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41.
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
42.
Glenn Hardaker Aishah Ahmad Sabki 《International journal of qualitative studies in education》2013,26(8):873-886
This anthropological study of a higher education British Madrasah was undertaken to increase our awareness of the spectrum of sensory experiences that shape Islamic pedagogy. We started our anthropological study from an Islamic premise of the inseparable nature of knowledge and the sacred. Pedagogy is defined as not a matter of simple methods and technique but as a holistic approach that deals with the capacity to form the human person. Islamic pedagogy is represented by the heartfelt interactions between the teacher and learner through orality, facilitating memorization, and the didactic approach towards sacred texts. This research has explored the sensoria of a British Madrasah from a spiritual approach and this provides the foundation for shaping our understanding of the madrasah concept of Islamic pedagogy. An Al-Ghazali’s mystical-theoretical approach toward learning is evident in this research in defining the madrasah as a spiritual rather than social construct, and is optimized by the embodiment of learning. 相似文献
43.
Mahdi Dehghan Maryam Biabani Ahmad Ali Abin 《Information processing & management》2019,56(3):1067-1079
Cost optimization continues to be a critical concern for many human resources departments. The key is to balance between costs and business value. In particular, computer science organizations prefer to hire people who are expert in only one skill area and have a slight superficial knowledge in other areas that gives them the ability to collaborate across different aspects of project. Community Question Answering networks provide good platforms for people and organizations to share knowledge and find experts. An important issue in expert finding is that an expert has to constantly update his knowledge after being saturated in his field of expertise to still be identified as expert. A person who fails to preserve his expertise is likely to lose his expertise. This work justifies this question that does take the concept of time into account improve the quality of expertise retrieval. We propose a new method for T-shaped expert finding that is based on temporal expert profiling. The proposed method takes the temporal property of expertise into account to mine the shape of expertise for each candidate expert based on his profile. To this end, for each candidate expert, we take snapshots of his expertise trees at regular time intervals and learn the relation between temporal changes in different expertise trees and candidates’ profile. Finally, we use a filtering technique that is applied on top of the profiling method, to find shape of expertise for candidate experts. Experimental results on a large test collection show the superiority of the proposed method in terms of quality of results in comparison with state-of-the-art. 相似文献
44.
45.
Ahmad Sadeghi Iran Baghban Fatemeh Bahrami Ahmad Ahmadi Peter Creed 《International Journal for Educational and Vocational Guidance》2011,11(1):29-38
A short 33-item form of the Career Development Inventory was validated on a sample of 310 Iranian high school students. Factor
analysis indicated that attitude and cognitive subscale items loaded on their respective factors, and that internal reliability
coefficients at all levels were satisfactory to good. Support for validity was demonstrated by associations in the expected
direction for career decidedness and career decision-making self-efficacy. This short form of the inventory shows promise
as a measure of career maturity with students from a non-Western country. 相似文献
46.
Motahareh Waezi-Zadeh Ahmad Ghazanfari Shahin Noorbakhsh 《Journal of Zhejiang University. Science. B》2010,11(7):482-488
Date pits for feed preparation or oil extraction are soaked in water to soften before milling or extrusion. Knowledge of water absorption by the date pits helps in better managing the soaking duration. In this research, the process of water absorption by date pits was modeled and analyzed using Fick's second law of diffusion, finite element approach, and Peleg model. The moisture content of the pits reached to its saturation level of 41.5% (wet basis) after 10 d. The estimated coefficient of diffusion was 9.89×10-12 m2/s. The finite element model with a proposed ellipsoid geometry for a single date pit and the analytical model fitted better to the experimental data with R2 of 0.98. The former model slightly overestimated the moisture content of the pits during the initial stages of the soaking and the latter model generally underestimated this variable through the entire stages of soaking process. 相似文献
47.
Job performance can be defined as the extent to which one exhibits behaviors that further the goals of the organization, and leaders try to manage the factors influencing the performance in an organization to guide it toward organizational goals. A main factor that influences the performance is emotions and behavior of other people. The influence of people on each other can be divided into physical and metaphysical contagions in the scientific literature. In this article, we introduce a new kind of metaphysical contagion that has a close relationship with individual and organizational performance. We name it performance contagion and introduce two kinds of factors (content and process) and subfactors. We conceptualize a new concept in performance management defined as human resource layout. Tools are suggested for applying the steps of this model to improve both individual and organizational performance. 相似文献
48.
Bread wheat varieties as influenced by different nitrogen levels 总被引:4,自引:2,他引:2
INTRODUCTION Dera Ismail Khan lies in Pakistan’s arid zone (71.07° longitude, 31.57° latitude and 500 m above sea level). This zone is in the extreme south of (NWFP) Pakistan at the bank of the River Indus. Dera Ismail Khan is bounded by Sulaiman Range to the West, the Indus River on the East, Marwat and Bhit- tani Ranges on the North and Vehowa Nala (Punjab) on the South. Besides certain local variability the area is comprised of four basic divisions viz mountains, a series … 相似文献
49.
Xiaole Mao Ahmad Ahsan Nawaz Sz-Chin Steven Lin Michael Ian Lapsley Yanhui Zhao J. Philip McCoy Wafik S. El-Deiry Tony Jun Huang 《Biomicrofluidics》2012,6(2):024113-024113-9
In this work, we demonstrate an integrated, single-layer, miniature flow cytometry device that is capable of multi-parametric particle analysis. The device integrates both particle focusing and detection components on-chip, including a “microfluidic drifting” based three-dimensional (3D) hydrodynamic focusing component and a series of optical fibers integrated into the microfluidic architecture to facilitate on-chip detection. With this design, multiple optical signals (i.e., forward scatter, side scatter, and fluorescence) from individual particles can be simultaneously detected. Experimental results indicate that the performance of our flow cytometry chip is comparable to its bulky, expensive desktop counterpart. The integration of on-chip 3D particle focusing with on-chip multi-parametric optical detection in a single-layer, mass-producible microfluidic device presents a major step towards low-cost flow cytometry chips for point-of-care clinical diagnostics. 相似文献
50.
Mao X Nawaz AA Lin SC Lapsley MI Zhao Y McCoy JP El-Deiry WS Huang TJ 《Biomicrofluidics》2012,6(2):24113-241139
In this work, we demonstrate an integrated, single-layer, miniature flow cytometry device that is capable of multi-parametric particle analysis. The device integrates both particle focusing and detection components on-chip, including a "microfluidic drifting" based three-dimensional (3D) hydrodynamic focusing component and a series of optical fibers integrated into the microfluidic architecture to facilitate on-chip detection. With this design, multiple optical signals (i.e., forward scatter, side scatter, and fluorescence) from individual particles can be simultaneously detected. Experimental results indicate that the performance of our flow cytometry chip is comparable to its bulky, expensive desktop counterpart. The integration of on-chip 3D particle focusing with on-chip multi-parametric optical detection in a single-layer, mass-producible microfluidic device presents a major step towards low-cost flow cytometry chips for point-of-care clinical diagnostics. 相似文献