International Journal of Engineering Research Updates最新文献_第4页

Air pollution mitigation technology factors for vessels and locomotives in Apapa seaport, Nigeria 尼日利亚阿帕帕海港船舶和机车空气污染缓解技术因素

International Journal of Engineering Research Updates Pub Date : 2022-01-30 DOI: 10.53430/ijeru.2022.2.1.0023

Okechukwu Julius Anyanwu, Chimma Catherine Obasi, Akpufu Imorataria Dogood, Elkiakim Pawara Kim, Onyinechi Preciousfaith Erumaka

{"title":"Air pollution mitigation technology factors for vessels and locomotives in Apapa seaport, Nigeria","authors":"Okechukwu Julius Anyanwu, Chimma Catherine Obasi, Akpufu Imorataria Dogood, Elkiakim Pawara Kim, Onyinechi Preciousfaith Erumaka","doi":"10.53430/ijeru.2022.2.1.0023","DOIUrl":"https://doi.org/10.53430/ijeru.2022.2.1.0023","url":null,"abstract":"The International Maritime Organisation (IMO) on 26th October, 2018 adopted an amendment to the Annex of the protocol of 1997 to amend the international convention for the prevention of pollution from ships. Annex VI regulations provides regulations for the prevention of air pollutions from ships, to comply with this requirement in Apapa seaport, this research work therefore is on air pollution mitigation technology factors for vessels and locomotives in Apapa seaport. To elicit responses for the study, specific objectives in line with the aim of the study were formulated while hypotheses and research questions were also formulated to align with the objectives of the study. Data were source from 500 respondents from Apapa Seaport using APOLMASTRA instrument. The instrument was validated and was also subjected to reliability which has internal consistency of 0.8r which was used for data collection. A test re-test method was used to determine the reliability of the instrument, the resulted was appropriately scored. The data obtained were analyzed using both descriptive and inferential statistics. The results from the Factor Analysis and Principal Component Analysis show that there are air pollution mitigation factors for ocean going and harbour vessels in Apapa seaport, alternative fuel significantly impact on air pollution mitigation in Apapa seaport and that alternative marine power or cold ironing does not exist in Apapa seaport. Recommendations were made towards adopting appropriate mitigation technologies in Apapa seaport.","PeriodicalId":423246,"journal":{"name":"International Journal of Engineering Research Updates","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126459923","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

Analysis of project financing sources and their effects on projects’ costs in Nigerian construction domain. 尼日利亚建筑领域项目融资来源及其对项目成本的影响分析。

International Journal of Engineering Research Updates Pub Date : 2021-12-30 DOI: 10.53430/ijeru.2021.1.2.0048

Obi L. E., Uwanugo, R. G., Uchejiora M Eng

{"title":"Analysis of project financing sources and their effects on projects’ costs in Nigerian construction domain.","authors":"Obi L. E., Uwanugo, R. G., Uchejiora M Eng","doi":"10.53430/ijeru.2021.1.2.0048","DOIUrl":"https://doi.org/10.53430/ijeru.2021.1.2.0048","url":null,"abstract":"This research is on Project Financing in Nigeria. It examines the problems of project financing in the country, which include the following: Lack of adequate sources of finance for the development of projects; lack of information on appropriate sources of finance for projects development; failure of applications to the appropriate finance sources which in most cases result to project abandonment and, or project cost over-run. In attempting to prefer solutions to these problems, a critical analysis of the collected data was carried out using the following decision criteria in carrying out the financial appraisal of the studied projects: Simple inspection method, Cost-Benefit analysis, Equivalent uniform annual cash flow (EUACF), Internal rate of return (IRR), Present value (Worth). The results of the study show that most public projects financed using direct financing method are abandoned due to one problem or another. Contractor financing was, therefore, applied in financing such projects. In conclusion, the research revealed that the economic system in operation determines the source(s), of finance for any project. In view of the findings of the research, it is recommended that a complete re-organization of the existing institutional framework of the project financing sector in the country be carried out.","PeriodicalId":423246,"journal":{"name":"International Journal of Engineering Research Updates","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115016202","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

Food bank in the context of humanitarian assistance supply chain: Systematic research 人道主义援助供应链背景下的粮食银行:系统研究

International Journal of Engineering Research Updates Pub Date : 2021-12-30 DOI: 10.53430/ijeru.2021.1.2.0052

Thiago de Souza Borges Ordeno, Nathalia Holanda de Assumpção, Juliano Bertolotti Moura, Márcia Marcondes Altimari Samed

引用次数: 0

Investigation of moisture absorption rate and diffusivity of plant fibre-reinforced composites 植物纤维增强复合材料吸湿率和扩散率的研究

International Journal of Engineering Research Updates Pub Date : 2021-12-30 DOI: 10.53430/ijeru.2021.1.2.0047

Obi LE, Uwanugo R.G. Uchejiora

{"title":"Investigation of moisture absorption rate and diffusivity of plant fibre-reinforced composites","authors":"Obi LE, Uwanugo R.G. Uchejiora","doi":"10.53430/ijeru.2021.1.2.0047","DOIUrl":"https://doi.org/10.53430/ijeru.2021.1.2.0047","url":null,"abstract":"This research investigated the moisture absorption rate and diffusivity of plant Fibers-reinforced-composites; using bamboo fiber, raffia and coconut fibers through laboratory experimental investigations. The major limitation of using natural fibers in durable composite applications are their high moisture absorption and poor dimensional stability (swelling); and this swelling of fibers causes micro-cracking and degradation of the composites. In this investigation, the fibers were treated with sodium hydroxide (NaOH) chemical and acetylation to decrease the hydroxyl group in the fibers. Experimental results reveal that the moisture absorption and degree of swelling of the treated bamboo raffia and coconut fiber composites are 25 - 35% lower than those of composites produced with untreated bamboo, raffia and coconut fibers. Experimental results also show that strong intermolecular fiber-matrix bonding decreases the rate of moisture absorption in bio-composites. The diffusivity of the bamboo, raffia and coconut fibers-reinforced-composites for 24hrs at 1000C were experimentally measured to be 4.91, 3.33, and 3.94 mm2/sec respectively. The results showed that when these fiber plant materials are treated with sodium hydroxide (NaON) the diffusivity rate of the fiber reinforced composite material is brought under considerable control and its dimensional stability immensely enhanced though improved strong intermolecular fiber-matrix bonding and the reduction of swelling.","PeriodicalId":423246,"journal":{"name":"International Journal of Engineering Research Updates","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123577390","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

Transition to international energy economic equivalent 向国际能源经济等值过渡

International Journal of Engineering Research Updates Pub Date : 2021-06-30 DOI: 10.53430/ijeru.2021.1.1.0043

Evgeniy Bryndin

{"title":"Transition to international energy economic equivalent","authors":"Evgeniy Bryndin","doi":"10.53430/ijeru.2021.1.1.0043","DOIUrl":"https://doi.org/10.53430/ijeru.2021.1.1.0043","url":null,"abstract":"Energy resources are key to the economy. Firstly, any processes in the production sector are associated with energy consumption. Energy costs permeate all areas of material production, are the most important and integral part of both core and working capital. Secondly, energy resources are currently scarce and define the limits of economic development. At present, the issues of improving energy efficiency from the sectors of the economy are given great attention. For the implementation of programs to increase economic efficiency, the development of theoretical provisions and methodological foundations of energy economic assessment of production is of great importance, there is a variation in the energy equivalents per waste of production resources offered by standards for different types of energy. Considering energy issues in economic systems, economic energy is not found in the relevant classifications, but experts consider the allocation of such a category in the theory of economic development to be timely, and this category fully meets all economic indicators. To do this, it is necessary to determine the energy equivalent for each energy source. The article assumes the calculation of energy equivalents expressed by rational numbers. The use of energy equivalents allows you to move to a single measure of energy for all types. A single measure of energy allows you to move to a single international currency for financial and economic international cooperation.","PeriodicalId":423246,"journal":{"name":"International Journal of Engineering Research Updates","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133833189","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

Significance of mathematics and geometry-formation of temples in India: The golden era of evolution 数学和几何的意义——印度寺庙的形成:进化的黄金时代

International Journal of Engineering Research Updates Pub Date : 2021-05-30 DOI: 10.53430/ijeru.2021.1.1.0056

Santoshi Misra, Sirisha David

{"title":"Significance of mathematics and geometry-formation of temples in India: The golden era of evolution","authors":"Santoshi Misra, Sirisha David","doi":"10.53430/ijeru.2021.1.1.0056","DOIUrl":"https://doi.org/10.53430/ijeru.2021.1.1.0056","url":null,"abstract":"Temples are a rich source of powerhouse filled with magnificent effects of acquiring peace and divine knowledge in understanding the oneness of creation and the creator. The entire cosmos reflects in knowing the supreme intelligence of the creator residing in the thoughtful minds of the humankind. Temples in India have always been an epitome of our enriching culture, heritage and ancient history carved beautifully on the walls and ceilings in imparting the principles of glorifying life led during the past which needs to be carried to the future generations. Mathematics has always been at the forefront going hand in hand with temple architecture giving it perfect shape and geometry for the holistic development of society. The present article is an attempt to focus on the geometry involved in the construction of ancient temples which served the purpose of providing the techniques and methods in knowing the divine power spread infinitely among the cosmos. Modernization of humankind globally has been evolving massively in terms of technology, comfort and wealth but is subjected to mental stress, trauma, and depressive life. Keeping in tune with nature and cosmos helps in becoming one with the supreme power. Modern temples being constructed today with archeology need to look at the mastery of mathematics and art with which the ancient temples were built.","PeriodicalId":423246,"journal":{"name":"International Journal of Engineering Research Updates","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131316547","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 review on consequences of climate change in Pakistan 气候变化对巴基斯坦的影响综述

International Journal of Engineering Research Updates Pub Date : 2021-05-30 DOI: 10.53430/ijeru.2021.1.1.0054

Aiman Shah, Rabia Naveed, Iqra Khalid, Aisha Khan

引用次数: 0

Desliming process of kuru columbite (Plateau state) using scrubbing method towards niobium pentoxide recovery 库鲁柱状岩(高原态)擦洗法脱泥工艺回收五氧化铌

International Journal of Engineering Research Updates Pub Date : 2021-05-30 DOI: 10.53430/ijeru.2021.1.1.0044

Alabi OO, Gbadamosi YE, Akinpelumi T

{"title":"Desliming process of kuru columbite (Plateau state) using scrubbing method towards niobium pentoxide recovery","authors":"Alabi OO, Gbadamosi YE, Akinpelumi T","doi":"10.53430/ijeru.2021.1.1.0044","DOIUrl":"https://doi.org/10.53430/ijeru.2021.1.1.0044","url":null,"abstract":"The presence of niobium in nature is associated with pegmatite in the form of columbite which necessitates its recovery process from the crude. Kuru Columbite Ore was sourced from ten different pits properly mixed to obtain homogenization and 20 kg was sampled out using the random sampling method, it was ground using the Denver milling machine and prepared towards characterization followed by desliming process by repeated scrubbing technique. Chemical characterization of the crude sample was carried out using Energy Dispersive X-ray Fluorescence Spectrometer (ED-XRF). Mineralogical analysis was carried out using X-ray Diffractometer (XRD) and Scanning Electron Microscope equipped with Energy Dispersive Spectrometer (SEM-EDS). 100 g of the crude sample using the cone and quartering method was sampled out for the particle size analysis and 1000 g each of sieve fractions –710+500 µm, –500+355 µm, –355+250 µm, –250+180 µm, and –180+125 µm was used for the scrubbing process. ED-XRF analysis revealed that the crude sample contains 11.4% Nb2O5, 39% SiO2, 6.56% Fe2O3, 0.34% TiO2 and other compound in trace forms. Mineralogical analysis of the Kuru columbite revealed the present of niobium oxide, iron tantalum, with other associated minerals. SEM images revealed that the ore contains coarse grains of niobium pentoxide which are disperse within the matrix of the ore, this implies that it requires less energy to liberate niobium pentoxide within the matrix of its ore and are evenly dispersed. The EDS of these microstructures revealed the presence of O, Mg, Al, Si, and Fe. The particle size analysis revealed the liberation size to be -250+180 µm and the chemical analysis of the Kuru Columbite ore of the concentration test using scrubbing process revealed that the economic liberation (-250+180 µm) have the highest assay of 48.6% Nb2O5. Kuru Columbite Ore has successfully being upgraded from 11.4% to 48.6% via repeated scrubbing process.","PeriodicalId":423246,"journal":{"name":"International Journal of Engineering Research Updates","volume":"7404 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125032122","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