Analysis of Computer Based Design in Architectural and Convectional Drafting Methods in Schools. The Case of Auchi Polytechnic, Auchi

The paper compares the concepts of computer-aided design in architecture CAAD to manual drafting MD in Auchi Polytechnic Auchi These techniques are educational tools designed to train the student to become better in project design and creativity A structurallybased questionnaire was developed to measure a series of active variables of CAAD and MD The results revealed that ninety percent 90 of the HND students indicated a strong preference for CAAD while most of the OND students were not aware of CAAD software AutoCAD architecture is mostly taught at the Department and the students generally prefer to use Revit Software for their studio and design project It is realized that the students are highly interested in learning and applying CAAD in the studio and project design having discovered that CAAD proficiency through self-learning approach was estimated to be the highest out of the five considered technique

Construction Design and Sustainability in Architecture

The study aims to access the implementation of sustainable housing indicators (SHI) in the building design and construction in Ondo State, Nigeria. Generally, the overall degree of incorporating SHI in the building construction showed that Ondo Central District (OCAEZ) has the highest design compliance, while the awareness is unpopular in Ondo North District (ONAEZ) and Ondo South District (OSAEZ). Conversely, the selection of sustainability key indicators is very important at the early design stage and this would be veritable to projecting the environmental impact, energy and air quality sustainability potency of building. This development will go a long way to integrate and improve the building design and construction and enabling sustainability in building development

Dynamics of heavy metal Pollution in Tropical lagoon of Gulf of Guinea, West Africa

In this study the accumulation of Iron (Fe), Zinc (Zn), Cobalt (Co), Chromium (Cr), Cadmium (Cd), Lead (Pb) and Nickel (Ni) in sediment, water, some fish samples (Schilbe mystus, Mormyrus rume, Gymnarchus niloticus, Cynoglossus senegalensis, and Chrysichthys nigrodigitatus) and an aquatic plant Eichhornea crassipes collected from Lekki lagoon, Lagos Nigeria were examined. Heavy metals in the water, sediment, some selected fish and an aquatic plant were determined seasonally across nine sampling Stations; in the gills, liver and muscles of the fish species and in the root stem and leaves of Eichhornea crassipes using an atomic absorption spectrometer (AAS). Heavy metals concentrations in the sediment and water varied significantly, both spatially and seasonally. Metal concentrations varied between species and body parts while Co, Cr and Pb were not detected. Ni was found in the liver and gills of S. mystus and M. rume and Cr in the gills of G. niloticus only. In Eichhornea crassipes, metals detected were in the order: root>leaves>stem for Fe, Zn, Cr, and Cd; root>stem>leaves for Pb and Ni while Co was not detected. Heavy metal presence in Lekki Lagoon calls for monitoring of activities within and around the lagoon and policy development towards the sustainable ecosystem health services.Keywords: Pollutants, Heavy metals, Eichhornia crassipes, Bioaccumulation, Lekki lagoo

Optimization study of bioethanol production from sponge gourd ( Luffa cylindrica )

Staff Publicationily available and under-utilized. In this study, SG as a potential source for production of ethanol was studied under statistically optimized conditions. SG was collected, peeled, dried, milled and sieved (1mm). Several pretreatment methods were employed on SG namely: steam explosion, alkaline, combination of alkaline and steam explosion, zinc chlo- ride and sodium sulphite. Central Composite Design (CCD) of Response Surface Methodol- ogy (RSM) was used to design and determine the optimum parameters for glucose yield as well as the fermentation for bioethanol production. The best pretreatment method for sponge gourd was investigated to be sodium sulphite pretreatment with a glucose yield of 6.65 kgm −3 . The sodium sulphite pretreated SG was modelled, optimized and validated with R 2 of 0.9974 at p < 0.05. Glucose production was optimal at conditions: sodium sulphite (9% w/w), temperature (100 °C) and reaction time (60 min) resulting in glucose yield of 6.673 kgm −3 . From the CCD, the factors that gave the highest ethanol concentra- tion of 6.84kgm −3 were inoculum size (7.5 v/v), fermentation time (24 h) and nitrogen source (inorganic). The study concluded that sponge gourd could be a potential feedstock for bioethanol production and would prevent under-utilized agro-waste materials

Global practices and local interests Planned technology-based change programmes in Nigerian banks

Available from British Library Document Supply Centre-DSC:DXN051729 / BLDSC - British Library Document Supply CentreSIGLEGBUnited Kingdo

Towards a Green Blockchain: A Review of Consensus Mechanisms and their Energy Consumption

Organizations all over the world are under pressure to reduce their use of non-renewable energy sources and carbon emissions into the atmosphere due to its increasing negative impact on the ongoing climate crisis. Blockchain is a disruptive technology popularised by its use in Bitcoin, which has subsequently been adopted for various use cases. However, recently Blockchain has started attracting negative attention due to its propensity for high energy consumption depending on the adopted consensus mechanism. In this work, we explore the need for green (sustainable) Blockchain by comprehensively reviewing the various existing consensus mechanisms and their energy consumption to present a framework that will contribute towards developing more sustainable and environment friendly Blockchain-enabled systems

Farmer's participation in social forestry in the semi-arid zone of Nigeria

In July 1996, a structured questionnaire was used to interview 475 people in 38 farm-family groups to elicit information on their participation in social forestry in the semi-arid zone of Nigeria. States covered included Bauchi; Borno; Jigawa, Kano; Katsina; Kebbi; Plateau; Sokoto and Yobe. Forty seven percent of farmers interviewed own private nurseries to supplement the government nurseries. About 68% owned woodlots, 47.4% orchards while only 3% were involved in apiculture. No farmer was involved in amenity planting but 40% of them had home gardens; 23.6% were engaged in borderline (boundary) planting. All the farmers interviewed participated in tree planting, even though management of trees (weeding, tending, pruning) in these various technologies was poor. NGO participation is high in one state Katsina) while a lot of Community Based Organizations (CBOs) were present in all the states and some of them participated in tree planting. Farmers interviewed appear confident with high self-worth. They are satisfied with the forestry projects. [JEXT Vol.2(1) 2001: 71-80

Mathematical modelling and kinetics of thermal decomposition of corn stover using thermogravimetry (TGA-DTG) technique

Please read abstract in article.https://aip.scitation.org/journal/apcam2023Chemical EngineeringNon

Digital inclusion projects in developing countries: processes of institutionalization

This article concerns digital inclusion projects in developing countries and, in particular, focuses on processes of institutionalization of such projects. Three case studies are described and analysed. The first is the Akshaya telecenter project in the state of Kerala in India. The second is a community-based ICT project in a town in a rural area of South Africa. The third is the efforts of various agencies on telecenter projects in the mega-city of São Paulo in Brazil. The cases are analysed through a simple theoretical schema derived from institutional theory. The analyses are used to derive four key processes of institutionalization, which are argued to be of relevance to all digital inclusion projects: getting symbolic acceptance by the community, stimulating valuable social activity in relevant social groups, generating linkage to viable revenue streams, and enrolling government support. The article concludes with some theoretical, methodological, and policy implications