Digital Commons Network^™

Accelerating Marine Science And Technology Innovation Under Great Power Competition: Challenges And Recommendations, Qingbin Guo, Yongsha Xiong, Shifang Sun

Bulletin of Chinese Academy of Sciences (Chinese Version)

Against the backdrop of intensifying great-power competition, the core issues of global technological competition and cooperation are increasingly converging on the marine domain. The oceans are progressively becoming a critical strategic sphere for national development and security. At present, China is steadily advancing towards its goal of becoming a maritime power, achieving historic leaps in technological innovation such as shipbuilding and deep-sea exploration. Nevertheless, the path ahead for China’s marine science and technology innovation will inevitably face severe international circumstances and competition from established global maritime powers. Based on a review of global and Chinese progress in marine science and …

Construction Of China’S Marine Protected Area System In 15th Five-Year Plan, Ke Duan, Danhong Chen, Keqiang Li, Limin Han, Zhengyan Liu, Dongliang Lu, Xiulin Wang

Bulletin of Chinese Academy of Sciences (Chinese Version)

The establishment of the marine protected area (MPA) system constitutes a critical component of the national initiative to comprehensively advance the development of a nature reserve system centered on national parks. This study explores on domestic and international development trends from aspects such as conservation strategies, international policies, high seas protection, and development trends. It also sorts out and analyzes the construction status of marine protected area systems in China and the United States. Centering on issues in China related to spatial layout, management systems, policies and laws, scientific research support, high seas governance, and land-sea management, the study puts …

Strategic Talent Management In Era Of Intelligence And Digitalization: Current Situation And Path Exploration, Chaoying Tang, Chunyuan Wang

Bulletin of Chinese Academy of Sciences (Chinese Version)

The report of the 20th National Congress of the Communist Party of China emphasized “speed up efforts to build a contingent of personnel with expertise of strategic importance” to support China’s pursuit of high-level technological self-reliance and its goal of becoming a world-leading power in science and technology. The deep integration of digital and intelligent technologies is fundamentally transforming talent management paradigms and innovation processes, posing new demands on the knowledge structure, competency models, and management approaches of strategic talents. The study explores the concepts of strategic talent management in the digital intelligent era, establishes its logical framework, analyzes current …

Panoramic Analysis And Strategic Proposals Of Helium Research In China Based On Knowledge Graph, Huayang Li, Quanyou Liu, Dongya Zhu, Xiaoqi Wu, Chi Zhang, Zehui Shi

Bulletin of Chinese Academy of Sciences (Chinese Version)

Helium is a critical rare gas essential for aerospace, medical devices, and semiconductor production. With about 85% of its helium coming from imports, China’s advancement of exploration and development technologies is vital for national resource security. This study analyzes helium-related publications from CNKI (2000–2025) using advanced data visualization and statistical methods. It introduces a three-pronged approach–data-driven analysis, visual representation, and mechanistic explanation–to offer the first comprehensive examination of China’s helium exploration and development research, revealing its evolution and current state from multiple perspectives and providing fresh insights. By examining publication trends, institutional contributions, and evolving research priorities, the study maps …

Southeastern United States African American Business Leaders’ Effective Business Profitability Strategies, Maurice Chamblin

Walden Dissertations and Doctoral Studies

African American business leaders in the United States experience persistent operational constraints that affect business sustainability and long-term profitability. These leaders face recurring challenges in accessing capital, securing managerial support, and effectively utilizing resources, which may hinder their ability to remain viable and competitive. Grounded in resource-based view theory, this qualitative pragmatic inquiry project aimed to identify and explore the practical strategies used by African American business leaders in the Southeastern United States to increase their business profitability over more than 5 years. The participants were six African American business leaders from the Southeastern United States who had grown their …

Traditionally Certified, Second-Career Teachers’ Perceptions Of Intent To Stay In The Classroom, Tara L. Wells

Walden Dissertations and Doctoral Studies

The problem that was addressed through this study was the high teacher turnover, including traditionally certified, second-career teachers (TCSCTs), in United States classrooms, despite support and additional resources provided. The purpose of this qualitative study was to examine TCSCTs’ perceptions on the reasons and their recommendations to remain in the classroom. Ingersoll's teacher turnover and retention framework was used to conceptually frame this study. Using a basic qualitative design, semistructured interviews were conducted with 12 TCSCTs. Data were analyzed through thematic analysis. The following themes emerged: TCSCTs remain in the profession primarily due to a sense of purpose in their …

Burnout And Secondary Traumatic Stress Experiences In Mental Health Professionals Working With Military Veterans, Megan Carter

Walden Dissertations and Doctoral Studies

Burnout among mental health professionals has been a long-standing phenomenon when working with trauma individuals resulting in increased job turnover rates and decreased quality of care for patients. The job demands- resourced model and constructivist self- development theory were used to guide this study. The purpose of this research study was to explore how mental health professionals working with the military veteran population experience burnout and secondary traumatic stress. A descriptive qualitative design was used with purposive and snowball sampling to attain 10 mental health professionals from various facilities serving military veterans. Data were collected from semistructured interviews and were …

From Browsing To Building: Navigating Your Google Resource Space (Drive & Site), Libby Cunningham

Capstone Projects

This capstone project aimed to develop a trauma-informed, evidence-based support hub for Court Appointed Special Advocates (CASA) working with children involved in the foster care system. CASA advocates are frequently exposed to secondary trauma, burnout, and compassion fatigue, which can impact their effectiveness and overall well-being. Additionally, trauma exposure significantly affects children’s emotional regulation, behavior, and participation in daily occupations. The primary objective of this project was to design, develop, and organize a comprehensive digital resource platform tailored to the needs of Kalamazoo CASA and their active cases. Utilizing evidence-based literature on trauma-informed care and secondary trauma, relevant resources were …

The Missing Link Between Occupational Therapy And Hemodialysis: Program Development And Implementing Intradialytic Ot In A Rural Hospital Setting, Madison Maki

Capstone Projects

Occupational therapy (OT) has demonstrated effectiveness in supporting individuals undergoing hemodialysis, a life‑altering yet lifesaving treatment for end‑stage renal disease (ESRD) and chronic kidney disease (CKD). Despite this, hospitalized patients who require dialysis often receive reduced rehabilitation services due to the time‑intensive nature of dialysis and the productivity demands placed on therapists. Additionally, gaps in therapist knowledge regarding the unique functional deficits and educational needs of this population further limit service delivery.

This doctoral capstone project (DCE), conducted at Upper Peninsula Health System (UPHS), a hospital in rural Northern Michigan, addressed these barriers through the development of a comprehensive resource …

Development Of 6-Week Tier 2 Intervention Tracks Within An Elementary Mtss Framework, Maxwell Lyle

Capstone Projects

The Multi-Tiered System of Supports (MTSS) is designed to provide levels of support with differing intensity that align with student needs. Tier 1 is universal instruction provided to all students in the classroom. Students who do not demonstrate adequate progress may receive Tier 2 interventions, which are primarily small-group and, when appropriate, individual interventions that are skill-specific, time-bound (6–8 weeks), and include progress monitoring. Students who do not respond to Tier 2 may require Tier 3 supports, which are intensive, individualized interventions. Many school systems lack consistent, structured Tier 2 supports, particularly in Occupational Therapy-related skills, such as fine motor …

Addressing Barriers To Occupational Therapy Access For Foster Youth Through Advocacy And Education, Josephine Sanders

Capstone Projects

Occupational therapy (OT) is well positioned to support regulation, sensory processing, and participation in daily activities, yet its role in trauma-informed care is often underrecognized. Foster youth experience disproportionately high rates of trauma exposure, which can affect emotional regulation, behavior, relationships, and participation in meaningful occupations. Despite these needs, barriers within healthcare systems and limited awareness of OT’s role often prevent foster youth from accessing services.

This doctoral capstone experience focused on increasing access to OT for foster youth through advocacy, education, and advanced clinical learning and practice. The experience took place at CAYA Therapies in Grand Rapids, Michigan, where …

Culturally Responsive Trauma-Informed Care: A Crosspollination Through Content Analysis, Ryan Andrew Partika

LMU Theses and Dissertations

The purpose of this research was to investigate additional ways trauma-informed care can have more of a whole child approach, especially for the most vulnerable students. This research, with an eye on the most vulnerable, addressed the following a guiding question: what would a traumainformed system of care look like with a social justice dimension? To gain a better understanding of such a possibility, this research used a content analysis of the literature on trauma-informed care. From the literature, it became apparent cultural responsiveness has often been suggested as a needed addition for trauma care but has never been fully …

Gathering Places: Indigenous Resources, Economies, And Diplomacy In The Northeastern Great Plains, 1650 – 1806 Ce, Matthew D. Busch

History Theses, Dissertations, and Student Creative Activity

Centuries before European arrival in the Great Plains region of North America, Indigenous exchange networks connected people within the continental interior to the Atlantic and Pacific oceans and the Gulf Coast. Throughout this vast Native Space, Indigenous peoples sought new resources and opportunities to create sustainable and successful lifeways by harnessing the spiritual, economic, and political power of place as they journeyed across the landscape.

The Coteau des Prairies centrally located between the Missouri, Mississippi, and Hudson's Bay watersheds within the Northeastern Great Plains represents a unique place of power. This imposing glacially modified landscape characterized by numerous lakes, fertile …

Teachers' Perceived Impact Of Teacher-Led Committees On Agency And Morale, Sherry Wibben

Dissertations

The action research study examined how participation in teacher-led committees influenced teachers’ perceptions of agency and morale within an urban Midwestern high school. Grounded in theories of shared and distributed leadership, the study addressed a problem of practice centered on limited teacher voice, fragmented communication, and inconsistent collaborative structures. A convergent mixed-methods design was employed to evaluate changes in teacher morale and professional agency following implementation of teacher-led committees.

Quantitative data were collected using Wong’s (1991) Staff Morale Questionnaire (SMQ), measuring leadership synergy, cohesive pride, and personal challenge. Surveys were administered at baseline (N = 30) and endline ( …

Eating Vs. Competing: Comparing Pressures Of Disordered Eating In Lean And Non-Lean Sports, Brielle G. Newland, Meredith Meyer

Undergraduate Honors Thesis Projects

In the current study, I compared the risk factors of disordered eating between athletes in weight dependent and non-weight dependent sports, specifically the motivating pressures to pursue this behavior. Weight dependent or “lean athletes” participate in sports with emphasis on weight, size, or bodily appearance. Non-weight dependent or “non-lean athletes” participate in sports without emphasis on weight or aesthetics, which tend to be team sports. While there are many different disordered eating risk factors in athletics, the current study focused on sport based pressures and societal based pressures. Participants included undergraduate student athletes on female athletic teams or dance minors …

Review On Optimization Of Simulation Modeling Strategies For Spacecraft Orbit Avoidance, Guozheng Li, Rui Wang, Shichao Fan, Xintong Cai, Xinyue Zhai

Journal of System Simulation

Abstract: The number of on-orbit spacecraft increases exponentially; the space environment becomes more complex, and the collision risk of on-orbit spacecraft increases significantly. On-orbit safety is thus severely threatened, posing higher requirements for orbit avoidance methods. The costs and risks of space activities are extremely high, making simulation an effective method to solve complex problems of orbit avoidance. The modeling, solution, and simulation methods for the two core issues of spacecraft orbit avoidance, "collision avoidance" and "pursuit-evasion games", were systematically reviewed, and the existing shortcomings were analyzed. The applications of technologies such as deep reinforcement learning in promoting orbit avoidance …

A Bilstm+Attention Method For Predicting The Intentions Of Air Combat Targets Based On Multi-Feature Continuous Time Series, Qiuni Li, Dong Wang, Chaozhe Wang, Zongcheng Liu

Journal of System Simulation

Abstract: To achieve advance prediction of enemy target intention, a three-layer air combat intention prediction method based on multi-feature continuous time series and BiLSTM+Attention, including trajectory prediction, threat assessment, and intention prediction was proposed. To prevent the onesidedness of intention prediction results caused by state information at a single moment, prediction was carried out from multiple state features and trajectory information in a continuous time series. An LSTM neural network was used to predict the trajectory of the target aircraft, and the threat assessment of the target aircraft before and after the prediction was conducted. The BiLSTM + Attention model …

Optimization Of Air Defense And Antimissile Firepower Resource Allocation Based On Adaptive Hybrid Evolution, Wei Liu, Delong Chen, Ze Liu, Rui Wang, Kaiwen Li, Tao Zhang

Journal of System Simulation

Abstract: Air defense and antimissile firepower resource allocation is a core optimization problem in modern defense systems. Under complex conditions such as spatiotemporal constraints and firepower resource limitations, this problem involves the optimal configuration of limited interceptors and belongs to the class of NP-hard multi-constrained combinatorial optimization problems. This paper established a comprehensive mathematical model encompassing range constraints, time window constraints, feasibility matrices, and interception probability models. To address the high-dimensional nonlinearity of the problem, an adaptive hybrid evolutionary algorithm (AHEA) was proposed. The algorithm integrated problem-aware initialization, adaptive parameter control, seven specialized neighborhood search operators, and an adaptive strategy …

Mechanism Analysis Of Parasitic Torque In Electric Loading Systems, Xiaozhe Sun, Zhenyu Fu, Zhaoke Xu, Jianxin Li

Journal of System Simulation

Abstract: To address the issues of sources and mechanisms of parasitic torque in electric loading systems for aircraft actuator loads, a functional model of the electric loading system was established. Numerical simulations and Monte Carlo methods were employed to analyze the sources of parasitic torque and its primary influencing factors. The influence mechanisms and degrees of the system's external inputs and internal disturbances on parasitic torque were analyzed and validated through single-parameter and multi-parameter analyses. The results indicate that parasitic torque is predominantly influenced by factors such as loading command frequency, sensor signal bias, and loading motor parameters. In particular, …

Simulation On Water Hammer Characteristics Of Bipropellant Attitude And Orbit Control Propulsion System, Xianwei Lang, Yantao Wang, Fang Zhang, Yizhen Zu, Xinyu Zhang, Weibin Xiang

Journal of System Simulation

Abstract: To address the water hammer problem in bipropellant attitude and orbit control propulsion systems during start-up, shutdown, and periodic operation, the water hammer characteristics under different operating conditions are investigated using simulation methods. The water hammer characteristics of annular and branched propellant delivery lines are compared, and the effects of multiengine interactions under various operating conditions, as well as the influence of water hammer on engine performance, are analyzed. The results show that the attenuation rate of pressure fluctuation in the annular pipeline system is significantly higher than that in the branch pipeline system. Under the condition of multi-cycle …

Design And Application Of Collaborative Simulation System For Satellite Constellation Flight Missions, Dong Yan, Hanzhe Yang, Fangfang Jiang, Chengbao Liu, Peng Zhang

Journal of System Simulation

Abstract: To meet the requirements of the collaborative drill for the ground operation and control system of the satellite constellation, as well as the verification and evaluation of in-orbit complex missions, the design ideas and implementation methods of the collaborative simulation system for satellite constellation flight missions were proposed. By adopting the time correction mechanism of the time-scale distributor, the time synchronization problem among the simulation nodes and the operation and control simulation system was solved. By adopting the communication technology based on improved PDXP + UDP, the problem of cross-node data interface and inter-satellite communication simulation was resolved. A …

Overall Design Method Of Low Earth Orbit Communication Satellite Based On Mbse, Jiace Shang, Rui Zhang, Ya Dai, Hua Zhu, Siqi Hu, Linqiang Ge, Chenguang Shi

Journal of System Simulation

Abstract: Drawing on the model-centric design philosophy of model-based systems engineering (MBSE), this study constructs a model architecture suitable for the design and analysis of low Earth orbit communication satellites. This architecture adopts a multi-dimensional matrix approach. Vertically, it traverses the mission layer, system layer, satellite general design layer, and subsystem layer, achieving top-down hierarchical decoupling. Horizontally, it establishes a comprehensive view mapping mechanism covering the domains of requirements, functions, structure, and performance. Integrating the characteristics of product development, a modeling process covering the entire lifecycle—from mission demonstration and overall design to subsystem design and integration verification—has been established. The …

Biomass Fuel Processing, Mineral Matter Engineering, And Ash Phase Equilibria For Deposition Control In Coal To Biomass Boiler Conversion, Spencer Bandi

Theses and Dissertations

As the conversion of coal utility boilers to 100% biomass combustors gains traction, understanding the interconnected impacts of harvesting and storage methods, fuel preparation, and thermochemical ash behavior is critical. This study evaluates miscanthus, switchgrass, and corn stover, targeting a < 1000 µm particle size through minimal (shredders/hammer mills) and heavy (pelletizing) pre-treatment. While heavy pre-treatment failed in a coal mill, minimal pre-treatment succeeded. Miscanthus (forage-harvested/silage-bagged) proved optimal, exhibiting minimal exogenous mineral accumulation up to (1.26 w%) and the smoothest mechanical feeding (deviation < 9%) due to its low particle aspect ratio. Conversely, baled switchgrass and corn stover accumulated up to 9.23 w% mineral matter and exhibited severe feeding resistance (>17% deviation) driven by fibrous, high-aspect-ratio morphologies. During combustion, agricultural residues yield low ash fusion temperatures (AFTs), generating deposits two to three times stronger than coal. To mitigate this severe fouling, mineral additives (coal fly ash, lime, and cement kiln dust) were injected. These additives effectively raised bulk AFTs and reduced deposit tenacity by up to 73%. Specifically, 2 w% …

Nightlights For Older Adults: Enhancing Bedroom-To-Bathroom Transitions With Community Resident Feedback, Yue Luo, Aubrey Contreras, Susana Valdivia-Rivas, Yuhao Chen, Boyi Hu

Faculty Research, Scholarly, and Creative Activity

This study aimed to inform nightlight design by analyzing older adults’ subjective feedback and kinematic responses during evening activities. Twenty-seven older adults (mean age: 81 ± 6 years; 14 females) participated in the study. Their preferences for nightlight illuminance and hue were surveyed, and gait and posture adaptations under two illuminance levels were analyzed using spatiotemporal comparisons, principal component analysis (PCA) based analysis, and waveform reconstruction. The results revealed that older adults preferred low illuminance over high illuminance, with warm white and cool colors as the favored choices for evening lighting. Significant differences were observed in spatiotemporal gait variables, particularly …

When The States Lost Their Senate: The Seventeenth Amendment, Katelyn King

Honors College Theses

To what extent has the Seventeenth Amendment impacted American federalism? The Seventeenth Amendment changed the way United States Senators are chosen from state legislature appointment to popular direct election. However, the framers of the U.S. Constitution established the original method for selecting U.S. Senators to safeguard an important principle in America’s government: federalism. If the Seventeenth Amendment decreased direct state influence in the federal government, it could have weakened federalism in America; consequently, the amendment may have altered how the American system of government is supposed to function. The U.S. Senate’s selection process was not only a safeguard for federalism …

Exploring Alternate Methods Of Flood Output Estimation During Natural Disasters, Finley Gardner

Honors College Theses

In April of 2025, extreme flooding damaged many homes and buildings of people across Kentucky. The Federal Emergency Management Agency (FEMA) produces maps that show the potential for flooding in areas around water bodies, but many of the April flooding damaged areas were well outside of the FEMA classification zones. The main purpose of this thesis research was to create an accurate model of potential flood extent in Kentucky and compare it to FEMA maps. This model did not require extensive computing power and produced a map that accurately depicted flood extent through the use of Digital Elevation Model (DEM) …

Lanthorn, Vol. 60, No. 15, April 20, 2026, Grand Valley State University

Volume 60, August 4, 2025 – April 20, 2026

Lanthorn is Grand Valley State's student newspaper, published from 1968 to the present.

Does Ethnic Identity Moderate The Association Between Ethnic Discrimination And Gambling Harm Among Hispanic Or Latino/A/X College Students, Adrianna Jordan Valencia

Electronic Theses and Dissertations Archive

No abstract provided.

Economic Sanctions And State Capacity In Target Countries, Showrav Paul

Electronic Theses and Dissertations Archive

The thesis examines whether economic sanctions erode the target countries’ state capacity and whether these effects differ by the identity of the sanctioning actors. Drawing on “the naïve theory of sanctions”, the thesis hypothesizes that economic sanctions reduce fiscal and administrative capacity but incentivize military capacity. By incorporating data from the Global Sanctions Database, the World Bank, and the V-Dem datasets, the thesis employs country-fixed-effects models to test hypotheses. The overall findings contradict the naïve assumptions and indicate that sanctions have limited efficacy in undermining the state capacity of target countries. The results can be summarized as follows: 1) economic …

Libraries And Librarians Get After Participatory Science, Catherine Wong, Megan Bresnahan

Faculty Publications

No abstract provided.