检索结果-南通市图书馆

Electrospun Aloe Vera Extract Loaded Polycaprolactone Scaffold for Biomedical Applications:A Promising Candidate for Corneal Stromal Regeneration

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Bionic Engineering 2024年第4期21卷 1949-1959页

作者： Amin Orash Mahmoud salehi Mohammad Rafienia Narsimha Mamidi Saeed Heidari Keshel Alireza Baradaran-Rafii Department of Chemistry and Nanotechnology School of Engineering and ScienceTecnologico de MonterreyMonterreyNuevo Leon64849Mexico Biosensor Research Center Isfahan University of Medical SciencesIsfahan81746-73461Iran Wisconsin Center for NanoBioSystems School of PharmacyUniversity of Wisconsin-MadisonMadisonWisconsin53705USA Medical Nanotechnology Research Center Shahid Beheshti University of Medical SciencesTehran19857-17443Iran Department of Ophthalmology Ophthalmic Research CenterLabbafinejad Medical CenterShahid Beheshti University of Medical SciencesTehran19395-4631Iran Department of Ophthalmology Morsani College of MedicineUniversity of South FloridaTampaFL33612USA Department of Tissue Engineering and Applied Cell Science School of Advanced Technologies in MedicineShahid Beheshti University of Medical SciencesTehran19857-17443Iran

Corneal diseases,the second leading cause of global vision loss affecting over 10.5 million people,underscores the unmet demand for corneal tissue *** the scarcity of fresh donor corneas and the associated risks of immune rejection,corneal tissue engineering becomes *** nanofibrous scaffolds that mimic the natural corneal structure is crucial for creating transparent and mechanically robust corneal equivalents in tissue ***,Aloe Vera Extract(AVE)/Polycaprolactone(PCL)nanofibrous scaffolds were primed using *** electrospun AVE/PCL fibers exhibit a smooth,bead-free morphology with a mean diameter of approximately 340±95 nm and appropriate light *** measurements reveal Young’s modulus and ultimate tensile strength values of around 3.34 MPa and 4.58 MPa,respectively,within the range of stromal *** addition,cell viability of AVE/PCL fibers was measured against Human Stromal Keratocyte Cells(HSKCs),and improved cell viability was *** cell-fiber interactions were investigated using scanning electron *** conclusion,the incorporation of Aloe Vera Extract enhances the mechanical,optical,hydrophilic,and biological properties of PCL fibers,positioning PCL/AVE fiber scaffolds as promising candidates for corneal stromal regeneration.

关键词： Corneal stromal regeneration Aloe vera extract Polycaprolactone Electrospinning

Platform Evolution in an Oligo-Miocene Back-arc Basin:An Example from the Central Iran Basin

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 2024年第1期98卷 185-206页

作者： Masoud SHARIFI-YAZDI Amirhossein ENAYATI Jamal salehi AGHDAM Mohammad BAHREHVAR Seyed Mustafa REZAEI Department of Geology Faculty of Earth SciencesGeography and AstronomyUniversity of Vienna1090 Vienna.Austria Geology and Geophysics Department Tehran Energy Consultants(TEC Co.)TehranIran School of Geology College of ScienceUniversity of TehranTehranIran Department of Geology Tarbiat Modares UniversityTehranIran

The Qom Formation is the most important hydrocarbon reservoir target in Central *** Qom platform developed in a back-arc basin during the Oligo-Miocene due to the closing of the Tethyan *** formation consists of a variety of carbonate and non-carbonate facies deposited on a platform ranging from supratidal to basin.A combination of tectonic and eustatic events led to some lateral and vertical facies variations in the study *** third-order depositional sequences and related surfaces were identified regarding vertical facies changes in the studied sections of this Oligo-Miocene *** to all results and data,this succession was initially deposited during the Chattian upon a distally steepened ramp of siliciclastic-carbonate composition,including the Bouma ***,from the late Chattian to the Aquitanian,the platform changed into a homoclinal carbonate ramp with a gentle *** respect to tectonic activity,this phase was a calm period during the deposition of the Qom ***,a drowned carbonate platform and a rimmed shelf emerged during the Burdigalian,terminated by the continental deposits of the Upper Red *** all geological characteristics,three main tectono-eustatic evolutionary phases have been recognized in the Qom back-arcbasin.

关键词： carbonate ramp depositional facies submarine fan eustasy basement faults back-arc basin

维普期刊数据库

Enhancing Hyper-Spectral Image Classification with Reinforcement Learning and Advanced Multi-Objective Binary Grey Wolf Optimization

在线全文

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2024年第6期79卷 3469-3493页

作者： Mehrdad Shoeibi Mohammad Mehdi Sharifi Nevisi Reza salehi Diego Martín Zahra Halimi Sahba Baniasadi TheWPI Business School Worcester Polytechnic InstituteWorcesterMassachusetts01609-2280USA Department of Industrial Engineering Iran University of Science and TechnologyNarmakTehran16846-13114Iran ETSI de Telecomunicación Universidad Politécnica de MadridAv.Complutense 30Madrid28040Spain Department of Civil and Environmental Engineering University of MarylandCollege ParkMaryland20742USA Department of Industrial Engineering College of EngineeringUniversity of HoustonHoustonTexas77204USA

Hyperspectral(HS)image classification plays a crucial role in numerous areas including remote sensing(RS),agriculture,and the monitoring of the *** band selection in HS images is crucial for improving the efficiency and accuracy of image *** process involves selecting the most informative spectral bands,which leads to a reduction in data *** on these key bands also enhances the accuracy of classification algorithms,as redundant or irrelevant bands,which can introduce noise and lower model performance,are *** this paper,we propose an approach for HS image classification using deep Q learning(DQL)and a novel multi-objective binary grey wolf optimizer(MOBGWO).We investigate the MOBGWO for optimal band selection to further enhance the accuracy of HS image *** the suggested MOBGWO,a new sigmoid function is introduced as a transfer function to modify the wolves’*** primary objective of this classification is to reduce the number of bands while maximizing classification *** evaluate the effectiveness of our approach,we conducted experiments on publicly available HS image datasets,including Pavia University,Washington Mall,and Indian Pines *** compared the performance of our proposed method with several state-of-the-art deep learning(DL)and machine learning(ML)algorithms,including long short-term memory(LSTM),deep neural network(DNN),recurrent neural network(RNN),support vector machine(SVM),and random forest(RF).Our experimental results demonstrate that the Hybrid MOBGWO-DQL significantly improves classification accuracy compared to traditional optimization and DL ***-DQL shows greater accuracy in classifying most categories in both datasets *** the Indian Pine dataset,the MOBGWO-DQL architecture achieved a kappa coefficient(KC)of 97.68%and an overall accuracy(OA)of 94.32%.This was accompanied by the lowest root mean square error(RMSE)of 0.94,indicating very precise

关键词： Hyperspectral image classification reinforcement learning multi-objective binary grey wolf optimizer band selection

A Deep Reinforcement Learning-Based Technique for Optimal Power Allocation in Multiple Access Communications

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Intelligent Automation & Soft Computing 2024年第1期39卷 93-108页

作者： Sepehr Soltani Ehsan Ghafourian Reza salehi Diego Martín Milad Vahidi Department of Industrial Engineering College of EngineeringUniversity of HoustonHoustonTX77204USA Department of Computer Science Iowa State UniversityAmesIowaUSA ETSI de Telecomunicación Universidad Politécnica de MadridMadridSpain Faculty of School of Plant and Environmental Sciences Virginia Polytechnic Institute and StateUniversityBlacksburgVirginia24060USA

Formany years,researchers have explored power allocation(PA)algorithms driven bymodels in wireless networks where multiple-user communications with interference are ***,data-driven machine learning methods have become quite popular in analyzing wireless communication systems,which among them deep reinforcement learning(DRL)has a significant role in solving optimization issues under certain *** this purpose,in this paper,we investigate the PA problem in a k-user multiple access channels(MAC),where k transmitters(e.g.,mobile users)aim to send an independent message to a common receiver(e.g.,base station)through wireless *** this end,we first train the deep Q network(DQN)with a deep Q learning(DQL)algorithm over the simulation environment,utilizing offline ***,the DQN will be used with the real data in the online training method for the PA issue by maximizing the sumrate subjected to the source ***,the simulation results indicate that our proposedDQNmethod provides better performance in terms of the sumrate compared with the available DQL training approaches such as fractional programming(FP)and weighted minimum mean squared error(WMMSE).Additionally,by considering different user densities,we show that our proposed DQN outperforms benchmark algorithms,thereby,a good generalization ability is verified over wireless multi-user communication systems.

关键词： Deep reinforcement learning deep Q learning multiple access channel power allocation

Advancements in Fixed Point Theorems for α-Geraghty Contractions in Complete Metric Space

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Mathematical Research with Applications 2024年第5期 697-710页

作者： V.C.BORKAR Mohammed M.A.TALEB Saeed A.A.AL-salehi School of Mathematical at Yeshwant Mahavidyalaya Swami Ramanand Teerth Marathwada University School of Mathematical at Science College Swami Ramanand Teerth Marathwada University Department of Mathematics Hodeidah University Department of Mathematics Aden University

This article improves and advances the results achieved by Vishal and Naveen, leveraging the use of Lebesgue integrable functions. Going beyond, we investigate fixed point theorems associated with a concept introduced by Ovidiu Popescu. Our research not only bolsters the theoretical framework but also unveils practical applications in the domain of Lebesgue integrals as in Example 3.6. Furthermore, our contribution enhances the understanding of fixed point theorems in metric spaces and introduces novel perspectives in the study of generalized α-Geraghty contractive mappings on Lebesgue integrals.

关键词：

Long-term follow-up of intravesical abobotulinumtoxinA (Dysport®) injections in women with idiopathic detrusor overactivity

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Asian Journal of Urology 2024年第1期11卷 93-98页

作者： Mohammad Sajjad Rahnama'i Amin Bagheri Elham Jahantabi Hanieh salehi-Pourmehr Hadi Mostafaei Brigitte Schurch Aida Javan Balegh Marand Sakineh Hajebrahimi Department of Urology St.Elisabeth-Tweesteden Hospital Tilburgthe Netherlands Research Center for Evidence-based Medicine Iranian EBM Centre:A Joanna Briggs Institute(JBI)Center of ExcellenceTabriz University of Medical SciencesTabrizIran Urology Department Faculty of MedicineTabriz University of Medical SciencesTabrizIran Department of Urology Comprehensive Cancer CenterMedical University of ViennaViennaAustria Service de Neuroréhabilitation CHUVLausanneSwitzerland Society of Urological Research and Education(SURE) Heerlenthe Netherlands

Objective:Only a few numbers of studies have been published on the use of abobotulinumtoxinA(Dysport®)in idiopathic detrusor overactivity(IDO).This study reported the long-term follow-up of women with IDO who were treated with intravesical Dysport®***:Two hundred and thirty-six patients with IDO who had failed first-line conservative and antimuscarinic therapy received 500-900 units of Dysport®between April 2014 and July *** patients were followed up for 5 years after their initial injection and interviewed on the ***:A total of 236 women with IDO aged from 18 years to 84 years(mean±standard deviation:49.6±15.9 years)were included in our *** median follow-up time for patients was 36.5(range:10-70)months,and the median recovery time after injection was 18.5(range:0-70)months.A total of 83(35.2%)patients stated that they had subjective improvement of their symptoms whereas 84(35.6%)patients did not report any improvement in *** initial International Consultation on Incontinence Questionnaire Overactive Bladder mean score was 6.9(standard deviation 3.4).There was a positive association between the median recovery time and the components of the International Consultation on Incontinence Questionnaire Overactive Bladder ***:In a sub-population of overactive bladder patients with IDO who have failed first-line therapy,a single intravesical Dysport®injection can resolve patient symptoms completely or reduce the symptoms to an acceptable level that can be controlled with antimuscarinics or re-injection on demands.

关键词： AbobotulinumtoxinA Dysport Intravesical ldiopathic Detrusor overactivity

给水厂砂滤池反冲洗水直接回用对出厂水水质影响及其风险评价

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

环境科学学报 2024年第5期44卷 128-137页

作者：张锋蒋才芳刘敏梁虹许谦蒋菱董慧峪 Ali Mashayekh-salehi 谢婷刘绍刚广西民族大学化学化工学院林产化学与工程国家民委重点实验室广西林产化学与工程重点实验室广西林产化学与工程协同创新中心南宁530008 中国科学院生态环境研究中心中国科学院饮用水科学与技术重点实验室北京100085 广西绿城水务股份有限公司南宁530031

给水厂的生产废水的回用安全性,备受水务行业关注.本研究以邕江原水和砂滤池反冲洗废水为对象,对某给水厂沿程各单元出水的一般性和毒理学水质指标进行长周期监测,例如浊度、UV_(254)、氨氮(NH_(4)^(+)-N)、高锰酸盐指数(COD_(Mn))、农... 详细信息

给水厂的生产废水的回用安全性,备受水务行业关注.本研究以邕江原水和砂滤池反冲洗废水为对象,对某给水厂沿程各单元出水的一般性和毒理学水质指标进行长周期监测,例如浊度、UV_(254)、氨氮(NH_(4)^(+)-N)、高锰酸盐指数(COD_(Mn))、农药、抗生素等微污染物,探讨砂滤池反冲洗水直接回用对给水厂水质的影响.结果显示,给水厂砂滤池反冲洗水中浊度、氨氮、DOC和COD_(Mn)普遍高于原水,且冬季较高其他季节;UV_(254)、SO_(4)^(2-)、NO_(3)^(-)、Pb、Cu等指标与出厂水相差不大,反冲洗水直接回用对出厂水水质影响不大.各处理单元出水中检出33种农药和4种抗生素,其含量远低于《生活饮用水卫生标准》(GB 5749-2022)限值,但唑醚菌胺、磺胺二甲异嘧啶、诺氟沙星和环丙沙星稍高于原水.荧光光谱分析表明,各处理单元出水的溶解性有机质(DOM)的主要组分为类腐殖质物质和类蛋白质物质,水处理工艺对芳香蛋白类及溶解性微生物代谢产物有一定去除作用.砂滤池反冲洗水中富集较多铝(Al),浓度达到0.18 mg·L^(-1),回用时需加以关注.健康风险评价模型结果显示出厂水中残余铝的个人健康年风险最大值为5.34×10^(-7),低于最大可接受年风险水平10^(-6).

关键词：反冲洗水废水回用水质分析长周期监测健康风险评估

维普期刊数据库

同方期刊数据库

Macroalgal deep genomics illuminate multiple paths to aquatic,photosynthetic multicellularity

在线全文

学校读者我要写书评

暂无评论

Molecular Plant 2024年第5期17卷 747-771页

作者： David R.Nelson Alexandra Mystikou Ashish Jaiswal Cecilia Rad-Menendez Michael J.Preston Frederik De Boever Diana C.El Assal Sarah Daakour Michael W.Lomas Jean-Claude Twizere David H.Green William C.Ratcliff Kourosh salehi-Ashtiani Division of Science and Math New York University Abu DhabiAbu DhabiUAE Center for Genomics and Systems Biology(CGSB) New York University Abu DhabiAbu DhabiUAE Biotechnology Research Center Technology Innovation InstitutePO Box 9639Masdar CityAbu DhabiUAE Culture Collection of Algae and Protozoa Scottish Association for Marine ScienceObanScotlandUK National Center for Marine Algae and Microbiota Bigelow Laboratory for Ocean SciencesEast BoothbayMEUSA Laboratory of Viral Interactomes GIGA InstituteUniversity of LiegeLiegeBelgium School of Biological Sciences Georgia Institute of TechnologyAtlantaGAUSA

Macroalgae are multicellular,aquatic autotrophs that play vital roles in global climate maintenance and have diverse applications in biotechnology and eco-engineering,which are directly linked to their multicellularity ***,their genomic diversity and the evolutionary mechanisms underlying multicellularity in these organisms remain *** this study,we sequenced 110 macroalgal genomes from diverse climates and phyla,and identified key genomic features that distinguish them from their microalgal *** for cell adhesion,extracellular matrix formation,cell polarity,transport,and cell differentiation distinguish macroalgae from microalgae across all three major phyla,constituting conserved and unique gene sets supporting multicellular *** genes show phylum-and climate-specific expansions that may facilitate niche ***,our study reveals genetic determinants of convergent and divergent evolutionary trajectories that have shaped morphological diversity in macroalgae and provides genome-wide frameworks to understand photosynthetic multicellular evolution in aquatic environments.

关键词： macroalgae multicellularity comparative genomics evolution adhesome endogenous viral elements

水中亚硒酸盐的氧化效能研究:氧化剂、动力学与影响因素

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

环境科学学报 2024年

作者：吕金容 Ali Mashayekh-salehi 蒋才芳朱倩颖梁钟月张馨怡韦富存董慧峪谢婷刘绍刚广西民族大学化学化工学院林产化学与工程国家民委重点实验室广西林产化学与工程重点实验室广西林产化学与工程协同创新中心广西绿城水务股份有限公司中国科学院生态环境研究中心中国科学院饮用水科学与技术重点实验室

硒元素的多种价态中,亚硒酸盐(Se（Ⅳ）)毒性较高.本文对比研究了水中Se（Ⅳ）在自由氯（HOCl）、臭氧（O3）、高铁酸钾(Fe（Ⅵ）)和高锰酸钾(Mn（Ⅶ）)4种氧化剂作用下的氧化动力学以及其工艺因素(氧化剂投加量、pH值、天然有机物（NO... 详细信息

硒元素的多种价态中,亚硒酸盐(Se（Ⅳ）)毒性较高.本文对比研究了水中Se（Ⅳ）在自由氯（HOCl）、臭氧（O3）、高铁酸钾(Fe（Ⅵ）)和高锰酸钾(Mn（Ⅶ）)4种氧化剂作用下的氧化动力学以及其工艺因素(氧化剂投加量、pH值、天然有机物（NOM）、离子强度、共存离子)对其氧化效能的影响.结果表明,Se（Ⅳ）的氧化率随着氧化剂投加量增大而提升.在中性条件下,HOCl和Fe（Ⅵ）对Se（Ⅳ）氧化效果最好,氧化率分别为90.0%和70.0%,O3和Mn（Ⅶ）分别在碱性和酸性条件下对Se（Ⅳ）具有最佳氧化效能.NOM可抑制4种氧化剂对Se（Ⅳ）的氧化,而离子强度促进了HOCl、Fe（Ⅵ）和Mn（Ⅶ）氧化.Br-的存在促进了HOCl和O3氧化Se（Ⅳ）,而对Fe（Ⅵ）和Mn（Ⅶ）氧化无明显影响;SO42-、NO3-、Ca2+、Mg2+促进了O3和Fe（Ⅵ）氧化Se（Ⅳ）但抑制Mn（Ⅶ）氧化,其中Ca2+的抑制作用最大.此外,选取地表水、地下水和湖库水为水源水进行不同氧化剂对Se（Ⅳ）氧化效能的验证评价,研究结果可为含硒水体在氧化过程中的环境行为与毒性控制提供理论依据.

关键词：饮用水处理亚硒酸盐氧化动力学天然有机物共存离子