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Article
Publication date: 5 October 2010

Steven E. Wallis

The purpose of this paper is to investigate the internal structure of Gandhi's ethics as a way to determine opportunities for improving that system's ability to influence…

2622

Abstract

Purpose

The purpose of this paper is to investigate the internal structure of Gandhi's ethics as a way to determine opportunities for improving that system's ability to influence behavior. In this paper, the author aims to work under the idea that a system of ethics is a guide for social responsibility.

Design/methodology/approach

The data source is Gandhi's set of ethics as described by Naess. These simple (primarily quantitative) studies compare the concepts within the code of ethics, and their relationships to one another.

Findings

Gandhi's ethics are robust at the 0.25 level (the scale is zero to one – zero is lowest). This is consistent with theories of the social sciences (that do not work well in practice). Gandhi's success might be ascribed to his leadership ability.

Research limitations/implications

Some suggest this approach is reductionist because of its superficial similarity to approaches of physical science. The implications for research are profound. First, this approach provides an objective method for comparing (and so, advancing) systems of ethics. Second, this paper suggests the opportunity to compare the internal structure of ethics with “external” aspects – the implementation of ethical systems.

Practical implications

By itself, Gandhi's system of ethics cannot be reliably applied in practice ‐ it cannot be expected to change behavior more than any other system of ethics. This raises concerns about other ethical codes as well. The practical implications of the form of analysis presented in this paper are immense because it provides a way for practitioners to objectively compare two codes of ethics and determine which one will be more effective.

Originality/value

The approach documented in the paper has never been applied to the field of ethics. It is unique in that it addresses the “internal” structure of a system of ethics (compared to the “external”, or application, of ethical systems).

Details

Social Responsibility Journal, vol. 6 no. 4
Type: Research Article
ISSN: 1747-1117

Keywords

Article
Publication date: 2 November 2018

Wei Jiang, Yu Yan, Lianqing Yu, Hong Jun Li, Lizhen Du and Wei Chen

In the high-altitude, high-voltage electromagnetic interference operation environment, due to the parameters perturbation for robot control model caused by uncertainties and…

Abstract

Purpose

In the high-altitude, high-voltage electromagnetic interference operation environment, due to the parameters perturbation for robot control model caused by uncertainties and disturbances, and with the poor effective of the conventional proportional–integral–derivative (PID) control to parameters perturbation system, the mathematical model of power cable live operation robot joint PID closed-loop control system is established.

Design/methodology/approach

The corresponding joint motion robust PID control method is also proposed based on Kharitonov theory, the system robust stability conditions including the sufficient and necessary conditions are deduced and obtained and the solving process of robust PID control parameters stability region is provided.

Findings

Finally, the simulation research on robot joint motion PID control system is also launched in MATLAB environment based on Kharitonov theory. The results show that the conventional PID control obtains better control effect only to nominal model but is ineffective to parameter perturbation system, while robust PID obtains sound control effect to parameter perturbation system. Compared with H8 robust PID, the Kharitonov robust PID has better control effect which meet the system design requirements of joint motor quickly response, high tracking accuracy and sound stability. Finally, the validity and engineering practicability are verified by 220-kV living replacing damper operation experiment.

Originality/value

This paper has described the development of a damper replacement power cable live maintenance robot experimental prototype, which greatly improves operation efficiency and deals with the safety problem of operation in a high-voltage environment. A general manipulator motion control model of the power cable robot is established; the Kharitonov theory-based parameter perturbation robust motion control method of damper replacement robot is also obtained. Through the simulation comparison, it is verified that the Kharitonov control has more superiority for dealing with the parameter perturbation systems under the premise of ensuring the stability motion. The field experiment has further confirmed the engineering practicability.

Details

Industrial Robot: An International Journal, vol. 45 no. 6
Type: Research Article
ISSN: 0143-991X

Keywords

Article
Publication date: 5 May 2015

Jožef Ritonja, Drago Dolinar and Boštjan Polajžer

Oscillations and related stability problems of synchronous generators are harmful and can lead to power outage. Studies have shown that currently available commercial applications…

Abstract

Purpose

Oscillations and related stability problems of synchronous generators are harmful and can lead to power outage. Studies have shown that currently available commercial applications of power system stabilizers (PSSs) do not ensure damping of modern generators operating in contemporary power systems at peak performances. The purpose of this paper is to contribute to development of the new PSS, which would replace currently used linear stabilizers.

Design/methodology/approach

A synthesis of theoretical research, numerical simulations and laboratory experiments was the basic framework.

Findings

Within a problem analysis, it was empirically confirmed that the currently used PSSs are not up to the needs of the present power systems. Based on an analysis of the contemporary solutions, it was found out that the most appropriate solutions are adaptive control and robust control. In this paper, the robust sliding mode theory was implemented for the PSS design.

Research limitations/implications

The most notable restriction of rapid transfer of scientific solutions into a practice represents limited testing of proposed solutions on synchronous generators in power plants.

Practical implications

The new PSS which would replace currently used conventional stabilizers will have an exceptional value for all producers of the excitation systems.

Originality/value

The originality of the paper represents the development of the new robust sliding mode PSS and qualitative assessment of the developed stabilizer with two competitive stabilizers, i.e. the conventional linear- and advanced direct adaptive-PSS.

Details

COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, vol. 34 no. 3
Type: Research Article
ISSN: 0332-1649

Keywords

Book part
Publication date: 24 April 2023

Yixiao Sun

The author develops and extends the asymptotic F- and t-test theory in linear regression models where the regressors could be deterministic trends, unit-root processes…

Abstract

The author develops and extends the asymptotic F- and t-test theory in linear regression models where the regressors could be deterministic trends, unit-root processes, near-unit-root processes, among others. The author considers both the exogenous case where the regressors and the regression error are independent and the endogenous case where they are correlated. In the former case, the author designs a new set of basis functions that are invariant to the parameter estimation uncertainty and uses them to construct a new series long-run variance estimator. The author shows that the F-test version of the Wald statistic and the t-statistic are asymptotically F and t distributed, respectively. In the latter case, the author shows that the asymptotic F and t theory is still possible, but one has to develop it in a pseudo-frequency domain. The F and t approximations are more accurate than the more commonly used chi-squared and normal approximations. The resulting F and t tests are also easy to implement – they can be implemented in exactly the same way as the F and t tests in a classical normal linear regression.

Article
Publication date: 14 June 2013

Bart L. MacCarthy, Michael Lewis, Chris Voss and Ram Narasimhan

The world is changing – economically, technologically, politically, and socially. As an academic discipline, operations management (OM) is, almost by definition, close to…

2329

Abstract

Purpose

The world is changing – economically, technologically, politically, and socially. As an academic discipline, operations management (OM) is, almost by definition, close to practice. Are our OM research methods fit for purpose for the new age? This paper reflects on and develops the principal themes discussed in the “OM Methodology” Special Session at the 2011 EurOMA Conference in Cambridge, UK. The paper aims to discuss these issues.

Design/methodology/approach

The emerging landscape in which future OM research will be conducted is discussed. The paper provides a range of perspectives on the research challenges facing the discipline with respect to what the authors research and how the authors research it. The range of methods open to us and their relative merits and challenges are debated.

Findings

The traditional research divide between quantitative modelling, often normative in outlook, and the more reflective modes of qualitative enquiry, with a wide spectrum of empirical work in between, is reflected in the different academic traditions, groupings, conferences, and publications across the discipline. Research should not be driven by methodological convenience but by the needs of a changing world. Rather than a sterile “quants versus qual” debate, the paper argues that a rich diversity of approaches can provide a reinforcing cycle to generate relevant, interesting and exciting research underpinned by robust and valid theory.

Originality/value

The paper presents detailed reflections from leading researchers on contemporary and future OM research, arguing that research approaches must evolve that reflect the new realities to further enhance OM as a theoretically sound and practically relevant discipline.

Details

International Journal of Operations & Production Management, vol. 33 no. 7
Type: Research Article
ISSN: 0144-3577

Keywords

Article
Publication date: 8 July 2014

Vikram Murthy and Aasha Murthy

The purpose of this paper is to posit a hierarchical classification of enactments, practices and virtues that comprise an emerging adaptive leadership response to the prevailing…

Abstract

Purpose

The purpose of this paper is to posit a hierarchical classification of enactments, practices and virtues that comprise an emerging adaptive leadership response to the prevailing volatile, uncertain, complex and ambiguous (VUCA) conditions.

Design/methodology/approach

Reports and discusses the findings of two neo-classical grounded theory research studies to theorise augmented leadership repertoires for VUCA worlds. The first study was conducted with eight large regional and multinational organisations in Australia. The second is an on going, longitudinal study undertaken with 18 regional, national and multinational organisations in New Zealand.

Findings

The first neo-classical grounded theory study in Australia identifies a set of emerging leadership practices labelled, “Zeitgeist – Integrating Cognition, Conscience and Collective Spirit”, as part of such a repertoire. The preliminary results of the second neo-classical grounded theory research extension in New Zealand, results in the further grounded theorising of the ensemble leadership repertoire (ELR), which is an emerging and hierarchical classification of leadership enactments, practices and virtues for prevailing times. The classification is robust because of its methodological similarities and conceptual congruence with other emerging and well-accepted classifications like, for example, character strengths in positive psychology.

Originality/value

The grounded theorising provides a core category of the ELR which has its origins in substantive context. It lists 93 enactments inducted from leaders’ key phrases. These enactments in turn aggregate in relational sets through the process of constant comparison to describe 14 practices, which in sets of dyads and triads describe the five zeitgeist leadership virtues of being present, being good, being in touch, being creative and being global.

Details

World Journal of Entrepreneurship, Management and Sustainable Development, vol. 10 no. 3
Type: Research Article
ISSN: 2042-5961

Keywords

Article
Publication date: 2 January 2018

Yanhua Han

The purpose of this paper is to model the aircraft-cargo’s coupling dynamics during ultra-low altitude heavy cargo airdrop and to design the aircraft’s robust flight control law…

Abstract

Purpose

The purpose of this paper is to model the aircraft-cargo’s coupling dynamics during ultra-low altitude heavy cargo airdrop and to design the aircraft’s robust flight control law counteracting its aerodynamic coefficients perturbation induced by ground effect and the disturbance from the sliding cargo inside.

Design/methodology/approach

Aircraft-cargo system coupling dynamics model in vertical plane is derived using the Kane method. Trimmed point is calculated when the cargo fixed in the cabin and then the approximate linearized motion equation of the aircraft upon it is derived. The robust stability and robust H optimal disturbance restraint flight control law are designed countering the aircraft’s aerodynamic coefficients perturbation and the disturbance moment, respectively.

Findings

Numerical simulation shows the effectiveness of the proposed control law with elevator deflection as a unique control input.

Practical implications

The model derived and control law designed in the paper can be applied to heavy cargo airdrop integrated design and relevant parameters choice.

Originality/value

The dynamics model derived is closed, namely, the model can be called in numerical simulation free of assuming the values of parachute’s extraction force or cargo’s relative sliding acceleration or velocity as seen in many literatures. The modeling is simplified using Kane method rather than Newton’s laws. The robust control law proposed is effective in guaranteeing the aircraft’s flight stability and disturbance restraint performance in the presence of aerodynamic coefficients perturbation.

Details

Aircraft Engineering and Aerospace Technology, vol. 90 no. 1
Type: Research Article
ISSN: 1748-8842

Keywords

Book part
Publication date: 21 November 2014

Yixiao Sun

New asymptotic approximations are established for the Wald and t statistics in the presence of unknown but strong autocorrelation. The asymptotic theory extends the usual…

Abstract

New asymptotic approximations are established for the Wald and t statistics in the presence of unknown but strong autocorrelation. The asymptotic theory extends the usual fixed-smoothing asymptotics under weak dependence to allow for near-unit-root and weak-unit-root processes. As the locality parameter that characterizes the neighborhood of the autoregressive root increases from zero to infinity, the new fixed-smoothing asymptotic distribution changes smoothly from the unit-root fixed-smoothing asymptotics to the usual fixed-smoothing asymptotics under weak dependence. Simulations show that the new approximation is more accurate than the usual fixed-smoothing approximation.

Article
Publication date: 7 January 2019

Mohammad Ali Ashraf

The purpose of this paper is twofold: first, to examine the influence of working condition on faculty retention and quality education in the private higher education sector; and…

Abstract

Purpose

The purpose of this paper is twofold: first, to examine the influence of working condition on faculty retention and quality education in the private higher education sector; and second, to see whether there is any mediating role of faculty retention linking working condition and quality education in the private universities in Bangladesh.

Design/methodology/approach

To attain these objectives, a total of 516 data were collected from the faculty members of the private universities located all over the country based on random sampling procedure. Data were analyzed using structural equation modeling technique.

Findings

The findings of the study reveal that though working condition has a direct significant influence on both faculty retention and quality education and faculty retention has a partial mediating influence on quality education in private higher education institutes in Bangladesh.

Research limitations/implications

From a research perspective, the study results demonstrate once again the robustness of the Muslow’s hierarchy need theory of motivation for helping to explain the faculty members of the private universities. As more and more studies of faculty behavior and its antecedents are done within the similar framework, the author is more able to discover and confirm which antecedents are most important, helping the author build a robust theory of quality education affected based on human resource practices by the management of the institutes.

Practical implications

From a practical perspective, as a cumulative body of work on the nexus between human resource management and quality education emerges, the author will be better able to advise private university authorities on the elements they need to address in order to excel quality education. In this study, the one area of findings that may help university authorities the most concerns work environment. These findings imply that in order to excel quality education the authorities of the private universities should focus more on friendly and enjoyable working environment for prolonging faculty retention and excelling quality education.

Originality/value

This study has revealed an important contribution focusing the influence of working condition on faculty retention as well as quality education in private universities in Bangladesh.

Details

International Journal of Educational Management, vol. 33 no. 1
Type: Research Article
ISSN: 0951-354X

Keywords

Article
Publication date: 30 September 2020

Wei Jiang, Dehua Zou, Xiao Zhou, Gan Zuo, Gao Cheng Ye and Hong Jun Li

The purpose of this study is to solve the key technical problems of the practical application of electric robots. The UHV multi-split transmission line power cable operation robot…

Abstract

Purpose

The purpose of this study is to solve the key technical problems of the practical application of electric robots. The UHV multi-split transmission line power cable operation robot is an important equipment to ensure the reliable operation of high voltage lines and is a useful exploration to realize high-quality power transmission. As the robot system platform equipment mature and operation environment gradually become more complex, the double arm coordination motion control in extreme environment becomes one of the main bottleneck for its practical in power system.

Design/methodology/approach

This paper summarizes the key technologies related to power cable robots, and aims at key technical indicators such as operation reliability, operation efficiency and operation quality in the robot’s practical process. The dynamic evolution mechanism of the robot’s mechanical configuration, the multi-physics information fusion algorithm in extreme environments, the robot’s autonomous positioning and its error compensation control, the robot’s robust motion control in extreme environments and the dual-arm force-position hybrid coordination control and the dynamic distribution and elimination mechanism of internal forces in the closed chain between robots and operating objects, all the research methods and solutions of the key technologies are proposed, respectively.

Findings

Finally, a new control architecture for power cable robots in the background of the Ubiquitous Power Internet of Things is proposed so as to manage the operation and maintenance of electric power systems. The above key technologies are a new exploration of the operation and maintenance management of EHV (Extra High Voltage) multi-split transmission lines which have laid a solid theoretical foundation for the power cable robot.

Originality/value

High voltage transmission line is the main channel of power transmission. It is an important means to improve the integration of operation and maintenance management of power system to use robot instead of manual inspection and maintenance of power line, in the promotion and application of electric robot. The authors pay attention to the practicability, and the breakthrough of key technologies of robot is the premise of the practicability of robot. In this paper, the robot operation and control in multi-task and complex scenes are studied. The research and implementation of the main key technologies, such as the dynamic evolution mechanism of robot configuration, the coupling and fusion law of multi physical fields in the extreme electric power environment, the autonomous positioning control of manipulator, the robust control of robot in the super electromagnetic field environment and the cooperative operation control of multi manipulator, are discussed.

Details

Industrial Robot: the international journal of robotics research and application, vol. 48 no. 1
Type: Research Article
ISSN: 0143-991X

Keywords

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