Results 201 to 210 of about 41,718 (241)

Increasing continuous positive airway pressure use rates in the delivery room for very preterm infants: a quality improvement initiative. [PDF]

Front Pediatr
Kim H, Lee NH, Kim H, Kim SH, Choo SJ, Yang M, Ahn SY, Sung SI, Chang YS.   +8 more
europepmc   +1 more source

Multimodal biological profiles of symptom-based subgroups in recent-onset psychosis

Koutsouleris N, Buciuman MO, Vetter C, Bajrić A, Weyer C, Perdomo ST, Khuntia AT, milaneschi y, Popovic D, Dwyer D, Chisholm K, Kambeitz-Ilankovic L, Antonucci L, Lichtenstein T, Rosen M, Ruhrmann S, Kambeitz J, Riecher-Rössler A, Upthegrove R, Salokangas R, Hietala J, Pantelis C, Lencer R, Meisenzahl E, Wood S, Brambilla P, Borgwardt S, Bertolino A, Falkai P.   +28 more
europepmc   +1 more source

Extended Genetic Algorithm-Based Improved Model for Drilling Rate of Penetration (ROP) Using Mud Logging Data

Mohammad Islam Miah, Mohammad Tareq Reza, Md. Mizanur Rahman, Md. Maruf Alam   +3 more
openaire   +1 more source

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Improving Accuracy of Well Depth and ROP

SPE/IADC International Drilling Conference and Exhibition, 2019
Abstract This paper presents a theory and formulas for correction of the drillstring length as a function of loads, such as tension force, fluid pressures and temperature. The effects being specifically addressed are static and dynamic tensional stretch, pressure ballooning, hydrostatic shortening, flow lift shortening, and thermal ...
Åge Kyllingstad, Karl Erik Thoresen
openaire   +1 more source

ROP margin improvement options for CANDU reactors

Annals of Nuclear Energy, 2015
Abstract Over the past few years, Candu Energy Inc. (a wholly owned subsidiary of SNC-Lavalin Inc., which acquired the assets of Atomic Energy of Canada Limited’s Commercial Reactor Division) has been continuously developing and evaluating various options to improve the regional overpower protection (ROP) margin in aged CANDU 600 MW (CANDU 6 ...
D. Kastanya, P. White, V. Caxaj, A.-S. Seidu   +3 more
openaire   +1 more source

A ROP prediction approach based on improved BP neural network

2014 IEEE 3rd International Conference on Cloud Computing and Intelligence Systems, 2014
Effective prediction of ROP (Rate of Penetration) is a crucial part of successful well drilling process. Due to the penetration complexities and the formation heterogeneity, traditional way such as ROP equations and regression analysis are confined by their limitations in the drilling practices.
null Jinan Duan, null Jinhai Zhao, null Li Xiao, null Chuanshu Yang, null Huinian Chen   +4 more
openaire   +1 more source

How Deep Learning can Provide Consistent Improvement on ROP Through Different Drilling Environments

IADC/SPE International Drilling Conference and Exhibition, 2022
Abstract Using multidimensional analysis of historical drilling parameters combined with deep learning (DL) techniques, consistent ROP improvement in different drilling environments can be achieved. This discussion is focused on how offset well data can be properly analyzed and modeled to generate valuable outputs that improve not only ...
Diego Alberto Junca Rivera, Julian Ricardo Bohorquez Gutierrez, Evgeniya Dontsova, John Estrada Giraldo, Jesus Martinez Ferreira, Jerry Webb   +5 more
openaire   +1 more source

Improved ROP in Ultrahard Rock

Journal of Petroleum Technology, 2006
This article, written by Assistant Technology Editor Karen Bybee, contains highlights of paper SPE 99045, "ROP Enhancement in Ultrahard Rock," by M. Roehrlich and K.-U. Belohlavek, ExxonMobil Development Co., prepared for the 2006 IADC/SPE Drilling Conference, Miami, Florida, 21–23 February.
openaire   +1 more source

Hybrid Solution Improves ROP and Borehole Quality in Challenging Large Diameter Holes

SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, 2015
Abstract In the prolific Burgan field, South East Kuwait, new well profiles are being employed which require the 16 inch hole section to be drilled deeper. This new well profile requires drilling through interbedded abrasive sandstones and sticky shale which were previously drilled in 12 ¼ inch hole size.
Marwa Omar, Franklin Valbuena, Atef Abdelhamid, Waleed Agawani, Mohammed Taha, Khaled Saleh, Yousef Baqer, Saswata Nath, Moufid Abbas   +8 more
openaire   +1 more source

Retinopathy of Prematurity (ROP) in a Developing Economy with Improving Health Care

Current Ophthalmology Reports, 2017
The purpose of this study is to highlight the changing pattern of retinopathy of prematurity (ROP) incidence with improvement in economy and health care in Africa, pointing out the challenges and recommendations for sustainable, cost-effective screening and management. ROP was initially thought to be rare in some parts of Africa.
Dupe S. Ademola-Popoola, Tunji S. Oluleye   +1 more
openaire   +1 more source