Effat Undergraduate Research Journal (EURJ)http://hdl.handle.net/20.500.14131/2182024-03-29T01:38:30Z2024-03-29T01:38:30ZSmart Sprinkler System for Water ConservationA. Johar, Ranahttp://hdl.handle.net/20.500.14131/2272022-11-15T14:22:09Z2020-01-01T00:00:00ZSmart Sprinkler System for Water Conservation
A. Johar, Rana
One of the main problems facing modern cities is water scarcity. The increasing level of water wastage in the i r r igat ion system is an alarming problem. According to the 2030 vision, a reduction in water wastage is sought. This represents a strong motivation to create a simple device to achieve water efficiency. Home sprinkler water flow systems do not take into consideration the current state of the surroundings, which lead to high wastage of water. In this research paper, a conceptual smart travelling sprinkler composed of a water pump and a motion motor is proposed. The suggested circuit design includes sensors that are capable of detecting soil conditions, such as moisture level and object proximity. The device power is provided by a s o l a r panel that is c o n n e c t ed to the water tank, which incorporates a level indicator. A series of push b u t t o n s and LCDs can be integrated for control purpose. The desired objective is the reduction of water consumption, and this brings us one-step closer to achieving the 2030 vision.
2020-01-01T00:00:00ZFirst Demonstration of Orange-yellow Light Emitter Devices in InGaP/ InAlGaP Laser Structure Using a Strain-induced Quantum Well Intermixing TechniqueA. Alnahhas, Layanhttp://hdl.handle.net/20.500.14131/2262022-11-15T14:22:52Z2020-01-01T00:00:00ZFirst Demonstration of Orange-yellow Light Emitter Devices in InGaP/ InAlGaP Laser Structure Using a Strain-induced Quantum Well Intermixing Technique
A. Alnahhas, Layan
In this paper, a novel strain-induced quantum well intermixing (QWI) technique is employed on an InGaP/InAlGaP material system to promote interdiffusion via application of a thick-dielectric encapsulant layer, in conjunction with cycle annealing at elevated temperature. With this technique, we demonstrate the first yellow superluminescent (SLD) at a wavelength of 583nm with a total two-facet output power of ~4.5mW—the highest optical power ever reported at this wavelength in this material system. The demonstration of the yellow SLD without complicated multiquantum barriers to suppress the carrier overflow will have a great impact in realizing the yellow laser diode that cannot be grown with conventional methods.
2020-01-01T00:00:00ZTraditional Domestic Architecture in Al-Baha RegionM. Baabdullah, Renadhttp://hdl.handle.net/20.500.14131/2252022-11-15T14:22:46Z2020-01-01T00:00:00ZTraditional Domestic Architecture in Al-Baha Region
M. Baabdullah, Renad
Al-Baha region embraces rich area of inherited Saudi traditional architecture that is highly threatened of perishing, and poorly documented, including a UNESCO world heritage site at Zee Ain Village. In this research paper, different urban fabric patterns of Al-Baha’s villages, and building techniques of stone houses are explained and analyzed in relation to the thoroughly discussed contextual conditions. The research clarifies how the environmental and sociocultural context shapes traditional domestic units. Preliminary plans and digital models have been developed for case studies that required more precise interpretation; fulfilling the documentary goal, and the interpretive approach of the research.
2020-01-01T00:00:00ZThe Effect of Service Quality and Switching Barrier on Customer Loyalty: A Study of Saudi Mobile Telecommunication ServicesGhazi Bamatraf, Yomenhttp://hdl.handle.net/20.500.14131/2242022-11-15T14:21:44ZThe Effect of Service Quality and Switching Barrier on Customer Loyalty: A Study of Saudi Mobile Telecommunication Services
Ghazi Bamatraf, Yomen
The Saudi mobile telecommunication services industry is currently facing lots of complaints, criticism and dissatisfaction from their customers regarding the quality of services, and customer loyalty may be in question. The industry is reportedly shifting its strategic focus away from attracting new customers towards keeping existing customers. The present study examined the relationship between service quality and customer loyalty, as well as between switching barriers and customer loyalty among a sample of 271 users of telecommunication services from Jeddah. A survey consisting of the Customer Loyalty Scale, the Service Quality Scale, and the Switching Barriers Scale, and some demographic related questions was used to collect the data. The results showed that there is a relationship between service quality and customer loyalty, however, no significant relationship was found between switching barriers and customer loyalty. The results are discussed in the light of current literature of customer loyalty and quality of services.