uv/tio2 photocatalysis of chelated copper in aqueous solutions has been performed starting from cu(ii)-tartaric acid, cu(ii)-citric acid, cu(ii)-edta and cu(ii)-dtpa,in the presence of oxygen and at acidic ph. the photocatalytic reaction obeys first-order kinetic equation. the influence of cu(ii) on photocatalytic oxidation of organic ligands and how the various organics will affect the treatmen...

a series of copper and cobalt substituted nanospinel ferrites have been synthesized by the hydrothermal method. these compounds were characterized by ft-ir, xrd, edx, sem and vsm techniques. all of the synthesized nanospinel ferrites were found to be highly efficient and magnetically recoverable in the solvent-free synthesis of substituted 2,6-(2-hydroxybenzyl)-phenols (trisphenols). a wide ran...

In recent times, intuitionistic fuzzy sets introduced by Atanassov has been one of the most powerful and flexible approaches for dealing with complex and uncertain situations of real world. In particular, the concept of divergence between intuitionistic fuzzy sets is important since it has applications in various areas such as image segmentation, decision making, medical diagnosis, pattern reco...

Studies on the evolutionary history of ascomycetes in terms of time scale will help to understand historical patterns that shape their biodiversity. Until now most of dating studies of ascomycetes have focused on major events in fungal evolution but not on divergence events within smaller groups of fungi e.g. within Sordariomycetes. We used molecular dating to estimate the time of separation of...

this study utilizes a decade long (2005-2014) monthly data of total column tropospheric ozone (tcto) in dubson units to evaluate the spatial and temporal trend of lao over some major cities of west africa, namely lagos, accra, niamey, abuja, bamako, dakar, agadez, conakry, kano, and ouagadougou which are either capital cites or major commercial hubs, where the population ranges from 0.09 millio...

Laser diode beam divergence is the main parameter for beam shaping and fiber optic coupling. Increasing the waveguide layer thickness is the conventional method to decrease the beam divergence. In this paper, the broadened asymmetric waveguide is introduced to decrease the divergence without increasing the optical power. The asymmetric waveguide was used to shift the vertical optical field to n...

Reinforcement learning (RL) has become a popular framework for autonomous behaviour generation from limited feedback [2, 3], but RL methods typically learn tabula rasa. Transfer learning (TL) aims to improve learning by providing informative knowledge from a previous (source) task or tasks to a learning agent in a novel (target) task. If the agent is to be fully autonomous, it must: (1) automat...

alismatis rhizoma decoction (ard) is a classical traditional chinese medicine (tcm) formula for treatment of vertigo with its long history of successful clinical effect. since vertigo is a symptom of hyperlipidemia, this study aimed at evaluating the hypolipidemic effect of ard in hyperlipidemia mice induced by high fat diet (hfd) and investigated the rationality of formula combination of alism...

We examine the role of corporate culture in M&As by utilizing a unique social responsibility (CSR) dataset, providing in-depth information on multiple dimensions organizational 22 developed markets. In accordance with prediction clash theory, wider divergence between CSR cultures acquiring and target firms is associated lower acquirer announcement long-run returns as well synergistic gains for ...