transportation time
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2021 ◽  
Vol 119 ◽  
pp. 107096
Author(s):  
Tiantian Luan ◽  
Mingxiao Sun ◽  
Zhanyong Hu ◽  
Qiang Fu ◽  
Hao Wang

2021 ◽  
Vol 7 (6) ◽  
pp. 6196-6206
Author(s):  
Cai Wei ◽  
Li Xiangyi ◽  
Ma Quanjun ◽  
Wei Yuanying

Objectives: The construction of high-speed railway (HSR) in China has developed rapidly in recent years, and the opening of high-speed railway has had a significant impact on the economic development of the region and has profoundly affected the development of regional enterprises. Based on the data of Chinese A-share listed companies from year 2004 to 2017, this paper examines whether the opening of high-speed railway has an impact on the degree of financialization of corporates. The results show that the opening of high-speed railway significantly boosts the financialization level of enterprises, and this effect is most obvious two years after the opening of high-speed railway, with significant regional heterogeneity and corporate ownership heterogeneity, and mainly occurs in high financing constrained enterprises and low technology enterprises. Finally, the paper proposes corresponding countermeasures in response to the research findings.


2021 ◽  
Vol 35 (5) ◽  
pp. 81-88
Author(s):  
Kyunghee Kang

This study analyzed the transportation time of 119 ambulances, private cars, and taxis to arrive at the emergency room, and estimated the factors influencing the time using individual and household characteristics and emergency statistics from the 2018 annual data of the Korea Health Panel Study (Version 1.7). Out of 2,032 cases that were analyzed, 427 cases (21.0%) were brought by 119 ambulances; 1,276 (62.8%) by private cars; and 329 cases (16.2%) by taxis. On average, the 119 ambulances took 23.14 minutes, private cars took 25.06 minutes, and taxis took 19.01 minutes to reach the emergency room. The overall average was 23.68 minutes. Moreover, the difference between urban and rural areas was a statistically significant factor influencing the time for all three methods of transport. It took approximately 7-10 minutes longer in rural areas than in urban areas. In addition, the lower the income, the longer it took in the case of private cars. If the transportation time for ambulance services is efficiently managed in terms of economic and social characteristics or regional factors, the quality of the ambulance service is expected to improve significantly.


2021 ◽  
Vol 2021 ◽  
pp. 1-18
Author(s):  
Jixiao Wu ◽  
Yinghui Wang

The containment of the COVID-19 pandemic was significantly affected by the unbalanced distribution of emergency supplies, low coordinated transport efficiency, high costs, and the inability of nonprofit organizations to handle the emergency supplies efficiently. Based on the COVID-19 experience, in this paper, we build a cloud platform for emergency supplies distribution to reduce the asymmetry of emergency logistics information, reduce the costs, and improve the efficiency of emergency supplies distribution. Our proposed method uses a genetic algorithm with the monarch scheme to optimize the urban emergency supplies distribution. The numerical results and sensitivity analysis for a sample network indicate that using the proposed platform the integrated cost in different cities are reduced by 29.01%, 28.67%, and 22.73%, the required time in different cities are reduced by 22.98%, 26.59%, and 36.65%. The results suggest that the proposed method reduces the integrated cost and transportation time and finds the optimal distribution path.


2021 ◽  
Vol 64 (2) ◽  
pp. 425-435
Author(s):  
Nikola Čobanović ◽  
Saša Novaković ◽  
Igor Tomašević ◽  
Nedjeljko Karabasil

Abstract. This study investigated the interactive effects of weather conditions, transportation time and loading density on carcass damages and meat quality traits of market-weight pigs under commercial conditions. The following pork quality parameters were measured: pH and temperature; colour; drip, thawing and cooking loss; and textural traits. Pigs were assigned to one of eight groups arranged in a 2 × 2 × 2 factorial design according to the weather conditions (hot and cold), transportation time (short and long) and loading density (high and low). A three-way ANOVA and Tukey's post-test (multiple comparisons) were performed to assess the differences between groups in examined pork quality traits. Pigs exposed to short transportation (∼ 20 min) at high loading density (0.29 m2/100kg) during hot weather conditions produced meat with the lowest initial and ultimate meat pH value and sensory colour scores, and the highest initial temperature and the occurrence of pale, soft and exudative pork. The occurrence of pale, soft and exudative pork was reduced 5-fold during hot weather conditions when pigs were exposed to longer transportation (∼ 210 min) and low loading density (0.53 m2/100kg). Pigs exposed to short transportation (∼ 20 min) at high loading density (0.41 m2/100kg) during cold weather conditions produced the highest quality pork (the highest percentage of red, firm and non-exudative pork) characterised by lowest drip loss and b∗ value and the highest sensory colour scores. The highest percentages of carcass damages were recorded in pigs exposed to both low (0.50 m2/100kg) and high (0.33 m2/100kg) loading density during long transportation (∼ 210 min) in cold weather conditions. In conclusion, weather conditions and loading density are of greater importance for the occurrence of carcass damages and pork quality variation than transportation time.


2021 ◽  
Vol 3 (4) ◽  
pp. 343-352
Author(s):  
Muhammad Noval Alfarizi ◽  
Mariah Nur Azizah ◽  
Wikara Dwi Saputra ◽  
Siti Ernawati

The location of the photo prewedding is a place that can describe the happiness of the bride and groom. In these conditions sometimes the general public especially prospective bride and groom and the photographer have difficulty in choosing the location of the photo prewedding best. Then the resulting decision-makers will get the location of the photo prewedding which is not in accordance with what is expected. In this study utilizes the Method of Analytical Hierarchy Process (AHP) to help the bride and groom and the photographer in choosing the location of the photo prewedding best, especially in the area of Jakarta. This study using six criteria such as distance, number of spots, transportation, time, cost, location, and theme. From the Results of the analysis and processing of the data obtained that the Ancol with superior value 0,224047721 (22%) berbandingan to cafe batavia with a value of 0,195494507 (20%), sunda kelapa harbor to the value 0,187335550 (19%), taman wisata mangrove angke kapuk with a value of 0,171584976 (17%), old city, with the value of 0,162696386 (16%), and glodok, with a value of 0,058840858 (6%).


2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Hui Zhang ◽  
Yao Li ◽  
Qingpeng Zhang ◽  
Dingjun Chen

The advantage of multimodal transport is that it can deliver the goods to their destination in a reasonable combination of transport modes while ensuring security and punctuality. Multimodal transportation can effectively reduce logistics costs, improve logistics efficiency, and reduce environmental pollution. In the process of multimodal transportation, due to the interference of natural factors (weather, terrain, etc.) and some special human factors, it may have different degrees of impact on the transportation time and transportation safety of different transportation modes. Therefore, when choosing a transportation method, it is necessary to consider the transportation time and transportation safety under the interference. However, the current research on multimodal transport has not considered the impact of external interference on transportation time and transportation safety. Compared with other modes of transportation, external interference has a relatively small impact on railway transportation. Railways can safely deliver goods to their destinations on time. Under the background of China’s huge railway network and advanced heavy-duty technology, this paper establishes a multimodal transport route selection model for considering railway as the core, introduces time penalty cost and damage compensation cost, and takes the lowest comprehensive transportation cost as the model objective under the premise of considering transportation reliability and transportation safety. Finally, taking a multimodal transport network in China as an example, an improved ant colony algorithm is used to solve the model and the results verify the rationality of the model.


Medicine ◽  
2021 ◽  
Vol 100 (27) ◽  
pp. e26569
Author(s):  
Ji Young Jang ◽  
Woo-Keun Kwon ◽  
Haewon Roh ◽  
Jong Ha Moon ◽  
Jun Seong Hwang ◽  
...  

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