Search results

The case is set in Northeast Wisconsin, where the two largest industries are dairy farming and papermaking. Dairy farms have a continual need for bedding material for cows, and Lynn Heemeyer recognized an opportunity for a new bedding material: a waste byproduct of recycled paper. The case includes the progression of Heemeyer’s venture – Alternative Animal Bedding (AAB) – from the idea phase, to initiation and growth, to near collapse, recovery, and renewed growth. By September 2015, AAB was at a turning point as the sales were increasing, and Jess, Lynn’s daughter, had joined the business. Jess’s challenge: how best to grow the business.

Information for the case was gathered via interviews with Jess Heemeyer; she also provided some supporting materials. Jess Heemeyer is a former student of the author and a graduate of the institution that employs the author. Additional information for the case was collected from publicly available sources, as referenced. The identification of the college was not included in the case.

The case is best suited for use in an undergraduate or graduate entrepreneurship course or courses that include entrepreneurship as a topic. The case fits well with the topics of alertness and opportunity identification, and the innovation process. It can also be used to illustrate critical factors for new-venture development and growth. In addition, the benefits and challenges related to family-based entrepreneurial ventures can be included as a learning objective.

This case draws upon and illustrates the concept of alertness (Kirzner, 1973) which was further developed by Tang et al. (2012) when they identified three dimensions of alertness: “scanning and searching for information, connecting previously disparate information, and making evaluations on the existence of profitable business opportunities” (p. 77). Also, the case follows the creativity-based model of opportunity recognition developed by Corbett (2005) that uses experiential learning theory. Finally, students are asked to apply Ansoff’s Growth Matrix (Ansoff, 1957) to identify and evaluate the growth options available to the business owners and managers. As an optional pasture for discussion, a stewardship theory perspective can be applied to examine the family business aspect of this case (see Eddleston and Kellermanns, 2007).

The purpose of this study is to develop a novel general mathematical model to find the optimal product mix of commercial graphite products, which has a complex production process with alternative sub-processes in the graphite mining production process.

The network optimization was adopted to model the complex graphite mining production process through the optimal allocation of raw graphite, byproducts, and saleable products with comparable sub-processes, which has different processing capacities and costs. The model was tested on a selected graphite manufacturing company, and the optimal graphite product mix was determined through the selection of the optimal production process. In addition, sensitivity and scenario analyses were carried out to accommodate uncertainties and to facilitate further managerial decisions.

The selected graphite mining company mines approximately 400 metric tons of raw graphite per month to produce ten types of graphite products. According to the optimum solution obtained, the company should produce only six graphite products to maximize its total profit. In addition, the study demonstrated how to reveal optimum managerial decisions based on optimum solutions.

This study has made a significant contribution to the graphite manufacturing industry by modeling the complex graphite mining production process with a network optimization technique that has yet to be addressed at this level of detail. The sensitivity and scenario analyses support for further managerial decisions.

Second-order system-dynamics engineering (SOSDE) involves constructing and running enterprise manufacturing simulation models with new proposals for operational processes, byproducts, supply chain and/or downstream marketing designs. This paper aims to describe sustainability the principal lessons from enacting SOSDE research for achieving goals in large manufacturing firms.

This study is a case research commentary in the agricultural industry that contributes abductively derives six principal lessons from SOSDE research on introducing sustainability-focused manufacturing and product innovations. Operational processes in large-scale poultry processing plants in an emerging market represent the specific industry and firm domain of this case study. Alternative SOSDE simulation models of decisions, materials flow and outcomes with versus without operational innovations were constructed following one-to-one interviews with experienced farm managers and entrepreneurs.

The principles demonstrate how large farms in a developing nation (i.e. Bangladesh) go about adopting radically innovative manufacturing, supply chain and marketing operations to improve traditional operations. This study confirms and expands on the general observation that SOSDE can help achieve sustainability and environmental, social and governance goals, contribute new value outcomes by converting unused production wastes into valuable byproducts and introduce design efficiencies in production, supply chain and marketing processes. SOSDE complements, while being a revolutionary departure from, “six sigma management programs” that focus on achieving exceptional and near mistake-free manufacturing operations. Both represent distinct philosophies and sets of actions that sometimes can conflict with one another. Embracing both successfully in the same enterprise is a goal that may appear unreachable, seemingly impossible to achieve and yet represents a manufacturing/marketing epitome that is observable in exceptional enterprises.

This paper may generate controversy as well as advance interest in applying SOSDE in introductions of improved manufacturing, supply chain and marketing operations aiming to accomplish radical improvements in sustainability goals.

This commentary describes how using SOSDE and running alternative production simulations with versus without including superior, radically new, process innovations enable the firm to find and eliminate glitches in system changes and reduce the fear associating with breakdowns and financial losses due to inadequate knowledge of operating new industrial procedures and outcomes.

Introductions of superior radically new innovations in industrial manufacturing and marketing via SOSDE frequently include manufacturing firms embracing new environment sustainability objectives and additional marketable byproducts from the firm's main productions lines. This commentary offers details on how this process is enacted in poultry manufacturing in an economically emerging nation.

Running simulations in SOSDE research offers a low-cost, fast and in-depth method to test “what-if” impacts of enhanced and radical innovations into product/service manufacturing operations – benefits supporting the recommendation to apply systems dynamics in business and industrial marketing.

This paper aims to investigate the influence of nonuniform gas speed across the build area on the melt pool depth during laser powder bed fusion. This study focuses on whether a nonuniform gas speed is a source of process variation within an individual build.

Parts with many single-track laser scans were printed and characterized in different locations across the build area coupled with corresponding gas speed profile measurements. Cross-sectional melt pool depth, width and area are compared against build location/gas speed profiles, scan direction and laser scan speed.

This study shows that the melt pool depth of single-track laser scans produced on parts are highly variable. Despite this, trends were found showing a reduction in melt pool depth for slow laser scan speeds on the build platform near the inlet nozzle and when the laser scans are parallel to the gas flow direction.

A unique data set of single-track laser scan cross-sectional melt pool measurements and gas speed measurements was generated to assess process variation associated with nonuniform gas speed. Additionally, a novel sample design was used to increase the number of single-track tests per part, which is widely applicable to studying process variation across the build area.

This case used the interplay between individuals, firms and markets to examine how a company sustained success from its value adding activities. The theory of value creation was demonstrated by the leader’s ability to configure the firm’s tangible and intangible resources to create opportunities beyond the commodity markets. Also, what matters were not just the technical processes of developing value-added products, but how the company’s culture served as a link to new products, new markets and new ventures.

The case was based on primary and secondary sources. The primary sources face-to-face semi-structured recorded interviews with the protagonist at the company’s headquarters. The secondary data were from the company’s website, and public information about Johnsonville Sausage LLC. Supplemental information was gathered from market research firms. No names have been disguised. The case has been classroom tested with undergraduate students in a capstone course. The author has no personal relationship with the company.

Kevin Ladwig, Vice President, was concerned by the expanded production of ethanol, an attractive supplement to gasoline in the USA. Because most ethanol is processed from corn, expanded production of ethanol heightened the demand for corn. Since corn is a staple feed ingredient for animals, heightened demand for corn increased the cost of Johnsonville’s raw material – hogs. In fact, the cost of feed was Johnsonville’s major economic input in animal production from farrow to finish, accounting for up to 70 percent of the total production cost of hogs. The case introduces the nexus of food and energy markets and how the “Johnsonville Way” was used to convert an old idea into an innovation.

This case is appropriate for undergraduate and graduate courses in business and agribusiness management. It would also be appropriate for courses using concepts in innovation and organizational culture.

The purpose of this paper is to highlight the sustainability benefits of using demolition and industrial wastes as a replacement for aggregates and cement in traditional concrete mixes.

Crushed concrete from demolition sites served as a replacement for fine and coarse aggregate in some of the mixes at various ratios. In addition, ground granulated blast furnace slag, metakaolin, silica fume, and fly ash each served as a cement replacement for cement content in the mixes tested in this research at various rates. Compression strength tests, permeability, and thermal expansion tests were performed on various mixes to compare their performance to that of traditional mixes with natural aggregate, and with no cement replacement.

The compressive strength results indicated the suitability of using such demolition wastes as replacements in producing green concrete (GC) without hindering its mechanical characteristics significantly. In addition, the results indicated an enhancement in the mechanical characteristics of GC when replacing cement with pozzolanic industrial wastes and byproducts.

The research assesses the utilization of sustainable GC using recycled waste aggregate and byproducts.

In the backdrop of an increase in market-based banking activities, this paper aims to study operational efficiency of Indian banking sector during 2009–2010 through 2017–2018 considering Capital Gain and Gain from Forex Market (as desirable outputs) and Slippage (as undesirable byproducts) simultaneously, along with Advances – a desirable output considered in the traditional banking performance assessment literature. This enables to have an assessment of performance (as captured by the measured efficiency scores) of Indian Banks following an alternative viewpoint about the banking activities. The authors also explain such efficiency scores in terms of bank-specific factors, banking industry competition scenario and interest rate channel.

Using data envelopment analysis (DEA) method, the authors estimate six alternatives but interlinked operational efficiency scores (TES) of the Indian domestic commercial banks. In the second stage, they explain such TES in terms of bank-specific factors, banking industry competition scenario and interest rate channel.

The authors observe that the private sector banks as a group outperform those under public ownership. Moreover, although the private sector banks could maintain somewhat consistency in their operational efficiency performance over the sample period, public sector banks clearly show a declining tendency. The second stage econometric estimation results show that the priority sector lending has a negative effect on efficiency. Interestingly, the authors get varying results for the relationship between maturity and efficiency score depending on banks’ strategies on stressed assets management. Furthermore, the analyses result that banks are not so efficient in managing relatively larger-volume loans. It is also observed that banks’ efficiency positively depends on the Credit-to-Deposit (CD) ratio. It is found that the overall operational efficiency of the banks to manage their credit risk portfolio improves with a reduction in the lending rate (LR). However, the interaction of lending activities and capital market shows that with the increase in LR, corporate borrowers may switch to capital market to explore for desired funds, which may induce the banking sector to investment in capital markets and create a positive market sentiment.

Literature, although scanty, is there dealing stressed assets of a bank as some undesirable byproducts of its operational and business activities. However, such literature mostly done within the traditional framework of banking business activities and modern market-based business activities are almost absent in the literature. The authors have done it in the present study.

The purpose of this paper is to provide a critical and in‐depth review of the present status and recent developments in synthetic methodologies, reaction engineering, process design and quality control aspects associated with the manufacture of mono and multifunctional acrylate monomers.

This paper reviews commercially important UV cure mono and multifunctional acrylate monomers. It covers their synthesis, catalyst, and appropriate solvents for azeotropic removal of byproducts. The detail discussion on catalysis, basis of design of reactors and commercial plant and the process engineering associated with the manufacture has been supported through citation of synthesis of various acrylate monomers. The methodologies adopted for determination of physical, chemical and compositional characterisation of acrylate monomers have been presented. In addition, the guidelines regarding the bulk storage and commercial handling of acrylates have been reviewed.

The reaction engineering of esterification reaction between acrylic acid and polyol has been worked out to provide the basis for selection of reactors. The reaction has been modeled as a series – parallel complex reaction for providing explanation for generation of various byproducts/adducts and multiple esters.

The detailed discussion on formation, characterisation and treatment of Michael adducts and purification of acrylate monomers will be relevant for new researchers for further development. A review of guidelines on selection of homogenous and heterogeneous catalysts for synthesis of acrylate monomers has been presented.

Since the related literature on acrylate monomers is scarce, scattered and proprietary, the consolidated coverage in one paper will be useful.

This paper describes a copper electroplating enabling technology for filling microvias. Driven by the need for faster, smaller and higher performance communication and electronic devices, sequential build up (SBU) technology has been adopted as a viable multilayer printed circuit manufacturing technology. Increased wiring density, reduced line widths, smaller through‐holes and microvias are all attributes of these high density interconnect (HDI) packages. Filling the microvias with conductive material allows the use of stacked vias and via in pad designs. Other potential design attributes include thermal management enhancement and benefits for high frequency circuitry. Electrodeposited copper can be utilized for filling microvias and provides potential advantages over alternative via plugging techniques. The features, development, scale up and results of direct current (DC) and periodic pulse reverse (PPR) acid copper via filling processes, including chemistry and equipment, are described.

Research at agricultural universities often generates food crops that are edible by‐products of the research process. The purpose of this paper is to explore the factors that affect decision‐making around the disposal of these crops. Understanding decision‐making suggests how universities might include food crop production into campus sustainability assessments.

A qualitative, ethnographic approach is used as, little is known about decision‐making on edible crops at universities; decision‐making was expected to be highly location‐specific and complex. In‐depth interviews with operations staff and participant observation were used.

Decision‐making is decentralized and often reflects the values of individual staff regarding the value of the food. Staff use an informal cost‐benefit analysis that reflects the economic, social, environmental trade‐offs of their perceived disposal options. Many decisions reflect a sustainability ethic regarding the higher use‐value of food crops while others reflect instrumental concerns about disposing of unwanted waste products. The complexity of decision‐making suggests it would be difficult to develop a quantitative instrument that would provide meaningful data for a campus sustainability assessment.

Food production provides another opportunity to improve campus sustainability efforts. Also, qualitative work may be useful to understanding such systems.

The paper highlights a part of the campus food systems that is rarely studied: the campus as a food producer. It also provides an in‐depth illustration of how qualitative methods may be used to inform the design of campus assessments.