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Designs, Volume 5, Issue 4

2021 December - 22 articles

Cover Story: Meeting flight certification reliability and safety targets for new green VTOL aircraft is a real challenge for manufacturers given the variety of technologies, level of maturity, and configurations possible. Two main approaches to provide redundancy and therefore increased aircraft reliability are through multiple propulsion units and/or multiplex electric drives to reduce the consequence of a single failure. A simple methodology based on existing design modeling methods and historical data is developed as a starting point to assess the viability of concept aircraft designs for their reliability and efficiency as technical and economic figures of merit, respectively, regardless of aircraft architecture and power distribution, and is demonstrated on several aircraft case studies using multiplex electric drives. View this paper.
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Articles (22)

  • Article
  • Open Access
2 Citations
2,999 Views
13 Pages

10 December 2021

This study aims to present evaluation methods that can evaluate thermal comfort reflecting traditional values of the vernacular architecture in Korea called Hanok, especially focused on modernized public facilities. For this purpose, representative v...

  • Article
  • Open Access
11 Citations
3,532 Views
16 Pages

9 December 2021

Laboratory tests for the estimation of the compaction parameters, namely the maximum dry density (MDD) and optimum moisture content (OMC) are time-consuming and costly. Thus, this paper employs the artificial neural network technique for the predicti...

  • Article
  • Open Access
7 Citations
6,708 Views
15 Pages

2 December 2021

Topology optimization (TO) is a mathematical method that optimizes the material layout in a pre-defined design domain. Its theoretical background is widely known for macro-, meso-, and microscale levels of a structure. The macroscale TO is now availa...

  • Article
  • Open Access
11 Citations
7,978 Views
16 Pages

Design of a Gasification Reactor for Manufacturing and Operation in West Africa

  • Laetitia Zoungrana,
  • Sayon dit Sadio Sidibé,
  • Benoît Herman,
  • Yézouma Coulibaly and
  • Hervé Jeanmart

30 November 2021

This paper introduces the design of a biomass gasification reactor with specific constraints for its manufacturing and operation in the West African conditions. The foreseen applications are the valorisation into heat and electricity of agricultural...

  • Article
  • Open Access
26 Citations
11,071 Views
23 Pages

Assistive Devices: Technology Development for the Visually Impaired

  • Jorge Rodolfo Beingolea,
  • Miguel A. Zea-Vargas,
  • Renato Huallpa,
  • Xiomara Vilca,
  • Renzo Bolivar and
  • Jorge Rendulich

27 November 2021

Technology has been contributing significantly to the development of assistive devices for disabled persons (DPs). Many of these devices aim to assist people who are blind or visually impaired, providing them with friendlier ways to interact with the...

  • Article
  • Open Access
7 Citations
4,151 Views
31 Pages

Systematic Design Applied in Outdoor Spatiotemporal Lighting

  • Alexios Papacharalampopoulos and
  • Thanos Balafoutis

18 November 2021

Outdoor lighting design consists of many different objectives, depending on the area that is illuminated. In addition, besides functional lighting, extra messages may be superimposed to a lighting configuration. This adds to the complexity of the lig...

  • Article
  • Open Access
10 Citations
5,168 Views
17 Pages

The Effect of Oxygenated Turpentine Oil Additive in Diesel Fuel on the Performance and Emission Characteristics in One-Cylinder DI Engines

  • Asep Kadarohman,
  • Fitri Khoerunnisa,
  • Syazwana Sapee,
  • Ratnaningsih Eko Sardjono,
  • Izuan Izzudin,
  • Hendrawan,
  • Rizalman Mamat,
  • Ahmad Fitri Yusop,
  • Erdiwansyah and
  • Talal Yusaf

17 November 2021

A study on the application of oxygenated turpentine oil as a bio-additive in diesel fuel was conducted. The purpose of this research was to investigate the effect of oxygenated turpentine oil additive in diesel fuel on the performance and emission ch...

  • Article
  • Open Access
8 Citations
4,858 Views
12 Pages

16 November 2021

A micro-perforated plate or panel (MPP) is a device used to absorb sound. It consists of a thin flat plate made from several different materials with small holes and a back cavity. Several reported modifications and enhancements to the original desig...

  • Article
  • Open Access
20 Citations
3,339 Views
16 Pages

9 November 2021

Maximum power point tracking (MPPT) algorithms are used in photovoltaic applications to extract the maximum power that the photovoltaic (PV) panel can produce, which depends on two inputs that are: temperature and irradiance. A DC-DC converter is ins...

  • Article
  • Open Access
29 Citations
8,059 Views
19 Pages

Analysis of Smart Home Technology Acceptance and Preference for Elderly in Dubai, UAE

  • Mohammad Arar,
  • Chuloh Jung,
  • Jihad Awad and
  • Afaq Hyder Chohan

5 November 2021

The elderly are the most predicted users for smart home technology in the United Arab Emirates and the population over 65 is expected to increase to 24.3% by 2030. Despite the rapid development of smart home technology, research has been mainly focus...

  • Article
  • Open Access
1 Citations
3,602 Views
27 Pages

4 November 2021

A useful measure of efficiency of transport in aquatic animals and autonomous underwater vehicles is cost of transport. Often, cost of transport data on specific animals or platforms is not readily available or does not fit specific use cases, but im...

  • Article
  • Open Access
5 Citations
4,799 Views
20 Pages

Modelling Green VTOL Concept Designs for Reliability and Efficiency

  • Julian David Booker,
  • Caius Patel and
  • Phillip Mellor

28 October 2021

All-electric and hybrid-electric aircraft are a future transport goal and a possible ‘green’ solution to increasing climate-related pressures for aviation. Ensuring the safety of passengers is of high importance, informed through appropriate reliabil...

  • Review
  • Open Access
22 Citations
4,635 Views
23 Pages

19 October 2021

At present, any industry that wanted to be considered a vanguard must be willing to improve itself, developing innovative techniques to generate a competitive advantage against its direct competitors. Hence, many methods are employed to optimize prod...

  • Article
  • Open Access
12 Citations
3,780 Views
15 Pages

14 October 2021

(1) Background: Electric micro-mobility vehicles (i.e., e-bikes and e-scooters) represent a fast-growing portion of the circulating fleet, leading to a multiplication of accident cases also attributable to risky behaviours adopted by the riders. Stil...

  • Article
  • Open Access
5 Citations
2,998 Views
19 Pages

An ALO Optimized Adaline Based Controller for an Isolated Wind Power Harnessing Unit

  • Amritha Kodakkal,
  • Rajagopal Veramalla,
  • Narasimha Raju Kuthuri and
  • Surender Reddy Salkuti

11 October 2021

A power generating system should be able to generate and feed quality power to the loads which are connected to it. This paper suggests a very efficient controlling technique, supported by an effective optimization method, for the control of voltage...

  • Article
  • Open Access
3 Citations
2,925 Views
17 Pages

9 October 2021

Electricity production from ocean waves with different solutions is a topic of major research interest. Many of such designs are based on linear generators that inherently introduce end forces. In this paper, detent force using Maxwell Stress Tensor...

  • Article
  • Open Access
18 Citations
15,792 Views
17 Pages

Neonatal Jaundice Detection Using a Computer Vision System

  • Warqaa Hashim,
  • Ali Al-Naji,
  • Izzat A. Al-Rayahi,
  • Makram Alkhaled and
  • Javaan Chahl

8 October 2021

Jaundice or Hyperbilirubinemia is a very common condition that affects newborns in their first few weeks of life. The main cause of jaundice is the high level of the bilirubin substance in the blood. As bilirubin is toxic to brain cells, acute biliru...

  • Article
  • Open Access
5 Citations
4,815 Views
28 Pages

3 October 2021

Many conventional power systems are evolving due to the growth of renewable energy and distributed energy resources (DERs). Modeling the interplay of transmission and distribution systems is critical to analyze how DERs impact a system’s conventional...

  • Article
  • Open Access
16 Citations
15,961 Views
20 Pages

Transit-Oriented Development in Doha: The Case of the Al Sadd Neighborhood and Hamad Hospital Metro Station

  • Sara Nafi,
  • Raffaello Furlan,
  • Michael Grosvald,
  • Rashid Al-Matwi and
  • Khalida Lifam Marthya

29 September 2021

Over the last two decades, transit-oriented development (TOD) has been widely implemented as an integrated strategy to enhance urban livability. Doha, the capital of the State of Qatar, has faced urban challenges such as excessive reliance on private...

  • Article
  • Open Access
1 Citations
5,234 Views
19 Pages

Agile Powertrain Development: Considerations to Incorporate Agile Principles

  • Andreas Lukas,
  • Oliver Moerth-Teo,
  • Lukas Schwarz,
  • Hans P. Schnöll,
  • Matthias Wolf and
  • Christian Ramsauer

27 September 2021

Pressure to increase effectiveness and efficiency drives the product development process. The software industry has been using agile development approaches due to their advantages when coping with uncertainties and simultaneously increasing value. Th...

  • Article
  • Open Access
16 Citations
4,651 Views
19 Pages

Design of Powering Wireless Medical Sensor Based on Spiral-Spider Coils

  • Mustafa F. Mahmood,
  • Sadik Kamel Gharghan,
  • Saleem Latteef Mohammed,
  • Ali Al-Naji and
  • Javaan Chahl

26 September 2021

Biomedical sensors help patients monitor their health conditions and receive assistance anywhere and at any time. However, the limited battery capacity of medical devices limits their functionality. One advantageous method to tackle this limited-capa...

  • Article
  • Open Access
2 Citations
4,456 Views
19 Pages

Expanded Microchannel Heat Exchanger: Finite Difference Modeling

  • David Denkenberger,
  • Joshua M. Pearce,
  • Michael Brandemuehl,
  • Mitchell Alverts and
  • John Zhai

22 September 2021

A finite difference model of a heat exchanger (HX) considered maldistribution, axial conduction, heat leak, and the edge effect, all of which are needed to model a high effectiveness HX. An HX prototype was developed, and channel height data were obt...

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Designs - ISSN 2411-9660