1,721,807 research outputs found
Developing a sustainability appraisal for built heritage attractions in an emerging market: lessons from the UK and China
Full text linkThis research has developed a sustainability appraisal approach in relation to built heritage attractions in a mature market, with the possibility of applying it to an emerging heritage market. An approach involving stakeholders (attraction managers, third parties and visitors) was used to reduce assessment bias. A cross-national comparison approach using case studies in China and the UK has been employed in this research to identify the similarities and variability of sustainability management for built heritage attractions across widely different national contexts.
This research can be divided into four stages. Firstly, the research developed a theoretical framework to understand the concepts of built heritage attractions and sustainability appraisal methodologies. Indicators in four areas of sustainability for built heritage were suggested: the economic dimension (employment, financial health and numbers of visitors), the environmental dimension (environmental management systems and heritage conservation), the social dimension (stakeholders’ involvement and attitudes), and the governance dimension (planning, troubleshooting and management). Secondly, a questionnaire-based survey was designed to provide information concerning the sustainability assessment of built heritage attractions across both China and the UK. Then, a six-step method for built heritage attraction sustainability appraisal was proposed, including: identifying sustainability indicators; identifying the key stakeholders; assigning weights to the indicators; scoring the indicators, calculating the overall weighted scores and examining the results. Thirdly, this appraisal approach was applied by comparing its practical application in four built heritage attractions: Chastleton House and Oxford Castle Heritage Site in the UK; Mountain Jieshi and Shanhai Pass in China. The fourth stage involved identifying the potential value, acceptability, implementation and international transferability of the developed approach. The findings identified several important variations and similarities in the cross-national context and made further recommendations for the development of a sustainability appraisal methodology for the management of built heritage attractions.
This research has opened up new directions for both theoretical and empirical studies in the field of sustainability appraisal, which could substantially enhance the initial foundation established in this work. This research proposes a holistic approach to heritage tourism strategies in emerging heritage markets to help heritage attraction managers assess sustainability performance, to help authorities to design a set of heritage indicators, to help those involved in heritage conservation to involve stakeholders appropriately and to guide and monitor heritage conservation funding allocation
Developing students' awareness of Global Englishes
No full textAlthough research on Global Englishes (GE) has demonstrated the potential for a new perspective of ELT, studies of GE in an Asian ELT context are relatively rare. As current mainstream ELT practice in China still largely emphasizes 'native English', university courses related to GE are scarce. This paper aims to unpack the influence of a course on English as a World Language in Chinese university students' awareness of their own English and GE. Data were collected from students taking the optional course at a university in southeast China. After reporting the findings, the paper further discusses the pedagogical implications of integrating GE into English learning and teaching. It also argues for raising students' GE awareness and applying critical pedagogy in ELT for GE-oriented instruction.</p
On the Quantification of Boundary Layer Effects on Flame Temperature Measurements Using Line-of-sight Absorption Spectroscopy
No full textWe studied the boundary layer effects on flame temperature measurements using line-of-sight (LOS) absorption spectroscopy. The primary objective is to quantify the measurement uncertainty of the LOS-determined temperature, which is influenced by the thermal and species boundary layers existing in standard laminar premixed flames. The boundary layer thickness (delta), central flame temperature (T-c) and species concentration (X-c) are the major factors investigated in this work. Typical absorption lines of H2O in the wavelength range of 1.4-2.9 mu m were examined under different boundary layer conditions (delta/L = 0-50%, L is the optical path length above the flame; T-c = 1400-2200 K; and X-c = 14-20%). As a result, the thermal boundary layer is observed to contribute mainly to the temperature deviation of the LOS measurement, which increases with delta and T-c. In comparison, the variation of X-c between 14% and 20% has a negligible effect on the temperature measurement in the presence of both thermal and species boundary layers. A systematical investigation of all the selected line pairs reveals that a properly selected line pair reduces the temperature deviation by a maximum of 16.8% under typical laminar flame conditions. The particular line pair centered at 4029.52 cm(-1) and 4030.73 cm(-1), which could be detected by a single tunable semiconductor laser, is recommended for the LOS temperature measurement over a temperature range of 1400-2200 K. Finally, we performed a case study of five representative temperature measurements in laminar flames and successfully corrected the LOS-determined temperature by taking into account the boundary layer effects
Supplemental_figures_and_tables - The Notch Family Transcription Factor, RBPJκ, Modulates Glucose Transporter and Ovarian Steroid Hormone Receptor Expression During Decidualization
No full textSupplemental_figures_and_tables for The Notch Family Transcription Factor, RBPJκ, Modulates Glucose Transporter and Ovarian Steroid Hormone Receptor Expression During Decidualization by Michael R Strug, Ren-Wei Su, Tae Hoon Kim, Jae-Wook Jeong, and Asgerally Fazleabas in Reproductive Sciences</p
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
The microstructures and mechanical properties of CoNiCrx medium-entropy alloys
No full textThe CoNiCrx (x = 1, 1.4, 1.8, and 2) medium-entropy alloys were synthesized by vacuum arc-melting method to systematically investigate the roles of Cr on microstructures and mechanical properties. The results of microstructural characteristics indicated that both CoNiCr and CoNiCr1.4 alloys have a single face-centered cubic (FCC) structure, while CoNiCr1.8 and CoNiCr2 alloys consist of FCC plus body-centered cubic (BCC) hypoeutectic and eutectic. The formation of FCC and BCC phases could be probably evaluated using the VEC criteria. The tested mechanical properties demonstrated that CoNiCr1.8 alloy exhibited the best comprehensive properties at room and liquid nitrogen temperatures (RT and LNT), whereas the yield strength and hardness of CoNiCr2 alloy were higher than those of other alloys, which may be mainly attributed to the second-phase strengthening and the fine and lamellar microstructure. The yield strength of CoNiCr2 alloy at RT and LNT was 3.8 and 1.9 times (514 MPa and 825 MPa) that of CoNiCr alloy. In addition, the precipitation of dense and ordered FCC (L12) phase could primarily contribute to the enhance of yield strength of CoNiCr1.4 alloy
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
The lattice friction stress driven temperature-dependent tensile deformation behaviors of CoNiCr2 eutectic medium-entropy alloy
No full textA heterogeneous CoNiCr2 eutectic medium-entropy alloy (EMEA), comprising soft face-centered cubic (FCC) and hard body-centered cubic (BCC) lamellae, associated with minor acicular hexagonal close-packed (HCP) phase precipitated in BCC phase, was synthesized towards excellent tensile strength and ductility synergy. The tensile mechanical properties demonstrated that this alloy was temperature-dependent, i.e., when the testing temperature reduced from room temperature (RT) to liquid nitrogen temperature (LNT), the yield strength, ultimate strength, and uniform elongation were enhanced from 449 MPa, 821 MPa, and 5.0 % to 702 MPa, 1174 MPa, and 8.4 %, respectively. The prominent elevation of yield strength at LNT mainly resulted from the dramatically enhanced lattice friction stress ( a0 ) and the FCC-BCC interfacial strengthening, while the improved ductility was attributed to the superior crack-arrest capability of FCC matrix stemmed from the accumulation of stacking faults (SFs) and enhanced Q0 at LNT. Additionally, although the deformation mechanisms were dominated by planar dislocation glides and SFs at both temperatures, the initiation of premature cracks in the BCC phase due to the inferior deformation capability at LNT constrained the better strength-ductility trade-off. The cracks in the BCC phase tended to propagate along the BCC-HCP interfaces because of the strain incompatibility. Furthermore, the sub-nanoscale L12 particles in the FCC matrix could not only strengthen this alloy but also improve the stacking fault energy leading to no deformation twinning even at LNT. This work may provide a guide for the design of remarkable strength and ductility synergy EMEAs combined with outstanding castability for applications at cryogenic temperatures. (c) 2025 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology
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