Coded mask imagers when to use them – and when not

Coded Mask Imagers when to use them – and when not

Coded mask imagers are among a class of high energy astronomical instruments in which spatial or temporal coding, or a combination of the two, allows ‘multiplexing’ of the detection process. In this way many ‘pixels’ of an image can be observed and measured simultaneously. In certain circumstances this gives an advantage in signal to noise ratio, compared with an alternative approach in which e...

Goals and responses to failure: Knowing when to hold them and when to fold them

The ability to disengage from hopeless situations is critical to goal attainment and effective selfregulation. Two experiments investigated the effects of striving to attain success (approach goals) versus striving to avoid failure (avoidance goals) on persistence. Participants completed anagrams designed so that less persistence during an initial set of unsolvable anagrams was beneficial. In S...

Rh Immune Globulin & Citrus Bioflavonoids: When to Use Them

When to Use Aoi, When to Use Axi, and When to Use Both

With today’s technology embracing ever-smaller chip components, array packages with hidden solder joints, and numerous components on both sides of the printed circuit board assembly (PCBA), manual visual inspection is running out of steam to adequately address these challenges. AOI (automatic optical inspection) and/or AXI (automatic X-ray inspection) are starting to be used at a majority of to...

What Analogies to Use in an Electronic Tutoring System and When to Use Them

We are building a new version of our intelligent tutoring system, CIRCSIM-Tutor, using Freedman's APE Planner. APE's powerful planning capabilities make it feasible to implement a number of new features. This paper focuses on adding the capability of generating analogies. Once the system can generate analogies it is possible that students will generate them too. Recognizing student analogies is...