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One of the major problems faced by industry is vibrations in rotating parts. Vibration is a to-and-fro movement of rotating mechanical parts and has many detrimental effects on machinery. It is obvious that no movement can be achieved without consumption of energy. All the energy consumed in vibration of mechanical parts is useless. Unbalance is one of the most common reasons for vibrations. This paper aims to experimentally evaluate the effect of unbalance in a shaft–rotor system on power consumption. An experimental setup consisting of a shaft and a rotor mounted on antifriction bearing was built-up. The shaft was driven through a flexible coupling, by a variable speed DC motor. The shaft–rotor system was rotated at different speeds and electrical power consumed by the system was measured at specific speeds varying from 1,200 to 2400 rpm. The rotor was balanced to grade G6.3 at 1,200 rpm. The power consumption by shaft in balanced condition was taken as baseline data for the further work. The rotor was then made unbalanced by adding different masses at 60 mm radius, and power consumption was recorded again at the same speeds. It was observed that average power loss due to unbalance is of 0.11watt/gm.mm unbalance. This can amount to 2.75 kw if there is unbalance of 50 gm at a radius of 500 mm. This work is meant to emphasis on the fact that the power consumption can be reduced if the vibrations can be kept under control.

The experimental setup consisting of a rotor–shaft system was fabricated. The shaft was supported on two anti-friction bearings. The shaft is driven by a 0.25 HP DC motor. The speed of the motor can be varied by a speed controlling device. A digital ammeter and voltmeter are connected to measure the input current and voltage to the system. The rotor was rotated at different speeds after two-plane balancing and the parameters like voltage, current drawn, rms velocity (average of drive and non-drive side bearing) and displacement at 1× frequency were recorded. The base line data for the balanced shaft–rotor system were recorded for further use.

Power consumption increases with increase in unbalance at each of the speeds. Total power consumed at resonant frequency is high. The average power consumed “W/gm.mm” increases at higher speed due to increased damping force of lubricant in bearings combined with the effect of resonance. Average power consumed due to unbalance is about 0.11 W/gm.mm unbalance. It is important to reduce the vibration to save power which can be effectively achieved by balancing the rotating parts in the machinery.

The experimentation is done on a small rotor. When the same work is done on real situations where the rotors are heavy, we may expect some differences in the actual effect of unbalance on the power consumption.

The experimental work have a huge application in industry in condition monitoring. The power may tend to increase not only because of the unbalance but also due to other reasons of vibrations like misalignment, loose foundation, poor bearing conditions, etc. The power loss may increase due to any other reasons mentioned above. The degree of power saving due to steps taken for reducing vibration will depend on the existing vibration levels.

The work highlights the effect of power loss due to vibrations. Even (1 per cent) small amount of power saved can save millions of dollars in industry, as there are many rotating parts which run 24 × 7. The emphasis is on condition-based monitoring which will help in power saving beyond the conventional advantages of condition monitoring.

The experimentation clearly quantifies power loss in absolute form that is the power loss is expressed per gm.mm of unbalance and not as the percentage of electrical or mechanical power, input or output. The percentage values may be misleading some times, as SMALL percentage of large values is also LARGE and hence should be taken into consideration.

The paper draws extensively from Aristotle’s Poetics, a classical work on the aesthetics of drama. Drawing from symbolic and thematic elements from folklore and mythology, this paper aims to illustrate how the Poetics can be referenced as an allegorical device in the design of culture-building strategies and interventions.

This exploratory paper examines Aristotle’s “Poetics” and the range of creative expression this literature provides as a conceptual design framework for the development of a culture map in creating a distinctive organisational mythology. The Poetics articulates an Aristotelian perspective on theatre which infuses itself as a new language in offering structural and archetypical plot devices in the development of an organisational narrative.

Findings from this explorative study can provide a creative roadmap to culture practitioners and leaders, to be used as a determining reference point in developing culture maps and change management interventions.

Poetics has its detractors, notably Bertolt Brecht and Augusto Boal. Boal examines how Poetics promotes a narrative that suppresses free thinking and encourages a cult of feudal personality, therefore encouraging industrial and cultural oppression, which he rebelled against through the development of his “Theatre of the Oppressed”. This new kind of theatre discarded the Aristotelian model of thinking. Ideas proposed in the Poetics may also lend verisimilitude to the propagation of obsessive consumerism through the definitive symbolism it offers in the development of institutionalised personality cults.

The Poetics as a creatively driven reflexive study provides a forward movement in the study of culture design templates. Its definitive allegorical devices and metaphors act as action principles through which an enterprise culture and its value system can be examined and developed.

Uncertain times [e.g. coronavirus disease 2019 (COVID-19)] require service businesses to respond in creative, flexible and resilient ways. This paper aims to develop and test the theoretical relationship between digital transformation and organizational resilience (OR), and the consequences of OR on organizations and employees during turbulent times.

A scale development was first conducted with an expert panel. Later, 474 participants who work as employees in small and medium-sized service enterprises were recruited for structural equation modeling (SEM). Exploratory factor analysis (EFA), confirmatory factor analysis (CFA) and path analysis were conducted to test the relationship between dimensions of digital maturity, dimensions of OR and two consequential variables: organizational performance and employees’ state optimism.

Strategic technology investment helps organizations to develop systematic control sustain operations in crises but may not directly contribute to employees’ capabilities of accurately understanding external turmoil, actively seeking available resources and rapidly developing adaptive solutions. Transformation management intensity equips an organization with transformative vision, governance and culture, and such transformative built-in leadership enables the organization to embrace employees with talents and innovativeness and help employees grow their capabilities when facing crises. The dimensions of OR have different influences on the organization and employees.

This research develops and tests the dimensions and measurement items of OR for the services domain and empirically tested how the dimensions of digital maturity influence the dimensions of OR, and how OR influences the organization’s performance and employees’ state optimism.

Urea and thiourea have been investigated as corrosion inhibitors for 94/6 and 80/20 copper‐cadmium alloy electroplates in nitric acid solutions by weight‐loss and polarisation measurements. Both inhibitors are found to be quite effective for shorter duration of immersion. Potential and polarisation data indicate a predominant role of local cathodic areas in corrosion protection.

Presents a modification of Saniga′s model for joint economic design of process control parameters, i.e. sample size, sampling frequency and critical regions for X and R charts. The objective is to minimize the total system cost, which consists of the cost of sampling and charting, the cost of searching for and correcting the assignable causes of quality variation, the cost of downtime or production loss, and the cost of producing defective items which have to be reworked or scrapped. The modified model has been applied to control the internal profile milling of steam‐turbine blades. Highlights the saving potential of the optimum design of process control parameters.

To explore the potential for adoption of TQM in self‐financed technical institutions in the light of new demands and challenges posed by customers/students and society.

The paper presents use of quality function deployment (QFD) which prioritizes technical requirements and correlates them with various customers'/students' requirements for the present Indian context. As an extension to the basic model of QFD – house of quality (HOQ), the scope for futuristic improvements is explored through a four‐phased QFD process. Challenges involved in the implementation of TQM are investigated using an approach of force field analysis.

Identifies technical and students' requirements for the modern educational set‐up. Provides information about the severity of various technical requirements of competitive education. Recognizes the need for continuous improvement, cultural change and effective use of financial resources to improve the value addition at each level. Develops an understanding of the issues to be addressed at each phase of TQM implementation.

It is expected that insights gained will help sensitize the emerging self‐financed institutions towards the demands of new age students. Conclusions derived will also provide some opportunities for reflection by students, faculty members and leaders/top management of institutions for continuous development at an individual as well as institutional level.

A novelty of work lies in the use of a mix of qualitative and quantitative approaches, which not only evaluates the present system but develops an understanding of future challenges to continuous improvement.

In this chapter, Turkish educational system and institutional quality assessment initiatives of education are explained. And also, the relationship between educational quality assurance (QA) in Turkey and issues of effective schooling is summarised in terms of Turkish literature.

Education is widely accepted as a lifelong process. The school is an institution established in order to provide qualified education which contains complex and more abstract knowledge and ideas as well as literacy and simple numerical skills to the students. Each country has basically established education systems and educational institutions to ensure social integration, continuity and stability, and to sustain the social and cultural heritage of a society. Education in Turkey is one of the state’s basic functions according to the constitution and performed under the supervision and control of the state with the declaration of the Republic of Turkey. Ministry of National Education is responsible for the implementation of all education activities centrally managed in the Republic of Turkey. Higher Education Council (YÖK) is responsible for the management and thus the quality processes of the higher education institutions in Turkey. Two major attempts in this perspective are YÖK, which assesses the institutions with standards which are coherent with international accreditation institutions, and Higher Education Quality Council (YÖKAK), an independent and specific council which is established by YÖK. YÖK and YÖKAK are governmental-based quality-assessment institutions. Association for Evaluation and Accreditation of Teacher Colleges’ Educational Programs (EPDAD) is also an independent institution for quality assessment of education faculties which focusses on teacher training and education. The purpose of EPDAD is to strengthen the student learning in formal training and to ensure the quality standards for candidate teachers. Any undergraduate programme which meets the standards of EPDAD is accredited for three years. Standards of EPDAD are detailed in this chapter.

This study/paper aims to reach the core objective of hospitality order cancellation prediction (HOCP), that is, to identify potential cancellers from many customer bases, thereby enhancing the effectiveness of customer retention campaigns. However, few studies have focused on predicting hospitality order cancellation.

A novel profit-driven model for predicting hospitality order cancellation is proposed to bridge this research gap. The authors construct profit-driven extreme gradient boosting (XGBoost) based on a grid search on HOCP to maximize profit by selecting optimal hyperparameters of XGBoost.

Real-world data set is analyzed, and the proposed model yields more profits than other predictive models. Sensitivity analysis proves that the proposed model is robust to the key hyperparameter and application scenario. Furthermore, some preventive measures based on visual analysis results are provided to reduce the cancelled probability of orders.

This research will help hotel managers to transfer the modeling goal to profit orientation and encourage relevant researchers to interpret the prediction results of models for hotel order cancellation prediction in a post hoc manner. Besides, the proposed model can be applied to various enterprises with different average order profits and help managers optimize revenue management.

This research expands the relevant literature and offers guidance for predicting hospitality order cancellation from a profit-driven perspective at the customer level. The proposed model can provide macro-control to hotel managers and obtain the most satisfactory profits in micro-control.

The world population over the age of 60 is expected to increase from 900 million in 2015 to two billion by 2050. Retirement homes have emerged as a prominent housing alternative and become a trend for the older adults; however, older population in Malaysia could have a negative view of retirement homes. Different generations could have different perceptions of the value of retirement homes. This study aims to explore the value of retirement homes across diverse age cohorts in Malaysia.

A qualitative approach is adopted for this study. Thematic analysis is used to analyse the interview transcripts obtained from semi-structured interviews.

The results indicated that baby boomers tend to have more negative values towards retirement homes, whereas Generations X and Y demonstrated more favourable and positive values for retirement homes.

This study serves as a useful reference for housing developers, policymakers and the management of retirement homes to better understand how different age cohorts value retirement homes, thereby encouraging relevant housing strategies to enhance the quality and support systems of retirement homes in society.