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study of Radially Varying Magnetic Field on Blood Flow through Catheterized Tapered Elastic Artery with Overlapping stenosis

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Communications in Theoretical Physics 2015年第11期64卷 537-546页

作者： s.Nadeem s.ijaz Department of Mathematics Quaid-i-Azam University

A precise model has been developed for studying the inBuence of metallic nanoparticles on blood Row through catheterized tapered elastic arteries with radially varying magnetic field.The model is solved under the mild stenosis approximation by considering blood as viscous fluid.The influence of different Bow parameters associated with this problem such as Hartmann number,nanoparticle volume fraction,Grashof number and heat source or sink parameter is analyzed by plotting the graphs of the wall shear stress,resistance impedance to blood flow and stream lines.The inEuence of the radially varying magnetic field on resistance impedance to Bow is analyzed and it is observed that the signiBcantly strong magnetic force tends to increase in resistance.

关键词： blood flow overlapping stenosis radially varying m

A Clot Model Examination: with Impulsion of Nanoparticles under Influence of Variable Viscosity and slip Effects

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Communications in Theoretical Physics 2017年第11期67卷 667-677页

作者： s.ijaz Iqra shahzadi s.Nadeem Anber saleem Department of Mathematics Faculty of Sciences HITEC University Department of Mathematics Quaid-i-Azam University Islamabad Medical and Dental College

In this speculative analysis, our main focused is to address the neurotic condition that occurs due to accumulation of blood components on the wall of the artery that results in blood coagulation. specifically, to perceive this phenomena clot model is considered. To discuss this analysis mathematical model is formed in the presence of the effective thermal conductivity and variable viscosity of base fluid. Appropriate slip conditions are employed to obtain the close form solutions of temperature and velocity profile. The graphical illustrations have been presented for the assessment of pressure rise, pressure gradient and velocity profile. The effects of several parameters on the flow quantities for theoretical observation are investigated. At the end, the results confirmed that the impulsion of copper and silver nanoparticles as drug agent enlarges the amplitude of the velocity and hence nanoparticles play an important role in engineering and biomedical applications such as drug delivery system.

关键词： variable viscosity metallic nanoparticles slip effects clot model exact solution

Observability of parameter space for charged Higgs boson in its bosonic decays in two Higgs doublet model Type-1

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Chinese Physics C 2024年第2期48卷 57-65页

作者： ijaz Ahmed Waqas Ahmad M.s.Amjad Jamil Muhammad Federal Urdu University of Arts Science and TechnologyIslamabad Pakistan Riphah International University Sector I-14Hajj ComplexIslamabad Pakistan National University of Technology Islamabad Pakistan sang-Ho College and Department of PhysicsKonkuk UniversitySeoul 05029South Korea

This study explores the possibility of discovering H±through its bosonic decays,i.e.,H±→W±φ(whereφ=h or A),within the Type-I two Higgs doublet model(2HDM).The main objective is to demonstrate the available parameter space after applying recent experimental and theoretical exclusion limits.We suggest that mH±=150 GeV is the most probable mass for the H±→W±φdecay channel in pp collisions at s1/2=8,13,and 14 TeV.We also report on the application of a modern machine learning approach to a multivariate technique for heavy charged Higgs production in association with a single top quark through weak interaction to demonstrate its observability in comparison with the most relevant standard Model backgrounds using the neural networks of boosted decision Tree(BDT),likelihood(LH),and multilayer perceptron(MLP).

关键词： charged Higgs MssM LHC

探测激子极化激元在超薄范德华微晶中的光传播

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Chinese Journal of Chemical Physics 2024年第1期37卷 35-42,I0001-I0004,I0117页

作者： Talha ijaz 边琦曹琰丁皓璇陈晓瑞卢欢杨树邢雪婷方思敏刘孟源张鑫高健智潘明虎陕西师范大学物理学与信息技术学院西安710062 华中科技大学物理学院武汉430074 洛阳师范大学物理与电子信息学院洛阳英国伯明翰大学物理与天文学院伯明翰B152TT 西安文理学院机械与材料工程学院西安710065 陕西师范大学地理与旅游学院西安710119 复旦大学信息科学与工程学院上海200433 珠海复旦创新研究院珠海519000 西北大学物理学院西安710069

激子极化激元是一种准粒子,过渡金属二硫族化合物材料即使在室温下也能支持传播激子极化子,是非常好的纳米光子学研究平台.已有研究表明,通过散射型扫描近场光学显微镜可以对过渡金属二硫族化合物薄片中激子极化激元进行实空间探测,但... 详细信息

激子极化激元是一种准粒子,过渡金属二硫族化合物材料即使在室温下也能支持传播激子极化子,是非常好的纳米光子学研究平台.已有研究表明,通过散射型扫描近场光学显微镜可以对过渡金属二硫族化合物薄片中激子极化激元进行实空间探测,但波导厚度仅限于低至30 nm.本文采用三种不同波长的入射光(1550和1064 nm的近红外以及633 nm的可见光),通过基于原子力显微镜的散射型扫描近场光学显微镜测量,探测到Mos2和Wse2薄片中激子极化子普通横电模式的纳米光学成像.在厚度分别低至~3 nm(相当于4原子层)和~8 nm(相当于12原子层)的超薄Mos2和Wse2薄片上,可以清楚地观察到干涉条纹图案,大大打破了之前的测量厚度限制.当厚度接近几个原子层时,波矢量始终保持在1.6k0~1.7k0左右,而不是理论预言的1k0.这些模式的特性表明,体系是由近乎悬浮的过渡金属二硫族化合物薄片的三层对称波导构成,其对激子极性子的传播产生限域效应.研究结果为探索基于超薄过渡金属二硫族化合物材料的近红外区极化器件提供了深入的理解和开辟了新的途径.

关键词：二维过渡金属二硫族化合物材料散射型扫描近场光学显微镜激子极化子

Emerging trends of electrocatalytic technologies for renewable hydrogen energy from seawater:Recent advances,challenges,and techno-feasible assessment

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Journal of Energy Chemistry 2023年第5期80卷 658-688,I0014页

作者： Obaid Fahad Aldosari ijaz Hussain Zuhair Malaibari Department of Chemistry College of ScienceMajmaah UniversityP.O.Box 66Majmaah 11952Saudi Arabia Center for Refining&Advanced Chemicals King Fahd University of Petroleum&MineralsDhahran 31261Saudi Arabia Department of Chemical Engineering King Fahd University of Petroleum&MineralsDhahran 31261Saudi Arabia

Hydrogen has been regarded as a promising renewable and green energy source to meet energy needs and attain net-zero carbon emissions.The electrolysis of seawater to make hydrogen is one of the fascinating developments of the twenty-first century.This method uses abundant and relatively inexpensive seawater,as opposed to freshwater,which is rare and can be prohibitively expensive.In recent years,significant research and advancements have been made in direct seawater electrolysis technology for hydrogen production.However,producing highly effective and efficient electrocatalysts with long-term viability under harsh corrosive conditions remains a challenging and severe topic for large-scale seawater electrolysis technology.There is still a large accomplishment gap in understanding how to improve seawater electrolysis to increase hydrogen yields and prolong stability.It is,therefore,crucial to have a condensed knowledge of the tunable and inherent interactions between various electrocatalysts,covering electrolyzer types and paying particular attention to those with high efficiency,chemical stability,and conductivity.The extensive discussion is structured into a progression from noble metals to base metal compounds such as oxides,alloys,phosphides,chalcogenides,hydroxides,and nitrides,MXene-based complexes with a concise examination of hybrid electrocatalysts.In addition,proton exchange membranes,anion exchange membranes,alkaline water electrolyzers,and high-temperature water electrolyzers were potential contributors to seawater’s electrolysis.An extensive assessment of the techno-feasibility,economic insights,and future suggestions was done to commercialize the most efficient electrocatalytic systems for hydrogen production.This review is anticipated to provide academics,environmentalists,and industrial researchers with valuable ideas for constructing and modifying seawater-based electrocatalysts.

关键词： seawater splitting Hydrogen production Electrolysis Electrocatalysts Electrolyzers Techno-feasible analysis Review

Characteristics of pulsed photo-stimulated luminescence and thermoluminescence for the identification of gamma irradiated poultry eggs

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Nuclear science and Techniques 2007年第1期18卷 20-25页

作者： ijaz A.BHATTI Jong-Ho KWON salim Ur-REHMAN Department of Chemistry University of AgricultureFaisalabadPakistan Department of Food science & Technology Kyungpook National University702-701DaeguSouth Korea Institute of Food science & Technology University of AgricultureFaisalabadPakistan

Pulsed photo-stimulated luminescence (PPsL) is a simple screening method that can be employed qualitatively at the spot for the detection of eggs treated with ionizing radiation.Due to the variations in the results during storage,the eggs of ostrich,duck,hen,and quail were irradiated to doses of 0,1,2,and 3 kGy.Most of the samples were incorrectly identified during storage after four months of irradiation.Thermoluminescence (TL) technique was also tried by using egg shells in order to confirm the irradiation treatment in eggs.TL glow curves were recorded between the temperatures 50℃to 400℃at the rate of 5°/s for all the control and irradiated samples.On the basis of integrated areas of first glow curves (TL1),the glow curve ratios (TL1/TL2) and the shapes of maxima of TL1, the irradiation treatment of all the eggs was confirmed.Furthermore,the presence of calcite and aragonite minerals that cause the TL signal in the egg shells were studied using X-ray diffraction spectrometry.

关键词：禽蛋鸡蛋 γ射线脉冲光刺激发光热致发光辐射保鲜

Few-shot Bioacoustics Event Detection Using Transductive Inference and Data Augmentation

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Few-shot Bioacoustics Event Detection Using Transductive Inf...

作者： Nouman ijaz（王建志）华南理工大学

学位级别：硕士

Bioacoustics event detection is a challenging task that involves recognizing and classifying various types of sounds produced by animals and insects in their natural habitats.Traditional supervised learning techniques need a lot of labeled training data,which is challenging when dealing with bioacoustics events with few training samples.Few-shot learning provides a promising solution to this problem by training models with very few training samples.The idea to use transductive inference in the proposed method is inspired by its usefulness in computer vision.While the motivation behind using data augmentation is to improve the generalization capability of the model by artificially creating more training examples.We present a few-shot learning method for bioacoustics event detection that combines transductive inference with data augmentation techniques.The transductive inference is used to ensure that the model's input and output share much relevant information about the underlying pattern in the bioacoustics event.This is done by updating the class prototypes and feature extractors in an iterative manner.Data augmentation is used to increase the amount of training data and add diversity to the input of the model.In particular,the Mel-spectrogram features obtained from the audio recordings are increased using spec Augment methods like time masking,frequency masking,and time warping.We conduct experiments using the DCAsE-2022 and DCAsE-2021 datasets,which are the two official datasets for the challenge on Detection and Classification of Acoustics scenes and Events(DCAsE).The datasets are pre-split into training and validation sets,which contain audio recordings from a wide variety of bioacoustics sources,including meerkats,spotted hyenas,jackdaws,and wetland birds,as well as globally distributed species.Mel-spectrogram features are utilized,followed by per channel energy normalization,to decrease the impact of noise and make the system more resistant to channel distortion.The proposed method is compared with a basel

关键词： Few-shot learning Bioacoustics event detection Transductive inference Data augmentation

Lithological mapping with multispectral data–setup and application of a spectral database for rocks in the Balakot area, Northern Pakistan

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Journal of Mountain science 2017年第5期14卷 948-963页

作者： Michael FUCHs Adnan A.AWAN sardar s.AKHTAR ijaz AHMAD simon sADIQ Asif RAZZAK Naghmah HAIDER Federal Institute for Geosciences and Natural Resources Stilleweg 230655 HanoverGermany Geological survey of Pakistan IslamabadPakistan

In the frame of landslide susceptibility assessment, a spectral library was created to support the identification of materials confined to a particular region using remote sensing images. This library, called Pakistan spectral library(pklib) version 0.1, contains the analysis data of sixty rock samples taken in the Balakot region in Northern Pakistan.The spectral library is implemented as sQLite database. structure and naming are inspired by the convention system of the AsTER spectral Library. Usability, application and benefit of the pklib were evaluated and depicted taking two approaches, the multivariate and the spectral based. The spectral information were used to create indices. The indices were applied to Landsat and AsTER data tosupportthespatial delineation of outcropping rock sequences instratigraphic formations. The application of the indices introduced in this paper helps to identify spots where specific lithological characteristics occur. Especially in areas with sparse or missing detailed geological mapping, the spectral discrimination via remote sensing data can speed up the survey. The library can be used not only to support the improvement of factor maps for landslide susceptibility analysis, but also to provide a geoscientific basisto further analyze the lithological spotin numerous regions in the Hindu Kush.

关键词： Lithological mapping Multispectral data spectral library Normalized difference index Northern Pakistan

Is pegylated interferon superior to interferon,with ribavarin,in chronic hepatitis C genotypes 2/3?

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World Journal of Gastroenterology 2008年第43期14卷 6627-6631页

作者： ijaz s Jamall shafaq Yusuf Maimoona Azhar selene Jamall Risk-Based Decisions Inc.2033 Howe AvenueSuite 240SacramentoCalifomia 95825United States Dow Medical College and Civil Hospital Karachi74000Pakistan University of California-san Diego La JollaCA 92092United States

在过去的十年，重要改进在长期的丙肝(CHC ) 的治疗被做了，特别与用干扰素和 ribavarin 的联合治疗的介绍。治疗的最佳的剂量和持续时间仍然是争论的一件事，重要地，这联合治疗的功效与为感染负责的病毒的遗传型变化。一般来说，病人... 详细信息

在过去的十年，重要改进在长期的丙肝(CHC ) 的治疗被做了，特别与用干扰素和 ribavarin 的联合治疗的介绍。治疗的最佳的剂量和持续时间仍然是争论的一件事，重要地，这联合治疗的功效与为感染负责的病毒的遗传型变化。一般来说，病人们比感染病毒的遗传型的那些与 2 或 3 更乐意地完成的病毒的遗传型感染了持续病毒的回答 1。在过去的十年的干扰素的一个 pegylated 版本的介绍在感染病毒的遗传型的病人生产了更好临床的结果 1。然而，出版文学不在感染病毒的遗传型的病人在临床的结果显示出改进 2 或 3 当他们与 non-pegylated 干扰素对比与 pegylated 干扰素被对待时，与 ribavarin 在联合给的两个。因为有在开发更少的国家的 pegylated 干扰素的 24-wk 治疗的费用在比有干扰素的治疗的大的六和 30 次之间，这是重要的。因此，临床医生们需要小心地考虑使用 pegylated 干扰素对待 CHC 的 cost-versus-benefit，特别地当为在有遗传型的病人的临床上可测量的好处没有证据时 2 和 3 感染。

关键词：丙肝遗传型干扰素慢性肝炎