Relevant bibliographies by topics / Rop Complex

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Rop Complex'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Rop Complex"

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Labbé, Jean-Claude, Siegfried Hekimi, and Luis A. Rokeach. "Assessing the function of the Ro ribonucleoprotein complex using Caenorhabditis elegans as a biological tool." Biochemistry and Cell Biology 77, no. 4 (1999): 349–54. http://dx.doi.org/10.1139/o99-036.

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The Ro ribonucleoprotein complex (Ro RNP) was initially described as an autoimmune target in human diseases such as systemic lupus erythematosus and Sjögren's syndrome. In Xenopus and human cells, its general structure is composed of one major protein of 60 kDa, Ro60, that binds to one of four small RNA molecules, designated Y RNAs. Although no function has been assigned to the Ro RNP, Ro60 has been shown to bind mutant 5S ribosomal RNA (rRNA) molecules in Xenopus oocytes, suggesting a role for Ro60 in 5S rRNA biogenesis. Ro60 has also been shown to participate in the regulation of the transla
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Rodriguez, Sarah H., Anna L. Ells, Michael P. Blair, et al. "Retinopathy of Prematurity in the 21st Century and the Complex Impact of Supplemental Oxygen." Journal of Clinical Medicine 12, no. 3 (2023): 1228. http://dx.doi.org/10.3390/jcm12031228.

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Retinopathy of prematurity (ROP) is a leading cause of childhood blindness. Not only do the epidemiologic determinants and distributions of patients with ROP vary worldwide, but clinical differences have also been described. The Third Edition of the International Classification of ROP (ICROP3) acknowledges that aggressive ROP (AROP) can occur in larger preterm infants and involve areas of the more anterior retina, particularly in low-resource settings with unmonitored oxygen supplementation. As sub-specialty training programs are underway to address an epidemic of ROP in sub-Saharan Africa, re
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Zueva, M. V., L. V. Kogoleva, and L. A. Katargina. "Retinal plasticity in retinopathy of prematurity, and phototherapy prospects." Russian Ophthalmological Journal 13, no. 1 (2020): 77–84. http://dx.doi.org/10.21516/2072-0076-2020-13-1-77-84.

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In premature babies, plastic changes develop in the neural retina, which, depending on the severity of retinopathy of prematurity (ROP), are a manifestation of adaptive or non-adaptive plasticity. In various experimental studies on animal ROP models, the conditioning effects of intermittent white light stimulation and various mechanisms of the positive effect of red and ultraviolet radiation on the plasticity of the retina have been demonstrated, which allows phototherapy to be considered as a promising modifying treatment for ROP supplementing the main therapy. Taking into account that light-
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Kariakin, M. A., E. A. Stepanova, S. A. Korotkikh, N. S. Timofeeva, and S. I. Surtaev. "Application of vessel endothelium growth factor inhibitor ranibizumab in complex therapy of retinopathy of prematurity." Russian Pediatric Ophthalmology 16, no. 3 (2021): 5–10. http://dx.doi.org/10.17816/rpoj90740.

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AIM: To conduct a retrospective study of the application of vessel endothelium growth factor inhibitor ranibizumab in complex therapy of retinopathy of prematurity in Ural State children`s ophthalmological center at State Autonomic Health Institution of the Sverdlovsk Region Multiprofile Clinical Medical Center BONUM in Yekaterinburg.
 MATERIAL AND METHODS: The study included 17 patients (33 eyes). The gestation age was from 23 to 30 weeks (mean: 26.51.7 weeks), birth weight was from 600 to 1850 g (mean: 867229 g). 8 patients (47%) had APROP, and 9 patients (53%) had ROP stage III, type 1
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Pollan, Charlene. "Retinopathy of Prematurity: An Eye Toward Better Outcomes." Neonatal Network 28, no. 2 (2009): 93–101. http://dx.doi.org/10.1891/0730-0832.28.2.93.

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Retinopathy of prematurity (ROP) results from the abnormal growth of blood vessels in the vascular bed supporting the developing retina. Estimated to cause up to 500 new cases of blindness in the U.S. each year, ROP affects primarily infants born at less than 1,500 g. Although its etiology is not well understood, ROP is thought to occur as a result of a complex interaction between oxygen and vascular growth factors. This article briefly reviews the history of ROP, discusses its pathophysiology, and addresses the risk factors and strategies for prevention.
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Vargha, András, and Péter Bánsági. "ROP-R: a free multivariate statistical software that runs R packages in a ROPstat framework." Hungarian Statistical Review 5, no. 2 (2022): 3–29. http://dx.doi.org/10.35618/hsr2022.02.en003.

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This paper introduces ROP-R, a new and free ROPstat-based multivariate statistical program package. ROP-R provides a user-friendly menu system for running several statistical procedures (several regressions, dimension reduction analyses, clustering procedures) by means of ROP-R-created R scripts, just as JASP or jamovi, but in several modules offering new opportunities (e.g. model-based cluster analysis). The usefulness and elegance of the ROP-R are illustrated in a separate chapter by a complex series of statistical analyses made with a data sample from a study on the psychological topic of a
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Wu, Zebing, Mengjie Jiang, Weixin Zheng, Yabing Gu, Xiping Zhai, and Chenjuan Yang. "Modeling and Simulation of Rock Bits Based on Mega Drilling Data." Journal of Physics: Conference Series 2179, no. 1 (2022): 012013. http://dx.doi.org/10.1088/1742-6596/2179/1/012013.

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Abstract Rock bits directly undertake the task of fracturing rock under earth during drilling operation. Accurate prediction of Rate of penetration (ROP) play an important role in reducing drilling costs and shortening the drilling cycle. This paper introduces ROP prediction methods including empirical mathematical modeling, computer simulation of bit-rock interaction and BP neural network model based on mega drilling data. The most significant factors affecting ROP are summarized as follows: weight on bit(WOB), rotation speed, rock formation properties, bit cutting structure, etc., which have
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Zhao, Xiuwen, Hu Yin, and Qian Li. "Data Knowledge Dual-Driven Rate of Penetration Prediction Method for Horizontal Wells." Applied Sciences 13, no. 20 (2023): 11396. http://dx.doi.org/10.3390/app132011396.

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The prediction and optimization of the rate of penetration (ROP) for horizontal wells are more complicated than for vertical wells, but most of the current ROP prediction studies are for vertical wells, which cannot be adapted to the complex drilling characteristics of horizontal wells. To this end, this paper proposes a data knowledge dual-driven horizontal well ROP prediction method. Firstly, the drilling characteristics of horizontal wells are analyzed, showing that the horizontal wells ROP prediction model cannot be modeled using surface measurement data; secondly, based on the analysis of
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Wang, Yingjie, Qiang Tan, Desheng Wu, Hao Chen, Naikun Hu, and Yuxuan Zhao. "A Data-Driven Approach to Predict the ROP of Deep Wells in Fukang Sag." Applied Sciences 13, no. 22 (2023): 12471. http://dx.doi.org/10.3390/app132212471.

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In the deep well drilling process in the Fukang Depression of the Eastern Junggar Basin, rock fracturing issues and low rate of penetration (ROP) have posed significant challenges to drilling efficiency. Accurate predictions of ROP prior to drilling are of considerable value in this context. Precise predictions enable on-site engineering teams to proactively identify drilling difficulties and anticipate potential complex scenarios, facilitating them in designing preventive measures in advance, such as selecting appropriate drill bits, adjusting drilling parameters, or employing specific drilli
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Chen, Haodong, Yan Jin, Wandong Zhang, Junfeng Zhang, Lei Ma, and Yunhu Lu. "Deep Neural Network Prediction of Mechanical Drilling Speed." Energies 15, no. 9 (2022): 3037. http://dx.doi.org/10.3390/en15093037.

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Rate of penetration (ROP) prediction is critical for the optimization of drilling parameters and ROP improvement during drilling. However, it is still challenging to accurately predict ROP based on traditional empirical formula methods. This is usually the case for the development of the Wushi 17-2 oilfield block in the South China Sea. The Liushagang Formation is complex and the ROP is relatively low and difficult to increase. Ordinary data-driven ROP prediction models are not applicable because they do not take into account the complexity of formation conditions. In this work, we characteriz
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Dissertations / Theses on the topic "Rop Complex"

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Pietrozotto, Sara. "Rôle du complexe rétromère dans la polarité cellulaire chez Arabidopsis thaliana." Thesis, Lyon, École normale supérieure, 2011. http://www.theses.fr/2011ENSL0647.

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Le rétromère est un complexe multiprotéique qui régule le trafic intracellulaire et qui est conservé chez les eucaryotes. Chez la levure et les animaux, le complexe rétromère est impliqué dans le recyclage des régulateurs de la polarité cellulaire. Chez Arabidopsis thaliana, les travaux de notre équipe ont démontré que ce complexe est requis pour la localisation polaire des transporteurs d’auxine de la famille PIN. Au cours de mon travail de thèse, j’ai approfondi la caractérisation de la fonction du composant AtVPS29 du rétromère et démontré son rôle dans la régulation de la croissance cellul
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Mishra, Rahul Kumar. "Study of Exon Junction Complex in mouse neural stem cells." Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066201/document.

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Le complexe EJC (Exon Junction Complex) joue un rôle central dans le couplage des processus post-transcriptionnels chez les métazoaires. Ce complexe multi-protéique est assemblé sur les ARN messagers (ARNm) par la machinerie d’épissage. Organisé autour d’un complexe cœur servant de plate-forme à de nombreux facteurs, les EJCs accompagnent les ARNm dans le cytoplasme et participent à leur transport, leur traduction et leur stabilité. L’importance physiologique de l’EJC est supportée par les nombreux défauts développementaux et les maladies génétiques associées aux composants de l’EJC. Les analy
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Hasnaoui, Hnia Manel. "Etude du mécanisme de rétrotransposition de LINE-1 chez l'homme." Thesis, Montpellier 2, 2012. http://www.theses.fr/2012MON20020.

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Le génome humain est constitué d'environ 45% d'éléments transposables, et l'élément LINE-1 (L1), qui représente 17% de la masse totale, est le seul élément actif connu de notre génome capable de rétrotransposer. Les protéines de L1, ORF1p et ORF2p, peuvent mobiliser divers ARN en trans, tel que Alu, le snRNA U6 ou encore d'autres ARNm cellulaires. C'est, en partie pour ces raisons que l'élément L1 est considéré comme un acteur majeur de la plasticité de notre génome.Dans un premier temps, nous avons élaboré un nouveau système, la lignée stable inductible Trex, qui permettra d'étudier la rétrot
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Mishra, Rahul Kumar. "Study of Exon Junction Complex in mouse neural stem cells." Electronic Thesis or Diss., Paris 6, 2016. http://www.theses.fr/2016PA066201.

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Le complexe EJC (Exon Junction Complex) joue un rôle central dans le couplage des processus post-transcriptionnels chez les métazoaires. Ce complexe multi-protéique est assemblé sur les ARN messagers (ARNm) par la machinerie d’épissage. Organisé autour d’un complexe cœur servant de plate-forme à de nombreux facteurs, les EJCs accompagnent les ARNm dans le cytoplasme et participent à leur transport, leur traduction et leur stabilité. L’importance physiologique de l’EJC est supportée par les nombreux défauts développementaux et les maladies génétiques associées aux composants de l’EJC. Les analy
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Alansawi, Deeb. "Rigid-Rod Structured Homobimetallic Complexes." Doctoral thesis, Universitätsbibliothek Chemnitz, 2005. http://nbn-resolving.de/urn:nbn:de:swb:ch1-200500344.

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The synthesis and reaction chemistry of trans-(PPh3)2Pd(C6H4-4-I)(X) (X = I, OTf) is discussed. Treatment of trans- (PPh3)2Pd(C6H4- 4-I)(OTf) with bidentate Lewis-bases (N)N), such as pz, bipy, C5H4N-4-CN, (C6H4-4-CN)2 or C6H4-1,4-CN produces, depending on N)N, mono- or bimetallic species of type [trans- (PPh3)2Pd(C6H4-4-I)(N)N)]+ or [trans-(Ph3P)2(C6H4- 4-I)Pd N)N Pd- (PPh3)2(C6H4-4-I)]2+. These new complexes rearrange in the solution to give [trans-[(Ph3P)2Pd(C6H4-4-PPh3)(N)N)]2+ (N)N = C4H4N2, C5H4N-4-CN, NaC-4-C5H4N) and [trans-[(Ph3P)2(C6H4-4-PPh3)- Pd N)N Pd(PPh3)2(C6H4-4-PPh3)]4+ (N)N =
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Litvin, Justin M. "Determining the Diagnostic Accuracy of and Interpretation Guidelines for the Complex Trauma Inventory [CTI]." Thesis, University of North Texas, 2019. https://digital.library.unt.edu/ark:/67531/metadc1609084/.

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The work group in charge of editing the trauma disorders in the upcoming edition of the International Classification of Diseases (ICD-11) made several changes to the trauma criteria. Specifically, they simplified the criteria for posttraumatic stress disorder (PTSD) and added a new trauma disorder called complex PTSD (CPTSD). To assess the new and newly defined trauma disorders, Litvin, Kaminski and Riggs developed a self-report trauma measure called the Complex Trauma Inventory (CTI). Although the reliability and validity of the CTI has been supported, no empirically-derived cutoff scores exi
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Ballisai, Antonio. "Synthesis of rigid-rod metal-alkynyl complexes." Thesis, Imperial College London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.433302.

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Bouic, Phillip J. "Ruthenium complexes as potential aqueous romp catalysts." Thesis, Aston University, 1996. http://publications.aston.ac.uk/9676/.

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The research described herein relates to studies into the Aqueous Ring-Opening Metathesis Polymerisation (ROMP) of bicyclic monomers using ruthenium complex catalysts. Two monomers were synthesised for the purpose of these studies, namely exo, exo-7-oxabicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid (7-oxanorbornenedicarboxylic acid) and exo, exo-bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid (norbornene dicarboxylic acid). A number of ruthenium complexes were synthesised, amongst them a novel complex containing the water soluble phosphine ligand trist(hydroxymethyl)phosphine P(CH2OH)3. Its syn
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Pulukkunat, Dileep K. "Biochemical studies on archaeal ribonuclease P reveal thematic convergence in protein-facilitated RNA catalysis." Columbus, Ohio : Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1206094060.

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Vaitinadin, Nataraja Sarma. "A Study of Cardiometabolic Traits and their Progression, over a Decade, in a Croatian Island Population." University of Cincinnati / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1554475800173427.

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Books on the topic "Rop Complex"

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Athanassiou, Cléopâtre. Un étrange itinéraire psychanalytique: Œdipe roi. Hublot, 1999.

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Razavet, Jean-Claude. De Freud à Lacan: Du roc de la castration au roc de la structure. De Boeck Université, 2000.

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Razavet, Jean-Claude. De Freud à Lacan: Du roc de la castration au roc de la structure. De Boeck, 2000.

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M, Moussa Ahmed, ed. La chaussée du complexe funéraire du roi Ounas. Institut franc̨ais d'archéologie orientale, 2002.

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Labrousse, A. Le temple d'accueil du complexe funéraire du roi Ounas. Institut frana̧is d'archéologie orientale, 1996.

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Labrousse, A. Le temple d'accueil du complexe funeraire du roi Ounas. Inst. francais d'archeologie orientale, 1996.

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Max, Andrews, and Royal College of Art (Great Britain), eds. The straight or crooked way: Curating experience /[compiled and edited by, Max Andrews ... [et al.]. Royal College of Art, 2003.

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Eric K. Noji, Ronald Waldman, ed. Field epidemiology: Field investigations of natural disasters and complex emergencies / Ron Waldman and Eric K. Noji. 3rd ed. Oxford University Press, 2009.

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Productions, Underwood Street, ed. On top!: Your spot in the multi-billion dollar music industry : compiled for todays' hip-hop and R & B acts. Underwood Street Productions, 1994.

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J, Warnatz, Jäger W. 1940-, and Workshop on Modelling of Chemical Reaction Systems (2nd : 1986 : Heidelberg, West Germany), eds. Complex chemical reaction systems: Mathematical modelling and simulation : proceedings of the second workshop, Heidelberg, Fed. Rep. of Germany, August 11-15, 1986. Springer-Verlag, 1987.

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Book chapters on the topic "Rop Complex"

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Shapiro, Michael J., Michael P. Blair, and Sarah Hilkert Rodriguez. "ROP Treatment in Complex Presentation." In Pediatric Vitreoretinal Surgery. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-14506-3_18.

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Higashihara, Tomoya, and Mitsuru Ueda. "Block Copolymers Containing Rod Segments." In Complex Macromolecular Architectures. John Wiley & Sons (Asia) Pte Ltd, 2011. http://dx.doi.org/10.1002/9780470825150.ch13.

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Kuo, Chi-Ching, Cheng-Liang Liu, and Wen-Chang Chen. "Morphologies and Photophysical Properties of Conjugated Rod-Coil Block Copolymers." In Complex Macromolecular Architectures. John Wiley & Sons (Asia) Pte Ltd, 2011. http://dx.doi.org/10.1002/9780470825150.ch19.

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Molday, Robert S., René Warren, Chris Loewen, and Laurie Molday. "Cyclic GMP-Gated Channel and Peripherin/rds-rom-1 Complex of Rod Cells." In Novartis Foundation Symposium 224 - Rhodopsins and Phototransduction. John Wiley & Sons, Ltd., 2007. http://dx.doi.org/10.1002/9780470515693.ch14.

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Afanassieff, Marielle, Ronald M. Goto, Jennifer Ha, et al. "Are chicken Rfp-Y class I genes classical or non-classical?" In Major Histocompatibility Complex. Springer Japan, 2000. http://dx.doi.org/10.1007/978-4-431-65868-9_17.

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Sharma, Sahil, and Cynthia M. Sharma. "Identification of RNA Binding Partners of CRISPR-Cas Proteins in Prokaryotes Using RIP-Seq." In Methods in Molecular Biology. Springer US, 2021. http://dx.doi.org/10.1007/978-1-0716-1851-6_6.

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AbstractCRISPR-Cas systems consist of a complex ribonucleoprotein (RNP) machinery encoded in prokaryotic genomes to confer adaptive immunity against foreign mobile genetic elements. Of these, especially the class 2, Type II CRISPR-Cas9 RNA-guided systems with single protein effector modules have recently received much attention for their application as programmable DNA scissors that can be used for genome editing in eukaryotes. While many studies have concentrated their efforts on improving RNA-mediated DNA targeting with these Type II systems, little is known about the factors that modulate p
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Keech, Catherine L., Tom P. Gordon, and James McCluskey. "Tolerance and Immunity to the Ro/La RNP Complex." In Autoantibodies and Autoimmunity. Wiley-VCH Verlag GmbH & Co. KGaA, 2006. http://dx.doi.org/10.1002/3527607854.ch19.

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Xu, Kuo, Jian Wang, and Byonghyo Shim. "The RIP for Random Matrices with Complex Gaussian Entries." In Lecture Notes in Electrical Engineering. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-40861-8_3.

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Cao, Xuyang, Zhihe Xu, and Siqi Wang. "Research on the Swing Characteristics of Lifting Load Based on the Contact Relationship Between Pulley and Wire Rope." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1876-4_55.

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AbstractIn the process of lifting operations, the complex contact relationship of the rope-pulley system is inevitably related to the swing of the lifting load. However, in previous research, the quality of the pulley and wire rope is often overlooked and the wire rope is simplified as a spring. The object of this paper is to use virtual prototyping technology to establish the rope-pulley system model that the mass and contact relationship of the pulley and wire rope are considered, and to investigate the influence of the contact relationship of the rope-pulley system on the swing characterist
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Sperling, Ruth, and Joseph Sperling. "The InRNP Particle — A Naturally Assembled Complex of Pre-mRNA and Splicing Factors." In RNP Particles, Splicing and Autoimmune Diseases. Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-642-80356-7_2.

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Conference papers on the topic "Rop Complex"

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Youssef, Amir Shokry, Salaheldin Elkatatny, Abdulazeez Abdulraheem, and Talal Al-Shafloot. "Enhanced Rate of Penetration Prediction for Complex Bottom Hole Assemblies Using Advanced Artificial Intelligence Techniques." In GOTECH. SPE, 2025. https://doi.org/10.2118/224471-ms.

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Abstract Accurate Rate of Penetration (ROP) prediction is critical in drilling operations to optimize performance and reduce costs. The use of eccentric reamer bottom hole assemblies (BHAs) adds complexity due to the dual cutting structures involved, increasing the challenge of accurately predicting ROP. Traditional models often fail to capture the intricate dynamics of such configurations. Recent advances in artificial intelligence (AI) offer new possibilities for improving ROP prediction and optimizing drilling parameters in real-time. The objective of this study was to develop robust AI mod
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Liu, Yang, Yang Xi, Xingyun Xiang, Tianshou Ma, and Sitong Chen. "Data-Driven Models for Predicting Rate of Penetration Based on Machine Learning Algorithms." In 57th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2023. http://dx.doi.org/10.56952/arma-2023-0327.

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ABSTRACT Data-driven models are used extensively for predicting rate of penetration (ROP). However, what data-driven algorithm is best suited to ROP prediction is currently undecided. In this paper, the data-driven model based on back propagation neural network (BP-ANN) and random forest (RF) algorithms are proposed respectively to predict ROP. The features that include both the engineering and formation parameters are selected as the model inputs by combining physical drilling laws and correlation analysis. The optimal hyperparameter combinations of the model are found by cross-validation. Th
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Ochije, Uchenna Blesseth, Jan Einar Gravdal, Hamed Sahebi, and Dan Sui. "Rate of Penetration Optimization With Data Analytics Using Dynamic Trend Analysis." In ASME 2024 43rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/omae2024-124838.

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Abstract In drilling operations, optimizing the rate of penetration (ROP) remains a complex challenge due to the multifaceted interplay of dynamic drilling parameters and inherent uncertainties in subsurface formation properties. This study introduces a pioneering approach to ROP optimization through the implementation of a Moving Window Trend Analysis (MWTA) technique. The MWTA method enables real-time extraction and classification of ROP trends, providing drillers with crucial insights for enhanced decision-making and control to improve drilling efficiency and optimize drilling performance.
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Zhu, Wenchao, Yu Song, Li Zhang, et al. "A Hybrid Deep Learning Approach for Rate of Penetration Prediction in Deepwater Drilling." In Offshore Technology Conference. OTC, 2025. https://doi.org/10.4043/35771-ms.

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Abstract Accurate prediction of the rate of penetration (ROP) is essential for optimizing deepwater drilling operations, enhancing efficiency, and reducing costs. Traditional ROP models often rely on empirical correlations and statistical methods, which do not adequately capture the complex nonlinear interactions between drilling parameters or meet real-time prediction requirements. This study proposes a novel approach that integrates real-time drilling data with feature selection and deep learning techniques to improve ROP prediction accuracy in challenging deepwater environments. The propose
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Ma, Baodong, Zhaopeng Zhu, Xianzhi Song, Chengkai Zhang, and Zihao Liu. "Real-Time Prediction of Rate of Penetration Using Multi-Gene Genetic Programming." In ASME 2024 43rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/omae2024-127358.

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Abstract The rate of penetration (ROP) is a crucial metric for assessing drilling efficiency. However, the ROP prediction models based on conventional machine learning have high accuracy but poor interpretability, and the offline models make it difficult to capture the dynamic impact of formation and drilling condition changes on ROP. In this paper, a real-time prediction method for ROP using multi-gene genetic programming (MGGP) algorithm is proposed. First, outliers and non-drilling conditions data are eliminated. Through the multicollinearity analysis, seven mud logging variables, weight on
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Khan, Mohammad Rasheed, Ahmed Sadeed, Shams Kalam, et al. "Integration of Formation and Drilling Parameters to Generate a Deterministic ROP Model." In Offshore Technology Conference. OTC, 2022. http://dx.doi.org/10.4043/32111-ms.

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Abstract Drilling performance is greatly driven by the rate of penetration (ROP) and its optimization. Therefore, accurate prediction of ROP before drilling can help take measures to achieve drilling objectives smoothly. Numerous inter-twined formation and drilling parameters affect the ROP. Consequently, optimizing and predicting ROP is a complex challenge faced by the industry. This study proposes a novel computational intelligence-based (CI) model to predict ROP as a function of multiple readily available mud- and petrophysical- logs. Furthermore, multiple algorithms are utilized, and a com
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Khan, Mohammad Rasheed, Ahmed Sadeed, Shams Kalam, et al. "Integration of Formation and Drilling Parameters to Generate a Deterministic ROP Model." In Offshore Technology Conference. OTC, 2022. http://dx.doi.org/10.4043/32111-ms.

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Abstract Drilling performance is greatly driven by the rate of penetration (ROP) and its optimization. Therefore, accurate prediction of ROP before drilling can help take measures to achieve drilling objectives smoothly. Numerous inter-twined formation and drilling parameters affect the ROP. Consequently, optimizing and predicting ROP is a complex challenge faced by the industry. This study proposes a novel computational intelligence-based (CI) model to predict ROP as a function of multiple readily available mud- and petrophysical- logs. Furthermore, multiple algorithms are utilized, and a com
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Pan, Tao, Xianzhi Song, Zheng Wang, et al. "An Intelligent Prediction Method of Horizontal Well ROP Based on Di-GRU." In 57th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2023. http://dx.doi.org/10.56952/arma-2023-0405.

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ABSTRACT At present, with the continuous development of unconventional oil and gas exploration and development, horizontal wells, as an important means of unconventional oil and gas exploitation, have attracted much attention from drilling teams and oil field companies. However, the cost of horizontal well drilling is relatively high, so more targeted construction should be carried out according to the characteristics of horizontal well drilling. Therefore, rate of penetration (ROP) prediction of horizontal wells is extremely important. The current ROP prediction models of horizontal wells mai
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Ma, Zhengchao, Maoya Hsu, Hao Hu, et al. "Hybrid Strategies for Interpretability of Rate of Penetration Prediction: Automated Machine Learning and SHAP Interpretation." In 58th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2024. http://dx.doi.org/10.56952/arma-2024-0315.

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ABSTRACT: Accurate prediction of rate of penetration (ROP) during petroleum drilling is crucial to optimize and guide field operations. However, due to the complex nonlinear relationship between drilling parameters and ROP, traditional empirical models often struggle to accurately predict ROP. This study introduces an automated machine learning (AutoML) for ROP prediction and utilizes SHAP (SHapley Additive exPlanations) to interpret the prediction results. The workflow framework based on this collaborative prediction strategy enables automated processing of data and automatic stacking ensembl
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Ismail, Mohamed. "Progressive Modeling and the Reconfiguration and Operations Planning Problem." In ASME 2013 International Manufacturing Science and Engineering Conference collocated with the 41st North American Manufacturing Research Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/msec2013-1231.

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In this paper, the progressive modeling approach and the Reconfiguration and Operation Planning (ROP) problem are introduced. Progressive Modeling (PM) is a forward-looking multi-disciplinary modeling approach that has been developed to modernize the modeling process of today’s complex industrial problems and create pragmatic solutions for many of them. Many principles and foundations of progressive modeling will be presented while utilizing the reconfiguration and operation planning problem (ROP) as a demonstrating application. The ROP problem describes a new approach of reconfiguration and o
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Reports on the topic "Rop Complex"

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Horrocks, Ian, and Ulrike Sattler. Decidability of SHIQ with Complex Role Inclusion Axioms. Technische Universität Dresden, 2002. http://dx.doi.org/10.25368/2022.124.

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Motivated by medical terminology applications, we investigate the decidability of an expressive and prominent DL, SHIQ, extended with role inclusion axioms of the form RoS⊑T. It is well-known that a naive such extension leads to undecidability, and thus we restrict our attention to axioms of the form RoS⊑R or SoR⊑R, which is the most important form of axioms in the applications that motivated this extension. Surprisingly, this extension is still undecidable. However, it turns out that restricting our attention further to acyclic sets of such axioms, we regain decidability. We present a tableau
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McElwain, Terry, Eugene Pipano, Guy Palmer, Varda Shkap, Stephen Hines, and Douglas Jasmer. Protection of Cattle Against Babesiosis: Immunization with Recombinant DNA Derived Apical Complex Antigens of Babesia bovis. United States Department of Agriculture, 1995. http://dx.doi.org/10.32747/1995.7612835.bard.

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Bovine babesiosis caused by Babesia bovis continues to be a significant deterrent to global livestock production. Current control methods have both biological and technical drawbacks that have stimulated research on improved methods of vaccination. This BARD project has focused on characterization of candidate Babesia bovis vaccine antigens located in the apical complex, a unique group of subcellular organelles - including rhoptries, micronemes, and spherical bodies - involved in the invation of erythrocytes. Spherical bodies and rhoptries were partially purified and their contents characteriz
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Paneva-Konovska, Jordanka. Series in Le Roy Type Functions: Theorems in the Complex Plane. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, 2021. http://dx.doi.org/10.7546/crabs.2021.03.02.

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McElwain, Terry F., Eugene Pipano, Guy H. Palmer, Varda Shkap, Stephn A. Hines, and Wendy C. Brown. Protection of Cattle against Babesiosis: Immunization against Babesia bovis with an Optimized RAP-1/Apical Complex Construct. United States Department of Agriculture, 1999. http://dx.doi.org/10.32747/1999.7573063.bard.

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Previous research and current efforts at control of babesiosis fall short of meeting the needs of countries where the disease is endemic, such as Israel, as well as the needs of exporting countries and countries bordering on endemic areas, such as the U.S. Our long-term goal is to develop improved methods of immunization against bovine babesiosis based on an understanding of the molecular mechanisms of immune protection and parasite targets of a protective immune response. In our previous BARD project, we established the basis for focusing on rhoptry antigens as components of a subunit vaccine
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Norton, Jack. The Activation of Hydrogen by First-Row Transition-Metal Complexes. Office of Scientific and Technical Information (OSTI), 2020. http://dx.doi.org/10.2172/1604425.

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Palomino Potes, Heidys, and Catalina Olaya-López. Rol de enfermería en las alteraciones electrocardiográficas. Ediciones Universidad Cooperativa de Colombia, 2021. http://dx.doi.org/10.16925/gcgp.39.

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El profesional de enfermería que se desempeña en el ámbito clínico o comunitario se enfrenta diariamente a la atención de personas con múltiples alteraciones en su estado de salud, lo cual requiere acciones complejas de cuidado. En muchas ocasiones, el equipo interdisciplinario de enfermería es el primero en detectar una alteración electrocardiográfica y su actuación puede ser fundamental en la evolución del paciente. El electrocardiograma ECG de 12 derivaciones es una herramienta útil para el diagnóstico de síndromes coronarios agudos y arritmias en el servicio de urgencias. Cada alteración e
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Bachmayer, Ralf, and Nicolas Nowald. Coordinated Multi-Domain Persistent Observation Systems at the Ligurian Slope, Western Mediterranean Sea - Cruise No. AL534, 21.2.2020 – 3.3.2020, La Seine sur Mer (France) – Malaga (Spain), COMPEL. GEOMAR Helmholtz Centre for Ocean Research Kiel, 2024. https://doi.org/10.3289/cr_al534.

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After loading on the 21. February the RV ALKOR left the La Seine sur Mer on the morning of the 22. February toward the first operating area at the St. Tropez canyon in the Ligurian Sea. ALKOR arrived in the early afternoon and the ROV MARUM SQUID was lowered, carrying a seafloor optical observation node for short range optical underwater communication and data transmission tests under various environmental conditions. The following day two more ROV dives were performed, ROV MARUM SQUID dive #48 was dedicated to an optical survey of the area of operation (~100m2) with the ROVs standard camera s
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Jones, Thomas, Richard Strachan, David Mackie, Mervyn Cooper, Brian Frame, and Jan Vorstius. Phase Field & Monte Carlo Potts Simulation of Grain Growth and Morphology of Vertically Upwards Cast Oxygen Free Copper. University of Dundee, 2021. http://dx.doi.org/10.20933/100001287.

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A 2-D Phase-Field coupled Monte Carlo-Potts model, using PhasePot of vertically upwards continuous casting (VUCC) of oxygen free copper (OFCu) was investigated to reveal the grain growth morphology and the withdrawal parameters required to produce a high-quality homogeneity within the grain structure. A dynamic moving reference frame was used as an approximation to the complex withdrawal parameters. The simulation results were validated alongside cast rod grain structures produced under the same cast parameters, at Rautomead Ltd on a RS080 VUCC machine.
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Kistler, Harold Corby, and Talma Katan. Identification of DNA Unique to the Tomato Fusarium Wilt and Crown Rot Pathogens. United States Department of Agriculture, 1995. http://dx.doi.org/10.32747/1995.7571359.bard.

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Wilt and crown rot are two important diseases of tomato caused by different strains ("formae speciales") of the fungus, Fusarium oxysporum. While both pathogens are members of the same fungal species, each differs genetically and resistance to the diseases is controlled by different genes in the plant. Additionally, the formae speciales differ in their ecology (e.g. optimal temperature of disease development) and epidemiology. Nevertheless, the distinction between these diseases based on symptoms alone may be unclear due to overlapping symptomatology. We have found in our research that the amb
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Annunziato, Dom. High-Performance Liquid Chromatography Analysis of Psilocybin-Containing Mushrooms: Key Considerations and Insights. GenTech Scientific LLC, 2023. http://dx.doi.org/10.61073/gentech.hplc.top.5.

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HPLC analysis of psilocybin-containing mushrooms is a complex process that requires careful attention to detail. In this scientific summary, Doma Nunzio1, MagicMyco C.S.O., offers insight and new answers to some old questions about these magic fungi. Based on his dedicated research and progress in the field, here are his top five things to keep in mind when conducting HPLC-UV analysis in reverse phase ‘RP Mode’ for psilocybin-containing mushrooms.
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