Search results

This article has been withdrawn as it was published elsewhere and accidentally duplicated. The original article can be seen here: 10.1108/01443579810192763. When citing the article, please cite: Sunil Babbar, Sameer Prasad, (1998), “International purchasing, inventory management and logistics research: An assessment and agenda”, International Journal of Operations & Production Management, Vol. 18 Iss: 1, pp. 6 - 36.

The purpose of this paper is to use finite element method for optimizing the membrane type double cavity vacuum sealed structure for the best achievable sensitivity in a piezoresistive absolute pressure sensor and its validation using a standard complementary metal oxide semiconductor (CMOS) process.

A double cavity vacuum sealed piezoresistive absolute pressure sensor has been simulated and optimized for its performance and an analytical model describing the behaviour of the sensor has been described. The 1×1 mm sensor chip has two membrane type 100×30×1.7 μm diaphragms consisting of composite layers of plasma enhanced chemical vapour deposition (PECVD) of silicon nitride (Si₃N₄) and silicon dioxide (SiO₂) each hanging over 21 μm deep rectangular cavity. Potassium hydroxide (KOH) based anisotropic etching of single crystal silicon using front side lateral etching technology is used for the fabrication of the sensor. The electrical readout circuitry uses 318 Ω boron diffused low pressure vapour chemical vapour deposition (LPCVD) of polysilicon resistors arranged in the Wheatstone half bridge configuration. The sensing structure is simulated and optimized using COMSOL Multiphysics.

Front-side lateral etching technology has been successfully used for the fabrication of double cavity absolute pressure sensor. A good agreement with the fabricated device for the chosen location of the piezoresistors through simulation has been predicted. The measured pressure sensitivity of two tested pressure sensors is 12.63 and 12.46 mV/MPa, and simulated pressure sensitivity is found to be 12.9 mV/MPa for pressure range of 0 to 0.5 MPa. The location of the piezoresistor has also been optimized using the simulation tools for enhancing the sensor sensitivity to 62.14 mV/MPa. The pressure sensitivity is further enhanced to 92 mV/MPa by increasing the width of the diaphragm to 35 μm.

The simulated and measured pressure sensitivities of the double cavity pressure sensor are in close agreement. Sevenfold enhancement in the pressure sensitivity of the optimized sensing structure has been observed. The proposed front-side lateral etching technology can be adopted for making membrane type diaphragms hanging over vacuum sealed micro-cavities for high sensitivity pressure sensing applications.

Soil is an essential component of road construction and is used in the form of subgrade materials. It ensures the stability and durability of the road under adverse conditions; being one of the important parameters, poor judgment of the engineering properties of soil can lead to pavement failure. Geopathic stress (GS) is a subtle energy in the form of harmful electromagnetic radiation. This study aims to investigate the effect of GS on soil and concrete.

A total of 23 soil samples from stress zones and nonstress zones were tested for different engineering properties like water content, liquid limit, plastic limit, specific gravity and California bearing ratio. Two concrete panels were placed on GS zones, and their quality was monitored through nondestructive testing for a period of one year.

The result shows that the engineering properties of soil and pavement thickness are increasing in stress zones as compared with nonstress zones. For concrete panels, as time passes, the quality of the concrete gets reduced, which hints toward the detrimental effect of GS.

This research is a systematic, scientific, reliable study which evaluated subgrade characteristics thus determining the detrimental impact of the GS on soil and pavement thickness. On a concluding note, this study provides a detailed insight into the performance of the road segment when subjected to GS. Through this investigation, it is recommended that GS should be considered in the design of roads.

The Million Farmers School (MFS) program—also known as Kisan Pathshala was launched to impart training to the farmers by the government of the state of Uttar Pradesh (India) in December 2017. This study estimates the impact of training on agricultural knowledge of the farmers.

The study is based on household survey conducted in Uttar Pradesh (UP), India, during March–May 2019. The authors employed matching methods, the two-stage least square (2SLS)-residual and endogenous switching regression approaches to control for selection bias and endogeneity.

The results suggest that knowledge outcomes are significantly better among participants vis-à-vis non-participants. The results are robust to different model specifications. Further, the benefits are observed across different regions and social groups.

The MFS program can go a long way in enhancing agricultural know-how and the farmers' economic well-being, bringing a transformative change in the agricultural landscape of UP.

This study is based on a field survey data and analyzes various aspects of the program's impact, design and implementation, and offers implementation advice for greater efficacy in future.

The results of the 1999 and 2001 general election seem to suggest that the Indo‐Fijian community in Fiji voted on the issues of poverty, unemployment and lack of opportunities amongst the Indo‐Fijian community. The Indo‐Fijian community, since the military coups of 1987 and more recently in May 2000, has increasingly felt marginalised by the Indigenous Fijian led governments. The expiry of land leases and the lack of opportunities for many of them in both the rural and urban areas are a source of increasing concern. Indian politicians are also raising these concerns in their struggle for political and economic rights for the community. Based on a national survey data this article examines some of these concerns. It analyses the extent of concern about poverty, unemployment and lack of basic facilities such as water, housing and electricity among the community and draws conclusion for the future of Indo‐Fijian political and economic rights.

This research examines the literature on quality management in developing countries and explores the influence of important international and organizational variables on quality in developing countries.

By drawing from the literature and gaining input from industry panels, it formulates specific propositions depicting the influence of international (economic, political/legal, cultural/social) and organizational (goals/priorities, commitment/control, centralization/decentralization, networking) factors on quality.

A number of gaps are identified in the literature on quality management in developing countries along with significant challenges including differing perceptions of quality, the legacy of colonization and protectionist policies, and tight governmental controls.

The framework of this research develops general relationships between quality and international and organizational variables. Based upon the propositions developed within this framework, future research can formulate and empirically test more specific hypotheses. Further, international and organizational variables are looked upon independently. Future research can explore possible interaction effects of these sets of variables on quality outcomes in developing countries.

Based upon this research, mangers of multinational corporations (MNCs) can better understand the role and affects of international and organizational factors on quality of goods and services in developing countries. Such understanding is an important requisite for the effective management of operations in developing countries.

This research identifies for MNCs the unique challenges international and organizational variables pose for quality management and operations in developing countries. The propositions developed help synthesize the literature on quality management in developing countries and provide a framework for future empirical research needed to support theory development in this area.

The main purpose of this study is to identify the determinants that inhibit the adoption or usage of digital payment systems (DPSs) in India.

This study used a qualitative technique, including in-depth semi-structured interviews. Data analysis was conducted using thematic analysis, incorporating both deductive categorisation and inductive coding to identify factors responsible for the non-adoption or discontinuation of DPS use.

The findings are in the form of themes and sub-themes that were generated from the data analysis: digital divide (DD), which includes the digital access divide, digital capability divide and digital innovativeness divide; socio-demographic divide (SD), which includes education, geographical location, gender, age and income; psychological barriers, which include a lack of perceived ease of use, vulnerability to risks, technophobia and a lack of trust; and other barriers, which include a lack of awareness, a cash-dominated society and a lack of interoperability.

The factors identified in this research can be further validated and tested in future studies using quantitative data. This will enable stakeholders to better comprehend the impacts of these factors on DPS adoption or usage.

The study’s practical implications are specifically relevant to the Union Territory (UT) administration of Ladakh, as there is a DD and an SD among different sections of the population of the UT of Ladakh. UT administrations must prioritise efforts to eliminate these divides. The implications for banks and DPS providers are that they should conduct financial literacy training about DPSs in remote rural areas and invest in developing user-friendly and simplified DPS user interfaces to improve relationships with DPS users and their long-term retention.

The findings of this study reveal the three levels of the DD that determine DPS adoption or usage, which have not been discussed together in the literature in the DPS context and that must be addressed to expand DPS adoption, thus providing a more holistic view of the DD in the context of DPS.

In an intensely competitive global marketplace reshaped by the opening of new markets, the study of international operations strategy (IOS) is becoming increasingly important. This paper undertakes a comprehensive review of the IOS literature from 31 well‐regarded operations management and broad management journals over a 12‐year period from 1986 through 1997. It presents the findings and issues addressed in the research. It explores the trend in IOS publications and presents a breakdown of this literature based on its country‐ and region‐specific focus. It examines the mix of authorship of IOS research, the methodologies employed, and discusses future directions for IOS research.

Assesses institutional and individual research productivity in the area of international operations management (IOM) by reviewing publications in 21 leading operations management (OM) journals over the 12‐year period from 1986 through 1997. Also assesses the IOM research output of the journals and the relative contributions of academicians and practitioners to IOM research appearing in these journals. Among the journals examined for the 12‐year period of this study, based on annual output and quality of published IOM research, Production and Operations Management, International Journal of Operations & Production Management, and European Journal of Operational Research served as the leading outlets for IOM research. The 21 journals published a total of 550 IOM articles over the 12‐year period with academicians authoring approximately 86 percent and practitioners 14 percent of this IOM research. The study provides insights on the IOM research productivity and quality of institutions and individuals and offers suggestions for furthering the cause of IOM research.

This study seeks to determine the effect of sustainable practices on willingness to pay a price premium (WTPP) in the hotels and resorts in the Fiji islands. It will also assess how implementing these sustainable practices influences guest re-visit intentions.

A qualitative research technique was used which included in-depth interview sessions with ten Fijian resort managers and 15 hotel guests. The website of Etic Hotels was also used to gather data about the green practices provided by resorts and hotels. A non-random purposive sampling method was used to select respondents.

Results indicate that implementing sustainability practices has significantly and positively affected guest intentions to return to Fijian Hotels and resorts. The results also demonstrated that customers are willing to pay a higher price for the use of environmentally friendly practices in Fiji's hotels and resorts.

Though a few studies have been conducted examining the linkages between sustainable practices and the Fijian hotel industry, this article is a novel exploration of the use of sustainable practices in hotels and resorts and how they influence guest re-visit intentions and WTPP in Fiji Islands.