[Objective/Significance] International science and technology organizations are an important platform for international cooperation. Analyzing the characteristics of Chinese scientists in international science and technology organizations can provide guidance and theoretical support for the career development and training program of talents in the field of earth science in China. [Method/Process] Based on the research samples of academicians of the Chinese Academy of Sciences and the Chinese Academy of Engineering in the field of earth science, as well as winners of outstanding youth funds and special professors of the Yangtze River, this study analyzes the group characteristics of Chinese scientists of international science and technology organizations from the perspectives of number of posts, age structure, relying institutions and tenure structure. [Results/Conclusions] The results show that: (1) In the field of earth science, the number of participants in international scientific and technological organizations is relatively small; (2) The age of talents in international scientific and technological organizations is concentrated between 41 and 50 years old; and (3) The talents in the field of earth science are mainly concentrated in colleges and universities with advantages in the field of earth science and scientific research institutes of the Chinese Academy of Sciences. This study reveals that there are some problems in China's international service, such as weak leadership and insufficient talent training, which makes up for the gap in the field of international talent research.

[Objective/Significance] Graphyne, as a new type of carbon material, has important scientific research and application potential. [Method/Process] In order to gain a deeper understanding of the international research trends and hotspots in the field of graphyne, this article is based on relevant literature in the graphyne field collected by SCIE. Using bibliometric methods and tools such as Derwent Data Analyzer, VOSviewer, and Excel, the article analyzes the overall development trend, major publishing countries/regions, major research institutions, research topics, and research hotspots from various dimensions. [Results/Conclusions] Research shows that the global publication of graphyne related articles is showing a continuous upward trend. China plays a major role in the research of graphyne, with over half of the papers being published, and there is still room for improvement in the quality of the papers. The main research institutions are mostly higher education institutions and research institutions, which play an important role in promoting research on graphyne. The research on graphyne mainly focuses on related fields such as 2D materials, electrochemistry, and physical chemistry.

[Objective/Significance] As a green and low-carbon thermal energy supply solution, heat pump technology represented an essential pathway for replacing fossil fuels and achieving carbon neutrality in the heating sector. This study aimed to provide decision-making support for future market deployment and policy formulation of heat pumps. [Method/Process] The paper reviewed and organized the strategic plans of heat pump technology in major countries and regions, and examined the international development trends of heat pump technology over the past 50 years. [Results/Conclusions] (1) Major countries and regions such as China, the United States, Europe, Japan, and South Korea have successively formulated development plans, roadmaps, financial incentives, and related support policies to promote the market application of heat pumps. (2) The number of global heat pump technology patents has shown a rapid growth trend. China has become the main growth force of global heat pump technology with policy promotion and financial support. Under the background of global energy transition and increasing demand for heat pumps, heat pump technology is expected to experience a new wave of growth in the future. (3) The research focus of heat pump technology includes air source heat pump units and components, absorption heat pumps, and water source heat pumps. Finally, the paper provides suggestions for the development of heat pump technology in China.

[Objective/Significance] Based on the theory of Strategic Niche Management, the evolution mechanism of quantum measurement industry is analyzed, and the strategy and competitive situation intelligence analysis is carried out, which is of enlighting significance for the development path planning and intelligence support of frontier industries. [Method/Process] Taking quantum measurement as the analysis object and based on the Strategic Niche Management theory, this paper constructs an analysis framework of strategy and competition situation for quantum measurement industry, and makes analysis with the help of strategic dynamic tracking, literature metrology, patent analysis, talent flow analysis, industrial chain method. [Results/Conclusions] The analysis shows that in terms of strategy, the national strategy related to quantum measurement in the United States is being enhanced, and investment for quantum sensing research and development is set to enter an intensive period. China has an edge over the United States in basic research and patent output. However, when it comes to industrial development, the United States holds a significant advantage.. China needs to enhance international cooperation, be vigilant against brain drain, and accelerate the transformation of research outcomes.

[Objective/Significance] This study analyzes the evolution of the U.S. National Security Strategy reports through an in-depth analysis of the reports and reveals the new changes and trends in the U.S. national security strategy. [Method/Process] This study adopts a combination of quantitative and qualitative analysis methods to analyze the co-occurring words, word frequency changes of keywords and social network analysis of the U.S. National Security Strategy reports (2002-2022), in order to explore the similarities and differences of the U.S. National Security Strategy reports in different periods. [Results/Conclusions] The U.S. national security strategy, ranging from the "counter-terrorism strategy" to the "Asia-Pacific rebalancing strategy", then to the Trump administration's "America First" and "Indo-Pacific strategy", as well as the current Biden administration's "shaping the future of the international order", can be regarded as always revolving around the core interests of the United States. The evolution of the U.S. national security strategy has always been centered on the core interests of the United States, which provides valuable insights for the adjustment of our national security in the new era.

[Objective/Significance] This study aims to analyze the international development trends of mass spectrometers in the nuclear field and offer reference suggestions for the high-quality development of analytical instruments in China. [Method/Process] The research methodology entailed literature and patent searches using the Web of Science Core Collection and the Derwent Innovations Index database. CiteSpace software was employed to analyze 5,531 publications and 350 patents on nuclear mass spectrometers from the past two decades, examining research trends, topics, major countries and institutions, and patent technology hotspots. [Results/Conclusions] The study reveals a consistent annual publication volume for nuclear mass spectrometer research, with a gradual increase in citation frequency. Patent applications show fluctuating patterns with a recent upward trend. The focus of research is on the development and application of instruments, mainly involving accelerator mass spectrometers, secondary ion mass spectrometers, and plasma mass spectrometers. The United States, Japan, Germany, and France are the key research countries, with prominent institutions such as the U.S. Department of Energy and the Swiss Federal Institute of Technology. Patent technology hotspots are in the development of mass spectrometers and their application in the biomedical field. Expert opinions and data analysis suggest a widespread use of mass spectrometer technology in biomedical applications with promising market prospects. The priority for China is the localization of core components for mass spectrometers.

[Objective/Significance] As globalization and informatization continue to deepen, the characteristics of organized crime being transnational, widespread, and intricate have grown increasingly prominent. Therefore, strengthening research on organized crime has become an urgent matter. By exploring the current state, hotspots, and trends in international organized crime research, this study aims to promote the theoretical and practical development of organized crime research in China. [Method/Process] Using bibliometric methods and CiteSpace visual analysis software, we analyzed 2,263 pieces of literature related to organized crime research published from 2011 to 2023, retrieved from the Web of Science Core Collection database. The analysis included authorship analysis, country of issuance analysis, and keyword co-occurrence analysis. [Results/Conclusions] Research on organized crime has shown a high rate of development in recent years; wildlife trafficking, drug smuggling and criminal networks are the main research hot spots; the rise of multidisciplinary research, the introduction of computer technology and international cooperation are important trends for future development.