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A Multi-Scale Approach For Modeling Shock Ignition And Burn Of Granular Hmx, Pratap Thamanna Rao

LSU Doctoral Dissertations

Deflagration-to-detonation transition (DDT) in confined, low-density granular HMX (65%-85% Theoretical Maximum Density, TMD) occurs by a complex mechanism that involves compaction shock interactions within the material. Piston driven DDT experiments indicate that detonation is abruptly triggered by the interaction of a strong burn-supported secondary shock and a piston-supported primary (input) shock, where the nature of the interaction depends on initial packing density and primary shock strength. These interactions influence transition by affecting hot-spot formation within the micro-structure during pore collapse. In this study, meso-scale simulations of hot-spot formation in shock loaded granular HMX are used to guide the development of …

Newsroom, Georgia Southern University

Newsroom (2006-2023)

• University student chapter of Society for Human Resource Management named Georgia 'Chapter of the Year'
• Georgia Southern University partners with The Orianne Society

Usv Navigation In A Real-Time Map Using Intelligent Path Planner, Y Singh, S Sharma, R Sutton, Dc Hatton

School of Engineering, Computing and Mathematics

Unmanned surface vehicles (USV) are the recent trend in marine robotics due to their diverse application and easy deployment. Navigation of such USV in a real time marine environment is a major challenge and creates a need towards development of intelligent path planners which can increase the system autonomy. Many such intelligent path planning studies have been conducted in the area of mobile robotics but needs a lot more research to be conducted in area of marine robotics. In this study, a well know intelligent path planner A* has been implemented in a real time map using safety distance from …

University Of Northern Iowa Faculty Senate Meeting Minutes, November 13, 2017, University Of Northern Iowa. Faculty Senate.

Documents - Faculty Senate

Meeting minutes from the Faculty Senate of the University of Northern Iowa.

November 13, 2017 Armstrong State University Faculty Senate Minutes, Armstrong State University

Armstrong Faculty Senate: Minutes (Archived)

November 13, 2017 Armstrong State University Faculty Senate Minutes

November 13, 2017 Armstrong State University Faculty Senate Agenda, Armstrong State University

Armstrong Faculty Senate: Armstrong Faculty Senate Agenda (Archived)

November 13, 2017 Armstrong State University Faculty Senate Agenda

The Rider (2017-11-13), Jesus Sanchez

The Rider Archives

Vol.3 No.12

Construction Of Synthetic Signal Pathways In Mammalian Cells Via Induced Protein Proximity, Guihua Zeng

Chemistry and Chemical Biology ETDs

Cell signaling translates extracellular signals into intracellular processes that carry out cellular functions. The introduction of artificial signaling networks using synthetic biology methods has facilitated the investigation of signaling mechanisms and the generation of novel cell functions. Several synthetic biology methods that are based on chemical controls have been developed to provide precise temporal regulation. In my dissertation, we constructed new synthetic biology engineering strategies to control tailored cellular events.

Described in Chapter 2, we developed a new chemical strategy to generate de novo signaling pathways that link a signaling molecule, H₂O₂, to different downstream cellular …

Evaluating Market Reactions To Non-Practicing Entity Litigation, Emiliano Giudici, Justin Blount

Faculty Publications

An ongoing debate in patent law involves the role “non-practicing entities,” sometimes called “patent trolls,” serve in the patent system. Some argue they serve as valuable market intermediaries, while others contend they are a drain on innovation and an impediment to a well-functioning patent system. This Article adds to the data available in this debate by conducting an event study that analyzes the market reaction to patent litigation filed by large “mass aggregator” non-practicing entities against large publicly traded companies. This study advances the literature by attempting to reproduce the results of previous event studies done in this area with …

Using Data Envelopment Analysis To Benchmark Safety Culture In Aviation Organizations, Benjamin J. Goodheart Ph.D.

International Journal of Aviation, Aeronautics, and Aerospace

While organizations are increasingly encouraged to evaluate safety culture in the context of measurement of leading safety indicators within a safety management system, there remains no generally agreed upon means by which this should be accomplished. In fact, few tools exist that allow an operator to make such measurement with any substantial practical value. Data envelopment analysis (DEA) has been used extensively to compare organizational production efficiency, with techniques such as stochastic frontier analysis or the double-bootstrapped form of DEA infusing the process with a stochastic element. This study applies native DEA methodology toward the evaluation of safety culture and …

Making Corporate Social Responsibility Work: Do Rural And Community Banks (Rcbs) In Ghana Care At All?, Henry Kofi Mensah Dr., Ahmed Agyapong Dr., Eric Fosu Oteng-Abayie Dr.

The Qualitative Report

Rural and Community Banks (RCBs) were set up to provide banking services by way of funds mobilization and offering of credit to cottage industry operators, farmers, fishermen, and regular salaried employees. These banks are not obliged to undertake Corporate Social Responsibility (CSR) activities but are expected by some stakeholders such as citizens in the community to devote part of their profits to meet social developmental activities. This study examines the CSR practices among RCBs in Ghana by adopting a mixed method approach. A combination of Focus Group Discussions (FGDs) and cross-sectional survey was employed to gather detailed information from 86 …

S Tudies On The Phase Transitions And Properties Of Tungsten (Vi) Oxide Nanoparticles By X - Ray Diffraction (Xrd) And Thermal Analysis, Abdullah S.F., Radiman S., Abdul Hamid M.A., Ibrahim N.B.

ASEAN Journal on Science and Technology for Development

Tungsten (VI) oxide, WO3nanoparticles were synthesized by colloidal gas aphrons(CGAs) technique.The resultant WO3nanoparticleswere characterized by thermogravimetric-differential thermal analysis (TG-DTA) and X-Ray diffraction (XRD) measurements in order to determine the phase transitions, the crystallinity and the size of theWO3nanoparticles. As a comparison, transmission electron microscope (TEM) was used to investigate the size of the WO3nanoparticles. The result from XRD and DTA show that the formation of polymorphsWO3nanoparticles have the following sequence: orthorhombic (b-WO3)®monoclinic (g-WO3) ®triclinic (d-WO3) ®monoclinic (e-WO3) with respect to the calcination temperature of 400, 500, 600 and 700°C. No diffraction peaks were found in the X-Ray diffraction measurements for …

Cathodic Electrodeposition Of Cu 4 Sns 4 Thin Films From Acidic Solution, Kassim Anuar, Min Ho Soon, Tee Tan Wee, Abdullah Abdul Halim, Sharif Atan, Haron Md. Jelas, Nagalingam Saravanan, Kuang

ASEAN Journal on Science and Technology for Development

In this work the synthesis of copper tin sulfide thin films by electrodeposition is carried out. The films were deposited onto ITO glass substrates from anaqueous solution bath containingcopper sulfate, tin chloride and sodium thiosulfate at pH 1 and room temperature. Prior to the deposition, a cyclic voltammetry experiment was carried out between two potential limits (+1000 to -1000 mV versus Ag/AgCl) to probe the effect of the applied potential and to determine the most likely suitable electrodeposition potential for the deposition of copper tin sulfide. The deposition was attempted at various cathodic potentials such as -400, -600, -800, -1000 …

Testing Ebumgf Class Of Life Distributions Based On Laplace Transform Techniqu, A. M. Gadallah

Journal of Statistics Applications & Probability

Atallah et al. [10] and Al-Gashgari et al. [9] achieved a new technique for testing exponentiality based on Laplace transform, in this paper we introduce a new test for testing exponentiality versus ”exponential better than used in moment generating function ordering class”(EBUmgf ). By simulation, the critical values and the powers of the proposed test under various alternatives are calculated to assess the performance of the test. It is shown that the proposed test enjoys good power and performs better than some previous tests in terms of Pitman’s asymptotic efficiencies for several alternative. Finally sets of real data are used …

Q-Analogue Of Aleph-Function And Its Transformation Formulae With Q-Derivative, Altaf Ahmad, Renu Jain, D. K. Jain

Journal of Statistics Applications & Probability

In the present paper, the authors have derived the alternative definition of q-analogue of Aleph-Function, introduced by Dutta et. al.[13], by using q-Gamma function, which is an q-extension of the generalized H-function and I-function earlier defined by Saxena [4] and some transformation formulae are also derived. The basic analogue for this function provides elegant generalizations of the various results given by Saxena in connection with q- calculus. Some special cases have also been discussed.

Reduced Graphene Oxide On Nickel Foam For Supercapacitor Electrodes, Uma Ramabadran, Gillian Ryan, Xuan Zhou, Susan Farhat, Felicia Manciu, Yigang Tong, Ryan Ayler, Graham Garner

Physics Publications

The focus of this paper is the investigation of reduced graphene oxide (GO)/nickel foam (RGON) samples for use as supercapacitor electrodes. Nickel foam samples were soaked in a GO suspension and dried before being subjected to two different methods to remove oxygen. Atmospheric pressure annealed (APA) samples were treated with a varying number (10–18) of nitrogen plasma jet scans, where sample temperatures did not exceed 280 °C. Furnace annealed (FA) samples were processed in an atmosphere of hydrogen and argon, at temperatures ranging from 600 °C to 900 °C. Environmental Scanning Electron Microscope (ESEM) data indicated that …

Discrete Burr Type Xii Minimax Distribution: A New Discrete Model, B. A. Para, T. R. Jan

Journal of Statistics Applications & Probability

In this article, we attempt to introduce a new count data model which is obtained by compounding discrete Burr type XII distribution with Minimax distribution. Several distributional properties of the model have been discussed. Finally, real data set is analyzed to investigate the suitability of the proposed distribution in modeling count.

On Weighted Ailamujia Distribution And Its Applications To Lifetime Data, Uzma Jan, Kawsar Fatima, S. P. Ahmad

Journal of Statistics Applications & Probability

This paper deals with the introduction of generalized version of Ailamujia distribution called weighted Ailamujia distribution. In this paper, the different structural properties of the newly developed model have been studied and derived. The parameters of the proposed distribution have been estimated through the maximum likelihood technique and method of moments. Further, a likelihood ratio test of the weighted model has been obtained. In addition to this, the model under study has also been applied to the real life data sets for illustration.

A New Method For Adding Two Parameters To A Family Of Distributions With Application, M. Gharib, B. I. Mohammed, Kh. A. H. Al-Ajmi

Journal of Statistics Applications & Probability

In this paper, a new method is proposed for adding two parameters to a continuous distribution that extends the methods of [5] and [14] for adding a parameter to a family of distributions. Using the added parameters, the skewness and kurtosis of the resulting family can be fully controlled. Also simple sufficient conditions for the shape of the density and hazard rate functions of the new family are provided. Finally, the new method is applied in particular, to the one parameter Burr XII distribution to yield a three parameter extended Burr XII distribution which may serve as a competitor to …

Testing Odlmgf Class Of Life Distributions Based On U-Test, L. S. Diab, E. S. El-Atfy

Journal of Statistics Applications & Probability

New test-statistic for testing exponentiality against overall decreasing life class of life distributions in moment generating functionODLmgf, based on U-statistic is studied. Selected critical values are tabulated for sample size n = 5(5)50. The Pitman asymptotic relative efficiencies (PARE) are studied for other testes. The power of the test is estimated by simulation. The problem in case of right-censored data is also handled, and the power estimates of this test are also simulated for some commonly used distributions in reliability. Finally, real data are given to elucidate the use of the proposed test statistic for complete and incomplete data in …

Analysis Of Lifetime Performance Index With Compound Rayleigh Distribution In Presence Of Progressive First-Failure-Censoring Scheme, A. A. Modhesh

Journal of Statistics Applications & Probability

In service (or manufacturing) industries the lifetime performance assessment is important, hence, the lifetime performance index C_{L} is used to measure the potential and performance of a process, where L is the lower specification limit. In this paper, we study different estimators of C_{L} under the Compound Rayleigh distribution with general censored scheme called progressively first-failure-censored Scheme, which is quite useful in many practical situations. The results in the cases of first-failure censoring, progressive Type II censoring, Type II censoring and complete sample are a special cases. The study will apply data transformation technology to constructs a maximum likelihood (ML) …

A New Generalized Burr Family Of Distributions Based On Quantile Function, Arslan Nasir, Mohammad Aljarrah, Farrukh Jamal, M. H. Tahir

Journal of Statistics Applications & Probability

We propose a new family from Burr XII distribution, called T-Burr family of distributions based on the T-R{Y} framework. For this family, we consider the quantile functions of three well-known distributions, namely, Lomax, logistic and Weibull, and further developed three sub-families T-Burr{Lomax}, T-Burr{Log-logistic} and T-Burr{Weibull}. Some mathematical properties such as quantile function, mode, Shannon entropy, moments, and mean deviations, of T-R{Y} family are obtained. One special model, namely, Weibull-Burr{Lomax} from T-Burr{Lomax} family is considered and its properties are obtained. This model is flexible and can produce the shapes of the density such as left-skewed, right-skewed, symmetrical, J, and reversed-J, and …

Estimation Of Population Mean Using Exponential Dual To Ratio Type Compromised Imputation For Missing Data In Survey Sampling, B. K. Singh, Upasana Gogoi

Journal of Statistics Applications & Probability

In this paper, we have proposed a class of exponential dual to ratio type compromised imputation technique and corresponding point estimator. Its mean square error expression is compared with the sample mean, ratio and compromised methods of imputation in the case of missing data. Further, numerical illustrations are provided with the help of some natural population data sets to compare their efficiencies for different non-response rate.

New Randomized Response Procedure For Finding Optimal Solution Using Branch And Bound Method, Tanveer Ahmad Tarray, Muzafar Rasool Bhat, Kaiser J. Giri

Journal of Statistics Applications & Probability

The crux of this paper is to consider a randomized response model using stratified random sampling based on Singh and Gorey (2017). In this paper the problem of optimal allocation in stratified random sampling where randomized response technique is used in presence of non response. The problem is formulated as a Nonlinear Programming Problem (NLPP) and is solved using Branch and Bound method. Also the results are formulated through LINGO

An Improved Exponential Method Of Estimation For Current Population Mean In Two-Occasion Successive Sampling, G. N. Singh, C. Singh, A. K. Pandey, S. Suman

Journal of Statistics Applications & Probability

The present article proposes an improved exponential method of estimation for current population mean in two-occasion successive sampling when the information on an auxiliary variable is readily available on both the occasions. The behavior of the proposed estimator has been examined and its optimal replacement strategy is formulated. Empirical studies are carried out to show the dominance of the proposed estimation procedure. Results are interpreted and suitable recommendations are made to the survey practitioners.

A New Approach To Bayesian Change Point Detection Using Lifting Wavelet Transform, Arunendu Chatterjee

Journal of Statistics Applications & Probability

In this paper, we use wavelets in a Bayesian context to identify changes in the pattern of data collected over time in the presence of noise and missing observations in the data. A Bayesian analysis based on the wavelet coefficients applying lifting is discussed to identify change points. Based on a simulation study, recommendations are made on the choice of lifting wavelet coefficients in the presence of noise and missing observations using an adaptive lifting technique. We apply our algorithm to a real data problem where change points are already known to illustrate our recommendations

Prediction Of Generalized Order Statistics Based On Some Accelerated Data Using The Tampered Failure Rate Model, M. M. Mohie El-Din, W. S. Emam

Journal of Statistics Applications & Probability

Prediction of generalized order sample can be done with normal bounds having suitable confidence. However, given independent samples from the same absolutely continuous distribution, the prediction based on some accelerated bounds can be achieved. In this regard, this paper deals some various exact non-parametric prediction intervals for the future generalized order statistics under normal operating conditions based on stressed generalized order variables were observed in step stress accelerated life test: The tampered failure rate model. The progressive Type-II right-censoring order sample of failure time data that presented by Xiong [1] are used in numerical computations to illustrate the proposed procedures.

A Class Of Exponential Chain Type Estimator For Population Mean With Imputation Of Missing Data Under Double Sampling Scheme, Abhishek Kumar, Ajeet Kumar Singh, Priyanka Singh, V. K. Singh

Journal of Statistics Applications & Probability

This paper aims to deal with the problem of non-response, by suggesting an exponential chain type class of imputation technique and corresponding point estimator in double sampling has been proposed for estimating finite population mean of the study variable when the information on another additional auxiliary variable is available along with the main auxiliary variable. The bias and mean square error of the proposed strategy have been obtained. Theoretical and empirical studies have been done to demonstrate the supremacy of the proposed strategy with respect to the strategies which utilize the information on one and two auxiliary characteristics.

A New Family Of Heavy Tailed Symmetric Distribution For Modeling Financial Data, Nitha K. U., Krishnarani S. D.

Journal of Statistics Applications & Probability

In this article we study a new family of distributions in the real line. The proposed model can be seen as a suitable model for fitting symmetric and kurtotic datasets. It arises as a mixture of the Laplace and bilateral gamma densities. We study some of its analytical properties and estimate the unknown parameters using maximum likelihood method. Algorithm of simulation and applications to the real dataset of monthly interest rate data are presented. An asymmetric generalization of the new model is discussed.

Interactive Approach For Multi-Level Multi-Objective Fractional Programming Problem Under Hybrid Uncertainty, M. S. Osman, O. E. Emam, M. A. El Sayed

Journal of Statistics Applications & Probability

In this paper, an interactive approach for solving multi-level multi-objective fractional programming (ML-MOFP) problem under hybrid uncertainty is developed. The proposed interactive approach makes an extension work of Shi and Xia [22]. In the current model the left-hand- and right-hand-side variables in the constraints are influenced by hybrid uncertainty (i.e. both fuzziness and randomness); represented by fuzzy random variables (FRVs). In the first phase, we make the best use of the chance-constrained programming approach and the α -cut approach to obtain the equivalent deterministic model of the ML-MOFP problem with FRVs. Then, the linear model of the crisp ML-MOFP problem …