The Impact of Emotional Leadership on Subordinates' Job Performance: Mediation of Positive Emotions and Moderation of Susceptibility to Positive Emotions.

Employees' emotions have an important effect on their job performance, thus leaders can influence subordinates' emotions through emotional contagion and emotional appeal and ultimately affect their job performance. Based on the affective events theory, this study examines the impact of emotional leadership on the subordinates' job performance, the mediating role of subordinates' positive emotions, and the moderating role of susceptibility to positive emotion. Hierarchical regression analysis of 362 valid questionnaires showed that: (1) emotional leadership has a significant positive effect on subordinates' job performance; (2) subordinates' positive emotion partially mediated the relationship between emotional leadership and subordinates' job performance; (3) subordinates' susceptibility to positive emotion positively moderated the relationship between emotional leadership and positive emotions, i.

Fast measurement of the laser beam quality factor based on phase retrieval with a liquid lens.

In this paper, a new method for measuring the beam quality (M) of lasers based on phase retrieval with a liquid lens is proposed. With intensity profiles obtained under different focal lengths in a certain position, a variable-focus iterative retrieval algorithm is established for the reconstruction of the complex amplitude. Then M can be calculated with the angular spectrum theory.

Heat suppression of the fiber coating on a cladding light stripper in high-power fiber laser.

We present a theoretical model for the thermal effect of the fiber coating on a high-power cladding light stripper, which is fabricated by chemical etching. For the input and output of the fiber coating, a novel segmented corrosion method and increasing attenuation method are proposed for heat suppression, respectively. The relationship between the attenuation and temperature rise of the fiber coating at the output is experimentally demonstrated.

Suppressing the influence of charge-coupled device vertical blooming on the measurement of laser beam quality factor (M) of a near-infrared laser.

In this paper, a new method, which is based on reconstructing the original intensity distribution of a laser with images captured by a charge-coupled device (CCD) in two orthogonal directions, is proposed for suppressing the influence of CCD vertical blooming on the measurement of the laser beam quality factor (M). A simplified theoretical model for the distribution of CCD blooming is also proposed. With the proposed method and model, the influence of CCD vertical blooming on the measurement of M is simulated.

Determination of the laser beam quality factor (M) by stitching quadriwave lateral shearing interferograms with different exposures.

A complete complex amplitude reconstruction method for the determination of the laser beam quality factor M based on the multiple exposure of a quadriwave lateral shearing interferometer (QWLSI) is presented. The theoretical analysis and simulation of the influence of the information in the small signal area on the calculation of the M factor is provided. The experimental results demonstrate that the new method can be an accurate means to measure the M factor.

[The effect of the metallic dental materials on magnetic resonance imaging].

Objective: To explore the influence of conventional metal materials in oral cavity on brain magnetic resonance imaging (MRI).

Methods: Four kinds of metal materials (metal ligature wire, forging hard and slotless denture, casting nichrome denture, casting copper alloy denture) in oral cavity were scanned through MRI. FSE sequence T1 weighted imaging (FSE T1), EPI diffusion-weighted imaging (DWI) sequence of ordinary, Propeller DWI imaging were used.

[The effect of different roughness of crown alloy materials on the adhesion of predominant peri-implant subgingival bacteria].

Purpose: To investigate the effect of two crown metal alloys with different roughness on the adhesion of predominant subgingival bacteria.

Methods: Au- Pt alloy and Ni-Cr alloy with different roughness were attached to the Ti implant material and incubated under anaerobic condition. The adhesion of four subgingival predominant bacteria: Porphyromanus gingivalis(Pg), Actinobacillus actinomycet-emcomitans (Aa), Prevotella intermedia (Pi) and Fusobacterium nuclertum (Fn), was detected, respectively.