sj-docx-1-psp-10.1177_01461672231199161 – Supplemental material for Give Me a Straight Answer: Response Ambiguity Diminishes Likability

Supplemental material, sj-docx-1-psp-10.1177_01461672231199161 for Give Me a Straight Answer: Response Ambiguity Diminishes Likability by Deming Wang and Ignazio Ziano in Personality and Social Psychology Bulletin</p

Novel Approach for Suppressing Cutting Dust Using Foam on a Fully Mechanized Face with Hard Parting

<div><p>The cutting dust created by the shearer drum is the main source of dust on a fully mechanized coal face. However, overexposure to respirable dust may cause pneumoconiosis in coal workers, while coal dust may lead to serious explosions. The fully mechanized face known as II1051 Face, found at the Zhuxianzhuang Coal Mine located in east China, generates dust by way of the drum on a high-power shear. The coal seam involves hard rock parting so there is a high concentration of cutting dust when the shearer is working. Thus, we developed a new foam dust suppression method with an air self-suction system based on an analysis of the dust generation characteristics that suppressed the shearer cutting dust level. The new foam system was evaluated in a field test where the dust concentration was measured at two points. The results showed that the foam reduced the cutting dust concentration significantly. The respirable dust exposure levels were reduced from 378.4 mg/m³to 53.5 mg/m³and the visibility was enhanced dramatically. Thus, we conclude that our new foam system is highly efficient at capturing cutting dust, and it has a much lower water consumption.</p> <p>[Supplementary materials are available for this article. Go to the publisher's online edition of <i>Journal of Occupational and Environmental Hygiene</i> for the following free supplemental resource: Contact angle of cutting dust sample, migration trajectory of cutting dust, technological process for suppressing shearer cutting dust using foam, the layout of the foam dust suppression system on coal face, real object of the air self-suction type foam generator, the special foam nozzle used for shearers, relevant experimental results of the air self-suction foam system.]</p> </div

Weighting scores of different experts.

<p>Weighting scores of different experts.</p

The interface of the VB program after data input.

<p>The interface of the VB program after data input.</p

Experts’ profiles and corresponding scores.

<p>Experts’ profiles and corresponding scores.</p

Basic events of the CDE fault tree.

<p>Basic events of the CDE fault tree.</p

Schematics of the CDE fault tree.

<p>(A) General diagram; (B) Details of intermediate event A; (C) Details of intermediate event B.</p

Fuzzy numbers representing linguistic variables.

<p>Fuzzy numbers representing linguistic variables.</p

The judgments of the three experts.

<p>The judgments of the three experts.</p

In Situ FTIR Study of Real-Time Changes of Active Groups during Oxygen-Free Reaction of Coal

The distribution of functional groups in two different rank coal samples and their real-time changes during the oxygen-free reaction of coal were tested. An in situ FTIR system was designed to test the real-time changes of functional groups during coal reaction. The real-time changes of aliphatic hydrocarbon groups and oxygen-containing groups were analyzed using the in situ FTIR method. The results show that the distribution of functional groups and their changes are various for different ranks of coals. The quantity of active groups in low-rank coals is larger than that in high-rank coals. For the anthracite coal sample, the quantities of aliphatic hydrocarbon and oxygen-containing groups increase with the rise of coal temperature. For the lignite coal sample, the quantity of aliphatic carbon groups decreases from 30 to 70 °C, then increases with the temperature rise. The oxygen-containing groups of the lignite coal sample have two different changing trends, that is, an increase with temperature rise, and a decrease at the initial temperature stage, followed by increasing with temperature rise. These phenomena are resulted from the difference of chemical activities of various active groups. This study provides a new method for further study of coal reaction at the level of active groups and explains the generation process of gaseous products during the oxygen-free reaction of coal