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1 – 10 of over 11000Mohammed B. Lahkim, Gregory J. Skulmoski and Russel E. Bruhn
This paper investigates the integration of leadership training into IT curricula to develop current and future skills needed by the IT job market. The technical and non-technical…
Abstract
This paper investigates the integration of leadership training into IT curricula to develop current and future skills needed by the IT job market. The technical and non-technical skills required for IT professionals are presented and a conceptual model for including leadership training in technical courses is outlined. To implement this model, we adopted the Problem-Based Learning approach to teach an IT course. Qualitative and quantitative data were gathered, through a survey, from 52 undergraduate students in the College of Information Technology at Zayed University. Our results show that our adopted approach was successful in teaching IT skills as well as developing leadership skills. Given these findings, we highlight the importance and feasibility of integrating leadership development on a daily basis within technical courses to develop both the technical and non technical skills required by the job market.
E.F. Donaldson, P.A. Calton, J.R. Gibson, G.R. Jones, N.A. Pilling and B.T. Taylor
An autonomous sensing system is described for deployment on high voltage power lines and to provide an economical method for monitoring current on such lines. The autonomy is…
Abstract
An autonomous sensing system is described for deployment on high voltage power lines and to provide an economical method for monitoring current on such lines. The autonomy is provided by drawing power off the line being monitored via electromagnetic induction to drive the current measuring device and for the transmission of the current data to ground level via an optic fibre link, which provides inherent electrical insulation. When the autonomy of the system is threatened, the system automatically switches to be energised from a laser source at ground control via a second optical fibre link. Test results showing the performance of the system are presented.
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Robert Fleischhauer, Jens U. Hartig, Peer Haller and Michael Kaliske
The purpose of this study is the numerical investigation of densification and molding processes of wood. Providing theoretical and numerical approaches with respect to a…
Abstract
Purpose
The purpose of this study is the numerical investigation of densification and molding processes of wood. Providing theoretical and numerical approaches with respect to a consistent multi-physical finite element method framework are further goals of this research.
Design/methodology/approach
Constitutive phenomenological descriptions of the thermo-mechanical and moisture-dependent material characteristics of wood are introduced. Special focus is given to a consistent hygro-thermo-mechanical modeling at finite deformations to capture the realistic material behavior of wood, especially when it is subjected to densification and molding processes.
Findings
Realistic theoretical formulations of different hygro-thermo-mechanical processes are provided. A successful numerical modeling is demonstrated for beech wood by validation at experimental findings.
Originality/value
The constitutive laws and numerical findings are new, as they govern a multi-physical large deformation framework and are applied to the advanced technology of densification and molding of wood.
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H.R. Thomas and C.H. Liu
The implementation of the finite element solution of Biot's consolidation theory on a low‐cost microcomputer is described. A two‐dimensional linear elastic model is solved using…
Abstract
The implementation of the finite element solution of Biot's consolidation theory on a low‐cost microcomputer is described. A two‐dimensional linear elastic model is solved using bilinear rectangular elements and a fully implicit timestepping algorithm. The machine used is the Acorn Computers model B, BBC microcomputer, a popular low‐cost engineering applications machine. The program is written in Basic but to increase speed of computation certain sections of the solution procedure involving matrix manipulation are written in Assembly language. The results obtained are encouraging from the point of view of accuracy, problem size and computational time. It is concluded that there is scope for the use of the present generation of low‐cost microcomputer, as typified by this machine, in the numerical solution of the more straightforward, but still realistic, consolidation problems.
S. Taylor, J.R. Gibson and B. Srigengan
In the last 10 years there has been an increasing trend towards miniaturisation in mass spectrometry. Miniature versions of magnetic sector, time of flight (TOF) and quadrupole…
Abstract
In the last 10 years there has been an increasing trend towards miniaturisation in mass spectrometry. Miniature versions of magnetic sector, time of flight (TOF) and quadrupole mass spectrometers (QMS) have all been developed. Some of these systems use silicon microengineering technology, e.g. MEMS, to achieve the small geometries necessary, other systems use conventional engineering but on a reduced scale. The scientific advantages of miniaturisation include the ability to measure and monitor at higher vacuum pressures than hitherto (>10−2 mbar). Miniaturisation also offers advantages due to the reduced cost and resulting portable nature of the smaller instruments.
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The eighteenth- and nineteenth-century fur trade in the United States and Canada that sent hundreds of thousands of furs to Europe and China relied on “Cheap Labor” and the…
Abstract
The eighteenth- and nineteenth-century fur trade in the United States and Canada that sent hundreds of thousands of furs to Europe and China relied on “Cheap Labor” and the abundance of “Cheap Raw Materials,” that is to say, living beings such as sea otter, land otter, beaver, and seals. Native American labor, procured by and paid through trade goods in a kind of “putting out” piece-rate system, was cheap partially because their lives were maintained/reproduced through traditional agricultural or hunting and gathering economies. The commodification of fur-bearing animals led to their sharp decline and in some cases near extinction. Cheap labor and cheap living beings interacted dynamically in unison to enable capital accumulation under mercantile capitalism. At the very end of the nineteenth century, fur farming as a petty capitalist enterprise became common in Canada and the United States, and more recently has expanded greatly in China.
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Asli Pelin Gurgun and Kerim Koc
Contract incompleteness with deficiency, inconsistency, defectiveness, and ambiguity in contract clauses, which can cause misunderstandings and misinterpretations, may result with…
Abstract
Purpose
Contract incompleteness with deficiency, inconsistency, defectiveness, and ambiguity in contract clauses, which can cause misunderstandings and misinterpretations, may result with disputes in projects. This study aims to investigate contract incompleteness factors with a hybrid fuzzy multi-criteria decision approach.
Design/methodology/approach
Contract incompleteness factors were ranked by fuzzy VIKOR (Visekriterijumska Optimizacija I Kompromisno Resenje) method, and the most significant factors were subjected to fuzzy decision-making trial and evaluation laboratory (DEMATEL) to examine their causal relationships. The study is not limited to ranking the identified factors solely, since their cause-effect interactions are also essential for proper risk management in construction projects.
Findings
Hybrid use of multi-criteria analysis reveals that ambiguity in enforceability including excessive demands and significant amendments in the scope of works are the top two causal contract incompleteness factors, while lack of implementation details and focus of focal point, and insufficient supporting and technical documents are the most affected ones.
Originality/value
Contractual causes of disputes due to contract incompleteness factors other than requirements of the contracts have been rarely investigated in the literature. The research is one of the first studies in the literature investigating the causal relationship among factors in construction contracts, which might lead to project disputes. Findings are expected to improve contract drafting, eventually contributing to effective risk management in construction projects.
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Tao Cheng, Keqin Yan, Jun-Jie Zheng, Xian-Feng Luo, Ding-Bang Zhang, Wan-Hui Xu, Ren-Jie Hu and Yi Zhang
This paper aims to present a simplified solution method for the elasto-plastic consolidation problem under different stress paths.
Abstract
Purpose
This paper aims to present a simplified solution method for the elasto-plastic consolidation problem under different stress paths.
Design/methodology/approach
First, a double-yield-surface model is introduced as the constitutive model framework, and a partial derivative coefficient sequence is obtained by using numerical approximation using Gauss nuclear function to construct a discretization constitutive model which can reflect the influence of different stress paths. Then, the model is introduced to Biot’s consolidation theory. Volumetric strain of each step as the right-hand term, the continuity equation is simplified as a Poisson equation and the fundamental solution is derived by the variable separation method. Based on it, a semi-analytical and semi-numerical method is presented and implemented in a finite element program.
Findings
The method is a simplified solution that is more convenient than traditional coupling stiffness matrix method. Moreover, the consolidation of the semi-infinite foundation model is analyzed. It is shown that the numerical method is sufficiently stable and can reflect the influence of stress path, loading distribution width and some other factors on the deformation of soil skeleton and pore water pressure.
Originality/value
Original features of this research include semi-numerical semi-analytical consolidation method; pore water pressure and settlements of different stress paths are different; maximum surface uplift at 3.5a; and stress path is the main influence factor for settlement when loading width a > 10 m.
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