Analytical Challenges and Strategies in FE-EPMA

Analytical Challenges and Strategies in FE-EPMA

Unquestionably, since their introduction one decade ago, field emission (FE) electron microprobes have pushed the boundaries of electron probe microanalysis (EPMA) by offering new possibilities to characterize smaller features. As with conventional microprobes, the proper selection of the analytical conditions (beam energy, beam current, acquisition time, x-ray line) is essential to obtain an a...

Strategies for Low Accelerating Voltage X-ray Microanalysis of Sub-Micrometer Features with the FE-EPMA

X-ray microanalyses of sub-micrometer features require that a lower accelerating voltage be used. This reduction in the accelerating voltage reduces the penetrating distance of the beam electrons and thereby reduces the analytical volume. Two general strategies have been proposed for achieving the smallest analytical volume. The first approach involves significantly reducing the accelerating vo...

Cultural tourism: challenges and strategies

Guessing in Multiple Choice Questions: Challenges and Strategies

Introduction: Guessing is one of the most challenging issues in multiple choice questions. Several strategies, such as negative scoring, have been suggested for preventing students from choosing the right answer just by chance. However, there is no general agreement on using such strategies. The aim of this study was to review the scoring methods which are used for reducing guessing, and evalua...

on the relationship between iranian learners personality type and communication strategies in speaking.

چکیده شخصیت به مجموعه عوامل روانی، عقلی، احساسی، و فیزیکی تشکیل دهنده یک فرد اطلاق میشود، خصوصا فرد ازدیدگاه دیگران ( مرجع). تدابیر یاد گیری سعی در اگاهی از اقدامات زبان اموزان موفق زبان دوم یا یک زبان بیگانه را دارد که توسط خود زبان اموزان گزارش میشود،یا حین یادگیری زبان دوم یا زبان بیگانه از انها قابل مشاهده است( روبین و وندن 1987). همچنین تدابیر ارتباطی به زبان اموزان کمک می کند تا بر مشکلا...