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Qiu J.,Beijing Institute of Graphic Communication
World Transactions on Engineering and Technology Education | Year: 2013

Professional skills are important to students who major in physical education (PE). They must be able to conduct the tasks required by the teaching of physical activities. Evaluation of the student's skills can offer a theoretical basis for measuring a PE course, but an effective evaluation method is lacking. Therefore, an evaluation method based on the grey system theory is proposed in this article. First, the educational structure of the PE is discussed; second, the mathematical model of grey system theory is presented; and third, the structure of the professional skills evaluation model of students majoring in PE education is presented. The evaluation index system, the results of which are drawn from a questionnaire distributed to 800 students, and the evaluation programme, is put forward. A case study was carried out, the results of which show that the evaluation method outlined here can contribute to improving overall standards in the course. © 2013 WIETE. Source


In this paper, we report a novel ligand equipped with both electron-pushing moieties and enlarged conjugation planes, 1-benzo[b]thiophen-2-yl-naphthalene- 2-ol (BYNO). Using BYNO as the ancillary ligand, its corresponding Ir(III) complex of Ir(ppy)2(BYNO) (ppy=2-phenyl pyridine) is also synthesized. An efficient deep-red emission peaking at 620 nm with a narrow emission band (full-width-at-half-maximum=65 nm) was finally observed from Ir(ppy)2(BYNO). We discuss the photophysical properties, thermal properties, geometric and electronic structures of Ir(ppy)2(BYNO) in detail. In addition, its electroluminescence performances are investigated and a maximum luminance of 3840 cd/m2 peaking at 618 nm is achieved. All obtained data suggest that Ir(ppy)2(BYNO) is a promising candidate for red-emitting dopants in organic light emitting diodes. © 2010 Elsevier B.V. All rights reserved. Source


Wan S.,Beihang University | Li Y.,Beijing Institute of Graphic Communication | Peng J.,Beihang University | Hu H.,Beihang University | And 2 more authors.
ACS Nano | Year: 2015

Inspired by the ternary structure of natural nacre, robust ternary artificial nacre is constructed through synergistic toughening of graphene oxide (GO) and molybdenum disulfide (MoS2) nanosheets via a vacuum-assisted filtration self-assembly process. The synergistic toughening effect from high mechanical properties of GO and lubrication of MoS2 nanosheets is successfully demonstrated. Meanwhile, the artificial nacre shows high electrical conductivity. This approach for constructing robust artificial nacre by synergistic effect from GO and MoS2 provides a creative opportunity for designing and fabricating integrated artificial nacre in the near future, and this kind of ternary artificial nacre has great potential applications in aerospace, flexible supercapacitor electrodes, artificial muscle, and tissue engineering. © 2015 American Chemical Society. Source


Zhao-qing Z.,Beijing Institute of Graphic Communication
Advances in Information Sciences and Service Sciences | Year: 2012

In order to choose a best training means of the swimmers and improve the training effect of the swimmers and the application of fuzzy comprehensive evaluation method on it is studied in depth. First, the basic procedure of the single fuzzy comprehensive evaluation method is studied. Second, the basic theory of fuzzy comprehensive evaluation method is analyzed, and the mathematical model of the multistage fuzzy comprehensive evaluation method is established according to the disadvantages of the traditional single fuzzy comprehensive evaluation method. Finally, the case study is carried out based on multistage fuzzy comprehensive evaluation method, and the results show that this method had a correctness of the evaluation of the training effect of the swimmers. Source


Li-xin Y.,Beijing Institute of Graphic Communication
Advances in Information Sciences and Service Sciences | Year: 2012

In order to evaluate the health test results of Chinese college students and the application of the fuzzy analytic hierarchy process on it is studied in depth. First, the basic theory of the fuzzy analytic hierarchy process method is analyzed. Second, the numerical analysis of evaluating the college students test results based on the fuzzy analytic hierarchy process is carried out, and the five aspects of the college students' health are sorted according theirs importance. And the results show fuzzy analytic hierarchy process is feasible in evaluating the health test results of the Chinese college students, and is advantageous to a reasonable way to test the healthy of college students. Source

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