Physical Sciences and Mathematics Commons^™

Oxides And Heavy Metals Concentration Around A Cement Plant At Yandev, Central Nigeria, Fanan Ujoh Ph.D, Muhammad Mamman Alhassan Ph.D

Dr. Fanan Ujoh

Aims: To determine the level of concentration of oxides (chemicals) and heavy metals in 6 soil samples. To further compare the results with acceptable soil quality standards to ascertain the status of soil quality within the study area. Study Design: Collection and analyses of soil samples from the vicinity of Dangote Cement factory, Yandev. Place and Duration of Study: A total of 6 soil samples were collected: using a 2-kilometer interval, five samples were collected within the study area starting from the center of the Cement factory while the sixth soil sample was collected from a Control Community (Tarhembe) located …

Constraint Satisfaction Problem: A Generic Scheduler, Ben Carpenter, Brent Weichel, Jeremy Straub, Eunjin Kim

Jeremy Straub

The task was to create a scheduler that would create a schedule that gets as many of the tasks done as possible while maximizing the total value of the tasks performed. Each task was assigned a value, a priority, and a duration. Each task also had certain times that they could be run, so they couldn’t just be run at any point where they fit. We decided that in order to get a more accurate ordering for the process, we would take the value divided by the duration that way we were less likely to skip over processes that ran …

Dynamic Task Scheduling Problem: Greedy Knapsack Solution, Christian Sandtveit, Darrin Winger, Jeremy Straub, Eunjin Kim

Jeremy Straub

The problem that we worked with was a dynamic scheduling problem. For this problem, we are given a set of tasks to be scheduled in an allotted time slot, so that the total value of the tasks done is maximized. Each task has a duration, value. Each task also has one or more periods in which they can be scheduled. Some tasks can have conflicting time slots that can prevent other tasks from being scheduled. As tasks are assigned time slots it is possible to prevent other tasks from being as-signed a time slot. Looking for ways to minimize the …

Medical Rate Setting: Multi-Curve Approximation And Projection, Darrin Winger, Christian Sandtveit, Jeremy Straub, Eunjin Kim

Jeremy Straub

In order to maximize profit, our approach was to maximize the difference between total revenue and total cost, where total revenue would be larger than total cost. In the problem we are given a series of points, which relates price, cost, profit and quantity. We can calculate the total revenue by multi-plying the price with quantity, and the total cost by multiplying the cost with the quantity. Total profit is calculated by multiplying profit and quantity. We are given 4 initial points, and based on those 4 points we will calculate the point where the profit is currently maximized. Based …

Development Of A Ground Station For The Openorbiter Spacecraft, Jacob Huhn, Alexander Lewis, Christoffer Korvald, Jeremy Straub, Scott Kerlin

Jeremy Straub

The OpenOrbiter Small Spacecraft Development Initiative[1] at the University of North Dakota is working to design and build a low cost[2] and open-hardware / opensource software CubeSat[3]. The Ground Station is the user interface for operators of the satellite. The ground station software must manage spacecraft communications, track its orbital location , manage task assignment, provide security and retrieve the data from the spacecraft. This will be presented via a graphical user interface that allows a user to easily perform these tasks.

Task Scheduling Problem: Using The Most Constrained Variable Algorithm To Maximize, Jaeden Lovin, Calvin Bina, Jeremy Straub, Eunjin Kim

Jeremy Straub

For this constraint satisfaction problem we needed to schedule a series of tasks to run in a certain order. Each task has a set duration that it must run for and a domain of times during which it can run during. Each task had a value and the goal of the problem was to pick times for the tasks to run in or-der to maximize the total value. We thought of multiple ways to potentially approach this problem, and decided to use some form of the least constraining variable. We would choose the task with the least constraints on other …

Medical Rate Setting Problem: Using The Hill-Climbing Search To Maximize Health Care Provider Profit, Calvin Bina, Jaeden Lovin, Jeremy Straub, Eunjin Kim

Jeremy Straub

Our program for calculating the optimal price for a service is relatively simple, but it gets great results. We make use of quadratic regres-sion. Quadratic regression has a very similar concept to linear regression. Given a set of data points, we find the equation that is the best fit to represent those data points. With linear re-gression, our resulting equation is linear. How-ever, with quadratic regression, our end result is a quadratic equation. We have two quadratic equations to come up with. One is our cost function and the other is our units sold func-tion. Both of these equations are …

Classroom Polling Software For Use With Mobile And Web-Based Devices, Nick Renford, Jeremy Straub, Scott Kerlin

Jeremy Straub

The goal of this project is to create an interface for Android, iOS, and Win-dows Phone smartphones, as well as a web interface that will act as a “clicker”. The instructors will be able to send out questions, and the students will be able to answer the questions, and get feedback if the instructor wants them to have it. The teacher can decide whether the feedback is instant or manually initiated, and what format the response will be, whether it includes the correct answer, and what type of chart, if any, indicating the most com-monly selected answer(s). There will be …

Update On The Operating Software For Openorbiter, Dayln Limesand, Christoffer Korvald, Jeremy Straub, Ronald Marsh

Jeremy Straub

The operating software team of the OpenOrbiter project has been tasked with developing software for general spacecraft maintenance, performing mission tasks and the monitoring of system critical aspects of the spacecraft. To do so, the team is developing an autonomous system that will be able to continuously check sensors for data, and schedule tasks that pertain to the current mission and general maintenance of the onboard systems. Development in support of these objectives is ongoing with work focusing on the completion of the development of a stable system. This poster presents an overview of current work on the project and …

Web-Based Student Peer Review: A Research Summary, Edward F. Gehringer

Edward F Gehringer

Interest in Web-based peer-review systems dates back nearly 20 years. Systems were built to let students give feedback to other students, mainly to help them improve their writing. But students are not necessarily effective peer reviewers. Left to their own devices, they will submit cursory reviews, which are not very helpful to their peers. Techniques have been developed to improve the quality of reviews. Calibration is one such technique. Students are asked to assess samples of writing that have previously been assessed by experts. Students must submit an evaluation “close enough” to the experts’ before they are allowed to review …

Radiation From Oil Fields, Godwin Bassey Ekong

Godwin Bassey Ekong

The determination of radionuclides from Qatarian oil fields using Hyper Pure Germanium detector, radiological assessment of their exposures pathways were studied to ascertain Activity Concentrations of 235,238U, 232Th decay series and 40K from samples. Specific ranges of AC in 235,238U, 232Th and 40K were found to be (19.1± 2.0-54.5± 4.1)Bqkg-1, (3.1± 0.7-9.9± 1.3)Bqkg-1and (101.8± 4.0-326.4± 4.6) Bqkg-1, these values were compared with global average of UNSCEAR (2000). Gamma dose rate at 1m was (28.8± 1.9)nGyh-1; (35.3± 2.3 and 141.2± 9.2) μSv for outdoor/indoor Annual Effective Dose Equivalent; (44.9± 3.5) Bqkg-1 for Radium equivalent and (0.16± 0.01and 0.25± 0.02)mSvy-1 for External/Internal …

Non-Isothermal Reduction Of Silica-Supported Nickel Catalyst Precursors In Hydrogenation Atmosphere: A Kinetic Study And Statistical Interpretation, Zeljko D. Cupic

Zeljko D Cupic

No abstract provided.

Phone And Web Based Clicker Project, Nick Renford, Jeremy Straub, Scott Kerlin

Jeremy Straub

The goal of this project is to create an interface for Android,

iOS, and Windows Phone smartphones, as well as a web

interface that will act as a “clicker”. The

instructors will be able to send out questions, and the

students will be able to answer the questions, and get

feedback if the instructor wants them to have it. The teacher

can decide whether the feedback is instant or manually

initiated, and what format the response will be, whether it

includes the correct answer, and what type of chart, if any,

indicating the most commonly selected answer(s). There

will be …

Openorbiter Ground Station Software, Alexander Lewis, Jacob Huhn, Jeremy Straub, Travis Desell, Scott Kerlin

Jeremy Straub

The OpenOrbiter Small Spacecraft Development Initiative[1] at the University of North Dakota is working to design and build a low cost[2] and open-hardware / opensource software CubeSat[3]. The Ground Station is the user interface for operators of the satellite. The ground station software must manage spacecraft communications, track its orbital location , manage task assignment, provide security and retrieve the data from the spacecraft. This will be presented via a graphical user interface that allows a user to easily perform these tasks.

A Raspberry Pi-Based 3d Scanner, Cam Peterson, Pann Ajjimaporn, Jiaoni Wang, Jeremy Straub, Scott Kerlin

Jeremy Straub

This poster presents work on building a 3d scanner. A 3d scanner is a device that analyzes a real-world object to collect data on its shape and or appearance. The collected data can then be used to construct digital 3d models. The scanner is made up of 50 Raspberry Pi computer boards and cameras. We will construct 12 arms each holding four cameras per arm. The purpose of this is to be able to scan anything and produce a 3d model that we then would be able to send to the 3d printer or use in a video game or …

The Use Of Solar Balloons At Und As A Low-Cost Alternative To Helium Balloons For Small Spacecraft Testing And Stem Education, John Nordlie, Jeremy Straub, Chris Theisen, Ronald Marsh

Jeremy Straub

Helium-filled latex weather balloons have been utilized for many years to carry small satellite prototypes and subsystems into the stratosphere to allow testing in a “near space” (stratospheric) environment. A variety of environmental factors similar to the space environment can be found in this region, such as a rarified atmosphere, increased thermal stress including very low temperatures, increased solar radiation, the necessity of remote command and control, tracking, and telemetering of data. While this method of flight testing has been well-proven, a recent increase in the price of helium has driven the cost of such test programs to much higher …

Evolution Of The Software Defined Radio (Sdr) For The Open Orbiter Project, Michael Wegerson, Jeremy Straub, Sima Noghanian

Jeremy Straub

Software Defined Radios (SDRs) are an exciting development in radio technology. The SDR uses software to perform many of the tasks that only hardware could previously complete on a traditional analog radio. Such tasks include encoding/decoding or applying filters to reduce noise on the signal. This powerful fusion of software and hardware have allowed SDR to be smaller in size and have a greater functionality than traditional radio setups; a perfect solution for our Open Orbiter satellite. Currently, the implementation we use consists of a simple $20 USB TV decoder for receiving, a Raspberry Pi micro-computer for transmission, and the …

The Use Of The Roofsat For Computer Science And Engineering Education, Jeremy Straub, Ronald Marsh

Jeremy Straub

This poster presents an overview of a tool that has been created to provide students with real-world experience in the design, development and operation of control and scientific mission software for a cyber-physical system. The ROOFSAT, developed at UND, is a low-cost analog for a small spacecraft (though in many ways these capabilities also enable similar UAV work). The ROOFSAT was constructed with approximately $1,500 generously provided by the John D. Odegard School of Aerospace Sciences out of commercially-available parts. It includes multiple cameras, a pan-tilt mount and the same space-qualified computer hardware which has been used on both spacecraft …

Software Group Of The Openorbiter Project, Christoffer Korvald, Jeremy Straub

Jeremy Straub

This poster provides an update regarding software development work for the OpenOrbiter project. The software development effort for the OpenOrbiter project currently consists of four teams: payload software development, operating software development, ground station software development and testing. The teams are designing and developing the software needed to create and operate a small spacecraft which can be produced for under USD $5,000 by students, faculty and others around the world. Participating students are gaining valuable real-world experience through the process of designing and developing the spacecraft. Each team is headed by a team lead that is responsible for conducting weekly …

Assessment Of Pollutants In Streams Around A Cement Plant In Central Nigeria, Fanan Ujoh Ph.D, Muhammad Mamman Alhassan Ph.D

Dr. Fanan Ujoh

The study assessed the chemical and heavy metals content in surface water samples collected at 9 points from 3 different streams within a radius of 5 kilometers to the factory, and an additional control water sample collected from a stream at Tarhembe, 12 kilometers from the factory. Laboratory analyses were conducted for 18 parameters, while mean, maximum and minimum values, and standard deviation for all parameters tested were derived using SPSS Version 15. Using the WHO (2011) Guidelines for Drinking Water, the concentration levels of pollutants in water samples were determined for all 18 parameters to establish whether or not …

Interpretation And Prediction Of A Logistic Model, Joseph M. Hilbe

Joseph M Hilbe

A basic overview of how to model and interpret a logistic regression model, as well as how to obtain the predicted probability or fit of the model and calculate its confidence intervals. R code used for all examples; some Stata is provided as a contrast.

The Association Between Aircraft Fleet Variety And Fuel Efficiency, Matthew J. Judd

Matthew J. Judd

One consideration for aircraft operators is how to have the most efficient fleet composition. Fleet makeup could be a diversified fleet makeup or a standardized fleet makeup. The decision is important because it shapes the way the fleet is operated. I examined the effect of aircraft type variety on fleet-wide fuel efficiency. The research hypothesis was that a varied fleet is more fuel efficient than a homogenous fleet. The hypothesis was tested through an analysis of academic and government literature and data. A correlation analysis through evaluation of scatterplots between number of aircraft types and fuel use per seat mile …

Critical Considerations For Developing Mis For Ngos, Umakant Mishra, Kailash Chandra Dash

Umakant Mishra

Although Information Systems and Information Technology (IS & IT) has become a major driving force for many of the current day organizations, the NGOs have not been able to utilize the benefits up to a satisfactory level. Most organizations use standard office tools to manage huge amount for field data and never feel the need for a central repository of data. While many people argue that an NGO should not spend too much money on information management, it is a fact that organizing the information requires more of a mindset and an organized behavior than a huge financial investment.

Extending The Orbital Services Model Beyond Computing, Communications And Sensing, Jeremy Straub

Jeremy Straub

An orbital services model has previously been proposed which is conceptualized in terms of providing orbital services related to a remote sensing mission, typical of a sensornet (e.g., computing, communications and sensing services). This model, however, can be extended to support additional services provided in the orbital environment, which could become available in the near to mid-term future. Examples of these services include power (such as might be provided by a solar power satellite), physical servicing (such as described by the DARPA Phoenix project and others), orbital maneuvering or raising and actuation of other remote craft capabilities.

This paper considers …

Is Horizon Sampling More Powerful Than Depth Sampling?, Chris E. Johnson

Chris E Johnson

No abstract provided.

Fc Product：Discrete Fractional Chaotic Signal Software, Guo-Cheng Wu, Dumitru Baleanu

G.C. Wu

No abstract provided.

The Impact Of Teachers’ Knowledge Of Group Theory On Early Algebra Teaching Practices, Nick Wasserman, Julianna Connelly Stockton

Julianna Connelly Stockton

No abstract provided.

Solving The Instantaneous Response Paradox Of Entangled Particles Using The Time Of Events Theory, Sadeem Abbas Fadhil

Sadeem Abbas Fadhil

In the present study, a new theory that relates the special theory of relativity with quantum mechanics is formulated and then used to explain the remote instantaneous response of entangled particles without the assumptions of nonlocality or hidden variables. The basic assumptions of the present theory stands on the foundation of two space-times, namely, the static and dynamic space-times, in which the latter contains space points that move at the speed of light. The remote instantaneous interaction of the entangled particles is due to the closeness of these particles to each other in the dynamic space-time in spite of remoteness …

Selection And Phenotypic Characterization Of A Core Collection Of Brachypodium Distachyon Inbred Lines, Ludmilla Tyler, Johnathan U. Fangel, Alexandra D. Fagerström, Michael A. Steinwand, Ted K. Raab, William Gt Willats, John P. Vogel

Ted K. Raab

The model grass Brachypodium distachyon is increasingly used to study various aspects of grass biology. A large and genotypically diverse collection of B. distachyon germplasm has been assembled by the research community. The natural variation in this collection can serve as a powerful experimental tool for many areas of inquiry, including investigating biomass traits. We surveyed the phenotypic diversity in a large collection of inbred lines and then selected a core collection of lines for more detailed analysis with an emphasis on traits relevant to the use of grasses as biofuel and grain crops. Phenotypic characters examined included plant height, …

Simulating Univariate And Multivariate Tukey G-And-H Distributions Based On The Method Of Percentiles, Tzu-Chun Kou, Todd C. Headrick

Todd Christopher Headrick

This paper derives closed-form solutions for the 𝑔-and-ℎ shape parameters associated with the Tukey family of distributions based on the method of percentiles (MOP). A proposed MOP univariate procedure is described and compared with the method of moments (MOM) in the context of distribution fitting and estimating skew and kurtosis functions. The MOP methodology is also extended from univariate to multivariate data generation. A procedure is described for simulating nonnormal distributions with specified Spearman correlations. The MOP procedure has an advantage over the MOM because it does not require numerical integration to compute intermediate correlations. Simulation results demonstrate that the …