This paper focuses on the latest progress of oil generation, storage, production and engineering transformation of Gulong shale oil in Songliao Basin and holds that the high oil generation and low hydrocarbon expulsion efficiency of Gulong shale provides important material basis for oil production. The micro-nano pore and fracture combination system widely developed in Gulong shale provides the spatial basis for shale oil reservoir. In terms of engineering transformation, engineering technologies such as increasing the proportion of guanidine adhesive fracturing fluid, using silt slug to plug micro-fractures near the well, reducing the number of clusters in the section, increasing the construction displacement, and using stress interference in a positive way are proposed to realize the joint network concept of "controlling near and expanding far" and improve the scale and degree of transformation. By quantifying the process and sequence of energy release through hydraulic elastic flooding, rock and fluid elastic flooding, and dissolved gas flooding, reasonable control of pressure and orderly release of elastic energy can be achieved to control the decline of volume development. Although the revolutionary transformation of continental facies shale oil from "oil generation" to "oil production" still faces major challenges in theoretical mechanism, the engineering technologies and benefit development, continental facies shale oilin a huge scale is one of the important goals to ensure national energy security in the future.

In the context of globalization, China is in a critical period transforming from traditional factor-driven development to innovation-driven growth in this paper, the importance, connotation, mode, and integration mechanism of the integration and development of the innovation chain and the industrial chain are discussed. Firstly, the necessity to integrate the innovation chain with the industrial chain is analyzed, emphasizing the supportive role of scientific research transformation in economic development and highlighting the innovation chain's role in supporting the industrial chain's development. Secondly, through discussing different innovation models, such as large user-led, production enterprise-led, government-led, and university research unit-led, and taking Fuxing Electric Multiple Unit and Huawei's 5G technology as examples, the significant contributions of large users and production enterprises to technological innovation are demonstrated. Concurrently, the integration mechanisms of the innovation chain and industrial chain are explored, aiming to resolve the contradiction between innovation and application and promote the effective transformation of innovation outcomes and the upgrading of the industrial chain. Finally, according to the analysis of the integrated development of innovation chain and industrial chain, relevant policy suggestions are put forward.

Under the background of the superpower games, the United States actively promotes the de Sinicization of key minerals and constructs a strategic blockade against China, which may seriously affect China's normal resource rights and interests. Based on the critical mineral related data released by the United States Geological Survey from 2013 to 2022, quantitative research was conducted from three perspectives: import dependence, market dynamics, and supply risk. The changes in the security of the critical mineral supply chain in the United States were elucidated, and the means and characteristics of strengthening the security of the critical mineral supply chain in the United States were analyzed. About 90% of critical minerals in the United States rely on imports, with China as its top supplier. The market dynamics of about 70% of critical minerals fluctuate violently, and market instability may amplify the import risk of critical minerals in the United States; About 32% of critical mineral supply risks are high or keep rising, and the production capacity of critical minerals further shifts to some thirdworld countries in Asia, Africa and South America, and the escalation of geopolitical crises may exacerbate mineral supply risks. Based on the analysis of the security situation of the key mineral supply chain in the United States and its security measures to strengthen supply chain, suggestions have been put forward, including systematic planning to respond to the strategic game of key minerals, enhance the influence on the international mineral resource market, deepen overseas development cooperation, and strengthen risk prevention and control.

Benefiting from the excellent thermal conductivity and flow properties of liquid metal, liquid metal convection cooling offers a new solution to the high heat flux thermal management of electronic devices and equipment. In this paper, the heat transfer and flow characteristics of liquid metal convection were introduced. Compared to traditional fluids, the high thermal conductivity of liquid metals resulted in lower overall thermal resistance, and the heat transfer performance was better. The relevant research progress of driving technology, hybrid cooling technology and heat transfer enhancement technology based on liquid metal convection were summarized. The application status of liquid metal convection in the field of electronic equipment cooling was briefly described. Finally, the challenges and development prospects of liquid metal convection cooling were discussed.

Flat heat pipe, due to its advantages of high heat transfer efficiency, great temperature uniformity, and safety and reliability, has become one of the important options for spacecraft thermal control. Optimization of wick structure is an important method to improve the flow and heat transfer performance of flat heat pipe. For the design of wick structures, the method of designing high performance wick structures was revealed, and guidance was provided for the selection and application of macromeso-micro multiscale numerical model. For wick surface modification, the importance to improve nanostructure mechanical stability, adjust heat transfer mechanism and carry out numerical simulation research was emphasized. To solve the problems of heat dissipation and high radiation in space environment, the development directions of flat heat pipe in spacecraft thermal control were figured out, and the shortcomings of current research were analyzed.

To reduce the energy consumption of electric vehicle heating system, a cascade heating system with multiple heat sources distributed based on waste heat recycling was designed. Firstly, the thermal load of the carriage was analyzed and calculated, providing a basis for the selection and matching of heating components. To explore the heating sequence and heat production, a heat release model for the power battery, drive motor, and controller was built, and simulation analysis using ANSYS was conducted to explore heat release laws. Considering the impact of heat released by drivers and passengers on the temperature inside the vehicle, a pyroelectric infrared technology was designed to detect the number of drivers and passengers, in order to estimate their heat release. A cascade collaborative heating method with multiple heat sources distributed was designed, and the optimal heating method could be selected in a timely manner based on the heat release law of the heat sources, environmental temperature, and the number of drivers and passengers. Finally, low-temperature tests were conducted on the heating air system, and the results showed that after operating for 2 hours at an ambient temperature of -22℃, compared with traditional electric vehicle heating, the proposed method saved 31.1% and 63.6% energy, respectively, verifying its superiority.

The mechanical properties and pore structure changes caused by the circulation of low-temperature cooling medium in high-temperature granite are of great significance to further understand the high-temperature rock engineering such as dry hot rock development. Taking Zhangzhou granite as the research object, uniaxial compression tests and micro pore structure tests were conducted to analyze the evolution of different characteristic parameters with the number of cycles, and to explore the degradation mechanism of granite after high-temperature and liquid nitrogen cycling. The experimental results showed that during high temperature and liquid nitrogen cycling treatment, the small pores inside the granite exhibited random and dynamic distribution, while the large pores exhibited widespread distribution. As the number of cycles increased, the nuclear magnetic porosity and peak strain of granite gradually increased, while the compressive strength and elastic modulus gradually decreased. The fracture mode of untreated granite was mainly shear or splitting failure with a single fracture surface, while the fracture mode of granite after high temperature and liquid nitrogen cycling was mainly shear and splitting failure with multiple fracture surfaces. The differences in mineral thermal expansion coefficients and changes in strength and pore structure were key factors inducing damage and deterioration of granite under high temperature and liquid nitrogen cycling.

In this article, the magnetic power loss of NdFeB magnetic material was calculated by combining experiment and simulation. The results showed that the magnetic power loss of NdFeB thermoseed in the magnetic field with frequency of 21~29 kHz and magnetic induction intensity of 2.7~3.7 mT was higher, and the thermal volumetric power density was in the range of 2.39×10⁶ W/m³~5.54×10⁶ W/m³ under the given magnetic field condition. The results were applied to the simulation of magnetic induction hyperthermia. The simulation results showed that the effective hyperthermia boundary of a single NdFeb thermoseed was ellipsoidal, with the short half-axis of 12.9 mm of and the long half-axis of 17.6 mm for the maximum effective hyperthermia range under the given magnetic field condition, indicating that NdFeB thermoseed could reach the heat generation power required for hyperthermia under low magnetic field frequency and magnetic induction intensity, which provided data support for the application of NdFeB material in magnetic hyperthermia.

Living heart, an emerging technology that integrates virtual reality (VR) with cardiac research, employs computational methods to simulate the physiological and pathological characteristics of heart, effectively replicating the real-time activities of a live-heart in terms of morphology, structure, and function. In this paper, the research progress of the key technologies of living heart in the visualization of cardiac anatomy, cardiac electrophysiological simulation model, and virtual heart organ-level coupling model is reviewed. The application prospect of living heart in cardiovascular disease pathogenesis, cardiovascular disease drug development, medical device research and development, medical teaching and clinical training is expected to provide new ideas for the realization of precision treatment of cardiovascular diseases.

Food safety is directly related to human health and safety, thus the development of food safety testing and related safety materials has become a research hotspot in the field of food safety. Aggregation-induced emission (AIE) material, due to their good optical stability and high sensitivity, plays an important role in the field of food safety. based on the introduction of the properties of AIE material, the relationship between its structure and AIE performance was discussed, the application of AIE in the field of food safety was also reviewed, including its application in the detection of foodborne pathogens, pesticide and veterinary drug residues, heavy metals, food additives, as well as its application in food quality assessment and food packaging materials. It can be predicted that the accurate design of AIE material structure and the effective regulation of luminous properties can further expand the application range of new AIE fluorescent materials in the field of food safety.

Seismic water temperature observation instruments (abbreviated as thermometer) plays a key role in short and imminent earthquake prediction. However, for a long time, there has been a lack of field detection method with quantitative traceability, which is, mobile calibration method. In this paper, two kinds of mobile calibration methods of thermometers, namely in situ comparison method and constant temperature chamber comparison method, are proposed, and the influence of these methods on the continuity of observation data is preliminarily verified by field experiments. The results show that under the conditions of the experimental well, the standard deviations of the observation data of the measured instrument before and after mobile calibration are close, with the maximum difference of -0.0002℃, the maximum difference of the variation amplitude of the indication value of -0.0053℃, and the calculated results of interference degree (ID) of all<50%. The influence of mobile calibration method on instrument data continuity is in the acceptable range. Although the method has some limitations in the scope of application, it is still a potential scheme to realize the traceability of station operating thermometers.

Gray water is a kind of domestic sewage with light extent of pollution, and rural grey water accounts for 60%~70% of rural domestic sewage. If it is properly used, the situation of rural water shortage will be greatly improved. algal-bacterial symbiosis system is a potentially efficient and economical treatment for rural gray water. In this study, the feasibility of practical application of this method was demonstrated by studying the biological activity and pollutant removal effect of single or symbiotic Chlorella-activated sludge system under free and immobilized states, and the variation rule of microbial growth under different conditions was analyzed. The experimental results show that, in the condition of no aeration, the photosynthesis of Chlorella can supply a certain amount of Dissolved Oxygen (DO) to the system, and the immobilized Chlorella-activated sludge system showed the best removal effect on the pollutants in simulated rural gray water (the removal rate of chemical oxygen demand 87.5%±2.89%; Ammonia nitrogen 65.34%±2.0%; Total Phosphorus (TP) 60.4%±4.29%; Linear Alklybezene Sulfonates (LAS) 91.07%±2.04%). The treatment effect was better than that of single fixed system and free system of bacteria or algae, and the biomass increased significantly compared with other experimental groups (p<0.05). The symbiotic effect between activated sludge and Chlorella was obvious. In the semi-continuous operation test, the immobilized algal-bacterial symbiosis system showed better pollutant removal stability. The unit cell chlorophyll content and Mixed Liquor Suspended Solids (MLSS) accumulation in the immobilized state were 1.6 and 1.5 times of that in the suspended state, respectively, and the biological growth was good in the immobilized state. In the immobilized state, the phylum flora retained more of the same category before and after the experiment, while the changing trend of Actinobacteria in the two experimental groups was different. During the experiment, LAS showed obvious enrichment of bacteria and strong inhibition of nitrobacteria activity, indicating that nitrogen removal in water was closely related to the biological activities of Chlorella.

Famous for the Riemann-Roch theorem, Gustav Roch, a renowned German mathematician and physicist, has promoted the development of algebraic geometry. Based on literature study and historical analysis, in this paper, Roch's life experience, major achievements and the related influence are reviewed. In his whole life, Roch demonstrated diligence and entrepreneurial spirit. He was brave to explore and persistent in scientific research, serious and responsible in teaching, and willing to serve as a ladder. His short life was full of infinite wisdom.