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Evaluation of the Quality of life of Patients Suffering from Chronic Rhinosinusitis in a Hospital Setting in Kinshasa

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International Journal of Otolaryngology and Head & neck Surgery 2024年第1期13卷 41-52页

作者： Hilaire K. Kalala Patricia K. Kakobo Honoré n. Yalombe lievin K. Mvita léon n. Muamba Dieudonné T. nyembue Otorhinolaryngology Service University of Kinshasa Democratic Republic of Congo Imaging Department University of Kinshasa Democratic Republic of Congo Ophthalmology Service University of Kinshasa Democratic Republic of Congo

Background and objective: Chronic rhinosinusitis (CRS), a common disease worldwide, has a major impact on patients’ quality of life (Qol). In recent years, the measurement of health-related Qol has made it possible to assess the patient’s state of health, the severity of the CRS and the treatment. The aim of this study was to assess the Qol of patients with CRS in a hospital setting in Kinshasa. Methods: This was a cross-sectional analytical study conducted from June 2020 to May 2021 in the EnT service of the Kinshasa University Hospital and the Monkole Hospital Center. The study involved 113 patients aged at least 18 years, whose QOl was compared with that of a control group consisting of 100 non-patients. QOl was assessed using the Sino-nasal Outcome Test (SnOT-22) Questionnaire. Results: The mean age of the patients was 41.0 years (18 - 74 years) and that of the controls was 39.1 years (19 - 77 years). More than half of the participants were university graduates. The median SnOT-22 score was 44 (14 - 78) in patients and 7 (1 - 40) in controls. Compared with subjects without CRS, patients with CRS had significantly higher scores in all four domains of the SnOT-22. Around 9 out of 10 patients had a severely impaired Qol compared with 2 out of 10 controls. Considering mildly impaired Qol, we found that in the otological and sleep domains, scores were not significantly different between patients and controls. In the case of severely impaired Qol, however, only the otological domain showed a non-significant difference in scores between the two groups. Conclusion: CRS is a real public health problem in our environment and significantly alters the Qol of patients suffering from it, with repercussions on their professional productivity;hence the need for better management.

关键词： Chronic Rhinosinusitis Quality of life SnOT-22 EnT Kinshasa

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浙江省SPEI分布与简化估算模型研究

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浙江水利科技 2024年第5期52卷 54-61页

作者：陈剑峰周培华杭州市富阳区湖源乡人民政府浙江杭州311400 杭州市萧山区浦阳江流域管理中心浙江杭州311200

为得出浙江省干旱趋势和简化估算模型,以全区域9个站点为研究对象,计算不同站点的标准化降雨蒸散指数(SPEI)。同时以卷积双向长短期记忆神经网络模型(Cnn-BilSTM)为基础,采用小波包变换(WPT)优化的蜣螂算法(DBO)和珍鲹算法(GTO),构建2... 详细信息

为得出浙江省干旱趋势和简化估算模型,以全区域9个站点为研究对象,计算不同站点的标准化降雨蒸散指数(SPEI)。同时以卷积双向长短期记忆神经网络模型(Cnn-BilSTM)为基础,采用小波包变换(WPT)优化的蜣螂算法(DBO)和珍鲹算法(GTO),构建2种优化组合模型,并比较不同模型精度,结果表明:全年春旱呈现逐渐加剧趋势,WPT-DBO-Cnn-BilSTM模型在所有模型中精度最高,可推荐用于预测全区不同尺度的SPEI。

关键词：浙江省标准化降雨蒸散指数卷积双向长短期记忆神经网络小波包变换蜣螂算法

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涤棉双层针织物的轻度亲疏水整理研究

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针织工业 2024年第7期 37-41页

作者：戴贺艳马湾湾程隆棣张佩华东华大学纺织学院上海201620

为提升涤棉双层针织物的亲肤感以及吸湿快干能力,选取双层针织物,内层为疏水层,由16.67 tex/144 f(150 D/144 f)十字截面涤纶长丝编织而成,外层为亲水层,由14.67 tex纯棉纱线编织而成,采用吸湿排汗整理剂TM对织物疏水面进行轻度亲水整理... 详细信息

为提升涤棉双层针织物的亲肤感以及吸湿快干能力,选取双层针织物,内层为疏水层,由16.67 tex/144 f(150 D/144 f)十字截面涤纶长丝编织而成,外层为亲水层,由14.67 tex纯棉纱线编织而成,采用吸湿排汗整理剂TM对织物疏水面进行轻度亲水整理,并采用疏水整理剂nuva n1802 liquid对织物亲水面进行轻度疏水整理。研究不同浓度的亲疏水整理剂对针织物吸湿快干性能的影响。测试透气率、透湿率、芯吸高度、干燥速率、动态水分传递等性能。结果表明:当涤纶表面采用0.1%亲水整理剂和棉层采用0.1%疏水整理剂,吸湿快干效果达到最优,透湿性和芯吸高度的提升增加了人体的亲肤感。

关键词：涤棉双层针织物亲疏水整理扩散导湿快干

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On B(5,20)2-Groups

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Algebra Colloquium 2024年第3期31卷 429-440页

作者： E.A.Alhassan Y.l.Tan Y.li School of Mathematical Sciences Jiangsu UniversityZhenjiangJiangsu 212013China Department of Mathematics Brock UniversitySt.CatharinesOntario L2S 3A1Canada

A finite group G is said to be a B(n,k)group if for any n-element subset[a_(1),…,a_(n)]of G,|{a_(i)a_(j)|1≤i,j≤n}|≤*** is of interest to characterize the structure of B(n,k)groups for n(n+1)/2≤k≤n^(2)-*** B(5,k)groups for 15≤k≤19 have been investigated by several *** this paper,we give a complete characterization of B(5,20)2-groups by showing there are five classes of such groups which are nontrivial and nonabelian.

关键词： B(n,k)groups small squaring property central extension GAP

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A multi-shot target wheel assembly for high-repetition-rate, laser-driven proton acceleration

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High Power laser Science and Engineering 2024年第02期 91-98页

作者： J.Pe?as A.Bembibre D.Cortina-Gil l.Martín A.Reija C.Ruiz M.Seimetz A.Alejo J.Benlliure Instituto Galego de Física de Altas Enerxías Universidade de Santiago de Compostela laboratorio láser de Aceleración y Aplicaciones RIAIDT Universidade de Santiago de Compostela Instituto Universitario de Física Fundamental y Matemáticas y Dpto.de Didáctica de la Matemática y de las Ciencias Experimentales Universidad de Salamanca Instituto de Instrumentación para Imagen Molecular (I3M) CSIC-Universitat Politècnica de València

A multi-shot target assembly and automatic alignment procedure for laser–plasma proton acceleration at high repetition rate are introduced. The assembly is based on a multi-target rotating wheel capable of hosting more than 5000 targets,mounted on a 3D motorized stage to allow rapid repl.nishment and alignment of the target material between laser irradiations. The automatic alignment procedure consists of a detailed mapping of the impact positions at the target surface prior to the irradiation that ensures stable operation of the target, which al.ngside the purpose-built design of the target wheel, enables operation at rates up to 10 Hz. Stable and continuous laser-driven proton acceleration at 10 Hz is demonstrated, with observed cut-off energy stability about 15%.

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Direct microwave leaching conditions of rare earth elements in fluorescent wastes

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Journal of Rare Earths 2024年第6期42卷 1165-1174,I0007页

作者： A.Bil.n B.Birol M.n.Saridede S.S.Kapl.n M.S.Sonmez Department of Metallurgical and Materials Engineering Yildiz Technical UniversityIstanbulTurkey Department of Chemical Engineering and Materials Science Stevens Institute of TechnologyNew JereyUSA Department of Metallurgical and Materials Engineering Istanbul Technical UniversityIstanbulTurkey

The luminescent phosphor powder in the fluorescent lamp constitutes 2%of the lamp’s *** can be mentioned that fluorescent wastes are a crucial raw material to produce rare earth *** the present study,microwave leaching process was conducted to dissolve rare earth elements yttrium(Y),europium(Eu),and remaining rare earth elements(REEs)present in the phosphor powder of the fluorescent *** the yields were *** the microwave leaching process,the effects of the temperature(80-160℃),acid type(hydrochloric acid(HCl),nitric acid(HnO_(3)),sulphuric acid(H_(2)SO_(4))),acid concentration(0.5-6 mol/l),solid to liquid ratio(0.1:10-0.5:10)and reaction time(5-90 min)parameters on leaching efficiencies of varying rare earth elements and calcium were *** highest yield was obtained in the direct microwave leaching of fluorescent waste with the experimental conditions of 6 mol/l HCl,160℃,0.1:10 solid-to-liquid ratio(S:l),and 90 *** energy calculations were made,and kinetic models of the reactions were obtained,and it is observed that Y and Eu dissolution is diffusion-controlled,on the other hand,l.nthanum(la),cerium(Ce),and terbium(Tb)were examined to be chemical reaction ***,calcium(Ca)and gadol.nium(Gd)seem coherent with the mixed ***,mathematical models of all experimental studies are created with the response surface Box-Behnken method and the correlation coefficients of all the models are over 90%.

关键词： Rare earth elements(REEs) Direct microwave leaching Fluorescent waste Kinetic models Response surface method

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Preparation of a halogen-free P/n/Si flame retardant monomer with reactive siloxy groups and its application in cotton fabrics

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Chinese Journal of Chemical Engineering 2017年第9期25卷 1322-1328页

作者： peihua Zhao Kuankuan Xiong Wentao Wang Yaqing liu School of Materials Science and Engineering North University of China

A novel halogen-free phosphorus–nitrogen–silicon flame retardant monomer with reactive siloxy groups,n-(diphenylphosphino)-1,1-diphenyl.n-(3-(triethoxysilyl)propyl) phosphinamine(DPTA) has been synthesized and was applied to the fire-resistant finishing of cotton fabrics. The molecular structure of DPTA has been well characterized by elemental analysis, FTIR,1H nMR, and ^(31)P nMR spectroscopies. The chemically-grafted cotton fabrics, which were treated with 25 wt% DPTA, were obtained and confirmed by attenuated total reflectance Fourier infrared spectroscopy(ATR-FTIR). The flame retardancy and thermal property of the treated samples were investigated by limited oxygen index(lOI), vertical flammability test(VFT), thermogravimetric analysis(TGA) and microscale combustion calorimeter(MCC). It is noted that in vertical flammability test, the treated samples extinguished immediately upon removing the ignition source, whereas the untreated one was completely burned out. Furthermore, TGA and MCC tests revealed that the treated samples produced a high char formation and a low heated release during combustion. The surface morphology of the untreated and treated samples and the char residues after lOI tests were observed by scanning electron microscopy(SEM). Therefore, all the results showed that the treated cotton fabrics with 25 wt% DPTA apparently improved the fireresistant and thermal performances.

关键词： P/n/Si flame retardant Synthesis Cotton fabrics Flame retardancy

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Three-dimensional analysis of age and sex differences in femoral head asphericity in asymptomatic hips in the United States

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World Journal of Orthopedics 2024年第8期15卷 754-763页

作者： Mahad M Hassan Aliya G Feroe Brenton W Douglass Andrew E Jimenez Benjamin Kuhns Charles F Mitchell Robert l Parisien Daniel A Maranho Eduardo n novais Young-Jo Kim Ata M Kiapour Department of Orthopedic Surgery University of MinnesotaMinneapolisMN 55454United States Department of Orthopedic Surgery TRIA Orthopaedic CenterBloomingtonMN 55122United States Department of Orthopedic Surgery Boston Children’s HospitalBostonMA 02115United States Department of Orthopedic Surgery Mayo ClinicRochesterMN 55901United States Department of Orthopaedics and Rehabilitation Yale School of MedicineNew HavenCT 06510United States Department of Orthopedic Surgery American Hip Institute Research FoundationDes PlainesIL 60018United States Department of Orthopedic Surgery Mount SinaiNew YorkNY 10029United States Department of Biomechanics Medicineand Rehabilitation of the Locomotor SystemRibeirao Preto Medical SchoolUniversity of São PauloRibeirao Preto 14048-900São PauloBrazil

BACKGROUnD The sphericity of the femoral head is a metric used to evaluate hip pathologies and is associated with the development of osteoarthritis and femoral-acetabular *** To analyze the three-dimensional asphericity of the femoral head of asymptomatic pediatric *** hypothesized that femoral head asphericity will vary significantly between male and female pediatric hips and increase with age in both *** Computed tomography scans were obtained on 158 children and adolescents from a single institution in the United States(8-18 years;50%male)without hip *** femoral measurements including the femoral head diameter,femoral head volume,residual volume,asphericity index,and local diameter difference were used to evaluate femoral head *** In both sexes,the residual volume increased by age(Pnificantly smaller femoral head size in older ages(>13 years)in females,there were no sex-differences in residual volume and aspherity *** were no age-related changes in mean diameter difference in both sexes(P=0.07)with no significant sex-differences across different age groups(P=0.06).In contrast,there were significant increases in local aspherity(maximum diameter difference)across whole surface of the femoral head and all quadrants except the inferior regions in males(P=0.03).There were no sex-differences in maximum diameter difference at any regions and age group(P>0.05).Increased alpha angle was only correlated to increased mean diameter difference across overall surface of the femoral head(P=0.024).COnClUSIOn There is a substantial localized asphericity in asymptomatic hips which increases with age *** 2D measured alpha angle can capture overall asphericity of the femoral head,it may not be sensitive enough to represent regional asphericity patterns.

关键词： Hip Femoral head Sphericity Skeletal growth Sex differences

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ADAPTABlE DESIGn OF MACHInE TOOlS STRUCTURES

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Chinese Journal of Mechanical Engineering 2008年第3期21卷 7-15页

作者： XU Yanshen CHEn Yongliang ZHAnG Guojun GU peihua School of Mechanical Engineering Tianjin University Tianjin 300072 China School of Mechanical Science and Engineering Huazhong University of Science and Technology Wuhan 430074 China Department of Mechatronic Engineering Shantou University Shantou 515063 China School of Mechanical Science and Engineering Huazhong University of Science and Technology Wuhan 430074 China Department of Mechanical and Manufacturing Engineering University of Calgary Calgary T2N 1N4 Canada

Adaptable design aims to extend the utilities of design and product. The specific methods are developed for practical applications of adaptable design in the design of mechanical structures, including adaptable platform, interface and module designs. Adaptable redesign problems are formulated as adaptable platform design under adaptability bound constraints. Analysis tools are then suggested for the implementation of the redesign of machine tool structures, including variation techniques based sensitivity analysis, similarity-based commonality analysis, performance improvement, and adaptability measures. The specific measure of adaptability for machine tool structures is measured through the quantification of the structural similarity and performance improvement gained from adaptable design. The method provides designers with an approach that brings adaptability into the design process, with considering the cost and benefits of such adaptability. The redesign of CnC spiral bevel gear cutting machine structures has been included to illustrate these concepts and methods.

关键词： Adaptable design Machine tools

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Spoon-assisted autologous particulate bone graft harvesting technique

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Chinese Journal of Plastic and Reconstructive Surgery 2024年第2期6卷 106-108页

作者： Inigo Aragon nino Clara lopez Martínez Carol.na Cuesta Urquía Agustín Pascual Camps Jose luis Del Castillo Pardo de Vera Jose luis Cebrian Carretero Oral and Maxillofacial Surgery Department La Paz University Hospital28046 MadridSpain

Particulate bone plays a crucial role in various oral and maxillofacial surgical procedures,including reconstruction,impl.ntation,and craniofacial *** bone and deproteinized bovine bone xenografts are the two primary resources used for such procedures,with the former demonstrating superior cost-effectiveness and reduced comorbidity rates,particularly in cases involving donor ***,a significant chall.nge lies in acquiring uniformly sized autologous particulate bone specimens,with existing tools often yielding coarse particles at a high ***,commercial bone xenograft solutions are frequently favored despite lower *** technical.note introduces a novel technique for swiftly,safely,and efficiently obtaining autologous particulate bone *** procedure involves the use of a motor handpiece fitted with a micro drill and surgical spoon to collect the bone *** continuous irrigation with sal.ne maintains a clear surgical field during the mill.ng *** collected bone particles are then transferred to a metal capsule for further *** technique offers a promising solution to the chall.nge of inconsistent particle size associated with harvesting using traditional methods,providing surgeons with a reliable and efficient method of obtaining autologous particulate bone samples.

关键词： Bone grafting Reconstructive surgery Craniofacial surgery Impl.nt surgery Autologous bone

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