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| 1 | Impact of elliptical boreholes on in situ stress estimation from leak-off test data显示文摘We developed an inversion technique to determine in situ stresses for elliptical boreholes of arbitrary trajectory. In this approach, borehole geometry, drilling-induced fracture information, and other available leak-off test data were used to construct a mathematical model, which was in turn applied to finding the inverse of an overdetermined system of equations.The method has been demonstrated by a case study in the Appalachian Basin, USA. The calculated horizontal stresses are in reasonable agreement with the reported regional stress study of the area, although there are no field measurement data of the studied well for direct calibration. The results also indicate that 2% of axis difference in the elliptical borehole geometry can cause a 5% difference in minimum horizontal stress calculation and a 10% difference in maximum horizontal stress calculation. | Hong Xue Han Shunde Yin Bernt Sigve Aadnoy | 2018 | Petroleum Science2018，15，4： | 2 |
| 2 | 基于改进型蒙特卡洛模拟的腐蚀管线可靠性分析显示文摘考虑到系统可靠性的影响,研究了腐蚀管道的可靠性分析。通过利用改进型蒙特卡罗模拟方法进行分析,表明该方法在具有任意相关性的多个分量的情况下,对于量化系统可靠性非常有效。文章所研究的实例包括具有独立和相关的腐蚀缺陷的系统。 | 马小芳 BERNT J.L ARVID N BRANDRUD N | 2019 | 石油管材与仪器2019，5，3： | 2 |
| 3 | Semantic Modeling of Natural Scenes for Content-Based Image Retrieval显示文摘 | Julia Vogel Bernt Schiele | 2007 | International Journal of Computer Vision2007，，2： | 2 |
| 4 | The impact of affectivity dispositions, self-efficacy and locus of control on psychosocial adjustment in patients with epilepsy显示文摘 | Arne Gramstad Erik Iversen Bernt A Engelsen | 2001 | Epilepsy Research2001，，1： | 2 |
| 5 | 极地船舶结构设计思考显示文摘冰脊和冰山与极地船体发生碰撞将影响船体结构安全,并决定船体结构设计载荷。船体结构设计应遵循基于风险的设计原则,通常涉及以下极限状态设计准则:1)服务极限状态(SLS);2)最终极限状态(ULS);3)疲劳极限状态(FLS);4)事故极限状态(ALS)。最终极限状态和事故极限状态对应于发生概率极低的船与冰脊作用以及冰山撞击事件,旨在确保船体结构不会完全损毁。然而,对于较低概率水平的冰载荷分析,需进行较大数据量的工况分析,计算耗时无法承受。为此,引入环境等值轮廓方法,来大幅减少冰载荷分析所需工况数量,并给出设计工况最有可能的冰体参数组合方式。结合最终极限状态和事故极限状态,举例说明这一方法的运用方式。环境等值轮廓方法可为现有极地船舶船体结构设计方法提供有效补充。 | Bernt J.LEIRA 柴威 Gowtham RADHAKRISNAN | 2022 | 中国舰船研究2022，17，5： | 2 |
| 6 | Improvement of Wired Drill Pipe Data Quality via Data Validation and Reconciliation显示文摘Wired drill pipe(WDP)technology is one of the most promising data acquisition technologies in today s oil and gas industry.For the first time it allows sensors to be positioned along the drill string which enables collecting and transmitting valuable data not only from the bottom hole assembly(BHA),but also along the entire length of the wellbore to the drill floor.The technology has received industry acceptance as a viable alternative to the typical logging while drilling(LWD)method.Recently more and more WDP applications can be found in the challenging drilling environments around the world,leading to many innovations to the industry.Nevertheless most of the data acquired from WDP can be noisy and in some circumstances of very poor quality.Diverse factors contribute to the poor data quality.Most common sources include mis-calibrated sensors,sensor drifting,errors during data transmission,or some abnormal conditions in the well,etc.The challenge of improving the data quality has attracted more and more focus from many researchers during the past decade.This paper has proposed a promising solution to address such challenge by making corrections of the raw WDP data and estimating unmeasurable parameters to reveal downhole behaviors.An advanced data processing method,data validation and reconciliation(DVR)has been employed,which makes use of the redundant data from multiple WDP sensors to filter/remove the noise from the measurements and ensures the coherence of all sensors and models.Moreover it has the ability to distinguish the accurate measurements from the inaccurate ones.In addition,the data with improved quality can be used for estimating some crucial parameters in the drilling process which are unmeasurable in the first place,hence provide better model calibrations for integrated well planning and realtime operations. | Dan Sui Olha Sukhoboka Bernt Sigve Aadn?y | 2018 | International Journal of Automation and computing2018，15，5： | 2 |
| 7 | Backward stochastic differential equations with jumps and application to optimal control of random jump fields显示文摘 | Bernt φksendal Frank Proske Zhang Tusheng | 2005 | Stochastics2005，77，： | 1 |
| 8 | Dynamic Response and Fluid/structure Interaction of Submerged Floating Tunnels显示文摘 | SVEIN Remseth BERNT J leira KNUT M Okstad | 1999 | Computers & Structures1999，72，4： | 1 |
| 9 | Isolation in cell cultures and initial characterisation of two novel bocavirus species from swine in Northern Ireland显示文摘 | John McKillen Francis McNeilly Catherine Duffy Michael McMenamy Irene McNair Bernt Hjertner Andrena Millar Karen McKay Paula Lagan Brian Adair Gordon Allan | 2011 | Veterinary Microbiology2011，，1： | 1 |
| 10 | A Donsker Delta Functional Approach to Optimal Insider Control and Applications to Finance显示文摘We study optimal insider control problems,i.e.,optimal control problems of stochastic systemswhere the controller at any time t,in addition to knowledge about the history of the system up to this time,also has additional information related to a future value of the system.Since this puts the associated controlled systems outside the context of semimartingales,we apply anticipative white noise analysis,including forward integration and Hida-Malliavin calculus to study the problem.Combining this with Donsker delta functionals,we transform the insider control problem into a classical(but parametrised)adapted control system,albeit with a non-classical performance functional.We establish a sufficient and a necessary maximum principle for such systems.Then we apply the results to obtain explicit solutions for some optimal insider portfolio problems in financial markets described by Itô-Lévy processes.Finally,in the Appendix,we give a brief survey of the concepts and results we need from the theory of white noise,forward integrals and Hida-Malliavin calculus. | Olfa Draouil BerntФksendal | 2015 | Communications in Mathematics and Statistics2015，3，3： | 1 |
| 11 | Corrosion in HVDC valve cooling systems 显示文摘 | Per-Olof Jackson Bernt Abrahamsson Dan Gustavsson etc | 1997 | IEEE transac- tions on power delivery1997，12，2： | 1 |
| 12 | How does(n't) Urban Shrinkage get onto the Agenda? Experiences from Leipzig, Liverpool, Genoa and Bytom显示文摘 | Bernt M Haase A Gromann K | 2014 | International Journal of Urban and Regional Research2014，38，5： | 1 |
| 13 | Assessment of a combined, adenovirus-mediated oncolytic and immunostimulatory tumor therapy 显示文摘 | Bernt KM Ni S Tieu AT | 2005 | Cancer Res2005，65，10： | 1 |
| 14 | On the Distribution of Free Path Lengths?for the Periodic Lorentz Gas显示文摘 | Jean Bourgain Fran?ois Golse Bernt Wennberg | 1998 | Communications in Mathematical Physics1998，，3： | 1 |
| 15 | Stock Market Liquidity and the Business Cycle 显示文摘 | Randi N S Johannes A Skjehorp Bernt Ame Degaard | 2011 | The Journal of Finance2011，，1： | 1 |
| 16 | Three-dimensional well tubular design improves margins in critical wells显示文摘 | Aasen J A Bernt S Aadnoy | 2007 | Journal of Petroleum Science and Engineering2007，56，4： | 1 |
| 17 | Political regulation and radical institutional change: The case of aquaculture in Norway显示文摘 | Bernt Aarset Stig-ErikJakobsen | 2009 | Marine Policy2009，33，： | 1 |
| 18 | Implementing Public Utility Commission Web Sites: Targeting Audiences, Missing Opportunities显示文摘 | Wood L Bernt P Ting C | 2009 | Public Administration Review2009，69，4： | 1 |
| 19 | Erythritol:an interpretive summary of biochemical,metabolic,toxicological and clinical data显示文摘 | Munro C Bernt W O Borzelleca J F | 1998 | Food and Chemical Toxicol1998，36，12： | 1 |
| 20 | 显示文摘 | Bernt B Johnsena Fabrice L | 2004 | Int J Adhes & Ad- hes2004，24，： | 1 |
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