Transportation最新文献

筛选
英文 中文
A modified radiation model based on the characteristics of airline network under large-scale disruptions 基于大规模干扰下航空网络特征的修正辐射模型
IF 4.3 2区 工程技术
Transportation Pub Date : 2024-07-11 DOI: 10.1007/s11116-024-10509-1
Rui Wang, Zhao Zhang
{"title":"A modified radiation model based on the characteristics of airline network under large-scale disruptions","authors":"Rui Wang, Zhao Zhang","doi":"10.1007/s11116-024-10509-1","DOIUrl":"https://doi.org/10.1007/s11116-024-10509-1","url":null,"abstract":"<p>The radiation model is widely used in traffic demand forecasting. However, when applying the radiation model in the aviation field, it overestimates short-distance travel demand, does not consider flight capacity constraints, and cannot respond well to large-scale disruptions such as COVID-19. Based on the principle of the radiation model, this paper modifies the radiation model using the adjacency matrix of the airline network, along with the total passenger inflow and outflow for each city, flight capacity, and effective distance. The modified radiation model’s performance is verified using the 2018 and 2020 Chinese air passenger flow datasets under normal conditions and large-scale disruptions. The study compared the performance of the modified radiation model with the original radiation model and the opportunity priority selection model on an airline network that includes major cities. The results indicate that the modified radiation model is superior to the original radiation model and opportunity priority selection model in modeling airline networks. Additionally, the passenger travel distances provided by the modified radiation model are more accurate. The modified radiation model can better estimate air traffic demand in airline networks and withstand significant disruptions to airline network traffic.</p>","PeriodicalId":49419,"journal":{"name":"Transportation","volume":"8 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141584466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Who drops off web-based travel surveys? Investigating the impact of respondents dropping out of travel diaries during online travel surveys 谁会放弃网络旅行调查?调查在线旅行调查期间受访者退出旅行日记的影响
IF 4.3 2区 工程技术
Transportation Pub Date : 2024-07-04 DOI: 10.1007/s11116-024-10510-8
Kaili Wang, Yicong Liu, Sanjana Hossain, Khandker Nurul Habib
{"title":"Who drops off web-based travel surveys? Investigating the impact of respondents dropping out of travel diaries during online travel surveys","authors":"Kaili Wang, Yicong Liu, Sanjana Hossain, Khandker Nurul Habib","doi":"10.1007/s11116-024-10510-8","DOIUrl":"https://doi.org/10.1007/s11116-024-10510-8","url":null,"abstract":"<p>Household travel surveys collect core datasets for modelling passenger travel demand. However, the decline in survey completion rate has become a concern in recent years. Among all components, the travel diaries are the most challenging part of CAWI travel surveys and suffer significant dropouts of participation. Therefore, an investigation is necessary to understand the influential factors contributing to participation dropouts while reporting their travel dairies and subsequent non-response bias on data quality. This study utilizes binary logit models to capture the relationship between respondents’ drop-off behaviours while filling out travel diaries, their socioeconomic characteristics and different travel diary designs. The study also develops a generalizable analysis framework to measure the impact of non-response bias on data quality. The analysis framework incorporates a trip generation model with microsimulation and bootstrapping techniques. The results show that a diary design with stable repetitions is preferred by respondents and results in less non-response bias in the final dataset. This study also proposes recommendations for future travel surveys.</p>","PeriodicalId":49419,"journal":{"name":"Transportation","volume":"44 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141546167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Accessibility improvement and interregional trade flows 改善可达性和区域间贸易流动
IF 4.3 2区 工程技术
Transportation Pub Date : 2024-07-03 DOI: 10.1007/s11116-024-10511-7
Bartlomiej Rokicki, Esteban Fernández Vázquez, Sławomir Goliszek
{"title":"Accessibility improvement and interregional trade flows","authors":"Bartlomiej Rokicki, Esteban Fernández Vázquez, Sławomir Goliszek","doi":"10.1007/s11116-024-10511-7","DOIUrl":"https://doi.org/10.1007/s11116-024-10511-7","url":null,"abstract":"<p>Accessibility improvement has been regarded as one of the main regional policy goals in the recent decades. As a result, many countries has undertaken complex transport infrastructure investment programmes worth billions of dollars. The best examples of such investment can be China or, in the European context, Spain and more recently Poland. There have been published many analyses focusing on output and employment effects of transport infrastructure investment projects. Yet, there hardly exist any studies that verify their potential influence on interregional trade flows. This paper fills the existing gap in the literature by assessing the impact of accessibility improvement on the volume and the value of interregional trade flows in Poland between 2005 and 2015. We find that there is no statistically significant relationship between travel time reduction and interregional trade. This may explain largely the surprising lack of positive relationship between accessibility improvement and regional GDP growth, reported in previous papers.</p>","PeriodicalId":49419,"journal":{"name":"Transportation","volume":"19 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141496006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Role of policy and consumer attitudes in people’s intention to use autonomous vehicles: a comparative study in China and the USA 政策和消费者态度对人们使用自动驾驶汽车意愿的影响:中美比较研究
IF 4.3 2区 工程技术
Transportation Pub Date : 2024-07-01 DOI: 10.1007/s11116-024-10508-2
Xinghua Li, Jieru Zou, Shubham Agrawal, Yuntao Guo, Tianpei Tang, Xi Feng
{"title":"Role of policy and consumer attitudes in people’s intention to use autonomous vehicles: a comparative study in China and the USA","authors":"Xinghua Li, Jieru Zou, Shubham Agrawal, Yuntao Guo, Tianpei Tang, Xi Feng","doi":"10.1007/s11116-024-10508-2","DOIUrl":"https://doi.org/10.1007/s11116-024-10508-2","url":null,"abstract":"<p>The transition to autonomous vehicles (AVs) will likely vary across countries due to differences in technology advancements, infrastructure, cultural background, and policy. Managing this transition can be challenging, as similar policies may elicit different responses from relevant stakeholders, leading to either societal benefits from the technology or unintended consequences. This study explores the similarities and differences in the impacts of sociodemographic factors, attitudinal factors, and policy-related factors on AV adoption in two countries that are expected to be one of the early adopters: China and the United States. A theoretical framework was developed to examine these impacts, and Multiple Indicators and Multiple Causes models were estimated using 2000 valid survey responses from each country. The model estimation results reveal that certain sociodemographic factors, such as education and income levels, similarly influence AV adoption intentions in both countries. However, other characteristics, like gender and the number of household vehicles, exhibit contrasting effects. Furthermore, attitudinal factors like attitude towards AVs, perceived usefulness, and perceived monetary value significantly impact AV adoption intentions among Chinese respondents, whereas perceived usefulness, perceived nonmonetary value, and subjective norms play a more prominent role in shaping AV adoption intentions among American respondents. In terms of policy impacts, individuals already inclined towards using AVs are more likely to strengthen their intention under all policies, with a more pronounced effect in China, where cultural and economic factors, along with stronger government support for technology, play a significant role.</p>","PeriodicalId":49419,"journal":{"name":"Transportation","volume":"116 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141489543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploring the perception of quality of life in urban daily commuting for sustainable urban transport in Bangkok, Thailand 探究泰国曼谷城市日常通勤中对可持续城市交通的生活质量感知
IF 4.3 2区 工程技术
Transportation Pub Date : 2024-06-28 DOI: 10.1007/s11116-024-10496-3
Pawinee Iamtrakul, Sararad Chayphong, Hayashi Yoshitsugu
{"title":"Exploring the perception of quality of life in urban daily commuting for sustainable urban transport in Bangkok, Thailand","authors":"Pawinee Iamtrakul, Sararad Chayphong, Hayashi Yoshitsugu","doi":"10.1007/s11116-024-10496-3","DOIUrl":"https://doi.org/10.1007/s11116-024-10496-3","url":null,"abstract":"<p>Quality of life (QoL) in daily travel is increasing in popularity as a research topic since transportation infrastructures and services are instrumental in accessing basic services and social capital benefits in areas such as public health, employment, housing, etc. This accessibility has consequently led to improved QoL for the Bangkok population. In this study, the evaluation of the perception of QoL during the daily travel of Bangkokians in Sukhumvit District, Thailand is conducted using face-to-face interview questionnaires with 500 respondents. The structural equation model (SEM) is employed to quantify QoL and its related multidimensional determinants. Four statistically significant factors affect QoL from the travel perspective: (1) accessibility (p-value 0.001), (2) travel cost (p-value 0.05), (3) environment (p-value 0.05), and (4) information (p-value 0.05). Interestingly, accessibility was found to have the most influence on QoL in daily travel. Therefore, policymakers are recommended to consider the degree to which QoL may be affected to establish transportation policies that are more acceptable, practical, and efficient.</p>","PeriodicalId":49419,"journal":{"name":"Transportation","volume":"29 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141462719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Real-time bus arrival delays analysis using seemingly unrelated regression model 利用看似无关的回归模型分析公交车实时到站延误情况
IF 4.3 2区 工程技术
Transportation Pub Date : 2024-06-26 DOI: 10.1007/s11116-024-10507-3
Qi Zhang, Zhenliang Ma, Pengfei Zhang, Yancheng Ling, Erik Jenelius
{"title":"Real-time bus arrival delays analysis using seemingly unrelated regression model","authors":"Qi Zhang, Zhenliang Ma, Pengfei Zhang, Yancheng Ling, Erik Jenelius","doi":"10.1007/s11116-024-10507-3","DOIUrl":"https://doi.org/10.1007/s11116-024-10507-3","url":null,"abstract":"<p>To effectively manage and control public transport operations, understanding the various factors that impact bus arrival delays is crucial. However, limited research has focused on a comprehensive analysis of bus delay factors, often relying on single-step delay prediction models that are unable to account for the heterogeneous impacts of spatiotemporal factors along the bus route. To analyze the heterogeneous impact of bus arrival delay factors, the paper proposes a set of regression equations conditional on the bus location. A seemingly unrelated regression equation (SURE) model is developed to estimate the regression coefficients, accounting for potential correlations between regression residuals caused by shared unobserved factors among equations. The model is validated using bus operations data from Stockholm, Sweden. The results highlight the importance of developing stop-specific bus arrival delay models to understand the heterogeneous impact of explanatory variables. The significant factors impacting bus arrival delays are primarily associated with bus operations, such as delays at consecutive upstream stops, dwell time, scheduled travel time, recurrent congestion, and current traffic conditions. Factors like the calendar and weather have significant but marginal impacts on arrival delays. The study suggests that different bus operating management strategies, such as schedule adjustments, route optimization, and real-time monitoring and control, should be tailored to the characteristics of stop sections since the impacts of these factors vary depending on the stop location.</p>","PeriodicalId":49419,"journal":{"name":"Transportation","volume":"44 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141453132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The interaction between the recent evolution of working from home and online shopping 在家办公与网上购物之间的相互作用
IF 4.3 2区 工程技术
Transportation Pub Date : 2024-06-26 DOI: 10.1007/s11116-024-10506-4
Motahare Mohammadi, Amir Davatgari, Sina Asgharpour, Ramin Shabanpour, Abolfazl Mohammadian, Sybil Derrible, Ram M. Pendyala, Deborah Salon
{"title":"The interaction between the recent evolution of working from home and online shopping","authors":"Motahare Mohammadi, Amir Davatgari, Sina Asgharpour, Ramin Shabanpour, Abolfazl Mohammadian, Sybil Derrible, Ram M. Pendyala, Deborah Salon","doi":"10.1007/s11116-024-10506-4","DOIUrl":"https://doi.org/10.1007/s11116-024-10506-4","url":null,"abstract":"<p>The growing behaviors of work-from-home (WFH) and online shopping hold significant potential for reducing traffic congestion and emissions. Understanding the frequency and the interplay between these two behaviors is important for successful implementation. This study investigates the recent trends of WFH and online shopping and the underlying factors influencing individuals’ decisions on these two behaviors. Focusing on non-grocery online shopping, this study uses comprehensive survey data collected across the United States during October and November 2021. We develop a Generalized Structural Equation Model to jointly examine WFH and online shopping frequency and their interaction. Moreover, the study investigates the psychological aspects of WFH and online shopping, introducing four stochastic latent constructs—WFH comfort, WFH unproductiveness, online shopping enjoyment, and online shopping inconvenience using the attitudinal variables. Results indicate a positive causal relationship, suggesting that increased WFH promotes online shopping engagement. Perceived comfort and productivity at home affect WFH frequency shaped by factors like home workspace, commuting time, childcare responsibilities, and telecommunications with co-workers. Likewise, perceived convenience and enjoyment significantly affect online shopping, influenced by aspects such as timesaving, and the delivery and return process. Technological tools at home also play a role in WFH frequency. Demographic factors like age, race, income, physical disability, and mode choice habits correlate with WFH and online shopping incidence, while job category and employer flexibility influence WFH frequency. These insights can help policymakers to regulate remote work and online shopping activities as they continue to grow.</p>","PeriodicalId":49419,"journal":{"name":"Transportation","volume":"21 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141461826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Understanding inequality in ride-hailing service: an investigation of matching and pickup time 了解打车服务中的不平等现象:对匹配和取车时间的调查
IF 4.3 2区 工程技术
Transportation Pub Date : 2024-06-26 DOI: 10.1007/s11116-024-10495-4
Fan Gao, Jingjing Hao, Zhitao Li, Chunyang Han, Jinjun Tang, Chuyun Zhao
{"title":"Understanding inequality in ride-hailing service: an investigation of matching and pickup time","authors":"Fan Gao, Jingjing Hao, Zhitao Li, Chunyang Han, Jinjun Tang, Chuyun Zhao","doi":"10.1007/s11116-024-10495-4","DOIUrl":"https://doi.org/10.1007/s11116-024-10495-4","url":null,"abstract":"<p>Waiting Time (WT) stands as a pivotal indicator of the accessibility and equality of ride-hailing service. WT is broken down into two parts: the time taken to match passengers with drivers (matching time), and the time for drivers to pick up passengers (pickup time). Prior research merged the two components, leading to biased results. We aim to individually examine the factors influencing each component, considering demographic attributes of drivers and users, trip characteristics, traffic conditions, and neighborhood built environment (BEs). Using two-week ride-hailing orders collected in Shenzhen, our study reveals that: 1) Trip originating from or arriving at tourist attractions and airports exhibit a shorter matching time but an extended pickup time. 2) Female passengers face bias during the matching process, while female drivers tend to experience prolonged durations in both the matching and pickup phases. 3) Matching time is predominantly determined by trip characteristics, whereas pickup time is more influenced by the neighborhood BEs. 4) The impact of matching time on pickup duration varies across trips, influenced by factors such as passenger gender, idle distance, applied discounts, and additional dispatch fees.</p>","PeriodicalId":49419,"journal":{"name":"Transportation","volume":"468 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141453175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Let’s walk! The fallacy of urban first- and last-mile public transport 让我们步行!城市一英里和最后一英里公共交通的谬误
IF 4.3 2区 工程技术
Transportation Pub Date : 2024-06-25 DOI: 10.1007/s11116-024-10505-5
Jeppe Rich
{"title":"Let’s walk! The fallacy of urban first- and last-mile public transport","authors":"Jeppe Rich","doi":"10.1007/s11116-024-10505-5","DOIUrl":"https://doi.org/10.1007/s11116-024-10505-5","url":null,"abstract":"<p>In recent years, there has been an upsurge in intelligent mobility solutions that provide door-to-door services. Although these services offer convenience to certain individuals, it is frequently overlooked that they can lead to welfare losses when accounting for the reduced health benefits that result from reduced physical activity. In this paper, we derive a welfare function of introducing first- and last-mile public transport services. By comparing possible health gains from walking with corresponding accessibility losses, we identify the distance boundaries under which the service fails to be socially beneficial. The results are based on a simulation study and draw on further insights from a recent agent-based model from Copenhagen focusing on first- and last-mile public transport. Although the model is intentionally stylized and may not apply universally to all scenarios featuring diverse population densities, demographic profiles, or transport network layouts, the fundamental conclusion presented in the paper is that first-mile services have minimal welfare impact for average trip distances below 1 km, appears robust even under conservative assumptions. In this case, the probability of failure is almost 100% for any realistic parametrization. This finding implies that planners and researchers should focus on the design of main transit networks and the access and egress of active modes to and from the stations. In particular, door-to-door services covering shorter distances should not be the priority of public funding unless in particular situations or contexts.</p>","PeriodicalId":49419,"journal":{"name":"Transportation","volume":"40 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141448186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Complementing or competing with public transit? Evaluating the parameter sensitivity of potential Mobility-as-a-Service (MaaS) urban users in Germany, the Czech Republic, Poland, and the United Kingdom with a mixed choice model 与公共交通互补还是竞争?用混合选择模型评估德国、捷克共和国、波兰和英国潜在移动即服务(MaaS)城市用户的参数敏感性
IF 4.3 2区 工程技术
Transportation Pub Date : 2024-06-20 DOI: 10.1007/s11116-024-10501-9
Michal Matowicki, Pavla Pecherkova, Marco Amorim, Mira Kern, Nicolaj Motzer, Ondrej Pribyl
{"title":"Complementing or competing with public transit? Evaluating the parameter sensitivity of potential Mobility-as-a-Service (MaaS) urban users in Germany, the Czech Republic, Poland, and the United Kingdom with a mixed choice model","authors":"Michal Matowicki, Pavla Pecherkova, Marco Amorim, Mira Kern, Nicolaj Motzer, Ondrej Pribyl","doi":"10.1007/s11116-024-10501-9","DOIUrl":"https://doi.org/10.1007/s11116-024-10501-9","url":null,"abstract":"<p>In this study, we conducted a comprehensive survey involving a substantial sample size (n = 6,405) of urban daily commuters across four European nations (Germany, the United Kingdom, Poland, and the Czech Republic). Our investigation contributes to an enriched comprehension of the user dynamics associated with Mobility-as-a-Service alternatives and their interrelation with public transit modalities in the context of travel preferences. Specifically, we researched the responsiveness of participants to variations in pricing and travel durations. Additionally, we examine the tendencies of various participant categories, stratified into distinct segments based on shared attributes, toward the adoption of public transportation, MaaS solutions, or private vehicular transport. Our findings highlight the essential role fundamental mobility determinants, such as price and travel time, play in influencing the likelihood of opting for a specific transportation modality. This phenomenon was particularly discernible within the \"Unspecified Users\" group, which gives us options to alter their behavior. The analytical framework used in our study that combined several mathematical modeling tools provided insight into the choices people make when choosing between different travel options, and our findings may be used by decision makers to create better and more informed approaches to promote sustainable alternatives to the use of cars in urban settings.</p>","PeriodicalId":49419,"journal":{"name":"Transportation","volume":"43 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141430563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信