Cu2(OBA)2(BPY) metal–organic framework was utilized as a productive heterogeneous catalyst for the synthesis of 3-aroylquinolines via one-pot domino reactions of 2-aminobenzylalcohols with propiophenones.
The paper presents dynamics of environmental quality of surface water of Suoi Hai lake, Ba Vi district, Hanoi city from June 2020 to February 2021. There are 11 studied environmental parameters, including transparency, temperature, conductivity, pH, dissolved oxygen concentration, BOD, COD, total nitrogen, total phosphate, hardness and chlorophyll a. The results of analyses show that the lake water is showing signs of pollution. Some parameters at the sampling points during the monitoring period exceeded the permitted limits of the Ministry of Natural Resources and Enviroment's national technical regulations on surface water quality (QCVN 08-MT: 2015/BTNMT). The results of this work also give assessments and comments on the dynamics over time, rainy and dry seasons of the studied environmental parameters. The results of present work provide reference material for regulatory bodies, as well as for follow-up studies on the environment and ecology.
This article is based on the survey results of woodblocks of Vinh Nghiem Pagoda, in Tri Dung commune, Yen Dung district, Bac Giang province, Vietnam. From the survey results, the author group wishes to release the value of woodblocks of Vinh Nghiem Pagoda in history and at present on with regards to two aspects, archives and transmission of Vietnamese Buddhism tradition in general and Truc Lam Buddhism in particular. Especially, on the basis of assessing the process of handing the heritage of materials, the author group has learnt strengths and weaknesses of Vietnam in the process of handling woodblocks, an important phase in the digitization process.
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