Personalized ventilation (PV) has a significant potential for improving thermal comfort, inhaled air quality and energy efficiency. A novel PV air terminal device (ATD) based on the function of bath showers was evaluated to determine discomfort related to thermal sensation, draughts, dry eyes and skin irritation. The supply air characteristics and thermal comfort were analyzed using objective and subjective experiments in an environmental chamber. Thirty college students participated in the subjective experiments. Results showed that the proposed PV ATD could provide uniform distributions of air velocity at the human head and chest. Compared with the conventional round-monitor panel ATD, the proposed PV ATD can provide an improved cooling effect, wherein overall thermal sensation was reduced by 0.56 scale, showing a potential for energy saving. Moreover, the proposed PV ATD could produce a highly uniform distribution of local thermal sensation (LTS). Compared with the conventional PV, the proposed PV ATD could reduce the standard deviation of distribution of LTS by 41.7% and reduce overall thermal discomfort by 45.5%. Fewer sick building syndrome symptoms at a lower supply airflow rate of 6.3 L/s was achieved. Consequently, the proposed PV ATD could improve the comfort performance with the usage of lower supply airflow rates.
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<p>This research aims to study the impact of the target's ESG score on the acquirer's ROA and stock price changes after M&A deals by regressing the percentage change of acquirer's performance change against the target's ESG score and a set of control variables. This research contributes to the current literature by exploring whether this impact is influenced by the acquirer's pre-M&A ESG level through two methods—expressing the coefficient of the target's ESG as s linear function of the acquirer's ESG and dividing the deals into two groups according to the acquirer's ESG level. The result of shows that the impact of the target's ESG score on the acquirer's ROA change is significant at 95% confidence level and varies for low-ESG and high-ESG acquirer groups. Although most acquirers suffer ROA declines one year after the deals, the ROA decline is aggravated for low-ESG acquirers but is relieved for high-ESG acquirers. This discrepancy can be attributed to the temporary integration costs that are higher for low-ESG acquirers than for high-ESG peers if the target's ESG level increases. Besides, this research concludes that the impact of the target's ESG score does not have a significant impact on the acquirer's stock price change before and after an M&A deal.</p>
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