Scientific and technological innovation serve as the wellspring of human social progress and the cornerstone for the evolution of China's renewable energy technology and equipment from weakness to a strong position of global leadership. Battery energy storage functions as a "super stabilizer" for the secure renewable energy operation. Testing instruments, consequently, are the key national assets across the entire lifecycle—including research and development, production, manufacturing, and deployment—of battery energy storage and the wider renewable energy systems. This article presents a case study on battery testing technology and instruments to systematically review the evolutionary path of China's battery testing instruments from import dependency to independent technological innovation. Specifically, create an integrated testing methodology of "fast and accurate excitation-intelligent modeling and estimation" for high-voltage batteries, which fills the gap in theoretical methods in the field of battery testing; Promote the localization of high-voltage and high-power testing instruments as well as create many international top technical metrices, such as charge-discharge conversion time < 3 ms, Energy conversion efficiency 95%, which seizes the commanding heights of science and technology in the field of international battery testing. Finally, this article analyzes the coordinated development relationship between the progress of battery testing technology and China's renewable energy industry. It summarizes practical experiences and lessons learned through the independent development of testing instruments: Chinese researchers defy international technological blockades, courageously undertake formidable tasks with resolve, and adhere firmly to confidence in academia and development path. Through close alignment with key national strategies and market demand, they overcome tough challenges, integrate industry, academia, and research, accelerate the deployment of innovative technologies to the industrial front line, and achieve self-reliance and strength of battery energy storage testing instruments in science and technology.

Since the reform and opening-up, China's economic development has shifted from pursuing quantity and speed to quality and efficiency, while facing the challenges of ecological environment constraints and sustainable development. The 18th National Congress of the Communist Party of China proposed the concept of "Beautiful China" construction, and clarified the phased goals through the "13th Five-Year Plan" and the reports of the 19th and 20th National Congresses. The construction of Beautiful China is centered on ecological protection and green development, and is committed to achieving harmonious coexistence between man and nature and building an ecological civilization country. Ecology, as a science that studies the relationship between organisms and the environment, is closely related to the construction of "Beautiful China". On the one hand, ecology provides theoretical support for the formulation and implementation of "Beautiful China" policies; on the other hand, the construction of "Beautiful China" provides opportunities for ecological theoretical innovation and practice, and promotes the integration of ecology and modern science and technology. Starting from the connotation of ecology in the construction of "Beautiful China", this article identifies the key ecological fields involved, the experience and results of implementation, and analyzes the needs of "Beautiful China" construction for ecology from the aspects of technical methods, theoretical support, evaluation decision-making and legal mechanisms. Finally, it points out the opportunities and inspirations for the future development of ecology in terms of concept expansion, theoretical breakthroughs, technological innovation, response to climate change and improvement of legal mechanisms. It provides valuable experience for global ecological governance, green economic transformation and improving human well-being.

Safe drinking water is of vital importance to people's well-being, and is also a critical constituent part of Beautiful China Initiative. This paper describes the development status of drinking water safety and security from the aspects of water source, water plant, pipeline network and risk control, summarises the important achievements in the field of drinking water safety in more than 20 years in the identification and evaluation of water quality risk, water source restoration, water purification, pipeline network transmission and distribution and rural water supply, and achieves significant breakthroughs in the localisation of monitoring equipment and the enhancement of monitoring capacity, the stabilisation of town faucet water to meet the standard, and the improvement of rural water supply quality, and creates a technical system for drinking water safety and security. It has created a technical system for drinking water safety and security, analysed the technical challenges and problems faced by the field of drinking water safety and security under the goal of building a beautiful China in the new era, such as fluctuations in water quality of the water source, the risk of new pollutants, and the degree of wisdom of the plant network to be upgraded, and put forward a breakthrough in the future of the water purification of new principles and methods, the research and development of water purification of new processes and new technologies, and construction of a high-quality drinking water technical system and the future of the development of the water plant.

With the pollution control of China entering a critical stage and the proposal of "dual carbon" targets, traditional pollution control technologies face numerous challenges in terms of synergistic reduction of carbon and pollutant emissions and coordinated control of pollutions in multiple media. There is an urgent need to explore a new paradigm for pollution control. To tackle the complex issue of urban environmental pollution, this work expands pollution control efforts from emission sources to environmental processes, offering a promising new approach.The self-purification function of urban environment can be enhanced through artificial technologies, and the pollutants can be purified in environmental processes under natural conditions by light, heat, wind, oxygen, and water. Furtherly, through coupling the artificial enhanced environmental self-purification technologies for gas-water-soil multi-medium, a "self-purifying city" can be constructed. The artificial enhanced self-purification technologies and "self-purifying city" would provide a new growth point for environmental protection, consolidate the current achievements of pollution source emission control, and ensure the continuous improvement of environmental quality. This paper introduces the theories and technologies of artificial enhanced self-purification and "self-purifying city" and provides an outlook on future research in this area.

Soil health refers to the ability of soil to sustainably support plant productivity, maintain environmental quality, and promote the health of animals, plants and humans. Soil health is directly related to the sustainable use of soil resources and the sustainable development of social economy. Based on the introduction of the concept and connotation of soil health and the current research status, this paper discusses the principles and technical systems of ecological regulation for soil health, proposes to manage soil health from two aspects: improving the soil environment and regulating the soil biological system, and especially emphasizes the important role of rhizosphere microbiome in soil health management; taking conservative agriculture as an example, we introduce the basic principles and practices of maintaining soil health through ecological engineering measures. Finally, we look forward to the future research directions of soil health and proposes management suggestions such as building a Chinese soil health control system. The paper aims to update the public's understanding of soil health, promote soil health research, and provide scientific and technological support for the sustainable use of soil resources in China.

The exploration and utilization of mineral resources are essential for sustaining the economic development of modern society and human activities. However, over the past century, the extraction and processing of various mineral resources have resulted in the generation of large amounts of mine tailings, posing significant threats to the local ecosystem and the sustainable development of human society. Ecological rehabilitation in mine tailing areas has become crucial for achieving sustainable mining practices. Building on an analysis of the shortcomings of traditional approaches to ecological restoration of tailings, we propose a promising strategy rooted in pedogenesis principles for the sustainable rehabilitation of mine tailings. This strategy, termed "ecological engineering of soil formation in mine tailings", treats tailings as the parent material for soil formation and employs systematic ecological engineering methodologies to accelerate pedogenesis. The aim of ecological engineering is to gradually transform the tailings into a stable soil-like substrates with a porous physical structure and chemical buffering properties, capable of supporting specific ecological functions, thus facilitating ecosystem development in the tailing areas. Throughout this process, it's essential to systematically consider the characteristics of the tailings, local microbial and plant species, and climatic conditions, in order to design technical routes tailored to local conditions and construct a comprehensive technical package. Finally, according to current research progress, we identify key research directions focusing on both fundamental understanding and technical applications of ecological engineering of soil formation in tailings.

Municipal sewage sludge (SS) and food waste are two typical organic solid wastes generated by urban metabolism, and their low-carbon resource recycling is an important part of the construction of "Zero-Waste Cities". In recent years, the pyrolysis and carbonization of sludge have gradually gained attention and application in China. Anaerobic digestion of food waste for energy recovery as biogas has become the mainstream technology, but the utilization of the large amount of biogas residue produced along with it has become a hot topic. Currently, there are limited demonstration projects on the synergetic valorization of sludge and food waste anaerobic residue across the country. This study conducted lab- and pilot-scale research on the co-pyrolysis of SS and food waste digestate (DS) from the perspective of reducing investment and operating costs through their synergetic conversion. A demonstration project on the collaborative pyrolysis of dewatered SS and DS with a daily treatment capacity of 20 tons on a dry basis was established, and a long-term stable operation analysis was carried out. The lab results showed that the yield of biochar increased from 62.71 wt.% to 73.14 wt.% with the SS to DS ratio from 1∶0 to 1∶3 under the pyrolysis temperature of 600 ℃. Correspondingly, the yields of pyrolysis oil and gas decreased. The potassium and phosphorus are mainly enriched in the biochar after co-pyrolysis, and the heavy metals were well immobilized in biochar with the proportions of the residual and oxidized forms over 80%. Compared with the pure SS biochar, the O—H stretching vibration peak in the co-pyrolysis biochar was significantly weakened, but the C=O absorption peak was enhanced. The pilot-scale demonstration results indicated that the yields of biochar from SS, SD, and SS+SD were in the range of 25~30 wt.% with the pyrolysis temperature of 400~500 ℃. The higher heating value of biochar was between 4500 kJ·kg^-1 and 5500 kJ·kg^-1 with the volatile matter and fixed carbon of 13~15 wt.% and < 10%. The biochar applied in soils can realize the carbon sequestration due to its stable carbon which can be kept in the soil for a long time without being decomposed to release CO₂. Compared with sludge incineration, pyrolyzing 1 ton of sludge is equivalent to reducing the direct CO₂ emissions by 0.024 tons. Moreover, the forms of heavy metals in the biochar were preferred to be stable solidification, which was consistent with their trends from the lab.

In recent years, advancements in energy density, charging speed, and lifespan have been achieved in traction batteries through material innovation, structural optimization, and management system upgrades. However, the safety design of traction batteries adopting new technologies remains a critical challenge, particularly in addressing risks associated with fast charging, bottom impacts, and thermal events. This paper systematically reviews key innovation directions in traction battery technology, including structural design and chemical system upgrades, while conducting analysis on corresponding safety enhancement strategies derived from these technological breakthroughs. From a testing and evaluation perspective, it explores frontier safety issues such as fast charging, bottom impact, and thermal propagation behaviors. A multi?level safety evaluation framework for traction batteries across their lifecycle was proposed, integrating experimental and simulation approaches. This study provides theoretical support and practical recommendations for advancing traction battery technology and optimizing testing and evaluation methods.

To confirm that vitamin B2 and butyrate could synergically enhance the killing effect on gastric cancer cells. The inhibitory effect of the combination of vitamin B2 and butyrate on BGC-823 gastric cancer cells was observed by cck-8 method. The combined effect of the two components was evaluated by Chou Talay medium effect analysis, and the morphological changes of the cells were observed by optical microscope. The effects of combination of vitamin B2 and butyrate on apoptosis and cell cycle of BGC-823 cells were observed by flow cytometry. The expression of PTEN and its downstream PI3K protein were determined by Western blot method. Through the effect on the tumor bearing nude mouse model, the anti-tumor effect of the combination was observed in vitro. A multivariate discriminant model was established through metabolomics analysis of multimetabolites in the serum of Gastric cancer group and Control group, the differential metabolites were initially screened, the pathway enrichment analysis and metabolic pathway analysis were conducted on the base. The results of cck-8 cell viability and Chou-Talay showed that vitamin B2 could synergically enhance the killing effect of butyrate on BGC-823 cells, and during the action, it affected cell differentiation, resulting in the enlargement of cell morphology and the obstruction of cell division. Flow cytometry showed that the combination of vitamin B2 and butyrate could significantly increase the apoptotic ratio of gastric cancer cells and block the cell cycle in G2/M phase. Western blot results showed that the combination of vitamin B2 and butyrate could significantly increase the level of PTEN protein, but significantly decrease the expression level of PI3K downstream. In vivo, the combination of vitamin B2 and butyrate can significantly inhibit the growth of nude mice tumor. Multivariate OPLS-DA model was successfully established by human metabolomics analysis, suggesting that butyric acid and vitamin B2 are significantly different metabolites in gastric cancer patients. Pathway enrichment analysis and pathway analysis showed that the metabolic pathway of fatty acids and B vitamins plays an important role in gastric cancer patients. The combination of vitamin B2 and butyrate can synergically enhance the inhibitory effect on the growth of gastric cancer.

This study sorted out the implementation intelligence information related to the "National Standard Strategy for Critical and Emerging Technologies of the U.S. Government" released by the United States from May 2023 to February 2025, and summarized the implementation experience of this strategy from six aspects: extensive solicitation of opinions, establishment of professional organizations, adjustment of the technology list, cross-departmental collaboration, striving for international recognition, and introduction of supporting bills. Based on this, countermeasures and suggestions for promoting the development of key and emerging technology standards in China have been put forward from aspects such as improving the key and emerging technology system, perfecting the international standardization development strategy, widely soliciting opinions from stakeholders, establishing a multi-dimensional and cross-subject collaborative model, and strengthening the connection and coordination with existing policies.

Qian Xuesen's Systems Engineering Thought has had a significant impact in the field of science and technology. This paper explored the contemporary value and practical significance of Qian Xuesen's Systems Engineering Thought, pointed out that it integrates three cultures: China's excellent traditional culture, modern scientific culture, and Marxist culture. Qian Xuesen's Systems Engineering Thought is not only embodies the inheritance and development of traditional scientific thought but also fully absorbs and applies the latest achievements and methods of modern science, representing cultural confidence, scientific confidence, and innovative confidence.