873 research outputs found
2. Mosquée d'Al-Ashraf Barbāy
No full textSimaïka Marcus H., Ghalib Kamil Osman, Farid 'Aly, Ahmad Mahmud. 2. Mosquée d'Al-Ashraf Barbāy. In: Comité de Conservation des Monuments de l'Art Arabe. Fascicule 38, exercice 1936-1940, 1944. pp. 231-232
(a) Mosquée d'Al-Ashraf Barsbāy
No full textSimaïka Marcus H., Greg Robert Hyde, Home John, Ghalib Kamil Osman, Wiet Gaston, Ahmad Mahmud. (a) Mosquée d'Al-Ashraf Barsbāy. In: Comité de Conservation des Monuments de l'Art Arabe. Fascicule 38, exercice 1936-1940, 1944. pp. 78-79
(b) Mosquée d'Al-Ashraf Barsbāy
No full textSimaïka Marcus H., Greg Robert Hyde, Ghalib Kamil Osman, Wiet Gaston, Farid 'Aly, Ahmad Mahmud. (b) Mosquée d'Al-Ashraf Barsbāy. In: Comité de Conservation des Monuments de l'Art Arabe. Fascicule 38, exercice 1936-1940, 1944. pp. 210-211
HERStory Makers 2022: Shirin Ashraf
No full textShirin Ashraf is a postdoctoral research associate at the University of Glasgow studying novel viruses from Uganda and other parts of Africa. She took part in HERStory Makers 2022.What is HERStory Makers?HERStory Makers is a social media competition for female-identifying early career researchers to share their research, their career journeys, and to inspire the next generation. Winners are selected by public vote. HERStory Makers is also part of EXPLORATHON, Scotland's contribution to European Researchers' Night.In 2022-23, EXPLORATHON was supported by the Engineering & Physical Sciences Research Council [grant number EP/X020894/1].Author contributions to contentShirin Ashraf conceived, planned, and recorded the video content. Kirsty Ross edited the video content to insert HERStory Maker credits, add subtitles, and maintain video length below Twitter/X limit of 2 mins and 20 secs, prior to scheduling the social media posts.</p
Evaluation on the ultimate bearing capacity for laminated bamboo lumber columns under eccentric compression
No full textEngineered bamboo is gaining widespread interests from researchers to exploit its excellent functional characteristics in practical engineering applications. Laminated bamboo lumber (LBL) is one of many engineered products that are currently available with the potential to be used in the construction sector. The size and shape of LBL can be easily controlled to suit design requirements making it competitive with other commonly used building materials. This paper presents a recent investigation on the behaviour of LBL columns under eccentric compression loading, and proposes analytical formulations for predicting the ultimate resistance of columns with special emphasis given on observed failure mode types. Closer inspection revealed three characteristic failure modes, denoted as Mode I, II and III hereafter, for LBL columns under eccentric compression. In Mode I, failure was initiated from glue or bracket but all bamboo fibers remained elastic; in Mode II the outer most compression fiber reached elastic-plastic stage and eventually triggered failure; and in Mode III outer most part of compression fiber achieved plastic capacity prior to failure. Detailed analytical models have been developed and presented herein for all observed failure modes' and the performance of the proposed design equations are compared using test evidences reported by the authors. The proposed equations produced very good agreement with the experimentally obtained results, and may be adopted in future design codes for engineered bamboo
Microstrip Patch Antenna for Single Resonant Frequency Using Various Types of Slots
No full textMicrostrip patch antennas are widely utilized in WLAN applications, and body-centric wireless communication relies on multiple network links to get messages through. But the existing antenna size is big with less bandwidth, which increases the cost. This paper has taken a rigorous approach to design an antenna that will provide a single resonant frequency at the targeted bandwidth (2.45GHz). The patch size in the proposed antenna is 28mm by 27mm and energized by a 50 ohm microstrip feed line with dimensions 3.137mm by 18.35mm. The dielectric substrate of permittivity Er = 4.3 is used in the fabrication process. The optimal size and other antenna characteristics are found by finite difference time domain method based CST Studio Suite. Other parameters like return loss, input impedance, and bandwidth of the microstrip patch antennas are calculated using VNA and WATS software to verify the proposed work. Finally, the proposed slot-loaded antenna attains an improved bandwidth and gain while providing a single resonant frequency
IoD swarms collision avoidance via improved particle swarm optimization
No full textDrones flights have been investigated widely. In the presence of high density and complex missions, collision avoidance among swarm of drones and with environment obstacles becomes a challenging task and indispensable. This paper aims to enhance the optimality and rapidity of three dimensional IoD path generation by improving the particle swarm optimization (PSO) algorithm. The improvements include using chaos map logic to initialize the population of PSO. Also, adaptive mutation is utilized to balance local and global search. Then, the inactive particles are replaced by new fresh particles to push the solution toward global optimal. Furthermore, Monte Carlo simulation is carried out and the results are compared with slandered PSO and with recent work CIPSO. The results exhibit significant improvement in convergence speed as well as optimal solution which prove the ability of proposed method to generate safety path for IoD formation without collision with terrain obstacle and among drones.The authors would like to acknowledge the support of the department of the computer engineering at King Fahd University of Petroleum and Minerals for this work.Ahmed, G (corresponding author), King Fahd Univ Petr & Minerals, Comp Engn Dept, Dhahran, Saudi Arabia.
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Automating the determination of wave speed using the pu-loop method
No full textThe PU-loop (pressure-velocity loop) is a method for determining wave speed and relies on the linear relationship between the pressure and velocity in the absence of reflected waves. This linearity of the PU-loop during early systole, which is directly related to wave speed, has always been established by eye. This paper presents a new technique that establishes this linearity and thus determining wave speed online. Pressure and flow were measured in the ascending aorta of 11 anesthetised dogs. The slope of the PU-loop, indicating wave speed was determined by eye and by using the new technique. The difference between the slopes of the two methods is in the order of 3%. The new technique is convenient and allows for the online assessment of wave speed, which could be used as a bedside tool for the assessment of arterial compliance
Effects of chemical modification and nanotechnology on wood properties
Full text linkAs a green material, wood is widely used in building decoration, railway construction, and other fields. However, the wood itself has inherent defects of being easy to absorb water and deform, rot, and decrease in strength. The physical and mechanical strengths and stability of artificial fast-growing forest wood are even worse. As wood modification can improve the dimensional stability, durability, strength, and other properties of wood, it has been widely used. Chemical modification is the main method of wood modification. The development of nanotechnology has brought more possibilities for wood modification. Owing to the extensive literature available, this article summarizes the representative achievements of wood chemical modification and nanotechnology. The principle, production process, advantages, and disadvantages of various wood chemical modification methods were analyzed, compared, and evaluated. Finally, according to the application status of wood-modified materials, the problems existing in the current wood chemical modification methods and the application of nanotechnology, and the development trend in the future are analyzed
Keratoconus : current and future state-of-the-art
Full text linkThis book provides a practical guide to the most recent advances in the diagnostic management of corneal ectasia. Clear, concise chapters address new standardized nomograms of treatment of early progressive ectasia, new epithelium on future crosslinking with and without oxygen supplement, customized protocols, laser assisted corneal regularization protocols and the new femtolaser assisted lamellar corneal transplant. Clinicians and surgeons seeking a go-to guide on the topic of corneal ectasia will find this book to be an essential resource for the latest developments and predicted future trends in the field. © The Editor(s) (if applicable) and The Author(s)
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