Digital Commons Network^™

Intelligent Collaborative Networking Method For Workshop Emergencies, Kong Tao, Wang Yan

Journal of System Simulation

Abstract: Due to the complex environment of intelligent manufacturing workshop, abnormal emergencies will cause huge security threats and economic losses to the workshop. It is difficult to transmit the abnormal event data continuously, quickly and completely in the workshop production site, and the fluctuation of abnormal event data is great with high requirements on the integrity and real-time of data transmission. In this paper, a multi-agent cooperative networking method for workshop emergencies is proposed. Mobile robots are introduced as intermediary Sink nodes for data transmission between sensor networks and the Internet. In case of emergencies, the intelligent node and cluster …

Modeling Indoor Environment With Kinect, Lianrui Xu, Jinming Zhang

Journal of System Simulation

Abstract: To solve the problems of point cloud noise, depth data mismatching and local details prone to hollowing in the process of Kinect camera reconstruction of indoor three-dimensional environment. By improving the assignment method of depth image pixel and the threshold relationship of time frame matching, this paper denoises the point cloud with optimizing mean filtering and time frame weighting methods. Combined with recent iteration algorithm (Iterative Closest Point, ICP) to complete the adjacent point cloud splicing so that it can achieve completely indoor model to build 3D environment. To test the validity of the algorithm, the experiment of …

On Operational Experiment Systematization, Xiaogang Qiu, Duan Hong, Bin Chen

Journal of System Simulation

Abstract: With the complexity of military simulation object, the way of operational experiment is changing. Based on the discussion of operational experiment requirements, we first present the concepts, objectives, requirements, ideas and related technologies of operational experiment systematization, discuss the requirements, objectives and tasks of the construction of the operational experiment system and point out that simulation engineering in military field is the basis of efficient systematic operational experiment. After that, we describe the concept of domain simulation briefly, and analyze the work needed to be carried out in military simulation engineering from the perspective of sharing the results of …

Evaluation Method Of Node Importance In Equipment Support Network Based On Polymeric Degree, Zhang Qiang, Junhai Cao, Tailiang Song, Yan Xu

Journal of System Simulation

Abstract: Aiming at the problem that the heterogeneity of nodes in equipment support network and the different support relationships leading to the inaccuracy of judging the importance of nodes based on single attributes such as degree value, this paper puts forward the concept of polymeric degree, and mines the importance information of nodes from the aspects of polymeric degree, betweenness centrality, closeness centrality and Eigenvector centrality. Because of the shortcoming that the Euclidean distance can not reflect the vertical distance in the traditional method of Order Preference by Similarity to an Ideal Solution (TOPSIS), the TOPSIS method is improved. The …

Comparative Study On Resistance Modeling Method In Yacht Simulator, Xiaochen Li, Yin Yong

Journal of System Simulation

Abstract: In order to solve the problem that the existing resistance modeling method of yacht has poor universality and the calculation accuracy is not high, approximate resistance modeling methods of high speed craft are analyzed and summarized. The actual yacht model is simplified into a prismatic hull. “ЦАГИ” method and SIT method are reproduced and the simulation results are compared with model test. The application of resistance approximate modeling in the yacht simulator is discussed. The results reveal that the resistance is in good agreement with the experimental value, and the SIT method with simplified hull form is more …

Evaluation Method Of Simulation Results Based On Principal Component Analysis, Rusheng Ju, Zimin Cai, Yang Mei, Wang Song

Journal of System Simulation

Abstract: A large amount of result data are produced by complex system simulation. These data types are diverse and complex. Usually they cannot be used directly. The inner pattern can only be found by effective evaluation. Based on the characteristics of complex combat simulation results, this paper utilizes the Principal Component Analysis method to reduce the dimension of data analysis and explore the relationship between the system input data and output data. The key influence factors of the measure of force effectiveness is found. The application verification is done by typical examples. The selected principle factors are explored in …

Noise Clipping Algorithm Based On Relative Contribution Rate, Shuoyu Liu, Yueming Dai

Journal of System Simulation

Abstract: This paper presents a class noise cutting algorithm (Class noise cutting, CNC) based on relative contribution rate. The algorithm calculates the relative contribution rate of features to the theme. The most valuable feature set is selected by using features distinguish rating. The corresponding candidate categories for each feature are selected, to reduece the candidate category set, improves the classification accuracy, and speed up the response speed of the classifier. Compared with another ECN noise cutting algorithm (Eliminating the class whose), CNC-has higher accuracy and because of its simpler feature dimension dictionary and better candidate category set, the response …

Study On Data-Driven Orca Preference Velocity, Wang Jie, Bin Chen, Yuan Peng, Ma Liang, Xiaogang Qiu

Journal of System Simulation

Abstract: Crowd evacuation is an important aspect of emergency management. Because of economic and safety reasons, emergency evacuation drill cannot be carried out repeatedly, however modeling and simulation has the obvious advantages of low cost, high repeatability, etc. Optimal Reciprocal Collision Avoidance (ORCA) is a velocity-based Collision Avoidance method, which has fine granularity and high computational efficiency, and is widely used in robot collision avoidance and other domains. In this paper, ORCA is introduced into crowd evacuation simulation, and the optimal parameters of ORCA under different kinds of speed strategies are identified by data-driven method. The optimal strategy …

System Dynamics Modeling For Simulation Of Water Supply And Demand Relationship In Beijing, Longxi Luo, Jianping Wu, Chen Yun, Zhe Xu

Journal of System Simulation

Abstract: Beijing is a metropolis and the center of politics and education of China. However, located in the region with a low level of rainfall, Beijing has been struggling with supplying water resources to meet its growing demand. The past and future trend of the water supply and demand balance in Beijing is studied. Historical data is collected and compiled for learning its past behaviors. The system dynamics (SD) modeling can simulate the complicated and integrated relationships in water supply and demand system. An SD model is then constructed based on compiled historical data. The SD model is validated by …

Intelligent Sandbox For Geography Teaching, Xianli Ji, Yulong Ding, Shuanghua Yang

Journal of System Simulation

Abstract: An intelligent sandbox geography teaching demonstration system combining the augmented reality technology and related geographic knowledge is designed and implemented on the Unity3D platform. The system has functions of deep data processing, projection matrix transformation, terrain rendering, fluid simulation, physical characteristics, adding entities along the slope, changes in sunshine angle, gesture interaction, etc., which can render virtual terrain and scene in real time according to the change of the sandbox. Students can interact with the system in projection correction, adding entities, seasonal switching, weather effects, disaster simulation and other scenarios and learn knowledge points such as contour lines, …

Spatiotemporal Mode Analysis Of Urban Dockless Shared Bikes Based On Point Of Interests Clustering, Zhang Fang, Bin Chen, Yanghua Tang, Dong Jian, Chuan Ai, Xiaogang Qiu

Journal of System Simulation

Abstract: The city’s dockless shared bikes have developed rapidly, and its features of convenience, economy and efficiency have been widely welcomed. The digital footprint they generate reveals the movement of people in time and space within the city, which makes it possible to quantify the activities of people in the city using shared bikes. In this paper, based on the collected shared bikes data of Beijing, a clustering method based on the point of interests is proposed to divide the urban space, so as to construct a mobile network of urban shared bikes, and analysis the spatiotemporal mode of bike …

Cooperative Vehicle Positioning Method Based On V2x Enhanced Gps, Jiuling Wang, Shaobo Wu, Yuanli Zhang, Jiahui Qiu, Liu Qi

Journal of System Simulation

Abstract: In order to further improve the vehicle positioning accuracy and adaptability to the environment, V2X (vehicle to everything) communication network is used for auxiliary positioning to enhance the GPS/DR integrated positioning. Firstly, the three subsystems of GPS, DR and V2X auxiliary positioning independently perform filtering estimation, and then a better estimation from the GPS and V2X auxiliary positioning is selected to conduct global optimal fusion with DR, and finally the three sub-filters are reset with the feedback of the optimal result. Simulation results show that when the GPS signal is seriously affected by multipath interference, the positioning performance of …

Someday We'll Look Back On This And Laugh, Ben Masten

Capstones

The People's Improv Theater was an oasis for young New York comedians. Its own success-- and a volatile owner-- changed that. Project contains a narrative journalism piece and an an audio documentary.

Full Project here: https://medium.com/@benmasten/someday-well-look-back-on-this-and-laugh-e6b1dc8468db

Whatever Happened To The Movie Theme Song?, Luka Vasic

Capstones

Film music is as important as it’s ever been and a good theme song can absorb you into the world of a movie. Despite this, our idea of the theme song has changed a lot, and the kinds of themes that have traditionally been memorable parts of classic cinema have now lost their importance and role in modern filmmaking.

http://lukavasic.com/capstone/

Not Just Yet: Despite Grinding It Out In Silicon Valley, Asians Are Least Likely To Lead Big Tech Companies, Karishma Vanjani

Capstones

Silicon Valley has long been known for the paucity of African-Americans and Hispanics in its ranks, but equally telling is the fact that the vast majority of Asians hired for non-managerial jobs are not moving up to management. The lack of diversity in the upper echelons of the companies is due in part to the maddening stereotype that Asians are too passive. White managers mentoring and supervising Asian employees face a wide gap in understanding cultural disparities. For the companies, though, tightening immigration policies can become barriers when they consider promoting Asians in the country on work visas.

https://karishmavanjani.com/writing/not-just-yet-despite-grinding-it-out-in-silicon-valley-asians-are-least-likely-to-lead-big-tech-companies/?_thumbnail_id=610

The Rockaway Project - Townes, Diara Jepris D. Townes

Capstones

The Rockaway Project is a story-driven website that provides information on the government response to Superstorm Sandy recovery on the Rockaway peninsula in Queens, New York. Dozens of climate resiliency projects have been delayed or remain unfinished, despite millions of dollars in funding and six years of promises. The website hosts audio, visual and digital content, gathered through interviews and data collection.

Link to capstone project: https://www.youtube.com/watch?v=fAq2BeR4bS0&t=1s

The Miss America Pageant Should Restore Prioritizing The Evening Gown Segment, Keishel Williams

Capstones

Evening gown in pageants, as in society, has always represented a woman's way of expressing her personality and femininity through fashion. Miss America's attempt to stop requiring evening gowns implies that wearing formal gowns does not equate to being a modern, empowered woman.

Instead of attempting to erase the evening gown as an outdated part of a modern woman’s wardrobe, the Miss America pageant should restore the original gown segment and use this opportunity to reshape America’s perspective on how modern women can choose to wear gowns and still be empowered.

https://keishelawilliams.wordpress.com/

Using Engagement Journalism To Serve The Needs Of Caregivers Of People With Autism, Ariam Alula

Capstones

I’m Ariam. I worked with a diverse group of families who are intimately impacted by the autism spectrum disorder and other disabilities through caring for a loved one with the diagnosis. During the program, I used my journalism education, advocacy work, and interpersonal skills to support the emotional and informational needs of the community. The majority of the caretakers I engaged over the duration of the program reside in the Bronx, my home borough. I chose to focus on the lived experiences of people in this community because they represent my own. I have an older brother on the spectrum …

A Little-Known Law Moves Money Into America’S Low-Income Neighborhoods — But For Whose Benefit?, Emily S. Lever

Capstones

The Community Reinvestment Act of 1977 (CRA) is a federal financial regulation that was passed as a response to redlining, meaning the systematic denial of investment to poor and working-class communities and communities of color. The legislation rewards banks for making loans in low-income census tracts. But while CRA commitments drive investment to community development projects, it may also reward predatory or speculative investments whose recipients happen to be located in low-income communities.

The Mta Tried To Improve Outer Borough Bus Service, But They've Only Made It Worse, Adwait Patil

Capstones

The MTA Bus Company introduced articualted, or twin-carraige, buses on three high-volume routes that connect the outer-boroughs to key locations in order to save money and improve service. Since then, commuters say service has only gotten worse and they think agency just doesn't care.

(https://adwaitadwait.github.io/project/)

Disability Artistry Is Not Outsider Art, Hiram A. Durán

Capstones

"Disability Artistry is Not Outsider Art" explores the obstacles artists with disabilities face in trying to go mainstream.

https://hiram-alejandro-duran.format.com/capstone

The Battle For Bushwick, And Beyond: Inside The Radical Grassroots Movement To Reshape Urban Planning In New York City, Chase Brush

Capstones

Mi Casa No Es Su Casa, Take Back The Bronx, Northern Manhattan Is Not For Sale -- in neighborhoods all across New York City, a movement is afoot to take back community control of the urban planning process. These groups and others, faced with increasing gentrification in their own neighborhoods, are fighting back against city-led rezonings that they say would further exacerbate the displacement of longtime residents. Among those leading the charge is Mi Casa No Es Su Casa, a team of social justice activists using the tools of radical grassroots organizing to oppose a slate rezoning of Bushwick, a …

Clemency Gives A Renewed Sense Of Hope To A Man Incarcerated For 39 Years, Annie Todd, Stephanie Chukwuma

Capstones

Paul Clark has spent the past 39 years incarcerated in New York prisons. He was 19 when he first went inside because he murdered a 17-year-old at an East Flatbush summer block party. A few years later, 25 years was added to his sentence for a crime he says he never committed. He's asked Governor Andrew Cuomo for clemency in 2019.

https://medium.com/@annietodd203/clemency-gives-renewed-sense-of-hope-to-man-incarcerated-for-39-years-44a8ee58db2e

All Our Hearts: Sharing Stories Of Love, Grief And Hope From The Opioid Crisis, Lena R. Camilletti

Capstones

In October 2018, Maddie Linsenmier died as a result of opioid-use disorder. Her sister, Kate O’Neill, wrote an incredibly humanizing obituary, which was published in Seven Days, and went viral. Individuals from all over the world were commenting on the obituary, sharing their own stories of people they love and lost as a result of opioid-use disorder.

As a result, in January 2019, Seven Days hired Kate O’Neill to write a year-long series called Hooked: Stories and Solutions for Vermont’s Opioid Crisis. And Seven Days deputy publisher Cathy Resmer proposed a related project: an online memorial that would allow …

How New York City Is Failing Students With Special Needs—And Why Minority Kids Have It The Worst, Pamela Subizar

Capstones

Under federal law, children are guaranteed free, appropriate education, but reports have found failures at every level of the New York City special education system. Despite some improvements by the city in recent years, initial evaluations are still delayed, and mandated services go unprovided. Complaints filed against the city have multiplied. Thousands of parents have to sacrifice savings and time fighting for better services. This report describes the particular challenges faced by minority families using data analysis, interviews with experts, and stories.

Latino students depend on these public services the most—they represent half of NYC students in special education programs. …

Violin Bow-Hand Prosthetic, Ron Hayes Jr, Kc Cook, Romario Lobban, Muriel Drexler

Mechanical Engineering Design Project Class

The violin bow-hand prosthetic aims to mimic the natural hold and motion of a violinist’s bow-hand. The prosthetic is for a violinist who is missing the majority of their hand, but still has full range of motion in the wrist. Focusing on maintaining a natural playing style greatly influenced the design of the device to be user safe, durable, comfortable, easy to use, inexpensive, and practical. Many of these features were achieved by using 3D printed plastic and foam composites. These materials were selected based on strength and deflection analyses of 3-D simulations performed in SolidWorks and the ease of …

T-Shirt Strip Dispenser, Maxwell Dimgba, Syeda Mohsin, Sabrina Nguyen

Mechanical Engineering Design Project Class

There is a massive amount of waste around the textile industry. New garments are constantly being made and old garments are consistently finding themselves in landfills. This project aims to cut down on this waste. Mary Susan RuppertStroescu of the Sam Fox School at Washington University in St. Louis has developed a process to turn old garments into new ones in a practice known as up-cycling. By cutting old garments into half-inch strips, laying and adhering them flat on a sheet of dissolvable paper, and sewing over them in interesting patterns she is able to create extraordinary new designs. This …

Violin Bow-Hand Prosthetic, Jonathan Smith, Jonathon Azziz, Shawn Pavey

Mechanical Engineering Design Project Class

The violin bow hand prosthetic was designed for a young violin player seeking to upgrade the functionality of his current violin prosthetic device. His current device is rigid, forcing him to play mostly with his shoulder. Since the strength of his wrist was unknown, we designed a prosthetic with enough brace flexibility to enable the user to control the bow motion with his own wrist. We also added an axis of rotation and spring mechanism to supplement this motion and provide him the equivalence of fine finger adjustments. The full design process of the prosthetic is documented in this report, …

Group M: Arliss Canister Vehicle, Greyson Bourgeois, Eleanor Macklin, Romail Dawani, Rachel Sample

Mechanical Engineering Design Project Class

This project is a dicycle designed for the ARLISS Canister Competition. In this competition, the device is loaded into a rocket which is then launched to about 12000 ft before releasing the device. Then it must safely land and autonomously navigate to a predetermined GPS location on the ground. Due to the fact that this is a mechanical engineering design project and the time restrictions of this class, we focused on the physical aspect of the project, such as building a device that can survive the launch and landing and traverse several kilometers through the desert, forgoing the autonomous navigation …

Heart Failure Readmission And The Physical Activity Vital Sign (Pavs): Is There A Relationship?, Jacob Aaron Barlow

Theses and Dissertations

Background - Heart failure costs Americans billions of dollars a year and takes a toll on the patients afflicted by the disease. Recent changes in how healthcare systems and providers are reimbursed have motivated them to find new ways to prevent heart failure readmission. There is no cure for heart failure so healthcare providers try to help patients manage their symptoms. Physical activity is one of the interventions healthcare providers recommend for their patients in the management of heart failure. The Physical Activity Vital Sign is a tool that can be quickly administer and has significant validity. Objective - The …