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Canadian Food Production Subsystem Designs for a Lunar Agriculture Module - Ground Test Demonstrator (LAM-GTD)
No full textJared Stoochnoff, Canadian Space Agency, CanadaConrad Zeidler, Canadian Space Agency, CanadaMichel Franke, German Aerospace Center (DLR), GermanyVincent Vrakking, German Aerospace Center (DLR), GermanyVolker Maiwald, German Aerospace Center (DLR), GermanyDaniel Schubert, German Aerospace Center (DLR), GermanyICES204: Bioregenerative Life SupportThe 54th International Conference on Environmental Systems was held in Prague, Czechia, on 13 July 2025 through 17 July 2025.The ability to produce fresh food in situ will be a
beneficial addition to the future of sustainable lunar
surface exploration, reducing reliance on traditional
physiochemical life support systems and pre-packaged food
supplies from Earth. To advance Controlled Environment
Agriculture technologies and crew operations in preparation
for a Lunar Agriculture Module, the Canadian Space Agency
and the German Aerospace Center have conceptualized and
progressed the design of a Lunar Agriculture Module -
Ground Test Demonstrator. The purpose of this high-fidelity
demonstrator would be to increase the technology readiness
levels of all major greenhouse subsystems, simulate crew
operations, and inform engineering requirements for an
eventual lunar surface design. Canada will contribute to
the design of several key subsystems, including the
Nutrient Delivery System, the Light Control System, the
Versatile Assistant robotic arm, a Plant Health Monitoring
System, and technologies that could improve confidence in
the module's food safety processes. This paper outlines the
progress made to date on these key subsystems and how our
teams intend to use the Lunar Agriculture Module - Ground
Test Demonstrator to prepare for the challenge of a Lunar
Agricultural Module
Development of a Deployable Radiator Equipped with Loop Heat Pipes for High Throughput Communication Satellites
No full textTakeshi Miyakita, Japan Aerospace Exploration Agency (JAXA), JapanTakahiro Yabe, Japan Aerospace Exploration Agency (JAXA), JapanAtsushi Okamoto, Japan Aerospace Exploration Agency (JAXA), JapanTsutomu Fukatsu, Japan Aerospace Exploration Agency (JAXA), JapanTatsuya Kusashima, Mitsubishi Electric Corporation, JapanNorimasa Katayama, Mitsubishi Electric Corporation, JapanICES201: Two-Phase Thermal Control TechnologyThe 54th International Conference on Environmental Systems was held in Prague, Czechia, on 13 July 2025 through 17 July 2025.High heat-rejecting technology becomes increasingly
necessary as communication capacity
grows for the next generation of geostationary
communication satellites. Engineering Test
Satellite-9 (ETS-9), to be launched in fiscal 2025 or
later, is being developed by the Japan
Aerospace Exploration Agency (JAXA) to demonstrate its
innovative bus technology for high-
throughput communication satellites. The main technologies
to be newly developed for the
ETS-9 are high electrical power supplies, electric
propulsion, and high heat rejecting
technology. Although it is not installed on the ETS-9
flight model, we have developed a
deployable radiator (DPR) equipped with loop heat pipes
(LHPs) that have completed
qualification testing (QT). Since the DPR is equipped with
a flexible heat transport device
using an LHP, the DPR can unfold 180o after launch to
dissipate heat efficiently into space.
QT included a deployment test and performance evaluation of
its heat-rejecting capacity. In
addition to the qualification tests, we conducted long-term
operation tests using a breadboard
model (BBM) and tests in the microgravity environment of
the International Space Station
(ISS), confirming the design’s high reliability. The
long-term operation test using the LHP
BBM determined that no non-condensable gas (NCG) was
generated after high-temperature
operation for seven years, from the end of May 2017 to the
end of February 2025. This paper
describes the results of the DPR qualification test, an
overview of the in-orbit pre-
demonstration of LHP, and an overview of the long-term
operational test using LHP BBM
Development and Validation of a Novel Instrumented Thermal Hand Manikin for the Evaluation of Lunar Gloves
No full textRick Burke, Thermetrics, United StatesEvan Deans, Thermetrics, United StatesRobert J. Jones, Leidos / KBR HHPC / NASA Johnson Space Center, United StatesDanielle Morris, National Aeronautics and Space Administration (NASA), United StatesMorgan Abney, National Aeronautics and Space Administration (NASA), United StatesAnthoney Shawn Deaton, Textile Protection and Comfort Center (TPACC), United StatesNoah Andersen, HX5 LLC, United StatesBruce Conger, Amentum, United StatesShane McFarland, Aegis Aerospace / KBR HHPC / NASA Johnson Space Center, United StatesICES407: Extravehicular Activity: Emerging Space Suit
TechnologiesThe 54th International Conference on Environmental Systems was held in Prague, Czechia, on 13 July 2025 through 17 July 2025.Under this project, a novel thermal hand manikin was
developed and validated to overcome limitations of existing
instruments and provide a repeatable tool for ongoing
extravehicular activity (EVA) glove evaluation. Initial
development included creating computer aided design (CAD)
and physical models of hand forms that met characteristic
dimensions and could be fitted into a glove. Subsequent
development focused on the manikin thermoregulation system,
sensors, and data acquisition. The final design consisted
of a four-piece hand manikin with fluid-regulated nylon
shell, and 15 miniature surface-mounted temperature/heat
flux sensors. The instrument was constructed and validated
for thermal stability, accuracy, and correlation with an
existing thermal hand instrument. The final system
integrates directly with the Jet Propulsion Laboratory
Cryogenic Ice Testing, Acquisition Development, and
Excavation Laboratory (CITADEL) test chamber for ambient
exposure and cold surface contact testing
Overview of the Space Toilet History
No full textPetr Andreychuk, RSC Energia - retired, United StatesStephanie Walker, Space Walkers-42, United StatesICES304: Physico-Chemical Life Support- Waste Management
Systems- Technology and Process DevelopmentThe 54th International Conference on Environmental Systems was held in Prague, Czechia, on 13 July 2025 through 17 July 2025.One of the most critical parameters of life support for
receiving, storing, and disposing of human waste has been
provided throughout the history of manned spaceflight by
the development and application of a wide variety of toilet
systems, ranging from disposable equipment in short-term
spaceflights to complex systems with waste pre-treatment as
part of the regeneration complex of orbital stations. The
history of space toilet development and application from
1961 to the present is part of the history of life support
system development, including the vast experience of
successful solutions, elimination of errors and
shortcomings, and development along with improvements in
space technology. Knowledge of this history is useful to
design engineers, operations engineers, and astronauts, and
is critical to the successful design of toilet systems for
new space missions. The paper provides an overview of space
toilet means and systems, their design and operational
history from the first manned missions, the Apollo and
Soyuz spacecraft, the Skylab, Salyut and MIR orbital
stations, the Space Shuttle and Crew Dragon spacecraft, to
the ISS. The paper also provides a comparative analysis of
the principle schemes, designs, and technologies used for
urine and feces collection, urine separation, storage and
pre-treatment, and waste disposal. Specific features of
in-flight operation of space toilets from the point of view
of reliability and comfort are considered separately,
examples from the history of failures of in-flight toilets
and their elimination are given, with conclusions on the
results of operation on the directions of further
improvement of such systems
Exploring Trainee Counselors' Implicit Bias Towards Sexual Minority Men: Investigating the Impact of Client Sexual Orientation on Perceptions of Locus of Causality and Symptom Severity
No full textEthical obligations for counselors at all stages of professional identity development and training mandate that counselors promote the general welfare of their clients and avoid causing harm. Moreover, counselors at all levels of experience must refrain from imposition of values and treat a diverse range of clients with dignity, respect, and clear therapeutic judgement. Counselor educators work to facilitate growth and development within counselors-in-training toward integration of professional and personal values to help achieve these ethical obligations.
The present study utilized Microaggression Theory and the Shifting Standards Paradigm as a foundation and conceptual framework to assess the effectiveness of current pedagogical efforts to teach and facilitate the understanding and internalization of the ACA Code of Ethics and the Multicultural and Social Justice Counseling Competencies. A sample of 65 counselors-in-training were recruited from across the United States. Participants read a fictional case vignette and then completed two quantitative survey instruments followed by a brief demographics questionnaire. The General Linear Model was utilized to conduct univariate analysis between the predictor variable of the sexual orientation of the fictional client and the criterion variable of the participant scores on the Initial Client Impression Inventory – Revised and both the composite and locus of causality subscale of the Causation Dimension Scale – II. Several significant results were found, including significant main effects and interactions regarding age range and sexual orientation. Moreover, a higher than expected non-response rate was reviewed and analyzed
Ultrawide bandgap semiconductor h-BN for direct detection of fast neutrons
No full textIII-nitride wide bandgap semiconductors have contributed on the grandest scale to many technological advances in lighting, displays, and power electronics. Among III-nitrides, BN has another unique application as a solid-state neutron detector material because the isotope B-10 is among a few elements that have an unusually large interaction cross section with thermal neutrons. A record high thermal neutron detection efficiency of 60% has been achieved by B-10 enriched h-BN detectors of 100 μm in thickness in our group. However, direct detection of fast neutrons with energies above 1 MeV is highly challenging due to the extremely low interaction cross section of fast neutrons with matter. We report the successful attainment of 0.4 mm thick freestanding h-BN 4″-diameter wafers, which enabled the demonstration of h-BN fast neutron detectors capable of delivering a detection efficiency of 2.2% in response to a bare AmBe neutron source. Furthermore, it was shown that the energy information of incoming fast neutrons is retained in the neutron pulse-height spectra. A comparison of characteristics between h-BN fast and thermal neutron detectors is summarized. Neutron detectors are vital diagnostic instruments for nuclear and fusion reactor power and safety monitoring, oil field exploration, neutron imaging and therapy, as well as for plasma and material science research. With the outstanding attributes resulting from its ultrawide bandgap (UWBG), including the ability to operate at extreme conditions of high power, voltage, and temperature, the availability of h-BN UWBG semiconductor detectors with the capability of simultaneously detecting thermal and fast neutrons with high efficiencies is expected to open unprecedented applications that are not possible to attain by any other types of neutron detectors
Life After Surviving Bullying as Minors: Female Licensed Professional Counselors Who Recover from Triggering Events in Adulthood
No full textAccording to the National Center for Education Statistics, over 5 million adolescents are bullied during school. A slightly higher portion of students who identify as female rather than as male report being bullied at school, and a higher percentage of females than males attempt suicide. The purpose of this qualitative phenomenological study was to explore the experiences of female licensed professional counselors who overcame barriers associated with childhood and/or adolescent bullying to report self-perceived success. The study examines their lived experiences to find out what motivated and encouraged them to keep going beyond surviving to overcome triggers encountered during adulthood. Within this study, the keys to overcoming the negative effects of bullying and unlocking the healing, growth, and coping strategies within young girls and women who have been bullied as minors are explored through the lens of resiliency theory. Research findings, implications, limitations, and recommendations for future research are discussed in depth
Experimental Investigation of the Impact of Injection Strategies in CO2 Storage Applications
No full textThis study explores the integration of multiple scientific disciplines to address the challenges and opportunities in expanding CO2 storage technologies, particularly in sandstone and carbonate formations. By employing different CO2 injection strategies and varying the salinity of injection water, the research mimics the use of produced water (PW) in Water-Alternating-Gas (WAG) and Supercritical Alternating Injection (SAI) strategies. These approaches aim to enhance CO2 storage capacity while managing PW disposal from the oil and gas industry, offering a dual benefit of environmental impact mitigation and optimized carbon sequestration.
Two novel injection strategies were explored in detail and compared with the traditional method. The WAG method successfully preserved rock properties, effectively maintaining mechanical strength and enhancing CO2 trapping efficiency. This method alternates between CO2 and water injections, which dilutes the aggressive effects of CO2 on rock formations and ensures the structural integrity of sandstone and limestone. As a result, WAG offers a more stable long-term storage solution in saline formations by preventing rapid mineral dissolution and helping maintain porosity and permeability. This also affects injected brine salinity below 50g/L.
The SAI method, while equally effective in trapping CO2, has been shown to cause more significant changes in the mechanical properties of the rock, especially in high-salinity conditions. This strategy accelerates mineral dissolution, particularly in limestone formations, which leads to a decline in permeability and mechanical strength over time. Though SAI provides an efficient method for CO2 trapping, the mechanical weakening of rock formations under this method poses a higher risk to long-term reservoir stability.
Both strategies contribute to an optimized storage mechanism by balancing the effects of salinity, ensuring that key rock properties remain largely intact while providing an environmentally friendly method for PW disposal. The research highlights that salinity variations significantly influence reservoir rocks' geomechanical and petrophysical properties, with the WAG method emerging as a preferred approach for minimizing adverse effects while maintaining CO2 storage efficiency; however, SAI methods gave a detrimental result for both limestone and sandstone.
In conclusion, this study emphasizes the significance of the WAG method for the oil and gas industry and broader environmental applications. By integrating CO2 storage with PW management, WAG presents a viable solution for expanding carbon capture and storage (CCS) technologies. Its ability to enhance geological stability, combined with efficient CO2 trapping mechanisms, positions it as a crucial tool in mitigating climate change and advancing the sustainability of energy production practices
Investigating Quantum Capture Probabilities for α − α Fusion Using Quantum Trajectories
No full textA unipolar synthetic quantum trajectory method (QTM) was used to calculate the
quantum capture probabilities for the simulation of beryllium-8 formation resulting from
alpha-alpha particle fusion with various values of the incident energy. The QTM approach
was used in one dimension with calculations performed using the quantum stationary
Hamilton-Jacobi equation (QSHJE). The São Paulo Potential (SPP) provided by B.V.
Carlson was the nuclear model used to simulate the interaction between the two nuclei. A
theoretical analysis of the underlying concepts, the functioning algorithms in Mathematica
used for their application, and the numerical stability and limitations of the results are
presented. Additionally, preliminary work with a symmetric Eckart-A Barrier is discussed
Window-Shopping for Affection: How Trait affection Relates to Tinder Users’ Self-Perceived Satisfaction
Get PDFThe present study examined if trait affection given, which is the type and amount of affection one person expresses to another person, related to Tinder, a dating application, by measuring the uses and gratifications and the feelings of satisfaction with the app’s usage. U.S. adults (N = 222) who used Tinder were given a 3-5 minute survey relying on Likert-type scales that asked about their level of affection given to others (e.g., “When I feel affection for someone, I usually express it”), their motivations for using Tinder (e.g., “To learn to flirt”), and their overall satisfaction with their app usage. The study utilized descriptive statistics and a correlational approach for variable examination. Results indicate a significant relationship does not exist between trait affection and Tinder use or Tinder satisfaction. However, there is a significant relationship between casual-sex-seeking users and their satisfaction levels (p = .011). Participants who aimed to use Tinder for casual sex purposes rather than those who sought relationship seeking purposes were more satisfied with Tinder. Practical implications are discussed. Given its widespread use, more research must be conducted to better understand Tinder in relation to affection