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In this paper, we present a novel approach to separate connected symbols in online handwritten chemical formulas. The proposed method combines both the chemical structural characteristics and online information. The main process can be divided into three stages: preprocessing, location of connected point, and segmentation. In addition, organic ring, a common chemical structure, is much different from...
In the pen-based interactive system, using pen gestures is an important means of interaction. With the development of mobile computing, pen gesture recognition and applications are getting more and more attention gradually. This paper firstly analyses the design principles of pen gestures from the perspective of both users and computers, then designs a set of pen gestures for chemistry teaching. Based...
In this paper, we present an effective approach to link the broken characters in online handwritten chemical formulas. By observing a large number of formula samples, we classify the common broken problems in online handwritten chemical formulas into three types, ldquopoint-likerdquo broken type, liner-type and arc-type. The proposed method combines the strokes characteristic of handwritten chemical...
The restoration of degraded grassland which caused by over-grazing is directly related to land sustainable and economical development in North China. However, it is not well know that the impact of grazing excluding and continuous free grazing on soil properties in this region. In this paper, Soil physical and chemical properties under grazing excluded for 5 and 11 years and free grazing were examined...
65 nm BEOL trench etch is apt to suffer the marginal PR issue. It is a big challenge for trench etch process to simultaneously satisfy the requirements for both metal resistance (Rs) and breakdown Voltage (VBD). The copper surface condition of via bottom is a big concern of trench etch process as well. In this paper, we present several electrical parameter issues that occurred at 65 nm trench etch...
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