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Application of support vector machine algorithm for early differential diagnosis of prostate cancer

Data Science and Management 2023年第1期6卷 1-12页

作者： Boluwaji A.Akinnuwesi kehinde a.olayanju Benjamin S.Aribisala Stephen G.Fashoto Elliot Mbunge Moses Okpeku Patrick Owate Department of Computer Science Faculty of Science and EngineeringUniversity of EswatiniKwaluseniM201Swaziland Department of Computer Science Education Federal College of Education(Technology)AkokaLagos State100213Nigeria Department of Computer Science Faculty of ScienceLagos State UniversityOjoLagos State102101Nigeria Department of Genetics University of KwaZulu-NatalDurban4041South Africa

Prostate cancer(PCa)symptoms are commonly confused with benign prostate hyperplasia(BPH),particularly in the early stages due to similarities between symptoms,and in some instances,*** methods have been utilized to diagnose PCa;however,at the full-blown stage,clinical methods usually present high risks of complicated side ***,we proposed the use of support vector machine for early differential diagnosis of PCa(SVM-PCa-EDD).SVM was used to classify persons with and without *** used the PCa dataset from the Kaggle Healthcare repository to develop and validate SVM model for *** PCa dataset consisted of 250 features and one class of *** considered in this study were age,body mass index(BMI),race,family history,obesity,trouble urinating,urine stream force,blood in semen,bone pain,and erectile *** SVM-PCa-EDD was used for preprocessing the PCa dataset,specifically dealing with class imbalance,and for dimensionality *** eliminating class imbalance,the area under the receiver operating characteristic(ROC)curve(AUC)of the logistic regression(LR)model trained with the downsampled dataset was 58.4%,whereas that of the AUC-ROC of LR trained with the class imbalance dataset was 54.3%.The SVM-PCa-EDD achieved 90%accuracy,80%sensitivity,and 80%*** validation of SVM-PCa-EDD using random forest and LR showed that SVM-PCa-EDD performed better in early differential diagnosis of *** proposed model can assist medical experts in early diagnosis of PCa,particularly in resource-constrained healthcare settings and making further recommendations for PCa testing and treatment.

关键词： Confusable diseases Computational intelligence Early differential diagnosis Logistic regression Prostate cancer Support vector machine

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Trends,benefits,risks,and challenges of IoT implementation in residential and commercial buildings

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Energy and Built Environment 2022年第3期3卷 251-266页

作者： kehinde Lawal Hamed Nabizadeh Rafsanjani School of Electrical and Computer Engineering University of GeorgiaAthensGA 30602USA School of Environmental CivilAgriculturaland Mechanical EngineeringUniversity of GeorgiaAthensGA 30602USA

Residential and commercial buildings are undergoing a dramatic change,and the Internet of Things(IoT)tech-nologies are shaping the future of these *** have recently utilized IoT in a variety of applica-tions and settings to transfer conventional buildings into smart,efficient,and secure *** functional IoT approaches have been developed,there is still a need for improvement in IoT applications and operations to understand the full potential of this *** improvement can properly be done by bridging the gaps of the current literature to provide a building block for future *** objective of this paper is to present a comprehensive review of research work on the existing technologies and applications of IoT in residential and commercial *** residential buildings,studies are divided to three major categories of home automa-tion,intelligent energy management systems,and healthcare *** commercial buildings,the current literature is divided to four categories of office buildings,healthcare facilities,educational buildings,and restau-rants and retail *** on the review of each category,the trends,current benefits and risks,and future challenges of the IoT implementation in the built environments are identified and *** particular,in-tegration of various IoT technologies with different capabilities,data storage and processing,and privacy and security risks are identified as the main challenges for IoT *** addition,our results show that the commercial building sector has received more attention compared to the residential building *** providing the directions for future research opportunities,this paper benefits IoT developers and researchers to properly identify their work boundaries and define their contributions.

关键词： Internet of things Residential buildings Commercial buildings Smart buildings Review

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Green hydrogen production from photovoltaic power station as a road map to climate change mitigation

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Clean Energy 2024年第2期8卷 156-167页

作者： kehinde Ridwan Kamil Bassey Okon Samuel Umar Khan Department of Computer Science and Engineering Edge Hill UniversityUK Enel Green Power Rome Italy Materials Research Laboratory Steelagon Engineering LimitedKaduna StateNigeria

The increasing recognition of hydrogen as a critical element in the global net-zero transition and its clear role in decarbonizing challenging sectors coincide with the growing urgency to address climate ***'s favourable renewable-energy capacity,ranging from 28%to 36%for solar,has been reported by the global solar irradiance ***,the majority of hydrogen production today relies on fossil fuels(96%),with only a small fraction(4%)being produced through water *** though there have been many studies on climate change mitigation with a focus on Africa,a green hydrogen production from a photovoltaic power station approach has not been ***,literature with a focus on Nigeria is *** study focuses on the African green hydrogen production industry,utilizing Nigeria as a case study to explore the feasibility of generating clean hydrogen vectors from a percentage of photovoltaic power output in various regions of the country through stand-alone solar grid electrification *** of the usage and effectiveness of the produced hydrogen fuel in each region are carried out,with the highest region having an annual output of 12247278 kg of green hydrogen and 8573094 kg of ammonia and the lowest region having an output of 511245 kg of green hydrogen and 357871 kg of ammonia,and the expected production from the proposed usage of 50%of the power generation output of the installed 1.6-MWp and 80-kWp solar power minigrids in the regions is *** analyses were repeated for the other considered regions in the *** results showcased the enormous advantages of the electrolytic production of hydrogen and how the greener economy project can play a major role in mitigating climate change effects and overreliance on fossil fuels as the driver of the economy in many African countries.

关键词： renewable energy photovoltaic climate change green hydrogen vector fossil fossil fuels decarbonization electrolysis

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Climate Change Effects on Employment in the Nigeria's Agricultural Sector

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Chinese Journal of Urban and Environmental Studies 2023年第3期11卷 149-171页

作者： kehinde Samuel ALEHILE Department of Economics Faculty of Social Sciences Kogi State University

Climate change poses mounting risks to agricultural development and rural livelihoods in *** study investigates the impacts of climate change on agricultural sector employment in Nigeria. Agriculture provides income and sustenance for much of Nigeria’s rural ***, smallholder rain-fed farming predominates, with minimal resilience to climate *** data reveal rising temperatures and declining, erratic rainfall across Nigeria’s agroecological zones since the 1970s. Crop modeling predicts further climate changes will reduce yields of key staple crops. This threatens the viability of smallholder agriculture and risks widespread job losses. The study adopts a nonlinear autoregressive distributed lag(NARDL)modeling approach to evaluate climate change effects on agricultural sector employment in Nigeria from 1990 to 2020. Findings reveal reduced rainfall initially raises employment, as farming requires more labor in dry conditions. However, protracted droughts significantly reduce agricultural jobs. Increased temperatures consistently lower farm employment through reduced yields and incomes. Based on these findings, the study recommends that adaptive strategies are urgently needed to build resilience, promote climate-smart agriculture, and safeguard rural livelihoods.

关键词： Climate change agricultural employment rainfall temperature Nigeria

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A Preliminary Feasibility Study on Wind Resource and Assessment of a Novel Low Speed Wind Turbine for Application in Africa

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Energy Engineering 2022年第3期119卷 997-1015页

作者： kehinde Adeyeye Nelson Ijumba Jonathan Colton African Centre of Excellence Energy for Sustainable DevelopmentUniversity of RwandaKigaliRwanda School of Engineering University of KwaZulu NatalDurbanSouth Africa George W.Woodruff School of Mechanical Engineering Georgia Institute of TechnologyAtlantaUSA

This paper posits that a low-speed wind turbine design is suitable for harnessing wind energy in *** wind turbines consisting of propeller designs are commonly used across the world.A major hurdle to utilizing wind energy in Africa is that conventional commercial wind turbines are designed to operate at wind speeds greater than those prevalent in most of the continent,especially in sub-Sahara Africa(SSA).They are heavy and expensive to purchase,install,and *** a result,only a few countries in Africa have been able to include wind energy in their energy *** this paper,the feasibility of a novel low-speed wind turbine based on a Ferris wheel is demonstrated for low wind speed applications in *** performance of Ferris wheel wind turbines(FWT)with 61m(200 ft),73m(240 ft)and 104m(341 ft)diameter rims and an 800kW generator are evaluated for selected African *** research also compares the Weibull wind distribution of the African cities of interest.A comparison between the FWT and the conventional commercial wind turbines in terms of efficiency,rated wind speed,cost,performance,and power to weight is *** show that the FWT has the potential for economic power generation at rated wind speeds of 6.74m/s,which are lower than the average of 12 m/s for conventional wind turbines and have lower power to weight ratios of 5.2 kW/tonne as compared to 6.0-9.2 kW/tonne for conventional wind turbines.

关键词： Wind energy conventional wind turbines ferris wheel wind turbine energy access sub-sahara africa wind speed

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A new method for estimating the longevity and degradation of hotovoltaic systems considering weather states

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Frontiers in Energy 2016年第3期10卷 277-285页

作者： Amir AHADI Hosein HAYATI Joydeep MITRA Reza ABBASI-ASL kehinde AWODELE Young Researchers and Elite Club Ardabil Branch Islamic Azad University Ardabil *** Iran Department of Electrical and Computer Engineering Michigan State University East Lansing MI 48823 USA Department of Electrical Engineering and Computer Sciences University of California Berkeley CA 94720 USA Department of Electrical Engineering University of Cape Town Cape Town 7701 South Africa

The power output of solar photovoltaic （PV） systems is affected by solar radiation and ambient temperature. The commonly used evaluation techniques usually overlook the four weather states which are clear, cloudy, foggy, and rainy. In this paper, an ovel analytical model of the four weather conditions based on the Markov chain is proposed. The Markov method is well suited to estimate the reliability and availability of systems based on a continuous stochastic process. The proposed method is generic enough to be applied to reliability evaluation of PV systems and even other applications. Further aspects investigated include the new degradation model for reliability predication of PV modules. The results indicate that the PV module degradation over years, failures, and solar radiation must be considered in choosing an efficient PV system with an optimal design to achieve the maximum benefit of the PV system. For each aspect, a method is proposed, and the complete focusing methodology is expounded and validated using simulated point targets. The results also demonstrate the feasibility and applic- ability of the proposed method for effective modeling of the chronological aspects and stochastic characteristics of solar cells as well as the optimal configuration and sizing of large PV plants in terms of cost and reliability.

关键词： photovoltaic (PV) systems solar cell Markov model weather effects

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Determinants of adoption of multiple sustainable agricultural practices among smallholder farmers in Nigeria

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International Soil and Water Conservation Research 2021年第2期9卷 241-248页

作者： Zainab Oyetunde-Usman kehinde Oluseyi Olagunju Oyinlola Rafiat Ogunpaimo Natural Resources Institute University of GreenwichChatham Maritime ME44TBUK Economics Research Branch Agri-Food and Biosciences Institute18a Newforge Lane BT95PXUK Rural Economy&Development Programme TeagascMellows CampusAthenryCo.GalwayH65 R718Ireland

Despite the important roles of Sustainable Agricultural Practices(SAPs)in improving productivity,welfare,and food security of farming households,the adoption rates of SAPs have been perceived to be generally low,especially in developing *** cross-sectional data collected from the 2015 Nigeria General Household Survey,this study examines the factors influencing the adoption of multiple SAPs,while also considering the drivers of the intensity of adoption of these *** methods of data analysis are based on the Multivariate probit and the Ordered probit *** SAPs considered include improved seeds,inorganic fertilizer,mixed-cropping techniques,and organic *** empirical results show that farmers’adoption of different SAPs and their intensity of use depend significantly on factors such as the age of household head,gender,education,household size,access to extension services,and household wealth *** findings imply that policymakers and agricultural development agencies should seek to maintain or increase household asset bases,and encourage both formal and informal training programme among farming households to facilitate the adoption of SAPs.

关键词： Sustainable land management Adoption intensity Multivariate probit Ordered probit Developing countries

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Phosphorus and nitrogen in the soil interface between two plant residues differing in C/nutrient ratio:A short-term laboratory incubation study

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Soil Ecology Letters 2020年第3期2卷 188-194页

作者： kehinde O.Erinle Petra Marschner School of Agriculture Food and WineThe University of AdelaideSouth Australia5005Australia

In studies on the effects of mixing residues with different properties on decomposition rate and nutrient release,the extent of contact between the different residues is not *** this study,we used an experimental design where crop residues were spatially separated by a layer of *** were set up using young faba bean residue(low carbon(C)/nutrient ratio,L)and mature barley straw(high C/nutrient ratio,H).The microcosms comprised of two caps of PVC tubes,each filled with moist *** the two caps,there were three layers each separated from the others by fine nylon mesh with the middle layer being the moist interface *** had similar(H/H or L/L)or different(L/H)residue types,or only residue type(H/S or L/S)while the other cap had no *** treatments with only one residue,measured parameters,except microbial biomass P(MBP),were higher in L/S than H/*** treatments with two residues,all parameters were lowest in H/*** L/H compared to L/L after 14 days,available P and microbial biomass N(MBN)were lower,available N was similar and MBP was *** 28 days,available P and N were lower in L/H than L/L,but MBP and MBN did not *** L/H,measured resin P,MBP and MBN were higher than expected whereas available N was *** experimental design used in this study allows assessing the effect of residues on properties of the soil between them.

关键词： Crop residues C/P ratios Interface soil Phosphorus pools

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Formal verification with HiLLS-specified models:A further step in multi-analysis modeling of complex systems

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International Journal of Modeling, Simulation, and Scientific Computing 2019年第5期10卷 82-107页

作者： kehinde G.Samuel Oumar Maiga Mamadou K.Traor′e frican University of Science&Technology AbujaNigeria Universit´e des Sciences des Techniques et des Technologies Bamako Mali University of Bordeaux IMS CNRS UMR 5218 France

The multi-analysis modeling of a complex system is the act of building a family of models which allows to cover a large spectrum of analysis methods(such as simulation,formal methods,enactment,...)that can be performed to derive various properties of this *** High-Level Language for Systems Specification(HiLLS)has recently been introduced as a graphical language for discrete event simulation,with potential for other types of analysis,like enactment for rapid system *** defines an automata language that also opens the way to formal *** paper provides the building blocks for such a *** way,a unique model can be used not only to perform both simulation and enactment experiments but also to allow the logical analysis of properties without running any ***,it saves from the effort of building three different analysis-specific models and the need to align them semantically.

关键词： Discrete Event System Specification(DEVS) High Level Language for Systems Specification(HiLLS) multi-analysis modeling discrete event simulation model checking

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Characterization of cobalt ferrite-supported activated carbon for removal of chromium and lead ions from tannery wastewater via adsorption equilibrium

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Water Science and Engineering 2020年第3期13卷 202-213页

作者： Muibat Diekola Yahya kehinde Shola Obayomi Mohammed Bello Abdulkadir Yahaya Ahmed Iyaka Adeola Grace Olugbenga Department of Chemical Engineering Federal University of TechnologyMinnaP.M.B.65Nigeria Department of Chemical Engineering Landmark UniversityOmu-AranP.M.B.1001Nigeria Department of Chemistry Federal University of TechnologyMinnaP.M.B.65Nigeria

In this experiment,cobalt ferrite-supported activated carbon(CF-AC)was developed and characterized via the wet impregnation method for the removal of Cr and Pb(II)ions from tannery *** adsorption was carried out to evaluate the effect of experimental operating conditions(pH of solution,contact time,adsorbent dose,and temperature),and the removal efficiencies of Cr and Pb(II)ions by the developed adsorbents were calculated and recorded for all experimental *** variables were estimated and reported as removal efficiencies of 98.2%for Cr and 96.4%for Pb(II)ions at the optimal conditions of 5,0.8 g,80 min,and 333 K for pH,adsorbent dose,contact time,and temperature,*** equilibrium for the sorption of Cr and Pb(II)ions was studied using four widely used isotherm models(the Langmuir,Freundlich,Dubinin-Radushkevich,and Temkin isotherm models).It was found that the Freundlich isotherm model fit better with the coefficient of determination(R2)of 0.9484 and a small sum of square error of *** maximum adsorption capacities(Qm)of Pb(II)and Cr adsorbed onto CF-AC were determined to be 6.27 and 23.6 mg/g,*** adsorption process conformed well to pseudo-second order kinetics as revealed by the high R2 values obtained for both *** thermodynamic parameters showed that adsorption of Cr and Pb(II)ions onto CF-AC was spontaneous,feasible,and endothermic under the studied *** mean adsorption energy(E)values revealed that the adsorption mechanism of Cr and Pb(II)by CF-AC is physical in *** results of the study showed that adsorbent developed from CF-AC can be efficiently used as an environmentally friendly alternative adsorbent,for removal of Cr and Pb(II)ions in tannery wastewater.

关键词： Almond husk Cobalt ferrite Equilibrium study Heavy metals Adsorption Removal efficiency

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