新型小型化超宽带功率分配器

利用长为四分之一波长、两端交叉短路的对称耦合微带线和长为四分之三波长折叠微带线并联结构,提出一种新型小型化超宽带功率分配器。在等效传输线模型的基础上,采用奇偶模分解方法对其进行了理论分析,给出了参数设计方程。利用HFSS仿真优化一个微带结构的超宽带功率分配器。仿真和测量结果表明,通带内插入损耗小于2 dB,输入输出端口的回波损耗分别大于10 dB和7 dB,隔离度大于6 dB,高频带外插入损耗在13～20 GHz范围内大于20 dB。该结构尺寸仅为28 mm×32 mm,具有小型化的特点。     

To Help or Not to Help? The Good Samaritan Effect and the Love of Money on Helping Behavior

This research tests a model of employee helping behavior (a component of Organizational Citizenship Behavior, OCB) that involves a direct path (Intrinsic Motives → Helping Behavior, the Good Samaritan Effect) and an indirect path (the Love of Money → Extrinsic Motives → Helping Behavior). Results for the full sample supported the Good Samaritan Effect. Further, the love of money was positively related to extrinsic motives that were negatively related with helping behavior. We tested the model across four cultures (the USA., Taiwan, Poland, and Egypt). The Good Samaritan Effect was significant for all four countries. For the indirect path, the first part was significant for all countries, except Egypt, whereas the second part was significant for Poland only. For Poland, the indirect path was significant and positive. The love of money may cause one to help in one culture (Poland) but not to help in others. Results were discussed in the light of ethical decision making.

创业自我效能与企业家认知及创业行为关系研究

在对社会认知理论在创业研究领域应用新趋势及成果总结的基础上,对创业自我效能形成的认知因素及与创业行为的关联机制进行分析。提出了综合研究模型,提出沿着新创企业起源和发展历程中企业文化形成的脉络来考察创业自我效能对创业期企业家认知及创业行为的影响的研究思路,以及未来的研究趋势、研究重点与分析要点,为进一步深入到领导与学习过程,探索在此过程中企业家的认知发展,以及对创业绩效的影响奠定了理论基础。     

慈善抑或伪善:公众对污点企业社会责任活动的感知与评价

本文通过实验研究检验污点企业开展社会责任活动的有效性,结果发现:(1)公众对于企业开展社会责任活动的诚意动机感知度决定其对企业形象的评价。当公众认为企业的诚意动机高时,企业社会责任活动能够提升公司形象;反之,则会损害公司形象。(2)公众对企业的诚意动机感知度受企业与其社会责任活动支持的目标对象之间的利益关联显著性,以及企业社会责任活动信息来源的影响:当利益关联显著性高且信息来源于企业时,公众对企业的诚意动机感知度低,企业社会责任活动无法提升公司形象。     

Should companies hope instead? The role of verbal cues in consumers' evaluation of cause-related marketing (CRM)

Companies engaged in cause-related marketing (CRM) must demonstrate sincere commitment to gain consumer support. In this paper, we observe that consumers infer companies' commitment to the cause by the language used in the CRM promotional material. In a series of experiments, we compare the popular expression “we can make a difference” to “we hope to make a difference” in influencing consumers' response to the CRM. When consumers question company's motives—which can happen, for instance, when they do not perceive a congruency between the company and the supported cause (low firm/cause fit)—consumers seem to perceive the company to be less committed to the cause when the company says they “can” make a difference rather than “hope” to make a difference. Our conclusions offer implications for CRM by highlighting the importance of the words used and their semantic nuances to correctly reflect the company's motivations and thus communicate effectively.     

Subsidiary goals,learning orientations,and ownership strategies of multinational enterprises: evidence from foreign direct investments in Korea

This paper investigates the links among subsidiary goals, learning orientations, and ownership strategies of multinational enterprises (MNEs). The authors hypothesize that an MNE's ownership strategy is determined by subsidiary goals and learning orientations. Furthermore, interactions between learning orientations and subsidiary goals are predicted to influence the ownership strategy. Based on 723 foreign subsidiaries of MNEs operating in Korea, our findings suggest that when MNE foreign subsidiaries influence ownership choice, market-seeking goals and resource-seeking goals have a stronger fit with the exploitation orientation than with the exploration orientation. In contrast, the category of knowledge-seeking goals has a stronger fit with exploration than with exploitation.     

Road safety mass media campaigns: Why are results inconclusive,and what can be done?

Recent research literature on the effectiveness (or otherwise) of promoting road safety via mass media advertising is selectively reviewed. The overall picture from this is inconclusive: effects of substantial size have been rare, but effects of small size cannot be ruled out. It is then argued that attempts to use crash data to establish or disprove the cost-effectiveness of campaigns are, indeed, doomed to failure: the random variability in crash numbers is too great (and even low effectiveness may be sufficient as campaigns are very cheap per person reached). It is suggested that evaluation may need to be based on before and after comparison of behaviours or variables that can be objectively observed and are closely linked to safety – and in order to substantiate the behaviour-safety link, credible theories are needed.     

Intelligence Vs. Wisdom: The Love of Money, Machiavellianism, and Unethical Behavior across College Major and Gender

This research investigates the efficacy of business ethics intervention, tests a theoretical model that the love of money is directly or indirectly related to propensity to engage in unethical behavior (PUB), and treats college major (business vs. psychology) and gender (male vs. female) as moderators in multi-group analyses. Results suggested that business students who received business ethics intervention significantly changed their conceptions of unethical behavior and reduced their propensity to engage in theft; while psychology students without intervention had no such changes. Therefore, ethics training had some impacts on business students’ learning and education (intelligence). For our theoretical model, results of the whole sample (N = 298) revealed that Machiavellianism (measured at Time 1) was a mediator of the relationship between the love of money (measured at Time 1) and unethical behavior (measured at Time 2) (the Love of Money → Machiavellianism → Unethical Behavior). Further, this mediating effect existed for business students (n = 198) but not for psychology students (n = 100), for male students (n = 165) but not for female students (n = 133), and for male business students (n = 128) but not for female business students (n = 70). Moreover, when examined alone, the direct effect (the Love of Money → Unethical Behavior) existed for business students but not for psychology students. We concluded that a short business ethics intervention may have no impact on the issue of virtue (wisdom). Thomas Li-Ping Tang (Ph.D., Case Western Reserve University) is a Full Professor of Management in the Department of Management and Marketing, Jennings A. Jones College of Business at Middle Tennessee State University (MTSU). He has taught Industrial and Organizational Psychology at National Taiwan University and at MTSU. Professor Tang teaches, has taught, MBA/EMBA courses in China (Hong Kong and Shanghai), France (Nantes), and Spain (Valencia). He serves, has served, on 6 editorial review boards and reviews papers for 28 journals. His research interests focus upon compensation, the Love of Money, business ethics, pay satisfaction, and cross-cultural issues. He has published more than 100 journal articles in top behavior sciences and management journals (e.g., Journal of Applied Psychology, Personnel Psychology, Human Relations, Journal of Management, Management Research, Management and Organization Review, Journal of Organizational Behavior, and Journal of Business Ethics.) and presented more than 190 papers in professional conferences and invited seminars. He was the winner of two Outstanding Research Awards (1991,1999) and Distinguished International Service Award (1999) at Middle Tennessee State University. He also received the Best Reviewer Awards from the International Management Division of the Academy of Management in Seattle, WA (2003) and in Philadelphia, PA (2007). Yuh-Jia Chen (Ph.D., Columbia University) is an Associate Professor of Business Statistics in the Rinker of School of Business at Palm Beach Atlantic University, West Palm Beach, FL 33416. He has taught statistics at Middle Tennessee State University and Teachers College, Columbia University. His research interests lie in money attitude, choice and decision-making, risk-taking behavior, and compensation. His publications have appeared in behavior sciences and management journals (e.g., Journal of Behavioral Decision Making, Journal of Business and Psychology, and Journal of Business Ethics).     

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。     

The Effect of Implicit Moral Attitudes on Managerial Decision-Making: An Implicit Social Cognition Approach

This article concerns itself with the relationship between implicit moral cognitions and decisions in the realm of business ethics. Traditionally, business ethics research emphasized the effects of overt or␣explicit attitudes on ethical decision-making and neglected intuitive or implicit attitudes. Therefore, based on an implicit social cognition approach it is important to␣know whether implicit moral attitudes may have a substantial impact on managerial ethical decision-making processes. To test this thesis, a study with 50 participants was conducted. In this study the participants were asked to work on a deliberative managerial ethical decision-making task, in which they had to decide on one of two options. Implicit moral attitudes towards the two options were measured using the implicit association test (IAT). A semantic differential scale was used to diagnose explicit moral attitudes towards the two options. Each step taken within the deliberative decision-making process, as well the decision itself, was assessed using a scoring model-based decision analysis and a decision-making questionnaire. The results of this study show that implicit moral attitude has a great influence on the deliberative ethical decision-making process. The derived conclusion is that complex and deliberative decision-making processes in the context of business ethics can be affected by implicit social cognitions such as implicit moral attitudes.     

一种基于DSP控制的数控高压电源的设计

介绍了一种应用DSP控制实现行波管高压电源的设计。通过应用TMS320F2812实现移相软开关技术和功率因素校正(PFC)技术,降低了电源的开关损耗和整体尺寸。分析了控制原理,并且说明了基于DSP的移相控制方法。     

Testing a Model of Behavioral Intentions in the Republic of Macedonia: Differences Between the Private and the Public Sectors

In this study, we developed a model of unethical behavior intentions, collected data from managers of the private (n = 208) and the public (n = 307) sectors in the Republic of Macedonia, and tested our model across these two sectors. Results suggested that for both sectors, unethical behavior intentions were not related to the love of money and corporate ethical values, whereas irritation was negatively related to life satisfaction. Moreover, corporate ethical values were related to life satisfaction for the private sector only, whereas the love of money and unethical behavior intentions were related to irritation for the public sector only. Managers in the private sector had higher corporate ethical values, lower unethical behavior intentions, lower irritation, and higher life satisfaction than those in the public sector. There was no difference in the love of money. There were more bad apples in the public sector (34.85%) than in the private sector (23.56%). The strongest factor of unethical behavior intentions in the private and the public sectors␣was theft and corruption, respectively. Finally, for the culture-free (etic) model, the love of money was positively related to irritation. Corporate ethical values had a positive “double-whammy” effect: reducing irritation and enhancing life satisfaction. Unethical behavior intentions were positively related to irritation (a mediator), which was negatively related to life satisfaction. Our theory provides new insights regarding doing business in the Republic of Macedonia.

基于数值拟合的PCMA系统自干扰信号幅度估计算法

针对卫星成对载波复用（PCMA）系统中的自干扰信号,提出基于数值拟合方法的幅度估计算法,并对其性能进行了分析。该算法适用于非对称和对称PCMA系统,可以有效抵消自干扰信号与有用信号互相关项不为零引起的误差,并且不会引入相位噪声,更符合工程应用实际。仿真结果表明,在干信比为12 dB的非对称PCMA系统中,该算法仍能获得较好的幅度估计精度,信噪比损失始终在0.1 dB左右。