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In this paper, a knowledge exploration assistant system for inquiry-based learning is proposed to support students when inquiry-based learning is conducted. The proposed system provides students with instant assistance with proper knowledge materials and knowledge exploration functions during their learning process. In addition, students' learning history is automatically recorded by the proposed...
There are two sections in support quantitative parameter determination for equipment requirement argumentation, which contains index selection and determination method. The paper analyzes the selections of quantitative parameter firstly, and then makes sure the needs and common process. For the characteristics of representative parameters, the paper builds up a support object model and system model...
Quad Flat non-lead (QFN) packages known with many outstanding properties. However the thermal stresses and plastic strain accumulation in solder joints during temperature and power cycling can be induced due to the significant mismatch in the coefficients of thermal expansion (CTE) of dissimilar materials. The damage caused by these stresses and plastic strain accumulation, which are induced during...
The purpose of this study was to evaluate the effectiveness of using procedural scaffoldings to enhance group discourse levels in a paper-plus-smart phone learning context. Sixty undergraduate and graduate students enrolled at a four-year university in southern Taiwan participated in this experimental study. All participants used built-in camera smart phones to learn new knowledge by scanning QR codes...
The highly sensitive nanowire-based Schottky-gate nanosensors for detecting UV, bio-molecules, and gas sensing were demonstrated. The operating mechanism of the Schottky-gate nanosensors is totally distinct from the conventional Ohmic contacted nanosensors. The Schottky–gated device (SGD) has a few merits in comparison to the conventional Ohmic contacted device (OCD). First, it needs no bio-probe...
The pyrolytic decomposition study of four species of lignocellulosic biomass (pine, poplar, bass and birch) from the Northeast China was carried out by thermogravimetric analysis (TGA) under the temperature range from 30 to 800??C in the N2 atmosphere at four heating rates (??) of 10,20,40 and 60??C/min. The non-isothermal weight loss process of the above biomass samples was mainly composed of dehydration,...
We demonstrate an In0.66Ga0.34As/In0.355Al0.645As strain-compensated injectorless cascade laser; grown by MOCVD, with voltage defect ~30 meV, which is much lower compared to heterogeneous injector cascade laser with 79 meV and conventional cascade laser with 140 meV.
Security screening systems based on imaging technology, like X-ray and gamma-ray based screening systems, are widely used in the field of aviation security. The image quality of the systems reflects detection performance directly. In the paper a set of image quality assessment software based-on human visual sensitivity (HVS) has been developed. The software integrated HVS method in the objective method...
In this paper, the substrate is extracted the material characterization for several capacitor patterns. We design some pads and vias by measuring. The substrate material can be extracted unknown dielectric properties. Then, the new packaging have been designed and completed, it is verified the electrical performance by using EM simulator and save cycle time.
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