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顾客参与企业研发是产品价值创造的最初始过程,不仅提高产品接受度、满足顾客需求,而且为企业增加收入,但同时也产生相应成本。文章探究顾客参与研发的系统中,顾客、企业和产品的价值共创行为以及企业决策如何影响三者价值;立足多目标视角,充分考虑企业与顾客的收益、成本,采用系统动力学方法建立顾客参与研发过程的动态价值共创模型,全面探究系统内部共创机理。在模型基础上,重点就企业产品价格、交互次数以及激励资金比例等策略进行仿真,使企业、顾客及产品实现价值共创。结论如下:(1)随着顾客、企业交互次数的增多,顾客参与研发过程同样具备一般产品生命周期导入期、成长期、成熟期以及衰退期的特点。(2)系统存在最优交互次数;且最优交互次数随着研发投入比例减少而增加。(3)在不考虑参与顾客获取激励资金的情况下,企业针对不同顾客群(参与研发顾客与普通购买顾客)进行定价,在最优交互次数状态下,统一定价模式优于差别定价模式,将为企业带来更大的收益。 相似文献
104.
Adrian Dumitrescu 《Discrete Mathematics》2010,310(19):2542-2545
Given a polygon P in the plane, a pop operation is the reflection of a vertex with respect to the line through its adjacent vertices. We define a family of alternating polygons, and show that any polygon from this family cannot be convexified by pop operations. This family contains simple as well as non-simple (i.e., self-intersecting) polygons, as desired. We thereby answer in the negative an open problem posed by Demaine and O’Rourke (2007) [9, Open Problem 5.3]. 相似文献
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为实现在工况变化条件下对旋转机械的故障预测, 提出使用相空间曲变和平滑正交分解理论在变工况条件下跟踪旋转机械的故障演化过程. 首先在对目标系统的观测时间序列相空间重构的基础上, 通过量化相空间曲变构建信号损伤演化的跟踪函数, 为弥补累积模型误差和相空间点局部分布概率差异造成的误差, 将时间序列和相空间进行分割, 并以此构建跟踪矩阵; 再利用平滑正交分解方法将跟踪矩阵中分别由实际损伤劣化和工况变化造成的演化趋势进行分离, 根据平滑正交特征值提取出其中能够反映实际故障演化趋势的平滑正交分量; 最后以变转速情况下轴承外环故障退化的仿真信号为例验证算法的有效性. 计算结果表明: 本文提出的算法能够对旋转机械故障的演化趋势实现有效跟踪, 基本排除转速波动造成的工况变化影响.
关键词:
相空间曲变
平滑正交分解
变工况
故障跟踪 相似文献
107.
Enver Tatar Ramazan Dikici 《International Journal of Mathematical Education in Science & Technology》2013,44(8):1027-1036
The purpose of this study was to determine the efficiency of 4MAT method of instruction in which learning style and cerebral hemispheres are taken into account in teaching the binary operation and its properties in mathematics. The sample of this study comprised 58 ninth grade students in two separate classes in a high school. One of the classes was selected as the experimental group in which 4MAT method of instruction was used; and the other class was selected as the control group in which the traditional teaching was given, and this selection was performed randomly. The data have been obtained primarily from three scales, namely ‘mathematical knowledge test’, ‘mathematical attitude scale’ and ‘knowledge test on binary operation and its properties’. It has been determined that 4MAT method of instruction was more efficient than the traditional method in teaching of the binary operation subject in mathematics. 相似文献
108.
Let * be a star operation on an integral domain D. Let f (D) be the set of all nonzero finitely generated fractional ideals of D. Call D a *-Prüfer (respectively, (*, v)-Prüfer) domain if (FF ?1)* = D (respectively, (F v F ?1)* = D) for all F ∈ f (D). We establish that *-Prüfer domains (and (*, v)-Prüfer domains) for various star operations * span a major portion of the known generalizations of Prüfer domains inside the class of v-domains. We also use Theorem 6.6 of the Larsen and McCarthy book [30], which gives several equivalent conditions for an integral domain to be a Prüfer domain, as a model, and we show which statements of that theorem on Prüfer domains can be generalized in a natural way and proved for *-Prüfer domains, and which cannot be. We also show that in a *-Prüfer domain, each pair of *-invertible *-ideals admits a GCD in the set of *-invertible *-ideals, obtaining a remarkable generalization of a property holding for the “classical” class of Prüfer v-multiplication domains. We also link D being *-Prüfer (or (*, v)-Prüfer) with the group Inv*(D) of *-invertible *-ideals (under *-multiplication) being lattice-ordered. 相似文献
109.
In the last few years, the concepts of stability and Clifford regularity have been fruitfully extended by using star operations. In this article we deepen the study of star stable and star regular domains and relate these two classes of domains to each other. 相似文献
110.
Large payload quantum steganography based on cavity quantum electrodynamics 总被引:1,自引:0,他引:1
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A large payload quantum steganography protocol based on cavity quantum electrodynamics (QED) is presented in this paper, which effectively uses the evolutionary law of atoms in cavity QED. The protocol builds up a hidden channel to transmit secret messages using entanglement swapping between one GHZ state and one Bell state in cavity QED together with the Hadamard operation. The quantum steganography protocol is insensitive to cavity decay and the thermal field. The capacity, imperceptibility and security against eavesdropping are analyzed in detail in the protocol. It turns out that the protocol not only has good imperceptibility but also possesses good security against eavesdropping. In addition, its capacity for a hidden channel achieves five bits, larger than most of the previous quantum steganography protocols. 相似文献