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Research Progress of Detection Methods for Microplastics
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作者 Peng WAN Zhen ZHAO +3 位作者 Guoyan WEN Yunshuang FU Cuizhi LI Xiaoli WU 《Asian Agricultural Research》 2024年第3期29-32,共4页
Microplastics are plastic particles or fibers with a diameter of less than 5 mm,and they widely exist in the environment and pose potential risks to the ecosystem and human health.Microplastics detection can provide b... Microplastics are plastic particles or fibers with a diameter of less than 5 mm,and they widely exist in the environment and pose potential risks to the ecosystem and human health.Microplastics detection can provide basic data for formulating effective environmental protection strategies.In this paper,the physical,chemical and biological detection methods of microplastics are reviewed,and the advantages and disadvantages of different methods are analyzed.The problems and challenges encountered in microplastics detection are analyzed,and the future research is discussed. 展开更多
关键词 Microplastics DETECTION method research PROGRESS
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Research and Practice of the Blended Teaching Model of BOPPPS Teaching Method Under the Background of Digital Education: Taking Operations Research Course as an Example
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作者 Yan Wu 《Journal of Contemporary Educational Research》 2024年第6期155-160,共6页
The rapid development of digital education provides new opportunities and challenges for teaching model innovation.This study aims to explore the application of the BOPPPS(Bridge-in,Objective,Pre-assessment,Participat... The rapid development of digital education provides new opportunities and challenges for teaching model innovation.This study aims to explore the application of the BOPPPS(Bridge-in,Objective,Pre-assessment,Participatory learning,Post-assessment,Summary)teaching method in the development of a blended teaching model for the Operations Research course under the background of digital education.In response to the characteristics of the course and the needs of the student group,the teaching design is reconstructed with a student-centered approach,increasing practical teaching links,improving the assessment and evaluation system,and effectively implementing it in conjunction with digital educational technology.This teaching model has shown significant effectiveness in the context of digital education,providing valuable experience and insights for the innovation of the Operations Research course. 展开更多
关键词 Digital education BOPPPS teaching method Blended teaching model Operations research
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Research and Application of Bedside Rhetorical Teaching Method in Teaching Nursing Interns
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作者 Rui Cao 《Journal of Contemporary Educational Research》 2024年第4期226-229,共4页
Objective:To observe and analyze the application of the bedside rhetorical teaching method in teaching nursing interns.Methods:A total of 64 nursing interns in the gastroenterology department of our hospital from July... Objective:To observe and analyze the application of the bedside rhetorical teaching method in teaching nursing interns.Methods:A total of 64 nursing interns in the gastroenterology department of our hospital from July 2022 to May 2023 were randomly divided into two groups,32 cases in the control group and 32 cases in the intervention group.The control group was given conventional teaching methods,and the intervention group was given the bedside rhetorical teaching method on the basis of the conventional teaching.The differences in the methods of teaching between the two groups were compared after the end of the internship,and there was a statistically significant difference with P<0.05.Results:The scores of the interns in the intervention group were significantly better than those of the control group in theoretical knowledge,communication skills,and case analysis items(P<0.05).Conclusion:The bedside rhetorical teaching method transforms classroom education into bedside teaching,which enables the interns to apply the theoretical knowledge to clinical practice,and has a higher improvement in the three aspects of disease knowledge,communication skills,and case analysis,cultivates the interns’comprehensive clinical skills,and lays a good foundation for the future entry into the nursing field. 展开更多
关键词 Bedside rhetorical teaching method Nursing interns teaching Application research
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Discussion on Professor Ba Jigemude's Research Methods of the History of Mongolian Medicine
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作者 Aruna Alima Baolong 《Medicinal Plant》 CAS 2023年第1期96-99,共4页
The research methods of the history of Mongolian medicine refer to the general and special methods used in the understanding and research of the history of Mongolian medicine,as well as the methods of expression and c... The research methods of the history of Mongolian medicine refer to the general and special methods used in the understanding and research of the history of Mongolian medicine,as well as the methods of expression and compilation of the research achievements of the history of Mongolian medicine.There are not only analysis and generalization,abstractness and concreteness,deduction and induction,historical and logical methods,but also traditional philology methods such as textual research,exegesis and collation,as well as new methods such as field investigation method,empirical method,measurement method,comparison method,and oral account method.In the actual research process,a variety of methods are often used comprehensively.This paper mainly discusses the methods used by Professor Ba Jigemude in the study of the history of Mongolian medicine,and uses specific cases to analyze and summarize the formation and development of the history of ancient traditional medicine. 展开更多
关键词 Mongolian medicine research methods of medical history Ba Jigemude
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Synoptic review on existing and potential sources for bias in dental research methodology with methods on their prevention and remedies
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作者 Amit Arvind Agrawal Nilima Prakash +3 位作者 Mohammad Almagbol Mohammed Alobaid Abdullah Alqarni Hammam Altamni 《World Journal of Methodology》 2023年第5期426-438,共13页
The results of years of dental study serve as the foundation for the practise of medicine and,for that matter,dentistry.Doctors may have their own preferences for techniques and materials,but whether directly or indir... The results of years of dental study serve as the foundation for the practise of medicine and,for that matter,dentistry.Doctors may have their own preferences for techniques and materials,but whether directly or indirectly,their decisions are influenced by systematic reviews and meta-analyses.However,due to poorly conducted or presented research,this very basic foundation may not be reliable.Bias in research is one of several factors that might make study results or research itself unreliable.Bias can be introduced into research at many stages,deliberately or unknowingly.Bias can appear at any point during the research process,even before the study itself begins.There are many biases in research,but some of them are more relevant to dentistry research than others.Because it is said that“eyes see what the mind knows”,it is essential to have a complete understanding of the different types of bias,how and when they get entrenched,and what steps may be taken to prevent or lessen them if they do occur.This comprehensive summary of bias in dentistry research is provided by this synoptic review.The goal is to identify gaps and measures that have been taken-or that should have been taken-by providing both descriptive and evaluative summaries,as well as examples from the literature,when needed. 展开更多
关键词 Dental research Bias(epidemiology) research methodology research design Epidemiologic methods
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Research Progress of High Entropy Ceramic Materials
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作者 Song WU Shikai LIU +5 位作者 Jialin WANG Bibo HAN Shaoyi SHEN Zhigang YU Zhaobo ZHANG Xinhua ZHENG 《Research and Application of Materials Science》 2024年第1期16-22,共7页
High-entropy materials(HEMs)have better mechanical,thermal,and electrical properties than traditional materials due to their special"high entropy effect".They can also adjust the performance of high entropy ... High-entropy materials(HEMs)have better mechanical,thermal,and electrical properties than traditional materials due to their special"high entropy effect".They can also adjust the performance of high entropy ceramics by adjusting the proportion of raw materials,and have broad application prospects in many fields.This article provides a review of the high entropy effect,preparation methods,and main applications of high entropy ceramic materials,especially exploring relevant research on high entropy perovskite ceramics.It is expected to provide reference for the promotion of scientific research and the development of further large-scale applications of high-entropy ceramic materials. 展开更多
关键词 High-entropy ceramic materials high entropy effect preparation method perovskite structure research prog
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Research Progress and Identification Method of Apple Stress Resistance
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作者 王贵平 王金政 +2 位作者 薛晓敏 路超 聂佩显 《Agricultural Science & Technology》 CAS 2013年第10期1413-1416,共4页
In the research, changes of apple chemistry, and molecule, under stresses, are n terms of morphology, physiology, bio- illustrated and research and identifica- tion methods of apple resistance are explored involving ... In the research, changes of apple chemistry, and molecule, under stresses, are n terms of morphology, physiology, bio- illustrated and research and identifica- tion methods of apple resistance are explored involving drought-resistance, flood-re- sistance, salt-stress resistance, cold-hardiness and heat-resistance. In addition prospects of apple resistance research are proposed, as well. 展开更多
关键词 APPLE Adverse stress Stress resistance research progress Identifica- tion method
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Research Progress in Occupational Health Risk Assessment Methods in China 被引量:23
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作者 ZHOU Li Fang TIAN Fang +3 位作者 ZOU Hua YUAN Wei Ming HAO Mo ZHANG Mei Bian 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2017年第8期616-622,共7页
Traditional occupational disease control and prevention has remained prevalent in China over recent decades. There are appropriately 30,000 new case reports of occupational diseases annually. Although China has alread... Traditional occupational disease control and prevention has remained prevalent in China over recent decades. There are appropriately 30,000 new case reports of occupational diseases annually. Although China has already established a series of occupational disease prevention programs, occupational health risk assessment (OHRA) strategies continue to be a limitation. 展开更多
关键词 HR research Progress in Occupational Health Risk Assessment methods in China
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Improved edge lightweight YOLOv4 and its application in on-site power system work 被引量:5
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作者 Kexin Li Liang Qin +3 位作者 Qiang Li Feng Zhao Zhongping Xu Kaipei Liu 《Global Energy Interconnection》 EI CAS CSCD 2022年第2期168-180,共13页
A“cloud-edge-end”collaborative system architecture is adopted for real-time security management of power system on-site work,and mobile edge computing equipment utilizes lightweight intelligent recognition algorithm... A“cloud-edge-end”collaborative system architecture is adopted for real-time security management of power system on-site work,and mobile edge computing equipment utilizes lightweight intelligent recognition algorithms for on-site risk assessment and alert.Owing to its lightweight and fast speed,YOLOv4-Tiny is often deployed on edge computing equipment for real-time video stream detection;however,its accuracy is relatively low.This study proposes an improved YOLOv4-Tiny algorithm based on attention mechanism and optimized training methods,achieving higher accuracy without compromising the speed.Specifically,a convolution block attention module branch is added to the backbone network to enhance the feature extraction capability and an efficient channel attention mechanism is added in the neck network to improve feature utilization.Moreover,three optimized training methods:transfer learning,mosaic data augmentation,and label smoothing are used to improve the training effect of this improved algorithm.Finally,an edge computing equipment experimental platform equipped with an NVIDIA Jetson Xavier NX chip is established and the newly developed algorithm is tested on it.According to the results,the speed of the improved YOLOv4-Tiny algorithm in detecting on-site dress code compliance datasets is 17.25 FPS,and the mean average precision(mAP)is increased from 70.89%to 85.03%. 展开更多
关键词 on-site power system work YOLOv4-Tiny Convolution block attention mechanism Efficient channel attention Optimized training methods.
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Effective point kinetic parameters calculation in Tehran research reactor using deterministic and probabilistic methods 被引量:1
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作者 M.Kheradmand Saadi A.Abbaspour 《Nuclear Science and Techniques》 SCIE CAS CSCD 2017年第12期182-192,共11页
The exact calculation of point kinetic parameters is very important in nuclear reactor safety assessment, and most sophisticated safety codes such as RELAP5, PARCS,DYN3D, and PARET are using these parameters in their ... The exact calculation of point kinetic parameters is very important in nuclear reactor safety assessment, and most sophisticated safety codes such as RELAP5, PARCS,DYN3D, and PARET are using these parameters in their dynamic models. These parameters include effective delayed neutron fractions as well as mean generation time.These parameters are adjoint-weighted, and adjoint flux is employed as a weighting function in their evaluation.Adjoint flux calculation is an easy task for most of deterministic codes, but its evaluation is cumbersome for Monte Carlo codes. However, in recent years, some sophisticated techniques have been proposed for Monte Carlo-based point kinetic parameters calculation without any need of adjoint flux. The most straightforward scheme is known as the ‘‘prompt method'' and has been used widely in literature. The main objective of this article is dedicated to point kinetic parameters calculation in Tehran research reactor(TRR) using deterministic as well as probabilistic techniques. WIMS-D5B and CITATION codes have been used in deterministic calculation of forward and adjoint fluxes in the TRR core. On the other hand, the MCNP Monte Carlo code has been employed in the ‘‘prompt method''scheme for effective delayed neutron fraction evaluation.Deterministic results have been cross-checked with probabilistic ones and validated with SAR and experimental data. In comparison with experimental results, the relativedifferences of deterministic as well as probabilistic methods are 7.6 and 3.2%, respectively. These quantities are10.7 and 6.4%, respectively, in comparison with SAR report. 展开更多
关键词 POINT kinetic parameters TEHRAN research reactor ADJOINT flux Prompt method DETERMINISTIC method Probabilistic method
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Plant Root Research Methods and Trends 被引量:2
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作者 张博文 《Agricultural Science & Technology》 CAS 2017年第12期2295-2298,2302,共5页
The root system is an important organ that plants absorb nutrients from the soil, and can synthesize the vital substances necessary for the plant. However, the study on root system is burdened with great challenges du... The root system is an important organ that plants absorb nutrients from the soil, and can synthesize the vital substances necessary for the plant. However, the study on root system is burdened with great challenges due to its underground roots. In order to further explore the research methods and techniques of plant roots, the research mainly reviewed the research methods of root system, and summarized the methods of conventional root research, such as digging method, core drilling method, container method and isotope method. The progress of CT scan method, ground penetrating radar, special environmental culture method, nucle- ar magnetic resonance method and CCD three-dimensional imaging method were reviewed. Prospects for plant root research were made according to the trends of root research methods usincl hiqh-end technolo.qy at home and abroad. 展开更多
关键词 Root system research methods In situ observation 3u reconstruction research trends
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Delphi methodology in healthcare research:How to decide its appropriateness 被引量:33
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作者 Prashant Nasa Ravi Jain Deven Juneja 《World Journal of Methodology》 2021年第4期116-129,共14页
The Delphi technique is a systematic process of forecasting using the collective opinion of panel members.The structured method of developing consensus among panel members using Delphi methodology has gained acceptanc... The Delphi technique is a systematic process of forecasting using the collective opinion of panel members.The structured method of developing consensus among panel members using Delphi methodology has gained acceptance in diverse fields of medicine.The Delphi methods assumed a pivotal role in the last few decades to develop best practice guidance using collective intelligence where research is limited,ethically/logistically difficult or evidence is conflicting.However,the attempts to assess the quality standard of Delphi studies have reported significant variance,and details of the process followed are usually unclear.We recommend systematic quality tools for evaluation of Delphi methodology;identification of problem area of research,selection of panel,anonymity of panelists,controlled feedback,iterative Delphi rounds,consensus criteria,analysis of consensus,closing criteria,and stability of the results.Based on these nine qualitative evaluation points,we assessed the quality of Delphi studies in the medical field related to coronavirus disease 2019.There was inconsistency in reporting vital elements of Delphi methods such as identification of panel members,defining consensus,closing criteria for rounds,and presenting the results.We propose our evaluation points for researchers,medical journal editorial boards,and reviewers to evaluate the quality of the Delphi methods in healthcare research. 展开更多
关键词 Delphi studies Quality tools for methodology research methods Delphi technique CONSENSUS Expert panel Coronavirus disease 2019 SARS-CoV-2
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Interview-One of the Key Methods in Social Research
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作者 何亚平 方伟 邱银香 《海外英语》 2011年第8X期387-389,共3页
Interviewing is one of the most common and most powerful research methods in sociology. To provide an overview of interviewing in social research, the preliminaries and some tactics applied in interviewing are illustr... Interviewing is one of the most common and most powerful research methods in sociology. To provide an overview of interviewing in social research, the preliminaries and some tactics applied in interviewing are illustrated firstly. Secondly, various forms of interviewing employed in social research are analyzed specifically. Finally, the issues of interviewing are critically examined. 展开更多
关键词 INTERVIEW research method TACTICS FORMS ISSUES
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On Analysis of English Language Education in China from the Research Questions and Research Methods
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作者 王珊珊 赵秦岭 雷慧娟 《海外英语》 2011年第8X期155-156,共2页
The present paper first reviewed the major concepts and practices involves in research. A small study was conducted to survey on the prevailing research questions and methods in ELT studies in China, showing a major p... The present paper first reviewed the major concepts and practices involves in research. A small study was conducted to survey on the prevailing research questions and methods in ELT studies in China, showing a major paradigm shift from qualitative studies to quantitative research and mixed methods, with little critical research identified. 展开更多
关键词 research methodS ELT STUDIES
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Quantitative comparison of cranial approaches in the anatomy laboratory: A neuronavigation based research method 被引量:1
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作者 Francesco Doglietto Jimmy Qiu +7 位作者 Mayoorendra Ravichandiran Ivan Radovanovic Francesco Belotti Anne Agur Gelareh Zadeh Marco Maria Fontanella Walter Kucharczyk Fred Gentili 《World Journal of Methodology》 2017年第4期139-147,共9页
AIMTo describe the development and validation of a novel neuronavigation-based method, which allows the quan-tification of the anatomical features that define anapproach, as well as real-time visualization of the surg... AIMTo describe the development and validation of a novel neuronavigation-based method, which allows the quan-tification of the anatomical features that define anapproach, as well as real-time visualization of the surgicapyramid. METHODSThe method was initially developed with commercially-available hardware for coordinate collection (a digitizerand a frameless navigation system) and software forvolume rendering; dedicated neuronavigation software (ApproachViewer, part of GTx-UHN) was then developed. The accuracy of measurements and the possibility of volumetric rendering of surgical approaches simulated in a phantom were compared among three different methods and commercially-available radiological software. In the anatomy laboratory, ApproachViewer was applied to the comparative quantitative analysis of multiple neurosurgical approaches and was used by many surgeons who were untrained for the research method.RESULTSThe accuracy of ApproachViewer is comparable to com-mercially-available radiological software. In the anatomy laboratory, the method appears versatile. The system can be easily used after brief training. ApproachViewer allows for real-time evaluation and comparison of surgical approaches, as well as post-dissection analyses of collected data. The accuracy of the method depends on the navigation registration: with a 1-2 mm registration error, it is adequate for evaluation and comparison of most neurosurgical approaches.CONCLUSIONThis new research method and software allows semi-automated visualization, quantifcation, and comparison of neurosurgical approaches in the anatomy laboratory. 展开更多
关键词 Anatomical study COMPARISON Neurosurgical approach Quantifcation research method 3D rendering
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A Review of Research Directions and Research Methods of Farmland Weeds 被引量:3
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作者 Shujuan Li Guoqin Huang 《NASS Journal of Agricultural Sciences》 2021年第2期58-62,共5页
Farmland weeds are an important part of farmland ecosystems.Research on farmland weeds is one of the major research fields in agricultural ecology.It is of great significance for achieving high yield,high quality and ... Farmland weeds are an important part of farmland ecosystems.Research on farmland weeds is one of the major research fields in agricultural ecology.It is of great significance for achieving high yield,high quality and high efficiency in agriculture.In recent years,research on farmland weeds has focused on investigation of weed communities,research on weed seed banks,and research on weed control.These three research directions complement each other.Among them,the investigation work of weed communities and the research of weed seed banks are helpful for us to grasp the occurrence of farmland weeds more accurately and provide references for the control of farmland weeds.This article summarizes the research directions of farmland weeds in recent years(weed community investigation,weed seed bank,weed control)and the research methods used,provide reference value for the follow-up research work of farmland weeds,and provide theoretical support for promoting the development of rural ecological industry and building beautiful villages. 展开更多
关键词 WEEDS AGRICULTURE research directions research methods
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Telephone Interview-One of the Key Research Methods in Education
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作者 何亚平 《海外英语》 2011年第9X期183-185,共3页
Telephone interviewing is a crucial but not well-documented qualitative research method in sociology.Such aspects as how to conduct a telephone interview and by whom such a method is best used,are illustrated specific... Telephone interviewing is a crucial but not well-documented qualitative research method in sociology.Such aspects as how to conduct a telephone interview and by whom such a method is best used,are illustrated specifically.More importantly,the advantages and disadvantages of telephone interviews are critically exploited.As a relatively cheap,flexible and reliable means of gathering data,telephone interview deserves more attention.Moreover,due to such obstacles as sampling,establishing rapport and recognizing the limitations of data generated,it is best to use telephone interviewing for educational research in conjunction with other data collection methods. 展开更多
关键词 TELEPHONE INTERVIEW qualitative research method advantages disadvantages data COLLECTION
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Recent progress in research and design concepts for the characterization,testing,and photocatalysts for nitrogen reduction reaction 被引量:3
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作者 Benteng Sun Shucao Lu +2 位作者 Yeye Qian Xiaoli Zhang Jian Tian 《Carbon Energy》 SCIE CSCD 2023年第3期19-74,共56页
The reduction of molecular nitrogen(N_(2))to ammonia(NH_(3))under mild conditions is one of the most promising studies in the energy field due to the important role of NH_(3)in modern industry,production,and life.The ... The reduction of molecular nitrogen(N_(2))to ammonia(NH_(3))under mild conditions is one of the most promising studies in the energy field due to the important role of NH_(3)in modern industry,production,and life.The photocatalytic reduction of N_(2)is expected to achieve clean and sustainable NH_(3)production by using clean solar energy.To date,the new photocatalysts for photocatalytic reduction of N_(2)to NH_(3)at room temperature and atmospheric pressure have not been fully developed.The major challenge is to achieve high light-absorption efficiency,conversion efficiency,and stability of photocatalysts.Herein,the methods for measuring produced NH_(3)are compared,and the problems related to possible NH_(3)pollution in photocatalytic systems are mentioned to provide accurate ideas for measuring photocatalytic efficiency.The recent progress of nitrogen reduction reaction(NRR)photocatalysts at ambient temperature and pressure is summarized by introducing charge transfer,migration,and separation in photocatalytic NRR,which provides a guidance for the selection of future photocatalyst.More importantly,we introduce the latest research strategies of photocatalysts in detail,which can guide the preparation and design of photocatalysts with high NRR activity. 展开更多
关键词 nitrogen reduction reaction PHOTOCATALYSTS produced NH 3 measuring methods reaction mechanism research strategy
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The theory and method research on the double evaluation of land and space:A survey 被引量:1
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作者 WANG You-xiao LU Ru-cheng 《Ecological Economy》 2020年第4期307-316,共10页
By reviewing the theories and methods of resource and environmental carrying capacity evaluation and suitability evaluation of land and space development,it provides theoretical and technical support for rational layo... By reviewing the theories and methods of resource and environmental carrying capacity evaluation and suitability evaluation of land and space development,it provides theoretical and technical support for rational layout and optimization of land and space development pattern.From the aspects of resource carrying capacity,environmental carrying capacity,the importance of ecological protection,the suitability of agricultural production,and the suitability of urban construction,we sort out domestic and foreign documents.The evaluation of resource carrying capacity has changed from single-factor evaluation to multi-factor comprehensive evaluation.At present,the optimization of land use pattern based on the“three-generation”space is still under exploration,it is not enough to systematize and summarize the thought of optimizing the spatial pattern of the national territory.The theoretical framework,model,method and index of“dual evaluation”of territorial space need to be improved continuously,it also needs the scientific analysis and cognition from the natural direction to the human location direction and the spatial equilibrium state as the new driving force. 展开更多
关键词 resource and environmental carrying capacity suitability of land and space development EVALUATION theory and method research progress
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Construction of clinical research nurse training program based on position competence 被引量:2
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作者 Jie Sun Wen-Chuan Shan +4 位作者 Jun-Mei Liu Qin-Qin Zhang Yi Ye Shu-Ting Huang Keng Zhong 《World Journal of Clinical Cases》 SCIE 2023年第30期7363-7371,共9页
BACKGROUND As one of the most important members in clinical trials,the number of clinical research nurses(CRN)can't keep up with the growth of experimental projects,so it is urgent to build clinical research train... BACKGROUND As one of the most important members in clinical trials,the number of clinical research nurses(CRN)can't keep up with the growth of experimental projects,so it is urgent to build clinical research training and strengthen the background knowledge of nurses.AIM To construct CRN training program based on position competence,accelerate the construction of CRN talent pool,and provide scientific guidance significance for CRN training.METHODS Based on the position competence model,combined with literature research and qualitative interview results,the first draft was prepared of the CRN training program.Two rounds of correspondence with 16 experts were conducted using the Delphi method to determine the training program.RESULTS The effective recovery rate of the expert correspondence questionnaire was 100%and the authority coefficients of the 2 rounds of experts were 0.826 and 0.895.Finally,4 first-level indicators and determine 15 s-level indicators of training objectives.The training program included 4 first-level indicators,training requirements,content,methods,assessment and evaluation,15 s-level indicators,and 74 third-level indicators.CONCLUSION The CRN training program based on position competence is scientific and extendable,providing a basis for participation in CRN training. 展开更多
关键词 research nurses Position competence Training program Delphi method
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