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The purpose of this paper is to develop a new oil‐in‐water (O/W) emulsion used for alpha phase brass, which can increase the antiwear and anti‐galling abilities of the rollers, and improve the surface quality of the rolled brass sheet. The aim is to evaluate the tribological performance of new kind of O/W emulsion for the hot rolling of alpha brass, which provides the fundamental information for the selecting of new chemical group, and to understand the lubrication mechanism of the used rolling emulsion and to correlate the laboratory findings with those of industrial rolling of alpha phase brass.

According to the hydrophile‐lipophile balance theory and the evaluation results of friction, wear and lubrication using a four‐ball tribometer, a novel O/W emulsion was developed for the hot rolling process of CuZn₃₂(ASTM C26200) and CuZn₃₀(ASTM C26000) alloys by controlling the composition of the emulsion, such as emulsifying, antiwear, extreme pressure, antirust and so on. By scanning electron microscope (SEM), energy‐dispersive X‐ray (EDX), and roughness profile the tribological mechanism were studied.

The production result proved that it was easy to control the accuracy and size of the brass sheet because of the emulsion‐jet to the roller surface directly and in succession. Polyol with hydroxyl group is found to provide better lubrication and lower coefficient of friction. The actual hot rolling results proved that it was easy to control the accuracy and size of the brass sheet with the emulsion jet. The morphologies and roughness profile of the copper sheet surface were observed and measured by SEM and topographic meter under different lubricant conditions. The in situ results supported the selection of compositions of O/W emulsion. The suitable temperature of feed emulsion is over 20°C.

The tribological mechanism of friction modified emulsion is not still clear. The thermal mechanical properties of rollers under this kind of emulsion are also worth studying in the future.

Understanding the tribological behaviour of O/W emulsion, will be useful for emulsion chemists, tribologists and rolling mill users.

The current study shows new compositions of O/W emulsion used for hot rolling of alpha phase brass.

Using Shanghai as an example, the purpose of this paper is to perform grade evaluation and zoning for different land use spaces by GIS by identifying the major restrictive factors in current socio-economic development.

Based on short plate theory, 11 major restrictive indicators that will restrict socio-economic development in Shanghai are identified, and urban land is divided into four subspaces and the restrictive grade evaluation of urban land subspace is achieved with GIS spatial analysis; then, land development zoning is processed according to the results of the evaluation.

In all, 11 major restrictive indicators that will restrict socio-economic development in Shanghai are identified. The restrictive grades of the agricultural production, urban construction and ecological protection subspaces are mainly common, weak and weaker, and the relatively strong restrictive grade of industrial development subspace is mainly concentrated in the more developed industrial districts (counties). The areas of the common and good regions of constructive development and ecological development zones account for 87.4 and 98.3 per cent of each total area, respectively, and urban land still has significant development potential in Shanghai.

This paper proposes various urban land space evaluations and zoning strategies based on restrictive indicators and perspectives, enriching the ideas and methods of urban land use evaluation.

This study examines the impact of industry-university-research (IUR) cooperation on the financial performance of pharmaceutical enterprises in China. The current literature has primarily focused on the effects of IUR cooperation on innovative performance, often overlooking its financial implications. This research aims to address this gap by analyzing how such collaborations affect financial outcomes.

Using a difference-in-differences (DID) approach, this study analyzes data from publicly listed Chinese pharmaceutical companies between 2011 and 2022. The analysis includes robustness checks and heterogeneity analysis to validate the findings.

Empirical results indicate that IUR cooperation significantly improves the financial performance of pharmaceutical enterprises. Firms engaged in IUR collaborations exhibit a notable improvement in return on assets (ROA) and return on equity (ROE). The research findings confirm that absorptive capacity (internal factors) and the external knowledge resource base (external factors) enhance the positive impact of IUR collaboration on the financial performance of pharmaceutical enterprises. Additionally, the heterogeneity analysis based on regional levels of intellectual property protection demonstrates a stronger positive influence of IUR cooperation on the financial performance of pharmaceutical enterprises in regions with greater levels of intellectual property protection.

This study contributes to the understanding of the financial benefits of IUR cooperation in the biopharmaceutical sector. By highlighting the significance of absorptive capacity, external knowledge resource base and regional intellectual property protection, this study offers valuable insights for policymakers and business leaders aiming to cultivate effective industry–academia collaborations.

This paper aims to improve the corrosion resistance performance and stability of PbO₂ electrodes in chloride wastewater.

The morphology of PbO₂-ZrO₂ nanocomposite electrodes was observed by scanning electron microscopy (SEM). The open circuit potential (OCP) curves, anodic polarization curves, electrochemical impedance spectra, accelerated life tests, weight-loss tests and reusability tests were used to study the corrosion resistance properties and stability of PbO₂-ZrO₂ nanocomposite electrodes in NaCl solution.

SEM showed that the surface morphology of PbO₂-ZrO₂ nanocomposite electrodes became compacted and smooth. Electrochemical tests showed that ZrO₂ nanoparticles could increase the OCP, corrosion potential and charge transfer resistance, and decrease the corrosion current density in 3.5 Wt. per cent NaCl electrolyte solution. Besides, PbO₂-ZrO₂ nanocomposite electrodes showed high reusability for acetamiprid degradation, the accelerated service life could reach 146 h, which was almost 3.3 times longer than that of PbO₂ electrodes (44 h), weight-loss tests showed that the corrosion resistance for PbO₂-ZrO₂ nanocomposite electrodes was 2.3 times as compared to PbO₂ electrodes.

By the codeposition of ZrO₂ nanoparticles, the corrosion resistance performance and stability of PbO₂ electrodes in NaCl electrolyte were improved.