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New Antenna Array Beamforming Techniques Based on Hybrid Convolution/Genetic Algorithm for 5G and Beyond Communications

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Computer Modeling in Engineering & Sciences 2024年第3期138卷 2749-2767页

作者： Shimaa M.Amer Ashraf A.M.Khalaf Amr H.hussein Salman A.Alqahtani Mostafa H.Dahshan Hossam M.Kassem Electronics and Communications Engineering Department Higher Institute of Engineering and TechnologyKafr ElsheikhEgypt Electronics and Electrical Communications Engineering Department Faculty of EngineeringMinia UniversityMiniaEgypt Electronics and Electrical Communications Engineering Department Faculty of EngineeringTanta UniversityTantaEgypt Electronics and Electrical Communications Engineering Department Faculty of EngineeringHorus University EgyptNew DamiettaEgypt Department of Computer Engineering College of computer and Information SciencesKing Saud UniversityRiyadh11543Saudi Arabia School of Computing Mathematics and EngineeringCharles Sturt UniversityBathurstNSW2795Australia

Side lobe level reduction(SLL)of antenna arrays significantly enhances the signal-to-interference ratio and improves the quality of service(QOS)in recent and future wireless communication systems starting from 5G up to ***,it improves the array gain and directivity,increasing the detection range and angular resolution of radar *** study proposes two highly efficient SLL reduction *** techniques are based on the hybridization between either the single convolution or the double convolution algorithms and the genetic algorithm(GA)to develop the Conv/GA andDConv/GA,*** convolution process determines the element’s excitations while the GA optimizes the element *** M elements linear antenna array(LAA),the convolution of the excitation coefficients vector by itself provides a new vector of excitations of length N=(2M−1).This new vector is divided into three different sets of excitations including the odd excitations,even excitations,and middle excitations of lengths M,M−1,andM,*** the same element spacing as the original LAA is used,it is noticed that the odd and even excitations provide a much lower SLL than that of the LAA but with amuch wider half-power beamwidth(HPBW).While the middle excitations give the same HPBWas the original LAA with a relatively higher *** the increased HPBWof the odd and even excitations,the element spacing is optimized using the ***,the synthesized arrays have the same HPBW as the original LAA with a two-fold reduction in the ***,for extreme SLL reduction,the DConv/GA is *** this technique,the same procedure of the aforementioned Conv/GA technique is performed on the resultant even and odd excitation *** provides a relatively wider HPBWthan the original LAA with about quad-fold reduction in the SLL.

关键词： Array synthesis convolution process genetic algorithm(GA) half power beamwidth(HPBW) linear antenna array(LAA) side lobe level(SLL) quality of service(QOS)

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Lupus and Pregnancy

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Open Journal of Rheumatology and Autoimmune Diseases 2024年第3期14卷 125-131页

作者： Soukaina Zaher hussein Boufettal Kawtar Nassar Naima Samouh Saadia Janani Rheumatology Department Ibn Rochd University Hospital of Casablanca Faculty of Medicine and Pharmacy Hassan II University Casablanca Morocco Obstetrics and Gynecology Department Ibn Rochd University Hospital of Casablanca Faculty of Medicine and Pharmacy Hassan II University Casablanca Morocco

Introduction: Systemic lupus erythematosus is a multifactorial autoimmune disease characterised by its clinical polymorphism and its course in flares. The aim of our study was to determine the effects of pregnancy on lupus and vice versa. Material and Methods: This is a retrospective study conducted over a period of 14 years from 2002 to 2015. We included cases of systemic lupus erythematosus associated with pregnancy followed at the obstetrics and gynecology department “C” of the Ibn Rochd University Hospital in Casablanca. Results: The mean age of our parturients was 31.4 years. All our patients were known to have lupus and were followed up. Pregnancy was terminated in six (20%) cases. We noted one (3%) case of intrauterine fetal death, four (13%) cases of intrauterine growth retardation, and five (16%) cases of prematurity. Lupus flare during pregnancy occurred in 16 (52%) cases, including one (3%) patient who developed superimposed pre-eclampsia, had a renal relapse in the third trimester requiring an abortion at 32 weeks of gestation with three sessions of hemodialysis, and another patient who developed eclampsia. Conclusion: A better understanding of the aggravating factors and compatible treatments has led to a more widespread authorization of pregnancy.

关键词： Systemic Lupus Erythematosus Pregnancy Morbidity Prognosis Retrospective Study

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Knowledge‐based deep learning system for classifying Alzheimer's disease for multi‐task learning

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CAAI Transactions on Intelligence Technology 2024年第4期9卷 805-820页

作者： Amol Dattatray Dhaygude Gaurav Kumar Ameta Ihtiram Raza Khan Pavitar Parkash Singh Renato R.Maaliw III Natrayan Lakshmaiya Mohammad Shabaz Muhammad Attique Khan Hany S.hussein Hammam Alshazly Department of Data Science University of WashingtonSeattleWashingtonUSA Department of Computer Science&Engineering Parul Institute of TechnologyParul UniversityVadodaraGujaratIndia Department of Computer Science Jamia HamdardDelhiIndia Department of Management Lovely Professional UniversityPhagwaraIndia 5 College of Engineering Southern Luzon State UniversityLucbanQuezonPhilippines Department of Mechanical Engineering Saveetha School of EngineeringSIMATSChennaiTamil NaduIndia Model Institute of Engineering and Technology JammuJ&KIndia Department of Computer Science HITEC UniversityTaxilaPakistan Department of Computer Science and Mathematics Lebanese American UniversityBeirutLebanon Electrical Engineering Department College of EngineeringKing Khalid UniversityAbhaSaudi Arabia Electrical Engineering Department Aswan UniversityAswanEgypt Faculty of Computers and Information South Valley UniversityQenaEgypt

Deep learning has recently become a viable approach for classifying Alzheimer's disease(AD)in medical ***,existing models struggle to efficiently extract features from medical images and may squander additional information resources for illness *** address these issues,a deep three‐dimensional convolutional neural network incorporating multi‐task learning and attention mechanisms is *** upgraded primary C3D network is utilised to create rougher low‐level feature *** introduces a new convolution block that focuses on the structural aspects of the magnetORCID:ic resonance imaging image and another block that extracts attention weights unique to certain pixel positions in the feature map and multiplies them with the feature map ***,several fully connected layers are used to achieve multi‐task learning,generating three outputs,including the primary classification *** other two outputs employ backpropagation during training to improve the primary classification *** findings show that the authors’proposed method outperforms current approaches for classifying AD,achieving enhanced classification accuracy and other in-dicators on the Alzheimer's disease Neuroimaging Initiative *** authors demonstrate promise for future disease classification studies.

关键词： classification deep learning

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Influence of erbium on structural,and charged particles,photons,and neutrons shielding properties of Ba_(1-x)Er_(x)SnO_(3) perovskite ceramics

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Journal of Rare Earths 2024年第4期42卷 724-732页

作者： M.K.h.Hamad Nidal Dwaikat M.H.A.Mhareb M.I.Sayyed R.M.Hamad Y.S.M.Alajerami M.A.Almessiere Gameel Saleh Ahmad hussein Alomari K.A.Ziq Department of Basic Sciences School of Social and Basics SciencesAl Hussein Technical UniversityKing Abdullah II St 242Amman11831Jordan Department of Physics College of Engineering and PhysicsInterdisciplinary Research Center for Advanced MaterialsKing Fahd University of Petroleum&MineralsDhahran31261Saudi Arabia Department of Physics College of ScienceImam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia Basic and Applied Scientific Research Center Imam Abdulrahman Bin Faisal UniversityP0.Box 1982Dammam31441Saudi Arabia Department of Physics Faculty of ScienceIsra UniversityAmman11622Jordan Department of Nuclear Medicine Research Institute for Research and Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityPo.Box 1982Dammam31441Saudi Arabia Medical Imaging Department Applied Medical Sciences FacultyAl Azhar University-Gaza CityPo.Box 1277Palestine Department of Biophysics Institute for Research and Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityPo.Box1982Dammam 31441Saudi Arabia Department of Biomedical Engineering College of EngineeringImam Abdulrahman Bin Faisal UniversityPo.Box 1982Dammam31441Saudi Energy&Minerals Regulatory Commission Amman11821Jordan

Five perovskite ceramics samples of Ba_(1-x)Er_(x)SnO_(3) with x=0.00,0.05,0.10,0.15,and 0.20 were synthesized using the conventional solid-state reaction *** prepared samples were characterized by X-ray diffraction(XRD),Fourier transforms infrared(FTIR),and UV-Vis *** shielding properties against ionizing radiation were also *** XRD analysis shows the perovskite cubic structure as the major phase in all *** FTIR reveals a distinctive band around 614-620 cm^(-1) ascribed to the antisymmetric O-Sn-O ***-Vis spectroscopy was used to determine the bandgap according to diffuse reflectance,and the results display a fixed enhancement in the bandgap from 3.2 to 3.3 eV for all ***-ray shielding properties of the synthesized samples were experimentally measured and compared with XCOM computational *** relative differences(Δ,%)between experimental and theo retical values are low and fall within the 0.446%-7.10%*** addition of Er leads to the enhanced density,neutron,and gamma shielding *** contrast,charged particles’shielding parameters gradually reduce with rising Er *** results suggest that Ba_(1-x)Er_(x)SnO_(3) samples can be used in different radiation shielding applications.

关键词： Perovskite Ceramics Gamma ray shielding Mass stopping power Rare earths

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加速康复外科对初次全膝关节置换术后血液管理的影响：倾向评分匹配分析

加速康复外科对初次全膝关节置换术后血液管理的影响：倾向评分匹...

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作者： Mogalli Abdullah Saleh hussein Ahmed 吉林大学

学位级别：硕士

背景:全膝关节置换术(TKA)是缓解慢性膝关节炎患者关节疼痛和增强关节功能的重要手段。TKA的并发症常常与大量失血相关,并直接导致术后血红蛋白水平下降,从而高达69%的患者需要异体输血来应对术后贫血。这已被证明是增加不良结果风险的... 详细信息

背景:全膝关节置换术(TKA)是缓解慢性膝关节炎患者关节疼痛和增强关节功能的重要手段。TKA的并发症常常与大量失血相关,并直接导致术后血红蛋白水平下降,从而高达69%的患者需要异体输血来应对术后贫血。这已被证明是增加不良结果风险的独立因素,包括延长住院时间和增加术后感染的易感性。由丹麦学者Henrik Kehlet于1997年首次提出的加速康复外科(ERAS)已成为现代外科实践中的一个关键方法。ERAS最初在腹部手术中实施,逐渐扩展到包括骨科和泌尿科在内的各个医学专业。然而,尽管ERAS方案的采用日益增加,系统评估关节置换术后的血液指标仍然有限。这种多方面的策略在减轻手术压力、加速术后恢复、减少住院时间和提高整体功能结果方面发挥着重要作用,同时保持低并发症率。之前的研究已证明ERAS在减少失血和优化全髋关节置换术结果方面的有效性。问题是这些发现是否也适用于TKA。THA和TKA之间的关键区别,包括患者人口统计学、手术时间和软组织损伤程度,强调了优化每项手术中患者护理的需要。TKA患者通常比THA患者平均年龄更大,皮肤对皮肤时间更长,并且由于股骨和胫骨截骨术,软组织损伤增加。ERAS方案有效控制围手术期失血量。ERAS组术后CRP和ESR水平较低,表明炎症和凝血活动减少,这可能归因于ERAS计划提供的全面护理,其中包括人性化和以患者为中心的干预措施,以减轻焦虑。ERAS手术已显示出相当大的好处,例如通过利用术前优化、术中程序和术后管理等循证策略,最大限度地减少围手术期失血、降低并发症和改善营养状况。WOMAC、OKS和SF-12的理想结果表明ERAS方案有利于改善术后短期内的短期恢复和生活质量结果。目的:评估在加速康复外科(ERAS)下进行单侧全膝关节置换术(TKA)的患者的血液指标管理效果。材料与方法:回顾性研究了2019年1月至2023年10月在我们医院接受单侧TKA的患者。通过使用0.2校准器进行倾向评分匹配后,这些病例被分为两组:非ERAS组(n=51)接受标准护理,ERAS组(n=51)接受全面ERAS管理。术后比较了主要血液参数/血液指标,同时在第3个月随访时也评估了临床结果。结果:ERAS组术后Hb明显高于非ERAS组(P<0.05)。非ERAS组术前ESR明显高,而ERAS组CRP明显低于非ERAS组(P<0.05)。ERAS组的LOS和Alb明显少于非ERAS组(P<0.05)。WOMAC和OKS得分在第1个月和第3个月均在ERAS组。结论:ERAS方案在术后第一天到第三个月的术后期间提供了良好且现实的临床和功能结果,对接受单侧初次TKA的患者满意度很高。此外,ERAS方案已被证明可以有效减少围手术期失血、最大限度地减少术后并发症并维持这些患者的最佳营养水平。

关键词：全膝关节置换术快速康复血液管理住院时间并发症随访

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Bilateral Congenital Upper Eyelid Eversion (Ectropion): A Rare Presentation Responded Well to Conservative Treatment at Temeke Regional Referral Hospital-Tanzania

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Open Journal of Ophthalmology 2024年第3期14卷 204-207页

作者： Husna Msangi Annamary Stanslaus hussein Msuma Salha Omary Milka Mafwiri Department of Ophthalmology Temeke Regional Referral Hospital Dar-es-salaam Tanzania Department of Surgery and Urology Temeke Regional Referral Hospital Dar-es-salaam Tanzania Department of Paediatric and Child Health Temeke Regional Referral Hospital Dar-es-salaam Tanzania Department of Ophthalmology Muhimbili University of Health and Allied Sciences Dar-es-salaam Tanzania

Congenital eversion of the upper eyelids is a rare condition, the exact cause of which remains unknown. It is more frequently associated with Down’s syndrome and black babies. If diagnosed early and treated properly, the condition can be managed without surgery. We report a case of non syndromic congenital bilateral severe upper eyelid eversion in otherwise normal 3 days old neonate of African descent (Tanzanian), born by vaginal delivery. The case was conservatively managed by lubricants, antibiotics and eyelid patching. We report this case because from the best of our knowledge it has never been documented here at our hospital and Tanzania before.

关键词： Upper Eyelid Eversion Congenital Ectropion Conservative Management

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Disruption of sleep patterns among secondary school adolescents

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Journal of Integrative Nursing 2024年第3期6卷 145-149页

作者： Zeki Sabah MUSIHB Hasan Saud Abdul hussein Alaa Mahdi Abd ALI Department of Pediatric Nursing College of NursingUniversity of KerbalaKerbalaIraq

Objectives:This study aims to assess sleep disorders among secondary school adolescents and explore the relationship between sociodemographic factors(age,gender,household income,and sleep duration)and the occurrence of these ***:A quantitative,descriptive,cross-sectional study,was conducted from November 20th,2022,to May 25th,2023,involving 200 secondary school students selected through convenience *** collection utilized a structured questionnaire divided into sociodemographic and sleep disorder *** was ensured by a panel of ten experts,and reliability was confirmed using Cronbach’s Alpha(0.77).Statistical analysis employed SPSS version ***:Findings revealed that a majority of participants(70.5%)had low-level sleep disorders,followed by moderate disorders represented(29%).Significant associations were found between sleep disorders and gender(P=0.000),economic status for family(P=0.020),and nightly sleep duration(P=0.016).However,no significant relationship was observed between sleep disorders and family structure or age(P>0.05).Conclusions:The study highlights that most secondary school students experience mild sleep disorders,followed by moderate ***,gender,income,and sleep duration showed significant correlations with sleep disorders.

关键词： Disruption of sleep secondary school adolescents sleep patterns

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多用途新颖紧凑可调谐双频无线电能传输系统设计（英文）

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Frontiers of Information Technology & Electronic Engineering 2024年第4期 616-629页

作者： Hany A.ATALLAH Rasha hussein AHMED Adel B.ABDEL-RAHMAN 南谷大学工程学院通信与电子学系埃及-日本科技大学

本文设计并实现了一个可调谐双频无线电能传输耦合谐振器系统。可调谐波段的频率响应可以使用表面贴装变容二极管进行控制。发射器和接收器电路是对称的。顶层包含一个阻抗为50Ω的馈线。通过使用变容二极管，两个相同的半环缺陷接地结... 详细信息

本文设计并实现了一个可调谐双频无线电能传输耦合谐振器系统。可调谐波段的频率响应可以使用表面贴装变容二极管进行控制。发射器和接收器电路是对称的。顶层包含一个阻抗为50Ω的馈线。通过使用变容二极管，两个相同的半环缺陷接地结构被加载在底部。针对工作在单频段（基于工作频率）的受限无线电能传输系统，提出一种解决方案。研究了几何形状、方向、相对距离和偏移对耦合系数的影响。为验证仿真结果，制作并测试了所提可调谐双频无线电能传输系统。系统面积为40 mm×40 mm。在有效传输距离为22 mm时，在817～1018 MHz调谐频段，以98%的平均耦合效率向接收器输送电能，在1.6GHz固定频段，效率为95%。测量结果与等效模型的模拟结果吻合较好。

关键词：缺陷接地结构表面贴装可调谐双频无线电能传输变容二极管

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Effect of Saline Water on Soil Acidity, Alkalinity and Nutrients Leaching in Sandy Loamy Soil in Rwamagana Bella Flower Farm, Rwanda

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Agricultural Sciences 2024年第1期15卷 15-35页

作者： Abel Mwubahaman Wali Umaru Garba hussein Bizimana Jean de Dieu Bazimenyera Eric Derrick Bugenimana Jean Nepomuscene Nsengiyumva Department of Irrigation and Drainage School of Agriculture Engineering College of Agriculture Animal Science and Veterinary Medicine University of Rwanda Nyagatare Campus Kigali Rwanda Department of Agricultural Engineering Rwanda Polytechnic—IPRC Gishari Kigali Rwanda

The necessity to saline and sodic waters is sometimes used for irrigating agricultural activities under certain circumstances, but it is important to note that the use of these waters comes with specific considerations and limitations. One way to decrease undesirable effects of sodic waters on the physical and chemical properties of soils is to apply organic and chemical amendments within the soil. This study aimed to assess the effectiveness of saline water on soil acidity, alkalinity and nutrients leaching in sandy loamy soil at Bella flower farm, in Rwamagana District, Rwanda. The water used was from the Muhazi Lake which is classified as Class I (Saline water quality). Column leaching experiments using treated soils were then conducted under saturated conditions. The soil under experimental was first analyzed for its textural classification, soil properties and is classified as sandy loamy soil. The t-test was taken at 1%, 5% and 10% levels of statistical significance compared to control soil. The results indicated that the application of saline water to soils caused an increase in some soil nutrients like increase of Phosphorus (P), Potassium (K+), Magnesium (Mg2+), Sulphur (S), CN ratio and Sodium (Na+) and decreased soil texture, physical and chemical properties and remained soil nutrients. Consequently, the intensive addition of saline water leachates to soil in PVC pipes led to decreased of soil EC through leaching and a raiser Soluble Sodium Percentage (SSP). The rate of saline water application affected the increase accumulation of SAR and Na% in the top soil layers. The study indicated that saline water is an inefficient amendment for sandy soil with saline water irrigation. The study recommends further studies with similar topic with saline water irrigation, as it accentuated the alkalinity levels.

关键词： Nutrients Leaching Saline Water Soil Acidity Soil Alkalinity

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含二硫化硒洗发水对中-重度头皮脂溢性皮炎外用糖皮质激素/水杨酸治疗后的疗效维持作用

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中华皮肤科杂志 2024年第5期57卷 483-484页

作者： Philippe Massiot Pascal Reygagne Corinne Chagnoleau Leila Kanoun-Copy Florence Pouradier Geneviève Loussouarn Catherine Queille-Roussel hussein Jouni Delphine Kerob L'Oréal Research and Innovation Saint-Ouen France. Centre Sabouraud Hôpital Saint-Louis 1 avenue Claude-Vellefaux 75010 Paris France. CPCAD Hôpital l'Archet Nice France. L'Oréal Research and Innovation Aulnay-sous-Bois France. Cosmetic Active International Levallois-Perret France.

脂溢性皮炎是一种慢性炎症性皮肤病,好发于头皮、面部和躯干等皮脂腺分布丰富的部位。头皮脂溢性皮炎主要表现为红斑和片状鳞屑,程度从轻度鳞屑到弥漫性大片黏着性鳞屑不等,伴有明显的瘙痒,并容易反复发作。目前认为脂溢性皮炎的发生与... 详细信息

脂溢性皮炎是一种慢性炎症性皮肤病,好发于头皮、面部和躯干等皮脂腺分布丰富的部位。头皮脂溢性皮炎主要表现为红斑和片状鳞屑,程度从轻度鳞屑到弥漫性大片黏着性鳞屑不等,伴有明显的瘙痒,并容易反复发作。目前认为脂溢性皮炎的发生与亲脂性马拉色菌定植增加以及遗传、环境和全身健康状况等因素相关,上述因素共同导致皮脂腺代谢活动异常、皮脂成分改变、表皮屏障功能障碍,最终加重炎症反应。

关键词：头皮脂溢性皮炎二硫化硒洗发水亲脂性炎症反应马拉色菌皮脂腺黏着性

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