Publications by authors named "Mohamed Abdeen"
High levels of series compensation in transmission lines, particularly those integrated with wind farms, exacerbate the risk of sub-synchronous oscillation (SSO), a phenomenon detrimental to system stability. Gate-controlled series capacitor (GCSC) is one of the used means to mitigate the SSO and enhance power transfer capability. In the previous studies, the combined proportional-integral controller with supplementary damping controller was an effective approach for controlling the GCSC and mitigating the SSO.
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- The study addresses the challenge of variable solar radiation affecting the efficiency of solar dryers, especially for sensitive crops like basil leaves during winter.
- A hybrid solar dryer (HSD) combining solar energy and liquid petroleum gas (LPG) was developed, featuring an automatic air circulation system to enhance drying efficiency and accommodate varying weather conditions.
- Testing indicated that drying basil leaves at 60°C with a 90% air change rate significantly reduced drying time by up to 35.71% in summer and 35.56% in winter, while also improving energy consumption and product quality.
Article Synopsis
- The study explores the differences in recovery and clinical outcomes between mini-open TLIF and MIS-TLIF surgeries for patients with single-level lumbar degenerative spondylolisthesis, addressing the limitations of traditional open surgery.
- The research includes a retrospective analysis of 120 patients, comparing factors such as surgery duration, blood loss, and clinical improvements measured by the Oswestry Disability Index (ODI) and visual analog scale (VAS) scores.
- The findings aim to demonstrate that both surgical methods yield similar mid- and long-term outcomes while evaluating radiological parameters like lumbar lordosis and the rate of interbody fusion.
We present a case of a 58-year-old man who had asthma and developed necrotizing pneumonia (NP). The Computed Tomography (CT) scan of his chest showed cavitating consolidation with hydropneumothorax. Despite chest tube insertion and antibiotics, the patient did not improve.
View Article and Find Full Text PDFObjective: To evaluate the success rate of retrieving separated instrument, the root canal volume changes using cone-beam computed tomography and the retrieval time using Ruddle's technique, Terauchi file retrieval kit (TFRK) and Endo Rescue kit.
Methods: Sixty human mandibular first molars were selected, and a 4-mm portion of #25/.04 rotary files were separated in the middle third of moderately curved mesio-buccal canals.
Since it is requested that the smashed straw should not be scattered onto the stubble in the first season harvest, a smashing and scattering device matched with the first season harvester of ratoon rice was designed in this paper to smash and scatter the straw into the rolling area. The main structural parameters affecting the straw scattering performance were determined by theoretical analysis of the deflecting performance of the straw deflector. EDEM software was used to simulate and analyze the straw scattering situation under the action of the deflector.
View Article and Find Full Text PDFThe threshing unit is the main working unit of the combine harvester and plays an essential role in rice threshing efficiency, seed loss, and damage. Every thresher has its limitation for feeding, and when the feeding quantity exceeds the maximum rated amount, the thresher gets blocked, resulting in higher losses, low threshing efficiency, more power consumption, and combine overloading shutting down. This study constructed a longitudinal axial flow rice threshing platform, and a stress monitoring system for the threshing drum top cover was designed using force sensing resistors.
View Article and Find Full Text PDF(also called thorn apple or Jimson weed) is a plant that contains atropine, scopolamine, and hyoscyamine, giving it anticholinergic effects when consumed. We report the case of a 32-year-old male in Qatar who intentionally ingested seeds from Jimson weed mixed with milk. The patient became severely confused and delirious, eventually requiring admission to the intensive care unit (ICU) for two days for management.
View Article and Find Full Text PDFBackground: Numerous agents have been suggested for the symptomatic treatment of primary Raynaud's phenomenon. Apart from calcium channel blockers, which are considered to be the drugs of choice, evidence of the effects of alternative pharmacological treatments is limited. This is an update of a review first published in 2008.
View Article and Find Full Text PDFWe report on the successful use of dexmedetomidine to treat persistent intractable hiccup in a child who underwent cochlear implantation under sevoflurane-fentanyl anesthesia.
View Article and Find Full Text PDFBackground: Vagus nerve stimulation (VNS) has been approved for the treatment of refractory partial epilepsy in adults and children over 12 years of age. Later on, its application expanded to include younger children and other types of epilepsy. We report our experience with this treatment modality for refractory epilepsy in Saudi Arabia.
View Article and Find Full Text PDFBackground: There have been few published reports on severe Plasmodium falciparum and Plasmodium vivax malaria among adults in Africa.
Methods: Clinical pattern/manifestations of severe P. falciparum and P.