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Journal articles on the topic 'Mal du simulateur'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

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1

Bhatti, J. S., N. W. Foster, T. Oja, M. H. Moayeri, and P. A. Arp. "Modeling potentially sustainable biomass productivity in jack pine forest stands." Canadian Journal of Soil Science 78, no. 1 (1998): 105–13. http://dx.doi.org/10.4141/s97-041.

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A steady-state mass balance model (ForSust), developed to simulate potentially sustainable levels of tree biomass growth and related nutrient uptake dynamics, was applied to 17 jack pine sites across Canada. The model simulates potential tree biomass growth based on nutrient inputs from estimated atmospheric deposition (N, Ca, Mg, K) and soil weathering (Ca, Mg, K), and matches the resulting nutrient supply rates with calculated nutrient demand. Nutrient demand calculations are based on nutrient concentrations in wood, bark, branches, and foliage. Specifically, the model simulates sustainable

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Li, Li, Xiaoke Jin, Chenhe Lu, Zongbo Wei, and Jin Li. "Modelling and Simulation on Acoustic Channel of Underwater Sensor Networks." Wireless Communications and Mobile Computing 2021 (November 29, 2021): 1–12. http://dx.doi.org/10.1155/2021/8263600.

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The reliability of the modelling system mainly depends on the simulation of underwater acoustic channel characteristics. The reliability of simulator is improved because of the use of Bellhop in NS-Miracle. World Ocean Simulation System (WOSS) can retrieve the data of marine environment by accessing the database of seabed depth, sound speed profile and seabed sediment, and transmit them to Bellhop simulator automatically, so that the model is closer to the actual underwater acoustic transmission channel than not using WOSS. In order to verify the reliability of NS2/NS-Miracle simulation system

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Guo, Qiao Na, and Zhi Fang Zhou. "Hydrodynamics in the Luanhe River Alluvial Fan of the Piedmont Plain Zone, China." Advanced Materials Research 1065-1069 (December 2014): 2948–51. http://dx.doi.org/10.4028/www.scientific.net/amr.1065-1069.2948.

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This paper investigated the interaction of groundwater and river in an alluvial fan of the piedmont plain zone, China. Field observations of groundwater level were performed. The three-dimensional finite element model using the simulator Feflow was used to simulate the observed groundwater level. The model was auto-calibrated against observations of groundwater head from wells distributed across the region. Good correspondence between simulated and measured water level was found for the monitored wells. The relatively small magnitudes of RMSE and MAE indicate that the predictions of the numeri

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Zhong, Minxuan, Jinxia Xu, Yiyang Jiang, and You Wu. "Corrosion Protection of Steel by NO3− and NO2− Intercalated Mg-Al Layered Double Hydroxides in Simulated Pore Solutions of Alkali-Activated Slag." Metals 14, no. 1 (2024): 111. http://dx.doi.org/10.3390/met14010111.

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This paper aims to perform a comparative investigation on the corrosion protection of steel in the simulated pore solutions of alkali-activated slag (SH) by NO3− and NO2− intercalated Mg-Al layered double hydroxides (MAL) which were fabricated by the calcination rehydration method. The corrosion potential, electrochemical impedance spectroscopy, potentiodynamic polarization and corrosion condition of steel were measured. Furthermore, changes in the microstructures of NO3− intercalated MAL (MAL-N3) and NO2− intercalated MAL (MAL-N2) before and after the adsorption of chloride ion were observed

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Ichise, Masanori, Hiroshi Toyama, Robert B. Innis, and Richard E. Carson. "Strategies to Improve Neuroreceptor Parameter Estimation by Linear Regression Analysis." Journal of Cerebral Blood Flow & Metabolism 22, no. 10 (2002): 1271–81. http://dx.doi.org/10.1097/01.wcb.0000038000.34930.4e.

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In an attempt to improve neuroreceptor distribution volume ( V) estimates, the authors evaluated three alternative linear methods to Logan graphical analysis (GA): GA using total least squares (TLS), and two multilinear analyses, MA1 and MA2, based on mathematical rearrangement of GA equation and two-tissue compartments, respectively, using simulated and actual PET data of two receptor tracers, [18F]FCWAY and [11C]MDL 100,907. For simulations, all three methods decreased the noise-induced GA bias (up to 30%) at the expense of increased variability. The bias reduction was most pronounced for MA

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Trinugroho, Muchamad Wahyu. "Evaluasi Pengaruh Jumlah dan Posisi Stasiun Curah Hujan pada Simulasi Aliran Limpasan Di Sungai Ping, Thailand." JURNAL SUMBER DAYA AIR 14, no. 1 (2018): 31–46. http://dx.doi.org/10.32679/jsda.v14i1.192.

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The number and distribution of rainfall stations areneeded to simulate rainfall-run off transformation on hydrologic model. However, the availability of stations varies in watershed. The study aims to assess theinfluence of numberand distribution rainfall stations by a modelling approachto simulate run-off process. The use of HEC-HMS model is tocalibrate model parameters and simulaterun-offon 4 scenarios in Mae Caem Watershed (3,826 km2), Northern Thailand. The result shows the calibrated model parameters of 13 stationsare very satisfied by 0.826 of Nash coefficient. Based on the simulation re

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Chambers, Spencer B., Clare E. Padmore, Stacy Fan, Ruby Grewal, James Johnson, and Nina Suh. "The Impact of Scaphoid Malunion on Carpal Motion: An In-Vitro Analysis." Journal of Hand Surgery (Asian-Pacific Volume) 26, no. 03 (2021): 396–402. http://dx.doi.org/10.1142/s2424835521500387.

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Background: The clinical significance of scaphoid malunion is debated and its effect on wrist kinematics is poorly understood. Alterations to scaphoid morphology in other pathologies result in significant sequelae and arthrosis. By understanding the impact of scaphoid malunion on carpal kinematics, better insight can be garnered to inform models of wrist motion and clinical treatment of this injury. Methods: Seven cadaveric upper extremities underwent active wrist flexion and extension in a custom motion wrist simulator with scaphoid kinematics being captured with respect to the distal radius.

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Prasant, Kumar Dash, and Panda Madhumita. "SMLMAC-HEAP: Slotted Multi-Layer MAC Protocol for Wireless Sensor Networks Powered by Ambient Energy Harvesting." Indian Journal of Science and Technology 15, no. 36 (2022): 1827–35. https://doi.org/10.17485/IJST/v15i36.420.

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Abstract <strong>Objectives:</strong> To study the lifetime of Wireless Sensor Network (WSN) as well as to propose and simulate a suitable approach so that the Quality-of-Service (QoS) of the network in terms of throughput improved when compared with the previous methods. <strong>Methods:</strong> The lifetime of WSN depends on the MAC layer because energy consumption is more due to the sharing access of media. Our approach is designed not only to adopt the division of the MAC layer into a number of slots by keeping both listen and sleep mode but also using the solar harvested e

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International, Journal on AdHoc Networking Systems (IJANS). "Comparison of Csma Based MAC Protocols of Wireless Sensor Networks." International Journal on AdHoc Networking Systems (IJANS) 2, no. 2 (2023): 10. https://doi.org/10.5121/ijans.2012.2202.

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Energy conservation has been an important area of interest in Wireless Sensor networks (WSNs). Medium Access Control (MAC) protocols play an important role in energy conservation. In this paper, we describe CSMA based MAC protocols for WSN and analyze the simulation results of these protocols. We implemented S-MAC, T-MAC, B-MAC, B-MAC+, X-MAC, DMAC and Wise-MAC in TOSSIM, a simulator which unlike other simulators simulates the same code running on real hardware. Previous surveys mainly focused on the classification of MAC protocols according to the techniques being used or problem dealt with a

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Chen, Yaohua, and Waixi Liu. "MAC Layer Energy Consumption and Routing Protocol Optimization Algorithm for Mobile Ad Hoc Networks." Complexity 2021 (February 9, 2021): 1–12. http://dx.doi.org/10.1155/2021/6687189.

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Mobile ad hoc network is a network composed of mobile terminals without infrastructure. Due to its fast-networking ability, it is widely used in smart cities, car networking, military, agriculture, medicine, and other fields. Routing technology is a key technology in the field of MANET (mobile ad hoc network). The energy consumption is optimized through the technical network simulator NS-3, and the nodes in the MANET routing protocol can accurately simulate the problem, thereby optimizing the MAC layer of important research tools. This article combines the advantages of the lithium-ion (lithiu

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Biller, Beth A., Dániel Apai, Mickaël Bonnefoy, et al. "A high-contrast search for variability in HR 8799bc with VLT-SPHERE." Monthly Notices of the Royal Astronomical Society 503, no. 1 (2021): 743–67. http://dx.doi.org/10.1093/mnras/stab202.

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ABSTRACT The planets HR8799bc display nearly identical colours and spectra as variable young exoplanet analogs such as VHS 1256-1257ABb and PSO J318.5-22, and are likely to be similarly variable. Here we present results from a 5-epoch SPHERE IRDIS broadband-H search for variability in these two planets. HR 8799b aperture photometry and HR 8799bc negative simulated planet photometry share similar trends within uncertainties. Satellite spot lightcurves share the same trends as the planet lightcurves in the August 2018 epochs, but diverge in the October 2017 epochs. We consider Δ(mag)b − Δ(mag)c

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Chang, Chia-Hao, Hsiang-Ning Wu, Ching-Han Hsu, and Hsin-Hon Lin. "Virtual monochromatic imaging with projection-based material decomposition algorithm for metal artifacts reduction in photon-counting detector computed tomography." PLOS ONE 18, no. 3 (2023): e0282900. http://dx.doi.org/10.1371/journal.pone.0282900.

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Metal artifacts present a major challenge to computed tomography (CT) because they reduce the image quality in medical diagnosis and treatment. Several metal artifact reduction (MAR) methods have been proposed to address this issue in previous studies. This study aimed to synthesize a virtual monochromatic image for MAR in CT images using projection-based material decomposition (MD) algorithms. We developed a spectral micro-CT prototype system equipped with a photon-counting detector (PCD) and PCD-CT imaging simulator to assess the performances of different MAR methods. Two projection-based MD

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Liu, Tong Qing, Guang Jie Han, Chuan Zhu, and Chen Yu Zhang. "Application Research on Aqua-Sim for Underwater Acoustic Sensor Networks." Advanced Materials Research 605-607 (December 2012): 1046–49. http://dx.doi.org/10.4028/www.scientific.net/amr.605-607.1046.

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In this paper, we present a simulator based on NS2 for Underwater Acoustic Sensor Networks (UASNs), named Aqua-Sim, which simulates the attenuation of underwater acoustic channels and the collision behaviors effectively. In addition, Aqua-Sim supports 3D network deployment and provides some MAC and routing protocols. Through communication between two nodes and localization of unknown nodes, the application examples of Aqua-Sim are shown. We also present the graphical user interface of Aqua-3D using an example application.

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Duca, John V., John Muellbauer, and Anthony Murphy. "How Mortgage Finance Reform Could Affect Housing." American Economic Review 106, no. 5 (2016): 620–24. http://dx.doi.org/10.1257/aer.p20161083.

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Although major changes in mortgage finance have occurred since the subprime bust, several issues remain unresolved, centering on the roles of Fannie Mae, Freddie Mac, and the FHA. We analyze how some reforms might affect house prices in a framework rich enough to simulate the impact of several reforms which change mortgage interest rates and/or loan-to-value (LTV) ratios of first time home buyers, the key drivers of house prices in recent decades. Simulations suggest that ending the GSE interest rate subsidy would have small effects, while changes in capital requirements or maximum FHA loan si

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Sorensen, Mads Solvsten, Jesper Mosegaard, and Peter Trier. "The Visible Ear Simulator." Otology & Neurotology 30, no. 4 (2009): 484–87. http://dx.doi.org/10.1097/mao.0b013e3181a5299b.

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Raimann, Florian Jürgen, Philipp Edmund Dietze, Colleen Elizabeth Cuca, et al. "Prospective Trial to Compare Direct and Indirect Laryngoscopy Using C-MAC PM® with Macintosh Blade and D-Blade® in a Simulated Difficult Airway." Emergency Medicine International 2019 (April 1, 2019): 1–8. http://dx.doi.org/10.1155/2019/1067473.

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Objective. Evaluation of C-MAC PM® in combination with a standard Macintosh blade size 3 in direct and indirect laryngoscopy and D-Blade® in indirect laryngoscopy in a simulated difficult airway. Primary outcome was defined as the best view of the glottic structures. Secondary endpoints were subjective evaluation and assessment of the intubation process. Methods. Prospective monocentric, observational study on 48 adult patients without predictors for difficult laryngoscopy/tracheal intubation undergoing orthopedic surgery. Every participant preoperatively received a cervical collar to simulate

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Zhao, Chen, and Shi Bin Gao. "The Setting Calculation of the Current Increment Protection of the Traction Power Supply System for High-Speed Railways." Applied Mechanics and Materials 681 (October 2014): 177–80. http://dx.doi.org/10.4028/www.scientific.net/amm.681.177.

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In order to study deeply the cause of mal-operation of the current increment protection and then redo the setting calculation, the all-parallel AT traction network model and the simulation model of Electric Multiple Units (EMU) are established. Using the model that has been established and Simulink simulation tool, the situation while the EMU is being started, passing neutral section or the traction network has grounding fault with interruption was simulated. The simulation result show that the current increment when the EMU starting is significantly different from that situation when fault oc

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Nath, Shantanu K., Sayera Aznabi, Nabila T. Islam, Annan Faridi, and Wayesh Qarony. "Investigation and Performance Analysis of Some Implemented Features of the ZigBee Protocol and IEEE 802.15.4 Mac Specification." International Journal of Online Engineering (iJOE) 13, no. 01 (2017): 14. http://dx.doi.org/10.3991/ijoe.v13i01.5984.

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The manuscript represents wireless sensor networks using numerous topologies of ZigBee. Along with coordinator load, the uses of coordination with such networks were inspected. The investigation has been accomplished via the use of various plots in the OPNET Modeler simulator. The results of the simulation explore the use of coordination with mesh and tree routing to verify the suitability of the topology. It also demonstrates some of the implemented features of the ZigBee protocol and IEEE 802.15.4 MAC specification, using OPNET's ZigBee model suite, like: Mesh routing vs. tree routing, Roami

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Siedersleben, Simon K., Andreas Platis, Julie K. Lundquist, et al. "Turbulent kinetic energy over large offshore wind farms observed and simulated by the mesoscale model WRF (3.8.1)." Geoscientific Model Development 13, no. 1 (2020): 249–68. http://dx.doi.org/10.5194/gmd-13-249-2020.

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Abstract. Wind farms affect local weather and microclimates; hence, parameterizations of their effects have been developed for numerical weather prediction models. While most wind farm parameterizations (WFPs) include drag effects of wind farms, models differ on whether or not an additional turbulent kinetic energy (TKE) source should be included in these parameterizations to simulate the impact of wind farms on the boundary layer. Therefore, we use aircraft measurements above large offshore wind farms in stable conditions to evaluate WFP choices. Of the three case studies we examine, we find

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Angri, Ismail, Abdellah Najid, and Mohammed Mahfoudi. "MAC Optimization Based on the Radio Resource Allocation in a 5G eMBB System Simulated in the MmWave Model." International Journal of Wireless Networks and Broadband Technologies 10, no. 2 (2021): 32–54. http://dx.doi.org/10.4018/ijwnbt.2021070103.

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5G NR (new radio) systems support multiple use cases, namely enhanced mobile broadband (eMBB), ultra-reliable and low latency communications (URLLC), and massive machine-type communications (mMTC), to meet the needs of different types of applications. The multi users-downlink packet scheduling (MU-DLPS) is used for the 5G NR radio resource management (RRM). In this paper, the authors show that the radio resource scheduling algorithms, which have been applied to 4G, are also efficient and can be used in 5G networks. In this objective, the authors simulated scheduling schemes in a 5G eMBB enviro

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Wulf, Hans Christian, Rami Nabil Al-Chaer, Martin Glud, Peter Alshede Philipsen, and Catharina Margrethe Lerche. "A Skin Cancer Prophylaxis Study in Hairless Mice Using Methylene Blue, Riboflavin, and Methyl Aminolevulinate as Photosensitizing Agents in Photodynamic Therapy." Pharmaceuticals 14, no. 5 (2021): 433. http://dx.doi.org/10.3390/ph14050433.

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The high incidence of sunlight-induced human skin cancers reveals a need for more effective photosensitizing agents. In this study, we compared the efficacy of prophylactic photodynamic therapy (PDT) when methylene blue (MB), riboflavin (RF), or methyl aminolevulinate (MAL) were used as photosensitizers. All mice in four groups of female C3.Cg/TifBomTac hairless immunocompetent mice (N = 100) were irradiated with three standard erythema doses of solar-simulated ultraviolet radiation (UVR) thrice weekly. Three groups received 2 × 2 prophylactic PDT treatments (days 45 + 52 and 90 + 97). The PDT

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Patel, Shiv H., Wonjun Yim, Anupam K. Garg, Sahil H. Shah, Jesse V. Jokerst, and Daniel L. Chao. "Assessing the Physiological Relevance of Cough Simulators for Respiratory Droplet Dispersion." Journal of Clinical Medicine 9, no. 9 (2020): 3002. http://dx.doi.org/10.3390/jcm9093002.

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Various breathing and cough simulators have been used to model respiratory droplet dispersion and viral droplets, in particular for SARS-CoV-2 modeling. However, limited data are available comparing these cough simulations to physiological breathing and coughing. In this study, three different cough simulators (Teleflex Mucosal Atomization Device Nasal (MAD Nasal), a spray gun, and GloGermTM MIST) that have been used in the literature were studied to assess their physiologic relevance. Droplet size, velocity, dispersion, and force generated by the simulators were measured. Droplet size was mea

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Moritani, S., T. Yamamoto, H. Andry, M. Inoue, and T. Kaneuchi. "Using digital photogrammetry to monitor soil erosion under conditions of simulated rainfall and wind." Soil Research 48, no. 1 (2010): 36. http://dx.doi.org/10.1071/sr09058.

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We investigated a method to measure sheet erosion by characterising the soil erosion of an upland field in a dryland environment. Digital photogrammetry was used to measure the erosion rates of soil surfaces packed to different densities under simulated rainfall or wind conditions. The photogrammetry system consisted of 2 digital cameras, a rainfall simulator, a wind tunnel, and a computer program for 3-dimensional algorithm analysis. First, we assessed the accuracy of our method by comparing conventionally measured data to photogrammetric data under conditions of either no rainfall or no wind

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Tandjaoui, Djamel, Messaoud Doudou, and Imed Romdhani. "FH-MAC." International Journal of Grid and High Performance Computing 1, no. 4 (2009): 40–56. http://dx.doi.org/10.4018/jghpc.2009070804.

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In this article, the authors propose a new hybrid MAC protocol named H-MAC for wireless mesh networks. This protocol combines CSMA and TDMA schemes according to the contention level. In addition, it exploits channel diversity and provides a medium access control method that ensures the QoS requirements. Using ns-2 simulator, we have implemented and compared H-MAC with other MAC protocol used in Wireless Network. The results showed that H-MAC performs better compared to Z-MAC, IEEE 802.11 and LCM-MAC.

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Li, Chang, and Lian Fen Huang. "Research on Rate Adaptation Used Simulated Annealing Algorithm." Applied Mechanics and Materials 195-196 (August 2012): 655–60. http://dx.doi.org/10.4028/www.scientific.net/amm.195-196.655.

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This paper analyzes the PHY layer of IEEE 802.11 standards for a variety of transmission rate, after learned that MAC layer does not provide for its adaptive approach. With the study of various adaptive algorithms, the SAARF protocol based on simulated annealing algorithm is proposed on MAC Layer rate adaptation, which can adaptively adjust transmitting rate. Compared with ARF (Auto Rate Fallback) protocol, SAARF can more effectively improve the throughput from the simulation results.

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Stolbov, Denys Volodymyrovych. "Development of software for teaching students safety work in e-mail." Theory and methods of learning mathematics, physics, informatics 13, no. 2 (2015): 201–9. http://dx.doi.org/10.55056/tmn.v13i2.787.

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This paper highlights the main aspects in development of e-mail simulator. The paper shows features of teaching students e-mail security and describes steps of development the simulator. The result of the paper includes an example of working the simulator. The research focus: to describe design and implementation features of the software for teaching students safety work in e-mail. Goals: 1) to reveal the need for teaching students safety work in e-mail; 2) determine the technical requirements of software for teaching students safety work in e-mail; 3) describe the software logical

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Choi, Hyung Yun, Woo Jin Choi, Seungho Kwak, and Sunguk Jun. "E2 Reach envelop and discomfort map construction under simulated driving task condition(English session)." Proceedings of the Symposium on sports and human dynamics 2010 (2010): 455–60. http://dx.doi.org/10.1299/jsmeshd.2010.455.

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Keizer, Will P. M. N. "APAS: An Advanced Phased-Array Simulator." IEEE Antennas and Propagation Magazine 52, no. 2 (2010): 40–56. http://dx.doi.org/10.1109/map.2010.5525565.

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Jayarathne, Y. G. Shamalee Wasana, Riitta Partanen, and Jules Bennet. "Objective Simulated Bush Engagement Experience (OSBEE): A novel approach to promote rural clinical workforce." Asia Pacific Scholar 6, no. 2 (2021): 94–96. http://dx.doi.org/10.29060/taps.2021-6-2/cs2449.

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The mal-distributed Australian medical workforce continues to result in rural medical workforce shortages. In an attempt to increase rural medical workforce, the Australian Government has invested in the Rural Health Multidisciplinary Training (RHMT) program, involving 21 medical schools (RHMT program, 2020). This funding requires participating universities to ensure at least 25% of domestic students attend a year-long rural placement during their clinical years and 50% of domestic students experience a short-term rural clinical placement for at least four weeks.

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Ramlee, Muhammad Hanif, Mohammed Rafiq Abdul Kadir, and Habibollah Harun. "Three-Dimensional Modelling and Finite Element Analysis of an Ankle External Fixator." Advanced Materials Research 845 (December 2013): 183–88. http://dx.doi.org/10.4028/www.scientific.net/amr.845.183.

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The use of ankle external fixator to treat pilon fracture Type III is popular amongst surgeons as it can reduce complications such as non-union and mal-union. Even though configurations of the connecting bars are important, the material also plays a major factor for a successful outcome. In this paper, the Delta external fixator with simulated ankle pilon fractures Type III were modelled and analysed under two different materials; titanium alloy and stainless steel. The finite element model includes tibia, fibula, talus, calcaneus, cuboid, navicular, three cuneiforms and five metatarsals bone.

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Wang, Hui, Kun Yan, Hou Lei Gao, and Xue Wei Chen. "Simulation and Analysis of Transformer Inrush Current and its Impact on Current Differential Protection." Advanced Materials Research 732-733 (August 2013): 712–16. http://dx.doi.org/10.4028/www.scientific.net/amr.732-733.712.

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A transformer model was built using PSCAD. The generation mechanism, waveform characteristics and influence factors of inrush current were simulated and analyzed. Combined with transformer differential protection, this paper discussed the conventional methods to identify inrush current and the operation logic to prevent mal-operation caused by inrush current. The typical transformer differential protection operating criteria were also simulated under different fault conditions. The results show that digital simulation can properly present inrush current waveform characteristics, different kind

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Perdana, Doan, Albion Apta Zaim, Alfin Hikmaturokhman, Ananda Irsyad, and Nindy Ayu Marthaliana. "Analysis of Greedy Perimeter Stateless Routing Protocol Network Simulation using Bird Flocking Algorithm." JURNAL INFOTEL 14, no. 1 (2022): 15–19. http://dx.doi.org/10.20895/infotel.v14i1.706.

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The purpose of this study is to simulate the GPSR protocol network on NS3 using the bird flocking algorithm and to analyze the comparison of performance measurements obtained from the simulation results. The Greedy Perimeter Stateless Routing network was simulated using NS-3 in this simulation. The simulation area is created in length, width. The distance between nodes is 50 meters and is simulated in an area of 1000m x 300m for 30 seconds and 802.11 MAC protocol is used. This simulation was successfully implemented in finding the location of the nearest node using the GPSR protocol with the P

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Monfared, Ashkan, Gerald Mitteramskogler, Simon Gruber, J. Kenneth Salisbury, Jurgen Stampfl, and Nikolas H. Blevins. "High-Fidelity, Inexpensive Surgical Middle Ear Simulator." Otology & Neurotology 33, no. 9 (2012): 1573–77. http://dx.doi.org/10.1097/mao.0b013e31826dbca5.

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Cutrì, Elena, Paola Bagnoli, Emanuela Marcelli, et al. "A Mechanical Simulator of Cardiac Wall Kinematics." ASAIO Journal 56, no. 3 (2010): 164–71. http://dx.doi.org/10.1097/mat.0b013e3181d7db0c.

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Joshi, Abhishek V., Ben S. Prather, Chi-kwan Chan, Maciek Wielgus, and Charles F. Gammie. "Circular Polarization of Simulated Images of Black Holes." Astrophysical Journal 972, no. 2 (2024): 135. http://dx.doi.org/10.3847/1538-4357/ad5b51.

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Abstract Models of the resolved Event Horizon Telescope (EHT) sources Sgr A* and M87* are constrained by observations at multiple wavelengths, resolutions, polarizations, and time cadences. In this paper, we compare unresolved circular polarization (CP) measurements to a library of models, where each model is characterized by a distribution of CP over time. In the library, we vary the spin of the black hole, the magnetic field strength at the horizon (i.e., both SANE and magnetically arrested disk or MAD models), the observer inclination, a parameter for the maximum ion–electron temperature ra

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Axford, David Timothy, Robert Potra, Richard Appleyard, et al. "Development of a Cadaveric Shoulder Motion Simulator with Open-Loop Iterative Learning for Dynamic, Multiplanar Motion: A Preliminary Study." Journal of Clinical Medicine 12, no. 14 (2023): 4596. http://dx.doi.org/10.3390/jcm12144596.

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Ex vivo shoulder motion simulators are commonly used to study shoulder biomechanics but are often limited to performing simple planar motions at quasi-static speeds using control architectures that do not allow muscles to be deactivated. The purpose of this study was to develop an open-loop tendon excursion controller with iterative learning and independent muscle control to simulate complex multiplanar motion at functional speeds and allow for muscle deactivation. The simulator performed abduction/adduction, faceted circumduction, and abduction/adduction (subscapularis deactivation) using a c

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Wang, Ying, Zhi Gang Jin, and Yi Shan Su. "Simulator-to-Emulator: Analysis and Design of Experiment Platform for Underwater Sensor Networks." Applied Mechanics and Materials 473 (December 2013): 219–25. http://dx.doi.org/10.4028/www.scientific.net/amm.473.219.

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Researchers have proposed many protocols for underwater sensor networks (UWSN) in recent years. How to test the designed protocols accurately and effectively in a lab controlled environment has become an important problem. The existing simulators and emulators for UWSN are analyzed and how to design an experimental platform from simulator to emulator in a laboratory environment is proposed. It can accurately simulate the complex environment in water just using a computer, and test the algorithms and protocols for UWSN; it can also do the test in a real environment by the combination of hardwar

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Ersoy Cangir, Özge, Mustafa Yıldırım, and Nurgül Bostan. "Faculty network system implementation using cisco packet tracer." Journal of Computer & Electrical and Electronics Engineering Sciences 1, no. 1 (2023): 20–24. http://dx.doi.org/10.51271/jceees-0005.

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In this study, the faculty network system was designed using the Cisco Packet Tracer program without using any physical components. The aim was to simulate the network structure of the faculty and show the engineering faculty on the campus map, and to enable communication between the computers inside the faculty by configuring similar devices to real routers, switches, and servers. The management of the IP configuration of the devices in the network, and the configuration of the router, switch, and server used in the network (DNS, DHCP, FTP, HTTP, and MAIL) were carried out in the Cisco Packet

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Lordkaew, Sittichai, Narit Yimyam, Anupong Wongtamee, Sansanee Jamjod, and Benjavan Rerkasem. "Evaluating a heat-tolerant wheat germplasm in a heat stress environment." Plant Genetic Resources: Characterization and Utilization 17, no. 04 (2019): 339–45. http://dx.doi.org/10.1017/s1479262119000054.

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AbstractHeat stress, a regular risk to wheat in the subtropics, is a growing threat in other wheat producing regions as the global temperature rises. This paper reports on three experiments evaluating 49 entries of the 13th High Temperature Wheat Yield Trial (13HTWYT) from the International Centre for Maize and Wheat Improvement (distributed in 2014), with Fang 60 as the local check, at two locations at Chiang Mai, Thailand, a designated representative of the wheat mega-environment 5, in which temperature for the coolest month averages &gt;17.5 °C and the crop is subjected to high temperat

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Satheeshkumar, M., M. R. Thansekhar, C. Anbumeenakshi, and S. Suresh. "Effect of Geometrical Parameters on Flow Mal-Distribution in a Wavy Microchannel." Applied Mechanics and Materials 813-814 (November 2015): 674–78. http://dx.doi.org/10.4028/www.scientific.net/amm.813-814.674.

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Microchannels are of current interest for use in heat exchangers, where very high heat transfer performance is desired. Microchannels provide very high heat transfer coefficients because of their small hydraulic diameters. In this study, a numerical investigation of fluid flow in microchannels with varying hydraulic diameters is presented. Six channels with wavy shape are considered. Header is the major part in the microchannel, which supplies fluid into different channels. A CFD model was created to simulate the fluid flow in the header and microchannels. In this work, five different shapes o

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Huang, Caiwen, Horace Cheng, Yves Bureau, Hanif M. Ladak, and Sumit K. Agrawal. "Automated Metrics in a Virtual-Reality Myringotomy Simulator." Otology & Neurotology 39, no. 7 (2018): e601-e608. http://dx.doi.org/10.1097/mao.0000000000001867.

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Alhussaini, Mohamed A., Renee M. Banakis Hartl, Victor Benichoux, Daniel J. Tollin, Herman A. Jenkins, and Nathaniel T. Greene. "Intracochlear Pressures in Simulated Otitis Media With Effusion." Otology & Neurotology 39, no. 7 (2018): e585-e592. http://dx.doi.org/10.1097/mao.0000000000001869.

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Pantalos, George M., Constantine Ionan, Steven C. Koenig, et al. "Expanded Pediatric Cardiovascular Simulator for Research and Training." ASAIO Journal 56, no. 1 (2010): 67–72. http://dx.doi.org/10.1097/mat.0b013e3181c838ae.

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Suwarno, Suwarno, and Doni Pinayungan. "Solar power forecasting model as a renewable generation source on virtual power plants." Bulletin of Electrical Engineering and Informatics 13, no. 2 (2024): 702–12. http://dx.doi.org/10.11591/eei.v13i2.5870.

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This paper describes modeling solar power generation as a renewable energy generator by simulating the analytical approach mean absolute error and root mean square error (MAE and RMSE). This research estimates the error referring to long short-term memory (LSTM) network learning. Related to this, the Indonesian government is currently actively developing solar power plants without ignoring the surrounding environment. The integration of solar power sources without accurate power prediction can hinder the work of the grid and the use of new and renewable generation sources. To overcome this, vi

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Vaidyanathan, Viswanath, and Jeffrey E. Fernandez. "Maf for Males Performing Drilling Tasks." Proceedings of the Human Factors Society Annual Meeting 36, no. 10 (1992): 692–96. http://dx.doi.org/10.1177/154193129203601011.

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A laboratory experiment was conducted using the psychophysical approach to determine maximum acceptable frequency (MAF) for a simulated sheet metal drilling task under varying angles of wrist flexion. Fifteen male students served as subjects for this study. The subjects were asked to perform a simulated drilling task in five different wrist flexion postures. Results indicated that MAF was significantly reduced (p<0.001) for deviated wrist postures in the transverse plane. It was noted that there was a 33% decrease in MAF values from 0 degree wrist flexion (neutral posture) to 40 degree wris

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Nasir, Adnan, and Boon Hee Soong. "A Simulation Platform for Evaluating RFID and WSN’s Energy Efficiencies." Journal of Communications Software and Systems 9, no. 3 (2013): 184. http://dx.doi.org/10.24138/jcomss.v9i3.148.

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Advances in the wireless, RFID and sensor technologies has given rise to a plethora of diverse WSN motes that can be used in association with numerous applications. Experimenting with new MAC algorithms and various functionalities on a real sensor network to obtain energy efficiency is both time consuming and expensive especially when these different mote platforms are deployed in one application. Generally Simulators are used to approximate the performance of MAC protocols. Out of the numerous simulators available, none can simulate the energy efficiencies given different types of motes and e

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César Cavalcanti Roza, Válber, and Octavian Adrian Postolache. "Multimodal Approach for Emotion Recognition Based on Simulated Flight Experiments." Sensors 19, no. 24 (2019): 5516. http://dx.doi.org/10.3390/s19245516.

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The present work tries to fill part of the gap regarding the pilots’ emotions and their bio-reactions during some flight procedures such as, takeoff, climbing, cruising, descent, initial approach, final approach and landing. A sensing architecture and a set of experiments were developed, associating it to several simulated flights ( N f l i g h t s = 13 ) using the Microsoft Flight Simulator Steam Edition (FSX-SE). The approach was carried out with eight beginner users on the flight simulator ( N p i l o t s = 8 ). It is shown that it is possible to recognize emotions from different pilots in

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Christner, Jennifer G., R. Brent Stansfield, Jocelyn H. Schiller, Arin Madenci, Patricia M. Keefer, and Ken Pituch. "Use of Simulated Electronic Mail (E-mail) to Assess Medical Student Knowledge, Professionalism, and Communication Skills." Academic Medicine 85 (October 2010): S1—S4. http://dx.doi.org/10.1097/acm.0b013e3181ed45f8.

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Kasarda R Mészáros, G., O. Kadlečík, E. Hazuchová, V. Šidlová, and I. Pavlík. "Influence of mating systems and selection intensity on the extent of inbreeding and genetic gain in the Slovak Pinzgau cattle." Czech Journal of Animal Science 59, No. 5 (2014): 219–26. http://dx.doi.org/10.17221/7402-cjas.

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The aim of the present paper was to simulate the scenarios for a maximum avoidance of inbreeding (MAI) mating strategy, and compare it with a random mating alternative, with the main focus on inbreeding and development of the genetic gain. The parameters of the simulation were based on the structure of the Slovak Pinzgau active population of 2868 animals (930 purebred cows). The selection under a total merit index (TMI) was simulated, covering the milk, survival, and live weight breeding value estimation results. The heritability of TMI (h<sup>2</sup> = 0.09) was estimated using a

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ABDELMOUMENE, Abdelkader, Rachid BOUDERBALA, and Hamid BENTARZI. "Design and Evaluation of a DSP Based Differential Relay of Power Transformer." Algerian Journal of Signals and Systems 1, no. 1 (2021): 69–78. http://dx.doi.org/10.51485/ajss.v1i1.20.

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The problem of mal operation of differential protection of power transformer due to the inrush magnetizing current has long considered as a challenging problem. Several types of protection relays have been used to solve the issue (basic relay, percentage relay, multi slop ….). Each of them has its advantage and its limits. In this paper, a Digital differential relay has been developed and simulated. The logic used to distinguish between the inrush current and the internal fault is based on the theory of harmonic analysis. The behavior of the presented relay has been simulated versus various si

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