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。     

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.     

认知图式关照下的习语文化可译性

图式理论是一种关于知识的认知过程理论。翻译是运用一种语言把另一种语言所表达的思维内容准确而完整地重新表达出来,是一种跨语言、跨文化、跨社会的交际活动。习语作为一种语言现象,积淀着最深厚的文化底蕴,承载着不同民族的文化特点和文化信息,它们与文化传统紧密相连,不可分割。通过运用认知图式理论对习语文化的可译性问题进行探讨,从而提出习语文化图式可译性主要通过A-A对应法、A-B对应法和A-zero三种方法来实现。     

农村中小学生场认知风格、学业成绩与家庭社会经济地位（SES）的关系

目的研究场认知风格、学业成绩与家庭经济地位的关系。方法用镶嵌图形测验（简称EFT）和自编的家庭SES问卷对553名中小学生施测,并收集期终考试成绩。结果①母亲职业、父母职业总分、家庭SES总分与EFr得分在9年级呈显著正相关（P〈0．01）。父亲职业与EFT得分在4、5、9年级呈显著正相关（P〈0．05）;父母学历与EFT得分各年级相关均未达到显著。②家庭SES得分与学习成绩总分各年级相关均未达到显著。结论家庭经济地位对场认知风格的形成和学业成绩有影响,但是在不同的年龄阶段影响不同。     

The impact of participative leadership on job performance and organizational citizenship behavior: distinguishing between the mediating effects of affective and cognitive trust

This study examines the mediating effects of cognitive trust and affective trust on the relationship between supervisors' participative leadership behavior and subordinate work outcomes, using data obtained from 247 dyads in a manufacturing organization located in mainland China. Structural equation modeling revealed that while affective trust fully mediated the relationships between participative leadership of supervisor and subordinate job performance and organizational citizenship behavior, cognitive trust had non-significant effects. These findings underscore the importance of interpersonal interactions between the supervisor and subordinate for engendering subordinate work outcomes. They also lend support to the exchange (relationship)-based explanation as to how trust enhances the response of subordinates to the participative leadership behavior of their immediate supervisor, given that affective trust involves a process of social exchange between both parties over an extended period of time.     

资产减值与会计盈余可比性

本文探讨了资产减值与会计盈余可比性的关系，发现会计盈余受资产减值的影响越大，其与同行业其他企业的可比性就越差。进一步的分析显示，资产减值所涉及的稳健性原则和盈余管理行为是导致企业间会计信息不可比的主要原因所在。这表明，企业会根据各自的报告动机以不同的标准执行同一资产减值准则，仅仅依靠会计准则的趋同难以完全达到会计信息的可比性目标。 IASB若以全球会计信息可比为目标，则应谨慎拓展资产减值会计。     

A Structural Model of Leisure Constraints Negotiation in Outdoor Recreation

A conceptual model tested the leisure constraints negotiation process of outdoor recreation: motivation and the constraints to participate likely influenced by negotiation efforts. Higher motivation to participate encourages using negotiation strategies and resources to overcome constraints. Experiencing constraints was thought to trigger negotiation efforts. Drawing from social cognitive theory, negotiation-efficacy was proposed to encourage motivation, diminish the perception of constraints and promote negotiation efforts, which indirectly influenced positive participation. The model tested used data collected from a random sample of Arizona residents through hierarchical confirmatory factor analysis and structural equation modeling. Results support the conceptual model and suggest the constraints negotiation process is a dynamic interaction of influences promoting outdoor recreation participation.     

习语翻译中的关联缺失与关联重建

由于交际语言、交际对象及认知语境的变化,习语翻译过程中出现关联缺失现象,译者在尽力保留源习语语言、文化意义及交际意图的同时,应充分考虑译文读者的认知语境,采用灵活手段在译文中重建关联。     

Requirements for Skill,Training and Retraining in the Mexican Food and Drink Industry

The Mexican food and drink industry has been producing for a more standardized consumer market. The influence of North American and European habits on Mexican traditional habits is very strong, and this population is rapidly coming to be part of the global market. The traditional Mexican foods and drinks are being processed by Mexican and American companies, including new formulas of low calories of healthy diet At the same time, the changes in the food and drink industry requires training in the management of the new biotechnologies and the aspects of business administration and vocational-technical education, in order to increase their competition with its processed products in the internal and also the international markets, through efficiency and quality.     

An Investigation into the Meaning of the Term Commitment in Sino Foreign Higher Educational Alliances—An Adventure into the Heart and Soul of Successful Alliances

Abstract

There is now a substantial body of research evaluating various aspects of educational alliances between Chinese and foreign universities, and one of the key aspects of success seems to be the degree of commitment made by the two sides. Yet the term commitment continues to remain elusive and very broad in scope. This paper attempts to identify what commitment meant to managers from a number of Chinese and foreign university alliances and concludes that it was a complex and deeply felt sentiment encompassing affective and cognitive aspects related to the personal and operational dimensions of an alliance over time. Commitment-in its various forms and guiseslay at the very core of a successful alliance. It enabled people-and their respective institutions-to devote considerable levels of emotional and cognitive energy to the alliance: it was about passion, and results; about enthusiasm and value; and about empathy and measurable quality.