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Estimating parameters of new proposed probability distribution and comparing efficiency of estimators 估计新提出的概率分布的参数并比较估计器的效率
American Journal of Scientific and Industrial Research Pub Date : 2012-10-01 DOI: 10.5251/AJSIR.2012.3.5.331.344
Khairiyah Hasun, Saad Alnuimi
{"title":"Estimating parameters of new proposed probability distribution and comparing efficiency of estimators","authors":"Khairiyah Hasun, Saad Alnuimi","doi":"10.5251/AJSIR.2012.3.5.331.344","DOIUrl":"https://doi.org/10.5251/AJSIR.2012.3.5.331.344","url":null,"abstract":"This paper deals with generating a new probability distribution using entropy like transformation which is considered as useful model to represent the data of time to failure where there is a depression in the times when failure happens, in machines and equipment of production line. Then new generalized function , is a family of Raylieh distribution with two parameters, shifting parameters and scale parameters. The paper includes many methods of estimation like maximum likelihood and Bayesian according to proposed prior which is theminimax estimator and semi minimax, the comparison is done through simulation experiment, also the efficiency of estimator's were compared .","PeriodicalId":7661,"journal":{"name":"American Journal of Scientific and Industrial Research","volume":"89 1","pages":"331-344"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83400625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Near-surface structural model for enhanced seismic data acquisition and processing in North-Central Niger Delta 尼日尔三角洲中北部增强地震数据采集与处理的近地表构造模型
American Journal of Scientific and Industrial Research Pub Date : 2012-10-01 DOI: 10.5251/AJSIR.2012.3.5.252.262
G. Alaminiokuma, J. Amonieah
{"title":"Near-surface structural model for enhanced seismic data acquisition and processing in North-Central Niger Delta","authors":"G. Alaminiokuma, J. Amonieah","doi":"10.5251/AJSIR.2012.3.5.252.262","DOIUrl":"https://doi.org/10.5251/AJSIR.2012.3.5.252.262","url":null,"abstract":"Near-surface structural model was geostatistically developed from a sample density of 36 Uphole/LVL survey points to determine the properties of the weathering layer geological materials. Results from the generated Isopachs and Isovels show a dominant 2-weathered layer model with 1-weathered layer model in only five locations, mainly along the escarpment. The average thickness of the weathering layer to the first refractor consolidated layer is 18.84 m with an average velocity of 1791.40 ms -1 . Weathering thicknesses ranged from 1.3 to 4.7 m, subweathering thicknesses from 11.4 to 35.7 m; weathering velocities from 119 to 941 ms -1 ; subweathering velocities from 425 to 1665 ms -1 and consolidated layer velocities from 1610 to 2208 ms -1 . Proper application of these results will prove very useful and reliable for the enhancement of optimization processes during stages of seismic data processing and serve as baseline data for future 4D seismic data acquisition for accurate mapping of the deep underlying structures for oil and gas exploration in the North-Central part of the Niger Delta.","PeriodicalId":7661,"journal":{"name":"American Journal of Scientific and Industrial Research","volume":"35 1","pages":"252-262"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80810070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
Characterization of Taoura’s multilayers system by the geochemical tracers of carbonates and the evaporites (oriental extreme Algeria) 碳酸盐岩和蒸发岩地球化学示踪剂对Taoura多层体系的表征(阿尔及利亚东端)
American Journal of Scientific and Industrial Research Pub Date : 2012-10-01 DOI: 10.5251/AJSIR.2012.3.5.305.314
Yasmina Bouroubi Ouadfel, M. Djebbar
{"title":"Characterization of Taoura’s multilayers system by the geochemical tracers of carbonates and the evaporites (oriental extreme Algeria)","authors":"Yasmina Bouroubi Ouadfel, M. Djebbar","doi":"10.5251/AJSIR.2012.3.5.305.314","DOIUrl":"https://doi.org/10.5251/AJSIR.2012.3.5.305.314","url":null,"abstract":"In the North-East Algeria, in the zone of diapirs, the previous hydrogeologic study of the region of Souk-Ahras Taoura had identified the multilayer aquifer system of Miocene sandstones and carbonates of lower and upper Cretaceous. The formations are generally dominated by carbonate intercalated with marl, highly fractured and folded (NE-SW), in parallel to the direction of the structures outcrops the Triassic diapiric. The thermal carbonated aquifer updates of the Neogene-quaternary of highly mineralized springs with low discharge (Hammam Tassa, Ain El Damssa); the fissural aquifer and the maastrichtian and campanian aquifers, widely exploited for the drinking water and the irrigation, contain an important potential in water. For a better understanding of the functioning of the aquifer system, it seemed necessary to characterize him by geochemical tracers of carbonates and evaporates. The geochemical data of waters of sources and main drillings showed, on one hand that thermal waters circulated rather profoundly by washing the Triassic evaporitic, and on the other hand which the fracturing in distension allowed waters to drain simultaneously aquifers. Thus, waters appearing to springs would be a mixture, in variable proportions, between the different types of water flowing in this hydrothermal karst system.","PeriodicalId":7661,"journal":{"name":"American Journal of Scientific and Industrial Research","volume":"33 1","pages":"305-314"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84267468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
The Impact of Deduako Community on Giving in the Church: A Mathematical Analysis Deduako社区对教会奉献的影响:一个数学分析
American Journal of Scientific and Industrial Research Pub Date : 2012-10-01 DOI: 10.5251/AJSIR.2012.3.5.292.299
C. Andam, W. Obeng-Denteh
{"title":"The Impact of Deduako Community on Giving in the Church: A Mathematical Analysis","authors":"C. Andam, W. Obeng-Denteh","doi":"10.5251/AJSIR.2012.3.5.292.299","DOIUrl":"https://doi.org/10.5251/AJSIR.2012.3.5.292.299","url":null,"abstract":"The purpose of the study was to analyze “giving” among the members of the Deduako-Kodiekrom Society of the Methodist Church using mathematical tools in the analysis.Deduako-Kodiekrom is a community in the Ashanti Region of Ghana and is well endowed. Farming is part of the life of the people of the community and an appreciable number of them are teachers, doctors, businessmen and woman, lawyers, pastors, traders and a host of others. The analysis was based on data obtained from the church being the amounts given by members of the church in the last five Appeal-for-Funds held by the Church in the Church. Upon analysis, it was found out that there is a high level of giving in the church. At any of the appeal-for-funds held, the average amount given by each individual in the Church ranges between 7.10 GHC and 10.80 GHC which is good. The people are really generous in terms of giving to the Church in the Community. The study contributes to the literature by providing data-based evidence documenting the extent to which the importance of giving held in the church have really gone down well with them.","PeriodicalId":7661,"journal":{"name":"American Journal of Scientific and Industrial Research","volume":"62 1","pages":"292-299"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89204210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tribometric evaluation of rubber seed oil lubricant in upset forging 橡胶籽油在镦锻中的摩擦学评价
American Journal of Scientific and Industrial Research Pub Date : 2012-10-01 DOI: 10.5251/AJSIR.2012.3.5.270.276
M. Oseni, D. Gundu
{"title":"Tribometric evaluation of rubber seed oil lubricant in upset forging","authors":"M. Oseni, D. Gundu","doi":"10.5251/AJSIR.2012.3.5.270.276","DOIUrl":"https://doi.org/10.5251/AJSIR.2012.3.5.270.276","url":null,"abstract":"Tribometric evaluation of rubber (Hevea brasiliences) seed oil lubricant in upset forging was carried out. Upset forging was simulated with ring compression tests using Plasticine as model material and the rubber and reference oil samples as lubricant. The oils were applied to various die/ring surface combinations as they were compressed in the California Bearing Ratio (CBR) machine. Results show that friction factors for rubber seed oil ranging from μ=0.20 to μ = 0.577 compare favorably with the values for reference mineral base oil (0.29-0.42). Friction factors obtained from ring compression tests for the rubber seed oil are within the range of natural oil lubricants (groundnut oil; 0.072-0.5, palm oil;. 0.3, palm kernel oil; 0.084 and sheanut oil; 0.092). Rubber seed oil can therefore be used as a substitute for mineral base oils that are currently in use as lubricants in upset forging. Industrial organizations will derive immense benefit from this source of environment friendly, biodegradable and low toxicity oil lubricant.","PeriodicalId":7661,"journal":{"name":"American Journal of Scientific and Industrial Research","volume":"56 1","pages":"270-276"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90698425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Improvement of aquifer transmissivity assessment in crystalline and metamorphic fractured rocks in Bondoukou area, North-Eastern Côte d’Ivoire Côte科特迪瓦东北部Bondoukou地区结晶和变质裂隙岩含水层渗透率评价的改进
American Journal of Scientific and Industrial Research Pub Date : 2012-10-01 DOI: 10.5251/AJSIR.2012.3.5.315.330
T. Lasm, M. Youan
{"title":"Improvement of aquifer transmissivity assessment in crystalline and metamorphic fractured rocks in Bondoukou area, North-Eastern Côte d’Ivoire","authors":"T. Lasm, M. Youan","doi":"10.5251/AJSIR.2012.3.5.315.330","DOIUrl":"https://doi.org/10.5251/AJSIR.2012.3.5.315.330","url":null,"abstract":"This study is performed in the Bondoukou area located in north-eastern Cote d’Ivoire. The aim of this study was to improve the assessment of transmissivity of the highly fractured aquifers of Bondoukou area using kriging techniques. A previous estimation of the transmissivity was conducted with aquifer transmissivity of crystalline rocks (n = 62). These transmissivities were later supplemented by 78 samples of aquifer transmissivity of metamorphic rocks. The results of this study were compared with those obtained in crystalline rock aquifers. In both cases, the variogram exhibits a large nugget effect representing respectively 63 and 70% of total dispersion. The nugget effect of this study is less important than the previous study. The range is equal to 12 km and is larger than that obtained in the previous study. The structuring of the variogram is enhanced when we consider the aquifer transmissivity of metamorphic rocks. Transmissivity estimated in both studies varies between 4.00E-06 and 1.72 E-06 E-05 m 2 .s -1 and between 3.86 E-06 and 1.84 E-05 m 2 .s -1 respectively in the previous study and in this study. In both cases, the observed and estimated transmissivities values are comparable and are spread over two orders of magnitude. Kriging maps showed that the estimation of transmissivity in Bondoukou area is better in this study. The results obtained in this study are interesting because they showed improved estimate of the transmisssivity in the Bondoukou area. Key-words: crystalline basement, fractured aquifers, Bondoukou, transmissivity, variogram, kriging.","PeriodicalId":7661,"journal":{"name":"American Journal of Scientific and Industrial Research","volume":"32 1","pages":"315-330"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85446065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of a biometrically- controlled door system (using iris), with power backup 开发生物识别控制的门系统(使用虹膜)，带电源备份
American Journal of Scientific and Industrial Research Pub Date : 2012-08-01 DOI: 10.5251/AJSIR.2012.3.4.203.207
A. Falohun, E. Omidiora
{"title":"Development of a biometrically- controlled door system (using iris), with power backup","authors":"A. Falohun, E. Omidiora","doi":"10.5251/AJSIR.2012.3.4.203.207","DOIUrl":"https://doi.org/10.5251/AJSIR.2012.3.4.203.207","url":null,"abstract":"This paper presents a design and implementation of a biometrically-controlled door system using iris recognition with power backup(case: Nigeria with epileptic power supply) where user's life property will serve as the key to granting access to a place or resource . Today, door system with handles is sub-standard due to its instability to provide the expected security and is susceptible to breakages and deliberate compromises of human operators(due to corruption). Black iris data sets were used to simulate the iris recognition algorithms employed on the fabricated door prototype. The system was tested with a number of pre-enrolled templates and some fresh, incoming subjects. The door only unlocked for pre-enrolled subjects while for the latter, access denial was the case. The door system developed thus, answered only to iris signature.","PeriodicalId":7661,"journal":{"name":"American Journal of Scientific and Industrial Research","volume":"79 1","pages":"203-207"},"PeriodicalIF":0.0,"publicationDate":"2012-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84127773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Computation of soap production using a developed parametric linear programming algorithm 用已开发的参数线性规划算法计算肥皂产量
American Journal of Scientific and Industrial Research Pub Date : 2012-08-01 DOI: 10.5251/AJSIR.2012.3.4.226.230
Adamu Wakili, Y. Haruna
{"title":"Computation of soap production using a developed parametric linear programming algorithm","authors":"Adamu Wakili, Y. Haruna","doi":"10.5251/AJSIR.2012.3.4.226.230","DOIUrl":"https://doi.org/10.5251/AJSIR.2012.3.4.226.230","url":null,"abstract":"This paper critically examines parametric linear programming problem (PLPP) with interval in the coefficients of the objective function and the composition of Plus, Beauty and Nova soap. The finding of soap production in NASCO Company in Jos, Nigeria will be studied and the problem formulated. The formulated problem is tested using the developed computer program by varying the parameter at regular interval and obtaining the corresponding values of the objective function. The interpretation of the results will be analysized.","PeriodicalId":7661,"journal":{"name":"American Journal of Scientific and Industrial Research","volume":"105 1","pages":"226-230"},"PeriodicalIF":0.0,"publicationDate":"2012-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86780469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A new concept for hard rock aquifers survey and management: individual blocks approach 硬岩含水层调查与管理的新概念:单块法
American Journal of Scientific and Industrial Research Pub Date : 2012-08-01 DOI: 10.5251/AJSIR.2012.3.4.208.220
K. Yao, O. Fouché
{"title":"A new concept for hard rock aquifers survey and management: individual blocks approach","authors":"K. Yao, O. Fouché","doi":"10.5251/AJSIR.2012.3.4.208.220","DOIUrl":"https://doi.org/10.5251/AJSIR.2012.3.4.208.220","url":null,"abstract":"The survey area is located south-west of Côte d'Ivoire in Precambrian metamorphic and plutonic zone. To highlight the network of kilometer-scale fractures in the base, remote sensing techniques were used. The map of lineaments obtained after processing of satellite images discretized the study area into blocks aquifers. This is a new approach in the study of the circulation of groundwater in hard-rock which allows going from a regional view to a local scale. The blocks were delimited by opened or clogged fractures that can have a conducting or watertight function, even a capacitor role. Statistical and fractal analyses of the geometric block parameters showed that those ones revealed the connectivity degree and the importance of the small fractures (fissured layer) in groundwater flow in hard-rock. This report is confirmed by high yields observed in the small blocks.","PeriodicalId":7661,"journal":{"name":"American Journal of Scientific and Industrial Research","volume":"119 3 1","pages":"208-220"},"PeriodicalIF":0.0,"publicationDate":"2012-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83424243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Heat Load and its Effects on Fluid Friction Factor in Corrugated Pipes 波纹管热负荷及其对流体摩擦系数的影响
American Journal of Scientific and Industrial Research Pub Date : 2012-08-01 DOI: 10.5251/AJSIR.2012.3.4.241.251
P. Nyarko
{"title":"Heat Load and its Effects on Fluid Friction Factor in Corrugated Pipes","authors":"P. Nyarko","doi":"10.5251/AJSIR.2012.3.4.241.251","DOIUrl":"https://doi.org/10.5251/AJSIR.2012.3.4.241.251","url":null,"abstract":"In this paper, we investigate the effect of heat load on the fluid friction factor for laminar flow of a 2D axisymmetric straight corrugated pipe. Some clever assumptions are made on the NavierStokes equations to derive analytic expressions for computing the friction factor for the flow in terms of average velocity, density of the fluid, pressure drop and Reynolds number. The coupled momentum and energy equations are solved numerically and the effect of the heat load on the friction factor and hence the computed head loss in corrugated pipes/hoses analyzed. A new geometry is introduced for computing quasi-periodicity in pipes whose corrugations are periodically positioned. This has a positive effect of reducing instabilities in the solution and shows interesting features of the periodic pressure profile. Computational time and CPU memory have been drastically reduced as a result of simulating only one period as a true representation of an infinitely long pipe in which the flow is fully developed. We show that the heat load reduces the friction factor in corrugated pipes, this presupposes that pump requirements in the tropics are different from temperate regions for the same work done. The Moody Diagram shows a plot of the friction factor and Reynolds number at different corrugation heights without the effect of varying heat load. In this paper we show a diagram of the friction factor and Reynolds numbers at varying inlet and wall temperatures at a constant corrugation height. Furthermore we show that when flow is fully developed, periodizing the temperature on the boundary does not affect the flow.","PeriodicalId":7661,"journal":{"name":"American Journal of Scientific and Industrial Research","volume":"46 1","pages":"241-251"},"PeriodicalIF":0.0,"publicationDate":"2012-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82225569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
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