metathesis catalyzed by the second generation Hoveyda ruthenium catalyst provides the 2,3-diarylbuta-1,...

Journal: :Organic & biomolecular chemistry 2012
Ganapathy Balaji Andrea M Della Pelle Bhooshan C Popere A Chandrasekaran S Thayumanavan

We report the syntheses and properties of thienopyrrole based unsymmetrical and extended heteroacenes, which are isoelectronic with heptacene (30π) and nonacene (38π), respectively. Optical and electrochemical properties of these seven and nine rings fused systems are studied. The optoelectronic properties of the syn and anti-isomers of the unsymmetrical heteroacenes are also compared. The infl...

Journal: :Energies 2022

The microgrid (MG) is a popular concept to handle the high penetration of distributed energy resources, such as renewable and storage systems, into electric grids. However, integration inverter-interfaced generation units (IIDGs) imposes control protection challenges. Fault identification, classification isolation are major concerns with IIDGs-based active MGs where IIDGs reveal arbitrary imped...

2006
D. T. NGUYEN

Unified unsymmetrical and symmetrical iterative solvers for handling multiple right-hand-side vectors are examined in this work. Efficient computer implementation strategies (to reduce computational time and in-core memory requirements) are proposed. In-core, out-of-core, linear, multiple right hand side (RHS) vectors, non-linear, symmetrical, and unsymmetrical capabilities of the developed sof...

Journal: :Bioorganic & medicinal chemistry letters 2014
Bo Zhong Rati Lama Wannarasmi Ketchart Monica M Montano Bin Su

The potency of a series of Hexamethylene bis-acetamide (HMBA) derivatives inducing Hexamethylene bis-acetamide inducible protein 1 (HEXIM1) was determined in LNCaP prostate cancer cells. Several compounds with unsymmetrical structures showed significantly improved activity. Distinct from HMBA, these analogs have increased hydrophobicity and can improve the short half-life of HMBA, which is one ...

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