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Article
Publication date: 2 January 2009

Guang Jin and A.J. Englande

The purpose of this study is to quantitatively evaluate five erosion control measures at a residential development area in Louisiana, USA in order to provide Best Management…

1197

Abstract

Purpose

The purpose of this study is to quantitatively evaluate five erosion control measures at a residential development area in Louisiana, USA in order to provide Best Management Practices (BMPs) that have been tested in the field with demonstrated cost‐effectiveness.

Design/methodology/approach

A total of six testing sites at a nine‐degree slope were used in parallel to study five erosion control measures with one being the control site (no protection). Soil erosion rate was quantified using the erosion bridge method. Soil underlying the study area was analyzed for surface runoff potential. Precipitation was monitored using a Sigma rain gauge. Analysis of variance (ANOVA) and Student Newman‐Keuls Post‐Hoc ANOVA analysis were conducted to evaluate statistical significance of erosion control effectiveness. Ratio of soil erosion rate reduction to cost of each control measure is also analyzed.

Findings

All erosion control measures studied were very effective in reducing soil erosion for soils with high runoff potential, ranging from 75 percent to about 100 percent reduction in soil erosion rate. The most effective soil erosion protection was observed by Geojute fabric and Curlex blanket with greater than 90 percent reduction in soil erosion rate. However, after factoring‐in cost, straw bedding was observed to be five times as cost‐effective as Geojute fabric and Curlex blanket. The most cost‐effective measure is temporary seeding using perennial rye grass. For each dollar spent, about 12 tons of soil per acre per year will be prevented from eroding.

Originality/value

The study evaluated erosion control measures in the field with quantitative cost‐effectiveness analyzed. Besides enforcement, providing practical and cost‐effectiveness control measures that have been tested in the field is critical for actual implementation of erosion control measures.

Details

Management of Environmental Quality: An International Journal, vol. 20 no. 1
Type: Research Article
ISSN: 1477-7835

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Article
Publication date: 14 June 2011

Chih‐Yang Hu, Guang Jin and A.J. Englande

The purpose of this paper is to evaluate the water quality of the wetland that received treated municipal wastewater for 40 years and its application for nutrients removal and…

653

Abstract

Purpose

The purpose of this paper is to evaluate the water quality of the wetland that received treated municipal wastewater for 40 years and its application for nutrients removal and wetland restoration.

Design/methodology/approach

To assess the water quality impact of the study, wetland sampling sites were selected to represent the receiving wetland, wetland background, effluent discharge point, and the adjacent canals. Water samples were taken in different seasons of the year and analyzed for water quality parameters including pH, temperature, dissolved oxygen, salinity, chloride, total organic carbon, ammonia, nitrite, nitrate, TKN and phosphorus. USEPA‐approved standard methods were followed and Quality Assurance/Quality Control procedures were compiled. Analysis of variance and Student Newman‐Keuls Post‐Hoc analysis were performed on the sampling results to evaluate the water quality differences among the sampling sites.

Findings

No water quality degradation was detected in the wetland study after receiving treated municipal wastewater for 40 years. Dissolved oxygen, pH and temperature were not different from the background level. Total organic carbon and nutrients levels reduced significantly in the receiving wetland, indicating effective waste assimilation. Salinity in the immediate receiving area was reduced substantially, which offers potential application to buffer saltwater intrusion and wetland restoration.

Practical implications

The practice in this study offers potential implications in wastewater nutrients removal, wetland restoration, minimizing saltwater intrusion in coastal wetland.

Originality/value

This study investigated the water quality impact in wetland after receiving municipal effluent for 40 years. Results provide evidence of effective assimilation in wetlands and offer potential applications in coastal wetland restoration.

Details

Management of Environmental Quality: An International Journal, vol. 22 no. 4
Type: Research Article
ISSN: 1477-7835

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Article
Publication date: 1 August 2003

Guang Jin, Tim Kelley, Nara Vargas and Mike Callahan

Pilot‐scale surface‐flow, subsurface‐flow and floating aquatic plant constructed wetland system designs were installed and evaluated to determine the effectiveness of constructed…

899

Abstract

Pilot‐scale surface‐flow, subsurface‐flow and floating aquatic plant constructed wetland system designs were installed and evaluated to determine the effectiveness of constructed wetlands to immobilize and remove metals such as cadmium, zinc, copper, chromium, lead and nickel in tertiary effluent wastewater in a Midwestern US climate (central Illinois). Following wetland treatment, average concentrations of copper decreased from 56.6μg/l in influent to 7.9μg/l (86.0 per cent reduction) in the FAP system, 9.2μg/l (83.7 per cent reduction) in the SSF system and 11.0μg/l (80.6 per cent reduction) in the SF system, respectively. Results of ANOVA indicated that differences in concentration reduction of copper among the three wetlands were not statistically significant. The average concentration of chromium decreased from 1.31μg/l in influent to 0.4μg/l (69.5 per cent reduction) in all system designs. Copper concentrations were reduced consistently with increasing wetland retention time, with most of concentration reduction having occurred in the first wetland cell for all system designs.

Details

Management of Environmental Quality: An International Journal, vol. 14 no. 3
Type: Research Article
ISSN: 1477-7835

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Article
Publication date: 1 July 2006

A.J. Englande and Guang Jin

The purpose of this paper covers a perspective as related to sustainable development of natural resources with a focus on application of biotechnology in waste management.

3583

Abstract

Purpose

The purpose of this paper covers a perspective as related to sustainable development of natural resources with a focus on application of biotechnology in waste management.

Design/methodology/approach

The paper presents an overall view of industrial waste management practices as pertaining to substantiality of resources with emphasis on biodegradation of industrial pollutants. Methodologies employing biotechnology and striving towards the goal of sustainable development/production are discussed in this regard and particular attention is given to: regulatory consideration and trends; characterization of toxics for resource reuse; ecotoxicological assessment evaluations; treatment trends and innovative techniques, residual management.

Findings

Biotechnology is an important component needed to successfully achieve the goal of sustainability. “Value‐added” products from by‐products/waste and novel technologies employing biotechnical principles represent areas where significant opportunities exist.

Practical implications

The approach described here not only applies to water resource management but also includes multi‐media and multi‐disciplinary consideration.

Originality/value

The information presented herein hopefully will stimulate discussion and act as a catalyst for future direction. It perhaps may also serve as a point of reference for future evaluations of accomplishment.

Details

Management of Environmental Quality: An International Journal, vol. 17 no. 4
Type: Research Article
ISSN: 1477-7835

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Article
Publication date: 20 April 2010

Guang Jin, A.J. Englande and Chih‐Yang Hu

The purpose of this paper is to describe the investigation of distribution of metals in water and sediment samples of Poydras‐Verret wetland, an area that has received…

623

Abstract

Purpose

The purpose of this paper is to describe the investigation of distribution of metals in water and sediment samples of Poydras‐Verret wetland, an area that has received approximately 40 years input of secondarily treated municipal effluent.

Design/methodology/approach

Water and sediment samples were analyzed for metals for a period of 18 months. These metals were also monitored for the secondarily treated effluent, and at a reference/control wetland that does not receive wastewater. Analysis of variance (ANOVA) and Student Newman‐Keuls post‐hoc ANOVA analysis were conducted to evaluate the pattern of metal distribution within the Poygras‐Verret wetland and compare results to the reference wetland. Heavy metal criteria established by United States Environmental Protection Agency (USEPA) and State of Louisiana were also used to assess the potential chronic and acute health impacts of heavy metals in the Poydras‐Verret wetland.

Findings

Concentrations of metals of the Poydras‐Verret wetland water are not different from those found in the reference wetland water, suggesting no observed accumulation of these metals within the receiving wetland water. All metals are below the acute criteria.

Originality/value

Historical data regarding metal accumulation in wetlands in the published literature is limited. This paper provides supporting evidence that using wetlands to assimilate wastewater could be a long‐term, practical solution with the side benefits including wetland restorations and protection from wave erosion and storm surge.

Details

Management of Environmental Quality: An International Journal, vol. 21 no. 3
Type: Research Article
ISSN: 1477-7835

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Article
Publication date: 1 March 2006

Guang Jin and A.J. Englande

The primary objective of this study is to develop a predictive model that will predict the swimmability of certain areas of a brackish water body (Lake Pontchartrain) based on…

355

Abstract

Purpose

The primary objective of this study is to develop a predictive model that will predict the swimmability of certain areas of a brackish water body (Lake Pontchartrain) based on physicochemical and meteorological conditions.

Design/methodology/approach

Samples were collected and analyzed for bacteria indicator organisms at 13 sites along and adjacent to Lincoln Beach for four years. Physicochemical parameters and meteorological data were also recorded. A logistic regression model and an artificial neural networks (ANNs) model were both used to predict whether a lake condition is “safe to swim” or “not safe to swim”, given only physicochemical and meteorological parameters.

Findings

Both models predicted very well the results observed when lake conditions were “safe to swim” (97.7 percent of time the statistical model predicted correctly and an average >99.5 percent of the time for the ANNs model). However, for conditions under which the lake water quality was “not safe to swim”, the statistical model predicted correctly only 5.6 percent of the time. The ANNs model successfully predicted the “not safe to swim” conditions for an average 98.5 percent of the time. However, this percentage decreases to 53.9 percent when ANNs is used for forecasting “not safe to swim” conditions.

Research limitations/implications

The poorer performance of both models for “not safe to swim” conditions is probably due to the fact that most data (84.5 percent) were collected during “safe to swim” conditions. The limited database for “not safe to swim” conditions resulted in a poorer forecasting success rate.

Originality/value

The ANNs model might serve as a useful tool for public beach management with increased data on “not safe to swim” conditions.

Details

Management of Environmental Quality: An International Journal, vol. 17 no. 2
Type: Research Article
ISSN: 1477-7835

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Article
Publication date: 4 July 2016

Soontaree Sakprachawut and Damien Jourdain

The purpose of this paper is to investigate the effects of land titles and farmers’ characteristics on their participation in the formal credit market in a land reform area of…

534

Abstract

Purpose

The purpose of this paper is to investigate the effects of land titles and farmers’ characteristics on their participation in the formal credit market in a land reform area of Thailand.

Design/methodology/approach

Data collected on 218 farm households in one land reform area of Western Thailand are analyzed with a generalized double-hurdle model to calculate the probability of farm households to take a loan and the size of the loans from a formal credit institute, the Bank for Agriculture and Agricultural Co-operatives.

Findings

The results suggest that the absence of a title, whether fully or partially transferable, decreases significantly the participation to the formal credit market and the size of the loans. However, this effect was small. The findings also indicate that the farm assets, household head’s gender and age, and the labor force per hectare were significantly influencing the probability of participation to borrow money as well as the amount borrowed.

Practical implications

The possibility given to farmers having title with partial transferability to provide alternative types of guarantees reduced the gap in loan-taking between the different types of land title. However, the presence of a land title, transferable or not, had a significant influence on farmers demand and success in obtaining credit.

Originality/value

The paper investigates the possible effects of a unique partial land rights in Thailand that guarantees only security of use of the land but prohibits sale.

Details

Agricultural Finance Review, vol. 76 no. 2
Type: Research Article
ISSN: 0002-1466

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Book part
Publication date: 14 December 2023

Liangrong Zu

In this chapter, the author explores the principles of responsible management education through the lens of Taoism. This chapter begins by introducing the concepts of…

Abstract

In this chapter, the author explores the principles of responsible management education through the lens of Taoism. This chapter begins by introducing the concepts of knowledge-inquiry and wisdom-inquiry and highlights the differences between the two in the context of management education. The author emphasizes the importance of wisdom-inquiry in management education, arguing that it allows individuals to not only understand and analyze information but also to apply ethical considerations when making decisions. This chapter delves into how to synthesize knowledge and wisdom in education, highlighting the need for a balance between technical skills and ethical awareness in management education. This chapter concludes with an examination of the principles of managing talent by balancing competence and character. The author discusses how to hire for character and train for competence in human resources management and development. This approach involves focusing on developing individuals' character traits, such as integrity, compassion and empathy, in addition to their technical skills. This chapter demonstrates the value of incorporating Taoist principles into management education. When the importance of wisdom-inquiry, balancing competence and character, and developing ethical leaders is emphasized, management education can prepare individuals to navigate the complexities of the modern business landscape while promoting responsible business practices.

Details

Responsible Management and Taoism, Volume 2
Type: Book
ISBN: 978-1-83797-640-9

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Article
Publication date: 23 November 2021

Bao-Guang Chang and Kun-Shan Wu

The purpose of this paper is to study the influence of financial flexibility (FF) on enterprise performance (EP) within Taiwan’s hospitality industry during the COVID-19 shock and…

482

Abstract

Purpose

The purpose of this paper is to study the influence of financial flexibility (FF) on enterprise performance (EP) within Taiwan’s hospitality industry during the COVID-19 shock and explore whether EP varies with hospitality industry characteristics.

Design/methodology/approach

Secondary data of 39 Taiwan Stock Exchange-listed hospitality firms were collected from the Taiwan Economic Journal databases. Quantile regression analysis was applied to examine the FF-EP relationship

Findings

The results evidence that there is a U-shaped (convex) FF-EP relationship for hospitality firms in the 10th, 25th and 50th Tobin’s Q quantiles and in asset-heavy firms. For asset-light firms, FF has an inverted U-shaped (concave) effect on EP in the 90th Tobin’s Q quantile

Practical implications

The empirical results highlight the need for Taiwan’s hospitality industry as a whole to take rolling adjustment and optimization of FF and concentrate on liquidity risk management after the COVID-19 pandemic and for long-term sustainability.

Originality/value

To the best of the authors’ knowledge, this study is one of the first to examine the nonlinear FF-EP relationship in the hospitality industry of Taiwan, particularly amid the COVID-19 shock. Moreover, this study extends current literature by revealing the hospitality industry’s FF-EP relationship and highlights the importance of the pandemic crisis context.

Details

International Journal of Contemporary Hospitality Management, vol. 34 no. 2
Type: Research Article
ISSN: 0959-6119

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Article
Publication date: 1 April 2006

Xiao‐guang Liu, Ye Jin and Jun‐tong Xi

Rapid prototyping (RP) technology is playing an important role in new product development but, because of the RP machines' costliness, many enterprises, especially those small and…

911

Abstract

Purpose

Rapid prototyping (RP) technology is playing an important role in new product development but, because of the RP machines' costliness, many enterprises, especially those small and medium‐sized enterprises, cannot afford them. Accordingly, in this paper, a web‐based tele‐manufacturing service system for RP is proposed, which enables geographically dispersed enterprises to share RP machines.

Design/methodology/approach

The system is composed of three parts: online commerce, online manufacturing service, and online data management. In addition, several distinctive supporting software packages are provided, which afford great convenience to enterprises to get RP services.

Findings

It is validated that the system can result in substantial saving in the cost and product development time.

Practical implications

The system is also a good reference for other similar shared resources.

Originality/value

The system embodies the new notion that an enterprise's full‐course participation in the manufacturing service, and the rapidness of manufacturing, embody the full course of RP manufacturing service and not merely the manufacturing process itself.

Details

Journal of Manufacturing Technology Management, vol. 17 no. 3
Type: Research Article
ISSN: 1741-038X

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