S. Vinodh and Sharath Kumar T.
– The purpose of this paper is to report a study in which creative design concepts have been applied to automotive brake rotor design.
Abstract
Purpose
The purpose of this paper is to report a study in which creative design concepts have been applied to automotive brake rotor design.
Design/methodology/approach
The literature review on creative design concepts and braking system scenario has been carried out. By studying the existing brake rotors and applying creative design concepts, modified rotor designs have been developed.
Findings
The experience gained out of the study indicated that braking efficiency and durability of the braking system can be significantly improved by the adoption of proposed designs.
Research limitations/implications
The research has been carried out for an automotive passenger car. The findings of this research work could be extended to similar models of buses and trucks.
Practical implications
The usage of the proposed designs reduces the driver’s effort in braking and adds significantly to the life of the rotors.
Originality/value
A case study has been reported to indicate the application of creative design concepts for enhancing the efficiency of automotive braking system in cars.
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Mohan Naik R., H. Manoj T. Gadiyar, Sharath S. M., M. Bharathrajkumar and Sowmya T. K.
There are various system techniques or models which are used for access control by performing cryptographic operations and characterizing to provide an efficient cloud and in…
Abstract
Purpose
There are various system techniques or models which are used for access control by performing cryptographic operations and characterizing to provide an efficient cloud and in Internet of Things (IoT) access control. Particularly in cloud computing environment, there is a large-scale distribution of these traditional symmetric cryptographic techniques. These symmetric cryptographic techniques use the same key for encryption and decryption processes. However, during the execution of these phases, they are under the problems of key distribution and management. The purpose of this study is to provide efficient key management and key distribution in cloud computing environment.
Design/methodology/approach
This paper uses the Cipher text-Policy Attribute-Based Encryption (CP-ABE) technique with proper access control policy which is used to provide the data owner’s control and share the data through encryption process in Cloud and IoT environment. The data are shared with the the help of cloud storage, even in presence of authorized users. The main method used in this research is Enhanced CP-ABE Serialization (E-CP-ABES) approach.
Findings
The results are measured by means of encryption, completion and decryption time that showed better results when compared with the existing CP-ABE technique. The comparative analysis has showed that the proposed E-CP-ABES has obtained better results of 2373 ms for completion time for 256 key lengths, whereas the existing CP-ABE has obtained 3129 ms of completion time. In addition to this, the existing Advanced Encryption Standard (AES) scheme showed 3449 ms of completion time.
Originality/value
The proposed research work uses an E-CP-ABES access control technique that verifies the hidden attributes having a very sensitive dataset constraint and provides solution to the key management problem and access control mechanism existing in IOT and cloud computing environment. The novelty of the research is that the proposed E-CP-ABES incorporates extensible, partially hidden constraint policy by using a process known as serialization procedure and it serializes to a byte stream. Redundant residue number system is considered to remove errors that occur during the processing of bits or data obtained from the serialization. The data stream is recovered using the Deserialization process.
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Sharath Baburaj and Manish Kumar
The study examined the impact of two dimensions of curiosity: joyous exploration (JE) and deprivation sensitivity (DSv) on informal learning effort (ILE) and attitude toward…
Abstract
Purpose
The study examined the impact of two dimensions of curiosity: joyous exploration (JE) and deprivation sensitivity (DSv) on informal learning effort (ILE) and attitude toward knowledge sharing (ATKS). The authors further explored the mediating effect of learning culture (LC) in the organization on the relationship of the two curiosity dimensions with ILE and ATKS. Additionally, the authors investigated the moderating effect of group dynamics in the form of intragroup task conflict (ITC) and relationship conflict (IRC) on the relationship of curiosity variables with LC, ILE and ATKS.
Design/methodology/approach
Survey instrument was distributed to 790 knowledge workers in various organizations through their HR managers. 403 responses were returned and used in the study.
Findings
JE, the self-determined manifestation of curiosity, impacts all elements of ILE and ATKS, while DSv influences a few aspects of ILE. The effect of JE on the dependent variables is, however, more substantial at low levels of ITC. ITC and IRC independently impact ILE, but only ITC moderates the relationships involving JE (but not DSv). LC emerges from JE (but not from DSv) and partially mediates its association with ILE and ATKS.
Originality/value
Through this work, we demonstrate the differential relevance of the curiosity dimensions and the intragroup conflict types – and their interaction effect – on learning effort and attitude toward knowledge sharing. The findings of the study open new avenues for interventions within the workplace learning and knowledge sharing domain.
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Arjun Chakravorty, Vibhash Kumar, Pankaj Singh and Sharath Baburaj
The paper aims to focus on underpinning the moderating role of work meaningfulness in alleviating the impact of general job demands on burnout directly and via work–family…
Abstract
Purpose
The paper aims to focus on underpinning the moderating role of work meaningfulness in alleviating the impact of general job demands on burnout directly and via work–family conflict by drawing on the conservation of resources theory.
Design/methodology/approach
Survey methodology was used for this study, using standardized instruments to assess general job demands, meaningfulness, work–family conflict and burnout. The survey was administered to school teachers (n = 800), and the data set was analyzed through SmartPLS 4.0.
Findings
This study ascertained that work meaningfulness moderated the relationship between general job demands and burnout. This study also found that general job demands under conditions of low work meaningfulness positively affected burnout through work–family conflict, thereby validating the moderated mediation model.
Originality/value
While several studies have established the relationship between general job demands, work–family conflict and burnout, to the best of the authors’ knowledge, this is the first study that examined the moderating role of work meaningfulness in the relationship, where work meaningfulness has emerged as a suitable moderator in lowering the impact of job demands on burnout via a work–family conflict. This study contributes to the extant literature on work meaningfulness and adds utility to practice.
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COVID entered the world in 2019 as a pandemic and the intensity of this health crisis is only increasing in several regions. Therefore, it is critical to study and detect the…
Abstract
COVID entered the world in 2019 as a pandemic and the intensity of this health crisis is only increasing in several regions. Therefore, it is critical to study and detect the public's frame of mind, government and economists' perception regarding the COVID crisis, as well as the primary worries that the public has expressed, and how this evolves over time. Responsive measures towards COVID-19 from the Indian economy have been explored as a key objective. Moreover, efforts have been made to explore recovery in India through economists and policymakers. Data have been explored through online interviews of key economists which were published in leading newspapers and covered through media channels such as NDTV, CNBC, etc. Moreover, various newspapers and reports were explored to understand government initiatives to address COVID-19 in India. The study's findings show how essential economic recovery from the second wave is in India, and how it may be achieved by strong fiscal and monetary policies, as well as specific attention to impoverished households, small and micro-businesses and increased employment. The short-term focus of the developing economic strategy must be on giving crisis relief to the most unprotected segments of society since long-term system stimulation is impossible.
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Shaheed Khan, Swarna M. Freeda Maria and Ajoy K. Bhattacharya
Call it the curse, the myth, the legend, the dacoits, the flora and fauna, the River, and the valley remains untouched and pristine and is home to many endemic species and is…
Abstract
Call it the curse, the myth, the legend, the dacoits, the flora and fauna, the River, and the valley remains untouched and pristine and is home to many endemic species and is blessed with stark but beautiful landscape, the surreal world of an era gone by, the ravage of the ravines, which have been preserved, protected, and conserved, albeit for the ‘ancient curses,’ and yes being a home to the ‘dreaded outlaws’ and ‘modern dacoits.’ Whether it was the fear for one’s life considering it was a dacoit area or also known as ‘gun powder area,’ or the curses that none wanted to garner to themselves, Chambal is slowly but steadily ebbing out of the dark shadows that it once was. The river itself passes through Madhya Pradesh, Rajasthan, and Uttar Pradesh, before joining the river Yamuna. Declared a Protected Area (PA) in 1978, the nomenclature of dark tourism will be ubiquitous to the Chambal River valley, considering that the area is dotted by a multitude of forts, and heritage destinations, that have frozen in the sands of time; either on account of the stories that meander, as the river does, with its deep ravines, ravines that invite the adventurer. It is the last bastion for the nation’s endangered wildlife, viz., Gharial, Maggar, Turtles, Otter, and the fresh water Dolphin, which has encouraged the Government to get the local community to be part of the special purpose vehicle promoting tourism. The authors known for their contribution to community-based ecotourism (CBE) have visited the Chambal area and worked with the communities and bureaucracy to ensure conclusions.
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Pradeep Vishnuram and Ramachandiran Gunabalan
Induction heating applications aided by power electronic control have become very attractive in the recent past. For cooking applications, power electronics circuits are very…
Abstract
Purpose
Induction heating applications aided by power electronic control have become very attractive in the recent past. For cooking applications, power electronics circuits are very suitable to feed power to multi loads with an appropriate control technique. The purpose of this paper is to develop a three leg inverter to feed power to three loads simultaneously and independently.
Design/methodology/approach
Pulse density modulation control technique is used to control the output power independently with constant switching frequency.
Findings
Multi-load handling converter with independent power control is achieved with reduced number of switching devices (two switches/per load) with simple control strategy.
Originality/value
The proposed system is simulated in MATLAB/Simulink, and the thermal analysis is carried out in COMSOL multi-physics software. The hardware realisation is performed for a 1 kW prototype with 20 kHz switching frequency and 10 kHz pulse density modulation frequency. PIC16F877A microcontroller is used to validate the experimental results for various values of control signals (DPDM). The simulation and experimental results are in good agreement and validates the developed system.
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As the lines between physical and virtual worlds blur, this chapter delves into the transformative potential of the smart technology of Metaverse for people's mobility. Through a…
Abstract
As the lines between physical and virtual worlds blur, this chapter delves into the transformative potential of the smart technology of Metaverse for people's mobility. Through a literature review, the concepts of smart city and Metaverse are revealed, and a comparison between urban mobility and virtual mobility is conducted, looking for a seamless blend of virtual and physical realms. This chapter paves the way for exciting possibilities, from enhanced travel experiences to environmental and societal benefits. However, cautiously, acknowledging the potential downsides of relying on the virtual realm in mobility, this chapter advocates for a balanced approach. Ultimately, this chapter seeks to ignite a conversation about reimagining our cities with Metaverse-driven mobility as a guiding force, where people and places harmoniously converge with Metaverse technology. By combining real-time information, virtual platforms, shared mobility services, efficient urban design and supportive policies, people can make smarter mobility choices that reduce environmental impact and enhance the overall travel experience.
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Deepesh Sharma and Naresh Kumar Yadav
In computer application scenario, data mining task is rarely utilized in power system, as an enhanced part, this work presented data mining task in power systems, to overcome…
Abstract
Purpose
In computer application scenario, data mining task is rarely utilized in power system, as an enhanced part, this work presented data mining task in power systems, to overcome frequency deviation issues. Load frequency control (LFC) is a primary challenging problem in an interconnected multi-area power system.
Design/methodology/approach
This paper adopts lion algorithm (LA) for the LFC of two area multi-source interconnected power systems. The LA calculates the optimal gains of the fractional order PI (FOPI) controller and hence the proposed LA-based FOPI controller (LFOPI) is developed.
Findings
For the performance analysis, the proposed algorithm compared with various algorithm is given as, 80.6% lesser than the FOPI algorithm, 2.5% lesser than the GWO algorithm, 2.5% lesser than the HSA algorithm, 4.7% lesser than the BBO algorithm, 1.6% lesser than PSO algorithm and 80.6% lesser than the GA algorithm.
Originality/value
The LFOPI controller is the proposed controlling method, which is nothing but the FOPI controller that gets the optimal gain using the LA. This method produces better performance in terms of converging behavior, optimization of controller gain, transient profile and steady-state response.
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Kaladhar Gaddala and P. Sangameswara Raju
In general, the optimal reactive power compensation could drastically enhance the performance of distributed network by the reduction of power loss and by enhancement of line…
Abstract
Purpose
In general, the optimal reactive power compensation could drastically enhance the performance of distributed network by the reduction of power loss and by enhancement of line loadability and voltage profile. Till now, there exist various reactive power compensation models including capacitor placement, joined process of on-load tap changer and capacitor banks and integration of DG. Further, one of the current method is the allocation of distribution FACTS (DFACTS) device. Even though, the DFACTS devices are usually used in the enhancement of power quality, they could be used in the optimal reactive power compensation with more effectiveness.
Design/methodology/approach
This paper introduces a power quality enhancement model that is based on a new hybrid optimization algorithm for selecting the precise unified power quality conditioner (UPQC) location and sizing. A new algorithm rider optimization algorithm (ROA)-modified particle swarm optimization (PSO) in fitness basis (RMPF) is introduced for this optimal selections.
Findings
Through the performance analysis, it is observed that as the iteration increases, there is a gradual minimization of cost function. At the 40th iteration, the proposed method is 1.99 per cent better than ROA and genetic algorithm (GA); 0.09 per cent better than GMDA and WOA; and 0.14, 0.57 and 1.94 per cent better than Dragonfly algorithm (DA), worst solution linked whale optimization (WS-WU) and PSO, respectively. At the 60th iteration, the proposed method attains less cost function, which is 2.07, 0.08, 0.06, 0.09, 0.07 and 1.90 per cent superior to ROA, GMDA, DA, GA, WS-WU and PSO, respectively. Thus, the proposed model proves that it is better than other models.
Originality/value
This paper presents a technique for optimal placing and sizing of UPQC. To the best of the authors’ knowledge, this is the first work that introduces RMPF algorithm to solve the optimization problems.