Exploration on Key Technologies and Practical Paths for Carbon Emission Reduction in Food System

On the basis of existing research,carbon emission reduction technologies in production,processing,packaging,transportation and storage of the food system were summarized,and their application effects were analyzed.In view of the inherent inadequacy of carbon emission reduction technologies in Chinese food system,starting from carbon labeling technologies and ESG system of the food industry,the unsoundness of the carbon emission reduction evaluation system and the high cost of related technology promotion,countermeasures such as strengthening top-level design,encouraging and supporting the development of new carbon emission reduction technologies,and improving carbon emission reduction technology subsidies were proposed by drawing on domestic and international experiences.

Rich Connotation,Realistic Dilemma,and Practical Path of Teachers’Digital Literacy in the Era of Digital Intelligence

With the rapid development of information technology and the popularity of the Internet,digital education has become an important direction of modern education reform.Digital education provides a new way and tool for education and teaching,so that teachers and students can make better use of the application of information technology in the teaching process.Teachers’digital literacy has become the key to realize digital education.In the digital age,the level of teachers’digital literacy directly affects teachers’teaching effect and students’learning results.Therefore,improving teachers’digital literacy has become an urgent task of education reform.

The Value Implication and Practical Path Yan'an Spirit into Middle School Education

During the Yan’an period,the Chinese Communists cultivated and formed the Yan’an spirit.The main contents of the Yan’an spirit include the firm and correct political direction,the ideological line of emancipating the mind and seeking truth from facts,the fundamental purpose of serving the people wholeheartedly,and the entrepreneurial spirit of self-reliance and hard work.The Yan’an spirit has played an important role in various periods of China’s revolution,construction,and reform.In the current era of socialism with Chinese characteristics,it is essential to extract the educational value of the Yan’an spirit.By incorporating the Yan’an spirit into middle school education,students can adhere to the correct political orientation,adhere to their ideals and beliefs,adhere to mind emancipation and seeking truth from facts,adhere to the people-centered approach,and adhere to self-reliance.The integration of the Yan’an spirit into classroom teaching,campus activities,project-based learning,and study trips plays a vital role in educating students about the Yan’an spirit,contributing significantly to the cultivation of successive generations of socialist builders and successors.

Intelligent Reflecting Surfaces Enabled Cognitive Internet of Things Based on Practical Pathloss Model

In this paper,we aim to unlock the potential of intelligent reflecting surfaces(IRSs)in cognitive internet of things(loT).Considering that the secondary IoT devices send messages to the secondary access point(SAP)by sharing the spectrum with the primary network,the interference is introduced by the IoT devices to the primary access point(PAP)which profits from the IoT devices by pricing the interference power charged by them.A practical path loss model is adopted such that the IRSs deployed between the IoT devices and SAP serve as diffuse scatterers,but each reflected signal can be aligned with its own desired direction.Moreover,two transmission policies of the secondary network are investigated without/with a successive interference cancellation(SIC)technique.The signal-to-interference plus noise ratio(SINR)balancing is considered to overcome the nearfar effect of the IoT devices so as to allocate the resource fairly among them.We propose a Stackelberg game strategy to characterize the interaction between primary and secondary networks.For the proposed game,the Stackelberg equilibrium is analytically derived to optimally obtain the closed-form solution of the power allocation and interference pricing.Numerical results are demonstrated to validate the performance of the theoretical derivations.

Unity of Ideological Connotation and Practice Path in CPC’s Party-Building

The unity of ideological connotation and practice path,as the basic requirement of Marxist dialectical materialism principle,is also requested in“putting the party’s political construction in the first place”.The ideological connotation guides the practice path,which in turn serves the ideological connotation.We should employ the scientific ideological connotation to guide the practice path which can be used to enrich the scientific ideological connotation.

Practice of "Curriculum Ideology and Politics" in Industry-Specific Universities

College education combined with"curriculum ideology and politics" has become the main trend of education development.This article briefly introduces the related concepts of"curriculum ideology and politics,"analyzes the necessity of "curriculum ideology and politics"in industry-specific colleges and universities,as well as explores the practice of"curriculum ideology and politics"in these colleges and universities.

Understanding the Main Line,Characteristics and Practice Path of Historical Initiative:Under the Guidelines of the 20th National Congress of the CPC

Theoretically based on historical materialism,the historical initiative of the Communist Party of China(CPC)is a precious character of creating new prospects amid changing circumstances consciously and proactively to acquire benefits for Chinese people.Integrated into its centenary history and showing highlights in different historical periods,the CPC’s historical initiative features dialectical unity between problem orientation and mission pursuit,upholding fundamental principles and breaking new ground,regularity and consciousness,as well as the leadership of the CPC and the pioneering spirit of the people.To accomplish the Second Centenary Goal and advance national rejuvenation,the CPC will follow the path of socialism with Chinese characteristics under the guidance of Marxism,stay committed to achieving national rejuvenation,unite and rely on the people,and stimulate the spirit of innovation and creation,thereby pooling more proactive spiritual strengths to make greater contributions in the new era.