scholarly journals High-Efficiency Simulation Framework to Analyze the Impact of Exhaust Air from COVID-19 Temporary Hospitals and its Typical Applications

2020 ◽  
Vol 10 (11) ◽  
pp. 3949 ◽  
Author(s):  
Donglian Gu ◽  
Zhe Zheng ◽  
Pengju Zhao ◽  
Linlin Xie ◽  
Zhen Xu ◽  
...  
Keyword(s):  
High Efficiency ◽  
Adverse Impact ◽  
Simulation Framework ◽  
Levels Of Detail ◽  
Surrounding Environment ◽  
Building Information ◽  
Simulation Results ◽  
Medical Infrastructure ◽  
The Impact ◽  
Different Levels

The outbreak of COVID-19 resulted in severe pressure on the existing medical infrastructure in China. Several Chinese cities began to construct temporary hospitals for the centralized treatment of COVID-19 patients. The harmful exhaust air from the outlets of these hospitals may have a significant adverse impact on the fresh-air intakes and surrounding environment. Owing to the need to rapidly construct these hospitals within 6–10 days, just a few hours are allowed for the analysis of the impact of this exhaust air on the environment. To overcome this difficulty, a high-efficiency simulation framework is proposed in this study. Based on the open-source computational fluid dynamics software, FDS, the proposed framework is adaptive and incorporates building information with different levels of detail during various design phases of the hospital, and has been applied in the design of the Wuhan Huoshenshan Hospital, the first typical COVID-19 temporary hospital in China. According to the simulation results, neither the fresh-air intakes nor the surrounding buildings would be polluted by the harmful air discharged from the air outlets of the Huoshenshan hospital. The proposed simulation framework can provide a reference for the design and overall planning of similar hospitals in China and other affected countries.

scholarly journals The level of detail for 4D BIM modeling

2021 ◽  
Vol 1209 (1) ◽  
pp. 012002
Author(s):  
Y Nechyporchuk ◽  
R Baskova
Keyword(s):  
Level Of Detail ◽  
The Past ◽  
Levels Of Detail ◽  
The Impact ◽  
Different Levels

Abstract 4D modeling has been actively developing over the past decade along with the progress of BIM implementation. 4D model can provide enhanced early decisions about the space-temporal criticality of work elements. This models is a collection of graphical and scheduling information about an object. These inputs can have different levels of detail (LOD). In creating and using BIM projects, the LOD of datasets is an important aspect. However, to date there is limited research thoroughly investigating the issue of LOD within 4D models. The article provides an overview of studies related to the level of detail for 4D models, and also describes the impact of LOD on the final 4D model.

Modeling the Impact of PHEV Penetration on the Residential Electrical Networks

2015 ◽  
Vol 793 ◽  
pp. 154-158
Author(s):  
S.A. Syed Mustaffa ◽  
M.F. Mohd Yusoff ◽  
N. Baharin ◽  
T.A.R Tuan Abdullah
Keyword(s):  
Electric Vehicles ◽  
Hybrid Electric Vehicles ◽  
High Efficiency ◽  
Voltage Drop ◽  
Electrical Networks ◽  
Sustainable Mobility ◽  
Low Emission ◽  
Simulation Results ◽  
Negative Impacts ◽  
The Impact

Plug-in Hybrid Electric Vehicles (PHEV) have a better future in term of providing sustainable mobility due to their high efficiency and low emission levels. However, the global penetration of PHEVs can create negative impacts if their charging activities are not scheduled and controlled. This paper presents the impact of PHEVs charging on the residential network in Malaysia under various charging scenarios. The simulation results shows there will be a significant voltage drop in the cable and increment in load profile due to additional load. In order to avoid any unwanted circumtances, several PHEV charging profiles are analysed and some potential solutions are suggested including controlling and resizing of the cable.

scholarly journals Impact of Railway Investment on Regional Development – Case Study of Pomeranian Metropolitan Railway

2019 ◽  
Vol 31 (6) ◽  
pp. 669-679 ◽  
Author(s):  
Cezary Mankowski ◽  
Dariusz Weiland ◽  
Borna Abramović
Keyword(s):  
Regional Development ◽  
Point Of View ◽  
Added Value ◽  
Living Standard ◽  
Final Conclusion ◽  
Levels Of Detail ◽  
The Impact ◽  
Different Levels ◽  
Construction Works

From the regional development point of view new investments are always of great importance as they are mainly expected to boost the regional economy and thus improve the living standard of inhabitants. Also for the literature purposes a new case study on the impact of investments on regional development can be perceived as an added value to the state of the art and thus worthy to be explored. In this research the impact is measured in the following aspects: social, economic, innovation, and environmental, which stand also for the main assessment criteria. Just recently, an opportunity has appeared to explore this subject on the Pomeranian Metropolitan Railway (PMR), which started its operations on 1st September 2015, after five years of construction works and more than a 100-year long history. Thus, the paper presents the impact results of PMR on the development of the Pomeranian region, in the form of qualitative as well as quantitative assessments in the four aspects and on different levels of detail. The final conclusion states that the impact of PMR on the regional development has appeared to be negative in 33% and positive in 67%.

Band Engineering of Graphene Nanomesh Field Effect Transistor under Multiscale Simulation Framework

2015 ◽  
Vol 645-646 ◽  
pp. 98-103
Author(s):  
Ya Wei Lv ◽  
Hao Wang ◽  
Sheng Chang ◽  
Zhi Hao Yu ◽  
Jin He ◽  
...  
Keyword(s):  
Field Effect ◽  
Field Effect Transistor ◽  
Multiscale Simulation ◽  
Simulation Framework ◽  
Band Engineering ◽  
Pinning Effect ◽  
Graphene Nanomesh ◽  
Effect Transistor ◽  
Simulation Results ◽  
The Impact

In this paper, we investigate the impact of the size of holes in graphene nanomesh. A multiscale simulation framework is utilized to simulate different structures flexibly. These structures include an intact graphene nanoribbon (GNR), a graphene nanomesh with 4 atoms missing periodic (4-atom holes GNM), and a graphene nanomesh with 6 atoms missing periodic (6-atom holes GNM). Simulation results indicate that a subband appears in the conduction band in 6-atom holes GNM. In addition, interface states which come from the interactions among dangling bonds can significantly reduce the bandgaps of GNMs and induce a pinning effect to their Fermi energies.

Analysis of modeling effort and impact of different levels of detail in building information models

2011 ◽  
Vol 20 (5) ◽  
pp. 601-609 ◽  
Author(s):  
Fernanda Leite ◽  
Asli Akcamete ◽  
Burcu Akinci ◽  
Guzide Atasoy ◽  
Semiha Kiziltas
Keyword(s):  
Modeling Effort ◽  
Levels Of Detail ◽  
Information Models ◽  
Building Information ◽  
Building Information Models ◽  
Different Levels

Piezoelectric β-polymorph formation of new textiles by surface modification with coating process based on interfacial interaction on the conformational variation of poly (vinylidene fluoride) (PVDF) chains

2020 ◽  
Vol 91 (3) ◽  
pp. 31301
Author(s):  
Nabil Chakhchaoui ◽  
Rida Farhan ◽  
Meriem Boutaldat ◽  
Marwane Rouway ◽  
Adil Eddiai ◽  
...  
Keyword(s):  
High Efficiency ◽  
Vinylidene Fluoride ◽  
Research Work ◽  
Research Area ◽  
Interfacial Interaction ◽  
Tetraethyl Orthosilicate ◽  
Poly Vinylidene Fluoride ◽  
Carbon Nanofillers ◽  
The Impact ◽  
Advanced Applications

Novel textiles have received a lot of attention from researchers in the last decade due to some of their unique features. The introduction of intelligent materials into textile structures offers an opportunity to develop multifunctional textiles, such as sensing, reacting, conducting electricity and performing energy conversion operations. In this research work nanocomposite-based highly piezoelectric and electroactive β-phase new textile has been developed using the pad-dry-cure method. The deposition of poly (vinylidene fluoride) (PVDF) − carbon nanofillers (CNF) − tetraethyl orthosilicate (TEOS), Si(OCH2CH3)4 was acquired on a treated textile substrate using coating technique followed by evaporation to transform the passive (non-functional) textile into a dynamic textile with an enhanced piezoelectric β-phase. The aim of the study is the investigation of the impact the coating of textile via piezoelectric nanocomposites based PVDF-CNF (by optimizing piezoelectric crystalline phase). The chemical composition of CT/PVDF-CNC-TEOS textile was detected by qualitative elemental analysis (SEM/EDX). The added of 0.5% of CNF during the process provides material textiles with a piezoelectric β-phase of up to 50% has been measured by FTIR experiments. These results indicated that CNF has high efficiency in transforming the phase α introduced in the unloaded PVDF, to the β-phase in the case of nanocomposites. Consequently, this fabricated new textile exhibits glorious piezoelectric β-phase even with relatively low coating content of PVDF-CNF-TEOS. The study demonstrates that the pad-dry-cure method can potentially be used for the development of piezoelectric nanocomposite-coated wearable new textiles for sensors and energy harvesting applications. We believe that our study may inspire the research area for future advanced applications.

TEACH-POT: Provide Opportunities in Teaching

2020 ◽  
pp. 79-91 ◽  
Author(s):  
Maria Giulia Ballatore ◽  
Ettore Felisatti ◽  
Laura Montanaro ◽  
Anita Tabacco
Keyword(s):  
Academic Community ◽  
Real Effect ◽  
The Real ◽  
Main Components ◽  
The Impact ◽  
Training Opportunities ◽  
Different Levels

This paper is aimed to describe and critically analyze the so-called "TEACHPOT" experience (POT: Provide Opportunities in Teaching) performed during the last few years at Politecnico di Torino. Due to career criteria, the effort and the time lecturers spend in teaching have currently undergone a significant reduction in quantity. In order to support and meet each lecturers' expectations towards an improvement in their ability to teach, a mix of training opportunities has been provided. This consists of an extremely wide variety of experiences, tools, relationships, from which everyone can feel inspired to increase the effectiveness of their teaching and the participation of their students. The provided activities are designed around three main components: methodological training, teaching technologies, methodological experiences. A discussion on the findings is included and presented basing on the data collected through a survey. The impact of the overall experience can be evaluated on two different levels: the real effect on redesigning lessons, and the discussion on the matter within the entire academic community.

Insider Trading: A White-Collar Crime and its Impact on Share Market

Think India ◽  
2014 ◽  
Vol 17 (3) ◽  
pp. 22-24
Author(s):  
Sreekumar Ray
Keyword(s):  
Stock Market ◽  
Insider Trading ◽  
White Collar Crime ◽  
White Collar ◽  
Adverse Impact ◽  
High Ranking ◽  
Internal Information ◽  
Indian Stock Market ◽  
The Impact

Since inception, the growth of the Indian stock market has been constrained through unethical, illegal and self-actualized activities of swanky persons involved in different capacities in the market. The stock market was trying to retrieve itself from the devastating effect of Harshad Mehta share market scam, when within a gap of ten years it was once again pushed into the darkness of the dungeon by another demon-child of the country- Ketan Parekh. Corporations have been looted by the insider traders, diversifying internal information to an external in lieu of cash. Investigations in the majority cases have proved the involvement of the high ranking officers of the companies in the crime, sophistically referred to as white-collar crime. It has an adverse impact on the growth and sustainability of the share market. Under the light of the above issue, this paper endeavors to study the impact of such crime on the share market. It focuses on the mechanism behind the insider-trading, its impact on the share market and the regulators supervision on the issue. Finally, suggestions have been provided which will contribute towards the dream of every Indian-a fraud-free share market focusing towards the overall development of the country.

Exploring the Benefits of Early Contractor Involvement (ECI) and the Mechanism for Automated 5D BIM Quantification Process in Offsite Modular Construction

2016 ◽  
Author(s):  
Tochukwu Moses ◽  
David Heesom ◽  
David Oloke ◽  
Martin Crouch
Keyword(s):  
Effective Means ◽  
Cost Effective ◽  
Modular Construction ◽  
Automated Quantification ◽  
Building Information ◽  
Project Risks ◽  
Value Add ◽  
The Uk ◽  
The Impact ◽  
Level 2

The UK Construction Industry through its Government Construction Strategy has recently been mandated to implement Level 2 Building Information Modelling (BIM) on public sector projects. This move, along with other initiatives is key to driving a requirement for 25% cost reduction (establishing the most cost-effective means) on. Other key deliverables within the strategy include reduction in overall project time, early contractor involvement, improved sustainability and enhanced product quality. Collaboration and integrated project delivery is central to the level 2 implementation strategy yet the key protocols or standards relative to cost within BIM processes is not well defined. As offsite construction becomes more prolific within the UK construction sector, this construction approach coupled with BIM, particularly 5D automated quantification process, and early contractor involvement provides significant opportunities for the sector to meet government targets. Early contractor involvement is supported by both the industry and the successive Governments as a credible means to avoid and manage project risks, encourage innovation and value add, making cost and project time predictable, and improving outcomes. The contractor is seen as an expert in construction and could be counter intuitive to exclude such valuable expertise from the pre-construction phase especially with the BIM intent of äóÖbuild it twiceäó», once virtually and once physically. In particular when offsite construction is used, the contractoräó»s construction expertise should be leveraged for the virtual build in BIM-designed projects to ensure a fully streamlined process. Building in a layer of automated costing through 5D BIM will bring about a more robust method of quantification and can help to deliver the 25% reduction in overall cost of a project. Using a literature review and a case study, this paper will look into the benefits of Early Contractor Involvement (ECI) and the impact of 5D BIM on the offsite construction process.

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