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Self-organized search-attack mission planning for UAV swarm based on wolf pack hunting behavior 被引量:20
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作者 HU Jinqiang WU Husheng +2 位作者 ZHAN Renjun MENASSEL Rafik ZHOU Xuanwu 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2021年第6期1463-1476,共14页
Cooperative search-attack is an important application of unmanned aerial vehicle(UAV)swarm in military field.The coupling between path planning and task allocation,the heterogeneity of UAVs,and the dynamic nature of t... Cooperative search-attack is an important application of unmanned aerial vehicle(UAV)swarm in military field.The coupling between path planning and task allocation,the heterogeneity of UAVs,and the dynamic nature of task environment greatly increase the complexity and difficulty of the UAV swarm cooperative search-attack mission planning problem.Inspired by the collaborative hunting behavior of wolf pack,a distributed selforganizing method for UAV swarm search-attack mission planning is proposed.First,to solve the multi-target search problem in unknown environments,a wolf scouting behavior-inspired cooperative search algorithm for UAV swarm is designed.Second,a distributed self-organizing task allocation algorithm for UAV swarm cooperative attacking of targets is proposed by analyzing the flexible labor division behavior of wolves.By abstracting the UAV as a simple artificial wolf agent,the flexible motion planning and group task coordinating for UAV swarm can be realized by self-organizing.The effectiveness of the proposed method is verified by a set of simulation experiments,the stability and scalability are evaluated,and the integrated solution for the coupled path planning and task allocation problems for the UAV swarm cooperative search-attack task can be well performed. 展开更多
关键词 search-attack mission planning unmanned aerial vehicle(UAV)swarm wolf pack hunting behavior swarm intelligence labor division
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Multi-Behavior Fusion Based Potential Field Method for Path Planning of Unmanned Surface Vessel 被引量:11
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作者 FU Ming-yu WANG Sha-sha WANG Yuan-hui 《China Ocean Engineering》 SCIE EI CSCD 2019年第5期583-592,共10页
The problem of the unmanned surface vessel (USV) path planning in static and dynamic obstacle environments is addressed in this paper. Multi-behavior fusion based potential field method is proposed, which contains thr... The problem of the unmanned surface vessel (USV) path planning in static and dynamic obstacle environments is addressed in this paper. Multi-behavior fusion based potential field method is proposed, which contains three behaviors: goal-seeking, boundary-memory following and dynamic-obstacle avoidance. Then, different activation conditions are designed to determine the current behavior. Meanwhile, information on the positions, velocities and the equation of motion for obstacles are detected and calculated by sensor data. Besides, memory information is introduced into the boundary following behavior to enhance cognition capability for the obstacles, and avoid local minima problem caused by the potential field method. Finally, the results of theoretical analysis and simulation show that the collision-free path can be generated for USV within different obstacle environments, and further validated the performance and effectiveness of the presented strategy. 展开更多
关键词 USV PATH planning potential field method multi-behavior fusion ACTIVATION conditions local MINIMA
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Impact of tourists' pro-environmental behavior based on planned behavior theory: A case of Xixi Wetland in Hangzhou
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作者 HUANG Xi-kai LIN Tong-tao GU Ya-qing 《Ecological Economy》 2025年第2期184-198,共15页
Under the joint influence of the tourism boom brought by the Hangzhou Asian Games and the concept of"green mountains and clear waters are as valuable as mountains of gold and silver",research on tourists'... Under the joint influence of the tourism boom brought by the Hangzhou Asian Games and the concept of"green mountains and clear waters are as valuable as mountains of gold and silver",research on tourists'pro-environmental behavior has become particularly important.This study not only expands the application scope of the Theory of Planned Behavior,but also provides reference for promoting the brand of Xixi Wetland The study takes the Xixi Wetland in Hangzhou as a case study,with scenic tourists as the research subjects.Through questionnaire surveys,first-hand information was obtained,and the sample was analyzed using SPSSPRO software.Structural equation modeling analysis was also completed using SPSSPRO software.Research has shown that:(1)environmental responsibility has a positive impact on pro-environmental behavior intentions;(2)Local attachment positively influences pro-environmental behavior intentions;(3)Tourists'attitudes have a positive impact on local attachment;(4)Subjective norms have a positive impact on environmental responsibility;(5)Perceived behavioral control has a positive impact on environmental responsibility.This study provides a reference for future research on pro-environmental behavior and the application of planned behavior theory. 展开更多
关键词 pro-environmental behavior theory of planned behavior Xixi Wetland INFLUENCE
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Effect of whole-process management based on planned behavior theory on postoperative recovery of acute appendicitis patients
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作者 Can-Li Yin Ying Wu 《World Journal of Gastrointestinal Surgery》 2025年第11期144-151,共8页
BACKGROUND The theory of planned behavior(TPB)and whole-course nursing are mainly used for patients with cancer,chronic diseases,and other conditions that require longterm rehabilitation.There are few studies on disea... BACKGROUND The theory of planned behavior(TPB)and whole-course nursing are mainly used for patients with cancer,chronic diseases,and other conditions that require longterm rehabilitation.There are few studies on diseases,such as acute abdomen,for which patients urgently need surgery.Owing to the particularity of acute abdomen and limited preoperative preparation,patients and their families may not fully realize the significance of postoperative rehabilitation and the development of good treatment behavior.Therefore,this study used acute appendicitis as an entry point to explore the influence of TPB and the whole-process management of acute abdominal disease.AIM To examine the impact of TPB-based whole-process management on postoperative rehabilitation and complications in patients with acute appendicitis.METHODS A total of 180 patients enrolled between July 2023 and June 2024 were randomly assigned via computer-generated sequence into two groups in a 1:1 ratio,with 90 cases each.In the control group,17 cases withdrew,leaving 73 cases that ultimately received routine care.In the experimental group,6 cases withdrew,leaving 84 cases that ultimately received full-process TPB management.The postoperative rehabilitation and complications were compared between the two groups.RESULTS The first exhaust time,bowel sound recovery time,first defecation time,first postoperative ground movement time,and postoperative hospital stay were shorter in the experimental group than in the control group(P<0.05).The Visual Analog Scale scores of the experimental group were lower than those of the control group at 6 hours,12 hours,24 hours,and 48 hours postoperatively(P<0.05).The total incidence of complications was lower in the experimental group than in the control group(P<0.05).The total satisfaction rate of the experimental group was higher than that of the control group(P<0.05).In both groups,patients 48 hours postoperatively had lower Self-Rating Anxiety Scale scores than those preoperatively.The Self-Rating Anxiety Scale score of the experimental group at 48 hours was lower than that of the control group(P<0.05).CONCLUSION Whole-process management based on the TPB can shorten the postoperative recovery time in patients with acute appendicitis and reduce the incidence of pain and complications. 展开更多
关键词 Theory of planned behavior Whole process management Acute appendicitis Postoperative rehabilitation COMPLICATIONS
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Studying the“Choose to Live Healthy”Campaign Messages Under the Theory of Planned Behavior in Chilean Schools
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作者 Claudia Montero-Liberona 《Journalism and Mass Communication》 2025年第2期61-76,共16页
Considering student obesity problem,this study investigated Chilean teachers’behavioral intentions to include two anti-obesity health messages into their classroom teaching activities,which belonged to the“Choose to... Considering student obesity problem,this study investigated Chilean teachers’behavioral intentions to include two anti-obesity health messages into their classroom teaching activities,which belonged to the“Choose to Live Healthy”campaign.Using the traditional model of the Theory of Planned Behavior(TPB;Ajzen,1985),three research questions were answered:(a)Which of the two messages from the“Choose to Live Healthy”Campaign are known by Chilean schools’teachers?(b)According to the level of knowledge of each message declared by teachers,how do the TPB model and its subcomponents explain teachers’intentions variability to include an anti-obesity message based on the campaign studied in their teaching activities?and(c)Based on the knowledge declared by teachers of the campaign messages,do the TPB model’s subcomponents explain the variability on teachers’intentions to include the anti-obesity content of the campaign message in their teaching activities by types of schools?A total of 245 Chilean teachers were surveyed across three different types of schools.Results from regression analysis confirmed that five of the TPB subcomponents made a fundamental contribution to examine the variability of the theoretical framework upon teachers’behavioral intentions,with the exemption of perceived behavioral control autonomy.This study confirmed the great relevance and effectiveness of the TPB model to contribute to the interpretation of behavioral intentions variability across different types of contexts.Implications for health campaigns are mentioned. 展开更多
关键词 health communication theory of planned behavior Choose to Live Healthy SCHOOLS
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Settlers'and nomads'insights into willingness to participate in national park construction:Implications of the theory of planned behavior
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作者 YANG Ding SONG Jinping +3 位作者 YANG Zhenshan CHEN Dongjun MA Ting SONG Chengzhen 《Journal of Geographical Sciences》 2025年第12期2708-2730,共23页
Achieving conservation goals in natural habitats requires a balanced approach that integrates both sustainable community development and nature conservation,rather than completely excluding human activities from wilde... Achieving conservation goals in natural habitats requires a balanced approach that integrates both sustainable community development and nature conservation,rather than completely excluding human activities from wilderness areas.However,limited understanding exists regarding locals'willingness to participate(WTP)in the construction and stewardship of national parks as well as their driving factors behind this willingness.To identify the key drivers that promote locals'WTP in national parks,we investigated local residents'participation willingness and embedded an additional structure perceived value(PV)into the Theory of Planned Behavior(TPB)model,analyzing the data by using structural equation modeling.Local communities were slightly willing to participate in Changtang National Park and conservation in general;interestingly,nomads'willingness was stronger than settlers'.Perceived behavioral control(PBC)exhibited the most significant impact on WTP,with particular emphasis on the livelihood risks associated with grasslands.PV indirectly influenced WTP by affecting attitude(ATT),personal/social norms(PSN),and PBC,while it did not have a direct impact on WTP.For settlers and nomads,different variables influence their varying levels of willingness to engage in park participation.These results deepen our understanding of community willingness to participate and differences in drivers of WTP between settlers and nomads,contributing to relevant knowledge to inform seeking a balance between sustainable community development and nature conservation. 展开更多
关键词 willingness to participate perceived value personal/social norms Theory of planned behavior Changtang National Park candidate site
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Robust Charging Demand Prediction and Charging Network Planning for Heterogeneous Behavior of Electric Vehicles
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作者 张轶伦 徐思坤 +3 位作者 徐捷 曾学奇 李铮 谢驰 《Journal of Shanghai Jiaotong university(Science)》 EI 2023年第1期136-149,共14页
This study addresses a new charging station network planning problem for smart connected electric vehicles.We embed a charging station choice model into a charging network planning model that explicitly considers the ... This study addresses a new charging station network planning problem for smart connected electric vehicles.We embed a charging station choice model into a charging network planning model that explicitly considers the heterogeneity of the charging behavior in a data-driven manner.To cope with the deficiencies from a small size and sparse behavioral data,we propose a robust charging demand prediction method that can significantly reduce the impact of sample errors and missing data.On the basis of these two building blocks,we form and solve a new optimal charging station location and capacity problem by minimizing the construction and charging costs while considering the charging service level,construction budget,and limit to the number of chargers.We use a case study of planning charging stations in Shanghai to validate our contributions and provide managerial insight in this area. 展开更多
关键词 electric vehicle charging network planning charging behavior robust demand prediction
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Hotshots of Spatio-temporal Behavior of Chinese Residents in the Context of Big Data:Visual Analysis Based on CiteSpace
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作者 LIU Tianlong WANG Fengyu JI Xiang 《Journal of Landscape Research》 2022年第5期47-51,共5页
By using CiteSpace software to create a knowledge map of authors,institutions and keywords,the literature on the spatio-temporal behavior of Chinese residents based on big data in the architectural planning discipline... By using CiteSpace software to create a knowledge map of authors,institutions and keywords,the literature on the spatio-temporal behavior of Chinese residents based on big data in the architectural planning discipline published in the China Academic Network Publishing Database(CNKI)was analyzed and discussed.It is found that there was a lack of communication and cooperation among research institutions and scholars;the research hotspots involved four main areas,including“application in tourism research”,“application in traffic travel research”,“application in work-housing relationship research”,and“application in personal family life research”. 展开更多
关键词 Big data spatio-temporal behavior Visual analysis Hot topics TRENDS
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Mobile robot path planning based on adaptive bacterial foraging algorithm 被引量:8
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作者 梁晓丹 李亮玉 +1 位作者 武继刚 陈瀚宁 《Journal of Central South University》 SCIE EI CAS 2013年第12期3391-3400,共10页
The utilization of biomimicry of bacterial foraging strategy was considered to develop an adaptive control strategy for mobile robot, and a bacterial foraging approach was proposed for robot path planning. In the prop... The utilization of biomimicry of bacterial foraging strategy was considered to develop an adaptive control strategy for mobile robot, and a bacterial foraging approach was proposed for robot path planning. In the proposed model, robot that mimics the behavior of bacteria is able to determine an optimal collision-free path between a start and a target point in the environment surrounded by obstacles. In the simulation, two test scenarios of static environment with different number obstacles were adopted to evaluate the performance of the proposed method. Simulation results show that the robot which reflects the bacterial foraging behavior can adapt to complex environments in the planned trajectories with both satisfactory accuracy and stability. 展开更多
关键词 robot path planning bacterial foraging behaviors swarm intelligence ADAPTATION
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Effects of a theory of planned behavior-based intervention on breastfeeding behaviors after cesarean section:A randomized controlled trial 被引量:6
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作者 Juan Wen Guiling Yu +3 位作者 Yan Kong Holly Wei Shuran Zhao Furong Liu 《International Journal of Nursing Sciences》 CSCD 2021年第2期152-160,I0001,I0002,共11页
Objectives:To examine the efficacy of an intervention based on the theory of planned behavior(TPB)in improving breastfeeding behavior among women with cesarean sections(C-sections).Methods:This research was a randomiz... Objectives:To examine the efficacy of an intervention based on the theory of planned behavior(TPB)in improving breastfeeding behavior among women with cesarean sections(C-sections).Methods:This research was a randomized controlled trial.Women with planned elective C-sections were recruited to participate in a randomized controlled trial between June and September 2020.One hundred thirty-two women were divided randomly into the intervention(n=66)and control group(n=66)by systematic random sampling.In the intervention group,an intervention project was implemented after Keywords:Breastfeeding Cesarean section Intervention studies Theory of planned behavior the C-section to establish positive breastfeeding attitudes,cultivate supportive subjective norms,enhance perceived behavioral control,and strengthen breastfeeding intention to change behaviors.Those in the control group received routine pre-and post-delivery care.Exclusive breastfeeding rate and breast problem were collected at 5 days,2 weeks,and 1 month after C-section.The modified Breastfeeding Attrition Prediction Tool(BAPT)on the first day in the hospital,two weeks,and one month after C-section and Numerical Rating Scale(NRS)24 h postoperatively were used to compare the intervention effect between the two groups.Results:After the intervention,the intervention group had significantly higher exclusive breastfeeding rates than the control group at five days(86.4%vs.60.6%),two weeks(77.3%vs.57.6%),and one month(74.2%vs.50.0%)after the C-section.Besides,the intervention group was less likely to have sore nipples at five days(6.1%vs.18.2%in the control group,P<0.05)and two weeks(9.1%vs.12.1%in the control group,P<0.05).After two weeks of intervention,attitude scores(90.64±8.31 vs.87.20±8.15,P<0.05),subjective norm scores(88.07±24.65 vs.79.42±19.47,P<0.05)and behavior control scores in the intervention group were significantly higher than those in the control group.After one month of intervention,attitude scores(90.34±10.35 vs.84.22±10.51,P<0.05)and behavior control scores(43.13±5.02 vs.39.15±4.69,P<0.05)in the intervention group were significantly higher than those in the control group,which resulted in the higher breastfeeding intention in the intervention group.Conclusion:This study indicated that the TPB-based interventions effectively improved women's breastfeeding behaviors after C-sections. 展开更多
关键词 BREASTFEEDING Cesarean section Intervention studies Theory of planned behavior
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Impact of the COVID-19 pandemic on intention to use traditional Chinese medicine:A cross-sectional study based on the theory of planned behavior 被引量:6
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作者 Yi Xia Lu-shao-bo Sh +2 位作者 Jing-hui Chang Hua-zhang Miao Dong Wang 《Journal of Integrative Medicine》 SCIE CAS CSCD 2021年第3期219-225,共7页
Objective:Coronavirus disease 2019(COVID-19)has become an increasingly severe public health emergency.Although traditional Chinese medicine(TCM)has helped to combat COVID-19,public perception of TCM remains controvers... Objective:Coronavirus disease 2019(COVID-19)has become an increasingly severe public health emergency.Although traditional Chinese medicine(TCM)has helped to combat COVID-19,public perception of TCM remains controversial.We used the theory of planned behavior(TPB)to identify factors that affect the intention to use TCM.Methods:A cross-sectional web-based survey of 10,824 individuals from the general public was conducted between March 16 and April 2,2020.The participants were recruited using a snowball sampling method.Data were collected using a self-administered questionnaire,based on the TPB.The questionnaire consisted of demographic characteristics and TPB structures.Structural equation modeling was used to identify predictors of intention.Results:The results indicated the model explained 77.5%and 71.9%of intention and attitude variance.Intention to use TCM had the strongest relationship with attitude(P<0.001),followed by past behavior(P<0.001),subjective norms(P<0.001)and perceived behavioral control(P<0.001).Attitudes toward TCM were significantly affected by perceived behavioral control(P<0.001),subjective norms(P<0.001)and cognition of TCM(P<0.001).Conclusion:Attitude is a key factor in determining the intention to use TCM,followed by past behaviors,subjective norms and perceived behavioral control.Our results offer important implications for health policy makers to promote the use of TCM. 展开更多
关键词 Coronavirus disease 2019 Theory of planned behavior Traditional Chinese medicine INTENTION
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The role of forest culture in green construction and management of forest parks:merging knowledge-attitude-practice and theory of planned behavior 被引量:3
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作者 Yao Xu Zhiguang Zhang 《Journal of Forestry Research》 SCIE CAS CSCD 2023年第3期841-852,共12页
As a cultural concept refl ecting the relationship between humans and forests,forest culture plays an active role in sustainable forest management.Forest parks provide a wide range of ecosystem services essential for ... As a cultural concept refl ecting the relationship between humans and forests,forest culture plays an active role in sustainable forest management.Forest parks provide a wide range of ecosystem services essential for the sustainable development of society,and the relationships between forest culture,green construction and management of forest parks have practical signifi cance.This study aimed to understand the interaction and process of forest culture infl uencing green construction and management in forest parks with the models Knowledge-Attitude-Practice(KAP)and Theory of Planned Behavior(TPB)by proposing a theoretical model.Four hypotheses were tested using data collected from 193 forest park employees in Heilongjiang Province,China.Our results show that forest culture had a signifi cant infl uence on green construction and forest management.In addition,subjective norm and perceived behavioral control directly impacted behavior in green construction and management of the forest park,whereas attitude did not have an impact.Subjective norm had a direct eff ect on attitude.Results between constructs show that forest culture had an indirect eff ect on planning and construction,and on ecological and economic management.Consequently,it supported three of four hypotheses within the proposed model in determining the infl uence of forest culture on green construction and management. 展开更多
关键词 Forest parks Forest culture Green construction and management Knowledge-attitudepractice Theory of planned behavior
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An Exploratory Investigation of Difficulties in Applying Functional Behavior Assessment and Implementing Behavioral Intervention Plans in ADHD Programs in Saudi Arabia
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作者 Abdulrahman Abdullah Abaoud 《International Journal of Mental Health Promotion》 2022年第4期595-601,共7页
Functional behavior assessment(FBA)and behavioral intervention plans(BIPs)can be effective for students with attention deficit hyperactivity disorder(ADHD);however,teachers may face difficulties when implementing FBA pr... Functional behavior assessment(FBA)and behavioral intervention plans(BIPs)can be effective for students with attention deficit hyperactivity disorder(ADHD);however,teachers may face difficulties when implementing FBA procedures and,in turn,BIPs because of lack of time,insufficient training,and multiplicity of beliefs.Thus,it is important to identify the difficulties teachers may face and the obstacles that can deter them from implementing intervention plans.This is a worthwhile endeavor because nearly all classrooms will have students with behavioral problems who will benefit from specifically designed educational interventions.This study aimed to identify the difficulties in applying FBA and the barriers in implementing BIPs among Saudi teachers in specialized ADHD programs.Using the descriptive-analytical approach,a questionnaire targeting difficulties and barriers was admi-nistered to 209 public school teachers from specialized ADHD programs in Saudi Arabia.The results revealed that the difficulty level of applying FBA in ADHD programs was high.The level of barriers in implementing BIPs was moderate.Finally,the study indicated that barriers in implementing BIPs could be predicted by the difficulties of applying FBA.The results suggest the importance offinding better practices,restructuring the provision of ADHD programs,training teachers,improving assessment tool availability,and ensuring cooperation between school administrators and teachers. 展开更多
关键词 Functional behavior assessment(FBA) behavioral intervention plans(BIPs) attention deficit hyperactivity disorder(ADHD) Saudi Arabia
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Effect of Extended Nursing Based on Planned Behavior Theory on Medication Compliance of Patients with Schizophrenia
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作者 YANG Weipu 《外文科技期刊数据库(文摘版)医药卫生》 2021年第3期353-356,共4页
Objective: effect of extended nursing based on planned behavior theory on medication compliance of patients with schizophrenia. Methods :60 schizophrenic patients in our hospital from January 2019 to January 2020 were... Objective: effect of extended nursing based on planned behavior theory on medication compliance of patients with schizophrenia. Methods :60 schizophrenic patients in our hospital from January 2019 to January 2020 were randomly divided into two groups, 30 cases in each group. The reference group (routine nursing) and the observation group (extended nursing based on the theory of planned behavior) were used to evaluate the medication compliance of 60 patients. Results: there were significant differences in medication compliance between the two groups, the observation group was better than the reference group, the difference was significant (P < 0.05).Conclusion: the extended nursing based on the theory of planned behavior can improve the medication compliance of patients, which is worthy of promotion and practice. 展开更多
关键词 theory of planned behavior extended care SCHIZOPHRENIA medication compliance IMPACT
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Analysis of Psychological and Behavioral Responses of Children Aged 1~3 Years Old with Predictive Nursing during Planned Immunization
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作者 LILing 《外文科技期刊数据库(文摘版)医药卫生》 2022年第8期020-024,共5页
Objective: to observe the practical effect of predictive nursing in the 1-3 year-old childrens immunization nursing. Methods: a total of 114 children aged 1-3 years were enrolled in the study and divided into group ①... Objective: to observe the practical effect of predictive nursing in the 1-3 year-old childrens immunization nursing. Methods: a total of 114 children aged 1-3 years were enrolled in the study and divided into group ①: Control group and group ②: Observation group. Routine nursing and predictive nursing were administered respectively. Results: the data in Table 1-5 all indicate that the data obtained from the nursing methods in the observation group are more satisfactory (P < 0.05). Conclusion: predictive nursing is helpful to improve the coordination degree and comfort level of immunization for children aged 1-3 years old, reduce the incidence of stress reaction, and improve the cognitive level and satisfaction of family members. 展开更多
关键词 predictive care children aged 1-3 years old planned immunization psychological and behavioral res
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Analyzing Electric Bicycle Rider's Unsafe Crossing Behavior Based on Theory of Planned Behavior
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作者 Qingyuan Zhang Guoqiang Zhang Yuli Qi 《现代交通(中英文版)》 2013年第2期15-22,共8页
关键词 不安全行为 电动自行车 行为理论 骑士 道路运输系统 行为控制 交通安全意识 行车事故
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Research on the Behavioral Intention of Health and Wellness Tourism for Elderly People in Chongqing Based on ETPB Theory
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作者 Nan Yuan Sheng Zhong +1 位作者 Qi Wang Bin Tang 《Proceedings of Business and Economic Studies》 2025年第3期353-361,共9页
This study is based on the Extended Theory of Planned Behavior(ETPB)and focuses on the elderly population in the main urban area of Chongqing to explore their intentions and influencing factors regarding health and we... This study is based on the Extended Theory of Planned Behavior(ETPB)and focuses on the elderly population in the main urban area of Chongqing to explore their intentions and influencing factors regarding health and wellness tourism behavior.Data was collected through questionnaire surveys and field research,and SPSS 26.0 and Amos 29.0 software were used for reliability,validity analysis,and structural equation modeling testing.The study shows that behavioral attitude,perceived behavior control,and the context of health and wellness tourism have a significant positive impact on the elderly’s intentions regarding health and wellness tourism behavior,while the influence of subjective norms is not significant.In addition,subjective norms have a significant positive effect on behavioral attitudes and perceived behavioral control.Based on the research conclusions,suggestions are made to strengthen the behavioral intention of elderly tourists to participate in health and wellness tourism. 展开更多
关键词 Health and wellness tourism Theory of planned behavior ELDERLY behavioral intention
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Spatio-temporal heuristic method:a trajectory planning for automatic parking considering obstacle behavior 被引量:5
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作者 Nianfei Gan Miaomiao Zhang +3 位作者 Bing Zhou Tian Chai Xiaojian Wu Yougang Bian 《Journal of Intelligent and Connected Vehicles》 EI 2022年第3期177-187,共11页
Purpose–The purpose of this paper is to develop a real-time trajectory planner with optimal maneuver for autonomous vehicles to deal with dynamic obstacles during parallel parking.Design/methodology/approach–To deal... Purpose–The purpose of this paper is to develop a real-time trajectory planner with optimal maneuver for autonomous vehicles to deal with dynamic obstacles during parallel parking.Design/methodology/approach–To deal with dynamic obstacles for autonomous vehicles during parking,a long-and short-term mixed trajectory planning algorithm is proposed in this paper.In long term,considering obstacle behavior,A-star algorithm was improved by RS curve and potential function via spatio-temporal map to obtain a safe and efficient initial trajectory.In short term,this paper proposes a nonlinear model predictive control trajectory optimizer to smooth and adjust the trajectory online based on the vehicle kinematic model.Moreover,the proposed method is simulated and verified in four common dynamic parking scenarios by ACADO Toolkit and QPOASE solver.Findings–Compared with the spline optimization method,the results show that the proposed method can generate efficient obstacle avoidance strategies,safe parking trajectories and control parameters such as the front wheel angle and velocity in high-efficient central processing units.Originality/value–It is aimed at improving the robustness of automatic parking system and providing a reference for decision-making in a dynamic environment. 展开更多
关键词 spatio-temporal heuristic method Automatic parking Trajectory planning
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