A novel fracture-cavity reservoir outcrop geological knowledge base construction method considering parameter collection and processing,mutual transformation of data-knowledge,application and update

This study endeavors to formulate a comprehensive methodology for establishing a Geological Knowledge Base(GKB)tailored to fracture-cavity reservoir outcrops within the North Tarim Basin.The acquisition of quantitative geological parameters was accomplished through diverse means such as outcrop observations,thin section studies,unmanned aerial vehicle scanning,and high-resolution cameras.Subsequently,a three-dimensional digital outcrop model was generated,and the parameters were standardized.An assessment of traditional geological knowledge was conducted to delineate the knowledge framework,content,and system of the GKB.The basic parameter knowledge was extracted using multiscale fine characterization techniques,including core statistics,field observations,and microscopic thin section analysis.Key mechanism knowledge was identified by integrating trace elements from filling,isotope geochemical tests,and water-rock simulation experiments.Significant representational knowledge was then extracted by employing various methods such as multiple linear regression,neural network technology,and discriminant classification.Subsequently,an analogy study was performed on the karst fracture-cavity system(KFCS)in both outcrop and underground reservoir settings.The results underscored several key findings:(1)Utilization of a diverse range of techniques,including outcrop observations,core statistics,unmanned aerial vehicle scanning,high-resolution cameras,thin section analysis,and electron scanning imaging,enabled the acquisition and standardization of data.This facilitated effective management and integration of geological parameter data from multiple sources and scales.(2)The GKB for fracture-cavity reservoir outcrops,encompassing basic parameter knowledge,key mechanism knowledge,and significant representational knowledge,provides robust data support and systematic geological insights for the intricate and in-depth examination of the genetic mechanisms of fracture-cavity reservoirs.(3)The developmental characteristics of fracturecavities in karst outcrops offer effective,efficient,and accurate guidance for fracture-cavity research in underground karst reservoirs.The outlined construction method of the outcrop geological knowledge base is applicable to various fracture-cavity reservoirs in different layers and regions worldwide.

Content Characteristics of Knowledge Integration in the eHealth Field:An Analysis Based on Citation Contexts

Purpose:This study attempts to disclose the characteristics of knowledge integration in an interdisciplinary field by looking into the content aspect of knowledge.Design/methodology/approach:The eHealth field was chosen in the case study.Associated knowledge phrases(AKPs)that are shared between citing papers and their references were extracted from the citation contexts of the eHealth papers by applying a stem-matching method.A classification schema that considers the functions of knowledge in the domain was proposed to categorize the identified AKPs.The source disciplines of each knowledge type were analyzed.Quantitative indicators and a co-occurrence analysis were applied to disclose the integration patterns of different knowledge types.Findings:The annotated AKPs evidence the major disciplines supplying each type of knowledge.Different knowledge types have remarkably different integration patterns in terms of knowledge amount,the breadth of source disciplines,and the integration time lag.We also find several frequent co-occurrence patterns of different knowledge types.Research limitations:The collected articles of the field are limited to the two leading open access journals.The stem-matching method to extract AKPs could not identify those phrases with the same meaning but expressed in words with different stems.The type of Research Subject dominates the recognized AKPs,which calls on an improvement of the classification schema for better knowledge integration analysis on knowledge units.Practical implications:The methodology proposed in this paper sheds new light on knowledge integration characteristics of an interdisciplinary field from the content perspective.The findings have practical implications on the future development of research strategies in eHealth and the policies about interdisciplinary research.Originality/value:This study proposed a new methodology to explore the content characteristics of knowledge integration in an interdisciplinary field.

Investigation into the knowledge base of TEFL teachers in China

The key issues and challenges facing TEFL teachers in China with respect to prospective teacher preparation and professional development are discussed. Drawing upon earlier research on conceptual frameworks, the knowledge base of pre-service teachers is examined through research into the curriculums in TEFL education across diploma, undergraduate and postgraduate levels. A comparative study of the curriculum structures in the education of TEFL teachers reveals a number of key areas of concern： the main hindrance to the development of a stronger knowledge base of pre-service teachers lies in the serious shortage of pedagogical content knowledge, fundamental pedagogical knowledge that are currently available, as well as with the overall inadequacy of practicum hours. It strongly argues for the breadth versus depth in course design and calls for the imperative to reconceptualize the knowledge base of pre-service teachers.

Mathematics Knowledge of Proof in Geometry： Pre-Service Teachers＇ Perspectives

This article is based on research on pre-service teachers＇ perspectives on their mathematics knowledge of proof in geometry. The study was framed using tile mathematical knowledge for teaching framework. This qualitative study employed the use of a task-based worksheet, focus group sessions and semi-structured individual interviews. The task-based worksheet was completed by 180 pre-service mathematics teachers （second, third and fourth year mathematics education students）. Pre-service mathematics teachers are student teachers who have not yet completed their training to become teachers. After the analysis of the task-based worksheet, 20 participants were invited to participate in focus group sessions and individual interviews. The findings of the study reveal that the participants possess peripheral mathematics knowledge of proof in geometry. The study aims at assisting pre-service teachers and interested educationists to explore innovative methods of acquiring and imparting mathematics knowledge of proof in geometry. The study proposes possible changes in curriculum at school and university level.

Applying Nearpod to the Teaching Chinese as a Second Language Class to Enhance Interactions and Collaborations in the Secondary Schools

The quick spread of the epidemic since 2019 together with fast advancing of technology has exposed teachers to online education,including Teaching Chinese as a Second Language(TCSL)classrooms.Some Chinese as a Second Language(CSL)teachers were reluctant to utilize technology tools in their teaching due to the lack of technological knowledge.Thus,this study designed a CSL curriculum with the lens of the TPACK framework(Technological Pedagogical Content Knowledge).Nearpod was specifically adopted as a web-based technology tool to support the teaching Chinese language due to its powerful functions provided.Nearpod allows teachers to design interactive activities in multiple ways to facilitate interactions and collaboration in the CSL learning process.This paper aimed to help Chinese teachers improve their understanding of how to effectively integrate technology into CSL teaching.Chinese teachers will develop a deeper comprehension of distance teaching from the perspectives of technology,pedagogy,and content knowledge,enhance students’deeper learning,and promote interaction and collaboration in L2 class.The effective use of the technology can develop language skills in a meaningful context knowledge with the guidance of pedagogical content knowledge.

PCK Study of Middle School Chemistry Teachers in Yan'an Based on the Core Quality of Chemistry Subject

The new round of curriculum reform requires the promotion on the development of students'core literacy,and how the core literacy of chemistry can take root in the chemistry classroom is inseparable from the guidance and nurture of teachers in the teaching process.The"Professional Standards for Secondary School Teachers"clearly stipulates that pedagogical content knowledge(PCK)is regarded as the professional knowledge of teachers.PCK is the core content of teachers'professional knowledge and an important guarantee for teachers to carry out teaching activities.Teachers5 PCK level is not only a direct measure of their teaching achievements,but also an important criterion for guiding novice teachers to become experienced teachers.The research subjects selected for this study are the middle school chemistry teachers in Yan'an City.By using the Delphi method to investigate the understanding of Yan'an middle school chemistry teachers on the core literacy of chemistry and to explore the PCK mastery of middle school chemistry teachers at different stages,it serves to deepen the Yan'an middle school chemistry teachers5 own knowledge and learning of PCK while help to promote the improvement of the teaching level and professional development of chemistry teachers in Yan'an middle schools.At the end of the paper,the relevant suggestions made based on the investigation of the chemistry PCK study of middle school chemistry teachers in Yan'an City on the core literacy of the chemistry subject will improve the overall building level of the middle school chemistiy teachers of Yan'an City.

Association between Teacher Candidates'Competency and First-Year Employment in Physical Education:A Comparison Study

Physical education teacher education(PETE)programs prepare teacher candidates to be competent and employed in P-12 school settings.This study examined the relationship between competency and first-year job obtainment in physical education(PE).Participants included 111 teacher candidates from two schools.Participants'competency in content knowledge in Kinesiology and sub-disciplines(CKKH),content knowledge in sport and skill proficiency(CKSP),pedagogical content knowledge(PCK),and first-year job obtainment in PE were collected.Descriptive statistics,independent-samples t tests,and multiple logistic regressions were used to analyze the data.The overall sample showed participants were most competent in PCK,followed by CKSP and CKKH.Female participants were more competent in PCK than their male counterparts,and those at School A performed better in CKSP and PCK than their peers at School B.As a sample,more than half of the participants(55.9%)obtained PE jobs.There was a significance between the overall sample and female participants'competency in CKKH and their first-year employment in PE.This study was limited by sample size,variances in courses between the two schools,and by the defined timeline to clarify first-year PE employment.Implications regarding the importance of CKKH and first-year employment were discussed.

The Role of Teacher Professional Development in Improving Teaching Quality and Student Learning Outcomes

This study investigates the impact of Teacher Professional Development(TPD)on teaching quality and student learning outcomes.Utilizing a mixed-methods approach,the research draws on quantitative data from standardized test scores and qualitative insights from teacher interviews and classroom observations.The findings indicate a strong positive correlation between TPD,as measured by self-assessment and peer evaluation,and improvements in teaching practices.These enhancements in teaching quality are further shown to have a significant impact on student learning outcomes,including academic achievement,critical thinking,and engagement.The study also presents case studies that highlight the transformative potential of TPD in various educational contexts.Limitations include the generalizability of the sample and the correlational nature of the study design.The research concludes with policy implications,emphasizing the need for increased investment in TPD,customization of TPD programs,and the promotion of a collaborative culture within schools.Future research directions are suggested to further explore the long-term effects of TPD and the most effective models for professional development.

DEVELOPING OF A KNOWLEDGE BASE FOR THE TEACHING PROFESSION

This paper looks at the key issues and challenges facing TEFL teachers in China with respect to prospective teacher preparation and professional development. Drawing upon earlier research on conceptual frameworks, it examines the knowledge base of pre-service teachers through research into the curriculums in TEFL education across diploma, undergraduate and postgraduate levels. A comparative study of the curriculum structures in the education of TEFL teachers reveals a number of key areas of concern: the main hindrance to the development of a stronger knowledge base of pre-service teachers lies in the serious shortage of pedagogical content knowledge, fundamental pedagogical knowledge that are currently available, as well as with the overall inadequacy of practicum hours. It strongly argues for the breadth versus depth in course design and calls for the imperative to reconceptualize the knowledge base of pre-service teachers.

UNDERSTANDING PCK:ITS BACKGROUND,COMPONENTS AND MODELS——A COMPREHENSIVE REVIEW ON PCK IN THE PAST TWO DECADES

The study of Pedagogical Content Knowledge(PCK),has been closely connected with three research paradigms(teacher behaviours,teacher thinking and teacher knowledge) over past decades.This paper first reviews several diagrams of PCK's components and various models proposed by Shulman(1986,1987),Grossman(1990,1995),Turner-Bisset(1999,2001).Then it conceptualizes a framework of six-component PCK on the basis of analytical discussion being conducted in the study.Since PCK reflects an integration of several fundamental elements of teacher knowledge held by expert teachers,it should serve as one of the knowledge bases for developing foreign language teacher education programmes.