نتایج جستجو برای: blended amines
تعداد نتایج: 33551 فیلتر نتایج به سال:
carbon dioxide is a major greenhouse gas that contributes to the global warming by more than %60. absorption has been widely used to treat high concentrations of co2 in synthesis gas production, hydrogen manufacturing, and natural gas processing. the most well established method to capture co2 is its removal by absorption into amine solutions in the presence of activators. in this research, co2...
حفاظت از گروههای عاملی از مراحل اجتناب ناپذیر در سنتز آلی است، در این بین محافظت از گروههای آمینی بسیار حائز اهمیت است. روشهای متعددی از قبیل فرمیله کردن، استیله کردن، محافظت بصورت boc و موارد زیاد دیگری جهت محافظت از گروههای آمینی تاکنون گزارش شده است. از طرف دیگر توسعه و کاربرد کاتالیست ها و حلالهای دوستدار محیط زیست و مزایای واکنشهای بدون حلال همچون سرعت بالای واکنش، خالص سازی آسان، کاهش آلو...
The cognitive theory of conceptual blending models human creativity as a mental process that combines two mental spaces into a new mental space, called a blend. According to this theory, a blend is constructed by taking the commonalities among the input mental spaces into account, to form a so-called generic space, and by projecting their non-common structure in a selective way to the novel ble...
Dr Inventor is a tool that aims to enhance the professional (Pro-c) creativity of researchers by suggesting novel hypotheses, arising from analogies between publications. Dr Inventor processes original research documents using a combination of lexical analysis and cognitive computation to identify novel comparisons that suggest new research hypotheses, with the objective of supporting a novel r...
In this paper, the connection between metaphor, metonymy, blending and humour is discussed against an analysis of puns in print advertisements featuring both visual and verbal elements. The analysis is based on the theory of conceptual blending (Fauconnier and Turner 1994, 1996 etc.) and on analyses of humour within that framework made by Coulson (1996, 2001, in press), but it also draws on obs...
Environ. Entomol. 27(3): 688-694 (1998) ABSTRACT In field trapping tests, phenyl alkyl amines and phenyl alkyl alcohols with 2-carbon side chains attracted significantly more adult females of the northern com rootworm, Diabrotica barberi Smith & Lawrence, than did phenyl alkyl amines or phenyl alkyl alcohols with 1-, 3-, or 4-carbon side chains. Both sexes ofnorthern com rootworm were attracted...
This study used monoethanolamine (MEA) as an amine-based solvent, which was blended with secondary amines (DIPA), tertiary amines, stereo and piperazine (PZ) to prepare mixed at the required concentrations, were test solvents. To search for best-mixed a continuous bubble-column scrubber adopted explore performance of solvents presented in this study. The solvent regeneration also carried out di...
Introduction: Since electronic interaction of students in teaching-learning process in blended learning as well as identification of factors influencing it are essential, this study aimed to investigate the role of self-directed learning readiness and critical thinking disposition in Nursing and Midwifery students’ interaction in blended learning environment. Methods: This descriptive study was...
This paper explores the role of Blending Theory, as a framework, to aid in design decisions while deploying mobile experiences for heritage storytelling. Blending Theory provides a structured way of thinking about how digital and physical spaces can be brought together to create new experiences in blended spaces. In this paper we describe the development of an app that aims to enhance the visit...
the management of agricultural education faces on-going challenges to deliver current and effective materials in an approach that takes advantage of developments in education technology. in this article the use of blended learning was compared with the traditional approach for the instruction of theoretical materials in agricultural education. this study used a pre-test, post-test experimental ...
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