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Journal articles on the topic 'Dual contact zone'

Author: Grafiati

Published: 6 September 2023

Last updated: 31 July 2025

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1

Tran, Van Bon. "Dual finite element analysis for contact problem of elastic bodies with an enlarging contact zone." Applications of Mathematics 31, no. 5 (1986): 345–64. http://dx.doi.org/10.21136/am.1986.104213.

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2

Ślusarczyk, Łukasz, and Agnieszka Twardowska. "Method for Determining Contact Temperature of Tool Rake Face During Orthogonal Turning of Ti-6Al-4V Alloy." Materials 18, no. 13 (2025): 2980. https://doi.org/10.3390/ma18132980.

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This paper proposes a method for determining the contact temperature in the secondary shear zone. The input data include the results of the experimental tests of the orthogonal turning of a Ti-6Al-4V titanium workpiece using uncoated WC-Co tools with a flat rake face. The cutting force components were recorded using a piezoelectric dynamometer, a thermovision camera was used to record the temperature in the cutting zone, and a high-speed camera was used to record the chip-forming process. The independent variables included machining parameters, feed rate, cutting speed, and rake angle. A dual-

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3

Härke, Heinrich. "Through a Black Hole into Parallel Universes." Ancient Civilizations from Scythia to Siberia 26, no. 2 (2020): 413–24. http://dx.doi.org/10.1163/15700577-12341383.

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Abstract The Anglo-Saxon immigration of the 5th-6th centuries AD led to a dual contact situation in the British Isles: with the native inhabitants of the settlement areas in south-eastern England (internal contact zone), and with the Celtic polities outside the Anglo-Saxon areas (external contact zone). In the internal contact zone, social and ethnogenetic processes resulted in a complete acculturation of the natives by the 9th century. By contrast, the external contact zone between Anglo-Saxon and Celtic polities resulted in a cultural and linguistic split right across the British Isles up to

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Yu, Yan, Rong Ji Zhou, and Feng Xue Wang. "Numerical Simulation of the Temperature Field During DP1000 Dual-Phase Steel Resistance Spot Welding." Advanced Materials Research 391-392 (December 2011): 666–71. http://dx.doi.org/10.4028/www.scientific.net/amr.391-392.666.

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Dual phase steel resistance spot welding process is transient, rapid, invisible, complex, which makes the physical process of welding not yet be fully understood. Both the preprocessing contact stress field and thermo - electric transient process under alternative current(AC)load of the resistance spot welding of DP1000 dual - phase steel are analyzed by ANSYS12.0 finite-element analysis software. The fusion zone formation process and the contact situation of electrode and workpiece, between workpieces, lamination surface is investigated through numerical simulation. The project can help under

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Berre, Simon Le, Isabelle Ramière, Jules Fauque, and David Ryckelynck. "Condition Number and Clustering-Based Efficiency Improvement of Reduced-Order Solvers for Contact Problems Using Lagrange Multipliers." Mathematics 10, no. 9 (2022): 1495. http://dx.doi.org/10.3390/math10091495.

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This paper focuses on reduced-order modeling for contact mechanics problems treated by Lagrange multipliers. The high nonlinearity of the dual solutions lead to poor classical data compression. A hyper-reduction approach based on a reduced integration domain (RID) is considered. The dual reduced basis is the restriction to the RID of the full-order dual basis, which ensures the hyper-reduced model to respect the non-linearity constraints. However, the verification of the solvability condition, associated with the well-posedness of the solution, may induce an extension of the primal reduced bas

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6

Parks, Steve, and Nick Pollard. "Emergent Strategies for an Established Field: The Role of Worker-Writer Collectives in Composition and Rhetoric." College Composition & Communication 61, no. 3 (2010): 476–509. http://dx.doi.org/10.58680/ccc20109957.

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We argue that the Federation of Worker Writers and Community Publishers, with its dual emphasis on literacy and occupational skills, can serve as a new model for writing classrooms and writing program administrators. We further contend that the “contact zone” classroom should be replaced with community-based “federations.”

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7

Onyshkevych, V. M., and G. M. Barabash. "Frictional heating of system punch-elastic half plane when sliding along creative line." Bulletin of Taras Shevchenko National University of Kyiv. Series: Physics and Mathematics, no. 2 (2023): 140–43. http://dx.doi.org/10.17721/1812-5409.2023/2.23.

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Friction heating of system punch-elastic half plane when sliding along creative line is considered. Model of so-called “third body”, i.e., thin near-surface and intermediate layers, the physical and mechanical properties of which differ from those of the interacting bodies, and by the microgeometry of their surfaces in the contact zone, used for mathematical description of contact. The method of determination of thermal contact conductance in mathematical modelling of contact interaction with considering friction and hear generation by “third body” is presented. Using of modified conditions of

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Chang, Yoon Suk, Seong In Moon, Young Jin Kim, Jin Ho Lee, Myung Ho Song, and Young Hwan Choi. "Assessment of Steam Generator Tubes with Dual Axial Through-Wall Cracks." Solid State Phenomena 120 (February 2007): 71–76. http://dx.doi.org/10.4028/www.scientific.net/ssp.120.71.

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In this paper, conservatisms of current plugging criteria on steam generator tubes are reviewed and six new failure prediction models for dual through-wall cracks are proposed. In order to determine the optimum ones among these local or global failure prediction models, a series of plastic collapse tests and corresponding finite element analyses are carried out with respect to two adjacent axial through-wall cracks in thin plates. Then, reaction force model, plastic zone contact model and COD (Crack Opening Displacement) base model were selected as the optimum ones for integrity assessment of

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9

Tang, Kejie, Minjie Wen, Yi Tian, et al. "Numerical Simulation on Two-Dimensional Dual-Zone Axisymmetric Consolidation for Marine Soft Soil Improved by PVTD Considering Interfacial Thermal Resistance." Journal of Marine Science and Engineering 12, no. 10 (2024): 1878. http://dx.doi.org/10.3390/jmse12101878.

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Prefabricated vertical drains combined with heating is a new approach to improving the mechanical properties of soft clay foundations. Rising temperatures cause the formation of concentric and radially aligned soil regions with distinct heterogeneous characteristics. This results in incomplete contact between adjacent soil layers, with the water in the interstices impeding heat transfer and manifesting as a thermal resistance effect. Based on the theory of thermo-hydro-mechanical coupling, a two-dimensional dual-zone axisymmetric marine soft soil model improved by a prefabricated vertical ther

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10

Chen, Zuo Rong, and Shou Wen Yu. "Interaction between a Rigid Cylinder with a Piezoelectric Half-Space with Partial Adhesion." Advanced Materials Research 33-37 (March 2008): 333–38. http://dx.doi.org/10.4028/www.scientific.net/amr.33-37.333.

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An axisymmetric problem of interaction of a rigid rotating flat ended punch with a transversely isotropic linear piezoelectric half-space is considered. The contact zone consists of an inner circular adhesion region surrounded by an outer annular slip region with Coulomb friction. Beyond the contact region, the surface of the piezoelectric half-space is free from load. With the aid of the Hankel integral transform, this mixed boundary value problem is formulated as a system of dual integral equations. By solving the dual integral equations, analytical expressions for the tangential stress and

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Wang, Meng-Jiao, and Yakov Kutsovsky. "Effect of Fillers on Wet Skid Resistance of Tires. Part II: Experimental Observations on Effect of Filler-Elastomer Interactions on Water Lubrication." Rubber Chemistry and Technology 81, no. 4 (2008): 576–99. http://dx.doi.org/10.5254/1.3548221.

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Abstract It was demonstrated previously that on the worn surface of vulcanizates during wet skid tests, carbon black is covered by rubber whereas silica particles are at least partly exposed. In this report, the experimental results of the effects of carbon black and silica on wet skid resistance measured by various test methods and under different conditions are explained based on the “Three Zone Concept” of the contact area of tread compounds with the track surface during sliding or rolling. The three zones are water film squeezing, transition and traction zones. In the first two zones, wher

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Mao, Xinyu, Wei Liu, Yuanzhi Ni, and Valentin L. Popov. "Limiting shape of profile due to dual-mode fretting wear in contact with an elastomer." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 230, no. 9 (2015): 1417–23. http://dx.doi.org/10.1177/0954406215619450.

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We consider fretting wear due to superimposed normal and tangential oscillations of two contacting bodies, one of which is an elastomer with a linear rheology. Similarly to the contact of elastic bodies, at small oscillation amplitudes, the wear occurs only in a circular slip zone at the border of the contact area and the wear profile tends to a limiting form, in which no further wear occurs. It is shown that under assumption of a constant coefficient of friction at the contact interface, the limiting form of the wear profile does depend neither on the particular wear criterion nor on the rheo

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13

Cakir, Esin, Emre Ozlu, Mustafa Bakkal, and Erhan Budak. "Investigation of temperature distribution in orthogonal cutting through dual-zone contact model on the rake face." International Journal of Advanced Manufacturing Technology 96, no. 1-4 (2018): 81–89. http://dx.doi.org/10.1007/s00170-017-1479-3.

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14

Punati, Venugopala Swami, Ishan Sharma, and Pankaj Wahi. "An exact dual-integral formulation of the indentation of finite, free-standing, end-supported adhesive elastic layers." Mathematics and Mechanics of Solids 24, no. 5 (2018): 1294–319. http://dx.doi.org/10.1177/1081286518786069.

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We study indentation by a rigid cylindrical punch of finite, free-standing, adhesive elastic layers that are supported only at their ends. The adhesion is considered through an adhesive-zone model. Formulating the boundary-value problem, we obtain two coupled Fredholm integral equations of the first kind, which are solved by a collocation method. Results for non-adhesive contact are obtained when adhesion is zero, and they match well with our own finite element computations and earlier approximate analyses. Additionally, we obtain new results for deeper indentation of non-adhesive contact. In

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15

Wang, Bing, and Zhao Wu Wang. "Numerical Analysis of Quasistatic Contact between Rubber Roller and Rigid Roller." Advanced Materials Research 479-481 (February 2012): 1446–52. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.1446.

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A quasistatic and steady state contact problems of rubber roller and rigid roller is modeled by using a stress function in the form of series. The model is derived from the paper feed unit of duplicating machine. The point interpolation meshfree method (PIM) is applied to obtain the solution of the dual series equations resulting from the boundary condition. Stress and deformation for the rubber roller are obtained based on elasticity theory. Effects of rubber thickness and normal load are observed through the numerical examples. The observation show that the contact zone is changing with the

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16

Wu, Xiang-Dong, Mian Tian, Yao He, et al. "Short to Midterm Follow-Up of Periprosthetic Bone Mineral Density after Total Hip Arthroplasty with the Ribbed Anatomic Stem." BioMed Research International 2019 (June 27, 2019): 1–11. http://dx.doi.org/10.1155/2019/3085258.

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Background. Femoral bone remodeling around hip prosthesis after total hip arthroplasty (THA) is definite but unpredictable in time and place. This study aimed to investigate the implant-specific remodeling and periprosthetic bone mineral density (BMD) changes after implantation of the Ribbed anatomic cementless femoral stem. Methods. After power analysis, 41 patients who had undergone primary unilateral THA with the Ribbed anatomic cementless stem were included. BMD of the seven Gruen zones was measured by dual-energy X-ray absorptiometry, and the contact, fitness, and fixation of the femoral

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Oleksandr, Derets, Sadovoi Oleksandr, and Derets Hanna. "DUAL-ZONE VELOCITY CONTROL OF ASYNCHRONOUS ELECTRIC DRIVES UNDER ACCELERATION STABILIZATION CONDITIONS." Collection of scholarly papers of Dniprovsk State Technical University (Technical Sciences) 2, no. 43 (2023): 76–83. http://dx.doi.org/10.31319/2519-2884.43.2023.7.

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The relevance of the work is due to the further development of the theory of optimal control, the methods of which require adaptation to AC electric drives. The use of electric drives based on squirrel-cage asynchronous motors, which have relatively low moments of inertia, contributes as much as possible to solving the problem of speed optimization. Design features such as non-contact, increased overload capacity and the absence of switching restrictions on maximum current and velocity are the most promising from the point of view of working in systems with dual-zone velocity control. The purp

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18

Lee, Woo-Jae, Ohhun Kwon, Renjing Huang, Chao Lin, Raymond J. Gorte, and John M. Vohs. "Flexible atomic layer deposition system for coating porous materials." Journal of Vacuum Science & Technology A 40, no. 3 (2022): 032401. http://dx.doi.org/10.1116/6.0001679.

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Herein, we describe an atomic layer deposition (ALD) system that is optimized for the growth of thin films on high-surface-area, porous materials. The system incorporates a moveable dual-zone furnace allowing for rapid transfer of a powder substrate between heating zones whose temperatures are optimized for precursor adsorption and oxidative removal of the precursor ligands. The reactor can both be evacuated, eliminating the need for a carrier gas during precursor exposure, and rotated, to enhance contact between a powder support and the gas phase, both of which help us to minimize mass transf

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19

Hermansyah, Andri, Neil V. Rees, Jarnuzi Gunlazuardi, and Rahmat Wibowo. "Development of Microfluidic Paper-Based Analytical Devices (µPADs) for Determination of Cd2+, Pb2+, and Cu2+ Ions in Mineral Water." Jurnal Kimia Sains dan Aplikasi 26, no. 9 (2023): 353–62. http://dx.doi.org/10.14710/jksa.26.9.353-362.

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Microfluidic paper-based analytical devices (µPADs) have been successfully developed using dual detection: electrochemical and colorimetric systems. The µPADs have the potential to be used as Pb(II), Cd(II), and Cu(II) sensors to test the quality of water. The fabrication process uses hot embossing and screen-printing methods. The working electrode in the electrochemical zone was enhanced by the bismuth metal deposition process, while in the colorimetric zone, the gold nanoparticles modified with thioctic acid and dansylhydrazine (TA-Au-DNS) were used as a colorimetric sensor to detect Cu. The

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20

Uyulan, Caglar, Metin Gokasan, and Seta Bogosyan. "Dynamic Investigation of the Hunting Motion of a Railway Bogie in a Curved Track via Bifurcation Analysis." Mathematical Problems in Engineering 2017 (2017): 1–15. http://dx.doi.org/10.1155/2017/8276245.

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The main purpose of this paper is to analyze and compare the Hopf bifurcation behavior of a two-axle railway bogie and a dual wheelset in the presence of nonlinearities, which are yaw damping forces in the longitudinal suspension system and heuristic creep model of the wheel-rail contact including dead-zone clearance, while running on a curved track. Two-axle railway bogie and dual wheelset were modeled using 12-DOF and 8-DOF system with considering lateral, vertical, roll, and yaw motions. By utilizing Lyapunov’s indirect method, the critical hunting speeds related to these models are evaluat

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21

Prodana, Mariana, Claudiu-Eduard Nistor, Andrei Bogdan Stoian, Daniela Ionita, and Cristian Burnei. "Dual Nanofibrous Bioactive Coatings on TiZr Implants." Coatings 10, no. 6 (2020): 526. http://dx.doi.org/10.3390/coatings10060526.

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The objective of this research was to obtain a dual coating with antimicrobial properties on TiZr implants. The metallic surfaces were modified with two biopolymers (poly(lactic acid) and polycaprolactone), the first deposited by dip coating and the second by electrospinning, in order to create a nanofibers type of coating with antibacterial and bioactive effect. The surface characteristics of the obtained bioactive coatings were evaluated by Fourier Transformed Infrared Spectroscopy, by scanning electron microscopy and by contact angle measurements. The electrochemical characterization of the

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22

Ohyama, Yohei, Yukihide Minoda, Sho Masuda, Ryo Sugama, Yoichi Ohta, and Hiroaki Nakamura. "Contact states with femoral cortical bone and periprosthetic bone mineral density changes differ between traditional and newly introduced fully hydroxyapatite-coated stems." Bone & Joint Journal 106-B, no. 6 (2024): 548–54. http://dx.doi.org/10.1302/0301-620x.106b6.bjj-2023-1157.r2.

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AimsThe aim of this study was to compare the pattern of initial fixation and changes in periprosthetic bone mineral density (BMD) between patients who underwent total hip arthroplasty (THA) using a traditional fully hydroxyapatite (HA)-coated stem (T-HA group) and those with a newly introduced fully HA-coated stem (N-HA group).MethodsThe study included 36 patients with T-HA stems and 30 with N-HA stems. Dual-energy X-ray absorptiometry was used to measure the change in periprosthetic BMD, one and two years postoperatively. The 3D contact between the stem and femoral cortical bone was evaluated

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Mallick, Rajashree, Ramanuj Kumar, Amlana Panda, and Ashok Kumar Sahoo. "Hard Turning Performance Investigation of AISI D2 Steel under a Dual Nozzle MQL Environment." Lubricants 11, no. 1 (2023): 16. http://dx.doi.org/10.3390/lubricants11010016.

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In recent years, hard turning has emerged as a burgeoning cutting technology for producing high-quality finishing of cylindrical-shaped hardened steel for a variety of industrial applications. Hard turning under dry cutting was not accepted because of the generation of higher cutting temperatures which accelerated tool wear and produced an inferior surface finish. Nowadays, minimum quantity lubrication (MQL) is widely accepted in hard turning to reduce the problems encountered in dry cutting. This research aimed to augment the MQL performance in the hard turning process of AISI D2 steel by app

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Moula, Evangelia E., and Konstantinos D. Malafantis. "Homer’s Odyssey: from classical poetry to threshold graphic narratives for dual readership." Journal of Literary Education, no. 2 (December 6, 2019): 52. http://dx.doi.org/10.7203/jle.2.13779.

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This article’s focus is some unconventional adaptations of the Odyssey in graphic language, belonging to the threshold literary field and contextualized in different historical and cultural milieus. Since ancient Greek literature in general and Homer in particular, ceased to be considered as sacred scripts, they discarded the centuries-long formalistic and idealistic approach and served as a vehicle for criticism or as a mirror of each receiving culture’s present. The kind of relation established between each adaptation and its pre-text is defined by the inscribed meta-narratives in its body.

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Brglez, Ana, Barbara Piškur, and Nikica Ogris. "In Vitro Interactions between Eutypella parasitica and Some Frequently Isolated Fungi from the Wood of the Dead Branches of Young Sycamore Maple (Acer pseudoplatanus)." Forests 11, no. 10 (2020): 1072. http://dx.doi.org/10.3390/f11101072.

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The ten most frequently isolated fungi from the wood of the dead branches of Acer pseudoplatanus L. were tested in dual cultures to evaluate their in vitro antagonistic activity against Eutypella parasitica R.W. Davidson and R.C. Lorenz, the causative agent of a destructive disease of maples in Europe and North America. The tested fungi, treated also as challenge isolates, were Diaporthe sp., Eutypa sp., Eu. maura, E. parasitica, Fusarium avenaceum, Neocucurbitaria acerina, Neonectria sp., Peniophora incarnata, Petrakia irregularis, and Phomopsis pustulata. The antagonistic ability of each cha

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26

Coifman, Benjamin. "Freeway Detector Assessment." Transportation Research Record: Journal of the Transportation Research Board 1917, no. 1 (2005): 149–63. http://dx.doi.org/10.1177/0361198105191700117.

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Loop detectors have been the preeminent detection technology for several decades, but they require closing of the right-of-way during installation and potentially undermine the integrity of the pavement surface if they are not installed before paving. As a result, there is great interest in emerging technologies that promise traffic detection without the liabilities of loop detectors, many of which have already been deployed in large numbers. The remote traffic microwave sensor (RTMS) is among the most widely deployed noninvasive traffic detectors. This study evaluates the performance of the R

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Karakurt, Ilkay, Kadir Ozaltin, Hana Pištěková, et al. "Effect of Saccharides Coating on Antibacterial Potential and Drug Loading and Releasing Capability of Plasma Treated Polylactic Acid Films." International Journal of Molecular Sciences 23, no. 15 (2022): 8821. http://dx.doi.org/10.3390/ijms23158821.

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More than half of the hospital-associated infections worldwide are related to the adhesion of bacteria cells to biomedical devices and implants. To prevent these infections, it is crucial to modify biomaterial surfaces to develop the antibacterial property. In this study, chitosan (CS) and chondroitin sulfate (ChS) were chosen as antibacterial coating materials on polylactic acid (PLA) surfaces. Plasma-treated PLA surfaces were coated with CS either direct coating method or the carbodiimide coupling method. As a next step for the combined saccharide coating, CS grafted samples were immersed in

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McMaster, Gerald, Michael Frederick Rattray, Natalja Chestopalova, et al. "The Virtual Platform for Indigenous Art: An Indigenous-led Digital Strategy." Collections: A Journal for Museum and Archives Professionals 18, no. 1 (2022): 84–95. http://dx.doi.org/10.1177/15501906211072908.

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Over the past decade, a multitude of digital platforms engaging with Indigenous collections of ancestral belongings have been developed for the public in an effort to reconsider and reconceptualize notions of access and Indigenous ownership in virtual space. An initiative in partnership with the Onsite Gallery, the Virtual Platform for Indigenous Art (VPIA) is a newly developed resource that originates from Dr. Gerald McMaster’s Entangled Gaze Project at the Wapatah Centre for Indigenous Visual Knowledge, OCAD University in Toronto, Canada. VPIA is a strategic digital platform that brings toge

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Demina, L. I., V. S. Zakharov, and M. Yu Promyslova. "Introduction of the Stanovsky ophiolites of Faddesky block of Northeasten Taimyr according to geological data and numerical modeling results." Moscow University Bulletin. Series 4. Geology, no. 1 (December 15, 2022): 24–34. http://dx.doi.org/10.33623/0579-9406-2022-1-24-34.

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The geological position, morphology of serpentinite bodies, limitation by faults, the presence of surrounding metamorphites as enclosing strata fragments within the Stanovsky ophiolite complex, the nature of metamorphism, high deformation of rocks of both ophiolites and contact zone strata, and the mineral parageneses of secondary transformations fully correspond to the signs of Stanovsky ophiolites introduction into the deeply metamorphosed Faddeevsky block strata of Northeastern Taimyr, and not their obduction. The modeling results showed that fragments of the oceanic crust introduced into t

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Pimentel, Mirian F., Leonardo F. Rocha, Arjun Subedi, Jason P. Bond, and Ahmad M. Fakhoury. "Dual RNA-seq reveals transcriptome changes during Fusarium virguliforme-Trichoderma afroharzianum interactions." PLOS ONE 20, no. 1 (2025): e0310850. https://doi.org/10.1371/journal.pone.0310850.

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Trichoderma spp. are among the most studied biocontrol agents. While extensive work has been done to understand Trichoderma antagonistic mechanisms, additional research is needed to fully understand how Trichoderma spp. recognize the pathogen-host and the intra-species variability i frequently observed upon interaction with a specific pathogen-host. This study focuses on elucidating the mechanisms underlying observed phenotypic differences among the T. afroharzianum isolates Th19A and Th4 during confrontation with Fusarium virguliforme by investigating differences in their transcriptome at dif

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Varghese, B., and K. V. Kumar. "High removal rate grinding of transmission components using CBN wheels." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 221, no. 8 (2007): 1353–57. http://dx.doi.org/10.1243/09544054jem785.

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Higher productivity and improved part quality requirements are increasingly being demanded of material removal processes. While these demands impose significant challenges, in some cases they also present opportunities to consider grinding as a viable alternative to processes such as turning, milling, and broaching. This has been made possible through advances in various aspects of grinding technology including abrasives, wheel design, coolant, and its application as well as machine tool technology. The current paper discusses grinding of a nodular cast iron transmission yoke component on a du

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Gao, Shuai, Wei Zeng, Zheng Liu, et al. "Dual-Function Hydrogel Coating on Silicone Urinary Catheters with Durable Antibacterial Property and Lubricity." Gels 11, no. 2 (2025): 128. https://doi.org/10.3390/gels11020128.

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Silicone urinary catheters are broadly employed in medical practice. However, they are susceptible to inducing catheter-associated urinary tract infections (CAUTIs) due to bacterial adherence to the catheter’s surface, and they exhibit a high friction coefficient, which can greatly affect their effectiveness and functionality. Thus, the development of a silicone urinary catheter with antibacterial properties and lubricity is in strong demand. We hereby developed a poly(vinyl acetate) carrier coating to load chlorhexidine acetate and applied a hydrogel coating primarily composed of polyvinylpyr

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Khoroshun, R., B. Umarova, R. Rogatynskyi, V. Sakhno, O. Lyashuk, and N. Sembayev. "Evaluation of vehicle stability parameters during wheel-obstacle impact scenarios." Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, no. 3 (June 25, 2025): 119–30. https://doi.org/10.33271/nvngu/2025-3/119.

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Purpose. The study aims to establish the patterns of influence exerted by dynamic loads – arising from wheel-obstacle interactions – on a vehicle’s directional stability and handling performance. Methodology. To investigate the redistribution of vehicle weight over the wheels during obstacle impact, and to assess the effects of wheel – obstacle collisions at high speeds, a simulation-based approach was employed. This method is grounded in solving the Hertz contact problem. The dynamics of a low-speed vehicle encountering an obstacle were analyzed through the solution of the differential equati

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Whitmore, Stephen A., Cara I. Borealis, and Max W. Francom. "Minimally-intrusive, dual-band, fiber-optic sensing system for high-enthalpy exhaust plumes." Electronic Research Archive 32, no. 4 (2024): 2541–97. http://dx.doi.org/10.3934/era.2024117.

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<abstract> <p>The propulsion research lab at Utah State University has developed a minimally-intrusive optical sensing system for high-temperature/high-velocity gas-generator exhaust plumes. For this application glass fiber-optic cables, acting as radiation conduits, are inserted through the combustion chamber or nozzle wall and look directly into the flow core. The cable transmits data from the flame zone to externally-mounted spectrometers. In order to capture the full-optical spectrum, a blended dual-spectrum system was employed, with one spectrometer system tuned for best-respo

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Lim, Jia Jia, Claerwen M. Jones, Tiing Jen Loh, et al. "The shared susceptibility epitope of HLA-DR4 binds citrullinated self-antigens and the TCR." Science Immunology 6, no. 58 (2021): eabe0896. http://dx.doi.org/10.1126/sciimmunol.abe0896.

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Individuals expressing HLA-DR4 bearing the shared susceptibility epitope (SE) have an increased risk of developing rheumatoid arthritis (RA). Posttranslational modification of self-proteins via citrullination leads to the formation of neoantigens that can be presented by HLA-DR4 SE allomorphs. However, in T cell–mediated autoimmunity, the interplay between the HLA molecule, posttranslationally modified epitope(s), and the responding T cell repertoire remains unclear. In HLA-DR4 transgenic mice, we show that immunization with a Fibβ-74cit69-81 peptide led to a population of HLA-DR4Fibβ-74cit69-

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Kowalski, Tadeusz, and Piotr Bilański. "Fungicolous Fungi on Pseudosclerotial Plates and Apothecia of Hymenoscyphus fraxineus and Their Biocontrol Potential." Microorganisms 10, no. 11 (2022): 2250. http://dx.doi.org/10.3390/microorganisms10112250.

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In the present work, research tasks were carried out in the search for fungi with potential biocontrol possibilities in relation to the ash dieback pathogen, Hymenoscyphus fraxineus. In the years 2012–2021, dead petioles of F. excelsior and F. mandshurica were collected, on which morphological structures of H. fraxineus showed unusual symptoms of dying (apothecia) and signs of colonization by other fungi (pseudosclerotial plates). Based on morphological and molecular phylogenetic data, 18 fungal taxa were identified. Thirteen of them belong to Ascomycota: Clonostachys rosea, Cl. solani, Cordyc

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Kowalski, Tadeusz, and Piotr Bilański. "Fungi Detected in the Previous Year’s Leaf Petioles of Fraxinus excelsior and Their Antagonistic Potential against Hymenoscyphus fraxineus." Forests 12, no. 10 (2021): 1412. http://dx.doi.org/10.3390/f12101412.

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Studies on fungal communities in the previous year’s leaf petioles of Fraxinus excelsior found in litter in five ash stands in southern Poland were made in 2017. Fungi were identified on the basis of isolation from 300 surface sterilized leaf petioles and by in situ inventory of fruit bodies (on 600 petioles, in spring and autumn). Identification was based on morphology of colonies and fruit bodies, and sequencing of ITS region of the rRNA gene cluster. In total, 2832 isolates from 117 taxa (Ascomycota—100; Basidiomycota—15; Mucoromycota—2 taxa) were obtained with the isolation method. The mos

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Stephan, Matthias, S. Bak, Sirkka Stephan, Jianzhu Chen, and Darrell Irvine. "Synapse-directed delivery of immune-stimulants using T-cell-conjugated nanoparticles (162.30)." Journal of Immunology 188, no. 1_Supplement (2012): 162.30. http://dx.doi.org/10.4049/jimmunol.188.supp.162.30.

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Abstract Regulating molecular interactions in the T cell synapse to prevent autoimmunity or, conversely, to boost anti-tumor immunity has long been a goal in immunotherapy. However, delivering therapeutically meaningful doses of immune-modulating compounds into the synapse represents a major challenge. Here, we report that covalent coupling of maleimide-functionlized nanoparticles (NPs) to free thiol groups on T cell membrane proteins enables efficient delivery of compounds into the T cell synapse. We demonstrate that surface-linked NPs are rapidly polarized toward the nascent immunological sy

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Kauffmann, Philipp, Susanne Wolfer, Christina Behrens, et al. "Effect of Sequential vs. Simultaneous Dual Growth Factor Release from Structured Heparin-Poly-Electrolyte Multilayer Coatings on Peri-Implant Bone Formation and Angiogenesis in Pig Mandibles." Journal of Functional Biomaterials 16, no. 2 (2025): 67. https://doi.org/10.3390/jfb16020067.

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The aim of the present study was to test the sequential and simultaneous release of rhBMP2 and rhVEGF165 from poly-l-lysine-heparin (PLL-Hep) poly-electrolyte multilayer (PEM) coating on titanium surfaces for their ability to enhance peri-implant bone formation and CD31 expression around disc-shaped titanium implants (5 × 7 mm) in mini-pig mandibles. Bare titanium surfaces loaded with respective growth factor combinations served as controls. Ten different surface conditions were tested exhibiting early VEGF release, early BMP release, simultaneous VEGF and BMP release, and sole VEGF/BMP releas

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Mishchenko, V., S. Byelikov, O. Klimov, et al. "CREATION OF SPECIAL CONSTRUCTION MATERIAL USING THE ROLLING METHOD OF ASYMMETRICAL PACKAGES FOR DUAL-PURPOSE PRODUCTS." New Materials and Technologies in Metallurgy and Mechanical Engineering, no. 2 (June 20, 2023): 32–37. http://dx.doi.org/10.15588/1607-6885-2023-2-5.

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Purpose. The object of research in this work was the creation of a bimetallic material with increased mechanical and operational properties by rolling asymmetric packages. According to the preliminary results of the structure and properties research, the optimal compositions of the base and cladding layer of the bimetallic workpiece with the smallest difference in thermal expansion coefficients were selected. With the help of asymmetric rolling of base packages – steel 14Х17Н13КМБх + cladding layer-steel 03Х17Н3Г9МБДЮч, a bimetallic workpiece was made, which had low stresses in the welded seam

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Medeiros, Flavio, Erdal Ozkan, and Hossein Kazemi. "Productivity and Drainage Area of Fractured Horizontal Wells in Tight Gas Reservoirs." SPE Reservoir Evaluation & Engineering 11, no. 05 (2008): 902–11. http://dx.doi.org/10.2118/108110-pa.

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Summary This paper discusses the performance and productivity of fractured horizontal wells in heterogeneous, tight-gas formations. Production characteristics and flow regimes of unfractured and fractured horizontal wells are documented. The results show that if hydraulic fracturing affects stress distribution to create or rejuvenate natural fractures around the well, the productivity of the system is significantly increased. Unless there is significant contrast between the conductivities of the hydraulic and natural fractures, hydraulic fractures may not significantly contribute to the produc

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Wen, Zilan, Zhen Zeng, Fei Ren, and Fred O. Asiegbu. "The Conifer Root and Stem Rot Pathogen (Heterobasidion parviporum): Effectome Analysis and Roles in Interspecific Fungal Interactions." Microorganisms 7, no. 12 (2019): 658. http://dx.doi.org/10.3390/microorganisms7120658.

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Heterobasidion parviporum Niemelä & Korhonen is an economically important basidiomycete, causing root and stem rot disease of Norway spruce (Picea abies (L.) Karst) in Northern Europe. The H. parviporum genome encodes numerous small secreted proteins, which might be of importance for interacting with mycorrhiza symbionts, endophytes, and other saprotrophs. We hypothesized that small secreted proteins from H. parviporum (HpSSPs) are involved in interspecific fungal interaction. To identify HpSSP-coding genes potentially involved, we screened the H. parviporum effectome and compared their tr

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Begum, Salma, R. K. Tombisana Devi, and N. Iboton Singh. "Evaluation of fungicides, biocontrol agents and botanicals for management of damping-off in cabbage seedlings caused by Fursarium moniliforme sheld." Journal of Applied and Natural Science 7, no. 1 (2015): 106–10. http://dx.doi.org/10.31018/jans.v7i1.572.

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The antagonistic effect of 10 fungicides, four biocontrol agents and 10 locally available botanicals in controlling the growth and sporulation of Fusarium moniliforme in vitro were tested. A pot culture experiment was also conducted to study the effect of seed treatment and soil treatment alone or in combination on germination and seedling vigour of cabbage. In vitro evaluation of ten fungicides by poisoned food technique showed that all the fungicides efficiently inhibited complete inhibition of the linear growth of the fungus was observed with Thiophenate methyl, Carbendazim, Mancozeb, Difen

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Jawed, Rehan, Abdulaziz Bazaid, Alexey Malyazin, and Ehsan Murad. "Application of Advanced Sectorial Electromagnetic Scanning Addressing Well Integrity Challenges." Petrophysics – The SPWLA Journal of Formation Evaluation and Reservoir Description 66, no. 4 (2025): 578–93. https://doi.org/10.30632/pjv66n4-2025a4.

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This paper explores the application of the sectorial electromagnetic scanning tool in diagnosing well integrity issues, such as metal loss and deformation in gas wells. The tool enhances the detection of defects in the well’s first barrier (the innermost pipe that the scanning tool directly evaluates), providing azimuthal resolution and localized measurements of wall thickness. Existing conventional electromagnetic corrosion logging methods associated with averaged circumferential measurements may overlook localized anomalies, potentially leading to underestimated integrity risks. The study in

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Kim, Jaeyoung. "Effect of Dual-focus Contact Lenses on Myopic Progression." Annals of Optometry and Contact Lens 22, no. 1 (2023): 1–6. http://dx.doi.org/10.52725/aocl.2023.22.1.1.

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The prevalence of myopia is increasing, and is particularly high in Asia, including Korea. The myopia is associated with serious ocular complications such as cataract, glaucoma, and retinal detachment. There have been several studies to control progression of myopia using optical or medical treatment. Among them, MiSight<sup>®</sup> has been clinically proven and approved by the US Food and Drug Administration (FDA) to control the progression of myopia in children. MiSight<sup>®</sup> is a dual-focus contact lens containing a large central correction zones to correct re

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Kuznetsov, M., and G. Kryachko. "INFLUENCE OF BLOWING PARAMETERS AND SLAG REGIME ON SILICON AND SULFUR CONTENT IN BLAST-FURNACE CAST IRON." Collection of scholarly papers of Dniprovsk State Technical University (Technical Sciences) 1, no. 38 (2021): 7–14. http://dx.doi.org/10.31319/2519-2884.38.2021.1.

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At two blast furnaces (BF) with a volume of 1386 and 1500 m³, the influence of the parameters of blast and slag modes on the content of silicon and sulfur in cast iron was investigated. The blast mode was evaluated by the consumption of pulverized coal fuel (PCF) and oxygen, the slag mode was evaluated by its basicity CaO / SiO₂. It was found that the injection of pulverized coal into the hearth of 1500 m³ BF in the range of flow rates from 108 to 120 g/m³·s, and in the hearth of 1386 m³ BF in the range from 90 to 110 g/m³·s was accompanied by a decrease in the silicon content in cast iron. Th

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TAO Yuan-Xiao, FU Hang, HU Shu-Xin, LI Ming, and LU Ying. "Localized Illumination-Enhanced Coupling of Single-Molecule Fluorescence and Single-Channel Patch-Clamp in Live Cells." Acta Physica Sinica 74, no. 13 (2025): 0. https://doi.org/10.7498/aps.74.20250471.

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Channel proteins act as precise molecular regulators of transmembrane transport, a fundamental process essential for maintaining cellular homeostasis. These proteins dynamically modulate their functional states through conformational changes, forming the structural basis for complex physiological processes such as signal transduction and energy metabolism. Single-molecule fluorescence spectroscopy and single-channel patch-clamp electrophysiology represent two cornerstone techniques in modern biophysics: the former enables molecular-resolution analysis of structural dynamics, while the latter p

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Belogolovskii, M. A., S. Y. Larkin, A. I. Khachaturov, and T. A. Khachaturova. "Devices with dual-zone tunnel insulator based on nanoscale superconducting contacts and ferromagnetic layers." Electronics and Communications 18, no. 1 (2013): 9–13. http://dx.doi.org/10.20535/2312-1807.2013.18.1.186879.

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Zenfira Huseynli, Rasul Dadashov, Zenfira Huseynli, Rasul Dadashov. "INCREASING THE TENSILE STRENGTH OF A HYDRAULIC SEAL OF A PACKER WITH A HYDRAULIC CYLINDER." ETM - Equipment, Technologies, Materials 28, no. 04 (2025): 44–50. https://doi.org/10.36962/etm28042025-44.

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The article discusses the operation of a dual-bore packer and presents the calculation of contact pressure on the packer's sealing elements. A packer (translated from English as “packer” — a sealing device, from the word to pack — to seal or to compress) is a downhole tool run into an oil, gas, or water well to provide zonal isolation and seal off specific sections of the wellbore. Packers come in various designs and operate on different principles. The packer is a key component of downhole oilfield equipment used in both flowing and artificial lift wells. During the operation or servicing of

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Siemek, Jakub, and Jerzy Stopa. "A Simplified Semi-Analytical Model for Water-Coning Control in Oil Wells With Dual Completions System." Journal of Energy Resources Technology 124, no. 4 (2002): 246–52. http://dx.doi.org/10.1115/1.1506699.

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In this paper, a mathematical model and numerical investigations on dynamic water/oil contact (WOC) in a reservoir with active bottom waters are addressed. An original analytical solution describing the theoretical shape of the dynamic oil-water contact in the reservoir is presented and compared with some results of numerical simulations made by a commercial flow-simulator. It is shown that both water and oil may be produced simultaneously but selectively from their respective zones. This allows a theoretical control of the dynamic WOC by the water flow rate. Consequently, an increased amount

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