Relevant bibliographies by topics / ECD detection

Contents

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

Academic literature on the topic 'ECD detection'

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

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Journal articles on the topic "ECD detection"

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Lee, Arthur S., Moo-Ki Hong, and Albert E. Smith. "Improved Esterification of Mecoprop for Sensitive Detection on Capillary Gas Chromatography with Mass Selective and Electron Capture Detection." Journal of AOAC INTERNATIONAL 77, no. 5 (1994): 1077–83. http://dx.doi.org/10.1093/jaoac/77.5.1077.

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Abstract Analytical methods for determination of the derivatives of the herbicide mecoprop, (±)-2-(4-chloro-2-methylphenoxy)propionic acid (MCPP), by capillary column gas chromatography with mass selective detection (GC-MSD) and electron capture detection (GC-ECD) were studied. A successful procedure was introduced for the ester preparation using H2SO4 as the catalyst and the alcohols 2,2,2-trichloroethanol (TCE) or 2,2,2-tri-fluoroethanol (TFE). The identification and elucidation of MCPP by GC-MSD following the esterifica-tion with diazomethane, BF3-methanol, H2SO4-methanol, TCE, TFE, or pent
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Diamond, Eli L., Elena Pentsova, Laetitia Borsu, April E. Chiu, David Michael Hyman, and Marc Rosenblum. "Detection of the NRAS Q61R mutation in Erdheim-Chester disease." Journal of Clinical Oncology 31, no. 15_suppl (2013): 7120. http://dx.doi.org/10.1200/jco.2013.31.15_suppl.7120.

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7120 Background: There is a high frequency of activating mutations in proteins of the Ras/Raf/MEK/ERK pathway in melanoma and other solid tumors. The BRAF V600E mutation has been found recently to be highly prevalent in ECD, a rare non-Langerhans cell histiocytosis with poor prognosis, as well as Langerhans cell histiocytosis (LCH). Treatment of patients with ECD and the BRAF V600E mutation with vemurafenib has been associated with unprecedented and dramatic response in a few cases. Methods: We present a 66 year-old man evaluated for several months of cognitive and motor decline. He was found
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Muñoz, Marcelo A., María A. Bucio, and Pedro Joseph-Nathan. "Chiroptical Studies of Flavanone." Natural Product Communications 8, no. 8 (2013): 1934578X1300800. http://dx.doi.org/10.1177/1934578x1300800810.

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Chiral HPLC coupled to electronic circular dichroism and laser optical rotation detection (HPLC-ECD-OR) permitted the on-line chiroptical characterization of both enantiomers of racemic flavanone (1) as ECD(-)310-OR(-)670-flavanone and ECD(+)310-OR(+)670-flavanone for the first and second eluted peaks, respectively. Calculation of the ECD spectrum of one enantiomer at the TD-DFT/DGTZVP level of theory yielded the ( S)-ECD(-)310-OR(-)670 and ( R)-ECD(+)310-OR(+)670-1 absolute configuration, in agreement with the use of empirical rules for stereochemical assignment. Vibrational circular dichrois
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Nunes, Raquel A., Xiaochun Li, Soonmo Peter Kang, et al. "Circulating Tumor Cells in HER-2 Positive Metastatic Breast Cancer Patients Treated with Trastuzumab and Chemotherapy." International Journal of Biological Markers 24, no. 1 (2009): 1–10. http://dx.doi.org/10.1177/172460080902400101.

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The detection of circulating tumor cells (CTCs) in peripheral blood may have important prognostic and predictive implications in breast cancer treatment. A limitation in this field has been the lack of a validated method of accurately measuring CTCs. While sensitivity has improved using RT-PCR, specificity remains a major challenge. The goal of this paper is to present a sensitive and specific methodology of detecting CTCs in women with HER-2-positive metastatic breast cancer, and to examine its role as a marker that tracks disease response during treatment with trastuzumab-containing regimens
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HIRAHARA, YOSHICHIKA, YUKARI TSUMURA, YUMIKO NAKAMURA, YASUHIDE TONOGAI, and TADASHI SHIBATA. "Analysis of Phenothrin and Its Metabolite 3-Phenoxybenzoic Acid (PBA) in Agricultural Products by GC and Ion-Trap GC/MS." Journal of Food Protection 60, no. 3 (1997): 305–8. http://dx.doi.org/10.4315/0362-028x-60.3.305.

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A sensitive method for analysis of phenothrin and its metabolite 3-phenoxybenzoic acid (PBA) in agricultural products by gas chromatography with electron capture detection (ECD-GC) and ion-trap gas chromatography/mass spectrometry (GC/MS) with chemical ionization (Cl) was investigated. After phenothrin in vegetables, fruits, potatoes, starches, and tea had been extracted with acetone, or in cereals and beans had been extracted with acetonitrile followed by Florisi! column chromatography, it was reextracted into n-hexane. PBA was determined by ECD-GC after esterification with hexafluoroisopropy
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Hideharu, Shintaniq. "Toxic Compounds Analysis With High Performance Liquid Chromatography Detected By Electro Chemical Detector (Ecd)." International Journal of Clinical Pharmacology & Toxicology 3, no. 3 (2014): 121–27. https://doi.org/10.19070/2167-910X-1400022.

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The principal area of application of high performance liquid chromatography-electrochemical detector (HPLC-ECD) has been in the analysis of naturally-occurring analytes, such as catecholamines, and pharmaceuticals in biological samples, HPLC-ECD has also applied to the analysis of pesticides and other analytes of interest to the toxicologist. In this paper, toxic area is described. In these, ammatoxins, aromatic amine, nitro-compounds, algal toxins, fungal toxins, pesticides, veterinary drug and food residues will be concretely described.
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Carney, Walter P., Rainer Neumann, Allan Lipton, Kim Leitzel, Suhail Ali, and Christopher P. Price. "Potential Clinical Utility of Serum HER-2/neu Oncoprotein Concentrations in Patients with Breast Cancer." Clinical Chemistry 49, no. 10 (2003): 1579–98. http://dx.doi.org/10.1373/49.10.1579.

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Abstract Background: The HER-2/neu oncogene and its p185 receptor protein are indicators of a more aggressive form of breast cancer. HER-2/neu status guides Herceptin therapy, specifically directed to the extracellular domain (ECD) of the HER-2/neu oncoprotein. The HER-2/neu ECD is shed from cancer cells into the circulation and is measurable by immunoassay. Methods: We performed a systematic review of the peer-reviewed literature on circulating ECD with respect to prevalence, prognosis, prediction of response to therapy, and monitoring of breast cancer. Results: The prevalence of increased EC
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Wu, Fanhua, Fangrui Xu, Wen Liu, et al. "A High-Performance Liquid Chromatography with Electrochemical Detection Method Developed for the Sensitive Determination of Ascorbic Acid: Validation, Application, and Comparison with Titration, Spectrophotometric, and High-Performance Liquid Chromatography with Diode-Array Detection Methods." Foods 12, no. 16 (2023): 3100. http://dx.doi.org/10.3390/foods12163100.

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L-ascorbic acid (vitamin C, VC), an essential nutrient obtained from the diet to maintain various vital signs for the human body, is a crucial indicator of food quality and nutritional value. Herein, high-performance liquid chromatography with electrochemical detection (HPLC-ECD) was developed and validated with the advantages of higher sensitivity, simpler operation processes, and more rapid detection in measuring VC levels in honey samples when compared with the common methods (titration, spectrophotometric, and HPLC-DAD methods). The results of the HPLC-ECD methodological validation showed
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翟, 志强. "Studies on Detection of Amphetamines by Gas Chromatography/ECD." Hans Journal of Chemical Engineering and Technology 04, no. 06 (2014): 79–85. http://dx.doi.org/10.12677/hjcet.2014.46011.

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Thyagarajan, C., S. Vijay Bhanu, and S. Suthir. "Hybrid ECD model for firewall tuning and attack detection." International Journal of Wireless and Mobile Computing 28, no. 1 (2025): 86–102. https://doi.org/10.1504/ijwmc.2025.143030.

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Dissertations / Theses on the topic "ECD detection"

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Last, Thorsten. "Robust PQRST Complex Detection in ECG Signals." Thesis, Ulster University, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.485937.

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A study of computerised interpretation of the electrocardiogram (ECG) with the main focus on the pre-processing stage of beat detection is presented in this thesis. The accuracy of ECG classification and analysis is strongly dependent on the results of the beat detection process. The purpose of this research is to further improve, both in terms of accuracy and reliability, beat detection in ECG signal processing. A new concept of multi-component based beat detection is presented based on the two different approaches of cross-correlation (CC) and neural networks (NN). The performance of the two
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Kratsas, Sherry L. "Parallelization of ECG template-based abnormality detection." Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1697.

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Thesis (M.S.)--West Virginia University, 2000.<br>Title from document title page. Document formatted into pages; contains vii, 62 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 61-62).
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Häubner, Norbert. "Dynamics of astaxanthin, tocopherol (Vitamin E) and thiamine (Vitamin B1) in the Baltic Sea ecosystem : Bottom-up effects in an aquatic food web." Doctoral thesis, Uppsala universitet, Ekologisk botanik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-130143.

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The thesis combines laboratory experiments and field expeditions to study production, transfer and consumption of non-enzymatic antioxidants and thiamine in an aquatic food web. In particular, I (1) documented spatial and seasonal variation of tocopherols and carotenoids in the Baltic Sea pelagic food web, and (2) examined the effects of abiotic and biotic factors on tocopherol, carotenoid and thiamine concentrations in phytoplankton, zooplankton and fish. Moderate differences in temperature and salinity affected α-tocopherol, β-carotene and thiamine production in microalgae. Furthermore, the
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Valluri, Sasanka. "DETECTION OF THE R-WAVE IN ECG SIGNALS." Master's thesis, University of Central Florida, 2005. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2122.

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This thesis aims at providing a new approach for detecting R-waves in the ECG signal and generating the corresponding R-wave impulses with the delay between the original R-waves and the R-wave impulses being lesser than 100 ms. The algorithm was implemented in Matlab and tested with good results against 90 different ECG recordings from the MIT-BIH database. The Discrete Wavelet Transform (DWT) forms the heart of the algorithm providing a multi-resolution analysis of the ECG signal. The wavelet transform decomposes the ECG signal into frequency scales where the ECG characteristic waveforms are
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Yerra, Rajiv. "Detecting Similar HTML Documents Using A Sentence-Based Copy Detection Approach." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd977.pdf.

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Jackson, Lance Elliot. "Automated detection of frequency specific fluctuations in ECG morphology." Thesis, Massachusetts Institute of Technology, 1990. http://hdl.handle.net/1721.1/72282.

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Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1991.<br>Includes bibliographical references (leaves 50-51).<br>by Lance Elliot Jackson.<br>B.S.
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Bin, Hashim Fakroul Ridzuan. "Novel ECG analysis with application to atrial fibrillation detection." Thesis, University of Strathclyde, 2016. http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=27925.

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A new approach of electrocardiography (ECG) analysis system is developed to process noisy ECG signals leading for improved arrhythmia detection. The system employs two processing units comprising a novel noise reduction unit and a novel pattern recognition unit. Each unit incorporates numbers of processing techniques. In the noise reduction unit, the ECG signal is denoised before proceeding to the next stage. Four main noises contaminating the ECG signal are considered that includes baseline wander (BW), powerline interference (PLI), electromyogram (EMG) and motion artifact (MA). For BW and MA
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Stantic, Dejan. "Abnormality Detection from ECG Signals Using Multiscale Wavelet Analysis." Thesis, Griffith University, 2017. http://hdl.handle.net/10072/367263.

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Cardiovascular disease is the number one cause of mortality in the western world, responsible for more than 16 million deaths annually worldwide. It can be diagnosed from Electro Cardiogram (ECG) signal, which captures the cardiac activities of the heart. Such signal apart of a large volume and velocity is often characterised by low quality due to the noise and other artefacts. In order to extract features from the ECG signal and perform the classication preprocessing, noise removal is required and it plays an important role in correct feature extraction and classication. Despite the signicant
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Koc, Bengi. "Detection And Classification Of Qrs Complexes From The Ecg Recordings." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/2/12610328/index.pdf.

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Electrocardiography (ECG) is the most important noninvasive tool used for diagnosing heart diseases. An ECG interpretation program can help the physician state the diagnosis correctly and take the corrective action. Detection of the QRS complexes from the ECG signal is usually the first step for an interpretation tool. The main goal in this thesis was to develop robust and high performance QRS detection algorithms, and using the results of the QRS detection step, to classify these beats according to their different pathologies. In order to evaluate the performances, these algorithms were teste
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Pandit, Diptandshu. "Intelligent ECG processing and abnormality detection using adaptive ensemble models." Thesis, Northumbria University, 2017. http://nrl.northumbria.ac.uk/36139/.

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This thesis explores the automated Electrocardiogram (ECG) signal analysis and the feasibility of using a set of computationally inexpensive algorithms to process raw ECG signals for abnormality detection. The work is divided into three main stages which serve towards the main aim of this research, i.e. the abnormality detection from single channel raw ECG signals. In the first stage, a lightweight baseline correction algorithm is proposed along with a modified moving window average method for real-time noise reduction. Additionally, for further offline analysis, a wavelet transform and adapti
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Books on the topic "ECD detection"

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McKeown, Charles. The detection of late potentials in ECG waveforms. The author], 1985.

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H, Li David. Chess detective: Kriegspiel strategies, endgames, and problems. Premier Pub., 1995.

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Martín, Jorge Hernández. Readers and labyrinths: Detective fiction in Borges, Bustos Domecq, and Eco. Garland Pub., 1995.

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Spinazzola, Vittorio. Misteri d'autore: Gadda, Fruttero e Lucentini, Eco. N. Aragno, 2010.

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George, Jean Craighead. The case of the missing cutthroats: An eco mystery. HarperTrophy, 1999.

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George, Jean Craighead. The case of the missing cutthroats: An eco mystery. HarperTrophy, 1999.

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Coletti, Theresa. Naming the rose: Eco, medieval signs, and modern theory. Cornell University Press, 1988.

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Delaney, Mark. The kingfisher's tale. Peachtree, 2000.

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Nazarov, Dmitriy, and Anton Kopnin. Information technologies in professional activity: data mining and business analytics. INFRA-M Academic Publishing LLC., 2024. http://dx.doi.org/10.12737/2110964.

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The textbook offers a comprehensive look covering a wide range of topics related to the role of information technology in the modern world. Starting with an overview of the history of information technology and its evolution, the book introduces the reader to professions in the field of information and digital technologies, emphasizing them in various professional fields. The content of the textbook includes a detailed analysis of key concepts such as Data Science, Data Mining and Machine Learning, and their role in healthcare, law, education, science and business. The textbook provides a deta
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Hughes, Declan. The wrong kind of blood. William Morrow, 2006.

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Book chapters on the topic "ECD detection"

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Qu, Yi, Yixuan Zhou, and Guofeng Yi. "ECD: Event-Centric Disentangler for Weakly Supervised Video Anomaly Detection." In Communications in Computer and Information Science. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-2911-4_19.

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Papp, Laszlo, Maaz Zuhayra, and Eberhard Henze. "Semi-automatic Epileptic Hot Spot Detection in ECD brain SPECT images." In Bildverarbeitung für die Medizin 2009. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-93860-6_62.

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Schröder, W., and G. Matz. "Wood Preservatives on Waste Wood: Fast Detection with GC/MS, GC/ECD and Ion Mobility Spectrometry (IMS)." In Field Screening Europe. Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-009-1473-5_80.

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Hribar, Rok, and Drago Torkar. "Explainable Anomaly Detection of 12-Lead ECG Signals Using Denoising Autoencoder." In Intelligent Secure Trustable Things. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-54049-3_7.

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AbstractAnomaly detection is an important task in the field of medical diagnostics, especially when it comes to ECG signals. Anomalies in ECG signals can be indicative of various cardiac conditions, such as arrhythmias, atrial fibrillation, ventricular tachycardia, and other, possibly life threatening, cardiac diseases. In medicine AI-assisted anomaly detection is favorable compared to diagnoses prediction because it can identify all out-of-the-ordinary patterns and not only those that are well represented in the available data bases. Also, AI-assisted anomaly detection can help reduce the ris
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Akselrod, Solange, Jacob Karin, and Michael Hirsch. "Fetal ECG Detection and Applications." In Advances in Processing and Pattern Analysis of Biological Signals. Springer US, 1996. http://dx.doi.org/10.1007/978-1-4757-9098-6_20.

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Babusiak, Branko, and Michal Gala. "Detection of Abnormalities in ECG." In Information Technologies in Biomedicine. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-31196-3_17.

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Kintis, Panagiotis, Yacin Nadji, David Dagon, Michael Farrell, and Manos Antonakakis. "Understanding the Privacy Implications of ECS." In Detection of Intrusions and Malware, and Vulnerability Assessment. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-40667-1_17.

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Chaudhuri, Subhasis, Siddhartha Duttagupta, and Tanmay D. Pawar. "Detection of Activity Transition." In Ambulation Analysis in Wearable ECG. Springer US, 2009. http://dx.doi.org/10.1007/978-1-4419-0724-0_6.

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Joshi, Shilpa S., and Prerana Shrivastava. "ECG beat detection using wavelet denoising." In Thinkquest~2010. Springer India, 2011. http://dx.doi.org/10.1007/978-81-8489-989-4_2.

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Zhang, Ruizhong, and Zhifeng Ding. "Chapter 10. ECL Detection of Nanoparticles." In Analytical Electrogenerated Chemiluminescence. Royal Society of Chemistry, 2019. http://dx.doi.org/10.1039/9781788015776-00274.

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Conference papers on the topic "ECD detection"

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Al-Oadah, Awadh O., Waleed A. Borjailah, Joerg Damaschke, Thomas Beuker, and Mohammed Jaarah. "In-Line Inspection with High Resolution EMAT Technology Crack Detection and Coating Disbondment." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07131.

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Abstract An in-line inspection tool for the detection of stress corrosion cracking (SCC) and coating disbondment based on electro-magnetic acoustic transducers was developed, following a high-resolution approach. After having successfully tested this 16’’ EMAT Crack Detection (ECD) tool thoroughly in sample pipes containing real SCCs and various types of artificial defects, first runs - one in a gas pipeline and another one in an oil pipeline - were performed that proved the performance of the approach under operational conditions. This article introduces some parts of the data evaluation proc
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Lutfallah, Muhammed H., Tamim O. Felemban, Ahmed F. Alrashidi, Yasser S. AlSubhi, Qasem A. Fandem, and Randal S. Batiste. "Advancement in Asset Integrity Management through Digitalized Eddy Current Testing Technology for Corrosion Cracking Inspections." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-19049.

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Abstract Inspection of surface and near-surface indications has been always a challenge in the oil and gas industry due to the limitations of the commonly utilized conventional Nondestructive Testing (NDT) methods and their implementation difficulties such as surface preparation requirements, reliance on operator skills, slow deployment and inability to archive inspection data. Keeping pace with industrial revolution (IR) 4.0, Nondestructive testing (NDT) methods have been evolving to be digitized by automated data evaluation and visualization of inspection results while improving detection ca
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Sawada, Kota, Yasushi Taniuchi, Takehiro Nojima, et al. "Nondestructive Detection of Creep Damage in ASME Grade 91 Steel Welds." In AM-EPRI 2024. ASM International, 2024. http://dx.doi.org/10.31399/asm.cp.am-epri-2024p0960.

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Abstract This study evaluates various nondestructive testing methods for detecting creep damage and assessing residual life in Grade 91 steel welds. Three primary detection techniques were investigated: phased array ultrasonic testing (PAUT), eddy current testing with high-temperature superconductor direct current and superconducting quantum interference device (ECT•HTS-dc-SQUID), and replica observation. PAUT detected creep damage between 60-80% of creep life, while ECT•HTS-dc-SQUID showed detection capability between 80-90% of creep life. Replica observation revealed creep voids only in the
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Deák, Krisztián. "Discrete Wavelet Transform and Multiresolution Analysis for the R-Peak Detection of the QRS Complex of ECG Signals." In 10th International Scientific Conference on Advances in Mechanical Engineering. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-kajn3w.

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This paper shows the application of discrete wavelet transform in the analysis of ECG signals to detect R-peaks of the QRS complex. The proper analysis of the ECG signal is crucial to reveal the changes in the waveform to detect heart related diseases. The detection of the P-wave, T-wave, QRS complex is important and the wavelet transform offers a good possibility to recognize the abnormalities. Three different wavelets, Symlet, Coiflet and Daubechies are used for the detection and are compared to choose the most efficient one to identify the R-peaks. Multiresolution analysis (MRA) is used to
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Onuoha, C., S. McDonnell, E. Pozniak, V. Shankar, and S. Oszust. "Coating Anomaly Detection with Integrated Indirect Inspection Tools." In CORROSION 2019. NACE International, 2019. https://doi.org/10.5006/c2019-12810.

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Abstract Assessment of the external coating condition of underground pipelines depends on the use of approved external corrosion direct assessment (ECDA) indirect inspection techniques such as alternating current voltage gradient (ACVG), alternating current attenuation (ACCA) and direct current voltage gradient (DCVG). The efficient application of these techniques (especially ACVG and DCVG) to ensure the optimal detection and prioritization of coating anomalies largely depends on a myriad of factors including depth of cover, probe spacing, current level and soil resistivity. Research and indus
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Raude, Angélique, Michael Sirois, and Mathieu Bouchard. "Stress Corrosion Cracking Direct Assessment of Carbon Steel Pipeline Using Advanced Eddy Current Array Technology." In CORROSION 2018. NACE International, 2018. https://doi.org/10.5006/c2018-11150.

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Abstract In-the-ditch inspection for Stress Corrosion Cracking (SCC) is an integral part of pipeline condition assessment programs. SCC is typically detected by Magnetic Particle Inspection (MPI). Quantitative depth sizing is then either achieved by sequential grinding or by Ultrasonic Testing (UT). This procedure, is time-consuming, weather-sensitive and user-dependant. Recent advances in Eddy-Current Array (ECA) technology enabled crack detection and sizing in ferrous materials. The main objective behind the development of these new probes was to determine the optimal set of parameters to ob
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van Os, M. T., P. van Mastrigt, and G. G. J. Achterbosch. "The Utilization of a Pipeline Integrity Management System for ECDA Management within Gasunie." In CORROSION 2008. NACE International, 2008. https://doi.org/10.5006/c2008-08142.

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Abstract Gasunie has utilized External Corrosion Direct Assessment (ECDA) as proposed by the NACE as a valuable method to assess the corrosion threat to unpiggable pipelines. In addition, a new probabilistic methodology has been adopted to quantify the results of an ECDA and to account for any uncertainties experienced throughout the process. This approach, based on Structural Reliability Analysis (SRA) and Bayesian statistics, uses the data gathered in the pre-assessment to calculate a failure frequency for each ECDA region defined. In the indirect inspections step, the method allows automati
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Nowroozilarki, Zhale, Sicong Huang, Rohan Khera, and Bobak J. Mortazavi. "ECG Abnormality Detection Using MIMIC-IV-ECG Data Via Supervised Contrastive Learning." In 2024 46th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). IEEE, 2024. https://doi.org/10.1109/embc53108.2024.10782909.

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Nivlet, Philippe, Knut Steinar Bjorkevoll, Mandar Tabib, et al. "Towards Real-Time Bad Hole Cleaning Problem Detection Through Adaptive Deep Learning Models." In Middle East Oil, Gas and Geosciences Show. SPE, 2023. http://dx.doi.org/10.2118/213643-ms.

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Abstract Monitoring of Equivalent Circulating Density (ECD) may improve assessment of potential bad hole cleaning conditions if calculated and measured sufficiently accurately. Machine learning (ML) models can be used for predicting ECD integrating both along-string and surface drilling measurements and physics-based model (PBM) results, even though their generalization is often challenging. To remediate this generalizability issue, we present an adaptative predictive deep-learning model that is retrained with new measurements in real-time, conditionally that the new measurements are not detec
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Robinson, T. S., P. Mohammed Arshad, O. E. Revheim, M. Regan, and P. Bekkeheien. "System for Real-Time Rate of Penetration Optimization Using Machine Learning with Integrated Preventive Safeguards Against Hole Cleaning Issues and Stick-Slip." In SPE/IADC International Drilling Conference and Exhibition. SPE, 2025. https://doi.org/10.2118/223713-ms.

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Abstract Drilling related costs can contribute 30-70% of operators’ capital expenditures for well construction. To reduce costs, operators can reduce bit-on-bottom time and flat time. This work describes a drilling optimization advisory system utilizing machine learning (ML) with integrated safeguards for preventing issues that might occur following drilling parameter changes intended to increase rate of penetration (ROP), such as hole cleaning (HC) issues which might lead to stuck pipe, or stick-slip that reduces drilling efficiency. This work builds on the authors’ previous publications on R
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Reports on the topic "ECD detection"

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Lee, Richard N., Brian P. Dockendorff, and Bob W. Wright. Analytical Method for the Detection of Ozone Depleting Chemicals (ODC) in Commercial Products Using a Gas Chromatograph with an Electron Capture Detector (GC-ECD). Office of Scientific and Technical Information (OSTI), 2008. http://dx.doi.org/10.2172/944011.

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Michaels, Trevor. Red-tailed boa (Boa constrictor) surveys at Salt River Bay National Park, St. Croix U.S. Virgin Islands: 2023 report of activities. National Park Service, 2024. http://dx.doi.org/10.36967/2303799.

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St. Croix is home to a variety of threatened and endangered (T&amp;E) species that are at risk for predation by the invasive red-tailed boa (Boa constrictor), such as the St. Croix ground lizard (Amevia polyps), the ground-nesting least tern (Sterna antillarum), and the hawksbill sea turtle (Eretmochelys imbricata). Genetic analysis determined the original red-tailed boa population on St. Croix sourced from a single female released by a pet owner and its range expands every year. Presently, the main population of red-tailed boa is established on the west end of St. Croix and extends as far eas
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จิตยุทธการ, ชาญวิทย์, ปณิตา ชินเวชกิจวานิชย์, สมพงศ์ ฉัตราภรณ์, โศจิพงศ์ ฉัตราภรณ์ та ขจรยศ อยู่ดี. การสร้างเซลล์แสงอาทิตย์ชนิดฟิล์มบาง Cu(In, Ga) Se₂ แบบ mini-module : รายงานการวิจัย พัฒนาและวิศวกรรม ปี่ที่1 ฉบับสมบูรณ์. จุฬาลงกรณ์มหาวิทยาลัย, 2006. https://doi.org/10.58837/chula.res.2006.40.

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งานวิจัยนี้ได้ออกแบบและสร้างระบบเตรียมฟิล์มบางคอปเปอร์อินเดียมแกลเลียมไดซีลิไนด์ Cu(In,Ga) Se₂ (CIGS) เพื่อเป็นชั้นดูดกลืนแสงสำหรับประดิษฐ์เซลล์แสงอาทิตย์ประสิทธิภาพสูงที่มีโครงสร้าง (Ni)A1/ZnO(A1)/CdS/CIGS/Mo/SLG ฟิล์มบาง CIGS ถูกเตรียมบนแผ่นรองรับกระจก soda-lime ที่อุณหภูมิคงที่ประมาณ 500°C ได้ความหนาประมาณ 2 ไมโครเมตร โดยเตรียมด้วยวิธีการระเหยร่วมกันจากแหล่งระเหยธาตุทั้งสี่แหล่งในกระบวนการ bi-layer หรือ two-stage process ในการควบคุมกระบวนการปลูกฟิล์ม ได้ใช้เทคนิคการตรวจวัดสัญญาณ ณ เวลาจริง (in situ monitoring) ได้แก่ อุณหภูมิแผ่นรองรับอุณหภูมิของแกรไฟต์ฮีทเตอร์ กำลังไฟฟ้าที่ระบบควบคุมอุณหภู
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Bercovier, Herve, and Ronald P. Hedrick. Diagnostic, eco-epidemiology and control of KHV, a new viral pathogen of koi and common carp. United States Department of Agriculture, 2007. http://dx.doi.org/10.32747/2007.7695593.bard.

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Original objectives and revisions-The proposed research included these original objectives: field validation of diagnostic tests (PCR), the development and evaluation of new sensitive tools (LC-PCR/TaqManPCR, antibody detection by ELISA) including their use to study the ecology and the epidemiology of KHV (virus distribution in the environment and native cyprinids) and the carrier status of fish exposed experimentally or naturally to KHV (sites of virus replication and potential persistence or latency). In the course of the study we completed the genome sequence of KHV and developed a DNA arra
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Song, He, and McFarland. PR-015-073504-R01 ECDA Techniques for Shorted and Non-shorted Cased Crossings. Pipeline Research Council International, Inc. (PRCI), 2011. http://dx.doi.org/10.55274/r0010732.

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This report contains the results of review of literature related to external corrosion of carrier pipes inside casing, descriptions of related corrosion mechanisms, descriptions of related corrosion detection techniques and methodologies, and the results of cathodic protection shielding and related testing using realistic pipe-casing models. The report additionally contains methodologies for Casing Corrosion Direct Assessment (CCDA) and risk assessment, descriptions of corrosion prevention and remediation methods, descriptions of monitoring techniques, and recommendations for future research.
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Weischedel. L41035 Enhanced Interpretation of MFL to Detect SCC-(SEEC) Method Auxiliary Pole Approach. Pipeline Research Council International, Inc. (PRCI), 1998. http://dx.doi.org/10.55274/r0011243.

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This report deals with a novel and rather unorthodox electromagnetic inspection technique called the Se/f-Excited Eddy Current (SEEC) or Motion Induced Eddy Current (M/EC) method. The SEEC approach promises a surprisingly simple solution for the difficult and long-standing SCC detection, characterization, and discrimination problem.
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Sandness, G. A., and T. L. Stewart. Research, development, demonstration, testing, and evaluation characterization technology project: FY90 year-end report on subsurface detection methods. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/10136225.

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Sandness, G. A., and T. L. Stewart. Research, development, demonstration, testing, and evaluation characterization technology project: FY90 year-end report on subsurface detection methods. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/5380763.

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Hu, Ningning, and Peter Steenkiste. RPT: A Low Overhead Single-End Probing Tool for Detecting Network Congestion Positions. Defense Technical Information Center, 2003. http://dx.doi.org/10.21236/ada461141.

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Lank and Mudge. L51785 Development of Long Range Ultrasonic Methods of Assessing Pipeline Condition. Pipeline Research Council International, Inc. (PRCI), 1997. http://dx.doi.org/10.55274/r0010654.

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The purpose of this phase of the work was to establish the performance of the technique with regard to defect detection, so that its application as a field inspection tool could be assessed. To this end, trials were conducted at the GRI West Jefferson Pipeline Simulation Facility near Columbus, Ohio, on a 24in. diameter specimen, situated in the pull rig, containing 128 controlled, well documented metal loss defects, used primarily to assess resolution of internal inspection tools. : An extensive study was carried out on this specimen, which enabled firm conclusions to be drawn about the defec
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