Journal of Applied Sciences and Environmental Management最新文献_第6页

Challenges Facing National Park Management: A Case Study of Kainji Lake National Park, Nigeria 国家公园管理面临的挑战：尼日利亚凯恩吉湖国家公园案例研究

Journal of Applied Sciences and Environmental Management Pub Date : 2023-11-28 DOI: 10.4314/jasem.v27i11.11

J. Onihunwa, O. Akande, E. Irunokhai, Mohammed, A. Wealth

{"title":"Challenges Facing National Park Management: A Case Study of Kainji Lake National Park, Nigeria","authors":"J. Onihunwa, O. Akande, E. Irunokhai, Mohammed, A. Wealth","doi":"10.4314/jasem.v27i11.11","DOIUrl":"https://doi.org/10.4314/jasem.v27i11.11","url":null,"abstract":"Generally, the problems associated with national park management in Nigeria include loss of wildlife habitats, poaching, overhunting, and illegal logging and grazing. Hence, the objective of this study is to evaluate the numerous challenges facing National Park Management in Nigeria using the Kainji Lake National Park as a case study using personal interview and administration of structural questionnaire to select one hundred and ninety four (194) respondents from the total population and data obtained was analyzed using descriptive statistics. The result of demographic characteristics of respondents sampled indicates that the male respondents were dominant (75.7%) and majority of the 51.4% of the sampled populations’ falls between age group 35-44 years. The finding further revealed that majority of the respondents was married (71.0%). 59.8% of the respondents had tertiary education while 40.2% had secondary education. Also, majority of the respondents are Muslims (71.0%) while 29.0 are Christian. Majority of the respondents (52.3%) had worked between 11-20 years while ≥21 are the least with 17.8%. The major challenges confronting Kainji Lake National Park as identified by the park staffs are insufficient fund and lack/shortage of manpower.The effects of these challenges on Wildlife management are reduction in management practices, makes work difficult and reduction in wildlife population. The measures taken in managing the identified challenges in the study area are provision of incentives/bonus to the staff, adequate funding, provision of modern equipment and facilities etc. The study therefore concludes that for effective conservation of biodiversity to be achieved in this premier national park of Nigeria, the identified challenges must be addressed.","PeriodicalId":15093,"journal":{"name":"Journal of Applied Sciences and Environmental Management","volume":"264 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139226560","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

Bioproduction of Ethanol by Saccharification-Fermentation Process using Sweet Potato (ipomoea batatas) and Irish Potato (solanum tuberosum) as Substrate 以甘薯（ipomoea batatas）和爱尔兰马铃薯（solanum tuberosum）为底物，通过糖化-发酵过程生物生产乙醇

Journal of Applied Sciences and Environmental Management Pub Date : 2023-11-28 DOI: 10.4314/jasem.v27i11.9

Ayodele, Olajide, Lo, AJ Adepoju, Esan, NB Omodara

{"title":"Bioproduction of Ethanol by Saccharification-Fermentation Process using Sweet Potato (ipomoea batatas) and Irish Potato (solanum tuberosum) as Substrate","authors":"Ayodele, Olajide, Lo, AJ Adepoju, Esan, NB Omodara","doi":"10.4314/jasem.v27i11.9","DOIUrl":"https://doi.org/10.4314/jasem.v27i11.9","url":null,"abstract":"Ethanol generally are renewable liquids usually produced from sources which can be easily replenished, therefore, the production of ethanol by fermentation using substrate such as carbohydrate crops may provide an economically competitive source of energy by its incorporation into gasoline. Hence, the objective of this paper is the bioproduction of ethanol by saccharification-fermentation process using sweet potato (Ipomoea Batatas) and Irish potato (Solanum Tuberosum) with their peels as substrate with standard techniques for evaluation. The infrared (IR) spectroscopic data of potato extracts revealed that the absorption band of hydroxyl (OH) group of an alcohol ranges from 3747.03 - 3444.40 cm-1 in all samples analyzed. The 1H-NMR in CDCl3 (60 MHz), the proton at δH 4.09-4.69 appearing as singlet, integrating for one proton which indicates an hydroxyl group, another proton signal at δH 3.46-3.69, appearing as quartet with coupling constant of 7.2 Hz and each integrating for 2 protons, assigned to the methylene group next to the methyl group. The peak observed at δH 0.95-1.96 ppm, integrating for three protons with coupling constant of 6.6 Hz, which was assigned to the methyl group on the ethanol structure. The 13C-NMR spectrum of all the samples, showed an intense peak at 57.1-57.9 ppm which accounts for methylene peak on ethanol and an upfield carbon signal at 17.4-18.0, which was assigned to the methyl carbon in ethanol structure. The Nuclear Magnetic Resonance (NMR) results showed the presence of ethanol in the samples analyzed. Consequently, the refractive index result showed that all the extracts have a significant level of alcohol content.","PeriodicalId":15093,"journal":{"name":"Journal of Applied Sciences and Environmental Management","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139221552","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

Application of Deep Neural Network-Artificial Neural Network Model for Prediction Of Dew Point Pressure in Gas Condensate Reservoirs from Field-X in the Niger Delta Region Nigeria 应用深度神经网络-人工神经网络模型预测尼日利亚尼日尔三角洲地区 X 油田天然气凝析油储层的露点压力

Journal of Applied Sciences and Environmental Management Pub Date : 2023-11-28 DOI: 10.4314/jasem.v27i11.35

P. U. Abeshi, T. I. Oliomogbe, J. O. Emegha, V. A. Adeyeye, Y. O. Atunwa

{"title":"Application of Deep Neural Network-Artificial Neural Network Model for Prediction Of Dew Point Pressure in Gas Condensate Reservoirs from Field-X in the Niger Delta Region Nigeria","authors":"P. U. Abeshi, T. I. Oliomogbe, J. O. Emegha, V. A. Adeyeye, Y. O. Atunwa","doi":"10.4314/jasem.v27i11.35","DOIUrl":"https://doi.org/10.4314/jasem.v27i11.35","url":null,"abstract":"Reservoirs of natural gas and gas condensate have been proposed as a potential for providing affordable and cleaner energy sources to the global population growth and industrialization expansion simultaneously. This work evaluates reservoir simulation for production optimization using Deep Neural network - artificial neural network (DNN-ANN) model to predict the dew point pressure in gas condensate reservoirs from Field-X in the Niger Delta Region of Nigeria. The dew-point pressure (DPP) of gas condensate reservoirs was estimated as a function of gas composition, reservoir temperature, molecular weight and specific gravity of heptane plus percentage. Results obtained show that the mean relative error (MRE) and R-squared (R2) are 0.99965 and 3.35%, respectively, indicating that the model is excellent in predicting DPP values. The Deep Neural Network - Artificial Neural Network (DNN-ANN) model is also evaluated in comparison to earlier models created by previous authors. It was recommended that the DNN - ANN model developed in this study could be applied to reservoir simulation and modeling well performance analysis, reservoir engineering problems and production optimization.","PeriodicalId":15093,"journal":{"name":"Journal of Applied Sciences and Environmental Management","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139223196","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

Productivity Performance Assessment of a Firm: A Case Study of Infrastructural Construction Company in Nigeria 企业生产力绩效评估：尼日利亚基础设施建设公司案例研究

Journal of Applied Sciences and Environmental Management Pub Date : 2023-11-28 DOI: 10.4314/jasem.v27i11.6

O. Ogbeide, N. C. Ehirim

{"title":"Productivity Performance Assessment of a Firm: A Case Study of Infrastructural Construction Company in Nigeria","authors":"O. Ogbeide, N. C. Ehirim","doi":"10.4314/jasem.v27i11.6","DOIUrl":"https://doi.org/10.4314/jasem.v27i11.6","url":null,"abstract":"Productivity measures how efficiently production inputs, such as labour and capital, are being used in an economy to produce a given level of output. Productivity growth constitutes an important element for modeling the productive capacity of economies. It also allows analysts to determine capacity utilization, which in turn allows one to gauge the position of economies in the business cycle and to forecast economic growth. The objective of the study is to analyze the impact of productivity, while using the inventory of the construction Company in Nigeria to investigate, measure, plan and control the productivity and performance of a firm. Data used for this study was generated through the firm's annual reports and financial statements. Multiple Linear regression Model developed was used to predict accurately the productivity level of the firm. In order to check the significant and the adequacy of the model developed, the coefficient of correlation(R), coefficient of determination (R2) and adjusted R2 were determined, with an R2 value of 0.983 and an adjusted R2 values of 0.932 obtained indicating that the model is adequate. The result of the study shows that the degree of association and correlation of the data is meritorious. Investigation revealed that factors in both external and internal work environment as well as the firm's policies are unfavorable to the enhancement of labour productivity.","PeriodicalId":15093,"journal":{"name":"Journal of Applied Sciences and Environmental Management","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139226804","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

Assessment of Microbial Loads, Species Characterization and Composition in Prawn (Macrobrachium vollenhovenii) Fillets from Major Wetlands in Akwa Ibom State, Nigeria 尼日利亚阿夸伊博姆州主要湿地对虾（Macrobrachium vollenhovenii）鱼片中微生物负荷、物种特征和组成的评估

Journal of Applied Sciences and Environmental Management Pub Date : 2023-11-28 DOI: 10.4314/jasem.v27i11.37

MU Effiong, Adeyemi

{"title":"Assessment of Microbial Loads, Species Characterization and Composition in Prawn (Macrobrachium vollenhovenii) Fillets from Major Wetlands in Akwa Ibom State, Nigeria","authors":"MU Effiong, Adeyemi","doi":"10.4314/jasem.v27i11.37","DOIUrl":"https://doi.org/10.4314/jasem.v27i11.37","url":null,"abstract":"The objective of this paper is to assess the assessment of microbial loads, species characterization and composition in prawn (Macrobrachium vollenhovenii) fillets from major wetlands (Nwaniba, Ibaka, Ibeno and Itu) in Akwa Ibom State, Nigeria. The microbial loads, species characterization and composition in prawn fillets were determined using standard microbiological procedures. Results from the study revealed total heterotrophic bacterial counts ranging from 2.10 x 104cfu/g in samples from Ibeno to 7.30 x 104cfu/g from Itu samples. Samples from Itu also recorded the highest values (3.5 x 104cfu/g) of total heterotrophic fungal counts. A total of eight bacterial (Staphilococcus aureus, S. albus, Enterobacter aerogenes, Bacillus cereus, Escherichia coli, Micrococcus luteus, Arthrobacter freundii and Salmonella ecterica) and six fungal (Candida tropicalis, Aspergillus niger, A. flavus, A. terreus, Mucor mucedo, and Rhizopus sp) species were isolated. The bacterial species, Micrococcus luteus and Arthrobacter freundii had 100% frequency of occurrence while in the fungal group it was Candida tropicalis. The presence of these pathogenic organisms in prawn samples from these wetland areas may infer possible threat to the health of prawn consumers especially when the products are undercooked or poorly processed before consumption.","PeriodicalId":15093,"journal":{"name":"Journal of Applied Sciences and Environmental Management","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139217244","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

Evaluation of Lead and Iron Content in Different Stages of Water Treatment Facilities within Otuoke and Yenagoa Metropolis, Bayelsa State, Nigeria 尼日利亚巴耶尔萨州奥图科市和耶纳戈阿市不同阶段水处理设施中铅和铁含量的评估

Journal of Applied Sciences and Environmental Management Pub Date : 2023-11-28 DOI: 10.4314/jasem.v27i11.8

OO Ogunlowo, Sakwe

引用次数: 0

Geospatial Assessment of Deforestation in Federal Capital Territory Abuja, Nigeria from 1987 to 2021 1987 至 2021 年尼日利亚阿布贾联邦首都区森林砍伐的地理空间评估

Journal of Applied Sciences and Environmental Management Pub Date : 2023-11-28 DOI: 10.4314/jasem.v27i11.13

CF Amaechi, AA Enuneku, SO Okhai, Okoduwa, Ka

{"title":"Geospatial Assessment of Deforestation in Federal Capital Territory Abuja, Nigeria from 1987 to 2021","authors":"CF Amaechi, AA Enuneku, SO Okhai, Okoduwa, Ka","doi":"10.4314/jasem.v27i11.13","DOIUrl":"https://doi.org/10.4314/jasem.v27i11.13","url":null,"abstract":"The expansion of urban areas directly leads to deforestation resulting in the loss of ecosystems and environmental problems such as soil erosion, loss of biodiversity, water pollution, air pollution, as well as climate change. This study aims to assess deforestation in the Federal Capital Territory Abuja, Nigeria from the year 1987 to 2021 using Geographical Information Systems (GIS) and Remote Sensing (RS). The maximum likelihood supervised classification method in ENVI 5.3 was employed to classify the territory into four classes, which include forestland, grassland, built up area, and surface water. An increasing trend was observed in the built up area, grassland, and surface water. However, the forestland decreased significantly from 4059.43 km2 in 1987 to 2265.28 km2 in 2021. The result indicates massive deforestation in Abuja, and it is recommended that proper urban planning and policies that will mitigate urban sprawl be initiated and implemented in Abuja. Policies that mandate house owners to plant trees and lawns in their compounds should be made and implemented, and proper conservation policies should be implemented to conserve forestland.","PeriodicalId":15093,"journal":{"name":"Journal of Applied Sciences and Environmental Management","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139224428","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

Production of Polyurethane Elastomers from Ximenia americana L (Wild Olive) Seed Oil and Diisocyanates 用美国野橄榄（Ximenia americana L）籽油和二异氰酸酯生产聚氨酯弹性体

Journal of Applied Sciences and Environmental Management Pub Date : 2023-11-28 DOI: 10.4314/jasem.v27i11.30

AE Samuel, IC Eromosele, SY Kamba, DS Samaila

{"title":"Production of Polyurethane Elastomers from Ximenia americana L (Wild Olive) Seed Oil and Diisocyanates","authors":"AE Samuel, IC Eromosele, SY Kamba, DS Samaila","doi":"10.4314/jasem.v27i11.30","DOIUrl":"https://doi.org/10.4314/jasem.v27i11.30","url":null,"abstract":"Seed oils readily undergo derivatization by alcoholysis to yield biodegradable polyols and Ximenia americana plant from the family of Olacaeae has oily seeds. Hence, the objective of this paper is to assess the production of polyurethane elastomers from Ximenia americana L (Wild Olive) Seed Oil with diisocyanates, namely, hexamethylene diisocyanate (HDI), toluene diisocyanate (TDI) and 4,4’-methylene diphenyl diisocyanate (MDI) respectively using standard procedure and characterized by Fourier-Transform Infrared Spectroscopy (FTIR), Instron Tensile Testing Machine and Thermogravimetric Analyzer (TGA). The tensile strength and tensile modulus for HDI-based polyurethane elastomers, 5.83±0.15 and 3.95±0.07 MPa respectively are higher than the corresponding ones for TDI- and MDI-based polymers. This is consistent with the highest crosslink density (γ) of 5.05×10-3 for HDI-based polymer with corresponding average molecular weight between crosslinks (Mc) of 197.87 gmol-1 The polyurethane elastomers are stable up to 250-265oC with order of stability: HDPU-1.50>MDPU-1.50>TDPU-1.50. The results showed that diol from Ximenia americana seed oil is effective for production of polyurethane elastomers with properties which are comparable to ones of the non-oil-based polymers.","PeriodicalId":15093,"journal":{"name":"Journal of Applied Sciences and Environmental Management","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139215249","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

Phytoremediation Potential of Watermelon (Citrullus lanatus) Seedlings Planted on Lead Contaminated Soil in Katsina, Nigeria 尼日利亚卡齐纳铅污染土壤上种植的西瓜（Citrullus lanatus）幼苗的植物修复潜力

Journal of Applied Sciences and Environmental Management Pub Date : 2023-11-28 DOI: 10.4314/jasem.v27i11.16

N. Usman, A. Jalo, N. Tahir, Z. H. Usman

引用次数: 0

Assessment of Correlation between Dimensions of Ball Phantom and Distortion Rate of Panoramic Radiography in Dental Cone Beam Computed Tomography 牙科锥形束计算机断层扫描中球型模型尺寸与全景射线照相失真率之间的相关性评估

Journal of Applied Sciences and Environmental Management Pub Date : 2023-11-28 DOI: 10.4314/jasem.v27i11.15

J. Rabba, F. O. Uloko, G. I. Efenji, S. O. Eghaghe, H. A. Jaafar, M. Z. M. Jafri, N. D. Osman

引用次数: 0