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The modern helicopters are designed with maximum serviceability and long life expectancy to ensure minimum life cycle cost. The purpose of this paper is to present a framework to incorporate the customer requirements on reliability and maintainability (R&M) parameters into the design and development phase of a contemporary helicopter, and to discuss the way to capture operational data to establish and improve the R&M parameters to reduce life cycle cost.

From the analysis, it is established that the reliability and maintainability cost is the major contributor to the life cost. The significant reliability and maintainability parameters which influence R&M cost are identified from analysis. The operational and design data of a contemporary helicopter are collected, compiled and analyzed to establish and improve the reliability and maintainability parameters.

The process depicted in the paper is followed for a contemporary helicopter and substantial amount of life cycle cost reduction is observed with improvement of R&M parameters.

The benefits of this methodology not only reduce life cycle cost but also improve the availability/serviceability through less failure and less time for scheduled maintenance. The methodologies also provide the reliability trends indicating potential area for design improvement.

The proposed approach assists asset managers to reduce the life cycle costs through improvement of R&M parameters.

The COVID-19 pandemic compelled the education system to switch over to emergency learning-teaching that is organised remotely. The present study investigated the experience of emergency remote learning (ERL) provided to higher-education learners. The study explores learners' perceived experience regarding the quality of learning resources, the effectiveness of teaching in a virtual climate and the scope of interaction in ERL.

Utilising a snowball sampling method, data were obtained from 470 Indian students of higher education through a cross-sectional online survey using a questionnaire through social media platforms. Data were analysed with relevant statistics.

The majority of students agreed that they had benefited from ERL. The overall impression of the ERL is positive; nevertheless, the students are perplexed and lack confidence in many aspects of the ERL. The Quality of ERL Resources, Teaching Effectiveness, Peer Interaction and Workloads were found to be significant factors in determining the quality of ERL.

Learning from the crisis of a pandemic is paramount for the education system. The education system could not go back to what was considered normal before the pandemic; rather it is time to assess and finalise strategies from the experience during this pandemic that could be taken by the higher-education institutions to make the ecosystem better equipped to create 21st-century learning climate. Accommodating the components of remote learning-teaching and engaging technology towards hybridisation are the needs of the time. Hence, assessing the quality of ERL from the learner's perspective might contribute to redesigning future remote learning.

In recent times, wool- and silk-blended fabrics are popular for creating glamourous products. Silk is blended to wool for creating more lustrous effect and to impart strength; on the other hand, wool is responsible for resilience, softness and warmth properties. Chemically both the fibres are protein-based, but the amount of amino acids is different. Due to this, the dye absorption behaviours of the two fibres from the same dye-bath are different. Wool is become darker than the silk fibre, if both the fibres are dyed together in a single bath dyeing process.

Here the wool fibres are first pre-treated with a commercial synthetic tanning agent (syntan) Mesitol HWS at three different pH values of 2.2, 3.2 and 4.2 and at three different concentrations: 5, 10 and 15 per cent. Then the syntan pre-treated wool fibres are dyed together with silk fibres maintaining the blend ratio as 80:20 by Telon Red MR, Telon Yellow M4GL and Telon Blue MRLW with sodium sulphate at three different concentrations of 10, 20 and 30 per cent.

The dye absorbency of the syntan-treated wool fibres decreased with increase in syntan concentration, whereas the colour strength of silk fibres increased. The resist effectiveness of wool fibres is increased from 6 to 59 per cent with increase of syntan concentration. So after the dyeing process, the colour strength of syntan-treated wool fibres are almost same with the colour strength of silk fibres. The washing fastness of the samples is improved, and wash fastness behaviour of both wool and silk fibres is almost same.

This paper gives an idea about the one bath dyeing process of wool- and silk-blended fabrics to achieve solid dyeing effect.

This paper aims to analyze the stock price reaction because of dividend reduction (DR) announcements in the Indian equity market, controlling for share repurchases.

The sample comprises National Stock Exchange (NSE) 500 companies listed in the NSE Ltd. covering a time span from year 2009 to 2019. Using the event study methodology, the authors measure the impact of DR announcements on security prices around the event day. The authors also examine the price response to DRs at the interim stage versus the final stage and identify the factors that drive the decision to reduce dividends at the interim level versus final level.

The authors find that overall DR announcements negatively impact abnormal returns. Firms that experience stronger adverse price reaction following DR announcements resort to share repurchase in the same year to boost stock prices. The authors find that interim DRs create more negative price reactions than final DRs. Finally, firms experiencing lower levels of prior year earnings, firms with smaller sizes and overvalued firms tend to reduce dividends at the interim level instead of postponing the reduction to the final level.

This paper examines stock price reaction because of DR announcements of Indian firms. The sample comprises firms that reduce dividends with contemporaneous share repurchases as well as firms that reduce dividends without contemporaneous repurchase activity. To the best of the authors’ knowledge, studies on substitution effect of dividends with buyback in the context of Indian equity market are rare. Further, investigating the difference in stock price movement because of DRs at the interim level versus the final level is the unique contribution of this paper.

The purpose of this study is to optimize single-bath dyeing process of wool and silk blend, to achieve uniform colour strength for both the fibre after the dyeing process. Due to different absorption characteristics of wool and silk, two-stage dyeing is preferred in the industry. If the fibres are dyed together, the wool fibre becomes darker and the silk fibre becomes lighter after the dyeing process. Solid dyeing effect can be achieved using a single-bath dyeing process.

The dye-acceptor sites in the wool fibre are first blocked using one commercial syntan Mesitol HWS. Then, the syntan-treated wool and silk fibres (80:20 blend ratios) are dyed with Telon Navy AMF dyes in the presence of sodium sulphate. To explore the influence of Syntan, sodium sulphate and the experimental conditions on the dyeing process and to optimize the process, central composite design (CCD) of four factors and three levels was tested.

The design process is optimized using four independent variables: Mesitol HWS concentration, sodium sulphate concentration, pH of dyebath and temperature of dyeing. Three levels of Mesitol HWS concentration (5, 10 and 15 per cent), sodium sulphate concentration (10, 20 and 30 per cent), pH (2.5, 4 and 5.5) and temperature of dyeing (70, 80 and 900°C) were selected for this study. These variables are optimized using response surface regression equation of the ratio of K/S wool and K/S silk. The predicted equation matched well with the experimental data.

This paper proposes the use of one-bath dyeing process of wool and silk blend fabric to reduce the dyeing time, process step and to save water.

Indian and Chinese businesses are slowly making advances in each other’s markets. The purpose of this study was to understand factors that influence the business environment of a country and how does it compare between India and China.

The study uses firm-level survey data from the World Bank’s Enterprise Surveys. The study considered survey data for 2,700 Chinese firms and 9,281 Indian firms. Exploratory factor analysis and structural equation modeling were used to analyze the factors that drive the business environment in both countries and why differences appear.

The data set reveals different factor structures for India and China. Across both the countries, infrastructure support and governance play a major role in shaping the business landscape, though in the case of India, regulatory dynamics play a crucial role. The study concludes that these differences drive the basic difference in business environment across both countries.

The study considers only the formal sector, and informal businesses have been left out because of paucity of data. The dynamics of informal business sector can be considered for future studies.

While making market entry or investment decisions globally, businesses can analyze country-specific environmental factors through this framework. As the study is based on the perceptions of businesses, policy-makers can also focus on these factors to attract businesses to specific countries or regions.

The study is an original research study. The study adds to the existing academic literature and is expected to help policy-makers and senior managers in focusing on specific aspects of business environment when developing policies or taking market entry decisions.

Cloud manufacturing (CMfg) has emerged as a service-oriented paradigm that enables modularization and on-demand servitization of resources in the context of manufacturing. The plethora of studies on CMfg has led the authors to investigate its implementation, as most of the literature is theoretical or simulation-based. Therefore, the purpose of this study is to investigate the reality of the CMfg concept in terms of adoption.

A tri-theoretic model is developed using the technology adoption model, diffusion of innovation and technology-organization-environment for hypotheses development. Data are collected from 218 US manufacturers. The data analysis approaches are partial least squares structural equation modeling, while data visualization is done to further analysis.

The study shows that most of the US manufacturers are reluctant to adopt the CMfg. Further, the statistical findings imply that competitive pressure, top management support, compatibility and trialability play a vital role in its adoption. The success of the CMfg adoption relies on the implementation of the pre-installation stage and the top management decisions.

For practitioners, the study provides insight on how to supervise the CMfg platform implementation to improve the adoption process. For researchers and academicians, the significance of trialability provides a wide range of research topics on developing the CMfg trials and models.

This paper highlights the concerns of manufacturers about the pros and cons of the CMfg adoption, as this topic has not been given due attention in the literature. This will help to align future research directions according to market concerns and mitigating the factors that are hindering its adoption.

The purpose of this paper is to study sensory characteristics, proximate composition, dietary fibre content and storage stability of barley, wheat and chickpea composite flour biscuits.

In total, four types of composite flour biscuits were prepared using barley, wheat, and chickpea flour in various proportions. Wheat biscuits served as a control. Sensory characteristics of biscuits were studied by carrying out organoleptic evaluation using a nine point hedonic scale. Standard methods were used to estimate nutrient composition of biscuits. Biscuits were stored in glass jars to study their storage stability. Changes in sensory characteristics, fat acidity and free fatty acids were studied using standard methods during the storage period.

Results of the study revealed that type‐III biscuits had highest score for their colour, appearance, aroma, taste, texture and overall acceptability and were “liked very much” by the judges. The results showed that crude protein content of all types of composite flour biscuits was significantly higher than that of the control biscuits. A non‐significant difference was observed in the fat content of composite flour biscuits. The mean crude fibre and ash content of composite flour biscuits was significantly (p < 0.05) higher than the control biscuits. The composite flour biscuits had a significantly lower amount of total carbohydrate and energy than the control biscuits. Type‐I biscuits contained higher total, soluble and insoluble dietary fibre as compared to other types of biscuits. The most acceptable type‐III biscuits were stored in glass jars for a period of two months. The shelf‐life study of biscuits revealed that for up to 60 days of storage the overall acceptability of biscuits was in the category of “like moderately”. Chemical analysis of biscuits during storage showed that fat acidity and free fatty acid content of stored biscuits increased with the advancement of the storage period.

This research paper is original.

As a basis for development of new, and rationalisation of existing products, consumer preferences in commercial filter coffees were examined in a quantitative approach with multivariate mapping. Coffees were brewed from 12 ground bean blends and served to 150 consumers as drunk normally – black, whitened and/or sweetened. In a complete block design with two sessions of six coffees, employing randomisation to reduce order effects, hedonic data on a five‐point scale were collected then processed using Q‐mode principal component analysis yielding preference maps for each presentation. Conventional descriptive profiling provided information on blend characters allowing soft modelling to determine sensory attributes driving preference scoring. From univariate data analyses, gender was a significant factor for presentation style: addition of milk increased preference scores for blends in males and sugar reduced preference ratings for females. The outcome was a series of consumer segmentations for different coffee presentations.

Calyx of okra pods is usually cut off and discarded as a waste during processing, whereas the pulp and seeds are being used. This study aims to investigate the nutrient composition and anti-nutritional properties of okra calyx flour.

Calyces from four varieties (Ex-kwadon, Solar, Chalawa and Syria) of okra pods were processed into flour. The proximate composition, mineral content, vitamin content and anti-nutritional composition of the flour samples were analysed by using standard methods.

There were significant differences in moisture content (p = 0.012), crude fat (p = 0.001), crude fibre (p = 0.002), carbohydrate (p = 0.002), sodium (p < 0.001), magnesium (p < 0.001), iron (p < 0.001), zinc (p = 0.006), vitamin A (p < 0.001) and vitamin C (p = 0.001) contents of okra calyx flour. The values of proximate composition ranged 8.1-8.9%, 8.4-9.0%, 14.3-15.3%, 1.4-2.1%, 16.9-18.2% and 47.1-49.4% for moisture content, ash, crude protein, crude fat, crude fibre and carbohydrate, respectively, whereas the values of mineral contents ranged 7.6-8.7 mg/100g, 35.7-41.2 mg/100g, 26.5-28.1 mg/100g, 93.2-95.8 mg/100g, 1.6-1.8 mg/100g and 5.2-5.7 mg/100g for sodium, magnesium, potassium, calcium, iron and zinc, respectively. The values of vitamin contents of okra calyx flour ranged 0.2-0.3 µg/100g, 7.1-8.9 mg/100g and 0.1-0.2 mg/100g for vitamin A, vitamin C and thiamine contents respectively. Also, there were significant differences in the values of phytate (p = 0.023), oxalate (p = 0.011) and saponin (p < 0.001) contents with the values of anti-nutritional properties ranging 1.3-1.5 mg/100g, 2.5-3.3 mg/100g, 7.4-9.7 mg/100g and 2.3-3.6 mg/100g for tannin, phytate, oxalate and saponin contents, respectively.

There are scanty published works/information on proximate composition, mineral content, vitamin content and anti-nutritional composition of okra calyx flour.

The study showed that okra calyx flour could be useful in fortification/supplement of carbohydrate-based foods in food system.

Okra calyx flour comprises high crude fibre, crude protein, ash and vitamin C contents. Also, calcium is the major mineral content of okra calyx flour followed by magnesium and potassium. However, the tannin content reported higher in okra leaf flour, and okra flour is low in okra calyx flour.