Xiangbo He, Xiaosheng Liang, Ruirui Li, Kai Zhang, Wenchuan Chen and Yunfeng Peng
This study aims to explore the impact of multisource deformation errors on the oil film contact surface, which arise from manufacturing, assembly, oil pressure and thermal…
Abstract
Purpose
This study aims to explore the impact of multisource deformation errors on the oil film contact surface, which arise from manufacturing, assembly, oil pressure and thermal influences, on the motion accuracy of hydrostatic guideway.
Design/methodology/approach
Using thermal-structural coupling simulations, this research investigates the effects of assembly, oil pressure and thermal factors on deformation errors of the oil film contact surface. By integrating these with manufacturing errors, a profile error model for the oil film contact surface is developed, characterizing the cumulative effect of these errors. Using kinematic theory and progressive Mengen flow controller characteristics, the motion error at any position of the hydrostatic guideway is quantified, examining how surface error traits impact motion accuracy.
Findings
The error averaging effect is affected by the profile error of oil film contact surface. Meanwhile, the motion accuracy of hydrostatic guideway is highly sensitive to the oil film contact surface error amplitude.
Originality/value
This approach allows for precise prediction and analysis of motion accuracy in hydrostatic guideways during the design and manufacturing stages. It also provides guidance for planning process tolerances.
Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-03-2024-0063/
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Yong Huang, Guangyou Song and Guochang Li
The purpose of this study is to explore the seismic damage mechanism of the Dayemaling Bridge during the Maduo earthquake and discuss the seismic damage characteristics of the…
Abstract
Purpose
The purpose of this study is to explore the seismic damage mechanism of the Dayemaling Bridge during the Maduo earthquake and discuss the seismic damage characteristics of the high-pier curved girder bridge.
Design/methodology/approach
In this study, the numerical simulation method is used to analyze the seismic response using synthetic near-field ground motion records.
Findings
The near-field ground motion of the Maduo earthquake has an obvious directional effect, it is more likely to cause bridge seismic damage. Considering the longitudinal slope of the bridge and adopting the continuous girder bridge form, the beam end displacement of the curved bridge can be effectively reduced, and the collision force of the block and the bending moment of the pier bottom are reduced, so the curved bridge with longitudinal slope is adopted.
Originality/value
Combined with the seismic damage phenomenon of bridges in real earthquakes, the seismic damage mechanism and vulnerability characteristics of high-pier curved girder bridges are discussed by the numerical simulation method, which provides technical support for the application of such bridges in high seismic intensity areas.
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Seyed Mahdi Shavarani and Bela Vizvari
The purpose of this paper is to deal with the transportation of a high number of injured people after a disaster in a highly populated large area. Each patient should be delivered…
Abstract
Purpose
The purpose of this paper is to deal with the transportation of a high number of injured people after a disaster in a highly populated large area. Each patient should be delivered to the hospital before the specific deadline to survive. The objective of the study is to maximize the survival rate of patients by proper assignment of existing emergency vehicles to hospitals and efficient generation of vehicle routes.
Design/methodology/approach
The concepts of non-fixed multiple depot pickup and delivery vehicle routing problem (MDPDVRP) is utilized to capture an image of the problem encountered in real life. Due to NP-hardness of the problem, a hybrid genetic algorithm (GA) is proposed as the solution method. The performance of the developed algorithm is investigated through a case study.
Findings
The proposed hybrid model outperforms the traditional GA and also is significantly superior compared to the nearest neighbor assignment. The required time for running the algorithm on a large-scale problem fits well into emergency distribution and the promptness required for humanitarian relief systems.
Originality/value
This paper investigates the efficient assignment of emergency vehicles to patients and their routing in a way that is most appropriate for the problem at hand.
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Qiushan Li, Kabilijiang Umaier, Yun Chen and Osamu Koide
Due to significant differences between urban and rural areas in terms of geographical environment, building scale, resident culture, social organization and other aspects, the…
Abstract
Purpose
Due to significant differences between urban and rural areas in terms of geographical environment, building scale, resident culture, social organization and other aspects, the post-disaster recovery and reconstruction models for both exhibit substantial variation. This study identifies critical strategic issues that must be addressed in housing reconstruction in the context of different social structures of urban–rural “integration” and urban–rural “dualization” to achieve the goal of “building back better” in the future.
Design/methodology/approach
By taking the experience of the 5.12 Wenchuan earthquake and the Taiwan 9.21 earthquake as a reference, this study provides a thematic analysis and systematic summary of the entire process of post-disaster housing reconstruction.
Findings
A successful housing reconstruction process should actively engage disaster-affected populations through participatory institutional design. Providing a diverse housing reconstruction model can coordinate the interests of the government, the market and affected individuals, promoting harmony of residential, productive and ecological functions. However, it can also lead to the division of existing communities.
Research limitations/implications
This research relies on existing literature, government publications, academic studies and news reports, which may carry inherent biases or omissions. Future research can benefit from conducting more extensive and long-term post-reconstruction surveys to assess the sustained impact of recovery efforts while also considering additional data sources to ensure comprehensive and unbiased analyses.
Practical implications
With the support of post-disaster reconstruction policies, diverse changes in land use can lead to urban and rural spatial pattern reform and sustainable regional development, providing a reference for formulating optimal strategies.
Social implications
This study carries significant societal implications by addressing critical strategic issues in housing reconstruction within varying urban–rural social structures. It highlights the importance of engaging affected populations through participatory design and harmonizing government, market and individual interests. The research introduces strategies for activating rural construction land quotas and creating new funding sources, promoting sustainable regional development. Its findings contribute to post-disaster reconstruction models, offering valuable insights for policymakers and stakeholders, ultimately leading to more effective and inclusive recovery efforts and benefiting disaster-prone areas worldwide.
Originality/value
This research primarily investigates the market circulation patterns of urban and rural land under different social structures, delves into the strategies for sources of housing reconstruction funding, along with an assessment of their effectiveness.
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Disasters shape the development of communities and societies not only physically but also socially. This chapter provides some quantitative evidence to this effect by examining…
Abstract
Disasters shape the development of communities and societies not only physically but also socially. This chapter provides some quantitative evidence to this effect by examining changes in social capital in communities affected by the 2008 Wenchuan Earthquake in China.
A two-wave, longitudinal household questionnaire survey data set was used for analysis. The baseline data were obtained in January, 2009, around 8 months after the 2008 Wenchuan Earthquake, adopting a stratified sampling method within a county severely disrupted by the earthquake. A follow-up survey with the same households was conducted in the summer of 2012. Finally, 415 household questionnaire surveys from nine communities within the county were collected for analysis.
Overall, it can be concluded that social capital was strengthened in the post-disaster recovery process in the survey area. Social capital was measured according to three dimensions: (1) affiliation with organizations, (2) the degree of available social support, and (3) the degree of social cohesion within communities. It was found that the average degree of social capital increased during the recovery process, with a decrease of social capital inequalities between different families. More specifically, although informal personal networks were found to be the most prominent sources of social support, the support provided by formal organizations played a relatively more important role immediately after the catastrophe, given that most of the personal networks were also affected. Community cohesion was also found to have increased, with a decrease of standard deviation in the recovery process. This chapter suggests that disasters could generate positive effects rather than negative ones alone. Stronger and more tightly knit communities could be built in the disaster recovery process, if appropriate policies and methods are implemented.
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Jinwei Wang, Xiaowen Xu, Guangjuan Lu, Xin Wang and Alastair M. Morrison
This study aims to investigate the perceived benefits arising from tourist activities at natural disaster sites, to analyze the influence of perceived benefits on satisfaction and…
Abstract
Purpose
This study aims to investigate the perceived benefits arising from tourist activities at natural disaster sites, to analyze the influence of perceived benefits on satisfaction and behavioral intentions and to identify origin region’s moderating role.
Design/methodology/approach
A research model containing dark tourism motivations (DTMs), tourist perceived benefits (TPBs), tourist satisfaction (TS), protection intention (PI) and loyalty intention (LIs) was developed, and visitor origin was introduced as a moderating variable. Taking the 5·12 Wenchuan Earthquake Memorial Museum as a case site, data were obtained by distributing questionnaires on-site, and the model was tested using partial least squares-structural equation modeling (PLS-SEM).
Findings
DTMs had a significant effect on cognitive and affective benefits, and TPBs significantly affected TS, PI and LIs, with satisfaction playing a partial mediating role. The origins of tourists showed a moderating role in part of the influence relationship of perceived benefits.
Practical implications
This study explored the perceived benefits among dark tourists and built a research model of their influence on tourist satisfaction and behavior. This study not only provides suggestions for managers related to dark tourism development in natural disaster areas, but also offers the possibility of enhancing tourist dark tourism experiences by interpreting the psychology and behavior of dark tourists.
Originality/value
This research adopted a new perspective of the decision-making behavior of dark tourists. The perceived benefits arising from visiting natural disaster sites were analyzed and the relationships between TBSs and motivation, TS, PI and LIs were examined. Considering the specificity of dark tourism emotions, the research also analyzed the similarities and differences in the psychology and behavior of locals and non-locals in dark tourism. The research results enrich and deepen the theoretical study of dark tourism.
研究目的
本文旨在探讨游客在自然灾难遗址地进行旅游活动时产生的感知收获, 分析感知收获对游客满意度和行为意向的影响, 并识别来源地在其中的调节效应。
研究设计/方法论/研究方法
构建了一个包含旅游动机、感知收获、满意度、保护意愿和忠诚意向等多个变量在内的研究模型, 并引入游客来源地作为调节变量。而后, 选取5·12汶川特大地震纪念馆作为案例地, 通过现场发放问卷的形式获取数据, 并采用PLS-SEM对模型进行了检验。
研究发现
旅游动机对认知收获和情感收获均具有显著影响; 感知收获显著影响满意度、保护意愿和忠诚意向, 同时满意度在上述影响关系中呈现部分中介作用; 游客来源地在感知收获的部分影响关系中(旅游动机→感知收获、感知收获→保护意愿)呈现出一定的调节作用。
独创性/价值
文章采用了一种新的视角来研究自然灾难遗址地游客的行为决策机制。通过实证数据分析了游客的感知收获, 并进一步考察了其与旅游动机、满意度、保护意愿和忠诚意向之间的影响关系。考虑到灾难遗址地旅游的独特情感特征, 文章还分析了不同来源地(本地—非本地)的游客在旅游过程中呈现出的心理与行为差异。本研究能在一定程度上丰富和深化黑色旅游的理论研究。
Propósito
Este estudio persigue investigar los beneficios percibidos derivados de la actividad turística en lugares afectados por catástrofes naturales, para así analizar la influencia que dichos beneficios ejercen sobre la satisfacción y el comportamiento planificado, e identificar el papel moderador de la región de origen.
Diseño/metodología/enfoque
Se elaboró un modelo de investigación que contiene las variables de motivación por el turismo oscuro, beneficio percibido, satisfacción, protección e intenciones de lealtad, así como la variable moderadora origen. Tomando como área de investigación el Museo Conmemorativo del Terremoto de Wenchuan 5.12, los datos fueron obtenidos distribuyendo cuestionarios in situ. La técnica de análisis de datos aplicada fue el Modelado de Ecuaciones Estructurales de Mínimos Cuadrados Parciales (PLS-SEM)
Hallazgos
La motivación por el turismo oscuro tuvo un efecto significativo en los beneficios cognitivos y afectivos, y los beneficios percibidos afectaron significativamente a la satisfacción, protección e intenciones de lealtad, siendo la satisfacción lo que desempeña un papel mediador parcial. El origen de los turistas mostró un papel moderador en cuanto a la relación de influencia de los beneficios percibidos.
Originalidad/valor
Esta investigación adoptó una nueva perspectiva en el comportamiento de toma de decisiones en los turistas de turismo oscuro, analizó los beneficios percibidos del turismo de oscuro en los lugares donde se produjeron las catástrofes naturales, y examinó la relación entre los beneficios percibidos y la motivación, la satisfacción, la protección y la intención de lealtad. Teniendo en cuenta la especificidad de las emociones del turismo oscuro, la investigación también analizó las similitudes y diferencias entre la psicología y el comportamiento de los turistas locales y no locales en lo respectivo al turismo oscuro. Los resultados de la investigación enriquecen y ofrecen un acercamiento más profundo a los estudios teóricos del turismo oscuro.
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Abstract
Purpose
Livelihood recovery is a top priority to sustain resettled communities. The purpose of this paper is to assess livelihood vulnerability of those displaced and resettled in the aftermath of the 2008 Wenchuan earthquake, China, based on a newly constructed locational adjustable framework.
Design/methodology/approach
The study takes two resettlement villages in Sichuan Province as case study areas. Face-to-face surveys using a structured questionnaire and semi-structured in-depth interviews were conducted to collect primary data in 2012-2013.
Findings
The findings show that distant resettlement of people post the Wenchuan earthquake has resulted in an increased livelihood vulnerability within resettlers and that they face more hazards post-resettlement when compared to host residents in the resettlement areas.
Research limitations/implications
The indicators considered for the livelihood vulnerability index (LVI) are only a subset that represents typical factors applicable in the context of rural settings of China. The LVI may vary if more indicators are incorporated or coefficients obtained using different methods.
Social implications
Highlights should be placed on livelihood assets and hazards to livelihood of the displaced people. During the transition period there is a pressing need for greater efforts to enhance migrants’ employment skills and assist them to restore viable livelihood activities.
Originality/value
This paper constructs a locational adjustable framework for analyzing and assessing livelihood vulnerability of disaster-induced resettlers from three aspects: livelihood hazards, livelihood assets and coping strategies.
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Jinwei Wang, Qimin He, Lili Qian and Guoquan Wang
This study aims to reveal the empirical linkage between tourists’ perspectives and attitudes towards disaster ruins and dark tourism by attesting influence relationships between…
Abstract
Purpose
This study aims to reveal the empirical linkage between tourists’ perspectives and attitudes towards disaster ruins and dark tourism by attesting influence relationships between disaster memorials perception, dark tourism evaluation, as well as heritage protection and tourism development intention.
Design/methodology/approach
Partial least squares structural equation modeling analysis was used on a sample of 413 valid visitor questionnaires collected at the 5·12 Wenchuan Earthquake Memorial Museum, Sichuan Province, China.
Findings
Disaster memorials perception positively influences positive evaluation of dark tourism, heritage protection intention and tourism development intention, while negatively influencing negative evaluation of dark tourism. Furthermore, positive evaluation of dark tourism and heritage protection intention positively affect tourism development intention. In addition, prior knowledge is a significant moderator in the research model.
Originality/value
This study applied the stimulus-organism-response framework and social exchange theory to predict tourists’ behavioral intention toward disaster memorials, providing valuable insights to dark tourism research. It illuminates tourists’ psychological and behavioral characteristics at natural disaster sites and deepens research on the human–nature relationship from the disaster perspective.
研究目的
本研究试图通过验证自然灾难遗址地游客感知、旅游评价、遗产保护意愿与旅游开发意愿之间的影响关系, 以揭示游客对灾难遗址和黑色旅游的感知及态度之间的隐秘逻辑。
研究设计/方法论/研究方法
采用偏最小二乘法结构方程模型, 对在中国四川省5·12汶川特大地震纪念馆收集的413份有效游客问卷进行分析。
研究发现
灾难遗址感知正向影响黑色旅游积极评价、遗产保护意愿和旅游开发意愿, 而负向影响黑色旅游消极评价。同时, 黑色旅游积极评价和遗产保护意愿均显著正向影响旅游开发意愿。此外, 游客的先验知识在研究模型中起着重要的调节作用。
独创性/价值
本研究运用“刺激-机体-反应”研究框架预测了旅游者对自然灾难遗址地的行为意向, 深化了黑色旅游研究, 拓宽了S-O-R理论的适用范围。
Propósito
Este estudio revela el vínculo empírico entre las perspectivas y las actitudes de los turistas hacia las ruinas de catástrofes y el Turismo oscuro, mostrando las relaciones de influencia entre la percepción de los monumentos conmemorativos de catástrofes, la evaluación del turismo oscuro, así como la protección del patrimonio y la intención de desarrollo turístico.
Diseño/metodología/enfoque
Se empleó un análisis de modelización de ecuaciones estructurales por mínimos cuadrados parciales en una muestra de 413 cuestionarios válidos de visitantes recogidos en el 5·12 Museo Conmemorativo del Terremoto de Wenchuan, Sichuan, China.
Hallazgos
La percepción de los monumentos conmemorativos de las catástrofes influye positivamente en las evaluaciones positivas del turismo oscuro, la intención de protección del patrimonio y la intención de desarrollo turístico, mientras que influye negativamente en las evaluaciones negativas del turismo oscuro. Además, las evaluaciones positivas del turismo oscuro y la intención de protección del patrimonio influyen positivamente en la intención de desarrollo turístico. Además, el conocimiento previo moderadora significativamente el modelo de investigación.
Originalidad/valor
Este estudio aplica el marco teórico estímulo-organismo-respuesta (E-O-R) y la teoría del intercambio social para predecir las intenciones de comportamiento de los turistas hacia los monumentos conmemorativos de catástrofes, proporcionando valiosas ideas para el estudio del turismo oscuro. Clarifica las características psicológicas y conductuales de los turistas en los lugares de catástrofes naturales y profundiza en el estudio de la relación entre el ser humano y la naturaleza desde la perspectiva de las catástrofes.
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Jian Wang, Chenqi Situ and Mingzhu Yu
This paper aims to study a dynamic post-disaster emergency planning (PDEP) problem in an integrated network through the investigation of the selection of shelters, medical centers…
Abstract
Purpose
This paper aims to study a dynamic post-disaster emergency planning (PDEP) problem in an integrated network through the investigation of the selection of shelters, medical centers and distribution centers (DCs), and the allocation of evacuees and injured people. The resource and people assignment in multiple periods are considered.
Design/methodology/approach
A mathematical formulation is provided for the PDEP problem. The authors decompose the model into two sub-models as follows: the primary model is an integer programming model and the subproblem is a nonlinear programming model with continuous variables. The simulated annealing is used to solve the primary problem, and particle swarm optimization (PSO) mixed with beetle antennae search (BAS) is used to solve the subproblem.
Findings
The paper finds that BAS can increase the stability of PSO and keep the advantages of PSO’s rapid convergence. By implementing these algorithms on emergency planning after the Wenchuan earthquake that happened in China in 2008, this paper finds that the priority of different levels of injured people is influenced by several factors. Even within the same disaster, the priority of different levels of injured can be inconsistent because of the differences in resource levels.
Originality/value
The authors integrate the shelters, medical centers and DCs as a system, and simultaneously, consider evacuees and injured people and different resource assignments. The authors divide the injured people into three levels and use survival rate function to simulate the survival conditions of different people. The authors provide an improved PSO algorithm to solve the problem.
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Abstract
Purpose
Post-disaster population resettlement is a complicated process, during which the restoration of livelihood and lifestyle plays a critical role in achieving a successful resettlement outcome. This paper attempts to examine how recovery policies and relocation approaches influence people's livelihood recovery and perception of wellbeing. It specifically investigates the role of farmland in producing a livelihood and maintaining a rural lifestyle among displaced people.
Design/methodology/approach
Through face-to-face questionnaire surveys and in-depth interviews with rural residents displaced from their villages after the Wenchuan earthquake in Sichuan, China, this study presents both quantitative and qualitative evidence to investigate how post-disaster policies and particularly the availability of farmland influence people's recovery and their satisfaction with the post-resettlement life.
Findings
Data suggest that availability of farmland, in spite of the size, makes big differences in post-disaster recovery because farmland provides resettled people with not only a livelihood to secure basic living but also a guarantee to maintain a rural lifestyle.
Research limitations/implications
More samples are needed for analyzing factors that significantly influence disaster-displaced farmers' recovery and wellbeing post resettlement.
Practical implications
This study can be used as an important reference for making plans for post-disaster recovery and population resettlement programs in other disaster-prone countries across the world.
Originality/value
Land-based relocation is proposed as a desirable approach to addressing challenges of livelihood restoration amongst the resettled population in rural areas of developing countries.