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The Climate Impact of Large-Scale Distributors:Acting on the Supply Chain
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作者 Daniele Pernigotti Arianna Bertoni 《Journal of Environmental Science and Engineering(A)》 2023年第2期53-58,共6页
This work aims to analyse the actions that companies working in large-scale distribution carry along their value chains to minimise impacts on climate change.Companies operating in this field are aware that it is less... This work aims to analyse the actions that companies working in large-scale distribution carry along their value chains to minimise impacts on climate change.Companies operating in this field are aware that it is less effective to act directly on the core processes and need to involve the upstream value chain in their carbon reduction strategy.These businesses,in fact,need to focus on the indirect GHG(Greenhouse Gases)emissions and depend on how suppliers manage their impacts.In this sector,virtuous companies collaborate with their suppliers to get involved in a common path of quantifying and cutting said impacts together.This aspect is particularly relevant in the case of large-scale retailers.However,the process is not immediate since the supply chain is usually very dense and diverse,for instance,adopting various approaches that do not always coincide.In any case,the key aspect is mapping these suppliers:one of the tools mostly used for this purpose is the survey,as a quick instrument able to reach hundreds of suppliers at the same time,receiving a fast and standardized response,which can easily be processed to form a comprehensive and harmonized mapping of the results as the first step for the subsequent implementation of mitigation strategies. 展开更多
关键词 Climate change suppliers value chain SUSTAINABILITY large-scale distribution.
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Research on Strategies to Promote the Integration of Industrial Chain,Innovation Chain,and Supply Chain in the Beijing-Tianjin-Hebei Region
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作者 Chengguo E Ahui Mao +2 位作者 Xiuyan Huang Lian Lian Kun Yi 《Proceedings of Business and Economic Studies》 2024年第4期166-171,共6页
With the rapid development of international economic integration,industrial competition has gradually evolved from a competition of enterprise capabilities and resources to a game of comprehensive system collaboration... With the rapid development of international economic integration,industrial competition has gradually evolved from a competition of enterprise capabilities and resources to a game of comprehensive system collaboration capabilities among all participating parties.That is,the competition in the current international economy has evolved into an interactive and collaborative competition among the“three chains”of industry chain,capital chain,and innovation chain.Based on analyzing the current situation of the integration of the industrial chain,innovation chain,and supply chain,this article deeply analyzes the geographical advantages of the three chains in the Beijing-Tianjin-Hebei region.From the perspective of scientific and technological innovation and talent cooperation synergy,it proposes the integration strategy of the three chains in the Beijing-Tianjin-Hebei region. 展开更多
关键词 Industrial chain Innovation chain Supply chain BEIJING-TIANJIN-HEBEI Spatial distribution
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Quantitative studies of the regular distribution pattern for Salmonella enteritidis in the internal organs of mice after oral challenge by a specific real-time polymerase chain reaction 被引量:7
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作者 Shu-Xuan Deng An-Chun Cheng +5 位作者 Ming-Shu Wang Ping Cao Bin Yan Nian-Chun Yin Sheng-Yan Cao Zhen-Hua Zhang 《World Journal of Gastroenterology》 SCIE CAS CSCD 2008年第5期782-789,共8页
AIM: To identify and understand the regular distribution pattern for Salmonella enteritidis (S. enteritidis) in the internal organs of mice after an oral challenge over a 3 wk period. METHODS: Assays based on the ... AIM: To identify and understand the regular distribution pattern for Salmonella enteritidis (S. enteritidis) in the internal organs of mice after an oral challenge over a 3 wk period. METHODS: Assays based on the serovar-specific DNA sequence of S. enteritidis from GenBank, and a serovar-specific real-time, fluorescence-based quantitative polymerase chain reaction (FQ-PCR) were developed for the detection of S. enteritidis. We used this assay to detect genomic DNA of S. enteritidis in the blood and the internal organs, including heart, liver, spleen, kidney, pancreas, and gallbladder, from mice after oral challenge at different time points respectively.RESULTS: The results showed that the spleen was positive at 12 h post inoculation (PI), and the blood was at 14 h PI. The organism was detected in the liver and heart at 16 h PI, the pancreas was positive at 20 h PI, and the final organs to show positive results were the kidney and gallbladder at 22 h PI. The copy number of S. enteritidis DNA in each tissue reached a peak at 24-36 h PI, with the liver and spleen containing high concentrations of S. enteritidis, whereas the blood, heart, kidney, pancreas, and gallbladder had low concentrations. S. enteritidis populations began to decrease and were not detectable at 3 d PI, but were still present up to 12 d PI in the gallbladder, 2 wk for the liver, and 3 wk for the spleen without causing apparent symptoms.CONCLUSION: The results provided significant data for understanding the life cycle of S. enteritidis in the internal organs, and showed that the liver and spleen may be the primary sites for setting itself up as a commensa over a long time after oral challenge. Interestingly, it may be the first time reported that the gallbladder is a site of carriage for S. enteritidis over a 12 d period. This study will help to understand the mechanisms of action of S. enteriCdis infection in vivo. 展开更多
关键词 Fluorescence-based quantitative polymerase chain reaction Internal organs Salmonella enteritidis Regular distribution pattern
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Molar Mass Distribution and Chain Conformation of Polysaccharides from Fortunella margarita(Lour.) Swingle 被引量:3
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作者 曾红亮 张怡 +1 位作者 刘骏 郑宝东 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2014年第8期1245-1252,共8页
In order to study the effects of different extraction methods on the molar mass distribution and chain conformation of Fortunella margarita (Lour.) Swingle polysaccharides (FP), we used extraction by hot water (... In order to study the effects of different extraction methods on the molar mass distribution and chain conformation of Fortunella margarita (Lour.) Swingle polysaccharides (FP), we used extraction by hot water (WFP), ultrasonic-assisted treatment (UFP), microwave-assisted treatment (MFP) and ultrasonic/microwave-assisted treatment (UMFP), and then Fourier transform infrared (FT-IR) spectroscopy as well as 1H and 13C nuclear magnetic resonance (NMR) spectroscopy to characterize the structural properties of FP extracted. The molar weight (Mw), polydispersity index (Mw/Mn), root-mean-square (RMS) turning radius (Rg), molar mass distribution and chain conformation of FP were studied systematically using size-exclusion chromatography (SEC), multi-angle laser light-scattering (MALLS) and refractive index (RI). WFP, UFP, MFP and UMFP are all typical carbohydrates according to 1H NMR, laC NMR and FT-IR measurements. The type of glycosidic linkage is mainly a fl-glycosidic bond with a small amount of a-glycosidic bond. The results obtained by the SEC-MALLS-RI system showed the molar masses of WFP and UMFP were distributed mainly in the range of 5.0x10^6-1.0x10^7 g-mo1-1 and they accounted for 57.80% and 56.84% of total FP, respectively. The molar masses of UFP and MFP were distributed mainly in the 1.0x10^6-5.0x10^6 g.mol-1 range, which accounted for 38.24% and 52.39% of FP, respectively. WFP and UMFP in water were uniform spherical polymers; UFP and MFP were typical highly branched polymers and the degree of branching for MFP was higher compared to UFP. These results indicated the ultrasonic- and microwave-assisted extraction methods caused a significant decrease of the molar mass of FP but the ultrasonic/microwave synergistic extraction method had no effect. 展开更多
关键词 Fortunella margarita (Lour.) Swingle polysaccharides molar mass distribution chain conformation
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Improved Attribute Chain Sampling Plan for Darna Distribution 被引量:1
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作者 Harsh Tripathi Amer Ibrahim Al-Omari +1 位作者 Mahendra Saha Ayed R.A.Alanzi 《Computer Systems Science & Engineering》 SCIE EI 2021年第9期381-392,共12页
Recently,the Darna distribution has been introduced as a new lifetime distribution.The two-parameter Darna distribution represents is a mixture of two well-known gamma and exponential distributions.A manufacturer or a... Recently,the Darna distribution has been introduced as a new lifetime distribution.The two-parameter Darna distribution represents is a mixture of two well-known gamma and exponential distributions.A manufacturer or an engineer of products conducts life testing to examine whether the quality level of products meets the customer’s requirements,such as reliability or the minimum lifetime.In this article,an attribute modified chain sampling inspection plan based on the time truncated life test is proposed for items whose lifetime follows the Darna distribution.The plan parameters,including the sample size,the acceptance number,and the past lot result of the proposed sampling plan,are determined with the help of the two-point approach considering the acceptable quality level(AQL)and the limiting quality level(LQL).The plan parameters and the corresponding operating characteristic functions of a new plan are provided in tabular form for various Darna distribution parameters.Also,a few illustrated examples are presented for various distribution parameters.The usefulness of the proposed attribute modified chain sampling plan is investigated using two real failure time datasets.The results indicate that the proposed sampling plan can reduce the sample size when the termination ratio increases for fixed values of the producer’s risk and acceptance number.Hence,the proposed attribute modified chain sampling inspection plan is recommended to practitioners in the field. 展开更多
关键词 Attribute chain sampling inspection plan consumer’s risk Darna distribution operating characteristic curve producer’s risk truncated life test
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THE SPATIAL DISTRIBUTION AND MOMENTS OF CIRCULAR FREELY JOINTED CHAIN
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作者 郝鸣鸿 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 1991年第2期101-107,共7页
The spatial distribution function and second moments of circular freely jointed chain are derived based on an analytical method. The circular Gauss chain, which is simple for long chains, is compared with the circular... The spatial distribution function and second moments of circular freely jointed chain are derived based on an analytical method. The circular Gauss chain, which is simple for long chains, is compared with the circular freely jointed chain, which is exact for short chains. It is shown that the Gauss chain model predicts a more compact configurational distribution than the exact freely jointed chain. The two chain models, however, become closer to each other when the chain length increases. It is found that the difference of the mean square radius of gyration calculated with these two chain models is a constant, independent of the chain length. 展开更多
关键词 Freely Jointed chain Gauss chain Spatial distribution
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Differences in Starch Chain Length Distribution and Structure Characteristics of Early-Indica Rice Under Different Temperature Treatments During Grain-Filling
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作者 ZHONGLian-jin CHENGFang-min +1 位作者 ZHANGGuo-ping SUNZong-xiu 《Agricultural Sciences in China》 CAS CSCD 2005年第1期21-25,共5页
Effects of temperature during grain-filling on chain length distribution and structure characteristics of 4 early-seasonindica rice cultivars were investigated under the environment-controlled conditions. The plants a... Effects of temperature during grain-filling on chain length distribution and structure characteristics of 4 early-seasonindica rice cultivars were investigated under the environment-controlled conditions. The plants at flowering stage weresubjected to two temperature treatments until maturity (the mean dairy air temperature, 22 and 32C for optimum temperaturetreatment and high temperature treatment, respectively). The result showed that high temperature during grain-fillingsignificantly decreased the long B-chain content and increased the intermediate B-chain content. But the effect of hightemperature on other starch chains appeared to be cultivar-dependant. The crystalline characteristics of rice starch werealso affected by temperature during grain-filling. The intensity at 18 2q of X-ray diffraction pattern of rice samples underhigh temperature was higher than those under optimum temperature, though all rice starches performed A-crystallinetype. Moreover, the intensity at 18 2q was positive correlation with intermediate B-chain content and negative correlationwith long B-chain content. 展开更多
关键词 Rice (Oryza sativa L.) Temperature STARCH chain length distribution Crystalline structure
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The Distribution of Benefits for Players in Agricultural Industrial Chain
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作者 Wanming LI Huibo SUN 《Asian Agricultural Research》 2015年第1期9-12,共4页
Players of the agricultural industrial chain pursue their own profit maximization,which can lead to conflicts of interest and affect the stability of the industrial chain. Therefore,fair and reasonable profit allocati... Players of the agricultural industrial chain pursue their own profit maximization,which can lead to conflicts of interest and affect the stability of the industrial chain. Therefore,fair and reasonable profit allocation mechanism is the key to guaranteeing the development and strengthening the strategic alliance relationship between participate members. Shapley model is an effective method to solve the profit distribution in cooperative relations. But it does not consider the three factors: risks faced by players during the operation of the agricultural industrial chain,technology innovation ability,and the degree of participating in the cooperation. So,correction factors are introduced to modify the Shapley value model,in order to make the distribution of benefits more equitable and reasonable,and effectively guide practice. 展开更多
关键词 AGRICULTURAL INDUSTRIAL chain Players distributION
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The Homotopic Probability Distribution and the Partition Function for the Entangled System Around a Ribbon Segment Chain
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作者 QIAN Shang-Wu GU Zhi-Yu 《Communications in Theoretical Physics》 SCIE CAS CSCD 2001年第12期691-694,共4页
Using the Feynman's path integral with topological constraints arising from the presence of one singular line, we find the homotopic probability distribution PnL for the winding number n and the partition function... Using the Feynman's path integral with topological constraints arising from the presence of one singular line, we find the homotopic probability distribution PnL for the winding number n and the partition function PL of the entangled system around a ribbon segment chain. We find that when the width of the ribbon segment chain 2a increases,the partition function exponentially decreases, whereas the free energy increases an amount, which is proportional to the square of the width. When the width tends to zero we obtain the same results as those of a single chain with one singular point. 展开更多
关键词 Feynman's path integral with TOPOLOGICAL constraints homotopic probability distribution parti tion function ENTANGLED system around a RIBBON SEGMENT chain
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Dynamic Monte Carlo study on the probability distribution functions of tail-like polymer chain
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作者 陈英才 罗孟波 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 SCIE EI CAS CSCD 2005年第11期1130-1134,共5页
The configurational properties of tail-like polymer chains with one end attached to a flat surface are studied by using dynamic Monte Carlo technique. We find that the probability distribution of the free end in z dir... The configurational properties of tail-like polymer chains with one end attached to a flat surface are studied by using dynamic Monte Carlo technique. We find that the probability distribution of the free end in z direction P(Rz) and the density profile p(z) can be scaled approximately by a factor β to be a length independent function for both random walking (RW) and self-avoiding walking (SAW) tail-like chains, where the factor β is related to the mean square end-to-end distance 〈RE〉. The scaled P(Rz) of the SAW chain roughly overlaps that of the RW chain, but the scaled p(z) of the SAW chain locates at smaller βz than that of the RW chain. 展开更多
关键词 Probability distribution Monte Carlo simulation Tail-like polymer chain
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Spatial Distributions and Potential Sources of Long Chain(C_(30),C_(32)1,15-)Alkyl Diols in Surface Sediments from Eastern China Marginal Seas
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作者 YU Meng ZHANG Hailong +1 位作者 LI Li ZHAO Meixun 《Journal of Ocean University of China》 SCIE CAS CSCD 2018年第5期1114-1122,共9页
Long chain alkyl diols have shown important potential for the reconstruction of sea surface temperature,productivities and upwelling conditions in marine or lacustrine environments.However,little is known about the di... Long chain alkyl diols have shown important potential for the reconstruction of sea surface temperature,productivities and upwelling conditions in marine or lacustrine environments.However,little is known about the distribution and sources of the diols in eastern China marginal seas(CMS),which are areas of important organic carbon sink.Here the contents of C_(30) and C_(32)1,15-diols were analyzed in 181 surface sediments from eastern CMS.The similar distribution pattern and strong linear correlation between C_(30) and C_(32) diols indicated that they had similar biological source,with a dominance of C_(30) diol.Their contents ranged from 7-2726 ng g^(-1) for C_(30) diol and 5-669 ng g^(-1) for C_(32) diol,and both showed higher values mainly in the mud area of the Yellow Sea,while the TOC normalized contents showed a more obvious seaward increasing trend.The similar distribution pattern and significant positive correlation between diols and the other marine biomarkers(brassicasterol,dinosterol,C_(37) alkenones) indicated C_(30) and C_(32) diols in eastern CMS were mainly from marine algae.This conclusion was also supported by principal component analysis(PCA).Our results also showed that sediment diol contents were generally related to marine productivity,suggesting that diols could be applied for marine productivity reconstruction in eastern CMS. 展开更多
关键词 long chain alkyl diols spatial distribution eastern China marginal seas marine biomarkers
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On Deciding Sustainable Distribution Center of a Supply Chain
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作者 Ronsen Purba Herman Mawengkang 《Journal of Mathematics and System Science》 2013年第9期454-462,共9页
A supply chain is a network that performs the procurement of raw material, the transportation of raw material to intermediate and end products, and the distribution of end products to retailers or customers. Installat... A supply chain is a network that performs the procurement of raw material, the transportation of raw material to intermediate and end products, and the distribution of end products to retailers or customers. Installation and operation of distribution centers and all downstream members play a vital role in fulfilling the customers demand and have a great impact for supply chain management performance. In this paper we address a new approach for solving a supply chain optimization model to decide distribution centers based on environmental consideration. 展开更多
关键词 Supply chain distribution center SUSTAINABILITY MINLP MODELING
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Research on Optimizing the Distribution Path of Agricultural Cold Chain Logistics in Green Consumption Era
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作者 Li Zhang 《电子商务学刊(中英文版)》 2019年第1期13-17,共5页
In recent years, with the rapid development of China's fresh market, cold chain logistics ushered in a new development opportunity. Because of the late start and slow development of cold chain logistics in China, ... In recent years, with the rapid development of China's fresh market, cold chain logistics ushered in a new development opportunity. Because of the late start and slow development of cold chain logistics in China, it is difficult to achieve cross-regional and offseason sales activities, resulting in a situation of high output and small sales volume, which is also an important reason for the high price and poor quality of fresh agricultural products. With the passage of time, the characteristics of cold chain distribution of agricultural products have become an important direction for the future development of logistics industry. In this paper, aiming at the characteristics of agricultural cold chain distribution, the carbon emissions in the process of distribution were quantified as costs and added to the total cost, and an optimization model of agricultural cold chain logistics path with time window considering the minimum total cost as the objective function was constructed. The improved genetic algorithm was used to solve the problem. The simulation results show that the improved genetic algorithm is an effective method to solve the optimization problem of agricultural cold-chain logistics path considering carbon emissions, and has guiding significance for the selection of low-carbon and environmentally friendly distribution routes for agricultural cold-chain logistics distribution enterprises. 展开更多
关键词 Cold chain LOGISTICS FRESH AGRICULTURAL Products distribution ROUTE Optimization COST-SAVING Method
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Study On Benefit Distribution of Improved Shapley Value in Fresh Agricultural Cold Chain
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作者 Jiayi Ge Gengjun Gao 《Journal of Business Administration Research》 2020年第4期16-23,共8页
This article studies the problem of fresh agricultural cold chain and constructs a comprehensive benefit distribution model with improved Shapley value.First of all,this article considers the influence of input factor... This article studies the problem of fresh agricultural cold chain and constructs a comprehensive benefit distribution model with improved Shapley value.First of all,this article considers the influence of input factors,risk factors,effort level on benefit distribution,and uses the entropy method,the order relationship analysis method to determine the benefit distribution coefficient under each influence factor.Then,this article establishes a comprehensive benefit distribution model,and uses the Topsis method to calculate the weight of each participating enterprise.Finally,the simulation result shows the feasibility and effectiveness of the proposed methods.The profit distribution model in this article takes into account the degree of contribution to participating enterprises to the cooperation and their satisfaction with the benefits distribution,solves the problem of unfair benefits distribution of the fresh agricultural cold chain,and thus promotes the stability of the cooperation among participating enterprises. 展开更多
关键词 Fresh agricultural Cold chain Shapley Benefit distribution
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The Mechanism Research of Green Supply Chain Synergy Profit Distribution Based on the Shapley Value Method
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作者 CHU Liqin LI Bo 《International English Education Research》 2016年第12期15-17,共3页
Under green supply chain mode, how to Carry out the distribution of profits between subjects is an important problem. Through the comparison of the green supply chain benefit allocation of non-cooperative game and coo... Under green supply chain mode, how to Carry out the distribution of profits between subjects is an important problem. Through the comparison of the green supply chain benefit allocation of non-cooperative game and cooperative game the payoffmatrix, it is clearly that the necessity of interest distribution cooperative game. Put general manufacturing enterprises of green supply chain as the research object, using Shapley value method for theory analysis and example verification, vertifys that enterprise synergy gains more than their own separate management, and puts forward a feasible path of supply chain collaboration through the construction of the distribution of interests coordination model. 展开更多
关键词 Green supply chain Profit distribution synergy Shapley value mode
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Distribution of First Passage Times for Lumped States in Markov Chains
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作者 Murat Gul Salih Celebioglu 《Journal of Mathematics and System Science》 2015年第8期315-329,共15页
First passage time in Markov chains is defined as the first time that a chain passes a specified state or lumped states. This state or lumped states may indicate first passage time of an interesting, rare and amazing ... First passage time in Markov chains is defined as the first time that a chain passes a specified state or lumped states. This state or lumped states may indicate first passage time of an interesting, rare and amazing event. In this study, obtaining distribution of the first passage time relating to lumped states which are constructed by gathering the states through lumping method for a irreducible Markov chain whose state space is finite was deliberated. Thanks to lumping method the chain's Markov property has been preserved. Another benefit of lumping method in the way of practice is reduction of the state space thanks to gathering states together. As the obtained first passage distributions are continuous, it may be used in many fields such as reliability and risk analysis 展开更多
关键词 Markov chain distribution of first passage time lumped states.
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Financial Coordination and Income Distribution of Agricultural Supply Chain
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作者 Leilei Zhang Honglian Guo 《Proceedings of Business and Economic Studies》 2021年第3期6-13,共8页
The agriculture field is a fundamental industry which supports the rapid development of the nation?s economy.However,credit constraints faced by farmers have restricted the modernization in the agricultural industry.T... The agriculture field is a fundamental industry which supports the rapid development of the nation?s economy.However,credit constraints faced by farmers have restricted the modernization in the agricultural industry.The agricultural supply chain finance is effective in promoting rural industrial revitalization and agricultural modernization,which is of great significance to the transformation and development of rural economy and agriculture in China.In this paper,the financial coordination model in agricultural supply chain is constructed,and the income distribution model of Shapley value method is introduced.The results showed that the agricultural supply chain finance can significantly improve the income of the participants in the agricultural industrial chain and verify the economic feasibility of agricultural supply chain finance. 展开更多
关键词 AGRICULTURE Supply chain finance Income distribution
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解决农产品配送“断链”的光伏冷链小车设计 被引量:1
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作者 周亚东 葛红剑 朱丽萍 《机械设计与制造》 北大核心 2024年第2期328-331,共4页
在现有普通农用电动货运三轮车的基础上,通过增加1.3m^(3)保温车厢、600Wp太阳能电池板、4块12V100Ah蓄电池、110W直流压缩机等设备,先计算车厢从35℃降至-10℃所需要的冷量,再综合验证组件与蓄电池满足小车一天的制冷与行驶需求。通过... 在现有普通农用电动货运三轮车的基础上,通过增加1.3m^(3)保温车厢、600Wp太阳能电池板、4块12V100Ah蓄电池、110W直流压缩机等设备,先计算车厢从35℃降至-10℃所需要的冷量,再综合验证组件与蓄电池满足小车一天的制冷与行驶需求。通过精确的系统匹配及智能温度控制,改造成太阳能智能冷链物流小车,很好的解决了现在冷链物流配送中“最后一公里”空缺的问题,经过测试达到设计要求。本车可直接开到田间地头,有方便快捷、耐用、不付电费、造价低等优势,是现代农业物流冷链运输必不可少的中转设备,实现了农村鲜活农产品采摘−物流中心−用户的无缝对接。 展开更多
关键词 鲜活农产品 冷链配送 太阳能 直流压缩机 最后一公里
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时间窗约束下农产品物流配送路径优化研究 被引量:2
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作者 陈妮 《自动化技术与应用》 2024年第2期17-20,30,共5页
农产品需求量增加对物流配送提出较高挑战,基于此提出时间窗约束下农产品物流配送路径优化方法研究。依客户预期服务时间需求,取混合时间窗约束函数确定时间窗、物流配送车辆最大载重、配送路径长度与物流配送车辆约束条件,构建农产品... 农产品需求量增加对物流配送提出较高挑战,基于此提出时间窗约束下农产品物流配送路径优化方法研究。依客户预期服务时间需求,取混合时间窗约束函数确定时间窗、物流配送车辆最大载重、配送路径长度与物流配送车辆约束条件,构建农产品物流配送路径优化模型;基于农产品物流配送需求改进传统遗传算法,求解构建模型,即获农产品物流配送路径优化结果。实验结果显示:相较生鲜农产品多车型冷链物流车辆路径优化,所提方法最优农产品物流配送路径获取迭代次数更少、配送路径长度更短、总成本更低,应用性能更佳。 展开更多
关键词 农产品物流配送 路径优化 时间窗约束 配送路径 冷链物流
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低碳多因素视角下的冷链配送路径优化 被引量:2
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作者 魏子秋 勾靖琳 《物流科技》 2024年第3期148-153,共6页
全球变暖问题日益凸显,如何减少冷链配送环节中的二氧化碳排放成为当今物流领域研究的重点和难点,文章考虑到冷链物流配送过程中产生的一系列成本和影响冷链物流配送环节中的二氧化碳排放,配送点软硬时间窗,配送道路实况等因素,并整合... 全球变暖问题日益凸显,如何减少冷链配送环节中的二氧化碳排放成为当今物流领域研究的重点和难点,文章考虑到冷链物流配送过程中产生的一系列成本和影响冷链物流配送环节中的二氧化碳排放,配送点软硬时间窗,配送道路实况等因素,并整合了我国现行碳排放权交易政策,从根本出发分析了目前我国低碳冷链物流的配送路径,构建了以配送环节总成本最小为目标的数学分析模型,最后通过设计方案以及算法模型拟合得到最优结果。从运行结果看出,采用较改进的遗传算法可以在一个周期内降低冷链物流配送的总成本,以此证明了提出的模型和改进算法的有效性。 展开更多
关键词 低碳 冷链物流 配送路径优化 遗传算法
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