碳减排下的汽车零部件循环取货路径优化研究

针对能源消耗严重和环境污染双重压力下的现象,提出对汽车企业零部件循环取货路径的优化建议。将CO2的排放量与满足汽车制造企业的生产需要相结合,根据货运车辆的碳排放需要选择合适的碳排放计算模型,分别建立不考虑碳排放的循环取货路径模型和考虑碳排放的循环取货路径模型,利用遗传算法及基本原理对所建模型进行算法设计,并运用Matlab软件编程,最后对考虑与不考虑碳排放量两种情况进行计算对比分析。结果表明:考虑碳排放的循环取货比不考虑碳排放的循环取货路径总长虽增加了3.8%,但总成本减少了1.6%,碳排放量减少比例为12.37%,改善了汽车零部件循环取货过程中车辆的碳排放和能耗量,一定程度上减少了循环取货的运输费用,取得了汽车企业零部件循环取货路径更加经济环保的效果。     

远距离零部件供应商循环取货应用

针对汽车制造企业精益生产的要求,结合远距离汽车零部件供应商循环取货特点,从供应商集并中心选址、循环取货车辆路径的设计、汽车零部件远距离供应商循环取货流程设计、循环取货信息系统的设计和商务系统规划五个环节对远距离零部件供应商循环取货进行系统的研究。最后对W公司远距离零部件供应商循环取货进行实证研究。     

基于C-W算法的汽车零部件循环取货车辆路径优化研究

针对汽车零部件取货具有多频次和时间窗限制的特点,利用先进的循环取货方式对零部件进行取货.并构建数学模型优化取货路径,利用C-W算法,获得符合所有约束条件的满意解.使其在配送总量一定的情况下,运输总里程大大降低,从而节约了运输成本.最后给出一个算例.     

带相容性约束的车辆路径问题及其混合蚁群算法

【目的】着力设计带相容性约束的车辆路径问题的高效启发式算法。【方法】针对带相容性约束的车辆路径问题的特点,提出了一种混合蚁群算法。该算法的核心由蚁群搜索和禁忌搜索组成,对蚁群搜索的状态转移公式和信息素更新规则进行了改进,并在蚁群搜索过程中加入了一个扰动机制,同时在禁忌搜索部分采用了新的邻域结构和禁忌规则。【结果】得到了关于带相容性约束的车辆路径问题的混合蚁群算法。【结论】通过多个算例对算法进行了测试,计算结果表明该算法具有很高的求解效率。     

具有同时送货和取货需求的车辆路径问题的蚁群禁忌混合优化算法

在分析具有同时送货和取货需求的车辆路径问题(VRPSDP)的基础上,建立VRPSDP数学模型,提出一种新的求解VRPSDP问题的蚁群禁忌混合优化算法(ACO-TS),并通过实验验证该算法的有效性和可行性.新算法首先采用蚁群算法产生阶段最优解,然后利用禁忌搜索算法对阶段最优解进一步优化.实验表明,新算法能够高效解决VRPSDP问题,并且具有较好的优化效果.     

基于PSO-VNS算法的质押物配送路径研究

【目的】质押物配送是物流金融中存货质押融资业务的重要流程。优化质押物配送路径可以节省配送时间,减小质押物在途风险以及运输成本。【方法】以配送质押物的车辆运行总距离最小为目标,将其转化为带距离和容量约束的车辆路径问题(DCVRP),建立数学模型。针对粒子群算法(PSO)的优缺点,设计用于求解该问题的混合变邻域搜索粒子群算法(PSO-VNS)。【结果】利用该算法求解应用实例,与基本粒子群算法对比求解的算法收敛过程和所得配送路径方案。【结论】通过实例研究表明,所改进的PSO-VNS算法能够快速跳出局部收敛,其全局寻优能力得到改善,且收敛速度更快,能够较好地为质押物配送路径问题提供解决方案。     

基于PSO-VNS算法的质押物配送路径研究

【目的】质押物配送是物流金融中存货质押融资业务的重要流程。优化质押物配送路径可以节省配送时间,减小质押物在途风险以及运输成本。【方法】以配送质押物的车辆运行总距离最小为目标,将其转化为带距离和容量约束的车辆路径问题(DCVRP),建立数学模型。针对粒子群算法(PSO)的优缺点,设计用于求解该问题的混合变邻域搜索粒子群算法(PSO-VNS)。【结果】利用该算法求解应用实例,与基本粒子群算法对比求解的算法收敛过程和所得配送路径方案。【结论】通过实例研究表明,所改进的PSO-VNS算法能够快速跳出局部收敛,其全局寻优能力得到改善,且收敛速度更快,能够较好地为质押物配送路径问题提供解决方案。     

基于PSO-VNS算法的质押物配送路径研究

【目的】质押物配送是物流金融中存货质押融资业务的重要流程。优化质押物配送路径可以节省配送时间,减小质押物在途风险以及运输成本。【方法】以配送质押物的车辆运行总距离最小为目标,将其转化为带距离和容量约束的车辆路径问题(DCVRP),建立数学模型。针对粒子群算法(PSO)的优缺点,设计用于求解该问题的混合变邻域搜索粒子群算法(PSO-VNS)。【结果】利用该算法求解应用实例,与基本粒子群算法对比求解的算法收敛过程和所得配送路径方案。【结论】通过实例研究表明,所改进的PSO-VNS算法能够快速跳出局部收敛,其全局寻优能力得到改善,且收敛速度更快,能够较好地为质押物配送路径问题提供解决方案。     

基于PSO-VNS算法的质押物配送路径研究

【目的】质押物配送是物流金融中存货质押融资业务的重要流程。优化质押物配送路径可以节省配送时间,减小质押物在途风险以及运输成本。【方法】以配送质押物的车辆运行总距离最小为目标,将其转化为带距离和容量约束的车辆路径问题(DCVRP),建立数学模型。针对粒子群算法(PSO)的优缺点,设计用于求解该问题的混合变邻域搜索粒子群算法(PSO-VNS)。【结果】利用该算法求解应用实例,与基本粒子群算法对比求解的算法收敛过程和所得配送路径方案。【结论】通过实例研究表明,所改进的PSO-VNS算法能够快速跳出局部收敛,其全局寻优能力得到改善,且收敛速度更快,能够较好地为质押物配送路径问题提供解决方案。     

基于改进Shapley值法的汽车零部件循环取货收益分配研究

运用Shapley值法模型,来解决汽车零部件循环取货收益分配问题,并综合考虑各合作企业的风险,投资和物流能力对收益的影响,计算出综合修正因子,改进传统的Shapley值法模型.结合实例,对改进的Shap-ley值法模型和传统的Shapley值法模型进行比较分析,得出改进Shapley值法模型的汽车零部件循环取货收益分配结果的更加合理.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.