Physical Sciences and Mathematics Commons^™

An Alternate Approach To Alternating Sums: A Method To Die For, Arthur T. Benjamin, Jennifer J. Quinn

Jennifer J. Quinn

No abstract provided in this article.

Fibonacci Deteminants - A Combinatorial Approach, Arthur T. Benjamin, Naiomi T. Cameron, Jennifer J. Quinn

Jennifer J. Quinn

In this paper, we provide combinatorial interpretations for some determinantal identities involving Fibonacci numbers. We use the method due to Lindström-Gessel-Viennot in which we count nonintersecting n-routes in carefully chosen digraphs in order to gain insight into the nature of some well-known determinantal identities while allowing room to generalize and discover new ones.

Fibonacci Determinants — A Combinatorial Approach, Arthur T. Benjamin, Naiomi T. Cameron, Jennifer J. Quinn

Jennifer J. Quinn

In this paper, we provide combinatorial interpretations for some determinantal identities involving Fibonacci numbers. We use the method due to Lindström-Gessel-Viennot in which we count nonintersecting n-routes in carefully chosen digraphs in order to gain insight into the nature of some well-known determinantal identities while allowing room to generalize and discover new ones.

Evolution And Rationale For United States Department Of Defense Electromagnetic Pulse Protection Standard, George H. Baker Iii

George H Baker

The United States (US) Department of Defense (DoD) Electromagnetic Pulse (EMP) protection standard offers a solid basis for protecting commercial communication, data, and control facilities. Because of the standard’s shielded barrier and test requirements, it is not surprising that there is a strong temptation within industry and government to dismiss the MIL-STD 188-125 approach in favor of less rigorous protection methods. It is important to understand that US DoD EMP protection standard for fixed facilities, MIL-STD-188-125, reflects an evolution by trial and error that spanned a period of decades beginning with the acquisition of the Minuteman Missile System in the …

Proposal For A Dod Combined Battlefield Electromagnetic Environmental Effects (E3) Initiative, George H. Baker Iii

George H Baker

The presentation emphasizes the growing importance of electromagnetic survivability and compatibility. Operation Desert Storm demonstrated the clear military advantage provided by sophisticated electronic weapon and communication systems. In addition, the offensive tactic of taking out the enemy's eyes and ears during the air war paid off, giving our military decisive air superiority. The lessons for the future are clear. High-tech electronics now so dominates the battlefield that the outcome of future conflicts could well be decided by electronics attrition rather than human casualties. Our Desert Storm experience thus accentuates the importance of guaranteeing that our electronic systems will not be …

First Direct Constraints On Fierz Interference In Free-Neutron Β Decay, Kevin P. Hickerson, Xiaohui Sun, Yelena Bagdasarova, David Bravo-Berguño, Leah J. Broussard, Peter Brown, Richard Carr, Scott Currie, Xinjian Ding, Bradley W. Filippone, Alejandro García, Peter Geltenbort, J. Todd Hoagland, A. T. Holley, Ran Hong, Takeyasu M. Ito, Andreas Knecht, Chao-Yu Liu, Jiang-Lai Liu, Mark Makela, Russell R. Mammei, J. W. Martin, Dan Melconian, Michael P. Mendenhall, Spencer D. Moore, Christopher L. Morris, Robert W. Pattie, A. Pérez Galván, Ruediger Picker, Margaret L. Pitt, Bradley R. Plaster, John C. Ramsey, Roger H. Rios, A. Saunders, Susan J. Seestrom, Eduard I. Sharapov, Walter E. Sondheim, Erdinch Tatar, R. Bruce Vogelaar, Brittney Vorndick, Christopher Wrede, Andrew R. Young, B. A. Zeck

Robert W. Pattie Jr.

Testimony Of Dr. George H. Baker, Senior Advisor To The Congressional Emp Commission, George H. Baker Iii

George H Baker

This is the script of testimony before the Federal Energy Regulatory Commission. It offers a vision for a future in which our electric power systems will be able to operate through or quickly recover from catastrophic failure due to electromagnetic pulse (EMP), cyber, and physical attacks. The scope of the term ‘EMP’ used in this testimony includes both naturally occurring solar storms and the more energetic man-made EMP hazards. The vision has been discussed with members of the electric power industry, and prominent EMP/cyber/physical protection advocates who find it to be supportable and actionable. The nature of EMP, cyber, and …

Biobased Products And The Leed® Rating System, Meredith Chambers, Mikesch Muecke

Mikesch Muecke

At the beginning of the 20th century, over 40% by weight of all the materials consumed through the production of goods within the United States were comprised of renewable resources (Matos and Wagner 1998). In contrast, by the end of the 20th century renewable material usage had dropped to less than 8% by weight (Matos and Wagner 1998). Combined with both an increase in the overall rate at which we consume resources as well as growing awareness of the inherently finite availability of nonrenewable resources, the early decades of the 21st century may mark the beginning of a shift back …

Harnessing Wastewater For Renewable Energy (2013-2), Aaron Adalja, Chalida U-Tapao

Aaron Adalja

This case study explores the options for using wastewater to produce renewable energy in the context of a public wastewater treatment plant. It provides an opportunity for students to synthesize knowledge from resource economics, engineering, environmental science, agriculture, and public policy to develop a transdisciplinary approach to a socio-environmental issue. The case is designed for upper division undergraduate courses in resource economics or environmental engineering, but several modifications are provided graduate course applications. Students assume the role of a newly hired analyst at a consulting firm in Washington, DC, that specializes in renewable energy solutions. They are charged with proposing …

Computer Science And Cultural History: A Dialogue, David B. Dennis, George K. Thiruvathukal

David B. Dennis

No abstract provided.

Software Metrics And Dashboard, Shilpika Shilpika, George K. Thiruvathukal, Saulo Aguiar, Konstantin Läufer, Nicholas J. Hayward

Nicholas Hayward

Software metrics are a critical tool which provide continuous insight to products and processes and help build reliable software in mission critical environments. Using software metrics we can perform calculations that help assess the effectiveness of the underlying software or process. The two types of metrics relevant to our work is complexity metrics and in-process metrics. Complexity metrics tend to focus on intrinsic code properties like code complexity. In-process metrics focus on a higher-level view of software quality, measuring information that can provide insight into the underlying software development process.

Our aim is to develop and evaluate a metrics dashboard …

Metrics Dashboard Services: A Framework For Analyzing Free/Open Source Team Repositories, Shilpika Shilpika, George K. Thiruvathukal, Nicholas Hayward, Konstantin Läufer

Nicholas Hayward

No abstract provided.

Towards Sustainable Digital Humanities Software, George K. Thiruvathukal, Shilpika Shilpika, Nicholas J. Hayward, Saulo Aguiar, Konstantin Läufer

Nicholas Hayward

Our work in software quality for digital humanities was borne of an effort to address sustainable practices in scientific software development, where the speaker (Thiruvathukal) co-authored a position paper on the case for software engineering in scientific software development as part of an all-encompassing strategy to create more sustainable scientific software (an example of a well-known scientific software package is LINPACK). In this position paper, we addressed how “progress in scientific research is dependent on the quality and accessibility of software at all levels". This progress depends on embracing the best traditional--and emergent--practices in software engineering, especially agile practices that …

The Crystal Structure Of Nitrosomonas Europaea Sucrose Synthase Reveals Critical Conformational Changes And Insights Into The Sucrose Metabolism In Prokaryotes, Rui Wu, Matías D. Asención Diez, Carlos M. Figueroa, Matías Machtey, Alberto A. Iglesias, Miguel Ballicora, Dali Liu

Miguel A Ballicora

In this paper we report the first crystal structure of a prokaryotic sucrose synthase from the non-photosynthetic bacterium Nitrosomonas europaea. The obtained structure was in an open form, whereas the only other available structure from the plant Arabidopsis thaliana was in a closed conformation. Comparative structural analysis revealed a “hinge-latch” combination, which is critical to transition between the open and closed forms of the enzyme. The N. europaea sucrose synthase shares the same fold as the GT-B family of the retaining glycosyltransferases. In addition, a triad of conserved homologous catalytic residues in the family showed to be functionally critical in …

Factors Affecting Individual Foraging Specialization And Temporal Diet Stability Across The Range Of A Large “Generalist” Apex Predator, Adam E. Rosenblatt, James C. Nifong, Michael R. Heithaus, Frank J. Mazzotti, Michael S. Cherkiss, Brian M. Jeffery, Ruth M. Elsey, Rachel A. Decker, Brian R. Silliman, Louis J. Guillette Jr., Russell H. Lowers, Justin C. Larson

Adam Rosenblatt

Individual niche specialization (INS) is increasingly recognized as an important component of ecological and evolutionary dynamics. However, most studies that have investigated INS have focused on the effects of niche width and inter- and intraspecific competition on INS in small-bodied species for short time periods, with less attention paid to INS in large-bodied reptilian predators and the effects of available prey types on INS. We investigated the prevalence, causes, and consequences of INS in foraging behaviors across different populations of American alligators (Alligator mississippiensis), the dominant aquatic apex predator across the southeast US, using stomach contents and stable isotopes. Gut …

Prediction Of Solid Oxide Fuel Cell Performance Using Artificial Neural Network, M. A. Rafe Biswas, Kamwana N. Mwara

M. A. Rafe Biswas

Metrics, Software Engineering, Small Systems – The Future Of Systems Development, William L. Honig

William L Honig

In this talk I will introduce the importance of metrics, or measures, and the role they play in the development of high quality computer systems. I will review some key mega trends in computer science over the last three decades and then explain why I believe the trend to small networked systems, along with metrics and software engineering will define the future of high technology computer based systems. I first learned about metrics at the Bell System where everything was measured. Metrics can be understood easily if you think of them as measures, for example of calories or salt in …

Lack Of Attention To Singular (Or Atomic) Requirements Despite Benefits For Quality, Metrics And Management, William L. Honig, Shingo Takada, Natsuko Noda

William L Honig

There are seemingly many advantages to being able to identify, document, test, and trace single or “atomic” requirements. Why then has there been little attention to the topic and no widely used definition or process on how to define atomic requirements? Definitions of requirements and standards focus on user needs, system capabilities or functions; some definitions include making individual requirements singular or without the use of conjunctions. In a few cases there has been a description of atomic system events or requirements. This work is surveyed here although there is no well accepted and used best practice for generating atomic …

Introduction To Atomic Requirements, William L. Honig

William L Honig

An introduction to requirements and the importance of making single atomic requirements statements. Atomic requirements have advantages and improve the requirements process, support requirement verification and validation, enable traceability, support testability of systems, and provide management advantages. Why has there been so little emphasis on atomic requirements?

Requirements Quick Notes, William L. Honig, Shingo Takada

William L Honig

A short introduction to requirements and their role in system development. Includes industry definition of requirements, overview of basic requirements process including numbering of requirements, ties to testing, and traceability. An introduction to requirements quality attributes (correct, unambiguous, etc.) Includes references to requirements process, numbering, and quality papers.

An Example Of Atomic Requirements - Login Screen, William L. Honig

William L Honig

A simple example of what an atomic or individual or singular requirement statement should be. Using the example of the familiar login screen, shows the evolution from a low quality initial attempt at requirements to a complete atomic requirement statement. Introduces the idea of a system glossary to support the atomic requirement.

Requirements Metrics - Definitions Of A Working List Of Possible Metrics For Requirements Quality, William L. Honig

William L Honig

A work in progress to define a metrics set for requirements. Metrics are defined that apply to either the entire requirements set (requirements document as a whole) or individual atomic (or singular, individual) requirements statements. Requirements are identified with standard names and a identification scheme and include both subjective and objective measures. An example metric for the full set of requirements: Rd2 - Requirements Consistency, Is the set of atomic requirements internally consistent, with no contradictions, no duplication between individual requirements? An example of a metric for a single requirement: Ra4 - Requirement Verifiability, How adequately can this requirement be …

Atomic Requirements Quick Notes, William L. Honig, Shingo Takada

William L Honig

Working paper on atomic requirements for systems development and the importance of singular, cohesive, individual requirements statements. Covers possible definitions of atomic requirements, and their characteristics. Atomic requirements improve many parts of the development process from requirements to testing and contracting.

Luna Gsa Fall 2017 Poster.Pptx, Melissa Luna

Melissa Luna

300-X-250-7.Jpg, Susunqq Online

susunqq

Horticulture, Led Grow Lights, Grow Tents- Perfect For Indoor Gardens.Docx, Sam Sims

Sam Sims

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On The Interaction Of Object-Oriented Design Patterns And Programming Languages, Gerald Baumgartner, Konstantin Laufer, Vernon J. Rego

Konstantin Läufer

No abstract provided.

Experiences With Scala Across The College-Level Curriculum, Konstantin Läufer, George K. Thiruvathukal, Mark C. Lewis

Konstantin Läufer

Various hybrid-functional languages, designed to balance compile-time error detection, conciseness, and performance, have emerged. Scala, e.g., is interoperable with Java and has become an early leader in adoption, especially in the start-up and open-source spaces. As educators, we have recognized Scala’s value as a teaching language across the CS curriculum. In CS1, the read-eval-print loop and simple, uniform syntax aid programming in the small. In CS2, higher-order methods allow concise, efficient manipulation of collections. In a programming languages course, advanced constructs facilitate the separation of concerns, program representation and interpretation, and concurrent programming. In advanced applied courses, language mechanisms and …

Moving Academic Department Functions To Social Networks And Clouds: Initial Experiences, George K. Thiruvathukal, Konstantin Läufer, David Dennis

Konstantin Läufer

The ability to move locally hosted services to cloud-based technologies is a key element in the scientific programming toolbox.