检索结果-南通市图书馆

Secure Channel Estimation Using Norm Estimation Model for 5G Next Generation Wireless Networks

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 2025年第1期82卷 1151-1169页

作者： Khalil Ullah Song Jian muhammad Naeem Ul Hassan Suliman Khan Mohammad Babar Arshad ahmad Shafiq ahmad Faculty of Information Engineering and Automation Kunming University of Science and TechnologyKunming650500China Department of Computer Science Abbottabad University of Science and TechnologyHavelianAbbottabad22500Pakistan Department of Computing and Electronics Engineering Middle East CollegeMuscat124Oman Department of CS&IT Pak-Austria Fachhochschule Institute of Applied Sciences and Technology MangHaripur22621Pakistan Industrial Engineering Department College of EngineeringKing Saud UniversityRiyadh11421Saudi Arabia

The emergence of next generation networks(NextG),including 5G and beyond,is reshaping the technological landscape of cellular and mobile *** networks are sufficiently scaled to interconnect billions of users and *** in academia and industry are focusing on technological advancements to achieve highspeed transmission,cell planning,and latency reduction to facilitate emerging applications such as virtual reality,the metaverse,smart cities,smart health,and autonomous *** continuously improves its network functionality to support these *** input multiple output(MIMO)technology offers spectral efficiency,dependability,and overall performance in *** article proposes a secure channel estimation technique in MIMO topology using a norm-estimation model to provide comprehensive insights into protecting NextG network components against adversarial *** technique aims to create long-lasting and secure NextG networks using this extended *** viability of MIMO applications and modern AI-driven methodologies to combat cybersecurity threats are explored in this ***,the proposed model demonstrates high performance in terms of reliability and accuracy,with a 20%reduction in the MalOut-RealOut-Diff metric compared to existing state-of-the-art techniques.

关键词： Next generation networks massive mimo communication network artificial intelligence 5G adversarial attacks channel estimation information security

Biochar as a Climate-Smart Agricultural Practice: Reducing Greenhouse Gas Emissions and Promoting Sustainable Farming

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Phyton-International Journal of Experimental Botany 2025年第1期94卷 65-99页

作者： muhammad Nazim Abdul Ghafoor Abida Hussain Mehwish Tabassum Aamir Nawaz muhammad ahmad Murad muhammad Muqarrab Ali State Key Laboratory of Desert and Oasis Ecology Key Laboratory of Ecological Safety and Sustainable Development in Arid LandsXinjiang Institute of Ecology and GeographyChinese Academy of SciencesUrumqi830011China University of Chinese Academy of Sciences Beijing100049China Center for Water and Environmental Studies College of Agricultural and Food SciencesKing Faisal UniversityAl-Ahsa31982Saudi Arabia Department of Climate Change Faculty of Agriculture and Environmental SciencesMuhammad Nawaz Shareef University of AgricultureMultan66000Pakistan Department of Botany Division of Science and Technology University of EducationLahore54000Pakistan Institute of Chemistry Faculty of Chemical and Biological SciencesThe Islamia University of BahawalpurBahawalpur63100Pakistan Department of Agronomy University of Agriculture FaisalabadFaisalabad38040Pakistan

In recent years, the world has faced rising global temperatures, accumulative pollution, and energy crises, stimulating scientists worldwide to strive for eco-friendly and cost-effective solutions. Biochar has materialized as a favorable tool for environmental remediation, indicating efficacy as an efficient sorbent substance for both inorganic and organic pollutants in environmental field. These unique properties exclude improved surface functionality, porous morphology, large specific surface area (SSA), cation exchange capacity (CEC), robust adsorption capabilities, environmental stability, and embedded micronutrients. Biochar exhibited potential characteristics for environmental oversight, greenhouse gas (GHG) emission reduction, and soil fertility improvement. This review explores the impact of fundamental factors such as retention time, pyrolysis temperature, gas flow rate, and reactor design on biochar yield and properties. Collected data revealed the various applications of biochar, ranging from waste management and construction materials to the adsorptive removal of hydrocarbon lubricants from aqueous media, contaminant immobilization, and carbon sequestration. It has played mostly a significant share in climate change mitigation and an important role in soil amendments. Biochar improves soil improvement by increasing water retention (10%–30%), carbon sequestration, soil surface functionality, and providing high surface area with chemical stability. The assessment also reports the prospects and contests associated with biochar application uses in various agriculture cropping ecosystems. Inclusive, this review highlights the multifaceted characteristics of biochar as an adjustable on top of a sustainable solution addressing greenhouse gas emission, carbon sequestration, and environmental stresses. However, further research is needed to understand its long-term impacts and optimal applications fully.

关键词： Agro-ecology biochar carbon storage greenhouse gas reduction sustainable agriculture

Structural,dielectric and magnetic properties of terbium doped strontium spinel ferrite（SrFe2O4） synthesized by sol-gel method

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Rare Earths 2025年第2期43卷 337-344页

作者： Rifat Shaheen Hafeez Ullah M.M.Moharam ahmad M.Saeedi Ebraheem Abdu Musad Saleh muhammad Ijaz Adel A.El-Zahhar Gamil A.A.M.Al-Hazmi Sana Ullah Asif Hafiz muhammad Tahir Institute of Physics Gomal University Department of Chemistry College of Arts and SciencesPrince Sattam Bin Abdulaziz University Chemical and Electrochemical Processing Department Central Metallurgical Research and Development Institute (CMRDI) Department of Physics Faculty of Applied ScienceUmm AL-Qura University Department of Chemistry College of ScienceKing Khalid University School of Materials and Energy Yunnan University Department of Physics Govt. Graduate College Taunsa

In this research work,sol-gel technique was employed to prepare the strontium based spinel ferrite nanoparticles（SrFe2O4） with different ratios of terbium（Tb）.Different characterization techniques were used to investigate the structural,morphological,dielectric and magnetic properties of the prepared samples.X-ray diffraction（XRD） result suggests that face-centered cube spinel nanocrystalline structure is *** size of the SrFe2O4decreases with rising of Tb *** morphology,shape and size of the SrFe2O4were examined by scanning electron microscopy（SEM） analysis and results reveal inhomogeneous distributions of the nanostructures with high *** electrical resistivity of the SrFe2O4increases with rising of Tb ratio,which is confirmed from the cyclic *** is observed that dielectric constant of all the samples decreases with the increasing frequency *** is determined that the dielectric constants of the spinel ferrites are frequency dependent and decrease with increasing the frequency of applied electric *** magnetic behavior of SrFe2O4with different ratios of Tb was studied and it is found that the saturation magnetization values of samples decrease with increase in the substitution of Tb3+at octahedral sites for Fe3+.This decrease in the values of Msis also attributed to spin at surface of nanoparticles.

关键词： Dielectric properties Magnetic properties Rare earths Sol-gel Spinel ferrites Structural properties

Antidepressive and anxiolytic effects of a combination of Saffron and Chamomile in rats and their relationship with serotonin using in vivo methods

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

Journal of Traditional Chinese Medicine 2025年第1期45卷 49-56页

作者： Faiq Amin Saara ahmad muhammad Wasim Asra Khan Fazal Manzoor Arain Zehra Batool Saiqa Tabassum Saima Khaliq Noreen Samad Saida Haider Department of Biological and Biomedical Sciences the Aga Khan University Maternal and Children's Health Research Institute Shunde Women and Children's HospitalGuangdong Medical University Dr.Panjwani Center for Molecular Medicine and Drug Research International Center for Chemical and Biological SciencesUniversity of Karachi Department of Biosciences Shaheed Zulfikar Ali Bhutto Institute of Science and Technology Department of Biochemistry Federal Urdu University of ScienceArts and Technology Department of Biochemistry Bahauddin Zakariya University Department of Biochemistry University of Karachi

OBJECTIVE: To explore the potential of combining natural herbs like chamomile and saffron for the management of anxiety and depression. METHODS: A rodent model of Major Depressive Disorder(MDD) and anxiety, secondary to streptozotocin-induced diabetes mellitus was made. A total of 6 rat groups were chosen; healthy and diseased controls; and diseased test groups of fluoxetine, saffron, chamomile, and combined saffron and chamomile treated(n = 6/group). Activity by forced swim test(FST), elevated plus maze test(EPMT), and correlations with biochemical markers like serum glucose, tryptophan, C-reactive protein(CRP), brain derived neurotrophic factor(BDNF) and 5-hydroxytryptamine 2C receptor(5HT2CR) expression, were assessed at the end of the 3rd week of the treatment. A one-way analysis of variance with a post-hoc Tukey's test was applied. RESULTS: The combined herbal treatment group showed significantly better(P < 0.05) than all other groups in terms of anti-hyperglycemic effect. All treatments improved the CRP levels; however, the combination group was also significantly better than fluoxetine and the individual herb groups. Only the herb groups showed efficacy in the FST with added benefits of the combination group over the healthy controls and similar trends in the EPMT. However, expression of 5HT2CR was repressed while BDNF was elevated through treatment. CONCLUSION: This study shows that in comparison to treatment with a SSRI, and individual herbs, the combination of chamomile and saffron showed overall improved outcomes.

关键词： chamomile crocus depression diabetes mellitus

Enhancing Plant Resilience to Biotic and Abiotic Stresses through Exogenously Applied Nanoparticles:A Comprehensive Review of Effects and Mechanism

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Phyton-International Journal of Experimental Botany 2025年第2期94卷 281-302页

作者： Jalil ahmad muhammad Munir Nashi Alqahtani Tahira Alyas muhammad ahmad Sadia Bashir Fasiha Qurashi Abdul Ghafoor Hassan Ali–Dinar Institute of Vegetables and Flowers Chinese Academy of Agricultural SciencesBeijing100081China Date Palm Research Center of Excellence King Faisal UniversityAl-Ahsa31982Saudi Arabia Department of Food and Nutrition Sciences College of Agricultural and Food SciencesKing Faisal UniversityAl-Ahsa31982Saudi Arabia Department of Botany Lahore College for Women UniversityLahorePunjab54000Pakistan Department of Plant Breeding and Genetics Faculty of Agricultural SciencesGhazi UniversityDera Ghazi Khan32200Pakistan Department of Botany The Woman University Multan66000Pakistan Department of Biological Sciences University of Veterinary and Animal SciencesLahore54000Pakistan Center for Water and Environmental Studies College of Agricultural and Food SciencesKing Faisal UniversityAl-Ahsa31982Saudi Arabia

A steady rise in the overall population is creating an overburden on crops due to their global *** the other hand,given the current climate change and population growth,agricultural practices established during the Green Revolution are no longer ***,innovative practices are the prerequisite of the time struggle with the rising global food *** potential of nanotechnology to reduce the phytotoxic effects of these ecological restrictions has shown significant ***(NPs)typically enhance plant resilience to stressors by fortifying the physical barrier,optimizing photosynthesis,stimulating enzymatic activity for defense,elevating the concentration of stress-resistant compounds,and activating the expression of genes associated with defense *** this review,we thoroughly cover the uptake and translocations of NPs crops and their potential valuable functions in enhancing plant growth and development at different growth ***,we addressed how NPs improve plant resistance to biotic and abiotic ***,this review presents a thorough understanding of the significance of NPs in plants and their prospective value for plant antioxidant and crop development.

关键词： Crop abiotic stress antioxidant biotic stress nanoparticles

YOLOCSP-PEST for Crops Pest Localization and Classification

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 2025年第2期82卷 2373-2388页

作者： Farooq Ali Huma Qayyum Kashif Saleem Iftikhar ahmad muhammad Javed Iqbal Department of Software Engineering University of Engineering and TechnologyTaxila47050Pakistan Department of Computer Science&Engineering College of Applied Studies&Community ServiceKing Saud UniversityRiyadh11362Saudi Arabia Department of Information Technology Faculty of Computing and Information TechnologyKing Abdulaziz UniversityJeddah21589Saudi Arabia Department of Computer Science University of Engineering and TechnologyTaxila47050Pakistan

Preservation of the crops depends on early and accurate detection of pests on crops as they cause several diseases decreasing crop production and quality. Several deep-learning techniques have been applied to overcome the issue of pest detection on crops. We have developed the YOLOCSP-PEST model for Pest localization and classification. With the Cross Stage Partial Network (CSPNET) backbone, the proposed model is a modified version of You Only Look Once Version 7 (YOLOv7) that is intended primarily for pest localization and classification. Our proposed model gives exceptionally good results under conditions that are very challenging for any other comparable models especially conditions where we have issues with the luminance and the orientation of the images. It helps farmers working out on their crops in distant areas to determine any infestation quickly and accurately on their crops which helps in the quality and quantity of the production yield. The model has been trained and tested on 2 datasets namely the IP102 data set and a local crop data set on both of which it has shown exceptional results. It gave us a mean average precision (mAP) of 88.40% along with a precision of 85.55% and a recall of 84.25% on the IP102 dataset meanwhile giving a mAP of 97.18% on the local data set along with a recall of 94.88% and a precision of 97.50%. These findings demonstrate that the proposed model is very effective in detecting real-life scenarios and can help in the production of crops improving the yield quality and quantity at the same time.

关键词： Deep learning classification of pests YOLOCSP-PEST pest detection

Reliable Task Offloading for 6G-Based IoT Applications

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 2025年第2期82卷 2255-2274页

作者： Usman Mahmood Malik muhammad Awais Javed ahmad Naseem Alvi Mohammed Alkhathami Department of Computer Software Engineering National University of Science and Technology(NUST)Islamabad44000Pakistan Department of Electrical and Computer Engineering COMSATS University IslamabadIslamabad45550Pakistan Information Systems Department College of Computer and Information SciencesImam Mohammad Ibn Saud Islamic University(IMSIU)Riyadh11432Saudi Arabia

Fog computing is a key enabling technology of 6G systems as it provides quick and reliable computing,and data storage services which are required for several 6G *** Intelligence(AI)algorithms will be an integral part of 6G systems and efficient task offloading techniques using fog computing will improve their performance and *** this paper,the focus is on the scenario of Partial Offloading of a Task to Multiple Helpers(POMH)in which larger tasks are divided into smaller subtasks and processed in parallel,hence expediting task ***,using POMH presents challenges such as breaking tasks into subtasks and scaling these subtasks based on many interdependent factors to ensure that all subtasks of a task finish simultaneously,preventing resource ***,applying matching theory to POMH scenarios results in dynamic preference profiles of helping devices due to changing subtask sizes,resulting in a difficult-to-solve,externalities *** paper introduces a novel many-to-one matching-based algorithm,designed to address the externalities problem and optimize resource allocation within POMH ***,we propose a new time-efficient preference profiling technique that further enhances time optimization in POMH *** performance of the proposed technique is thoroughly evaluated in comparison to alternate baseline schemes,revealing many advantages of the proposed *** simulation findings indisputably show that the proposed matching-based offloading technique outperforms existing methodologies in the literature,yielding a remarkable 52 reduction in task latency,particularly under high workloads.

关键词： 6G IoT task offloading fog computing

PtCu dendroframe octahedrons:Enhancing peroxidase-like activity and antibacterial efficiency through structural evolution

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2025年第1期18卷 100-106页

作者： Ri Feng Jiuyi Hu Liangjun Wang Jiayu Xu Jiajia Li Zeeshan ahmad Shaohui Zheng muhammad Farhan Farid Wenjing Liu Faisal Saleem Key Laboratory of Flexible Electronics(KLOFE) Institute of Advanced Materials(IAM)and School of Flexible Electronics(Future Technologies)Nanjing Tech UniversityNanjing 211816China

Nanozymes,which possess enzyme-like catalytic activity,are attractive alternatives to natural *** activity is largely dependent on the structure of the ***,challenges remain in optimizing the structure-activity *** work explores the synthesis and utilization of PtCu nanostructures(NSs),focusing on their peroxidase(POD)-like properties and their potential as antibacterial *** developed PtCu dendrites that transform into unique dendroframe octahedrons(DFOs)and subsequently stabilize into solid octahedrons with unusual growth *** intermediate DFO,showed higher POD-like activity in comparison to other shapes of PtCu *** DFOs also have the better ability to consume glutathione,thus enhancing their sterilization ***,we demonstrate the effectiveness of these PtCu DFOs as powerful antibacterial *** work provides valuable information on shape dependent activities of PtCu NSs in the field of biomedicine.

关键词： nanozymes antibacterials peroxidase PtCu dendroframe octahedrons dendrites

Therapeutic potential of Carum carvi in depression,memory loss,and hippocampal sclerosis reversal in temporal lobe epilepsy

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Traditional Medicine Research 2025年第3期10卷 1-7页

作者： muhammad Wasim Syeda Arfa Mairaj Hasan Salman Siddiqi Mahwish Fatima Saara ahmad Fazal Manzoor Arain Department of Biological and Biomedical Sciences The Aga Khan UniversityKarachi 74800Pakistan Maternal and Children's Health Research Institute Shunde Women and Children's HospitalGuangdong Medical UniversityFoshan 528300China

Background:Epilepsy is a disease characterized by unprovoked seizures,and it affects around 70 million people *** treatment is ineffective in one third of all epilepsy *** Lobe Epilepsy with Hippocampal Sclerosis(TLE-HS)is the most drug-resistant form of epilepsy,and it also impacts physical,mental,and psychological well-being of *** carvi extract has demonstrated anti-convulsant,anti-depressant,and anxiolytic *** study was designed to investigate if Carum carvi extract can alleviate depression and memory loss symptoms in a TLE-HS animal ***:Male Sprague Dawley rats were used to create a model of TLE-HS and Carum carvi extract treatment,along with appropriate controls,was used to test the efficacy of this herbal extract in reducing the symptoms of depression and memory ***:Forced swim test showed that Carum carvi extract treated TLE-HS rats resulted in significant improvement of the symptoms of ***,novel object recognition test showed that memory improvement did not ***:Depression significantly impacts the quality of life in TLE-HS patients,and this study has shown that Carum carvi extract should be explored further as an adjuvant treatment for TLE-HS patients to improve their quality of life.

关键词： epilepsy Carum carvi depression memory loss hippocampal sclerosis