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Hydrocarbon Play Assessment of “Oswil” Field, Onshore Niger Delta Region

Journal of Geological Research 2021年第1期3卷 11-21页

作者： Osisanya,W.O. Alile,O.M. eze,s.u. Ibitoye,T.A. Oyanameh,O.E. Department of Physics University of BeninBenin CityEdo stateNigeria Department of Marine Geology Nigeria Maritime UniversityOkerenkokoDelta State Department of Petroleum Engineering and Geosciences Petroleum Training InstituteEffurunNigeria Department of Earth science Anchor UniversityLagosNigeria

Hydrocarbon play assessment of any field involves the evaluation of the production capacity of hydrocarbon reservoir unit in the *** involves detail s.u.y of the reservoir petrophysical properties and geological interpretation of structures suitable for hydrocarbon accumulation in the field as observed from seismic reflection *** s.u.y details the assessment of hydrocarbon play in OsWIL field onshore in Niger Delta,with the intent of appraising its productivity using a combination of seismic,well logs,petrophysical parameters and volumetric estimation using proven techniques which involves an integrated *** reservoir windows“R1”and“R2”were defined from five wells OsWIL-02,04,06,07 and *** top and base of each reservoir window was delineated from the *** interpretation for inline 6975 revealed two horizons(X and Y)and eight faults labelled(F1,F2,F6,F8,F10,F16,F17 and F18).Five faults(F1,F6,F10,F17 and F18)were identified as synthetic faults and dip basin wards while three faults(F2,F8 and F16)were identified as antithetic faults and dips ***-depth structural map at top of reservoirs R1 and R2 revealed structural highs and *** observations are characteristics of growth structures(faults)which depicts the tectonic style of the Niger *** of petrophysical evaluation for reservoirs“R1”and“R2”across the five wells were *** reservoir“R1”effective porosity values of 27%,26%,23%,20%and 22%were obtained for wells OsWIL-04,12,07,06 and 02 respectively with an average of 23.6%,while for reservoir“R2”effective porosity values of 26%,22%,21%,24%and 23%for wells OsWIL-04,12,07,06 and 02 were obtained respectively with an average of 23.2%.This porosity values correspond with the already established porosity range of 28-32%within the Agbada formation of the Niger *** index of the order(K>100mD)were obtained for both reservoirs across the five wells and is rated very *** sat

关键词： seismic Well logs Petrophysical parameters Hydrocarbon play structural interpretation Niger Delta

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semantic segmentation of Lumbar Vertebrae using Meijering u-Net(Mu-Net)on spine Magnetic Resonance Images

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Computer Modeling in Engineering & sciences 2025年第1期142卷 733-757页

作者： Lakshmi s V V shiloah Elizabeth Darmanayagam sunil Retmin Raj Cyril Department of Computer science and Engineering College of Engineering GuindyAnna UniversityChennai600025India Department of Information Technology Madras Institute of TechnologyAnna UniversityChrompetChennai600044India

Lower back pain is one of the most common medical problems in the world and it is experienced by a huge percentage of people *** to its ability to produce a detailed view of the soft tis.u.s,including the spinal cord,nerves,intervertebral discs,and vertebrae,Magnetic Resonance Imaging is thought to be the most effective method for imaging the *** semantic segmentation of vertebrae plays a major role in the diagnostic process of lumbar *** is difficult to semantically partition the vertebrae in Magnetic Resonance Images from the surrounding variety of tis.u.s,including muscles,ligaments,and intervertebral discs.u.Net is a powerful deep-learning architecture to handle the challenges of medical image analysis tasks and achieves high segmentation *** work proposes a modified u-Net architecture namely Mu-Net,consisting of the Meijering convolutional layer that incorporates the Meijering filter to perform the semantic segmentation of lumbar vertebrae L1 to L5 and sacral vertebra ***-colour mask images were generated and used as ground truth for training the *** work has been carried out on 1312 images expanded from T1-weighted mid-sagittal MRI images of 515 patients in the Lumbar spine MRI Dataset publicly available from Mendeley *** proposed Mu-Net model for the semantic segmentation of the lumbar vertebrae gives better performance with 98.79%of pixel accuracy(PA),98.66%of dice similarity coefficient(DsC),97.36%of Jaccard coefficient,and 92.55%mean Intersection over union(mean Iou)metrics.u.ing the mentioned dataset.

关键词： Computer aided diagnosis(CAD) magnetic resonance imaging(MRI) semantic segmentation lumbar vertebrae deep learning u-Net model

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Optimization and kinetics of glucose production via enzymatic hydrolysis of mixed peels

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Journal of Biores.u.ces and Bioproducts 2020年第4期5卷 283-290页

作者： Michael u.ude Ike Oluka Paul C.eze Engineering Research Development and Production Projects Development Institute(PRODA)EmeneEnugu StateNigeria Department of Agricultural and Biores.u.ce Engineering Enugu State University of Science and Technology(ESUT)Enugu StateNigeria

The optimization and kinetics of glucose production via enzymatic hydrolysis of mixed peels were carried *** substrate was characterized using proximate analysis and *** process was optimized using response surface methodology while the kinetics of the hydrolysis was s.u.ied using Michealis-menten *** results obtained showed that the mixed peels have high hemicellulose content,hydrolysable carbohydrate and *** optimum conditions for glucose yield of 79%by enzymatic hydrolysis are temperature of 36℃,time of five days,pH of 4.55 and enzyme dosage of 0.428 g/50 *** hydrolysis obeyed Michealis-Menten kinetic model with spontaneous and feasible ***,the results have proved that mixed peels(cassava and potato peels)is a good substrate for glucose production and s.u.y of other waste peels as feed-stock is recommended.

关键词： Enzymatic hydrolysis Optimization Glucose Cassava and potato peels

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Deciphering the mechanobiology of microglia in traumatic brain injury with advanced microsystems

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Neural Regeneration Research 2025年第8期20卷 2304-2306页

作者： Anthony Procès sylvain Gabriele univ.Grenoble Alpes InsermU1216Grenoble Institut des NeurosciencesGrenobleFrance Mechanobiology&Biomaterials Group CIRMAPResearch Institute for BiosciencesUniversity of MonsMonsBelgium

Advanced microsystems in traumatic brain injury research:Traumatic brain injury(TBI)results from a mechanical insult to the brain,leading to neuronal and axonal damage and subsequently causing a secondary *** minutes ... 详细信息

关键词： traumatic injury damage

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Correction of failure in antenna array using matrix pencil technique

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Chinese Physics B 2017年第6期26卷 491-498页

作者： s.u.Khan M K A Rahim Advanced RF & Microwave Research Group Department of Communication Engineering Faculty of Electrical Engineering Universiti Teknologi Malaysia 81310 Skudai Johor Malaysia

In this paper a non-iterative technique is developed for the correction of faulty antenna array based on matrix pencil technique（MPT）. The failure of a sensor in antenna array can damage the radiation power pattern in terms of sidelobes level and nulls. In the developed technique, the radiation pattern of the array is sampled to form discrete power pattern information set. Then this information set can be arranged in the form of Hankel matrix（HM） and execute the singular value decomposition（sVD）. By removing nonprincipal values, we obtain an optimum lower rank estimation of HM. This lower rank matrix corresponds to the corrected pattern. Then the proposed technique is employed to recover the weight excitation and position allocations from the estimated matrix. Numerical simulations confirm the efficiency of the proposed technique, which is compared with the available techniques in terms of sidelobes level and nulls.

关键词： array correction low rank estimation matrix pencil technique singular value decomposition

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On the detection of closed orbits in time-dependent systems by using double-pulse lasers

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Communications in Theoretical Physics 2020年第9期72卷 111-117页

作者： s.u.Khan M L Du Institute of Theoretical Physics Chinese Academy of Sciences.Beijing 100190China university of Chinese Academy of sciences Beijing100049China

In the photodetachment of atoms or negative ions by a double-pulse laser, the first pulse of the double-pulse laser generates waves and the delayed second pulse may detect them. The phenomenon of the excitation and detection of waves by a double-pulse laser can be used to identify the closed orbits in the system. We demonstrate this phenomenon with a negative hydrogen ion(H^-) by analyzing the total population excited by a double-pulse laser in a timedependent field for different physical parameters. By analyzing the total excited population using a double-pulse laser, we can uncover all the closed orbits existing in the system. We demonstrate that this can be realized by scanning the first pulse position and the time delay between the two pulses.

关键词： double-pulse laser detection of closed orbits photodetachment spectra time-dependent systems

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u. s. Academic Medical Centers.u.der the Managed Health Care Environment

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Biomedical and Environmental sciences 1999年第2期12卷 81-87页

作者： KRIsTINA GuO (school of Policy and Managment, Florida International university,North Miami, FL 33181, u. s. A.) Florida International university 美国

This research investigates the impact of managed health care on academic medical centers in the united states. Academic medical centers hold a unique position in the u. s. health care system through their missions of conducting cutting-edge biomedical researeh, pursuing clinical and technological innovations, Providing state-of-the-art medical care and producing highly qualified health professionals. However, policies to control costs through the use of managed care and limiting res.u.ces are detrimental to academic medical centers and impede the advancement of medical sciTo survive the threats of managed care in the health care environment, acadendc medical centers must rely on their upper level managers to derive success.u. strategies. The methods.u.ed in this s.u.y include qualitative approaches in the form of key informants and case s.u.ies. In addition, a survey questionnaire was sent to 1h8 CEOs in all the academic medical centers in the u. s. The findings revealed that managers who perform the liaison, monitor, entrepreneur and res.u.ce allocator roles are crucial to ensure the survival of academic medical centers, so that academic medical centers can continue their missions to serve the general public and promote their well-being.

关键词： Academic Medical Centers Cost Control Health Policy Humans Managed Care Programs Organizational Innovation united states

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saddle Point Criteria in Nonsmooth semi-Infinite Minimax Fractional Programming Problems

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Journal of systems science & Complexity 2018年第2期31卷 446-462页

作者： MIsHRA s K sINGH Yadvendra VERMA R u Department of Mathematics Banaras Hindu University Varanasi-221005 India. Department of Mathematics Texas State University USA

This paper considers a nonsmooth semi-infinite minimax fractional programming problem（sIMFP） involving locally Lipschitz invex functions. The authors establish necessary optimality conditions for sIMFP. The authors establish the relationship between an optimal solution of sIMFP and saddle point of scalar Lagrange function for sIMFP. Further, the authors s.u.y saddle point criteria of a vector Lagrange function defined for sIMFP.

关键词： Generalized convexity Lagrange function nonsmooth programming problems saddlepoint semi-infinite minimax fractional programming problems.

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Exercise preconditioning alleviates ischemia-induced memory deficits by increasing circulating adiponectin

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Neural Regeneration Research 2025年第5期20卷 1445-1454页

作者： Meifeng Zheng Borui Zhang sonata s Y Yau Kwok-Fai so Li Zhang Haining Ou Department of Rehabilitation Medicine Guangzhou Medical UniversityGuangzhouGuangdong ProvinceChina Department of Rehabilitation Medicine The Fifth Clinical College of Guangzhou Medical UniversityGuangzhouGuangdong ProvinceChina Key Laboratory of CNs Regeneration(Ministry of Education) Guangdong-Hong Kong-Macao Institute of CNS RegenerationJinan UniversityGuangzhouGuangdong ProvinceChina Department of Rehabilitation sciences The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina state Key Laboratory of Brain and Cognitive science Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong Special Administrative RegionChina Center for Exercise and Brain science School of PsychologyShanghai University of SportShanghaiChina Neuroscience and Neurorehabilitation Institute University of Health and Rehabilitation SciencesQingdaoShandong ProvinceChina

Cerebral ischemia is a major health risk that requires preventive approaches in addition to drug *** exercise enhances neurogenesis and synaptogenesis,and has been widely used for functional rehabilitation after *** this s.u.y,we determined whether exercise training before disease onset can alleviate the severity of cerebral *** also examined the role of exercise-induced circulating factors in these *** mice were subjected to 14 days of treadmill exercise training before surgery for middle cerebral artery *** found that this exercise pre-conditioning strategy effectively attenuated brain infarct area,inhibited gliogenesis,protected synaptic proteins,and improved novel object and spatial memory *** analysis showed that circulating adiponectin plays a critical role in these preventive effects of *** activation of adiponectin receptors by Adipo Ron mimicked the effects of exercise,while inhibiting receptor activation abolished the exercise *** summary,our results suggest a crucial role of circulating adiponectin in the effects of exercise pre-conditioning in protecting against cerebral ischemia and supporting the health benefits of exercise.

关键词： adiponectin cerebral ischemia exercise pre-conditioning hippocampus memory function middle cerebral artery occlusion prefrontal cortex synaptic proteins treadmill exercise

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Composition　and　structural　Features　of　Calcium－Bound　and　Iron－and　Aluminium－Bound　Humus　in　soils

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Pedosphere 1996年第3期 277-284页

作者： s.u. CHEEMA Xu JIAN-MIN and YuAN KE-NENG(Department of soil science and Agricultural Chendstry, Zhejiang Agricultural university, Hangzhou 31O029china)

ＣｏｍｐｏｓｉｔｉｏｎａｎｄＳｔｒｕｃｔｕｒａｌＦｅａｔｕｒｅｓｏｆＣａｌｃｉｕｍ－ＢｏｕｎｄａｎｄＩｒｏｎ－ａｎｄＡｌｕｍｉｎｉｕｍ－ＢｏｕｎｄＨｕｍｕｓｉｎＳｏｉｌｓ￥Ｓ．Ｕ．ＣＨＥＥＭＡ；ＸＵＪＩＡＮ－ＭＩＮａ... 详细信息

ＣｏｍｐｏｓｉｔｉｏｎａｎｄＳｔｒｕｃｔｕｒａｌＦｅａｔｕｒｅｓｏｆＣａｌｃｉｕｍ－ＢｏｕｎｄａｎｄＩｒｏｎ－ａｎｄＡｌｕｍｉｎｉｕｍ－ＢｏｕｎｄＨｕｍｕｓｉｎＳｏｉｌｓ￥Ｓ．Ｕ．ＣＨＥＥＭＡ；ＸＵＪＩＡＮ－ＭＩＮａｎｄＹＵＡＮＫＥ－ＮＥＮＧ（Ｄｅｐ...

关键词： humus organo-mineral complexes soils

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