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Book part
Publication date: 5 August 2015

Tony Kazda and Bob Caves

Abstract

Details

Airport Design and Operation
Type: Book
ISBN: 978-1-78441-869-4

Article
Publication date: 1 January 1992

Michael Howard, Peter Barrett and David Oldbury MIEH

Reviews the species and characteristics of bird pests, defined asbirds whose activities impinge significantly on buildings and theiroccupants; feral pigeons, starlings…

Abstract

Reviews the species and characteristics of bird pests, defined as birds whose activities impinge significantly on buildings and their occupants; feral pigeons, starlings, house sparrows, swallows and martins. Outlines damage caused, bird‐proofing design techniques, and bird deterrent and removal techniques. Concludes that long‐term solutions, based on an understanding of bird behaviour, are most likely to be successful.

Details

Structural Survey, vol. 10 no. 1
Type: Research Article
ISSN: 0263-080X

Keywords

Book part
Publication date: 20 October 2015

Mohammad Shamsuddoha

Contemporary literature reveals that, to date, the poultry livestock sector has not received sufficient research attention. This particular industry suffers from…

Abstract

Contemporary literature reveals that, to date, the poultry livestock sector has not received sufficient research attention. This particular industry suffers from unstructured supply chain practices, lack of awareness of the implications of the sustainability concept and failure to recycle poultry wastes. The current research thus attempts to develop an integrated supply chain model in the context of poultry industry in Bangladesh. The study considers both sustainability and supply chain issues in order to incorporate them in the poultry supply chain. By placing the forward and reverse supply chains in a single framework, existing problems can be resolved to gain economic, social and environmental benefits, which will be more sustainable than the present practices.

The theoretical underpinning of this research is ‘sustainability’ and the ‘supply chain processes’ in order to examine possible improvements in the poultry production process along with waste management. The research adopts the positivist paradigm and ‘design science’ methods with the support of system dynamics (SD) and the case study methods. Initially, a mental model is developed followed by the causal loop diagram based on in-depth interviews, focus group discussions and observation techniques. The causal model helps to understand the linkages between the associated variables for each issue. Finally, the causal loop diagram is transformed into a stock and flow (quantitative) model, which is a prerequisite for SD-based simulation modelling. A decision support system (DSS) is then developed to analyse the complex decision-making process along the supply chains.

The findings reveal that integration of the supply chain can bring economic, social and environmental sustainability along with a structured production process. It is also observed that the poultry industry can apply the model outcomes in the real-life practices with minor adjustments. This present research has both theoretical and practical implications. The proposed model’s unique characteristics in mitigating the existing problems are supported by the sustainability and supply chain theories. As for practical implications, the poultry industry in Bangladesh can follow the proposed supply chain structure (as par the research model) and test various policies via simulation prior to its application. Positive outcomes of the simulation study may provide enough confidence to implement the desired changes within the industry and their supply chain networks.

Details

Sustaining Competitive Advantage Via Business Intelligence, Knowledge Management, and System Dynamics
Type: Book
ISBN: 978-1-78560-707-3

Keywords

Abstract

Details

Airport Design and Operation
Type: Book
ISBN: 978-0-08-054643-8

Case study
Publication date: 5 April 2022

Mohammad Rishad Faridi, Arun Patni, Ryhan Ebad and Neelima Patni

At the end of the case study discussion, students will able to state the importance of outsourcing with comparing pros and cons in business decision-making; review the…

Abstract

Learning outcomes

At the end of the case study discussion, students will able to state the importance of outsourcing with comparing pros and cons in business decision-making; review the value bestowed to the community in using sustainable raw material while at the same time conserving the ancient style of artwork particular to the area; discuss the utility of the products manufactured by “Flying Colours,” especially for the lockdown period which was because of the pandemic; and demonstrate and interpret the use of shark and mosquito bite matrix.

Case overview/synopsis

Arun Kumar Patni, 47, and his wife Neelima Patni, 43, are co-founders of Flying Colours, a start-up company based in Jaipur, in the state of Rajasthan, India. Their enterprise was engaged in the manufacturing and marketing of bird products and accessories, including bird feeders, bird houses, earthen water bowls, etc. In July 2020, post-lockdown, they were desperate to hire carpenters to restart their factory. However, COVID-19 posed a serious challenge, making it very difficult to replace their skilled carpenters, who had returned to their native places and had not come back. This disrupted production and order fulfilment. Keeping this situation in perspective in anticipation of the continuing pandemic crisis, Neelima was in favour of outsourcing basic production and designing the birdfeed decoration and artwork in-house. Meanwhile, Arun instead favoured continuing full in-house production as before, by hiring replacement carpenters. Yet for an in-house full-scale production, procuring raw material was a difficult task because of the lockdown. The situation had earlier taken a turn for the worse when Arun had advertised an exchange marketing policy to let customers return their old bird feeders for a 20% discount on a new one. This campaign was a huge success and resulted in a sales spike but unfortunately it caused a huge stock of returned products in their warehouse. Arun initially planned to repair and resell them as refurbished products. It now seemed impossible, because local carpenters demanded higher labour charges than the regular carpenters did. Flying Colours had provided skills workshops and hired external trainers to train unskilled carpenters prior to lockdown, so now all the training investment was in vain. Cash liquidity, sales, marketing, etc. were almost at a standstill.

Complexity academic level

This case particularly focuses on undergraduate-level students pursuing business or commerce programs, especially those studying core course: Entrepreneurial Strategic Management.

Supplementary materials

Teaching notes are available for educators only.

Subject code

CSS 3: Entrepreneurship.

Details

Emerald Emerging Markets Case Studies, vol. 12 no. 2
Type: Case Study
ISSN: 2045-0621

Keywords

Article
Publication date: 11 January 2022

Weishi Chen, Yifeng Huang, Xianfeng Lu and Jie Zhang

This paper aims to review the critical technology development of avian radar system at airports.

Abstract

Purpose

This paper aims to review the critical technology development of avian radar system at airports.

Design/methodology/approach

After the origin of avian radar technology is discussed, the target characteristics of flying birds are analyzed, including the target echo amplitude, flight speed, flight height, trajectory and micro-Doppler. Four typical airport avian radar systems of Merlin, Accipiter, Robin and CAST are introduced. The performance of different modules such as antenna, target detection and tracking, target recognition and classification, analysis of bird information together determines the detection ability of avian radar. The performances and key technologies of the ubiquitous avian radar are summarized and compared with other systems, and their applications, deployment modes, as well as their advantages and disadvantages are introduced and analyzed.

Findings

The ubiquitous avian radar achieves the long-time integration of target echoes, which greatly improves detection and classification ability of the targets of birds or drones, even under strong background clutter at airport. In addition, based on the big data of bird situation accumulated by avian radar, the rules of bird activity around the airport can be mined to guide the bird avoidance work.

Originality/value

This paper presented a novel avian radar system based on ubiquitous digital radar technology. The authors’ experience has confirmed that this system can be effective for airport bird strike prevention and management. In the future, the avian radar system will see continued improvement in both software and hardware, as the system is designed to be easily extensible.

Details

Aircraft Engineering and Aerospace Technology, vol. 94 no. 3
Type: Research Article
ISSN: 1748-8842

Keywords

Article
Publication date: 14 February 2022

Yile Zhang, Yadong Zhou and Youchao Sun

The purpose of this paper is to analyze the bird impact damage of fuselage composite stiffened structures by numerical method and to evaluate the damage and the bird

Abstract

Purpose

The purpose of this paper is to analyze the bird impact damage of fuselage composite stiffened structures by numerical method and to evaluate the damage and the bird impact resistance of different structures.

Design/methodology/approach

The deformation and damage of composite stiffened plates during bird impact are numerically analyzed by the explicit finite element software LS-DYNA. A comparative study on the numerical calculation results was conducted by using SPH (Smoothed Particle Hydrodynamics)-FEM (Finite Element Method) modeling and simulation. First, the I-shaped, T-shaped, straight stiffened plates and unstiffened plate were designed. Second, the accuracy of the bird model was verified and further used to evaluate bird strikes on composite stiffened plate. Third, the results of damage modes as well as displacements of the stiffened plates were compared.

Findings

The stiffeners can increase the local stiffness of the composite panel, which can effectively inhibit the bird’s movement along the impact direction. Adding stiffeners can change the panel matrix tension damage from global distribution to local distribution mode; however, the impact damage distribution and the ability to inhibit damage propagation can differ for different stiffened panels. Especially, the I-stiffened panel exhibits a better anti-bird strike performance.

Originality/value

The analysis of geometric parameters of structural components by numerical methods can reduce the cost of the design phase and has been widely used in aircraft design. The present study evaluated the bird impact damage of composite stiffened plates with different structures, which provides a guideline for selecting the stiffened plate structure in the fuselage skin.

Details

Aircraft Engineering and Aerospace Technology, vol. 94 no. 6
Type: Research Article
ISSN: 1748-8842

Keywords

Article
Publication date: 25 February 2021

Petros V. Perdikoulis, Ioannis K. Giannopoulos and Efstathios E. Theotokoglou

The purpose of this paper is to use numerical methods early in the airframe design process and access the structural performance of wing leading edge devices made of…

Abstract

Purpose

The purpose of this paper is to use numerical methods early in the airframe design process and access the structural performance of wing leading edge devices made of different materials and design details, under bird strike events.

Design/methodology/approach

Explicit finite element analysis was used to numerically model bird strike events.

Findings

Structural performance charts related to materials and general design details were drawn to explore the design space dictated by the current applicable airworthiness requirements.

Practical implications

This paper makes use of the current capability in the numerical tools available for structural simulations and exposes the existing limitations in the terms of material modelling, material properties and fracture simulation using continuum damage mechanics. Such results will always be in the need of fine-tuning with experimental testing, yet the tools can shed some light very early in the design process in a relative inexpensive manner, especially for design details down selection like materials to use, structural thicknesses and even design arrangements.

Originality/value

Bird strike simulations have been successfully used on aircraft design, mainly at the manufactured articles design validation, testing and certification. This paper presents a hypothetical early design case study of leading edge devices for appropriate material and skin thickness down selection.

Details

Aircraft Engineering and Aerospace Technology, vol. 93 no. 2
Type: Research Article
ISSN: 1748-8842

Keywords

Article
Publication date: 25 February 2014

Huansheng Ning and Weishi Chen

Bird strike risk (BSR) evaluation is a significant part of the avian radar system worldwide installed and operated at airports. The paper aims to discuss these issues.

1070

Abstract

Purpose

Bird strike risk (BSR) evaluation is a significant part of the avian radar system worldwide installed and operated at airports. The paper aims to discuss these issues.

Design/methodology/approach

This paper proposed a method using the real-time avian radar data to evaluate BSR with the estimations of bird strike probability and severity. The probability estimation model considered the attributes of the relative positions of the flock and the runway, the altitude of the flock and the aircraft, the flight path of the aircraft, and the ability of the bird species to avoid collision. The severity was estimated by the combination of the Delphi method and the analytic hierarchy process (AHP), called DAHP, which took full advantage of the expert knowledge and quantitative calculation.

Findings

The model was tested successfully on the simulated data at Beijing Capital International Airport (BCIA) with three runways and real data at Beihai Fucheng Airport (BFA) with one runway.

Practical implications

The BSR evaluation model was specifically designed for the airports with avian radars. It enabled the airport managers to objectively evaluate the risk in real time and to take effective measures.

Originality/value

The proposed BSR evaluation model was constructed with the real-time features of birds and aircraft based on the DAHP framework, providing scientific guidance for aviation safety and environmental management at the airport.

Details

Aircraft Engineering and Aerospace Technology: An International Journal, vol. 86 no. 2
Type: Research Article
ISSN: 0002-2667

Keywords

Open Access
Article
Publication date: 15 May 2020

Bryan Raveen Nelson, Mazrul Aswady Mamat, Wong Cheeho and Salwa Shahimi

Birds are biological indicators for environment health in which their sightings and abundance could reflect a certain situation or become evaluation tool for co-existence…

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Abstract

Purpose

Birds are biological indicators for environment health in which their sightings and abundance could reflect a certain situation or become evaluation tool for co-existence of another species. Here, the study aims to observe urban settlements with substantial forestation, may it be artificial or natural, and the occurrence of bird assemblage across time. Considering the foraging activity of birds hardcoded with sustainability, their spatial overlap resultant into service provision, which can mean, baseline occurrence or an expected encounter equates to support system for ecological vigour.

Design/methodology/approach

From this, birds could indicate external environment vulnerability related to climatic fluctuations, whereby documentation of their arrival across spatial-temporal regimes allowed us to understand their distribution between residential and forested areas.

Findings

Though urban birds are abundant and viewed less important for conservation, the existence of certain species such as long-tailed shrike and little green pigeon disclose the types of food they consume and, the other types of birds attracted to their prey. With regard, the sightings of these birds would mean an encounter with 20 or more other species at a bird watching occasion, though it is limited to the sightings of urban birds.

Originality/value

Subject to criteria for green space, attaining plenty of bird species provides understanding of food availability, the support services and opportunity for urban birds to thrive in midst the opportunity for resources such as food, perching grounds and sufficient numbers of counterparts to reproduce into healthy urban bird populations.

Details

Ecofeminism and Climate Change, vol. 1 no. 1
Type: Research Article
ISSN: 2633-4062

Keywords

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