Kuwait Journal of Science最新文献_第6页

Leveraging airport CCTV footage through video understanding techniques for visibility prediction 利用机场闭路电视录像，通过视频理解技术进行能见度预测

IF 1.2 4区综合性期刊

Kuwait Journal of Science Pub Date : 2026-01-01 Epub Date: 2025-07-18 DOI: 10.1016/j.kjs.2025.100470

Zeonlung Pun , Xinyu Tian , Shan Gao

{"title":"Leveraging airport CCTV footage through video understanding techniques for visibility prediction","authors":"Zeonlung Pun , Xinyu Tian , Shan Gao","doi":"10.1016/j.kjs.2025.100470","DOIUrl":"10.1016/j.kjs.2025.100470","url":null,"abstract":"<div><div>Accurate atmospheric visibility prediction is critical for enhancing airport safety, especially under adverse weather conditions. However, existing visibility prediction methods predominantly rely on single-image analysis, using either traditional image processing techniques or deep learning models, which often fail to fully capture the dynamic and temporal characteristics inherent in video data. In this study, we explore various video understanding models for visibility prediction, achieving promising results and pioneering the use of video understanding techniques in this domain. Unlike traditional static image-based methods, our proposed three-stream network model integrates spatial information from individual frames, motion dynamics through optical flow, and key reference points extracted via SIFT (scale-invariant feature transform) descriptors. This enables the model to capture both short-term and long-term environmental changes. Experimental results show that our three-stream network significantly outperforms single-frame and image-based models in predicting <span><math><mrow><mi>R</mi><mi>V</mi><mi>R</mi><mtext>_</mtext><mn>1</mn><mi>A</mi></mrow></math></span> (average runway visibility range of one minute). Our model achieves an <span><math><msup><mrow><mi>R</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span> mean of 0.896 and an accuracy mean of 0.860 on the test set, substantially outperforming traditional methods. These results not only demonstrate the superior performance of our approach in real-world scenarios but also highlight the potential of video understanding techniques for airport safety monitoring applications.</div></div>","PeriodicalId":17848,"journal":{"name":"Kuwait Journal of Science","volume":"53 1","pages":"Article 100470"},"PeriodicalIF":1.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144686607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exact and approximate solutions of the fractional dynamical system via transform techniques 用变换技术求分数阶动力系统的精确和近似解

IF 1.1 4区综合性期刊

Kuwait Journal of Science Pub Date : 2026-01-01 Epub Date: 2025-08-13 DOI: 10.1016/j.kjs.2025.100485

Maalee Almheidat , Azzh Saad Alshehry , Abdulkafi Mohammed Saeed , Musaad S. Aldhabani , Ahmad Shafee

引用次数: 0

Exploring new probability density functions related to Brownian local time 探索与布朗本地时间相关的新的概率密度函数

IF 1.1 4区综合性期刊

Kuwait Journal of Science Pub Date : 2026-01-01 Epub Date: 2025-10-18 DOI: 10.1016/j.kjs.2025.100507

Omar Allaoui , Aissa Sghir , Mohamed Mellouk , Mhamed Eddahbi

{"title":"Exploring new probability density functions related to Brownian local time","authors":"Omar Allaoui , Aissa Sghir , Mohamed Mellouk , Mhamed Eddahbi","doi":"10.1016/j.kjs.2025.100507","DOIUrl":"10.1016/j.kjs.2025.100507","url":null,"abstract":"<div><div>This work introduces a new family of probability density functions constructed from <span><math><mrow><mi>E</mi><mrow><mo>[</mo><msup><mrow><mi>L</mi></mrow><mrow><mi>B</mi></mrow></msup><mrow><mo>(</mo><mn>1</mn><mo>,</mo><mi>x</mi><mo>)</mo></mrow><mo>]</mo></mrow></mrow></math></span>, the expectation of the Brownian local time <span><math><mrow><msup><mrow><mi>L</mi></mrow><mrow><mi>B</mi></mrow></msup><mrow><mo>(</mo><mn>1</mn><mo>,</mo><mi>x</mi><mo>)</mo></mrow></mrow></math></span> at time one. The proposed framework builds probabilistic models directly from local time - a pathwise quantity rarely exploited in density construction - thereby offering an original perspective on stochastic analysis. Links are established with the standard normal distribution <span><math><mrow><mi>N</mi><mrow><mo>(</mo><mn>0</mn><mo>,</mo><mn>1</mn><mo>)</mo></mrow></mrow></math></span> and several gamma distributions. Cumulative distribution functions and characteristic functions are derived and their moments compared to those of <span><math><mrow><mi>N</mi><mrow><mo>(</mo><mn>0</mn><mo>,</mo><mn>1</mn><mo>)</mo></mrow></mrow></math></span>. The occupation density formula provides the central theoretical foundation, connecting the sample-path behavior of Brownian motion to its probabilistic structure. Motivation arises from the observation that the law of any integrable random variable <span><math><mi>Y</mi></math></span> is completely characterized by the function <span><math><mrow><mi>G</mi><mrow><mo>(</mo><mi>x</mi><mo>)</mo></mrow><mo>=</mo><mi>E</mi><mrow><mo>[</mo><msup><mrow><mrow><mo>(</mo><mi>Y</mi><mo>−</mo><mi>x</mi><mo>)</mo></mrow></mrow><mrow><mo>+</mo></mrow></msup><mo>]</mo></mrow></mrow></math></span>. The resulting methodology enriches the interface between stochastic process theory and classical probability, with potential applications in quantitative finance, statistical physics, and the modeling of time-dependent random phenomena.</div></div>","PeriodicalId":17848,"journal":{"name":"Kuwait Journal of Science","volume":"53 1","pages":"Article 100507"},"PeriodicalIF":1.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145415940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cilia-assisted flow for the Johnson–Segalman fluid inside a convergent complex wavy passage with the magnetic field, hall effect, and porous medium 具有磁场、霍尔效应和多孔介质的复杂波状通道中Johnson-Segalman流体的纤毛辅助流动

IF 1.1 4区综合性期刊

Kuwait Journal of Science Pub Date : 2026-01-01 Epub Date: 2025-07-28 DOI: 10.1016/j.kjs.2025.100480

Muhammad Waris Saeed Khan , Zeeshan Asghar , Wasfi Shatanawi , Muhammad Asif Gondal

{"title":"Cilia-assisted flow for the Johnson–Segalman fluid inside a convergent complex wavy passage with the magnetic field, hall effect, and porous medium","authors":"Muhammad Waris Saeed Khan , Zeeshan Asghar , Wasfi Shatanawi , Muhammad Asif Gondal","doi":"10.1016/j.kjs.2025.100480","DOIUrl":"10.1016/j.kjs.2025.100480","url":null,"abstract":"<div><div>This study investigates the cilia-driven flow of a Johnson–Segalman (J–S) non-Newtonian fluid through a two-dimensional converging channel under the influence of a vertically applied magnetic field. The problem is motivated by its relevance to biological fluid transport and the design of bio-inspired microfluidic devices. Key physical effects such as the Hall current, magnetic field interaction, and porous medium resistance are incorporated to reflect realistic conditions found in physiological and industrial settings. The governing equations, derived under the assumptions of low Reynolds number and long wavelength approximations, are numerically solved using the bvp4c method. The results reveal that the interplay between geometric convergence, complex ciliary wall undulations, magnetic forces, and Hall currents significantly alters the fluid's axial velocity, pressure gradient, and shear stress distributions. In particular, increases in the Darcy number and Hall parameter enhance fluid transport, while stronger magnetic fields and higher wall slip lengths tend to suppress flow. The novelty of this work lies in its comprehensive coupling of cilia-induced transport with Hall magnetohydrodynamics in a converging porous duct, an area scarcely explored in existing literature. These insights offer potential applications in optimizing next-generation microfluidic designs, peristaltic transport systems, and bio-mimetic pumping technologies.</div></div>","PeriodicalId":17848,"journal":{"name":"Kuwait Journal of Science","volume":"53 1","pages":"Article 100480"},"PeriodicalIF":1.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144724754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimizing neutron-gamma discrimination in scintillation detectors using Tucker decomposition 利用Tucker分解优化闪烁探测器中中子-伽马识别

IF 1.1 4区综合性期刊

Kuwait Journal of Science Pub Date : 2026-01-01 Epub Date: 2025-11-10 DOI: 10.1016/j.kjs.2025.100511

Imane Ahnouz , Hanan Arahmane , Rajaa Sebihi

{"title":"Optimizing neutron-gamma discrimination in scintillation detectors using Tucker decomposition","authors":"Imane Ahnouz , Hanan Arahmane , Rajaa Sebihi","doi":"10.1016/j.kjs.2025.100511","DOIUrl":"10.1016/j.kjs.2025.100511","url":null,"abstract":"<div><div>Neutron-gamma discrimination is essential for applications in radiation monitoring and nuclear safety. Conventional methods often face challenges related to complex signal processing and experimental constraints. This study presents fast and accurate methods for signal separation based on multiway blind source separation (MBSS) and sequentially truncated multilinear singular value decomposition (ST-MLSVD), both leveraging Tucker decomposition. These methods are applied to mixed signals acquired from scintillator detectors and evaluated using the fit parameter, mean signal-to-interference ratio (meanSIR), and correlation coefficients for source characterization. Results show that meanSIR values for the first two modes range from <span><math><mrow><mn>189.3083</mn><mspace></mspace><mtext>dB</mtext></mrow></math></span> to <span><math><mrow><mn>270.0128</mn><mspace></mspace><mtext>dB</mtext></mrow></math></span>, and from <span><math><mrow><mn>63.3614</mn><mspace></mspace><mtext>dB</mtext></mrow></math></span> to <span><math><mrow><mn>119.1609</mn><mspace></mspace><mtext>dB</mtext></mrow></math></span> for the third mode. Correlation coefficients between each mode component and pure neutron or gamma reference signals range from <span><math><mrow><mn>0.66</mn></mrow></math></span> and <span><math><mrow><mn>0.99</mn></mrow></math></span>, indicating strong signal alignment. Both MBSS and ST-MLSVD demonstrate high discrimination performance, with ST-MLSVD notably offering improved computational efficiency. To further validate the separation quality, K-means clustering was employed, and the figure of merit (FOM) was computed for each method, yielding FOM values <span><math><mrow><mo>≥</mo><mn>3.17</mn></mrow></math></span>. These findings highlight the reliability and effectiveness of the proposed approaches in neutron–gamma signal discrimination.</div></div>","PeriodicalId":17848,"journal":{"name":"Kuwait Journal of Science","volume":"53 1","pages":"Article 100511"},"PeriodicalIF":1.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145576356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-efficiency multi-band metamaterial absorber for X to Ka band applications 用于X到Ka波段应用的高效多波段超材料吸收体

IF 1.1 4区综合性期刊

Kuwait Journal of Science Pub Date : 2026-01-01 Epub Date: 2025-11-19 DOI: 10.1016/j.kjs.2025.100514

Khalid Saeed Lateef Al-Badri

引用次数: 0

A compact structure of four half-circle resonator metasurfaces for microwave sensing applications 用于微波传感应用的四个半圆谐振腔超表面的紧凑结构

IF 1.2 4区综合性期刊

Kuwait Journal of Science Pub Date : 2026-01-01 Epub Date: 2025-07-16 DOI: 10.1016/j.kjs.2025.100474

Khalid Saeed Lateef Al-Badri , Moayed H. Hameed , Shihab A. Shawkat , Abdulsattar Abdullah Hamad

{"title":"A compact structure of four half-circle resonator metasurfaces for microwave sensing applications","authors":"Khalid Saeed Lateef Al-Badri , Moayed H. Hameed , Shihab A. Shawkat , Abdulsattar Abdullah Hamad","doi":"10.1016/j.kjs.2025.100474","DOIUrl":"10.1016/j.kjs.2025.100474","url":null,"abstract":"<div><div>This work presents a simple and compact quadrilateral half-circle resonator metasurface for microwave sensing applications. The metasurface (MTS) unit cell exhibits carrier resonance surface characteristics for the K-band. It has an excellent absorption response at f<sub>o</sub> = 21.45 GHz and at f<sub>o</sub> = 23.04 GHz, indicating its coherence and efficiency. The proposed unit cell was developed for sensing applications to detect the sensitivity of liquid or solid materials within an electromagnetic simulation environment at K-band. The sensing methods are investigated to determine which is more effective for measuring sensitivity and its potential in microwave sensing. The resonance frequency fluctuates based on permittivity and refractive index. The MTS unit cell amplifies this resonance using electric field intensity. The measured results demonstrate that the proposed metasurface has excellent sensitivity, a high Q-factor (Q > 55), and a strong Figure of Merit (FoM). The good sensitivity, Q-factor, and FoM results indicate that the proposed MTS is a viable solution for microwave sensing applications.</div></div>","PeriodicalId":17848,"journal":{"name":"Kuwait Journal of Science","volume":"53 1","pages":"Article 100474"},"PeriodicalIF":1.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144654519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluating soil and ecological factors influencing wildlife species diversity in Kuwait 评价影响科威特野生动物物种多样性的土壤和生态因素

IF 1.1 4区综合性期刊

Kuwait Journal of Science Pub Date : 2026-01-01 Epub Date: 2025-12-09 DOI: 10.1016/j.kjs.2025.100521

Matrah Abdulrazaq Al-Mutairi

{"title":"Evaluating soil and ecological factors influencing wildlife species diversity in Kuwait","authors":"Matrah Abdulrazaq Al-Mutairi","doi":"10.1016/j.kjs.2025.100521","DOIUrl":"10.1016/j.kjs.2025.100521","url":null,"abstract":"<div><div>In arid environments like Kuwait, biodiversity is influenced by a complex interaction of ecological factors, but there is a notable lack of research focusing on how soil and plant diversity specifically affect wildlife. This research aims to show how variations in environmental heterogeneity, particularly in plant diversity and soil characteristics, influence wildlife species diversity in the Kabd Region of Kuwait. The field surveys were conducted in 36 plots, analyzing soil properties like texture, pH, phosphorus availability, and organic content. Plant diversity was assessed using quadrat sampling, while wildlife species were monitored through pitfall traps, visual surveys, and acoustic detectors. Statistical analysis, correlation, and regression were used to assess the interconnections between ecological factors and biodiversity indicators. This research has shown positive correlations between sand content in soil and both plant and wildlife diversity. The regression models identified three native plant species, <em>Moltkiopsis ciliata</em>, <em>Filago pyramidata</em>, and <em>Launaea mucronata,</em> as a primary factor to wildlife presence, specifically <em>Blaps kollari.</em> This result highlights the importance of soil health factors, its conditions, and native plant species in sustaining and protecting wildlife species diversity in arid environments. Since the three species are all indigenous to Kuwait, their preservation is very important in terms of the stability of the ecosystem and resiliency in biodiversity in the desert conditions.</div></div>","PeriodicalId":17848,"journal":{"name":"Kuwait Journal of Science","volume":"53 1","pages":"Article 100521"},"PeriodicalIF":1.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145839260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Professionalism conduct on social networks before and after COVID-19 for healthcare practitioners 新型冠状病毒肺炎前后医护人员在社交网络上的职业操守

IF 1.1 4区综合性期刊

Kuwait Journal of Science Pub Date : 2026-01-01 Epub Date: 2025-11-25 DOI: 10.1016/j.kjs.2025.100513

Fatemah Husain

{"title":"Professionalism conduct on social networks before and after COVID-19 for healthcare practitioners","authors":"Fatemah Husain","doi":"10.1016/j.kjs.2025.100513","DOIUrl":"10.1016/j.kjs.2025.100513","url":null,"abstract":"<div><div>Social networks have revolutionized numerous activities in daily life, affecting the behavior of professional conduct. Professionals, especially healthcare practitioners, directly impact the health and well-being of community members through online social network sites (SNSs). However, limited studies have considered the use of SNS by healthcare professionals, especially during the Coronavirus disease pandemic (COVID-19). Understanding how healthcare professionals use SNSs is crucial, as it can influence public health communication and education. By studying their SNS interactions, we can gain insight into how information is disseminated and how it impacts patient care and community health outcomes. Furthermore, this knowledge can help develop guidelines to improve the effective and responsible use of SNSs in the medical field. To understand the effect of COVID-19 on the behavior of healthcare professionals in SNSs for medical and healthcare purposes, we conducted a comprehensive survey based on the technology acceptance model (TAM), which is a theory of information systems used to explain how users come to accept and utilize technology. It focuses on two key factors: perceived usefulness (how much a person believes a technology will improve their performance) and perceived ease of use (how easy the technology is to use). We developed a cross-sectional survey covering two samples from Kuwaiti healthcare professionals before and after COVID-19. The results of the study suggest that physicians do not strongly favor using SNS as a healthcare tool, neither before nor after COVID-19. Therefore, it is essential to promote greater awareness of healthcare in the SNS. It is also important to study the needs of healthcare professionals so that they can positively employ SNSs for healthcare.</div></div>","PeriodicalId":17848,"journal":{"name":"Kuwait Journal of Science","volume":"53 1","pages":"Article 100513"},"PeriodicalIF":1.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145614260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A new stochastic compartmental epidemic model driven by a multidimensional stochastic differential equation under a voluntary and imperfect vaccination strategy 非完全自愿接种策略下多维随机微分方程驱动的随机区室流行病模型

IF 1.1 4区综合性期刊

Kuwait Journal of Science Pub Date : 2026-01-01 Epub Date: 2025-07-26 DOI: 10.1016/j.kjs.2025.100473

Benasquar Mohammed , Aissa Sghir , Dr. Said El Idrissi

{"title":"A new stochastic compartmental epidemic model driven by a multidimensional stochastic differential equation under a voluntary and imperfect vaccination strategy","authors":"Benasquar Mohammed , Aissa Sghir , Dr. Said El Idrissi","doi":"10.1016/j.kjs.2025.100473","DOIUrl":"10.1016/j.kjs.2025.100473","url":null,"abstract":"<div><div>This work introduces a novel compartmental epidemic model that integrates both deterministic and stochastic components to capture the dynamics of disease transmission under a voluntary and imperfect vaccination strategy. The model features a nonlinear incidence rate and differentiates between two classes of susceptible individuals: those who opt for vaccination and those who decline it. The deterministic structure is formulated as a system of multidimensional ordinary differential equations. To incorporate environmental fluctuations, the model is extended by introducing stochastic perturbations into the transmission rate via a white noise term, yielding a system of multidimensional stochastic differential equations. The basic reproduction number is derived to establish the conditions under which the disease either dies out or persists. The effects of the vaccination strategy, as well as the model’s sensitivity to parameter variations, are thoroughly analyzed. Furthermore, the existence and uniqueness of solutions are proven, and the model’s equilibria are characterized. Finally, numerical simulations are conducted to illustrate and validate the analytical results.</div></div>","PeriodicalId":17848,"journal":{"name":"Kuwait Journal of Science","volume":"53 1","pages":"Article 100473"},"PeriodicalIF":1.1,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144771417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0