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1

Introduction to Activity Based Costing (ABC)  

NSDL National Science Digital Library

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.

Roztocki, Narcyz

2007-05-27

2

Activity-based costing saves on supply distribution costs.  

PubMed

Activity-based costing is coming, but is your organization ready? A few pioneering hospitals are already reaping the operational and economic benefits of activity-based costing in their materials management, and now the VHA purchasing alliance is offering this costing option to its 1,200 hospital members. The concept is simple, so why aren't there more takers? Here are the details on this pragmatic pricing approach that could save your facility plenty. PMID:10178010

1997-10-01

3

Activity-Based Costing: A Cost Management Tool.  

ERIC Educational Resources Information Center

In college and university administration, overhead costs are often charged to programs indiscriminately, whereas the support activities that underlie those costs remain unanalyzed. It is time for institutions to decrease ineffective use of resources. Activity-based management attributes costs more accurately and can improve efficiency. (MSE)

Turk, Frederick J.

1993-01-01

4

Cost of Offshore Wind Energy Charlene Nalubega  

E-print Network

Cost of Offshore Wind Energy water as well as on land based wind farms. The specific offshore wind energy case under consideration kilowatt Hour will be determined. Wind Energy has been around for a very long time. It started as out

Mountziaris, T. J.

5

Time-driven activity-based costing.  

PubMed

In the classroom, activity-based costing (ABC) looks like a great way to manage a company's limited resources. But executives who have tried to implement ABC in their organizations on any significant scale have often abandoned the attempt in the face of rising costs and employee irritation. They should try again, because a new approach sidesteps the difficulties associated with large-scale ABC implementation. In the revised model, managers estimate the resource demands imposed by each transaction, product, or customer, rather than relying on time-consuming and costly employee surveys. This method is simpler since it requires, for each group of resources, estimates of only two parameters: how much it costs per time unit to supply resources to the business's activities (the total overhead expenditure of a department divided by the total number of minutes of employee time available) and how much time it takes to carry out one unit of each kind of activity (as estimated or observed by the manager). This approach also overcomes a serious technical problem associated with employee surveys: the fact that, when asked to estimate time spent on activities, employees invariably report percentages that add up to 100. Under the new system, managers take into account time that is idle or unused. Armed with the data, managers then construct time equations, a new feature that enables the model to reflect the complexity of real-world operations by showing how specific order, customer, and activity characteristics cause processing times to vary. This Tool Kit uses concrete examples to demonstrate how managers can obtain meaningful cost and profitability information, quickly and inexpensively. Rather than endlessly updating and maintaining ABC data,they can now spend their time addressing the deficiencies the model reveals: inefficient processes, unprofitable products and customers, and excess capacity. PMID:15559451

Kaplan, Robert S; Anderson, Steven R

2004-11-01

6

Activity-Based Costing Systems for Higher Education.  

ERIC Educational Resources Information Center

Examines traditional costing models utilized in higher education and pinpoints shortcomings related to proper identification of costs. Describes activity-based costing systems as a superior alternative for cost identification, measurement, and allocation. (MLF)

Day, Dennis H.

1993-01-01

7

The case for implementing activity based costing.  

PubMed

ABC identifies profitable volumes to give managers information to better manage volumes. Managers must balance the demand for service while maintaining a reasonable profit margin. Disparate systems work extremely well for their intended purposes, but they do not communicate with one another. The strength of the data they hold individually may be leveraged when implementing ABC methodology. Mayo Clinic in Rochester, Minnesota implemented a pilot of ABC to evaluate CT services where there is a high volume, multiple service location for cost comparison, variety of patient acuity and service mix, and large capital investments.The goal was to reveal the actual cost of CT services at the procedural level. PMID:23270120

Monge, Paul H; Bolinger-Perez, Nicole; Boysen, Kent

2012-01-01

8

A New Activity-Based Financial Cost Management Method  

NASA Astrophysics Data System (ADS)

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.

Qingge, Zhang

9

Applying activity-based costing to healthcare settings.  

PubMed

Activity-based costing (ABC) focuses on processes that drive cost. By tracing healthcare activities back to events that generate cost, a more accurate measurement of financial performance is possible. This article uses ABC principles and techniques to determine costs associated with the x-ray process in a midsized outpatient clinic. The article also provides several tips for initiating an ABC cost system for an entire healthcare organization. PMID:10146178

Canby, J B

1995-02-01

10

COST REDUCTION PROSPECTS FOR THE OFFSHORE WIND ENERGY SECTOR  

Microsoft Academic Search

The economics of offshore wind energy are (currently) less favorable than for onshore wind energy and there is a strong need for significant cost reductions in order to become competitive with fossil fuel sources. As about 70% part of the electricity cost is determined by the initial investment costs, we explored the ranges of possible cost reductions of offshore wind

M. Junginger

11

Applying activity-based costing in long-term care.  

PubMed

As greater numbers of the elderly use health services, and as health care costs climb, effective financial tracking is essential. Cost management in health care can benefit if costs are linked to the care activities where they are incurred. Activity-based costing (ABC) provides a useful approach. The framework aligns costs (inputs), through activities (process), to outputs and outcomes. It allocates costs based on client care needs rather than management structure. The ABC framework was tested in a residential care facility and in supportive housing apartments. The results demonstrate the feasibility and advantages of ABC for long term care agencies, including community-based care. PMID:10339203

Wodchis, W P

1998-01-01

12

Activity-Based Costing in the After Press Services Industry  

NASA Astrophysics Data System (ADS)

This research was conducted to apply activity-based costing (ABC) in an after press service company in Chiang Mai province, Thailand. The company produces all of its products by one-stop service (such as coating, stitching, binding, die cutting, and gluing). All products are made to order, and have different sizes and patterns. A strategy of low price is used to compete in the marketplace. After cost analysis, the study found that the company has high overhead (36.5% of total cost). The company's problem is its use of traditional cost accounting, which has low accuracy in assigning overhead costs. If management uses this information when pricing customer orders, losses may occur because real production costs may be higher than the selling price. Therefore, the application of ABC in cost analysis can help executives receive accurate cost information; establish a sound pricing strategy; and improve the manufacturing process by determining work activities which have excessively high production costs. According to this research, 6 out of 56 items had a production cost higher than the selling price, leading to losses of 123,923 baht per year. Methods used to solve this problem were: reducing production costs; establishing suitable prices; and creating a sales promotion with lower prices for customers whose orders include processes involving unused capacity. These actions will increase overall sales of the company, and allow more efficient use of its machinery.

Shevasuthisilp, Suntichai; Punsathitwong, Kosum

2009-10-01

13

Applying activity-based costing to the nuclear medicine unit.  

PubMed

Previous studies have shown the feasibility of using activity-based costing (ABC) in hospital environments. However, many of these studies discuss the general applications of ABC in health-care organizations. This research explores the potential application of ABC to the nuclear medicine unit (NMU) at a teaching hospital. The finding indicates that the current cost averages 236.11 US dollars for all procedures, which is quite different from the costs computed by using ABC. The difference is most significant with positron emission tomography scan, 463 US dollars (an increase of 96%), as well as bone scan and thyroid scan, 114 US dollars (a decrease of 52%). The result of ABC analysis demonstrates that the operational time (machine time and direct labour time) and the cost of drugs have the most influence on cost per procedure. Clearly, to reduce the cost per procedure for the NMU, the reduction in operational time and cost of drugs should be analysed. The result also indicates that ABC can be used to improve resource allocation and management. It can be an important aid in making management decisions, particularly for improving pricing practices by making costing more accurate. It also facilitates the identification of underutilized resources and related costs, leading to cost reduction. The ABC system will also help hospitals control costs, improve the quality and efficiency of the care they provide, and manage their resources better. PMID:16102243

Suthummanon, Sakesun; Omachonu, Vincent K; Akcin, Mehmet

2005-08-01

14

Sensitivity Analysis of Offshore Wind Cost of Energy (Poster)  

SciTech Connect

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.

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

2012-10-01

15

The ABCs of Activity-Based Costing: A Cost Containment and Reallocation Tool.  

ERIC Educational Resources Information Center

This article describes activity-based costing (ABC) and how this tool may help management understand the costs of major activities and identify possible alternatives. Also discussed are the traditional costing systems used by higher education and ways of applying ABC to higher education. (GLR)

Turk, Frederick J.

1992-01-01

16

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

PubMed Central

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

Gesse, Theresa; Golembeski, Susan; Potter, Jonell

1999-01-01

17

A new costing model in hospital management: time-driven activity-based costing system.  

PubMed

Traditional cost systems cause cost distortions because they cannot meet the requirements of today's businesses. Therefore, a new and more effective cost system is needed. Consequently, time-driven activity-based costing system has emerged. The unit cost of supplying capacity and the time needed to perform an activity are the only 2 factors considered by the system. Furthermore, this system determines unused capacity by considering practical capacity. The purpose of this article is to emphasize the efficiency of the time-driven activity-based costing system and to display how it can be applied in a health care institution. A case study was conducted in a private hospital in Cyprus. Interviews and direct observations were used to collect the data. The case study revealed that the cost of unused capacity is allocated to both open and laparoscopic (closed) surgeries. Thus, by using the time-driven activity-based costing system, managers should eliminate the cost of unused capacity so as to obtain better results. Based on the results of the study, hospital management is better able to understand the costs of different surgeries. In addition, managers can easily notice the cost of unused capacity and decide how many employees to be dismissed or directed to other productive areas. PMID:23364414

Öker, Figen; Özyap?c?, Hasan

2013-01-01

18

[Cost management: the implementation of the activity-based costing method in sterile processing department].  

PubMed

This exploratory case study was performed aiming at implementing the Activity-based Costing (ABC) method in a sterile processing department (SPD) of a major teaching hospital. Data collection was performed throughout 2006. Documentary research techniques and non participant closed observation were used. The ABC implementation allowed for learning the activity-based costing of both the chemical and physical disinfection cycle/load: (dollar 9.95) and (dollar 12.63), respectively; as well as the cost for sterilization by steam under pressure (autoclave) (dollar 31.37) and low temperature steam and gaseous formaldehyde sterilization (LTSF) (dollar 255.28). The information provided by the ABC method has optimized the overall understanding of the cost driver process and provided the foundation for assessing performance and improvement in the SPD processes. PMID:20964053

Jericó, Marli de Carvalho; Castilho, Valéria

2010-09-01

19

Lower cost offshore field development utilizing autonomous vehicles  

SciTech Connect

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.

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

1996-12-31

20

The Cost of Library Services: Activity-Based Costing in an Australian Academic Library.  

ERIC Educational Resources Information Center

Explains activity-based costing (ABC), discusses the benefits of ABC to library managers, and describes the steps involved in implementing ABC in an Australian academic library. Discusses the budgeting process in universities, and considers benefits to the library. (Author/LRW)

Robinson, Peter; Ellis-Newman, Jennifer

1998-01-01

21

Applying Activity Based Costing (ABC) Method to Calculate Cost Price in Hospital and Remedy Services  

PubMed Central

Background Activity Based Costing (ABC) is one of the new methods began appearing as a costing methodology in the 1990’s. It calculates cost price by determining the usage of resources. In this study, ABC method was used for calculating cost price of remedial services in hospitals. Methods: To apply ABC method, Shahid Faghihi Hospital was selected. First, hospital units were divided into three main departments: administrative, diagnostic, and hospitalized. Second, activity centers were defined by the activity analysis method. Third, costs of administrative activity centers were allocated into diagnostic and operational departments based on the cost driver. Finally, with regard to the usage of cost objectives from services of activity centers, the cost price of medical services was calculated. Results: The cost price from ABC method significantly differs from tariff method. In addition, high amount of indirect costs in the hospital indicates that capacities of resources are not used properly. Conclusion: Cost price of remedial services with tariff method is not properly calculated when compared with ABC method. ABC calculates cost price by applying suitable mechanisms but tariff method is based on the fixed price. In addition, ABC represents useful information about the amount and combination of cost price services. PMID:23113171

Rajabi, A; Dabiri, A

2012-01-01

22

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

PubMed Central

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

2011-01-01

23

Activity-Based Costing Model for Assessing Economic Performance.  

ERIC Educational Resources Information Center

An economic model for evaluating the cost performance of academic and administrative programs in higher education is described. Examples from its application at Indiana University-Purdue University Indianapolis are used to illustrate how the model has been used to control costs and reengineer processes. (Author/MSE)

DeHayes, Daniel W.; Lovrinic, Joseph G.

1994-01-01

24

Repairing an offshore jacket structure proves cost effective  

SciTech Connect

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.

Still, J.R.; Blackwood, V.

2000-05-01

25

Using activity-based costing to reengineer the reverse logistics channel  

Microsoft Academic Search

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

Thomas J. Goldsby; David J. Closs

2000-01-01

26

The Role of Activity Based Costing (ABC) in Educational Support Services: A White Paper.  

ERIC Educational Resources Information Center

Many front-line managers who are assuming more financial responsibility for their organizations find traditional cost accounting inadequate for their needs and are turning to Activity Based Costing (ABC). ABC is not a financial reporting system to serve the needs of regulatory agencies, but a tool that tracks costs from the general ledger…

Edds, Daniel B.

27

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

Microsoft Academic Search

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

David S. Harrison

28

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

ERIC Educational Resources Information Center

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.…

Ellis-Newman, Jennifer

2003-01-01

29

Using activity-based costing to track resource use in group practices.  

PubMed

Research shows that understanding how resources are consumed can help group practices control costs. An American Academy of Orthopaedic Surgeons study used an activity-based costing (ABC) system to measure how resources are consumed in providing medical services. Teams of accounting professors observed 18 diverse orthopedic surgery practices. The researchers identified 17 resource-consuming business processes performed by nonphysician office staff. They measured resource consumption by assigning costs to each process according to how much time is spent on related work activities. When group practices understand how their resources are being consumed, they can reduce costs and optimize revenues by making adjustments in how administrative and clinical staff work. PMID:11066706

Zeller, T L; Siegel, G; Kaciuba, G; Lau, A H

1999-09-01

30

Small Firms and Offshore Software Outsourcing: High Transaction Costs and Their Mitigation  

Microsoft Academic Search

It seems surprising that small firms engage in offshore outsourcing given that they lack the resources that large firms possess to overcome the difficulties involved. We examine these factors using transaction cost theory's three stages: contact costs, contract costs, and control costs. Then, using our field data from small client firms (in the United States and the United Kingdom), intermediaries,

Erran Carmel; Brian Nicholson

2005-01-01

31

The design and implementation of Activity Based Costing (ABC): a South African survey  

Microsoft Academic Search

Activity Based Costing (ABC) has been researched extensively in developed countries. Research on these issues in South Africa is limited. This article creates a better understanding of the design of ABC systems in South Africa, comparing ABC implementation in South Africa to that in several developed\\/developing countries. A quantitative methodology was adopted to evaluate the extent of ABC implementation. A

K Sartorius; C Eitzen; P Kamala

2007-01-01

32

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

NASA Astrophysics Data System (ADS)

Decision- and policy-makers in public administrations currently lack on missing relevant information for sufficient governance. In Germany the introduction of New Public Management and double-entry accounting enable public administrations to get the opportunity to use cost-centered accounting mechanisms to establish new governance mechanisms. Process modelling in this case can be a useful instrument to help the public administrations decision- and policy-makers to structure their activities and capture relevant information. In combination with approaches like Activity-Based Costing, higher management level can be supported with a reasonable data base for fruitful and reasonable governance approaches. Therefore, the aim of this article is combining the public sector domain specific process modelling method PICTURE and concept of activity-based costing for supporting Public Administrations in process-based Governance.

Becker, Jörg; Bergener, Philipp; Räckers, Michael

33

Activity-based costing via an information system: an application created for a breast imaging center.  

PubMed

Activity-based costing (ABC) is a process that enables the estimation of the cost of producing a product or service. More accurate than traditional charge-based approaches, it emphasizes analysis of processes, and more specific identification of both direct and indirect costs. This accuracy is essential in today's healthcare environment, in which managed care organizations necessitate responsible and accountable costing. However, to be successfully utilized, it requires time, effort, expertise, and support. Data collection can be tedious and expensive. By integrating ABC with information management (IM) and systems (IS), organizations can take advantage of the process orientation of both, extend and improve ABC, and decrease resource utilization for ABC projects. In our case study, we have examined the process of a multidisciplinary breast center. We have mapped the constituent activities and established cost drivers. This information has been structured and included in our information system database for subsequent analysis. PMID:11442093

Hawkins, H; Langer, J; Padua, E; Reaves, J

2001-06-01

34

An institutional sociology perspective of the implementation of activity based costing by Spanish health care institutions  

Microsoft Academic Search

According to institutional sociology, hospitals will respond to external environmental pressures and adopt Activity-Based-Costing (ABC). This theory overemphasizes conformity and fails to consider the advantages of organizational non-conformance. A conflict of interests between physicians and management leads to physician resistance to accepting ABC. This paper investigates the Spanish government's response to this resistance by creating new public foundation hospitals, and

Scott D. Eriksen; Ignacio Urrutia

2005-01-01

35

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

Microsoft Academic Search

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

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

2005-01-01

36

A survey of activity-based costing in the U.K.'s largest companies  

Microsoft Academic Search

This paper contains the results of a 1994 survey of activity-based costing (ABC) in the U.K.'s largest 1000 companies. The survey was designed to ascertain the adoption rate of ABC in these companies, the specific application of ABC, the views of users on the success and importance of ABC, the views of non-ABC users on ABC and the possibilities for

John Innes; Falconer Mitchell

1995-01-01

37

Clinical process analysis and activity-based costing at a heart center.  

PubMed

Cost studies, productivity, efficiency, and quality of care measures, the links between resources and patient outcomes, are fundamental issues for hospital management today. This paper describes the implementation of a model for process analysis and activity-based costing (ABC)/management at a Heart Center in Sweden as a tool for administrative cost information, strategic decision-making, quality improvement, and cost reduction. A commercial software package (QPR) containing two interrelated parts, "ProcessGuide and CostControl," was used. All processes at the Heart Center were mapped and graphically outlined. Processes and activities such as health care procedures, research, and education were identified together with their causal relationship to costs and products/services. The construction of the ABC model in CostControl was time-consuming. However, after the ABC/management system was created, it opened the way for new possibilities including process and activity analysis, simulation, and price calculations. Cost analysis showed large variations in the cost obtained for individual patients undergoing coronary artery bypass grafting (CABG) surgery. We conclude that a process-based costing system is applicable and has the potential to be useful in hospital management. PMID:12118815

Ridderstolpe, Lisa; Johansson, Andreas; Skau, Tommy; Rutberg, Hans; Ahlfeldt, Hans

2002-08-01

38

A tutorial on activity-based costing of electronic health records.  

PubMed

As the American Recovery and Restoration Act of 2009 allocates $19 billion to health information technology, it will be useful for health care managers to project the true cost of implementing an electronic health record (EHR). This study presents a step-by-step guide for using activity-based costing (ABC) to estimate the cost of an EHR. ABC is a cost accounting method with a "top-down" approach for estimating the cost of a project or service within an organization. The total cost to implement an EHR includes obvious costs, such as licensing fees, and hidden costs, such as impact on productivity. Unlike other methods, ABC includes all of the organization's expenditures and is less likely to miss hidden costs. Although ABC is used considerably in manufacturing and other industries, it is a relatively new phenomenon in health care. ABC is a comprehensive approach that the health care field can use to analyze the cost-effectiveness of implementing EHRs. In this article, ABC is applied to a health clinic that recently implemented an EHR, and the clinic is found to be more productive after EHR implementation. This methodology can help health care administrators assess the impact of a stimulus investment on organizational performance. PMID:20042937

Federowicz, Marie H; Grossman, Mila N; Hayes, Bryant J; Riggs, Joseph

2010-01-01

39

Operations Assessment of Launch Vehicle Architectures using Activity Based Cost Models  

NASA Technical Reports Server (NTRS)

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.

Ruiz-Torres, Alex J.; McCleskey, Carey

2000-01-01

40

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

PubMed Central

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

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

2014-01-01

41

Determination of chest x-ray cost using activity based costing approach at Penang General Hospital, Malaysia  

PubMed Central

Background Activity based costing (ABC) is an approach to get insight of true costs and to solve accounting problems. It provides more accurate information on product cost than conventional accounting system. The purpose of this study was to identify detailed resource consumption for chest x-ray procedure. Methods Human resource cost was calculated by multiplying the mean time spent by employees doing specific activity to their per-minute salaries. The costs of consumables and clinical equipments were obtained from the procurement section of the Radiology Department. The cost of the building was calculated by multiplying the area of space used by the chest X-ray facility with the unit cost of public building department. Moreover, straight-line deprecation with a discount rate of 3% was assumed for calculation of equivalent annual costs for building and machines. Cost of electricity was calculated by multiplying number of kilo watts used by electrical appliance in the year 2010 with electricity tariff for Malaysian commercial consumers (MYR 0.31 per kWh). Results Five activities were identified which were required to develop one chest X-ray film. Human resource, capital, consumable and electricity cost was MYR 1.48, MYR 1.98, MYR 2.15 and MYR 0.04, respectively. Total cost of single chest X-ray was MYR 5.65 (USD 1.75). Conclusion By applying ABC approach, we can have more detailed and precise estimate of cost for specific activity or service. Choice of repeating a chest X-ray can be based on our findings, when cost is a limiting factor. PMID:22891098

Atif, Muhammad; Sulaiman, Syed Azhar Syed; Shafie, Asrul Akmal; Saleem, Fahad; Ahmad, Nafees

2012-01-01

42

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

NASA Technical Reports Server (NTRS)

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.

Mandell, Humboldt; Bilby, Curt

1991-01-01

43

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

SciTech Connect

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.

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

2013-07-01

44

Extending simulation modeling to activity-based costing for clinical procedures.  

PubMed

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 have difficulty coping with process variation in healthcare. Though the study model has a very specific application, it can be generalized to other settings simply by changing the input parameters. In essence, simulation was found to be an accurate and viable means to conduct an ABC analysis; in fact, the output provides more complete information than could be achieved through other conventional analyses, which gives management more leverage with which to negotiate contractual reimbursements. PMID:10895422

Glick, N D; Blackmore, C C; Zelman, W N

2000-04-01

45

Time-driven activity-based costing: a driver for provider engagement in costing activities and redesign initiatives.  

PubMed

Object To date, health care providers have devoted significant efforts to improve performance regarding patient safety and quality of care. To address the lagging involvement of health care providers in the cost component of the value equation, UCLA Health piloted the implementation of time-driven activity-based costing (TDABC). Here, the authors describe the implementation experiment, share lessons learned across the care continuum, and report how TDABC has actively engaged health care providers in costing activities and care redesign. Methods After the selection of pilots in neurosurgery and urology and the creation of the TDABC team, multidisciplinary process mapping sessions, capacity-cost calculations, and model integration were coordinated and offered to engage care providers at each phase. Results Reviewing the maps for the entire episode of care, varying types of personnel involved in the delivery of care were noted: 63 for the neurosurgery pilot and 61 for the urology pilot. The average cost capacities for care coordinators, nurses, residents, and faculty were $0.70 (range $0.63-$0.75), $1.55 (range $1.28-$2.04), $0.58 (range $0.56-$0.62), and $3.54 (range $2.29-$4.52), across both pilots. After calculating the costs for material, equipment, and space, the TDABC model enabled the linking of a specific step of the care cycle (who performed the step and its duration) and its associated costs. Both pilots identified important opportunities to redesign care delivery in a costconscious fashion. Conclusions The experimentation and implementation phases of the TDABC model have succeeded in engaging health care providers in process assessment and costing activities. The TDABC model proved to be a catalyzing agent for cost-conscious care redesign. PMID:25363431

McLaughlin, Nancy; Burke, Michael A; Setlur, Nisheeta P; Niedzwiecki, Douglas R; Kaplan, Alan L; Saigal, Christopher; Mahajan, Aman; Martin, Neil A; Kaplan, Robert S

2014-11-01

46

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

ERIC Educational Resources Information Center

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.

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

2007-01-01

47

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

Microsoft Academic Search

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

Jesper Thyssen; Poul Israelsen; Brian Jørgensen

2006-01-01

48

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

PubMed

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

Demeere, Nathalie; Stouthuysen, Kristof; Roodhooft, Filip

2009-10-01

49

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

SciTech Connect

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.

Warren, R.N.

1998-09-29

50

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

PubMed

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

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

2014-08-01

51

TOOLS FOR ESTIMATING OPERATION AND MAINTENANCE COSTS OF OFFSHORE WIND FARMS: State of the Art  

Microsoft Academic Search

Summary In 2000, ECN has defined a long term R&D program with the ultimate aim to lower the O&M (Operation and Maintenance) costs of offshore wind farms. Part of this R&D program focuses on the development of models to quantify and optimise the O&M aspects in the planning phase of wind farms. This has resulted in a software tool with

L. W. M. M. Rademakers; H. Braam; T. S. Obdam; N. Kruse

52

A generic feature-driven activity-based cost estimation process  

Microsoft Academic Search

Understanding how the building design influences construction costs is a challenging task for estimators. Estimators must recognize the design conditions that affect construction costs and customize the cost estimate accordingly. Estimators have different preferences for how and when to adjust a project's activities, resources, and resource productivity rates that form the basis of a cost estimate. Current tools and methodologies

Sheryl Staub-french; Martin Fischer; John C. Kunz; Boyd Paulson

2003-01-01

53

Optimal Medical Equipment Maintenance Service Proposal Decision Support System combining Activity Based Costing (ABC) and the Analytic Hierarchy Process (AHP).  

PubMed

This study describes a framework to support the choice of the maintenance service (in-house or third party contract) for each category of medical equipment based on: a) the real medical equipment maintenance management system currently used by the biomedical engineering group of the public health system of the Universidade Estadual de Campinas located in Brazil to control the medical equipment maintenance service, b) the Activity Based Costing (ABC) method, and c) the Analytic Hierarchy Process (AHP) method. Results show the cost and performance related to each type of maintenance service. Decision-makers can use these results to evaluate possible strategies for the categories of equipment. PMID:17281912

da Rocha, Leticia; Sloane, Elliot; M Bassani, Jose

2005-01-01

54

Status of costing hospital nursing work within Australian casemix activity-based funding policy.  

PubMed

Australia has a long history of patient level costing initiated when casemix funding was implemented in several states in the early 1990s. Australia includes, to some extent, hospital payment based on nursing intensity adopted within casemix funding policy and the Diagnostic Related Group system. Costing of hospital nursing services in Australia has not changed significantly in the last few decades despite widespread introduction of casemix funding policy at the state level. Recent Commonwealth of Australia National Health Reform presents change to the management of the delivery of health care including health-care costing. There is agreement for all Australian jurisdictions to progress to casemix-based activity funding. Within this context, nurse costing infrastructure presents contemporary issues and challenges. An assessment is made of the progress of costing nursing services within casemix funding models in Australian hospitals. Valid and reliable Australian-refined nursing service weights might overcome present cost deficiencies and limitations. PMID:22257324

Heslop, Liza

2012-02-01

55

Implementation of activity-based costing (ABC) to drive cost reduction efforts in a semiconductor manufacturing operation  

NASA Astrophysics Data System (ADS)

This paper presents a case study on the implementation of ABC to calculate the cost per wafer and to drive cost reduction efforts for a new IC product line. The cost reduction activities were conducted through the efforts of 11 cross-functional teams which included members of the finance, purchasing, technology development, process engineering, equipment engineering, production control, and facility groups. The activities of these cross functional teams were coordinated by a cost council. It will be shown that these activities have resulted in a 57% reduction in the wafer manufacturing cost of the new product line. Factors contributed to successful implementation of an ABC management system are discussed.

Naguib, Hussein; Bol, Igor I.; Lora, J.; Chowdhry, R.

1994-09-01

56

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

SciTech Connect

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.

Veil, J.A.

1991-12-31

57

Review of the cost-effectiveness of EPA's offshore oil and gas effluent guidelines  

SciTech Connect

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.

Veil, J.A.

1991-01-01

58

How can activity-based costing methodology be performed as a powerful tool to calculate costs and secure appropriate patient care?  

PubMed

Previous studies have shown the advantages of using activity-based costing (ABC) methodology in the health care industry. The potential values of ABC methodology in health care are derived from the more accurate cost calculation compared to the traditional step-down costing, and the potentials to evaluate quality or effectiveness of health care based on health care activities. This project used ABC methodology to profile the cost structure of inpatients with surgical procedures at the Department of Colorectal Surgery in a public teaching hospital, and to identify the missing or inappropriate clinical procedures. We found that ABC methodology was able to accurately calculate costs and to identify several missing pre- and post-surgical nursing education activities in the course of treatment. PMID:17489499

Lin, Blossom Yen-Ju; Chao, Te-Hsin; Yao, Yuh; Tu, Shu-Min; Wu, Chun-Ching; Chern, Jin-Yuan; Chao, Shiu-Hsiung; Shaw, Keh-Yuong

2007-04-01

59

[Clinical study using activity-based costing to assess cost-effectiveness of a wound management system utilizing modern dressings in comparison with traditional wound care].  

PubMed

In recent years, the concept of cost-effectiveness, including medical delivery and health service fee systems, has become widespread in Japanese health care. In the field of pressure ulcer management, the recent introduction of penalty subtraction in the care fee system emphasizes the need for prevention and cost-effective care of pressure ulcer. Previous cost-effectiveness research on pressure ulcer management tended to focus only on "hardware" costs such as those for pharmaceuticals and medical supplies, while neglecting other cost aspects, particularly those involving the cost of labor. Thus, cost-effectiveness in pressure ulcer care has not yet been fully established. To provide true cost effectiveness data, a comparative prospective study was initiated in patients with stage II and III pressure ulcers. Considering the potential impact of the pressure reduction mattress on clinical outcome, in particular, the same type of pressure reduction mattresses are utilized in all the cases in the study. The cost analysis method used was Activity-Based Costing, which measures material and labor cost aspects on a daily basis. A reduction in the Pressure Sore Status Tool (PSST) score was used to measure clinical effectiveness. Patients were divided into three groups based on the treatment method and on the use of a consistent algorithm of wound care: 1. MC/A group, modern dressings with a treatment algorithm (control cohort). 2. TC/A group, traditional care (ointment and gauze) with a treatment algorithm. 3. TC/NA group, traditional care (ointment and gauze) without a treatment algorithm. The results revealed that MC/A is more cost-effective than both TC/A and TC/NA. This suggests that appropriate utilization of modern dressing materials and a pressure ulcer care algorithm would contribute to reducing health care costs, improved clinical results, and, ultimately, greater cost-effectiveness. PMID:14999922

Ohura, Takehiko; Sanada, Hiromi; Mino, Yoshio

2004-01-01

60

Acute energy cost of multi-modal activity-based therapy in persons with spinal cord injury  

PubMed Central

Objective To examine acute energy costs of multi-modal activity-based therapy (ABT) in men and women with spinal cord injury (SCI). Study design Descriptive case series. Setting An outpatient center in California. Participants Seven men and women (age = 28.3 ± 11.6 years; duration of injury = 4.3 ± 2.5 years) with injury levels ranging from C5 to T8. Intervention Activity-based therapy. Outcome measures Oxygen uptake (VO2), energy expenditure (kcal/minute), SCI Metabolic Equivalent of Task (MET) (1 MET = 2.7 ml/kg/minute). Results Oxygen uptake (VO2) during ABT ranged from 5.10 to 8.62 ml/kg/minute, with VO2 consistently higher during modalities involving load bearing versus non-load bearing (P = 0.08). SCI MET values ranged from 1.89 to 3.24 and were significantly higher in subjects with mid-thoracic injury versus low-cervical injury (P = 0.01). Conclusion Data reveal that multi-modal ABT increases VO2 in persons with SCI, but energy expenditure is relatively low. Strategies must be identified to optimize energy expenditure in the SCI to reduce health risks. Modalities involving load bearing seem to be superior to non-load-bearing activities. VO2 was greater in response to load-bearing modalities than non-load-bearing modalities. It remains to be determined whether chronic ABT enhances cardiovascular fitness and reduces disease risks in this population. PMID:22118257

Harness, Eric Turner; Astorino, Todd A.

2011-01-01

61

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

SciTech Connect

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.

Not Available

1993-10-15

62

ABC's of Higher Education. Getting Back to the Basics: An Activity-Based Costing Approach to Planning and Financial Decision Making. AIR 1999 Annual Forum Paper.  

ERIC Educational Resources Information Center

This paper describes the activity-based costing approach used to report and capture the time spent by faculty for specified activities at one Midwestern university. For each department, four major areas (instruction, research, public service, and administration) and 14 activities were identified. During the annual goal-setting period, each faculty…

Cox, Kelline S.; Downey, Ronald G.; Smith, Laurinda G.

63

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

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.

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

64

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

Microsoft Academic Search

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)

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

2010-01-01

65

{open_quote}Met-Net{close_quote} offshore weather systems network. Cost-effective, modular, 20-platform system with standardized components enhances working safely offshore  

SciTech Connect

All offshore oil/gas platforms carry wind, pressure, and temperature sensors of some form or other to meet statutory requirements and to assist with daily operations. Helicopter and marine operations require more detailed information and in particular a knowledge of cloud height, visibility, and wave parameters, but the sensors are expensive. This can be overcome by networking of adjacent platforms which facilitates the sharing of the more expensive sensors and exchange of data. The next step is to network adjacent fields to provide backup for planned maintenance times and in the event of sensor failure. Ultimately all data can be sent ashore to assist in real-time operations and planning as well as input for weather forecasting.

Leggett, I.M. [Shell U.K. Exploration & Production, Aberdeen, Scotland (United Kingdom); Dolan, F.E. [InstallOcean Ltd., Alton, Hampshire (United Kingdom)

1995-04-01

66

Cost effective fully fed wind turbine HTS generator: An alternative to existing generators in offshore wind farms  

Microsoft Academic Search

The Wind Industry has been focusing more on offshore wind farms for the last 10 years. Since from the commercialization, the wind industry has been changing towards market trends and become market driven too. Current research is focusing on, how to reduce the downtime due to the system components like gearbox and environment conditions like harsh weather and inaccessibility factor.

S Umashankar; D P Kothari; D Vijayakumar; M Vasudevan; Bhanuprasad Chillapalli

2011-01-01

67

Offshore Wind Research (Fact Sheet)  

SciTech Connect

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.

Not Available

2011-10-01

68

Offshore Wind Energy Systems  

ERIC Educational Resources Information Center

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)

Musgrove, P.

1978-01-01

69

Offshore structures  

SciTech Connect

This monograph provides a comprehensive coverage of the engineering concepts and design of offshore structures for the exploration for and production of offshore oil. Although offshore structural engineering is a relatively new field, the literature contains thousands of papers and a few books addressing various aspects of the discipline. The purpose of this treatise is to offer a general conspectus and a state-of-the-art picture, with emphasis on pragmatic engineering applications, to all those associated with offshore structural design, research, and development.

Reddy, D.V.; Arockiasamy, M. (Florida Atlantic Univ., Boca Raton, FL (United States))

1991-01-01

70

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.

71

Offshore Wind Geoff Sharples  

E-print Network

energy capture · Get to beYer resource · Reduce opera?ons cost · Increase turbine the blades bigger? · How big will turbines get? #12;Offshore Resource is Good #12 risk averse U?li?es are risk averse Human customers demand cheap

Kammen, Daniel M.

72

Activity-based therapies  

Microsoft Academic Search

Summary  Therapeutic activity is a mainstay of clinical neurorehabilitation, but is typically unstructured and directed at compensation\\u000a rather than restoration of central nervous system function. Newer activity-based therapies (ABTs) are in early stages of development\\u000a and testing. The ABTs attempt to restore function via standardized therapeutic activity based on principles of experimental\\u000a psychology, exercise physiology, and neuroscience. Three of the best

Alexander W. Dromerick; Peter S. Lum; Joseph Hidler

2006-01-01

73

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

Microsoft Academic Search

Optimizing the layout of an offshore wind farm presents a significant engineering challenge. Most of the optimization literature to date has focused on land-based wind farms, rather than on offshore farms. Typically, energy production is the metric by which a candidate layout is evaluated. The Offshore Wind Farm Layout Optimization (OWFLO) project instead uses the levelized production cost as the

Christopher N. Elkinton; James F. Manwell; Jon G. McGowan

74

Risk-based inspection planning optimisation of offshore wind turbines  

Microsoft Academic Search

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

José G. Rangel-Ramírez; John D. Sørensen

2010-01-01

75

Seabed instability simplified model and application in offshore wind turbine  

Microsoft Academic Search

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

Zhang Yong-li; Li Jie

2009-01-01

76

Risk-based inspection planning optimisation of offshore wind turbines  

Microsoft Academic Search

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

José G. Rangel-Ramírez; John D. Sørensen

2012-01-01

77

Offshore space center (offshore launch site)  

SciTech Connect

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.

Harvey, D.G.

1980-07-01

78

Offshore wind farm layout optimization  

NASA Astrophysics Data System (ADS)

Offshore wind energy technology is maturing in Europe and is poised to make a significant contribution to the U.S. energy production portfolio. Building on the knowledge the wind industry has gained to date, this dissertation investigates the influences of different site conditions on offshore wind farm micrositing---the layout of individual turbines within the boundaries of a wind farm. For offshore wind farms, these conditions include, among others, the wind and wave climates, water depths, and soil conditions at the site. An analysis tool has been developed that is capable of estimating the cost of energy (COE) from offshore wind farms. For this analysis, the COE has been divided into several modeled components: major costs (e.g. turbines, electrical interconnection, maintenance, etc.), energy production, and energy losses. By treating these component models as functions of site-dependent parameters, the analysis tool can investigate the influence of these parameters on the COE. Some parameters result in simultaneous increases of both energy and cost. In these cases, the analysis tool was used to determine the value of the parameter that yielded the lowest COE and, thus, the best balance of cost and energy. The models have been validated and generally compare favorably with existing offshore wind farm data. The analysis technique was then paired with optimization algorithms to form a tool with which to design offshore wind farm layouts for which the COE was minimized. Greedy heuristic and genetic optimization algorithms have been tuned and implemented. The use of these two algorithms in series has been shown to produce the best, most consistent solutions. The influences of site conditions on the COE have been studied further by applying the analysis and optimization tools to the initial design of a small offshore wind farm near the town of Hull, Massachusetts. The results of an initial full-site analysis and optimization were used to constrain the boundaries of the farm. A more thorough optimization highlighted the features of the area that would result in a minimized COE. The results showed reasonable layout designs and COE estimates that are consistent with existing offshore wind farms.

Elkinton, Christopher Neil

79

Activity Based Performance Measurement  

E-print Network

RFID · Compare before and after --Cost reduction --Sales increase #12;© MIT Sloan School of Management;© MIT Sloan School of Management 4 Goal of ABPM and potential applications Objective--To develop tools of Management 5 Two insights that guide ABPM Costs are easy, benefits are hard · Costs come from an activity

Brock, David

80

Activity-based therapies.  

PubMed

Therapeutic activity is a mainstay of clinical neurorehabilitation, but is typically unstructured and directed at compensation rather than restoration of central nervous system function. Newer activity-based therapies (ABTs) are in early stages of development and testing. The ABTs attempt to restore function via standardized therapeutic activity based on principles of experimental psychology, exercise physiology, and neuroscience. Three of the best developed ABTs are constraint-induced therapy, robotic therapy directed at the hemiplegic arm, and treadmill training techniques aimed at improving gait in persons with stroke and spinal cord injury. These treatments appear effective in improving arm function and gait, but they have not yet been clearly demonstrated to be more effective than equal amounts of traditional techniques. Resistance training is clearly demonstrated to improve strength in persons with stroke and brain injury, and most studies show that it does not increase hypertonia. Clinical trials of ABTs face several methodological challenges. These challenges include defining dosage, standardizing treatment parameters across subjects and within treatment sessions, and determining what constitutes clinically significant treatment effects. The long-term goal is to develop prescriptive ABT, where specific activities are proven to treat specific motor system disorders. Activity-based therapies are not a cure, but are likely to play an important role in future treatment cocktails for stroke and spinal cord injury. PMID:17012056

Dromerick, Alexander W; Lum, Peter S; Hidler, Joseph

2006-10-01

81

Problems in offshore measurement  

SciTech Connect

Problems associated with offshore measurement are discussed here. There is no substitute for the human element on offshore platforms. Most problems in offshore measurement do have solutions. The sooner the problem is recognized and corrected can depend on how frequently a station can be visited. Advanced planning, good design, safe work practices and a realistic approach are the only solutions to offshore measurement problems. Good work practices, with well trained personnel can avert many problems and offer smooth safe operations.

Bitterly, D.G.

1984-04-01

82

California offshore wind energy potential Michael J. Dvorak a,*, Cristina L. Archer b  

E-print Network

) maintenance costs of offshore turbines are higher. Although offshore wind turbines can be more costly at high horizontal resolution (5 and 1.67 km) to calculate annual 80 m wind speeds (turbine hub height/2006 and the entirety of 2007 (12 months). A 5 MW offshore wind turbine was used to create a preliminary resource

83

Solar power satellite offshore rectenna study  

NASA Technical Reports Server (NTRS)

Offshore rectennas are feasible and cost competitive with land rectennas but the type of rectenna suitable for offshore use is quite different from that specified in the present reference system. A nonground plane design minimizes the weight and greatly reduces the number of costly support towers. This perferred design is an antenna array consisting of individually encapsulated dipoles with reflectors or tagis supported on feed wires. Such a 5 GW rectenna could be built at a 50 m water depth site to withstand hurricane, winter storm, and icing conditions for a one time cost of $5.7 billion. Subsequent units would be about 1.3 less expensive. More benign and more shallow water sites would result in substantially lower costs. The major advantage of an offshore rectenna is the removal of microwave radiation from populated areas.

1980-01-01

84

Offshore oil in the alaskan arctic.  

PubMed

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 nature gas within U.S. jurisdiction. Most (65 to 70 percent) of these estimated reserves are believed to occur 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. PMID:17813239

Weeks, W F; Weller, G

1984-07-27

85

Offshore oil in the Alaskan Arctic  

NASA Technical Reports Server (NTRS)

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.

Weeks, W. F.; Weller, G.

1984-01-01

86

Design of support structures for offshore wind turbines  

Microsoft Academic Search

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

J. van der Tempel

2006-01-01

87

On the Modelling of a Floating Offshore Wind Turbine  

Microsoft Academic Search

The location of wind turbines on floating structures offshore would allow an immense resource to be tapped without the drawbacks large developments can have on public opinion. There are, however, potentially significant technical and cost drawbacks. This article describes the theory and results of research work aimed at developing analytical tools for evaluating the performance of floating offshore wind farms.

Andrew R. Henderson; Minoo H. Patel

2003-01-01

88

Maintenance strategies for deep-sea offshore wind turbines  

Microsoft Academic Search

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

Ingrid Bouwer Utne

2010-01-01

89

Offshore wind energy prospects  

Microsoft Academic Search

In last two years offshore wind energy is becoming a focal point of national and non national organizations particularly after the limitations of fossil fuel consumption, adopted by many developed countries after Kyoto conference at the end of 1997 on global climate change. North Europe is particularly interested in offshore for the limited land areas still available, due to the

Gaetano Gaudiosi

1999-01-01

90

Structure of Offshore Flow  

Microsoft Academic Search

The horizontal and vertical structure of the mean flow and turbulent fluxes are examined using aircraft observations taken near a barrier island on the east coast of the United States during offshore flow periods. The spatial structure is strongly influenced by the surface roughness and surface temperature discontinuities at the coast. With offshore flow of warm air over cool water,

Dean Vickers; L. Mahrt; Jielun Sun; Tim Crawford

2001-01-01

91

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

Microsoft Academic Search

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

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

2008-01-01

92

Bundled pipe speeds offshore laying  

SciTech Connect

Technology which allows pipelines to be installed in bundles is expediting pipelay operations in the North Sea. This paper reports how the piggyback system was recently used on 60 km of North Sea gas pipelines for three major projects. For 7 years the practice of installing two or more pipelines in one operation has become an established practice for North Sea offshore oil and gas projects. The technique, commonly referred to as a piggyback operation, reduces installation costs, improves operation reliability, and cuts maintenance time.

Brockbank, J. (Avon Industrial Polymers Ltd., Melksham, Wiltshire (GB))

1990-05-07

93

Solar power satellite offshore rectenna study  

NASA Technical Reports Server (NTRS)

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.

1980-01-01

94

Human Rights, Academic Freedom, and Offshore Academics  

ERIC Educational Resources Information Center

Despite the carnage wrought on higher education by the Great Recession, evidence persists that the sector is still host to a speculator psychology. One example is the unabated stampede to set up branches and programs overseas. Colleges have many reasons to go offshore: (1) to reduce costs; (2) to build their "brands" in "emerging markets"; and (3)…

Ross, Andrew

2011-01-01

95

The East Spar development -- Novel subsea production system and control buoy allow optimum, low cost development of this remote field offshore Western Australia  

SciTech Connect

The remote East Spar gas/condensate field is being developed using a subsea production system operated via an unmanned control buoy. This novel concept has been developed by an Operator-Contractor Alliance in a short time frame with considerable cost savings. This paper outlines the evolution of the development concept, the benefits of the Alliance structure in the evolution process and the novel technologies and systems used on the project. The resulting development concepts have potential application to remote oil and gas fields worldwide.

Campbell, P.F.; Lawlor, C.D.F.; Brown, R.J.; Inglis, A.E.

1996-12-31

96

Design study and economic assessment of multi-unit offshore wind energy conversion systems application. Volume 1: Executive summary  

Microsoft Academic Search

Offshore wind energy conversion system design, both deep and shallow water, are evaluated. The costs of building offshore platforms and underwater cables for power transmission are discussed. Maps show the U.S. ocean areas most suitable for optimum results.

L. A. Kilar

1979-01-01

97

Energy from Offshore Wind: Preprint  

SciTech Connect

This paper provides an overview of the nascent offshore wind energy industry including a status of the commercial offshore industry and the technologies that will be needed for full market development.

Musial, W.; Butterfield, S.; Ram, B.

2006-02-01

98

Offshore Renewable Energy Solutions  

E-print Network

and maximising energy extraction. Offshore understanding Our long track record working with the oil and gas and fisheries data. We also work collaboratively, with cross-cutting project teams, innovators in the supply chain and a range of international academic and industry players. Trusted advisors As scientific

99

The state of offshore  

SciTech Connect

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.

Nelson, B.F.

1991-01-01

100

Efficient high-permeability fracturing offshore  

SciTech Connect

Offshore operators can more efficiently and effectively perform high-permeability and conventional hydraulic fracture treatments by blending treatment slurries under microprocessor control, adding undiluted acid on-the-fly, and altering sand concentrations and other slurry properties instantaneously. A two-skid system has been designed with these considerations in mind. The system, which can be shipped efficiently in ISO containers, has been tested on fluids up to 210-cp viscosity and can step or ramp sand concentrations up to a maximum of 20 lb/gal. All additives, including acid treatments, are added on-the-fly; leftover additives and acids may be stored for future jobs. The system may be applied in most conditions, including offshore wells requiring conventional or high-permeability fracture treatments and certain land-based wells in remote areas where a compact skid is needed. Three significant benefits have resulted from using the compact-skid system: offshore operators have been able to ship the skid system at 20% of shipping costs of non-ISO equipment; on-the-fly mixing has prevented material waste associated with batch-mixing; and volumes pumped on actual jobs have closely matched job designs. Data have been collected from several Gulf of Mexico jobs run with the two-part skid system that has been designed for conducting hydraulic fracture treatments from offshore rigs.

Phillipi, M.; Farabee, M.

1996-12-31

101

Electrical Collection and Transmission Systems for Offshore Wind Power: Preprint  

SciTech Connect

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.

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

2007-03-01

102

Unraveling Higher Education's Costs.  

ERIC Educational Resources Information Center

The activity-based costing (ABC) method of analyzing institutional costs in higher education involves four procedures: determining the various discrete activities of the organization; calculating the cost of each; determining the cost drivers; tracing cost to the cost objective or consumer of each activity. Few American institutions have used the…

Gordon, Gus; Charles, Maria

1998-01-01

103

Review of Methodologies for Offshore Wind Resource Assessment in European Seas  

Microsoft Academic Search

The wind resource offshore is generally larger than at geographically nearby onshore sites, which can offset the higher installation,\\u000a operation and maintenance costs associated with offshore wind parks. Successful offshore wind energy development relies to\\u000a some extent on accurate prediction of wind resources, but since installing and operating a meteorological mast in situ is expensive, prospective sites must be carefully evaluated.

A. M. Sempreviva; R. J. Barthelmie; S. C. Pryor

2008-01-01

104

Electrokinetic improvement of offshore foundations  

NASA Astrophysics Data System (ADS)

Offshore and near-shore structures for energy exploration and production, harbour work and other facilities are often situated on very soft marine clay deposits that have shear strengths of a few kilopascals. The design of foundations embedded in these soft deposits often poses a challenge for geotechnical engineers, i.e., to satisfy the bearing capacity requirement, while at the same time minimizing the embedment depth and dimensions of the foundation due to cost considerations. The present study investigates the possibility of using electrokinetics to strengthen the soil adjacent to skirted foundations embedded in soft marine deposits and, thus, to improve the load carrying capacity of the foundations. The innovative feature of this approach as compared to soil improvement methods commonly adopted in practice is that the focus of strengthening is on the interface between the soil and embedded foundation, in terms of enhancement of adhesion and cementation. The thesis presents a summary of the method and results of a series of electrokinetic tests conducted on natural and simulated marine clays in small-scale and large-scale laboratory testing facilities. Steel plates and steel cylinders are used to simulate skirted foundations. A low dc voltage is applied via steel electrodes installed around the foundation models. The effects of electrokinetics are evaluated through changes in the geotechnical properties of the soil and load carrying capacities of the foundation model after treatment. The results demonstrate that the load carrying capacity of the skirted foundation model and the undrained shear strength of the adjacent soil increase by a factor of three after electrokinetic treatment. The clay adheres strongly to the inside and outside walls of the foundation model, indicating bonding occurs between the soil and steel after treatment. The treatment increases the soil undrained modulus and also induces a preconsolidation pressure of the remoulded clay, thereby reducing potential settlement of the foundation. The new technology described in this thesis has potential application in offshore engineering for increasing the load carrying capacity of skirted foundations installed in soft clayey sediments, as well as for rehabilitation of existing offshore structures.

Micic, Silvana

105

Proposing a Formalised Model for Mindful Information Systems Offshoring  

NASA Astrophysics Data System (ADS)

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.

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

106

TRANSMISSION OPTIONS FOR OFFSHORE WIND FARMS IN THE UNITED STATES Sally D. Wright, PE  

E-print Network

TRANSMISSION OPTIONS FOR OFFSHORE WIND FARMS IN THE UNITED STATES Sally D. Wright, PE Anthony L an introduction to transmission issues for offshore wind farms in North America, aimed towards non transmission has proved to be challenging and costly in Europe, and will present additional challenges

Massachusetts at Amherst, University of

107

The optimal quantity of quick response manufacturing for an onshore and offshore sourcing model  

Microsoft Academic Search

Consumer demand for innovative and fashion products is highly unpredictable, but could be fulfilled through quick response manufacturing (QRM). However, the extra cost is usually considered to be a barrier to such an approach. The newsvendor algorithm is applied to demonstrate that a strategic combination of onshore and offshore manufacturing can be more profitable than a 100% offshore approach, highlighting

Roger D. H. Warburton; Roy Stratton

2005-01-01

108

Antecedents of ISD Offshoring Outcomes: Exploring Differences between India and China  

Microsoft Academic Search

Prior research in IS offshoring has highlighted issues in software development projects arising from differences in culture, from status differences and resource inequalities, as well as from asset-related characteristics. Based on Practice Theory and Transaction Cost Economics, we integrate these three perspectives into a single research model explaining the relation between the outcome of offshore ISD projects and cultural, social,

Kai Spohrer; Armin Heinzl; Yan Li

2011-01-01

109

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

Microsoft Academic Search

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,

Mark J Kaiser; Brian F Snyder

2012-01-01

110

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

Microsoft Academic Search

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

T. G. van Engelen

111

Offshore~WMEP - Monitoring offshore wind energy use  

Microsoft Academic Search

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

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

112

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

SciTech Connect

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.

Not Available

2011-02-01

113

U.S. Offshore Wind Manufacturing and Supply Chain Development  

SciTech Connect

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.

Hamilton, Bruce Duncan [Navigant Consulting, Inc.

2013-02-22

114

Customer profitability analysis: : an activity-based costing approach  

Microsoft Academic Search

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

Malcolm Smith; Shane Dikolli

1995-01-01

115

Activity-based costing in services: literature bibliometric review.  

PubMed

This article is aimed at structuring a bibliography portfolio to treat the application of the ABC method in service and contribute to discussions within the scientific community. The methodology followed a three-stage procedure: Planning, execution and Synthesis. Also, the process ProKnow-C (Knowledge Process Development - Constructivist) was used in the execution stage. International databases were used to collect information (ISI Web of Knowledge and Scopus). As a result, we obtained a bibliography portfolio of 21 articles (with scientific recognition) dealing with the proposed theme. PMID:23518506

Stefano, Nara Medianeira; Filho, Nelson Casarotto

2013-12-01

116

Security Issues with Offshore Outsourcing  

Microsoft Academic Search

Offshore coding is booming throughout North America and Europe, with Gartner group predicting that by 2004 80% of US companies will consider outsourcing critical services to foreign-based developers. But as this offshore outsourcing trend accelerates, concerns that enterprises are exposing themselves to undue risk of cyber-terrorism and industrial property theft are increasing.

Philip Hunter

2003-01-01

117

Pioneering offshore excellence  

SciTech Connect

Hibernia Management and Development Company Ltd. (HMDC) was formed in 1990 by a consortium of oil companies to develop their interests in the Hibernia and Avalon reservoirs offshore Newfoundland in a safe and environmentally responsible manner. The reservoirs are located 315km ESE of St. John`s in the North Atlantic. The water depth is about 80m. The entire Hibernia field is estimated to contain more than three billion barrels of oil in place and the owners development plan area is estimated to contain two billion barrels. Recoverable reserves are estimated to be approximately 615 million barrels. The Hibernia reservoir, the principle reservoir, is located at an average depth of 3,700m. HMDC is building a large concrete gravity based structure (GBS) that which will support the platform drilling and processing facilities and living quarters for 280 personnel. In 1997 the platform will be towed to the production site and production will commence late 1997. Oil will be exported by a 2 km long pipeline to an offshore loading system. Dynamically positioned tankers will then take the oil to market. Average daily production is expected to plateau between 125,000 and 135,000 BOPD. It will be the first major development on the east coast of Canada and is located in an area that is prone to pack ice and icebergs.

Kent, R.P.; Grattan, L.

1996-11-01

118

Floating offshore structure  

SciTech Connect

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.

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

1985-05-28

119

What Does it Really Cost? Allocating Indirect Costs.  

ERIC Educational Resources Information Center

Better managerial control in terms of decision making and understanding the costs of a system/service result from allocating indirect costs. Allocation requires a three-step process: selecting cost objectives, pooling related overhead costs, and selecting costs bases to connect the objectives to the pooled costs. Argues that activity-based costing

Snyder, Herbert; Davenport, Elisabeth

1997-01-01

120

2010 Cost of Wind Energy Review  

SciTech Connect

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.

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

2012-04-01

121

Bahrain's offshore banking center  

SciTech Connect

The economic effects of Bahrain's schemes for licensing offshore banking units (OBUs) were the immediate response of major international banks and the financial services the banking center has rendered by improving regional money and exchange markets at a time when a Middle East link was needed to service the increasing demand for oil-wealth banking services. Bahrain's leadership also created a favorable climate. Aggressive competition from banks in Kuwait and Saudi Arabia have caused some friction, but informal supervision by the Bahrain Monetary Agency (BMA) should be able to avoid serious difficulty. Bahrain's success required a banking infrastructure, a free-enterprise system, a willingness to maintain banking standards, a country small enough to benefit directly from OBU income, and a gap in nearby competing centers. 39 references, 1 figure, 5 tables. (DCK)

Gerakis, A.S.; Roncesvalles, O.

1983-01-01

122

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

ERIC Educational Resources Information Center

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…

Ismail, Noor Azizi

2010-01-01

123

The Future of Offshore Wind Energy  

E-print Network

energy prices · Increasing demand for energy and RECs · Aging fleet of coal and nuclear plants not easily-wide economic development: Delaware as offshore staging hub · Stable prices · Clean energy · Meet RPS obligation1 The Future of Offshore Wind Energy #12;2 #12;3 Offshore Wind Works · Offshore wind parks: 28

Firestone, Jeremy

124

Fair shares: a preliminary framework and case analyzing the ethics of offshoring.  

PubMed

Much has been written about the offshoring phenomenon from an economic efficiency perspective. Most authors have attempted to measure the net economic effects of the strategy and many purport to show that "in the long run" that benefits will outweigh the costs. There is also a relatively large literature on implementation which describes the best way to manage the offshoring process. But what is the morality of offshoring? What is its "rightness" or "wrongness?" Little analysis of the ethics of offshoring has been completed thus far. This paper develops a preliminary framework for analyzing the ethics of offshoring and then applies this framework to basic case study of offshoring in the U.S. The paper following discusses the definition of offshoring; shifts to the basic philosophical grounding of the ethical concepts; develops a template for conducting an ethics analysis of offshoring; applies this template using basic data for offshoring in the United States; and conducts a preliminary ethical analysis of the phenomenon in that country, using a form of utilitarianism as an analytical baseline. The paper concludes with suggestions for further research. PMID:19629753

Gordon, Cameron; Zimmerman, Alan

2010-06-01

125

Meren field water injection project offshore Nigeria  

SciTech Connect

The Meren Water Injection Project, which is one of the largest in West Africa in terms of injection volume, secondary reserves to be recovered and cost, is located in the Meren field offshore Nigeria. This study presents an updated comprehensive plan to deplete 7 reservoir units in sands that have been producing under solution gas drive and gravity segregation with minimal water influx. The reservoir units contain ca 80% of the original oil-in-place in Meren field. Detailed studies have been undertaken to evaluate the performances of the 7 reservoirs with a view to developing a secondary recovery plan which has been brought into reality. Injection was to start in mid-1982 but was delayed until mid-1983. The effect of the delay and the changing of injector locations on recovery and cost is discussed.

Adetoba, L.A.

1984-04-01

126

The application of PLC distributed input/output technology offshore  

SciTech Connect

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.

Glendening, J.A.

1995-12-01

127

Offshore industry executives meet  

SciTech Connect

The future of the Gulf of Mexico is tied to the overall future of oil/gas on the international market as it relates to the US. Conquering this last frontier, possibly only through development of technology, was one of the themes covered in the 21st Annual Meeting of the National Ocean Industries Association held in early April, 1993 in Washington, D.C. Oil is the major source for foreign exchange but there are major uncertainties in predicting the future. The swing (imports vs. exports) is two million barrels per day. The big oil users (heavy industry) have reduced consumption. The last big uncertainty is the environmental policies of the West. Development of resources in the Gulf was the third record year in a row in 1992. The potential for hydrocarbon discoveries is significant, a substantial number of new fields have been made and significant discoveries are likely to continue. More than 100 trillion cubic feet of natural gas lies undiscovered offshore - 35% of undiscovered domestic resources. The oil potential exceeds nine billion barrels, more than any other basin except Alaska.

Burns, R.F.

1993-05-01

128

Structure for offshore exploitation  

SciTech Connect

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.

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

1984-02-28

129

Combination offshore drilling rig  

SciTech Connect

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.

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

1986-07-29

130

Reassessment of offshore platforms  

SciTech Connect

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.

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

1993-05-01

131

Keeping earnings offshore  

SciTech Connect

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.

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

1994-04-01

132

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

Microsoft Academic Search

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

Jannie Jessen Nielsen; John Dalsgaard Sørensen

2011-01-01

133

Activity based interfaces in online social networks  

E-print Network

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 ...

Laraqui, Jawad

2007-01-01

134

Large CO2 reductions via offshore wind power matched to inherent storage in energy end-uses  

E-print Network

of the planetary boundary layer (PBL) over water and a wind- electric technology analysis linking turbine and tower, 2002]. Disadvantages of offshore wind include: higher installation and maintenance costs in comparisonLarge CO2 reductions via offshore wind power matched to inherent storage in energy end-uses Willett

Jacobson, Mark

135

What can wave energy learn from offshore oil and gas?  

PubMed

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

Jefferys, E R

2012-01-28

136

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

SciTech Connect

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.

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

2012-09-01

137

Offshore Renewable Energy R&D (Fact Sheet)  

SciTech Connect

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.

Not Available

2011-10-01

138

Ultrasonic thickness testing of aging offshore structures  

E-print Network

The objectives of this thesis concern the use of ultrasonic thickness (UT) testing for use in the offshore industry. Evidence from prior studies conducted at Texas A&M University suggests that the corrosion on the surface of offshore structural...

Ellison, Brian Kirk

2012-06-07

139

Floating axis wind turbines for offshore power generation—a conceptual study  

NASA Astrophysics Data System (ADS)

The cost of energy produced by offshore wind turbines is considered to be higher than land based ones because of the difficulties in construction, operation and maintenance on offshore sites. To solve the problem, we propose a concept of a wind turbine that is specially designed for an offshore environment. In the proposed concept, a floater of revolutionary shape supports the load of the wind turbine axis. The floater rotates with the turbine and the turbine axis tilts to balance the turbine thrust, buoyancy and gravity. The tilt angle is passively adjustable to wind force. The angle is 30° at rated power. The simplicity of the system leads to further cost reduction of offshore power generation.

Akimoto, Hiromichi; Tanaka, Kenji; Uzawa, Kiyoshi

2011-10-01

140

Activity-Based Physics - University of Maryland  

NSDL National Science Digital Library

The multi-institution Activity-Based Physics project aims to sustain and enhance efforts to render introductory physics courses more effective and exciting at both the secondary and college level. It uses the outcomes of physics education research along with flexible computer tools to promote activity-based models of physics instruction. This program includes the refinement of existing written materials, apparatus, instructional techniques, and computer software and hardware; the creation of new instructional materials and approaches; and dissemination. This web site contains problem-solving resources from the Activity-Based Physics curriculum. It includes tutorials and how to use them, homework assignments, and other physics problems. The materials can be viewed by type of problem or by topic. Many of these problems come from the book "Teaching Physics with the Physics Suite."

Redish, Edward F.

2003-10-10

141

Superconducting light generator for large offshore wind turbines  

NASA Astrophysics Data System (ADS)

Offshore wind market demands higher power rate and reliable turbines in order to optimize capital and operational cost. These requests are difficult to overcome with conventional generator technologies due to a significant weight and cost increase with the scaling up. Thus superconducting materials appears as a prominent solution for wind generators, based on their capacity to held high current densities with very small losses, which permits to efficiently replace copper conductors mainly in the rotor field coils. However the state-of-the-art superconducting generator concepts still seem to be expensive and technically challenging for the marine environment. This paper describes a 10 MW class novel direct drive superconducting generator, based on MgB2 wires and a modular cryogen free cooling system, which has been specifically designed for the offshore wind industry needs.

Sanz, S.; Arlaban, T.; Manzanas, R.; Tropeano, M.; Funke, R.; Ková?, P.; Yang, Y.; Neumann, H.; Mondesert, B.

2014-05-01

142

Current facts about offshore wind farms  

Microsoft Academic Search

This paper reviews offshore wind projects with a wide perspective. The current situation of the offshore wind market is presented, pointing out the countries leading the process in terms of installed capacity and in terms of technological leadership. Feasibility studies of alternative offshore wind farms (OWFs) are interesting not only in relation to the business but in relation to the

A. Madariaga; S. Ceballos

2012-01-01

143

The politics and economics of offshore outsourcing  

Microsoft Academic Search

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

N. Gregory Mankiw; Phillip Swagel

2006-01-01

144

Offshoring in the New Global Political Economy  

Microsoft Academic Search

abstract? This essay challenges claims by economists and management scholars that ‘offshoring’ is simply another form of trade with mutual benefits. I argue that reducing wages through offshoring leads to wealth creation for shareholders but not necessarily for countries and employees, and that many displaced workers have difficulty ‘trading up’ to higher skilled jobs. Offshoring is a new phenomenon that

David L. Levy

2005-01-01

145

Offshore Scientific and Technical Publications: 1985 Annual  

Microsoft Academic Search

The Minerals Management Service (MMS) established a scientific and technical publications program for Offshore Minerals Management in 1984. The objective of the program is to make the investigative findings of the Offshore Program available to the public. The Technical Publications Unit (TIP) within the Office of Offshore Information and Publications operates this program. The TPU has assigned series designations and

Bajusz

1988-01-01

146

Offshore QRA and the ALARP principle  

Microsoft Academic Search

A discussion is presented of the use of QRA within a requirement, of the UK offshore safety case regime, to demonstrate that risks from offshore major accidents are ALARP. General considerations are given to uncertainties in failure and incident data, assumptions and consequence methodologies within the analysis element of offshore QRA. The validity of risk results arising from the analysis

Stan Schofield

1998-01-01

147

European offshore oil and gas, 1985  

SciTech Connect

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.

Not Available

1985-01-01

148

17 CFR 230.904 - Offshore resales.  

Code of Federal Regulations, 2013 CFR

... 2013-04-01 false Offshore resales. 230.904 Section...Act of 1933 § 230.904 Offshore resales. (a) An...offer or sale are made in an offshore transaction; (2) No...prior to the expiration of the distribution compliance period...

2013-04-01

149

17 CFR 230.904 - Offshore resales.  

Code of Federal Regulations, 2012 CFR

... 2012-04-01 false Offshore resales. 230.904 Section...Act of 1933 § 230.904 Offshore resales. (a) An...offer or sale are made in an offshore transaction; (2) No...prior to the expiration of the distribution compliance period...

2012-04-01

150

17 CFR 230.904 - Offshore resales.  

Code of Federal Regulations, 2010 CFR

... 2010-04-01 false Offshore resales. 230.904 Section...Act of 1933 § 230.904 Offshore resales. (a) An...offer or sale are made in an offshore transaction; (2) No...prior to the expiration of the distribution compliance period...

2010-04-01

151

17 CFR 230.904 - Offshore resales.  

... 2014-04-01 false Offshore resales. 230.904 Section...Act of 1933 § 230.904 Offshore resales. (a) An...offer or sale are made in an offshore transaction; (2) No...prior to the expiration of the distribution compliance period...

2014-04-01

152

17 CFR 230.904 - Offshore resales.  

Code of Federal Regulations, 2011 CFR

... 2011-04-01 false Offshore resales. 230.904 Section...Act of 1933 § 230.904 Offshore resales. (a) An...offer or sale are made in an offshore transaction; (2) No...prior to the expiration of the distribution compliance period...

2011-04-01

153

Off and out: the spaces for certification—offshore outsourcing in St Petersburg, Russia  

Microsoft Academic Search

The offshore outsourcing of software-production services to places outside of the established networks in well-developed core economies is a dynamic and topical aspect of contemporary reorganizations in the software-development industries. Software production and related information technology services are outsourced to firms offshore or, more specifically, to places where labor skills appropriate to these industries are available at lower costs. Notable

Melanie Feakins

2007-01-01

154

Transfer terminal for offshore production  

SciTech Connect

A mooring station and transfer terminal for offshore hydrocarbon production is provided, comprising a coaxial riser linking underwater production and safety manifolds to surface lines. An underwater connector and quick release means are provided to facilitate rapid connection and disconnection of the riser pipes.

Arnaudeau, M.

1983-02-01

155

Deep water offshore jacket removal  

SciTech Connect

After an oil or gas field is no longer economically exploitable, the offshore structure is no longer of any use. This means that a solution must be found for the platform abandonment. There are two options to choose from: leave the platform in place or remove the platform. In this paper the second option is further investigated.

Herel, E.C.P. van; Wijninckx, A. [HeereMac VOF, Leiden (Netherlands); Wardenier, J. [Delft Univ. of Technology (Netherlands)

1995-12-31

156

Re-Regulating Offshore Finance?  

Microsoft Academic Search

This article explores global efforts to regulate offshore finance in the wake of international concern about the effects of so-called harmful tax competition, as well as money laundering and terrorist financing (the latter a relatively new category since September 11, 2001). In the mid-1990s, a number of multilateral organizations, from the Organization for Economic Cooperation and Development (OECD) to the

B. Maurer

2008-01-01

157

Offshore oil: Correctness of perspective  

Microsoft Academic Search

Except for the Gulf of Mexico, the offshore oil industry has been virtually banned from the US Exclusive Economic Zone for ten years. The oil potential in Alaska's Arctic National Wildlife Refuge (ANWR) is also off limits. The Gulf of Mexico is the only place with prospects for future success and a number of companies both large and small are

1993-01-01

158

Towers for Offshore Wind Turbines  

Microsoft Academic Search

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

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

2010-01-01

159

Activity-Based Anorexia In Female Rats  

Microsoft Academic Search

Activity-based anorexia (ABA) in an animal model of anorexia nervosa, in which rats are allowed free access to running wheels but only 2 h food access per day. Rats exposed to this paradigm display symptoms similar to those seen in anorexic women. These include decreased food intake, increased activity, rapid body weight loss, and estrous cycle disruptions. Despite that anorexia

Deann Dixon

2003-01-01

160

Classification of offshore mass movements  

SciTech Connect

More than 100 offshore mass-movement deposits have been studied in Holocene and Pleistocene sediments. The processes can be divided into three main types: slides/slumps, plastic flows, and turbidity currents, of which 13 main varieties have been recognized. The three types are differentiated mainly by motion, architecture, and shape of failure surface. For slides, the morphology of deposits can usually be linked to a process, but for plastic flows and turbidity currents, information about the motion is mainly provided by the sedimentary record. A static classification based on these features is given, and is related to a dynamic classification system to try to underline the morphological transformation of an offshore event from initiation to deposition.

Mulder, T. [Inst. Francais de Recherches pour l`Exploitation de la Mer, Plouzane (France). Dept. de Geosciences Marines]|[Ecole Nationale Superieure de Geologie, Vandeuvre-les-Nancy (France). Lab. de Geomecanique; Cochonat, P. [Inst. Francais de Recherches pour l`Exploitation de la Mer, Plouzane (France). Dept. de Geosciences Marines

1996-01-01

161

Huntington Beach offshore Parcel 14  

Microsoft Academic Search

Parcel 14 of the Huntington Beach Oil Field (California) is located down the west plunge of a large east-west-trending asymmetrical anticlinal structure. This offshore structure extends from the shore westward approximately 3 miles. The south flank of the anticline is steep-dipping with known dips up to 65°. The north flank has an average dip of 10$. Faulting is minor on

1966-01-01

162

Testable Requirements for Offshore Outsourcing  

Microsoft Academic Search

Given that software offshore outsourcing is a business relationship, we assume that a contract is required in order to define\\u000a what services are requested from a contracted entity and how these services are to be delivered to the satisfaction of the\\u000a contractor. We first argue that, at the heart of the quality assurance facets of such a contract, we must

Jean-pierre Corriveau

2007-01-01

163

OFFSHORE DISTRIBUTION OF HYDRACTINIA ECHINATA  

Microsoft Academic Search

ABSTRAcr New distributional records for this hydroid are listed from 81 offshore locations along the Middle Atlantic region and from Georges Bank, off MassachusettS. The species was commonly found living on the shells of ani· mals having some degree of mobility-sea scallops (Pltlco­ pecten magelllln;cus), and gastropod shells inhabited by pagurid crabs. The bottom substrate for these animals is

ARTHUR S. MERRILL

164

Offshore oil: Correctness of perspective  

SciTech Connect

Except for the Gulf of Mexico, the offshore oil industry has been virtually banned from the US Exclusive Economic Zone for ten years. The oil potential in Alaska's Arctic National Wildlife Refuge (ANWR) is also off limits. The Gulf of Mexico is the only place with prospects for future success and a number of companies both large and small are determined to move forward. The depressed price of oil does not encourage development but recently gas prices in the US have increased, making offshore gas development more feasible. Perhaps most significant is development and application of new technology and more intense management to make sure it works. The offshore oil companies and support industries have made significant technological advances, expending over and above the dollars paid in taxes, lease fees, and royalties. The ocean industries harbor a great reservoir of high technology knowledge. They have demonstrated the ability to successfully meet a vast array of challenges in exploring for, drilling, and producing oil and gas in extreme conditions. These facts beg the question as to the rational basis of each and every regulation and the ban on drilling.

Burns, R.F.

1993-05-01

165

Netherlands Q/8 - A development: Europe's smallest offshore gas field  

SciTech Connect

BP brought the Q/8-A offshore gas field on stream in October 1986. Q/8-A is the first fully integrated unmanned offshore development in the North Sea. Estimated reserves of only 37 bcf make the field the smallest offshore gas development in Europe. Economic development of such a small reserve demanded the innovative use of proven technology. Minimum facilities compatible with safe and efficient operations were designed. An unmanned platform with free water knock-out, glycol injection and a sphere launcher, feeds gas via a pipeline beneath the coastal dunes to a dedicated onshore processing terminal. A rigorous search for cost reductions during pre-project and project engineering, coupled with the favourable economic climate which the Netherlands provides, led to the viability of this most marginal of field developments. Several lessons were learned from Q/8-A development project. A minimum cost development with a short project schedule demands a tightly defined technical statement of requirements. Do not underestimate the level of detailed effort necessary to develop and to operate the smallest of reserves.

Petterson, M.E.; Tibbitt, N.C.T.

1987-01-01

166

Offshore petroleum security: Analysis of offshore security threats, target attractiveness, and the international legal framework for the protection and security of offshore petroleum installations.  

E-print Network

??The offshore petroleum industry is of critical importance to the global economy. Offshore petroleum installations are considered elements of critical national infrastructure in many nation-States… (more)

Kashubsky, Mikhail

2011-01-01

167

Deepwater advanced diving systems that support the offshore oil field  

SciTech Connect

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.

Carnevale, S.J.

1983-03-01

168

Gas lift systems make ideal offshore workers  

SciTech Connect

With a low initial installation cost and small footprint, gas lift systems are well suited for offshore installations where compressed gas is usually already available. These systems are used on multiple and slimhole completions and handle sandy conditions well. They are also used to kick off wells that will flow naturally once the heavier completion fluids leave the production string. Gas lift itself is a mature workaday technology. Measurement and control of gas flow is an area of intense development in gas lift technology. One new control method involves production of multiple completions through a single wellbore. Typically, gas lift valves are opened and closed through tubing pressure. But downhole measurement technology does not yet yield information good enough for stable gas lift control of multiple completions. Gas lift is proving to be a useful AL technique in conjunction with electric submersible pumps (ESP). Located above the ESP pump, the gas lift can reduce the head and allow greater flow. This is helpful when small casing restricts the size of the downhole ESP pump. Wells can usually be produced by the gas lift alone in case of ESP failure, or by replacing the ESP where schedules, high repair costs or low prices rule out repair.

NONE

1999-05-01

169

Activity Based Physics Alternative Homework Assignments  

NSDL National Science Digital Library

This resource is a collection of introductory physics homework assignments developed as an alternative to traditional textbook exercises. These assignments were designed for use with the Activity-Based Physics instructional method (ABP). Students use observational skills and mathematical modeling, combined with basic physics, to solve problems related to a single situation, such as riding a bicycle or tailgating while driving. Each assignment integrates a variety of concepts and requires students to establish cause and effect relationships. Assignments are available in the following subject categories: mechanics, electricity and magnetism, and waves.

Vick, K.; Redish, Edward F.; Cooney, Patrick

2008-11-21

170

Department of Energy Awards $43 Million to Spur Offshore Wind Energy, Wind Program Newsletter, September 2011 Edition (Brochure)  

SciTech Connect

EERE Wind Program Quarterly Newsletter - September 2011. In September, the U.S. Department of Energy announced that it will award $43 million over the next five years to 41 projects across 20 states to speed technical innovations, lower costs, and shorten the timeline for deploying offshore wind energy systems. The projects will advance wind turbine design tools and hardware, improve information about U.S. offshore wind resources, and accelerate the deployment of offshore wind by reducing market barriers such as supply chain development, transmission and infrastructure. The projects announced in September focus on approaches to advancing offshore technology and removing market barriers to responsible offshore wind energy deployment. Funding is subject to Congressional appropriations.

Not Available

2011-09-01

171

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...Requirements; Inspected Vessels § 15.520 Mobile offshore drilling units. (a) The requirements in this section for mobile offshore drilling units (MODUs)...

2010-10-01

172

75 FR 47311 - National Offshore Safety Advisory Committee  

Federal Register 2010, 2011, 2012, 2013

...affecting the oil and gas offshore industry. This meeting will...other concerns affecting the offshore oil and gas industry and assists...and possible action on the Offshore Supply Vessels (OSV's...2010. Written material for distribution to Committee members...

2010-08-05

173

Domestic Options to Offshore Oil and Gas.  

ERIC Educational Resources Information Center

The continuing controversey over offshore oil/gas has given impetus to searching for domestic energy alternatives. The need for and types of several alternative sources are discussed. Indicates that the United States needs to pursue both offshore and other domestic liquid-fuel sources if it is to avoid becoming increasingly dependent on imports.…

Kash, Don E.

1983-01-01

174

Offshore Wind Turbines: Some Technical Challenges  

E-print Network

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

Houlsby, Guy T.

175

Expanders do payouts offshore North Sea  

Microsoft Academic Search

Rich associated gas may be beneficially processed offshore, to yield high value condensate to be spiked into the crude, whilst still producing gas with an acceptable nett calorific value. Actual turbo expander operating experience on the Occidental Piper North Sea Platform has demonstrated that expanders are reliable offshore. This paper, describes both the process and mechanical aspects that affect the

J. Barnwell; W. Wong

1984-01-01

176

An Examination of the Effects of Offshore and Outsourced Development on the Delegation of Responsibilities to Software Components  

Microsoft Academic Search

Offshore and outsourced development are the latest facts of life of professional software building. The easily identifiable\\u000a advantages of these trends – such as cost benefits, continuous delivery and support – have already been explored to considerable\\u000a extent. But how does offshore and outsourced development affect the delegation of responsibilities to components of a software\\u000a system? In this paper we

Subhajit Dattaand; Robert A. Van Engelen

2008-01-01

177

Benefits of VTOL aircraft in offshore petroleum logistics support  

NASA Technical Reports Server (NTRS)

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.

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

1975-01-01

178

Case history of drillstem failures offshore West Africa  

SciTech Connect

This paper reports that a high incidence of drillstem (or drillstring) failures was experienced by Conoco Inc. during drilling of exploration wells offshore West Africa. A data base of failure information was used to identify quickly where the majority of the problems occurred. Almost all failures were related to fatigue and corrosion. A study resulted in several recommendations that included improved practices in drill stem selection, quality assurance, and corrosion control. After the recommendations were implemented, a significant reduction in failures was recorded. This increased operating efficiency, reduced drilling costs, and improved safety.

Sweet, R.G. (Conoco U.K. Ltd. (GB))

1992-03-01

179

Immigrant managers as boundary spanners on offshored software development projects: partners or bosses?  

Microsoft Academic Search

A growing trend to source complex software development projects to lower-cost (offshore) locations has created a need for effective collaboration across cultural boundaries. One way of addressing this need in practice has been to nominate onshore immigrants to manage projects being sourced to the immigrant's country of origin. The assumption is that these managers will enable effective collaboration by drawing

Natalia Levina; Aimee A. Kane

2009-01-01

180

A review of the economics of offshore wind farms Rebecca J. Barthelmie  

Microsoft Academic Search

This paper describes the economic s of of fshore wind energy in the transition from prototy pe offshore wind farm s, developed and installed during the 1990' s, to the comm ercial wind farm s that are currently being installed. Since 1990, 96 MW of of fshore wind have been installed in E urope and the costs of electricity produced

Sara Pryor

181

A FRESH LOOK AT OFFSHORE WIND OPPORTUNITIES IN MASSACHUSETTS Anthony L. Rogers, Ph.D.  

E-print Network

. The offshore regions contain relatively large areas suitable for ocean floor mounted wind turbines, as well in the late 1980s the Europeans starting considering ocean floor mounted wind turbines in shallower waters projects are supplying energy at costs of about 7.5 cents/ kWh. There are plans to install 40 MW of wind

Massachusetts at Amherst, University of

182

Fires and Flotillas: Opposition to Offshore Oil Exploration in New Zealand  

Microsoft Academic Search

The growing cost of oil, driven by rising demand and instability in major oil-producing states, has encouraged the development of domestic sources. This article examines a campaign against offshore oil exploration in New Zealand, which brought together indigenous and environmental activists. It identifies the main actors and the character of the resistance, placing it within the broader context of environmentally

Thomas OBrien

2012-01-01

183

World Energy Congress, Sydney, Australia September 5-9, 2004 OFFSHORE WIND POWER: EASING A RENEWABLE  

E-print Network

19 th World Energy Congress, Sydney, Australia September 5-9, 2004 1 OFFSHORE WIND POWER: EASING to an investment of approximately 40 billion . The global wind energy installed capacity has increased exponentially over a 25-year period and in the process the cost of energy from wind power plants has been

184

NAIS: Nuclear activation-based imaging spectroscopy  

SciTech Connect

In recent years, the development of high power laser systems led to focussed intensities of more than 10{sup 22} W/cm{sup 2} at high pulse energies. Furthermore, both, the advanced high power lasers and the development of sophisticated laser particle acceleration mechanisms facilitate the generation of high energetic particle beams at high fluxes. The challenge of imaging detector systems is to acquire the properties of the high flux beam spatially and spectrally resolved. The limitations of most detector systems are saturation effects. These conventional detectors are based on scintillators, semiconductors, or radiation sensitive films. We present a nuclear activation-based imaging spectroscopy method, which is called NAIS, for the characterization of laser accelerated proton beams. The offline detector system is a combination of stacked metal foils and imaging plates (IP). After the irradiation of the stacked foils they become activated by nuclear reactions, emitting gamma decay radiation. In the next step, an autoradiography of the activated foils using IPs and an analysis routine lead to a spectrally and spatially resolved beam profile. In addition, we present an absolute calibration method for IPs.

Günther, M. M.; Britz, A.; Harres, K.; Hoffmeister, G.; Nürnberg, F.; Otten, A.; Pelka, A.; Roth, M. [Institut für Kernphysik, Schlossgartenstr. 9, Technische Universität Darmstadt, D-64289 Darmstadt (Germany)] [Institut für Kernphysik, Schlossgartenstr. 9, Technische Universität Darmstadt, D-64289 Darmstadt (Germany); Clarke, R. J. [Central Laser Facility, Rutherford Appelton Laboratory, Chilton, Didcot, Oxon OX11 0QX (United Kingdom)] [Central Laser Facility, Rutherford Appelton Laboratory, Chilton, Didcot, Oxon OX11 0QX (United Kingdom); Vogt, K. [GSI – Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt (Germany)] [GSI – Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt (Germany)

2013-07-15

185

NAIS: Nuclear activation-based imaging spectroscopy  

NASA Astrophysics Data System (ADS)

In recent years, the development of high power laser systems led to focussed intensities of more than 1022 W/cm2 at high pulse energies. Furthermore, both, the advanced high power lasers and the development of sophisticated laser particle acceleration mechanisms facilitate the generation of high energetic particle beams at high fluxes. The challenge of imaging detector systems is to acquire the properties of the high flux beam spatially and spectrally resolved. The limitations of most detector systems are saturation effects. These conventional detectors are based on scintillators, semiconductors, or radiation sensitive films. We present a nuclear activation-based imaging spectroscopy method, which is called NAIS, for the characterization of laser accelerated proton beams. The offline detector system is a combination of stacked metal foils and imaging plates (IP). After the irradiation of the stacked foils they become activated by nuclear reactions, emitting gamma decay radiation. In the next step, an autoradiography of the activated foils using IPs and an analysis routine lead to a spectrally and spatially resolved beam profile. In addition, we present an absolute calibration method for IPs.

Günther, M. M.; Britz, A.; Clarke, R. J.; Harres, K.; Hoffmeister, G.; Nürnberg, F.; Otten, A.; Pelka, A.; Roth, M.; Vogt, K.

2013-07-01

186

Current and future offshore activities in Canada  

SciTech Connect

The development of innovative exploratory drilling systems for Canada's harsh Arctic offshore areas over the past decade and future activity in these areas, including possible production concepts, are discussed. The results can be applied in other Arctic areas of the world, including offshore Alaska. This operating experience will advance technology and serve as a basis for the design of Arctic offshore production and transportation systems. Unique technology has been developed and successfully used in the discovery of major accumulations of hyrodcarbons. Continued technological advances are anticipated to have widespread Arctic applications in both exploratory and production operations.

Hnatiuk, J.

1987-06-01

187

Quantifying the hurricane risk to offshore wind turbines  

E-print Network

Quantifying the hurricane risk to offshore wind turbines Stephen Rosea , Paulina Jaramilloa,1 GW will be required from shallow offshore turbines. Hurricanes are a potential risk to these turbines be destroyed by hurricanes in an offshore wind farm. We apply this model to estimate the risk to offshore wind

Jaramillo, Paulina

188

Hydroacoustic Monitoring of Fish Communities in Offshore Wind Farms  

E-print Network

#12;Hydroacoustic Monitoring of Fish Communities in Offshore Wind Farms Annual Report 2004 Horns .......................................................................................................................... 22 #12;Hydroacoustic monitoring of fish communities in offshore wind farms Page I Horns Rev Offshore Rev Offshore Wind Farm Published: May 2005 Prepared by: Christian B. Hvidt Lars Brünner Frank Reier

189

Offshoring: General Equilibrium Effects on Wages, Production and Trade  

Microsoft Academic Search

A simple model of offshoring, which depicts offshoring as ?shadow migration,? permits straightforward derivation of necessary and sufficient conditions for the effects on wages, prices, production and trade. We show that offshoring requires modification of the four classic international trade theorems, so econometricians who ignore offshoring might reject the Heckscher-Ohlin theorem when a properly specified version held in the data.

Richard E. Baldwin; Frédéric Robert-Nicoud

2007-01-01

190

Offshore medicine: Medical care of employees in the offshore oil industry  

SciTech Connect

This book is specifically designed to help the doctor who has to provide medical care for the expanding offshore oil industry. It describes the pattern of work offshore and the medical problems which it generates. The special features of offshore medical care are described along with the training of medics, the design of hospital facilities, and the provision of back-up services to cope with them. These are special chapters on diving, hygiene, and catering, dentistry, and legal aspects.

Cox, R.A.F.

1987-01-01

191

31 CFR 585.408 - Offshore transactions.  

Code of Federal Regulations, 2010 CFR

...THE TREASURY FEDERAL REPUBLIC OF YUGOSLAVIA (SERBIA AND MONTENEGRO) AND BOSNIAN SERB-CONTROLLED AREAS OF THE REPUBLIC OF BOSNIA AND HERZEGOVINA SANCTIONS REGULATIONS Interpretations § 585.408 Offshore transactions. (a) The...

2010-07-01

192

Future characteristics of Offshore Support Vessels  

E-print Network

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 ...

Rose, Robin Sebastian Koske

2011-01-01

193

31 CFR 588.406 - Offshore transactions.  

Code of Federal Regulations, 2013 CFR

... Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY WESTERN BALKANS STABILIZATION REGULATIONS Interpretations § 588.406 Offshore transactions. The prohibitions in §...

2013-07-01

194

31 CFR 588.406 - Offshore transactions.  

... Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY WESTERN BALKANS STABILIZATION REGULATIONS Interpretations § 588.406 Offshore transactions. The prohibitions in §...

2014-07-01

195

31 CFR 547.406 - Offshore transactions.  

Code of Federal Regulations, 2013 CFR

...Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY DEMOCRATIC REPUBLIC OF THE CONGO SANCTIONS REGULATIONS Interpretations § 547.406 Offshore transactions. The...

2013-07-01

196

31 CFR 547.406 - Offshore transactions.  

Code of Federal Regulations, 2011 CFR

...Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY DEMOCRATIC REPUBLIC OF THE CONGO SANCTIONS REGULATIONS Interpretations § 547.406 Offshore transactions. The...

2011-07-01

197

31 CFR 547.406 - Offshore transactions.  

Code of Federal Regulations, 2012 CFR

...Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY DEMOCRATIC REPUBLIC OF THE CONGO SANCTIONS REGULATIONS Interpretations § 547.406 Offshore transactions. The...

2012-07-01

198

31 CFR 547.406 - Offshore transactions.  

...Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY DEMOCRATIC REPUBLIC OF THE CONGO SANCTIONS REGULATIONS Interpretations § 547.406 Offshore transactions. The...

2014-07-01

199

31 CFR 547.406 - Offshore transactions.  

Code of Federal Regulations, 2010 CFR

...Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY DEMOCRATIC REPUBLIC OF THE CONGO SANCTIONS REGULATIONS Interpretations § 547.406 Offshore transactions. The...

2010-07-01

200

System architecture of offshore oil production systems  

E-print Network

This thesis presents an approach to applying Systems Architecture methods to the development of large, complex, commercial systems, particularly offshore oil and gas productions systems. The aim of this research was to ...

Keller, James (James Thomas)

2008-01-01

201

Expanders do payouts offshore North Sea  

SciTech Connect

Rich associated gas may be beneficially processed offshore, to yield high value condensate to be spiked into the crude, whilst still producing gas with an acceptable nett calorific value. Actual turbo expander operating experience on the Occidental Piper North Sea Platform has demonstrated that expanders are reliable offshore. This paper, describes both the process and mechanical aspects that affect the choice of an expander system for an offshore application. For a given typical rich associated gas, three process options are compared, Joule-Thompson expansion, external refrigeration and a turbo expander system. The process study illustrates that a turbo expander system is comparable for the offshore situation with the other two options. The paper also describes the mechanical features that should be incorporated into the specification of an expander for use on a platform topsides.

Barnwell, J.; Wong, W.

1984-02-01

202

Outsourcing, offshoring and the US office market  

E-print Network

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 ...

Topolewski, Tanya M., 1969-

2004-01-01

203

Offshore Oil in the Alaskan Arctic  

Microsoft Academic Search

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 occur offshore beneath the shallow, ice-covered seas of the Alaskan continental shelf. Offshore recovery operations for such areas are

G. Weller

1984-01-01

204

Grid Integration of Offshore Wind Farms  

Microsoft Academic Search

\\u000a Offshore wind farms tend to become bigger and far from the onshore point of connection. The developers and the system operators\\u000a are facing a number of technical, economical, and environmental challenges in transmitting the bulk power developed at these\\u000a offshore wind farms over long distances. In this Chapter, some of these issues are discussed, giving emphasis to the basic\\u000a system

Lie Xu

205

Corrosion control survey methods for offshore pipelines  

SciTech Connect

Construction, operation, and maintenance of offshore pipelines and other facilities are expensive. The consequences of an offshore corrosion failure can be devastating. For these reasons, cathodic protection (CP) has become a universally applied technique for mitigating corrosion. Marine pipelines are typically provided with CP by bracelet anodes of zinc or aluminum. Impressed current systems at platforms or onshore are also used as well as hybrid systems that use a combination of the two. In this paper survey techniques are described and evaluated.

Weldon, C.P.; Kroon, D. (Corrpro Co. Inc., North, Spring, TX (US))

1992-02-01

206

Offshoring, immigration, and the native wage distribution  

Microsoft Academic Search

This paper presents a simple model that examines the impact of offshoring and immigration on wages and tests these predictions using U.S. state-industry-year panel data. According to the model, the productivity effect causes offshoring to have a more positive impact on low-skilled wages than immigration, but this gap decreases with the workers' skill level. The empirical results confirm both of

William W. Olney

2012-01-01

207

Arctic and offshore research. Technology status report  

SciTech Connect

DOE's Morgantown Energy Technology Center (METC) and the DOE Fossil Energy Office of Oil, Gas, and Shale Technology are performing the following activities in Arctic and Offshore Research (AOR): (1) AOR Energy-Related Technology Data Base Development; (2) AOR seminars and workshops; (3) Arctic and Offshore Energy Research Coordination; (4) Arctic and Offshore Research which includes analysis of ice island generation, and prediction of drift paths; field and laboratory determination of (1) the engineering properties of multiyear ice, and (2) the interaction of multiyear ice with offshore structures; analysis of ice gouging in deep water (150 to 210 feet) in the Arctic Ocean, and numerical simulation modeling of the gouging process; analysis of the location and origin of the ice-ridging shear zone; analysis of sea-ice thickness using airborne radar sensing techniques; improvement of permafrost detection techniques, and analysis of permafrost characteristics; investigation of the effects of ice accretion and corrosion on offshore structures; measurements of seismic acceleration and velocity for analyzing vibration in and stability of off-shore structures; detection of oil spills that occur below the Arctic ice pack; analysis of the effects of frost heave and corrosion on pipelines; (5) Advanced Recovery Technologies; and (6) Subice Systems Development. Current activities include determining the Arctic bibliographic data base and initiating most of the research described above (except multiyear ice properties, pipeline research, and subice systems development). 10 refs., 15 figs., 3 tabs.

Not Available

1985-10-01

208

Elements of Designing for Cost  

NASA Technical Reports Server (NTRS)

During recent history in the United States, government systems development has been performance driven. As a result, systems within a class have experienced exponentially increasing cost over time in fixed year dollars. Moreover, little emphasis has been placed on reducing cost. This paper defines designing for cost and presents several tools which, if used in the engineering process, offer the promise of reducing cost. Although other potential tools exist for designing for cost, this paper focuses on rules of thumb, quality function deployment, Taguchi methods, concurrent engineering, and activity based costing. Each of these tools has been demonstrated to reduce cost if used within the engineering process.

Dean, Edwin B.; Unal, Resit

1992-01-01

209

Activity-based differentiation of pathologists' workload in surgical pathology.  

PubMed

Adequate budget control in pathology practice requires accurate allocation of resources. Any changes in types and numbers of specimens handled or protocols used will directly affect the pathologists' workload and consequently the allocation of resources. The aim of the present study was to develop a model for measuring the pathologists' workload that can take into account the changes mentioned above. The diagnostic process was analyzed and broken up into separate activities. The time needed to perform these activities was measured. Based on linear regression analysis, for each activity, the time needed was calculated as a function of the number of slides or blocks involved. The total pathologists' time required for a range of specimens was calculated based on standard protocols and validated by comparing to actually measured workload. Cutting up, microscopic procedures and dictating turned out to be highly correlated to number of blocks and/or slides per specimen. Calculated workload per type of specimen was significantly correlated to the actually measured workload. Modeling pathologists' workload based on formulas that calculate workload per type of specimen as a function of the number of blocks and slides provides a basis for a comprehensive, yet flexible, activity-based costing system for pathology. PMID:19399515

Meijer, G A; Oudejans, J J; Koevoets, J J M; Meijer, C J L M

2009-06-01

210

78 FR 43003 - Proposed Collection; Comment Request on Information Collection Tools Relating to the Offshore...  

Federal Register 2010, 2011, 2012, 2013

...Relating to the Offshore Voluntary Disclosure Program (OVDP) AGENCY...comments concerning the Offshore Voluntary Disclosure Program (OVDP). DATES...requirements: Title: Offshore Voluntary Disclosure Program (OVDP). OMB...

2013-07-18

211

Avoidable waste management costs  

SciTech Connect

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.

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

1995-01-01

212

Concerted Action for Offshore Wind Energy Deployment (COD): Grid Integration of Offshore Wind Farms  

Microsoft Academic Search

The objective of the European Concerted Action on Offshore Wind Energy Deployment (COD) is to speed up the responsible deployment of offshore wind energy in the EU by early identification and possibly to remove not explicitly technical barriers: legal, administrative, policy, environmental and grid infrastructure planning issues. The COD is carried out by eight sea- bordering member states, represented by

Achim Woyte; Helen Snodin; Paul Gardner; Ruud de Bruijne

213

How Much? Cost Models for Online Education.  

ERIC Educational Resources Information Center

Reviews some of the research being done in the area of cost models for online education. Describes a cost analysis handbook; an activity-based costing model that was based on an economic model for traditional instruction at the Indiana University Purdue University Indianapolis; and blending other costing models. (LRW)

Lorenzo, George

2001-01-01

214

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

SciTech Connect

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.

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

2012-12-01

215

Using airborne and satellite SAR for wake mapping offshore  

NASA Astrophysics Data System (ADS)

Offshore wind energy is progressing rapidly around Europe. One of the latest initiatives is the installation of multiple wind farms in clusters to share cables and maintenance costs and to fully exploit premium wind resource sites. For siting of multiple nearby wind farms, the wind turbine wake effect must be considered. Synthetic aperture radar (SAR) is an imaging remote sensing technique which offers a unique opportunity to describe spatial variations of wind speed offshore. For the first time an airborne SAR instrument was used for data acquisition over a large offshore wind farm. The aim was to identify the turbine wake effect from SAR-derived wind speed maps as a downstream region of reduced wind speed. The aircraft SAR campaign was conducted on 12 October 2003 over the wind farm at Horns Rev in the North Sea. Nearly simultaneous measurements were acquired over the area by the SAR on board the ERS-2 satellite. In addition, meteorological data were collected. Both aircraft and satellite SAR-derived wind speed maps showed significant velocity deficits downstream of the wind farm. Wind speed maps retrieved from aircraft SAR suggested deficits of up to 20% downstream of the last turbine, whereas satellite SAR-derived maps showed deficits of the order of 10%. The difference originated partly from the two different reference methods used for normalization of measured wind speeds. The detected region of reduced wind speed had the same width as the wind turbine array, indicating a low degree of horizontal wake dispersion. The downstream wake extent was approximately 10 km, which corresponds well with results from previous studies and with wake model predictions. Copyright

Christiansen, Merete B.; Hasager, Charlotte B.

2006-09-01

216

An evaluation of activity-based travel analysis  

Microsoft Academic Search

This paper is a review and assessment of the contributions made by “activity-based approaches” to the understanding and forecasting of travel behavior. In their brief history of approximately a decade, activity-based analyses have received extensive interest. This work has led to an accumulation of empirical evidence and new insights and has made substantial contributions toward the better understanding of travel

Ryuichi Kitamura

1988-01-01

217

Offshore oil gas trends in ROVs tooling  

SciTech Connect

The ROVs that operate in today's offshore environment bear little or no resemblance to those which first began supporting the oil and gas work requirements less than 15 years ago. In that short span of time, an explosion of subsea technology has occurred, rendering older equipment obsolete and expanding subsea remote intervention capabilities beyond the horizon of intervention tasks originally envisioned. Today's offshore work ROVs employ the latest in robotics, fiver optics, acoustics, video, and computer technologies, and routinely achieve better than 90 percent operational availability. Leading offshore ROV operations companies have demonstrated less than 1 percent down-time over thousands of hours of operation. As the offshore oil and gas market evolves, the ever-expanding capabilities of the work ROV plays a major role in shaping the operational concepts employed in subsea oil and gas field exploration, development, and production. This paper explores the capabilities of available ROV systems in use offshore today, the economic trends driving ROV technology development, and the new trends in the employment of ROVs and their associated sensors and tooling systems.

Jacobson, J.R. (Perry Tritech Inc., Jupiter, FL (United States))

1994-04-01

218

Extensive English Summary CPB Special Publication 57: Wind energy at the North Sea: A social Cost-benefit analysis  

E-print Network

1 Extensive English Summary CPB Special Publication 57: Wind energy at the North Sea: A social Cost 2004, in which they requested a breakdown of the costs and benefits of 6,000 MW of offshore wind energy sensitivity analyses were carried out: 1. 6,000 MW offshore wind energy, ready in 2020 2. Equivalent

219

10 CFR 150.7 - Persons in offshore waters not exempt.  

...2014-01-01 false Persons in offshore waters not exempt. 150.7 Section 150...IN AGREEMENT STATES AND IN OFFSHORE WATERS UNDER SECTION 274 Continued Commission Regulatory Authority in Offshore Waters § 150.7 Persons in offshore...

2014-01-01

220

Comparative management of offshore posidonia residues: composting vs. energy recovery.  

PubMed

Residues of the marine plant posidonia (Posidonia oceanica, PO) beached in tourist zones represent a great environmental, economical, social and hygienic problem in the Mediterranean Basin, in general, and in the Apulia Region in particular, because of the great disturb to the bathers and population, and the high costs that the administrations have to bear for their removal and disposal. In the present paper, Authors determined the heating values of leaves and fibres of PO, the main offshore residues found on beaches, and, meantime, composted those residues with mowing and olive pruning wood. The final composts were characterized for pH, electrical conductivity, elemental composition, dynamic respiration index, phytotoxicity, fluorescence and infrared spectroscopic fingerprints. The aim of the paper was to investigate the composting and energy recovery of PO leaves and fibres in order to suggest alternative solutions to the landfill when offshore residues have to be removed from recreational beaches. The fibrous portion of PO residues showed heating values close to those of other biofuels, thus suggesting a possible utilization as source of energy. At the same time, compost obtained from both PO wastes showed high quality features on condition that the electrical conductivity and Na content are lowered by a correct management of wetting during the composting. PMID:20888211

Cocozza, Claudio; Parente, Angelo; Zaccone, Claudio; Mininni, Carlo; Santamaria, Pietro; Miano, Teodoro

2011-01-01

221

Current and future offshore activities in Canada  

SciTech Connect

The development of innovative exploratory drilling systems for Canada's harsh Arctic offshore areas over the past decade is described. Future activity in these areas, including possible production concepts, is also discussed. The results of the experience in Canadian waters can be applied in other Arctic areas of the world including offshore Alaska. This operating experience will serve to further advance the drilling technology and will serve as a basis for the design of Arctic offshore production and transportation systems. Artificial islands, first commenced in 1972, are still being constructed but with improved designs and equipment. A step forward has been the use of subsea berms on which concrete or steel segmented caissons have been placed. Integrated-type steel caissons have also been adapted for placement on subsea berms, one of which is half of a crude oil tanker and a second, a purpose-built steel caisson to be placed this summer.

Hnatiuk, J.

1984-05-01

222

Investigation on installation of offshore wind turbines  

NASA Astrophysics Data System (ADS)

Wind power has made rapid progress and should gain significance as an energy resource, given growing interest in renewable energy and clean energy. Offshore wind energy resources have attracted significant attention, as, compared with land-based wind energy resources, offshore wind energy resources are more promising candidates for development. Sea winds are generally stronger and more reliable and with improvements in technology, the sea has become a hot spot for new designs and installation methods for wind turbines. In the present paper, based on experience building offshore wind farms, recommended foundation styles have been examined. Furthermore, wave effects have been investigated. The split installation and overall installation have been illustrated. Methods appropriate when installing a small number of turbines as well as those useful when installing large numbers of turbines were analyzed. This investigation of installation methods for wind turbines should provide practical technical guidance for their installation.

Wang, Wei; Bai, Yong

2010-06-01

223

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

SciTech Connect

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.

Francois, D.K.

1994-12-31

224

Improving offshore communication by choosing the right coordination  

E-print Network

, organizational, and stakeholder distances influence negatively the communication and knowledge exchangeImproving offshore communication by choosing the right coordination strategy Matthias Fabriek;Improving offshore communication by choosing the right coordination strategy Page 2 of 92 ABSTRACT

Utrecht, Universiteit

225

FEED-IN TARIFFS AND OFFSHORE WIND POWER DEVELOPMENT  

E-print Network

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

Firestone, Jeremy

226

75 FR 30845 - National Offshore Safety Advisory Committee  

Federal Register 2010, 2011, 2012, 2013

...Guard [USCG-2010-0453] National Offshore Safety Advisory Committee AGENCY: Coast...teleconference meeting of the National Offshore Safety Advisory Committee (NOSAC) to...June 17, 2010. Written material for distribution to Committee members should reach...

2010-06-02

227

Activity-based financing of health care--experiences from Sweden.  

PubMed

The market-inspired control models that go under the name of New Public Management (NPM) are no longer being debated in the arena of public health care as they once were, although there are still very clear signs of NPM in many countries. One manifestation of NPM in health care is activity-based financing. The first purpose of this paper is to describe what impacts activity-based financing has had in Sweden's public health service. The second purpose is to explain why the application of the payment model has been gradually changed. The basis for the paper comprises research done on activity-based financing. The review of the development within Swedish health care regarding activity-based financing shows that effects appear. But it also becomes evident that the models often are adjusted and that the adjustments, for example the introduction of a production ceiling, changes the effects. The fundamental dilemma appears to be finding a balance between production efficiency and total cost control. PMID:17385331

Kastberg, Gustaf; Siverbo, Sven

2007-01-01

228

Offshore wind energy systems for the U.K  

Microsoft Academic Search

Some of the more important factors affecting the design of offshore wind energy systems are discussed. It is shown that power densities in offshore winds are attractively high, of the order of 300 kW\\/linear meter (perpendicular to the wind direction). The economics of offshore operation strongly favors the use of large wind turbines (about 100 m diameter) and a low

P. J. Musgrove

1979-01-01

229

Method and apparatus for positioning an offshore platform jacket  

Microsoft Academic Search

A method is described of positioning an offshore platform jacket comprising the steps of: loading and securing the platform jacket onto a tension leg barge; towing the tension leg barge to a predetermined offshore location; laying anchors on the floor of the ocean at the predetermined offshore location; attaching lines between the anchors and the tension leg barge to position

Oksuzler

1987-01-01

230

POWER - A METHODOLOGY FOR PREDICTING OFFSHORE WIND ENERGY RESOURCES  

Microsoft Academic Search

An accurate estimate of the long-term wind speed is essential to site an offshore wind farm effectively. Unfortunately measured wind speed data at potential offshore wind farm sites are currently sparse. A major European Commission funded project called 'Predicting Offshore Wind Energy Resources\\

G M Watson; J A Halliday; J P Palutikof; T Holt; R J Barthelmie; J P Coelingh; L Folkerts; G F M Wiegerinck; E J van Zuylen; J W Cleijne; G C S Hommel

231

Offshore Series Wind Turbine Variable Hub heights & rotor diameters  

E-print Network

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

Firestone, Jeremy

232

ForPeerReview PUBLIC ACCEPTANCE OF OFFSHORE WIND POWER  

E-print Network

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

Firestone, Jeremy

233

Are offshore power plants realistic. [Alternative to nuclear power plants  

Microsoft Academic Search

Offshore fossil-fueled electric power plants offer a positive alternative to nuclear proliferation, a viable technology for providing electricity to coastal cities. Such plants combine new technology from the offshore oil industry with efficient power generation techniques, are cheaper than nuclear plants, and could burn coal or solid waste or a mixture of both. Offshore power plants could utilize ocean water

Adler

1976-01-01

234

Evolution and Reduction of Scour around Offshore Wind Turbines  

Microsoft Academic Search

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

David McGovern; Suzana Ilic

2010-01-01

235

76 FR 3919 - National Offshore Safety Advisory Committee  

Federal Register 2010, 2011, 2012, 2013

...affecting the oil and gas offshore industry. The purpose of...other concerns affecting the offshore oil and gas industry and assists...recommendations for standards for Offshore Supply Vessels with an International...2011. Written material for distribution to Committee members...

2011-01-21

236

75 FR 80064 - National Offshore Safety Advisory Committee  

Federal Register 2010, 2011, 2012, 2013

...affecting the oil and gas offshore industry. The purpose of...other concerns affecting the offshore oil and gas industry and assists...recommendations for standards for Offshore Supply Vessels with a gross...2011. Written material for distribution to Committee members...

2010-12-21

237

Offshore Aquaculture: The Frontier of Redefining Oceanic Property  

Microsoft Academic Search

Over the past decade, offshore aquaculture has gained significant momentum as a global and, in particular, a U.S. seafood development strategy. Issues surrounding property rights, environmental impacts, and the social desirability of offshore aquaculture are inadequately addressed by policymakers and aquaculture specialists. This review essay describes offshore aquaculture's place in the development of industrial fish farming and the policy issues

Michael Skladany; Rebecca Clausen; Ben Belton

2007-01-01

238

Russia's Rosshelf sets timetable for arctic offshore field development  

SciTech Connect

Russia's ambitious new petroleum firm Rosshelf has disclosed a proposed timetable for developing two offshore arctic fields. The upstart domestic joint stock company, formed only last year, also has indicated that its interest in tapping resources on Russia's northern shelves extends far beyond the pair of arctic fields currently earmarked for development: the Barents Sea's super-giant Shtokmanovskoye gas/condensate reservoir and the Pechora Sea's much smaller Prirazlomnoye oil field for which it has been granted development rights. Rosshelf officials said Shtokmanovskoye should be on production by 2000 if development begins by the end of 1993. Meanwhile, Rosshelf has set a target date of 1997 to start production from Prirazlomnoye oil field in the Pechora Sea, a southeast arm of the Barents Sea. The paper describes future targets, Rosshelf victory over its competitor, cost and financing, and expected yields from the Shtokmanovskoye and Prirazlomnoye fields.

Not Available

1993-02-22

239

Highwave off-shore energy hose  

Microsoft Academic Search

Many inshore wave energy collectors (WEC) concepts use wave energy to push water ashore to process it for energy conversion with turbines. An artificial reef design of floating HPDE pipe can be built in a harbor and installed offshore of the breaking waves in the near shore. The portable reef designed to mitigate shore erosion can serve as the shuttle

Gary Ross; A. Michael Weaver; Chris O'Connor

2011-01-01

240

Offshore Wind Power Farm Environmental Impact Assessment  

E-print Network

Horns Rev Offshore Wind Power Farm Environmental Impact Assessment on Water Quality #12;Prepared Design ApS 04.05.2000 #12;Bio/consult Side 3 Horns Rev. Environmental Impact Assessment. Water Quality ................................................................................................................................. 12 4.2. WATER QUALITY

241

Risk analysis for Arctic offshore operations  

SciTech Connect

Offshore exploration for hydrocarbons is being conducted in the near-shore regions of the Beaufort Sea. This activity is expected to be intensified and expanded into the deeper portions of the Beaufort, as well as into the Chukchi Sea. The ice conditions in the Beaufort Sea are very variable, particularly in the deeper water regions. This variability greatly influences the probability of success or failure of an offshore operation. For example, a summer exploratory program conducted from a floating drilling unit may require a period of 60 to 100 days on station. The success of such a program depends on: (a) the time when the winter ice conditions deteriorate sufficiently for the drilling unit to move on station; (b) the number of summer invasions by the arctic ice pack, forcing the drilling unit to abandon station; (c) the rate at which first-year ice grows to the ice thickness limit of the supporting icebreakers; and (d) the extent of arctic pack expansion during the fall and early winter. In general, the ice conditions are so variable that, even with good planning, the change of failure of an offshore operation will not be negligible. Contingency planning for such events is therefore necessary. This paper presents a risk analysis procedure which can greatly benefit the planning of an offshore operation. A floating drilling program and a towing and installation operation for a fixed structure are considered to illustrate the procedure.

Slomski, S.; Vivatrat, V.

1986-04-01

242

Barge hull for offshore drilling rigs  

Microsoft Academic Search

An improved barge hull for offshore drilling rigs is disclosed. The invention comprises a channel in the bottom of a barge hull extending from the bottom of said barge hull to the back of said barge hull for directing the flow of water under said barge hull to the back of said barge hull in order to disrupt the relative

1984-01-01

243

Large enigmatic crater structures offshore southern California  

Microsoft Academic Search

Digital mosaics of swath and conventional bathymetry data reveal large, distinct near-circular crater structures in the Inner Continental Borderland offshore southern California. Two have maximum crater diameters that exceed 30 km and a third has a crater diameter of approximately 12 km. All three features exhibit the morphology of large complex craters (raised outer rim, ring moat and central uplift)

Mark R. Legg; Craig Nicholson; Chris Goldfinger; Randall Milstein; Marc J. Kamerling

2004-01-01

244

Competitive Bidding for Offshore Petroleum Leases  

Microsoft Academic Search

This paper develops a formal model of competitive bidding to analyze some aspects of the federal offshore oil leasing system. The lease sales of interest are often characterized by small numbers of auction participants and by high levels of uncertainty regarding the true values of the leases offered. The model suggests that these circumstances may lead to the capture of

Douglas K. Reece

1978-01-01

245

Offshore oil and gas pipeline technology  

Microsoft Academic Search

This volume is a ''total-systems'' approach to offshore pipeline design, operation, and maintenance. The volume comprises 17 contributed sections reviewing the most important developments in the field over the last few years. The contributors are all internationally recognized experts, and the papers present a broad yet complete review of all aspects of pipeline integrity. Although each topic is treated in

Mare

1985-01-01

246

Wave Models for Offshore Wind Turbines  

Microsoft Academic Search

In the design of wind turbines—onshore or offshore—the prediction of extreme loads as- sociated with a target (long) return period requires statistical extrapolation from available loads data. The data required for such extrapolation are obtained by stochastic time- domain simulation of the inflow turbulence and of the turbine response. Prediction of accurate loads depends on assumptions made in the simulation

Puneet Agarwal; Lance Manuely

2008-01-01

247

Agile methods handling offshore software development issues  

Microsoft Academic Search

Agile methods have emerged as a new set of software development processes and practices, that cater requirements change by delivering the software in multiple small releases, increasing the client confidence and enables him\\/her to communicate the business requirements change at higher pace. On the other hand, technology world is switching to offshore software development rapidly due to global economic reasons.

M. F. Nisar; Tahir Hameed

2004-01-01

248

Offshore wind resource assessment through satellite images  

E-print Network

, Morten Nielsen, Sara Pryor Wind Energy Department European Geosciences Union (EGU) Nice, France, 25 angle Coefficients depend on radar incidence angle and wind speed OCEAN SEA BOTTOM CMOD4 Stoffelen et al1 Slide no. 4 Offshore wind resource assessment through satellite images Charlotte Bay Hasager

249

Arctic offshore oil and gas technology  

SciTech Connect

This technical background briefing report is intended to assist in planning engineering research oriented toward Arctic offshore oil and gas recovery. The current five-year leasing schedule for the ice-prone waters of the Arctic offshore has been illustrated in Figure E-1. In Figure E-2 and Table I, the estimated reserves for these areas are given, based on National Petroleum Council estimates (December 1981). In view of the world petroleum situation since 1973, the probability of successful exploration and production from some areas of the Arctic offshore, at some time in the foreseeable future, is very high. The flow chart in Figure E-3 relates the special Arctic factors, such as ice and permafrost, to the normal petroleum production sequence. Other current technological frontiers are identified in the final section of this report. All of the subjects mentioned there should be advanced, to extract Arctic offshore oil and gas in an optimized and economic manner. Fortunately, the required technology is within reach. With the coordinated efforts of industry and government, and the allocation of sufficient resources in a timely manner, all of these technical advances can be accomplished in the decade ahead. 231 references, 134 figures, 1 table.

Sackinger, W.M.

1982-11-01

250

High-Alloy Materials for Offshore Applications  

Microsoft Academic Search

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,

T. F. Lemke; J. A. Harris

1983-01-01

251

Offshore Investments by Colleges Draw Scrutiny  

ERIC Educational Resources Information Center

Billions of dollars in untaxed, offshore investments by college endowments could be subject to taxation under a proposal being considered by the leaders of the U.S. Senate Finance Committee. The proposed change, which targets hedge funds, a popular investing strategy for many colleges, would affect the largest college endowments, including those…

Fain, Paul; Wolverton, Brad

2007-01-01

252

Sea loads on ships and offshore structures  

Microsoft Academic Search

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

O. M. Faltinsen

1990-01-01

253

Probability distributions for offshore wind speeds  

Microsoft Academic Search

In planning offshore wind farms, short-term wind speeds play a central role in estimating various engineering parameters, such as power output, extreme wind load, and fatigue load. Lacking wind speed time series of sufficient length, the probability distribution of wind speed serves as the primary substitute for data when estimating design parameters. It is common practice to model short-term wind

Eugene C. Morgan; Matthew Lackner; Richard M. Vogel; Laurie G. Baise

2011-01-01

254

Offshore mussel aquaculture: new or just renewed?  

Microsoft Academic Search

The increase on the demand for marine products and the decrease of the wild marine population has led to the culturing of several marine species. Within the molluscs the mussel is the second largest product by volume of marine aquaculture. Mussels are an ideal species for culture in the open ocean, referred to as offshore aquaculture. Several different systems are

T. Lado-Insua; F. J. Ocampo; K. Moran

2009-01-01

255

Mapping Seabird Sensitivity to Offshore Wind Farms  

PubMed Central

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

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

2014-01-01

256

Research misconduct oversight: defining case costs.  

PubMed

This study uses a sequential mixed method study design to define cost elements of research misconduct among faculty at academic medical centers. Using time driven activity based costing, the model estimates a per case cost for 17 cases of research misconduct reported by the Office of Research Integrity for the period of 2000-2005. Per case cost of research misconduct was found to range from $116,160 to $2,192,620. Research misconduct cost drivers are identified. PMID:24551963

Gammon, Elizabeth; Franzini, Luisa

2013-01-01

257

Teaching ABC & Cost Behaviors to Non-Numbers People  

ERIC Educational Resources Information Center

Simply put, a cost analysis studies how you spend your money. Activity based costing models associate costs with services and cost benefit analysis weighs whether or not the costs expended were worth the money given the efforts involved and the results achieved. This study seeks to understand the financial choices and information seeking behaviors…

Taylor, Virginia Anne; Rudnick, Martin

2007-01-01

258

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

PubMed

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

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

2013-01-01

259

Global Services Sourcing: Issues of Cost and Quality  

E-print Network

at Columbia University. He is also Special Advisor to United Nations Secretary General, Kofi Annan. Rohit at competitive costs" is more in line with the strategy that that these companies employed. Next, our in depth drivers of outsourcing were: Cost savings Increasing capacity Ability to take advantage of offshore labor

260

Paraffin deposition in offshore oil production  

E-print Network

PARAFFIN DEPOSITION IN OFFSHORE OIL PRODUCTION A Thesis by G E R A L D M A S O N E L P H I N G S T O N E J R . Submitted to the Office of Graduate Studies of Texas A & M Univers i ty in part ial fulfillment of the requirements for the degree... of M A S T E R O F S C I E N C E May 1995 Major Subject: Chemica l Engineering PARAFFIN DEPOSITION IN OFFSHORE OIL PRODUCTION A Thesis by G E R A L D M A S O N E L P H I N G S T O N E J R . Submitted to Texas A & M University in part ial...

Elphingstone, Gerald Mason

2012-06-07

261

New technology emphasizes international offshore effort  

SciTech Connect

While the offshore industry is focusing its major development efforts on the deeper waters of the US Gulf, West Africa and Brazil, technology has not stood still in the world`s many other established and frontier offshore development areas. These selected items drawn from contributions by UK companies and a major joint-venture development in Eastern Canada emphasize this effort. Included here are: (1) announcement of a major six-field, 3 Tcf gas development off Nova Scotia`s Sable Island and award of two drilling contracts; (2) a comprehensive study of mobile production units in the UK by Smith Rea Energy Analysts; (3) four applications of an option to high-pressure swivels on an FPSO with multiple subsea inlet lines; (4) a contract to supply a DC bus drive for 17 ESPs on Texaco`s Captain field; and (5) review of an environmental study of the Falkland Islands in preparation for exploration activity.

NONE

1997-07-01

262

Perspectives of offshore geothermal energy in Italy  

NASA Astrophysics Data System (ADS)

Italy is the first European and world's fifth largest producer of geothermal energy for power generation which actually accounts for less than 2% of the total electricity production of the country. In this paper after a brief introduction to the basic elements of high-enthalpy geothermal systems, we discuss the potentialities represented by the submarine volcanoes of the South Tyrrhenian Sea. In particular we focus on Marsili Seamount which, according to the literature data, can be considered as a possible first offshore geothermal field; then we give a summary of the related exploitation pilot project that may lead to the realization of a 200MWe prototype power plant. Finally we discuss some economic aspects and the development perspectives of the offshore geothermal resource taking into account the Italian energy framework and Europe 2020 renewable energy target.

Armani, F. B.; Paltrinieri, D.

2013-06-01

263

Stability analysis of offshore wind farm and marine current farm  

NASA Astrophysics Data System (ADS)

Renewable energy has been playing an important role to meet power demand and 'Green Energy' market is getting bigger platform all over the world in the last few years. Due to massive increase in the prices of fossil fuels along with global warming issues, energy harvesting from renewable energy sources has received considerable interest, nowadays, where extensive researches are going on to ensure optimum use of renewable sources. In order to meet the increasing demand of electricity and power, integration of renewable energy is getting highest priorities around the world. Wind is one of the most top growing renewable energy resources and wind power market penetration is expected to reach 3.35 percent by 2013 from its present market of about 240 GW. A wind energy system is the most environmental friendly, cost effective and safe among all renewable energy resources available. Another promising form of renewable energy is ocean energy which covers 70 % of the earth. Ocean energy can be tapped from waves, tides and thermal elements. Offshore Wind farm (OWF) has already become very popular for large scale wind power integration with the onshore grid. Recently, marine current farm (MCF) is also showing good potential to become mainstream energy sources and already successfully commissioned in United Kingdom. However, squirrel cage induction generator (SCIG) has the stability problem similar to synchronous generator especially during fault location to restore the electromagnetic torque. Series dynamic braking resistor (SDBR) has been known as a useful mean to stabilize fixed speed wind generator system. On the other hand, doubly fed induction generator (DFIG) has the capability of coupling the control of active and reactive power and to provide necessary reactive power demand during grid fault conditions. Series dynamic braking resistor (SDBR) can also be employed with DFIG to limit the rotor over current. An integration of wind and tidal energy represents a new-trend for large electric energy production using offshore wind generators and marine current generators, respectively. Thus DFIG based offshore wind farm can be an economic solution to stabilize squirrel cage induction generator based marine current farm without installing any addition FACTS devices. This thesis first focuses on the stabilization of fixed speed IG based marine current farm using SDBR. Also stabilization of DFIG based variable speed wind farm utilizing SDBR is studied in this work. Finally a co-operative control strategy is proposed where DFIG is controlled in such a way that it can even provide necessary reactive power demand of induction generator, so that additional cost of FACTS devices can be avoided. In that way, the DFIGs of the offshore wind farm (OWF) will actively compensate the reactive power demand of adjacent IGs of the marine current farm (MCF) during grid fault. Detailed modeling and control scheme for the proposed system are demonstrated considering some realistic scenarios. The power system small signal stability analysis is also carried out by eigenvalue analysis for marine current generator topology, wind turbine generator topology and integrated topology. The relation between the modes and state variables are discussed in light of modal and sensitivity analyses. The results of theoretical analyses are verified by MATLAB/SIMULINK and laboratory standard power system simulator PSCAD/EMTDC.

Shawon, Mohammad Hasanuzzaman

264

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

E-print Network

the suggested optimization procedure, were really optimized for a given operation. 6 network models were used to develop and test the suggested procedure. Also, the procedure was applied to 2 real construction projects, which are Grade Beam Erection Project...

Son, Junghye

2012-06-07

265

Activity-Based Costing Models for Alternative Modes of Delivering On-Line Courses  

ERIC Educational Resources Information Center

In recent years there has been growth in online distance learning courses. This has been prompted by; new technology such as the Internet, mobile learning, video and audio conferencing: the explosion in student numbers in Higher Education, and the need for outreach to a world wide market. Web-based distance learning is seen as a solution to…

Garbett, Chris

2011-01-01

266

Improved thermoplastic materials for offshore flexible pipes  

SciTech Connect

Long-term aging tests representative of field operating conditions have been conducted on various thermoplastic materials proposed for the inner tube of flexible pipes for offshore drilling and production applications. In particular, experimental data are provided about the changes of the mechanical properties of selected thermoplastic materials owing to optimized formulation when the pipes are exposed over time to crude oil in the presence of gas and water.

Dawans, F.; Jarrin, J.; Hardy, J.

1988-08-01

267

Barge hull for offshore drilling rigs  

SciTech Connect

An improved barge hull for offshore drilling rigs is disclosed. The invention comprises a channel in the bottom of a barge hull extending from the bottom of said barge hull to the back of said barge hull for directing the flow of water under said barge hull to the back of said barge hull in order to disrupt the relative hydrodynamic stability of a body of water immediately behind said barge hull and thereby decrease the towing resistance of said barge hull.

Lorenz, D.B.

1984-06-19

268

Offshore drilling boom expanding in Alaska  

SciTech Connect

A fleet of six drilling vessels moved into the Bering Sea in 1984, starting the biggest offshore drilling boom in Alaska's history. Despite the lack of discoveries most of the activity is centered on the Navarin Basin, which is regarded as the most promising of the Bering Sea basins. Assuming there are commercial discoveries, development of the Navarin riserves appears feasible through evolution of North Sea and Cook Inlet platform technology.

Not Available

1985-01-01

269

Arctic and offshore research: Technology status report  

SciTech Connect

This report describes the state of technology relative to the production of oil and gas in the Arctic. It discusses the technical issues that warrant investigation, and focuses on the current Department of Energy supported activities. Major accomplishments during the last year include the following: The Arctic and Offshore Research Information System (AORIS) was planned with industry survey recommendations incorporated. It contains a directory of 85 Arctic databases, a bibliographic component of over 7,000 citations, and a data component of about 300 data sets on sea ice characteristics. Seven position, pressure, and temperature buoys were deployed on ice islands (up to 3 by 6 miles in size) drifting off Ellesmere Island. Ice island movement, as much as 340 miles southwest of the Ward Hunt Ice Shelf during the last 4 years, represents a potential hazard to Arctic offshore structures in the Alaskan Beaufort Sea. The redesigned Seafloor Earthquake Measurement System (SEMS II) was deployed near Shell's Ellen-Elly platforms, about 10 miles offshore of Long Beach, California. The SEMS monitored the July 1986 southern California earthquakes. This was the first time earthquakes were simultaneouslly monitored by sensors located on land, aboard offshore platforms, and beneath the seafloor. Sea spray ice bond shear strength to various structural and protective coatings has been determined. The polyethylene coating demonstrated the most potential for rapid shedding of spray ice by gravity loading. Measurements of temperatures and salinities were completed as part of a pilot test to (1) detect seasonal conditions at the water-seabed interface, and (2) determine how they influence permafrost growth in the coastal waters of the Beaufort Sea. The temperatures and computed freezing point data suggest that seasonal seabed freezing can occur most of the winter. 13 refs., 14 figs., 4 tabs.

Not Available

1988-01-01

270

Offshore distributional patterns of Hawaiian fish larvae  

Microsoft Academic Search

An analysis of ichthyoplankton samples based on relative abundance reveals pronounced inshore\\/offshore distributional gradients for most Hawaiian fish larvae. Larvae of pelagic bay species are found almost exclusively in semi-enclosed bays and estuaries. Larvae of pelagic neritic species are more or less uniformly distributed with distance from shore. The larvae of reef species with non-pelagic eggs are most abundant close

J. M. Leis; J. M. Miller

1976-01-01

271

Caisson shield for arctic offshore production platform  

SciTech Connect

A caisson shield for the protection of an offshore production platform and, more particularly, a caisson shield for use in an arctic environment for the protection of the offshore structure in iceberg-infested waters which is capable of absorbing the destructive forces of an impact produced by a large iceberg. The caisson shield consists of an essentially annular concrete structure encircling at least the submerged support section of the offshore production platform including vertically upstanding concentrically spaced, annular side walls, a horizontal slab base resting on the marine bottom on which the side walls are supported, and a slab top supported on the side walls, and including annularly spaced internal radial partition walls whereby the entire overall caisson shield structure provides a generally toroidal configuration incorporating a plurality of closed compartments. In one embodiment of the invention, located along the outer annular wall is a plurality of arcuate wall sections forming a series of arches and enclosed compartments between each arcuate wall section and the outer annular wall, which impart a ''scallop-like'' configuration to the outer circumference of the caisson shield. The ''scallop-like'' outer walls are capable of resisting and absorbing extremely high ice loads by being adapted to progressively crush the leading edge of an impacting iceberg and to thereby minimize the crush of the iceberg against the caisson shield before coming to rest against the shield.

Clinton, J. D.; Reusswig, G. H.

1985-03-12

272

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

SciTech Connect

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.

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

2006-01-01

273

The wind speed profile at offshore wind farm sites Bernhard Lange(1)  

E-print Network

The wind speed profile at offshore wind farm sites Bernhard Lange(1) , Søren E. Larsen(2) , Jørgen feasibility of offshore wind power utilisation depends on the favourable wind conditions offshore compared in Europe will come from offshore sites. The first large offshore wind farms are #12;currently being built

Heinemann, Detlev

274

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

ERIC Educational Resources Information Center

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…

Wichita Public Schools, KS.

275

Delays in activity based neural networks By Stephen Coombes  

E-print Network

), or as a simple fixed or discrete delay. For an excellent review of the role of time delays in neural systems we 1. Introduction Delays arise naturally in models of neurobiological systems. For example the finite. The delay in the activity based model is interpreted by them as describing the time course of AP initiation

Laing, Carlo R.

276

Activity-Based Intervention Practices in Special Education  

ERIC Educational Resources Information Center

Teaching practices in natural settings such as activity-based intervention (ABI) are suggested as alternatives to be used in effective early childhood education. As a multidisciplinary model, ABI consists of four components, which are choosing activities according to the child's interests; teaching generalizable goals embedded in routines and…

Ozen, Arzu; Ergenekon, Yasemin

2011-01-01

277

Theory and Theory-Driven Practices of Activity Based Intervention  

ERIC Educational Resources Information Center

Activity Based Intervention (ABI) is an approach used in many early childhood programs serving the special needs of young children and their families. The purpose of this article is to present theoretical underpinnings of ABI, and discusses theory-based ABI practices. ABI draws upon multiple and varied theories which in turn inform practice. At…

Macy, Marisa

2007-01-01

278

Offshore Code Comparison Collaboration (OC3) for IEA Wind Task 23 Offshore Wind Technology and Deployment  

SciTech Connect

This final report for IEA Wind Task 23, Offshore Wind Energy Technology and Deployment, is made up of two separate reports, Subtask 1: Experience with Critical Deployment Issues and Subtask 2: Offshore Code Comparison Collaborative (OC3). Subtask 1 discusses ecological issues and regulation, electrical system integration, external conditions, and key conclusions for Subtask 1. Subtask 2 included here, is the larger of the two volumes and contains five chapters that cover background information and objectives of Subtask 2 and results from each of the four phases of the project.

Jonkman, J.; Musial, W.

2010-12-01

279

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

280

33 CFR 100.728 - Special Local Regulations; Hurricane Offshore Classic, St. Petersburg, FL.  

... false Special Local Regulations; Hurricane Offshore Classic, St. Petersburg...100.728 Special Local Regulations; Hurricane Offshore Classic, St. Petersburg...All vessel traffic, not involved in the Hurricane Offshore Classic, entering...

2014-07-01

281

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

Code of Federal Regulations, 2010 CFR

... false Fees for examination of foreign mobile offshore drilling units. 2.10-130...10-130 Fees for examination of foreign mobile offshore drilling units. Each foreign mobile offshore drilling unit must pay:...

2010-10-01

282

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

Code of Federal Regulations, 2010 CFR

...2010-10-01 false Officer endorsements for mobile offshore drilling units. 11.468...11.468 Officer endorsements for mobile offshore drilling units. Officer endorsements for service on mobile offshore drilling units...

2010-10-01

283

Toward Visualization and Analysis of Traceability Relationships in Distributed and Offshore Software  

E-print Network

Toward Visualization and Analysis of Traceability Relationships in Distributed and Offshore Relationships, Dependencies, Visualization, Distributed and Global Software Development, Offshore Software@ics.uci.edu Abstract. Offshore software development projects provoke new issues to the collaborative endeavor

Redmiles, David F.

284

Survey report of offshore wind conditions in prospect of offshore wind energy conversion systems in Japan  

Microsoft Academic Search

Wind energy is viewed as a promising new energy resource in its pure, clean, and inexhaustible nature. Because of less disturbed, stable and strong wind conditions, coastal areas are considered to be suitable for constructing wind energy systems. Moreover, it is said that offshore wind conditions are better than inshore wind conditions for power generation. However, actual measured reports of

K. Nishi; S. Shiraishi; M. Hamano; Y. Umeki; H. Kume

2004-01-01

285

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

Microsoft Academic Search

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

Bela Hieronymus Buck; Cornelia Maria Buchholz

2004-01-01

286

Aluminium alloys for offshore drilling systems  

SciTech Connect

This paper presents the experience gained in the USSR (now CIS) over many years in the use of Aluminum Drill Pipe (ADP). The main advantages of aluminum over steel for drill pipe applications are discussed. Methods of fabricating aluminum pipes with steel tool joints are explained. The problems of abrasion and corrosion resistance are presented. Recent experience testing ADP after exposure to the offshore environment have shown negligible reduction in fatigue life. It is now considered possible to design a slimline riser in aluminum for water depths of 3--4 kilometers.

Fine, G.M.; Basovich, V.S.; Pisarnitsky, A.D. [Superdeep Co. Zapolyarny, Murmansk (Russian Federation); Jemetz, B.V.; Mazurova, L.D. [VNIITNEFT, Samara (Russian Federation); Gelfgat, M.Ya. [Aquatic Co., Moscow (Russian Federation)

1995-12-31

287

Offshore installation and maintenance of submersible pumps  

SciTech Connect

Pertamina/IIAPCO operates a large offshore production complex in the Southeast Sumatra Contract Area of Indonesia. The use of submersible centrifugal electric pumps both for artificial lift and for pipeline transfer of produced fluids has played an important role in the success enjoyed by this contract area during its 10-year producing life. This paper describes the conditions and considerations contributing to the initial selection and eventual standardized use of these pumps by the company. Also included are a discussion of operational experience gained and a summary of the submersible pumps' performance record.

Verdina, G.G.

1983-01-01

288

Flow line riser for offshore structure  

SciTech Connect

Riser for an offshore marine platform which includes facilities to receive, treat, and/or store hydrocarbon fluid from a plurality of dispersed submerged wells. The riser includes means to accommodate a plurality of conduits between the platform deck and the floor of the body of water. As a rigid, or non-rigid conduit is pulled downwardly through the riser, it engages a deflecting shoe. The latter deflects the pulled conduit into a direction away from the platform and along the ocean floor, whereby it can readily engage a pipeline, or attach to one of the dispersed wells.

Knowles, J. P.; Mitchell, S. D.; Wheeler, S.

1985-05-28

289

High-alloy materials for offshore applications  

SciTech Connect

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.

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

1983-05-01

290

Activity-based proteomic and metabolomic approaches for understanding metabolism.  

PubMed

There are an increasing number of human pathologies that have been associated with altered metabolism, including obesity, diabetes, atherosclerosis, cancer, and neurodegenerative diseases. Most attention on metabolism has been focused on well-understood metabolic pathways and has largely ignored most of the biochemical pathways that operate in (patho)physiological settings, in part because of the vast landscape of uncharacterized and undiscovered metabolic pathways. One technology that has arisen to meet this challenge is activity-based protein profiling (ABPP) that uses activity-based chemical probes to broadly assess the functional states of both characterized and uncharacterized enzymes. This review will focus on how ABPP, coupled with inhibitor discovery platforms and functional metabolomic technologies, have led to discoveries that have expanded our knowledge of metabolism in health and disease. PMID:24594637

Hunerdosse, Devon; Nomura, Daniel K

2014-08-01

291

New Horizons for Offshore Wind Energy: Shifting Paradigms and Challenges  

Microsoft Academic Search

The placing of wind turbines offshore is likely to lead to developments of the technology as far-reaching as those which turned the crude onshore machines of the early 1980s into the elegant giants of today. This article discusses the acute need of development of offshore wind energy converting systems. The development of different design techniques and the economics of these

T. S. BHATTI; D. P. KOTHARI

2005-01-01

292

Assessment of off-shore wind farms in Malaysia  

Microsoft Academic Search

A lot of attention is being paid to wind energy due to the focus on renewable energy. Malaysia is situated in the equatorial region and its climate is governed by the monsoons. Wind resource in Malaysia varies from one location to another. Wind speed is better offshore compared to onshore, so more contribution by offshore wind powers in terms of

S. Mekhilef; D. Chandrasegaran

2011-01-01

293

Offshore wind farms in Italy: the Sicily case  

Microsoft Academic Search

Today in the research for new energies, the wind rep resents a powerful source of energy, especially if used offshore. Because of the high initial investments, it is necessary to study the feasibility of the pot ential project. For Italy, the best places set up offshore wind far m are in Sardinia and Sicily. The studies carried out by Project

Cecilia Camporeale

2006-01-01

294

Offshore oil and gas: global resource knowledge and technological change  

Microsoft Academic Search

It is argued that the contribution of technological change to the offshore oil and gas industry's progress is under-researched. As a prelude this theme, the changing geography of known offshore oil and gas resources is reviewed. Significant, and largely technologically dependent, developments are identified in terms of the industry's global spread, its extension into deep and ultradeep waters and its

David Pinder

2001-01-01

295

Structural monitoring of offshore platforms using impulse and relaxation response  

Microsoft Academic Search

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

Lalu Mangal; V. G Idichandy; C Ganapathy

2001-01-01

296

Integrated Multidisciplinary Constrained Optimization of Offshore Support Structures  

E-print Network

Integrated Multidisciplinary Constrained Optimization of Offshore Support Structures Rad Haghi1 structure more positively. Previous studies show the advantages of the integrated design with either limited.haghi@siemens.com Abstract. In the current offshore wind turbine support structure design method, the tower and foundation

Papalambros, Panos

297

Bank secrecy, illicit money and offshore financial centers  

Microsoft Academic Search

This paper discusses the effects of pressure policies on offshore financial centers as well as their ability to enforce the compliance of those centers with anti-money laundering regulations. Offshore banks can be encouraged to comply with rigorous monitoring of an investor's identity and the origin of his\\/her funds when pressure creates a sufficiently high risk of reputational harm to the

Pierre M. Picard; Patrice Pieretti

2011-01-01

298

Bank secrecy, illicit money and offshore financial centers  

Microsoft Academic Search

This paper discusses the effects of pressure policies on offshore financial centers as well as their ability to enforce the compliance of those centers with anti-money laundering regulations. Offshore banks can be encouraged to comply with rigorous monitoring of an investor's identity and the origin of his\\/her funds when pressure creates a sufficiently high risk of reputational harm to the

Pierre PICARD; Patrice PIERETTI

2010-01-01

299

DISCIPLINER LES CENTRES FINANCIERS OFFSHORE : INCITATION PAR LA PRESSION INTERNATIONALE  

Microsoft Academic Search

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

Arnaud BOURGAIN; Patrice PIERETTI

2007-01-01

300

Northwest Sumatra and Offshore Islands Field Survey after the December  

E-print Network

Northwest Sumatra and Offshore Islands Field Survey after the December 2004 Indian Ocean Tsunami on the west coast of northern and central Sumatra and offshore islands 3­4 months after the 26 December 2004 Islands, and included 22 sites in Aceh province in Sumatra and on Simeulue Island, Nias Island, the Banyak

301

Quantifying the Benefits of Combining Offshore Wind and Wave Energy  

Microsoft Academic Search

For many locations the offshore wind resource and the wave energy resource are collocated, which suggests a natural synergy if both technologies are combined into one offshore marine renewable energy plant. Initial meteorological assessments of the western coast of the United States suggest only a weak correlation in power levels of wind and wave energy at any given hour associated

E. Stoutenburg; M. Z. Jacobson

2009-01-01

302

Offshoring and Transfer of Intellectual Property Gio Wiederhold  

E-print Network

deals well with issues of job loss and job creation, its title: "Globalization and Offshoring that participates in offshoring. Many enterprises, involved in the creation and use of software, are similarly cases, the destination for valuable IP is a Controlled Foreign Corporation (CFC), owned and controlled

Wiederhold, Gio

303

Offshore oil and gas occupational accidents—What is important?  

Microsoft Academic Search

Occupational accidents continue to present a problem to industry in general and the offshore oil and gas business in particular. To address this concern, a quantitative model capable of predicting occupational accident frequency in the offshore petroleum industry is being developed. The model offers a means to optimise safety spending, thereby maximising benefits to personnel and the organisation. As input

Daryl Attwood; Faisal Khan; Brian Veitch

2006-01-01

304

Experience of executing fixed price off-shored agile project  

Microsoft Academic Search

Organizations delivering offshore software development services have traditionally focused on CMMI framework to deliver quality software. With agile methodologies gaining more wide spread acceptance, such organizations cannot stay away from them. There are concerns about combining agile methodologies with offshoring. There are also concerns about mismatch of agile methodologies with CMMI framework. In this paper we have looked at the

Udayan Banerjee; Eswaran Narasimhan; N. Kanakalata

2011-01-01

305

Improvement of Offshore Wind Resource Modeling in the Mid-  

E-print Network

Improvement of Offshore Wind Resource Modeling in the Mid- Atlantic Bight Wind Energy Symposium Sienkiewicz , Chris Hughes 26 February 2013 #12;Improving Atmospheric Models for Offshore Wind Resource Mapping and Prediction Using LIDAR, Aircraft, and In-Ocean Observations Dr. Brian A. Colle Stony Brook

Firestone, Jeremy

306

E2I EPRI Assessment Offshore Wave Energy Conversion Devices  

E-print Network

, government/industry, public/private collaborative program to assess and demonstrate the feasibilityE2I 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

307

Globalization and Offshoring of Software Moshe Y. Vardi  

E-print Network

Globalization and Offshoring of Software Moshe Y. Vardi Rice University #12;Whoosh . . . · 1992, Europeans 2 #12;Early Decisions · Co-chairs: Mayadas+Vardi. Editor: Aspray · Global perspective · Secondary-Home Points · Offshoring is just a symptom, the issue is globalization. · We enabled it. Now we have to live

Vardi, Moshe Y.

308

Panel 2A: offshore oil and gas technology assessment  

SciTech Connect

The status of offshore oil and natural gas technology is reviewed, particularly as it pertains to deepwater and Arctic frontier areas of the U.S. Outer Continental Shelf. Offshore platforms, pipelines, tanker loading systems, and subsea support systems are discussed. Research and development activities of the petroleum industry, the U.S. Government, and the governments around the North Sea are briefly discussed.

Crooke, R.C.; Otteman, L.G.

1984-01-01

309

Challenges in Predicting Power Output from Offshore Wind Farms  

E-print Network

Challenges in Predicting Power Output from Offshore Wind Farms R. J. Barthelmie1 and S. C. Pryor2 an offshore wind farm, accurate assessment of the wind resource/power output from the wind farm is a necessity. Accurately predicting the power output requires an estimate of the wind resource over the lifetime

Pryor, Sara C.

310

Offshore Wind Power Experiences, Potential and Key Issues for  

E-print Network

Offshore Wind Power Experiences, Potential and Key Issues for Deployment Jørgen Lemming, Poul Erik-Erik Clausen Title: Offshore Wind Power Experiences, Potential and Key Issues for Deployment Division: VEA, SYS Risø-R-1673(EN) January 2008 Abstract: Wind power has been growing at spectacular rates. Today

311

International Collaboration on Offshore Wind Energy Under IEA Annex XXIII  

SciTech Connect

This paper defines the purpose of IEA Annex XXIII, the International Collaboration on Offshore Wind Energy. This international collaboration through the International Energy Agency (IEA) is an efficient forum from which to advance the technical and environmental experiences collected from existing offshore wind energy projects, as well as the research necessary to advance future technology for deep-water wind energy technology.

Musial, W.; Butterfield, S.; Lemming, J.

2005-11-01

312

47 CFR 22.1007 - Channels for offshore radiotelephone systems.  

Code of Federal Regulations, 2010 CFR

...2010-10-01 false Channels for offshore radiotelephone...Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED...Service § 22.1007 Channels for offshore radiotelephone...operating on interstitial channels must be used only for voice grade general communications or to provide for...

2010-10-01

313

Wind Resource Mapping for United States Offshore Areas: Preprint  

SciTech Connect

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.

Elliott, D.; Schwartz, M.

2006-06-01

314

Riser and wellhead monitoring for improved offshore drilling operations  

E-print Network

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 behaviour · Redundant system to secure stable, reliable data access · Online data distribution to the rig

Nørvåg, Kjetil

315

A Risk Assessment Model for Offshoring Using CMMI Quantitative Approach  

Microsoft Academic Search

Risk analysis and assessment obviously provides valuable insights to offshoring projects to identify and evaluate the magnitude of risks associated with the activities and the work products being considered. In offshoring software industry, successful execution of risk analysis drastically relies on strong software process skills and management skills to resolve the differences in cultures, languages, time zones, and development which

Morakot Choetkiertikul; Thanwadee Sunetnanta

2010-01-01

316

Contribution of offshore petroleum deposits to marine food chain  

Microsoft Academic Search

Petroleum production out of offshore petroleum deposits often coincides with abundant fisheries in the world. Superposition of marine microorganism concentration distribution and offshore petroleum field distribution from various data in the literature provides to prove this coincidence. Sakhalin Island coastal regions, North Sea, Gulf of Mexico, etc. are chosen for the superpositions. Significant conformity is observed between the plankton concentration

S. Mori

2009-01-01

317

Bedout: A Possible End-Permian Impact Crater Offshore of  

E-print Network

Bedout: A Possible End-Permian Impact Crater Offshore of Northwestern Australia L. Becker,1 * R. J, and spherulitic glass. The distribution of glass and shocked minerals over hundreds of meters of core material") High offshore of northwest- ern Australia might be the central uplift of a large end-Permian impact

Basu, Asish R.

318

DISTRIBUTED OPTIMIZATION AND CONTROL OF OFFSHORE OIL PRODUCTION: THE INTELLIGENT  

E-print Network

DISTRIBUTED OPTIMIZATION AND CONTROL OF OFFSHORE OIL PRODUCTION: THE INTELLIGENT PLATFORM Michael R to distributed optimization and control of offshore oil production systems. The model incorporates a complex. The proposed distributed controller network can be seen as a special case of a Multi Agent System (MAS

Foss, Bjarne A.

319

Influence of Subsea Cables on Offshore Power Distribution Systems  

Microsoft Academic Search

Subsea cable applications for the offshore power distribution systems create technical challenges in the system design, operation and maintenance. Harmonic parallel resonance introduced by subsea cables is one of the main concerns. In this paper, parallel resonance is investigated for an offshore distribution system with lengthy subsea cables on four interconnected platforms. Variable frequency drives are the dominant loads on

Xiaodong Liang; William Jackson

2008-01-01

320

Influence of Subsea Cables on Offshore Power Distribution Systems  

Microsoft Academic Search

Subsea cable applications for the offshore power distribution systems create technical challenges in the system design, operation, and maintenance. Harmonic parallel resonance introduced by subsea cables is one of the main concerns. In this paper, parallel resonance is investigated for an offshore distribution system with lengthy subsea cables on four interconnected platforms. Variable frequency drives (VFDs) are the dominant loads

Xiaodong Liang; William Michael Jackson

2009-01-01

321

The sea bottom temperature offshore southwestern Taiwan  

NASA Astrophysics Data System (ADS)

The sea bottom temperature (SBT) is important to apply to the heat flow estimation by BSR. Also the SBT may response the fluid migration near subsurface. Here we present 150 measurements of SBT offshore southwestern Taiwan where abundant gas hydrates has been evaluated. The SBT data were acquired by the heat probe with high resolution up to 0.0001°C. Thermal gradients were determined from several temperature sensors installed in different depth in the heat probe and then the SBT could be calculated by extrapolation. The results show that the SBT are between 2.23 and 10.14°C in water depth within the range of 409 to 3248 meters. Basically, the SBT is inversely hyperbolic proportional to the water depth for those 132 measurements the water depth are shallower than 2650 meters. The product of SBT and water depth has an average of 4419 m-°C and a standard deviation of 402 m-°C. However the SBT of others 18 measurements in the deep water region are scattered without any significant trend. Some measurements near mud diapirs in the shallow water have high anomaly SBT. It is suggested that the fluid from deep underground may migrate along the fractures or faults related to the movements of the mud volume.; The sea bottom temperature offshore southwestern Taiwan

Chiang, H.; Shyu, C.; Peng, Y.; Chang, H.; Chen, S.; Chung, S.; Wang, Y.

2012-12-01

322

Review of Methodologies for Offshore Wind Resource Assessment in European Seas  

NASA Astrophysics Data System (ADS)

The wind resource offshore is generally larger than at geographically nearby onshore sites, which can offset the higher installation, operation and maintenance costs associated with offshore wind parks. Successful offshore wind energy development relies to some extent on accurate prediction of wind resources, but since installing and operating a meteorological mast in situ is expensive, prospective sites must be carefully evaluated. Accordingly, one can conceptualize the wind resource assessment process as a two-phase activity: ( i) an evaluation of wind resources at the regional scale to locate promising wind farm sites and ( ii) a site specific evaluation of wind climatology and vertical profiles of wind and atmospheric turbulence, in addition to an assessment of historical and possibly future changes due to climate non-stationarity. Phase ( i) of the process can involve use of in situ observations of opportunity derived from ships, lighthouses and buoys in conjunction with model tools and remote sensing products. The reliability of such data sources has been extensively investigated in different national and European projects especially in Northern Europe, and the results are summarized herein. Phase ( ii) of the project often still requires in situ observations (which may or may not be supplemented with ground-based remote sensing technologies) and application of tools to provide a climatological context for the resulting measurements. Current methodologies for undertaking these aspects of the resource assessment are reviewed.

Sempreviva, A. M.; Barthelmie, R. J.; Pryor, S. C.

2008-12-01

323

Risk management in the North sea offshore industry: History, status and challenges  

NASA Astrophysics Data System (ADS)

There have been major changes in the UK and Norwegian offshore safety regimes in the last decade. On the basis of accumulated experience (including some major accidents), there has been a move away from a rigid, prescriptive approach to setting safety standards; it is now recognised that a more flexible, "goal-setting" approach is more suited to achieving cost-effective solutions to offshore safety. In order to adapt to this approach, offshore operators are increasingly using Quantitative Risk Assessment (QRA) techniques as part of their risk management programmes. Structured risk assessment can be used at all stages of a project life-cycle. In the design stages (concept and detailed design), these techniques are valuable tools in ensuring that money is wisely spent on safety-related systems. In the operational stage, QRA can aid the development of procedures. High quality Safety Management Systems (SMSs), covering issues such as training, inspection, and emergency planning, are crucial to maintain "asdesigned" levels of safety and reliability. Audits of SMSs should be carried out all through the operational phase to ensure that risky conditions do not accumulate.

Smith, E. J.

1995-10-01

324

Management of offshore wastes in the United States.  

SciTech Connect

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.

Veil, J. A.

1998-10-22

325

R & D on Offshore Wind Power Generation System in Japan  

NASA Astrophysics Data System (ADS)

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 power generation system have to be investigated in Japan. According to the data observed offshore, the wind speed is enough higher than that on land and the wind energy is economically feasible. In order to utilize the energy, the design method of the foundation against very high waves in typhoon storm should be established. For shallow offshore coastal area, gravity foundation type has been improved by hydraulic experiment. Additionally, for deeper ocean, floating types such as semi-submersible float and spar-buoy have been researched.

Oishi, Kazuhito; Fukumoto, Yukinari

326

OMAE 1995 -- Proceedings of the 14. international conference on offshore mechanics and arctic engineering. Volume 1, Part B: Offshore technology  

SciTech Connect

This conference proceeding represents the second part of the volume of papers related to offshore technology as it relates to design of offshore structures, jacket and floating structures, tension leg platforms, mooring systems, risers, and cables. It also contains papers relating to structural and geotechnical mechanics. Separate abstracts were prepared for 48 papers in this report for inclusion in the information retrieval system.

Chakrabarti, S.K. [ed.] [Chicago Bridge and Iron Technical Services, Plainfield, IL (United States); Gudmestad, O.T. [ed.] [Statoil, Stavanger (Norway); Sparks, C. [ed.] [Inst. Francais du Petrole, Rueil-Malmaison (France); Morrison, D.G. [ed.] [Shell E and P Technology Co., Houston, TX (United States)

1995-12-31

327

Copyright 1999, Offshore Technology Conference This paper was prepared for presentation at the 1999 Offshore Technology Conference held in  

E-print Network

Offshore Technology Conference held in Houston, Texas, 3­6 May 1999. This paper was selected in the development of marginal fields. Whilst pile design procedures evolved smoothly from onshore experience and theory, design of shallow foundation systems has had to be re-examined in light of the intense offshore

Byrne, Byron

328

Autonomous buoy for offshore well control and monitoring  

SciTech Connect

Conventional subsea control systems require expensive electrohydraulic umbilicals that limit the maximum distance between platform and well. A proposed control-buoy concept is a hybrid well-control system with the reliability of conventional umbilical-based systems and the long-distance cost advantages of umbilical-free systems. Well 4-ALS-39 is a marginal gas well off-shore the state of Alagoas, northeast Brazil, in 25-m-deep water. Its production development became economically feasible with the use of an autonomous control buoy for well control and monitoring. A control and data-acquisition system installed on the buoy monitors wellhead pressure and temperature and controls the wet-Christmas-tree valves and production choke through a conventional electrohydraulic umbilical. A radio link between the buoy and shore ensures permanent supervision and interlock with the onshore pipeline valves and metering station. Because the onshore plant is normally unmanned, a dialed cellular-telephone line allows remote well monitoring and operation. The small buoy is completely autonomous in terms of energy. All energy required to power the system is generated locally by solar panels and a low-power, electrically driven hydraulic-power unit.

NONE

1998-08-01

329

Uses of motion imagery in activity-based intelligence  

NASA Astrophysics Data System (ADS)

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.

Lash, Thomas D.

2013-05-01

330

Problem 65 in Section 4.1 (Page 274) Constructing a pipeline Supertankers off-load oil at a docking facility 4 mi offshore. The nearest refinery  

E-print Network

facility 4 mi offshore. The nearest refinery is 9 mi east of the shore point nearest the docking facility. A pipeline must be constructed connecting the docking facility with the refinery. The pipeline costs $300.42 miles away from the refinery, or equivalently 3.58 miles away from Point A (as the back of the book has

Schilling, Anne

331

Endowments of undiscovered conventionally recoverable and economically recoverable oil and gas in the Alaska federal offshore as of January 1995. Final report  

SciTech Connect

The report summarizes the Minerals Management Service assessment of the quantities of undiscovered oil and gas that lie beneath submerged Federal lands offshore of Alaska. Resource estimates include both the geologic endowment, consisting of conventionally recoverable resources unconstrained by economics, as well as the more modest quantities of oil and gas that can be recovered profitably, considering the costs associated with producing the resource.

Sherwood, K.W.; Craig, J.D.; Cooke, L.W.

1996-05-01

332

EARTHQUAKE HAZARDS IN THE OFFSHORE ENVIRONMENT.  

USGS Publications Warehouse

This report discusses earthquake effects and potential hazards in the marine environment, describes and illustrates methods for the evaluation of earthquake hazards, and briefly reviews strategies for mitigating hazards. The report is broadly directed toward engineers, scientists, and others engaged in developing offshore resources. The continental shelves have become a major frontier in the search for new petroleum resources. Much of the current exploration is in areas of moderate to high earthquake activity. If the resources in these areas are to be developed economically and safely, potential earthquake hazards must be identified and mitigated both in planning and regulating activities and in designing, constructing, and operating facilities. Geologic earthquake effects that can be hazardous to marine facilities and operations include surface faulting, tectonic uplift and subsidence, seismic shaking, sea-floor failures, turbidity currents, and tsunamis.

Page, Robert A.; Basham, Peter W.

1985-01-01

333

Storage of Carbon Dioxide in Offshore Sediments  

NASA Astrophysics Data System (ADS)

The battle to reduce greenhouse gas emissions and prevent the most dangerous consequences of climate change will be waged across multiple fronts, including efforts to increase energy efficiency; efforts to deploy nonfossil fuel sources, including renewable and nuclear energy; and investment in adaptation to reduce the impacts of the climate change that will occur regardless of the actions we take. But with more than 80% of the world’s energy coming from fossil fuel, winning the battle also requires capturing CO2 from large stationary sources and storing that CO2 in geologic repositories. Offshore geological repositories have received relatively little attention as potential CO2 storage sites, despite their having a number of important advantages over onshore sites, and should be considered more closely.

Schrag, Daniel P.

2009-09-01

334

Time Dependent Fluid Occurrence Offshore Taiwan  

NASA Astrophysics Data System (ADS)

Time Dependent Fluid Occurrence Offshore Taiwan Liwen Chenab, Wu-Cheng Chia, Char-Shine Liuc (mma@earth.sinica.edu.tw)(wchi@gate.sinica.edu.tw) ; aInstitute of Earth Sciences, Academia Sinica, Taipei, Taiwan bInstitute of Geosciences, National Taiwan University, Taipei, Taiwan ; cInstitute of Oceanography, National Taiwan University, Taipei, Taiwan Earthquake-induced groundwater flows have been observed recently. Such fluid flow might temporarily change the temperature field in the crust. Here we used seismically detected gas hydrate under seafloor to study the temperature fields at a few hundred meters subbottom depth before, and after the 2006 Henchuan earthquake (Mw7.0). We used the hydrate-related bottom-simulating-reflector (BSR) in seismic profiles to study the effects of gas/fluid migration on the BSR attributes. We have conducted two seismic experiments before and after the earthquake across the same transects near the hypocenter of the earthquake using similar air gun arrays and streamers. By analyzing this unique dataset, we found enhanced BSR reflectivity in average after the earthquake (~0.03), but the Sea-floor reflectivity is very similar (~0.5). We also found changed amplitudes versus offset (AVO) in the dataset (the gradient of reflection coefficient versus the angles was ~-0.34). We interpret these results as a consequence of earthquake-induced gas and fluid migration, bringing the gases underneath the BSR, thus the enhanced reflection coefficients. Next we will explore new methods to use the BSR as a flow meter. Using time-dependent seismic attribute analyses across transects before and after a large earthquake, we found strong evidences of earthquake-related fluid migrations and possibly associated temperature perturbations. This is among the first studies to document such feature in the offshore region.

Chen, L.

2010-12-01

335

Trade Costs  

Microsoft Academic Search

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

James E. Anderson; Eric van Wincoop

2004-01-01

336

Assessment of Offshore Wind System Design, Safety, and Operation Standards  

SciTech Connect

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.

Sirnivas, S.; Musial, W.; Bailey, B.; Filippelli, M.

2014-01-01

337

Medical support by a team of doctors to offshore paramedics.  

PubMed

The experience of one team of doctors supporting offshore paramedics in the North Sea is described. During 1985 all cases for which radio advice from a doctor was sought by offshore paramedics and all cases referred for examination by a doctor were analysed. Of the 743 cases 528 (71%) were referred for examination by a doctor and for 215 (29%) the offshore paramedics sought radio advice only. Injury formed the largest category of disorder for both groups of cases. The majority of patients referred for examination were seen in the doctor's surgery and following examination over half were cared for at home by their own general practitioner. PMID:3694575

Phillips, J C

1987-04-01

338

MODELLING THE VERTICAL WIND SPEED AND TURBULENCE INTENSITY PROFILES AT PROSPECTIVE OFFSHORE WIND FARM SITES  

E-print Network

MODELLING THE VERTICAL WIND SPEED AND TURBULENCE INTENSITY PROFILES AT PROSPECTIVE OFFSHORE WIND important for offshore wind energy utilisation are discussed and tested: Four models for the surface of wind energy utilisation at least in Europe will come from offshore sites. The first large offshore wind

Heinemann, Detlev

339

An Empirical Investigation of Client Managers’ Responsibilities in Managing Offshore Outsourcing of Software-Testing Projects  

Microsoft Academic Search

Despite an increase in the offshore outsourcing of in- formation technology (IT) projects, little research has been carried out to identify issues that client managers (CMs) encounter when managing projects with offshore vendors. Also research on how CMs' responsibilities change to effectively manage offshore out- sourcing relationships has received little attention. We conducted a case study of an offshore outsourcing

Radhika P. Jain; Robin S. Poston; Judith C. Simon

2011-01-01

340

READINESS AND MINDSET FOR IT OFFSHORING: INSIGHTS FROM BANKING AND INSURANCE ORGANIZATIONS  

Microsoft Academic Search

In this research we examine the IT offshore outsourcing (offshoring) practice of a number of leading finance and insurance organizations in the Netherlands. In particular, we investigate the readiness (the state, condition or quality of being ready) and mindset (habits, opinions which affect a person's attitudes) of the organizations for IT offshoring. We examine IT offshoring practice from the process

Mehmet N. Aydin; Jos van Hillegersberg

341

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

Federal Register 2010, 2011, 2012, 2013

...for the Offshore Supply Vessel KELLY ANN CANDIES AGENCY: Coast Guard, DHS. ACTION...for the offshore supply vessel KELLY ANN CANDIES as required by 33 U.S.C. 1605(c...Purpose The offshore supply vessel KELLY ANN CANDIES will be used for offshore supply...

2010-01-05

342

Offshoring and the global distribution of work: Implications for task interdependence theory and practice  

Microsoft Academic Search

A recent Offshoring Research Network (ORN) global survey of offshoring shows that since 2004 management concerns about operational issues on achieving the benefits of offshoring have increased significantly. In this paper we examine inter-task interdependence, a key operational determinant of inter-site interaction and communications in offshoring. We analyze existing theories of interdependence to examine the extent to which they provide

Kuldeep Kumar; Paul C van Fenema; Mary Ann von Glinow

343

Offshoring and the global distribution of work: Implications for task interdependence theory and practice  

Microsoft Academic Search

A recent Offshoring Research Network (ORN) global survey of offshoring shows that since 2004 management concerns about operational issues on achieving the benefits of offshoring have increased significantly. In this paper we examine inter-task interdependence, a key operational determinant of inter-site interaction and communications in offshoring. We analyze existing theories of interdependence to examine the extent to which they provide

Kuldeep Kumar; Paul C van Fenema; Mary Ann von Glinow

2009-01-01

344

How Much Does Instruction and Research Really Cost?  

ERIC Educational Resources Information Center

Describes an institution-wide activity-based costing study conducted at a large, urban, public university. The program cost study provides campus-, school-, and department-level cost information for the full range of mission-critical activities in teaching, research, and service. It also includes allocation of all levels of overhead to…

Rooney, Patrick M.; Borden, Victor M. H.; Thomas, Timothy J.

1999-01-01

345

Full Costing of Business Programs: Benefits and Caveats  

ERIC Educational Resources Information Center

Purpose: To suggest an approach to program costing that includes the approaches and concepts developed in activity based costing. Design/methodology/approach: The paper utilizes a hypothetical case study of an Executive MBA program as a means of illustrating the suggested approach to costing. Findings: The paper illustrates both the benefits of…

Simmons, Cynthia; Wright, Michael; Jones, Vernon

2006-01-01

346

Activity Based Physics Alternative Homework Assignments: Rocket Motion  

NSDL National Science Digital Library

This web page contains a homework assignment that asks the student to solve problems based on the launch and flight of a rocket. Developed as an alternative to traditional textbook homework, this item is based on the work of the Activity Based Physics project (ABP). Students must make estimations and build their own mathematical models to determine which concepts of classical mechanics apply to each section of the problem set. Topics covered include kinematics, Newton's second law, conservation of energy, and projectile motion. This item is part of a larger collection of alternative homework assignments designed for introductory physics students. Each assignment poses a series of questions about a single context. To successfully complete assignments, students must think critically about how the physical situation could be represented by mathematics.

Redish, Edward F.; Cooney, Patrick; Vick, K.

2008-11-26

347

Women's responses to an activity-based introductory physics program  

NASA Astrophysics Data System (ADS)

It has been said that women ought to like science courses that are hands-on, collaborative, and afford a high degree of personal attention. In this article we examine this assumption by considering some women's responses to Workshop Physics—a calculus-based introductory course sequence in which lectures are abandoned in favor of activity-based collaborative work enhanced by the use of integrated computer tools. Early in the development of the Workshop curriculum an attitude survey revealed that pre-medical junior and senior women were more negative about their experience than either their male counterparts or freshmen and sophomore students. We explored reasons for this phenomenon by interviewing a group of women who had enrolled in Workshop Physics courses.

Laws, Priscilla W.; Rosborough, Pamela J.; Poodry, Frances J.

1999-07-01

348

Activity-based intelligence tipping and cueing using polarimetric sensors  

NASA Astrophysics Data System (ADS)

Activity Based Intelligence (ABI) is the derivation of information from the composite of a series of individual actions being recorded over a period of time. Due to its temporal nature, ABI is usually developed from Motion Imagery (MI) or Full Motion Video (FMV) taken of a given scene. One of today's common issues is sifting through such large volumes of temporal data. Here we propose using a technique known as tipping an cueing to alleviate the need to manually sift through said data. Being able to tip the analysts or automated algorithm towards a particular person or object in the data is useful in reducing search time. We propose using a polarimetric sensor to identify objects of interest, in a scene where their signature would be unusual. Once identified, this data will be used to cue a FMV RGB sensor to track the object and determine the activities being executed by the person bringing the object into the scene.

Lewis, Christian M.; Messinger, David; Gartley, Michael G.

2014-05-01

349

Development of a composite repair system for reinforcing offshore risers  

E-print Network

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...

Alexander, Christopher Richard

2009-05-15

350

Reliability-based Design of Offshore Mooring Systems  

E-print Network

This study proposes new methods for the reliability-based design of structural systems, with emphasis on offshore mooring systems. After a brief introduction to the mooring systems, two main objectives are discussed in this dissertation. The first...

Mousavi, Mir Emad

2013-02-05

351

OUTSHORE Maturity Model: Assistance for Software Offshore Outsourcing Decisions  

NASA Astrophysics Data System (ADS)

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.

Mäkiö, Juho; Betz, Stafanie; Oberweis, Andreas

352

76 FR 62817 - National Offshore Safety Advisory Committee  

Federal Register 2010, 2011, 2012, 2013

...The National Offshore Safety Advisory Committee...on regulating worker safety in connection with the...10) EO 13580--Domestic Energy Development and...activities of Ocean Energy Safety Advisory Committee...of Liquefied Natural Gas (LNG) as fuel for...

2011-10-11

353

Method and apparatus for positioning an offshore platform jacket  

SciTech Connect

A method is described of positioning an offshore platform jacket comprising the steps of: loading and securing the platform jacket onto a tension leg barge; towing the tension leg barge to a predetermined offshore location; laying anchors on the floor of the ocean at the predetermined offshore location; attaching lines between the anchors and the tension leg barge to position and maintain the barge above the predetermined offshore location; partially submerging the tension leg barge by shortening the lines between the anchors and the tension leg barge; completing the submerging of the tension leg barge by flooding the barge with seawater; and releasing the platform jacket from the tension leg barge and towing the jacket off the barge while the barge is submerged.

Oksuzler, Y.

1987-09-01

354

75 FR 12772 - National Offshore Safety Advisory Committee; Meeting  

Federal Register 2010, 2011, 2012, 2013

...DEPARTMENT OF HOMELAND SECURITY Coast Guard [USCG-2010-0127] National...issues relating to offshore safety and security. The meeting will be open to the public...the Waterbury Ballroom of the Sheraton Hotel and Conference Center, 500 Canal...

2010-03-17

355

78 FR 34115 - National Offshore Safety Advisory Committee  

Federal Register 2010, 2011, 2012, 2013

...The National Offshore Safety Advisory Committee...on commercial diving safety to consider recommendations...for commercial diving operational standards. This teleconference...on commercial diving safety to consider recommendations...improved commercial diving operational standards. (3)...

2013-06-06

356

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 Design ApS #12;Horns Rev. Hard Bottom Substrate Monitoring Page 3 Annual Status Report 2003 Doc. No. 2230

357

A wind chart to characterize potential offshore wind energy sites  

NASA Astrophysics Data System (ADS)

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.

del Jesus, F.; Menéndez, M.; Guanche, R.; Losada, I. J.

2014-10-01

358

Design, manufacturing and tests of first cryogen-free MgB2 prototype coils for offshore wind generators  

NASA Astrophysics Data System (ADS)

Although renewable sector has started to take advantage of the offshore wind energy recently, the development is very intense. Turbines reliability, size, and cost are key aspects for the wind industry, especially in marine locations. A superconducting generator will allow a significant reduction in terms of weight and size, but cost and reliability are two aspects to deal with. MgB2 wire is presented as one promising option to be used in superconducting coils for wind generators. This work shows the experimental results in first cryogen-free MgB2 prototype coils, designed according to specific requirements of TECNALIA's wind generator concept.

Sarmiento, G.; Sanz, S.; Pujana, A.; Merino, J. M.; Iturbe, R.; Apiñaniz, S.; Nardelli, D.; Marino, I.

2014-05-01

359

Offshore data base shows decline in rig accidents  

SciTech Connect

Institut Francais du Petrole (IFP) has compiled statistical figures on offshore accidents for risk, safety, and reliability studies. IFP calls this data base Platform. It provides a body of essential data for accidents concerning both mobile and stationary offshore drilling rigs. Historical accident data bases are a basic implement for risk assessment of safety and reliability. IFP has built this data base with all available information from 950 actual listings.

Bertrand, A.; Escoffier, L. (Institut Francais du Petrole, Rueil-Maimaison (FR))

1991-09-16

360

Offshore Software Development: Transferring Research Findings into the Classroom  

Microsoft Academic Search

Distributed software projects are becoming increasingly commonplace in industry. Yet, software engineering education rarely\\u000a graduates students with the necessary skills and hands-on experience that are particular to off-shore software development\\u000a projects. Three key areas in successful off-shore software development projects are well documented in the literature as communication,\\u000a knowledge management, as well as project and process management. This paper maps

Kay Berkling; Michael Geisser; Tobias Hildenbrand; Franz Rothlauf

2007-01-01

361

Nonlinear stochastic approach to relative motion for offshore structures  

E-print Network

NONLINEAR STOCHASTIC APPROACH TO RELATIVE NOTION FOR OFFSHORE STRUCTURES A Thesis by ERIC WILLIAM SANDT Submitted to the Graduate College of Texas AAM University in partial fulfillment of the requirements for the degree of MASTER QF SCIENCE... December 1985 Major Subject: Ocean Engineering NONLINEAR STOCHASTIC APPROACH TO RELATIVE NOTION FOR OFFSHORE STRUCTURES A Thesis by ERIC WILLIAM SANDT Approved as to style and content. by: John M. Niedzw cki (Chairman of Com ittee) John E. Flipse...

Sandt, Eric William

2012-06-07

362

Outsourcing and Offshoring with Agility: A Case Study  

Microsoft Academic Search

\\u000a We describe techniques and lessons learned from using agile methodologies with distributed teams, specifically outsourced\\u000a and offshore development teams. Such teams often need to contend with multiple organizational boundaries, differences in time\\u000a zone, language, and culture, and other communication challenges. First, we present concepts and issues in outsourcing and\\u000a offshoring. Second, we describe a case study involving continually changing requirements,

Clifton Kussmaul; Roger Jack; Barry Sponsler

363

Offshore sand prospecting in : History and recent efforts  

Microsoft Academic Search

Sea Engineering, Inc. (SEI) has continued long-standing efforts to find exploitable offshore sand resources for the purpose of nourishing Hawaii's beaches. Investigations by University of Hawaii researchers in the 1970's established the potential presence of large bodies of sand in ancient offshore alluvial channels and wave-cut terraces. Sampling efforts showed that much of the sand was too fine-grained to be

James H. Barry

2011-01-01

364

Sequence stratigraphy of Niger Delta, Delta field, offshore Nigeria  

E-print Network

to middle Miocene age formed canyons which filled with shale; these fills provide top seals on the flanks of the delta for some important offshore fields (Doust and Omatsola, 1990). 18 LOCATION AND METHODOLOGY Location Delta field is located... to middle Miocene age formed canyons which filled with shale; these fills provide top seals on the flanks of the delta for some important offshore fields (Doust and Omatsola, 1990). 18 LOCATION AND METHODOLOGY Location Delta field is located...

Owoyemi, Ajibola Olaoluwa

2005-11-01

365

Evaluation of offshore stocking of Lake Trout in Lake Ontario  

USGS Publications Warehouse

Restoration stocking of hatchery-reared lake trout Salvelinus namaycush has occurred in Lake Ontario since 1973. In U.S. waters, fish stocked through 1990 survived well and built a large adult population. Survival of yearlings stocked from shore declined during 1990–1995, and adult numbers fell during 1998–2005. Offshore stocking of lake trout was initiated in the late 1990s in response to its successful mitigation of predation losses to double-crested cormorants Phalacrocorax auritus and the results of earlier studies that suggested it would enhance survival in some cases. The current study was designed to test the relative effectiveness of three stocking methods at a time when poststocking survival for lake trout was quite low and losses due to fish predators was a suspected factor. The stocking methods tested during 2000–2002 included May offshore, May onshore, and June onshore. Visual observations during nearshore stockings and hydroacoustic observations of offshore stockings indicated that release methods were not a direct cause of fish mortality. Experimental stockings were replicated for 3 years at one site in the southwest and for 2 years at one site in the southeast. Offshore releases used a landing craft to transport hatchery trucks from 3 to 6 km offshore out to 55–60-m-deep water. For the southwest site, offshore stocking significantly enhanced poststocking survival. Among the three methods, survival ratios were 1.74 : 1.00 : 1.02 (May offshore : May onshore : June onshore). Although not statistically significant owing to the small samples, the trends were similar for the southeast site, with survival ratios of 1.67 : 1.00 : 0.72. Consistent trends across years and sites indicated that offshore stocking of yearling lake trout during 2000–2002 provided nearly a twofold enhancement in survival; however, this increase does not appear to be great enough to achieve the 12-fold enhancement necessary to return population abundance to restoration targets.

Lantry, B.F.; O'Gorman, R.; Strang, T.G.; Lantry, J.R.; Connerton, M.J.; Schanger, T.

2011-01-01

366

How to select prime movers for offshore drilling, production  

Microsoft Academic Search

Offshore drilling is now done almost entirely with electric power and up to now has been dominated by the use of diesel-electric generating sets. Offshore drilling rigs use an average of about 7,000 hp for the drilling operation, and if the vessel is self-propelled, additional horsepower will be required for propulsion. There are 3 primary power requirements on drilling rigs:

1971-01-01

367

How to reduce sigma in offshore pipe fabrications  

SciTech Connect

The use of stainless steel for offshore oil and gas applications has increased dramatically over the last 20 years. Stainless steels fall into a number of categories depending on the composition and microstructure formed after heat treatment. Selection of pipe materials for offshore applications is dependent on the product to be carried. Austenitic and ferritic/austenitic (duplex) stainless steels are commonly used for process and utility piping systems offshore, whereas martensitic and ferritic are restricted to specific applications. Reference to sigma in offshore welding specifications has been mixed. Previously, the identification of sigma was wither not quoted or stated as being not permitted. However, achieving zero sigma content in duplex stainless steel welds and HAZs is questionable, particularly in steels and weld metals having a high chromium and molybdenum content. In the real world, how does one ensure that production welds performed offshore are free of sigma--or have a limited volume fraction of it--without having to constantly monitor welder performance? This review examines the difficulties and controls required to limit the presence of sigma in austenitic and duplex weld metals and HAZs associated with offshore piping and pipeline systems. Materials described here are those manufactured using contemporary steel making processes.

Still, J.

1999-11-01

368

Conceptual Model of Offshore Wind Environmental Risk Evaluation System  

SciTech Connect

In this report we describe the development of the Environmental Risk Evaluation System (ERES), a risk-informed analytical process for estimating the environmental risks associated with the construction and operation of offshore wind energy generation projects. The development of ERES for offshore wind is closely allied to a concurrent process undertaken to examine environmental effects of marine and hydrokinetic (MHK) energy generation, although specific risk-relevant attributes will differ between the MHK and offshore wind domains. During FY10, a conceptual design of ERES for offshore wind will be developed. The offshore wind ERES mockup described in this report will provide a preview of the functionality of a fully developed risk evaluation system that will use risk assessment techniques to determine priority stressors on aquatic organisms and environments from specific technology aspects, identify key uncertainties underlying high-risk issues, compile a wide-range of data types in an innovative and flexible data organizing scheme, and inform planning and decision processes with a transparent and technically robust decision-support tool. A fully functional version of ERES for offshore wind will be developed in a subsequent phase of the project.

Anderson, Richard M.; Copping, Andrea E.; Van Cleve, Frances B.; Unwin, Stephen D.; Hamilton, Erin L.

2010-06-01

369

[Spectral response analysis of offshore thin oil slicks].  

PubMed

Hyperspectral data of thin oil slicks have some spectral response characteristics, and an experiment of offshore thin oil slicks was designed to measure and analyze their reflectance by using ASD hyperspectral instrument. With the oil slick thickness changing, its color varied from rainbow sheen slick to fuchsine sheen slick, kelly sheen slick, aqua sheen slick, silver sheen slick and light sheen slick. The result suggested that different thin oil slicks have different characteristics, some thin oil slicks could change the reflectance at 440 nm which is the spectral absorption peak value of chlorophyll, and the best hyperspectral band to distinguish the different offshore thin oil slicks is located in the range between 350 and 440 nm. The reflectance of thin oil slicks is higher than that of seawater in the hyperspectral data range from 440 to 900 nm, but has no absorption or reflection characteristics compared to seawater's. It could not be detected in the range of near infrared from 900 to 2,500 nm of offshore thin oil slicks because of high noise, low signal and influence of the atmosphere. Finally, the spectral response theory of offshore thin oil slicks was analyzed, and the results indicated that the interference phenomenon of offshore thin oil slicks could add reflected light and change the reflectance of seawater, hence, increase the feasibility of offshore oil slick remote sensing. PMID:19626887

Lu, Ying-cheng; Tian, Qing-jiu; Qi, Xiao-ping; Wang, Jing-jing; Wang, Xiang-cheng

2009-04-01

370

Psychosocial burden among offshore drilling platform employees.  

PubMed

Conditions of work on offshore drilling platforms are particularly hard due to extreme environmental situations created both by nature and technological processes. Oil drilling workers employed on the open sea are potentially exposed to permanently high stress. Apart from the obvious objective factors affecting drilling platform employees, a great role in the general work-related stress level is played by the working conditions and work-related psychosocial factors, defined according to Karask's concept as demands, control, and social support. A total of 184 drill platform workers were examined using objective and subjective research methods. The level of subjective stress among drilling platform workers is lower than the level of objective stress and the stress resulting from prognoses related with specificity of work in extremely hard conditions (audit). The examinations of drilling platform workers reveal a positive role of stress in psychological adaptation, being a special case of the "work ethos" and attachment to the firm. In such investigations of work-related stress on drilling platforms, which are very specific workplaces, a multi-aspect character, sociological and economic aspects, organizational culture conditions in the firm, and a tendency to conceal ailments and the stress experienced should be taken into account. It is important to apply measures referring to at least three different types of evidence (objective demands, subjective stress, health problems reported). Otherwise, the result reflecting work-related stress may not be objective and far from the truth. PMID:21154303

Leszczy?ska, Irena; Je?ewska, Maria

2010-01-01

371

AORIS. Arctic & Offshore Technical Data System  

SciTech Connect

AORIS is a computerized information system to assist the technology and planning community in the development of Arctic oil and gas resources. In general, AORIS is geographically dependent and, where possible, site specific. The main topics are sea ice, geotechnology, oceanography, meteorology, and Arctic engineering, as they relate to such offshore oil and gas activities as exploration, production, storage, and transportation. AORIS consists of a directory component that identifies 85 Arctic energy-related databases and tells how to access them; a bibliographic/management information system or bibliographic component containing over 8,000 references and abstracts on Arctic energy-related research; and a scientific and engineering information system, or data component, containing over 800 data sets, in both tabular and graphical formats, on sea ice characteristics taken from the bibliographic citations. AORIS also contains much of the so-called grey literature, i.e., data and/or locations of Arctic data collected, but never published. The three components are linked so the user may easily move from one component to another. A generic information system is provided to allow users to create their own information systems. The generic programs have the same query and updating features as AORIS, except that there is no directory component.

Pastoria, G.A. [USDOE, Morgantown Energy Tech. Ctr., WV (United States)

1990-05-01

372

Geological characterization of selected offshore sand resources on the OCS, offshore Alabama, for beach nourishment  

USGS Publications Warehouse

Most Alabama Gulf and estuarine shoreline is undergoing long-term erosion; threatened shorelines will need programs of replenishment and maintenance if they are to be even temporarily stabilized. Highest priority beach replenishment areas include eastern Dauphin Island; west of Perdido Pass; and west of the inlet at Little Lagoon. There are no appropriate local onshore sand sources available for any such large scale program. Sediments in the Federal waters of the EEZ were evaluated for possible sources of sand for beach nourishment. Six lithofacies were delineated based on sediment characterization, spatial framework, and environment of deposition; of these, two (Clean Sands and Graded Shelly Sands) were deemed to have highest potential as beach nourishment sources. Five offshore target areas were delineated as potential sand sources. Criteria included sand aesthetics, estimated sand volume, and sand distributions. Preliminary environmental analyses included impacts of offshore sand dredging on shelf circulation; on economic activities; and on local benthic biota. Dredging may not significantly alter background wave regimes; however, data are insufficient to model effects of major storms on a modified shelf morphology. Dredging would avoid areas of current economic activity. There would like be little long-term impact on benthic biota in the target areas. Additional work will be required to confirm or refute these preliminary findings.

Davies, David, J.; Parker, Steven, J.; Smith, W. Everett

1993-01-01

373

Use of pollen and ancient DNA as conservation baselines for offshore islands in New Zealand.  

PubMed

Islands play a key role globally in the conservation of endemic species. Many island reserves have been highly modified since human colonization, and their restoration and management usually occur without knowledge of their prehuman state. However, conservation paleoecology is increasingly being recognized as a tool that can help to inform both restoration and conservation of island reserves by providing prehuman vegetation baselines. Many of New Zealand's mammal-free offshore islands are foci for biological diversity conservation and, like many islands in the Polynesian region, were deforested following initial human settlement. Therefore, their current restoration, replanting, and management are guided either by historic vegetation descriptions or the occurrence of species on forested islands. We analyzed pollen and ancient DNA in soil cores from an offshore island in northern New Zealand. The result was a 2000-year record of vegetation change that began >1200 years before human settlement and spanned 550 years of human occupation and 180 years of forest succession since human occupation ceased. Between prehuman and contemporary forests there was nearly a complete species turnover including the extirpation of a dominant conifer and a palm tree. The podocarp-dominated forests were replaced by a native but novel angiosperm-dominated forest. There is no modern analog of the prehuman forests on any northern New Zealand island, and those islands that are forested are dominated by angiosperms which are assumed to be climax forests. The pollen and DNA evidence for conifer- and palm-rich forests in the prehuman era challenge this climax forest assumption. Prehuman vegetation records can thus help to inform future restoration of degraded offshore islands by informing the likely rate and direction of successional change; helping to determine whether natural rates of succession are preferable to more costly replanting programs; and providing past species lists if restoration replanting is desired. PMID:24024911

Wilmshurst, Janet M; Moar, Neville T; Wood, Jamie R; Bellingham, Peter J; Findlater, Amy M; Robinson, James J; Stone, Clive

2014-02-01

374

Quantifying the benefits of a slender, high tip speed blade for large offshore wind turbiness  

NASA Astrophysics Data System (ADS)

An in-depth study has been completed to study the effects of slender, flexible blades in combination with high rotor speed operation on load mitigation, targeted at cost reductions of the structural components of large wind turbines, consequently lowering the levelized cost of energy. An overview of existing theory of sensitivity of turbine fatigue loading to the blade chord and rotor speed was created, and this was supplemented by a proposed theory for aboverated operation including the pitch controller. A baseline jacket-supported offshore turbine (7 MW) was defined, of which the blade was then redesigned to be more slender and flexible, at the same time increasing rotor speed. The blade redesign and optimisation process was guided by cost of energy assessments using a reduced loadset. Thereafter, a full loadset conform IEC61400-3 was calculated for both turbines. The expected support structure load reductions were affirmed, and it was shown that reductions of up to 18.5% are possible for critical load components. Cost modelling indicated that turbine and support structure CapEx could be reduced by 6%. Despite an energy production reduction of 0.44% related to the thicker airfoils used, the blade redesign led to a reduction in Cost of Energy.

Blonk, Lindert; Rainey, Patrick; Langston, David A. J.; Vanni, Francesco

2014-06-01

375

Sanaga Sud field - Offshore Cameroon, west Africa  

SciTech Connect

The Sanaga Sud field, offshore Cameroon, is located just northwest of the coastal town of Kribi in the northern part of the Douala basin. The discovery well, Sanaga Sud A-1, was drilled in 1979 to test an apparent horst block that contained a prominent horizontal seismic amplitude. The Douala basin is one of a series of passive margin basins located along the coastline of central and southern Africa, and formed during the rifting of Africa and South America during the Early Cretaceous. Drilling results showed that the amplitude was a gas/water contact. Two appraisal wells, SSA-2 and SSA-3, were drilled in 1981. All three wells tested gas and condensate. Total recoverable hydrocarbons for the field are estimated to be approximately 1 tcf of gas. The trap in this field is composed of tilted and rotated fault blocks composed of interbedded Aptian to Albian sandstones, siltstones, and shales. The fault blocks were truncated by erosion (breakup unconformity) and later buried by a considerable thickness of onlapping Upper Cretaceous and Tertiary shale. The late Albian erosional unconformity forms the top of the trap over most of the field. Geochemical studies indicate a Lower Cretaceous source for the hydrocarbons. The gross pay thickness averages 250 m with an average porosity of 23% and an average permeability of 142 md. Reservoir lithologies range from well-sorted, massive sandstones to poorly sorted fine sandstones and siltstones containing shaly laminations that are carbonaceous and micaceous. The field is located predominantly in Block PH-38, but part of the field is in the Londji concession. Mobil Producing Cameroon, Inc., is the operator of PH-38 and Total Exploration and Production Cameroon is the operator of the Londji concession.

Pauken, R.J. (Mobil New Exploration Ventures Co., Dallas, TX (USA))

1990-09-01

376

Cost management of medical equipment maintenance.  

PubMed

In the present study we combine Activity Based Costing (ABC) with a microprocess-based custom-made management system used to control of the medical equipment maintenance service performed by a clinical engineering group in a public health institution in Brazil. Results show the cost of service orders calculated through the allocation of the expenditure per cost center to activities performed during the year 2003. As this model can estimate how the activities affect profitability, managers can use ABC information to interpret possible strategies needed to investigate the viability of cost minimization. PMID:17271045

Rocha, L S; Bassani, J W M

2004-01-01

377

The costs of New Zealand pathology.  

PubMed

This paper focuses on methods for costing and funding hospital pathology services, and their relevance for government cost-control goals. Cost is an elusive, socially constructed phenomenon. As such it is context dependent and can be defined in different ways for different purposes. Misunderstanding of the contexts and purposes creates confusion and leads to contradictions and 'costly' mistakes for the New Zealand taxpayer. The cost to the taxpayer is not synonymous with the costs incurred in laboratories. The calculations of the latter, in a hospital setting, are so complex that often those responsible for running the cost systems do not understand the inscriptions produced by computer translations. In this paper, two costing initiatives potentially useful for non-competitive cost containment are outlined. The paper argues that the multiple funding methods resulting from New Zealand's public/private health care mix perpetuate perverse incentives that drive laboratory test volume escalation and discourage the full exploitation of potential economies-of-scale. The long-held objective of successive New Zealand governments to divert health funding away from hospitals and into preventive health care, is being subverted by the retention, at laboratory service level, of a competitive contracting system that was initially set up to contain test prices. The result for the New Zealand taxpayer is that costs are excessive, with millions of dollars passing to foreign-owned laboratories, which have incentives to take the tests, as well as the profits, offshore. PMID:12694950

France, Necia C; Francis, Graham A J; Lawrence, Stewart R

2003-05-01

378

Quantifying the hurricane risk to offshore wind turbines  

PubMed Central

The U.S. Department of Energy has estimated that if the United States is to generate 20% of its electricity from wind, over 50 GW will be required from shallow offshore turbines. Hurricanes are a potential risk to these turbines. Turbine tower buckling has been observed in typhoons, but no offshore wind turbines have yet been built in the United States. We present a probabilistic model to estimate the number of turbines that would be destroyed by hurricanes in an offshore wind farm. We apply this model to estimate the risk to offshore wind farms in four representative locations in the Atlantic and Gulf Coastal waters of the United States. In the most vulnerable areas now being actively considered by developers, nearly half the turbines in a farm are likely to be destroyed in a 20-y period. Reasonable mitigation measures—increasing the design reference wind load, ensuring that the nacelle can be turned into rapidly changing winds, and building most wind plants in the areas with lower risk—can greatly enhance the probability that offshore wind can help to meet the United States’ electricity needs. PMID:22331894

Rose, Stephen; Jaramillo, Paulina; Small, Mitchell J.; Grossmann, Iris; Apt, Jay

2012-01-01

379

30 CFR 585.116 - Requests for information on the state of the offshore renewable energy industry.  

...on the state of the offshore renewable energy industry. 585.116 Section...OF THE INTERIOR OFFSHORE RENEWABLE ENERGY AND ALTERNATE USES OF EXISTING...on the state of the offshore renewable energy industry. (a)...

2014-07-01

380

33 CFR 165.155 - Northville Industries Offshore Platform, Riverhead, Long Island, New York-safety zone.  

Code of Federal Regulations, 2010 CFR

... 2010-07-01 false Northville Industries Offshore Platform, Riverhead, Long...District § 165.155 Northville Industries Offshore Platform, Riverhead, Long...within a 500 yard radius of the Northville Industries Offshore Platform, Long Island,...

2010-07-01

381

Offshore 3D seismic, geochemical data integration, Main Pass project, Gulf of Mexico  

SciTech Connect

A bottom cable, 3D seismic, and shallow piston-core geochemical survey was conducted in summer 1992 on Main Pass Blocks 41 and 58 in the Gulf of Mexico. The 15.5 sq mile study area is in 11--24 m (36--79 ft) of water. Two hundred seventy-six shallow, 2 m piston-core sediment samples were collected using a uniform grid pattern on 400 m (1,320 ft) spaced intervals. Retrieved sediment samples were immediately sealed in metal 1 pt cans containing biocide solution. The purpose of the 3D seismic survey and geochemical offshore data integration project was three-fold: determine if near-shore, low-cost shallow piston-core sediment samples would be affected by fluvial contamination; evaluate the efficiency of a shallow-core, dense-grid sample design program in detecting thermogenic hydrocarbons at depth; evaluate the benefits of integrating offshore, shallow sediment geochemistry with 3D seismic data in developing a petroleum geological model. All 3D seismic survey data and block boundaries, as described in illustrations and figures, are only generally located within the Main Pass Area.

Belt, J.Q. Jr.; Rice, G.K. [GeoFrontiers Corp., Dallas, TX (United States)

1996-04-01

382

Offshore cathodic protection design, inspection, and computer modeling: Innovations from the 1980s  

SciTech Connect

Throughout the 1980s, equipment was used increasingly to monitor electric fields (EF) strength/current density in CP surveys of North Sea structures. Probes for remote-operated vehicle (ROV) and diver operations are used to measure simultaneously the potential and the EF strength at exposed steel, at typical stand-off anodes, at sacrificial bracelet anodes on pipelines, and so on. A sensitive system for such purposes is based on a pair of electrodes at the tips of a T-shaped spindle rotating at a known frequency. The 1980s saw several innovations in the field of offshore cathodic protection (CP). The increasing use of organic coatings on offshore structures is more or less a result of the need to reduce the number of anodes. In a design incorporating coatings, coating breakdown plays a key role. In later years, aluminum-coated structures have been introduced for submerged conditions. It seems that in the future, aluminum coatings will be used merely as barrier coatings. The bare aluminum coating has a very low current demand on the order or 10 mA/m[sup 2] or less. Emphasis is now on CP design by computer modeling and on data retrieved during inspections using sophisticated equipment and procedures. The effect of the innovations on traditional design, on design verification, and on retrofitting is discussed in relation to relevant cases and field work. Future applications that may give better insight into CP system performance at reduced cost are also suggested.

Gartland, P.O.; Strommen, R.D.; Osvoll, H.; Johnsen, R. (CorrOcean as, Trondheim (Norway))

1993-12-01

383

Troubleshooting Costs  

NASA Astrophysics Data System (ADS)

Seventy-six million cases of foodborne disease occur each year in the United States alone. Medical and lost productivity costs of the most common pathogens are estimated to be 5.6-9.4 billion. Product recalls, whether from foodborne illness or spoilage, result in added costs to manufacturers in a variety of ways. These may include expenses associated with lawsuits from real or allegedly stricken individuals and lawsuits from shorted customers. Other costs include those associated with efforts involved in finding the source of the contamination and eliminating it and include time when lines are shut down and therefore non-productive, additional non-routine testing, consultant fees, time and personnel required to overhaul the entire food safety system, lost market share to competitors, and the cost associated with redesign of the factory and redesign or acquisition of more hygienic equipment. The cost associated with an effective quality assurance plan is well worth the effort to prevent the situations described.

Kornacki, Jeffrey L.

384

Thermodynamic design of natural gas liquefaction cycles for offshore application  

NASA Astrophysics Data System (ADS)

A thermodynamic study is carried out for natural gas liquefaction cycles applicable to offshore floating plants, as partial efforts of an ongoing governmental project in Korea. For offshore liquefaction, the most suitable cycle may be different from the on-land LNG processes under operation, because compactness and simple operation are important as well as thermodynamic efficiency. As a turbine-based cycle, closed Claude cycle is proposed to use NG (natural gas) itself as refrigerant. The optimal condition for NG Claude cycle is determined with a process simulator (Aspen HYSYS), and the results are compared with fully-developed C3-MR (propane pre-cooled mixed refrigerant) JT cycles and various N2 (nitrogen) Brayton cycles in terms of efficiency and compactness. The newly proposed NG Claude cycle could be a good candidate for offshore LNG processes.

Chang, Ho-Myung; Lim, Hye Su; Choe, Kun Hyung

2014-09-01

385

Evidence of offshore lake trout reproduction in Lake Huron  

USGS Publications Warehouse

Six Fathom Bank-Yankee Reef, an offshore reef complex, was an historically important spawning area believed to represent some of the best habitat for the rehabilitation of lake trout Salvelinus namaycush in Lake Huron. Since 1986, lake trout have been stocked on these offshore reefs to reestablish self-sustaining populations. We sampled with beam trawls to determine the abundance of naturally reproduced age-0 lake trout on these offshore reefs during May-July in 1994-1998 and 2000-2002. In total, 123 naturally reproduced lake trout fry were caught at Six Fathom Bank, and 2 naturally reproduced lake trout fry were caught at nearby Yankee Reef. Our findings suggest that this region of Lake Huron contains suitable habitat for lake trout spawning and offers hope that lake trout rehabilitation can be achieved in the main basin of Lake Huron.

DeSorcie, Timothy J.; Bowen, Charles A., II

2003-01-01

386

Acoustic emission of offshore structures, attenuation - noise - crack monitoring  

SciTech Connect

No NDT crack detection methods have up to now proved to be the method which can overrule the others. We shall probably in the future in the offshore industry see a combination of various structure monitoring systems, remotely operated vehicles (ROV) with NDT-equipment and also the use of divers. The author believes that in some 5 - 10 years ROVs will perform much of the routine inspection, and mobile monitoring instrumentation will be concentrated to some hot spot areas, already detected defects or any repairs. The main areas for AE are monitoring of pressure vessels and fibre reinforced plastics. For application on offshore structures some fullscale trials have been performed (with practical problems) as well as some laboratory studies. Norwegian institutions seem to have a leading role today in the research of offshore applications. Norsk Hydro participated in a signature analysis project at Sintef/Veritas some years ago.

Lovaas, S.

1985-01-01

387

Industry decries sharp decline in U. S. offshore activity  

SciTech Connect

Roadblocks to offshore activity in the U.S. drew much of the spotlight at the 24th Offshore Technology Conference last week in Houston. Among OTC highlights included in this paper are: Two panels reviewed how federal leasing moratoriums and regulatory restrictions are reining U.S. offshore development. Conoco Inc.'s manager of exploration and development in Russia detailed the allure of giant and supergiant fields in the Commonwealth of Independent States and reviewed the status of the company's efforts to negotiate E and D deals with Russian partners. Minerals Management Service officials reviewed environmental challenges facing operators on the U.S. Outer Continental Shelf and new MMS inspection strategies in the Gulf of Mexico. The 1992 OTC Distinguished Achievement Award for companies went to Brazil's Petroleo Brasileiro SA for deepwater development records set with the 3 Marlim well in the Campos basin off Brazil.

Not Available

1992-05-11

388

In Brief: Environmental standards needed for offshore marine aquaculture  

NASA Astrophysics Data System (ADS)

The U.S. Congress should enact legislation that sets strong environmental standards for offshore marine aquaculture, the Marine Aquaculture Task Force recommended in a recent report. Aquaculture now accounts for about half of all seafood consumed in the world, and the industry is rapidly growing and expanding into regions offshore (more than 3 nautical miles from the coast) that are controlled by the federal government. The task force, which was organized by researchers from the Woods Hole Oceanographic Institution, examined the risks and benefits of marine aquaculture. They proposed that the U.S. National Oceanic and Atmospheric Administration be appointed the lead agency responsible for regulation of offshore marine aquaculture and for providing incentives for research and development. The main environmental standard proposed by the task force was to limit farming only to native species with local genetics unless the potential harm of escaped fish to local populations would be negligible.

Zielinski, Sarah

2007-01-01

389

Review of technology for Arctic offshore oil and gas recovery  

SciTech Connect

The technical background briefing report is the first step in the preparation of a plan for engineering research oriented toward Arctic offshore oil and gas recovery. A five-year leasing schedule for the ice-prone waters of the Arctic offshore is presented, which also shows the projected dates of the lease sale for each area. The estimated peak production rates for these areas are given. There is considerable uncertainty for all these production estimates, since no exploratory drilling has yet taken place. A flow chart is presented which relates the special Arctic factors, such as ice and permafrost, to the normal petroleum production sequence. Some highlights from the chart and from the technical review are: (1) in many Arctic offshore locations the movement of sea ice causes major lateral forces on offshore structures, which are much greater than wave forces; (2) spray ice buildup on structures, ships and aircraft will be considerable, and must be prevented or accommodated with special designs; (3) the time available for summer exploratory drilling, and for deployment of permanent production structures, is limited by the return of the pack ice. This time may be extended by ice-breaking vessels in some cases; (4) during production, icebreaking workboats will service the offshore platforms in most areas throughout the year; (5) transportation of petroleum by icebreaking tankers from offshore tanker loading points is a highly probable situation, except in the Alaskan Beaufort; and (6) Arctic pipelines must contend with permafrost, making instrumentation necessary to detect subtle changes of the pipe before rupture occurs.

Sackinger, W. M.

1980-08-01

390

75 FR 65309 - National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling  

Federal Register 2010, 2011, 2012, 2013

...Commission on the BP Deepwater Horizon Oil Spill and Offshore...Commission on the BP Deepwater Horizon Oil Spill and Offshore...root cause of the BP Deepwater Horizon explosion, fire...investigation into the Macondo well blowout....

2010-10-22

391

75 FR 39518 - National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling; Correction  

Federal Register 2010, 2011, 2012, 2013

...DEPARTMENT OF ENERGY National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling; Correction AGENCY: Office...12 and 13, 2010, of the National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling, (75 FR 37783)....

2010-07-09

392

33 CFR 100.719 - Annual Suncoast Offshore Challenge; Gulf of Mexico, Sarasota, FL.  

Code of Federal Regulations, 2011 CFR

...2011-07-01 false Annual Suncoast Offshore Challenge; Gulf of Mexico, Sarasota, FL. 100.719 Section 100.719 ...§ 100.719 Annual Suncoast Offshore Challenge; Gulf of Mexico, Sarasota, FL. (a) Regulated area. The regulated area...

2011-07-01

393

33 CFR 100.719 - Annual Suncoast Offshore Challenge; Gulf of Mexico, Sarasota, FL.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 false Annual Suncoast Offshore Challenge; Gulf of Mexico, Sarasota, FL. 100.719 Section 100.719 ...§ 100.719 Annual Suncoast Offshore Challenge; Gulf of Mexico, Sarasota, FL. (a) Regulated area. The regulated area...

2010-07-01

394

40 CFR 112.11 - Spill Prevention, Control, and Countermeasure Plan requirements for offshore oil drilling...  

Code of Federal Regulations, 2011 CFR

...2011-07-01 false Spill Prevention, Control...requirements for offshore oil drilling, production...Vegetable Oils (Including Oils from Seeds, Nuts, Fruits...Kernels) § 112.11 Spill Prevention, Control...requirements for offshore oil drilling,...

2011-07-01

395

40 CFR 112.11 - Spill Prevention, Control, and Countermeasure Plan requirements for offshore oil drilling...  

Code of Federal Regulations, 2013 CFR

...2013-07-01 false Spill Prevention, Control...requirements for offshore oil drilling, production...Vegetable Oils (Including Oils from Seeds, Nuts, Fruits...Kernels) § 112.11 Spill Prevention, Control...requirements for offshore oil drilling,...

2013-07-01

396

75 FR 21648 - MMS Information Collection Activity: 1010-0106, Oil Spill Financial Responsibility for Offshore...  

Federal Register 2010, 2011, 2012, 2013

...Collection Activity: 1010-0106, Oil Spill Financial Responsibility for Offshore...regulations under ``30 CFR Part 253, Oil Spill Financial Responsibility for Offshore...INFORMATION: Title: 30 CFR Part 253, Oil Spill Financial Responsibility for...

2010-04-26

397

40 CFR 112.11 - Spill Prevention, Control, and Countermeasure Plan requirements for offshore oil drilling...  

Code of Federal Regulations, 2012 CFR

...2012-07-01 false Spill Prevention, Control...requirements for offshore oil drilling, production...Vegetable Oils (Including Oils from Seeds, Nuts, Fruits...Kernels) § 112.11 Spill Prevention, Control...requirements for offshore oil drilling,...

2012-07-01

398

78 FR 25472 - Information Collection: Oil Spill Financial Responsibility for Offshore Facilities; Proposed...  

Federal Register 2010, 2011, 2012, 2013

...1010-0106] Information Collection: Oil Spill Financial Responsibility for Offshore...paperwork requirements for 30 CFR 553, Oil Spill Financial Responsibility for Offshore...1010-0106. Title: 30 CFR Part 553, Oil Spill Financial Responsibility for...

2013-05-01

399

40 CFR 112.11 - Spill Prevention, Control, and Countermeasure Plan requirements for offshore oil drilling...  

...2013-07-01 true Spill Prevention, Control...requirements for offshore oil drilling, production...Vegetable Oils (Including Oils from Seeds, Nuts, Fruits...Kernels) § 112.11 Spill Prevention, Control...requirements for offshore oil drilling,...

2014-07-01

400

78 FR 66763 - Information Collection: Oil Spill Financial Responsibility for Offshore Facilities; Submitted for...  

Federal Register 2010, 2011, 2012, 2013

...MMAA104000] Information Collection: Oil Spill Financial Responsibility for Offshore...paperwork requirements for 30 CFR 553, Oil Spill Financial Responsibility for Offshore...1010-0106. Title: 30 CFR 553, Oil Spill Financial Responsibility for...

2013-11-06

401

78 FR 47723 - Information Collection: Forms for Oil Spill Financial Responsibility for Offshore Facilities...  

Federal Register 2010, 2011, 2012, 2013

...Information Collection: Forms for Oil Spill Financial Responsibility for Offshore...paperwork requirements under 30 CFR 553, Oil Spill Financial Responsibility for Offshore...1010-0106. Title: 30 CFR 553, Oil Spill Financial Responsibility for...

2013-08-06

402

IRS's Offshore Voluntary Disclosure Program: 2009 Participation by State and Location of Foreign Bank Accounts.  

National Technical Information Service (NTIS)

This letter transmits information you requested on participants in the Internal Revenue Services (IRS) 2009 Offshore Voluntary Disclosure Program (OVDP), which offered incentives for taxpayers to disclose their offshore accounts and pay delinquent taxes, ...

2014-01-01

403

Exploring Flexible Strategies in Engineering Systems Using Screening Models Applications to Offshore Petroleum Projects  

E-print Network

to Offshore Petroleum Projects by Jijun Lin B.E., Mechanical Engineering, Beijing University of Aeronautics of Technology 2008. All rights reserved. Author Flexible Strategies in Engineering Systems Using Screening Models Applications to Offshore Petroleum

de Weck, Olivier L.

404

Floating offshore wind farms : demand planning & logistical challenges of electricity generation  

E-print Network

Floating offshore wind farms are likely to become the next paradigm in electricity generation from wind energy mainly because of the near constant high wind speeds in an offshore environment as opposed to the erratic wind ...

Nnadili, Christopher Dozie, 1978-

2009-01-01

405

Large-Scale Offshore Wind Power in the United States: Executive Summary  

SciTech Connect

This document provides a summary of a 236-page NREL report that provides a broad understanding of today's offshore wind industry, the offshore wind resource, and the associated technology challenges, economics, permitting procedures, and potential risks and benefits.

Musial, W.; Ram, B.

2010-09-01

406

The containment of cost of health care.  

PubMed

The cost of health care services has become increasingly important to society. Although hospital physicians are traditionally not involved in cost calculation and cost containment, they bear the consequences of budget restrictions. Since 1987, the reimbursement for clinical laboratories in Belgian hospitals has changed towards an envelope based system. Clinical biologists became aware that new resources can only be obtained mainly through cost reductions. But to contain cost, one must understand how it is generated. Activity based costing (ABC) is a new technique developed for strategic management in the industry. By analyzing the cost of all activities involved in the production process, this technique is very well suited to calculate cost in service organizations like medical departments. Using the principles of ABC, we performed a detailed analysis of the cost of a microbiology laboratory, determining the full cost as well as the proportion of each cost sorts (materials, labor, ...) for each laboratory test. This analysis illustrates that cost can effectively be calculated in a hospital department and guide doctors in the evaluation of alternative medical techniques, investments in automation, and the decision on medical priorities. In our opinion, cost containment of hospital care must start from within each medical department. Responsibility and participation of physicians in the discussion on budget allocation are essential in the process of cost containment of the hospital health care. PMID:8686402

Gordts, B

1996-04-01

407

Acceptance criteria for risk in offshore construction projects  

SciTech Connect

The Norwegian Petroleum Directorate (NPD) state in their Regulation for Risk Analysis that the Operator shall form the acceptance criteria for the risk analysis. This applies to both the construction and operating phases. The philosophy is that the risk should be kept as low as reasonable practicable (ALARP). This paper will discuss what form the criteria for an offshore construction project should have, what hazards the criteria should be measured against and how one should proceed to obtain acceptable risk levels. An application of the criteria for an offshore construction project will be discussed.

Rettedal, W.; Gudmestad, O.T. [Rogaland Univ. Centre, Stavanger (Norway)

1995-12-31

408

Structural option design in JZ20-2 offshore project  

SciTech Connect

In the JZ20-2 Project, ice and earthquakes are the main loads which determine the member sizes of offshore structures. UQ and W platforms are located at same field. The vertical loads of an UQ platform are about two times as much as a W platform, but structural steel weight used by two platforms is about the same. This paper describes the results to be acquired and how to determine reasonably the standard of ice load and the resistance to earthquakes with less stiffness and large mass. This paper presents some useful principles and enlightenment for offshore engineering.

Wang Lianqi [COODEC, Beijing (China)

1993-12-31

409

A service-costing framework for logistics companies and a case study  

Microsoft Academic Search

Purpose – The purpose of this paper is to provide a service-costing framework for logistics companies that are providing land transportation via trucks. Design\\/methodology\\/approach – Several costing methodologies are combined around activity-based costing and process modeling and a framework is developed. The developed framework is applied to a logistics company to track its service costs. Findings – After the case

2007-01-01

410

Outsourcing (the) economy to India: utopian and dystopian discourses of offshoring  

Microsoft Academic Search

Purpose – The purpose of this paper is to examine critically both utopian and dystopian discourses of offshoring so that a more considered, nonetheless theoretically informed, view of the global offshore phenomenon can be formed. Design\\/methodology\\/approach – Drawing upon some preliminary research on offshoring ventures from the UK to India, and the extant literature, the practice of business process outsourcing

David Knights; Beverley Jones

2007-01-01

411

Importance of thermal effects and sea surface roughness for offshore wind resource assessment  

E-print Network

National Laboratory, Roskilde, Denmark Abstract The economic feasibility of offshore wind power utilisation sites. The first large offshore wind farms are currently being built in several countries in EuropeImportance of thermal effects and sea surface roughness for offshore wind resource assessment

Heinemann, Detlev

412

Demonstrating EO enabled assessment of sediment concentrations near offshore wind farms  

Microsoft Academic Search

The present study is a feasibility study on using earth observation data (EO) to assess changes in sediment concentrations around an offshore wind farm developed by the company Scira Offshore Energy Ltd (hereafter Scira). Offshore measurements were made from a buoy and an Acoustic Wave and Current meter (AWAC) sounding device around the study area during the period December 2004

L. B. Hansen; M. S. Rasmussen

413

33 CFR 147.T08-849 - DEEPWATER HORIZON Mobile Offshore Drilling Unit Safety Zone.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 2010-07-01 false DEEPWATER HORIZON Mobile Offshore Drilling Unit Safety...SAFETY ZONES § 147.T08-849 DEEPWATER HORIZON Mobile Offshore Drilling Unit Safety...safety zone. This area surrounds the DEEPWATER HORIZON, a Mobile Offshore Drilling...

2010-07-01

414

75 FR 32119 - Proposed Amendment of the Pacific High and Low Offshore Airspace Areas; California  

Federal Register 2010, 2011, 2012, 2013

...Amendment of the Pacific High and Low Offshore Airspace Areas; California...to amend the Pacific High and Low Offshore Airspace Areas by providing...describes the application procedure. History In October, 2009, the Los Angeles...modification of the Pacific High and Low Offshore Airspace Areas is...

2010-06-07

415

Outsourcing and Offshoring of Business Services: Challenges to Theory, Management and Geography of Innovation  

Microsoft Academic Search

Massini S. and Miozzo M. Outsourcing and offshoring of business services: challenges to theory, management and geography of innovation, Regional Studies. Drawing on an original survey, this paper discusses the trends and challenges posed by the outsourcing and offshoring of business services. It documents and analyses the increasing offshoring of business services (administrative services, call centres, information technology services, procurement,

Silvia Massini; Marcela Miozzo

2010-01-01

416

Project GOSAP (PP-USA.1): Gulf offshore satellite applications project  

NASA Technical Reports Server (NTRS)

The Gulf offshore satellite applications project (GOSAP) was carried out in order to determine how best to use remote sensing technology to address offshore problems and operations faced by marine engineering organizations. The potentials of satellite-based offshore exploration, ocean engineering and environmental applications using combined satellite and airborne measurements are investigated. The applications include the detection of oil slicks.

Biegert, E. K.; Baker, R. N.; Sailor, R. V.; Shaudt, K. E.; MacDonald, I. R.; Tapley, B.; Shum, C. K.; Amos, J.; Berry, J. L.; Hess, J.

1996-01-01

417

“Slicing the Value Chain” Internationally: Empirical Evidence on the Offshoring Strategy by French Firms  

Microsoft Academic Search

This paper analyzes the offshoring strategy from an empirical view. It focuses on a set of models, extracts a set of testable hypothesises and creates a suitable set of variable to test their validity. This analysis is based on a data set from French manufacturing firms that provides detailed information on the offshoring strategy. The choice of offshoring modes is

Liza Jabbour

418

Wave Synchronizing Crane Control during Water Entry in Offshore Moonpool Operations  

E-print Network

1 Wave Synchronizing Crane Control during Water Entry in Offshore Moonpool Operations strategy for active control in heavy-lift offshore crane operations is suggested, by introducing a new con industrial heave compensation systems applied to offshore cranes or module handling systems (MHS) have been

Johansen, Tor Arne

419

GEOL 467/667/MAST 667 -GEOLOGICAL ASPECTS OF OFFSHORE WIND PROJECTS **TENTATIVE** COURSE SYLLABUS  

E-print Network

wind turbine foundations; 2) A review of existing, or under construction, offshore wind projects; and 3 - Content exams, one focusing on sediments, their geotechnical properties and offshore wind turbine foundations and one focusing on the coastal geologic history of a region and its relevance to offshore wind

Firestone, Jeremy

420

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

Federal Register 2010, 2011, 2012, 2013

...Compliance for the Offshore Supply Vessel BUMBLE BEE AGENCY: Coast Guard, DHS. ACTION: Notice...issued for the offshore supply vessel BUMBLE BEE as required by 33 U.S.C. 1605(c...issued for the offshore supply vessel BUMBLE BEE, O.N. 1218416. Full compliance...

2010-03-16

421

Photoresponses of larval Atlantic menhaden ( Brevoortia tyrannus Latrobe) in offshore and estuarine waters: implications for transport  

Microsoft Academic Search

This study tested the hypothesis that Atlantic menhaden (Brevoortia tyrannus Latrobe) larvae have separate behaviors in offshore and estuarine waters that are evoked by chemical cues in these waters. Atlantic menhaden spawn offshore, and larvae are transported shoreward where they metamorphose after entering estuaries. Field studies suggest that during the day larvae are at moderate depths offshore and less abundant

Richard B. Forward; John S. Burke; Daniel Rittschof; James M. Welch

1996-01-01

422

St h ti d i l i fStochastic dynamic analysis of offshore wind turbines  

E-print Network

1 St h ti d i l i fStochastic dynamic analysis of offshore wind turbines ­ with emphasis on fatigue analysis of offshore bottom-fixed wind turbines · Modelling and dynamic analysis of floating wind turbines ­ Stochastic dynamic analysis of offshore wind turbines; mooring system for wave energy converters · 2010 8

Nørvåg, Kjetil

423

| | | | |Monday, July 16, 2012 Three Northeast Ohio offshore wind power projects  

E-print Network

| | | | |Monday, July 16, 2012 Home Three Northeast Ohio offshore wind power projects secure federal money By SCOTT SUTTELL 1:52 pm, September 9, 2011 Three Northeast Ohio offshore wind power." Three Northeast Ohio offshore wind power projects secure federal money... http

Rollins, Andrew M.

424

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

Federal Register 2010, 2011, 2012, 2013

...Compliance for the Offshore Supply Vessel ROSS CANDIES AGENCY: Coast Guard, DHS. ACTION...issued for the offshore supply vessel ROSS CANDIES as required by 33 U.S.C. 1605(c...issued for the offshore supply vessel ROSS CANDIES, O.N. 1222260. Full compliance...

2010-06-09

425

75 FR 26783 - Certificate of Alternative Compliance for the Offshore Supply Vessel PEYTON CANDIES  

Federal Register 2010, 2011, 2012, 2013

...for the Offshore Supply Vessel PEYTON CANDIES AGENCY: Coast Guard, DHS. ACTION...for the offshore supply vessel PEYTON CANDIES as required by 33 U.S.C. 1605(c...for the offshore supply vessel PEYTON CANDIES, O.N. 1219737. Full compliance...

2010-05-12

426

75 FR 26783 - Certificate of Alternative Compliance for the Offshore Supply Vessel JOSHUA CANDIES  

Federal Register 2010, 2011, 2012, 2013

...for the Offshore Supply Vessel JOSHUA CANDIES AGENCY: Coast Guard, DHS. ACTION...for the offshore supply vessel JOSHUA CANDIES as required by 33 U.S.C. 1605(c...for the offshore supply vessel JOSHUA CANDIES, O.N. 1219732. Full compliance...

2010-05-12

427

Prof Choo in Standing Committee of International Ship and Offshore Structures Congress  

E-print Network

Prof Choo in Standing Committee of International Ship and Offshore Structures Congress WITH SINGAPORE newly elected to the International Ship and Offshore Structures Congress (ISSC), Prof Choo Yoo: Committee V.4 ­ Ocean Wave & Wind Energy Utilisation #12; The 17th International Ship and Offshore

Chaudhuri, Sanjay

428

An Examination of the Effects of Offshore and Outsourced Development on the Delegation of  

E-print Network

towards an expedient distribution of responsibilities. The case studies embody varying degrees of offshoreAn Examination of the Effects of Offshore and Outsourced Development on the Delegation.edu Abstract. Offshore and outsourced development are the latest facts of life of professional software

van Engelen, Robert A.

429

Quantifying Errors Associated with Satellite Sampling of Offshore Wind S.C. Pryor1,2  

E-print Network

: Remote sensing. Weibull distribution. Error bounds. Uncertainty analyses. 1. Introduction a. Offshore1 Quantifying Errors Associated with Satellite Sampling of Offshore Wind Speeds S.C. Pryor1,2 , R are of sufficient magnitude to render current use of remote sensing for generating power estimations for offshore

430

Complicating Utopian and Dystopian Views of Automation: An Investigation of the Work and Knowledge Involved in the Call Center Offshoring Industry in India  

Microsoft Academic Search

Offshoring is motivated by the relocation and standardization of organizational services to remote locations—typically the\\u000a so-called developing nations—in order to achieve substantial cost efficiencies. Standardized business practices, aided by\\u000a information technologies, are assumed to mobilize and recover the service practices in these new contexts. In this paper,\\u000a we examine the boundary objects and boundary work involved in call center work.

Paul R. Devadoss; Mike W. Chiasson

431

U.S. Energy Demand, Offshore Oil Production and  

E-print Network

U.S. Energy Demand, Offshore Oil Production and BP's Macondo Well Spill Tad Patzek, Petroleum that run the U.S. Complexity, models, risks Gulf of Mexico's oil and gas production Conclusions ­ p.3/4 #12;Summary of Conclusions. . . The global rate of production of oil is peaking now, coal will peak in 2

Patzek, Tadeusz W.

432

Critical issues in large offshore wind farm design and operation  

Microsoft Academic Search

Interest in the realization of offshore wind farms is growing even in zones where exploitation was considered unprofitable so far. For this reason, studies are needed in order to design suitable methodologies aiming to investigate economic feasibility and control strategies both in steady-state and dynamic conditions. In this work, the analysis of steady-state behaviour and investment concerns of electric system

M. Dicorato; G. Forte; P. Pugliese; M. Trovato; F. Pallotti

2009-01-01

433

Offshore wind farm connection with low frequency AC transmission technology  

Microsoft Academic Search

This paper investigates the feasibility of using the low frequency AC transmission (LFAC) system, e.g. fraction of 50 Hz or 60 Hz, for connecting the large offshore wind farm to the grid by modelling and simulation. The LFAC system improves the transmission capacity and distance compared to the conventional AC solution at the nominal frequency, e.g. 50 Hz or 60

Nan Qin; Shi You; Zhao Xu; V. Akhmatov

2009-01-01

434

Power flow calculation for power system including offshore wind farm  

Microsoft Academic Search

This paper proposes a simplified steady-state equivalent model of asynchronous generators. With regard to the relationship between the wind velocity and generator's active power, terminal voltage, reactive power, as well as the slip ratio, a method to calculate the power flow for power system including large-scale offshore wind farm is then proposed, using the DLL files called by UPI of

Zhang Wei; Wei Zhinong; Sun Guoqiang

2009-01-01

435

ORIGINAL PAPER Review of Methodologies for Offshore Wind Resource  

E-print Network

. Moving offshore presents particular challenges to the wind energy industry but also many advantages (IEA energy development relies to some extent on accurate prediction of wind resources, but since installing. Sempreviva Wind Energy Division, Risø National Laboratory for Sustainable Energy, Technical University

Pryor, Sara C.

436

OFFSHORE OIL AND GAS EXTRACTION - AN ENVIRONMENTAL REVIEW  

EPA Science Inventory

Reported are the results of an environmental review of emission sources and emissions associated with U.S. offshore oil and gas exploration, drilling, and production. In the information reviewed, greatest environmental concern was with accidental spills of oil that can occur duri...

437

Mathematical Modeling for Shakedown Analysis of Offshore Structures  

Microsoft Academic Search

The shakedown analysis process of an offshore structure having elastic-plastic material presented. The finite element model of the structure has been developed first, and then a simple method has been applied for shakedown analysis using matrix tool. Simplifying the relationships together with applying the theory concepts of shakedown analysis is one of the characteristics of the presented method for practical

Mohammad Javad Fadaee; Hamed Saffari; Ramin Tabatabaei

2007-01-01

438

Offshore energy boom providing opportunities outside Medicare's umbrella.  

PubMed

Physicians upset by limits imposed by the medicare system are getting a chance to spread their entrepreneurial wings on the East Coast. A boom in offshore exploration, led by Newfoundland's massive Hibernia project, has led to numerous business opportunities for physicians. PMID:9757185

Robb, N

1998-09-01

439

Bank Secrecy, Illicit Money and Offshore Financial Centers  

Microsoft Academic Search

International and national institutions regularly put pressure on offshore Financial centers and their clients to enforce compliance with anti-money laundering regulations and that in spite of the existence of bank secrecy. This paper discusses the winners and losers of such policies. Surprisingly, aggregate profits and tax revenues can increase under those policies. In addition, we show that o¤shore banks can

Pierre M. Picard; Patrice Pieretti

2008-01-01

440

Making an Open Source Case for Offshoring Commentary  

Microsoft Academic Search

The paper is an account of the possibilities that expanded international offshoring could have for the Free\\/Libre and Open Source Software (FLOSS) movement. Based on existing survey data, this paper argues that at a numeric level, the continued spread of software development jobs into new areas of the world could create the foundation from which expanded international involvement in FLOSS

C. O'Donnell

2007-01-01

441

Offshore Oil Drilling: Buying Energy Independence or Buying Time?  

ERIC Educational Resources Information Center

This article addresses the issues and concerns about offshore oil drilling in the United States. The demand for energy is going up, not down, and for a long time, even as alternative sources of energy are developed, more oil will be needed. The strongest argument against drilling is that it could distract the country from the pursuit of…

Baird, Stephen L.

2008-01-01

442

Managing Offshore Branch Campuses: An Analytical Framework for Institutional Strategies  

ERIC Educational Resources Information Center

The aim of this article is to develop a framework that encapsulates the key managerial complexities of running offshore branch campuses. In the transnational higher education (TNHE) literature, several managerial ramifications and impediments have been addressed by scholars and practitioners. However, the strands of the literature are highly…

Shams, Farshid; Huisman, Jeroen

2012-01-01

443

Sliding mode control for offshore steel jacket platforms  

Microsoft Academic Search

This paper is concerned with sliding mode control of offshore steel jacket platforms subject to nonlinear wave-induced forces. Two sliding mode control schemes are proposed to reduce the oscillation amplitudes of the platforms. One scheme is that a conventional sliding mode controller (SMC) is designed, under the SMC the oscillation amplitudes of the platform are effectively reduced; however, a very

Bao-Lin Zhang; Qing-Long Han; Xian-Ming Zhang; Xinghuo Yu

2010-01-01

444

Pitting corrosion on weld joints of offshore structure jackets  

SciTech Connect

During underwater inspection, pitting corrosion was observed on weld joints of offshore structure jackets. A detailed investigation was carried out to find the cause of the pitting. Pitting and galvanic corrosion studies and cathodic protection experiments were carried out in synthetic seawater and in 3.5% sodium chloride (NaCl) solution. Field exposure studies also were carried out. Remedial measures are described.

Anto, P.F.

2000-04-01

445

Ris-R-1298(EN) Validation of Satellite SAR Offshore  

E-print Network

of high oro- graphy at Corsica. At least 60-70 randomly selected satellite images are re- quiredRisø-R-1298(EN) Validation of Satellite SAR Offshore Wind Speed Maps to In-Situ Data, Microscale- cision and accuracy of the satellite-derived ERS-2 SAR wind products in off- shore regions. The overall

446

Linearized Dynamic Stability of Barges for Transportation of Offshore Structure  

Microsoft Academic Search

A method to evaluate dynamic stability of towed barges for transportation of offshore structure has been described. The general condition occurs when the barge is being towed in a restricted (narrow) and shallow canal. A state-of-the-art approach of the linearized formulation of this physical problem is adopted. The solution to the problem and a scheme to test dynamic stability are

P. Mukhopadhyay

1984-01-01

447

Clinical Trials Offshored: On Private Sector Science and Public Health  

Microsoft Academic Search

This article addresses the offshoring of clinical trials to middle- and low-income countries, and the complicated ways in which they have become integral to public health and quality of care in these contexts. I focus on the operations of United States-based contract research organizations (CROs), which make up a specialized global industry focusing on the recruitment of human subjects and

Adriana Petryna

2007-01-01

448

Onshore planning for offshore oil: lessons from Scotland  

Microsoft Academic Search

This book examines the physical, social, and economic effects onshore that accompany oil development offshore, namely: (1) the phases of oil development--exploration, platform construction, supply base development, pipeline construction, drilling, processing, and transportation--each of which generates its own impacts in its own time frame; many of the impacts are felt surprisingly early; (2) the strains placed on planning systems as

P. L. Baldwin; M. F. Baldwin

1975-01-01

449

Offshore Hedge Funds: Survival and Performance 1989-1995  

Microsoft Academic Search

We examine the performance of the offshore hedge fund industry over the period 1989 through 1995 using a database that includes defunct as well as currently operating funds. The industry is characterized by high attrition rates of funds and little evidence of differential manager skill. We develop endogenous style categories for relative fund performance measures and find that repeat-winner and

Stephen J. Brown; William N. Goetzmann; Roger G. Ibbotson

1997-01-01

450

Predictive diagnosis for offshore wind turbines using holistic condition monitoring  

Microsoft Academic Search

This paper presents the role of SeeByte's RECOVERY system within the wind energy industry, with specific focus on an offshore scenario. The current generation of condition monitoring systems (CMS) in relation to wind energy are generally provided by turbine manufacturers, or have been adapted from other industries. These systems have a propensity to focus explicitly on individual parts of the

E. Miguela?ñez

2010-01-01

451

Assessment of turbulence by high-order statistics. Offshore example.  

E-print Network

Assessment of turbulence by high-order statistics. Offshore example. Allan Morales Joachim Peinke-Normal probability den- sity functions. We also show that statistical struc- ture corresponding to homogeneous minute wind speed average was done. In the allan.morales@uni-oldenburg.de joachim.peinke@forwind.de Table

Peinke, Joachim

452

Quantifying the Benefits of Combining Offshore Wind and Wave Energy  

NASA Astrophysics Data System (ADS)

For many locations the offshore wind resource and the wave energy resource are collocated, which suggests a natural synergy if both technologies are combined into one offshore marine renewable energy plant. Initial meteorological assessments of the western coast of the United States suggest only a weak correlation in power levels of wind and wave energy at any given hour associated with the large ocean basin wave dynamics and storm systems of the North Pacific. This finding indicates that combining the two power sources could reduce the variability in electric power output from a combined wind and wave offshore plant. A combined plant is modeled with offshore wind turbines and Pelamis wave energy converters with wind and wave data from meteorological buoys operated by the US National Buoy Data Center off the coast of California, Oregon, and Washington. This study will present results of quantifying the benefits of combining wind and wave energy for the electrical power system to facilitate increased renewable energy penetration to support reductions in greenhouse gas emissions, and air and water pollution associated with conventional fossil fuel power plants.

Stoutenburg, E.; Jacobson, M. Z.

2009-12-01

453

Offshore Petroleum Resource Development and Marine Mammals: A Review and  

E-print Network

Offshore Petroleum Resource Development and Marine Mammals: A Review and Research Recommendations J with all phases of petroleum exploration and production. The physical, physiological, and behavioral ef to cause acute toxicity. However, the long- term effects of accumulation of petroleum basic data needed

454

Articulation work in small-scale offshore software development projects  

Microsoft Academic Search

The paper describes coordination practices of small and medium enterprises (SME) that outsourced parts of their software development to offshore vendors. Our case study in a German company shows that the geographic distribution of knowledge and expertise requires continuous informal coordination across the teams. Such practices can be described as a combination of formal coordination and informal articulation work in

Alexander Boden; Bernhard Nett; Volker Wulf

2008-01-01

455

Jurassic faults of southwest Alabama and offshore areas  

Microsoft Academic Search

Four fault groups affecting Jurassic strata occur in the southwest and offshore Alabama areas. They include the regional basement rift trend, the regional peripheral fault trend, the Mobile graben fault system, and the Lower Mobile Bay fault system. The regional basement system rift and regional peripheral fault trends are distinct and rim the inner margin of the eastern Gulf Coastal

R. M. Mink; B. H. Tew; B. L. Bearden; E. A. Mancini

1991-01-01

456

Using satellite data for mapping offshore wind resources and wakes  

E-print Network

Energy Department, Denmark Copenhagen Offshore Wind, Conference and Exhibition 26-28 October 2005SectionRadarCrossNormalized = Physics Ocean surface roughens by wind interaction: Capillary and short gravity waves are generated. More;Conclusions · Satellite ocean wind from many satellites are used to calculate: mean wind speed, Weibull

457

Supporting Off-Shore Students: A Preliminary Study  

ERIC Educational Resources Information Center

This paper reports on the first part of a recent research study into current initiatives to support the learning of non-English speaking background (NESB) transnational students in Asia who are studying off-shore at Australian universities. Learning support and development staff in 12 universities were surveyed using a questionnaire. The survey…

Hussin, Virginia

2007-01-01

458

Higher Skills and the Knowledge Economy: The Challenge of Offshoring  

ERIC Educational Resources Information Center

Recent economics literature on offshoring highlights the trend towards the relocation of high-skill jobs to emerging economies. This evolution presents a challenge to the established knowledge economy discourse on which the relationship between higher education, higher skills, higher productivity and higher incomes has been based. This paper…

Craig, John; Gunn, Andrew

2010-01-01

459

Transnational Higher Education: Offshore Campuses in the Middle East  

ERIC Educational Resources Information Center

This paper maps the landscape of transnational higher education in the Middle East, focusing in particular on the recent expansion of satellite, branch, and offshore educational institutions and programs that foreign institutions have set up in the region. Of the estimated 100 branch campuses currently operating worldwide, over one-third are in…

Miller-Idriss, Cynthia; Hanauer, Elizabeth

2011-01-01

460

Nepheloid layer distribution in the Benguela upwelling area offshore Namibia.  

E-print Network

Nepheloid layer distribution in the Benguela upwelling area offshore Namibia. Maik Inthorna of nepheloid layers across the outer shelf and upper continental slope off Namibia was studied during a cruise to relate the nepheloid layers to hydrographic structures. The particle content of surface water

Mohrholz, Volker

461

Ris National Laboratory Satellite SAR applied in offshore wind  

E-print Network

in the North Sea, International Journal of Remote Sensing (accepted) CMOD4 Linear regression R2 SE N y=0.932x-0 sampling of offshore wind speeds realistically represent wind speed distributions, Journal of Applied associated with sampling strategy and distribution fitting methods, Journal of Applied Meteorology 43

462

Hard Bottom Substrate Monitoring Horns Rev Offshore Wind Farm  

E-print Network

#12;Hard Bottom Substrate Monitoring Horns Rev Offshore Wind Farm 2004 Survey Report No. 1 March : Simon B. Leonhard #12;Horns Rev. Hard Bottom Substrate Monitoring 2004 Survey Report No. 1. Page 3 Doc ........................................................................................................................ 15 #12;Horns Rev. Hard Bottom Substrate Monitoring 2004 Survey Report No. 1. Page 4 Doc. No. 2438

463

4. LIGHTHOUSE SITE OFFSHORE AT MOUTH OF FEDERAL CHANNEL, AND ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

4. LIGHTHOUSE SITE OFFSHORE AT MOUTH OF FEDERAL CHANNEL, AND WEST END OF NORTH TRAINING WALL, LOOKING SOUTHEAST FROM THE WATER TOWARD THE BUILDINGS OF THE FORMER ALAMEDA NAVAL AIR STATION, ALONG THE SOUTH SIDE. - Oakland Harbor Training Walls, Mouth of Federal Channel to Inner Harbor, Oakland, Alameda County, CA

464

Offshore energy boom providing opportunities outside medicare's umbrella  

PubMed Central

Physicians upset by limits imposed by the medicare system are getting a chance to spread their entrepreneurial wings on the East Coast. A boom in offshore exploration, led by Newfoundland's massive Hibernia project, has led to numerous business opportunities for physicians. PMID:9757185

Robb, N

1998-01-01

465

A drilling model for young offshore Louisiana and Texas trends  

SciTech Connect

A new type of model specifically designed to aid in the planning and drilling of young offshore Louisiana and Texas wells is presented. The model is composed of functions to represent changing drilling mechanics, as well as changing drillabilities with respect to depth, area, and formation type.

Smalling, D.A.; Meyers, R.L. II

1988-06-01

466

Electric power from offshore wind via synoptic-scale interconnection  

E-print Network

Electric power from offshore wind via synoptic-scale interconnection Willett Kemptona,1 , Felipe M) World wind power resources are abundant, but their utilization could be limited because wind fluctuates rather than providing steady power. We hypothesize that wind power output could be stabilized if wind

Firestone, Jeremy

467

Proceedings of the 22nd annual offshore technology conference  

SciTech Connect

This book contains the proceedings of the 22nd annual offshore technology conference, Volume 3. Topics covered include: Innovation in concrete gravity platform substructures; the Ravensburn north platform and beyond; Development of the ROV - replaceable control valves; Structure-induced seafloor scour; Vessel impact design for steel jackets; and A new approach for finger storage slug catcher design.

Not Available

1990-01-01

468

Floating OffShore Wind Turbines for Shallow waters  

Microsoft Academic Search

Bottom mounted Offshore wind turbines seem to have a promising future but they are restricted to shallow waters such as in Northern Europe. Many projects are planned or are in the phase of construction in the North Sea and the Baltic Sea. All projects planned to date are in water depths of up to approximately 25 m. The research project

B. H. Bulder; A. Henderson; R. H. M. Huijsmans; J. T. G. Pierik; E. J. B. Snijders; G. H. Wijnants; M. J. Wolf

2002-01-01

469

Integrated monitoring of offshore wind turbines – requirements, concepts and experiences  

Microsoft Academic Search

Wind turbines on offshore sites (OWECs) are subjected to combined loads from wind and waves. These dynamic loads, with a frequency content within the range of the natural frequencies of the structures, cause fatigue-effective stresses in the substructures of wind turbines. Therefore, the examination of natural frequencies is an important part within the design process of wind turbines. The quality

Rolf Günter Rohrmann; Sebastian Thöns; Werner Rücker

2010-01-01

470

Namibia, practically unexplored, may have land, offshore potential  

SciTech Connect

Namibia became an independent nation in March 1990. Lying in southwestern Africa, it has an onshore area of 823,144 sq km with a coastline some 1,400 km long (Figs. 1,2). The offshore area, out to the 1,000 m isobath, is 340,000 sq km. This is equal to the combined offshore areas of Gabon, Congo, Zaire, and Angola. The hydrocarbon potential of this vast region is virtually unexplored because of political uncertainties that affected the country in the years until independence. Now, however, the country has a democratically elected government, political stability, and a positive and realistic attitude towards foreign investment. The authors describe the recently enacted petroleum legislation, taxation system, and hydrocarbon potential of Namibia. A licensing round (both offshore and onshore) has just been announced and will close Nov. 1, 1991. The new onshore and offshore blocks are shown. Through the activities of Namcor, the national petroleum corporation, and Intera ECL, Namibia is emerging as one of the few remaining countries of the world where truly giant fields could be found.

Light, M.P.R. (Intera ECL Petroleum Technologies, Henley-on-Thames (GB)); Shimutwikeni, N. (National Petroleum Corp. of Namibia, Windhoek, Namibia (ZA))

1991-04-08

471

Reverse Offshore Outsourcing Experiences in Global Software Engineering Projects  

Microsoft Academic Search

In this paper, we examine a case in reverse offshore outsourcing, in which a software company in Western Europe provided services to a bank subsidiary in Asia as part of a global software reengineering project. The bank selected the software company, among other reasons, because it could provide the service more cheaply than competing software companies in other geographic regions.

Ben Wilson; Kris Ceuppens

2011-01-01

472

Access to and Usage of Offshore Liberty Ship  

E-print Network

Access to and Usage of Offshore Liberty Ship Reefs in Texas ROBERT B. DITTON, ALAN R. GRAEFE, ANTHONY J. FEDLER, and JOHN D. SCHWARTZ Sinking aLiberty Ship offthe Texas coast. Texas Coastal and Marine for surplus Liberty Ships and to use these ships for establish- ABSTRACT-Allhou[?h arlificial reefs have been

473

Distribution of oil and gas fields in China offshore basins  

Microsoft Academic Search

China offshore basins have been explored for more than ten years by ourselves, corporation, and cooperation with foreign oil companies. Large sums of seismic data have been acquired, and several hundreds of wells have been drilled. The present daily production in these basins is 250,000 barrels of oil and 350 MMCF of gas. The activity of exploration and development in

Zaisheng Gong; Yang Jiaming

1996-01-01

474

Offshore drilling and oil recovery: keys to half a century  

Microsoft Academic Search

Technological and structural developments in offshore drilling and oil recovery during the past 50 yr are reviewed. The earliest steps into the open sea were pier and pile-supported rigs built off the California and Louisiana coasts in the 1920s and 1930s, respectively. Jackup rigs were designed to lift the rig above storm wave level, and currently 53% of the world's

Kastrop

1979-01-01

475

Offshore wind profile measurements from remote sensing instruments  

E-print Network

Offshore wind profile measurements from remote sensing instruments Ioannis Antoniou (1) , Hans E) , Mats Hurtig (3) , (1): Wind Energy Department, Risø National Laboratory, Frederiksborgvej 399, Postboks): AQSystem Sweden. Summary Two SODARs (SOund Detection And Ranging) and a LIDAR (LIght Detection And Ranging

476

Finite element analysis of tensegrity structures in offshore aquaculture installations  

Microsoft Academic Search

Aquaculture is the fastest growing food producing sector in the world. Considerable interest exists in developing open ocean aquaculture in response to a shortage of suitable, sheltered inshore locations and possible husbandry advantages of oceanic sites such as increased water quality and oxygen supply, which improve production efficiency and the quality of fish. The extreme weather conditions experienced offshore leads

Østen Jensen; Anders Sunde Wroldsen; Pål Furset Lader; Arne Fredheim; Mats Heide

2007-01-01

477

ENVIRONMENTAL ISSUES ASSOCIATED WITH OFFSHORE AQUACULTURE & MODELING POTENTIAL IMPACT  

Microsoft Academic Search

ABSTRACT Real and perceived aquaculture environmental impacts that must be considered prior to expansion to open ocean locations include: 1) benthic carbon loading, 2) water column nutrification, 3) stim- ulation of harmful algal blooms, and 4) escapement and implications to wild populations. Asim- ulation model was developed for predicting the benthic impacts from offshore cage culture. The model simulates the

Ralf Riedel; Christopher J. Bridger

478

Portable life support for instrumentation of an offshore platform  

NASA Technical Reports Server (NTRS)

A compressor was used to supply air through a nylon hose to the offshore platform field engineer working at the bottom of the piling. Air quality in the pile was sampled periodically for carbon dioxide, carbon monoxide, hydrogen sulfide, and combustible gases by an universal tester and an explosion meter.

Mull, M. M.; Coffin, C. L.

1972-01-01

479

Subsea solution solves deep problems - producing offshore  

SciTech Connect

Using remotely operated intervention techniques to perform tasks subsea offers advantages in terms of cost efficiency and safety, particularly in deepwater environments. These considerations have prompted the development of the patented Diverless Flowline Connection System (DCFS). The DFCS offers a proven, viable and cost-effective alternative. The DFCS is a lightweight modular Remotely Operated Vehicle (ROV) mounted package designed to complete the tie-in of single or bundled flowline and control umbilical jumpers of up to 18 inches in outer diameter on the seafloor. It has the flexibility to pull in and connect flowlines, umbilicals or both from either the flowline end or manifold, depending upon the operator`s preference. It requires a minimum of permanent subsea hardware or prior structural modifications and is capable of accommodating a variety of situations which can arise during a flowline tie-in, such as the flowline falling outside the target area or the testing and replacement of flowline connector seals. The system itself consists of a neutrally buoyant, skid-mounted module which can be attached to a variety of host work-class ROVs. The ROV and DFCS are deployed separately onto the seabed, and the ROV can dock and undock from the DFCS.

Gilman, B.

1997-04-01

480

Bird distribution response to offshore wind farms. Results from Horns Rev and Nysted Offshore Wind Farms in Denmark  

Microsoft Academic Search

As part of a programme to develop renewable energy sources, a government action plan launched five offshore demonstration wind farm projects in Danish waters in 1997, with the aim to provide information about their engineering and economic feasibility as well as assessing their effects on the environment, especially the potential impacts on waterbirds. All projects were obliged to undertake full

Ib Krag Petersen

481

Oxford University Civil Engineering Novel Foundations for Offshore Wind FarmsNovel Foundations for Offshore Wind Farms  

E-print Network

Oxford University Civil Engineering Novel Foundations for Offshore Wind FarmsNovel Foundations University Civil Engineering OutlineOutline · Motivation · The technical problem · Project structure University Civil Engineering Climatic Research Unit, University of East Anglia, February 2001 #12;Oxford

Houlsby, Guy T.

482

Submitted for Review Journal of Offshore Mechanics and Arctic Engineering, ASME PRACTICAL AIRGAP PREDICTION FOR OFFSHORE STRUCTURES  

E-print Network

. The first new method enables inclusion of some second-order effects, though it is based on only first-volume offshore structures provide design challenges that are well outside the present design experience base challenge. Two distinct hydrodynamic effects are observed: (1) global forces and resulting motions

Sweetman, Bert

483

Copyright 2002, Offshore Technology Conference This paper was prepared for presentation at the 2002 Offshore Technology Conference held in  

E-print Network

Caspian Sea, offshore Azerbaijan, prove evidence for buried gas hydrates well- beneath the seafloor (~300 Caspian Sea may be stable in water depths as shallow as ~150 m, much shallower than other areas reported of the deepwater of the South Caspian Sea, buried deposits well beneath the seafloor, and accordingly, they may

Knapp, Camelia Cristina

484

Activity-Based Prototyping of Ubicomp Applications for Long-Lived, Everyday Human Activities  

E-print Network

, activity-centered design, rapid prototyping, in situ testing, context-aware. INTRODUCTION UbiquitousActivity-Based Prototyping of Ubicomp Applications for Long-Lived, Everyday Human Activities Yang, Suite 600 Seattle, WA 98105 james.a.landay@intel.com ABSTRACT We designed an activity-based prototyping

Anderson, Richard

485

Tephrochronology offshore Ischia Island, Tyrrhenian sea, Italy  

NASA Astrophysics Data System (ADS)

This work presents the analytical results of a tephrochronological study carried out on 12 gravity cores collected offshore southern Ischia island down to a maximum depth of 1238 m. The more distal site (core C1071) is located few kilometers to the west of the "Banco delle Sirene" seamount, not far from the Magnaghi and Dohrn canyons. The composite succession records at least the last ca. 40 kyrs of marine sedimentation as deduced by 14C AMS dating and tephrostratigraphy. This is consistent with the attribution, on the basis of the calcareous nannofossil assemblages, to the Emiliania huxleyi Acme Zone (Rio et al., 1990) in the latest Pleistocene-Holocene time interval. Eight primary tephra layers were recognised and analysed. They are generally represented by coarse to fine ash alternating with a number of volcaniclastic turbidites along the whole succession. The glass fraction was geochemically characterised through SEM-EDS analyses and shows clear affinities with products erupted during significant explosive events occurred in the Campania Plain, Ischia and Procida islands during the last 40 kyrs. Four ash layers were correlated with several eruptions occurred on Ischia island between the Middle Ages and Roman times and at ~ cal. 17 ka B.P. Deposits related to explosive activity occurred on Procida island were also found and dated at ~23 cal ka. Among the most ancient tephra layers, the best preserved horizon, 30 cm thick, is represented by the flegrean products of the Campanian Ignimbrite event (39 ka; De Vivo et al., 2001) the marine signature of which is known as C13 tephra in the Tyrrhenian (Thon-That et al., 2001). The peculiar composition and stratigraphic position of two other main marker tephras recognised in the succession, allowed us to correlate them with the still poorly known Schiava (36 ka B.P.; Paterne and Guichard, 1993; Sulpizio et al., 2003) and Codola (~33. cal ka B.P.; this work) fall-out products which occur as 7-5 cm-thick pumice layers at the coring site. The definition of the source area of these two major events is still a matter of debate. However, the Somma-Vesuvius complex reasonably sourced the Schiava deposits while a Campi Flegrei provenance for the Codola deposits cannot be ruled out (Di Vito et al., 2008). These latters, known as C10 tephra in the Tyrrhenian and Adriatic sea (Paterne et al., 1988; Giaccio et al., 2008), in particular, represent reliable regional markers for the whole central Mediterranean area. References De Vivo, B., Rolandi, G., Gans, P.B., Calvert, A., Bohrson,W.A., Spera, F.J., Belkin, H.E., 2001. New constraints on the pyroclastic eruptive history of the Campanian volcanic Plain (Italy). Mineralogy and Petrology 73, 47-65. Di Vito,M.A., Sulpizio, R., Zanchetta, G., D'Orazio, M., 2008. The late Pleistocene pyroclastic deposits of the Campanian Plain: newinsights into the explosive activity of Neapolitan volcanoes. J. Volcanol. Geotherm. Res.177, 19-48. Giaccio, B., Isaia, R., Fedele, F.G., Di Canzio, E., Hoffecker, J., Ronchitelli, A., Sinitsyn, A., Anikovich, M., Lisitsyn, S.N., 2008. The Campanian Ignimbrite and Codola tephra layers: two temporal/stratigraphic markers for the Early Upper Palaeloithic in southern Italy and eastern Europe. J. Volcanol. Geotherm. Res. 177, 210-228. Paterne M., Guichard F. & Labeyrie J., 1988. Explosive activity of the south Italian volcanoes during the past 80.000 years as determined by marine tephrochronology. J. Volcanol. Geother. Res. 34, 153-172. Paterne, M., Guichard, F., 1993. Triggering of volcanic pluses in the Campanian area, south Italy, by periodic deep magma in.ux. Journal of Geophysical Research 98 (B2), 1861-1873. Rio, D., Raffi, I., Villa, G., 1990. Pliocene-Pleistocene calcareous nannofossil distribution patterns in the western Mediterranean. In: Kastens, K.A. (Ed.), Proceedings of the Ocean Drilling Program. Scientific Results, vol. 107. Ocean Drilling Program, College Station, TX, pp. 513-533. Sulpizio, R., Zanchetta, G., Paterne, M., Siani, G., 2003. A review of tephrostratigraphy in central and south

Insinga, Donatella; Sulpizio, Roberto; de Alteriis, Giovanni; Morabito, Simona; Morra, Vincenzo; Sprovieri, Mario; di Benedetto, Claudia; Lubritto, Carmine; Zanchetta, Giovanni

2010-05-01

486

Copper-nickel piping reduces costs, biofouling/corrosion  

SciTech Connect

Seawater piping systems for offshore drilling rigs and platforms are typically plagued by biofouling and/or corrosion, with piping failures occurring in only a few years. Discussed are alternate pipe materials with the emphasis on the testing of a copper-nickel alloy in the Gulf of Mexico. Results show that although initially more expensive, use of this alloy can extend system life to 20 years or more while improving productivity and reducing overall costs when compared to a comparable steel system.

Albaugh, E.K.

1984-11-01

487

Enhancing Offshore Oil Operations with Cost-Effective and Innovative Telecommunication Solutions  

Microsoft Academic Search

Crude oil constitutes a large percentage of the Nigerian economy. The activities associated with crude oil production involve exploration, drilling, and transportation. Of these activities drilling is known to be the most arduous and expensive venture. The drilling sites are often remote, harsh, hostile, oppressive areas and lack necessary communication infrastructure. The terrestrial infrastructure in Nigeria is often insufficient, antiquated,

S. O. Ajose; I. I. Ezebuiro

488

The offshore petroleum industry: The formative years, 1945-1962  

NASA Astrophysics Data System (ADS)

This dissertation is the first to examine the offshore oil industry that was born in the calm waters of the Gulf of Mexico. It describes the industry's origins and tracks its development as a consequence of a search for new oil frontiers. In addition, it elaborates how the oil industry moved into the marine province using available technology, and was driven by the economic urgency to compete and develop new territories. Enterprising drilling contractors and operators seized the offshore gamble, finding it possible to lower the economic and technological threshold by drawing directly from wartime research and surplus equipment. Though large oil companies had placed its indelible stamp upon the industry, the smaller, independent oil operators set the pace of early offshore development. As a technological frontier, offshore development depended upon creative and unconventional engineering. Unfamiliar marine conditions tested the imagination of oil industry engineering. The unorthodox methods of John Hayward of Barnsdall Oil and R. G. LeTourneau of LeTourneau, Inc. among others transformed the industry by blending petroleum and marine engineering. Grappling with alien marine conditions and lacking formal training, Hayward and LeTourneau merged a century of practical oil field knowledge and petroleum engineering with 2,000 years of shipbuilding experience. The Gulf of Mexico served as a fertile and protective environment for the development of a fledgling industry. With calm waters, lacking the tempestuous and stormy character of the Atlantic Ocean, with a gradual sea-floor slope and saturated with the highly productive salt dome reservoirs, the Gulf became the birth place of the modern offshore oil industry. Within its protective sphere, companies experimented and developed various technical and business adaptations. Operators used technology and business strategies that increased the opportunity for success. In addition, regional academic research institutes arose as a response to increasing work done for the offshore industry. Academic areas that developed included oceanography, physical oceanography, marine biology, marine geology, meteorology, and weather forecasting, During the formative era that ended in the late 1950s the industry had formed its technological and economic foundation in the Gulf, and stood poised to seize the initiative in the North Sea, the Middle East, the Far East, and Indonesia.

Kreidler, Tai Deckner

1997-12-01

489

Integrated reservoir management in the Carpinteria Offshore Field  

SciTech Connect

The Carpinteria Offshore Field is located near Santa Barbara, California. The State of California owns the portion of the field nearest the coast, and the US Federal Government the portion of the field that lies beyond a statutory three-mile coastal water limit. This mature reservoir has yielded more than 100 million barrels of oil from five platforms in its 30 years of production. The US Department of Energy`s Los Alamos National Laboratory (managed by the University of California) has joined with the State Lands Commission of California, the US Department of Interior`s Minerals Management Service, and the independent operator of the field, Pacific Operators Offshore, Inc., in a unique collaboration to redevelop the field. The reservoir management strategy for the Carpinteria Field relies on a long-term investment in simulation tools and expertise. These technologies and expertise are available to all project participants through a virtual enterprise business model.

Whitney, E.M.; Pawar, R.J.; Kendall, R.P.

1998-12-31

490

Off-shoring clinical research: exploitation and the reciprocity constraint.  

PubMed

The last 20 years have seen a staggering growth in the practice of off-shoring clinical research to low-and middle-income countries (LICs and MICs), a growth that has been matched by the neoliberal policies adopted by host countries towards attracting trials to their shores. A recurring concern in this context is the charge of exploitation, linked to various aspects of off-shoring. In this paper, I examine Alan Wertheimer's approach and offer an alternative view of understanding exploitation in this context. I will suggest that the justification for the enterprise of research is largely dependent on its integration within a health system from which participants regularly benefit and I argue that an attention to a principle of reciprocity will enable us to better recognize and address exploitation in international research. PMID:22708740

Mitra, Agomoni Ganguli

2013-12-01

491

Operators renewing exploration in offshore basins of France  

SciTech Connect

Forty nine wells were drilled without success from the latter 1960s to the first half of the 1980s in French offshore areas. About 10 years of reduced activity followed this first phase of exploration. For a couple of years, these areas have been closely reassessed, taking into account the experience and data previously acquired. More particularly, a better understanding of tectonic processes at the origin of complex structural traps, a better taking into account of the distribution, quality, and maturation history of source rocks, together with significant improvements in seismic data acquisition-processing and basin modeling techniques, have led a few oil companies to apply for licenses in three offshore areas. The paper discusses prospects in the Bay of Biscay, the Iroise Sea and English Channel, and the Gulf of Lions.

Lamiraux, C. [Ministry of Industry, Rueil-Malmaison (France); Mascle, A. [Inst. Francais du Petrole, Rueil-Malmaison (France)

1995-07-03

492

Potential for Floating Offshore Wind Energy in Japanese Waters  

Microsoft Academic Search

The prospects for large scale commercialisation of sea-bed- mounted offshore windfarms are currently excellent, with the existing small-scale prototype windfarms currently being joined by the first large-scale parks in the shallow seas off the Danish, German, Swedish, Dutch, Belgian, British and Irish coasts. However other countries, including Japan, have much more limited regions of the shallow waters suitable for such

A. R. Henderson; R. Leutz; Tomoki Fujii

2002-01-01

493

Application of VSC-HVDC system on offshore wind farm  

Microsoft Academic Search

In order to realize application of VSC-HVDC system on offshore wind farm, analyzing the principle and characteristics of VSC-HVDC system, Through its mathematical equivalent circuit, deduced active power and reactive power formulation. Based on the formulation analyzing three basic control mode of inverter. Combined with AC power and traditional HVDC system, analyzing advantaged performance of VSC-HVDC system. From the angle

Jieqiu Bao; Zhenguo Gao; Chuiyi Meng

2011-01-01

494

Characteristic features of salt tectonics offshore North Sinai, Egypt  

Microsoft Academic Search

Salt tectonic along offshore North Sinai was studied using seismic reflection data. The study revealed and identified various\\u000a types of salt tectonics and structures in the study area. The triggering mechanism of salt tectonics was attributed to the\\u000a pressure regime initiated from overloading sediments on the Messinian evaporites. The sediment load of 3,000 m exceeds the\\u000a critical load (more than 1,000 m)

El Sayed Ibrahim Selim; Mohamed A. Omran

495

Basic Integrative Models for Offshore Wind Turbine Systems  

E-print Network

.com) ................................................... 20 17 David Fisher?s Swirling Skyscraper (gizmag.com) ................................................... 20 viii FIGURE Page 18 Offshore Wind Turbine, the Aerogenerator X (gizmodo.com)................................... 22 19 Siemens Hywind... the three wind turbines with greater wind stream. An example from dynamic architecture is David Fisher?s rather unique design of a wind-powered, rotating skyscraper, which features 80 independently-rotating floors and is expected to be the world?s first...

Aljeeran, Fares

2012-07-16

496

Armelle Choplin et Jrme Lombard La Mauritanie offshore.  

E-print Network

1 Armelle Choplin et Jérôme Lombard La Mauritanie offshore. Extraversion économique, �tat et sphères dirigeantes Le processus d'extraversion est au coeur du fonctionnement de l'�tat mauritanien. Dans minières et halieutiques du pays. Avec la mise en exploitation de nouvelles ressources (pétrole et or), l'extraversion

Boyer, Edmond

497

Offshore Hedge Funds: Survival and Performance, 1989-95  

Microsoft Academic Search

The authors examine the performance of the off-shore hedge fund industry over the period 1989 through 1995 using a database that includes both defunct and currently operating funds. The industry is characterized by high attrition rates of funds, low covariance with the U.S. stock market, evidence consistent with positive risk-adjusted returns over the time, and little evidence of differential manager

Stephen J. Brown; William N. Goetzmann; Roger G. Ibbotson

1999-01-01

498

Drugs offshore: companies stepping up fight against hidden adversary  

Microsoft Academic Search

Oil companies worldwide are effectively fighting a growing nemesis, drug and alcohol abuse on offshore installations. It is estimated that companies are losing millions of dollars in lost productivity, accidents, and thefts caused by on-the-job use of illegal drugs. Some of the measures being employed to combat the use of such drugs, e.g., tight control, better communications, diversions for employees,

Redden

1986-01-01

499

Topographic analysis of submarine cable failures offshore southwestern taiwan  

NASA Astrophysics Data System (ADS)

In 2006, there was large scale of the submarine cable failures offshore southern Taiwan right after the Pingtung Earthquake. Apparently the December 26 Pingtung Earthquake triggered submarine mass movements which generated turbidity currents in the submarine canyons and damaged cables lying across the canyons. In addition, the Typhoon Morakot on August 8-9, 2009 and the Jiashian Earthquake on March 4, 2010 also caused many submarine cable failures offshore southwestern Taiwan. The most of broken cable sites are along the axis of the Gaoping Submarine Canyon (GPSC) and Fangliao Submarine Canyon (FLSC), topography should be an important factor controlling transport processes of submarine mass movement. The cable broken sites indicate that there were submarine mass movement pass through. Therefore, the topographic factor of the cable broken sites can be the threshold to index submarine mass movement. And as, submarine cables are distributed widely offshore southwestern Taiwan, why only a total of 35 sites of submarine cable failures occurred in 2006, 2009 and 2010? We use bathymetry data, CHIRP (compressed high-intensity radar pulse) sonar profile data and the time series of the cable breakage to investigate the characteristics of submarine mass movement and to develop a model for the series of submarine cable failure. Using the Geographic Information System (GIS) software, we analyze the bathymetric data collected before the 35 sites of submarine cable failures offshore southwestern Taiwan. Applying the hydrology in GIS software, the flow movement could be derived from the factors of slope and aspect. We quantify the transport process of submarine mass movement and combine with the time series of the cable breakage to discuss the effect between submarine cable failures. Based on the CHIRP sonar data, we identified the distinct CHIRP echo character patterns after the submarine cable failures and classify the distinct CHIRP echo characters. Using the threshold of topographic factor to expect where will be potential area of submarine mass movement and evidence the result by CHIRP sonar profile data.

Hsia, Pei Cheng; Shine Liu, Char; Hsu, Ho Han

2013-04-01

500

Remote Sensing Observation Used in Offshore Wind Energy  

Microsoft Academic Search

Remote sensing observations used in offshore wind energy are described in three parts: ground-based techniques and applications, airborne techniques and applications, and satellite-based techniques and applications. Ground-based remote sensing of winds is relevant, in particular, for new large wind turbines where meteorological masts do not enable observations across the rotor-plane, i.e., at 100 to 200 m above ground level. Light

Charlotte Bay Hasager; Alfredo Pena; Merete Bruun Christiansen; Poul Astrup; Morten Nielsen; Frank Monaldo; Donald Thompson; Per Nielsen

2008-01-01