نتایج جستجو برای: select solvent system
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Learning styles refer to how a person acquires and processes information. Identifying the learning styles of students is important because it allows more personnalized teaching. The most popular method for learning style recognition is through the use of a questionnaire. Although such an approach can correctly identify the learning style of a student, it suffers from three important limitations...
RÉSUMÉ. La programmation de systèmes réactifs tels que les simulateurs de systèmes dynamiques ou les jeux vidéo est une tâche difficile. Les techniques classiques pour programmer ces systèmes sont fondées sur l’utilisation de bibliothèques de threads ou de programmation événementielle. Nous introduisons ici le langage REACTIVEML comme une alternative à ces pratiques. Le langage est une extensio...
Sesquiterpenes lactones including costunolide and dehydrocostus lactone, were isolated from Saussurea lappa roots, which had exhibited a wide range of biological activities such as anti-cancer, anti-inflammatory, antiulcer, and immunomodulatory activities. High-speed counter-current chromatography (HSCCC) was applied for the rapid preparative isolation of sesquiterpenes lactones from <...
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