PDOL-Based Solid Electrolyte Toward Practical Application:Opportunities and Challenges

Polymer solid-state lithium batteries(SSLB)are regarded as a promising energy storage technology to meet growing demand due to their high energy density and safety.Ion conductivity,interface stability and battery assembly process are still the main challenges to hurdle the commercialization of SSLB.As the main component of SSLB,poly(1,3-dioxolane)(PDOL)-based solid polymer electrolytes polymerized in-situ are becoming a promising candidate solid elec-trolyte,for their high ion conductivity at room temperature,good battery elec-trochemical performances,and simple assembly process.This review analyzes opportunities and challenges of PDOL electrolytes toward practical application for polymer SSLB.The focuses include exploring the polymerization mechanism of DOL,the performance of PDOL composite electrolytes,and the application of PDOL.Furthermore,we provide a perspective on future research directions that need to be emphasized for commercialization of PDOL-based electrolytes in SSLB.The exploration of these schemes facilitates a comprehensive and profound understanding of PDOL-based polymer electrolyte and provides new research ideas to boost them toward practical application in solid-state batteries.

Application of Flipped Classroom Teaching Model Based on Micro-Course in Practical Training Teaching of Contact Lens Fitting Technology

Objective:This paper aims to study the application of flipped classroom teaching model based on micro-course in the practical training teaching of contact lens fitting technology.Methods:From September 21 to July 23,120 students majoring in ophthalmology and optometry were selected and randomly divided into groups.The control group adopted the traditional teaching mode,and the study group adopted the flipped classroom teaching mode based on micro-course.Teaching scores and the skills,observation and judgment,adaptability,and communication skills were compared between the groups.Results:Statistical comparison of teaching scores under different management methods showed that the clinical thinking score and practice work quality in the study group were higher than those of the control group,and the effect of the study group was better(P<0.05).The overall scores of skills,observation and judgment,adaptability,and communication skills of the study group were better than those in the control group,and the comprehensive ability scores in the two groups were significantly different(P<0.05).Conclusion:In practical training teaching of contact lens fitting technology,the application of flipped classroom teaching based on micro-course can improve the skill scores of personnel,and the overall effect is good.This can lay the foundation for advanced ophthalmology and optometry talents with profound theoretical knowledge and professional skills.

Modeling of Microstructure Evolution and Mechanical Properties of Steel Plates Produced by Thermo-Mechanical Control Process and Its On-line Application

An integrated metallurgical model was developed to predict microstructure evolution and mechanical properties of low-carbon steel plates produced by TMCP. The metallurgical phenomena occurring during TMCP and mechanical properties were predicted for different process parameters. In the later passes full recrystallization becomes difficult to occur and higher residual strain remains in austenite after rolling. For the reasonable temperature and cooling schedule, yield strength of 30 mm plain carbon steel plate can reach 310 MPa. The first on-line application of prediction and control of microstructure and properties (PCMP) in the medium plate production was achieved. The predictions of the system are in good agreement with measurements.

Identification and Practical Application of Juniper Trees for Hygiene in Tibetan Culture

[Objectives]To understand the function and ritual uses of juniper wood in Tibetan communities.[Methods]Detailed surveys were carried out amongst students of the School of Nationalities at Qinghai Normal University,in order to analyze the practical application and examine the variety of viewpoints concerning functions and importance of juniper wood in Tibetan culture.[Results]193 out of 200 survey respondents completed and returned valid survey questionnaires.Among the responses,slightly more than 95%(185/193=95.8%)of the total number of informants stated that the primary function of juniper wood was its use as an incense,burned as part of religious ritual or home purification.73%(142/193=73.58%)of informants said that juniper wood also represents a kind of sacred wood or prayer-wood(tib.lab-tse).An equal number of respondents also shared about the use of juniper in the making of prayer-beads.About 62%(121/193=62.6%)responded that juniper is used to make prayer-flag poles.About 45%said that juniper wood is understood as a sacred plant and thus"marked"with sheep wool or silk,and therefore protected from other human interaction by such markings.Additionally,49%(96/193=49.7%)of the informants indicated that juniper wood is also used for medicinal incense.Finally,about 34%(67/193=34.7%)noted juniper is also used for medicinal bath.[Conclusions]The survey responses demonstrate that the function and importance of juniper wood permeate several aspects of Tibetan belief and culture.

Application of Project-Based Teaching in Practical Teaching of Manual Accounting Simulation

In this paper, the author explained characteristics of project-based teaching in practical training of manual accounting simulation, and clarified significance of project-based teaching in accounting simulation teaching and relevant application researches based on analysis on comprehensive manual accounting simulation. Also, to improve effects of project-based teaching in manual accounting simulation courses, teachers need to pay attention to multiple questions during the application.

Analysis on the Practical Application of Multiple Incentive Mechanism in Educational Management

In the new era,China’s education industry was ushered in a high-quality development stage.On the one hand,it is necessary to set a goal of education management on the all-round development of students.On the other hand,we should innovate some practical application schemes of diversified incentive mechanism consistent with the needs of educational management.Taking this as the starting point,this paper summarizes the connotation of incentive mechanism and diversified incentive mechanism,and analyzes the practical problems of single incentive standard,issues on incentive timeliness,and reduced participation of incentive objects at the current stage.On this basis,this paper puts forward some corresponding measures from three angles:opening up thinking,updating in time and emphasizing the target.

Practical evaluation of prelithiation strategies for next-generation lithium-ion batteries

With the increasing market demand for high-performance lithium-ion batteries with high-capacity electrode materials,reducing the irreversible capacity loss in the initial cycle and compensating for the active lithium loss during the cycling process are critical challenges.In recent years,various prelithiation strategies have been developed to overcome these issues.Since these approaches are carried out under a wide range of conditions,it is essential to evaluate their suitability for large-scale commercial applications.In this review,these strategies are categorized based on different battery assembling stages that they are implemented in,including active material synthesis,the slurry mixing process,electrode pretreatment,and battery fabrication.Furthermore,their advantages and disadvantages in commercial production are discussed from the perspective of thermodynamics and kinetics.This review aims to provide guidance for the future development of prelithiation strategies toward commercialization,which will potentially promote the practical application of next-generation high-energy-density lithium-ion batteries.

Conclusions in Theory and Practice for Advancing the Applications of Cable-Driven Mechanisms

The theoretical research of cable-driven mechanisms is developed with its broad applications. The first prototype of cable-driven mechanisms is RoboCrane, which was developed by the National Institute of Standards and Technology （NIST）. Then many excellent properties were developed and they have a variety of applications such as aerospace, aircraft and automobile industries [1]. Example application for RoboCrane in the field of aircraft mainte- nance is equipped with a quick-change mechanism to remove the robot arm remotely.

An Analysis of the Application of the Suggestions of Clinical Practice Guideline for Ostomy Care in China:A Cross-Sectional Investigation

Background:Clinical practice guidelines refer to the guidance provided by the expert system to help medical staff and patients decide on appropriate treatments for a specific clinical situation,mainly including guidelines based on expert consensus and evidence-based guidelines.Since there is no research and clinical application of a specific stoma guidance in China.It is of great significance to understand the application status of the recommended guidelines and the influencing factors in promoting the development of stoma care.Purpose:To investigate the application status of recommended clinical practice guidelines for stoma nursing in China,and to analyse the reasons for the knowledge and application of recommendations.Methods:The Questionnaire on the Application of Recommendations in Clinical Practice Guidelines for Ostomy Nursing was adopted.Results:We collected 195 questionnaires and 183 valid questionnaires were available.(1)The average knowledge rate of a total of 31 recommendations was 73.65%.The main reasons for unknown were insufficient dissemination and lack of training.(2)The average application rate of the 31 recommendations was 58.08%.The overall satisfaction rate of people who used them was high.The main reasons for not applying recommendations were complex.Conclusions:Different levels of recommendations awareness and application are different.There is a lack of evidence-based guidelines for clinical practice in ostomy nursing in the field of stoma care in China,which limits the scientific development of stoma care to a certain extent.However,this study provides reference for the future construction of a guidebook adapted to our country’s localization.

Post lithium-sulfur battery era:challenges and opportunities towards practical application

Lithium-sulfur(Li-S)batteries have been regarded as a promising next-generation energy storage system owing to the high theoretical energy density and natural abundance of sulfur.Abundant fundamental researches have pushed the flourishing development on electrochemical behaviors in recent 20 years.It is time to evolve into post-Li-S battery era with the pursuit towards practical application.During the landmark leap,numerous new challenges appear under harsh conditions,such as high sulfur loading,low cathode density,lean electrolyte and limited lithium reservoir.Herein,we summarize the considerable parameters of pouch Li-S cells and review the pioneering studies focused on the cathode structure,conversion kinetics,electrode interphase and battery safety.The interwoven relationship of these key points is concluded and discussed,which provides guidance to future researches aiming to safe and long-lifespan Li-S batteries with high energy density.

Research on Digital Practical Training Teaching Under the Background of“Internet+”:Taking the“Front Office Service”Course as an Example

This article aims to explore the application of digitalization in practical training teaching under the background of“Internet+”by taking the teaching of“Front Office Service”in the hotel management and digital operation major as an example.By using digital teaching methods,tools,and practical training methods,this study analyzes the impact of digital practical training teaching on students’mastery of front office service skills as well as explores the ways to implement digital practical training teaching.The research results show that digital practical training teaching can effectively improve students’learning effects and comprehensive quality,and simultaneously has positive significance for cultivating comprehensive hotel management talents that adapt to the needs of the“Internet+”era.

Exploration and Practice of Ideological and Political Teaching Construction for Biochemistry Course in Agricultural Colleges and Universities

Biochemistry is a fundamental core course in disciplines such as agriculture,forestry,medicine,animal husbandry,veterinary medicine,and food science.By prioritizing"educating people"in the teaching process of this professional course,we can unearth diverse ideological and political elements related to agricultural production practices within the curriculum knowledge system and the forefront of discipline development.Exploring various teaching methods and utilizing diverse teaching tools are effective strategies to achieve ideological and political education that silently influences students in the field of biochemistry.The goal is to nurture students strong ideals and beliefs,fostering a deep connection to the sentiments of"agriculture,rural areas and farmers in a great nation."This approach aims to instill a sense of responsibility towards strengthening agriculture,shaping students into individuals from South China Agricultural University who possess lofty aspirations and the courage to shoulder responsibility in the new era.

The Application and Practice of TBL Method in the Teaching of “Zhuang Medical Prescriptions”

The application of TBL teaching method to"Zhuang Medical Prescriptions"is an actual practice of group cooperative learning mode.Through this method,a more active learning atmosphere can be constructed,and it is also an activity to jointly achieve the teaching goals.From the perspective of the practice of basic teaching,it is a creative teaching strategy.Let students develop the awareness and habit of using team groups for cooperative inquisitive learning,so as to gradually improve students'level of comprehensive application analysis.This paper discusses in detail from the perspective of practical research and building,and compares data under different teaching methods with test results to prove that TBL teaching method is superior to traditional teaching method.

The Application and Practice of MOOC in College English Teaching

MOOC(Massive Open Online Course) is undoubtedly the most popular word in online education in China.It has the characteristics of openness, large-scale, self-organization and sociality. It is successfully used in Internet technology education, open education concept has been recognized by society, social learning has become a main form of learning background, is conducive to building a social learning network, is conducive to the creation and sharing of knowledge, to provide real-time, interactive, on-demand services for users by the system. By discussing the application and practice of MOOC in College English teaching, this paper analyzes the advantages and disadvantages of MOOC in College English teaching.

Total Physical Response and Its Classroom Application --Haiyun TCI Practice Series (2)

Total Physical Response (TPR) is one of the most powerful tools we can use in a language classroom. It is a comprehension-based strategy and built on the coordination of language and physical movements. In TPR, instructors give commands with body movement to students in a target language, students respond with whole-body actions.

Standards and Best Practices Application of Standards for Equipment-Manufacturing Industries Workshop Held in Shanghai

The "Application of Standards for Equipment-Manufacturing Industry Workshop" was held for two days in Shanghai from May 25th to May 26th, 2007. Dozens of delegates from famous enterprises and organizations around the world participated, including those from Shell China Ltd., Leal China, Siemens Ltd. China Corporate, and Assurance of SAI Global and SGS . Nine experts, engaged in standardization, intellectual property, and related fields, gave speeches on "Standards and Best Practices," and many illustrative examples of the application of standards were provided.……

Rock brittleness indices and their applications to different fields of rock engineering:A review

Brittleness is an important parameter controlling the mechanical behavior and failure characteristics of rocks under loading and unloading conditions,such as fracability,cutability,drillability and rockburst proneness.As such,it is of high practical value to correctly evaluate rock brittleness.However,the definition and measurement method of rock brittleness have been very diverse and not yet been standardized.In this paper,the definitions of rock brittleness are firstly reviewed,and several representative definitions of rock brittleness are identified and briefly discussed.The development and role of rock brittleness in different fields of rock engineering are also studied.Eighty brittleness indices publicly available in rock mechanics literature are compiled,and the measurement method,applicability and limitations of some indices are discussed.The results show that(1)the large number of brittleness indices and brittleness definitions is attributed to the different foci on the rock behavior when it breaks;(2)indices developed in one field usually are not directly applicable to other fields;and(3)the term“brittleness”is sometimes misused,and many empirically-obtained brittleness indices,which lack theoretical basis,fail to truly reflect rock brittleness.On the basis of this review,three measurement methods are identified,i.e.(1)elastic deformation before fracture,(2)shape of post-peak stressestrain curves,and(3)methods based on fracture mechanics theory,which have the potential to be further refined and unified to become the standard measurement methods of rock brittleness.It is highly beneficial for the rock mechanics community to develop a robust definition of rock brittleness.This study will undoubtedly provide a comprehensive timely reference for selecting an appropriate brittleness index for their applications,and will also pave the way for the development of a standard definition and measurement method of rock brittleness in the long term.

Current Application of Search Engines and Their Developing Trend

FAN Xiao-wen School of Pharmacy, Shenyang Pharmaceutical University, Shenyang,110016The basic types of current search engines which can help users to perfume laborious information-gathering tasks on Internet is proposed. Basically, the search engines can be classified into index engine, directory engine and agent engine on WWW information service. The key technologies of web mine, automatic classifying of documents and ordering regulation of feedback information are discussed. Finally, the developing trend of search engines is pointed out by analyzing their practical application on World Wide Web.