Teambuilding, Innovation And The Engineering Communication Interface

Recent engineering industry-based research has identified a number of skill deficiencies in graduating engineers. Emphasis on communication and teamwork informed by attributes of self management, problem solving and mutual accountability have been recognized as important needs by The Engineering Accreditation Commission of ABET of the United States and are now required in undergraduate course material. The Engineering College at the American University of Sharjah has recognised this reality with the development of a course in language enhancement and professional communication centred on engineering multidisciplinary projects (EMDPs). This paper will outline four innovative practices that together inform this course; team-building, teamwork management, collaborative problem solving, resource management. Brief illustrative descriptions of: team-building through the use of the Belbin Team Role Inventory; management of teamwork development via planning and documentation; personnel and collaborative problem solving and interactive information sources hosted via a LibGuide will elaborate these innovative practices.

Organizational Excellence and Agility - Correlation Model

The strive to sustain excellence within organizations has increased with the constant change in customer demands and toughening of competition. With these rapid changes occurring, the need for organizations to be agile has become a significant element in their operation schemes to sustain the excellence and be future-ready. This need raises the question of the relationship between organizational excellence and agility. Various models and frameworks have been developed to achieve excellence and agility in organizations. However, limited studies have correlated the two. This research investigates the relationship between excellence and agility within organizations and develops an assessment correlation index matrix between the two domains. That will help organizations understand their states in agility and excellence. The out-take for an organization is to know its categorization in the correlation model (beginner, master, conservative or fashionist) and determine the under-achieving pillars in each domain. The results of the study have shown that there is a high positive correlation between the two domains in both the public and private organizations. Although while one would expect that private organizations would have higher correlation between the two domains, it has been observed in this study that public organizations within the UAE have shown higher correlation data. This could be attributed to the fact that the Government of the UAE has introduced various initiatives since the 90’s that encouraged public organizations to implement excellence models such as DQA and SKEA. Moreover, the study has shown that regardless of the size of the company, the correlation between agility and excellence is highly positive

Formation of porous networks on polymeric surfaces by femtosecond laser micromachining

In this study, porous network structures were successfully created on various polymer surfaces by femtosecond laser micromachining. Six different polymers (poly(tetrafluoroethylene) (PTFE), poly(methyl methacrylate) (PMMA), high density poly(ethylene) (HDPE), poly(lactic acid) (PLA), poly(carbonate) (PC), and poly(ethylene terephthalate) (PET)) were machined at different fluences and pulse numbers, and the resulting structures were identified and compared by lacunarity analysis. At low fluence and pulse numbers, porous networks were confirmed to form on all materials except PLA. Furthermore, all networks except for PMMA were shown to bundle up at high fluence and pulse numbers. In the case of PC, a complete breakdown of the structure at such conditions was observed. Operation slightly above threshold fluence and at low pulse numbers is therefore recommended for porous network formation. Finally, the thickness over which these structures formed was measured and compared to two intrinsic material dependent parameters: the single pulse threshold fluence and the incubation coefficient. Results indicate that a lower threshold fluence at operating conditions favors material removal over structure formation and is hence detrimental to porous network formation. Favorable machining conditions and material-dependent parameters for the formation of porous networks on polymer surfaces have thus been identified

Optical and Chemical Effects Governing Femtosecond Laser-Induced Structure Formation on Polymer Surfaces

With the emergence of femtosecond technology, laser machining has recently led to the creation of novel porous structures on polymers. However, the mechanism behind their formation is yet to be understood. In this study, the dependence of femtosecond laser-induced surface structure on processing parameters is established at two distinct wavelengths (800 nm and 275 nm) for six different polymer films: LDPE, PC, PET, PLA, PMMA, and PTFE. All of the observed structures are then optically and chemically characterized as a first step towards elucidating their formation mechanism. The threshold fluence at operating conditions was determined to be the main parameter affecting porosity formation during machining. Furthermore, for transparent films, a transition from multiphoton to linear absorption is observed to occur at 800 nm but not at 275 nm. This shift in optical properties was determined to be a major contributor to incubation effects. These observations are also in agreement with UV/VIS analysis as measurements show that polymers with a cut-off wavelength lower than that of the laser beam undergo a shift in absorption behavior. Finally, some polymers experience a continuous darkening of their surface with increasing fluence due to an increasing degree of photo-oxidation

Versatile pectin grafted poly (N-isopropylacrylamide); modulated targeted drug release

This study describes synthesis and optimization of pectin grafted poly(N-isopropylacrylamide) hydrogels as vehicles for colon-targeted theophylline model drug release. The gels were prepared in the presence of N, N′–methylenebisacrylamide (MBAA) crosslinker and ceric ammonium nitrate (CAN) initiator under N2 atmosphere. Optimum conditions, in terms of percent of grafting (%G), were determined as follows: pectin = 1.0 g, [NIPAAm] = 26.51 mM, [MBAA] = 0.65 mM, [CAN] = 0.073 mM, polymerization temperature = 30°C and time = 4.0 h. Hydrogels were characterized by FTIR, TGA, DSC, XRD and SEM. The formed hydrogel did not have a thermo-sensitivity behavior. The in vitro percent drug release was studied in terms of different percent of grafting and different polymerization temperatures under two pH values namely 5.5 and 7.4. Conclusively, the optimum colon-targeted vehicle properties that provide the least drug release at pH5.5 and the most drug release at pH7.4 were as follows: [NIPAAm] = 26.51 mM and [MBAA] = 0.56 mM, polymerization temperature = 30°C and %G = 55.5

Comparison between MyoRing and 355°KERATACx in the management of keratoconus

Background Intracorneal implants have been proposed over the years as a possible easier way for managing keratoconus, having a favorable influence on the course of the disease. KERATACx is a relatively new form of intracorneal ring segments that has been recently introduced but not thoroughly studied regarding its safety and efficacy. Moreover, implanting a complete intrastromal ring into a corneal pocket, MyoRing (Dioptex GmbH, Austria), is an alternative technique, which can be considered safe, effective, and relatively easy for the treatment of keratoconus. Aim To compare between the effect of MyoRing and KERATACx corneal implants as new modalities of treatment on the visual acuity, as well as assess corneal topography findings in cases with moderate to severe keratoconus. Patients and methods Our study is a prospective comparative study conducted at specialized eye centers in Cairo. A total of 20 keratoconic eyes were eventually recruited. Overall, 10 of those eyes had 355° intracorneal ring segment implants (KERATACx ring segments) inserted into a femtosecond laser-created corneal tunnel at a depth of 75% of the thinnest location at the proposed tunnel site (group A), whereas the other 10 eyes had complete ring (MyoRing) implantation into a femtosecond laser-created corneal pocket at a 300-μm corneal depth (group B), by the same designated surgeon. The study was approved by the Ethics Committee of Ain-Shams University. Results Both types were proven to be statistically effective, with no statistically significant differences between the two groups related to any of the followed up parameters. In fact, both proved safe, effective, and reliable methods for managing keratoconus, with no difference of importance even to the degree of myopic refractive error correction. There were no significant intraoperative or postoperative complications reported within both groups throughout the whole study and follow-up period, but in turn, stability of the achieved results was found in both groups. Conclusion Both MyoRing and KERATACx were found to be equally effective, safe, and reliable methods for keratoconus management