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Article
Publication date: 15 August 2016

Kotaiba Aal, Laura Di Pietro, Bo Edvardsson, Maria Francesca Renzi and Roberta Guglielmetti Mugion

The purpose of this paper is to extend the understanding of innovation in service ecosystems by focussing on the role of values resonance in relation to the integration of brands…

3231

Abstract

Purpose

The purpose of this paper is to extend the understanding of innovation in service ecosystems by focussing on the role of values resonance in relation to the integration of brands, service systems and experience rooms.

Design/methodology/approach

An empirical, explorative case study of an innovative service system is carried out using a narrative approach and presented in the form of a saga.

Findings

Insights gleaned from the empirical study are used for conceptual developments. Analysis of the empirical case study is presented as four lessons linked to values, brands, service systems and experience rooms.

Originality/value

The paper extends a conceptual framework of innovative resource integration in service ecosystems. The paper also contributes four propositions to inform theory: values resonance is a basis for service innovation, the innovative integration of brands based on values resonance can foster innovation, the integration of resources across service system boundaries grounded in values resonance can enable innovation and the integration of experience rooms into a coherent servicescape based on values resonance can support novel forms of resource integration and value co-creation efforts in service ecosystems.

Details

Journal of Service Management, vol. 27 no. 4
Type: Research Article
ISSN: 1757-5818

Keywords

Article
Publication date: 7 August 2017

Raja Ambedkar Ande, Angappa Gunasekaran, Punniyamoorthy Murugesan and Thamaraiselvan Natarajan

Brand resonance will significantly improve the profits of the services industry in the twenty-first century. The purpose of this paper is to find the resonance score for modified…

2756

Abstract

Purpose

Brand resonance will significantly improve the profits of the services industry in the twenty-first century. The purpose of this paper is to find the resonance score for modified customer-based brand equity (CBBE) model in mutual fund financial services and improve the conceptualization of customer-based mutual fund services’ brand equity through brand resonance.

Design/methodology/approach

The path values of SEM model was used to estimate the relative weights of criteria and sub-criteria in analytic hierarchy process (AHP) model and it was empirically tested with a sample of 240 mutual fund investors.

Findings

The brand resonance using AHP has been quantified. The resonance quantification of each brand has been demonstrated using two renowned Indian mutual fund services brands State Bank of India and Hong Kong and Shanghai Banking Corporation.

Research limitations/implications

The interdependency of the factors which influence the resonance score is not explored.

Practical implications

Research findings provide useful guidelines for fund managers/analysts of mutual fund services companies while improving the brand equity and strong brand’s resonance with investors.

Originality/value

The paper examines quantification of resonance for modified CBBE model in mutual fund services using data from a sample of investors in India with two mutual fund brands. The AHP structure model helps firms effectively quantify the resonance score.

Details

Benchmarking: An International Journal, vol. 24 no. 6
Type: Research Article
ISSN: 1463-5771

Keywords

Article
Publication date: 1 March 1938

A.G. Pugsley

THOUGH resonance tests are now becoming familiar to most aeronautical engineers, it is perhaps desirable at the outset to indicate their general nature. They are vibration tests…

Abstract

THOUGH resonance tests are now becoming familiar to most aeronautical engineers, it is perhaps desirable at the outset to indicate their general nature. They are vibration tests carried out on an aeroplane with the immediate object of determining the natural frequencies and modes of its parts, and in particular, of its wings. The ultimate aim of resonance tests on a given aeroplane is to provide data to assist in the estimation of its critical flutter speeds, so that its liability to flutter troubles may be assessed.

Details

Aircraft Engineering and Aerospace Technology, vol. 10 no. 3
Type: Research Article
ISSN: 0002-2667

Article
Publication date: 6 March 2009

Berardi Sensale Rodriguez and Berardi Sensale Cozzano

The purpose of this paper is to introduce a fast and simple method to calculate an estimation of parameters of interest of microstrip antennas, such as the resonance frequencies…

Abstract

Purpose

The purpose of this paper is to introduce a fast and simple method to calculate an estimation of parameters of interest of microstrip antennas, such as the resonance frequencies for example.

Design/methodology/approach

The Trefftz collocation method will be used to solve the governing differential equations of the problem. This method uses trial functions that satisfy, in a certain region the governing differential equations. Complete sets of solutions of such equations are required so that completeness and convergence can be guaranteed. The values of the wavenumbers for which the solution of the governing equation is unbounded, are those correspondent to the resonance frequencies of the antenna. After finding the wavenumbers, with the help of empirical correction formulas (because of the effect of the fringing field), the actual resonance frequencies are determined.

Findings

The Trefftz collocation method was found to be a very simple, fast and accurate method for the computation of the electric field under the patch of a microstrip antenna. Results obtained from this method showed excellent accuracy with less computational effort than other methods previously used.

Research limitations/implications

Although the resonance wavenumbers may be accurate for any shape of antenna (because of the method convergence), the resonance frequencies might not be so accurate for irregular shapes since the parameters of the empirical formulas are approximated. Also the resonant cavity model is only valid for antennas made of thin substrates.

Originality/value

This formulation of the Trefftz method was for the first time applied to this problem, showing promising results.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 28 no. 2
Type: Research Article
ISSN: 0332-1649

Keywords

Article
Publication date: 27 August 2019

Rahmat Zaki Auliya, Muhamad Ramdzan Buyong, Burhanuddin Yeop Majlis, Mohd. Farhanulhakim Mohd. Razip Wee and Poh Choon Ooi

The purpose of this paper is to propose an alternative approach to improve the performance of microelectromechanical systems (MEMSs) silicon (Si) condenser microphones in terms of

Abstract

Purpose

The purpose of this paper is to propose an alternative approach to improve the performance of microelectromechanical systems (MEMSs) silicon (Si) condenser microphones in terms of operating frequency and sensitivity through the introduction of a secondary material with a contrast of mechanical properties in the corrugated membrane.

Design/methodology/approach

Finite element method from COMSOL is used to analyze the MEMS microphones performance consisting of solid mechanic, electrostatic and thermoviscous acoustic interfaces. Hence, the simulated results could described the physical mechanism of the MEMS microphones, especially in the case of microphones with complex geometry. A 2-D model was used to simplify computation by applying axis symmetry condition.

Findings

The simulation results have suggested that the operating frequency range of the microphone could be extended to be operated beyond 20 kHz in the audible frequency range. The data showed that the frequency resonance of the microphone using a corrugated Si membrane with SiC as the embedded membrane is increased up to 70 kHz compared with 63 kHz for the plane Si membrane, whereas the microphone’s sensitivity is slightly decreased to −79 from −76 dB. Furthermore, the frequency resonance of a corrugated membrane microphone could be improved from 26 to 70 kHz by embedding the SiC material. Last, the sensitivity and frequency resonance value of the microphones could be modified by adjusting the height of the embedded material.

Originality/value

Based on these theoretical results, the proposed modification highlighted the advantages of simultaneous modifications of frequency and sensitivity that could extend the applications of sound and acoustic detections in the ultrasonic spectrum with an acceptable performance compared with the typical state-of-the-art Si condenser microphones.

Details

Microelectronics International, vol. 36 no. 4
Type: Research Article
ISSN: 1356-5362

Keywords

Article
Publication date: 29 June 2012

Cem Onat, Melin Şahin and Yavuz Yaman

The purpose of this paper is to detail the design of a fractional controller which was developed for the suppression of the flexural vibrations of the first mode of a smart beam.

Abstract

Purpose

The purpose of this paper is to detail the design of a fractional controller which was developed for the suppression of the flexural vibrations of the first mode of a smart beam.

Design/methodology/approach

During the design of the fractional controller, in addition to the classical control parameters such as the controller gain and the bandwidth; the order of the derivative effect was also included as another design parameter. The controller was then designed by considering the closed loop frequency responses of different fractional orders of Continued Fraction Expansion (CFE) method.

Findings

The first, second, third and fourth order approximations of CFE method were studied for the performance analysis of the controller. It was determined that the increase in the order resulted in better vibration level suppression at the resonance. The robustness analysis of the developed controllers was also conducted.

Practical implications

The experimentally obtained free and forced vibration results indicated that the increase in the order of the approximations yielded better performance around the first flexural resonance region of the smart beam and proved to yield better performance than the classical integer order controllers.

Originality/value

Evaluation of the performance of a developed fractional controller was realized by using different approach orders of the CFE method for the suppression of the flexural vibrations of a smart beam.

Details

Aircraft Engineering and Aerospace Technology, vol. 84 no. 4
Type: Research Article
ISSN: 0002-2667

Keywords

Article
Publication date: 1 June 2001

Mitsuru Kodama

This article discusses business processes that are capable of creating new value with many new customers and in which enterprises and customers both achieve innovation through the…

2272

Abstract

This article discusses business processes that are capable of creating new value with many new customers and in which enterprises and customers both achieve innovation through the provision of new services by the enterprise. Examples of innovation that venture companies providing IT‐based multimedia services have experienced over the past three years in Japan through mutual learning with customers are taken as case studies. In the last few years, Japan has seen rapid growth in the multipoint connection service market associated with multimedia videoconferencing systems. Behind this trend was the birth and explosive growth of the multipoint video communications market, which was initiated by NTT, Japan’s largest telecommunications carrier, in alliance with a joint venture business (NTT Phoenix Network Communication Inc.: hereafter, NTT Phoenix) comprised of heterogeneous US‐Japanese joint businesses. This article takes up the case of the world’s largest multipoint connection venture business, and considers how an NTT Phoenix’s customer value creation‐type business created a new video network service market in Japan.

Details

Managing Service Quality: An International Journal, vol. 11 no. 3
Type: Research Article
ISSN: 0960-4529

Keywords

Book part
Publication date: 12 May 2017

Mitsuru Kodama

This chapter goes into deeper discussion and consideration of holistic leadership through the concept of holistic leadership presented in Part 1 and analysis of a number of case…

Abstract

This chapter goes into deeper discussion and consideration of holistic leadership through the concept of holistic leadership presented in Part 1 and analysis of a number of case studies presented in Part 2. The chapter first analyzes and considers the concept of dialectical leadership, which is an element for achieving a balance between centralized leadership and distributed leadership at the psychological boundary layer located at the boundary layer between the formal organizational layer and the informal organizational layer from the perspective of four dimensions: the time axis, spatial axis, strategic axis, and management axis. This is because there is new knowledge gained from multiple case analyses and because dialectical leadership has an impact on management elements in these four dimensions when companies execute strategic knowledge creation processes to achieve business innovation. Second, the chapter discusses the concept of leadership interaction which occurs among leaders at the individual boundaries of the three-layered structure (practice layers) of the informal organization layer located in the business community, the psychological boundary layer located in the boundary layer of the business community, and the formal organization layer located in the formal organization, and the three management layers. Third, as demonstrated in the cases of Apple, Cisco Systems, Dyson, SoftBank, and Sony, strategic collaboration with other companies including customers is extremely important for those practitioners who are promoting business ecosystem strategies across different companies. To achieve this, synchronization of leadership at the three practice layers and three management layers in holistic leadership through boundary negotiations among individual leaderships across different companies is important. These concepts are discussed in this chapter. Fourth, this chapter indicates that excellent holistic leadership is necessary for practitioners to achieve strategic knowledge creation high in quality, but this requires leadership for value creation for the formation of new business communities that originate in the formation of “Ba.” The chapter also indicates that “practical wisdom” is an important element for practitioners in such value creation, and the presence of this element is a necessary condition for generating excellent holistic leadership.

Details

Developing Holistic Leadership
Type: Book
ISBN: 978-1-78714-421-7

Keywords

Article
Publication date: 19 August 2021

Morteza Ghaseminezhad, Aref Doroudi, Seyed Hossein Hosseinian and Alireza Jalilian

Voltage fluctuation (flicker) is a power quality disturbance that can produce several undesirable effects on industrial equipment. This paper aims to present the methodology and…

Abstract

Purpose

Voltage fluctuation (flicker) is a power quality disturbance that can produce several undesirable effects on industrial equipment. This paper aims to present the methodology and results of investigations undertaken to examine the speed and torque of an induction motor (IM) under voltage fluctuation conditions.

Design/methodology/approach

The IM response to different characteristics of voltage fluctuations is presented. It will be shown that under a special condition the IM torque can even reach two times the rated torque. To show how this occurs, a qualitative discussion is given on the motor response by linearized equations.

Findings

The small-signal analysis was used to determine the frequency which leads to maximum speed fluctuations. It was shown that, if the motor is excited with a modulation frequency (resonant frequency) which is one of its natural frequencies (modes), the mode will act as a fluctuating amplifier and greatly increase the amplitude of torque and speed fluctuations. Sensitivity analysis is also carried out to evaluate the influence of motor parameters on the resonance frequency. The results show that the resonance frequency is not affected at all by the changes in magnetizing reactance. This has been shown that magnetic saturation does not have any impact on the resonance frequency. The most effective parameters are rotor and stator resistances.

Originality/value

With the increasing popularity and use of arc furnace loads in the metallurgy industry and due to the wide application of large IMs in the industry, it is possible that the frequency of torque pulsation locates near a natural frequency and then will create an oscillation with a large magnitude, potentially leading to accelerated fatigue or severe damage of shaft. However, if this phenomenon occurs in industries, the resonance frequency must be filtered from the input voltage. Experimental results on a 1.1 kW, 380 V, 50 Hz, 2 pole IM are used to validate the accuracy of simulation results.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering , vol. 40 no. 4
Type: Research Article
ISSN: 0332-1649

Keywords

Article
Publication date: 9 June 2022

Afaq Ahmad, Zahoor Ahmad, Abdullah Ullah, Naveed Ur Ur Rehman, Muhammad Israr, Muhammad Zia, Haider Ali and Ataur Rahman

This study aims to investigate and compare the characteristics of three topologies of moving-magnet linear oscillating actuator (LOA) based on their mover position. Positive…

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Abstract

Purpose

This study aims to investigate and compare the characteristics of three topologies of moving-magnet linear oscillating actuator (LOA) based on their mover position. Positive aspects and consequences of every topology are demonstrated. Three topologies of axially magnetized moving-magnet LOA; outer mover, inner mover (IM) and dual stator (DS) are designed and examined. Due to its characteristically high thrust density and more mechanical strength, axially magnetized tubular permanent magnets (PMs) are used in these topologies.

Design/methodology/approach

LOAs are designed and optimized using parametric sweep, in term of design parameters and output parameters like thrust force, stroke and operating resonance frequency of the LOA. All the pros and cons of each topology are investigated and compared. Output parameters of the LOAs are compared using same size of the investigated LOAs. Mover mass, which plays a vital role in resonant operation, is analyzed for IM and DS designs. Investigated LOAs are compared with conventional designs of LOA for compressor in refrigeration system with regards of motor constant, stroke and thrust per PM mass.

Findings

This paper analyzes three topologies of moving-magnet LOAs. The basic difference between investigated LOAs is the radius of tubular-shaped mover from its central axis. All the design parameters are compared and concluded that thrust per PM mass of IMLOA is maximum. OMLOA provides maximum motor constant of value 180 N/A. DSLOA provides thrust force with motor constant 120 N/A and required intermediate materials of PMs. All the three designs give the best results in terms of motor constant and thrust per PM mass, compared to conventional designs of LOA.

Originality/value

This paper determines the impact of mover position from its central axis in a tubular-shaped moving-magnet LOA. This work is carried out in correspondence of latest papers of LOA.

Details

World Journal of Engineering, vol. 20 no. 6
Type: Research Article
ISSN: 1708-5284

Keywords

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