Plausible versus implausible tensile price claim: Selective accessibility model approach

Retailers frequently use exaggerated price discount advertisements with a tensile price claim (TPC; e.g., “Save up to 70%”) to attract consumers because they expect that once consumers enter a store, they will purchase low‐ or medium‐discounted products. Drawing on the selective accessibility model, this study investigated the way in which an implausibly high maximum level of savings stated in a TPC influences consumers’ expected price discount (EPD) and perceptions of actual price discounts across different types of TPCs (i.e., TPC stating a maximum level and TPC stating a range of savings). This study also investigated two situations in which consumers have previous knowledge of a product’s price discount versus when they have less or no knowledge of the discount. For both conditions, a single‐anchor TPC (i.e., “Save up to Y%”) that stated an implausible maximum level of savings led to a higher EPD and lower perceptions of the deal (i.e., perceived savings, price fairness, and perceived value) with respect to the actual price discount than did a TPC with a plausible maximum level of savings. In contrast, when the TPC stated two anchors (i.e., “Save X–Y%”) and consumers had knowledge of the price discount, their EPDs assimilated only toward the plausible anchor (X), and ignored the implausibly high maximum price discount (Y), resulting in a lower EPD and higher perceptions of the deal of the actual price discounts than a TPC that stated a plausibly high maximum level of savings. In contrast, when consumers had no knowledge of the price discount, their EPDs only adjusted toward the more plausible anchor (X), regardless of whether they perceived the maximum anchor as plausible or implausible. Thus, there was no difference in consumers’ perceptions of “Save X–Y%” between implausibly and plausibly high Y%.     

自适应调制与编码系统及其在WCDMA中的应用

本文主要讨论自适应调制与编码系统(Adaptive Modulation and Coding system）的原理，介绍AMCS实现的几个关键技术，包括RCPT（速率适配凿孔turbo）码、高阶调制、H-ARQ和MIMO（多输入多输出）系统。介绍了在WCDMA的高速下行分组接入业务（HSDPA）中使用的自适应调制编码机制，并讨论了可能增加的设备复杂度。     

Assessment of Interjudge Reliability in the Open-Ended Questions Coding Process

In the process of coding open-ended questions, the evaluation of interjudge reliability is a critical issue. In this paper, using real data, the behavior of three coefficients of reliability among coders, Cohen’s K, Krippendorff’s α and Perreault and Leigh’s I _r are patterned, in terms of the number of judges involved and the categories of answer defined. The outcome underlines the importance of both variables in the valuations of interjudge reliability, as well as the higher adequacy of Perreault and Leigh’s I _r and Krippendorff’s α for marketing and opinion research.     

数据流链接技术在军用维修物资编码系统中的应用

本文从军用维修物资业务管理的角度,讲述了军用维修物资的分类体系;从军用维修物资信息管理的角度,讲述了军用维修物资的信息分类;从计算机数据处理的角度,讲述了数据流链接技术在军用维修物资编码系统中的应用,并给出了其应用程序流程.     

通用制造工艺分类编码标准研究

在对通用制造工艺进行调研的基础上,采用面分类法和线分类法相结合的方式对制造工艺进行分类,得到制造工艺分类标准草案,以及在此基础上对通用制造工艺进行编码,有效地解决了机械制造企业信息化过程中对通用制造工艺知识的交流与共享问题。     

多层介质频率选择表面的等效电路分析方法

基于数值仿真计算和微波网络理论，提出了一种多层介质中频率选择表面（FSS）等效电路的分析方法。该方法物理过程直观，计算量小，适用于二维任意形状FSS等效电路的精确求解。以方形贴片型FSS为例验证了等效电路模型的准确性，并分析了多层介质对其等效电路参数的影响规律。最后，基于滤波器理论与FSS等效电路模型设计了双层带通型FSS，计算结果表明全波仿真结果与理论计算结果基本一致，为多层FSS的综合设计提供了一种精确设计方法。     

Selective disclosure and the role of Form 8-K in the post-Reg FD era

We investigate the impact of Form 8-K filings on cross-firm differences in analysts’ private or idiosyncratic information in the post-Reg FD era. Using firms’ connections to the investment community to identify the likelihood of selective disclosure, we document differences in analysts’ idiosyncratic information arising from selective disclosure before 8-K filings. While filings of 8-Ks pursuant to Reg FD attenuate the link between connections and analysts’ idiosyncratic information, they do so only after selective disclosures have already resulted in some analysts having better private information. In addition, the connections continue to facilitate private information search after the filings of non-Reg FD-specific 8-Ks.     

WSN中基于网络编码的协同点对点信息交换算法研究

针对无线传感器中的节点调度传输问题,提出了一种基于网络编码的协同点对点信息交换算法。由于该算法不仅能够充分利用无线信道的广播特性,而且使用了协同点对点信息交换,从而有效地弥补了PIE算法在数据包的个数大于节点数目的情况下,性能不理想的缺陷,实现了传输次数的减少。仿真结果表明,所提算法的传输有效性明显地优于PIE算法和最少优先算法。     

基于编码的方式研究烟草自动化仓储物流系统

文中主要以日本大福公司研发的自动化仓储物流系统在厦门烟草工业有限责任公司的具体应用作为出发点,提出区间编码的分析方法。该编码分析方法有助于实现系统的标准化、规范化。文中从烟草工艺流程入手,对可以建造立体仓库的环节进行分析,尤其对在烟草工业中物流系统应用最广泛、技术最成熟的生产环节之一辅料供应环节的工作流程做详细的剖析,细致地分解每一个工作步骤进行编码,并最终展开形成编码流程图,全面展示了编码的应用过程。     

基于物理层网络编码的非对称中继系统性能分析

在无线通信研究中,网络编码因其可有效提升带宽利用率的特性得到了大量关注。 但是,网络编码用于双向中继信道（TWRC）时,中继位置的不对称将造成系统性能的下降, 故在源节点使用分层调制的方法来解决此问题。研究了分层调制和物理层网络编码的联合以及 优化,并进行了系统仿真。仿真结果显示,在非对称中继信道下,通过与传统调制方案（CM） 和非对称调制方案（AM）进行性能对比,分层调制物理层网络编码（HMPNC）能够极大地改 善端到端误比特率以及频谱效率。