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The face-centered cubic structured single-phase FeCoNiCrMn high-entropy alloys (HEAs) were prepared to study the friction and wear behavior of HEAs under MoS₂-oil lubrication.

FeCoNiCrMn alloys were subjected to ball-on-disc reciprocating sliding against the GCr15 ball. L₂₅(5⁶) orthogonal wear tests were designed for velocity V_rel (4.167-20.833 mm/s), load F_N (10-50 N), temperature T (RT-140 °C) and time t (5-20 min). Based on orthogonal test results, multivariate repeated measures ANOVA was performed, and further comparative experiments were conducted for V_rel, F_N and T. Energy dispersive spectrometer and scanning electron microscope were applied to characterize the surface morphology of wear scar and its element distribution.

V_rel, F_N and t exerted the most significant influence (p < 0.01) on the average friction coefficient f. V_rel and F_N were identified as the momentous effect (p < 0.01) on wear volume ΔV. T (≥50 °C) had positive correlation with f and ΔV, and both V_rel and F_N correlated negatively with f. The dominant abrasive wear was attributed to the large hardness difference of the friction pair. Fatigue wear and delamination wear were experienced at higher speeds (V_rel  ≥ 12.5 mm/s) and loading levels (F_N ≥ 40 N). Elevated temperature weakens the lubrication effect of MoS₂-oil and the mechanical properties of FeCoNiCrMn matrix, intensifying abrasive wear.

This study is expected to provide references for exploration on the wear behavior of single-phase HEAs under complex working conditions with lubrication and hence will help develop the application of HEAs in practical engineering.

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-08-2019-0303

Wayfinding efficiency is an extremely influential factor to improve users' library interior experience. However, few research has studied the different functions of various wayfinding signages for university library users through mobile visual experiment. To fill this gap, the purpose of this paper is to explore the relationship between university library signage system design and patrons' wayfinding behavior features.

In this article, an eye movement tracking method was introduced to record eye movement data during the wayfinding process of participants in the library interior, targeting the cognition and psychology of library users in the wayfinding signage system. The visual guiding usability of landmarks, informational signages and directional signages were quantitatively tested, and the fixation on the signage system between orientation strategy users and route strategy users was compared. This study also investigated the effects of library users' spatial anxiety and environmental familiarity on their fixation on the area of interest of the wayfinding signage system using the differential test and regression.

This paper observed that informational signage had the best visual navigating competence. The difference of fixation duration and searching duration between patrons used various wayfinding strategies was significant. The informational signage was most attended by the route strategy users, and the orientation strategy users rarely focused on the directional signage. And participants with high anxiety tended to ignore the visually auxiliary function of the landmarks but paid attention to the directional signage. The participants with low anxiety could capture the landmarks that could not be easily found by the route strategy users. And participants less familiar with the environment were more sensitive to the landmarks. Furthermore, this paper offers optimization measures for university library wayfinding signage system, from the perspectives of informational signage understandability improvement, directional signage physical specification design and wayfinding assistant system with automatic landmark technology.

This article adds to the relatively sparse literature on university library user wayfinding experimental study in China. The experimental findings of this paper also have important practical implications for academic libraries' wayfinding system evaluation. The whole process could be seen as a repeatable and standard framework and methodology to inspect university library's wayfinding signage system usability and user wayfinding behavior performance.

This paper discusses some aspects of the performing arts of the Tibetans and attempts to analyze how they have fared within the context of an extremely large and modernizing state, where since the late 1970s modernization has been accompanied by a contrary revival of traditions. It argues that performing arts traditions remain powerful among the Tibetans and takes issue with the frequently heard notion that Tibetan culture is being destroyed. It contends, however, that the acceleration of modernization in the coming decades could weaken the tradition in Tibetan culture by affecting its link with the society which feeds it. But what is likely to develop is a changed Tibetan culture, with more place given to those features we know as modernity. On the other hand, the traditions are most unlikely to die out in the foreseeable future. The topical focus of the article is on the performing arts, especially the related forms of drama, balladry and dance. The period of focus is that since the early 1980s, and especially the 1990s.

This paper aims to investigate the rise of a Chinese fashion cluster in Lombardy.

Three approaches and descending levels of analysis are integrated: a quantitative analysis based on demographic data to highlight the evolution of the regional distribution of the Chinese community and Chinese entrepreneurship in Lombardy; a literature review to reconstruct the historical development of Chinatown in Milan; and few in-depth interviews and a survey to represent how the Chinese living in Chinatown perceive the changing role of the enclave.

The Chinese in Lombardy are rising as a regional ethnic fashion cluster. This cluster is rising out of three major drivers: ethnic social capital as a source of community-based entrepreneurship; the crisis of traditional industrial districts in the 1990s as a trigger opportunity; and the trans-regionalization of the fashion industry as a main driver of its current development. The rise of this cluster is bottom-up.

The findings are based on a single case study. There are evidences showing that the Chinese are rising as regional and/or inter-regional clusters in other institutional settings. However, this study may benefit from comparisons with other institutional and national contexts.

Chinese entrepreneurship may foster regional growth as a complementary source of cultural variety, internationalization and multi-regional co-specialization.

Entrepreneurship may foster social cohesion and collaboration.

This paper contributes to existing literature by proposing a would-be theory of the evolution of regional ethnic clusters.