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The conjoint effect of the binary inhibitors molybdate and phosphate on Type A20 carbon steel has been studied, using electrochemical measurement tests. The compatibility between molybdate and phosphate can achieve synergistic benefits, and the inhibitive mechanism was investigated.

The conjoint effect of the binary inhibitors molybdate and phosphate on Type A20 carbon steel has been studied, using electrochemical measurement tests. The compatibility between molybdate and phosphate can achieve synergistic benefits, and the inhibitive mechanism was investigated.

To study the corrosion behavior and discuss the corrosion mechanism of No. 20 carbon steel in water in the presence of sulfide ions.

The mass‐loss method, electrochemical tests and surface analysis were used to study the corrosion behavior and discuss the corrosion mechanism of No. 20 carbon steel in water in the presence of sulfide ions.

General corrosion occurred when No. 20 carbon steel was immersed in both test solutions (concentrated sample with S²⁻ added to 0.8 mg/L, and pure concentrated sample with no S²⁻ added). The presence of S²⁻ in test solutions accelerated the corrosion rate of No. 20 carbon steel.

In order to prevent No. 20 carbon steel in water with S²⁻ from corroding, S²⁻ must be removed.

It was found that the presence of S²⁻ in test solutions accelerated the corrosion rate of No. 20 carbon steel in this paper. Therefore, when water containing sulfide ions is used as the source of make‐up water and cooling water, S²⁻ in water must be removed to prevent the pipelines and facilities from corroding. This means the research results can offer theoretical guidelines for the prevention of pipelines and facilities in the power plant from corroding.

The inhibition mechanism and the relationship between the inhibition efficiency of para‐chlorobenzene nitriles on carbon steel in hydrochloric acid, and their molecular structure, were studied by microscopy and quantum chemistry calculations. The inhibition of carbon steel was achieved by chemisorption of the para‐chlorobenzene nitriles onto the surface of the carbon steel. The greater was the σ_N (absolute value) and the less the E_LUMO value, the greater was the inhibition efficiency.

The purpose of this paper is to present a study of corrosion inhibition of carbon steel in hydrochloric acid by some benzene nitriles using the quantum chemistry calculation.

The molecular structure and inhibition mechanism, and the relationship between inhibition efficiency of some benzene nitriles on carbon steel in the hydrochloric acid, were studied from a microcosmic viewpoint using the quantum chemistry calculation.

The calculation results showed that the inhibition efficiency of benzene nitriles on carbon steel in hydrochloric acid could be expressed by σ_N and E_LUMO, and the greater σ_N absolute value and the lesser the value of E_LUMO, then the greater the efficiency of the inhibitor. The regression equation for benzene nitriles is: η=2.665056−0.4447122E_LUMO−10.92817σ_N r=0.9953128.

The paper offers insights into the application of the quantum chemistry calculation.

This study quantitatively investigates the impacts of digital and learning orientations on supply chain resilience (SCR) and firm performance (FP), aiming to fill the gaps in understanding their specific impacts in the context of Industry 4.0 developments and supply chain disruptions.

This study utilized survey techniques and structural equation modelling (SEM) to gather and analyse data through a questionnaire based on a seven-point Likert scale. Hypotheses were formulated based on an extensive literature review and tested using Amos software.

The study confirms SCR’s significant impact on FP, aligning with existing research on resilience’s role in organizational competitiveness. This study uncovers the nuanced impacts of digital and learning orientations on SCR and FP. Internal digital orientation (DOI) positively impacts SCR, while external digital orientation (DOE) does not. Specific dimensions of learning orientation – shared vision (LOS), open-mindedness (LOO) and intraorganizational knowledge sharing (LOI) – enhance SCR, while commitment to learning (LOC) does not. SCR mediates the relationship between DOI and FP but not between DOE and FP.

This research focuses on digital and learning orientations, recommending that future studies investigate other strategic orientations and examine the specific contributions of various digital technologies to SCR across diverse contexts.

The empirical findings emphasize the significance of developing internal digital capabilities and specific learning orientations to enhance SCR and FP, aligning these initiatives with resilience strategies.

This study advances knowledge by distinguishing the impacts of internal and external digital orientations and specific learning dimensions on SCR and FP, offering nuanced insights and empirical validation.