Large-scale compartment fires to develop a self-extinction design framework for mass timber—Part 1: Literature review and methodology

BACKGROUND The COVID-19 pandemic has impacted nearly all aspects of life and has posed significant threats to international health and the economy. Given the rapidly unfolding nature of the current pandemic, there is an urgent need to streamline literature synthesis of the growing scientific research to elucidate targeted solutions. While traditional systematic literature review studies provide valuable insights, these studies have restrictions, including analyzing a limited number of papers, having various biases, being time-consuming and labor-intensive, focusing on a few topics, incapable of trend analysis, and lack of data-driven tools. OBJECTIVE This study fills the mentioned restrictions in the literature and practice by analyzing two biomedical concepts, clinical manifestations of disease and therapeutic chemical compounds, with text mining methods in a corpus containing COVID-19 research papers and find associations between the two biomedical concepts. METHODS This research has collected papers representing COVID-19 pre-prints and peer-reviewed research published in 2020. We used frequency analysis to find highly frequent manifestations and therapeutic chemicals, representing the importance of the two biomedical concepts. This study also applied topic modeling to find the relationship between the two biomedical concepts. RESULTS We analyzed 9,298 research papers published through May 5, 2020 and found 3,645 disease-related and 2,434 chemical-related articles. The most frequent clinical manifestations of disease terminology included COVID-19, SARS, cancer, pneumonia, fever, and cough. The most frequent chemical-related terminology included Lopinavir, Ritonavir, Oxygen, Chloroquine, Remdesivir, and water. Topic modeling provided 25 categories showing relationships between our two overarching categories. These categories represent statistically significant associations between multiple aspects of each category, some connections of which were novel and not previously identified by the scientific community. CONCLUSIONS Appreciation of this context is vital due to the lack of a systematic large-scale literature review survey and the importance of fast literature review during the current COVID-19 pandemic for developing treatments. This study is beneficial to researchers for obtaining a macro-level picture of literature, to educators for knowing the scope of literature, to journals for exploring most discussed disease symptoms and pharmaceutical targets, and to policymakers and funding agencies for creating scientific strategic plans regarding COVID-19.

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Literature Review on Reasons and Countermeasures on Large-scale Off-grid of Wind Turbine Generator System

MATEC Web of Conferences ◽

10.1051/matecconf/20152202020 ◽

2015 ◽

Vol 22 ◽

pp. 02020

Author(s):

Jun Zhu ◽

Tianyu Liu ◽

Qiyuan Huang

Keyword(s):

Literature Review ◽

Wind Turbine ◽

Large Scale ◽

Turbine Generator ◽

Generator System ◽

Wind Turbine Generator ◽

Wind Turbine Generator System

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A Study on Applicability of the Scrum Framework for Large Software Projects

10.32920/ryerson.14656509.v1 ◽

2021 ◽

Author(s):

Jaweria Sultana

Keyword(s):

Literature Review ◽

Systematic Literature Review ◽

Large Scale ◽

Primary Objective ◽

Work Rate ◽

Communication Overhead ◽

Second Phase ◽

Software Projects ◽

Two Phase ◽

Good Communication

The primary objective of this research is to investigate the adaptability of the Scrum framework for large scale projects. A two phase approach has been undertaken towards the goal. The first phase involves conducting a systematic literature review to identify and elaborate scaling practices used in the current industry. The review also identifies the challenges faced by the developers when the Scrum framework is used for the development of large projects. The second phase involves the construction of a simulation model to analyze the dynamic behavior of the Scrum framework for large projects. The systematic literature review revealed that the major challenge while scaling Scrum is ensuring good communication among project members. The communication overhead was incorporated in the system dynamic model of the Scrum framework. The simulation results showed that there is a reduction in work rate when number of personnel is increased due to the increasing communication overhead.

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An analysis of Indonesian government policies against COVID-19

Public Administration and Policy ◽

10.1108/pap-08-2020-0039 ◽

2021 ◽

Vol ahead-of-print (ahead-of-print) ◽

Author(s):

Ali Roziqin ◽

Syasya Y.F. Mas’udi ◽

Iradhad T. Sihidi

Keyword(s):

Literature Review ◽

Narrative Analysis ◽

Large Scale ◽

Preventive Measure ◽

Safety Net ◽

Government Policies ◽

Content Type ◽

Indonesian Government ◽

Social Restriction ◽

The Government

PurposeCOVID-19 cases in Indonesia continue to increase and spread. This article aims to analyse the Indonesian government policies as a response in dealing with COVID-19.Design/methodology/approachThis article is a narrative analysis with the approach of a systematic literature review.FindingsThis article found that the Indonesian government responded slowly to the COVID-19 pandemic at the beginning of its spread in March 2020. The government then issued some policies such as physical distancing, large-scale social restriction (PSBB - Pembatasan Sosial Berskala Besar) and social safety net. These policies will only work if the society follows them. The society could be the key to success of those policies, either as the support or the obstacles.Practical implicationsThis policy analysis with literature review, conducted from March to July 2020 in Indonesia, provides experiences and knowledge in how to respond to the dynamic problems of public policy in dealing with the COVID-19 outbreak, especially in the context of a developing country.Originality/valueThe novelty of the article lies in the unique policy response in a diverse society. It suggests that the policymakers should pay more attention to the society’s characteristics as well as the mitigation system as a preventive measure and risk management to make clear policy in the society.

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Finding the Key: Designing Timber Connections for CLT Panels

10.26686/wgtn.17142785 ◽

2021 ◽

Author(s):

◽

Gabriella Joyce

Keyword(s):

Large Scale ◽

Computational Design ◽

Digital Fabrication ◽

Timber Construction ◽

Structural Capacity ◽

Connection System ◽

Digital Modelling ◽

Thermal Bridging ◽

Timber Connections ◽

Mass Timber

<p>In a climate where standard methods of construction are being challenged, developments in engineered timbers are allowing mass timber construction to be explored as a sustainable alternative to traditional building methods. Cross- laminated timber (CLT) is at the forefront of this evolution and, with the advancement in computational design and digital fabrication tools, there lies an opportunity to redefine standard construction. This project explores how digital modelling and advance digital fabrication can be combined to generate a connection system for CLT panels. The advantages of CLT and mass timber construction are numerous and range from environmental and aesthetic benefits to site safety and cost reduction benefits. There are, however, issues that remain surrounding the connections between CLT panels. Steurer (2006, p.136) stated that, “Progress in engineered timber construction is directly related to developments in connector technology.” This thesis creates connections inspired by traditional Japanese joinery that have been adapted to be used for the panel construction of CLT structures. Using CLT offcuts as a primary connection material, the system not only reduces waste but also mitigates thermal bridging and lowers the number of connection points whilst increasing the ease of building and fabrication. The connections are first considered at a detail scale. They use the literature review and case studies as a base for design before being tested using digitally fabricated prototypes. These prototypes are evaluated against a framework created in line with the aforementioned criteria. Within this framework, the connections are analysed against existing connection systems as well as previous designs to establish a successful system. The connections are then evaluated within the context of a building scale and considers large-scale fabrication and on- site assembly whilst continuing to focus on the reduction of waste. This research found that the simplicity of the connections is key to a successful system as this allows for faster and cheaper fabrication and installation. However, there is still further research needed surrounding large-scale fabrication and the structural capacity of timber connection systems.</p>

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Multisite Research Ethics Review: Problems and Potential Solutions

BioéthiqueOnline ◽

10.7202/1044265ar ◽

2018 ◽

Vol 5 ◽

Cited By ~ 1

Author(s):

Aidan Ferguson ◽

Zubin Master

Keyword(s):

Literature Review ◽

Large Scale ◽

Review Process ◽

Alternative Methods ◽

Ethics Review ◽

Research Ethics Review ◽

Institutional Review ◽

Proposed Modification ◽

Clinical Research Trials ◽

Individual Ethics

Large scale, multisite clinical research trials have been increasing in frequency. As it stands currently, a research project performed at multiple institutions requires ethics review at each institution. While local (institutional) review may be necessary in some instances, repetitive reviews may require unnecessary changes and not serve to further protect participants. Multiple ethics reviews of a single study have been shown to delay research and require, in some cases, significant resources in order to fulfill the requests of individual ethics boards. This literature review discusses the conceptual issues and outlines empirical research surrounding multisite ethics review from different jurisdictions, as well as alternative methods to streamline the ethics review process including reciprocal review, centralized review, and a proposed modification to the centralized review process.

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Requirements Engineering for Software Systems: A Systematic Literature Review

PROGRAMMNAYA INGENERIA ◽

10.17587/prin.12.339-349 ◽

2021 ◽

Vol 12 (7) ◽

pp. 339-349

Author(s):

A. A. Kodubets ◽

◽

I. L. Artemieva ◽

Keyword(s):

Literature Review ◽

Requirements Engineering ◽

Language Processing ◽

Systematic Literature Review ◽

Large Scale ◽

Development Process ◽

Research Question ◽

Software Systems ◽

Software System ◽

Requirements Development

This article contains a systematic literature review of requirements engineering for software systems. The literature published within last 5 years was included into the review. A research question was defined as requirements development process of large scale software system (with thousands of requirements) and an interaction problem during this process (communication, coordination and control). The problem is caused by the fact that large-scale software system requirements process is a cross-disciplinary task and it involves multiple parties — stakeholders, domain experts, and suppliers with own goals and constrains, and thus, the interaction between them seriously slows down the overall requirements development process than writing the requirements specification itself. The research papers were classified by several research directions: Natural Language Processing for Requirements Engineering (NLP4RE), Requirement Prioritization, Requirements Traceability, Quality of Software Requirements, Non-functional Requirements and Requirements Elicitation. Motivation and intensity of each direction was described. Each direction was structured and represented with the key references. A contribution of each research direction into the research question was analyzed and summarized including potential further steps. It was identified that some researchers had met a part of the described problem in different forms during their researches. At the end, other researches were described additionally in a short overview. To approach the research question further potential direction was described.

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Optimal Design and Techno-Economic Analysis for Corncob Particles Briquettes: A Literature Review of the Utilization of Agricultural Waste and Analysis Calculation

Applied Science and Engineering Progress ◽

10.14416/j.asep.2021.10.006 ◽

2021 ◽

Author(s):

Asep Bayu Dani Nandiyanto ◽

Nissa Nur Azizah ◽

Gabriela Chelvina Santiuly Girsang

Keyword(s):

Optimal Design ◽

Literature Review ◽

Economic Analysis ◽

Large Scale ◽

Net Present Value ◽

Raw Materials ◽

Agricultural Waste ◽

Raw Material ◽

Variable Cost ◽

Scale Production

Corncob is usually disposed of directly as waste, creating problems in the environment, while it can be converted into valuable materials. This research aimed to evaluate the literature review on briquette production from agricultural waste (using non-binder and cold press with a binder) and the current works on techno-economic analysis, to propose an optimal design for the production of briquette from corncob waste, and to perform a techno-economic analysis based on the selected optimal processing method. The engineering perspective based on stoichiometry and mass balance showed the potential corncob briquette manufacture in both home and large scales due to the possible use of inexpensive and commercially available equipment and raw materials. The economic perspective [based on several economic evaluation factors (i.e., gross profit margin, payback period, break-even point, cumulative net present value, return of investment, internal rate return, and profitability index) under ideal and non-ideal conditions by considering internal (i.e., sales, raw materials, utilities, and variable cost) and external aspects (i.e., tax)] confirmed the prospective development of the project in the large-scale production with a lifetime of more than 18 years. The main issue in the project is the raw material (i.e. tapioca flour), giving the most impact on the project’s feasibility. Even in severe conditions, the project is feasible. The great endurance was also confirmed in the case of a higher tax rate. This study demonstrates the importance of producing corncob-based briquettes for improving the economic value and giving alternatives for problem solvers in the utilization of agricultural waste.

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