检索结果-南通市图书馆

Serum resistin and the risk for hepatocellular carcinoma in diabetic patients

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2023年第27期29卷 4271-4288页

作者： mona Mohamed Ibrahim Abdalla Department of Human Biology School of MedicineInternational Medical UniversityBukit Jalil 57000Kuala LumpurMalaysia

Hepatocellular carcinoma(HCC),the predominant type of liver cancer,is a major contributor to cancer-related fatalities across the *** has been identified as a significant risk factor for HCC,with recent research indicating that the hormone resistin could be involved in the onset and advancement of HCC in diabetic *** is a hormone that is known to be involved in inflammation and insulin *** with HCC have been observed to exhibit increased resistin levels,which could be correlated with more severe disease stages and unfavourable ***,the exact processes through which resistin influences the development and progression of HCC in diabetic patients remain *** article aims to examine the existing literature on the possible use of resistin levels as a biomarker for HCC development and ***,it reviews the possible pathways of HCC initiation due to elevated resistin and offers new perspectives on comprehending the fundamen-tal mechanisms of HCC in diabetic *** a better understanding of these processes may yield valuable insights into HCC’s development and progression,as well as identify possible avenues for prevention and therapy.

关键词： Hepatocellular carcinoma Resistin Insulin resistance Obesity Diabetes Liver cancer

Securing Copyright Using 3D Objects Blind Watermarking Scheme

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2022年第9期72卷 5969-5983页

作者： Hussein Abulkasim mona Jamjoom Safia Abbas Faculty of Science New Valley UniversityEl-Kharga 72511Egypt Department of Computer Sciences College of Computer and Information SciencePrincess Nourah Bint Abdulrahman UniversityRiyadh 11671Saudi Arabia

Recently,securing Copyright has become a hot research topic due to rapidly advancing information *** a host cover,watermarking methods are used to conceal or embed sensitive information messages in such a manner that it was undetectable to a human observer in contemporary *** media covers may often take any form,including audio,video,photos,even DNA data *** this work,we present a new methodology for watermarking to hide secret data into 3-D *** technique of blind extraction based on reversing the steps of the data embedding process is *** implemented technique uses the features of the 3-D object vertex’discrete cosine transform to embed a grayscale image with high *** coefficient of vertex and the encrypted picture pixels are used in the watermarking ***,the extraction approach is fully blind and is dependent on the backward steps of the encoding procedure to get the hidden *** distance,Euclidean distance,Manhattan distance,and the Cosine distance are used to evaluate and test the performance of the proposed *** visibility and imperceptibility of the proposed method are assessed to show the efficiency of our work compared to previous corresponding methods.

关键词： Discrete cosine transform 3-D object copyright watermarking

Complete Monotonicity of Functions Related to Trigamma and Tetragamma Functions

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computer Modeling in Engineering & Sciences 2022年第4期131卷 263-275页

作者： mona Anis Hanan Almuashi Mansour Mahmoud Faculty of Science Mathematics DepartmentMansoura UniversityMansoura35516Egypt Faculty of Science Mathematics DepartmentJeddah UniversityJeddah21589Saudi Arabia Faculty of Science Mathematics DepartmentKing Abdulaziz UniversityJeddah21589Saudi Arabia

In this paper,we study the completely monotonic property of two functions involving the functionΔ(x)=[ψ′(x)]2+ψ″(x)and deduce the double inequality x^(2)+3x+3/3x^(4)(2x+1)^(2)0which improve some recent results,whereψ(x)is the logarithmic derivative of the Gamma ***,we deduce the completely monotonic degree of a function involvingψ′(x).

关键词： Trigamma function tetragamma function completely monotonic function completely monotonic degree inequality

Molecular design and applications of a nanostructure green Tripodal surface active ionic liquid in enhanced oil recovery: Interfacial tension reduction, wettability alteration, and emulsification

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Petroleum Science 2023年第6期20卷 3530-3539页

作者： mona Kharazi Javad Saien Morteza Torabi Mohammad Ali Zolfigol Faculty of Chemistry and Petroleum Science Bu–Ali Sina UniversityHamedan***Iran

Surface active ionic liquids (SAILs) are considered as prominent materials in enhanced oil recovery thanks to their high interfacial activity. This study reports the preparation and applications of a nanostructure Tripodal imidazolium SAIL as an environmentally-friendly substitute to the conventional surfactants. The product has a star-like molecular structure centered by a triazine spacer, namely [(C_(4)im)_(3)TA][Cl_(3)], prepared by a one-step synthesis method and characterized with FT-IR, NMR, XRD, and SEM analysis methods. The interfacial tension of the system was decreased to about 78% at critical micelle concentration of less than 0.08 mol·dm^(−3). Increasing temperature, from 298.2 to 323.2 K, improved this capability. The solid surface wettability was changed from oil-wet to water-wet and 80% and 77% stable emulsions of crude oil–aqueous solutions were created after one day and one week, respectively. Compared to the Gemini kind homologous SAILs, the superior effects of the Tripodal SAIL were revealed and attributed to the strong hydrophobic branches in the molecule. The Frumkin adsorption isotherm precisely reproduced the generated IFT data, and accordingly, the adsorption and thermodynamic parameters were determined.

关键词： Tripodal ionic liquids Green materials Enhanced oil recovery Interfacial tension Wettability Emulsification

Plant Leaf Diseases Classification Using Improved K-Means Clustering and SVM Algorithm for Segmentation

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2023年第7期76卷 367-382页

作者： mona Jamjoom Ahmed Elhadad Hussein Abulkasim Safia Abbas Department of Computer Sciences College of Computer and Information SciencesPrincess Nourah Bint Abdulrahman UniversityRiyadhSaudi Arabia Department of Computer Science Faculty of Computers and InformationSouth Valley UniversityQena83523Egypt Faculty of Science New Valley UniversityEl-Kharga72511Egypt Department of Computer Science Faculty of Computer and Information SciencesAin Shams UniversityCairo11566Egypt

Several pests feed on leaves,stems,bases,and the entire plant,causing plant *** a result,it is vital to identify and eliminate the disease before causing any damage to *** detecting plant disease and treating it is pretty challenging in this *** processing is employed to detect plant disease since it requires much effort and an extended processing *** main goal of this study is to discover the disease that affects the plants by creating an image processing system that can recognize and classify four different forms of plant diseases,including Phytophthora infestans,Fusarium graminearum,Puccinia graminis,tomato yellow leaf ***,this work uses the Support vector machine(SVM)classifier to detect and classify the plant disease using various steps like image acquisition,Pre-processing,Segmentation,feature extraction,and *** gray level co-occurrence matrix(GLCM)and the local binary pattern features(LBP)are used to identify the disease-affected portion of the plant *** to experimental data,the proposed technology can correctly detect and diagnose plant sickness with a 97.2 percent accuracy.

关键词： SVM machine learning GLCM algorithm K-means clustering LBP

Virus-like particle vaccinology,from bench to bedside

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Cellular & Molecular Immunology 2022年第9期19卷 993-1011页

作者： mona O.Mohse Martin F.Bachmann Department of BioMedical Research University of BernBernSwitzerland Department of Immunology RIA University Hospital BernBernSwitzerland Saiba Biotech AG Bahnhofstr.13CH-8808PfaeffikonSwitzerland The Jenner Institute University of OxfordOxfordUK

Virus-like particles(VLPs)have become key tools in biology,medicine and even *** their initial use to resolve viral structures at the atomic level,VLPs were rapidly harnessed to develop antiviral vaccines followed by their use as display platforms to generate any kind of *** recently,VLPs have been employed as nanomachines to deliver pharmaceutically active products to specific sites and into specific cells in the ***,we focus on the use of VLPs for the development of vaccines with broad fields of indications ranging from classical vaccines against viruses to therapeutic vaccines against chronic inflammation,pain,allergy and *** this review,we take a walk through time,starting with the latest developments in experimental preclinical VLP-based vaccines and ending with marketed vaccines,which earn billions of dollars every year,paving the way for the next wave of prophylactic and therapeutic vaccines already visible on the horizon.

关键词： vaccine virus-like particle immunology

Genetic Based Approach for Optimal Power and Channel Allocation to Enhance D2D Underlaied Cellular Network Capacity in 5G

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2022年第8期72卷 3751-3762页

作者： Ahmed.A.Rosas mona Shokair M.I.Dessouky Department of Electronics and Electrical Communication Engineering Faculty of Electronic EngineeringMenoufia UniversityMenouf32952Egypt

With the obvious throughput shortage in traditional cellular radio networks,Device-to-Device(D2D)communications has gained a lot of attention to improve the utilization,capacity and channel performance of nextgeneration *** this paper,we study a joint consideration of power and channel allocation based on genetic algorithm as a promising direction to expand the overall network capacity for D2D underlaied cellular *** genetic based algorithm targets allocating more suitable channels to D2D users and finding the optimal transmit powers for all D2D links and cellular users efficiently,aiming to maximize the overall system throughput of D2D underlaied cellular network with minimum interference level,while satisfying the required quality of service QoS of each *** simulation results show that our proposed approach has an advantage in terms of maximizing the overall system utilization than fixed,random,BAT algorithm(BA)and Particle Swarm Optimization(PSO)based power allocation schemes.

关键词： 5G D2D communication spectrum allocation power allocation genetic algorithm optimization BAT-optimization particle swarm optimization

Massively parallel universal linear transformations using a wavelength-multiplexed diffractive optical network

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advanced Photonics 2023年第1期5卷 27-49页

作者： Jingxi Li Tianyi Gan Bijie Bai Yi Luo mona Jarrahi Aydogan Ozcan University of California Electrical and Computer Engineering DepartmentLos AngelesCaliforniaUnited States University of California Bioengineering DepartmentLos AngelesCaliforniaUnited States University of California California NanoSystems InstituteLos AngelesCaliforniaUnited States

Large-scale linear operations are the cornerstone for performing complex computational *** optical computing to perform linear transformations offers potential advantages in terms of speed,parallelism,and ***,the design of successive spatially engineered diffractive surfaces forming an optical network was demonstrated to perform statistical inference and compute an arbitrary complex-valued linear transformation using narrowband *** report deep-learning-based design of a massively parallel broadband diffractive neural network for all-optically performing a large group of arbitrarily selected,complex-valued linear transformations between an input and output field of view,each with Ni and No pixels,*** broadband diffractive processor is composed of Nw wavelength channels,each of which is uniquely assigned to a distinct target transformation;a large set of arbitrarily selected linear transformations can be individually performed through the same diffractive network at different illumination wavelengths,either simultaneously or sequentially(wavelength scanning).We demonstrate that such a broadband diffractive network,regardless of its material dispersion,can successfully approximate Nw unique complex-valued linear transforms with a negligible error when the number of diffractive neurons(N)in its design is≥*** further report that the spectral multiplexing capability can be increased by increasing N;our numerical analyses confirm these conclusions for Nw>180 and indicate that it can further increase to Nw∼2000,depending on the upper bound of the approximation *** parallel,wavelength-multiplexed diffractive networks will be useful for designing highthroughput intelligent machine-vision systems and hyperspectral processors that can perform statistical inference and analyze objects/scenes with unique spectral properties.

关键词： optical neural network deep learning diffractive optical network wavelength multiplexing optical computing

Optical information transfer through random unknown diffusers using electronic encoding and diffractive decoding

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

先进光子学(英文) 2023年第4期5卷 85-99页

作者： Yuhang Li Tianyi Gan Bijie Bai Cagatay Isıl mona Jarrahi Aydogan Ozcan University of California Department of Electrical and Computer EngineeringLos AngelesCaliforniaUnited States University of California Department of BioengineeringLos AngelesCaliforniaUnited States University of California California NanoSystems InstituteLos AngelesCaliforniaUnited States

Free-space optical information transfer through diffusive media is critical in many applications, such as biomedical devices and optical communication, but remains challenging due to random, unknown perturbations in the optical path. We demonstrate an optical diffractive decoder with electronic encoding to accurately transfer the optical information of interest, corresponding to, e.g., any arbitrary input object or message, through unknown random phase diffusers along the optical path. This hybrid electronic-optical model, trained using supervised learning, comprises a convolutional neural network-based electronic encoder and successive passive diffractive layers that are jointly optimized. After their joint training using deep learning,our hybrid model can transfer optical information through unknown phase diffusers, demonstrating generalization to new random diffusers never seen before. The resulting electronic-encoder and optical-decoder model was experimentally validated using a 3D-printed diffractive network that axially spans <70λ, whereλ = 0.75 mm is the illumination wavelength in the terahertz spectrum, carrying the desired optical information through random unknown diffusers. The presented framework can be physically scaled to operate at different parts of the electromagnetic spectrum, without retraining its components, and would offer low-power and compact solutions for optical information transfer in free space through unknown random diffusive media.

关键词： optical information transfer electronic encoding optical decoder diffractive neural network diffusers