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Computation of Unsteady Incompressible Flows Past Oscillating Cylinders

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Computation of Unsteady Incompressible Flows Past Oscillatin...

The 4th International Conference on Computing in Civil and Building Engineering

作者： s.mittal T.E.TEZDUYAR Department of Aerospace Engineering and Mechanics and Minnesota supercomputer Institute The University of MinnesotaMinnesotaUSA. Department of Aerospace Engineering and Mechanics and Minnesota supercomputer Institute The University of MinnesotaMinnesotaUSA.

＜正＞The stabilized space-time finite element formulation of incompressible flows is used to compute the unsteady flow past an oscillating cylinder for two *** the first case the cylinder is oscillating horizontally with a prescribed *** the second case it is oscillating vertically with an unknown motion which needs to be determined as part of the *** both cases an efficient iteration technique is employed to solve the equation system resulting from the space-time finite element discretization of the *** results obtained are in good agreement with experimental observations.

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两步洗脱法FIA-FAAs测定水样中的锌

光谱学与光谱分析 2011年第12期31卷 3384-3387页

作者：王中瑗张宏康方宏达苏耀东 Gauri s.mittal 国家海洋局南海环境监测中心广东广州510300 仲恺农业工程学院轻工食品学院广东广州510225 同济大学化学系上海200092 University of Guelph Guelph Canada

建立了流动注射(FI)在线预富集与火焰原子吸收光谱(FAAs)联用测定水样中痕量锌的两步洗脱新方法。将洗脱和检测分成2个步骤进行。洗脱过程中,洗脱剂不经过蠕动泵管而是依靠蠕动泵的吸力通过聚四氟乙烯管(PTFE tube)进入编结反应器(KR),... 详细信息

建立了流动注射(FI)在线预富集与火焰原子吸收光谱(FAAs)联用测定水样中痕量锌的两步洗脱新方法。将洗脱和检测分成2个步骤进行。洗脱过程中,洗脱剂不经过蠕动泵管而是依靠蠕动泵的吸力通过聚四氟乙烯管(PTFE tube)进入编结反应器(KR),然后送入FAAs进行检测,大大延长了蠕动泵管的使用寿命。同时,洗脱过程依靠蠕动泵的吸力而不是推力实现洗脱剂的输送,明显降低了被分析物在洗脱过程中的分散,提高了原子吸收信号峰值(A)和浓集系数(EF)。增加了样品溶液排空步骤,保证了每次实验的准确性和重复性。进样流速***-1;进样时间60s,测定20μg.L-1的锌,EF由传统方法的9提高到28;检出限为0.35μg.L-1;测样频率为37.h-1;相对标准偏差(RsD,n=11)为2.1%。以0.1‰φ的三乙醇胺为掩蔽剂,在水样中的回收率为98.7%～99.6%。

关键词：流动注射两步洗脱火焰原子吸收编结反应器锌

深度学习模型判读胸片：采用放射科医生判定作为参考标准与人口校正后的评估

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国际医学放射学杂志 2020年第2期 241-242页

作者： A.Majkowska s.mittal D.F.steiner J.J.Reicher s.M.McKinney G.E.Duggan 李璐 Google Health

深度学习有望增加胸片在临床放射学中的应用,但面临的挑战包括推广性差、疾病谱偏倚和研究间的比较困难。目的采用放射科医生的判定作为参考标准,开发和评价

关键词：放射科医生深度学习模型

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妊娠和心脏病

世界医学杂志 2004年第11期8卷 61-61,64页

作者： N.Bhatla s.Lal G.Behera A.Kriplani s.mittal N.Agarwal K.K.Talwar 殷红梅向阳不详 DepartmentofObstetricsandGynecologyandDepartmentofCardiology AllIndiaInstituteofMedical

尽管母体的死亡率在过去20年已经稳步下降，但是心脏病在所有引起母体死亡的原因中所占的比例仍然保持不变。据报道，妊娠并发心脏病发生率大约为0．9％～3．7％。作者回顾性研究了1994～2000年在一个第三世界的保健中心的207例妊娠。... 详细信息

尽管母体的死亡率在过去20年已经稳步下降，但是心脏病在所有引起母体死亡的原因中所占的比例仍然保持不变。据报道，妊娠并发心脏病发生率大约为0．9％～3．7％。作者回顾性研究了1994～2000年在一个第三世界的保健中心的207例妊娠。这些妇女均有心脏病并在28周以后分娩。那些心脏病症状加重或按纽约心脏协会(NYHA)分级已经达Ⅲ／Ⅳ级被要求住院。在临产后开始停止应用肝素治疗。引产仅适用于有产科指征，小心使用催产素。所有的孕妇都进行了支持疗法并间歇性给予氧气吸入，如果有指征给予出口产钳或胎头吸引器缩短第二产程。这些孕妇大多是经产妇年龄18～35岁。88％是并发风湿性心脏病，大多数仅有二尖瓣狭窄。另外24名孕妇并发先天性心脏病。诊断为心脏病到妊娠的时间平均为6．6年，但有13％的病例是在这次妊娠时才被诊断的。1/5的孕妇心功能在初次的产前检查就是NYHA Ⅲ／Ⅳ级。30％孕妇是在此次妊娠才出现心脏病的症状。NYHA分级为Ⅰ／Ⅱ级的孕妇很少有症状，其新生儿的体重也比那些Ⅲ／Ⅳ级的重。在孕37周之前住院率为55％，平均住院日为2周。80％的产妇经阴道分娩。在那些进展性心脏病的孕妇剖宫产率为46％。有20％的新生儿发病率但没有新生儿死亡。61％的风湿性心脏病妇女在妊娠前均进行了必要的心脏干预治疗。在那些实施了心脏瓣膜修补的孕妇母体和胎儿都有较好的结局，她们中的大多数心功能都保持在NYHA Ⅰ/Ⅱ级。有10例孕妇是在妊娠时实施了心脏手术，有1例在生产时发生充血性心力表竭。41例新生儿尽管他们的母亲接受了抗凝治疗但没有一例有先天性畸形。这些结果强调心脏病患者在孕前咨询及保证怀孕期间密切的监督是非常必要的。早期诊断及有指征时行外科手术治疗心脏病变是很重要的。

关键词：风湿性心脏病孕妇妊娠诊断指征心功能母体并发症状分级

MOALG: A Metaheuristic Hybrid of Multi-Objective Ant Lion Optimizer and Genetic Algorithm for solving Design Problems

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Computers, Materials & Continua 2024年第3期78卷 3489-3510页

作者： Rashmi sharma Ashok Pal Nitin mittal Lalit Kumar sreypov Van Yunyoung Nam Mohamed Abouhawwash Department of Mathematics Chandigarh UniversityGharuanMohali140413India Deaprtment of Industry 4.0 Shri Vishwakarma Skill UniversityPalwal121102India Department of ICT Convergence Soonchunhyang UniversityAsan31538Korea Department of Computational Mathematics Science and Engineering(CMSE)College of EngineeringMichigan State UniversityEast LansingMI 48824USA Department of Mathematics Faculty of ScienceMansoura UniversityMansoura35516Egypt

This study proposes a hybridization of two efficient algorithm’s Multi-objective Ant Lion Optimizer Algorithm(MOALO)which is a multi-objective enhanced version of the Ant Lion Optimizer Algorithm(ALO)and the Genetic Algorithm(GA).MOALO version has been employed to address those problems containing many objectives and an archive has been employed for retaining the non-dominated *** uniqueness of the hybrid is that the operators like mutation and crossover of GA are employed in the archive to update the solutions and later those solutions go through the process of MOALO.A first-time hybrid of these algorithms is employed to solve multi-objective *** hybrid algorithm overcomes the limitation of ALO of getting caught in the local optimum and the requirement of more computational effort to converge *** evaluate the hybridized algorithm’s performance,a set of constrained,unconstrained test problems and engineering design problems were employed and compared with five well-known computational algorithms-MOALO,Multi-objective Crystal structure Algorithm(MOCrystAl),Multi-objective Particle swarm Optimization(MOPsO),Multi-objective Multiverse Optimization Algorithm(MOMVO),Multi-objective salp swarm Algorithm(MssA).The outcomes of five performance metrics are statistically analyzed and the most efficient Pareto fronts comparison has been *** proposed hybrid surpasses MOALO based on the results of hypervolume(HV),spread,and *** primary objective of developing this hybrid approach has been achieved *** proposed approach demonstrates superior performance on the test functions,showcasing robust convergence and comprehensive coverage that surpasses other existing algorithms.

关键词： Multi-objective optimization genetic algorithm ant lion optimizer metaheuristic

Deep Learning-Based Mask Identification system Using ResNet Transfer Learning Architecture

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Computer systems science & Engineering 2024年第2期48卷 341-362页

作者： Arpit Jain Nageswara Rao Moparthi A.swathi Yogesh Kumar sharma Nitin mittal Ahmed Alhussen Zamil s.Alzamil MohdAnul Haq Department of Computer science and Engineering KoneruLakshmaiah Education FoundationVaddeswaram522302India Department of Computer science and Engineering Sreyas Institute of Engineering and TechnologyHyderabad500068India University Centre for Research and Development Chandigarh UniversityMohali140413India Department of Computer Engineering College of Computer and Information SciencesMajmaah UniversityAl-Majmaah11952Saudi Arabia Department of Computer science College of Computer and Information SciencesMajmaah UniversityAl-Majmaah11952Saudi Arabia

Recently,the coronavirus disease 2019 has shown excellent attention in the global community regarding health and the *** Health Organization(WHO)and many others advised controlling Corona Virus Disease in *** limited treatment resources,medical resources,and unawareness of immunity is an essential horizon to *** all resources,wearing a mask is the primary non-pharmaceutical intervention to stop the spreading of the virus caused by severe Acute Respiratory syndrome Coronavirus 2(sARs-CoV-2)*** countries made masks mandatory to prevent *** such enforcement,automatic and effective face detection systems are *** study presents a face mask identification approach for static photos and real-time movies that distinguishes between images with and without *** contribute to society,we worked on mask detection of an individual to adhere to the rule and provide awareness to the public or *** paper aims to get detection accuracy using transfer learning from Residual Neural Network 50(ResNet-50)architecture and works on detection *** experiment is tested with other popular pre-trained models such as Deep Convolutional Neural Networks(AlexNet),Residual Neural Networks(ResNet),and Visual Geometry Group Networks(VGG-Net)advanced *** proposed system generates an accuracy of 98.4%when modeled using Residual Neural Network 50(ResNet-50).Also,the precision and recall values are proved as better when compared to the existing *** outstanding work also can be used in video surveillance applications.

关键词： Transfer learning depth analysis convolutional neural networks(CNN) COVID-19

Detection and clearance in Alzheimer’s disease: leading with illusive chemical, structural and morphological features of the targets

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Neural Regeneration Research 2024年第3期19卷 497-498页

作者： Luís Gales i3s−Instituto de Investigação e Inovação em saúde Rua Alfredo AllenPortoPortugal(Gales L)IBMC−Instituto de Biologia Molecular e CelularUniversidade do PortoRua Alfredo AllenPortoPortugal ICBAs−Instituto de Ciências Biomédicas Abel salazar Rua de Jorge Viterbo FerreiraPortoPortugal

Highly specific interactions between biomolecules,such as antigen-antibody,protein-ligand,or nucleic acid base pair complementary are on the basis of the organization of complex *** same principles may be tentatively used in molecular medicine for diagnosis and therapeutics.A molecule can be designed to selectively bind a protease and thereby inhibit the production of a peptide that forms toxic aggregates in the brain or an antibody may be produced to bind specifically to that peptide for detection or clearance ***,interference in biological systems is not that *** a start there is the inhibition of the physiological role of the protease;moreover,several cleavage fragments may be produced,which may continue to diverge due to putative post-translational modification and self-assembly processes,hiding the toxic target in a“soup”of peptide species varying in size,structure and chemical composition.A perspective of the current status and challenges in targeting peptide species for diagnosis and treatment in the context of Alzheimer’s disease is given.

关键词： Alzheimer diagnosis thereby

sclerosing Mucoepidermoid Cancer: A Unique Entity

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Open Journal of Endocrine and Metabolic Diseases 2024年第5期14卷 107-114页

作者： Ashima mittal Christina Dimech Farhad Hasan Gayatri Jaiswal Division of Endocrinology Allegheny Health Network Pittsburgh Pennsylvania USA

sclerosing mucoepidermoid thyroid cancer (sMECE) is a rare entity with less than 100 cases reported in the literature. Previously considered to have an indolent course, however, recent evidence has reported an aggressive nature ranging from local invasion to distant metastasis. We present a 66-year-old Caucasian female with sMECE who initially presented neck compressive symptoms. A thyroid ultrasound (Us) revealed a solid hypoechoic mass replacing the left thyroid lobe. Fine needle aspiration cytology (FNAC) of the nodule resulted in suspicion of Papillary Thyroid Cancer, Bethesda category 5. The patient underwent total thyroidectomy and surgical pathology showed sMECE. Post-therapy whole-body scan following treatment with 150 mCi I-131 showed no residual or metastatic disease. sMECE is more common in females, between the third to eighth decade of life. Preoperative diagnosis may not be accurate given variable cytopathologic features. Differential diagnoses include primary squamous cell carcinoma of the thyroid, squamous differentiation of other thyroid malignancies, anaplastic thyroid cancer and nodular sclerosing variety of Hodgkin’s lymphoma. Due to its rarity, treatment of sMECE has ranged from thyroid surgery without or with radioactive iodine therapy, to surgery and external beam radiation and even chemotherapy.

关键词： sclerosing Mucoepidermoid Cancer Papillary Thyroid Cancer Thyroid Cancer

Astrophysical s-factor and reaction rate for 15N(p,γ)16O within the modified potential cluster model

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Chinese Physics C 2024年第4期48卷 130-145页

作者： s.B.Dubovichenko A.s.Tkachenko R.Ya.Kezerashvili N.A.Burkova B.M.Yeleusheva Fesenkov Astrophysical Institute 050020 AlmatyKazakhstan New York City College of Technology City University of New YorkBrooklyn11201 New YorkUSA Graduate school and University Center City University of New York10016 New YorkUSA al-Farabi Kazakh National University 050040 AlmatyKazakhstan

We study radiative p^(15)N capture on the ground state of ^(16)O at stellar energies within the framework of a modified potential cluster model(MPCM)with forbidden states,including low-lying *** investigation of the ^(15)N(p,γ0)^(16)O reaction includes the consideration of ^(3)s_(1) resonances due to E1 transitions and the contribution of the ^(3)P_(1) scattering wave in the p+^(15)N channel due to the ^(3)P_(1)→^(3)P_(0)M1 *** calculated the astrophysical low-energy s-factor,and the extrapolated s(0)turned out to be within 34.7−40.4 keV·*** important role of the asymptotic constant(AC)for the ^(15)N(p,γ0)16O process with interfering ^(3)s_(1)(312)and ^(3)s_(1)(962)resonances is elucidated.A comparison of our calculation for the s-factor with existing experimental and theoretical data is addressed,and a reasonable agreement is *** reaction rate is calculated and compared with the existing *** has negligible dependence on the variation of AC but shows a strong impact of the interference of ^(3)s_(1)(312)and ^(3)s_(1)(962)resonances in reference to the CNO Gamow windows,especially at low *** estimate the contribution of cascade transitions to the reaction rate based on the exclusive experimental data from ***.C.85,065810(2012).The reaction rate enhancement due to the cascade transitions is observed from T_(9)>0.3 and reaches the maximum factor~1.3 at T_(9)=*** present the Gamow energy window and a comparison of rates for radiative proton capture reactions ^(12)N(p,γ)^(13)O,^(13)N(p,γ)^(14)O,^(14)N(p,γ)^(15)O,and ^(15)N(p,γ)^(16)O obtained in the framework of the MPCM and provide the temperature windows,prevalence,and significance of each process.

关键词： low and astrophysical energies p^(15)N system thermonuclear reaction rate potential cluster model CNO-cycle