Content Dimensions Research Articles

Health promotion for the unemployed: the evaluation of the JOBS Program Germany from the trainers’ perspective

BackgroundThe JOBS Program Germany is a labor market integrative and health promotion intervention for unemployed people. This study examines JOBS Program Germany trainers’ view of (1) the theoretical concept of the JOBS Program, (2) its practical implementation in Germany on-site, (3) its acceptance by participants, and (4) the training effects. The study aimed at identifying potential for adaption allowing adjustments to improve the practical implementation and the training effectiveness.MethodsJOBS Program Germany trainers (two for each training) were interviewed via voluntary survey (computer-assisted web interviews) after each training.ResultsFourteen JOBS Program trainings have been conducted and all trainers responded resulting in 28 interviews. 78.5% and 85.7% of the respondents were rather or very satisfied with the theoretical contents and its practical implementation, respectively. Almost all trainers (96.4–100.0%) were satisfied with the on-site coordination, the cooperation with the organizer’s employees, the room equipment, the training room size, and the environmental conditions in the training rooms. In 89.3% of all responses the trainers rated the last training a success. However, the trainers also provided valuable suggestions for further improvement in Germany. This concerns the revision of the training manual, the adjustment of the trainer training and the preparation of participants.ConclusionBesides the trainers’ positive view on the different dimensions of the training content and implementation, their suggestions can help ensure that many unemployed people in Germany could benefit from a continued regular implementation of the JOBS Program Germany in the future.Trial RegistrationGerman Clinical Trials Register (DRKS), DRKS00022388. Registered on 20 July, 2020.

USING THE METHOD OF CONFIRMATORY FACTOR ANALYSIS FOR THE SIMULATION OF TECHNICAL SYSTEMS

Problem statement. Analyzing the dynamics of the functioning of complex technical systems, which are characterized by a certain architecture and the interaction of system components, in most cases, there are certain difficulties associated with the description of system-wide issues. Among such issues, first of all, it is possible to include problems related to the direct mathematical formalization of the overall system structure, the organization of relationships between its elements, the interaction of system elements with its external environment, control of the activities of its elements, etc. In such cases, most often researchers use the procedure of mathematical modeling. At the same time, there is a fairly large range of phenomena, in the analysis of which it is possible to use the traditional apparatus of mathematical modeling. In such situations, it is possible to apply modeling techniques that represent the model in the form of an algorithmic program for an electronic computer, the so-called simulation modeling. The purpose of the article. Application of simulated physical and mathematical modeling by the method of confirmatory factor analysis for the study of complex technical processes. Conclusion . The relationship between the parameters of the laser welding mode and the morphological criteria of the structural state of low-carbon low-alloy steel 09Г2С was investigated using the mathematical apparatus of simulation modeling, namely confirmatory factor analysis. The confirmatory factor method was implemented in the form of a path diagram, namely a graphical interpretation of the relationship between the structural condition criteria and laser welding parameters. The percentage content and geometric dimensions of the main structural components of ferrite and pearlite were used as criteria for the morphology of the structural state, and the geometric dimensions of the welded joint sections were used as welding parameters. The adequacy of the obtained model was confirmed by constructing a probability plot of normalized residuals according to the quasi-Newtonian method of residuals.

Attitudes towards vaccination among parents of children aged 0-5 years: A scale development study.

Vaccination is the most important public health practice for preventing infectious diseases and maintaining health. However, some parents are hesitant to vaccinate their children. This study was designed as an instrument development study. This study aimed to develop a scale to measure the attitudes of parents with children aged 0-5 years towards vaccination and to evaluate the validity and reliability of this scale. The data were collected from 691 participants between November 2020 and January 2021. During the development of the scale, experts provided feedback on its technical, content and language dimensions. The data were analysed using exploratory and confirmatory factor analyses for conceptual validity and Cronbach's α and item-level test-retest analyses for reliability. The developed scale is a reliable and valid tool for measuring attitudes towards vaccination among parents (Cronbach's α = 0.97, variance explained by these 28-item two factors = 62.47%). This scale can be used as a guide in measuring the attitudes of parents towards vaccination and determining the direction of primary health-care services based on the results of the measurement.

Discursive Practice as the Basis for the Modern Theory of Literary Translation

The purpose of this article is to consider the issues of literary translation as a practice that is not only linguistic or intercultural, but has a discursive ontology. Currently, translation theory is moving away from the analysis of translation only in the dimension of working with text, moving towards analysis in the volumetric dimension of the contextual content of the meaning transferred to a different language and culture. Translation, as a practice, can itself become the starting point that generates discourse, while involving many linguistic and extralinguistic factors. In the process of this study, methods such as bibliographic analysis were used to determine the degree of study of the topic, as well as an analysis of discursive translation practice. It is the approach to translation from the point of view of discourse that allows us to move away from the rigid dilemma associated with translatability or untranslatability. In result, it’s possible to conclude, that discursive practice allows us to look at translation as a dynamic process in which the narrative unfolds on several levels at once, which means that there is no longer a critical need to determine the quality of translation only by questions of achieving equivalence.

Communication preferences and perceptions of cancer patient during their first medical oncology appointment.

The first medical oncology appointment serves as a platform for patients to comprehend their diagnosis and prognostic implications of cancer. This study aimed to determine patients' communication preferences during their first medical oncology appointment and to assess the disparities between patients' preferences and perceptions. A total of 169 cancer patients participated by completing the Communication in First Medical Oncology Appointment Questionnaire (C-FAQ), a two-section questionnaire designed to assess patients' preferences and perceptions regarding Content (information provided and its extent), Facilitation (timing and location of information delivery), and Support (emotional support) during their first medical oncology appointment. A comparative analysis was conducted to assess the variations between preferences and perceptions. Content emerged as the most significant dimension compared to Facilitation and Support. The physician's knowledge, honesty, and ability to provide clear information were considered the most important attributes. Patients evaluated most of their preferences as "very important". Patients' perception of the communication dimensions present during their appointment was below preferences for 11 items, indicating significant discrepancies in clinical practice. Patients highly valued their preferences concerning Content, Facilitation, and Support dimensions of communication. However, patient preferences were more prominently oriented towards the Content dimension. The discrepancies between preferences and perceptions should be viewed as an opportunity for enhancing communication skills through training.

Organizational memory is an approach to achieving institutional excellence in Saudi universities in light of the experience of the United States of America (Proposed concept)

The study aimed to build a proposed conception to identify organizational memory as an entry point for achieving institutional excellence in Saudi universities in light of the experience of the United States of America. By revealing the dimensions of organizational memory in Saudi universities (the level dimension, the content dimension, the forms dimension, the direction dimension, the formation dimens ion) and determining the degree of achieving institutional excellence in Saudi universities with its dimensions (leadership, operations, human and financial resources, knowledge) And to reveal the contribution of the dimensions of organizational memory to achieving institutional excellence. To achieve the objectives of the study, the study followed the descriptive analytical approach, where the sample consisted of (303) leaders. A questionnaire was built that consisted of two axes: the first measures the degree of dimensions of organizational memory, and the number of its paragraphs was (24). A paragraph and the second axis measure the dimensions of institutional excellence, and the number of its paragraphs is (20) paragraphs. The validity and stability of the study tool was confirmed by applying to the exploratory sample. The study found that the dimensions of organizational memory were practiced in the total degree (medium) with an arithmetic average of (3.00), and all dimensions appeared with an average practice degree, and the level dimension of organizational memory came in the first rank with an arithmetic average of (3.25), then the dimension of shapes ranked The second, with an arithmetic average of (3.19), then the content dimension (2.97), then the orientation dimension (2.81), then the “formation dimension in the last rank” with an arithmetic average of (2.78), and it was found that institutional excellence was achieved at a medium degree (2.95) It came after excellence in knowledge management with a high degree (3.52), then operations (2.95), human and financial resources (2.85), and leadership at the last rank and with a medium degree (2.83). It was also found that the dimensions of organizational memory contribute by 94% to achieving institutional excellence, which was the highest. For the dimension of organizational memory forms (33%), organizational memory formation (29%) and guidance (11%), the study recommended applying the proposed vision and training leaders on methods of building organizational memory to achieve institutional excellence.

A Deep Learning Approach with Extensive Sentiment Analysis for Quantitative Investment

Recently, deep-learning-based quantitative investment is playing an increasingly important role in the field of finance. However, due to the complexity of the stock market, establishing effective quantitative investment methods is facing challenges from various aspects because of the complexity of the stock market. Existing research has inadequately utilized stock news information, overlooking significant details within news content. By constructing a deep hybrid model for comprehensive analysis of historical trading data and news information, complemented by momentum trading strategies, this paper introduces a novel quantitative investment approach. For the first time, we fully consider two dimensions of news, including headlines and contents, and further explore their combined impact on modeling stock price. Our approach initially employs fundamental analysis to screen valuable stocks. Subsequently, we built technical factors based on historical trading data. We then integrated news headlines and content summarized through language models to extract semantic information and representations. Lastly, we constructed a deep neural model to capture global features by combining technical factors with semantic representations, enabling stock prediction and trading decisions. Empirical results conducted on over 4000 stocks from the Chinese stock market demonstrated that incorporating news content enriched semantic information and enhanced objectivity in sentiment analysis. Our proposed method achieved an annualized return rate of 32.06% with a maximum drawdown rate of 5.14%. It significantly outperformed the CSI 300 index, indicating its applicability to guiding investors in making more effective investment strategies and realizing considerable returns.

Characterization on the mesostructural distribution of asphalt mixtures via digital image processing and relation to macroscopic performances

The distribution characteristics of the mesostructure of asphalt mixtures have an important influence on the macroscopic performance of asphalt mixtures. In this study, by means of industrial computed tomography and voxel analysis, the distribution of voids and skeleton microstructure of asphalt mixture is characterized from multiple perspectives. The relationship between mesostructural characteristic parameters and macroscopic properties of asphalt mixtures was established by the indirect tensile test, uniaxial compression test, and digital image correlation test. The results show that the mesostructural distribution of the voids of different types of asphalt mixtures shows a certain degree of transverse isotropy. Air voids content and fractal dimension of voids are the mesostructural characteristic parameters that affect the cracking resistance of asphalt mixtures at low temperatures. The air voids content has a negative exponential relationship with the strength of asphalt mixture. When the void fractal dimension is 1.3, the splitting tensile strength of asphalt mixture reaches the maximum value. Skeleton structure is a mesostructure characteristic parameter that affects the high temperature stability of asphalt mixture. The lower voids in coarse aggregate skeletons and degree of anisotropy are positively correlated with the uniaxial compressive strength. After voids in coarse aggregate skeletons are lower than 35 %, the uniaxial compressive strength of asphalt mixture is significantly improved. The proposed skeleton evaluation index can effectively characterize the material composition differences of different types of asphalt mixtures. The strain cloud diagram of the digital correlation experiment shows the place where the void distribution first reached the maximum strain of about 0.003 during loading, and the high strain area corresponds to the void centroid distribution. The air voids centroid distribution is the mesostructural characteristic parameter of the indirect tensile strain distribution.

The Construction and Communication of National Image by Publicity Documentary Subtitle Translation from Multi-Modal Perspective: A Case Study of China on the Move

With the evolution of globalization, the world pattern has become more open and diverse. A good national image is the strategic capital for friendly exchanges and cooperation between countries. The shaping and dissemination of national image have become the most important game strategy for countries in international political and economic competition. As one of the most important media of external communication, publicity documentary fully embodies the construction of national image. This study is based on the perspective of multimodal discourse analysis, using the cultural, contextual, and content dimensions of the multimodal discourse analysis framework proposed by Zhang Delu as the specific research and analysis path. The bilingual subtitles of the documentary China on the Move are used as the corpus, and an overall example analysis is conducted from the cultural and contextual levels. Then, a specific analysis is conducted from the content level on the modality in the documentary. Through subtitle translation, explain how documentaries achieve precise construction and accurate communication of the national image through multimodal cooperation.

Measuring, representing and analysing indoor soundscapes: A data collection campaign in residential buildings with natural and mechanical ventilation in England

A model for the assessment of perceived affective quality of indoor residential soundscapes is first applied in a field survey carried out in 61 dwellings in England. Objectives are i) to investigate measurement and indoor soundscape data representation, ii) to characterize soundscape appropriateness for home working and relaxation, iii) to test differences based on the ventilation strategy, and iv) to identify factors predicting indoor soundscapes. In dwellings with natural ventilation (N = 34) the survey was carried out with windows open, while in those with mechanical ventilation (N = 27) with windows closed and the system in operation. Parallel to the administration of the questionnaire, monaural and binaural measurements of the acoustic environments were performed. The study provides examples of data representation in the circumplex space defined by comfort and content dimensions. Soundscapes which are appropriate for work and relaxation are characterized by high comfort and low content, i.e., perceived as private and under control. Indoor soundscapes are strongly related to the perception of traffic noise, window opening, and sound pressure level, especially in the energy content of interference in speech perception through the Speech Interference Level parameter (SIL), factors that lead to reduced comfort and increased saturation of the environment. Moreover, aspects related to psychoacoustics (sharpness), contextual and building-related factors (ownership status and floor level) and cross-modal effects from other sensory modalities (perceived air quality and air temperature) have an impact. A threshold value of 32.7 dB for SIL was identified at which a neutral comfort is attained.

역사학의 방법에서 역사문화콘텐츠적 접근으로의 전환

The purpose of this study is to explore the contemporary meaning of the historical-cultural contents area. To this end, discussions were conducted to understand historical-cultural contents as a way to deal with various pasts beyond recognizing them in the realm of existing historical studies. Specifically, it pointed out that the existing methodology of history is focused on ensuring objectivity, and paid attention to the problem of “sympathy” that occurs at this time. Since then, the meaning of historical-cultural contents has been examined through content and formal dimensions, that is, 'faction' and 'historytelling'. As a result of the discussion, historical-cultural contents can deal with various pasts as a faction. This makes it possible to deal with the past of the 'gap' that exists between 'real facts' and 'historical facts'. In addition, through historytelling, various communications are made in relationships such as “historian and the public,” “public and the public,” and “past and the public,” rather than “one-sided conversations with historians.” In summary, historical-cultural contents provide various ways to remember the past in addition to the aspects of “utilization” and “activation measures” as an extension of existing historical studies. Therefore, it is necessary to understand historical-cultural contents as a way to deal with the past anew beyond looking at them from the perspective of scientific and historical history. Through this, the past can be (re)processed in more various ways.

Emotions of CLIL Preservice Teachers in Teaching Non-Linguistic Subjects in English

This paper reports an exploratory, descriptive study on the emotions of content and language-integrated learning preservice teachers. The study, carried out in a Spanish university, aimed at analysing the internship experience of 19 preservice teachers in the context of a master’s degree in bilingual education (Spanish–English) for primary and secondary school teachers to determine the emotions experienced and the causative factors. The participants completed a questionnaire which showed that positive emotions were more frequent than negative ones. The variable causing such feelings included the subject taught, the sex of the teaching staff, previous experience, attitudes of educational centre tutors, and the students themselves. Therefore, the study highlights the affective dimension of teaching content and language-integrated learning.

Towards transformation-oriented planning: what can sustainable urban mobility planning (SUMP) learn from transition management (TM)?

ABSTRACT The European Commission’s concept of Sustainable Urban Mobility Planning (SUMP) aims to prepare transport planners for the challenge of fundamental transformations to achieve climate-neutral and sustainable cities. While the concept has been widely adopted by European cities over the last decade, it can be asked whether SUMP is able to trigger the required transformative change in mobility systems. This paper critically reflects on the SUMP concept by systematically comparing it with the theoretical governance framework of Transition Management (TM), which is explicitly designed to foster transformative change. Based on a literature review, we examine similarities and differences between these approaches regarding the planning dimensions of context, content and process. Drawing on this comparison, the paper demonstrates how SUMP could learn from TM in practice and research in four main ways: (i) utilising transition theory to better address transition features; (ii) using collaborative formats from TM while taking account of legitimacy concerns; (iii) incorporating backcasting approaches; and (iv) explicitly integrating experiments into the process cycle. The paper exemplifies how insights from transition research can stimulate the further development of procedures, methods and tools towards transformation-oriented planning.

Evaluasi Usability Aplikasi Android Dharmadana Menggunakan Metode End User Computing Satisfaction (EUCS)

Dharma Dana is an obligation of Hindus of 5% of income in accordance with the Bhisama Sabha Pandita Parisada concerning the fund. The amount of the Dharma Fund that is deposited to the Badan Dharma Dana Nasional (BDDN) is 2.5% of income. Parisada Hindu Dharma Indonesia Pusat as the supreme assembly for Indonesian Hinduism has the goal of creating a Hindu society with high belief, commitment and loyalty to the teachings of Hinduism towards physical and spiritual well-being. To make it easier for people to make funds (donations), an android-based application was created with the name Dharmadana application. Android applications are currently developing very quickly and have become an alternative media that can be used to convey the information needed by customers without any time or place limitations. One model for evaluating this android application is End User Computing Satisfaction (EUCS). EUCS is a method for measuring the level of satisfaction of users of an application system by comparing the expectations and reality of an application. The EUCS evaluation model was developed by Doll & Torkzadeh. Evaluation using this model places more emphasis on end user satisfaction with technological aspects based on 5 (five) dimensions, namely content dimensions, accuracy dimensions, format dimensions, ease of use dimensions, and dimension of timeliness. The results showed that most of the Dharmadana applications (68.42%) were installed by generation X (born 1960 to 1980). The quality of the application on a scale of 5 for the content dimension is very good (average score 4.14) while for other dimensions the quality is good. The dimensions of accuracy score 3.82, format score 3.87, ease of use score 3.91, and timeliness score 4.00. Quality needs to be improved for application features on dimensions with score good.

Construction of Political Identity on Instagram: Unveiling the Kadrun Hashtag Movement in Indonesia's 2024 Presidential Election


 
 
 
 
 
 This scientific article investigates the construction of political identity through hashtag movements on Instagram, focusing on the "#kadrun" hashtag related to Anies Baswedan, a presidential candidate for the 2024 election in Indonesia. Using the framing analysis method by Zhong Dang Pan and Gerald M. Kosicky, the study examines the structural dimensions of political identity content by observing and analyzing the hashtag from October 3, 2022, to May 3, 2023. The results reveal three Instagram accounts actively contributing and acting as political identity buzzers, uploading 89 to 92 contents within seven months. The hashtag frames Anies Baswedan and his supporters as a radical Islamic group, seeking to establish a caliphate, and intolerant, potentially leading to political polarization based on religion, community, and ethnicity in the upcoming election. These findings hold implications for understanding the impact of social media content on political discourse and polarization, especially among young active voters who rely on Instagram as a source of information during elections.
 Highlight:
 
 
 Research Scope: The study explores the construction of political identity on social media, particularly through hashtag movements on Instagram related to the 2024 presidential candidate in Indonesia, Anies Baswedan, and the "#kadrun" hashtag.
 
 
 Framing Analysis: Utilizing the framing analysis method by Zhong Dang Pan and Gerald M. Kosicky, the research examines the structural dimensions of political identity content on Instagram, focusing on message characteristics and content design from October 3, 2022, to May 3, 2023.
 
 
 
 
 
 
 
 
 The hashtag spreads messages identifying Anies Baswedan as a radical Islamic group, causing potential religious-based political polarization, as seen in the 2019 Election. Additionally, ethnic elements now contribute to polarization based on religion, community, and ethnicity in the 2024 elections.
 
 
 
 
 
 
 
 
 Keyword: Political Identity, Social Media, Hashtag Movements, Instagram, Political Polarization.
 
 
 
 
 

Doing and saying content: a comparative analysis of the practical knowledge in PE lessons

ABSTRACT Background: Content of physical education, such as games, fitness or dance as well as their adequate didactical (re-)presentation for learning purposes are central topics of discussion in sports pedagogy. The concrete processes that constitute the content of PE lessons in situ tend to remain unconsidered in the discussion. Thus, there is a particular lack of detailed studies that can describe how the content is socially constructed and what becomes the content of a PE lesson [Amade-Escot, C., and M. O'Sullivan. 2007. ‘Research on Content in Physical Education: Theoretical Perspectives and Current Debates.’ Physical Education and Sport Pedagogy 12 (3): 185–203]. Purpose: The paper presents initial findings on the practical constitution of content during PE lessons from a praxeological perspective. Method: We examined videotaped lessons in PE from elementary school. The focus here is on the comparison of two lessons in which mainly one game is played (Zombieball and Burnball). For the reconstruction of the doings and sayings and the practical knowledge we use the documentary method. As a sequence analysis, it is designed to identify practical knowledge in the form of collectively shared orientation frameworks of social practice [Bohnsack, R. 2014. ‘Documentary Method.’ In SAGE Handbook of Analyzing Qualitative Data, edited by Uwe Flick, 217–233. London: SAGE]. Findings: Both the two lessons researched and the games played are constituted by several practices: anticipating, announcing, and preparing a game; playing and accompanying a game; ending and debriefing a game. In this similar doings and sayings, we find case-specific differences in the orientation frameworks of constituting and maintaining PE lessons. With flowification of PE lessons, we describe a central and collectively shared orientation towards getting and keeping the game Zombieball going in a way of hurrying through the lesson (case A). With personification of PE lessons, we describe the collective orientation towards getting and keeping the game Burnball going in such a way that all students can play along. In particular, this means that one specific student must be integrated into the game above all others (case B). Discussion: By flowification and personification, we have discovered two orientation frameworks that are visible in all phases of PE lessons, but these are especially important in the phase of play. We speak of a – fication because both orientation frameworks become the centre of educational attributions of meaning and they produce specific lesson content. The analyses indicate that, at first glance, similar practices open up different spaces of meaning with regard to the content dimension. The basis for this is different practical knowledge. The ‘real’ content, which practically provides learning opportunities to students, is simultaneously produced and modified by more or less shared knowledge which is experienced and incorporated along the respective history of the common PE.

Classroom Learning Management Using Component Display Theory in Islamic Education Courses

Purpose: To analyze the effect of using CDT in classroom learning management in Islamic Education courses. Theoretical framework: The CDT is a learning theory that integrates aspects of humanism, behaviorism, and cognitive theory. The CDT produced a taxonomy that has the potential to be beneficial in the process of determining learning objectives since it makes use of two dimensions. The content and capability dimensions are the names given to these two categories of consideration. Design/methodology/approach: The research was carried out for two semesters (one academic year), namely the 2021/2022 academic year, for research activities ranging from problem determination, title, proposal, data collection, data analysis, validation, and research reports. The method used in this research is developed as proposed by Borg and Gall. Findings: This research shows that using CDT in classroom learning management in Islamic Education courses positively impacts students' understanding and skills. The practical recommendations from this research can provide helpful guidance for lecturers and instructors in improving classroom learning management and student learning experiences. Thus, this research has important implications for improving the effectiveness of learning and development of Islamic education. Research, Practical & Social implications: This study recommended being able to apply the CDTs learning model to courses with Islamic characteristics whose learning materials are sourced from the Quran and Hadith. It can also be tested in courses that instill values, such as the Pancasila Education course or the Civic Education course. Originality/value: This research provides a better understanding of the effectiveness of using CDT in classroom learning management in Islamic Education courses. The results of this study provide empirical evidence on the positive influence of this approach on students' understanding and skills. Thus, the benefits of this research are to improve the effectiveness of learning and optimize the teaching-learning process in Islamic Education courses.

A Study on the Representation of Global Competence in English Textbooks for Higher Vocational Education in China

This study aims to analyze the representation of global competence in English textbooks for higher vocational education in China. A two-dimensional textbook theoretical framework based on global competence was developed, including four indicators of global competence (vertical) and 3 dimensions of textbook content (horizontal). Through a combination of qualitative and quantitative content analysis, we analyzed the representation of global competence in a set of Chinese higher vocational English textbooks (D version textbooks) in terms of content level, rendering location, and representation form. The results showed that the D version textbooks covered all of global competence indicators, among which the indicator of knowledge and understanding of global competence is the most and the attitudes and values is the least. The 16 sub-indicators of global competence presented differently in content levels, implicitly in the rendering location, and with “reading comprehension,”“oral communication” and “integrated application” as the main representation forms. This theoretical framework is an extension of global competence theory in textbook study and is also a useful tool for content analysis on non-linguistic knowledge of English textbooks.

Research on China's renewable energy policies under the dual carbon goals: A political discourse analysis

The development of renewable energy (RE) is an effective solution to address the global greenhouse effect and climate change. China's government has enacted a series of RE policies that play an important role in regulating and developing strategy. The development of national RE cannot be separated from the multidimensional guidance and support of policies, and policy analysis can be one of the important indicators of energy industry trends. However, currently, few studies conducted to research whether these policies are performing their intended functions and roles in driving the energy transition. This study constructed a framework from the dimensions of text content and discourse function analysis and used NVivo12 software to analyze seven important renewable energy policy discourses (2000–2022) enacted by the Chinese government to summarize the word frequency of renewable energy policies and the discourse functions they perform. The study finds that China's renewable energy policies are mainly guided by five-year plans, the types of renewable resources are constantly improved, and the policies themselves play a strong role in promoting the achievement of the dual-carbon goal. Due to the RE policies' lack of top-level design; the future development of implementation policies should fully stimulate the initiative and enthusiasm of the main subjects, such as government, enterprises and the public, and promote synergy and cooperation among subjects. Accelerating the global cooperated low-carbon scientific and technological innovation is an effective means to break through technical constraints. Finally, the paper puts forward suggestions on China's renewable energy policy to implement the dual carbon goals during its 14th Five-Year Plan period.

Study of the Macro and Micro Characteristics of and Their Relationships in Cemented Backfill Based on SEM

Nuclear magnetic resonance can only quantitatively obtain porosity and pore size distribution, but as a conventional microstructure observation technology, scanning electron microscope (SEM) can select different magnifications to observe the microstructure of backfill materials. However, the processing of SEM images is not deep enough. In this paper, Image-Pro Plus 6.0 software was used to extract the data from SEM images, and the parameters of the area, and the perimeter, aspect ratio and roundness of the pores in the SEM images were obtained. The fractal characteristics of the pores in the SEM image were obtained by using the slit island method fractal theory. The concretization and quantification analysis of the pores’ complexity were achieved. A functional relationship model for the strength and pore parameters was constructed; thus, the influence law of pore characteristics on strength was quantitatively analyzed. The conclusions included: (1) Pore parameters indicate that most pores in backfill are irregular, and only a few pores are regular—however, the whole structure has good fractal characteristics (R2 > 0.96). (2) The fractal dimension of pores is directly proportional to the roundness, the aspect ratio, and the pore content of pores—which indicates that the complexity of pores is related to both pore shape and pore content. (3) The strength had a linear inverse relationship with the roundness, aspect ratio, pore content, and fractal dimension—which indicates that all characteristics of pores have a certain influence on the strength.