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Articles de revues sur le sujet « Speed level »

Auteur : Grafiati

Publié le 7 juin 2025

Mis à jour le 2 août 2025

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1

Zhao, Na, Xiashu Su, Xianluo Meng, et al. "Sensitivity Study of WRF Model at Different Horizontal Resolutions for the Simulation of Low-Level, Mid-Level and High-Level Wind Speeds in Hebei Province." Atmosphere 16, no. 7 (2025): 891. https://doi.org/10.3390/atmos16070891.

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This study evaluated the wind speed simulation performance of the Weather Research and Forecasting (WRF) model at three resolutions in Hebei Province based on wind speed data from 2022. The results show that the simulation effectiveness of the WRF model for wind speeds at different heights varies significantly under different seasons and topographic conditions. In general, the model simulates the wind speed at the high level most accurately, followed by the mid level, and the simulation of low level wind speed shows the largest bias. Increasing the model resolution significantly improves the s

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Yin, Jicheng, and Seung-Hoon Hwang. "Adaptive Speed Control Scheme Based on Congestion Level and Inter-Vehicle Distance." Electronics 13, no. 13 (2024): 2678. http://dx.doi.org/10.3390/electronics13132678.

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Cellular vehicle-to-everything (C-V2X) enables short-distance communication between vehicles and other users to improve road safety through data sharing. Conventional research on C-V2X typically assumes that vehicles travel at the same speed with a fixed inter-vehicle distance (Disinter). However, this assumption does not reflect the real driving environment or promote road traffic efficiency. Conversely, assigning different speeds to vehicles without a structured approach inevitably increases the collision risk. Therefore, determining appropriate speeds for each vehicle in the C-V2X framework

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Shubin, V. V. "High-Speed CMOS Voltage Level Converter." Nano- i Mikrosistemnaya Tehnika 20, no. 11 (2018): 695–703. http://dx.doi.org/10.17587/nmst.20.695-703.

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Abbas, Mohamed. "Toward high-speed level-crossing ADCs." International Conference on Electrical Engineering 8, no. 8th (2012): 1–8. http://dx.doi.org/10.21608/iceeng.2012.30667.

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Baumann-Stanzer, Kathrin, Sirma Stenzel, Gabriele Rau, Martin Piringer, Felix Feichtinger, and Théophane Costabloz. "Monitoring and Modeling Roof-Level Wind Speed in a Changing City." Atmosphere 11, no. 1 (2020): 87. http://dx.doi.org/10.3390/atmos11010087.

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Results of an observational campaign and model study are presented demonstrating how the wind field at roof-level in the urban area of Vienna changed due to the construction of a new building nearby. The investigation was designed with a focus on the wind energy yield of a roof-mounted small wind turbine but the findings are also relevant for air dispersion applications. Wind speed profiles above roof top are simulated with the complex fluid dynamics (CFD) model MISKAM (Mikroskaliges Klima- und Ausbreitungsmodell, microscale climate and dispersion model). The comparison to mast measurements re

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Wickler, S. J., D. F. Hoyt, E. A. Cogger, and M. H. Hirschbein. "Preferred speed and cost of transport: the effect of incline." Journal of Experimental Biology 203, no. 14 (2000): 2195–200. http://dx.doi.org/10.1242/jeb.203.14.2195.

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Preferred speed is the behavioral tendency of animals to utilize a relatively narrow set of speeds near the middle of a much broader range that they are capable of using within a particular gait. Possible explanations for this behavior include minimizing musculoskeletal stresses and maximizing energetic economy. If preferred speed is determined by energetic economy (cost of transport, C(T)), then shifts in preferred speed should produce shifts in C(T). To test this hypothesis, preferred speeds were measured in trotting horses on the level and on an incline. The preferred trotting speed decreas

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Vescovi, Jason D. "Impact of Maximum Speed on Sprint Performance During High-Level Youth Female Field Hockey Matches: Female Athletes in Motion (FAiM) Study." International Journal of Sports Physiology and Performance 9, no. 4 (2014): 621–26. http://dx.doi.org/10.1123/ijspp.2013-0263.

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The aim of this study was to examine the impact of maximum sprint speed on peak and mean sprint speed during youth female field hockey matches. Two high-level female field hockey teams (U-17, n = 24, and U-21, n = 20) were monitored during a 4-game international test series using global position system technology and tested for maximum sprint speed. Dependent variables were compared using a 3-factor ANOVA (age group, position, and speed classification); effect sizes (Cohen d) and confidence limits were also calculated. Maximum sprint speed was similar between age groups and positions, with fas

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Krawczyk, Marcin, Mariusz Pociecha, Mariusz Ozimek, Aleksandra Stepek, and Paulina Kozioł. "VALUE OF SPEED CAPABILITIES IN YOUTH SPEED CLIMBING AT HIGH SPORTS LEVEL." SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference 6 (May 20, 2020): 264. http://dx.doi.org/10.17770/sie2020vol6.4862.

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Current research on speed climbing at the senior level shows that speed capabilities are a significant factor determining climbing time. The main purpose of our research was to evaluate the level of speed capabilities among young speed climbers and to examine the relationship between the level of speed capabilities and the results achieved during an international competition. The subjects of the research were girls and boys in the following age categories: Female Youth A (age=16.6), Female Youth B (age=14.5 years), Male Youth A (age=16.87 years) and Male Youth B (age=14.8 years). Measurements

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Emeis, Stefan. "Wind speed and shear associated with low-level jets over Northern Germany." Meteorologische Zeitschrift 23, no. 3 (2014): 295–304. http://dx.doi.org/10.1127/0941-2948/2014/0551.

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Black, Matthew I., Joseph C. Handsaker, Sam J. Allen, Stephanie E. Forrester, and Jonathan P. Folland. "Is There an Optimal Speed for Economical Running?" International Journal of Sports Physiology and Performance 13, no. 1 (2018): 75–81. http://dx.doi.org/10.1123/ijspp.2017-0015.

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The influence of running speed and sex on running economy is unclear and may have been confounded by measurements of oxygen cost that do not account for known differences in substrate metabolism, across a limited range of speeds, and differences in performance standard. Therefore, this study assessed the energy cost of running over a wide range of speeds in high-level and recreational runners to investigate the effect of speed (in absolute and relative terms) and sex (men vs women of equivalent performance standard) on running economy. To determine the energy cost (kcal · kg−1 · km−1) of subma

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Mori, Yuto, Soichiro Yokoyama, Tomohisa Yamashita, Hidenori Kawamura, and Masato Mori. "Development of Assistance Level Adjustment Function for Variable Load on a Forearm-Supported Robotic Walker." Sensors 24, no. 19 (2024): 6456. http://dx.doi.org/10.3390/s24196456.

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With the progression of an aging society, the importance of walking assistance technology has been increasing. The research and development of robotic walkers for individuals requiring walking support are advancing. However, there was a problem that the conventional constant support amount did not satisfy the propulsion force required for the walking speed that users wanted. In this study, in order to solve this problem, we propose an algorithm for determining the support amount to maintain the walking speed when the average walking speed of each user is set as the target speed. A robotic walk

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Agrawal, Ankit, Rakesh Singh Lodhi, and Pragya Nema. "Indirect vector control for induction motor drive using two level and five level inverter." International Journal of Applied Power Engineering 8, no. 2 (2019): 134–44. https://doi.org/10.11591/ijape.v8.i2.pp134-144.

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This paper represent modelling & simulation of indirect vector control for induction motor drive using two level and five level inverter. To overcome of lower order harmonics, THD & speed torque characteristics of three phase squirrel cage induction motor. This paper provides solution through indirect vector control & SPWM technique for multilevel inverter. A comparison and performance of two level and five level inverter are used in motor to control speed, current and torque. Matlab simulation environment are taken to simulate indirect vector control for induction motor drive usin

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Ankit, Agrawal, Singh Lodhi Rakesh, and Nema Pragya. "Indirect vector control for induction motor drive using two level and five level inverter." International Journal of Applied Power Engineering 8, no. 2 (2019): 134~144. https://doi.org/10.5281/zenodo.7354373.

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This paper represent modelling & simulation of indirect vector control for induction motor drive using two level and five level inverter. To overcome of lower order harmonics, THD & speed torque characteristics of three phase squirrel cage induction motor. This paper provides solution through indirect vector control & SPWM technique for multilevel inverter. A comparison and performance of two level and five level inverter are used in motor to control speed, current and torque. Matlab simulation environment are taken to simulate indirect vector control for induction motor drive usin

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Das, Amit Kumar, and Prasanta Kumar Bhuyan. "Self-Organizing Tree Algorithm (SOTA) Clustering for Defining Level of Service (LOS) Criteria of Urban Streets." Periodica Polytechnica Transportation Engineering 47, no. 4 (2018): 309–17. http://dx.doi.org/10.3311/pptr.9911.

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This study is intended to define the Free Flow Speed (FFS) ranges of urban street classes and speed ranges of Level of Service (LOS) categories. In order to accomplish the study FFS data and average travel speed data were collected on five urban road corridors in the city of Mumbai, India. Mid-sized vehicle (car) mounted with Global Positioning System (GPS) device was used for the collection of large number of speed data. Self-Organizing Tree Algorithm (SOTA) clustering method and five cluster validation measures were used to classify the urban streets and LOS categories. The above study divul

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Tummala, Suresh Kumar, Kyama Hemalatha, Ibrahim H. Al-Kharsan, and Vijaylakshmi Sajwan. "Performance of 7-level cascade H-bridge multi level inverter driven induction motor drive." E3S Web of Conferences 391 (2023): 01003. http://dx.doi.org/10.1051/e3sconf/202339101003.

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In recent times, many of industrial applications require smooth control over a wide range of speeds or smooth torque control without effecting motor performance and efficiency. So, cascaded H-Bridge multilevel inverters convert the low or medium level voltage to medium or high level of output voltages. In this paper, a cascaded H-Bridge multilevel seven level inverter is operated by using sinusoidal pulse width modulation technique. This PWM technique will improves the smoothness of waveform by reducing the lower order harmonics. And analysed its performances like speed, torque, THD etc.

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Wickler, S. J., D. F. Hoyt, E. A. Cogger, and K. M. Hall. "Effect of load on preferred speed and cost of transport." Journal of Applied Physiology 90, no. 4 (2001): 1548–51. http://dx.doi.org/10.1152/jappl.2001.90.4.1548.

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Horses have a tendency to utilize a relatively narrow set of speeds near the middle of a much broader range they are capable of using within a particular gait, i.e., a preferred speed. Possible explanations for this behavior include minimizing musculoskeletal stresses and maximizing metabolic economy. If metabolic economy (cost of transport, CT) and preferred speeds are linked, then shifts in CT should produce shifts in preferred speed. To test this hypothesis, preferred speed was measured in trotting horses ( n = 7) unloaded on the level and loaded with 19% of their body weight on the level.

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Agrawal, Ankit, Rakesh Singh Lodhi, and Pragya Nema. "Indirect vector control for induction motor drive using two level and five level inverter." International Journal of Applied Power Engineering (IJAPE) 8, no. 2 (2019): 134. http://dx.doi.org/10.11591/ijape.v8.i2.pp134-144.

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<p>This paper represent modelling &amp; simulation of indirect vector control for induction motor drive using two level and five level inverter. To overcome of lower order harmonics, THD &amp; speed torque characteristics of three phase squirrel cage induction motor. This paper provides solution through indirect vector control &amp; SPWM technique for multilevel inverter. A comparison and performance of two level and five level inverter are used in motor to control speed, current and torque. Matlab simulation environment are taken to simulate indirect vector control for induc

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18

Kuhman, Daniel, Jutaluk Kongsuk, William R. Reed, et al. "Effects of Advanced Age and Parkinson’s Disease on Joint-Level Kinetic Adaptations to Faster Walking Speeds." Biomechanics 2, no. 1 (2022): 76–86. http://dx.doi.org/10.3390/biomechanics2010008.

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Redistribution of mechanical output from the ankle to the hip during walking occurs with advanced age. Changes to tissues spanning the ankle may limit the joint from performing mechanical functions necessary to walk at fast speeds and older adults may redistribute work proximally to compensate. Older adults with Parkinson’s disease (PD) do not exhibit the distal-to-proximal redistribution and may therefore be limited in reaching fast walking speeds. We tested whether advanced aging, regardless of the presence of PD, limits the ability to increase motor-like behavior of the ankle as walking spe

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Anderson, Dennis E., Christopher T. Franck, and Michael L. Madigan. "Age Differences in the Required Coefficient of Friction During Level Walking Do Not Exist When Experimentally-Controlling Speed and Step Length." Journal of Applied Biomechanics 30, no. 4 (2014): 542–46. http://dx.doi.org/10.1123/jab.2013-0275.

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The effects of gait speed and step length on the required coefficient of friction (COF) confound the investigation of age-related differences in required COF. The goals of this study were to investigate whether age differences in required COF during self-selected gait persist when experimentally-controlling speed and step length, and to determine the independent effects of speed and step length on required COF. Ten young and 10 older healthy adults performed gait trials under five gait conditions: self-selected, slow and fast speeds without controlling step length, and slow and fast speeds whi

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20

Tao, Guidong, Zhiming Liu, Chengxiang Ji, and Guangxue Yang. "Establishment and Analysis of Load Spectrum for Bogie Frame of High-Speed Train at 400 km/h Speed Level." Machines 12, no. 6 (2024): 382. http://dx.doi.org/10.3390/machines12060382.

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The bogie frame, as one of the most critical load-bearing structures of the Electric Multiple Unit (EMU), is responsible for bearing and transmitting various loads from the car body, wheelsets, and its own installation components. With the increasing operating speed of high-speed EMUs, especially when the design and operational speeds exceed 400 km/h, the applicability of current international standards is uncertain. The load spectrum serves as the foundation for structural reliability design and fatigue evaluation. In this paper, the measured loads of the bogie frame of a CR400AF high-speed t

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Neamțu, G., A. M. Țîțu, A. A. Boroiu, and A. Boroiu. "Research on the influence of traffic conditions on noise level in the passenger compartment of motor vehicles." IOP Conference Series: Materials Science and Engineering 1303, no. 1 (2024): 012050. http://dx.doi.org/10.1088/1757-899x/1303/1/012050.

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Abstract The research investigates the noise levels measured in the passenger compartments of several automobiles. These vehicles are powered by various engines, travel on various highways, and function at differing speeds and acceleration. The results are visually processed using specialist software. The study investigates the effects of three major sources of automotive noise: engine operation, tire-road contact, and friction between the car body and the air. The immis noise in the passenger compartment is reported to be mostly impacted by the engine’s operational characteristics (load and s

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Rodriguez-Elliott, Stephen, and Karl Vachuska. "Measuring the Digital Divide: A Neighborhood-Level Analysis of Racial Inequality in Internet Speed during the COVID-19 Pandemic." Societies 13, no. 4 (2023): 92. http://dx.doi.org/10.3390/soc13040092.

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Since the beginning of the COVID-19 pandemic, internet access has been vital to ensuring individuals can work from home, attend online school and maintain contact with loved ones. While research has already shown that inequalities exist regarding who has access to the internet, less research has used actual internet speed test data to examine neighborhood inequalities in internet access, and even less research has explored trends related to this during the COVID-19 pandemic. Using a dataset containing over 100 million internet speed tests in the United States, we analyze neighborhood-level var

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Hidayat, A. "Street Crowdedness and Urban Congestion Level by MAC and GPS Data." IOP Conference Series: Earth and Environmental Science 1353, no. 1 (2024): 012026. http://dx.doi.org/10.1088/1755-1315/1353/1/012026.

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Abstract Wi-Fi is one of the emerging technologies today. Wi-Fi refers to MAC (Media Access Control) address data. A MAC address represents a device number. In other words, it represents the number of people. The system uses MAC address data to determine road traffic congestion and land use, detects the number of terminals using a Wi-Fi scanner, and analyzes vehicle speed using GPS. The purpose of this research is to understand city-level services from traffic services and road congestion status and degree of congestion using Wi-Fi data (MAC addresses). This method was used for this study by p

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Kopp, Christophe, Alexandre Ferron, Jean-Michel Hartmann, et al. "Wafer Level High-Speed Germanium Photodiode Array Integration." IEEE Journal of Selected Topics in Quantum Electronics 17, no. 3 (2011): 526–30. http://dx.doi.org/10.1109/jstqe.2011.2108639.

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Kwon, O. K., B. W. Langley, R. F. W. Pease, and M. R. Beasley. "Superconductors as very high-speed system-level interconnects." IEEE Electron Device Letters 8, no. 12 (1987): 582–85. http://dx.doi.org/10.1109/edl.1987.26735.

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Hooper, C. C., and J. P. Wiley. "BRONCHIAL RESPONSIVENESS PROFILE OF PROVINCIAL LEVEL SPEED SKATERS." Medicine & Science in Sports & Exercise 31, Supplement (1999): S95. http://dx.doi.org/10.1097/00005768-199905001-00323.

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., G. Srinivasulu. "DESIGN OF LOW POWER HIGH SPEED LEVEL SHIFTER." International Journal of Research in Engineering and Technology 03, no. 16 (2014): 12–15. http://dx.doi.org/10.15623/ijret.2014.0316003.

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Pamungkas, Reza Dwi, Mohammad Arif Ali, and Nanang Indardi. "Physical Fitness (Speed Level) of Female Volleyball Athletes." Altius: Jurnal Ilmu Olahraga dan Kesehatan 12, no. 2 (2023): 320–26. https://doi.org/10.36706/altius.v12i2.14.

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The purpose of this study was to determine the status of the physical condition component of speed with a unit of time in women's volleyball athletes KKO Semarang City. This research is a quantitative research with a descriptive approach. The sampling technique uses total sampling with a sample of volleyball athletes who are female as many as 17 people. The data retrieval instrument uses a 30-meter sprint test. The results showed that the physical condition component of speed in women's volleyball athletes in KKO Semarang City was in a fairly good category. The conclusion of this study is that

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Kumudha, G., and B. Ramesh K. "High Speed Gate Level Synchronous Full Adder Designs." Journal of VLSI Design and its Advancement 4, no. 3 (2022): 1–11. https://doi.org/10.5281/zenodo.6344095.

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<em>Digital computer systems are built on the foundation of addition. This paper presents three innovative gate level complete adder designs based on the elements of a conventional cell library: one using XNOR and multiplexer gates (XNM), another using XNOR, AND, Inverter, multiplexer, and complex gates (XNAIMC), and a third using XOR, AND, and complex gates (XAC). Many other existing gate level full adder realizations have been used to make comparisons. In view of broad simulations with a 32-bit carry-ripple adder execution focusing on three cycle, voltage, and temperature (PVT) corners of th

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Ryastama, Prima Nofan, Damar Setyo Prakasa, Muhammad Latifur Rochman, and Muji Setiyo. "STUDI EKSPERIMEN KINERJA SISTEM REFRIGERASI SETENGAH SIKLUS PADA KENDARAAN BERBAHAN BAKAR LPG." Jurnal Rekayasa Mesin 14, no. 1 (2023): 181–94. http://dx.doi.org/10.21776/jrm.v14i1.1197.

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The Air Conditioning (AC) system is an important requirement for vehicle passengers to get thermal comfort. However, the AC system draws power from the engine to drive the compressor. Meanwhile, vehicles driven by Liquefied Petroleum Gas (LPG) provide decent cooling potential to assist the main air conditioning system. Therefore, this study aims to examine the effect of cooling on LPG-fueled vehicles by utilizing LPG flow to be used as a secondary refrigerant. The research was carried out on a 1495 cc engine with a special evaporator which was tested at variations of blower speed 1, 2, and 3.

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Dr., A. Manoj Kumar. "COMPARISON OF SPEED AMONG SCHOOL LEVEL HOCKEY FOOTBALL AND CRICKET PLAYERS." International Journal of Scientific Research and Modern Education 2, no. 1 (2017): 146–48. https://doi.org/10.5281/zenodo.804230.

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The purpose of the study was to find out the comparison of speed among school level hockey, football and cricket players. Twenty hockey, football and cricket players were randomly selected from SMRV Higher Secondary School, Nagercoil, Kaniya Kumari District. They were selected as the subjects for this study and they already have experience by participating through interschool tournaments. The range of their age was between 15 to 17 years. The subjects were tested on Speed (50 meters run). The collected data were statistically analyzed by using Analysis of Covariance followed by Scheffe’s Post

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Saygin, Ali, and Alper Kerem. "Speed control of an induction motor by 6-switched 3-level inverter." Open Physics 15, no. 1 (2017): 1072–76. http://dx.doi.org/10.1515/phys-2017-0138.

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AbstractThis paper presents speed control analysis of an induction motor by a 6-switched 3-level inverter. In the analysis of topology, the study used the field oriented control technique which is widely used in the literature, easy and stable for operating systems. The field weaking technique was used for speeds exceeding nominal speed to reduce magnetic saturation and thermal losses. At the end of the process, it was observed to increase motor torque and inverter efficiency. Instead of using 12 switches in conventional 3-level inverters, 6 switches are used in this topology. Reduced number o

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Krueger, Oliver, and Hans von Storch. "Evaluation of an Air Pressure–Based Proxy for Storm Activity." Journal of Climate 24, no. 10 (2011): 2612–19. http://dx.doi.org/10.1175/2011jcli3913.1.

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Abstract Yearly percentiles of geostrophic wind speeds serve as a widely used proxy for assessing past storm activity. Here, daily geostrophic wind speeds are derived from a geographical triangle of surface air pressure measurements and are used to build yearly frequency distributions. It is commonly believed, however unproven, that the variation of the statistics of strong geostrophic wind speeds describes the variation of statistics of ground-level wind speeds. This study evaluates this approach by examining the correlation between specific annual (seasonal) percentiles of geostrophic and of

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Renfree, Andrew, and Alan St Clair Gibson. "Influence of Different Performance Levels on Pacing Strategy During the Women’s World Championship Marathon Race." International Journal of Sports Physiology and Performance 8, no. 3 (2013): 279–85. http://dx.doi.org/10.1123/ijspp.8.3.279.

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Purpose:To analyze pacing strategies displayed by athletes achieving differing levels of performance during an elite-level marathon race.Methods:Competitors in the 2009 IAAF Women’s Marathon Championship were split into groups 1, 2, 3, and 4 comprising the first, second, third, and fourth 25% of finishers, respectively. Final, intermediate, and personal-best (PB) times of finishers were converted to mean speeds, and relative speed (% of PB speed) was calculated for intermediate segments.Results:Mean PB speed decreased from groups 1 to 4, and speeds maintained in the race were 98.5% ± 1.8%, 97.

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MANILYUK, YU V., and V. V. FOMIN. "STUDYING AMPLIFICATION OF SURGE FLUCTUATIONS IN THE LEVEL OF THE SEA OF AZOV BASED ON MATHEMATICAL MODELING." Meteorologiya i Gidrologiya, no. 11 (November 2024): 61–73. https://doi.org/10.52002/0130-2906-2024-11-61-73.

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Amplification of the surge fluctuations in the level of the Sea of Azov caused by the passage of deep small-scale cyclones is studied using the ADCIRC nonlinear longwave hydrodynamic model. The influence of the speed and direction of cyclone movement on the magnitude of surges is investigated for the following coastal settlements: Taganrog, Dolzhanskaya, Primorsko-Akhtarsk, Temryuk, Mysovoe, Genichesk, Berdyansk, and Mariupol. Three types of cyclones whose speeds varied within 3-20 m/s are considered: western, southwestern, and northwestern ones. It has been found that when western and southwe

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Riggs, Peter J. "Optical transmission and refraction at the atomic level." Physics Education 59, no. 6 (2024): 065009. http://dx.doi.org/10.1088/1361-6552/ad721a.

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Abstract The standard explanations for the phenomena of transmission and refraction of electromagnetic waves of optical wavelengths upon entering a transparent medium is in terms of the speed of the waves being altered. However, these phenomena are explicable without assuming that the speed of electromagnetic waves changes. The actual speed does not alter in various media but is customarily assumed to do so as this facilitates straight-forward calculations and allows easily understood explanations to be advanced. An underlying account of transmission and refraction at the level of individual a

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Carus, Luis, and Isabel Castillo. "Injury prevention: Individual factors affecting adult recreational snowboarders’ actual and estimated speeds on regular slopes." PLOS ONE 16, no. 2 (2021): e0246931. http://dx.doi.org/10.1371/journal.pone.0246931.

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Speed is a main factor affecting the kinematic of snow-sports accidents and the degree of severity of the resulting injuries. The aim of this study was to measure on-slope actual maximum speeds of snowboarders and to assess their ability to accurately them with regard to individual factors such as gender, skill level, age and risk-taking behaviour and actual maximum speed. The data were obtained from a sample of 312 (67% male, 33% female) adult recreational snowboarders taking lessons in one of the major resorts in the Spanish Pyrenees. The Pearson correlation coefficient was used to investiga

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Wijaya, M. Sayid. "READING SPEED LEVEL AND COMPREHENSION IN SECOND LANGUAGE READING." Pedagogy : Journal of English Language Teaching 6, no. 1 (2018): 77. http://dx.doi.org/10.32332/pedagogy.v6i1.1087.

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Fluent readers are characterized by their ability in comprehending reading text flawlessly. They need no such a significant delay to process either word recognition or world knowledge while putting some efforts to get the gist of the text. Thus, their reading speed would increase by the time their word recognition skill improved. This also implicates their reading comprehension as well since they are skillful enough to relate what they know about the text with the text itself. However, that condition happened differently to students who joined Reading for General Purposes class. Some students

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Cavallo, Viola, and Michel Laurent. "Visual Information and Skill Level in Time-To-Collision Estimation." Perception 17, no. 5 (1988): 623–32. http://dx.doi.org/10.1068/p170623.

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Previous studies on the visual origin of time-to-collision ( Tc) information have demonstrated that Tc estimates can be based solely on the processing of target expansion rate (optic variable τ). But in the simulated situations used (film clips), there was little reliable information on speed (owing to reduced peripheral vision) and distance (owing to the absence of binocular distance cues) available. In order to determine whether these kinds of information are also taken into account, it is necessary to take an approach where the subject receives a more complete visual input. Thus, an experim

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Vo, Thanh Ha, and Thi Giang Pham. "A study on PMSM drive systems fed by multi-level inverter using linear quadratic regulator control for electric vehicle applications." TELKOMNIKA 21, no. 04 (2023): 917–25. https://doi.org/10.12928/telkomnika.v21i4.24432.

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This paper presents research on a permanent magnet synchronous motor (PMSM) by a 5-level T-type inverter using linear quadratic regulator (LQR) control for speed control. The space vector modulation (SVM) structure for the 5-level T-type inverter to improve the control quality of the PMSM drive system is presented. This paper aims to successfully design a state feedback controller to control motor speed in a permanent magnet synchronous motor drive system. Simulink results are performed with different speed ranges and the same torque load. These results will focus on evaluating quality when th

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Gualtieri, Antonio, Ermanno Rampinini, Roberto Sassi, and Marco Beato. "Workload Monitoring in Top-level Soccer Players During Congested Fixture Periods." International Journal of Sports Medicine 41, no. 10 (2020): 677–81. http://dx.doi.org/10.1055/a-1171-1865.

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AbstractThis study assessed the internal and external workload of starters and non-starters in a professional top-level soccer team during a congested fixture period. Twenty Serie A soccer players were monitored in this study during two mesocycles of 21 days each. Starters and non-starters were divided based on the match time played in each mesocycle. The following metrics were recorded: exposure time, total distance, relative total distance, high-speed running distance over 20 km·h−1, very high-speed running distance over 25 km·h−1, individual very high-speed distance over 80% of maximum peak

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Mole, Callum David, Georgios Kountouriotis, Jac Billington, and Richard McGilchrist Wilkie. "Optic flow speed modulates guidance level control: New insights into two-level steering." Journal of Experimental Psychology: Human Perception and Performance 42, no. 11 (2016): 1818–38. http://dx.doi.org/10.1037/xhp0000256.

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Kholijah, Gusmi, and Melva Silka Br Ginting. "Level of Satisfaction Using m-Banking." Jurnal Aplikasi Matematika dan Statistik 1, no. 1 (2022): 33–38. http://dx.doi.org/10.53625/jams.v1i1.3983.

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    Banks carry out activities to accommodate and distribute funds from the public to other communities, because the banking business relies on funds from the public that are stored in the bank concerned to be able to carry out its operations. Then, the more funds saved in the bank, the more developed the bank. The development of banks requires many people who become customers in a bank. Thus, to attract customers, banks issue products that aim to make it easier for people to make transactions, one of which is Mobile banking. Mobile-banking which functions as a service

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Batten, Heather R., Steven M. McPhail, Allison M. Mandrusiak, Paulose N. Varghese, and Suzanne S. Kuys. "Gait speed as an indicator of prosthetic walking potential following lower limb amputation." Prosthetics and Orthotics International 43, no. 2 (2018): 196–203. http://dx.doi.org/10.1177/0309364618792723.

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Background: The relationship between gait speed and prosthetic potential (K-level classifications) and function has not been explored among people transitioning from hospital rehabilitation to the community. Objectives: To examine gait speed at discharge from inpatient rehabilitation among people prescribed a prosthetic leg after unilateral lower limb amputation, and associations between gait speed, prosthetic potential and functional ability. Study design: Cohort. Methods: Gait speed (10-m walk test), K-level (Amputee Mobility Predictor) and Functional Independence Measure motor were compared

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Ocholi, M., K. E. Ibe, E. E. Iheonu, and E. E. Ameh. "Assessing Wind Impact on Noise Level Measurements for Application in Architectural Acoustics: A Preliminary Study." Nigerian Journal of Environmental Sciences and Technology 5, no. 2 (2021): 413–19. http://dx.doi.org/10.36263/nijest.2021.02.0290.

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In this study, we have used wind data obtained from an earlier work covering several locations in Nigeria to estimate the possible impact of wind on sound pressure levels. Estimated Weibull parameters were used to compute the most probable wind speed, the average wind speed and the duration for which wind speed exceeds or equal the most probable speed. Adopting the proposed criteria that wind is able to strengthen or weaken sound pressure levels by 3dB depending on wind direction, the effect of wind on sound pressure level was determined. Results showed that wind effect seemed more predominant

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Jing, Ming Gang, and Ji Tao Wu. "Image Interpolation Based on Level-Sets Motion with Artificial Speed Field." Advanced Materials Research 718-720 (July 2013): 2131–35. http://dx.doi.org/10.4028/www.scientific.net/amr.718-720.2131.

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This paper presents a novel image interpolation method based on level-sets motion (LSM). The proposed method computes the speed field of level-sets adaptively, according to which the contours in images evolve at proper speeds. Thus it can produce images with less jagged edges stably and fast. To suppress blurring artifacts, the shock filter is used to get sharper edges in images. And the new method can interpolate images with arbitrary magnification factors (MFs). Experimental results have verified the effectiveness of the proposed method in terms of both objective and subjective image quality

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Farris, Dominic James, and Gregory S. Sawicki. "The mechanics and energetics of human walking and running: a joint level perspective." Journal of The Royal Society Interface 9, no. 66 (2011): 110–18. http://dx.doi.org/10.1098/rsif.2011.0182.

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Humans walk and run at a range of speeds. While steady locomotion at a given speed requires no net mechanical work, moving faster does demand both more positive and negative mechanical work per stride. Is this increased demand met by increasing power output at all lower limb joints or just some of them? Does running rely on different joints for power output than walking? How does this contribute to the metabolic cost of locomotion? This study examined the effects of walking and running speed on lower limb joint mechanics and metabolic cost of transport in humans. Kinematic and kinetic data for

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Suryo Putranto, Leksmono, and Kevin Kurniawan. "Effect of type of road humps on vehicular speeds on residential roads." MATEC Web of Conferences 181 (2018): 04002. http://dx.doi.org/10.1051/matecconf/201818104002.

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To reduce potential pedestrian fatalities, in residential road maximum speed is 30km/hour. Apart from installing maximum speed signs, installing road humps may ensure speed reduction. This paper is intended to compare light vehicles and motorcycles speeds and speeds reductions due to road humps. Data collection was done in Modernland, Tanggerang City. Two road segments were observed, i.e. segments with standard and non-standard road humps. Observation was made in morning, noon and afternoon periods. A portable speed gun was used to measure the speed at about 50m and 25m before the road humps.

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Laumets, Rauno, Karel Viigipuu, Kerli Mooses, et al. "Lower Leg Length is Associated with Running Economy in High Level Caucasian Distance Runners." Journal of Human Kinetics 56, no. 1 (2017): 229–39. http://dx.doi.org/10.1515/hukin-2017-0040.

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AbstractThe aim of the present study was to investigate lower limb anthropometric and composition variables related to running economy (RE) and running performance in a homogeneous group of high level European distance runners. RE at the speeds of 14, 16 and 18 km·h−1 (189 ± 12; 188 ± 11; 187 ± 11 O2 ml·kg−1·km−1) and maximal oxygen uptake (VO2max) (67.3 ± 2.9 ml·kg−1·min−1) of 13 high level distance runners were determined on a motorised treadmill. Anthropometric variables and body composition were measured. The BMI was related to RE at the speed of 14 (r2 = 0.434; p = 0.014), 16 (r2 = 0.436;

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Hallgren, Christoffer, Jeanie A. Aird, Stefan Ivanell, et al. "Machine learning methods to improve spatial predictions of coastal wind speed profiles and low-level jets using single-level ERA5 data." Wind Energy Science 9, no. 4 (2024): 821–40. http://dx.doi.org/10.5194/wes-9-821-2024.

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Abstract. Observations of the wind speed at heights relevant for wind power are sparse, especially offshore, but with emerging aid from advanced statistical methods, it may be possible to derive information regarding wind profiles using surface observations. In this study, two machine learning (ML) methods are developed for predictions of (1) coastal wind speed profiles and (2) low-level jets (LLJs) at three locations of high relevance to offshore wind energy deployment: the US Northeastern Atlantic Coastal Zone, the North Sea, and the Baltic Sea. The ML models are trained on multiple years of

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