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Li R.,Guangxi University | Zhong Y.,Lynbrook High School | Huang C.,Guangxi University | Tao X.,Guangxi University | Ouyang Y.,Guangxi University
Physica B: Condensed Matter | Year: 2013

In this work the surface energies of Al with different miller indices were calculated with an analytic long-range interaction embedded atom potential. The vacancy formation and migration energies of surface for Al (1 0 0), (1 1 0) and (1 1 1) planes were also calculated. The results show that the close-packed (1 1 1) surface has the lowest surface energy and the (1 1 0) surface has the largest surface energy. There is a significant difference among the vacancy formation energies between the different surfaces. The vacancy formation energy of the (1 1 1) surface is the highest, while that of the (1 1 0) surface is the lowest. This is consistent with the results of other theories. The Al self-diffusion by the vacancy mechanism and adatom mechanism on the surface is easier than that in the bulk. © 2013 Elsevier B.V. Source


Abaid N.,Virginia Polytechnic Institute and State University | Bernhardt J.,Lynbrook High School | Frank J.A.,New York University | Kapila V.,New York University | And 2 more authors.
Mechatronics | Year: 2013

Recently, mobile devices such as Apple's iDevices have acquired the ability to host a variety of functions beyond merely initiating and receiving telephone calls. These devices have great potential for educational applications, especially when integrated with disparate technologies, such as environmental sensors, microscopes, and robotics. In this work, we present the development of an iDevice application and communication hardware for interacting with a miniature robotic fish. The application includes a user interface for controlling the robot's motion, a detailed tutorial featuring an animated fish, and a link to information about scientific research using the robot. This platform has been field-tested with children in a broad age range and refined based on their feedback. The application has been found to be significantly easier to use than a traditional joystick controller by a survey of middle school children. © 2013 Elsevier Ltd. All rights reserved. Source


Zhang K.,Jilin Agricultural Science and Technology College | Deng Q.,Beihua University | Liu J.,Lynbrook High School | Jiang S.,Jilin Agricultural Science and Technology College | And 6 more authors.
Shengtai Xuebao/ Acta Ecologica Sinica | Year: 2012

To investigate the color preference of Great Tit in nest-box selection and its impact on reproductive efficiency, experiments were conducted by hanging black, blue, green, white, and red nest-boxes in Zuojia Natural Reserve, Jilin Province, from March to July in each year of four consecutive years (2007-2010). Occupancy status of the boxes and reproductive parameters of the birds were recorded and analyzed. Occupancy rate of red boxes was compared to the average of the boxes in other colors pooled together. The occupancy rate of red nest-boxes was significantly higher than the average of all other colors combined for year 2007 (χ 2 =5. 51,df =1,0. 01 Source


Jo Y.,Dongguk University | Kim J.,Dongguk University | Woo H.,Dongguk University | Kim D.,Dongguk University | And 4 more authors.
Current Applied Physics | Year: 2014

We have investigated the role of the metal/oxide junction interface on the resistive switching (RS) characteristics in WO3+x films. The WO x films are fabricated on Pt substrates by magnetron sputtering at room temperature. Top metal contact (Au or Al) is fabricated by using thermal evaporator. The thicknesses of WOx films and top electrodes are 1 μm and 200 nm, respectively. It has been found that the bi-polar RS direction is dependent on the choice of top metal electrode, Au or Al. The sample with a Au top electrode shows clockwise (CW) RS mode whilst the sample with a Al top electrode shows counter-clockwise (CCW) RS mode. The on/off ratio is 10 times for Au/WOx/Pt and 100 times for Al/WOx/Pt. The bi-polar RS modes are modeled in terms of the difference in the electronegativity of the top and bottom electrodes. © 2013 Elsevier B.V. All rights reserved. Source


Chen Y.,Lynbrook High School
IEEE Radiation Effects Data Workshop | Year: 2013

Neutron exposures on smartphones running music and video applications are conducted. Detailed analysis of the waveforms was performed to identify any additional errors. Test setup, data collection, and detailed experiment methodology are discussed. © 2013 IEEE. Source

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