• <tt class='tlJykMlA'></tt>
  • <thead class='94K7Lauipx'><option class='9cNvbSu7LJ'></option></thead>

    <em class='jepytdnyfeW3'><b class='oR1Ys12nk'><td class='6rzzLTN'></td></b></em>

  • <dl class='Td0EmkF'><b class='qoWhaibfJ9'></b></dl>

  • <span class='lS1G'></span>

    oalib

    OALib Journal期刊

    ISSN: 2333-9721

    费用:99美元

    投稿

    时间不限

    2020 ( 10 )

    2019 ( 100 )

    2018 ( 108 )

    2017 ( 116 )

    自定义范围…

    匹配条件: “John Jiya Musa” ,找到相关结果约33337条。
    列表显示的所有文章,均可免费获取
    第1页/共33337条
    每页显示
    Evaluation of the Lubricating Properties of Palm Oil
    John Jiya MUSA
    Leonardo Electronic Journal of Practices and Technologies , 2010,
    Abstract: There has been an increase in effort to reduce the reliance on petroleum fuels for energy generation and transportation throughout the world. Among the proposed alternative fuels is biodiesel. Over the years, a little attention was paid to the industrial use of palm oil. Laboratory tests such as viscosity, fire point, flash point, pour point and densities were conducted on raw palm oil and bleached palm oil using standard procedures. The flash points of palm oil and the bleached sample are 250 and 301°C while their fire points are 260 and 308°C while the flash and fire points of the SAE 40 and SAE 30 are 260/300(°C) and 243/290(°C) respectively. It was discovered that palm oil has a better prospect as lubricating oil if necessary improvements are made.
    Soil Salinity and Water Logging Problem Due to Irrigation and Drainage: A Case Study of Chanchaga Irrigation Project
    Ogbonnaya Chukwu,John Jiya Musa
    Agricultural Journal , 2013,
    Abstract: In the arid region, drainage ditches are necessary to remove water required for leaching undesirable salts from the soil and the disposal of excess rainfall. Chemical and organic changes in soil conditions are anticipated under irrigation. Several methods are used to irrigate farm lands throughout, the world but the method used in this study area is, the surface irrigation method. Sterilized bottle containers were used to collect water and soil samples from the study area. The samples were given a pre-treatment of being stored in an air conditioned room with temperature not more than 25 C to reduce microbial activities. The 5 samples had a constant chloride ion (Cl-) of 20 mg L 1, Sodium Chloride (NaCl) of 32.8 mg L 1, iron (Fe+2) of 0.7 mg L 1 and pH of 7. The pH of the water samples was found to be within the borderline, which implies that the water used for irrigation in the study area was neither acidic nor alkaline.
    Conditional Heteroscedasticity in Streamflow Process: Paradox or Reality?
    Martins Yusuf Otache, Isiguzo Edwin Ahaneku, Abubakar Sadeeq Mohammed, John Jiya Musa
    Open Journal of Modern Hydrology (OJMH) , 2012, DOI: 10.4236/ojmh.2012.24010
    Abstract: The various physical mechanisms governing the dynamics of streamflow processes act on a seemingly wide range of temporal and spatial scales; almost all the mechanisms involved present some degree of nonlinearity. Against the backdrop of these issues, in this paper, attempt was made to critically look at the subject of Autoregressive Conditional Heteroscedasticity (ARCH) or volatility of streamflow processes, a form of nonlinear phenomena. Towards this end, streamflow data (both daily and monthly) of the River Benue, Nigeria were used for the study. Results obtained from the analyses indicate that the existence of conditional heteroscedasticity in streamflow processes is no paradox. Too, ARCH effect is caused by seasonal variation in the variance for monthly flows and could partly explain same in the daily streamflow. It was also evident that the traditional seasonal Autoregressive Moving Average (ARMA) models are inadequate in describing ARCH effect in daily streamflow process though, robust for monthly streamflow; and can be removed if proper deseasonalisation pre-processing was done. Considering the findings, the potential for a hybrid Autoregressive Moving Average (ARMA) and Generalised Autoregressive Conditional Heteroscedasticity (GARCH)type models should be further explored and probably embraced for modelling daily streamflow regime in view of the relevance of statistical modelling in hydrology.
    AGRICULTURAL POST-HARVEST WASTE GENERATION AND MANAGEMENT FOR SELECTED CROPS IN MINNA, NIGER STATE, NORTH CENTRAL NIGERIA
    ADEOYE, PETER ADEREMI,ADEBAYO, SEGUN EMMANUEL,MUSA, JOHN JIYA
    Journal of Applied Sciences in Environmental Sanitation , 2011,
    Abstract: Post-harvest waste generations in selected local government areas of Niger state, North central Nigeria was evaluated. This is with a view to knowing the types, quantity and strength of these resides. The method adopted was investigative approach. Questionnaire was administered and results collected. From the study, maize, groundnut and rice are being produced in large quantity in the place visited. Average grain-straw ratio for maize was 1.34:1, grain-straw husk ratio for rice was 1.28:1 while nut to shell ratio for groundnut was 3.07:1. For maize alone in twelve local governments, 3,423 tonnes of waste is produced, 3,481 tonnes for Rice and 1,742 tonnes of groundnut waste is produced. The major management measure adopted now is burning which is not environmentally friendly. The results gotten from the study can be used to design waste management plants for these local governments.
    Evaluation of Temporal Changes in Deep Well Water Quality in Igabi Local Government Area of Kaduna State
    John Jiya Musa, Otuaro Ebierni Akpoebidimiyen, Mohammed Tanimu Musa, Pius Olusegun Olufemi Dada, Elijah Tsado Musa
    Journal of Environmental Protection (JEP) , 2020, DOI: 10.4236/jep.2020.111003
    Abstract: The research work was carried out in Igabi Local Government of Kaduna State. Thirty water samples from boreholes were randomly collected within the major towns in November to April (Dry), and May to October (Rainy season). The samples were analyzed for physical, chemical, and bacteriological parameters and to observe any changes in the groundwater quality of the area. Analysis of variance (ANOVA), Pearson Correlation were performed on the data obtained using SPSS 10.0 for a window for significant variations and inter-element relationship. High mean turbidity was recorded in boreholes in Danfili (12.2 NTU), Kwarau (6.2 NTU). Mean turbidity of 4.3 NTU was recorded in Dry season for wells with Rigachikun having 5.1 NTU. It was observed that a negative correlation exists between well depth and heavy metal concentration. There was also a linear relationship of 0.686 between well distance and nitrate (faecal contaminant). Mean value for Fluoride (0.22 mg/l), Sodium (20.78 mg/l), Calcium (15.7 mg/l), Iron (0.013 mg/l), Nitrate (3.69 mg/l), Cadmium (0.00102 mg/l) Chloride (22.107 mg/l) recorded for sampled wells were all within WHO standard. A high value of 24 mg/l and 25 mg/l for Nitrate was recorded in Saminaka Road and Danfili. An indication of contamination during the rainy season indicates surface-groundwater intrusion (influx). The results of the bacteriological analysis indicated that most wells sampled have a range of 1 cfu/100 ml to 7 cfu/100 ml with Danfili Mani having the highest value (7 cfu/100 ml) which make it unsaved (not Potable).
    Effect of Water Stress on the Yield of Selected Vegetable Crops in the Southern Guinea Savannah Ecological Zone of Nigeria  [PDF]
    John Jiya Musa, Johnson Kayode Adewumi, Ebierin Akpoebidimiyen Otuaro, Mohammed Tanimu Musa
    Open Access Library Journal (OALib Journal) , 2019, DOI: 10.4236/oalib.1105938
    Abstract:
    Water stress effect on the yield of tomato (Lycopersicum Esculentum) and onion (AlliumCepa) crops was carried. This study is aimed at understanding the required amount of water needed by onion and tomato plants daily and to predetermine the yield expected from scheduled irrigation under limited water supply. Randomised complete block design experimental layout was employed and replicated five times. The irrigation interval observed was controlled on the first block of regular four days; the second, third and fourth blocks were irrigated six, seven, and nine days respectively. The result of onion showed the highest yield of 31.5 kg/plot (12 t/ha) from the four days regular irrigation interval, followed by six days irrigation interval with a yield of 30.9 kg/plot (11.77 t/ha). The lowest yield of 18.3 kg/plot (6.97 t/ha) was obtained for the nine days irrigation interval. Similarly, the highest yield of 43.1 kg/plot (16 t/ha) in regular four days irrigation interval and the lowest yield of 13.4 kg/plot (5.1 t/plot) for nine days interval was recorded for tomato. The result of this study shows that irrigating at an interval of four to five days has the highest significant yield of 16 t/ha and under critical conditions, the farmer can irrigate seven days as up to 65% - 70% yield was obtained. Irrigation should not be scheduled nine (9) days because about 42% of the yield is lost. It is therefore concluded that the yield water use relationship shows that both onion and tomato crops increases with an increase in the rate of seasonal evapotranspiration provided water application rate does not exceed the required amount at the required amount.
    SOLVENT EXTRACTION AND CHARACTERIZATION OF OIL FROM AFRICAN STAR APPLE (CHRYSOPHYLLUM ALBIDUM) SEEDS
    Adebayo, Segun Emmanuel,Orhevba, Bosede Adelola,Adeoye, Peter Aderemi,Musa, John Jiya
    Academic Research International , 2012,
    Abstract: African Star Apple (Chrysophyllum albidum) is one fruit of great economic value in tropical Africa due to its diverse industrial, medicinal and food uses. Its seeds have also been found tohave a number of beneficial uses. In this study, oil was extracted from the seeds of Chrysophyllum albidum using normal hexane as extracting solvent. The extraction was carried out at a temperature of 650C at 3 – 4 hours extraction time. Solvent extraction isknown to be the best method of extracting oil from low oil bearing seeds. The method used is aimed at determining the percentage oil yield. At a range of 3 - 4 hours extraction time and atemperature of 650C, the average oil yield obtained was 10.71%. The characterization was conducted to determine the physical and chemical properties of the extracted oil shows that the oil was deep red in colour, liquid at 280C with a characteristics smell, density of 0.89kg/m3, solidification temperature of -20C, boiling point of 620C, saponification value of 177.30 mg/KOH/gram, acid value of 5.20% free fatty acid value of 2.60%, peroxide value of 1.65 meq/kg, refractive index of 1.4672 at 31.20C. These results suggest that Chrysophyllumalbidum seeds may be a viable source of oil going by its oil yield. Furthermore, the studied characteristics of the oil extracted shows hat it may be used for many domestic and industrial purposes in Nigeria.
    Statistical Variation of Physico-Chemical Properties of Shallow Wells Used for Agricultural Activities in an Agrarian Community, North Central Nigeria  [PDF]
    John Jiya Musa, Martins Yusuf Otache, Elijah TsadoMusa, Michael Eneojo Omale, Ibrahim Ibrahim Yahuza Yerima
    Open Access Library Journal (OALib Journal) , 2019, DOI: 10.4236/oalib.1105683
    Abstract:
    Water quality is gradually falling due to human activities, thus making clean water for both domestic and agricultural activities scarce. Population growth is expected to directly or indirectly move up from its current status by about 55%, thus increasing water stress or severe water scarcity over the next generation. This study is aimed at statistically ascertaining and determining the physico-chemical properties of some hand-dug wells in Niykangbe, an agrarian community in Nigeria. A total of twenty five samples were collected for each year during the dry season for a period of three years. Replicate samples were collected on monthly bases for a period of five months during the years 2014, 2015 and 2016. The results obtained indicated that aluminum, cyanide and manganese were not present in the water samples. The pH ranged between 7.10 and 7.70, electric conductivity ranged between 157 and 467 μs/cm and the temperature ranged between 30℃ and 33℃. The nitrate content ranged between 5.00 and 67.30 mg/l while nitrite ranged between 0.02 and 0.09 mg/l. The analysis should be that most of the parameters were still within the recommended standards of NSDWQ and WHO. It was concluded that intermittent test is carried out to ascertain the level of fitness of the various water samples for both domestic and agricultural use.
    Fish Pond Effluent Effect on Physicochemical Properties of Soils in Southern Guinea Savanna, Nigeria  [PDF]
    John Jiya Musa, Pius Olusegun Olufemi Dada, Johnson Kayode Adewumi, Otuaro Ebierni Akpoebidimiyen, Elijah Tsado Musa, Martins Yusuf Otache, Seun Yusuf
    Open Access Library Journal (OALib Journal) , 2020, DOI: 10.4236/oalib.1105990
    Abstract:
    This work studied the effect of fish pond wastewater, proximate and mineral analyses of the fish feeds from commercial fish ponds on receiving soils in the southern Guinea Savanna ecological zone of Minna, Nigeria. The study con-ducted during the dry seasons of the years 2015 and 2016 between January and May. Four sets of soil samples were collected at varying distances from the various fish ponds and analysed for physicochemical properties, Particle size analysis and Exchangeable Acidity. Similarly, two different sets of water samples were collected each from various farms studied and analysed for physicochemical properties such as pH, Ec (Electrical conductivity), TDS (Total dissolved solids), Alkalinity, Total Hardness, Turbidity, Temperature, DO (Dissolved Oxygen), BOD (Biological oxygen demand), Calcium, Magnesium, Sodium and Potassium. Average results obtained for the two dry seasons for the soil samples around the fish farms showed that: pH 6.33 - 7.24, Organic Carbon 2.03 - 6.00 g/kg, Available Phosphorus 7 - 10 mg/kg, Total Nitrogen 0.95 - 2.10 g/kg, Exchangeable Bases and Exchangeable Acidity 0.02 - 0.06 Cmol/kg were within the permissible limits of FAO and WHO. The various parameters were within the permissible limits for fish production. The fish wastewater had Electrical Conductivity 118 - 230 μS/cm, pH 6.79 - 7.10, and Biological Oxygen Demand 3.0 - 6.0 mg/L. In conclusion, the wastewater from fish farms is good sources of fertiliser to the surrounding farmlands.
    Impacts of Derived Tin Mining Activities on Landuse/Landcover in Bukuru, Plateau State, Nigeria
    Jiya Solomon Ndace,Musa Haruna Danladi
    Journal of Sustainable Development , 2012, DOI: 10.5539/jsd.v5n5p90
    Abstract: Tin mining activity which was a predominant activity around the Jos Plateau has caused considerable erosion damages to landuse/landcover. Uncontrolled effects through monitored activities do not protect future environmental security. This paper therefore, assesses impact of derived mining activities on landuse/ landcover in Bukuru area in Jos south of Nigeria to determine the extent of degraded mine lands. A time series analysis of Landsat MSS satellite image November 1975, Landsat TM satellite image acquired in 1989, and Landsat ETM acquired October 2005 of the study area were used. Landuse/ landcover were classified from the images using a hybrid manual and spectral based approach. The result shows that out of the 1,574.13sq.km total size of the study area, the degraded area/land, Built-up area, and water bodies increased by 24.58%, 18.51% and 7.57% respectively. Whereas Arable land (farm and grazing land) and forest reserve has decreased by 106.60sq.km (14.16%), and 264.89sq. (35.18%) respectively. It was recommended that comprehensive mitigation studies against these damages should be performed, and regular inspections should be executed to keep these activities of tin mining under control. Modern technologies should be used to obtain more effective results from these studies.
    第1页/共33337条
    每页显示


    竞彩网app下载安装
    竞彩网app下载安装 (c) 2008-2017 Open Access Library. All rights reserved.

    竞彩网app下载安装

  • <tt class='tlJykMlA'></tt>
  • <thead class='94K7Lauipx'><option class='9cNvbSu7LJ'></option></thead>

    <em class='jepytdnyfeW3'><b class='oR1Ys12nk'><td class='6rzzLTN'></td></b></em>

  • <dl class='Td0EmkF'><b class='qoWhaibfJ9'></b></dl>

  • <span class='lS1G'></span>