Digital Commons Network^™

The Arkisys Port Module: An Orbital Platform For Hosted Payloads In Low-Earth Orbit, Rahul Rughani, David A. Barnhart, Dan Lopez

Small Satellite Conference

Advances in Small Satellite technology combined with the availability of low-cost rideshares to Low-Earth Orbit (LEO) have led to an increasing number of space missions. However, the underlying technology for small payload missions has been relatively constant over the past two decades: CubeSat form factor platforms for free-flying missions in LEO. Arkisys is working to change this, and allow a wider variety of payloads to reach LEO which don't include an immediate free-flying requirement. This platform is called The Port, and is an autonomous long-duration orbital platform for a multitude of uses, including hosting payloads in LEO.

Currently, avenues …

Using Space Games Like Simplerockets, Spaceflight Simulator, And Kerbal Space Program To Teach Kids Orbital Mechanics, Ryan Cahoy, Joey Murphy

Small Satellite Conference

Kids love space exploration, but they do not necessarily know how rockets and spacecraft actually work. Kids can use space-themed games based on physics to learn more about how metal cylinders full of propellant move and interact in space while still having fun. We talk about our example videos with a focus on kid space fans to help them get started. We use games that are currently available in stable releases, starting first with basic concept 2D games like Simple Rockets, and then to Spaceflight Simulator, which is also 2D. From there, we give examples of progressing to 3D motion …

The Rogue Alpha And Beta Mission: Operations, Infrared Remote Sensing, Leo Data Processing, And Lessons Learned From Three Years On Orbit With Two Laser Communication-Equipped 3u Cubesats, Dee W. Pack, Pradeep Thiyanaratnam, Brian S. Hardy, Tom Freeze, John R. Santiago, David Pietrowski, Michael Leon

Small Satellite Conference

The Aerospace Corporation's Rogue-alpha, beta program was a rapid prototyping demonstration aimed at building and deploying an infrared remote sensing capability into low Earth orbit within 18 months. The two satellites and their data were then used for three years as an experimental testbed for future proliferated low Earth orbit (pLEO) constellations. Their launch took place on November 2, 2019, followed by boost and deployment of two identical spacecraft (Rogue-alpha and beta) by the Cygnus ISS cargo vessel into circular 460-km, 52° inclined orbits on January31, 2020. The primary sensors were 1.4-micron band, InGaAs short wavelength infrared (SWIR) cameras with640x512 …

Attitude Determination And Control System With Variable-Speed Single-Gimbal Control Moment Gyroscopes For Nanosatellites, Jordan H. Hsieh, Thomas Yen, Sam Lee, Austin Chang, Luke Hou

Small Satellite Conference

This paper presents a novel Attitude Determination and Control System (ADCS) utilizing Variable-Speed Control Moment Gyroscopes (VSCMG) tailored explicitly for nanosatellites. The VSCMG was realized by spherical motor technology, in which a patented magnetic field design controls the inner rotor and gimbal. Because of the characteristics of the control moment gyroscope, the proposed ADCS offers improved attitude maneuverability and reduced power consumption, addressing the limitations of traditional ADCS solutions for nanosatellites. Furthermore, the adoption of spherical motor technology shrinks the VSCMG into a smaller form factor, which allows the VSCMG to be fitted into a nanosatellite. This research paper introduces …

Esep: An Experimental Onboard Computing System For Localized Capacity Building And Future Philippine Microsatellites, Kenneth John Ibarra, Floyd Ferrant Fortes, Elaiza Pontrias, Victor Joseph Ochave, Gracielle Capardo, Noniel Paul Novabos, Julie Ann Banatao, Marc Caesar Talampas

Small Satellite Conference

The Experimental Science & Engineering Payload (ESEP) platform is a bus and payload system designed to host and perform the functions of the primary components of a satellite bus system. This engineering platform is intended to act as an experimental redundant bus & payload system to the primary Diwata-2 system. This will allow testing of experimental bus and payload modules which will then be the base platform for future satellite developments in the Philippines for small satellites. The bus segment consists of the satellite command & data handling, satellite attitude control & management, and the communications subsystem. Consequently, the mission …

An Update On The Virtual Mission Control Room, Felix Sittner, Oliver Hartmann, Sergio Montenegro, Jan-Philipp Friese, Larissa Brübach, Marc Erich Latoschik, Carolin Wienrich

Small Satellite Conference

In 2021 we presented the Virtual Mission Control Room (VMCR) on the verge from fun educational project to testing ground for remote cooperative mission control. Since then, we successfully participated in ESA's 2022 campaign "New ideas to make XR a reality", which granted us additional funding to improve the VMCR software and conduct usability testing in cooperation with the chair of human-computer-interaction. In this paper and the corresponding poster session we give an update on the current state of the project, the new features and project structure. We explain the changes suggested by early test users and ESA to make …

Highly Miniaturized Swir Off-The-Shelf Camera Head For Space Applications, Julien Bezine, Charles Sellier, Ange Djouaka Nguimfac, Clément Delahouliere, Paul Serrano, Wissam Durand-Mouallem, Jean-Marc Belloir, Valerian Lalucaa, Cédric Virmontois

Small Satellite Conference

3D PLUS has developed in the framework of its camera products development, and in collaboration with the Centre National d'Etudes Spatiales (CNES), an off-the-shelf highly miniaturized SWIR camera head for space applications. This opto-electronic module has been integrated using 3D PLUS packaging technology and electronics design expertise to design a product as compact and optimized as possible, suitable for wide range of space applications. This poster presents the development and manufacturing of 3D PLUS 3DCM830 SWIR Space Camera Head.

Nasa Operational Simulator For Smallsats (Nos3) – Design Reference Mission, John P. Lucas, Matthew D. Grubb, Justin R. Morris, Mark D. Suder, Scott A. Zemerick

Small Satellite Conference

The NASA Operational Simulator for Small Satellites (NOS3) has undergone significant advances including updating the framework to be component based and expanding the open-source code to include a generic design reference mission to enable advanced technologies. This paper details the changes to the framework as well as a number of innovative use-cases the team is currently supporting such as 1) the expansion of NOS3 to support distributed systems missions in collaboration with NASA GSFC, 2) the integration of NASA JPL’s Science Yield improvemeNt via Onboard Prioritization and Summary of Information Systems (SYNOPSIS) for on-orbit science data prioritization, and 3) the …

Enabling Mission Success: A Student's Perspective On Developing A Ground Station, Sean Svihla, Adrian Bryant, Lucia Witikko

Small Satellite Conference

In recent years, The University of Colorado Boulder’s Laboratory for Atmospheric and Space Physics (LASP) has grown its SmallSat Operations (SMOPS) program into a large team of students and professionals managing the operations of multiple SmallSat missions. The team responsible for the on-site ground station (GSOPS) includes a small team of students alongside professionals who help manage the on-site UHF and S-band antennas, making use of open-source, commercial, and in-house software. In this process, the student ground station team has adapted the limited time and resources of a single ground station to accommodate the needs and science objectives of multiple …

Educational And Real-World Satellite Mission Operations Center At The Us Naval Academy, Noah Loftis, Ethan Schneider, Christine Maceo, Jin S. Kang, Michael Sanders

Small Satellite Conference

For successful satellite missions at the United States Naval Academy (USNA), a critical element is the
/="/">establishment of a capable and dynamic Satellite Mission Operations Center (SOC). In addition to powerful hardware, flexibility and adaptability allow the SOC to continue to support operations, even as new protocols arise and communication architectures change with the rapid pace of small satellite advancement. Software-defined radios (SDRs) provide the necessary flexibility for the SOC to easily change configurations and network with other ground stations. However, the resulting high-tech, turn-key operations of an advanced SOC tend to alienate students from hands-on learning experiences. The …

The U.S. Government's Global Food Security Strategy And The Effectiveness Of Agriculture-Led Growth Through The Perspectives Of Climate Change And Sustainability, Marcella Mcnerney

Capstone Collection

The United States Agency for International Development’s (USAID) Global Food Security Strategy Fiscal Year 2022-2026 addresses food security in developing countries. The U.S. Global Food Security Strategy set forth by USAID lays forth a strategy for increasing food security in twelve targeted low-income and developing nations. How well the USAID policy does this with consideration of climate change, sustainability, and socio-economic well-being is crucial to examine given the fact that climate change impacts and predictions are now affecting food systems at all stages, from growth through production. The following discussion combines elements of a policy brief and research paper to …

Safety Patrol: Mechanisms For Improving Emergency Response Times, Tracy Caivano, Paul B Giralt, David C White, Jr., Jason F Haase

Defensive Publications Series

To equip first responders with critical, time-sensitive information and accelerate emergency services response times, various solutions are provided herein through several techniques. Under a first technique, after an emergency event such as a gunshot is either automatically detected by a camera or manually initiated by a user, or when a dangerous object such as a gun is detected by a camera, a network may react by associating the source of the dangerous event or object with a person based on proximity data; identifying the physical characteristics of the person (such as height, hair color, clothing, visible tattoos, etc.); attaching such …

A Comparative Study Of A Machine Learning Approach And Response Surface Methodology For Optimizing The Hpt Processing Parameters Of Aa6061/Sicp Composites, Waleed H. El-Garaihy, Abdulrahman I. Alateyah, Mahmoud Shaban, Mohammed F. Alsharekh

Faculty Journal Articles

No abstract provided.

Vol.51 N.03 August 10th 2023, Voice Media Ventures

Black Voice News

No abstract provided.

Cover And Contents

Turkish Journal of Biology

No abstract provided.

A Diminutive New Basilosaurid Whale Reveals The Trajectory Of The Cetacean Life Histories During The Eocene, Mohammed S. Antar, Abdullah S. Gohar, Heba El-Desouky, Erik R. Seiffert

Faculty Journal Articles

No abstract provided.

Ranking And Analysis The Strategies Of Crowd Management To Reduce The Risks Of Crushes And Stampedes In Crowded Environments And Ensure The Safety Of Passengers, Waleed Tawfiq Al-Nami

Neutrosophic Systems with Applications

Public gatherings, transit hubs, stadiums, and crowded retail malls are just a few examples of places where crowd management has become an urgent issue in recent years. Effective crowd management strategies have been required due to the increasing population, urbanization, and frequency of large-scale meetings. These strategies are used in dynamic, sometimes chaotic, circumstances to protect people and facilitate their free movement. The purpose of this study is to analyze and rank various strategies for crowd management to reduce the risks of crushes and stampedes, improve security, and facilitate smoother traffic flow. This study used the single-valued neutrosophic set to …

A Call To Revolution, Howard Robinson

LWLC Faculty Research

On October 12, 1974, three African American Muslim men took over WAPX, a Rhythm and Blues radio station located on Dexter Avenue in downtown Montgomery, Alabama. During the siege the men announced on air that the “revolution has begun,” and then encouraged the African American population to join them in an armed confrontation with local police. An ensuing shootout brought 300 law enforcement officers to Dexter Avenue, where they rained thousands of bullets into the radio station. The standoff lasted almost three hours before the hostages escaped, teargas was employed, and a negotiator convinced the three men to surrender. While …

The Effects Of Elevation And Soaking Conditions On Dry Bean Cooking Time, Chelsea Didinger, Karen Cichy, Carlos Urrea, Madalyn Scanlan, Henry Thompson

Panhandle Research and Extension Center

Dry beans and other pulses (e.g., chickpeas and cowpeas) are nutrient-dense foods that promote human and environmental health. However, consumption is declining in many regions around the world. Addressing barriers to greater pulse intake is important to reverse this trend. Cooking time is one such barrier, with consumers viewing the long cooking times of many pulses as a hurdle to higher consumption due to lack of time or fuel availability. Equipping consumers with simple, accessible ways to reduce pulse cooking time is one way to mitigate this barrier. Accordingly, this study assessed changes to cooking time when pinto beans ( …

Physics-Guided Modeling Of Acoustic Environments Using Limited Spatio-Spectro-Temporal Data, Mylan Ray Cook

Theses and Dissertations

When creating data-based models it is important to include the underlying physical characteristics and constraints of the data. If physical characteristics are not properly included in the model, results may be infeasible or physically impossible. Acoustic environments are better characterized by ensuring that models include the fundamental spatial, spectral, and temporal characteristics of noise sources, or how they change based on location, frequency, and time. When model data are limited, in availability or in reliability, additional care must be taken to ensure models predict feasible results. This dissertation focuses on physics-guided modeling of acoustic environments using limited data, taking into …

A Step Into Structural Biology: Structural Determination Of Tnk1-Uba And Computational Design Of A Radical Sam Cyclase, Yi-Jie Tseng

Theses and Dissertations

Structural biology uncovers life's secrets by studying protein structures via techniques like X-ray crystallography. This knowledge drives advancements in protein engineering for the improvement of human lives. Yet, obtaining high-quality crystals in X-ray crystallography is challenging. To overcome this, we used Translocation ETS Leukemia protein Sterile Alpha Motif domain (TELSAM), a promising polymer-forming crystallization chaperone (PFCC), to enhance protein crystallization. Human thirty-eight-negative kinase-1 (TNK1), a key player in cancer progression, possess a ubiquitin association (UBA) domain that binds polyubiquitin and regulates TNK1 activity and stability. Although sequence analysis hints at an unconventional TNK1 UBA domain architecture, its molecular structure lacks …

Performance Analysis Of Vlc-Based Infrastructure-To-Vehicle Communication, Noura Elshabasy, Samy S. Soliman, Mohammad Abdellatif

Electrical Engineering

Infrastructure such as traffic signals are expected to communicate various safety messages as a part of the evolution of smart transportation networks. It is anticipated that hybrid Vehicle to Vehicle (V2V) and Infrastructure to Vehicle (I2V) communication links would be taken into account to further enhance the system performance and expand the reach and capacity of the network. This paper proposes a visible light communication (VLC) link by installing multiple Photo-Detectors (PDs) in I2V links in order to improve the Bit Error Rate (BER) performance of the system. The paper investigates the effect of the distances and received powers on …

Vitamin C And Total Soluble Solid Content Of Crystal Guava At Different Storage Duration And Ripeness, Abdul Khafid, Yulita Nurchayati, Endah Dwi Hastuti, Nintya Setiari

Jurnal Kultivasi

Crystal guava (Psidium guajava var. 'Crystal') fruit is in great demand because of its delicious taste and high nutritional content. Storage aims to prevent postharvest damage to the fruit. However, storage that is too long causes morphological damage and decreased nutrients. This study aims to determine the effect of storage duration, fruit ripeness stage and the interaction between both factors on vitamin C and total soluble solids (TSS) content of crystal guava, and determine which treatment can produce the highest vitamin C and TSS. Fruits harvested simultaneously with three levels of ripeness based on the skin color: unripe fruit is …

Computational Investigations Of The Water Structure At The Α-Al2o3(0001)-Water Interface, Xiaoliu Zhang, Christopher G. Arges, Revati Kumar

Faculty Publications

The α-Al2O3(0001)-water interface is investigated using ab initio molecular dynamics (AIMD) simulations. The spectral signatures of the vibrational sum frequency generation (vSFG) spectra of OH stretching mode for water molecules at the interface are related to the interfacial water orientation, hydrogen bond network, and water dissociation process at different water/alumina interfaces. Significant differences are found between alumina surfaces at different hydroxylation levels, namely, Al-terminated and O-terminated α-Al2O3(0001). By calculating the vibrational sum frequency generation spectrum and its imaginary component from AIMD results, the structure of interfacial waters as well as the termination of alumina slab are related to the spectral …

A Review With Updated Perspectives On In Vitro And In Vivo Wound Healing Models, Murni Nazira Sarian, Nabilah Zulkefli, Shazeli Zain, Sandra Maniam, Sharida Fakurazi

Turkish Journal of Biology

A skin wound or perforation triggers a series of homeostatic reactions to safeguard internal organs from invasion by pathogens or other substances that could damage body tissues. An injury may occasionally heal quickly, leading to the closure of the skin's structure. Healing from chronic wounds takes a long time. Although many treatment options are available to manage wound healing, an unmet therapy need remains because of the complexity of the processes and the other factors involved. It is crucial to conduct consistent research on novel therapeutic approaches to find an effective healing agent. Therefore, this work aims to cover various …

Re: Approval Letter For The Butte Priority Soils Operable Unit (Bpsou) Draft Final Insufficiently Reclaimed Sites – Field Sampling Plan (Fsp) Bres No. 66 – West Ruby Dump (Dated July 25, 2023), Nikia Greene

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Approval Letter For The Butte Priority Soils Operable Unit (Bpsou) Draft Final Insufficiently Reclaimed Sites – Field Sampling Plan (Fsp) Bres No. 66 – West Ruby Dump (Dated July 25, 2023), Nikia Greene

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Aquatic Insect Communities Remain Impaired Following Large-Scale River Restoration, Jared Meek, Jackson Birrell, Teagan Mulford, Dennis K. Shiozawa, C. Riley Nelson

Western North American Naturalist

River manipulation and degradation can cause detrimental impacts on aquatic insect communities. River restoration projects seek to mitigate these human disturbances. Assessing the efficacy of river restoration remains an important goal for river managers and conservation biologists so that improved restoration methods can be used in the future. From 1999 to 2008, the Utah Reclamation Mitigation and Conservation Commission restored a 15-km channelized portion of the Provo River (Wasatch County, Utah, USA). Before (1999) and during (2002) the restoration project, macroinvertebrate samples were collected using modified kick nets from 3 sites within the restored area and 1 site outside the …

Antioxidant Potential Of Nanomaterials, David Gonzalez Flores, Javier Espino, Jose A. Pariente

Turkish Journal of Biology

Background/aim: The novel field of nanomaterials allows infinite possibilities in order to create antioxidant therapies. The present review is aimed to describe the state of art concerning on nanomaterials and their effects on reactive oxygen species (ROS) production. A wide range of nanoparticles has been designed for this purpose, and each one possesses some particular characteristics which allow these significant antioxidant results. Several in vivo and in vitro works state the ability of these nanoparticles to mimic the redox systems of the cells, and thus, the potential role of nanoparticles as antioxidant treatment for several diseases. Materials and methods: This …

Targeting Of Notch, Il-1, And Leptin Has Therapeutic Potential In Xenograft Colorectal Cancer, Rumeysa Özyurt, Ni̇lüfer Erkasap, Mete Özkurt, Serdar Mustafa Erkasap, Konstanti̇nos Di̇mas, Ayşe Çakir Gündoğdu, Engi̇n Ulukaya

Turkish Journal of Biology

Background/aim: Colorectal cancer (CRC) is a fatal malignancy type and its occurence still needs to be explored mechanistically. Notch, IL-1, and leptin crosstalk is reported to play a role in the proliferation, migration, and expression of proangiogenic molecules. In this study, we aimed to investigate the effect of inhibition of Notch, IL-1, and leptin on CRC. Materials and methods: To generate colorectal cancer tumor xenografts, 1 × 107 cells from exponentially growing cultures of HCT15 cells were injected subcutaneously, at the axillary region of the left and right rear flanks of forty NOD.CB17-Prkdcscid/J (NOD/SCID) female mice. The mice were then …