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Biomimetic And Bio-Derived Composite Phase Change Materials For Thermal Energy Storage Applications: A Thorough Analysis And Future Research Directions, Md Shahriar Mohtasim, Barun K. Das

Research outputs 2022 to 2026

Phase change heat storage has gained a lot of interest lately due to its high energy storage density. However, during the phase shift process, Phase Change Materials (PCMs) experience issues such as low thermal conductivity, stability, leaking, and low energy-storing capacity. Materials that mimic or derive from nature can effectively offset the shortcomings attributed. This work presents a methodical overview of the synthesis, thermo-physical properties, comparison and Thermal Energy Storage (TES) applications of bio-derived and biomimetic composite PCMs (BD/BM-CPCMs). Several studies have observed increase in thermal conductivity up to 950–1250 % for BD/BM-CPCMs, as well as great thermal stability with …

A Jwst Survey Of The Supernova Remnant Cassiopeia A, Dan Milisavljevic, Tea Temim, Ilse De Looze, Danielle Dickinson, J. Martin Laming, Robert Fesen, John C. Raymond, Richard G. Arendt, Jacco Vink, Bettina Posselt, George G. Pavlov, Ori D. Fox, Ethan Pinarski, Bhagya Subrayan, Judy Schmidt, William P. Blair, Armin Rest, Daniel Patnaude, Bon Chul Koo, Jeonghee Rho, Salvatore Orlando, Hans Thomas Janka, Moira Andrews, Michael J. Barlow, Adam Burrows, Roger Chevalier, Geoffrey Clayton, Claes Fransson, Christopher Fryer, Haley L. Gomez, Florian Kirchschlager

Michigan Tech Publications

We present initial results from a James Webb Space Telescope (JWST) survey of the youngest Galactic core-collapse supernova remnant, Cassiopeia A (Cas A), made up of NIRCam and MIRI imaging mosaics that map emission from the main shell, interior, and surrounding circumstellar/interstellar material (CSM/ISM). We also present four exploratory positions of MIRI Medium Resolution Spectrograph integral field unit spectroscopy that sample ejecta, CSM, and associated dust from representative shocked and unshocked regions. Surprising discoveries include (1) a weblike network of unshocked ejecta filaments resolved to ∼0.01 pc scales exhibiting an overall morphology consistent with turbulent mixing of cool, low-entropy matter …

The Impact Of Outpatient Supportive Oncology On Cancer Care Cost And Utilization, Brooke Worster, Yifan Zhu, Gregory Garber, Sawyer Kieffer, Aaron Smith-Mclallen

Department of Medical Oncology Faculty Papers

BACKGROUND: Supportive oncology (SO) care reduces symptom severity, admissions, and costs in patients with advanced cancer. This study examines the impact of SO care on utilization and costs.

METHODS: Retrospective analysis of utilization and costs comparing patients enrolled in SO versus three comparison cohorts who did not receive SO. Using claims, the authors estimated differences in health care utilization and cost between the treatment group and comparison cohorts. The treatment group consisting of patients treated for cancer at an National Cancer Institute-designated cancer center who received SO between January 2018 and December 2019 were compared to an asynchronous cohort that …

Audio Dramas As Self-Expression For Marginalized Identities, Athena Towne

Honors Projects

Fiction podcasts, also knows as Audio Dramas, often afford a level of creative freedom to potential creators that is not seen in other popular media. This is seen explicitly through the marginalized representation that popular works in the medium allow. This work seeks to explore why the medium allows for such stories to flourish, as well as how these stories are received. Then, to test this theory, this paper documents the process of creating an audio drama, from conception to completion.

Implementation Evaluation And Outlook Of Major Function Oriented Zone, Dong Chen, Baoyin Liu, Jie Fan, Daojing Zhou, Rui Guo, Zhao Wang, Jianxiong Wu

Bulletin of Chinese Academy of Sciences (Chinese Version)

Major Function Oriented Zone (MFOZ), an attempt and exploration aimed at ecological civilization during China’s industrial civilization period which is divided into two stages, the stage of MFOZ planning and the stage of the national strategy and basic institution before and after the 18th Communist Party of China (CPC) National Congress, and the main characteristics of both stages are analyzed. Since the 18th CPC National Congress, the strategic thinking of the MFOZ has been deeply rooted in the hearts of the people, the strategic pattern of the MFOZ has been basically formed, the development of the categorized MFOZ has achieved …

Strategic Priorities Of China's Urbanized Areas During 15th Five-Year Plan Period, Wei Qi, Jie Fan, Jiaming Li, Yu Li

Bulletin of Chinese Academy of Sciences (Chinese Version)

Urbanized areas are areas whose main function is to provide industrial and service products. During the 15th Five-Year Plan period, the urbanization rate of China’s population will exceed 70 percent, thus entering a long-time stage of high urbanization levels. The strategic positioning of urbanized areas will be defined as county-level administrative districts with a high concentration of scientific and technological innovation resources, new quality productivity, and new-type industrialization. In terms of strategic layout, the scope of urbanized areas will be optimized to promote the concentration of population and economy in urban agglomerations, metropolitan areas, and central cities, and to strengthen …

Strategic Pattern And Optimization Of China's Eco-Regions During Fifteenth Five-Year Plan Period, Kan Zhou, Jie Fan, Daojing Zhou, Zhedong Qian, Hu Yu, Hanchu Liu, Jian Zhang

Bulletin of Chinese Academy of Sciences (Chinese Version)

Since the implementation of the major function oriented zoning, the ecological space of key ecological functional areas has continuously expanded, with a significant increase in vegetation coverage. Concurrently, there has been a dual change in population dynamics, characterized by a decrease in total population and an increase in the urban population. Furthermore, significant achievements have been made in economic and social development, and there has been a steady improvement in the functions of ecological security barriers, contributing to an alleviation of tension in human-environment relationships. During the 15th Five-Year Plan period, it is imperative to adhere to the functional orientation …

Establishing Networked Territorial Spatial Pattern To Serve New Development Pattern, Jiaming Li, Jiaoe Wang

Bulletin of Chinese Academy of Sciences (Chinese Version)

A networked territorial spatial pattern, centered around major strategic corridors, plays a crucial role in supporting the construction of the new dual-circulation development pattern. The “Two Horizontals and Three Verticals” major strategic corridors that have been formed can effectively promote the concentration of socio-economic factors in major urban agglomerations. However, there exists a mismatch between the north-south vertical strategic corridors and the east-west socio-economic linkages and transportation corridors. Besides, the existing strategic corridors lack sufficient horizontal support for the Beijing-Tianjin-Hebei urban agglomeration, and the land and sea corridors exhibit weak horizontal driving effect and insufficient connection with external corridors. “Three …

Evolution, Stage Characteristics And Governance Model Transformation Of China's Low-Carbon Policy, Yigang Wei, Jiawei Shi, Guannan Xu

Bulletin of Chinese Academy of Sciences (Chinese Version)

A systematic review of China’s low-carbon policy and paradigm transformation is imperative for establishing a well-designed policy system to achieve the “dual carbon” goals. Based on the theory of policy change, this study constructs an analytical framework of “policy objectives—policy themes—policy fluctuations”. This study uses text mining techniques and policy measurement methods to analyze 1 743 low-carbon policies implemented in China from 2000 to 2021. The study summarizes the stage characteristics and evolutionary path of low-carbon policy development in China, evaluates the contribution of each policy theme at different stages, and portrays the paradigm shift in low-carbon governance. The findings …

Opportunities, Current Situation, And Improvement Path Of International Communication Of Chinese Think Tanks In Social Media Era, Zhiqiang Zhang, Xiujuan Chen, Ye Han

Bulletin of Chinese Academy of Sciences (Chinese Version)

As a strategic and policy research and decision-making consulting institution, the international influence of think tanks is an important manifestation of a country’s soft power and an important component of its comprehensive national strength in the era of globalization. Enhancing international communication power of think tanks is a key measure for shaping their international influence and an important strategy for a country’s external communication. In today’s era, international social media, as an important channel for think tanks to spread abroad, strengthening the communication power of Chinese think tanks in international social media is the main direction to enhance their international …

Policy Overview (March, 2024)

Bulletin of Chinese Academy of Sciences (Chinese Version)

No abstract provided.

2024 Issue 4 Content

Bulletin of Chinese Academy of Sciences (Chinese Version)

No abstract provided.

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Bulletin of Chinese Academy of Sciences (Chinese Version)

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Bulletin of Chinese Academy of Sciences (Chinese Version)

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Rao Zihe: Cultivate Strategic Talent, Carry Forward The Scientific Spirit Of "Seeking Truth", Editorial Board Of Bulletin Of Chinese Academy Of Sciences

Bulletin of Chinese Academy of Sciences (Chinese Version)

No abstract provided.

Hu Haiyan: Strengthen Governance Of Science And Technology Ethics And Select And Cultivate Outstanding Talents, Editorial Board Of Bulletin Of Chinese Academy Of Sciences

Bulletin of Chinese Academy of Sciences (Chinese Version)

No abstract provided.

Bao Xinhe: Strengthen Disciplinary Strategies, Achieve Academic Leadership, To Build High-Level Self-Reliance In Science And Technology, Editorial Board Of Bulletin Of Chinese Academy Of Sciences

Bulletin of Chinese Academy of Sciences (Chinese Version)

No abstract provided.

Yang Yuliang: Promoting Science Popularization And Cultivating High-Scientific-Literacy Talents, Editorial Board Of Bulletin Of Chinese Academy Of Sciences

Bulletin of Chinese Academy of Sciences (Chinese Version)

No abstract provided.

Social Order In Age Of Artificial Intelligence, Yongnian Zheng

Bulletin of Chinese Academy of Sciences (Chinese Version)

While the rapid development of artificial intelligence is empowering society, it is also posing serious threats to the continuation of the traditional social order. The "de-intellectualization" function of AI has given rise to the phenomenon of "artificial ignorance", referring to the self-inflicted intellectual harm caused by the uncontrolled and excessive misuse of AI-related tools, thus causing a profound impact on the social order. The technical structural characteristics and governance structural characteristics of AI contributed to the emergence of the phenomenon of "artificial ignorance". The technical structural characteristics of AI can be summarized as highly concentrated capabilities, highly centralized control, highly …

Impact Analysis Of Artificial Intelligence Technology On Employment And Income In China, Yan Lu, Lincui Gui

Bulletin of Chinese Academy of Sciences (Chinese Version)

With the continuous development of artificial intelligence technology, employment and income in China will undergo some new changes. It is necessary to explore the impact of artificial intelligence technology on employment and income distribution. The study finds that in terms of employment, the impact of artificial intelligence includes redefining the number and nature of jobs, affecting work patterns and work skills, and possibly triggering structural imbalances between supply and demand in the labor market, leading to employment inequality, increasing employment risks. In term of income distribution, artificial intelligence technology has a heterogeneous impact on the initial distribution of different fields, …

Open Governance And Innovation Directions Regulation: Research On Institutional Mechanisms For Promoting Development Of Artificial General Intelligence, Yuhao Jiang, Xinyi Zhang, Mingjie Dai

Bulletin of Chinese Academy of Sciences (Chinese Version)

In the field of artificial intelligence development, there is still a certain gap between China and the United States. The uncertain future of artificial general intelligence (AGI) decides that China should not only implement the "catch-up" strategy. Artificial intelligence is not a ‘linear innovation' development path, but there is overlap between basic research, applied research, and industrial transformation. This feature of innovation shows that diversified exploration can be realized based on tracking of international frontiers, breakthrough of basic research, and satisfaction of diverse application needs. China needs to adhere to the promotion of open governance, and regulate innovation directions of …

Study On Constraints And Policy Responses For Production And Circulation Of Ai Training Data In China, Tao Lin

Bulletin of Chinese Academy of Sciences (Chinese Version)

The quantity and quality of training data are critical to the performance of artificial intelligence (AI) models. However, in China, the production of training data is hindered by issues such as insufficient quantity, low quality, and fragmented distribution, compounded by limitations stemming from commercial ecosystems, regulatory frameworks, and restricted development and utilization of public data. To address these challenges, this study proposes several policy recommendations, including incentivizing research institutions to generate open-source datasets, fostering AI application scenarios, adopting a "loose-in, focus-out" regulatory approach, introducing intellectual property exemption provisions, refining personal information protection guidelines, and expediting the establishment of a unified …

New System For Mobilizing Resources Nationwide To Promote Leapfrog Development Of Innovation Ecosystem Of Artificial Intelligence Enterprises: Mechanisms, Problems And Strategies, Yang Mei, Hao Niu, Han Jiang

Bulletin of Chinese Academy of Sciences (Chinese Version)

Facing the unpredictable new features of top-down AI technological innovation and the new requirements on functions, this study proposes to re-examine the technological innovation of AI at the enterprise level from the perspective of the "a new system for mobilizing the resources nationwide" and with the enterprise innovation ecosystem as the carrier. On the basis of explaining the elements and operation logic of the new system at the enterprise level, compared to the "implicit national system" of the US, this study preliminarily compares the new system of AI in China and that in the US. It is proposed that the …

How China Leads Global Governance Of Artificial Intelligence: A Sustainable Development Approach Beyond Technological Competition, Xuanming Pan, Zhenzhen Chen, Shaoshan Liu

Bulletin of Chinese Academy of Sciences (Chinese Version)

In the context of great power competition and escalating geopolitical conflicts, the academic community generally holds a pessimistic view of AI international cooperation, believing that the space is shrinking. This perception mainly stems from conflicts in the cross-border supervision of AI data and algorithms among technologically advanced countries, while overlooking the strong willingness and potential for cooperation in energy conservation and emission reduction through AI technologies shown by Global South countries. Looking into the future of global governance, China, starting from leading the transformation of AI technologies, shall take lead in supporting these countries to transform the sustainable development consensus …

U.S.-Europe Artificial Intelligence Regulatory Cooperation, Divergence, And China's "Window Of Opportunity" For Strategic Breakthrough, Yang Mei, Jing Zeng, Yong Zhan

Bulletin of Chinese Academy of Sciences (Chinese Version)

The United States, Europe, and China have adopted completely different technological development paths in the era of artificial intelligence innovation, forming a model division of "development-driven governance", "stringent governance framework", and "coordinated governance model" The United States and Europe have respectively set strategic goals as "maintaining technological hegemony" and "competing for the soft power of international rules", forming an interactive model in which institutional supervision and industry independence parallel, and cooperation needs and policy divergence coexist. China has contributed a unique technological governance logic of "people-oriented" and "moral-oriented". Faced with the current technological "window of opportunity", China should adopt two …

Scientific Development And Utilization Of Underground Space Resources To Stimulate High-Quality Urban Economic Development, Rong Yi

Bulletin of Chinese Academy of Sciences (Chinese Version)

Accelerating the development and utilization of urban underground space holds significant strategic value. It can effectively alleviate land resource constraints, enhance national defense and urban resilience, support urban renewal, and drive economic growth. Nevertheless, challenges remain in China's current approach to underground space development, including delayed planning, insufficient geological surveys, lack of regulatory frameworks, and fragmented industry management. During the transition from the 14th to the 15th Five-Year Plan, there is an urgent need to establish six integrated systems to ensure the scientific and efficient use of underground space: strategic planning, geological surveying, legal and regulatory standards, investment support, scientific …

10-Year Progress Assessment Of Made In China Strategy—Perspective Based On U.S. Publications, Wen Wang, Yujing Shen

Bulletin of Chinese Academy of Sciences (Chinese Version)

Manufacturing is the foundation and pillar of the national economy, and a key support for achieving high-quality development. Advancing the transformation, upgrading, and innovation-driven development of the manufacturing industry is of utmost importance. At present, China has already completed the first phase of its national strategy to become a manufacturing powerhouse ahead of schedule and is steadily advancing toward that long-term goal. However, the road ahead is likely to be shaped by a complex and volatile international environment and intense strategic competition from the United States. This study evaluates China's strategy to become a manufacturing powerhouse from the perspective of …

Significance And Reflection Of Lunar Exploration, Jiaqi Liu

Bulletin of Chinese Academy of Sciences (Chinese Version)

Although China's lunar exploration project started later than the Soviet Union and the United States, it is the first country to land probes and retrieve samples on both the right side and the reverse side of the Moon. There have been many major breakthroughs in space technology, and many important achievements in scientific research as well. It has extended the life of the Moon for about 1 billion years.

Wild Seahorse Conservation And Industrial Growth Strategies: A Dual-Perspective Study, Shicheng Wang, Bo Li, Lanliang Yu

Bulletin of Chinese Academy of Sciences (Chinese Version)

The United Nations Decade of Ocean Science for Sustainable Development (2021–2030) prioritizes healthy oceans and sustainable development. Protecting marine biodiversity, promoting sustainable fisheries, and achieving global sustainability goals are critical concerns for the international community. This study addresses critical challenges in seahorse conservation and industrial development, including wild resource depletion, limitations in aquaculture technology, low-value industrial chains, and inadequate regulatory coordination. Through systematic analysis of current conservation status and industrial trends, establishing demonstration bases is proposed for seahorse resource protection and high-value utilization ("Hippocampus Hub"), guided by natural habitat integrity, scientific research capacity, industrial chain integration, and policy support. By …

Zhu Guangya: Cultivator And Practitioner Of Spirit Of Scientists—Commemorating 100th Anniversary Of Birth Of Zhu Guangya, "General Of Distinguished Scientists", Jianqiang Li, Leilei Cui, Xiangwan Du

Bulletin of Chinese Academy of Sciences (Chinese Version)

Known as the "pillar scientist" and "general of distinguished scientists" in the Chinese engineering science community, ZHU Guangya was an outstanding strategic scientist and engineering master who had made outstanding contributions to China's science and technology. This study aims to deeply explore and reveal the core connotation, profound influence, and important contemporary value of ZHU Guangya's scientific spirit from six aspects: patriotism, innovation, truth seeking, dedication, collaboration, and talent cultivating, by reviewing his life journey and scientific contributions. At the same time, the study deeply analyzes how did ZHU Guangya integrate the above spirit into major national scientific research projects …