数字脉冲应答机的时延补偿方法

针对模拟体制脉冲应答机中声表面波延迟线的设计缺陷,运用基于FPGA的数字存 储转发技术,提出一种数字化高精度时延补偿方法,大大提高了脉冲应答机的时延转发精度 。 该脉冲应答机具有延迟时间易修改、转发精度高等特点,对实际工程应用具有借鉴价值。     

商店忠诚、自有品牌态度及其购买意向的关系研究——消费者交易倾向和产品社会可见性的调节作用

文章探讨商店忠诚、自有品牌知识对自有品牌态度的影响,以及自有品牌态度对购买意向的影响,并考察消费者交易倾向和产品社会可见性对上述关系的调节作用。研究发现,自有品牌知识和商店忠诚对自有品牌态度都有正面作用,交易倾向正向调节自有品牌知识对自有品牌态度的影响,负向调节商店忠诚对自有品牌态度的影响;自有品牌态度对自有品牌购买意向有正面作用,产品的社会可见性负向调节这种影响作用,质量易评估性的调节作用缺乏显著性。     

Identifying consumer preferences for nutrition information on grocery store shelf labels

Nutrition labels can potentially benefit consumers by increasing product knowledge and reducing search costs. However, the global increase in obesity rates leads one to question the effectiveness of current nutrition information formats. Alternative formats for providing nutrition information may be more effective. Shoppers at a major grocery chain participated in choice experiments designed to identify preferences for nutrition information provided on grocery store shelf labels. Shoppers demonstrate a strong affinity for shelf-label nutrition information and the presentation of the nutrition information significantly affects their preferences as well. Several demographic variables help to explain differences in preferences.     

A data-driven decision support system with smart packaging in grocery store supply chains during outbreaks

The unexpected emergence of the COVID-19 pandemic has changed how grocery shopping is done. The grocery retail stores need to ensure hygiene, quality, and safety concerns in-store shopping by providing “no-touch” smart packaging solutions for agri-food products. The benefit of smart packaging is to inform consumers about the freshness level of a packaged product without having direct contact. This paper proposes a data-driven decision support system that uses smart packaging as a smart product-service system to manage the sustainable grocery store supply chain during outbreaks to prevent food waste. The proposed model dynamically updates the price of a packaged perishable product depending on freshness level while reducing food waste and the number of rejected customers and maximising profit by increasing the inventory turnover rate of grocery stores. The model was tested on a hypothetical but realistic case study of a single product. The results of this study showed that stock capacities, freshness discount rate, freshness period, and quantity discounts significantly affect the performance of a grocery store supply chain during outbreaks.