نتایج جستجو برای: reactive focus on form
تعداد نتایج: 8779628 فیلتر نتایج به سال:
Cordierite ceramics are used as refractory materials and kiln furnaces tools due to their very low coefficient of thermal expansion, high corrosion resistance and excellent thermal shock resistance. The aim of the present work was to synthesis of cordierite with raw materials including nano silica, magnesium chloride and reactive alumina. The synthesis procedure is done at solid state. Mechanis...
In this paper we present an online learning algorithm that lets an agent architecture acquire an attentional strategy that is adapted to the environment. This allows the agent to focus its reasoning on the most rewarding parts of its knowledge base and hence achieve a higher performance under time and computational resource constraints. We use the ICARUS agent architecture as an underlying fram...
The ability to form multiple carbon-carbon bonds in a controlled sequence and thus rapidly build molecular complexity in an iterative fashion is an important goal in modern chemical synthesis. In recent times, transition-metal-catalysed coupling reactions have dominated in the development of C-C bond forming processes. A desire to reduce the reliance on precious metals and a need to obtain prod...
Despite the abundance of research on teachers’ repair practices in language classroom interaction, there are not enough conversation analytic studies on repair organization with the focus on the details of interaction in the context of EFL. Drawing on sociocultural and situated learning theories, this study explores the contingent nature of English language teachers’ org...
one of the most important number sequences in mathematics is fibonacci sequence. fibonacci sequence except for mathematics is applied to other branches of science such as physics and arts. in fact, between anesthetics and this sequence there exists a wonderful relation. fibonacci sequence has an importance characteristic which is the golden number. in this thesis, the golden number is observed ...
Since 1947, with the beginning of the immigration to Israel on a large scale, systematic x-ray examinations were done on immigrants in the reception camps. Now our mass radiographic studies include 350,000 people. In the first years, 1947-48, the high percentage of cases with active tuberculosis of the lungs was striking (0.8 per cent), and among them we found one particular form of tuberculous...
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