VHDL在数字电路设计中的应用

文章介绍了VHDL语言及其基本特点,讨论了VHDL语言在数字电路设计中的诸多优点,通过十位计数器的实例介绍了在MAX+plus Ⅱ环境下运用VHDL语言设计实际电路的具体方法和步骤.结果表明VHDL语言应用于数字电路仿真的灵活性及直观性.     

EDA技术与数字电子技术教学的有机整合

为解决传统数字电子技术教学中存在的问题,本文提出了将数字电子技术与EDA技术进行有机整合的全新教学思路。与传统的教学方式相比,将EDA技术引入数字电子技术的理论和实践教学环节,不但改善了教学手段,丰富了教学内容,提高了教学效果,而且能激发学生的学习热情,培养学生的创新能力。     

串行A/D与8255A接口的设计与实现

8255A并行接口芯片是一种十分通用的接口芯片,SPI总线作为一个全双工的串行接口,在工业控制中得到广泛应用.文章给出了一种采用8086处理器控制8255A来模拟SPI总线,实现按字节传输数据,控制MAX1270 A/D的设计方法,并给出了详细的设计与实现过程.     

Limited attention,salient anchor,and the modified MAX effect: Evidence from Taiwan’s stock market

The literature documents that investors overweighing the right-tail probability pursue positively skewed assets, leading to lottery-like stocks overpriced. We find that the lottery anomaly primarily exists among stocks further away from their 52-week high prices. After attention-grabbing events with gambling features, inattentive retail investors become aware of certain stocks’ gambling traits and then net buy more lottery-like stocks, which further promotes the lottery anomaly. However, when such stocks are near their 52-week high price, retail investors tend to place little weight on the likelihood that the stock price will rise beyond the 52-week high, thereby reducing the skewness preference. Overall, our findings suggest that the perception of the 52-week high price as a price ceiling influences skewness preference, and that investor attention is the main determinant of whether anchoring bias affects skewness preference.     

Political sentiment and MAX effect

The well-known “MAX effect” documents that stocks with high maximum daily returns in the past month underperform those with low maximum daily returns. We show that such an effect varies with firm-level political sentiment. Among firms with low political sentiment, the usual MAX strategy gives a monthly risk-adjusted return of 1.52% and is statistically significant. However, the MAX effect weakens substantially or even reverses for firms with high political sentiment. Our findings provide novel guidance for trading on the MAX effect. Moreover, the results challenge the usual sentiment-based explanation for the MAX effect. Further evidence suggests that the prospect theory or investors’ underreaction to news may be consistent with our findings, although these channels cannot empirically explain the impact of political sentiment.