Halal-friendly hotels: impact of halal-friendly attributes on guest purchase behaviors in the Thailand hotel industry

This study was designed to identify the attributes of a halal-friendly hotel and evaluate the role of these attributes in motivating the behavioral intentions of Muslim customers. Qualitative and quantitative approaches identified 30 validation and reliability items involving five distinctive dimensions, which included halal-friendly service, facilities, foods and beverages, privacy, and customer-service equality. The findings from the structural model indicate that the proposed model sufficiently explains the variance in intentions; three attributes were positively related to cognitive evaluation, and four attributes had significant influence on affective evaluation. In addition, the results indicated that cognitive and affective evaluation worked as mediators.     

Cybersecurity breaches and investors’ interest in the firm as an investment

Cybersecurity breaches pose a significant risk to firms. To combat these risks, many firms engage in strategic cybersecurity risk management initiatives. While these efforts may reduce the likelihood of a cybersecurity breach, they do not eliminate the risk of a breach. In the event of a cybersecurity breach, firms may issue an apology to investors. This study uses an experiment to examine whether a firm indicates cybersecurity risk management is a strategic initiative and whether a post-cybersecurity breach apology by the CEO impacts nonprofessional investors’ investment interest in the firm. Results show that, in response to a cybersecurity breach, the presence of a CEO apology positively impacts investors’ investment impression and their perceptions of CEO affective and CEO cognitive trust. We find that investors’ investment interest is lowest for a firm that previously indicates cybersecurity risk management is a strategic initiative and where the CEO does not issue an apology. The CEO apology, however, does not significantly impact investment amount, a secondary measure of investor interest. Results from this study have implications for managers, investors, and regulators.     

Compulsory Ethics Education and the Cognitive Moral Development of Salespeople: A Quasi-Experimental Assessment

This study investigated several basic research questions suggesting a positive relationship between education and cognitive moral development. More specifically, these research questions examined the relationship between government mandated ethics education and cognitive moral development by testing the efficacy of a compulsory ethics intervention. Kohlberg's (1969, 1984) Cognitive Moral Development Theory was applied to test the efficacy of compulsory ethics education on the moral development of real estate salespeople used comparative statistical measures of ethical reasoning ability.The results of this research, while somewhat counterintuitive, suggest that the value of compulsory ethics education as an intervention to improve the moral reasoning of real estate salespeople is highly questionable. However, the results of the study do provide new insights into the relationship between ethics education and cognitive moral development.     

EFL写作中代词误用的认知分析

在EFL写作中出现人称代词视角转换混乱、指代不明、物主代词省略及忽略名词与代词的认知差异等现象,从认知语言学的相关理论来看,这是由于代词的使用受到认知方式的制约。教师应有的放矢地指导学生正确运用代词。     

Public system usability analysis for the valuation of cognitive burden and interface standardization: A case study of cross-ATM design

Humans are unable to effectively handle machines that have poor interface and interaction patterns. The Automated Teller Machine (ATM) is one of the machines that is most frequently operated by a wide spectrum of people. Hence, it is common to apply Human–Computer Interaction (HCI) technology in the design of ATMs. User–ATM interaction, however, has barriers such as a user’s working memory limit, lower literacy level, or lack of awareness and access. Moreover, the diversity of interfaces hurt user motivation, perception, and experience significantly. For example, each bank has its own ATM design targeting its customers only and, thus, when clients of other banks come across such a machine, they suffer from cognitive burden and commit many errors. To this end, we conduct an analytical survey of ATMs used in Pakistan through user analysis and heuristics analysis. We figure out the influence of design diversity and user perception on ATM users’ cognitive stress with the cognitive walkthrough analysis on the survey. We also uncover a realism-usability gap by reviewing the sampled ATM screens from the viewpoint of HCI heuristics. Finally, we suggest the guidelines on the cross-ATM design, characterized by the standardized fast-cash menu and the fail-safe mechanism for novices. This study demonstrates that users are reluctant to switch out of their comfort zones, due to learning costs and a lack of motivation. Therefore, we should design public systems in a very standardized way, which becomes more crucial for a user’s cognitive relief as interface and design patterns are becoming more diverse in our daily lives.     

基于L频段数字航空通信系统1的F-OFDM波形设计

随着航空飞行器种类和数量的激增以及第五代（5G）移动通信系统和物联网（IoT）时代的到来,下一代航空无线通信系统面临着高安全性、大传输容量、低延时、强鲁棒性、高灵活性和综合业务提供等新的挑战。为此,提出了一种基于L频段数字航空通信系统1（L-DACS1）的滤波正交频分复用（F-OFDM）波形设计方法并探讨了可能的技术演进路径。首先引入了认知无线电、非连续载波干涉码OFDM和滤波器的思想,然后针对不同航空飞行器用户动态自适应配置波形参数。仿真结果表明,该方法得到的系统波形具有较低的带外辐射功率、优良的块误码率性能和较高的吞吐量增益。     

利用秩和检验的多天线协作频谱感知

高效稳定的频谱感知是认知无线电系统的关键环节。传统的能量检测算法受噪声不确定性影响,而协方差矩阵类算法在天线相关性低时性能较差。针对上述缺陷,利用秩来衡量由信道衰落导致的同一感知时刻不同天线上的信号功率差异,提出通过构建秩和统计量来实现频谱感知的算法。另外,推导了所提算法判决门限的理论表达式,结果显示其不受采样点数影响,因此当采样点数变化时无需重新设置门限。理论分析和仿真表明所提算法不受噪声不确定度的影响,并且在低天线相关性时可以保持良好的性能。     

LAT模型中基于次用户权值优化的频谱感知

全双工认知无线电LAT（Listen-and-Talk）模型因自干扰消除不完全而使得频谱感知能力下降。为提升频谱感知性能,提出了LAT模型下基于次用户加权的协作式频谱感知方法,分别研究了决策融合和数据融合下次用户最优权值的算法。求解最优权值时利用了凸优化方法,在处理非凸问题时利用了序列规划的方法,得到了较好的优化结果。仿真实验表明,在加权融合机制下的LAT模型得到了趋近于传统LBT（Listen-before-Talk）模型的频谱感知能力。     

基于权值优化的认知WiMax信号协同识别

传统的正交频分复用（OFDM）系统识别算法只能识别出接收信号是否为基于全球微波互联接入技术（WiMax）的OFDM信号,但无法判断该信号是认知信号,并且在复杂电磁环境下识别正确率低。为此,提出了一种协同识别认知WiMax无线网络OFDM信号的算法。该算法首先利用OFDM信号的循环自相关特性估计信号的有用符号时间,并通过估计各协同感知节点的信噪比对时间参数的估计值进行加权,得到有用符号时间的协同估计值,进而判断接收信号是否为基于WiMax系统的OFDM信号;再通过自私攻击策略,实现对OFDM信号是否是认知WiMax信号的判别,为进一步研究认知WiMax网络节点定位技术奠定了基础。仿真结果表明,与非协同识别算法相比,提出的协同识别算法在多径和低信噪比条件下具有更高的识别率。     

认知无线Ad Hoc网络单跳传输容量的研究

研究了认知无线电Ad Hoc网络的单跳传输能力,该网络与主用户网络工作在同一地理区 域和共享同一频谱。主用户网络具有更高的优先级访问认知用户网络频谱,认知网络需要控 制其发射机密度以限制对主用户干扰。认知、主用户节点位置假设服从泊松点分布,推导了 认知、主用户网络单跳传输容量,最后进行了仿真验证其正确性。仿真结果表明：主用户网 络传输容量随主用户中断概率增加而增加,随增量中断概率的增加而降低。认知用户网络传 输容量仅由次用户中断概率参数决定。