[Objective]The paper was to preliminarily determine the susceptible varieties of Grapholita molesta(Busck)by analyzing trap catches of peach trees at different ripening stages,new shoot damage rate and fruit damage ra...[Objective]The paper was to preliminarily determine the susceptible varieties of Grapholita molesta(Busck)by analyzing trap catches of peach trees at different ripening stages,new shoot damage rate and fruit damage rate at different development stages.[Method]Three traps were hanged in peach orchard of the same variety,with the interval of 30 m.The traps were fixed on ventilated and shaded branches for regular and fixed-point monitoring.Three trees were randomly selected from each variety to investigate the damage fruit rate and new shoot damage rate at east,south,west and north directions of each tree,and the number of infected fruits and damaged new shoots was recorded.[Result]There were obvious differences in taxis selection of G.molesta to different peach varieties,and the trap catches in the same variety varied among different periods.The damage caused by G.molesta in the same variety over the same period was different among different organs.The catch peak of late ripening peach 03-46-78 appeared on August 11.In summer shoot period,the trap catches of late ripening peach 03-46-78 were extremely higher than those of other varieties,and the damage rate of late ripening peach Jinyuan was extremely higher than that of other varieties.In autumn shoot period,the average trap catches of late ripening peach 03-46-78 were significantly higher than those of other varieties,and the damage rate of late ripening peach Jinyuan was significantly higher than that of other varieties.The investigation and analysis of different ripening stages of peach fruits showed that the damage rate of late ripening variety Ruiguang 39 was significantly higher than that of other varieties in the ripening stage.The trap catches of late ripening peach 03-46-78 were significantly higher than those of other varieties in the young fruit stage.The trap catches of late ripening peach 03-46-78 had significant difference with those of other varieties during fruit expansion stage.The trap catches of late ripening peach 03-46-78 had significant difference with that of other varieties during fruit ripening stage.[Conclusion]With the development of new shoots and the ripening of fruits,G.molesta appears different dynamic regularities in different organs of various varieties.The time point that G.molesta transfers with the development of fruit tree organs should be grasped to deeply analyze the physical and chemical properties of fruit trees during the growth period,so as to find out reasonable and effective prevention and control techniques for fruit farmers.展开更多
A taxi company in Shanghai has announced its plan to equip half of its fleet - about 6,000 taxis - with digital video recorders by the end of the year. According to the company, there will be four cameras per taxi, in...A taxi company in Shanghai has announced its plan to equip half of its fleet - about 6,000 taxis - with digital video recorders by the end of the year. According to the company, there will be four cameras per taxi, installed internally as well as externally to ensure the safety of both passengers and drivers.展开更多
Electric Taxis(ETs)are the most favored alternatives to Gasoline Taxis(GTs)in cities that aim to reduce environmental pollution.How to develop a reasonable scale on which GTs are substituted by ETs remains a challenge...Electric Taxis(ETs)are the most favored alternatives to Gasoline Taxis(GTs)in cities that aim to reduce environmental pollution.How to develop a reasonable scale on which GTs are substituted by ETs remains a challenge to governments due to the dynamics and complexity of the taxi system.To address this challenge,this paper develops a discrete-event-based simulation framework to simulate participants in the system and estimate the results under different substitution scales,which are helpful to understanding the status changing law of entities under different substitution scales,such as the operating indices of ETs,the unsatisfied travel requirements of passengers,and the usage state of charging facilities.The framework abstracts the behavioral process of ETs into three elements,namely,entity,behavior,and event.The entities are constructed from the information derived from the trajectory data.The behaviors are defined by rules following behavioral logic under anxiety psychology,which is caused by the limited range of ETs.The events are triggered based on rules from reality.With the help of this framework,a multi-objective optimization model is developed to obtain the optimal substitution scale of GTs in the case study area of Zhengzhou City.Overall,the approach could provide a practical tool to address this challenge,which could support further studies of the effect of ETs on urban taxis.展开更多
Taxi drivers' cruising patterns are learnt with GPS trajectory data collected in Shenzhen, China. By employing Ripley's K function, the impacts of land use and pick-up experience on taxis' cruising behavio...Taxi drivers' cruising patterns are learnt with GPS trajectory data collected in Shenzhen, China. By employing Ripley's K function, the impacts of land use and pick-up experience on taxis' cruising behavior are investigated concerning about both intensity of influence and radius of influence. The results indicate that, in general, taxi drivers tend to learn more from land use characteristics than from pick-up experience. The optimal radius of influence of land use points and previous pick-up points is 14.18 km and 9.93 km, respectively. The findings also show that the high-earning drivers or thorough drivers pay more attention to land use characteristics and tend to cruise in high-density area, while the low-earning drivers or focus drivers prefer to learn more from previous pick-up experience and select the area which is far away from the high-density area. These findings facilitate the development of measures of managing taxi's travel behavior by providing useful insights into taxis' cruising patterns. The results also provide useful advice for taxi drivers to make efficient cruising decision, which will contribute to the improvement of cruising efficiency and the reduction of negative effects.展开更多
The objective of this study is to investigate the spatiotemporal dynamics of a Rhizophagusgrandis-Dendroctonusvalenspredator-prey system.Under Neu-mann boundary conditions,we establish a reaction-diffusion system inco...The objective of this study is to investigate the spatiotemporal dynamics of a Rhizophagusgrandis-Dendroctonusvalenspredator-prey system.Under Neu-mann boundary conditions,we establish a reaction-diffusion system incorpo-rating Holling-II functional response,nonlocal effect,predator-prey taxis and time delay to elucidate the regulatory mechanisms of chemotactic behaviors and delayed predation pressure on ecosystem stability.In addition,we inves-tigate the existence conditions for Hopf bifurcation and employ the multiple time scales method to derive its normal form.Under appropriate parameter constraints,numerical simulations demonstrate that the system exclusively exhibits Hopf bifurcation in the current parameter configuration,where non-local interactions,taxis and time delays synergistically induce the formation of spatially heterogeneous periodic solutions.These results elucidate the in-trinsic mechanism underlying periodic pest outbreaks and provide a theoret-ical foundation for optimizing biological control strategies.Notably,our anal-ysis reveals the critical role of predator taxis capability and delayed predation feedback in stabilizing pest population cycles,offering practical guidance for sustainable forest pest management.展开更多
A comprehensive understanding of human mobility patterns in urban areas is essential for urban development and transportation planning.In this study,we create entropy-based measurements to capture the geographical dis...A comprehensive understanding of human mobility patterns in urban areas is essential for urban development and transportation planning.In this study,we create entropy-based measurements to capture the geographical distribution diversity of trip origins and destinations.Specifically,we develop origin-entropy and destination-entropy based on taxi and ride-sharing trip records.The origin-entropy for a given zone accounts for all the trips that originate from this zone and calculates the level of geographical distribution diversity of these trips’destinations.Likewise,the destination-entropy for a given zone considers all the trips that end in this zone and calculates the level of geographical distribution diversity of these trips’origins.Furthermore,we have created an interactive geovisualization that enables researchers to delve into and juxtapose the spatial and temporal dynamics of origin and destination entropy,in conjunction with trip counts for both origins and destinations.Results indicate that entropy-based measurements effectively capture shifts in the diversity of trips’geographical origins and destinations,reflecting changes in travel decisions due to major events like the COVID-19 pandemic.These measurements,alongside trip counts,offer a more comprehensive understanding of urban human flows.展开更多
Sustainable development has become a critical global priority,and green transportation solutions,such as electric taxis,play a vital role in achieving this goal.This study examines the factors influencing students’in...Sustainable development has become a critical global priority,and green transportation solutions,such as electric taxis,play a vital role in achieving this goal.This study examines the factors influencing students’intentions to adopt electric taxi services in Hanoi,Vietnam,as a step toward sustainable urban mobility.We surveyed 573 students and ana-lyzed key determinants using reliability tests,exploratory factor analysis(EFA),and linear regression.The results indi-cate that four factors significantly influence adoption intentions:Perceived Usefulness and Sustainability,Price,Brand Awareness,and Service Quality.Among these,Perceived Usefulness and Sustainability had the strongest positive im-pact,while Service Quality exerted the weakest influence.Notably,Habit and Ease of Use&Transaction Convenience were found to be statistically insignificant in the final model.These findings provide practical implications for business-es and policymakers aiming to use electric taxi adoption.To enhance appeal,stakeholders should emphasize environ-mental benefits,competitive pricing,and brand recognition while improving service reliability.By addressing these fac-tors,electric taxi services can accelerate the transition to sustainable transportation,aligning with global climate goals and transforming urban mobility.This study offers actionable insights for encouraging greener travel behaviors among students,a key demographic for long-term sustainability impact.展开更多
1 There was a taxi driver who was angry and wanted to finish his shift as soon as possible.When he arrived to pick up his last passenger of the day,he honked the horn(按喇叭),but no one came out of the apartment.Minut...1 There was a taxi driver who was angry and wanted to finish his shift as soon as possible.When he arrived to pick up his last passenger of the day,he honked the horn(按喇叭),but no one came out of the apartment.Minutes later,he honked again,but still there was no reaction.展开更多
When youre a taxi driver,you never know who youll end up picking up—it might even be a long-lost friend from over 20 years ago!51-year-old Texas resident Danny Blanton was captured in the most funny moment by the das...When youre a taxi driver,you never know who youll end up picking up—it might even be a long-lost friend from over 20 years ago!51-year-old Texas resident Danny Blanton was captured in the most funny moment by the dashboard camera when he realized his passenger was not a stranger.This man was a dear friend from his past!展开更多
Background:Atopic dermatitis is a chronic inflammatory skin disorder characterized by recurrent eczema-like rashes and severe itching.Taxi San is an external herbal formulation with the effects of clearing heat,drying...Background:Atopic dermatitis is a chronic inflammatory skin disorder characterized by recurrent eczema-like rashes and severe itching.Taxi San is an external herbal formulation with the effects of clearing heat,drying dampness,detoxifying,and relieving itching,making it suitable for treating acute and subacute dermatitis or eczema.Objectives:To evaluate the clinical efficacy of topical Taxi San in treating atopic dermatitis patients with dampness-heat syndrome and its inhibitory effect against Staphylococcus aureus(S.aureus)colonization.Methods:50 patients with atopic dermatitis were enrolled from the Dermatology Department of Shaanxi Provincial Hospital of Traditional Chinese Medicine,with bilateral symmetrical lesions selected as target sites.The control-side lesions were treated with boric acid solution wet compresses,while the treatment-side lesions received Taxi San solution wet compresses,both administered twice daily for 14 d.Clinical efficacy was evaluated using the Scoring Atopic Dermatitis(SCORAD),Investigator Global Assessment(IGA),Dermatology Life Quality Index/Children’s Dermatology Life Quality Index(DLQI/CDLQI),adverse events(AEs)and S.aureus colonization density,which were compared between the groups.The antibacterial efficacy of Taxi San was further investigated through in vitro antibacterial tests.Results:After 14 d of treatment with Taxi San,erythema and pimples were reduced on the treated sides.Additionally,the SCORAD,IGA,and DLQI/CDLQI scores showed significant decreases(P<0.05).S.aureus colonization on the treated sides declined markedly from 78%to 4.76%.Compared to the control sides,the reduction in S.aureus colonization following 14 d of Taxi San treatment was statistically significant(P<0.05).Furthermore,in vitro antibacterial assays demonstrated that the minimum inhibitory concentration of Taxi San against the seven tested S.aureus strains was 0.125 g/mL.Conclusions:Taxi San effectively reduces S.aureus colonization and ameliorates clinical symptoms in atopic dermatitis patients with dampness-heat syndrome,demonstrating high therapeutic potential and safety.展开更多
Traveling has its allure for many romantic souls, myself included. It allows us towatch, listen, and reflect on all we see outside of ourselves-other lands, peoples,languages, cultures, and natural and human-made wond...Traveling has its allure for many romantic souls, myself included. It allows us towatch, listen, and reflect on all we see outside of ourselves-other lands, peoples,languages, cultures, and natural and human-made wonders and all we carry withinus. It’s a kind of active meditation. This is what my year in China was like,especially when I would "go on the road" to see parts of China other than my adoptedhometown, Shanghai.展开更多
This study proposes a prediction model considering external weather and holiday factors to address the issue of accurately predicting urban taxi travel demand caused by complex data and numerous influencing factors.Th...This study proposes a prediction model considering external weather and holiday factors to address the issue of accurately predicting urban taxi travel demand caused by complex data and numerous influencing factors.The model integrates the Complete Ensemble Empirical Mode Decomposition with Adaptive Noise(CEEMDAN)and Convolutional Long Short Term Memory Neural Network(ConvLSTM)to predict short-term taxi travel demand.The CEEMDAN decomposition method effectively decomposes time series data into a set of modal components,capturing sequence characteristics at different time scales and frequencies.Based on the sample entropy value of components,secondary processing of more complex sequence components after decomposition is employed to reduce the cumulative prediction error of component sequences and improve prediction efficiency.On this basis,considering the correlation between the spatiotemporal trends of short-term taxi traffic,a ConvLSTM neural network model with Long Short Term Memory(LSTM)time series processing ability and Convolutional Neural Networks(CNN)spatial feature processing ability is constructed to predict the travel demand for urban taxis.The combined prediction model is tested on a taxi travel demand dataset in a certain area of Beijing.The results show that the CEEMDAN-ConvLSTM prediction model outperforms the LSTM,Autoregressive Integrated Moving Average model(ARIMA),CNN,and ConvLSTM benchmark models in terms of Symmetric Mean Absolute Percentage Error(SMAPE),Root Mean Square Error(RMSE),Mean Absolute Error(MAE),and R2 metrics.Notably,the SMAPE metric exhibits a remarkable decline of 21.03%with the utilization of our proposed model.These results confirm that our study provides a highly accurate and valid model for taxi travel demand forecasting.展开更多
Background and Objective: HIV infection is a major global Public Health threat worldwide, particularly in Sub-Saharan Africa of which Benin. The level of knowledge determines the attitudes and behaviors of the populat...Background and Objective: HIV infection is a major global Public Health threat worldwide, particularly in Sub-Saharan Africa of which Benin. The level of knowledge determines the attitudes and behaviors of the populations towards this infection. The study objective was to assess knowledge, attitudes and practices related to HIV infection among motorbike taxi drivers (MTD) in Parakou in 2021. Methods: This was a descriptive cross-sectional study targeting MTD in Parakou in 2021. Participants were selected by cluster sampling. Pretested Digitized questionnaire using KoboCollect<sup>@</sup> applicationserved as a data collection tool. Knowledge, attitudes and practices variable were treated on a score scale. A knowledge score was considered to reflect a good knowledge of HIV if at least two-thirds of the knowledge statements had been correctly answered provided the subject recognized the sexual route as one of modes of HIV transmission, identified at least one preventive measure and meant the incurability of the disease. Quantitative and qualitative variables were appropriately described using the EPI Info 7.1.3.3 software. The participant was classified at positive attitude/practice for HIV prevention, when it has a score of at least 80% and suggests a good preventive measure face a risk of exposure to HIV. Results: A total of 374 subjects were recruited into the study. The mean age was 31.51 ± 7.76 years. Most participants (86.06%) had good knowledge of condom use as an HIV prevention method. The sources of information mentioned were mainly the media (77.07%), relatives or friends (63.38%), and field-workers from non-governmental organizations (37.26%). Routine HIV testing was 50.53%. Among participants, 76.10% reported at least two different sexual partners. Condom use was 59.18 % during the casual sexual intercourse. Within the client-provider relationship with female sex workers, 33.17% had had sexual intercourse with them. The sexual route was the most cited (92.99%), and 90.23% stated that HIV infection can be stabilized by medication in a health structure. Conclusion: The level of knowledge of motorbike taxi drivers in Parakou does not match their behavior with regard to HIV prevention. Appropriate strategies are needed to develop prevention skills in this population. To effectively comb at HIV, it will be necessary to strengthen the targeted HIV preventive interventions at key and bridge populations including motorbike taxi drivers in Benin.展开更多
In order to determine the regulations of the development of taxi supply under entry regulations in Chinese cities, an improved neural network model is applied to find the particular years when the government artificia...In order to determine the regulations of the development of taxi supply under entry regulations in Chinese cities, an improved neural network model is applied to find the particular years when the government artificially puts new taxis into the market, and then extract the political influence from the taxi supply. The model is also utilized to study the relationships between the adjusted taxi supply and non-policy factors. A case study of Nanjing city is conducted. The results show that 2001 and 2007 are the particular years that the Nanjing government artificially put new taxis into its taxi market, which is in accordance with the five-year plan of China and the local development plans. The results also show that the improved neural network model has a good performance in expositing the evolution of adjusted taxi supply related to non-policy factors.展开更多
In order to ease congestion and ground delays in major hub airports, an aircraft taxiing scheduling optimization model is proposed with schedule time as the object function. In the new model, the idea of a classical j...In order to ease congestion and ground delays in major hub airports, an aircraft taxiing scheduling optimization model is proposed with schedule time as the object function. In the new model, the idea of a classical job shop-schedule problem is adopted and three types of special aircraft-taxi conflicts are considered in the constraints. To solve such nondeterministic polynomial time-complex problems, the immune clonal selection algorithm（ICSA） is introduced. The simulation results in a congested hour of Beijing Capital International Airport show that, compared with the first-come-first-served（FCFS） strategy, the optimization-planning strategy reduces the total scheduling time by 13.6 min and the taxiing time per aircraft by 45.3 s, which improves the capacity of the runway and the efficiency of airport operations.展开更多
Taxi trajectories from urban environments allow inferring various information about the transport service qualities and commuter dynamics.It is possible to associate starting and end points of taxi trips with requirem...Taxi trajectories from urban environments allow inferring various information about the transport service qualities and commuter dynamics.It is possible to associate starting and end points of taxi trips with requirements of individual groups of people and even social inequalities.Previous research shows that due to service restrictions,boro taxis have typical customer destination locations on selected Saturdays:many drop-off clusters appear near the restricted zone,where it is not allowed to pick up customers and only few drop-off clusters appear at complicated crossing.Detected crossings imply recent infrastructural modifications.We want to follow up on these results and add one additional group of commuters:Citi Bike users.For selected Saturdays in June 2015,we want to compare the destinations of boro taxi and Citi Bike users.This is challenging due to manifold differences between active mobility and motorized road users,and,due to the fact that station-based bike sharing services are restricted to stations.Start and end points of trips,as well as the volumes in between rely on specific numbers of bike sharing stations.Therefore,we introduce a novel spatiotemporal assigning procedure for areas of influence around static bike sharing stations for extending available computational methods.展开更多
文摘[Objective]The paper was to preliminarily determine the susceptible varieties of Grapholita molesta(Busck)by analyzing trap catches of peach trees at different ripening stages,new shoot damage rate and fruit damage rate at different development stages.[Method]Three traps were hanged in peach orchard of the same variety,with the interval of 30 m.The traps were fixed on ventilated and shaded branches for regular and fixed-point monitoring.Three trees were randomly selected from each variety to investigate the damage fruit rate and new shoot damage rate at east,south,west and north directions of each tree,and the number of infected fruits and damaged new shoots was recorded.[Result]There were obvious differences in taxis selection of G.molesta to different peach varieties,and the trap catches in the same variety varied among different periods.The damage caused by G.molesta in the same variety over the same period was different among different organs.The catch peak of late ripening peach 03-46-78 appeared on August 11.In summer shoot period,the trap catches of late ripening peach 03-46-78 were extremely higher than those of other varieties,and the damage rate of late ripening peach Jinyuan was extremely higher than that of other varieties.In autumn shoot period,the average trap catches of late ripening peach 03-46-78 were significantly higher than those of other varieties,and the damage rate of late ripening peach Jinyuan was significantly higher than that of other varieties.The investigation and analysis of different ripening stages of peach fruits showed that the damage rate of late ripening variety Ruiguang 39 was significantly higher than that of other varieties in the ripening stage.The trap catches of late ripening peach 03-46-78 were significantly higher than those of other varieties in the young fruit stage.The trap catches of late ripening peach 03-46-78 had significant difference with those of other varieties during fruit expansion stage.The trap catches of late ripening peach 03-46-78 had significant difference with that of other varieties during fruit ripening stage.[Conclusion]With the development of new shoots and the ripening of fruits,G.molesta appears different dynamic regularities in different organs of various varieties.The time point that G.molesta transfers with the development of fruit tree organs should be grasped to deeply analyze the physical and chemical properties of fruit trees during the growth period,so as to find out reasonable and effective prevention and control techniques for fruit farmers.
文摘A taxi company in Shanghai has announced its plan to equip half of its fleet - about 6,000 taxis - with digital video recorders by the end of the year. According to the company, there will be four cameras per taxi, installed internally as well as externally to ensure the safety of both passengers and drivers.
基金supported in part by the National Natural Science Foundation of China[Grant 41771473]Fundamental Research Funds for the Central Universities[Grant 2042020kfxg24].
文摘Electric Taxis(ETs)are the most favored alternatives to Gasoline Taxis(GTs)in cities that aim to reduce environmental pollution.How to develop a reasonable scale on which GTs are substituted by ETs remains a challenge to governments due to the dynamics and complexity of the taxi system.To address this challenge,this paper develops a discrete-event-based simulation framework to simulate participants in the system and estimate the results under different substitution scales,which are helpful to understanding the status changing law of entities under different substitution scales,such as the operating indices of ETs,the unsatisfied travel requirements of passengers,and the usage state of charging facilities.The framework abstracts the behavioral process of ETs into three elements,namely,entity,behavior,and event.The entities are constructed from the information derived from the trajectory data.The behaviors are defined by rules following behavioral logic under anxiety psychology,which is caused by the limited range of ETs.The events are triggered based on rules from reality.With the help of this framework,a multi-objective optimization model is developed to obtain the optimal substitution scale of GTs in the case study area of Zhengzhou City.Overall,the approach could provide a practical tool to address this challenge,which could support further studies of the effect of ETs on urban taxis.
基金Project(NCET-14-0318) supported by the Humanity and Social Science Youth Foundation of Ministry of Education,ChinaProject supported by the Training Program for Outstanding Young Teachers in Jilin University,ChinaProject(2014M551191) supported by China Postdoctoral Science Foundation
文摘Taxi drivers' cruising patterns are learnt with GPS trajectory data collected in Shenzhen, China. By employing Ripley's K function, the impacts of land use and pick-up experience on taxis' cruising behavior are investigated concerning about both intensity of influence and radius of influence. The results indicate that, in general, taxi drivers tend to learn more from land use characteristics than from pick-up experience. The optimal radius of influence of land use points and previous pick-up points is 14.18 km and 9.93 km, respectively. The findings also show that the high-earning drivers or thorough drivers pay more attention to land use characteristics and tend to cruise in high-density area, while the low-earning drivers or focus drivers prefer to learn more from previous pick-up experience and select the area which is far away from the high-density area. These findings facilitate the development of measures of managing taxi's travel behavior by providing useful insights into taxis' cruising patterns. The results also provide useful advice for taxi drivers to make efficient cruising decision, which will contribute to the improvement of cruising efficiency and the reduction of negative effects.
基金funded by the Heilongjiang Provincial Natural Science Foundation of China(Grant No.LH2024A001)the College Students Innovations Special Project funded by Northeast Forestry University(No.DCLXY-2025010).
文摘The objective of this study is to investigate the spatiotemporal dynamics of a Rhizophagusgrandis-Dendroctonusvalenspredator-prey system.Under Neu-mann boundary conditions,we establish a reaction-diffusion system incorpo-rating Holling-II functional response,nonlocal effect,predator-prey taxis and time delay to elucidate the regulatory mechanisms of chemotactic behaviors and delayed predation pressure on ecosystem stability.In addition,we inves-tigate the existence conditions for Hopf bifurcation and employ the multiple time scales method to derive its normal form.Under appropriate parameter constraints,numerical simulations demonstrate that the system exclusively exhibits Hopf bifurcation in the current parameter configuration,where non-local interactions,taxis and time delays synergistically induce the formation of spatially heterogeneous periodic solutions.These results elucidate the in-trinsic mechanism underlying periodic pest outbreaks and provide a theoret-ical foundation for optimizing biological control strategies.Notably,our anal-ysis reveals the critical role of predator taxis capability and delayed predation feedback in stabilizing pest population cycles,offering practical guidance for sustainable forest pest management.
文摘A comprehensive understanding of human mobility patterns in urban areas is essential for urban development and transportation planning.In this study,we create entropy-based measurements to capture the geographical distribution diversity of trip origins and destinations.Specifically,we develop origin-entropy and destination-entropy based on taxi and ride-sharing trip records.The origin-entropy for a given zone accounts for all the trips that originate from this zone and calculates the level of geographical distribution diversity of these trips’destinations.Likewise,the destination-entropy for a given zone considers all the trips that end in this zone and calculates the level of geographical distribution diversity of these trips’origins.Furthermore,we have created an interactive geovisualization that enables researchers to delve into and juxtapose the spatial and temporal dynamics of origin and destination entropy,in conjunction with trip counts for both origins and destinations.Results indicate that entropy-based measurements effectively capture shifts in the diversity of trips’geographical origins and destinations,reflecting changes in travel decisions due to major events like the COVID-19 pandemic.These measurements,alongside trip counts,offer a more comprehensive understanding of urban human flows.
文摘Sustainable development has become a critical global priority,and green transportation solutions,such as electric taxis,play a vital role in achieving this goal.This study examines the factors influencing students’intentions to adopt electric taxi services in Hanoi,Vietnam,as a step toward sustainable urban mobility.We surveyed 573 students and ana-lyzed key determinants using reliability tests,exploratory factor analysis(EFA),and linear regression.The results indi-cate that four factors significantly influence adoption intentions:Perceived Usefulness and Sustainability,Price,Brand Awareness,and Service Quality.Among these,Perceived Usefulness and Sustainability had the strongest positive im-pact,while Service Quality exerted the weakest influence.Notably,Habit and Ease of Use&Transaction Convenience were found to be statistically insignificant in the final model.These findings provide practical implications for business-es and policymakers aiming to use electric taxi adoption.To enhance appeal,stakeholders should emphasize environ-mental benefits,competitive pricing,and brand recognition while improving service reliability.By addressing these fac-tors,electric taxi services can accelerate the transition to sustainable transportation,aligning with global climate goals and transforming urban mobility.This study offers actionable insights for encouraging greener travel behaviors among students,a key demographic for long-term sustainability impact.
文摘1 There was a taxi driver who was angry and wanted to finish his shift as soon as possible.When he arrived to pick up his last passenger of the day,he honked the horn(按喇叭),but no one came out of the apartment.Minutes later,he honked again,but still there was no reaction.
文摘When youre a taxi driver,you never know who youll end up picking up—it might even be a long-lost friend from over 20 years ago!51-year-old Texas resident Danny Blanton was captured in the most funny moment by the dashboard camera when he realized his passenger was not a stranger.This man was a dear friend from his past!
基金supported by the Shaanxi Provincial Research and Innovation Team for Atopic Dermatitis of Traditional Chinese Medicine(No.TZKN-CXTD-02)the Key Industry Innovation Chain Project of Shaanxi Province(No.2021ZDLSF04-12).
文摘Background:Atopic dermatitis is a chronic inflammatory skin disorder characterized by recurrent eczema-like rashes and severe itching.Taxi San is an external herbal formulation with the effects of clearing heat,drying dampness,detoxifying,and relieving itching,making it suitable for treating acute and subacute dermatitis or eczema.Objectives:To evaluate the clinical efficacy of topical Taxi San in treating atopic dermatitis patients with dampness-heat syndrome and its inhibitory effect against Staphylococcus aureus(S.aureus)colonization.Methods:50 patients with atopic dermatitis were enrolled from the Dermatology Department of Shaanxi Provincial Hospital of Traditional Chinese Medicine,with bilateral symmetrical lesions selected as target sites.The control-side lesions were treated with boric acid solution wet compresses,while the treatment-side lesions received Taxi San solution wet compresses,both administered twice daily for 14 d.Clinical efficacy was evaluated using the Scoring Atopic Dermatitis(SCORAD),Investigator Global Assessment(IGA),Dermatology Life Quality Index/Children’s Dermatology Life Quality Index(DLQI/CDLQI),adverse events(AEs)and S.aureus colonization density,which were compared between the groups.The antibacterial efficacy of Taxi San was further investigated through in vitro antibacterial tests.Results:After 14 d of treatment with Taxi San,erythema and pimples were reduced on the treated sides.Additionally,the SCORAD,IGA,and DLQI/CDLQI scores showed significant decreases(P<0.05).S.aureus colonization on the treated sides declined markedly from 78%to 4.76%.Compared to the control sides,the reduction in S.aureus colonization following 14 d of Taxi San treatment was statistically significant(P<0.05).Furthermore,in vitro antibacterial assays demonstrated that the minimum inhibitory concentration of Taxi San against the seven tested S.aureus strains was 0.125 g/mL.Conclusions:Taxi San effectively reduces S.aureus colonization and ameliorates clinical symptoms in atopic dermatitis patients with dampness-heat syndrome,demonstrating high therapeutic potential and safety.
文摘Traveling has its allure for many romantic souls, myself included. It allows us towatch, listen, and reflect on all we see outside of ourselves-other lands, peoples,languages, cultures, and natural and human-made wonders and all we carry withinus. It’s a kind of active meditation. This is what my year in China was like,especially when I would "go on the road" to see parts of China other than my adoptedhometown, Shanghai.
基金supported by the Surface Project of the National Natural Science Foundation of China(No.71273024)the Fundamental Research Funds for the Central Universities of China(2021YJS080).
文摘This study proposes a prediction model considering external weather and holiday factors to address the issue of accurately predicting urban taxi travel demand caused by complex data and numerous influencing factors.The model integrates the Complete Ensemble Empirical Mode Decomposition with Adaptive Noise(CEEMDAN)and Convolutional Long Short Term Memory Neural Network(ConvLSTM)to predict short-term taxi travel demand.The CEEMDAN decomposition method effectively decomposes time series data into a set of modal components,capturing sequence characteristics at different time scales and frequencies.Based on the sample entropy value of components,secondary processing of more complex sequence components after decomposition is employed to reduce the cumulative prediction error of component sequences and improve prediction efficiency.On this basis,considering the correlation between the spatiotemporal trends of short-term taxi traffic,a ConvLSTM neural network model with Long Short Term Memory(LSTM)time series processing ability and Convolutional Neural Networks(CNN)spatial feature processing ability is constructed to predict the travel demand for urban taxis.The combined prediction model is tested on a taxi travel demand dataset in a certain area of Beijing.The results show that the CEEMDAN-ConvLSTM prediction model outperforms the LSTM,Autoregressive Integrated Moving Average model(ARIMA),CNN,and ConvLSTM benchmark models in terms of Symmetric Mean Absolute Percentage Error(SMAPE),Root Mean Square Error(RMSE),Mean Absolute Error(MAE),and R2 metrics.Notably,the SMAPE metric exhibits a remarkable decline of 21.03%with the utilization of our proposed model.These results confirm that our study provides a highly accurate and valid model for taxi travel demand forecasting.
文摘Background and Objective: HIV infection is a major global Public Health threat worldwide, particularly in Sub-Saharan Africa of which Benin. The level of knowledge determines the attitudes and behaviors of the populations towards this infection. The study objective was to assess knowledge, attitudes and practices related to HIV infection among motorbike taxi drivers (MTD) in Parakou in 2021. Methods: This was a descriptive cross-sectional study targeting MTD in Parakou in 2021. Participants were selected by cluster sampling. Pretested Digitized questionnaire using KoboCollect<sup>@</sup> applicationserved as a data collection tool. Knowledge, attitudes and practices variable were treated on a score scale. A knowledge score was considered to reflect a good knowledge of HIV if at least two-thirds of the knowledge statements had been correctly answered provided the subject recognized the sexual route as one of modes of HIV transmission, identified at least one preventive measure and meant the incurability of the disease. Quantitative and qualitative variables were appropriately described using the EPI Info 7.1.3.3 software. The participant was classified at positive attitude/practice for HIV prevention, when it has a score of at least 80% and suggests a good preventive measure face a risk of exposure to HIV. Results: A total of 374 subjects were recruited into the study. The mean age was 31.51 ± 7.76 years. Most participants (86.06%) had good knowledge of condom use as an HIV prevention method. The sources of information mentioned were mainly the media (77.07%), relatives or friends (63.38%), and field-workers from non-governmental organizations (37.26%). Routine HIV testing was 50.53%. Among participants, 76.10% reported at least two different sexual partners. Condom use was 59.18 % during the casual sexual intercourse. Within the client-provider relationship with female sex workers, 33.17% had had sexual intercourse with them. The sexual route was the most cited (92.99%), and 90.23% stated that HIV infection can be stabilized by medication in a health structure. Conclusion: The level of knowledge of motorbike taxi drivers in Parakou does not match their behavior with regard to HIV prevention. Appropriate strategies are needed to develop prevention skills in this population. To effectively comb at HIV, it will be necessary to strengthen the targeted HIV preventive interventions at key and bridge populations including motorbike taxi drivers in Benin.
基金The National Basic Research Program of China(973 Program)(No.2012CB725400)
文摘In order to determine the regulations of the development of taxi supply under entry regulations in Chinese cities, an improved neural network model is applied to find the particular years when the government artificially puts new taxis into the market, and then extract the political influence from the taxi supply. The model is also utilized to study the relationships between the adjusted taxi supply and non-policy factors. A case study of Nanjing city is conducted. The results show that 2001 and 2007 are the particular years that the Nanjing government artificially put new taxis into its taxi market, which is in accordance with the five-year plan of China and the local development plans. The results also show that the improved neural network model has a good performance in expositing the evolution of adjusted taxi supply related to non-policy factors.
基金Supported by the Basic Scientific Research Projects of the Central University of China(ZXH2010D010)the National Natural Science Foundation of China(60979021/F01)~~
文摘In order to ease congestion and ground delays in major hub airports, an aircraft taxiing scheduling optimization model is proposed with schedule time as the object function. In the new model, the idea of a classical job shop-schedule problem is adopted and three types of special aircraft-taxi conflicts are considered in the constraints. To solve such nondeterministic polynomial time-complex problems, the immune clonal selection algorithm（ICSA） is introduced. The simulation results in a congested hour of Beijing Capital International Airport show that, compared with the first-come-first-served（FCFS） strategy, the optimization-planning strategy reduces the total scheduling time by 13.6 min and the taxiing time per aircraft by 45.3 s, which improves the capacity of the runway and the efficiency of airport operations.
文摘Taxi trajectories from urban environments allow inferring various information about the transport service qualities and commuter dynamics.It is possible to associate starting and end points of taxi trips with requirements of individual groups of people and even social inequalities.Previous research shows that due to service restrictions,boro taxis have typical customer destination locations on selected Saturdays:many drop-off clusters appear near the restricted zone,where it is not allowed to pick up customers and only few drop-off clusters appear at complicated crossing.Detected crossings imply recent infrastructural modifications.We want to follow up on these results and add one additional group of commuters:Citi Bike users.For selected Saturdays in June 2015,we want to compare the destinations of boro taxi and Citi Bike users.This is challenging due to manifold differences between active mobility and motorized road users,and,due to the fact that station-based bike sharing services are restricted to stations.Start and end points of trips,as well as the volumes in between rely on specific numbers of bike sharing stations.Therefore,we introduce a novel spatiotemporal assigning procedure for areas of influence around static bike sharing stations for extending available computational methods.
