This paper presents a Q&A model, which can be used as a basis for the development of educational software using component and framework-based software development technology. The Q&A model is used to identify possible questions covering any subject based on the Bloom’s Taxonomy of learning in a cognitive domain. The proposed vertical framework is applied to an educational domain. It provides a ...

We describe a new paradigm for implementing inference in belief networks, which consists of two steps: (1) compiling a belief network into an arithmetic expression called a Query DAG (Q-DAG); and (2) answering queries using a simple evaluation algorithm. Each node of a Q-DAG represents a numeric operation, a number, or a symbol for evidence. Each leaf node of a Q-DAG represents the answer to a ...

This thesis is concerned with approximations of certain M(t)/G(t)/n(t)/n(t) + q queueing systems. More specifically, we are interested in such systems under very general conditions such as time-varying demand and capacity, and high utilization, including occasional oversaturation. Conditions such as these cannot be addressed with existing methodologies. We focus on M(t)/G(t)/n(t)/n(t) + q syste...

Current software development practices leave a plethora of activities that are archived in version control systems, issue trackers, mailing lists, or Question and Answer (Q&A) forums. Software managers are increasingly using these online activities to better evaluate job candidates. We introduce our tool, Visual Resume, that displays visual overviews of developers’ contributions in code sharing...

Porosity is one of the most important properties textile materials that ensures their comfort and usability. The internal pore structure cotton fiber assembly complex changeable, surface difficult to explain its structure. It intended develop a method predict morphology assembly. Pore image multi-layer collected by photography instrument, used Image Pro Plus 6.0 software analyze, obtained white...

This article presents the concept of storing optical energy using a metallic air gap microcavity. Evanescent waves are stored in the air gap of a dielectric/metal/air gap/metal planar microcavity. For an air gap with a micron scale distance between the two metals, incident light excites the optical interface modes on the two metal-air interfaces simultaneously, being accompanied by enhanced eva...

The magnetostrictive microcantilever (MSMC) as a high-performance transducer was introduced for the development of biosensors. The principle and characterization of MSMC are presented. The MSMC is wireless and can be easily actuated and sensed using magnetic field/signal. More importantly, the MSMC exhibits a high Q value and works well in liquid. The resonance behavior of MSMC is characterized...

The effects of cold acclimation (CA) on the cardiorespiratory responses to cold air and water stress tests (CST) were studied in 7 males before and after a CA program of daily 90-min cold water (18 degrees C) immersions repeated 5 times a wk for 5 consecutive wk. The CST consisted of a 90-min resting exposure to cold air (5 degrees C, 30% relative humidity) or water (18 degrees C) during which ...

− Air pollution is a major environmental risk to health causing premature deaths worldwide. In these conditions, the development of reliable and accurate mobile systems that measure the indoor air quality together with other parameters associated with health status of the people working or living in specified spaces represents an important challenge. The paper presents the design and implementa...