Aerospace Engineering Commons^™

Benefits And Challenges Of Constructing Low-Altitude Air Route Network Infrastructure For Developing Low-Altitude Economy, Xiaohan Liao, Chenchen Xu, Huping Ye

Bulletin of Chinese Academy of Sciences (Chinese Version)

Low-altitude airspace is a resource that needs to be fully explored, and the low-altitude economy is a new type of economic activity resulted from low-altitude airspace exploration and utilization. As the primary players of low-altitude flight activities, the commercialization and wide applications of unmanned aerial vehicles (UAVs) are promoting the prosperity of the low-altitude economy. A low-altitude air route network is an effective means to ensure the safe and efficient operations of a large number of UAVs, and it is also a new key infrastructure hosting low-altitude traffic. The history shows that the investment on public transport infrastructure as a …

Situation And Challenges In Development Of China’S Commercial Aerospace, Chaofeng Huang, Chao Zhang, Jinge Li, Mengru Dong

Bulletin of Chinese Academy of Sciences (Chinese Version)

Commercial aerospace is an important support for the national aerospace power strategy and a “new growth engine” for economic development, serving as a strategic pivot to win the future competitive landscape. Currently, China’s commercial aerospace industry is facing a mixed and urgent situation. On the one hand, the international competition situation is severe, with frequency track resources being seized and squeezed, international rules being passively constrained, and global market breakthroughs being hindered. On the other hand, domestic development opportunities are highlighted. The multidimensional support of central local cooperation is constantly strengthening, and the development prospects driven by industrial demand are …

Beyond Innovation Paradox: Practices And Reflections On Promoting High-Quality Development Of Commercial Aerospace With Low Costs, Chao Zhang, Qianshu Shi, Binbin Meng, Quan Cheng, Jun Zhao, Weitao Wu

Bulletin of Chinese Academy of Sciences (Chinese Version)

Commercial spaceflight, as a national strategic emerging industry, is critical for seizing the high ground of the space economy and fostering new quality productive forces through its low-cost and high-quality development. Currently, international enterprises represented by SpaceX have gained a leading advantage through technological breakthroughs and business model innovations, posing severe challenges to China’s aerospace security and development. This study first analyzes the evolutionary trajectory of low-cost development in commercial spaceflight, then delves into the “low-cost vs. high-quality” innovation paradox faced by the traditional aerospace industry and its root causes. Building on this analysis, it examines the experiences of international …

Suggestions On Expanding Application Scenarios Of Commercial Aerospace Market, Mengru Dong, Chaofeng Huang, Ningyi Yang, Yu Yao, Yafeng Qin

Bulletin of Chinese Academy of Sciences (Chinese Version)

Expanding the application scenarios of the commercial aerospace market is an inevitable requirement for promoting the transformation and upgrading of the space industry and achieving the strategic goal of becoming a leading space power. Currently, the development of China’s commercial aerospace is in a critical transition period from technological breakthroughs to market expansion. However, there are still problems such as insufficient participation of private enterprises, low penetration of consumer markets, and insufficient competitiveness in the international market, and a sustainable and benign commercial closed loop has not yet been formed. The study analyzes the current situation of commercial aerospace market …

Reflections On Improving Industrial Investment And Financing Environment To Promote Healthy Development Of Commercial Aerospace, Cuilin Wu, Chao Zhang, Quan Cheng, Hongyu Wu

Bulletin of Chinese Academy of Sciences (Chinese Version)

As a new frontier in global technological competition, the sustainable development of the commercial aerospace industry highly depends on a sound and efficient investment and financing environment. Although China’s commercial aerospace investment and financing system has achieved initial progress, it still faces multiple challenges, including imbalanced capital structure, insufficient risk-sharing mechanisms, and weakened market incentives, which constrain industrial innovation and competitiveness. This study systematically analyzes the current status and main challenges of China’s commercial aerospace investment and financing environment and draws on international experience to propose following optimization strategies. First, improve the structure of capital supply and expand diversified financing …

Book Review: Speed, Safety, And Comfort: The Origins Of Delta Airlines, Dana Johnson

Georgia Library Quarterly

No abstract provided.

Organisational Resilience : A Study Of The Resilience Of Maritime Stakeholders In Ghana, Priscilla Ami Dogbeda Dzokoto

World Maritime University Dissertations

No abstract provided.

Impact Of Low-Altitude Technology On Low-Altitude Industry Development From Perspective Of Low-Altitude Economy, Yong Wang, Yusen Yang, Jimin Zeng, Zhenglong He, Zongxi Cen

Bulletin of Chinese Academy of Sciences (Chinese Version)

Low-altitude economy, as a typical representative of new quality productive forces and a strategic emerging industry, has become an important engine for promoting high-quality economic development and achieving technological self-reliance and self-improvement in China. This study systematically reviews the development trajectory of low-altitude economy, deeply elucidates the connotations and characteristics of low-altitude technology and its impact mechanisms on low-altitude industrial development, providing theoretical support for constructing a modernized low-altitude economic system. It finds that the concept of low-altitude economy has undergone a paradigm shift from industry terminology to economic formation, gradually completing the institutionalization process from strategic planning to legal …

Development Index Assessment And Future Prospects Of China’S Low-Altitude Economy, Jiaoe Wang, Delin Du, Zhuo Chen, Wenwei Tan

Bulletin of Chinese Academy of Sciences (Chinese Version)

With the gradual opening of low-altitude airspace and continuous advancements in low-altitude technology, the low-altitude economy has ushered in significant development opportunities, emerging as a quintessential example of new quality productive forces and garnering widespread attention from both the state and society. However, given China’s vast territory, the development trends and foundational conditions of the low-altitude economy vary considerably across regions, presenting distinct challenges and prospects. To accurately assess the development trends of the low-altitude economy, this study constructs an evaluation framework based on five dimensions, namely, innovation efficacy, industrial strength, scenario vitality, development potential, and support capability, and conducts …

Production Box Cost Estimating Relationships For Dod Avionics, Carla J. Cisneros, Edward D. White, Brandon M. Lucas, Jonathan D. Ritschel, Robert D. Fass, Shawn M. Valentine

Faculty Publications

The authors use historical information obtained from the Cost Assessment Data Enterprise to estimate recurring production unit cost for DoD avionics via cost estimating relationships (CERs). The specific modeled responses include mean unit cost, median unit cost, and the 100th production unit cost (T100) utilizing learning curve theory. For T100, the authors adopt both a multiplicative and an additive error for CER comparison. Recommended CERs consist of the mean unit cost and the T100 utilizing a multiplicative error. Moreover, results reveal that weight has a significant effect on cost as well as a potential underaccounting of real price change or …

A Panel Data Regression Model For Defense Merger And Acquisition Activity, Corey D. Mack, Clay Koschnick, Michael Brown, Jonathan D. Ritschel, Brandon M. Lucas

Faculty Publications

Excerpt: This paper examines the relationship between a prime contractor's financial health and its mergers and acquisitions (M&A) spending in the defense industry. It aims to provide models that give the United States Department of Defense (DoD) indications of future M&A activity, informing decision-makers and contributing to ensuring competitive markets that benefit the consumer.

The results show a significant relationship between efficiency and M&A spending, indicating that companies with lower efficiency tend to spend more on M&As. However, there was no significant relationship between M&A spending and a company's profitability or solvency. These results were consistent with previous research and …

Notes For Contributors, Space And Defense

Space and Defense

No abstract provided.

Waging Peace On The Final Frontier 64th Academy Assembly Proceedings, Space And Defense, Madison Walker

Space and Defense

In October 2022, the 64th annual Academy Assembly at the U.S. Air Force Academy took up the theme of “Waging Peace on the Final Frontier.” The following are proceedings of roundtables held by select undergraduates from around the country on questions of space policy & strategy.

Revitalizing America's Low-Yield Deterrent, Alex Kleitz

Space and Defense

An array of low-yield weapons will play a vital role in integrated deterrence. *The following essay, submitted in June 2022, earned the Junior Division USSTRATCOM General Larry D. Welch Deterrence Writing Award.

Annual Truman Lecture Usafa 64th Academy Assembly, John Shaw

Space and Defense

In October 2022, on the occasion of the 64th annual Academy Assembly, focused on “Waging Peace on the Final Frontier,” the deputy commander of USSPACEOM Lieutenant General John Shaw spoke at the Air Force Academy’s endowed Truman Lecture, which itself was created to inspire cadets toward careers in National Security leadership.

Usafa 64th Academy Assembly Banquet Keynote On Nasa Transformation, Madison Walker, Lori Garver

Space and Defense

In October 2022, at the 64th annual Academy Assembly, focused on “Waging Peace on the Final Frontier,” the former deputy administrator of NASA the Honorable Lori Garver spoke at the Air Force Academy’s 64th Academy Assembly banquet keynote on the implications of NASA transformation for international security. She was introduced in a pre-recorded video by Susan Eisenhower, honorary founder of USAFA’s Eisenhower Center, and interviewed by USAFA Institute for Future Conflict Fellow Madison Walker.

The Unified Command Plan For A New Cold War, David Stilwell

Space and Defense

No abstract provided.

Protecting The Cosmos: Defining Celestial Bodies In The Outer Space Treaty, David Epstein

Space and Defense

Lack of a clear definition of the term “celestial bodies” as used in the 1967 Outer Space Treaty risks exporting legal and political conflict into the cosmos. *This essay is updated from a previously published version and appears here by permission of the Journal of Space Law at Ole Miss.

Editor's Note, Damon Coletta

Space and Defense

No abstract provided.

Table Of Contents, Space And Defense

Space and Defense

No abstract provided.

Front Matter, Space And Defense

Space and Defense

No abstract provided.

Space And Defense Volume 15 No. 1 Spring 2024 (Whole Issue), Space And Defense

Space and Defense

No abstract provided.

Study On Pilot Response Time To Reject Takeoff With One Engine Inoperative (Oei), Lydia Savitri Scrivens

Theses and Dissertations

The FAA regulation 14 CFR § 25.109 defines accelerate-stop testing for transport-category multiengine aircraft. It specifies that testing must include 2-second distance equivalent at engine failure speed VEF to simulate time taken for pilot to reject takeoff. However, pilot response time is widely debated. The purpose of this study is to determine pilot response time in rejecting a takeoff due to the failure of one engine during the takeoff roll.

Seven multiengine rated pilots participated in this study, which was conducted in a Baron 58 in the X-Plane 12 flight simulator. During the recruiting process, test subject candidates provided their …

New Frontier In Race For Deep Space Exploration: Lunar Water Resources, Yong Wei, Honglei Lin, Fei He, Hui Zhang

Bulletin of Chinese Academy of Sciences (Chinese Version)

Deep space exploration has become the commanding heights of science and technology competition. Since the beginning of the 21st century, China has successfully completed the lunar exploration missions of “orbiting, landing, and returning” in just twenty years, and upgraded to a new roadmap of “survey, construction, and utilization”. Meanwhile, lunar exploration worldwide has shown a trend towards normalization and commercialization. The research on lunar water resources has sparked widespread interest and intense competition among countries and space agencies, marking a new focus in human’s deep space exploration. The exploration of lunar water can help reveal crucial processes in the formation …

Winning Battle For Key And Core Technologies In Emerging Fields—Inspiration Based On 863 Program Related Projects, Guangzu Bai, Li Li, Hongfei Meng, Qiang Wang, Xiaoyang Cao, Anrong Liu, Bo Cheng, Mimi Zhan, Jing Li, Leiei Cui, Xiangwan Du

Bulletin of Chinese Academy of Sciences (Chinese Version)

Emerging technology fields have become the main battleground for strategic competition among major powers today, with key and core technologies serving as crucial approach in shaping a nation’s international competitive advantage. This study, from the perspective of national strategy, profoundly understands the significant importance of winning the key and core technology battle in emerging fields. Based on this understanding, it starts with a comparison between the implementation background of the 863 Program and the current reality. It systematically summarizes valuable experiences from projects aimed at advancing key and core technologies in emerging fields, and puts forward reflections and suggestions for …

Interpersonal Skills In A Sociotechnical System: A Training Gap In Flight Decks, Kimberly Perkins, Sourojit Ghosh, Crystal Hall

Journal of Aviation/Aerospace Education & Research

This research analyzed the perceptions of interpersonal skills on established aviation safety models, Crew Resource Management (CRM), and Threat and Error Management (TEM) using feedback from industry pilots. The flight deck is a sociotechnical system where much research has focused on the technical aspect, whereas we spotlight its socio aspect. The aviation industry must invest in training pilots on interpersonal skills to enhance safety through increased efficacy of safety models integrated throughout existing training programs. A 34-question survey was disseminated across both commercial and business aviation pilots (N=822). We explored three research questions regarding pilots’ perceived training on interpersonal skills …

Steminism: Analyzing Factors That Improve Retention Of Women In Stem, Kira Carter, Jane Kelley, Jason Vasser-Elong, Rc Patterson

Dissertations

Our co-authored research ‘Steminism: Analyzing Factors That Improve Retention for Women as STEM Majors’ analyzed factors that contributed to the retention of women in science, technology, engineering, and mathematics (STEM) programs at Missouri University of Science & Technology (Missouri S&T). Women make up half of the US population, and while careers in (STEM) are an integral part of the US economy, women are underrepresented in these career fields. The purpose of our dissertation is to address the underrepresentation of women in STEM majors. Our methodology included homogeneous sampling to collect qualitative data. More specifically, we consulted with academic advisors and …

Data And Intelligent Driven Space Science Experimental Research: New Exploration Under Ai4s Paradigm, Shengyang Li, Kang Liu, Yunfei Liu, Chufan Lai

Bulletin of Chinese Academy of Sciences (Chinese Version)

As artificial intelligence (AI) technology continues to advance, it is revolutionizing various scientific fields, giving rise to a new research paradigm known as AI for Science (AI4S). This study highlights the unique multidisciplinary advantages of AI in space science experiments conducted under microgravity conditions. It provides a comprehensive analysis of AI-driven approaches to multimodal space science experiment data pattern mining, domain knowledge extraction, interdisciplinary knowledge integration, and cognitive intelligence. The study reveals AI’s substantial potential to enhance intelligent scientific research, cognition, and discovery within the realm of space science experiments. The findings suggest that data-driven space science research, as a …

Repurposing The United Nations Trusteeship Council To Govern The Establishment Of Outer Space Settlements, Andrew Wulf

Northwestern Journal of International Law & Business

Current existing international law and treaties on outer space do not address or regulate private actors’ property claims or human settlements in outer space. American companies such as SpaceX and Blue Origin, as well as countries like the United States, Russia, and China, are seeking to create colonies on the Moon and Mars. However, there is no international legal authority to allow or regulate this. In order to legitimize and control this impending outgrowth of human settlements, this paper proposes that the U.N. Trusteeship Council be repurposed to govern non-state actors’ claims of outer space property.

First, this paper explains …

Different Spectrum Of Space Radiation Induced Cognitive Impairments In Radiation-Naïve And Adapted Rats, Richard A. Britten, Arriyam S. Fesshaye, Alyssa Tidmore, Ella N. Tamgue, Paola A. Alvarado-Arriaga

Center for Integrative Neuroscience and Inflammatory Diseases (CINID) Faculty Publications

NASA's decision to resume manned deep space mission, first to the Moon and then Mars, necessitated a detailed assessment of the potential health effects that astronauts may experience on long-duration missions. Multiple studies suggest that there may be significant space radiation (SR)-induced impairment of neurocognitive processes, including advanced executive functions. However, given the multitude of SR-induced changes in the CNS, it is possible that completely different SR-induced sequelae will be induced in previously exposed individuals. Thus, current risk estimates are likely to be pertinent only for the early stages of a deep space mission, and even then only for astronauts …