Lynbrook High School

San Jose, CA, United States

Lynbrook High School

San Jose, CA, United States
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Zhang W.,Harbin Institute of Technology | Hu Y.,Harbin Institute of Technology | He H.,Harbin Institute of Technology | Liu Y.,Harbin Institute of Technology | Chen A.,Lynbrook High School
Journal of Supercomputing | Year: 2017

A real-time task scheduling system model was analyzed under a heterogeneous multiprocessor platform with task duplication. This analysis focused on the designs and performances of linear and dynamic programming algorithms for real-time task scheduling under a heterogeneous platform with task duplication. Moreover, experimental analyses were performed to evaluate the performances of different algorithms under different conditions. The advantages of the two proposed algorithms were compared under the same situations to discover which one achieves a higher task scheduling efficiency for a heterogeneous real-time system. © 2017 Springer Science+Business Media New York

Liu T.,Lynbrook High School
Proceedings of the International Conference on Industrial Engineering and Operations Management | Year: 2017

In order to grow from its origins in the US North East to the rest of the 47 continental states, Sports Gear Inc depends on the expansion and success of its online store. The success of this expansion depends on the availability of the seasonal goods at the right time, on the knowledge of the exact inventory of the goods, and the cost effective and timely shipment of the goods from the warehouses to customers' homes. In order to maximize item turnover in its brick-and-mortar and online stores, the company needs to be proactive in bringing the right products at the right time to address customer needs. This is especially important during the holiday season as customers will spend most of their discretionary income at that time. Since space in the distribution centers, warehouses, and stores is costly, inventory turnover must be maximized while keeping old inventory, which needs to be liquidated, to a minimum. Finally, as part of a program to keep delivery times to a minimum, the company has planned the locations of distribution centers near large population centers while minimizing the rental and shipping costs through the use of efficient transportation logistics. © IEOM Society International.

Chen M.,Milpitas Christian School | Liu T.,Lynbrook High School
Proceedings of the International Conference on Industrial Engineering and Operations Management | Year: 2017

This project will demonstrate on how to apply Data Mining on detecting the exam cheating pattern. JMP software was utilized to analyze the multi-correlation among 75 students (sit on 25 different tables) taking an assessment exam with multiple choices. Three students from the same table will take the same exam but with different sequence of questions. However, students were smart to synchronize the question sequence immediately. In order to detect the cheating pattern, multivariate statistics was used to determine whether there was any association among the students from the same table. Hierarchical Clustering and Dendrogram Tree can identify the grouping affinity behavior related to exam cheating pattern. Team also used Heat Map to visualize the cheating pattern. To improve the prediction confidence, team also selects the top 20% difficult questions to increase the detection signal-noise ratio to minimize both Alpha and Beta Error below 1%. At such lower level, students won't defend their cases statistically. Based on the results, three tables were identified with cheating patterns. The predictive model was very powerful to analyze complicated cheating patterns. © IEOM Society International.

Liu T.,Lynbrook High School | Chen M.,Milpitas Christian School | Jang J.,Monta Vista High School
Proceedings of the International Conference on Industrial Engineering and Operations Management | Year: 2017

Our team has designed a special game on which we apply Statistics, Probability, and Java to simulate each game move and predict the winning scenario. We applied binomial probability distribution to build a predictive model that could simulate the gaming sequence between two players. The sample size was determined based on two hypotheses: (1) playing sequence and (2) winning patterns. In this project, we identified four winning patterns and used Java to code these patterns and determine the gaming sequence and consequence based on conditional probability. The Java results were then compared to the Predictive Model to conduct objective root cause analysis for further improvement and optimization. Human behavior was also considered to study the beginner level to the more advanced level. Based on the 2-Proportions Tests, team has achieved > 95% confidence that the optimum model can accurately predict the gaming sequence and winning probability which are verified and validated by Java simulation. Team has been through a systematic Six Sigma DMAIC process, and typical Team Building Cycle (Forming, Storming, Norming, and Performing). This is a good STEM Project for teaching kids on learning and applying Statistics, Java Programming, Problem Solving, and Team Building Dynamics. © IEOM Society International.

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.

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.

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.

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