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Two-Bubble Class Model for Churn-Turbulent Regime in a Bubble Column Slurry Reactor of Fischer-Tropsch Synthesis 被引量:2
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作者 吕朝晖 赵玉龙 赵亮富 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2001年第1期84-89,共6页
A model for a bubble column slurry reactor is developed based on the experiment of Rhenpreussen Koppers demonstration plant for slurry phase Fischer-Tropsch synthesis reported by Koelble et al. This model is applicabl... A model for a bubble column slurry reactor is developed based on the experiment of Rhenpreussen Koppers demonstration plant for slurry phase Fischer-Tropsch synthesis reported by Koelble et al. This model is applicable to the operation in the churn-turbulent regime and incorporates the information on the bubble size. The axial dispersion model is adopted to describe the flow characteristics of the Fischer-Tropsch slurry reactor. With the model developed, simulations are performed to identify the steady state behavior of a Fischer-Tropsch slurry reactor of commercial size. Predictions of the two-bubble class model is compared with that of the conventional single- bubble class model. The results show that under a variety of conditions, the two-bubble class model gives results different from those for the single-bubble class model. 展开更多
关键词 two-bubble class model Fischer-Tropsch synthesis slurry reactor
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将Flipped Class Model引入高校网球教学的SWOT分析 被引量:3
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作者 张建辉 侯邢晨 《教育理论与实践》 CSSCI 北大核心 2018年第30期61-62,共2页
将Flipped Class Model引入到高校网球课教学,有助于激发学生对高校网球项目课学习的积极性,增强学生网球项目课学习的自主性,加强师生间的交流。运用SWOT态势分析法,将Flipped Class Model引入到高校网球教学,将会促进教师教学能力提... 将Flipped Class Model引入到高校网球课教学,有助于激发学生对高校网球项目课学习的积极性,增强学生网球项目课学习的自主性,加强师生间的交流。运用SWOT态势分析法,将Flipped Class Model引入到高校网球教学,将会促进教师教学能力提高、教学过程中教师和学生角色转换、学生学习习惯改变等。 展开更多
关键词 Flipped class model 高校两球教学 SWOT分析 教师教学能力
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A Model Structured in Classes for the Study of Student Population Evolution
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作者 PEREIRA Edgar ROSA Cecilia SILVA Jacques 《上海大学学报(自然科学版)》 CAS CSCD 北大核心 2014年第2期127-137,共11页
This paper presents an application of a metapopulation model structured in classes for the study of population evolution of a network of schools.The global dynamics are considered in two parts,the local,where the evol... This paper presents an application of a metapopulation model structured in classes for the study of population evolution of a network of schools.The global dynamics are considered in two parts,the local,where the evolution for each grade in a cycle is accounted,and the metapopulation or the movement of students between schools.Simulation of the model is presented. 展开更多
关键词 应用数学 数学分析 数学理论 数学概念
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"Flipped Class Model" Applied to Translation Class
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作者 ZHANG Jie 《Sino-US English Teaching》 2016年第2期142-149,共8页
With the development of computer technology, the way of language teaching has experienced great changes. In the past the methods of language teaching mainly focus on the direct method, the grammar-translation, audio-l... With the development of computer technology, the way of language teaching has experienced great changes. In the past the methods of language teaching mainly focus on the direct method, the grammar-translation, audio-lingual, the structure approach, communicative language teaching, community language learning, task-based language learning, etc. These methods start and develop with the need and application of some theories. Now at the present time the computer is widely used in every field and the Internet is compulsory of daily life. So the ways of teaching language is changing accordingly. This paper is to analyze the new way of language teaching, the flipped class model. The first part is the general introduction of the flipped class model, and the second part is the application of the flipped class model to translation course. 展开更多
关键词 flipped class model new computer technology VIDEOS translation course
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A lattice Bhatnagar-Gross-Krook model for a class of the generalized Burgers equations
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作者 余晓美 施保昌 《Chinese Physics B》 SCIE EI CAS CSCD 2006年第7期1441-1449,共9页
A new lattice Bhatnagar-Gross-Krook (LBGK) model for a class of the generalized Burgers equations is proposed. It is a general LBGK model for nonlinear Burgers equations with source term in arbitrary dimensional spa... A new lattice Bhatnagar-Gross-Krook (LBGK) model for a class of the generalized Burgers equations is proposed. It is a general LBGK model for nonlinear Burgers equations with source term in arbitrary dimensional space. The linear stability of the model is also studied. The model is numerically tested for three problems in different dimensional space, and the numerical results are compared with either analytic solutions or numerical results obtained by other methods. Satisfactory results are obtained by the numerical simulations. 展开更多
关键词 LBGK model a class of generalized Burgers equation stability simulation
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“FlippedClass Model”模式在教学中的运用实践与思考 被引量:2
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作者 宋飞鸿 《武汉船舶职业技术学院学报》 2014年第6期118-121,125,共5页
本文通过"FlippedClass Model"在《现代轿车的新功能》中的实践,论述了"FlippedClass Model"体现教师为主导,学生为主体辩证统一的理念,符合独立性与依赖性相统一的心理发展的实际,适应学生的个别差异,有利于挖掘... 本文通过"FlippedClass Model"在《现代轿车的新功能》中的实践,论述了"FlippedClass Model"体现教师为主导,学生为主体辩证统一的理念,符合独立性与依赖性相统一的心理发展的实际,适应学生的个别差异,有利于挖掘学生的创造潜能,培养学生的创新意识。 展开更多
关键词 翻转课堂 教学模式
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XML Schema Modeling through UML Class Diagram 被引量:1
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作者 LUJing-ping HEYu-lin LIShang-ping 《Computer Aided Drafting,Design and Manufacturing》 2004年第1期7-14,共8页
A three-step XML Schema modeling method is presented, namely first establishing a diagram of conceptual modeling, then transforming it to UML class diagram and finally mapping it to XML Schema. A case study of handlin... A three-step XML Schema modeling method is presented, namely first establishing a diagram of conceptual modeling, then transforming it to UML class diagram and finally mapping it to XML Schema. A case study of handling furniture design data is given to illustrate the detail of conversion process. 展开更多
关键词 INTEROPERABILITY XML Schema diagram conceptual model UML class diagram cooperative design
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Optimizing Movement of Students from Hostels to Lecture Rooms in a Potential World Class University Using Transportation Model
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作者 Michael C. Agarana Aniekeme I. Udoh Amenawon I. Ehigbochie 《Applied Mathematics》 2018年第6期633-646,共14页
Transportation issue is one of the significant zones of utilization of Linear Programming Model. In this paper, transportation model is utilized to decide an ideal answer for the transportation issue in a run of the m... Transportation issue is one of the significant zones of utilization of Linear Programming Model. In this paper, transportation model is utilized to decide an ideal answer for the transportation issue in a run of the mill world class university utilizing Covenant University as a contextual analysis. Covenant University is a potential world class University. The quick development of Covenant University Campus over the most recent fourteen years affects its transportation framework. This paper particularly takes a gander at streamlining the time spent by the students moving from their lodgings to lecture rooms. Google guide was utilized to figure the separation and time between every cause and every goal. North-west corner technique, Least Cost strategy and Vogel’s estimation technique were utilized to decide the underlying fundamental plausible arrangement (initial feasible solution) and MODI strategy was utilized to locate the ideal arrangement (optimal solution). The last outcome demonstrates that the development of understudies from hostel to lecture rooms can be streamlined if the total time spent is decreased. 展开更多
关键词 TRANSPORTATION model World class UNIVERSITY Optimization
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Modeling Crash Risk at Rail-Highway Grade Crossings by Track Class
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作者 Soumya Sharma Srinivas S. Pulugurtha 《Journal of Transportation Technologies》 2019年第3期261-275,共15页
The Federal Railroad Administration (FRA)’s Web Based Accident Prediction System (WBAPS) is used by federal, state and local agencies to get a preliminary idea on safety at a rail-highway grade crossing. It is an int... The Federal Railroad Administration (FRA)’s Web Based Accident Prediction System (WBAPS) is used by federal, state and local agencies to get a preliminary idea on safety at a rail-highway grade crossing. It is an interactive and user-friendly tool used to make funding decisions. WBAPS is almost three decades old and involves a three-step approach making it difficult to interpret the contribution of the variables included in the model. It also does not directly account for regional/local developments and technological advancements pertaining to signals and signs implemented at rail-highway grade crossings. Further, characteristics of a rail-highway grade crossing vary by track class which is not explicitly considered by WBAPS. This research, therefore, examines and develops a method and models to estimate crashes at rail-highway grade crossings by track class using regional/local level data. The method and models developed for each track class as well as considering all track classes together are based on data for the state of North Carolina. Linear, as well as count models based on Poisson and Negative Binomial (NB) distributions, was tested for applicability. Negative binomial models were found to be the best fit for the data used in this research. Models for each track class have better goodness of fit statistics compared to the model considering data for all track classes together. This is primarily because traffic, design, and operational characteristics at rail-highway grade crossings are different for each track class. The findings from statistical models in this research are supported by model validation. 展开更多
关键词 Rail-Highway Grade CROSSING CRASH Risk modelING TRACK class
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A study on service quality evaluation of digital libraries in China based on tetra-class model 被引量:2
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作者 Changping HU Weiwei YAN Yuan HU 《Chinese Journal of Library and Information Science》 2013年第2期14-32,共19页
Purpose: This study intends to evaluate the service quality of academic digital libraries(DLs)in China. By utilizing tetra-class model which concentrates on categorizing services according to their contributions to us... Purpose: This study intends to evaluate the service quality of academic digital libraries(DLs)in China. By utilizing tetra-class model which concentrates on categorizing services according to their contributions to user satisfaction, this paper attempts to visually categorize the specific DL service elements to reveal their present performances, and then further explain the categorizing variations among different groups of users to discover the user preference.Design/methodology/approach: This paper carries out a survey to evaluate user experience on 27 typical DL services summarized from our investigations of representative Chinese university DLs. Based on the five-point Likert-type scale evaluation, the users’ attitudes toward specific service element are divided into negative and positive dimensions. Afterwards,a correspondence analysis is applied to calculate the contributions to satisfaction and dissatisfaction of each service element based on tetra-class model. As a result, the DL service elements of Chinese academic libraries are classified into four categories(i.e. Basic, Secondary,Plus, and Key). Finally, we compared the categorizing variations.Findings: The results show that the DL service elements of Chinese academic libraries are all distributed in Basic and Key services regarding information retrieval and informationorganizing; 80% of the interaction services elements are Plus services, while 50% of the Secondary services are information-providing services. The results also reveal that service categorization is obviously influenced by the users’ education background, especially their disciplines. Furthermore, the users who are older, more highly-educated, or studying in higher reputation universities are more likely to evaluate DL services as either critical or useless.Research limitations: Tetra-class model cannot reveal the interplay among the DL service elements. In addition, the user segmentation in our studies is limited to the sample structure.Practical implications: This empirical study focuses on the evaluation of DL services of academic libraries in China, the analyses of their current performances could provide useful reference for the assessment of other types of Chinese DLs. Moreover, the consideration of user characteristics(gender, age, and education background, etc.) in the DL evaluation would help librarians improve DL services to meet the users’ various needs in teaching and doing scientific research.Originality/value: Different from the frequently-used factor analysis which focuses on the relationship among factors and user satisfaction, this paper tries to use and compare element distributions of different user segments while focusing on various service objectives. Factor analysis shows some flaws as used to measure the element with selected indicators, for it ignores the fact that the indicators which measure the same factor would have different degrees of impacts on user satisfaction. However, the tetra-class model can better visually analyze the performance of each DL service element from its contributions to satisfaction and dissatisfaction, which would help librarians to better understand users’ need and offer DL services more efficiently. 展开更多
关键词 Digital library(DL) Tetra-class model User satisfaction User preference User characteristic Service categorization
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A Survey Research on Agricultural College Undergraduates' Attitudes towards In-class and Out-of-class Activities Based on the Mixed Teaching Model
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作者 Guihua LI 《Asian Agricultural Research》 2018年第7期87-90,共4页
In order to study the effects of in-class and out-of-class activities of college English based on the mixed teaching model on the fostering of students' English learning and application ability,the attitudes of 21... In order to study the effects of in-class and out-of-class activities of college English based on the mixed teaching model on the fostering of students' English learning and application ability,the attitudes of 215 freshmen of Agricultural College,Yanbian University towards inclass and out-of-class activities and their participation and completion of tasks were investigated by a questionnaire. The results show that a series of in-class and out-of-class activities could help improve the students' language competence as well as non-language competence such as learning strategies,emotional attitudes,and cultural awareness. The implementation and effect of school online courses were inferior to classroom teaching,but they provide reference and experience for future mixed teaching. 展开更多
关键词 语言能力 高校 英语 教学管理
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A Comparison of Statistics for Assessing Model Invariance in Latent Class Analysis
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作者 Holmes Finch 《Open Journal of Statistics》 2015年第3期191-210,共20页
Latent class analysis (LCA) is a widely used statistical technique for identifying subgroups in the population based upon multiple indicator variables. It has a number of advantages over other unsupervised grouping pr... Latent class analysis (LCA) is a widely used statistical technique for identifying subgroups in the population based upon multiple indicator variables. It has a number of advantages over other unsupervised grouping procedures such as cluster analysis, including stronger theoretical underpinnings, more clearly defined measures of model fit, and the ability to conduct confirmatory analyses. In addition, it is possible to ascertain whether an LCA solution is equally applicable to multiple known groups, using invariance assessment techniques. This study compared the effectiveness of multiple statistics for detecting group LCA invariance, including a chi-square difference test, a bootstrap likelihood ratio test, and several information indices. Results of the simulation study found that the bootstrap likelihood ratio test was the optimal invariance assessment statistic. In addition to the simulation, LCA group invariance assessment was demonstrated in an application with the Youth Risk Behavior Survey (YRBS). Implications of the simulation results for practice are discussed. 展开更多
关键词 LATENT class ANALYSIS model INVARIANCE Information Indices
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“Flipped Class Model”在《现代机床》中的实践与思考
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作者 宋飞鸿 《广东交通职业技术学院学报》 2017年第2期77-80,共4页
翻转课堂通过对知识传授和知识内化的颠倒安排,改变了传统教学中的师生角色,并对课堂时间的使用进行了重新规划,实现了对传统教学模式的革新。文中尝试将"Flipped Class Model"用于现代机械创新产品分析与设计教学中,并以《... 翻转课堂通过对知识传授和知识内化的颠倒安排,改变了传统教学中的师生角色,并对课堂时间的使用进行了重新规划,实现了对传统教学模式的革新。文中尝试将"Flipped Class Model"用于现代机械创新产品分析与设计教学中,并以《现代机床》为例分析说明,以期为我国的机械课程教学改革提供借鉴。 展开更多
关键词 翻转课堂 教学模式 现代机床
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Accounting for Heterogeneity in Stop Frequency Models of Work Tours Using Latent Class Poisson Models
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作者 Babak Mirzazadeh 《Journal of Transportation Technologies》 2023年第2期243-261,共19页
Stop frequency models, as one of the elements of activity based models, represent an important part of travel behavior. Unobserved heterogeneity across the travelers should be taken into consideration to prevent biase... Stop frequency models, as one of the elements of activity based models, represent an important part of travel behavior. Unobserved heterogeneity across the travelers should be taken into consideration to prevent biasedness and inconsistency in the estimated parameters in the stop frequency models. Additionally, previous studies on the stop frequency have mostly been done in larger metropolitan areas and less attention has been paid to the areas with less population. This study addresses these gaps by using 2012 travel data from a medium sized U.S. urban area using the work tour for the case study. Stop in the work tour were classified into three groups of outbound leg, work based subtour, and inbound leg of the commutes. Latent Class Poisson Regression Models were used to analyze the data. The results indicate the presence of heterogeneity across the commuters. Using latent class models significantly improves the predictive power of the models compared to regular one class Poisson regression models. In contrast to one class Poisson models, gender becomes insignificant in predicting the number of tours when unobserved heterogeneity is accounted for. The commuters are associated with increased stops on their work based subtour when the employment density of service-related occupations increases in their work zone, but employment density of retail employment does not significantly contribute to the stop making likelihood of the commuters. Additionally, an increase in the number of work tours was associated with fewer stops on the inbound leg of the commute. The results of this study suggest the consideration of unobserved heterogeneity in the stop frequency models and help transportation agencies and policy makers make better inferences from such models. 展开更多
关键词 Activity Based model Work Tour Stop Frequency Latent class Poisson Regression model
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“Flipped Class Model”在《现代机床》中的实践与思考
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作者 宋飞鸿 《武汉船舶职业技术学院学报》 2017年第1期97-101,共5页
翻转课堂通过对知识传授和知识内化的颠倒安排,改变了传统教学中的师生角色,并对课堂时间的使用进行了重新规划,实现了对传统教学模式的革新。本文尝试将"Flipped Class Model"用于现代机械创新产品分析与设计教学中,并以《... 翻转课堂通过对知识传授和知识内化的颠倒安排,改变了传统教学中的师生角色,并对课堂时间的使用进行了重新规划,实现了对传统教学模式的革新。本文尝试将"Flipped Class Model"用于现代机械创新产品分析与设计教学中,并以《现代机床》为例分析说明,以期为我国的机械课程教学改革提供借鉴。 展开更多
关键词 翻转课堂 教学模式 现代机床
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Stochastic Model for Multiple Classes and Subclasses Simple Documents Processing 被引量:1
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作者 Pierre Moukeli Mbindzoukou Arsène Roland Moukoukou Marius Massala 《Intelligent Information Management》 2021年第2期124-140,共17页
The issue of document management has been raised for a long time, especially with the appearance of office automation in the 1980s, which led to dematerialization and Electronic Document Management (EDM). In the same ... The issue of document management has been raised for a long time, especially with the appearance of office automation in the 1980s, which led to dematerialization and Electronic Document Management (EDM). In the same period, workflow management has experienced significant development, but has become more focused on the industry. However, it seems to us that document workflows have not had the same interest for the scientific community. But nowadays, the emergence and supremacy of the Internet in electronic exchanges are leading to a massive dematerialization of documents;which requires a conceptual reconsideration of the organizational framework for the processing of said documents in both public and private administrations. This problem seems open to us and deserves the interest of the scientific community. Indeed, EDM has mainly focused on the storage (referencing) and circulation of documents (traceability). It paid little attention to the overall behavior of the system in processing documents. The purpose of our researches is to model document processing systems. In the previous works, we proposed a general model and its specialization in the case of small documents (any document processed by a single person at a time during its processing life cycle), which represent 70% of documents processed by administrations, according to our study. In this contribution, we extend the model for processing small documents to the case where they are managed in a system comprising document classes organized in subclasses;which is the case for most administrations. We have thus observed that this model is a Markovian <i>M<sup>L×K</sup>/M<sup>L×K</sup>/</i>1 queues network. We have analyzed the constraints of this model and deduced certain characteristics and metrics. <span style="white-space:normal;"><i></i></span><i>In fine<span style="white-space:normal;"></span></i>, the ultimate objective of our work is to design a document workflow management system, integrating a component of global behavior prediction. 展开更多
关键词 Document Processing WORKFLOW Hierarchic Chart Counting Processes Stochastic models Waiting Lines Markov Processes Priority Queues Multiple class and Subclass Queues
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Seismic attenuation relationship with homogeneous and heterogeneous prediction-error variance models 被引量:4
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作者 He-Qing Mu Rong-Rong Xu Ka-Veng Yuen 《Earthquake Engineering and Engineering Vibration》 SCIE EI CSCD 2014年第1期1-11,共11页
Peak ground acceleration(PGA) estimation is an important task in earthquake engineering practice.One of the most well-known models is the Boore-Joyner-Fumal formula,which estimates the PGA using the moment magnitude,t... Peak ground acceleration(PGA) estimation is an important task in earthquake engineering practice.One of the most well-known models is the Boore-Joyner-Fumal formula,which estimates the PGA using the moment magnitude,the site-to-fault distance and the site foundation properties.In the present study,the complexity for this formula and the homogeneity assumption for the prediction-error variance are investigated and an effi ciency-robustness balanced formula is proposed.For this purpose,a reduced-order Monte Carlo simulation algorithm for Bayesian model class selection is presented to obtain the most suitable predictive formula and prediction-error model for the seismic attenuation relationship.In this approach,each model class(a predictive formula with a prediction-error model) is evaluated according to its plausibility given the data.The one with the highest plausibility is robust since it possesses the optimal balance between the data fi tting capability and the sensitivity to noise.A database of strong ground motion records in the Tangshan region of China is obtained from the China Earthquake Data Center for the analysis.The optimal predictive formula is proposed based on this database.It is shown that the proposed formula with heterogeneous prediction-error variance is much simpler than the attenuation model suggested by Boore,Joyner and Fumal(1993). 展开更多
关键词 Bayesian inference Boore-Joyner-Fumal formula heterogeneity variance input-dependent variance model class selection peak ground acceleration seismic attenuation
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大语言模型工具能促进高校学生的高阶思维能力发展吗?——基于12所双一流大学学生问卷调查的实证分析
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作者 李曼丽 乔伟峰 李睿淼 《现代教育技术》 2025年第1期34-43,共10页
在数智时代,重视培养高校学生的高阶思维能力已逐渐成为共识,但高校学生使用大语言模型工具能否促进高阶思维能力的发展尚存争议。澄清这一争议,不仅有助于在理论上分析人工智能背景下学生高阶思维发展的机理,也可以为学校和教师在教育... 在数智时代,重视培养高校学生的高阶思维能力已逐渐成为共识,但高校学生使用大语言模型工具能否促进高阶思维能力的发展尚存争议。澄清这一争议,不仅有助于在理论上分析人工智能背景下学生高阶思维发展的机理,也可以为学校和教师在教育实践中采取何种措施提供可靠依据。基于此,文章利用我国12所双一流大学学生的问卷调查数据,对当前高校学生的大语言模型工具使用情况及其对高阶思维能力的影响进行实证分析,结果显示:超过半数的高校学生使用过大语言模型工具,但深度创意应用仍有待加强;增加大语言模型工具的基础执行应用与深度创意应用频次,均对高阶思维能力发展具有显著的正向影响;交互质量在大语言模型工具使用频次对高阶思维能力的影响过程中发挥中介作用。在此基础上,文章建议高校正视人工智能技术在高等教育教学过程中的作用,积极推动人工智能赋能教育应用;结合课内外真实情境,促进大语言模型工具的深度创意应用;加强师生人工智能素养培养,提升人机交互质量。 展开更多
关键词 大语言模型 高阶思维能力 高校学生 双一流大学
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陆面过程模式CLASS径流模拟的改进和应用
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作者 吴志勇 陆桂华 WENLei 《气候与环境研究》 CSCD 北大核心 2007年第4期515-523,共9页
针对陆面过程模式CLASS(Canadian Land Surface Scheme)产流模拟方面的不足,提出考虑壤中流产流机制的产流模拟方案。利用淮河流域能量和水分循环试验(HUBEX)资料,在史灌河流域对改进前后的模型进行了对比试验。结果表明,产流模拟改进... 针对陆面过程模式CLASS(Canadian Land Surface Scheme)产流模拟方面的不足,提出考虑壤中流产流机制的产流模拟方案。利用淮河流域能量和水分循环试验(HUBEX)资料,在史灌河流域对改进前后的模型进行了对比试验。结果表明,产流模拟改进方案大大提高了CLASS的径流模拟能力,同时改善了模式对土壤含水量的模拟。 展开更多
关键词 陆面过程模式 径流 class模式
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鼻咽癌患者诱导化疗序贯同期放化疗期间躯体-心理症状负担轨迹及影响因素研究
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作者 刘琪 刘佳丽 +4 位作者 刘玉 杨丽敏 范育英 吕星 覃惠英 《护理学报》 2025年第1期1-6,共6页
目的调查鼻咽癌患者诱导化疗序贯同期放化疗期间躯体、心理症状负担轨迹及影响因素。方法便利选取广州某三级甲等医院行诱导化疗序贯同期放化疗的212例鼻咽癌患者为研究对象,于诱导化疗期、放疗第5次、放疗第10次、放疗第15次、放疗第2... 目的调查鼻咽癌患者诱导化疗序贯同期放化疗期间躯体、心理症状负担轨迹及影响因素。方法便利选取广州某三级甲等医院行诱导化疗序贯同期放化疗的212例鼻咽癌患者为研究对象,于诱导化疗期、放疗第5次、放疗第10次、放疗第15次、放疗第20次、放疗第25次、放疗结束、放疗结束后1个月末收集患者报告的不良事件通用术语标准。采用潜类别增长模型分析躯体、心理症状负担轨迹及潜在类别。结果躯体症状负担识别为高躯体症状负担组(89.2%)、中高躯体症状负担组(10.8%);心理症状负担识别为中高心理症状负担组(22.7%)、低心理症状负担组(47.6%)、无心理症状负担组(29.7%)。高躯体症状负担组和中高心理症状负担组在诱导化疗期的症状负担均高于其他组(P<0.05)。logistic回归分析显示,年龄、是否合并其他慢性病、信息获取能力是躯体症状负担轨迹的影响因素;意义感、信息获取能力是心理症状负担轨迹的影响因素(P<0.05)。结论鼻咽癌患者治疗期间的躯体、心理症状负担轨迹存在异质性。年龄低、合并其他慢性病、低信息获取能力的鼻咽癌患者更可能属于高躯体症状负担组;低意义感、低信息获取能力的患者更可能属于症状负担更高的心理症状负担组。 展开更多
关键词 鼻咽癌 诱导化疗序贯同期放化疗 症状负担轨迹 潜类别增长模型 健康素养 心理一致感
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