Sample records for activity-based costing offshore

  1. Activity-Based Costing

    Microsoft Academic Search

    Daniel J. Goebel; Greg W. Marshall; William B. Locander

    1998-01-01

    Market- and customer-oriented activities represent a major resource investment for a firm. Activity-based costing (ABC) provides an enhanced means for marketers to assess the cost-versus-benefits of such activities. This article describes the usefulness of ABC to marketers at various levels of decision making: unit level, product level, channel level, and segment\\/customer level. Examples are provided to illustrate the potential for

  2. Activity based costing for projects

    Microsoft Academic Search

    Tzvi Raz; Dan Elnathan

    1999-01-01

    A generic activity-based costing model is presented. The model includes a cost allocation structure designed specifically for projects, and a number of cost drivers for typical project activities. A numerical example illustrates the benefits that ABC can provide. The paper concludes with a discussion of some issues involved in the implementation of ABC, and of activity-based management.

  3. Simulating Activity-based Costing

    Microsoft Academic Search

    C. Helberg; J. E. Galletly; J. R. Bicheno

    1994-01-01

    Many traditional cost accounting methods can result in distorted cost information as they allocate overheads in proportion to labour. This can result in a low technology product being overcosted and a high technology product being undercosted. Activity-based costing (ABC) allocates costs more accurately and pinpoints areas of waste. Describes software which provides a tutorial introduction to ABC and highlights the

  4. Activity-based costing for production learning

    Microsoft Academic Search

    M. C. Andrade; R. C. Pessanha Filho; A. M. Espozel; L. O. A. Maia; R. Y. Qassim

    1999-01-01

    Learning has long been established as a phenomenon of great interest in operations management. Cost reduction through task learning has a great potential. Its quantitative determination is performed in this work using activity-based costing (ABC) and compared with traditional costing, employing a practical example in a mechanical workshop. Results obtained by these two techniques may be significantly different.

  5. Activity-based costing systems and incremental costs

    Microsoft Academic Search

    Michael Bromwich; Cheolkyu Hong

    1999-01-01

    This article derives, in a comprehensive but informal way, the essential conditions for activity-based costing (ABC) and for costs proportional with output volume (CVO), such as variable material and component costs, to measure economic costs defined as incremental costs. Without this property these costing systems may give incorrect signals in decision making, such as in pricing, in altering the product

  6. FUZZY ACTIVITY BASED COSTING: A METHODOLOGY FOR HANDLING UNCERTAINTY IN ACTIVITY BASED COSTING SYSTEMS

    Microsoft Academic Search

    HEATHER NACHTMANN; KIM LASCOLA NEEDY

    2001-01-01

    Activity based costing (ABC) systems are often developed using estimated input data. A methodology based on fuzzy set theory has been developed to handle estimation imprecision and uncertainty in ABC systems. This methodology creates a new type of ABC system; a fuzzy activity based costing (FABC) system. This paper introduces the concepts behind FABC, discusses the FABC system development process,

  7. Quality cost measurement under activity-based costing

    Microsoft Academic Search

    Wen-Hsien Tsai

    1998-01-01

    The purpose of this paper is to present an integrated cost of quality - activity-based costing (COQ-ABC) framework for measuring quality costs under ABC. The main deficiencies of most COQ systems are: (1) no consensus method to allocate overhead costs to COQ elements, (2) the failure to trace quality costs to their sources, and (3) the lack of information about

  8. Introduction to Activity Based Costing (ABC)

    NSDL National Science Digital Library

    Roztocki, Narcyz

    Narcyz Roztocki, staff member at the University of Pittsburgh, presents this Introduction to Activity Based Costing (ABC) in slide presentation format. Topics include "a typical situation in a small manufacturing firm," "major factors for determination of market price," and "traditional cost accounting (TCA)" among others. Participants may respond to the presentation via a questionnaire and a webliography of other ABC and Equal Value Added (EVA) sites is annotated for further research.

  9. The costs of activity-based management

    Microsoft Academic Search

    Peter Armstrong

    2002-01-01

    Activity-based costing and management are now the stock-in-trade of a lucrative industry, with at least one Big Six consultancy operation devoted wholly to their promotion. Both techniques represent a major extension of accountability in the modern corporation, into a zone previously defined in accounting terms as fixed overhead. The mechanics depend on treating the staff department as a mass-producer of

  10. The Costs of Activity-Based Management

    Microsoft Academic Search

    Peter Armstrong

    2001-01-01

    Abstract Activity-based costing and ,management ,are now ,the stock-in-trade of a ,lucrative industry, with at least one Big Six consultancy operation devoted wholly to their promotion. Both techniques represent a major,extension of accountability in the modern corporation, into a zone previously defined in accounting terms as fixed overhead. The mechanics,depend on treating the staff departmentas a mass-producer of repeated acts

  11. Cost of Offshore Wind Energy Charlene Nalubega

    E-print Network

    Mountziaris, T. J.

    and Industrial Engineering The focus of my research is to estimate the cost of floating offshore wind turbines turbines in shallow water or in the target location, we will model a system where the wind turbine turbines have evolved to be offshore. Offshore wind turbines generate more electricity because

  12. A Mathematical Programming Approach for Procurement Using Activity Based Costing

    Microsoft Academic Search

    Zeger Degraeve; Filip Roodhooft

    2000-01-01

    Activity Based Costing and Management are important topics in today's management accounting literature. While there has been much attention paid in the Activity Based Costing literature to customer profitability analysis, process improvement and product design, there has been far less notice taken of purchasing. In this paper we develop an Activity Based Costing approach for the determination of procurement strategies.

  13. Activity-based costing model for joint products

    Microsoft Academic Search

    Wen-Hsien Tsai

    1996-01-01

    Activity-Based Costing (ABC) is developed to improve the accuracy of product cost data derived from the traditional cost system. ABC transforms indirect (overhead) cost in the traditional cost system into direct costs by using activities as the intermediums of cost assignment. ABC traces indirect costs to the activities and then distributes the activity costs to the products. ABC has been

  14. Activity-based costing and distribution logistics management

    Microsoft Academic Search

    Timo Pirttilä; Petri Hautaniemi

    1995-01-01

    Most of the research papers and articles dealing with activity-based costing (ABC) have their focus on manufacturing operations, although the ABC approach can be applicable across the spectrum of company functions. This paper discusses activity-based costing in context with distribution logistics management. The procedure of calculating activity-based costs of a distribution warehouse in a case-company is presented in detail.

  15. Activity-based costing concepts for quality improvement

    Microsoft Academic Search

    Christopher D. Ittner

    1999-01-01

    This article shows how activity-based costing concepts can be adapted to measure quality-related costs and prioritize quality improvement efforts. It first reviews three levels of activity analysis that can be used to quantify the internal costs arising from failure to meet customer requirements. It then highlights how activity-based costing concepts can be extended to encompass quality-related costs arising from supplier

  16. Activity-Based Costing in Government: Possibilities and Pitfalls

    Microsoft Academic Search

    Richard E. Brown; Mark J. Myring; Cadillac G. Gard

    1999-01-01

    Activity-based costing (ABC) is at the center of the larger management perspective known as activity-based management, or ABM. Despite its popularity in the literature, relatively little is still known about the details of ABC, especially in government circles. There are many unanswered questions relating to the details of how to go about implementing ABC, its possible uses, and its costs

  17. A New Activity-Based Financial Cost Management Method

    NASA Astrophysics Data System (ADS)

    Qingge, Zhang

    The standard activity-based financial cost management model is a new model of financial cost management, which is on the basis of the standard cost system and the activity-based cost and integrates the advantages of the two. It is a new model of financial cost management with more accurate and more adequate cost information by taking the R&D expenses as the accounting starting point and after-sale service expenses as the terminal point and covering the whole producing and operating process and the whole activities chain and value chain aiming at serving the internal management and decision.

  18. Application of activity-based costing: some case experiences

    Microsoft Academic Search

    A. Gunasekaran; H. B. Marri; Y. Y. Yusuf

    1999-01-01

    In present day manufacturing organizations, performance measurements play an important role in providing strategic directions and developing corresponding operational policies and methods. One such method is the activity-based costing (ABC) method which calculates the cost of activities and helps in making decisions on product mix and price for improving the utilization of resources and minimizing the cost of production. Even

  19. Activity-Based Costing for Economic Value Added®

    Microsoft Academic Search

    Regina M. Anctil; James S. Jordan; Arijit Mukherji

    1998-01-01

    Economic value added, which is the currently popular term for the traditional accounting concept of residual income (RI), subtracts from operating income an interest charge for invested capital. This paper provides an activity-based cost system that supports RI maximization. We construct a model of participative budgeting for a multi-activity firm in which the cost system allocates plant and equipment cost

  20. Strategic management and activity-based costing

    Microsoft Academic Search

    R. G. Manalo; M. D. Valenzuela-Manalo

    2010-01-01

    This paper introduces a framework that could change the way firms set their strategies and goals. This framework links corporate budget to corporate strategies which are cascaded down to the last employee. It bridges the gap between operations personnel and finance people as they talk of only the jargon of activity or process costs. It is flexible as it can

  1. Remanufacturing System Cost Management Based on Integration of Target Costing and Activity-Based Costing

    Microsoft Academic Search

    Ma Fei; Yang Hua; Sun Bao-feng; Wu Meng-na

    2008-01-01

    Cost management plays a very important part in the implementation of remanufacturing. This paper has firstly described the remanufacturing process which includes disassembling, sorting, inspecting, cleaning, refurbishing, re-inspecting etc. Then after the brief introduction of target costing (TC) method and activity-based costing (ABC) method, the integrated system of the two methods are established which will allow remanufacturing companies to account

  2. METHODS FOR HANDLING UNCERTAINTY IN ACTIVITY BASED COSTING SYSTEMS

    Microsoft Academic Search

    HEATHER NACHTMANN; KIM LASCOLA NEEDY

    2003-01-01

    Activity based costing (ABC) systems are implemented with the purpose of obtaining accurate product and process cost information. Due to extensive data requirements, ABC input data are often estimated which leads to inherent imprecision and uncertainty in these systems. The objective of this research is to develop and compare methods for handling this inherent data imprecision and uncertainty within ABC

  3. Activity-based costing for logistics and marketing

    Microsoft Academic Search

    Drew Stapleton; Sanghamitra Pati; Erik Beach; Poomipak Julmanichoti

    2004-01-01

    Activity-based costing (ABC) is gradually being utilized as more of a decision-making tool than an accounting tool. This paper investigates how, after almost a decade of slow growth, ABC is gaining acceptance as a tool to determine the true costs of marketing and logistics activities. How ABC provides managers with considerable insights into how various products, territories, and customers play

  4. The Association Between Activity-Based Costing and Manufacturing Performance

    Microsoft Academic Search

    Christopher D. Ittner; William N. Lanen; David F. Larcker

    2002-01-01

    This study examines the association between activity-based costing and man- ufacturing performance. Results using a cross-sectional sample of manufactur- ing plants indicates that extensive ABC use is associated with higher quality levels and greater improvements in cycle time and quality, and is indirectly as- sociated with manufacturing cost reductions through quality and cycle time improvements. However, on average, extensive ABC

  5. Activity-based cost management in health care - another fad?

    Microsoft Academic Search

    Brian Aird

    1996-01-01

    By providing improved information for strategic planning purposes, activity-based cost management (ABM) systems can help hospitals and other health care providers improve the quality and efficiency of the care they provide, control costs and manage their resources better. The NHS is starting to evaluate the ABM approach. Describes a research project in one specialist hospital in Sheffield, UK, which found

  6. AN ANALYSIS OF ACTIVITY-BASED COSTING (ABC) PORJECT IMPLMENTATIONS

    Microsoft Academic Search

    H. Michael Chung; M. B. Khan

    Activity-Based Costing (ABC) is primary used to enhance productivity and efficiency in the business process; to help create budgets and set prices; to identify customer costs and improve customer relations; to make decisions on strategic issues; and to address external negotiation issues. ABC has been often used together with other management tools and methods depending on the overall objectives of

  7. Vendor selection and evaluation an Activity Based Costing approach

    Microsoft Academic Search

    Filip Roodhooft; Jozef Konings

    1997-01-01

    In this paper we propose an Activity Based Costing approach for vendor selection and evaluation. This system allows us to compute total costs caused by a supplier in a firm's production process, thereby increasing the objectivity in the selection process. We further show that for vendor evaluation purposes the difference between the budgeted and actual total vendor score can be

  8. Vendor selection and evaluation : an activity based costing appoach

    Microsoft Academic Search

    Filip Roodhooft; Joep Konings

    1995-01-01

    In this paper we propose an Activity Based Costing approach for vendor selection and evaluation. This system allows us to compute total costs caused by a supplier in a firm's production process, thereby increasing the objectivity in the selection process. We further show that for vendor evaluation purposes the difference between the budgeted and actual total vendor score can be

  9. Activity-based costing: a practical model for cost calculation in radiotherapy

    Microsoft Academic Search

    Yolande Lievens; Walter van den Bogaert; Katrien Kesteloot

    2003-01-01

    PurposeThe activity-based costing method was used to compute radiotherapy costs. This report describes the model developed, the calculated costs, and possible applications for the Leuven radiotherapy department.

  10. The cost of library services: Activity-based costing in an Australian academic library

    Microsoft Academic Search

    Jennifer Ellis-Newman; Peter Robinson

    1998-01-01

    Activity-based costing (ABC) is a new costing method rapidly gaining favor over traditional costing systems. This article discusses the benefits of ABC to library managers and describes the steps involved in implementing ABC in an academic library.

  11. Activity-based Costing (ABC) and the Life Insurance Industry

    Microsoft Academic Search

    Mike Adams

    1996-01-01

    This paper describes the concept of activity-based costing (ABC) and examines its relevance to the life insurance industry. The paper contends that the high overheads and diversified product lines of many life insurance companies makes them appropriate environments within which to apply ABC. It is considered that ABC can provide at least three important benefits to a life insurance company,

  12. Stock market reactions to activity-based costing adoptions

    Microsoft Academic Search

    Lawrence A. Gordon; Katherine J. Silvester

    1999-01-01

    The use of activity-based costing (ABC) has been steadily, if not rapidly, spreading on an international level. This fact notwithstanding, the economic benefit associated with adopting ABC is suspect, at best. In an effort to shed additional light on this apparent dilemma, this paper empirically investigates the stock market effects of announcing the adoption of an ABC system. The research

  13. Activity based costing in manufacturing: two case studies on implementation

    Microsoft Academic Search

    Amrik S. Sohal; Walter W. C. Chung

    1998-01-01

    This paper presents two case studies on the implementation of activity based costing (ABC). The first case is a company based in Melbourne, Australia, which manufactures engineering components. The second case study is a specialty chemicals company based in Hong Kong. The case studies discuss the introduction of ABC and the benefits and problems experienced during implementation in each company.

  14. Implementation of activity-based costing in manufacturing

    Microsoft Academic Search

    A. Gunasekaran; M. Sarhadi

    1998-01-01

    This paper discusses the implementation issues of activity-based costing (ABC) in manufacturing. ABC has become an important aspect of manufacturing\\/service organizations striving for a major share in the international markets. New productivity and quality improvement strategies facilitate an increase in the awareness of ABC in present day manufacturing organizations and an appropriate framework for the management of productivity and quality.

  15. Cost measurement in laparoscopic surgery: results from an activity-based costing application

    Microsoft Academic Search

    Lino Cinquini; Paola Miolo Vitali; Arianna Pitzalis; Cristina Campanale

    2007-01-01

    Activity Based Costing (ABC) techniques are designed to support advanced cost analysis in different organizations. Centred on organization activities and processes, it provides more accurate cost information on cost objects using appropriate cost drivers and constitutes a powerful costing model to improve efficiency and effectiveness in delivering products and services. ABC can be successfully applied also in Health Care organizations,

  16. Cost Analysis of Prenatal Care Using the Activity-Based Costing Model: A Pilot Study

    PubMed Central

    Gesse, Theresa; Golembeski, Susan; Potter, Jonell

    1999-01-01

    The cost of prenatal care in a private nurse-midwifery practice was examined using the activity-based costing system. Findings suggest that the activities of the nurse-midwife (the health care provider) constitute the major cost driver of this practice and that the model of care and associated, time-related activities influence the cost. This pilot study information will be used in the development of a comparative study of prenatal care, client education, and self care. PMID:22945985

  17. Integrating the Cost of Secondary Support Activities into an Activity-Based Costing System

    Microsoft Academic Search

    Robert C. Kee; C. Michele Matherly

    2003-01-01

    This paper demonstrates how the cost of secondary support activities, those that provide service to other support and production activities, can be integrated into an activity-based costing (ABC) model. The reciprocal method is used to measure the quantity of a support activity's service needed to manufacture a product. This technique is consistent with the principles of ABC and extends ABC

  18. Sensitivity Analysis of Offshore Wind Cost of Energy (Poster)

    SciTech Connect

    Dykes, K.; Ning, A.; Graf, P.; Scott, G.; Damiami, R.; Hand, M.; Meadows, R.; Musial, W.; Moriarty, P.; Veers, P.

    2012-10-01

    No matter the source, offshore wind energy plant cost estimates are significantly higher than for land-based projects. For instance, a National Renewable Energy Laboratory (NREL) review on the 2010 cost of wind energy found baseline cost estimates for onshore wind energy systems to be 71 dollars per megawatt-hour ($/MWh), versus 225 $/MWh for offshore systems. There are many ways that innovation can be used to reduce the high costs of offshore wind energy. However, the use of such innovation impacts the cost of energy because of the highly coupled nature of the system. For example, the deployment of multimegawatt turbines can reduce the number of turbines, thereby reducing the operation and maintenance (O&M) costs associated with vessel acquisition and use. On the other hand, larger turbines may require more specialized vessels and infrastructure to perform the same operations, which could result in higher costs. To better understand the full impact of a design decision on offshore wind energy system performance and cost, a system analysis approach is needed. In 2011-2012, NREL began development of a wind energy systems engineering software tool to support offshore wind energy system analysis. The tool combines engineering and cost models to represent an entire offshore wind energy plant and to perform system cost sensitivity analysis and optimization. Initial results were collected by applying the tool to conduct a sensitivity analysis on a baseline offshore wind energy system using 5-MW and 6-MW NREL reference turbines. Results included information on rotor diameter, hub height, power rating, and maximum allowable tip speeds.

  19. Using activity-based costing to implement behavioural cost initiatives successfully

    Microsoft Academic Search

    Michael A. Kaszubski; Steve Ebben

    2004-01-01

    Continuing budget pressure is forcing facilities groups to re-think their current service delivery models and develop initiatives that reduce cost and increase efficiency. Making this task more difficult is the fact that many costs incurred by the facilities department are the result of behaviour patterns of non-facilities employees. To assist in this task one facilities organisation turned to activity-based costing

  20. Activity Based Costing as a method for assessing the economics of modularization a case study and beyond

    E-print Network

    Hansen, René Rydhof

    Activity Based Costing as a method for assessing the economics of modularization ­ a case study The paper accounts for an Activity Based Costing (ABC) analysis performed in a case company ­ Martin Group A................................................................................................ 6 3. Activity Based Costing (ABC

  1. Using simulation to benchmark traditional vs. activity-based costing in product mix decisions

    Microsoft Academic Search

    L. Leslie Gardner; Mary E. Grant; Laurie J. Rolston

    1994-01-01

    Activity-based costing is being promoted as the most effective method available for predicting costs associated with a variety of business decisions. This paper demonstrates its effectiveness in benchmark tests of activity-based costing versus traditional direct labor based costing in product mix decisions using a simulation model.

  2. Offshore maintenance reduces cost and downtime

    Microsoft Academic Search

    Danahy

    1983-01-01

    Maintenance is the single activity offshore that can have the most impact on productivity, safety, and downtime. Unfortunately, unless it is well organized, maintenance may be carried out according to unchanging and often unnecessary routines. Overly rigid maintenance procedures, that are viewed by crews as ''makework'' assignments, are not conducive to quality or to failure-proof operation of key rig systems.

  3. Costing Support Services in Universities: An Application of Activity-Based Costing

    Microsoft Academic Search

    Jenny Ellis-Newman; Haji Izan; Peter Robinson

    The emergence of Activity-Base d Costing (ABC) systems has been viewed by practitioners and researchers as the means by which management accounting can re-establish its relevance. While much of the implementation of ABC systems has occurred in manufacturing organisations, less attention has been devoted to the application of ABC to service organisations in either the private or public sectors. In

  4. A Procedure for Smooth Implementation of Activity Based Costing in Small Companies

    Microsoft Academic Search

    Narcyz Roztocki; Jorge F. Valenzuela; José D. Porter; Robin M. Monk; Kim LaScola Needy

    This paper describes a procedure that allows small companies to smoothly switch from a traditional costing system to an Activity Based Costing system at low risk and with minimal investment. The paper focuses on any type of small company (less than 100 employees) for which the standard implementation of Activity Based Costing is too expensive and complex. The implementation guide

  5. Filmless versus film-based systems in radiographic examination costs: an activity-based costing method

    PubMed Central

    2011-01-01

    Background Since the shift from a radiographic film-based system to that of a filmless system, the change in radiographic examination costs and costs structure have been undetermined. The activity-based costing (ABC) method measures the cost and performance of activities, resources, and cost objects. The purpose of this study is to identify the cost structure of a radiographic examination comparing a filmless system to that of a film-based system using the ABC method. Methods We calculated the costs of radiographic examinations for both a filmless and a film-based system, and assessed the costs or cost components by simulating radiographic examinations in a health clinic. The cost objects of the radiographic examinations included lumbar (six views), knee (three views), wrist (two views), and other. Indirect costs were allocated to cost objects using the ABC method. Results The costs of a radiographic examination using a filmless system are as follows: lumbar 2,085 yen; knee 1,599 yen; wrist 1,165 yen; and other 1,641 yen. The costs for a film-based system are: lumbar 3,407 yen; knee 2,257 yen; wrist 1,602 yen; and other 2,521 yen. The primary activities were "calling patient," "explanation of scan," "take photographs," and "aftercare" for both filmless and film-based systems. The cost of these activities cost represented 36.0% of the total cost for a filmless system and 23.6% of a film-based system. Conclusions The costs of radiographic examinations using a filmless system and a film-based system were calculated using the ABC method. Our results provide clear evidence that the filmless system is more effective than the film-based system in providing greater value services directly to patients. PMID:21961846

  6. Using relative profits as an alternative to activity-based costing

    Microsoft Academic Search

    Carsten Homburg

    2005-01-01

    Activity-based costing (ABC) tries to assign overhead costs to cost objects more accurately than traditional cost systems. However, due to its severe separability and proportionality assumptions using ABC for decision-making may lead to a considerable economic loss. To evaluate products on the basis of their activity-based costs, we therefore use a data envelopment analysis (DEA)-like approach which mainly separates the

  7. Application of a hybrid genetic algorithm and neural network approach in activity-based costing

    Microsoft Academic Search

    Kyoung-jae Kim; Ingoo Han

    2003-01-01

    Abstract Activity-based costing (ABC) has received extensive attention since it achieves improved accuracy in estimating costs, by using multiple cost drivers to trace the cost of activities to the products associated with the resources consumed by those activities. However, it has some problems. The first problem is that ABC does not have general criteria to select relevant cost drivers. Second,

  8. Activity-Based Costing and Its Application in a Turkish University Hospital

    Microsoft Academic Search

    Ay?e Necef Yereli

    2009-01-01

    Resource management in hospitals is of increasing importance in today's global economy. Traditional accounting systems have become inadequate for managing hospital resources and accurately determining service costs.Conversely, the activity-based costing approach to hospital accounting is an effective cost management model that determines costs and evaluates financial performance across departments. Obtaining costs that are more accurate can enable hospitals to analyze

  9. The Application of Activity-Based Costing in a Hong Kong Buffet Restaurant

    Microsoft Academic Search

    Carola Raab; Karl Mayer; Collin Ramdeen; Steve Ng

    2005-01-01

    Previous research has shown that Activity Based Costing is a feasible method for establishing overall menu profitability. In this study, a model for Activity Based Costing that had been applied to a fine dining restaurant was tested in a buffet style restaurant in Hong Kong, China. The outcome of this study indicates that the restaurant model could also be applied

  10. The Factors Effective in a Succeed Implementing Activity Based Costing and Management

    Microsoft Academic Search

    Ali Khozein

    2009-01-01

    Activity based costing\\/management system is one approach which its lunching and implementing in practice will bring advantages for the users. However, lake of knowledge to the ones leadings ineffectiveness of lunching and implementing activity based costing, budgeting and management systems will lead to wasting of financial and human sources in an organization. Organizations have no choice but rebuilding and recovering

  11. COMPARED ACTIVITY-BASED COSTING CASE STUDIES IN THE INFORMATION SYSTEM DEPARTMENTS OF TWO

    E-print Network

    Paris-Sud XI, Université de

    1 COMPARED ACTIVITY-BASED COSTING CASE STUDIES IN THE INFORMATION SYSTEM DEPARTMENTS OF TWO GROUPS developments to the field reality with two case studies. Key words: Strategic Management Accounting, Activity-Based Costing, Case Study hal-00505590,version1-25Jul2010 Author manuscript, published in "International

  12. The improvement of the quality management by the activity-based costing

    Microsoft Academic Search

    J. Michalska; D. Szewieczek

    Purpose: The aim of this paper is showing the activity-based costing. In this paper it was introduced the new method of analysing the costs. Design\\/methodology\\/approach: In the frames of own research it has been analysed the costs in the production process by using the method of the activity-based costing. Findings: On the basis of the own research it can be

  13. HOW ABC (ACTIVITY-BASED COSTING) CAN BE USED BY 3PL COMPANIES FOR PRICING PROFITABILITY

    Microsoft Academic Search

    A. Tassovali; Ch. Salikiriaki; P. Ketikidis

    In logistics management there is lack of accurate cost within the supply chain. In order to overcome this problem, companies shifted from traditional accounting systems to activity-based costing (ABC). Moreover, focusing on the pipeline, there is a need for the design of a logistics-oriented costing system. The particular paper constitutes an implementation of activity-based costing in a 3PL company and

  14. Lower cost offshore field development utilizing autonomous vehicles

    SciTech Connect

    Frisbie, F.R.; Vie, K.J.; Welch, D.W.

    1996-12-31

    The offshore oil and gas industry has the requirement to inspect offshore oil and gas pipelines for scour, corrosion and damage as well as inspect and intervene on satellite production facilities. This task is currently performed with Remotely Operated Vehicles (ROV) operated from dynamically positioned (DP) offshore supply or diving support boats. Currently, these tasks are expensive due to the high day rates for DP ships and the slow, umbilical impeded, 1 knot inspection rates of the tethered ROVs, Emerging Autonomous Undersea Vehicle (AUV) technologies offer opportunities to perform these same inspection tasks for 50--75% lower cost, with comparable or improved quality. The new generation LAPV (Linked Autonomous Power Vehicles) will operate from fixed facilities such as TLPs or FPFs and cover an operating field 10 kms in diameter.

  15. Offshore maintenance reduces cost and downtime

    SciTech Connect

    Danahy, J.W.

    1983-08-01

    Maintenance is the single activity offshore that can have the most impact on productivity, safety, and downtime. Unfortunately, unless it is well organized, maintenance may be carried out according to unchanging and often unnecessary routines. Overly rigid maintenance procedures, that are viewed by crews as ''makework'' assignments, are not conducive to quality or to failure-proof operation of key rig systems. An alternate system of maintenance, which Keydril has adopted on all its rigs, is designed to circumvent the problems of crew attitude and at the same time provide an effective preventive program that simply and efficiently manages all of the rig's operational requirements. The program consists of detailed maintenance and test procedures which are based on frequency analyses of the operating profiles of each piece of machinery. Keydril calls the program an Engineered Approach to Maintenance. The heart of the engineered approach system is a color-coded visual display of maintenance requirement cards (T-cards). These cards assign and describe specific tasks according to an analysis of the operating history of the unit itself and analyses of similar equipment on other company rigs. The second part of the engineered system is the use of high-technology testing methods that can remotely analyze various operating parameters and give early warning of equipment wear prior to failure. The equipment on board Keydril's rigs must be used, and rig personnel have to know that it will always work at satisfactory performance levels. The engineered approach to maintenance provides that assurance.

  16. AN APPLICATION OF ACTIVITY BASED COSTING IN THE AIR CONDITIONER MANUFACTURING INDUSTRY

    Microsoft Academic Search

    Heather Nachtmann; Mohammad Hani Al-Rifai

    2004-01-01

    AIRCO is a manufacturer of industrial air conditioner units whose management is concerned that their current traditional cost accounting (TCA) system is not accurately representing their product cost behavior. Under certain operating conditions, an activity based costing (ABC) system can provide relevant and accurate indirect cost information that assists in making customer, product, and process improvement decisions. An ABC system

  17. Application of discrete event simulation to the activity based costing of manufacturing systems

    Microsoft Academic Search

    T. A. Spedding; G. Q. Sun

    1999-01-01

    In the last two decades traditional cost accounting practices have been unable to respond to the changing information needs of manufacturing management. Activity Based Costing (ABC) is a method which can solve many of the limitations of traditional cost systems. This method of accounting involves the breaking down of the individual activities and costing of the amount of time spent

  18. Parametric cost modeling of an activity based proposal for a system of systems

    Microsoft Academic Search

    G. Filippazzo

    2005-01-01

    Parametrics are often needed to model systems for which a cost estimate has been obtained by using an activity based bottom up approach (essentially adding single work breakdown structure (WBS) elements to obtain the total cost of the program\\/project). In order to properly compare the cost estimates obtained from a parametric model to the cost estimates obtained from a bottom

  19. Activity-based cost management for design and development stage

    Microsoft Academic Search

    David Ben-Arieh; Li Qian

    2003-01-01

    The fierce global competition in the international markets forces manufacturers to compete in quality, cost, and the time to market aspects of their products. Knowing the cost of the manufactured components is essential for efficient operation and competitive production.The current evolution of competitive manufacturing requires a shorter market life span of products—emphasizing the design and development phase of the product

  20. Corporate cost of occupational accidents: an activity-based analysis

    Microsoft Academic Search

    Pall M. Rikhardsson; Martin Impgaard

    2004-01-01

    The systematic accident cost analysis (SACA) project was carried out during 2001 by The Aarhus School of Business and PricewaterhouseCoopers Denmark with financial support from The Danish National Working Environment Authority. Its focused on developing and testing a method for evaluating occupational costs of companies for use by occupational health and safety professionals. The method was tested in nine Danish

  1. Application Research on the Activity-Based Costing of Value Chain Accounting

    Microsoft Academic Search

    Guang Cheng

    2009-01-01

    As the development of traditional cost theory, Activity-Based costing (ABC), the integration of cost management and enterprise value-chain, give us a new view to re-consider how to reduce the cost. Comparing with traditional cost management methods, the Value Chain Accounting (VCA)-based ABC extends the scope of cost control and optimizes the value chain through budgeting, decision-making, controlling and evaluating. The

  2. Activity-based costing and process modeling for cost-conscious product design: A case study in a manufacturing company

    Microsoft Academic Search

    Katja Tornberg; Miikka Jämsen; Jari Paranko

    2002-01-01

    The most effective way to control costs is to design them out of the products. However, cost data is rarely available for product designers in a usable form. The aim of this study was to investigate the possibilities of activity-based costing and the modeling of design, purchasing and manufacturing processes in providing useful cost information for product designers. The hypothesis

  3. Using activity-based costing to reengineer the reverse logistics channel

    Microsoft Academic Search

    Thomas J. Goldsby; David J. Closs

    2000-01-01

    Activity-based costing (ABC) is a tool used by managers to more closely approximate the “true costs” of operations. The application of ABC in logistics is more commonplace today than just a few years ago, though still far short of universal. Sound tracking of operational costs is critical when pursuing the logistics objective of providing desired customer service at the lowest

  4. Menu engineering and activity-based costing – can they work together in a restaurant?

    Microsoft Academic Search

    Carola Raab; Karl Mayer

    2007-01-01

    Purpose – This research paper aims to examine whether using menu engineering (ME) together with activity-based costing (ABC) for menu analysis gives new insights about true menu profitability. The traditional ME approach only uses food cost to determine the contribution margin of individual menu items. This combined approach uses both food and traceable operating costs to estimate contribution margins more

  5. Application of activity-based costing to a land transportation company: A case study

    Microsoft Academic Search

    Adil Baykaso?lu; Vahit Kaplano?lu

    2008-01-01

    Although there are many studies in the literature that explain modern costing approaches including activity-based costing (ABC), the number of studies that present real life applications is very few. This is especially true for logistics and transportation applications. One of the main difficulties in land transportation companies is to determine and evaluate true cost of their operations and services. If

  6. Activity-based cost estimation in a push\\/pull advanced manufacturing system

    Microsoft Academic Search

    M. Özbayrak; M. Akgün; A. K. Türker

    2004-01-01

    The objective of this paper is to estimate the manufacturing and product costs by using activity-based costing (ABC) method in an advanced manufacturing system that is run under either material requirements planning (MRP) or just in time (JIT) system. ABC is a method that can overcome many of the limitations of traditional costing systems. This paper reports and discusses the

  7. The use of simulation in activity-based costing for flexible manufacturing systems

    Microsoft Academic Search

    Soemon Takakuwa

    1997-01-01

    A framework to design simulation models is described in order to perform activity-based costing for flexible manufacturing systems before actual manufacturing activities. For illustrating a procedure to perform activity-based costing, analysis of the random-access type of the flexible manufacturing system (FMS) is performed from both efficient and economic standpoints, by simulating. The flexible manufacturing system considered in this paper consists

  8. Evaluating Multiple Feature-Based Machining Methods Using an Activity-Based Cost Analysis Model

    Microsoft Academic Search

    Y.-J. Tseng; B. C. Jiang

    2000-01-01

    For a designed part, if different sets of features are used for machining, the manufacturing costs may vary. In this research,\\u000a the different manufacturing costs for the different feature-based machining methods are analyzed using an activity-based cost\\u000a model. First, the activities required for machining a set of features are analyzed. Second, the activity-related cost for\\u000a each activity is evaluated based

  9. On the applicability of activity based costing as a planning instrument

    Microsoft Academic Search

    Ch. Schneeweiss

    1998-01-01

    Activity based costing (ABC) attempts to measure the impact of overhead costs. It thus seeks to support decisions that optimally allocate overhead capacities. To evaluate the applicability of ABC as a planning instrument, we discuss the allocation of capacities within the broad framework of production-investment models for which ABC can be considered as a simple approximation. For various parameter settings

  10. Strategic investment analysis using activity based costing concepts and analytical hierarchy process techniques

    Microsoft Academic Search

    D. I. ANGELIS; C.-Y. LEE

    1996-01-01

    An increasing number of organizations are using Activity Based Costing (ABC) to gain insight into manufacturing activities and processes as well as product costing. The natural logic of ABC can also be applied to strategic decisions. This paper presents a methodology that ties investment decisions to ABC concepts using the Analytical Hierarchy Process (AHP). By using AHP, both monetary and

  11. The integration of activity based costing and enterprise modeling for reengineering purposes

    Microsoft Academic Search

    I. P. Tatsiopoulos; N. Panayiotou

    2000-01-01

    This paper describes an approach to integrate the Activity Based Costing (ABC) technique within the framework of GRAI Integrated Methodology (GIM) in order to assist business process reengineering justification and evaluation. The first step of integration is to have ABC adopt cost pools and lists of activities derived from GIM process modeling. Further on ABC is involved in two stages

  12. The Application of Activity-based Costing in the United Kingdom's Largest Financial Institutions

    Microsoft Academic Search

    Innes John; Mitchell Falconer

    1997-01-01

    Activity-based costing (ABC) has come to prominence in recent years as an attractive alternative to conventional costing systems. Its development has involved many service sector applications and its use throughout the core management accounting areas of decision making, control and performance measurement. This article contains the results of a 1994 survey of the UK's largest financial institutions to ascertain the

  13. Exploring the Use of Activity Based Costing in the Restaurant Industry

    Microsoft Academic Search

    Carola Raab; Karl J. Mayer

    2004-01-01

    Traditional cost accounting systems have been replaced in recent years in the manufacturing sector by Activity Based Costing (ABC) systems. In spite of this trend in manufacturing, ABC systems have made few inroads in the services and hospitality sector, particularly in the restaurant industry. In this study, restaurant controllers in the United States were surveyed to identify their knowledge about,

  14. A BUSINESS SIMULATION APPROACH TO ACTIVITY-BASED COSTING METHODS IN THE CLASSROOM

    Microsoft Academic Search

    David S. Harrison

    Activity-Based Costing (ABC) is taught in accounting texts, and successfully used in many global businesses. Although ABC is really only a somewhat simplified extension of more basic overhead costing methods, which are usually understood by most students without much trouble, often many of these same students have trouble with ABC. I use an interactive, business simulation, my ABC game, to

  15. Activity-Based Costing in User Services of an Academic Library.

    ERIC Educational Resources Information Center

    Ellis-Newman, Jennifer

    2003-01-01

    The rationale for using Activity-Based Costing (ABC) in a library is to allocate indirect costs to products and services based on the factors that most influence them. This paper discusses the benefits of ABC to library managers and explains the steps involved in implementing ABC in the user services area of an Australian academic library.…

  16. Developing an activity-based costing approach for system development and implementation

    Microsoft Academic Search

    Ginny Ooi; Christina Soh

    2003-01-01

    This paper proposes the use of the Activity Based Costing (ABC) approach to software estimation. Like other more traditional approaches to software estimation, ABC provides man-day estimates. In addition, it also provides detailed costing information that is useful for management control and decision making. The paper shows how the ABC approach can be applied to software estimation by building an

  17. INTEGRATING ACTIVITY-BASED COSTING AND ECONOMIC VALUE ADDED IN MANUFACTURING

    Microsoft Academic Search

    Narcyz Roztocki; Kim LaScola Needy

    This article presents a cost and performance measurement system that integrates activity-based costing (ABC) with the economic value added financial performance measure. This proposed ABC-and-EVA system is a management support tool for managing cost and capital. The integrated ABC-and-EVA system includes the rate of resource consumption (as in a traditional ABC system), but it also includes capital demand. A traditional

  18. THE INTEGRATED ACTIVITY-BASED COSTING AND ECONOMIC VALUE ADDED INFORMATION SYSTEM

    Microsoft Academic Search

    Narcyz Roztocki

    This paper examines the implementation of an integrated Activity-Based Costing and Economic Value Added system, using a database approach. The proposed database approach allows the creation of a costing and performance measure system which provides decision-makers with up-to-date, complete, and reliable cost information. The steps for designing and implementing this integrated information system are illustrated with data from a real

  19. Towards the use of ontologies for activity-based costing in healthcare organizations.

    PubMed

    Kumar, Anand

    2006-01-01

    Activity-based costing is a methodology which provides a basis for healthcare cost optimization. A robust formal representation of such activities is needed in order to be able to draw inferences as to the costs involved in a reliable manner. An introduction to the basic ontological distinctions involved in such a representation and to the complications one faces in carrying out the task is presented in this paper. PMID:17108573

  20. Repairing an offshore jacket structure proves cost effective

    SciTech Connect

    Still, J.R.; Blackwood, V.

    2000-05-01

    During inclement weather in the southern North Sea, an off-shore supply boat collided with a 25-year-old gas production platform. The impact occurred just over 2 m (5.56 ft) from the lowest annual tide and was sufficient to buckle, then shear, one end of a horizontal bracing from the jacket leg and to cause further damage at a node joint. Inspection personnel performed an initial examination of the damage to the eight-leg jacket structure using rope access techniques (abseiling), which offered substantial cost saving over erecting scaffolding. A structural analysis confirmed the jacket's integrity was not impaired and loss of the horizontal bracing would not significantly affect the structure. The analysis also confirmed repair of the node weld cracks and of the sheared area on the leg should be performed as soon as practical. In the end, the repair went smoothly. The repair area was above the waterline, and the weather cooperated perfectly. The repairs were done using rope access techniques, and using austenitic electrodes reduced the possibility of HAZ hydrogen cracking. Nondestructive examination confirmed no cracking had been experienced and no other defects existed. Indeed, this methodology is considered extremely practical, cost effective and ideal for use on offshore structures--with damage close to the waterline, and with the need to execute immediate repairs.

  1. Implementation of an activity-based costing system in a small manufacturing company

    Microsoft Academic Search

    A. BHARARA; C.-Y. LEE

    1996-01-01

    This paper describes the implementation of an Activity-Based Costing (ABC) system in a small, high-technology medical device manufacturing company. We have made an attempt to discuss the problems faced in this endeavour and possible solutions to those problems. This paper demonstrates the benefits derived by implementation of an ABC system in a small manufacturing company. It is also shown that

  2. Justification and implementation of activity based costing in small and medium-sized enterprises

    Microsoft Academic Search

    A. Gunasekaran; H. B. Marri; R. J. Grieve

    1999-01-01

    There is a potential to improve the overall performance of SMEs and hence their competitiveness. Activity based costing (ABC) is gaining importance in organizations that are aiming for a major share in business by improving productivity and quality. However, ABC has received little attention from SMEs in spite of the fact that it has an important role to play in

  3. Design of activity-based costing in a small company: A case study

    Microsoft Academic Search

    D. Singh

    1999-01-01

    Activity-Based Costing (ABC) has been successful in large scale industries for improving the operational performance by providing appropriate and accurate information on the consumption of resources. However, ABC has not received a significant attention from small companies inspite of the fact that it has an important role to play in improving the performance of them. Realizing the application of ABC

  4. The impact of contextual and process factors on the evaluation of activity-based costing systems

    Microsoft Academic Search

    Shannon W. Anderson; S. Mark Young

    1999-01-01

    This paper investigates associations between evaluations of activity based costing (ABC) systems, contextual factors, and factors related to the ABC implementation process using interview and survey data from 21 field research sites of two firms. Structural equation modeling is used to investigate the fit of a model of organizational change with the data. The results support the proposed model; however,

  5. The association between activity-based costing and improvement in financial performance

    Microsoft Academic Search

    Douglass Cagwin; Marinus J Bouwman

    2002-01-01

    This study investigates the improvement in financial performance that is associated with the use of activity-based costing (ABC), and the conditions under which such improvement is achieved. Internal auditors furnish information regarding company financial performance, extent of ABC usage, and enabling conditions that have been identified in the literature as affecting ABC efficacy. Confirmatory factor analysis and structural equation modelling

  6. Towards explaining activity-based costing failure: accounting and control in a decentralized organization

    Microsoft Academic Search

    Teemu Malmi

    1997-01-01

    Many of the activity-based costing (ABC) systems introduced in recent years are said to fail (e.g. Cooperet al., 1992; Argyris and Kaplan, 1994; Shields, 1995; Roberts and Silvester, 1996). The use of ABC for surveillance by the group management, with no consequent actions, leads us to propose that claims on ABC failure result, in part, from assessing the use and

  7. The implementation of Activity-Based Costing in China: An innovation action research approach

    Microsoft Academic Search

    Lana Y. J. Liu; Fei Pan

    2007-01-01

    Research on Activity-Based Costing and its applications has mainly been focused on organisations in developed countries. Little has been learnt as to whether ABC techniques can be implemented successfully in organisations in developing countries. With the adoption of an innovation action research approach, we have successfully developed an ABC system jointly with a large Chinese manufacturing company, Xu Ji Electric

  8. ACTIVITY-BASED COSTING IN IRELAND: BARRIERS TO, AND OPPORTUNITIES FOR, CHANGE

    Microsoft Academic Search

    Peter J. CLlarke; Nancy Thorley Hill; Kevin Stevens

    1999-01-01

    This paper considers the state of managerial accounting in Ireland and argues that it is “marginalised”. As evidence, the study examines the adoption of one innovative technique, Activity-Based Costing (ABC), in Ireland and reports that the rate of adoption is lower in Ireland than in Anglo-American countries. This is a puzzling phenomenon given that management accounting practices such as ABC

  9. The Impact of Activity Based Costing in Managing the Financial Performance of a University Department

    Microsoft Academic Search

    Victoria Whelan

    The financial management of University Departments is increasingly complex with the intensity of competitive forces for student enrolments and for resource allocation. Departments need to provide detailed information on the contribution of their outputs for strategic planning and for resourcing decisions. The recent introduction of Activity Based Costing (ABC) has enabled a greater focus on the identification and analysis of

  10. Extending Institutional Analysis through Theoretical Triangulation: Regulation and Activity-Based Costing in Portuguese Telecommunications

    Microsoft Academic Search

    Trevor Hopper; Maria Major

    2007-01-01

    This paper examines why a Portuguese telecommunications company – Marconi – adopted activity-based costing (ABC). The focus lies in new institutional sociology (NIS), particularly the institutional change model of Dillard et al. (Accounting, Auditing and Accountability Journal, 17(4), pp. 506–542, 2004), supplemented by theoretical triangulation involving economic, labour process and actor network theories to enrich observations and extend theory. Why

  11. SHOULD ACTIVITY-BASED COSTING OR THE BALANCED SCORECARD DRIVE THE UNIVERSITY STRATEGY FOR CONTINUOUS IMPROVEMENT?

    Microsoft Academic Search

    Over the last decade accountability, including balancing the budget in higher education, has become a challenging issue. Increasingly, institutions of higher learning have had to come up with a model for efficiently managing their university. The purpose of this paper is to outline the application of the activity-based costing (ABC) concept and the balanced scorecard (BSC) approach including the debate

  12. Activity-Based Cost Management Part II: Applied to a Respiratory Protection Program

    Microsoft Academic Search

    Michael T. Brandt; Steven P. Levine; Dean G. Smith; Harry J. Ettinger; Bradford F. Gallimore

    1998-01-01

    To demonstrate the relevance of activity-based cost management (ABCM) for the occupational and environmental health community, the investigators used data generated by an ABCM model of a respiratory protection program (RPP) to develop options for solving a business problem. The RPP manager in this hypothetical but realistic business scenario is faced with a 25% budget cut and a 10% increase

  13. Activity Based Costing: Success is in the Eye of the Beholder

    Microsoft Academic Search

    Kim Soin

    Abstract The literature on Activity Based Costing (ABC) tends to define the ‘success’ of an ABC system in relation to the decision-making and strategy formulating opportunities it provides based on the ‘logic’ or technical attributes of ABC (Shields, 1995; Malmi, 1997). This paper argues that there is a logic of ABC and tries to identify and illustrate how people relate

  14. Activity-based costing\\/management and its implications for operations management

    Microsoft Academic Search

    M Gupta; K Galloway

    2003-01-01

    Activity-Based Costing\\/Management (ABC\\/M) is an Information System developed in the 1980s to overcome some of the limitations of traditional cost accounting and to enhance its usefulness to strategic decision-making. In this paper, we show how an ABC\\/M system can serve as a useful information system to support effective operations decision-making processes. We propose a conceptual framework, Operations Hexagon, to discuss

  15. Developments: Activity-Based Costing in Universities—Five Years On

    Microsoft Academic Search

    Paul Cropper; Roger Cook

    2000-01-01

    This article describes the current state of costing within the higher education sector, reviewing recent published literature and analysing the progress made by institutions in implementing activity-based costing (ABC). It draws on the findings of two cross-sectional surveys of all UK universities, undertaken in 1993 and 1998\\/99. The data collected suggests that while implementation of ABC systems has been slow,

  16. Technological and organizational influences on the adoption of activity-based costing in Australia

    Microsoft Academic Search

    David A. Brown; Peter Booth; Francesco Giacobbe

    2004-01-01

    AbstractThe present paper examines one set of potential reasons for the paradox as to why so few firms have adopted activity-based costing (ABC) despite the demonstrated benefits of this costing system. A cross-sectional survey of Australian firms is used to examine the influence of seven technological and organizational factors on firms’ initial interest in ABC and their decision to adopt

  17. Extending Simulation Modeling to Activity-Based Costing for Clinical Procedures

    Microsoft Academic Search

    Noah D. Glick; C. Craig Blackmore; William N. Zelman

    2000-01-01

    A simulation model was developed to measure costs in an Emergency Department setting for patients presenting with possible cervical-spine injury who needed radiological imaging. Simulation, a tool widely used to account for process variability but typically focused on utilization and throughput analysis, is being introduced here as a realistic means to perform an activity-based-costing (ABC) analysis, because traditional ABC methods

  18. Activity-based life-cycle costing in long-range planning

    Microsoft Academic Search

    Edilberto J. Rodríguez Rivero; Jan Emblemsvåg

    2007-01-01

    Purpose – The aim of the paper is to present and illustrate a new approach for long-range planning. Design\\/methodology\\/approach – Building on well-tested frameworks such as activity-based costing (ABC), life-cycle costing (LCC) and Monte Carlo methods as well as earlier case studies, an approach is developed further and tested using a real-life case. Findings – The effectiveness of the approach

  19. Using the Integrated Activity-Based Costing and Economic Value Added Information System for Project Management

    Microsoft Academic Search

    Narcyz Roztocki

    2001-01-01

    This paper examines the use of the Integrated ABC-and-EVA Information System for the management of new technology projects. The advantages of integrating the Activity-Based Costing system with the Economic Value Added financial performance measure and the positive impacts of this integration on project costing are presented. The effect of the Integrated Information System on overall project performance is discussed. Finally,

  20. THE ROLE OF ACTIVITY BASED BUDGETING ON TARGET COSTING PRACTICES FAALYET TABANLI BÜTÇELEMENN HEDEF MALYETLEME UYGULAMALARI ÜZERNDEKETKS

    Microsoft Academic Search

    Süleyman Demirel Üniversitesi

    This paper aims to analyze the effects of classical (volume-based) and activity based budgeting approaches on target costing practices via a hypothetical application. Also, it is assumed that preferring activity based budgeting rather than the classical one will increase the probability of success of target costing practices. The underlying logical base of this assumption is that in target costing, the

  1. Product Costing: A Comparison of Conventional and Activity-based Costing Methods

    Microsoft Academic Search

    M. S. HUNDAL

    1997-01-01

    Product costs are calculated by many different departments in a company: cost engineering, industrial engineering, design, manufacturing, etc. The aims of these groups, the methods used by them and the uses to which their results are put are different. Cost engineering provides cost estimates based on finished designs. Industrial\\/manufacturing engineering groups calculate costs with a high emphasis on processing costs.

  2. Survey research on activity-based costing: a reply to Dugdale and Jones

    Microsoft Academic Search

    J. Innes; F. Mitchell

    1997-01-01

    In January 1996 we responded positively to a request by David Dugdale for assistance in accessing 14 respondents to our postal questionnaire survey of activity-based costing (ABC) in the U.K.'s largest companies (Innes and Mitchell, 1995). While the survey covered a broad range of ABC applications these respondents were the only ones who had stated that their firms had used

  3. Building an activity-based costing hospital model using quality function deployment and benchmarking

    Microsoft Academic Search

    Marvin E. González; Gioconda Quesada; Rhonda Mack; Ignacio Urrutia

    2005-01-01

    Purpose – To use quality function deployment (QFD)\\/benchmarking for building an optimal activity-based costing (ABC) model using baseline information from five different Spanish hospitals. Design\\/methodology\\/approach – The customer satisfaction benchmarking process in QFD is discussed along with the benefits of hierarchical benchmarks in specifying areas of strategic competition and the logically ensuing product\\/service strategic decision-making requirements. A case study is

  4. The implementation of an activity-based costing collaborative planning system for semiconductor backend production

    Microsoft Academic Search

    H.-P. Hsu; C.-T. Su

    2005-01-01

    While the market turns to an environment with low profit margins for semiconductor backend operations, it is hard for an independent firm to survive today. Forming strategic alliances or integrating an enterprise's internal firms by means of collaborative planning\\/operations to gain competitive advantage is inevitable. This paper presents the development of an activity-based costing collaborative production planning system (ABC\\/CPPS) to

  5. The development of activity-based costing journal literature, 1987-2000

    Microsoft Academic Search

    Trond Bjørnenak; Falconer Mitchell

    2002-01-01

    This paper contains an analysis of the activity-based costing (ABC) literature which has been accumulated in the UK and USA accounting journals over the fourteen-year period since the first articles on ABC emerged. This evidence is used both longitudinally and cross-sectionally to gain insights into how ABC started, how it has been communicated, how it has been researched, how it

  6. Operations Assessment of Launch Vehicle Architectures using Activity Based Cost Models

    NASA Technical Reports Server (NTRS)

    Ruiz-Torres, Alex J.; McCleskey, Carey

    2000-01-01

    The growing emphasis on affordability for space transportation systems requires the assessment of new space vehicles for all life cycle activities, from design and development, through manufacturing and operations. This paper addresses the operational assessment of launch vehicles, focusing on modeling the ground support requirements of a vehicle architecture, and estimating the resulting costs and flight rate. This paper proposes the use of Activity Based Costing (ABC) modeling for this assessment. The model uses expert knowledge to determine the activities, the activity times and the activity costs based on vehicle design characteristics. The approach provides several advantages to current approaches to vehicle architecture assessment including easier validation and allowing vehicle designers to understand the cost and cycle time drivers.

  7. Activity based costing of diagnostic procedures at a nuclear medicine center of a tertiary care hospital

    PubMed Central

    Hada, Mahesh Singh; Chakravarty, Abhijit; Mukherjee, Partha

    2014-01-01

    Context: Escalating health care expenses pose a new challenge to the health care environment of becoming more cost-effective. There is an urgent need for more accurate data on the costs of health care procedures. Demographic changes, changing morbidity profile, and the rising impact of noncommunicable diseases are emphasizing the role of nuclear medicine (NM) in the future health care environment. However, the impact of emerging disease load and stagnant resource availability needs to be balanced by a strategic drive towards optimal utilization of available healthcare resources. Aim: The aim was to ascertain the cost of diagnostic procedures conducted at the NM Department of a tertiary health care facility by employing activity based costing (ABC) method. Materials and Methods: A descriptive cross-sectional study was carried out over a period of 1 year. ABC methodology was utilized for ascertaining unit cost of different diagnostic procedures and such costs were compared with prevalent market rates for estimating cost effectiveness of the department being studied. Results: The cost per unit procedure for various procedures varied from Rs. 869 (USD 14.48) for a thyroid scan to Rs. 11230 (USD 187.16) for a meta-iodo-benzyl-guanidine (MIBG) scan, the most cost-effective investigations being the stress thallium, technetium-99 m myocardial perfusion imaging (MPI) and MIBG scan. The costs obtained from this study were observed to be competitive when compared to prevalent market rates. Conclusion: ABC methodology provides precise costing inputs and should be used for all future costing studies in NM Departments. PMID:25400363

  8. A technical note on using work sampling to estimate the effort on activities under activity-based costing

    Microsoft Academic Search

    Wen-Hsien Tsai

    1996-01-01

    Activity-based costing (ABC) assumes that activities consume resources and products consume activities. It uses the two-stage procedure to calculate the product costs: it traces the resource costs to the activities, and then traces the costs of activities to the products. In the current practice for first-stage cost assignment, effort (labor) costs are traced to the activities by the estimates of

  9. Using the analytic hierarchy process and multi-objective programming for the selection of cost drivers in activity-based costing

    Microsoft Academic Search

    Marc J. Schniederjans; Tim Garvin

    1997-01-01

    Activity-Based Costing (ABC) makes use of multiple cost drivers. The selection of these cost drivers from a set of candidate cost drivers can pose a difficult selection problem. This paper proposes the use of the Analytic Hierarchy Process (AHP) and a multi-objective programming methodology as aids in making cost driver selections. A demonstration of the application of these methodologies in

  10. Performance measurement: integrating quality management and activity-based cost management.

    PubMed

    McKeon, T

    1996-04-01

    The development of an activity-based management system provides a framework for developing performance measures integral to quality and cost management. Performance measures that cross operational boundaries and embrace core processes provide a mechanism to evaluate operational results related to strategic intention and internal and external customers. The author discusses this measurement process that allows managers to evaluate where they are and where they want to be, and to set a course of action that closes the gap between the two. PMID:8774472

  11. The use of activity-based cost estimation as a management tool for cultural change

    NASA Technical Reports Server (NTRS)

    Mandell, Humboldt; Bilby, Curt

    1991-01-01

    It will be shown that the greatest barrier to American exploration of the planet Mars is not the development of the technology needed to deliver humans and return them safely to earth. Neither is it the cost of such an undertaking, as has been previously suggested, although certainly, such a venture may not be inexpensive by some measures. The predicted costs of exploration have discouraged serious political dialog on the subject. And, in fact, even optimistic projections of the NASA budget do not contain the resources required, under the existing development and management paradigm, for human space exploration programs. It will be demonstrated that the perception of the costs of such a venture, and the cultural responses to the perceptions are factors inhibiting American exploration of the moon and the planet Mars. Cost models employed in the aerospace industry today correctly mirror the history of past space programs, and as such, are representative of the existing management and development paradigms. However, if, under this current paradigm no major exploration programs are feasible, then cost analysis methods based in the past may not have great utility in exploring the needed cultural changes. This paper explores the use of a new type of model, the activity based cost model, which will treat management style as an input variable, in a sense providing a tool whereby a complete, affordable program might be designed, including both the technological and management aspects.

  12. Time-Driven Activity-Based Costing for InterLibrary Services: A Case Study in a University

    Microsoft Academic Search

    Eli Pernot; Filip Roodhooft; Alexandra Van den Abbeele

    2007-01-01

    Although the true costs of inter-library loans (ILL) are unknown, universities increasingly rely on them to provide better library services at lower costs. Through a case study, we show how to perform a time-driven activity-based costing analysis of ILL and provide evidence of the benefits of such an analysis.

  13. Time-Driven Activity-Based Costing for Inter-Library Services: A Case Study in a University

    ERIC Educational Resources Information Center

    Pernot, Eli; Roodhooft, Filip; Van den Abbeele, Alexandra

    2007-01-01

    Although the true costs of inter-library loans (ILL) are unknown, universities increasingly rely on them to provide better library services at lower costs. Through a case study, we show how to perform a time-driven activity-based costing analysis of ILL and provide evidence of the benefits of such an analysis.

  14. Activity-based costing as a method for assessing the economics of modularization—A case study and beyond

    Microsoft Academic Search

    Jesper Thyssen; Poul Israelsen; Brian Jørgensen

    2006-01-01

    The paper accounts for an Activity-Based Costing (ABC) analysis supporting decision-making concerning product modularity. The ABC analysis carried out is communicated to decision-makers by telling how much higher the variable cost of the multi-purpose module can be compared to the average variable cost for the product-unique modules that it substitutes to break even in total cost. The analysis provides the

  15. Contrast-enhanced MR angiography vs intra-arterial digital subtraction angiography for carotid imaging: activity-based cost analysis

    Microsoft Academic Search

    JeanMarie U-King-Im; William Hollingworth; Rikin A. Trivedi; Justin J. Cross; Nicholas J. Higgins; Martin J. Graves; Peter J. Kirkpatrick; Nagui M. Antoun; Jonathan H. Gillard

    2004-01-01

    The aim of this study was to compare the costs of performing contrast-enhanced MR angiography (CE MRA) with intra-arterial digital subtraction angiography (DSA) for the evaluation of carotid atherosclerotic disease. Activity-based cost analysis was used to identify the costs of performing each procedure. The variable direct costs of performing CE MRA and DSA were determined in 20 patients by using

  16. AN INTEGRATED ACTIVITY-BASED COSTING AND ECONOMIC VALUE ADDED SYSTEM AS AN ENGINEERING MANAGEMENT TOOL FOR MANUFACTURERS

    Microsoft Academic Search

    Narcyz Roztocki; Kim LaScola Needy

    This paper presents a cost and performance measurement system that integrates the Activity-Based Costing (ABC) method with the Economic Value Added value-based financial performance measure. This proposed ABC-and- EVA system is an engineering management tool that helps to successfully manage cost and capital. It allows enterprise leaders to create shareholder value through cost structure improvement. In the ABC-and-EVA system, the

  17. Time-driven activity-based costing in an outpatient clinic environment: development, relevance and managerial impact.

    PubMed

    Demeere, Nathalie; Stouthuysen, Kristof; Roodhooft, Filip

    2009-10-01

    Healthcare managers are continuously urged to provide better patient services at a lower cost. To cope with these cost pressures, healthcare management needs to improve its understanding of the relevant cost drivers. Through a case study, we show how to perform a time-driven activity-based costing of five outpatient clinic's departments and provide evidence of the benefits of such an analysis. PMID:19505741

  18. Strategic re-orientation of the chemical industry with activity-based costing under a value-oriented management system

    Microsoft Academic Search

    C. Lelke; S. Kress

    1999-01-01

    Summary form only given. Process organization, which has been under discussion since the mid-1980s, is now being implemented in practice and allows an integrated approach to value creation processes beyond the borders of corporate and functional areas. One of its most important tools is activity-based costing, a method which creates cost transparency even for indirect areas of overheads and which

  19. A Framework for Assessing Cost Management System Changes: The Case of Activity-Based Costing Implementation at General Motors, 1986-1993

    E-print Network

    Anderson, Shannon W.

    2002-09-10

    An opportunity to study the technical and organizational impact of management accounting system changes has emerged with companies' adoption of activity-based costing (ABC). This paper provides a structured account of ...

  20. Installation, Operation, and Maintenance Strategies to Reduce the Cost of Offshore Wind Energy

    SciTech Connect

    Maples, B.; Saur, G.; Hand, M.; van de Pieterman, R.; Obdam, T.

    2013-07-01

    Currently, installation, operation, and maintenance (IO&M) costs contribute approximately 30% to the LCOE of offshore wind plants. To reduce LCOE while ensuring safety, this paper identifies principal cost drivers associated with IO&M and quantifies their impacts on LCOE. The paper identifies technology improvement opportunities and provides a basis for evaluating innovative engineering and scientific concepts developed subsequently to the study. Through the completion of a case study, an optimum IO&M strategy for a hypothetical offshore wind project is identified.

  1. The Impact of Activity-Based Costing on Managerial Decisions at Insteel Industries-A Field Study

    Microsoft Academic Search

    V. G. Narayanan; Ratna G. Sarkar

    2002-01-01

    In this field-based study, we interview top- and middle-level managers at Insteel Industries and conduct statistical analysis of firm-level data in order to shed light on whether activity-based costing (ABC) provides new information to managers and whether activity-based management (ABM) significantly influences product and customer-related decisions. We find that after the ABC analysis, Insteel undertook a number of process improvements

  2. Critical analysis of the Hanford spent nuclear fuel project activity based cost estimate

    SciTech Connect

    Warren, R.N.

    1998-09-29

    In 1997, the SNFP developed a baseline change request (BCR) and submitted it to DOE-RL for approval. The schedule was formally evaluated to have a 19% probability of success [Williams, 1998]. In December 1997, DOE-RL Manager John Wagoner approved the BCR contingent upon a subsequent independent review of the new baseline. The SNFP took several actions during the first quarter of 1998 to prepare for the independent review. The project developed the Estimating Requirements and Implementation Guide [DESH, 1998] and trained cost account managers (CAMS) and other personnel involved in the estimating process in activity-based cost (ABC) estimating techniques. The SNFP then applied ABC estimating techniques to develop the basis for the December Baseline (DB) and documented that basis in Basis of Estimate (BOE) books. These BOEs were provided to DOE in April 1998. DOE commissioned Professional Analysis, Inc. (PAI) to perform a critical analysis (CA) of the DB. PAI`s review formally began on April 13. PAI performed the CA, provided three sets of findings to the SNFP contractor, and initiated reconciliation meetings. During the course of PAI`s review, DOE directed the SNFP to develop a new baseline with a higher probability of success. The contractor transmitted the new baseline, which is referred to as the High Probability Baseline (HPB), to DOE on April 15, 1998 [Williams, 1998]. The HPB was estimated to approach a 90% confidence level on the start of fuel movement [Williams, 1998]. This high probability resulted in an increased cost and a schedule extension. To implement the new baseline, the contractor initiated 26 BCRs with supporting BOES. PAI`s scope was revised on April 28 to add reviewing the HPB and the associated BCRs and BOES.

  3. The fragmented communication structure within the accounting academia: the case of activity-based costing research genres

    Microsoft Academic Search

    Kari Lukka; Markus Granlund

    2002-01-01

    The major purpose of this study is to examine the communication structures within the management accounting academia, with a view to illustrating and thereby possibly alleviating the difficulties of dialogue between the different discussion circles identifiable within the field. Research on activity-based costing (ABC) is used as an illustrating example case. We distinguish three genres of ABC research (Consulting research,

  4. Changing vessel routes could significantly reduce the cost of future offshore wind projects.

    PubMed

    Samoteskul, Kateryna; Firestone, Jeremy; Corbett, James; Callahan, John

    2014-08-01

    With the recent emphasis on offshore wind energy Coastal and Marine Spatial Planning (CMSP) has become one of the main frameworks used to plan and manage the increasingly complex web of ocean and coastal uses. As wind development becomes more prevalent, existing users of the ocean space, such as commercial shippers, will be compelled to share their historically open-access waters with these projects. Here, we demonstrate the utility of using cost-effectiveness analysis (CEA) to support siting decisions within a CMSP framework. In this study, we assume that large-scale offshore wind development will take place in the US Mid-Atlantic within the next decades. We then evaluate whether building projects nearshore or far from shore would be more cost-effective. Building projects nearshore is assumed to require rerouting of the commercial vessel traffic traveling between the US Mid-Atlantic ports by an average of 18.5 km per trip. We focus on less than 1500 transits by large deep-draft vessels. We estimate that over 29 years of the study, commercial shippers would incur an additional $0.2 billion (in 2012$) in direct and indirect costs. Building wind projects closer to shore where vessels used to transit would generate approximately $13.4 billion (in 2012$) in savings. Considering the large cost savings, modifying areas where vessels transit needs to be included in the portfolio of policies used to support the growth of the offshore wind industry in the US. PMID:24794388

  5. Extending landed cost models to improve offshore sourcing decisions

    Microsoft Academic Search

    Richard R. Young; Peter F. Swan; Evelyn A. Thomchick; Kusumal Ruamsook

    2009-01-01

    Purpose – The purpose of this paper is to identify the components required for more robust landed cost models given the now widespread interest in sourcing finished goods, components for assembly, and basic raw materials from global sources. This study also seeks to establish the need for broad-based participation in operationalizing such models. Design\\/methodology\\/approach – Interviews are conducted with several

  6. Activity-based costing in the U.K.’s largest companies: a comparison of 1994 and 1999 survey results

    Microsoft Academic Search

    Donald Sinclair; Falconer Mitchell

    2000-01-01

    This paper reviews the results of two U.K. surveys of activity-based costing (ABC) in the U.K.’s largest companies. These provide an opportunity to assess the changes that have occurred in the ABC adoption status of companies over a recent 5-year period. For the ABC users, some comparative information is provided on the nature of the ABC systems in use, their

  7. A comparative analysis of utilizing activity-based costing and the theory of constraints for making product-mix decisions

    Microsoft Academic Search

    Robert Kee; Charles Schmidt

    2000-01-01

    Activity-based costing (ABC) and the theory of constraints (TOC) represent alternative paradigms for evaluating the economic consequences of production-related decisions. However, their application can lead to contradictory product-mix decisions. To resolve this conflict, it is frequently suggested that the TOC is appropriate for the short run, while ABC is appropriate for the longer term. This paper models the selection of

  8. Customer profitability analysis with time-driven activity-based costing: a case study in a hotel

    Microsoft Academic Search

    Ilhan Dalci; Veyis Tanis; Levent Kosan

    2010-01-01

    Purpose – The purpose of this paper is to show the implementation of customer profitability analysis (CPA) using time-driven activity-based costing (TDABC), in a Turkish hotel. Design\\/methodology\\/approach – A case study was conducted in a four-star hotel with 100-room capacity in the Çukurova region of Turkey. Interviews, direct observations, and documentation collection were used to collect the data. Findings –

  9. An economic evaluation model for advanced manufacturing systems using activity-based costing

    Microsoft Academic Search

    Chan S. Park; Gyu-Tai Kim

    1995-01-01

    The development of traditional cost accounting (TCA) systems is based on the mass production of a mature product with known characteristics and a stable technology. In particular, the traditional investment decisions in manufacturing are made based on cost accounting data collected for the production setting given, where the cost structure and uncertainty (in demand, actual costs, or delivery times) are

  10. Activity-based costing simulation as a tool for construction process optimization 

    E-print Network

    Son, Junghye

    1999-01-01

    The goal of this research was to develop and illustrate a procedure to achieve time- cost optimization for a construction operation by finding the adequate crew configurations. The time-cost relationship in a construction ...

  11. Activity-based cost management in academic libraries - a project of the German Research Association

    Microsoft Academic Search

    Klaus Ceynowa

    2000-01-01

    In the context of the introduction of global budgeting, business management methods of control are gaining increasing importance in the academic sphere. Cost bearers are expecting from the universities a significant increase in the cost transparency of ser-vice provision particularly in the structuring of a university cost accounting system. For the field of academic libraries the German Research Association has

  12. An evaluation of activity-based costing and functional-based costing: A game-theoretic approach

    Microsoft Academic Search

    Shannon L. Charles; Don R. Hansen

    2008-01-01

    This study develops a theoretical product cost framework independent of cost assignment concepts. The framework is used in conjunction with cooperative game-theory concepts to develop constructs for evaluating the accuracy of competing cost systems. Cooperative game theory provides rational, non-arbitrary criteria for assigning joint benefits and defines two possible constructs; the set of imputations and the core. Using these two

  13. An Optimized Algorithm for Task Scheduling Based on Activity Based Costing in Cloud Computing

    Microsoft Academic Search

    Qi Cao; Zhi-Bo Wei; Wen-Mao Gong

    2009-01-01

    In cloud computing, traditional way for task scheduling cannot measure the cost of cloud resources accurately by reason that each of the tasks on cloud systems is totally different between each other. There may be no relationship between the overhead application base and the way that different tasks cause overhead costs of resources in cloud systems. The traditional way for

  14. Activity-based cost analysis in catheter-based angiography and interventional radiology

    Microsoft Academic Search

    R. Rautio; L. Keski-Nisula; T. Paakkala

    2003-01-01

    .  \\u000a The aim of this study was to analyse the costs of the interventional radiology unit and to identify the cost factors in the\\u000a different activities of catheter-based angiographies and interventional radiology. In 1999 the number of procedures in the\\u000a interventional radiological unit at Tampere University Hospital was 2968; 1601 of these were diagnostic angiographies, 526\\u000a endovascular and 841 nonvascular

  15. Parametric cost estimation based on activity-based costing: A case study for design and development of rotational parts

    Microsoft Academic Search

    Li Qian; David Ben-Arieh

    2008-01-01

    Modern manufacturing systems are facing a globally competitive market to an extent not experienced before. This competitive pressure forces manufacturers to produce more products with shorter life span and better quality, yet at a lower cost. To succeed in this environment, manufacturing firms need to have an accurate estimate of product design and development costs. This is especially important since

  16. An activity-based-parametric hybrid cost model to estimate the unit cost of a novel gas turbine component

    E-print Network

    Sóbester, András

    be estimated. The second tool is a scalable cost model that estimates the unit cost of future integrally bladed disc (blisk) designs which are used by the aerospace industry in gas turbine compressors. The tool blisk scaling rules. As the operation times often depend on the number of blades, the disc diameter

  17. On the connections among activity-based costing, mathematical programming models for analyzing strategic decisions, and the resource-based view of the firm

    Microsoft Academic Search

    Jeremy F. Shapiro

    1999-01-01

    This paper examines connections between data-driven models for analyzing a firm's strategic plans, which use activity-based costing and mathematical programming, and the resource-based view of the firm. After brief reviews of the three disciplines, extensions of activity-based costing methods to mathematical programming models for strategic resource planning are discussed. Applications of these models to supply chain planning in a multi-national

  18. Process-Based Governance in Public Administrations Using Activity-Based Costing

    Microsoft Academic Search

    Jörg Becker; Philipp Bergener; Michael Räckers

    2009-01-01

    Decision- and policy-makers in public administrations currently lack on missing relevant information for sufficient governance.\\u000a In Germany the introduction of New Public Management and double-entry accounting enable public administrations to get the\\u000a opportunity to use cost-centered accounting mechanisms to establish new governance mechanisms. Process modelling in this case\\u000a can be a useful instrument to help the public administrations decision- and

  19. Activity-Based Costing in Public Administrations: A Business Process Modeling Approach

    Microsoft Academic Search

    Jörg Becker; Philipp Bergener; Michael Räckers

    2010-01-01

    The traditional way of budgeting in public administrations is input-oriented; however, this system does not meet actual methods of efficient budget controlling as a mapping of output parameters. Due to challenges, such as the need for cost reduction because of decreasing tax revenues, pressure for controlling mechanisms is rising. Furthermore, Europe Pan-European directives foster process harmonization and introduction of IT-supported

  20. This is a preprint of the following article, which is available from http://mdolab.engin.umich.edu/content/ multidisciplinary-design-optimization-offshore-wind-turbines-minimum-levelized-cost-energy. The published

    E-print Network

    Papalambros, Panos

    costs, representative cost models of a wind turbine located in an offshore wind farm are used. To show://mdolab.engin.umich.edu/content/ multidisciplinary-design-optimization-offshore-wind-turbines-minimum-levelized-cost-energy. The published article.A.M. van Kuik. Multidisciplinary Design Optimization of Offshore Wind Turbines for Minimum Levelized Cost

  1. Review of the cost-effectiveness of EPA`s offshore oil and gas effluent guidelines

    SciTech Connect

    Veil, J.A.

    1991-12-31

    The United States Environmental Protection Agency (EPA) published proposed Effluent Limitation Guidelines and New Source Performance Standards for the Offshore Subcategory of the Oil and Gas Extraction Point Source Category on March 13, 1991 (56 FR 10664). These guidelines include limitations for Best Practicable Technology (BPT), Best Conventional Technology (BPT), Best Available Technology (BAT), and New Source Performance Standards (NSPS) for produced water, drilling fluids, drill cuttings, well treatment fluids, deck drainage, produced sand, and sanitary and domestic waste. As a support document to these regulations, EPA published a Cost-Effectiveness (CE) Analysis (EPA, 1991). This report calculated the CE of several different BAT and NSPS treatment options for produced water and drilling fluids and drill cuttings. Separate calculations were made for restricted versus unrestricted drilling rights and for three different oil costs per barrel. Each treatment option has a different cost and will result in removal of different levels of pollutants. The report calculates the annualized cost for each option and the pound equivalents (PE) removed and expresses the CE as $/PE. While not officially required for decision-making, as long as the CE falls within some reasonable range, the selected treatment option is considered acceptable. This paper examines the premises and assumptions used in the CE analysis and recalculates the CE statistic using alternate assumptions.

  2. Application of an Advanced Cost Model in the Different Design Phases of an Offshore Wind Turbine

    Microsoft Academic Search

    H. B. Hendriks; C. Lindenburg; H. J. T. Kooijman; H. B. Bulder; J. Bozelie; J. B. Madsen; R. Halfschepel; W. Molenaar; R. van den Berg; M. Zaaijer

    The goal of the Dutch Offshore Wind Energy Converter (DOWEC) consortium is to develop concepts and technology in order to make large scale offshore wind energy economically feasible. The overall DOWEC development comprises of the design, the construction, and the prototype testing. Onshore testing of a 3 MW research and development prototype is scheduled for the end of 2002. The

  3. Factors influencing the performance of activity based costing teams: a field study of ABC model development time in the automobile industry

    Microsoft Academic Search

    Shannon W. Anderson; James W. Hesford; S. Mark Young

    2002-01-01

    This paper examines how the group dynamics of activity based costing (ABC) development teams and the level of organizational resources devoted to model development affect model complexity and development time. A theoretical framework is developed based on the organizational literature on teams. The framework is tested using objective data from 18 ABC projects in two automobile manufacturing firms and survey

  4. Economic impacts of oil spills: Spill unit costs for tankers, pipelines, refineries, and offshore facilities. [Task 1, Final report

    SciTech Connect

    Not Available

    1993-10-15

    The impacts of oil spills -- ranging from the large, widely publicized Exxon Valdez tanker incident to smaller pipeline and refinery spills -- have been costly to both the oil industry and the public. For example, the estimated costs to Exxon of the Valdez tanker spill are on the order of $4 billion, including $2.8 billion (in 1993 dollars) for direct cleanup costs and $1.125 billion (in 1992 dollars) for settlement of damages claims caused by the spill. Application of contingent valuation costs and civil lawsuits pending in the State of Alaska could raise these costs appreciably. Even the costs of the much smaller 1991 oil spill at Texaco`s refinery near Anacortes, Washington led to costs of $8 to 9 million. As a result, inexpensive waming, response and remediation technologies could lower oil spin costs, helping both the oil industry, the associated marine industries, and the environment. One means for reducing the impact and costs of oil spills is to undertake research and development on key aspects of the oil spill prevention, warming, and response and remediation systems. To target these funds to their best use, it is important to have sound data on the nature and size of spills, their likely occurrence and their unit costs. This information could then allow scarce R&D dollars to be spent on areas and activities having the largest impact. This report is intended to provide the ``unit cost`` portion of this crucial information. The report examines the three key components of the US oil supply system, namely, tankers and barges; pipelines and refineries; and offshore production facilities. The specific purpose of the study was to establish the unit costs of oil spills. By manipulating this key information into a larger matrix that includes the size and frequency of occurrence of oil spills, it will be possible` to estimate the likely future impacts, costs, and sources of oil spills.

  5. Value in Pediatric Orthopaedic Surgery Health Care: the Role of Time-driven Activity-based Cost Accounting (TDABC) and Standardized Clinical Assessment and Management Plans (SCAMPs).

    PubMed

    Waters, Peter M

    2015-01-01

    The continuing increases in health care expenditures as well as the importance of providing safe, effective, timely, patient-centered care has brought government and commercial payer pressure on hospitals and providers to document the value of the care they deliver. This article introduces work at Boston Children's Hospital on time-driven activity-based accounting to determine cost of care delivery; combined with Systemic Clinical Assessment and Management Plans to reduce variation and improve outcomes. The focus so far has been on distal radius fracture care for children and adolescents. PMID:26049304

  6. Contrast-enhanced ultrasonography in the characterization of benign focal liver lesions: activity-based cost analysis

    Microsoft Academic Search

    N. Faccioli; M. D’Onofrio; A. Comai; C. Cugini

    2007-01-01

    Purpose  The aim of this study was to perform a cost analysis of contrast-enhanced ultrasonography (CEUS) in the study of benign focal\\u000a liver lesions (BFLL) with indeterminate appearance on ultrasonography (US).\\u000a \\u000a \\u000a \\u000a Materials and methods  A decision model of patients with suspected BFLL on baseline US who subsequently underwent CEUS between 2002 and 2005 was\\u000a constructed. We analysed the cost effectiveness of CEUS,

  7. CONGRESSIONAL BRIEFING Offshore Wind

    E-print Network

    Firestone, Jeremy

    · Fishermen's Energy · Cape Wind · BVG Associates · Maryland Energy Administration · New Bedford (MA) MarineCONGRESSIONAL BRIEFING Offshore Wind Lessons Learned from Europe: Reducing Costs and Creating Jobs Thursday, June 12, 2014 Capitol Visitors Center, Room SVC 215 Enough offshore wind capacity to power six

  8. Structural health and prognostics management for offshore wind turbines : case studies of rotor fault and blade damage with initial O&M cost modeling.

    SciTech Connect

    Myrent, Noah J. [Purdue Center for Systems Integrity, Lafayette, IN; Kusnick, Joshua F. [Purdue Center for Systems Integrity, Lafayette, IN; Barrett, Natalie C. [Purdue Center for Systems Integrity, Lafayette, IN; Adams, Douglas E. [Purdue Center for Systems Integrity, Lafayette, IN; Griffith, Daniel Todd

    2013-04-01

    Operations and maintenance costs for offshore wind plants are significantly higher than the current costs for land-based (onshore) wind plants. One way to reduce these costs would be to implement a structural health and prognostic management (SHPM) system as part of a condition based maintenance paradigm with smart load management and utilize a state-based cost model to assess the economics associated with use of the SHPM system. To facilitate the development of such a system a multi-scale modeling approach developed in prior work is used to identify how the underlying physics of the system are affected by the presence of damage and faults, and how these changes manifest themselves in the operational response of a full turbine. This methodology was used to investigate two case studies: (1) the effects of rotor imbalance due to pitch error (aerodynamic imbalance) and mass imbalance and (2) disbond of the shear web; both on a 5-MW offshore wind turbine in the present report. Based on simulations of damage in the turbine model, the operational measurements that demonstrated the highest sensitivity to the damage/faults were the blade tip accelerations and local pitching moments for both imbalance and shear web disbond. The initial cost model provided a great deal of insight into the estimated savings in operations and maintenance costs due to the implementation of an effective SHPM system. The integration of the health monitoring information and O&M cost versus damage/fault severity information provides the initial steps to identify processes to reduce operations and maintenance costs for an offshore wind farm while increasing turbine availability, revenue, and overall profit.

  9. The influence of change agents' behavioral intention on the usage of the activity based costing\\/management system and firm performance: The perspective of unified theory of acceptance and use of technology

    Microsoft Academic Search

    Chia-Ling Lee; David C. Yen; Kai-Chun Peng; Hsu-Che Wu

    2010-01-01

    This study adopts the viewpoint of the Unified Theory of Acceptance and Use of Technology (UTAUT) model to examine the change agents' behavioral intentions in the implementation of an activity based costing\\/management (ABC\\/M) system. ABC\\/M is an important management system that emphasizes the allocation of overhead costs on the basis of cost drivers, in order to provide relevant information for

  10. Co 2e emissions abatement costs of reducing natural gas flaring in Brazil by investing in offshore GTL plants producing premium diesel

    Microsoft Academic Search

    David A. Castelo Branco; Alexandre S. Szklo; Roberto Schaeffer

    2010-01-01

    This study evaluates the possibility of installing an offshore gas-to-liquids (GTL) plant in Brazil to reduce Natural Gas (NG) flaring, curb carbon dioxide equivalent (CO2e) emissions and produce premium diesel. CO2e emissions abatement costs were estimated by comparing two alternatives. The first alternative (baseline) considers that the volume of NG flared will not be reduced. Low-sulfur fuels (diesel and naphtha)

  11. Offshore Wind Research (Fact Sheet)

    SciTech Connect

    Not Available

    2011-10-01

    This 2-page fact sheet describes NREL's offshore wind research and development efforts and capabilities. The National Renewable Energy Laboratory is internationally recognized for offshore wind energy research and development (R&D). Its experience and capabilities cover a wide spectrum of wind energy disciplines. NREL's offshore wind R&D efforts focus on critical areas that address the long-term needs of the offshore wind energy industry and the Department of Energy (DOE). R&D efforts include: (1) Developing offshore design tools and methods; (2) Collaborating with international partners; (3) Testing offshore systems and developing standards; (4) Conducting economic analyses; (5) Characterizing offshore wind resources; and (6) Identifying and mitigating offshore wind grid integration challenges and barriers. NREL has developed and maintains a robust, open-source, modular computer-aided engineering (CAE) tool, known as FAST. FAST's state-of-the-art capabilities provide full dynamic system simulation for a range of offshore wind systems. It models the coupled aerodynamic, hydrodynamic, control system, and structural response of offshore wind systems to support the development of innovative wind technologies that are reliable and cost effective. FAST also provides dynamic models of wind turbines on offshore fixed-bottom systems for shallow and transitional depths and floating-platform systems in deep water, thus enabling design innovation and risk reduction and facilitating higher performance designs that will meet DOE's cost of energy, reliability, and deployment objectives.

  12. Offshore Wind Energy Market Overview (Presentation)

    SciTech Connect

    Baring-Gould, I.

    2013-07-01

    This presentation describes the current international market conditions regarding offshore wind, including the breakdown of installation costs, how to reduce costs, and the physical siting considerations considered when planning offshore wind construction. The presentation offers several examples of international existing and planned offshore wind farm sites and compares existing international offshore resources with U.S. resources. The presentation covers future offshore wind trends and cites some challenges that the United States must overcome before it will be able to fully develop offshore wind sites.

  13. Offshore Wind Energy Systems

    ERIC Educational Resources Information Center

    Musgrove, P.

    1978-01-01

    Explores the possibility of installing offshore windmills to provide electricity and to save fuel for the United Kingdom. Favors their deployment in clusters to facilitate supervision and minimize cost. Discusses the power output and the cost involved and urges their quick development. (GA)

  14. Virtual workgroups in offshore systems development

    Microsoft Academic Search

    Sachidanandam Sakthivel

    2005-01-01

    The market for offshore systems development, motivated by lower costs in developing countries, is expected to increase and reach about $15 billion in the year 2007. Virtual workgroups supported by computer and communication technologies enable offshore systems development. This article discusses the limitations of using virtual work in offshore systems development, and describes development processes and management procedures amenable to

  15. Offshore Technology

    NSDL National Science Digital Library

    Offshore Technology is a Web site specifically geared for the offshore oil and gas industry. The highlight of the site is the Industry Projects link, which gives information about offshore drilling projects from around the world. Sites are categorized geographically and include description of the project, information on the geology of the area, drilling history of the site, wellhead platform, pipeline information, and much more. Other links on the main page include an A to Z listing of contractors and suppliers, exhibition and conference information, and other helpful resources for the offshore drilling professional and researcher.

  16. Tribology offshore

    SciTech Connect

    Not Available

    1985-01-01

    The papers presented in this book deal with the performance and reliability of plant and materials in offshore engineering operations. The rigours of the North Sea environment have proved to be particularly strenuous for offshore equipment. The lessons learned in the last few years of exploration are relevant to offshore sites throughout the world. The topics covered include lifting gear, compressors, pumps, valves and seals, lubricants and lubrication, underwater equipment, friction and wear associated with the anchorage of rigs and platforms, sliding contract and condition monitoring offshore.

  17. Offshore Wind Farm Layout Optimization (OWFLO) Project: Preliminary Results

    E-print Network

    Massachusetts at Amherst, University of

    , electrical line losses, and turbine availability--with offshore wind farm component cost models present for offshore wind farm developers by creating an analysis tool that unites offshore turbineOffshore Wind Farm Layout Optimization (OWFLO) Project: Preliminary Results Christopher N. Elkinton

  18. Offshore rectenna feasbility

    NASA Technical Reports Server (NTRS)

    Freeman, J. W.; Hervey, D.; Glaser, P.

    1980-01-01

    A preliminary study of the feasibility and cost of an offshore rectenna to serve the upper metropolitan east coast was performed. A candidate site at which to build a 5 GW rectenna was selected on the basis of proximity to load centers, avoidance of shipping lanes, sea floor terrain, and relocated conditions. Several types of support structures were selected for study based initially on the reference system rectenna concept of a wire mesh ground screen and dipoles each with its own rectifier and filter circuits. Possible secondary uses of an offshore rectenna were examined and are evaluated.

  19. Towers for Offshore Wind Turbines

    NASA Astrophysics Data System (ADS)

    Kurian, V. J.; Narayanan, S. P.; Ganapathy, C.

    2010-06-01

    Increasing energy demand coupled with pollution free production of energy has found a viable solution in wind energy. Land based windmills have been utilized for power generation for more than two thousand years. In modern times wind generated power has become popular in many countries. Offshore wind turbines are being used in a number of countries to tap the energy from wind over the oceans and convert to electric energy. The advantages of offshore wind turbines as compared to land are that offshore winds flow at higher speed than onshore winds and the more available space. In some land based settings, for better efficiency, turbines are separated as much as 10 rotor diameters from each other. In offshore applications where only two wind directions are likely to predominate, the distances between the turbines arranged in a line can be shortened to as little as two or four rotor diameters. Today, more than a dozen offshore European wind facilities with turbine ratings of 450 kw to 3.6 MW exist offshore in very shallow waters of 5 to 12 m. Compared to onshore wind turbines, offshore wind turbines are bigger and the tower height in offshore are in the range of 60 to 80 m. The water depths in oceans where offshore turbines can be located are within 30 m. However as the distance from land increases, the costs of building and maintaining the turbines and transmitting the power back to shore also increase sharply. The objective of this paper is to review the parameters of design for the maximum efficiency of offshore wind turbines and to develop types offshore towers to support the wind turbines. The methodology of design of offshore towers to support the wind turbine would be given and the environmental loads for the design of the towers would be calculated for specific cases. The marine corrosion on the towers and the methods to control the corrosion also would be briefly presented. As the wind speeds tend to increase with distance from the shore, turbines build father offshore will be able to capture more wind energy. Currently two types of towers are considered. Cylindrical tubular structures and truss type structures. But truss type structures have less weight and flexibility in design. The construction of the offshore towers to harness the wind energy is also presented. The results will include the calculation of wind and wave forces on the tower and the design details for the tower.

  20. Activity-based Management in France: A focus on the information systems department of a bank

    E-print Network

    Paris-Sud XI, Université de

    the Activity-based Costing and Management methods applied in France. For that purpose, we use a literature-Saxon countries and that the methods are strategically oriented. Keywords-Activity based costing; activity-based1 Activity-based Management in France: A focus on the information systems department of a bank

  1. Risk-based inspection planning optimisation of offshore wind turbines

    Microsoft Academic Search

    José G. Rangel-Ramírez; John D. Sørensen

    2010-01-01

    Wind industry is substantially propelled and the future scenarios designate offshore locations as important sites for energy production. With this development, offshore wind farms represent a feasible option to accomplish the needed energy, bringing with it technical and economical challenges. Inspection and maintenance (I&M) costs for offshore sites are much larger than for onshore ones, making the choice of suitable

  2. Risk-based inspection planning optimisation of offshore wind turbines

    Microsoft Academic Search

    José G. Rangel-Ramírez; John D. Sørensen

    2012-01-01

    Wind industry is substantially propelled and the future scenarios designate offshore locations as important sites for energy production. With this development, offshore wind farms represent a feasible option to accomplish the needed energy, bringing with it technical and economical challenges. Inspection and maintenance (I&M) costs for offshore sites are much larger than for onshore ones, making the choice of suitable

  3. Seabed instability simplified model and application in offshore wind turbine

    Microsoft Academic Search

    Zhang Yong-li; Li Jie

    2009-01-01

    The offshore wind power is increasingly developed, it is essential to study the design technology of the offshore wind turbine foundation, which is crucial to reduce the construction cost of the offshore wind farm. In the design of marine pile foundations, the evaluation of wave-induced seabed stability is quite significant. Based on the mechanical properties of seabed, this article firstly

  4. Activity Based Costing and Decision Support

    Microsoft Academic Search

    Dick A. van Damme; Frank L. A. van der Zon

    1999-01-01

    Logistics is critical to the fulfillment of customer demands. Top management of companies is now more closely involved in logistics decisions and the importance of the consequences of these decisions is growing. It is crucial to support these decisions with relevant financial information. Companies often lack useful tools to generate this financial information. This paper presents a logistics management accounting

  5. STATE-OF-THE-ART DESIGN STANDARD SPECIFIC DEVELOPED AND APPLICABLE FOR OFFSHORE WINDTURBINE STRUCTURES

    Microsoft Academic Search

    Tove Feld

    The wind energy industry requires cost-effective design for offshore wind turbine structures in order to make the projects economically viable. The newly issued DNV standard for Design of Offshore Wind Turbine Structures fills a gap within the offshore industry being specific developed and applicable for offshore wind turbine structures. It is based on DNVs experience from participation in more than

  6. Offshore space center (offshore launch site)

    SciTech Connect

    Harvey, D.G.

    1980-07-01

    Any activity requiring the development of the HLLV can benefit by operations from an offshore space center (OSC) since operating near the equator provides a twenty percent increase in payload in an ecliptic plan orbit. Some OSC concepts considered include a moored floating (semisubmersible) design, a stationary design supported by fixed piles, and a combination of these two. The facility supports: a 15,000 foot long, 300 foot wide runway, designed to accommodate a two staged winged launch vehicle, with a one million pound payload capacity to low earth orbit, an industrial area for HLLV maintenance, an airport terminal, control and operation center, and observation tower, liquid hydrogen and liquid oxygen production and storage, and fuel storage platforms, a power generation station, docks with an unloading area, two separate launch sites, and living accommodations for 10,000 people. Potential sites include the Paramount Seamount in the Pacific Ocean off the north coast of South America. Cost estimates are considered.

  7. Offshore Space Center (offshore launch site)

    NASA Technical Reports Server (NTRS)

    Harvey, D. G.

    1980-01-01

    Any activity requiring the development of the HLLV can benefit by operations from an offshore space center (OSC) since operating near the equator provides a twenty percent increase in payload in an ecliptic plan orbit. Some OSC concepts considered include a moored floating (semisubmersible) design, a stationary design supported by fixed piles, and a combination of these two. The facility supports: a 15,000 foot long, 300 foot wide runway, designed to accommodate a two staged winged launch vehicle, with a one million pound payload capacity to low earth orbit; an industrial area for HLLV maintenance; an airport terminal, control and operation center, and observation tower; liquid hydrogen and liquid oxygen production and storage, and fuel storage platforms; a power generation station, docks with an unloading area; two separate launch sites; and living accommodations for 10,000 people. Potential sites include the Paramount Seamount in the Pacific Ocean off the north coast of South America. Cost estimates are considered.

  8. Dresser-Rand Offshore Baseplate Project Project Summary

    E-print Network

    Demirel, Melik C.

    the cost. The project focused on reevaluating the baseplate design using modern analysis toolsDresser-Rand Offshore Baseplate Project Project Summary Baseplates are utilized in offshore, with recent rises in material and manufacturing costs, there is a desire to minimize the excess and reduce

  9. The Future of Offshore Wind Power is Built Onshore

    Microsoft Academic Search

    Esa Holttinen; Jarmo Huttunen; Ilari Silvola; Aleksi Lumijärvi

    Summary: The investment costs for the offshore wind farms are 30 to 100 % higher than onshore. High installation costs, weather constraints and environmental issues all add uncertainty to the viability of investments. Several new innova- tive installation methods have been suggested. Hollming Mechanical Engineering Division has a long tradition as a supplier for the offshore and shipbuilding industries. In

  10. PLANNING AND BUDGETING FOR QUALITY: AN ACTIVITY-BASED APPROACH

    Microsoft Academic Search

    Mike Roberts; Daryl Paschall; Andrew Muras

    SUMMARY In today's competitive marketplace, quality professionals should use the latest tools to provide them information necessary to make informed business decisions and avoid costly inefficiencies such as rework and scrap. To effec- tively plan and budget for quality, an activity-based approach provides a baseline\\/benchmark of the true costs of oper- ating an efficient and value-added quality organization. Activity based

  11. New perspectives in offshore wind energy

    PubMed Central

    Failla, Giuseppe; Arena, Felice

    2015-01-01

    The design of offshore wind turbines is one of the most fascinating challenges in renewable energy. Meeting the objective of increasing power production with reduced installation and maintenance costs requires a multi-disciplinary approach, bringing together expertise in different fields of engineering. The purpose of this theme issue is to offer a broad perspective on some crucial aspects of offshore wind turbines design, discussing the state of the art and presenting recent theoretical and experimental studies. PMID:25583869

  12. New perspectives in offshore wind energy.

    PubMed

    Failla, Giuseppe; Arena, Felice

    2015-02-28

    The design of offshore wind turbines is one of the most fascinating challenges in renewable energy. Meeting the objective of increasing power production with reduced installation and maintenance costs requires a multi-disciplinary approach, bringing together expertise in different fields of engineering. The purpose of this theme issue is to offer a broad perspective on some crucial aspects of offshore wind turbines design, discussing the state of the art and presenting recent theoretical and experimental studies. PMID:25583869

  13. Access Framework: Model Text (November 2011) An Act to Establish a Framework for Development of Offshore Wind Power

    E-print Network

    Firestone, Jeremy

    of Offshore Wind Power Whereas, the offshore waters of [State] are ecologically and economically vital public, Whereas, offshore wind power provides utility-scale renewable energy at competitive costs, helps to meet consequences; and Whereas, offshore wind power, being a domestic source of energy enhances U.S. energy

  14. Assessing offshore wind potential

    Microsoft Academic Search

    Adesoji Adelaja; Charles McKeown; Benjamin Calnin; Yohannes Hailu

    2012-01-01

    Quantifying wind potential is a pivotal initial step in developing and articulating a state’s policies and strategies for offshore wind industry development. This is particularly important in the Great Lakes States where lessons from other offshore environments are not directly applicable. This paper presents the framework developed for conducting a preliminary assessment of offshore wind potential. Information on lake bathymetry

  15. Offshore Wind Geoff Sharples

    E-print Network

    Kammen, Daniel M.

    States Cape Wind PPA at 18 c/kWh #12;The cycle of non-innova?on OffshoreOffshore Wind Geoff Sharples geoff@clearpathenergyllc.com #12;Frequently Unanswered Ques?ons · Why don't "they" build more offshore wind? · Why not make

  16. Offshore oil in the Alaskan Arctic

    NASA Technical Reports Server (NTRS)

    Weeks, W. F.; Weller, G.

    1984-01-01

    Oil and gas deposits in the Alaskan Arctic are estimated to contain up to 40 percent of the remaining undiscovered crude oil and oil-equivalent natural gas within U.S. jurisdiction. Most (65 to 70 percent) of these estimated reserves are believed to occuur offshore beneath the shallow, ice-covered seas of the Alaskan continental shelf. Offshore recovery operations for such areas are far from routine, with the primary problems associated with the presence of ice. Some problems that must be resolved if efficient, cost-effective, environmentally safe, year-round offshore production is to be achieved include the accurate estimation of ice forces on offshore structures, the proper placement of pipelines beneath ice-produced gouges in the sea floor, and the cleanup of oil spills in pack ice areas.

  17. Maintenance strategies for deep-sea offshore wind turbines

    Microsoft Academic Search

    Ingrid Bouwer Utne

    2010-01-01

    Purpose – The objective of this paper is to outline a framework that guides the development of sound maintenance strategies and policies for deep-sea offshore wind turbines. Design\\/methodology\\/approach – An important challenge with offshore wind energy production is to reduce the high operation and maintenance costs. To decrease complexity, and structure the maintenance strategy developing process, systems engineering principles are

  18. Design of support structures for offshore wind turbines

    Microsoft Academic Search

    J. van der Tempel

    2006-01-01

    To meet growing energy demands, the Kyoto protocol and the much desired diversification of supply, wind energy has become a mainstream source of energy in the EU. Cost wise it is already competing with gas fired electricity. In the last decade wind moved offshore to accommodate even more wind power. The offshore wind resource is more abundant and of a

  19. 26 CFR 1.43-4 - Qualified enhanced oil recovery costs.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...recovery project. (5) Offshore drilling platforms. Amounts paid or incurred...or installation of an offshore drilling platform (regardless of whether...oil recovery costs. An offshore drilling platform used for primary or...

  20. 26 CFR 1.43-4 - Qualified enhanced oil recovery costs.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...recovery project. (5) Offshore drilling platforms. Amounts paid or incurred...or installation of an offshore drilling platform (regardless of whether...oil recovery costs. An offshore drilling platform used for primary or...

  1. 26 CFR 1.43-4 - Qualified enhanced oil recovery costs.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...recovery project. (5) Offshore drilling platforms. Amounts paid or incurred...or installation of an offshore drilling platform (regardless of whether...oil recovery costs. An offshore drilling platform used for primary or...

  2. Offshoring technology innovation: A case study of rare-earth technology

    Microsoft Academic Search

    Brian J. Fifarek; Francisco M. Veloso; Cliff I. Davidson

    2008-01-01

    Many US firms are improving their individual competitiveness by offshoring manufacturing operations, services and, increasingly, knowledge work. Although research to date has maintained that these practices are beneficial to the offshoring firm and national economies, by reducing costs and expanding markets, little is known about the longer term effect of offshoring on the rate of innovation of home economies. This

  3. A REAL OPTIONS OPTIMIZATION MODEL TO MEET AVAILABILITY REQUIREMENTS FOR OFFSHORE WIND TURBINES

    E-print Network

    Sandborn, Peter

    1 A REAL OPTIONS OPTIMIZATION MODEL TO MEET AVAILABILITY REQUIREMENTS FOR OFFSHORE WIND TURBINES wind farm with prognostic capabilities. Alternative energy sources such as offshore wind turbines-cycle cost of offshore wind turbines as can be seen in Figure 1. Hence the importance of decreasing

  4. Influence of Nonlinear Irregular Waves on the Fatigue Loads of an Offshore Wind Turbine

    E-print Network

    Papalambros, Panos

    load calculations by using a more advanced model for wave kinematics. As offshore wind turbinesInfluence of Nonlinear Irregular Waves on the Fatigue Loads of an Offshore Wind Turbine Michiel B-mail: michiel van.der.meulen@siemens.com Abstract. In order to make offshore wind power a cost effective

  5. Solar power satellite offshore rectenna study

    NASA Astrophysics Data System (ADS)

    1980-11-01

    It was found that an offshore rectenna is feasible and cost competitive with land rectennas but that the type of rectenna which is suitable for offshore use is quite different from that specified in the present reference system. The result is a nonground plane design which minimizes the weight and greatly reduces the number of costly support towers. This preferred design is an antenna array consisting of individually encapsulated dipoles with reflectors supported on feed wires. Such a 5 GW rectenna could be built at a 50 m water depth site to withstand hurricane and icing conditions for a one time cost of 5.7 billion dollars. Subsequent units would be about 1/3 less expensive. The east coast site chosen for this study represents an extreme case of severe environmental conditions. More benign and more shallow water sites would result in lower costs. Secondary uses such as mariculture appear practical with only minor impact on the rectenna design. The potential advantages of an offshore rectenna, such as no land requirements, removal of microwave radiation from populated areas and minimal impact on the local geopolitics argue strongly that further investigation of the offshore rectenna should be vigorously pursued.

  6. Offshore wind energy systems

    Microsoft Academic Search

    P. Musgrove

    1978-01-01

    Wind energy systems deployed in the shallow but windy waters of the southern North Sea have the potential to provide more than 20% of UK electricity needs. With existing experience of windmills, and of aircraft and offshore structures, such wind energy systems could be developed within a relatively short timescale. A preliminary assessment of the economics of offshore wind energy

  7. Problems unique to offshore measurement

    SciTech Connect

    Young, J.G. [ANR Pipeline Co., Lafayette, LA (United States)

    1995-12-01

    Most of us have arrived at this meeting in some kind of company provided transportation. This is supplied in order for us to do our assigned jobs. These may be trucks, or cars, or even helicopters, and maybe boats. All who are involved in the offshore industry know that transportation is the cost costly of all. The helicopter bill for our company is a bill which costs us somewhere in the 9 million dollar range. Since this costs us so much, we are constantly looking at ways to reduce this. The helicopters we use cost us $510.00 a flying hour plus $28,000.00 a month for lease. These helicopters fly in the neighborhood of 140 miles per hour. You can quickly see how fast the cost can climb. We have two technicians, along with a pilot, and approx. 400 lbs of test gear and spare parts. You have to carry all you think you will need for the day`s activities because it`s a long and costly trip to go pick up some gasket material or an orifice plate.

  8. Applications for concrete offshore

    SciTech Connect

    Not Available

    1982-01-01

    The report collects and summarizes the various proposals for development offshore which have in common the use of concrete as the main structural material, and where possible, indicates their relative feasibility. A study encompassing such diverse schemes as offshore windmills, concrete LNG carriers, hydrocarbon production platforms and floating airports cannot be completely exhaustive on each subject, so references to sources of further information have been given wherever possible. Details of individual projects and proposals are included for Power plants, Hydrocarbon production platforms, Concrete ships, Storage systems and industrial plants, Subsea systems, Offshore islands, Coastal works and Other concrete structures.

  9. Servicing the offshore industry

    SciTech Connect

    NONE

    1997-03-01

    What factors are leading operators to using boat-based services vs. those that are rig-based for offshore completions, stimulations and workovers? What trends are companies experiencing in completion practices for the unconsolidated formations in the Gulf of Mexico? What are companies` most important specifications for well service boats operating near their offshore platforms? To answer these and other questions, Petroleum Engineering International asked those who should know -- the producing companies active in offshore operations in the Gulf of Mexico and worldwide.

  10. Climbing ring robot for inspection of offshore wind turbines

    Microsoft Academic Search

    Tariq P. Sattar; Hernando Leon Rodriguez; Bryan Bridge

    2009-01-01

    Purpose – Structural integrity inspection of offshore wind turbine blades poses problems of gaining access to the blades, danger to human operatives and large costs of removing a blade and transporting it off-shore for inspection. The purpose of this paper is to show that a climbing robot that can perform in situ blade inspection with micro\\/nano focus computed axial X-ray

  11. Dynamic behavior of offshore spar platforms under regular sea waves

    Microsoft Academic Search

    A. K. Agarwal; A. K. Jain

    2003-01-01

    Many innovative floating offshore structures have been proposed for cost effectiveness of oil and gas exploration and production in water depths exceeding one thousand meters in recent years. One such type of platform is the offshore floating Spar platform. The Spar platform is modelled as a rigid body with six degrees-of-freedom, connected to the sea floor by multi-component catenary mooring

  12. OFFSHORE WIND FARM LAYOUT OPTIMIZATION (OWFLO) PROJECT: AN INTRODUCTION

    E-print Network

    Massachusetts at Amherst, University of

    a wind farm combines a turbine cost model and a wake model in conjunction with an optimization routine a wind farm combines a turbine cost model and a wake model in conjunction with an optimization routineOFFSHORE WIND FARM LAYOUT OPTIMIZATION (OWFLO) PROJECT: AN INTRODUCTION C. N. Elkinton* , J. F

  13. Electrical Collection and Transmission Systems for Offshore Wind Power: Preprint

    SciTech Connect

    Green, J.; Bowen, A.; Fingersh, L.J.; Wan, Y.

    2007-03-01

    The electrical systems needed for offshore wind farms to collect power from wind turbines--and transmit it to shore--will be a significant cost element of these systems. This paper describes the development of a simplified model of the cost and performance of such systems.

  14. Activity-Based Management System Implementation in Higher Education Institution: Benefits and Challenges

    ERIC Educational Resources Information Center

    Ismail, Noor Azizi

    2010-01-01

    Purpose: The purpose of this paper is to discuss how activity-based costing (ABC) technique can be applied in the context of higher education institutions. It also discusses the obstacles and challenges to the successful implementation of activity-based management (ABM) in the higher education environment. Design/methodology/approach: This paper…

  15. Image processing in offshore engineering

    SciTech Connect

    Rodriguez, M.V.R.; A. Oliveira, M. de; Almeida, M.E.T. de; Lorenzoni, C. [Petrobras-DEPRO, Rio de Janeiro (Brazil); Ferrante, A.J. [ISC Italia, Milano (Italy)

    1995-12-31

    The technological progress which has taken place during the last decade introduced a totally new outlook regarding the professional computational environment in general, and regarding the engineering profession in particular. During many years engineering computing was performed based on large computer centers, getting bigger and bigger all the time, going from mainframes to super computers, essentially producing numerical results on paper media. Lately, however, it has been realized that a much more productive computational environment can be implemented using an open architecture of client/server type, based on smaller lower cost equipment including workstations and PC`s, and considering engineering information in a broader sense. This papers reports briefly the experience of the Production Department of Petrobras in transforming its centralized, mainframe based, computational environment into a open distributed client/server computational environment, focusing on the problem of handling technical graphics information regarding its more than 70 fixed offshore platforms.

  16. Offshore platform cathodic protection retrofits

    SciTech Connect

    Turnipseed, S.P. [Chevron Research and Technology Co., Richmond, CA (United States)

    1996-10-01

    Cathodic protection (CP) is the primary technique used for underwater corrosion control on the majority of offshore steel structures. Offshore platforms are often kept in service far beyond their original design life. Refurbishment of the CP system is required when adequate protection can no longer be maintained. Various offshore platform CP retrofit designs are discussed.

  17. Proposing a Formalised Model for Mindful Information Systems Offshoring

    NASA Astrophysics Data System (ADS)

    Costello, Gabriel J.; Coughlan, Chris; Donnellan, Brian; Gadatsch, Andreas

    The central thesis of this chapter is that mathematical economics can provide a novel approach to the examination of offshoring business decisions and provide an impetus for future research in the area. A growing body of research indicates that projected cost savings from IT offshoring projects are not being met. Furthermore, evidence suggests that decision-making processes have been more emotional than rational, and that many offshoring arrangements have been rushed into without adequate analysis of the true costs involved. Building on the concept of mindfulness and mindlessness introduced to the IS literature by Swanson and Ramiller, a cost equation is developed using “deductive reasoning rather than inductive study” in the tradition of mathematical economics. The model endeavours to capture a wide range of both the quantitative and qualitative parameters. Although the economic model is illustrated against the background of a European scenario, the theoretical framework is generic and applicable to organisations in any global location.

  18. Dynamics of offshore structures

    SciTech Connect

    Patel, M.H.

    1989-01-01

    This book is a text on ocean engineering integrating the areas of design, construction, installation and operation of fixed and floating offshore structures. Includes basic equations and theoretical results with emphasis on the fundamentals of oceanography, basic fluid mechanics, wave theory and hydrodynamics.

  19. The state of offshore

    SciTech Connect

    Nelson, B.F.

    1991-01-01

    In this book, the author explains the factors behind state involvement in offshore petroleum activities. From his analysis of government workings in Great Britain and Norway, he concludes that state intervention is determined by complex interactions among government officials, economic interests, and environmental pressures.

  20. Customer profitability analysis: : an activity-based costing approach

    Microsoft Academic Search

    Malcolm Smith; Shane Dikolli

    1995-01-01

    Recent innovations in management accounting have emphasized a customer focus and the requirement of remaining competitive through satisfying customer needs. In so doing they have largely overlooked the dual requirement that customers should satisfy the strategic needs of the supplier. Examines customer profitability analysis (CPA) as a tool for the evaluation of the portfolio of customer profiles, and suggests that

  1. Activity based costing in small and medium enterprises

    Microsoft Academic Search

    A. Gunasekaran; H. B. Marri; R. J. Grieve

    1999-01-01

    The role of Small and Medium Enterprises (SMEs) in a national economy has been emphasized all\\u000d\\u000aover the world considering their contribution to the total manufacturing output and employment\\u000d\\u000aopportunities. Also, SMEs are flexible and innovative taking into account the size and business\\u000d\\u000astructure. Hence, there is a potential to improve the overall performance of SMEs and hence their\\u000d\\u000acompetitiveness.

  2. Activity Based Costing for Component-Based Software Development

    Microsoft Academic Search

    Robert G. Fichman; Chris F. Kemerer

    2002-01-01

    Component-based software development is a promising set of technologies designed to move software creation from its current, labor-intensive, craft-like approach to a more modern, reuse-centered style. However, a lesson learned from previous radical software process innovations is that a strong technology alone is generally insufficient for successful adoption. In order for gains to be realized from such technologies the management

  3. Activity Based Costing for Component-Based Software Development

    Microsoft Academic Search

    ROBERT G. FICHMAN; CHRIS F. KEMERER

    2002-01-01

    Component-based software development is a promising set of technologies designed to move software creation from its current, labor-intensive, craft-like approach to a more modern, reuse-centered style. However, a lesson learned from previous radical software process innovations is that a strong tech- nology alone is generally insufficient for successful adoption. In order for gains to be realized from such technologies the

  4. 2010 Cost of Wind Energy Review

    SciTech Connect

    Tegen, S.; Hand, M.; Maples, B.; Lantz, E.; Schwabe, P.; Smith, A.

    2012-04-01

    This document provides a detailed description of NREL's levelized cost of wind energy equation, assumptions and results in 2010, including historical cost trends and future projections for land-based and offshore utility-scale wind.

  5. Critical Success Factors for Offshore Software Development Outsourcing Vendors: A Systematic Literature Review

    Microsoft Academic Search

    Siffat Ullah Khan; Mahmood Niazi; Rashid Ahmad

    2009-01-01

    CONTEXT - Offshore software development outsourcing is a modern business strategy for producing high quality software at low cost. OBJECTIVE - To identify various Critical Success Factors (CSFs) that have a positive impact on software outsourcing clients in the selection process of offshore software development outsourcing vendors. METHOD - We have performed a Systematic Literature Review process for the identification

  6. Governance decisions for the offshore outsourcing of new product development in technology intensive markets

    Microsoft Academic Search

    David A. Griffith; Nukhet Harmancioglu; Cornelia Droge

    2009-01-01

    This study addresses how buyers organize their offshore outsourcing new product development relationships. Building on transaction cost economics and resource dependence theories, we propose a model of the influence of key new product development offshore outsourcing factors on two important buyers’ governance decisions (i.e., supply concentration and degree of supplier involvement). The antecedents, drawn from the marketing, management, and international

  7. Modeling offshore wind installation vessel day-rates in the United States

    Microsoft Academic Search

    Mark J Kaiser; Brian F Snyder

    2012-01-01

    Marine vessels used to install the foundations and turbines at offshore wind farms are currently a small and specialized fleet located exclusively in Europe where significant offshore wind development has occurred over the last decade. The costs to a US developer to lease an installation vessel are subject to a large degree of uncertainty because of supply and demand conditions,

  8. New Modeling Tool Analyzes Floating Platform Concepts for Offshore Wind Turbines (Fact Sheet)

    SciTech Connect

    Not Available

    2011-02-01

    Researchers at the National Renewable Energy Laboratory (NREL) developed a new complex modeling and analysis tool capable of analyzing floating platform concepts for offshore wind turbines. The new modeling tool combines the computational methodologies used to analyze land-based wind turbines with the comprehensive hydrodynamic computer programs developed for offshore oil and gas industries. This new coupled dynamic simulation tool will enable the development of cost-effective offshore technologies capable of harvesting the rich offshore wind resources at water depths that cannot be reached using the current technology.

  9. The Future of Offshore Wind Energy

    E-print Network

    Firestone, Jeremy

    in the waters around Europe #12;4 US Offshore Wind Projects Proposed Atlantic Ocean Gulf of Mexico Cape Wind1 The Future of Offshore Wind Energy #12;2 #12;3 Offshore Wind Works · Offshore wind parks: 28 in 10 countries · Operational since 1991 · Current installed capacity: 1,250 MW · Offshore wind parks

  10. U.S. Offshore Wind Manufacturing and Supply Chain Development

    SciTech Connect

    Hamilton, Bruce Duncan [Navigant Consulting, Inc.

    2013-02-22

    The objective of the report is to provide an assessment of the domestic supply chain and manufacturing infrastructure supporting the U.S. offshore wind market. The report provides baseline information and develops a strategy for future development of the supply chain required to support projected offshore wind deployment levels. A brief description of each of the key chapters includes: » Chapter 1: Offshore Wind Plant Costs and Anticipated Technology Advancements. Determines the cost breakdown of offshore wind plants and identifies technical trends and anticipated advancements in offshore wind manufacturing and construction. » Chapter 2: Potential Supply Chain Requirements and Opportunities. Provides an organized, analytical approach to identifying and bounding the uncertainties associated with a future U.S. offshore wind market. It projects potential component-level supply chain needs under three demand scenarios and identifies key supply chain challenges and opportunities facing the future U.S. market as well as current suppliers of the nation’s land-based wind market. » Chapter 3: Strategy for Future Development. Evaluates the gap or competitive advantage of adding manufacturing capacity in the U.S. vs. overseas, and evaluates examples of policies that have been successful . » Chapter 4: Pathways for Market Entry. Identifies technical and business pathways for market entry by potential suppliers of large-scale offshore turbine components and technical services. The report is intended for use by the following industry stakeholder groups: (a) Industry participants who seek baseline cost and supplier information for key component segments and the overall U.S. offshore wind market (Chapters 1 and 2). The component-level requirements and opportunities presented in Section 2.3 will be particularly useful in identifying market sizes, competition, and risks for the various component segments. (b) Federal, state, and local policymakers and economic development agencies, to assist in identifying policies with low effort and high impact (Chapter 3). Section 3.3 provides specific policy examples that have been demonstrated to be effective in removing barriers to development. (c) Current and potential domestic suppliers in the offshore wind market, in evaluating areas of opportunity and understanding requirements for participation (Chapter 4). Section 4.4 provides a step-by-step description of the qualification process that suppliers looking to sell components into a future U.S. offshore wind market will need to follow.

  11. Wind energy's promise, offshore

    Microsoft Academic Search

    TERRI BOOKMAN

    2005-01-01

    In November 2001, Cape Wind Associates, a Boston-based energy development firm, began the permitting application process with the U.S. Army Corps of Engineers to build the first offshore wind farm in the United States. The historical context and significance of the application, and of its continuing review process, is profound. On a global level looms ever-increasing evidence and recognition of

  12. Advanced Offshore Oil Platforms

    Microsoft Academic Search

    Fred S. Ellers

    1982-01-01

    Four innovative offshore platforms that are designed to withstand 100-foot waves in waters 600-feet deep are described. These platforms are: (1) Stratfjord B Concrete Gravity-Base Platform; (2) Magnus Steel-Template-Jacket Platform; (3) Hutton Tension-Leg Platform; and (4) Block 280 Guyed Tower. The Statfjord B platform, designed in Norway, rests on four massive concrete columns with storage tanks at the base. It

  13. Is more IT offshoring better?

    Microsoft Academic Search

    Ajay Bhalla; ManMohan S. Sodhi; Byung-Gak Son

    2008-01-01

    We explore the link between a company's performance and the extent of its offshoring of IT-enabled services, focusing on large western companies. Our performance measures comprise sales, profit as percentage of sales, profit\\/employee and sales\\/employee over 1999–2004. To measure offshoring, we consider the extent to which these companies have offshored: (1) software development and other IT-related development and maintenance, (2)

  14. Soil-Spring Model for Fatigue Evaluation of Cyclic-Loaded Offshore Conductors 

    E-print Network

    Ilupeju, Olusola Ayandire

    2014-05-01

    As oil exploration projects move further into deep and ultra-deep waters, where severe environmental conditions persist, having safe and functional structures, at optimal cost, by optimizing designs of offshore structures ...

  15. Activity based interfaces in online social networks

    E-print Network

    Laraqui, Jawad

    2007-01-01

    The goal of the project is to explore how activity-based interfaces can create more meaningful experiences for the users and builders of online social networking sites. Medina, a social-networking site based on the idea ...

  16. Offshore~WMEP - Monitoring offshore wind energy use

    Microsoft Academic Search

    P. Lyding; S. Faulstich; B. Hahn; D. Callies

    Offshore wind energy use is commonly suggested to play an important role in future electricity supply. However, long-term experience with thousands of onshore wind turbines explicitly hint on possible barriers for a save, efficient, economic and user friendly supply relying on offshore wind energy. A national German programme shall on the one hand support the wind energy branch improving technology

  17. Frequency Domain Load Calculation for Offshore Wind Turbines (TURBU Offshore)

    Microsoft Academic Search

    T. G. van Engelen

    The design of offshore wind turbines requires to assess a huge amount of different sea-states and wind conditions. Therefor the calculational efficiency of a comb ined time\\/frequency domain approach is attractive. This was the reason for the development of the frequency domain tool TURBU Offshore. In addition, such a tool is very feasible for parameter studies; the dynamics of large

  18. Activity based financing in England: the need for continual refinement of payment by results

    Microsoft Academic Search

    ALAN MAYNARD

    2007-01-01

    The English National Health Service is introducing activity based tariff systems or Payment by Results (PbR) as the basis for hospital funding. The funding arrangements provide incentives for increasing activity, particularly day surgery, and, uniquely, are based on costing data from all hospitals. But prices should not be based on average costs and the potential of PbR to improve the

  19. Beyond offshoring: assess your company's global potential.

    PubMed

    Farrell, Diana

    2004-12-01

    In the past few years, companies have become aware that they can slash costs by offshoring: moving jobs to lower-wage locations. But this practice is just the tip of the iceberg in terms of how globalization can transform industries, according to research by the McKinsey Global Institute (MGI). The institute's yearlong study suggests that by streamlining their production processes and supply chains globally, rather than just nationally or regionally, companies can lower their costs-as we've seen in the consumer-electronics and PC industries. Companies can save as much as 70% of their total costs through globalization--50% from offshoring, 5% from training and business-task redesign, and 15% from process improvements. But they don't have to stop there. The cost reductions make it possible to lower prices and expand into new markets, attracting whole new classes of customers. To date, however, few businesses have recognized the full scope of performance improvements that globalization makes possible, much less developed sound strategies for capturing those opportunities. In this article, Diana Farrell, director of MGI, offers a step-by-step approach to doing both things. Among her suggestions: Assess where your industry falls along the globalization spectrum, because not all sectors of the economy face the same challenges and opportunities at the same time. Also, pay attention to production, regulatory, and organizational barriers to globalization. If any of these can be changed, size up the cost-saving (and revenue-generating) opportunities that will emerge for your company as a result of those changes. Farrell also defines the five stages of globalization-market entry, product specialization, value chain disaggregation, value chain reengineering, and the creation of new markets-and notes the different levers for cutting costs and creating value that companies can use in each phase. PMID:15605568

  20. Introducing activity-based financing: a review of experience in Australia, Denmark, Norway and Sweden

    Microsoft Academic Search

    Kirsi Vitikainen; Afsaneh Bjorvatn; Anne Hvenegaard

    2007-01-01

    We review and evaluate the international literature on activity-based funding of health services, focussing especially on experience in Australia (Victoria), Denmark, Norway and Sweden. In evaluating this literature we summarise the differences and pros and cons of three different funding arrangements, namely cost-based reimbursement, global budgeting and activity-based financing. The institutional structures of the four jurisdictions that are the main

  1. On risk-based operation and maintenance of offshore wind turbine components

    Microsoft Academic Search

    Jannie Jessen Nielsen; John Dalsgaard Sørensen

    2011-01-01

    Operation and maintenance are significant contributors to the cost of energy for offshore wind turbines. Optimal planning could rationally be based on Bayesian pre-posterior decision theory, and all costs through the lifetime of the structures should be included. This paper contains a study of a generic case where the costs are evaluated for a single wind turbine with a single

  2. Floating offshore structure

    SciTech Connect

    Oshima, M.; Narita, H.; Tabuchi, H.; Yashima, N.

    1985-05-28

    A floating offshore structure which is moored at a fixed position on the sea by means of mooring hawsers and anchors connected to the ends thereof respectively for conducting a submarine excavating operation from a deck of the structure. The structure includes a moorage hull part provided with a vertical through-hole formed therein for receiving an excavating drill pipe and the mooring hawsers and a movable hull part connected to the moorage hull part so as to be rotatable within a horizontal plane. The movable hull part is constituted as a hull defining the outer wall of the floating offshore structure and connected with the moorage hull part by inserting it into a moorage hull part receiving hole formed at a position closer to the bow thereof. The movable hull part has near its water plane a horizontal section with a substantially oval shape formed by a fore draft part in a substantially circular or polygonal shape, with the moorage hull part receiving hole as a center and an after draft part taperingly projecting aft from the fore draft part.

  3. Earthquake resistant design of offshore building structures

    Microsoft Academic Search

    M. Ozaki; S. Hayashi

    1978-01-01

    A proposed earthquake resistant design system for offshore building structures in Japan is introduced. Offshore building structures are defined as the fixed type offshore structures which are constantly utilized for the purpose of habitation, duty, work, operation, gathering, recreation, sightseeing, etc. In the first section, basic principles for the design of offshore building structures are introduced considering safety of human

  4. The application of PLC distributed input/output technology offshore

    SciTech Connect

    Glendening, J.A.

    1995-12-01

    The Programmable Logic Controller is becoming a familiar part of the Process Controls on Offshore Facilities. The current evolution of this expanding technology is Distributed I/O Blocks, and this paper is concerned with the benefits and applications this new technology brings to the Offshore Industry. The advent of the Programmable Logic Controller to the Gulf of Mexico brought greater process control flexibility to Offshore facilities. The offshore control philosophy went from independent pneumatic control of each skid unit to PLC distributed control with field panels that contained the local controls for several skid units and interfaced with control room based PLC visual display stations. The Distributed I/O Block concept allows offshore control systems to eliminate the large field interface panel, along with the associated wiring and hardware cost. This is accomplished by installing Distributed 1/0 Blocks inside the individual skid control panels and then communicating back to the control room based PLC via redundant communication cables. The control wiring between each skid control panel and the control room is now reduced to one power cable and redundant communication cables.

  5. Proceedings of the 25th annual offshore technology conference. Volume 2 - Platform and marine system design

    SciTech Connect

    Not Available

    1993-01-01

    This is volume 2 of a 4 volume set of conference proceedings dealing with offshore development of mineral resources. This particular conference centers around the design, construction, and installation of offshore platforms and underwater pipelines. It contains papers which discuss retrofitting of various types of platforms to meet current safety standards. It also discusses design criteria used to minimize wave motion in offshore platforms, moorings, and various types of support facilities. Papers also describe methods for welding joints in both platforms and pipelines. Many papers specifically address economic aspects of offshore development and the cost of complying with increasing safety regulations and standards. A few papers also deal directly with engineered safety systems as they apply to offshore platforms.

  6. Offshoring and Directed Technical Change

    E-print Network

    Acemoglu, Daron

    2012-11-24

    To study the short-run and long-run implications on wage inequality, we introduce directed technical change into a Ricardian model of offshoring. A unique final good is produced by combining a skilled and an unskilled ...

  7. Methane Seeps along Offshore Virginia

    USGS Multimedia Gallery

    Numerous distinct methane streams emanating from the seafloor at an upper slope (< 500 m water depth) cold seep site offshore Virginia. Image courtesy of NOAA Okeanos Explorer Program, 2013 Northeast U.S. Canyons Expedition....

  8. What can wave energy learn from offshore oil and gas?

    PubMed

    Jefferys, E R

    2012-01-28

    This title may appear rather presumptuous in the light of the progress made by the leading wave energy devices. However, there may still be some useful lessons to be learnt from current 'offshore' practice, and there are certainly some awful warnings from the past. Wave energy devices and the marine structures used in oil and gas exploration as well as production share a common environment and both are subject to wave, wind and current loads, which may be evaluated with well-validated, albeit imperfect, tools. Both types of structure can be designed, analysed and fabricated using similar tools and technologies. They fulfil very different missions and are subject to different economic and performance requirements; hence 'offshore' design tools must be used appropriately in wave energy project and system design, and 'offshore' cost data should be adapted for 'wave' applications. This article reviews the similarities and differences between the fields and highlights the differing economic environments; offshore structures are typically a small to moderate component of field development cost, while wave power devices will dominate overall system cost. The typical 'offshore' design process is summarized and issues such as reliability-based design and design of not normally manned structures are addressed. Lessons learned from poor design in the past are discussed to highlight areas where care is needed, and wave energy-specific design areas are reviewed. Opportunities for innovation and optimization in wave energy project and device design are discussed; wave energy projects must ultimately compete on a level playing field with other routes to low CO? energy and/or energy efficiency. This article is a personal viewpoint and not an expression of a ConocoPhillips position. PMID:22184670

  9. Analyzing the Deployment of Large Amounts of Offshore Wind to Design an Offshore Transmission Grid in the United States: Preprint

    SciTech Connect

    Ibanez, E.; Mai, T.; Coles, L.

    2012-09-01

    This paper revisits the results from the U.S. Department of Energy's '20% Wind Energy By 2030' study, which envisioned that 54 GW of offshore wind would be installed by said year. The analysis is conducted using the Regional Energy Deployment System (ReEDS), a capacity expansion model developed by the National Renewable Energy Laboratory. The model is used to optimize the deployment of the 54 GW of wind capacity along the coasts and lakes of the United States. The graphical representation of the results through maps will be used to provide a qualitative description for planning and designing an offshore grid. ReEDS takes into account many factors in the process of siting offshore wind capacity, such as the quality of the resource, capital and O&M costs, interconnection costs, or variability metrics (wind capacity value, forecast error, expected curtailment). The effect of these metrics in the deployment of offshore wind will be analyzed through examples in the results.

  10. Offshore Renewable Energy R&D (Fact Sheet)

    SciTech Connect

    Not Available

    2011-10-01

    This fact sheet describes the offshore renewable energy R&D efforts at NREL's NWTC. As the United States increases its efforts to tap the domestic energy sources needed to diversify its energy portfolio and secure its energy supply, more attention is being focused on the rich renewable resources located offshore. Offshore renewable energy sources include offshore wind, waves, tidal currents, ocean and river currents, and ocean thermal gradients. According to a report published by the National Renewable Energy Laboratory (NREL) in 2010,1 U.S. offshore wind resources have a gross potential generating capacity four times greater than the nation's present electric capacity, and the Electric Power Research Institute estimates that the nation's ocean energy resources could ultimately supply at least 10% of its electric supply. For more than 30 years, NREL has advanced the science of renewable energy while building the capabilities to guide rapid deployment of commercial applications. Since 1993, NREL's National Wind Technology Center (NWTC) has been the nation's premier wind energy research facility, specializing in the advancement of wind technologies that range in size from a kilowatt to several megawatts. For more than 8 years, the NWTC has been an international leader in the field of offshore floating wind system analysis. Today, researchers at the NWTC are taking their decades of experience and extensive capabilities and applying them to help industry develop cost-effective hydrokinetic systems that convert the kinetic energy in water to provide power for our nation's heavily populated coastal regions. The center's capabilities and experience cover a wide spectrum of wind and water energy engineering disciplines, including atmospheric and ocean fluid mechanics, aerodynamics; aeroacoustics, hydrodynamics, structural dynamics, control systems, electrical systems, and testing.

  11. Reassessment of offshore platforms

    SciTech Connect

    Nair, V.V.D.; Kuhn, J.M. (Mobil Research and Development Corporation, Dallas, TX (United States))

    1993-05-01

    Data from Hurricane Andrew demonstrated that the systems and procedures in place for evacuating offshore workers and minimizing oil spills and environmental damage functioned as planned. While the vast majority of the platforms survived the storm with no damage, a few of the older platforms (installed prior to 1972) either collapsed or suffered severe damage. The collapsed platforms were designed with insufficient deck height to clear the storm waves. In recent years, the API RP 2A has introduced guidance for minimum air gap, minimum structures, platform inspection and platform reuse. These provisions, coupled with natural attribution of the older platforms, will significantly improve the performance of platforms in the future. The reliability of NDT techniques to detect major structural defects should be improved through continued research. While flooded member detection is used by several operators as a screening tool to detect major defects underwater, its reliability is not always good and further research is needed in this area. Another area of high priority research is related to the use of Remotely Operated Vehicles (ROV) to perform underwater inspection of structures. 51 refs., 7 figs.

  12. Combination offshore drilling rig

    SciTech Connect

    Lorenz, D.B.; Laid, J.S. II

    1986-07-29

    An offshore drilling rig is described for use in drilling into a formation below a body of water comprising a barge hull having a drilling slot extending inwardly from the peripheral boundary of the barge hull, means for supporting the barge hull in a position above the water, a cantilever structure mounted on the barge hull and movable horizontally with respect to such barge hull, the cantilever structure being so located relative to the drilling slot as to be movable horizontally into a position in vertical alignment with the drilling slot, a derrick and drilling machinery mounted to the cantilever structure and movable into a position above the drilling slot whereby well drilling operations may be conducted through the drilling slot, the cantilever structure also being movable horizontally to a position which locates the derrick and the drilling machinery outboard of the peripheral boundary of the barge hull, whereby a drilling operations may be conducted outside of the peripheral boundary of the barge hull, means mounted on the barge hull for moving the cantilever structure horizontally to different positions relative to the barge hull.

  13. Structure for offshore exploitation

    SciTech Connect

    Gerwick, B.C. Jr.; Hatcher, S.J.

    1984-02-28

    A structure is disclosed for use in exploiting arctic offshore areas where floating ice masses may be present. The structure is comprised of a floating hull having ice-breaking capabilities which is moored by a plurality of mooring means which extend vertically from a moonpool in the hull to the marine bottom directly under the hull. The mooring means comprises flexible lines, e.g. nylon, steel, or the like or rigid conduits, e.g. drill pipe. Means are provided within the moonpool for tensioning the mooring means to thereby draw the hull downward to a position below its normal buoyant position thereby substantially eliminating vertical heaving of the hull. When an ice mass contacts the hull, tension on the mooring means is relaxed to thereby allow the hull to rock upward against the ice thereby generating the forces necessary for the ice-breaking operation. Due to the present mooring means, the hull moves only a relatively short lateral distance in breaking an approaching ice mass. This is important in floating drilling operations. Further, if repair or replacement of a mooring means is required, this can be accomplished even when ice surrounds the hull since the mooring means are anchored directly below the hull and are easily accessible through the moonpool.

  14. Keeping earnings offshore

    SciTech Connect

    Martin, K.; Malkani, S. (Chadbourne Parke, Washington, DC (United States))

    1994-04-01

    Two IRS designations determine the taxation status for non-U.S. projects. For developers, understanding these designations is an important business concern. A PFIC (passive foreign investment company) is something to avoid. A CFC (controlled foreign corporation) may be good or bad, depending on the circumstances. These are lables that the US tax authorities put on certain foreign corporations. Anyone working on projects in other countries should be able to recognize them, not only because they may defeat his objective of keeping money offshore, but also because there are additional consequences from operating through a foreign corporation that the Internal Revenue Service (IRS) has labeled a PFIC or CFC. Return on investment may be lower than expected, and the developer may need to be more careful than otherwise not to pledge the stock of the foreign corporation as security for borrowing by the parent company in the United States or take other actions that might be viewed as putting income or assets of the foreign corporation to use here.

  15. Efficiency of HVAC power transmission from offshore-windmills to the grid

    Microsoft Academic Search

    H. Brakelmann

    2003-01-01

    For large offshore windparks far away from the coast, not only the investment costs of the transmission system but, moreover, the costs of the transmission losses play a decisive role for the economy of the total power system. In this paper some basic problems in determining the losses of HVAC transmission systems are discussed, taking into account the longitudinal distributions

  16. Principal component analysis to compress acquired data offshore

    Microsoft Academic Search

    Juan Luis Larrabe Barrena; Miguel Ángel Gómez Solaetxe; Francisco José Álvarez; Elena Gastiasoro; M. Carmen Rey

    2009-01-01

    Telecommunications offshore have connectivity in virtually all parts of\\u000athe globe via satellite, with increasing bandwidth and lower cost, but still far from\\u000alevels that are onshore. The principal component analysis (PCA) is a statistical technique\\u000athat has found application in fields such as biometrics or compression of\\u000aimages, being a common tool for finding patterns in multidimensional data sets.

  17. Offshore Aquaculture in the United States

    E-print Network

    Offshore Aquaculture in the United States: Economic Considerations, Implications & Opportunities from: http://aquaculture.noaa.gov This document should be cited as follows: Rubino, Michael (editor). 2008. Offshore Aquaculture in the United States: Economic Considerations, Implications & Opportunities

  18. A Simple Model of Offshore Outsourcing,

    E-print Network

    Paris-Sud XI, Université de

    A Simple Model of Offshore Outsourcing, Technology Upgrading and Welfare Jaewon JUNG THEMA Simple Model of Offshore Outsourcing, Technology Upgrading and Welfare Jaewon Jung and Jean Mercenier in the North as making explicit offshore outsourcing decisions to cheap-labor economies. Globalization results

  19. The politics and economics of offshore outsourcing

    Microsoft Academic Search

    N. Gregory Mankiw; Phillip Swagel

    2006-01-01

    This paper reviews the political uproar over offshore outsourcing connected with the release of the Economic Report of the President (ERP) in February 2004, examines the differing ways in which economists and non-economists talk about offshore outsourcing, and assesses the empirical evidence on the importance of offshore outsourcing in accounting for the weak labor market from 2001 to 2004. Even

  20. European offshore oil and gas, 1985

    SciTech Connect

    Not Available

    1985-01-01

    This book discusses the offshore industry, and provides information on every aspect of European offshore activity from basic geological facts to today's licensing and taxation regimes to field by field analysis of exploration and developments. It also contains a directory of European companies supplying services and equipment to offshore industry.

  1. Measuring safety climate on offshore installations

    Microsoft Academic Search

    Kathryn Mearns; Rhona Flin; Rachale Gordon; Mark Fleming

    1998-01-01

    The human and organizational factors affecting safety were examined on 10 offshore installations using the Offshore Safety Questionnaire. The questionnaire contained scales measuring work pressure and work clarity, job communication, safety behaviour, risk perception, satisfaction with safety measures and safety attitudes. A total of 722 UK offshore workers (33% response rate) from a range of occupations completed and returned the

  2. OFFSHORE ARCTIC PIPELINE OIL SPILL RISK ASSESSMENT

    Microsoft Academic Search

    A. Dinovitzer; R. Lazor; D. Hinnah

    2004-01-01

    While offshore arctic pipelines have been under consideration for more than 25 years, few have been built. Renewed interest in offshore arctic oil and gas has necessitated the design of pipelines capable of both overcoming the technical challenges of the arctic offshore environment and minimizing the risk to it. This paper describes a quantitative risk assessment completed by BMT Fleet

  3. Towers for Offshore Wind Turbines

    Microsoft Academic Search

    V. J. Kurian; S. P. Narayanan; C. Ganapathy

    2010-01-01

    Increasing energy demand coupled with pollution free production of energy has found a viable solution in wind energy. Land based windmills have been utilized for power generation for more than two thousand years. In modern times wind generated power has become popular in many countries. Offshore wind turbines are being used in a number of countries to tap the energy

  4. A liquefied energy chain for transport and utilization of natural gas for power production with CO 2 capture and storage – Part 2: The offshore and the onshore processes

    Microsoft Academic Search

    Audun Aspelund; Truls Gundersen

    2009-01-01

    A novel energy and cost effective transport chain for stranded natural gas utilized for power production with CO2 capture and storage is developed. It includes an offshore section, a combined gas carrier, and an integrated receiving terminal. In the offshore process, natural gas (NG) is liquefied to LNG by liquid carbon dioxide (LCO2) and liquid inert nitrogen (LIN), which are

  5. Ben Ticha M. B., Ranchin T., Wald L., Using several data sources for offshore wind resource assessment, 2005, Copenhagen Offshore Wind conference 2005

    E-print Network

    Boyer, Edmond

    . Abstract: The knowledge of wind resource is essential to the sitting of a wind farm. This is crucial especially in coastal areas where installation of windmills is more costly than onshore. More accurate financial risks associated to the installation of offshore wind farms. Usually, for evaluating the resource

  6. Deepwater advanced diving systems that support the offshore oil field

    SciTech Connect

    Carnevale, S.J.

    1983-03-01

    This paper reviews deepwater diving technology which provides offshore oilfield support during all phases of exploration, construction and production. Mobile Observation Bells (MOB), Atmospheric Diving Suits (ADS), Remotely-Operated Vehicles (ROV), and saturation diving techniques are discussed. The term ''deep water'' is defined in relation to the water depths off the U.S. west coast. All diving system parameters are analyzed for each alternative; cost-effectiveness and safety are the two main objectives. Specific jobs are described which have used this high technology equipment for offshore operations on the U.S. west coast. These include drilling rig support, platform inspection and maintenance, and pipeline construction. Finally, future developments in diving systems are discussed.

  7. MODELING IN THE REAL WORLD: TEACHING STUDENTS COST ESTIMATION METHODOLOGIES

    E-print Network

    Spagnolo, Filippo

    students an introduction of ABC (activity based cost) methodology and how to make links to algebra an introduction of ABC (activity-based costing) methodology in a simple but efficient way. The ABC methodology of companies and a way to estimate their activity related costs and performance. After an introduction

  8. Fatigue handbook: Offshore steel structures

    SciTech Connect

    Almarnaess, A.

    1985-01-01

    The contents of this book are: Overview of Offshore Steel Structures; Loads on Ocean Structures; Fracture Mechanics As a Tool in Fatigue Analysis; Basic Fatigue Properties of Welded Joints; Significance of Defects; Improving the Fatigue Strength of Welded Joints; Effects of Marine Environment and Cathodic Protection on Fatigue of Structural Steels Fatigue of Tubular Joints; Unstable Fracture; Fatigue Life Calculations; and Fatigue in Building Codes Background and Applications.

  9. Offshore oil-spill occurrence rates

    Microsoft Academic Search

    Robert P. LaBelle; Cheryl M. Anderson

    1996-01-01

    The U.S. Minerals Management Service maintains statistics on the frequency of offshore oil spills associated with platforms, pipelines, and tanker traffic. Oil-spill occurrence rates have decreased slightly for U.S. offshore platforms, increased for U.S. offshore pipelines, and remained about the same for worldwide tankers (comparing rates calculated through 1992 to rates calculated through the mid-80s). Recently calculated rates are presented

  10. About Hercules Offshore Headquartered in Houston, Texas, Hercules Offshore serves the oil and

    E-print Network

    Fisher, Kathleen

    About Hercules Offshore Headquartered in Houston, Texas, Hercules Offshore serves the oil and gas industry with the largest fleet of mobile drilling platforms in the U.S. Gulf of Mexico, and the fourth exploration, drilling and related maintenance tasks. Hercules Offshore operates in key oil producing sites

  11. 46 CFR 126.170 - Carriage of offshore workers.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...false Carriage of offshore workers. 126.170 Section 126...170 Carriage of offshore workers. (a) Offshore workers may be carried aboard an...meets the applicability and construction requirements of subpart...

  12. 46 CFR 15.520 - Mobile offshore drilling units.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 false Mobile offshore drilling units. 15.520 Section 15...Vessels § 15.520 Mobile offshore drilling units. (a) The requirements in this section for mobile offshore drilling units (MODUs) supplement other...

  13. 46 CFR 15.520 - Mobile offshore drilling units.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 false Mobile offshore drilling units. 15.520 Section 15...Vessels § 15.520 Mobile offshore drilling units. (a) The requirements in this section for mobile offshore drilling units (MODUs) supplement other...

  14. 46 CFR 15.520 - Mobile offshore drilling units.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 false Mobile offshore drilling units. 15.520 Section 15...Vessels § 15.520 Mobile offshore drilling units. (a) The requirements in this section for mobile offshore drilling units (MODUs) supplement other...

  15. 46 CFR 15.520 - Mobile offshore drilling units.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2012-10-01 false Mobile offshore drilling units. 15.520 Section 15...Vessels § 15.520 Mobile offshore drilling units. (a) The requirements in this section for mobile offshore drilling units (MODUs) supplement other...

  16. Infauna Monitoring Horns Rev Offshore Wind Farm

    E-print Network

    #12;Infauna Monitoring Horns Rev Offshore Wind Farm Annual Status Report 2004 Published: 21 April-2004................................................. 48 Wind farm area (Turbine), Reference area (Ref

  17. Vessel movement influences offshore communications system design

    SciTech Connect

    Holcomb, S.R. [Brown and Root Inc., Houston, TX (United States); Burger, S.D. [Amoco Orient Production Co., Chiwan (China)

    1996-05-27

    Communications links for the Liuhua 11-1 oil production project, offshore China, required a system that would function with vessel movement under typhoon conditions of heavy rainfall and extreme wave action. The system includes a microwave path between two floating production facilities and a satellite connection between the offshore facilities and onshore China. The system provides multiple local-area-network (LAN) linkages, and voice with fax in English and Chinese. The satellite link has a geostabilized platform offshore and a China National Offshore Oil Corp. master earth station onshore. System operations started in mid-1995. This paper reviews the design and performance of this communications network.

  18. Segmentation of the transportation market with regard to activity-based freight transport modelling

    Microsoft Academic Search

    G. Liedtke; H. Schepperle

    2004-01-01

    Transport models are used to estimate the expected effects of policy measures—such as infrastructure building, upgrading or the introduction of a highway toll—on the users of a transport system. The results of transport models are a necessary input for cost–benefit analyses, which answer the question of whether a policy measure improves the economic welfare. In passenger transport modelling, the activity-based

  19. Avoidable waste management costs

    SciTech Connect

    Hsu, K.; Burns, M.; Priebe, S.; Robinson, P.

    1995-01-01

    This report describes the activity based costing method used to acquire variable (volume dependent or avoidable) waste management cost data for routine operations at Department of Energy (DOE) facilities. Waste volumes from environmental restoration, facility stabilization activities, and legacy waste were specifically excluded from this effort. A core team consisting of Idaho National Engineering Laboratory, Los Alamos National Laboratory, Rocky Flats Environmental Technology Site, and Oak Ridge Reservation developed and piloted the methodology, which can be used to determine avoidable waste management costs. The method developed to gather information was based on activity based costing, which is a common industrial engineering technique. Sites submitted separate flow diagrams that showed the progression of work from activity to activity for each waste type or treatability group. Each activity on a flow diagram was described in a narrative, which detailed the scope of the activity. Labor and material costs based on a unit quantity of waste being processed were then summed to generate a total cost for that flow diagram. Cross-complex values were calculated by determining a weighted average for each waste type or treatability group based on the volume generated. This study will provide DOE and contractors with a better understanding of waste management processes and their associated costs. Other potential benefits include providing cost data for sites to perform consistent cost/benefit analysis of waste minimization and pollution prevention (WMIN/PP) options identified during pollution prevention opportunity assessments and providing a means for prioritizing and allocating limited resources for WMIN/PP.

  20. Wind height distribution influence on offshore wind farm feasibility study

    NASA Astrophysics Data System (ADS)

    Benassai, Guido; Della Morte, Renata; Matarazzo, Antonio; Cozzolino, Luca

    2015-04-01

    The economic feasibility of offshore wind power utilization depends on the favourable wind conditions offshore as compared to sites on land. The higher wind speeds have to compensate the additional cost of offshore developments. However, not only the mean wind speed is different, but the whole flow regime, as can be seen in the vertical wind speed profile. The commonly used models to describe this profile have been developed mainly for land sites, so they have to be verified on the basis of field data. Monin-Obukhov theory is often used for the description of the wind speed profile at a different height with respect to a measurement height. Starting from the former, , the profile is predicted using two parameters, Obukhov length and sea surface roughness. For situations with near-neutral and stable atmospheric stratification and long (>30km) fetch, the wind speed increase with height is larger than what is predicted from Monin-Obukhov theory. It is also found that this deviation occurs at wind speeds important for wind power utilization, mainly at 5-9 ms-1. In the present study the influence of these aspects on the potential site productivity of an offshore wind farm were investigated, namely the deviation from the theory of Monin-Obukhov due to atmospheric stability and the influence of the fetch length on the Charnock model. Both these physical effects were discussed and examined in view of a feasibility study of a site for offshore wind farm in Southern Italy. Available data consisted of time histories of wind speeds and directions collected by National Tidegauge Network (Rete Mareografica Nazionale) at the height of 10m a.s.l. in ports. The theory of Monin-Obukhov was used to extrapolate the data to the height of the wind blades, while the Charnock model was used to extend the wind speed on the sea surface from the friction velocity on the ground. The models described were used to perform calculations for a feasibility study of an offshore wind farm in Southern Italy. The potential site productivity was established on the basis of the wind speed distribution function for different heights (site specific) and the power law of the wind turbine considered, as a function of the wind speed at the nacelle height (machine specific). The results of the optimization study for different sites and different wind turbines were compared with the power estimates of Italian Wind Atlas, which provided useful insights for further study.

  1. A Real-Time Offshore Weather Risk Advisory System

    NASA Astrophysics Data System (ADS)

    Jolivet, Samuel; Zemskyy, Pavlo; Mynampati, Kalyan; Babovic, Vladan

    2015-04-01

    Offshore oil and gas operations in South East Asia periodically face extended downtime due to unpredictable weather conditions, including squalls that are accompanied by strong winds, thunder, and heavy rains. This downtime results in financial losses. Hence, a real time weather risk advisory system is developed to provide the offshore Oil and Gas (O&G) industry specific weather warnings in support of safety and environment security. This system provides safe operating windows based on sensitivity of offshore operations to sea state. Information products for safety and security include area of squall occurrence for the next 24 hours, time before squall strike, and heavy sea state warning for the next 3, 6, 12 & 24 hours. These are predicted using radar now-cast, high resolution Numerical Weather Prediction (NWP) and Data Assimilation (DA). Radar based now-casting leverages the radar data to produce short term (up to 3 hours) predictions of severe weather events including squalls/thunderstorms. A sea state approximation is provided through developing a translational model based on these predictions to risk rank the sensitivity of operations. A high resolution Weather Research and Forecasting (WRF, an open source NWP model) is developed for offshore Brunei, Malaysia and the Philippines. This high resolution model is optimized and validated against the adaptation of temperate to tropical met-ocean parameterization. This locally specific parameters are calibrated against federated data to achieve a 24 hour forecast of high resolution Convective Available Potential Energy (CAPE). CAPE is being used as a proxy for the risk of squall occurrence. Spectral decomposition is used to blend the outputs of the now-cast and the forecast in order to assimilate near real time weather observations as an implementation of the integration of data sources. This system uses the now-cast for the first 3 hours and then the forecast prediction horizons of 3, 6, 12 & 24 hours. The output is a 24 hour window of high resolution/accuracy forecasts leveraging available data-model integration and CAPE prediction. The systems includes dissemination of WRF outputs over the World Wide Web. Components of the system (including WRF computational engine and results dissemination modules) are deployed in to computational cloud. This approach tends to increase system robustness and sustainability. The creation of such a system to share information between the public and private sectors and across territorial boundaries is an important step towards the next generation of governance for climate risk and extreme weather offshore. The system benefits offshore operators by reducing downtime related to accidents and incidents; eliminate unnecessary hiring costs related to waiting on weather; and improve the efficiency and planning of transport and logistics by providing a rolling weather risk advisory.

  2. Quantitative and qualitative risk analyses -- The safety of offshore platforms

    SciTech Connect

    Bea, R.G. [Univ. of California, Berkeley, CA (United States). Dept. of Civil Engineering

    1996-12-31

    Two primary methods have been used in performing safety audits of platforms: qualitative methods such as Hazop (Hazard and operability analyses) and FEMA (Failure Modes and Effects Analyses), and quantitative methods such as QRA (Quantified Risk Analyses) and PRA (Probabilistic Risk Analyses). A third method, identified in this paper as Safety Indexing Methods (SIM), has been developed and is being applied to offshore platforms. This paper discusses experience with applications of these methods in development of safety audits on offshore platforms. The pros and cons of these alternative methods are discussed. Results of the experiences summarized in this paper high-light the potential complimentary nature of the three assessment methods. These experiences indicate that it is critical that the fundamental objective of the applications of these methods be kept in clear view. It is contented that the fundamental objective of the applications should be to develop improvements in the safety of offshore platform operations and not to produce elegant analytical constructs. The most essential ingredient in such improvements is the integration of the experience, insights, and judgment of those that have direct and daily responsibilities for field operations. An important objective of this work is to help enhance platform safety while at the same time enhancing the long term profitability of the operation. Experience indicates that some safety related activities should be discarded and more effective and efficient methods adopted. Thus, improvements in how safety is achieved can be realized without increasing costs.

  3. Technology and economics assessment of developing an Arctic offshore petroleum area in Alaska (Chukchi Sea)

    Microsoft Academic Search

    J. C. Jr

    1983-01-01

    This assessment begins with three lines of investigation: petroleum geology, environmental conditions affecting engineering and siting, and available technologies for Arctic offshore oil and gas development. These results were integrated for economic analysis into scenarios that reflect reasonable variations in operators' strategies. Construction costs and schedules are estimated, and then examined using an economic model (a basic discounted cash flow

  4. Benefits of VTOL aircraft in offshore petroleum logistics support

    NASA Technical Reports Server (NTRS)

    Wilcox, D. E.; Shovlin, M. D.

    1975-01-01

    The mission suitability and potential economic benefits of advanced VTOL aircraft were investigated for logistics support of petroleum operations in the North Sea and the Gulf of Mexico. Concepts such as the tilt rotor and lift/cruise fan are promising for future operations beyond 150 miles offshore, where their high cruise efficiency provides savings in trip time, fuel consumption, and capital investment. Depending upon mission requirements, the aircraft operating costs are reduced by as much as 20 percent to 50 percent from those of current helicopters.

  5. Offshore wind resource assessment through satellite images

    E-print Network

    1 Slide no. 4 Offshore wind resource assessment through satellite images Charlotte Bay Hasager images for offshore wind ressource assessment in lieu of in-situ mast observations #12;4 Slide no 2001 i.e. prior to construction of the wind farm 19991019 Footprint averaging per scene #12;1 0 Slide

  6. Offshore Wind Turbines: Some Technical Challenges

    E-print Network

    Houlsby, Guy T.

    1 Offshore Wind Turbines: Some Technical Challenges Prof. Guy Houlsby FREng Oxford University House engineers concerned with installation of offshore wind turbines. The author is Professor of Civil solved, a DTI and EPSRC-sponsored research programme on foundations for wind turbines will be briefly

  7. Seepage in Vietnam — onshore and offshore examples

    Microsoft Academic Search

    J. J. Traynor; Chris Sladen

    1997-01-01

    Hydrocarbon seepages in Vietnam are generally linked to migration from Tertiary source rocks, and seeps are present both onshore and offshore.Residual oil can be observed at outcrop in breached traps within Tertiary sections and in exhumed ‘buried hill’ traps in pre-Tertiary rocks in the onshore Hanoi Basin. There is active oil seepage on the western margin of the offshore Phu

  8. Oil and gas exploration, offshore southern California

    Microsoft Academic Search

    Wallis

    1981-01-01

    Four local Tertiary basins comprise the regional Pacific Basin south of Point Conception: the San Diego trough and the offshore Los Angeles, Outer Banks, and Ventura-Santa Barbara Channel Basins. The San Diego trough has not been tested by deep wells. The offshore Los Angeles Basin produces oil and gas from Neogene sandstones in giant oil fields which extend on shore.

  9. 44 MArch 2006 Can offshore aquaculture

    E-print Network

    Miami, University of

    44 MArch 2006 Can offshore aquaculture of carnivorous fish be sustainable? Case studies from and pollution concerns sug- gest that major environmental benefits are to be gained by moving cage aquaculture development of offshore aquaculture through university-industry-government partnerships. Emerging technology

  10. Passive control of offshore jacket platforms

    Microsoft Academic Search

    K. C. Patil; R. S. Jangid

    2005-01-01

    The wave-induced dynamic force is one of the most important excitations to be dealt with in the design of offshore structures. In order to perform a reliable design of an offshore structure, it is important to obtain an exact evaluation of its dynamic response but also to examine the ways of reducing the response. This paper presents the response of

  11. Mari Voldsund Exergy analysis of offshore

    E-print Network

    Kjelstrup, Signe

    Mari Voldsund Exergy analysis of offshore oil and gas processing Doctoral thesis for the degree my contact persons, helping out both with administrative issues, and with matters concerning offshore on different types of North Sea platforms; (ii) identify and discuss improvement potentials for each case

  12. The cost of the customer

    Microsoft Academic Search

    Brian Plowman

    1997-01-01

    Uses a case study in the utilities sector to demonstrate how activity-based cost management (ABCM) techniques provide a clear understanding of the leverage on the business of improving processes, and of the impact that various customer segments have on the profitability of the business. This knowledge leads to process re-engineering, benchmarking, activity-based budgeting, and many other useful initiatives. In every

  13. [Offshore ecosystem health status assessment: a review].

    PubMed

    Dai, Ben-lin; Hua, Zu-lin; Mu, Fei-hu; Xu, Ning; He, Yu-long

    2013-04-01

    With the promotion of the concept of sustainable development, the issues of aquatic ecosystem health attract substantial attention, and considerable work has been carried out on the health assessment of waters, e. g. , rivers and lakes. However, the health assessment of offshore ecosystem is still at its exploratory stage. Based on the investigations on the related references at home and abroad, this paper analyzed the concepts of offshore ecosystem health assessment, summarized the main methods for the assessment, the principles for screening related indicators, and the research philosophy, and systematically listed the quantitative indices for the assessment. Aiming at the main existing issues in the researches of offshore ecosystem health, the future research directions about the offshore ecosystem health were suggested. It was considered that the concept and connotation analyses, the screening of assessment indicators, the choice of assessment scale, and the integration of assessment methods should be further strengthened to improve the assessment of offshore ecosystem health. PMID:23898680

  14. Quantifying the hurricane risk to offshore wind turbines

    E-print Network

    Jaramillo, Paulina

    Quantifying the hurricane risk to offshore wind turbines Stephen Rosea , Paulina Jaramilloa,1. Turbine tower buckling has been observed in typhoons, but no offshore wind turbines have yet been built be destroyed by hurricanes in an offshore wind farm. We apply this model to estimate the risk to offshore wind

  15. New technology, financing methods keys to lower offshore production costs

    Microsoft Academic Search

    T. G. Hutchinson; B. J. Titsworth

    1984-01-01

    Known fields which were previously considered uneconomical can now be developed using innovative technology. Now the owner has many options other than the conventional fixed drilling\\/production platform. Some alternatives are drilling\\/production tension-leg platforms, submersibles, jack ups, self-elevating platforms with storage caisson, semisubmersibles, floating process\\/storage tankers, and submerged production systems. All these systems are rapidly evolving as acceptable, economic production techniques.

  16. Application of inverse dispersion model for estimating volatile organic compounds emitted from the offshore industrial park

    NASA Astrophysics Data System (ADS)

    Tsai, M.; Lee, C.; Yu, H.

    2013-12-01

    In the last 20 years, the Yunlin offshore industrial park has significantly contributed to the economic development of Taiwan. Its annual production value has reached almost 12 % of Taiwan's GDP in 2012. The offshore industrial park also balanced development of urban and rural in areas. However, the offshore industrial park is considered the major source of air pollution to nearby counties, especially, the emission of Volatile Organic Compounds(VOCs). Studies have found that exposures to high level of some VOCs have caused adverse health effects on both human and ecosystem. Since both health and ecological effects of air pollution have been the subject of numerous studies in recent years, it is a critical issue in estimating VOCs emissions. Nowadays emission estimation techniques are usually used emissions factors in calculation. Because the methodology considered totality of equipment activities based on statistical assumptions, it would encounter great uncertainty between these coefficients. This study attempts to estimate VOCs emission of the Yunlin Offshore Industrial Park using an inverse atmospheric dispersion model. The inverse modeling approach will be applied to the combination of dispersion modeling result which input a given one-unit concentration and observations at air quality stations in Yunlin. The American Meteorological Society-Environmental Protection Agency Regulatory Model (AERMOD) is chosen as the tool for dispersion modeling in the study. Observed concentrations of VOCs are collected by the Taiwanese Environmental Protection Administration (TW EPA). In addition, the study also analyzes meteorological data including wind speed, wind direction, pressure and temperature etc. VOCs emission estimations from the inverse atmospheric dispersion model will be compared to the official statistics released by Yunlin Offshore Industrial Park. Comparison of estimated concentration from inverse dispersion modeling and official statistical concentrations will give a better understanding about the uncertainty of regulatory methodology. The model results will be discussed with the importance of evaluating air pollution exposure in risk assessment.

  17. The offshore wind resources assessment application of floating LiDAR in the Taiwan Strait

    NASA Astrophysics Data System (ADS)

    Hsuan, Chung-Yao; Wu, Yu-Ting; Lin, Ta-Hui

    2015-04-01

    Wind and wave measurements of a Floating LiDAR (Light Detection And Ranging) Device (FLD) are performed on the site of Fuhai Offshore Wind Farm in the Taiwan Strait. The location of the deployment is situated 10 kilometers off-coast of Changhua County, and the anchored water depth is 25 meters. It is the very first time in Asia Pacific Region to use such device for tasks of offshore wind and wave measurement. Six range gate heights were set at 55m, 71m, 90m, 110m, 150m and 200m from the FLD sensor lens. Wind speeds and wind directions were measured by a remote sensing technology. Wave heights and periods were also measured by the buoy wave sensor. A validation campaign of NCKU WindSentinel has performed by a portable LiDAR (WINDCUBE v2) at Hsing-Da Harbor in the south of Taiwan from October 16th to 26th, 2013. The results showed good agreements with 10 minute averaged data of the wind speed and wind direction measured by the two LiDARs. NCKU WindSentinel data are planning comparisons with Fuhai's offshore fixed mast data when the meteorological mast is completed. The goal is to convince the wind energy community that FLD are a reliable and cost effective way of obtaining data for resource assessment. Until this moment, The FLD are observing and measuring the offshore wind farm's meteorological and oceanographic data. In September of 2014, a mild typhoon (Fung-Wong) passed through from east of Taiwan. NCKU WindSentinel continuously measured during typhoon period in the sea. The present preliminary measurements campaign presented the convenient and more cost effective option of the FLD, which may be a key tool for assessment of offshore wind resources in the near-future offshore wind farm developments.

  18. Assessment of Ports for Offshore Wind Development in the United States

    SciTech Connect

    Elkinton, Chris [DNV GL] [DNV GL; Blatiak, Alicia; Ameen, Hafsa

    2014-03-21

    As offshore wind energy develops in the United States, port facilities will become strategic hubs in the offshore wind farm supply chain because all plant and transport logistics must transit through these facilities. Therefore, these facilities must provide suitable infrastructure to meet the specific requirements of the offshore wind industry. As a result, it is crucial that federal and state policy-makers and port authorities take effective action to position ports in the offshore wind value chain to take best advantage of their economic potential. The U.S. Department of Energy tasked the independent consultancy GL Garrad Hassan (GL GH) with carrying out a review of the current capability of U.S. ports to support offshore wind project development and an assessment of the challenges and opportunities related to upgrading this capability to support the growth of as many as 54 gigawatts of offshore wind installed in U.S. waters by 2030. The GL GH report and the open-access web-based Ports Assessment Tool resulting from this study will aid decision-makers in making informed decisions regarding the choice of ports for specific offshore projects, and the types of investments that would be required to make individual port facilities suitable to serve offshore wind manufacturing, installation and/or operations. The offshore wind industry in the United States is still in its infancy and this study finds that additional port facilities capable of supporting offshore wind projects are needed to meet the anticipated project build-out by 2030; however, no significant barriers exist to prevent the development of such facilities. Furthermore, significant port capabilities are in place today with purpose-build port infrastructure currently being built. While there are currently no offshore wind farms operating in the United States, much of the infrastructure critical to the success of such projects does exist, albeit in the service of other industries. This conclusion is based on GL GH’s review of U.S. ports infrastructure and its readiness to support the development of proposed offshore wind projects in U.S. waters. Specific examples of facility costs and benefits are provided for five coastal regions (North Atlantic, South Atlantic, Gulf of Mexico, Great Lakes, and Pacific) around the country. GL GH began this study by identifying the logistical requirements of offshore wind ports to service offshore wind. This review was based on lessons learned through industry practice in Northern Europe. A web-based port readiness assessment tool was developed to allow a capability gap analysis to be conducted on existing port facilities based on the identified requirements. Cost models were added to the assessment tool, which allowed GL GH to estimate the total upgrade cost to a port over the period 2014-2030 based on a set of regional project build-out scenarios. Port fee information was gathered from each port allowing an estimate of the potential revenue to the port under this same set of scenarios. The comparison of these revenue and improvement cost figures provides an initial indication of the level of offshore wind port readiness. To facilitate a more in-depth infrastructure analysis, six ports from different geographic regions, with varied levels of interest and preparedness towards offshore wind, were evaluated by modeling a range of installation strategies and port use types to identify gaps in capability and potential opportunities for economic development. Commonalities, trends, and specific examples from these case studies are presented and provide a summary of the current state of offshore wind port readiness in the U.S. and also illustrate the direction some ports have chosen to take to prepare for offshore wind projects. For example, the land area required for wind turbine and foundation manufacturing is substantial, particularly due to the large size of offshore wind components. Also, the necessary bearing capacities of the quayside and storage area are typically greater for offshore wind components than for more conventiona

  19. Cathodic protection of well casings offshore

    SciTech Connect

    Schremp, F.W.

    1982-08-01

    Wells completed from offshore platforms have unique cathodic protection (CP) problems because they are shorted electrically to the platforms. Thus, there is no convenient way to determine how much galvanic or impressed current flows in each well casing system. Also, most platforms are protected with sacrificial anodes, and the depth to which they protect well casings is unknown. Furthermore, there are no established protection criteria applicable to offshore well casings attached to platforms. This study was performed to investigate the effects of galvanic current and impressed current CP on an offshore platform and six wells, and some CP guidelines were established.

  20. Offshore drilling to increase in 1984

    SciTech Connect

    Not Available

    1984-05-01

    A mid-year report presents a worldwide overview of offshore drilling operations. The Gulf of Mexico and the North Sea are posting substantial gains as companies rush to drill the millions of acres acquired in those sectors both last year and in previous offerings. The Middle East, Latin America and the Asia/Pacific offshore theaters will see only slight increases. The Mediterranean and African regions are expected to sustain declines. A region-by-region summary of the 1984 offshore forecast is presented showing exploration and appraisal activities, as well as development for all of these areas.

  1. Certification of offshore mooring steel wire ropes

    SciTech Connect

    Lohne, P.W. [Det Norske Veritas AS, Oslo (Norway)

    1996-12-31

    The trend to produce oil in increasingly deeper water has led to the development of floating production solutions for the exploitation of the energy resources in these areas. It is a fact that steel wire ropes have been used and are being proposed as line segments in the majority of the mooring systems of these units/ships. This paper specifies requirements for the materials, design, manufacture and testing of large diameter offshore mooring steel wire ropes and may serve as a technical reference document in contractual matters between the purchaser and the manufacturer. Typical applications covered are permanently moored floating production systems (FPS), offshore loading systems and mobile offshore units.

  2. Structural health and prognostics management for offshore wind turbines : an initial roadmap.

    SciTech Connect

    Griffith, Daniel Todd; Resor, Brian Ray; White, Jonathan Randall; Paquette, Joshua A.; Yoder, Nathanael C. [ATA Engineering, San Diego, CA

    2012-12-01

    Operations and maintenance costs for offshore wind plants are expected to be significantly higher than the current costs for onshore plants. One way in which these costs may be able to be reduced is through the use of a structural health and prognostic management system as part of a condition based maintenance paradigm with smart load management. To facilitate the creation of such a system a multiscale modeling approach has been developed to identify how the underlying physics of the system are affected by the presence of damage and how these changes manifest themselves in the operational response of a full turbine. The developed methodology was used to investigate the effects of a candidate blade damage feature, a trailing edge disbond, on a 5-MW offshore wind turbine and the measurements that demonstrated the highest sensitivity to the damage were the local pitching moments around the disbond. The multiscale method demonstrated that these changes were caused by a local decrease in the blade's torsional stiffness due to the disbond, which also resulted in changes in the blade's local strain field. Full turbine simulations were also used to demonstrate that derating the turbine power by as little as 5% could extend the fatigue life of a blade by as much as a factor of 3. The integration of the health monitoring information, conceptual repair cost versus damage size information, and this load management methodology provides an initial roadmap for reducing operations and maintenance costs for offshore wind farms while increasing turbine availability and overall profit.

  3. Outsourcing, offshoring and the US office market

    E-print Network

    Topolewski, Tanya M., 1969-

    2004-01-01

    There is intense debate among industry analysts and scholars over potential job losses caused by offshoring. The real estate industry has been grappling to understanding the implications of these numbers, as some have ...

  4. 31 CFR 548.406 - Offshore transactions.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY BELARUS SANCTIONS REGULATIONS Interpretations § 548.406 Offshore transactions. The prohibitions in § 548.201 on...

  5. 31 CFR 548.406 - Offshore transactions.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY BELARUS SANCTIONS REGULATIONS Interpretations § 548.406 Offshore transactions. The prohibitions in § 548.201 on...

  6. 31 CFR 548.406 - Offshore transactions.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY BELARUS SANCTIONS REGULATIONS Interpretations § 548.406 Offshore transactions. The prohibitions in § 548.201 on...

  7. 31 CFR 548.406 - Offshore transactions.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY BELARUS SANCTIONS REGULATIONS Interpretations § 548.406 Offshore transactions. The prohibitions in § 548.201 on...

  8. 31 CFR 548.406 - Offshore transactions.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY BELARUS SANCTIONS REGULATIONS Interpretations § 548.406 Offshore transactions. The prohibitions in § 548.201 on...

  9. 31 CFR 595.407 - Offshore transactions.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY TERRORISM SANCTIONS REGULATIONS Interpretations § 595.407 Offshore transactions. The prohibitions contained in §...

  10. Future characteristics of Offshore Support Vessels

    E-print Network

    Rose, Robin Sebastian Koske

    2011-01-01

    The objective of this thesis is to examine trends in Offshore Support Vessel (OSV) design and determine the future characteristics of OSVs based on industry insight and supply chain models. Specifically, this thesis focuses ...

  11. Engineering Challenges for Floating Offshore Wind Turbines

    SciTech Connect

    Butterfield, S.; Musial, W.; Jonkman, J.; Sclavounos, P.

    2007-09-01

    The major objective of this paper is to survey the technical challenges that must be overcome to develop deepwater offshore wind energy technologies and to provide a framework from which the first-order economics can be assessed.

  12. A Collaborative Environment for Offshore Engineering Simulations

    E-print Network

    Barbosa, Alberto

    , gallotti, rogerps, wagnerga}@tecgraf.puc-rio.br 2 CENPES/Petrobras ismaelh@petrobras.com.br Abstract of Petrobras, a large Brazilian governmental oil & gas company. For this article we have focused on Offshore

  13. 31 CFR 593.406 - Offshore transactions.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY FORMER LIBERIAN REGIME OF CHARLES TAYLOR SANCTIONS REGULATIONS Interpretations § 593.406 Offshore transactions. The prohibitions in § 593.201 on...

  14. 31 CFR 593.406 - Offshore transactions.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY FORMER LIBERIAN REGIME OF CHARLES TAYLOR SANCTIONS REGULATIONS Interpretations § 593.406 Offshore transactions. The prohibitions in § 593.201 on...

  15. EMS offshore. A new horizon for paramedics.

    PubMed

    Mallard, A S

    1991-10-01

    The difficulty in getting medical aid to offshore drilling platforms can be a source of life-threatening delays. Recently, some companies have charted new waters by actually stationing EMS crews on their rigs. PMID:10116023

  16. Visualization of vibration experienced in offshore platforms

    E-print Network

    Patrikalakis, Alexander Marinos Charles

    2010-01-01

    In this thesis, I design and evaluate methods to optimize the visualization of vortex-induced vibration (VIV) in marine risers. VIV is vibration experienced by marine risers in offshore drilling platforms due to ocean ...

  17. Paraffin deposition in offshore oil production 

    E-print Network

    Elphingstone, Gerald Mason

    1995-01-01

    The extreme environmental conditions typically encountered in offshore oil operations lead to a number of problems. Cool deep sea temperatures promote particle formation and deposition of paraffinic compounds. These solids can buildup inside...

  18. Collapse of offshore pipelines: Seminar proceedings

    SciTech Connect

    Not Available

    1990-02-20

    In order to transfer the results of research on collapse of offshore pipelines sponsored by the Pipeline Research Committee, the Offshore Supervisory Committee held a one-day seminar, on February 20, 1990. Participants included experts from academia, offshore service company representatives, and natural gas and oil companies with offshore interests. Offshore pipeline construction has some significant problems not found in land pipeline construction. Among these are laying pipe over a laybarge stinger with a significant unsupported span to bottom, laying pipe from a reel barge, or pulling pipe through a J-tube to connect to an offshore platform. The latter two applications result in the pipe undergoing significant plastic deformation during the installation process, which could lead to failure of the pipe. Another unique offshore loading is from the water itself which exerts external pressure on the line during construction and operations. This external pressure may cause the pipe to collapse. There are many cases underwater where significant spans occur, such as the unsupported span from a laybarge, where the lateral loads from weight or current are carried by a combination of tension and large deflections rather than bending moments. This structural behavior is not accounted for in most piping design and analysis computer programs. The approach to address these problems has been theoretical work, small-scale testing and large-scale testing to verify the theories and small-scale tests. The seminar included the progress in understanding pipe buckling phenomena from its beginnings to the five years of PRC-sponsored work involving small-scale tests. The final and main portion of the seminar was devoted to the transfer of offshore pipeline design guidelines.

  19. Activity-based funding model provides foundation for province-wide best practices in renal care.

    PubMed

    Levin, Adeera; Lo, Clifford; Noel, Kevin; Djurdjev, Ogjnenka; Amano, Erlyn C

    2013-01-01

    British Columbia has a unique funding model for renal care in Canada. Patient care is delivered through six health authorities, while funding is administered by the Provincial Renal Agency using an activity-based funding model. The model allocates funding based on a schedule of costs for every element of renal care, excluding physician fees. Accountability, transparency of allocation and tracking of outcomes are key features that ensure successful implementation. The model supports province-wide best practices and equitable care and fosters innovation. Since its introduction, the outpatient renal services budget has grown less than the population, while maintaining or improving clinical outcomes. PMID:24485244

  20. New technology, concepts aim at lower costs

    Microsoft Academic Search

    Moritis

    1996-01-01

    New technologies both at the application stage and at the concept stage aim at reducing costs for producing and developing offshore fields. At the center of many of these new technologies are floating production, storage, offloading, and drilling vessels. These vessels are tied to subsea completions that take advantage of smaller and lighter wellheads, and such emerging technologies as subsea

  1. Application of low density foam pigs offshore Brazil

    SciTech Connect

    Lima, P.C.R.; Alves, S.J. [Petrobras, Rio de Janeiro (Brazil)

    1995-12-31

    In complex offshore installations, such as in the Campos Basin, it is relatively common to encounter pipeline systems where conventional pigs can not be run due to several factors. Changing pipe diameters, and presence of wet X-mas trees and manifolds are the most troublesome ones. In this work a new successful concept of using low cost and low density foam pigs for both liquid removal in wet-gas pipelines, and paraffin removal in oil and multiphase flow pipelines, is presented. Experimental work conducted in a 4 in laboratory facility, including a small scale glass manifold and a 6 in steel manifold, proved these pigs to be very effective. The performance of almost all kind of flexible polyurethane foams manufactured in Brazil is evaluated. Three field tests are also reported. The first low density foam pig operation was performed on a 127 mile long, 16 in diameter wet-gas offshore pipeline where the foam pig showed even higher liquid removal efficiency than the conventional inflatable spheres. The second operation was performed on a 6 mile long, 12 in diameter multiphase production offshore pipeline, which has never been pigged during its 9 year operation, and resulted in the removal of approximately 200 tons of paraffin. Finally, the third successful case is the cleaning of a 2 mile long flexible flow line of a subsea completed satellite well, in which the foam pigs were sent through a 2.5 in gas lift line, through a wet x-mas tree, not designed to be pigged, and then back through the 4 in production flow line. In spite of the fact that this paper is focusing on condensate and paraffin removal in pipeline, the basic principles can be applied to several kinds of operations: general pipeline cleaning; products separation in pipeline; corrosion evaluation; chemical product application.

  2. Offshore structures: a book list. [80 references to offshore engineering and construction

    SciTech Connect

    Vance, M.

    1983-01-01

    The references in this bibliography are divided into the two classifications of ocean engineering and offshore structures. The first section deals with marine science and facilities in general; the latter is concerned with the construction, engineering, and maintenance of offshore structures. (DCK)

  3. Horns RevHorns Rev Offshore Wind FarmOffshore Wind Farm

    E-print Network

    Horns RevHorns Rev Offshore Wind FarmOffshore Wind Farm #12;Prepared for: ELSAM A/S, Overgade 45......................................................................................................6-1 Annex 6.1. Wind Farm Area. Spring 2001.............................................................................6-1 Annex 6.2. Wind Farm Area. Autumn 2001

  4. 75 FR 17755 - Certificate of Alternative Compliance for the Offshore Supply Vessel GULF TIGER

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-07

    ...maneuver within close proximity of offshore platforms. Due to the design of the...susceptible to damage from offshore platforms. The offshore supply vessel...maneuvering within close proximity to offshore platforms. In addition, the...

  5. Norwegian Offshore Stratigraphic Lexicon (NORLEX)

    NASA Astrophysics Data System (ADS)

    Gradstein, Felix M.; Hammer, Oyvind; Brunstad, Harald; Charnock, Mike; Hellem, Terje; Sigve Lervik, Kjell; Anthonissen, Erik

    2010-05-01

    The Norwegian Offshore Stratigraphic Lexicon (NORLEX) provides a relational stratigraphic database for the North Sea, Norwegian Sea, Barents Sea and Svalbard. Both regional lithostratigraphy and biostratigraphy are being substantially updated, following guidelines laid out in the International Stratigraphic Guide. The main body of information developed is available as a petroleum consortium (oracle-style) database, and the new lithostratigraphic definitions as a public domain (paper) document. NORLEX is presented as a browsing website via the internet at http://www.nhm.uio.no/norlex. Seismic cross-sections, core photographs, well logs, field outcrops, microfossil occurrences and other vital attributes are relationally cross-linked. In addition, there are menus for instantly finding updated formation and member tops or microfossil events in all wells, plus a map contouring routine for unit thicknesses and depths. Several new initiatives will expand data and user coverage: 1. Overhaul of Mesozoic stratigraphy, especially Triassic and Cretaceous, in the Barents Sea. 2. Coverage of East Greenland 3. Linkage to UK and Belgium and The Netherlands surface and subsurface stratigraphy 4. Creation of a Sequence Stratigraphic Framework for specific regions. 5. A national microfossil atlas to support zonations 6. Tight linkage to the basin datapacks in TimeScaleCreator Pro, as developed for Australia, New Zealand, Brasil, Gulf of Mexico, Canada and Russia. NORLEX may thus evolve to become STRATLEX, covering many basin regions.

  6. Federal Offshore Statistics, 1993. Leasing, exploration, production, and revenue as of December 31, 1993

    SciTech Connect

    Francois, D.K.

    1994-12-31

    This document contains statistical data on the following: federal offshore lands; offshore leasing activity and status; offshore development activity; offshore production of crude oil and natural gas; federal offshore oil and natural gas sales volume and royalties; revenue from federal offshore leases; disbursement of federal offshore revenue; reserves and resource estimates of offshore oil and natural gas; oil pollution in US and international waters; and international activities and marine minerals. A glossary is included.

  7. Grid Simulator for Testing a Wind Turbine on Offshore Floating Platform

    SciTech Connect

    Gevorgian, V.

    2012-02-01

    An important aspect of such offshore testing of a wind turbine floating platform is electrical loading of the wind turbine generator. An option of interconnecting the floating wind turbine with the onshore grid via submarine power cable is limited by many factors such as costs and associated environmental aspects (i.e., an expensive and lengthy sea floor study is needed for cable routing, burial, etc). It appears to be a more cost effective solution to implement a standalone grid simulator on a floating platform itself for electrical loading of the test wind turbine. Such a grid simulator must create a stable fault-resilient voltage and frequency bus (a micro grid) for continuous operation of the test wind turbine. In this report, several electrical topologies for an offshore grid simulator were analyzed and modeled.

  8. Lake Michigan Offshore Wind Feasibility Assessment

    SciTech Connect

    Boezaart, Arnold [GVSU; Edmonson, James [GVSU; Standridge, Charles [GVSU; Pervez, Nahid [GVSU; Desai, Neel [University of Michigan; Williams, Bruce [University of Delaware; Clark, Aaron [GVSU; Zeitler, David [GVSU; Kendall, Scott [GVSU; Biddanda, Bopi [GVSU; Steinman, Alan [GVSU; Klatt, Brian [Michigan State University; Gehring, J. L. [Michigan State University; Walter, K. [Michigan State University; Nordman, Erik E. [GVSU

    2014-06-30

    The purpose of this project was to conduct the first comprehensive offshore wind assessment over Lake Michigan and to advance the body of knowledge needed to support future commercial wind energy development on the Great Lakes. The project involved evaluation and selection of emerging wind measurement technology and the permitting, installation and operation of the first mid-lake wind assessment meteorological (MET) facilities in Michigan’s Great Lakes. In addition, the project provided the first opportunity to deploy and field test floating LIDAR and Laser Wind Sensor (LWS) technology, and important research related equipment key to the sitting and permitting of future offshore wind energy development in accordance with public participation guidelines established by the Michigan Great Lakes Wind Council (GLOW). The project created opportunities for public dialogue and community education about offshore wind resource management and continued the dialogue to foster Great Lake wind resource utilization consistent with the focus of the GLOW Council. The technology proved to be effective, affordable, mobile, and the methods of data measurement accurate. The public benefited from a substantial increase in knowledge of the wind resources over Lake Michigan and gained insights about the potential environmental impacts of offshore wind turbine placements in the future. The unique first ever hub height wind resource assessment using LWS technology over water and development of related research data along with the permitting, sitting, and deployment of the WindSentinel MET buoy has captured public attention and has helped to increase awareness of the potential of future offshore wind energy development on the Great Lakes. Specifically, this project supported the acquisition and operation of a WindSentinel (WS) MET wind assessment buoy, and associated research for 549 days over multiple years at three locations on Lake Michigan. Four research objectives were defined for the project including to: 1) test and validate floating LIDAR technology; 2) collect and access offshore wind data; 3) detect and measure bird and bat activity over Lake Michigan; 4) conduct an over water sound propagation study; 5) prepare and offer a college course on offshore energy, and; 6) collect other environmental, bathometric, and atmospheric data. Desk-top research was performed to select anchorage sites and to secure permits to deploy the buoy. The project also collected and analyzed data essential to wind industry investment decision-making including: deploying highly mobile floating equipment to gather offshore wind data; correlating offshore wind data with conventional on-shore MET tower data; and performing studies that can contribute to the advancement and deployment of offshore wind technologies. Related activities included: • Siting, permitting, and deploying an offshore floating MET facility; • Validating the accuracy of floating LWS using near shoreline cup anemometer MET instruments; • Assessment of laser pulse technology (LIDAR) capability to establish hub height measurement of wind conditions at multiple locations on Lake Michigan; • Utilizing an extended-season (9-10 month) strategy to collect hub height wind data and weather conditions on Lake Michigan; • Investigation of technology best suited for wireless data transmission from distant offshore structures; • Conducting field-validated sound propagation study for a hypothetical offshore wind farm from shoreline locations; • Identifying the presence or absence of bird and bat species near wind assessment facilities; • Identifying the presence or absence of benthic and pelagic species near wind assessment facilities; All proposed project activities were completed with the following major findings: • Floating Laser Wind Sensors are capable of high quality measurement and recordings of wind resources. The WindSentinel presented no significant operational or statistical limitations in recording wind data technology at a at a high confidence level as compared to traditional an

  9. The Seabed Stability Zonation in Chinese Offshore

    NASA Astrophysics Data System (ADS)

    Du, J.

    2013-12-01

    There are abundant natural resources and energy in Chinese offshore continental shelf, and which should be the most development potential region now and in the future. But the seabed of Chinese offshore is often under the instable status caused by many factors which deeply affects the safety of marine development. Marine geohazards is an active one among the influence factors. The marine geohazards means the geological factors developed in the seabed surface and the strata below the seabed, such as fault, shallow gas, landslide, coastal erosion, buried river channel, sand wave and sand ridge, easily liquefied sand layer etc., which will cause damage to the human life and property. In this paper, the seabed stability were analyzed and divided it into five grades based on the marine geohazards evaluation result which made by fuzzy mathematic model. Firstly, by collecting the analyzing the marine geohazards which distributed on the seabed or under the seabed, the marine geohazards maps in Chinese offshore were made and the classification system of marine geohazards was established. Then, the evaluation index system of seabed stability was set which included the seismic peak acceleration, geomorphology, direct geohazards and restricted geohazards. And the weighted value of each indicator was calculated by using analytic hierarchy process. And, a group of appropriate number with normal distribution was selected to replace the membership grade function. Based on above, a fuzzy evaluation model for seabed stability is established. Using the maps of marine geohazards, geomorphology maps and seismic peak acceleration maps as data source, using the fuzzy matrix as calculated method, based on the principles of maximum membership grade of fuzzy mathematics, we get the evaluation result of Chinese offshore with 6' by 6' grid unit. The maximum membership grade should be taken as the stability level in each unit. Above all, the seabed stability of Chinese offshore is divided into five grades according to the maximum membership grade. In this paper, we defined 5 classes which respectively were basically stable, relatively stable, medium, relatively unstable and unstable. By using statistical analysis method, a stability zonation map of the Chinese offshore has been drawn based on the evaluation result of each unit. From the stability map, Chinese offshore seabed stability was divided into sixty sub-regions with 5 classes. And the unstable sub-regions were mainly located in the North-East of Liaodong Bay, north of Laizhou Bay, the shoal in north Jiangsu, north Taiwan offshore and around Nan'ao Islands of Guangdong. Most Chinese offshore seabed stability has been in the relatively stable status.

  10. Risk-based maintenance model for offshore oil and gas pipelines: a case study

    Microsoft Academic Search

    Prasanta Kumar Dey; Stephen O. Ogunlana; Sittichai Naksuksakul

    2004-01-01

    Offshore oil and gas pipelines are vulnerable to environment as any leak and burst in pipelines cause oil\\/gas spill resulting in huge negative impacts on marine lives. Breakdown maintenance of these pipelines is also cost-intensive and time-consuming resulting in huge tangible and intangible loss to the pipeline operators. Pipelines health monitoring and integrity analysis have been researched a lot for

  11. Genetic differentiation between inshore and offshore Atlantic cod (Gadus morhua)

    E-print Network

    Ruzzante, Daniel E.

    Genetic differentiation between inshore and offshore Atlantic cod (Gadus morhua) off Newfoundland, and Sally V. Goddard Abstract: The genetic difference between inshore overwintering Atlantic cod (Gadus morhua) from Trinity Bay, Newfoundland, and offshore overwintering cod from the Grand Bank region

  12. Hard Bottom Substrate Monitoring Horns Rev Offshore Wind Farm

    E-print Network

    Hard Bottom Substrate Monitoring Horns Rev Offshore Wind Farm Annual Status Report 2003 #12;Hard Bottom Substrate Monitoring Horns Rev Offshore Wind Farm Annual Status Report 2003 Published: 14 May 2004

  13. FEED-IN TARIFFS AND OFFSHORE WIND POWER DEVELOPMENT

    E-print Network

    Firestone, Jeremy

    FEED-IN TARIFFS AND OFFSHORE WIND POWER DEVELOPMENT Prepared by Jon Lilley, Blaise Sheridan, Dawn........................................................................................................................ 28 #12; 3 Feed-in Tariffs and Offshore Wind Power Development Prepared Pursuant to DOE Grant Em

  14. E2I EPRI Assessment Offshore Wave Energy Conversion Devices

    E-print Network

    E2I EPRI Assessment Offshore Wave Energy Conversion Devices Report: E2I EPRI WP ­ 004 ­ US ­ Rev 1 #12;E2I EPRI Assessment - Offshore Wave Energy Conversion Devices Table of Contents Introduction ............................................................................... 26 Appendix E - Orecon

  15. 46 CFR 15.520 - Mobile offshore drilling units (MODUs).

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 2014-10-01 2014-10-01 false Mobile offshore drilling units (MODUs). 15.520 Section 15.520 Shipping...Requirements; Inspected Vessels § 15.520 Mobile offshore drilling units (MODUs). (a) The requirements in this...

  16. Plastic Limit Analysis of Offshore Foundation and Anchor 

    E-print Network

    Chi, Chao-Ming

    2010-10-12

    This study presents the applications of plastic limit analysis to offshore foundations and anchors, including the drag embedment anchors (DEAs) for mobile offshore drilling units (MODU’s) and spudcan foundations for jack-up ...

  17. Strengthening America's Energy Security with Offshore Wind (Fact Sheet)

    SciTech Connect

    Not Available

    2012-02-01

    This fact sheet describes the current state of the offshore wind industry in the United States and the offshore wind research and development activities conducted the U.S. Department of Energy Wind and Water Power Program.

  18. Coupled Dynamic Analysis of Multiple Unit Floating Offshore Wind Turbine

    E-print Network

    Bae, Yoon Hyeok

    2013-04-23

    floating wind turbines, so the effects of such high-frequency excitations from the tower and blades need to be checked. 5 Another concept for floating offshore wind farms is the Multiple Unit Floating Offshore Wind Turbine (MUFOWT). This model...

  19. Ecological Issues Related to Decommissioning of California's Offshore Production Platforms

    E-print Network

    Carr, Mark H.

    Ecological Issues Related to Decommissioning of California's Offshore Production Platforms Report offshore oil production platforms to assess the current state of knowledge and identify a research agenda................................................................................................................ 8 II.A. Review of California platforms

  20. AMCA: an Active-based Multicast Congestion Avoidance Algorithm

    Microsoft Academic Search

    Moufida Maimour; Congduc Pham

    2003-01-01

    Many works have recently addressed the issue of con- gestion control for multicast communications and the prob- lem is known to be highly complex. Scalability, responsive- ness, stability and fairness with TCP are some of the re- quired properties. In this paper, we present a congestion avoidance scheme for bulk data distribution called AMCA (Active-based Multicast Congestion Avoidance algorithm) that

  1. Activity-based Access Control Model to Hospital Information

    Microsoft Academic Search

    Le Xuan Hung; Sungyoung Lee; Young-koo Lee; Heejo Lee

    2007-01-01

    Hospital work is characterized by the need to manage multiple activities simultaneously, constant local mobility, frequently interruptions, and intense collaboration and communication. Hospital employees must handle a large amount of data that is often tied to specific work activities. This calls for a proper access control model. In this paper, we propose a novel approach, Activity-based access Control Model (ACM).

  2. Active Base Isolation of Building Structures in Two Dimensions

    Microsoft Academic Search

    Charles DeVore; Chia-Ming Chang; B. F. Spencer

    2007-01-01

    In seismic design, base isolation is a useful mecha nism for improving the structural response to dynamic excitation such as an earthquak e. Previous research has demonstrated the viability of this method, which ha s led to its implementation in many real world applications. Historically, base isolat ion research has focused on passive isolation; to date, active base isolation has

  3. Activity Based Curriculum for Elementary Education. Additional Activities, K-6.

    ERIC Educational Resources Information Center

    Wichita Public Schools, KS.

    This elementary curriculum is a vehicle to provide manipulative activities that reinforce academic skills through meaningful, relevant, activity-based awareness of modern society. The twenty-six activity plans included in the curriculum place a major emphasis upon realistic or concrete experiences that deal with the manipulation and exploration of…

  4. Activity Based Video Content Trajectory Representation and Segmentation

    E-print Network

    Gong, Shaogang

    -line segmentation algorithms. Its performance is compared to that of two off-line algorithms on surveillance videos representation is superior to a colour histogram based representation for surveillance video segmentation. 1Activity Based Video Content Trajectory Representation and Segmentation Tao Xiang and Shaogang Gong

  5. Activity-based management and the product development process

    Microsoft Academic Search

    Paolo Maccarrone

    1998-01-01

    Most studies on activity-based management (ABM) focus on applications in manufacturing environments. Instead, little attention has been given to the potentialities of ABM for support units, although these are widely considered to be one of the most relevant sources of inefficiencies, especially in large firms. The purpose of the paper is to illustrate how the ABM methodology can be applied

  6. How ARCO drills high-angle wells offshore Indonesia

    SciTech Connect

    Tjondrodiputro, B.; Eddyarso, H.; Jones, K. (Atlantic Richfield Indonesia, Inc., Jakarta (Indonesia))

    1993-04-01

    As described in Part 1, Atlantic Richfield Indonesia, Inc. (ARII) drilled 28 high-angle wells between early 1986 and October 1990, in its Offshore North West Java contract area. Drilling techniques for these wells were detailed, including descriptions of the bottom-hole assemblies, casing and mud programs, hole cleaning and logging. This concluding article of the two-part series discusses ARII's completion methods for the 28 wells.A key cost saving feature of the completions was use of a predrilled 7-in. production liner in the long horizontal sections, instead of a cemented and perforated liner. This type of completion was possible because the principal target zone is a highly compacted limestone. Described here are perforation wash tool operations and installation of electric submersible pumps. Production performance is analyzed to explain high-angle well advantages over vertical wells in Bima field. Application of production logging tools with a coiled tubing system are overviewed.

  7. Exploration potential of offshore northern California basins

    SciTech Connect

    Bachman, S.B.; Crouch, J.K.

    1988-01-01

    A series of exploratory wells was drilled in the northern California offshore basins in the 1960s following leasing of federal tracts off northern California, Oregon, and Washington. The drilling, although encountering numerous oil shows, was considered at the time to indicate low prospectivity in an area that extended as far south as the offshore Santa Maria basin. However, subsequent major discoveries in this decade in the offshore Santa Maria basin, such as the Point Arguello field, indicate that these offshore basins may be highly prospective exploration targets. Many of the key features of Monterey production in central and southern California are also present in the offshore basins of northern California. A new 5-year leasing plan has scheduled leasing in the northern California OCS starting in early 1989. The first basins on the schedule, the Point Arena and Eel River basins, differ in some respects. The Point Arena basin is more typical of a Monterey basin, with the potential for fractured chert reservoirs and organic-rich sections, deep burial of basinal sections to enhance the generation of higher gravity oils, and complex folding and faulting. The Eel River basin is more clastic-rich in its gas-producing, onshore extension. Key questions in the Eel River basin include whether the offshore, more distal stratigraphy will include Monterey-like biogenic sediments, and whether the basin has oil potential in addition to its proven gas potential. The Outer Santa Cruz basin shares a similar stratigraphy, structure, and hydrocarbon potential with the Point Arena basin. The Santa Cruz-Bodega basin, also with a similar stratigraphy, may have less exploration potential because erosion has thinned the Monterey section in parts of the basin.

  8. An overview of offshore wind electric energy resources

    Microsoft Academic Search

    Hamed H. Aly; M. E. El-Hawary

    2010-01-01

    In this paper we review offshore wind energy for generating electricity at off-shore sites. In particular, we survey the impacts of offshore wind integration into the grid, various types of generators and their dynamic modeling, fault ride-through techniques used to improve generator and grid integration performance, the aggregated wind turbines modeling and finally highlight some stability and control issues.

  9. Offshore Series Wind Turbine Variable Hub heights & rotor diameters

    E-print Network

    Firestone, Jeremy

    3.6MW Offshore Series Wind Turbine GE Energy #12;Feature Variable Hub heights & rotor diameters harmonious function within the local grid Allows wind turbines to stay on line generating power, even during-savings feature, considering the rigors of offshore power generation. The 3.6 MW offshore wind turbine also

  10. 47 CFR 22.1037 - Application requirements for offshore stations.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 false Application requirements for offshore...CARRIER SERVICES PUBLIC MOBILE SERVICES Offshore...Service § 22.1037 Application requirements for offshore...days before filing the application: (1) The name...caused to any base or mobile station using the...

  11. A Brief History of the New England Offshore Fisheries

    E-print Network

    A Brief History of the New England Offshore Fisheries By Albert C. Jensen UNITED STATES DEPARTMENT BERIE. onald L. :'.lcK rnan, Dir dor A Brief History of the New England Offshore Fisheries By ALBER T C · · · · · · · · · · 0 · 0 · · · · · · · · · · 111 12 14 #12;A Brief History of the New England Offshore Fisheries

  12. R & D on Offshore Wind Power Generation System in Japan

    Microsoft Academic Search

    Kazuhito Oishi; Yukinari Fukumoto

    2009-01-01

    Offshore wind energy has been widely exploited in Europe. Having a long coastline, the offshore wind energy will be the one of the important solutions for the increase of renewable energy in Japan. However, due to the difference in wind and marine condition between Japan and Europe, the safety, the environmental impact and the economical feasibility of the offshore wind

  13. ForPeerReview PUBLIC ACCEPTANCE OF OFFSHORE WIND POWER

    E-print Network

    Firestone, Jeremy

    ForPeerReview PUBLIC ACCEPTANCE OF OFFSHORE WIND POWER PROJECTS IN THE UNITED STATES Journal: Wind, Andrew; Minerals Management Service Keywords: offshore wind power, public opinion, social acceptancePeerReview 1 PUBLIC ACCEPTANCE OF OFFSHORE WIND POWER PROJECTS IN THE UNITED STATES Jeremy Firestone*, Willett

  14. Ris-R-1407(EN) Efficient Development of Offshore

    E-print Network

    the at- mosphere and wind turbines in offshore regimes. The objective of the ENDOW project the impact of thermal flows, roughness and orography on offshore wind speeds. The model hierarchy developed, Roskilde April 2003 #12;Abstract Europe has large offshore wind energy potential that is poised

  15. Evolution and Reduction of Scour around Offshore Wind Turbines

    Microsoft Academic Search

    David McGovern; Suzana Ilic

    2010-01-01

    Evolution and Reduction of Scour around Offshore Wind Turbines In response to growing socio-economic and environmental demands, electricity generation through offshore wind turbine farms is a fast growing sector of the renewable energy market. Considerable numbers of offshore wind farms exist in the shallow continental shelf seas of the North-West Europe, with many more in the planning stages. Wind energy

  16. Building the business case for diversity in offshoring

    Microsoft Academic Search

    Carine Peeters; Patricia Garcia-Prieto Sol

    2009-01-01

    Offshoring inevitably leads to increased cultural diversity in work relations. Most companies perceive this increased diversity as a risk, a problem that needs to be minimized or remedied for offshoring to succeed. Building on the business case for diversity management literature we propose an alternative positive view of cultural diversity in the context of offshore relationships. We suggest that the

  17. Energy Efficient Pump Control for an Offshore Oil Processing System

    E-print Network

    Yang, Zhenyu

    /gas to the onshore or nearby offshore processing platforms, and move the products from one processing facilityEnergy Efficient Pump Control for an Offshore Oil Processing System Zhenyu Yang Kian Soleiman Bo, Denmark. Abstract: The energy efficient control of a pump system for an offshore oil processing system

  18. A fuzzy approach to the lectotype optimization of offshore platforms

    Microsoft Academic Search

    S. Chen; G. Fu

    2003-01-01

    Lectotype optimization of offshore platforms is of particular importance in the concept design process. Lectotype optimization involves multiple objectives with uncertainty and so is a problem of multiple attribute decision making. To date, there have been few published works on this topic in the context of offshore engineering. This paper develops a framework and methodology for evaluation of offshore platform

  19. International Offshore Students' Perceptions of Virtual Office Hours

    ERIC Educational Resources Information Center

    Wdowik, Steven; Michael, Kathy

    2013-01-01

    Purpose: The main aim of this study is to gauge international offshore students' perceptions of virtual office hours (VOH) to consult with their offshore unit coordinators in Australia. Design/methodology/approach: This paper employs a quantitative and qualitative approach where data was sourced from three offshore campuses over a 12-month period…

  20. Cost Allocation Policy OMB Circular A-21

    E-print Network

    Clark, John

    Expenses can be allocated to the federal grant or contract activity based on benefit derived, causeCost Allocation Policy OMB Circular A-21 Office of Management and Budget (OMB) Circular A-21 establishes principles for determining costs applicable to grants, contracts, and other agreements

  1. Regional method to assess offshore slope stability.

    USGS Publications Warehouse

    Lee, H.J.; Edwards, B.D.

    1986-01-01

    The slope stability of some offshore environments can be evaluated by using only conventional acoustic profiling and short-core sampling, followed by laboratory consolidation and strength testing. The test results are synthesized by using normalized-parameter techniques. The normalized data are then used to calculate the critical earthquake acceleration factors or the wave heights needed to initiate failure. These process-related parameters provide a quantitative measure of the relative stability for locations from which short cores were obtained. The method is most applicable to offshore environments of gentle relief and simple subsurface structure and is not considered a substitute for subsequent site-specific analysis. -from ASCE Publications Information

  2. Exotic invertebrate species on offshore oil platforms

    Microsoft Academic Search

    Henry M. Page; J Enifer E. Dugan; Carolynn S. Culver; JC Hoesterey

    2006-01-01

    ABSTRACT: We report the presence,of 3 exotic invertebrate,species,inhabiting,offshore,oil and gas platforms on the Pacific offshore continental shelf (POeS) of central and southern California, USA. These exotic species,occur in high cover or density and may,negatively,affect populations,of native species on the platforms. Conspicuous,exotic species,(the bryozoan,Watersipora ?subtorquata and the anemone,Diadumene,sp.) were detected on 2 of 7 platforms,surveyed. An inconspicuous,exotic spe­ cies (the amphipod,Caprella

  3. Gaining and sustaining competitive advantage with activity based cost management system

    Microsoft Academic Search

    Hooshang M. Beheshti

    2004-01-01

    In the era of competitive global environment and technology-based organizations managers are, more than ever, pressured to find ways to maintain their competitive advantage. In order to achieve and sustain a competitive advantage, managers must examine the internal processes of their companies. The firm produces products or provide services by performing a set of activities that create value. Increasing the

  4. Supplier selection using activity-based costing and fuzzy present-worth techniques

    Microsoft Academic Search

    Ibrahim Dogan; Ugur Sahin

    2003-01-01

    The relationship between a supplier and a purchaser is one of the most essential issues for viability of both sides. The well-built relationship is especially related to the healthy selection of suppliers. The changing customer preferences also make this selection process important. Many different selection approaches have been published in the purchasing literature. In these studies, the working conditions of

  5. Activity-based costing diffusion across organizations: an exploratory empirical analysis of Finnish firms

    Microsoft Academic Search

    Teemu Malmi

    1999-01-01

    This study aims to explain what drives innovation diffusion in management accounting during its various phases. Based on Abrahamson [Abrahamson, E. (1991). Managerial fads and fashions: the diffusion and rejection of innovations. Academy of Management Review, 16, 586–612], four perspectives with potential to explain the diffusion of accounting innovations are identified: the efficient-choice, forced selection, fad and fashion perspectives. The

  6. Le Time Driven Activity Based Costing (TDABC): "New Wine, or Just New Bottles?"

    E-print Network

    Paris-Sud XI, Université de

    date de novembre 2004 correspond au premier article publié3 dans une revue, la Harvard Business Review and the deviation revealed by TDABC is simply a deviation in the volume of business. Keywords: error of aggregation

  7. Activity-based management and traditional costing in tourist enterprises (a hotel implementation model)

    Microsoft Academic Search

    Athanasios Vazakidis; Ioannis Karagiannis

    2011-01-01

    Nowadays, Greece is a country blessed with many archeological monuments and sightseeing of great interest and we have to mention\\u000a the thousands of beaches and ideal places for tourism. Thus, one of the main sources of income is tourism. The growth of Tourist\\u000a Sector in Greece consists of well organized hotels and apartments similar to the best of the world.

  8. Activity Based Costing of Probation with and without Substance Abuse Treatment: A Case Study

    Microsoft Academic Search

    Farrokh Alemi; Faye Taxman; Victoria Doyon; Meridith Thanner; Heibatollah Baghi

    2004-01-01

    Background: Since many offenders have drug problems, investigators have proposed that drug testing and treatment should be an integral part of probation. In 1994, the Office of National Drug Control Policy (ONDCP) funded a demonstration project designed to integrate drug treatment with traditional supervision services. As part of this demonstration a new procedure called ''seamless'' probation was set up in

  9. Offshore Wind Turbines - Estimated Noise from Offshore Wind Turbine, Monhegan Island, Maine: Environmental Effects of Offshore Wind Energy Development

    Microsoft Academic Search

    Pamela M. Aker; Anthony M. Jones; Andrea E. Copping

    2010-01-01

    Deep C Wind, a consortium headed by the University of Maine will test the first U.S. offshore wind platforms in 2012. In advance of final siting and permitting of the test turbines off Monhegan Island, residents of the island off Maine require reassurance that the noise levels from the test turbines will not disturb them. Pacific Northwest National Laboratory, at

  10. United States Offshore Wind Resource Assessment

    NASA Astrophysics Data System (ADS)

    Schwartz, M.; Haymes, S.; Heimiller, D.

    2008-12-01

    The utilization of the offshore wind resource will be necessary if the United States is to meet the goal of having 20% of its electricity generated by wind power because many of the electrical load centers in the country are located along the coastlines. The United States Department of Energy, through its National Renewable Energy Laboratory (NREL), has supported an ongoing project to assess the wind resource for the offshore regions of the contiguous United States including the Great Lakes. Final offshore maps with a horizontal resolution of 200 meters (m) have been completed for Texas, Louisiana, Georgia, northern New England, and the Great Lakes. The ocean wind resource maps extend from the coastline to 50 nautical miles (nm) offshore. The Great Lake maps show the resource for all of the individual lakes. These maps depict the wind resource at 50 m above the water as classes of wind power density. Class 1 represents the lowest available wind resource, while Class 7 is the highest resource. Areas with Class 5 and higher wind resource can be economical for offshore project development. As offshore wind turbine technology improves, areas with Class 4 and higher resource should become economically viable. The wind resource maps are generated using output from a modified numerical weather prediction model combined with a wind flow model. The preliminary modeling is performed by AWS Truewind under subcontract to NREL. The preliminary model estimates are sent to NREL to be validated. NREL validates the preliminary estimates by comparing 50 m model data to available measurements that are extrapolated to 50 m. The validation results are used to modify the preliminary map and produce the final resource map. The sources of offshore wind measurement data include buoys, automated stations, lighthouses, and satellite- derived ocean wind speed data. The wind electric potential is represented as Megawatts (MW) of potential installed capacity and is based on the square kilometers (sq. km) of Class 5 and higher wind resource found in a specific region. NREL uses a factor of 5 MW of installed capacity per sq. km of "windy water" for its raw electric potential calculations. NREL uses Geographic Information System data to break down the offshore wind potential by state, water depth, and distance from shore. The wind potential estimates are based on the updated maps, and on previous offshore resource information for regions where new maps are not available. The estimates are updated as new maps are completed. For example, the updated Texas offshore map shows almost 3000 sq. km of Class 5 resource within 10 nm of shore and nearly 2000 sq. km of Class 5 resource or 10,000 MW of potential installed capacity in water depths of less than 30 m. NREL plans to develop exclusion criteria to further refine the offshore wind potential

  11. How ARCO drills high-angle wells offshore Indonesia

    SciTech Connect

    Tjondrodiputro, B.; Eddyarso, H.; Jones, K. (Atlantic Richfield Indonesia, Inc., Jakarta (Indonesia))

    1993-03-01

    Atlantic Richfield Indonesia, Inc. (ARII) drilled and completed 28 high-angle wells since early 1986 in Bima, Papa and FF fields in the Offshore North West Java Sea (ONWJ) contract area. Early wells were drilled with conventional rotary bottomhole assemblies (BHAs); introduction of a steerable tool and MWD subsequently increased efficiency and reduced drilling costs. Both lignosulfonate and dispersed pac polymer muds have been used with good success. Cost to drill a high-angle well has been only marginally more than that of a 45[degree] directional well. Elimination of open hole logging and use of preperforated liners have reduced drilling costs by 10%. Production performance for wells has been higher than for vertical or low-angle wells. High-angle wells in Bima have outperformed offset vertical wells and are classified as a success. However, horizontal wells in Papa, which has a strong bottom-water drive, have not shown any improved recovery over conventional wells. The new well in FF field is still being evaluated. In this first of a two-part report, high-angle drilling operations including well planning, BHA selection, casing and mud programs, hole cleaning and logging are described. Specific wells in the Bima area are discussed as examples.

  12. What is the Transparent, Activity-Based Budget System and why is it being done?

    E-print Network

    Saskatchewan, University of

    What is the Transparent, Activity-Based Budget System and why is it being done? This project Commitment, the Transparent, Activity-Based Budget System (TABBS) will result in a new model that will inform Scope 4. Informative Transparent, Activity-Based Budget System (TABBS) Transparent, Activity-Based

  13. Live Cell Organelle-Specific Activity-Based Protein Profiling**

    PubMed Central

    Wiedner, Susan D.; Anderson, Lindsey N.; Sadler, Natalie C.; Chrisler, William B.; Kodali, Vamsi K.; Smith, Richard D.

    2014-01-01

    A multimodal acidic organelle targeting activity-based probe was developed to measure subcellular native enzymatic activity of cells by fluorescent microscopy and mass spectrometry. A cathepsin reactive warhead, conjugated to a weakly basic amine and a clickable alkyne, for subsequent appendage of a fluorophore or biotin reporter tag, accumulated in lysosomes as observed by Structured Illumination Microscopy (SIM) in J774 mouse macrophage cells. Analysis of in vivo labeled J774 by mass spectrometry showed that the probe was very selective for Cathepsins B and Z, two lysosomal cysteine proteases. Analysis of starvation-induced autophagy, a catabolic pathway involving lysosomes, showed a large increase in tagged protein number and an increase in cathepsin activity. Organelle targeting activity-based probes, enabled by fine-tuning of physicochemical features, holds great promise for characterizing enzyme activities in the myriad diseases implicated to subcellular locales, particularly the lysosome. PMID:24505022

  14. System of activity-based models for Portland, Oregon

    SciTech Connect

    NONE

    1998-05-01

    This report demonstrates that activity-based travel demand models are currently feasible and can replace traditional trip-based travel four-step demand models for urban areas. Travel decisions are part of a broader activity scheduling decision, and requires that one model the demand for activities as well as mobility. The objective of the research project was to emphasize development of a model system that captures the aspects of decision making while remaining applicable in the near term at the level of state and metropolitan planning organizations. The work indicates that activity-based modeling and forecasting is now feasible and can begin to replace the more traditional trip-based forecasting paradigm within MPOs in the United States. Further developments and improvements are possible in model estimation and application procedures. Future advancements in computing processing power will be important in allowing full power of the approach to be applied in practice.

  15. A New Architecture for Offshore Wind Farms

    Microsoft Academic Search

    Anish Prasai; Jung-Sik Yim; Deepak Divan; Ashish Bendre; Seung-Ki Sul

    2008-01-01

    Offshore wind farms using HVDC links can be positioned a large distance from shore, opening up new opportunities for wind generation. Conventional approaches using 60 Hz generators and transformers are not appropriate in such applications, as they are heavy and result in expensive and complex installation and maintenance issues. This paper proposes an alternative architecture for such wind farms, using

  16. A new architecture for offshore wind farms

    Microsoft Academic Search

    Anish Prasai; A. Bendre; Jung-Sik Yim; Seung-Ki Sul; D. Divan; Frank Kreikebaum

    2007-01-01

    Offshore wind farms using HVDC links can be positioned a large distance from shore, opening up new opportunities for wind generation. Conventional approaches using 60 hertz generators and transformers are not appropriate in such applications, as they are heavy and result in expensive and complex installation and maintenance issues. This paper proposes an alternative architecture for such wind farms, using

  17. Oceanic engineering and offshore energy production

    Microsoft Academic Search

    William M. Carey; Claude P Brancart

    2008-01-01

    The Annual Energy Outlook 2008 [1] prepared by Energy Information Administration of the United States Department of Energy projects the continued use of fossil fuels (liquids, coal and natural gas) with little emphasis on “Oceanic Energy Conversion” and marginal importance to “Offshore Wind Energy conversion.” However the potential energy available for conversion to electrical energy along the coastal United States

  18. Rocky and Sandy Seafloor Offshore California

    USGS Multimedia Gallery

    Image of ripples in sand, next to a rocky surface on the seafloor 2.5 km (1.5 miles) offshore San Mateo County, California at a depth of 24.6 meters (81 feet). The two red dots in the image (from lasers mounted on the camera and used as reference points) are 15 cm (6 inches) apa...

  19. Nantucket Sound Offshore Wind Stakeholder Process

    Microsoft Academic Search

    Greg Watson; Fara Courtney

    2004-01-01

    In response to government efforts to promote renewable energy development, Cape Wind Associates proposed the first offshore wind farm in the United States. The plan has been met with both vehement opposition and ardent support. In response to an increasingly unproductive debate over the project, the Massachusetts Technology Collaborative (MTC), a quasi-state agency, held a series of stakeholder meetings to

  20. A heave compensation approach for offshore cranes

    Microsoft Academic Search

    Jörg Neupert; Tobias Mahl; Bertrand Haessig; Oliver Sawodny; Klaus Schneider

    2008-01-01

    Offshore installations during harsh sea conditions results in rigorous requirements in terms of safety and efficiency for the involved crane system. Hence a heave compensation system based on heave motion prediction and an inversion based control strategy is proposed. The control objective is to let the rope suspended payload track a desired reference trajectory in an earth fixed frame without

  1. Accord near for offshore California oil shipments

    SciTech Connect

    Not Available

    1993-02-15

    There are faint glimmers of hope again for offshore California operators. After more than a decade of often bitter strife over offshore oil and gas development and transportation issues, state officials and oil producers may be moving toward compromise solutions. One such solution may be forthcoming on offshore development. But the real change came with the turnabout of the California Coastal Commission (CCC), which last month approved a permit for interim tankering of crude from Point Arguello oil field in the Santa Barbara Channel to Los Angeles. The dispute over how to ship offshore California crude to market has dragged on since before Point Arguelo development plans were unveiled. The project's status has become a flashpoint in the U.S. debate over resource use and environmental concerns. The controversy flared anew in the wake of the 1989 Exxon Valdez tanker spill off Alaska, when CCC voided a Santa Barbara County permit for interim tankering, a move project operator Chevron Corp. linked to the Exxon Valdez accident. Faced with litigation, the state's economic devastation, and acrimonious debate over transporting California crude, Gov. Pete Wilson and other agencies approved the CCC permit. But there's a catch: A permanent pipeline must be built to handle full production within 3 years. The paper discusses permit concerns, the turnaround decision, the anger of environmental groups, and pipeline proposals.

  2. CHOOSING OFFSHORE PIPELINE ROUTES: PROBLEMS AND SOLUTIONS

    EPA Science Inventory

    The report discusses the environmental and fisheries problems associated with offshore pipelines. The report focuses on how these problems can be addressed during the pipeline planning and route selection process. Geologic hazards are highlighted as the major factors related to p...

  3. High-Alloy Materials for Offshore Applications

    Microsoft Academic Search

    T. F. Lemke; J. A. Harris

    1983-01-01

    High-alloy materials possessing good corrosion resistance in hot, sour brines are being seriously considered for offshore applications. These alloys are available in a wide range of strength levels which can be attained by the methods of cold working or precipitation hardening. Results of testing INCONEL alloys 625 and 718 and INCOLOY alloys 825 and 925 for resistance to general corrosion,

  4. Planning and evaluation parameters for offshore complexes

    NASA Technical Reports Server (NTRS)

    Sincoff, M. Z. (editor); Dajani, J. S. (editor)

    1976-01-01

    Issues are presented for consideration in the planning and design of offshore artificial complexes. The construction of such complexes, their social, economic, and ecological impacts, and the legal-political-institutional environments within which their development could occur, are discussed. Planning, design, and construction of near-shore complexes located off the Mid-Atlantic coast of the United States is emphasized.

  5. Environmental effects of offshore oil production

    Microsoft Academic Search

    Middleditch

    1981-01-01

    The Buccaneer Gas and Oil Field Study is the most comprehensive interdisciplinary ecological study to date of an offshore oil field operating under normal conditions. Involving nearly 30 individual research groups, the study focused on the effects of the oil field structures and on low-level chronic exposure of organisms to various discharges from the production platforms. Chapters cover a wide

  6. HYDRODYNAMIC LOADING ON SLENDER OFFSHORE WIND TURBINES

    Microsoft Academic Search

    A. R. Henderson; Garrad Hassan

    In the shallow seas that are the favoured locations for offshore wind farms, the limited water depths can result in highly non-linear waves. The determination of the design wave loads will involve selection of appropriate models of wave kinematics as well as force and structural dynamics models. Each selection will involve a compromise between accuracy and usability (speed, ease of

  7. Sea loads on ships and offshore structures

    Microsoft Academic Search

    O. M. Faltinsen

    1990-01-01

    The book introduces the theory of the structural loading on ships and offshore structures caused by wind, waves and currents, and goes on to describe the applications of this theory in terms of real structures. The main topics described are linear-wave induced motions, loads on floating structures, numerical methods for ascertaining wave induced motions and loads, viscous wave loads and

  8. Practical stochastic fatigue analysis of offshore platforms

    Microsoft Academic Search

    R. Skjong; H. O. Madsen

    1987-01-01

    A method for stochastic fatigue analysis of offshore platforms is presented. The method accounts for the nonlinearity in the drag loading term, and for the systematic deviation from a Gaussian process for a platform response. The method is based on an assumed form of the stress response process at a hot spot. A number of full scale measurements for elements

  9. Fatigue failure paths for offshore platform inspection

    Microsoft Academic Search

    Demir I. Karsan; Ashok Kumar

    1990-01-01

    A closed- form, reliability-based procedure is developed to identify fatigue failure paths of offshore structures and assess the notional probability of system failure through these paths. The procedure utilizes the Miners rule node fatigue failure reliability model developed by Wirsching. Effects of load redistribution following the fatigue failure of a node on the time to failure of remaining unfailed nodes

  10. Should Activity-based Costing be Considered as the Costing Method of Choice for Total Quality Organizations?

    Microsoft Academic Search

    Steve R. Letza; Ken Gadd

    1994-01-01

    Managers of contemporary organizations are continually examining modern management techniques with a view to adopting best management practices and thus gain competitive advantage. The danger is that managers will adopt a functional stance and consider only narrowly defined management techniques contained within a functional specialism, for example finance or operations management, considering the inter-functional implications of developing a particular technique.

  11. Activity-based proteomics: enzymatic activity profiling in complex proteomes

    Microsoft Academic Search

    H. Schmidinger; A. Hermetter; R. Birner-Gruenberger

    2006-01-01

    Summary.  In the postgenomic era new technologies are emerging for global analysis of protein function. The introduction of active site-directed\\u000a chemical probes for enzymatic activity profiling in complex mixtures, known as activity-based proteomics has greatly accelerated\\u000a functional annotation of proteins. Here we review probe design for different enzyme classes including serine hydrolases, cysteine\\u000a proteases, tyrosine phosphatases, glycosidases, and others. These probes

  12. Experiments with an activity-based travel model

    Microsoft Academic Search

    TOON VAN DER HOORN

    1983-01-01

    Experiments are described with an activity-based travel model, estimated on a 7-day activity-diary survey. The first part of the paper describes the model system in its final form, together with its validation. The second part of the paper discusses some scenarios evaluated for the specific group of working men. Results are given with respect to a free Friday afternoon, extension

  13. Mapping seabird sensitivity to offshore wind farms.

    PubMed

    Bradbury, Gareth; Trinder, Mark; Furness, Bob; Banks, Alex N; Caldow, Richard W G; Hume, Duncan

    2014-01-01

    We present a Geographic Information System (GIS) tool, SeaMaST (Seabird Mapping and Sensitivity Tool), to provide evidence on the use of sea areas by seabirds and inshore waterbirds in English territorial waters, mapping their relative sensitivity to offshore wind farms. SeaMaST is a freely available evidence source for use by all connected to the offshore wind industry and will assist statutory agencies in assessing potential risks to seabird populations from planned developments. Data were compiled from offshore boat and aerial observer surveys spanning the period 1979-2012. The data were analysed using distance analysis and Density Surface Modelling to produce predicted bird densities across a grid covering English territorial waters at a resolution of 3 km×3 km. Coefficients of Variation were estimated for each grid cell density, as an indication of confidence in predictions. Offshore wind farm sensitivity scores were compiled for seabird species using English territorial waters. The comparative risks to each species of collision with turbines and displacement from operational turbines were reviewed and scored separately, and the scores were multiplied by the bird density estimates to produce relative sensitivity maps. The sensitivity maps reflected well the amassed distributions of the most sensitive species. SeaMaST is an important new tool for assessing potential impacts on seabird populations from offshore development at a time when multiple large areas of development are proposed which overlap with many seabird species' ranges. It will inform marine spatial planning as well as identifying priority areas of sea usage by marine birds. Example SeaMaST outputs are presented. PMID:25210739

  14. About offshore resource assessment with floating lidars with special respect to turbulence and extreme events

    NASA Astrophysics Data System (ADS)

    Gottschall, J.; Wolken-Möhlmann, G.; Lange, B.

    2014-12-01

    Offshore resource assessment with lidars on floating platforms is a flexible and particularly cost-effective alternative to the conventional meteorological mast solution, that is considered as onshore state-of-the-art transferred to offshore sites, and may enable better and more complete wind resource assessments for the growing offshore wind sector. Wind lidar technology, and remote sensing in general, has already been proven to be a very promising technology for resource assessment and power performance testing onshore. For offshore applications and on floating platforms in particular, the motions from the floating base have to be considered in addition, affecting the wind measurements significantly and causing systematic measurement errors. We have studied the motions and the corresponding influences on lidar measurements generated by different possible offshore platforms – vessels or buoys – both in detailed simulations as well as first validation experiments. In addition to this, we have developed motion compensation algorithms that allow to correct the affected measurements and retrieve the undisturbed wind data. The motions considered and studied comprise rotations as well as translations in all six degrees of freedom. For the evaluation of the motion-affected and corrected wind data in this paper, special attention is paid to the measurement of turbulence as well as extreme wind events. The research question to be answered is if a lidar device placed on a floating platform is capable of measuring more or less the same statistics of extreme wind events as a fixed lidar device. Quantities to be investigated are: the turbulence intensity as well as the statistics of maximum wind speed values within a 10-min period, but also wind speed increments on different time scales. At this, obviously two issues are to be discussed – the influence of the lidar measurement principle on the recording of extreme wind events, and the additional impact of the superimposed motions of the floating platform.

  15. The effectiveness of 3-D marine systems as an exploration tool in the offshore Niger Delta

    SciTech Connect

    Idowu, A.O. (Nigerian National Petroleum Corp., Lagos (Nigeria))

    1993-09-01

    From inception in 1984, three-dimensional (3-D) marine surveys have been used widely for field development where commercial hydrocarbons were known to exist in Nigeria. The high-trace density and full 3-D migration provide a data set that allows detailed interpretation of complex geologic structures and, in many cases, provides good stratigraphic information as well. The result has been better placement of development wells, making field development more efficient and cost effective. Previous application of the 3-d method (i.e., reconaissance 3-D) as an exploration tool in 1987 has demonstrated its effectiveness for predrilling detailing of prospects in offshore Niger Delta in a situation where a large volume of seismic data were acquired at relatively reduced unit costs. The technique involves acquiring data along a line every 200 m spacing, while interpretation in 3-D data processing is applied for subsequent 3-D migration. Based on pattern recognition of events on the input traces, the links are established to allow traces to be formed between input locations by comparing several attributes of events on neighboring traces. A case history example from the offshore Niger delta shows that the collection costs for the reconnaissance 3-D method are comparable to two-dimensional detailing based on similar line kilometer and time duration for the survey. A trade-off between cost and technical specifications can be programmed by focusing on the geologic objective. The technique brings the advantage of 3-D methods, but not their costs, to the exploration phase of the search for petroleum, and it is highly recommended for exploration in frontier areas, particularly the deep offshore of the Niger Delta.

  16. Offshore Wind Guidance Document: Oceanography and Sediment Stability (Version 1) Development of a Conceptual Site Model.

    SciTech Connect

    Roberts, Jesse D.; Jason Magalen; Craig Jones

    2014-06-01

    This guidance document provide s the reader with an overview of the key environmental considerations for a typical offshore wind coastal location and the tools to help guide the reader through a thoro ugh planning process. It will enable readers to identify the key coastal processes relevant to their offshore wind site and perform pertinent analysis to guide siting and layout design, with the goal of minimizing costs associated with planning, permitting , and long - ter m maintenance. The document highlight s site characterization and assessment techniques for evaluating spatial patterns of sediment dynamics in the vicinity of a wind farm under typical, extreme, and storm conditions. Finally, the document des cribe s the assimilation of all of this information into the conceptual site model (CSM) to aid the decision - making processes.

  17. Development of Fully Coupled Aeroelastic and Hydrodynamic Models for Offshore Wind Turbines: Preprint

    SciTech Connect

    Jonkman, J. M.; Sclavounos, P. D.

    2006-01-01

    Aeroelastic simulation tools are routinely used to design and analyze onshore wind turbines, in order to obtain cost effective machines that achieve favorable performance while maintaining structural integrity. These tools employ sophisticated models of wind-inflow; aerodynamic, gravitational, and inertial loading of the rotor, nacelle, and tower; elastic effects within and between components; and mechanical actuation and electrical responses of the generator and of control and protection systems. For offshore wind turbines, additional models of the hydrodynamic loading in regular and irregular seas, the dynamic coupling between the support platform motions and wind turbine motions, and the dynamic characterization of mooring systems for compliant floating platforms are also important. Hydrodynamic loading includes contributions from hydrostatics, wave radiation, and wave scattering, including free surface memory effects. The integration of all of these models into comprehensive simulation tools, capable of modeling the fully coupled aeroelastic and hydrodynamic responses of floating offshore wind turbines, is presented.

  18. Activity based chemical proteomics: profiling proteases as drug targets.

    PubMed

    Heal, William Percy; Wickramasinghe, Sasala Roshinie; Tate, Edward William

    2008-09-01

    The pivotal role of proteases in many diseases has generated considerable interest in their basic biology, and in the potential to target them for chemotherapy. Although fundamental to the initiation and progression of diseases such as cancer, diabetes, arthritis and malaria, in many cases their precise role remains unknown. Activity-based chemical proteomics-an emerging field involving a combination of organic synthesis, biochemistry, cell biology, biophysics and bioinformatics-allows the detection, visualisation and activity quantification of whole families or selected sub-sets of proteases based upon their substrate specificity. This approach can be applied for drug target/lead identification and validation, the fundamentals of drug discovery. The activity-based probes discussed in this review contain three key features; a 'warhead' (binds irreversibly but selectively to the active site), a 'tag' (allowing enzyme 'handling', with a combination of fluorescent, affinity and/or radio labels), and a linker region between warhead and tag. From the design and synthesis of the linker arise some of the latest developments discussed here; not only can the physical properties (e.g., solubility, localisation) of the probe be tuned, but the inclusion of a cleavable moiety allows selective removal of tagged enzyme from affinity beads etc. The design and synthesis of recently reported probes is discussed, including modular assembly of highly versatile probes via solid phase synthesis. Recent applications of activity-based protein profiling to specific proteases (serine, threonine, cysteine and metalloproteases) are reviewed as are demonstrations of their use in the study of disease function in cancer and malaria. PMID:18690889

  19. Low cost country sourcing and its effects on the total cost of ownership structure for a medical devices manufacturer

    Microsoft Academic Search

    Matthias Weber; Michael Hiete; Lars Lauer; Otto Rentz

    2010-01-01

    In this paper, we describe a total cost of ownership (TCO) method as an activity-based costing (ABC) application along the value chain to measure and analyse the costs of international sourcing activities. We further describe the method's implementation for a manufacturer of high-tech medical devices. For this case study, we analyse the effects of shifting purchasing volume from traditional procurement

  20. Potential standards support for activity-based GeoINT

    NASA Astrophysics Data System (ADS)

    Antonisse, Jim

    2012-06-01

    The Motion Imagery Standards Board (MISB) is engaged in multiple initiatives that may provide support for Activity-Based GeoINT (ABG). This paper describes a suite of approaches based on previous MISB work on a standards-based architecture for tracking. It focuses on ABG in the context of standardized tracker results, and shows how the MISB tracker formulation can formalize important components of the ABG problem. The paper proposes a grammar-based formalism for the reporting of activities within a stream of FMV or wide-area surveillance data. Such a grammar would potentially provide an extensible descriptive language for ABG across the community.

  1. Uses of motion imagery in activity-based intelligence

    NASA Astrophysics Data System (ADS)

    Lash, Thomas D.

    2013-05-01

    Activity-Based Intelligence (ABI) was defined by the Office of the Undersecretary of Defense for Intelligence as "a discipline of intelligence where the analysis and subsequent collection is focused on activity and transactions associated with an entity, population, or area of interest." ABI is inherently multi-INT, and motion imagery is a rich data source for ABI analysis. Motion imagery provides a unique temporal aspect which is critical for activity detection and classification. Additionally, motion imagery tends to have high spatial oversampling useful for determining activities and patterns above the noise threshold.

  2. The geotechnical centrifuge in offshore engineering

    SciTech Connect

    Murff, J.D.

    1996-12-31

    One of the greatest needs in offshore geotechnical engineering is for large scale test measurements on which to calibrate design procedures. The geotechnical centrifuge offers at least a partial remedy. Because it allows one to properly simulate stresses, it is a legitimate, relatively inexpensive option to full scale field testing. As such it is a valuable technique and can be an excellent complement to laboratory tests, 1-g model tests and numerical analyses. However, it has not been widely used by industry even though the capability has existed for almost thirty years. This paper argues that this technology should gain acceptance beyond the research community. The paper presents an overview of centrifuge principles, philosophies of use, and limitations of the technique. For illustration, several actual applications of centrifuge testing for complex offshore problems are described. Results are shown to provide important insights into prototype behavior and to agree well with full scale measurements where these are available.

  3. The Offshore East African Rift System

    NASA Astrophysics Data System (ADS)

    Franke, D.; Klimke, J.; Jokat, W.; Stollhofen, H.; Mahanjane, S.

    2014-12-01

    Numerous studies have addressed various aspects of the East African Rift system but surprisingly few on the offshore continuation of the south-eastern branch of the rift into the Mozambique Channel. The most prominent article has been published almost 30 years ago by Mougenot et al. (1986) and is based on vintage seismic data. Several studies investigating earthquakes and plate motions from GPS measurements reveal recent deformation along the offshore branch of the East African Rift system. Slip vectors from earthquakes data in Mozambique's offshore basins show a consistent NE direction. Fault plane solutions reveal ~ E-W extensional failure with focal depth clustering around 19 km and 40 km, respectively. Here, we present new evidence for neotectonic deformation derived from modern seismic reflection data and supported by additional geophysical data. The modern rift system obviously reactivates structures from the disintegration of eastern Gondwana. During the Jurassic/Cretaceous opening of the Somali and Mozambique Basins, Madagascar moved southwards along a major shear zone, to its present position. Since the Miocene, parts of the shear zone became reactivated and structurally overprinted by the East African rift system. The Kerimbas Graben offshore northern Mozambique is the most prominent manifestation of recent extensional deformation. Bathymetry data shows that it deepens northwards, with approximately 700 m downthrown on the eastern shoulder. The graben can be subdivided into four subbasins by crosscutting structural lineaments with a NW-SE trend. Together with the N-S striking graben-bounding faults, this resembles a conjugate fault system. In seismic reflection data normal faulting is distinct not only at the earthquake epicenters. The faults cut through the sedimentary successions and typically reach the seafloor, indicating ongoing recent deformation. Reference: Mougenot, D., Recq, M., Virlogeux, P., and Lepvrier, C., 1986, Seaward extension of the East African Rift: Nature, v. 321, p. 599-603

  4. Platforms will handle sour streams offshore India

    SciTech Connect

    NONE

    1997-07-21

    The recently installed Panna facilities, offshore the west coast of India, are designed to produce 50,000 b/d of highly paraffinic, sour oil, 180 MM-scfd of sour gas, and 100,000 bw/d. The field lies in about 154 ft of water. Enron Oil and Gas India Ltd. is operator. Enercon Engineering Inc., Houston, provided detailed design, procurement, and inspection services for the development that includes installation of six platforms and 22 pipelines.

  5. Float pump offshore wave energy converters

    SciTech Connect

    Nielsen, K. [Danish Wave Power Aps, Virum (Denmark)

    1996-12-31

    This paper will describe the numerical design models developed by DWP and ES-Consult as part of the Off-shore Wave Energy Converter project OWEC-1 supported by the European Union under the JOULE initiative. Offshore Wave Power Plants composed of float pump systems, has been investigated. Modeling techniques required to provide reliable methods for the predicted hydrodynamic behavior of the floats, their performance has been assessed and standardized criteria and techniques for the design has been provided. The systems investigated and the numerical time domain models developed will be described. The DWP/ES-Consult design models include both heave and surge motion of the device motion. The hydrodynamics are based on the long wave approximation of wave exiting forces as well as nonlinear drag and lift-forces, limits for the buoyancy force and variation of added mass with submergence are included in the calculations. The numerical models developed by DWP/ES-Consult are intended as tools for the structural design. The results in medium waves are compared to more exact hydrodynamic models (heave only) developed at Chalmars University and at NTH norwegian Technical University. Results are compared to model tests and real sea measurements. The design of the float geometry`s and power takeoff has not been optimized. The scope has been to compare and provide tools and guidelines for time domain modeling of offshore wave energy converters as a basis for further optimization.

  6. Smoke dispersion around complex offshore structure

    SciTech Connect

    Moros, A.; Webb, S.; Fells, C. [BP International, Sunbury-on-Thames (United Kingdom); Bonn, R. [BP Exploration, Aberdeen (United Kingdom)

    1994-12-31

    Fires on offshore installations can produce large quantities of smoke. Although it is important to know the fire behavior and its effects on the structures it is equally important to know the smoke behavior in and around the platform. High levels of smoke can affect the safety of the personnel. This work describes a comparison of a Computational Fluid Dynamics (CFD) model with field experiments conducted on a North Sea Platform. The purpose of the work is to use CFD to assess the smoke behavior on offshore platforms. To validate the model for such studies, a series of experiments were performed during which small amounts ({approximately}0.5 kg/s) of synthetic smoke were released at given locations on the platform. The resulting plume concentration was measured at four points around the platform-n using optical densitometers. During the experiments the wind field at different locations around the platform was also measured. The results of this validation indicate that simulation tools can be used to predict global smoke movement and concentrations in complex offshore structures to within the required accuracies. On average, the predicted wind flow is to within a factor of 2 of the measured values and in some areas to within 50%. The predicted concentrations are to within a factor of two of the measured values except one point where the predictions were an order of magnitude less than the measurements.

  7. 26th Annual offshore technology conference: 1994 Proceedings

    SciTech Connect

    Not Available

    1994-01-01

    This conference represents the world's largest and most comprehensive technical conference and exhibition on offshore resource development. The four proceedings volumes have been separated by major areas of interest with this volume containing papers relative to design of offshore platforms and marine riser systems. Papers deal with design, installation, fabrication, transport systems, mooring devices, repair methods, and development of satellite production facilities. Case histories on various offshore oil and gas fills are discussed along with economics of some applications and designs.

  8. 78 FR 34568 - Special Local Regulation; Heritage Coast Offshore Grand Prix, Tawas Bay; East Tawas, MI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-10

    ...Regulation; Heritage Coast Offshore Grand Prix, Tawas Bay; East Tawas, MI AGENCY...after the Heritage Coast Offshore Grand Prix boat race. This special local regulation...Regulation; Heritage Coast Offshore Grand Prix, East Tawas, MI. (a) Regulated...

  9. 46 CFR 11.468 - Officer endorsements for mobile offshore drilling units.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...Officer endorsements for mobile offshore drilling units. 11.468 Section 11.468...Officer endorsements for mobile offshore drilling units. Officer endorsements for service on mobile offshore drilling units (MODUs) authorize...

  10. 46 CFR 2.10-130 - Fees for examination of foreign mobile offshore drilling units.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...for examination of foreign mobile offshore drilling units. 2.10-130 Section 2.10-130...for examination of foreign mobile offshore drilling units. Each foreign mobile offshore drilling unit must pay: (a) For...

  11. 46 CFR 2.10-130 - Fees for examination of foreign mobile offshore drilling units.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...for examination of foreign mobile offshore drilling units. 2.10-130 Section 2.10-130...for examination of foreign mobile offshore drilling units. Each foreign mobile offshore drilling unit must pay: (a) For...

  12. 46 CFR 11.468 - Officer endorsements for mobile offshore drilling units.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...Officer endorsements for mobile offshore drilling units. 11.468 Section 11.468...Officer endorsements for mobile offshore drilling units. Officer endorsements for service on mobile offshore drilling units (MODUs) authorize...

  13. 46 CFR 11.468 - Officer endorsements for mobile offshore drilling units.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...Officer endorsements for mobile offshore drilling units. 11.468 Section 11.468...Officer endorsements for mobile offshore drilling units. Officer endorsements for service on mobile offshore drilling units (MODUs) authorize...

  14. 46 CFR 2.10-130 - Fees for examination of foreign mobile offshore drilling units.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...for examination of foreign mobile offshore drilling units. 2.10-130 Section 2.10-130...for examination of foreign mobile offshore drilling units. Each foreign mobile offshore drilling unit must pay: (a) For...

  15. 46 CFR 2.10-130 - Fees for examination of foreign mobile offshore drilling units.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...for examination of foreign mobile offshore drilling units. 2.10-130 Section 2.10-130...for examination of foreign mobile offshore drilling units. Each foreign mobile offshore drilling unit must pay: (a) For...

  16. 46 CFR 11.468 - Officer endorsements for mobile offshore drilling units.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...Officer endorsements for mobile offshore drilling units. 11.468 Section 11.468...Officer endorsements for mobile offshore drilling units. Officer endorsements for service on mobile offshore drilling units (MODUs) authorize...

  17. 46 CFR 2.10-130 - Fees for examination of foreign mobile offshore drilling units.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...for examination of foreign mobile offshore drilling units. 2.10-130 Section 2.10-130...for examination of foreign mobile offshore drilling units. Each foreign mobile offshore drilling unit must pay: (a) For...

  18. 75 FR 29397 - National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-26

    ...Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling By the authority...Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling (the ``Commission...and mitigating the impact of, oil spills associated with offshore...

  19. Mooring Line Modelling and Design Optimization of Floating Offshore Wind Turbines

    E-print Network

    Victoria, University of

    Mooring Line Modelling and Design Optimization of Floating Offshore Wind Turbines by Matthew Thomas Mooring Line Modelling and Design Optimization of Floating Offshore Wind Turbines by Matthew Thomas Jair. Curran Crawford, Supervisor (Department of Mechanical Engineering) ABSTRACT Floating offshore wind

  20. 75 FR 12560 - Certificate of Alternative Compliance for the Offshore Supply Vessel BUMBLE BEE

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-16

    ...maneuver within close proximity of offshore platforms. Due to the design of the...susceptible to damage from offshore platforms. Locating the sidelights 12...maneuvering within close proximity to offshore platforms. In addition the forward...

  1. 75 FR 20372 - Certificate of Alternative Compliance for the Offshore Supply Vessel RIG RUNNER

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-19

    ...89, has been issued for the offshore supply vessel RIG RUNNER, O...maneuver within close proximity of offshore platforms. The forward masthead light...working in close proximity to offshore platforms. Furthermore the...

  2. 75 FR 418 - Certificate of Alternative Compliance for the Offshore Supply Vessel KELLY ANN CANDIES

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-05

    ...INFORMATION: Background and Purpose The offshore supply vessel KELLY ANN CANDIES will be used for offshore supply operations. Full compliance...to maneuver within close proximity of offshore platforms and conduct helicopter...

  3. 75 FR 32802 - Certificate of Alternative Compliance for the Offshore Supply Vessel ROSS CANDIES

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-09

    ...part 81, has been issued for the offshore supply vessel ROSS CANDIES, O...maneuver within close proximity of offshore platforms. The horizontal distance between...part 81, has been issued for the offshore supply vessel ROSS CANDIES,...

  4. 75 FR 36106 - Certificate of Alternative Compliance for the Offshore Supply Vessel SOUTHERN CROSS

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-24

    ...maneuver within close proximity to offshore platforms. Placing the aft masthead...susceptible to damage from offshore platforms. Locating the side lights...maneuvering within close proximity to offshore platforms. The Certificate of...

  5. 75 FR 32803 - Certificate of Alternative Compliance for the Offshore Supply Vessel JONCADE

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-09

    ...89, has been issued for the offshore supply vessel JONCADE, O...maneuver within close proximity of offshore platforms. The forward masthead light...working in close proximity to offshore platforms. Furthermore the...

  6. 75 FR 39956 - Certificate of Alternative Compliance for the Offshore Supply Vessel MARIE ELISE

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-13

    ...maneuver within close proximity to offshore platforms. Placing the aft masthead...susceptible to damage from offshore platforms. Locating the side lights...maneuvering within close proximity to offshore platforms. The Certificate of...

  7. 75 FR 29569 - Certificate of Alternative Compliance for the Offshore Supply Vessel JANSON R. GRAHAM

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-26

    ...89, has been issued for the offshore supply vessel JANSON R. GRAHAM...maneuver within close proximity of offshore platforms. The forward masthead light...working in close proximity to offshore platforms. Additionally, the...

  8. The outsourcing and offshoring competitive landscape and its uncertainties

    E-print Network

    Sultan, Ziad R. (Ziad Raymond)

    2005-01-01

    The outsourcing and offshoring competitive landscape is rapidly and constantly evolving, presenting new challenges and opportunities for providers and customers alike. Outsourcing providers are pressured to increase the ...

  9. Operational Impacts of Large Deployments of Offshore Wind (Poster)

    SciTech Connect

    Ibanez, E.; Heaney, M.

    2014-10-01

    The potential operational impact of deploying 54 GW of offshore wind in the United States was examined. The capacity was not evenly distributed; instead, it was concentrated in regions with better wind quality and close to load centers (Table 1). A statistical analysis of offshore wind power time series was used to assess the effect on the power system. The behavior of offshore wind resembled that of onshore wind, despite the former presenting higher capacity factors, more consistent power output across seasons, and higher variability levels. Thus, methods developed to manage onshore wind variability can be extended and applied to offshore wind.

  10. Abundance- and Activity-Based Proteomics in Platelet Biology

    PubMed Central

    Holly, Stephen P.; Chen, Xian; Parise, Leslie V.

    2011-01-01

    Human platelets are thought to express approximately 2000–3000 proteins, but post-translational modifications, alternatively spliced variants and a rich diversity of vertebrate domain architectures likely make this a conservative estimate. Even though rapidly advancing proteomic techniques have facilitated the identification of roughly one third of the platelet proteome, a combination of abundance-based and activity-based proteomics methodologies is needed for elucidation of platelet functional characteristics including the definition of a “core proteome” and recognition of diverse enzyme activity profiles associated with various physiological states. In this review, we describe the latest mass spectrometry-based techniques capable of providing some of these physiological details required for more comprehensive evaluation of the human platelet repertoire. PMID:22308104

  11. Infrared inspection applied to offshore platforms: Petrobras experience at Campos Basin

    NASA Astrophysics Data System (ADS)

    Verdini, Edson A.; Veratti, Attilio B.

    2002-03-01

    Bacia de Campos (Rio de Janeiro - Brazil) is one of the biggest offshore petroleum fields in the world today. In June 2001, Bacia de Campos, having more than 490 oil wells, 34 offshore platforms and 7 modified ships in operation, reached 1,3 million barrels/day. If compared to OPEP countries only nine of them got an average production higher than 1 million barrels/day in 2000, which means it can be placed on the 10th position in the rank of oil producers. In this context this work aims not only to show the results achieved within the introduction of thermographic inspections in offshore oil production (platforms and ships), but also the financial results (ROI - Return of Investment) considering the use of this particular technique. Bacia de Campos got a ROI around 7 million dollars in the last 4 years, which means a hundred times higher than the total cost of thermographic services in the same period. As far as we know this is one of the best results already reported in the world. We also present the methodology applied to analyze thermal anomalies in electrical components and data management software, including advanced Digital Reports sent via Internet.

  12. Motion performance and mooring system of a floating offshore wind turbine

    NASA Astrophysics Data System (ADS)

    Zhao, Jing; Zhang, Liang; Wu, Haitao

    2012-09-01

    The development of offshore wind farms was originally carried out in shallow water areas with fixed (seabed mounted) structures. However, countries with limited shallow water areas require innovative floating platforms to deploy wind turbines offshore in order to harness wind energy to generate electricity in deep seas. The performances of motion and mooring system dynamics are vital to designing a cost effective and durable floating platform. This paper describes a numerical model to simulate dynamic behavior of a new semi-submersible type floating offshore wind turbine (FOWT) system. The wind turbine was modeled as a wind block with a certain thrust coefficient, and the hydrodynamics and mooring system dynamics of the platform were calculated by SESAM software. The effect of change in environmental conditions on the dynamic response of the system under wave and wind loading was examined. The results indicate that the semi-submersible concept has excellent performance and SESAM could be an effective tool for floating wind turbine design and analysis.

  13. Towards Sustainable Offshore Outsourcing: An Empirical Study on Canadian Manufacturing Small and Medium Size

    E-print Network

    Towards Sustainable Offshore Outsourcing: An Empirical Study on Canadian Manufacturing Small Manufacturing small and medium size enterprises (SMEs) are increasingly jumping onto the offshore outsourcing

  14. Offshore Wind Turbines - Estimated Noise from Offshore Wind Turbine, Monhegan Island, Maine: Environmental Effects of Offshore Wind Energy Development

    SciTech Connect

    Aker, Pamela M.; Jones, Anthony M.; Copping, Andrea E.

    2010-11-23

    Deep C Wind, a consortium headed by the University of Maine will test the first U.S. offshore wind platforms in 2012. In advance of final siting and permitting of the test turbines off Monhegan Island, residents of the island off Maine require reassurance that the noise levels from the test turbines will not disturb them. Pacific Northwest National Laboratory, at the request of the University of Maine, and with the support of the U.S. Department of Energy Wind Program, modeled the acoustic output of the planned test turbines.

  15. Trade Costs

    Microsoft Academic Search

    James E. Anderson; Eric van Wincoop

    2004-01-01

    This paper surveys the measurement of trade costs --- what we know, and what we don't know but may usefully attempt to find out. Partial and incomplete data on direct measures of costs go together with inference on implicit costs from trade flows and prices. Total trade costs in rich countries are large. The ad valorem tax equivalent is about

  16. The offshore-ring: A new system design for the open ocean aquaculture of macroalgae

    Microsoft Academic Search

    Bela Hieronymus Buck; Cornelia Maria Buchholz

    2004-01-01

    Mass culture of benthic macroalgae under rough offshore conditions in the North Sea requires rigid culture support systems that cannot only withstand rough weather conditions but can also be effectively handled while at the same time retain the cultured species. Various carrier constructions and different mooring systems were tested. Laminaria saccharina grew on all of these carriers with initially high

  17. Optimizing safety by inherent offshore platform design

    SciTech Connect

    Mansfield, D.P. [AEA Technology, Risley (United Kingdom); Kletz, T.A. [Kletz (T.A.), Cheadle (United Kingdom); Al-Hassan, T. [HSE Offshore Safety Div., Bootle (United Kingdom)

    1996-12-31

    Following the Cullen Report into the Piper Alpha Disaster, UK Operators and the Health and Safety Executive Offshore Safety Division (OSD) have been working together to bring in a new safety regime, progressively replacing prescriptive requirements with goal setting regulations to enable a more integrated approach to hazard management. This is allowing the industry to be more flexible and specific about the way it manages hazards throughout the life of the installation. In particular it is encouraging a hazards based focus to design which is changing the way installations are designed and which would promote the use of inherently safer design. Conventional installation design often relies on standard specification engineered safety systems such as shutdown systems and water deluge to control hazards, with less attention paid to minimizing the hazards at source. These add-on safety systems can be expensive to install and maintain, and may only be effective in some circumstances. This paper reports on a pilot study sponsored by OSD, involving offshore operators and design contractors, to assess the status of inherent safety in offshore installation design in the UK and to encourage its further use spreading best practice and examples of the benefits of the approach. The paper outlines the key considerations for implementation of inherently safer design, and describes some of the benefits these can bring to the industry. It also highlights the role regulations, industry initiatives and guidance can play in promoting inherently safer design both now and in the future. The study`s findings suggest that awareness of the inherent safety principles is limited to some safety specialists and designers, but that the industry is beginning to recognize the role and benefits of inherent safety. As a result its principles are starting to appear in some design procedures and hazard management guides.

  18. Visual Simulation of Offshore Liquefied Natural Gas (LNG) Terminals

    E-print Network

    Standiford, Richard B.

    Visual Simulation of Offshore Liquefied Natural Gas (LNG) Terminals in a Decision-Making Context1, Berkeley. 3/ Liquified Natural Gas Act Stats, 1977, Chap. 855, Page 2506 (effective Sept. 17, 1977 potential offshore Liquified Natural Gas (LNG) sites and the types of terminals that might occupy those

  19. Quantifying Offshore Wind Resources from Satellite Wind Maps

    E-print Network

    Pryor, Sara C.

    through footprint area averaging per image. Secondly, these data are averaged in time to provide a local of the Horns Rev wind farm is quantified from satellite SAR images and compared with state-of-the-art wake; offshore wake #12;It is highly innovative to estimate the offshore wind resource based on satellite images

  20. Offshore spawning by the portunid crab Scylla serrata (Crustacea: Decapoda)

    Microsoft Academic Search

    B. J. Hill

    1994-01-01

    The portunid crabScylla serrata (Forskål) is shown to migrate offshore to spawn. Records of 447S. serrata caught as bycatch by trawlers in the tropical waters of northern Australia were analysed with respect to area, depth, distance offshore and month of capture as well as the sex and size of the crabs and whether the females were ovigerous. The crabs were

  1. Ris National Laboratory Satellite SAR applied in offshore wind

    E-print Network

    Risø National Laboratory Satellite SAR applied in offshore wind ressource mapping: possibilities is to quantify the regional offshore wind climate for wind energy application based on satellite SAR ·Study of 85 ERS-2 SAR scenes ·Using CMOD4 (Stoffelen and Anderson, 1997) Wind from SAR #12;Study site: Horns Rev

  2. OPTIMAL DEVELOPMENT PLANNING OF OFFSHORE OIL AND GAS FIELD

    E-print Network

    Grossmann, Ignacio E.

    , well drilling schedule and production profiles of oil, water and gas in each time period. The model canOPTIMAL DEVELOPMENT PLANNING OF OFFSHORE OIL AND GAS FIELD INFRASTRUCTURE UNDER COMPLEX FISCAL Pittsburgh, PA 15213 Abstract The optimal development planning of offshore oil and gas fields has received

  3. Anchoring systems for marine renewable energies offshore platforms

    Microsoft Academic Search

    R. Rodriguez; I. Gorrochategui; C. Vidal; R. Guanche; J. Canizal; J. A. Fraguela; V. Diaz

    2011-01-01

    At present no specific methodologies have been developed for the design of the anchoring systems of offshore moored platforms, individual and in farm configuration, for obtaining renewable energy. This paper presents a R&D project whose objective is to cover this lack of knowledge. The scope of the project involves several areas of scientific expertise such as Soil Mechanics, Hydrodynamics, Offshore

  4. Riser and wellhead monitoring for improved offshore drilling operations

    E-print Network

    Nørvåg, Kjetil

    Riser and wellhead monitoring for improved offshore drilling operations Gullik A. Jensen, Ph ­ Offshore drilling with riser ­ On the riser and the riser joints ­ On damage and consequences · Operational Page 2 #12;The KONGSBERG Riser Management Systems (RMS) Integrity of drilling riser based on monitoring

  5. EGG LOSS DURING INCUBATION FROM OFFSHORE NORTHERN LOBSTERS (DECAPODA: HOMARIDAE)

    E-print Network

    EGG LOSS DURING INCUBATION FROM OFFSHORE NORTHERN LOBSTERS (DECAPODA: HOMARIDAE) HERBERT C. PERKINS' ABSTRACT Egg loss during incubation from offshore northern lobsters, Homaru8 americanus Milne Edwards, was estimated by counting the eggs of 196 females. The lobsters were captured along the continental shelf off

  6. Offshore Heavy Oil in Campos Basin: The Petrobras Experience

    Microsoft Academic Search

    A. C. Capeleiro Pinto; C. C. M. Branco; J. S. de Matos; P. M. Vieira; S. da Silva Guedes; C. Pedroso Jr; A. C. Decnop Coelho; M. M. Ceciliano

    2003-01-01

    This paper was selected for presentation by an OTC Program Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper, as presented, have not been reviewed by the Offshore Technology Conference and are subject to correction by the author(s). The material, as presented, does not necessarily reflect any position of the Offshore Technology

  7. A critique of offshore liquefied natural gas (LNG) terminal policy

    Microsoft Academic Search

    William D. Whitmore; Vern K. Baxter; Shirley L. Laska

    2009-01-01

    The Maritime Transportation Security Act of 2002 amended the Deepwater Port Act of 1974 to permit the construction of offshore liquefied natural gas (LNG) terminals. Terminals with environmentally destructive open-loop regasification systems were quickly approved in the Gulf of Mexico. This study analyzed the political methods of the George W. Bush administration to determine how it developed offshore LNG. Findings

  8. DISCIPLINER LES CENTRES FINANCIERS OFFSHORE : INCITATION PAR LA PRESSION INTERNATIONALE

    Microsoft Academic Search

    Arnaud BOURGAIN; Patrice PIERETTI

    2007-01-01

    Since Offshore Financial Centers (OFCs) generally provide bank secrecy to foreign investors they are likely to attract criminal money. Recently however, academic writings have pointed to the fact that OFCs might have beneficial economic effects. In this context, we address the question whether pressure exerted by international organizations on offshore financial centers may be effective enough to enforce compliance with

  9. Oil rigs and offshore sport fishing in Louisiana

    Microsoft Academic Search

    R. Dugas; V. Guillory; M. Fischer

    2009-01-01

    Forty years ago, offshore sport fishing in Louisiana was almost nonexistent. Offshore oil drilling platforms are the primary cause of the present increase in sport fishing in this area. Algae and other organisms forming the first step in the food chain cluster around the subsurface structures of the rigs, attracting fish that seek food and shelter. Major game species frequenting

  10. Oil rigs and offshore sport fishing in Louisiana

    Microsoft Academic Search

    R. Dugas; V. Guillory; M. Fischer

    1979-01-01

    The environmental effects of Louisiana's offshore oil platforms are discussed with regard to an increase in sport-fishing. The effects upon fish populations, species diversity, underwater habitats, and food chains from the offshore platforms are obtained from several summaries of studies undertaken between 1970-1979. (DS)

  11. Wave Models for Offshore Wind Turbines Puneet Agarwal

    E-print Network

    Manuel, Lance

    Wave Models for Offshore Wind Turbines Puneet Agarwal§ and Lance Manuely Department of Civil practice for modeling waves on offshore wind turbines is limited to the representation of linear irregular for the turbine and for the input wind/wave conditions. While for the wind, inflow turbu- lence models are fairly

  12. RELIABILITY COMPARISON MODELS FOR OFFSHORE WIND TURBINES (OWT)

    E-print Network

    Bernstein, Joseph B.

    RELIABILITY COMPARISON MODELS FOR OFFSHORE WIND TURBINES (OWT) Yizhou Lu, T. M. Delorm, A. Christou of survivor functions R(t) of drive-trains, after 1 year of operation, between Offshore Wind Turbine (OWT) vs (Types1-4a) - horizontal axis turbines (3-6 MW) were selected for reliability modelling & technology

  13. Foundation modelling to assess dynamic behaviour of offshore wind turbines

    Microsoft Academic Search

    M. B. Zaaijer

    2006-01-01

    The dynamic behaviour of wind turbines at offshore locations is more complex than that of both onshore wind turbines and offshore platforms used in the oil and gas industry. In order to reduce the computational burden, the work presented in this paper aims at simplification of the dynamic model of the foundation, while maintaining sufficient accuracy. A stiffness matrix at

  14. The concept of self-maintained offshore wind turbines

    Microsoft Academic Search

    E. Echavarria; T. Tomiyama; G. J. W. van Bussel

    Summary The objective of on-going research on the concept of self-maintained offshore wind turbines is to develop a design methodology to increase the availability for offshore wind farms, by means of an intelligent maintenance system capable of responding to faults by reconfiguring the system or subsystems, without increasing service visits, economics, or complexity. The design methodology explained in the paper

  15. Taming Hurricanes With Arrays of Offshore Wind Turbines

    E-print Network

    Firestone, Jeremy

    Taming Hurricanes With Arrays of Offshore Wind Turbines Mark Z. Jacobson Cristina Archer, Willet #12;Representation of a vertically-resolved wind turbine in model Lines are model layers) or 50 m/s (destruction) speed. Can Walls of Offshore Wind Turbines Dissipate Hurricanes? #12;Katrina

  16. Loss of genetic diversity in Harpacticoida near offshore platforms

    Microsoft Academic Search

    P. A. Montagna

    1996-01-01

    Offshore oil and gas production platforms can be a source of chronic stress that could lead to sublethal impacts on resident benthic organisms. In June 1993 and January 1994, genetic diversity of Harpacticoida (Copepoda) living proximal to operating, offshore platforms in the Gulf of Mexico was estimated to test if platforms are associated with strong selective pressures. Because harpacticoids have

  17. Wind Resource Mapping for United States Offshore Areas: Preprint

    SciTech Connect

    Elliott, D.; Schwartz, M.

    2006-06-01

    The U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) is producing validated wind resource maps for priority offshore regions of the United States. This report describes the methodology used to validate the maps and to build a Geographic Information Systems (GIS) database to classify the offshore wind resource by state, water depth, distance from shore, and administrative unit.

  18. Structural monitoring of offshore platforms using impulse and relaxation response

    Microsoft Academic Search

    Lalu Mangal; V. G Idichandy; C Ganapathy

    2001-01-01

    Monitoring offshore platforms, long span bridges, high rise buildings, TV towers and other similar structures is essential for ensuring their safety in service. Continuous monitoring assumes even greater significance in the case of offshore platforms, which are highly susceptible to damage due to the corrosive environment and the continuous action of waves. Also, since a major part of the structure

  19. Determination of human error probabilities for offshore platform musters

    Microsoft Academic Search

    Dino G. DiMattia; Faisal I. Khan; Paul R. Amyotte

    2005-01-01

    The focus of this work is on prediction of human error probabilities during the process of emergency musters on offshore oil and gas production platforms. Due to a lack of human error databases, and in particular human error data for offshore platform musters, an expert judgment technique, the Success Likelihood Index Methodology (SLIM), was adopted as a vehicle to predict

  20. Cathodic protection retrofit of an offshore pipeline

    SciTech Connect

    Winters, R.H.; Holk, A.C. [Tenneco Energy, Houston, TX (United States)

    1997-09-01

    The cathodic protection anodes and corrosion coating on two 8-inch (203.2 mm) outside diameter (O.D.) offshore pipelines were damaged during deep water ({minus}380 feet, {minus}116 m) installation. In-situ methods for deep water inspection and repair of the pipelines` cathodic protection and coating systems were developed and performed. Methods are described in which underwater anode retrofits were performed and friction welding technology was used to re-attach anode leads. Standard procedures for underwater pipeline coating repair and remediation of damaged line pipe are provided.

  1. Ultrasonic thickness testing of aging offshore structures

    E-print Network

    Ellison, Brian Kirk

    1999-01-01

    August 1999 Major Subject: Civil Engineering ULTRASONIC THICKNESS TESTING OF AGING OFFSHORE STRUCTURES A Thesis by BRIAN KIRK ELLISON Submitted to Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... as series to show the longitudinal thickness variations. Averages among all rays and all rings were also plotted. For Member 01 (R), they are shown in Figs. 2. 7 to 2. 10. 0. 350 0. 340 0. 330 @ 0. 320 EQ 0. 310 Q 0. 300 ~o 0. 290 Z 0. 260 0. 270...

  2. High-alloy materials for offshore applications

    SciTech Connect

    Lemke, T.F.; Harris, J.A.

    1983-05-01

    High-alloy materials possessing good corrosion resistance in hot, sour brines are being seriously considered for offshore applications. These alloys are available in a wide range of strength levels which can be attained by the methods of cold working or precipitation hardening. Results of testing INCONEL alloys 625 and 718 and INCOLOY alloys 825 and 925 for resistance to general corrosion, hydrogen embrittlement, and stress-corrosion cracking (SCC) are presented. This paper also contrasts the range of mechanical properties available in precipitation-hardened materials with properties of cold-worked alloys.

  3. 2011 Cost of Wind Energy Review

    SciTech Connect

    Tegen, S.; Lantz, E.; Hand, M.; Maples, B.; Smith, A.; Schwabe, P.

    2013-03-01

    This report describes the levelized cost of energy (LCOE) for a typical land-based wind turbine installed in the United States in 2011, as well as the modeled LCOE for a fixed-bottom offshore wind turbine installed in the United States in 2011. Each of the four major components of the LCOE equation are explained in detail, such as installed capital cost, annual energy production, annual operating expenses, and financing, and including sensitivity ranges that show how each component can affect LCOE. These LCOE calculations are used for planning and other purposes by the U.S. Department of Energy's Wind Program.

  4. The potential role of offshore standby/rescue ships

    SciTech Connect

    McDonald, H.G.

    1985-01-01

    The loss of the drilling rig ''Sea Gem'' in 1966, in which thirteen people died, was perhaps the first occasion when a major accident connected with offshore explorations and production in the UK Sector of the North Sea resulted in multiple deaths. Since then, loss of life among offshore workers, either through major accidents or individuals falling overboard, has continued to occur throughout the various operational areas worldwide. One method of increasing the survival chances of maritime casualties associated with offshore installations is to ensure that a designated rescue vessel is always available to attempt a rescue. At present in the UK, Regulation 10 of the Offshore Installations (Emergency Producures) Regulations 1976, lays down that a standby vessel should be present within five miles of every manned offshore installation, ready to give assistance in an emergency, able to accommodate the entire crew of the installation, and provide aid for them all.

  5. Management of offshore wastes in the United States.

    SciTech Connect

    Veil, J. A.

    1998-10-22

    During the process of finding and producing oil and gas in the offshore environment operators generate a variety of liquid and solid wastes. Some of these wastes are directly related to exploration and production activities (e.g., drilling wastes, produced water, treatment workover, and completion fluids) while other types of wastes are associated with human occupation of the offshore platforms (e.g., sanitary and domestic wastes, trash). Still other types of wastes can be considered generic industrial wastes (e.g., scrap metal and wood, wastes paints and chemicals, sand blasting residues). Finally, the offshore platforms themselves can be considered waste materials when their useful life span has been reached. Generally, offshore wastes are managed in one of three ways--onsite discharge, injection, or transportation to shore. This paper describes the regulatory requirements imposed by the government and the approaches used by offshore operators to manage and dispose of wastes in the US.

  6. A COST ONTOLOGY FOR ENTERPRISE MODELLING K. D.(Donald) Tham, Mark S. Fox, Michael Gruninger

    E-print Network

    Fox, Mark S.

    A COST ONTOLOGY FOR ENTERPRISE MODELLING K. D.(Donald) Tham, Mark S. Fox, Michael Gruninger ontology and micro-theory of costing for enter- prise modelling that spans the knowledge representation of the enterprise belonging to the manufacturing or service sectors. Area: Cost Ontology, Activity-Based Costing

  7. Proceedings of the 15. international conference on offshore mechanics and arctic engineering -- OMAE 1996. Volume 1, Part B: Offshore technology

    SciTech Connect

    Chakrabarti, S.K. [ed.] [Chicago Bridge and Iron Technical Services Co., Plainfield, IL (United States); Pontes, M.T. [ed.] [Inst. Nacional de Engenharia e Tecnologia Industrial, Lisbon (Portugal); Maeda, Hisaaki [ed.] [Univ. of Tokyo (Japan); Falzarano, J. [ed.] [Univ. of New Orleans, LA (United States); Schofield, P. [ed.] [W.S. Atkins, Surrey (United Kingdom); Morrison, D. [ed.] [Shell E and P Technology Co., Houston, TX (United States)

    1996-12-31

    The 49 papers contained in Part B of Volume 1 are arranged under the following topical sections: Computational hydrodynamics; Floating and moored systems; Ocean energy technology; Hydrodynamic design of offshore structures; Design and operation of offshore structures; and Risers and cables. Most of the papers have been processed separately for inclusion on the data base.

  8. Copyright 2000, Offshore Technology Conference This paper was prepared for presentation at the 2000 Offshore Technology Conference held in

    E-print Network

    Griffiths, Gwyn

    Offshore Technology Conference held in Houston, Texas, 1Ð4 May 2000. This paper was selected that flexibility was fundamental to the technology design. Hence for Autosub-1 there was no fixed sensor suiteCopyright 2000, Offshore Technology Conference This paper was prepared for presentation at the 2000

  9. Gladden Pull-Apart Basin, offshore Belize

    SciTech Connect

    Morrice, S. (BNR Ltd., Denver, CO (United States))

    1993-02-01

    The junction of the American and Caribbean plates in Belize has created a complex structural setting for oil and gas exploration. Recent seismic offshore Belize has been used to identify three structural provinces, from west to east: a shallow thrust zone, a narrow upthrown wrench faulted zone and a deeper extensional basin, named the Gladden Pull-Apart Basin. Hydrocarbon leakage from recent fault movement appears to have depleted the shallow structures to the west, but the pull-apart basin has a thick sequence of low-frequency clay-dominated sealing rocks with the potential to preserve hydrocarbon accumulations in Cretaceous carbonate banks. These buried carbonate are of the same age and depositional environment of Mexico's Golden Lane/Tabasco Reforma carbonate banks which are world class giant fields. The Belize and Mexican carbonate banks are within the same Cretaceous depositional basin, the Peten Basin. Seismic interpretations in offshore Belize have been integrated with gravity and magnetic surveys. This provides additional support for the deep extensional basin. The location of the thick Cretaceous carbonate banks is better interpreted with the integration of these three geophysical tools. Airborne geochemical surveys were used to detect the presence of oil seeps on the east and west basin margins.

  10. Activity-based kinase profiling of approved tyrosine kinase inhibitors.

    PubMed

    Kitagawa, Daisuke; Yokota, Koichi; Gouda, Masaki; Narumi, Yugo; Ohmoto, Hiroshi; Nishiwaki, Eiji; Akita, Kensaku; Kirii, Yasuyuki

    2013-02-01

    The specificities of nine approved tyrosine kinase inhibitors (imatinib, dasatinib, nilotinib, gefitinib, erlotinib, lapatinib, sorafenib, sunitinib, and pazopanib) were determined by activity-based kinase profiling using a large panel of human recombinant active kinases. This panel consisted of 79 tyrosine kinases, 199 serine/threonine kinases, three lipid kinases, and 29 disease-relevant mutant kinases. Many potential targets of each inhibitor were identified by kinase profiling at the K(m) for ATP. In addition, profiling at a physiological ATP concentration (1 mm) was carried out, and the IC(50) values of the inhibitors against each kinase were compared with the estimated plasma-free concentration (calculated from published pharmacokinetic parameters of plasma C(trough) and C(max) values). This analysis revealed that the approved kinase inhibitors were well optimized for their target kinases. This profiling also implicates activity at particular off-target kinases in drug side effects. Thus, large-scale kinase profiling at both K(m) and physiological ATP concentrations could be useful in characterizing the targets and off-targets of kinase inhibitors. PMID:23279183

  11. Activity-Based Protein Profiling of Protein Arginine Methyltransferase 1†

    PubMed Central

    Obianyo, Obiamaka; Causey, Corey P.; Jones, Justin E.; Thompson, Paul R.

    2011-01-01

    The protein arginine methyltransferases (PRMTs) are SAM-dependent enzymes that catalyze the mono- and di-methylation of peptidyl arginine residues. PRMT1 is the founding member of the PRMT family, and this isozyme is responsible for methylating ~85% of the arginine residues in mammalian cells. Additionally, PRMT1 activity is aberrantly upregulated in heart disease and cancer. As a part of a program to develop isozyme specific PRMT inhibitors, we recently described the design and synthesis of C21, a chloroacetamidine bearing histone H4 tail analog that acts as an irreversible PRMT1 inhibitor. Given the covalent nature of the interaction, we set out to develop Activity Based Probes (ABPs) that could be used to characterize the physiological roles of PRMT1. Herein, we report the design, synthesis, and characterization of fluorescein-conjugated C21 (F-C21) and biotin-conjugated C21 (B-C21) as PRMT1-specific ABPs. Additionally, we provide the first evidence that PRMT1 activity is negatively regulated in a spatial and temporal fashion. PMID:21838253

  12. Optimal Control of Offshore Indoor Climate Zhenyu Yang and Andrea Valente

    E-print Network

    Yang, Zhenyu

    indoor climate control is very critical to manned offshore platforms in terms of onboard staffs' comfort-and-gas offshore platform by employing some advanced control technique - Model Predictive Control (MPC). The Single for offshore platforms [2]. Even offshore HVAC standards are recent, like the ISO 15138 (2000) and Danish

  13. Modern Costing Innovations and Legitimation: A Health Care Study

    Microsoft Academic Search

    Michela Arnaboldi; Irvine Lapsley

    2004-01-01

    This article is a study of the introduction of a modern costing technology—activity based costing (ABC)—into a health care organization which is undergoing change. The transformation of this organization is of particular interest as it focused on the experience of a service which had always existed by collecting blood, which is given as a free donation (the gift), and which

  14. Quantifying the hurricane catastrophe risk to offshore wind power.

    PubMed

    Rose, Stephen; Jaramillo, Paulina; Small, Mitchell J; Apt, Jay

    2013-12-01

    The U.S. Department of Energy has estimated that over 50 GW of offshore wind power will be required for the United States to generate 20% of its electricity from wind. Developers are actively planning offshore wind farms along the U.S. Atlantic and Gulf coasts and several leases have been signed for offshore sites. These planned projects are in areas that are sometimes struck by hurricanes. We present a method to estimate the catastrophe risk to offshore wind power using simulated hurricanes. Using this method, we estimate the fraction of offshore wind power simultaneously offline and the cumulative damage in a region. In Texas, the most vulnerable region we studied, 10% of offshore wind power could be offline simultaneously because of hurricane damage with a 100-year return period and 6% could be destroyed in any 10-year period. We also estimate the risks to single wind farms in four representative locations; we find the risks are significant but lower than those estimated in previously published results. Much of the hurricane risk to offshore wind turbines can be mitigated by designing turbines for higher maximum wind speeds, ensuring that turbine nacelles can turn quickly to track the wind direction even when grid power is lost, and building in areas with lower risk. PMID:23763387

  15. Geospatial characteristics of Florida's coastal and offshore environments: Administrative and political boundaries and offshore sand resources

    USGS Publications Warehouse

    Demopoulos, Amanda W.J.; Foster, Ann M.; Jones, Michal L.; Gualtieri, Daniel J.

    2011-01-01

    The Geospatial Characteristics Geopdf of Florida's Coastal and Offshore Environments is a comprehensive collection of geospatial data describing the political and natural resources of Florida. This interactive map provides spatial information on bathymetry, sand resources, military areas, marine protected areas, cultural resources, locations of submerged cables, and shipping routes. The map should be useful to coastal resource managers and others interested in the administrative and political boundaries of Florida's coastal and offshore region. In particular, as oil and gas explorations continue to expand, the map may be used to explore information regarding sensitive areas and resources in the State of Florida. Users of this geospatial database will find that they have access to synthesized information in a variety of scientific disciplines concerning Florida's coastal zone. This powerful tool provides a one-stop assembly of data that can be tailored to fit the needs of many natural resource managers.

  16. A longitudinal study of the adoption of an activity-based planning system in the Crown Prosecution Service of England and Wales, United Kingdom

    Microsoft Academic Search

    Lana Yan Jun Liu; Falconer Mitchell; John Robinson

    2008-01-01

    Purpose – The purpose of this paper is to explore the adoption of a time-based activity-based costing (ABC) information system in resource planning (ABP) in the Crown Prosecution Service (CPS) of England and Wales, a public service organisation in the United Kingdom, for the period of 2000-2005. The aims of the study are to provide a technical review of the

  17. On the Offshore Advection of Boundary-Layer Structures and the Influence on Offshore Wind Conditions

    NASA Astrophysics Data System (ADS)

    Dörenkämper, Martin; Optis, Michael; Monahan, Adam; Steinfeld, Gerald

    2015-06-01

    The coastal discontinuity imposes strong signals to the atmospheric conditions over the sea that are important for wind-energy potential. Here, we provide a comprehensive investigation of the influence of the land-sea transition on wind conditions in the Baltic Sea using data from an offshore meteorological tower, data from a wind farm, and mesoscale model simulations. Results show a strong induced stable stratification when warm inland air flows over a colder sea. This stratification demonstrates a strong diurnal pattern and is most pronounced in spring when the land-sea temperature difference is greatest. The strength of the induced stratification is proportional to this parameter and inversely proportional to fetch. Extended periods of stable stratification lead to increased influence of inertial oscillations and increased frequency of low-level jets. Furthermore, heterogeneity in land-surface roughness along the coastline is found to produce pronounced horizontal streaks of reduced wind speeds that under stable stratification are advected several tens of kilometres over the sea. The intensity and length of the streaks dampen as atmospheric stability decreases. Increasing sea surface roughness leads to a deformation of these streaks with increasing fetch. Slight changes in wind direction shift the path of these advective streaks, which when passing through an offshore wind farm are found to produce large fluctuations in wind power. Implications of these coastline effects on the accurate modelling and forecasting of offshore wind conditions, as well as damage risk to the turbine, are discussed.

  18. Assessment of Offshore Wind System Design, Safety, and Operation Standards

    SciTech Connect

    Sirnivas, S.; Musial, W.; Bailey, B.; Filippelli, M.

    2014-01-01

    This report is a deliverable for a project sponsored by the U.S. Department of Energy (DOE) entitled National Offshore Wind Energy Resource and Design Data Campaign -- Analysis and Collaboration (contract number DE-EE0005372; prime contractor -- AWS Truepower). The project objective is to supplement, facilitate, and enhance ongoing multiagency efforts to develop an integrated national offshore wind energy data network. The results of this initiative are intended to 1) produce a comprehensive definition of relevant met-ocean resource assets and needs and design standards, and 2) provide a basis for recommendations for meeting offshore wind energy industry data and design certification requirements.

  19. NREL Software Aids Offshore Wind Turbine Designs (Fact Sheet)

    SciTech Connect

    Not Available

    2013-10-01

    NREL researchers are supporting offshore wind power development with computer models that allow detailed analyses of both fixed and floating offshore wind turbines. While existing computer-aided engineering (CAE) models can simulate the conditions and stresses that a land-based wind turbine experiences over its lifetime, offshore turbines require the additional considerations of variations in water depth, soil type, and wind and wave severity, which also necessitate the use of a variety of support-structure types. NREL's core wind CAE tool, FAST, models the additional effects of incident waves, sea currents, and the foundation dynamics of the support structures.

  20. 26th annual offshore technology conference, 1994 proceedings

    SciTech Connect

    Not Available

    1994-01-01

    This conference is the world's largest and most comprehensive technical conference and exhibition on offshore resource development. The four Proceedings volumes have been separated by major areas of interest, with relative sessions included in each volume. This Volume 3 contains information relative to offshore platforms and marine system designs. It describes both the installation and decommissioning of offshore platforms, retrofitting platforms to meet current safety standards, and technology assessments for both drilling and platform designs. Papers are also provided which describe maintenance and repair technologies for damages to platform.

  1. Recent advances in offshore pipeline technology

    SciTech Connect

    Bruschi, R.; Vitali, L. [Snamprogetti S.p.A., Fano (Italy)

    1994-12-31

    Since the pioneering construction of the TRANSMED pipeline system across the Sicily Channel in the early 80`s, offshore pipeline technology has been progressing towards more and more difficult environments. Now the projects envisaged for the 90`s are venturing far beyond the challenges of the recent past. The scope of this paper is to present the recent research efforts aimed at tackling the main design aspects of the new challenges. Particular attention will be given to the experiences and achievements on the last few years in transmission pipelines across the European Continental Shelf, e.g. in the Central and Southern North Sea and across the Mediterranean Sea. Technologies, tools and purpose developed criteria will be discussed. The performance of current operating pipeline systems will be reviewed and incentives to rationalize design criteria and guidelines will be illustrated.

  2. Elsam: Horns Rev Offshore Wind Farm

    NSDL National Science Digital Library

    The Danish energy producing company Elsam is currently building "the world's largest offshore wind farm" in the North Sea. 80 turbines were erected over summer 2002, which was when the project began. The Horns Rev project is part of a long term plan for Denmark to reduce carbon dioxide emissions 50 percent by 2030. A monthly newsletter is published online with all of the developments and milestones accomplished. There is substantial material on the wind farm's construction. The specifications of the turbines are quite impressive. Analysis of wind speeds, water conditions, and other location specific data conveys the complexity of the design process. A description of the various stages of construction is also very interesting.

  3. Underwater wet welding consumables for offshore applications

    SciTech Connect

    Sanchez-Osio, A.; Liu, S.; Olson, D.L. [Colorado School of Mines, Golden, CO (United States). Center for Welding and Joining Research; Ibarra, S. [Amoco Corp. Research, Naperville, IL (United States)

    1993-12-31

    The use of underwater wet welding for offshore repairs has been limited mainly because of porosity in the resulting welds. With appropriate consumable design, however, it is possible to enhance weld metal toughness through microstructural refinement and to reduce porosity. New titanium and boron based consumables have been developed with which high toughness acicular ferrite can be produced in underwater wet welds. Titanium, by means of oxide formation, promoted an increase in weld metal acicular ferrite, while boron additions decreased the amount of grain boundary ferrite, further improving the microstructure. Porosity reduction was possible through the addition of calcium carbonate at approximately 13 wt. % in the coating. However, weld metal decarburization also resulted with the addition.

  4. Greenland unveils terms for offshore licenses

    SciTech Connect

    Not Available

    1992-04-20

    This paper reports that Greenland has spelled out terms for its first round of offshore licensing. The action off western Greenland could lead to the first oil and gas exploration there since an unsuccessful campaign in the 1970s. The Mineral Resources Administration (MRA) for Greenland pegged exploration license terms on 133 blocks, all south of the 66th parallel, at 10 years with options for 2 year extensions to a maximum of 6 more years. The license can cover as many as six blocks. In the first 3 year period companies will have only a seismic obligation of 1,588 km per six blocks. For the second 3 year period there will be a one well obligation and one well in each subsequent 2 year periods.

  5. Offshore structure and method of sinking same

    SciTech Connect

    Fern, D. T.

    1985-02-05

    An offshore structure and a method of skinking it to the sea bed. In accordance with one aspect of this invention, the structure is sunk asymmetrically by first sinking a first end portion thereof and then sinking the other end portion. The first end portion is sunk by ballasting it while the other end portion is closed to ballast. The structure is provided with sufficient water plane area while sinking each end portion to maintain stability during the sinking process. In accordance with another aspect of this invention, at least two spaced-apart piles are provided at the end corresponding to the first end portion to absorb the force of impact with the sea bed and to maintain a skirt on the structure out of contact with the sea bed until both ends of the structure have been sunk to the sea bed.

  6. Environmental load uncertainties for offshore structures

    SciTech Connect

    Nessim, M.A.; Hong, H.P. [Centre for Engineering Research Inc., Edmonton, Alberta (Canada); Jordaan, I.J. [Memorial Univ. of Newfoundland, St. John`s, Newfoundland (Canada). Faculty of Engineering and Applied Science

    1995-11-01

    A methodology for assessing the effect of different sources of uncertainty on the calculation of load effect on offshore structures is presented. A consistent classification of uncertainties was adopted and used as a basis to develop models to estimate the effect of different uncertainties on specified design loads. It is shown that distribution parameter uncertainties arising from limitations on the quantity of statistical data are not likely to have a significant effect on design loads. By contrast, model uncertainties can greatly increase the design loads, and the increase is sensitive to the probabilistic models used to describe model error. The methodology and results can be used by design engineers to take model uncertainties into account in estimating specified loads. They also form the basis for developing and calibrating a new information-sensitive code format.

  7. Method for removing obsolete offshore platforms

    SciTech Connect

    Wang, F.S.; Gautreau, C.T; Heels, R.W; Hein, N.W. Jr.

    1990-02-20

    This patent describes a method for removing an offshore platform anchored to the seabed by hollow pilings. It comprises: establishing an annulus inside one of the pilings at a level below the top of the seabed by lowering a cylindrical member down into the piling and sealing at least the top of the member against the interior of the piling, the displacing the connecting member between the positions, the connecting member being provided with at least one engaging formation; and a locking member engaging the formation and adapted to brace against the other article at least two locations straddling the connecting member for retaining the other article locked to the one of the articles until the locking member is withdrawn from engagement with the formation.

  8. Sea loads on ships and offshore structures

    SciTech Connect

    Faltinsen, O. (Norwegian Inst. of Technology (NO))

    1990-01-01

    The book introduces the theory of the structural loading on ships and offshore structures caused by wind, waves and currents, and goes on to describe the applications of this theory in terms of real structures. The main topics described are linear-wave induced motions, loads on floating structures, numerical methods for ascertaining wave induced motions and loads, viscous wave loads and damping, stationkeeping and water impact and entry. The applications of the theoretical principles are introduced with extensive use of exercises and examples. Applications covered include conventional ships, barges, high speed marine vehicles, semisubmersibles, tension leg platforms, moored or dynamic positioned ships, risers, buoys, fishing nets, jacket structures and gravity platforms. One aim of the book is to provide a physical understanding through simplified mathematical models. In this way one can develop analytical tools to evaluate results from test models, full scale trials or computer simulation, and learns which parameters represent the major contributions and influences on sea loads.

  9. Potential on-shore and off-shore reservoirs for CO2 sequestration in Central Atlantic magmatic province basalts.

    PubMed

    Goldberg, David S; Kent, Dennis V; Olsen, Paul E

    2010-01-26

    Identifying locations for secure sequestration of CO(2) in geological formations is one of our most pressing global scientific problems. Injection into basalt formations provides unique and significant advantages over other potential geological storage options, including large potential storage volumes and permanent fixation of carbon by mineralization. The Central Atlantic Magmatic Province basalt flows along the eastern seaboard of the United States may provide large and secure storage reservoirs both onshore and offshore. Sites in the South Georgia basin, the New York Bight basin, and the Sandy Hook basin offer promising basalt-hosted reservoirs with considerable potential for CO(2) sequestration due to their proximity to major metropolitan centers, and thus to large industrial sources for CO(2). Onshore sites are suggested for cost-effective characterization studies of these reservoirs, although offshore sites may offer larger potential capacity and additional long-term advantages for safe and secure CO(2) sequestration. PMID:20080705

  10. Potential on-shore and off-shore reservoirs for CO2 sequestration in Central Atlantic magmatic province basalts

    PubMed Central

    Goldberg, David S.; Kent, Dennis V.; Olsen, Paul E.

    2010-01-01

    Identifying locations for secure sequestration of CO2 in geological formations is one of our most pressing global scientific problems. Injection into basalt formations provides unique and significant advantages over other potential geological storage options, including large potential storage volumes and permanent fixation of carbon by mineralization. The Central Atlantic Magmatic Province basalt flows along the eastern seaboard of the United States may provide large and secure storage reservoirs both onshore and offshore. Sites in the South Georgia basin, the New York Bight basin, and the Sandy Hook basin offer promising basalt-hosted reservoirs with considerable potential for CO2 sequestration due to their proximity to major metropolitan centers, and thus to large industrial sources for CO2. Onshore sites are suggested for cost-effective characterization studies of these reservoirs, although offshore sites may offer larger potential capacity and additional long-term advantages for safe and secure CO2 sequestration. PMID:20080705

  11. Understanding Potential Climate Variability Impacts on the Offshore Energy Industry

    NASA Astrophysics Data System (ADS)

    Stear, J.

    2014-12-01

    Climate variability may have important implications for the offshore energy industry. Scenarios of increased storm activity and changes in sea level could require the retrofit of existing offshore platforms and coastal infrastructure, the decommissioning of facilities for which upgrade or relocation is not economically viable, and the development of new methods and equipment which are removed from or less sensitive to environmental loads. Over the past years the energy industry has been actively involved in collaborative research efforts with government and academia to identify the potential changes in the offshore operating environment, and corresponding risk implications. This presentation will review several of these efforts, and for several of the hypothetical climate variation scenarios, review the potential impacts on and possible mitigations for offshore and coastal energy infrastructure and operations.

  12. 49 CFR 195.57 - Filing offshore pipeline condition reports.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 false Filing offshore pipeline condition reports. 195.57 Section...Relating to Transportation (Continued) PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION...DEPARTMENT OF TRANSPORTATION (CONTINUED) PIPELINE SAFETY TRANSPORTATION OF...

  13. 49 CFR 195.57 - Filing offshore pipeline condition reports.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2012-10-01 false Filing offshore pipeline condition reports. 195.57 Section...Relating to Transportation (Continued) PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION...DEPARTMENT OF TRANSPORTATION (CONTINUED) PIPELINE SAFETY TRANSPORTATION OF...

  14. 49 CFR 195.57 - Filing offshore pipeline condition reports.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2014-10-01 false Filing offshore pipeline condition reports. 195.57 Section...Relating to Transportation (Continued) PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION...DEPARTMENT OF TRANSPORTATION (CONTINUED) PIPELINE SAFETY TRANSPORTATION OF...

  15. 49 CFR 191.27 - Filing offshore pipeline condition reports.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2012-10-01 false Filing offshore pipeline condition reports. 191.27 Section...Relating to Transportation (Continued) PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION...DEPARTMENT OF TRANSPORTATION (CONTINUED) PIPELINE SAFETY TRANSPORTATION OF NATURAL...

  16. 49 CFR 195.57 - Filing offshore pipeline condition reports.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 false Filing offshore pipeline condition reports. 195.57 Section...Relating to Transportation (Continued) PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION...DEPARTMENT OF TRANSPORTATION (CONTINUED) PIPELINE SAFETY TRANSPORTATION OF...

  17. 49 CFR 191.27 - Filing offshore pipeline condition reports.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 false Filing offshore pipeline condition reports. 191.27 Section...Relating to Transportation (Continued) PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION...DEPARTMENT OF TRANSPORTATION (CONTINUED) PIPELINE SAFETY TRANSPORTATION OF NATURAL...

  18. 49 CFR 191.27 - Filing offshore pipeline condition reports.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2014-10-01 false Filing offshore pipeline condition reports. 191.27 Section...Relating to Transportation (Continued) PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION...DEPARTMENT OF TRANSPORTATION (CONTINUED) PIPELINE SAFETY TRANSPORTATION OF NATURAL...

  19. 49 CFR 191.27 - Filing offshore pipeline condition reports.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 false Filing offshore pipeline condition reports. 191.27 Section...Relating to Transportation (Continued) PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION...DEPARTMENT OF TRANSPORTATION (CONTINUED) PIPELINE SAFETY TRANSPORTATION OF NATURAL...

  20. OUTSHORE Maturity Model: Assistance for Software Offshore Outsourcing Decisions

    NASA Astrophysics Data System (ADS)

    Mäkiö, Juho; Betz, Stafanie; Oberweis, Andreas

    Offshore outsourcing software development (OOSD) is increasingly being used by the Software Industry. OOSD is a specific variant of Geographically Distributed Software Developmentdistributed software development (GDSD). Compared to the traditional mode of software development (i.e., in-house) GDSD is more edgy and puts at risk the attainment of the expected results. Although the failure of an offshore outsourcing software project may be caused by a variety of factors, one major complication is geographical distance. Consequently we argue that risk avoidance in outshore software development should be undertaken well in advance of the development launch. This could be done by testing the offshore outsourcing relevance of each software project and then the offshore outsourcing company involved. With this in mind we have developed the OUTSHORE Maturity Modeloutshore maturity model - OMM.

  1. Multi-hazard Reliability Assessment of Offshore Wind Turbines 

    E-print Network

    Mardfekri Rastehkenari, Maryam 1981-

    2012-12-04

    A probabilistic framework is developed to assess the structural reliability of offshore wind turbines. Probabilistic models are developed to predict the deformation, shear force and bending moment demands on the support structure of wind turbines...

  2. Coupled Dynamic Analysis of Multiple Unit Floating Offshore Wind Turbine 

    E-print Network

    Bae, Yoon Hyeok

    2013-04-23

    In the present study, a numerical simulation tool has been developed for the rotor-floater-tether coupled dynamic analysis of Multiple Unit Floating Offshore Wind Turbine (MUFOWT) in the time domain including aero-blade-tower dynamics and control...

  3. 12. OFFSHORE VIEW OF PIER, LOOKING EAST, SHOWING LIFEGUARD TOWER ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    12. OFFSHORE VIEW OF PIER, LOOKING EAST, SHOWING LIFEGUARD TOWER AND 2ND TEE (CENTER), REFUGE BAY (RIGHT) - Huntington Beach Municipal Pier, Pacific Coast Highway at Main Street, Huntington Beach, Orange County, CA

  4. Development of a composite repair system for reinforcing offshore risers 

    E-print Network

    Alexander, Christopher Richard

    2009-05-15

    A research program was conducted to investigate the application of composite materials in repairing corroded offshore risers, leading to the development of an optimized repair using a hybrid carbon/E-glass system. The objective of this research...

  5. Use of a mobile diving support vessel, Offshore California

    SciTech Connect

    Carroll, J.P.

    1983-03-01

    The Blue Dolphin is a converted workboat with a one-atmosphere manipulator bell diving system. It provides diving support for Chevron's offshore drilling program. This support includes underwater inspection, repair and salvage.

  6. 46 CFR 131.320 - Safety orientation for offshore workers.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...are made informing each offshore worker of— (1) In general terms, emergency and evacuation procedures; (2) Locations of emergency exits and of embarkation areas for survival craft; (3) Locations of stowage of lifejackets and...

  7. 49 CFR 195.57 - Filing offshore pipeline condition reports.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 false Filing offshore pipeline condition reports. 195.57 Section...Relating to Transportation (Continued) PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION...DEPARTMENT OF TRANSPORTATION (CONTINUED) PIPELINE SAFETY TRANSPORTATION OF...

  8. 49 CFR 191.27 - Filing offshore pipeline condition reports.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 false Filing offshore pipeline condition reports. 191.27 Section...Relating to Transportation (Continued) PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION...DEPARTMENT OF TRANSPORTATION (CONTINUED) PIPELINE SAFETY TRANSPORTATION OF NATURAL...

  9. A wind chart to characterize potential offshore wind energy sites

    NASA Astrophysics Data System (ADS)

    del Jesus, F.; Menéndez, M.; Guanche, R.; Losada, I. J.

    2014-10-01

    Offshore wind industry needs to improve wind assessment in order to decrease the uncertainty associated to wind resource and its influence on financial requirements. Here, several features related to offshore wind resource assessment are discussed, such as input wind data, estimation of long-term and extreme wind statistics, the wind profile and climate variations. This work proposes an analytical method to characterize wind resource. Final product is a wind chart containing useful wind information that can be applied to any offshore sites. Using long-term time series of meteorological variables (e.g. wind speed and direction at different heights), the methodology is applied to five pilot sites in different countries along European Atlantic corridor and it is used to describe and compare offshore wind behavior.

  10. Multi-hazard Reliability Assessment of Offshore Wind Turbines

    E-print Network

    Mardfekri Rastehkenari, Maryam 1981-

    2012-12-04

    A probabilistic framework is developed to assess the structural reliability of offshore wind turbines. Probabilistic models are developed to predict the deformation, shear force and bending moment demands on the support structure of wind turbines...

  11. A control strategy for series connected offshore wind turbines

    Microsoft Academic Search

    Alejandro Garces; Marta Molinas

    2011-01-01

    This paper presents a control strategy for HVDC systems based on pulse width modulated current source converters. The strategy is applicable to series connected off-shore wind farms where the line current must be controlled by the on-land converter while the off-shore voltage and power are controlled by converters allocated in each turbine. A threestage hierarchical control based on proportional regulators

  12. Coupled dynamic analysis of floating offshore wind farms

    E-print Network

    Shim, Sangyun

    2009-05-15

    .2.3 FAST............................................................................................................. 11 2.3 The concept of coupled model of floating offshore wind turbine....................... 14 2.3.1 Introduction... turbines under the aerodynamic load () r aero F . More information about FAST can be found in the FAST User?s Guide (Jonkman, Jason, and Buhl, 2004). 14 2.3 The concept of coupled model of floating offshore wind turbine 2.3.1 Introduction...

  13. International Journal of Offshore and Polar Engineering (ISSN 1053-5381) Copyright by The International Society of Offshore and Polar Engineers

    E-print Network

    Manuel, Lance

    loads in many applications, including offshore platforms (Winterstein et al., 1993) and onshore windInternational Journal of Offshore and Polar Engineering (ISSN 1053-5381) Copyright © by The International Society of Offshore and Polar Engineers Vol. 15, No. 2, June 2005, pp. 1­9 On Assessing

  14. Assessment of economic impact of offshore and coastal discharge requirements on present and future operations in the Gulf of Mexico. Final report

    SciTech Connect

    Lindsey, R. [Bartlesville Project Office, OK (United States)

    1996-06-01

    The high potential costs of compliance associated with new effluent guidelines for offshore and coastal oil and gas operations could significantly affect the economics of finding, developing, and producing oil and gas in the Gulf of Mexico. This report characterizes the potential economic impacts of alternative treatment and discharge regulations for produced water on reserves and production in Gulf of Mexico coastal, territorial and outer continental shelf (OCS) waters, quantifying the impacts of both recent regulatory changes and possible more stringent requirements. The treatment technologies capable of meeting these requirements are characterized in terms of cost, performance, and applicability to coastal and offshore situations. As part of this analysis, an extensive database was constructed that includes oil and gas production forecasts by field, data on existing platforms, and the current treatment methods in place for produced water treatment and disposal on offshore facilities. This work provides the first comprehensive evaluation of the impacts of alternative regulatory requirements for produced water management and disposal in coastal and offshore areas of the Gulf of Mexico.

  15. Synthesis of first practices and operational research approaches in activity-based travel demand modeling

    Microsoft Academic Search

    William Davidson; Robert Donnelly; Peter Vovsha; Joel Freedman; Steve Ruegg; Jim Hicks; Joe Castiglione; Rosella Picado

    2007-01-01

    Regional travel models in the United States are clearly evolving from conventional models towards a new generation of more behaviorally realistic activity-based models. The new generation of regional travel demand models is characterized by three features: (1) an activity-based platform, that implies that modeled travel be derived within a general framework of the daily activities undertaken by households and persons,

  16. AMCA: an Active-based Multicast Congestion Avoidance Algorithm M. Maimour and C. D. Pham

    E-print Network

    Boyer, Edmond

    AMCA: an Active-based Multicast Congestion Avoidance Algorithm M. Maimour and C. D. Pham RESO data distribution called AMCA (Active-based Multicast Congestion Avoidance algorithm) that tries the source. Simulations show that AMCA converges, makes use of the available bandwidth and reacts rapidly

  17. Activity Based Learning as Self-Accessing Strategy to Promote Learners' Autonomy

    ERIC Educational Resources Information Center

    Ravi, R.; Xavier, P.

    2007-01-01

    The Activity Based Learning (ABL) is unique and effective to attract out-of -school children to schools. It facilitates readiness for learning, instruction, reinforcement and evaluation. ABL has transformed the classrooms into hubs of activities and meaningful learning. Activity-based learning, naturally leads to cooperative learning. Since group…

  18. \\\\server05\\productn\\C\\CJP\\14-1\\CJP102.txt unknown Seq: 1 24-FEB-05 17:48 REGULATING OFFSHORE WIND POWER AND

    E-print Network

    Firestone, Jeremy

    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 R A. OFFSHORE AQUACULTURE (MARICULTURE) . . . . . . . . . . . 74 R B. OFFSHORE WIND POWER PRODUCTION . . . . . . . . . . . . . . . 75 R C. POTENTIAL CONNECTIONS AMONG OFFSHORE WIND POWER, MARINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 R A. OFFSHORE WIND POWER IN EUROPE . . . . . . . . . . . . . . . . . 96 R B. BEST PRACTICES

  19. Coupled Dynamic Analysis of Large-Scale Mono-Column Offshore Wind Turbine with a Single Tether Hinged in Seabed 

    E-print Network

    Chen, Jieyan

    2012-10-19

    The increased interest in the offshore wind resource in both industry and academic and the extension of the wind field where offshore wind turbine can be deployed has stimulated quite a number of offshore wind turbines concepts. This thesis presents...

  20. 76 FR 22130 - Commercial Leasing for Wind Power on the Outer Continental Shelf Offshore New Jersey-Call for...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-20

    ...on the Outer Continental Shelf Offshore New Jersey--Call for Information and Nominations...on the Outer Continental Shelf Offshore New Jersey...Outer Continental Shelf (OCS) offshore New Jersey. Although this announcement is...