Challenges and insights from holistic sustainability reporting for shrimp fisheries in different jurisdictions

2020 ◽  
Vol 77 (6) ◽  
pp. 2022-2032
Author(s):  
Sara Hornborg ◽  
Alistair J Hobday ◽  
Emily Ogier ◽  
Aysha Fleming ◽  
Linda Thomas ◽  
...  
Keyword(s):  
Environmental Sustainability ◽  
High Performance ◽  
International Comparisons ◽  
Sustainability Reporting ◽  
Cost Effective ◽  
Data Availability ◽  
Sustainable Food ◽  
Governance Indicators ◽  
Trade Offs ◽  
Ethical Governance

Abstract Sustainability of fisheries extends beyond environmental aspects. Broad information is today sought for decision-making and by many stakeholders. Here, a framework recently developed to comprehensively report on sustainability issues relevant to fisheries, the Australian Fisheries Healthcheck, was used to compare five crustacean trawl fisheries from Australia and Europe. Indicators covered 51 different aspects of sustainability in 24 sub-categories related to ecological, economic, social and ethical, governance, and external (e.g. climate, contaminants) dimensions. We found that data availability did not vary greatly between fisheries, but the indicator outcomes did. Furthermore, while environmental sustainability has received most attention in assessments to date, the associated indicators had the least publicly available data. Another finding was that eco-certification and high performance on several governance indicators did not necessarily equate to sustainability. For future international comparisons, challenges include identifying comparable and cost-effective metrics for indicators derived from different data collection strategies. Commencing holistic reporting on broader sustainability is important since the data provided (i) are sought by stakeholders; (ii) enable improved availability of empirical data for research on the effectiveness of different governance modes; (iii) can illustrate trade-offs between different dimensions of sustainability, and (iv) build trust in the fishery system as producers of sustainable food.

Characterization of Exotic Material Heat Sinks for Laser Diode Arrays

2005 ◽  
Vol 883 ◽  
Author(s):  
Edward.F. Stephens
Keyword(s):  
Laser Diode ◽  
High Performance ◽  
Critical Role ◽  
Cost Effective ◽  
Heat Sinks ◽  
High Peak Power ◽  
Low Duty Cycle ◽  
Trade Offs ◽  
Duty Cycles ◽  
Laser Diode Arrays

AbstractLow duty cycle, high peak power, conductively cooled laser diode arrays have been manufactured for several years by a number of different vendors. Typically these packages have been limited to a few percent duty cycles due to thermal problems that develop in tight bar pitch arrays at higher duty cycles. Traditionally these packages are made from some combination of copper and BeO or Tungsten/copper and BeO. Trade-offs between thermal conductivity and CTE matching are always made when manufacturing these devices. In addition, the manufacturability of the heat sinks plays a critical role in creating a cost effective, high performance solution. In this discussion we examine several different exotic materials that have been manufactured and tested as heat sinks for laser diode arrays.

scholarly journals Towards food systems transformation—five paradigm shifts for healthy, inclusive and sustainable food systems

Food Security ◽  
2021 ◽  
Author(s):  
Ruerd Ruben ◽  
Romina Cavatassi ◽  
Leslie Lipper ◽  
Eric Smaling ◽  
Paul Winters
Keyword(s):  
Environmental Sustainability ◽  
Food Systems ◽  
Food System ◽  
Paradigm Shifts ◽  
System Transformation ◽  
Sustainable Food ◽  
Trade Offs ◽  
Environmental Objectives ◽  
Participatory Institutions ◽  
Systems Transformation

AbstractFood systems must serve different societal, public health and individual nutrition, and environmental objectives and therefore face numerous challenges. Considering the integrated performances of food systems, this paper highlights five fundamental paradigm shifts that are required to overcome trade-offs and build synergies between health and nutrition, inclusive livelihoods, environmental sustainability and food system resilience. We focus on the challenges to raise policy ambitions, to harmonize production and consumption goals, to improve connectivity between them, to strengthen food system performance and to anchor the governance of food systems in inclusive policies and participatory institutions. Taken together, these shifts in paradigms shape a new discourse for food system transformation that will be capable to respond to current and future policy challenges.

scholarly journals The role of livestock in sustainable food production systems in Canada

2021 ◽  
Author(s):  
Kim Ominski ◽  
Kebebe E. Gunte ◽  
Karin Wittenberg ◽  
Getahun Legesse ◽  
Genet Mengistu ◽  
...  
Keyword(s):  
Environmental Sustainability ◽  
Production Systems ◽  
Consumer Preferences ◽  
Scientific Evidence ◽  
Livestock Production ◽  
Nutritional Adequacy ◽  
Sustainable Food ◽  
Trade Offs ◽  
Livestock Products ◽  
Water Taste

Global drivers such as the growing human population, evolving consumer preferences, globalization, and climate change have put pressure on the agri-food sector to produce more livestock products with less land, feed and water. Taste, nutritional value, cost, convenience, source, animal welfare and environmental sustainability of food are criteria upon which purchasing decisions are made. In response, an environmental footprint analysis composed of greenhouse gas emissions, nutrient and water use efficiency, water quality, carbon storage and biodiversity has been completed for many commodities. However, as livestock production systems occur within complex agro-ecosystems, it is extremely challenging to formulate a single overall sustainability metric. There is no “silver bullet” to solve the environmental concerns of all livestock production systems as they operate under different constraints on different landscapes, with different water and nutrient cycles, and soil types. Furthermore, the lack of scientific evidence regarding the interactions between livestock production, human nutritional adequacy and the health of our environment makes it difficult for consumers to interpret this information and make informed food choices. This review examines these complex interactions and trade-offs, as well as the potential impacts of changes in consumer dietary choice on environmental sustainability, nutritional adequacy and land use.

Mineral/microfibrillated cellulose composite materials: High performance products, applications, and product forms

TAPPI Journal ◽  
2018 ◽  
Vol 17 (09) ◽  
pp. 507-515 ◽  
Author(s):  
David Skuse ◽  
Mark Windebank ◽  
Tafadzwa Motsi ◽  
Guillaume Tellier
Keyword(s):  
Composite Materials ◽  
High Performance ◽  
Aqueous Suspension ◽  
Production Capacity ◽  
Cost Savings ◽  
Cost Effective ◽  
New Materials ◽  
Wet Strength ◽  
Product Forms ◽  
Cellulose Composite

When pulp and minerals are co-processed in aqueous suspension, the mineral acts as a grinding aid, facilitating the cost-effective production of fibrils. Furthermore, this processing allows the utilization of robust industrial milling equipment. There are 40000 dry metric tons of mineral/microfbrillated (MFC) cellulose composite production capacity in operation across three continents. These mineral/MFC products have been cleared by the FDA for use as a dry and wet strength agent in coated and uncoated food contact paper and paperboard applications. We have previously reported that use of these mineral/MFC composite materials in fiber-based applications allows generally improved wet and dry mechanical properties with concomitant opportunities for cost savings, property improvements, or grade developments and that the materials can be prepared using a range of fibers and minerals. Here, we: (1) report the development of new products that offer improved performance, (2) compare the performance of these new materials with that of a range of other nanocellulosic material types, (3) illustrate the performance of these new materials in reinforcement (paper and board) and viscosification applications, and (4) discuss product form requirements for different applications.

Parallel Computing for Tire Simulations

2011 ◽  
Vol 39 (3) ◽  
pp. 193-209 ◽  
Author(s):  
H. Surendranath ◽  
M. Dunbar
Keyword(s):  
High Performance ◽  
Effective Means ◽  
Cost Effective ◽  
Turnaround Time ◽  
Careful Consideration ◽  
Rolling Contact ◽  
Element Analysis ◽  
Parallel Solvers ◽  
Design Changes ◽  
Highly Nonlinear

Abstract Over the last few decades, finite element analysis has become an integral part of the overall tire design process. Engineers need to perform a number of different simulations to evaluate new designs and study the effect of proposed design changes. However, tires pose formidable simulation challenges due to the presence of highly nonlinear rubber compounds, embedded reinforcements, complex tread geometries, rolling contact, and large deformations. Accurate simulation requires careful consideration of these factors, resulting in the extensive turnaround time, often times prolonging the design cycle. Therefore, it is extremely critical to explore means to reduce the turnaround time while producing reliable results. Compute clusters have recently become a cost effective means to perform high performance computing (HPC). Distributed memory parallel solvers designed to take advantage of compute clusters have become increasingly popular. In this paper, we examine the use of HPC for various tire simulations and demonstrate how it can significantly reduce simulation turnaround time. Abaqus/Standard is used for routine tire simulations like footprint and steady state rolling. Abaqus/Explicit is used for transient rolling and hydroplaning simulations. The run times and scaling data corresponding to models of various sizes and complexity are presented.

Impact of Sustainability Reporting on Firm Performance of Companies in India

2015 ◽  
Vol 4 (3) ◽  
Author(s):  
Priyanka Garg
Keyword(s):  
Environmental Sustainability ◽  
Rural Livelihoods ◽  
Sustainability Reporting ◽  
Annual Reports ◽  
Marginal Lands ◽  
Great Ability ◽  
Reporting Practices ◽  
Long Run ◽  
Short Run ◽  
Core Idea

The core idea of sustainability is that current decisions should not impair the prospects for maintaining or improving future living standards (Repetto, 1986). GRI (2006) defined sustainability as meeting the needs of the present without compromising the ability of future generations to meet their needs. The challenges of sustainable development are many and it is widely accepted that organizations have not only a responsibility but also a great ability to exert positive change on the state of the worlds economy, and environmental and social conditions. Further, the issue of environmental sustainability is intertwined with that of poverty and inequity. The causative relationship runs both ways- increased poverty and loss of rural livelihoods accelerates environmental degradation as displaced people put greater pressure on forests, fisheries, and marginal lands. The present study has made an attempt to investigate the relationship between sustainability reporting and financial performance of companies in India. Data have been collected with the help of annual reports of selected companies and Prowess Database. Collected data have been analyzed with the help of SPSS 16.0. The study shows that sustainability reporting practices of companies has improved over the time. Further, research reveals that sustainability reporting practices of a firm impact its performance negatively in short run while positively in long run.

Motivating Compliance: Firm Response to Mandatory Disclosure Policies

2018 ◽  
Vol 32 (2) ◽  
pp. 103-119
Author(s):  
Colleen M. Boland ◽  
Chris E. Hogan ◽  
Marilyn F. Johnson
Keyword(s):  
Conflict Of Interest ◽  
Low Cost ◽  
Cost Effective ◽  
Data Availability ◽  
Policy Adoption ◽  
Future Research ◽  
Regulated Firms ◽  
Firm Response ◽  
Disclosure Rules ◽  
The Impact

SYNOPSIS Mandatory existence disclosure rules require an organization to disclose a policy's existence, but not its content. We examine policy adoption frequencies in the year immediately after the IRS required mandatory existence disclosure by nonprofits of various governance policies. We also examine adoption frequencies in the year of the subsequent change from mandatory existence disclosure to a disclose-and-explain regime that required supplemental disclosures about the content and implementation of conflict of interest policies. Our results suggest that in areas where there is unclear regulatory authority, mandatory existence disclosure is an effective and low cost regulatory device for encouraging the adoption of policies desired by regulators, provided those policies are cost-effective for regulated firms to implement. In addition, we find that disclose-and-explain regulatory regimes provide stronger incentives for policy adoption than do mandatory existence disclosure regimes and also discourage “check the box” behavior. Future research should examine the impact of mandatory existence disclosure rules in the year that the regulation is implemented. Data Availability: Data are available from sources cited in the text.

Azo (Hydrazone) pigments: general principles

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Robert Christie
Keyword(s):  
High Performance ◽  
Metal Salt ◽  
Low Cost ◽  
Cost Effective ◽  
Precipitation Process ◽  
Ambient Temperatures ◽  
Technical Performance ◽  
Chemical Structures ◽  
General Chemical ◽  
Physical Form

Abstract This paper presents an overview of the general chemical principles underlying the structures, synthesis and technical performance of azo pigments, the dominant chemical class of industrial organic pigments in the yellow, orange, and red shade areas, both numerically and in terms of tonnage manufactured. A description of the most significant historical features in this group of pigments is provided, starting from the discovery of the chemistry on which azo colorants are based by Griess in the mid-nineteenth century, through the commercial introduction of the most important classical azo pigments in the early twentieth century, including products known as the Hansa Yellows, β-naphthol reds, including metal salt pigments, and the diarylide yellows and oranges, to the development in the 1950s and 1960s of two classes of azo pigments that exhibit high performance, disazo condensation pigments and benzimidazolone-based azo pigments. A feature that complicates the description of the chemical structures of azo pigments is that they exist in the solid state as the ketohydrazone rather than the hydroxyazo form, in which they have been traditionally been illustrated. Numerous structural studies conducted over the years on an extensive range of azo pigments have demonstrated this feature. In this text, they are referred to throughout as azo (hydrazone) pigments. Since a common synthetic procedure is used in the manufacture of virtually all azo (hydrazone) pigments, this is discussed in some detail, including practical aspects. The procedure brings together two organic components as the fundamental starting materials, a diazo component and a coupling component. An important reason for the dominance of azo (hydrazone) pigments is that they are highly cost-effective. The syntheses generally involve low cost, commodity organic starting materials and are carried out in water as the reaction solvent, which offers obvious economic and environmental advantages. The versatility of the approach means that an immense number of products may be prepared, so that they have been adapted structurally to meet the requirements of many applications. On an industrial scale, the processes are straightforward, making use of simple, multi-purpose chemical plant. Azo pigments may be produced in virtually quantitative yields and the processes are carried out at or below ambient temperatures, thus presenting low energy requirements. Finally, provided that careful control of the reaction conditions is maintained, azo pigments may be prepared directly by an aqueous precipitation process that can optimise physical form, with control of particle size distribution, crystalline structure, and surface character. The applications of azo pigments are outlined, with more detail reserved for subsequent papers on individual products.

Robustness versus Performance Assessment for Different Gamma-TiAl Processing Routes

2011 ◽  
Vol 1295 ◽  
Author(s):  
Marc Thomas
Keyword(s):  
High Performance ◽  
Cost Effective ◽  
Processing Route ◽  
Transportation Industry ◽  
Tial Alloys ◽  
Alternative Processing ◽  
Aerospace Applications ◽  
Robust Processing ◽  
Processing Techniques ◽  
Robust Process

ABSTRACTOne of the main driving force for the development of advanced structural materials is weight saving especially in the transportation industry in order to reduce CO2 emission. The utilization of gamma aluminides, as good candidates for aerospace applications, is strongly related to the development of a cost-effective and robust processing route, as far as possible. It is well established that the processing route, i.e. cast, wrought or PM, has a dramatic effect on the microstructure and texture of gamma-TiAl alloys. Therefore, significant microstructural variations through post-heat treatments coupled with compositional modifications can only guarantee a proper balance of desired properties. However, a number of metallurgical factors during the processing steps can contribute to some scattering in properties. This review will highlight several critical process variables in terms of the resulting g-TiAl microstructures. Of primary importance is the as-cast texture which is difficult to control and may contribute to prefer some alternative processing routes to ensure a better repeatability in mechanical results. Some innovative processing techniques for controlling the structure will then be presented. The main point which will be discussed in this paper is whether an approach leading to a robust process would not be at the expense of the high performance of the structural material.

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