Lehmuth S.,Arizona State University |
Lehmuth S.,NASA |
Agrawal P.,Lynbrook High School |
Agrawal P.,NASA |
And 9 more authors.
American Society for Photogrammetry and Remote Sensing Annual Conference 2010: Opportunities for Emerging Geospatial Technologies | Year: 2010
Air quality in the San Joaquin Valley (SJV) has failed to meet federal and state particulate matter (PM) regulation standards for the past several years. While previous studies show strong correlations between the Moderate Resolution Imaging Spectroradiometer (MODIS) derived Aerosol Optical Thickness (AOT) and surface PM measurements on the East Coast of the United States, weak correlations have been found on the West Coast. Specific causes for this discrepancy have not been identified, nor has a solution been found. The Deep Blue algorithm was created in order to correct AOT calculations over arid, non-vegetated regions. Although slight improvements were seen, numbers over California remained problematic. This study aims to understand the poor correlation on the West Coast, specifically in the SJV, by targeting surface reflectance as a factor for the inaccuracy. This will be done by comparing land surface reflectances derived from MODIS Aqua to ground reflectance measurements for the region, in order to examine their correlation. Presumably, an undesirable effect on AOT calculations would occur if these surface reflectance values are imprecise. Results show that there is little correlation between the data sets. MODIS Land Surface Reflectance matched closest to the mixed ground measurements. In all products, the red band (0.620 - 0.670 μm) values vary more than the blue band (0.459 - 0.479 μm) values. Most data seem to fall in a horizontal linear trend line, not the expected 1:1 line.
He H.,Harbin Institute of Technology |
du Z.,Harbin Institute of Technology |
Zhang W.,Harbin Institute of Technology |
Chen A.,Lynbrook High School
Journal of Supercomputing | Year: 2015
As the era of “big data” comes, the data processing platform like Hadoop was born at the right moment. But its carrier for storage, Hadoop distributed file system (HDFS) has the great weakness in storage of the numerous small files. The storage of numerous small files will increase the load of the entire colony and reduce efficiency. However, datasets such as genomic data and clinical data that will enable researchers to perform analytics in healthcare are all in storage of small files. To solve the defect of storage of small files, we generally will merge small files, and store the big file after merging. But the former methods have not applied the size distribution of the file, and not further improved the effect of merging of small files. This article proposes a method for merging of small files based on balance of data block, which will optimize the volume distribution of the big file after merging, and effectively reduce the data blocks of HDFS, so as to reduce the memory overhead of major nodes of cluster and reduce load to achieve high-efficiency operation of data processing. © 2015 Springer Science+Business Media New York
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.
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.
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.
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
Wang T.,China University of Political Science and Law |
Wang L.,China University of Political Science and Law |
Chen T.,Lynbrook High School
Proceedings of 2014 IEEE International Conference on Behavioral, Economic, Socio-Cultural Computing, BESC 2014 | Year: 2014
The Silicon Valley is home to many successful tech companies and is considered the incubator of innovation. The purpose of this paper is to investigate the circumstances and reasons why the Silicon Valley is so prosperous. After grouping tech companies into six major categories, a variety of parameters, such as revenue, profit, andreturn of investment, were used throughout this analysis to determine what factors affect innovation is. Lastly, the analysis is concluded with investigation in other factors that contribute to the prosperity of the Silicon Valley as well as possibilities for future work. © 2014 IEEE.
Tang C.G.,Kaiser Permanente |
Amin S.,Kaiser Permanente |
Schmidtknecht T.M.,Kaiser Oakland Medical Center |
Schloegel L.J.,Kaiser Permanente |
And 2 more authors.
Laryngoscope | Year: 2011
OBJECTIVES: To review the histopathology, presentation, and clinical course of a rare case of lymphoepithelial carcinoma (LEC) of the parotid gland. Case Presentation: A 29 year old female presents from an outside hospital with a 10 month history of an enlarging left facial mass. Work up include a fine needle aspirate (FNA) suggestive of a poorly differentiated neoplasm with spindle cell and epithelioid features. Computed tomography (CT) scan revealed a 4.1 × 2.9 × 3.7 cm mass in the superficial lobe of the left parotid with left cervical lymphadenopathy. The patient received a total left parotidectomy, and a selective neck dissection. Histopathological slides reveal LEC positive for cytokeratin, and Epstein-Bar Virus (EBV). Conclusion: LEC of the parotid is a rare salivary gland tumor accounting for less than 1% of all salivary gland tumors. As reaffirmed in our case, LEC is more common in women, primarily occurs in the parotid gland, and has an ethnic predilection. Histology reveals an infiltrative poorly differentiated tumor nestled in a lymphoid stroma with near 100% EBV positivity in endemic areas. Complete resection of this poorly differentiated carcinoma followed by post operative radiation is essential for local control.
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.