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Automatic classification of Web pages is an effective way to organise the vast amount of information and to assist in retrieving relevant information from the Internet. Although many automatic classification systems have been proposed, most of them ignore the conflict between the fixed number of categories and the growing number of Web pages being added into the systems. They also require searching through all existing categories to make any classification. This article proposes a dynamic and hierarchical classification system that is capable of adding new categories as required, organising the Web pages into a tree structure, and classifying Web pages by searching through only one path of the tree. The proposed single‐path search technique reduces the search complexity from θ(n) to θ(log(n)). Test results show that the system improves the accuracy of classification by 6 percent in comparison to related systems. The dynamic‐category expansion technique also achieves satisfying results for adding new categories into the system as required.

The purpose of this paper is the reliability analysis for systems with dependent gamma degradation process and Weibull failure time.

Consider a life testing experiment in which a sample of n devices starts to operate at t=0 and the data are available on failure time and failure-evolving process on each individual, called in some contents wear or degradation. Ignoring the between performance characteristics dependency structure may lead us to different reliability estimations, while the dependency justly exists. In previous research, dependency between the degradation process and hard failure time has been studied in limited detail (special closed form expression). Thereafter, the dependency between two degradation processes with the same structure (gamma process) in a system is considered using the copula function.

The results indicate that ignoring the dependency structure may lead us to different reliability estimations while the dependency justly exists.

This study gives some contributions that evaluate reliability metrics with more than one failure mechanism that may not be independent and possibly follow a different distribution function. The authors have used the copula function as a basis to develop a proposal model and analysis methods. In addition, the authors discussed the identifiability of the copula. Finally, simulation data were used to review the suggested approach.

This paper aims to investigate the effect of cerium modification and electrodeposition on the properties of the silane films obtained. Besides, the influence of dissolved oxygen was also researched through inhalation of oxygen or nitrogen. Moreover, the corresponding corrosion behavior of the silane films was also studied.

In this paper, surface morphology and corrosion-resistant properties of the films were characterized by scanning electron microscopy, electrochemical impedance spectroscopy, immersion test and the salt spray test.

The paper reveals that all the practical parameters including the concentration of dissolved oxygen had a marked effect on the anti-corrosive performance of the films, which may be attributed to the dense and compact structure of the films obtained. Furthermore, the self-healing ability of the films had also been enhanced through the rise of dissolved oxygen concentration in proper proportion.

This paper reveals the effect of practical parameters on the properties of the silane films obtained and the corrosion behavior of these films.

Political connections are widely acknowledged as an effective political strategy for achieving firm value. However, surprisingly little is known about the association between political connections and individual-level outcomes (e.g. subjective well-being) and the underlying mechanism for this link.

Drawing on the schematic model of social capital and entrepreneurship and utilizing a sample of rural Chinese entrepreneurs, the authors developed and tested a multilevel model delineating the impact of political connections on entrepreneur well-being (job and life satisfaction) via the mediating roles of bribing behavior and institutional trust at individual and provincial levels.

Multilevel analyses revealed that at the individual level, political connections were positively associated with job and life satisfaction; bribing behavior and institutional trust served as partial mediators of these associations. These effects were deviated when examining them at the provincial level.

The theoretical implications concerning the political connections and subjective well-being effects as well as comparative entrepreneurship were discussed.

Further, the authors provide guidance for both entrepreneurs and policymakers.

The study linked political connections to entrepreneurs' subjective well-being which is increasingly seen as an important ingredient of personal success via distinguishing the individual-level effects from the provincial-level effects. Thus, the study further contributes to the contextualized understanding of the entrepreneurship literature.

This paper aims to investigate the effects of external sources of finance and ownership type on the value creation of Chinese acquiring firms.

The data set consists of domestic-listed mainland Chinese firms engaged in domestic mergers and acquisitions during the period 2004–2012. Standard event study methodology and cross-sectional regression analysis are used to examine the relationship between external finance, ownership type and value creation of the acquiring firms.

This paper finds that whereas bank financing is positively related to the firm value of privately-owned enterprises (POEs), bank financing has a negative but insignificant influence on the firm value of state-owned enterprises (SOEs). Moreover, equity financing has a negative and significant effect on the value creation of SOE acquirers, however, this appears not to be the case of POEs.

The results suggest that the capital markets in China take into consideration the discriminatory and cheap access to bank loans available to SOEs as negative signals to stock markets, which cause capital markets to punish SOEs through price depreciation. Conversely, capital markets reward POEs in respect of Chinese banks’ discrimination against POEs in bank financing.

The results suggest that the capital markets in China take into account the discriminatory and cheap access to bank loans available to SOEs as negative signals to stock markets, which cause capital markets to punish SOEs through price depreciation. Conversely, capital markets reward POEs in respect of Chinese banks’ discrimination against POEs in bank financing.

The results of this study show that external sources of finance and ownership type influence acquiring firm value in an environment where the corporate governance system is weak and the banking sector is dominated by state banks. Further reforms in the financial sector, particularly, in the corporate governance system appear warranted.

This paper aims to analyze a failure case of a P110 tube in a CO₂ flooding well.

The chemical composition, microstructure and mechanical properties of the failed P110 tubing steel were tested, and met the API Spec 5CT standard. The fractures were investigated by scanning electron microscopy and energy dispersive spectroscopy.

Fracture was induced by stress corrosion cracking (SCC) and that the stress concentration caused by the mechanical damage played an important role in the failure. The failure case is a SCC failure affected by mechanical damage and galvanic corrosion.

The effect of the infiltration of groundwater was studied in the failure case. The stress concentration caused by the mechanical damage played an important role in the failure.

Firms within industrial clusters are subject to challenges such as globalization, limited resources, volatility of international markets and financial instabilities. 4th party logistics (4PL) service providers are supporting individual firms to overcome such challenges by using collaborative operational capabilities from within an industrial cluster to their enhance competitiveness. The purpose of this paper is to focus on China and proposes a collaborative operational capabilities framework to illustrate the role of 4PL in industrial cluster competitiveness.

The paper follows an extensive literature review and structured interviews in two types of clusters, drawing on resource-based view and importance-performance matrix analysis.

The paper proposes six elements (that is, synergy of logistics, expansion of industrial chain, financial ability, creativity and innovation ability, cooperation of companies and flexibility of supply chain) that comprise collaborative operational capabilities, and highlights the role of “creativity and innovation ability” and “supply chain flexibility” in the use of 4PL for industrial cluster competitiveness in Chinese context.

The paper focusses on China and hence it could also be tested in the developed countries’ context with the support of large-scale empirical data to investigate further its usefulness and to identify other constraints.

The study contributes to the 4PL literature in that it proposes a framework that extrapolates the importance of 4PL in industrial cluster competitiveness in China.

Thirty years of rapid development and economic change have created organizations and work relations in China that would have been unthinkable at the start of transition. In December of 1978, the Chinese Communist Party agreed with Deng Xiaoping to allow agricultural privatization, a stark contrast to the communes of Mao Zedong's era. This change established the financial foundation that would lead to development in eastern, coastal cities and that would ultimately fuel an extraordinary transformation of China's economy and its global position. As a result, organizational structures have changed, and new organizational forms have emerged. There have also been dramatic changes in the way work organizations behave and in the nature and implications of work. This volume provides a glimpse into the state of organizations and work at the 30-year mark. The contributors are top scholars in the field, including many who have observed and studied China's transition for decades, who are drawing on some of the most up-to-date and innovative data sources available. The chapters are samples of the current work of these researchers that, taken together, provide a snapshot of the state of research on China's organizations and work behaviors as transition enters its fourth decade.

The piston ring-cylinder liner pair is one of the most important tribological systems of an internal combustion engine. The friction loss of the piston ring-cylinder liner pair accounts for the largest portion of total efficiency losses. Therefore, improving the tribological system design of the piston ring-cylinder liner pair can reduce friction losses and bring tremendous economic benefits to society. This paper aims use surface texturing, which is proving to be an effective method, for improving the tribological performance of sliding surfaces.

In this paper, an experimental study using a pin-on-disk tribometer was carried out to evaluate the effects of surface texturing on friction reduction of piston rings under various loads and sliding velocities. Rectangular- and circular-shaped textures with different depths and area densities were produced by a Femtosecond laser. Comparison experiments were conducted with un-textured rings.

The results indicate that the friction performance of the ring surface was significantly improved by surface texturing, and the running-in stage was also shortened. More specifically, it was found that the rectangular-shaped texture had a better effect on friction reduction than the circular-shaped texture. Results also indicate that an optimum texture density existed for the rectangular-shaped texture. Additionally, it was observed that the average friction coefficient reduction of the textured ring decreased with increasing load and increased with increasing sliding velocity.

Consequently, these findings provide a more in-depth understanding of the relationship between micro-textures and tribological properties of piston rings in lubricating sliding.