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Exchanges are designed to be default tolerant. The exchange functions as a counter-party in all transactions. A system of margining ensures that a transaction is always consummated even if either the buyer or the seller fails to honour his/her commitment. Investigations on the payment crisis at the National Spot Exchange Limited (NSEL) in 2013 involving Rs. 5,600 crore revealed that the reasons for the crisis lay in the hubris of the promoters, connivance and collusion of the independent and institutional directors on the board of NSEL, benevolence of the government and ambivalence of the regulator. The failure raises serious concerns about governance at all levels in the country. Fundamental principles of governance were given a short shrift.

In today’s digital world, real-time health monitoring is becoming a most important challenge in the field of medical research. Body signals such as electrocardiogram (ECG), electromyogram and electroencephalogram (EEG) are produced in human body. This continuous monitoring generates huge count of data and thus an efficient method is required to shrink the size of the obtained large data. Compressed sensing (CS) is one of the techniques used to compress the data size. This technique is most used in certain applications, where the size of data is huge or the data acquisition process is too expensive to gather data from vast count of samples at Nyquist rate. This paper aims to propose Lion Mutated Crow search Algorithm (LM-CSA), to improve the performance of the LMCSA model.

A new CS algorithm is exploited in this paper, where the compression process undergoes three stages: designing of stable measurement matrix, signal compression and signal reconstruction. Here, the compression process falls under certain working principle, and is as follows: signal transformation, computation of Θ and normalization. As the main contribution, the theta value evaluation is proceeded by a new “Enhanced bi-orthogonal wavelet filter.” The enhancement is given under the scaling coefficients, where they are optimally tuned for processing the compression. However, the way of tuning seems to be the great crisis, and hence this work seeks the strategy of meta-heuristic algorithms. Moreover, a new hybrid algorithm is introduced that solves the above mentioned optimization inconsistency. The proposed algorithm is named as “Lion Mutated Crow search Algorithm (LM-CSA),” which is the hybridization of crow search algorithm (CSA) and lion algorithm (LA) to enhance the performance of the LM-CSA model.

Finally, the proposed LM-CSA model is compared over the traditional models in terms of certain error measures such as mean error percentage (MEP), symmetric mean absolute percentage error (SMAPE), mean absolute scaled error, mean absolute error (MAE), root mean square error, L1-norm and L2-normand infinity-norm. For ECG analysis, under bior 3.1, LM-CSA is 56.6, 62.5 and 81.5% better than bi-orthogonal wavelet in terms of MEP, SMAPE and MAE, respectively. Under bior 3.7 for ECG analysis, LM-CSA is 0.15% better than genetic algorithm (GA), 0.10% superior to particle search optimization (PSO), 0.22% superior to firefly (FF), 0.22% superior to CSA and 0.14% superior to LA, respectively, in terms of L1-norm. Further, for EEG analysis, LM-CSA is 86.9 and 91.2% better than the traditional bi-orthogonal wavelet under bior 3.1. Under bior 3.3, LM-CSA is 91.7 and 73.12% better than the bi-orthogonal wavelet in terms of MAE and MEP, respectively. Under bior 3.5 for EEG, L1-norm of LM-CSA is 0.64% superior to GA, 0.43% superior to PSO, 0.62% superior to FF, 0.84% superior to CSA and 0.60% better than LA, respectively.

This paper presents a novel CS framework using LM-CSA algorithm for EEG and ECG signal compression. To the best of the authors’ knowledge, this is the first work to use LM-CSA with enhanced bi-orthogonal wavelet filter for enhancing the CS capability as well reducing the errors.

This study aims to characterize the behavior of blended concrete, including metakaolin (MK) and quarry dust (QD), as supplementary cementing materials. The study focuses on evaluating the effects of these materials on the fresh and hardened properties of concrete.

MK, a pozzolanic material, and QD, a fine aggregate by-product, are potentially sustainable alternatives for enhancing concrete performance and reducing environmental impact. The addition of different percentages of MK enhances the pozzolanic reaction, resulting in improved strength development. Furthermore, the optimum dosage of MK, mixed with QD, and mechanical properties like compressive, flexural and split tensile strength of concrete were evaluated to investigate the synergetic effect of MK and quarry dust for M20-grade concrete.

The results reveal the influence of metakaolin and QD on the overall performance of blended concrete. Cost analysis showed that the optimum mix can reduce the 7%–8% overall cost of the materials for M20-grade concrete. Energy analysis showed that the optimum mix can reduce 7%–8% energy consumption.

The effective utilization is determined with the help of the analytical hierarchy process method to find an optimal solution among the selected criteria. According to the AHP analysis, the optimum content of MK and quarry dust is 12% and 16%, respectively, performing best among all other trial mixes.

After studying this case, the students/participants would be able to: discuss important personality traits of an entrepreneur; understand specific challenges faced by a venture as it moves toward higher growth stage; discuss the importance of strategic planning and managerial style as the ventures move from establishment stage to growth stage.

The case is about MotivPrints, a two years old venture, offering custom designing and commercial printing to businesses in Gujarat, India. MotivPrints was established by Himanshu Dhadnekar in 2016 and had 85 SME clients and 35 vendors by 2019. Himanshu, a young entrepreneur had been involved in entrepreneurial activities since his school days and was also involved in a couple of business ventures during his MBA. However, he had been flip-flopping as an employee and entrepreneur, as then. At MotivPrints, he handled key responsibilities of developing client networks, generating business, marketing and managing relationship with vendors. With limited support of a team of freelancer associates, no permanent staff for assistance and lack of funds made it imperative for Himanshu to plan for scaling up his venture for survival and growth. Could he envision MotivPrints as a larger entity? If yes, what changes, mandated by growth, were needed to be made in both – the entrepreneur and the organization?

The case can be discussed in the class of entrepreneurship at the master’s level. It can also be used in the entrepreneurship specialization course in the second year of post-graduation. The case can be also be used for young entrepreneurs in an executive development program focusing on new ventures.

Teaching notes are available for educators only.

CSS: 3 Entrepreneurship.

The learning outcomes include to identify and discuss important personality characteristics of an entrepreneur, to explore the business planning pitfalls that torment many new ventures and to understand key concepts of business model thinking.

The case is about Fetakart, a one-year old venture, which offered custom designed and printed t-shirts in Gujarat, India. The venture was launched by Himanshu Dhadnekar in 2018. Himanshu was a young first-generation entrepreneur who displayed entrepreneurial characteristics since his school days. Later, he was involved with a few failed startups, worked as an employee in different companies and curated new ventures. Fetakart was born out of another venture, MotivPrints, which sold a large variety of custom designed and high-quality printed products such as visiting cards, office essentials, apparels, packaging and marketing material. At MotivPrints, Himanshu discovered the market for customized t-shirts in India but with very little knowledge of the business model or capabilities of leading players such as Bewakoof.com. The venture started struggling and faced several problems including high cost demands by manufacturers and lack of funding. Where did Fetakart go wrong? Was Fetakart born out of impulse? Did Himanshu have a viable business model for Fetakart?

The case can be discussed in the class of entrepreneurship at master’s level. It can also be used in entrepreneurship specialization course and strategic management elective(s) in the second year of post-graduation. The case can be particularly useful for young entrepreneurs associated as incubatees with a business incubator and for an executive development program related to new ventures.

Teaching Notes are available for educators only.

CSS 3: Entrepreneurship.

The purpose of this work was to develop a new trispiperazido phosphate-based reactive diluent (diphosphate-piperazine hydroxyl acrylate [DPHA]) and used as a flame retardant with an epoxy acrylate (EA) in ultraviolet (UV)-curable wood coating.

The concentration of reactive diluent was varied from 0% to 20% in the UV-curable formulation with constant photoinitiator concentration. The effect of DPHA concentration on film properties was studied by differential scanning calorimetry and thermogravimetric analysis, gel content, water absorption and limiting oxygen index.

The results showed that the viscosity of the prepared formulation decreased by increasing reactive diluent (DPHA) concentration which leads to improving the coating efficiency. A high concentration of reactive diluent (DPHA) of the cured films shows good resistance against stain, mechanical and thermal properties, which results in an increased glass transition temperature (T_g) and cross-linking density of the films.

The new trispiperazido phosphate-based reactive diluent was used in wood coating formulation, which resulted in excellent flame-retardant properties with higher cross-linked density with good stain resistance. This material can provide a wide range of application for coating industries to produce a glossy finish.

The learning outcomes are as follows: to strike a balance between business growth and keeping the core Gandhian philosophies intact; to evaluate the relevance of Gandhian philosophy in the age of the digital era, especially for the grassroots enterprises; and to identify the leadership characteristics demonstrated by Pabiben from the lens of servant-leadership theory.

The case describes the journey of a grassroots-based rural women entrepreneur, Pabibben, who had created an artisan's enterprise and rural business model based on Gandhian philosophies. The case focuses on whether Gandhian philosophies are still relevant in today's time for business growth. The case appeals to the academic fraternity, budding entrepreneurs, social sector start-ups and practitioners who believe in the inclusive and holistic growth of an individual, community, society and the nation.

The case is about the dilemma of how to grow a business ethically and balance economic and social gain. Pabiben used Gandhian philosophies as a set of values to make decisions and set policies for her business. Pabiben wanted to grow her business and expand her e-commerce portal “Pabiben.com” for other artisans to display, promote and sell their products to the global communities. She had to decide on the following:

1. Should she sell other artisans' products under “Pabiben.com”?

2. Should she allow other artisans to create their own identity on the portal and help the artisans' community grow?

3. Are Gandhian philosophies still relevant in today’s time for business growth?

The case can be used for both undergraduate and postgraduate students to teach entrepreneurship courses, especially social entrepreneurship and rural entrepreneurship. The case can also be used on the subject of corporate social responsibility, business ethics and women leadership. The case explains the concept of values/philosophies-based entrepreneurship and innovations.

Teaching notes are available for educators only.

CSS 3: Entrepreneurship

The purpose of this paper is to summarize the scientific information of various qualities of bael fruit juice used in traditional system of medicine for variety of purposes. Utilization of bael fruit juice in day-to-day life has great nutritional, therapeutic, and commercial importance. Bael fruit contains nutrients like vitamins (riboflavin), minerals, trace elements, energy and phytochemicals, including flavonoids, polyphenols and antioxidants, that have been shown to have varied health benefits. In past few decades, bael has been extensively studied for its medicinal properties by advanced scientific techniques, and a variety of bioactive compounds like marmelosin, tannins, alkaloids, coumarins, steroids, rutacine, y-sitosterol, psoralin, xanthotoxin, scopolotein, aegelemine, aegeline, marmeline, fragrine, dictamine, cinnamide and different derivatives of cinnamide have been isolated from its fruit juice.

The medicinal value of bael fruit is very high when the harvests just begin to ripen. As a result, it has a high demand as alternative medicine for curing the diseases like diabetes, high cholesterol, peptic ulcer, inflammation, diarrhea and dysentery, constipation, respiratory infection. Furthermore, the bael fruit juice has anticancer, cardio protective, antibacterial, antifungal, radio protective, antipyretic, analgesic, antioxidant, antiviral, anthelmintic and anti-inflammatory, hepatoprotective, wound healing properties. The ripe fruit juice is aromatic, has cooling and laxative effects, and arrests secretion or bleeding.

The unripe or half-ripe fruit juice is good for digestion, useful in preventing or curing scurvy, and it strengthens the stomach action. It helps in the healing of ulcerated intestinal surfaces and has appreciable activity against intestinal pathogenic organisms. The present review summarizes the scientific information of various qualities of bael fruit juice used in traditional system of medicine for a variety of purposes.

It is quite evident from this review that bael is an important medicinal herb and extensively used in Ayurveda, Siddha and other medicinal systems. Bael fruit juice is an excellent source of water and natural sugar and is important principally for containing vitamins, minerals, phytochemicals, antioxidants, pigments, energy, organic acids, dietary fiber and other food components, which are the key factors in the medicinal value of this plant. Moreover, mechanisms of action of a few bioactive compounds have been identified so far.

This study aims to investigate the interfacial microstructures of ultrasonic-assisted solder joints at different soldering times.

Solder joints with different microstructures are obtained by ultrasonic-assisted soldering. To analyze the effect of ultrasounds on Cu₆Sn₅ growth during the solid–liquid reaction stage, the interconnection heights of solder joints are increased from 30 to 50 μm.

Scallop-like Cu₆Sn₅ nucleate and grow along the Cu₆Sn₅/Cu₃Sn interface under the traditional soldering process. By comparison, some Cu₆Sn₅ are formed at Cu₆Sn₅/Cu₃Sn interface and some Cu₆Sn₅ are randomly distributed in Sn when ultrasonic-assisted soldering process is used. The reason for the formation of non-interfacial Cu₆Sn₅ has to do with the shock waves and micro-jets produced by ultrasonic treatment, which leads to separation of some Cu₆Sn₅ from the interfacial Cu₆Sn₅ to form non-interfacial Cu₆Sn₅. The local high pressure generated by the ultrasounds promotes the heterogeneous nucleation and growth of Cu₆Sn₅. Also, some branch-like Cu₃Sn formed at Cu₆Sn₅/Cu₃Sn interface render the interfacial Cu₃Sn in ultrasonic-assisted solder joints present a different morphology from the wave-like or planar-like Cu₃Sn in conventional soldering joints. Meanwhile, some non-interfacial Cu₃Sn are present in non-interfacial Cu₆Sn₅ due to reaction of Cu atoms in liquid Sn with non-interfacial Cu₆Sn₅ to form non-interfacial Cu₃Sn. Overall, full Cu₃Sn solder joints are obtained at ultrasonic times of 60 s.

The obtained microstructure evolutions of ultrasonic-assisted solder joints in this paper are different from those reported in previous studies. Based on these differences, the effects of ultrasounds on the formation of non-interfacial IMCs and growth of interfacial IMCs are systematically analyzed by comparing with the traditional soldering process.