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21.
Al?Emran?IsmailEmail author Ahmad?Kamal?Ariffin Shahrum?Abdullah Mariyam?Jameelah?Ghazali Mohammed?Abdulrazzaq Ruslizam?Daud 《浙江大学学报(A卷英文版)》2012,13(1):1-8
This paper discusses stress intensity factor (SIF) calculations for surface cracks in round bars subjected to combined torsion
and bending loadings. Different crack aspect ratios, a/b, ranging from 0.0 to 1.2 and relative crack depths, a/D, ranging from 0.1 to 0.6 were considered. Since the loading was non-symmetrical for torsion loadings, a whole finite element
model was constructed. Then, the individual and combined bending and torsion loadings were remotely applied to the model.
The equivalent SIF method, F*EQ, was then used explicitly to combine the individual SIFs from the bending and torsion loadings. A comparison was then carried
out with the combined SIF, F*FE, obtained using the finite element analysis (FEA) under similar loadings. It was found that the equivalent SIF method successfully
predicted the combined SIF for Mode I. However, discrepancies between the results determined from the different approaches
occurred when F
III was involved. It was also noted that the predicted F*FE using FEA was higher than the F*EQ predicted through the equivalent SIF method due to the difference in crack face interactions. 相似文献
22.
Presently, the role and the function of universities in Malaysia have been described as being in a state of change. Several strategies have been adopted to assist in the re-branding of higher institutions of learning. As a consequence, an effective model of leadership practices, particularly at the Malaysian academic departmental level, has to be generated in order to replace the traditional leadership practices in meeting the national aspirations. The purpose of this study was to investigate the relationship between department heads’ leadership behaviour with academics’ organisational commitment. Survey responses from 430 academics from Malaysian public universities were received and analysed. The main finding of this study reveals that the adoption of encouraging leadership behaviour (Kouzes and Posner’s Transformational Leadership) shows a 55% direct positive relationship with academics’ organisational commitment, with demographical factors playing no role as a moderator with either variable. This reinforces the rationalisation for adopting the model within the Malaysian academic setting, where department heads should indeed lead the academic organisation. 相似文献
23.
Measuring the quality of service in higher education is increasingly important, particularly as fees introduce a more consumerist ethic amongst students. This paper aims to test and compare the relative efficacy of three measuring instruments of service quality (namely HEdPERF, SERVPERF and the moderating scale of HEdPERF‐SERVPERF) within a higher education setting. The objective was to determine which instrument had the superior measuring capability in terms of unidimensionality, reliability, validity and explained variance. Tests were conducted utilizing a sample of higher education students, and the findings indicated that HEdPERF scale resulted in more reliable estimations, greater criterion and construct validity, greater explained variance, and consequently was a better fit than the other two instruments. Consequently, a modified five‐factor structure of HEdPERF is put forward as the more superior scale for the higher education sector. 相似文献
24.
Lilia Halim Sharifah Intan Sharina Syed Abdullah T. Subahan Mohd Meerah 《Journal of Science Education and Technology》2014,23(2):227-237
Pedagogical content knowledge (PCK) is a type of teacher knowledge to be developed by a teacher. PCK is said to contribute to effective teaching. Most studies investigated the development of PCK and its influence on students’ learning from the teachers’ perspectives. Only a limited number of studies have investigated the components of science teachers’ PCK that helped students’ learning from the perspective of students. Thus, it is the aim of this study to investigate the level of science teachers’ PCK from students’ perspective, in particular whether or not students of different achieving ability had different views of teachers’ PCK in assisting their learning and understanding. Based on the PCK research literature, six components of PCK have been identified, which were as follows: (1) subject matter knowledge, (2) knowledge of teaching strategies, (3) knowledge of concept representation, (4) knowledge of teaching context, (5) knowledge of students, and (6) knowledge of assessment in learning science. A questionnaire consisting of 56 items on a five-point Likert-type scale were used for data collection from 316 Form Four students (16 years old). One-way analysis of variance revealed that the differences in science teachers’ PCK identified by students of different achieving abilities were statistically significant. Overall, students of various academic achieving abilities considered all the components of PCK as important. The low-achieving students viewed all the components of PCK as being less important compared to the high and moderate achievers. In particular, low-achieving students do not view ‘knowledge of concept representation’ as important for effective teaching. They valued the fact that teachers should be alert to their needs, such as being sensitive to students’ reactions and preparing additional learning materials. This study has revealed that PCK of science teachers should be different for high and low-achieving students and knowledge of students’ understanding plays a critical role in shaping teachers PCK. 相似文献
25.
In this study, the purpose was to develop a student engagement scale for higher education. The participants were 805 students. In the process of developing the item pool regarding the scale, related literature was examined in detail and interviews were held. Six factors – valuing, sense of belonging, cognitive engagement, peer relationships (emotional engagement-I), relationships with faculty members (emotional engagement-II) and behavioural engagement within the scope of the components of campus engagement and class engagement – made up of 41 items were identified. The total variance explained was 59%. A higher student engagement score was regarded as an indicator that the student had a high level of engagement with the university, campus and class, while a lower score demonstrated that the student’s engagement with the campus and class was weak or that disengagement could occur. 相似文献
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28.
Hooi San Phoon Melissa Ng Lee Yen Abdullah Anna Christina Abdullah 《The Australian Educational Researcher》2013,40(5):615-632
Multicultural early childhood education is necessary in a culturally diverse country like Malaysia. Preschool teachers play an important role in implementing multicultural education in the classroom. This paper reports the findings of a self-report questionnaire involving 854 preschool teachers in Malaysia. The preschool teachers disclosed their current multicultural education practices as well as the challenges they encountered when implementing multicultural education. While the majority of teachers claimed that they implemented multicultural education, a closer examination revealed that most of them used the tourist or contribution approach which focuses on only the outward manifestations of a culture when dealing with multicultural education. The transformation or anti-bias approach was used by only a small number of teachers. The teachers identified some challenges in multicultural education implementation, such as lack of instructional resources and the lack of stakeholder support. Thus, it is important to ensure teachers develop more critical understandings of multicultural education through teacher education training and programs. Other efforts to help teachers overcome challenges in implementing multicultural education include producing and developing more instructional materials and learning aids, which are suitable for young children and appropriate for the local context. Preschool teachers also need stakeholders to give more support and to acknowledge the importance of implementing multicultural early childhood education. 相似文献
29.
Nurul Akidah BAHARUDDIN Hamimah Abd RAHMAN Andanastuti MUCHTAR Abu Bakar SULONG Huda ABDULLAH 《浙江大学学报(A卷英文版)》2013,14(1):11-24
Solid oxide fuel cells(SOFCs) offer high energy conversion,low noise,low pollutant emission,and low processing cost.Despite many advantages,SOFCs face a major challenge in competing with other types of fuel cells because of their high operating temperature.The necessity to reduce the operational temperature of SOFCs has led to the development of research into the materials and fabrication technology of fuel cells.The use of composite cathodes significantly reduces the cathode polarization resistance and expands the triple phase boundary area available for oxygen reduction.Powder preparation and composite cathode fabrication also affect the overall performance of composite cathodes and fuel cells.Among many types of cathode materials,lanthanum-based materials such as lanthanum strontium cobalt ferrite(La1-xSrxCo1-yFeyO3- have recently been discovered to offer great compatibility with ceria-based electrolytes in performing as composite cathode materials for intermediate-to low-temperature SOFCs(IT-LTSOFCs).This paper reviews various ceria-based composite cathodes for IT-LTSOFCs and focuses on the aspects of progress and challenges in materials technology. 相似文献
30.
David Nicholas Anthony Watkinson Abdullah Abrizah Cherifa Boukacem‐Zeghmouri Jie Xu Blanca Rodríguez‐Bravo Marzena Świgoń Eti Herman 《Learned Publishing》2018,31(3):249-253
Key points
- Early career researchers (ECRs) consider journals the central form of communication – but are concerned about pressure to publish.
- ECRs want to share but currently accept the closed publishing system because of the need to build a traditional reputation.
- ECRs know – and appear to care – little about publishers but trust them as publishing and reviewing facilitators.
- Editors are criticized for not managing peer review with better selection of reviewers.
- Megajournals are not seen as the future journal form and criticized for lack of selectivity.
- ECRs want open access/science in principle but are circumspect about their contribution to it.
- ResearchGate is a key force for change as ECRs consider it a mainstay communication and reputation platform.