Yin C.,Tangshan College
Journal of Chemical and Pharmaceutical Research | Year: 2014
With the fast development of the multi-media technology and network information technology, people have stepped into an age called “MicroAge” with things like microblog, micro film, micro novel, We Chat (micro letter) and many other micro productions. These productions, as tools in new media on the Internet, have had huge and far-reaching impact on the young. The advent of new media provides us a brand new way of the application of college ideological and political education. Under the influence of new media, college ideological and political education faculty has gradually changed their traditional concepts of education, and begins to build a new educational base for college students as well as to create a healthy, civilized and fast campus culture with the education and guidance function of new media. In this paper, we analyze the functions, problems and challenges that new media has in respect of its application in college ideological and political education, and bring up some effective suggestions to its existing problems as well. © 2014, Journal of Chemical and Pharmaceutical Research. All rights reserved.
Wang C.,Tangshan College
Faguang Xuebao/Chinese Journal of Luminescence | Year: 2017
The flame fusion process was put forward to prepare the Yb2+/Yb3+ co-doped silica glass, and the conversion process between Yb3+ and Yb2+ ions was controlled by increasing the auxiliary heating device. The absorption and emission characteristics of the Yb2+/Yb3+ co-doped silica glass prepared with different conditions were studied. Because of 4f14→4f135d1 energy transition of Yb2+ ions, Yb2+/Yb3+ co-doped silica glass prepared with auxiliary heating has stronger absorption intensity and more absorption peak, and the tail of the absorption spectrum extends to the longer wavelength. At the same time, the typical absorption characteristics of Yb3+ ions can also be observed. The emission peak of Yb2+/Yb3+ co-doped silica glass prepared with auxiliary heating locates around 530 nm. The CIE coordinate (0.332 2, 0.476 7) of Yb2+/Yb3+ co-doped silica glass lies within the band of white-light illumination. The results indicate that Yb2+/Yb3+ co-doped silica glass can act as suitable material for white phosphors. © 2017, Science Press. All right reserved.
Dai J.,Tangshan College
MATEC Web of Conferences | Year: 2017
This paper introduces technological design and equipment of hot delivery and hot charge in Tanggang and Steel Co and its notable economic benefit.At the same,the difficulty and problems in realizing hot delivery and charge are point out. © The Authors, published by EDP Sciences.
Zhang Q.,Tangshan College
Polymers and Polymer Composites | Year: 2017
Processing rheological properties of poly(lactic acid) (PLA)/sesbania gum (SG)/nano-silica composites were investigated with a torque rheometer, and mechanical properties were researched by a universal testing machine and a cantilever-beam impact testing machine. Effects of SG content, nano-silica content, the types of plasticisers, the plasticiser content and the rotor speed of a torque rheometer on the properties of composites were discussed. The results indicated that polyethylene glycol (PEG)20000 exhibited the best plasticising effect on the composites, and at the same time, did not increase energy consumption of the systems compared with other four plasticisers. As for the aspect of processing rheological properties, the optimum formulation for PLA/SG/ nano-SiO2/PEG20000 composites was: 100 parts of PLA, 8 parts of SG, 2 parts of nano-SiO2, and 5-10 parts of PEG20000. Comparing with unmodified PLA, the comprehensive mechanical properties of the composites improved greatly, based on the results of the tensile, impact and bending tests. © Smithers Information Ltd., 2017.
Wang C.,Tangshan College
Guangdianzi Jiguang/Journal of Optoelectronics Laser | Year: 2017
The Yb3+-doped silica glass has prepared by the SiCl4 hydrolysis doping and powder melting technology based on high frequency plasma. The large-mode-area microstructure fiber (MSF) is fabricated by stack-drawing technology with the Yb3+-doped silica glass as the fiber core. The core diameter of the fiber is about 130 μm, and the absorption spectrum, emission spectrum, loss characteristics as well as laser characteristics are studied. Using the Yb3+-doped microstructure fiber as the laser gain medium, a fiber laser with the central wavelength of 1 033 nm is obtained with the excitation wavelength of 970 nm by using the laser diode. The maximum output power of the laser is 3.6 W, and the laser slope efficiency is 42.1%.The test results indicate that the Yb3+-doped microstructure fiber fabricated by the hydrolysis process can be used as the potential laser material for the high power fiber laser. © 2017, Science Press in China. All right reserved.
Yang Xiu E.,Tangshan College
Journal of Engineering Science and Technology Review | Year: 2017
Waiting halls of railway stations are typically structured as large-spaced buildings and consume a large amount of energy. This study aimed to explore the effect of the law of thermal properties of waiting hall enveloped in railway stations on building energy consumption and to disclose the energy-saving potential of waiting hall of railway stations. A waiting hall model based on the waiting hall of the Chengdu Railway Station was established using the Quick Energy Simulation Tool (eQUEST). Numerical simulation on energy consumption of waiting hall was conducted by changing the performance parameters of building envelope and area ratio of skylight and sun-shading mode. The influences of thermal properties of building envelope on energy consumption were discussed. Results demonstrate that, when the waiting hall of the railway station applies a glass curtain wall as the envelope, the coated insulting glasses used contribute to the low building energy consumption with an energy saving rate of 5.3%. With the increase in area ratio of skylight, building energy consumption decreases first and then increases. The rate reaches the valley at 20% area ratio of skylight. Sunshading measures on the glass curtain wall and skylight, especially external sun-shading measure, can significantly reduce building energy consumption. The findings provide theoretical basis for building energy efficiency design for the waiting halls of railway stations in regions with hot summer and cold winter, and have important theoretical significance and engineering application value in promoting building energy efficiency design in the said regions. © 2017. Eastern Macedonia and Thrace Institute of Technology.
Zhang Y.,Tangshan College
Journal of Networks | Year: 2012
Based on the security of information transmission through network in the information society, the paper puts forward covert communication technology which is more reliable than the prior encryption algorithm, analyzes channel covertness and information hiding of covert communication technology based on spread-spectrum communication technology, and establishes a covert communication system including image steganalysis, Arnold transformation and scrambling of carrier image, embedding of secret information, generation of encrypted image and recovering of carrier image by image-based covert communication technology. The simulation result shows: in order to ensure there is no serious degrading problem after embedding the secret information, the carrier image must have a large capacity; the larger the scrambling times is, the better the scrambling and encrypting effect is. Therefore, the airspace covert communication algorithm based on spread-spectrum communication technology well achieves safe transmission of information and has good application prospect. © 2012 ACADEMY PUBLISHER.
Guo Y.H.,Tangshan College
Applied Mechanics and Materials | Year: 2014
A granary parameter wireless monitoring system based on Internet is introduced, in which the wireless sensor network is built by using the temperature and humidity sensor and the CC2430 wireless chip, the embedded gateway and the Web server are built by using the embedded ARM chip S3C2410, the system overall structure and hardware circuit and software design are detailed described. In the system, the remote wireless monitoring of grain parameters is realized, users can perform data transmission and monitoring by Internet. The whole system is stable, reliable, low power consumption and it can meet the measurement requirements. © (2014) Trans Tech Publications, Switzerland.
Yang J.,Tangshan College
Jiegou Huaxue | Year: 2014
A theoretical investigation of the reaction mechanisms for C-H and C-C bond activation processes in the reaction of Ni with cycloalkanes C nH2n (n = 3~7) is carried out. For the Ni + C nH2n (n = 3, 4) reactions, the major and minor reaction channels involve C-C and C-H bond activations, respectively, whereas Ni atom prefers the attacking of C-H bond over the C-C bond in CnH 2n (n = 5~7). The results are in good agreement with the experimental study. In all cases, intermediates and transition states along the reaction paths of interest are characterized. It is found that both the C-H and C-C bond activation processes are proposed to proceed in a one-step manner via one transition state. The overall C-H and C-C bond activation processes are exothermic and involve low energy barriers, thus transition metal atom Ni is a good mediator for the activity of cycloalkanes CnH2n (n = 3~7). Copyright © 2013 Editorial Board of Chinese Journal of Structurnal Chemistry.
Wang J.,Tangshan College
Applied Mathematics and Information Sciences | Year: 2012
For supervised discriminant projection (SDP)method, the image matrix data are vectorized to find the intrinsic manifold structure, and the dimension of matrix data is usually very high, so SDP cannot be performed because of the singularity of scatter matrix. In addition, the matrix-to-vector transform procedure may cause the loss of some useful structural information embedding in the original images. Thus, in this paper, a novel method, called 2D supervised discriminant projection (2DSDP), for face recognition is proposed. The proposed method not only takes into account both the local information of the data and the class information of the data to model the manifold structure, but also preserves the useful information of the image data. To evaluate the performance of the proposed method, several experiments are conducted on the Yale face database, and the FERET face database. The high recognition rates demonstrate the effectiveness of the proposed method. © 2012 NSP Natural Sciences Publishing Cor.