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Heat transfer and nanofluid flow over a porous plate with radiation and slip boundary conditions

Journal of Central South University 2019年第5期26卷 1099-1115页

作者： Hamid MALEKI Jalal ALSARRAF abbas moghanizadeh Hassan HAJABDOLLAHI Mohammad Reza SAFAEI Department of Mechanical Engineering Isfahan University of TechnologyIsfahan 84156-83111Iran Department of Automotive and Marine Engineering Technology College of Technological StudiesThe Public Authority for Applied Education and TrainingKuwait Biomaterial Research Group Department of Materials EngineeringIsfahan University of TechnologyIsfahan 84156-83111Iran Department of Mechanical Engineering Vali-e-Asr University of RafsanjanRafsanjanIran Division of Computational Physics Institute for Computational ScienceTon Duc Thang UniversityHo Chi Minh CityVietnam Faculty of Electrical and Electronics Engineering Ton Duc Thang UniversityHo Chi Minh CityVietnam

Presence of different terms with various values can alter the thermal behavior of the nanofluids flow over porous *** aim of this research is to study the influence of nanoparticles volume fraction,nanoparticles type,suction or injection,the heat generation or absorption,the Eckert number,thermal and velocity slip parameters,and radiation on the velocity and temperature fields on the flow and heat transfer over a porous flat *** different types of nanoparticles including metal nanoparticles (Cu),metal oxide nanoparticles (Al2O3) and carbon-based nanomaterials (MWCNTs and SWCNTs) which were dispersed in the water (as based fluid) are *** governing equations are converted into the ordinary differential equations using similarity solution and solved numerically by the RKF45 *** results of the simulations showed a contradiction with the results of other researchers who expressed that using nanoparticles with higher thermal conductivity and volume fraction led to increasing heat transfer rate in nanofluids;this study proves that,in some cases,boosting the volume fraction of nanoparticles has a potential to decrease the heat transfer rate due to significant changes in values of some parameters including radiation,heat generation,and viscous dissipation.

关键词： radiation slip condition porous surface heat generation/absorption viscous dissipation nanofluid

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Expanding role of antibodies in kidney transplantation

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World Journal of Transplantation 2025年第1期15卷 57-71页

作者： Khawar abbas Muhammed Mubarak Department of Transplant Immunology Sindh Institute of Urology&TransplantationKarachi 74200SindhPakistan Javed I.Kazi Department of Histopathology Sindh Institute of Urology&TransplantationKarachi 74200SindhPakistan

The role of antibodies in kidney transplant(KT)has evolved significantly over the past few *** role of antibodies in KT is multifaceted,encompassing both the challenges they pose in terms of antibody-mediated rejection(AMR)and the opportunities for improving transplant outcomes through better detection,prevention,and treatment *** our understanding of the immunological mechanisms continues to evolve,so too will the approaches to managing and harnessing the power of antibodies in KT,ultimately leading to improved patient and graft *** narrative review explores the multifaceted roles of antibodies in KT,including their involvement in rejection mechanisms,advancements in desensitization protocols,AMR treatments,and their potential role in monitoring and improving graft survival.

关键词： Antibodies Humoral theory Kidney transplantation Rejection

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Experiments on image data augmentation techniques for geological rock type classification with convolutional neural networks

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Journal of Rock Mechanics and Geotechnical Engineering 2025年第1期17卷 106-125页

作者： Afshin Tatar Manouchehr Haghighi abbas Zeinijahromi School of Chemical Engineering Discipline of Mining and Petroleum EngineeringThe University of AdelaideAdelaideSA 5005Australia

The integration of image analysis through deep learning(DL)into rock classification represents a significant leap forward in geological *** traditional methods remain invaluable for their expertise and historical context,DL offers a powerful complement by enhancing the speed,objectivity,and precision of the classification *** research explores the significance of image data augmentation techniques in optimizing the performance of convolutional neural networks(CNNs)for geological image analysis,particularly in the classification of igneous,metamorphic,and sedimentary rock types from rock thin section(RTS)*** study primarily focuses on classic image augmentation techniques and evaluates their impact on model accuracy and *** demonstrate that augmentation techniques like Equalize significantly enhance the model's classification capabilities,achieving an F1-Score of 0.9869 for igneous rocks,0.9884 for metamorphic rocks,and 0.9929 for sedimentary rocks,representing improvements compared to the baseline original ***,the weighted average F1-Score across all classes and techniques is 0.9886,indicating an ***,methods like Distort lead to decreased accuracy and F1-Score,with an F1-Score of 0.949 for igneous rocks,0.954 for metamorphic rocks,and 0.9416 for sedimentary rocks,exacerbating the performance compared to the *** study underscores the practicality of image data augmentation in geological image classification and advocates for the adoption of DL methods in this domain for automation and improved *** findings of this study can benefit various fields,including remote sensing,mineral exploration,and environmental monitoring,by enhancing the accuracy of geological image analysis both for scientific research and industrial applications.

关键词： Deep learning(DL) Image analysis Image data augmentation Convolutional neural networks(CNNs) Geological image analysis Rock classification Rock thin section(RTS)images

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Transport mechanism in chemically reactive hybrid nanofluid flow containing gyrotactic micro-organisms over a curved oscillatory surface

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 177-192页

作者： M.NAVEED M.IMRAN T.ASGHAR Z.abbas Department of Mathematics Division of Science and TechnologyUniversity of Education Department of Mathematics The Islamia University of Bahawalpur

This paper examines the transport analysis, including both heat transfer and mass transfer, in hybrid nanofluid flow containing gyrotactic microorganisms towards a curved oscillatory surface. The influence of magnetic fields is also inspected in terms of their physical characteristics. To depict the phenomena of transport, modified versions of both Fick's and Fourier's laws are used. Additionally, the characteristics of both heterogeneous and homogeneous chemical reactions are also incorporated. Utilizing a curvilinear coordinate system, the flow problem is formulated as partial differential equations(PDEs)for momentum, concentration, microorganism field, and energy. An analytical solution to the obtained flow equations is achieved utilizing the homotopy analysis method(HAM).The effects of significant flow parameters on the pressure and microorganism fields, velocity, oscillation velocity, concentration, and temperature distributions are shown via graphs. Furthermore, the variations in skin friction, mass transfer rate, heat transfer rate, and local motile number due to different involved parameters are presented in tables and are analyzed in detail. Graphical results indicate that the curves of velocity and temperature fields are enhanced as the values of the solid volume fraction variables *** is also verified that the concentration rate field decreases as the values of the homogeneous reaction strength parameter and the radius of curvature parameter increase, and it increases with the Schmidt number and the heterogeneous reaction strength *** outcomes show a favorable response of the motile number to advanced values of the Peclet number, the Schmidt number, the microorganism difference parameter, and the bio-convective Lewis number.

关键词： analytical solution Cattaneo-Christov heat and mass flux chemical reaction gyrotactic microorganism hybrid nanofluid O368 oscillating curved stretchable sheet

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“Superimposed”spectral characteristics of fluorophores arising from cross-conjugation hybridization

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Chinese Chemical Letters 2025年第1期36卷 442-446页

作者： Kai An Qinglong Qiao Lovelesh Syed Ali abbas Abedi Xiaogang Liu Zhaochao Xu CAS Key Laboratory of Separation Science for Analytical Chemistry Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China University of Chinese Academy of Sciences Beijing 100049China Fluorescence Research Group Singapore University of Technology and DesignSingapore 487372Singapore

The demand for enhanced optical properties in advanced fluorescence technologies has driven research into the structure-property relationship of *** this paper,we use naphthalene fluorophores Na DC-Aze and PhDO-Aze as a case study to emphasize the pivotal role of cross conjugation in tuning the optical structure-property *** DC-Aze and PhDO-Aze,formed by hybridizing two distinct conjugated systems in a single naphthalene molecule,exhibit spectral characteristics from both conjugated *** data and theoretical calculations demonstrate the coexistence of two electron-delocalization systems in a cross-conjugation manner in both Na DC-Aze and *** cross-conjugation fluorophores exhibit high brightness,large Stokes shift,and a broad absorption wavelength range by combining distinct spectral properties from its parent *** spectral properties will be advantageous for certain applications(i.e.,panchromatic absorption in organic solar cells,and fluorophores compatible with a wide range of excitation wavelengths).

关键词： Fluorophore Cross conjugation Absorption Emission Naphthalene

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Rainfall-induced wind erosion in soils stabilized with alkali-activated waste materials

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Journal of Rock Mechanics and Geotechnical Engineering 2025年第1期17卷 465-480页

作者： Alireza Komaei abbas Soroush Seyed Mohammad Fattahi Hesam Ghanbari Department of Civil and Environmental Engineering Amirkabir University of TechnologyTehran159163431Iran

This study evaluates the efficacy of sustainable erosion control using slag-based alkali-activated cement crusts under varying rainfall and wind conditions. The rainfall intensities ranged from 30 mm/h to 120 mm/h, with durations ranging from 15 min to 90 min, and crust slopes of ∼2° (gentle) and 30° (steep). Wind tunnel experiments were conducted at wind velocities of 14 m/s, 21 m/s, and 28 m/s to investigate post-rainfall wind erodibility, along with changes in crust strength and microstructure analysis. The findings show the development of hydrated cementitious phases in alkali-activated material, which form around and between the particles during the alkaline activation process. Alkali-activated cement crusts significantly reduced erosion caused by rainfall and subsequent wind by several orders of magnitude. At the highest rainfall intensity of 120 mm/h, rainfall erosion was measured to be 1654.81 kg/m2 for untreated samples and 0.89 kg/m2 for treated samples, demonstrating a substantial 99.95% reduction in erosion due to the treatment. Similarly, at the highest wind speed tested, wind erosion was 122.75 kg/m2 for untreated samples and 0.095 kg/m2 for treated samples, indicating a significant 99.92% reduction in erosion due to the formation of an alkali-activated cement crust on the soil surface. However, exposure of the samples to 120 mm/h rainfall for 90 min resulted in a 5.2-fold increase in wind erosion compared to pre-rainfall conditions. Similarly, penetrometer results indicated a 37%–54% reduction in post-rainfall surface strength.

关键词： Rainfall erosion Alkali-activated material Wind erosion Crust formation

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Fibrotic liver extracellular matrix induces cancerous phenotype in biomimetic micro-tissues of hepatocellular carcinoma model

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Hepatobiliary & Pancreatic Diseases International 2025年第1期24卷 92-103页

作者： Kosar Nouri abbas Piryaei Homeyra Seydi Ibrahim Zarkesh Ibrahim Ghoytasi Bahare Shokouhian Mustapha Najimi Massoud Vosough Department of Developmental Biology University of Science and CultureACECR 14155-4364 TehranIran Department of Regenerative Medicine Cell Science Research CenterRoyan Institute for Stem Cell Biology and TechnologyACECR 14155-4364 TehranIran Department of Stem Cells and Developmental Biology Cell Science Research CenterRoyan Institute for Stem Cell Biology and TechnologyACECR 14155-4364 TehranIran Department of Biology and Anatomical Sciences School of MedicineShahid Beheshti University of Medical SciencesTehranIran Department of Tissue Engineering and Applied Cell Sciences School of Advanced Technologies in MedicineShahid Beheshti University of Medical SciencesTehranIran Department of Cell Engineering Cell Science Research CenterRoyan Institute for Stem Cell Biology and TechnologyACECR 14155-4364 TehranIran Department of Medical Biotechnology School of Advanced Technologies in MedicineTehran University of Medical SciencesTehranIran Laboratory of Pediatric Hepatology and Cell Therapy Institute of Experimental and Clinical Research(IREC)UCLouvainBrusselsBelgium Experimental Cancer Medicine Institution for Laboratory MedicineKarolinska InstituteStockholmSweden

Background: Despite considerable advancements in identifying factors contributing to the development of hepatocellular carcinoma(HCC), the pathogenesis of HCC remains unclear. In many cases, HCC is a consequence of prolonged liver fibrosis, resulting in the formation of an intricate premalignant microenvironment. The accumulation of extracellular matrix(ECM) is a hallmark of premalignant microenvironment. Given the critical role of different matrix components in regulating cell phenotype and function, this study aimed to elucidate the interplay between the fibrotic matrix and malignant features in HCC. Methods: Liver tissues from both control(normal) and carbon tetrachloride(CCl_(4))-induced fibrotic rats were decellularized using sodium dodecyl sulfate(SDS) and Triton X-100. The resulting hydrogel from decellularized ECM was processed into micro-particles via the water-in-oil emulsion method. Microparticles were subsequently incorporated into three-dimensional liver biomimetic micro-tissues(MTs) comprising Huh-7 cells, human umbilical vein endothelial cells(HUVECs), and LX-2 cells. The MTs were evaluated using the 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium(MTS) assay at day 11, immunofluorescence staining, immunoblotting, and spheroid migration assay at day 14 after co-culture. Results: Fibrotic matrix from CCl4-treated rat livers significantly enhanced the growth rate of the MTs and their expression of CCND1 as compared to the normal one. Fibrotic matrix, also induced the expression of epithelial-to-mesenchymal transition(EMT)-associated genes such as TWIST1, ACTA2, MMP9, CDH2, and VIMENTIN in the MTs as compared to the normal matrix. Conversely, the expression of CDH1 and hepatic maturation genes HNF4A, ALB, CYP3A4 was decreased in the MTs when the fibrotic matrix was used. Furthermore, the fibrotic matrix increased the migration of the MTs and their secretion of alpha-fetoprotein. Conclusions: Our findings suggest a

关键词： Liver fibrosis Decellularized extracellular matrix Spheroid Epithelial-to-mesenchymal transition Cell differentiation Hepatocellular carcinoma

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Deep Learning and Artificial Intelligence-Driven Advanced Methods for Acute Lymphoblastic Leukemia Identification and Classification: A Systematic Review

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Computer Modeling in Engineering & Sciences 2025年第2期142卷 1199-1231页

作者： Syed Ijaz Ur Rahman Naveed abbas Sikandar Ali Muhammad Salman Ahmed Alkhayat Jawad Khan Dildar Hussain Yeong Hyeon Gu Department of Computer Science Islamia CollegePeshawar25120Pakistan Department of Information Technology The University of HaripurHaripur22620Pakistan College of Technical Engineering The Islamic UniversityNajaf100986Iraq School of Computing Gachon UniversitySeongnam13120Republic of Korea Department of AI and Data Science Sejong UniversitySeoul05006Republic of Korea

Automatic detection of Leukemia or blood cancer is one of the most challenging tasks that need to be addressed in the healthcare *** of white blood cells(WBCs)in the blood or bone marrow microscopic slide images play a crucial part in early identification to facilitate medical *** Acute Lymphocytic Leukemia(ALL),the most preferred part of the blood or marrow is to be analyzed by the experts before it spreads in the whole body and the condition becomes *** researchers have done a lot of work in this field,to demonstrate a comprehensive analysis few literature reviews have been published focusing on various artificial intelligence-based techniques like machine and deep learning detection of *** systematic review has been done in this article under the PRISMA guidelines which presents the most recent advancements in this *** image segmentation techniques were broadly studied and categorized from various online databases like Google Scholar,Science Direct,and PubMed as image processing-based,traditional machine and deep learning-based,and advanced deep learning-based models were *** Neural Networks(CNN)based on traditional models and then the recent advancements in CNN used for the classification of ALL into its subtypes.A critical analysis of the existing methods is provided to offer clarity on the current state of the ***,the paper concludes with insights and suggestions for future research,aiming to guide new researchers in the development of advanced automated systems for detecting life-threatening diseases.

关键词： Acute lymphoblastic bone marrow segmentation classification machine learning deep learning convolutional neural network

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Determination of Fungal Species to Investigate the Aflatoxin Contamination in Rice(Oryza sativa L.)

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Phyton-International Journal of Experimental Botany 2025年第2期94卷 407-420页

作者： Eman Alhomaidi Aisha Umar Mustansar Mubeen Laurent Dufossé Yasir Iftikhar Arpita Das Soumya Ghosh Muhammad Sibt-e-abbas Department of Biology College of SciencePrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Institute of Botany University of the PunjabLahore54000Pakistan Department of Plant Pathology College of AgricultureUniversity of SargodhaSargodha40100Pakistan Universitéde La Réunion Laboratoire CHEMBIOPRO(Chimie et Biotechnologie des Produits Naturels)ESIROI Département agroalimentaire15 avenue RenéCassinSaint-DenisF-97490France Department of Biotechnology Adamas UniversityBarasat-Barrackpore Road24 Parganas NorthJagannathpurKolkata700126West BengalIndia Natural and Medical Sciences Research Center University of NizwaNizwa616Oman Department of Food Science&Technology Faculty of Food&Home SciencesMNS-University of AgricultureMultan630496Pakistan

Aspergillus species produce aflatoxins and raise concerns about food safety in departmental stores and manufacturing *** address the risks posed by aflatoxins,and to advise the public on the highest quality rice that serves as a nutritious food source,an inquiry following the guidelines outlined in both local and international standards of food safety for the presence of aflatoxins is an essential ***,16 white rice samples were selected randomly from low/high socio-economic departmental stores from 16 different *** powdered rice filtrate was extracted using *** filtrate applied on TLC plates and the amount of aflatoxin and moisture contents were *** the non-infected rice,moisture content was low(9.08%)whereas high[13.65%>12%(standard>value)]in infected *** out of 8 samples of low-quality rice were contaminated with AFB_(1) and AFB_(2)(ranging from 22.2 to 29.3μg/kg).All the samples except one(22.3μg/kg)from high-quality rice were certified fit despite the contamination with AFB_(1).Furthermore,phylogenetic analysis showed Aspergillus flavus from unfit low(Long grain brown and Brown basmati)and high-quality(Basmati-198)rice whereas *** from unfit low-quality Medium-grain brown *** presented research proves that the detection of fungi and aflatoxins in rice grains poses a huge risk to the health of ***,it is necessary to check the rice grains before distribution.

关键词： Mycotoxin aflatoxin rice contamination TLC principal component analysis

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Experimental Study of Forced Convective Heat Transfer in a Copper Tube Using Three Types of Nanofluids

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Fluid Dynamics & Materials Processing 2025年第2期21卷 351-370页

作者： Zahraa N.Hussain Jamal M.Ali Hasan S.Majdi abbas J.Sultan H.Al-Naseri Department of Chemical Engineering University of Technology-IraqBaghdad10066Iraq Department of Chemical Engineering and Petroleum Industries Al-Mustaqbal UniversityBabylon51001Iraq Chemical Engineering Department College of EngineeringTikrit UniversityTikrit34001Iraq

The use of nanofluids as heat transfer media represents an innovative strategy to enhance heat transfer *** study investigates experimentally the turbulent convective heat transfer characteristics of waterbased nanofluids containing TiO_(2),CuO,and graphene nanoplatelet(GNP)nanoparticles as they flow through a copper *** the dynamic viscosity and thermal conductivity of these nanofluids were modeled and experimentally measured across varying nanoparticle concentrations(0.01,0.02,and 0.03 vol.%)and temperatures(25℃,35℃,and 45℃).The findings indicate that the behavior of nanofluids depends on the parameter used for comparison with the base ***,both the friction factor and heat transfer coefficient increase with higher nanoparticle volume concentrations at a constant Reynolds *** results further reveal that the GNP/water nanofluid,with a volume concentration of 0.03%at 45℃,exhibit the highest Nusselt number,followed by the CuO/water and TiO_(2)/water nanofluids,with respective increases of 17.8%,11.09%,and 8.11%.

关键词： Nanofluid heat transfer coefficient thermal conductivity heat transfer enhancement

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