Digital Commons Network^™

Multiple Wavepacket Decomposition Of F404 Engine Military Jet Noise, Tyce W. Olaveson, Kent L. Glee

Utah Space Grant Consortium

Jet noise sources are challenging to measure directly due to the extreme environment. Inverse methods, such as acoustic beamforming, using data collected near these sources can be used to construct equivalent source models that accurately describe the acoustic radiation. However, generating these models for a complex source can require thousands of parameters for a complete description. To address this challenge, a multiple wavepacket decomposition is introduced, reducing the source model into a set of analytic wavepackets, which recreate the full-rank model. This paper provides an overview of the decomposition procedure and applies it to acoustic data collected near a T-7A-installed …

A Comparison Of Surrogate Modeling Techniques For Predicting Radial Turbomachinery Flow Fields, Chase Oliphant

Utah Space Grant Consortium

Radial pumps and compressors are used in various engineering applications, including rocket turbopumps, automotive turbochargers, refrigeration systems, etc. Several different physical effects, including viscous losses, flow separation, compressibility, and rotational dynamics, dominate the flow in a radial impeller. These effects make predicting the flow field in a radial impeller very difficult, requiring computationally expensive CFD. However, a majority of an individual flow field calculated using CFD is often not pertinent to a designer, who only requires information at certain positions within the flow field. This often results in most of the simulation data generated being unused. Accurately predicting the flow …

Bistatic Continuous Wave Radar Using Sdrs, Matthew Finger

Utah Space Grant Consortium

This paper describes a research project at Weber State University (WSU) to create a small-scale passive-bistatic radar (PBR) using a low-cost software-defined-radio (SDR). SDRs have improved (in terms of performance versus cost) to where an affordable, low-power, receive-only radar system may be used in suitable RF environments.

The initial effort will generate a PBR testbed. Controlled measurement campaigns will validate radar-signal processing algorithms using two-dimensional geometries with a controllable transmitted signal. Follow-on research will integrate a two-element phased-array antenna at the receive SDR.

Using Nasa Awe Observations To Investigate The Global Distribution Of Concentric Gravity Waves, Anastasia King-Brown, Ludger Scherliess

Utah Space Grant Consortium

Upward propagating atmospheric gravity waves (GWs) originating from various lower atmosphere sources can transport energy and momentum into the Earth's upper atmosphere. In the ionosphere, GWs produce traveling ionospheric disturbances (TIDs), generate electric fields, and appear to contribute to the seeding of equatorial plasma bubbles that have detrimental effects on navigation, communication, and surveillance systems. Despite their importance and decades of research there are still many open questions regarding the morphology and dynamics of gravity waves. Of particular interest are concentric gravity waves (CGWs), as they are the direct result of the coupling between lower and upper atmosphere . For …

Effect Of Rehabilitation Exercises And Antioxidants On Patients With Stable Heart Failure, Shimaa Mohamed Abu Zeid, Walid A. Ali

Al-Mustaqbal Journal of Pharmaceutical and Medical Sciences

The research aims to find out the effect of rehabilitation exercises and antioxidants in some physical and physiological abilities, free radicals and the degree of pain for patients with stable heart failure, and the research sample was selected randomly and whose ages ranged between 40–45 years and their number is 30 female patients with this disease, and the researcher used the experimental approach as the most appropriate approach to solve the research problem, as the sample was divided into two groups equal in number, each of which (15) patients (experimental and control), and the tribal tests were carried out after …

Classification Of Brain Tumor Using Hybrid Pre-Trained Networks And Mrmr Algorithm, Mustafa Ridha Al-Yasari, Mohammed Qasim Alazzawi, Sarmad Jawad, Mohammed Alshujairi, Zamzam Ali Abood Noory Al-Shafiee, Jaber Parchami, Heba. G. Abdelzaher, M. A. Abdelzaher

Al-Mustaqbal Journal of Pharmaceutical and Medical Sciences

Brain tumor classification is one of the crucial uses of medical image processing. A longer life is possible if the tumor is correctly and promptly diagnosed. Because manually segmenting brain tumors for cancer diagnosis is difficult and time-consuming, automatic classification of brain tumor images is necessary for this task. Pre-processing, feature extraction, feature selection, and classification are the four stages of the general framework for automatic tumor detection from MRI images. The method for automatic brain tumor classification described in this research combines machine learning and deep learning algorithms. We used three pre-trained deep networks to extract the most detailed …

Biosignature Analysis In Saline Environments Using The Microfluidic Organic Analyzers For Biosignatures (Moab), Andrew Pack, Parker Jenkins, Jungkyu (Jay) Kim

Utah Space Grant Consortium

This study examines amino acid stability in high-salinity environments to enhance biosignature detection technologies. Using both absorption spectroscopy and capillary electrophoreses (CE), we investigated the survivability of valine and serine in laboratory-created brines simulating those found on celestial bodies throughout the solar system. Our findings reveal a protective effect of brines on amino acids, with reduced degradation rates compared to control samples containing no salts. During the 12-day observation period, both polar and non-polar amino acids showed enhanced stability in high-salinity environments, though non-polar amino acids exhibited more pronounced benefits from this protective effect. Valine concentrations in saline conditions decreased …

Synthesis And Characterization Of Novel Derivatives Of Imides 1,2,4-Triazole Polymers Via Microwave And Study Biological Activities, Bahaa Fadhil Hamzah

Al-Mustaqbal Journal of Pharmaceutical and Medical Sciences

New derivatives of imides 1,2,4-triazole polymers as pharmaceutical compounds were prepared from the synthesis of amic acid compounds (1A-E) by reacted of benzocaine with different cyclic anhydrides. Then cyclic imide compounds (2A-E), which prepared from converted amic acid compounds by using acetic anhydrate (CH₃CO)₂O and anhydrous sodium acetate CH₃COONa as a water drawer agent. Compounds (2A-E) were react with nucleophilic addition of hydrazine hydrate to ester cyclic imide compound to produce acid hydrazide cyclic imide compounds. Thereafter, cyclization of compounds (4A-E) and (5A-E) were prepared from react of acid hydrazide cyclic imide compounds with …

Tax Trends, Nicholas J. Fiore

Tax Adviser

No abstract provided.

A Novel Modular Spherical Joint For Truss Robots, Ivyann O. Running, Simon Charles, Eli Francom, Bryce Parkinson, Adam Rose, Hunter Pruett, Larry Howell, Nathan Usevitch

Utah Space Grant Consortium

Truss robots and structures are beneficial for lunar missions because of their high strength-to-mass ratio. Even better are robots and structures that are highly modular, allowing the same materials to be rearranged to perform various tasks. The joints of these robots are what must be connected and disconnected to create different truss forms. Therefore, it is necessary to develop highly mobile, modular spherical joints that allow multiple truss elements to attach. Moreover, these joints must be resistant to the lunar regolith. Our contribution in this paper is the design of a new spherical joint and its application to an isoperimetric …

Assessing The Effectiveness Of A Nurse-Led Family-Focused Program On The Physical Health Domain Of Children With Congenital Heart Defects, Maha Abdul Hussein Mutasher Al-Barki, Wameedh Hamid Shaker Alzubeidi

Al-Mustaqbal Journal of Pharmaceutical and Medical Sciences

Background: Assessing the effectiveness of a nurse-led family-focused program on the physical health domain of children with congenital heart defects (CHDs) is a critical area of research. CHDs are among the most common congenital anomalies, affecting nearly 1 in 100 live births. physical activity plays an important role in overall health and recovery congenital heart disease. Quality of life educational include specific directions to increase level of physical activity, such as walking daily or exercising regularly. Objectives: This study aims to assess the effectiveness of a nurse-led family-focused program in improving the physical health outcomes of children with CHDs. Methods …

Estate Planning: Significant Recent Developments Concerning Estate Planning (Part I), Byrle M. Abbin, David K. Carlson

Tax Adviser

No abstract provided.

Bi-Level Route Optimization And Path Planning With Hazard Exploration, Grant Stagg, Cameron K. Peterson

Utah Space Grant Consortium

Effective risk monitoring in dynamic environments such as disaster zones requires an adaptive exploration strategy to detect hidden threats. We propose a bi-level unmanned aerial vehicle (UAV) monitoring strategy that efficiently integrates high-level route optimization with low-level path planning for known and unknown hazards. At the high level, we formulate the route optimization as a vehicle routing problem (VRP) to determine the optimal sequence for visiting known hazard locations. To strategically incorporate exploration efficiency, we introduce an edge-based centroidal Voronoi tessellation (CVT), which refines baseline routes using pseudo-nodes and allocates path budgets based on the UAV's battery capacity using a …

Rationale Underlying The Conceptualization Of The Component Of The Model M-D Dem, Girmay Berhie

Journal of African Policy Studies

The purpose of the study is to show the need of developing an evaluation model called The Multi-Dimensional Developmental Evaluation Model (M-D DEM) for Third World countries and what structural components to include and the rationale of why these structural components for the evaluation model are crucial to be included.

A number of evaluation research guidelines for use in Third World countries can be found for conducting evaluation research on social programs and projects. However, no systemic approach could be found in the literature review for appraising the systemic impact of the social programs, the relevance of the program to …

The Technological Dimension Of Africa's Crsis Of Development: An Agenda For The 21st Century, Osita Agbu

Journal of African Policy Studies

This article critically examined the ways that technological underdevelopment had contributed to the deepening crises of Africa's technological backwardness. Adopting a holistic and historical approach, it tried to show how technological underdevelopment and the dearth of technologically driven approaches to addressing developmental questions had adversely affected the continent.

The article opines that beyond the technological is the fundamental understanding that the problem which Africa is facing is not just a technical one, but involves also a polical dimension which must not be ignored. It sought to explicate the question of whose technology for what, and in whose interest? It maintained …

The Persistence Of High Fertility In Sub-Saharan Africa, Ellen Brennan-Galvin, Elizabeth Gould

Journal of African Policy Studies

This paper examines the factors that have contributed to the persistence of high fertility in sub-Saharan Africa. It begins with an overview of the current fertility situation. It then traces historical colonial trends that are still influencing population growth in present-day Africa and examines traditional cultural supports for high fertility, such as the practice of polygyny and the strong aversion to childlessness. Some countries in sub-Saharan Africa already have begun a transition to lower fertility, whereas in others, women still bear an average of seven or eight children.

Even if there were greater demand for family planning services, the disruptions …

Fertility Decline In Sub-Saharan Africa: Introduction, Charles M. Becker

Journal of African Policy Studies

No abstract provided.

Of Course I'M Doing None Of These Things, Philip Athans

Studio One

No abstract provided.

Studio One Volume 49, Studio1 Literary Club

Studio One

No abstract provided.

Treatment Wastewater Of Oil Refinery By Fe2o3 Nps Produce By The Novel Alishewanella Jeotgali Strain Haq8., Hawraa Qays Al-Assdy, Wijdan Hussein Al-Tamimi, Asia Fadhile Almansoory

Karbala International Journal of Modern Science

Metal oxide nanoparticles like iron oxide (Fe₂O₃) exhibit strong reactivity and photolytic features in wastewater treatment and serve as an effective adsorbent for water purification due to its substantial surface area and affinity for different functionalized groups. Iron oxide nanoparticles) IONPs) are currently applied to treat oil-contaminated water. Fe₂O₃NPs were produced using an extracellular approach utilizing the Alishewanella jeotgali strain HAQ8. IONPs were characterized using UV-vis, FT-IR, XRD, AFM, SEM-EDX, and Zeta potential. λ max for the synthesized nanoparticles observed at (358) nm. The bands at 485 cm⁻¹ in the FT-IR spectrum confirmed the formation of …

The Effect Of Mauritania's "Human Rights Deficit" On The Political Process: A Case Against "To Forgive And Forget", Boubacar N'Diaye

Journal of African Policy Studies

No abstract provided.

A Perennial Kind Of Service: Flannery O’Connor, Protégé And Mentor, Brent S. House

Journal of Creative Writing Studies

Flannery O’Connor stands among the great authors of the second half of the twentieth century, with a canon of literary work—two novels and a National Book Award-winning collection of stories, along with essays, speeches, letters, and journals—that belies her limited years. If her life had been longer, she would have completed a greater body of work, but she also might have affected the development of creative writing pedagogy in the United States. O’Connor, after all, was one of the most successful of the early graduates of the Iowa Writers’ Workshop, the first and most prestigious graduate program for creative writers. …

Leases And Service Contracts With Tax-Exempt Entities After The Dra, David Warren

Tax Adviser

No abstract provided.

Taxation Of Separations And Divorces Under The Dra, Howard W. Dragutsky

Tax Adviser

No abstract provided.

Zimbabwe's Land Reform And Environmental Dilemma, Smile Dube

Journal of African Policy Studies

This paper examines the evolution of thinking in the World Bank on development land reform in Zimbabwe. It argues that the evolving and broader definitions of land reform in Zimbabwe must consider the conditions necessary for the attainment of economic development that encompasses sustainable development, poverty alleviation, capacity building, gender equality, good governance and now conflict prevention and resolution. The paper explores an economic model of political power derived from Mancur Olson's work relating power and prosperity in both transition and developing economies. The model is applied to Zimbabwe after independence, under one ruler and one party — Robert Mugabe …

Communities’ Perception Of Tourism And The Environment In Kenya: A Case Study Of Nairobi National Park, Frances Ekwulugo, A. Binsardi, J. Muhati

Journal of African Policy Studies

The study focuses on the community perception of tourism on the local environment in the Nairobi National Park in Kenya. It highlights not only the importance of tourism in the process of economic development, but also the environmental impacts of tourism on the surrounding communities in the Nairobi National Park. Kenya. Structured interviews were used to obtain local communities' perception of Masaai and Nairobi Communities. In order to complement the interview, an in-depth interview was employed by interviewing local experts from the communities, voluntary organization, non-governmental organization, and the ministry of tourism. A purposive random sampling of 300 respondents was …

A Framework For Managing Environmental Policy In Nigeria, Felix Moses Edoho

Journal of African Policy Studies

This paper examines environmental issues in Nigeria. It argues that there is the need for public commitment to effective management of environmental policies in Nigeria. The paper provided a management framework that could be used by the Nigerian government for the effective implementation of their environmental policies. The underlying rationale is that any goal-oriented environmental policy must have management at its core. It is argued that regardless of their levels of sophistication, environmental policies are unlikely to be successful without a corresponding management infrastructure. Establishing effective management infrastructure for the implementation of environmental policies, in turn, requires political leadership and …

Environmental Policy In The Democratic Republic Of The Congo, Francois N. Muyumba

Journal of African Policy Studies

This paper explores the dynamics of environmental policy in the Democratic Republic of Congo. It argues that the constituents of the policy and policy analysis itself must be judiciously and critically comprehensive in their overall scope, so as to encompass the fullness of the problem at hand. It stress that it is imperative for the government of the Democratic Republic of Congo to tighten up slackness extended to international companies operating and polluting the nation. This slackness in environmental policy enforcement is the reason why foreign companies do not observe or respect the nations' policies and laws. This paper is …

Feminism, Children And Environmental Policy In Zimbabwe, Saliwe Kawewe

Journal of African Policy Studies

This study utilizes a feminist perspective in demonstrating how gender intersects with socioeconomic forces of over a century of patriarchal environmental endeavors such as global modernization: imperialism and colonialism as conditions that have historically perpetuated environmental degradation in Zimbabwe as elsewhere in sub-Saharan Africa. The study examines how environmental policies of both pre and post independent Zimbabwe have had devastating consequences on the poor and marginalized, particularly women and girl children of this Third World in the nation. Additionally, the study proposes gender mainstreaming as a social networking model for socioeconomic and environmental sustainability through grassroots indigenous participation, capacity building, …

African Security In The Information Age, Uri J. Fisher, M. Shane Smith

Journal of African Policy Studies

This article examines Africa's place in the information revolution and the security implications that flow from this relationship. All states in Africa now have Internet access, although the continent is still characterized by a lack of infrastructure, resources, and technology. We examine the many initiatives underway in Africa aimed at enhancing information and communication technologies. The African Network Initiative, the African Information Society Initiative, and UNESCO's Regional Information Network for Africa are only a few of the many that are trying to increase the continent's connectivity. Increased African security in economic and military matters will be dependent on the continent's …