期刊文献+
共找到81,740篇文章
< 1 2 250 >
每页显示 20 50 100
The coordinated development of cross-border e-commerce and cross-border logistics research
1
作者 BAI Zhezhe 《International English Education Research》 2016年第4期10-12,共3页
The cross-border e-commerce further development, its development is facing more and more challenges and bottlenecks. Among them, the development of cross-border logistics is a key factor restricting the development of... The cross-border e-commerce further development, its development is facing more and more challenges and bottlenecks. Among them, the development of cross-border logistics is a key factor restricting the development of cross-border e-commerce. Due to cross-border logistics development lags behind the cross-border e-commerce, caused many not coordinated between them Article analyzes the current cross-border e-commerce and cross-border logistics synergy development research present situation. Combined with cross-border e-commerce with cross-border logistics development present situation and the bottleneck problem, by means of literature data collection and investigation, the cross-border e-commerce with cross-border emphatically analyzed the present situation an-d problems of the coordinated development of logistics. Series and put forward the improvement measures, to promote the coordinated development of cross-border e-commerce and cross-border logistics and subsequent research has import-ant significance. 展开更多
关键词 cross-border Electronic Commerce cross-border logistics Synergism Development
在线阅读 下载PDF
A Comprehensive Measurement Study Analyzing Cross-Border Logistics in Harbin New District
2
作者 Yan Wang Xian-Ping Shi 《Proceedings of Business and Economic Studies》 2023年第6期145-152,共8页
The business environment is an important index for measuring the international competitiveness of a country or region.Improving the business environment not only helps the logistics industry reduce costs and increase ... The business environment is an important index for measuring the international competitiveness of a country or region.Improving the business environment not only helps the logistics industry reduce costs and increase efficiency but also promotes the transformation and upgrading of the logistics sector.This paper focuses on the business environment of cross-border logistics enterprises in Harbin New District as the research object.It constructs the business environment index system of logistics enterprises in Harbin New District through empirical research using the subjective weighting method.The research data are then analyzed to identify the shortcomings in optimizing the business environment of cross-border logistics in Harbin New District.The paper proposes countermeasures and suggestions,aiming to provide a decision-making reference for promoting the high-quality development and all-round revitalization of Harbin New District. 展开更多
关键词 Harbin New District cross-border logistics Measurement of business environment Index system
在线阅读 下载PDF
A Study on Establishing a Cross-border E-commerce Logistics System for Agricultural Products in Sichuan Province in the Context of the Belt and Road Initiative
3
作者 You Jing Chen Haonan 《Contemporary Social Sciences》 2021年第5期13-28,共16页
The rapid development of cross-border e-commerce,especially since Chengdu was listed as an Integrated Pilot Zone for Cross-Border E-Commerce in 2016,has led to a rising trade value of agricultural products in the metr... The rapid development of cross-border e-commerce,especially since Chengdu was listed as an Integrated Pilot Zone for Cross-Border E-Commerce in 2016,has led to a rising trade value of agricultural products in the metropolis.This upward trend is also attributed to the China-Europe Railway Express and the Chengdu International Aviation Hub Integrated Functional Area,two infrastructure systems that have opened more international logistics channels for agricultural products in Sichuan province.However,the development of cross-border logistics has failed to respond to the rapid growth of cross-border e-commerce for agricultural products.This problem has given rise to longer delivery cycles,higher costs,and reduced product quality,hindering the development of cross-border e-commerce for agricultural products.Currently,most research efforts are focused on selecting a logistics mode which has created an urgency is to establish a logistics system.To that end,we must utilize the opportunities and preferential policies brought about by the Belt and Road Initiative to advance the establishment of a cross-border logistics system for agricultural products,which will create more channels for selling Sichuan’s agricultural products overseas.This article analyzes the current situation of the cross-border logistics system for agricultural products produced by the province and studies the potential relationships between a logistics system and cross-border trade of agricultural products.It seeks to build a logistics system that meets the demands of cross-border transactions using economic theories focused on cross-border e-commerce and logistics.Such a logistic system will help shorten long delivery cycles,cut delivery costs,and guarantee the quality of agricultural products.Also,it can contribute to the rapid development of cross-border e-commerce of agricultural products and solve problems in developing the agricultural products logistics system of Sichuan province. 展开更多
关键词 the Belt and Road Initiative agricultural products cross-border e-commerce logistics system
在线阅读 下载PDF
Analyzing the Construction of the International Logistics Supply Chain Management Model from the Perspective of Cross-Border E-commerce
4
作者 Wei Wu 《Journal of Electronic Research and Application》 2022年第3期26-30,共5页
Cross-border e-commerce has progressively evolved with the deepening of economic globalization,and it now holds a significant place in the field of e-commerce.However,due to China’s late entry into the international ... Cross-border e-commerce has progressively evolved with the deepening of economic globalization,and it now holds a significant place in the field of e-commerce.However,due to China’s late entry into the international logistics supply chain,there are issues such as complex environment,uneven information technology,and disagreements on standards,resulting in certain cross-border e-commerce disadvantages in China.Therefore,in this context,this study analyzes the construction of international logistics supply chain management model from the perspective of cross-border e-commerce,so as to provide some reference for the development of China’s international logistics supply chain. 展开更多
关键词 cross-border e-commerce International logistics Supply chain management
在线阅读 下载PDF
Logistics Factors Affecting Cross-border Ecommerce Implementation
5
作者 Jun Chen Shiyan Xu +1 位作者 Yuxin Tian Chenyang Zhao 《经济管理学刊(中英文版)》 2020年第1期8-15,共8页
The purpose of this paper is to provide a structured literature review of cross-border e-logistics research,uncover existing gaps and opportunities,try to find practical strategies to balance logistics costs and servi... The purpose of this paper is to provide a structured literature review of cross-border e-logistics research,uncover existing gaps and opportunities,try to find practical strategies to balance logistics costs and service levels,and improve logistics efficiency and customer satisfaction for future cross-border e-logistics research.Meanwhile this paper also uses the real data to test the tradeoff between transportation and warehousing cost.In addition,regression empirical analysis is used to make up for the lack of empirical drawbacks of many articles in the field and the result can be instructive and referential for cross-border e-commerce enterprises to make decisions on weighing logistics cost and service level to improve logistics efficiency. 展开更多
关键词 E-logistics cross-border E-commerce Critical Success Factors Structured Literature Review Conceptual Framework
在线阅读 下载PDF
Research on the Influencing Factors of China's Cross-border E-commerce Exports to Countries Along the“Belt and Road” 被引量:1
6
作者 Xinhao Zhao 《Proceedings of Business and Economic Studies》 2025年第2期321-325,共5页
Cross-border e-commerce,as a new form of international trade,has shown great development potential in the context of the“Belt and Road”initiative.Based on the cross-border e-commerce export data from 2015 to 2024,th... Cross-border e-commerce,as a new form of international trade,has shown great development potential in the context of the“Belt and Road”initiative.Based on the cross-border e-commerce export data from 2015 to 2024,this paper analyzes the influencing factors of China's cross-border e-commerce exports to countries along the“Belt and Road”by constructing an econometric model.The study found that factors such as the perfection of digital infrastructure,the efficiency of logistics and transportation,the convenience of payment and settlement,and the penetration rate of consumers online shopping significantly affect the export scale of cross-border e-commerce.Institutional factors such as the development level of e-commerce platforms in countries along the route,market access thresholds,and tariff policies also play an important role.Based on the research results,suggestions are put forward to strengthen the construction of cross-border payment system,optimize the logistics distribution network,promote customs clearance facilitation,and deepen cooperation in the field of e-commerce,to provide references for promoting the development of China's crossborder e-commerce exports to countries along the“Belt and Road.” 展开更多
关键词 The Belt and Road cross-border e-commerce Export trade Influencing factor
在线阅读 下载PDF
临床-超声多因素Logistic回归模型在鉴别非弥漫型原发性甲状腺淋巴瘤与甲状腺乳头状癌中的临床价值
7
作者 张海欢 侯红梅 +2 位作者 闫荟同 李维生 李琴 《临床和实验医学杂志》 2026年第1期102-105,共4页
目的探讨临床-超声多因素Logistic回归模型在鉴别非弥漫型原发性甲状腺淋巴瘤(PTL)与甲状腺乳头状癌(PTC)中的临床价值。方法回顾性选取2022年6月至2024年11月在北京市房山区良乡医院经病理证实的35例非弥漫型PTL和80例PTC的临床及超声... 目的探讨临床-超声多因素Logistic回归模型在鉴别非弥漫型原发性甲状腺淋巴瘤(PTL)与甲状腺乳头状癌(PTC)中的临床价值。方法回顾性选取2022年6月至2024年11月在北京市房山区良乡医院经病理证实的35例非弥漫型PTL和80例PTC的临床及超声影像学资料。分析非弥漫型PTL与PTC患者的临床资料(年龄、病灶长径、性别、甲状腺不对称增大及合并桥本甲状腺炎的情况)和超声特征(病灶回声类型、线状高回声、回声均匀性、边缘、囊性变、钙化、垂直位生长、后方回声增强、血流分级及包膜侵犯)。建立多因素Logistic回归模型,绘制受试者操作特征(ROC)曲线分析临床-超声因素鉴别诊断非弥漫型PTL与PTC的临床价值。结果单因素分析显示,非弥漫型PTL患者年龄、病灶长径、甲状腺不对称增大发生率和桥本甲状腺炎发生率均高于PTC患者,差异均有统计学意义(P<0.05);二者性别构成比差异无统计学意义(P>0.05)。非弥漫型PTL在极低回声、线状高回声、后方回声增强、血流丰富方面占比均高于PTC,而在边缘不规则、钙化和包膜侵犯方面占比均低于PTC,差异均有统计学意义(P<0.05);而二者回声均匀性、囊性变和垂直位占比比较,差异均无统计学意义(P>0.05)。多因素Logistic回归分析结果显示,年龄、病灶后方回声增强、线状高回声及钙化是鉴别二者的独立因素(P<0.05)。建立的回归方程为Logistic(Y)=3.451-0.081X1+3.204X2+3.237X3-2.935X4(X1:年龄;X2:后方回声增强;X3:线状高回声;X4:钙化),RE_1 ROC曲线下面积为0.932,鉴别二者的敏感度、特异度和准确性分别是91.4%、81.2%和88.6%。结论年龄、病灶后方回声增强、线状高回声和钙化可作为鉴别诊断非弥漫型PTL与PTC的可靠指标。临床-超声多因素Logistic回归模型在鉴别非弥漫型PTL和PTC中有较好的诊断效能。 展开更多
关键词 甲状腺癌 乳头状 超声检查 logistIC模型 原发性甲状腺淋巴瘤 鉴别诊断
暂未订购
一类调制耦合logistics模型的动力学行为
8
作者 李亚男 刘娜 余志恒 《数学进展》 北大核心 2025年第3期545-570,共26页
本文主要研究了一类调制耦合logistics模型的动力学行为.我们首先运用多项式完全判别系统理论处理相关高阶半代数系统,并给出了该模型在各个不动点处的拓扑分类及其局部稳定性.其次,利用中心流形定理,我们分别给出该模型在不同非双曲情... 本文主要研究了一类调制耦合logistics模型的动力学行为.我们首先运用多项式完全判别系统理论处理相关高阶半代数系统,并给出了该模型在各个不动点处的拓扑分类及其局部稳定性.其次,利用中心流形定理,我们分别给出该模型在不同非双曲情形下不动点附近发生跨临界和超临界倍周期分岔的参数条件.此外,我们还证明了该模型具有Marotto意义下的混沌.最后,借助Maple 2023和Matlab R2019a,我们对该模型的动力学行为进行数值模拟,以进一步验证前述理论结果的正确性. 展开更多
关键词 耦合logistics模型 多项式完全判别系统 分岔 Marotto混沌
原文传递
多因素Logistic回归模型联合ROC曲线预测重症感染患者美罗培南血药浓度不达标的风险
9
作者 李淼 黄兴振 《中国处方药》 2026年第2期65-70,共6页
目的构建重症感染患者美罗培南血药浓度不达标风险的预测模型,为临床重症感染患者美罗培南的初始给药方案提供用药参考。方法选取广西某三级甲等医院2021年1月至2024年12月收治的436例疑似或确诊为脓毒血症需使用美罗培南抗感染治疗,同... 目的构建重症感染患者美罗培南血药浓度不达标风险的预测模型,为临床重症感染患者美罗培南的初始给药方案提供用药参考。方法选取广西某三级甲等医院2021年1月至2024年12月收治的436例疑似或确诊为脓毒血症需使用美罗培南抗感染治疗,同时进行血药浓度监测的住院患者作为研究对象。根据美罗培南血药浓度检测结果将患者分为达标组和未达标组,分析两组患者一般资料及临床检验指标,将差异有统计学意义的指标纳入多因素Logistic回归模型分析影响美罗培南血药浓度的因素,并构建重症感染患者美罗培南血药浓度不达标风险的预测模型,采用受试者工作特征(ROC)曲线评价该模型的预测效能。结果高龄、高Cr、低ALB及合并使用利尿剂的重症感染患者即使按常规剂量使用美罗培南,也更易出现暴露不足,需考虑个体化增量或延长输注。年龄、Cr、ALB及合并利尿剂预测重症感染患者美罗培南血药浓度不达标风险的灵敏度分别为69.20%、89.70%、58.10%和76.10%,特异度分别为65.80%、69.90%、66.50%和42.30%,曲线下面积(AUC)分别为0.718、0.858、0.655和0.592,四者联合预测的灵敏度为80.30%,特异度为83.10%,AUC为0.900,合并使用利尿剂、年龄、Cr和ALB联合预测美罗培南血药浓度不达标风险的效能优于任一指标单独预测(P<0.05)。结论年龄、Cr、ALB、合并使用利尿剂联合预测重症感染患者美罗培南血药浓度不达标风险具有较好的效能。高龄、高Cr、低ALB及合并使用利尿剂使重症患者即使按常规剂量也更易出现暴露不足,需考虑个体化增量或延长输注。 展开更多
关键词 美罗培南 血药浓度 logistIC回归 ROC曲线
暂未订购
Research on the Impact of the Construction of Cross-border E-commerce Comprehensive Pilot Zones on China’s Export Transformation and Upgrading
10
作者 Jiahui Zhao 《Proceedings of Business and Economic Studies》 2025年第6期45-52,共8页
Cross-border e-commerce has emerged as a new growth point in foreign trade.While the Dalian comprehensive pilot zone has made some progress,its development is constrained by issues such as the global economic slowdown... Cross-border e-commerce has emerged as a new growth point in foreign trade.While the Dalian comprehensive pilot zone has made some progress,its development is constrained by issues such as the global economic slowdown,the relatively small scale of cross-border e-commerce,a high concentration of export commodities,imperfect information mechanisms,and high overall costs.To address these challenges,this paper explores the importance of the construction of the Dalian comprehensive pilot zone for cross-border e-commerce to the transformation and upgrading of exports.Based on my research project,“Research on Path Optimization of Financial Support for the Development of Advanced Manufacturing Clusters in Dalian,”this paper analyzes the current challenges and limiting factors and proposes corresponding countermeasures and suggestions. 展开更多
关键词 cross-border e-commerce comprehensive pilot zone cross-border e-commerce Export transformation and upgrading Foreign trade export
在线阅读 下载PDF
Is digital transformation boosting green innovation in logistics enterprises?Evidence from listed firms in China’s logistics industry
11
作者 Jun Li Xi Chen Liang Wan 《中国科学技术大学学报》 北大核心 2025年第1期18-30,17,I0001,共15页
In the era of green logistics,digital transformation has become an effective means for the logistics industry’s high-quality development.Using listed companies in China’s logistics industry from 2010 to 2021 as the ... In the era of green logistics,digital transformation has become an effective means for the logistics industry’s high-quality development.Using listed companies in China’s logistics industry from 2010 to 2021 as the research samples,this paper conducts an empirical test on the impact of the digital transformation of logistics enterprises on their green in-novation.Specifically,enterprise digital transformation indicators are constructed through the text analysis method,and the fixed-effects model is applied for analysis.The results indicate that the digital transformation of logistics enterprises has a significant promoting effect on their green innovation;the promoting effect of the digital transformation of logistics enterprises on green innovation is primarily achieved by easing corporate financing constraints and reducing corporate en-vironmental uncertainty;and the impact of digital transformation on green innovation is geographically heterogeneous. 展开更多
关键词 DIGITALIZATION logistics enterprises green innovation
在线阅读 下载PDF
IACO优化Logistic混沌序列在无线传感器网络布局中应用
12
作者 陈静 《技术与市场》 2026年第1期33-36,共4页
为了压缩通信成本并减少传感器个数,采用蚁群算法的优化路径。标准混沌序列算法存在分簇随机的问题,为此引入混沌算子,提出一种利用改进蚁群算法(IACO)对Logistic混沌序列方法进行改进,并成功应用于无线传感器网络布局中。研究结果表明... 为了压缩通信成本并减少传感器个数,采用蚁群算法的优化路径。标准混沌序列算法存在分簇随机的问题,为此引入混沌算子,提出一种利用改进蚁群算法(IACO)对Logistic混沌序列方法进行改进,并成功应用于无线传感器网络布局中。研究结果表明:随着迭代周期的增加,通信成本降低,可有效防止出现局部最佳的现象。相比贪心算法(Greedy)与IACO方法,改进蚁群算法-最长公共子序列算法(IACO-LCS)的通信成本显著降低,达到目标收益。该研究对提高无线传感器布局优化能力具有一定的理论指导意义。 展开更多
关键词 无线传感器 布局优化 改进蚁群算法 logistIC混沌序列 搜索速度
在线阅读 下载PDF
基于CT血管造影参数的LASSO-logistic回归模型对颅内小动脉瘤破裂风险的预测价值
13
作者 程箫 刘亚辉 冉雅菲 《实用医技杂志》 2026年第1期12-16,I0004,共6页
目的探讨计算机断层扫描血管造影(CTA)参数在评估颅内小动脉瘤破裂风险中的应用价值。方法回顾性分析2022年1月至2024年12月于郑州市第二人民医院确诊的92例颅内小动脉瘤患者资料,根据患者就诊时是否伴有急性蛛网膜下腔出血的临床表现... 目的探讨计算机断层扫描血管造影(CTA)参数在评估颅内小动脉瘤破裂风险中的应用价值。方法回顾性分析2022年1月至2024年12月于郑州市第二人民医院确诊的92例颅内小动脉瘤患者资料,根据患者就诊时是否伴有急性蛛网膜下腔出血的临床表现及影像学证据,分为破裂组(28例)和未破裂组(64例)。收集患者基线资料及CTA参数,采用最小绝对收缩和选择算法(LASSO)回归筛选变量,logistic回归构建预测模型。结果单因素分析结果显示,破裂组患者在高血压病史(60.7%与37.5%;χ^(2)=4.249,P=0.039)、脑血管病家族史(21.4%与6.2%;χ^(2)=4.632,P=0.031)、血管分叉部动脉瘤(53.6%与31.2%;χ^(2)=4.117,P=0.042)、存在异常搏动点(39.3%与10.9%;χ^(2)=9.947,P=0.002)、后循环区动脉瘤(32.1%与14.1%;χ^(2)=4.046,P=0.044)、瘤高与载瘤动脉直径比(SR)值(1.71±0.29与1.52±0.30;t=2.823,P=0.006)、动脉瘤角度(67.82°±10.98°与62.78°±10.86°;t=2.041,P=0.044)及子囊存在(28.6%与10.9%;χ^(2)=4.439,P=0.035)等指标均显著高于未破裂组;破裂组受试者的瘤径比(AR)值(1.83±0.32与1.57±0.29;t=3.834,P<0.001)亦明显更高。经LASSO回归分析,筛选出9个具有预测价值的变量,包括高血压病史、脑血管病家族史、血管分叉部动脉瘤、存在异常搏动点、后循环区动脉瘤、AR值、SR值、动脉瘤角度、子囊存在。进一步logistic回归分析结果显示,后循环区动脉瘤[OR(95%CI)=2.740(1.187,6.328)]、AR值[OR(95%CI)=3.102(1.106,8.697)]、动脉瘤角度[OR(95%CI)=3.846(1.074,13.766)]及子囊存在[OR(95%CI)=3.865(1.105,13.524)]等因素与颅内小动脉破裂风险独立相关(均P<0.05)。结论颅内小动脉瘤破裂主要受后循环区动脉瘤、AR值、动脉瘤角度及子囊存在等因素的影响,LASSO-logistic回归可用于预测颅内小动脉瘤破裂风险。 展开更多
关键词 颅内动脉瘤 CT血管成像 最小绝对收缩和选择算法 logistIC回归
暂未订购
Effectiveness of Logistics Management Information System (LMIS) in Improving the Availability of Essential Medicines and Medical Supplies in Public Hospitals in Zambia: A Cross-Sectional Study
14
作者 Aubrey Kanyika Steward Mudenda +4 位作者 Victor Daka Nayuda Kaonga Chitundu Mbao Diana K. Mwaba Scott Kaba Matafwali 《Pharmacology & Pharmacy》 2025年第2期61-72,共12页
Background: The availability of essential medicines and medical supplies is crucial for effectively delivering healthcare services. In Zambia, the Logistics Management Information System (LMIS) is a key tool for manag... Background: The availability of essential medicines and medical supplies is crucial for effectively delivering healthcare services. In Zambia, the Logistics Management Information System (LMIS) is a key tool for managing the supply chain of these commodities. This study aimed to evaluate the effectiveness of LMIS in ensuring the availability of essential medicines and medical supplies in public hospitals in the Copperbelt Province of Zambia. Materials and Methods: From February to April 2022, a cross-sectional study was conducted in 12 public hospitals across the Copperbelt Province. Data were collected using structured questionnaires, checklists, and stock control cards. The study assessed LMIS availability, training, and knowledge among pharmacy personnel, as well as data accuracy, product availability, and order fill rates. Descriptive statistics were used to analyse the data. Results: All surveyed hospitals had LMIS implemented and were using eLMIS as the primary LMIS. Only 47% and 48% of pharmacy personnel received training in eLMIS and Essential Medicines Logistics Improvement Program (EMLIP), respectively. Most personnel demonstrated good knowledge of LMIS, with 77.7% able to log in to eLMIS Facility Edition, 76.6% able to locate stock control cards in the system, and 78.7% able to perform transactions. However, data accuracy from physical and electronic records varied from 0% to 60%, and product availability ranged from 50% to 80%. Order fill rates from Zambia Medicines and Medical Supplies Agency (ZAMMSA) were consistently below 30%. Discrepancies were observed between physical stock counts and eLMIS records. Conclusion: This study found that most hospitals in the Copperbelt Province of Zambia have implemented LMIS use. While LMIS implementation is high in the Copperbelt Province of Zambia, challenges such as low training levels, data inaccuracies, low product availability, and order fill rates persist. Addressing these issues requires a comprehensive approach, including capacity building, data quality improvement, supply chain coordination, and investment in infrastructure and human resources. Strengthening LMIS effectiveness is crucial for improving healthcare delivery and patient outcomes in Zambia. 展开更多
关键词 logistics Management Information System Essential Medicines Medical Supplies Supply Chain Management Zambia
在线阅读 下载PDF
Data Sovereignty Construction in International Trade Agreements:Causes,Models,and China’s Choices-Based on the Study of Cross-border Data Flow Rules
15
作者 ZHANG Qianwen 《The Journal of Human Rights》 2025年第3期589-614,共26页
The Fourth Industrial Revolution has endowed the concept of state sovereignty with new era-specific connotations,leading to the emergence of the theory of data sovereignty.While countries refine their domestic legisla... The Fourth Industrial Revolution has endowed the concept of state sovereignty with new era-specific connotations,leading to the emergence of the theory of data sovereignty.While countries refine their domestic legislation to establish their data sovereignty,they are also actively engaging in the negotiation of cross-border data flow rules within international trade agreements to construct data sovereignty.During these negotiations,countries express differing regulatory claims,with some focusing on safeguarding sovereignty and protecting human rights,some prioritizing economic promotion and security assurance,and others targeting traditional and innovative digital trade barriers.These varied approaches reflect the tension between three pairs of values:collectivism and individualism,freedom and security,and tradition and innovation.Based on their distinct value pursuits,three representative models of data sovereignty construction have emerged globally.At the current juncture,when international rules for digital trade are still in their nascent stages,China should timely establish its data sovereignty rules,actively participate in global data sovereignty competition,and balance its sovereignty interests with other interests.Specifically,China should explore the scope of system-acceptable digital trade barriers through free trade zones;integrate domestic and international legal frameworks to ensure the alignment of China’s data governance legislation with its obligations under international trade agreements;and use the development of the“Digital Silk Road”as a starting point to prioritize the formation of digital trade rules with countries participating in the Belt and Road Initiative,promoting the Chinese solutions internationally. 展开更多
关键词 data sovereignty cross-border data flow international trade agreements digital trade rules
原文传递
Bridging Emissions to Solutions: Enhancing Environmental Preservation through Green Inbound and Outbound Logistics
16
作者 Apeksha Garg Sudha Vemaraju Marri Madhavi 《Journal of Environmental & Earth Sciences》 2025年第6期280-292,共13页
Logistics service providers significantly contribute to environmental degradation through improper waste disposal,hazardous packaging materials,excessive fuel consumption,and emissions.This study examines the impact o... Logistics service providers significantly contribute to environmental degradation through improper waste disposal,hazardous packaging materials,excessive fuel consumption,and emissions.This study examines the impact of green in-bound logistics and green outbound logistics on environmental,economic,and social performance of logistics companies using survey data from 221 Vietnamese logistics firms.Statistical analysis using Structural Equation Modeling revealed that green inbound logistics positively influences environmental and social performance while moderately affecting eco-nomic outcomes.In contrast,green outbound logistics demonstrates stronger effects on economic and environmental performance but exhibits limited impact on social dimensions.The measurement model showed strong reliability and validity(Cronbach's Alpha>0.70,robust Composite Reliability and Average Variance Extracted values),with excellent fit indices(Chi-Square/df=1.681,GFI=0.898,TLI=0.945,CFI=0.956,RMSEA=0.056).These findings highlight important distinctions between inbound and outbound green logistics impacts,offering valuable insights for an industry with currently low adoption rates of sustainable practices.The research demonstrates that implementing green logistics enhances both environmental preservation and business performance,providing compelling evidence for companies to accelerate their sustainability transition.By understanding these differential impacts,logistics firms can develop more tar-geted and effective sustainability strategies that optimize triple bottom line outcomes. 展开更多
关键词 Green logistics Environmental Performance Social Performance logistics Firms IGL OGL Carbon Emissions Energy Efficiency
在线阅读 下载PDF
Research the Safety Specialties for the Container Shipping Logistics Networks of China
17
作者 Di Cui 《Journal of Traffic and Transportation Engineering》 2025年第2期62-65,共4页
Structural properties of the ship container logistics network of China(SCLNC)are studied in the light of recent investigations of complex networks.SCLNC is composed of a set of routes and ports located along the sea o... Structural properties of the ship container logistics network of China(SCLNC)are studied in the light of recent investigations of complex networks.SCLNC is composed of a set of routes and ports located along the sea or river.Network properties including the degree distribution,degree correlations,clustering,shortest path length,centrality and betweenness are studied in different definition of network topology.It is found that geographical constraint plays an important role in the network topology of SCLNC.We also study the traffic flow of SCLNC based on the weighted network representation,and demonstrate the weight distribution can be described by power law or exponential function depending on the assumed definition of network topology.Other features related to SCLNC are also investigated. 展开更多
关键词 logistics networks ship container logistics networks the safety characters
在线阅读 下载PDF
Logistics Engineering Management in the Platform Supply Chain: An Overview from Logistics Service Strategy Selection Perspective
18
作者 Lin Chen Ting Dong +1 位作者 Xiang Li Xiaofeng Xu 《Engineering》 2025年第4期236-249,共14页
With the accelerated expansion of the platform economy,the supply chain has evolved into a new stage of the platform supply chain(PSC),which is deeply integrated with the platform economy.Logistics engineering managem... With the accelerated expansion of the platform economy,the supply chain has evolved into a new stage of the platform supply chain(PSC),which is deeply integrated with the platform economy.Logistics engineering management plays a crucial role in ensuring the efficient operation of PSCs and contributes to the construction of a global economic system.Given its importance to the efficiency of PSCs,the choice of logistics service strategy in logistics engineering management has attracted considerable scholarly attention.However,the current research is fragmented and lacks systematic analysis and synthesis.This paper provides a comprehensive overview of logistics engineering management in PSCs from the perspective of logistics service strategy selection from January 2005 to September 2024.To this end,we first review the research related to self-built logistics(SBL)and third-party logistics(3PL)in PSCs due to the complete independence of these two logistics service strategies.The results show that the following two topics are of great interest to researchers.One is the choice of the optimal logistics service strategy for the members of PSCs,while the other is the impact of factors related to logistics services on PSCs,including the channel selection,platform entry,sales model,and so forth.Next,we summarize the determinants influencing the choice between SBL and 3PL for the members of PSCs.The results indicate that the influencing factors are the service cost and service level,followed by the channel,brand,market potential,and competition.Then,on the basis of the themes of logistics service sharing(LSS),we review the research on LSS in PSCs,as LSS often emerges as an innovative model after a certain stage of development in SBL and 3PL.We find that LSS is regarded as an important complement to SBL and 3PL,with key research hotspots,including the channel,partner selection,and service competition.Service cost is a major factor influencing LSS,with competition,consumers'logistics preference,and market potential being secondary factors.Finally,this paper outlines several important and promising directions for future research.This paper has important management implications for building a modern logistics system and promoting the transformation of PSCs. 展开更多
关键词 logistics engineering management Platform supply chain logistics service strategy Bibliometric analysis Literature review
在线阅读 下载PDF
Ecological Dynamics of a Logistic Population Model with Impulsive Age-selective Harvesting
19
作者 DAI Xiangjun JIAO Jianjun 《应用数学》 北大核心 2026年第1期72-79,共8页
In this paper,we establish and study a single-species logistic model with impulsive age-selective harvesting.First,we prove the ultimate boundedness of the solutions of the system.Then,we obtain conditions for the asy... In this paper,we establish and study a single-species logistic model with impulsive age-selective harvesting.First,we prove the ultimate boundedness of the solutions of the system.Then,we obtain conditions for the asymptotic stability of the trivial solution and the positive periodic solution.Finally,numerical simulations are presented to validate our results.Our results show that age-selective harvesting is more conducive to sustainable population survival than non-age-selective harvesting. 展开更多
关键词 The logistic population model Selective harvesting Asymptotic stability EXTINCTION
在线阅读 下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部