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A Wavelet Neural Network Based Non-linear Model Predictive Controller for a Multi-variable Coupled Tank System

International Journal of Automation and computing 2015年第2期12卷 156-170页

作者： kayode owa Sanjay Sharma Robert Sutton School of Marine Science and Engineering University of Plymouth Marine and Industrial Dynamic Analysis (MIDAS) Research Group University of Plymouth

In this paper, a novel real time non-linear model predictive controller(NMPC) for a multi-variable coupled tank system(CTS) is designed. CTSs are highly non-linear and can be found in many industrial process applications. The involvement of multi-input multi-output(MIMO) system makes the design of an effective controller a challenging task. MIMO systems have inherent couplings,interactions in-between the process input-output variables and generally have an complex internal structure. The aim of this paper is to design, simulate, and implement a novel real time constrained NMPC for a multi-variable CTS with the aid of intelligent system techniques. There are two major formidable challenges hindering the success of the implementation of a NMPC strategy in the MIMO case. The first is the difficulty of obtaining a good non-linear model by training a non-convex complex network to avoid being trapped in a local minimum solution. The second is the online real time optimisation(RTO) of the manipulated variable at every sampling time.A novel wavelet neural network(WNN) with high predicting precision and time-frequency localisation characteristic was selected for an MIMO model and a fast stochastic wavelet gradient algorithm was used for initial training of the network. Furthermore, a genetic algorithm was used to obtain the optimised parameters of the WNN as well as the RTO during the NMPC strategy. The proposed strategy performed well in both simulation and real time on an MIMO CTS. The results indicated that WNN provided better trajectory regulation with less mean-squared-error and average control energy compared to an artificial neural network. It is also shown that the WNN is more robust during abnormal operating conditions.

关键词： Wavelet neural network(WNN) non-linear model predictive control(NMPC) real time practical implementation multi-input multi-outpu

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Paleo-productivity and petroleum source evaluation of the Nkporo and Awgu shales, Lower Benue Trough, Nigeria: Insight from inorganic geochemistry

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能源地球科学(英文) 2023年第3期4卷 139-148页

作者： Henry Yemagu Madukwe Adebanji kayode Adegoke Mutiu Adesina Adeleye Adeyinka Oluyemi Aturamu Department of Geology Faculty of ScienceEkiti State UniversityP.M.B.5363Ado-EkitiNigeria Department of Geology University of Malaya50603Kuala LumpurMalaysia Department of Geology Faculty of ScienceUniversity of IbadanIbadanNigeria

The petroleum paleo-productivity and generative potential of the Nkporo and Awgu shales in the Lower Benue Trough (LBT) were studied. Major oxides were determined using Spectro Ciros Inductively-coupled plasma optical emission spectrometer (ICP-OES) while trace and rare earth elements were determined using an ELAN 9000 Inductively-coupled plasma mass spectrometer (ICP-MS). The shales have Co/Ni ratios greater than 0.1 suggesting oil source rocks with more marine source input due to brief marine incursion in the transition zone after deposition. The very low Ni values and moderate V values, and a lack of correlation between the TOC and sulphur content, suggests that the organic matter is of terrestrial Type Ⅲ;and the very low paleo-productivity (Ba/Al and P/Ti ratios) suggests that the organic matter is of terrestrial origin. The low V/Ni values of the Nkporo and Awgu shales (Av. ≈ 4) and the high metal concentrations indicate a matured status. From the K/Rb ratios of the Nkporo (191–259) and Awgu shales (198–261), it can be deduced that the organic matter within the shales experienced a considerable loss of K and the shales are mature to generate gaseous hydrocarbons.

关键词： Maturity Organic matter Paleo-productivity Petroleum potentials Shale

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Nigerian antimalarial plants and their anticancer potential:A review

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Journal of Integrative Medicine 2020年第2期18卷 92-113页

作者： kayode Ezekiel Adewole Department of Biochemistry Faculty of Basic Medical SciencesUniversity of Medical SciencesOndoOndo State 234Nigeria

Cancer is a leading cause of death globally, while malaria is the leading cause of death from parasitic diseases in Nigeria. Historically, plant remedies have been used to manage both cancer and ***, the possibility of treating cancer with antimalarial remedies has long been reported, even though the two diseases appear to have little in common. However, a body of research has indicated the potential anticancer activity of both synthetic and nature-derived antimalarials. In Nigeria, over 100 plants are used for the management of malaria, but little is known for their potential role in combatting cancer. Therefore, this review is to highlight the documented anticancer activities of plants used to treat malaria in Nigeria, with the goal of supporting anticancer drug discovery. Scientific databases were used to search for antimalarial plants using selected keywords. Of over 100 plants used to treat malaria in Nigeria, 56 have documented anticancer properties, containing alkaloids, flavonoids, tannins, terpenes,terpenoids, quinones, anthraquinones, saponins, steroids, sterols, organosulfur compounds and other polyphenols as the major bioactive components. The major mechanisms of anticancer activity include induction of apoptosis and autophagy, arrest of cell growth, generation of reactive oxygen species and inhibition of angiogenesis. However, mechanistic and clinical investigations of the anticancer properties of most of these plants are still lacking. Notwithstanding, the huge anticancer potential uncovered by the in vitro or in vivo studies and a few clinical studies, Nigerian antimalarial plants may provide a valuable resource, ready to be harnessed for anticancer drug development.

关键词： Anticancer Cytotoxicity Antimalarial Medicinal plants Nigeria

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Diabetes self-management education:Benefits and challenges

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Journal of Integrative Nursing 2023年第2期5卷 93-101页

作者： Ibironke Cecilia OJO Elizabeth Olufunmilayo OJO Simeo kayode OLUBIYI Department of Nursing College of Medicine and Health ScienceAfe Babalola UniversityAdo-EkitiEkiti StateNigeria

Diabetes mellitus has spread throughout many nations of the world and is now a serious threat.A lack of patient self‑management has been linked to this drain on global *** consequences of diabetic patients’poor self‑management have increased a variety of complications and lengthened hospital *** information and skill acquisition have been linked to poor self‑*** in a co‑operative approach known as diabetes self‑management education will help diabetes patients who want to successfully self‑manage their condition and any associated *** is one of the most important components of a diabetes management *** conclusion,numerous studies have shown that patients with diabetes have poor self‑management skills and knowledge in all areas,making training in diabetes self‑management necessary to minimize the complications that may result from diabetes mellitus among the *** review discussed the severity of diabetes mellitus,diabetes self‑management,and the benefits and challenges of diabetes self‑management,which may aid individuals in understanding the significance of diabetes self‑management and how it relates to diabetes self‑care.

关键词： Diabetes diabetes self‑care diabetes self‑management diabetes self‑management education and support education

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Non-Relativistic Treatment of a Generalized Inverse Quadratic Yukawa Potential

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Chinese Physics Letters 2017年第11期34卷 1-5页

作者： Oluwatimilehin Oluwadare kayode Oyewumi Department of Physics Federal University Oye-EkitiEkiti StateNigeria Department of Physics University of IlorinKwara StateNigeria

A bound state solution is a quantum state solution of a particle subjected to a potential such that the particle＇s energy is less than the potential at both negative and positive infinity. The particle＇s energy may also be negative as the potential approaches zero at infinity. It is characterized by the discretized eigenvalues and eigenfunctions, which contain all the necessary information regarding the quantum systems under consideration. The bound state problems need to be extended using a more precise method and approximation scheme. This study focuses on the non-relativistic bound state solutions to the generalized inverse quadratic Yukawa potential. The expression for the non-relativistic energy eigenvalues and radial eigenfunctions are derived using proper quantization rule and formula method, respectively. The results reveal that both the ground and first excited energy eigenvalues depend largely on the angular momentum numbers, screening parameters, reduced mass, and the potential depth. The energy eigenvalues, angular momentum numbers, screening parameters, reduced mass, and the potential depth or potential coupling strength determine the nature of bound state of quantum particles. The explored model is also suitable for explaining both the bound and continuum states of quantum systems.

关键词： In Non-Relativistic Treatment of a Generalized Inverse Quadratic Yukawa Potential

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Autonomous Unbiased Study Group Formation Algorithm for Rapid Knowledge Propagation

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Computer Systems Science & Engineering 2022年第7期42卷 15-31页

作者： Monday Eze Charles Okunbor Solomon Esomu Nneka Richard-Nnabu kayode Oladapo Oghenetega Avwokuruaye Abisola Olayiwola Akpovi Ominike Godwin Odulaja Oluwatobi Akinmerese Department of Computer Science Babcock UniversityOgunNigeria Department of Computer Science Admiralty UniversityDeltaNigeria Department of Computer Science National Open UniversityNigeria Department of Computer Science and Informatics Alex-Ekwueme Federal UniversityEbonyiNigeria Department of Cyber Security Admiralty UniversityDeltaNigeria Department of Computer Science Caleb UniversityImotaLagosNigeria Department of Computer Science and Information Technology Petroleum Training InstituteDeltaNigeria Department of Computer Science Tai Solarin University of EducationOgunNigeria

Knowledge propagation is a necessity,both in academics and in the *** focus of this work is on how to achieve rapid knowledge propaga-tion using collaborative study *** practice of knowledge sharing in study groupsﬁnds relevance in conferences,workshops,and class ***-nately,there appears to be only few researches on empirical best practices and techniques on study groups formation,especially for achieving rapid knowledge *** work bridges this gap by presenting a workﬂow driven compu-tational algorithm for autonomous and unbiased formation of study *** system workﬂow consists of a chronology of stages,each made of distinct *** of the most important steps,subsumed within the algorithmic stage,are the algorithms that resolve the decisional problem of number of study groups to be formed,as well as the most effective permutation of the study group participants to form collaborative *** work contributes a number of new algorithmic concepts,such as autonomous and unbiased matching,exhaustive multiplication technique,twisted round-robin transversal,equilibrium summation,among *** concept of autonomous and unbiased matching is centered on the constitution of study groups and pairs purely based on the participants’performances in an examination,rather than through any external *** part of practical demon-stration of this work,study group formation as well as unbiased pairing were fully demonstrated for a collaborative learning size of forty(40)participants,and partially for study groups of 50,60 and 80 *** quantitative proof of this work was done through the technique called equilibrium summation,as well as the calculation of inter-study group Pearson Correlation Coefﬁcients,which resulted in values higher than 0.9 in all *** life experimentation was carried out while teaching Object-Oriented Programming to forty(40)under-graduates between February and May *** result showed

关键词： Knowledge propagation collaborative study group unbiased matching twisted round robin exhaustive multiplication

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Parquetina nigrescens leaves： chemical profile and influence on the physical and biochemical indices of sexual activity of male Wistar rats

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Journal of Integrative Medicine 2017年第1期15卷 64-76页

作者： Omowumi Titilola kayode Musa Toyin Yakubu Phytomedicine Toxicology and Reproductive Biochemistry Research Laboratory Department of Biochemistry University of Ilorin Ilorin Nigeria Department of Chemical Sciences Bells University of Technology Ota Ogun State Nigeria

OBJECTIVE： The leaves of Parquetina nigrescens have been claimed in folk medicine to be useful for managing sexual dysfunction, but there is inadequate scientific evidence for this claim. This investigation was conducted to assess the effects of aqueous leaf extract of Parquetina nigrescens （AEPN） in rats induced with sexual dysfunction. METHODS： Male rats were allocated into various groups after being induced into sexual dysfunction with paroxetine hydrochloride. The groups were treated with distilled water, PowMaxM （reference drug）, and the AEPN at 20, 40 and 80 mg/kg body weight （BW） respectively for 7 d. Frequencies of mount （MF）, intromission （IF）, ejaculation （EF）, as well as latencies of mount （ML）, intromission （IL） and post - ejaculatory interval （PEI） were progressively monitored with receptive female rats on days 1, 3 and 7. The precentage of mounted, intromitted, and ejaculated rats, intromission ratio （IR）, copulatory efficiency （CE） and intercopulatory interval （ICI） were also computed. Standard methods were employed to determine the levels of serum luteinizing and follicle stimulating hormones （LH and FSH）, testosterone, nitric oxide （NO） and the activity of phosphodiesterase V （PDE5）. RESULTS： The plant contained alkaloids, saponins, flavonoids, cardiac glycosides, steroids, tannins, phlobatannins, cardenolides, phenolics, anthraquinones and triterpenes with alkaloids （2.32 mg/g） occurring in greatest quantity while flavonoids, anthraquinones and cardenolides （0.01 mg/g, each） were the least. All the 20 standard amino acids were detected in the plant leaf, with the lowest concentration being 0.30 mg/g for methionine and the highest being 2.12 mg/g for cysteine. Furthermore, P. nigrescens leaves contained Na, K, Fe, Mg, Zn, Ca, Cu, Mn, P, Pb, Cd, Ni, Cr, and Co, with Fe present in the highest and Co the lowest concentrations. Paroxetine significantly （P〈0.05） reduced MF, IF, EF, percentage mounted, intromitted, ejaculated, IR, CE, serum testosterone,

关键词： Apocynaceae nitric oxide paroxetine hydrochloride Parquetina nigrescens phosphodiesterase V sexual activity sexual dysfunction

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Transport model for shale gas well leakage through the surrounding fractured zones of a longwall mine

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International Journal of Mining Science and Technology 2020年第5期30卷 635-641页

作者： kayode M.Ajayi Steven J.Schatzel Centers for Disease Control and Prevention National Institute for Occupational Safety and HealthPittsburghPA 15236USA

The environmental risks associated with casing deformation in unconventional(shale)gas wells positioned in abutment pillars of longwall mines is a concern to many in the mining and gas well *** the recent interest in shale exploration and the proximity to longwall mining in Southwestern Pennsylvania,the risk to mine workers could be catastrophic as fractures in surrounding strata create pathways for transport of leaked ***,this research by the National Institute for Occupational Safety and Health(NIOSH)presents an analytical model of the gas transport through fractures in a low permeable *** derived equations are used to conduct parametric studies of specific transport conditions to understand the influence of stratum geology,fracture lengths,and the leaked gas properties on subsurface *** results indicated that the prediction that the subsurface gas flux decreases with an increase in fracture length is specifically for a non-gassy *** sub-transport trend could be significantly impacted by the stratum gas generation rate within specific fracture lengths,which emphasized the importance of the stratum *** findings provide new insights for improved understanding of subsurface gas transport to ensure mine safety.

关键词： Subsurface gas transport Longwall mining Shale gas well Analytical modeling Environmental risk Shale gas casing failure

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Conservation of indigenous medicinal botanicals in Ekiti State, Nigeria

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2006年第9期7卷 713-718页

作者： kayode Joshua Department of Plant Science University of Ado-Ekiti P.M.B.5363 Ado-Ekiti Ekiti State Nigeria

The rapid appraisal method was used to identify the botanicals used ethnomedicinally from a total of 300 randomly selected respondents drawn from the existing three geo-political zones of Ekiti State, Nigeria. The results obtained revealed that about 40% of the 71 botanicals identified presently rare. Most of the presently abundant botanicals are species primarily cul- tivated for other purpose other than medicine. Most of the identified species are valued for their curative effects on malaria and fever, the predominant diseases in the study area. The need for the conservation of the rare species cannot be over emphasised as most rural dwellers in the study area depend mostly on herbs from these species. Strategies towards the attainment of this goal are proposed.

关键词：尼日利亚药用植物评估方法植物鉴别

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Numerical investigation of the effectiveness of radon control measures in cave mines

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International Journal of Mining Science and Technology 2019年第3期29卷 469-475页

作者： kayode Ajayi Khosro Shahbazi Purushotham Tukkaraja Kurt Katzenstein Department of Mechanical Engineering SDSM & TRapid City SD 57701USA Department of Mining Engineering and Management SDSM & TSD 57701USA Department of Geology and Geological Engineering SDSM & TSD 57701USA

Ventilation is one of the radon control measures in an underground working ***,the dynamics related to the cave mining methods particularly in block/panel cave mines,complicate the design of effective ventilation system,and *** such as hang ups(in the drawbells),leakage from old workings,and changes in cave porosity lead to differing response of an existing ventilation ***,it is difficult to investigate these conditions at the mine or with a laboratory scale ***,this study develops a discrete model to investigate the impact of different radon control measures in cave mines using computational fluid dynamics *** considered two ventilation conditions for a fully developed cave:with and without the undercut *** each of the two conditions,we studied four parameters:airflow distribution through the production drifts,radon distribution through the production drifts,the effect of increasing airflow on radon concentration,and the effect of a cave top negative pressure on radon *** results show that:the undercut ventilation significantly increases the radon concentration in the production drift;the growth of radon concentration through the production drift is nonlinear(oscillating pattern);maintaining a negative pressure on top of the cave is more effective at mitigating radon exposure,when the undercut ventilation is active;and increase in air volume flow rate decreases radon concentration in most regions,however,there might be regions with significant radon accumulation due to pressure variation across the *** findings provide vital information for designing an effective ventilation system and for proactive implementation of radon control measures in cave mines.

关键词： Radon gas Underground mining Panel cave mines Broken rocks Computational fluid dynamics(CFD) Porous media Cave mining method

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