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The objective of the present work was to study the influence of chemical compositions of five naphthenic acids (NAs) extracted from Liaohe crude oil on their corrosivity.

Fourier‐transform infrared spectrometry and electron impact mass spectrometry were used to characterize the chemical structures and compositions if five NAs. The corrosivities of the NAs were assessed by stagnant NA corrosion (NAC) tests. An attempt was made to identify any correlation between the chemical composition of the NAs and their corrosiveness.

The acidic species in all five NA samples were saturated aliphatic and naphthenic acids and the amount of aromatic and unsaturated acids was negligible. A relationship between the carboxylic acid distribution and the molecular weight was obtained. Most of the carboxylic acids in five NAs contained 0‐3 ring structures. NAs with lower molecular weight and fewer ring structures usually were more corrosive.

The findings have important implications for assessing the corrosivity of acidic crude oils from various resources.

Water-lubricated rubber bearing is one of the most appropriate bearings for underwater use. The most popular design used widely today is the straight fluted rubber bearing. The special configuration leads to partial hydrodynamic lubrication and low load capacity. A new bearing bush structure with two cavities which is favorable for constructing continuous hydrodynamic lubrication was designed and studied. The paper aims to discuss these issues.

A new bearing bush structure with two cavities which is favorable for constructing continuous hydrodynamic lubrication was designed. The apparatus for studying the tribological behaviors of the two types of water-lubricated rubber bearings has been devised and established in the paper. The experimental studies on the tribological properties of the rubber bearings have been conducted under different loads and velocities. The eccentricity ratio of the new structure rubber bearing with two cavities was measured in experiment and the load capacity was calculated by numerical simulation.

The experimental results show that the friction coefficient decreases with increasing velocity; the friction coefficient increases sharply with the rising temperature, the friction coefficient increases at first and then decreases with increasing load for fluted rubber bearings. The numerical results were in good agreement with the experimental results. The numerical results show that complete hydrodynamic lubrication can be formed in the new designed rubber bearing with two cavities. The experimental and numerical results all indicate that there is an appropriate bearing clearance which the friction coefficient is minimum and the load capacity is maximum.

A new bearing bush structure with two cavities which is beneficial to constructing continuous hydrodynamic lubrication film was designed. A new apparatus for studying the tribological behaviors of the two types of water-lubricated rubber bearings has been devised and established. Experimental and numerical study on the new structure rubber bearing were conducted in the paper.

The purpose of this paper is to elaborate a unique approach to researching into the mind of Mao and, at the same time, review of papers in this issue of Chinese Management Studies. Through this paper, the editor hopes to communicate the three simple yet important criteria that should feature in the selection of future papers.

Values of scholarly community as embodied within the 1,040-year-old Yuelu Academy are first introduced as translated by the joint efforts of the authors. The relevance of such cultural values for modern scholars is then discussed. This is followed by the author highlighting the unique research opportunity (documentary study and analysis) as offered by the Shaoshan Mao Memorial Museum. Perhaps it is possible to get a hint of the thinking of Mao Zedong. Finally, consistent with the earlier two review papers, a bird-eye view of key findings is given of the nine selected papers, namely, on politics, state-owned enterprises, team, socialism, planning, human resource management, leadership, competition and knowledge.

Clearly the modern scholarly community will benefit by imbibing the values of the Yuelu Academy with their strong emphasis on ethical behaviors, diligence and the deep pursuit of scholarly inquiry. Also, the Chinese, by documenting the writings of Mao Zedong (Shaoshan Museum), made him perhaps the most well-documented strategist for in-depth research. From the latest review of manuscripts, authors have yet to incorporate Chinese cultural, historical and social background as an integral part of their papers.

This paper calls for scholars to try to reintegrate Chinese cultural values back into research on Chinese management. Professor Warner Malcolm, Cambridge University, a contributing author wrote to the journal saying in essence: “[…] Chinese management is […] deeply rooted in Chinese cultural norms […]” Hopefully more of the submissions will begin to reflect such an orientation.

The purpose of this paper is to describe a simulation and experimental research concerning the effect of recess depth on the lubrication performance of a hydrostatic thrust bearing by constant rate flow.

The computational fluid dynamics and finite volume method have been used to compute the lubrication characteristics of an annular recess hydrostatic thrust bearing with different recess depths. The performances are oil recess pressure, oil recess temperature and oil film velocity. The recess depth has been optimized. A test rig is established for testing the pressure field of the structure of hydrostatic thrust bearing after recess depth optimization, and experimental results show that experimental data are basically identical with the simulation results, which demonstrates the validity of the proposed numerical simulation method.

The results demonstrate that the oil film temperature decreases and the oil film pressure first increases and then decreases with an increase in the recess depth, but oil film velocity is constant. To sum up comprehensive lubrication performance, the recess depth of 3.5 mm is its optimal value for the annular recess hydrostatic thrust bearing.

The computed results indicate that to get an improved performance from a constant flow hydrostatic thrust bearing, a proper selection of the recess depth is essential.

Employees play a central role in firms’ knowledge transferal, but knowledge-sharing brings significant costs for employees. Thus, this study aims to explore the components of firms’ incentive systems and how these influence employees’ knowledge-sharing, and also to test whether employees’ knowledge-sharing intentions transform into better knowledge transfer performance at the firm level.

This study collected data in China, and 219 usable questionnaires were collected. Then, this study used a structure equation model by LISREL for hypotheses testing.

This study finds that positive economic incentives, positive relational incentives and negative relational incentives all increase employees’ knowledge-sharing intentions, contributing to firms’ improved knowledge-transfer performance. Thus, both positive and negative incentives and both economic and relational incentives exert influences on employees’ knowledge-sharing activities.

Because employees have both material and emotional needs and always want to approach good things and avoid bad things, firms should take measures to make their incentive systems more comprehensive. Then, employees can be motivated to share their knowledge effectively.

Existing studies have mainly explored the effects of positive economic incentives on knowledge transferal. Because individuals have both a promotion self-regulatory focus associated with an approach motivation and a prevention self-regulatory focus associated with an avoidance motivation, and because they have both material and emotional needs, this study classifies incentives into three types and confirms their effectiveness for motivating employees to share knowledge.

Based on the attention-based view (ABV), this study examines the mechanism of external pressure and internal managerial interpretation affecting the promotion of green entrepreneurial orientation (GEO) of agricultural enterprises.

Based on data collected from 208 agricultural enterprises in China, the conceptual model was tested by using hierarchical regression.

The results show that managerial interpretation can affect the promotion of GEO. Command and control regulation, market-based regulation and green market pressure are important external pressures that affect the promotion of GEO. In addition, managerial interpretation mediates the relationship between command and control regulation and GEO, market-based regulation and GEO, as well as green market pressure and GEO.

This study proposes a key path for promoting the adoption and implementation of GEO by agricultural enterprises. The research results provide experience for emerging and developing countries to promote the GEO of agricultural enterprises, which is helpful to alleviate the environmental problems caused by the development of agricultural enterprises.

For the first time, this study introduced the ABV into the research of GEO. The research results enrich the theoretical perspective of GEO and expand the research field of the ABV. In addition, this study fills the research gap that existing research has not paid enough attention to the internal driving factors of GEO and opens the black box between the external pressure and GEO.

Information carriers (including mass media and We-Media) play important roles in information diffusion on social networks. The purpose of this paper is to investigate changes in the dissemination of information combing with data analysis.

This work analyzed nearly 200 years of coverage of different information carriers during different periods of human society, from the period of only mouth-to-mouth communication to the period of modern society. Information diffusion models are built to illustrate how the information dynamic changes with time and combined box office data of several movies to predict the process of information diffusion. In addition, a metric is defined to identify which information would become news in the future.

Results show that with the development of information carriers, information spreads faster and wider nowadays. The correctness of the metric proposed has been validated.

The structure of social networks influences the dissemination of information. There are an enormous number of factors that influence the formation of hotspots.

The results and conclusion of this work will benefit by predicting the evolution of information carriers. The metric proposed will aid in searching hot news in the future.

This work may shed some light on a better understanding of information diffusion, spreading not only on social networks but also on the carriers used for the information spreading.

Magnetic fluid has excellent function used as lubricants in bearings and mechanical seals, and the purpose of this study is to investigate the sealing performance in a spiral groove mechanical seal lubricated by magnetic fluid.

The sealing characteristic parameters of the lubricating film between the end faces of two sealing rings were calculated based on the Muijderman narrow groove theory for a spiral groove mechanical seal lubricated by magnetic fluid. The film thickness was determined according to the balanced forces on the rotating ring, and the effects of operating conditions, intensity of the magnetic field and diameter of nanoparticles on the sealing characteristics were investigated.

It has been found that the intensity of magnetic field has a great effect on the viscosity of magnetic fluid, film thickness and friction torque while has a little effect on the mass flux of magnetic fluid. The film thickness, mass flux of magnetic fluid and friction torque increase with the increasing volume fraction, rotating speed and diameter of magnetic nanoparticles in magnetic fluid. The mass flux of magnetic fluid decrease with the increasing closing force, and the friction torque decreases with the increase of media pressure.

The change of intensity of magnetic field can affect the viscosity of magnetic fluid and then changes the sealing performance in a mechanical seal lubricated by magnetic fluid. To reduce the mass flux of magnetic fluid and friction torque, the volume fraction, diameter of solid magnetic particles and film thickness should be 5%–7%, 8–10 nm and 2–9.3 µm, respectively.

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-02-2023-0032/

The purpose of this paper is to discuss characteristics of organic food value chain governance and policy tools that can increase the supply of good quality of agri-products.

This paper discusses a national organic food supply system in China, identifying the link between an organization form with a social confidence crisis and information asymmetry as the main challenges. It develops an analytical model of the market structure of organic certification based on the contract theory, which considers the certification incentive driven by both farmers and processors. Two cases of raw milk producers and processors provide empirical data.

The argument which is brought forward is that product information asymmetry together with strict requirement for ensuring organic food integrity brings the organic milk value chain into a highly integrated organization pattern. A tight value chain is effective in the governance of organic food supply chain under third party certification (TPC), while a loose value chain discourages producing organic products because of transaction costs. TPC is found to be a positively correlation with a tight value chain, but it brings high organizational cost and it raises cost for consumers.

This is the first paper discussing the governance of organic food value chain in Chinese milk industry.

The purpose of this study was to examine the influence of adopted corporate social responsibility (CSR) constructs, which include economic, legal, ethical and philanthropic responsibilities, on the intended buying behaviour of Malaysian consumers. The study also aims to investigate the perceived value of whether the consumers considered an organisation’s CSR initiatives before deciding any purchase of products or services.

An online Google form survey successfully obtained 295 usable responses through a snowballing and networking approach. Statistical analyses such as Pearson correlation, ANOVA and standard multiple regression were used to examine the correlation and the strength of relationship, as well as the prediction between the CSR attributes and their impact on consumer buying behaviour.

The results represented a significant positive association between all the four constructs (social, ethical, legal and philanthropic) and consumer intended buying behaviour. These constructs also significantly contributed to the prediction of consumer behaviour towards the CSR initiatives. Conversely, the demographic profile of consumers had no effect on the relationship between CSR and consumer buying behaviour.

Examining basic concepts of CSR awareness and understanding might add to the flavour and rigour of this study, which future research should consider. The positivist approach of the current research could be supplemented with a more interactive qualitative in-depth study investigating why and how consumers behave.

The implication for Malaysian companies is that it is imperative for their long-term survival that a strategic view, rather than just a tactical, reactive or operational view, is taken of their CSR activities. Furthermore, it will help organisations to confidently predict positive intentions towards the sales of goods and services.

The outcome of this study has filled the CSR lacuna in the context of a developing country, as well as adding new insights into the influence and perceived value of CSR on intended consumer buying behaviour. Consumers, irrespective of their age and background, are getting wiser and cautious in purchasing products from companies which are CSR-oriented, in particular, in relation to social, legal, ethical and philanthropic perspectives.