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Early-Stage Cervical Cancerous Cell Detection from Cervix Images Using YOLOv5

Computers, Materials & Continua 2023年第2期74卷 3727-3741页

作者： Md Zahid Hasan Ontor Md Mamun Ali Kawsar Ahmed Francis M.Bui Fahad Ahmed Al-Zahrani S.M.Hasan Mahmud Sami azam Department of Software Engineering(SWE) Daffodil International University(DIU)SukrabadDhaka1207Bangladesh Group of Biophotomatiχ Department of Information and Communication TechnologyMawlana Bhashani Science and Technology UniversitySantoshTangail1902Bangladesh Department of Electrical and Computer Engineering University of Saskatchewan57 Campus DriveSaskatoonS7N5A9SKCanada Computer Engineering Department Umm Al-Qura UniversityMecca24381Saudi Arabia Department of Computer Science American International University-Bangladesh(AIUB)KuratoliDhaka1229Bangladesh College of Engineering IT and EnvironmentCharles Darwin UniversityCasuarina0909NTAustralia

Cervical Cancer(CC)is a rapidly growing disease among women throughout the world,especially in developed and developing *** this many women have ***,it is curable if it can be diagnosed and detected at an early stage and taken proper *** the high cost,awareness,highly equipped diagnosis environment,and availability of screening tests is a major barrier to participating in screening or clinical test diagnoses to detect CC at an early *** solve this issue,the study focuses on building a deep learning-based automated system to diagnose CC in the early stage using cervix cell *** system is designed using the YOLOv5(You Only Look Once Version 5)model,which is a deep learning *** build the model,cervical cancer pap-smear test image datasets were collected from an open-source repository and these were labeled and *** the YOLOv5 models were applied to the labeled dataset to train the *** versions of the YOLOv5 model were applied in this study to find the best fit model for building the automated system to diagnose CC at an early *** of the model’s variations performed *** model can effectively detect cervical cancerous cell,according to the findings of the *** the medical field,our study will be quite *** can be a good option for radiologists and help them make the best selections possible.

关键词： Cervical cancer pap-smear deep learning cancerous cell YOLOv5 model

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CuO/SnO2和FeSe2/TiO2纳米复合材料的光催化降解和电化学储能性能研究

CuO/SnO2和FeSe2/TiO2纳米复合材料的光催化降解和电化学储能性能...

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作者： azam Khan 北京化工大学

学位级别：硕士

能源危机和环境污染是当今世界面临的两大问题。合成染料造成的污染更受关注,因为与其他污染物处理相比,从水中去除染料比较困难,迄今为止,各种传统技术如吸附、沉淀和混凝用于水处理。近年来,非均相光催化因其高效、低成本和广泛的应... 详细信息

能源危机和环境污染是当今世界面临的两大问题。合成染料造成的污染更受关注,因为与其他污染物处理相比,从水中去除染料比较困难,迄今为止,各种传统技术如吸附、沉淀和混凝用于水处理。近年来,非均相光催化因其高效、低成本和广泛的应用而备受关注。光催化剂在光照时,电子从价带VB跃迁到导带CB,可以发生光氧化还原反应。光生电子迁移到催化剂表面,与O和HO反应生成强氧化性的自由基,可以降解染料。另一方面,人口过多和能源枯竭造成了能源危机。与不可再生能源相比,可再生能源具有显著优势。储能系统通过存储产生的能量供后续使用,为解决能源问题做出了贡献,其中电池、电容器和超级电容器的研究是这些储能技术的最前沿。目前已有大量关于光催化染料降解和电化学储能特性的研究报道,包括各种过渡金属氧化物、硒化物,如Ti O、Sn O、Zn O、Cd S、Fe Se、g-CN、Bi VO和LDH等,其中Ti O、Cu O、Sn O和Fe Se在单一和复合材料中均表现出优异的活性。Sn O和Cu O由于具有丰富的来源、高表面积以及容易与其他半导体材料形成异质结的优点,被认为是Ti O的良好替代品。本文的第一部分研究包括合成的Cu O/Sn O纳米复合材料用于染料降解和电化学储能应用的研究。本文制备了三种不同比例的Cu O/Sn O纳米复合材料,显示出对亚甲基蓝的高效降解活性。与纯Sn O和Cu O相比,Cu O在Sn O（AT-1）上的负载量较低,显示出更高的光催化降解活性。CV分析揭示了在水性介质的电位窗口中从0.0到0.7 V的赝电容电荷存储机制。通过研究所有电极的电容性能发现,AT-1电极在1/10 A/g时获得了260/155F/g的高电容,表明其具有良好的倍率性能。本文的第二部分研究中,通过溶剂热原位/异位溶胶-凝胶法制备了具有不同比例的Fe Se/Ti O纳米复合材料,用于高效降解Rh B和超级电容器应用。研究结果表明,Fe Se/Ti O复合材料增加了光吸收,协同增强了载流子的分离和氧化还原活性。光催化活性分析表明,FT-1样品仅需60分钟即可去除Rh B染料（FT-2、Fe Se和Ti O=90、100和180分钟）,并且经过数次使用后仍具有良好的稳定性（不低于98%）。作为超级电容器电极材料,所有电极在其CV环路和充电/放电曲线中均显示出明确的峰值和电压平台,说明了存在赝电容电荷存储机制。295（FT-1）比其他电极（Fe Se、Ti O和FT-2=210、115和240 F/g）在1 A/g时的电容更高,在10 A/g时达到180,从而提高了82%的倍率能力。高倍率能力是其具有更低电荷转移阻力的原因,从而导致复合催化剂具有更高的电导率并促进快速的电荷传输.

关键词：光催化染料降解超级电容器 CuO SnO2 FeSe2 TiO2 纳米粒子的合成与表征

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Effects of salt and nitrogen on physiological indices and carbon isotope discrimination of wheat cultivars in the northeast of Iran

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Journal of Integrative Agriculture 2020年第3期19卷 656-667页

作者： azam BORZOUEI MirAhmad MOUSAVI SHALMANI Ali ESKANDARI Nuclear Agriculture Research School Nuclear Science and Technology Research Institute(NSTRI)

In order to study the effects of different levels of salt stress and nitrogen(N) on physiological mechanisms,carbon isotope discrimination(△13C),and yield of two wheat cultivars(cv.),a two-year field experiment was carried out during *** treatments included three levels of salt stress(1.3,5.2,and 10.5 dS m^-1),three levels of N(50,100,and 150 kg N ha-1),and two wheat cultivars,Bam and *** salt stress,N application(100 and 150 kg N ha^-1) produced a significant effect on both cultivars with respect to physiological traits,i.e.,net photosynthetic rate(Pn),stomatal conductance(gs),chlorophyll index(Cl),Na^+/K^+ ratio as well as the grain yield(GY).The salt-tolerant and-sensitive cultivars exhibited the maximum values of physio-biochemical and yield attributes at 100 and 150 kg N ha-1,*** results of △13C showed a significant difference(P<0.001) between wheat cultivars under the control and salt *** to our result,salt-tolerant cultivar Bam seems to be more efficient in terms of higher GY,Pn,gs,Cl,and lower Na^+/K^+ ratio as well as higher △13C as compared with salt-sensitive cultivar Toos,under salt ***,a significant positive correlation that observed between △13C and GY,indicated that △13C may be an effective index for indirect selection of yield potential in wheat under irrigation regimes with saline water.

关键词： net photosynthetic rate stomatal conductance chlorophyll index carbon isotope discrimination

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Petrogenesis of Volcanic Rocks in the Khabr-Marvast Tectonized Ophiolite:Evidence for Subduction Processes in the South-Western Margin of Central Iranian Microcontinent

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Acta Geologica Sinica(English Edition) 2009年第5期83卷 884-892页

作者： azam SOLTANMOHAMMADI Mohammad RAHGOSHAY Morteza KHALATBARI-JAFARI Faculty of Earth Sciences Shahid Beheshti University TehranIran Institute for Earth Sciences Geological Survey of IranTehranIran

The Late Cretaceous Khabr-Marvast tectonized ophiolite is located in the middle part of the Nain-Baft ophiolite belt, at the south-western edge of the central Iranian microcontinent. Although all the volcanic rocks in the study area indicate subduction-related magmatism （e.g. high LILE （large ion lithophile elements） / HFSE （high field strenght elements） ratios and negative anomalies in Nb and Ta）, geological and geochemical data clearly distinguish two distinct groups of volcanic rocks in the tectonized association：（1） group 1 is comprised of hyaloclastic breccias, basaltic pillow lavas, and andesite sheet flows. These rocks represent the Nain-Baft oceanic crust; and （2） group 2 is alkaline lavas from the top section of the ophiolite suite. These lavas show shoshonite affinity, but do not support the propensity of ophiolite.

关键词： alkaline lavas subduction-related magmatism tectonized ophiolite central Iranian microcontinent

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Fatty Acid Composition of Tobacco Seed Oil and Synthesis of Alkyd Resin

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Chinese Journal of Chemistry 2007年第5期25卷 705-708页

作者： MUKHTAR, azam ULLAH, Habib MUKHTAR, Hamid Department of Chemistry University of Education Lahore Institute of Chemistry University of the Punjab Lahore 54600 Pakistan Institute of Industrial Biotechnology G C. University Lahore 54000 Pakistan

The fatty acid composition of tobacco seed oil revealed that the oil is rich in unsaturated fatty acids, having linoleic acid （71.63%）, oleic acid （13.46%） and palmitic acid （8.72%） as the most abundant unsaturated and saturated fatty acids respectively. So the tobacco oil was characterized as semi-drying type on the basis of fatty acid composition. The synthesis of alkyd resin was carried out by alcoholysis or monoglyceride process using an alkali refined tobacco seed oil, pentaerythritol, cis-1,2,3,6-tetrahydrophthalic anhydride along with lithium hydroxide as catalyst. The alkyd resin so prepared was found to be bright and of low color with high gloss. The drying and hardness properties and adhesion of the tobacco seed oil derived alkyd resin were also found a bit superior to those of other alkyd resins of the same oil length. In addition, the water and acid resistance of the said alkyd was also found comparable to the other alkyds.

关键词： tobacco oil alkyd fatty acid linoleic acid gloss and adhesion

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SYNTHESIS, CHARACTERIZATION AND BIOLOGICAL ACTIVITY OF POLYKETONES

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Chinese Journal of Polymer Science 2013年第3期31卷 471-480页

作者： Ismail A.Alkskas Altaher M.Alhubge Faizul azam Polymer Lab Department of ChemistryFaculty of ScienceMisurata University Department of Microbiology Faculty of ScienceMisurata University Faculty of Pharmacy Misurata University

Polyketone resins have been prepared by the Friedel-Crafts polymerization of dithiophenylidenecyclopentanone （I）, dithiophenylidenecyclohexanone （II） and dithiophenylideneacetone （III） with adipoyl, sebacoyl and terephthaloyl dichlorides using boron trifluoride as catalyst and carbon disulphide as solvent. Polymers were characterized with IR, 1H- NMR, and the results showed the presence of carbonyl of ketonic groups in the main chain. The polyketones have inherent viscosities of 0.40-0.70 dL/g. All the polymers are semicrystalline and most of them are partially soluble in most common organic solvents but freely soluble in aprotic solvents. The temperatures of 50% weight loss are as high as 185℃ to 280℃ in air, indicating that these aromatic polyketones have excellent thermal stability. All the polyketones were tested for their antimicrobial activity against bacteria and fungi.

关键词： Synthesis Characterization Polyketones Biological activity.

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Magnetic Properties of an Antiferromagnetic Spin-1/2 XYZ Model in the Presence of Different Magnetic Fields: Finite-Size Effects of Inhomogeneity Property

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Communications in Theoretical Physics 2019年第10期71卷 1253-1260页

作者： Hamid Arian Zad azam Zoshki Moones Sabeti Young Researchers and Elite Club Mashhad BranchIslamic Azad UniversityMashhadIran Alikhanyan National Science Laboratory Alikhanian Br.20036YerevanArmenia

Magnetic and thermodynamic properties of the anisotropic XYZ spin-1/2 finite chain under both homogeneous and inhomogeneous magnetic fields are theoretically studied at low temperature. Using exact diagonalization method(ED), we study the magnetization, magnetic susceptibility, and specific heat of the model characterized in terms of the finite correlation length in the presence of three different magnetic fields including longitudinal, transverse, and transverse staggered magnetic fields. The magnetization, susceptibility, and the specific heat of the model are investigated under two conditions separately:(i) When the model is putted in the presence of homogeneous magnetic fields.(ii) When finite inhomogeneities are considered for all applied magnetic fields in the Hamiltonian. We show that for thefinite-size XYZ chains at low temperature, the evident magnetization plateaus gradually convert to their counterpart quasi-plateaus when the transverse magnetic field increases. Moreover, the influence of the transverse and staggered transverse magnetic fields, and their corresponding inhomogeneities on the magnetization process, magnetic susceptibility, and specific heat are reported in detail. Our exact results illustrate that by altering the inhomogeneity parameters,magnetization plateaus gradually convert to their counterpart quasi-plateaus. The specific heat manifests Schottky-type maximum, double-peak, and triple-peak, as well as, transformation between them by varying considered inhomogeneity parameters in the Hamiltonian.

关键词： spin chain magnetization susceptibility specific heat

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Quaternion Integers Based Higher Length Cyclic Codes and Their Decoding Algorithm

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Computers, Materials & Continua 2022年第10期73卷 1177-1194页

作者： muhammad Sajjad Tariq Shah Mohammad Mazyad Hazzazi Adel R.Alharbi Iqtadar Hussain Department of Mathematics Quaid-I-Azam UniversityIslamabad45320Pakistan Department of Mathematics College of ScienceKing Khalid UniversityAbha61413Saudi Arabia College of Computing and Information Technology University of TabukTabuk71491Saudi Arabia Department of Mathematics Statistics and PhysicsQatar UniversityDoha2713Qatar

The decoding algorithm for the correction of errors of arbitrary Mannheim weight has discussed for Lattice constellations and codes from quadratic number *** these lines,the decoding algorithms for the correction of errors of n=p−12 length cyclic codes(C)over quaternion integers of Quaternion Mannheim(QM)weight one up to two coordinates have *** continuation,the case of cyclic codes of lengths n=p−12 and 2n−1=p−2 has studied to improve the error correction *** this study,we present the decoding of cyclic codes of length n=ϕ(p)=p−1 and length 2n−1=2ϕ(p)−1=2p−3(where p is prime integer andϕis Euler phi function)over Hamilton Quaternion integers of Quaternion Mannheim weight for the correction of ***,the error correction capability and code rate tradeoff of these codes are also ***,an increase in the length of the cyclic code is achieved along with its better code rate and an adequate error correction capability.

关键词： Mannheim distance monoid ring cyclic codes parity check matrix extension syndromes decoding code rate and error correction capability

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Poly(4-vinylpyridine):As a green,efficient and commercial available basic catalyst for the synthesis of chromene derivatives

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Chinese Chemical Letters 2013年第3期24卷 208-210页

作者： Jalal Albadi azam Mansournezhad Mohammad Darvishi-Paduk College of Science Behbahan Khatam Alanbia University of Technology Department of Chemistry Gachsaran BranchIslamic Azad University

Poly（4-vinylpyridine） is reported as a green, commercial available and efficient basic recyclable catalyst for the synthesis of chromene derivatives. This catalyst can be easily recovered by simple filtration and re... 详细信息

关键词： Poly(4-vinylpyridine)ChromeneBasic catalyst-NaphtholMalononitrile

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LOCA事故时碎片堆积引起的水头损失估算

LOCA事故时碎片堆积引起的水头损失估算

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作者： muhammad Safeer azam 华北电力大学(北京)

学位级别：硕士

在发生失水事故(LOCA)或主蒸汽管道破裂事故(MSLB)时,在破口处由于水流喷射和随后高温高压蒸汽的泄漏可能会产生大量不同类型的碎片,如颗粒碎片,潜在的纤维碎片和化学碎片。这些碎片会流向堆芯应急冷却系统(ECCS)或安全壳再循环系统(CR... 详细信息

在发生失水事故(LOCA)或主蒸汽管道破裂事故(MSLB)时,在破口处由于水流喷射和随后高温高压蒸汽的泄漏可能会产生大量不同类型的碎片,如颗粒碎片,潜在的纤维碎片和化学碎片。这些碎片会流向堆芯应急冷却系统(ECCS)或安全壳再循环系统(CRS),可能会附着在地坑滤网上并造成一定的压头损失。其中有部分颗粒碎片可旁通地坑滤网进入一回路系统,影响堆芯冷却剂流道并引起燃料组件压降增加。这些颗粒碎片堆积在燃料组件内,可能会阻碍核电厂堆芯长期冷却(LTCC)的能力。美国核管会(***)规定在运行的商用核电厂必须能够证明其LOCA后能保证堆芯长期冷却。综上所述,研究不同工况下燃料组件内的颗粒碎片对于分析碎片在组件内的分布情况并得到压头损失这一关键参数从而避免发生堆芯熔毁事故具有必要性。针对压水堆AP1000燃料组件(全尺寸组件)由华北电力大学核科学与工程学院搭建了试验测试回路,用于分析不同量的颗粒,纤维,化学沉淀物添加至试验回路后对燃料组件造成的压降影响。本论文的研究目的是记录试验获得的数据并处理,建立CFD模型用于研究导致LTCC失效的堆积在燃料组件内碎片的关键参量。

关键词： LOCA 碎片燃料组件压降离散相模型(DPM) 多孔介质

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