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Application of artificial intelligence to rock mechanics:An overview

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Journal of Rock Mechanics and Geotechnical Engineering 2021年第1期13卷 248-266页

作者： abiodun Ismail Lawal Sangki Kwon Department of Energy Resources Engineering Inha UniversityYong-Hyun DongNam KuIncheonSouth Korea Department of Mining Engineering Federal University of TechnologyAkureNigeria

Different artificial intelligence(AI)methods have been applied to various aspects of rock mechanics,but the fact that none of these methods have been used as a standard implies that doubt as to their generality and validity still *** this,a literature review of application of AI to the field of rock mechanics is *** studies of the researches published in the top journals relative to the fields of rock mechanics,computer applications in engineering,and the textbooks were *** performances of the AI methods that have been used in rock mechanics applications were *** literature review shows that AI methods have successfully been used to solve various problems in the rock mechanics field and they performed better than the traditional empirical,mathematical or statistical ***,their practical applicability is still an issue of concern as many of the existing AI models require some level of expertise before they can be used,because they are not in the form of tractable mathematical *** some advanced AI methods are still yet to be *** limited availability of dataset for the AI simulations is also identified as a major *** solutions to the identified problems and the possible future research focus were proposed in the study subsequently.

关键词： Artificial intelligence(AI) Rock mechanics Literature review Statistical method

Pre-treatment of mscanthus sinensis with Bacta-sile to aid anaerobic digestion

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International Journal of Agricultural and Biological Engineering 2013年第1期6卷 82-89页

作者： abiodun O.Jegede Centre for Energy Research and Development Obafemi Awolowo UniversityIle-IfeOsunNigeria

The investigation of the biodegradability and methane potential of bacterial pre-treated miscanthus sinensis has been carried *** percent solution of Bacta-sile:A silage promoter was used to pre-treat miscanthus sinensis at 25℃.The anaerobic digestion experiments were carried out at 25℃ and 35℃ in batch *** organic loading rates(OLR)varied between 1.25 g and 7 g in different batch *** results showed that the highest methane concentration was 57% from digester 1 while the lowest methane produced was 38% from digester *** low methane production from digester 3 was attributed to temperature changes and poor organic loading *** pretreatment aided biodegradation of miscanthus at 25℃.Operating temperature of 25℃ had a great effect on digestion experiments resulting to longer required Hydraulic Retention Time(HRT).

关键词： anaerobic digestion methane(CH4) carbon dioxide(CO2) cyanobacteria Hydraulic Retention Time(HRT) Organic Loading Rate(ORL)

Development of mathematically motivated hybrid soft computing models for improved predictions of ultimate bearing capacity of shallow foundations

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Journal of Rock Mechanics and Geotechnical Engineering 2023年第3期15卷 747-759页

作者： abiodun Ismail Lawal Sangki Kwon Department of Energy Resources Engineering Inha UniversityIncheonSouth Korea Department of Mining Engineering Federal University of TechnologyAkureNigeria

Ultimate bearing capacity(UBC)is a key subject in geotechnical/foundation engineering as it determines the limit of loads imposed on the *** most reliable means of determining UBC is through experiment,but it is costly and time-consuming which has led to the development of various models based on the simplified *** outcomes of the models are usually validated with the experimental results,but a large gap usually exists between ***,a model that can give a close prediction of the experimental results is *** study proposes a grasshopper optimization algorithm(GOA)and salp swarm algorithm(SSA)to optimize artificial neural networks(ANNs)using the existing UBC experimental *** performances of the proposed models are evaluated using various statistical *** obtained results are compared with the existing *** proposed models outperformed the existing *** proposed hybrid GOA-ANN and SSA-ANN models are then transformed into mathematical forms that can be incorporated into geotechnical/foundation engineering design codes for accurate UBC measurements.

关键词： Ultimate bearing capacity(UBC) Geotechnics Grasshopper optimization algorithm(GOA) Salp swarm algorithm(SSA) Soft computing(SC)method

Influence of spark plasma sintering on microstructure and wear behaviour of Ti-6Al-4V reinforced with nanosized TiN

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Transactions of Nonferrous Metals Society of China 2018年第1期28卷 47-54页

作者： Oluwasegun Eso falodun Babatunde abiodun OBADELE Samuel Ranti OKE Oladeji IGE Peter Apata OLUBAMBI Moipone Linda LETHABANE Shepherd Willie BHERO Centre for Nanoengineering and Tribocorrosion School of Mining Metallurgy and Chemical Engineering University of Johannesburg Department of Chemical Metallurgical and Materials Engineering Tshwane University of Technology Department of Engineering Metallurgy University of Johannesburg Doornfontein Campus

Ti-6Al-4V/TiN composites were successfully consolidated by spark plasma sintering(SPS).TiN addition to Ti-6Al-4V was varied from1%to5%(volume fraction).The effect of TiN addition on the densification,microstructure,microhardness and wear behaviour of Ti-6Al-4V was *** results showed reduction in sintered density of the compacts from99%to97%with increase in TiN ***,an increase in microhardness value was recorded from HV0.1389to HV0.1488.X-ray diffraction(XRD)analysis showed that the intensity of diffraction peaks of TiN phase in the composites increased also with formation of small amount of secondary Ti2N *** analysis of SPS sintered nanocomposites possessed a refinement ofα/βphase microstructure in Ti-6Al-4V with the presence of uniformly dispersed TiN *** worn surface of the composite showed improved abrasive wear resistance with non-continuous grooves as compared to the sintered Ti-6Al-4V without TiN addition.

关键词： spark plasma sintering Ti-6Al-4V TiN microstructure wear

Metal contamination assessment in the urban stream sediments and tributaries of coastal area southwest Nigeria

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Chinese Journal Of Geochemistry 2015年第3期34卷 431-446页

作者： abiodun M.Odukoya Olumuyiwa Akande Department of Geosciences University of Lagos

A geochemical assessment of the fifty surface stream sediments from Ikorodu Southwest Nigeria was carried out to determine the level of contamination. The sediments were dried, disaggregated and sieved to \75 lm fraction for geochemical analysis, using the aqua-regia digestion technique and inductively coupled plasma mass spectrometry. Major elements showed the following trend Fe [ Al [ Ca [ Na [ Mg [ K [ P [ Ti and were below the average shale concentration, except for Na in one *** from factor and correlation analyses showed two groups of trace elements Ni, Co, Mn, U, Th, Sr, V, La, Cr, Ba,Sc, Ga, Cs, Nb, Rb, Y,Ce and Mo, Pb, Zn, As, Cd, Sb, Sn, Zr,which were from geogenic and anthropogenic sources, respectively. The enrichment factor showed that Cd, Bi, Pt, Mo and Ag were, for all samples, within background concentrations, except those of the Ogun River and the Owode Onirin, which showed significant enrichment of Cd, Zn, Cu,Pb and Ag, depletion to minimal enrichment for Bi, Mo and moderate enrichment for Pt. The contamination degree ranged between 1.25 and 143.79. The highest value was found at Owode Onirin and the lowest, at Igbonla 7. The geoaccumulation index showed that all the stream sediments ranged between practically uncontaminated to moderately to highly contaminated—with Pb, Sn, Zn, Cd, Cu, Cr, Zr and Ba. The potential ecological risk factor and environmental risk index(IER) showed that all of the samples were within the class of low to medium contamination risk, except samples from the Owode Onirin, which fell within the class of very high risk to extremely high risk respectively.

关键词：水系沉积物污染评价尼日利亚沿海地区电感耦合等离子体质谱法西南富集因子分析环境地球化学

Distribution and geochemical significance of dibenzofurans,phenyldibenzofurans and benzo[b]naphthofurans in source rock extracts from Niger Delta basin,Nigeria

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Acta Geochimica 2020年第6期39卷 973-987页

作者： abiodun B.Ogbesejana Oluwasesan M.Bello Department of Applied Chemistry Federal University Dutsin-MaP.M.B.5001Dutsin-MaKatsina StateNigeria

The distribution and geochemical significance of dibenzofurans,phenyldibenzofurans and benzo[b]naptho-furans in source rocks from Niger Delta basin,Nigeria,were investigated by Rock-Eval pyrolysis and gas chro-matography--mass spectrometry(GC--MS).The data obtained from the source rocks evaluation showed that the rock samples contained type 1/III kerogen capable of generating oil and gas and were within immature to early mature *** relative abundance of the Cor,C1-and C2-dibenzofurans range from 1.75%to 29.82%,27.60%to 40.52%and 29.66%to 6889%,*** diben-zofurans were dominated by *** the C1-dibenzofurans,2-+3-methyldibenzofuran was the most abundant in the rock samples while 1-methy ldibenzofuran appeared to be the *** relative abundance of benzo[b]naphtho[1,2-d]furan(1,2]BNF),benzo[b]naph-tha[2,1-d]furan(2.1]BNF)and benzo[b]naphtha[2,3-d]fu-ran([2.3]BNF)in the rock extracts range from 12.01%to 52.58%,32.61%to 75.219%and 10.27%to 52.43%.The wide range of values recorded for the three isomers of benzo[b lnapthofurans in the samples suggest source rocks formed from mixed organic *** the pheny ldibenzofuran isomers,4-pheny ldibenzofuran was the most abundant while 1-phenyldibenzofuran was the *** ratio-1(PhFR-1)and pheny ldibenzofuran ratio-2(PhFR-2)values range from 0.13 to 1.20 and 0.11 to 2.11,*** resuls showed that the relative abundance of PhFR-1 and PhFR-2 increase gradually with increasing burial depth and maturity(VRo≤0.77%,MPI-1≤*** s 443℃),and have a good correlations with calculated vitrinite ***-I and maximum Temperature(Tmax)-This range of values suggested immature to early mature source *** source rocks were found to have shale and coul lithologics and deposited in a lacustrine/fuvial deltaic settings within immature to early mature stages based on the distribution of dibenzofurans,pheny ldiben-zofurans and benzo[b]naphthofurans in the source rock

关键词： Dibenzofurans Benzo[b]napthofurans Source rocks Niger delta Gas chromatography-mass spectrometry

Blast-induced ground vibration prediction in granite quarries:An application of gene expression programming,ANFIS,and sine cosine algorithm optimized ANN

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International Journal of Mining Science and Technology 2021年第2期31卷 265-277页

作者： abiodun Ismail Lawal Sangki Kwon Olaide Sakiru Hammed Musa Adebayo Idris Department of Energy Resources Engineering Inha UniversityIncheon 22212Republic of Korea Department of Mining Engineering Federal University of TechnologyAkureNigeria Department of Physics Federal UniversityOye-EkitiNigeria Division of Mining and Geotechnical Engineering Department of CivilEnvironmental and Natural Resources EngineeringLuleåUniversity of Technology97187 LuleåSweden

Blasting of rocks has intrinsic environmental impacts such as ground vibration,which can interfere with the safety of lives and ***,accurate prediction of the environmental impacts of blasting is imperative as the empirical models are not accurate as evident in the ***,there is need to consider some robust predictive models for accurate prediction *** expression programming(GEP),adaptive neuro-fuzzy inference system(ANFIS),and sine cosine algorithm optimized artificial neural network(SCA-ANN)models are proposed for predicting the blast-initiated ground vibration in five granite *** input parameters into the models are the distance from the point of blasting to the point of measurement(D),the weight of charge per delay(W),rock density(q),and the Schmidt rebound hardness(SRH)value while peak particle velocity(PPV)is the targeted output.100 datasets were used in developing the proposed *** performance of the proposed models was examined using the coefficient of determination(R2)and error *** R2 values obtained for the GEP,ANFIS,and SCA-ANN models are 0.989,0.997,and 0.999,respectively,while their errors are close to *** proposed models are compared with an empirical model and are found to outperform the empirical model.

关键词： Artificial intelligence Blasting Rock density Comminution Environmental impacts Sensitivity analysis

I must eat what I want: A roadblock to type 2 diabetes management

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Journal of Integrative Nursing 2022年第2期4卷 91-96页

作者： Oluwaseyi abiodun AKPOR Samuel Segun ABEGUNDE Olaolorunpo OLORUNFEMI Oluwaseun Oluwafunmilayo abiodun Department of Nursing Science College of Medicine and Health SciencesAfe Babalola UniversityAdo EkitiNigeria Department of Medical Surgical/Adult Health Nursing Federal UniversityOye-EkitiEkiti StateNigeria Department of Nursing Science College of Basic Health ScienceAchievers UniversityOwoOndo StateNigeria

Globally,type 2 diabetes mellitus(T2DM)is considered as one of the most common diseases,which is associated with irreversible risk factors such as age,gene,race,ethnicity,and reversible factors such as diet,physical activity,and *** to dietary regimen is the major factors for rapidly rising incidence of T2DM among developing ***,elevated HbA1c level has also been considered as one of the leading risk factors for developing microvascular and macrovascular *** in the elevated HbA1c level can be achieved through diet management;thus,this study found that improvement in patients’dietary knowledge,attitude toward,and compliance to diet regimen will promote a better control of the *** conclusion,the stakeholders(health-care providers,health facilities,agencies involved in T2DM care)should educate the patients on the importance of dietary modification in the disease ***,there is a need for nurses and other health care professionals to advocate and promote a better holistic management that will encourage patients participation and family involvement in the care.

关键词： Dietary compliance dietary management Roles of family members type 2 diabetes mellitus

Acceptance of COVID-19 vaccine and its related determinants in Nigeria:An online survey

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World Journal of Virology 2024年第4期13卷 89-110页

作者： Eyiuche D Ezigbo Seyi S Enitan Esther N Adejumo abiodun E Durosinmi Richard Y Akele Michael O Dada Grace E Itodo Abah M Idoko Okeoghene M Edafetanure-Ibeh Edwin N Okafor Adedeji A Abdulsalam Oyekan I Oyedoyin Polit U Yelpoji Ogunwola O Opeyemi Ogbuji S Nmesomachi Adesola O Oyekale Chisom B Onyeji Haemostasis and Thrombosis Unit Department of Medical Laboratory SciencesUniversity of NigeriaEnugu CampusEnuguEN 400241Nigeria Department of Medical Laboratory Science School of Public and Allied HealthBabcock UniversityIlishan-RemoOG 121109Nigeria Department of Medical Laboratory Science State HospitalIjebu-OdeOG 120221Nigeria Department of Biomedical Science School of Applied ScienceUniversity of BrightonBrightonES BN24ATUnited Kingdom Department of Microbiology Federal Teaching Hospital LokojaLokojaKO 260006Nigeria Department of Hematology and Blood Group Serology Federal College of Veterinary and Medical Laboratory TechnologyVomPL 930101Nigeria Department of Environmental and Occupational Health Texas A and M University School of Public HealthGarlandTX 75049United States Division of Chemical Pathology Department of Medical Laboratory SciencesUniversity of NigeriaEnugu CampusEnuguEN 400102Nigeria School of Molecular Bioscience Sciences College of MedicalVeterinary and Life SciencesUniversity of GlasgowGlasgowSCO G128QQUnited Kingdom Department of Medical Laboratory Science State Hospital Ijebu-OdeIjebu-OdeOG 360101Nigeria Department of Medical Laboratory Science Faculty of Health Sciences and TechnologyUniversity of JosJosPL 930103Nigeria Department of Medical Laboratory Science Bola Tinubu Health and Diagnostic CenterLagosLA 100102Nigeria Department of Pathology 68 Nigerian Army Reference HospitalYabaLA 1211001Nigeria Department of Medical Laboratory Science Ladoke Akintola University of TechnologyOgbomosoOS 2111105Nigeria

BACKGROUND Vaccine hesitancy is a major challenge in the fight against the coronavirus disease 2019(COVID-19)*** the sociodemographic factors associated with vaccine acceptance among Nigerians is crucial for improving vaccine *** To assess the acceptance rate of COVID-19 vaccine and its related determinants among *** An online cross-sectional survey(observational study)was conducted between February 2021 and May 2021,using a questionnaire hosted on *** invitation to take part in the poll was sent out to participants through social networking platforms.A logistic regression was used to determine which sociodemographic factors were associated with vaccine acceptance *** A total of 1800 persons responded to the survey,a larger proportion of whom were males(53.9%)and within the age group of 21-30 years(29.4%)and earned an average income of less than$500 per month(43.3%).Only 0.56%of participants had a high perceived risk of COVID-19 infection,while only 1.11%had a perceived risk of dying from *** perception rate of the COVID-19 vaccine among participants was 51.1%,while the acceptance rate was 63.9%.There was no significant association between the COVID-19 vaccine acceptance rate and related determinants assessed,particularly age(χ²=3.049,P=0.550),sex(χ²=0.102,P=0.749),average income(χ²=3.802,P=0.875),and religion(χ²=2.819,P=0.420).Participants with chronic conditions demonstrated a higher acceptance rate compared to the general *** Despite the positive perception observed and substantial vaccine acceptance rate among the study participants,more public health interventions are still needed to enhance vaccine acceptability in Nigeria.

关键词： Acceptance COVID-19 Determinants Hesitancy Nigerians Online survey Vaccine