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Effect of Plasma on the Zeta Potential of Cotton Fabrics

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Plasma science and Technology 2013年第5期15卷 455-458页

作者： A. r.s.IDI s. sHAHIDI M. GHOrANNEVIss s. DALALsHArIFI J. wiener Department of Textile Faculty of Engineering Science and Research Branch Islamic Azad University Department of Textile Faculty of Engineering Islamic Azad University Arak Branch Plasma Physics r.s.arch Center Science and Research Branch Islamic Azad University Department of Textile Chemistry Faculty of Textile Technical University of Liberec

In this work, the effect of a low-temperature plasma on the zeta potential of cotton fabric was studied. The silver particle absorption on cotton fabric when modified by a low-temperature plasma was also investigated. The modification consisted of plasma pre functionalization followed by a one-step wet treatment with silver nitrate solution. The process was performed in a low-temperature plasma medium, using a magnetron sputtering device. Oxygen and nitrogen were used as working gases in the system, and the r.s.lts were compared. After preparing the samples, the zeta potentials of the untreated and plasma-treated cotton under a constant pH value solution were estimated and compared. Also, Fourier transform infrared spec tr.s.opy （FTIr） was used to examine the functional groups of the corr.s.onding samples. The amounts of silver absorption on plasma treated and untreated cotton were examined using the energy dispersive X-ray （EDX） method. The r.s.lts show that the amount of zeta potential for the nitrogen plasma treated sample is less and the absorption of silver particles by cotton can be increased strongly with nitrogen plasma treatment.

关键词： plasma zeta-potential fabric

Determining the Utility of Pathologic Analysis of Ureteral specimens Obtained from repair of Vesicoureteral reflux and Ureterovesical Junction Obstruction in Children: Potential for Physician-Initiated Cost-reduction

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Open Journal of Urology 2013年第8期3卷 304-307页

作者： Unwanaobong Nseyo Mark r. Anderson John s. wiener Division of Urologic surgery Department of Surgery Duke University Medical Center Durham USA

Purpose: Partial r.s.ction of the distal ureter is commonly performed during reconstructive surgery in pediatric urology;particularly for correction of vesicoureteral reflux (VUr) and ureterovesical junction obstruction (UVJO). Many hospitals require pathologic examination of all excised tissues. We examined the pathologic findings in such specimens to evaluate the utility of this practice. Methods: We reviewed the findings on pathologic examination of distal ureteral segments excised during surgical correction of VUr and UVJO in children by a single surgeon over a 13-year period. r.s.lts: One hundred and ninety-one specimens from 126 patients were reviewed. None were found to have any significant pathologic findings that impacted therapy. Conclusion: routine pathological examination of distal ureteral segments excised during surgical correction of VUr and UVJO is not warranted. This pr.s.nts potential for cost and r.s.urce reduction in care of these patients.

关键词： Vesicoureteral reflux Ureterovesical Junction Obstruction surgical reimplantation Ureteral Pathology

“从基因到社会”——约翰·霍普金斯大学医学院新型课程体系的设计逻辑与实施进程

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复旦教育论坛 2012年第3期10卷 90-96页

作者： wiener CM 汪青殷侃骅约翰.霍普金斯大学医学院美国巴尔的摩21205 复旦大学上海医学院上海200032

2009年,约翰·霍普金斯大学医学院实施了一项全新的课程体系——"从基因到社会",其目的在于:更为宽泛地重构健康与疾病的相互关系,鼓励学生们在一个包含社会、文化、心理和环境等多维变量的综合系统中探索与患者的健康状况相关的生物学... 详细信息

2009年,约翰·霍普金斯大学医学院实施了一项全新的课程体系——"从基因到社会",其目的在于:更为宽泛地重构健康与疾病的相互关系,鼓励学生们在一个包含社会、文化、心理和环境等多维变量的综合系统中探索与患者的健康状况相关的生物学特性。本文描述了新课程的设计理念及其五年规划过程,包括课程目标的确定、课程的构建、新教学楼的建造、学生自身能力及教师发展的促进、横向和纵向结构的建立等。应对新课程挑战的关键因素在于:领导的支持、与教职员工的对话和沟通、不同群体和层面的广泛参与、避免井蛙之见、通过课程试点来测试教学理念和方法等。

关键词：医学教育课程教育改革约翰·霍普金斯大学医学院

纤维弯曲对其集合体过滤特性影响的稳态数值分析

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纺织学报 2024年第7期45卷 31-39页

作者：刘倩倩尤健明王琰孙成磊 JIrI Militky DANA Kremenakova JAKUB wiener 祝国成浙江理工大学纺织科学与工程学院(国际丝绸学院) 浙江杭州310018 浙江朝晖过滤技术股份有限公司浙江嘉兴314511 浙江理工大学浙江-捷克先进纤维材料联合实验室浙江杭州310018 利贝雷茨理工大学纺织工程学院捷克利贝雷茨46117 浙江省现代纺织技术创新中心(鉴湖实验室) 浙江绍兴312000

为探究纤维过滤介质中纤维曲率对其内部速度分布、压力损失、过滤效率的影响,通过Digimat建模软件建立曲率K分别为0、2、4、6,固体体积分数为8%,在三维空间中随机分散排列的纤维过滤介质模型,结合计算流体力学方法,基于拉格朗日离散模型... 详细信息

为探究纤维过滤介质中纤维曲率对其内部速度分布、压力损失、过滤效率的影响,通过Digimat建模软件建立曲率K分别为0、2、4、6,固体体积分数为8%,在三维空间中随机分散排列的纤维过滤介质模型,结合计算流体力学方法,基于拉格朗日离散模型和Laminar流场,利用雷诺相似准则,设置入口速度分别为0.05、0.142、0.5、1、2 m/s,平均颗粒粒径为0.25、0.5、1、1.5、2.5、4、5 mm,对微米纤维模型内部气-固两相流动情况进行数值模拟。结果表明:随着纤维曲率K由0增大至6,在入口速度为0.5 m/s时,纤维曲率对速度场分布的影响不明显,速度场的分布呈无规律性;纤维曲率对模型内部压力损失有显著影响,随着纤维曲率的提高,纤维模型内部压力损失呈线性增大;纤维过滤介质的过滤效率随纤维模型曲率的增大而提高,在入口速度为1 m/s、模型曲率K为6时,对平均粒径为5 mm的颗粒过滤效率接近90%,明显高于相同粒径下K为0时的过滤效率。

关键词：计算流体力学纤维曲率压力损失数值模拟过滤效率

Endangered lowland oak for.s. steppe remnants keep unique bird species richness in Central Hungary

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作者： s.·威纳(s. wiener)

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Journal of For.s.ry r.s.arch 2022年第1期33卷 343-355页

作者： GáborÓnodi Zoltán Botta‑Dukát Dániel Winkler Tamás rédei Institute of Ecology and Botany Centre for Ecological ResearchVácrátótHungary Department of Botany and Biodiversity r.s.arch University of ViennaViennaAustria Institute of Wildlife Management and Wildlife Biology University of SopronSopronHungary

The biodiversity of natural or.s.mi-natural native,old oak woodlands have high conservation importance,especially in landscapes of monocultural for.s. plantations and arable *** a wider variety of microhabitats and foraging sources,such old oak for.s.s can provide essential habitat for native for.s. bird *** conducted a study using bird point counts to compare the for.s. bird communities of old pedunculate oak(Quercus robur)remnants with native and non-native plantations in central Hungary in a landscape of mostly arable fields,settlements,and monocultural *** surveys were carried out in old oak for.s. remnants,middle-aged oak,white poplar(Populus alba),hybrid poplar(Populus×euramericana),black locust(robinia pseudoacacia),and pine(Pinus spp.)*** has been carried out in nine study sites,where all six habitat types were repr.s.nted(with a few exceptions),to determine total abundance,species richness,shannon–wiener diversity,species evenness,dominant and indicator.s.ecies,and guild *** found that old oak for.s. remnants were the most diverse habitats among the studied for.s. types,while hybrid poplar and pine plantations exhibited the lowest avian *** avian guilds most sensitive to the loss of old oak for.s. remnants were ground foragers,bark foragers,cavity-nesters,r.s.dents,and Mediterranean migratory *** habitats were more diverse than non-native *** r.s.lts suggest that it is important to conserve all remaining high biodiversity old oak stands and to avoid clear-cutting of monocultural plantations in favour of practices such as mixed-species plantations,longer rotation lengths,or retention for.s.ry.

关键词： For.s. bird community Bird conservation Old oak for.s.-steppe remnant Plantation for.s.ry For.s. conservation Non-native plantation

systemic Analysis of supermarket solid Waste Generation in Mexicali, Mexico

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Journal of Environmental Protection 2010年第2期1卷 105-110页

作者： Aurora Fierro Ochoa Moisés Galindo Duarte Lorenzo A. sánchez Bueno Benjamín Valdez salas Gisela Montero Alpírez Michael schorr wiener 不详

The common practice of managing solid waste (sW) generated by supermarkets in Mexicali, Mexico, consists of mix-ing all kinds of sW without any separation process. The concern of these actions is that does not involve some of these products to be reused or.s.ld for recycling. The company ceases to receive an income of $ 3,881 Mexican pesos as an additional benefit by the generation of approximately 5,869 kg of sW than can be recovered in only one of its eleven branches in the city. However, the only two products that are valued by the supermarkets are wax boxes for fruits and vegetables which are sold to a company that subsequently r.s.ll them to fruit shops for reuse, and the cardboard boxes, whose weekly generation in one branch is 5,375 kg. They are separated from the waxed boxes and placed in a compactor to form bales from 300 to 400 kg each and then are collected for.s.le to a recycling company. As for the generation of different types of plastics that can be recycled, a branch generates weekly 339 kg. The model to simulate the generation of sW in supermarkets was performed using “system dynamics” as a tool for modeling and simulation in order to make better decisions to reduce generation of waste.

关键词： solid Waste supermarket Model system Dynamics

Emergency department rectal temperatur.s.in over 10 years:A retr.s.ective observational study

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World Journal of Emergency Medicine 2013年第2期4卷 107-112页

作者： Graham A.Walker Daniel runde Daniel M.rolston Dan wiener Jarone Lee Department of Emergency Medicine Kaiser PermanenteSan FranciscoUSA Department of Emergency Medicine University of CaliforniaLos AngelesUSA Department of Emergency Medicine St.Luke's-Roosevelt Hospital CenterColumbia University College of Physicians and SurgeonsNew YorkUSA Massachusetts General Hospital Harvard Medical SchoolSouth BostonMA 02127USA

BACKGrOUND:Fever in patients can provide an important clue to the etiology of a patient's ***-invasive temperature sites(oral,axillary,temporal) may be insensitive due to a variety of *** has not been well studied in adult emergency department *** determine whether emergency department triage temperatur.s.detected fever adequately when compared to a rectal ***:A retr.s.ective chart review was made of 27 130 adult patients in a high volume,urban emergency department over an eight-year period who received first a non-rectal triage temperature and then a subsequent rectal ***:The mean difference in temperatur.s.between the initial temperature and the rectal temperature was 1.3 °F(Ps having higher rectal temperatur.s.>2°F,and 5.0%having higher rectal temperatur.s.>4 °*** mean difference among the patients who received oral,axillary,and temporal temperatur.s.was 1.2 °F(PO.001),1.8 °F(PO.001),and 1.2 °F(Ps were initially afebrile and found to be febrile by rectal temperature,with an average difference of 2.5 °F(Pse patients had a higher rate of admission(61.4%,Pre more likely to be admitted to the hospital for a higher level of care,such as an intensive care unit,when compared with the full cohort(12.5%vs.5.8%,PsIONs:There are significant differences between rectal temperatur.s.and noninvasive triage temperatur.s.in this emergency department *** almost one in five patients,fever was missed by triage temperature.

关键词： rectal temperatures Oral temperatures Axillary temperatures Emergency department

Automated Brain Tumor Diagnosis Using Deep r.s.dual U-Net segmentation Model

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Computers, Materials & Continua 2023年第1期74卷 2179-2194页

作者： r.Poonguzhali sultan Ahmad P.Thiruvannamalai sivasankar.s.Anantha Babu Pranav Joshi Gyanendra Pr.s.d Joshi sung Won Kim Department of Computer.s.ience and Engineering Periyar Maniammai Institute of Science and TechnologyThanjavur613403India Department of Computer.s.ience College of Computer Engineering and SciencesPrince Sattam Bin Abdulaziz UniversityAlkharjSaudi Arabia Department of Computer.s.ience and Engineering Jain Deemed to-be UniversityBangalore560069India Department of Neurology Annapurna Neuro HospitalKathmandu44600Nepal Department of Computer.s.ience and Engineering Sejong UniversitySeoul05006Korea Department of Information and Communication Engineering Yeungnam UniversityGyeongsan-siGyeongbuk-do38541Korea

Automated segmentation and classification of biomedical images act as a vital part of the diagnosis of brain tumors(BT).A primary tumor brain analysis suggests a quicker r.s.onse from treatment that utilizes for improving patient survival *** location and classification of BTs from huge medicinal images database,obtained from routine medical tasks with manual processes are a higher cost together in effort and *** automatic recognition,place,and classifier process was desired and *** study introduces anAutomatedDeepr.s.dualU-Net segmentation with Classification model(ADrU-sCM)for Brain Tumor *** pr.s.ntedADr.s.M model majorly focuses on the segmentation and classification of *** accomplish this,the pr.s.nted ADrU-sCM model involves wiener filtering(WF)based preprocessing to eradicate the noise that exists in *** addition,the ADrU-sCM model follows deep r.s.dual U-Net segmentation model to determine the affected brain ***,VGG-19 model is exploited as a feature ***,tunicate swarm optimization(TsO)with gated recurrent unit(GrU)model is applied as a classification model and the TsO algorithm effectually tunes *** performance validation of the ADrU-sCM model was tested utilizing Figshare dataset and the outcomes pointed out the better performance of the ADrU-sCM approach on recent approaches.

关键词： Brain tumor diagnosis image classification biomedical images image segmentation deep learning