The effect of protons on the performance of swept-charge devices

This is the pre-print version of the final paper published in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. The published article is available from the link below. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. Copyright @ 2009 Elsevier B.V.The e2v technologies CCD54, or swept-charge device (SCD) has been extensively radiation tested for use in the Chandrayaan-1 X-ray Spectrometer (C1XS) instrument, to be launched as a part of the Indian Space Research Organisation (ISRO) Chandrayaan-1 payload in 2008. The principle use of the SCD is in X-ray fluorescence (XRF) applications, the device providing a relatively large collecting area of 1.1 cm2, and achieving near Fano-limited spectroscopy at −15 °C, a temperature that is easily obtained using a thermoelectric cooler (TEC). This paper describes the structure and operation of the SCD and details the methodology and results obtained from two proton irradiation studies carried out in 2006 and 2008, respectively to quantify the effects of proton irradiation on the operational characteristics of the device. The analysis concentrates on the degradation of the measured FWHM of various elemental lines and quantifies the effects of proton fluence on the observed X-ray fluorescence spectra from mineralogical target samples

CO-OPERATING TO COMPETE IN HIGH VELOCITY GLOBAL MARKETS: THE STRATEGIC ROLE OF FLEXIBLE SUPPLY CHAIN ARCHITECTURES

Continued value creation is paramount for the survival of firms competing in today's high velocity global business environment. This paper presents a conceptual framework for understanding how firms can create and capture value within a highly volatile and uncertain business environment by exploiting both performance gaps and opportunity gaps through the development and use of flexible supply chain architectures. The choice of flexible organizational architecture allows for the continued reconfiguration of the independent modular components of the supply chain so as to achieve optimal leverage of both the firms core competencies as well as their collaborative partners complementary resources. The case of Cellars of Canterbury, a New Zealand based International wine marketing and distribution cooperative enterprise provides empirical support.Industrial Organization, International Relations/Trade,

CO-OPERATING TO COMPETE IN HIGH VELOCITY GLOBAL MARKETS: THE STRATEGIC ROLE OF FLEXIBLE SUPPLY CHAIN ARCHITECTURES

Continued value creation is paramount for the survival of firms competing in today's high velocity global business environment. This paper presents a conceptual framework for understanding how firms can create and capture value within a highly volatile and uncertain business environment by exploiting both performance gaps and opportunity gaps through the development and use of flexible supply chain architectures. The choice of flexible organizational architecture allows for the continued reconfiguration of the independent modular components of the supply chain so as to achieve optimal leverage of both the firms core competencies as well as their collaborative partners complementary resources. The case of "Cellars of Canterbury," a New Zealand based International wine marketing and distribution cooperative enterprise provides empirical support. Keywords: value creation, flexible supply chain architectures, leverage, core competencies.value creation, flexible supply chain architectures, leverage, core competencies., Industrial Organization, Marketing,

AN EFFICIENCY ANALYSIS OF CATTLE BACKGROUNDING IN KANSAS

Efficiency measures can be used to generate inferences about the future direction of the industry and determine factors that may influence the structure. This study evaluated relative efficiencies of Kansas backgrounding operations. Farms that engaged in the backgrounding of cattle were very inefficient. Significant improvement is needed in technology adoption and input usage.Livestock Production/Industries,

Public and Private Institutional Responses to Advocacy Attacks: The Case of the Global Cocoa Industry and Child Labour Abuse

Over the past decade the global agri-food industry has come under increasing attack by advocacy groups related to their production and marketing processes (Bowmar and Gow, 2009). Advocacy groups have used these attacks to exploit the growing intergenerational disconnect between consumers and farming to campaign for narrowly defined political ideals while challenging traditional agricultural practices (Olin, 1999). This disconnect has provided advocacy groups the opportunity to use boycotts and other media attacks to severely adverse impact not only branded manufacturers and retailers, but their farmer suppliers. The agri-food industry’s challenge is to understand how to develop appropriate individual and collective responses to these attacks that minimize their current and future adverse impact and provide mutually beneficial outcomes for all of the channel members. Using an instrumental case study of the international cocoa and chocolate industry’s response to the child labour abuse and trafficking claims, we analyse and evaluate the alternative individual and collective responses that firms can implement to minimize their current and future adverse impact from advocacy attacks and provide mutually beneficial outcomes for all of the channel members. This paper follows a comparative institutional analysis methodology to analyse the multiple nested case studies and evaluate the impact and implications of each alternative.Certification, Advocacy, Cocoa, Chocolate, Agribusiness, Agricultural and Food Policy, Community/Rural/Urban Development, Environmental Economics and Policy, International Development, Marketing,

Strategic Positioning Under Agricultural Structural Change: A Critique of Long Jump Co-operative Ventures

Industrial Organization, Agribusiness,

The Impact of Alternative Market Orientation Strategies on Firm Performance: Customer versus Competitor Orientation

Research studies have differed over the importance of the relative emphasis of a customer versus competitor orientation in the development of a market orientation (Slater and Narver, 1994; Tajeddini, 2010). In this study, we assess whether the emphasis of one component over another of a market orientation is an important determinant of firm performance within the Illinois beef industry, specifically the cow-calf sector. Using a series of OLS regressions, we examine the importance of a market orientation, relative emphasis, learning, innovativeness, and a cost focus on firm performance. Our results suggest that a market orientation is an important determinant of firm performance while the relative emphasis of customer versus competitor orientation is not statistically significant, corroborating the findings of Slater and Narver (1994). Implications and directions for future research are also discussed.Agriculture, innovation, market orientation, relative emphasis, value discipline strategies, Marketing,

Positional Advantage within Small Farms: Evidence from Illinois

As the economic viability of small farms continues to be an issue facing policy makers and economists alike, a market orientation may be a valuable resource producers can develop as they compete in a marketplace dominated by larger firms. Marketing and strategy scholars have long established the importance of a market orientation in determining firm performance. More recently, scholars have studied the effect of these concepts in agriculture. Extending the literature of market orientation in agriculture, this study examines the concept of a positional advantage and its effect on performance using a sample of small farms in Illinois. Using a sample of 347 Illinois beef producers, we empirically measure and test the construct of positional advantage and test the relationship between positional advantage and subjective performance. Our results indicate that market orientation, entrepreneurship, innovation and learning are first-order indicators of positional advantage and that the positional advantage of a firm is positively related to firm performance.Agriculture, innovation, market orientation, positional advantage, Farm Management, Production Economics, L11, L25, L26,

STRATEGIC POSITIONING UNDER AGRICULTURAL STRUCTURAL CHANGE: A CRITIQUE OF LONG JUMP CO-OPERATIVE VENTURES

Structural change in US agriculture has disrupted the traditional organization of the supply chain. Not only does the scale increase of firms common during the industrial period (1970-1995) continue, but also with the rise of a knowledge-based economy, new organizational forms and supply chain linkages are proliferating. Examples are the radical transformation of the relationship between input suppliers and producers in the biotech arena, the dominance of the swine industry by the integrated model, the rise of marketing and production contracting, and the arrival of multi-member closed producer organizations such as the new generation cooperatives and limited liability companies. The focus of this research is these new integrated producer organizations. Much of the activity and subsequent analysis of new producer organizations has focused on value-added opportunities through integration (i.e., Merrett et al, 1999). There are numerous examples from pasta plants and egg breaking, to cattle feeding, hog slaughter, and alcohol production. These value-added opportunities we define as long jump ventures. That is, they lie outside the core competencies of the principles in the firm, the producers. Strategic management theory (Prahalad, 1986,1990,1993; Quinn, 1977,1990; Mintzberg, 1987,1994,1996,1998,2000) suggests that there may be other opportunities available to producer organizations that better leverage their core competencies, short jump ventures. Short jump ventures are value-creating opportunities that involve a minimum R&D, less capital, less risk, and less direct specialized knowledge. While the economy at large is producing vast quantifies of long jump innovations in the fields of biotechnology and information, there is another revolution occurring in business involving short jump innovation in the area of service. This new field, known as; one-to-one marketing (Pepper, 1993, 1999), relationship management (Hansen, 1983), relationship marketing (Curry, 2000), and strategic partnering (Rackam, 1996), focuses on the supplier-client interface. Value is created by significant coordination between supplier and client. The boundary between firms is blurred, knowledge is actively shared, and partners are dedicated to mutual profitability. By understanding the needs of the client, the supplying firm is able to adapt its products and more importantly services. This creates a unique and more valuable business for the supplier insulating it from competitive forces and allowing greater value capture. This not only creates greater supply chain efficiency, but intra-firm and inter-firm product innovation result as well. The objective of this paper is to study strategic options for production agriculture dealing with the failure of the commodity business model. From this analysis of strategic positioning the paper introduces relationship management as a viable strategic alternative for commodity producers. Finally, a case study of the Wairarapa Lamb Cooperative, a New Zealand based firm doing business in the United States, is introduced. The case serves not only as an example of relationship management in agriculture but also demonstrates how producers can work within their own core competencies, leverage knowledge assets, and avoid highly specific fixed assets. The methodology will be: 1) Review the literature as to the types of activities in which integrated producer organizations are engaged. 2) Present a theoretical model of strategy analyzing short jump versus long jump ventures. 3) Introduce Relationship Management. 4) Employ a case study example of the theory in practice. This paper theoretically analyzes producers' vertical integration through "brick and mortar" investments, such as hog slaughter and ethanol production. A theoretical model using strategic management theory and a case study are used to critique the long jump strategy and suggest relationship management as a more viable alternative.Agribusiness,

Strategic Positioning Under Agricultural Structural Change: A Critique of Long Jump Co-operative Ventures

This study utilizes strategic management theory to analyze the recent proliferation in non-commodity vertical integration producer-owned businesses in the US. The paper introduces the notion of the Value Creation Triad where ownership, competency, and control need to be aligned for success. Very related to the Triad concept is the differentiation in strategy between long and short jumping. The paper presents an empirical case of successful vertical integration by a New Zealand lamb cooperative.Strategic management theory, Value added agriculture, Vertical integration, Producer-owned enterprise, Core competencies, Tacit knowledge, Productivity gap, Opportunity gap, Agribusiness,