Relevant bibliographies by topics / Average pore width

Contents

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

Academic literature on the topic 'Average pore width'

Author: Grafiati
Published: 28 May 2022
Last updated: 31 July 2025

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Journal articles on the topic "Average pore width"

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Lobasov, A. S., and A. V. Minakov. "The investigation of the average diameter of the SiO2 nanoparticles effect on the oil displacing efficiency from the pore in the rock formation using nanosuspension as a displacing agent." Journal of Physics: Conference Series 2150, no. 1 (2022): 012025. http://dx.doi.org/10.1088/1742-6596/2150/1/012025.

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Abstract The numerical investigation of the nanofluid flow, which displaced the oil, in a microchannel was carried out. The effect of the average diameter of the SiO2 nanoparticles on the oil displacing efficiency by nanofluids for different sizes of microchannel at various Reynolds numbers was studied. A T-shaped microchannel with a vertical channel, called a pore channel, which imitated the pore in the rock formation was considered as a computational domain. The main flow channel width and height were 200 µm. The width and height of the pore channel were varied in the range from 100 µm to 80
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Guo, Dong, Jocelyn Riet, Assad Khan, et al. "Mesoporous polyetherimide thin films via hydrolysis of polylactide-b-polyetherimide-b-polylactide." Polymer Chemistry 12, no. 27 (2021): 3939–46. http://dx.doi.org/10.1039/d1py00601k.

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Song, Wenlong, Junyu Li, Kexin Li, Jingxu Chen, and Jianping Huang. "An Automatic Method for Stomatal Pore Detection and Measurement in Microscope Images of Plant Leaf Based on a Convolutional Neural Network Model." Forests 11, no. 9 (2020): 954. http://dx.doi.org/10.3390/f11090954.

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Stomata are microscopic pores on the plant epidermis that regulate the water content and CO2 levels in leaves. Thus, they play an important role in plant growth and development. Currently, most of the common methods for the measurement of pore anatomy parameters involve manual measurement or semi-automatic analysis technology, which makes it difficult to achieve high-throughput and automated processing. This paper presents a method for the automatic segmentation and parameter calculation of stomatal pores in microscope images of plant leaves based on deep convolutional neural networks. The pro
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Zhang, Man Cheng, Wei Wang, Cong Jian Huang, and Ai Min Li. "Adsorption Behaviors of Chlortetracycline on Granular Activated Carbons." Advanced Materials Research 610-613 (December 2012): 1701–4. http://dx.doi.org/10.4028/www.scientific.net/amr.610-613.1701.

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The adsorption behaviors of chlortetracycline on two kinds of granular activated carbons with different BET surface area and average pore width have been studied. The results show that larger BET surface area is beneficial for the adsorption capacity, and wider pore structure can enhance the adsorption rate. Initial solution pH has great effect on the adsorption behavior, and the suitable pH for the effective adsorption is from 4 to 8.
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Lobasov, A. S., and A. V. Minakov. "The investigation of the efficiency of oil displacing from the pore in the rock formation depending on the width and height of the pore using nanosuspension as a displacing agent." Journal of Physics: Conference Series 2119, no. 1 (2021): 012052. http://dx.doi.org/10.1088/1742-6596/2119/1/012052.

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Abstract The numerical investigation of the two-phase fluid flow in a microchannel was carried out. The effect of the pore width and height on the oil displacing efficiency by nanofluids for various Reynolds numbers was studied. The computational domain was a T-shaped microchannel with a horizontal main flow channel and a vertical channel that imitated the pore in the rock formation, called a pore channel. The main channel width and height were 200 µm, and the pore channel width and height were varied in the range from 100 µm to 800 µm. The Reynolds number was varied from 0.1 to 100. The main
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Çopur Akpınar, Gülşen, Sema Alaşahan, and Sibel Canoğulları Doğan. "Halk Elinde Yetiştirilen Pekin Ördeklerinde Matematiksel Formüller İle Yumurta Kalite Özelliklerinin Belirlenmesi." Turkish Journal of Agriculture - Food Science and Technology 5, no. 12 (2017): 1470. http://dx.doi.org/10.24925/turjaf.v5i12.1470-1475.1393.

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This study was carried out with the aim of determining some internal and external quality characteristics of pekin duck eggs grown by families living in rural Hatay province by using mathematical formulas. In the study, 417 pekin duck eggs were used and with the help of mathematical formulas based on individual egg weight values, egg length and width, egg surface area, egg shell weight and thickness, pore number, egg yolk ratio values were calculated. Average egg length calculated according to egg weight were determined as 62,48 mm, egg width 43.76 mm, egg shell thickness 0.358 mm, egg shell w
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Xu, Gui Xi, Shu Zhong Wang, Xiang Rong Luo, and Ze Feng Jing. "Investigation on Jurassic Shale Gas Reservoir Characteristics from Northern Qaidam Basin." Key Engineering Materials 748 (August 2017): 441–45. http://dx.doi.org/10.4028/www.scientific.net/kem.748.441.

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The Jurassic continental shale from northern Qaidam basin was selected as the research object, through the analysis of X-ray diffraction (XRD), field emission scanning electron microscopy (SEM) and nitrogen adsorption experiment, the mineral composition and pore structure characteristics of Jurassic continental shale from the northern Qaidam basin have been investigated in detail. All shale samples studied are quite rich in clay minerals. The clay mineral content ranges from 59.8% to 83.3% with an average of 74.6%, and the brittle mineral content accounts for 16.5% to 39.3%. Nitrogen adsorptio
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Chen, Shitong, Jinlei Wang, and Yongfei Yang. "Numerical Simulation of Oil-Water Two-phase Conductivity in Hydraulic Fracturing Considering Proppant Crushing." Journal of Physics: Conference Series 2503, no. 1 (2023): 012026. http://dx.doi.org/10.1088/1742-6596/2503/1/012026.

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Abstract Hydraulic fracturing can effectively increase reservoir productivity, and the effect depends on proppant behavior. Crushing of proppant during fracturing induces a series of changes in fracture width and the pore space formed between proppant particles, affecting reservoir fluid flow. For exploring the flow law of oil and water in proppant fractures, the discrete element method (DEM) and Tavares crushing model were combined to simulate the proppant crush process. At the same time, based on the formed pore space, the flow law of two phase fluid under the influence of such factors as th
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Li, Jia, Ming-Ming Mao, Min Gao, Qiang Chen, Jun-Rui Shi, and Yong-Qi Liu. "A Multi-Scale Numerical Model for Investigation of Flame Dynamics in a Thermal Flow Reversal Reactor." Energies 15, no. 1 (2022): 318. http://dx.doi.org/10.3390/en15010318.

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In this paper, the flame dynamics in a thermal flow reversal reactor are studied using a multi-scale model. The challenges of the multi-scale models lie in the data exchanges between different scale models and the capture of the flame movement of the filtered combustion by the pore-scale model. Through the multi-scale method, the computational region of the porous media is divided into the inlet preheating zone, reaction zone, and outlet exhaust zone. The three models corresponding to the three zones are calculated by volume average method, pore-scale method, and volume average method respecti
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Yue, Rong, and Qiang Zhang. "A Pore-Scale Model for Quantifying Airflow Paths through Grain Bulks." Transactions of the ASABE 60, no. 3 (2017): 965–72. http://dx.doi.org/10.13031/trans.12032.

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Abstract. A commercial discrete element software package (PFC3D) was used to develop a model to simulate pore structures of grain beds. Based on the simulated structure of a grain bed, an algorithm reported in the literature was adopted and modified to determine airflow paths in the grain bed by treating the grain bed as a series of four-particle tetrahedrons. Critical characteristic parameters of the airflow path were predicted, including path length (tortuosities), width, and local turning angle (change in airflow direction at a location in the grain bed). The predicted tortuosities were in
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Dissertations / Theses on the topic "Average pore width"

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Karakas, Z. K., R. Boncukcuoglu, and I. H. Karakas. "The Effects of Fuel Type Above Adsorbtive Properties of the Nickel Ferrite Nanoparticles synthesized with Microwave Method." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35271.

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In this study, we were able to develop a new and practical method for the synthesis of the NiFe2O4 nanoparticles. The synthesis of nickel ferrite nanoparticles was used various fuel substances such as glycine, urea and citric acid. The synthesis mixture prepared in stoichiometric rates was put in to the kitchen type microwave oven. In the end of reaction time was obtained a brown-black solid. The obtained solid was characterized with X-Ray Powder Diffraction and Scanning Electron Microscopy. The results of this analysis showed that all of the obtained particles has got nano-size particle size
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Books on the topic "Average pore width"

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Pattenden, Miles. Electing the Pope in Early Modern Italy, 1450-1700. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198797449.001.0001.

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This is a book about how popes were selected in early modern Italy. But more importantly, it is a book about the problems selection by election created for the cardinals and other early modern Italians. The cardinals, who were the papacy’s exclusive electors, undertook the solemn duty of choosing a new pope on average every eight years. This was a unique procedure for choosing an absolute monarch and brought with it great responsibility. This book, the first major study of early modern papal elections in English, explores how the cardinals discharged this responsibility between the fifteenth a
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Kahn, S. Lowell. Balloon-Assisted Removal of the Trapped Catheter. Edited by S. Lowell Kahn, Bulent Arslan, and Abdulrahman Masrani. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199986071.003.0048.

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Although uncommon, a trapped central venous catheter (CVC) can present a significant problem for the interventionalist and pose considerable risk to the patient. The use of chronic long-term CVCs is on the rise, with an average catheter dwell time of 10 months. Although all CVCs are prone to complications, chronic catheters exhibit a higher rate of complications. Chronic catheters are also at risk of becoming trapped, whereby they cannot be removed by standard technique. A simple, elegant technique to remove a trapped CVC via inserting an angioplasty balloon into the lumen of a stuck catheter
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Anderson, John A., Pierre-Antoine Laloë, and Derek J. Tuffnell. Hypertension in pregnancy. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780198713333.003.0036.

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The hypertensive disorders of pregnancy encompass a spectrum of disease, including gestational hypertension, haemolysis, elevated liver enzymes, and low platelets (HELLP syndrome), and acute fatty liver of pregnancy through to pre-eclampsia and eclampsia. These conditions can pose significant problems for clinicians and are associated with significant morbidity and mortality for both mother and baby. Pre-eclampsia and eclampsia remain one of the leading causes of maternal death worldwide. The majority of fatalities occur in settings with low healthcare resources. In the developed world, improv
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Goldstein, Myrna Chandler, and Mark A. Goldstein. Controversies in Food and Nutrition. Greenwood Publishing Group, Inc., 2002. http://dx.doi.org/10.5040/9798400631771.

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You can never have too many vitamins, until they kill you. Eat meat, but avoid beef, chicken, turkey, and pork. Packaged foods are more efficiently preserved than they were 100 years ago—but should we actually eat the stuff? Consumers are besieged with conflicting messages about food and nutrition, making it difficult for the average customer to know what to believe. Is anything safe at McDonald's? Do carbohydrates cause obesity? This provocative new resource explores 15 common controversies in the field of food and nutrition. The authors explain the varying opinions and underlying issues that
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Ikuta, Jennie C. Contesting Conformity. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780190087845.001.0001.

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“Be yourself!” “Don’t just follow the crowd!” Such injunctions valorizing nonconformity pervade contemporary American culture. We praise individuals such as Martin Luther King Jr. and Steve Jobs who chart their own course in life and do something new. Yet surprisingly, recent research in social psychology has shown that in practice, Americans are averse to nonconformity. This disjunction between our public rhetoric and practice raises questions: Why is nonconformity valuable? Is it always valuable, or does it pose dangers as well as promise benefits for democratic societies? What is the relati
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Book chapters on the topic "Average pore width"

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Batallas, Mauro, and Paúl Molina. "Developing a Methodology to Reduce Fuel Consumption and Classify Driving Styles for a Fleet of Vehicles." In Lecture Notes in Networks and Systems. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-87065-1_17.

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Abstract Driving patterns have a strong impact on fuel consumption and pollutant emission rates. Optimizing these factors can lead to more efficient and environmentally friendly driving. This study aims to categorize drivers into normal, timid, and aggressive types in order to estimate the differences in instantaneous fuel consumption. The data was obtained using a data acquisition device connected to the OBD port to extract the data identifier parameters of four vehicles monitored for 15 consecutive days, which belong to a service vehicle fleet. Through the implementation of a regression tree
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Cronin, Neil, Ari Lehtiö, and Jussi Talaskivi. "Research for JYU: An AI-Driven, Fully Remote Mobile Application for Functional Exercise Testing." In Communications in Computer and Information Science. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-59091-7_18.

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AbstractAs people live longer, the incidence and severity of health problems increases, placing strain on healthcare systems. There is an urgent need for resource-wise approaches to healthcare. We present a system built using open-source tools that allows health and functional capacity data to be collected remotely. The app records performance on functional tests using the phone’s built-in camera and provides users with immediate feedback. Pose estimation is used to detect the user in the video. The x, y coordinates of key body landmarks are then used to compute further metrics such as joint a
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Sharma, Akriti, Mette H. Stensen, Erwan Delbarre, et al. "Detecting Human Embryo Cleavage Stages Using YOLO V5 Object Detection Algorithm." In Communications in Computer and Information Science. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-17030-0_7.

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AbstractAssisted reproductive technology (ART) refers to treatments of infertility which include the handling of eggs, sperm and embryos. The success of ART procedures depends on several factors, including the quality of the embryo transferred to the woman. The assessment of embryos is mostly based on the morphokinetic parameters of their development, which include the number of cells at a given time point indicating the cell stage and the duration of each cell stage. In many clinics, time-lapse imaging systems are used for continuous visual inspection of the embryo development. However, the a
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Ariaseta, Achmad, Dario Pick, Joel Andersson, and Olanrewaju Ojo. "Study of Pulsed Laser Beam Welding of Nickel-Based Superalloy G27." In Advances in Transdisciplinary Engineering. IOS Press, 2024. http://dx.doi.org/10.3233/atde240152.

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The influence of pulsed laser beam welding (LBW) parameters on the weld geometry and imperfections of a new nickel-based superalloy called G27 was studied by a statistical design of experiment, and the microstructures of the weld fusion zone (FZ) of the pulsed laser beam-welded G27 were characterized. No evidence of cracks is found in the FZ and heat-affected zone (HAZ). Other weld imperfections, such as undercut and underfill, were also hardly observed. The pulse factor significantly influenced all the responses, i.e., minimum weld width (Wm), root excess weld metal, and average pore diameter
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Lv, Bei, Luo Yao, Bo Wang, Jian Wang, and Lizhi Wang. "Natural Fractures Characteristics of the Carboniferous Volcanic Reservoir in Northwestern Margin of Junggar Basin." In Advances in Transdisciplinary Engineering. IOS Press, 2021. http://dx.doi.org/10.3233/atde210261.

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Research on the regional fracture’s development is important for reservoir fracturing. This paper takes the Carboniferous volcanic reservoir in the northwestern margin of Junggar Basin as the research object. Based on understanding the regional tectonic faults and geological characteristics, the parameter characteristics of natural fractures are analyzed using imaging logging data, and natural fractures distribution characteristics are compared with regional faults and in-situ stresses, as well as the pattern of natural fractures formation is revealed. The results indicated that: (1) The Carbo
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Whalen, Terence. "Average Racism." In Romancing The Shadow. Oxford University PressNew York, NY, 2001. http://dx.doi.org/10.1093/oso/9780195137101.003.0001.

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Abstract In recent years the political and racial meaning of Poe’s work has been the focus of intense critical debate, and undoubtedly the positions generated from this debate will have enduring consequences not only for Poe scholars but also for all those investigating the importance of race in American culture. Elsewhere I have argued that Poe’s lifelong struggle with the publishing industry constitutes a kind of deep politics that should matter more than his awkward and infrequent forays into partisan rhetoric (Edgar Allan Poe and the Masses, 27-39). Poe, that is to say, should be distingui
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Scott, Robert Falcon. "The Summit Journey to the Pole." In Journals, edited by Max Jones. Oxford University Press, 2009. http://dx.doi.org/10.1093/owc/9780199536801.003.0019.

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A Fresh Ms. Book On the Flyleaf.—Ages: Self 43, Wilson 39, Evans (P.O.) 37, Oates 32, Bowers 28. Average 36. Friday, December 22.—Camp 44, about 7100 feet. T. -1°. Bar. 22.3. This, the third stage of our journey, is opening with good promise....
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Crisp, Brian F., Patrick Cunha Silva, Santiago Olivella, and Guillermo Rosas. "Programmatic Policy or Pork Barrel." In Electoral System Incentives for Interparty and Intraparty Politics. Oxford University PressOxford, 2025. https://doi.org/10.1093/9780198956587.003.0018.

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Abstract The chapter opens with a brief review of previous efforts to capture whether elected officials are focused on “pork” or policy. It distinguishes between expert surveys and direct observations of legislators’ efforts and between national-level measures and measures that can be captured at a disaggregated district or legislator level. Using bill initiation data collected by Muñoz-Portillo (2021)—which is a direct observation at the legislator level—for periods before and after an electoral reform in Honduras, the authors find that an increase in Average Personalism (AP) is associated wi
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Wang, Yu, Lida Qin, Yipu Guo, and Peng Zhang. "Frost Resistance Durability of Basalt Fiber Reinforced Concrete Based on Mesoscopic Pore Structure Characteristics." In Proceedings of the 2022 International Conference on Smart Manufacturing and Material Processing (SMMP2022). IOS Press, 2022. http://dx.doi.org/10.3233/atde220830.

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In order to explore the frost resistance durability of basalt fiber reinforced concrete (BFRC), the freeze-thaw cycle tests of BFRC with different fiber contents were carried out from the microscopic point of view, and the macro-morphological deterioration characteristics and micro-morphological characteristics of BFRC with different freeze-thaw cycles were analyzed. By testing the hole structure parameters of BFRC with different freeze-thaw cycles, the effects of gas content, average bubble chord length, specific surface area, and bubble spacing coefficient on the frost resistance of BFRC wer
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Lu, Siwei, Xiaofang Zhao, Huazhu Liu, and Hongjie Liang. "Semiconductor Material Porosity Segmentation in Flame Retardant Materials SEM Images Using Data Augmentation and Transfer Learning." In Advances in Transdisciplinary Engineering. IOS Press, 2024. http://dx.doi.org/10.3233/atde240011.

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Non-halogenated flame retardants are becoming the trend in the development of polymer flame retardant materials due to their high flame retardant efficiency and low generation of toxic smoke gases. Non-halogenated flame retardants achieve flame retardancy by forming a dense char layer and generating non-combustible gases, with the micro-porous structure of the char residue being crucial for studying the flame retardant mechanism. This study focuses on the segmentation of pores in scanning electron microscopy (SEM) images of the combustion char layer of non-halogenated flame retardant materials
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Conference papers on the topic "Average pore width"

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Blake, Benjamin A., and Ivan Catton. "Optimization of a Parallel Plate Heat Sink Using Volume Averaging Theory." In ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems. ASMEDC, 2005. http://dx.doi.org/10.1115/ht2005-72237.

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A parallel plate heat sink is optimized using a model based on the volume average theory (VAT). VAT is briefly developed and the numerical scheme is described. The numerical simulation is carried out in FORTRAN. The resulting VAT solutions are verified by comparison to experimental results via a Nusselt number correlation. The procedure for optimization is described and, as an example, a heat sink of a size appropriate for cooling a CPU is optimized for minimum thermal resistance, maximum effectiveness, and maximum heat transfer rate per unit volume. Seven parameters are included in the simula
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Karimi Rad, Mohammad Saeed, Mojtaba Kalhor Mohammadi, and Kourosh Tahmasbi Nowtarki. "Bridging Agents Optimization Based on Predicting Induced Fracture Model for Deviated Wells – A Case Study." In IADC/SPE Asia Pacific Drilling Technology Conference. SPE, 2021. http://dx.doi.org/10.2118/201070-ms.

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Abstract Applying bridging agents to prevent seepage losses is a common practice during drilling reservoir sections which limits the invaded zone and reduces stuck pipe possibility. Unfortunately, the initial particle size distribution (PSD) design of bridging agents based on static models does not prevent actual seepage losses due to the induced fractures which have different sizes comparing to the initial reservoir pore sizes. This paper reviews an actual case study with provided solutions in an offshore field located in the Middle East which had a seepage loss circulation problem through in
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Gomaa, Ibrahim, Javier Guerrero, Zoya Heidari, and D. Nicolas Espinoza. "Experimental Measurements and Molecular Simulation of Carbon Dioxide Adsorption on Carbon Surface." In SPE Annual Technical Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/210264-ms.

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Abstract Geological storage of carbon dioxide (CO2) in depleted gas reservoirs represents a cost-effective solution to mitigate global carbon emissions. The surface chemistry of the reservoir rock, pressure, temperature, and moisture content are critical factors that determine the CO2 adsorption capacity and storage mechanisms. Shale-gas reservoirs are good candidates for this application. However, the interactions of CO2 and organic content still need further investigation. The objectives of this paper are to (i) experimentally investigate the effect of pressure and temperature on the CO2 ads
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Smith, Brian R., Peter D. Beutler, and Cristina H. Amon. "Thermal Transport Network Model for High-Porosity Materials: Application to Nanoporous Aerogels." In ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems. ASMEDC, 2005. http://dx.doi.org/10.1115/ht2005-72662.

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Nanoporous thin films have received attention in the microelectronics field for their application as next-generation low-k inner-layer dielectric (ILD) materials due dielectric constants approaching 1.4. In addition, emerging applications as thermal insulation for microsystems aim to exploit the materials’ unique thermal properties in sensor and component products. However, its thermal properties can vary greatly depending on fabrication processes and material morphology. In addition, a variety of transport phenomena are present and delineation among them is difficult. In this work, we examine
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HO, Tze Jing. "Rubber waste tyre: Effect of temperature on pyrolysis char yield and properties." In Decarbonization Technology: ICDT2024. Materials Research Forum LLC, 2025. https://doi.org/10.21741/9781644903575-15.

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Abstract. Waste tyre pyrolysis is a viable technology to convert tyres into useful products such as pyrolysis oil, fuel and gas. Most of the research focus on investigating the effect of pyrolysis operating parameters on the oil product. With the increasing applications of the solid char produced, it is found that no detailed investigation on the effect of pyrolysis temperature on the char yield and properties. Thus, this project is aimed to determine the effect of pyrolysis temperature on tyre- derived char yield and properties. A total of three char samples were produced from rubber crumb, n
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Duan, Yongwei, Guangchao Shao, Chuncheng Hao, and Yanling Wang. "Research on the Fracturing Technology of Three Steps Method for Tight Sandstone Gas: A Case Study in Songliao Basin, China." In APOGCE 2024. SPE, 2024. http://dx.doi.org/10.2118/221307-ms.

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Abstract Tight sandstone gas is the main gas source for increasing storage and production in Songliao Basin, China. Due to the deep burial depth, poor physical properties, and small pore throats of the reservoir, large-scale fracture network fracturing leads to uncontrolled fracture height, resulting in effective fracture length, limited coverage, and poor stable production capacity. A "three Steps Method" fracturing technology has been developed based on the concept that "fracture-controlled reserves are well-controlled reserves". three-stage fracture network stimulation technology controls n
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Coquil, Thomas, Neal Hutchinson, Laurent Pilon, Erik Richman, and Sarah Tolbert. "Thermal Conductivity of Cubic and Hexagonal Mesoporous Silica Thin Films." In ASME 2009 Heat Transfer Summer Conference collocated with the InterPACK09 and 3rd Energy Sustainability Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/ht2009-88256.

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This paper reports the cross-plane thermal conductivity of highly ordered cubic and hexagonal templated mesoporous amorphous silica thin films synthesized by evaporation-induced self-assembly process. Cubic and hexagonal films featured spherical and cylindrical pores and average porosity of 25% and 45%, respectively. The pore diameter ranged from 3 to 18 nm and film thickness from 80 to 540 nm while the average wall thickness varied from 3 to 12 nm. The thermal conductivity was measured at room temperature using the 3ω method. The experimental setup and the associated analysis were validated b
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Danninger, Herbert, Milad Hojati, Deniz Tokatligil, Thomas Konegger, and Christian Gierl-Mayer. "Measurement Of The Pore Diameter In Sintered Steels With Varying Porosity." In World Powder Metallurgy 2022 Congress & Exhibition. EPMA, 2022. http://dx.doi.org/10.59499/wp225368092.

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Sintered steel parts contain porosity which at the usual density levels is predominantly interconnected and open. This affects secondary treatments such as carburizing or infiltration. The volume fraction of the open pores can be determined by He pycnometry, but also the pore diameter is relevant. In the present study, the pore diameter has been determined by Hg porosimetry on a plain carbon steel and a Cr-Mo prealloyed grade. Since the pore channels in PM steels are complex-shaped, different measures for the diameter were determined, the median, average and modal diameter. It showed that alth
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Lifang Wu, Wei Qi, Yaxi Hou, and Yukun Ma. "Maximum bit average entropy based binary SIFT (MBAE_BS) for face recognition with pose variation." In 2015 IEEE 17th International Workshop on Multimedia Signal Processing (MMSP). IEEE, 2015. http://dx.doi.org/10.1109/mmsp.2015.7340844.

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Siddiqui, Khadim Moin, Zeel Maheshwari, Beer Singh, Surabhi Kanaujia, and Asheesh Kumar Tiwari. "Optimizing Performance: Ideal and Practical Switching Analysis of Totem-Pole Converters with Average Fidelity-Based Charger." In 2024 5th International Conference for Emerging Technology (INCET). IEEE, 2024. http://dx.doi.org/10.1109/incet61516.2024.10593199.

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Reports on the topic "Average pore width"

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Gantzer, Clark J., Shmuel Assouline, and Stephen H. Anderson. Synchrotron CMT-measured soil physical properties influenced by soil compaction. United States Department of Agriculture, 2006. http://dx.doi.org/10.32747/2006.7587242.bard.

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Methods to quantify soil conditions of pore connectivity, tortuosity, and pore size as altered by compaction were done. Air-dry soil cores were scanned at the GeoSoilEnviroCARS sector at the Advanced Photon Source for x-ray computed microtomography of the Argonne facility. Data was collected on the APS bending magnet Sector 13. Soil sample cores 5- by 5-mm were studied. Skeletonization algorithms in the 3DMA-Rock software of Lindquist et al. were used to extract pore structure. We have numerically investigated the spatial distribution for 6 geometrical characteristics of the pore structure of
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Morales Sarriera, Javier, Tomás Serebrisky, Gonzalo Araya, Cecilia Briceño-Garmendia, and Jordan Schwartz. Benchmarking Container Port Technical Efficiency in Latin America and the Caribbean. Inter-American Development Bank, 2013. http://dx.doi.org/10.18235/0011526.

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We developed a technical efficiency analysis of container ports in Latin America and the Caribbean using an input-oriented stochastic frontier model. We employed a 10-year panel with data on container throughput, port terminal area, berth length, and number of available cranes in 63 ports. The model has three innovations with respect to the available literature: (i) we treated ship-to-shore gantry cranes and mobile cranes separately, in order to account for the higher productivity of the former; (ii) we introduced a binary variable for ports using ships¿ cranes, treated as an additional source
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White, Kelsey, and Tyra Olstad. Night Skies Data Report: Photometric Assessment of Night Sky Quality at Canaveral National Seashore. National Park Service, 2025. https://doi.org/10.36967/2314034.

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This report characterizes night sky conditions in Canaveral National Seashore (CANA) using measurements made in the park unit and models of regional conditions based on satellite data. Calibrated night sky imagery was obtained to characterize the night sky at three sites. These ground-based observations were collected on three nights: March 13–15, 2018. Satellite data from 2023 was used to create a map of predicted night sky conditions in and around the park. The sky overhead is influenced by moderate light pollution with the average zenith brightness of 21.07 mag/arcsec2. We estimated a range
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Herrera Dappe, Matías, Tomás Serebrisky, and Ancor Suárez-Alemán. On the Historical Relationship between Port (In)Efficiency and Transport Costs in the Developing World. Inter-American Development Bank, 2021. http://dx.doi.org/10.18235/0003326.

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Do differences in port performance explain differences in maritime transport costs? How much would improvements in port performance reduce maritime transport costs in developing countries? To answer this question, we use a widely used transport cost model, but we provide a new measure of port efficiency, estimated through a non-parametric approach. Relying on data from the early 2000s, this paper shows that for a sample of 115 container ports in 39 developing countries, becoming as efficient as the country with the most efficient port sector would reduce average maritime transport costs by 5 p
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Hammouti, A., S. Larmagnat, C. Rivard, and D. Pham Van Bang. Use of CT-scan images to build geomaterial 3D pore network representation in preparation for numerical simulations of fluid flow and heat transfer, Quebec. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331502.

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Non-intrusive techniques such as medical CT-Scan or micro-CT allow the definition of 3D connected pore networks in porous materials, such as sedimentary rocks or concrete. The definition of these networks is a key step towards the evaluation of fluid flow and heat transfer in energy resource (e.g., hydrocarbon and geothermal reservoirs) and CO2 sequestration research projects. As material heterogeneities play a role at all scales (from micro- to project-scale), numerical models represent a powerful tool for bridging the gap between small-scale measurements provided by X-ray imaging techniques
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Oliynyk, Kateryna, and Matteo Ciantia. Application of a finite deformation multiplicative plasticity model with non-local hardening to the simulation of CPTu tests in a structured soil. University of Dundee, 2021. http://dx.doi.org/10.20933/100001230.

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In this paper an isotropic hardening elastoplastic constitutive model for structured soils is applied to the simulation of a standard CPTu test in a saturated soft structured clay. To allow for the extreme deformations experienced by the soil during the penetration process, the model is formulated in a fully geometric non-linear setting, based on: i) the multiplicative decomposition of the deformation gradient into an elastic and a plastic part; and, ii) on the existence of a free energy function to define the elastic behaviour of the soil. The model is equipped with two bonding-related intern
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Phisalaphong, Muenduen, and Neeracha Sanchavanakit. Development of bacterial cellulose for temporary skin substitute. Chulalongkorn University, 2006. https://doi.org/10.58837/chula.res.2006.74.

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Thin films of bacterial cellulose (BC) from nata de coco culture system were developed, characterized and investigated for the growth of human keratinocytes and fobroblasts. The average pore diameter and total surface area of the dried BC films estimated by BET were 224 [aungstrom] degree Celsius A and 12.62 m[superscript 2] /g, respectively. With the film thickness 0f 0.12 mm, the average tensile strength and break strain of the dried films were 5.21 MPa and 3.75 % while those of the wet films were 1.56 MPa and 8.00 %, respectively. The water absorption capacity of air-dried film was 5.09 g w
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8

Walshire, Liucas, Joseph Dunbar, and Maureen Corcoran. USACE relief wells for dams and levees : history and current practice. Engineer Research and Development Center (U.S.), 2025. https://doi.org/10.21079/11681/49664.

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The purpose of this study was to review relief well practices within the United States Army Corps of Engineers (USACE). A literature review was performed on the history and use of relief wells relief and the state of practice within the USACE. As part of this study, a survey about relief well use and maintenance practice was prepared and distributed to selected Districts containing a large number of relief wells to determine their standard operating procedures for using those wells and to learn the history of their use. Responses obtained from these Districts were tabulated and classified acco
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Desbarats, A. J., and J. B. Percival. Hydrogeochemistry of mine tailings from a carbonatite-hosted Nb-REE deposit, Oka, Quebec, Canada. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331256.

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Environmental impacts associated with the mining of carbonatite deposits are an emerging concern due to the demand for critical metals. This study investigates the chemistry of tailings seepage at the former Saint Lawrence Columbium mine near Oka, Québec, Canada, which produced pyrochlore concentrate and ferroniobium from a carbonatite-hosted Nb-REE deposit. Its objectives are to characterize the mineralogy of the tailings and their pore water and effluent chemistries. Geochemical mass balance modeling, constrained by aqueous speciation modeling and mineralogy, is then used to identify reactio
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Pinet, N., O. H. Ardakani, J. Cesar, D. C. Petts, C. Debuhr, and P J Sack. Exploring the link between organic matter and Carlin-type gold mineralization: new insights from Yukon deposits. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/330086.

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The link between organic matter and gold in sediment-hosted Carlin-type deposits is controversial. This study aims to tackle this potential link by documenting the occurrence of organic matter in a single borehole from a Carlin-type gold deposit in Yukon and by considering, in a preliminary way, the spatial and/or temporal relationship between organic matter and gold mineralization. The sedimentary succession hosting the Conrad deposit was relatively rich in organic matter, possibly related to Archea. Despite the high maturation of samples, the total organic carbon (TOC) content of the limesto
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