Discussion on“Dispersion characteristics of clayey soils containing waste rubber particles”[J Rock Mech Geotech Eng 15(2023)3050-3058]

We read with great interest the recent article by Erenson(2023)entitled“Dispersion characteristics of clayey soils containing waste rubber particles”.The author has studied the dispersion characteristics of clayey soils containing different percentages of waste rubber particles(WRPs)by performing several tests(viz.consistency limit,linear shrinkage limit,double hydrometer,crumb test and pinhole test)and scanning electron microscopy(SEM)analysis on five clayey(viz.Na-activated bentonite,refined ball clay,Ukrainian kaolin,Avanos kaolin and Afyon clay)samples containing 0%,5%,10%and 15%WRPs.It should be noted that Erenson(2023)has presented some interesting observations,but there are some serious issues that we want to share through this discussion and request the author of the original paper to address them to avoid their persistence in the scientific literature.

An Investigation on Open-RAN Specifications:Use Cases,Security Threats,Requirements,Discussions

The emergence of various technologies such as terahertz communications,Reconfigurable Intelligent Surfaces(RIS),and AI-powered communication services will burden network operators with rising infrastructure costs.Recently,the Open Radio Access Network(O-RAN)has been introduced as a solution for growing financial and operational burdens in Beyond 5G(B5G)and 6G networks.O-RAN promotes openness and intelligence to overcome the limitations of traditional RANs.By disaggregating conventional Base Band Units(BBUs)into O-RAN Distributed Units(O-DU)and O-RAN Centralized Units(O-CU),O-RAN offers greater flexibility for upgrades and network automation.However,this openness introduces new security challenges compared to traditional RANs.Many existing studies overlook these security requirements of the O-RAN networks.To gain deeper insights into the O-RAN system and security,this paper first provides an overview of the general O-RAN architecture and its diverse use cases relevant to B5G and 6G applications.We then delve into specifications of O-RAN security threats and requirements,aiming to mitigate security vulnerabilities effectively.By providing a comprehensive understanding of O-RAN architecture,use cases,and security considerations,thisworkserves as a valuable resource for future research in O-RAN and its security.

A Discussion on the Issue of Excessive Academic Burden among Middle School Students

At present,the heavy academic workload of middle school students is a common problem,which is still questioned by parents,concerned by the government,and hotly debated by society.This paper summarizes the following eight aspects:the difficult content of subject courses,excessive class hours,heavy homework burden,complicated exams,overwhelming study materials,fierce subject competition,prevalent off-campus tutoring,and poor physical and mental health.Recognizing these problems can help to optimize the education and teaching environment and achieve a sustainable enrollment rate.

Web-based推荐系统中的会话推荐多样性研究

Web-based推荐系统通常用推荐的准确性来衡量推荐算法的优劣,而Web-based推荐系统中用户的浏览行为以会话为单位,因此用户会话期内推荐的多样性是评价Web-based推荐系统推荐质量的一个重要指标.提出会话推荐多样性的概念,提出了一种能够提高会话推荐多样性的融合协同过滤算法,在用户会话期内建立会话推荐列表,有效避免会话推荐树中出现推荐环路,消除会话推荐树中的重复推荐.通过Movielens数据集测试表明,提出的方法可以大幅度提高Web-based推荐系统的会话推荐多样性,同时也提高了推荐准确率.

Discussion on Problem of Fermentation Contamination of Heterotrophic Chlorella

The contamination reasons were analyzed form the viewpoints of strain preparation, air system, medium and equipment sterilization and pipeline configura- tion. Moreover, the contamination-preventing measures were defined. We also sum- marized the characteristics of bacteria that contaminated the fermentation, as well as checking methods and remedial measures.

Discussion on New Rural Appearance Construction Based on Color Planning

With changing rural architectural environment as the focus of new rural construction, the paper had pointed out it was lack of researches on color planning of overall structures in new countryside. On this basis, by making use of relevant softwares, it had conducted color abstraction on current typical rural appearance; analyzed the color of rural nature, artificial environment and cultural environment in accordance with international standard of Natural Color System; and then concluded color context of rural appearance. It proposed that color control could be conducted on rural appearance from macroscopic, medium and microcosmic perspective by taking advantage of color planning in new rural appearance construction, so as to build a new rural color system, create modern new rural appearance reflecting regional characteristic and integrating with the natural environment, preserve artificial color of traditional ancient villages, coordinate colors in villages with architectures of different ages, finally realizing reshaping of Chinese people's spiritual hometown.

A Survey into Teachers＇ Roles in Web-based College English Autonomous Learning

The paper, with the backdrop of web-based autonomous learning put forward by the recent college English teaching reform, aims to explore teachers＇ roles in this learning process in students＇ perception through the means of questionnaires and interviews. It further analyzes the possible reasons why students perceive their teachers＇ roles in such a way, in the hope of providing some implications for web-based college English autonomous learning.

An Exploration of the Interactive Web-based College English Teaching Model

In the light of the theory of constructivism, the interactive web-based college English teaching model is intended to facilitate ＂autonomy＂, ＂inquiry＂ and ＂cooperation＂ in learning English. This paper presents a research in which the interactive web-based college English teaching model intends to reshape the teacher＇s and learner＇s roles in the classroom. Based on the research, an exploration is made --- within the framework of the interactive web-based model --- on the design of ＂teaching model＂ and ＂learning model＂, its application and related potential problems.

Incorporation of Learning Strategies into Web-based Autonomous Listening

The thesis introduces a comparative study of students'autonomous listening practice in a web-based autonomous learning center and the traditional teacher-dominated listening practice in a traditional language lab.The purpose of the study is to find how students'listening strategies differ in these two approaches and thereby to find which one better facilitates students'listening proficiency.

Discussion on Development of Hainan Huanghuali(Dalbergia odorifera T.Chen)

On the morphological characteristics, growth environment and quality, rarity, and wood characteristics and value of Huanghuali, this paper discusses the development ways of Hainan Huanghuali It is suggested that Halnan Huanghuali could be well grown by guiding farmers to make full use of wasteland, slopes, scattered land, roadside and other resources; the landscaping greenbelt of the courtyard area and the residential area could be planned with nature as a main consideration for planting Huanghuali; and landscaping-type Huanghuali planting could make full use of local environment and surrounding local resources, highlighting the personalized landscaping greenbelt, forming good transition between residential area and urban space and creating a natural kindly living environment for the residents, so as to play the best ecological, social and economic benefits.

Research on Application of Metacognitive Strategy in English Listening in the Web-based Self-access Learning Environment

Metacognitive strategies are regarded as advanced strategies in all the learning strategies.This study focuses on the application of metacognitive strategies in English listening in the web-based self-access learning environment(WSLE) and tries to provide some references for those students and teachers in the vocational colleges.

A Review of the Effectiveness of Web-based Course with College English Learners' Autonomous Learning

The paper is a literature review, aiming to examine the effectiveness of web-based college English learning which mainly focuses on learners' autonomous learning. Previous studies indicate that the web-based learning can improve learners' autonomous learning, as well as some problems found in their findings. Therefore, this paper first gives a summary and critique of research studies on the web-based autonomous learning and some factors influencing learners' autonomous learning ability;then, areas that deserve further study are also indicated.

倡导web-based自主学习模式以提高大学生英语听说能力

自主学习已逐渐成为学习模式的主要发展方向,但基于网络的自主学习模式至今未得到普遍应用。本文倡导网络环境下的自主学习模式,以提高大学生英语听说能力。

Web-based英语视听说自主学习效果分析

在大学英语对学生语言能力提出更高要求的形势下,新的大学英语教学模式应以课堂教学与在校园网上运行的英语教学软件相结合的自主学习教学模式为主要发展方向。基于局域网的大学英语视听说自主学习实证研究表明,学生的学习效果主要取决于其态度、能力及所处的环境。

Discussion on Wave Transmission Coefficient Formulae of Submerged Breakwaters

Fifteen formulae of wave transmission coefficient for submerged breakwaters obtained during last 3 decades are presented, compared, and analyzed in this paper. The dimensionless parameters mainly involved in this discussion are the relative submerged depth Re/h, relative wave height Rc/Hi, relative rubble size B/D50, relative breakwater width B√ HiL0 and wave breaker index ξ. It indicates that there exist notable differences among the computed results, which mainly originate from the limited experimental conditions and different analytical methods, even though the major tendency keeps similar. It is necessary to conduct more systematic studies to obtain better understanding about the mechanism of wave transmission over submerged breakwaters.

A Glimpse of Interactional Strategies Used in Group Discussion in the EFL Context

On the basis of literature review,this paper discusses what interactional strategies are in group discussions conducted in the EFL classroom.Two frameworks for interactional strategies are investigated to explore the types of interactional strategies.This aims to shed light upon the analysis of interactional features in face-to-face communication.

Discussion of Meridional Propagation Mechanism of Quasi-40-Day Oscillation

Based on researches made by the author in recent years, discussion is made of the quasi-40-day oscillation (QDO) nature and its characteristic propagation, with emphasis on the Southern Hemisphere mill-latitude quasi-periodic cold air forcing on the tropical atmosphere quasi-40-day oscillation along with its effect upon the Northern Hemisphere summer monsoon. It is proposed that the interaction between, or lateral coupling of, meridional circulation systems may serve as the mechanism of the oscillation propagation in a meridional direction.

Group Discussion to be Introduced to the EFL Classroom

Teacher_centered classroom teaching makes students to be passivereceiversandunabletouseEnglishasaneffectivetool.ThispaperfocusesonusingdiscussioninEFLclassroomandintroducesthepractisingmethodsofeachstepindetail.ThepaperexpectstofindanewandmoreeffectivepatternthroughanalysisandargumentationtomakestudentsmoreskillfulinusingEnglishanddevelopabetterhabitinclassroomteachingactivities.

A Web-based machining process monitoring system for E-manufacturing implementation

Recently, with the rapid growth of information technology, many studies have been performed to implement Web-based manufacturing system. Such technologies are expected to meet the need of many manufacturing industries who want to adopt E-manufacturing system for the construction of globalization, agility, and digitalization to cope with the rapid changing market requirements. In this research, a real-time Web-based machine tool and machining process monitoring system is developed as the first step for implementing E-manufacturing system. In this system, the current variations of the main spindle and feeding motors are measured using hall sensors. And the relationship between the cutting force and the spindle motor RMS (Root Mean Square) current at various spindle rotational speeds is obtained. Thermocouples are used to measure temperature variations of important heat sources of a machine tool. Also, a rule-based expert system is applied in order to decide the machining process and machine tool are in normal conditions. Finally, the effectiveness of the developed system is verified through a series of experiments.

Study on the Effect of Web-Based Real-Time Interactive Intervention Teaching Model on Self-Efficacy of Gestational Diabetes Mellitus Patients

Object: To explore the effect of web-based real-time interactive intervention teaching model on self-efficacy of Gestational Diabetes Mellitus (GDM) patients. Method: Based on the hospital’s antenatal check-up archives from June 2018 to January 2019, patients diagnosed with GDM in the second trimester were randomly divided into the control group (100 cases) and the experimental group (121 cases). Patients in the control group received routine care following the diabetes mellitus one-day outpatient guidance, while patients in the experimental group received social media real-time interactive teaching intervention based on routine care, and accepted a nursing intervention scheme based on knowledge-attitude-practice mode. The knowledge of GDM, self-efficacy and self-management behavior indicators were compared between the two groups. Results: After the intervention, the self-efficacy scores, the blood glucose monitoring times and the blood glucose compliance rates of the experimental group were significantly higher than those of the control group (P < 0.05). The post-intervention GDM knowledge scores of the experimental group were higher than those of the control group, and the difference was not statistically significant (P = 0.072). Conclusion: Web-based real-time interactive intervention teaching model can effectively improve the self-efficacy of GDM patients and promote the formation of healthy behaviors.