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Vision based intelligent traffic light management system using Faster R‐CNN

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CAAI Transactions on Intelligence Technology 2024年第4期9卷 932-947页

作者： syed Konain Abbas Muhammad Usman Ghani Khan Jia Zhu Raheem Sarwar Naif RAljohani ibrahim AHameed Muhammad Umair Hassan Department of Computer Science and Engineering University of Engineering and TechnologyLahorePakistan Zhejiang Key Laboratory of Intelligent Education Technology and Application Zhejiang Normal UniversityJinhuaChina OTHEM Manchester Metropolitan UniversityManchesterUK Faculty of Computing and Information Technology King Abdulaziz UniversityJeddahSaudi Arabia Department of ICT and Natural Sciences Norwegian University of Science and Technology(NTNU)ÅlesundNorway

Transportation systems primarily depend on vehicular flow on roads. Developed coun-tries have shifted towards automated signal control, which manages and updates signal synchronisation automatically. In contrast, traffic in underdeveloped countries is mainly governed by manual traffic light systems. These existing manual systems lead to numerous issues, wasting substantial resources such as time, energy, and fuel, as they cannot make real‐time decisions. In this work, we propose an algorithm to determine traffic signal durations based on real‐time vehicle density, obtained from live closed circuit television camera feeds adjacent to traffic signals. The algorithm automates the traffic light system, making decisions based on vehicle density and employing Faster R‐CNN for vehicle detection. Additionally, we have created a local dataset from live streams of Punjab Safe City cameras in collaboration with the local police authority. The proposed algorithm achieves a class accuracy of 96.6% and a vehicle detection accuracy of 95.7%. Across both day and night modes, our proposed method maintains an average precision, recall, F1 score, and vehicle detection accuracy of 0.94, 0.98, 0.96 and 0.95, respectively. Our proposed work surpasses all evaluation metrics compared to state‐of‐the‐art methodologies.

关键词： access control artificial intelligence computer vision intelligent control

Enhancing Mild Cognitive Impairment Detection through Efficient Magnetic Resonance Image Analysis

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Computers, Materials & Continua 2024年第8期80卷 2081-2098页

作者： Atif Mehmood Zhonglong Zheng Rizwan Khan Ahmad Al Smadi Farah Shahid Shahid Iqbal Mutasem K.Alsmadi Yazeed Yasin Ghadi syed Aziz Shah Mostafa M.ibrahim Department of Computer Science and Technology Zhejiang Normal UniversityJinhua321002China Zhejiang Institute of Photoelectronics&Zhejiang Institute for Advanced Light Source Zhejiang Normal UniversityJinhua321004China Department of Data Science and Artificial Intelligence Zarqa UniversityZarqa13100Jordan School of Chemical and Environmental Engineering College of ChemistryChemical Engineering andMaterials ScienceSoochow UniversitySuzhou215123China Department of Management Information Systems College of Applied Studies and Community ServiceImam Abdulrahman Bin Faisal UniversityDammam32244Saudi Arabia Department of Computer Science Al Ain UniversityAbu Dhabi999041United Arab Emirates Department of Electrical Engineering Faculty of EngineeringMinia UniversityMinia61519Egypt Healthcare Technology and Innovation Theme Faculty Research Centre for Intelligent HealthcareCoventry UniversityCoventryCV48BWUK

Neuroimaging has emerged over the last few decades as a crucial tool in diagnosing Alzheimer’s disease(AD).Mild cognitive impairment(MCI)is a condition that falls between the spectrum of normal cognitive function and ***,previous studies have mainly used handcrafted features to classify MCI,AD,and normal control(NC)*** paper focuses on using gray matter(GM)scans obtained through magnetic resonance imaging(MRI)for the diagnosis of individuals with MCI,AD,and *** improve classification performance,we developed two transfer learning strategies with data augmentation(i.e.,shear range,rotation,zoom range,channel shift).The first approach is a deep Siamese network(DSN),and the second approach involves using a cross-domain strategy with customized *** performed experiments on the Alzheimer’s Disease Neuroimaging Initiative(ADNI)dataset to evaluate the performance of our proposed *** experimental results demonstrate superior performance in classifying the three binary classification tasks:NC ***,NC ***,and MCI ***,we achieved a classification accuracy of 97.68%,94.25%,and 92.18%for the three cases,*** study proposes two transfer learning strategies with data augmentation to accurately diagnose MCI,AD,and normal control individuals using GM *** findings provide promising results for future research and clinical applications in the early detection and diagnosis of AD.

关键词： Alzheimer’s disease mild cognitive impairment normal control transfer learning classification augmentation

Cardiovascular risk factors among older persons with cognitive frailty in middle income country

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World Journal of Clinical Cases 2024年第17期12卷 3076-3085页

作者： Azianah Mohamad ibrahim Devinder Kaur Ajit Singh Arimi Fitri Mat Ludin Noor ibrahim Mohamed Sakian nurul Fatin Malek Rivan Suzana Shahar Centre for Healthy Ageing and Wellness Faculty of Health SciencesUniversiti Kebangsaan MalaysiaWilayah Persekutuan Kuala Lumpur 50300Malaysia Basic Medical Sciences University of CyberjayaSelangor Darul EhsanMalaysia 63000Malaysia

BACKGROUND Cognitive frailty,characterized by the coexistence of cognitive impairment and physical frailty,represents a multifaceted challenge in the aging *** role of cardiovascular risk factors in this complex interplay is not yet fully *** To investigate the relationships between cardiovascular risk factors and older persons with cognitive frailty by pooling data from two cohorts of studies in *** A comprehensive approach was employed,with a total of 512 communitydwelling older persons aged 60 years and above,involving two cohorts of older persons from previous *** related to cardiovascular risks,namely sociodemographic factors,and cardiovascular risk factors,including hypertension,diabetes,hypercholesterolemia,anthropometric characteristics and biochemical profiles,were pooled for *** frailty was defined based on the Clinical Dementia Rating scale and Fried frailty *** risk was determined using Framingham risk *** analyses were conducted using SPSS version *** Of the study participants,46.3%exhibited cognitive *** risk factors including hypertension(OR:1.60;95%CI:1.12-2.30),low fat-free mass(OR:0.96;95%CI:0.94-0.98),high percentage body fat(OR:1.04;95%CI:1.02-1.06),high waist circumference(OR:1.02;95%CI:1.01-1.04),high fasting blood glucose(OR:1.64;95%CI:1.11-2.43),high Framingham risk score(OR:1.65;95%CI:1.17-2.31),together with sociodemographic factors,i.e.,being single(OR 3.38;95%CI:2.26-5.05)and low household income(OR 2.18;95%CI:1.44-3.30)were found to be associated with cognitive *** Cardiovascular-risk specific risk factors and sociodemographic factors were associated with risk of cognitive frailty,a prodromal stage of *** identification and management of cardiovascular risk factors,particularly among specific group of the population might mitigate the risk of cognitive frailty,hence preventing dementia.

关键词： Cognitive frailty Older persons Cardiovascular risk factors Frailty Mild cognitive impairment

Altered Redox Status in Erythrocytes From Hypertensive Subjects: Effect of(-)Epicatechin

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生物化学与生物物理进展 2005年第3期32卷 235-238页

作者： syed ibrahim RIZVI NAVNEET KUMAR Department of Biochemistry University of Allahabad Allahabad India-211002Department of Biochemistry University of Allahabad Allahabad India-211002

Hypertension is a major problem worldwide. There is much evidence to suggest that reactive oxygen species (ROS) radical may play a role in the development of organ damage associated with cardiovascular disease and hypertension. (-)Epicatechin, a member of tea catechins belonging to flavonoid group, is known to be a potent anti-oxidant. The study has been undertaken to evaluate the effect of (-)epicatechin on markers of oxidative stress: reduced glutathione (GSH) and membrane sulfhydryl (-SH) groups in erythrocytes from hypertensive patients. The effect of (-)epicatechin was also compared with a known anti-oxidant L-ascorbic acid. The erythrocyte intracellular GSH content and membrane -SH group content were significantly (P<0.01) decreased in hypertensive subjects. In vitro incubation with (-)epicatechin caused an increase in GSH and -SH content, the effect was more pronounced in hypertensive erythrocytes. Similar results were obtained with L-ascorbic acid. The observed decrease in the level of GSH and -SH groups in hypertension is an indicator of oxidative stress condition. Observation of an increase in red cell GSH content and the protection of membrane -SH group oxidation by (-)epicatechin in hypertensive subjects is a convincing reason to suggest that high dietary intake of foods rich in catechins may help to reduce oxidative stress and concomitant free radical damage in hypertensive patients.

关键词：红血球氧化还原剂高血压表儿茶酸氧化损伤

Synthesis of activated carbon from spent tea leaves for aspirin removal

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Chinese Journal of Chemical Engineering 2018年第5期26卷 1003-1011页

作者： Syieluing Wong Yowjeng Lee Norzita Ngadi ibrahim Mohammed Inuwa nurul Balqis Mohamed Department of Chemical Engineering Faculty of Chemical and Energy Engineering Universiti Teknologi Malaysia Malaysia Department of Industrial Chemistry Kaduna State University Kaduna Nigeria

Adsorption capacity of activated carbon prepared from spent tea leaves （STL-AC） for the removal of aspirin from aqueous solution was investigated in this study. Preliminary studies have shown that treatment with phosphoric acid （H3PO4） increased removal efficiency of STL-AC. Characterizations on STL-AC revealed excellent textural properties （1200 m2.g-1, 51% mesoporosity）, as well as distinctive surface chemistry （1.08 mmol.g-1 and 0.54 mmol.g-1 for acidic and basic oxygenated groups, pHpzc = 2.02）. Maximum removal efficiency of aspirin observed was 94.28% after 60 rain when the initial concentration was 100 mg.L-1, 0.5 g of adsorbent used, pH 3 and at a temperature of 30 ℃. The adsorption data were well fitted to the Freundlich isotherm model and obeyed the pseudo-second order kinetics model. The adsorption of aspirin onto STL-AC was exothermic in nature （△H = - 13.808 ***-1） and had a negative entropy change, △S （-41.444 ***-1）. A negative Gibbs free energy, △G was obtained indicating feasibility and spontaneity of the adsorption process. The adsorp- tion capacity of △C-STL （178.57 mg.g-1） is considerably high compared to most adsorbents synthesized from various sources, due to the well-defined textural properties coupled with surface chemistry of STL-AC which fa- vors aspirin adsorption. The results demonstrate the potential of STL-AC as aspirin adsorbent.

关键词： Activated carbon Spent tea leaves Aspirin Adsorption Kinetics Isotherm

Buckling of thin-walled beams by a refined theory

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2012年第10期13卷 747-759页

作者： syed Muhammad ibrahim Erasmo CARRERA Marco PETROLO Enrico ZAPPINO Specialty Units for Safety and Preservation of Structures King Saud UniversityRiyadhSaudi Arabia Department of Mechanical and Aerospace Engineering Politecnico di TorinoCorso Duca degli Abruzzi 2410129 TorinoItaly

The buckling of thin-walled structures is presented using the 1D finite element based refined beam theory formulation that permits us to obtain N-order expansions for the three displacement fields over the section *** higher-order models are obtained in the framework of the Carrera unified formulation(CUF).CUF is a hierarchical formulation in which the refined models are obtained with no need for ad hoc *** theories are obtained on the basis of Taylor-type and Lagrange polynomial *** of these theories have been carried out by their applications to studies related to the buckling of various beam structures,like the beams with square cross section,I-section,thin rectangular cross section,and annular *** results obtained match very well with those from commercial finite element softwares with a significantly less computational ***,various types of modes like the bending modes,axial modes,torsional modes,and circumferential shell-type modes are observed.

关键词： Unified beam theory Carrera unified formulation(CUF) Buckling 1D formulation

From pollutant to solution of wastewater pollution: Synthesis of activated carbon from textile sludge for dye adsorption

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Chinese Journal of Chemical Engineering 2018年第4期26卷 870-878页

作者： Syieluing Wong nurul Atiqah Najlaa Yac'cob Norzita Ngadi Onn Hassan ibrahim M.Inuwa Faculty of Chemical and Energy Engineering Universiti Teknologi Malaysia Department of Industrial Chemistry Kaduna State University

Adsorption is an important process in wastewater treatment,and conversion of waste materials to adsorbent offers a solution to high material cost related to the use of commercial activated *** study investigated the adsorption behaviour of Reactive Black 5（RB5）and methylene blue（MB）onto activated carbon produced from textile sludge（TSAC）.The activated carbon was synthesized through chemical activation of precursor followed with carbonization at 650℃ under nitrogen *** of time（0–200 min）,pH（2–10）,temperature（25–60℃）,initial dye concentration（0–200 mg·L^-1）,and adsorbent dosage（0.01–0.15 g）on dye removal efficiency were *** screening revealed that TSAC synthesized via H2SO4activation showed higher adsorption behaviour than TSAC activated by KCl and *** adsorption capacity of TSAC was found to be 11.98 mg·g^-1（RB5）and 13.27 mg·g^-1（MB）,and is dependent on adsorption time and initial dye *** adsorption data for both dyes were well fitted to Freundlich isotherm model which explains the heterogeneous nature of TSAC *** dye adsorption obeyed pseudo-second order kinetic model,thus chemisorption was the controlling *** study reveals potential of textile sludge in removal of dyes from aqueous solution,and further studies are required to establish the applicability of the synthesized adsorbent for the treatment of waste water containing toxic dyes from textile industry.

关键词： Activated carbon Textile sludge Reactive Black 5 Methylene blue Adsorption

Immunomodulatory effects of selected Malaysian plants on the CD18/11a expression and phagocytosis activities of leukocytes

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Asian Pacific Journal of Tropical Biomedicine 2015年第1期5卷 48-53页

作者： nurul Hikmah Harun Abdi Wira Septama ibrahim Jantan School of Biomedicine and Diagnostics Faculty of Medicine and Health SciencesUniversiti Sultan Zainal Abidin21300 Kuala TerengganuTerengganuMalaysia Faculty of Pharmacy University of Sumatera UtaraJalan Tri Dharma No.3MedanSumatera UtaraIndonesia Faculty of Pharmacy University Kebangsaan MalaysiaJalan Raja Muda Abdul Aziz50300 Kuala LumpurMalaysia

Objective:To investigate the effects of 20 methanolic extracts from Malaysian selected plants on CD18/11 a expression and phagocytosis activity of leukocytes using flow cytometry ***:The effects of methanolic extracts on CD18/11 a expression and phagocytosis of leukocytes were measured by labelling the cells with CD18-fluorescein isolhiocyanaie and ingestion labelled with Escherichia coli-fluorescein isothiocyanate and then analyzed using flow ***:About 12 out of 20 methanolic extracts of selected Malaysian medicinal plants significantly(P≤0.05) inhibited the CD18/1 la expression of leukocytes at both concentrations of 6.25 μg/mL and 100 μg/mL in dose dependent *** most active inhibitory was shown in Citrus aurantifolia(Christm.) Swingle and Alpinia galangal(L.) *** dosage 100ug/***,the Orthosiphon aristatus(Blume) Miq(***).showed the highest stimulatory activity at the concentration of 100 μg/*** than that,four plant extracts significantly(P<0.05) rose the phagocytosis activities of leukocytes in dose dependent ***,Annona muricata *** *** showed the highest stimulated activities at the 100 pg/mL ***:The results suggest that methanolic extracts of Cirrus *** gaiangal,*** and Annona muricata are able to modulate innate immune system and can potentially be recognized as therapeutic agents for modulating immune system.

关键词： Selected Malaysian medicinal plants Immunomodulatory effects CD18/11a expression Phagocytosis activity Flow cytometry analysis

Disseminated strongyloidiasis in an immunocompromised host:A case report

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Asian Pacific Journal of Tropical Biomedicine 2017年第6期7卷 587-590页

作者： nurul Suhaiza Hassanudin Zubaidah Abdul Wahab Khalid ibrahim Fadzilah Mohd Nor Microbiology Unit Department of PathologyHospital Sg.Buloh Director Office Hospital Sg.Buloh Microbiology Discipline Faculty of MedicineUniversiti Teknologi MARASg.Buloh CampusJalan Hospital Integrative Pharmacogenomics Institute (iPROMISE) Level 7FF3Universiti Teknologi MARAPuncak Alam Campus

Infections caused by Strongyloides stercoralis(***) in human are generally asymptomatic,however in immunocompromised individual,hyperinfection may develop with dissemination of larvae to extra-intestinal *** diagnosis could be easily missed due to asymptomatic presentation and insufficient exposure towards the infection itself,which may lead to low index of suspicion as a *** this report,a case of a Malaysian male with underlying diabetes mellitus,hypertension,cerebrovascular accident,bullous pemphigus and syndrome of inappropriate antidiuretic hormone secretion who initially complained of generalized body weakness and poor appetite without any history suggestive of sepsis is ***,he developed septicemic shock later,and *** larvae was incidentally found in the tracheal aspirate that was sent to look for acid fast *** of aggressive resuscitation,the patient succumbed due to pulmonary hemorrhage and acute respiratory distress *** was revealed that the current case has alarmed us via incidental finding of *** larvae in the tracheal aspirate,indicating that the importance of the disease should be emphasized in certain parts of the world and population respectively.

关键词： Disseminated strongyloidiasis Immunocompromised host Hyperinfection Strongyloides stercoralis