Pricing and capacity allocation strategies: Implications for manufacturers with product sharing

Emerging sharing modes, like the consumer-to-consumer (C2C) sharing of Uber and the business-to-consumer (B2C) sharing of GoFun, have considerably affected the retailing markets of traditional manufacturers, who are motivated to consider product sharing when making pricing and capacity decisions, particularly electric car manufacturers with limited capacity. In this paper, we examine the equilibrium pricing for a capacity-constrained manufacturer under various sharing modes and further analyze the impact of capacity constraint on the manufacturer's sharing mode selection as well as equilibrium outcomes. We find that manufacturers with low-cost products prefer B2C sharing while those with high-cost products prefer C2C sharing except when the sharing price is moderate. However, limited capacity motivates manufacturers to enter into the B2C sharing under a relatively low sharing price, and raise the total usage level by sharing high-cost products. We also show that the equilibrium capacity allocated to the sharing market with low-cost products first increases and then decreases. Finally, we find that sharing low-cost products with a high limited capacity leads to a lower retail price under B2C sharing, which creates a win-win situation for both the manufacturer and consumers. However, sharing high-cost products with a low limited capacity creates a win-lose situation for them.     

按照新要求培养政工干部的能力素质

在新世纪新阶段,完成全面构建社会主义和谐社会推进中国特色军事变革和建设信息化军队、打赢信息化战争的战略任务,在凸显我军政治工作地位作用的同时,也对政工干部能力素质提出了新的更高的要求.     

新型高灵敏度动态压力传感器—镱压阻传感器

本文给出了采用国产稀土金属元素镱(Yb,Ytterbium)作为动态压力传感器的实验结果,实验是分别利用炸药爆炸加载装置和在本实验室的四万焦耳电炮装置上进行的。与锰铜压阻传感器、碳压阻传感器在相应装置上所得数据作了初步比较。结果表明,镱作为动态压力传感器比锰铜和碳压阻传感器灵敏度高,使用的压力范围可低至千巴。     

解析与数值结合的方法及采用子结构法的改进

本文以常微分方程求解器为基础,采用康脱洛维奇法和线法,分别以矩形截面杆的扭转问题和含裂纹的Motz问题为例,对解析与数值结合的方法,进行了初步的研究.特别是在将子结构法引入后,数值结果得到明显的改进.     

随机截尾场合下步进应力加速寿命试验的统计分析

给出了随机截几场合下步进应力加速寿命试验（步加试验）的统计方法,并讨论了其估计的方差问题．     

实用的滤波新算法

介绍了武器系统作战软件的一种计算量小、计算效果好的滤波新算法,并对该算法进行了对比分析     

三种局部环的同调刻划

给出了C-M环、Gorenstein环和正则环上C-M模的同调性质,并用这种性质描述了这三种环的联系与区别     

努力提升政治主官能力素质

提高政治主官的能力素质,这是增强军队党组织“四个本领”的内在要求。政治主官应加强学习、坚定信念、科学运筹、开拓进取,努力提升把握部队建设方向、指导部队开展政治工作、谋划部队打赢高科技战争以及创新和发展部队政治工作的能力素质。     

Rigid elliptical cross-section ogive-nose projectiles penetration into concrete targets

The elliptical cross-section ogive-nose projectile (ECOP) has recently attracted attention because it is well suited to the flattened shape of earth-penetrating weapons. However, the penetration performance of ECOPs has not been completely understood. The objective of this study was to investigate the pene-tration performance of ECOPs into concrete targets using a theoretical method. A general geometric model of ECOPs was introduced, and closed-form penetration equations were derived according to the dynamic cavity-expansion theory. The model was validated by comparing the predicted penetration depths with test data, and the maximum deviation was 15.8％. The increment in the penetration depth of the ECOP was evaluated using the proposed model, and the effect of the major—minor axis ratio on the increment was examined. Additionally, the mechanism of the penetration-depth increment was inves-tigated with respect to the caliber radius head, axial stress, and resistance.     

面向航天装备大数据的知识图谱体系

近年来,航天装备大数据平台建设已经取得了长足进步。然而,航天装备数据深层次价值仍然未被有效发掘,关键原因在于现有大数据业务数据存在无法跨专业贯通、缺乏全局数据资源智能分析及管理。知识图谱技术作为大数据时代的推理和分析利器,与航天装备大数据完成无缝对接具有天然的优势和内在动机。本文从研究面向航天装备数据知识图谱的/组织管理、关联分析、数据挖掘、知识可视化等开放式共享服务出发,通过大数据、人工智能方法挖掘航天数据的应用潜力,并引入数据化决策模型和监控体系,建立航天装备数据全息画像,实现业务数据的跨业务贯通,并提供网格化的高速检索,以求通过提升数据管理的规范化、标准化、精益化水平指导航天装备的优化和升级。