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Sizing of Unit Operations in process engineering using Aspen Plus Simulation
Get PDFThis project deals with the sizing of unit operations in process engineering. Process engineering is the understanding and application of the fundamental principles and laws of nature that allow us to transform raw material and energy into products that are useful to society, at an industrial level. By taking advantage of the driving forces of nature such as pressure, temperature and concentration gradients, as well as the law of conservation of mass, process engineers can develop methods to synthesize and purify large quantities of desired chemical products. In this project we will focus in the design, operation, control, optimization and intensification of chemical processes by designing pipelines in each case study. For Numerical Resolution, will use the chemical process simulator Aspen HYSYS, used to mathematically model chemical processes.
We have a multitude of problems to deal with during this project.
1. Study of an incompressible fluid flow in a pipeline
2. Technology of Heat Exchangers
3. Refrigeration cycl
A Researcher's Guide to Metadata Integration Increasing Discoverability of African Research
Get PDFPART I
The first session was held on 21st April 2022 and covered the topic: Who Crossref is, what they do for the benefit of the scholarly community.
https://africarxiv.pubpub.org/pub/qkuvlthx#nqgwkvav8iy
Part II
The second session held on 28th April 2022, featured a presentation from Jennifer Kemp, Head of Partnership at Crossref on How Crossref metadata integrates with scholarly research tools and discovery systems.
https://africarxiv.pubpub.org/pub/qkuvlthx#nywb358xggi
Part III
The last part of the series was held on 5th May 2022, on the topic “How members work with Crossref to register research content” presented by Susan Collins- Community Engagement Manager at Crossref. The session also featured a presentation by Kylie van Zyl- Journal Assessment Officer at African Journal Online(AJOL) who guided the participants on Crossref DOI’s at AJOL.
https://africarxiv.pubpub.org/pub/qkuvlthx#nu4zo0rsceqCrossref, AfricArxiv, and the Training Centre in Communication (TCC Africa) joined forces to host a series of workshops aimed at supporting discoverability or research in Africa through metadata and integrations between repositories and indexing platforms
The Pragmatics Of Swahili Relative Clauses
Get PDFSeveral studies explain the variation of the Swahili relative clause (RC) from a
syntactic perspective. These studies discuss the derivational and structural
differences/similarities between the amba RC and the tensed RC. In this study, the choice between the amba and tensed RCs is explained from a pragmatic perspective. 440 RCs were extracted from the Helsinki Corpus of Swahili. The dataset was then coded for various variables including relative marker (amba/tensed), relative type (restrictive/non-restrictive), length (number of words used), and information status (topic/non-topic). The results show that the tensed RCs are mostly restrictive while the amba RCs are mostly non-restrictive. Further, the mean length of the amba RC is higher than of the tensed RC. It was observed that the amba RC is preferred in topic shift transition, that is, when a non-topic NP becomes the topic NP in the following utterance while the tensed RC is preferred in continue transition, that is, if the topic of the matrix clause is the same as that of the RC
An exploration of challenges affecting the Adoption of Information and communication Technologies (ICTs) by Government libraries in Kenya.
Get PDFIn Kenya, many libraries have embraced the use of ICTs to leverage their services. While the extent of the use of ICTs in these libraries vary vastly, it is reported in literature that the use of these technologies are also faced by different challenges. Accordingly, this study sought to the key challenges affecting the adoption of ICTs by government libraries in Kenya under two objectives: to describe the challenges affecting the adoption of ICTs by government libraries in Kenya and recommend measures that should be taken to arrest the challenges. The study was informed by e-readiness model and guided by qualitative research methods. Twelve (12) libraries were selected purposively. Data was collected from the heads of selected libraries using interview method. Website and documentary analysis was also used to enhance data quality. Data presentation and analysis was done qualitatively, however this was simplified using figures and tables based on excel software. According to the findings, the adoption of ICTs by government libraries is affected by different managerial, financial, technological and staff related challenges. Based on these findings, the study recommended the formation of ICT committee at the department of government Library Services (GLS), enhancing internet access in libraries, adapting a standard system for government libraries, development of ICT policy for libraries and exploring alternative sources of funding by librarie
On The Distribution Of Perfect Numbers And Related Sequences Via The Notion Of The Disc
Get PDFIn this paper we investigate some properties of perfect numbers and associated sequences using the notion of the disc induced by the sum-of-the-divisor function . We reveal an important relationship between perfect numbers and abundant numbers
Resilience Capacity of Farmers in Sub-Saharan Africa: A Case Study of Rice Farmers in Ogun and Niger States, Nigeria
Get PDFFood production in Sub-Saharan Africa faces challenges of which climate change is major. Being a global environmental threat of this century, the Inter-Government Panel on Climate Change estimated that if the current emissions rate of greenhouse gasses (GHGs) continues, the present warming levels are likely to reach 1.5°C between 2030 and 2052 –additional warming of 0.5°C (IPCC., 2018). This particularly is a point of concern as extreme weather events can negatively impact crop production (IPCC., 2018) . Some critical challenges that agriculture has been forecast to face under climate change are already obvious
Open Science Capacity Building in Africa
No full textList about Open Science Capacity Building stakeholders in Africa that were shared during the First meeting of the Working Group on Open Science Capacity Building hosted by UNESCO
The joint AU-EU Innovation Agenda: when Science, Technology and Innovation (STI) stand for Sustainable Tangible Impact
No full textOutcome of the African Union (AU) – European Union (EU) Research & Innovation (R&I) Ministerial Meeting of July 2020, the “AU-EU Innovation Agenda” aims to turn R&I investments into tangible businesses, services and jobs. This Agenda proposes specific objectives with short-, medium- and long-term actions for all four priority areas of the AU-EU cooperation in Science, Technology and Innovation (STI), namely (i) Public Health, (ii) Green Transition, (iii) Innovation and Technology and (iv) Capacities for Science. This paper aims to raise awareness on the AU-EU Innovation Agenda and the ongoing public consultation on its working document (open until 30 June 2022). This consultation will gather feedback and input from citizens, stakeholders and their respective organisations, through an online survey (https://ec.europa.eu/eusurvey/runner/IAPublicConsultation). This is done to ensure that the Agenda will address actual unmet needs on the ground, to ultimately maximise chances to provide for sustainable and inclusive growth in Africa and Europe
The Asymptotic Binary Goldbach and Lemoine Conjectures : Binary Goldbach and Lemoine Conjectures
No full textIn this paper we use the former of the authors developed theory of circles of partition to investigate possibilities to prove the binary Goldbach as well as the Lemoine conjecture. We state the squeeze principle and its consequences if the set of all odd prime numbers is the base set. With this tool we can prove asymptotic versions of the binary Goldbach as well as the Lemoine conjecture
General Collective Intelligence as a Platform for Computational Social Systems
No full textThe emerging science of General Collective Intelligence or GCI defines the requirements for a hypothetical platform able to self-organize individuals in a self-sustaining way into massive networks of cooperation with the capacity to execute collective reasoning in a way that might exponentially increase the general problem-solving ability of the group. Some of these requirements of a GCI include the property of “dynamic decentralization”, without which any modeling, simulation, analysis or understanding of social systems from a quantitative and/or computational perspective are hypothesized to be centralized in a way that prevents them from being free of being constrained to be aligned with the individual interests of any powerful decision-makers involved in any of these processes. This paper explores why, as a consequence, building computational social systems on top of GCI is critical in ensuring that any class of problem can be solved where that class relates to the misalignment between the interests of influential individual decision-makers, and the outcomes that would be beneficial for the group